diff options
Diffstat (limited to '')
110 files changed, 53572 insertions, 0 deletions
diff --git a/sound/usb/6fire/Makefile b/sound/usb/6fire/Makefile new file mode 100644 index 000000000..7d353bbf7 --- /dev/null +++ b/sound/usb/6fire/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only +snd-usb-6fire-objs += chip.o comm.o midi.o control.o firmware.o pcm.o +obj-$(CONFIG_SND_USB_6FIRE) += snd-usb-6fire.o + diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c new file mode 100644 index 000000000..33e962178 --- /dev/null +++ b/sound/usb/6fire/chip.c @@ -0,0 +1,207 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Main routines and module definitions. + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#include "chip.h" +#include "firmware.h" +#include "pcm.h" +#include "control.h" +#include "comm.h" +#include "midi.h" + +#include <linux/moduleparam.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/gfp.h> +#include <sound/initval.h> + +MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>"); +MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver"); +MODULE_LICENSE("GPL v2"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */ +static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; +static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for the 6fire sound device"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for the 6fire sound device."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable the 6fire sound device."); + +static DEFINE_MUTEX(register_mutex); + +static void usb6fire_chip_abort(struct sfire_chip *chip) +{ + if (chip) { + if (chip->pcm) + usb6fire_pcm_abort(chip); + if (chip->midi) + usb6fire_midi_abort(chip); + if (chip->comm) + usb6fire_comm_abort(chip); + if (chip->control) + usb6fire_control_abort(chip); + if (chip->card) { + snd_card_disconnect(chip->card); + snd_card_free_when_closed(chip->card); + chip->card = NULL; + } + } +} + +static void usb6fire_chip_destroy(struct sfire_chip *chip) +{ + if (chip) { + if (chip->pcm) + usb6fire_pcm_destroy(chip); + if (chip->midi) + usb6fire_midi_destroy(chip); + if (chip->comm) + usb6fire_comm_destroy(chip); + if (chip->control) + usb6fire_control_destroy(chip); + if (chip->card) + snd_card_free(chip->card); + } +} + +static int usb6fire_chip_probe(struct usb_interface *intf, + const struct usb_device_id *usb_id) +{ + int ret; + int i; + struct sfire_chip *chip = NULL; + struct usb_device *device = interface_to_usbdev(intf); + int regidx = -1; /* index in module parameter array */ + struct snd_card *card = NULL; + + /* look if we already serve this card and return if so */ + mutex_lock(®ister_mutex); + for (i = 0; i < SNDRV_CARDS; i++) { + if (devices[i] == device) { + if (chips[i]) + chips[i]->intf_count++; + usb_set_intfdata(intf, chips[i]); + mutex_unlock(®ister_mutex); + return 0; + } else if (!devices[i] && regidx < 0) + regidx = i; + } + if (regidx < 0) { + mutex_unlock(®ister_mutex); + dev_err(&intf->dev, "too many cards registered.\n"); + return -ENODEV; + } + devices[regidx] = device; + mutex_unlock(®ister_mutex); + + /* check, if firmware is present on device, upload it if not */ + ret = usb6fire_fw_init(intf); + if (ret < 0) + return ret; + else if (ret == FW_NOT_READY) /* firmware update performed */ + return 0; + + /* if we are here, card can be registered in alsa. */ + if (usb_set_interface(device, 0, 0) != 0) { + dev_err(&intf->dev, "can't set first interface.\n"); + return -EIO; + } + ret = snd_card_new(&intf->dev, index[regidx], id[regidx], + THIS_MODULE, sizeof(struct sfire_chip), &card); + if (ret < 0) { + dev_err(&intf->dev, "cannot create alsa card.\n"); + return ret; + } + strcpy(card->driver, "6FireUSB"); + strcpy(card->shortname, "TerraTec DMX6FireUSB"); + sprintf(card->longname, "%s at %d:%d", card->shortname, + device->bus->busnum, device->devnum); + + chip = card->private_data; + chips[regidx] = chip; + chip->dev = device; + chip->regidx = regidx; + chip->intf_count = 1; + chip->card = card; + + ret = usb6fire_comm_init(chip); + if (ret < 0) + goto destroy_chip; + + ret = usb6fire_midi_init(chip); + if (ret < 0) + goto destroy_chip; + + ret = usb6fire_pcm_init(chip); + if (ret < 0) + goto destroy_chip; + + ret = usb6fire_control_init(chip); + if (ret < 0) + goto destroy_chip; + + ret = snd_card_register(card); + if (ret < 0) { + dev_err(&intf->dev, "cannot register card."); + goto destroy_chip; + } + usb_set_intfdata(intf, chip); + return 0; + +destroy_chip: + usb6fire_chip_destroy(chip); + return ret; +} + +static void usb6fire_chip_disconnect(struct usb_interface *intf) +{ + struct sfire_chip *chip; + + chip = usb_get_intfdata(intf); + if (chip) { /* if !chip, fw upload has been performed */ + chip->intf_count--; + if (!chip->intf_count) { + mutex_lock(®ister_mutex); + devices[chip->regidx] = NULL; + chips[chip->regidx] = NULL; + mutex_unlock(®ister_mutex); + + chip->shutdown = true; + usb6fire_chip_abort(chip); + usb6fire_chip_destroy(chip); + } + } +} + +static const struct usb_device_id device_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0ccd, + .idProduct = 0x0080 + }, + {} +}; + +MODULE_DEVICE_TABLE(usb, device_table); + +static struct usb_driver usb_driver = { + .name = "snd-usb-6fire", + .probe = usb6fire_chip_probe, + .disconnect = usb6fire_chip_disconnect, + .id_table = device_table, +}; + +module_usb_driver(usb_driver); diff --git a/sound/usb/6fire/chip.h b/sound/usb/6fire/chip.h new file mode 100644 index 000000000..8124259b4 --- /dev/null +++ b/sound/usb/6fire/chip.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ +#ifndef USB6FIRE_CHIP_H +#define USB6FIRE_CHIP_H + +#include "common.h" + +struct sfire_chip { + struct usb_device *dev; + struct snd_card *card; + int intf_count; /* number of registered interfaces */ + int regidx; /* index in module parameter arrays */ + bool shutdown; + + struct midi_runtime *midi; + struct pcm_runtime *pcm; + struct control_runtime *control; + struct comm_runtime *comm; +}; +#endif /* USB6FIRE_CHIP_H */ + diff --git a/sound/usb/6fire/comm.c b/sound/usb/6fire/comm.c new file mode 100644 index 000000000..49629d4bb --- /dev/null +++ b/sound/usb/6fire/comm.c @@ -0,0 +1,200 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Device communications + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#include "comm.h" +#include "chip.h" +#include "midi.h" + +enum { + COMM_EP = 1, + COMM_FPGA_EP = 2 +}; + +static void usb6fire_comm_init_urb(struct comm_runtime *rt, struct urb *urb, + u8 *buffer, void *context, void(*handler)(struct urb *urb)) +{ + usb_init_urb(urb); + urb->transfer_buffer = buffer; + urb->pipe = usb_sndintpipe(rt->chip->dev, COMM_EP); + urb->complete = handler; + urb->context = context; + urb->interval = 1; + urb->dev = rt->chip->dev; +} + +static void usb6fire_comm_receiver_handler(struct urb *urb) +{ + struct comm_runtime *rt = urb->context; + struct midi_runtime *midi_rt = rt->chip->midi; + + if (!urb->status) { + if (rt->receiver_buffer[0] == 0x10) /* midi in event */ + if (midi_rt) + midi_rt->in_received(midi_rt, + rt->receiver_buffer + 2, + rt->receiver_buffer[1]); + } + + if (!rt->chip->shutdown) { + urb->status = 0; + urb->actual_length = 0; + if (usb_submit_urb(urb, GFP_ATOMIC) < 0) + dev_warn(&urb->dev->dev, + "comm data receiver aborted.\n"); + } +} + +static void usb6fire_comm_init_buffer(u8 *buffer, u8 id, u8 request, + u8 reg, u8 vl, u8 vh) +{ + buffer[0] = 0x01; + buffer[2] = request; + buffer[3] = id; + switch (request) { + case 0x02: + buffer[1] = 0x05; /* length (starting at buffer[2]) */ + buffer[4] = reg; + buffer[5] = vl; + buffer[6] = vh; + break; + + case 0x12: + buffer[1] = 0x0b; /* length (starting at buffer[2]) */ + buffer[4] = 0x00; + buffer[5] = 0x18; + buffer[6] = 0x05; + buffer[7] = 0x00; + buffer[8] = 0x01; + buffer[9] = 0x00; + buffer[10] = 0x9e; + buffer[11] = reg; + buffer[12] = vl; + break; + + case 0x20: + case 0x21: + case 0x22: + buffer[1] = 0x04; + buffer[4] = reg; + buffer[5] = vl; + break; + } +} + +static int usb6fire_comm_send_buffer(u8 *buffer, struct usb_device *dev) +{ + int ret; + int actual_len; + + ret = usb_interrupt_msg(dev, usb_sndintpipe(dev, COMM_EP), + buffer, buffer[1] + 2, &actual_len, 1000); + if (ret < 0) + return ret; + else if (actual_len != buffer[1] + 2) + return -EIO; + return 0; +} + +static int usb6fire_comm_write8(struct comm_runtime *rt, u8 request, + u8 reg, u8 value) +{ + u8 *buffer; + int ret; + + /* 13: maximum length of message */ + buffer = kmalloc(13, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + usb6fire_comm_init_buffer(buffer, 0x00, request, reg, value, 0x00); + ret = usb6fire_comm_send_buffer(buffer, rt->chip->dev); + + kfree(buffer); + return ret; +} + +static int usb6fire_comm_write16(struct comm_runtime *rt, u8 request, + u8 reg, u8 vl, u8 vh) +{ + u8 *buffer; + int ret; + + /* 13: maximum length of message */ + buffer = kmalloc(13, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + usb6fire_comm_init_buffer(buffer, 0x00, request, reg, vl, vh); + ret = usb6fire_comm_send_buffer(buffer, rt->chip->dev); + + kfree(buffer); + return ret; +} + +int usb6fire_comm_init(struct sfire_chip *chip) +{ + struct comm_runtime *rt = kzalloc(sizeof(struct comm_runtime), + GFP_KERNEL); + struct urb *urb; + int ret; + + if (!rt) + return -ENOMEM; + + rt->receiver_buffer = kzalloc(COMM_RECEIVER_BUFSIZE, GFP_KERNEL); + if (!rt->receiver_buffer) { + kfree(rt); + return -ENOMEM; + } + + urb = &rt->receiver; + rt->serial = 1; + rt->chip = chip; + usb_init_urb(urb); + rt->init_urb = usb6fire_comm_init_urb; + rt->write8 = usb6fire_comm_write8; + rt->write16 = usb6fire_comm_write16; + + /* submit an urb that receives communication data from device */ + urb->transfer_buffer = rt->receiver_buffer; + urb->transfer_buffer_length = COMM_RECEIVER_BUFSIZE; + urb->pipe = usb_rcvintpipe(chip->dev, COMM_EP); + urb->dev = chip->dev; + urb->complete = usb6fire_comm_receiver_handler; + urb->context = rt; + urb->interval = 1; + ret = usb_submit_urb(urb, GFP_KERNEL); + if (ret < 0) { + kfree(rt->receiver_buffer); + kfree(rt); + dev_err(&chip->dev->dev, "cannot create comm data receiver."); + return ret; + } + chip->comm = rt; + return 0; +} + +void usb6fire_comm_abort(struct sfire_chip *chip) +{ + struct comm_runtime *rt = chip->comm; + + if (rt) + usb_poison_urb(&rt->receiver); +} + +void usb6fire_comm_destroy(struct sfire_chip *chip) +{ + struct comm_runtime *rt = chip->comm; + + kfree(rt->receiver_buffer); + kfree(rt); + chip->comm = NULL; +} diff --git a/sound/usb/6fire/comm.h b/sound/usb/6fire/comm.h new file mode 100644 index 000000000..2447d7ecf --- /dev/null +++ b/sound/usb/6fire/comm.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ +#ifndef USB6FIRE_COMM_H +#define USB6FIRE_COMM_H + +#include "common.h" + +enum /* settings for comm */ +{ + COMM_RECEIVER_BUFSIZE = 64, +}; + +struct comm_runtime { + struct sfire_chip *chip; + + struct urb receiver; + u8 *receiver_buffer; + + u8 serial; /* urb serial */ + + void (*init_urb)(struct comm_runtime *rt, struct urb *urb, u8 *buffer, + void *context, void(*handler)(struct urb *urb)); + /* writes control data to the device */ + int (*write8)(struct comm_runtime *rt, u8 request, u8 reg, u8 value); + int (*write16)(struct comm_runtime *rt, u8 request, u8 reg, + u8 vh, u8 vl); +}; + +int usb6fire_comm_init(struct sfire_chip *chip); +void usb6fire_comm_abort(struct sfire_chip *chip); +void usb6fire_comm_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_COMM_H */ + diff --git a/sound/usb/6fire/common.h b/sound/usb/6fire/common.h new file mode 100644 index 000000000..3a32c94b5 --- /dev/null +++ b/sound/usb/6fire/common.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#ifndef USB6FIRE_COMMON_H +#define USB6FIRE_COMMON_H + +#include <linux/slab.h> +#include <linux/usb.h> +#include <sound/core.h> + +#define PREFIX "6fire: " + +struct sfire_chip; +struct midi_runtime; +struct pcm_runtime; +struct control_runtime; +struct comm_runtime; +#endif /* USB6FIRE_COMMON_H */ + diff --git a/sound/usb/6fire/control.c b/sound/usb/6fire/control.c new file mode 100644 index 000000000..9bd8dcbb6 --- /dev/null +++ b/sound/usb/6fire/control.c @@ -0,0 +1,617 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Mixer control + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + * + * Thanks to: + * - Holger Ruckdeschel: he found out how to control individual channel + * volumes and introduced mute switch + */ + +#include <linux/interrupt.h> +#include <sound/control.h> +#include <sound/tlv.h> + +#include "control.h" +#include "comm.h" +#include "chip.h" + +static const char * const opt_coax_texts[2] = { "Optical", "Coax" }; +static const char * const line_phono_texts[2] = { "Line", "Phono" }; + +/* + * data that needs to be sent to device. sets up card internal stuff. + * values dumped from windows driver and filtered by trial'n'error. + */ +static const struct { + u8 type; + u8 reg; + u8 value; +} +init_data[] = { + { 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 }, + { 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 }, + { 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 }, + { 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 }, + { 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 }, + { 0x12, 0x0d, 0x38 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 }, + { 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 }, + { 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 }, + { 0 } /* TERMINATING ENTRY */ +}; + +static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 }; +/* values to write to soundcard register for all samplerates */ +static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01}; +static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00}; + +static DECLARE_TLV_DB_MINMAX(tlv_output, -9000, 0); +static DECLARE_TLV_DB_MINMAX(tlv_input, -1500, 1500); + +enum { + DIGITAL_THRU_ONLY_SAMPLERATE = 3 +}; + +static void usb6fire_control_output_vol_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + int i; + + if (comm_rt) + for (i = 0; i < 6; i++) + if (!(rt->ovol_updated & (1 << i))) { + comm_rt->write8(comm_rt, 0x12, 0x0f + i, + 180 - rt->output_vol[i]); + rt->ovol_updated |= 1 << i; + } +} + +static void usb6fire_control_output_mute_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + + if (comm_rt) + comm_rt->write8(comm_rt, 0x12, 0x0e, ~rt->output_mute); +} + +static void usb6fire_control_input_vol_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + int i; + + if (comm_rt) + for (i = 0; i < 2; i++) + if (!(rt->ivol_updated & (1 << i))) { + comm_rt->write8(comm_rt, 0x12, 0x1c + i, + rt->input_vol[i] & 0x3f); + rt->ivol_updated |= 1 << i; + } +} + +static void usb6fire_control_line_phono_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + if (comm_rt) { + comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch); + comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch); + } +} + +static void usb6fire_control_opt_coax_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + if (comm_rt) { + comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch); + comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch); + } +} + +static int usb6fire_control_set_rate(struct control_runtime *rt, int rate) +{ + int ret; + struct usb_device *device = rt->chip->dev; + struct comm_runtime *comm_rt = rt->chip->comm; + + if (rate < 0 || rate >= CONTROL_N_RATES) + return -EINVAL; + + ret = usb_set_interface(device, 1, rates_altsetting[rate]); + if (ret < 0) + return ret; + + /* set soundcard clock */ + ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate], + rates_6fire_vh[rate]); + if (ret < 0) + return ret; + + return 0; +} + +static int usb6fire_control_set_channels( + struct control_runtime *rt, int n_analog_out, + int n_analog_in, bool spdif_out, bool spdif_in) +{ + int ret; + struct comm_runtime *comm_rt = rt->chip->comm; + + /* enable analog inputs and outputs + * (one bit per stereo-channel) */ + ret = comm_rt->write16(comm_rt, 0x02, 0x02, + (1 << (n_analog_out / 2)) - 1, + (1 << (n_analog_in / 2)) - 1); + if (ret < 0) + return ret; + + /* disable digital inputs and outputs */ + /* TODO: use spdif_x to enable/disable digital channels */ + ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00); + if (ret < 0) + return ret; + + return 0; +} + +static int usb6fire_control_streaming_update(struct control_runtime *rt) +{ + struct comm_runtime *comm_rt = rt->chip->comm; + + if (comm_rt) { + if (!rt->usb_streaming && rt->digital_thru_switch) + usb6fire_control_set_rate(rt, + DIGITAL_THRU_ONLY_SAMPLERATE); + return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, + (rt->usb_streaming ? 0x01 : 0x00) | + (rt->digital_thru_switch ? 0x08 : 0x00)); + } + return -EINVAL; +} + +static int usb6fire_control_output_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 180; + return 0; +} + +static int usb6fire_control_output_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + int changed = 0; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + if (rt->output_vol[ch] != ucontrol->value.integer.value[0]) { + rt->output_vol[ch] = ucontrol->value.integer.value[0]; + rt->ovol_updated &= ~(1 << ch); + changed = 1; + } + if (rt->output_vol[ch + 1] != ucontrol->value.integer.value[1]) { + rt->output_vol[ch + 1] = ucontrol->value.integer.value[1]; + rt->ovol_updated &= ~(2 << ch); + changed = 1; + } + + if (changed) + usb6fire_control_output_vol_update(rt); + + return changed; +} + +static int usb6fire_control_output_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + ucontrol->value.integer.value[0] = rt->output_vol[ch]; + ucontrol->value.integer.value[1] = rt->output_vol[ch + 1]; + return 0; +} + +static int usb6fire_control_output_mute_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + u8 old = rt->output_mute; + u8 value = 0; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + rt->output_mute &= ~(3 << ch); + if (ucontrol->value.integer.value[0]) + value |= 1; + if (ucontrol->value.integer.value[1]) + value |= 2; + rt->output_mute |= value << ch; + + if (rt->output_mute != old) + usb6fire_control_output_mute_update(rt); + + return rt->output_mute != old; +} + +static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + unsigned int ch = kcontrol->private_value; + u8 value = rt->output_mute >> ch; + + if (ch > 4) { + dev_err(&rt->chip->dev->dev, + "Invalid channel in volume control."); + return -EINVAL; + } + + ucontrol->value.integer.value[0] = 1 & value; + value >>= 1; + ucontrol->value.integer.value[1] = 1 & value; + + return 0; +} + +static int usb6fire_control_input_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 30; + return 0; +} + +static int usb6fire_control_input_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (rt->input_vol[0] != ucontrol->value.integer.value[0]) { + rt->input_vol[0] = ucontrol->value.integer.value[0] - 15; + rt->ivol_updated &= ~(1 << 0); + changed = 1; + } + if (rt->input_vol[1] != ucontrol->value.integer.value[1]) { + rt->input_vol[1] = ucontrol->value.integer.value[1] - 15; + rt->ivol_updated &= ~(1 << 1); + changed = 1; + } + + if (changed) + usb6fire_control_input_vol_update(rt); + + return changed; +} + +static int usb6fire_control_input_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = rt->input_vol[0] + 15; + ucontrol->value.integer.value[1] = rt->input_vol[1] + 15; + + return 0; +} + +static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + return snd_ctl_enum_info(uinfo, 1, 2, line_phono_texts); +} + +static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + if (rt->line_phono_switch != ucontrol->value.integer.value[0]) { + rt->line_phono_switch = ucontrol->value.integer.value[0]; + usb6fire_control_line_phono_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.integer.value[0] = rt->line_phono_switch; + return 0; +} + +static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + return snd_ctl_enum_info(uinfo, 1, 2, opt_coax_texts); +} + +static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) { + rt->opt_coax_switch = ucontrol->value.enumerated.item[0]; + usb6fire_control_opt_coax_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.enumerated.item[0] = rt->opt_coax_switch; + return 0; +} + +static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + int changed = 0; + + if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) { + rt->digital_thru_switch = ucontrol->value.integer.value[0]; + usb6fire_control_streaming_update(rt); + changed = 1; + } + return changed; +} + +static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct control_runtime *rt = snd_kcontrol_chip(kcontrol); + ucontrol->value.integer.value[0] = rt->digital_thru_switch; + return 0; +} + +static const struct snd_kcontrol_new vol_elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Volume", + .index = 0, + .private_value = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_output_vol_info, + .get = usb6fire_control_output_vol_get, + .put = usb6fire_control_output_vol_put, + .tlv = { .p = tlv_output } + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Volume", + .index = 1, + .private_value = 2, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_output_vol_info, + .get = usb6fire_control_output_vol_get, + .put = usb6fire_control_output_vol_put, + .tlv = { .p = tlv_output } + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Volume", + .index = 2, + .private_value = 4, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_output_vol_info, + .get = usb6fire_control_output_vol_get, + .put = usb6fire_control_output_vol_put, + .tlv = { .p = tlv_output } + }, + {} +}; + +static const struct snd_kcontrol_new mute_elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 0, + .private_value = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 1, + .private_value = 2, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Playback Switch", + .index = 2, + .private_value = 4, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_stereo_info, + .get = usb6fire_control_output_mute_get, + .put = usb6fire_control_output_mute_put, + }, + {} +}; + +static const struct snd_kcontrol_new elements[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Line/Phono Capture Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = usb6fire_control_line_phono_info, + .get = usb6fire_control_line_phono_get, + .put = usb6fire_control_line_phono_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Opt/Coax Capture Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = usb6fire_control_opt_coax_info, + .get = usb6fire_control_opt_coax_get, + .put = usb6fire_control_opt_coax_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Digital Thru Playback Route", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ctl_boolean_mono_info, + .get = usb6fire_control_digital_thru_get, + .put = usb6fire_control_digital_thru_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Capture Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = usb6fire_control_input_vol_info, + .get = usb6fire_control_input_vol_get, + .put = usb6fire_control_input_vol_put, + .tlv = { .p = tlv_input } + }, + {} +}; + +static int usb6fire_control_add_virtual( + struct control_runtime *rt, + struct snd_card *card, + char *name, + const struct snd_kcontrol_new *elems) +{ + int ret; + int i; + struct snd_kcontrol *vmaster = + snd_ctl_make_virtual_master(name, tlv_output); + struct snd_kcontrol *control; + + if (!vmaster) + return -ENOMEM; + ret = snd_ctl_add(card, vmaster); + if (ret < 0) + return ret; + + i = 0; + while (elems[i].name) { + control = snd_ctl_new1(&elems[i], rt); + if (!control) + return -ENOMEM; + ret = snd_ctl_add(card, control); + if (ret < 0) + return ret; + ret = snd_ctl_add_follower(vmaster, control); + if (ret < 0) + return ret; + i++; + } + return 0; +} + +int usb6fire_control_init(struct sfire_chip *chip) +{ + int i; + int ret; + struct control_runtime *rt = kzalloc(sizeof(struct control_runtime), + GFP_KERNEL); + struct comm_runtime *comm_rt = chip->comm; + + if (!rt) + return -ENOMEM; + + rt->chip = chip; + rt->update_streaming = usb6fire_control_streaming_update; + rt->set_rate = usb6fire_control_set_rate; + rt->set_channels = usb6fire_control_set_channels; + + i = 0; + while (init_data[i].type) { + comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg, + init_data[i].value); + i++; + } + + usb6fire_control_opt_coax_update(rt); + usb6fire_control_line_phono_update(rt); + usb6fire_control_output_vol_update(rt); + usb6fire_control_output_mute_update(rt); + usb6fire_control_input_vol_update(rt); + usb6fire_control_streaming_update(rt); + + ret = usb6fire_control_add_virtual(rt, chip->card, + "Master Playback Volume", vol_elements); + if (ret) { + dev_err(&chip->dev->dev, "cannot add control.\n"); + kfree(rt); + return ret; + } + ret = usb6fire_control_add_virtual(rt, chip->card, + "Master Playback Switch", mute_elements); + if (ret) { + dev_err(&chip->dev->dev, "cannot add control.\n"); + kfree(rt); + return ret; + } + + i = 0; + while (elements[i].name) { + ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt)); + if (ret < 0) { + kfree(rt); + dev_err(&chip->dev->dev, "cannot add control.\n"); + return ret; + } + i++; + } + + chip->control = rt; + return 0; +} + +void usb6fire_control_abort(struct sfire_chip *chip) +{} + +void usb6fire_control_destroy(struct sfire_chip *chip) +{ + kfree(chip->control); + chip->control = NULL; +} diff --git a/sound/usb/6fire/control.h b/sound/usb/6fire/control.h new file mode 100644 index 000000000..ae57704d9 --- /dev/null +++ b/sound/usb/6fire/control.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#ifndef USB6FIRE_CONTROL_H +#define USB6FIRE_CONTROL_H + +#include "common.h" + +enum { + CONTROL_MAX_ELEMENTS = 32 +}; + +enum { + CONTROL_RATE_44KHZ, + CONTROL_RATE_48KHZ, + CONTROL_RATE_88KHZ, + CONTROL_RATE_96KHZ, + CONTROL_RATE_176KHZ, + CONTROL_RATE_192KHZ, + CONTROL_N_RATES +}; + +struct control_runtime { + int (*update_streaming)(struct control_runtime *rt); + int (*set_rate)(struct control_runtime *rt, int rate); + int (*set_channels)(struct control_runtime *rt, int n_analog_out, + int n_analog_in, bool spdif_out, bool spdif_in); + + struct sfire_chip *chip; + + struct snd_kcontrol *element[CONTROL_MAX_ELEMENTS]; + bool opt_coax_switch; + bool line_phono_switch; + bool digital_thru_switch; + bool usb_streaming; + u8 output_vol[6]; + u8 ovol_updated; + u8 output_mute; + s8 input_vol[2]; + u8 ivol_updated; +}; + +int usb6fire_control_init(struct sfire_chip *chip); +void usb6fire_control_abort(struct sfire_chip *chip); +void usb6fire_control_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_CONTROL_H */ + diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c new file mode 100644 index 000000000..c51abc54d --- /dev/null +++ b/sound/usb/6fire/firmware.c @@ -0,0 +1,405 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Firmware loader + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#include <linux/firmware.h> +#include <linux/module.h> +#include <linux/bitrev.h> +#include <linux/kernel.h> + +#include "firmware.h" +#include "chip.h" + +MODULE_FIRMWARE("6fire/dmx6firel2.ihx"); +MODULE_FIRMWARE("6fire/dmx6fireap.ihx"); +MODULE_FIRMWARE("6fire/dmx6firecf.bin"); + +enum { + FPGA_BUFSIZE = 512, FPGA_EP = 2 +}; + +/* + * wMaxPacketSize of pcm endpoints. + * keep synced with rates_in_packet_size and rates_out_packet_size in pcm.c + * fpp: frames per isopacket + * + * CAUTION: keep sizeof <= buffer[] in usb6fire_fw_init + */ +static const u8 ep_w_max_packet_size[] = { + 0xe4, 0x00, 0xe4, 0x00, /* alt 1: 228 EP2 and EP6 (7 fpp) */ + 0xa4, 0x01, 0xa4, 0x01, /* alt 2: 420 EP2 and EP6 (13 fpp)*/ + 0x94, 0x01, 0x5c, 0x02 /* alt 3: 404 EP2 and 604 EP6 (25 fpp) */ +}; + +static const u8 known_fw_versions[][2] = { + { 0x03, 0x01 } +}; + +struct ihex_record { + u16 address; + u8 len; + u8 data[256]; + char error; /* true if an error occurred parsing this record */ + + u8 max_len; /* maximum record length in whole ihex */ + + /* private */ + const char *txt_data; + unsigned int txt_length; + unsigned int txt_offset; /* current position in txt_data */ +}; + +static u8 usb6fire_fw_ihex_hex(const u8 *data, u8 *crc) +{ + u8 val = 0; + int hval; + + hval = hex_to_bin(data[0]); + if (hval >= 0) + val |= (hval << 4); + + hval = hex_to_bin(data[1]); + if (hval >= 0) + val |= hval; + + *crc += val; + return val; +} + +/* + * returns true if record is available, false otherwise. + * iff an error occurred, false will be returned and record->error will be true. + */ +static bool usb6fire_fw_ihex_next_record(struct ihex_record *record) +{ + u8 crc = 0; + u8 type; + int i; + + record->error = false; + + /* find begin of record (marked by a colon) */ + while (record->txt_offset < record->txt_length + && record->txt_data[record->txt_offset] != ':') + record->txt_offset++; + if (record->txt_offset == record->txt_length) + return false; + + /* number of characters needed for len, addr and type entries */ + record->txt_offset++; + if (record->txt_offset + 8 > record->txt_length) { + record->error = true; + return false; + } + + record->len = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + record->address = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc) << 8; + record->txt_offset += 2; + record->address |= usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + type = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + + /* number of characters needed for data and crc entries */ + if (record->txt_offset + 2 * (record->len + 1) > record->txt_length) { + record->error = true; + return false; + } + for (i = 0; i < record->len; i++) { + record->data[i] = usb6fire_fw_ihex_hex(record->txt_data + + record->txt_offset, &crc); + record->txt_offset += 2; + } + usb6fire_fw_ihex_hex(record->txt_data + record->txt_offset, &crc); + if (crc) { + record->error = true; + return false; + } + + if (type == 1 || !record->len) /* eof */ + return false; + else if (type == 0) + return true; + else { + record->error = true; + return false; + } +} + +static int usb6fire_fw_ihex_init(const struct firmware *fw, + struct ihex_record *record) +{ + record->txt_data = fw->data; + record->txt_length = fw->size; + record->txt_offset = 0; + record->max_len = 0; + /* read all records, if loop ends, record->error indicates, + * whether ihex is valid. */ + while (usb6fire_fw_ihex_next_record(record)) + record->max_len = max(record->len, record->max_len); + if (record->error) + return -EINVAL; + record->txt_offset = 0; + return 0; +} + +static int usb6fire_fw_ezusb_write(struct usb_device *device, + int type, int value, char *data, int len) +{ + return usb_control_msg_send(device, 0, type, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, 0, data, len, 1000, GFP_KERNEL); +} + +static int usb6fire_fw_ezusb_read(struct usb_device *device, + int type, int value, char *data, int len) +{ + return usb_control_msg_recv(device, 0, type, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + value, 0, data, len, 1000, GFP_KERNEL); +} + +static int usb6fire_fw_fpga_write(struct usb_device *device, + char *data, int len) +{ + int actual_len; + int ret; + + ret = usb_bulk_msg(device, usb_sndbulkpipe(device, FPGA_EP), data, len, + &actual_len, 1000); + if (ret < 0) + return ret; + else if (actual_len != len) + return -EIO; + return 0; +} + +static int usb6fire_fw_ezusb_upload( + struct usb_interface *intf, const char *fwname, + unsigned int postaddr, u8 *postdata, unsigned int postlen) +{ + int ret; + u8 data; + struct usb_device *device = interface_to_usbdev(intf); + const struct firmware *fw = NULL; + struct ihex_record *rec = kmalloc(sizeof(struct ihex_record), + GFP_KERNEL); + + if (!rec) + return -ENOMEM; + + ret = request_firmware(&fw, fwname, &device->dev); + if (ret < 0) { + kfree(rec); + dev_err(&intf->dev, + "error requesting ezusb firmware %s.\n", fwname); + return ret; + } + ret = usb6fire_fw_ihex_init(fw, rec); + if (ret < 0) { + kfree(rec); + release_firmware(fw); + dev_err(&intf->dev, + "error validating ezusb firmware %s.\n", fwname); + return ret; + } + /* upload firmware image */ + data = 0x01; /* stop ezusb cpu */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1); + if (ret) { + kfree(rec); + release_firmware(fw); + dev_err(&intf->dev, + "unable to upload ezusb firmware %s: begin message.\n", + fwname); + return ret; + } + + while (usb6fire_fw_ihex_next_record(rec)) { /* write firmware */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, rec->address, + rec->data, rec->len); + if (ret) { + kfree(rec); + release_firmware(fw); + dev_err(&intf->dev, + "unable to upload ezusb firmware %s: data urb.\n", + fwname); + return ret; + } + } + + release_firmware(fw); + kfree(rec); + if (postdata) { /* write data after firmware has been uploaded */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, postaddr, + postdata, postlen); + if (ret) { + dev_err(&intf->dev, + "unable to upload ezusb firmware %s: post urb.\n", + fwname); + return ret; + } + } + + data = 0x00; /* resume ezusb cpu */ + ret = usb6fire_fw_ezusb_write(device, 0xa0, 0xe600, &data, 1); + if (ret) { + dev_err(&intf->dev, + "unable to upload ezusb firmware %s: end message.\n", + fwname); + return ret; + } + return 0; +} + +static int usb6fire_fw_fpga_upload( + struct usb_interface *intf, const char *fwname) +{ + int ret; + int i; + struct usb_device *device = interface_to_usbdev(intf); + u8 *buffer = kmalloc(FPGA_BUFSIZE, GFP_KERNEL); + const char *c; + const char *end; + const struct firmware *fw; + + if (!buffer) + return -ENOMEM; + + ret = request_firmware(&fw, fwname, &device->dev); + if (ret < 0) { + dev_err(&intf->dev, "unable to get fpga firmware %s.\n", + fwname); + kfree(buffer); + return -EIO; + } + + c = fw->data; + end = fw->data + fw->size; + + ret = usb6fire_fw_ezusb_write(device, 8, 0, NULL, 0); + if (ret) { + kfree(buffer); + release_firmware(fw); + dev_err(&intf->dev, + "unable to upload fpga firmware: begin urb.\n"); + return ret; + } + + while (c != end) { + for (i = 0; c != end && i < FPGA_BUFSIZE; i++, c++) + buffer[i] = bitrev8((u8)*c); + + ret = usb6fire_fw_fpga_write(device, buffer, i); + if (ret < 0) { + release_firmware(fw); + kfree(buffer); + dev_err(&intf->dev, + "unable to upload fpga firmware: fw urb.\n"); + return ret; + } + } + release_firmware(fw); + kfree(buffer); + + ret = usb6fire_fw_ezusb_write(device, 9, 0, NULL, 0); + if (ret) { + dev_err(&intf->dev, + "unable to upload fpga firmware: end urb.\n"); + return ret; + } + return 0; +} + +/* check, if the firmware version the devices has currently loaded + * is known by this driver. 'version' needs to have 4 bytes version + * info data. */ +static int usb6fire_fw_check(struct usb_interface *intf, const u8 *version) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(known_fw_versions); i++) + if (!memcmp(version, known_fw_versions + i, 2)) + return 0; + + dev_err(&intf->dev, "invalid firmware version in device: %4ph. " + "please reconnect to power. if this failure " + "still happens, check your firmware installation.", + version); + return -EINVAL; +} + +int usb6fire_fw_init(struct usb_interface *intf) +{ + int i; + int ret; + struct usb_device *device = interface_to_usbdev(intf); + /* buffer: 8 receiving bytes from device and + * sizeof(EP_W_MAX_PACKET_SIZE) bytes for non-const copy */ + u8 buffer[12]; + + ret = usb6fire_fw_ezusb_read(device, 1, 0, buffer, 8); + if (ret) { + dev_err(&intf->dev, + "unable to receive device firmware state.\n"); + return ret; + } + if (buffer[0] != 0xeb || buffer[1] != 0xaa || buffer[2] != 0x55) { + dev_err(&intf->dev, + "unknown device firmware state received from device:"); + for (i = 0; i < 8; i++) + printk(KERN_CONT "%02x ", buffer[i]); + printk(KERN_CONT "\n"); + return -EIO; + } + /* do we need fpga loader ezusb firmware? */ + if (buffer[3] == 0x01) { + ret = usb6fire_fw_ezusb_upload(intf, + "6fire/dmx6firel2.ihx", 0, NULL, 0); + if (ret < 0) + return ret; + return FW_NOT_READY; + } + /* do we need fpga firmware and application ezusb firmware? */ + else if (buffer[3] == 0x02) { + ret = usb6fire_fw_check(intf, buffer + 4); + if (ret < 0) + return ret; + ret = usb6fire_fw_fpga_upload(intf, "6fire/dmx6firecf.bin"); + if (ret < 0) + return ret; + memcpy(buffer, ep_w_max_packet_size, + sizeof(ep_w_max_packet_size)); + ret = usb6fire_fw_ezusb_upload(intf, "6fire/dmx6fireap.ihx", + 0x0003, buffer, sizeof(ep_w_max_packet_size)); + if (ret < 0) + return ret; + return FW_NOT_READY; + } + /* all fw loaded? */ + else if (buffer[3] == 0x03) + return usb6fire_fw_check(intf, buffer + 4); + /* unknown data? */ + else { + dev_err(&intf->dev, + "unknown device firmware state received from device: "); + for (i = 0; i < 8; i++) + printk(KERN_CONT "%02x ", buffer[i]); + printk(KERN_CONT "\n"); + return -EIO; + } + return 0; +} + diff --git a/sound/usb/6fire/firmware.h b/sound/usb/6fire/firmware.h new file mode 100644 index 000000000..c29ed9cd2 --- /dev/null +++ b/sound/usb/6fire/firmware.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#ifndef USB6FIRE_FIRMWARE_H +#define USB6FIRE_FIRMWARE_H + +#include "common.h" + +enum /* firmware state of device */ +{ + FW_READY = 0, + FW_NOT_READY = 1 +}; + +int usb6fire_fw_init(struct usb_interface *intf); +#endif /* USB6FIRE_FIRMWARE_H */ + diff --git a/sound/usb/6fire/midi.c b/sound/usb/6fire/midi.c new file mode 100644 index 000000000..de2691d58 --- /dev/null +++ b/sound/usb/6fire/midi.c @@ -0,0 +1,214 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Rawmidi driver + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#include <sound/rawmidi.h> + +#include "midi.h" +#include "chip.h" +#include "comm.h" + +enum { + MIDI_BUFSIZE = 64 +}; + +static void usb6fire_midi_out_handler(struct urb *urb) +{ + struct midi_runtime *rt = urb->context; + int ret; + unsigned long flags; + + spin_lock_irqsave(&rt->out_lock, flags); + + if (rt->out) { + ret = snd_rawmidi_transmit(rt->out, rt->out_buffer + 4, + MIDI_BUFSIZE - 4); + if (ret > 0) { /* more data available, send next packet */ + rt->out_buffer[1] = ret + 2; + rt->out_buffer[3] = rt->out_serial++; + urb->transfer_buffer_length = ret + 4; + + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret < 0) + dev_err(&urb->dev->dev, + "midi out urb submit failed: %d\n", + ret); + } else /* no more data to transmit */ + rt->out = NULL; + } + spin_unlock_irqrestore(&rt->out_lock, flags); +} + +static void usb6fire_midi_in_received( + struct midi_runtime *rt, u8 *data, int length) +{ + unsigned long flags; + + spin_lock_irqsave(&rt->in_lock, flags); + if (rt->in) + snd_rawmidi_receive(rt->in, data, length); + spin_unlock_irqrestore(&rt->in_lock, flags); +} + +static int usb6fire_midi_out_open(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static int usb6fire_midi_out_close(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static void usb6fire_midi_out_trigger( + struct snd_rawmidi_substream *alsa_sub, int up) +{ + struct midi_runtime *rt = alsa_sub->rmidi->private_data; + struct urb *urb = &rt->out_urb; + __s8 ret; + unsigned long flags; + + spin_lock_irqsave(&rt->out_lock, flags); + if (up) { /* start transfer */ + if (rt->out) { /* we are already transmitting so just return */ + spin_unlock_irqrestore(&rt->out_lock, flags); + return; + } + + ret = snd_rawmidi_transmit(alsa_sub, rt->out_buffer + 4, + MIDI_BUFSIZE - 4); + if (ret > 0) { + rt->out_buffer[1] = ret + 2; + rt->out_buffer[3] = rt->out_serial++; + urb->transfer_buffer_length = ret + 4; + + ret = usb_submit_urb(urb, GFP_ATOMIC); + if (ret < 0) + dev_err(&urb->dev->dev, + "midi out urb submit failed: %d\n", + ret); + else + rt->out = alsa_sub; + } + } else if (rt->out == alsa_sub) + rt->out = NULL; + spin_unlock_irqrestore(&rt->out_lock, flags); +} + +static void usb6fire_midi_out_drain(struct snd_rawmidi_substream *alsa_sub) +{ + struct midi_runtime *rt = alsa_sub->rmidi->private_data; + int retry = 0; + + while (rt->out && retry++ < 100) + msleep(10); +} + +static int usb6fire_midi_in_open(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static int usb6fire_midi_in_close(struct snd_rawmidi_substream *alsa_sub) +{ + return 0; +} + +static void usb6fire_midi_in_trigger( + struct snd_rawmidi_substream *alsa_sub, int up) +{ + struct midi_runtime *rt = alsa_sub->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&rt->in_lock, flags); + if (up) + rt->in = alsa_sub; + else + rt->in = NULL; + spin_unlock_irqrestore(&rt->in_lock, flags); +} + +static const struct snd_rawmidi_ops out_ops = { + .open = usb6fire_midi_out_open, + .close = usb6fire_midi_out_close, + .trigger = usb6fire_midi_out_trigger, + .drain = usb6fire_midi_out_drain +}; + +static const struct snd_rawmidi_ops in_ops = { + .open = usb6fire_midi_in_open, + .close = usb6fire_midi_in_close, + .trigger = usb6fire_midi_in_trigger +}; + +int usb6fire_midi_init(struct sfire_chip *chip) +{ + int ret; + struct midi_runtime *rt = kzalloc(sizeof(struct midi_runtime), + GFP_KERNEL); + struct comm_runtime *comm_rt = chip->comm; + + if (!rt) + return -ENOMEM; + + rt->out_buffer = kzalloc(MIDI_BUFSIZE, GFP_KERNEL); + if (!rt->out_buffer) { + kfree(rt); + return -ENOMEM; + } + + rt->chip = chip; + rt->in_received = usb6fire_midi_in_received; + rt->out_buffer[0] = 0x80; /* 'send midi' command */ + rt->out_buffer[1] = 0x00; /* size of data */ + rt->out_buffer[2] = 0x00; /* always 0 */ + spin_lock_init(&rt->in_lock); + spin_lock_init(&rt->out_lock); + + comm_rt->init_urb(comm_rt, &rt->out_urb, rt->out_buffer, rt, + usb6fire_midi_out_handler); + + ret = snd_rawmidi_new(chip->card, "6FireUSB", 0, 1, 1, &rt->instance); + if (ret < 0) { + kfree(rt->out_buffer); + kfree(rt); + dev_err(&chip->dev->dev, "unable to create midi.\n"); + return ret; + } + rt->instance->private_data = rt; + strcpy(rt->instance->name, "DMX6FireUSB MIDI"); + rt->instance->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_OUTPUT, + &out_ops); + snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_INPUT, + &in_ops); + + chip->midi = rt; + return 0; +} + +void usb6fire_midi_abort(struct sfire_chip *chip) +{ + struct midi_runtime *rt = chip->midi; + + if (rt) + usb_poison_urb(&rt->out_urb); +} + +void usb6fire_midi_destroy(struct sfire_chip *chip) +{ + struct midi_runtime *rt = chip->midi; + + kfree(rt->out_buffer); + kfree(rt); + chip->midi = NULL; +} diff --git a/sound/usb/6fire/midi.h b/sound/usb/6fire/midi.h new file mode 100644 index 000000000..47640c845 --- /dev/null +++ b/sound/usb/6fire/midi.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#ifndef USB6FIRE_MIDI_H +#define USB6FIRE_MIDI_H + +#include "common.h" + +struct midi_runtime { + struct sfire_chip *chip; + struct snd_rawmidi *instance; + + struct snd_rawmidi_substream *in; + char in_active; + + spinlock_t in_lock; + spinlock_t out_lock; + struct snd_rawmidi_substream *out; + struct urb out_urb; + u8 out_serial; /* serial number of out packet */ + u8 *out_buffer; + int buffer_offset; + + void (*in_received)(struct midi_runtime *rt, u8 *data, int length); +}; + +int usb6fire_midi_init(struct sfire_chip *chip); +void usb6fire_midi_abort(struct sfire_chip *chip); +void usb6fire_midi_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_MIDI_H */ + diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c new file mode 100644 index 000000000..32c39d8bd --- /dev/null +++ b/sound/usb/6fire/pcm.c @@ -0,0 +1,683 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * PCM driver + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#include "pcm.h" +#include "chip.h" +#include "comm.h" +#include "control.h" + +enum { + OUT_N_CHANNELS = 6, IN_N_CHANNELS = 4 +}; + +/* keep next two synced with + * FW_EP_W_MAX_PACKET_SIZE[] and RATES_MAX_PACKET_SIZE + * and CONTROL_RATE_XXX in control.h */ +static const int rates_in_packet_size[] = { 228, 228, 420, 420, 404, 404 }; +static const int rates_out_packet_size[] = { 228, 228, 420, 420, 604, 604 }; +static const int rates[] = { 44100, 48000, 88200, 96000, 176400, 192000 }; +static const int rates_alsaid[] = { + SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_48000, + SNDRV_PCM_RATE_88200, SNDRV_PCM_RATE_96000, + SNDRV_PCM_RATE_176400, SNDRV_PCM_RATE_192000 }; + +enum { /* settings for pcm */ + OUT_EP = 6, IN_EP = 2, MAX_BUFSIZE = 128 * 1024 +}; + +enum { /* pcm streaming states */ + STREAM_DISABLED, /* no pcm streaming */ + STREAM_STARTING, /* pcm streaming requested, waiting to become ready */ + STREAM_RUNNING, /* pcm streaming running */ + STREAM_STOPPING +}; + +static const struct snd_pcm_hardware pcm_hw = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH, + + .formats = SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE, + + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | + SNDRV_PCM_RATE_192000, + + .rate_min = 44100, + .rate_max = 192000, + .channels_min = 1, + .channels_max = 0, /* set in pcm_open, depending on capture/playback */ + .buffer_bytes_max = MAX_BUFSIZE, + .period_bytes_min = PCM_N_PACKETS_PER_URB * (PCM_MAX_PACKET_SIZE - 4), + .period_bytes_max = MAX_BUFSIZE, + .periods_min = 2, + .periods_max = 1024 +}; + +static int usb6fire_pcm_set_rate(struct pcm_runtime *rt) +{ + int ret; + struct control_runtime *ctrl_rt = rt->chip->control; + + ctrl_rt->usb_streaming = false; + ret = ctrl_rt->update_streaming(ctrl_rt); + if (ret < 0) { + dev_err(&rt->chip->dev->dev, + "error stopping streaming while setting samplerate %d.\n", + rates[rt->rate]); + return ret; + } + + ret = ctrl_rt->set_rate(ctrl_rt, rt->rate); + if (ret < 0) { + dev_err(&rt->chip->dev->dev, + "error setting samplerate %d.\n", + rates[rt->rate]); + return ret; + } + + ret = ctrl_rt->set_channels(ctrl_rt, OUT_N_CHANNELS, IN_N_CHANNELS, + false, false); + if (ret < 0) { + dev_err(&rt->chip->dev->dev, + "error initializing channels while setting samplerate %d.\n", + rates[rt->rate]); + return ret; + } + + ctrl_rt->usb_streaming = true; + ret = ctrl_rt->update_streaming(ctrl_rt); + if (ret < 0) { + dev_err(&rt->chip->dev->dev, + "error starting streaming while setting samplerate %d.\n", + rates[rt->rate]); + return ret; + } + + rt->in_n_analog = IN_N_CHANNELS; + rt->out_n_analog = OUT_N_CHANNELS; + rt->in_packet_size = rates_in_packet_size[rt->rate]; + rt->out_packet_size = rates_out_packet_size[rt->rate]; + return 0; +} + +static struct pcm_substream *usb6fire_pcm_get_substream( + struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + + if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + return &rt->playback; + else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE) + return &rt->capture; + dev_err(&rt->chip->dev->dev, "error getting pcm substream slot.\n"); + return NULL; +} + +/* call with stream_mutex locked */ +static void usb6fire_pcm_stream_stop(struct pcm_runtime *rt) +{ + int i; + struct control_runtime *ctrl_rt = rt->chip->control; + + if (rt->stream_state != STREAM_DISABLED) { + + rt->stream_state = STREAM_STOPPING; + + for (i = 0; i < PCM_N_URBS; i++) { + usb_kill_urb(&rt->in_urbs[i].instance); + usb_kill_urb(&rt->out_urbs[i].instance); + } + ctrl_rt->usb_streaming = false; + ctrl_rt->update_streaming(ctrl_rt); + rt->stream_state = STREAM_DISABLED; + } +} + +/* call with stream_mutex locked */ +static int usb6fire_pcm_stream_start(struct pcm_runtime *rt) +{ + int ret; + int i; + int k; + struct usb_iso_packet_descriptor *packet; + + if (rt->stream_state == STREAM_DISABLED) { + /* submit our in urbs */ + rt->stream_wait_cond = false; + rt->stream_state = STREAM_STARTING; + for (i = 0; i < PCM_N_URBS; i++) { + for (k = 0; k < PCM_N_PACKETS_PER_URB; k++) { + packet = &rt->in_urbs[i].packets[k]; + packet->offset = k * rt->in_packet_size; + packet->length = rt->in_packet_size; + packet->actual_length = 0; + packet->status = 0; + } + ret = usb_submit_urb(&rt->in_urbs[i].instance, + GFP_ATOMIC); + if (ret) { + usb6fire_pcm_stream_stop(rt); + return ret; + } + } + + /* wait for first out urb to return (sent in urb handler) */ + wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond, + HZ); + if (rt->stream_wait_cond) + rt->stream_state = STREAM_RUNNING; + else { + usb6fire_pcm_stream_stop(rt); + return -EIO; + } + } + return 0; +} + +/* call with substream locked */ +static void usb6fire_pcm_capture(struct pcm_substream *sub, struct pcm_urb *urb) +{ + int i; + int frame; + int frame_count; + unsigned int total_length = 0; + struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance); + struct snd_pcm_runtime *alsa_rt = sub->instance->runtime; + u32 *src = NULL; + u32 *dest = (u32 *) (alsa_rt->dma_area + sub->dma_off + * (alsa_rt->frame_bits >> 3)); + u32 *dest_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size + * (alsa_rt->frame_bits >> 3)); + int bytes_per_frame = alsa_rt->channels << 2; + + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) { + /* at least 4 header bytes for valid packet. + * after that: 32 bits per sample for analog channels */ + if (urb->packets[i].actual_length > 4) + frame_count = (urb->packets[i].actual_length - 4) + / (rt->in_n_analog << 2); + else + frame_count = 0; + + if (alsa_rt->format == SNDRV_PCM_FORMAT_S24_LE) + src = (u32 *) (urb->buffer + total_length); + else if (alsa_rt->format == SNDRV_PCM_FORMAT_S32_LE) + src = (u32 *) (urb->buffer - 1 + total_length); + else + return; + src++; /* skip leading 4 bytes of every packet */ + total_length += urb->packets[i].length; + for (frame = 0; frame < frame_count; frame++) { + memcpy(dest, src, bytes_per_frame); + dest += alsa_rt->channels; + src += rt->in_n_analog; + sub->dma_off++; + sub->period_off++; + if (dest == dest_end) { + sub->dma_off = 0; + dest = (u32 *) alsa_rt->dma_area; + } + } + } +} + +/* call with substream locked */ +static void usb6fire_pcm_playback(struct pcm_substream *sub, + struct pcm_urb *urb) +{ + int i; + int frame; + int frame_count; + struct pcm_runtime *rt = snd_pcm_substream_chip(sub->instance); + struct snd_pcm_runtime *alsa_rt = sub->instance->runtime; + u32 *src = (u32 *) (alsa_rt->dma_area + sub->dma_off + * (alsa_rt->frame_bits >> 3)); + u32 *src_end = (u32 *) (alsa_rt->dma_area + alsa_rt->buffer_size + * (alsa_rt->frame_bits >> 3)); + u32 *dest; + int bytes_per_frame = alsa_rt->channels << 2; + + if (alsa_rt->format == SNDRV_PCM_FORMAT_S32_LE) + dest = (u32 *) (urb->buffer - 1); + else if (alsa_rt->format == SNDRV_PCM_FORMAT_S24_LE) + dest = (u32 *) (urb->buffer); + else { + dev_err(&rt->chip->dev->dev, "Unknown sample format."); + return; + } + + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) { + /* at least 4 header bytes for valid packet. + * after that: 32 bits per sample for analog channels */ + if (urb->packets[i].length > 4) + frame_count = (urb->packets[i].length - 4) + / (rt->out_n_analog << 2); + else + frame_count = 0; + dest++; /* skip leading 4 bytes of every frame */ + for (frame = 0; frame < frame_count; frame++) { + memcpy(dest, src, bytes_per_frame); + src += alsa_rt->channels; + dest += rt->out_n_analog; + sub->dma_off++; + sub->period_off++; + if (src == src_end) { + src = (u32 *) alsa_rt->dma_area; + sub->dma_off = 0; + } + } + } +} + +static void usb6fire_pcm_in_urb_handler(struct urb *usb_urb) +{ + struct pcm_urb *in_urb = usb_urb->context; + struct pcm_urb *out_urb = in_urb->peer; + struct pcm_runtime *rt = in_urb->chip->pcm; + struct pcm_substream *sub; + unsigned long flags; + int total_length = 0; + int frame_count; + int frame; + int channel; + int i; + u8 *dest; + + if (usb_urb->status || rt->panic || rt->stream_state == STREAM_STOPPING) + return; + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) + if (in_urb->packets[i].status) { + rt->panic = true; + return; + } + + if (rt->stream_state == STREAM_DISABLED) { + dev_err(&rt->chip->dev->dev, + "internal error: stream disabled in in-urb handler.\n"); + return; + } + + /* receive our capture data */ + sub = &rt->capture; + spin_lock_irqsave(&sub->lock, flags); + if (sub->active) { + usb6fire_pcm_capture(sub, in_urb); + if (sub->period_off >= sub->instance->runtime->period_size) { + sub->period_off %= sub->instance->runtime->period_size; + spin_unlock_irqrestore(&sub->lock, flags); + snd_pcm_period_elapsed(sub->instance); + } else + spin_unlock_irqrestore(&sub->lock, flags); + } else + spin_unlock_irqrestore(&sub->lock, flags); + + /* setup out urb structure */ + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) { + out_urb->packets[i].offset = total_length; + out_urb->packets[i].length = (in_urb->packets[i].actual_length + - 4) / (rt->in_n_analog << 2) + * (rt->out_n_analog << 2) + 4; + out_urb->packets[i].status = 0; + total_length += out_urb->packets[i].length; + } + memset(out_urb->buffer, 0, total_length); + + /* now send our playback data (if a free out urb was found) */ + sub = &rt->playback; + spin_lock_irqsave(&sub->lock, flags); + if (sub->active) { + usb6fire_pcm_playback(sub, out_urb); + if (sub->period_off >= sub->instance->runtime->period_size) { + sub->period_off %= sub->instance->runtime->period_size; + spin_unlock_irqrestore(&sub->lock, flags); + snd_pcm_period_elapsed(sub->instance); + } else + spin_unlock_irqrestore(&sub->lock, flags); + } else + spin_unlock_irqrestore(&sub->lock, flags); + + /* setup the 4th byte of each sample (0x40 for analog channels) */ + dest = out_urb->buffer; + for (i = 0; i < PCM_N_PACKETS_PER_URB; i++) + if (out_urb->packets[i].length >= 4) { + frame_count = (out_urb->packets[i].length - 4) + / (rt->out_n_analog << 2); + *(dest++) = 0xaa; + *(dest++) = 0xaa; + *(dest++) = frame_count; + *(dest++) = 0x00; + for (frame = 0; frame < frame_count; frame++) + for (channel = 0; + channel < rt->out_n_analog; + channel++) { + dest += 3; /* skip sample data */ + *(dest++) = 0x40; + } + } + usb_submit_urb(&out_urb->instance, GFP_ATOMIC); + usb_submit_urb(&in_urb->instance, GFP_ATOMIC); +} + +static void usb6fire_pcm_out_urb_handler(struct urb *usb_urb) +{ + struct pcm_urb *urb = usb_urb->context; + struct pcm_runtime *rt = urb->chip->pcm; + + if (rt->stream_state == STREAM_STARTING) { + rt->stream_wait_cond = true; + wake_up(&rt->stream_wait_queue); + } +} + +static int usb6fire_pcm_open(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = NULL; + struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime; + + if (rt->panic) + return -EPIPE; + + mutex_lock(&rt->stream_mutex); + alsa_rt->hw = pcm_hw; + + if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (rt->rate < ARRAY_SIZE(rates)) + alsa_rt->hw.rates = rates_alsaid[rt->rate]; + alsa_rt->hw.channels_max = OUT_N_CHANNELS; + sub = &rt->playback; + } else if (alsa_sub->stream == SNDRV_PCM_STREAM_CAPTURE) { + if (rt->rate < ARRAY_SIZE(rates)) + alsa_rt->hw.rates = rates_alsaid[rt->rate]; + alsa_rt->hw.channels_max = IN_N_CHANNELS; + sub = &rt->capture; + } + + if (!sub) { + mutex_unlock(&rt->stream_mutex); + dev_err(&rt->chip->dev->dev, "invalid stream type.\n"); + return -EINVAL; + } + + sub->instance = alsa_sub; + sub->active = false; + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int usb6fire_pcm_close(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + unsigned long flags; + + if (rt->panic) + return 0; + + mutex_lock(&rt->stream_mutex); + if (sub) { + /* deactivate substream */ + spin_lock_irqsave(&sub->lock, flags); + sub->instance = NULL; + sub->active = false; + spin_unlock_irqrestore(&sub->lock, flags); + + /* all substreams closed? if so, stop streaming */ + if (!rt->playback.instance && !rt->capture.instance) { + usb6fire_pcm_stream_stop(rt); + rt->rate = ARRAY_SIZE(rates); + } + } + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int usb6fire_pcm_prepare(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime; + int ret; + + if (rt->panic) + return -EPIPE; + if (!sub) + return -ENODEV; + + mutex_lock(&rt->stream_mutex); + sub->dma_off = 0; + sub->period_off = 0; + + if (rt->stream_state == STREAM_DISABLED) { + for (rt->rate = 0; rt->rate < ARRAY_SIZE(rates); rt->rate++) + if (alsa_rt->rate == rates[rt->rate]) + break; + if (rt->rate == ARRAY_SIZE(rates)) { + mutex_unlock(&rt->stream_mutex); + dev_err(&rt->chip->dev->dev, + "invalid rate %d in prepare.\n", + alsa_rt->rate); + return -EINVAL; + } + + ret = usb6fire_pcm_set_rate(rt); + if (ret) { + mutex_unlock(&rt->stream_mutex); + return ret; + } + ret = usb6fire_pcm_stream_start(rt); + if (ret) { + mutex_unlock(&rt->stream_mutex); + dev_err(&rt->chip->dev->dev, + "could not start pcm stream.\n"); + return ret; + } + } + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int usb6fire_pcm_trigger(struct snd_pcm_substream *alsa_sub, int cmd) +{ + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + unsigned long flags; + + if (rt->panic) + return -EPIPE; + if (!sub) + return -ENODEV; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + spin_lock_irqsave(&sub->lock, flags); + sub->active = true; + spin_unlock_irqrestore(&sub->lock, flags); + return 0; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + spin_lock_irqsave(&sub->lock, flags); + sub->active = false; + spin_unlock_irqrestore(&sub->lock, flags); + return 0; + + default: + return -EINVAL; + } +} + +static snd_pcm_uframes_t usb6fire_pcm_pointer( + struct snd_pcm_substream *alsa_sub) +{ + struct pcm_substream *sub = usb6fire_pcm_get_substream(alsa_sub); + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + unsigned long flags; + snd_pcm_uframes_t ret; + + if (rt->panic || !sub) + return SNDRV_PCM_POS_XRUN; + + spin_lock_irqsave(&sub->lock, flags); + ret = sub->dma_off; + spin_unlock_irqrestore(&sub->lock, flags); + return ret; +} + +static const struct snd_pcm_ops pcm_ops = { + .open = usb6fire_pcm_open, + .close = usb6fire_pcm_close, + .prepare = usb6fire_pcm_prepare, + .trigger = usb6fire_pcm_trigger, + .pointer = usb6fire_pcm_pointer, +}; + +static void usb6fire_pcm_init_urb(struct pcm_urb *urb, + struct sfire_chip *chip, bool in, int ep, + void (*handler)(struct urb *)) +{ + urb->chip = chip; + usb_init_urb(&urb->instance); + urb->instance.transfer_buffer = urb->buffer; + urb->instance.transfer_buffer_length = + PCM_N_PACKETS_PER_URB * PCM_MAX_PACKET_SIZE; + urb->instance.dev = chip->dev; + urb->instance.pipe = in ? usb_rcvisocpipe(chip->dev, ep) + : usb_sndisocpipe(chip->dev, ep); + urb->instance.interval = 1; + urb->instance.complete = handler; + urb->instance.context = urb; + urb->instance.number_of_packets = PCM_N_PACKETS_PER_URB; +} + +static int usb6fire_pcm_buffers_init(struct pcm_runtime *rt) +{ + int i; + + for (i = 0; i < PCM_N_URBS; i++) { + rt->out_urbs[i].buffer = kcalloc(PCM_MAX_PACKET_SIZE, + PCM_N_PACKETS_PER_URB, + GFP_KERNEL); + if (!rt->out_urbs[i].buffer) + return -ENOMEM; + rt->in_urbs[i].buffer = kcalloc(PCM_MAX_PACKET_SIZE, + PCM_N_PACKETS_PER_URB, + GFP_KERNEL); + if (!rt->in_urbs[i].buffer) + return -ENOMEM; + } + return 0; +} + +static void usb6fire_pcm_buffers_destroy(struct pcm_runtime *rt) +{ + int i; + + for (i = 0; i < PCM_N_URBS; i++) { + kfree(rt->out_urbs[i].buffer); + kfree(rt->in_urbs[i].buffer); + } +} + +int usb6fire_pcm_init(struct sfire_chip *chip) +{ + int i; + int ret; + struct snd_pcm *pcm; + struct pcm_runtime *rt = + kzalloc(sizeof(struct pcm_runtime), GFP_KERNEL); + + if (!rt) + return -ENOMEM; + + ret = usb6fire_pcm_buffers_init(rt); + if (ret) { + usb6fire_pcm_buffers_destroy(rt); + kfree(rt); + return ret; + } + + rt->chip = chip; + rt->stream_state = STREAM_DISABLED; + rt->rate = ARRAY_SIZE(rates); + init_waitqueue_head(&rt->stream_wait_queue); + mutex_init(&rt->stream_mutex); + + spin_lock_init(&rt->playback.lock); + spin_lock_init(&rt->capture.lock); + + for (i = 0; i < PCM_N_URBS; i++) { + usb6fire_pcm_init_urb(&rt->in_urbs[i], chip, true, IN_EP, + usb6fire_pcm_in_urb_handler); + usb6fire_pcm_init_urb(&rt->out_urbs[i], chip, false, OUT_EP, + usb6fire_pcm_out_urb_handler); + + rt->in_urbs[i].peer = &rt->out_urbs[i]; + rt->out_urbs[i].peer = &rt->in_urbs[i]; + } + + ret = snd_pcm_new(chip->card, "DMX6FireUSB", 0, 1, 1, &pcm); + if (ret < 0) { + usb6fire_pcm_buffers_destroy(rt); + kfree(rt); + dev_err(&chip->dev->dev, "cannot create pcm instance.\n"); + return ret; + } + + pcm->private_data = rt; + strcpy(pcm->name, "DMX 6Fire USB"); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops); + snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0); + + rt->instance = pcm; + + chip->pcm = rt; + return 0; +} + +void usb6fire_pcm_abort(struct sfire_chip *chip) +{ + struct pcm_runtime *rt = chip->pcm; + int i; + + if (rt) { + rt->panic = true; + + if (rt->playback.instance) + snd_pcm_stop_xrun(rt->playback.instance); + + if (rt->capture.instance) + snd_pcm_stop_xrun(rt->capture.instance); + + for (i = 0; i < PCM_N_URBS; i++) { + usb_poison_urb(&rt->in_urbs[i].instance); + usb_poison_urb(&rt->out_urbs[i].instance); + } + + } +} + +void usb6fire_pcm_destroy(struct sfire_chip *chip) +{ + struct pcm_runtime *rt = chip->pcm; + + usb6fire_pcm_buffers_destroy(rt); + kfree(rt); + chip->pcm = NULL; +} diff --git a/sound/usb/6fire/pcm.h b/sound/usb/6fire/pcm.h new file mode 100644 index 000000000..5a092dfd6 --- /dev/null +++ b/sound/usb/6fire/pcm.h @@ -0,0 +1,71 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for TerraTec DMX 6Fire USB + * + * Author: Torsten Schenk <torsten.schenk@zoho.com> + * Created: Jan 01, 2011 + * Copyright: (C) Torsten Schenk + */ + +#ifndef USB6FIRE_PCM_H +#define USB6FIRE_PCM_H + +#include <sound/pcm.h> +#include <linux/mutex.h> + +#include "common.h" + +enum /* settings for pcm */ +{ + /* maximum of EP_W_MAX_PACKET_SIZE[] (see firmware.c) */ + PCM_N_URBS = 16, PCM_N_PACKETS_PER_URB = 8, PCM_MAX_PACKET_SIZE = 604 +}; + +struct pcm_urb { + struct sfire_chip *chip; + + /* BEGIN DO NOT SEPARATE */ + struct urb instance; + struct usb_iso_packet_descriptor packets[PCM_N_PACKETS_PER_URB]; + /* END DO NOT SEPARATE */ + u8 *buffer; + + struct pcm_urb *peer; +}; + +struct pcm_substream { + spinlock_t lock; + struct snd_pcm_substream *instance; + + bool active; + + snd_pcm_uframes_t dma_off; /* current position in alsa dma_area */ + snd_pcm_uframes_t period_off; /* current position in current period */ +}; + +struct pcm_runtime { + struct sfire_chip *chip; + struct snd_pcm *instance; + + struct pcm_substream playback; + struct pcm_substream capture; + bool panic; /* if set driver won't do anymore pcm on device */ + + struct pcm_urb in_urbs[PCM_N_URBS]; + struct pcm_urb out_urbs[PCM_N_URBS]; + int in_packet_size; + int out_packet_size; + int in_n_analog; /* number of analog channels soundcard sends */ + int out_n_analog; /* number of analog channels soundcard receives */ + + struct mutex stream_mutex; + u8 stream_state; /* one of STREAM_XXX (pcm.c) */ + u8 rate; /* one of PCM_RATE_XXX */ + wait_queue_head_t stream_wait_queue; + bool stream_wait_cond; +}; + +int usb6fire_pcm_init(struct sfire_chip *chip); +void usb6fire_pcm_abort(struct sfire_chip *chip); +void usb6fire_pcm_destroy(struct sfire_chip *chip); +#endif /* USB6FIRE_PCM_H */ diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig new file mode 100644 index 000000000..059242f15 --- /dev/null +++ b/sound/usb/Kconfig @@ -0,0 +1,171 @@ +# SPDX-License-Identifier: GPL-2.0-only +# ALSA USB drivers + +menuconfig SND_USB + bool "USB sound devices" + depends on USB + default y + help + Support for sound devices connected via the USB bus. + +if SND_USB && USB + +config SND_USB_AUDIO + tristate "USB Audio/MIDI driver" + select SND_HWDEP + select SND_RAWMIDI + select SND_PCM + select BITREVERSE + select SND_USB_AUDIO_USE_MEDIA_CONTROLLER if MEDIA_CONTROLLER && (MEDIA_SUPPORT=y || MEDIA_SUPPORT=SND_USB_AUDIO) + help + Say Y here to include support for USB audio and USB MIDI + devices. + + To compile this driver as a module, choose M here: the module + will be called snd-usb-audio. + +config SND_USB_AUDIO_USE_MEDIA_CONTROLLER + bool + +config SND_USB_UA101 + tristate "Edirol UA-101/UA-1000 driver" + select SND_PCM + select SND_RAWMIDI + help + Say Y here to include support for the Edirol UA-101 and UA-1000 + audio/MIDI interfaces. + + To compile this driver as a module, choose M here: the module + will be called snd-ua101. + +config SND_USB_USX2Y + tristate "Tascam US-122, US-224 and US-428 USB driver" + depends on X86 || PPC || ALPHA + select SND_HWDEP + select SND_RAWMIDI + select SND_PCM + help + Say Y here to include support for Tascam USB Audio/MIDI + interfaces or controllers US-122, US-224 and US-428. + + To compile this driver as a module, choose M here: the module + will be called snd-usb-usx2y. + +config SND_USB_CAIAQ + tristate "Native Instruments USB audio devices" + select SND_HWDEP + select SND_RAWMIDI + select SND_PCM + help + Say Y here to include support for caiaq USB audio interfaces, + namely: + + * Native Instruments RigKontrol2 + * Native Instruments RigKontrol3 + * Native Instruments Kore Controller + * Native Instruments Kore Controller 2 + * Native Instruments Audio Kontrol 1 + * Native Instruments Audio 2 DJ + * Native Instruments Audio 4 DJ + * Native Instruments Audio 8 DJ + * Native Instruments Traktor Audio 2 + * Native Instruments Guitar Rig Session I/O + * Native Instruments Guitar Rig mobile + * Native Instruments Traktor Kontrol X1 + * Native Instruments Traktor Kontrol S4 + * Native Instruments Maschine Controller + + To compile this driver as a module, choose M here: the module + will be called snd-usb-caiaq. + +config SND_USB_CAIAQ_INPUT + bool "enable input device for controllers" + depends on SND_USB_CAIAQ + depends on INPUT=y || INPUT=SND_USB_CAIAQ + help + Say Y here to support input controllers like buttons, knobs, + alpha dials and analog pedals on the following products: + + * Native Instruments RigKontrol2 + * Native Instruments RigKontrol3 + * Native Instruments Kore Controller + * Native Instruments Kore Controller 2 + * Native Instruments Audio Kontrol 1 + * Native Instruments Traktor Kontrol S4 + * Native Instruments Maschine Controller + +config SND_USB_US122L + tristate "Tascam US-122L USB driver" + depends on X86 || COMPILE_TEST + select SND_HWDEP + select SND_RAWMIDI + help + Say Y here to include support for Tascam US-122L USB Audio/MIDI + interfaces. + + To compile this driver as a module, choose M here: the module + will be called snd-usb-us122l. + +config SND_USB_6FIRE + tristate "TerraTec DMX 6Fire USB" + select FW_LOADER + select BITREVERSE + select SND_RAWMIDI + select SND_PCM + select SND_VMASTER + help + Say Y here to include support for TerraTec 6fire DMX USB interface. + + You will need firmware files in order to be able to use the device + after it has been coldstarted. An install script for the firmware + and further help can be found at + http://sixfireusb.sourceforge.net + +config SND_USB_HIFACE + tristate "M2Tech hiFace USB-SPDIF driver" + select SND_PCM + help + Select this option to include support for M2Tech hiFace USB-SPDIF + interface. + + This driver supports the original M2Tech hiFace and some other + compatible devices. The supported products are: + + * M2Tech Young + * M2Tech hiFace + * M2Tech North Star + * M2Tech W4S Young + * M2Tech Corrson + * M2Tech AUDIA + * M2Tech SL Audio + * M2Tech Empirical + * M2Tech Rockna + * M2Tech Pathos + * M2Tech Metronome + * M2Tech CAD + * M2Tech Audio Esclusive + * M2Tech Rotel + * M2Tech Eeaudio + * The Chord Company CHORD + * AVA Group A/S Vitus + + To compile this driver as a module, choose M here: the module + will be called snd-usb-hiface. + +config SND_BCD2000 + tristate "Behringer BCD2000 MIDI driver" + select SND_RAWMIDI + help + Say Y here to include MIDI support for the Behringer BCD2000 DJ + controller. + + Audio support is still work-in-progress at + https://github.com/anyc/snd-usb-bcd2000 + + To compile this driver as a module, choose M here: the module + will be called snd-bcd2000. + +source "sound/usb/line6/Kconfig" + +endif # SND_USB + diff --git a/sound/usb/Makefile b/sound/usb/Makefile new file mode 100644 index 000000000..9ccb21a4f --- /dev/null +++ b/sound/usb/Makefile @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for ALSA +# + +snd-usb-audio-objs := card.o \ + clock.o \ + endpoint.o \ + format.o \ + helper.o \ + implicit.o \ + mixer.o \ + mixer_quirks.o \ + mixer_scarlett.o \ + mixer_scarlett_gen2.o \ + mixer_us16x08.o \ + mixer_s1810c.o \ + pcm.o \ + power.o \ + proc.o \ + quirks.o \ + stream.o \ + validate.o + +snd-usb-audio-$(CONFIG_SND_USB_AUDIO_USE_MEDIA_CONTROLLER) += media.o + +snd-usbmidi-lib-objs := midi.o + +# Toplevel Module Dependency +obj-$(CONFIG_SND_USB_AUDIO) += snd-usb-audio.o snd-usbmidi-lib.o + +obj-$(CONFIG_SND_USB_UA101) += snd-usbmidi-lib.o +obj-$(CONFIG_SND_USB_USX2Y) += snd-usbmidi-lib.o +obj-$(CONFIG_SND_USB_US122L) += snd-usbmidi-lib.o + +obj-$(CONFIG_SND) += misc/ usx2y/ caiaq/ 6fire/ hiface/ bcd2000/ +obj-$(CONFIG_SND_USB_LINE6) += line6/ diff --git a/sound/usb/bcd2000/Makefile b/sound/usb/bcd2000/Makefile new file mode 100644 index 000000000..e2d916e24 --- /dev/null +++ b/sound/usb/bcd2000/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only +snd-bcd2000-y := bcd2000.o + +obj-$(CONFIG_SND_BCD2000) += snd-bcd2000.o diff --git a/sound/usb/bcd2000/bcd2000.c b/sound/usb/bcd2000/bcd2000.c new file mode 100644 index 000000000..7aec0a95c --- /dev/null +++ b/sound/usb/bcd2000/bcd2000.c @@ -0,0 +1,460 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Behringer BCD2000 driver + * + * Copyright (C) 2014 Mario Kicherer (dev@kicherer.org) + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/bitmap.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/rawmidi.h> + +#define PREFIX "snd-bcd2000: " +#define BUFSIZE 64 + +static const struct usb_device_id id_table[] = { + { USB_DEVICE(0x1397, 0x00bd) }, + { }, +}; + +static const unsigned char device_cmd_prefix[] = {0x03, 0x00}; + +static const unsigned char bcd2000_init_sequence[] = { + 0x07, 0x00, 0x00, 0x00, 0x78, 0x48, 0x1c, 0x81, + 0xc4, 0x00, 0x00, 0x00, 0x5e, 0x53, 0x4a, 0xf7, + 0x18, 0xfa, 0x11, 0xff, 0x6c, 0xf3, 0x90, 0xff, + 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, + 0x18, 0xfa, 0x11, 0xff, 0x14, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xf2, 0x34, 0x4a, 0xf7, + 0x18, 0xfa, 0x11, 0xff +}; + +struct bcd2000 { + struct usb_device *dev; + struct snd_card *card; + struct usb_interface *intf; + int card_index; + + int midi_out_active; + struct snd_rawmidi *rmidi; + struct snd_rawmidi_substream *midi_receive_substream; + struct snd_rawmidi_substream *midi_out_substream; + + unsigned char midi_in_buf[BUFSIZE]; + unsigned char midi_out_buf[BUFSIZE]; + + struct urb *midi_out_urb; + struct urb *midi_in_urb; + + struct usb_anchor anchor; +}; + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; + +static DEFINE_MUTEX(devices_mutex); +static DECLARE_BITMAP(devices_used, SNDRV_CARDS); +static struct usb_driver bcd2000_driver; + +#ifdef CONFIG_SND_DEBUG +static void bcd2000_dump_buffer(const char *prefix, const char *buf, int len) +{ + print_hex_dump(KERN_DEBUG, prefix, + DUMP_PREFIX_NONE, 16, 1, + buf, len, false); +} +#else +static void bcd2000_dump_buffer(const char *prefix, const char *buf, int len) {} +#endif + +static int bcd2000_midi_input_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int bcd2000_midi_input_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +/* (de)register midi substream from client */ +static void bcd2000_midi_input_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + struct bcd2000 *bcd2k = substream->rmidi->private_data; + bcd2k->midi_receive_substream = up ? substream : NULL; +} + +static void bcd2000_midi_handle_input(struct bcd2000 *bcd2k, + const unsigned char *buf, unsigned int buf_len) +{ + unsigned int payload_length, tocopy; + struct snd_rawmidi_substream *midi_receive_substream; + + midi_receive_substream = READ_ONCE(bcd2k->midi_receive_substream); + if (!midi_receive_substream) + return; + + bcd2000_dump_buffer(PREFIX "received from device: ", buf, buf_len); + + if (buf_len < 2) + return; + + payload_length = buf[0]; + + /* ignore packets without payload */ + if (payload_length == 0) + return; + + tocopy = min(payload_length, buf_len-1); + + bcd2000_dump_buffer(PREFIX "sending to userspace: ", + &buf[1], tocopy); + + snd_rawmidi_receive(midi_receive_substream, + &buf[1], tocopy); +} + +static void bcd2000_midi_send(struct bcd2000 *bcd2k) +{ + int len, ret; + struct snd_rawmidi_substream *midi_out_substream; + + BUILD_BUG_ON(sizeof(device_cmd_prefix) >= BUFSIZE); + + midi_out_substream = READ_ONCE(bcd2k->midi_out_substream); + if (!midi_out_substream) + return; + + /* copy command prefix bytes */ + memcpy(bcd2k->midi_out_buf, device_cmd_prefix, + sizeof(device_cmd_prefix)); + + /* + * get MIDI packet and leave space for command prefix + * and payload length + */ + len = snd_rawmidi_transmit(midi_out_substream, + bcd2k->midi_out_buf + 3, BUFSIZE - 3); + + if (len < 0) + dev_err(&bcd2k->dev->dev, "%s: snd_rawmidi_transmit error %d\n", + __func__, len); + + if (len <= 0) + return; + + /* set payload length */ + bcd2k->midi_out_buf[2] = len; + bcd2k->midi_out_urb->transfer_buffer_length = BUFSIZE; + + bcd2000_dump_buffer(PREFIX "sending to device: ", + bcd2k->midi_out_buf, len+3); + + /* send packet to the BCD2000 */ + ret = usb_submit_urb(bcd2k->midi_out_urb, GFP_ATOMIC); + if (ret < 0) + dev_err(&bcd2k->dev->dev, PREFIX + "%s (%p): usb_submit_urb() failed, ret=%d, len=%d\n", + __func__, midi_out_substream, ret, len); + else + bcd2k->midi_out_active = 1; +} + +static int bcd2000_midi_output_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int bcd2000_midi_output_close(struct snd_rawmidi_substream *substream) +{ + struct bcd2000 *bcd2k = substream->rmidi->private_data; + + if (bcd2k->midi_out_active) { + usb_kill_urb(bcd2k->midi_out_urb); + bcd2k->midi_out_active = 0; + } + + return 0; +} + +/* (de)register midi substream from client */ +static void bcd2000_midi_output_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + struct bcd2000 *bcd2k = substream->rmidi->private_data; + + if (up) { + bcd2k->midi_out_substream = substream; + /* check if there is data userspace wants to send */ + if (!bcd2k->midi_out_active) + bcd2000_midi_send(bcd2k); + } else { + bcd2k->midi_out_substream = NULL; + } +} + +static void bcd2000_output_complete(struct urb *urb) +{ + struct bcd2000 *bcd2k = urb->context; + + bcd2k->midi_out_active = 0; + + if (urb->status) + dev_warn(&urb->dev->dev, + PREFIX "output urb->status: %d\n", urb->status); + + if (urb->status == -ESHUTDOWN) + return; + + /* check if there is more data userspace wants to send */ + bcd2000_midi_send(bcd2k); +} + +static void bcd2000_input_complete(struct urb *urb) +{ + int ret; + struct bcd2000 *bcd2k = urb->context; + + if (urb->status) + dev_warn(&urb->dev->dev, + PREFIX "input urb->status: %i\n", urb->status); + + if (!bcd2k || urb->status == -ESHUTDOWN) + return; + + if (urb->actual_length > 0) + bcd2000_midi_handle_input(bcd2k, urb->transfer_buffer, + urb->actual_length); + + /* return URB to device */ + ret = usb_submit_urb(bcd2k->midi_in_urb, GFP_ATOMIC); + if (ret < 0) + dev_err(&bcd2k->dev->dev, PREFIX + "%s: usb_submit_urb() failed, ret=%d\n", + __func__, ret); +} + +static const struct snd_rawmidi_ops bcd2000_midi_output = { + .open = bcd2000_midi_output_open, + .close = bcd2000_midi_output_close, + .trigger = bcd2000_midi_output_trigger, +}; + +static const struct snd_rawmidi_ops bcd2000_midi_input = { + .open = bcd2000_midi_input_open, + .close = bcd2000_midi_input_close, + .trigger = bcd2000_midi_input_trigger, +}; + +static void bcd2000_init_device(struct bcd2000 *bcd2k) +{ + int ret; + + init_usb_anchor(&bcd2k->anchor); + usb_anchor_urb(bcd2k->midi_out_urb, &bcd2k->anchor); + usb_anchor_urb(bcd2k->midi_in_urb, &bcd2k->anchor); + + /* copy init sequence into buffer */ + memcpy(bcd2k->midi_out_buf, bcd2000_init_sequence, 52); + bcd2k->midi_out_urb->transfer_buffer_length = 52; + + /* submit sequence */ + ret = usb_submit_urb(bcd2k->midi_out_urb, GFP_KERNEL); + if (ret < 0) + dev_err(&bcd2k->dev->dev, PREFIX + "%s: usb_submit_urb() out failed, ret=%d: ", + __func__, ret); + else + bcd2k->midi_out_active = 1; + + /* pass URB to device to enable button and controller events */ + ret = usb_submit_urb(bcd2k->midi_in_urb, GFP_KERNEL); + if (ret < 0) + dev_err(&bcd2k->dev->dev, PREFIX + "%s: usb_submit_urb() in failed, ret=%d: ", + __func__, ret); + + /* ensure initialization is finished */ + usb_wait_anchor_empty_timeout(&bcd2k->anchor, 1000); +} + +static int bcd2000_init_midi(struct bcd2000 *bcd2k) +{ + int ret; + struct snd_rawmidi *rmidi; + + ret = snd_rawmidi_new(bcd2k->card, bcd2k->card->shortname, 0, + 1, /* output */ + 1, /* input */ + &rmidi); + + if (ret < 0) + return ret; + + strscpy(rmidi->name, bcd2k->card->shortname, sizeof(rmidi->name)); + + rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->private_data = bcd2k; + + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &bcd2000_midi_output); + + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &bcd2000_midi_input); + + bcd2k->rmidi = rmidi; + + bcd2k->midi_in_urb = usb_alloc_urb(0, GFP_KERNEL); + bcd2k->midi_out_urb = usb_alloc_urb(0, GFP_KERNEL); + + if (!bcd2k->midi_in_urb || !bcd2k->midi_out_urb) { + dev_err(&bcd2k->dev->dev, PREFIX "usb_alloc_urb failed\n"); + return -ENOMEM; + } + + usb_fill_int_urb(bcd2k->midi_in_urb, bcd2k->dev, + usb_rcvintpipe(bcd2k->dev, 0x81), + bcd2k->midi_in_buf, BUFSIZE, + bcd2000_input_complete, bcd2k, 1); + + usb_fill_int_urb(bcd2k->midi_out_urb, bcd2k->dev, + usb_sndintpipe(bcd2k->dev, 0x1), + bcd2k->midi_out_buf, BUFSIZE, + bcd2000_output_complete, bcd2k, 1); + + /* sanity checks of EPs before actually submitting */ + if (usb_urb_ep_type_check(bcd2k->midi_in_urb) || + usb_urb_ep_type_check(bcd2k->midi_out_urb)) { + dev_err(&bcd2k->dev->dev, "invalid MIDI EP\n"); + return -EINVAL; + } + + bcd2000_init_device(bcd2k); + + return 0; +} + +static void bcd2000_free_usb_related_resources(struct bcd2000 *bcd2k, + struct usb_interface *interface) +{ + usb_kill_urb(bcd2k->midi_out_urb); + usb_kill_urb(bcd2k->midi_in_urb); + + usb_free_urb(bcd2k->midi_out_urb); + usb_free_urb(bcd2k->midi_in_urb); + + if (bcd2k->intf) { + usb_set_intfdata(bcd2k->intf, NULL); + bcd2k->intf = NULL; + } +} + +static int bcd2000_probe(struct usb_interface *interface, + const struct usb_device_id *usb_id) +{ + struct snd_card *card; + struct bcd2000 *bcd2k; + unsigned int card_index; + char usb_path[32]; + int err; + + mutex_lock(&devices_mutex); + + for (card_index = 0; card_index < SNDRV_CARDS; ++card_index) + if (!test_bit(card_index, devices_used)) + break; + + if (card_index >= SNDRV_CARDS) { + mutex_unlock(&devices_mutex); + return -ENOENT; + } + + err = snd_card_new(&interface->dev, index[card_index], id[card_index], + THIS_MODULE, sizeof(*bcd2k), &card); + if (err < 0) { + mutex_unlock(&devices_mutex); + return err; + } + + bcd2k = card->private_data; + bcd2k->dev = interface_to_usbdev(interface); + bcd2k->card = card; + bcd2k->card_index = card_index; + bcd2k->intf = interface; + + snd_card_set_dev(card, &interface->dev); + + strncpy(card->driver, "snd-bcd2000", sizeof(card->driver)); + strncpy(card->shortname, "BCD2000", sizeof(card->shortname)); + usb_make_path(bcd2k->dev, usb_path, sizeof(usb_path)); + snprintf(bcd2k->card->longname, sizeof(bcd2k->card->longname), + "Behringer BCD2000 at %s", + usb_path); + + err = bcd2000_init_midi(bcd2k); + if (err < 0) + goto probe_error; + + err = snd_card_register(card); + if (err < 0) + goto probe_error; + + usb_set_intfdata(interface, bcd2k); + set_bit(card_index, devices_used); + + mutex_unlock(&devices_mutex); + return 0; + +probe_error: + dev_info(&bcd2k->dev->dev, PREFIX "error during probing"); + bcd2000_free_usb_related_resources(bcd2k, interface); + snd_card_free(card); + mutex_unlock(&devices_mutex); + return err; +} + +static void bcd2000_disconnect(struct usb_interface *interface) +{ + struct bcd2000 *bcd2k = usb_get_intfdata(interface); + + if (!bcd2k) + return; + + mutex_lock(&devices_mutex); + + /* make sure that userspace cannot create new requests */ + snd_card_disconnect(bcd2k->card); + + bcd2000_free_usb_related_resources(bcd2k, interface); + + clear_bit(bcd2k->card_index, devices_used); + + snd_card_free_when_closed(bcd2k->card); + + mutex_unlock(&devices_mutex); +} + +static struct usb_driver bcd2000_driver = { + .name = "snd-bcd2000", + .probe = bcd2000_probe, + .disconnect = bcd2000_disconnect, + .id_table = id_table, +}; + +module_usb_driver(bcd2000_driver); + +MODULE_DEVICE_TABLE(usb, id_table); +MODULE_AUTHOR("Mario Kicherer, dev@kicherer.org"); +MODULE_DESCRIPTION("Behringer BCD2000 driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/usb/caiaq/Makefile b/sound/usb/caiaq/Makefile new file mode 100644 index 000000000..9a99c17a2 --- /dev/null +++ b/sound/usb/caiaq/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0-only +snd-usb-caiaq-y := device.o audio.o midi.o control.o +snd-usb-caiaq-$(CONFIG_SND_USB_CAIAQ_INPUT) += input.o + +obj-$(CONFIG_SND_USB_CAIAQ) += snd-usb-caiaq.o diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c new file mode 100644 index 000000000..498175365 --- /dev/null +++ b/sound/usb/caiaq/audio.c @@ -0,0 +1,882 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2006-2008 Daniel Mack, Karsten Wiese +*/ + +#include <linux/device.h> +#include <linux/spinlock.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/usb.h> +#include <sound/core.h> +#include <sound/pcm.h> + +#include "device.h" +#include "audio.h" + +#define N_URBS 32 +#define CLOCK_DRIFT_TOLERANCE 5 +#define FRAMES_PER_URB 8 +#define BYTES_PER_FRAME 512 +#define CHANNELS_PER_STREAM 2 +#define BYTES_PER_SAMPLE 3 +#define BYTES_PER_SAMPLE_USB 4 +#define MAX_BUFFER_SIZE (128*1024) +#define MAX_ENDPOINT_SIZE 512 + +#define ENDPOINT_CAPTURE 2 +#define ENDPOINT_PLAYBACK 6 + +#define MAKE_CHECKBYTE(cdev,stream,i) \ + (stream << 1) | (~(i / (cdev->n_streams * BYTES_PER_SAMPLE_USB)) & 1) + +static const struct snd_pcm_hardware snd_usb_caiaq_pcm_hardware = { + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER), + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .rates = (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000), + .rate_min = 44100, + .rate_max = 0, /* will overwrite later */ + .channels_min = CHANNELS_PER_STREAM, + .channels_max = CHANNELS_PER_STREAM, + .buffer_bytes_max = MAX_BUFFER_SIZE, + .period_bytes_min = 128, + .period_bytes_max = MAX_BUFFER_SIZE, + .periods_min = 1, + .periods_max = 1024, +}; + +static void +activate_substream(struct snd_usb_caiaqdev *cdev, + struct snd_pcm_substream *sub) +{ + spin_lock(&cdev->spinlock); + + if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + cdev->sub_playback[sub->number] = sub; + else + cdev->sub_capture[sub->number] = sub; + + spin_unlock(&cdev->spinlock); +} + +static void +deactivate_substream(struct snd_usb_caiaqdev *cdev, + struct snd_pcm_substream *sub) +{ + unsigned long flags; + spin_lock_irqsave(&cdev->spinlock, flags); + + if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + cdev->sub_playback[sub->number] = NULL; + else + cdev->sub_capture[sub->number] = NULL; + + spin_unlock_irqrestore(&cdev->spinlock, flags); +} + +static int +all_substreams_zero(struct snd_pcm_substream **subs) +{ + int i; + for (i = 0; i < MAX_STREAMS; i++) + if (subs[i] != NULL) + return 0; + return 1; +} + +static int stream_start(struct snd_usb_caiaqdev *cdev) +{ + int i, ret; + struct device *dev = caiaqdev_to_dev(cdev); + + dev_dbg(dev, "%s(%p)\n", __func__, cdev); + + if (cdev->streaming) + return -EINVAL; + + memset(cdev->sub_playback, 0, sizeof(cdev->sub_playback)); + memset(cdev->sub_capture, 0, sizeof(cdev->sub_capture)); + cdev->input_panic = 0; + cdev->output_panic = 0; + cdev->first_packet = 4; + cdev->streaming = 1; + cdev->warned = 0; + + for (i = 0; i < N_URBS; i++) { + ret = usb_submit_urb(cdev->data_urbs_in[i], GFP_ATOMIC); + if (ret) { + dev_err(dev, "unable to trigger read #%d! (ret %d)\n", + i, ret); + cdev->streaming = 0; + return -EPIPE; + } + } + + return 0; +} + +static void stream_stop(struct snd_usb_caiaqdev *cdev) +{ + int i; + struct device *dev = caiaqdev_to_dev(cdev); + + dev_dbg(dev, "%s(%p)\n", __func__, cdev); + if (!cdev->streaming) + return; + + cdev->streaming = 0; + + for (i = 0; i < N_URBS; i++) { + usb_kill_urb(cdev->data_urbs_in[i]); + + if (test_bit(i, &cdev->outurb_active_mask)) + usb_kill_urb(cdev->data_urbs_out[i]); + } + + cdev->outurb_active_mask = 0; +} + +static int snd_usb_caiaq_substream_open(struct snd_pcm_substream *substream) +{ + struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); + struct device *dev = caiaqdev_to_dev(cdev); + + dev_dbg(dev, "%s(%p)\n", __func__, substream); + substream->runtime->hw = cdev->pcm_info; + snd_pcm_limit_hw_rates(substream->runtime); + + return 0; +} + +static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream) +{ + struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); + struct device *dev = caiaqdev_to_dev(cdev); + + dev_dbg(dev, "%s(%p)\n", __func__, substream); + if (all_substreams_zero(cdev->sub_playback) && + all_substreams_zero(cdev->sub_capture)) { + /* when the last client has stopped streaming, + * all sample rates are allowed again */ + stream_stop(cdev); + cdev->pcm_info.rates = cdev->samplerates; + } + + return 0; +} + +static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub) +{ + struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); + deactivate_substream(cdev, sub); + return 0; +} + +/* this should probably go upstream */ +#if SNDRV_PCM_RATE_5512 != 1 << 0 || SNDRV_PCM_RATE_192000 != 1 << 12 +#error "Change this table" +#endif + +static const unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100, + 48000, 64000, 88200, 96000, 176400, 192000 }; + +static int snd_usb_caiaq_pcm_prepare(struct snd_pcm_substream *substream) +{ + int bytes_per_sample, bpp, ret, i; + int index = substream->number; + struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + struct device *dev = caiaqdev_to_dev(cdev); + + dev_dbg(dev, "%s(%p)\n", __func__, substream); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + int out_pos; + + switch (cdev->spec.data_alignment) { + case 0: + case 2: + out_pos = BYTES_PER_SAMPLE + 1; + break; + case 3: + default: + out_pos = 0; + break; + } + + cdev->period_out_count[index] = out_pos; + cdev->audio_out_buf_pos[index] = out_pos; + } else { + int in_pos; + + switch (cdev->spec.data_alignment) { + case 0: + in_pos = BYTES_PER_SAMPLE + 2; + break; + case 2: + in_pos = BYTES_PER_SAMPLE; + break; + case 3: + default: + in_pos = 0; + break; + } + + cdev->period_in_count[index] = in_pos; + cdev->audio_in_buf_pos[index] = in_pos; + } + + if (cdev->streaming) + return 0; + + /* the first client that opens a stream defines the sample rate + * setting for all subsequent calls, until the last client closed. */ + for (i=0; i < ARRAY_SIZE(rates); i++) + if (runtime->rate == rates[i]) + cdev->pcm_info.rates = 1 << i; + + snd_pcm_limit_hw_rates(runtime); + + bytes_per_sample = BYTES_PER_SAMPLE; + if (cdev->spec.data_alignment >= 2) + bytes_per_sample++; + + bpp = ((runtime->rate / 8000) + CLOCK_DRIFT_TOLERANCE) + * bytes_per_sample * CHANNELS_PER_STREAM * cdev->n_streams; + + if (bpp > MAX_ENDPOINT_SIZE) + bpp = MAX_ENDPOINT_SIZE; + + ret = snd_usb_caiaq_set_audio_params(cdev, runtime->rate, + runtime->sample_bits, bpp); + if (ret) + return ret; + + ret = stream_start(cdev); + if (ret) + return ret; + + cdev->output_running = 0; + wait_event_timeout(cdev->prepare_wait_queue, cdev->output_running, HZ); + if (!cdev->output_running) { + stream_stop(cdev); + return -EPIPE; + } + + return 0; +} + +static int snd_usb_caiaq_pcm_trigger(struct snd_pcm_substream *sub, int cmd) +{ + struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); + struct device *dev = caiaqdev_to_dev(cdev); + + dev_dbg(dev, "%s(%p) cmd %d\n", __func__, sub, cmd); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + activate_substream(cdev, sub); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + deactivate_substream(cdev, sub); + break; + default: + return -EINVAL; + } + + return 0; +} + +static snd_pcm_uframes_t +snd_usb_caiaq_pcm_pointer(struct snd_pcm_substream *sub) +{ + int index = sub->number; + struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub); + snd_pcm_uframes_t ptr; + + spin_lock(&cdev->spinlock); + + if (cdev->input_panic || cdev->output_panic) { + ptr = SNDRV_PCM_POS_XRUN; + goto unlock; + } + + if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + ptr = bytes_to_frames(sub->runtime, + cdev->audio_out_buf_pos[index]); + else + ptr = bytes_to_frames(sub->runtime, + cdev->audio_in_buf_pos[index]); + +unlock: + spin_unlock(&cdev->spinlock); + return ptr; +} + +/* operators for both playback and capture */ +static const struct snd_pcm_ops snd_usb_caiaq_ops = { + .open = snd_usb_caiaq_substream_open, + .close = snd_usb_caiaq_substream_close, + .hw_free = snd_usb_caiaq_pcm_hw_free, + .prepare = snd_usb_caiaq_pcm_prepare, + .trigger = snd_usb_caiaq_pcm_trigger, + .pointer = snd_usb_caiaq_pcm_pointer, +}; + +static void check_for_elapsed_periods(struct snd_usb_caiaqdev *cdev, + struct snd_pcm_substream **subs) +{ + int stream, pb, *cnt; + struct snd_pcm_substream *sub; + + for (stream = 0; stream < cdev->n_streams; stream++) { + sub = subs[stream]; + if (!sub) + continue; + + pb = snd_pcm_lib_period_bytes(sub); + cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ? + &cdev->period_out_count[stream] : + &cdev->period_in_count[stream]; + + if (*cnt >= pb) { + snd_pcm_period_elapsed(sub); + *cnt %= pb; + } + } +} + +static void read_in_urb_mode0(struct snd_usb_caiaqdev *cdev, + const struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + struct snd_pcm_substream *sub; + int stream, i; + + if (all_substreams_zero(cdev->sub_capture)) + return; + + for (i = 0; i < iso->actual_length;) { + for (stream = 0; stream < cdev->n_streams; stream++, i++) { + sub = cdev->sub_capture[stream]; + if (sub) { + struct snd_pcm_runtime *rt = sub->runtime; + char *audio_buf = rt->dma_area; + int sz = frames_to_bytes(rt, rt->buffer_size); + audio_buf[cdev->audio_in_buf_pos[stream]++] + = usb_buf[i]; + cdev->period_in_count[stream]++; + if (cdev->audio_in_buf_pos[stream] == sz) + cdev->audio_in_buf_pos[stream] = 0; + } + } + } +} + +static void read_in_urb_mode2(struct snd_usb_caiaqdev *cdev, + const struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + unsigned char check_byte; + struct snd_pcm_substream *sub; + int stream, i; + + for (i = 0; i < iso->actual_length;) { + if (i % (cdev->n_streams * BYTES_PER_SAMPLE_USB) == 0) { + for (stream = 0; + stream < cdev->n_streams; + stream++, i++) { + if (cdev->first_packet) + continue; + + check_byte = MAKE_CHECKBYTE(cdev, stream, i); + + if ((usb_buf[i] & 0x3f) != check_byte) + cdev->input_panic = 1; + + if (usb_buf[i] & 0x80) + cdev->output_panic = 1; + } + } + cdev->first_packet = 0; + + for (stream = 0; stream < cdev->n_streams; stream++, i++) { + sub = cdev->sub_capture[stream]; + if (cdev->input_panic) + usb_buf[i] = 0; + + if (sub) { + struct snd_pcm_runtime *rt = sub->runtime; + char *audio_buf = rt->dma_area; + int sz = frames_to_bytes(rt, rt->buffer_size); + audio_buf[cdev->audio_in_buf_pos[stream]++] = + usb_buf[i]; + cdev->period_in_count[stream]++; + if (cdev->audio_in_buf_pos[stream] == sz) + cdev->audio_in_buf_pos[stream] = 0; + } + } + } +} + +static void read_in_urb_mode3(struct snd_usb_caiaqdev *cdev, + const struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + struct device *dev = caiaqdev_to_dev(cdev); + int stream, i; + + /* paranoia check */ + if (iso->actual_length % (BYTES_PER_SAMPLE_USB * CHANNELS_PER_STREAM)) + return; + + for (i = 0; i < iso->actual_length;) { + for (stream = 0; stream < cdev->n_streams; stream++) { + struct snd_pcm_substream *sub = cdev->sub_capture[stream]; + char *audio_buf = NULL; + int c, n, sz = 0; + + if (sub && !cdev->input_panic) { + struct snd_pcm_runtime *rt = sub->runtime; + audio_buf = rt->dma_area; + sz = frames_to_bytes(rt, rt->buffer_size); + } + + for (c = 0; c < CHANNELS_PER_STREAM; c++) { + /* 3 audio data bytes, followed by 1 check byte */ + if (audio_buf) { + for (n = 0; n < BYTES_PER_SAMPLE; n++) { + audio_buf[cdev->audio_in_buf_pos[stream]++] = usb_buf[i+n]; + + if (cdev->audio_in_buf_pos[stream] == sz) + cdev->audio_in_buf_pos[stream] = 0; + } + + cdev->period_in_count[stream] += BYTES_PER_SAMPLE; + } + + i += BYTES_PER_SAMPLE; + + if (usb_buf[i] != ((stream << 1) | c) && + !cdev->first_packet) { + if (!cdev->input_panic) + dev_warn(dev, " EXPECTED: %02x got %02x, c %d, stream %d, i %d\n", + ((stream << 1) | c), usb_buf[i], c, stream, i); + cdev->input_panic = 1; + } + + i++; + } + } + } + + if (cdev->first_packet > 0) + cdev->first_packet--; +} + +static void read_in_urb(struct snd_usb_caiaqdev *cdev, + const struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + struct device *dev = caiaqdev_to_dev(cdev); + + if (!cdev->streaming) + return; + + if (iso->actual_length < cdev->bpp) + return; + + switch (cdev->spec.data_alignment) { + case 0: + read_in_urb_mode0(cdev, urb, iso); + break; + case 2: + read_in_urb_mode2(cdev, urb, iso); + break; + case 3: + read_in_urb_mode3(cdev, urb, iso); + break; + } + + if ((cdev->input_panic || cdev->output_panic) && !cdev->warned) { + dev_warn(dev, "streaming error detected %s %s\n", + cdev->input_panic ? "(input)" : "", + cdev->output_panic ? "(output)" : ""); + cdev->warned = 1; + } +} + +static void fill_out_urb_mode_0(struct snd_usb_caiaqdev *cdev, + struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + struct snd_pcm_substream *sub; + int stream, i; + + for (i = 0; i < iso->length;) { + for (stream = 0; stream < cdev->n_streams; stream++, i++) { + sub = cdev->sub_playback[stream]; + if (sub) { + struct snd_pcm_runtime *rt = sub->runtime; + char *audio_buf = rt->dma_area; + int sz = frames_to_bytes(rt, rt->buffer_size); + usb_buf[i] = + audio_buf[cdev->audio_out_buf_pos[stream]]; + cdev->period_out_count[stream]++; + cdev->audio_out_buf_pos[stream]++; + if (cdev->audio_out_buf_pos[stream] == sz) + cdev->audio_out_buf_pos[stream] = 0; + } else + usb_buf[i] = 0; + } + + /* fill in the check bytes */ + if (cdev->spec.data_alignment == 2 && + i % (cdev->n_streams * BYTES_PER_SAMPLE_USB) == + (cdev->n_streams * CHANNELS_PER_STREAM)) + for (stream = 0; stream < cdev->n_streams; stream++, i++) + usb_buf[i] = MAKE_CHECKBYTE(cdev, stream, i); + } +} + +static void fill_out_urb_mode_3(struct snd_usb_caiaqdev *cdev, + struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + unsigned char *usb_buf = urb->transfer_buffer + iso->offset; + int stream, i; + + for (i = 0; i < iso->length;) { + for (stream = 0; stream < cdev->n_streams; stream++) { + struct snd_pcm_substream *sub = cdev->sub_playback[stream]; + char *audio_buf = NULL; + int c, n, sz = 0; + + if (sub) { + struct snd_pcm_runtime *rt = sub->runtime; + audio_buf = rt->dma_area; + sz = frames_to_bytes(rt, rt->buffer_size); + } + + for (c = 0; c < CHANNELS_PER_STREAM; c++) { + for (n = 0; n < BYTES_PER_SAMPLE; n++) { + if (audio_buf) { + usb_buf[i+n] = audio_buf[cdev->audio_out_buf_pos[stream]++]; + + if (cdev->audio_out_buf_pos[stream] == sz) + cdev->audio_out_buf_pos[stream] = 0; + } else { + usb_buf[i+n] = 0; + } + } + + if (audio_buf) + cdev->period_out_count[stream] += BYTES_PER_SAMPLE; + + i += BYTES_PER_SAMPLE; + + /* fill in the check byte pattern */ + usb_buf[i++] = (stream << 1) | c; + } + } + } +} + +static inline void fill_out_urb(struct snd_usb_caiaqdev *cdev, + struct urb *urb, + const struct usb_iso_packet_descriptor *iso) +{ + switch (cdev->spec.data_alignment) { + case 0: + case 2: + fill_out_urb_mode_0(cdev, urb, iso); + break; + case 3: + fill_out_urb_mode_3(cdev, urb, iso); + break; + } +} + +static void read_completed(struct urb *urb) +{ + struct snd_usb_caiaq_cb_info *info = urb->context; + struct snd_usb_caiaqdev *cdev; + struct device *dev; + struct urb *out = NULL; + int i, frame, len, send_it = 0, outframe = 0; + unsigned long flags; + size_t offset = 0; + + if (urb->status || !info) + return; + + cdev = info->cdev; + dev = caiaqdev_to_dev(cdev); + + if (!cdev->streaming) + return; + + /* find an unused output urb that is unused */ + for (i = 0; i < N_URBS; i++) + if (test_and_set_bit(i, &cdev->outurb_active_mask) == 0) { + out = cdev->data_urbs_out[i]; + break; + } + + if (!out) { + dev_err(dev, "Unable to find an output urb to use\n"); + goto requeue; + } + + /* read the recently received packet and send back one which has + * the same layout */ + for (frame = 0; frame < FRAMES_PER_URB; frame++) { + if (urb->iso_frame_desc[frame].status) + continue; + + len = urb->iso_frame_desc[outframe].actual_length; + out->iso_frame_desc[outframe].length = len; + out->iso_frame_desc[outframe].actual_length = 0; + out->iso_frame_desc[outframe].offset = offset; + offset += len; + + if (len > 0) { + spin_lock_irqsave(&cdev->spinlock, flags); + fill_out_urb(cdev, out, &out->iso_frame_desc[outframe]); + read_in_urb(cdev, urb, &urb->iso_frame_desc[frame]); + spin_unlock_irqrestore(&cdev->spinlock, flags); + check_for_elapsed_periods(cdev, cdev->sub_playback); + check_for_elapsed_periods(cdev, cdev->sub_capture); + send_it = 1; + } + + outframe++; + } + + if (send_it) { + out->number_of_packets = outframe; + usb_submit_urb(out, GFP_ATOMIC); + } else { + struct snd_usb_caiaq_cb_info *oinfo = out->context; + clear_bit(oinfo->index, &cdev->outurb_active_mask); + } + +requeue: + /* re-submit inbound urb */ + for (frame = 0; frame < FRAMES_PER_URB; frame++) { + urb->iso_frame_desc[frame].offset = BYTES_PER_FRAME * frame; + urb->iso_frame_desc[frame].length = BYTES_PER_FRAME; + urb->iso_frame_desc[frame].actual_length = 0; + } + + urb->number_of_packets = FRAMES_PER_URB; + usb_submit_urb(urb, GFP_ATOMIC); +} + +static void write_completed(struct urb *urb) +{ + struct snd_usb_caiaq_cb_info *info = urb->context; + struct snd_usb_caiaqdev *cdev = info->cdev; + + if (!cdev->output_running) { + cdev->output_running = 1; + wake_up(&cdev->prepare_wait_queue); + } + + clear_bit(info->index, &cdev->outurb_active_mask); +} + +static struct urb **alloc_urbs(struct snd_usb_caiaqdev *cdev, int dir, int *ret) +{ + int i, frame; + struct urb **urbs; + struct usb_device *usb_dev = cdev->chip.dev; + unsigned int pipe; + + pipe = (dir == SNDRV_PCM_STREAM_PLAYBACK) ? + usb_sndisocpipe(usb_dev, ENDPOINT_PLAYBACK) : + usb_rcvisocpipe(usb_dev, ENDPOINT_CAPTURE); + + urbs = kmalloc_array(N_URBS, sizeof(*urbs), GFP_KERNEL); + if (!urbs) { + *ret = -ENOMEM; + return NULL; + } + + for (i = 0; i < N_URBS; i++) { + urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL); + if (!urbs[i]) { + *ret = -ENOMEM; + return urbs; + } + + urbs[i]->transfer_buffer = + kmalloc_array(BYTES_PER_FRAME, FRAMES_PER_URB, + GFP_KERNEL); + if (!urbs[i]->transfer_buffer) { + *ret = -ENOMEM; + return urbs; + } + + for (frame = 0; frame < FRAMES_PER_URB; frame++) { + struct usb_iso_packet_descriptor *iso = + &urbs[i]->iso_frame_desc[frame]; + + iso->offset = BYTES_PER_FRAME * frame; + iso->length = BYTES_PER_FRAME; + } + + urbs[i]->dev = usb_dev; + urbs[i]->pipe = pipe; + urbs[i]->transfer_buffer_length = FRAMES_PER_URB + * BYTES_PER_FRAME; + urbs[i]->context = &cdev->data_cb_info[i]; + urbs[i]->interval = 1; + urbs[i]->number_of_packets = FRAMES_PER_URB; + urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ? + read_completed : write_completed; + } + + *ret = 0; + return urbs; +} + +static void free_urbs(struct urb **urbs) +{ + int i; + + if (!urbs) + return; + + for (i = 0; i < N_URBS; i++) { + if (!urbs[i]) + continue; + + usb_kill_urb(urbs[i]); + kfree(urbs[i]->transfer_buffer); + usb_free_urb(urbs[i]); + } + + kfree(urbs); +} + +int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev) +{ + int i, ret; + struct device *dev = caiaqdev_to_dev(cdev); + + cdev->n_audio_in = max(cdev->spec.num_analog_audio_in, + cdev->spec.num_digital_audio_in) / + CHANNELS_PER_STREAM; + cdev->n_audio_out = max(cdev->spec.num_analog_audio_out, + cdev->spec.num_digital_audio_out) / + CHANNELS_PER_STREAM; + cdev->n_streams = max(cdev->n_audio_in, cdev->n_audio_out); + + dev_dbg(dev, "cdev->n_audio_in = %d\n", cdev->n_audio_in); + dev_dbg(dev, "cdev->n_audio_out = %d\n", cdev->n_audio_out); + dev_dbg(dev, "cdev->n_streams = %d\n", cdev->n_streams); + + if (cdev->n_streams > MAX_STREAMS) { + dev_err(dev, "unable to initialize device, too many streams.\n"); + return -EINVAL; + } + + if (cdev->n_streams < 1) { + dev_err(dev, "bogus number of streams: %d\n", cdev->n_streams); + return -EINVAL; + } + + ret = snd_pcm_new(cdev->chip.card, cdev->product_name, 0, + cdev->n_audio_out, cdev->n_audio_in, &cdev->pcm); + + if (ret < 0) { + dev_err(dev, "snd_pcm_new() returned %d\n", ret); + return ret; + } + + cdev->pcm->private_data = cdev; + strscpy(cdev->pcm->name, cdev->product_name, sizeof(cdev->pcm->name)); + + memset(cdev->sub_playback, 0, sizeof(cdev->sub_playback)); + memset(cdev->sub_capture, 0, sizeof(cdev->sub_capture)); + + memcpy(&cdev->pcm_info, &snd_usb_caiaq_pcm_hardware, + sizeof(snd_usb_caiaq_pcm_hardware)); + + /* setup samplerates */ + cdev->samplerates = cdev->pcm_info.rates; + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_SESSIONIO): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_GUITARRIGMOBILE): + cdev->samplerates |= SNDRV_PCM_RATE_192000; + fallthrough; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO2DJ): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORAUDIO2): + cdev->samplerates |= SNDRV_PCM_RATE_88200; + break; + } + + snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_usb_caiaq_ops); + snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_usb_caiaq_ops); + snd_pcm_set_managed_buffer_all(cdev->pcm, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); + + cdev->data_cb_info = + kmalloc_array(N_URBS, sizeof(struct snd_usb_caiaq_cb_info), + GFP_KERNEL); + + if (!cdev->data_cb_info) + return -ENOMEM; + + cdev->outurb_active_mask = 0; + BUILD_BUG_ON(N_URBS > (sizeof(cdev->outurb_active_mask) * 8)); + + for (i = 0; i < N_URBS; i++) { + cdev->data_cb_info[i].cdev = cdev; + cdev->data_cb_info[i].index = i; + } + + cdev->data_urbs_in = alloc_urbs(cdev, SNDRV_PCM_STREAM_CAPTURE, &ret); + if (ret < 0) { + kfree(cdev->data_cb_info); + free_urbs(cdev->data_urbs_in); + return ret; + } + + cdev->data_urbs_out = alloc_urbs(cdev, SNDRV_PCM_STREAM_PLAYBACK, &ret); + if (ret < 0) { + kfree(cdev->data_cb_info); + free_urbs(cdev->data_urbs_in); + free_urbs(cdev->data_urbs_out); + return ret; + } + + return 0; +} + +void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *cdev) +{ + struct device *dev = caiaqdev_to_dev(cdev); + + dev_dbg(dev, "%s(%p)\n", __func__, cdev); + stream_stop(cdev); + free_urbs(cdev->data_urbs_in); + free_urbs(cdev->data_urbs_out); + kfree(cdev->data_cb_info); +} + diff --git a/sound/usb/caiaq/audio.h b/sound/usb/caiaq/audio.h new file mode 100644 index 000000000..869bf6264 --- /dev/null +++ b/sound/usb/caiaq/audio.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef CAIAQ_AUDIO_H +#define CAIAQ_AUDIO_H + +int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev); +void snd_usb_caiaq_audio_free(struct snd_usb_caiaqdev *cdev); + +#endif /* CAIAQ_AUDIO_H */ diff --git a/sound/usb/caiaq/control.c b/sound/usb/caiaq/control.c new file mode 100644 index 000000000..af459c49b --- /dev/null +++ b/sound/usb/caiaq/control.c @@ -0,0 +1,643 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2007 Daniel Mack + * friendly supported by NI. + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/usb.h> +#include <sound/control.h> +#include <sound/core.h> +#include <sound/pcm.h> + +#include "device.h" +#include "control.h" + +#define CNT_INTVAL 0x10000 +#define MASCHINE_BANK_SIZE 32 + +static int control_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_usb_audio *chip = snd_kcontrol_chip(kcontrol); + struct snd_usb_caiaqdev *cdev = caiaqdev(chip->card); + int pos = kcontrol->private_value; + int is_intval = pos & CNT_INTVAL; + int maxval = 63; + + uinfo->count = 1; + pos &= ~CNT_INTVAL; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ): + if (pos == 0) { + /* current input mode of A8DJ and A4DJ */ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 2; + return 0; + } + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + maxval = 127; + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4): + maxval = 31; + break; + } + + if (is_intval) { + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = maxval; + } else { + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + } + + return 0; +} + +static int control_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_usb_audio *chip = snd_kcontrol_chip(kcontrol); + struct snd_usb_caiaqdev *cdev = caiaqdev(chip->card); + int pos = kcontrol->private_value; + + if (pos & CNT_INTVAL) + ucontrol->value.integer.value[0] + = cdev->control_state[pos & ~CNT_INTVAL]; + else + ucontrol->value.integer.value[0] + = !!(cdev->control_state[pos / 8] & (1 << pos % 8)); + + return 0; +} + +static int control_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_usb_audio *chip = snd_kcontrol_chip(kcontrol); + struct snd_usb_caiaqdev *cdev = caiaqdev(chip->card); + int pos = kcontrol->private_value; + int v = ucontrol->value.integer.value[0]; + unsigned char cmd; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER): + cmd = EP1_CMD_DIMM_LEDS; + break; + default: + cmd = EP1_CMD_WRITE_IO; + break; + } + + if (pos & CNT_INTVAL) { + int i = pos & ~CNT_INTVAL; + + cdev->control_state[i] = v; + + if (cdev->chip.usb_id == + USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4)) { + int actual_len; + + cdev->ep8_out_buf[0] = i; + cdev->ep8_out_buf[1] = v; + + usb_bulk_msg(cdev->chip.dev, + usb_sndbulkpipe(cdev->chip.dev, 8), + cdev->ep8_out_buf, sizeof(cdev->ep8_out_buf), + &actual_len, 200); + } else if (cdev->chip.usb_id == + USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER)) { + + int bank = 0; + int offset = 0; + + if (i >= MASCHINE_BANK_SIZE) { + bank = 0x1e; + offset = MASCHINE_BANK_SIZE; + } + + snd_usb_caiaq_send_command_bank(cdev, cmd, bank, + cdev->control_state + offset, + MASCHINE_BANK_SIZE); + } else { + snd_usb_caiaq_send_command(cdev, cmd, + cdev->control_state, sizeof(cdev->control_state)); + } + } else { + if (v) + cdev->control_state[pos / 8] |= 1 << (pos % 8); + else + cdev->control_state[pos / 8] &= ~(1 << (pos % 8)); + + snd_usb_caiaq_send_command(cdev, cmd, + cdev->control_state, sizeof(cdev->control_state)); + } + + return 1; +} + +static struct snd_kcontrol_new kcontrol_template = { + .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .index = 0, + .info = control_info, + .get = control_get, + .put = control_put, + /* name and private_value filled later */ +}; + +struct caiaq_controller { + char *name; + int index; +}; + +static const struct caiaq_controller ak1_controller[] = { + { "LED left", 2 }, + { "LED middle", 1 }, + { "LED right", 0 }, + { "LED ring", 3 } +}; + +static const struct caiaq_controller rk2_controller[] = { + { "LED 1", 5 }, + { "LED 2", 4 }, + { "LED 3", 3 }, + { "LED 4", 2 }, + { "LED 5", 1 }, + { "LED 6", 0 }, + { "LED pedal", 6 }, + { "LED 7seg_1b", 8 }, + { "LED 7seg_1c", 9 }, + { "LED 7seg_2a", 10 }, + { "LED 7seg_2b", 11 }, + { "LED 7seg_2c", 12 }, + { "LED 7seg_2d", 13 }, + { "LED 7seg_2e", 14 }, + { "LED 7seg_2f", 15 }, + { "LED 7seg_2g", 16 }, + { "LED 7seg_3a", 17 }, + { "LED 7seg_3b", 18 }, + { "LED 7seg_3c", 19 }, + { "LED 7seg_3d", 20 }, + { "LED 7seg_3e", 21 }, + { "LED 7seg_3f", 22 }, + { "LED 7seg_3g", 23 } +}; + +static const struct caiaq_controller rk3_controller[] = { + { "LED 7seg_1a", 0 + 0 }, + { "LED 7seg_1b", 0 + 1 }, + { "LED 7seg_1c", 0 + 2 }, + { "LED 7seg_1d", 0 + 3 }, + { "LED 7seg_1e", 0 + 4 }, + { "LED 7seg_1f", 0 + 5 }, + { "LED 7seg_1g", 0 + 6 }, + { "LED 7seg_1p", 0 + 7 }, + + { "LED 7seg_2a", 8 + 0 }, + { "LED 7seg_2b", 8 + 1 }, + { "LED 7seg_2c", 8 + 2 }, + { "LED 7seg_2d", 8 + 3 }, + { "LED 7seg_2e", 8 + 4 }, + { "LED 7seg_2f", 8 + 5 }, + { "LED 7seg_2g", 8 + 6 }, + { "LED 7seg_2p", 8 + 7 }, + + { "LED 7seg_3a", 16 + 0 }, + { "LED 7seg_3b", 16 + 1 }, + { "LED 7seg_3c", 16 + 2 }, + { "LED 7seg_3d", 16 + 3 }, + { "LED 7seg_3e", 16 + 4 }, + { "LED 7seg_3f", 16 + 5 }, + { "LED 7seg_3g", 16 + 6 }, + { "LED 7seg_3p", 16 + 7 }, + + { "LED 7seg_4a", 24 + 0 }, + { "LED 7seg_4b", 24 + 1 }, + { "LED 7seg_4c", 24 + 2 }, + { "LED 7seg_4d", 24 + 3 }, + { "LED 7seg_4e", 24 + 4 }, + { "LED 7seg_4f", 24 + 5 }, + { "LED 7seg_4g", 24 + 6 }, + { "LED 7seg_4p", 24 + 7 }, + + { "LED 1", 32 + 0 }, + { "LED 2", 32 + 1 }, + { "LED 3", 32 + 2 }, + { "LED 4", 32 + 3 }, + { "LED 5", 32 + 4 }, + { "LED 6", 32 + 5 }, + { "LED 7", 32 + 6 }, + { "LED 8", 32 + 7 }, + { "LED pedal", 32 + 8 } +}; + +static const struct caiaq_controller kore_controller[] = { + { "LED F1", 8 | CNT_INTVAL }, + { "LED F2", 12 | CNT_INTVAL }, + { "LED F3", 0 | CNT_INTVAL }, + { "LED F4", 4 | CNT_INTVAL }, + { "LED F5", 11 | CNT_INTVAL }, + { "LED F6", 15 | CNT_INTVAL }, + { "LED F7", 3 | CNT_INTVAL }, + { "LED F8", 7 | CNT_INTVAL }, + { "LED touch1", 10 | CNT_INTVAL }, + { "LED touch2", 14 | CNT_INTVAL }, + { "LED touch3", 2 | CNT_INTVAL }, + { "LED touch4", 6 | CNT_INTVAL }, + { "LED touch5", 9 | CNT_INTVAL }, + { "LED touch6", 13 | CNT_INTVAL }, + { "LED touch7", 1 | CNT_INTVAL }, + { "LED touch8", 5 | CNT_INTVAL }, + { "LED left", 18 | CNT_INTVAL }, + { "LED right", 22 | CNT_INTVAL }, + { "LED up", 16 | CNT_INTVAL }, + { "LED down", 20 | CNT_INTVAL }, + { "LED stop", 23 | CNT_INTVAL }, + { "LED play", 21 | CNT_INTVAL }, + { "LED record", 19 | CNT_INTVAL }, + { "LED listen", 17 | CNT_INTVAL }, + { "LED lcd", 30 | CNT_INTVAL }, + { "LED menu", 28 | CNT_INTVAL }, + { "LED sound", 31 | CNT_INTVAL }, + { "LED esc", 29 | CNT_INTVAL }, + { "LED view", 27 | CNT_INTVAL }, + { "LED enter", 24 | CNT_INTVAL }, + { "LED control", 26 | CNT_INTVAL } +}; + +static const struct caiaq_controller a8dj_controller[] = { + { "Current input mode", 0 | CNT_INTVAL }, + { "GND lift for TC Vinyl mode", 24 + 0 }, + { "GND lift for TC CD/Line mode", 24 + 1 }, + { "GND lift for phono mode", 24 + 2 }, + { "Software lock", 40 } +}; + +static const struct caiaq_controller a4dj_controller[] = { + { "Current input mode", 0 | CNT_INTVAL } +}; + +static const struct caiaq_controller kontrolx1_controller[] = { + { "LED FX A: ON", 7 | CNT_INTVAL }, + { "LED FX A: 1", 6 | CNT_INTVAL }, + { "LED FX A: 2", 5 | CNT_INTVAL }, + { "LED FX A: 3", 4 | CNT_INTVAL }, + { "LED FX B: ON", 3 | CNT_INTVAL }, + { "LED FX B: 1", 2 | CNT_INTVAL }, + { "LED FX B: 2", 1 | CNT_INTVAL }, + { "LED FX B: 3", 0 | CNT_INTVAL }, + + { "LED Hotcue", 28 | CNT_INTVAL }, + { "LED Shift (white)", 29 | CNT_INTVAL }, + { "LED Shift (green)", 30 | CNT_INTVAL }, + + { "LED Deck A: FX1", 24 | CNT_INTVAL }, + { "LED Deck A: FX2", 25 | CNT_INTVAL }, + { "LED Deck A: IN", 17 | CNT_INTVAL }, + { "LED Deck A: OUT", 16 | CNT_INTVAL }, + { "LED Deck A: < BEAT", 19 | CNT_INTVAL }, + { "LED Deck A: BEAT >", 18 | CNT_INTVAL }, + { "LED Deck A: CUE/ABS", 21 | CNT_INTVAL }, + { "LED Deck A: CUP/REL", 20 | CNT_INTVAL }, + { "LED Deck A: PLAY", 23 | CNT_INTVAL }, + { "LED Deck A: SYNC", 22 | CNT_INTVAL }, + + { "LED Deck B: FX1", 26 | CNT_INTVAL }, + { "LED Deck B: FX2", 27 | CNT_INTVAL }, + { "LED Deck B: IN", 15 | CNT_INTVAL }, + { "LED Deck B: OUT", 14 | CNT_INTVAL }, + { "LED Deck B: < BEAT", 13 | CNT_INTVAL }, + { "LED Deck B: BEAT >", 12 | CNT_INTVAL }, + { "LED Deck B: CUE/ABS", 11 | CNT_INTVAL }, + { "LED Deck B: CUP/REL", 10 | CNT_INTVAL }, + { "LED Deck B: PLAY", 9 | CNT_INTVAL }, + { "LED Deck B: SYNC", 8 | CNT_INTVAL }, +}; + +static const struct caiaq_controller kontrols4_controller[] = { + { "LED: Master: Quant", 10 | CNT_INTVAL }, + { "LED: Master: Headphone", 11 | CNT_INTVAL }, + { "LED: Master: Master", 12 | CNT_INTVAL }, + { "LED: Master: Snap", 14 | CNT_INTVAL }, + { "LED: Master: Warning", 15 | CNT_INTVAL }, + { "LED: Master: Master button", 112 | CNT_INTVAL }, + { "LED: Master: Snap button", 113 | CNT_INTVAL }, + { "LED: Master: Rec", 118 | CNT_INTVAL }, + { "LED: Master: Size", 119 | CNT_INTVAL }, + { "LED: Master: Quant button", 120 | CNT_INTVAL }, + { "LED: Master: Browser button", 121 | CNT_INTVAL }, + { "LED: Master: Play button", 126 | CNT_INTVAL }, + { "LED: Master: Undo button", 127 | CNT_INTVAL }, + + { "LED: Channel A: >", 4 | CNT_INTVAL }, + { "LED: Channel A: <", 5 | CNT_INTVAL }, + { "LED: Channel A: Meter 1", 97 | CNT_INTVAL }, + { "LED: Channel A: Meter 2", 98 | CNT_INTVAL }, + { "LED: Channel A: Meter 3", 99 | CNT_INTVAL }, + { "LED: Channel A: Meter 4", 100 | CNT_INTVAL }, + { "LED: Channel A: Meter 5", 101 | CNT_INTVAL }, + { "LED: Channel A: Meter 6", 102 | CNT_INTVAL }, + { "LED: Channel A: Meter clip", 103 | CNT_INTVAL }, + { "LED: Channel A: Active", 114 | CNT_INTVAL }, + { "LED: Channel A: Cue", 116 | CNT_INTVAL }, + { "LED: Channel A: FX1", 149 | CNT_INTVAL }, + { "LED: Channel A: FX2", 148 | CNT_INTVAL }, + + { "LED: Channel B: >", 2 | CNT_INTVAL }, + { "LED: Channel B: <", 3 | CNT_INTVAL }, + { "LED: Channel B: Meter 1", 89 | CNT_INTVAL }, + { "LED: Channel B: Meter 2", 90 | CNT_INTVAL }, + { "LED: Channel B: Meter 3", 91 | CNT_INTVAL }, + { "LED: Channel B: Meter 4", 92 | CNT_INTVAL }, + { "LED: Channel B: Meter 5", 93 | CNT_INTVAL }, + { "LED: Channel B: Meter 6", 94 | CNT_INTVAL }, + { "LED: Channel B: Meter clip", 95 | CNT_INTVAL }, + { "LED: Channel B: Active", 122 | CNT_INTVAL }, + { "LED: Channel B: Cue", 125 | CNT_INTVAL }, + { "LED: Channel B: FX1", 147 | CNT_INTVAL }, + { "LED: Channel B: FX2", 146 | CNT_INTVAL }, + + { "LED: Channel C: >", 6 | CNT_INTVAL }, + { "LED: Channel C: <", 7 | CNT_INTVAL }, + { "LED: Channel C: Meter 1", 105 | CNT_INTVAL }, + { "LED: Channel C: Meter 2", 106 | CNT_INTVAL }, + { "LED: Channel C: Meter 3", 107 | CNT_INTVAL }, + { "LED: Channel C: Meter 4", 108 | CNT_INTVAL }, + { "LED: Channel C: Meter 5", 109 | CNT_INTVAL }, + { "LED: Channel C: Meter 6", 110 | CNT_INTVAL }, + { "LED: Channel C: Meter clip", 111 | CNT_INTVAL }, + { "LED: Channel C: Active", 115 | CNT_INTVAL }, + { "LED: Channel C: Cue", 117 | CNT_INTVAL }, + { "LED: Channel C: FX1", 151 | CNT_INTVAL }, + { "LED: Channel C: FX2", 150 | CNT_INTVAL }, + + { "LED: Channel D: >", 0 | CNT_INTVAL }, + { "LED: Channel D: <", 1 | CNT_INTVAL }, + { "LED: Channel D: Meter 1", 81 | CNT_INTVAL }, + { "LED: Channel D: Meter 2", 82 | CNT_INTVAL }, + { "LED: Channel D: Meter 3", 83 | CNT_INTVAL }, + { "LED: Channel D: Meter 4", 84 | CNT_INTVAL }, + { "LED: Channel D: Meter 5", 85 | CNT_INTVAL }, + { "LED: Channel D: Meter 6", 86 | CNT_INTVAL }, + { "LED: Channel D: Meter clip", 87 | CNT_INTVAL }, + { "LED: Channel D: Active", 123 | CNT_INTVAL }, + { "LED: Channel D: Cue", 124 | CNT_INTVAL }, + { "LED: Channel D: FX1", 145 | CNT_INTVAL }, + { "LED: Channel D: FX2", 144 | CNT_INTVAL }, + + { "LED: Deck A: 1 (blue)", 22 | CNT_INTVAL }, + { "LED: Deck A: 1 (green)", 23 | CNT_INTVAL }, + { "LED: Deck A: 2 (blue)", 20 | CNT_INTVAL }, + { "LED: Deck A: 2 (green)", 21 | CNT_INTVAL }, + { "LED: Deck A: 3 (blue)", 18 | CNT_INTVAL }, + { "LED: Deck A: 3 (green)", 19 | CNT_INTVAL }, + { "LED: Deck A: 4 (blue)", 16 | CNT_INTVAL }, + { "LED: Deck A: 4 (green)", 17 | CNT_INTVAL }, + { "LED: Deck A: Load", 44 | CNT_INTVAL }, + { "LED: Deck A: Deck C button", 45 | CNT_INTVAL }, + { "LED: Deck A: In", 47 | CNT_INTVAL }, + { "LED: Deck A: Out", 46 | CNT_INTVAL }, + { "LED: Deck A: Shift", 24 | CNT_INTVAL }, + { "LED: Deck A: Sync", 27 | CNT_INTVAL }, + { "LED: Deck A: Cue", 26 | CNT_INTVAL }, + { "LED: Deck A: Play", 25 | CNT_INTVAL }, + { "LED: Deck A: Tempo up", 33 | CNT_INTVAL }, + { "LED: Deck A: Tempo down", 32 | CNT_INTVAL }, + { "LED: Deck A: Master", 34 | CNT_INTVAL }, + { "LED: Deck A: Keylock", 35 | CNT_INTVAL }, + { "LED: Deck A: Deck A", 37 | CNT_INTVAL }, + { "LED: Deck A: Deck C", 36 | CNT_INTVAL }, + { "LED: Deck A: Samples", 38 | CNT_INTVAL }, + { "LED: Deck A: On Air", 39 | CNT_INTVAL }, + { "LED: Deck A: Sample 1", 31 | CNT_INTVAL }, + { "LED: Deck A: Sample 2", 30 | CNT_INTVAL }, + { "LED: Deck A: Sample 3", 29 | CNT_INTVAL }, + { "LED: Deck A: Sample 4", 28 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - A", 55 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - B", 54 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - C", 53 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - D", 52 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - E", 51 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - F", 50 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - G", 49 | CNT_INTVAL }, + { "LED: Deck A: Digit 1 - dot", 48 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - A", 63 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - B", 62 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - C", 61 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - D", 60 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - E", 59 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - F", 58 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - G", 57 | CNT_INTVAL }, + { "LED: Deck A: Digit 2 - dot", 56 | CNT_INTVAL }, + + { "LED: Deck B: 1 (blue)", 78 | CNT_INTVAL }, + { "LED: Deck B: 1 (green)", 79 | CNT_INTVAL }, + { "LED: Deck B: 2 (blue)", 76 | CNT_INTVAL }, + { "LED: Deck B: 2 (green)", 77 | CNT_INTVAL }, + { "LED: Deck B: 3 (blue)", 74 | CNT_INTVAL }, + { "LED: Deck B: 3 (green)", 75 | CNT_INTVAL }, + { "LED: Deck B: 4 (blue)", 72 | CNT_INTVAL }, + { "LED: Deck B: 4 (green)", 73 | CNT_INTVAL }, + { "LED: Deck B: Load", 180 | CNT_INTVAL }, + { "LED: Deck B: Deck D button", 181 | CNT_INTVAL }, + { "LED: Deck B: In", 183 | CNT_INTVAL }, + { "LED: Deck B: Out", 182 | CNT_INTVAL }, + { "LED: Deck B: Shift", 64 | CNT_INTVAL }, + { "LED: Deck B: Sync", 67 | CNT_INTVAL }, + { "LED: Deck B: Cue", 66 | CNT_INTVAL }, + { "LED: Deck B: Play", 65 | CNT_INTVAL }, + { "LED: Deck B: Tempo up", 185 | CNT_INTVAL }, + { "LED: Deck B: Tempo down", 184 | CNT_INTVAL }, + { "LED: Deck B: Master", 186 | CNT_INTVAL }, + { "LED: Deck B: Keylock", 187 | CNT_INTVAL }, + { "LED: Deck B: Deck B", 189 | CNT_INTVAL }, + { "LED: Deck B: Deck D", 188 | CNT_INTVAL }, + { "LED: Deck B: Samples", 190 | CNT_INTVAL }, + { "LED: Deck B: On Air", 191 | CNT_INTVAL }, + { "LED: Deck B: Sample 1", 71 | CNT_INTVAL }, + { "LED: Deck B: Sample 2", 70 | CNT_INTVAL }, + { "LED: Deck B: Sample 3", 69 | CNT_INTVAL }, + { "LED: Deck B: Sample 4", 68 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - A", 175 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - B", 174 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - C", 173 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - D", 172 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - E", 171 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - F", 170 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - G", 169 | CNT_INTVAL }, + { "LED: Deck B: Digit 1 - dot", 168 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - A", 167 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - B", 166 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - C", 165 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - D", 164 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - E", 163 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - F", 162 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - G", 161 | CNT_INTVAL }, + { "LED: Deck B: Digit 2 - dot", 160 | CNT_INTVAL }, + + { "LED: FX1: dry/wet", 153 | CNT_INTVAL }, + { "LED: FX1: 1", 154 | CNT_INTVAL }, + { "LED: FX1: 2", 155 | CNT_INTVAL }, + { "LED: FX1: 3", 156 | CNT_INTVAL }, + { "LED: FX1: Mode", 157 | CNT_INTVAL }, + { "LED: FX2: dry/wet", 129 | CNT_INTVAL }, + { "LED: FX2: 1", 130 | CNT_INTVAL }, + { "LED: FX2: 2", 131 | CNT_INTVAL }, + { "LED: FX2: 3", 132 | CNT_INTVAL }, + { "LED: FX2: Mode", 133 | CNT_INTVAL }, +}; + +static const struct caiaq_controller maschine_controller[] = { + { "LED: Pad 1", 3 | CNT_INTVAL }, + { "LED: Pad 2", 2 | CNT_INTVAL }, + { "LED: Pad 3", 1 | CNT_INTVAL }, + { "LED: Pad 4", 0 | CNT_INTVAL }, + { "LED: Pad 5", 7 | CNT_INTVAL }, + { "LED: Pad 6", 6 | CNT_INTVAL }, + { "LED: Pad 7", 5 | CNT_INTVAL }, + { "LED: Pad 8", 4 | CNT_INTVAL }, + { "LED: Pad 9", 11 | CNT_INTVAL }, + { "LED: Pad 10", 10 | CNT_INTVAL }, + { "LED: Pad 11", 9 | CNT_INTVAL }, + { "LED: Pad 12", 8 | CNT_INTVAL }, + { "LED: Pad 13", 15 | CNT_INTVAL }, + { "LED: Pad 14", 14 | CNT_INTVAL }, + { "LED: Pad 15", 13 | CNT_INTVAL }, + { "LED: Pad 16", 12 | CNT_INTVAL }, + + { "LED: Mute", 16 | CNT_INTVAL }, + { "LED: Solo", 17 | CNT_INTVAL }, + { "LED: Select", 18 | CNT_INTVAL }, + { "LED: Duplicate", 19 | CNT_INTVAL }, + { "LED: Navigate", 20 | CNT_INTVAL }, + { "LED: Pad Mode", 21 | CNT_INTVAL }, + { "LED: Pattern", 22 | CNT_INTVAL }, + { "LED: Scene", 23 | CNT_INTVAL }, + + { "LED: Shift", 24 | CNT_INTVAL }, + { "LED: Erase", 25 | CNT_INTVAL }, + { "LED: Grid", 26 | CNT_INTVAL }, + { "LED: Right Bottom", 27 | CNT_INTVAL }, + { "LED: Rec", 28 | CNT_INTVAL }, + { "LED: Play", 29 | CNT_INTVAL }, + { "LED: Left Bottom", 32 | CNT_INTVAL }, + { "LED: Restart", 33 | CNT_INTVAL }, + + { "LED: Group A", 41 | CNT_INTVAL }, + { "LED: Group B", 40 | CNT_INTVAL }, + { "LED: Group C", 37 | CNT_INTVAL }, + { "LED: Group D", 36 | CNT_INTVAL }, + { "LED: Group E", 39 | CNT_INTVAL }, + { "LED: Group F", 38 | CNT_INTVAL }, + { "LED: Group G", 35 | CNT_INTVAL }, + { "LED: Group H", 34 | CNT_INTVAL }, + + { "LED: Auto Write", 42 | CNT_INTVAL }, + { "LED: Snap", 43 | CNT_INTVAL }, + { "LED: Right Top", 44 | CNT_INTVAL }, + { "LED: Left Top", 45 | CNT_INTVAL }, + { "LED: Sampling", 46 | CNT_INTVAL }, + { "LED: Browse", 47 | CNT_INTVAL }, + { "LED: Step", 48 | CNT_INTVAL }, + { "LED: Control", 49 | CNT_INTVAL }, + + { "LED: Top Button 1", 57 | CNT_INTVAL }, + { "LED: Top Button 2", 56 | CNT_INTVAL }, + { "LED: Top Button 3", 55 | CNT_INTVAL }, + { "LED: Top Button 4", 54 | CNT_INTVAL }, + { "LED: Top Button 5", 53 | CNT_INTVAL }, + { "LED: Top Button 6", 52 | CNT_INTVAL }, + { "LED: Top Button 7", 51 | CNT_INTVAL }, + { "LED: Top Button 8", 50 | CNT_INTVAL }, + + { "LED: Note Repeat", 58 | CNT_INTVAL }, + + { "Backlight Display", 59 | CNT_INTVAL } +}; + +static int add_controls(const struct caiaq_controller *c, int num, + struct snd_usb_caiaqdev *cdev) +{ + int i, ret; + struct snd_kcontrol *kc; + + for (i = 0; i < num; i++, c++) { + kcontrol_template.name = c->name; + kcontrol_template.private_value = c->index; + kc = snd_ctl_new1(&kcontrol_template, cdev); + ret = snd_ctl_add(cdev->chip.card, kc); + if (ret < 0) + return ret; + } + + return 0; +} + +int snd_usb_caiaq_control_init(struct snd_usb_caiaqdev *cdev) +{ + int ret = 0; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + ret = add_controls(ak1_controller, + ARRAY_SIZE(ak1_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2): + ret = add_controls(rk2_controller, + ARRAY_SIZE(rk2_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): + ret = add_controls(rk3_controller, + ARRAY_SIZE(rk3_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2): + ret = add_controls(kore_controller, + ARRAY_SIZE(kore_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): + ret = add_controls(a8dj_controller, + ARRAY_SIZE(a8dj_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO4DJ): + ret = add_controls(a4dj_controller, + ARRAY_SIZE(a4dj_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + ret = add_controls(kontrolx1_controller, + ARRAY_SIZE(kontrolx1_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4): + ret = add_controls(kontrols4_controller, + ARRAY_SIZE(kontrols4_controller), cdev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + ret = add_controls(maschine_controller, + ARRAY_SIZE(maschine_controller), cdev); + break; + } + + return ret; +} + diff --git a/sound/usb/caiaq/control.h b/sound/usb/caiaq/control.h new file mode 100644 index 000000000..cb204fd45 --- /dev/null +++ b/sound/usb/caiaq/control.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef CAIAQ_CONTROL_H +#define CAIAQ_CONTROL_H + +int snd_usb_caiaq_control_init(struct snd_usb_caiaqdev *cdev); + +#endif /* CAIAQ_CONTROL_H */ diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c new file mode 100644 index 000000000..49f63f878 --- /dev/null +++ b/sound/usb/caiaq/device.c @@ -0,0 +1,557 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * caiaq.c: ALSA driver for caiaq/NativeInstruments devices + * + * Copyright (c) 2007 Daniel Mack <daniel@caiaq.de> + * Karsten Wiese <fzu@wemgehoertderstaat.de> +*/ + +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/gfp.h> +#include <linux/usb.h> +#include <sound/initval.h> +#include <sound/core.h> +#include <sound/pcm.h> + +#include "device.h" +#include "audio.h" +#include "midi.h" +#include "control.h" +#include "input.h" + +MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); +MODULE_DESCRIPTION("caiaq USB audio"); +MODULE_LICENSE("GPL"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for the caiaq sound device"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for the caiaq soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable the caiaq soundcard."); + +enum { + SAMPLERATE_44100 = 0, + SAMPLERATE_48000 = 1, + SAMPLERATE_96000 = 2, + SAMPLERATE_192000 = 3, + SAMPLERATE_88200 = 4, + SAMPLERATE_INVALID = 0xff +}; + +enum { + DEPTH_NONE = 0, + DEPTH_16 = 1, + DEPTH_24 = 2, + DEPTH_32 = 3 +}; + +static const struct usb_device_id snd_usb_id_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_RIGKONTROL2 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_RIGKONTROL3 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_KORECONTROLLER + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_KORECONTROLLER2 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_AK1 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_AUDIO8DJ + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_SESSIONIO + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_GUITARRIGMOBILE + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_AUDIO4DJ + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_AUDIO2DJ + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_TRAKTORKONTROLX1 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_TRAKTORKONTROLS4 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_TRAKTORAUDIO2 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = USB_VID_NATIVEINSTRUMENTS, + .idProduct = USB_PID_MASCHINECONTROLLER + }, + { /* terminator */ } +}; + +static void usb_ep1_command_reply_dispatch (struct urb* urb) +{ + int ret; + struct device *dev = &urb->dev->dev; + struct snd_usb_caiaqdev *cdev = urb->context; + unsigned char *buf = urb->transfer_buffer; + + if (urb->status || !cdev) { + dev_warn(dev, "received EP1 urb->status = %i\n", urb->status); + return; + } + + switch(buf[0]) { + case EP1_CMD_GET_DEVICE_INFO: + memcpy(&cdev->spec, buf+1, sizeof(struct caiaq_device_spec)); + cdev->spec.fw_version = le16_to_cpu(cdev->spec.fw_version); + dev_dbg(dev, "device spec (firmware %d): audio: %d in, %d out, " + "MIDI: %d in, %d out, data alignment %d\n", + cdev->spec.fw_version, + cdev->spec.num_analog_audio_in, + cdev->spec.num_analog_audio_out, + cdev->spec.num_midi_in, + cdev->spec.num_midi_out, + cdev->spec.data_alignment); + + cdev->spec_received++; + wake_up(&cdev->ep1_wait_queue); + break; + case EP1_CMD_AUDIO_PARAMS: + cdev->audio_parm_answer = buf[1]; + wake_up(&cdev->ep1_wait_queue); + break; + case EP1_CMD_MIDI_READ: + snd_usb_caiaq_midi_handle_input(cdev, buf[1], buf + 3, buf[2]); + break; + case EP1_CMD_READ_IO: + if (cdev->chip.usb_id == + USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ)) { + if (urb->actual_length > sizeof(cdev->control_state)) + urb->actual_length = sizeof(cdev->control_state); + memcpy(cdev->control_state, buf + 1, urb->actual_length); + wake_up(&cdev->ep1_wait_queue); + break; + } +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + fallthrough; + case EP1_CMD_READ_ERP: + case EP1_CMD_READ_ANALOG: + snd_usb_caiaq_input_dispatch(cdev, buf, urb->actual_length); +#endif + break; + } + + cdev->ep1_in_urb.actual_length = 0; + ret = usb_submit_urb(&cdev->ep1_in_urb, GFP_ATOMIC); + if (ret < 0) + dev_err(dev, "unable to submit urb. OOM!?\n"); +} + +int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *cdev, + unsigned char command, + const unsigned char *buffer, + int len) +{ + int actual_len; + struct usb_device *usb_dev = cdev->chip.dev; + + if (!usb_dev) + return -EIO; + + if (len > EP1_BUFSIZE - 1) + len = EP1_BUFSIZE - 1; + + if (buffer && len > 0) + memcpy(cdev->ep1_out_buf+1, buffer, len); + + cdev->ep1_out_buf[0] = command; + return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1), + cdev->ep1_out_buf, len+1, &actual_len, 200); +} + +int snd_usb_caiaq_send_command_bank(struct snd_usb_caiaqdev *cdev, + unsigned char command, + unsigned char bank, + const unsigned char *buffer, + int len) +{ + int actual_len; + struct usb_device *usb_dev = cdev->chip.dev; + + if (!usb_dev) + return -EIO; + + if (len > EP1_BUFSIZE - 2) + len = EP1_BUFSIZE - 2; + + if (buffer && len > 0) + memcpy(cdev->ep1_out_buf+2, buffer, len); + + cdev->ep1_out_buf[0] = command; + cdev->ep1_out_buf[1] = bank; + + return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1), + cdev->ep1_out_buf, len+2, &actual_len, 200); +} + +int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *cdev, + int rate, int depth, int bpp) +{ + int ret; + char tmp[5]; + struct device *dev = caiaqdev_to_dev(cdev); + + switch (rate) { + case 44100: tmp[0] = SAMPLERATE_44100; break; + case 48000: tmp[0] = SAMPLERATE_48000; break; + case 88200: tmp[0] = SAMPLERATE_88200; break; + case 96000: tmp[0] = SAMPLERATE_96000; break; + case 192000: tmp[0] = SAMPLERATE_192000; break; + default: return -EINVAL; + } + + switch (depth) { + case 16: tmp[1] = DEPTH_16; break; + case 24: tmp[1] = DEPTH_24; break; + default: return -EINVAL; + } + + tmp[2] = bpp & 0xff; + tmp[3] = bpp >> 8; + tmp[4] = 1; /* packets per microframe */ + + dev_dbg(dev, "setting audio params: %d Hz, %d bits, %d bpp\n", + rate, depth, bpp); + + cdev->audio_parm_answer = -1; + ret = snd_usb_caiaq_send_command(cdev, EP1_CMD_AUDIO_PARAMS, + tmp, sizeof(tmp)); + + if (ret) + return ret; + + if (!wait_event_timeout(cdev->ep1_wait_queue, + cdev->audio_parm_answer >= 0, HZ)) + return -EPIPE; + + if (cdev->audio_parm_answer != 1) + dev_dbg(dev, "unable to set the device's audio params\n"); + else + cdev->bpp = bpp; + + return cdev->audio_parm_answer == 1 ? 0 : -EINVAL; +} + +int snd_usb_caiaq_set_auto_msg(struct snd_usb_caiaqdev *cdev, + int digital, int analog, int erp) +{ + char tmp[3] = { digital, analog, erp }; + return snd_usb_caiaq_send_command(cdev, EP1_CMD_AUTO_MSG, + tmp, sizeof(tmp)); +} + +static void setup_card(struct snd_usb_caiaqdev *cdev) +{ + int ret; + char val[4]; + struct device *dev = caiaqdev_to_dev(cdev); + + /* device-specific startup specials */ + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2): + /* RigKontrol2 - display centered dash ('-') */ + val[0] = 0x00; + val[1] = 0x00; + val[2] = 0x01; + snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 3); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): + /* RigKontrol2 - display two centered dashes ('--') */ + val[0] = 0x00; + val[1] = 0x40; + val[2] = 0x40; + val[3] = 0x00; + snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 4); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + /* Audio Kontrol 1 - make USB-LED stop blinking */ + val[0] = 0x00; + snd_usb_caiaq_send_command(cdev, EP1_CMD_WRITE_IO, val, 1); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AUDIO8DJ): + /* Audio 8 DJ - trigger read of current settings */ + cdev->control_state[0] = 0xff; + snd_usb_caiaq_set_auto_msg(cdev, 1, 0, 0); + snd_usb_caiaq_send_command(cdev, EP1_CMD_READ_IO, NULL, 0); + + if (!wait_event_timeout(cdev->ep1_wait_queue, + cdev->control_state[0] != 0xff, HZ)) + return; + + /* fix up some defaults */ + if ((cdev->control_state[1] != 2) || + (cdev->control_state[2] != 3) || + (cdev->control_state[4] != 2)) { + cdev->control_state[1] = 2; + cdev->control_state[2] = 3; + cdev->control_state[4] = 2; + snd_usb_caiaq_send_command(cdev, + EP1_CMD_WRITE_IO, cdev->control_state, 6); + } + + break; + } + + if (cdev->spec.num_analog_audio_out + + cdev->spec.num_analog_audio_in + + cdev->spec.num_digital_audio_out + + cdev->spec.num_digital_audio_in > 0) { + ret = snd_usb_caiaq_audio_init(cdev); + if (ret < 0) + dev_err(dev, "Unable to set up audio system (ret=%d)\n", ret); + } + + if (cdev->spec.num_midi_in + + cdev->spec.num_midi_out > 0) { + ret = snd_usb_caiaq_midi_init(cdev); + if (ret < 0) + dev_err(dev, "Unable to set up MIDI system (ret=%d)\n", ret); + } + +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + ret = snd_usb_caiaq_input_init(cdev); + if (ret < 0) + dev_err(dev, "Unable to set up input system (ret=%d)\n", ret); +#endif + + /* finally, register the card and all its sub-instances */ + ret = snd_card_register(cdev->chip.card); + if (ret < 0) { + dev_err(dev, "snd_card_register() returned %d\n", ret); + snd_card_free(cdev->chip.card); + } + + ret = snd_usb_caiaq_control_init(cdev); + if (ret < 0) + dev_err(dev, "Unable to set up control system (ret=%d)\n", ret); +} + +static int create_card(struct usb_device *usb_dev, + struct usb_interface *intf, + struct snd_card **cardp) +{ + int devnum; + int err; + struct snd_card *card; + struct snd_usb_caiaqdev *cdev; + + for (devnum = 0; devnum < SNDRV_CARDS; devnum++) + if (enable[devnum]) + break; + + if (devnum >= SNDRV_CARDS) + return -ENODEV; + + err = snd_card_new(&intf->dev, + index[devnum], id[devnum], THIS_MODULE, + sizeof(struct snd_usb_caiaqdev), &card); + if (err < 0) + return err; + + cdev = caiaqdev(card); + cdev->chip.dev = usb_dev; + cdev->chip.card = card; + cdev->chip.usb_id = USB_ID(le16_to_cpu(usb_dev->descriptor.idVendor), + le16_to_cpu(usb_dev->descriptor.idProduct)); + spin_lock_init(&cdev->spinlock); + + *cardp = card; + return 0; +} + +static int init_card(struct snd_usb_caiaqdev *cdev) +{ + char *c, usbpath[32]; + struct usb_device *usb_dev = cdev->chip.dev; + struct snd_card *card = cdev->chip.card; + struct device *dev = caiaqdev_to_dev(cdev); + int err, len; + + if (usb_set_interface(usb_dev, 0, 1) != 0) { + dev_err(dev, "can't set alt interface.\n"); + return -EIO; + } + + usb_init_urb(&cdev->ep1_in_urb); + usb_init_urb(&cdev->midi_out_urb); + + usb_fill_bulk_urb(&cdev->ep1_in_urb, usb_dev, + usb_rcvbulkpipe(usb_dev, 0x1), + cdev->ep1_in_buf, EP1_BUFSIZE, + usb_ep1_command_reply_dispatch, cdev); + + usb_fill_bulk_urb(&cdev->midi_out_urb, usb_dev, + usb_sndbulkpipe(usb_dev, 0x1), + cdev->midi_out_buf, EP1_BUFSIZE, + snd_usb_caiaq_midi_output_done, cdev); + + /* sanity checks of EPs before actually submitting */ + if (usb_urb_ep_type_check(&cdev->ep1_in_urb) || + usb_urb_ep_type_check(&cdev->midi_out_urb)) { + dev_err(dev, "invalid EPs\n"); + return -EINVAL; + } + + init_waitqueue_head(&cdev->ep1_wait_queue); + init_waitqueue_head(&cdev->prepare_wait_queue); + + if (usb_submit_urb(&cdev->ep1_in_urb, GFP_KERNEL) != 0) + return -EIO; + + err = snd_usb_caiaq_send_command(cdev, EP1_CMD_GET_DEVICE_INFO, NULL, 0); + if (err) + goto err_kill_urb; + + if (!wait_event_timeout(cdev->ep1_wait_queue, cdev->spec_received, HZ)) { + err = -ENODEV; + goto err_kill_urb; + } + + usb_string(usb_dev, usb_dev->descriptor.iManufacturer, + cdev->vendor_name, CAIAQ_USB_STR_LEN); + + usb_string(usb_dev, usb_dev->descriptor.iProduct, + cdev->product_name, CAIAQ_USB_STR_LEN); + + strscpy(card->driver, MODNAME, sizeof(card->driver)); + strscpy(card->shortname, cdev->product_name, sizeof(card->shortname)); + strscpy(card->mixername, cdev->product_name, sizeof(card->mixername)); + + /* if the id was not passed as module option, fill it with a shortened + * version of the product string which does not contain any + * whitespaces */ + + if (*card->id == '\0') { + char id[sizeof(card->id)]; + + memset(id, 0, sizeof(id)); + + for (c = card->shortname, len = 0; + *c && len < sizeof(card->id); c++) + if (*c != ' ') + id[len++] = *c; + + snd_card_set_id(card, id); + } + + usb_make_path(usb_dev, usbpath, sizeof(usbpath)); + snprintf(card->longname, sizeof(card->longname), "%s %s (%s)", + cdev->vendor_name, cdev->product_name, usbpath); + + setup_card(cdev); + return 0; + + err_kill_urb: + usb_kill_urb(&cdev->ep1_in_urb); + return err; +} + +static int snd_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + int ret; + struct snd_card *card = NULL; + struct usb_device *usb_dev = interface_to_usbdev(intf); + + ret = create_card(usb_dev, intf, &card); + + if (ret < 0) + return ret; + + usb_set_intfdata(intf, card); + ret = init_card(caiaqdev(card)); + if (ret < 0) { + dev_err(&usb_dev->dev, "unable to init card! (ret=%d)\n", ret); + snd_card_free(card); + return ret; + } + + return 0; +} + +static void snd_disconnect(struct usb_interface *intf) +{ + struct snd_card *card = usb_get_intfdata(intf); + struct device *dev = intf->usb_dev; + struct snd_usb_caiaqdev *cdev; + + if (!card) + return; + + cdev = caiaqdev(card); + dev_dbg(dev, "%s(%p)\n", __func__, intf); + + snd_card_disconnect(card); + +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + snd_usb_caiaq_input_free(cdev); +#endif + snd_usb_caiaq_audio_free(cdev); + + usb_kill_urb(&cdev->ep1_in_urb); + usb_kill_urb(&cdev->midi_out_urb); + + snd_card_free(card); + usb_reset_device(interface_to_usbdev(intf)); +} + + +MODULE_DEVICE_TABLE(usb, snd_usb_id_table); +static struct usb_driver snd_usb_driver = { + .name = MODNAME, + .probe = snd_probe, + .disconnect = snd_disconnect, + .id_table = snd_usb_id_table, +}; + +module_usb_driver(snd_usb_driver); diff --git a/sound/usb/caiaq/device.h b/sound/usb/caiaq/device.h new file mode 100644 index 000000000..50fea0857 --- /dev/null +++ b/sound/usb/caiaq/device.h @@ -0,0 +1,138 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef CAIAQ_DEVICE_H +#define CAIAQ_DEVICE_H + +#include "../usbaudio.h" + +#define USB_VID_NATIVEINSTRUMENTS 0x17cc + +#define USB_PID_RIGKONTROL2 0x1969 +#define USB_PID_RIGKONTROL3 0x1940 +#define USB_PID_KORECONTROLLER 0x4711 +#define USB_PID_KORECONTROLLER2 0x4712 +#define USB_PID_AK1 0x0815 +#define USB_PID_AUDIO2DJ 0x041c +#define USB_PID_AUDIO4DJ 0x0839 +#define USB_PID_AUDIO8DJ 0x1978 +#define USB_PID_SESSIONIO 0x1915 +#define USB_PID_GUITARRIGMOBILE 0x0d8d +#define USB_PID_TRAKTORKONTROLX1 0x2305 +#define USB_PID_TRAKTORKONTROLS4 0xbaff +#define USB_PID_TRAKTORAUDIO2 0x041d +#define USB_PID_MASCHINECONTROLLER 0x0808 + +#define EP1_BUFSIZE 64 +#define EP4_BUFSIZE 512 +#define CAIAQ_USB_STR_LEN 0xff +#define MAX_STREAMS 32 + +#define MODNAME "snd-usb-caiaq" + +#define EP1_CMD_GET_DEVICE_INFO 0x1 +#define EP1_CMD_READ_ERP 0x2 +#define EP1_CMD_READ_ANALOG 0x3 +#define EP1_CMD_READ_IO 0x4 +#define EP1_CMD_WRITE_IO 0x5 +#define EP1_CMD_MIDI_READ 0x6 +#define EP1_CMD_MIDI_WRITE 0x7 +#define EP1_CMD_AUDIO_PARAMS 0x9 +#define EP1_CMD_AUTO_MSG 0xb +#define EP1_CMD_DIMM_LEDS 0xc + +struct caiaq_device_spec { + unsigned short fw_version; + unsigned char hw_subtype; + unsigned char num_erp; + unsigned char num_analog_in; + unsigned char num_digital_in; + unsigned char num_digital_out; + unsigned char num_analog_audio_out; + unsigned char num_analog_audio_in; + unsigned char num_digital_audio_out; + unsigned char num_digital_audio_in; + unsigned char num_midi_out; + unsigned char num_midi_in; + unsigned char data_alignment; +} __attribute__ ((packed)); + +struct snd_usb_caiaq_cb_info; + +struct snd_usb_caiaqdev { + struct snd_usb_audio chip; + + struct urb ep1_in_urb; + struct urb midi_out_urb; + struct urb **data_urbs_in; + struct urb **data_urbs_out; + struct snd_usb_caiaq_cb_info *data_cb_info; + + unsigned char ep1_in_buf[EP1_BUFSIZE]; + unsigned char ep1_out_buf[EP1_BUFSIZE]; + unsigned char midi_out_buf[EP1_BUFSIZE]; + + struct caiaq_device_spec spec; + spinlock_t spinlock; + wait_queue_head_t ep1_wait_queue; + wait_queue_head_t prepare_wait_queue; + int spec_received, audio_parm_answer; + int midi_out_active; + + char vendor_name[CAIAQ_USB_STR_LEN]; + char product_name[CAIAQ_USB_STR_LEN]; + + int n_streams, n_audio_in, n_audio_out; + int streaming, first_packet, output_running; + int audio_in_buf_pos[MAX_STREAMS]; + int audio_out_buf_pos[MAX_STREAMS]; + int period_in_count[MAX_STREAMS]; + int period_out_count[MAX_STREAMS]; + int input_panic, output_panic, warned; + char *audio_in_buf, *audio_out_buf; + unsigned int samplerates, bpp; + unsigned long outurb_active_mask; + + struct snd_pcm_substream *sub_playback[MAX_STREAMS]; + struct snd_pcm_substream *sub_capture[MAX_STREAMS]; + + /* Controls */ + unsigned char control_state[256]; + unsigned char ep8_out_buf[2]; + + /* Linux input */ +#ifdef CONFIG_SND_USB_CAIAQ_INPUT + struct input_dev *input_dev; + char phys[64]; /* physical device path */ + unsigned short keycode[128]; + struct urb *ep4_in_urb; + unsigned char ep4_in_buf[EP4_BUFSIZE]; +#endif + + /* ALSA */ + struct snd_pcm *pcm; + struct snd_pcm_hardware pcm_info; + struct snd_rawmidi *rmidi; + struct snd_rawmidi_substream *midi_receive_substream; + struct snd_rawmidi_substream *midi_out_substream; +}; + +struct snd_usb_caiaq_cb_info { + struct snd_usb_caiaqdev *cdev; + int index; +}; + +#define caiaqdev(c) ((struct snd_usb_caiaqdev*)(c)->private_data) +#define caiaqdev_to_dev(d) (d->chip.card->dev) + +int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *cdev, int rate, int depth, int bbp); +int snd_usb_caiaq_set_auto_msg (struct snd_usb_caiaqdev *cdev, int digital, int analog, int erp); +int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *cdev, + unsigned char command, + const unsigned char *buffer, + int len); +int snd_usb_caiaq_send_command_bank(struct snd_usb_caiaqdev *cdev, + unsigned char command, + unsigned char bank, + const unsigned char *buffer, + int len); + +#endif /* CAIAQ_DEVICE_H */ diff --git a/sound/usb/caiaq/input.c b/sound/usb/caiaq/input.c new file mode 100644 index 000000000..84f26dce7 --- /dev/null +++ b/sound/usb/caiaq/input.c @@ -0,0 +1,843 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz +*/ + +#include <linux/device.h> +#include <linux/gfp.h> +#include <linux/init.h> +#include <linux/usb.h> +#include <linux/usb/input.h> +#include <sound/core.h> +#include <sound/pcm.h> + +#include "device.h" +#include "input.h" + +static const unsigned short keycode_ak1[] = { KEY_C, KEY_B, KEY_A }; +static const unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4, + KEY_5, KEY_6, KEY_7 }; +static const unsigned short keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4, + KEY_5, KEY_6, KEY_7, KEY_8, KEY_9 }; + +static const unsigned short keycode_kore[] = { + KEY_FN_F1, /* "menu" */ + KEY_FN_F7, /* "lcd backlight */ + KEY_FN_F2, /* "control" */ + KEY_FN_F3, /* "enter" */ + KEY_FN_F4, /* "view" */ + KEY_FN_F5, /* "esc" */ + KEY_FN_F6, /* "sound" */ + KEY_FN_F8, /* array spacer, never triggered. */ + KEY_RIGHT, + KEY_DOWN, + KEY_UP, + KEY_LEFT, + KEY_SOUND, /* "listen" */ + KEY_RECORD, + KEY_PLAYPAUSE, + KEY_STOP, + BTN_4, /* 8 softkeys */ + BTN_3, + BTN_2, + BTN_1, + BTN_8, + BTN_7, + BTN_6, + BTN_5, + KEY_BRL_DOT4, /* touch sensitive knobs */ + KEY_BRL_DOT3, + KEY_BRL_DOT2, + KEY_BRL_DOT1, + KEY_BRL_DOT8, + KEY_BRL_DOT7, + KEY_BRL_DOT6, + KEY_BRL_DOT5 +}; + +#define MASCHINE_BUTTONS (42) +#define MASCHINE_BUTTON(X) ((X) + BTN_MISC) +#define MASCHINE_PADS (16) +#define MASCHINE_PAD(X) ((X) + ABS_PRESSURE) + +static const unsigned short keycode_maschine[] = { + MASCHINE_BUTTON(40), /* mute */ + MASCHINE_BUTTON(39), /* solo */ + MASCHINE_BUTTON(38), /* select */ + MASCHINE_BUTTON(37), /* duplicate */ + MASCHINE_BUTTON(36), /* navigate */ + MASCHINE_BUTTON(35), /* pad mode */ + MASCHINE_BUTTON(34), /* pattern */ + MASCHINE_BUTTON(33), /* scene */ + KEY_RESERVED, /* spacer */ + + MASCHINE_BUTTON(30), /* rec */ + MASCHINE_BUTTON(31), /* erase */ + MASCHINE_BUTTON(32), /* shift */ + MASCHINE_BUTTON(28), /* grid */ + MASCHINE_BUTTON(27), /* > */ + MASCHINE_BUTTON(26), /* < */ + MASCHINE_BUTTON(25), /* restart */ + + MASCHINE_BUTTON(21), /* E */ + MASCHINE_BUTTON(22), /* F */ + MASCHINE_BUTTON(23), /* G */ + MASCHINE_BUTTON(24), /* H */ + MASCHINE_BUTTON(20), /* D */ + MASCHINE_BUTTON(19), /* C */ + MASCHINE_BUTTON(18), /* B */ + MASCHINE_BUTTON(17), /* A */ + + MASCHINE_BUTTON(0), /* control */ + MASCHINE_BUTTON(2), /* browse */ + MASCHINE_BUTTON(4), /* < */ + MASCHINE_BUTTON(6), /* snap */ + MASCHINE_BUTTON(7), /* autowrite */ + MASCHINE_BUTTON(5), /* > */ + MASCHINE_BUTTON(3), /* sampling */ + MASCHINE_BUTTON(1), /* step */ + + MASCHINE_BUTTON(15), /* 8 softkeys */ + MASCHINE_BUTTON(14), + MASCHINE_BUTTON(13), + MASCHINE_BUTTON(12), + MASCHINE_BUTTON(11), + MASCHINE_BUTTON(10), + MASCHINE_BUTTON(9), + MASCHINE_BUTTON(8), + + MASCHINE_BUTTON(16), /* note repeat */ + MASCHINE_BUTTON(29) /* play */ +}; + +#define KONTROLX1_INPUTS (40) +#define KONTROLS4_BUTTONS (12 * 8) +#define KONTROLS4_AXIS (46) + +#define KONTROLS4_BUTTON(X) ((X) + BTN_MISC) +#define KONTROLS4_ABS(X) ((X) + ABS_HAT0X) + +#define DEG90 (range / 2) +#define DEG180 (range) +#define DEG270 (DEG90 + DEG180) +#define DEG360 (DEG180 * 2) +#define HIGH_PEAK (268) +#define LOW_PEAK (-7) + +/* some of these devices have endless rotation potentiometers + * built in which use two tapers, 90 degrees phase shifted. + * this algorithm decodes them to one single value, ranging + * from 0 to 999 */ +static unsigned int decode_erp(unsigned char a, unsigned char b) +{ + int weight_a, weight_b; + int pos_a, pos_b; + int ret; + int range = HIGH_PEAK - LOW_PEAK; + int mid_value = (HIGH_PEAK + LOW_PEAK) / 2; + + weight_b = abs(mid_value - a) - (range / 2 - 100) / 2; + + if (weight_b < 0) + weight_b = 0; + + if (weight_b > 100) + weight_b = 100; + + weight_a = 100 - weight_b; + + if (a < mid_value) { + /* 0..90 and 270..360 degrees */ + pos_b = b - LOW_PEAK + DEG270; + if (pos_b >= DEG360) + pos_b -= DEG360; + } else + /* 90..270 degrees */ + pos_b = HIGH_PEAK - b + DEG90; + + + if (b > mid_value) + /* 0..180 degrees */ + pos_a = a - LOW_PEAK; + else + /* 180..360 degrees */ + pos_a = HIGH_PEAK - a + DEG180; + + /* interpolate both slider values, depending on weight factors */ + /* 0..99 x DEG360 */ + ret = pos_a * weight_a + pos_b * weight_b; + + /* normalize to 0..999 */ + ret *= 10; + ret /= DEG360; + + if (ret < 0) + ret += 1000; + + if (ret >= 1000) + ret -= 1000; + + return ret; +} + +#undef DEG90 +#undef DEG180 +#undef DEG270 +#undef DEG360 +#undef HIGH_PEAK +#undef LOW_PEAK + +static inline void snd_caiaq_input_report_abs(struct snd_usb_caiaqdev *cdev, + int axis, const unsigned char *buf, + int offset) +{ + input_report_abs(cdev->input_dev, axis, + (buf[offset * 2] << 8) | buf[offset * 2 + 1]); +} + +static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *cdev, + const unsigned char *buf, + unsigned int len) +{ + struct input_dev *input_dev = cdev->input_dev; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2): + snd_caiaq_input_report_abs(cdev, ABS_X, buf, 2); + snd_caiaq_input_report_abs(cdev, ABS_Y, buf, 0); + snd_caiaq_input_report_abs(cdev, ABS_Z, buf, 1); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2): + snd_caiaq_input_report_abs(cdev, ABS_X, buf, 0); + snd_caiaq_input_report_abs(cdev, ABS_Y, buf, 1); + snd_caiaq_input_report_abs(cdev, ABS_Z, buf, 2); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + snd_caiaq_input_report_abs(cdev, ABS_HAT0X, buf, 4); + snd_caiaq_input_report_abs(cdev, ABS_HAT0Y, buf, 2); + snd_caiaq_input_report_abs(cdev, ABS_HAT1X, buf, 6); + snd_caiaq_input_report_abs(cdev, ABS_HAT1Y, buf, 1); + snd_caiaq_input_report_abs(cdev, ABS_HAT2X, buf, 7); + snd_caiaq_input_report_abs(cdev, ABS_HAT2Y, buf, 0); + snd_caiaq_input_report_abs(cdev, ABS_HAT3X, buf, 5); + snd_caiaq_input_report_abs(cdev, ABS_HAT3Y, buf, 3); + break; + } + + input_sync(input_dev); +} + +static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *cdev, + const char *buf, unsigned int len) +{ + struct input_dev *input_dev = cdev->input_dev; + int i; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + i = decode_erp(buf[0], buf[1]); + input_report_abs(input_dev, ABS_X, i); + input_sync(input_dev); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2): + i = decode_erp(buf[7], buf[5]); + input_report_abs(input_dev, ABS_HAT0X, i); + i = decode_erp(buf[12], buf[14]); + input_report_abs(input_dev, ABS_HAT0Y, i); + i = decode_erp(buf[15], buf[13]); + input_report_abs(input_dev, ABS_HAT1X, i); + i = decode_erp(buf[0], buf[2]); + input_report_abs(input_dev, ABS_HAT1Y, i); + i = decode_erp(buf[3], buf[1]); + input_report_abs(input_dev, ABS_HAT2X, i); + i = decode_erp(buf[8], buf[10]); + input_report_abs(input_dev, ABS_HAT2Y, i); + i = decode_erp(buf[11], buf[9]); + input_report_abs(input_dev, ABS_HAT3X, i); + i = decode_erp(buf[4], buf[6]); + input_report_abs(input_dev, ABS_HAT3Y, i); + input_sync(input_dev); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + /* 4 under the left screen */ + input_report_abs(input_dev, ABS_HAT0X, decode_erp(buf[21], buf[20])); + input_report_abs(input_dev, ABS_HAT0Y, decode_erp(buf[15], buf[14])); + input_report_abs(input_dev, ABS_HAT1X, decode_erp(buf[9], buf[8])); + input_report_abs(input_dev, ABS_HAT1Y, decode_erp(buf[3], buf[2])); + + /* 4 under the right screen */ + input_report_abs(input_dev, ABS_HAT2X, decode_erp(buf[19], buf[18])); + input_report_abs(input_dev, ABS_HAT2Y, decode_erp(buf[13], buf[12])); + input_report_abs(input_dev, ABS_HAT3X, decode_erp(buf[7], buf[6])); + input_report_abs(input_dev, ABS_HAT3Y, decode_erp(buf[1], buf[0])); + + /* volume */ + input_report_abs(input_dev, ABS_RX, decode_erp(buf[17], buf[16])); + /* tempo */ + input_report_abs(input_dev, ABS_RY, decode_erp(buf[11], buf[10])); + /* swing */ + input_report_abs(input_dev, ABS_RZ, decode_erp(buf[5], buf[4])); + + input_sync(input_dev); + break; + } +} + +static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *cdev, + unsigned char *buf, unsigned int len) +{ + struct input_dev *input_dev = cdev->input_dev; + unsigned short *keycode = input_dev->keycode; + int i; + + if (!keycode) + return; + + if (input_dev->id.product == USB_PID_RIGKONTROL2) + for (i = 0; i < len; i++) + buf[i] = ~buf[i]; + + for (i = 0; i < input_dev->keycodemax && i < len * 8; i++) + input_report_key(input_dev, keycode[i], + buf[i / 8] & (1 << (i % 8))); + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2): + input_report_abs(cdev->input_dev, ABS_MISC, 255 - buf[4]); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + /* rotary encoders */ + input_report_abs(cdev->input_dev, ABS_X, buf[5] & 0xf); + input_report_abs(cdev->input_dev, ABS_Y, buf[5] >> 4); + input_report_abs(cdev->input_dev, ABS_Z, buf[6] & 0xf); + input_report_abs(cdev->input_dev, ABS_MISC, buf[6] >> 4); + break; + } + + input_sync(input_dev); +} + +#define TKS4_MSGBLOCK_SIZE 16 + +static void snd_usb_caiaq_tks4_dispatch(struct snd_usb_caiaqdev *cdev, + const unsigned char *buf, + unsigned int len) +{ + struct device *dev = caiaqdev_to_dev(cdev); + + while (len) { + unsigned int i, block_id = (buf[0] << 8) | buf[1]; + + switch (block_id) { + case 0: + /* buttons */ + for (i = 0; i < KONTROLS4_BUTTONS; i++) + input_report_key(cdev->input_dev, KONTROLS4_BUTTON(i), + (buf[4 + (i / 8)] >> (i % 8)) & 1); + break; + + case 1: + /* left wheel */ + input_report_abs(cdev->input_dev, KONTROLS4_ABS(36), buf[9] | ((buf[8] & 0x3) << 8)); + /* right wheel */ + input_report_abs(cdev->input_dev, KONTROLS4_ABS(37), buf[13] | ((buf[12] & 0x3) << 8)); + + /* rotary encoders */ + input_report_abs(cdev->input_dev, KONTROLS4_ABS(38), buf[3] & 0xf); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(39), buf[4] >> 4); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(40), buf[4] & 0xf); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(41), buf[5] >> 4); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(42), buf[5] & 0xf); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(43), buf[6] >> 4); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(44), buf[6] & 0xf); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(45), buf[7] >> 4); + input_report_abs(cdev->input_dev, KONTROLS4_ABS(46), buf[7] & 0xf); + + break; + case 2: + /* Volume Fader Channel D */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(0), buf, 1); + /* Volume Fader Channel B */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(1), buf, 2); + /* Volume Fader Channel A */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(2), buf, 3); + /* Volume Fader Channel C */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(3), buf, 4); + /* Loop Volume */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(4), buf, 6); + /* Crossfader */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(7), buf, 7); + + break; + + case 3: + /* Tempo Fader R */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(6), buf, 3); + /* Tempo Fader L */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(5), buf, 4); + /* Mic Volume */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(8), buf, 6); + /* Cue Mix */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(9), buf, 7); + + break; + + case 4: + /* Wheel distance sensor L */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(10), buf, 1); + /* Wheel distance sensor R */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(11), buf, 2); + /* Channel D EQ - Filter */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(12), buf, 3); + /* Channel D EQ - Low */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(13), buf, 4); + /* Channel D EQ - Mid */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(14), buf, 5); + /* Channel D EQ - Hi */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(15), buf, 6); + /* FX2 - dry/wet */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(16), buf, 7); + + break; + + case 5: + /* FX2 - 1 */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(17), buf, 1); + /* FX2 - 2 */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(18), buf, 2); + /* FX2 - 3 */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(19), buf, 3); + /* Channel B EQ - Filter */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(20), buf, 4); + /* Channel B EQ - Low */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(21), buf, 5); + /* Channel B EQ - Mid */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(22), buf, 6); + /* Channel B EQ - Hi */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(23), buf, 7); + + break; + + case 6: + /* Channel A EQ - Filter */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(24), buf, 1); + /* Channel A EQ - Low */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(25), buf, 2); + /* Channel A EQ - Mid */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(26), buf, 3); + /* Channel A EQ - Hi */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(27), buf, 4); + /* Channel C EQ - Filter */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(28), buf, 5); + /* Channel C EQ - Low */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(29), buf, 6); + /* Channel C EQ - Mid */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(30), buf, 7); + + break; + + case 7: + /* Channel C EQ - Hi */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(31), buf, 1); + /* FX1 - wet/dry */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(32), buf, 2); + /* FX1 - 1 */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(33), buf, 3); + /* FX1 - 2 */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(34), buf, 4); + /* FX1 - 3 */ + snd_caiaq_input_report_abs(cdev, KONTROLS4_ABS(35), buf, 5); + + break; + + default: + dev_dbg(dev, "%s(): bogus block (id %d)\n", + __func__, block_id); + return; + } + + len -= TKS4_MSGBLOCK_SIZE; + buf += TKS4_MSGBLOCK_SIZE; + } + + input_sync(cdev->input_dev); +} + +#define MASCHINE_MSGBLOCK_SIZE 2 + +static void snd_usb_caiaq_maschine_dispatch(struct snd_usb_caiaqdev *cdev, + const unsigned char *buf, + unsigned int len) +{ + unsigned int i, pad_id; + __le16 *pressure = (__le16 *) buf; + + for (i = 0; i < MASCHINE_PADS; i++) { + pad_id = le16_to_cpu(*pressure) >> 12; + input_report_abs(cdev->input_dev, MASCHINE_PAD(pad_id), + le16_to_cpu(*pressure) & 0xfff); + pressure++; + } + + input_sync(cdev->input_dev); +} + +static void snd_usb_caiaq_ep4_reply_dispatch(struct urb *urb) +{ + struct snd_usb_caiaqdev *cdev = urb->context; + unsigned char *buf = urb->transfer_buffer; + struct device *dev = &urb->dev->dev; + int ret; + + if (urb->status || !cdev || urb != cdev->ep4_in_urb) + return; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + if (urb->actual_length < 24) + goto requeue; + + if (buf[0] & 0x3) + snd_caiaq_input_read_io(cdev, buf + 1, 7); + + if (buf[0] & 0x4) + snd_caiaq_input_read_analog(cdev, buf + 8, 16); + + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4): + snd_usb_caiaq_tks4_dispatch(cdev, buf, urb->actual_length); + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + if (urb->actual_length < (MASCHINE_PADS * MASCHINE_MSGBLOCK_SIZE)) + goto requeue; + + snd_usb_caiaq_maschine_dispatch(cdev, buf, urb->actual_length); + break; + } + +requeue: + cdev->ep4_in_urb->actual_length = 0; + ret = usb_submit_urb(cdev->ep4_in_urb, GFP_ATOMIC); + if (ret < 0) + dev_err(dev, "unable to submit urb. OOM!?\n"); +} + +static int snd_usb_caiaq_input_open(struct input_dev *idev) +{ + struct snd_usb_caiaqdev *cdev = input_get_drvdata(idev); + + if (!cdev) + return -EINVAL; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + if (usb_submit_urb(cdev->ep4_in_urb, GFP_KERNEL) != 0) + return -EIO; + break; + } + + return 0; +} + +static void snd_usb_caiaq_input_close(struct input_dev *idev) +{ + struct snd_usb_caiaqdev *cdev = input_get_drvdata(idev); + + if (!cdev) + return; + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + usb_kill_urb(cdev->ep4_in_urb); + break; + } +} + +void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *cdev, + char *buf, + unsigned int len) +{ + if (!cdev->input_dev || len < 1) + return; + + switch (buf[0]) { + case EP1_CMD_READ_ANALOG: + snd_caiaq_input_read_analog(cdev, buf + 1, len - 1); + break; + case EP1_CMD_READ_ERP: + snd_caiaq_input_read_erp(cdev, buf + 1, len - 1); + break; + case EP1_CMD_READ_IO: + snd_caiaq_input_read_io(cdev, buf + 1, len - 1); + break; + } +} + +int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *cdev) +{ + struct usb_device *usb_dev = cdev->chip.dev; + struct input_dev *input; + int i, ret = 0; + + input = input_allocate_device(); + if (!input) + return -ENOMEM; + + usb_make_path(usb_dev, cdev->phys, sizeof(cdev->phys)); + strlcat(cdev->phys, "/input0", sizeof(cdev->phys)); + + input->name = cdev->product_name; + input->phys = cdev->phys; + usb_to_input_id(usb_dev, &input->id); + input->dev.parent = &usb_dev->dev; + + input_set_drvdata(input, cdev); + + switch (cdev->chip.usb_id) { + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2): + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) | + BIT_MASK(ABS_Z); + BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_rk2)); + memcpy(cdev->keycode, keycode_rk2, sizeof(keycode_rk2)); + input->keycodemax = ARRAY_SIZE(keycode_rk2); + input_set_abs_params(input, ABS_X, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10); + snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 0); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3): + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) | + BIT_MASK(ABS_Z); + BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_rk3)); + memcpy(cdev->keycode, keycode_rk3, sizeof(keycode_rk3)); + input->keycodemax = ARRAY_SIZE(keycode_rk3); + input_set_abs_params(input, ABS_X, 0, 1024, 0, 10); + input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10); + input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10); + snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 0); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1): + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input->absbit[0] = BIT_MASK(ABS_X); + BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_ak1)); + memcpy(cdev->keycode, keycode_ak1, sizeof(keycode_ak1)); + input->keycodemax = ARRAY_SIZE(keycode_ak1); + input_set_abs_params(input, ABS_X, 0, 999, 0, 10); + snd_usb_caiaq_set_auto_msg(cdev, 1, 0, 5); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER): + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2): + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) | + BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) | + BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) | + BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) | + BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) | + BIT_MASK(ABS_Z); + input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC); + BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_kore)); + memcpy(cdev->keycode, keycode_kore, sizeof(keycode_kore)); + input->keycodemax = ARRAY_SIZE(keycode_kore); + input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_X, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_MISC, 0, 255, 0, 1); + snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5); + break; + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1): + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) | + BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) | + BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) | + BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) | + BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) | + BIT_MASK(ABS_Z); + input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC); + BUILD_BUG_ON(sizeof(cdev->keycode) < KONTROLX1_INPUTS); + for (i = 0; i < KONTROLX1_INPUTS; i++) + cdev->keycode[i] = BTN_MISC + i; + input->keycodemax = KONTROLX1_INPUTS; + + /* analog potentiometers */ + input_set_abs_params(input, ABS_HAT0X, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_HAT0Y, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_HAT1X, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_HAT1Y, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_HAT2X, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_HAT2Y, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_HAT3X, 0, 4096, 0, 10); + input_set_abs_params(input, ABS_HAT3Y, 0, 4096, 0, 10); + + /* rotary encoders */ + input_set_abs_params(input, ABS_X, 0, 0xf, 0, 1); + input_set_abs_params(input, ABS_Y, 0, 0xf, 0, 1); + input_set_abs_params(input, ABS_Z, 0, 0xf, 0, 1); + input_set_abs_params(input, ABS_MISC, 0, 0xf, 0, 1); + + cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!cdev->ep4_in_urb) { + ret = -ENOMEM; + goto exit_free_idev; + } + + usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev, + usb_rcvbulkpipe(usb_dev, 0x4), + cdev->ep4_in_buf, EP4_BUFSIZE, + snd_usb_caiaq_ep4_reply_dispatch, cdev); + ret = usb_urb_ep_type_check(cdev->ep4_in_urb); + if (ret < 0) + goto exit_free_idev; + + snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5); + + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLS4): + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + BUILD_BUG_ON(sizeof(cdev->keycode) < KONTROLS4_BUTTONS); + for (i = 0; i < KONTROLS4_BUTTONS; i++) + cdev->keycode[i] = KONTROLS4_BUTTON(i); + input->keycodemax = KONTROLS4_BUTTONS; + + for (i = 0; i < KONTROLS4_AXIS; i++) { + int axis = KONTROLS4_ABS(i); + input->absbit[BIT_WORD(axis)] |= BIT_MASK(axis); + } + + /* 36 analog potentiometers and faders */ + for (i = 0; i < 36; i++) + input_set_abs_params(input, KONTROLS4_ABS(i), 0, 0xfff, 0, 10); + + /* 2 encoder wheels */ + input_set_abs_params(input, KONTROLS4_ABS(36), 0, 0x3ff, 0, 1); + input_set_abs_params(input, KONTROLS4_ABS(37), 0, 0x3ff, 0, 1); + + /* 9 rotary encoders */ + for (i = 0; i < 9; i++) + input_set_abs_params(input, KONTROLS4_ABS(38+i), 0, 0xf, 0, 1); + + cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!cdev->ep4_in_urb) { + ret = -ENOMEM; + goto exit_free_idev; + } + + usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev, + usb_rcvbulkpipe(usb_dev, 0x4), + cdev->ep4_in_buf, EP4_BUFSIZE, + snd_usb_caiaq_ep4_reply_dispatch, cdev); + ret = usb_urb_ep_type_check(cdev->ep4_in_urb); + if (ret < 0) + goto exit_free_idev; + + snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5); + + break; + + case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER): + input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) | + BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) | + BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) | + BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) | + BIT_MASK(ABS_RX) | BIT_MASK(ABS_RY) | + BIT_MASK(ABS_RZ); + + BUILD_BUG_ON(sizeof(cdev->keycode) < sizeof(keycode_maschine)); + memcpy(cdev->keycode, keycode_maschine, sizeof(keycode_maschine)); + input->keycodemax = ARRAY_SIZE(keycode_maschine); + + for (i = 0; i < MASCHINE_PADS; i++) { + input->absbit[0] |= MASCHINE_PAD(i); + input_set_abs_params(input, MASCHINE_PAD(i), 0, 0xfff, 5, 10); + } + + input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10); + input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10); + input_set_abs_params(input, ABS_RX, 0, 999, 0, 10); + input_set_abs_params(input, ABS_RY, 0, 999, 0, 10); + input_set_abs_params(input, ABS_RZ, 0, 999, 0, 10); + + cdev->ep4_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!cdev->ep4_in_urb) { + ret = -ENOMEM; + goto exit_free_idev; + } + + usb_fill_bulk_urb(cdev->ep4_in_urb, usb_dev, + usb_rcvbulkpipe(usb_dev, 0x4), + cdev->ep4_in_buf, EP4_BUFSIZE, + snd_usb_caiaq_ep4_reply_dispatch, cdev); + ret = usb_urb_ep_type_check(cdev->ep4_in_urb); + if (ret < 0) + goto exit_free_idev; + + snd_usb_caiaq_set_auto_msg(cdev, 1, 10, 5); + break; + + default: + /* no input methods supported on this device */ + ret = -EINVAL; + goto exit_free_idev; + } + + input->open = snd_usb_caiaq_input_open; + input->close = snd_usb_caiaq_input_close; + input->keycode = cdev->keycode; + input->keycodesize = sizeof(unsigned short); + for (i = 0; i < input->keycodemax; i++) + __set_bit(cdev->keycode[i], input->keybit); + + cdev->input_dev = input; + + ret = input_register_device(input); + if (ret < 0) + goto exit_free_idev; + + return 0; + +exit_free_idev: + input_free_device(input); + cdev->input_dev = NULL; + return ret; +} + +void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *cdev) +{ + if (!cdev || !cdev->input_dev) + return; + + usb_kill_urb(cdev->ep4_in_urb); + usb_free_urb(cdev->ep4_in_urb); + cdev->ep4_in_urb = NULL; + + input_unregister_device(cdev->input_dev); + cdev->input_dev = NULL; +} diff --git a/sound/usb/caiaq/input.h b/sound/usb/caiaq/input.h new file mode 100644 index 000000000..c42891e7b --- /dev/null +++ b/sound/usb/caiaq/input.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef CAIAQ_INPUT_H +#define CAIAQ_INPUT_H + +void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *cdev, char *buf, unsigned int len); +int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *cdev); +void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *cdev); + +#endif diff --git a/sound/usb/caiaq/midi.c b/sound/usb/caiaq/midi.c new file mode 100644 index 000000000..c656d0162 --- /dev/null +++ b/sound/usb/caiaq/midi.c @@ -0,0 +1,162 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2006,2007 Daniel Mack +*/ + +#include <linux/device.h> +#include <linux/usb.h> +#include <linux/gfp.h> +#include <sound/rawmidi.h> +#include <sound/core.h> +#include <sound/pcm.h> + +#include "device.h" +#include "midi.h" + +static int snd_usb_caiaq_midi_input_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int snd_usb_caiaq_midi_input_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void snd_usb_caiaq_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct snd_usb_caiaqdev *cdev = substream->rmidi->private_data; + + if (!cdev) + return; + + cdev->midi_receive_substream = up ? substream : NULL; +} + + +static int snd_usb_caiaq_midi_output_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int snd_usb_caiaq_midi_output_close(struct snd_rawmidi_substream *substream) +{ + struct snd_usb_caiaqdev *cdev = substream->rmidi->private_data; + if (cdev->midi_out_active) { + usb_kill_urb(&cdev->midi_out_urb); + cdev->midi_out_active = 0; + } + return 0; +} + +static void snd_usb_caiaq_midi_send(struct snd_usb_caiaqdev *cdev, + struct snd_rawmidi_substream *substream) +{ + int len, ret; + struct device *dev = caiaqdev_to_dev(cdev); + + cdev->midi_out_buf[0] = EP1_CMD_MIDI_WRITE; + cdev->midi_out_buf[1] = 0; /* port */ + len = snd_rawmidi_transmit(substream, cdev->midi_out_buf + 3, + EP1_BUFSIZE - 3); + + if (len <= 0) + return; + + cdev->midi_out_buf[2] = len; + cdev->midi_out_urb.transfer_buffer_length = len+3; + + ret = usb_submit_urb(&cdev->midi_out_urb, GFP_ATOMIC); + if (ret < 0) + dev_err(dev, + "snd_usb_caiaq_midi_send(%p): usb_submit_urb() failed," + "ret=%d, len=%d\n", substream, ret, len); + else + cdev->midi_out_active = 1; +} + +static void snd_usb_caiaq_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct snd_usb_caiaqdev *cdev = substream->rmidi->private_data; + + if (up) { + cdev->midi_out_substream = substream; + if (!cdev->midi_out_active) + snd_usb_caiaq_midi_send(cdev, substream); + } else { + cdev->midi_out_substream = NULL; + } +} + + +static const struct snd_rawmidi_ops snd_usb_caiaq_midi_output = +{ + .open = snd_usb_caiaq_midi_output_open, + .close = snd_usb_caiaq_midi_output_close, + .trigger = snd_usb_caiaq_midi_output_trigger, +}; + +static const struct snd_rawmidi_ops snd_usb_caiaq_midi_input = +{ + .open = snd_usb_caiaq_midi_input_open, + .close = snd_usb_caiaq_midi_input_close, + .trigger = snd_usb_caiaq_midi_input_trigger, +}; + +void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *cdev, + int port, const char *buf, int len) +{ + if (!cdev->midi_receive_substream) + return; + + snd_rawmidi_receive(cdev->midi_receive_substream, buf, len); +} + +int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *device) +{ + int ret; + struct snd_rawmidi *rmidi; + + ret = snd_rawmidi_new(device->chip.card, device->product_name, 0, + device->spec.num_midi_out, + device->spec.num_midi_in, + &rmidi); + + if (ret < 0) + return ret; + + strscpy(rmidi->name, device->product_name, sizeof(rmidi->name)); + + rmidi->info_flags = SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->private_data = device; + + if (device->spec.num_midi_out > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &snd_usb_caiaq_midi_output); + } + + if (device->spec.num_midi_in > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &snd_usb_caiaq_midi_input); + } + + device->rmidi = rmidi; + + return 0; +} + +void snd_usb_caiaq_midi_output_done(struct urb* urb) +{ + struct snd_usb_caiaqdev *cdev = urb->context; + + cdev->midi_out_active = 0; + if (urb->status != 0) + return; + + if (!cdev->midi_out_substream) + return; + + snd_usb_caiaq_midi_send(cdev, cdev->midi_out_substream); +} diff --git a/sound/usb/caiaq/midi.h b/sound/usb/caiaq/midi.h new file mode 100644 index 000000000..a6ae0c224 --- /dev/null +++ b/sound/usb/caiaq/midi.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef CAIAQ_MIDI_H +#define CAIAQ_MIDI_H + +int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *cdev); +void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *cdev, + int port, const char *buf, int len); +void snd_usb_caiaq_midi_output_done(struct urb *urb); + +#endif /* CAIAQ_MIDI_H */ diff --git a/sound/usb/card.c b/sound/usb/card.c new file mode 100644 index 000000000..26268ffb8 --- /dev/null +++ b/sound/usb/card.c @@ -0,0 +1,1164 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (Tentative) USB Audio Driver for ALSA + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + * + * Many codes borrowed from audio.c by + * Alan Cox (alan@lxorguk.ukuu.org.uk) + * Thomas Sailer (sailer@ife.ee.ethz.ch) + * + * Audio Class 3.0 support by Ruslan Bilovol <ruslan.bilovol@gmail.com> + * + * NOTES: + * + * - the linked URBs would be preferred but not used so far because of + * the instability of unlinking. + * - type II is not supported properly. there is no device which supports + * this type *correctly*. SB extigy looks as if it supports, but it's + * indeed an AC3 stream packed in SPDIF frames (i.e. no real AC3 stream). + */ + + +#include <linux/bitops.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/ctype.h> +#include <linux/usb.h> +#include <linux/moduleparam.h> +#include <linux/mutex.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> +#include <linux/usb/audio-v3.h> +#include <linux/module.h> + +#include <sound/control.h> +#include <sound/core.h> +#include <sound/info.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> + +#include "usbaudio.h" +#include "card.h" +#include "midi.h" +#include "mixer.h" +#include "proc.h" +#include "quirks.h" +#include "endpoint.h" +#include "helper.h" +#include "pcm.h" +#include "format.h" +#include "power.h" +#include "stream.h" +#include "media.h" + +MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); +MODULE_DESCRIPTION("USB Audio"); +MODULE_LICENSE("GPL"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card */ +/* Vendor/product IDs for this card */ +static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; +static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 }; +static int device_setup[SNDRV_CARDS]; /* device parameter for this card */ +static bool ignore_ctl_error; +static bool autoclock = true; +static bool lowlatency = true; +static char *quirk_alias[SNDRV_CARDS]; +static char *delayed_register[SNDRV_CARDS]; +static bool implicit_fb[SNDRV_CARDS]; +static unsigned int quirk_flags[SNDRV_CARDS]; + +bool snd_usb_use_vmalloc = true; +bool snd_usb_skip_validation; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for the USB audio adapter."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for the USB audio adapter."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable USB audio adapter."); +module_param_array(vid, int, NULL, 0444); +MODULE_PARM_DESC(vid, "Vendor ID for the USB audio device."); +module_param_array(pid, int, NULL, 0444); +MODULE_PARM_DESC(pid, "Product ID for the USB audio device."); +module_param_array(device_setup, int, NULL, 0444); +MODULE_PARM_DESC(device_setup, "Specific device setup (if needed)."); +module_param(ignore_ctl_error, bool, 0444); +MODULE_PARM_DESC(ignore_ctl_error, + "Ignore errors from USB controller for mixer interfaces."); +module_param(autoclock, bool, 0444); +MODULE_PARM_DESC(autoclock, "Enable auto-clock selection for UAC2 devices (default: yes)."); +module_param(lowlatency, bool, 0444); +MODULE_PARM_DESC(lowlatency, "Enable low latency playback (default: yes)."); +module_param_array(quirk_alias, charp, NULL, 0444); +MODULE_PARM_DESC(quirk_alias, "Quirk aliases, e.g. 0123abcd:5678beef."); +module_param_array(delayed_register, charp, NULL, 0444); +MODULE_PARM_DESC(delayed_register, "Quirk for delayed registration, given by id:iface, e.g. 0123abcd:4."); +module_param_array(implicit_fb, bool, NULL, 0444); +MODULE_PARM_DESC(implicit_fb, "Apply generic implicit feedback sync mode."); +module_param_array(quirk_flags, uint, NULL, 0444); +MODULE_PARM_DESC(quirk_flags, "Driver quirk bit flags."); +module_param_named(use_vmalloc, snd_usb_use_vmalloc, bool, 0444); +MODULE_PARM_DESC(use_vmalloc, "Use vmalloc for PCM intermediate buffers (default: yes)."); +module_param_named(skip_validation, snd_usb_skip_validation, bool, 0444); +MODULE_PARM_DESC(skip_validation, "Skip unit descriptor validation (default: no)."); + +/* + * we keep the snd_usb_audio_t instances by ourselves for merging + * the all interfaces on the same card as one sound device. + */ + +static DEFINE_MUTEX(register_mutex); +static struct snd_usb_audio *usb_chip[SNDRV_CARDS]; +static struct usb_driver usb_audio_driver; + +/* + * disconnect streams + * called from usb_audio_disconnect() + */ +static void snd_usb_stream_disconnect(struct snd_usb_stream *as) +{ + int idx; + struct snd_usb_substream *subs; + + for (idx = 0; idx < 2; idx++) { + subs = &as->substream[idx]; + if (!subs->num_formats) + continue; + subs->data_endpoint = NULL; + subs->sync_endpoint = NULL; + } +} + +static int snd_usb_create_stream(struct snd_usb_audio *chip, int ctrlif, int interface) +{ + struct usb_device *dev = chip->dev; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + struct usb_interface *iface = usb_ifnum_to_if(dev, interface); + + if (!iface) { + dev_err(&dev->dev, "%u:%d : does not exist\n", + ctrlif, interface); + return -EINVAL; + } + + alts = &iface->altsetting[0]; + altsd = get_iface_desc(alts); + + /* + * Android with both accessory and audio interfaces enabled gets the + * interface numbers wrong. + */ + if ((chip->usb_id == USB_ID(0x18d1, 0x2d04) || + chip->usb_id == USB_ID(0x18d1, 0x2d05)) && + interface == 0 && + altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC && + altsd->bInterfaceSubClass == USB_SUBCLASS_VENDOR_SPEC) { + interface = 2; + iface = usb_ifnum_to_if(dev, interface); + if (!iface) + return -EINVAL; + alts = &iface->altsetting[0]; + altsd = get_iface_desc(alts); + } + + if (usb_interface_claimed(iface)) { + dev_dbg(&dev->dev, "%d:%d: skipping, already claimed\n", + ctrlif, interface); + return -EINVAL; + } + + if ((altsd->bInterfaceClass == USB_CLASS_AUDIO || + altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC) && + altsd->bInterfaceSubClass == USB_SUBCLASS_MIDISTREAMING) { + int err = __snd_usbmidi_create(chip->card, iface, + &chip->midi_list, NULL, + chip->usb_id); + if (err < 0) { + dev_err(&dev->dev, + "%u:%d: cannot create sequencer device\n", + ctrlif, interface); + return -EINVAL; + } + return usb_driver_claim_interface(&usb_audio_driver, iface, + USB_AUDIO_IFACE_UNUSED); + } + + if ((altsd->bInterfaceClass != USB_CLASS_AUDIO && + altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) || + altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING) { + dev_dbg(&dev->dev, + "%u:%d: skipping non-supported interface %d\n", + ctrlif, interface, altsd->bInterfaceClass); + /* skip non-supported classes */ + return -EINVAL; + } + + if (snd_usb_get_speed(dev) == USB_SPEED_LOW) { + dev_err(&dev->dev, "low speed audio streaming not supported\n"); + return -EINVAL; + } + + if (! snd_usb_parse_audio_interface(chip, interface)) { + usb_set_interface(dev, interface, 0); /* reset the current interface */ + return usb_driver_claim_interface(&usb_audio_driver, iface, + USB_AUDIO_IFACE_UNUSED); + } + + return 0; +} + +/* + * parse audio control descriptor and create pcm/midi streams + */ +static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif) +{ + struct usb_device *dev = chip->dev; + struct usb_host_interface *host_iface; + struct usb_interface_descriptor *altsd; + int i, protocol; + + /* find audiocontrol interface */ + host_iface = &usb_ifnum_to_if(dev, ctrlif)->altsetting[0]; + altsd = get_iface_desc(host_iface); + protocol = altsd->bInterfaceProtocol; + + switch (protocol) { + default: + dev_warn(&dev->dev, + "unknown interface protocol %#02x, assuming v1\n", + protocol); + fallthrough; + + case UAC_VERSION_1: { + struct uac1_ac_header_descriptor *h1; + int rest_bytes; + + h1 = snd_usb_find_csint_desc(host_iface->extra, + host_iface->extralen, + NULL, UAC_HEADER); + if (!h1 || h1->bLength < sizeof(*h1)) { + dev_err(&dev->dev, "cannot find UAC_HEADER\n"); + return -EINVAL; + } + + rest_bytes = (void *)(host_iface->extra + + host_iface->extralen) - (void *)h1; + + /* just to be sure -- this shouldn't hit at all */ + if (rest_bytes <= 0) { + dev_err(&dev->dev, "invalid control header\n"); + return -EINVAL; + } + + if (rest_bytes < sizeof(*h1)) { + dev_err(&dev->dev, "too short v1 buffer descriptor\n"); + return -EINVAL; + } + + if (!h1->bInCollection) { + dev_info(&dev->dev, "skipping empty audio interface (v1)\n"); + return -EINVAL; + } + + if (rest_bytes < h1->bLength) { + dev_err(&dev->dev, "invalid buffer length (v1)\n"); + return -EINVAL; + } + + if (h1->bLength < sizeof(*h1) + h1->bInCollection) { + dev_err(&dev->dev, "invalid UAC_HEADER (v1)\n"); + return -EINVAL; + } + + for (i = 0; i < h1->bInCollection; i++) + snd_usb_create_stream(chip, ctrlif, h1->baInterfaceNr[i]); + + break; + } + + case UAC_VERSION_2: + case UAC_VERSION_3: { + struct usb_interface_assoc_descriptor *assoc = + usb_ifnum_to_if(dev, ctrlif)->intf_assoc; + + if (!assoc) { + /* + * Firmware writers cannot count to three. So to find + * the IAD on the NuForce UDH-100, also check the next + * interface. + */ + struct usb_interface *iface = + usb_ifnum_to_if(dev, ctrlif + 1); + if (iface && + iface->intf_assoc && + iface->intf_assoc->bFunctionClass == USB_CLASS_AUDIO && + iface->intf_assoc->bFunctionProtocol == UAC_VERSION_2) + assoc = iface->intf_assoc; + } + + if (!assoc) { + dev_err(&dev->dev, "Audio class v2/v3 interfaces need an interface association\n"); + return -EINVAL; + } + + if (protocol == UAC_VERSION_3) { + int badd = assoc->bFunctionSubClass; + + if (badd != UAC3_FUNCTION_SUBCLASS_FULL_ADC_3_0 && + (badd < UAC3_FUNCTION_SUBCLASS_GENERIC_IO || + badd > UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE)) { + dev_err(&dev->dev, + "Unsupported UAC3 BADD profile\n"); + return -EINVAL; + } + + chip->badd_profile = badd; + } + + for (i = 0; i < assoc->bInterfaceCount; i++) { + int intf = assoc->bFirstInterface + i; + + if (intf != ctrlif) + snd_usb_create_stream(chip, ctrlif, intf); + } + + break; + } + } + + return 0; +} + +/* + * Profile name preset table + */ +struct usb_audio_device_name { + u32 id; + const char *vendor_name; + const char *product_name; + const char *profile_name; /* override card->longname */ +}; + +#define PROFILE_NAME(vid, pid, vendor, product, profile) \ + { .id = USB_ID(vid, pid), .vendor_name = (vendor), \ + .product_name = (product), .profile_name = (profile) } +#define DEVICE_NAME(vid, pid, vendor, product) \ + PROFILE_NAME(vid, pid, vendor, product, NULL) + +/* vendor/product and profile name presets, sorted in device id order */ +static const struct usb_audio_device_name usb_audio_names[] = { + /* HP Thunderbolt Dock Audio Headset */ + PROFILE_NAME(0x03f0, 0x0269, "HP", "Thunderbolt Dock Audio Headset", + "HP-Thunderbolt-Dock-Audio-Headset"), + /* HP Thunderbolt Dock Audio Module */ + PROFILE_NAME(0x03f0, 0x0567, "HP", "Thunderbolt Dock Audio Module", + "HP-Thunderbolt-Dock-Audio-Module"), + + /* Two entries for Gigabyte TRX40 Aorus Master: + * TRX40 Aorus Master has two USB-audio devices, one for the front + * headphone with ESS SABRE9218 DAC chip, while another for the rest + * I/O (the rear panel and the front mic) with Realtek ALC1220-VB. + * Here we provide two distinct names for making UCM profiles easier. + */ + PROFILE_NAME(0x0414, 0xa000, "Gigabyte", "Aorus Master Front Headphone", + "Gigabyte-Aorus-Master-Front-Headphone"), + PROFILE_NAME(0x0414, 0xa001, "Gigabyte", "Aorus Master Main Audio", + "Gigabyte-Aorus-Master-Main-Audio"), + + /* Gigabyte TRX40 Aorus Pro WiFi */ + PROFILE_NAME(0x0414, 0xa002, + "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"), + + /* Creative/E-Mu devices */ + DEVICE_NAME(0x041e, 0x3010, "Creative Labs", "Sound Blaster MP3+"), + /* Creative/Toshiba Multimedia Center SB-0500 */ + DEVICE_NAME(0x041e, 0x3048, "Toshiba", "SB-0500"), + + DEVICE_NAME(0x046d, 0x0990, "Logitech, Inc.", "QuickCam Pro 9000"), + + DEVICE_NAME(0x05e1, 0x0408, "Syntek", "STK1160"), + DEVICE_NAME(0x05e1, 0x0480, "Hauppauge", "Woodbury"), + + /* ASUS ROG Zenith II: this machine has also two devices, one for + * the front headphone and another for the rest + */ + PROFILE_NAME(0x0b05, 0x1915, "ASUS", "Zenith II Front Headphone", + "Zenith-II-Front-Headphone"), + PROFILE_NAME(0x0b05, 0x1916, "ASUS", "Zenith II Main Audio", + "Zenith-II-Main-Audio"), + + /* ASUS ROG Strix */ + PROFILE_NAME(0x0b05, 0x1917, + "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"), + /* ASUS PRIME TRX40 PRO-S */ + PROFILE_NAME(0x0b05, 0x1918, + "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"), + + /* Dell WD15 Dock */ + PROFILE_NAME(0x0bda, 0x4014, "Dell", "WD15 Dock", "Dell-WD15-Dock"), + /* Dell WD19 Dock */ + PROFILE_NAME(0x0bda, 0x402e, "Dell", "WD19 Dock", "Dell-WD15-Dock"), + + DEVICE_NAME(0x0ccd, 0x0028, "TerraTec", "Aureon5.1MkII"), + + /* + * The original product_name is "USB Sound Device", however this name + * is also used by the CM106 based cards, so make it unique. + */ + DEVICE_NAME(0x0d8c, 0x0102, NULL, "ICUSBAUDIO7D"), + DEVICE_NAME(0x0d8c, 0x0103, NULL, "Audio Advantage MicroII"), + + /* MSI TRX40 Creator */ + PROFILE_NAME(0x0db0, 0x0d64, + "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"), + /* MSI TRX40 */ + PROFILE_NAME(0x0db0, 0x543d, + "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"), + + DEVICE_NAME(0x0fd9, 0x0008, "Hauppauge", "HVR-950Q"), + + /* Stanton/N2IT Final Scratch v1 device ('Scratchamp') */ + DEVICE_NAME(0x103d, 0x0100, "Stanton", "ScratchAmp"), + DEVICE_NAME(0x103d, 0x0101, "Stanton", "ScratchAmp"), + + /* aka. Serato Scratch Live DJ Box */ + DEVICE_NAME(0x13e5, 0x0001, "Rane", "SL-1"), + + /* Lenovo ThinkStation P620 Rear Line-in, Line-out and Microphone */ + PROFILE_NAME(0x17aa, 0x1046, "Lenovo", "ThinkStation P620 Rear", + "Lenovo-ThinkStation-P620-Rear"), + /* Lenovo ThinkStation P620 Internal Speaker + Front Headset */ + PROFILE_NAME(0x17aa, 0x104d, "Lenovo", "ThinkStation P620 Main", + "Lenovo-ThinkStation-P620-Main"), + + /* Asrock TRX40 Creator */ + PROFILE_NAME(0x26ce, 0x0a01, + "Realtek", "ALC1220-VB-DT", "Realtek-ALC1220-VB-Desktop"), + + DEVICE_NAME(0x2040, 0x7200, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x7201, "Hauppauge", "HVR-950Q-MXL"), + DEVICE_NAME(0x2040, 0x7210, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x7211, "Hauppauge", "HVR-950Q-MXL"), + DEVICE_NAME(0x2040, 0x7213, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x7217, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x721b, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x721e, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x721f, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x7240, "Hauppauge", "HVR-850"), + DEVICE_NAME(0x2040, 0x7260, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x7270, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x7280, "Hauppauge", "HVR-950Q"), + DEVICE_NAME(0x2040, 0x7281, "Hauppauge", "HVR-950Q-MXL"), + DEVICE_NAME(0x2040, 0x8200, "Hauppauge", "Woodbury"), + + { } /* terminator */ +}; + +static const struct usb_audio_device_name * +lookup_device_name(u32 id) +{ + static const struct usb_audio_device_name *p; + + for (p = usb_audio_names; p->id; p++) + if (p->id == id) + return p; + return NULL; +} + +/* + * free the chip instance + * + * here we have to do not much, since pcm and controls are already freed + * + */ + +static void snd_usb_audio_free(struct snd_card *card) +{ + struct snd_usb_audio *chip = card->private_data; + + snd_usb_endpoint_free_all(chip); + + mutex_destroy(&chip->mutex); + if (!atomic_read(&chip->shutdown)) + dev_set_drvdata(&chip->dev->dev, NULL); +} + +static void usb_audio_make_shortname(struct usb_device *dev, + struct snd_usb_audio *chip, + const struct snd_usb_audio_quirk *quirk) +{ + struct snd_card *card = chip->card; + const struct usb_audio_device_name *preset; + const char *s = NULL; + + preset = lookup_device_name(chip->usb_id); + if (preset && preset->product_name) + s = preset->product_name; + else if (quirk && quirk->product_name) + s = quirk->product_name; + if (s && *s) { + strscpy(card->shortname, s, sizeof(card->shortname)); + return; + } + + /* retrieve the device string as shortname */ + if (!dev->descriptor.iProduct || + usb_string(dev, dev->descriptor.iProduct, + card->shortname, sizeof(card->shortname)) <= 0) { + /* no name available from anywhere, so use ID */ + sprintf(card->shortname, "USB Device %#04x:%#04x", + USB_ID_VENDOR(chip->usb_id), + USB_ID_PRODUCT(chip->usb_id)); + } + + strim(card->shortname); +} + +static void usb_audio_make_longname(struct usb_device *dev, + struct snd_usb_audio *chip, + const struct snd_usb_audio_quirk *quirk) +{ + struct snd_card *card = chip->card; + const struct usb_audio_device_name *preset; + const char *s = NULL; + int len; + + preset = lookup_device_name(chip->usb_id); + + /* shortcut - if any pre-defined string is given, use it */ + if (preset && preset->profile_name) + s = preset->profile_name; + if (s && *s) { + strscpy(card->longname, s, sizeof(card->longname)); + return; + } + + if (preset && preset->vendor_name) + s = preset->vendor_name; + else if (quirk && quirk->vendor_name) + s = quirk->vendor_name; + *card->longname = 0; + if (s && *s) { + strscpy(card->longname, s, sizeof(card->longname)); + } else { + /* retrieve the vendor and device strings as longname */ + if (dev->descriptor.iManufacturer) + usb_string(dev, dev->descriptor.iManufacturer, + card->longname, sizeof(card->longname)); + /* we don't really care if there isn't any vendor string */ + } + if (*card->longname) { + strim(card->longname); + if (*card->longname) + strlcat(card->longname, " ", sizeof(card->longname)); + } + + strlcat(card->longname, card->shortname, sizeof(card->longname)); + + len = strlcat(card->longname, " at ", sizeof(card->longname)); + + if (len < sizeof(card->longname)) + usb_make_path(dev, card->longname + len, sizeof(card->longname) - len); + + switch (snd_usb_get_speed(dev)) { + case USB_SPEED_LOW: + strlcat(card->longname, ", low speed", sizeof(card->longname)); + break; + case USB_SPEED_FULL: + strlcat(card->longname, ", full speed", sizeof(card->longname)); + break; + case USB_SPEED_HIGH: + strlcat(card->longname, ", high speed", sizeof(card->longname)); + break; + case USB_SPEED_SUPER: + strlcat(card->longname, ", super speed", sizeof(card->longname)); + break; + case USB_SPEED_SUPER_PLUS: + strlcat(card->longname, ", super speed plus", sizeof(card->longname)); + break; + default: + break; + } +} + +/* + * create a chip instance and set its names. + */ +static int snd_usb_audio_create(struct usb_interface *intf, + struct usb_device *dev, int idx, + const struct snd_usb_audio_quirk *quirk, + unsigned int usb_id, + struct snd_usb_audio **rchip) +{ + struct snd_card *card; + struct snd_usb_audio *chip; + int err; + char component[14]; + + *rchip = NULL; + + switch (snd_usb_get_speed(dev)) { + case USB_SPEED_LOW: + case USB_SPEED_FULL: + case USB_SPEED_HIGH: + case USB_SPEED_WIRELESS: + case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: + break; + default: + dev_err(&dev->dev, "unknown device speed %d\n", snd_usb_get_speed(dev)); + return -ENXIO; + } + + err = snd_card_new(&intf->dev, index[idx], id[idx], THIS_MODULE, + sizeof(*chip), &card); + if (err < 0) { + dev_err(&dev->dev, "cannot create card instance %d\n", idx); + return err; + } + + chip = card->private_data; + mutex_init(&chip->mutex); + init_waitqueue_head(&chip->shutdown_wait); + chip->index = idx; + chip->dev = dev; + chip->card = card; + chip->setup = device_setup[idx]; + chip->generic_implicit_fb = implicit_fb[idx]; + chip->autoclock = autoclock; + chip->lowlatency = lowlatency; + atomic_set(&chip->active, 1); /* avoid autopm during probing */ + atomic_set(&chip->usage_count, 0); + atomic_set(&chip->shutdown, 0); + + chip->usb_id = usb_id; + INIT_LIST_HEAD(&chip->pcm_list); + INIT_LIST_HEAD(&chip->ep_list); + INIT_LIST_HEAD(&chip->iface_ref_list); + INIT_LIST_HEAD(&chip->clock_ref_list); + INIT_LIST_HEAD(&chip->midi_list); + INIT_LIST_HEAD(&chip->mixer_list); + + if (quirk_flags[idx]) + chip->quirk_flags = quirk_flags[idx]; + else + snd_usb_init_quirk_flags(chip); + + card->private_free = snd_usb_audio_free; + + strcpy(card->driver, "USB-Audio"); + sprintf(component, "USB%04x:%04x", + USB_ID_VENDOR(chip->usb_id), USB_ID_PRODUCT(chip->usb_id)); + snd_component_add(card, component); + + usb_audio_make_shortname(dev, chip, quirk); + usb_audio_make_longname(dev, chip, quirk); + + snd_usb_audio_create_proc(chip); + + *rchip = chip; + return 0; +} + +/* look for a matching quirk alias id */ +static bool get_alias_id(struct usb_device *dev, unsigned int *id) +{ + int i; + unsigned int src, dst; + + for (i = 0; i < ARRAY_SIZE(quirk_alias); i++) { + if (!quirk_alias[i] || + sscanf(quirk_alias[i], "%x:%x", &src, &dst) != 2 || + src != *id) + continue; + dev_info(&dev->dev, + "device (%04x:%04x): applying quirk alias %04x:%04x\n", + USB_ID_VENDOR(*id), USB_ID_PRODUCT(*id), + USB_ID_VENDOR(dst), USB_ID_PRODUCT(dst)); + *id = dst; + return true; + } + + return false; +} + +static int check_delayed_register_option(struct snd_usb_audio *chip) +{ + int i; + unsigned int id, inum; + + for (i = 0; i < ARRAY_SIZE(delayed_register); i++) { + if (delayed_register[i] && + sscanf(delayed_register[i], "%x:%x", &id, &inum) == 2 && + id == chip->usb_id) + return inum; + } + + return -1; +} + +static const struct usb_device_id usb_audio_ids[]; /* defined below */ + +/* look for the last interface that matches with our ids and remember it */ +static void find_last_interface(struct snd_usb_audio *chip) +{ + struct usb_host_config *config = chip->dev->actconfig; + struct usb_interface *intf; + int i; + + if (!config) + return; + for (i = 0; i < config->desc.bNumInterfaces; i++) { + intf = config->interface[i]; + if (usb_match_id(intf, usb_audio_ids)) + chip->last_iface = intf->altsetting[0].desc.bInterfaceNumber; + } + usb_audio_dbg(chip, "Found last interface = %d\n", chip->last_iface); +} + +/* look for the corresponding quirk */ +static const struct snd_usb_audio_quirk * +get_alias_quirk(struct usb_device *dev, unsigned int id) +{ + const struct usb_device_id *p; + + for (p = usb_audio_ids; p->match_flags; p++) { + /* FIXME: this checks only vendor:product pair in the list */ + if ((p->match_flags & USB_DEVICE_ID_MATCH_DEVICE) == + USB_DEVICE_ID_MATCH_DEVICE && + p->idVendor == USB_ID_VENDOR(id) && + p->idProduct == USB_ID_PRODUCT(id)) + return (const struct snd_usb_audio_quirk *)p->driver_info; + } + + return NULL; +} + +/* register card if we reach to the last interface or to the specified + * one given via option + */ +static int try_to_register_card(struct snd_usb_audio *chip, int ifnum) +{ + if (check_delayed_register_option(chip) == ifnum || + chip->last_iface == ifnum || + usb_interface_claimed(usb_ifnum_to_if(chip->dev, chip->last_iface))) + return snd_card_register(chip->card); + return 0; +} + +/* + * probe the active usb device + * + * note that this can be called multiple times per a device, when it + * includes multiple audio control interfaces. + * + * thus we check the usb device pointer and creates the card instance + * only at the first time. the successive calls of this function will + * append the pcm interface to the corresponding card. + */ +static int usb_audio_probe(struct usb_interface *intf, + const struct usb_device_id *usb_id) +{ + struct usb_device *dev = interface_to_usbdev(intf); + const struct snd_usb_audio_quirk *quirk = + (const struct snd_usb_audio_quirk *)usb_id->driver_info; + struct snd_usb_audio *chip; + int i, err; + struct usb_host_interface *alts; + int ifnum; + u32 id; + + alts = &intf->altsetting[0]; + ifnum = get_iface_desc(alts)->bInterfaceNumber; + id = USB_ID(le16_to_cpu(dev->descriptor.idVendor), + le16_to_cpu(dev->descriptor.idProduct)); + if (get_alias_id(dev, &id)) + quirk = get_alias_quirk(dev, id); + if (quirk && quirk->ifnum >= 0 && ifnum != quirk->ifnum) + return -ENXIO; + if (quirk && quirk->ifnum == QUIRK_NODEV_INTERFACE) + return -ENODEV; + + err = snd_usb_apply_boot_quirk(dev, intf, quirk, id); + if (err < 0) + return err; + + /* + * found a config. now register to ALSA + */ + + /* check whether it's already registered */ + chip = NULL; + mutex_lock(®ister_mutex); + for (i = 0; i < SNDRV_CARDS; i++) { + if (usb_chip[i] && usb_chip[i]->dev == dev) { + if (atomic_read(&usb_chip[i]->shutdown)) { + dev_err(&dev->dev, "USB device is in the shutdown state, cannot create a card instance\n"); + err = -EIO; + goto __error; + } + chip = usb_chip[i]; + atomic_inc(&chip->active); /* avoid autopm */ + break; + } + } + if (! chip) { + err = snd_usb_apply_boot_quirk_once(dev, intf, quirk, id); + if (err < 0) + goto __error; + + /* it's a fresh one. + * now look for an empty slot and create a new card instance + */ + for (i = 0; i < SNDRV_CARDS; i++) + if (!usb_chip[i] && + (vid[i] == -1 || vid[i] == USB_ID_VENDOR(id)) && + (pid[i] == -1 || pid[i] == USB_ID_PRODUCT(id))) { + if (enable[i]) { + err = snd_usb_audio_create(intf, dev, i, quirk, + id, &chip); + if (err < 0) + goto __error; + break; + } else if (vid[i] != -1 || pid[i] != -1) { + dev_info(&dev->dev, + "device (%04x:%04x) is disabled\n", + USB_ID_VENDOR(id), + USB_ID_PRODUCT(id)); + err = -ENOENT; + goto __error; + } + } + if (!chip) { + dev_err(&dev->dev, "no available usb audio device\n"); + err = -ENODEV; + goto __error; + } + find_last_interface(chip); + } + + if (chip->num_interfaces >= MAX_CARD_INTERFACES) { + dev_info(&dev->dev, "Too many interfaces assigned to the single USB-audio card\n"); + err = -EINVAL; + goto __error; + } + + dev_set_drvdata(&dev->dev, chip); + + if (ignore_ctl_error) + chip->quirk_flags |= QUIRK_FLAG_IGNORE_CTL_ERROR; + + if (chip->quirk_flags & QUIRK_FLAG_DISABLE_AUTOSUSPEND) + usb_disable_autosuspend(interface_to_usbdev(intf)); + + /* + * For devices with more than one control interface, we assume the + * first contains the audio controls. We might need a more specific + * check here in the future. + */ + if (!chip->ctrl_intf) + chip->ctrl_intf = alts; + + err = 1; /* continue */ + if (quirk && quirk->ifnum != QUIRK_NO_INTERFACE) { + /* need some special handlings */ + err = snd_usb_create_quirk(chip, intf, &usb_audio_driver, quirk); + if (err < 0) + goto __error; + } + + if (err > 0) { + /* create normal USB audio interfaces */ + err = snd_usb_create_streams(chip, ifnum); + if (err < 0) + goto __error; + err = snd_usb_create_mixer(chip, ifnum); + if (err < 0) + goto __error; + } + + if (chip->need_delayed_register) { + dev_info(&dev->dev, + "Found post-registration device assignment: %08x:%02x\n", + chip->usb_id, ifnum); + chip->need_delayed_register = false; /* clear again */ + } + + err = try_to_register_card(chip, ifnum); + if (err < 0) + goto __error_no_register; + + if (chip->quirk_flags & QUIRK_FLAG_SHARE_MEDIA_DEVICE) { + /* don't want to fail when snd_media_device_create() fails */ + snd_media_device_create(chip, intf); + } + + if (quirk) + chip->quirk_type = quirk->type; + + usb_chip[chip->index] = chip; + chip->intf[chip->num_interfaces] = intf; + chip->num_interfaces++; + usb_set_intfdata(intf, chip); + atomic_dec(&chip->active); + mutex_unlock(®ister_mutex); + return 0; + + __error: + /* in the case of error in secondary interface, still try to register */ + if (chip) + try_to_register_card(chip, ifnum); + + __error_no_register: + if (chip) { + /* chip->active is inside the chip->card object, + * decrement before memory is possibly returned. + */ + atomic_dec(&chip->active); + if (!chip->num_interfaces) + snd_card_free(chip->card); + } + mutex_unlock(®ister_mutex); + return err; +} + +/* + * we need to take care of counter, since disconnection can be called also + * many times as well as usb_audio_probe(). + */ +static void usb_audio_disconnect(struct usb_interface *intf) +{ + struct snd_usb_audio *chip = usb_get_intfdata(intf); + struct snd_card *card; + struct list_head *p; + + if (chip == USB_AUDIO_IFACE_UNUSED) + return; + + card = chip->card; + + mutex_lock(®ister_mutex); + if (atomic_inc_return(&chip->shutdown) == 1) { + struct snd_usb_stream *as; + struct snd_usb_endpoint *ep; + struct usb_mixer_interface *mixer; + + /* wait until all pending tasks done; + * they are protected by snd_usb_lock_shutdown() + */ + wait_event(chip->shutdown_wait, + !atomic_read(&chip->usage_count)); + snd_card_disconnect(card); + /* release the pcm resources */ + list_for_each_entry(as, &chip->pcm_list, list) { + snd_usb_stream_disconnect(as); + } + /* release the endpoint resources */ + list_for_each_entry(ep, &chip->ep_list, list) { + snd_usb_endpoint_release(ep); + } + /* release the midi resources */ + list_for_each(p, &chip->midi_list) { + snd_usbmidi_disconnect(p); + } + /* + * Nice to check quirk && quirk->shares_media_device and + * then call the snd_media_device_delete(). Don't have + * access to the quirk here. snd_media_device_delete() + * accesses mixer_list + */ + snd_media_device_delete(chip); + + /* release mixer resources */ + list_for_each_entry(mixer, &chip->mixer_list, list) { + snd_usb_mixer_disconnect(mixer); + } + } + + if (chip->quirk_flags & QUIRK_FLAG_DISABLE_AUTOSUSPEND) + usb_enable_autosuspend(interface_to_usbdev(intf)); + + chip->num_interfaces--; + if (chip->num_interfaces <= 0) { + usb_chip[chip->index] = NULL; + mutex_unlock(®ister_mutex); + snd_card_free_when_closed(card); + } else { + mutex_unlock(®ister_mutex); + } +} + +/* lock the shutdown (disconnect) task and autoresume */ +int snd_usb_lock_shutdown(struct snd_usb_audio *chip) +{ + int err; + + atomic_inc(&chip->usage_count); + if (atomic_read(&chip->shutdown)) { + err = -EIO; + goto error; + } + err = snd_usb_autoresume(chip); + if (err < 0) + goto error; + return 0; + + error: + if (atomic_dec_and_test(&chip->usage_count)) + wake_up(&chip->shutdown_wait); + return err; +} + +/* autosuspend and unlock the shutdown */ +void snd_usb_unlock_shutdown(struct snd_usb_audio *chip) +{ + snd_usb_autosuspend(chip); + if (atomic_dec_and_test(&chip->usage_count)) + wake_up(&chip->shutdown_wait); +} + +int snd_usb_autoresume(struct snd_usb_audio *chip) +{ + int i, err; + + if (atomic_read(&chip->shutdown)) + return -EIO; + if (atomic_inc_return(&chip->active) != 1) + return 0; + + for (i = 0; i < chip->num_interfaces; i++) { + err = usb_autopm_get_interface(chip->intf[i]); + if (err < 0) { + /* rollback */ + while (--i >= 0) + usb_autopm_put_interface(chip->intf[i]); + atomic_dec(&chip->active); + return err; + } + } + return 0; +} + +void snd_usb_autosuspend(struct snd_usb_audio *chip) +{ + int i; + + if (atomic_read(&chip->shutdown)) + return; + if (!atomic_dec_and_test(&chip->active)) + return; + + for (i = 0; i < chip->num_interfaces; i++) + usb_autopm_put_interface(chip->intf[i]); +} + +static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct snd_usb_audio *chip = usb_get_intfdata(intf); + struct snd_usb_stream *as; + struct snd_usb_endpoint *ep; + struct usb_mixer_interface *mixer; + struct list_head *p; + + if (chip == USB_AUDIO_IFACE_UNUSED) + return 0; + + if (!chip->num_suspended_intf++) { + list_for_each_entry(as, &chip->pcm_list, list) + snd_usb_pcm_suspend(as); + list_for_each_entry(ep, &chip->ep_list, list) + snd_usb_endpoint_suspend(ep); + list_for_each(p, &chip->midi_list) + snd_usbmidi_suspend(p); + list_for_each_entry(mixer, &chip->mixer_list, list) + snd_usb_mixer_suspend(mixer); + } + + if (!PMSG_IS_AUTO(message) && !chip->system_suspend) { + snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); + chip->system_suspend = chip->num_suspended_intf; + } + + return 0; +} + +static int usb_audio_resume(struct usb_interface *intf) +{ + struct snd_usb_audio *chip = usb_get_intfdata(intf); + struct snd_usb_stream *as; + struct usb_mixer_interface *mixer; + struct list_head *p; + int err = 0; + + if (chip == USB_AUDIO_IFACE_UNUSED) + return 0; + + atomic_inc(&chip->active); /* avoid autopm */ + if (chip->num_suspended_intf > 1) + goto out; + + list_for_each_entry(as, &chip->pcm_list, list) { + err = snd_usb_pcm_resume(as); + if (err < 0) + goto err_out; + } + + /* + * ALSA leaves material resumption to user space + * we just notify and restart the mixers + */ + list_for_each_entry(mixer, &chip->mixer_list, list) { + err = snd_usb_mixer_resume(mixer); + if (err < 0) + goto err_out; + } + + list_for_each(p, &chip->midi_list) { + snd_usbmidi_resume(p); + } + + out: + if (chip->num_suspended_intf == chip->system_suspend) { + snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); + chip->system_suspend = 0; + } + chip->num_suspended_intf--; + +err_out: + atomic_dec(&chip->active); /* allow autopm after this point */ + return err; +} + +static const struct usb_device_id usb_audio_ids [] = { +#include "quirks-table.h" + { .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS), + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL }, + { } /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(usb, usb_audio_ids); + +/* + * entry point for linux usb interface + */ + +static struct usb_driver usb_audio_driver = { + .name = "snd-usb-audio", + .probe = usb_audio_probe, + .disconnect = usb_audio_disconnect, + .suspend = usb_audio_suspend, + .resume = usb_audio_resume, + .reset_resume = usb_audio_resume, + .id_table = usb_audio_ids, + .supports_autosuspend = 1, +}; + +module_usb_driver(usb_audio_driver); diff --git a/sound/usb/card.h b/sound/usb/card.h new file mode 100644 index 000000000..6ec95b2ed --- /dev/null +++ b/sound/usb/card.h @@ -0,0 +1,210 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_CARD_H +#define __USBAUDIO_CARD_H + +#define MAX_NR_RATES 1024 +#define MAX_PACKS 6 /* per URB */ +#define MAX_PACKS_HS (MAX_PACKS * 8) /* in high speed mode */ +#define MAX_URBS 12 +#define SYNC_URBS 4 /* always four urbs for sync */ +#define MAX_QUEUE 18 /* try not to exceed this queue length, in ms */ + +struct audioformat { + struct list_head list; + u64 formats; /* ALSA format bits */ + unsigned int channels; /* # channels */ + unsigned int fmt_type; /* USB audio format type (1-3) */ + unsigned int fmt_bits; /* number of significant bits */ + unsigned int frame_size; /* samples per frame for non-audio */ + unsigned char iface; /* interface number */ + unsigned char altsetting; /* corresponding alternate setting */ + unsigned char ep_idx; /* endpoint array index */ + unsigned char altset_idx; /* array index of alternate setting */ + unsigned char attributes; /* corresponding attributes of cs endpoint */ + unsigned char endpoint; /* endpoint */ + unsigned char ep_attr; /* endpoint attributes */ + bool implicit_fb; /* implicit feedback endpoint */ + unsigned char sync_ep; /* sync endpoint number */ + unsigned char sync_iface; /* sync EP interface */ + unsigned char sync_altsetting; /* sync EP alternate setting */ + unsigned char sync_ep_idx; /* sync EP array index */ + unsigned char datainterval; /* log_2 of data packet interval */ + unsigned char protocol; /* UAC_VERSION_1/2/3 */ + unsigned int maxpacksize; /* max. packet size */ + unsigned int rates; /* rate bitmasks */ + unsigned int rate_min, rate_max; /* min/max rates */ + unsigned int nr_rates; /* number of rate table entries */ + unsigned int *rate_table; /* rate table */ + unsigned char clock; /* associated clock */ + struct snd_pcm_chmap_elem *chmap; /* (optional) channel map */ + bool dsd_dop; /* add DOP headers in case of DSD samples */ + bool dsd_bitrev; /* reverse the bits of each DSD sample */ + bool dsd_raw; /* altsetting is raw DSD */ +}; + +struct snd_usb_substream; +struct snd_usb_iface_ref; +struct snd_usb_clock_ref; +struct snd_usb_endpoint; +struct snd_usb_power_domain; + +struct snd_urb_ctx { + struct urb *urb; + unsigned int buffer_size; /* size of data buffer, if data URB */ + struct snd_usb_substream *subs; + struct snd_usb_endpoint *ep; + int index; /* index for urb array */ + int packets; /* number of packets per urb */ + int queued; /* queued data bytes by this urb */ + int packet_size[MAX_PACKS_HS]; /* size of packets for next submission */ + struct list_head ready_list; +}; + +struct snd_usb_endpoint { + struct snd_usb_audio *chip; + struct snd_usb_iface_ref *iface_ref; + struct snd_usb_clock_ref *clock_ref; + + int opened; /* open refcount; protect with chip->mutex */ + atomic_t running; /* running status */ + int ep_num; /* the referenced endpoint number */ + int type; /* SND_USB_ENDPOINT_TYPE_* */ + + unsigned char iface; /* interface number */ + unsigned char altsetting; /* corresponding alternate setting */ + unsigned char ep_idx; /* endpoint array index */ + + atomic_t state; /* running state */ + + int (*prepare_data_urb) (struct snd_usb_substream *subs, + struct urb *urb, + bool in_stream_lock); + void (*retire_data_urb) (struct snd_usb_substream *subs, + struct urb *urb); + + struct snd_usb_substream *data_subs; + struct snd_usb_endpoint *sync_source; + struct snd_usb_endpoint *sync_sink; + + struct snd_urb_ctx urb[MAX_URBS]; + + struct snd_usb_packet_info { + uint32_t packet_size[MAX_PACKS_HS]; + int packets; + } next_packet[MAX_URBS]; + unsigned int next_packet_head; /* ring buffer offset to read */ + unsigned int next_packet_queued; /* queued items in the ring buffer */ + struct list_head ready_playback_urbs; /* playback URB FIFO for implicit fb */ + + unsigned int nurbs; /* # urbs */ + unsigned long active_mask; /* bitmask of active urbs */ + unsigned long unlink_mask; /* bitmask of unlinked urbs */ + atomic_t submitted_urbs; /* currently submitted urbs */ + char *syncbuf; /* sync buffer for all sync URBs */ + dma_addr_t sync_dma; /* DMA address of syncbuf */ + + unsigned int pipe; /* the data i/o pipe */ + unsigned int packsize[2]; /* small/large packet sizes in samples */ + unsigned int sample_rem; /* remainder from division fs/pps */ + unsigned int sample_accum; /* sample accumulator */ + unsigned int pps; /* packets per second */ + unsigned int freqn; /* nominal sampling rate in fs/fps in Q16.16 format */ + unsigned int freqm; /* momentary sampling rate in fs/fps in Q16.16 format */ + int freqshift; /* how much to shift the feedback value to get Q16.16 */ + unsigned int freqmax; /* maximum sampling rate, used for buffer management */ + unsigned int phase; /* phase accumulator */ + unsigned int maxpacksize; /* max packet size in bytes */ + unsigned int maxframesize; /* max packet size in frames */ + unsigned int max_urb_frames; /* max URB size in frames */ + unsigned int curpacksize; /* current packet size in bytes (for capture) */ + unsigned int curframesize; /* current packet size in frames (for capture) */ + unsigned int syncmaxsize; /* sync endpoint packet size */ + unsigned int fill_max:1; /* fill max packet size always */ + unsigned int tenor_fb_quirk:1; /* corrupted feedback data */ + unsigned int datainterval; /* log_2 of data packet interval */ + unsigned int syncinterval; /* P for adaptive mode, 0 otherwise */ + unsigned char silence_value; + unsigned int stride; + int skip_packets; /* quirks for devices to ignore the first n packets + in a stream */ + bool implicit_fb_sync; /* syncs with implicit feedback */ + bool lowlatency_playback; /* low-latency playback mode */ + bool need_setup; /* (re-)need for hw_params? */ + bool need_prepare; /* (re-)need for prepare? */ + bool fixed_rate; /* skip rate setup */ + + /* for hw constraints */ + const struct audioformat *cur_audiofmt; + unsigned int cur_rate; + snd_pcm_format_t cur_format; + unsigned int cur_channels; + unsigned int cur_frame_bytes; + unsigned int cur_period_frames; + unsigned int cur_period_bytes; + unsigned int cur_buffer_periods; + + spinlock_t lock; + struct list_head list; +}; + +struct media_ctl; + +struct snd_usb_substream { + struct snd_usb_stream *stream; + struct usb_device *dev; + struct snd_pcm_substream *pcm_substream; + int direction; /* playback or capture */ + int endpoint; /* assigned endpoint */ + const struct audioformat *cur_audiofmt; /* current audioformat pointer (for hw_params callback) */ + struct snd_usb_power_domain *str_pd; /* UAC3 Power Domain for streaming path */ + unsigned int channels_max; /* max channels in the all audiofmts */ + unsigned int txfr_quirk:1; /* allow sub-frame alignment */ + unsigned int tx_length_quirk:1; /* add length specifier to transfers */ + unsigned int fmt_type; /* USB audio format type (1-3) */ + unsigned int pkt_offset_adj; /* Bytes to drop from beginning of packets (for non-compliant devices) */ + unsigned int stream_offset_adj; /* Bytes to drop from beginning of stream (for non-compliant devices) */ + + unsigned int running: 1; /* running status */ + unsigned int period_elapsed_pending; /* delay period handling */ + + unsigned int buffer_bytes; /* buffer size in bytes */ + unsigned int inflight_bytes; /* in-flight data bytes on buffer (for playback) */ + unsigned int hwptr_done; /* processed byte position in the buffer */ + unsigned int transfer_done; /* processed frames since last period update */ + unsigned int frame_limit; /* limits number of packets in URB */ + + /* data and sync endpoints for this stream */ + unsigned int ep_num; /* the endpoint number */ + struct snd_usb_endpoint *data_endpoint; + struct snd_usb_endpoint *sync_endpoint; + unsigned long flags; + unsigned int speed; /* USB_SPEED_XXX */ + + u64 formats; /* format bitmasks (all or'ed) */ + unsigned int num_formats; /* number of supported audio formats (list) */ + struct list_head fmt_list; /* format list */ + spinlock_t lock; + + unsigned int last_frame_number; /* stored frame number */ + + struct { + int marker; + int channel; + int byte_idx; + } dsd_dop; + + bool trigger_tstamp_pending_update; /* trigger timestamp being updated from initial estimate */ + bool lowlatency_playback; /* low-latency playback mode */ + struct media_ctl *media_ctl; +}; + +struct snd_usb_stream { + struct snd_usb_audio *chip; + struct snd_pcm *pcm; + int pcm_index; + unsigned int fmt_type; /* USB audio format type (1-3) */ + struct snd_usb_substream substream[2]; + struct list_head list; +}; + +#endif /* __USBAUDIO_CARD_H */ diff --git a/sound/usb/clock.c b/sound/usb/clock.c new file mode 100644 index 000000000..33db334e6 --- /dev/null +++ b/sound/usb/clock.c @@ -0,0 +1,616 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Clock domain and sample rate management functions + */ + +#include <linux/bitops.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> +#include <linux/usb/audio-v3.h> + +#include <sound/core.h> +#include <sound/info.h> +#include <sound/pcm.h> + +#include "usbaudio.h" +#include "card.h" +#include "helper.h" +#include "clock.h" +#include "quirks.h" + +union uac23_clock_source_desc { + struct uac_clock_source_descriptor v2; + struct uac3_clock_source_descriptor v3; +}; + +union uac23_clock_selector_desc { + struct uac_clock_selector_descriptor v2; + struct uac3_clock_selector_descriptor v3; +}; + +union uac23_clock_multiplier_desc { + struct uac_clock_multiplier_descriptor v2; + struct uac_clock_multiplier_descriptor v3; +}; + +#define GET_VAL(p, proto, field) \ + ((proto) == UAC_VERSION_3 ? (p)->v3.field : (p)->v2.field) + +static void *find_uac_clock_desc(struct usb_host_interface *iface, int id, + bool (*validator)(void *, int, int), + u8 type, int proto) +{ + void *cs = NULL; + + while ((cs = snd_usb_find_csint_desc(iface->extra, iface->extralen, + cs, type))) { + if (validator(cs, id, proto)) + return cs; + } + + return NULL; +} + +static bool validate_clock_source(void *p, int id, int proto) +{ + union uac23_clock_source_desc *cs = p; + + return GET_VAL(cs, proto, bClockID) == id; +} + +static bool validate_clock_selector(void *p, int id, int proto) +{ + union uac23_clock_selector_desc *cs = p; + + return GET_VAL(cs, proto, bClockID) == id; +} + +static bool validate_clock_multiplier(void *p, int id, int proto) +{ + union uac23_clock_multiplier_desc *cs = p; + + return GET_VAL(cs, proto, bClockID) == id; +} + +#define DEFINE_FIND_HELPER(name, obj, validator, type2, type3) \ +static obj *name(struct snd_usb_audio *chip, int id, int proto) \ +{ \ + return find_uac_clock_desc(chip->ctrl_intf, id, validator, \ + proto == UAC_VERSION_3 ? (type3) : (type2), \ + proto); \ +} + +DEFINE_FIND_HELPER(snd_usb_find_clock_source, + union uac23_clock_source_desc, validate_clock_source, + UAC2_CLOCK_SOURCE, UAC3_CLOCK_SOURCE); +DEFINE_FIND_HELPER(snd_usb_find_clock_selector, + union uac23_clock_selector_desc, validate_clock_selector, + UAC2_CLOCK_SELECTOR, UAC3_CLOCK_SELECTOR); +DEFINE_FIND_HELPER(snd_usb_find_clock_multiplier, + union uac23_clock_multiplier_desc, validate_clock_multiplier, + UAC2_CLOCK_MULTIPLIER, UAC3_CLOCK_MULTIPLIER); + +static int uac_clock_selector_get_val(struct snd_usb_audio *chip, int selector_id) +{ + unsigned char buf; + int ret; + + ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), + UAC2_CS_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + UAC2_CX_CLOCK_SELECTOR << 8, + snd_usb_ctrl_intf(chip) | (selector_id << 8), + &buf, sizeof(buf)); + + if (ret < 0) + return ret; + + return buf; +} + +static int uac_clock_selector_set_val(struct snd_usb_audio *chip, int selector_id, + unsigned char pin) +{ + int ret; + + ret = snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), + UAC2_CS_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + UAC2_CX_CLOCK_SELECTOR << 8, + snd_usb_ctrl_intf(chip) | (selector_id << 8), + &pin, sizeof(pin)); + if (ret < 0) + return ret; + + if (ret != sizeof(pin)) { + usb_audio_err(chip, + "setting selector (id %d) unexpected length %d\n", + selector_id, ret); + return -EINVAL; + } + + ret = uac_clock_selector_get_val(chip, selector_id); + if (ret < 0) + return ret; + + if (ret != pin) { + usb_audio_err(chip, + "setting selector (id %d) to %x failed (current: %d)\n", + selector_id, pin, ret); + return -EINVAL; + } + + return ret; +} + +static bool uac_clock_source_is_valid_quirk(struct snd_usb_audio *chip, + const struct audioformat *fmt, + int source_id) +{ + bool ret = false; + int count; + unsigned char data; + struct usb_device *dev = chip->dev; + union uac23_clock_source_desc *cs_desc; + + cs_desc = snd_usb_find_clock_source(chip, source_id, fmt->protocol); + if (!cs_desc) + return false; + + if (fmt->protocol == UAC_VERSION_2) { + /* + * Assume the clock is valid if clock source supports only one + * single sample rate, the terminal is connected directly to it + * (there is no clock selector) and clock type is internal. + * This is to deal with some Denon DJ controllers that always + * reports that clock is invalid. + */ + if (fmt->nr_rates == 1 && + (fmt->clock & 0xff) == cs_desc->v2.bClockID && + (cs_desc->v2.bmAttributes & 0x3) != + UAC_CLOCK_SOURCE_TYPE_EXT) + return true; + } + + /* + * MOTU MicroBook IIc + * Sample rate changes takes more than 2 seconds for this device. Clock + * validity request returns false during that period. + */ + if (chip->usb_id == USB_ID(0x07fd, 0x0004)) { + count = 0; + + while ((!ret) && (count < 50)) { + int err; + + msleep(100); + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_CS_CONTROL_CLOCK_VALID << 8, + snd_usb_ctrl_intf(chip) | (source_id << 8), + &data, sizeof(data)); + if (err < 0) { + dev_warn(&dev->dev, + "%s(): cannot get clock validity for id %d\n", + __func__, source_id); + return false; + } + + ret = !!data; + count++; + } + } + + return ret; +} + +static bool uac_clock_source_is_valid(struct snd_usb_audio *chip, + const struct audioformat *fmt, + int source_id) +{ + int err; + unsigned char data; + struct usb_device *dev = chip->dev; + u32 bmControls; + union uac23_clock_source_desc *cs_desc; + + cs_desc = snd_usb_find_clock_source(chip, source_id, fmt->protocol); + if (!cs_desc) + return false; + + if (fmt->protocol == UAC_VERSION_3) + bmControls = le32_to_cpu(cs_desc->v3.bmControls); + else + bmControls = cs_desc->v2.bmControls; + + /* If a clock source can't tell us whether it's valid, we assume it is */ + if (!uac_v2v3_control_is_readable(bmControls, + UAC2_CS_CONTROL_CLOCK_VALID)) + return true; + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_CS_CONTROL_CLOCK_VALID << 8, + snd_usb_ctrl_intf(chip) | (source_id << 8), + &data, sizeof(data)); + + if (err < 0) { + dev_warn(&dev->dev, + "%s(): cannot get clock validity for id %d\n", + __func__, source_id); + return false; + } + + if (data) + return true; + else + return uac_clock_source_is_valid_quirk(chip, fmt, source_id); +} + +static int __uac_clock_find_source(struct snd_usb_audio *chip, + const struct audioformat *fmt, int entity_id, + unsigned long *visited, bool validate) +{ + union uac23_clock_source_desc *source; + union uac23_clock_selector_desc *selector; + union uac23_clock_multiplier_desc *multiplier; + int ret, i, cur, err, pins, clock_id; + const u8 *sources; + int proto = fmt->protocol; + + entity_id &= 0xff; + + if (test_and_set_bit(entity_id, visited)) { + usb_audio_warn(chip, + "%s(): recursive clock topology detected, id %d.\n", + __func__, entity_id); + return -EINVAL; + } + + /* first, see if the ID we're looking at is a clock source already */ + source = snd_usb_find_clock_source(chip, entity_id, proto); + if (source) { + entity_id = GET_VAL(source, proto, bClockID); + if (validate && !uac_clock_source_is_valid(chip, fmt, + entity_id)) { + usb_audio_err(chip, + "clock source %d is not valid, cannot use\n", + entity_id); + return -ENXIO; + } + return entity_id; + } + + selector = snd_usb_find_clock_selector(chip, entity_id, proto); + if (selector) { + pins = GET_VAL(selector, proto, bNrInPins); + clock_id = GET_VAL(selector, proto, bClockID); + sources = GET_VAL(selector, proto, baCSourceID); + cur = 0; + + if (pins == 1) { + ret = 1; + goto find_source; + } + + /* the entity ID we are looking at is a selector. + * find out what it currently selects */ + ret = uac_clock_selector_get_val(chip, clock_id); + if (ret < 0) { + if (!chip->autoclock) + return ret; + goto find_others; + } + + /* Selector values are one-based */ + + if (ret > pins || ret < 1) { + usb_audio_err(chip, + "%s(): selector reported illegal value, id %d, ret %d\n", + __func__, clock_id, ret); + + if (!chip->autoclock) + return -EINVAL; + goto find_others; + } + + find_source: + cur = ret; + ret = __uac_clock_find_source(chip, fmt, + sources[ret - 1], + visited, validate); + if (ret > 0) { + /* Skip setting clock selector again for some devices */ + if (chip->quirk_flags & QUIRK_FLAG_SKIP_CLOCK_SELECTOR) + return ret; + err = uac_clock_selector_set_val(chip, entity_id, cur); + if (err < 0) + return err; + } + + if (!validate || ret > 0 || !chip->autoclock) + return ret; + + find_others: + /* The current clock source is invalid, try others. */ + for (i = 1; i <= pins; i++) { + if (i == cur) + continue; + + ret = __uac_clock_find_source(chip, fmt, + sources[i - 1], + visited, true); + if (ret < 0) + continue; + + err = uac_clock_selector_set_val(chip, entity_id, i); + if (err < 0) + continue; + + usb_audio_info(chip, + "found and selected valid clock source %d\n", + ret); + return ret; + } + + return -ENXIO; + } + + /* FIXME: multipliers only act as pass-thru element for now */ + multiplier = snd_usb_find_clock_multiplier(chip, entity_id, proto); + if (multiplier) + return __uac_clock_find_source(chip, fmt, + GET_VAL(multiplier, proto, bCSourceID), + visited, validate); + + return -EINVAL; +} + +/* + * For all kinds of sample rate settings and other device queries, + * the clock source (end-leaf) must be used. However, clock selectors, + * clock multipliers and sample rate converters may be specified as + * clock source input to terminal. This functions walks the clock path + * to its end and tries to find the source. + * + * The 'visited' bitfield is used internally to detect recursive loops. + * + * Returns the clock source UnitID (>=0) on success, or an error. + */ +int snd_usb_clock_find_source(struct snd_usb_audio *chip, + const struct audioformat *fmt, bool validate) +{ + DECLARE_BITMAP(visited, 256); + memset(visited, 0, sizeof(visited)); + + switch (fmt->protocol) { + case UAC_VERSION_2: + case UAC_VERSION_3: + return __uac_clock_find_source(chip, fmt, fmt->clock, visited, + validate); + default: + return -EINVAL; + } +} + +static int set_sample_rate_v1(struct snd_usb_audio *chip, + const struct audioformat *fmt, int rate) +{ + struct usb_device *dev = chip->dev; + unsigned char data[3]; + int err, crate; + + /* if endpoint doesn't have sampling rate control, bail out */ + if (!(fmt->attributes & UAC_EP_CS_ATTR_SAMPLE_RATE)) + return 0; + + data[0] = rate; + data[1] = rate >> 8; + data[2] = rate >> 16; + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, + USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT, + UAC_EP_CS_ATTR_SAMPLE_RATE << 8, + fmt->endpoint, data, sizeof(data)); + if (err < 0) { + dev_err(&dev->dev, "%d:%d: cannot set freq %d to ep %#x\n", + fmt->iface, fmt->altsetting, rate, fmt->endpoint); + return err; + } + + /* Don't check the sample rate for devices which we know don't + * support reading */ + if (chip->quirk_flags & QUIRK_FLAG_GET_SAMPLE_RATE) + return 0; + /* the firmware is likely buggy, don't repeat to fail too many times */ + if (chip->sample_rate_read_error > 2) + return 0; + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR, + USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN, + UAC_EP_CS_ATTR_SAMPLE_RATE << 8, + fmt->endpoint, data, sizeof(data)); + if (err < 0) { + dev_err(&dev->dev, "%d:%d: cannot get freq at ep %#x\n", + fmt->iface, fmt->altsetting, fmt->endpoint); + chip->sample_rate_read_error++; + return 0; /* some devices don't support reading */ + } + + crate = data[0] | (data[1] << 8) | (data[2] << 16); + if (!crate) { + dev_info(&dev->dev, "failed to read current rate; disabling the check\n"); + chip->sample_rate_read_error = 3; /* three strikes, see above */ + return 0; + } + + if (crate != rate) { + dev_warn(&dev->dev, "current rate %d is different from the runtime rate %d\n", crate, rate); + // runtime->rate = crate; + } + + return 0; +} + +static int get_sample_rate_v2v3(struct snd_usb_audio *chip, int iface, + int altsetting, int clock) +{ + struct usb_device *dev = chip->dev; + __le32 data; + int err; + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), + &data, sizeof(data)); + if (err < 0) { + dev_warn(&dev->dev, "%d:%d: cannot get freq (v2/v3): err %d\n", + iface, altsetting, err); + return 0; + } + + return le32_to_cpu(data); +} + +/* + * Try to set the given sample rate: + * + * Return 0 if the clock source is read-only, the actual rate on success, + * or a negative error code. + * + * This function gets called from format.c to validate each sample rate, too. + * Hence no message is shown upon error + */ +int snd_usb_set_sample_rate_v2v3(struct snd_usb_audio *chip, + const struct audioformat *fmt, + int clock, int rate) +{ + bool writeable; + u32 bmControls; + __le32 data; + int err; + union uac23_clock_source_desc *cs_desc; + + cs_desc = snd_usb_find_clock_source(chip, clock, fmt->protocol); + + if (!cs_desc) + return 0; + + if (fmt->protocol == UAC_VERSION_3) + bmControls = le32_to_cpu(cs_desc->v3.bmControls); + else + bmControls = cs_desc->v2.bmControls; + + writeable = uac_v2v3_control_is_writeable(bmControls, + UAC2_CS_CONTROL_SAM_FREQ); + if (!writeable) + return 0; + + data = cpu_to_le32(rate); + err = snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), + &data, sizeof(data)); + if (err < 0) + return err; + + return get_sample_rate_v2v3(chip, fmt->iface, fmt->altsetting, clock); +} + +static int set_sample_rate_v2v3(struct snd_usb_audio *chip, + const struct audioformat *fmt, int rate) +{ + int cur_rate, prev_rate; + int clock; + + /* First, try to find a valid clock. This may trigger + * automatic clock selection if the current clock is not + * valid. + */ + clock = snd_usb_clock_find_source(chip, fmt, true); + if (clock < 0) { + /* We did not find a valid clock, but that might be + * because the current sample rate does not match an + * external clock source. Try again without validation + * and we will do another validation after setting the + * rate. + */ + clock = snd_usb_clock_find_source(chip, fmt, false); + + /* Hardcoded sample rates */ + if (chip->quirk_flags & QUIRK_FLAG_IGNORE_CLOCK_SOURCE) + return 0; + + if (clock < 0) + return clock; + } + + prev_rate = get_sample_rate_v2v3(chip, fmt->iface, fmt->altsetting, clock); + if (prev_rate == rate) + goto validation; + + cur_rate = snd_usb_set_sample_rate_v2v3(chip, fmt, clock, rate); + if (cur_rate < 0) { + usb_audio_err(chip, + "%d:%d: cannot set freq %d (v2/v3): err %d\n", + fmt->iface, fmt->altsetting, rate, cur_rate); + return cur_rate; + } + + if (!cur_rate) + cur_rate = prev_rate; + + if (cur_rate != rate) { + usb_audio_dbg(chip, + "%d:%d: freq mismatch: req %d, clock runs @%d\n", + fmt->iface, fmt->altsetting, rate, cur_rate); + /* continue processing */ + } + + /* FIXME - TEAC devices require the immediate interface setup */ + if (USB_ID_VENDOR(chip->usb_id) == 0x0644) { + bool cur_base_48k = (rate % 48000 == 0); + bool prev_base_48k = (prev_rate % 48000 == 0); + if (cur_base_48k != prev_base_48k) { + usb_set_interface(chip->dev, fmt->iface, fmt->altsetting); + if (chip->quirk_flags & QUIRK_FLAG_IFACE_DELAY) + msleep(50); + } + } + +validation: + /* validate clock after rate change */ + if (!uac_clock_source_is_valid(chip, fmt, clock)) + return -ENXIO; + return 0; +} + +int snd_usb_init_sample_rate(struct snd_usb_audio *chip, + const struct audioformat *fmt, int rate) +{ + usb_audio_dbg(chip, "%d:%d Set sample rate %d, clock %d\n", + fmt->iface, fmt->altsetting, rate, fmt->clock); + + switch (fmt->protocol) { + case UAC_VERSION_1: + default: + return set_sample_rate_v1(chip, fmt, rate); + + case UAC_VERSION_3: + if (chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { + if (rate != UAC3_BADD_SAMPLING_RATE) + return -ENXIO; + else + return 0; + } + fallthrough; + case UAC_VERSION_2: + return set_sample_rate_v2v3(chip, fmt, rate); + } +} + diff --git a/sound/usb/clock.h b/sound/usb/clock.h new file mode 100644 index 000000000..ed9fc2dc0 --- /dev/null +++ b/sound/usb/clock.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_CLOCK_H +#define __USBAUDIO_CLOCK_H + +int snd_usb_init_sample_rate(struct snd_usb_audio *chip, + const struct audioformat *fmt, int rate); + +int snd_usb_clock_find_source(struct snd_usb_audio *chip, + const struct audioformat *fmt, bool validate); + +int snd_usb_set_sample_rate_v2v3(struct snd_usb_audio *chip, + const struct audioformat *fmt, + int clock, int rate); + +#endif /* __USBAUDIO_CLOCK_H */ diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c new file mode 100644 index 000000000..647fa054d --- /dev/null +++ b/sound/usb/endpoint.c @@ -0,0 +1,1892 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include <linux/gfp.h> +#include <linux/init.h> +#include <linux/ratelimit.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/slab.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "usbaudio.h" +#include "helper.h" +#include "card.h" +#include "endpoint.h" +#include "pcm.h" +#include "clock.h" +#include "quirks.h" + +enum { + EP_STATE_STOPPED, + EP_STATE_RUNNING, + EP_STATE_STOPPING, +}; + +/* interface refcounting */ +struct snd_usb_iface_ref { + unsigned char iface; + bool need_setup; + int opened; + int altset; + struct list_head list; +}; + +/* clock refcounting */ +struct snd_usb_clock_ref { + unsigned char clock; + atomic_t locked; + int opened; + int rate; + bool need_setup; + struct list_head list; +}; + +/* + * snd_usb_endpoint is a model that abstracts everything related to an + * USB endpoint and its streaming. + * + * There are functions to activate and deactivate the streaming URBs and + * optional callbacks to let the pcm logic handle the actual content of the + * packets for playback and record. Thus, the bus streaming and the audio + * handlers are fully decoupled. + * + * There are two different types of endpoints in audio applications. + * + * SND_USB_ENDPOINT_TYPE_DATA handles full audio data payload for both + * inbound and outbound traffic. + * + * SND_USB_ENDPOINT_TYPE_SYNC endpoints are for inbound traffic only and + * expect the payload to carry Q10.14 / Q16.16 formatted sync information + * (3 or 4 bytes). + * + * Each endpoint has to be configured prior to being used by calling + * snd_usb_endpoint_set_params(). + * + * The model incorporates a reference counting, so that multiple users + * can call snd_usb_endpoint_start() and snd_usb_endpoint_stop(), and + * only the first user will effectively start the URBs, and only the last + * one to stop it will tear the URBs down again. + */ + +/* + * convert a sampling rate into our full speed format (fs/1000 in Q16.16) + * this will overflow at approx 524 kHz + */ +static inline unsigned get_usb_full_speed_rate(unsigned int rate) +{ + return ((rate << 13) + 62) / 125; +} + +/* + * convert a sampling rate into USB high speed format (fs/8000 in Q16.16) + * this will overflow at approx 4 MHz + */ +static inline unsigned get_usb_high_speed_rate(unsigned int rate) +{ + return ((rate << 10) + 62) / 125; +} + +/* + * release a urb data + */ +static void release_urb_ctx(struct snd_urb_ctx *u) +{ + if (u->urb && u->buffer_size) + usb_free_coherent(u->ep->chip->dev, u->buffer_size, + u->urb->transfer_buffer, + u->urb->transfer_dma); + usb_free_urb(u->urb); + u->urb = NULL; + u->buffer_size = 0; +} + +static const char *usb_error_string(int err) +{ + switch (err) { + case -ENODEV: + return "no device"; + case -ENOENT: + return "endpoint not enabled"; + case -EPIPE: + return "endpoint stalled"; + case -ENOSPC: + return "not enough bandwidth"; + case -ESHUTDOWN: + return "device disabled"; + case -EHOSTUNREACH: + return "device suspended"; + case -EINVAL: + case -EAGAIN: + case -EFBIG: + case -EMSGSIZE: + return "internal error"; + default: + return "unknown error"; + } +} + +static inline bool ep_state_running(struct snd_usb_endpoint *ep) +{ + return atomic_read(&ep->state) == EP_STATE_RUNNING; +} + +static inline bool ep_state_update(struct snd_usb_endpoint *ep, int old, int new) +{ + return atomic_try_cmpxchg(&ep->state, &old, new); +} + +/** + * snd_usb_endpoint_implicit_feedback_sink: Report endpoint usage type + * + * @ep: The snd_usb_endpoint + * + * Determine whether an endpoint is driven by an implicit feedback + * data endpoint source. + */ +int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep) +{ + return ep->implicit_fb_sync && usb_pipeout(ep->pipe); +} + +/* + * Return the number of samples to be sent in the next packet + * for streaming based on information derived from sync endpoints + * + * This won't be used for implicit feedback which takes the packet size + * returned from the sync source + */ +static int slave_next_packet_size(struct snd_usb_endpoint *ep, + unsigned int avail) +{ + unsigned long flags; + unsigned int phase; + int ret; + + if (ep->fill_max) + return ep->maxframesize; + + spin_lock_irqsave(&ep->lock, flags); + phase = (ep->phase & 0xffff) + (ep->freqm << ep->datainterval); + ret = min(phase >> 16, ep->maxframesize); + if (avail && ret >= avail) + ret = -EAGAIN; + else + ep->phase = phase; + spin_unlock_irqrestore(&ep->lock, flags); + + return ret; +} + +/* + * Return the number of samples to be sent in the next packet + * for adaptive and synchronous endpoints + */ +static int next_packet_size(struct snd_usb_endpoint *ep, unsigned int avail) +{ + unsigned int sample_accum; + int ret; + + if (ep->fill_max) + return ep->maxframesize; + + sample_accum = ep->sample_accum + ep->sample_rem; + if (sample_accum >= ep->pps) { + sample_accum -= ep->pps; + ret = ep->packsize[1]; + } else { + ret = ep->packsize[0]; + } + if (avail && ret >= avail) + ret = -EAGAIN; + else + ep->sample_accum = sample_accum; + + return ret; +} + +/* + * snd_usb_endpoint_next_packet_size: Return the number of samples to be sent + * in the next packet + * + * If the size is equal or exceeds @avail, don't proceed but return -EAGAIN + * Exception: @avail = 0 for skipping the check. + */ +int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *ctx, int idx, + unsigned int avail) +{ + unsigned int packet; + + packet = ctx->packet_size[idx]; + if (packet) { + if (avail && packet >= avail) + return -EAGAIN; + return packet; + } + + if (ep->sync_source) + return slave_next_packet_size(ep, avail); + else + return next_packet_size(ep, avail); +} + +static void call_retire_callback(struct snd_usb_endpoint *ep, + struct urb *urb) +{ + struct snd_usb_substream *data_subs; + + data_subs = READ_ONCE(ep->data_subs); + if (data_subs && ep->retire_data_urb) + ep->retire_data_urb(data_subs, urb); +} + +static void retire_outbound_urb(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *urb_ctx) +{ + call_retire_callback(ep, urb_ctx->urb); +} + +static void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep, + struct snd_usb_endpoint *sender, + const struct urb *urb); + +static void retire_inbound_urb(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *urb_ctx) +{ + struct urb *urb = urb_ctx->urb; + struct snd_usb_endpoint *sync_sink; + + if (unlikely(ep->skip_packets > 0)) { + ep->skip_packets--; + return; + } + + sync_sink = READ_ONCE(ep->sync_sink); + if (sync_sink) + snd_usb_handle_sync_urb(sync_sink, ep, urb); + + call_retire_callback(ep, urb); +} + +static inline bool has_tx_length_quirk(struct snd_usb_audio *chip) +{ + return chip->quirk_flags & QUIRK_FLAG_TX_LENGTH; +} + +static void prepare_silent_urb(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *ctx) +{ + struct urb *urb = ctx->urb; + unsigned int offs = 0; + unsigned int extra = 0; + __le32 packet_length; + int i; + + /* For tx_length_quirk, put packet length at start of packet */ + if (has_tx_length_quirk(ep->chip)) + extra = sizeof(packet_length); + + for (i = 0; i < ctx->packets; ++i) { + unsigned int offset; + unsigned int length; + int counts; + + counts = snd_usb_endpoint_next_packet_size(ep, ctx, i, 0); + length = counts * ep->stride; /* number of silent bytes */ + offset = offs * ep->stride + extra * i; + urb->iso_frame_desc[i].offset = offset; + urb->iso_frame_desc[i].length = length + extra; + if (extra) { + packet_length = cpu_to_le32(length); + memcpy(urb->transfer_buffer + offset, + &packet_length, sizeof(packet_length)); + } + memset(urb->transfer_buffer + offset + extra, + ep->silence_value, length); + offs += counts; + } + + urb->number_of_packets = ctx->packets; + urb->transfer_buffer_length = offs * ep->stride + ctx->packets * extra; + ctx->queued = 0; +} + +/* + * Prepare a PLAYBACK urb for submission to the bus. + */ +static int prepare_outbound_urb(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *ctx, + bool in_stream_lock) +{ + struct urb *urb = ctx->urb; + unsigned char *cp = urb->transfer_buffer; + struct snd_usb_substream *data_subs; + + urb->dev = ep->chip->dev; /* we need to set this at each time */ + + switch (ep->type) { + case SND_USB_ENDPOINT_TYPE_DATA: + data_subs = READ_ONCE(ep->data_subs); + if (data_subs && ep->prepare_data_urb) + return ep->prepare_data_urb(data_subs, urb, in_stream_lock); + /* no data provider, so send silence */ + prepare_silent_urb(ep, ctx); + break; + + case SND_USB_ENDPOINT_TYPE_SYNC: + if (snd_usb_get_speed(ep->chip->dev) >= USB_SPEED_HIGH) { + /* + * fill the length and offset of each urb descriptor. + * the fixed 12.13 frequency is passed as 16.16 through the pipe. + */ + urb->iso_frame_desc[0].length = 4; + urb->iso_frame_desc[0].offset = 0; + cp[0] = ep->freqn; + cp[1] = ep->freqn >> 8; + cp[2] = ep->freqn >> 16; + cp[3] = ep->freqn >> 24; + } else { + /* + * fill the length and offset of each urb descriptor. + * the fixed 10.14 frequency is passed through the pipe. + */ + urb->iso_frame_desc[0].length = 3; + urb->iso_frame_desc[0].offset = 0; + cp[0] = ep->freqn >> 2; + cp[1] = ep->freqn >> 10; + cp[2] = ep->freqn >> 18; + } + + break; + } + return 0; +} + +/* + * Prepare a CAPTURE or SYNC urb for submission to the bus. + */ +static int prepare_inbound_urb(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *urb_ctx) +{ + int i, offs; + struct urb *urb = urb_ctx->urb; + + urb->dev = ep->chip->dev; /* we need to set this at each time */ + + switch (ep->type) { + case SND_USB_ENDPOINT_TYPE_DATA: + offs = 0; + for (i = 0; i < urb_ctx->packets; i++) { + urb->iso_frame_desc[i].offset = offs; + urb->iso_frame_desc[i].length = ep->curpacksize; + offs += ep->curpacksize; + } + + urb->transfer_buffer_length = offs; + urb->number_of_packets = urb_ctx->packets; + break; + + case SND_USB_ENDPOINT_TYPE_SYNC: + urb->iso_frame_desc[0].length = min(4u, ep->syncmaxsize); + urb->iso_frame_desc[0].offset = 0; + break; + } + return 0; +} + +/* notify an error as XRUN to the assigned PCM data substream */ +static void notify_xrun(struct snd_usb_endpoint *ep) +{ + struct snd_usb_substream *data_subs; + + data_subs = READ_ONCE(ep->data_subs); + if (data_subs && data_subs->pcm_substream) + snd_pcm_stop_xrun(data_subs->pcm_substream); +} + +static struct snd_usb_packet_info * +next_packet_fifo_enqueue(struct snd_usb_endpoint *ep) +{ + struct snd_usb_packet_info *p; + + p = ep->next_packet + (ep->next_packet_head + ep->next_packet_queued) % + ARRAY_SIZE(ep->next_packet); + ep->next_packet_queued++; + return p; +} + +static struct snd_usb_packet_info * +next_packet_fifo_dequeue(struct snd_usb_endpoint *ep) +{ + struct snd_usb_packet_info *p; + + p = ep->next_packet + ep->next_packet_head; + ep->next_packet_head++; + ep->next_packet_head %= ARRAY_SIZE(ep->next_packet); + ep->next_packet_queued--; + return p; +} + +static void push_back_to_ready_list(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *ctx) +{ + unsigned long flags; + + spin_lock_irqsave(&ep->lock, flags); + list_add_tail(&ctx->ready_list, &ep->ready_playback_urbs); + spin_unlock_irqrestore(&ep->lock, flags); +} + +/* + * Send output urbs that have been prepared previously. URBs are dequeued + * from ep->ready_playback_urbs and in case there aren't any available + * or there are no packets that have been prepared, this function does + * nothing. + * + * The reason why the functionality of sending and preparing URBs is separated + * is that host controllers don't guarantee the order in which they return + * inbound and outbound packets to their submitters. + * + * This function is used both for implicit feedback endpoints and in low- + * latency playback mode. + */ +int snd_usb_queue_pending_output_urbs(struct snd_usb_endpoint *ep, + bool in_stream_lock) +{ + bool implicit_fb = snd_usb_endpoint_implicit_feedback_sink(ep); + + while (ep_state_running(ep)) { + + unsigned long flags; + struct snd_usb_packet_info *packet; + struct snd_urb_ctx *ctx = NULL; + int err, i; + + spin_lock_irqsave(&ep->lock, flags); + if ((!implicit_fb || ep->next_packet_queued > 0) && + !list_empty(&ep->ready_playback_urbs)) { + /* take URB out of FIFO */ + ctx = list_first_entry(&ep->ready_playback_urbs, + struct snd_urb_ctx, ready_list); + list_del_init(&ctx->ready_list); + if (implicit_fb) + packet = next_packet_fifo_dequeue(ep); + } + spin_unlock_irqrestore(&ep->lock, flags); + + if (ctx == NULL) + break; + + /* copy over the length information */ + if (implicit_fb) { + for (i = 0; i < packet->packets; i++) + ctx->packet_size[i] = packet->packet_size[i]; + } + + /* call the data handler to fill in playback data */ + err = prepare_outbound_urb(ep, ctx, in_stream_lock); + /* can be stopped during prepare callback */ + if (unlikely(!ep_state_running(ep))) + break; + if (err < 0) { + /* push back to ready list again for -EAGAIN */ + if (err == -EAGAIN) { + push_back_to_ready_list(ep, ctx); + break; + } + + if (!in_stream_lock) + notify_xrun(ep); + return -EPIPE; + } + + err = usb_submit_urb(ctx->urb, GFP_ATOMIC); + if (err < 0) { + usb_audio_err(ep->chip, + "Unable to submit urb #%d: %d at %s\n", + ctx->index, err, __func__); + if (!in_stream_lock) + notify_xrun(ep); + return -EPIPE; + } + + set_bit(ctx->index, &ep->active_mask); + atomic_inc(&ep->submitted_urbs); + } + + return 0; +} + +/* + * complete callback for urbs + */ +static void snd_complete_urb(struct urb *urb) +{ + struct snd_urb_ctx *ctx = urb->context; + struct snd_usb_endpoint *ep = ctx->ep; + int err; + + if (unlikely(urb->status == -ENOENT || /* unlinked */ + urb->status == -ENODEV || /* device removed */ + urb->status == -ECONNRESET || /* unlinked */ + urb->status == -ESHUTDOWN)) /* device disabled */ + goto exit_clear; + /* device disconnected */ + if (unlikely(atomic_read(&ep->chip->shutdown))) + goto exit_clear; + + if (unlikely(!ep_state_running(ep))) + goto exit_clear; + + if (usb_pipeout(ep->pipe)) { + retire_outbound_urb(ep, ctx); + /* can be stopped during retire callback */ + if (unlikely(!ep_state_running(ep))) + goto exit_clear; + + /* in low-latency and implicit-feedback modes, push back the + * URB to ready list at first, then process as much as possible + */ + if (ep->lowlatency_playback || + snd_usb_endpoint_implicit_feedback_sink(ep)) { + push_back_to_ready_list(ep, ctx); + clear_bit(ctx->index, &ep->active_mask); + snd_usb_queue_pending_output_urbs(ep, false); + atomic_dec(&ep->submitted_urbs); /* decrement at last */ + return; + } + + /* in non-lowlatency mode, no error handling for prepare */ + prepare_outbound_urb(ep, ctx, false); + /* can be stopped during prepare callback */ + if (unlikely(!ep_state_running(ep))) + goto exit_clear; + } else { + retire_inbound_urb(ep, ctx); + /* can be stopped during retire callback */ + if (unlikely(!ep_state_running(ep))) + goto exit_clear; + + prepare_inbound_urb(ep, ctx); + } + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err == 0) + return; + + usb_audio_err(ep->chip, "cannot submit urb (err = %d)\n", err); + notify_xrun(ep); + +exit_clear: + clear_bit(ctx->index, &ep->active_mask); + atomic_dec(&ep->submitted_urbs); +} + +/* + * Find or create a refcount object for the given interface + * + * The objects are released altogether in snd_usb_endpoint_free_all() + */ +static struct snd_usb_iface_ref * +iface_ref_find(struct snd_usb_audio *chip, int iface) +{ + struct snd_usb_iface_ref *ip; + + list_for_each_entry(ip, &chip->iface_ref_list, list) + if (ip->iface == iface) + return ip; + + ip = kzalloc(sizeof(*ip), GFP_KERNEL); + if (!ip) + return NULL; + ip->iface = iface; + list_add_tail(&ip->list, &chip->iface_ref_list); + return ip; +} + +/* Similarly, a refcount object for clock */ +static struct snd_usb_clock_ref * +clock_ref_find(struct snd_usb_audio *chip, int clock) +{ + struct snd_usb_clock_ref *ref; + + list_for_each_entry(ref, &chip->clock_ref_list, list) + if (ref->clock == clock) + return ref; + + ref = kzalloc(sizeof(*ref), GFP_KERNEL); + if (!ref) + return NULL; + ref->clock = clock; + atomic_set(&ref->locked, 0); + list_add_tail(&ref->list, &chip->clock_ref_list); + return ref; +} + +/* + * Get the existing endpoint object corresponding EP + * Returns NULL if not present. + */ +struct snd_usb_endpoint * +snd_usb_get_endpoint(struct snd_usb_audio *chip, int ep_num) +{ + struct snd_usb_endpoint *ep; + + list_for_each_entry(ep, &chip->ep_list, list) { + if (ep->ep_num == ep_num) + return ep; + } + + return NULL; +} + +#define ep_type_name(type) \ + (type == SND_USB_ENDPOINT_TYPE_DATA ? "data" : "sync") + +/** + * snd_usb_add_endpoint: Add an endpoint to an USB audio chip + * + * @chip: The chip + * @ep_num: The number of the endpoint to use + * @type: SND_USB_ENDPOINT_TYPE_DATA or SND_USB_ENDPOINT_TYPE_SYNC + * + * If the requested endpoint has not been added to the given chip before, + * a new instance is created. + * + * Returns zero on success or a negative error code. + * + * New endpoints will be added to chip->ep_list and freed by + * calling snd_usb_endpoint_free_all(). + * + * For SND_USB_ENDPOINT_TYPE_SYNC, the caller needs to guarantee that + * bNumEndpoints > 1 beforehand. + */ +int snd_usb_add_endpoint(struct snd_usb_audio *chip, int ep_num, int type) +{ + struct snd_usb_endpoint *ep; + bool is_playback; + + ep = snd_usb_get_endpoint(chip, ep_num); + if (ep) + return 0; + + usb_audio_dbg(chip, "Creating new %s endpoint #%x\n", + ep_type_name(type), + ep_num); + ep = kzalloc(sizeof(*ep), GFP_KERNEL); + if (!ep) + return -ENOMEM; + + ep->chip = chip; + spin_lock_init(&ep->lock); + ep->type = type; + ep->ep_num = ep_num; + INIT_LIST_HEAD(&ep->ready_playback_urbs); + atomic_set(&ep->submitted_urbs, 0); + + is_playback = ((ep_num & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT); + ep_num &= USB_ENDPOINT_NUMBER_MASK; + if (is_playback) + ep->pipe = usb_sndisocpipe(chip->dev, ep_num); + else + ep->pipe = usb_rcvisocpipe(chip->dev, ep_num); + + list_add_tail(&ep->list, &chip->ep_list); + return 0; +} + +/* Set up syncinterval and maxsyncsize for a sync EP */ +static void endpoint_set_syncinterval(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep) +{ + struct usb_host_interface *alts; + struct usb_endpoint_descriptor *desc; + + alts = snd_usb_get_host_interface(chip, ep->iface, ep->altsetting); + if (!alts) + return; + + desc = get_endpoint(alts, ep->ep_idx); + if (desc->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && + desc->bRefresh >= 1 && desc->bRefresh <= 9) + ep->syncinterval = desc->bRefresh; + else if (snd_usb_get_speed(chip->dev) == USB_SPEED_FULL) + ep->syncinterval = 1; + else if (desc->bInterval >= 1 && desc->bInterval <= 16) + ep->syncinterval = desc->bInterval - 1; + else + ep->syncinterval = 3; + + ep->syncmaxsize = le16_to_cpu(desc->wMaxPacketSize); +} + +static bool endpoint_compatible(struct snd_usb_endpoint *ep, + const struct audioformat *fp, + const struct snd_pcm_hw_params *params) +{ + if (!ep->opened) + return false; + if (ep->cur_audiofmt != fp) + return false; + if (ep->cur_rate != params_rate(params) || + ep->cur_format != params_format(params) || + ep->cur_period_frames != params_period_size(params) || + ep->cur_buffer_periods != params_periods(params)) + return false; + return true; +} + +/* + * Check whether the given fp and hw params are compatible with the current + * setup of the target EP for implicit feedback sync + */ +bool snd_usb_endpoint_compatible(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep, + const struct audioformat *fp, + const struct snd_pcm_hw_params *params) +{ + bool ret; + + mutex_lock(&chip->mutex); + ret = endpoint_compatible(ep, fp, params); + mutex_unlock(&chip->mutex); + return ret; +} + +/* + * snd_usb_endpoint_open: Open the endpoint + * + * Called from hw_params to assign the endpoint to the substream. + * It's reference-counted, and only the first opener is allowed to set up + * arbitrary parameters. The later opener must be compatible with the + * former opened parameters. + * The endpoint needs to be closed via snd_usb_endpoint_close() later. + * + * Note that this function doesn't configure the endpoint. The substream + * needs to set it up later via snd_usb_endpoint_set_params() and + * snd_usb_endpoint_prepare(). + */ +struct snd_usb_endpoint * +snd_usb_endpoint_open(struct snd_usb_audio *chip, + const struct audioformat *fp, + const struct snd_pcm_hw_params *params, + bool is_sync_ep, + bool fixed_rate) +{ + struct snd_usb_endpoint *ep; + int ep_num = is_sync_ep ? fp->sync_ep : fp->endpoint; + + mutex_lock(&chip->mutex); + ep = snd_usb_get_endpoint(chip, ep_num); + if (!ep) { + usb_audio_err(chip, "Cannot find EP 0x%x to open\n", ep_num); + goto unlock; + } + + if (!ep->opened) { + if (is_sync_ep) { + ep->iface = fp->sync_iface; + ep->altsetting = fp->sync_altsetting; + ep->ep_idx = fp->sync_ep_idx; + } else { + ep->iface = fp->iface; + ep->altsetting = fp->altsetting; + ep->ep_idx = fp->ep_idx; + } + usb_audio_dbg(chip, "Open EP 0x%x, iface=%d:%d, idx=%d\n", + ep_num, ep->iface, ep->altsetting, ep->ep_idx); + + ep->iface_ref = iface_ref_find(chip, ep->iface); + if (!ep->iface_ref) { + ep = NULL; + goto unlock; + } + + if (fp->protocol != UAC_VERSION_1) { + ep->clock_ref = clock_ref_find(chip, fp->clock); + if (!ep->clock_ref) { + ep = NULL; + goto unlock; + } + ep->clock_ref->opened++; + } + + ep->cur_audiofmt = fp; + ep->cur_channels = fp->channels; + ep->cur_rate = params_rate(params); + ep->cur_format = params_format(params); + ep->cur_frame_bytes = snd_pcm_format_physical_width(ep->cur_format) * + ep->cur_channels / 8; + ep->cur_period_frames = params_period_size(params); + ep->cur_period_bytes = ep->cur_period_frames * ep->cur_frame_bytes; + ep->cur_buffer_periods = params_periods(params); + + if (ep->type == SND_USB_ENDPOINT_TYPE_SYNC) + endpoint_set_syncinterval(chip, ep); + + ep->implicit_fb_sync = fp->implicit_fb; + ep->need_setup = true; + ep->need_prepare = true; + ep->fixed_rate = fixed_rate; + + usb_audio_dbg(chip, " channels=%d, rate=%d, format=%s, period_bytes=%d, periods=%d, implicit_fb=%d\n", + ep->cur_channels, ep->cur_rate, + snd_pcm_format_name(ep->cur_format), + ep->cur_period_bytes, ep->cur_buffer_periods, + ep->implicit_fb_sync); + + } else { + if (WARN_ON(!ep->iface_ref)) { + ep = NULL; + goto unlock; + } + + if (!endpoint_compatible(ep, fp, params)) { + usb_audio_err(chip, "Incompatible EP setup for 0x%x\n", + ep_num); + ep = NULL; + goto unlock; + } + + usb_audio_dbg(chip, "Reopened EP 0x%x (count %d)\n", + ep_num, ep->opened); + } + + if (!ep->iface_ref->opened++) + ep->iface_ref->need_setup = true; + + ep->opened++; + + unlock: + mutex_unlock(&chip->mutex); + return ep; +} + +/* + * snd_usb_endpoint_set_sync: Link data and sync endpoints + * + * Pass NULL to sync_ep to unlink again + */ +void snd_usb_endpoint_set_sync(struct snd_usb_audio *chip, + struct snd_usb_endpoint *data_ep, + struct snd_usb_endpoint *sync_ep) +{ + data_ep->sync_source = sync_ep; +} + +/* + * Set data endpoint callbacks and the assigned data stream + * + * Called at PCM trigger and cleanups. + * Pass NULL to deactivate each callback. + */ +void snd_usb_endpoint_set_callback(struct snd_usb_endpoint *ep, + int (*prepare)(struct snd_usb_substream *subs, + struct urb *urb, + bool in_stream_lock), + void (*retire)(struct snd_usb_substream *subs, + struct urb *urb), + struct snd_usb_substream *data_subs) +{ + ep->prepare_data_urb = prepare; + ep->retire_data_urb = retire; + if (data_subs) + ep->lowlatency_playback = data_subs->lowlatency_playback; + else + ep->lowlatency_playback = false; + WRITE_ONCE(ep->data_subs, data_subs); +} + +static int endpoint_set_interface(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep, + bool set) +{ + int altset = set ? ep->altsetting : 0; + int err; + + if (ep->iface_ref->altset == altset) + return 0; + + usb_audio_dbg(chip, "Setting usb interface %d:%d for EP 0x%x\n", + ep->iface, altset, ep->ep_num); + err = usb_set_interface(chip->dev, ep->iface, altset); + if (err < 0) { + usb_audio_err(chip, "%d:%d: usb_set_interface failed (%d)\n", + ep->iface, altset, err); + return err; + } + + if (chip->quirk_flags & QUIRK_FLAG_IFACE_DELAY) + msleep(50); + ep->iface_ref->altset = altset; + return 0; +} + +/* + * snd_usb_endpoint_close: Close the endpoint + * + * Unreference the already opened endpoint via snd_usb_endpoint_open(). + */ +void snd_usb_endpoint_close(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep) +{ + mutex_lock(&chip->mutex); + usb_audio_dbg(chip, "Closing EP 0x%x (count %d)\n", + ep->ep_num, ep->opened); + + if (!--ep->iface_ref->opened && + !(chip->quirk_flags & QUIRK_FLAG_IFACE_SKIP_CLOSE)) + endpoint_set_interface(chip, ep, false); + + if (!--ep->opened) { + if (ep->clock_ref) { + if (!--ep->clock_ref->opened) + ep->clock_ref->rate = 0; + } + ep->iface = 0; + ep->altsetting = 0; + ep->cur_audiofmt = NULL; + ep->cur_rate = 0; + ep->iface_ref = NULL; + ep->clock_ref = NULL; + usb_audio_dbg(chip, "EP 0x%x closed\n", ep->ep_num); + } + mutex_unlock(&chip->mutex); +} + +/* Prepare for suspening EP, called from the main suspend handler */ +void snd_usb_endpoint_suspend(struct snd_usb_endpoint *ep) +{ + ep->need_prepare = true; + if (ep->iface_ref) + ep->iface_ref->need_setup = true; + if (ep->clock_ref) + ep->clock_ref->rate = 0; +} + +/* + * wait until all urbs are processed. + */ +static int wait_clear_urbs(struct snd_usb_endpoint *ep) +{ + unsigned long end_time = jiffies + msecs_to_jiffies(1000); + int alive; + + if (atomic_read(&ep->state) != EP_STATE_STOPPING) + return 0; + + do { + alive = atomic_read(&ep->submitted_urbs); + if (!alive) + break; + + schedule_timeout_uninterruptible(1); + } while (time_before(jiffies, end_time)); + + if (alive) + usb_audio_err(ep->chip, + "timeout: still %d active urbs on EP #%x\n", + alive, ep->ep_num); + + if (ep_state_update(ep, EP_STATE_STOPPING, EP_STATE_STOPPED)) { + ep->sync_sink = NULL; + snd_usb_endpoint_set_callback(ep, NULL, NULL, NULL); + } + + return 0; +} + +/* sync the pending stop operation; + * this function itself doesn't trigger the stop operation + */ +void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep) +{ + if (ep) + wait_clear_urbs(ep); +} + +/* + * Stop active urbs + * + * This function moves the EP to STOPPING state if it's being RUNNING. + */ +static int stop_urbs(struct snd_usb_endpoint *ep, bool force, bool keep_pending) +{ + unsigned int i; + unsigned long flags; + + if (!force && atomic_read(&ep->running)) + return -EBUSY; + + if (!ep_state_update(ep, EP_STATE_RUNNING, EP_STATE_STOPPING)) + return 0; + + spin_lock_irqsave(&ep->lock, flags); + INIT_LIST_HEAD(&ep->ready_playback_urbs); + ep->next_packet_head = 0; + ep->next_packet_queued = 0; + spin_unlock_irqrestore(&ep->lock, flags); + + if (keep_pending) + return 0; + + for (i = 0; i < ep->nurbs; i++) { + if (test_bit(i, &ep->active_mask)) { + if (!test_and_set_bit(i, &ep->unlink_mask)) { + struct urb *u = ep->urb[i].urb; + usb_unlink_urb(u); + } + } + } + + return 0; +} + +/* + * release an endpoint's urbs + */ +static int release_urbs(struct snd_usb_endpoint *ep, bool force) +{ + int i, err; + + /* route incoming urbs to nirvana */ + snd_usb_endpoint_set_callback(ep, NULL, NULL, NULL); + + /* stop and unlink urbs */ + err = stop_urbs(ep, force, false); + if (err) + return err; + + wait_clear_urbs(ep); + + for (i = 0; i < ep->nurbs; i++) + release_urb_ctx(&ep->urb[i]); + + usb_free_coherent(ep->chip->dev, SYNC_URBS * 4, + ep->syncbuf, ep->sync_dma); + + ep->syncbuf = NULL; + ep->nurbs = 0; + return 0; +} + +/* + * configure a data endpoint + */ +static int data_ep_set_params(struct snd_usb_endpoint *ep) +{ + struct snd_usb_audio *chip = ep->chip; + unsigned int maxsize, minsize, packs_per_ms, max_packs_per_urb; + unsigned int max_packs_per_period, urbs_per_period, urb_packs; + unsigned int max_urbs, i; + const struct audioformat *fmt = ep->cur_audiofmt; + int frame_bits = ep->cur_frame_bytes * 8; + int tx_length_quirk = (has_tx_length_quirk(chip) && + usb_pipeout(ep->pipe)); + + usb_audio_dbg(chip, "Setting params for data EP 0x%x, pipe 0x%x\n", + ep->ep_num, ep->pipe); + + if (ep->cur_format == SNDRV_PCM_FORMAT_DSD_U16_LE && fmt->dsd_dop) { + /* + * When operating in DSD DOP mode, the size of a sample frame + * in hardware differs from the actual physical format width + * because we need to make room for the DOP markers. + */ + frame_bits += ep->cur_channels << 3; + } + + ep->datainterval = fmt->datainterval; + ep->stride = frame_bits >> 3; + + switch (ep->cur_format) { + case SNDRV_PCM_FORMAT_U8: + ep->silence_value = 0x80; + break; + case SNDRV_PCM_FORMAT_DSD_U8: + case SNDRV_PCM_FORMAT_DSD_U16_LE: + case SNDRV_PCM_FORMAT_DSD_U32_LE: + case SNDRV_PCM_FORMAT_DSD_U16_BE: + case SNDRV_PCM_FORMAT_DSD_U32_BE: + ep->silence_value = 0x69; + break; + default: + ep->silence_value = 0; + } + + /* assume max. frequency is 50% higher than nominal */ + ep->freqmax = ep->freqn + (ep->freqn >> 1); + /* Round up freqmax to nearest integer in order to calculate maximum + * packet size, which must represent a whole number of frames. + * This is accomplished by adding 0x0.ffff before converting the + * Q16.16 format into integer. + * In order to accurately calculate the maximum packet size when + * the data interval is more than 1 (i.e. ep->datainterval > 0), + * multiply by the data interval prior to rounding. For instance, + * a freqmax of 41 kHz will result in a max packet size of 6 (5.125) + * frames with a data interval of 1, but 11 (10.25) frames with a + * data interval of 2. + * (ep->freqmax << ep->datainterval overflows at 8.192 MHz for the + * maximum datainterval value of 3, at USB full speed, higher for + * USB high speed, noting that ep->freqmax is in units of + * frames per packet in Q16.16 format.) + */ + maxsize = (((ep->freqmax << ep->datainterval) + 0xffff) >> 16) * + (frame_bits >> 3); + if (tx_length_quirk) + maxsize += sizeof(__le32); /* Space for length descriptor */ + /* but wMaxPacketSize might reduce this */ + if (ep->maxpacksize && ep->maxpacksize < maxsize) { + /* whatever fits into a max. size packet */ + unsigned int data_maxsize = maxsize = ep->maxpacksize; + + if (tx_length_quirk) + /* Need to remove the length descriptor to calc freq */ + data_maxsize -= sizeof(__le32); + ep->freqmax = (data_maxsize / (frame_bits >> 3)) + << (16 - ep->datainterval); + } + + if (ep->fill_max) + ep->curpacksize = ep->maxpacksize; + else + ep->curpacksize = maxsize; + + if (snd_usb_get_speed(chip->dev) != USB_SPEED_FULL) { + packs_per_ms = 8 >> ep->datainterval; + max_packs_per_urb = MAX_PACKS_HS; + } else { + packs_per_ms = 1; + max_packs_per_urb = MAX_PACKS; + } + if (ep->sync_source && !ep->implicit_fb_sync) + max_packs_per_urb = min(max_packs_per_urb, + 1U << ep->sync_source->syncinterval); + max_packs_per_urb = max(1u, max_packs_per_urb >> ep->datainterval); + + /* + * Capture endpoints need to use small URBs because there's no way + * to tell in advance where the next period will end, and we don't + * want the next URB to complete much after the period ends. + * + * Playback endpoints with implicit sync much use the same parameters + * as their corresponding capture endpoint. + */ + if (usb_pipein(ep->pipe) || ep->implicit_fb_sync) { + + urb_packs = packs_per_ms; + /* + * Wireless devices can poll at a max rate of once per 4ms. + * For dataintervals less than 5, increase the packet count to + * allow the host controller to use bursting to fill in the + * gaps. + */ + if (snd_usb_get_speed(chip->dev) == USB_SPEED_WIRELESS) { + int interval = ep->datainterval; + while (interval < 5) { + urb_packs <<= 1; + ++interval; + } + } + /* make capture URBs <= 1 ms and smaller than a period */ + urb_packs = min(max_packs_per_urb, urb_packs); + while (urb_packs > 1 && urb_packs * maxsize >= ep->cur_period_bytes) + urb_packs >>= 1; + ep->nurbs = MAX_URBS; + + /* + * Playback endpoints without implicit sync are adjusted so that + * a period fits as evenly as possible in the smallest number of + * URBs. The total number of URBs is adjusted to the size of the + * ALSA buffer, subject to the MAX_URBS and MAX_QUEUE limits. + */ + } else { + /* determine how small a packet can be */ + minsize = (ep->freqn >> (16 - ep->datainterval)) * + (frame_bits >> 3); + /* with sync from device, assume it can be 12% lower */ + if (ep->sync_source) + minsize -= minsize >> 3; + minsize = max(minsize, 1u); + + /* how many packets will contain an entire ALSA period? */ + max_packs_per_period = DIV_ROUND_UP(ep->cur_period_bytes, minsize); + + /* how many URBs will contain a period? */ + urbs_per_period = DIV_ROUND_UP(max_packs_per_period, + max_packs_per_urb); + /* how many packets are needed in each URB? */ + urb_packs = DIV_ROUND_UP(max_packs_per_period, urbs_per_period); + + /* limit the number of frames in a single URB */ + ep->max_urb_frames = DIV_ROUND_UP(ep->cur_period_frames, + urbs_per_period); + + /* try to use enough URBs to contain an entire ALSA buffer */ + max_urbs = min((unsigned) MAX_URBS, + MAX_QUEUE * packs_per_ms / urb_packs); + ep->nurbs = min(max_urbs, urbs_per_period * ep->cur_buffer_periods); + } + + /* allocate and initialize data urbs */ + for (i = 0; i < ep->nurbs; i++) { + struct snd_urb_ctx *u = &ep->urb[i]; + u->index = i; + u->ep = ep; + u->packets = urb_packs; + u->buffer_size = maxsize * u->packets; + + if (fmt->fmt_type == UAC_FORMAT_TYPE_II) + u->packets++; /* for transfer delimiter */ + u->urb = usb_alloc_urb(u->packets, GFP_KERNEL); + if (!u->urb) + goto out_of_memory; + + u->urb->transfer_buffer = + usb_alloc_coherent(chip->dev, u->buffer_size, + GFP_KERNEL, &u->urb->transfer_dma); + if (!u->urb->transfer_buffer) + goto out_of_memory; + u->urb->pipe = ep->pipe; + u->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + u->urb->interval = 1 << ep->datainterval; + u->urb->context = u; + u->urb->complete = snd_complete_urb; + INIT_LIST_HEAD(&u->ready_list); + } + + return 0; + +out_of_memory: + release_urbs(ep, false); + return -ENOMEM; +} + +/* + * configure a sync endpoint + */ +static int sync_ep_set_params(struct snd_usb_endpoint *ep) +{ + struct snd_usb_audio *chip = ep->chip; + int i; + + usb_audio_dbg(chip, "Setting params for sync EP 0x%x, pipe 0x%x\n", + ep->ep_num, ep->pipe); + + ep->syncbuf = usb_alloc_coherent(chip->dev, SYNC_URBS * 4, + GFP_KERNEL, &ep->sync_dma); + if (!ep->syncbuf) + return -ENOMEM; + + ep->nurbs = SYNC_URBS; + for (i = 0; i < SYNC_URBS; i++) { + struct snd_urb_ctx *u = &ep->urb[i]; + u->index = i; + u->ep = ep; + u->packets = 1; + u->urb = usb_alloc_urb(1, GFP_KERNEL); + if (!u->urb) + goto out_of_memory; + u->urb->transfer_buffer = ep->syncbuf + i * 4; + u->urb->transfer_dma = ep->sync_dma + i * 4; + u->urb->transfer_buffer_length = 4; + u->urb->pipe = ep->pipe; + u->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + u->urb->number_of_packets = 1; + u->urb->interval = 1 << ep->syncinterval; + u->urb->context = u; + u->urb->complete = snd_complete_urb; + } + + return 0; + +out_of_memory: + release_urbs(ep, false); + return -ENOMEM; +} + +/* update the rate of the referred clock; return the actual rate */ +static int update_clock_ref_rate(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep) +{ + struct snd_usb_clock_ref *clock = ep->clock_ref; + int rate = ep->cur_rate; + + if (!clock || clock->rate == rate) + return rate; + if (clock->rate) { + if (atomic_read(&clock->locked)) + return clock->rate; + if (clock->rate != rate) { + usb_audio_err(chip, "Mismatched sample rate %d vs %d for EP 0x%x\n", + clock->rate, rate, ep->ep_num); + return clock->rate; + } + } + clock->rate = rate; + clock->need_setup = true; + return rate; +} + +/* + * snd_usb_endpoint_set_params: configure an snd_usb_endpoint + * + * It's called either from hw_params callback. + * Determine the number of URBs to be used on this endpoint. + * An endpoint must be configured before it can be started. + * An endpoint that is already running can not be reconfigured. + */ +int snd_usb_endpoint_set_params(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep) +{ + const struct audioformat *fmt = ep->cur_audiofmt; + int err = 0; + + mutex_lock(&chip->mutex); + if (!ep->need_setup) + goto unlock; + + /* release old buffers, if any */ + err = release_urbs(ep, false); + if (err < 0) + goto unlock; + + ep->datainterval = fmt->datainterval; + ep->maxpacksize = fmt->maxpacksize; + ep->fill_max = !!(fmt->attributes & UAC_EP_CS_ATTR_FILL_MAX); + + if (snd_usb_get_speed(chip->dev) == USB_SPEED_FULL) { + ep->freqn = get_usb_full_speed_rate(ep->cur_rate); + ep->pps = 1000 >> ep->datainterval; + } else { + ep->freqn = get_usb_high_speed_rate(ep->cur_rate); + ep->pps = 8000 >> ep->datainterval; + } + + ep->sample_rem = ep->cur_rate % ep->pps; + ep->packsize[0] = ep->cur_rate / ep->pps; + ep->packsize[1] = (ep->cur_rate + (ep->pps - 1)) / ep->pps; + + /* calculate the frequency in 16.16 format */ + ep->freqm = ep->freqn; + ep->freqshift = INT_MIN; + + ep->phase = 0; + + switch (ep->type) { + case SND_USB_ENDPOINT_TYPE_DATA: + err = data_ep_set_params(ep); + break; + case SND_USB_ENDPOINT_TYPE_SYNC: + err = sync_ep_set_params(ep); + break; + default: + err = -EINVAL; + } + + usb_audio_dbg(chip, "Set up %d URBS, ret=%d\n", ep->nurbs, err); + + if (err < 0) + goto unlock; + + /* some unit conversions in runtime */ + ep->maxframesize = ep->maxpacksize / ep->cur_frame_bytes; + ep->curframesize = ep->curpacksize / ep->cur_frame_bytes; + + err = update_clock_ref_rate(chip, ep); + if (err >= 0) { + ep->need_setup = false; + err = 0; + } + + unlock: + mutex_unlock(&chip->mutex); + return err; +} + +static int init_sample_rate(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep) +{ + struct snd_usb_clock_ref *clock = ep->clock_ref; + int rate, err; + + rate = update_clock_ref_rate(chip, ep); + if (rate < 0) + return rate; + if (clock && !clock->need_setup) + return 0; + + if (!ep->fixed_rate) { + err = snd_usb_init_sample_rate(chip, ep->cur_audiofmt, rate); + if (err < 0) { + if (clock) + clock->rate = 0; /* reset rate */ + return err; + } + } + + if (clock) + clock->need_setup = false; + return 0; +} + +/* + * snd_usb_endpoint_prepare: Prepare the endpoint + * + * This function sets up the EP to be fully usable state. + * It's called either from prepare callback. + * The function checks need_setup flag, and performs nothing unless needed, + * so it's safe to call this multiple times. + * + * This returns zero if unchanged, 1 if the configuration has changed, + * or a negative error code. + */ +int snd_usb_endpoint_prepare(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep) +{ + bool iface_first; + int err = 0; + + mutex_lock(&chip->mutex); + if (WARN_ON(!ep->iface_ref)) + goto unlock; + if (!ep->need_prepare) + goto unlock; + + /* If the interface has been already set up, just set EP parameters */ + if (!ep->iface_ref->need_setup) { + /* sample rate setup of UAC1 is per endpoint, and we need + * to update at each EP configuration + */ + if (ep->cur_audiofmt->protocol == UAC_VERSION_1) { + err = init_sample_rate(chip, ep); + if (err < 0) + goto unlock; + } + goto done; + } + + /* Need to deselect altsetting at first */ + endpoint_set_interface(chip, ep, false); + + /* Some UAC1 devices (e.g. Yamaha THR10) need the host interface + * to be set up before parameter setups + */ + iface_first = ep->cur_audiofmt->protocol == UAC_VERSION_1; + /* Workaround for devices that require the interface setup at first like UAC1 */ + if (chip->quirk_flags & QUIRK_FLAG_SET_IFACE_FIRST) + iface_first = true; + if (iface_first) { + err = endpoint_set_interface(chip, ep, true); + if (err < 0) + goto unlock; + } + + err = snd_usb_init_pitch(chip, ep->cur_audiofmt); + if (err < 0) + goto unlock; + + err = init_sample_rate(chip, ep); + if (err < 0) + goto unlock; + + err = snd_usb_select_mode_quirk(chip, ep->cur_audiofmt); + if (err < 0) + goto unlock; + + /* for UAC2/3, enable the interface altset here at last */ + if (!iface_first) { + err = endpoint_set_interface(chip, ep, true); + if (err < 0) + goto unlock; + } + + ep->iface_ref->need_setup = false; + + done: + ep->need_prepare = false; + err = 1; + +unlock: + mutex_unlock(&chip->mutex); + return err; +} + +/* get the current rate set to the given clock by any endpoint */ +int snd_usb_endpoint_get_clock_rate(struct snd_usb_audio *chip, int clock) +{ + struct snd_usb_clock_ref *ref; + int rate = 0; + + if (!clock) + return 0; + mutex_lock(&chip->mutex); + list_for_each_entry(ref, &chip->clock_ref_list, list) { + if (ref->clock == clock) { + rate = ref->rate; + break; + } + } + mutex_unlock(&chip->mutex); + return rate; +} + +/** + * snd_usb_endpoint_start: start an snd_usb_endpoint + * + * @ep: the endpoint to start + * + * A call to this function will increment the running count of the endpoint. + * In case it is not already running, the URBs for this endpoint will be + * submitted. Otherwise, this function does nothing. + * + * Must be balanced to calls of snd_usb_endpoint_stop(). + * + * Returns an error if the URB submission failed, 0 in all other cases. + */ +int snd_usb_endpoint_start(struct snd_usb_endpoint *ep) +{ + bool is_playback = usb_pipeout(ep->pipe); + int err; + unsigned int i; + + if (atomic_read(&ep->chip->shutdown)) + return -EBADFD; + + if (ep->sync_source) + WRITE_ONCE(ep->sync_source->sync_sink, ep); + + usb_audio_dbg(ep->chip, "Starting %s EP 0x%x (running %d)\n", + ep_type_name(ep->type), ep->ep_num, + atomic_read(&ep->running)); + + /* already running? */ + if (atomic_inc_return(&ep->running) != 1) + return 0; + + if (ep->clock_ref) + atomic_inc(&ep->clock_ref->locked); + + ep->active_mask = 0; + ep->unlink_mask = 0; + ep->phase = 0; + ep->sample_accum = 0; + + snd_usb_endpoint_start_quirk(ep); + + /* + * If this endpoint has a data endpoint as implicit feedback source, + * don't start the urbs here. Instead, mark them all as available, + * wait for the record urbs to return and queue the playback urbs + * from that context. + */ + + if (!ep_state_update(ep, EP_STATE_STOPPED, EP_STATE_RUNNING)) + goto __error; + + if (snd_usb_endpoint_implicit_feedback_sink(ep) && + !(ep->chip->quirk_flags & QUIRK_FLAG_PLAYBACK_FIRST)) { + usb_audio_dbg(ep->chip, "No URB submission due to implicit fb sync\n"); + i = 0; + goto fill_rest; + } + + for (i = 0; i < ep->nurbs; i++) { + struct urb *urb = ep->urb[i].urb; + + if (snd_BUG_ON(!urb)) + goto __error; + + if (is_playback) + err = prepare_outbound_urb(ep, urb->context, true); + else + err = prepare_inbound_urb(ep, urb->context); + if (err < 0) { + /* stop filling at applptr */ + if (err == -EAGAIN) + break; + usb_audio_dbg(ep->chip, + "EP 0x%x: failed to prepare urb: %d\n", + ep->ep_num, err); + goto __error; + } + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + usb_audio_err(ep->chip, + "cannot submit urb %d, error %d: %s\n", + i, err, usb_error_string(err)); + goto __error; + } + set_bit(i, &ep->active_mask); + atomic_inc(&ep->submitted_urbs); + } + + if (!i) { + usb_audio_dbg(ep->chip, "XRUN at starting EP 0x%x\n", + ep->ep_num); + goto __error; + } + + usb_audio_dbg(ep->chip, "%d URBs submitted for EP 0x%x\n", + i, ep->ep_num); + + fill_rest: + /* put the remaining URBs to ready list */ + if (is_playback) { + for (; i < ep->nurbs; i++) + push_back_to_ready_list(ep, ep->urb + i); + } + + return 0; + +__error: + snd_usb_endpoint_stop(ep, false); + return -EPIPE; +} + +/** + * snd_usb_endpoint_stop: stop an snd_usb_endpoint + * + * @ep: the endpoint to stop (may be NULL) + * @keep_pending: keep in-flight URBs + * + * A call to this function will decrement the running count of the endpoint. + * In case the last user has requested the endpoint stop, the URBs will + * actually be deactivated. + * + * Must be balanced to calls of snd_usb_endpoint_start(). + * + * The caller needs to synchronize the pending stop operation via + * snd_usb_endpoint_sync_pending_stop(). + */ +void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, bool keep_pending) +{ + if (!ep) + return; + + usb_audio_dbg(ep->chip, "Stopping %s EP 0x%x (running %d)\n", + ep_type_name(ep->type), ep->ep_num, + atomic_read(&ep->running)); + + if (snd_BUG_ON(!atomic_read(&ep->running))) + return; + + if (!atomic_dec_return(&ep->running)) { + if (ep->sync_source) + WRITE_ONCE(ep->sync_source->sync_sink, NULL); + stop_urbs(ep, false, keep_pending); + if (ep->clock_ref) + atomic_dec(&ep->clock_ref->locked); + + if (ep->chip->quirk_flags & QUIRK_FLAG_FORCE_IFACE_RESET && + usb_pipeout(ep->pipe)) { + ep->need_prepare = true; + if (ep->iface_ref) + ep->iface_ref->need_setup = true; + } + } +} + +/** + * snd_usb_endpoint_release: Tear down an snd_usb_endpoint + * + * @ep: the endpoint to release + * + * This function does not care for the endpoint's running count but will tear + * down all the streaming URBs immediately. + */ +void snd_usb_endpoint_release(struct snd_usb_endpoint *ep) +{ + release_urbs(ep, true); +} + +/** + * snd_usb_endpoint_free_all: Free the resources of an snd_usb_endpoint + * @chip: The chip + * + * This free all endpoints and those resources + */ +void snd_usb_endpoint_free_all(struct snd_usb_audio *chip) +{ + struct snd_usb_endpoint *ep, *en; + struct snd_usb_iface_ref *ip, *in; + struct snd_usb_clock_ref *cp, *cn; + + list_for_each_entry_safe(ep, en, &chip->ep_list, list) + kfree(ep); + + list_for_each_entry_safe(ip, in, &chip->iface_ref_list, list) + kfree(ip); + + list_for_each_entry_safe(cp, cn, &chip->clock_ref_list, list) + kfree(cp); +} + +/* + * snd_usb_handle_sync_urb: parse an USB sync packet + * + * @ep: the endpoint to handle the packet + * @sender: the sending endpoint + * @urb: the received packet + * + * This function is called from the context of an endpoint that received + * the packet and is used to let another endpoint object handle the payload. + */ +static void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep, + struct snd_usb_endpoint *sender, + const struct urb *urb) +{ + int shift; + unsigned int f; + unsigned long flags; + + snd_BUG_ON(ep == sender); + + /* + * In case the endpoint is operating in implicit feedback mode, prepare + * a new outbound URB that has the same layout as the received packet + * and add it to the list of pending urbs. queue_pending_output_urbs() + * will take care of them later. + */ + if (snd_usb_endpoint_implicit_feedback_sink(ep) && + atomic_read(&ep->running)) { + + /* implicit feedback case */ + int i, bytes = 0; + struct snd_urb_ctx *in_ctx; + struct snd_usb_packet_info *out_packet; + + in_ctx = urb->context; + + /* Count overall packet size */ + for (i = 0; i < in_ctx->packets; i++) + if (urb->iso_frame_desc[i].status == 0) + bytes += urb->iso_frame_desc[i].actual_length; + + /* + * skip empty packets. At least M-Audio's Fast Track Ultra stops + * streaming once it received a 0-byte OUT URB + */ + if (bytes == 0) + return; + + spin_lock_irqsave(&ep->lock, flags); + if (ep->next_packet_queued >= ARRAY_SIZE(ep->next_packet)) { + spin_unlock_irqrestore(&ep->lock, flags); + usb_audio_err(ep->chip, + "next package FIFO overflow EP 0x%x\n", + ep->ep_num); + notify_xrun(ep); + return; + } + + out_packet = next_packet_fifo_enqueue(ep); + + /* + * Iterate through the inbound packet and prepare the lengths + * for the output packet. The OUT packet we are about to send + * will have the same amount of payload bytes per stride as the + * IN packet we just received. Since the actual size is scaled + * by the stride, use the sender stride to calculate the length + * in case the number of channels differ between the implicitly + * fed-back endpoint and the synchronizing endpoint. + */ + + out_packet->packets = in_ctx->packets; + for (i = 0; i < in_ctx->packets; i++) { + if (urb->iso_frame_desc[i].status == 0) + out_packet->packet_size[i] = + urb->iso_frame_desc[i].actual_length / sender->stride; + else + out_packet->packet_size[i] = 0; + } + + spin_unlock_irqrestore(&ep->lock, flags); + snd_usb_queue_pending_output_urbs(ep, false); + + return; + } + + /* + * process after playback sync complete + * + * Full speed devices report feedback values in 10.14 format as samples + * per frame, high speed devices in 16.16 format as samples per + * microframe. + * + * Because the Audio Class 1 spec was written before USB 2.0, many high + * speed devices use a wrong interpretation, some others use an + * entirely different format. + * + * Therefore, we cannot predict what format any particular device uses + * and must detect it automatically. + */ + + if (urb->iso_frame_desc[0].status != 0 || + urb->iso_frame_desc[0].actual_length < 3) + return; + + f = le32_to_cpup(urb->transfer_buffer); + if (urb->iso_frame_desc[0].actual_length == 3) + f &= 0x00ffffff; + else + f &= 0x0fffffff; + + if (f == 0) + return; + + if (unlikely(sender->tenor_fb_quirk)) { + /* + * Devices based on Tenor 8802 chipsets (TEAC UD-H01 + * and others) sometimes change the feedback value + * by +/- 0x1.0000. + */ + if (f < ep->freqn - 0x8000) + f += 0xf000; + else if (f > ep->freqn + 0x8000) + f -= 0xf000; + } else if (unlikely(ep->freqshift == INT_MIN)) { + /* + * The first time we see a feedback value, determine its format + * by shifting it left or right until it matches the nominal + * frequency value. This assumes that the feedback does not + * differ from the nominal value more than +50% or -25%. + */ + shift = 0; + while (f < ep->freqn - ep->freqn / 4) { + f <<= 1; + shift++; + } + while (f > ep->freqn + ep->freqn / 2) { + f >>= 1; + shift--; + } + ep->freqshift = shift; + } else if (ep->freqshift >= 0) + f <<= ep->freqshift; + else + f >>= -ep->freqshift; + + if (likely(f >= ep->freqn - ep->freqn / 8 && f <= ep->freqmax)) { + /* + * If the frequency looks valid, set it. + * This value is referred to in prepare_playback_urb(). + */ + spin_lock_irqsave(&ep->lock, flags); + ep->freqm = f; + spin_unlock_irqrestore(&ep->lock, flags); + } else { + /* + * Out of range; maybe the shift value is wrong. + * Reset it so that we autodetect again the next time. + */ + ep->freqshift = INT_MIN; + } +} + diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h new file mode 100644 index 000000000..c09f68ce0 --- /dev/null +++ b/sound/usb/endpoint.h @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_ENDPOINT_H +#define __USBAUDIO_ENDPOINT_H + +#define SND_USB_ENDPOINT_TYPE_DATA 0 +#define SND_USB_ENDPOINT_TYPE_SYNC 1 + +struct snd_usb_endpoint *snd_usb_get_endpoint(struct snd_usb_audio *chip, + int ep_num); + +int snd_usb_add_endpoint(struct snd_usb_audio *chip, int ep_num, int type); + +struct snd_usb_endpoint * +snd_usb_endpoint_open(struct snd_usb_audio *chip, + const struct audioformat *fp, + const struct snd_pcm_hw_params *params, + bool is_sync_ep, + bool fixed_rate); +void snd_usb_endpoint_close(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep); +int snd_usb_endpoint_set_params(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep); +int snd_usb_endpoint_prepare(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep); +int snd_usb_endpoint_get_clock_rate(struct snd_usb_audio *chip, int clock); + +bool snd_usb_endpoint_compatible(struct snd_usb_audio *chip, + struct snd_usb_endpoint *ep, + const struct audioformat *fp, + const struct snd_pcm_hw_params *params); + +void snd_usb_endpoint_set_sync(struct snd_usb_audio *chip, + struct snd_usb_endpoint *data_ep, + struct snd_usb_endpoint *sync_ep); +void snd_usb_endpoint_set_callback(struct snd_usb_endpoint *ep, + int (*prepare)(struct snd_usb_substream *subs, + struct urb *urb, + bool in_stream_lock), + void (*retire)(struct snd_usb_substream *subs, + struct urb *urb), + struct snd_usb_substream *data_subs); + +int snd_usb_endpoint_start(struct snd_usb_endpoint *ep); +void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, bool keep_pending); +void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep); +void snd_usb_endpoint_suspend(struct snd_usb_endpoint *ep); +int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep); +void snd_usb_endpoint_release(struct snd_usb_endpoint *ep); +void snd_usb_endpoint_free_all(struct snd_usb_audio *chip); + +int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep); +int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep, + struct snd_urb_ctx *ctx, int idx, + unsigned int avail); +int snd_usb_queue_pending_output_urbs(struct snd_usb_endpoint *ep, + bool in_stream_lock); + +#endif /* __USBAUDIO_ENDPOINT_H */ diff --git a/sound/usb/format.c b/sound/usb/format.c new file mode 100644 index 000000000..ab5fed9f5 --- /dev/null +++ b/sound/usb/format.c @@ -0,0 +1,824 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> +#include <linux/usb/audio-v3.h> + +#include <sound/core.h> +#include <sound/pcm.h> + +#include "usbaudio.h" +#include "card.h" +#include "quirks.h" +#include "helper.h" +#include "clock.h" +#include "format.h" + +/* + * parse the audio format type I descriptor + * and returns the corresponding pcm format + * + * @dev: usb device + * @fp: audioformat record + * @format: the format tag (wFormatTag) + * @fmt: the format type descriptor (v1/v2) or AudioStreaming descriptor (v3) + */ +static u64 parse_audio_format_i_type(struct snd_usb_audio *chip, + struct audioformat *fp, + u64 format, void *_fmt) +{ + int sample_width, sample_bytes; + u64 pcm_formats = 0; + + switch (fp->protocol) { + case UAC_VERSION_1: + default: { + struct uac_format_type_i_discrete_descriptor *fmt = _fmt; + if (format >= 64) { + usb_audio_info(chip, + "%u:%d: invalid format type 0x%llx is detected, processed as PCM\n", + fp->iface, fp->altsetting, format); + format = UAC_FORMAT_TYPE_I_PCM; + } + sample_width = fmt->bBitResolution; + sample_bytes = fmt->bSubframeSize; + format = 1ULL << format; + break; + } + + case UAC_VERSION_2: { + struct uac_format_type_i_ext_descriptor *fmt = _fmt; + sample_width = fmt->bBitResolution; + sample_bytes = fmt->bSubslotSize; + + if (format & UAC2_FORMAT_TYPE_I_RAW_DATA) { + pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; + /* flag potentially raw DSD capable altsettings */ + fp->dsd_raw = true; + } + + format <<= 1; + break; + } + case UAC_VERSION_3: { + struct uac3_as_header_descriptor *as = _fmt; + + sample_width = as->bBitResolution; + sample_bytes = as->bSubslotSize; + + if (format & UAC3_FORMAT_TYPE_I_RAW_DATA) + pcm_formats |= SNDRV_PCM_FMTBIT_SPECIAL; + + format <<= 1; + break; + } + } + + fp->fmt_bits = sample_width; + + if ((pcm_formats == 0) && + (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) { + /* some devices don't define this correctly... */ + usb_audio_info(chip, "%u:%d : format type 0 is detected, processed as PCM\n", + fp->iface, fp->altsetting); + format = 1 << UAC_FORMAT_TYPE_I_PCM; + } + if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) { + if (((chip->usb_id == USB_ID(0x0582, 0x0016)) || + /* Edirol SD-90 */ + (chip->usb_id == USB_ID(0x0582, 0x000c))) && + /* Roland SC-D70 */ + sample_width == 24 && sample_bytes == 2) + sample_bytes = 3; + else if (sample_width > sample_bytes * 8) { + usb_audio_info(chip, "%u:%d : sample bitwidth %d in over sample bytes %d\n", + fp->iface, fp->altsetting, + sample_width, sample_bytes); + } + /* check the format byte size */ + switch (sample_bytes) { + case 1: + pcm_formats |= SNDRV_PCM_FMTBIT_S8; + break; + case 2: + if (snd_usb_is_big_endian_format(chip, fp)) + pcm_formats |= SNDRV_PCM_FMTBIT_S16_BE; /* grrr, big endian!! */ + else + pcm_formats |= SNDRV_PCM_FMTBIT_S16_LE; + break; + case 3: + if (snd_usb_is_big_endian_format(chip, fp)) + pcm_formats |= SNDRV_PCM_FMTBIT_S24_3BE; /* grrr, big endian!! */ + else + pcm_formats |= SNDRV_PCM_FMTBIT_S24_3LE; + break; + case 4: + pcm_formats |= SNDRV_PCM_FMTBIT_S32_LE; + break; + default: + usb_audio_info(chip, + "%u:%d : unsupported sample bitwidth %d in %d bytes\n", + fp->iface, fp->altsetting, + sample_width, sample_bytes); + break; + } + } + if (format & (1 << UAC_FORMAT_TYPE_I_PCM8)) { + /* Dallas DS4201 workaround: it advertises U8 format, but really + supports S8. */ + if (chip->usb_id == USB_ID(0x04fa, 0x4201)) + pcm_formats |= SNDRV_PCM_FMTBIT_S8; + else + pcm_formats |= SNDRV_PCM_FMTBIT_U8; + } + if (format & (1 << UAC_FORMAT_TYPE_I_IEEE_FLOAT)) { + pcm_formats |= SNDRV_PCM_FMTBIT_FLOAT_LE; + } + if (format & (1 << UAC_FORMAT_TYPE_I_ALAW)) { + pcm_formats |= SNDRV_PCM_FMTBIT_A_LAW; + } + if (format & (1 << UAC_FORMAT_TYPE_I_MULAW)) { + pcm_formats |= SNDRV_PCM_FMTBIT_MU_LAW; + } + if (format & ~0x3f) { + usb_audio_info(chip, + "%u:%d : unsupported format bits %#llx\n", + fp->iface, fp->altsetting, format); + } + + pcm_formats |= snd_usb_interface_dsd_format_quirks(chip, fp, sample_bytes); + + return pcm_formats; +} + +static int set_fixed_rate(struct audioformat *fp, int rate, int rate_bits) +{ + kfree(fp->rate_table); + fp->rate_table = kmalloc(sizeof(int), GFP_KERNEL); + if (!fp->rate_table) + return -ENOMEM; + fp->nr_rates = 1; + fp->rate_min = rate; + fp->rate_max = rate; + fp->rates = rate_bits; + fp->rate_table[0] = rate; + return 0; +} + +/* set up rate_min, rate_max and rates from the rate table */ +static void set_rate_table_min_max(struct audioformat *fp) +{ + unsigned int rate; + int i; + + fp->rate_min = INT_MAX; + fp->rate_max = 0; + fp->rates = 0; + for (i = 0; i < fp->nr_rates; i++) { + rate = fp->rate_table[i]; + fp->rate_min = min(fp->rate_min, rate); + fp->rate_max = max(fp->rate_max, rate); + fp->rates |= snd_pcm_rate_to_rate_bit(rate); + } +} + +/* + * parse the format descriptor and stores the possible sample rates + * on the audioformat table (audio class v1). + * + * @dev: usb device + * @fp: audioformat record + * @fmt: the format descriptor + * @offset: the start offset of descriptor pointing the rate type + * (7 for type I and II, 8 for type II) + */ +static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audioformat *fp, + unsigned char *fmt, int offset) +{ + int nr_rates = fmt[offset]; + + if (fmt[0] < offset + 1 + 3 * (nr_rates ? nr_rates : 2)) { + usb_audio_err(chip, + "%u:%d : invalid UAC_FORMAT_TYPE desc\n", + fp->iface, fp->altsetting); + return -EINVAL; + } + + if (nr_rates) { + /* + * build the rate table and bitmap flags + */ + int r, idx; + + fp->rate_table = kmalloc_array(nr_rates, sizeof(int), + GFP_KERNEL); + if (fp->rate_table == NULL) + return -ENOMEM; + + fp->nr_rates = 0; + for (r = 0, idx = offset + 1; r < nr_rates; r++, idx += 3) { + unsigned int rate = combine_triple(&fmt[idx]); + if (!rate) + continue; + /* C-Media CM6501 mislabels its 96 kHz altsetting */ + /* Terratec Aureon 7.1 USB C-Media 6206, too */ + /* Ozone Z90 USB C-Media, too */ + if (rate == 48000 && nr_rates == 1 && + (chip->usb_id == USB_ID(0x0d8c, 0x0201) || + chip->usb_id == USB_ID(0x0d8c, 0x0102) || + chip->usb_id == USB_ID(0x0d8c, 0x0078) || + chip->usb_id == USB_ID(0x0ccd, 0x00b1)) && + fp->altsetting == 5 && fp->maxpacksize == 392) + rate = 96000; + /* Creative VF0420/VF0470 Live Cams report 16 kHz instead of 8kHz */ + if (rate == 16000 && + (chip->usb_id == USB_ID(0x041e, 0x4064) || + chip->usb_id == USB_ID(0x041e, 0x4068))) + rate = 8000; + + fp->rate_table[fp->nr_rates++] = rate; + } + if (!fp->nr_rates) { + usb_audio_info(chip, + "%u:%d: All rates were zero\n", + fp->iface, fp->altsetting); + return -EINVAL; + } + set_rate_table_min_max(fp); + } else { + /* continuous rates */ + fp->rates = SNDRV_PCM_RATE_CONTINUOUS; + fp->rate_min = combine_triple(&fmt[offset + 1]); + fp->rate_max = combine_triple(&fmt[offset + 4]); + } + + /* Jabra Evolve 65 headset */ + if (chip->usb_id == USB_ID(0x0b0e, 0x030b)) { + /* only 48kHz for playback while keeping 16kHz for capture */ + if (fp->nr_rates != 1) + return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); + } + + return 0; +} + + +/* + * Presonus Studio 1810c supports a limited set of sampling + * rates per altsetting but reports the full set each time. + * If we don't filter out the unsupported rates and attempt + * to configure the card, it will hang refusing to do any + * further audio I/O until a hard reset is performed. + * + * The list of supported rates per altsetting (set of available + * I/O channels) is described in the owner's manual, section 2.2. + */ +static bool s1810c_valid_sample_rate(struct audioformat *fp, + unsigned int rate) +{ + switch (fp->altsetting) { + case 1: + /* All ADAT ports available */ + return rate <= 48000; + case 2: + /* Half of ADAT ports available */ + return (rate == 88200 || rate == 96000); + case 3: + /* Analog I/O only (no S/PDIF nor ADAT) */ + return rate >= 176400; + default: + return false; + } + return false; +} + +/* + * Many Focusrite devices supports a limited set of sampling rates per + * altsetting. Maximum rate is exposed in the last 4 bytes of Format Type + * descriptor which has a non-standard bLength = 10. + */ +static bool focusrite_valid_sample_rate(struct snd_usb_audio *chip, + struct audioformat *fp, + unsigned int rate) +{ + struct usb_interface *iface; + struct usb_host_interface *alts; + unsigned char *fmt; + unsigned int max_rate; + + iface = usb_ifnum_to_if(chip->dev, fp->iface); + if (!iface) + return true; + + alts = &iface->altsetting[fp->altset_idx]; + fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, UAC_FORMAT_TYPE); + if (!fmt) + return true; + + if (fmt[0] == 10) { /* bLength */ + max_rate = combine_quad(&fmt[6]); + + /* Validate max rate */ + if (max_rate != 48000 && + max_rate != 96000 && + max_rate != 192000 && + max_rate != 384000) { + + usb_audio_info(chip, + "%u:%d : unexpected max rate: %u\n", + fp->iface, fp->altsetting, max_rate); + + return true; + } + + return rate <= max_rate; + } + + return true; +} + +/* + * Helper function to walk the array of sample rate triplets reported by + * the device. The problem is that we need to parse whole array first to + * get to know how many sample rates we have to expect. + * Then fp->rate_table can be allocated and filled. + */ +static int parse_uac2_sample_rate_range(struct snd_usb_audio *chip, + struct audioformat *fp, int nr_triplets, + const unsigned char *data) +{ + int i, nr_rates = 0; + + for (i = 0; i < nr_triplets; i++) { + int min = combine_quad(&data[2 + 12 * i]); + int max = combine_quad(&data[6 + 12 * i]); + int res = combine_quad(&data[10 + 12 * i]); + unsigned int rate; + + if ((max < 0) || (min < 0) || (res < 0) || (max < min)) + continue; + + /* + * for ranges with res == 1, we announce a continuous sample + * rate range, and this function should return 0 for no further + * parsing. + */ + if (res == 1) { + fp->rate_min = min; + fp->rate_max = max; + fp->rates = SNDRV_PCM_RATE_CONTINUOUS; + return 0; + } + + for (rate = min; rate <= max; rate += res) { + + /* Filter out invalid rates on Presonus Studio 1810c */ + if (chip->usb_id == USB_ID(0x194f, 0x010c) && + !s1810c_valid_sample_rate(fp, rate)) + goto skip_rate; + + /* Filter out invalid rates on Focusrite devices */ + if (USB_ID_VENDOR(chip->usb_id) == 0x1235 && + !focusrite_valid_sample_rate(chip, fp, rate)) + goto skip_rate; + + if (fp->rate_table) + fp->rate_table[nr_rates] = rate; + nr_rates++; + if (nr_rates >= MAX_NR_RATES) { + usb_audio_err(chip, "invalid uac2 rates\n"); + break; + } + +skip_rate: + /* avoid endless loop */ + if (res == 0) + break; + } + } + + return nr_rates; +} + +/* Line6 Helix series and the Rode Rodecaster Pro don't support the + * UAC2_CS_RANGE usb function call. Return a static table of known + * clock rates. + */ +static int line6_parse_audio_format_rates_quirk(struct snd_usb_audio *chip, + struct audioformat *fp) +{ + switch (chip->usb_id) { + case USB_ID(0x0e41, 0x4241): /* Line6 Helix */ + case USB_ID(0x0e41, 0x4242): /* Line6 Helix Rack */ + case USB_ID(0x0e41, 0x4244): /* Line6 Helix LT */ + case USB_ID(0x0e41, 0x4246): /* Line6 HX-Stomp */ + case USB_ID(0x0e41, 0x4253): /* Line6 HX-Stomp XL */ + case USB_ID(0x0e41, 0x4247): /* Line6 Pod Go */ + case USB_ID(0x0e41, 0x4248): /* Line6 Helix >= fw 2.82 */ + case USB_ID(0x0e41, 0x4249): /* Line6 Helix Rack >= fw 2.82 */ + case USB_ID(0x0e41, 0x424a): /* Line6 Helix LT >= fw 2.82 */ + case USB_ID(0x0e41, 0x424b): /* Line6 Pod Go */ + case USB_ID(0x19f7, 0x0011): /* Rode Rodecaster Pro */ + return set_fixed_rate(fp, 48000, SNDRV_PCM_RATE_48000); + } + + return -ENODEV; +} + +/* check whether the given altsetting is supported for the already set rate */ +static bool check_valid_altsetting_v2v3(struct snd_usb_audio *chip, int iface, + int altsetting) +{ + struct usb_device *dev = chip->dev; + __le64 raw_data = 0; + u64 data; + int err; + + /* we assume 64bit is enough for any altsettings */ + if (snd_BUG_ON(altsetting >= 64 - 8)) + return false; + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_AS_VAL_ALT_SETTINGS << 8, + iface, &raw_data, sizeof(raw_data)); + if (err < 0) + return false; + + data = le64_to_cpu(raw_data); + /* first byte contains the bitmap size */ + if ((data & 0xff) * 8 < altsetting) + return false; + if (data & (1ULL << (altsetting + 8))) + return true; + + return false; +} + +/* + * Validate each sample rate with the altsetting + * Rebuild the rate table if only partial values are valid + */ +static int validate_sample_rate_table_v2v3(struct snd_usb_audio *chip, + struct audioformat *fp, + int clock) +{ + struct usb_device *dev = chip->dev; + unsigned int *table; + unsigned int nr_rates; + int i, err; + + /* performing the rate verification may lead to unexpected USB bus + * behavior afterwards by some unknown reason. Do this only for the + * known devices. + */ + if (!(chip->quirk_flags & QUIRK_FLAG_VALIDATE_RATES)) + return 0; /* don't perform the validation as default */ + + table = kcalloc(fp->nr_rates, sizeof(*table), GFP_KERNEL); + if (!table) + return -ENOMEM; + + /* clear the interface altsetting at first */ + usb_set_interface(dev, fp->iface, 0); + + nr_rates = 0; + for (i = 0; i < fp->nr_rates; i++) { + err = snd_usb_set_sample_rate_v2v3(chip, fp, clock, + fp->rate_table[i]); + if (err < 0) + continue; + + if (check_valid_altsetting_v2v3(chip, fp->iface, fp->altsetting)) + table[nr_rates++] = fp->rate_table[i]; + } + + if (!nr_rates) { + usb_audio_dbg(chip, + "No valid sample rate available for %d:%d, assuming a firmware bug\n", + fp->iface, fp->altsetting); + nr_rates = fp->nr_rates; /* continue as is */ + } + + if (fp->nr_rates == nr_rates) { + kfree(table); + return 0; + } + + kfree(fp->rate_table); + fp->rate_table = table; + fp->nr_rates = nr_rates; + return 0; +} + +/* + * parse the format descriptor and stores the possible sample rates + * on the audioformat table (audio class v2 and v3). + */ +static int parse_audio_format_rates_v2v3(struct snd_usb_audio *chip, + struct audioformat *fp) +{ + struct usb_device *dev = chip->dev; + unsigned char tmp[2], *data; + int nr_triplets, data_size, ret = 0, ret_l6; + int clock = snd_usb_clock_find_source(chip, fp, false); + + if (clock < 0) { + dev_err(&dev->dev, + "%s(): unable to find clock source (clock %d)\n", + __func__, clock); + goto err; + } + + /* get the number of sample rates first by only fetching 2 bytes */ + ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), + tmp, sizeof(tmp)); + + if (ret < 0) { + /* line6 helix devices don't support UAC2_CS_CONTROL_SAM_FREQ call */ + ret_l6 = line6_parse_audio_format_rates_quirk(chip, fp); + if (ret_l6 == -ENODEV) { + /* no line6 device found continue showing the error */ + dev_err(&dev->dev, + "%s(): unable to retrieve number of sample rates (clock %d)\n", + __func__, clock); + goto err; + } + if (ret_l6 == 0) { + dev_info(&dev->dev, + "%s(): unable to retrieve number of sample rates: set it to a predefined value (clock %d).\n", + __func__, clock); + return 0; + } + ret = ret_l6; + goto err; + } + + nr_triplets = (tmp[1] << 8) | tmp[0]; + data_size = 2 + 12 * nr_triplets; + data = kzalloc(data_size, GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto err; + } + + /* now get the full information */ + ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + UAC2_CS_CONTROL_SAM_FREQ << 8, + snd_usb_ctrl_intf(chip) | (clock << 8), + data, data_size); + + if (ret < 0) { + dev_err(&dev->dev, + "%s(): unable to retrieve sample rate range (clock %d)\n", + __func__, clock); + ret = -EINVAL; + goto err_free; + } + + /* Call the triplet parser, and make sure fp->rate_table is NULL. + * We just use the return value to know how many sample rates we + * will have to deal with. */ + kfree(fp->rate_table); + fp->rate_table = NULL; + fp->nr_rates = parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); + + if (fp->nr_rates == 0) { + /* SNDRV_PCM_RATE_CONTINUOUS */ + ret = 0; + goto err_free; + } + + fp->rate_table = kmalloc_array(fp->nr_rates, sizeof(int), GFP_KERNEL); + if (!fp->rate_table) { + ret = -ENOMEM; + goto err_free; + } + + /* Call the triplet parser again, but this time, fp->rate_table is + * allocated, so the rates will be stored */ + parse_uac2_sample_rate_range(chip, fp, nr_triplets, data); + + ret = validate_sample_rate_table_v2v3(chip, fp, clock); + if (ret < 0) + goto err_free; + + set_rate_table_min_max(fp); + +err_free: + kfree(data); +err: + return ret; +} + +/* + * parse the format type I and III descriptors + */ +static int parse_audio_format_i(struct snd_usb_audio *chip, + struct audioformat *fp, u64 format, + void *_fmt) +{ + snd_pcm_format_t pcm_format; + unsigned int fmt_type; + int ret; + + switch (fp->protocol) { + default: + case UAC_VERSION_1: + case UAC_VERSION_2: { + struct uac_format_type_i_continuous_descriptor *fmt = _fmt; + + fmt_type = fmt->bFormatType; + break; + } + case UAC_VERSION_3: { + /* fp->fmt_type is already set in this case */ + fmt_type = fp->fmt_type; + break; + } + } + + if (fmt_type == UAC_FORMAT_TYPE_III) { + /* FIXME: the format type is really IECxxx + * but we give normal PCM format to get the existing + * apps working... + */ + switch (chip->usb_id) { + + case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ + if (chip->setup == 0x00 && + fp->altsetting == 6) + pcm_format = SNDRV_PCM_FORMAT_S16_BE; + else + pcm_format = SNDRV_PCM_FORMAT_S16_LE; + break; + default: + pcm_format = SNDRV_PCM_FORMAT_S16_LE; + } + fp->formats = pcm_format_to_bits(pcm_format); + } else { + fp->formats = parse_audio_format_i_type(chip, fp, format, _fmt); + if (!fp->formats) + return -EINVAL; + } + + /* gather possible sample rates */ + /* audio class v1 reports possible sample rates as part of the + * proprietary class specific descriptor. + * audio class v2 uses class specific EP0 range requests for that. + */ + switch (fp->protocol) { + default: + case UAC_VERSION_1: { + struct uac_format_type_i_continuous_descriptor *fmt = _fmt; + + fp->channels = fmt->bNrChannels; + ret = parse_audio_format_rates_v1(chip, fp, (unsigned char *) fmt, 7); + break; + } + case UAC_VERSION_2: + case UAC_VERSION_3: { + /* fp->channels is already set in this case */ + ret = parse_audio_format_rates_v2v3(chip, fp); + break; + } + } + + if (fp->channels < 1) { + usb_audio_err(chip, + "%u:%d : invalid channels %d\n", + fp->iface, fp->altsetting, fp->channels); + return -EINVAL; + } + + return ret; +} + +/* + * parse the format type II descriptor + */ +static int parse_audio_format_ii(struct snd_usb_audio *chip, + struct audioformat *fp, + u64 format, void *_fmt) +{ + int brate, framesize, ret; + + switch (format) { + case UAC_FORMAT_TYPE_II_AC3: + /* FIXME: there is no AC3 format defined yet */ + // fp->formats = SNDRV_PCM_FMTBIT_AC3; + fp->formats = SNDRV_PCM_FMTBIT_U8; /* temporary hack to receive byte streams */ + break; + case UAC_FORMAT_TYPE_II_MPEG: + fp->formats = SNDRV_PCM_FMTBIT_MPEG; + break; + default: + usb_audio_info(chip, + "%u:%d : unknown format tag %#llx is detected. processed as MPEG.\n", + fp->iface, fp->altsetting, format); + fp->formats = SNDRV_PCM_FMTBIT_MPEG; + break; + } + + fp->channels = 1; + + switch (fp->protocol) { + default: + case UAC_VERSION_1: { + struct uac_format_type_ii_discrete_descriptor *fmt = _fmt; + brate = le16_to_cpu(fmt->wMaxBitRate); + framesize = le16_to_cpu(fmt->wSamplesPerFrame); + usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); + fp->frame_size = framesize; + ret = parse_audio_format_rates_v1(chip, fp, _fmt, 8); /* fmt[8..] sample rates */ + break; + } + case UAC_VERSION_2: { + struct uac_format_type_ii_ext_descriptor *fmt = _fmt; + brate = le16_to_cpu(fmt->wMaxBitRate); + framesize = le16_to_cpu(fmt->wSamplesPerFrame); + usb_audio_info(chip, "found format II with max.bitrate = %d, frame size=%d\n", brate, framesize); + fp->frame_size = framesize; + ret = parse_audio_format_rates_v2v3(chip, fp); + break; + } + } + + return ret; +} + +int snd_usb_parse_audio_format(struct snd_usb_audio *chip, + struct audioformat *fp, u64 format, + struct uac_format_type_i_continuous_descriptor *fmt, + int stream) +{ + int err; + + switch (fmt->bFormatType) { + case UAC_FORMAT_TYPE_I: + case UAC_FORMAT_TYPE_III: + err = parse_audio_format_i(chip, fp, format, fmt); + break; + case UAC_FORMAT_TYPE_II: + err = parse_audio_format_ii(chip, fp, format, fmt); + break; + default: + usb_audio_info(chip, + "%u:%d : format type %d is not supported yet\n", + fp->iface, fp->altsetting, + fmt->bFormatType); + return -ENOTSUPP; + } + fp->fmt_type = fmt->bFormatType; + if (err < 0) + return err; +#if 1 + /* FIXME: temporary hack for extigy/audigy 2 nx/zs */ + /* extigy apparently supports sample rates other than 48k + * but not in ordinary way. so we enable only 48k atm. + */ + if (chip->usb_id == USB_ID(0x041e, 0x3000) || + chip->usb_id == USB_ID(0x041e, 0x3020) || + chip->usb_id == USB_ID(0x041e, 0x3061)) { + if (fmt->bFormatType == UAC_FORMAT_TYPE_I && + fp->rates != SNDRV_PCM_RATE_48000 && + fp->rates != SNDRV_PCM_RATE_96000) + return -ENOTSUPP; + } +#endif + return 0; +} + +int snd_usb_parse_audio_format_v3(struct snd_usb_audio *chip, + struct audioformat *fp, + struct uac3_as_header_descriptor *as, + int stream) +{ + u64 format = le64_to_cpu(as->bmFormats); + int err; + + /* + * Type I format bits are D0..D6 + * This test works because type IV is not supported + */ + if (format & 0x7f) + fp->fmt_type = UAC_FORMAT_TYPE_I; + else + fp->fmt_type = UAC_FORMAT_TYPE_III; + + err = parse_audio_format_i(chip, fp, format, as); + if (err < 0) + return err; + + return 0; +} diff --git a/sound/usb/format.h b/sound/usb/format.h new file mode 100644 index 000000000..e70171892 --- /dev/null +++ b/sound/usb/format.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_FORMAT_H +#define __USBAUDIO_FORMAT_H + +int snd_usb_parse_audio_format(struct snd_usb_audio *chip, + struct audioformat *fp, u64 format, + struct uac_format_type_i_continuous_descriptor *fmt, + int stream); + +int snd_usb_parse_audio_format_v3(struct snd_usb_audio *chip, + struct audioformat *fp, + struct uac3_as_header_descriptor *as, + int stream); +#endif /* __USBAUDIO_FORMAT_H */ diff --git a/sound/usb/helper.c b/sound/usb/helper.c new file mode 100644 index 000000000..a4410267b --- /dev/null +++ b/sound/usb/helper.c @@ -0,0 +1,133 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/usb.h> + +#include "usbaudio.h" +#include "helper.h" +#include "quirks.h" + +/* + * combine bytes and get an integer value + */ +unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size) +{ + switch (size) { + case 1: return *bytes; + case 2: return combine_word(bytes); + case 3: return combine_triple(bytes); + case 4: return combine_quad(bytes); + default: return 0; + } +} + +/* + * parse descriptor buffer and return the pointer starting the given + * descriptor type. + */ +void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype) +{ + u8 *p, *end, *next; + + p = descstart; + end = p + desclen; + for (; p < end;) { + if (p[0] < 2) + return NULL; + next = p + p[0]; + if (next > end) + return NULL; + if (p[1] == dtype && (!after || (void *)p > after)) { + return p; + } + p = next; + } + return NULL; +} + +/* + * find a class-specified interface descriptor with the given subtype. + */ +void *snd_usb_find_csint_desc(void *buffer, int buflen, void *after, u8 dsubtype) +{ + unsigned char *p = after; + + while ((p = snd_usb_find_desc(buffer, buflen, p, + USB_DT_CS_INTERFACE)) != NULL) { + if (p[0] >= 3 && p[2] == dsubtype) + return p; + } + return NULL; +} + +/* + * Wrapper for usb_control_msg(). + * Allocates a temp buffer to prevent dmaing from/to the stack. + */ +int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, + __u8 requesttype, __u16 value, __u16 index, void *data, + __u16 size) +{ + int err; + void *buf = NULL; + int timeout; + + if (usb_pipe_type_check(dev, pipe)) + return -EINVAL; + + if (size > 0) { + buf = kmemdup(data, size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + } + + if (requesttype & USB_DIR_IN) + timeout = USB_CTRL_GET_TIMEOUT; + else + timeout = USB_CTRL_SET_TIMEOUT; + + err = usb_control_msg(dev, pipe, request, requesttype, + value, index, buf, size, timeout); + + if (size > 0) { + memcpy(data, buf, size); + kfree(buf); + } + + snd_usb_ctl_msg_quirk(dev, pipe, request, requesttype, + value, index, data, size); + + return err; +} + +unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip, + struct usb_host_interface *alts) +{ + switch (snd_usb_get_speed(chip->dev)) { + case USB_SPEED_HIGH: + case USB_SPEED_WIRELESS: + case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: + if (get_endpoint(alts, 0)->bInterval >= 1 && + get_endpoint(alts, 0)->bInterval <= 4) + return get_endpoint(alts, 0)->bInterval - 1; + break; + default: + break; + } + return 0; +} + +struct usb_host_interface * +snd_usb_get_host_interface(struct snd_usb_audio *chip, int ifnum, int altsetting) +{ + struct usb_interface *iface; + + iface = usb_ifnum_to_if(chip->dev, ifnum); + if (!iface) + return NULL; + return usb_altnum_to_altsetting(iface, altsetting); +} diff --git a/sound/usb/helper.h b/sound/usb/helper.h new file mode 100644 index 000000000..e2b51ec96 --- /dev/null +++ b/sound/usb/helper.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_HELPER_H +#define __USBAUDIO_HELPER_H + +unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size); + +void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype); +void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype); + +int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, + __u8 request, __u8 requesttype, __u16 value, __u16 index, + void *data, __u16 size); + +unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip, + struct usb_host_interface *alts); + +struct usb_host_interface * +snd_usb_get_host_interface(struct snd_usb_audio *chip, int ifnum, int altsetting); + +/* + * retrieve usb_interface descriptor from the host interface + * (conditional for compatibility with the older API) + */ +#define get_iface_desc(iface) (&(iface)->desc) +#define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc) +#define get_ep_desc(ep) (&(ep)->desc) +#define get_cfg_desc(cfg) (&(cfg)->desc) + +#define snd_usb_get_speed(dev) ((dev)->speed) + +static inline int snd_usb_ctrl_intf(struct snd_usb_audio *chip) +{ + return get_iface_desc(chip->ctrl_intf)->bInterfaceNumber; +} + +/* in validate.c */ +bool snd_usb_validate_audio_desc(void *p, int protocol); +bool snd_usb_validate_midi_desc(void *p); + +#endif /* __USBAUDIO_HELPER_H */ diff --git a/sound/usb/hiface/Makefile b/sound/usb/hiface/Makefile new file mode 100644 index 000000000..8f3b24e7d --- /dev/null +++ b/sound/usb/hiface/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only +snd-usb-hiface-objs := chip.o pcm.o +obj-$(CONFIG_SND_USB_HIFACE) += snd-usb-hiface.o diff --git a/sound/usb/hiface/chip.c b/sound/usb/hiface/chip.c new file mode 100644 index 000000000..95385e908 --- /dev/null +++ b/sound/usb/hiface/chip.c @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for M2Tech hiFace compatible devices + * + * Copyright 2012-2013 (C) M2TECH S.r.l and Amarula Solutions B.V. + * + * Authors: Michael Trimarchi <michael@amarulasolutions.com> + * Antonio Ospite <ao2@amarulasolutions.com> + * + * The driver is based on the work done in TerraTec DMX 6Fire USB + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <sound/initval.h> + +#include "chip.h" +#include "pcm.h" + +MODULE_AUTHOR("Michael Trimarchi <michael@amarulasolutions.com>"); +MODULE_AUTHOR("Antonio Ospite <ao2@amarulasolutions.com>"); +MODULE_DESCRIPTION("M2Tech hiFace USB-SPDIF audio driver"); +MODULE_LICENSE("GPL v2"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ + +#define DRIVER_NAME "snd-usb-hiface" +#define CARD_NAME "hiFace" + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); + +static DEFINE_MUTEX(register_mutex); + +struct hiface_vendor_quirk { + const char *device_name; + u8 extra_freq; +}; + +static int hiface_chip_create(struct usb_interface *intf, + struct usb_device *device, int idx, + const struct hiface_vendor_quirk *quirk, + struct hiface_chip **rchip) +{ + struct snd_card *card = NULL; + struct hiface_chip *chip; + int ret; + int len; + + *rchip = NULL; + + /* if we are here, card can be registered in alsa. */ + ret = snd_card_new(&intf->dev, index[idx], id[idx], THIS_MODULE, + sizeof(*chip), &card); + if (ret < 0) { + dev_err(&device->dev, "cannot create alsa card.\n"); + return ret; + } + + strscpy(card->driver, DRIVER_NAME, sizeof(card->driver)); + + if (quirk && quirk->device_name) + strscpy(card->shortname, quirk->device_name, sizeof(card->shortname)); + else + strscpy(card->shortname, "M2Tech generic audio", sizeof(card->shortname)); + + strlcat(card->longname, card->shortname, sizeof(card->longname)); + len = strlcat(card->longname, " at ", sizeof(card->longname)); + if (len < sizeof(card->longname)) + usb_make_path(device, card->longname + len, + sizeof(card->longname) - len); + + chip = card->private_data; + chip->dev = device; + chip->card = card; + + *rchip = chip; + return 0; +} + +static int hiface_chip_probe(struct usb_interface *intf, + const struct usb_device_id *usb_id) +{ + const struct hiface_vendor_quirk *quirk = (struct hiface_vendor_quirk *)usb_id->driver_info; + int ret; + int i; + struct hiface_chip *chip; + struct usb_device *device = interface_to_usbdev(intf); + + ret = usb_set_interface(device, 0, 0); + if (ret != 0) { + dev_err(&device->dev, "can't set first interface for " CARD_NAME " device.\n"); + return -EIO; + } + + /* check whether the card is already registered */ + chip = NULL; + mutex_lock(®ister_mutex); + + for (i = 0; i < SNDRV_CARDS; i++) + if (enable[i]) + break; + + if (i >= SNDRV_CARDS) { + dev_err(&device->dev, "no available " CARD_NAME " audio device\n"); + ret = -ENODEV; + goto err; + } + + ret = hiface_chip_create(intf, device, i, quirk, &chip); + if (ret < 0) + goto err; + + ret = hiface_pcm_init(chip, quirk ? quirk->extra_freq : 0); + if (ret < 0) + goto err_chip_destroy; + + ret = snd_card_register(chip->card); + if (ret < 0) { + dev_err(&device->dev, "cannot register " CARD_NAME " card\n"); + goto err_chip_destroy; + } + + mutex_unlock(®ister_mutex); + + usb_set_intfdata(intf, chip); + return 0; + +err_chip_destroy: + snd_card_free(chip->card); +err: + mutex_unlock(®ister_mutex); + return ret; +} + +static void hiface_chip_disconnect(struct usb_interface *intf) +{ + struct hiface_chip *chip; + struct snd_card *card; + + chip = usb_get_intfdata(intf); + if (!chip) + return; + + card = chip->card; + + /* Make sure that the userspace cannot create new request */ + snd_card_disconnect(card); + + hiface_pcm_abort(chip); + snd_card_free_when_closed(card); +} + +static const struct usb_device_id device_table[] = { + { + USB_DEVICE(0x04b4, 0x0384), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Young", + .extra_freq = 1, + } + }, + { + USB_DEVICE(0x04b4, 0x930b), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "hiFace", + } + }, + { + USB_DEVICE(0x04b4, 0x931b), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "North Star", + } + }, + { + USB_DEVICE(0x04b4, 0x931c), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "W4S Young", + } + }, + { + USB_DEVICE(0x04b4, 0x931d), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Corrson", + } + }, + { + USB_DEVICE(0x04b4, 0x931e), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "AUDIA", + } + }, + { + USB_DEVICE(0x04b4, 0x931f), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "SL Audio", + } + }, + { + USB_DEVICE(0x04b4, 0x9320), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Empirical", + } + }, + { + USB_DEVICE(0x04b4, 0x9321), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Rockna", + } + }, + { + USB_DEVICE(0x249c, 0x9001), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Pathos", + } + }, + { + USB_DEVICE(0x249c, 0x9002), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Metronome", + } + }, + { + USB_DEVICE(0x249c, 0x9006), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "CAD", + } + }, + { + USB_DEVICE(0x249c, 0x9008), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Audio Esclusive", + } + }, + { + USB_DEVICE(0x249c, 0x931c), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Rotel", + } + }, + { + USB_DEVICE(0x249c, 0x932c), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Eeaudio", + } + }, + { + USB_DEVICE(0x245f, 0x931c), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "CHORD", + } + }, + { + USB_DEVICE(0x25c6, 0x9002), + .driver_info = (unsigned long)&(const struct hiface_vendor_quirk) { + .device_name = "Vitus", + } + }, + {} +}; + +MODULE_DEVICE_TABLE(usb, device_table); + +static struct usb_driver hiface_usb_driver = { + .name = DRIVER_NAME, + .probe = hiface_chip_probe, + .disconnect = hiface_chip_disconnect, + .id_table = device_table, +}; + +module_usb_driver(hiface_usb_driver); diff --git a/sound/usb/hiface/chip.h b/sound/usb/hiface/chip.h new file mode 100644 index 000000000..eb7a5cfb4 --- /dev/null +++ b/sound/usb/hiface/chip.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for M2Tech hiFace compatible devices + * + * Copyright 2012-2013 (C) M2TECH S.r.l and Amarula Solutions B.V. + * + * Authors: Michael Trimarchi <michael@amarulasolutions.com> + * Antonio Ospite <ao2@amarulasolutions.com> + * + * The driver is based on the work done in TerraTec DMX 6Fire USB + */ + +#ifndef HIFACE_CHIP_H +#define HIFACE_CHIP_H + +#include <linux/usb.h> +#include <sound/core.h> + +struct pcm_runtime; + +struct hiface_chip { + struct usb_device *dev; + struct snd_card *card; + struct pcm_runtime *pcm; +}; +#endif /* HIFACE_CHIP_H */ diff --git a/sound/usb/hiface/pcm.c b/sound/usb/hiface/pcm.c new file mode 100644 index 000000000..cf650fab5 --- /dev/null +++ b/sound/usb/hiface/pcm.c @@ -0,0 +1,612 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Linux driver for M2Tech hiFace compatible devices + * + * Copyright 2012-2013 (C) M2TECH S.r.l and Amarula Solutions B.V. + * + * Authors: Michael Trimarchi <michael@amarulasolutions.com> + * Antonio Ospite <ao2@amarulasolutions.com> + * + * The driver is based on the work done in TerraTec DMX 6Fire USB + */ + +#include <linux/slab.h> +#include <sound/pcm.h> + +#include "pcm.h" +#include "chip.h" + +#define OUT_EP 0x2 +#define PCM_N_URBS 8 +#define PCM_PACKET_SIZE 4096 +#define PCM_BUFFER_SIZE (2 * PCM_N_URBS * PCM_PACKET_SIZE) + +struct pcm_urb { + struct hiface_chip *chip; + + struct urb instance; + struct usb_anchor submitted; + u8 *buffer; +}; + +struct pcm_substream { + spinlock_t lock; + struct snd_pcm_substream *instance; + + bool active; + snd_pcm_uframes_t dma_off; /* current position in alsa dma_area */ + snd_pcm_uframes_t period_off; /* current position in current period */ +}; + +enum { /* pcm streaming states */ + STREAM_DISABLED, /* no pcm streaming */ + STREAM_STARTING, /* pcm streaming requested, waiting to become ready */ + STREAM_RUNNING, /* pcm streaming running */ + STREAM_STOPPING +}; + +struct pcm_runtime { + struct hiface_chip *chip; + struct snd_pcm *instance; + + struct pcm_substream playback; + bool panic; /* if set driver won't do anymore pcm on device */ + + struct pcm_urb out_urbs[PCM_N_URBS]; + + struct mutex stream_mutex; + u8 stream_state; /* one of STREAM_XXX */ + u8 extra_freq; + wait_queue_head_t stream_wait_queue; + bool stream_wait_cond; +}; + +static const unsigned int rates[] = { 44100, 48000, 88200, 96000, 176400, 192000, + 352800, 384000 }; +static const struct snd_pcm_hw_constraint_list constraints_extra_rates = { + .count = ARRAY_SIZE(rates), + .list = rates, + .mask = 0, +}; + +static const struct snd_pcm_hardware pcm_hw = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH, + + .formats = SNDRV_PCM_FMTBIT_S32_LE, + + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_176400 | + SNDRV_PCM_RATE_192000, + + .rate_min = 44100, + .rate_max = 192000, /* changes in hiface_pcm_open to support extra rates */ + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = PCM_BUFFER_SIZE, + .period_bytes_min = PCM_PACKET_SIZE, + .period_bytes_max = PCM_BUFFER_SIZE, + .periods_min = 2, + .periods_max = 1024 +}; + +/* message values used to change the sample rate */ +#define HIFACE_SET_RATE_REQUEST 0xb0 + +#define HIFACE_RATE_44100 0x43 +#define HIFACE_RATE_48000 0x4b +#define HIFACE_RATE_88200 0x42 +#define HIFACE_RATE_96000 0x4a +#define HIFACE_RATE_176400 0x40 +#define HIFACE_RATE_192000 0x48 +#define HIFACE_RATE_352800 0x58 +#define HIFACE_RATE_384000 0x68 + +static int hiface_pcm_set_rate(struct pcm_runtime *rt, unsigned int rate) +{ + struct usb_device *device = rt->chip->dev; + u16 rate_value; + int ret; + + /* We are already sure that the rate is supported here thanks to + * ALSA constraints + */ + switch (rate) { + case 44100: + rate_value = HIFACE_RATE_44100; + break; + case 48000: + rate_value = HIFACE_RATE_48000; + break; + case 88200: + rate_value = HIFACE_RATE_88200; + break; + case 96000: + rate_value = HIFACE_RATE_96000; + break; + case 176400: + rate_value = HIFACE_RATE_176400; + break; + case 192000: + rate_value = HIFACE_RATE_192000; + break; + case 352800: + rate_value = HIFACE_RATE_352800; + break; + case 384000: + rate_value = HIFACE_RATE_384000; + break; + default: + dev_err(&device->dev, "Unsupported rate %d\n", rate); + return -EINVAL; + } + + /* + * USBIO: Vendor 0xb0(wValue=0x0043, wIndex=0x0000) + * 43 b0 43 00 00 00 00 00 + * USBIO: Vendor 0xb0(wValue=0x004b, wIndex=0x0000) + * 43 b0 4b 00 00 00 00 00 + * This control message doesn't have any ack from the + * other side + */ + ret = usb_control_msg_send(device, 0, + HIFACE_SET_RATE_REQUEST, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + rate_value, 0, NULL, 0, 100, GFP_KERNEL); + if (ret) + dev_err(&device->dev, "Error setting samplerate %d.\n", rate); + + return ret; +} + +static struct pcm_substream *hiface_pcm_get_substream(struct snd_pcm_substream + *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct device *device = &rt->chip->dev->dev; + + if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + return &rt->playback; + + dev_err(device, "Error getting pcm substream slot.\n"); + return NULL; +} + +/* call with stream_mutex locked */ +static void hiface_pcm_stream_stop(struct pcm_runtime *rt) +{ + int i, time; + + if (rt->stream_state != STREAM_DISABLED) { + rt->stream_state = STREAM_STOPPING; + + for (i = 0; i < PCM_N_URBS; i++) { + time = usb_wait_anchor_empty_timeout( + &rt->out_urbs[i].submitted, 100); + if (!time) + usb_kill_anchored_urbs( + &rt->out_urbs[i].submitted); + usb_kill_urb(&rt->out_urbs[i].instance); + } + + rt->stream_state = STREAM_DISABLED; + } +} + +/* call with stream_mutex locked */ +static int hiface_pcm_stream_start(struct pcm_runtime *rt) +{ + int ret = 0; + int i; + + if (rt->stream_state == STREAM_DISABLED) { + + /* reset panic state when starting a new stream */ + rt->panic = false; + + /* submit our out urbs zero init */ + rt->stream_state = STREAM_STARTING; + for (i = 0; i < PCM_N_URBS; i++) { + memset(rt->out_urbs[i].buffer, 0, PCM_PACKET_SIZE); + usb_anchor_urb(&rt->out_urbs[i].instance, + &rt->out_urbs[i].submitted); + ret = usb_submit_urb(&rt->out_urbs[i].instance, + GFP_ATOMIC); + if (ret) { + hiface_pcm_stream_stop(rt); + return ret; + } + } + + /* wait for first out urb to return (sent in urb handler) */ + wait_event_timeout(rt->stream_wait_queue, rt->stream_wait_cond, + HZ); + if (rt->stream_wait_cond) { + struct device *device = &rt->chip->dev->dev; + dev_dbg(device, "%s: Stream is running wakeup event\n", + __func__); + rt->stream_state = STREAM_RUNNING; + } else { + hiface_pcm_stream_stop(rt); + return -EIO; + } + } + return ret; +} + +/* The hardware wants word-swapped 32-bit values */ +static void memcpy_swahw32(u8 *dest, u8 *src, unsigned int n) +{ + unsigned int i; + + for (i = 0; i < n / 4; i++) + ((u32 *)dest)[i] = swahw32(((u32 *)src)[i]); +} + +/* call with substream locked */ +/* returns true if a period elapsed */ +static bool hiface_pcm_playback(struct pcm_substream *sub, struct pcm_urb *urb) +{ + struct snd_pcm_runtime *alsa_rt = sub->instance->runtime; + struct device *device = &urb->chip->dev->dev; + u8 *source; + unsigned int pcm_buffer_size; + + WARN_ON(alsa_rt->format != SNDRV_PCM_FORMAT_S32_LE); + + pcm_buffer_size = snd_pcm_lib_buffer_bytes(sub->instance); + + if (sub->dma_off + PCM_PACKET_SIZE <= pcm_buffer_size) { + dev_dbg(device, "%s: (1) buffer_size %#x dma_offset %#x\n", __func__, + (unsigned int) pcm_buffer_size, + (unsigned int) sub->dma_off); + + source = alsa_rt->dma_area + sub->dma_off; + memcpy_swahw32(urb->buffer, source, PCM_PACKET_SIZE); + } else { + /* wrap around at end of ring buffer */ + unsigned int len; + + dev_dbg(device, "%s: (2) buffer_size %#x dma_offset %#x\n", __func__, + (unsigned int) pcm_buffer_size, + (unsigned int) sub->dma_off); + + len = pcm_buffer_size - sub->dma_off; + + source = alsa_rt->dma_area + sub->dma_off; + memcpy_swahw32(urb->buffer, source, len); + + source = alsa_rt->dma_area; + memcpy_swahw32(urb->buffer + len, source, + PCM_PACKET_SIZE - len); + } + sub->dma_off += PCM_PACKET_SIZE; + if (sub->dma_off >= pcm_buffer_size) + sub->dma_off -= pcm_buffer_size; + + sub->period_off += PCM_PACKET_SIZE; + if (sub->period_off >= alsa_rt->period_size) { + sub->period_off %= alsa_rt->period_size; + return true; + } + return false; +} + +static void hiface_pcm_out_urb_handler(struct urb *usb_urb) +{ + struct pcm_urb *out_urb = usb_urb->context; + struct pcm_runtime *rt = out_urb->chip->pcm; + struct pcm_substream *sub; + bool do_period_elapsed = false; + unsigned long flags; + int ret; + + if (rt->panic || rt->stream_state == STREAM_STOPPING) + return; + + if (unlikely(usb_urb->status == -ENOENT || /* unlinked */ + usb_urb->status == -ENODEV || /* device removed */ + usb_urb->status == -ECONNRESET || /* unlinked */ + usb_urb->status == -ESHUTDOWN)) { /* device disabled */ + goto out_fail; + } + + if (rt->stream_state == STREAM_STARTING) { + rt->stream_wait_cond = true; + wake_up(&rt->stream_wait_queue); + } + + /* now send our playback data (if a free out urb was found) */ + sub = &rt->playback; + spin_lock_irqsave(&sub->lock, flags); + if (sub->active) + do_period_elapsed = hiface_pcm_playback(sub, out_urb); + else + memset(out_urb->buffer, 0, PCM_PACKET_SIZE); + + spin_unlock_irqrestore(&sub->lock, flags); + + if (do_period_elapsed) + snd_pcm_period_elapsed(sub->instance); + + ret = usb_submit_urb(&out_urb->instance, GFP_ATOMIC); + if (ret < 0) + goto out_fail; + + return; + +out_fail: + rt->panic = true; +} + +static int hiface_pcm_open(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = NULL; + struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime; + int ret; + + if (rt->panic) + return -EPIPE; + + mutex_lock(&rt->stream_mutex); + alsa_rt->hw = pcm_hw; + + if (alsa_sub->stream == SNDRV_PCM_STREAM_PLAYBACK) + sub = &rt->playback; + + if (!sub) { + struct device *device = &rt->chip->dev->dev; + mutex_unlock(&rt->stream_mutex); + dev_err(device, "Invalid stream type\n"); + return -EINVAL; + } + + if (rt->extra_freq) { + alsa_rt->hw.rates |= SNDRV_PCM_RATE_KNOT; + alsa_rt->hw.rate_max = 384000; + + /* explicit constraints needed as we added SNDRV_PCM_RATE_KNOT */ + ret = snd_pcm_hw_constraint_list(alsa_sub->runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &constraints_extra_rates); + if (ret < 0) { + mutex_unlock(&rt->stream_mutex); + return ret; + } + } + + sub->instance = alsa_sub; + sub->active = false; + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int hiface_pcm_close(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = hiface_pcm_get_substream(alsa_sub); + unsigned long flags; + + if (rt->panic) + return 0; + + mutex_lock(&rt->stream_mutex); + if (sub) { + hiface_pcm_stream_stop(rt); + + /* deactivate substream */ + spin_lock_irqsave(&sub->lock, flags); + sub->instance = NULL; + sub->active = false; + spin_unlock_irqrestore(&sub->lock, flags); + + } + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int hiface_pcm_prepare(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + struct pcm_substream *sub = hiface_pcm_get_substream(alsa_sub); + struct snd_pcm_runtime *alsa_rt = alsa_sub->runtime; + int ret; + + if (rt->panic) + return -EPIPE; + if (!sub) + return -ENODEV; + + mutex_lock(&rt->stream_mutex); + + hiface_pcm_stream_stop(rt); + + sub->dma_off = 0; + sub->period_off = 0; + + if (rt->stream_state == STREAM_DISABLED) { + + ret = hiface_pcm_set_rate(rt, alsa_rt->rate); + if (ret) { + mutex_unlock(&rt->stream_mutex); + return ret; + } + ret = hiface_pcm_stream_start(rt); + if (ret) { + mutex_unlock(&rt->stream_mutex); + return ret; + } + } + mutex_unlock(&rt->stream_mutex); + return 0; +} + +static int hiface_pcm_trigger(struct snd_pcm_substream *alsa_sub, int cmd) +{ + struct pcm_substream *sub = hiface_pcm_get_substream(alsa_sub); + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + + if (rt->panic) + return -EPIPE; + if (!sub) + return -ENODEV; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + spin_lock_irq(&sub->lock); + sub->active = true; + spin_unlock_irq(&sub->lock); + return 0; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + spin_lock_irq(&sub->lock); + sub->active = false; + spin_unlock_irq(&sub->lock); + return 0; + + default: + return -EINVAL; + } +} + +static snd_pcm_uframes_t hiface_pcm_pointer(struct snd_pcm_substream *alsa_sub) +{ + struct pcm_substream *sub = hiface_pcm_get_substream(alsa_sub); + struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub); + unsigned long flags; + snd_pcm_uframes_t dma_offset; + + if (rt->panic || !sub) + return SNDRV_PCM_POS_XRUN; + + spin_lock_irqsave(&sub->lock, flags); + dma_offset = sub->dma_off; + spin_unlock_irqrestore(&sub->lock, flags); + return bytes_to_frames(alsa_sub->runtime, dma_offset); +} + +static const struct snd_pcm_ops pcm_ops = { + .open = hiface_pcm_open, + .close = hiface_pcm_close, + .prepare = hiface_pcm_prepare, + .trigger = hiface_pcm_trigger, + .pointer = hiface_pcm_pointer, +}; + +static int hiface_pcm_init_urb(struct pcm_urb *urb, + struct hiface_chip *chip, + unsigned int ep, + void (*handler)(struct urb *)) +{ + urb->chip = chip; + usb_init_urb(&urb->instance); + + urb->buffer = kzalloc(PCM_PACKET_SIZE, GFP_KERNEL); + if (!urb->buffer) + return -ENOMEM; + + usb_fill_bulk_urb(&urb->instance, chip->dev, + usb_sndbulkpipe(chip->dev, ep), (void *)urb->buffer, + PCM_PACKET_SIZE, handler, urb); + if (usb_urb_ep_type_check(&urb->instance)) + return -EINVAL; + init_usb_anchor(&urb->submitted); + + return 0; +} + +void hiface_pcm_abort(struct hiface_chip *chip) +{ + struct pcm_runtime *rt = chip->pcm; + + if (rt) { + rt->panic = true; + + mutex_lock(&rt->stream_mutex); + hiface_pcm_stream_stop(rt); + mutex_unlock(&rt->stream_mutex); + } +} + +static void hiface_pcm_destroy(struct hiface_chip *chip) +{ + struct pcm_runtime *rt = chip->pcm; + int i; + + for (i = 0; i < PCM_N_URBS; i++) + kfree(rt->out_urbs[i].buffer); + + kfree(chip->pcm); + chip->pcm = NULL; +} + +static void hiface_pcm_free(struct snd_pcm *pcm) +{ + struct pcm_runtime *rt = pcm->private_data; + + if (rt) + hiface_pcm_destroy(rt->chip); +} + +int hiface_pcm_init(struct hiface_chip *chip, u8 extra_freq) +{ + int i; + int ret; + struct snd_pcm *pcm; + struct pcm_runtime *rt; + + rt = kzalloc(sizeof(*rt), GFP_KERNEL); + if (!rt) + return -ENOMEM; + + rt->chip = chip; + rt->stream_state = STREAM_DISABLED; + if (extra_freq) + rt->extra_freq = 1; + + init_waitqueue_head(&rt->stream_wait_queue); + mutex_init(&rt->stream_mutex); + spin_lock_init(&rt->playback.lock); + + for (i = 0; i < PCM_N_URBS; i++) { + ret = hiface_pcm_init_urb(&rt->out_urbs[i], chip, OUT_EP, + hiface_pcm_out_urb_handler); + if (ret < 0) + goto error; + } + + ret = snd_pcm_new(chip->card, "USB-SPDIF Audio", 0, 1, 0, &pcm); + if (ret < 0) { + dev_err(&chip->dev->dev, "Cannot create pcm instance\n"); + goto error; + } + + pcm->private_data = rt; + pcm->private_free = hiface_pcm_free; + + strscpy(pcm->name, "USB-SPDIF Audio", sizeof(pcm->name)); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops); + snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); + + rt->instance = pcm; + + chip->pcm = rt; + return 0; + +error: + for (i = 0; i < PCM_N_URBS; i++) + kfree(rt->out_urbs[i].buffer); + kfree(rt); + return ret; +} diff --git a/sound/usb/hiface/pcm.h b/sound/usb/hiface/pcm.h new file mode 100644 index 000000000..afe74e978 --- /dev/null +++ b/sound/usb/hiface/pcm.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Linux driver for M2Tech hiFace compatible devices + * + * Copyright 2012-2013 (C) M2TECH S.r.l and Amarula Solutions B.V. + * + * Authors: Michael Trimarchi <michael@amarulasolutions.com> + * Antonio Ospite <ao2@amarulasolutions.com> + * + * The driver is based on the work done in TerraTec DMX 6Fire USB + */ + +#ifndef HIFACE_PCM_H +#define HIFACE_PCM_H + +struct hiface_chip; + +int hiface_pcm_init(struct hiface_chip *chip, u8 extra_freq); +void hiface_pcm_abort(struct hiface_chip *chip); +#endif /* HIFACE_PCM_H */ diff --git a/sound/usb/implicit.c b/sound/usb/implicit.c new file mode 100644 index 000000000..4727043fd --- /dev/null +++ b/sound/usb/implicit.c @@ -0,0 +1,493 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +// +// Special handling for implicit feedback mode +// + +#include <linux/init.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "usbaudio.h" +#include "card.h" +#include "helper.h" +#include "pcm.h" +#include "implicit.h" + +enum { + IMPLICIT_FB_NONE, + IMPLICIT_FB_GENERIC, + IMPLICIT_FB_FIXED, + IMPLICIT_FB_BOTH, /* generic playback + capture (for BOSS) */ +}; + +struct snd_usb_implicit_fb_match { + unsigned int id; + unsigned int iface_class; + unsigned int ep_num; + unsigned int iface; + int type; +}; + +#define IMPLICIT_FB_GENERIC_DEV(vend, prod) \ + { .id = USB_ID(vend, prod), .type = IMPLICIT_FB_GENERIC } +#define IMPLICIT_FB_FIXED_DEV(vend, prod, ep, ifnum) \ + { .id = USB_ID(vend, prod), .type = IMPLICIT_FB_FIXED, .ep_num = (ep),\ + .iface = (ifnum) } +#define IMPLICIT_FB_BOTH_DEV(vend, prod, ep, ifnum) \ + { .id = USB_ID(vend, prod), .type = IMPLICIT_FB_BOTH, .ep_num = (ep),\ + .iface = (ifnum) } +#define IMPLICIT_FB_SKIP_DEV(vend, prod) \ + { .id = USB_ID(vend, prod), .type = IMPLICIT_FB_NONE } + +/* Implicit feedback quirk table for playback */ +static const struct snd_usb_implicit_fb_match playback_implicit_fb_quirks[] = { + /* Fixed EP */ + /* FIXME: check the availability of generic matching */ + IMPLICIT_FB_FIXED_DEV(0x0763, 0x2030, 0x81, 3), /* M-Audio Fast Track C400 */ + IMPLICIT_FB_FIXED_DEV(0x0763, 0x2031, 0x81, 3), /* M-Audio Fast Track C600 */ + IMPLICIT_FB_FIXED_DEV(0x0763, 0x2080, 0x81, 2), /* M-Audio FastTrack Ultra */ + IMPLICIT_FB_FIXED_DEV(0x0763, 0x2081, 0x81, 2), /* M-Audio FastTrack Ultra */ + IMPLICIT_FB_FIXED_DEV(0x2466, 0x8010, 0x81, 2), /* Fractal Audio Axe-Fx III */ + IMPLICIT_FB_FIXED_DEV(0x31e9, 0x0001, 0x81, 2), /* Solid State Logic SSL2 */ + IMPLICIT_FB_FIXED_DEV(0x31e9, 0x0002, 0x81, 2), /* Solid State Logic SSL2+ */ + IMPLICIT_FB_FIXED_DEV(0x0499, 0x172f, 0x81, 2), /* Steinberg UR22C */ + IMPLICIT_FB_FIXED_DEV(0x0d9a, 0x00df, 0x81, 2), /* RTX6001 */ + IMPLICIT_FB_FIXED_DEV(0x22f0, 0x0006, 0x81, 3), /* Allen&Heath Qu-16 */ + IMPLICIT_FB_FIXED_DEV(0x1686, 0xf029, 0x82, 2), /* Zoom UAC-2 */ + IMPLICIT_FB_FIXED_DEV(0x2466, 0x8003, 0x86, 2), /* Fractal Audio Axe-Fx II */ + IMPLICIT_FB_FIXED_DEV(0x0499, 0x172a, 0x86, 2), /* Yamaha MODX */ + + /* Special matching */ + { .id = USB_ID(0x07fd, 0x0004), .iface_class = USB_CLASS_AUDIO, + .type = IMPLICIT_FB_NONE }, /* MicroBook IIc */ + /* ep = 0x84, ifnum = 0 */ + { .id = USB_ID(0x07fd, 0x0004), .iface_class = USB_CLASS_VENDOR_SPEC, + .type = IMPLICIT_FB_FIXED, + .ep_num = 0x84, .iface = 0 }, /* MOTU MicroBook II */ + + {} /* terminator */ +}; + +/* Implicit feedback quirk table for capture: only FIXED type */ +static const struct snd_usb_implicit_fb_match capture_implicit_fb_quirks[] = { + {} /* terminator */ +}; + +/* set up sync EP information on the audioformat */ +static int add_implicit_fb_sync_ep(struct snd_usb_audio *chip, + struct audioformat *fmt, + int ep, int ep_idx, int ifnum, + const struct usb_host_interface *alts) +{ + struct usb_interface *iface; + + if (!alts) { + iface = usb_ifnum_to_if(chip->dev, ifnum); + if (!iface || iface->num_altsetting < 2) + return 0; + alts = &iface->altsetting[1]; + } + + fmt->sync_ep = ep; + fmt->sync_iface = ifnum; + fmt->sync_altsetting = alts->desc.bAlternateSetting; + fmt->sync_ep_idx = ep_idx; + fmt->implicit_fb = 1; + usb_audio_dbg(chip, + "%d:%d: added %s implicit_fb sync_ep %x, iface %d:%d\n", + fmt->iface, fmt->altsetting, + (ep & USB_DIR_IN) ? "playback" : "capture", + fmt->sync_ep, fmt->sync_iface, fmt->sync_altsetting); + return 1; +} + +/* Check whether the given UAC2 iface:altset points to an implicit fb source */ +static int add_generic_uac2_implicit_fb(struct snd_usb_audio *chip, + struct audioformat *fmt, + unsigned int ifnum, + unsigned int altsetting) +{ + struct usb_host_interface *alts; + struct usb_endpoint_descriptor *epd; + + alts = snd_usb_get_host_interface(chip, ifnum, altsetting); + if (!alts) + return 0; + if (alts->desc.bInterfaceClass != USB_CLASS_AUDIO || + alts->desc.bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING || + alts->desc.bInterfaceProtocol != UAC_VERSION_2 || + alts->desc.bNumEndpoints < 1) + return 0; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_is_isoc_in(epd) || + (epd->bmAttributes & USB_ENDPOINT_USAGE_MASK) != + USB_ENDPOINT_USAGE_IMPLICIT_FB) + return 0; + return add_implicit_fb_sync_ep(chip, fmt, epd->bEndpointAddress, 0, + ifnum, alts); +} + +static bool roland_sanity_check_iface(struct usb_host_interface *alts) +{ + if (alts->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC || + (alts->desc.bInterfaceSubClass != 2 && + alts->desc.bInterfaceProtocol != 2) || + alts->desc.bNumEndpoints < 1) + return false; + return true; +} + +/* Like the UAC2 case above, but specific to Roland with vendor class and hack */ +static int add_roland_implicit_fb(struct snd_usb_audio *chip, + struct audioformat *fmt, + struct usb_host_interface *alts) +{ + struct usb_endpoint_descriptor *epd; + + if (!roland_sanity_check_iface(alts)) + return 0; + /* only when both streams are with ASYNC type */ + epd = get_endpoint(alts, 0); + if (!usb_endpoint_is_isoc_out(epd) || + (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC) + return 0; + + /* check capture EP */ + alts = snd_usb_get_host_interface(chip, + alts->desc.bInterfaceNumber + 1, + alts->desc.bAlternateSetting); + if (!alts || !roland_sanity_check_iface(alts)) + return 0; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_is_isoc_in(epd) || + (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC) + return 0; + chip->quirk_flags |= QUIRK_FLAG_PLAYBACK_FIRST; + return add_implicit_fb_sync_ep(chip, fmt, epd->bEndpointAddress, 0, + alts->desc.bInterfaceNumber, alts); +} + +/* capture quirk for Roland device; always full-duplex */ +static int add_roland_capture_quirk(struct snd_usb_audio *chip, + struct audioformat *fmt, + struct usb_host_interface *alts) +{ + struct usb_endpoint_descriptor *epd; + + if (!roland_sanity_check_iface(alts)) + return 0; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_is_isoc_in(epd) || + (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC) + return 0; + + alts = snd_usb_get_host_interface(chip, + alts->desc.bInterfaceNumber - 1, + alts->desc.bAlternateSetting); + if (!alts || !roland_sanity_check_iface(alts)) + return 0; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_is_isoc_out(epd)) + return 0; + return add_implicit_fb_sync_ep(chip, fmt, epd->bEndpointAddress, 0, + alts->desc.bInterfaceNumber, alts); +} + +/* Playback and capture EPs on Pioneer devices share the same iface/altset + * for the implicit feedback operation + */ +static bool is_pioneer_implicit_fb(struct snd_usb_audio *chip, + struct usb_host_interface *alts) + +{ + struct usb_endpoint_descriptor *epd; + + if (USB_ID_VENDOR(chip->usb_id) != 0x2b73 && + USB_ID_VENDOR(chip->usb_id) != 0x08e4) + return false; + if (alts->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC) + return false; + if (alts->desc.bNumEndpoints != 2) + return false; + + epd = get_endpoint(alts, 0); + if (!usb_endpoint_is_isoc_out(epd) || + (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC) + return false; + + epd = get_endpoint(alts, 1); + if (!usb_endpoint_is_isoc_in(epd) || + (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC || + ((epd->bmAttributes & USB_ENDPOINT_USAGE_MASK) != + USB_ENDPOINT_USAGE_DATA && + (epd->bmAttributes & USB_ENDPOINT_USAGE_MASK) != + USB_ENDPOINT_USAGE_IMPLICIT_FB)) + return false; + + return true; +} + +static int __add_generic_implicit_fb(struct snd_usb_audio *chip, + struct audioformat *fmt, + int iface, int altset) +{ + struct usb_host_interface *alts; + struct usb_endpoint_descriptor *epd; + + alts = snd_usb_get_host_interface(chip, iface, altset); + if (!alts) + return 0; + + if ((alts->desc.bInterfaceClass != USB_CLASS_VENDOR_SPEC && + alts->desc.bInterfaceClass != USB_CLASS_AUDIO) || + alts->desc.bNumEndpoints < 1) + return 0; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_is_isoc_in(epd) || + (epd->bmAttributes & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC) + return 0; + return add_implicit_fb_sync_ep(chip, fmt, epd->bEndpointAddress, 0, + iface, alts); +} + +/* More generic quirk: look for the sync EP next to the data EP */ +static int add_generic_implicit_fb(struct snd_usb_audio *chip, + struct audioformat *fmt, + struct usb_host_interface *alts) +{ + if ((fmt->ep_attr & USB_ENDPOINT_SYNCTYPE) != USB_ENDPOINT_SYNC_ASYNC) + return 0; + + if (__add_generic_implicit_fb(chip, fmt, + alts->desc.bInterfaceNumber + 1, + alts->desc.bAlternateSetting)) + return 1; + return __add_generic_implicit_fb(chip, fmt, + alts->desc.bInterfaceNumber - 1, + alts->desc.bAlternateSetting); +} + +static const struct snd_usb_implicit_fb_match * +find_implicit_fb_entry(struct snd_usb_audio *chip, + const struct snd_usb_implicit_fb_match *match, + const struct usb_host_interface *alts) +{ + for (; match->id; match++) + if (match->id == chip->usb_id && + (!match->iface_class || + (alts->desc.bInterfaceClass == match->iface_class))) + return match; + + return NULL; +} + +/* Setup an implicit feedback endpoint from a quirk. Returns 0 if no quirk + * applies. Returns 1 if a quirk was found. + */ +static int audioformat_implicit_fb_quirk(struct snd_usb_audio *chip, + struct audioformat *fmt, + struct usb_host_interface *alts) +{ + const struct snd_usb_implicit_fb_match *p; + unsigned int attr = fmt->ep_attr & USB_ENDPOINT_SYNCTYPE; + + p = find_implicit_fb_entry(chip, playback_implicit_fb_quirks, alts); + if (p) { + switch (p->type) { + case IMPLICIT_FB_GENERIC: + return add_generic_implicit_fb(chip, fmt, alts); + case IMPLICIT_FB_NONE: + return 0; /* No quirk */ + case IMPLICIT_FB_FIXED: + return add_implicit_fb_sync_ep(chip, fmt, p->ep_num, 0, + p->iface, NULL); + } + } + + /* Special handling for devices with capture quirks */ + p = find_implicit_fb_entry(chip, capture_implicit_fb_quirks, alts); + if (p) { + switch (p->type) { + case IMPLICIT_FB_FIXED: + return 0; /* no quirk */ + case IMPLICIT_FB_BOTH: + chip->quirk_flags |= QUIRK_FLAG_PLAYBACK_FIRST; + return add_generic_implicit_fb(chip, fmt, alts); + } + } + + /* Generic UAC2 implicit feedback */ + if (attr == USB_ENDPOINT_SYNC_ASYNC && + alts->desc.bInterfaceClass == USB_CLASS_AUDIO && + alts->desc.bInterfaceProtocol == UAC_VERSION_2 && + alts->desc.bNumEndpoints == 1) { + if (add_generic_uac2_implicit_fb(chip, fmt, + alts->desc.bInterfaceNumber + 1, + alts->desc.bAlternateSetting)) + return 1; + } + + /* Roland/BOSS implicit feedback with vendor spec class */ + if (USB_ID_VENDOR(chip->usb_id) == 0x0582) { + if (add_roland_implicit_fb(chip, fmt, alts) > 0) + return 1; + } + + /* Pioneer devices with vendor spec class */ + if (is_pioneer_implicit_fb(chip, alts)) { + chip->quirk_flags |= QUIRK_FLAG_PLAYBACK_FIRST; + return add_implicit_fb_sync_ep(chip, fmt, + get_endpoint(alts, 1)->bEndpointAddress, + 1, alts->desc.bInterfaceNumber, + alts); + } + + /* Try the generic implicit fb if available */ + if (chip->generic_implicit_fb || + (chip->quirk_flags & QUIRK_FLAG_GENERIC_IMPLICIT_FB)) + return add_generic_implicit_fb(chip, fmt, alts); + + /* No quirk */ + return 0; +} + +/* same for capture, but only handling FIXED entry */ +static int audioformat_capture_quirk(struct snd_usb_audio *chip, + struct audioformat *fmt, + struct usb_host_interface *alts) +{ + const struct snd_usb_implicit_fb_match *p; + + p = find_implicit_fb_entry(chip, capture_implicit_fb_quirks, alts); + if (p && (p->type == IMPLICIT_FB_FIXED || p->type == IMPLICIT_FB_BOTH)) + return add_implicit_fb_sync_ep(chip, fmt, p->ep_num, 0, + p->iface, NULL); + + /* Roland/BOSS need full-duplex streams */ + if (USB_ID_VENDOR(chip->usb_id) == 0x0582) { + if (add_roland_capture_quirk(chip, fmt, alts) > 0) + return 1; + } + + if (is_pioneer_implicit_fb(chip, alts)) + return 1; /* skip the quirk, also don't handle generic sync EP */ + return 0; +} + +/* + * Parse altset and set up implicit feedback endpoint on the audioformat + */ +int snd_usb_parse_implicit_fb_quirk(struct snd_usb_audio *chip, + struct audioformat *fmt, + struct usb_host_interface *alts) +{ + if (chip->quirk_flags & QUIRK_FLAG_SKIP_IMPLICIT_FB) + return 0; + if (fmt->endpoint & USB_DIR_IN) + return audioformat_capture_quirk(chip, fmt, alts); + else + return audioformat_implicit_fb_quirk(chip, fmt, alts); +} + +/* + * Return the score of matching two audioformats. + * Veto the audioformat if: + * - It has no channels for some reason. + * - Requested PCM format is not supported. + * - Requested sample rate is not supported. + */ +static int match_endpoint_audioformats(struct snd_usb_substream *subs, + const struct audioformat *fp, + int rate, int channels, + snd_pcm_format_t pcm_format) +{ + int i, score; + + if (fp->channels < 1) + return 0; + + if (!(fp->formats & pcm_format_to_bits(pcm_format))) + return 0; + + if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { + if (rate < fp->rate_min || rate > fp->rate_max) + return 0; + } else { + for (i = 0; i < fp->nr_rates; i++) { + if (fp->rate_table[i] == rate) + break; + } + if (i >= fp->nr_rates) + return 0; + } + + score = 1; + if (fp->channels == channels) + score++; + + return score; +} + +static struct snd_usb_substream * +find_matching_substream(struct snd_usb_audio *chip, int stream, int ep_num, + int fmt_type) +{ + struct snd_usb_stream *as; + struct snd_usb_substream *subs; + + list_for_each_entry(as, &chip->pcm_list, list) { + subs = &as->substream[stream]; + if (as->fmt_type == fmt_type && subs->ep_num == ep_num) + return subs; + } + + return NULL; +} + +/* + * Return the audioformat that is suitable for the implicit fb + */ +const struct audioformat * +snd_usb_find_implicit_fb_sync_format(struct snd_usb_audio *chip, + const struct audioformat *target, + const struct snd_pcm_hw_params *params, + int stream, + bool *fixed_rate) +{ + struct snd_usb_substream *subs; + const struct audioformat *fp, *sync_fmt = NULL; + int score, high_score; + + /* Use the original audioformat as fallback for the shared altset */ + if (target->iface == target->sync_iface && + target->altsetting == target->sync_altsetting) + sync_fmt = target; + + subs = find_matching_substream(chip, stream, target->sync_ep, + target->fmt_type); + if (!subs) + goto end; + + high_score = 0; + list_for_each_entry(fp, &subs->fmt_list, list) { + score = match_endpoint_audioformats(subs, fp, + params_rate(params), + params_channels(params), + params_format(params)); + if (score > high_score) { + sync_fmt = fp; + high_score = score; + } + } + + end: + if (fixed_rate) + *fixed_rate = snd_usb_pcm_has_fixed_rate(subs); + return sync_fmt; +} + diff --git a/sound/usb/implicit.h b/sound/usb/implicit.h new file mode 100644 index 000000000..7f1577b6c --- /dev/null +++ b/sound/usb/implicit.h @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0 +#ifndef __USBAUDIO_IMPLICIT_H +#define __USBAUDIO_IMPLICIT_H + +int snd_usb_parse_implicit_fb_quirk(struct snd_usb_audio *chip, + struct audioformat *fmt, + struct usb_host_interface *alts); +const struct audioformat * +snd_usb_find_implicit_fb_sync_format(struct snd_usb_audio *chip, + const struct audioformat *target, + const struct snd_pcm_hw_params *params, + int stream, bool *fixed_rate); + +#endif /* __USBAUDIO_IMPLICIT_H */ diff --git a/sound/usb/line6/Kconfig b/sound/usb/line6/Kconfig new file mode 100644 index 000000000..ab557e5ee --- /dev/null +++ b/sound/usb/line6/Kconfig @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: GPL-2.0-only +config SND_USB_LINE6 + tristate + select SND_RAWMIDI + select SND_PCM + select SND_HWDEP + +config SND_USB_POD + tristate "Line 6 POD USB support" + select SND_USB_LINE6 + help + This is a driver for PODxt and other similar devices, + supporting the following features: + * Reading/writing individual parameters + * Reading/writing complete channel, effects setup, and amp + setup data + * Channel switching + * Virtual MIDI interface + * Tuner access + * Playback/capture/mixer device for any ALSA-compatible PCM + audio application + * Signal routing (record clean/processed guitar signal, + re-amping) + +config SND_USB_PODHD + tristate "Line 6 POD X3/HD300/400/500 USB support" + select SND_USB_LINE6 + help + This is a driver for POD X3, HD300, 400 and 500 devices. + +config SND_USB_TONEPORT + tristate "TonePort GX, UX1 and UX2 USB support" + select SND_USB_LINE6 + select NEW_LEDS + select LEDS_CLASS + help + This is a driver for TonePort GX, UX1 and UX2 devices. + +config SND_USB_VARIAX + tristate "Variax Workbench USB support" + select SND_USB_LINE6 + help + This is a driver for Variax Workbench device. + diff --git a/sound/usb/line6/Makefile b/sound/usb/line6/Makefile new file mode 100644 index 000000000..4ba98eb32 --- /dev/null +++ b/sound/usb/line6/Makefile @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: GPL-2.0 +snd-usb-line6-y := \ + capture.o \ + driver.o \ + midi.o \ + midibuf.o \ + pcm.o \ + playback.o + +snd-usb-pod-y := pod.o +snd-usb-podhd-y := podhd.o +snd-usb-toneport-y := toneport.o +snd-usb-variax-y := variax.o + +obj-$(CONFIG_SND_USB_LINE6) += snd-usb-line6.o +obj-$(CONFIG_SND_USB_POD) += snd-usb-pod.o +obj-$(CONFIG_SND_USB_PODHD) += snd-usb-podhd.o +obj-$(CONFIG_SND_USB_TONEPORT) += snd-usb-toneport.o +obj-$(CONFIG_SND_USB_VARIAX) += snd-usb-variax.o diff --git a/sound/usb/line6/capture.c b/sound/usb/line6/capture.c new file mode 100644 index 000000000..970c9bdce --- /dev/null +++ b/sound/usb/line6/capture.c @@ -0,0 +1,294 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "capture.h" +#include "driver.h" +#include "pcm.h" + +/* + Find a free URB and submit it. + must be called in line6pcm->in.lock context +*/ +static int submit_audio_in_urb(struct snd_line6_pcm *line6pcm) +{ + int index; + int i, urb_size; + int ret; + struct urb *urb_in; + + index = find_first_zero_bit(&line6pcm->in.active_urbs, + line6pcm->line6->iso_buffers); + + if (index < 0 || index >= line6pcm->line6->iso_buffers) { + dev_err(line6pcm->line6->ifcdev, "no free URB found\n"); + return -EINVAL; + } + + urb_in = line6pcm->in.urbs[index]; + urb_size = 0; + + for (i = 0; i < LINE6_ISO_PACKETS; ++i) { + struct usb_iso_packet_descriptor *fin = + &urb_in->iso_frame_desc[i]; + fin->offset = urb_size; + fin->length = line6pcm->max_packet_size_in; + urb_size += line6pcm->max_packet_size_in; + } + + urb_in->transfer_buffer = + line6pcm->in.buffer + + index * LINE6_ISO_PACKETS * line6pcm->max_packet_size_in; + urb_in->transfer_buffer_length = urb_size; + urb_in->context = line6pcm; + + ret = usb_submit_urb(urb_in, GFP_ATOMIC); + + if (ret == 0) + set_bit(index, &line6pcm->in.active_urbs); + else + dev_err(line6pcm->line6->ifcdev, + "URB in #%d submission failed (%d)\n", index, ret); + + return 0; +} + +/* + Submit all currently available capture URBs. + must be called in line6pcm->in.lock context +*/ +int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm) +{ + int ret = 0, i; + + for (i = 0; i < line6pcm->line6->iso_buffers; ++i) { + ret = submit_audio_in_urb(line6pcm); + if (ret < 0) + break; + } + + return ret; +} + +/* + Copy data into ALSA capture buffer. +*/ +void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf, int fsize) +{ + struct snd_pcm_substream *substream = + get_substream(line6pcm, SNDRV_PCM_STREAM_CAPTURE); + struct snd_pcm_runtime *runtime = substream->runtime; + const int bytes_per_frame = + line6pcm->properties->bytes_per_channel * + line6pcm->properties->capture_hw.channels_max; + int frames = fsize / bytes_per_frame; + + if (runtime == NULL) + return; + + if (line6pcm->in.pos_done + frames > runtime->buffer_size) { + /* + The transferred area goes over buffer boundary, + copy two separate chunks. + */ + int len; + + len = runtime->buffer_size - line6pcm->in.pos_done; + + if (len > 0) { + memcpy(runtime->dma_area + + line6pcm->in.pos_done * bytes_per_frame, fbuf, + len * bytes_per_frame); + memcpy(runtime->dma_area, fbuf + len * bytes_per_frame, + (frames - len) * bytes_per_frame); + } else { + /* this is somewhat paranoid */ + dev_err(line6pcm->line6->ifcdev, + "driver bug: len = %d\n", len); + } + } else { + /* copy single chunk */ + memcpy(runtime->dma_area + + line6pcm->in.pos_done * bytes_per_frame, fbuf, fsize); + } + + line6pcm->in.pos_done += frames; + if (line6pcm->in.pos_done >= runtime->buffer_size) + line6pcm->in.pos_done -= runtime->buffer_size; +} + +void line6_capture_check_period(struct snd_line6_pcm *line6pcm, int length) +{ + struct snd_pcm_substream *substream = + get_substream(line6pcm, SNDRV_PCM_STREAM_CAPTURE); + + line6pcm->in.bytes += length; + if (line6pcm->in.bytes >= line6pcm->in.period) { + line6pcm->in.bytes %= line6pcm->in.period; + spin_unlock(&line6pcm->in.lock); + snd_pcm_period_elapsed(substream); + spin_lock(&line6pcm->in.lock); + } +} + +/* + * Callback for completed capture URB. + */ +static void audio_in_callback(struct urb *urb) +{ + int i, index, length = 0, shutdown = 0; + unsigned long flags; + + struct snd_line6_pcm *line6pcm = (struct snd_line6_pcm *)urb->context; + + line6pcm->in.last_frame = urb->start_frame; + + /* find index of URB */ + for (index = 0; index < line6pcm->line6->iso_buffers; ++index) + if (urb == line6pcm->in.urbs[index]) + break; + + spin_lock_irqsave(&line6pcm->in.lock, flags); + + for (i = 0; i < LINE6_ISO_PACKETS; ++i) { + char *fbuf; + int fsize; + struct usb_iso_packet_descriptor *fin = &urb->iso_frame_desc[i]; + + if (fin->status == -EXDEV) { + shutdown = 1; + break; + } + + fbuf = urb->transfer_buffer + fin->offset; + fsize = fin->actual_length; + + if (fsize > line6pcm->max_packet_size_in) { + dev_err(line6pcm->line6->ifcdev, + "driver and/or device bug: packet too large (%d > %d)\n", + fsize, line6pcm->max_packet_size_in); + } + + length += fsize; + + BUILD_BUG_ON_MSG(LINE6_ISO_PACKETS != 1, + "The following code assumes LINE6_ISO_PACKETS == 1"); + /* TODO: + * Also, if iso_buffers != 2, the prev frame is almost random at + * playback side. + * This needs to be redesigned. It should be "stable", but we may + * experience sync problems on such high-speed configs. + */ + + line6pcm->prev_fbuf = fbuf; + line6pcm->prev_fsize = fsize / + (line6pcm->properties->bytes_per_channel * + line6pcm->properties->capture_hw.channels_max); + + if (!test_bit(LINE6_STREAM_IMPULSE, &line6pcm->in.running) && + test_bit(LINE6_STREAM_PCM, &line6pcm->in.running) && + fsize > 0) + line6_capture_copy(line6pcm, fbuf, fsize); + } + + clear_bit(index, &line6pcm->in.active_urbs); + + if (test_and_clear_bit(index, &line6pcm->in.unlink_urbs)) + shutdown = 1; + + if (!shutdown) { + submit_audio_in_urb(line6pcm); + + if (!test_bit(LINE6_STREAM_IMPULSE, &line6pcm->in.running) && + test_bit(LINE6_STREAM_PCM, &line6pcm->in.running)) + line6_capture_check_period(line6pcm, length); + } + + spin_unlock_irqrestore(&line6pcm->in.lock, flags); +} + +/* open capture callback */ +static int snd_line6_capture_open(struct snd_pcm_substream *substream) +{ + int err; + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + err = snd_pcm_hw_constraint_ratdens(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &line6pcm->properties->rates); + if (err < 0) + return err; + + line6_pcm_acquire(line6pcm, LINE6_STREAM_CAPTURE_HELPER, false); + + runtime->hw = line6pcm->properties->capture_hw; + return 0; +} + +/* close capture callback */ +static int snd_line6_capture_close(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + line6_pcm_release(line6pcm, LINE6_STREAM_CAPTURE_HELPER); + return 0; +} + +/* capture operators */ +const struct snd_pcm_ops snd_line6_capture_ops = { + .open = snd_line6_capture_open, + .close = snd_line6_capture_close, + .hw_params = snd_line6_hw_params, + .hw_free = snd_line6_hw_free, + .prepare = snd_line6_prepare, + .trigger = snd_line6_trigger, + .pointer = snd_line6_pointer, +}; + +int line6_create_audio_in_urbs(struct snd_line6_pcm *line6pcm) +{ + struct usb_line6 *line6 = line6pcm->line6; + int i; + + line6pcm->in.urbs = kcalloc(line6->iso_buffers, sizeof(struct urb *), + GFP_KERNEL); + if (line6pcm->in.urbs == NULL) + return -ENOMEM; + + /* create audio URBs and fill in constant values: */ + for (i = 0; i < line6->iso_buffers; ++i) { + struct urb *urb; + + /* URB for audio in: */ + urb = line6pcm->in.urbs[i] = + usb_alloc_urb(LINE6_ISO_PACKETS, GFP_KERNEL); + + if (urb == NULL) + return -ENOMEM; + + urb->dev = line6->usbdev; + urb->pipe = + usb_rcvisocpipe(line6->usbdev, + line6->properties->ep_audio_r & + USB_ENDPOINT_NUMBER_MASK); + urb->transfer_flags = URB_ISO_ASAP; + urb->start_frame = -1; + urb->number_of_packets = LINE6_ISO_PACKETS; + urb->interval = LINE6_ISO_INTERVAL; + urb->error_count = 0; + urb->complete = audio_in_callback; + if (usb_urb_ep_type_check(urb)) + return -EINVAL; + } + + return 0; +} diff --git a/sound/usb/line6/capture.h b/sound/usb/line6/capture.h new file mode 100644 index 000000000..20e05a5ec --- /dev/null +++ b/sound/usb/line6/capture.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#ifndef CAPTURE_H +#define CAPTURE_H + +#include <sound/pcm.h> + +#include "driver.h" +#include "pcm.h" + +extern const struct snd_pcm_ops snd_line6_capture_ops; + +extern void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf, + int fsize); +extern void line6_capture_check_period(struct snd_line6_pcm *line6pcm, + int length); +extern int line6_create_audio_in_urbs(struct snd_line6_pcm *line6pcm); +extern int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm); + +#endif diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c new file mode 100644 index 000000000..b67617b68 --- /dev/null +++ b/sound/usb/line6/driver.c @@ -0,0 +1,900 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/export.h> +#include <linux/slab.h> +#include <linux/usb.h> + +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/hwdep.h> + +#include "capture.h" +#include "driver.h" +#include "midi.h" +#include "playback.h" + +#define DRIVER_AUTHOR "Markus Grabner <grabner@icg.tugraz.at>" +#define DRIVER_DESC "Line 6 USB Driver" + +/* + This is Line 6's MIDI manufacturer ID. +*/ +const unsigned char line6_midi_id[3] = { + 0x00, 0x01, 0x0c +}; +EXPORT_SYMBOL_GPL(line6_midi_id); + +/* + Code to request version of POD, Variax interface + (and maybe other devices). +*/ +static const char line6_request_version[] = { + 0xf0, 0x7e, 0x7f, 0x06, 0x01, 0xf7 +}; + +/* + Class for asynchronous messages. +*/ +struct message { + struct usb_line6 *line6; + const char *buffer; + int size; + int done; +}; + +/* + Forward declarations. +*/ +static void line6_data_received(struct urb *urb); +static int line6_send_raw_message_async_part(struct message *msg, + struct urb *urb); + +/* + Start to listen on endpoint. +*/ +static int line6_start_listen(struct usb_line6 *line6) +{ + int err; + + if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) { + usb_fill_int_urb(line6->urb_listen, line6->usbdev, + usb_rcvintpipe(line6->usbdev, line6->properties->ep_ctrl_r), + line6->buffer_listen, LINE6_BUFSIZE_LISTEN, + line6_data_received, line6, line6->interval); + } else { + usb_fill_bulk_urb(line6->urb_listen, line6->usbdev, + usb_rcvbulkpipe(line6->usbdev, line6->properties->ep_ctrl_r), + line6->buffer_listen, LINE6_BUFSIZE_LISTEN, + line6_data_received, line6); + } + + /* sanity checks of EP before actually submitting */ + if (usb_urb_ep_type_check(line6->urb_listen)) { + dev_err(line6->ifcdev, "invalid control EP\n"); + return -EINVAL; + } + + line6->urb_listen->actual_length = 0; + err = usb_submit_urb(line6->urb_listen, GFP_ATOMIC); + return err; +} + +/* + Stop listening on endpoint. +*/ +static void line6_stop_listen(struct usb_line6 *line6) +{ + usb_kill_urb(line6->urb_listen); +} + +/* + Send raw message in pieces of wMaxPacketSize bytes. +*/ +int line6_send_raw_message(struct usb_line6 *line6, const char *buffer, + int size) +{ + int i, done = 0; + const struct line6_properties *properties = line6->properties; + + for (i = 0; i < size; i += line6->max_packet_size) { + int partial; + const char *frag_buf = buffer + i; + int frag_size = min(line6->max_packet_size, size - i); + int retval; + + if (properties->capabilities & LINE6_CAP_CONTROL_MIDI) { + retval = usb_interrupt_msg(line6->usbdev, + usb_sndintpipe(line6->usbdev, properties->ep_ctrl_w), + (char *)frag_buf, frag_size, + &partial, LINE6_TIMEOUT); + } else { + retval = usb_bulk_msg(line6->usbdev, + usb_sndbulkpipe(line6->usbdev, properties->ep_ctrl_w), + (char *)frag_buf, frag_size, + &partial, LINE6_TIMEOUT); + } + + if (retval) { + dev_err(line6->ifcdev, + "usb_bulk_msg failed (%d)\n", retval); + break; + } + + done += frag_size; + } + + return done; +} +EXPORT_SYMBOL_GPL(line6_send_raw_message); + +/* + Notification of completion of asynchronous request transmission. +*/ +static void line6_async_request_sent(struct urb *urb) +{ + struct message *msg = (struct message *)urb->context; + + if (msg->done >= msg->size) { + usb_free_urb(urb); + kfree(msg); + } else + line6_send_raw_message_async_part(msg, urb); +} + +/* + Asynchronously send part of a raw message. +*/ +static int line6_send_raw_message_async_part(struct message *msg, + struct urb *urb) +{ + int retval; + struct usb_line6 *line6 = msg->line6; + int done = msg->done; + int bytes = min(msg->size - done, line6->max_packet_size); + + if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) { + usb_fill_int_urb(urb, line6->usbdev, + usb_sndintpipe(line6->usbdev, line6->properties->ep_ctrl_w), + (char *)msg->buffer + done, bytes, + line6_async_request_sent, msg, line6->interval); + } else { + usb_fill_bulk_urb(urb, line6->usbdev, + usb_sndbulkpipe(line6->usbdev, line6->properties->ep_ctrl_w), + (char *)msg->buffer + done, bytes, + line6_async_request_sent, msg); + } + + msg->done += bytes; + + /* sanity checks of EP before actually submitting */ + retval = usb_urb_ep_type_check(urb); + if (retval < 0) + goto error; + + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval < 0) + goto error; + + return 0; + + error: + dev_err(line6->ifcdev, "%s: usb_submit_urb failed (%d)\n", + __func__, retval); + usb_free_urb(urb); + kfree(msg); + return retval; +} + +/* + Asynchronously send raw message. +*/ +int line6_send_raw_message_async(struct usb_line6 *line6, const char *buffer, + int size) +{ + struct message *msg; + struct urb *urb; + + /* create message: */ + msg = kmalloc(sizeof(struct message), GFP_ATOMIC); + if (msg == NULL) + return -ENOMEM; + + /* create URB: */ + urb = usb_alloc_urb(0, GFP_ATOMIC); + + if (urb == NULL) { + kfree(msg); + return -ENOMEM; + } + + /* set message data: */ + msg->line6 = line6; + msg->buffer = buffer; + msg->size = size; + msg->done = 0; + + /* start sending: */ + return line6_send_raw_message_async_part(msg, urb); +} +EXPORT_SYMBOL_GPL(line6_send_raw_message_async); + +/* + Send asynchronous device version request. +*/ +int line6_version_request_async(struct usb_line6 *line6) +{ + char *buffer; + int retval; + + buffer = kmemdup(line6_request_version, + sizeof(line6_request_version), GFP_ATOMIC); + if (buffer == NULL) + return -ENOMEM; + + retval = line6_send_raw_message_async(line6, buffer, + sizeof(line6_request_version)); + kfree(buffer); + return retval; +} +EXPORT_SYMBOL_GPL(line6_version_request_async); + +/* + Send sysex message in pieces of wMaxPacketSize bytes. +*/ +int line6_send_sysex_message(struct usb_line6 *line6, const char *buffer, + int size) +{ + return line6_send_raw_message(line6, buffer, + size + SYSEX_EXTRA_SIZE) - + SYSEX_EXTRA_SIZE; +} +EXPORT_SYMBOL_GPL(line6_send_sysex_message); + +/* + Allocate buffer for sysex message and prepare header. + @param code sysex message code + @param size number of bytes between code and sysex end +*/ +char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, int code2, + int size) +{ + char *buffer = kmalloc(size + SYSEX_EXTRA_SIZE, GFP_ATOMIC); + + if (!buffer) + return NULL; + + buffer[0] = LINE6_SYSEX_BEGIN; + memcpy(buffer + 1, line6_midi_id, sizeof(line6_midi_id)); + buffer[sizeof(line6_midi_id) + 1] = code1; + buffer[sizeof(line6_midi_id) + 2] = code2; + buffer[sizeof(line6_midi_id) + 3 + size] = LINE6_SYSEX_END; + return buffer; +} +EXPORT_SYMBOL_GPL(line6_alloc_sysex_buffer); + +/* + Notification of data received from the Line 6 device. +*/ +static void line6_data_received(struct urb *urb) +{ + struct usb_line6 *line6 = (struct usb_line6 *)urb->context; + struct midi_buffer *mb = &line6->line6midi->midibuf_in; + int done; + + if (urb->status == -ESHUTDOWN) + return; + + if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) { + done = + line6_midibuf_write(mb, urb->transfer_buffer, urb->actual_length); + + if (done < urb->actual_length) { + line6_midibuf_ignore(mb, done); + dev_dbg(line6->ifcdev, "%d %d buffer overflow - message skipped\n", + done, urb->actual_length); + } + + for (;;) { + done = + line6_midibuf_read(mb, line6->buffer_message, + LINE6_MIDI_MESSAGE_MAXLEN, + LINE6_MIDIBUF_READ_RX); + + if (done <= 0) + break; + + line6->message_length = done; + line6_midi_receive(line6, line6->buffer_message, done); + + if (line6->process_message) + line6->process_message(line6); + } + } else { + line6->buffer_message = urb->transfer_buffer; + line6->message_length = urb->actual_length; + if (line6->process_message) + line6->process_message(line6); + line6->buffer_message = NULL; + } + + line6_start_listen(line6); +} + +#define LINE6_READ_WRITE_STATUS_DELAY 2 /* milliseconds */ +#define LINE6_READ_WRITE_MAX_RETRIES 50 + +/* + Read data from device. +*/ +int line6_read_data(struct usb_line6 *line6, unsigned address, void *data, + unsigned datalen) +{ + struct usb_device *usbdev = line6->usbdev; + int ret; + u8 len; + unsigned count; + + if (address > 0xffff || datalen > 0xff) + return -EINVAL; + + /* query the serial number: */ + ret = usb_control_msg_send(usbdev, 0, 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, + (datalen << 8) | 0x21, address, NULL, 0, + LINE6_TIMEOUT, GFP_KERNEL); + if (ret) { + dev_err(line6->ifcdev, "read request failed (error %d)\n", ret); + goto exit; + } + + /* Wait for data length. We'll get 0xff until length arrives. */ + for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) { + mdelay(LINE6_READ_WRITE_STATUS_DELAY); + + ret = usb_control_msg_recv(usbdev, 0, 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0x0012, 0x0000, &len, 1, + LINE6_TIMEOUT, GFP_KERNEL); + if (ret) { + dev_err(line6->ifcdev, + "receive length failed (error %d)\n", ret); + goto exit; + } + + if (len != 0xff) + break; + } + + ret = -EIO; + if (len == 0xff) { + dev_err(line6->ifcdev, "read failed after %d retries\n", + count); + goto exit; + } else if (len != datalen) { + /* should be equal or something went wrong */ + dev_err(line6->ifcdev, + "length mismatch (expected %d, got %d)\n", + (int)datalen, len); + goto exit; + } + + /* receive the result: */ + ret = usb_control_msg_recv(usbdev, 0, 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0x0013, 0x0000, data, datalen, LINE6_TIMEOUT, + GFP_KERNEL); + if (ret) + dev_err(line6->ifcdev, "read failed (error %d)\n", ret); + +exit: + return ret; +} +EXPORT_SYMBOL_GPL(line6_read_data); + +/* + Write data to device. +*/ +int line6_write_data(struct usb_line6 *line6, unsigned address, void *data, + unsigned datalen) +{ + struct usb_device *usbdev = line6->usbdev; + int ret; + unsigned char *status; + int count; + + if (address > 0xffff || datalen > 0xffff) + return -EINVAL; + + status = kmalloc(1, GFP_KERNEL); + if (!status) + return -ENOMEM; + + ret = usb_control_msg_send(usbdev, 0, 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, + 0x0022, address, data, datalen, LINE6_TIMEOUT, + GFP_KERNEL); + if (ret) { + dev_err(line6->ifcdev, + "write request failed (error %d)\n", ret); + goto exit; + } + + for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) { + mdelay(LINE6_READ_WRITE_STATUS_DELAY); + + ret = usb_control_msg_recv(usbdev, 0, 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0x0012, 0x0000, status, 1, LINE6_TIMEOUT, + GFP_KERNEL); + if (ret) { + dev_err(line6->ifcdev, + "receiving status failed (error %d)\n", ret); + goto exit; + } + + if (*status != 0xff) + break; + } + + if (*status == 0xff) { + dev_err(line6->ifcdev, "write failed after %d retries\n", + count); + ret = -EIO; + } else if (*status != 0) { + dev_err(line6->ifcdev, "write failed (error %d)\n", ret); + ret = -EIO; + } +exit: + kfree(status); + return ret; +} +EXPORT_SYMBOL_GPL(line6_write_data); + +/* + Read Line 6 device serial number. + (POD, TonePort, GuitarPort) +*/ +int line6_read_serial_number(struct usb_line6 *line6, u32 *serial_number) +{ + return line6_read_data(line6, 0x80d0, serial_number, + sizeof(*serial_number)); +} +EXPORT_SYMBOL_GPL(line6_read_serial_number); + +/* + Card destructor. +*/ +static void line6_destruct(struct snd_card *card) +{ + struct usb_line6 *line6 = card->private_data; + struct usb_device *usbdev = line6->usbdev; + + /* Free buffer memory first. We cannot depend on the existence of private + * data from the (podhd) module, it may be gone already during this call + */ + kfree(line6->buffer_message); + + kfree(line6->buffer_listen); + + /* then free URBs: */ + usb_free_urb(line6->urb_listen); + line6->urb_listen = NULL; + + /* decrement reference counters: */ + usb_put_dev(usbdev); +} + +static void line6_get_usb_properties(struct usb_line6 *line6) +{ + struct usb_device *usbdev = line6->usbdev; + const struct line6_properties *properties = line6->properties; + int pipe; + struct usb_host_endpoint *ep = NULL; + + if (properties->capabilities & LINE6_CAP_CONTROL) { + if (properties->capabilities & LINE6_CAP_CONTROL_MIDI) { + pipe = usb_rcvintpipe(line6->usbdev, + line6->properties->ep_ctrl_r); + } else { + pipe = usb_rcvbulkpipe(line6->usbdev, + line6->properties->ep_ctrl_r); + } + ep = usbdev->ep_in[usb_pipeendpoint(pipe)]; + } + + /* Control data transfer properties */ + if (ep) { + line6->interval = ep->desc.bInterval; + line6->max_packet_size = le16_to_cpu(ep->desc.wMaxPacketSize); + } else { + if (properties->capabilities & LINE6_CAP_CONTROL) { + dev_err(line6->ifcdev, + "endpoint not available, using fallback values"); + } + line6->interval = LINE6_FALLBACK_INTERVAL; + line6->max_packet_size = LINE6_FALLBACK_MAXPACKETSIZE; + } + + /* Isochronous transfer properties */ + if (usbdev->speed == USB_SPEED_LOW) { + line6->intervals_per_second = USB_LOW_INTERVALS_PER_SECOND; + line6->iso_buffers = USB_LOW_ISO_BUFFERS; + } else { + line6->intervals_per_second = USB_HIGH_INTERVALS_PER_SECOND; + line6->iso_buffers = USB_HIGH_ISO_BUFFERS; + } +} + +/* Enable buffering of incoming messages, flush the buffer */ +static int line6_hwdep_open(struct snd_hwdep *hw, struct file *file) +{ + struct usb_line6 *line6 = hw->private_data; + + /* NOTE: hwdep layer provides atomicity here */ + + line6->messages.active = 1; + line6->messages.nonblock = file->f_flags & O_NONBLOCK ? 1 : 0; + + return 0; +} + +/* Stop buffering */ +static int line6_hwdep_release(struct snd_hwdep *hw, struct file *file) +{ + struct usb_line6 *line6 = hw->private_data; + + line6->messages.active = 0; + + return 0; +} + +/* Read from circular buffer, return to user */ +static long +line6_hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, + loff_t *offset) +{ + struct usb_line6 *line6 = hwdep->private_data; + long rv = 0; + unsigned int out_count; + + if (mutex_lock_interruptible(&line6->messages.read_lock)) + return -ERESTARTSYS; + + while (kfifo_len(&line6->messages.fifo) == 0) { + mutex_unlock(&line6->messages.read_lock); + + if (line6->messages.nonblock) + return -EAGAIN; + + rv = wait_event_interruptible( + line6->messages.wait_queue, + kfifo_len(&line6->messages.fifo) != 0); + if (rv < 0) + return rv; + + if (mutex_lock_interruptible(&line6->messages.read_lock)) + return -ERESTARTSYS; + } + + if (kfifo_peek_len(&line6->messages.fifo) > count) { + /* Buffer too small; allow re-read of the current item... */ + rv = -EINVAL; + } else { + rv = kfifo_to_user(&line6->messages.fifo, buf, count, &out_count); + if (rv == 0) + rv = out_count; + } + + mutex_unlock(&line6->messages.read_lock); + return rv; +} + +/* Write directly (no buffering) to device by user*/ +static long +line6_hwdep_write(struct snd_hwdep *hwdep, const char __user *data, long count, + loff_t *offset) +{ + struct usb_line6 *line6 = hwdep->private_data; + int rv; + char *data_copy; + + if (count > line6->max_packet_size * LINE6_RAW_MESSAGES_MAXCOUNT) { + /* This is an arbitrary limit - still better than nothing... */ + return -EINVAL; + } + + data_copy = memdup_user(data, count); + if (IS_ERR(data_copy)) + return PTR_ERR(data_copy); + + rv = line6_send_raw_message(line6, data_copy, count); + + kfree(data_copy); + return rv; +} + +static __poll_t +line6_hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait) +{ + __poll_t rv; + struct usb_line6 *line6 = hwdep->private_data; + + poll_wait(file, &line6->messages.wait_queue, wait); + + mutex_lock(&line6->messages.read_lock); + rv = kfifo_len(&line6->messages.fifo) == 0 ? 0 : EPOLLIN | EPOLLRDNORM; + mutex_unlock(&line6->messages.read_lock); + + return rv; +} + +static const struct snd_hwdep_ops hwdep_ops = { + .open = line6_hwdep_open, + .release = line6_hwdep_release, + .read = line6_hwdep_read, + .write = line6_hwdep_write, + .poll = line6_hwdep_poll, +}; + +/* Insert into circular buffer */ +static void line6_hwdep_push_message(struct usb_line6 *line6) +{ + if (!line6->messages.active) + return; + + if (kfifo_avail(&line6->messages.fifo) >= line6->message_length) { + /* No race condition here, there's only one writer */ + kfifo_in(&line6->messages.fifo, + line6->buffer_message, line6->message_length); + } /* else TODO: signal overflow */ + + wake_up_interruptible(&line6->messages.wait_queue); +} + +static int line6_hwdep_init(struct usb_line6 *line6) +{ + int err; + struct snd_hwdep *hwdep; + + /* TODO: usb_driver_claim_interface(); */ + line6->process_message = line6_hwdep_push_message; + line6->messages.active = 0; + init_waitqueue_head(&line6->messages.wait_queue); + mutex_init(&line6->messages.read_lock); + INIT_KFIFO(line6->messages.fifo); + + err = snd_hwdep_new(line6->card, "config", 0, &hwdep); + if (err < 0) + goto end; + strcpy(hwdep->name, "config"); + hwdep->iface = SNDRV_HWDEP_IFACE_LINE6; + hwdep->ops = hwdep_ops; + hwdep->private_data = line6; + hwdep->exclusive = true; + +end: + return err; +} + +static int line6_init_cap_control(struct usb_line6 *line6) +{ + int ret; + + /* initialize USB buffers: */ + line6->buffer_listen = kmalloc(LINE6_BUFSIZE_LISTEN, GFP_KERNEL); + if (!line6->buffer_listen) + return -ENOMEM; + + line6->urb_listen = usb_alloc_urb(0, GFP_KERNEL); + if (!line6->urb_listen) + return -ENOMEM; + + if (line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI) { + line6->buffer_message = kmalloc(LINE6_MIDI_MESSAGE_MAXLEN, GFP_KERNEL); + if (!line6->buffer_message) + return -ENOMEM; + + ret = line6_init_midi(line6); + if (ret < 0) + return ret; + } else { + ret = line6_hwdep_init(line6); + if (ret < 0) + return ret; + } + + ret = line6_start_listen(line6); + if (ret < 0) { + dev_err(line6->ifcdev, "cannot start listening: %d\n", ret); + return ret; + } + + return 0; +} + +static void line6_startup_work(struct work_struct *work) +{ + struct usb_line6 *line6 = + container_of(work, struct usb_line6, startup_work.work); + + if (line6->startup) + line6->startup(line6); +} + +/* + Probe USB device. +*/ +int line6_probe(struct usb_interface *interface, + const struct usb_device_id *id, + const char *driver_name, + const struct line6_properties *properties, + int (*private_init)(struct usb_line6 *, const struct usb_device_id *id), + size_t data_size) +{ + struct usb_device *usbdev = interface_to_usbdev(interface); + struct snd_card *card; + struct usb_line6 *line6; + int interface_number; + int ret; + + if (WARN_ON(data_size < sizeof(*line6))) + return -EINVAL; + + /* we don't handle multiple configurations */ + if (usbdev->descriptor.bNumConfigurations != 1) + return -ENODEV; + + ret = snd_card_new(&interface->dev, + SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, + THIS_MODULE, data_size, &card); + if (ret < 0) + return ret; + + /* store basic data: */ + line6 = card->private_data; + line6->card = card; + line6->properties = properties; + line6->usbdev = usbdev; + line6->ifcdev = &interface->dev; + INIT_DELAYED_WORK(&line6->startup_work, line6_startup_work); + + strcpy(card->id, properties->id); + strcpy(card->driver, driver_name); + strcpy(card->shortname, properties->name); + sprintf(card->longname, "Line 6 %s at USB %s", properties->name, + dev_name(line6->ifcdev)); + card->private_free = line6_destruct; + + usb_set_intfdata(interface, line6); + + /* increment reference counters: */ + usb_get_dev(usbdev); + + /* initialize device info: */ + dev_info(&interface->dev, "Line 6 %s found\n", properties->name); + + /* query interface number */ + interface_number = interface->cur_altsetting->desc.bInterfaceNumber; + + /* TODO reserves the bus bandwidth even without actual transfer */ + ret = usb_set_interface(usbdev, interface_number, + properties->altsetting); + if (ret < 0) { + dev_err(&interface->dev, "set_interface failed\n"); + goto error; + } + + line6_get_usb_properties(line6); + + if (properties->capabilities & LINE6_CAP_CONTROL) { + ret = line6_init_cap_control(line6); + if (ret < 0) + goto error; + } + + /* initialize device data based on device: */ + ret = private_init(line6, id); + if (ret < 0) + goto error; + + /* creation of additional special files should go here */ + + dev_info(&interface->dev, "Line 6 %s now attached\n", + properties->name); + + return 0; + + error: + /* we can call disconnect callback here because no close-sync is + * needed yet at this point + */ + line6_disconnect(interface); + return ret; +} +EXPORT_SYMBOL_GPL(line6_probe); + +/* + Line 6 device disconnected. +*/ +void line6_disconnect(struct usb_interface *interface) +{ + struct usb_line6 *line6 = usb_get_intfdata(interface); + struct usb_device *usbdev = interface_to_usbdev(interface); + + if (!line6) + return; + + if (WARN_ON(usbdev != line6->usbdev)) + return; + + cancel_delayed_work_sync(&line6->startup_work); + + if (line6->urb_listen != NULL) + line6_stop_listen(line6); + + snd_card_disconnect(line6->card); + if (line6->line6pcm) + line6_pcm_disconnect(line6->line6pcm); + if (line6->disconnect) + line6->disconnect(line6); + + dev_info(&interface->dev, "Line 6 %s now disconnected\n", + line6->properties->name); + + /* make sure the device isn't destructed twice: */ + usb_set_intfdata(interface, NULL); + + snd_card_free_when_closed(line6->card); +} +EXPORT_SYMBOL_GPL(line6_disconnect); + +#ifdef CONFIG_PM + +/* + Suspend Line 6 device. +*/ +int line6_suspend(struct usb_interface *interface, pm_message_t message) +{ + struct usb_line6 *line6 = usb_get_intfdata(interface); + struct snd_line6_pcm *line6pcm = line6->line6pcm; + + snd_power_change_state(line6->card, SNDRV_CTL_POWER_D3hot); + + if (line6->properties->capabilities & LINE6_CAP_CONTROL) + line6_stop_listen(line6); + + if (line6pcm != NULL) + line6pcm->flags = 0; + + return 0; +} +EXPORT_SYMBOL_GPL(line6_suspend); + +/* + Resume Line 6 device. +*/ +int line6_resume(struct usb_interface *interface) +{ + struct usb_line6 *line6 = usb_get_intfdata(interface); + + if (line6->properties->capabilities & LINE6_CAP_CONTROL) + line6_start_listen(line6); + + snd_power_change_state(line6->card, SNDRV_CTL_POWER_D0); + return 0; +} +EXPORT_SYMBOL_GPL(line6_resume); + +#endif /* CONFIG_PM */ + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h new file mode 100644 index 000000000..dbb1d90d3 --- /dev/null +++ b/sound/usb/line6/driver.h @@ -0,0 +1,214 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#ifndef DRIVER_H +#define DRIVER_H + +#include <linux/usb.h> +#include <linux/mutex.h> +#include <linux/kfifo.h> +#include <sound/core.h> + +#include "midi.h" + +/* USB 1.1 speed configuration */ +#define USB_LOW_INTERVALS_PER_SECOND 1000 +#define USB_LOW_ISO_BUFFERS 2 + +/* USB 2.0+ speed configuration */ +#define USB_HIGH_INTERVALS_PER_SECOND 8000 +#define USB_HIGH_ISO_BUFFERS 16 + +/* Fallback USB interval and max packet size values */ +#define LINE6_FALLBACK_INTERVAL 10 +#define LINE6_FALLBACK_MAXPACKETSIZE 16 + +#define LINE6_TIMEOUT 1000 +#define LINE6_BUFSIZE_LISTEN 64 +#define LINE6_MIDI_MESSAGE_MAXLEN 256 + +#define LINE6_RAW_MESSAGES_MAXCOUNT_ORDER 7 +/* 4k packets are common, BUFSIZE * MAXCOUNT should be bigger... */ +#define LINE6_RAW_MESSAGES_MAXCOUNT (1 << LINE6_RAW_MESSAGES_MAXCOUNT_ORDER) + + +#if LINE6_BUFSIZE_LISTEN > 65535 +#error "Use dynamic fifo instead" +#endif + +/* + Line 6 MIDI control commands +*/ +#define LINE6_PARAM_CHANGE 0xb0 +#define LINE6_PROGRAM_CHANGE 0xc0 +#define LINE6_SYSEX_BEGIN 0xf0 +#define LINE6_SYSEX_END 0xf7 +#define LINE6_RESET 0xff + +/* + MIDI channel for messages initiated by the host + (and eventually echoed back by the device) +*/ +#define LINE6_CHANNEL_HOST 0x00 + +/* + MIDI channel for messages initiated by the device +*/ +#define LINE6_CHANNEL_DEVICE 0x02 + +#define LINE6_CHANNEL_UNKNOWN 5 /* don't know yet what this is good for */ + +#define LINE6_CHANNEL_MASK 0x0f + +extern const unsigned char line6_midi_id[3]; + +#define SYSEX_DATA_OFS (sizeof(line6_midi_id) + 3) +#define SYSEX_EXTRA_SIZE (sizeof(line6_midi_id) + 4) + +/* + Common properties of Line 6 devices. +*/ +struct line6_properties { + /* Card id string (maximum 16 characters). + * This can be used to address the device in ALSA programs as + * "default:CARD=<id>" + */ + const char *id; + + /* Card short name (maximum 32 characters) */ + const char *name; + + /* Bit vector defining this device's capabilities in line6usb driver */ + int capabilities; + + int altsetting; + + unsigned int ctrl_if; + unsigned int ep_ctrl_r; + unsigned int ep_ctrl_w; + unsigned int ep_audio_r; + unsigned int ep_audio_w; +}; + +/* Capability bits */ +enum { + /* device supports settings parameter via USB */ + LINE6_CAP_CONTROL = 1 << 0, + /* device supports PCM input/output via USB */ + LINE6_CAP_PCM = 1 << 1, + /* device supports hardware monitoring */ + LINE6_CAP_HWMON = 1 << 2, + /* device requires output data when input is read */ + LINE6_CAP_IN_NEEDS_OUT = 1 << 3, + /* device uses raw MIDI via USB (data endpoints) */ + LINE6_CAP_CONTROL_MIDI = 1 << 4, + /* device provides low-level information */ + LINE6_CAP_CONTROL_INFO = 1 << 5, + /* device provides hardware monitoring volume control */ + LINE6_CAP_HWMON_CTL = 1 << 6, +}; + +/* + Common data shared by all Line 6 devices. + Corresponds to a pair of USB endpoints. +*/ +struct usb_line6 { + /* USB device */ + struct usb_device *usbdev; + + /* Properties */ + const struct line6_properties *properties; + + /* Interval for data USB packets */ + int interval; + /* ...for isochronous transfers framing */ + int intervals_per_second; + + /* Number of isochronous URBs used for frame transfers */ + int iso_buffers; + + /* Maximum size of data USB packet */ + int max_packet_size; + + /* Device representing the USB interface */ + struct device *ifcdev; + + /* Line 6 sound card data structure. + * Each device has at least MIDI or PCM. + */ + struct snd_card *card; + + /* Line 6 PCM device data structure */ + struct snd_line6_pcm *line6pcm; + + /* Line 6 MIDI device data structure */ + struct snd_line6_midi *line6midi; + + /* URB for listening to POD data endpoint */ + struct urb *urb_listen; + + /* Buffer for incoming data from POD data endpoint */ + unsigned char *buffer_listen; + + /* Buffer for message to be processed, generated from MIDI layer */ + unsigned char *buffer_message; + + /* Length of message to be processed, generated from MIDI layer */ + int message_length; + + /* Circular buffer for non-MIDI control messages */ + struct { + struct mutex read_lock; + wait_queue_head_t wait_queue; + unsigned int active:1; + unsigned int nonblock:1; + STRUCT_KFIFO_REC_2(LINE6_BUFSIZE_LISTEN * LINE6_RAW_MESSAGES_MAXCOUNT) + fifo; + } messages; + + /* Work for delayed PCM startup */ + struct delayed_work startup_work; + + /* If MIDI is supported, buffer_message contains the pre-processed data; + * otherwise the data is only in urb_listen (buffer_incoming). + */ + void (*process_message)(struct usb_line6 *); + void (*disconnect)(struct usb_line6 *line6); + void (*startup)(struct usb_line6 *line6); +}; + +extern char *line6_alloc_sysex_buffer(struct usb_line6 *line6, int code1, + int code2, int size); +extern int line6_read_data(struct usb_line6 *line6, unsigned address, + void *data, unsigned datalen); +extern int line6_read_serial_number(struct usb_line6 *line6, + u32 *serial_number); +extern int line6_send_raw_message(struct usb_line6 *line6, + const char *buffer, int size); +extern int line6_send_raw_message_async(struct usb_line6 *line6, + const char *buffer, int size); +extern int line6_send_sysex_message(struct usb_line6 *line6, + const char *buffer, int size); +extern int line6_version_request_async(struct usb_line6 *line6); +extern int line6_write_data(struct usb_line6 *line6, unsigned address, + void *data, unsigned datalen); + +int line6_probe(struct usb_interface *interface, + const struct usb_device_id *id, + const char *driver_name, + const struct line6_properties *properties, + int (*private_init)(struct usb_line6 *, const struct usb_device_id *id), + size_t data_size); + +void line6_disconnect(struct usb_interface *interface); + +#ifdef CONFIG_PM +int line6_suspend(struct usb_interface *interface, pm_message_t message); +int line6_resume(struct usb_interface *interface); +#endif + +#endif diff --git a/sound/usb/line6/midi.c b/sound/usb/line6/midi.c new file mode 100644 index 000000000..0838632c7 --- /dev/null +++ b/sound/usb/line6/midi.c @@ -0,0 +1,295 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/export.h> +#include <sound/core.h> +#include <sound/rawmidi.h> + +#include "driver.h" +#include "midi.h" + +#define line6_rawmidi_substream_midi(substream) \ + ((struct snd_line6_midi *)((substream)->rmidi->private_data)) + +static int send_midi_async(struct usb_line6 *line6, unsigned char *data, + int length); + +/* + Pass data received via USB to MIDI. +*/ +void line6_midi_receive(struct usb_line6 *line6, unsigned char *data, + int length) +{ + if (line6->line6midi->substream_receive) + snd_rawmidi_receive(line6->line6midi->substream_receive, + data, length); +} + +/* + Read data from MIDI buffer and transmit them via USB. +*/ +static void line6_midi_transmit(struct snd_rawmidi_substream *substream) +{ + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + struct snd_line6_midi *line6midi = line6->line6midi; + struct midi_buffer *mb = &line6midi->midibuf_out; + unsigned char chunk[LINE6_FALLBACK_MAXPACKETSIZE]; + int req, done; + + for (;;) { + req = min3(line6_midibuf_bytes_free(mb), line6->max_packet_size, + LINE6_FALLBACK_MAXPACKETSIZE); + done = snd_rawmidi_transmit_peek(substream, chunk, req); + + if (done == 0) + break; + + line6_midibuf_write(mb, chunk, done); + snd_rawmidi_transmit_ack(substream, done); + } + + for (;;) { + done = line6_midibuf_read(mb, chunk, + LINE6_FALLBACK_MAXPACKETSIZE, + LINE6_MIDIBUF_READ_TX); + + if (done == 0) + break; + + send_midi_async(line6, chunk, done); + } +} + +/* + Notification of completion of MIDI transmission. +*/ +static void midi_sent(struct urb *urb) +{ + unsigned long flags; + int status; + int num; + struct usb_line6 *line6 = (struct usb_line6 *)urb->context; + + status = urb->status; + kfree(urb->transfer_buffer); + usb_free_urb(urb); + + if (status == -ESHUTDOWN) + return; + + spin_lock_irqsave(&line6->line6midi->lock, flags); + num = --line6->line6midi->num_active_send_urbs; + + if (num == 0) { + line6_midi_transmit(line6->line6midi->substream_transmit); + num = line6->line6midi->num_active_send_urbs; + } + + if (num == 0) + wake_up(&line6->line6midi->send_wait); + + spin_unlock_irqrestore(&line6->line6midi->lock, flags); +} + +/* + Send an asynchronous MIDI message. + Assumes that line6->line6midi->lock is held + (i.e., this function is serialized). +*/ +static int send_midi_async(struct usb_line6 *line6, unsigned char *data, + int length) +{ + struct urb *urb; + int retval; + unsigned char *transfer_buffer; + + urb = usb_alloc_urb(0, GFP_ATOMIC); + + if (urb == NULL) + return -ENOMEM; + + transfer_buffer = kmemdup(data, length, GFP_ATOMIC); + + if (transfer_buffer == NULL) { + usb_free_urb(urb); + return -ENOMEM; + } + + usb_fill_int_urb(urb, line6->usbdev, + usb_sndintpipe(line6->usbdev, + line6->properties->ep_ctrl_w), + transfer_buffer, length, midi_sent, line6, + line6->interval); + urb->actual_length = 0; + retval = usb_urb_ep_type_check(urb); + if (retval < 0) + goto error; + + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval < 0) + goto error; + + ++line6->line6midi->num_active_send_urbs; + return 0; + + error: + dev_err(line6->ifcdev, "usb_submit_urb failed\n"); + usb_free_urb(urb); + return retval; +} + +static int line6_midi_output_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int line6_midi_output_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void line6_midi_output_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + unsigned long flags; + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + + line6->line6midi->substream_transmit = substream; + spin_lock_irqsave(&line6->line6midi->lock, flags); + + if (line6->line6midi->num_active_send_urbs == 0) + line6_midi_transmit(substream); + + spin_unlock_irqrestore(&line6->line6midi->lock, flags); +} + +static void line6_midi_output_drain(struct snd_rawmidi_substream *substream) +{ + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + struct snd_line6_midi *midi = line6->line6midi; + + wait_event_interruptible(midi->send_wait, + midi->num_active_send_urbs == 0); +} + +static int line6_midi_input_open(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static int line6_midi_input_close(struct snd_rawmidi_substream *substream) +{ + return 0; +} + +static void line6_midi_input_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + struct usb_line6 *line6 = + line6_rawmidi_substream_midi(substream)->line6; + + if (up) + line6->line6midi->substream_receive = substream; + else + line6->line6midi->substream_receive = NULL; +} + +static const struct snd_rawmidi_ops line6_midi_output_ops = { + .open = line6_midi_output_open, + .close = line6_midi_output_close, + .trigger = line6_midi_output_trigger, + .drain = line6_midi_output_drain, +}; + +static const struct snd_rawmidi_ops line6_midi_input_ops = { + .open = line6_midi_input_open, + .close = line6_midi_input_close, + .trigger = line6_midi_input_trigger, +}; + +/* Create a MIDI device */ +static int snd_line6_new_midi(struct usb_line6 *line6, + struct snd_rawmidi **rmidi_ret) +{ + struct snd_rawmidi *rmidi; + int err; + + err = snd_rawmidi_new(line6->card, "Line 6 MIDI", 0, 1, 1, rmidi_ret); + if (err < 0) + return err; + + rmidi = *rmidi_ret; + strcpy(rmidi->id, line6->properties->id); + strcpy(rmidi->name, line6->properties->name); + + rmidi->info_flags = + SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &line6_midi_output_ops); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &line6_midi_input_ops); + return 0; +} + +/* MIDI device destructor */ +static void snd_line6_midi_free(struct snd_rawmidi *rmidi) +{ + struct snd_line6_midi *line6midi = rmidi->private_data; + + line6_midibuf_destroy(&line6midi->midibuf_in); + line6_midibuf_destroy(&line6midi->midibuf_out); + kfree(line6midi); +} + +/* + Initialize the Line 6 MIDI subsystem. +*/ +int line6_init_midi(struct usb_line6 *line6) +{ + int err; + struct snd_rawmidi *rmidi; + struct snd_line6_midi *line6midi; + + if (!(line6->properties->capabilities & LINE6_CAP_CONTROL_MIDI)) { + /* skip MIDI initialization and report success */ + return 0; + } + + err = snd_line6_new_midi(line6, &rmidi); + if (err < 0) + return err; + + line6midi = kzalloc(sizeof(struct snd_line6_midi), GFP_KERNEL); + if (!line6midi) + return -ENOMEM; + + rmidi->private_data = line6midi; + rmidi->private_free = snd_line6_midi_free; + + init_waitqueue_head(&line6midi->send_wait); + spin_lock_init(&line6midi->lock); + line6midi->line6 = line6; + + err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0); + if (err < 0) + return err; + + err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1); + if (err < 0) + return err; + + line6->line6midi = line6midi; + return 0; +} +EXPORT_SYMBOL_GPL(line6_init_midi); diff --git a/sound/usb/line6/midi.h b/sound/usb/line6/midi.h new file mode 100644 index 000000000..918754e79 --- /dev/null +++ b/sound/usb/line6/midi.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#ifndef MIDI_H +#define MIDI_H + +#include <sound/rawmidi.h> + +#include "midibuf.h" + +#define MIDI_BUFFER_SIZE 1024 + +struct snd_line6_midi { + /* Pointer back to the Line 6 driver data structure */ + struct usb_line6 *line6; + + /* MIDI substream for receiving (or NULL if not active) */ + struct snd_rawmidi_substream *substream_receive; + + /* MIDI substream for transmitting (or NULL if not active) */ + struct snd_rawmidi_substream *substream_transmit; + + /* Number of currently active MIDI send URBs */ + int num_active_send_urbs; + + /* Spin lock to protect MIDI buffer handling */ + spinlock_t lock; + + /* Wait queue for MIDI transmission */ + wait_queue_head_t send_wait; + + /* Buffer for incoming MIDI stream */ + struct midi_buffer midibuf_in; + + /* Buffer for outgoing MIDI stream */ + struct midi_buffer midibuf_out; +}; + +extern int line6_init_midi(struct usb_line6 *line6); +extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data, + int length); + +#endif diff --git a/sound/usb/line6/midibuf.c b/sound/usb/line6/midibuf.c new file mode 100644 index 000000000..e7f830f75 --- /dev/null +++ b/sound/usb/line6/midibuf.c @@ -0,0 +1,257 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/slab.h> + +#include "midibuf.h" + + +static int midibuf_message_length(unsigned char code) +{ + int message_length; + + if (code < 0x80) + message_length = -1; + else if (code < 0xf0) { + static const int length[] = { 3, 3, 3, 3, 2, 2, 3 }; + + message_length = length[(code >> 4) - 8]; + } else { + static const int length[] = { -1, 2, 2, 2, -1, -1, 1, 1, 1, -1, + 1, 1, 1, -1, 1, 1 + }; + message_length = length[code & 0x0f]; + } + + return message_length; +} + +static int midibuf_is_empty(struct midi_buffer *this) +{ + return (this->pos_read == this->pos_write) && !this->full; +} + +static int midibuf_is_full(struct midi_buffer *this) +{ + return this->full; +} + +void line6_midibuf_reset(struct midi_buffer *this) +{ + this->pos_read = this->pos_write = this->full = 0; + this->command_prev = -1; +} + +int line6_midibuf_init(struct midi_buffer *this, int size, int split) +{ + this->buf = kmalloc(size, GFP_KERNEL); + + if (this->buf == NULL) + return -ENOMEM; + + this->size = size; + this->split = split; + line6_midibuf_reset(this); + return 0; +} + +int line6_midibuf_bytes_free(struct midi_buffer *this) +{ + return + midibuf_is_full(this) ? + 0 : + (this->pos_read - this->pos_write + this->size - 1) % this->size + + 1; +} + +int line6_midibuf_bytes_used(struct midi_buffer *this) +{ + return + midibuf_is_empty(this) ? + 0 : + (this->pos_write - this->pos_read + this->size - 1) % this->size + + 1; +} + +int line6_midibuf_write(struct midi_buffer *this, unsigned char *data, + int length) +{ + int bytes_free; + int length1, length2; + int skip_active_sense = 0; + + if (midibuf_is_full(this) || (length <= 0)) + return 0; + + /* skip trailing active sense */ + if (data[length - 1] == 0xfe) { + --length; + skip_active_sense = 1; + } + + bytes_free = line6_midibuf_bytes_free(this); + + if (length > bytes_free) + length = bytes_free; + + if (length > 0) { + length1 = this->size - this->pos_write; + + if (length < length1) { + /* no buffer wraparound */ + memcpy(this->buf + this->pos_write, data, length); + this->pos_write += length; + } else { + /* buffer wraparound */ + length2 = length - length1; + memcpy(this->buf + this->pos_write, data, length1); + memcpy(this->buf, data + length1, length2); + this->pos_write = length2; + } + + if (this->pos_write == this->pos_read) + this->full = 1; + } + + return length + skip_active_sense; +} + +int line6_midibuf_read(struct midi_buffer *this, unsigned char *data, + int length, int read_type) +{ + int bytes_used; + int length1, length2; + int command; + int midi_length; + int repeat = 0; + int i; + + /* we need to be able to store at least a 3 byte MIDI message */ + if (length < 3) + return -EINVAL; + + if (midibuf_is_empty(this)) + return 0; + + bytes_used = line6_midibuf_bytes_used(this); + + if (length > bytes_used) + length = bytes_used; + + length1 = this->size - this->pos_read; + + command = this->buf[this->pos_read]; + /* + PODxt always has status byte lower nibble set to 0010, + when it means to send 0000, so we correct if here so + that control/program changes come on channel 1 and + sysex message status byte is correct + */ + if (read_type == LINE6_MIDIBUF_READ_RX) { + if (command == 0xb2 || command == 0xc2 || command == 0xf2) { + unsigned char fixed = command & 0xf0; + this->buf[this->pos_read] = fixed; + command = fixed; + } + } + + /* check MIDI command length */ + if (command & 0x80) { + midi_length = midibuf_message_length(command); + this->command_prev = command; + } else { + if (this->command_prev > 0) { + int midi_length_prev = + midibuf_message_length(this->command_prev); + + if (midi_length_prev > 1) { + midi_length = midi_length_prev - 1; + repeat = 1; + } else + midi_length = -1; + } else + midi_length = -1; + } + + if (midi_length < 0) { + /* search for end of message */ + if (length < length1) { + /* no buffer wraparound */ + for (i = 1; i < length; ++i) + if (this->buf[this->pos_read + i] & 0x80) + break; + + midi_length = i; + } else { + /* buffer wraparound */ + length2 = length - length1; + + for (i = 1; i < length1; ++i) + if (this->buf[this->pos_read + i] & 0x80) + break; + + if (i < length1) + midi_length = i; + else { + for (i = 0; i < length2; ++i) + if (this->buf[i] & 0x80) + break; + + midi_length = length1 + i; + } + } + + if (midi_length == length) + midi_length = -1; /* end of message not found */ + } + + if (midi_length < 0) { + if (!this->split) + return 0; /* command is not yet complete */ + } else { + if (length < midi_length) + return 0; /* command is not yet complete */ + + length = midi_length; + } + + if (length < length1) { + /* no buffer wraparound */ + memcpy(data + repeat, this->buf + this->pos_read, length); + this->pos_read += length; + } else { + /* buffer wraparound */ + length2 = length - length1; + memcpy(data + repeat, this->buf + this->pos_read, length1); + memcpy(data + repeat + length1, this->buf, length2); + this->pos_read = length2; + } + + if (repeat) + data[0] = this->command_prev; + + this->full = 0; + return length + repeat; +} + +int line6_midibuf_ignore(struct midi_buffer *this, int length) +{ + int bytes_used = line6_midibuf_bytes_used(this); + + if (length > bytes_used) + length = bytes_used; + + this->pos_read = (this->pos_read + length) % this->size; + this->full = 0; + return length; +} + +void line6_midibuf_destroy(struct midi_buffer *this) +{ + kfree(this->buf); + this->buf = NULL; +} diff --git a/sound/usb/line6/midibuf.h b/sound/usb/line6/midibuf.h new file mode 100644 index 000000000..542e8d836 --- /dev/null +++ b/sound/usb/line6/midibuf.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#ifndef MIDIBUF_H +#define MIDIBUF_H + +#define LINE6_MIDIBUF_READ_TX 0 +#define LINE6_MIDIBUF_READ_RX 1 + +struct midi_buffer { + unsigned char *buf; + int size; + int split; + int pos_read, pos_write; + int full; + int command_prev; +}; + +extern int line6_midibuf_bytes_used(struct midi_buffer *mb); +extern int line6_midibuf_bytes_free(struct midi_buffer *mb); +extern void line6_midibuf_destroy(struct midi_buffer *mb); +extern int line6_midibuf_ignore(struct midi_buffer *mb, int length); +extern int line6_midibuf_init(struct midi_buffer *mb, int size, int split); +extern int line6_midibuf_read(struct midi_buffer *mb, unsigned char *data, + int length, int read_type); +extern void line6_midibuf_reset(struct midi_buffer *mb); +extern int line6_midibuf_write(struct midi_buffer *mb, unsigned char *data, + int length); + +#endif diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c new file mode 100644 index 000000000..6a4af725a --- /dev/null +++ b/sound/usb/line6/pcm.c @@ -0,0 +1,607 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/slab.h> +#include <linux/export.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "capture.h" +#include "driver.h" +#include "playback.h" + +/* impulse response volume controls */ +static int snd_line6_impulse_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 255; + return 0; +} + +static int snd_line6_impulse_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = line6pcm->impulse_volume; + return 0; +} + +static int snd_line6_impulse_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + int value = ucontrol->value.integer.value[0]; + int err; + + if (line6pcm->impulse_volume == value) + return 0; + + line6pcm->impulse_volume = value; + if (value > 0) { + err = line6_pcm_acquire(line6pcm, LINE6_STREAM_IMPULSE, true); + if (err < 0) { + line6pcm->impulse_volume = 0; + return err; + } + } else { + line6_pcm_release(line6pcm, LINE6_STREAM_IMPULSE); + } + return 1; +} + +/* impulse response period controls */ +static int snd_line6_impulse_period_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 2000; + return 0; +} + +static int snd_line6_impulse_period_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = line6pcm->impulse_period; + return 0; +} + +static int snd_line6_impulse_period_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + int value = ucontrol->value.integer.value[0]; + + if (line6pcm->impulse_period == value) + return 0; + + line6pcm->impulse_period = value; + return 1; +} + +/* + Unlink all currently active URBs. +*/ +static void line6_unlink_audio_urbs(struct snd_line6_pcm *line6pcm, + struct line6_pcm_stream *pcms) +{ + int i; + + for (i = 0; i < line6pcm->line6->iso_buffers; i++) { + if (test_bit(i, &pcms->active_urbs)) { + if (!test_and_set_bit(i, &pcms->unlink_urbs)) + usb_unlink_urb(pcms->urbs[i]); + } + } +} + +/* + Wait until unlinking of all currently active URBs has been finished. +*/ +static void line6_wait_clear_audio_urbs(struct snd_line6_pcm *line6pcm, + struct line6_pcm_stream *pcms) +{ + int timeout = HZ; + int i; + int alive; + + do { + alive = 0; + for (i = 0; i < line6pcm->line6->iso_buffers; i++) { + if (test_bit(i, &pcms->active_urbs)) + alive++; + } + if (!alive) + break; + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(1); + } while (--timeout > 0); + if (alive) + dev_err(line6pcm->line6->ifcdev, + "timeout: still %d active urbs..\n", alive); +} + +static inline struct line6_pcm_stream * +get_stream(struct snd_line6_pcm *line6pcm, int direction) +{ + return (direction == SNDRV_PCM_STREAM_PLAYBACK) ? + &line6pcm->out : &line6pcm->in; +} + +/* allocate a buffer if not opened yet; + * call this in line6pcm.state_mutex + */ +static int line6_buffer_acquire(struct snd_line6_pcm *line6pcm, + struct line6_pcm_stream *pstr, int direction, int type) +{ + const int pkt_size = + (direction == SNDRV_PCM_STREAM_PLAYBACK) ? + line6pcm->max_packet_size_out : + line6pcm->max_packet_size_in; + + /* Invoked multiple times in a row so allocate once only */ + if (!test_and_set_bit(type, &pstr->opened) && !pstr->buffer) { + pstr->buffer = + kmalloc(array3_size(line6pcm->line6->iso_buffers, + LINE6_ISO_PACKETS, pkt_size), + GFP_KERNEL); + if (!pstr->buffer) + return -ENOMEM; + } + return 0; +} + +/* free a buffer if all streams are closed; + * call this in line6pcm.state_mutex + */ +static void line6_buffer_release(struct snd_line6_pcm *line6pcm, + struct line6_pcm_stream *pstr, int type) +{ + clear_bit(type, &pstr->opened); + if (!pstr->opened) { + line6_wait_clear_audio_urbs(line6pcm, pstr); + kfree(pstr->buffer); + pstr->buffer = NULL; + } +} + +/* start a PCM stream */ +static int line6_stream_start(struct snd_line6_pcm *line6pcm, int direction, + int type) +{ + unsigned long flags; + struct line6_pcm_stream *pstr = get_stream(line6pcm, direction); + int ret = 0; + + spin_lock_irqsave(&pstr->lock, flags); + if (!test_and_set_bit(type, &pstr->running) && + !(pstr->active_urbs || pstr->unlink_urbs)) { + pstr->count = 0; + /* Submit all currently available URBs */ + if (direction == SNDRV_PCM_STREAM_PLAYBACK) + ret = line6_submit_audio_out_all_urbs(line6pcm); + else + ret = line6_submit_audio_in_all_urbs(line6pcm); + } + + if (ret < 0) + clear_bit(type, &pstr->running); + spin_unlock_irqrestore(&pstr->lock, flags); + return ret; +} + +/* stop a PCM stream; this doesn't sync with the unlinked URBs */ +static void line6_stream_stop(struct snd_line6_pcm *line6pcm, int direction, + int type) +{ + unsigned long flags; + struct line6_pcm_stream *pstr = get_stream(line6pcm, direction); + + spin_lock_irqsave(&pstr->lock, flags); + clear_bit(type, &pstr->running); + if (!pstr->running) { + spin_unlock_irqrestore(&pstr->lock, flags); + line6_unlink_audio_urbs(line6pcm, pstr); + spin_lock_irqsave(&pstr->lock, flags); + if (direction == SNDRV_PCM_STREAM_CAPTURE) { + line6pcm->prev_fbuf = NULL; + line6pcm->prev_fsize = 0; + } + } + spin_unlock_irqrestore(&pstr->lock, flags); +} + +/* common PCM trigger callback */ +int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + struct snd_pcm_substream *s; + int err; + + clear_bit(LINE6_FLAG_PREPARED, &line6pcm->flags); + + snd_pcm_group_for_each_entry(s, substream) { + if (s->pcm->card != substream->pcm->card) + continue; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + if (s->stream == SNDRV_PCM_STREAM_CAPTURE && + (line6pcm->line6->properties->capabilities & + LINE6_CAP_IN_NEEDS_OUT)) { + err = line6_stream_start(line6pcm, SNDRV_PCM_STREAM_PLAYBACK, + LINE6_STREAM_CAPTURE_HELPER); + if (err < 0) + return err; + } + err = line6_stream_start(line6pcm, s->stream, + LINE6_STREAM_PCM); + if (err < 0) + return err; + break; + + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + if (s->stream == SNDRV_PCM_STREAM_CAPTURE && + (line6pcm->line6->properties->capabilities & + LINE6_CAP_IN_NEEDS_OUT)) { + line6_stream_stop(line6pcm, SNDRV_PCM_STREAM_PLAYBACK, + LINE6_STREAM_CAPTURE_HELPER); + } + line6_stream_stop(line6pcm, s->stream, + LINE6_STREAM_PCM); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (s->stream != SNDRV_PCM_STREAM_PLAYBACK) + return -EINVAL; + set_bit(LINE6_FLAG_PAUSE_PLAYBACK, &line6pcm->flags); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (s->stream != SNDRV_PCM_STREAM_PLAYBACK) + return -EINVAL; + clear_bit(LINE6_FLAG_PAUSE_PLAYBACK, &line6pcm->flags); + break; + + default: + return -EINVAL; + } + } + + return 0; +} + +/* common PCM pointer callback */ +snd_pcm_uframes_t snd_line6_pointer(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream); + + return pstr->pos_done; +} + +/* Acquire and optionally start duplex streams: + * type is either LINE6_STREAM_IMPULSE or LINE6_STREAM_MONITOR + */ +int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int type, bool start) +{ + struct line6_pcm_stream *pstr; + int ret = 0, dir; + + /* TODO: We should assert SNDRV_PCM_STREAM_PLAYBACK/CAPTURE == 0/1 */ + mutex_lock(&line6pcm->state_mutex); + for (dir = 0; dir < 2; dir++) { + pstr = get_stream(line6pcm, dir); + ret = line6_buffer_acquire(line6pcm, pstr, dir, type); + if (ret < 0) + goto error; + if (!pstr->running) + line6_wait_clear_audio_urbs(line6pcm, pstr); + } + if (start) { + for (dir = 0; dir < 2; dir++) { + ret = line6_stream_start(line6pcm, dir, type); + if (ret < 0) + goto error; + } + } + error: + mutex_unlock(&line6pcm->state_mutex); + if (ret < 0) + line6_pcm_release(line6pcm, type); + return ret; +} +EXPORT_SYMBOL_GPL(line6_pcm_acquire); + +/* Stop and release duplex streams */ +void line6_pcm_release(struct snd_line6_pcm *line6pcm, int type) +{ + struct line6_pcm_stream *pstr; + int dir; + + mutex_lock(&line6pcm->state_mutex); + for (dir = 0; dir < 2; dir++) + line6_stream_stop(line6pcm, dir, type); + for (dir = 0; dir < 2; dir++) { + pstr = get_stream(line6pcm, dir); + line6_buffer_release(line6pcm, pstr, type); + } + mutex_unlock(&line6pcm->state_mutex); +} +EXPORT_SYMBOL_GPL(line6_pcm_release); + +/* common PCM hw_params callback */ +int snd_line6_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + int ret; + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream); + + mutex_lock(&line6pcm->state_mutex); + ret = line6_buffer_acquire(line6pcm, pstr, substream->stream, + LINE6_STREAM_PCM); + if (ret < 0) + goto error; + + pstr->period = params_period_bytes(hw_params); + error: + mutex_unlock(&line6pcm->state_mutex); + return ret; +} + +/* common PCM hw_free callback */ +int snd_line6_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream); + + mutex_lock(&line6pcm->state_mutex); + line6_buffer_release(line6pcm, pstr, LINE6_STREAM_PCM); + mutex_unlock(&line6pcm->state_mutex); + return 0; +} + + +/* control info callback */ +static int snd_line6_control_playback_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 256; + return 0; +} + +/* control get callback */ +static int snd_line6_control_playback_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int i; + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + for (i = 0; i < 2; i++) + ucontrol->value.integer.value[i] = line6pcm->volume_playback[i]; + + return 0; +} + +/* control put callback */ +static int snd_line6_control_playback_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int i, changed = 0; + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + for (i = 0; i < 2; i++) + if (line6pcm->volume_playback[i] != + ucontrol->value.integer.value[i]) { + line6pcm->volume_playback[i] = + ucontrol->value.integer.value[i]; + changed = 1; + } + + return changed; +} + +/* control definition */ +static const struct snd_kcontrol_new line6_controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Volume", + .info = snd_line6_control_playback_info, + .get = snd_line6_control_playback_get, + .put = snd_line6_control_playback_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Impulse Response Volume", + .info = snd_line6_impulse_volume_info, + .get = snd_line6_impulse_volume_get, + .put = snd_line6_impulse_volume_put + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Impulse Response Period", + .info = snd_line6_impulse_period_info, + .get = snd_line6_impulse_period_get, + .put = snd_line6_impulse_period_put + }, +}; + +/* + Cleanup the PCM device. +*/ +static void cleanup_urbs(struct line6_pcm_stream *pcms, int iso_buffers) +{ + int i; + + /* Most likely impossible in current code... */ + if (pcms->urbs == NULL) + return; + + for (i = 0; i < iso_buffers; i++) { + if (pcms->urbs[i]) { + usb_kill_urb(pcms->urbs[i]); + usb_free_urb(pcms->urbs[i]); + } + } + kfree(pcms->urbs); + pcms->urbs = NULL; +} + +static void line6_cleanup_pcm(struct snd_pcm *pcm) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_chip(pcm); + + cleanup_urbs(&line6pcm->out, line6pcm->line6->iso_buffers); + cleanup_urbs(&line6pcm->in, line6pcm->line6->iso_buffers); + kfree(line6pcm); +} + +/* create a PCM device */ +static int snd_line6_new_pcm(struct usb_line6 *line6, struct snd_pcm **pcm_ret) +{ + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(line6->card, (char *)line6->properties->name, + 0, 1, 1, pcm_ret); + if (err < 0) + return err; + pcm = *pcm_ret; + strcpy(pcm->name, line6->properties->name); + + /* set operators */ + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_line6_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_line6_capture_ops); + + /* pre-allocation of buffers */ + snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, + NULL, 64 * 1024, 128 * 1024); + return 0; +} + +/* + Sync with PCM stream stops. +*/ +void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm) +{ + line6_unlink_audio_urbs(line6pcm, &line6pcm->out); + line6_unlink_audio_urbs(line6pcm, &line6pcm->in); + line6_wait_clear_audio_urbs(line6pcm, &line6pcm->out); + line6_wait_clear_audio_urbs(line6pcm, &line6pcm->in); +} + +/* + Create and register the PCM device and mixer entries. + Create URBs for playback and capture. +*/ +int line6_init_pcm(struct usb_line6 *line6, + struct line6_pcm_properties *properties) +{ + int i, err; + unsigned ep_read = line6->properties->ep_audio_r; + unsigned ep_write = line6->properties->ep_audio_w; + struct snd_pcm *pcm; + struct snd_line6_pcm *line6pcm; + + if (!(line6->properties->capabilities & LINE6_CAP_PCM)) + return 0; /* skip PCM initialization and report success */ + + err = snd_line6_new_pcm(line6, &pcm); + if (err < 0) + return err; + + line6pcm = kzalloc(sizeof(*line6pcm), GFP_KERNEL); + if (!line6pcm) + return -ENOMEM; + + mutex_init(&line6pcm->state_mutex); + line6pcm->pcm = pcm; + line6pcm->properties = properties; + line6pcm->volume_playback[0] = line6pcm->volume_playback[1] = 255; + line6pcm->volume_monitor = 255; + line6pcm->line6 = line6; + + spin_lock_init(&line6pcm->out.lock); + spin_lock_init(&line6pcm->in.lock); + line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD; + + line6->line6pcm = line6pcm; + + pcm->private_data = line6pcm; + pcm->private_free = line6_cleanup_pcm; + + line6pcm->max_packet_size_in = + usb_maxpacket(line6->usbdev, + usb_rcvisocpipe(line6->usbdev, ep_read)); + line6pcm->max_packet_size_out = + usb_maxpacket(line6->usbdev, + usb_sndisocpipe(line6->usbdev, ep_write)); + if (!line6pcm->max_packet_size_in || !line6pcm->max_packet_size_out) { + dev_err(line6pcm->line6->ifcdev, + "cannot get proper max packet size\n"); + return -EINVAL; + } + + err = line6_create_audio_out_urbs(line6pcm); + if (err < 0) + return err; + + err = line6_create_audio_in_urbs(line6pcm); + if (err < 0) + return err; + + /* mixer: */ + for (i = 0; i < ARRAY_SIZE(line6_controls); i++) { + err = snd_ctl_add(line6->card, + snd_ctl_new1(&line6_controls[i], line6pcm)); + if (err < 0) + return err; + } + + return 0; +} +EXPORT_SYMBOL_GPL(line6_init_pcm); + +/* prepare pcm callback */ +int snd_line6_prepare(struct snd_pcm_substream *substream) +{ + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream); + + mutex_lock(&line6pcm->state_mutex); + if (!pstr->running) + line6_wait_clear_audio_urbs(line6pcm, pstr); + + if (!test_and_set_bit(LINE6_FLAG_PREPARED, &line6pcm->flags)) { + line6pcm->out.count = 0; + line6pcm->out.pos = 0; + line6pcm->out.pos_done = 0; + line6pcm->out.bytes = 0; + line6pcm->in.count = 0; + line6pcm->in.pos_done = 0; + line6pcm->in.bytes = 0; + } + + mutex_unlock(&line6pcm->state_mutex); + return 0; +} diff --git a/sound/usb/line6/pcm.h b/sound/usb/line6/pcm.h new file mode 100644 index 000000000..9c683042f --- /dev/null +++ b/sound/usb/line6/pcm.h @@ -0,0 +1,195 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +/* + PCM interface to POD series devices. +*/ + +#ifndef PCM_H +#define PCM_H + +#include <sound/pcm.h> + +#include "driver.h" + +/* + number of USB frames per URB + The Line 6 Windows driver always transmits two frames per packet, but + the Linux driver performs significantly better (i.e., lower latency) + with only one frame per packet. +*/ +#define LINE6_ISO_PACKETS 1 + +/* in a "full speed" device (such as the PODxt Pro) this means 1ms, + * for "high speed" it's 1/8ms + */ +#define LINE6_ISO_INTERVAL 1 + +#define LINE6_IMPULSE_DEFAULT_PERIOD 100 + +/* + Get substream from Line 6 PCM data structure +*/ +#define get_substream(line6pcm, stream) \ + (line6pcm->pcm->streams[stream].substream) + +/* + PCM mode bits. + + There are several features of the Line 6 USB driver which require PCM + data to be exchanged with the device: + *) PCM playback and capture via ALSA + *) software monitoring (for devices without hardware monitoring) + *) optional impulse response measurement + However, from the device's point of view, there is just a single + capture and playback stream, which must be shared between these + subsystems. It is therefore necessary to maintain the state of the + subsystems with respect to PCM usage. + + We define two bit flags, "opened" and "running", for each playback + or capture stream. Both can contain the bit flag corresponding to + LINE6_STREAM_* type, + LINE6_STREAM_PCM = ALSA PCM playback or capture + LINE6_STREAM_MONITOR = software monitoring + IMPULSE = optional impulse response measurement + The opened flag indicates whether the buffer is allocated while + the running flag indicates whether the stream is running. + + For monitor or impulse operations, the driver needs to call + line6_pcm_acquire() or line6_pcm_release() with the appropriate + LINE6_STREAM_* flag. +*/ + +/* stream types */ +enum { + LINE6_STREAM_PCM, + LINE6_STREAM_MONITOR, + LINE6_STREAM_IMPULSE, + LINE6_STREAM_CAPTURE_HELPER, +}; + +/* misc bit flags for PCM operation */ +enum { + LINE6_FLAG_PAUSE_PLAYBACK, + LINE6_FLAG_PREPARED, +}; + +struct line6_pcm_properties { + struct snd_pcm_hardware playback_hw, capture_hw; + struct snd_pcm_hw_constraint_ratdens rates; + int bytes_per_channel; +}; + +struct line6_pcm_stream { + /* allocated URBs */ + struct urb **urbs; + + /* Temporary buffer; + * Since the packet size is not known in advance, this buffer is + * large enough to store maximum size packets. + */ + unsigned char *buffer; + + /* Free frame position in the buffer. */ + snd_pcm_uframes_t pos; + + /* Count processed bytes; + * This is modulo period size (to determine when a period is finished). + */ + unsigned bytes; + + /* Counter to create desired sample rate */ + unsigned count; + + /* period size in bytes */ + unsigned period; + + /* Processed frame position in the buffer; + * The contents of the ring buffer have been consumed by the USB + * subsystem (i.e., sent to the USB device) up to this position. + */ + snd_pcm_uframes_t pos_done; + + /* Bit mask of active URBs */ + unsigned long active_urbs; + + /* Bit mask of URBs currently being unlinked */ + unsigned long unlink_urbs; + + /* Spin lock to protect updates of the buffer positions (not contents) + */ + spinlock_t lock; + + /* Bit flags for operational stream types */ + unsigned long opened; + + /* Bit flags for running stream types */ + unsigned long running; + + int last_frame; +}; + +struct snd_line6_pcm { + /* Pointer back to the Line 6 driver data structure */ + struct usb_line6 *line6; + + /* Properties. */ + struct line6_pcm_properties *properties; + + /* ALSA pcm stream */ + struct snd_pcm *pcm; + + /* protection to state changes of in/out streams */ + struct mutex state_mutex; + + /* Capture and playback streams */ + struct line6_pcm_stream in; + struct line6_pcm_stream out; + + /* Previously captured frame (for software monitoring) */ + unsigned char *prev_fbuf; + + /* Size of previously captured frame (for software monitoring/sync) */ + int prev_fsize; + + /* Maximum size of USB packet */ + int max_packet_size_in; + int max_packet_size_out; + + /* PCM playback volume (left and right) */ + int volume_playback[2]; + + /* PCM monitor volume */ + int volume_monitor; + + /* Volume of impulse response test signal (if zero, test is disabled) */ + int impulse_volume; + + /* Period of impulse response test signal */ + int impulse_period; + + /* Counter for impulse response test signal */ + int impulse_count; + + /* Several status bits (see LINE6_FLAG_*) */ + unsigned long flags; +}; + +extern int line6_init_pcm(struct usb_line6 *line6, + struct line6_pcm_properties *properties); +extern int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd); +extern int snd_line6_prepare(struct snd_pcm_substream *substream); +extern int snd_line6_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params); +extern int snd_line6_hw_free(struct snd_pcm_substream *substream); +extern snd_pcm_uframes_t snd_line6_pointer(struct snd_pcm_substream *substream); +extern void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm); +extern int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int type, + bool start); +extern void line6_pcm_release(struct snd_line6_pcm *line6pcm, int type); + +#endif diff --git a/sound/usb/line6/playback.c b/sound/usb/line6/playback.c new file mode 100644 index 000000000..8233c61e2 --- /dev/null +++ b/sound/usb/line6/playback.c @@ -0,0 +1,439 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "capture.h" +#include "driver.h" +#include "pcm.h" +#include "playback.h" + +/* + Software stereo volume control. +*/ +static void change_volume(struct urb *urb_out, int volume[], + int bytes_per_frame) +{ + int chn = 0; + + if (volume[0] == 256 && volume[1] == 256) + return; /* maximum volume - no change */ + + if (bytes_per_frame == 4) { + __le16 *p, *buf_end; + + p = (__le16 *)urb_out->transfer_buffer; + buf_end = p + urb_out->transfer_buffer_length / sizeof(*p); + + for (; p < buf_end; ++p) { + short pv = le16_to_cpu(*p); + int val = (pv * volume[chn & 1]) >> 8; + pv = clamp(val, -0x8000, 0x7fff); + *p = cpu_to_le16(pv); + ++chn; + } + } else if (bytes_per_frame == 6) { + unsigned char *p, *buf_end; + + p = (unsigned char *)urb_out->transfer_buffer; + buf_end = p + urb_out->transfer_buffer_length; + + for (; p < buf_end; p += 3) { + int val; + + val = p[0] + (p[1] << 8) + ((signed char)p[2] << 16); + val = (val * volume[chn & 1]) >> 8; + val = clamp(val, -0x800000, 0x7fffff); + p[0] = val; + p[1] = val >> 8; + p[2] = val >> 16; + ++chn; + } + } +} + +/* + Create signal for impulse response test. +*/ +static void create_impulse_test_signal(struct snd_line6_pcm *line6pcm, + struct urb *urb_out, int bytes_per_frame) +{ + int frames = urb_out->transfer_buffer_length / bytes_per_frame; + + if (bytes_per_frame == 4) { + int i; + short *pi = (short *)line6pcm->prev_fbuf; + short *po = (short *)urb_out->transfer_buffer; + + for (i = 0; i < frames; ++i) { + po[0] = pi[0]; + po[1] = 0; + pi += 2; + po += 2; + } + } else if (bytes_per_frame == 6) { + int i, j; + unsigned char *pi = line6pcm->prev_fbuf; + unsigned char *po = urb_out->transfer_buffer; + + for (i = 0; i < frames; ++i) { + for (j = 0; j < bytes_per_frame / 2; ++j) + po[j] = pi[j]; + + for (; j < bytes_per_frame; ++j) + po[j] = 0; + + pi += bytes_per_frame; + po += bytes_per_frame; + } + } + if (--line6pcm->impulse_count <= 0) { + ((unsigned char *)(urb_out->transfer_buffer))[bytes_per_frame - + 1] = + line6pcm->impulse_volume; + line6pcm->impulse_count = line6pcm->impulse_period; + } +} + +/* + Add signal to buffer for software monitoring. +*/ +static void add_monitor_signal(struct urb *urb_out, unsigned char *signal, + int volume, int bytes_per_frame) +{ + if (volume == 0) + return; /* zero volume - no change */ + + if (bytes_per_frame == 4) { + __le16 *pi, *po, *buf_end; + + pi = (__le16 *)signal; + po = (__le16 *)urb_out->transfer_buffer; + buf_end = po + urb_out->transfer_buffer_length / sizeof(*po); + + for (; po < buf_end; ++pi, ++po) { + short pov = le16_to_cpu(*po); + short piv = le16_to_cpu(*pi); + int val = pov + ((piv * volume) >> 8); + pov = clamp(val, -0x8000, 0x7fff); + *po = cpu_to_le16(pov); + } + } + + /* + We don't need to handle devices with 6 bytes per frame here + since they all support hardware monitoring. + */ +} + +/* + Find a free URB, prepare audio data, and submit URB. + must be called in line6pcm->out.lock context +*/ +static int submit_audio_out_urb(struct snd_line6_pcm *line6pcm) +{ + int index; + int i, urb_size, urb_frames; + int ret; + const int bytes_per_frame = + line6pcm->properties->bytes_per_channel * + line6pcm->properties->playback_hw.channels_max; + const int frame_increment = + line6pcm->properties->rates.rats[0].num_min; + const int frame_factor = + line6pcm->properties->rates.rats[0].den * + (line6pcm->line6->intervals_per_second / LINE6_ISO_INTERVAL); + struct urb *urb_out; + + index = find_first_zero_bit(&line6pcm->out.active_urbs, + line6pcm->line6->iso_buffers); + + if (index < 0 || index >= line6pcm->line6->iso_buffers) { + dev_err(line6pcm->line6->ifcdev, "no free URB found\n"); + return -EINVAL; + } + + urb_out = line6pcm->out.urbs[index]; + urb_size = 0; + + /* TODO: this may not work for LINE6_ISO_PACKETS != 1 */ + for (i = 0; i < LINE6_ISO_PACKETS; ++i) { + /* compute frame size for given sampling rate */ + int fsize = 0; + struct usb_iso_packet_descriptor *fout = + &urb_out->iso_frame_desc[i]; + + fsize = line6pcm->prev_fsize; + if (fsize == 0) { + int n; + + line6pcm->out.count += frame_increment; + n = line6pcm->out.count / frame_factor; + line6pcm->out.count -= n * frame_factor; + fsize = n; + } + + fsize *= bytes_per_frame; + + fout->offset = urb_size; + fout->length = fsize; + urb_size += fsize; + } + + if (urb_size == 0) { + /* can't determine URB size */ + dev_err(line6pcm->line6->ifcdev, "driver bug: urb_size = 0\n"); + return -EINVAL; + } + + urb_frames = urb_size / bytes_per_frame; + urb_out->transfer_buffer = + line6pcm->out.buffer + + index * LINE6_ISO_PACKETS * line6pcm->max_packet_size_out; + urb_out->transfer_buffer_length = urb_size; + urb_out->context = line6pcm; + + if (test_bit(LINE6_STREAM_PCM, &line6pcm->out.running) && + !test_bit(LINE6_FLAG_PAUSE_PLAYBACK, &line6pcm->flags)) { + struct snd_pcm_runtime *runtime = + get_substream(line6pcm, SNDRV_PCM_STREAM_PLAYBACK)->runtime; + + if (line6pcm->out.pos + urb_frames > runtime->buffer_size) { + /* + The transferred area goes over buffer boundary, + copy the data to the temp buffer. + */ + int len; + + len = runtime->buffer_size - line6pcm->out.pos; + + if (len > 0) { + memcpy(urb_out->transfer_buffer, + runtime->dma_area + + line6pcm->out.pos * bytes_per_frame, + len * bytes_per_frame); + memcpy(urb_out->transfer_buffer + + len * bytes_per_frame, runtime->dma_area, + (urb_frames - len) * bytes_per_frame); + } else + dev_err(line6pcm->line6->ifcdev, "driver bug: len = %d\n", + len); + } else { + memcpy(urb_out->transfer_buffer, + runtime->dma_area + + line6pcm->out.pos * bytes_per_frame, + urb_out->transfer_buffer_length); + } + + line6pcm->out.pos += urb_frames; + if (line6pcm->out.pos >= runtime->buffer_size) + line6pcm->out.pos -= runtime->buffer_size; + + change_volume(urb_out, line6pcm->volume_playback, + bytes_per_frame); + } else { + memset(urb_out->transfer_buffer, 0, + urb_out->transfer_buffer_length); + } + + spin_lock_nested(&line6pcm->in.lock, SINGLE_DEPTH_NESTING); + if (line6pcm->prev_fbuf) { + if (test_bit(LINE6_STREAM_IMPULSE, &line6pcm->out.running)) { + create_impulse_test_signal(line6pcm, urb_out, + bytes_per_frame); + if (test_bit(LINE6_STREAM_PCM, &line6pcm->in.running)) { + line6_capture_copy(line6pcm, + urb_out->transfer_buffer, + urb_out-> + transfer_buffer_length); + line6_capture_check_period(line6pcm, + urb_out->transfer_buffer_length); + } + } else { + if (!(line6pcm->line6->properties->capabilities & LINE6_CAP_HWMON) + && line6pcm->out.running && line6pcm->in.running) + add_monitor_signal(urb_out, line6pcm->prev_fbuf, + line6pcm->volume_monitor, + bytes_per_frame); + } + line6pcm->prev_fbuf = NULL; + line6pcm->prev_fsize = 0; + } + spin_unlock(&line6pcm->in.lock); + + ret = usb_submit_urb(urb_out, GFP_ATOMIC); + + if (ret == 0) + set_bit(index, &line6pcm->out.active_urbs); + else + dev_err(line6pcm->line6->ifcdev, + "URB out #%d submission failed (%d)\n", index, ret); + + return 0; +} + +/* + Submit all currently available playback URBs. + must be called in line6pcm->out.lock context + */ +int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm) +{ + int ret = 0, i; + + for (i = 0; i < line6pcm->line6->iso_buffers; ++i) { + ret = submit_audio_out_urb(line6pcm); + if (ret < 0) + break; + } + + return ret; +} + +/* + Callback for completed playback URB. +*/ +static void audio_out_callback(struct urb *urb) +{ + int i, index, length = 0, shutdown = 0; + unsigned long flags; + struct snd_line6_pcm *line6pcm = (struct snd_line6_pcm *)urb->context; + struct snd_pcm_substream *substream = + get_substream(line6pcm, SNDRV_PCM_STREAM_PLAYBACK); + const int bytes_per_frame = + line6pcm->properties->bytes_per_channel * + line6pcm->properties->playback_hw.channels_max; + +#if USE_CLEAR_BUFFER_WORKAROUND + memset(urb->transfer_buffer, 0, urb->transfer_buffer_length); +#endif + + line6pcm->out.last_frame = urb->start_frame; + + /* find index of URB */ + for (index = 0; index < line6pcm->line6->iso_buffers; index++) + if (urb == line6pcm->out.urbs[index]) + break; + + if (index >= line6pcm->line6->iso_buffers) + return; /* URB has been unlinked asynchronously */ + + for (i = 0; i < LINE6_ISO_PACKETS; i++) + length += urb->iso_frame_desc[i].length; + + spin_lock_irqsave(&line6pcm->out.lock, flags); + + if (test_bit(LINE6_STREAM_PCM, &line6pcm->out.running)) { + struct snd_pcm_runtime *runtime = substream->runtime; + + line6pcm->out.pos_done += + length / bytes_per_frame; + + if (line6pcm->out.pos_done >= runtime->buffer_size) + line6pcm->out.pos_done -= runtime->buffer_size; + } + + clear_bit(index, &line6pcm->out.active_urbs); + + for (i = 0; i < LINE6_ISO_PACKETS; i++) + if (urb->iso_frame_desc[i].status == -EXDEV) { + shutdown = 1; + break; + } + + if (test_and_clear_bit(index, &line6pcm->out.unlink_urbs)) + shutdown = 1; + + if (!shutdown) { + submit_audio_out_urb(line6pcm); + + if (test_bit(LINE6_STREAM_PCM, &line6pcm->out.running)) { + line6pcm->out.bytes += length; + if (line6pcm->out.bytes >= line6pcm->out.period) { + line6pcm->out.bytes %= line6pcm->out.period; + spin_unlock(&line6pcm->out.lock); + snd_pcm_period_elapsed(substream); + spin_lock(&line6pcm->out.lock); + } + } + } + spin_unlock_irqrestore(&line6pcm->out.lock, flags); +} + +/* open playback callback */ +static int snd_line6_playback_open(struct snd_pcm_substream *substream) +{ + int err; + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream); + + err = snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &line6pcm->properties->rates); + if (err < 0) + return err; + + runtime->hw = line6pcm->properties->playback_hw; + return 0; +} + +/* close playback callback */ +static int snd_line6_playback_close(struct snd_pcm_substream *substream) +{ + return 0; +} + +/* playback operators */ +const struct snd_pcm_ops snd_line6_playback_ops = { + .open = snd_line6_playback_open, + .close = snd_line6_playback_close, + .hw_params = snd_line6_hw_params, + .hw_free = snd_line6_hw_free, + .prepare = snd_line6_prepare, + .trigger = snd_line6_trigger, + .pointer = snd_line6_pointer, +}; + +int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm) +{ + struct usb_line6 *line6 = line6pcm->line6; + int i; + + line6pcm->out.urbs = kcalloc(line6->iso_buffers, sizeof(struct urb *), + GFP_KERNEL); + if (line6pcm->out.urbs == NULL) + return -ENOMEM; + + /* create audio URBs and fill in constant values: */ + for (i = 0; i < line6->iso_buffers; ++i) { + struct urb *urb; + + /* URB for audio out: */ + urb = line6pcm->out.urbs[i] = + usb_alloc_urb(LINE6_ISO_PACKETS, GFP_KERNEL); + + if (urb == NULL) + return -ENOMEM; + + urb->dev = line6->usbdev; + urb->pipe = + usb_sndisocpipe(line6->usbdev, + line6->properties->ep_audio_w & + USB_ENDPOINT_NUMBER_MASK); + urb->transfer_flags = URB_ISO_ASAP; + urb->start_frame = -1; + urb->number_of_packets = LINE6_ISO_PACKETS; + urb->interval = LINE6_ISO_INTERVAL; + urb->error_count = 0; + urb->complete = audio_out_callback; + if (usb_urb_ep_type_check(urb)) + return -EINVAL; + } + + return 0; +} diff --git a/sound/usb/line6/playback.h b/sound/usb/line6/playback.h new file mode 100644 index 000000000..2ca832c83 --- /dev/null +++ b/sound/usb/line6/playback.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#ifndef PLAYBACK_H +#define PLAYBACK_H + +#include <sound/pcm.h> + +#include "driver.h" + +/* + * When the TonePort is used with jack in full duplex mode and the outputs are + * not connected, the software monitor produces an ugly noise since everything + * written to the output buffer (i.e., the input signal) will be repeated in + * the next period (sounds like a delay effect). As a workaround, the output + * buffer is cleared after the data have been read, but there must be a better + * solution. Until one is found, this workaround can be used to fix the + * problem. + */ +#define USE_CLEAR_BUFFER_WORKAROUND 1 + +extern const struct snd_pcm_ops snd_line6_playback_ops; + +extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm); +extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm); + +#endif diff --git a/sound/usb/line6/pod.c b/sound/usb/line6/pod.c new file mode 100644 index 000000000..d173971e5 --- /dev/null +++ b/sound/usb/line6/pod.c @@ -0,0 +1,542 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/slab.h> +#include <linux/wait.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/usb.h> + +#include <sound/core.h> +#include <sound/control.h> + +#include "capture.h" +#include "driver.h" +#include "playback.h" + +/* + Locate name in binary program dump +*/ +#define POD_NAME_OFFSET 0 +#define POD_NAME_LENGTH 16 + +/* + Other constants +*/ +#define POD_CONTROL_SIZE 0x80 +#define POD_BUFSIZE_DUMPREQ 7 +#define POD_STARTUP_DELAY 1000 + +/* + Stages of POD startup procedure +*/ +enum { + POD_STARTUP_VERSIONREQ, + POD_STARTUP_SETUP, + POD_STARTUP_DONE, +}; + +enum { + LINE6_BASSPODXT, + LINE6_BASSPODXTLIVE, + LINE6_BASSPODXTPRO, + LINE6_POCKETPOD, + LINE6_PODXT, + LINE6_PODXTLIVE_POD, + LINE6_PODXTPRO, +}; + +struct usb_line6_pod { + /* Generic Line 6 USB data */ + struct usb_line6 line6; + + /* Instrument monitor level */ + int monitor_level; + + /* Current progress in startup procedure */ + int startup_progress; + + /* Serial number of device */ + u32 serial_number; + + /* Firmware version (x 100) */ + int firmware_version; + + /* Device ID */ + int device_id; +}; + +#define line6_to_pod(x) container_of(x, struct usb_line6_pod, line6) + +#define POD_SYSEX_CODE 3 + +/* *INDENT-OFF* */ + +enum { + POD_SYSEX_SAVE = 0x24, + POD_SYSEX_SYSTEM = 0x56, + POD_SYSEX_SYSTEMREQ = 0x57, + /* POD_SYSEX_UPDATE = 0x6c, */ /* software update! */ + POD_SYSEX_STORE = 0x71, + POD_SYSEX_FINISH = 0x72, + POD_SYSEX_DUMPMEM = 0x73, + POD_SYSEX_DUMP = 0x74, + POD_SYSEX_DUMPREQ = 0x75 + + /* dumps entire internal memory of PODxt Pro */ + /* POD_SYSEX_DUMPMEM2 = 0x76 */ +}; + +enum { + POD_MONITOR_LEVEL = 0x04, + POD_SYSTEM_INVALID = 0x10000 +}; + +/* *INDENT-ON* */ + +enum { + POD_DUMP_MEMORY = 2 +}; + +enum { + POD_BUSY_READ, + POD_BUSY_WRITE, + POD_CHANNEL_DIRTY, + POD_SAVE_PRESSED, + POD_BUSY_MIDISEND +}; + +static const struct snd_ratden pod_ratden = { + .num_min = 78125, + .num_max = 78125, + .num_step = 1, + .den = 2 +}; + +static struct line6_pcm_properties pod_pcm_properties = { + .playback_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = 39062, + .rate_max = 39063, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .capture_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = 39062, + .rate_max = 39063, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .rates = { + .nrats = 1, + .rats = &pod_ratden}, + .bytes_per_channel = 3 /* SNDRV_PCM_FMTBIT_S24_3LE */ +}; + + +static const char pod_version_header[] = { + 0xf0, 0x7e, 0x7f, 0x06, 0x02 +}; + +static char *pod_alloc_sysex_buffer(struct usb_line6_pod *pod, int code, + int size) +{ + return line6_alloc_sysex_buffer(&pod->line6, POD_SYSEX_CODE, code, + size); +} + +/* + Process a completely received message. +*/ +static void line6_pod_process_message(struct usb_line6 *line6) +{ + struct usb_line6_pod *pod = line6_to_pod(line6); + const unsigned char *buf = pod->line6.buffer_message; + + if (memcmp(buf, pod_version_header, sizeof(pod_version_header)) == 0) { + pod->firmware_version = buf[13] * 100 + buf[14] * 10 + buf[15]; + pod->device_id = ((int)buf[8] << 16) | ((int)buf[9] << 8) | + (int) buf[10]; + if (pod->startup_progress == POD_STARTUP_VERSIONREQ) { + pod->startup_progress = POD_STARTUP_SETUP; + schedule_delayed_work(&line6->startup_work, 0); + } + return; + } + + /* Only look for sysex messages from this device */ + if (buf[0] != (LINE6_SYSEX_BEGIN | LINE6_CHANNEL_DEVICE) && + buf[0] != (LINE6_SYSEX_BEGIN | LINE6_CHANNEL_UNKNOWN)) { + return; + } + if (memcmp(buf + 1, line6_midi_id, sizeof(line6_midi_id)) != 0) + return; + + if (buf[5] == POD_SYSEX_SYSTEM && buf[6] == POD_MONITOR_LEVEL) { + short value = ((int)buf[7] << 12) | ((int)buf[8] << 8) | + ((int)buf[9] << 4) | (int)buf[10]; + pod->monitor_level = value; + } +} + +/* + Send system parameter (from integer). +*/ +static int pod_set_system_param_int(struct usb_line6_pod *pod, int value, + int code) +{ + char *sysex; + static const int size = 5; + + sysex = pod_alloc_sysex_buffer(pod, POD_SYSEX_SYSTEM, size); + if (!sysex) + return -ENOMEM; + sysex[SYSEX_DATA_OFS] = code; + sysex[SYSEX_DATA_OFS + 1] = (value >> 12) & 0x0f; + sysex[SYSEX_DATA_OFS + 2] = (value >> 8) & 0x0f; + sysex[SYSEX_DATA_OFS + 3] = (value >> 4) & 0x0f; + sysex[SYSEX_DATA_OFS + 4] = (value) & 0x0f; + line6_send_sysex_message(&pod->line6, sysex, size); + kfree(sysex); + return 0; +} + +/* + "read" request on "serial_number" special file. +*/ +static ssize_t serial_number_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct snd_card *card = dev_to_snd_card(dev); + struct usb_line6_pod *pod = card->private_data; + + return sysfs_emit(buf, "%u\n", pod->serial_number); +} + +/* + "read" request on "firmware_version" special file. +*/ +static ssize_t firmware_version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct snd_card *card = dev_to_snd_card(dev); + struct usb_line6_pod *pod = card->private_data; + + return sysfs_emit(buf, "%d.%02d\n", pod->firmware_version / 100, + pod->firmware_version % 100); +} + +/* + "read" request on "device_id" special file. +*/ +static ssize_t device_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct snd_card *card = dev_to_snd_card(dev); + struct usb_line6_pod *pod = card->private_data; + + return sysfs_emit(buf, "%d\n", pod->device_id); +} + +/* + POD startup procedure. + This is a sequence of functions with special requirements (e.g., must + not run immediately after initialization, must not run in interrupt + context). After the last one has finished, the device is ready to use. +*/ + +static void pod_startup(struct usb_line6 *line6) +{ + struct usb_line6_pod *pod = line6_to_pod(line6); + + switch (pod->startup_progress) { + case POD_STARTUP_VERSIONREQ: + /* request firmware version: */ + line6_version_request_async(line6); + break; + case POD_STARTUP_SETUP: + /* serial number: */ + line6_read_serial_number(&pod->line6, &pod->serial_number); + + /* ALSA audio interface: */ + if (snd_card_register(line6->card)) + dev_err(line6->ifcdev, "Failed to register POD card.\n"); + pod->startup_progress = POD_STARTUP_DONE; + break; + default: + break; + } +} + +/* POD special files: */ +static DEVICE_ATTR_RO(device_id); +static DEVICE_ATTR_RO(firmware_version); +static DEVICE_ATTR_RO(serial_number); + +static struct attribute *pod_dev_attrs[] = { + &dev_attr_device_id.attr, + &dev_attr_firmware_version.attr, + &dev_attr_serial_number.attr, + NULL +}; + +static const struct attribute_group pod_dev_attr_group = { + .name = "pod", + .attrs = pod_dev_attrs, +}; + +/* control info callback */ +static int snd_pod_control_monitor_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 65535; + return 0; +} + +/* control get callback */ +static int snd_pod_control_monitor_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_pod *pod = line6_to_pod(line6pcm->line6); + + ucontrol->value.integer.value[0] = pod->monitor_level; + return 0; +} + +/* control put callback */ +static int snd_pod_control_monitor_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_pod *pod = line6_to_pod(line6pcm->line6); + + if (ucontrol->value.integer.value[0] == pod->monitor_level) + return 0; + + pod->monitor_level = ucontrol->value.integer.value[0]; + pod_set_system_param_int(pod, ucontrol->value.integer.value[0], + POD_MONITOR_LEVEL); + return 1; +} + +/* control definition */ +static const struct snd_kcontrol_new pod_control_monitor = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Monitor Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_pod_control_monitor_info, + .get = snd_pod_control_monitor_get, + .put = snd_pod_control_monitor_put +}; + +/* + Try to init POD device. +*/ +static int pod_init(struct usb_line6 *line6, + const struct usb_device_id *id) +{ + int err; + struct usb_line6_pod *pod = line6_to_pod(line6); + + line6->process_message = line6_pod_process_message; + line6->startup = pod_startup; + + /* create sysfs entries: */ + err = snd_card_add_dev_attr(line6->card, &pod_dev_attr_group); + if (err < 0) + return err; + + /* initialize PCM subsystem: */ + err = line6_init_pcm(line6, &pod_pcm_properties); + if (err < 0) + return err; + + /* register monitor control: */ + err = snd_ctl_add(line6->card, + snd_ctl_new1(&pod_control_monitor, line6->line6pcm)); + if (err < 0) + return err; + + /* + When the sound card is registered at this point, the PODxt Live + displays "Invalid Code Error 07", so we do it later in the event + handler. + */ + + if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL) { + pod->monitor_level = POD_SYSTEM_INVALID; + + /* initiate startup procedure: */ + schedule_delayed_work(&line6->startup_work, + msecs_to_jiffies(POD_STARTUP_DELAY)); + } + + return 0; +} + +#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod) +#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n) + +/* table of devices that work with this driver */ +static const struct usb_device_id pod_id_table[] = { + { LINE6_DEVICE(0x4250), .driver_info = LINE6_BASSPODXT }, + { LINE6_DEVICE(0x4642), .driver_info = LINE6_BASSPODXTLIVE }, + { LINE6_DEVICE(0x4252), .driver_info = LINE6_BASSPODXTPRO }, + { LINE6_IF_NUM(0x5051, 1), .driver_info = LINE6_POCKETPOD }, + { LINE6_DEVICE(0x5044), .driver_info = LINE6_PODXT }, + { LINE6_IF_NUM(0x4650, 0), .driver_info = LINE6_PODXTLIVE_POD }, + { LINE6_DEVICE(0x5050), .driver_info = LINE6_PODXTPRO }, + {} +}; + +MODULE_DEVICE_TABLE(usb, pod_id_table); + +static const struct line6_properties pod_properties_table[] = { + [LINE6_BASSPODXT] = { + .id = "BassPODxt", + .name = "BassPODxt", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_BASSPODXTLIVE] = { + .id = "BassPODxtLive", + .name = "BassPODxt Live", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_BASSPODXTPRO] = { + .id = "BassPODxtPro", + .name = "BassPODxt Pro", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_POCKETPOD] = { + .id = "PocketPOD", + .name = "Pocket POD", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI, + .altsetting = 0, + .ep_ctrl_r = 0x82, + .ep_ctrl_w = 0x02, + /* no audio channel */ + }, + [LINE6_PODXT] = { + .id = "PODxt", + .name = "PODxt", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODXTLIVE_POD] = { + .id = "PODxtLive", + .name = "PODxt Live", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODXTPRO] = { + .id = "PODxtPro", + .name = "PODxt Pro", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI + | LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, +}; + +/* + Probe USB device. +*/ +static int pod_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + return line6_probe(interface, id, "Line6-POD", + &pod_properties_table[id->driver_info], + pod_init, sizeof(struct usb_line6_pod)); +} + +static struct usb_driver pod_driver = { + .name = KBUILD_MODNAME, + .probe = pod_probe, + .disconnect = line6_disconnect, +#ifdef CONFIG_PM + .suspend = line6_suspend, + .resume = line6_resume, + .reset_resume = line6_resume, +#endif + .id_table = pod_id_table, +}; + +module_usb_driver(pod_driver); + +MODULE_DESCRIPTION("Line 6 POD USB driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/usb/line6/podhd.c b/sound/usb/line6/podhd.c new file mode 100644 index 000000000..ffd8c157a --- /dev/null +++ b/sound/usb/line6/podhd.c @@ -0,0 +1,559 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Pod HD + * + * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com> + * Copyright (C) 2015 Andrej Krutak <dev@andree.sk> + * Copyright (C) 2017 Hans P. Moller <hmoller@uc.cl> + */ + +#include <linux/usb.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> + +#include "driver.h" +#include "pcm.h" + +#define PODHD_STARTUP_DELAY 500 + +enum { + LINE6_PODHD300, + LINE6_PODHD400, + LINE6_PODHD500, + LINE6_PODX3, + LINE6_PODX3LIVE, + LINE6_PODHD500X, + LINE6_PODHDDESKTOP +}; + +struct usb_line6_podhd { + /* Generic Line 6 USB data */ + struct usb_line6 line6; + + /* Serial number of device */ + u32 serial_number; + + /* Firmware version */ + int firmware_version; + + /* Monitor level */ + int monitor_level; +}; + +#define line6_to_podhd(x) container_of(x, struct usb_line6_podhd, line6) + +static const struct snd_ratden podhd_ratden = { + .num_min = 48000, + .num_max = 48000, + .num_step = 1, + .den = 1, +}; + +static struct line6_pcm_properties podhd_pcm_properties = { + .playback_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .capture_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .rates = { + .nrats = 1, + .rats = &podhd_ratden}, + .bytes_per_channel = 3 /* SNDRV_PCM_FMTBIT_S24_3LE */ +}; + +static struct line6_pcm_properties podx3_pcm_properties = { + .playback_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .capture_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + /* 1+2: Main signal (out), 3+4: Tone 1, + * 5+6: Tone 2, 7+8: raw + */ + .channels_min = 8, + .channels_max = 8, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .rates = { + .nrats = 1, + .rats = &podhd_ratden}, + .bytes_per_channel = 3 /* SNDRV_PCM_FMTBIT_S24_3LE */ +}; +static struct usb_driver podhd_driver; + +static ssize_t serial_number_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct snd_card *card = dev_to_snd_card(dev); + struct usb_line6_podhd *pod = card->private_data; + + return sysfs_emit(buf, "%u\n", pod->serial_number); +} + +static ssize_t firmware_version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct snd_card *card = dev_to_snd_card(dev); + struct usb_line6_podhd *pod = card->private_data; + + return sysfs_emit(buf, "%06x\n", pod->firmware_version); +} + +static DEVICE_ATTR_RO(firmware_version); +static DEVICE_ATTR_RO(serial_number); + +static struct attribute *podhd_dev_attrs[] = { + &dev_attr_firmware_version.attr, + &dev_attr_serial_number.attr, + NULL +}; + +static const struct attribute_group podhd_dev_attr_group = { + .name = "podhd", + .attrs = podhd_dev_attrs, +}; + +/* + * POD X3 startup procedure. + * + * May be compatible with other POD HD's, since it's also similar to the + * previous POD setup. In any case, it doesn't seem to be required for the + * audio nor bulk interfaces to work. + */ + +static int podhd_dev_start(struct usb_line6_podhd *pod) +{ + int ret; + u8 init_bytes[8]; + int i; + struct usb_device *usbdev = pod->line6.usbdev; + + ret = usb_control_msg_send(usbdev, 0, + 0x67, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, + 0x11, 0, + NULL, 0, LINE6_TIMEOUT, GFP_KERNEL); + if (ret) { + dev_err(pod->line6.ifcdev, "read request failed (error %d)\n", ret); + goto exit; + } + + /* NOTE: looks like some kind of ping message */ + ret = usb_control_msg_recv(usbdev, 0, 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0x11, 0x0, + init_bytes, 3, LINE6_TIMEOUT, GFP_KERNEL); + if (ret) { + dev_err(pod->line6.ifcdev, + "receive length failed (error %d)\n", ret); + goto exit; + } + + pod->firmware_version = + (init_bytes[0] << 16) | (init_bytes[1] << 8) | (init_bytes[2] << 0); + + for (i = 0; i <= 16; i++) { + ret = line6_read_data(&pod->line6, 0xf000 + 0x08 * i, init_bytes, 8); + if (ret < 0) + goto exit; + } + + ret = usb_control_msg_send(usbdev, 0, + USB_REQ_SET_FEATURE, + USB_TYPE_STANDARD | USB_RECIP_DEVICE | USB_DIR_OUT, + 1, 0, + NULL, 0, LINE6_TIMEOUT, GFP_KERNEL); +exit: + return ret; +} + +static void podhd_startup(struct usb_line6 *line6) +{ + struct usb_line6_podhd *pod = line6_to_podhd(line6); + + podhd_dev_start(pod); + line6_read_serial_number(&pod->line6, &pod->serial_number); + if (snd_card_register(line6->card)) + dev_err(line6->ifcdev, "Failed to register POD HD card.\n"); +} + +static void podhd_disconnect(struct usb_line6 *line6) +{ + struct usb_line6_podhd *pod = line6_to_podhd(line6); + + if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL_INFO) { + struct usb_interface *intf; + + intf = usb_ifnum_to_if(line6->usbdev, + pod->line6.properties->ctrl_if); + if (intf) + usb_driver_release_interface(&podhd_driver, intf); + } +} + +static const unsigned int float_zero_to_one_lookup[] = { +0x00000000, 0x3c23d70a, 0x3ca3d70a, 0x3cf5c28f, 0x3d23d70a, 0x3d4ccccd, +0x3d75c28f, 0x3d8f5c29, 0x3da3d70a, 0x3db851ec, 0x3dcccccd, 0x3de147ae, +0x3df5c28f, 0x3e051eb8, 0x3e0f5c29, 0x3e19999a, 0x3e23d70a, 0x3e2e147b, +0x3e3851ec, 0x3e428f5c, 0x3e4ccccd, 0x3e570a3d, 0x3e6147ae, 0x3e6b851f, +0x3e75c28f, 0x3e800000, 0x3e851eb8, 0x3e8a3d71, 0x3e8f5c29, 0x3e947ae1, +0x3e99999a, 0x3e9eb852, 0x3ea3d70a, 0x3ea8f5c3, 0x3eae147b, 0x3eb33333, +0x3eb851ec, 0x3ebd70a4, 0x3ec28f5c, 0x3ec7ae14, 0x3ecccccd, 0x3ed1eb85, +0x3ed70a3d, 0x3edc28f6, 0x3ee147ae, 0x3ee66666, 0x3eeb851f, 0x3ef0a3d7, +0x3ef5c28f, 0x3efae148, 0x3f000000, 0x3f028f5c, 0x3f051eb8, 0x3f07ae14, +0x3f0a3d71, 0x3f0ccccd, 0x3f0f5c29, 0x3f11eb85, 0x3f147ae1, 0x3f170a3d, +0x3f19999a, 0x3f1c28f6, 0x3f1eb852, 0x3f2147ae, 0x3f23d70a, 0x3f266666, +0x3f28f5c3, 0x3f2b851f, 0x3f2e147b, 0x3f30a3d7, 0x3f333333, 0x3f35c28f, +0x3f3851ec, 0x3f3ae148, 0x3f3d70a4, 0x3f400000, 0x3f428f5c, 0x3f451eb8, +0x3f47ae14, 0x3f4a3d71, 0x3f4ccccd, 0x3f4f5c29, 0x3f51eb85, 0x3f547ae1, +0x3f570a3d, 0x3f59999a, 0x3f5c28f6, 0x3f5eb852, 0x3f6147ae, 0x3f63d70a, +0x3f666666, 0x3f68f5c3, 0x3f6b851f, 0x3f6e147b, 0x3f70a3d7, 0x3f733333, +0x3f75c28f, 0x3f7851ec, 0x3f7ae148, 0x3f7d70a4, 0x3f800000 +}; + +static void podhd_set_monitor_level(struct usb_line6_podhd *podhd, int value) +{ + unsigned int fl; + static const unsigned char msg[16] = { + /* Chunk is 0xc bytes (without first word) */ + 0x0c, 0x00, + /* First chunk in the message */ + 0x01, 0x00, + /* Message size is 2 4-byte words */ + 0x02, 0x00, + /* Unknown */ + 0x04, 0x41, + /* Unknown */ + 0x04, 0x00, 0x13, 0x00, + /* Volume, LE float32, 0.0 - 1.0 */ + 0x00, 0x00, 0x00, 0x00 + }; + unsigned char *buf; + + buf = kmemdup(msg, sizeof(msg), GFP_KERNEL); + if (!buf) + return; + + if (value < 0) + value = 0; + + if (value >= ARRAY_SIZE(float_zero_to_one_lookup)) + value = ARRAY_SIZE(float_zero_to_one_lookup) - 1; + + fl = float_zero_to_one_lookup[value]; + + buf[12] = (fl >> 0) & 0xff; + buf[13] = (fl >> 8) & 0xff; + buf[14] = (fl >> 16) & 0xff; + buf[15] = (fl >> 24) & 0xff; + + line6_send_raw_message(&podhd->line6, buf, sizeof(msg)); + kfree(buf); + + podhd->monitor_level = value; +} + +/* control info callback */ +static int snd_podhd_control_monitor_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 100; + uinfo->value.integer.step = 1; + return 0; +} + +/* control get callback */ +static int snd_podhd_control_monitor_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_podhd *podhd = line6_to_podhd(line6pcm->line6); + + ucontrol->value.integer.value[0] = podhd->monitor_level; + return 0; +} + +/* control put callback */ +static int snd_podhd_control_monitor_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_podhd *podhd = line6_to_podhd(line6pcm->line6); + + if (ucontrol->value.integer.value[0] == podhd->monitor_level) + return 0; + + podhd_set_monitor_level(podhd, ucontrol->value.integer.value[0]); + return 1; +} + +/* control definition */ +static const struct snd_kcontrol_new podhd_control_monitor = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Monitor Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_podhd_control_monitor_info, + .get = snd_podhd_control_monitor_get, + .put = snd_podhd_control_monitor_put +}; + +/* + Try to init POD HD device. +*/ +static int podhd_init(struct usb_line6 *line6, + const struct usb_device_id *id) +{ + int err; + struct usb_line6_podhd *pod = line6_to_podhd(line6); + struct usb_interface *intf; + + line6->disconnect = podhd_disconnect; + line6->startup = podhd_startup; + + if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL) { + /* claim the data interface */ + intf = usb_ifnum_to_if(line6->usbdev, + pod->line6.properties->ctrl_if); + if (!intf) { + dev_err(pod->line6.ifcdev, "interface %d not found\n", + pod->line6.properties->ctrl_if); + return -ENODEV; + } + + err = usb_driver_claim_interface(&podhd_driver, intf, NULL); + if (err != 0) { + dev_err(pod->line6.ifcdev, "can't claim interface %d, error %d\n", + pod->line6.properties->ctrl_if, err); + return err; + } + } + + if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL_INFO) { + /* create sysfs entries: */ + err = snd_card_add_dev_attr(line6->card, &podhd_dev_attr_group); + if (err < 0) + return err; + } + + if (pod->line6.properties->capabilities & LINE6_CAP_PCM) { + /* initialize PCM subsystem: */ + err = line6_init_pcm(line6, + (id->driver_info == LINE6_PODX3 || + id->driver_info == LINE6_PODX3LIVE) ? &podx3_pcm_properties : + &podhd_pcm_properties); + if (err < 0) + return err; + } + + if (pod->line6.properties->capabilities & LINE6_CAP_HWMON_CTL) { + podhd_set_monitor_level(pod, 100); + err = snd_ctl_add(line6->card, + snd_ctl_new1(&podhd_control_monitor, + line6->line6pcm)); + if (err < 0) + return err; + } + + if (!(pod->line6.properties->capabilities & LINE6_CAP_CONTROL_INFO)) { + /* register USB audio system directly */ + return snd_card_register(line6->card); + } + + /* init device and delay registering */ + schedule_delayed_work(&line6->startup_work, + msecs_to_jiffies(PODHD_STARTUP_DELAY)); + return 0; +} + +#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod) +#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n) + +/* table of devices that work with this driver */ +static const struct usb_device_id podhd_id_table[] = { + /* TODO: no need to alloc data interfaces when only audio is used */ + { LINE6_DEVICE(0x5057), .driver_info = LINE6_PODHD300 }, + { LINE6_DEVICE(0x5058), .driver_info = LINE6_PODHD400 }, + { LINE6_IF_NUM(0x414D, 0), .driver_info = LINE6_PODHD500 }, + { LINE6_IF_NUM(0x414A, 0), .driver_info = LINE6_PODX3 }, + { LINE6_IF_NUM(0x414B, 0), .driver_info = LINE6_PODX3LIVE }, + { LINE6_IF_NUM(0x4159, 0), .driver_info = LINE6_PODHD500X }, + { LINE6_IF_NUM(0x4156, 0), .driver_info = LINE6_PODHDDESKTOP }, + {} +}; + +MODULE_DEVICE_TABLE(usb, podhd_id_table); + +static const struct line6_properties podhd_properties_table[] = { + [LINE6_PODHD300] = { + .id = "PODHD300", + .name = "POD HD300", + .capabilities = LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODHD400] = { + .id = "PODHD400", + .name = "POD HD400", + .capabilities = LINE6_CAP_PCM + | LINE6_CAP_HWMON, + .altsetting = 5, + .ep_ctrl_r = 0x84, + .ep_ctrl_w = 0x03, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODHD500] = { + .id = "PODHD500", + .name = "POD HD500", + .capabilities = LINE6_CAP_PCM | LINE6_CAP_CONTROL + | LINE6_CAP_HWMON | LINE6_CAP_HWMON_CTL, + .altsetting = 1, + .ctrl_if = 1, + .ep_ctrl_r = 0x81, + .ep_ctrl_w = 0x01, + .ep_audio_r = 0x86, + .ep_audio_w = 0x02, + }, + [LINE6_PODX3] = { + .id = "PODX3", + .name = "POD X3", + .capabilities = LINE6_CAP_CONTROL | LINE6_CAP_CONTROL_INFO + | LINE6_CAP_PCM | LINE6_CAP_HWMON | LINE6_CAP_IN_NEEDS_OUT, + .altsetting = 1, + .ep_ctrl_r = 0x81, + .ep_ctrl_w = 0x01, + .ctrl_if = 1, + .ep_audio_r = 0x86, + .ep_audio_w = 0x02, + }, + [LINE6_PODX3LIVE] = { + .id = "PODX3LIVE", + .name = "POD X3 LIVE", + .capabilities = LINE6_CAP_CONTROL | LINE6_CAP_CONTROL_INFO + | LINE6_CAP_PCM | LINE6_CAP_HWMON | LINE6_CAP_IN_NEEDS_OUT, + .altsetting = 1, + .ep_ctrl_r = 0x81, + .ep_ctrl_w = 0x01, + .ctrl_if = 1, + .ep_audio_r = 0x86, + .ep_audio_w = 0x02, + }, + [LINE6_PODHD500X] = { + .id = "PODHD500X", + .name = "POD HD500X", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x81, + .ep_ctrl_w = 0x01, + .ctrl_if = 1, + .ep_audio_r = 0x86, + .ep_audio_w = 0x02, + }, + [LINE6_PODHDDESKTOP] = { + .id = "PODHDDESKTOP", + .name = "POD HDDESKTOP", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_PCM | LINE6_CAP_HWMON, + .altsetting = 1, + .ep_ctrl_r = 0x81, + .ep_ctrl_w = 0x01, + .ctrl_if = 1, + .ep_audio_r = 0x86, + .ep_audio_w = 0x02, + }, +}; + +/* + Probe USB device. +*/ +static int podhd_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + return line6_probe(interface, id, "Line6-PODHD", + &podhd_properties_table[id->driver_info], + podhd_init, sizeof(struct usb_line6_podhd)); +} + +static struct usb_driver podhd_driver = { + .name = KBUILD_MODNAME, + .probe = podhd_probe, + .disconnect = line6_disconnect, +#ifdef CONFIG_PM + .suspend = line6_suspend, + .resume = line6_resume, + .reset_resume = line6_resume, +#endif + .id_table = podhd_id_table, +}; + +module_usb_driver(podhd_driver); + +MODULE_DESCRIPTION("Line 6 PODHD USB driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/usb/line6/toneport.c b/sound/usb/line6/toneport.c new file mode 100644 index 000000000..e33df5874 --- /dev/null +++ b/sound/usb/line6/toneport.c @@ -0,0 +1,582 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + * Emil Myhrman (emil.myhrman@gmail.com) + */ + +#include <linux/wait.h> +#include <linux/usb.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/leds.h> +#include <sound/core.h> +#include <sound/control.h> + +#include "capture.h" +#include "driver.h" +#include "playback.h" + +enum line6_device_type { + LINE6_GUITARPORT, + LINE6_PODSTUDIO_GX, + LINE6_PODSTUDIO_UX1, + LINE6_PODSTUDIO_UX2, + LINE6_TONEPORT_GX, + LINE6_TONEPORT_UX1, + LINE6_TONEPORT_UX2, +}; + +struct usb_line6_toneport; + +struct toneport_led { + struct led_classdev dev; + char name[64]; + struct usb_line6_toneport *toneport; + bool registered; +}; + +struct usb_line6_toneport { + /* Generic Line 6 USB data */ + struct usb_line6 line6; + + /* Source selector */ + int source; + + /* Serial number of device */ + u32 serial_number; + + /* Firmware version (x 100) */ + u8 firmware_version; + + /* Device type */ + enum line6_device_type type; + + /* LED instances */ + struct toneport_led leds[2]; +}; + +#define line6_to_toneport(x) container_of(x, struct usb_line6_toneport, line6) + +static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2); + +#define TONEPORT_PCM_DELAY 1 + +static const struct snd_ratden toneport_ratden = { + .num_min = 44100, + .num_max = 44100, + .num_step = 1, + .den = 1 +}; + +static struct line6_pcm_properties toneport_pcm_properties = { + .playback_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = 44100, + .rate_max = 44100, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .capture_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_SYNC_START), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = 44100, + .rate_max = 44100, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 60000, + .period_bytes_min = 64, + .period_bytes_max = 8192, + .periods_min = 1, + .periods_max = 1024}, + .rates = { + .nrats = 1, + .rats = &toneport_ratden}, + .bytes_per_channel = 2 +}; + +static const struct { + const char *name; + int code; +} toneport_source_info[] = { + {"Microphone", 0x0a01}, + {"Line", 0x0801}, + {"Instrument", 0x0b01}, + {"Inst & Mic", 0x0901} +}; + +static int toneport_send_cmd(struct usb_device *usbdev, int cmd1, int cmd2) +{ + int ret; + + ret = usb_control_msg_send(usbdev, 0, 0x67, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, + cmd1, cmd2, NULL, 0, LINE6_TIMEOUT, + GFP_KERNEL); + + if (ret) { + dev_err(&usbdev->dev, "send failed (error %d)\n", ret); + return ret; + } + + return 0; +} + +/* monitor info callback */ +static int snd_toneport_monitor_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 256; + return 0; +} + +/* monitor get callback */ +static int snd_toneport_monitor_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] = line6pcm->volume_monitor; + return 0; +} + +/* monitor put callback */ +static int snd_toneport_monitor_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + int err; + + if (ucontrol->value.integer.value[0] == line6pcm->volume_monitor) + return 0; + + line6pcm->volume_monitor = ucontrol->value.integer.value[0]; + + if (line6pcm->volume_monitor > 0) { + err = line6_pcm_acquire(line6pcm, LINE6_STREAM_MONITOR, true); + if (err < 0) { + line6pcm->volume_monitor = 0; + line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR); + return err; + } + } else { + line6_pcm_release(line6pcm, LINE6_STREAM_MONITOR); + } + + return 1; +} + +/* source info callback */ +static int snd_toneport_source_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + const int size = ARRAY_SIZE(toneport_source_info); + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = size; + + if (uinfo->value.enumerated.item >= size) + uinfo->value.enumerated.item = size - 1; + + strcpy(uinfo->value.enumerated.name, + toneport_source_info[uinfo->value.enumerated.item].name); + + return 0; +} + +/* source get callback */ +static int snd_toneport_source_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_toneport *toneport = line6_to_toneport(line6pcm->line6); + + ucontrol->value.enumerated.item[0] = toneport->source; + return 0; +} + +/* source put callback */ +static int snd_toneport_source_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol); + struct usb_line6_toneport *toneport = line6_to_toneport(line6pcm->line6); + unsigned int source; + + source = ucontrol->value.enumerated.item[0]; + if (source >= ARRAY_SIZE(toneport_source_info)) + return -EINVAL; + if (source == toneport->source) + return 0; + + toneport->source = source; + toneport_send_cmd(toneport->line6.usbdev, + toneport_source_info[source].code, 0x0000); + return 1; +} + +static void toneport_startup(struct usb_line6 *line6) +{ + line6_pcm_acquire(line6->line6pcm, LINE6_STREAM_MONITOR, true); +} + +/* control definition */ +static const struct snd_kcontrol_new toneport_control_monitor = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Monitor Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_toneport_monitor_info, + .get = snd_toneport_monitor_get, + .put = snd_toneport_monitor_put +}; + +/* source selector definition */ +static const struct snd_kcontrol_new toneport_control_source = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Capture Source", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_toneport_source_info, + .get = snd_toneport_source_get, + .put = snd_toneport_source_put +}; + +/* + For the led on Guitarport. + Brightness goes from 0x00 to 0x26. Set a value above this to have led + blink. + (void cmd_0x02(byte red, byte green) +*/ + +static bool toneport_has_led(struct usb_line6_toneport *toneport) +{ + switch (toneport->type) { + case LINE6_GUITARPORT: + case LINE6_TONEPORT_GX: + /* add your device here if you are missing support for the LEDs */ + return true; + + default: + return false; + } +} + +static const char * const toneport_led_colors[2] = { "red", "green" }; +static const int toneport_led_init_vals[2] = { 0x00, 0x26 }; + +static void toneport_update_led(struct usb_line6_toneport *toneport) +{ + toneport_send_cmd(toneport->line6.usbdev, + (toneport->leds[0].dev.brightness << 8) | 0x0002, + toneport->leds[1].dev.brightness); +} + +static void toneport_led_brightness_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct toneport_led *leds = + container_of(led_cdev, struct toneport_led, dev); + toneport_update_led(leds->toneport); +} + +static int toneport_init_leds(struct usb_line6_toneport *toneport) +{ + struct device *dev = &toneport->line6.usbdev->dev; + int i, err; + + for (i = 0; i < 2; i++) { + struct toneport_led *led = &toneport->leds[i]; + struct led_classdev *leddev = &led->dev; + + led->toneport = toneport; + snprintf(led->name, sizeof(led->name), "%s::%s", + dev_name(dev), toneport_led_colors[i]); + leddev->name = led->name; + leddev->brightness = toneport_led_init_vals[i]; + leddev->max_brightness = 0x26; + leddev->brightness_set = toneport_led_brightness_set; + err = led_classdev_register(dev, leddev); + if (err) + return err; + led->registered = true; + } + + return 0; +} + +static void toneport_remove_leds(struct usb_line6_toneport *toneport) +{ + struct toneport_led *led; + int i; + + for (i = 0; i < 2; i++) { + led = &toneport->leds[i]; + if (!led->registered) + break; + led_classdev_unregister(&led->dev); + led->registered = false; + } +} + +static bool toneport_has_source_select(struct usb_line6_toneport *toneport) +{ + switch (toneport->type) { + case LINE6_TONEPORT_UX1: + case LINE6_TONEPORT_UX2: + case LINE6_PODSTUDIO_UX1: + case LINE6_PODSTUDIO_UX2: + return true; + + default: + return false; + } +} + +/* + Setup Toneport device. +*/ +static int toneport_setup(struct usb_line6_toneport *toneport) +{ + u32 *ticks; + struct usb_line6 *line6 = &toneport->line6; + struct usb_device *usbdev = line6->usbdev; + + ticks = kmalloc(sizeof(*ticks), GFP_KERNEL); + if (!ticks) + return -ENOMEM; + + /* sync time on device with host: */ + /* note: 32-bit timestamps overflow in year 2106 */ + *ticks = (u32)ktime_get_real_seconds(); + line6_write_data(line6, 0x80c6, ticks, 4); + kfree(ticks); + + /* enable device: */ + toneport_send_cmd(usbdev, 0x0301, 0x0000); + + /* initialize source select: */ + if (toneport_has_source_select(toneport)) + toneport_send_cmd(usbdev, + toneport_source_info[toneport->source].code, + 0x0000); + + if (toneport_has_led(toneport)) + toneport_update_led(toneport); + + schedule_delayed_work(&toneport->line6.startup_work, + msecs_to_jiffies(TONEPORT_PCM_DELAY * 1000)); + return 0; +} + +/* + Toneport device disconnected. +*/ +static void line6_toneport_disconnect(struct usb_line6 *line6) +{ + struct usb_line6_toneport *toneport = line6_to_toneport(line6); + + if (toneport_has_led(toneport)) + toneport_remove_leds(toneport); +} + + +/* + Try to init Toneport device. +*/ +static int toneport_init(struct usb_line6 *line6, + const struct usb_device_id *id) +{ + int err; + struct usb_line6_toneport *toneport = line6_to_toneport(line6); + + toneport->type = id->driver_info; + + line6->disconnect = line6_toneport_disconnect; + line6->startup = toneport_startup; + + /* initialize PCM subsystem: */ + err = line6_init_pcm(line6, &toneport_pcm_properties); + if (err < 0) + return err; + + /* register monitor control: */ + err = snd_ctl_add(line6->card, + snd_ctl_new1(&toneport_control_monitor, + line6->line6pcm)); + if (err < 0) + return err; + + /* register source select control: */ + if (toneport_has_source_select(toneport)) { + err = + snd_ctl_add(line6->card, + snd_ctl_new1(&toneport_control_source, + line6->line6pcm)); + if (err < 0) + return err; + } + + line6_read_serial_number(line6, &toneport->serial_number); + line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1); + + if (toneport_has_led(toneport)) { + err = toneport_init_leds(toneport); + if (err < 0) + return err; + } + + err = toneport_setup(toneport); + if (err) + return err; + + /* register audio system: */ + return snd_card_register(line6->card); +} + +#ifdef CONFIG_PM +/* + Resume Toneport device after reset. +*/ +static int toneport_reset_resume(struct usb_interface *interface) +{ + int err; + + err = toneport_setup(usb_get_intfdata(interface)); + if (err) + return err; + return line6_resume(interface); +} +#endif + +#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod) +#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n) + +/* table of devices that work with this driver */ +static const struct usb_device_id toneport_id_table[] = { + { LINE6_DEVICE(0x4750), .driver_info = LINE6_GUITARPORT }, + { LINE6_DEVICE(0x4153), .driver_info = LINE6_PODSTUDIO_GX }, + { LINE6_DEVICE(0x4150), .driver_info = LINE6_PODSTUDIO_UX1 }, + { LINE6_IF_NUM(0x4151, 0), .driver_info = LINE6_PODSTUDIO_UX2 }, + { LINE6_DEVICE(0x4147), .driver_info = LINE6_TONEPORT_GX }, + { LINE6_DEVICE(0x4141), .driver_info = LINE6_TONEPORT_UX1 }, + { LINE6_IF_NUM(0x4142, 0), .driver_info = LINE6_TONEPORT_UX2 }, + {} +}; + +MODULE_DEVICE_TABLE(usb, toneport_id_table); + +static const struct line6_properties toneport_properties_table[] = { + [LINE6_GUITARPORT] = { + .id = "GuitarPort", + .name = "GuitarPort", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODSTUDIO_GX] = { + .id = "PODStudioGX", + .name = "POD Studio GX", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODSTUDIO_UX1] = { + .id = "PODStudioUX1", + .name = "POD Studio UX1", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_PODSTUDIO_UX2] = { + .id = "PODStudioUX2", + .name = "POD Studio UX2", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* defaults to 44.1kHz, 16-bit */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_TONEPORT_GX] = { + .id = "TonePortGX", + .name = "TonePort GX", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_TONEPORT_UX1] = { + .id = "TonePortUX1", + .name = "TonePort UX1", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* 1..4 seem to be ok */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_TONEPORT_UX2] = { + .id = "TonePortUX2", + .name = "TonePort UX2", + .capabilities = LINE6_CAP_PCM, + .altsetting = 2, /* defaults to 44.1kHz, 16-bit */ + /* no control channel */ + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, +}; + +/* + Probe USB device. +*/ +static int toneport_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + return line6_probe(interface, id, "Line6-TonePort", + &toneport_properties_table[id->driver_info], + toneport_init, sizeof(struct usb_line6_toneport)); +} + +static struct usb_driver toneport_driver = { + .name = KBUILD_MODNAME, + .probe = toneport_probe, + .disconnect = line6_disconnect, +#ifdef CONFIG_PM + .suspend = line6_suspend, + .resume = line6_resume, + .reset_resume = toneport_reset_resume, +#endif + .id_table = toneport_id_table, +}; + +module_usb_driver(toneport_driver); + +MODULE_DESCRIPTION("TonePort USB driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/usb/line6/variax.c b/sound/usb/line6/variax.c new file mode 100644 index 000000000..c2245aa93 --- /dev/null +++ b/sound/usb/line6/variax.c @@ -0,0 +1,242 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Line 6 Linux USB driver + * + * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) + */ + +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/usb.h> +#include <linux/wait.h> +#include <linux/module.h> +#include <sound/core.h> + +#include "driver.h" + +#define VARIAX_STARTUP_DELAY1 1000 +#define VARIAX_STARTUP_DELAY3 100 +#define VARIAX_STARTUP_DELAY4 100 + +/* + Stages of Variax startup procedure +*/ +enum { + VARIAX_STARTUP_VERSIONREQ, + VARIAX_STARTUP_ACTIVATE, + VARIAX_STARTUP_SETUP, +}; + +enum { + LINE6_PODXTLIVE_VARIAX, + LINE6_VARIAX +}; + +struct usb_line6_variax { + /* Generic Line 6 USB data */ + struct usb_line6 line6; + + /* Buffer for activation code */ + unsigned char *buffer_activate; + + /* Current progress in startup procedure */ + int startup_progress; +}; + +#define line6_to_variax(x) container_of(x, struct usb_line6_variax, line6) + +#define VARIAX_OFFSET_ACTIVATE 7 + +/* + This message is sent by the device during initialization and identifies + the connected guitar version. +*/ +static const char variax_init_version[] = { + 0xf0, 0x7e, 0x7f, 0x06, 0x02, 0x00, 0x01, 0x0c, + 0x07, 0x00, 0x00, 0x00 +}; + +/* + This message is the last one sent by the device during initialization. +*/ +static const char variax_init_done[] = { + 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x6b +}; + +static const char variax_activate[] = { + 0xf0, 0x00, 0x01, 0x0c, 0x07, 0x00, 0x2a, 0x01, + 0xf7 +}; + +static void variax_activate_async(struct usb_line6_variax *variax, int a) +{ + variax->buffer_activate[VARIAX_OFFSET_ACTIVATE] = a; + line6_send_raw_message_async(&variax->line6, variax->buffer_activate, + sizeof(variax_activate)); +} + +/* + Variax startup procedure. + This is a sequence of functions with special requirements (e.g., must + not run immediately after initialization, must not run in interrupt + context). After the last one has finished, the device is ready to use. +*/ + +static void variax_startup(struct usb_line6 *line6) +{ + struct usb_line6_variax *variax = line6_to_variax(line6); + + switch (variax->startup_progress) { + case VARIAX_STARTUP_VERSIONREQ: + /* repeat request until getting the response */ + schedule_delayed_work(&line6->startup_work, + msecs_to_jiffies(VARIAX_STARTUP_DELAY1)); + /* request firmware version: */ + line6_version_request_async(line6); + break; + case VARIAX_STARTUP_ACTIVATE: + /* activate device: */ + variax_activate_async(variax, 1); + variax->startup_progress = VARIAX_STARTUP_SETUP; + schedule_delayed_work(&line6->startup_work, + msecs_to_jiffies(VARIAX_STARTUP_DELAY4)); + break; + case VARIAX_STARTUP_SETUP: + /* ALSA audio interface: */ + snd_card_register(variax->line6.card); + break; + } +} + +/* + Process a completely received message. +*/ +static void line6_variax_process_message(struct usb_line6 *line6) +{ + struct usb_line6_variax *variax = line6_to_variax(line6); + const unsigned char *buf = variax->line6.buffer_message; + + switch (buf[0]) { + case LINE6_RESET: + dev_info(variax->line6.ifcdev, "VARIAX reset\n"); + break; + + case LINE6_SYSEX_BEGIN: + if (memcmp(buf + 1, variax_init_version + 1, + sizeof(variax_init_version) - 1) == 0) { + if (variax->startup_progress >= VARIAX_STARTUP_ACTIVATE) + break; + variax->startup_progress = VARIAX_STARTUP_ACTIVATE; + cancel_delayed_work(&line6->startup_work); + schedule_delayed_work(&line6->startup_work, + msecs_to_jiffies(VARIAX_STARTUP_DELAY3)); + } else if (memcmp(buf + 1, variax_init_done + 1, + sizeof(variax_init_done) - 1) == 0) { + /* notify of complete initialization: */ + if (variax->startup_progress >= VARIAX_STARTUP_SETUP) + break; + cancel_delayed_work(&line6->startup_work); + schedule_delayed_work(&line6->startup_work, 0); + } + break; + } +} + +/* + Variax destructor. +*/ +static void line6_variax_disconnect(struct usb_line6 *line6) +{ + struct usb_line6_variax *variax = line6_to_variax(line6); + + kfree(variax->buffer_activate); +} + +/* + Try to init workbench device. +*/ +static int variax_init(struct usb_line6 *line6, + const struct usb_device_id *id) +{ + struct usb_line6_variax *variax = line6_to_variax(line6); + + line6->process_message = line6_variax_process_message; + line6->disconnect = line6_variax_disconnect; + line6->startup = variax_startup; + + /* initialize USB buffers: */ + variax->buffer_activate = kmemdup(variax_activate, + sizeof(variax_activate), GFP_KERNEL); + + if (variax->buffer_activate == NULL) + return -ENOMEM; + + /* initiate startup procedure: */ + schedule_delayed_work(&line6->startup_work, + msecs_to_jiffies(VARIAX_STARTUP_DELAY1)); + return 0; +} + +#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod) +#define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n) + +/* table of devices that work with this driver */ +static const struct usb_device_id variax_id_table[] = { + { LINE6_IF_NUM(0x4650, 1), .driver_info = LINE6_PODXTLIVE_VARIAX }, + { LINE6_DEVICE(0x534d), .driver_info = LINE6_VARIAX }, + {} +}; + +MODULE_DEVICE_TABLE(usb, variax_id_table); + +static const struct line6_properties variax_properties_table[] = { + [LINE6_PODXTLIVE_VARIAX] = { + .id = "PODxtLive", + .name = "PODxt Live", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI, + .altsetting = 1, + .ep_ctrl_r = 0x86, + .ep_ctrl_w = 0x05, + .ep_audio_r = 0x82, + .ep_audio_w = 0x01, + }, + [LINE6_VARIAX] = { + .id = "Variax", + .name = "Variax Workbench", + .capabilities = LINE6_CAP_CONTROL + | LINE6_CAP_CONTROL_MIDI, + .altsetting = 1, + .ep_ctrl_r = 0x82, + .ep_ctrl_w = 0x01, + /* no audio channel */ + } +}; + +/* + Probe USB device. +*/ +static int variax_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + return line6_probe(interface, id, "Line6-Variax", + &variax_properties_table[id->driver_info], + variax_init, sizeof(struct usb_line6_variax)); +} + +static struct usb_driver variax_driver = { + .name = KBUILD_MODNAME, + .probe = variax_probe, + .disconnect = line6_disconnect, +#ifdef CONFIG_PM + .suspend = line6_suspend, + .resume = line6_resume, + .reset_resume = line6_resume, +#endif + .id_table = variax_id_table, +}; + +module_usb_driver(variax_driver); + +MODULE_DESCRIPTION("Variax Workbench USB driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/usb/media.c b/sound/usb/media.c new file mode 100644 index 000000000..840f42cb9 --- /dev/null +++ b/sound/usb/media.c @@ -0,0 +1,327 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * media.c - Media Controller specific ALSA driver code + * + * Copyright (c) 2019 Shuah Khan <shuah@kernel.org> + * + */ + +/* + * This file adds Media Controller support to the ALSA driver + * to use the Media Controller API to share the tuner with DVB + * and V4L2 drivers that control the media device. + * + * The media device is created based on the existing quirks framework. + * Using this approach, the media controller API usage can be added for + * a specific device. + */ + +#include <linux/init.h> +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/usb.h> + +#include <sound/pcm.h> +#include <sound/core.h> + +#include "usbaudio.h" +#include "card.h" +#include "mixer.h" +#include "media.h" + +int snd_media_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, + int stream) +{ + struct media_device *mdev; + struct media_ctl *mctl; + struct device *pcm_dev = &pcm->streams[stream].dev; + u32 intf_type; + int ret = 0; + u16 mixer_pad; + struct media_entity *entity; + + mdev = subs->stream->chip->media_dev; + if (!mdev) + return 0; + + if (subs->media_ctl) + return 0; + + /* allocate media_ctl */ + mctl = kzalloc(sizeof(*mctl), GFP_KERNEL); + if (!mctl) + return -ENOMEM; + + mctl->media_dev = mdev; + if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + intf_type = MEDIA_INTF_T_ALSA_PCM_PLAYBACK; + mctl->media_entity.function = MEDIA_ENT_F_AUDIO_PLAYBACK; + mctl->media_pad.flags = MEDIA_PAD_FL_SOURCE; + mixer_pad = 1; + } else { + intf_type = MEDIA_INTF_T_ALSA_PCM_CAPTURE; + mctl->media_entity.function = MEDIA_ENT_F_AUDIO_CAPTURE; + mctl->media_pad.flags = MEDIA_PAD_FL_SINK; + mixer_pad = 2; + } + mctl->media_entity.name = pcm->name; + media_entity_pads_init(&mctl->media_entity, 1, &mctl->media_pad); + ret = media_device_register_entity(mctl->media_dev, + &mctl->media_entity); + if (ret) + goto free_mctl; + + mctl->intf_devnode = media_devnode_create(mdev, intf_type, 0, + MAJOR(pcm_dev->devt), + MINOR(pcm_dev->devt)); + if (!mctl->intf_devnode) { + ret = -ENOMEM; + goto unregister_entity; + } + mctl->intf_link = media_create_intf_link(&mctl->media_entity, + &mctl->intf_devnode->intf, + MEDIA_LNK_FL_ENABLED); + if (!mctl->intf_link) { + ret = -ENOMEM; + goto devnode_remove; + } + + /* create link between mixer and audio */ + media_device_for_each_entity(entity, mdev) { + switch (entity->function) { + case MEDIA_ENT_F_AUDIO_MIXER: + ret = media_create_pad_link(entity, mixer_pad, + &mctl->media_entity, 0, + MEDIA_LNK_FL_ENABLED); + if (ret) + goto remove_intf_link; + break; + } + } + + subs->media_ctl = mctl; + return 0; + +remove_intf_link: + media_remove_intf_link(mctl->intf_link); +devnode_remove: + media_devnode_remove(mctl->intf_devnode); +unregister_entity: + media_device_unregister_entity(&mctl->media_entity); +free_mctl: + kfree(mctl); + return ret; +} + +void snd_media_stream_delete(struct snd_usb_substream *subs) +{ + struct media_ctl *mctl = subs->media_ctl; + + if (mctl) { + struct media_device *mdev; + + mdev = mctl->media_dev; + if (mdev && media_devnode_is_registered(mdev->devnode)) { + media_devnode_remove(mctl->intf_devnode); + media_device_unregister_entity(&mctl->media_entity); + media_entity_cleanup(&mctl->media_entity); + } + kfree(mctl); + subs->media_ctl = NULL; + } +} + +int snd_media_start_pipeline(struct snd_usb_substream *subs) +{ + struct media_ctl *mctl = subs->media_ctl; + int ret = 0; + + if (!mctl) + return 0; + + mutex_lock(&mctl->media_dev->graph_mutex); + if (mctl->media_dev->enable_source) + ret = mctl->media_dev->enable_source(&mctl->media_entity, + &mctl->media_pipe); + mutex_unlock(&mctl->media_dev->graph_mutex); + return ret; +} + +void snd_media_stop_pipeline(struct snd_usb_substream *subs) +{ + struct media_ctl *mctl = subs->media_ctl; + + if (!mctl) + return; + + mutex_lock(&mctl->media_dev->graph_mutex); + if (mctl->media_dev->disable_source) + mctl->media_dev->disable_source(&mctl->media_entity); + mutex_unlock(&mctl->media_dev->graph_mutex); +} + +static int snd_media_mixer_init(struct snd_usb_audio *chip) +{ + struct device *ctl_dev = &chip->card->ctl_dev; + struct media_intf_devnode *ctl_intf; + struct usb_mixer_interface *mixer; + struct media_device *mdev = chip->media_dev; + struct media_mixer_ctl *mctl; + u32 intf_type = MEDIA_INTF_T_ALSA_CONTROL; + int ret; + + if (!mdev) + return -ENODEV; + + ctl_intf = chip->ctl_intf_media_devnode; + if (!ctl_intf) { + ctl_intf = media_devnode_create(mdev, intf_type, 0, + MAJOR(ctl_dev->devt), + MINOR(ctl_dev->devt)); + if (!ctl_intf) + return -ENOMEM; + chip->ctl_intf_media_devnode = ctl_intf; + } + + list_for_each_entry(mixer, &chip->mixer_list, list) { + + if (mixer->media_mixer_ctl) + continue; + + /* allocate media_mixer_ctl */ + mctl = kzalloc(sizeof(*mctl), GFP_KERNEL); + if (!mctl) + return -ENOMEM; + + mctl->media_dev = mdev; + mctl->media_entity.function = MEDIA_ENT_F_AUDIO_MIXER; + mctl->media_entity.name = chip->card->mixername; + mctl->media_pad[0].flags = MEDIA_PAD_FL_SINK; + mctl->media_pad[1].flags = MEDIA_PAD_FL_SOURCE; + mctl->media_pad[2].flags = MEDIA_PAD_FL_SOURCE; + media_entity_pads_init(&mctl->media_entity, MEDIA_MIXER_PAD_MAX, + mctl->media_pad); + ret = media_device_register_entity(mctl->media_dev, + &mctl->media_entity); + if (ret) { + kfree(mctl); + return ret; + } + + mctl->intf_link = media_create_intf_link(&mctl->media_entity, + &ctl_intf->intf, + MEDIA_LNK_FL_ENABLED); + if (!mctl->intf_link) { + media_device_unregister_entity(&mctl->media_entity); + media_entity_cleanup(&mctl->media_entity); + kfree(mctl); + return -ENOMEM; + } + mctl->intf_devnode = ctl_intf; + mixer->media_mixer_ctl = mctl; + } + return 0; +} + +static void snd_media_mixer_delete(struct snd_usb_audio *chip) +{ + struct usb_mixer_interface *mixer; + struct media_device *mdev = chip->media_dev; + + if (!mdev) + return; + + list_for_each_entry(mixer, &chip->mixer_list, list) { + struct media_mixer_ctl *mctl; + + mctl = mixer->media_mixer_ctl; + if (!mixer->media_mixer_ctl) + continue; + + if (media_devnode_is_registered(mdev->devnode)) { + media_device_unregister_entity(&mctl->media_entity); + media_entity_cleanup(&mctl->media_entity); + } + kfree(mctl); + mixer->media_mixer_ctl = NULL; + } + if (media_devnode_is_registered(mdev->devnode)) + media_devnode_remove(chip->ctl_intf_media_devnode); + chip->ctl_intf_media_devnode = NULL; +} + +int snd_media_device_create(struct snd_usb_audio *chip, + struct usb_interface *iface) +{ + struct media_device *mdev; + struct usb_device *usbdev = interface_to_usbdev(iface); + int ret = 0; + + /* usb-audio driver is probed for each usb interface, and + * there are multiple interfaces per device. Avoid calling + * media_device_usb_allocate() each time usb_audio_probe() + * is called. Do it only once. + */ + if (chip->media_dev) { + mdev = chip->media_dev; + goto snd_mixer_init; + } + + mdev = media_device_usb_allocate(usbdev, KBUILD_MODNAME, THIS_MODULE); + if (IS_ERR(mdev)) + return -ENOMEM; + + /* save media device - avoid lookups */ + chip->media_dev = mdev; + +snd_mixer_init: + /* Create media entities for mixer and control dev */ + ret = snd_media_mixer_init(chip); + /* media_device might be registered, print error and continue */ + if (ret) + dev_err(&usbdev->dev, + "Couldn't create media mixer entities. Error: %d\n", + ret); + + if (!media_devnode_is_registered(mdev->devnode)) { + /* don't register if snd_media_mixer_init() failed */ + if (ret) + goto create_fail; + + /* register media_device */ + ret = media_device_register(mdev); +create_fail: + if (ret) { + snd_media_mixer_delete(chip); + media_device_delete(mdev, KBUILD_MODNAME, THIS_MODULE); + /* clear saved media_dev */ + chip->media_dev = NULL; + dev_err(&usbdev->dev, + "Couldn't register media device. Error: %d\n", + ret); + return ret; + } + } + + return ret; +} + +void snd_media_device_delete(struct snd_usb_audio *chip) +{ + struct media_device *mdev = chip->media_dev; + struct snd_usb_stream *stream; + + /* release resources */ + list_for_each_entry(stream, &chip->pcm_list, list) { + snd_media_stream_delete(&stream->substream[0]); + snd_media_stream_delete(&stream->substream[1]); + } + + snd_media_mixer_delete(chip); + + if (mdev) { + media_device_delete(mdev, KBUILD_MODNAME, THIS_MODULE); + chip->media_dev = NULL; + } +} diff --git a/sound/usb/media.h b/sound/usb/media.h new file mode 100644 index 000000000..f5bdec1d6 --- /dev/null +++ b/sound/usb/media.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * media.h - Media Controller specific ALSA driver code + * + * Copyright (c) 2019 Shuah Khan <shuah@kernel.org> + * + */ + +/* + * This file adds Media Controller support to the ALSA driver + * to use the Media Controller API to share the tuner with DVB + * and V4L2 drivers that control the media device. + * + * The media device is created based on the existing quirks framework. + * Using this approach, the media controller API usage can be added for + * a specific device. + */ +#ifndef __MEDIA_H + +#ifdef CONFIG_SND_USB_AUDIO_USE_MEDIA_CONTROLLER + +#include <linux/media.h> +#include <media/media-device.h> +#include <media/media-entity.h> +#include <media/media-dev-allocator.h> +#include <sound/asound.h> + +struct media_ctl { + struct media_device *media_dev; + struct media_entity media_entity; + struct media_intf_devnode *intf_devnode; + struct media_link *intf_link; + struct media_pad media_pad; + struct media_pipeline media_pipe; +}; + +/* + * One source pad each for SNDRV_PCM_STREAM_CAPTURE and + * SNDRV_PCM_STREAM_PLAYBACK. One for sink pad to link + * to AUDIO Source + */ +#define MEDIA_MIXER_PAD_MAX (SNDRV_PCM_STREAM_LAST + 2) + +struct media_mixer_ctl { + struct media_device *media_dev; + struct media_entity media_entity; + struct media_intf_devnode *intf_devnode; + struct media_link *intf_link; + struct media_pad media_pad[MEDIA_MIXER_PAD_MAX]; + struct media_pipeline media_pipe; +}; + +int snd_media_device_create(struct snd_usb_audio *chip, + struct usb_interface *iface); +void snd_media_device_delete(struct snd_usb_audio *chip); +int snd_media_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, + int stream); +void snd_media_stream_delete(struct snd_usb_substream *subs); +int snd_media_start_pipeline(struct snd_usb_substream *subs); +void snd_media_stop_pipeline(struct snd_usb_substream *subs); +#else +static inline int snd_media_device_create(struct snd_usb_audio *chip, + struct usb_interface *iface) + { return 0; } +static inline void snd_media_device_delete(struct snd_usb_audio *chip) { } +static inline int snd_media_stream_init(struct snd_usb_substream *subs, + struct snd_pcm *pcm, int stream) + { return 0; } +static inline void snd_media_stream_delete(struct snd_usb_substream *subs) { } +static inline int snd_media_start_pipeline(struct snd_usb_substream *subs) + { return 0; } +static inline void snd_media_stop_pipeline(struct snd_usb_substream *subs) { } +#endif +#endif /* __MEDIA_H */ diff --git a/sound/usb/midi.c b/sound/usb/midi.c new file mode 100644 index 000000000..2839f6b6f --- /dev/null +++ b/sound/usb/midi.c @@ -0,0 +1,2605 @@ +/* + * usbmidi.c - ALSA USB MIDI driver + * + * Copyright (c) 2002-2009 Clemens Ladisch + * All rights reserved. + * + * Based on the OSS usb-midi driver by NAGANO Daisuke, + * NetBSD's umidi driver by Takuya SHIOZAKI, + * the "USB Device Class Definition for MIDI Devices" by Roland + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Alternatively, this software may be distributed and/or modified under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/bitops.h> +#include <linux/interrupt.h> +#include <linux/spinlock.h> +#include <linux/string.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/timer.h> +#include <linux/usb.h> +#include <linux/wait.h> +#include <linux/usb/audio.h> +#include <linux/usb/midi.h> +#include <linux/module.h> + +#include <sound/core.h> +#include <sound/control.h> +#include <sound/rawmidi.h> +#include <sound/asequencer.h> +#include "usbaudio.h" +#include "midi.h" +#include "power.h" +#include "helper.h" + +/* + * define this to log all USB packets + */ +/* #define DUMP_PACKETS */ + +/* + * how long to wait after some USB errors, so that hub_wq can disconnect() us + * without too many spurious errors + */ +#define ERROR_DELAY_JIFFIES (HZ / 10) + +#define OUTPUT_URBS 7 +#define INPUT_URBS 7 + + +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_DESCRIPTION("USB Audio/MIDI helper module"); +MODULE_LICENSE("Dual BSD/GPL"); + +struct snd_usb_midi_in_endpoint; +struct snd_usb_midi_out_endpoint; +struct snd_usb_midi_endpoint; + +struct usb_protocol_ops { + void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int); + void (*output)(struct snd_usb_midi_out_endpoint *ep, struct urb *urb); + void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t); + void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint *); + void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint *); +}; + +struct snd_usb_midi { + struct usb_device *dev; + struct snd_card *card; + struct usb_interface *iface; + const struct snd_usb_audio_quirk *quirk; + struct snd_rawmidi *rmidi; + const struct usb_protocol_ops *usb_protocol_ops; + struct list_head list; + struct timer_list error_timer; + spinlock_t disc_lock; + struct rw_semaphore disc_rwsem; + struct mutex mutex; + u32 usb_id; + int next_midi_device; + + struct snd_usb_midi_endpoint { + struct snd_usb_midi_out_endpoint *out; + struct snd_usb_midi_in_endpoint *in; + } endpoints[MIDI_MAX_ENDPOINTS]; + unsigned long input_triggered; + unsigned int opened[2]; + unsigned char disconnected; + unsigned char input_running; + + struct snd_kcontrol *roland_load_ctl; +}; + +struct snd_usb_midi_out_endpoint { + struct snd_usb_midi *umidi; + struct out_urb_context { + struct urb *urb; + struct snd_usb_midi_out_endpoint *ep; + } urbs[OUTPUT_URBS]; + unsigned int active_urbs; + unsigned int drain_urbs; + int max_transfer; /* size of urb buffer */ + struct work_struct work; + unsigned int next_urb; + spinlock_t buffer_lock; + + struct usbmidi_out_port { + struct snd_usb_midi_out_endpoint *ep; + struct snd_rawmidi_substream *substream; + int active; + uint8_t cable; /* cable number << 4 */ + uint8_t state; +#define STATE_UNKNOWN 0 +#define STATE_1PARAM 1 +#define STATE_2PARAM_1 2 +#define STATE_2PARAM_2 3 +#define STATE_SYSEX_0 4 +#define STATE_SYSEX_1 5 +#define STATE_SYSEX_2 6 + uint8_t data[2]; + } ports[0x10]; + int current_port; + + wait_queue_head_t drain_wait; +}; + +struct snd_usb_midi_in_endpoint { + struct snd_usb_midi *umidi; + struct urb *urbs[INPUT_URBS]; + struct usbmidi_in_port { + struct snd_rawmidi_substream *substream; + u8 running_status_length; + } ports[0x10]; + u8 seen_f5; + bool in_sysex; + u8 last_cin; + u8 error_resubmit; + int current_port; +}; + +static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep); + +static const uint8_t snd_usbmidi_cin_length[] = { + 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1 +}; + +/* + * Submits the URB, with error handling. + */ +static int snd_usbmidi_submit_urb(struct urb *urb, gfp_t flags) +{ + int err = usb_submit_urb(urb, flags); + if (err < 0 && err != -ENODEV) + dev_err(&urb->dev->dev, "usb_submit_urb: %d\n", err); + return err; +} + +/* + * Error handling for URB completion functions. + */ +static int snd_usbmidi_urb_error(const struct urb *urb) +{ + switch (urb->status) { + /* manually unlinked, or device gone */ + case -ENOENT: + case -ECONNRESET: + case -ESHUTDOWN: + case -ENODEV: + return -ENODEV; + /* errors that might occur during unplugging */ + case -EPROTO: + case -ETIME: + case -EILSEQ: + return -EIO; + default: + dev_err(&urb->dev->dev, "urb status %d\n", urb->status); + return 0; /* continue */ + } +} + +/* + * Receives a chunk of MIDI data. + */ +static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint *ep, + int portidx, uint8_t *data, int length) +{ + struct usbmidi_in_port *port = &ep->ports[portidx]; + + if (!port->substream) { + dev_dbg(&ep->umidi->dev->dev, "unexpected port %d!\n", portidx); + return; + } + if (!test_bit(port->substream->number, &ep->umidi->input_triggered)) + return; + snd_rawmidi_receive(port->substream, data, length); +} + +#ifdef DUMP_PACKETS +static void dump_urb(const char *type, const u8 *data, int length) +{ + snd_printk(KERN_DEBUG "%s packet: [", type); + for (; length > 0; ++data, --length) + printk(KERN_CONT " %02x", *data); + printk(KERN_CONT " ]\n"); +} +#else +#define dump_urb(type, data, length) /* nothing */ +#endif + +/* + * Processes the data read from the device. + */ +static void snd_usbmidi_in_urb_complete(struct urb *urb) +{ + struct snd_usb_midi_in_endpoint *ep = urb->context; + + if (urb->status == 0) { + dump_urb("received", urb->transfer_buffer, urb->actual_length); + ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer, + urb->actual_length); + } else { + int err = snd_usbmidi_urb_error(urb); + if (err < 0) { + if (err != -ENODEV) { + ep->error_resubmit = 1; + mod_timer(&ep->umidi->error_timer, + jiffies + ERROR_DELAY_JIFFIES); + } + return; + } + } + + urb->dev = ep->umidi->dev; + snd_usbmidi_submit_urb(urb, GFP_ATOMIC); +} + +static void snd_usbmidi_out_urb_complete(struct urb *urb) +{ + struct out_urb_context *context = urb->context; + struct snd_usb_midi_out_endpoint *ep = context->ep; + unsigned int urb_index; + unsigned long flags; + + spin_lock_irqsave(&ep->buffer_lock, flags); + urb_index = context - ep->urbs; + ep->active_urbs &= ~(1 << urb_index); + if (unlikely(ep->drain_urbs)) { + ep->drain_urbs &= ~(1 << urb_index); + wake_up(&ep->drain_wait); + } + spin_unlock_irqrestore(&ep->buffer_lock, flags); + if (urb->status < 0) { + int err = snd_usbmidi_urb_error(urb); + if (err < 0) { + if (err != -ENODEV) + mod_timer(&ep->umidi->error_timer, + jiffies + ERROR_DELAY_JIFFIES); + return; + } + } + snd_usbmidi_do_output(ep); +} + +/* + * This is called when some data should be transferred to the device + * (from one or more substreams). + */ +static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint *ep) +{ + unsigned int urb_index; + struct urb *urb; + unsigned long flags; + + spin_lock_irqsave(&ep->buffer_lock, flags); + if (ep->umidi->disconnected) { + spin_unlock_irqrestore(&ep->buffer_lock, flags); + return; + } + + urb_index = ep->next_urb; + for (;;) { + if (!(ep->active_urbs & (1 << urb_index))) { + urb = ep->urbs[urb_index].urb; + urb->transfer_buffer_length = 0; + ep->umidi->usb_protocol_ops->output(ep, urb); + if (urb->transfer_buffer_length == 0) + break; + + dump_urb("sending", urb->transfer_buffer, + urb->transfer_buffer_length); + urb->dev = ep->umidi->dev; + if (snd_usbmidi_submit_urb(urb, GFP_ATOMIC) < 0) + break; + ep->active_urbs |= 1 << urb_index; + } + if (++urb_index >= OUTPUT_URBS) + urb_index = 0; + if (urb_index == ep->next_urb) + break; + } + ep->next_urb = urb_index; + spin_unlock_irqrestore(&ep->buffer_lock, flags); +} + +static void snd_usbmidi_out_work(struct work_struct *work) +{ + struct snd_usb_midi_out_endpoint *ep = + container_of(work, struct snd_usb_midi_out_endpoint, work); + + snd_usbmidi_do_output(ep); +} + +/* called after transfers had been interrupted due to some USB error */ +static void snd_usbmidi_error_timer(struct timer_list *t) +{ + struct snd_usb_midi *umidi = from_timer(umidi, t, error_timer); + unsigned int i, j; + + spin_lock(&umidi->disc_lock); + if (umidi->disconnected) { + spin_unlock(&umidi->disc_lock); + return; + } + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { + struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in; + if (in && in->error_resubmit) { + in->error_resubmit = 0; + for (j = 0; j < INPUT_URBS; ++j) { + if (atomic_read(&in->urbs[j]->use_count)) + continue; + in->urbs[j]->dev = umidi->dev; + snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC); + } + } + if (umidi->endpoints[i].out) + snd_usbmidi_do_output(umidi->endpoints[i].out); + } + spin_unlock(&umidi->disc_lock); +} + +/* helper function to send static data that may not DMA-able */ +static int send_bulk_static_data(struct snd_usb_midi_out_endpoint *ep, + const void *data, int len) +{ + int err = 0; + void *buf = kmemdup(data, len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + dump_urb("sending", buf, len); + if (ep->urbs[0].urb) + err = usb_bulk_msg(ep->umidi->dev, ep->urbs[0].urb->pipe, + buf, len, NULL, 250); + kfree(buf); + return err; +} + +/* + * Standard USB MIDI protocol: see the spec. + * Midiman protocol: like the standard protocol, but the control byte is the + * fourth byte in each packet, and uses length instead of CIN. + */ + +static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + int i; + + for (i = 0; i + 3 < buffer_length; i += 4) + if (buffer[i] != 0) { + int cable = buffer[i] >> 4; + int length = snd_usbmidi_cin_length[buffer[i] & 0x0f]; + snd_usbmidi_input_data(ep, cable, &buffer[i + 1], + length); + } +} + +static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + int i; + + for (i = 0; i + 3 < buffer_length; i += 4) + if (buffer[i + 3] != 0) { + int port = buffer[i + 3] >> 4; + int length = buffer[i + 3] & 3; + snd_usbmidi_input_data(ep, port, &buffer[i], length); + } +} + +/* + * Buggy M-Audio device: running status on input results in a packet that has + * the data bytes but not the status byte and that is marked with CIN 4. + */ +static void snd_usbmidi_maudio_broken_running_status_input( + struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + int i; + + for (i = 0; i + 3 < buffer_length; i += 4) + if (buffer[i] != 0) { + int cable = buffer[i] >> 4; + u8 cin = buffer[i] & 0x0f; + struct usbmidi_in_port *port = &ep->ports[cable]; + int length; + + length = snd_usbmidi_cin_length[cin]; + if (cin == 0xf && buffer[i + 1] >= 0xf8) + ; /* realtime msg: no running status change */ + else if (cin >= 0x8 && cin <= 0xe) + /* channel msg */ + port->running_status_length = length - 1; + else if (cin == 0x4 && + port->running_status_length != 0 && + buffer[i + 1] < 0x80) + /* CIN 4 that is not a SysEx */ + length = port->running_status_length; + else + /* + * All other msgs cannot begin running status. + * (A channel msg sent as two or three CIN 0xF + * packets could in theory, but this device + * doesn't use this format.) + */ + port->running_status_length = 0; + snd_usbmidi_input_data(ep, cable, &buffer[i + 1], + length); + } +} + +/* + * QinHeng CH345 is buggy: every second packet inside a SysEx has not CIN 4 + * but the previously seen CIN, but still with three data bytes. + */ +static void ch345_broken_sysex_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + unsigned int i, cin, length; + + for (i = 0; i + 3 < buffer_length; i += 4) { + if (buffer[i] == 0 && i > 0) + break; + cin = buffer[i] & 0x0f; + if (ep->in_sysex && + cin == ep->last_cin && + (buffer[i + 1 + (cin == 0x6)] & 0x80) == 0) + cin = 0x4; +#if 0 + if (buffer[i + 1] == 0x90) { + /* + * Either a corrupted running status or a real note-on + * message; impossible to detect reliably. + */ + } +#endif + length = snd_usbmidi_cin_length[cin]; + snd_usbmidi_input_data(ep, 0, &buffer[i + 1], length); + ep->in_sysex = cin == 0x4; + if (!ep->in_sysex) + ep->last_cin = cin; + } +} + +/* + * CME protocol: like the standard protocol, but SysEx commands are sent as a + * single USB packet preceded by a 0x0F byte. + */ +static void snd_usbmidi_cme_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + if (buffer_length < 2 || (buffer[0] & 0x0f) != 0x0f) + snd_usbmidi_standard_input(ep, buffer, buffer_length); + else + snd_usbmidi_input_data(ep, buffer[0] >> 4, + &buffer[1], buffer_length - 1); +} + +/* + * Adds one USB MIDI packet to the output buffer. + */ +static void snd_usbmidi_output_standard_packet(struct urb *urb, uint8_t p0, + uint8_t p1, uint8_t p2, + uint8_t p3) +{ + + uint8_t *buf = + (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; + buf[0] = p0; + buf[1] = p1; + buf[2] = p2; + buf[3] = p3; + urb->transfer_buffer_length += 4; +} + +/* + * Adds one Midiman packet to the output buffer. + */ +static void snd_usbmidi_output_midiman_packet(struct urb *urb, uint8_t p0, + uint8_t p1, uint8_t p2, + uint8_t p3) +{ + + uint8_t *buf = + (uint8_t *)urb->transfer_buffer + urb->transfer_buffer_length; + buf[0] = p1; + buf[1] = p2; + buf[2] = p3; + buf[3] = (p0 & 0xf0) | snd_usbmidi_cin_length[p0 & 0x0f]; + urb->transfer_buffer_length += 4; +} + +/* + * Converts MIDI commands to USB MIDI packets. + */ +static void snd_usbmidi_transmit_byte(struct usbmidi_out_port *port, + uint8_t b, struct urb *urb) +{ + uint8_t p0 = port->cable; + void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t) = + port->ep->umidi->usb_protocol_ops->output_packet; + + if (b >= 0xf8) { + output_packet(urb, p0 | 0x0f, b, 0, 0); + } else if (b >= 0xf0) { + switch (b) { + case 0xf0: + port->data[0] = b; + port->state = STATE_SYSEX_1; + break; + case 0xf1: + case 0xf3: + port->data[0] = b; + port->state = STATE_1PARAM; + break; + case 0xf2: + port->data[0] = b; + port->state = STATE_2PARAM_1; + break; + case 0xf4: + case 0xf5: + port->state = STATE_UNKNOWN; + break; + case 0xf6: + output_packet(urb, p0 | 0x05, 0xf6, 0, 0); + port->state = STATE_UNKNOWN; + break; + case 0xf7: + switch (port->state) { + case STATE_SYSEX_0: + output_packet(urb, p0 | 0x05, 0xf7, 0, 0); + break; + case STATE_SYSEX_1: + output_packet(urb, p0 | 0x06, port->data[0], + 0xf7, 0); + break; + case STATE_SYSEX_2: + output_packet(urb, p0 | 0x07, port->data[0], + port->data[1], 0xf7); + break; + } + port->state = STATE_UNKNOWN; + break; + } + } else if (b >= 0x80) { + port->data[0] = b; + if (b >= 0xc0 && b <= 0xdf) + port->state = STATE_1PARAM; + else + port->state = STATE_2PARAM_1; + } else { /* b < 0x80 */ + switch (port->state) { + case STATE_1PARAM: + if (port->data[0] < 0xf0) { + p0 |= port->data[0] >> 4; + } else { + p0 |= 0x02; + port->state = STATE_UNKNOWN; + } + output_packet(urb, p0, port->data[0], b, 0); + break; + case STATE_2PARAM_1: + port->data[1] = b; + port->state = STATE_2PARAM_2; + break; + case STATE_2PARAM_2: + if (port->data[0] < 0xf0) { + p0 |= port->data[0] >> 4; + port->state = STATE_2PARAM_1; + } else { + p0 |= 0x03; + port->state = STATE_UNKNOWN; + } + output_packet(urb, p0, port->data[0], port->data[1], b); + break; + case STATE_SYSEX_0: + port->data[0] = b; + port->state = STATE_SYSEX_1; + break; + case STATE_SYSEX_1: + port->data[1] = b; + port->state = STATE_SYSEX_2; + break; + case STATE_SYSEX_2: + output_packet(urb, p0 | 0x04, port->data[0], + port->data[1], b); + port->state = STATE_SYSEX_0; + break; + } + } +} + +static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint *ep, + struct urb *urb) +{ + int p; + + /* FIXME: lower-numbered ports can starve higher-numbered ports */ + for (p = 0; p < 0x10; ++p) { + struct usbmidi_out_port *port = &ep->ports[p]; + if (!port->active) + continue; + while (urb->transfer_buffer_length + 3 < ep->max_transfer) { + uint8_t b; + if (snd_rawmidi_transmit(port->substream, &b, 1) != 1) { + port->active = 0; + break; + } + snd_usbmidi_transmit_byte(port, b, urb); + } + } +} + +static const struct usb_protocol_ops snd_usbmidi_standard_ops = { + .input = snd_usbmidi_standard_input, + .output = snd_usbmidi_standard_output, + .output_packet = snd_usbmidi_output_standard_packet, +}; + +static const struct usb_protocol_ops snd_usbmidi_midiman_ops = { + .input = snd_usbmidi_midiman_input, + .output = snd_usbmidi_standard_output, + .output_packet = snd_usbmidi_output_midiman_packet, +}; + +static const +struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = { + .input = snd_usbmidi_maudio_broken_running_status_input, + .output = snd_usbmidi_standard_output, + .output_packet = snd_usbmidi_output_standard_packet, +}; + +static const struct usb_protocol_ops snd_usbmidi_cme_ops = { + .input = snd_usbmidi_cme_input, + .output = snd_usbmidi_standard_output, + .output_packet = snd_usbmidi_output_standard_packet, +}; + +static const struct usb_protocol_ops snd_usbmidi_ch345_broken_sysex_ops = { + .input = ch345_broken_sysex_input, + .output = snd_usbmidi_standard_output, + .output_packet = snd_usbmidi_output_standard_packet, +}; + +/* + * AKAI MPD16 protocol: + * + * For control port (endpoint 1): + * ============================== + * One or more chunks consisting of first byte of (0x10 | msg_len) and then a + * SysEx message (msg_len=9 bytes long). + * + * For data port (endpoint 2): + * =========================== + * One or more chunks consisting of first byte of (0x20 | msg_len) and then a + * MIDI message (msg_len bytes long) + * + * Messages sent: Active Sense, Note On, Poly Pressure, Control Change. + */ +static void snd_usbmidi_akai_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + unsigned int pos = 0; + unsigned int len = (unsigned int)buffer_length; + while (pos < len) { + unsigned int port = (buffer[pos] >> 4) - 1; + unsigned int msg_len = buffer[pos] & 0x0f; + pos++; + if (pos + msg_len <= len && port < 2) + snd_usbmidi_input_data(ep, 0, &buffer[pos], msg_len); + pos += msg_len; + } +} + +#define MAX_AKAI_SYSEX_LEN 9 + +static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep, + struct urb *urb) +{ + uint8_t *msg; + int pos, end, count, buf_end; + uint8_t tmp[MAX_AKAI_SYSEX_LEN]; + struct snd_rawmidi_substream *substream = ep->ports[0].substream; + + if (!ep->ports[0].active) + return; + + msg = urb->transfer_buffer + urb->transfer_buffer_length; + buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1; + + /* only try adding more data when there's space for at least 1 SysEx */ + while (urb->transfer_buffer_length < buf_end) { + count = snd_rawmidi_transmit_peek(substream, + tmp, MAX_AKAI_SYSEX_LEN); + if (!count) { + ep->ports[0].active = 0; + return; + } + /* try to skip non-SysEx data */ + for (pos = 0; pos < count && tmp[pos] != 0xF0; pos++) + ; + + if (pos > 0) { + snd_rawmidi_transmit_ack(substream, pos); + continue; + } + + /* look for the start or end marker */ + for (end = 1; end < count && tmp[end] < 0xF0; end++) + ; + + /* next SysEx started before the end of current one */ + if (end < count && tmp[end] == 0xF0) { + /* it's incomplete - drop it */ + snd_rawmidi_transmit_ack(substream, end); + continue; + } + /* SysEx complete */ + if (end < count && tmp[end] == 0xF7) { + /* queue it, ack it, and get the next one */ + count = end + 1; + msg[0] = 0x10 | count; + memcpy(&msg[1], tmp, count); + snd_rawmidi_transmit_ack(substream, count); + urb->transfer_buffer_length += count + 1; + msg += count + 1; + continue; + } + /* less than 9 bytes and no end byte - wait for more */ + if (count < MAX_AKAI_SYSEX_LEN) { + ep->ports[0].active = 0; + return; + } + /* 9 bytes and no end marker in sight - malformed, skip it */ + snd_rawmidi_transmit_ack(substream, count); + } +} + +static const struct usb_protocol_ops snd_usbmidi_akai_ops = { + .input = snd_usbmidi_akai_input, + .output = snd_usbmidi_akai_output, +}; + +/* + * Novation USB MIDI protocol: number of data bytes is in the first byte + * (when receiving) (+1!) or in the second byte (when sending); data begins + * at the third byte. + */ + +static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1) + return; + snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1); +} + +static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint *ep, + struct urb *urb) +{ + uint8_t *transfer_buffer; + int count; + + if (!ep->ports[0].active) + return; + transfer_buffer = urb->transfer_buffer; + count = snd_rawmidi_transmit(ep->ports[0].substream, + &transfer_buffer[2], + ep->max_transfer - 2); + if (count < 1) { + ep->ports[0].active = 0; + return; + } + transfer_buffer[0] = 0; + transfer_buffer[1] = count; + urb->transfer_buffer_length = 2 + count; +} + +static const struct usb_protocol_ops snd_usbmidi_novation_ops = { + .input = snd_usbmidi_novation_input, + .output = snd_usbmidi_novation_output, +}; + +/* + * "raw" protocol: just move raw MIDI bytes from/to the endpoint + */ + +static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + snd_usbmidi_input_data(ep, 0, buffer, buffer_length); +} + +static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint *ep, + struct urb *urb) +{ + int count; + + if (!ep->ports[0].active) + return; + count = snd_rawmidi_transmit(ep->ports[0].substream, + urb->transfer_buffer, + ep->max_transfer); + if (count < 1) { + ep->ports[0].active = 0; + return; + } + urb->transfer_buffer_length = count; +} + +static const struct usb_protocol_ops snd_usbmidi_raw_ops = { + .input = snd_usbmidi_raw_input, + .output = snd_usbmidi_raw_output, +}; + +/* + * FTDI protocol: raw MIDI bytes, but input packets have two modem status bytes. + */ + +static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + if (buffer_length > 2) + snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2); +} + +static const struct usb_protocol_ops snd_usbmidi_ftdi_ops = { + .input = snd_usbmidi_ftdi_input, + .output = snd_usbmidi_raw_output, +}; + +static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + if (buffer_length != 9) + return; + buffer_length = 8; + while (buffer_length && buffer[buffer_length - 1] == 0xFD) + buffer_length--; + if (buffer_length) + snd_usbmidi_input_data(ep, 0, buffer, buffer_length); +} + +static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep, + struct urb *urb) +{ + int count; + + if (!ep->ports[0].active) + return; + switch (snd_usb_get_speed(ep->umidi->dev)) { + case USB_SPEED_HIGH: + case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: + count = 1; + break; + default: + count = 2; + } + count = snd_rawmidi_transmit(ep->ports[0].substream, + urb->transfer_buffer, + count); + if (count < 1) { + ep->ports[0].active = 0; + return; + } + + memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count); + urb->transfer_buffer_length = ep->max_transfer; +} + +static const struct usb_protocol_ops snd_usbmidi_122l_ops = { + .input = snd_usbmidi_us122l_input, + .output = snd_usbmidi_us122l_output, +}; + +/* + * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching. + */ + +static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint *ep) +{ + static const u8 init_data[] = { + /* initialization magic: "get version" */ + 0xf0, + 0x00, 0x20, 0x31, /* Emagic */ + 0x64, /* Unitor8 */ + 0x0b, /* version number request */ + 0x00, /* command version */ + 0x00, /* EEPROM, box 0 */ + 0xf7 + }; + send_bulk_static_data(ep, init_data, sizeof(init_data)); + /* while we're at it, pour on more magic */ + send_bulk_static_data(ep, init_data, sizeof(init_data)); +} + +static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint *ep) +{ + static const u8 finish_data[] = { + /* switch to patch mode with last preset */ + 0xf0, + 0x00, 0x20, 0x31, /* Emagic */ + 0x64, /* Unitor8 */ + 0x10, /* patch switch command */ + 0x00, /* command version */ + 0x7f, /* to all boxes */ + 0x40, /* last preset in EEPROM */ + 0xf7 + }; + send_bulk_static_data(ep, finish_data, sizeof(finish_data)); +} + +static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint *ep, + uint8_t *buffer, int buffer_length) +{ + int i; + + /* FF indicates end of valid data */ + for (i = 0; i < buffer_length; ++i) + if (buffer[i] == 0xff) { + buffer_length = i; + break; + } + + /* handle F5 at end of last buffer */ + if (ep->seen_f5) + goto switch_port; + + while (buffer_length > 0) { + /* determine size of data until next F5 */ + for (i = 0; i < buffer_length; ++i) + if (buffer[i] == 0xf5) + break; + snd_usbmidi_input_data(ep, ep->current_port, buffer, i); + buffer += i; + buffer_length -= i; + + if (buffer_length <= 0) + break; + /* assert(buffer[0] == 0xf5); */ + ep->seen_f5 = 1; + ++buffer; + --buffer_length; + + switch_port: + if (buffer_length <= 0) + break; + if (buffer[0] < 0x80) { + ep->current_port = (buffer[0] - 1) & 15; + ++buffer; + --buffer_length; + } + ep->seen_f5 = 0; + } +} + +static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint *ep, + struct urb *urb) +{ + int port0 = ep->current_port; + uint8_t *buf = urb->transfer_buffer; + int buf_free = ep->max_transfer; + int length, i; + + for (i = 0; i < 0x10; ++i) { + /* round-robin, starting at the last current port */ + int portnum = (port0 + i) & 15; + struct usbmidi_out_port *port = &ep->ports[portnum]; + + if (!port->active) + continue; + if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) { + port->active = 0; + continue; + } + + if (portnum != ep->current_port) { + if (buf_free < 2) + break; + ep->current_port = portnum; + buf[0] = 0xf5; + buf[1] = (portnum + 1) & 15; + buf += 2; + buf_free -= 2; + } + + if (buf_free < 1) + break; + length = snd_rawmidi_transmit(port->substream, buf, buf_free); + if (length > 0) { + buf += length; + buf_free -= length; + if (buf_free < 1) + break; + } + } + if (buf_free < ep->max_transfer && buf_free > 0) { + *buf = 0xff; + --buf_free; + } + urb->transfer_buffer_length = ep->max_transfer - buf_free; +} + +static const struct usb_protocol_ops snd_usbmidi_emagic_ops = { + .input = snd_usbmidi_emagic_input, + .output = snd_usbmidi_emagic_output, + .init_out_endpoint = snd_usbmidi_emagic_init_out, + .finish_out_endpoint = snd_usbmidi_emagic_finish_out, +}; + + +static void update_roland_altsetting(struct snd_usb_midi *umidi) +{ + struct usb_interface *intf; + struct usb_host_interface *hostif; + struct usb_interface_descriptor *intfd; + int is_light_load; + + intf = umidi->iface; + is_light_load = intf->cur_altsetting != intf->altsetting; + if (umidi->roland_load_ctl->private_value == is_light_load) + return; + hostif = &intf->altsetting[umidi->roland_load_ctl->private_value]; + intfd = get_iface_desc(hostif); + snd_usbmidi_input_stop(&umidi->list); + usb_set_interface(umidi->dev, intfd->bInterfaceNumber, + intfd->bAlternateSetting); + snd_usbmidi_input_start(&umidi->list); +} + +static int substream_open(struct snd_rawmidi_substream *substream, int dir, + int open) +{ + struct snd_usb_midi *umidi = substream->rmidi->private_data; + struct snd_kcontrol *ctl; + + down_read(&umidi->disc_rwsem); + if (umidi->disconnected) { + up_read(&umidi->disc_rwsem); + return open ? -ENODEV : 0; + } + + mutex_lock(&umidi->mutex); + if (open) { + if (!umidi->opened[0] && !umidi->opened[1]) { + if (umidi->roland_load_ctl) { + ctl = umidi->roland_load_ctl; + ctl->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_INACTIVE; + snd_ctl_notify(umidi->card, + SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); + update_roland_altsetting(umidi); + } + } + umidi->opened[dir]++; + if (umidi->opened[1]) + snd_usbmidi_input_start(&umidi->list); + } else { + umidi->opened[dir]--; + if (!umidi->opened[1]) + snd_usbmidi_input_stop(&umidi->list); + if (!umidi->opened[0] && !umidi->opened[1]) { + if (umidi->roland_load_ctl) { + ctl = umidi->roland_load_ctl; + ctl->vd[0].access &= + ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; + snd_ctl_notify(umidi->card, + SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); + } + } + } + mutex_unlock(&umidi->mutex); + up_read(&umidi->disc_rwsem); + return 0; +} + +static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) +{ + struct snd_usb_midi *umidi = substream->rmidi->private_data; + struct usbmidi_out_port *port = NULL; + int i, j; + + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) + if (umidi->endpoints[i].out) + for (j = 0; j < 0x10; ++j) + if (umidi->endpoints[i].out->ports[j].substream == substream) { + port = &umidi->endpoints[i].out->ports[j]; + break; + } + if (!port) + return -ENXIO; + + substream->runtime->private_data = port; + port->state = STATE_UNKNOWN; + return substream_open(substream, 0, 1); +} + +static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) +{ + struct usbmidi_out_port *port = substream->runtime->private_data; + + cancel_work_sync(&port->ep->work); + return substream_open(substream, 0, 0); +} + +static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + struct usbmidi_out_port *port = + (struct usbmidi_out_port *)substream->runtime->private_data; + + port->active = up; + if (up) { + if (port->ep->umidi->disconnected) { + /* gobble up remaining bytes to prevent wait in + * snd_rawmidi_drain_output */ + snd_rawmidi_proceed(substream); + return; + } + queue_work(system_highpri_wq, &port->ep->work); + } +} + +static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream) +{ + struct usbmidi_out_port *port = substream->runtime->private_data; + struct snd_usb_midi_out_endpoint *ep = port->ep; + unsigned int drain_urbs; + DEFINE_WAIT(wait); + long timeout = msecs_to_jiffies(50); + + if (ep->umidi->disconnected) + return; + /* + * The substream buffer is empty, but some data might still be in the + * currently active URBs, so we have to wait for those to complete. + */ + spin_lock_irq(&ep->buffer_lock); + drain_urbs = ep->active_urbs; + if (drain_urbs) { + ep->drain_urbs |= drain_urbs; + do { + prepare_to_wait(&ep->drain_wait, &wait, + TASK_UNINTERRUPTIBLE); + spin_unlock_irq(&ep->buffer_lock); + timeout = schedule_timeout(timeout); + spin_lock_irq(&ep->buffer_lock); + drain_urbs &= ep->drain_urbs; + } while (drain_urbs && timeout); + finish_wait(&ep->drain_wait, &wait); + } + port->active = 0; + spin_unlock_irq(&ep->buffer_lock); +} + +static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream) +{ + return substream_open(substream, 1, 1); +} + +static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream) +{ + return substream_open(substream, 1, 0); +} + +static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, + int up) +{ + struct snd_usb_midi *umidi = substream->rmidi->private_data; + + if (up) + set_bit(substream->number, &umidi->input_triggered); + else + clear_bit(substream->number, &umidi->input_triggered); +} + +static const struct snd_rawmidi_ops snd_usbmidi_output_ops = { + .open = snd_usbmidi_output_open, + .close = snd_usbmidi_output_close, + .trigger = snd_usbmidi_output_trigger, + .drain = snd_usbmidi_output_drain, +}; + +static const struct snd_rawmidi_ops snd_usbmidi_input_ops = { + .open = snd_usbmidi_input_open, + .close = snd_usbmidi_input_close, + .trigger = snd_usbmidi_input_trigger +}; + +static void free_urb_and_buffer(struct snd_usb_midi *umidi, struct urb *urb, + unsigned int buffer_length) +{ + usb_free_coherent(umidi->dev, buffer_length, + urb->transfer_buffer, urb->transfer_dma); + usb_free_urb(urb); +} + +/* + * Frees an input endpoint. + * May be called when ep hasn't been initialized completely. + */ +static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint *ep) +{ + unsigned int i; + + for (i = 0; i < INPUT_URBS; ++i) + if (ep->urbs[i]) + free_urb_and_buffer(ep->umidi, ep->urbs[i], + ep->urbs[i]->transfer_buffer_length); + kfree(ep); +} + +/* + * Creates an input endpoint. + */ +static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *ep_info, + struct snd_usb_midi_endpoint *rep) +{ + struct snd_usb_midi_in_endpoint *ep; + void *buffer; + unsigned int pipe; + int length; + unsigned int i; + int err; + + rep->in = NULL; + ep = kzalloc(sizeof(*ep), GFP_KERNEL); + if (!ep) + return -ENOMEM; + ep->umidi = umidi; + + for (i = 0; i < INPUT_URBS; ++i) { + ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); + if (!ep->urbs[i]) { + err = -ENOMEM; + goto error; + } + } + if (ep_info->in_interval) + pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep); + else + pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep); + length = usb_maxpacket(umidi->dev, pipe); + for (i = 0; i < INPUT_URBS; ++i) { + buffer = usb_alloc_coherent(umidi->dev, length, GFP_KERNEL, + &ep->urbs[i]->transfer_dma); + if (!buffer) { + err = -ENOMEM; + goto error; + } + if (ep_info->in_interval) + usb_fill_int_urb(ep->urbs[i], umidi->dev, + pipe, buffer, length, + snd_usbmidi_in_urb_complete, + ep, ep_info->in_interval); + else + usb_fill_bulk_urb(ep->urbs[i], umidi->dev, + pipe, buffer, length, + snd_usbmidi_in_urb_complete, ep); + ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + err = usb_urb_ep_type_check(ep->urbs[i]); + if (err < 0) { + dev_err(&umidi->dev->dev, "invalid MIDI in EP %x\n", + ep_info->in_ep); + goto error; + } + } + + rep->in = ep; + return 0; + + error: + snd_usbmidi_in_endpoint_delete(ep); + return err; +} + +/* + * Frees an output endpoint. + * May be called when ep hasn't been initialized completely. + */ +static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep) +{ + unsigned int i; + + for (i = 0; i < OUTPUT_URBS; ++i) + if (ep->urbs[i].urb) { + free_urb_and_buffer(ep->umidi, ep->urbs[i].urb, + ep->max_transfer); + ep->urbs[i].urb = NULL; + } +} + +static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep) +{ + snd_usbmidi_out_endpoint_clear(ep); + kfree(ep); +} + +/* + * Creates an output endpoint, and initializes output ports. + */ +static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *ep_info, + struct snd_usb_midi_endpoint *rep) +{ + struct snd_usb_midi_out_endpoint *ep; + unsigned int i; + unsigned int pipe; + void *buffer; + int err; + + rep->out = NULL; + ep = kzalloc(sizeof(*ep), GFP_KERNEL); + if (!ep) + return -ENOMEM; + ep->umidi = umidi; + + for (i = 0; i < OUTPUT_URBS; ++i) { + ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL); + if (!ep->urbs[i].urb) { + err = -ENOMEM; + goto error; + } + ep->urbs[i].ep = ep; + } + if (ep_info->out_interval) + pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep); + else + pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep); + switch (umidi->usb_id) { + default: + ep->max_transfer = usb_maxpacket(umidi->dev, pipe); + break; + /* + * Various chips declare a packet size larger than 4 bytes, but + * do not actually work with larger packets: + */ + case USB_ID(0x0a67, 0x5011): /* Medeli DD305 */ + case USB_ID(0x0a92, 0x1020): /* ESI M4U */ + case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */ + case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */ + case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */ + case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */ + case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */ + ep->max_transfer = 4; + break; + /* + * Some devices only work with 9 bytes packet size: + */ + case USB_ID(0x0644, 0x800e): /* Tascam US-122L */ + case USB_ID(0x0644, 0x800f): /* Tascam US-144 */ + ep->max_transfer = 9; + break; + } + for (i = 0; i < OUTPUT_URBS; ++i) { + buffer = usb_alloc_coherent(umidi->dev, + ep->max_transfer, GFP_KERNEL, + &ep->urbs[i].urb->transfer_dma); + if (!buffer) { + err = -ENOMEM; + goto error; + } + if (ep_info->out_interval) + usb_fill_int_urb(ep->urbs[i].urb, umidi->dev, + pipe, buffer, ep->max_transfer, + snd_usbmidi_out_urb_complete, + &ep->urbs[i], ep_info->out_interval); + else + usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev, + pipe, buffer, ep->max_transfer, + snd_usbmidi_out_urb_complete, + &ep->urbs[i]); + err = usb_urb_ep_type_check(ep->urbs[i].urb); + if (err < 0) { + dev_err(&umidi->dev->dev, "invalid MIDI out EP %x\n", + ep_info->out_ep); + goto error; + } + ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + } + + spin_lock_init(&ep->buffer_lock); + INIT_WORK(&ep->work, snd_usbmidi_out_work); + init_waitqueue_head(&ep->drain_wait); + + for (i = 0; i < 0x10; ++i) + if (ep_info->out_cables & (1 << i)) { + ep->ports[i].ep = ep; + ep->ports[i].cable = i << 4; + } + + if (umidi->usb_protocol_ops->init_out_endpoint) + umidi->usb_protocol_ops->init_out_endpoint(ep); + + rep->out = ep; + return 0; + + error: + snd_usbmidi_out_endpoint_delete(ep); + return err; +} + +/* + * Frees everything. + */ +static void snd_usbmidi_free(struct snd_usb_midi *umidi) +{ + int i; + + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { + struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; + if (ep->out) + snd_usbmidi_out_endpoint_delete(ep->out); + if (ep->in) + snd_usbmidi_in_endpoint_delete(ep->in); + } + mutex_destroy(&umidi->mutex); + kfree(umidi); +} + +/* + * Unlinks all URBs (must be done before the usb_device is deleted). + */ +void snd_usbmidi_disconnect(struct list_head *p) +{ + struct snd_usb_midi *umidi; + unsigned int i, j; + + umidi = list_entry(p, struct snd_usb_midi, list); + /* + * an URB's completion handler may start the timer and + * a timer may submit an URB. To reliably break the cycle + * a flag under lock must be used + */ + down_write(&umidi->disc_rwsem); + spin_lock_irq(&umidi->disc_lock); + umidi->disconnected = 1; + spin_unlock_irq(&umidi->disc_lock); + up_write(&umidi->disc_rwsem); + + del_timer_sync(&umidi->error_timer); + + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { + struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; + if (ep->out) + cancel_work_sync(&ep->out->work); + if (ep->out) { + for (j = 0; j < OUTPUT_URBS; ++j) + usb_kill_urb(ep->out->urbs[j].urb); + if (umidi->usb_protocol_ops->finish_out_endpoint) + umidi->usb_protocol_ops->finish_out_endpoint(ep->out); + ep->out->active_urbs = 0; + if (ep->out->drain_urbs) { + ep->out->drain_urbs = 0; + wake_up(&ep->out->drain_wait); + } + } + if (ep->in) + for (j = 0; j < INPUT_URBS; ++j) + usb_kill_urb(ep->in->urbs[j]); + /* free endpoints here; later call can result in Oops */ + if (ep->out) + snd_usbmidi_out_endpoint_clear(ep->out); + if (ep->in) { + snd_usbmidi_in_endpoint_delete(ep->in); + ep->in = NULL; + } + } +} +EXPORT_SYMBOL(snd_usbmidi_disconnect); + +static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) +{ + struct snd_usb_midi *umidi = rmidi->private_data; + snd_usbmidi_free(umidi); +} + +static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi *umidi, + int stream, + int number) +{ + struct snd_rawmidi_substream *substream; + + list_for_each_entry(substream, &umidi->rmidi->streams[stream].substreams, + list) { + if (substream->number == number) + return substream; + } + return NULL; +} + +/* + * This list specifies names for ports that do not fit into the standard + * "(product) MIDI (n)" schema because they aren't external MIDI ports, + * such as internal control or synthesizer ports. + */ +static struct port_info { + u32 id; + short int port; + short int voices; + const char *name; + unsigned int seq_flags; +} snd_usbmidi_port_info[] = { +#define PORT_INFO(vendor, product, num, name_, voices_, flags) \ + { .id = USB_ID(vendor, product), \ + .port = num, .voices = voices_, \ + .name = name_, .seq_flags = flags } +#define EXTERNAL_PORT(vendor, product, num, name) \ + PORT_INFO(vendor, product, num, name, 0, \ + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ + SNDRV_SEQ_PORT_TYPE_HARDWARE | \ + SNDRV_SEQ_PORT_TYPE_PORT) +#define CONTROL_PORT(vendor, product, num, name) \ + PORT_INFO(vendor, product, num, name, 0, \ + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ + SNDRV_SEQ_PORT_TYPE_HARDWARE) +#define GM_SYNTH_PORT(vendor, product, num, name, voices) \ + PORT_INFO(vendor, product, num, name, voices, \ + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ + SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ + SNDRV_SEQ_PORT_TYPE_HARDWARE | \ + SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) +#define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \ + PORT_INFO(vendor, product, num, name, voices, \ + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ + SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ + SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ + SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ + SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ + SNDRV_SEQ_PORT_TYPE_HARDWARE | \ + SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) +#define SOUNDCANVAS_PORT(vendor, product, num, name, voices) \ + PORT_INFO(vendor, product, num, name, voices, \ + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ + SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ + SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ + SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ + SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ + SNDRV_SEQ_PORT_TYPE_MIDI_MT32 | \ + SNDRV_SEQ_PORT_TYPE_HARDWARE | \ + SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) + /* Yamaha MOTIF XF */ + GM_SYNTH_PORT(0x0499, 0x105c, 0, "%s Tone Generator", 128), + CONTROL_PORT(0x0499, 0x105c, 1, "%s Remote Control"), + EXTERNAL_PORT(0x0499, 0x105c, 2, "%s Thru"), + CONTROL_PORT(0x0499, 0x105c, 3, "%s Editor"), + /* Roland UA-100 */ + CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"), + /* Roland SC-8850 */ + SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128), + SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128), + SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128), + SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128), + EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"), + EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"), + /* Roland U-8 */ + EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"), + /* Roland SC-8820 */ + SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64), + SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64), + EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"), + /* Roland SK-500 */ + SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64), + SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64), + EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"), + /* Roland SC-D70 */ + SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64), + SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64), + EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"), + /* Edirol UM-880 */ + CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"), + /* Edirol SD-90 */ + ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128), + ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128), + EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"), + EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"), + /* Edirol UM-550 */ + CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"), + /* Edirol SD-20 */ + ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64), + ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64), + EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"), + /* Edirol SD-80 */ + ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128), + ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128), + EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"), + EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"), + /* Edirol UA-700 */ + EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"), + /* Roland VariOS */ + EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"), + EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"), + EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"), + /* Edirol PCR */ + EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"), + EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"), + EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"), + /* BOSS GS-10 */ + EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"), + /* Edirol UA-1000 */ + EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"), + /* Edirol UR-80 */ + EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"), + EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"), + EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"), + /* Edirol PCR-A */ + EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"), + EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"), + EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"), + /* BOSS GT-PRO */ + CONTROL_PORT(0x0582, 0x0089, 0, "%s Control"), + /* Edirol UM-3EX */ + CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"), + /* Roland VG-99 */ + CONTROL_PORT(0x0582, 0x00b2, 0, "%s Control"), + EXTERNAL_PORT(0x0582, 0x00b2, 1, "%s MIDI"), + /* Cakewalk Sonar V-Studio 100 */ + EXTERNAL_PORT(0x0582, 0x00eb, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x00eb, 1, "%s Control"), + /* Roland VB-99 */ + CONTROL_PORT(0x0582, 0x0102, 0, "%s Control"), + EXTERNAL_PORT(0x0582, 0x0102, 1, "%s MIDI"), + /* Roland A-PRO */ + EXTERNAL_PORT(0x0582, 0x010f, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x010f, 1, "%s 1"), + CONTROL_PORT(0x0582, 0x010f, 2, "%s 2"), + /* Roland SD-50 */ + ROLAND_SYNTH_PORT(0x0582, 0x0114, 0, "%s Synth", 128), + EXTERNAL_PORT(0x0582, 0x0114, 1, "%s MIDI"), + CONTROL_PORT(0x0582, 0x0114, 2, "%s Control"), + /* Roland OCTA-CAPTURE */ + EXTERNAL_PORT(0x0582, 0x0120, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x0120, 1, "%s Control"), + EXTERNAL_PORT(0x0582, 0x0121, 0, "%s MIDI"), + CONTROL_PORT(0x0582, 0x0121, 1, "%s Control"), + /* Roland SPD-SX */ + CONTROL_PORT(0x0582, 0x0145, 0, "%s Control"), + EXTERNAL_PORT(0x0582, 0x0145, 1, "%s MIDI"), + /* Roland A-Series */ + CONTROL_PORT(0x0582, 0x0156, 0, "%s Keyboard"), + EXTERNAL_PORT(0x0582, 0x0156, 1, "%s MIDI"), + /* Roland INTEGRA-7 */ + ROLAND_SYNTH_PORT(0x0582, 0x015b, 0, "%s Synth", 128), + CONTROL_PORT(0x0582, 0x015b, 1, "%s Control"), + /* M-Audio MidiSport 8x8 */ + CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"), + CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"), + /* MOTU Fastlane */ + EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"), + EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"), + /* Emagic Unitor8/AMT8/MT4 */ + EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"), + EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"), + EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"), + /* Akai MPD16 */ + CONTROL_PORT(0x09e8, 0x0062, 0, "%s Control"), + PORT_INFO(0x09e8, 0x0062, 1, "%s MIDI", 0, + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | + SNDRV_SEQ_PORT_TYPE_HARDWARE), + /* Access Music Virus TI */ + EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"), + PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0, + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | + SNDRV_SEQ_PORT_TYPE_HARDWARE | + SNDRV_SEQ_PORT_TYPE_SYNTHESIZER), +}; + +static struct port_info *find_port_info(struct snd_usb_midi *umidi, int number) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) { + if (snd_usbmidi_port_info[i].id == umidi->usb_id && + snd_usbmidi_port_info[i].port == number) + return &snd_usbmidi_port_info[i]; + } + return NULL; +} + +static void snd_usbmidi_get_port_info(struct snd_rawmidi *rmidi, int number, + struct snd_seq_port_info *seq_port_info) +{ + struct snd_usb_midi *umidi = rmidi->private_data; + struct port_info *port_info; + + /* TODO: read port flags from descriptors */ + port_info = find_port_info(umidi, number); + if (port_info) { + seq_port_info->type = port_info->seq_flags; + seq_port_info->midi_voices = port_info->voices; + } +} + +static struct usb_midi_in_jack_descriptor *find_usb_in_jack_descriptor( + struct usb_host_interface *hostif, uint8_t jack_id) +{ + unsigned char *extra = hostif->extra; + int extralen = hostif->extralen; + + while (extralen > 4) { + struct usb_midi_in_jack_descriptor *injd = + (struct usb_midi_in_jack_descriptor *)extra; + + if (injd->bLength >= sizeof(*injd) && + injd->bDescriptorType == USB_DT_CS_INTERFACE && + injd->bDescriptorSubtype == UAC_MIDI_IN_JACK && + injd->bJackID == jack_id) + return injd; + if (!extra[0]) + break; + extralen -= extra[0]; + extra += extra[0]; + } + return NULL; +} + +static struct usb_midi_out_jack_descriptor *find_usb_out_jack_descriptor( + struct usb_host_interface *hostif, uint8_t jack_id) +{ + unsigned char *extra = hostif->extra; + int extralen = hostif->extralen; + + while (extralen > 4) { + struct usb_midi_out_jack_descriptor *outjd = + (struct usb_midi_out_jack_descriptor *)extra; + + if (outjd->bLength >= sizeof(*outjd) && + outjd->bDescriptorType == USB_DT_CS_INTERFACE && + outjd->bDescriptorSubtype == UAC_MIDI_OUT_JACK && + outjd->bJackID == jack_id) + return outjd; + if (!extra[0]) + break; + extralen -= extra[0]; + extra += extra[0]; + } + return NULL; +} + +static void snd_usbmidi_init_substream(struct snd_usb_midi *umidi, + int stream, int number, int jack_id, + struct snd_rawmidi_substream **rsubstream) +{ + struct port_info *port_info; + const char *name_format; + struct usb_interface *intf; + struct usb_host_interface *hostif; + struct usb_midi_in_jack_descriptor *injd; + struct usb_midi_out_jack_descriptor *outjd; + uint8_t jack_name_buf[32]; + uint8_t *default_jack_name = "MIDI"; + uint8_t *jack_name = default_jack_name; + uint8_t iJack; + size_t sz; + int res; + + struct snd_rawmidi_substream *substream = + snd_usbmidi_find_substream(umidi, stream, number); + if (!substream) { + dev_err(&umidi->dev->dev, "substream %d:%d not found\n", stream, + number); + return; + } + + intf = umidi->iface; + if (intf && jack_id >= 0) { + hostif = intf->cur_altsetting; + iJack = 0; + if (stream != SNDRV_RAWMIDI_STREAM_OUTPUT) { + /* in jacks connect to outs */ + outjd = find_usb_out_jack_descriptor(hostif, jack_id); + if (outjd) { + sz = USB_DT_MIDI_OUT_SIZE(outjd->bNrInputPins); + if (outjd->bLength >= sz) + iJack = *(((uint8_t *) outjd) + sz - sizeof(uint8_t)); + } + } else { + /* and out jacks connect to ins */ + injd = find_usb_in_jack_descriptor(hostif, jack_id); + if (injd) + iJack = injd->iJack; + } + if (iJack != 0) { + res = usb_string(umidi->dev, iJack, jack_name_buf, + ARRAY_SIZE(jack_name_buf)); + if (res) + jack_name = jack_name_buf; + } + } + + port_info = find_port_info(umidi, number); + name_format = port_info ? port_info->name : + (jack_name != default_jack_name ? "%s %s" : "%s %s %d"); + snprintf(substream->name, sizeof(substream->name), + name_format, umidi->card->shortname, jack_name, number + 1); + + *rsubstream = substream; +} + +/* + * Creates the endpoints and their ports. + */ +static int snd_usbmidi_create_endpoints(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *endpoints) +{ + int i, j, err; + int out_ports = 0, in_ports = 0; + + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { + if (endpoints[i].out_cables) { + err = snd_usbmidi_out_endpoint_create(umidi, + &endpoints[i], + &umidi->endpoints[i]); + if (err < 0) + return err; + } + if (endpoints[i].in_cables) { + err = snd_usbmidi_in_endpoint_create(umidi, + &endpoints[i], + &umidi->endpoints[i]); + if (err < 0) + return err; + } + + for (j = 0; j < 0x10; ++j) { + if (endpoints[i].out_cables & (1 << j)) { + snd_usbmidi_init_substream(umidi, + SNDRV_RAWMIDI_STREAM_OUTPUT, + out_ports, + endpoints[i].assoc_out_jacks[j], + &umidi->endpoints[i].out->ports[j].substream); + ++out_ports; + } + if (endpoints[i].in_cables & (1 << j)) { + snd_usbmidi_init_substream(umidi, + SNDRV_RAWMIDI_STREAM_INPUT, + in_ports, + endpoints[i].assoc_in_jacks[j], + &umidi->endpoints[i].in->ports[j].substream); + ++in_ports; + } + } + } + dev_dbg(&umidi->dev->dev, "created %d output and %d input ports\n", + out_ports, in_ports); + return 0; +} + +static struct usb_ms_endpoint_descriptor *find_usb_ms_endpoint_descriptor( + struct usb_host_endpoint *hostep) +{ + unsigned char *extra = hostep->extra; + int extralen = hostep->extralen; + + while (extralen > 3) { + struct usb_ms_endpoint_descriptor *ms_ep = + (struct usb_ms_endpoint_descriptor *)extra; + + if (ms_ep->bLength > 3 && + ms_ep->bDescriptorType == USB_DT_CS_ENDPOINT && + ms_ep->bDescriptorSubtype == UAC_MS_GENERAL) + return ms_ep; + if (!extra[0]) + break; + extralen -= extra[0]; + extra += extra[0]; + } + return NULL; +} + +/* + * Returns MIDIStreaming device capabilities. + */ +static int snd_usbmidi_get_ms_info(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *endpoints) +{ + struct usb_interface *intf; + struct usb_host_interface *hostif; + struct usb_interface_descriptor *intfd; + struct usb_ms_header_descriptor *ms_header; + struct usb_host_endpoint *hostep; + struct usb_endpoint_descriptor *ep; + struct usb_ms_endpoint_descriptor *ms_ep; + int i, j, epidx; + + intf = umidi->iface; + if (!intf) + return -ENXIO; + hostif = &intf->altsetting[0]; + intfd = get_iface_desc(hostif); + ms_header = (struct usb_ms_header_descriptor *)hostif->extra; + if (hostif->extralen >= 7 && + ms_header->bLength >= 7 && + ms_header->bDescriptorType == USB_DT_CS_INTERFACE && + ms_header->bDescriptorSubtype == UAC_HEADER) + dev_dbg(&umidi->dev->dev, "MIDIStreaming version %02x.%02x\n", + ((uint8_t *)&ms_header->bcdMSC)[1], ((uint8_t *)&ms_header->bcdMSC)[0]); + else + dev_warn(&umidi->dev->dev, + "MIDIStreaming interface descriptor not found\n"); + + epidx = 0; + for (i = 0; i < intfd->bNumEndpoints; ++i) { + hostep = &hostif->endpoint[i]; + ep = get_ep_desc(hostep); + if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep)) + continue; + ms_ep = find_usb_ms_endpoint_descriptor(hostep); + if (!ms_ep) + continue; + if (ms_ep->bLength <= sizeof(*ms_ep)) + continue; + if (ms_ep->bNumEmbMIDIJack > 0x10) + continue; + if (ms_ep->bLength < sizeof(*ms_ep) + ms_ep->bNumEmbMIDIJack) + continue; + if (usb_endpoint_dir_out(ep)) { + if (endpoints[epidx].out_ep) { + if (++epidx >= MIDI_MAX_ENDPOINTS) { + dev_warn(&umidi->dev->dev, + "too many endpoints\n"); + break; + } + } + endpoints[epidx].out_ep = usb_endpoint_num(ep); + if (usb_endpoint_xfer_int(ep)) + endpoints[epidx].out_interval = ep->bInterval; + else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) + /* + * Low speed bulk transfers don't exist, so + * force interrupt transfers for devices like + * ESI MIDI Mate that try to use them anyway. + */ + endpoints[epidx].out_interval = 1; + endpoints[epidx].out_cables = + (1 << ms_ep->bNumEmbMIDIJack) - 1; + for (j = 0; j < ms_ep->bNumEmbMIDIJack; ++j) + endpoints[epidx].assoc_out_jacks[j] = ms_ep->baAssocJackID[j]; + for (; j < ARRAY_SIZE(endpoints[epidx].assoc_out_jacks); ++j) + endpoints[epidx].assoc_out_jacks[j] = -1; + dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", + ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); + } else { + if (endpoints[epidx].in_ep) { + if (++epidx >= MIDI_MAX_ENDPOINTS) { + dev_warn(&umidi->dev->dev, + "too many endpoints\n"); + break; + } + } + endpoints[epidx].in_ep = usb_endpoint_num(ep); + if (usb_endpoint_xfer_int(ep)) + endpoints[epidx].in_interval = ep->bInterval; + else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) + endpoints[epidx].in_interval = 1; + endpoints[epidx].in_cables = + (1 << ms_ep->bNumEmbMIDIJack) - 1; + for (j = 0; j < ms_ep->bNumEmbMIDIJack; ++j) + endpoints[epidx].assoc_in_jacks[j] = ms_ep->baAssocJackID[j]; + for (; j < ARRAY_SIZE(endpoints[epidx].assoc_in_jacks); ++j) + endpoints[epidx].assoc_in_jacks[j] = -1; + dev_dbg(&umidi->dev->dev, "EP %02X: %d jack(s)\n", + ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); + } + } + return 0; +} + +static int roland_load_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *info) +{ + static const char *const names[] = { "High Load", "Light Load" }; + + return snd_ctl_enum_info(info, 1, 2, names); +} + +static int roland_load_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + value->value.enumerated.item[0] = kcontrol->private_value; + return 0; +} + +static int roland_load_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *value) +{ + struct snd_usb_midi *umidi = kcontrol->private_data; + int changed; + + if (value->value.enumerated.item[0] > 1) + return -EINVAL; + mutex_lock(&umidi->mutex); + changed = value->value.enumerated.item[0] != kcontrol->private_value; + if (changed) + kcontrol->private_value = value->value.enumerated.item[0]; + mutex_unlock(&umidi->mutex); + return changed; +} + +static const struct snd_kcontrol_new roland_load_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "MIDI Input Mode", + .info = roland_load_info, + .get = roland_load_get, + .put = roland_load_put, + .private_value = 1, +}; + +/* + * On Roland devices, use the second alternate setting to be able to use + * the interrupt input endpoint. + */ +static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi *umidi) +{ + struct usb_interface *intf; + struct usb_host_interface *hostif; + struct usb_interface_descriptor *intfd; + + intf = umidi->iface; + if (!intf || intf->num_altsetting != 2) + return; + + hostif = &intf->altsetting[1]; + intfd = get_iface_desc(hostif); + /* If either or both of the endpoints support interrupt transfer, + * then use the alternate setting + */ + if (intfd->bNumEndpoints != 2 || + !((get_endpoint(hostif, 0)->bmAttributes & + USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT || + (get_endpoint(hostif, 1)->bmAttributes & + USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) + return; + + dev_dbg(&umidi->dev->dev, "switching to altsetting %d with int ep\n", + intfd->bAlternateSetting); + usb_set_interface(umidi->dev, intfd->bInterfaceNumber, + intfd->bAlternateSetting); + + umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi); + if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0) + umidi->roland_load_ctl = NULL; +} + +/* + * Try to find any usable endpoints in the interface. + */ +static int snd_usbmidi_detect_endpoints(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *endpoint, + int max_endpoints) +{ + struct usb_interface *intf; + struct usb_host_interface *hostif; + struct usb_interface_descriptor *intfd; + struct usb_endpoint_descriptor *epd; + int i, out_eps = 0, in_eps = 0; + + if (USB_ID_VENDOR(umidi->usb_id) == 0x0582) + snd_usbmidi_switch_roland_altsetting(umidi); + + if (endpoint[0].out_ep || endpoint[0].in_ep) + return 0; + + intf = umidi->iface; + if (!intf || intf->num_altsetting < 1) + return -ENOENT; + hostif = intf->cur_altsetting; + intfd = get_iface_desc(hostif); + + for (i = 0; i < intfd->bNumEndpoints; ++i) { + epd = get_endpoint(hostif, i); + if (!usb_endpoint_xfer_bulk(epd) && + !usb_endpoint_xfer_int(epd)) + continue; + if (out_eps < max_endpoints && + usb_endpoint_dir_out(epd)) { + endpoint[out_eps].out_ep = usb_endpoint_num(epd); + if (usb_endpoint_xfer_int(epd)) + endpoint[out_eps].out_interval = epd->bInterval; + ++out_eps; + } + if (in_eps < max_endpoints && + usb_endpoint_dir_in(epd)) { + endpoint[in_eps].in_ep = usb_endpoint_num(epd); + if (usb_endpoint_xfer_int(epd)) + endpoint[in_eps].in_interval = epd->bInterval; + ++in_eps; + } + } + return (out_eps || in_eps) ? 0 : -ENOENT; +} + +/* + * Detects the endpoints for one-port-per-endpoint protocols. + */ +static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *endpoints) +{ + int err, i; + + err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS); + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { + if (endpoints[i].out_ep) + endpoints[i].out_cables = 0x0001; + if (endpoints[i].in_ep) + endpoints[i].in_cables = 0x0001; + } + return err; +} + +/* + * Detects the endpoints and ports of Yamaha devices. + */ +static int snd_usbmidi_detect_yamaha(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *endpoint) +{ + struct usb_interface *intf; + struct usb_host_interface *hostif; + struct usb_interface_descriptor *intfd; + uint8_t *cs_desc; + + intf = umidi->iface; + if (!intf) + return -ENOENT; + hostif = intf->altsetting; + intfd = get_iface_desc(hostif); + if (intfd->bNumEndpoints < 1) + return -ENOENT; + + /* + * For each port there is one MIDI_IN/OUT_JACK descriptor, not + * necessarily with any useful contents. So simply count 'em. + */ + for (cs_desc = hostif->extra; + cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; + cs_desc += cs_desc[0]) { + if (cs_desc[1] == USB_DT_CS_INTERFACE) { + if (cs_desc[2] == UAC_MIDI_IN_JACK) + endpoint->in_cables = + (endpoint->in_cables << 1) | 1; + else if (cs_desc[2] == UAC_MIDI_OUT_JACK) + endpoint->out_cables = + (endpoint->out_cables << 1) | 1; + } + } + if (!endpoint->in_cables && !endpoint->out_cables) + return -ENOENT; + + return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); +} + +/* + * Detects the endpoints and ports of Roland devices. + */ +static int snd_usbmidi_detect_roland(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *endpoint) +{ + struct usb_interface *intf; + struct usb_host_interface *hostif; + u8 *cs_desc; + + intf = umidi->iface; + if (!intf) + return -ENOENT; + hostif = intf->altsetting; + /* + * Some devices have a descriptor <06 24 F1 02 <inputs> <outputs>>, + * some have standard class descriptors, or both kinds, or neither. + */ + for (cs_desc = hostif->extra; + cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; + cs_desc += cs_desc[0]) { + if (cs_desc[0] >= 6 && + cs_desc[1] == USB_DT_CS_INTERFACE && + cs_desc[2] == 0xf1 && + cs_desc[3] == 0x02) { + if (cs_desc[4] > 0x10 || cs_desc[5] > 0x10) + continue; + endpoint->in_cables = (1 << cs_desc[4]) - 1; + endpoint->out_cables = (1 << cs_desc[5]) - 1; + return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); + } else if (cs_desc[0] >= 7 && + cs_desc[1] == USB_DT_CS_INTERFACE && + cs_desc[2] == UAC_HEADER) { + return snd_usbmidi_get_ms_info(umidi, endpoint); + } + } + + return -ENODEV; +} + +/* + * Creates the endpoints and their ports for Midiman devices. + */ +static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi *umidi, + struct snd_usb_midi_endpoint_info *endpoint) +{ + struct snd_usb_midi_endpoint_info ep_info; + struct usb_interface *intf; + struct usb_host_interface *hostif; + struct usb_interface_descriptor *intfd; + struct usb_endpoint_descriptor *epd; + int cable, err; + + intf = umidi->iface; + if (!intf) + return -ENOENT; + hostif = intf->altsetting; + intfd = get_iface_desc(hostif); + /* + * The various MidiSport devices have more or less random endpoint + * numbers, so we have to identify the endpoints by their index in + * the descriptor array, like the driver for that other OS does. + * + * There is one interrupt input endpoint for all input ports, one + * bulk output endpoint for even-numbered ports, and one for odd- + * numbered ports. Both bulk output endpoints have corresponding + * input bulk endpoints (at indices 1 and 3) which aren't used. + */ + if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) { + dev_dbg(&umidi->dev->dev, "not enough endpoints\n"); + return -ENOENT; + } + + epd = get_endpoint(hostif, 0); + if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) { + dev_dbg(&umidi->dev->dev, "endpoint[0] isn't interrupt\n"); + return -ENXIO; + } + epd = get_endpoint(hostif, 2); + if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) { + dev_dbg(&umidi->dev->dev, "endpoint[2] isn't bulk output\n"); + return -ENXIO; + } + if (endpoint->out_cables > 0x0001) { + epd = get_endpoint(hostif, 4); + if (!usb_endpoint_dir_out(epd) || + !usb_endpoint_xfer_bulk(epd)) { + dev_dbg(&umidi->dev->dev, + "endpoint[4] isn't bulk output\n"); + return -ENXIO; + } + } + + ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK; + ep_info.out_interval = 0; + ep_info.out_cables = endpoint->out_cables & 0x5555; + err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, + &umidi->endpoints[0]); + if (err < 0) + return err; + + ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK; + ep_info.in_interval = get_endpoint(hostif, 0)->bInterval; + ep_info.in_cables = endpoint->in_cables; + err = snd_usbmidi_in_endpoint_create(umidi, &ep_info, + &umidi->endpoints[0]); + if (err < 0) + return err; + + if (endpoint->out_cables > 0x0001) { + ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK; + ep_info.out_cables = endpoint->out_cables & 0xaaaa; + err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, + &umidi->endpoints[1]); + if (err < 0) + return err; + } + + for (cable = 0; cable < 0x10; ++cable) { + if (endpoint->out_cables & (1 << cable)) + snd_usbmidi_init_substream(umidi, + SNDRV_RAWMIDI_STREAM_OUTPUT, + cable, + -1 /* prevent trying to find jack */, + &umidi->endpoints[cable & 1].out->ports[cable].substream); + if (endpoint->in_cables & (1 << cable)) + snd_usbmidi_init_substream(umidi, + SNDRV_RAWMIDI_STREAM_INPUT, + cable, + -1 /* prevent trying to find jack */, + &umidi->endpoints[0].in->ports[cable].substream); + } + return 0; +} + +static const struct snd_rawmidi_global_ops snd_usbmidi_ops = { + .get_port_info = snd_usbmidi_get_port_info, +}; + +static int snd_usbmidi_create_rawmidi(struct snd_usb_midi *umidi, + int out_ports, int in_ports) +{ + struct snd_rawmidi *rmidi; + int err; + + err = snd_rawmidi_new(umidi->card, "USB MIDI", + umidi->next_midi_device++, + out_ports, in_ports, &rmidi); + if (err < 0) + return err; + strcpy(rmidi->name, umidi->card->shortname); + rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->ops = &snd_usbmidi_ops; + rmidi->private_data = umidi; + rmidi->private_free = snd_usbmidi_rawmidi_free; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &snd_usbmidi_output_ops); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &snd_usbmidi_input_ops); + + umidi->rmidi = rmidi; + return 0; +} + +/* + * Temporarily stop input. + */ +void snd_usbmidi_input_stop(struct list_head *p) +{ + struct snd_usb_midi *umidi; + unsigned int i, j; + + umidi = list_entry(p, struct snd_usb_midi, list); + if (!umidi->input_running) + return; + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { + struct snd_usb_midi_endpoint *ep = &umidi->endpoints[i]; + if (ep->in) + for (j = 0; j < INPUT_URBS; ++j) + usb_kill_urb(ep->in->urbs[j]); + } + umidi->input_running = 0; +} +EXPORT_SYMBOL(snd_usbmidi_input_stop); + +static void snd_usbmidi_input_start_ep(struct snd_usb_midi *umidi, + struct snd_usb_midi_in_endpoint *ep) +{ + unsigned int i; + unsigned long flags; + + if (!ep) + return; + for (i = 0; i < INPUT_URBS; ++i) { + struct urb *urb = ep->urbs[i]; + spin_lock_irqsave(&umidi->disc_lock, flags); + if (!atomic_read(&urb->use_count)) { + urb->dev = ep->umidi->dev; + snd_usbmidi_submit_urb(urb, GFP_ATOMIC); + } + spin_unlock_irqrestore(&umidi->disc_lock, flags); + } +} + +/* + * Resume input after a call to snd_usbmidi_input_stop(). + */ +void snd_usbmidi_input_start(struct list_head *p) +{ + struct snd_usb_midi *umidi; + int i; + + umidi = list_entry(p, struct snd_usb_midi, list); + if (umidi->input_running || !umidi->opened[1]) + return; + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) + snd_usbmidi_input_start_ep(umidi, umidi->endpoints[i].in); + umidi->input_running = 1; +} +EXPORT_SYMBOL(snd_usbmidi_input_start); + +/* + * Prepare for suspend. Typically called from the USB suspend callback. + */ +void snd_usbmidi_suspend(struct list_head *p) +{ + struct snd_usb_midi *umidi; + + umidi = list_entry(p, struct snd_usb_midi, list); + mutex_lock(&umidi->mutex); + snd_usbmidi_input_stop(p); + mutex_unlock(&umidi->mutex); +} +EXPORT_SYMBOL(snd_usbmidi_suspend); + +/* + * Resume. Typically called from the USB resume callback. + */ +void snd_usbmidi_resume(struct list_head *p) +{ + struct snd_usb_midi *umidi; + + umidi = list_entry(p, struct snd_usb_midi, list); + mutex_lock(&umidi->mutex); + snd_usbmidi_input_start(p); + mutex_unlock(&umidi->mutex); +} +EXPORT_SYMBOL(snd_usbmidi_resume); + +/* + * Creates and registers everything needed for a MIDI streaming interface. + */ +int __snd_usbmidi_create(struct snd_card *card, + struct usb_interface *iface, + struct list_head *midi_list, + const struct snd_usb_audio_quirk *quirk, + unsigned int usb_id) +{ + struct snd_usb_midi *umidi; + struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS]; + int out_ports, in_ports; + int i, err; + + umidi = kzalloc(sizeof(*umidi), GFP_KERNEL); + if (!umidi) + return -ENOMEM; + umidi->dev = interface_to_usbdev(iface); + umidi->card = card; + umidi->iface = iface; + umidi->quirk = quirk; + umidi->usb_protocol_ops = &snd_usbmidi_standard_ops; + spin_lock_init(&umidi->disc_lock); + init_rwsem(&umidi->disc_rwsem); + mutex_init(&umidi->mutex); + if (!usb_id) + usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor), + le16_to_cpu(umidi->dev->descriptor.idProduct)); + umidi->usb_id = usb_id; + timer_setup(&umidi->error_timer, snd_usbmidi_error_timer, 0); + + /* detect the endpoint(s) to use */ + memset(endpoints, 0, sizeof(endpoints)); + switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) { + case QUIRK_MIDI_STANDARD_INTERFACE: + err = snd_usbmidi_get_ms_info(umidi, endpoints); + if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */ + umidi->usb_protocol_ops = + &snd_usbmidi_maudio_broken_running_status_ops; + break; + case QUIRK_MIDI_US122L: + umidi->usb_protocol_ops = &snd_usbmidi_122l_ops; + fallthrough; + case QUIRK_MIDI_FIXED_ENDPOINT: + memcpy(&endpoints[0], quirk->data, + sizeof(struct snd_usb_midi_endpoint_info)); + err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); + break; + case QUIRK_MIDI_YAMAHA: + err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]); + break; + case QUIRK_MIDI_ROLAND: + err = snd_usbmidi_detect_roland(umidi, &endpoints[0]); + break; + case QUIRK_MIDI_MIDIMAN: + umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops; + memcpy(&endpoints[0], quirk->data, + sizeof(struct snd_usb_midi_endpoint_info)); + err = 0; + break; + case QUIRK_MIDI_NOVATION: + umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; + err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); + break; + case QUIRK_MIDI_RAW_BYTES: + umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; + /* + * Interface 1 contains isochronous endpoints, but with the same + * numbers as in interface 0. Since it is interface 1 that the + * USB core has most recently seen, these descriptors are now + * associated with the endpoint numbers. This will foul up our + * attempts to submit bulk/interrupt URBs to the endpoints in + * interface 0, so we have to make sure that the USB core looks + * again at interface 0 by calling usb_set_interface() on it. + */ + if (umidi->usb_id == USB_ID(0x07fd, 0x0001)) /* MOTU Fastlane */ + usb_set_interface(umidi->dev, 0, 0); + err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); + break; + case QUIRK_MIDI_EMAGIC: + umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops; + memcpy(&endpoints[0], quirk->data, + sizeof(struct snd_usb_midi_endpoint_info)); + err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); + break; + case QUIRK_MIDI_CME: + umidi->usb_protocol_ops = &snd_usbmidi_cme_ops; + err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); + break; + case QUIRK_MIDI_AKAI: + umidi->usb_protocol_ops = &snd_usbmidi_akai_ops; + err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); + /* endpoint 1 is input-only */ + endpoints[1].out_cables = 0; + break; + case QUIRK_MIDI_FTDI: + umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops; + + /* set baud rate to 31250 (48 MHz / 16 / 96) */ + err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0), + 3, 0x40, 0x60, 0, NULL, 0, 1000); + if (err < 0) + break; + + err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); + break; + case QUIRK_MIDI_CH345: + umidi->usb_protocol_ops = &snd_usbmidi_ch345_broken_sysex_ops; + err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); + break; + default: + dev_err(&umidi->dev->dev, "invalid quirk type %d\n", + quirk->type); + err = -ENXIO; + break; + } + if (err < 0) + goto free_midi; + + /* create rawmidi device */ + out_ports = 0; + in_ports = 0; + for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { + out_ports += hweight16(endpoints[i].out_cables); + in_ports += hweight16(endpoints[i].in_cables); + } + err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); + if (err < 0) + goto free_midi; + + /* create endpoint/port structures */ + if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN) + err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]); + else + err = snd_usbmidi_create_endpoints(umidi, endpoints); + if (err < 0) + goto exit; + + usb_autopm_get_interface_no_resume(umidi->iface); + + list_add_tail(&umidi->list, midi_list); + return 0; + +free_midi: + kfree(umidi); +exit: + return err; +} +EXPORT_SYMBOL(__snd_usbmidi_create); diff --git a/sound/usb/midi.h b/sound/usb/midi.h new file mode 100644 index 000000000..3f153195c --- /dev/null +++ b/sound/usb/midi.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBMIDI_H +#define __USBMIDI_H + +/* maximum number of endpoints per interface */ +#define MIDI_MAX_ENDPOINTS 2 + +/* data for QUIRK_MIDI_FIXED_ENDPOINT */ +struct snd_usb_midi_endpoint_info { + int8_t out_ep; /* ep number, 0 autodetect */ + uint8_t out_interval; /* interval for interrupt endpoints */ + int8_t in_ep; + uint8_t in_interval; + uint16_t out_cables; /* bitmask */ + uint16_t in_cables; /* bitmask */ + int16_t assoc_in_jacks[16]; + int16_t assoc_out_jacks[16]; +}; + +/* for QUIRK_MIDI_YAMAHA, data is NULL */ + +/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info + * structure (out_cables and in_cables only) */ + +/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk + * structures, terminated with .ifnum = -1 */ + +/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */ + +/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */ + +/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */ + +/* for QUIRK_IGNORE_INTERFACE, data is NULL */ + +/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */ + +/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info + * structure (out_cables and in_cables only) */ + +/* for QUIRK_MIDI_CME, data is NULL */ + +/* for QUIRK_MIDI_AKAI, data is NULL */ + +int __snd_usbmidi_create(struct snd_card *card, + struct usb_interface *iface, + struct list_head *midi_list, + const struct snd_usb_audio_quirk *quirk, + unsigned int usb_id); + +static inline int snd_usbmidi_create(struct snd_card *card, + struct usb_interface *iface, + struct list_head *midi_list, + const struct snd_usb_audio_quirk *quirk) +{ + return __snd_usbmidi_create(card, iface, midi_list, quirk, 0); +} + +void snd_usbmidi_input_stop(struct list_head *p); +void snd_usbmidi_input_start(struct list_head *p); +void snd_usbmidi_disconnect(struct list_head *p); +void snd_usbmidi_suspend(struct list_head *p); +void snd_usbmidi_resume(struct list_head *p); + +#endif /* __USBMIDI_H */ diff --git a/sound/usb/misc/Makefile b/sound/usb/misc/Makefile new file mode 100644 index 000000000..068ecd7bc --- /dev/null +++ b/sound/usb/misc/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only +snd-ua101-objs := ua101.o +obj-$(CONFIG_SND_USB_UA101) += snd-ua101.o diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c new file mode 100644 index 000000000..4f6b20ed2 --- /dev/null +++ b/sound/usb/misc/ua101.c @@ -0,0 +1,1357 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Edirol UA-101/UA-1000 driver + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include "../usbaudio.h" +#include "../midi.h" + +MODULE_DESCRIPTION("Edirol UA-101/1000 driver"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); + +/* + * Should not be lower than the minimum scheduling delay of the host + * controller. Some Intel controllers need more than one frame; as long as + * that driver doesn't tell us about this, use 1.5 frames just to be sure. + */ +#define MIN_QUEUE_LENGTH 12 +/* Somewhat random. */ +#define MAX_QUEUE_LENGTH 30 +/* + * This magic value optimizes memory usage efficiency for the UA-101's packet + * sizes at all sample rates, taking into account the stupid cache pool sizes + * that usb_alloc_coherent() uses. + */ +#define DEFAULT_QUEUE_LENGTH 21 + +#define MAX_PACKET_SIZE 672 /* hardware specific */ +#define MAX_MEMORY_BUFFERS DIV_ROUND_UP(MAX_QUEUE_LENGTH, \ + PAGE_SIZE / MAX_PACKET_SIZE) + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; +static unsigned int queue_length = 21; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "card index"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string"); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "enable card"); +module_param(queue_length, uint, 0644); +MODULE_PARM_DESC(queue_length, "USB queue length in microframes, " + __stringify(MIN_QUEUE_LENGTH)"-"__stringify(MAX_QUEUE_LENGTH)); + +enum { + INTF_PLAYBACK, + INTF_CAPTURE, + INTF_MIDI, + + INTF_COUNT +}; + +/* bits in struct ua101::states */ +enum { + USB_CAPTURE_RUNNING, + USB_PLAYBACK_RUNNING, + ALSA_CAPTURE_OPEN, + ALSA_PLAYBACK_OPEN, + ALSA_CAPTURE_RUNNING, + ALSA_PLAYBACK_RUNNING, + CAPTURE_URB_COMPLETED, + PLAYBACK_URB_COMPLETED, + DISCONNECTED, +}; + +struct ua101 { + struct usb_device *dev; + struct snd_card *card; + struct usb_interface *intf[INTF_COUNT]; + int card_index; + struct snd_pcm *pcm; + struct list_head midi_list; + u64 format_bit; + unsigned int rate; + unsigned int packets_per_second; + spinlock_t lock; + struct mutex mutex; + unsigned long states; + + /* FIFO to synchronize playback rate to capture rate */ + unsigned int rate_feedback_start; + unsigned int rate_feedback_count; + u8 rate_feedback[MAX_QUEUE_LENGTH]; + + struct list_head ready_playback_urbs; + struct work_struct playback_work; + wait_queue_head_t alsa_capture_wait; + wait_queue_head_t rate_feedback_wait; + wait_queue_head_t alsa_playback_wait; + struct ua101_stream { + struct snd_pcm_substream *substream; + unsigned int usb_pipe; + unsigned int channels; + unsigned int frame_bytes; + unsigned int max_packet_bytes; + unsigned int period_pos; + unsigned int buffer_pos; + unsigned int queue_length; + struct ua101_urb { + struct urb urb; + struct usb_iso_packet_descriptor iso_frame_desc[1]; + struct list_head ready_list; + } *urbs[MAX_QUEUE_LENGTH]; + struct { + unsigned int size; + void *addr; + dma_addr_t dma; + } buffers[MAX_MEMORY_BUFFERS]; + } capture, playback; +}; + +static DEFINE_MUTEX(devices_mutex); +static unsigned int devices_used; +static struct usb_driver ua101_driver; + +static void abort_alsa_playback(struct ua101 *ua); +static void abort_alsa_capture(struct ua101 *ua); + +static const char *usb_error_string(int err) +{ + switch (err) { + case -ENODEV: + return "no device"; + case -ENOENT: + return "endpoint not enabled"; + case -EPIPE: + return "endpoint stalled"; + case -ENOSPC: + return "not enough bandwidth"; + case -ESHUTDOWN: + return "device disabled"; + case -EHOSTUNREACH: + return "device suspended"; + case -EINVAL: + case -EAGAIN: + case -EFBIG: + case -EMSGSIZE: + return "internal error"; + default: + return "unknown error"; + } +} + +static void abort_usb_capture(struct ua101 *ua) +{ + if (test_and_clear_bit(USB_CAPTURE_RUNNING, &ua->states)) { + wake_up(&ua->alsa_capture_wait); + wake_up(&ua->rate_feedback_wait); + } +} + +static void abort_usb_playback(struct ua101 *ua) +{ + if (test_and_clear_bit(USB_PLAYBACK_RUNNING, &ua->states)) + wake_up(&ua->alsa_playback_wait); +} + +static void playback_urb_complete(struct urb *usb_urb) +{ + struct ua101_urb *urb = (struct ua101_urb *)usb_urb; + struct ua101 *ua = urb->urb.context; + unsigned long flags; + + if (unlikely(urb->urb.status == -ENOENT || /* unlinked */ + urb->urb.status == -ENODEV || /* device removed */ + urb->urb.status == -ECONNRESET || /* unlinked */ + urb->urb.status == -ESHUTDOWN)) { /* device disabled */ + abort_usb_playback(ua); + abort_alsa_playback(ua); + return; + } + + if (test_bit(USB_PLAYBACK_RUNNING, &ua->states)) { + /* append URB to FIFO */ + spin_lock_irqsave(&ua->lock, flags); + list_add_tail(&urb->ready_list, &ua->ready_playback_urbs); + if (ua->rate_feedback_count > 0) + queue_work(system_highpri_wq, &ua->playback_work); + ua->playback.substream->runtime->delay -= + urb->urb.iso_frame_desc[0].length / + ua->playback.frame_bytes; + spin_unlock_irqrestore(&ua->lock, flags); + } +} + +static void first_playback_urb_complete(struct urb *urb) +{ + struct ua101 *ua = urb->context; + + urb->complete = playback_urb_complete; + playback_urb_complete(urb); + + set_bit(PLAYBACK_URB_COMPLETED, &ua->states); + wake_up(&ua->alsa_playback_wait); +} + +/* copy data from the ALSA ring buffer into the URB buffer */ +static bool copy_playback_data(struct ua101_stream *stream, struct urb *urb, + unsigned int frames) +{ + struct snd_pcm_runtime *runtime; + unsigned int frame_bytes, frames1; + const u8 *source; + + runtime = stream->substream->runtime; + frame_bytes = stream->frame_bytes; + source = runtime->dma_area + stream->buffer_pos * frame_bytes; + if (stream->buffer_pos + frames <= runtime->buffer_size) { + memcpy(urb->transfer_buffer, source, frames * frame_bytes); + } else { + /* wrap around at end of ring buffer */ + frames1 = runtime->buffer_size - stream->buffer_pos; + memcpy(urb->transfer_buffer, source, frames1 * frame_bytes); + memcpy(urb->transfer_buffer + frames1 * frame_bytes, + runtime->dma_area, (frames - frames1) * frame_bytes); + } + + stream->buffer_pos += frames; + if (stream->buffer_pos >= runtime->buffer_size) + stream->buffer_pos -= runtime->buffer_size; + stream->period_pos += frames; + if (stream->period_pos >= runtime->period_size) { + stream->period_pos -= runtime->period_size; + return true; + } + return false; +} + +static inline void add_with_wraparound(struct ua101 *ua, + unsigned int *value, unsigned int add) +{ + *value += add; + if (*value >= ua->playback.queue_length) + *value -= ua->playback.queue_length; +} + +static void playback_work(struct work_struct *work) +{ + struct ua101 *ua = container_of(work, struct ua101, playback_work); + unsigned long flags; + unsigned int frames; + struct ua101_urb *urb; + bool do_period_elapsed = false; + int err; + + if (unlikely(!test_bit(USB_PLAYBACK_RUNNING, &ua->states))) + return; + + /* + * Synchronizing the playback rate to the capture rate is done by using + * the same sequence of packet sizes for both streams. + * Submitting a playback URB therefore requires both a ready URB and + * the size of the corresponding capture packet, i.e., both playback + * and capture URBs must have been completed. Since the USB core does + * not guarantee that playback and capture complete callbacks are + * called alternately, we use two FIFOs for packet sizes and read URBs; + * submitting playback URBs is possible as long as both FIFOs are + * nonempty. + */ + spin_lock_irqsave(&ua->lock, flags); + while (ua->rate_feedback_count > 0 && + !list_empty(&ua->ready_playback_urbs)) { + /* take packet size out of FIFO */ + frames = ua->rate_feedback[ua->rate_feedback_start]; + add_with_wraparound(ua, &ua->rate_feedback_start, 1); + ua->rate_feedback_count--; + + /* take URB out of FIFO */ + urb = list_first_entry(&ua->ready_playback_urbs, + struct ua101_urb, ready_list); + list_del(&urb->ready_list); + + /* fill packet with data or silence */ + urb->urb.iso_frame_desc[0].length = + frames * ua->playback.frame_bytes; + if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states)) + do_period_elapsed |= copy_playback_data(&ua->playback, + &urb->urb, + frames); + else + memset(urb->urb.transfer_buffer, 0, + urb->urb.iso_frame_desc[0].length); + + /* and off you go ... */ + err = usb_submit_urb(&urb->urb, GFP_ATOMIC); + if (unlikely(err < 0)) { + spin_unlock_irqrestore(&ua->lock, flags); + abort_usb_playback(ua); + abort_alsa_playback(ua); + dev_err(&ua->dev->dev, "USB request error %d: %s\n", + err, usb_error_string(err)); + return; + } + ua->playback.substream->runtime->delay += frames; + } + spin_unlock_irqrestore(&ua->lock, flags); + if (do_period_elapsed) + snd_pcm_period_elapsed(ua->playback.substream); +} + +/* copy data from the URB buffer into the ALSA ring buffer */ +static bool copy_capture_data(struct ua101_stream *stream, struct urb *urb, + unsigned int frames) +{ + struct snd_pcm_runtime *runtime; + unsigned int frame_bytes, frames1; + u8 *dest; + + runtime = stream->substream->runtime; + frame_bytes = stream->frame_bytes; + dest = runtime->dma_area + stream->buffer_pos * frame_bytes; + if (stream->buffer_pos + frames <= runtime->buffer_size) { + memcpy(dest, urb->transfer_buffer, frames * frame_bytes); + } else { + /* wrap around at end of ring buffer */ + frames1 = runtime->buffer_size - stream->buffer_pos; + memcpy(dest, urb->transfer_buffer, frames1 * frame_bytes); + memcpy(runtime->dma_area, + urb->transfer_buffer + frames1 * frame_bytes, + (frames - frames1) * frame_bytes); + } + + stream->buffer_pos += frames; + if (stream->buffer_pos >= runtime->buffer_size) + stream->buffer_pos -= runtime->buffer_size; + stream->period_pos += frames; + if (stream->period_pos >= runtime->period_size) { + stream->period_pos -= runtime->period_size; + return true; + } + return false; +} + +static void capture_urb_complete(struct urb *urb) +{ + struct ua101 *ua = urb->context; + struct ua101_stream *stream = &ua->capture; + unsigned long flags; + unsigned int frames, write_ptr; + bool do_period_elapsed; + int err; + + if (unlikely(urb->status == -ENOENT || /* unlinked */ + urb->status == -ENODEV || /* device removed */ + urb->status == -ECONNRESET || /* unlinked */ + urb->status == -ESHUTDOWN)) /* device disabled */ + goto stream_stopped; + + if (urb->status >= 0 && urb->iso_frame_desc[0].status >= 0) + frames = urb->iso_frame_desc[0].actual_length / + stream->frame_bytes; + else + frames = 0; + + spin_lock_irqsave(&ua->lock, flags); + + if (frames > 0 && test_bit(ALSA_CAPTURE_RUNNING, &ua->states)) + do_period_elapsed = copy_capture_data(stream, urb, frames); + else + do_period_elapsed = false; + + if (test_bit(USB_CAPTURE_RUNNING, &ua->states)) { + err = usb_submit_urb(urb, GFP_ATOMIC); + if (unlikely(err < 0)) { + spin_unlock_irqrestore(&ua->lock, flags); + dev_err(&ua->dev->dev, "USB request error %d: %s\n", + err, usb_error_string(err)); + goto stream_stopped; + } + + /* append packet size to FIFO */ + write_ptr = ua->rate_feedback_start; + add_with_wraparound(ua, &write_ptr, ua->rate_feedback_count); + ua->rate_feedback[write_ptr] = frames; + if (ua->rate_feedback_count < ua->playback.queue_length) { + ua->rate_feedback_count++; + if (ua->rate_feedback_count == + ua->playback.queue_length) + wake_up(&ua->rate_feedback_wait); + } else { + /* + * Ring buffer overflow; this happens when the playback + * stream is not running. Throw away the oldest entry, + * so that the playback stream, when it starts, sees + * the most recent packet sizes. + */ + add_with_wraparound(ua, &ua->rate_feedback_start, 1); + } + if (test_bit(USB_PLAYBACK_RUNNING, &ua->states) && + !list_empty(&ua->ready_playback_urbs)) + queue_work(system_highpri_wq, &ua->playback_work); + } + + spin_unlock_irqrestore(&ua->lock, flags); + + if (do_period_elapsed) + snd_pcm_period_elapsed(stream->substream); + + return; + +stream_stopped: + abort_usb_playback(ua); + abort_usb_capture(ua); + abort_alsa_playback(ua); + abort_alsa_capture(ua); +} + +static void first_capture_urb_complete(struct urb *urb) +{ + struct ua101 *ua = urb->context; + + urb->complete = capture_urb_complete; + capture_urb_complete(urb); + + set_bit(CAPTURE_URB_COMPLETED, &ua->states); + wake_up(&ua->alsa_capture_wait); +} + +static int submit_stream_urbs(struct ua101 *ua, struct ua101_stream *stream) +{ + unsigned int i; + + for (i = 0; i < stream->queue_length; ++i) { + int err = usb_submit_urb(&stream->urbs[i]->urb, GFP_KERNEL); + if (err < 0) { + dev_err(&ua->dev->dev, "USB request error %d: %s\n", + err, usb_error_string(err)); + return err; + } + } + return 0; +} + +static void kill_stream_urbs(struct ua101_stream *stream) +{ + unsigned int i; + + for (i = 0; i < stream->queue_length; ++i) + if (stream->urbs[i]) + usb_kill_urb(&stream->urbs[i]->urb); +} + +static int enable_iso_interface(struct ua101 *ua, unsigned int intf_index) +{ + struct usb_host_interface *alts; + + alts = ua->intf[intf_index]->cur_altsetting; + if (alts->desc.bAlternateSetting != 1) { + int err = usb_set_interface(ua->dev, + alts->desc.bInterfaceNumber, 1); + if (err < 0) { + dev_err(&ua->dev->dev, + "cannot initialize interface; error %d: %s\n", + err, usb_error_string(err)); + return err; + } + } + return 0; +} + +static void disable_iso_interface(struct ua101 *ua, unsigned int intf_index) +{ + struct usb_host_interface *alts; + + if (!ua->intf[intf_index]) + return; + + alts = ua->intf[intf_index]->cur_altsetting; + if (alts->desc.bAlternateSetting != 0) { + int err = usb_set_interface(ua->dev, + alts->desc.bInterfaceNumber, 0); + if (err < 0 && !test_bit(DISCONNECTED, &ua->states)) + dev_warn(&ua->dev->dev, + "interface reset failed; error %d: %s\n", + err, usb_error_string(err)); + } +} + +static void stop_usb_capture(struct ua101 *ua) +{ + clear_bit(USB_CAPTURE_RUNNING, &ua->states); + + kill_stream_urbs(&ua->capture); + + disable_iso_interface(ua, INTF_CAPTURE); +} + +static int start_usb_capture(struct ua101 *ua) +{ + int err; + + if (test_bit(DISCONNECTED, &ua->states)) + return -ENODEV; + + if (test_bit(USB_CAPTURE_RUNNING, &ua->states)) + return 0; + + kill_stream_urbs(&ua->capture); + + err = enable_iso_interface(ua, INTF_CAPTURE); + if (err < 0) + return err; + + clear_bit(CAPTURE_URB_COMPLETED, &ua->states); + ua->capture.urbs[0]->urb.complete = first_capture_urb_complete; + ua->rate_feedback_start = 0; + ua->rate_feedback_count = 0; + + set_bit(USB_CAPTURE_RUNNING, &ua->states); + err = submit_stream_urbs(ua, &ua->capture); + if (err < 0) + stop_usb_capture(ua); + return err; +} + +static void stop_usb_playback(struct ua101 *ua) +{ + clear_bit(USB_PLAYBACK_RUNNING, &ua->states); + + kill_stream_urbs(&ua->playback); + + cancel_work_sync(&ua->playback_work); + + disable_iso_interface(ua, INTF_PLAYBACK); +} + +static int start_usb_playback(struct ua101 *ua) +{ + unsigned int i, frames; + struct urb *urb; + int err = 0; + + if (test_bit(DISCONNECTED, &ua->states)) + return -ENODEV; + + if (test_bit(USB_PLAYBACK_RUNNING, &ua->states)) + return 0; + + kill_stream_urbs(&ua->playback); + cancel_work_sync(&ua->playback_work); + + err = enable_iso_interface(ua, INTF_PLAYBACK); + if (err < 0) + return err; + + clear_bit(PLAYBACK_URB_COMPLETED, &ua->states); + ua->playback.urbs[0]->urb.complete = + first_playback_urb_complete; + spin_lock_irq(&ua->lock); + INIT_LIST_HEAD(&ua->ready_playback_urbs); + spin_unlock_irq(&ua->lock); + + /* + * We submit the initial URBs all at once, so we have to wait for the + * packet size FIFO to be full. + */ + wait_event(ua->rate_feedback_wait, + ua->rate_feedback_count >= ua->playback.queue_length || + !test_bit(USB_CAPTURE_RUNNING, &ua->states) || + test_bit(DISCONNECTED, &ua->states)); + if (test_bit(DISCONNECTED, &ua->states)) { + stop_usb_playback(ua); + return -ENODEV; + } + if (!test_bit(USB_CAPTURE_RUNNING, &ua->states)) { + stop_usb_playback(ua); + return -EIO; + } + + for (i = 0; i < ua->playback.queue_length; ++i) { + /* all initial URBs contain silence */ + spin_lock_irq(&ua->lock); + frames = ua->rate_feedback[ua->rate_feedback_start]; + add_with_wraparound(ua, &ua->rate_feedback_start, 1); + ua->rate_feedback_count--; + spin_unlock_irq(&ua->lock); + urb = &ua->playback.urbs[i]->urb; + urb->iso_frame_desc[0].length = + frames * ua->playback.frame_bytes; + memset(urb->transfer_buffer, 0, + urb->iso_frame_desc[0].length); + } + + set_bit(USB_PLAYBACK_RUNNING, &ua->states); + err = submit_stream_urbs(ua, &ua->playback); + if (err < 0) + stop_usb_playback(ua); + return err; +} + +static void abort_alsa_capture(struct ua101 *ua) +{ + if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states)) + snd_pcm_stop_xrun(ua->capture.substream); +} + +static void abort_alsa_playback(struct ua101 *ua) +{ + if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states)) + snd_pcm_stop_xrun(ua->playback.substream); +} + +static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream, + unsigned int channels) +{ + int err; + + substream->runtime->hw.info = + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_FIFO_IN_FRAMES; + substream->runtime->hw.formats = ua->format_bit; + substream->runtime->hw.rates = snd_pcm_rate_to_rate_bit(ua->rate); + substream->runtime->hw.rate_min = ua->rate; + substream->runtime->hw.rate_max = ua->rate; + substream->runtime->hw.channels_min = channels; + substream->runtime->hw.channels_max = channels; + substream->runtime->hw.buffer_bytes_max = 45000 * 1024; + substream->runtime->hw.period_bytes_min = 1; + substream->runtime->hw.period_bytes_max = UINT_MAX; + substream->runtime->hw.periods_min = 2; + substream->runtime->hw.periods_max = UINT_MAX; + err = snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_PERIOD_TIME, + 1500000 / ua->packets_per_second, + UINT_MAX); + if (err < 0) + return err; + err = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 32, 24); + return err; +} + +static int capture_pcm_open(struct snd_pcm_substream *substream) +{ + struct ua101 *ua = substream->private_data; + int err; + + ua->capture.substream = substream; + err = set_stream_hw(ua, substream, ua->capture.channels); + if (err < 0) + return err; + substream->runtime->hw.fifo_size = + DIV_ROUND_CLOSEST(ua->rate, ua->packets_per_second); + substream->runtime->delay = substream->runtime->hw.fifo_size; + + mutex_lock(&ua->mutex); + err = start_usb_capture(ua); + if (err >= 0) + set_bit(ALSA_CAPTURE_OPEN, &ua->states); + mutex_unlock(&ua->mutex); + return err; +} + +static int playback_pcm_open(struct snd_pcm_substream *substream) +{ + struct ua101 *ua = substream->private_data; + int err; + + ua->playback.substream = substream; + err = set_stream_hw(ua, substream, ua->playback.channels); + if (err < 0) + return err; + substream->runtime->hw.fifo_size = + DIV_ROUND_CLOSEST(ua->rate * ua->playback.queue_length, + ua->packets_per_second); + + mutex_lock(&ua->mutex); + err = start_usb_capture(ua); + if (err < 0) + goto error; + err = start_usb_playback(ua); + if (err < 0) { + if (!test_bit(ALSA_CAPTURE_OPEN, &ua->states)) + stop_usb_capture(ua); + goto error; + } + set_bit(ALSA_PLAYBACK_OPEN, &ua->states); +error: + mutex_unlock(&ua->mutex); + return err; +} + +static int capture_pcm_close(struct snd_pcm_substream *substream) +{ + struct ua101 *ua = substream->private_data; + + mutex_lock(&ua->mutex); + clear_bit(ALSA_CAPTURE_OPEN, &ua->states); + if (!test_bit(ALSA_PLAYBACK_OPEN, &ua->states)) + stop_usb_capture(ua); + mutex_unlock(&ua->mutex); + return 0; +} + +static int playback_pcm_close(struct snd_pcm_substream *substream) +{ + struct ua101 *ua = substream->private_data; + + mutex_lock(&ua->mutex); + stop_usb_playback(ua); + clear_bit(ALSA_PLAYBACK_OPEN, &ua->states); + if (!test_bit(ALSA_CAPTURE_OPEN, &ua->states)) + stop_usb_capture(ua); + mutex_unlock(&ua->mutex); + return 0; +} + +static int capture_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct ua101 *ua = substream->private_data; + int err; + + mutex_lock(&ua->mutex); + err = start_usb_capture(ua); + mutex_unlock(&ua->mutex); + return err; +} + +static int playback_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct ua101 *ua = substream->private_data; + int err; + + mutex_lock(&ua->mutex); + err = start_usb_capture(ua); + if (err >= 0) + err = start_usb_playback(ua); + mutex_unlock(&ua->mutex); + return err; +} + +static int capture_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct ua101 *ua = substream->private_data; + int err; + + mutex_lock(&ua->mutex); + err = start_usb_capture(ua); + mutex_unlock(&ua->mutex); + if (err < 0) + return err; + + /* + * The EHCI driver schedules the first packet of an iso stream at 10 ms + * in the future, i.e., no data is actually captured for that long. + * Take the wait here so that the stream is known to be actually + * running when the start trigger has been called. + */ + wait_event(ua->alsa_capture_wait, + test_bit(CAPTURE_URB_COMPLETED, &ua->states) || + !test_bit(USB_CAPTURE_RUNNING, &ua->states)); + if (test_bit(DISCONNECTED, &ua->states)) + return -ENODEV; + if (!test_bit(USB_CAPTURE_RUNNING, &ua->states)) + return -EIO; + + ua->capture.period_pos = 0; + ua->capture.buffer_pos = 0; + return 0; +} + +static int playback_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct ua101 *ua = substream->private_data; + int err; + + mutex_lock(&ua->mutex); + err = start_usb_capture(ua); + if (err >= 0) + err = start_usb_playback(ua); + mutex_unlock(&ua->mutex); + if (err < 0) + return err; + + /* see the comment in capture_pcm_prepare() */ + wait_event(ua->alsa_playback_wait, + test_bit(PLAYBACK_URB_COMPLETED, &ua->states) || + !test_bit(USB_PLAYBACK_RUNNING, &ua->states)); + if (test_bit(DISCONNECTED, &ua->states)) + return -ENODEV; + if (!test_bit(USB_PLAYBACK_RUNNING, &ua->states)) + return -EIO; + + substream->runtime->delay = 0; + ua->playback.period_pos = 0; + ua->playback.buffer_pos = 0; + return 0; +} + +static int capture_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct ua101 *ua = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + if (!test_bit(USB_CAPTURE_RUNNING, &ua->states)) + return -EIO; + set_bit(ALSA_CAPTURE_RUNNING, &ua->states); + return 0; + case SNDRV_PCM_TRIGGER_STOP: + clear_bit(ALSA_CAPTURE_RUNNING, &ua->states); + return 0; + default: + return -EINVAL; + } +} + +static int playback_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct ua101 *ua = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + if (!test_bit(USB_PLAYBACK_RUNNING, &ua->states)) + return -EIO; + set_bit(ALSA_PLAYBACK_RUNNING, &ua->states); + return 0; + case SNDRV_PCM_TRIGGER_STOP: + clear_bit(ALSA_PLAYBACK_RUNNING, &ua->states); + return 0; + default: + return -EINVAL; + } +} + +static inline snd_pcm_uframes_t ua101_pcm_pointer(struct ua101 *ua, + struct ua101_stream *stream) +{ + unsigned long flags; + unsigned int pos; + + spin_lock_irqsave(&ua->lock, flags); + pos = stream->buffer_pos; + spin_unlock_irqrestore(&ua->lock, flags); + return pos; +} + +static snd_pcm_uframes_t capture_pcm_pointer(struct snd_pcm_substream *subs) +{ + struct ua101 *ua = subs->private_data; + + return ua101_pcm_pointer(ua, &ua->capture); +} + +static snd_pcm_uframes_t playback_pcm_pointer(struct snd_pcm_substream *subs) +{ + struct ua101 *ua = subs->private_data; + + return ua101_pcm_pointer(ua, &ua->playback); +} + +static const struct snd_pcm_ops capture_pcm_ops = { + .open = capture_pcm_open, + .close = capture_pcm_close, + .hw_params = capture_pcm_hw_params, + .prepare = capture_pcm_prepare, + .trigger = capture_pcm_trigger, + .pointer = capture_pcm_pointer, +}; + +static const struct snd_pcm_ops playback_pcm_ops = { + .open = playback_pcm_open, + .close = playback_pcm_close, + .hw_params = playback_pcm_hw_params, + .prepare = playback_pcm_prepare, + .trigger = playback_pcm_trigger, + .pointer = playback_pcm_pointer, +}; + +static const struct uac_format_type_i_discrete_descriptor * +find_format_descriptor(struct usb_interface *interface) +{ + struct usb_host_interface *alt; + u8 *extra; + int extralen; + + if (interface->num_altsetting != 2) { + dev_err(&interface->dev, "invalid num_altsetting\n"); + return NULL; + } + + alt = &interface->altsetting[0]; + if (alt->desc.bNumEndpoints != 0) { + dev_err(&interface->dev, "invalid bNumEndpoints\n"); + return NULL; + } + + alt = &interface->altsetting[1]; + if (alt->desc.bNumEndpoints != 1) { + dev_err(&interface->dev, "invalid bNumEndpoints\n"); + return NULL; + } + + extra = alt->extra; + extralen = alt->extralen; + while (extralen >= sizeof(struct usb_descriptor_header)) { + struct uac_format_type_i_discrete_descriptor *desc; + + desc = (struct uac_format_type_i_discrete_descriptor *)extra; + if (desc->bLength > extralen) { + dev_err(&interface->dev, "descriptor overflow\n"); + return NULL; + } + if (desc->bLength == UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(1) && + desc->bDescriptorType == USB_DT_CS_INTERFACE && + desc->bDescriptorSubtype == UAC_FORMAT_TYPE) { + if (desc->bFormatType != UAC_FORMAT_TYPE_I_PCM || + desc->bSamFreqType != 1) { + dev_err(&interface->dev, + "invalid format type\n"); + return NULL; + } + return desc; + } + extralen -= desc->bLength; + extra += desc->bLength; + } + dev_err(&interface->dev, "sample format descriptor not found\n"); + return NULL; +} + +static int detect_usb_format(struct ua101 *ua) +{ + const struct uac_format_type_i_discrete_descriptor *fmt_capture; + const struct uac_format_type_i_discrete_descriptor *fmt_playback; + const struct usb_endpoint_descriptor *epd; + unsigned int rate2; + + fmt_capture = find_format_descriptor(ua->intf[INTF_CAPTURE]); + fmt_playback = find_format_descriptor(ua->intf[INTF_PLAYBACK]); + if (!fmt_capture || !fmt_playback) + return -ENXIO; + + switch (fmt_capture->bSubframeSize) { + case 3: + ua->format_bit = SNDRV_PCM_FMTBIT_S24_3LE; + break; + case 4: + ua->format_bit = SNDRV_PCM_FMTBIT_S32_LE; + break; + default: + dev_err(&ua->dev->dev, "sample width is not 24 or 32 bits\n"); + return -ENXIO; + } + if (fmt_capture->bSubframeSize != fmt_playback->bSubframeSize) { + dev_err(&ua->dev->dev, + "playback/capture sample widths do not match\n"); + return -ENXIO; + } + + if (fmt_capture->bBitResolution != 24 || + fmt_playback->bBitResolution != 24) { + dev_err(&ua->dev->dev, "sample width is not 24 bits\n"); + return -ENXIO; + } + + ua->rate = combine_triple(fmt_capture->tSamFreq[0]); + rate2 = combine_triple(fmt_playback->tSamFreq[0]); + if (ua->rate != rate2) { + dev_err(&ua->dev->dev, + "playback/capture rates do not match: %u/%u\n", + rate2, ua->rate); + return -ENXIO; + } + + switch (ua->dev->speed) { + case USB_SPEED_FULL: + ua->packets_per_second = 1000; + break; + case USB_SPEED_HIGH: + ua->packets_per_second = 8000; + break; + default: + dev_err(&ua->dev->dev, "unknown device speed\n"); + return -ENXIO; + } + + ua->capture.channels = fmt_capture->bNrChannels; + ua->playback.channels = fmt_playback->bNrChannels; + ua->capture.frame_bytes = + fmt_capture->bSubframeSize * ua->capture.channels; + ua->playback.frame_bytes = + fmt_playback->bSubframeSize * ua->playback.channels; + + epd = &ua->intf[INTF_CAPTURE]->altsetting[1].endpoint[0].desc; + if (!usb_endpoint_is_isoc_in(epd) || usb_endpoint_maxp(epd) == 0) { + dev_err(&ua->dev->dev, "invalid capture endpoint\n"); + return -ENXIO; + } + ua->capture.usb_pipe = usb_rcvisocpipe(ua->dev, usb_endpoint_num(epd)); + ua->capture.max_packet_bytes = usb_endpoint_maxp(epd); + + epd = &ua->intf[INTF_PLAYBACK]->altsetting[1].endpoint[0].desc; + if (!usb_endpoint_is_isoc_out(epd) || usb_endpoint_maxp(epd) == 0) { + dev_err(&ua->dev->dev, "invalid playback endpoint\n"); + return -ENXIO; + } + ua->playback.usb_pipe = usb_sndisocpipe(ua->dev, usb_endpoint_num(epd)); + ua->playback.max_packet_bytes = usb_endpoint_maxp(epd); + return 0; +} + +static int alloc_stream_buffers(struct ua101 *ua, struct ua101_stream *stream) +{ + unsigned int remaining_packets, packets, packets_per_page, i; + size_t size; + + stream->queue_length = queue_length; + stream->queue_length = max(stream->queue_length, + (unsigned int)MIN_QUEUE_LENGTH); + stream->queue_length = min(stream->queue_length, + (unsigned int)MAX_QUEUE_LENGTH); + + /* + * The cache pool sizes used by usb_alloc_coherent() (128, 512, 2048) are + * quite bad when used with the packet sizes of this device (e.g. 280, + * 520, 624). Therefore, we allocate and subdivide entire pages, using + * a smaller buffer only for the last chunk. + */ + remaining_packets = stream->queue_length; + packets_per_page = PAGE_SIZE / stream->max_packet_bytes; + for (i = 0; i < ARRAY_SIZE(stream->buffers); ++i) { + packets = min(remaining_packets, packets_per_page); + size = packets * stream->max_packet_bytes; + stream->buffers[i].addr = + usb_alloc_coherent(ua->dev, size, GFP_KERNEL, + &stream->buffers[i].dma); + if (!stream->buffers[i].addr) + return -ENOMEM; + stream->buffers[i].size = size; + remaining_packets -= packets; + if (!remaining_packets) + break; + } + if (remaining_packets) { + dev_err(&ua->dev->dev, "too many packets\n"); + return -ENXIO; + } + return 0; +} + +static void free_stream_buffers(struct ua101 *ua, struct ua101_stream *stream) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(stream->buffers); ++i) + usb_free_coherent(ua->dev, + stream->buffers[i].size, + stream->buffers[i].addr, + stream->buffers[i].dma); +} + +static int alloc_stream_urbs(struct ua101 *ua, struct ua101_stream *stream, + void (*urb_complete)(struct urb *)) +{ + unsigned max_packet_size = stream->max_packet_bytes; + struct ua101_urb *urb; + unsigned int b, u = 0; + + for (b = 0; b < ARRAY_SIZE(stream->buffers); ++b) { + unsigned int size = stream->buffers[b].size; + u8 *addr = stream->buffers[b].addr; + dma_addr_t dma = stream->buffers[b].dma; + + while (size >= max_packet_size) { + if (u >= stream->queue_length) + goto bufsize_error; + urb = kmalloc(sizeof(*urb), GFP_KERNEL); + if (!urb) + return -ENOMEM; + usb_init_urb(&urb->urb); + urb->urb.dev = ua->dev; + urb->urb.pipe = stream->usb_pipe; + urb->urb.transfer_flags = URB_NO_TRANSFER_DMA_MAP; + urb->urb.transfer_buffer = addr; + urb->urb.transfer_dma = dma; + urb->urb.transfer_buffer_length = max_packet_size; + urb->urb.number_of_packets = 1; + urb->urb.interval = 1; + urb->urb.context = ua; + urb->urb.complete = urb_complete; + urb->urb.iso_frame_desc[0].offset = 0; + urb->urb.iso_frame_desc[0].length = max_packet_size; + stream->urbs[u++] = urb; + size -= max_packet_size; + addr += max_packet_size; + dma += max_packet_size; + } + } + if (u == stream->queue_length) + return 0; +bufsize_error: + dev_err(&ua->dev->dev, "internal buffer size error\n"); + return -ENXIO; +} + +static void free_stream_urbs(struct ua101_stream *stream) +{ + unsigned int i; + + for (i = 0; i < stream->queue_length; ++i) { + kfree(stream->urbs[i]); + stream->urbs[i] = NULL; + } +} + +static void free_usb_related_resources(struct ua101 *ua, + struct usb_interface *interface) +{ + unsigned int i; + struct usb_interface *intf; + + mutex_lock(&ua->mutex); + free_stream_urbs(&ua->capture); + free_stream_urbs(&ua->playback); + mutex_unlock(&ua->mutex); + free_stream_buffers(ua, &ua->capture); + free_stream_buffers(ua, &ua->playback); + + for (i = 0; i < ARRAY_SIZE(ua->intf); ++i) { + mutex_lock(&ua->mutex); + intf = ua->intf[i]; + ua->intf[i] = NULL; + mutex_unlock(&ua->mutex); + if (intf) { + usb_set_intfdata(intf, NULL); + if (intf != interface) + usb_driver_release_interface(&ua101_driver, + intf); + } + } +} + +static void ua101_card_free(struct snd_card *card) +{ + struct ua101 *ua = card->private_data; + + mutex_destroy(&ua->mutex); +} + +static int ua101_probe(struct usb_interface *interface, + const struct usb_device_id *usb_id) +{ + static const struct snd_usb_midi_endpoint_info midi_ep = { + .out_cables = 0x0001, + .in_cables = 0x0001 + }; + static const struct snd_usb_audio_quirk midi_quirk = { + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &midi_ep + }; + static const int intf_numbers[2][3] = { + { /* UA-101 */ + [INTF_PLAYBACK] = 0, + [INTF_CAPTURE] = 1, + [INTF_MIDI] = 2, + }, + { /* UA-1000 */ + [INTF_CAPTURE] = 1, + [INTF_PLAYBACK] = 2, + [INTF_MIDI] = 3, + }, + }; + struct snd_card *card; + struct ua101 *ua; + unsigned int card_index, i; + int is_ua1000; + const char *name; + char usb_path[32]; + int err; + + is_ua1000 = usb_id->idProduct == 0x0044; + + if (interface->altsetting->desc.bInterfaceNumber != + intf_numbers[is_ua1000][0]) + return -ENODEV; + + mutex_lock(&devices_mutex); + + for (card_index = 0; card_index < SNDRV_CARDS; ++card_index) + if (enable[card_index] && !(devices_used & (1 << card_index))) + break; + if (card_index >= SNDRV_CARDS) { + mutex_unlock(&devices_mutex); + return -ENOENT; + } + err = snd_card_new(&interface->dev, + index[card_index], id[card_index], THIS_MODULE, + sizeof(*ua), &card); + if (err < 0) { + mutex_unlock(&devices_mutex); + return err; + } + card->private_free = ua101_card_free; + ua = card->private_data; + ua->dev = interface_to_usbdev(interface); + ua->card = card; + ua->card_index = card_index; + INIT_LIST_HEAD(&ua->midi_list); + spin_lock_init(&ua->lock); + mutex_init(&ua->mutex); + INIT_LIST_HEAD(&ua->ready_playback_urbs); + INIT_WORK(&ua->playback_work, playback_work); + init_waitqueue_head(&ua->alsa_capture_wait); + init_waitqueue_head(&ua->rate_feedback_wait); + init_waitqueue_head(&ua->alsa_playback_wait); + + ua->intf[0] = interface; + for (i = 1; i < ARRAY_SIZE(ua->intf); ++i) { + ua->intf[i] = usb_ifnum_to_if(ua->dev, + intf_numbers[is_ua1000][i]); + if (!ua->intf[i]) { + dev_err(&ua->dev->dev, "interface %u not found\n", + intf_numbers[is_ua1000][i]); + err = -ENXIO; + goto probe_error; + } + err = usb_driver_claim_interface(&ua101_driver, + ua->intf[i], ua); + if (err < 0) { + ua->intf[i] = NULL; + err = -EBUSY; + goto probe_error; + } + } + + err = detect_usb_format(ua); + if (err < 0) + goto probe_error; + + name = usb_id->idProduct == 0x0044 ? "UA-1000" : "UA-101"; + strcpy(card->driver, "UA-101"); + strcpy(card->shortname, name); + usb_make_path(ua->dev, usb_path, sizeof(usb_path)); + snprintf(ua->card->longname, sizeof(ua->card->longname), + "EDIROL %s (serial %s), %u Hz at %s, %s speed", name, + ua->dev->serial ? ua->dev->serial : "?", ua->rate, usb_path, + ua->dev->speed == USB_SPEED_HIGH ? "high" : "full"); + + err = alloc_stream_buffers(ua, &ua->capture); + if (err < 0) + goto probe_error; + err = alloc_stream_buffers(ua, &ua->playback); + if (err < 0) + goto probe_error; + + err = alloc_stream_urbs(ua, &ua->capture, capture_urb_complete); + if (err < 0) + goto probe_error; + err = alloc_stream_urbs(ua, &ua->playback, playback_urb_complete); + if (err < 0) + goto probe_error; + + err = snd_pcm_new(card, name, 0, 1, 1, &ua->pcm); + if (err < 0) + goto probe_error; + ua->pcm->private_data = ua; + strcpy(ua->pcm->name, name); + snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_pcm_ops); + snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_pcm_ops); + snd_pcm_set_managed_buffer_all(ua->pcm, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); + + err = snd_usbmidi_create(card, ua->intf[INTF_MIDI], + &ua->midi_list, &midi_quirk); + if (err < 0) + goto probe_error; + + err = snd_card_register(card); + if (err < 0) + goto probe_error; + + usb_set_intfdata(interface, ua); + devices_used |= 1 << card_index; + + mutex_unlock(&devices_mutex); + return 0; + +probe_error: + free_usb_related_resources(ua, interface); + snd_card_free(card); + mutex_unlock(&devices_mutex); + return err; +} + +static void ua101_disconnect(struct usb_interface *interface) +{ + struct ua101 *ua = usb_get_intfdata(interface); + struct list_head *midi; + + if (!ua) + return; + + mutex_lock(&devices_mutex); + + set_bit(DISCONNECTED, &ua->states); + wake_up(&ua->rate_feedback_wait); + + /* make sure that userspace cannot create new requests */ + snd_card_disconnect(ua->card); + + /* make sure that there are no pending USB requests */ + list_for_each(midi, &ua->midi_list) + snd_usbmidi_disconnect(midi); + abort_alsa_playback(ua); + abort_alsa_capture(ua); + mutex_lock(&ua->mutex); + stop_usb_playback(ua); + stop_usb_capture(ua); + mutex_unlock(&ua->mutex); + + free_usb_related_resources(ua, interface); + + devices_used &= ~(1 << ua->card_index); + + snd_card_free_when_closed(ua->card); + + mutex_unlock(&devices_mutex); +} + +static const struct usb_device_id ua101_ids[] = { + { USB_DEVICE(0x0582, 0x0044) }, /* UA-1000 high speed */ + { USB_DEVICE(0x0582, 0x007d) }, /* UA-101 high speed */ + { USB_DEVICE(0x0582, 0x008d) }, /* UA-101 full speed */ + { } +}; +MODULE_DEVICE_TABLE(usb, ua101_ids); + +static struct usb_driver ua101_driver = { + .name = "snd-ua101", + .id_table = ua101_ids, + .probe = ua101_probe, + .disconnect = ua101_disconnect, +#if 0 + .suspend = ua101_suspend, + .resume = ua101_resume, +#endif +}; + +module_usb_driver(ua101_driver); diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c new file mode 100644 index 000000000..783a24937 --- /dev/null +++ b/sound/usb/mixer.c @@ -0,0 +1,3730 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (Tentative) USB Audio Driver for ALSA + * + * Mixer control part + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + * + * Many codes borrowed from audio.c by + * Alan Cox (alan@lxorguk.ukuu.org.uk) + * Thomas Sailer (sailer@ife.ee.ethz.ch) + */ + +/* + * TODOs, for both the mixer and the streaming interfaces: + * + * - support for UAC2 effect units + * - support for graphical equalizers + * - RANGE and MEM set commands (UAC2) + * - RANGE and MEM interrupt dispatchers (UAC2) + * - audio channel clustering (UAC2) + * - audio sample rate converter units (UAC2) + * - proper handling of clock multipliers (UAC2) + * - dispatch clock change notifications (UAC2) + * - stop PCM streams which use a clock that became invalid + * - stop PCM streams which use a clock selector that has changed + * - parse available sample rates again when clock sources changed + */ + +#include <linux/bitops.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/log2.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> +#include <linux/usb/audio-v3.h> + +#include <sound/core.h> +#include <sound/control.h> +#include <sound/hwdep.h> +#include <sound/info.h> +#include <sound/tlv.h> + +#include "usbaudio.h" +#include "mixer.h" +#include "helper.h" +#include "mixer_quirks.h" +#include "power.h" + +#define MAX_ID_ELEMS 256 + +struct usb_audio_term { + int id; + int type; + int channels; + unsigned int chconfig; + int name; +}; + +struct usbmix_name_map; + +struct mixer_build { + struct snd_usb_audio *chip; + struct usb_mixer_interface *mixer; + unsigned char *buffer; + unsigned int buflen; + DECLARE_BITMAP(unitbitmap, MAX_ID_ELEMS); + DECLARE_BITMAP(termbitmap, MAX_ID_ELEMS); + struct usb_audio_term oterm; + const struct usbmix_name_map *map; + const struct usbmix_selector_map *selector_map; +}; + +/*E-mu 0202/0404/0204 eXtension Unit(XU) control*/ +enum { + USB_XU_CLOCK_RATE = 0xe301, + USB_XU_CLOCK_SOURCE = 0xe302, + USB_XU_DIGITAL_IO_STATUS = 0xe303, + USB_XU_DEVICE_OPTIONS = 0xe304, + USB_XU_DIRECT_MONITORING = 0xe305, + USB_XU_METERING = 0xe306 +}; +enum { + USB_XU_CLOCK_SOURCE_SELECTOR = 0x02, /* clock source*/ + USB_XU_CLOCK_RATE_SELECTOR = 0x03, /* clock rate */ + USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01, /* the spdif format */ + USB_XU_SOFT_LIMIT_SELECTOR = 0x03 /* soft limiter */ +}; + +/* + * manual mapping of mixer names + * if the mixer topology is too complicated and the parsed names are + * ambiguous, add the entries in usbmixer_maps.c. + */ +#include "mixer_maps.c" + +static const struct usbmix_name_map * +find_map(const struct usbmix_name_map *p, int unitid, int control) +{ + if (!p) + return NULL; + + for (; p->id; p++) { + if (p->id == unitid && + (!control || !p->control || control == p->control)) + return p; + } + return NULL; +} + +/* get the mapped name if the unit matches */ +static int +check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen) +{ + int len; + + if (!p || !p->name) + return 0; + + buflen--; + len = strscpy(buf, p->name, buflen); + return len < 0 ? buflen : len; +} + +/* ignore the error value if ignore_ctl_error flag is set */ +#define filter_error(cval, err) \ + ((cval)->head.mixer->ignore_ctl_error ? 0 : (err)) + +/* check whether the control should be ignored */ +static inline int +check_ignored_ctl(const struct usbmix_name_map *p) +{ + if (!p || p->name || p->dB) + return 0; + return 1; +} + +/* dB mapping */ +static inline void check_mapped_dB(const struct usbmix_name_map *p, + struct usb_mixer_elem_info *cval) +{ + if (p && p->dB) { + cval->dBmin = p->dB->min; + cval->dBmax = p->dB->max; + cval->min_mute = p->dB->min_mute; + cval->initialized = 1; + } +} + +/* get the mapped selector source name */ +static int check_mapped_selector_name(struct mixer_build *state, int unitid, + int index, char *buf, int buflen) +{ + const struct usbmix_selector_map *p; + int len; + + if (!state->selector_map) + return 0; + for (p = state->selector_map; p->id; p++) { + if (p->id == unitid && index < p->count) { + len = strscpy(buf, p->names[index], buflen); + return len < 0 ? buflen : len; + } + } + return 0; +} + +/* + * find an audio control unit with the given unit id + */ +static void *find_audio_control_unit(struct mixer_build *state, + unsigned char unit) +{ + /* we just parse the header */ + struct uac_feature_unit_descriptor *hdr = NULL; + + while ((hdr = snd_usb_find_desc(state->buffer, state->buflen, hdr, + USB_DT_CS_INTERFACE)) != NULL) { + if (hdr->bLength >= 4 && + hdr->bDescriptorSubtype >= UAC_INPUT_TERMINAL && + hdr->bDescriptorSubtype <= UAC3_SAMPLE_RATE_CONVERTER && + hdr->bUnitID == unit) + return hdr; + } + + return NULL; +} + +/* + * copy a string with the given id + */ +static int snd_usb_copy_string_desc(struct snd_usb_audio *chip, + int index, char *buf, int maxlen) +{ + int len = usb_string(chip->dev, index, buf, maxlen - 1); + + if (len < 0) + return 0; + + buf[len] = 0; + return len; +} + +/* + * convert from the byte/word on usb descriptor to the zero-based integer + */ +static int convert_signed_value(struct usb_mixer_elem_info *cval, int val) +{ + switch (cval->val_type) { + case USB_MIXER_BOOLEAN: + return !!val; + case USB_MIXER_INV_BOOLEAN: + return !val; + case USB_MIXER_U8: + val &= 0xff; + break; + case USB_MIXER_S8: + val &= 0xff; + if (val >= 0x80) + val -= 0x100; + break; + case USB_MIXER_U16: + val &= 0xffff; + break; + case USB_MIXER_S16: + val &= 0xffff; + if (val >= 0x8000) + val -= 0x10000; + break; + } + return val; +} + +/* + * convert from the zero-based int to the byte/word for usb descriptor + */ +static int convert_bytes_value(struct usb_mixer_elem_info *cval, int val) +{ + switch (cval->val_type) { + case USB_MIXER_BOOLEAN: + return !!val; + case USB_MIXER_INV_BOOLEAN: + return !val; + case USB_MIXER_S8: + case USB_MIXER_U8: + return val & 0xff; + case USB_MIXER_S16: + case USB_MIXER_U16: + return val & 0xffff; + } + return 0; /* not reached */ +} + +static int get_relative_value(struct usb_mixer_elem_info *cval, int val) +{ + if (!cval->res) + cval->res = 1; + if (val < cval->min) + return 0; + else if (val >= cval->max) + return DIV_ROUND_UP(cval->max - cval->min, cval->res); + else + return (val - cval->min) / cval->res; +} + +static int get_abs_value(struct usb_mixer_elem_info *cval, int val) +{ + if (val < 0) + return cval->min; + if (!cval->res) + cval->res = 1; + val *= cval->res; + val += cval->min; + if (val > cval->max) + return cval->max; + return val; +} + +static int uac2_ctl_value_size(int val_type) +{ + switch (val_type) { + case USB_MIXER_S32: + case USB_MIXER_U32: + return 4; + case USB_MIXER_S16: + case USB_MIXER_U16: + return 2; + default: + return 1; + } + return 0; /* unreachable */ +} + + +/* + * retrieve a mixer value + */ + +static inline int mixer_ctrl_intf(struct usb_mixer_interface *mixer) +{ + return get_iface_desc(mixer->hostif)->bInterfaceNumber; +} + +static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, + int validx, int *value_ret) +{ + struct snd_usb_audio *chip = cval->head.mixer->chip; + unsigned char buf[2]; + int val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; + int timeout = 10; + int idx = 0, err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return -EIO; + + while (timeout-- > 0) { + idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); + err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), request, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + validx, idx, buf, val_len); + if (err >= val_len) { + *value_ret = convert_signed_value(cval, snd_usb_combine_bytes(buf, val_len)); + err = 0; + goto out; + } else if (err == -ETIMEDOUT) { + goto out; + } + } + usb_audio_dbg(chip, + "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", + request, validx, idx, cval->val_type); + err = -EINVAL; + + out: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, + int validx, int *value_ret) +{ + struct snd_usb_audio *chip = cval->head.mixer->chip; + /* enough space for one range */ + unsigned char buf[sizeof(__u16) + 3 * sizeof(__u32)]; + unsigned char *val; + int idx = 0, ret, val_size, size; + __u8 bRequest; + + val_size = uac2_ctl_value_size(cval->val_type); + + if (request == UAC_GET_CUR) { + bRequest = UAC2_CS_CUR; + size = val_size; + } else { + bRequest = UAC2_CS_RANGE; + size = sizeof(__u16) + 3 * val_size; + } + + memset(buf, 0, sizeof(buf)); + + if (snd_usb_lock_shutdown(chip)) + return -EIO; + + idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); + ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), bRequest, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + validx, idx, buf, size); + snd_usb_unlock_shutdown(chip); + + if (ret < 0) { + usb_audio_dbg(chip, + "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", + request, validx, idx, cval->val_type); + return ret; + } + + /* FIXME: how should we handle multiple triplets here? */ + + switch (request) { + case UAC_GET_CUR: + val = buf; + break; + case UAC_GET_MIN: + val = buf + sizeof(__u16); + break; + case UAC_GET_MAX: + val = buf + sizeof(__u16) + val_size; + break; + case UAC_GET_RES: + val = buf + sizeof(__u16) + val_size * 2; + break; + default: + return -EINVAL; + } + + *value_ret = convert_signed_value(cval, + snd_usb_combine_bytes(val, val_size)); + + return 0; +} + +static int get_ctl_value(struct usb_mixer_elem_info *cval, int request, + int validx, int *value_ret) +{ + validx += cval->idx_off; + + return (cval->head.mixer->protocol == UAC_VERSION_1) ? + get_ctl_value_v1(cval, request, validx, value_ret) : + get_ctl_value_v2(cval, request, validx, value_ret); +} + +static int get_cur_ctl_value(struct usb_mixer_elem_info *cval, + int validx, int *value) +{ + return get_ctl_value(cval, UAC_GET_CUR, validx, value); +} + +/* channel = 0: master, 1 = first channel */ +static inline int get_cur_mix_raw(struct usb_mixer_elem_info *cval, + int channel, int *value) +{ + return get_ctl_value(cval, UAC_GET_CUR, + (cval->control << 8) | channel, + value); +} + +int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, + int channel, int index, int *value) +{ + int err; + + if (cval->cached & (1 << channel)) { + *value = cval->cache_val[index]; + return 0; + } + err = get_cur_mix_raw(cval, channel, value); + if (err < 0) { + if (!cval->head.mixer->ignore_ctl_error) + usb_audio_dbg(cval->head.mixer->chip, + "cannot get current value for control %d ch %d: err = %d\n", + cval->control, channel, err); + return err; + } + cval->cached |= 1 << channel; + cval->cache_val[index] = *value; + return 0; +} + +/* + * set a mixer value + */ + +int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, + int request, int validx, int value_set) +{ + struct snd_usb_audio *chip = cval->head.mixer->chip; + unsigned char buf[4]; + int idx = 0, val_len, err, timeout = 10; + + validx += cval->idx_off; + + + if (cval->head.mixer->protocol == UAC_VERSION_1) { + val_len = cval->val_type >= USB_MIXER_S16 ? 2 : 1; + } else { /* UAC_VERSION_2/3 */ + val_len = uac2_ctl_value_size(cval->val_type); + + /* FIXME */ + if (request != UAC_SET_CUR) { + usb_audio_dbg(chip, "RANGE setting not yet supported\n"); + return -EINVAL; + } + + request = UAC2_CS_CUR; + } + + value_set = convert_bytes_value(cval, value_set); + buf[0] = value_set & 0xff; + buf[1] = (value_set >> 8) & 0xff; + buf[2] = (value_set >> 16) & 0xff; + buf[3] = (value_set >> 24) & 0xff; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return -EIO; + + while (timeout-- > 0) { + idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), request, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + validx, idx, buf, val_len); + if (err >= 0) { + err = 0; + goto out; + } else if (err == -ETIMEDOUT) { + goto out; + } + } + usb_audio_dbg(chip, "cannot set ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d, data = %#x/%#x\n", + request, validx, idx, cval->val_type, buf[0], buf[1]); + err = -EINVAL; + + out: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int set_cur_ctl_value(struct usb_mixer_elem_info *cval, + int validx, int value) +{ + return snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, validx, value); +} + +int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, + int index, int value) +{ + int err; + unsigned int read_only = (channel == 0) ? + cval->master_readonly : + cval->ch_readonly & (1 << (channel - 1)); + + if (read_only) { + usb_audio_dbg(cval->head.mixer->chip, + "%s(): channel %d of control %d is read_only\n", + __func__, channel, cval->control); + return 0; + } + + err = snd_usb_mixer_set_ctl_value(cval, + UAC_SET_CUR, (cval->control << 8) | channel, + value); + if (err < 0) + return err; + cval->cached |= 1 << channel; + cval->cache_val[index] = value; + return 0; +} + +/* + * TLV callback for mixer volume controls + */ +int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, + unsigned int size, unsigned int __user *_tlv) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + DECLARE_TLV_DB_MINMAX(scale, 0, 0); + + if (size < sizeof(scale)) + return -ENOMEM; + if (cval->min_mute) + scale[0] = SNDRV_CTL_TLVT_DB_MINMAX_MUTE; + scale[2] = cval->dBmin; + scale[3] = cval->dBmax; + if (copy_to_user(_tlv, scale, sizeof(scale))) + return -EFAULT; + return 0; +} + +/* + * parser routines begin here... + */ + +static int parse_audio_unit(struct mixer_build *state, int unitid); + + +/* + * check if the input/output channel routing is enabled on the given bitmap. + * used for mixer unit parser + */ +static int check_matrix_bitmap(unsigned char *bmap, + int ich, int och, int num_outs) +{ + int idx = ich * num_outs + och; + return bmap[idx >> 3] & (0x80 >> (idx & 7)); +} + +/* + * add an alsa control element + * search and increment the index until an empty slot is found. + * + * if failed, give up and free the control instance. + */ + +int snd_usb_mixer_add_list(struct usb_mixer_elem_list *list, + struct snd_kcontrol *kctl, + bool is_std_info) +{ + struct usb_mixer_interface *mixer = list->mixer; + int err; + + while (snd_ctl_find_id(mixer->chip->card, &kctl->id)) + kctl->id.index++; + err = snd_ctl_add(mixer->chip->card, kctl); + if (err < 0) { + usb_audio_dbg(mixer->chip, "cannot add control (err = %d)\n", + err); + return err; + } + list->kctl = kctl; + list->is_std_info = is_std_info; + list->next_id_elem = mixer->id_elems[list->id]; + mixer->id_elems[list->id] = list; + return 0; +} + +/* + * get a terminal name string + */ + +static struct iterm_name_combo { + int type; + char *name; +} iterm_names[] = { + { 0x0300, "Output" }, + { 0x0301, "Speaker" }, + { 0x0302, "Headphone" }, + { 0x0303, "HMD Audio" }, + { 0x0304, "Desktop Speaker" }, + { 0x0305, "Room Speaker" }, + { 0x0306, "Com Speaker" }, + { 0x0307, "LFE" }, + { 0x0600, "External In" }, + { 0x0601, "Analog In" }, + { 0x0602, "Digital In" }, + { 0x0603, "Line" }, + { 0x0604, "Legacy In" }, + { 0x0605, "IEC958 In" }, + { 0x0606, "1394 DA Stream" }, + { 0x0607, "1394 DV Stream" }, + { 0x0700, "Embedded" }, + { 0x0701, "Noise Source" }, + { 0x0702, "Equalization Noise" }, + { 0x0703, "CD" }, + { 0x0704, "DAT" }, + { 0x0705, "DCC" }, + { 0x0706, "MiniDisk" }, + { 0x0707, "Analog Tape" }, + { 0x0708, "Phonograph" }, + { 0x0709, "VCR Audio" }, + { 0x070a, "Video Disk Audio" }, + { 0x070b, "DVD Audio" }, + { 0x070c, "TV Tuner Audio" }, + { 0x070d, "Satellite Rec Audio" }, + { 0x070e, "Cable Tuner Audio" }, + { 0x070f, "DSS Audio" }, + { 0x0710, "Radio Receiver" }, + { 0x0711, "Radio Transmitter" }, + { 0x0712, "Multi-Track Recorder" }, + { 0x0713, "Synthesizer" }, + { 0 }, +}; + +static int get_term_name(struct snd_usb_audio *chip, struct usb_audio_term *iterm, + unsigned char *name, int maxlen, int term_only) +{ + struct iterm_name_combo *names; + int len; + + if (iterm->name) { + len = snd_usb_copy_string_desc(chip, iterm->name, + name, maxlen); + if (len) + return len; + } + + /* virtual type - not a real terminal */ + if (iterm->type >> 16) { + if (term_only) + return 0; + switch (iterm->type >> 16) { + case UAC3_SELECTOR_UNIT: + strcpy(name, "Selector"); + return 8; + case UAC3_PROCESSING_UNIT: + strcpy(name, "Process Unit"); + return 12; + case UAC3_EXTENSION_UNIT: + strcpy(name, "Ext Unit"); + return 8; + case UAC3_MIXER_UNIT: + strcpy(name, "Mixer"); + return 5; + default: + return sprintf(name, "Unit %d", iterm->id); + } + } + + switch (iterm->type & 0xff00) { + case 0x0100: + strcpy(name, "PCM"); + return 3; + case 0x0200: + strcpy(name, "Mic"); + return 3; + case 0x0400: + strcpy(name, "Headset"); + return 7; + case 0x0500: + strcpy(name, "Phone"); + return 5; + } + + for (names = iterm_names; names->type; names++) { + if (names->type == iterm->type) { + strcpy(name, names->name); + return strlen(names->name); + } + } + + return 0; +} + +/* + * Get logical cluster information for UAC3 devices. + */ +static int get_cluster_channels_v3(struct mixer_build *state, unsigned int cluster_id) +{ + struct uac3_cluster_header_descriptor c_header; + int err; + + err = snd_usb_ctl_msg(state->chip->dev, + usb_rcvctrlpipe(state->chip->dev, 0), + UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + cluster_id, + snd_usb_ctrl_intf(state->chip), + &c_header, sizeof(c_header)); + if (err < 0) + goto error; + if (err != sizeof(c_header)) { + err = -EIO; + goto error; + } + + return c_header.bNrChannels; + +error: + usb_audio_err(state->chip, "cannot request logical cluster ID: %d (err: %d)\n", cluster_id, err); + return err; +} + +/* + * Get number of channels for a Mixer Unit. + */ +static int uac_mixer_unit_get_channels(struct mixer_build *state, + struct uac_mixer_unit_descriptor *desc) +{ + int mu_channels; + + switch (state->mixer->protocol) { + case UAC_VERSION_1: + case UAC_VERSION_2: + default: + if (desc->bLength < sizeof(*desc) + desc->bNrInPins + 1) + return 0; /* no bmControls -> skip */ + mu_channels = uac_mixer_unit_bNrChannels(desc); + break; + case UAC_VERSION_3: + mu_channels = get_cluster_channels_v3(state, + uac3_mixer_unit_wClusterDescrID(desc)); + break; + } + + return mu_channels; +} + +/* + * Parse Input Terminal Unit + */ +static int __check_input_term(struct mixer_build *state, int id, + struct usb_audio_term *term); + +static int parse_term_uac1_iterm_unit(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac_input_terminal_descriptor *d = p1; + + term->type = le16_to_cpu(d->wTerminalType); + term->channels = d->bNrChannels; + term->chconfig = le16_to_cpu(d->wChannelConfig); + term->name = d->iTerminal; + return 0; +} + +static int parse_term_uac2_iterm_unit(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac2_input_terminal_descriptor *d = p1; + int err; + + /* call recursively to verify the referenced clock entity */ + err = __check_input_term(state, d->bCSourceID, term); + if (err < 0) + return err; + + /* save input term properties after recursion, + * to ensure they are not overriden by the recursion calls + */ + term->id = id; + term->type = le16_to_cpu(d->wTerminalType); + term->channels = d->bNrChannels; + term->chconfig = le32_to_cpu(d->bmChannelConfig); + term->name = d->iTerminal; + return 0; +} + +static int parse_term_uac3_iterm_unit(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac3_input_terminal_descriptor *d = p1; + int err; + + /* call recursively to verify the referenced clock entity */ + err = __check_input_term(state, d->bCSourceID, term); + if (err < 0) + return err; + + /* save input term properties after recursion, + * to ensure they are not overriden by the recursion calls + */ + term->id = id; + term->type = le16_to_cpu(d->wTerminalType); + + err = get_cluster_channels_v3(state, le16_to_cpu(d->wClusterDescrID)); + if (err < 0) + return err; + term->channels = err; + + /* REVISIT: UAC3 IT doesn't have channels cfg */ + term->chconfig = 0; + + term->name = le16_to_cpu(d->wTerminalDescrStr); + return 0; +} + +static int parse_term_mixer_unit(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac_mixer_unit_descriptor *d = p1; + int protocol = state->mixer->protocol; + int err; + + err = uac_mixer_unit_get_channels(state, d); + if (err <= 0) + return err; + + term->type = UAC3_MIXER_UNIT << 16; /* virtual type */ + term->channels = err; + if (protocol != UAC_VERSION_3) { + term->chconfig = uac_mixer_unit_wChannelConfig(d, protocol); + term->name = uac_mixer_unit_iMixer(d); + } + return 0; +} + +static int parse_term_selector_unit(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac_selector_unit_descriptor *d = p1; + int err; + + /* call recursively to retrieve the channel info */ + err = __check_input_term(state, d->baSourceID[0], term); + if (err < 0) + return err; + term->type = UAC3_SELECTOR_UNIT << 16; /* virtual type */ + term->id = id; + if (state->mixer->protocol != UAC_VERSION_3) + term->name = uac_selector_unit_iSelector(d); + return 0; +} + +static int parse_term_proc_unit(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id, int vtype) +{ + struct uac_processing_unit_descriptor *d = p1; + int protocol = state->mixer->protocol; + int err; + + if (d->bNrInPins) { + /* call recursively to retrieve the channel info */ + err = __check_input_term(state, d->baSourceID[0], term); + if (err < 0) + return err; + } + + term->type = vtype << 16; /* virtual type */ + term->id = id; + + if (protocol == UAC_VERSION_3) + return 0; + + if (!term->channels) { + term->channels = uac_processing_unit_bNrChannels(d); + term->chconfig = uac_processing_unit_wChannelConfig(d, protocol); + } + term->name = uac_processing_unit_iProcessing(d, protocol); + return 0; +} + +static int parse_term_effect_unit(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac2_effect_unit_descriptor *d = p1; + int err; + + err = __check_input_term(state, d->bSourceID, term); + if (err < 0) + return err; + term->type = UAC3_EFFECT_UNIT << 16; /* virtual type */ + term->id = id; + return 0; +} + +static int parse_term_uac2_clock_source(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac_clock_source_descriptor *d = p1; + + term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ + term->id = id; + term->name = d->iClockSource; + return 0; +} + +static int parse_term_uac3_clock_source(struct mixer_build *state, + struct usb_audio_term *term, + void *p1, int id) +{ + struct uac3_clock_source_descriptor *d = p1; + + term->type = UAC3_CLOCK_SOURCE << 16; /* virtual type */ + term->id = id; + term->name = le16_to_cpu(d->wClockSourceStr); + return 0; +} + +#define PTYPE(a, b) ((a) << 8 | (b)) + +/* + * parse the source unit recursively until it reaches to a terminal + * or a branched unit. + */ +static int __check_input_term(struct mixer_build *state, int id, + struct usb_audio_term *term) +{ + int protocol = state->mixer->protocol; + void *p1; + unsigned char *hdr; + + for (;;) { + /* a loop in the terminal chain? */ + if (test_and_set_bit(id, state->termbitmap)) + return -EINVAL; + + p1 = find_audio_control_unit(state, id); + if (!p1) + break; + if (!snd_usb_validate_audio_desc(p1, protocol)) + break; /* bad descriptor */ + + hdr = p1; + term->id = id; + + switch (PTYPE(protocol, hdr[2])) { + case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT): + case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): { + /* the header is the same for all versions */ + struct uac_feature_unit_descriptor *d = p1; + + id = d->bSourceID; + break; /* continue to parse */ + } + case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL): + return parse_term_uac1_iterm_unit(state, term, p1, id); + case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL): + return parse_term_uac2_iterm_unit(state, term, p1, id); + case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL): + return parse_term_uac3_iterm_unit(state, term, p1, id); + case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT): + case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT): + return parse_term_mixer_unit(state, term, p1, id); + case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT): + case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT): + case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR): + case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR): + return parse_term_selector_unit(state, term, p1, id); + case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT): + case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2): + case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT): + return parse_term_proc_unit(state, term, p1, id, + UAC3_PROCESSING_UNIT); + case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT): + return parse_term_effect_unit(state, term, p1, id); + case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): + case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2): + case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT): + return parse_term_proc_unit(state, term, p1, id, + UAC3_EXTENSION_UNIT); + case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE): + return parse_term_uac2_clock_source(state, term, p1, id); + case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE): + return parse_term_uac3_clock_source(state, term, p1, id); + default: + return -ENODEV; + } + } + return -ENODEV; +} + + +static int check_input_term(struct mixer_build *state, int id, + struct usb_audio_term *term) +{ + memset(term, 0, sizeof(*term)); + memset(state->termbitmap, 0, sizeof(state->termbitmap)); + return __check_input_term(state, id, term); +} + +/* + * Feature Unit + */ + +/* feature unit control information */ +struct usb_feature_control_info { + int control; + const char *name; + int type; /* data type for uac1 */ + int type_uac2; /* data type for uac2 if different from uac1, else -1 */ +}; + +static const struct usb_feature_control_info audio_feature_info[] = { + { UAC_FU_MUTE, "Mute", USB_MIXER_INV_BOOLEAN, -1 }, + { UAC_FU_VOLUME, "Volume", USB_MIXER_S16, -1 }, + { UAC_FU_BASS, "Tone Control - Bass", USB_MIXER_S8, -1 }, + { UAC_FU_MID, "Tone Control - Mid", USB_MIXER_S8, -1 }, + { UAC_FU_TREBLE, "Tone Control - Treble", USB_MIXER_S8, -1 }, + { UAC_FU_GRAPHIC_EQUALIZER, "Graphic Equalizer", USB_MIXER_S8, -1 }, /* FIXME: not implemented yet */ + { UAC_FU_AUTOMATIC_GAIN, "Auto Gain Control", USB_MIXER_BOOLEAN, -1 }, + { UAC_FU_DELAY, "Delay Control", USB_MIXER_U16, USB_MIXER_U32 }, + { UAC_FU_BASS_BOOST, "Bass Boost", USB_MIXER_BOOLEAN, -1 }, + { UAC_FU_LOUDNESS, "Loudness", USB_MIXER_BOOLEAN, -1 }, + /* UAC2 specific */ + { UAC2_FU_INPUT_GAIN, "Input Gain Control", USB_MIXER_S16, -1 }, + { UAC2_FU_INPUT_GAIN_PAD, "Input Gain Pad Control", USB_MIXER_S16, -1 }, + { UAC2_FU_PHASE_INVERTER, "Phase Inverter Control", USB_MIXER_BOOLEAN, -1 }, +}; + +static void usb_mixer_elem_info_free(struct usb_mixer_elem_info *cval) +{ + kfree(cval); +} + +/* private_free callback */ +void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl) +{ + usb_mixer_elem_info_free(kctl->private_data); + kctl->private_data = NULL; +} + +/* + * interface to ALSA control for feature/mixer units + */ + +/* volume control quirks */ +static void volume_control_quirks(struct usb_mixer_elem_info *cval, + struct snd_kcontrol *kctl) +{ + struct snd_usb_audio *chip = cval->head.mixer->chip; + switch (chip->usb_id) { + case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ + case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ + if (strcmp(kctl->id.name, "Effect Duration") == 0) { + cval->min = 0x0000; + cval->max = 0xffff; + cval->res = 0x00e6; + break; + } + if (strcmp(kctl->id.name, "Effect Volume") == 0 || + strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { + cval->min = 0x00; + cval->max = 0xff; + break; + } + if (strstr(kctl->id.name, "Effect Return") != NULL) { + cval->min = 0xb706; + cval->max = 0xff7b; + cval->res = 0x0073; + break; + } + if ((strstr(kctl->id.name, "Playback Volume") != NULL) || + (strstr(kctl->id.name, "Effect Send") != NULL)) { + cval->min = 0xb5fb; /* -73 dB = 0xb6ff */ + cval->max = 0xfcfe; + cval->res = 0x0073; + } + break; + + case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ + case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ + if (strcmp(kctl->id.name, "Effect Duration") == 0) { + usb_audio_info(chip, + "set quirk for FTU Effect Duration\n"); + cval->min = 0x0000; + cval->max = 0x7f00; + cval->res = 0x0100; + break; + } + if (strcmp(kctl->id.name, "Effect Volume") == 0 || + strcmp(kctl->id.name, "Effect Feedback Volume") == 0) { + usb_audio_info(chip, + "set quirks for FTU Effect Feedback/Volume\n"); + cval->min = 0x00; + cval->max = 0x7f; + break; + } + break; + + case USB_ID(0x0d8c, 0x0103): + if (!strcmp(kctl->id.name, "PCM Playback Volume")) { + usb_audio_info(chip, + "set volume quirk for CM102-A+/102S+\n"); + cval->min = -256; + } + break; + + case USB_ID(0x0471, 0x0101): + case USB_ID(0x0471, 0x0104): + case USB_ID(0x0471, 0x0105): + case USB_ID(0x0672, 0x1041): + /* quirk for UDA1321/N101. + * note that detection between firmware 2.1.1.7 (N101) + * and later 2.1.1.21 is not very clear from datasheets. + * I hope that the min value is -15360 for newer firmware --jk + */ + if (!strcmp(kctl->id.name, "PCM Playback Volume") && + cval->min == -15616) { + usb_audio_info(chip, + "set volume quirk for UDA1321/N101 chip\n"); + cval->max = -256; + } + break; + + case USB_ID(0x046d, 0x09a4): + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + usb_audio_info(chip, + "set volume quirk for QuickCam E3500\n"); + cval->min = 6080; + cval->max = 8768; + cval->res = 192; + } + break; + + case USB_ID(0x046d, 0x0807): /* Logitech Webcam C500 */ + case USB_ID(0x046d, 0x0808): + case USB_ID(0x046d, 0x0809): + case USB_ID(0x046d, 0x0819): /* Logitech Webcam C210 */ + case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */ + case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */ + case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */ + case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */ + case USB_ID(0x046d, 0x08ca): /* Logitech Quickcam Fusion */ + case USB_ID(0x046d, 0x0991): + case USB_ID(0x046d, 0x09a2): /* QuickCam Communicate Deluxe/S7500 */ + /* Most audio usb devices lie about volume resolution. + * Most Logitech webcams have res = 384. + * Probably there is some logitech magic behind this number --fishor + */ + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + usb_audio_info(chip, + "set resolution quirk: cval->res = 384\n"); + cval->res = 384; + } + break; + case USB_ID(0x0495, 0x3042): /* ESS Technology Asus USB DAC */ + if ((strstr(kctl->id.name, "Playback Volume") != NULL) || + strstr(kctl->id.name, "Capture Volume") != NULL) { + cval->min >>= 8; + cval->max = 0; + cval->res = 1; + } + break; + case USB_ID(0x1224, 0x2a25): /* Jieli Technology USB PHY 2.0 */ + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + usb_audio_info(chip, + "set resolution quirk: cval->res = 16\n"); + cval->res = 16; + } + break; + case USB_ID(0x1bcf, 0x2283): /* NexiGo N930AF FHD Webcam */ + if (!strcmp(kctl->id.name, "Mic Capture Volume")) { + usb_audio_info(chip, + "set resolution quirk: cval->res = 16\n"); + cval->res = 16; + } + break; + } +} + +/* forcibly initialize the current mixer value; if GET_CUR fails, set to + * the minimum as default + */ +static void init_cur_mix_raw(struct usb_mixer_elem_info *cval, int ch, int idx) +{ + int val, err; + + err = snd_usb_get_cur_mix_value(cval, ch, idx, &val); + if (!err) + return; + if (!cval->head.mixer->ignore_ctl_error) + usb_audio_warn(cval->head.mixer->chip, + "%d:%d: failed to get current value for ch %d (%d)\n", + cval->head.id, mixer_ctrl_intf(cval->head.mixer), + ch, err); + snd_usb_set_cur_mix_value(cval, ch, idx, cval->min); +} + +/* + * retrieve the minimum and maximum values for the specified control + */ +static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval, + int default_min, struct snd_kcontrol *kctl) +{ + int i, idx; + + /* for failsafe */ + cval->min = default_min; + cval->max = cval->min + 1; + cval->res = 1; + cval->dBmin = cval->dBmax = 0; + + if (cval->val_type == USB_MIXER_BOOLEAN || + cval->val_type == USB_MIXER_INV_BOOLEAN) { + cval->initialized = 1; + } else { + int minchn = 0; + if (cval->cmask) { + for (i = 0; i < MAX_CHANNELS; i++) + if (cval->cmask & (1 << i)) { + minchn = i + 1; + break; + } + } + if (get_ctl_value(cval, UAC_GET_MAX, (cval->control << 8) | minchn, &cval->max) < 0 || + get_ctl_value(cval, UAC_GET_MIN, (cval->control << 8) | minchn, &cval->min) < 0) { + usb_audio_err(cval->head.mixer->chip, + "%d:%d: cannot get min/max values for control %d (id %d)\n", + cval->head.id, mixer_ctrl_intf(cval->head.mixer), + cval->control, cval->head.id); + return -EINVAL; + } + if (get_ctl_value(cval, UAC_GET_RES, + (cval->control << 8) | minchn, + &cval->res) < 0) { + cval->res = 1; + } else if (cval->head.mixer->protocol == UAC_VERSION_1) { + int last_valid_res = cval->res; + + while (cval->res > 1) { + if (snd_usb_mixer_set_ctl_value(cval, UAC_SET_RES, + (cval->control << 8) | minchn, + cval->res / 2) < 0) + break; + cval->res /= 2; + } + if (get_ctl_value(cval, UAC_GET_RES, + (cval->control << 8) | minchn, &cval->res) < 0) + cval->res = last_valid_res; + } + if (cval->res == 0) + cval->res = 1; + + /* Additional checks for the proper resolution + * + * Some devices report smaller resolutions than actually + * reacting. They don't return errors but simply clip + * to the lower aligned value. + */ + if (cval->min + cval->res < cval->max) { + int last_valid_res = cval->res; + int saved, test, check; + if (get_cur_mix_raw(cval, minchn, &saved) < 0) + goto no_res_check; + for (;;) { + test = saved; + if (test < cval->max) + test += cval->res; + else + test -= cval->res; + if (test < cval->min || test > cval->max || + snd_usb_set_cur_mix_value(cval, minchn, 0, test) || + get_cur_mix_raw(cval, minchn, &check)) { + cval->res = last_valid_res; + break; + } + if (test == check) + break; + cval->res *= 2; + } + snd_usb_set_cur_mix_value(cval, minchn, 0, saved); + } + +no_res_check: + cval->initialized = 1; + } + + if (kctl) + volume_control_quirks(cval, kctl); + + /* USB descriptions contain the dB scale in 1/256 dB unit + * while ALSA TLV contains in 1/100 dB unit + */ + cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256; + cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256; + if (cval->dBmin > cval->dBmax) { + /* something is wrong; assume it's either from/to 0dB */ + if (cval->dBmin < 0) + cval->dBmax = 0; + else if (cval->dBmin > 0) + cval->dBmin = 0; + if (cval->dBmin > cval->dBmax) { + /* totally crap, return an error */ + return -EINVAL; + } + } else { + /* if the max volume is too low, it's likely a bogus range; + * here we use -96dB as the threshold + */ + if (cval->dBmax <= -9600) { + usb_audio_info(cval->head.mixer->chip, + "%d:%d: bogus dB values (%d/%d), disabling dB reporting\n", + cval->head.id, mixer_ctrl_intf(cval->head.mixer), + cval->dBmin, cval->dBmax); + cval->dBmin = cval->dBmax = 0; + } + } + + /* initialize all elements */ + if (!cval->cmask) { + init_cur_mix_raw(cval, 0, 0); + } else { + idx = 0; + for (i = 0; i < MAX_CHANNELS; i++) { + if (cval->cmask & (1 << i)) { + init_cur_mix_raw(cval, i + 1, idx); + idx++; + } + } + } + + return 0; +} + +#define get_min_max(cval, def) get_min_max_with_quirks(cval, def, NULL) + +/* get a feature/mixer unit info */ +static int mixer_ctl_feature_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + + if (cval->val_type == USB_MIXER_BOOLEAN || + cval->val_type == USB_MIXER_INV_BOOLEAN) + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + else + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = cval->channels; + if (cval->val_type == USB_MIXER_BOOLEAN || + cval->val_type == USB_MIXER_INV_BOOLEAN) { + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + } else { + if (!cval->initialized) { + get_min_max_with_quirks(cval, 0, kcontrol); + if (cval->initialized && cval->dBmin >= cval->dBmax) { + kcontrol->vd[0].access &= + ~(SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK); + snd_ctl_notify(cval->head.mixer->chip->card, + SNDRV_CTL_EVENT_MASK_INFO, + &kcontrol->id); + } + } + uinfo->value.integer.min = 0; + uinfo->value.integer.max = + DIV_ROUND_UP(cval->max - cval->min, cval->res); + } + return 0; +} + +/* get the current value from feature/mixer unit */ +static int mixer_ctl_feature_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int c, cnt, val, err; + + ucontrol->value.integer.value[0] = cval->min; + if (cval->cmask) { + cnt = 0; + for (c = 0; c < MAX_CHANNELS; c++) { + if (!(cval->cmask & (1 << c))) + continue; + err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &val); + if (err < 0) + return filter_error(cval, err); + val = get_relative_value(cval, val); + ucontrol->value.integer.value[cnt] = val; + cnt++; + } + return 0; + } else { + /* master channel */ + err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); + if (err < 0) + return filter_error(cval, err); + val = get_relative_value(cval, val); + ucontrol->value.integer.value[0] = val; + } + return 0; +} + +/* put the current value to feature/mixer unit */ +static int mixer_ctl_feature_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int c, cnt, val, oval, err; + int changed = 0; + + if (cval->cmask) { + cnt = 0; + for (c = 0; c < MAX_CHANNELS; c++) { + if (!(cval->cmask & (1 << c))) + continue; + err = snd_usb_get_cur_mix_value(cval, c + 1, cnt, &oval); + if (err < 0) + return filter_error(cval, err); + val = ucontrol->value.integer.value[cnt]; + val = get_abs_value(cval, val); + if (oval != val) { + snd_usb_set_cur_mix_value(cval, c + 1, cnt, val); + changed = 1; + } + cnt++; + } + } else { + /* master channel */ + err = snd_usb_get_cur_mix_value(cval, 0, 0, &oval); + if (err < 0) + return filter_error(cval, err); + val = ucontrol->value.integer.value[0]; + val = get_abs_value(cval, val); + if (val != oval) { + snd_usb_set_cur_mix_value(cval, 0, 0, val); + changed = 1; + } + } + return changed; +} + +/* get the boolean value from the master channel of a UAC control */ +static int mixer_ctl_master_bool_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int val, err; + + err = snd_usb_get_cur_mix_value(cval, 0, 0, &val); + if (err < 0) + return filter_error(cval, err); + val = (val != 0); + ucontrol->value.integer.value[0] = val; + return 0; +} + +static int get_connector_value(struct usb_mixer_elem_info *cval, + char *name, int *val) +{ + struct snd_usb_audio *chip = cval->head.mixer->chip; + int idx = 0, validx, ret; + + validx = cval->control << 8 | 0; + + ret = snd_usb_lock_shutdown(chip) ? -EIO : 0; + if (ret) + goto error; + + idx = mixer_ctrl_intf(cval->head.mixer) | (cval->head.id << 8); + if (cval->head.mixer->protocol == UAC_VERSION_2) { + struct uac2_connectors_ctl_blk uac2_conn; + + ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + validx, idx, &uac2_conn, sizeof(uac2_conn)); + if (val) + *val = !!uac2_conn.bNrChannels; + } else { /* UAC_VERSION_3 */ + struct uac3_insertion_ctl_blk uac3_conn; + + ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), UAC2_CS_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + validx, idx, &uac3_conn, sizeof(uac3_conn)); + if (val) + *val = !!uac3_conn.bmConInserted; + } + + snd_usb_unlock_shutdown(chip); + + if (ret < 0) { + if (name && strstr(name, "Speaker")) { + if (val) + *val = 1; + return 0; + } +error: + usb_audio_err(chip, + "cannot get connectors status: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n", + UAC_GET_CUR, validx, idx, cval->val_type); + + if (val) + *val = 0; + + return filter_error(cval, ret); + } + + return ret; +} + +/* get the connectors status and report it as boolean type */ +static int mixer_ctl_connector_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int ret, val; + + ret = get_connector_value(cval, kcontrol->id.name, &val); + + if (ret < 0) + return ret; + + ucontrol->value.integer.value[0] = val; + return 0; +} + +static const struct snd_kcontrol_new usb_feature_unit_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", /* will be filled later manually */ + .info = mixer_ctl_feature_info, + .get = mixer_ctl_feature_get, + .put = mixer_ctl_feature_put, +}; + +/* the read-only variant */ +static const struct snd_kcontrol_new usb_feature_unit_ctl_ro = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", /* will be filled later manually */ + .info = mixer_ctl_feature_info, + .get = mixer_ctl_feature_get, + .put = NULL, +}; + +/* + * A control which shows the boolean value from reading a UAC control on + * the master channel. + */ +static const struct snd_kcontrol_new usb_bool_master_control_ctl_ro = { + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .name = "", /* will be filled later manually */ + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_ctl_boolean_mono_info, + .get = mixer_ctl_master_bool_get, + .put = NULL, +}; + +static const struct snd_kcontrol_new usb_connector_ctl_ro = { + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .name = "", /* will be filled later manually */ + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_ctl_boolean_mono_info, + .get = mixer_ctl_connector_get, + .put = NULL, +}; + +/* + * This symbol is exported in order to allow the mixer quirks to + * hook up to the standard feature unit control mechanism + */ +const struct snd_kcontrol_new *snd_usb_feature_unit_ctl = &usb_feature_unit_ctl; + +/* + * build a feature control + */ +static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) +{ + return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); +} + +/* + * A lot of headsets/headphones have a "Speaker" mixer. Make sure we + * rename it to "Headphone". We determine if something is a headphone + * similar to how udev determines form factor. + */ +static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, + struct snd_card *card) +{ + static const char * const names_to_check[] = { + "Headset", "headset", "Headphone", "headphone", NULL}; + const char * const *s; + bool found = false; + + if (strcmp("Speaker", kctl->id.name)) + return; + + for (s = names_to_check; *s; s++) + if (strstr(card->shortname, *s)) { + found = true; + break; + } + + if (!found) + return; + + snd_ctl_rename(card, kctl, "Headphone"); +} + +static const struct usb_feature_control_info *get_feature_control_info(int control) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(audio_feature_info); ++i) { + if (audio_feature_info[i].control == control) + return &audio_feature_info[i]; + } + return NULL; +} + +static void __build_feature_ctl(struct usb_mixer_interface *mixer, + const struct usbmix_name_map *imap, + unsigned int ctl_mask, int control, + struct usb_audio_term *iterm, + struct usb_audio_term *oterm, + int unitid, int nameid, int readonly_mask) +{ + const struct usb_feature_control_info *ctl_info; + unsigned int len = 0; + int mapped_name = 0; + struct snd_kcontrol *kctl; + struct usb_mixer_elem_info *cval; + const struct usbmix_name_map *map; + unsigned int range; + + if (control == UAC_FU_GRAPHIC_EQUALIZER) { + /* FIXME: not supported yet */ + return; + } + + map = find_map(imap, unitid, control); + if (check_ignored_ctl(map)) + return; + + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return; + snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid); + cval->control = control; + cval->cmask = ctl_mask; + + ctl_info = get_feature_control_info(control); + if (!ctl_info) { + usb_mixer_elem_info_free(cval); + return; + } + if (mixer->protocol == UAC_VERSION_1) + cval->val_type = ctl_info->type; + else /* UAC_VERSION_2 */ + cval->val_type = ctl_info->type_uac2 >= 0 ? + ctl_info->type_uac2 : ctl_info->type; + + if (ctl_mask == 0) { + cval->channels = 1; /* master channel */ + cval->master_readonly = readonly_mask; + } else { + int i, c = 0; + for (i = 0; i < 16; i++) + if (ctl_mask & (1 << i)) + c++; + cval->channels = c; + cval->ch_readonly = readonly_mask; + } + + /* + * If all channels in the mask are marked read-only, make the control + * read-only. snd_usb_set_cur_mix_value() will check the mask again and won't + * issue write commands to read-only channels. + */ + if (cval->channels == readonly_mask) + kctl = snd_ctl_new1(&usb_feature_unit_ctl_ro, cval); + else + kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); + + if (!kctl) { + usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); + usb_mixer_elem_info_free(cval); + return; + } + kctl->private_free = snd_usb_mixer_elem_free; + + len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); + mapped_name = len != 0; + if (!len && nameid) + len = snd_usb_copy_string_desc(mixer->chip, nameid, + kctl->id.name, sizeof(kctl->id.name)); + + switch (control) { + case UAC_FU_MUTE: + case UAC_FU_VOLUME: + /* + * determine the control name. the rule is: + * - if a name id is given in descriptor, use it. + * - if the connected input can be determined, then use the name + * of terminal type. + * - if the connected output can be determined, use it. + * - otherwise, anonymous name. + */ + if (!len) { + if (iterm) + len = get_term_name(mixer->chip, iterm, + kctl->id.name, + sizeof(kctl->id.name), 1); + if (!len && oterm) + len = get_term_name(mixer->chip, oterm, + kctl->id.name, + sizeof(kctl->id.name), 1); + if (!len) + snprintf(kctl->id.name, sizeof(kctl->id.name), + "Feature %d", unitid); + } + + if (!mapped_name) + check_no_speaker_on_headset(kctl, mixer->chip->card); + + /* + * determine the stream direction: + * if the connected output is USB stream, then it's likely a + * capture stream. otherwise it should be playback (hopefully :) + */ + if (!mapped_name && oterm && !(oterm->type >> 16)) { + if ((oterm->type & 0xff00) == 0x0100) + append_ctl_name(kctl, " Capture"); + else + append_ctl_name(kctl, " Playback"); + } + append_ctl_name(kctl, control == UAC_FU_MUTE ? + " Switch" : " Volume"); + break; + default: + if (!len) + strscpy(kctl->id.name, audio_feature_info[control-1].name, + sizeof(kctl->id.name)); + break; + } + + /* get min/max values */ + get_min_max_with_quirks(cval, 0, kctl); + + /* skip a bogus volume range */ + if (cval->max <= cval->min) { + usb_audio_dbg(mixer->chip, + "[%d] FU [%s] skipped due to invalid volume\n", + cval->head.id, kctl->id.name); + snd_ctl_free_one(kctl); + return; + } + + + if (control == UAC_FU_VOLUME) { + check_mapped_dB(map, cval); + if (cval->dBmin < cval->dBmax || !cval->initialized) { + kctl->tlv.c = snd_usb_mixer_vol_tlv; + kctl->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; + } + } + + snd_usb_mixer_fu_apply_quirk(mixer, cval, unitid, kctl); + + range = (cval->max - cval->min) / cval->res; + /* + * Are there devices with volume range more than 255? I use a bit more + * to be sure. 384 is a resolution magic number found on Logitech + * devices. It will definitively catch all buggy Logitech devices. + */ + if (range > 384) { + usb_audio_warn(mixer->chip, + "Warning! Unlikely big volume range (=%u), cval->res is probably wrong.", + range); + usb_audio_warn(mixer->chip, + "[%d] FU [%s] ch = %d, val = %d/%d/%d", + cval->head.id, kctl->id.name, cval->channels, + cval->min, cval->max, cval->res); + } + + usb_audio_dbg(mixer->chip, "[%d] FU [%s] ch = %d, val = %d/%d/%d\n", + cval->head.id, kctl->id.name, cval->channels, + cval->min, cval->max, cval->res); + snd_usb_mixer_add_control(&cval->head, kctl); +} + +static void build_feature_ctl(struct mixer_build *state, void *raw_desc, + unsigned int ctl_mask, int control, + struct usb_audio_term *iterm, int unitid, + int readonly_mask) +{ + struct uac_feature_unit_descriptor *desc = raw_desc; + int nameid = uac_feature_unit_iFeature(desc); + + __build_feature_ctl(state->mixer, state->map, ctl_mask, control, + iterm, &state->oterm, unitid, nameid, readonly_mask); +} + +static void build_feature_ctl_badd(struct usb_mixer_interface *mixer, + unsigned int ctl_mask, int control, int unitid, + const struct usbmix_name_map *badd_map) +{ + __build_feature_ctl(mixer, badd_map, ctl_mask, control, + NULL, NULL, unitid, 0, 0); +} + +static void get_connector_control_name(struct usb_mixer_interface *mixer, + struct usb_audio_term *term, + bool is_input, char *name, int name_size) +{ + int name_len = get_term_name(mixer->chip, term, name, name_size, 0); + + if (name_len == 0) + strscpy(name, "Unknown", name_size); + + /* + * sound/core/ctljack.c has a convention of naming jack controls + * by ending in " Jack". Make it slightly more useful by + * indicating Input or Output after the terminal name. + */ + if (is_input) + strlcat(name, " - Input Jack", name_size); + else + strlcat(name, " - Output Jack", name_size); +} + +/* get connector value to "wake up" the USB audio */ +static int connector_mixer_resume(struct usb_mixer_elem_list *list) +{ + struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); + + get_connector_value(cval, NULL, NULL); + return 0; +} + +/* Build a mixer control for a UAC connector control (jack-detect) */ +static void build_connector_control(struct usb_mixer_interface *mixer, + const struct usbmix_name_map *imap, + struct usb_audio_term *term, bool is_input) +{ + struct snd_kcontrol *kctl; + struct usb_mixer_elem_info *cval; + const struct usbmix_name_map *map; + + map = find_map(imap, term->id, 0); + if (check_ignored_ctl(map)) + return; + + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return; + snd_usb_mixer_elem_init_std(&cval->head, mixer, term->id); + + /* set up a specific resume callback */ + cval->head.resume = connector_mixer_resume; + + /* + * UAC2: The first byte from reading the UAC2_TE_CONNECTOR control returns the + * number of channels connected. + * + * UAC3: The first byte specifies size of bitmap for the inserted controls. The + * following byte(s) specifies which connectors are inserted. + * + * This boolean ctl will simply report if any channels are connected + * or not. + */ + if (mixer->protocol == UAC_VERSION_2) + cval->control = UAC2_TE_CONNECTOR; + else /* UAC_VERSION_3 */ + cval->control = UAC3_TE_INSERTION; + + cval->val_type = USB_MIXER_BOOLEAN; + cval->channels = 1; /* report true if any channel is connected */ + cval->min = 0; + cval->max = 1; + kctl = snd_ctl_new1(&usb_connector_ctl_ro, cval); + if (!kctl) { + usb_audio_err(mixer->chip, "cannot malloc kcontrol\n"); + usb_mixer_elem_info_free(cval); + return; + } + + if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) + strlcat(kctl->id.name, " Jack", sizeof(kctl->id.name)); + else + get_connector_control_name(mixer, term, is_input, kctl->id.name, + sizeof(kctl->id.name)); + kctl->private_free = snd_usb_mixer_elem_free; + snd_usb_mixer_add_control(&cval->head, kctl); +} + +static int parse_clock_source_unit(struct mixer_build *state, int unitid, + void *_ftr) +{ + struct uac_clock_source_descriptor *hdr = _ftr; + struct usb_mixer_elem_info *cval; + struct snd_kcontrol *kctl; + char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + int ret; + + if (state->mixer->protocol != UAC_VERSION_2) + return -EINVAL; + + /* + * The only property of this unit we are interested in is the + * clock source validity. If that isn't readable, just bail out. + */ + if (!uac_v2v3_control_is_readable(hdr->bmControls, + UAC2_CS_CONTROL_CLOCK_VALID)) + return 0; + + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return -ENOMEM; + + snd_usb_mixer_elem_init_std(&cval->head, state->mixer, hdr->bClockID); + + cval->min = 0; + cval->max = 1; + cval->channels = 1; + cval->val_type = USB_MIXER_BOOLEAN; + cval->control = UAC2_CS_CONTROL_CLOCK_VALID; + + cval->master_readonly = 1; + /* From UAC2 5.2.5.1.2 "Only the get request is supported." */ + kctl = snd_ctl_new1(&usb_bool_master_control_ctl_ro, cval); + + if (!kctl) { + usb_mixer_elem_info_free(cval); + return -ENOMEM; + } + + kctl->private_free = snd_usb_mixer_elem_free; + ret = snd_usb_copy_string_desc(state->chip, hdr->iClockSource, + name, sizeof(name)); + if (ret > 0) + snprintf(kctl->id.name, sizeof(kctl->id.name), + "%s Validity", name); + else + snprintf(kctl->id.name, sizeof(kctl->id.name), + "Clock Source %d Validity", hdr->bClockID); + + return snd_usb_mixer_add_control(&cval->head, kctl); +} + +/* + * parse a feature unit + * + * most of controls are defined here. + */ +static int parse_audio_feature_unit(struct mixer_build *state, int unitid, + void *_ftr) +{ + int channels, i, j; + struct usb_audio_term iterm; + unsigned int master_bits; + int err, csize; + struct uac_feature_unit_descriptor *hdr = _ftr; + __u8 *bmaControls; + + if (state->mixer->protocol == UAC_VERSION_1) { + csize = hdr->bControlSize; + channels = (hdr->bLength - 7) / csize - 1; + bmaControls = hdr->bmaControls; + } else if (state->mixer->protocol == UAC_VERSION_2) { + struct uac2_feature_unit_descriptor *ftr = _ftr; + csize = 4; + channels = (hdr->bLength - 6) / 4 - 1; + bmaControls = ftr->bmaControls; + } else { /* UAC_VERSION_3 */ + struct uac3_feature_unit_descriptor *ftr = _ftr; + + csize = 4; + channels = (ftr->bLength - 7) / 4 - 1; + bmaControls = ftr->bmaControls; + } + + /* parse the source unit */ + err = parse_audio_unit(state, hdr->bSourceID); + if (err < 0) + return err; + + /* determine the input source type and name */ + err = check_input_term(state, hdr->bSourceID, &iterm); + if (err < 0) + return err; + + master_bits = snd_usb_combine_bytes(bmaControls, csize); + /* master configuration quirks */ + switch (state->chip->usb_id) { + case USB_ID(0x08bb, 0x2702): + usb_audio_info(state->chip, + "usbmixer: master volume quirk for PCM2702 chip\n"); + /* disable non-functional volume control */ + master_bits &= ~UAC_CONTROL_BIT(UAC_FU_VOLUME); + break; + case USB_ID(0x1130, 0xf211): + usb_audio_info(state->chip, + "usbmixer: volume control quirk for Tenx TP6911 Audio Headset\n"); + /* disable non-functional volume control */ + channels = 0; + break; + + } + + if (state->mixer->protocol == UAC_VERSION_1) { + /* check all control types */ + for (i = 0; i < 10; i++) { + unsigned int ch_bits = 0; + int control = audio_feature_info[i].control; + + for (j = 0; j < channels; j++) { + unsigned int mask; + + mask = snd_usb_combine_bytes(bmaControls + + csize * (j+1), csize); + if (mask & (1 << i)) + ch_bits |= (1 << j); + } + /* audio class v1 controls are never read-only */ + + /* + * The first channel must be set + * (for ease of programming). + */ + if (ch_bits & 1) + build_feature_ctl(state, _ftr, ch_bits, control, + &iterm, unitid, 0); + if (master_bits & (1 << i)) + build_feature_ctl(state, _ftr, 0, control, + &iterm, unitid, 0); + } + } else { /* UAC_VERSION_2/3 */ + for (i = 0; i < ARRAY_SIZE(audio_feature_info); i++) { + unsigned int ch_bits = 0; + unsigned int ch_read_only = 0; + int control = audio_feature_info[i].control; + + for (j = 0; j < channels; j++) { + unsigned int mask; + + mask = snd_usb_combine_bytes(bmaControls + + csize * (j+1), csize); + if (uac_v2v3_control_is_readable(mask, control)) { + ch_bits |= (1 << j); + if (!uac_v2v3_control_is_writeable(mask, control)) + ch_read_only |= (1 << j); + } + } + + /* + * NOTE: build_feature_ctl() will mark the control + * read-only if all channels are marked read-only in + * the descriptors. Otherwise, the control will be + * reported as writeable, but the driver will not + * actually issue a write command for read-only + * channels. + */ + + /* + * The first channel must be set + * (for ease of programming). + */ + if (ch_bits & 1) + build_feature_ctl(state, _ftr, ch_bits, control, + &iterm, unitid, ch_read_only); + if (uac_v2v3_control_is_readable(master_bits, control)) + build_feature_ctl(state, _ftr, 0, control, + &iterm, unitid, + !uac_v2v3_control_is_writeable(master_bits, + control)); + } + } + + return 0; +} + +/* + * Mixer Unit + */ + +/* check whether the given in/out overflows bmMixerControls matrix */ +static bool mixer_bitmap_overflow(struct uac_mixer_unit_descriptor *desc, + int protocol, int num_ins, int num_outs) +{ + u8 *hdr = (u8 *)desc; + u8 *c = uac_mixer_unit_bmControls(desc, protocol); + size_t rest; /* remaining bytes after bmMixerControls */ + + switch (protocol) { + case UAC_VERSION_1: + default: + rest = 1; /* iMixer */ + break; + case UAC_VERSION_2: + rest = 2; /* bmControls + iMixer */ + break; + case UAC_VERSION_3: + rest = 6; /* bmControls + wMixerDescrStr */ + break; + } + + /* overflow? */ + return c + (num_ins * num_outs + 7) / 8 + rest > hdr + hdr[0]; +} + +/* + * build a mixer unit control + * + * the callbacks are identical with feature unit. + * input channel number (zero based) is given in control field instead. + */ +static void build_mixer_unit_ctl(struct mixer_build *state, + struct uac_mixer_unit_descriptor *desc, + int in_pin, int in_ch, int num_outs, + int unitid, struct usb_audio_term *iterm) +{ + struct usb_mixer_elem_info *cval; + unsigned int i, len; + struct snd_kcontrol *kctl; + const struct usbmix_name_map *map; + + map = find_map(state->map, unitid, 0); + if (check_ignored_ctl(map)) + return; + + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return; + + snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); + cval->control = in_ch + 1; /* based on 1 */ + cval->val_type = USB_MIXER_S16; + for (i = 0; i < num_outs; i++) { + __u8 *c = uac_mixer_unit_bmControls(desc, state->mixer->protocol); + + if (check_matrix_bitmap(c, in_ch, i, num_outs)) { + cval->cmask |= (1 << i); + cval->channels++; + } + } + + /* get min/max values */ + get_min_max(cval, 0); + + kctl = snd_ctl_new1(&usb_feature_unit_ctl, cval); + if (!kctl) { + usb_audio_err(state->chip, "cannot malloc kcontrol\n"); + usb_mixer_elem_info_free(cval); + return; + } + kctl->private_free = snd_usb_mixer_elem_free; + + len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); + if (!len) + len = get_term_name(state->chip, iterm, kctl->id.name, + sizeof(kctl->id.name), 0); + if (!len) + len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1); + append_ctl_name(kctl, " Volume"); + + usb_audio_dbg(state->chip, "[%d] MU [%s] ch = %d, val = %d/%d\n", + cval->head.id, kctl->id.name, cval->channels, cval->min, cval->max); + snd_usb_mixer_add_control(&cval->head, kctl); +} + +static int parse_audio_input_terminal(struct mixer_build *state, int unitid, + void *raw_desc) +{ + struct usb_audio_term iterm; + unsigned int control, bmctls, term_id; + + if (state->mixer->protocol == UAC_VERSION_2) { + struct uac2_input_terminal_descriptor *d_v2 = raw_desc; + control = UAC2_TE_CONNECTOR; + term_id = d_v2->bTerminalID; + bmctls = le16_to_cpu(d_v2->bmControls); + } else if (state->mixer->protocol == UAC_VERSION_3) { + struct uac3_input_terminal_descriptor *d_v3 = raw_desc; + control = UAC3_TE_INSERTION; + term_id = d_v3->bTerminalID; + bmctls = le32_to_cpu(d_v3->bmControls); + } else { + return 0; /* UAC1. No Insertion control */ + } + + check_input_term(state, term_id, &iterm); + + /* Check for jack detection. */ + if ((iterm.type & 0xff00) != 0x0100 && + uac_v2v3_control_is_readable(bmctls, control)) + build_connector_control(state->mixer, state->map, &iterm, true); + + return 0; +} + +/* + * parse a mixer unit + */ +static int parse_audio_mixer_unit(struct mixer_build *state, int unitid, + void *raw_desc) +{ + struct uac_mixer_unit_descriptor *desc = raw_desc; + struct usb_audio_term iterm; + int input_pins, num_ins, num_outs; + int pin, ich, err; + + err = uac_mixer_unit_get_channels(state, desc); + if (err < 0) { + usb_audio_err(state->chip, + "invalid MIXER UNIT descriptor %d\n", + unitid); + return err; + } + + num_outs = err; + input_pins = desc->bNrInPins; + + num_ins = 0; + ich = 0; + for (pin = 0; pin < input_pins; pin++) { + err = parse_audio_unit(state, desc->baSourceID[pin]); + if (err < 0) + continue; + /* no bmControls field (e.g. Maya44) -> ignore */ + if (!num_outs) + continue; + err = check_input_term(state, desc->baSourceID[pin], &iterm); + if (err < 0) + return err; + num_ins += iterm.channels; + if (mixer_bitmap_overflow(desc, state->mixer->protocol, + num_ins, num_outs)) + break; + for (; ich < num_ins; ich++) { + int och, ich_has_controls = 0; + + for (och = 0; och < num_outs; och++) { + __u8 *c = uac_mixer_unit_bmControls(desc, + state->mixer->protocol); + + if (check_matrix_bitmap(c, ich, och, num_outs)) { + ich_has_controls = 1; + break; + } + } + if (ich_has_controls) + build_mixer_unit_ctl(state, desc, pin, ich, num_outs, + unitid, &iterm); + } + } + return 0; +} + +/* + * Processing Unit / Extension Unit + */ + +/* get callback for processing/extension unit */ +static int mixer_ctl_procunit_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int err, val; + + err = get_cur_ctl_value(cval, cval->control << 8, &val); + if (err < 0) { + ucontrol->value.integer.value[0] = cval->min; + return filter_error(cval, err); + } + val = get_relative_value(cval, val); + ucontrol->value.integer.value[0] = val; + return 0; +} + +/* put callback for processing/extension unit */ +static int mixer_ctl_procunit_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int val, oval, err; + + err = get_cur_ctl_value(cval, cval->control << 8, &oval); + if (err < 0) + return filter_error(cval, err); + val = ucontrol->value.integer.value[0]; + val = get_abs_value(cval, val); + if (val != oval) { + set_cur_ctl_value(cval, cval->control << 8, val); + return 1; + } + return 0; +} + +/* alsa control interface for processing/extension unit */ +static const struct snd_kcontrol_new mixer_procunit_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", /* will be filled later */ + .info = mixer_ctl_feature_info, + .get = mixer_ctl_procunit_get, + .put = mixer_ctl_procunit_put, +}; + +/* + * predefined data for processing units + */ +struct procunit_value_info { + int control; + const char *suffix; + int val_type; + int min_value; +}; + +struct procunit_info { + int type; + char *name; + const struct procunit_value_info *values; +}; + +static const struct procunit_value_info undefined_proc_info[] = { + { 0x00, "Control Undefined", 0 }, + { 0 } +}; + +static const struct procunit_value_info updown_proc_info[] = { + { UAC_UD_ENABLE, "Switch", USB_MIXER_BOOLEAN }, + { UAC_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, + { 0 } +}; +static const struct procunit_value_info prologic_proc_info[] = { + { UAC_DP_ENABLE, "Switch", USB_MIXER_BOOLEAN }, + { UAC_DP_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, + { 0 } +}; +static const struct procunit_value_info threed_enh_proc_info[] = { + { UAC_3D_ENABLE, "Switch", USB_MIXER_BOOLEAN }, + { UAC_3D_SPACE, "Spaciousness", USB_MIXER_U8 }, + { 0 } +}; +static const struct procunit_value_info reverb_proc_info[] = { + { UAC_REVERB_ENABLE, "Switch", USB_MIXER_BOOLEAN }, + { UAC_REVERB_LEVEL, "Level", USB_MIXER_U8 }, + { UAC_REVERB_TIME, "Time", USB_MIXER_U16 }, + { UAC_REVERB_FEEDBACK, "Feedback", USB_MIXER_U8 }, + { 0 } +}; +static const struct procunit_value_info chorus_proc_info[] = { + { UAC_CHORUS_ENABLE, "Switch", USB_MIXER_BOOLEAN }, + { UAC_CHORUS_LEVEL, "Level", USB_MIXER_U8 }, + { UAC_CHORUS_RATE, "Rate", USB_MIXER_U16 }, + { UAC_CHORUS_DEPTH, "Depth", USB_MIXER_U16 }, + { 0 } +}; +static const struct procunit_value_info dcr_proc_info[] = { + { UAC_DCR_ENABLE, "Switch", USB_MIXER_BOOLEAN }, + { UAC_DCR_RATE, "Ratio", USB_MIXER_U16 }, + { UAC_DCR_MAXAMPL, "Max Amp", USB_MIXER_S16 }, + { UAC_DCR_THRESHOLD, "Threshold", USB_MIXER_S16 }, + { UAC_DCR_ATTACK_TIME, "Attack Time", USB_MIXER_U16 }, + { UAC_DCR_RELEASE_TIME, "Release Time", USB_MIXER_U16 }, + { 0 } +}; + +static const struct procunit_info procunits[] = { + { UAC_PROCESS_UP_DOWNMIX, "Up Down", updown_proc_info }, + { UAC_PROCESS_DOLBY_PROLOGIC, "Dolby Prologic", prologic_proc_info }, + { UAC_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", threed_enh_proc_info }, + { UAC_PROCESS_REVERB, "Reverb", reverb_proc_info }, + { UAC_PROCESS_CHORUS, "Chorus", chorus_proc_info }, + { UAC_PROCESS_DYN_RANGE_COMP, "DCR", dcr_proc_info }, + { 0 }, +}; + +static const struct procunit_value_info uac3_updown_proc_info[] = { + { UAC3_UD_MODE_SELECT, "Mode Select", USB_MIXER_U8, 1 }, + { 0 } +}; +static const struct procunit_value_info uac3_stereo_ext_proc_info[] = { + { UAC3_EXT_WIDTH_CONTROL, "Width Control", USB_MIXER_U8 }, + { 0 } +}; + +static const struct procunit_info uac3_procunits[] = { + { UAC3_PROCESS_UP_DOWNMIX, "Up Down", uac3_updown_proc_info }, + { UAC3_PROCESS_STEREO_EXTENDER, "3D Stereo Extender", uac3_stereo_ext_proc_info }, + { UAC3_PROCESS_MULTI_FUNCTION, "Multi-Function", undefined_proc_info }, + { 0 }, +}; + +/* + * predefined data for extension units + */ +static const struct procunit_value_info clock_rate_xu_info[] = { + { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 }, + { 0 } +}; +static const struct procunit_value_info clock_source_xu_info[] = { + { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN }, + { 0 } +}; +static const struct procunit_value_info spdif_format_xu_info[] = { + { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN }, + { 0 } +}; +static const struct procunit_value_info soft_limit_xu_info[] = { + { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN }, + { 0 } +}; +static const struct procunit_info extunits[] = { + { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info }, + { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info }, + { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info }, + { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info }, + { 0 } +}; + +/* + * build a processing/extension unit + */ +static int build_audio_procunit(struct mixer_build *state, int unitid, + void *raw_desc, const struct procunit_info *list, + bool extension_unit) +{ + struct uac_processing_unit_descriptor *desc = raw_desc; + int num_ins; + struct usb_mixer_elem_info *cval; + struct snd_kcontrol *kctl; + int i, err, nameid, type, len, val; + const struct procunit_info *info; + const struct procunit_value_info *valinfo; + const struct usbmix_name_map *map; + static const struct procunit_value_info default_value_info[] = { + { 0x01, "Switch", USB_MIXER_BOOLEAN }, + { 0 } + }; + static const struct procunit_info default_info = { + 0, NULL, default_value_info + }; + const char *name = extension_unit ? + "Extension Unit" : "Processing Unit"; + + num_ins = desc->bNrInPins; + for (i = 0; i < num_ins; i++) { + err = parse_audio_unit(state, desc->baSourceID[i]); + if (err < 0) + return err; + } + + type = le16_to_cpu(desc->wProcessType); + for (info = list; info && info->type; info++) + if (info->type == type) + break; + if (!info || !info->type) + info = &default_info; + + for (valinfo = info->values; valinfo->control; valinfo++) { + __u8 *controls = uac_processing_unit_bmControls(desc, state->mixer->protocol); + + if (state->mixer->protocol == UAC_VERSION_1) { + if (!(controls[valinfo->control / 8] & + (1 << ((valinfo->control % 8) - 1)))) + continue; + } else { /* UAC_VERSION_2/3 */ + if (!uac_v2v3_control_is_readable(controls[valinfo->control / 8], + valinfo->control)) + continue; + } + + map = find_map(state->map, unitid, valinfo->control); + if (check_ignored_ctl(map)) + continue; + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return -ENOMEM; + snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); + cval->control = valinfo->control; + cval->val_type = valinfo->val_type; + cval->channels = 1; + + if (state->mixer->protocol > UAC_VERSION_1 && + !uac_v2v3_control_is_writeable(controls[valinfo->control / 8], + valinfo->control)) + cval->master_readonly = 1; + + /* get min/max values */ + switch (type) { + case UAC_PROCESS_UP_DOWNMIX: { + bool mode_sel = false; + + switch (state->mixer->protocol) { + case UAC_VERSION_1: + case UAC_VERSION_2: + default: + if (cval->control == UAC_UD_MODE_SELECT) + mode_sel = true; + break; + case UAC_VERSION_3: + if (cval->control == UAC3_UD_MODE_SELECT) + mode_sel = true; + break; + } + + if (mode_sel) { + __u8 *control_spec = uac_processing_unit_specific(desc, + state->mixer->protocol); + cval->min = 1; + cval->max = control_spec[0]; + cval->res = 1; + cval->initialized = 1; + break; + } + + get_min_max(cval, valinfo->min_value); + break; + } + case USB_XU_CLOCK_RATE: + /* + * E-Mu USB 0404/0202/TrackerPre/0204 + * samplerate control quirk + */ + cval->min = 0; + cval->max = 5; + cval->res = 1; + cval->initialized = 1; + break; + default: + get_min_max(cval, valinfo->min_value); + break; + } + + err = get_cur_ctl_value(cval, cval->control << 8, &val); + if (err < 0) { + usb_mixer_elem_info_free(cval); + return -EINVAL; + } + + kctl = snd_ctl_new1(&mixer_procunit_ctl, cval); + if (!kctl) { + usb_mixer_elem_info_free(cval); + return -ENOMEM; + } + kctl->private_free = snd_usb_mixer_elem_free; + + if (check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name))) { + /* nothing */ ; + } else if (info->name) { + strscpy(kctl->id.name, info->name, sizeof(kctl->id.name)); + } else { + if (extension_unit) + nameid = uac_extension_unit_iExtension(desc, state->mixer->protocol); + else + nameid = uac_processing_unit_iProcessing(desc, state->mixer->protocol); + len = 0; + if (nameid) + len = snd_usb_copy_string_desc(state->chip, + nameid, + kctl->id.name, + sizeof(kctl->id.name)); + if (!len) + strscpy(kctl->id.name, name, sizeof(kctl->id.name)); + } + append_ctl_name(kctl, " "); + append_ctl_name(kctl, valinfo->suffix); + + usb_audio_dbg(state->chip, + "[%d] PU [%s] ch = %d, val = %d/%d\n", + cval->head.id, kctl->id.name, cval->channels, + cval->min, cval->max); + + err = snd_usb_mixer_add_control(&cval->head, kctl); + if (err < 0) + return err; + } + return 0; +} + +static int parse_audio_processing_unit(struct mixer_build *state, int unitid, + void *raw_desc) +{ + switch (state->mixer->protocol) { + case UAC_VERSION_1: + case UAC_VERSION_2: + default: + return build_audio_procunit(state, unitid, raw_desc, + procunits, false); + case UAC_VERSION_3: + return build_audio_procunit(state, unitid, raw_desc, + uac3_procunits, false); + } +} + +static int parse_audio_extension_unit(struct mixer_build *state, int unitid, + void *raw_desc) +{ + /* + * Note that we parse extension units with processing unit descriptors. + * That's ok as the layout is the same. + */ + return build_audio_procunit(state, unitid, raw_desc, extunits, true); +} + +/* + * Selector Unit + */ + +/* + * info callback for selector unit + * use an enumerator type for routing + */ +static int mixer_ctl_selector_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + const char **itemlist = (const char **)kcontrol->private_value; + + if (snd_BUG_ON(!itemlist)) + return -EINVAL; + return snd_ctl_enum_info(uinfo, 1, cval->max, itemlist); +} + +/* get callback for selector unit */ +static int mixer_ctl_selector_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int val, err; + + err = get_cur_ctl_value(cval, cval->control << 8, &val); + if (err < 0) { + ucontrol->value.enumerated.item[0] = 0; + return filter_error(cval, err); + } + val = get_relative_value(cval, val); + ucontrol->value.enumerated.item[0] = val; + return 0; +} + +/* put callback for selector unit */ +static int mixer_ctl_selector_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + int val, oval, err; + + err = get_cur_ctl_value(cval, cval->control << 8, &oval); + if (err < 0) + return filter_error(cval, err); + val = ucontrol->value.enumerated.item[0]; + val = get_abs_value(cval, val); + if (val != oval) { + set_cur_ctl_value(cval, cval->control << 8, val); + return 1; + } + return 0; +} + +/* alsa control interface for selector unit */ +static const struct snd_kcontrol_new mixer_selectunit_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", /* will be filled later */ + .info = mixer_ctl_selector_info, + .get = mixer_ctl_selector_get, + .put = mixer_ctl_selector_put, +}; + +/* + * private free callback. + * free both private_data and private_value + */ +static void usb_mixer_selector_elem_free(struct snd_kcontrol *kctl) +{ + int i, num_ins = 0; + + if (kctl->private_data) { + struct usb_mixer_elem_info *cval = kctl->private_data; + num_ins = cval->max; + usb_mixer_elem_info_free(cval); + kctl->private_data = NULL; + } + if (kctl->private_value) { + char **itemlist = (char **)kctl->private_value; + for (i = 0; i < num_ins; i++) + kfree(itemlist[i]); + kfree(itemlist); + kctl->private_value = 0; + } +} + +/* + * parse a selector unit + */ +static int parse_audio_selector_unit(struct mixer_build *state, int unitid, + void *raw_desc) +{ + struct uac_selector_unit_descriptor *desc = raw_desc; + unsigned int i, nameid, len; + int err; + struct usb_mixer_elem_info *cval; + struct snd_kcontrol *kctl; + const struct usbmix_name_map *map; + char **namelist; + + for (i = 0; i < desc->bNrInPins; i++) { + err = parse_audio_unit(state, desc->baSourceID[i]); + if (err < 0) + return err; + } + + if (desc->bNrInPins == 1) /* only one ? nonsense! */ + return 0; + + map = find_map(state->map, unitid, 0); + if (check_ignored_ctl(map)) + return 0; + + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return -ENOMEM; + snd_usb_mixer_elem_init_std(&cval->head, state->mixer, unitid); + cval->val_type = USB_MIXER_U8; + cval->channels = 1; + cval->min = 1; + cval->max = desc->bNrInPins; + cval->res = 1; + cval->initialized = 1; + + switch (state->mixer->protocol) { + case UAC_VERSION_1: + default: + cval->control = 0; + break; + case UAC_VERSION_2: + case UAC_VERSION_3: + if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || + desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) + cval->control = UAC2_CX_CLOCK_SELECTOR; + else /* UAC2/3_SELECTOR_UNIT */ + cval->control = UAC2_SU_SELECTOR; + break; + } + + namelist = kcalloc(desc->bNrInPins, sizeof(char *), GFP_KERNEL); + if (!namelist) { + err = -ENOMEM; + goto error_cval; + } +#define MAX_ITEM_NAME_LEN 64 + for (i = 0; i < desc->bNrInPins; i++) { + struct usb_audio_term iterm; + namelist[i] = kmalloc(MAX_ITEM_NAME_LEN, GFP_KERNEL); + if (!namelist[i]) { + err = -ENOMEM; + goto error_name; + } + len = check_mapped_selector_name(state, unitid, i, namelist[i], + MAX_ITEM_NAME_LEN); + if (! len && check_input_term(state, desc->baSourceID[i], &iterm) >= 0) + len = get_term_name(state->chip, &iterm, namelist[i], + MAX_ITEM_NAME_LEN, 0); + if (! len) + sprintf(namelist[i], "Input %u", i); + } + + kctl = snd_ctl_new1(&mixer_selectunit_ctl, cval); + if (! kctl) { + usb_audio_err(state->chip, "cannot malloc kcontrol\n"); + err = -ENOMEM; + goto error_name; + } + kctl->private_value = (unsigned long)namelist; + kctl->private_free = usb_mixer_selector_elem_free; + + /* check the static mapping table at first */ + len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name)); + if (!len) { + /* no mapping ? */ + switch (state->mixer->protocol) { + case UAC_VERSION_1: + case UAC_VERSION_2: + default: + /* if iSelector is given, use it */ + nameid = uac_selector_unit_iSelector(desc); + if (nameid) + len = snd_usb_copy_string_desc(state->chip, + nameid, kctl->id.name, + sizeof(kctl->id.name)); + break; + case UAC_VERSION_3: + /* TODO: Class-Specific strings not yet supported */ + break; + } + + /* ... or pick up the terminal name at next */ + if (!len) + len = get_term_name(state->chip, &state->oterm, + kctl->id.name, sizeof(kctl->id.name), 0); + /* ... or use the fixed string "USB" as the last resort */ + if (!len) + strscpy(kctl->id.name, "USB", sizeof(kctl->id.name)); + + /* and add the proper suffix */ + if (desc->bDescriptorSubtype == UAC2_CLOCK_SELECTOR || + desc->bDescriptorSubtype == UAC3_CLOCK_SELECTOR) + append_ctl_name(kctl, " Clock Source"); + else if ((state->oterm.type & 0xff00) == 0x0100) + append_ctl_name(kctl, " Capture Source"); + else + append_ctl_name(kctl, " Playback Source"); + } + + usb_audio_dbg(state->chip, "[%d] SU [%s] items = %d\n", + cval->head.id, kctl->id.name, desc->bNrInPins); + return snd_usb_mixer_add_control(&cval->head, kctl); + + error_name: + for (i = 0; i < desc->bNrInPins; i++) + kfree(namelist[i]); + kfree(namelist); + error_cval: + usb_mixer_elem_info_free(cval); + return err; +} + +/* + * parse an audio unit recursively + */ + +static int parse_audio_unit(struct mixer_build *state, int unitid) +{ + unsigned char *p1; + int protocol = state->mixer->protocol; + + if (test_and_set_bit(unitid, state->unitbitmap)) + return 0; /* the unit already visited */ + + p1 = find_audio_control_unit(state, unitid); + if (!p1) { + usb_audio_err(state->chip, "unit %d not found!\n", unitid); + return -EINVAL; + } + + if (!snd_usb_validate_audio_desc(p1, protocol)) { + usb_audio_dbg(state->chip, "invalid unit %d\n", unitid); + return 0; /* skip invalid unit */ + } + + switch (PTYPE(protocol, p1[2])) { + case PTYPE(UAC_VERSION_1, UAC_INPUT_TERMINAL): + case PTYPE(UAC_VERSION_2, UAC_INPUT_TERMINAL): + case PTYPE(UAC_VERSION_3, UAC_INPUT_TERMINAL): + return parse_audio_input_terminal(state, unitid, p1); + case PTYPE(UAC_VERSION_1, UAC_MIXER_UNIT): + case PTYPE(UAC_VERSION_2, UAC_MIXER_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_MIXER_UNIT): + return parse_audio_mixer_unit(state, unitid, p1); + case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SOURCE): + case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SOURCE): + return parse_clock_source_unit(state, unitid, p1); + case PTYPE(UAC_VERSION_1, UAC_SELECTOR_UNIT): + case PTYPE(UAC_VERSION_2, UAC_SELECTOR_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_SELECTOR_UNIT): + case PTYPE(UAC_VERSION_2, UAC2_CLOCK_SELECTOR): + case PTYPE(UAC_VERSION_3, UAC3_CLOCK_SELECTOR): + return parse_audio_selector_unit(state, unitid, p1); + case PTYPE(UAC_VERSION_1, UAC_FEATURE_UNIT): + case PTYPE(UAC_VERSION_2, UAC_FEATURE_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_FEATURE_UNIT): + return parse_audio_feature_unit(state, unitid, p1); + case PTYPE(UAC_VERSION_1, UAC1_PROCESSING_UNIT): + case PTYPE(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2): + case PTYPE(UAC_VERSION_3, UAC3_PROCESSING_UNIT): + return parse_audio_processing_unit(state, unitid, p1); + case PTYPE(UAC_VERSION_1, UAC1_EXTENSION_UNIT): + case PTYPE(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2): + case PTYPE(UAC_VERSION_3, UAC3_EXTENSION_UNIT): + return parse_audio_extension_unit(state, unitid, p1); + case PTYPE(UAC_VERSION_2, UAC2_EFFECT_UNIT): + case PTYPE(UAC_VERSION_3, UAC3_EFFECT_UNIT): + return 0; /* FIXME - effect units not implemented yet */ + default: + usb_audio_err(state->chip, + "unit %u: unexpected type 0x%02x\n", + unitid, p1[2]); + return -EINVAL; + } +} + +static void snd_usb_mixer_free(struct usb_mixer_interface *mixer) +{ + /* kill pending URBs */ + snd_usb_mixer_disconnect(mixer); + + kfree(mixer->id_elems); + if (mixer->urb) { + kfree(mixer->urb->transfer_buffer); + usb_free_urb(mixer->urb); + } + usb_free_urb(mixer->rc_urb); + kfree(mixer->rc_setup_packet); + kfree(mixer); +} + +static int snd_usb_mixer_dev_free(struct snd_device *device) +{ + struct usb_mixer_interface *mixer = device->device_data; + snd_usb_mixer_free(mixer); + return 0; +} + +/* UAC3 predefined channels configuration */ +struct uac3_badd_profile { + int subclass; + const char *name; + int c_chmask; /* capture channels mask */ + int p_chmask; /* playback channels mask */ + int st_chmask; /* side tone mixing channel mask */ +}; + +static const struct uac3_badd_profile uac3_badd_profiles[] = { + { + /* + * BAIF, BAOF or combination of both + * IN: Mono or Stereo cfg, Mono alt possible + * OUT: Mono or Stereo cfg, Mono alt possible + */ + .subclass = UAC3_FUNCTION_SUBCLASS_GENERIC_IO, + .name = "GENERIC IO", + .c_chmask = -1, /* dynamic channels */ + .p_chmask = -1, /* dynamic channels */ + }, + { + /* BAOF; Stereo only cfg, Mono alt possible */ + .subclass = UAC3_FUNCTION_SUBCLASS_HEADPHONE, + .name = "HEADPHONE", + .p_chmask = 3, + }, + { + /* BAOF; Mono or Stereo cfg, Mono alt possible */ + .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKER, + .name = "SPEAKER", + .p_chmask = -1, /* dynamic channels */ + }, + { + /* BAIF; Mono or Stereo cfg, Mono alt possible */ + .subclass = UAC3_FUNCTION_SUBCLASS_MICROPHONE, + .name = "MICROPHONE", + .c_chmask = -1, /* dynamic channels */ + }, + { + /* + * BAIOF topology + * IN: Mono only + * OUT: Mono or Stereo cfg, Mono alt possible + */ + .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET, + .name = "HEADSET", + .c_chmask = 1, + .p_chmask = -1, /* dynamic channels */ + .st_chmask = 1, + }, + { + /* BAIOF; IN: Mono only; OUT: Stereo only, Mono alt possible */ + .subclass = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER, + .name = "HEADSET ADAPTER", + .c_chmask = 1, + .p_chmask = 3, + .st_chmask = 1, + }, + { + /* BAIF + BAOF; IN: Mono only; OUT: Mono only */ + .subclass = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE, + .name = "SPEAKERPHONE", + .c_chmask = 1, + .p_chmask = 1, + }, + { 0 } /* terminator */ +}; + +static bool uac3_badd_func_has_valid_channels(struct usb_mixer_interface *mixer, + const struct uac3_badd_profile *f, + int c_chmask, int p_chmask) +{ + /* + * If both playback/capture channels are dynamic, make sure + * at least one channel is present + */ + if (f->c_chmask < 0 && f->p_chmask < 0) { + if (!c_chmask && !p_chmask) { + usb_audio_warn(mixer->chip, "BAAD %s: no channels?", + f->name); + return false; + } + return true; + } + + if ((f->c_chmask < 0 && !c_chmask) || + (f->c_chmask >= 0 && f->c_chmask != c_chmask)) { + usb_audio_warn(mixer->chip, "BAAD %s c_chmask mismatch", + f->name); + return false; + } + if ((f->p_chmask < 0 && !p_chmask) || + (f->p_chmask >= 0 && f->p_chmask != p_chmask)) { + usb_audio_warn(mixer->chip, "BAAD %s p_chmask mismatch", + f->name); + return false; + } + return true; +} + +/* + * create mixer controls for UAC3 BADD profiles + * + * UAC3 BADD device doesn't contain CS descriptors thus we will guess everything + * + * BADD device may contain Mixer Unit, which doesn't have any controls, skip it + */ +static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer, + int ctrlif) +{ + struct usb_device *dev = mixer->chip->dev; + struct usb_interface_assoc_descriptor *assoc; + int badd_profile = mixer->chip->badd_profile; + const struct uac3_badd_profile *f; + const struct usbmix_ctl_map *map; + int p_chmask = 0, c_chmask = 0, st_chmask = 0; + int i; + + assoc = usb_ifnum_to_if(dev, ctrlif)->intf_assoc; + + /* Detect BADD capture/playback channels from AS EP descriptors */ + for (i = 0; i < assoc->bInterfaceCount; i++) { + int intf = assoc->bFirstInterface + i; + + struct usb_interface *iface; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + unsigned int maxpacksize; + char dir_in; + int chmask, num; + + if (intf == ctrlif) + continue; + + iface = usb_ifnum_to_if(dev, intf); + if (!iface) + continue; + + num = iface->num_altsetting; + + if (num < 2) + return -EINVAL; + + /* + * The number of Channels in an AudioStreaming interface + * and the audio sample bit resolution (16 bits or 24 + * bits) can be derived from the wMaxPacketSize field in + * the Standard AS Audio Data Endpoint descriptor in + * Alternate Setting 1 + */ + alts = &iface->altsetting[1]; + altsd = get_iface_desc(alts); + + if (altsd->bNumEndpoints < 1) + return -EINVAL; + + /* check direction */ + dir_in = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN); + maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); + + switch (maxpacksize) { + default: + usb_audio_err(mixer->chip, + "incorrect wMaxPacketSize 0x%x for BADD profile\n", + maxpacksize); + return -EINVAL; + case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: + case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: + chmask = 1; + break; + case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: + case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: + chmask = 3; + break; + } + + if (dir_in) + c_chmask = chmask; + else + p_chmask = chmask; + } + + usb_audio_dbg(mixer->chip, + "UAC3 BADD profile 0x%x: detected c_chmask=%d p_chmask=%d\n", + badd_profile, c_chmask, p_chmask); + + /* check the mapping table */ + for (map = uac3_badd_usbmix_ctl_maps; map->id; map++) { + if (map->id == badd_profile) + break; + } + + if (!map->id) + return -EINVAL; + + for (f = uac3_badd_profiles; f->name; f++) { + if (badd_profile == f->subclass) + break; + } + if (!f->name) + return -EINVAL; + if (!uac3_badd_func_has_valid_channels(mixer, f, c_chmask, p_chmask)) + return -EINVAL; + st_chmask = f->st_chmask; + + /* Playback */ + if (p_chmask) { + /* Master channel, always writable */ + build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, + UAC3_BADD_FU_ID2, map->map); + /* Mono/Stereo volume channels, always writable */ + build_feature_ctl_badd(mixer, p_chmask, UAC_FU_VOLUME, + UAC3_BADD_FU_ID2, map->map); + } + + /* Capture */ + if (c_chmask) { + /* Master channel, always writable */ + build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, + UAC3_BADD_FU_ID5, map->map); + /* Mono/Stereo volume channels, always writable */ + build_feature_ctl_badd(mixer, c_chmask, UAC_FU_VOLUME, + UAC3_BADD_FU_ID5, map->map); + } + + /* Side tone-mixing */ + if (st_chmask) { + /* Master channel, always writable */ + build_feature_ctl_badd(mixer, 0, UAC_FU_MUTE, + UAC3_BADD_FU_ID7, map->map); + /* Mono volume channel, always writable */ + build_feature_ctl_badd(mixer, 1, UAC_FU_VOLUME, + UAC3_BADD_FU_ID7, map->map); + } + + /* Insertion Control */ + if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) { + struct usb_audio_term iterm, oterm; + + /* Input Term - Insertion control */ + memset(&iterm, 0, sizeof(iterm)); + iterm.id = UAC3_BADD_IT_ID4; + iterm.type = UAC_BIDIR_TERMINAL_HEADSET; + build_connector_control(mixer, map->map, &iterm, true); + + /* Output Term - Insertion control */ + memset(&oterm, 0, sizeof(oterm)); + oterm.id = UAC3_BADD_OT_ID3; + oterm.type = UAC_BIDIR_TERMINAL_HEADSET; + build_connector_control(mixer, map->map, &oterm, false); + } + + return 0; +} + +/* + * create mixer controls + * + * walk through all UAC_OUTPUT_TERMINAL descriptors to search for mixers + */ +static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) +{ + struct mixer_build state; + int err; + const struct usbmix_ctl_map *map; + void *p; + + memset(&state, 0, sizeof(state)); + state.chip = mixer->chip; + state.mixer = mixer; + state.buffer = mixer->hostif->extra; + state.buflen = mixer->hostif->extralen; + + /* check the mapping table */ + for (map = usbmix_ctl_maps; map->id; map++) { + if (map->id == state.chip->usb_id) { + state.map = map->map; + state.selector_map = map->selector_map; + mixer->connector_map = map->connector_map; + break; + } + } + + p = NULL; + while ((p = snd_usb_find_csint_desc(mixer->hostif->extra, + mixer->hostif->extralen, + p, UAC_OUTPUT_TERMINAL)) != NULL) { + if (!snd_usb_validate_audio_desc(p, mixer->protocol)) + continue; /* skip invalid descriptor */ + + if (mixer->protocol == UAC_VERSION_1) { + struct uac1_output_terminal_descriptor *desc = p; + + /* mark terminal ID as visited */ + set_bit(desc->bTerminalID, state.unitbitmap); + state.oterm.id = desc->bTerminalID; + state.oterm.type = le16_to_cpu(desc->wTerminalType); + state.oterm.name = desc->iTerminal; + err = parse_audio_unit(&state, desc->bSourceID); + if (err < 0 && err != -EINVAL) + return err; + } else if (mixer->protocol == UAC_VERSION_2) { + struct uac2_output_terminal_descriptor *desc = p; + + /* mark terminal ID as visited */ + set_bit(desc->bTerminalID, state.unitbitmap); + state.oterm.id = desc->bTerminalID; + state.oterm.type = le16_to_cpu(desc->wTerminalType); + state.oterm.name = desc->iTerminal; + err = parse_audio_unit(&state, desc->bSourceID); + if (err < 0 && err != -EINVAL) + return err; + + /* + * For UAC2, use the same approach to also add the + * clock selectors + */ + err = parse_audio_unit(&state, desc->bCSourceID); + if (err < 0 && err != -EINVAL) + return err; + + if ((state.oterm.type & 0xff00) != 0x0100 && + uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls), + UAC2_TE_CONNECTOR)) { + build_connector_control(state.mixer, state.map, + &state.oterm, false); + } + } else { /* UAC_VERSION_3 */ + struct uac3_output_terminal_descriptor *desc = p; + + /* mark terminal ID as visited */ + set_bit(desc->bTerminalID, state.unitbitmap); + state.oterm.id = desc->bTerminalID; + state.oterm.type = le16_to_cpu(desc->wTerminalType); + state.oterm.name = le16_to_cpu(desc->wTerminalDescrStr); + err = parse_audio_unit(&state, desc->bSourceID); + if (err < 0 && err != -EINVAL) + return err; + + /* + * For UAC3, use the same approach to also add the + * clock selectors + */ + err = parse_audio_unit(&state, desc->bCSourceID); + if (err < 0 && err != -EINVAL) + return err; + + if ((state.oterm.type & 0xff00) != 0x0100 && + uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls), + UAC3_TE_INSERTION)) { + build_connector_control(state.mixer, state.map, + &state.oterm, false); + } + } + } + + return 0; +} + +static int delegate_notify(struct usb_mixer_interface *mixer, int unitid, + u8 *control, u8 *channel) +{ + const struct usbmix_connector_map *map = mixer->connector_map; + + if (!map) + return unitid; + + for (; map->id; map++) { + if (map->id == unitid) { + if (control && map->control) + *control = map->control; + if (channel && map->channel) + *channel = map->channel; + return map->delegated_id; + } + } + return unitid; +} + +void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid) +{ + struct usb_mixer_elem_list *list; + + unitid = delegate_notify(mixer, unitid, NULL, NULL); + + for_each_mixer_elem(list, mixer, unitid) { + struct usb_mixer_elem_info *info; + + if (!list->is_std_info) + continue; + info = mixer_elem_list_to_info(list); + /* invalidate cache, so the value is read from the device */ + info->cached = 0; + snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &list->kctl->id); + } +} + +static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer, + struct usb_mixer_elem_list *list) +{ + struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); + static const char * const val_types[] = { + [USB_MIXER_BOOLEAN] = "BOOLEAN", + [USB_MIXER_INV_BOOLEAN] = "INV_BOOLEAN", + [USB_MIXER_S8] = "S8", + [USB_MIXER_U8] = "U8", + [USB_MIXER_S16] = "S16", + [USB_MIXER_U16] = "U16", + [USB_MIXER_S32] = "S32", + [USB_MIXER_U32] = "U32", + [USB_MIXER_BESPOKEN] = "BESPOKEN", + }; + snd_iprintf(buffer, " Info: id=%i, control=%i, cmask=0x%x, " + "channels=%i, type=\"%s\"\n", cval->head.id, + cval->control, cval->cmask, cval->channels, + val_types[cval->val_type]); + snd_iprintf(buffer, " Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n", + cval->min, cval->max, cval->dBmin, cval->dBmax); +} + +static void snd_usb_mixer_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_usb_audio *chip = entry->private_data; + struct usb_mixer_interface *mixer; + struct usb_mixer_elem_list *list; + int unitid; + + list_for_each_entry(mixer, &chip->mixer_list, list) { + snd_iprintf(buffer, + "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n", + chip->usb_id, mixer_ctrl_intf(mixer), + mixer->ignore_ctl_error); + snd_iprintf(buffer, "Card: %s\n", chip->card->longname); + for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) { + for_each_mixer_elem(list, mixer, unitid) { + snd_iprintf(buffer, " Unit: %i\n", list->id); + if (list->kctl) + snd_iprintf(buffer, + " Control: name=\"%s\", index=%i\n", + list->kctl->id.name, + list->kctl->id.index); + if (list->dump) + list->dump(buffer, list); + } + } + } +} + +static void snd_usb_mixer_interrupt_v2(struct usb_mixer_interface *mixer, + int attribute, int value, int index) +{ + struct usb_mixer_elem_list *list; + __u8 unitid = (index >> 8) & 0xff; + __u8 control = (value >> 8) & 0xff; + __u8 channel = value & 0xff; + unsigned int count = 0; + + if (channel >= MAX_CHANNELS) { + usb_audio_dbg(mixer->chip, + "%s(): bogus channel number %d\n", + __func__, channel); + return; + } + + unitid = delegate_notify(mixer, unitid, &control, &channel); + + for_each_mixer_elem(list, mixer, unitid) + count++; + + if (count == 0) + return; + + for_each_mixer_elem(list, mixer, unitid) { + struct usb_mixer_elem_info *info; + + if (!list->kctl) + continue; + if (!list->is_std_info) + continue; + + info = mixer_elem_list_to_info(list); + if (count > 1 && info->control != control) + continue; + + switch (attribute) { + case UAC2_CS_CUR: + /* invalidate cache, so the value is read from the device */ + if (channel) + info->cached &= ~(1 << channel); + else /* master channel */ + info->cached = 0; + + snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &info->head.kctl->id); + break; + + case UAC2_CS_RANGE: + /* TODO */ + break; + + case UAC2_CS_MEM: + /* TODO */ + break; + + default: + usb_audio_dbg(mixer->chip, + "unknown attribute %d in interrupt\n", + attribute); + break; + } /* switch */ + } +} + +static void snd_usb_mixer_interrupt(struct urb *urb) +{ + struct usb_mixer_interface *mixer = urb->context; + int len = urb->actual_length; + int ustatus = urb->status; + + if (ustatus != 0) + goto requeue; + + if (mixer->protocol == UAC_VERSION_1) { + struct uac1_status_word *status; + + for (status = urb->transfer_buffer; + len >= sizeof(*status); + len -= sizeof(*status), status++) { + dev_dbg(&urb->dev->dev, "status interrupt: %02x %02x\n", + status->bStatusType, + status->bOriginator); + + /* ignore any notifications not from the control interface */ + if ((status->bStatusType & UAC1_STATUS_TYPE_ORIG_MASK) != + UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF) + continue; + + if (status->bStatusType & UAC1_STATUS_TYPE_MEM_CHANGED) + snd_usb_mixer_rc_memory_change(mixer, status->bOriginator); + else + snd_usb_mixer_notify_id(mixer, status->bOriginator); + } + } else { /* UAC_VERSION_2 */ + struct uac2_interrupt_data_msg *msg; + + for (msg = urb->transfer_buffer; + len >= sizeof(*msg); + len -= sizeof(*msg), msg++) { + /* drop vendor specific and endpoint requests */ + if ((msg->bInfo & UAC2_INTERRUPT_DATA_MSG_VENDOR) || + (msg->bInfo & UAC2_INTERRUPT_DATA_MSG_EP)) + continue; + + snd_usb_mixer_interrupt_v2(mixer, msg->bAttribute, + le16_to_cpu(msg->wValue), + le16_to_cpu(msg->wIndex)); + } + } + +requeue: + if (ustatus != -ENOENT && + ustatus != -ECONNRESET && + ustatus != -ESHUTDOWN) { + urb->dev = mixer->chip->dev; + usb_submit_urb(urb, GFP_ATOMIC); + } +} + +/* create the handler for the optional status interrupt endpoint */ +static int snd_usb_mixer_status_create(struct usb_mixer_interface *mixer) +{ + struct usb_endpoint_descriptor *ep; + void *transfer_buffer; + int buffer_length; + unsigned int epnum; + + /* we need one interrupt input endpoint */ + if (get_iface_desc(mixer->hostif)->bNumEndpoints < 1) + return 0; + ep = get_endpoint(mixer->hostif, 0); + if (!usb_endpoint_dir_in(ep) || !usb_endpoint_xfer_int(ep)) + return 0; + + epnum = usb_endpoint_num(ep); + buffer_length = le16_to_cpu(ep->wMaxPacketSize); + transfer_buffer = kmalloc(buffer_length, GFP_KERNEL); + if (!transfer_buffer) + return -ENOMEM; + mixer->urb = usb_alloc_urb(0, GFP_KERNEL); + if (!mixer->urb) { + kfree(transfer_buffer); + return -ENOMEM; + } + usb_fill_int_urb(mixer->urb, mixer->chip->dev, + usb_rcvintpipe(mixer->chip->dev, epnum), + transfer_buffer, buffer_length, + snd_usb_mixer_interrupt, mixer, ep->bInterval); + usb_submit_urb(mixer->urb, GFP_KERNEL); + return 0; +} + +int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif) +{ + static const struct snd_device_ops dev_ops = { + .dev_free = snd_usb_mixer_dev_free + }; + struct usb_mixer_interface *mixer; + int err; + + strcpy(chip->card->mixername, "USB Mixer"); + + mixer = kzalloc(sizeof(*mixer), GFP_KERNEL); + if (!mixer) + return -ENOMEM; + mixer->chip = chip; + mixer->ignore_ctl_error = !!(chip->quirk_flags & QUIRK_FLAG_IGNORE_CTL_ERROR); + mixer->id_elems = kcalloc(MAX_ID_ELEMS, sizeof(*mixer->id_elems), + GFP_KERNEL); + if (!mixer->id_elems) { + kfree(mixer); + return -ENOMEM; + } + + mixer->hostif = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0]; + switch (get_iface_desc(mixer->hostif)->bInterfaceProtocol) { + case UAC_VERSION_1: + default: + mixer->protocol = UAC_VERSION_1; + break; + case UAC_VERSION_2: + mixer->protocol = UAC_VERSION_2; + break; + case UAC_VERSION_3: + mixer->protocol = UAC_VERSION_3; + break; + } + + if (mixer->protocol == UAC_VERSION_3 && + chip->badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { + err = snd_usb_mixer_controls_badd(mixer, ctrlif); + if (err < 0) + goto _error; + } else { + err = snd_usb_mixer_controls(mixer); + if (err < 0) + goto _error; + } + + err = snd_usb_mixer_status_create(mixer); + if (err < 0) + goto _error; + + err = snd_usb_mixer_apply_create_quirk(mixer); + if (err < 0) + goto _error; + + err = snd_device_new(chip->card, SNDRV_DEV_CODEC, mixer, &dev_ops); + if (err < 0) + goto _error; + + if (list_empty(&chip->mixer_list)) + snd_card_ro_proc_new(chip->card, "usbmixer", chip, + snd_usb_mixer_proc_read); + + list_add(&mixer->list, &chip->mixer_list); + return 0; + +_error: + snd_usb_mixer_free(mixer); + return err; +} + +void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer) +{ + if (mixer->disconnected) + return; + if (mixer->urb) + usb_kill_urb(mixer->urb); + if (mixer->rc_urb) + usb_kill_urb(mixer->rc_urb); + if (mixer->private_free) + mixer->private_free(mixer); + mixer->disconnected = true; +} + +/* stop any bus activity of a mixer */ +static void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer) +{ + usb_kill_urb(mixer->urb); + usb_kill_urb(mixer->rc_urb); +} + +static int snd_usb_mixer_activate(struct usb_mixer_interface *mixer) +{ + int err; + + if (mixer->urb) { + err = usb_submit_urb(mixer->urb, GFP_NOIO); + if (err < 0) + return err; + } + + return 0; +} + +int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer) +{ + snd_usb_mixer_inactivate(mixer); + if (mixer->private_suspend) + mixer->private_suspend(mixer); + return 0; +} + +static int restore_mixer_value(struct usb_mixer_elem_list *list) +{ + struct usb_mixer_elem_info *cval = mixer_elem_list_to_info(list); + int c, err, idx; + + if (cval->val_type == USB_MIXER_BESPOKEN) + return 0; + + if (cval->cmask) { + idx = 0; + for (c = 0; c < MAX_CHANNELS; c++) { + if (!(cval->cmask & (1 << c))) + continue; + if (cval->cached & (1 << (c + 1))) { + err = snd_usb_set_cur_mix_value(cval, c + 1, idx, + cval->cache_val[idx]); + if (err < 0) + break; + } + idx++; + } + } else { + /* master */ + if (cval->cached) + snd_usb_set_cur_mix_value(cval, 0, 0, *cval->cache_val); + } + + return 0; +} + +int snd_usb_mixer_resume(struct usb_mixer_interface *mixer) +{ + struct usb_mixer_elem_list *list; + int id, err; + + /* restore cached mixer values */ + for (id = 0; id < MAX_ID_ELEMS; id++) { + for_each_mixer_elem(list, mixer, id) { + if (list->resume) { + err = list->resume(list); + if (err < 0) + return err; + } + } + } + + snd_usb_mixer_resume_quirk(mixer); + + return snd_usb_mixer_activate(mixer); +} + +void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, + struct usb_mixer_interface *mixer, + int unitid) +{ + list->mixer = mixer; + list->id = unitid; + list->dump = snd_usb_mixer_dump_cval; + list->resume = restore_mixer_value; +} diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h new file mode 100644 index 000000000..d43895c1a --- /dev/null +++ b/sound/usb/mixer.h @@ -0,0 +1,134 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBMIXER_H +#define __USBMIXER_H + +#include <sound/info.h> + +struct media_mixer_ctl; + +struct usbmix_connector_map { + u8 id; + u8 delegated_id; + u8 control; + u8 channel; +}; + +struct usb_mixer_interface { + struct snd_usb_audio *chip; + struct usb_host_interface *hostif; + struct list_head list; + unsigned int ignore_ctl_error; + struct urb *urb; + /* array[MAX_ID_ELEMS], indexed by unit id */ + struct usb_mixer_elem_list **id_elems; + + /* the usb audio specification version this interface complies to */ + int protocol; + + /* optional connector delegation map */ + const struct usbmix_connector_map *connector_map; + + /* Sound Blaster remote control stuff */ + const struct rc_config *rc_cfg; + u32 rc_code; + wait_queue_head_t rc_waitq; + struct urb *rc_urb; + struct usb_ctrlrequest *rc_setup_packet; + u8 rc_buffer[6]; + struct media_mixer_ctl *media_mixer_ctl; + + bool disconnected; + + void *private_data; + void (*private_free)(struct usb_mixer_interface *mixer); + void (*private_suspend)(struct usb_mixer_interface *mixer); +}; + +#define MAX_CHANNELS 16 /* max logical channels */ + +enum { + USB_MIXER_BOOLEAN, + USB_MIXER_INV_BOOLEAN, + USB_MIXER_S8, + USB_MIXER_U8, + USB_MIXER_S16, + USB_MIXER_U16, + USB_MIXER_S32, + USB_MIXER_U32, + USB_MIXER_BESPOKEN, /* non-standard type */ +}; + +typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, + struct usb_mixer_elem_list *list); +typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem); + +struct usb_mixer_elem_list { + struct usb_mixer_interface *mixer; + struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */ + struct snd_kcontrol *kctl; + unsigned int id; + bool is_std_info; + usb_mixer_elem_dump_func_t dump; + usb_mixer_elem_resume_func_t resume; +}; + +/* iterate over mixer element list of the given unit id */ +#define for_each_mixer_elem(list, mixer, id) \ + for ((list) = (mixer)->id_elems[id]; (list); (list) = (list)->next_id_elem) +#define mixer_elem_list_to_info(list) \ + container_of(list, struct usb_mixer_elem_info, head) + +struct usb_mixer_elem_info { + struct usb_mixer_elem_list head; + unsigned int control; /* CS or ICN (high byte) */ + unsigned int cmask; /* channel mask bitmap: 0 = master */ + unsigned int idx_off; /* Control index offset */ + unsigned int ch_readonly; + unsigned int master_readonly; + int channels; + int val_type; + int min, max, res; + int dBmin, dBmax; + int cached; + int cache_val[MAX_CHANNELS]; + u8 initialized; + u8 min_mute; + void *private_data; +}; + +int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif); +void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer); + +void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); + +int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, + int request, int validx, int value_set); + +int snd_usb_mixer_add_list(struct usb_mixer_elem_list *list, + struct snd_kcontrol *kctl, + bool is_std_info); + +#define snd_usb_mixer_add_control(list, kctl) \ + snd_usb_mixer_add_list(list, kctl, true) + +void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, + struct usb_mixer_interface *mixer, + int unitid); + +int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, + unsigned int size, unsigned int __user *_tlv); + +int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer); +int snd_usb_mixer_resume(struct usb_mixer_interface *mixer); + +int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, + int index, int value); + +int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, + int channel, int index, int *value); + +extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl); + +extern const struct snd_kcontrol_new *snd_usb_feature_unit_ctl; + +#endif /* __USBMIXER_H */ diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c new file mode 100644 index 000000000..23260aa19 --- /dev/null +++ b/sound/usb/mixer_maps.c @@ -0,0 +1,752 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Additional mixer mapping + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + */ + +struct usbmix_dB_map { + int min; + int max; + bool min_mute; +}; + +struct usbmix_name_map { + int id; + const char *name; + int control; + const struct usbmix_dB_map *dB; +}; + +struct usbmix_selector_map { + int id; + int count; + const char **names; +}; + +struct usbmix_ctl_map { + u32 id; + const struct usbmix_name_map *map; + const struct usbmix_selector_map *selector_map; + const struct usbmix_connector_map *connector_map; +}; + +/* + * USB control mappers for SB Exitigy + */ + +/* + * Topology of SB Extigy (see on the wide screen :) + +USB_IN[1] --->FU[2]------------------------------+->MU[16]-->PU[17]-+->FU[18]--+->EU[27]--+->EU[21]-->FU[22]--+->FU[23] > Dig_OUT[24] + ^ | | | | +USB_IN[3] -+->SU[5]-->FU[6]--+->MU[14] ->PU[15]->+ | | | +->FU[25] > Dig_OUT[26] + ^ ^ | | | | +Dig_IN[4] -+ | | | | +->FU[28]---------------------> Spk_OUT[19] + | | | | +Lin-IN[7] -+-->FU[8]---------+ | | +----------------------------------------> Hph_OUT[20] + | | | +Mic-IN[9] --+->FU[10]----------------------------+ | + || | + || +----------------------------------------------------+ + VV V + ++--+->SU[11]-->FU[12] --------------------------------------------------------------------------------------> USB_OUT[13] +*/ + +static const struct usbmix_name_map extigy_map[] = { + /* 1: IT pcm */ + { 2, "PCM Playback" }, /* FU */ + /* 3: IT pcm */ + /* 4: IT digital in */ + { 5, NULL }, /* DISABLED: this seems to be bogus on some firmware */ + { 6, "Digital In" }, /* FU */ + /* 7: IT line */ + { 8, "Line Playback" }, /* FU */ + /* 9: IT mic */ + { 10, "Mic Playback" }, /* FU */ + { 11, "Capture Source" }, /* SU */ + { 12, "Capture" }, /* FU */ + /* 13: OT pcm capture */ + /* 14: MU (w/o controls) */ + /* 15: PU (3D enh) */ + /* 16: MU (w/o controls) */ + { 17, NULL, 1 }, /* DISABLED: PU-switch (any effect?) */ + { 17, "Channel Routing", 2 }, /* PU: mode select */ + { 18, "Tone Control - Bass", UAC_FU_BASS }, /* FU */ + { 18, "Tone Control - Treble", UAC_FU_TREBLE }, /* FU */ + { 18, "Master Playback" }, /* FU; others */ + /* 19: OT speaker */ + /* 20: OT headphone */ + { 21, NULL }, /* DISABLED: EU (for what?) */ + { 22, "Digital Out Playback" }, /* FU */ + { 23, "Digital Out1 Playback" }, /* FU */ /* FIXME: corresponds to 24 */ + /* 24: OT digital out */ + { 25, "IEC958 Optical Playback" }, /* FU */ + { 26, "IEC958 Optical Playback" }, /* OT */ + { 27, NULL }, /* DISABLED: EU (for what?) */ + /* 28: FU speaker (mute) */ + { 29, NULL }, /* Digital Input Playback Source? */ + { 0 } /* terminator */ +}; + +/* Sound Blaster MP3+ controls mapping + * The default mixer channels have totally misleading names, + * e.g. no Master and fake PCM volume + * Pavel Mihaylov <bin@bash.info> + */ +static const struct usbmix_dB_map mp3plus_dB_1 = {.min = -4781, .max = 0}; + /* just guess */ +static const struct usbmix_dB_map mp3plus_dB_2 = {.min = -1781, .max = 618}; + /* just guess */ + +static const struct usbmix_name_map mp3plus_map[] = { + /* 1: IT pcm */ + /* 2: IT mic */ + /* 3: IT line */ + /* 4: IT digital in */ + /* 5: OT digital out */ + /* 6: OT speaker */ + /* 7: OT pcm capture */ + { 8, "Capture Source" }, /* FU, default PCM Capture Source */ + /* (Mic, Input 1 = Line input, Input 2 = Optical input) */ + { 9, "Master Playback" }, /* FU, default Speaker 1 */ + /* { 10, "Mic Capture", 1 }, */ /* FU, Mic Capture */ + { 10, /* "Mic Capture", */ NULL, 2, .dB = &mp3plus_dB_2 }, + /* FU, Mic Capture */ + { 10, "Mic Boost", 7 }, /* FU, default Auto Gain Input */ + { 11, "Line Capture", .dB = &mp3plus_dB_2 }, + /* FU, default PCM Capture */ + { 12, "Digital In Playback" }, /* FU, default PCM 1 */ + { 13, /* "Mic Playback", */ .dB = &mp3plus_dB_1 }, + /* FU, default Mic Playback */ + { 14, "Line Playback", .dB = &mp3plus_dB_1 }, /* FU, default Speaker */ + /* 15: MU */ + { 0 } /* terminator */ +}; + +/* Topology of SB Audigy 2 NX + + +----------------------------->EU[27]--+ + | v + | +----------------------------------->SU[29]---->FU[22]-->Dig_OUT[24] + | | ^ +USB_IN[1]-+------------+ +->EU[17]->+->FU[11]-+ + | v | v | +Dig_IN[4]---+->FU[6]-->MU[16]->FU[18]-+->EU[21]->SU[31]----->FU[30]->Hph_OUT[20] + | ^ | | +Lin_IN[7]-+--->FU[8]---+ +->EU[23]->FU[28]------------->Spk_OUT[19] + | | v + +--->FU[12]------------------------------------->SU[14]--->USB_OUT[15] + | ^ + +->FU[13]--------------------------------------+ +*/ +static const struct usbmix_name_map audigy2nx_map[] = { + /* 1: IT pcm playback */ + /* 4: IT digital in */ + { 6, "Digital In Playback" }, /* FU */ + /* 7: IT line in */ + { 8, "Line Playback" }, /* FU */ + { 11, "What-U-Hear Capture" }, /* FU */ + { 12, "Line Capture" }, /* FU */ + { 13, "Digital In Capture" }, /* FU */ + { 14, "Capture Source" }, /* SU */ + /* 15: OT pcm capture */ + /* 16: MU w/o controls */ + { 17, NULL }, /* DISABLED: EU (for what?) */ + { 18, "Master Playback" }, /* FU */ + /* 19: OT speaker */ + /* 20: OT headphone */ + { 21, NULL }, /* DISABLED: EU (for what?) */ + { 22, "Digital Out Playback" }, /* FU */ + { 23, NULL }, /* DISABLED: EU (for what?) */ + /* 24: OT digital out */ + { 27, NULL }, /* DISABLED: EU (for what?) */ + { 28, "Speaker Playback" }, /* FU */ + { 29, "Digital Out Source" }, /* SU */ + { 30, "Headphone Playback" }, /* FU */ + { 31, "Headphone Source" }, /* SU */ + { 0 } /* terminator */ +}; + +static const struct usbmix_name_map mbox1_map[] = { + { 1, "Clock" }, + { 0 } /* terminator */ +}; + +static const struct usbmix_selector_map c400_selectors[] = { + { + .id = 0x80, + .count = 2, + .names = (const char*[]) {"Internal", "SPDIF"} + }, + { 0 } /* terminator */ +}; + +static const struct usbmix_selector_map audigy2nx_selectors[] = { + { + .id = 14, /* Capture Source */ + .count = 3, + .names = (const char*[]) {"Line", "Digital In", "What-U-Hear"} + }, + { + .id = 29, /* Digital Out Source */ + .count = 3, + .names = (const char*[]) {"Front", "PCM", "Digital In"} + }, + { + .id = 31, /* Headphone Source */ + .count = 2, + .names = (const char*[]) {"Front", "Side"} + }, + { 0 } /* terminator */ +}; + +/* Creative SoundBlaster Live! 24-bit External */ +static const struct usbmix_name_map live24ext_map[] = { + /* 2: PCM Playback Volume */ + { 5, "Mic Capture" }, /* FU, default PCM Capture Volume */ + { 0 } /* terminator */ +}; + +/* LineX FM Transmitter entry - needed to bypass controls bug */ +static const struct usbmix_name_map linex_map[] = { + /* 1: IT pcm */ + /* 2: OT Speaker */ + { 3, "Master" }, /* FU: master volume - left / right / mute */ + { 0 } /* terminator */ +}; + +static const struct usbmix_name_map maya44_map[] = { + /* 1: IT line */ + { 2, "Line Playback" }, /* FU */ + /* 3: IT line */ + { 4, "Line Playback" }, /* FU */ + /* 5: IT pcm playback */ + /* 6: MU */ + { 7, "Master Playback" }, /* FU */ + /* 8: OT speaker */ + /* 9: IT line */ + { 10, "Line Capture" }, /* FU */ + /* 11: MU */ + /* 12: OT pcm capture */ + { } +}; + +/* Section "justlink_map" below added by James Courtier-Dutton <James@superbug.demon.co.uk> + * sourced from Maplin Electronics (https://www.maplin.co.uk), part number A56AK + * Part has 2 connectors that act as a single output. (TOSLINK Optical for digital out, and 3.5mm Jack for Analogue out.) + * The USB Mixer publishes a Microphone and extra Volume controls for it, but none exist on the device, + * so this map removes all unwanted sliders from alsamixer + */ + +static const struct usbmix_name_map justlink_map[] = { + /* 1: IT pcm playback */ + /* 2: Not present */ + { 3, NULL}, /* IT mic (No mic input on device) */ + /* 4: Not present */ + /* 5: OT speacker */ + /* 6: OT pcm capture */ + { 7, "Master Playback" }, /* Mute/volume for speaker */ + { 8, NULL }, /* Capture Switch (No capture inputs on device) */ + { 9, NULL }, /* Capture Mute/volume (No capture inputs on device */ + /* 0xa: Not present */ + /* 0xb: MU (w/o controls) */ + { 0xc, NULL }, /* Mic feedback Mute/volume (No capture inputs on device) */ + { 0 } /* terminator */ +}; + +/* TerraTec Aureon 5.1 MkII USB */ +static const struct usbmix_name_map aureon_51_2_map[] = { + /* 1: IT USB */ + /* 2: IT Mic */ + /* 3: IT Line */ + /* 4: IT SPDIF */ + /* 5: OT SPDIF */ + /* 6: OT Speaker */ + /* 7: OT USB */ + { 8, "Capture Source" }, /* SU */ + { 9, "Master Playback" }, /* FU */ + { 10, "Mic Capture" }, /* FU */ + { 11, "Line Capture" }, /* FU */ + { 12, "IEC958 In Capture" }, /* FU */ + { 13, "Mic Playback" }, /* FU */ + { 14, "Line Playback" }, /* FU */ + /* 15: MU */ + {} /* terminator */ +}; + +static const struct usbmix_name_map scratch_live_map[] = { + /* 1: IT Line 1 (USB streaming) */ + /* 2: OT Line 1 (Speaker) */ + /* 3: IT Line 1 (Line connector) */ + { 4, "Line 1 In" }, /* FU */ + /* 5: OT Line 1 (USB streaming) */ + /* 6: IT Line 2 (USB streaming) */ + /* 7: OT Line 2 (Speaker) */ + /* 8: IT Line 2 (Line connector) */ + { 9, "Line 2 In" }, /* FU */ + /* 10: OT Line 2 (USB streaming) */ + /* 11: IT Mic (Line connector) */ + /* 12: OT Mic (USB streaming) */ + { 0 } /* terminator */ +}; + +static const struct usbmix_name_map ebox44_map[] = { + { 4, NULL }, /* FU */ + { 6, NULL }, /* MU */ + { 7, NULL }, /* FU */ + { 10, NULL }, /* FU */ + { 11, NULL }, /* MU */ + { 0 } +}; + +/* "Gamesurround Muse Pocket LT" looks same like "Sound Blaster MP3+" + * most importand difference is SU[8], it should be set to "Capture Source" + * to make alsamixer and PA working properly. + * FIXME: or mp3plus_map should use "Capture Source" too, + * so this maps can be merget + */ +static const struct usbmix_name_map hercules_usb51_map[] = { + { 8, "Capture Source" }, /* SU, default "PCM Capture Source" */ + { 9, "Master Playback" }, /* FU, default "Speaker Playback" */ + { 10, "Mic Boost", 7 }, /* FU, default "Auto Gain Input" */ + { 11, "Line Capture" }, /* FU, default "PCM Capture" */ + { 13, "Mic Bypass Playback" }, /* FU, default "Mic Playback" */ + { 14, "Line Bypass Playback" }, /* FU, default "Line Playback" */ + { 0 } /* terminator */ +}; + +/* Plantronics Gamecom 780 has a broken volume control, better to disable it */ +static const struct usbmix_name_map gamecom780_map[] = { + { 9, NULL }, /* FU, speaker out */ + {} +}; + +/* some (all?) SCMS USB3318 devices are affected by a firmware lock up + * when anything attempts to access FU 10 (control) + */ +static const struct usbmix_name_map scms_usb3318_map[] = { + { 10, NULL }, + { 0 } +}; + +/* Bose companion 5, the dB conversion factor is 16 instead of 256 */ +static const struct usbmix_dB_map bose_companion5_dB = {-5006, -6}; +static const struct usbmix_name_map bose_companion5_map[] = { + { 3, NULL, .dB = &bose_companion5_dB }, + { 0 } /* terminator */ +}; + +/* Bose Revolve+ SoundLink, correction of dB maps */ +static const struct usbmix_dB_map bose_soundlink_dB = {-8283, -0, true}; +static const struct usbmix_name_map bose_soundlink_map[] = { + { 2, NULL, .dB = &bose_soundlink_dB }, + { 0 } /* terminator */ +}; + +/* Sennheiser Communications Headset [PC 8], the dB value is reported as -6 negative maximum */ +static const struct usbmix_dB_map sennheiser_pc8_dB = {-9500, 0}; +static const struct usbmix_name_map sennheiser_pc8_map[] = { + { 9, NULL, .dB = &sennheiser_pc8_dB }, + { 0 } /* terminator */ +}; + +/* + * Dell usb dock with ALC4020 codec had a firmware problem where it got + * screwed up when zero volume is passed; just skip it as a workaround + * + * Also the extension unit gives an access error, so skip it as well. + */ +static const struct usbmix_name_map dell_alc4020_map[] = { + { 4, NULL }, /* extension unit */ + { 16, NULL }, + { 19, NULL }, + { 0 } +}; + +/* + * Corsair Virtuoso calls everything "Headset" without this, leading to + * applications moving the sidetone control instead of the main one. + */ +static const struct usbmix_name_map corsair_virtuoso_map[] = { + { 3, "Mic Capture" }, + { 6, "Sidetone Playback" }, + { 0 } +}; + +/* Microsoft USB Link headset */ +/* a guess work: raw playback volume values are from 2 to 129 */ +static const struct usbmix_dB_map ms_usb_link_dB = { -3225, 0, true }; +static const struct usbmix_name_map ms_usb_link_map[] = { + { 9, NULL, .dB = &ms_usb_link_dB }, + { 10, NULL }, /* Headset Capture volume; seems non-working, disabled */ + { 0 } /* terminator */ +}; + +/* ASUS ROG Zenith II with Realtek ALC1220-VB */ +static const struct usbmix_name_map asus_zenith_ii_map[] = { + { 19, NULL, 12 }, /* FU, Input Gain Pad - broken response, disabled */ + { 16, "Speaker" }, /* OT */ + { 22, "Speaker Playback" }, /* FU */ + { 7, "Line" }, /* IT */ + { 19, "Line Capture" }, /* FU */ + { 8, "Mic" }, /* IT */ + { 20, "Mic Capture" }, /* FU */ + { 9, "Front Mic" }, /* IT */ + { 21, "Front Mic Capture" }, /* FU */ + { 17, "IEC958" }, /* OT */ + { 23, "IEC958 Playback" }, /* FU */ + {} +}; + +static const struct usbmix_connector_map asus_zenith_ii_connector_map[] = { + { 10, 16 }, /* (Back) Speaker */ + { 11, 17 }, /* SPDIF */ + { 13, 7 }, /* Line */ + { 14, 8 }, /* Mic */ + { 15, 9 }, /* Front Mic */ + {} +}; + +static const struct usbmix_name_map lenovo_p620_rear_map[] = { + { 19, NULL, 12 }, /* FU, Input Gain Pad */ + {} +}; + +/* TRX40 mobos with Realtek ALC1220-VB */ +static const struct usbmix_name_map trx40_mobo_map[] = { + { 18, NULL }, /* OT, IEC958 - broken response, disabled */ + { 19, NULL, 12 }, /* FU, Input Gain Pad - broken response, disabled */ + { 16, "Speaker" }, /* OT */ + { 22, "Speaker Playback" }, /* FU */ + { 7, "Line" }, /* IT */ + { 19, "Line Capture" }, /* FU */ + { 17, "Front Headphone" }, /* OT */ + { 23, "Front Headphone Playback" }, /* FU */ + { 8, "Mic" }, /* IT */ + { 20, "Mic Capture" }, /* FU */ + { 9, "Front Mic" }, /* IT */ + { 21, "Front Mic Capture" }, /* FU */ + { 24, "IEC958 Playback" }, /* FU */ + {} +}; + +static const struct usbmix_connector_map trx40_mobo_connector_map[] = { + { 10, 16 }, /* (Back) Speaker */ + { 11, 17 }, /* Front Headphone */ + { 13, 7 }, /* Line */ + { 14, 8 }, /* Mic */ + { 15, 9 }, /* Front Mic */ + {} +}; + +/* Rear panel + front mic on Gigabyte TRX40 Aorus Master with ALC1220-VB */ +static const struct usbmix_name_map aorus_master_alc1220vb_map[] = { + { 17, NULL }, /* OT, IEC958?, disabled */ + { 19, NULL, 12 }, /* FU, Input Gain Pad - broken response, disabled */ + { 16, "Line Out" }, /* OT */ + { 22, "Line Out Playback" }, /* FU */ + { 7, "Line" }, /* IT */ + { 19, "Line Capture" }, /* FU */ + { 8, "Mic" }, /* IT */ + { 20, "Mic Capture" }, /* FU */ + { 9, "Front Mic" }, /* IT */ + { 21, "Front Mic Capture" }, /* FU */ + {} +}; + +/* MSI MPG X570S Carbon Max Wifi with ALC4080 */ +static const struct usbmix_name_map msi_mpg_x570s_carbon_max_wifi_alc4080_map[] = { + { 29, "Speaker Playback" }, + { 30, "Front Headphone Playback" }, + { 32, "IEC958 Playback" }, + {} +}; + +/* Gigabyte B450/550 Mobo */ +static const struct usbmix_name_map gigabyte_b450_map[] = { + { 24, NULL }, /* OT, IEC958?, disabled */ + { 21, "Speaker" }, /* OT */ + { 29, "Speaker Playback" }, /* FU */ + { 22, "Headphone" }, /* OT */ + { 30, "Headphone Playback" }, /* FU */ + { 11, "Line" }, /* IT */ + { 27, "Line Capture" }, /* FU */ + { 12, "Mic" }, /* IT */ + { 28, "Mic Capture" }, /* FU */ + { 9, "Front Mic" }, /* IT */ + { 25, "Front Mic Capture" }, /* FU */ + {} +}; + +static const struct usbmix_connector_map gigabyte_b450_connector_map[] = { + { 13, 21 }, /* Speaker */ + { 14, 22 }, /* Headphone */ + { 19, 11 }, /* Line */ + { 20, 12 }, /* Mic */ + { 17, 9 }, /* Front Mic */ + {} +}; + +/* + * Control map entries + */ + +static const struct usbmix_ctl_map usbmix_ctl_maps[] = { + { + .id = USB_ID(0x041e, 0x3000), + .map = extigy_map, + }, + { + .id = USB_ID(0x041e, 0x3010), + .map = mp3plus_map, + }, + { + .id = USB_ID(0x041e, 0x3020), + .map = audigy2nx_map, + .selector_map = audigy2nx_selectors, + }, + { + .id = USB_ID(0x041e, 0x3040), + .map = live24ext_map, + }, + { + .id = USB_ID(0x041e, 0x3048), + .map = audigy2nx_map, + .selector_map = audigy2nx_selectors, + }, + { /* Plantronics GameCom 780 */ + .id = USB_ID(0x047f, 0xc010), + .map = gamecom780_map, + }, + { + /* Hercules Gamesurround Muse Pocket LT + * (USB 5.1 Channel Audio Adapter) + */ + .id = USB_ID(0x06f8, 0xc000), + .map = hercules_usb51_map, + }, + { + .id = USB_ID(0x0763, 0x2030), + .selector_map = c400_selectors, + }, + { + .id = USB_ID(0x0763, 0x2031), + .selector_map = c400_selectors, + }, + { + .id = USB_ID(0x08bb, 0x2702), + .map = linex_map, + }, + { + .id = USB_ID(0x0a92, 0x0091), + .map = maya44_map, + }, + { + .id = USB_ID(0x0c45, 0x1158), + .map = justlink_map, + }, + { + .id = USB_ID(0x0ccd, 0x0028), + .map = aureon_51_2_map, + }, + { + .id = USB_ID(0x0bda, 0x4014), + .map = dell_alc4020_map, + }, + { + .id = USB_ID(0x0dba, 0x1000), + .map = mbox1_map, + }, + { + .id = USB_ID(0x13e5, 0x0001), + .map = scratch_live_map, + }, + { + .id = USB_ID(0x200c, 0x1018), + .map = ebox44_map, + }, + { + /* MAYA44 USB+ */ + .id = USB_ID(0x2573, 0x0008), + .map = maya44_map, + }, + { + /* KEF X300A */ + .id = USB_ID(0x27ac, 0x1000), + .map = scms_usb3318_map, + }, + { + /* Arcam rPAC */ + .id = USB_ID(0x25c4, 0x0003), + .map = scms_usb3318_map, + }, + { + /* Bose Companion 5 */ + .id = USB_ID(0x05a7, 0x1020), + .map = bose_companion5_map, + }, + { + /* Bose Revolve+ SoundLink */ + .id = USB_ID(0x05a7, 0x40fa), + .map = bose_soundlink_map, + }, + { + /* Corsair Virtuoso SE Latest (wired mode) */ + .id = USB_ID(0x1b1c, 0x0a3f), + .map = corsair_virtuoso_map, + }, + { + /* Corsair Virtuoso SE Latest (wireless mode) */ + .id = USB_ID(0x1b1c, 0x0a40), + .map = corsair_virtuoso_map, + }, + { + /* Corsair Virtuoso SE (wired mode) */ + .id = USB_ID(0x1b1c, 0x0a3d), + .map = corsair_virtuoso_map, + }, + { + /* Corsair Virtuoso SE (wireless mode) */ + .id = USB_ID(0x1b1c, 0x0a3e), + .map = corsair_virtuoso_map, + }, + { + /* Corsair Virtuoso (wired mode) */ + .id = USB_ID(0x1b1c, 0x0a41), + .map = corsair_virtuoso_map, + }, + { + /* Corsair Virtuoso (wireless mode) */ + .id = USB_ID(0x1b1c, 0x0a42), + .map = corsair_virtuoso_map, + }, + { /* Gigabyte TRX40 Aorus Master (rear panel + front mic) */ + .id = USB_ID(0x0414, 0xa001), + .map = aorus_master_alc1220vb_map, + }, + { /* Gigabyte TRX40 Aorus Pro WiFi */ + .id = USB_ID(0x0414, 0xa002), + .map = trx40_mobo_map, + .connector_map = trx40_mobo_connector_map, + }, + { /* Gigabyte B450/550 Mobo */ + .id = USB_ID(0x0414, 0xa00d), + .map = gigabyte_b450_map, + .connector_map = gigabyte_b450_connector_map, + }, + { /* ASUS ROG Zenith II (main audio) */ + .id = USB_ID(0x0b05, 0x1916), + .map = asus_zenith_ii_map, + .connector_map = asus_zenith_ii_connector_map, + }, + { /* ASUS ROG Strix */ + .id = USB_ID(0x0b05, 0x1917), + .map = trx40_mobo_map, + .connector_map = trx40_mobo_connector_map, + }, + { /* MSI TRX40 Creator */ + .id = USB_ID(0x0db0, 0x0d64), + .map = trx40_mobo_map, + .connector_map = trx40_mobo_connector_map, + }, + { /* MSI MPG X570S Carbon Max Wifi */ + .id = USB_ID(0x0db0, 0x419c), + .map = msi_mpg_x570s_carbon_max_wifi_alc4080_map, + }, + { /* MSI MAG X570S Torpedo Max */ + .id = USB_ID(0x0db0, 0xa073), + .map = msi_mpg_x570s_carbon_max_wifi_alc4080_map, + }, + { /* MSI TRX40 */ + .id = USB_ID(0x0db0, 0x543d), + .map = trx40_mobo_map, + .connector_map = trx40_mobo_connector_map, + }, + { /* Asrock TRX40 Creator */ + .id = USB_ID(0x26ce, 0x0a01), + .map = trx40_mobo_map, + .connector_map = trx40_mobo_connector_map, + }, + { /* Lenovo ThinkStation P620 Rear */ + .id = USB_ID(0x17aa, 0x1046), + .map = lenovo_p620_rear_map, + }, + { + /* Sennheiser Communications Headset [PC 8] */ + .id = USB_ID(0x1395, 0x0025), + .map = sennheiser_pc8_map, + }, + { + /* Microsoft USB Link headset */ + .id = USB_ID(0x045e, 0x083c), + .map = ms_usb_link_map, + }, + { 0 } /* terminator */ +}; + +/* + * Control map entries for UAC3 BADD profiles + */ + +static const struct usbmix_name_map uac3_badd_generic_io_map[] = { + { UAC3_BADD_FU_ID2, "Generic Out Playback" }, + { UAC3_BADD_FU_ID5, "Generic In Capture" }, + { 0 } /* terminator */ +}; +static const struct usbmix_name_map uac3_badd_headphone_map[] = { + { UAC3_BADD_FU_ID2, "Headphone Playback" }, + { 0 } /* terminator */ +}; +static const struct usbmix_name_map uac3_badd_speaker_map[] = { + { UAC3_BADD_FU_ID2, "Speaker Playback" }, + { 0 } /* terminator */ +}; +static const struct usbmix_name_map uac3_badd_microphone_map[] = { + { UAC3_BADD_FU_ID5, "Mic Capture" }, + { 0 } /* terminator */ +}; +/* Covers also 'headset adapter' profile */ +static const struct usbmix_name_map uac3_badd_headset_map[] = { + { UAC3_BADD_FU_ID2, "Headset Playback" }, + { UAC3_BADD_FU_ID5, "Headset Capture" }, + { UAC3_BADD_FU_ID7, "Sidetone Mixing" }, + { 0 } /* terminator */ +}; +static const struct usbmix_name_map uac3_badd_speakerphone_map[] = { + { UAC3_BADD_FU_ID2, "Speaker Playback" }, + { UAC3_BADD_FU_ID5, "Mic Capture" }, + { 0 } /* terminator */ +}; + +static const struct usbmix_ctl_map uac3_badd_usbmix_ctl_maps[] = { + { + .id = UAC3_FUNCTION_SUBCLASS_GENERIC_IO, + .map = uac3_badd_generic_io_map, + }, + { + .id = UAC3_FUNCTION_SUBCLASS_HEADPHONE, + .map = uac3_badd_headphone_map, + }, + { + .id = UAC3_FUNCTION_SUBCLASS_SPEAKER, + .map = uac3_badd_speaker_map, + }, + { + .id = UAC3_FUNCTION_SUBCLASS_MICROPHONE, + .map = uac3_badd_microphone_map, + }, + { + .id = UAC3_FUNCTION_SUBCLASS_HEADSET, + .map = uac3_badd_headset_map, + }, + { + .id = UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER, + .map = uac3_badd_headset_map, + }, + { + .id = UAC3_FUNCTION_SUBCLASS_SPEAKERPHONE, + .map = uac3_badd_speakerphone_map, + }, + { 0 } /* terminator */ +}; diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c new file mode 100644 index 000000000..1f32e3ae3 --- /dev/null +++ b/sound/usb/mixer_quirks.c @@ -0,0 +1,3588 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * USB Audio Driver for ALSA + * + * Quirks and vendor-specific extensions for mixer interfaces + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + * + * Many codes borrowed from audio.c by + * Alan Cox (alan@lxorguk.ukuu.org.uk) + * Thomas Sailer (sailer@ife.ee.ethz.ch) + * + * Audio Advantage Micro II support added by: + * Przemek Rudy (prudy1@o2.pl) + */ + +#include <linux/hid.h> +#include <linux/init.h> +#include <linux/math64.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> + +#include <sound/asoundef.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/hda_verbs.h> +#include <sound/hwdep.h> +#include <sound/info.h> +#include <sound/tlv.h> + +#include "usbaudio.h" +#include "mixer.h" +#include "mixer_quirks.h" +#include "mixer_scarlett.h" +#include "mixer_scarlett_gen2.h" +#include "mixer_us16x08.h" +#include "mixer_s1810c.h" +#include "helper.h" + +struct std_mono_table { + unsigned int unitid, control, cmask; + int val_type; + const char *name; + snd_kcontrol_tlv_rw_t *tlv_callback; +}; + +/* This function allows for the creation of standard UAC controls. + * See the quirks for M-Audio FTUs or Ebox-44. + * If you don't want to set a TLV callback pass NULL. + * + * Since there doesn't seem to be a devices that needs a multichannel + * version, we keep it mono for simplicity. + */ +static int snd_create_std_mono_ctl_offset(struct usb_mixer_interface *mixer, + unsigned int unitid, + unsigned int control, + unsigned int cmask, + int val_type, + unsigned int idx_off, + const char *name, + snd_kcontrol_tlv_rw_t *tlv_callback) +{ + struct usb_mixer_elem_info *cval; + struct snd_kcontrol *kctl; + + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return -ENOMEM; + + snd_usb_mixer_elem_init_std(&cval->head, mixer, unitid); + cval->val_type = val_type; + cval->channels = 1; + cval->control = control; + cval->cmask = cmask; + cval->idx_off = idx_off; + + /* get_min_max() is called only for integer volumes later, + * so provide a short-cut for booleans */ + cval->min = 0; + cval->max = 1; + cval->res = 0; + cval->dBmin = 0; + cval->dBmax = 0; + + /* Create control */ + kctl = snd_ctl_new1(snd_usb_feature_unit_ctl, cval); + if (!kctl) { + kfree(cval); + return -ENOMEM; + } + + /* Set name */ + snprintf(kctl->id.name, sizeof(kctl->id.name), name); + kctl->private_free = snd_usb_mixer_elem_free; + + /* set TLV */ + if (tlv_callback) { + kctl->tlv.c = tlv_callback; + kctl->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_TLV_READ | + SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; + } + /* Add control to mixer */ + return snd_usb_mixer_add_control(&cval->head, kctl); +} + +static int snd_create_std_mono_ctl(struct usb_mixer_interface *mixer, + unsigned int unitid, + unsigned int control, + unsigned int cmask, + int val_type, + const char *name, + snd_kcontrol_tlv_rw_t *tlv_callback) +{ + return snd_create_std_mono_ctl_offset(mixer, unitid, control, cmask, + val_type, 0 /* Offset */, name, tlv_callback); +} + +/* + * Create a set of standard UAC controls from a table + */ +static int snd_create_std_mono_table(struct usb_mixer_interface *mixer, + const struct std_mono_table *t) +{ + int err; + + while (t->name != NULL) { + err = snd_create_std_mono_ctl(mixer, t->unitid, t->control, + t->cmask, t->val_type, t->name, t->tlv_callback); + if (err < 0) + return err; + t++; + } + + return 0; +} + +static int add_single_ctl_with_resume(struct usb_mixer_interface *mixer, + int id, + usb_mixer_elem_resume_func_t resume, + const struct snd_kcontrol_new *knew, + struct usb_mixer_elem_list **listp) +{ + struct usb_mixer_elem_list *list; + struct snd_kcontrol *kctl; + + list = kzalloc(sizeof(*list), GFP_KERNEL); + if (!list) + return -ENOMEM; + if (listp) + *listp = list; + list->mixer = mixer; + list->id = id; + list->resume = resume; + kctl = snd_ctl_new1(knew, list); + if (!kctl) { + kfree(list); + return -ENOMEM; + } + kctl->private_free = snd_usb_mixer_elem_free; + /* don't use snd_usb_mixer_add_control() here, this is a special list element */ + return snd_usb_mixer_add_list(list, kctl, false); +} + +/* + * Sound Blaster remote control configuration + * + * format of remote control data: + * Extigy: xx 00 + * Audigy 2 NX: 06 80 xx 00 00 00 + * Live! 24-bit: 06 80 xx yy 22 83 + */ +static const struct rc_config { + u32 usb_id; + u8 offset; + u8 length; + u8 packet_length; + u8 min_packet_length; /* minimum accepted length of the URB result */ + u8 mute_mixer_id; + u32 mute_code; +} rc_configs[] = { + { USB_ID(0x041e, 0x3000), 0, 1, 2, 1, 18, 0x0013 }, /* Extigy */ + { USB_ID(0x041e, 0x3020), 2, 1, 6, 6, 18, 0x0013 }, /* Audigy 2 NX */ + { USB_ID(0x041e, 0x3040), 2, 2, 6, 6, 2, 0x6e91 }, /* Live! 24-bit */ + { USB_ID(0x041e, 0x3042), 0, 1, 1, 1, 1, 0x000d }, /* Usb X-Fi S51 */ + { USB_ID(0x041e, 0x30df), 0, 1, 1, 1, 1, 0x000d }, /* Usb X-Fi S51 Pro */ + { USB_ID(0x041e, 0x3237), 0, 1, 1, 1, 1, 0x000d }, /* Usb X-Fi S51 Pro */ + { USB_ID(0x041e, 0x3263), 0, 1, 1, 1, 1, 0x000d }, /* Usb X-Fi S51 Pro */ + { USB_ID(0x041e, 0x3048), 2, 2, 6, 6, 2, 0x6e91 }, /* Toshiba SB0500 */ +}; + +static void snd_usb_soundblaster_remote_complete(struct urb *urb) +{ + struct usb_mixer_interface *mixer = urb->context; + const struct rc_config *rc = mixer->rc_cfg; + u32 code; + + if (urb->status < 0 || urb->actual_length < rc->min_packet_length) + return; + + code = mixer->rc_buffer[rc->offset]; + if (rc->length == 2) + code |= mixer->rc_buffer[rc->offset + 1] << 8; + + /* the Mute button actually changes the mixer control */ + if (code == rc->mute_code) + snd_usb_mixer_notify_id(mixer, rc->mute_mixer_id); + mixer->rc_code = code; + wmb(); + wake_up(&mixer->rc_waitq); +} + +static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf, + long count, loff_t *offset) +{ + struct usb_mixer_interface *mixer = hw->private_data; + int err; + u32 rc_code; + + if (count != 1 && count != 4) + return -EINVAL; + err = wait_event_interruptible(mixer->rc_waitq, + (rc_code = xchg(&mixer->rc_code, 0)) != 0); + if (err == 0) { + if (count == 1) + err = put_user(rc_code, buf); + else + err = put_user(rc_code, (u32 __user *)buf); + } + return err < 0 ? err : count; +} + +static __poll_t snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file, + poll_table *wait) +{ + struct usb_mixer_interface *mixer = hw->private_data; + + poll_wait(file, &mixer->rc_waitq, wait); + return mixer->rc_code ? EPOLLIN | EPOLLRDNORM : 0; +} + +static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer) +{ + struct snd_hwdep *hwdep; + int err, len, i; + + for (i = 0; i < ARRAY_SIZE(rc_configs); ++i) + if (rc_configs[i].usb_id == mixer->chip->usb_id) + break; + if (i >= ARRAY_SIZE(rc_configs)) + return 0; + mixer->rc_cfg = &rc_configs[i]; + + len = mixer->rc_cfg->packet_length; + + init_waitqueue_head(&mixer->rc_waitq); + err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep); + if (err < 0) + return err; + snprintf(hwdep->name, sizeof(hwdep->name), + "%s remote control", mixer->chip->card->shortname); + hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC; + hwdep->private_data = mixer; + hwdep->ops.read = snd_usb_sbrc_hwdep_read; + hwdep->ops.poll = snd_usb_sbrc_hwdep_poll; + hwdep->exclusive = 1; + + mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!mixer->rc_urb) + return -ENOMEM; + mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL); + if (!mixer->rc_setup_packet) { + usb_free_urb(mixer->rc_urb); + mixer->rc_urb = NULL; + return -ENOMEM; + } + mixer->rc_setup_packet->bRequestType = + USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE; + mixer->rc_setup_packet->bRequest = UAC_GET_MEM; + mixer->rc_setup_packet->wValue = cpu_to_le16(0); + mixer->rc_setup_packet->wIndex = cpu_to_le16(0); + mixer->rc_setup_packet->wLength = cpu_to_le16(len); + usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev, + usb_rcvctrlpipe(mixer->chip->dev, 0), + (u8*)mixer->rc_setup_packet, mixer->rc_buffer, len, + snd_usb_soundblaster_remote_complete, mixer); + return 0; +} + +#define snd_audigy2nx_led_info snd_ctl_boolean_mono_info + +static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = kcontrol->private_value >> 8; + return 0; +} + +static int snd_audigy2nx_led_update(struct usb_mixer_interface *mixer, + int value, int index) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + if (chip->usb_id == USB_ID(0x041e, 0x3042)) + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), 0x24, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + !value, 0, NULL, 0); + /* USB X-Fi S51 Pro */ + if (chip->usb_id == USB_ID(0x041e, 0x30df)) + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), 0x24, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + !value, 0, NULL, 0); + else + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), 0x24, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + value, index + 2, NULL, 0); + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + struct usb_mixer_interface *mixer = list->mixer; + int index = kcontrol->private_value & 0xff; + unsigned int value = ucontrol->value.integer.value[0]; + int old_value = kcontrol->private_value >> 8; + int err; + + if (value > 1) + return -EINVAL; + if (value == old_value) + return 0; + kcontrol->private_value = (value << 8) | index; + err = snd_audigy2nx_led_update(mixer, value, index); + return err < 0 ? err : 1; +} + +static int snd_audigy2nx_led_resume(struct usb_mixer_elem_list *list) +{ + int priv_value = list->kctl->private_value; + + return snd_audigy2nx_led_update(list->mixer, priv_value >> 8, + priv_value & 0xff); +} + +/* name and private_value are set dynamically */ +static const struct snd_kcontrol_new snd_audigy2nx_control = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .info = snd_audigy2nx_led_info, + .get = snd_audigy2nx_led_get, + .put = snd_audigy2nx_led_put, +}; + +static const char * const snd_audigy2nx_led_names[] = { + "CMSS LED Switch", + "Power LED Switch", + "Dolby Digital LED Switch", +}; + +static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer) +{ + int i, err; + + for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_led_names); ++i) { + struct snd_kcontrol_new knew; + + /* USB X-Fi S51 doesn't have a CMSS LED */ + if ((mixer->chip->usb_id == USB_ID(0x041e, 0x3042)) && i == 0) + continue; + /* USB X-Fi S51 Pro doesn't have one either */ + if ((mixer->chip->usb_id == USB_ID(0x041e, 0x30df)) && i == 0) + continue; + if (i > 1 && /* Live24ext has 2 LEDs only */ + (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) || + mixer->chip->usb_id == USB_ID(0x041e, 0x3042) || + mixer->chip->usb_id == USB_ID(0x041e, 0x30df) || + mixer->chip->usb_id == USB_ID(0x041e, 0x3048))) + break; + + knew = snd_audigy2nx_control; + knew.name = snd_audigy2nx_led_names[i]; + knew.private_value = (1 << 8) | i; /* LED on as default */ + err = add_single_ctl_with_resume(mixer, 0, + snd_audigy2nx_led_resume, + &knew, NULL); + if (err < 0) + return err; + } + return 0; +} + +static void snd_audigy2nx_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + static const struct sb_jack { + int unitid; + const char *name; + } jacks_audigy2nx[] = { + {4, "dig in "}, + {7, "line in"}, + {19, "spk out"}, + {20, "hph out"}, + {-1, NULL} + }, jacks_live24ext[] = { + {4, "line in"}, /* &1=Line, &2=Mic*/ + {3, "hph out"}, /* headphones */ + {0, "RC "}, /* last command, 6 bytes see rc_config above */ + {-1, NULL} + }; + const struct sb_jack *jacks; + struct usb_mixer_interface *mixer = entry->private_data; + int i, err; + u8 buf[3]; + + snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname); + if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020)) + jacks = jacks_audigy2nx; + else if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) || + mixer->chip->usb_id == USB_ID(0x041e, 0x3048)) + jacks = jacks_live24ext; + else + return; + + for (i = 0; jacks[i].name; ++i) { + snd_iprintf(buffer, "%s: ", jacks[i].name); + err = snd_usb_lock_shutdown(mixer->chip); + if (err < 0) + return; + err = snd_usb_ctl_msg(mixer->chip->dev, + usb_rcvctrlpipe(mixer->chip->dev, 0), + UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS | + USB_RECIP_INTERFACE, 0, + jacks[i].unitid << 8, buf, 3); + snd_usb_unlock_shutdown(mixer->chip); + if (err == 3 && (buf[0] == 3 || buf[0] == 6)) + snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]); + else + snd_iprintf(buffer, "?\n"); + } +} + +/* EMU0204 */ +static int snd_emu0204_ch_switch_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char * const texts[2] = {"1/2", "3/4"}; + + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); +} + +static int snd_emu0204_ch_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.enumerated.item[0] = kcontrol->private_value; + return 0; +} + +static int snd_emu0204_ch_switch_update(struct usb_mixer_interface *mixer, + int value) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + unsigned char buf[2]; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + buf[0] = 0x01; + buf[1] = value ? 0x02 : 0x01; + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + 0x0400, 0x0e00, buf, 2); + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_emu0204_ch_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + struct usb_mixer_interface *mixer = list->mixer; + unsigned int value = ucontrol->value.enumerated.item[0]; + int err; + + if (value > 1) + return -EINVAL; + + if (value == kcontrol->private_value) + return 0; + + kcontrol->private_value = value; + err = snd_emu0204_ch_switch_update(mixer, value); + return err < 0 ? err : 1; +} + +static int snd_emu0204_ch_switch_resume(struct usb_mixer_elem_list *list) +{ + return snd_emu0204_ch_switch_update(list->mixer, + list->kctl->private_value); +} + +static const struct snd_kcontrol_new snd_emu0204_control = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Front Jack Channels", + .info = snd_emu0204_ch_switch_info, + .get = snd_emu0204_ch_switch_get, + .put = snd_emu0204_ch_switch_put, + .private_value = 0, +}; + +static int snd_emu0204_controls_create(struct usb_mixer_interface *mixer) +{ + return add_single_ctl_with_resume(mixer, 0, + snd_emu0204_ch_switch_resume, + &snd_emu0204_control, NULL); +} + +/* ASUS Xonar U1 / U3 controls */ + +static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = !!(kcontrol->private_value & 0x02); + return 0; +} + +static int snd_xonar_u1_switch_update(struct usb_mixer_interface *mixer, + unsigned char status) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), 0x08, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + 50, 0, &status, 1); + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + u8 old_status, new_status; + int err; + + old_status = kcontrol->private_value; + if (ucontrol->value.integer.value[0]) + new_status = old_status | 0x02; + else + new_status = old_status & ~0x02; + if (new_status == old_status) + return 0; + + kcontrol->private_value = new_status; + err = snd_xonar_u1_switch_update(list->mixer, new_status); + return err < 0 ? err : 1; +} + +static int snd_xonar_u1_switch_resume(struct usb_mixer_elem_list *list) +{ + return snd_xonar_u1_switch_update(list->mixer, + list->kctl->private_value); +} + +static const struct snd_kcontrol_new snd_xonar_u1_output_switch = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Digital Playback Switch", + .info = snd_ctl_boolean_mono_info, + .get = snd_xonar_u1_switch_get, + .put = snd_xonar_u1_switch_put, + .private_value = 0x05, +}; + +static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer) +{ + return add_single_ctl_with_resume(mixer, 0, + snd_xonar_u1_switch_resume, + &snd_xonar_u1_output_switch, NULL); +} + +/* Digidesign Mbox 1 helper functions */ + +static int snd_mbox1_is_spdif_synced(struct snd_usb_audio *chip) +{ + unsigned char buff[3]; + int err; + int is_spdif_synced; + + /* Read clock source */ + err = snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), 0x81, + USB_DIR_IN | + USB_TYPE_CLASS | + USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3); + if (err < 0) + return err; + + /* spdif sync: buff is all zeroes */ + is_spdif_synced = !(buff[0] | buff[1] | buff[2]); + return is_spdif_synced; +} + +static int snd_mbox1_set_clk_source(struct snd_usb_audio *chip, int rate_or_zero) +{ + /* 2 possibilities: Internal -> expects sample rate + * S/PDIF sync -> expects rate = 0 + */ + unsigned char buff[3]; + + buff[0] = (rate_or_zero >> 0) & 0xff; + buff[1] = (rate_or_zero >> 8) & 0xff; + buff[2] = (rate_or_zero >> 16) & 0xff; + + /* Set clock source */ + return snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), 0x1, + USB_TYPE_CLASS | + USB_RECIP_ENDPOINT, 0x100, 0x81, buff, 3); +} + +static int snd_mbox1_is_spdif_input(struct snd_usb_audio *chip) +{ + /* Hardware gives 2 possibilities: ANALOG Source -> 0x01 + * S/PDIF Source -> 0x02 + */ + int err; + unsigned char source[1]; + + /* Read input source */ + err = snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), 0x81, + USB_DIR_IN | + USB_TYPE_CLASS | + USB_RECIP_INTERFACE, 0x00, 0x500, source, 1); + if (err < 0) + return err; + + return (source[0] == 2); +} + +static int snd_mbox1_set_input_source(struct snd_usb_audio *chip, int is_spdif) +{ + /* NB: Setting the input source to S/PDIF resets the clock source to S/PDIF + * Hardware expects 2 possibilities: ANALOG Source -> 0x01 + * S/PDIF Source -> 0x02 + */ + unsigned char buff[1]; + + buff[0] = (is_spdif & 1) + 1; + + /* Set input source */ + return snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), 0x1, + USB_TYPE_CLASS | + USB_RECIP_INTERFACE, 0x00, 0x500, buff, 1); +} + +/* Digidesign Mbox 1 clock source switch (internal/spdif) */ + +static int snd_mbox1_clk_switch_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + struct snd_usb_audio *chip = list->mixer->chip; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + goto err; + + err = snd_mbox1_is_spdif_synced(chip); + if (err < 0) + goto err; + + kctl->private_value = err; + err = 0; + ucontrol->value.enumerated.item[0] = kctl->private_value; +err: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_mbox1_clk_switch_update(struct usb_mixer_interface *mixer, int is_spdif_sync) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + err = snd_mbox1_is_spdif_input(chip); + if (err < 0) + goto err; + + err = snd_mbox1_is_spdif_synced(chip); + if (err < 0) + goto err; + + /* FIXME: hardcoded sample rate */ + err = snd_mbox1_set_clk_source(chip, is_spdif_sync ? 0 : 48000); + if (err < 0) + goto err; + + err = snd_mbox1_is_spdif_synced(chip); +err: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_mbox1_clk_switch_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + struct usb_mixer_interface *mixer = list->mixer; + int err; + bool cur_val, new_val; + + cur_val = kctl->private_value; + new_val = ucontrol->value.enumerated.item[0]; + if (cur_val == new_val) + return 0; + + kctl->private_value = new_val; + err = snd_mbox1_clk_switch_update(mixer, new_val); + return err < 0 ? err : 1; +} + +static int snd_mbox1_clk_switch_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const texts[2] = { + "Internal", + "S/PDIF" + }; + + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); +} + +static int snd_mbox1_clk_switch_resume(struct usb_mixer_elem_list *list) +{ + return snd_mbox1_clk_switch_update(list->mixer, list->kctl->private_value); +} + +/* Digidesign Mbox 1 input source switch (analog/spdif) */ + +static int snd_mbox1_src_switch_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.enumerated.item[0] = kctl->private_value; + return 0; +} + +static int snd_mbox1_src_switch_update(struct usb_mixer_interface *mixer, int is_spdif_input) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + err = snd_mbox1_is_spdif_input(chip); + if (err < 0) + goto err; + + err = snd_mbox1_set_input_source(chip, is_spdif_input); + if (err < 0) + goto err; + + err = snd_mbox1_is_spdif_input(chip); + if (err < 0) + goto err; + + err = snd_mbox1_is_spdif_synced(chip); +err: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_mbox1_src_switch_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + struct usb_mixer_interface *mixer = list->mixer; + int err; + bool cur_val, new_val; + + cur_val = kctl->private_value; + new_val = ucontrol->value.enumerated.item[0]; + if (cur_val == new_val) + return 0; + + kctl->private_value = new_val; + err = snd_mbox1_src_switch_update(mixer, new_val); + return err < 0 ? err : 1; +} + +static int snd_mbox1_src_switch_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const texts[2] = { + "Analog", + "S/PDIF" + }; + + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); +} + +static int snd_mbox1_src_switch_resume(struct usb_mixer_elem_list *list) +{ + return snd_mbox1_src_switch_update(list->mixer, list->kctl->private_value); +} + +static const struct snd_kcontrol_new snd_mbox1_clk_switch = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Clock Source", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_mbox1_clk_switch_info, + .get = snd_mbox1_clk_switch_get, + .put = snd_mbox1_clk_switch_put, + .private_value = 0 +}; + +static const struct snd_kcontrol_new snd_mbox1_src_switch = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Input Source", + .index = 1, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_mbox1_src_switch_info, + .get = snd_mbox1_src_switch_get, + .put = snd_mbox1_src_switch_put, + .private_value = 0 +}; + +static int snd_mbox1_controls_create(struct usb_mixer_interface *mixer) +{ + int err; + err = add_single_ctl_with_resume(mixer, 0, + snd_mbox1_clk_switch_resume, + &snd_mbox1_clk_switch, NULL); + if (err < 0) + return err; + + return add_single_ctl_with_resume(mixer, 1, + snd_mbox1_src_switch_resume, + &snd_mbox1_src_switch, NULL); +} + +/* Native Instruments device quirks */ + +#define _MAKE_NI_CONTROL(bRequest,wIndex) ((bRequest) << 16 | (wIndex)) + +static int snd_ni_control_init_val(struct usb_mixer_interface *mixer, + struct snd_kcontrol *kctl) +{ + struct usb_device *dev = mixer->chip->dev; + unsigned int pval = kctl->private_value; + u8 value; + int err; + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + (pval >> 16) & 0xff, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, + 0, pval & 0xffff, &value, 1); + if (err < 0) { + dev_err(&dev->dev, + "unable to issue vendor read request (ret = %d)", err); + return err; + } + + kctl->private_value |= ((unsigned int)value << 24); + return 0; +} + +static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = kcontrol->private_value >> 24; + return 0; +} + +static int snd_ni_update_cur_val(struct usb_mixer_elem_list *list) +{ + struct snd_usb_audio *chip = list->mixer->chip; + unsigned int pval = list->kctl->private_value; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + err = usb_control_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), + (pval >> 16) & 0xff, + USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, + pval >> 24, pval & 0xffff, NULL, 0, 1000); + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + u8 oldval = (kcontrol->private_value >> 24) & 0xff; + u8 newval = ucontrol->value.integer.value[0]; + int err; + + if (oldval == newval) + return 0; + + kcontrol->private_value &= ~(0xff << 24); + kcontrol->private_value |= (unsigned int)newval << 24; + err = snd_ni_update_cur_val(list); + return err < 0 ? err : 1; +} + +static const struct snd_kcontrol_new snd_nativeinstruments_ta6_mixers[] = { + { + .name = "Direct Thru Channel A", + .private_value = _MAKE_NI_CONTROL(0x01, 0x03), + }, + { + .name = "Direct Thru Channel B", + .private_value = _MAKE_NI_CONTROL(0x01, 0x05), + }, + { + .name = "Phono Input Channel A", + .private_value = _MAKE_NI_CONTROL(0x02, 0x03), + }, + { + .name = "Phono Input Channel B", + .private_value = _MAKE_NI_CONTROL(0x02, 0x05), + }, +}; + +static const struct snd_kcontrol_new snd_nativeinstruments_ta10_mixers[] = { + { + .name = "Direct Thru Channel A", + .private_value = _MAKE_NI_CONTROL(0x01, 0x03), + }, + { + .name = "Direct Thru Channel B", + .private_value = _MAKE_NI_CONTROL(0x01, 0x05), + }, + { + .name = "Direct Thru Channel C", + .private_value = _MAKE_NI_CONTROL(0x01, 0x07), + }, + { + .name = "Direct Thru Channel D", + .private_value = _MAKE_NI_CONTROL(0x01, 0x09), + }, + { + .name = "Phono Input Channel A", + .private_value = _MAKE_NI_CONTROL(0x02, 0x03), + }, + { + .name = "Phono Input Channel B", + .private_value = _MAKE_NI_CONTROL(0x02, 0x05), + }, + { + .name = "Phono Input Channel C", + .private_value = _MAKE_NI_CONTROL(0x02, 0x07), + }, + { + .name = "Phono Input Channel D", + .private_value = _MAKE_NI_CONTROL(0x02, 0x09), + }, +}; + +static int snd_nativeinstruments_create_mixer(struct usb_mixer_interface *mixer, + const struct snd_kcontrol_new *kc, + unsigned int count) +{ + int i, err = 0; + struct snd_kcontrol_new template = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .get = snd_nativeinstruments_control_get, + .put = snd_nativeinstruments_control_put, + .info = snd_ctl_boolean_mono_info, + }; + + for (i = 0; i < count; i++) { + struct usb_mixer_elem_list *list; + + template.name = kc[i].name; + template.private_value = kc[i].private_value; + + err = add_single_ctl_with_resume(mixer, 0, + snd_ni_update_cur_val, + &template, &list); + if (err < 0) + break; + snd_ni_control_init_val(mixer, list->kctl); + } + + return err; +} + +/* M-Audio FastTrack Ultra quirks */ +/* FTU Effect switch (also used by C400/C600) */ +static int snd_ftu_eff_switch_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const texts[8] = { + "Room 1", "Room 2", "Room 3", "Hall 1", + "Hall 2", "Plate", "Delay", "Echo" + }; + + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); +} + +static int snd_ftu_eff_switch_init(struct usb_mixer_interface *mixer, + struct snd_kcontrol *kctl) +{ + struct usb_device *dev = mixer->chip->dev; + unsigned int pval = kctl->private_value; + int err; + unsigned char value[2]; + + value[0] = 0x00; + value[1] = 0x00; + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC_GET_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + pval & 0xff00, + snd_usb_ctrl_intf(mixer->chip) | ((pval & 0xff) << 8), + value, 2); + if (err < 0) + return err; + + kctl->private_value |= (unsigned int)value[0] << 24; + return 0; +} + +static int snd_ftu_eff_switch_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.enumerated.item[0] = kctl->private_value >> 24; + return 0; +} + +static int snd_ftu_eff_switch_update(struct usb_mixer_elem_list *list) +{ + struct snd_usb_audio *chip = list->mixer->chip; + unsigned int pval = list->kctl->private_value; + unsigned char value[2]; + int err; + + value[0] = pval >> 24; + value[1] = 0; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), + UAC_SET_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + pval & 0xff00, + snd_usb_ctrl_intf(chip) | ((pval & 0xff) << 8), + value, 2); + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_ftu_eff_switch_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + unsigned int pval = list->kctl->private_value; + int cur_val, err, new_val; + + cur_val = pval >> 24; + new_val = ucontrol->value.enumerated.item[0]; + if (cur_val == new_val) + return 0; + + kctl->private_value &= ~(0xff << 24); + kctl->private_value |= new_val << 24; + err = snd_ftu_eff_switch_update(list); + return err < 0 ? err : 1; +} + +static int snd_ftu_create_effect_switch(struct usb_mixer_interface *mixer, + int validx, int bUnitID) +{ + static struct snd_kcontrol_new template = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Effect Program Switch", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = snd_ftu_eff_switch_info, + .get = snd_ftu_eff_switch_get, + .put = snd_ftu_eff_switch_put + }; + struct usb_mixer_elem_list *list; + int err; + + err = add_single_ctl_with_resume(mixer, bUnitID, + snd_ftu_eff_switch_update, + &template, &list); + if (err < 0) + return err; + list->kctl->private_value = (validx << 8) | bUnitID; + snd_ftu_eff_switch_init(mixer, list->kctl); + return 0; +} + +/* Create volume controls for FTU devices*/ +static int snd_ftu_create_volume_ctls(struct usb_mixer_interface *mixer) +{ + char name[64]; + unsigned int control, cmask; + int in, out, err; + + const unsigned int id = 5; + const int val_type = USB_MIXER_S16; + + for (out = 0; out < 8; out++) { + control = out + 1; + for (in = 0; in < 8; in++) { + cmask = 1 << in; + snprintf(name, sizeof(name), + "AIn%d - Out%d Capture Volume", + in + 1, out + 1); + err = snd_create_std_mono_ctl(mixer, id, control, + cmask, val_type, name, + &snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + for (in = 8; in < 16; in++) { + cmask = 1 << in; + snprintf(name, sizeof(name), + "DIn%d - Out%d Playback Volume", + in - 7, out + 1); + err = snd_create_std_mono_ctl(mixer, id, control, + cmask, val_type, name, + &snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + } + + return 0; +} + +/* This control needs a volume quirk, see mixer.c */ +static int snd_ftu_create_effect_volume_ctl(struct usb_mixer_interface *mixer) +{ + static const char name[] = "Effect Volume"; + const unsigned int id = 6; + const int val_type = USB_MIXER_U8; + const unsigned int control = 2; + const unsigned int cmask = 0; + + return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, + name, snd_usb_mixer_vol_tlv); +} + +/* This control needs a volume quirk, see mixer.c */ +static int snd_ftu_create_effect_duration_ctl(struct usb_mixer_interface *mixer) +{ + static const char name[] = "Effect Duration"; + const unsigned int id = 6; + const int val_type = USB_MIXER_S16; + const unsigned int control = 3; + const unsigned int cmask = 0; + + return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, + name, snd_usb_mixer_vol_tlv); +} + +/* This control needs a volume quirk, see mixer.c */ +static int snd_ftu_create_effect_feedback_ctl(struct usb_mixer_interface *mixer) +{ + static const char name[] = "Effect Feedback Volume"; + const unsigned int id = 6; + const int val_type = USB_MIXER_U8; + const unsigned int control = 4; + const unsigned int cmask = 0; + + return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, + name, NULL); +} + +static int snd_ftu_create_effect_return_ctls(struct usb_mixer_interface *mixer) +{ + unsigned int cmask; + int err, ch; + char name[48]; + + const unsigned int id = 7; + const int val_type = USB_MIXER_S16; + const unsigned int control = 7; + + for (ch = 0; ch < 4; ++ch) { + cmask = 1 << ch; + snprintf(name, sizeof(name), + "Effect Return %d Volume", ch + 1); + err = snd_create_std_mono_ctl(mixer, id, control, + cmask, val_type, name, + snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + + return 0; +} + +static int snd_ftu_create_effect_send_ctls(struct usb_mixer_interface *mixer) +{ + unsigned int cmask; + int err, ch; + char name[48]; + + const unsigned int id = 5; + const int val_type = USB_MIXER_S16; + const unsigned int control = 9; + + for (ch = 0; ch < 8; ++ch) { + cmask = 1 << ch; + snprintf(name, sizeof(name), + "Effect Send AIn%d Volume", ch + 1); + err = snd_create_std_mono_ctl(mixer, id, control, cmask, + val_type, name, + snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + for (ch = 8; ch < 16; ++ch) { + cmask = 1 << ch; + snprintf(name, sizeof(name), + "Effect Send DIn%d Volume", ch - 7); + err = snd_create_std_mono_ctl(mixer, id, control, cmask, + val_type, name, + snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + return 0; +} + +static int snd_ftu_create_mixer(struct usb_mixer_interface *mixer) +{ + int err; + + err = snd_ftu_create_volume_ctls(mixer); + if (err < 0) + return err; + + err = snd_ftu_create_effect_switch(mixer, 1, 6); + if (err < 0) + return err; + + err = snd_ftu_create_effect_volume_ctl(mixer); + if (err < 0) + return err; + + err = snd_ftu_create_effect_duration_ctl(mixer); + if (err < 0) + return err; + + err = snd_ftu_create_effect_feedback_ctl(mixer); + if (err < 0) + return err; + + err = snd_ftu_create_effect_return_ctls(mixer); + if (err < 0) + return err; + + err = snd_ftu_create_effect_send_ctls(mixer); + if (err < 0) + return err; + + return 0; +} + +void snd_emuusb_set_samplerate(struct snd_usb_audio *chip, + unsigned char samplerate_id) +{ + struct usb_mixer_interface *mixer; + struct usb_mixer_elem_info *cval; + int unitid = 12; /* SampleRate ExtensionUnit ID */ + + list_for_each_entry(mixer, &chip->mixer_list, list) { + if (mixer->id_elems[unitid]) { + cval = mixer_elem_list_to_info(mixer->id_elems[unitid]); + snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, + cval->control << 8, + samplerate_id); + snd_usb_mixer_notify_id(mixer, unitid); + break; + } + } +} + +/* M-Audio Fast Track C400/C600 */ +/* C400/C600 volume controls, this control needs a volume quirk, see mixer.c */ +static int snd_c400_create_vol_ctls(struct usb_mixer_interface *mixer) +{ + char name[64]; + unsigned int cmask, offset; + int out, chan, err; + int num_outs = 0; + int num_ins = 0; + + const unsigned int id = 0x40; + const int val_type = USB_MIXER_S16; + const int control = 1; + + switch (mixer->chip->usb_id) { + case USB_ID(0x0763, 0x2030): + num_outs = 6; + num_ins = 4; + break; + case USB_ID(0x0763, 0x2031): + num_outs = 8; + num_ins = 6; + break; + } + + for (chan = 0; chan < num_outs + num_ins; chan++) { + for (out = 0; out < num_outs; out++) { + if (chan < num_outs) { + snprintf(name, sizeof(name), + "PCM%d-Out%d Playback Volume", + chan + 1, out + 1); + } else { + snprintf(name, sizeof(name), + "In%d-Out%d Playback Volume", + chan - num_outs + 1, out + 1); + } + + cmask = (out == 0) ? 0 : 1 << (out - 1); + offset = chan * num_outs; + err = snd_create_std_mono_ctl_offset(mixer, id, control, + cmask, val_type, offset, name, + &snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + } + + return 0; +} + +/* This control needs a volume quirk, see mixer.c */ +static int snd_c400_create_effect_volume_ctl(struct usb_mixer_interface *mixer) +{ + static const char name[] = "Effect Volume"; + const unsigned int id = 0x43; + const int val_type = USB_MIXER_U8; + const unsigned int control = 3; + const unsigned int cmask = 0; + + return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, + name, snd_usb_mixer_vol_tlv); +} + +/* This control needs a volume quirk, see mixer.c */ +static int snd_c400_create_effect_duration_ctl(struct usb_mixer_interface *mixer) +{ + static const char name[] = "Effect Duration"; + const unsigned int id = 0x43; + const int val_type = USB_MIXER_S16; + const unsigned int control = 4; + const unsigned int cmask = 0; + + return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, + name, snd_usb_mixer_vol_tlv); +} + +/* This control needs a volume quirk, see mixer.c */ +static int snd_c400_create_effect_feedback_ctl(struct usb_mixer_interface *mixer) +{ + static const char name[] = "Effect Feedback Volume"; + const unsigned int id = 0x43; + const int val_type = USB_MIXER_U8; + const unsigned int control = 5; + const unsigned int cmask = 0; + + return snd_create_std_mono_ctl(mixer, id, control, cmask, val_type, + name, NULL); +} + +static int snd_c400_create_effect_vol_ctls(struct usb_mixer_interface *mixer) +{ + char name[64]; + unsigned int cmask; + int chan, err; + int num_outs = 0; + int num_ins = 0; + + const unsigned int id = 0x42; + const int val_type = USB_MIXER_S16; + const int control = 1; + + switch (mixer->chip->usb_id) { + case USB_ID(0x0763, 0x2030): + num_outs = 6; + num_ins = 4; + break; + case USB_ID(0x0763, 0x2031): + num_outs = 8; + num_ins = 6; + break; + } + + for (chan = 0; chan < num_outs + num_ins; chan++) { + if (chan < num_outs) { + snprintf(name, sizeof(name), + "Effect Send DOut%d", + chan + 1); + } else { + snprintf(name, sizeof(name), + "Effect Send AIn%d", + chan - num_outs + 1); + } + + cmask = (chan == 0) ? 0 : 1 << (chan - 1); + err = snd_create_std_mono_ctl(mixer, id, control, + cmask, val_type, name, + &snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + + return 0; +} + +static int snd_c400_create_effect_ret_vol_ctls(struct usb_mixer_interface *mixer) +{ + char name[64]; + unsigned int cmask; + int chan, err; + int num_outs = 0; + int offset = 0; + + const unsigned int id = 0x40; + const int val_type = USB_MIXER_S16; + const int control = 1; + + switch (mixer->chip->usb_id) { + case USB_ID(0x0763, 0x2030): + num_outs = 6; + offset = 0x3c; + /* { 0x3c, 0x43, 0x3e, 0x45, 0x40, 0x47 } */ + break; + case USB_ID(0x0763, 0x2031): + num_outs = 8; + offset = 0x70; + /* { 0x70, 0x79, 0x72, 0x7b, 0x74, 0x7d, 0x76, 0x7f } */ + break; + } + + for (chan = 0; chan < num_outs; chan++) { + snprintf(name, sizeof(name), + "Effect Return %d", + chan + 1); + + cmask = (chan == 0) ? 0 : + 1 << (chan + (chan % 2) * num_outs - 1); + err = snd_create_std_mono_ctl_offset(mixer, id, control, + cmask, val_type, offset, name, + &snd_usb_mixer_vol_tlv); + if (err < 0) + return err; + } + + return 0; +} + +static int snd_c400_create_mixer(struct usb_mixer_interface *mixer) +{ + int err; + + err = snd_c400_create_vol_ctls(mixer); + if (err < 0) + return err; + + err = snd_c400_create_effect_vol_ctls(mixer); + if (err < 0) + return err; + + err = snd_c400_create_effect_ret_vol_ctls(mixer); + if (err < 0) + return err; + + err = snd_ftu_create_effect_switch(mixer, 2, 0x43); + if (err < 0) + return err; + + err = snd_c400_create_effect_volume_ctl(mixer); + if (err < 0) + return err; + + err = snd_c400_create_effect_duration_ctl(mixer); + if (err < 0) + return err; + + err = snd_c400_create_effect_feedback_ctl(mixer); + if (err < 0) + return err; + + return 0; +} + +/* + * The mixer units for Ebox-44 are corrupt, and even where they + * are valid they presents mono controls as L and R channels of + * stereo. So we provide a good mixer here. + */ +static const struct std_mono_table ebox44_table[] = { + { + .unitid = 4, + .control = 1, + .cmask = 0x0, + .val_type = USB_MIXER_INV_BOOLEAN, + .name = "Headphone Playback Switch" + }, + { + .unitid = 4, + .control = 2, + .cmask = 0x1, + .val_type = USB_MIXER_S16, + .name = "Headphone A Mix Playback Volume" + }, + { + .unitid = 4, + .control = 2, + .cmask = 0x2, + .val_type = USB_MIXER_S16, + .name = "Headphone B Mix Playback Volume" + }, + + { + .unitid = 7, + .control = 1, + .cmask = 0x0, + .val_type = USB_MIXER_INV_BOOLEAN, + .name = "Output Playback Switch" + }, + { + .unitid = 7, + .control = 2, + .cmask = 0x1, + .val_type = USB_MIXER_S16, + .name = "Output A Playback Volume" + }, + { + .unitid = 7, + .control = 2, + .cmask = 0x2, + .val_type = USB_MIXER_S16, + .name = "Output B Playback Volume" + }, + + { + .unitid = 10, + .control = 1, + .cmask = 0x0, + .val_type = USB_MIXER_INV_BOOLEAN, + .name = "Input Capture Switch" + }, + { + .unitid = 10, + .control = 2, + .cmask = 0x1, + .val_type = USB_MIXER_S16, + .name = "Input A Capture Volume" + }, + { + .unitid = 10, + .control = 2, + .cmask = 0x2, + .val_type = USB_MIXER_S16, + .name = "Input B Capture Volume" + }, + + {} +}; + +/* Audio Advantage Micro II findings: + * + * Mapping spdif AES bits to vendor register.bit: + * AES0: [0 0 0 0 2.3 2.2 2.1 2.0] - default 0x00 + * AES1: [3.3 3.2.3.1.3.0 2.7 2.6 2.5 2.4] - default: 0x01 + * AES2: [0 0 0 0 0 0 0 0] + * AES3: [0 0 0 0 0 0 x 0] - 'x' bit is set basing on standard usb request + * (UAC_EP_CS_ATTR_SAMPLE_RATE) for Audio Devices + * + * power on values: + * r2: 0x10 + * r3: 0x20 (b7 is zeroed just before playback (except IEC61937) and set + * just after it to 0xa0, presumably it disables/mutes some analog + * parts when there is no audio.) + * r9: 0x28 + * + * Optical transmitter on/off: + * vendor register.bit: 9.1 + * 0 - on (0x28 register value) + * 1 - off (0x2a register value) + * + */ +static int snd_microii_spdif_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; + uinfo->count = 1; + return 0; +} + +static int snd_microii_spdif_default_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + struct snd_usb_audio *chip = list->mixer->chip; + int err; + struct usb_interface *iface; + struct usb_host_interface *alts; + unsigned int ep; + unsigned char data[3]; + int rate; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + ucontrol->value.iec958.status[0] = kcontrol->private_value & 0xff; + ucontrol->value.iec958.status[1] = (kcontrol->private_value >> 8) & 0xff; + ucontrol->value.iec958.status[2] = 0x00; + + /* use known values for that card: interface#1 altsetting#1 */ + iface = usb_ifnum_to_if(chip->dev, 1); + if (!iface || iface->num_altsetting < 2) { + err = -EINVAL; + goto end; + } + alts = &iface->altsetting[1]; + if (get_iface_desc(alts)->bNumEndpoints < 1) { + err = -EINVAL; + goto end; + } + ep = get_endpoint(alts, 0)->bEndpointAddress; + + err = snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), + UAC_GET_CUR, + USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_IN, + UAC_EP_CS_ATTR_SAMPLE_RATE << 8, + ep, + data, + sizeof(data)); + if (err < 0) + goto end; + + rate = data[0] | (data[1] << 8) | (data[2] << 16); + ucontrol->value.iec958.status[3] = (rate == 48000) ? + IEC958_AES3_CON_FS_48000 : IEC958_AES3_CON_FS_44100; + + err = 0; + end: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_microii_spdif_default_update(struct usb_mixer_elem_list *list) +{ + struct snd_usb_audio *chip = list->mixer->chip; + unsigned int pval = list->kctl->private_value; + u8 reg; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + reg = ((pval >> 4) & 0xf0) | (pval & 0x0f); + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), + UAC_SET_CUR, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + reg, + 2, + NULL, + 0); + if (err < 0) + goto end; + + reg = (pval & IEC958_AES0_NONAUDIO) ? 0xa0 : 0x20; + reg |= (pval >> 12) & 0x0f; + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), + UAC_SET_CUR, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + reg, + 3, + NULL, + 0); + if (err < 0) + goto end; + + end: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_microii_spdif_default_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + unsigned int pval, pval_old; + int err; + + pval = pval_old = kcontrol->private_value; + pval &= 0xfffff0f0; + pval |= (ucontrol->value.iec958.status[1] & 0x0f) << 8; + pval |= (ucontrol->value.iec958.status[0] & 0x0f); + + pval &= 0xffff0fff; + pval |= (ucontrol->value.iec958.status[1] & 0xf0) << 8; + + /* The frequency bits in AES3 cannot be set via register access. */ + + /* Silently ignore any bits from the request that cannot be set. */ + + if (pval == pval_old) + return 0; + + kcontrol->private_value = pval; + err = snd_microii_spdif_default_update(list); + return err < 0 ? err : 1; +} + +static int snd_microii_spdif_mask_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.iec958.status[0] = 0x0f; + ucontrol->value.iec958.status[1] = 0xff; + ucontrol->value.iec958.status[2] = 0x00; + ucontrol->value.iec958.status[3] = 0x00; + + return 0; +} + +static int snd_microii_spdif_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = !(kcontrol->private_value & 0x02); + + return 0; +} + +static int snd_microii_spdif_switch_update(struct usb_mixer_elem_list *list) +{ + struct snd_usb_audio *chip = list->mixer->chip; + u8 reg = list->kctl->private_value; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), + UAC_SET_CUR, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + reg, + 9, + NULL, + 0); + + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_microii_spdif_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + u8 reg; + int err; + + reg = ucontrol->value.integer.value[0] ? 0x28 : 0x2a; + if (reg != list->kctl->private_value) + return 0; + + kcontrol->private_value = reg; + err = snd_microii_spdif_switch_update(list); + return err < 0 ? err : 1; +} + +static const struct snd_kcontrol_new snd_microii_mixer_spdif[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), + .info = snd_microii_spdif_info, + .get = snd_microii_spdif_default_get, + .put = snd_microii_spdif_default_put, + .private_value = 0x00000100UL,/* reset value */ + }, + { + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), + .info = snd_microii_spdif_info, + .get = snd_microii_spdif_mask_get, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, SWITCH), + .info = snd_ctl_boolean_mono_info, + .get = snd_microii_spdif_switch_get, + .put = snd_microii_spdif_switch_put, + .private_value = 0x00000028UL,/* reset value */ + } +}; + +static int snd_microii_controls_create(struct usb_mixer_interface *mixer) +{ + int err, i; + static const usb_mixer_elem_resume_func_t resume_funcs[] = { + snd_microii_spdif_default_update, + NULL, + snd_microii_spdif_switch_update + }; + + for (i = 0; i < ARRAY_SIZE(snd_microii_mixer_spdif); ++i) { + err = add_single_ctl_with_resume(mixer, 0, + resume_funcs[i], + &snd_microii_mixer_spdif[i], + NULL); + if (err < 0) + return err; + } + + return 0; +} + +/* Creative Sound Blaster E1 */ + +static int snd_soundblaster_e1_switch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = kcontrol->private_value; + return 0; +} + +static int snd_soundblaster_e1_switch_update(struct usb_mixer_interface *mixer, + unsigned char state) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + unsigned char buff[2]; + + buff[0] = 0x02; + buff[1] = state ? 0x02 : 0x00; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), HID_REQ_SET_REPORT, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + 0x0202, 3, buff, 2); + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_soundblaster_e1_switch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + unsigned char value = !!ucontrol->value.integer.value[0]; + int err; + + if (kcontrol->private_value == value) + return 0; + kcontrol->private_value = value; + err = snd_soundblaster_e1_switch_update(list->mixer, value); + return err < 0 ? err : 1; +} + +static int snd_soundblaster_e1_switch_resume(struct usb_mixer_elem_list *list) +{ + return snd_soundblaster_e1_switch_update(list->mixer, + list->kctl->private_value); +} + +static int snd_soundblaster_e1_switch_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const texts[2] = { + "Mic", "Aux" + }; + + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); +} + +static const struct snd_kcontrol_new snd_soundblaster_e1_input_switch = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Input Source", + .info = snd_soundblaster_e1_switch_info, + .get = snd_soundblaster_e1_switch_get, + .put = snd_soundblaster_e1_switch_put, + .private_value = 0, +}; + +static int snd_soundblaster_e1_switch_create(struct usb_mixer_interface *mixer) +{ + return add_single_ctl_with_resume(mixer, 0, + snd_soundblaster_e1_switch_resume, + &snd_soundblaster_e1_input_switch, + NULL); +} + +/* + * Dell WD15 dock jack detection + * + * The WD15 contains an ALC4020 USB audio controller and ALC3263 audio codec + * from Realtek. It is a UAC 1 device, and UAC 1 does not support jack + * detection. Instead, jack detection works by sending HD Audio commands over + * vendor-type USB messages. + */ + +#define HDA_VERB_CMD(V, N, D) (((N) << 20) | ((V) << 8) | (D)) + +#define REALTEK_HDA_VALUE 0x0038 + +#define REALTEK_HDA_SET 62 +#define REALTEK_MANUAL_MODE 72 +#define REALTEK_HDA_GET_OUT 88 +#define REALTEK_HDA_GET_IN 89 + +#define REALTEK_AUDIO_FUNCTION_GROUP 0x01 +#define REALTEK_LINE1 0x1a +#define REALTEK_VENDOR_REGISTERS 0x20 +#define REALTEK_HP_OUT 0x21 + +#define REALTEK_CBJ_CTRL2 0x50 + +#define REALTEK_JACK_INTERRUPT_NODE 5 + +#define REALTEK_MIC_FLAG 0x100 + +static int realtek_hda_set(struct snd_usb_audio *chip, u32 cmd) +{ + struct usb_device *dev = chip->dev; + __be32 buf = cpu_to_be32(cmd); + + return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), REALTEK_HDA_SET, + USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_OUT, + REALTEK_HDA_VALUE, 0, &buf, sizeof(buf)); +} + +static int realtek_hda_get(struct snd_usb_audio *chip, u32 cmd, u32 *value) +{ + struct usb_device *dev = chip->dev; + int err; + __be32 buf = cpu_to_be32(cmd); + + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), REALTEK_HDA_GET_OUT, + USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_OUT, + REALTEK_HDA_VALUE, 0, &buf, sizeof(buf)); + if (err < 0) + return err; + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), REALTEK_HDA_GET_IN, + USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_IN, + REALTEK_HDA_VALUE, 0, &buf, sizeof(buf)); + if (err < 0) + return err; + + *value = be32_to_cpu(buf); + return 0; +} + +static int realtek_ctl_connector_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *cval = kcontrol->private_data; + struct snd_usb_audio *chip = cval->head.mixer->chip; + u32 pv = kcontrol->private_value; + u32 node_id = pv & 0xff; + u32 sense; + u32 cbj_ctrl2; + bool presence; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + err = realtek_hda_get(chip, + HDA_VERB_CMD(AC_VERB_GET_PIN_SENSE, node_id, 0), + &sense); + if (err < 0) + goto err; + if (pv & REALTEK_MIC_FLAG) { + err = realtek_hda_set(chip, + HDA_VERB_CMD(AC_VERB_SET_COEF_INDEX, + REALTEK_VENDOR_REGISTERS, + REALTEK_CBJ_CTRL2)); + if (err < 0) + goto err; + err = realtek_hda_get(chip, + HDA_VERB_CMD(AC_VERB_GET_PROC_COEF, + REALTEK_VENDOR_REGISTERS, 0), + &cbj_ctrl2); + if (err < 0) + goto err; + } +err: + snd_usb_unlock_shutdown(chip); + if (err < 0) + return err; + + presence = sense & AC_PINSENSE_PRESENCE; + if (pv & REALTEK_MIC_FLAG) + presence = presence && (cbj_ctrl2 & 0x0070) == 0x0070; + ucontrol->value.integer.value[0] = presence; + return 0; +} + +static const struct snd_kcontrol_new realtek_connector_ctl_ro = { + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .name = "", /* will be filled later manually */ + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_ctl_boolean_mono_info, + .get = realtek_ctl_connector_get, +}; + +static int realtek_resume_jack(struct usb_mixer_elem_list *list) +{ + snd_ctl_notify(list->mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &list->kctl->id); + return 0; +} + +static int realtek_add_jack(struct usb_mixer_interface *mixer, + char *name, u32 val) +{ + struct usb_mixer_elem_info *cval; + struct snd_kcontrol *kctl; + + cval = kzalloc(sizeof(*cval), GFP_KERNEL); + if (!cval) + return -ENOMEM; + snd_usb_mixer_elem_init_std(&cval->head, mixer, + REALTEK_JACK_INTERRUPT_NODE); + cval->head.resume = realtek_resume_jack; + cval->val_type = USB_MIXER_BOOLEAN; + cval->channels = 1; + cval->min = 0; + cval->max = 1; + kctl = snd_ctl_new1(&realtek_connector_ctl_ro, cval); + if (!kctl) { + kfree(cval); + return -ENOMEM; + } + kctl->private_value = val; + strscpy(kctl->id.name, name, sizeof(kctl->id.name)); + kctl->private_free = snd_usb_mixer_elem_free; + return snd_usb_mixer_add_control(&cval->head, kctl); +} + +static int dell_dock_mixer_create(struct usb_mixer_interface *mixer) +{ + int err; + struct usb_device *dev = mixer->chip->dev; + + /* Power down the audio codec to avoid loud pops in the next step. */ + realtek_hda_set(mixer->chip, + HDA_VERB_CMD(AC_VERB_SET_POWER_STATE, + REALTEK_AUDIO_FUNCTION_GROUP, + AC_PWRST_D3)); + + /* + * Turn off 'manual mode' in case it was enabled. This removes the need + * to power cycle the dock after it was attached to a Windows machine. + */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), REALTEK_MANUAL_MODE, + USB_RECIP_DEVICE | USB_TYPE_VENDOR | USB_DIR_OUT, + 0, 0, NULL, 0); + + err = realtek_add_jack(mixer, "Line Out Jack", REALTEK_LINE1); + if (err < 0) + return err; + err = realtek_add_jack(mixer, "Headphone Jack", REALTEK_HP_OUT); + if (err < 0) + return err; + err = realtek_add_jack(mixer, "Headset Mic Jack", + REALTEK_HP_OUT | REALTEK_MIC_FLAG); + if (err < 0) + return err; + return 0; +} + +static void dell_dock_init_vol(struct snd_usb_audio *chip, int ch, int id) +{ + u16 buf = 0; + + snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), UAC_SET_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + (UAC_FU_VOLUME << 8) | ch, + snd_usb_ctrl_intf(chip) | (id << 8), + &buf, 2); +} + +static int dell_dock_mixer_init(struct usb_mixer_interface *mixer) +{ + /* fix to 0dB playback volumes */ + dell_dock_init_vol(mixer->chip, 1, 16); + dell_dock_init_vol(mixer->chip, 2, 16); + dell_dock_init_vol(mixer->chip, 1, 19); + dell_dock_init_vol(mixer->chip, 2, 19); + return 0; +} + +/* RME Class Compliant device quirks */ + +#define SND_RME_GET_STATUS1 23 +#define SND_RME_GET_CURRENT_FREQ 17 +#define SND_RME_CLK_SYSTEM_SHIFT 16 +#define SND_RME_CLK_SYSTEM_MASK 0x1f +#define SND_RME_CLK_AES_SHIFT 8 +#define SND_RME_CLK_SPDIF_SHIFT 12 +#define SND_RME_CLK_AES_SPDIF_MASK 0xf +#define SND_RME_CLK_SYNC_SHIFT 6 +#define SND_RME_CLK_SYNC_MASK 0x3 +#define SND_RME_CLK_FREQMUL_SHIFT 18 +#define SND_RME_CLK_FREQMUL_MASK 0x7 +#define SND_RME_CLK_SYSTEM(x) \ + ((x >> SND_RME_CLK_SYSTEM_SHIFT) & SND_RME_CLK_SYSTEM_MASK) +#define SND_RME_CLK_AES(x) \ + ((x >> SND_RME_CLK_AES_SHIFT) & SND_RME_CLK_AES_SPDIF_MASK) +#define SND_RME_CLK_SPDIF(x) \ + ((x >> SND_RME_CLK_SPDIF_SHIFT) & SND_RME_CLK_AES_SPDIF_MASK) +#define SND_RME_CLK_SYNC(x) \ + ((x >> SND_RME_CLK_SYNC_SHIFT) & SND_RME_CLK_SYNC_MASK) +#define SND_RME_CLK_FREQMUL(x) \ + ((x >> SND_RME_CLK_FREQMUL_SHIFT) & SND_RME_CLK_FREQMUL_MASK) +#define SND_RME_CLK_AES_LOCK 0x1 +#define SND_RME_CLK_AES_SYNC 0x4 +#define SND_RME_CLK_SPDIF_LOCK 0x2 +#define SND_RME_CLK_SPDIF_SYNC 0x8 +#define SND_RME_SPDIF_IF_SHIFT 4 +#define SND_RME_SPDIF_FORMAT_SHIFT 5 +#define SND_RME_BINARY_MASK 0x1 +#define SND_RME_SPDIF_IF(x) \ + ((x >> SND_RME_SPDIF_IF_SHIFT) & SND_RME_BINARY_MASK) +#define SND_RME_SPDIF_FORMAT(x) \ + ((x >> SND_RME_SPDIF_FORMAT_SHIFT) & SND_RME_BINARY_MASK) + +static const u32 snd_rme_rate_table[] = { + 32000, 44100, 48000, 50000, + 64000, 88200, 96000, 100000, + 128000, 176400, 192000, 200000, + 256000, 352800, 384000, 400000, + 512000, 705600, 768000, 800000 +}; +/* maximum number of items for AES and S/PDIF rates for above table */ +#define SND_RME_RATE_IDX_AES_SPDIF_NUM 12 + +enum snd_rme_domain { + SND_RME_DOMAIN_SYSTEM, + SND_RME_DOMAIN_AES, + SND_RME_DOMAIN_SPDIF +}; + +enum snd_rme_clock_status { + SND_RME_CLOCK_NOLOCK, + SND_RME_CLOCK_LOCK, + SND_RME_CLOCK_SYNC +}; + +static int snd_rme_read_value(struct snd_usb_audio *chip, + unsigned int item, + u32 *value) +{ + struct usb_device *dev = chip->dev; + int err; + + err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + item, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 0, 0, + value, sizeof(*value)); + if (err < 0) + dev_err(&dev->dev, + "unable to issue vendor read request %d (ret = %d)", + item, err); + return err; +} + +static int snd_rme_get_status1(struct snd_kcontrol *kcontrol, + u32 *status1) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + struct snd_usb_audio *chip = list->mixer->chip; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + err = snd_rme_read_value(chip, SND_RME_GET_STATUS1, status1); + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_rme_rate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 status1; + u32 rate = 0; + int idx; + int err; + + err = snd_rme_get_status1(kcontrol, &status1); + if (err < 0) + return err; + switch (kcontrol->private_value) { + case SND_RME_DOMAIN_SYSTEM: + idx = SND_RME_CLK_SYSTEM(status1); + if (idx < ARRAY_SIZE(snd_rme_rate_table)) + rate = snd_rme_rate_table[idx]; + break; + case SND_RME_DOMAIN_AES: + idx = SND_RME_CLK_AES(status1); + if (idx < SND_RME_RATE_IDX_AES_SPDIF_NUM) + rate = snd_rme_rate_table[idx]; + break; + case SND_RME_DOMAIN_SPDIF: + idx = SND_RME_CLK_SPDIF(status1); + if (idx < SND_RME_RATE_IDX_AES_SPDIF_NUM) + rate = snd_rme_rate_table[idx]; + break; + default: + return -EINVAL; + } + ucontrol->value.integer.value[0] = rate; + return 0; +} + +static int snd_rme_sync_state_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 status1; + int idx = SND_RME_CLOCK_NOLOCK; + int err; + + err = snd_rme_get_status1(kcontrol, &status1); + if (err < 0) + return err; + switch (kcontrol->private_value) { + case SND_RME_DOMAIN_AES: /* AES */ + if (status1 & SND_RME_CLK_AES_SYNC) + idx = SND_RME_CLOCK_SYNC; + else if (status1 & SND_RME_CLK_AES_LOCK) + idx = SND_RME_CLOCK_LOCK; + break; + case SND_RME_DOMAIN_SPDIF: /* SPDIF */ + if (status1 & SND_RME_CLK_SPDIF_SYNC) + idx = SND_RME_CLOCK_SYNC; + else if (status1 & SND_RME_CLK_SPDIF_LOCK) + idx = SND_RME_CLOCK_LOCK; + break; + default: + return -EINVAL; + } + ucontrol->value.enumerated.item[0] = idx; + return 0; +} + +static int snd_rme_spdif_if_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 status1; + int err; + + err = snd_rme_get_status1(kcontrol, &status1); + if (err < 0) + return err; + ucontrol->value.enumerated.item[0] = SND_RME_SPDIF_IF(status1); + return 0; +} + +static int snd_rme_spdif_format_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 status1; + int err; + + err = snd_rme_get_status1(kcontrol, &status1); + if (err < 0) + return err; + ucontrol->value.enumerated.item[0] = SND_RME_SPDIF_FORMAT(status1); + return 0; +} + +static int snd_rme_sync_source_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 status1; + int err; + + err = snd_rme_get_status1(kcontrol, &status1); + if (err < 0) + return err; + ucontrol->value.enumerated.item[0] = SND_RME_CLK_SYNC(status1); + return 0; +} + +static int snd_rme_current_freq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + struct snd_usb_audio *chip = list->mixer->chip; + u32 status1; + const u64 num = 104857600000000ULL; + u32 den; + unsigned int freq; + int err; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + err = snd_rme_read_value(chip, SND_RME_GET_STATUS1, &status1); + if (err < 0) + goto end; + err = snd_rme_read_value(chip, SND_RME_GET_CURRENT_FREQ, &den); + if (err < 0) + goto end; + freq = (den == 0) ? 0 : div64_u64(num, den); + freq <<= SND_RME_CLK_FREQMUL(status1); + ucontrol->value.integer.value[0] = freq; + +end: + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_rme_rate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + switch (kcontrol->private_value) { + case SND_RME_DOMAIN_SYSTEM: + uinfo->value.integer.min = 32000; + uinfo->value.integer.max = 800000; + break; + case SND_RME_DOMAIN_AES: + case SND_RME_DOMAIN_SPDIF: + default: + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 200000; + } + uinfo->value.integer.step = 0; + return 0; +} + +static int snd_rme_sync_state_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const sync_states[] = { + "No Lock", "Lock", "Sync" + }; + + return snd_ctl_enum_info(uinfo, 1, + ARRAY_SIZE(sync_states), sync_states); +} + +static int snd_rme_spdif_if_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const spdif_if[] = { + "Coaxial", "Optical" + }; + + return snd_ctl_enum_info(uinfo, 1, + ARRAY_SIZE(spdif_if), spdif_if); +} + +static int snd_rme_spdif_format_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const optical_type[] = { + "Consumer", "Professional" + }; + + return snd_ctl_enum_info(uinfo, 1, + ARRAY_SIZE(optical_type), optical_type); +} + +static int snd_rme_sync_source_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const sync_sources[] = { + "Internal", "AES", "SPDIF", "Internal" + }; + + return snd_ctl_enum_info(uinfo, 1, + ARRAY_SIZE(sync_sources), sync_sources); +} + +static const struct snd_kcontrol_new snd_rme_controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "AES Rate", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_rate_info, + .get = snd_rme_rate_get, + .private_value = SND_RME_DOMAIN_AES + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "AES Sync", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_sync_state_info, + .get = snd_rme_sync_state_get, + .private_value = SND_RME_DOMAIN_AES + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "SPDIF Rate", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_rate_info, + .get = snd_rme_rate_get, + .private_value = SND_RME_DOMAIN_SPDIF + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "SPDIF Sync", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_sync_state_info, + .get = snd_rme_sync_state_get, + .private_value = SND_RME_DOMAIN_SPDIF + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "SPDIF Interface", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_spdif_if_info, + .get = snd_rme_spdif_if_get, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "SPDIF Format", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_spdif_format_info, + .get = snd_rme_spdif_format_get, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Sync Source", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_sync_source_info, + .get = snd_rme_sync_source_get + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "System Rate", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_rate_info, + .get = snd_rme_rate_get, + .private_value = SND_RME_DOMAIN_SYSTEM + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Current Frequency", + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .info = snd_rme_rate_info, + .get = snd_rme_current_freq_get + } +}; + +static int snd_rme_controls_create(struct usb_mixer_interface *mixer) +{ + int err, i; + + for (i = 0; i < ARRAY_SIZE(snd_rme_controls); ++i) { + err = add_single_ctl_with_resume(mixer, 0, + NULL, + &snd_rme_controls[i], + NULL); + if (err < 0) + return err; + } + + return 0; +} + +/* + * RME Babyface Pro (FS) + * + * These devices exposes a couple of DSP functions via request to EP0. + * Switches are available via control registers, while routing is controlled + * by controlling the volume on each possible crossing point. + * Volume control is linear, from -inf (dec. 0) to +6dB (dec. 65536) with + * 0dB being at dec. 32768. + */ +enum { + SND_BBFPRO_CTL_REG1 = 0, + SND_BBFPRO_CTL_REG2 +}; + +#define SND_BBFPRO_CTL_REG_MASK 1 +#define SND_BBFPRO_CTL_IDX_MASK 0xff +#define SND_BBFPRO_CTL_IDX_SHIFT 1 +#define SND_BBFPRO_CTL_VAL_MASK 1 +#define SND_BBFPRO_CTL_VAL_SHIFT 9 +#define SND_BBFPRO_CTL_REG1_CLK_MASTER 0 +#define SND_BBFPRO_CTL_REG1_CLK_OPTICAL 1 +#define SND_BBFPRO_CTL_REG1_SPDIF_PRO 7 +#define SND_BBFPRO_CTL_REG1_SPDIF_EMPH 8 +#define SND_BBFPRO_CTL_REG1_SPDIF_OPTICAL 10 +#define SND_BBFPRO_CTL_REG2_48V_AN1 0 +#define SND_BBFPRO_CTL_REG2_48V_AN2 1 +#define SND_BBFPRO_CTL_REG2_SENS_IN3 2 +#define SND_BBFPRO_CTL_REG2_SENS_IN4 3 +#define SND_BBFPRO_CTL_REG2_PAD_AN1 4 +#define SND_BBFPRO_CTL_REG2_PAD_AN2 5 + +#define SND_BBFPRO_MIXER_IDX_MASK 0x1ff +#define SND_BBFPRO_MIXER_VAL_MASK 0x3ffff +#define SND_BBFPRO_MIXER_VAL_SHIFT 9 +#define SND_BBFPRO_MIXER_VAL_MIN 0 // -inf +#define SND_BBFPRO_MIXER_VAL_MAX 65536 // +6dB + +#define SND_BBFPRO_USBREQ_CTL_REG1 0x10 +#define SND_BBFPRO_USBREQ_CTL_REG2 0x17 +#define SND_BBFPRO_USBREQ_MIXER 0x12 + +static int snd_bbfpro_ctl_update(struct usb_mixer_interface *mixer, u8 reg, + u8 index, u8 value) +{ + int err; + u16 usb_req, usb_idx, usb_val; + struct snd_usb_audio *chip = mixer->chip; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + if (reg == SND_BBFPRO_CTL_REG1) { + usb_req = SND_BBFPRO_USBREQ_CTL_REG1; + if (index == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) { + usb_idx = 3; + usb_val = value ? 3 : 0; + } else { + usb_idx = 1 << index; + usb_val = value ? usb_idx : 0; + } + } else { + usb_req = SND_BBFPRO_USBREQ_CTL_REG2; + usb_idx = 1 << index; + usb_val = value ? usb_idx : 0; + } + + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), usb_req, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + usb_val, usb_idx, NULL, 0); + + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_bbfpro_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u8 reg, idx, val; + int pv; + + pv = kcontrol->private_value; + reg = pv & SND_BBFPRO_CTL_REG_MASK; + idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; + val = kcontrol->private_value >> SND_BBFPRO_CTL_VAL_SHIFT; + + if ((reg == SND_BBFPRO_CTL_REG1 && + idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) || + (reg == SND_BBFPRO_CTL_REG2 && + (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 || + idx == SND_BBFPRO_CTL_REG2_SENS_IN4))) { + ucontrol->value.enumerated.item[0] = val; + } else { + ucontrol->value.integer.value[0] = val; + } + return 0; +} + +static int snd_bbfpro_ctl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u8 reg, idx; + int pv; + + pv = kcontrol->private_value; + reg = pv & SND_BBFPRO_CTL_REG_MASK; + idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; + + if (reg == SND_BBFPRO_CTL_REG1 && + idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) { + static const char * const texts[2] = { + "AutoSync", + "Internal" + }; + return snd_ctl_enum_info(uinfo, 1, 2, texts); + } else if (reg == SND_BBFPRO_CTL_REG2 && + (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 || + idx == SND_BBFPRO_CTL_REG2_SENS_IN4)) { + static const char * const texts[2] = { + "-10dBV", + "+4dBu" + }; + return snd_ctl_enum_info(uinfo, 1, 2, texts); + } + + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + return 0; +} + +static int snd_bbfpro_ctl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int err; + u8 reg, idx; + int old_value, pv, val; + + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + struct usb_mixer_interface *mixer = list->mixer; + + pv = kcontrol->private_value; + reg = pv & SND_BBFPRO_CTL_REG_MASK; + idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; + old_value = (pv >> SND_BBFPRO_CTL_VAL_SHIFT) & SND_BBFPRO_CTL_VAL_MASK; + + if ((reg == SND_BBFPRO_CTL_REG1 && + idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) || + (reg == SND_BBFPRO_CTL_REG2 && + (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 || + idx == SND_BBFPRO_CTL_REG2_SENS_IN4))) { + val = ucontrol->value.enumerated.item[0]; + } else { + val = ucontrol->value.integer.value[0]; + } + + if (val > 1) + return -EINVAL; + + if (val == old_value) + return 0; + + kcontrol->private_value = reg + | ((idx & SND_BBFPRO_CTL_IDX_MASK) << SND_BBFPRO_CTL_IDX_SHIFT) + | ((val & SND_BBFPRO_CTL_VAL_MASK) << SND_BBFPRO_CTL_VAL_SHIFT); + + err = snd_bbfpro_ctl_update(mixer, reg, idx, val); + return err < 0 ? err : 1; +} + +static int snd_bbfpro_ctl_resume(struct usb_mixer_elem_list *list) +{ + u8 reg, idx; + int value, pv; + + pv = list->kctl->private_value; + reg = pv & SND_BBFPRO_CTL_REG_MASK; + idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK; + value = (pv >> SND_BBFPRO_CTL_VAL_SHIFT) & SND_BBFPRO_CTL_VAL_MASK; + + return snd_bbfpro_ctl_update(list->mixer, reg, idx, value); +} + +static int snd_bbfpro_vol_update(struct usb_mixer_interface *mixer, u16 index, + u32 value) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + u16 idx; + u16 usb_idx, usb_val; + u32 v; + + err = snd_usb_lock_shutdown(chip); + if (err < 0) + return err; + + idx = index & SND_BBFPRO_MIXER_IDX_MASK; + // 18 bit linear volume, split so 2 bits end up in index. + v = value & SND_BBFPRO_MIXER_VAL_MASK; + usb_idx = idx | (v & 0x3) << 14; + usb_val = (v >> 2) & 0xffff; + + err = snd_usb_ctl_msg(chip->dev, + usb_sndctrlpipe(chip->dev, 0), + SND_BBFPRO_USBREQ_MIXER, + USB_DIR_OUT | USB_TYPE_VENDOR | + USB_RECIP_DEVICE, + usb_val, usb_idx, NULL, 0); + + snd_usb_unlock_shutdown(chip); + return err; +} + +static int snd_bbfpro_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = + kcontrol->private_value >> SND_BBFPRO_MIXER_VAL_SHIFT; + return 0; +} + +static int snd_bbfpro_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = SND_BBFPRO_MIXER_VAL_MIN; + uinfo->value.integer.max = SND_BBFPRO_MIXER_VAL_MAX; + return 0; +} + +static int snd_bbfpro_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int err; + u16 idx; + u32 new_val, old_value, uvalue; + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol); + struct usb_mixer_interface *mixer = list->mixer; + + uvalue = ucontrol->value.integer.value[0]; + idx = kcontrol->private_value & SND_BBFPRO_MIXER_IDX_MASK; + old_value = kcontrol->private_value >> SND_BBFPRO_MIXER_VAL_SHIFT; + + if (uvalue > SND_BBFPRO_MIXER_VAL_MAX) + return -EINVAL; + + if (uvalue == old_value) + return 0; + + new_val = uvalue & SND_BBFPRO_MIXER_VAL_MASK; + + kcontrol->private_value = idx + | (new_val << SND_BBFPRO_MIXER_VAL_SHIFT); + + err = snd_bbfpro_vol_update(mixer, idx, new_val); + return err < 0 ? err : 1; +} + +static int snd_bbfpro_vol_resume(struct usb_mixer_elem_list *list) +{ + int pv = list->kctl->private_value; + u16 idx = pv & SND_BBFPRO_MIXER_IDX_MASK; + u32 val = (pv >> SND_BBFPRO_MIXER_VAL_SHIFT) + & SND_BBFPRO_MIXER_VAL_MASK; + return snd_bbfpro_vol_update(list->mixer, idx, val); +} + +// Predfine elements +static const struct snd_kcontrol_new snd_bbfpro_ctl_control = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .index = 0, + .info = snd_bbfpro_ctl_info, + .get = snd_bbfpro_ctl_get, + .put = snd_bbfpro_ctl_put +}; + +static const struct snd_kcontrol_new snd_bbfpro_vol_control = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .index = 0, + .info = snd_bbfpro_vol_info, + .get = snd_bbfpro_vol_get, + .put = snd_bbfpro_vol_put +}; + +static int snd_bbfpro_ctl_add(struct usb_mixer_interface *mixer, u8 reg, + u8 index, char *name) +{ + struct snd_kcontrol_new knew = snd_bbfpro_ctl_control; + + knew.name = name; + knew.private_value = (reg & SND_BBFPRO_CTL_REG_MASK) + | ((index & SND_BBFPRO_CTL_IDX_MASK) + << SND_BBFPRO_CTL_IDX_SHIFT); + + return add_single_ctl_with_resume(mixer, 0, snd_bbfpro_ctl_resume, + &knew, NULL); +} + +static int snd_bbfpro_vol_add(struct usb_mixer_interface *mixer, u16 index, + char *name) +{ + struct snd_kcontrol_new knew = snd_bbfpro_vol_control; + + knew.name = name; + knew.private_value = index & SND_BBFPRO_MIXER_IDX_MASK; + + return add_single_ctl_with_resume(mixer, 0, snd_bbfpro_vol_resume, + &knew, NULL); +} + +static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer) +{ + int err, i, o; + char name[48]; + + static const char * const input[] = { + "AN1", "AN2", "IN3", "IN4", "AS1", "AS2", "ADAT3", + "ADAT4", "ADAT5", "ADAT6", "ADAT7", "ADAT8"}; + + static const char * const output[] = { + "AN1", "AN2", "PH3", "PH4", "AS1", "AS2", "ADAT3", "ADAT4", + "ADAT5", "ADAT6", "ADAT7", "ADAT8"}; + + for (o = 0 ; o < 12 ; ++o) { + for (i = 0 ; i < 12 ; ++i) { + // Line routing + snprintf(name, sizeof(name), + "%s-%s-%s Playback Volume", + (i < 2 ? "Mic" : "Line"), + input[i], output[o]); + err = snd_bbfpro_vol_add(mixer, (26 * o + i), name); + if (err < 0) + return err; + + // PCM routing... yes, it is output remapping + snprintf(name, sizeof(name), + "PCM-%s-%s Playback Volume", + output[i], output[o]); + err = snd_bbfpro_vol_add(mixer, (26 * o + 12 + i), + name); + if (err < 0) + return err; + } + } + + // Control Reg 1 + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, + SND_BBFPRO_CTL_REG1_CLK_OPTICAL, + "Sample Clock Source"); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, + SND_BBFPRO_CTL_REG1_SPDIF_PRO, + "IEC958 Pro Mask"); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, + SND_BBFPRO_CTL_REG1_SPDIF_EMPH, + "IEC958 Emphasis"); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1, + SND_BBFPRO_CTL_REG1_SPDIF_OPTICAL, + "IEC958 Switch"); + if (err < 0) + return err; + + // Control Reg 2 + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, + SND_BBFPRO_CTL_REG2_48V_AN1, + "Mic-AN1 48V"); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, + SND_BBFPRO_CTL_REG2_48V_AN2, + "Mic-AN2 48V"); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, + SND_BBFPRO_CTL_REG2_SENS_IN3, + "Line-IN3 Sens."); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, + SND_BBFPRO_CTL_REG2_SENS_IN4, + "Line-IN4 Sens."); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, + SND_BBFPRO_CTL_REG2_PAD_AN1, + "Mic-AN1 PAD"); + if (err < 0) + return err; + + err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2, + SND_BBFPRO_CTL_REG2_PAD_AN2, + "Mic-AN2 PAD"); + if (err < 0) + return err; + + return 0; +} + +/* + * Pioneer DJ DJM Mixers + * + * These devices generally have options for soft-switching the playback and + * capture sources in addition to the recording level. Although different + * devices have different configurations, there seems to be canonical values + * for specific capture/playback types: See the definitions of these below. + * + * The wValue is masked with the stereo channel number. e.g. Setting Ch2 to + * capture phono would be 0x0203. Capture, playback and capture level have + * different wIndexes. + */ + +// Capture types +#define SND_DJM_CAP_LINE 0x00 +#define SND_DJM_CAP_CDLINE 0x01 +#define SND_DJM_CAP_DIGITAL 0x02 +#define SND_DJM_CAP_PHONO 0x03 +#define SND_DJM_CAP_PFADER 0x06 +#define SND_DJM_CAP_XFADERA 0x07 +#define SND_DJM_CAP_XFADERB 0x08 +#define SND_DJM_CAP_MIC 0x09 +#define SND_DJM_CAP_AUX 0x0d +#define SND_DJM_CAP_RECOUT 0x0a +#define SND_DJM_CAP_NONE 0x0f +#define SND_DJM_CAP_CH1PFADER 0x11 +#define SND_DJM_CAP_CH2PFADER 0x12 +#define SND_DJM_CAP_CH3PFADER 0x13 +#define SND_DJM_CAP_CH4PFADER 0x14 + +// Playback types +#define SND_DJM_PB_CH1 0x00 +#define SND_DJM_PB_CH2 0x01 +#define SND_DJM_PB_AUX 0x04 + +#define SND_DJM_WINDEX_CAP 0x8002 +#define SND_DJM_WINDEX_CAPLVL 0x8003 +#define SND_DJM_WINDEX_PB 0x8016 + +// kcontrol->private_value layout +#define SND_DJM_VALUE_MASK 0x0000ffff +#define SND_DJM_GROUP_MASK 0x00ff0000 +#define SND_DJM_DEVICE_MASK 0xff000000 +#define SND_DJM_GROUP_SHIFT 16 +#define SND_DJM_DEVICE_SHIFT 24 + +// device table index +// used for the snd_djm_devices table, so please update accordingly +#define SND_DJM_250MK2_IDX 0x0 +#define SND_DJM_750_IDX 0x1 +#define SND_DJM_850_IDX 0x2 +#define SND_DJM_900NXS2_IDX 0x3 +#define SND_DJM_750MK2_IDX 0x4 +#define SND_DJM_450_IDX 0x5 + + +#define SND_DJM_CTL(_name, suffix, _default_value, _windex) { \ + .name = _name, \ + .options = snd_djm_opts_##suffix, \ + .noptions = ARRAY_SIZE(snd_djm_opts_##suffix), \ + .default_value = _default_value, \ + .wIndex = _windex } + +#define SND_DJM_DEVICE(suffix) { \ + .controls = snd_djm_ctls_##suffix, \ + .ncontrols = ARRAY_SIZE(snd_djm_ctls_##suffix) } + + +struct snd_djm_device { + const char *name; + const struct snd_djm_ctl *controls; + size_t ncontrols; +}; + +struct snd_djm_ctl { + const char *name; + const u16 *options; + size_t noptions; + u16 default_value; + u16 wIndex; +}; + +static const char *snd_djm_get_label_caplevel(u16 wvalue) +{ + switch (wvalue) { + case 0x0000: return "-19dB"; + case 0x0100: return "-15dB"; + case 0x0200: return "-10dB"; + case 0x0300: return "-5dB"; + default: return NULL; + } +}; + +static const char *snd_djm_get_label_cap_common(u16 wvalue) +{ + switch (wvalue & 0x00ff) { + case SND_DJM_CAP_LINE: return "Control Tone LINE"; + case SND_DJM_CAP_CDLINE: return "Control Tone CD/LINE"; + case SND_DJM_CAP_DIGITAL: return "Control Tone DIGITAL"; + case SND_DJM_CAP_PHONO: return "Control Tone PHONO"; + case SND_DJM_CAP_PFADER: return "Post Fader"; + case SND_DJM_CAP_XFADERA: return "Cross Fader A"; + case SND_DJM_CAP_XFADERB: return "Cross Fader B"; + case SND_DJM_CAP_MIC: return "Mic"; + case SND_DJM_CAP_RECOUT: return "Rec Out"; + case SND_DJM_CAP_AUX: return "Aux"; + case SND_DJM_CAP_NONE: return "None"; + case SND_DJM_CAP_CH1PFADER: return "Post Fader Ch1"; + case SND_DJM_CAP_CH2PFADER: return "Post Fader Ch2"; + case SND_DJM_CAP_CH3PFADER: return "Post Fader Ch3"; + case SND_DJM_CAP_CH4PFADER: return "Post Fader Ch4"; + default: return NULL; + } +}; + +// The DJM-850 has different values for CD/LINE and LINE capture +// control options than the other DJM declared in this file. +static const char *snd_djm_get_label_cap_850(u16 wvalue) +{ + switch (wvalue & 0x00ff) { + case 0x00: return "Control Tone CD/LINE"; + case 0x01: return "Control Tone LINE"; + default: return snd_djm_get_label_cap_common(wvalue); + } +}; + +static const char *snd_djm_get_label_cap(u8 device_idx, u16 wvalue) +{ + switch (device_idx) { + case SND_DJM_850_IDX: return snd_djm_get_label_cap_850(wvalue); + default: return snd_djm_get_label_cap_common(wvalue); + } +}; + +static const char *snd_djm_get_label_pb(u16 wvalue) +{ + switch (wvalue & 0x00ff) { + case SND_DJM_PB_CH1: return "Ch1"; + case SND_DJM_PB_CH2: return "Ch2"; + case SND_DJM_PB_AUX: return "Aux"; + default: return NULL; + } +}; + +static const char *snd_djm_get_label(u8 device_idx, u16 wvalue, u16 windex) +{ + switch (windex) { + case SND_DJM_WINDEX_CAPLVL: return snd_djm_get_label_caplevel(wvalue); + case SND_DJM_WINDEX_CAP: return snd_djm_get_label_cap(device_idx, wvalue); + case SND_DJM_WINDEX_PB: return snd_djm_get_label_pb(wvalue); + default: return NULL; + } +}; + +// common DJM capture level option values +static const u16 snd_djm_opts_cap_level[] = { + 0x0000, 0x0100, 0x0200, 0x0300 }; + + +// DJM-250MK2 +static const u16 snd_djm_opts_250mk2_cap1[] = { + 0x0103, 0x0100, 0x0106, 0x0107, 0x0108, 0x0109, 0x010d, 0x010a }; + +static const u16 snd_djm_opts_250mk2_cap2[] = { + 0x0203, 0x0200, 0x0206, 0x0207, 0x0208, 0x0209, 0x020d, 0x020a }; + +static const u16 snd_djm_opts_250mk2_cap3[] = { + 0x030a, 0x0311, 0x0312, 0x0307, 0x0308, 0x0309, 0x030d }; + +static const u16 snd_djm_opts_250mk2_pb1[] = { 0x0100, 0x0101, 0x0104 }; +static const u16 snd_djm_opts_250mk2_pb2[] = { 0x0200, 0x0201, 0x0204 }; +static const u16 snd_djm_opts_250mk2_pb3[] = { 0x0300, 0x0301, 0x0304 }; + +static const struct snd_djm_ctl snd_djm_ctls_250mk2[] = { + SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL), + SND_DJM_CTL("Ch1 Input", 250mk2_cap1, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch2 Input", 250mk2_cap2, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch3 Input", 250mk2_cap3, 0, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch1 Output", 250mk2_pb1, 0, SND_DJM_WINDEX_PB), + SND_DJM_CTL("Ch2 Output", 250mk2_pb2, 1, SND_DJM_WINDEX_PB), + SND_DJM_CTL("Ch3 Output", 250mk2_pb3, 2, SND_DJM_WINDEX_PB) +}; + + +// DJM-450 +static const u16 snd_djm_opts_450_cap1[] = { + 0x0103, 0x0100, 0x0106, 0x0107, 0x0108, 0x0109, 0x010d, 0x010a }; + +static const u16 snd_djm_opts_450_cap2[] = { + 0x0203, 0x0200, 0x0206, 0x0207, 0x0208, 0x0209, 0x020d, 0x020a }; + +static const u16 snd_djm_opts_450_cap3[] = { + 0x030a, 0x0311, 0x0312, 0x0307, 0x0308, 0x0309, 0x030d }; + +static const u16 snd_djm_opts_450_pb1[] = { 0x0100, 0x0101, 0x0104 }; +static const u16 snd_djm_opts_450_pb2[] = { 0x0200, 0x0201, 0x0204 }; +static const u16 snd_djm_opts_450_pb3[] = { 0x0300, 0x0301, 0x0304 }; + +static const struct snd_djm_ctl snd_djm_ctls_450[] = { + SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL), + SND_DJM_CTL("Ch1 Input", 450_cap1, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch2 Input", 450_cap2, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch3 Input", 450_cap3, 0, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch1 Output", 450_pb1, 0, SND_DJM_WINDEX_PB), + SND_DJM_CTL("Ch2 Output", 450_pb2, 1, SND_DJM_WINDEX_PB), + SND_DJM_CTL("Ch3 Output", 450_pb3, 2, SND_DJM_WINDEX_PB) +}; + + +// DJM-750 +static const u16 snd_djm_opts_750_cap1[] = { + 0x0101, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a, 0x010f }; +static const u16 snd_djm_opts_750_cap2[] = { + 0x0200, 0x0201, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a, 0x020f }; +static const u16 snd_djm_opts_750_cap3[] = { + 0x0300, 0x0301, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a, 0x030f }; +static const u16 snd_djm_opts_750_cap4[] = { + 0x0401, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a, 0x040f }; + +static const struct snd_djm_ctl snd_djm_ctls_750[] = { + SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL), + SND_DJM_CTL("Ch1 Input", 750_cap1, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch2 Input", 750_cap2, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch3 Input", 750_cap3, 0, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch4 Input", 750_cap4, 0, SND_DJM_WINDEX_CAP) +}; + + +// DJM-850 +static const u16 snd_djm_opts_850_cap1[] = { + 0x0100, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a, 0x010f }; +static const u16 snd_djm_opts_850_cap2[] = { + 0x0200, 0x0201, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a, 0x020f }; +static const u16 snd_djm_opts_850_cap3[] = { + 0x0300, 0x0301, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a, 0x030f }; +static const u16 snd_djm_opts_850_cap4[] = { + 0x0400, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a, 0x040f }; + +static const struct snd_djm_ctl snd_djm_ctls_850[] = { + SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL), + SND_DJM_CTL("Ch1 Input", 850_cap1, 1, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch2 Input", 850_cap2, 0, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch3 Input", 850_cap3, 0, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch4 Input", 850_cap4, 1, SND_DJM_WINDEX_CAP) +}; + + +// DJM-900NXS2 +static const u16 snd_djm_opts_900nxs2_cap1[] = { + 0x0100, 0x0102, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a }; +static const u16 snd_djm_opts_900nxs2_cap2[] = { + 0x0200, 0x0202, 0x0203, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a }; +static const u16 snd_djm_opts_900nxs2_cap3[] = { + 0x0300, 0x0302, 0x0303, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a }; +static const u16 snd_djm_opts_900nxs2_cap4[] = { + 0x0400, 0x0402, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a }; +static const u16 snd_djm_opts_900nxs2_cap5[] = { + 0x0507, 0x0508, 0x0509, 0x050a, 0x0511, 0x0512, 0x0513, 0x0514 }; + +static const struct snd_djm_ctl snd_djm_ctls_900nxs2[] = { + SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL), + SND_DJM_CTL("Ch1 Input", 900nxs2_cap1, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch2 Input", 900nxs2_cap2, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch3 Input", 900nxs2_cap3, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch4 Input", 900nxs2_cap4, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch5 Input", 900nxs2_cap5, 3, SND_DJM_WINDEX_CAP) +}; + +// DJM-750MK2 +static const u16 snd_djm_opts_750mk2_cap1[] = { + 0x0100, 0x0102, 0x0103, 0x0106, 0x0107, 0x0108, 0x0109, 0x010a }; +static const u16 snd_djm_opts_750mk2_cap2[] = { + 0x0200, 0x0202, 0x0203, 0x0206, 0x0207, 0x0208, 0x0209, 0x020a }; +static const u16 snd_djm_opts_750mk2_cap3[] = { + 0x0300, 0x0302, 0x0303, 0x0306, 0x0307, 0x0308, 0x0309, 0x030a }; +static const u16 snd_djm_opts_750mk2_cap4[] = { + 0x0400, 0x0402, 0x0403, 0x0406, 0x0407, 0x0408, 0x0409, 0x040a }; +static const u16 snd_djm_opts_750mk2_cap5[] = { + 0x0507, 0x0508, 0x0509, 0x050a, 0x0511, 0x0512, 0x0513, 0x0514 }; + +static const u16 snd_djm_opts_750mk2_pb1[] = { 0x0100, 0x0101, 0x0104 }; +static const u16 snd_djm_opts_750mk2_pb2[] = { 0x0200, 0x0201, 0x0204 }; +static const u16 snd_djm_opts_750mk2_pb3[] = { 0x0300, 0x0301, 0x0304 }; + + +static const struct snd_djm_ctl snd_djm_ctls_750mk2[] = { + SND_DJM_CTL("Capture Level", cap_level, 0, SND_DJM_WINDEX_CAPLVL), + SND_DJM_CTL("Ch1 Input", 750mk2_cap1, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch2 Input", 750mk2_cap2, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch3 Input", 750mk2_cap3, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch4 Input", 750mk2_cap4, 2, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch5 Input", 750mk2_cap5, 3, SND_DJM_WINDEX_CAP), + SND_DJM_CTL("Ch1 Output", 750mk2_pb1, 0, SND_DJM_WINDEX_PB), + SND_DJM_CTL("Ch2 Output", 750mk2_pb2, 1, SND_DJM_WINDEX_PB), + SND_DJM_CTL("Ch3 Output", 750mk2_pb3, 2, SND_DJM_WINDEX_PB) +}; + + +static const struct snd_djm_device snd_djm_devices[] = { + [SND_DJM_250MK2_IDX] = SND_DJM_DEVICE(250mk2), + [SND_DJM_750_IDX] = SND_DJM_DEVICE(750), + [SND_DJM_850_IDX] = SND_DJM_DEVICE(850), + [SND_DJM_900NXS2_IDX] = SND_DJM_DEVICE(900nxs2), + [SND_DJM_750MK2_IDX] = SND_DJM_DEVICE(750mk2), + [SND_DJM_450_IDX] = SND_DJM_DEVICE(450), +}; + + +static int snd_djm_controls_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *info) +{ + unsigned long private_value = kctl->private_value; + u8 device_idx = (private_value & SND_DJM_DEVICE_MASK) >> SND_DJM_DEVICE_SHIFT; + u8 ctl_idx = (private_value & SND_DJM_GROUP_MASK) >> SND_DJM_GROUP_SHIFT; + const struct snd_djm_device *device = &snd_djm_devices[device_idx]; + const char *name; + const struct snd_djm_ctl *ctl; + size_t noptions; + + if (ctl_idx >= device->ncontrols) + return -EINVAL; + + ctl = &device->controls[ctl_idx]; + noptions = ctl->noptions; + if (info->value.enumerated.item >= noptions) + info->value.enumerated.item = noptions - 1; + + name = snd_djm_get_label(device_idx, + ctl->options[info->value.enumerated.item], + ctl->wIndex); + if (!name) + return -EINVAL; + + strscpy(info->value.enumerated.name, name, sizeof(info->value.enumerated.name)); + info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + info->count = 1; + info->value.enumerated.items = noptions; + return 0; +} + +static int snd_djm_controls_update(struct usb_mixer_interface *mixer, + u8 device_idx, u8 group, u16 value) +{ + int err; + const struct snd_djm_device *device = &snd_djm_devices[device_idx]; + + if ((group >= device->ncontrols) || value >= device->controls[group].noptions) + return -EINVAL; + + err = snd_usb_lock_shutdown(mixer->chip); + if (err) + return err; + + err = snd_usb_ctl_msg( + mixer->chip->dev, usb_sndctrlpipe(mixer->chip->dev, 0), + USB_REQ_SET_FEATURE, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + device->controls[group].options[value], + device->controls[group].wIndex, + NULL, 0); + + snd_usb_unlock_shutdown(mixer->chip); + return err; +} + +static int snd_djm_controls_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *elem) +{ + elem->value.enumerated.item[0] = kctl->private_value & SND_DJM_VALUE_MASK; + return 0; +} + +static int snd_djm_controls_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *elem) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + struct usb_mixer_interface *mixer = list->mixer; + unsigned long private_value = kctl->private_value; + + u8 device = (private_value & SND_DJM_DEVICE_MASK) >> SND_DJM_DEVICE_SHIFT; + u8 group = (private_value & SND_DJM_GROUP_MASK) >> SND_DJM_GROUP_SHIFT; + u16 value = elem->value.enumerated.item[0]; + + kctl->private_value = (((unsigned long)device << SND_DJM_DEVICE_SHIFT) | + (group << SND_DJM_GROUP_SHIFT) | + value); + + return snd_djm_controls_update(mixer, device, group, value); +} + +static int snd_djm_controls_resume(struct usb_mixer_elem_list *list) +{ + unsigned long private_value = list->kctl->private_value; + u8 device = (private_value & SND_DJM_DEVICE_MASK) >> SND_DJM_DEVICE_SHIFT; + u8 group = (private_value & SND_DJM_GROUP_MASK) >> SND_DJM_GROUP_SHIFT; + u16 value = (private_value & SND_DJM_VALUE_MASK); + + return snd_djm_controls_update(list->mixer, device, group, value); +} + +static int snd_djm_controls_create(struct usb_mixer_interface *mixer, + const u8 device_idx) +{ + int err, i; + u16 value; + + const struct snd_djm_device *device = &snd_djm_devices[device_idx]; + + struct snd_kcontrol_new knew = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .index = 0, + .info = snd_djm_controls_info, + .get = snd_djm_controls_get, + .put = snd_djm_controls_put + }; + + for (i = 0; i < device->ncontrols; i++) { + value = device->controls[i].default_value; + knew.name = device->controls[i].name; + knew.private_value = ( + ((unsigned long)device_idx << SND_DJM_DEVICE_SHIFT) | + (i << SND_DJM_GROUP_SHIFT) | + value); + err = snd_djm_controls_update(mixer, device_idx, i, value); + if (err) + return err; + err = add_single_ctl_with_resume(mixer, 0, snd_djm_controls_resume, + &knew, NULL); + if (err) + return err; + } + return 0; +} + +int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) +{ + int err = 0; + + err = snd_usb_soundblaster_remote_init(mixer); + if (err < 0) + return err; + + switch (mixer->chip->usb_id) { + /* Tascam US-16x08 */ + case USB_ID(0x0644, 0x8047): + err = snd_us16x08_controls_create(mixer); + break; + case USB_ID(0x041e, 0x3020): + case USB_ID(0x041e, 0x3040): + case USB_ID(0x041e, 0x3042): + case USB_ID(0x041e, 0x30df): + case USB_ID(0x041e, 0x3048): + err = snd_audigy2nx_controls_create(mixer); + if (err < 0) + break; + snd_card_ro_proc_new(mixer->chip->card, "audigy2nx", + mixer, snd_audigy2nx_proc_read); + break; + + /* EMU0204 */ + case USB_ID(0x041e, 0x3f19): + err = snd_emu0204_controls_create(mixer); + break; + + case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ + case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C400 */ + err = snd_c400_create_mixer(mixer); + break; + + case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */ + case USB_ID(0x0763, 0x2081): /* M-Audio Fast Track Ultra 8R */ + err = snd_ftu_create_mixer(mixer); + break; + + case USB_ID(0x0b05, 0x1739): /* ASUS Xonar U1 */ + case USB_ID(0x0b05, 0x1743): /* ASUS Xonar U1 (2) */ + case USB_ID(0x0b05, 0x17a0): /* ASUS Xonar U3 */ + err = snd_xonar_u1_controls_create(mixer); + break; + + case USB_ID(0x0d8c, 0x0103): /* Audio Advantage Micro II */ + err = snd_microii_controls_create(mixer); + break; + + case USB_ID(0x0dba, 0x1000): /* Digidesign Mbox 1 */ + err = snd_mbox1_controls_create(mixer); + break; + + case USB_ID(0x17cc, 0x1011): /* Traktor Audio 6 */ + err = snd_nativeinstruments_create_mixer(mixer, + snd_nativeinstruments_ta6_mixers, + ARRAY_SIZE(snd_nativeinstruments_ta6_mixers)); + break; + + case USB_ID(0x17cc, 0x1021): /* Traktor Audio 10 */ + err = snd_nativeinstruments_create_mixer(mixer, + snd_nativeinstruments_ta10_mixers, + ARRAY_SIZE(snd_nativeinstruments_ta10_mixers)); + break; + + case USB_ID(0x200c, 0x1018): /* Electrix Ebox-44 */ + /* detection is disabled in mixer_maps.c */ + err = snd_create_std_mono_table(mixer, ebox44_table); + break; + + case USB_ID(0x1235, 0x8012): /* Focusrite Scarlett 6i6 */ + case USB_ID(0x1235, 0x8002): /* Focusrite Scarlett 8i6 */ + case USB_ID(0x1235, 0x8004): /* Focusrite Scarlett 18i6 */ + case USB_ID(0x1235, 0x8014): /* Focusrite Scarlett 18i8 */ + case USB_ID(0x1235, 0x800c): /* Focusrite Scarlett 18i20 */ + err = snd_scarlett_controls_create(mixer); + break; + + case USB_ID(0x1235, 0x8203): /* Focusrite Scarlett 6i6 2nd Gen */ + case USB_ID(0x1235, 0x8204): /* Focusrite Scarlett 18i8 2nd Gen */ + case USB_ID(0x1235, 0x8201): /* Focusrite Scarlett 18i20 2nd Gen */ + case USB_ID(0x1235, 0x8211): /* Focusrite Scarlett Solo 3rd Gen */ + case USB_ID(0x1235, 0x8210): /* Focusrite Scarlett 2i2 3rd Gen */ + case USB_ID(0x1235, 0x8212): /* Focusrite Scarlett 4i4 3rd Gen */ + case USB_ID(0x1235, 0x8213): /* Focusrite Scarlett 8i6 3rd Gen */ + case USB_ID(0x1235, 0x8214): /* Focusrite Scarlett 18i8 3rd Gen */ + case USB_ID(0x1235, 0x8215): /* Focusrite Scarlett 18i20 3rd Gen */ + case USB_ID(0x1235, 0x820c): /* Focusrite Clarett+ 8Pre */ + err = snd_scarlett_gen2_init(mixer); + break; + + case USB_ID(0x041e, 0x323b): /* Creative Sound Blaster E1 */ + err = snd_soundblaster_e1_switch_create(mixer); + break; + case USB_ID(0x0bda, 0x4014): /* Dell WD15 dock */ + err = dell_dock_mixer_create(mixer); + if (err < 0) + break; + err = dell_dock_mixer_init(mixer); + break; + + case USB_ID(0x2a39, 0x3fd2): /* RME ADI-2 Pro */ + case USB_ID(0x2a39, 0x3fd3): /* RME ADI-2 DAC */ + case USB_ID(0x2a39, 0x3fd4): /* RME */ + err = snd_rme_controls_create(mixer); + break; + + case USB_ID(0x194f, 0x010c): /* Presonus Studio 1810c */ + err = snd_sc1810_init_mixer(mixer); + break; + case USB_ID(0x2a39, 0x3fb0): /* RME Babyface Pro FS */ + err = snd_bbfpro_controls_create(mixer); + break; + case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */ + err = snd_djm_controls_create(mixer, SND_DJM_250MK2_IDX); + break; + case USB_ID(0x2b73, 0x0013): /* Pioneer DJ DJM-450 */ + err = snd_djm_controls_create(mixer, SND_DJM_450_IDX); + break; + case USB_ID(0x08e4, 0x017f): /* Pioneer DJ DJM-750 */ + err = snd_djm_controls_create(mixer, SND_DJM_750_IDX); + break; + case USB_ID(0x2b73, 0x001b): /* Pioneer DJ DJM-750MK2 */ + err = snd_djm_controls_create(mixer, SND_DJM_750MK2_IDX); + break; + case USB_ID(0x08e4, 0x0163): /* Pioneer DJ DJM-850 */ + err = snd_djm_controls_create(mixer, SND_DJM_850_IDX); + break; + case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */ + err = snd_djm_controls_create(mixer, SND_DJM_900NXS2_IDX); + break; + } + + return err; +} + +void snd_usb_mixer_resume_quirk(struct usb_mixer_interface *mixer) +{ + switch (mixer->chip->usb_id) { + case USB_ID(0x0bda, 0x4014): /* Dell WD15 dock */ + dell_dock_mixer_init(mixer); + break; + } +} + +void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer, + int unitid) +{ + if (!mixer->rc_cfg) + return; + /* unit ids specific to Extigy/Audigy 2 NX: */ + switch (unitid) { + case 0: /* remote control */ + mixer->rc_urb->dev = mixer->chip->dev; + usb_submit_urb(mixer->rc_urb, GFP_ATOMIC); + break; + case 4: /* digital in jack */ + case 7: /* line in jacks */ + case 19: /* speaker out jacks */ + case 20: /* headphones out jack */ + break; + /* live24ext: 4 = line-in jack */ + case 3: /* hp-out jack (may actuate Mute) */ + if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) || + mixer->chip->usb_id == USB_ID(0x041e, 0x3048)) + snd_usb_mixer_notify_id(mixer, mixer->rc_cfg->mute_mixer_id); + break; + default: + usb_audio_dbg(mixer->chip, "memory change in unknown unit %d\n", unitid); + break; + } +} + +static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer, + struct usb_mixer_elem_info *cval, + struct snd_kcontrol *kctl) +{ + /* Approximation using 10 ranges based on output measurement on hw v1.2. + * This seems close to the cubic mapping e.g. alsamixer uses. */ + static const DECLARE_TLV_DB_RANGE(scale, + 0, 1, TLV_DB_MINMAX_ITEM(-5300, -4970), + 2, 5, TLV_DB_MINMAX_ITEM(-4710, -4160), + 6, 7, TLV_DB_MINMAX_ITEM(-3884, -3710), + 8, 14, TLV_DB_MINMAX_ITEM(-3443, -2560), + 15, 16, TLV_DB_MINMAX_ITEM(-2475, -2324), + 17, 19, TLV_DB_MINMAX_ITEM(-2228, -2031), + 20, 26, TLV_DB_MINMAX_ITEM(-1910, -1393), + 27, 31, TLV_DB_MINMAX_ITEM(-1322, -1032), + 32, 40, TLV_DB_MINMAX_ITEM(-968, -490), + 41, 50, TLV_DB_MINMAX_ITEM(-441, 0), + ); + + if (cval->min == 0 && cval->max == 50) { + usb_audio_info(mixer->chip, "applying DragonFly dB scale quirk (0-50 variant)\n"); + kctl->tlv.p = scale; + kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ; + kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; + + } else if (cval->min == 0 && cval->max <= 1000) { + /* Some other clearly broken DragonFly variant. + * At least a 0..53 variant (hw v1.0) exists. + */ + usb_audio_info(mixer->chip, "ignoring too narrow dB range on a DragonFly device"); + kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK; + } +} + +void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer, + struct usb_mixer_elem_info *cval, int unitid, + struct snd_kcontrol *kctl) +{ + switch (mixer->chip->usb_id) { + case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */ + if (unitid == 7 && cval->control == UAC_FU_VOLUME) + snd_dragonfly_quirk_db_scale(mixer, cval, kctl); + break; + /* lowest playback value is muted on some devices */ + case USB_ID(0x0d8c, 0x000c): /* C-Media */ + case USB_ID(0x0d8c, 0x0014): /* C-Media */ + case USB_ID(0x19f7, 0x0003): /* RODE NT-USB */ + if (strstr(kctl->id.name, "Playback")) + cval->min_mute = 1; + break; + } +} + diff --git a/sound/usb/mixer_quirks.h b/sound/usb/mixer_quirks.h new file mode 100644 index 000000000..4ba01ba3f --- /dev/null +++ b/sound/usb/mixer_quirks.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef SND_USB_MIXER_QUIRKS_H +#define SND_USB_MIXER_QUIRKS_H + +int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer); + +void snd_emuusb_set_samplerate(struct snd_usb_audio *chip, + unsigned char samplerate_id); + +void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer, + int unitid); + +void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer, + struct usb_mixer_elem_info *cval, int unitid, + struct snd_kcontrol *kctl); + +void snd_usb_mixer_resume_quirk(struct usb_mixer_interface *mixer); + +#endif /* SND_USB_MIXER_QUIRKS_H */ + diff --git a/sound/usb/mixer_s1810c.c b/sound/usb/mixer_s1810c.c new file mode 100644 index 000000000..fac4bbc6b --- /dev/null +++ b/sound/usb/mixer_s1810c.c @@ -0,0 +1,595 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Presonus Studio 1810c driver for ALSA + * Copyright (C) 2019 Nick Kossifidis <mickflemm@gmail.com> + * + * Based on reverse engineering of the communication protocol + * between the windows driver / Univeral Control (UC) program + * and the device, through usbmon. + * + * For now this bypasses the mixer, with all channels split, + * so that the software can mix with greater flexibility. + * It also adds controls for the 4 buttons on the front of + * the device. + */ + +#include <linux/usb.h> +#include <linux/usb/audio-v2.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/control.h> + +#include "usbaudio.h" +#include "mixer.h" +#include "mixer_quirks.h" +#include "helper.h" +#include "mixer_s1810c.h" + +#define SC1810C_CMD_REQ 160 +#define SC1810C_CMD_REQTYPE \ + (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT) +#define SC1810C_CMD_F1 0x50617269 +#define SC1810C_CMD_F2 0x14 + +/* + * DISCLAIMER: These are just guesses based on the + * dumps I got. + * + * It seems like a selects between + * device (0), mixer (0x64) and output (0x65) + * + * For mixer (0x64): + * * b selects an input channel (see below). + * * c selects an output channel pair (see below). + * * d selects left (0) or right (1) of that pair. + * * e 0-> disconnect, 0x01000000-> connect, + * 0x0109-> used for stereo-linking channels, + * e is also used for setting volume levels + * in which case b is also set so I guess + * this way it is possible to set the volume + * level from the specified input to the + * specified output. + * + * IN Channels: + * 0 - 7 Mic/Inst/Line (Analog inputs) + * 8 - 9 S/PDIF + * 10 - 17 ADAT + * 18 - 35 DAW (Inputs from the host) + * + * OUT Channels (pairs): + * 0 -> Main out + * 1 -> Line1/2 + * 2 -> Line3/4 + * 3 -> S/PDIF + * 4 -> ADAT? + * + * For device (0): + * * b and c are not used, at least not on the + * dumps I got. + * * d sets the control id to be modified + * (see below). + * * e sets the setting for that control. + * (so for the switches I was interested + * in it's 0/1) + * + * For output (0x65): + * * b is the output channel (see above). + * * c is zero. + * * e I guess the same as with mixer except 0x0109 + * which I didn't see in my dumps. + * + * The two fixed fields have the same values for + * mixer and output but a different set for device. + */ +struct s1810c_ctl_packet { + u32 a; + u32 b; + u32 fixed1; + u32 fixed2; + u32 c; + u32 d; + u32 e; +}; + +#define SC1810C_CTL_LINE_SW 0 +#define SC1810C_CTL_MUTE_SW 1 +#define SC1810C_CTL_AB_SW 3 +#define SC1810C_CTL_48V_SW 4 + +#define SC1810C_SET_STATE_REQ 161 +#define SC1810C_SET_STATE_REQTYPE SC1810C_CMD_REQTYPE +#define SC1810C_SET_STATE_F1 0x64656D73 +#define SC1810C_SET_STATE_F2 0xF4 + +#define SC1810C_GET_STATE_REQ 162 +#define SC1810C_GET_STATE_REQTYPE \ + (USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN) +#define SC1810C_GET_STATE_F1 SC1810C_SET_STATE_F1 +#define SC1810C_GET_STATE_F2 SC1810C_SET_STATE_F2 + +#define SC1810C_STATE_F1_IDX 2 +#define SC1810C_STATE_F2_IDX 3 + +/* + * This packet includes mixer volumes and + * various other fields, it's an extended + * version of ctl_packet, with a and b + * being zero and different f1/f2. + */ +struct s1810c_state_packet { + u32 fields[63]; +}; + +#define SC1810C_STATE_48V_SW 58 +#define SC1810C_STATE_LINE_SW 59 +#define SC1810C_STATE_MUTE_SW 60 +#define SC1810C_STATE_AB_SW 62 + +struct s1810_mixer_state { + uint16_t seqnum; + struct mutex usb_mutex; + struct mutex data_mutex; +}; + +static int +snd_s1810c_send_ctl_packet(struct usb_device *dev, u32 a, + u32 b, u32 c, u32 d, u32 e) +{ + struct s1810c_ctl_packet pkt = { 0 }; + int ret = 0; + + pkt.fixed1 = SC1810C_CMD_F1; + pkt.fixed2 = SC1810C_CMD_F2; + + pkt.a = a; + pkt.b = b; + pkt.c = c; + pkt.d = d; + /* + * Value for settings 0/1 for this + * output channel is always 0 (probably because + * there is no ADAT output on 1810c) + */ + pkt.e = (c == 4) ? 0 : e; + + ret = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + SC1810C_CMD_REQ, + SC1810C_CMD_REQTYPE, 0, 0, &pkt, sizeof(pkt)); + if (ret < 0) { + dev_warn(&dev->dev, "could not send ctl packet\n"); + return ret; + } + return 0; +} + +/* + * When opening Universal Control the program periodically + * sends and receives state packets for syncinc state between + * the device and the host. + * + * Note that if we send only the request to get data back we'll + * get an error, we need to first send an empty state packet and + * then ask to receive a filled. Their seqnumbers must also match. + */ +static int +snd_sc1810c_get_status_field(struct usb_device *dev, + u32 *field, int field_idx, uint16_t *seqnum) +{ + struct s1810c_state_packet pkt_out = { { 0 } }; + struct s1810c_state_packet pkt_in = { { 0 } }; + int ret = 0; + + pkt_out.fields[SC1810C_STATE_F1_IDX] = SC1810C_SET_STATE_F1; + pkt_out.fields[SC1810C_STATE_F2_IDX] = SC1810C_SET_STATE_F2; + ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + SC1810C_SET_STATE_REQ, + SC1810C_SET_STATE_REQTYPE, + (*seqnum), 0, &pkt_out, sizeof(pkt_out)); + if (ret < 0) { + dev_warn(&dev->dev, "could not send state packet (%d)\n", ret); + return ret; + } + + ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + SC1810C_GET_STATE_REQ, + SC1810C_GET_STATE_REQTYPE, + (*seqnum), 0, &pkt_in, sizeof(pkt_in)); + if (ret < 0) { + dev_warn(&dev->dev, "could not get state field %u (%d)\n", + field_idx, ret); + return ret; + } + + (*field) = pkt_in.fields[field_idx]; + (*seqnum)++; + return 0; +} + +/* + * This is what I got when bypassing the mixer with + * all channels split. I'm not 100% sure of what's going + * on, I could probably clean this up based on my observations + * but I prefer to keep the same behavior as the windows driver. + */ +static int snd_s1810c_init_mixer_maps(struct snd_usb_audio *chip) +{ + u32 a, b, c, e, n, off; + struct usb_device *dev = chip->dev; + + /* Set initial volume levels ? */ + a = 0x64; + e = 0xbc; + for (n = 0; n < 2; n++) { + off = n * 18; + for (b = off; b < 18 + off; b++) { + /* This channel to all outputs ? */ + for (c = 0; c <= 8; c++) { + snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e); + snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e); + } + /* This channel to main output (again) */ + snd_s1810c_send_ctl_packet(dev, a, b, 0, 0, e); + snd_s1810c_send_ctl_packet(dev, a, b, 0, 1, e); + } + /* + * I noticed on UC that DAW channels have different + * initial volumes, so this makes sense. + */ + e = 0xb53bf0; + } + + /* Connect analog outputs ? */ + a = 0x65; + e = 0x01000000; + for (b = 1; b < 3; b++) { + snd_s1810c_send_ctl_packet(dev, a, b, 0, 0, e); + snd_s1810c_send_ctl_packet(dev, a, b, 0, 1, e); + } + snd_s1810c_send_ctl_packet(dev, a, 0, 0, 0, e); + snd_s1810c_send_ctl_packet(dev, a, 0, 0, 1, e); + + /* Set initial volume levels for S/PDIF mappings ? */ + a = 0x64; + e = 0xbc; + c = 3; + for (n = 0; n < 2; n++) { + off = n * 18; + for (b = off; b < 18 + off; b++) { + snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e); + snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e); + } + e = 0xb53bf0; + } + + /* Connect S/PDIF output ? */ + a = 0x65; + e = 0x01000000; + snd_s1810c_send_ctl_packet(dev, a, 3, 0, 0, e); + snd_s1810c_send_ctl_packet(dev, a, 3, 0, 1, e); + + /* Connect all outputs (again) ? */ + a = 0x65; + e = 0x01000000; + for (b = 0; b < 4; b++) { + snd_s1810c_send_ctl_packet(dev, a, b, 0, 0, e); + snd_s1810c_send_ctl_packet(dev, a, b, 0, 1, e); + } + + /* Basic routing to get sound out of the device */ + a = 0x64; + e = 0x01000000; + for (c = 0; c < 4; c++) { + for (b = 0; b < 36; b++) { + if ((c == 0 && b == 18) || /* DAW1/2 -> Main */ + (c == 1 && b == 20) || /* DAW3/4 -> Line3/4 */ + (c == 2 && b == 22) || /* DAW4/5 -> Line5/6 */ + (c == 3 && b == 24)) { /* DAW5/6 -> S/PDIF */ + /* Left */ + snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e); + snd_s1810c_send_ctl_packet(dev, a, b, c, 1, 0); + b++; + /* Right */ + snd_s1810c_send_ctl_packet(dev, a, b, c, 0, 0); + snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e); + } else { + /* Leave the rest disconnected */ + snd_s1810c_send_ctl_packet(dev, a, b, c, 0, 0); + snd_s1810c_send_ctl_packet(dev, a, b, c, 1, 0); + } + } + } + + /* Set initial volume levels for S/PDIF (again) ? */ + a = 0x64; + e = 0xbc; + c = 3; + for (n = 0; n < 2; n++) { + off = n * 18; + for (b = off; b < 18 + off; b++) { + snd_s1810c_send_ctl_packet(dev, a, b, c, 0, e); + snd_s1810c_send_ctl_packet(dev, a, b, c, 1, e); + } + e = 0xb53bf0; + } + + /* Connect S/PDIF outputs (again) ? */ + a = 0x65; + e = 0x01000000; + snd_s1810c_send_ctl_packet(dev, a, 3, 0, 0, e); + snd_s1810c_send_ctl_packet(dev, a, 3, 0, 1, e); + + /* Again ? */ + snd_s1810c_send_ctl_packet(dev, a, 3, 0, 0, e); + snd_s1810c_send_ctl_packet(dev, a, 3, 0, 1, e); + + return 0; +} + +/* + * Sync state with the device and retrieve the requested field, + * whose index is specified in (kctl->private_value & 0xFF), + * from the received fields array. + */ +static int +snd_s1810c_get_switch_state(struct usb_mixer_interface *mixer, + struct snd_kcontrol *kctl, u32 *state) +{ + struct snd_usb_audio *chip = mixer->chip; + struct s1810_mixer_state *private = mixer->private_data; + u32 field = 0; + u32 ctl_idx = (u32) (kctl->private_value & 0xFF); + int ret = 0; + + mutex_lock(&private->usb_mutex); + ret = snd_sc1810c_get_status_field(chip->dev, &field, + ctl_idx, &private->seqnum); + if (ret < 0) + goto unlock; + + *state = field; + unlock: + mutex_unlock(&private->usb_mutex); + return ret ? ret : 0; +} + +/* + * Send a control packet to the device for the control id + * specified in (kctl->private_value >> 8) with value + * specified in (kctl->private_value >> 16). + */ +static int +snd_s1810c_set_switch_state(struct usb_mixer_interface *mixer, + struct snd_kcontrol *kctl) +{ + struct snd_usb_audio *chip = mixer->chip; + struct s1810_mixer_state *private = mixer->private_data; + u32 pval = (u32) kctl->private_value; + u32 ctl_id = (pval >> 8) & 0xFF; + u32 ctl_val = (pval >> 16) & 0x1; + int ret = 0; + + mutex_lock(&private->usb_mutex); + ret = snd_s1810c_send_ctl_packet(chip->dev, 0, 0, 0, ctl_id, ctl_val); + mutex_unlock(&private->usb_mutex); + return ret; +} + +/* Generic get/set/init functions for switch controls */ + +static int +snd_s1810c_switch_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ctl_elem) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + struct usb_mixer_interface *mixer = list->mixer; + struct s1810_mixer_state *private = mixer->private_data; + u32 pval = (u32) kctl->private_value; + u32 ctl_idx = pval & 0xFF; + u32 state = 0; + int ret = 0; + + mutex_lock(&private->data_mutex); + ret = snd_s1810c_get_switch_state(mixer, kctl, &state); + if (ret < 0) + goto unlock; + + switch (ctl_idx) { + case SC1810C_STATE_LINE_SW: + case SC1810C_STATE_AB_SW: + ctl_elem->value.enumerated.item[0] = (int)state; + break; + default: + ctl_elem->value.integer.value[0] = (long)state; + } + + unlock: + mutex_unlock(&private->data_mutex); + return (ret < 0) ? ret : 0; +} + +static int +snd_s1810c_switch_set(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ctl_elem) +{ + struct usb_mixer_elem_list *list = snd_kcontrol_chip(kctl); + struct usb_mixer_interface *mixer = list->mixer; + struct s1810_mixer_state *private = mixer->private_data; + u32 pval = (u32) kctl->private_value; + u32 ctl_idx = pval & 0xFF; + u32 curval = 0; + u32 newval = 0; + int ret = 0; + + mutex_lock(&private->data_mutex); + ret = snd_s1810c_get_switch_state(mixer, kctl, &curval); + if (ret < 0) + goto unlock; + + switch (ctl_idx) { + case SC1810C_STATE_LINE_SW: + case SC1810C_STATE_AB_SW: + newval = (u32) ctl_elem->value.enumerated.item[0]; + break; + default: + newval = (u32) ctl_elem->value.integer.value[0]; + } + + if (curval == newval) + goto unlock; + + kctl->private_value &= ~(0x1 << 16); + kctl->private_value |= (unsigned int)(newval & 0x1) << 16; + ret = snd_s1810c_set_switch_state(mixer, kctl); + + unlock: + mutex_unlock(&private->data_mutex); + return (ret < 0) ? 0 : 1; +} + +static int +snd_s1810c_switch_init(struct usb_mixer_interface *mixer, + const struct snd_kcontrol_new *new_kctl) +{ + struct snd_kcontrol *kctl; + struct usb_mixer_elem_info *elem; + + elem = kzalloc(sizeof(struct usb_mixer_elem_info), GFP_KERNEL); + if (!elem) + return -ENOMEM; + + elem->head.mixer = mixer; + elem->control = 0; + elem->head.id = 0; + elem->channels = 1; + + kctl = snd_ctl_new1(new_kctl, elem); + if (!kctl) { + kfree(elem); + return -ENOMEM; + } + kctl->private_free = snd_usb_mixer_elem_free; + + return snd_usb_mixer_add_control(&elem->head, kctl); +} + +static int +snd_s1810c_line_sw_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const texts[2] = { + "Preamp On (Mic/Inst)", + "Preamp Off (Line in)" + }; + + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); +} + +static const struct snd_kcontrol_new snd_s1810c_line_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Line 1/2 Source Type", + .info = snd_s1810c_line_sw_info, + .get = snd_s1810c_switch_get, + .put = snd_s1810c_switch_set, + .private_value = (SC1810C_STATE_LINE_SW | SC1810C_CTL_LINE_SW << 8) +}; + +static const struct snd_kcontrol_new snd_s1810c_mute_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Mute Main Out Switch", + .info = snd_ctl_boolean_mono_info, + .get = snd_s1810c_switch_get, + .put = snd_s1810c_switch_set, + .private_value = (SC1810C_STATE_MUTE_SW | SC1810C_CTL_MUTE_SW << 8) +}; + +static const struct snd_kcontrol_new snd_s1810c_48v_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "48V Phantom Power On Mic Inputs Switch", + .info = snd_ctl_boolean_mono_info, + .get = snd_s1810c_switch_get, + .put = snd_s1810c_switch_set, + .private_value = (SC1810C_STATE_48V_SW | SC1810C_CTL_48V_SW << 8) +}; + +static int +snd_s1810c_ab_sw_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const texts[2] = { + "1/2", + "3/4" + }; + + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts); +} + +static const struct snd_kcontrol_new snd_s1810c_ab_sw = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Headphone 1 Source Route", + .info = snd_s1810c_ab_sw_info, + .get = snd_s1810c_switch_get, + .put = snd_s1810c_switch_set, + .private_value = (SC1810C_STATE_AB_SW | SC1810C_CTL_AB_SW << 8) +}; + +static void snd_sc1810_mixer_state_free(struct usb_mixer_interface *mixer) +{ + struct s1810_mixer_state *private = mixer->private_data; + kfree(private); + mixer->private_data = NULL; +} + +/* Entry point, called from mixer_quirks.c */ +int snd_sc1810_init_mixer(struct usb_mixer_interface *mixer) +{ + struct s1810_mixer_state *private = NULL; + struct snd_usb_audio *chip = mixer->chip; + struct usb_device *dev = chip->dev; + int ret = 0; + + /* Run this only once */ + if (!list_empty(&chip->mixer_list)) + return 0; + + dev_info(&dev->dev, + "Presonus Studio 1810c, device_setup: %u\n", chip->setup); + if (chip->setup == 1) + dev_info(&dev->dev, "(8out/18in @ 48kHz)\n"); + else if (chip->setup == 2) + dev_info(&dev->dev, "(6out/8in @ 192kHz)\n"); + else + dev_info(&dev->dev, "(8out/14in @ 96kHz)\n"); + + ret = snd_s1810c_init_mixer_maps(chip); + if (ret < 0) + return ret; + + private = kzalloc(sizeof(struct s1810_mixer_state), GFP_KERNEL); + if (!private) + return -ENOMEM; + + mutex_init(&private->usb_mutex); + mutex_init(&private->data_mutex); + + mixer->private_data = private; + mixer->private_free = snd_sc1810_mixer_state_free; + + private->seqnum = 1; + + ret = snd_s1810c_switch_init(mixer, &snd_s1810c_line_sw); + if (ret < 0) + return ret; + + ret = snd_s1810c_switch_init(mixer, &snd_s1810c_mute_sw); + if (ret < 0) + return ret; + + ret = snd_s1810c_switch_init(mixer, &snd_s1810c_48v_sw); + if (ret < 0) + return ret; + + ret = snd_s1810c_switch_init(mixer, &snd_s1810c_ab_sw); + if (ret < 0) + return ret; + return ret; +} diff --git a/sound/usb/mixer_s1810c.h b/sound/usb/mixer_s1810c.h new file mode 100644 index 000000000..a79a3743c --- /dev/null +++ b/sound/usb/mixer_s1810c.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Presonus Studio 1810c driver for ALSA + * Copyright (C) 2019 Nick Kossifidis <mickflemm@gmail.com> + */ + +int snd_sc1810_init_mixer(struct usb_mixer_interface *mixer); diff --git a/sound/usb/mixer_scarlett.c b/sound/usb/mixer_scarlett.c new file mode 100644 index 000000000..0d6e4f15b --- /dev/null +++ b/sound/usb/mixer_scarlett.c @@ -0,0 +1,1011 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Scarlett Driver for ALSA + * + * Copyright (c) 2013 by Tobias Hoffmann + * Copyright (c) 2013 by Robin Gareus <robin at gareus.org> + * Copyright (c) 2002 by Takashi Iwai <tiwai at suse.de> + * Copyright (c) 2014 by Chris J Arges <chris.j.arges at canonical.com> + * + * Many codes borrowed from audio.c by + * Alan Cox (alan at lxorguk.ukuu.org.uk) + * Thomas Sailer (sailer at ife.ee.ethz.ch) + * + * Code cleanup: + * David Henningsson <david.henningsson at canonical.com> + */ + +/* + * Rewritten and extended to support more models, e.g. Scarlett 18i8. + * + * Auto-detection via UAC2 is not feasible to properly discover the vast + * majority of features. It's related to both Linux/ALSA's UAC2 as well as + * Focusrite's implementation of it. Eventually quirks may be sufficient but + * right now it's a major headache to work around these things. + * + * NB. Neither the OSX nor the win driver provided by Focusrite performs + * discovery, they seem to operate the same as this driver. + */ + +/* Mixer Interface for the Focusrite Scarlett 18i6 audio interface. + * + * The protocol was reverse engineered by looking at communication between + * Scarlett MixControl (v 1.2.128.0) and the Focusrite(R) Scarlett 18i6 + * (firmware v305) using wireshark and usbmon in January 2013. + * Extended in July 2013. + * + * this mixer gives complete access to all features of the device: + * - change Impedance of inputs (Line-in, Mic / Instrument, Hi-Z) + * - select clock source + * - dynamic input to mixer-matrix assignment + * - 18 x 6 mixer-matrix gain stages + * - bus routing & volume control + * - automatic re-initialization on connect if device was power-cycled + * + * USB URB commands overview (bRequest = 0x01 = UAC2_CS_CUR) + * wIndex + * 0x01 Analog Input line/instrument impedance switch, wValue=0x0901 + + * channel, data=Line/Inst (2bytes) + * pad (-10dB) switch, wValue=0x0b01 + channel, data=Off/On (2bytes) + * ?? wValue=0x0803/04, ?? (2bytes) + * 0x0a Master Volume, wValue=0x0200+bus[0:all + only 1..4?] data(2bytes) + * Bus Mute/Unmute wValue=0x0100+bus[0:all + only 1..4?], data(2bytes) + * 0x28 Clock source, wValue=0x0100, data={1:int,2:spdif,3:adat} (1byte) + * 0x29 Set Sample-rate, wValue=0x0100, data=sample-rate(4bytes) + * 0x32 Mixer mux, wValue=0x0600 + mixer-channel, data=input-to-connect(2bytes) + * 0x33 Output mux, wValue=bus, data=input-to-connect(2bytes) + * 0x34 Capture mux, wValue=0...18, data=input-to-connect(2bytes) + * 0x3c Matrix Mixer gains, wValue=mixer-node data=gain(2bytes) + * ?? [sometimes](4bytes, e.g 0x000003be 0x000003bf ...03ff) + * + * USB reads: (i.e. actually issued by original software) + * 0x01 wValue=0x0901+channel (1byte!!), wValue=0x0b01+channed (1byte!!) + * 0x29 wValue=0x0100 sample-rate(4bytes) + * wValue=0x0200 ?? 1byte (only once) + * 0x2a wValue=0x0100 ?? 4bytes, sample-rate2 ?? + * + * USB reads with bRequest = 0x03 = UAC2_CS_MEM + * 0x3c wValue=0x0002 1byte: sync status (locked=1) + * wValue=0x0000 18*2byte: peak meter (inputs) + * wValue=0x0001 8(?)*2byte: peak meter (mix) + * wValue=0x0003 6*2byte: peak meter (pcm/daw) + * + * USB write with bRequest = 0x03 + * 0x3c Save settings to hardware: wValue=0x005a, data=0xa5 + * + * + * <ditaa> + * /--------------\ 18chn 6chn /--------------\ + * | Hardware in +--+-------\ /------+--+ ALSA PCM out | + * \--------------/ | | | | \--------------/ + * | | | | + * | v v | + * | +---------------+ | + * | \ Matrix Mux / | + * | +-----+-----+ | + * | | | + * | | 18chn | + * | v | + * | +-----------+ | + * | | Mixer | | + * | | Matrix | | + * | | | | + * | | 18x6 Gain | | + * | | stages | | + * | +-----+-----+ | + * | | | + * | | | + * | 18chn | 6chn | 6chn + * v v v + * ========================= + * +---------------+ +--—------------+ + * \ Output Mux / \ Capture Mux / + * +-----+-----+ +-----+-----+ + * | | + * | 6chn | + * v | + * +-------------+ | + * | Master Gain | | + * +------+------+ | + * | | + * | 6chn | 18chn + * | (3 stereo pairs) | + * /--------------\ | | /--------------\ + * | Hardware out |<--/ \-->| ALSA PCM in | + * \--------------/ \--------------/ + * </ditaa> + * + */ + +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio-v2.h> + +#include <sound/core.h> +#include <sound/control.h> +#include <sound/tlv.h> + +#include "usbaudio.h" +#include "mixer.h" +#include "helper.h" +#include "power.h" + +#include "mixer_scarlett.h" + +/* some gui mixers can't handle negative ctl values */ +#define SND_SCARLETT_LEVEL_BIAS 128 +#define SND_SCARLETT_MATRIX_IN_MAX 18 +#define SND_SCARLETT_CONTROLS_MAX 10 +#define SND_SCARLETT_OFFSETS_MAX 5 + +enum { + SCARLETT_OUTPUTS, + SCARLETT_SWITCH_IMPEDANCE, + SCARLETT_SWITCH_PAD, + SCARLETT_SWITCH_GAIN, +}; + +enum { + SCARLETT_OFFSET_PCM = 0, + SCARLETT_OFFSET_ANALOG = 1, + SCARLETT_OFFSET_SPDIF = 2, + SCARLETT_OFFSET_ADAT = 3, + SCARLETT_OFFSET_MIX = 4, +}; + +struct scarlett_mixer_elem_enum_info { + int start; + int len; + int offsets[SND_SCARLETT_OFFSETS_MAX]; + char const * const *names; +}; + +struct scarlett_mixer_control { + unsigned char num; + unsigned char type; + const char *name; +}; + +struct scarlett_device_info { + int matrix_in; + int matrix_out; + int input_len; + int output_len; + + struct scarlett_mixer_elem_enum_info opt_master; + struct scarlett_mixer_elem_enum_info opt_matrix; + + /* initial values for matrix mux */ + int matrix_mux_init[SND_SCARLETT_MATRIX_IN_MAX]; + + int num_controls; /* number of items in controls */ + const struct scarlett_mixer_control controls[SND_SCARLETT_CONTROLS_MAX]; +}; + +/********************** Enum Strings *************************/ + +static const struct scarlett_mixer_elem_enum_info opt_pad = { + .start = 0, + .len = 2, + .offsets = {}, + .names = (char const * const []){ + "0dB", "-10dB" + } +}; + +static const struct scarlett_mixer_elem_enum_info opt_gain = { + .start = 0, + .len = 2, + .offsets = {}, + .names = (char const * const []){ + "Lo", "Hi" + } +}; + +static const struct scarlett_mixer_elem_enum_info opt_impedance = { + .start = 0, + .len = 2, + .offsets = {}, + .names = (char const * const []){ + "Line", "Hi-Z" + } +}; + +static const struct scarlett_mixer_elem_enum_info opt_clock = { + .start = 1, + .len = 3, + .offsets = {}, + .names = (char const * const []){ + "Internal", "SPDIF", "ADAT" + } +}; + +static const struct scarlett_mixer_elem_enum_info opt_sync = { + .start = 0, + .len = 2, + .offsets = {}, + .names = (char const * const []){ + "No Lock", "Locked" + } +}; + +static int scarlett_ctl_switch_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->count = elem->channels; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + return 0; +} + +static int scarlett_ctl_switch_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + int i, err, val; + + for (i = 0; i < elem->channels; i++) { + err = snd_usb_get_cur_mix_value(elem, i, i, &val); + if (err < 0) + return err; + + val = !val; /* invert mute logic for mixer */ + ucontrol->value.integer.value[i] = val; + } + + return 0; +} + +static int scarlett_ctl_switch_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + int i, changed = 0; + int err, oval, val; + + for (i = 0; i < elem->channels; i++) { + err = snd_usb_get_cur_mix_value(elem, i, i, &oval); + if (err < 0) + return err; + + val = ucontrol->value.integer.value[i]; + val = !val; + if (oval != val) { + err = snd_usb_set_cur_mix_value(elem, i, i, val); + if (err < 0) + return err; + + changed = 1; + } + } + + return changed; +} + +static int scarlett_ctl_resume(struct usb_mixer_elem_list *list) +{ + struct usb_mixer_elem_info *elem = mixer_elem_list_to_info(list); + int i; + + for (i = 0; i < elem->channels; i++) + if (elem->cached & (1 << i)) + snd_usb_set_cur_mix_value(elem, i, i, + elem->cache_val[i]); + return 0; +} + +static int scarlett_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = elem->channels; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = (int)kctl->private_value + + SND_SCARLETT_LEVEL_BIAS; + uinfo->value.integer.step = 1; + return 0; +} + +static int scarlett_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + int i, err, val; + + for (i = 0; i < elem->channels; i++) { + err = snd_usb_get_cur_mix_value(elem, i, i, &val); + if (err < 0) + return err; + + val = clamp(val / 256, -128, (int)kctl->private_value) + + SND_SCARLETT_LEVEL_BIAS; + ucontrol->value.integer.value[i] = val; + } + + return 0; +} + +static int scarlett_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + int i, changed = 0; + int err, oval, val; + + for (i = 0; i < elem->channels; i++) { + err = snd_usb_get_cur_mix_value(elem, i, i, &oval); + if (err < 0) + return err; + + val = ucontrol->value.integer.value[i] - + SND_SCARLETT_LEVEL_BIAS; + val = val * 256; + if (oval != val) { + err = snd_usb_set_cur_mix_value(elem, i, i, val); + if (err < 0) + return err; + + changed = 1; + } + } + + return changed; +} + +static void scarlett_generate_name(int i, char *dst, int offsets[]) +{ + if (i > offsets[SCARLETT_OFFSET_MIX]) + sprintf(dst, "Mix %c", + 'A'+(i - offsets[SCARLETT_OFFSET_MIX] - 1)); + else if (i > offsets[SCARLETT_OFFSET_ADAT]) + sprintf(dst, "ADAT %d", i - offsets[SCARLETT_OFFSET_ADAT]); + else if (i > offsets[SCARLETT_OFFSET_SPDIF]) + sprintf(dst, "SPDIF %d", i - offsets[SCARLETT_OFFSET_SPDIF]); + else if (i > offsets[SCARLETT_OFFSET_ANALOG]) + sprintf(dst, "Analog %d", i - offsets[SCARLETT_OFFSET_ANALOG]); + else if (i > offsets[SCARLETT_OFFSET_PCM]) + sprintf(dst, "PCM %d", i - offsets[SCARLETT_OFFSET_PCM]); + else + sprintf(dst, "Off"); +} + +static int scarlett_ctl_enum_dynamic_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett_mixer_elem_enum_info *opt = elem->private_data; + unsigned int items = opt->len; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = elem->channels; + uinfo->value.enumerated.items = items; + + if (uinfo->value.enumerated.item >= items) + uinfo->value.enumerated.item = items - 1; + + /* generate name dynamically based on item number and offset info */ + scarlett_generate_name(uinfo->value.enumerated.item, + uinfo->value.enumerated.name, + opt->offsets); + + return 0; +} + +static int scarlett_ctl_enum_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett_mixer_elem_enum_info *opt = elem->private_data; + + return snd_ctl_enum_info(uinfo, elem->channels, opt->len, + (const char * const *)opt->names); +} + +static int scarlett_ctl_enum_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett_mixer_elem_enum_info *opt = elem->private_data; + int err, val; + + err = snd_usb_get_cur_mix_value(elem, 0, 0, &val); + if (err < 0) + return err; + + val = clamp(val - opt->start, 0, opt->len-1); + + ucontrol->value.enumerated.item[0] = val; + + return 0; +} + +static int scarlett_ctl_enum_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett_mixer_elem_enum_info *opt = elem->private_data; + int err, oval, val; + + err = snd_usb_get_cur_mix_value(elem, 0, 0, &oval); + if (err < 0) + return err; + + val = ucontrol->value.integer.value[0]; + val = val + opt->start; + if (val != oval) { + snd_usb_set_cur_mix_value(elem, 0, 0, val); + return 1; + } + return 0; +} + +static int scarlett_ctl_enum_resume(struct usb_mixer_elem_list *list) +{ + struct usb_mixer_elem_info *elem = mixer_elem_list_to_info(list); + + if (elem->cached) + snd_usb_set_cur_mix_value(elem, 0, 0, *elem->cache_val); + return 0; +} + +static int scarlett_ctl_meter_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + unsigned char buf[2 * MAX_CHANNELS] = {0, }; + int wValue = (elem->control << 8) | elem->idx_off; + int idx = snd_usb_ctrl_intf(chip) | (elem->head.id << 8); + int err; + + err = snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), + UAC2_CS_MEM, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | + USB_DIR_IN, wValue, idx, buf, elem->channels); + if (err < 0) + return err; + + ucontrol->value.enumerated.item[0] = clamp((int)buf[0], 0, 1); + return 0; +} + +static const struct snd_kcontrol_new usb_scarlett_ctl_switch = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett_ctl_switch_info, + .get = scarlett_ctl_switch_get, + .put = scarlett_ctl_switch_put, +}; + +static const DECLARE_TLV_DB_SCALE(db_scale_scarlett_gain, -12800, 100, 0); + +static const struct snd_kcontrol_new usb_scarlett_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .name = "", + .info = scarlett_ctl_info, + .get = scarlett_ctl_get, + .put = scarlett_ctl_put, + .private_value = 6, /* max value */ + .tlv = { .p = db_scale_scarlett_gain } +}; + +static const struct snd_kcontrol_new usb_scarlett_ctl_master = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .name = "", + .info = scarlett_ctl_info, + .get = scarlett_ctl_get, + .put = scarlett_ctl_put, + .private_value = 6, /* max value */ + .tlv = { .p = db_scale_scarlett_gain } +}; + +static const struct snd_kcontrol_new usb_scarlett_ctl_enum = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett_ctl_enum_info, + .get = scarlett_ctl_enum_get, + .put = scarlett_ctl_enum_put, +}; + +static const struct snd_kcontrol_new usb_scarlett_ctl_dynamic_enum = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett_ctl_enum_dynamic_info, + .get = scarlett_ctl_enum_get, + .put = scarlett_ctl_enum_put, +}; + +static const struct snd_kcontrol_new usb_scarlett_ctl_sync = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .name = "", + .info = scarlett_ctl_enum_info, + .get = scarlett_ctl_meter_get, +}; + +static int add_new_ctl(struct usb_mixer_interface *mixer, + const struct snd_kcontrol_new *ncontrol, + usb_mixer_elem_resume_func_t resume, + int index, int offset, int num, + int val_type, int channels, const char *name, + const struct scarlett_mixer_elem_enum_info *opt, + struct usb_mixer_elem_info **elem_ret +) +{ + struct snd_kcontrol *kctl; + struct usb_mixer_elem_info *elem; + int err; + + elem = kzalloc(sizeof(*elem), GFP_KERNEL); + if (!elem) + return -ENOMEM; + + elem->head.mixer = mixer; + elem->head.resume = resume; + elem->control = offset; + elem->idx_off = num; + elem->head.id = index; + elem->val_type = val_type; + + elem->channels = channels; + + /* add scarlett_mixer_elem_enum_info struct */ + elem->private_data = (void *)opt; + + kctl = snd_ctl_new1(ncontrol, elem); + if (!kctl) { + kfree(elem); + return -ENOMEM; + } + kctl->private_free = snd_usb_mixer_elem_free; + + strscpy(kctl->id.name, name, sizeof(kctl->id.name)); + + err = snd_usb_mixer_add_control(&elem->head, kctl); + if (err < 0) + return err; + + if (elem_ret) + *elem_ret = elem; + + return 0; +} + +static int add_output_ctls(struct usb_mixer_interface *mixer, + int index, const char *name, + const struct scarlett_device_info *info) +{ + int err; + char mx[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + struct usb_mixer_elem_info *elem; + + /* Add mute switch */ + snprintf(mx, sizeof(mx), "Master %d (%s) Playback Switch", + index + 1, name); + err = add_new_ctl(mixer, &usb_scarlett_ctl_switch, + scarlett_ctl_resume, 0x0a, 0x01, + 2*index+1, USB_MIXER_S16, 2, mx, NULL, &elem); + if (err < 0) + return err; + + /* Add volume control and initialize to 0 */ + snprintf(mx, sizeof(mx), "Master %d (%s) Playback Volume", + index + 1, name); + err = add_new_ctl(mixer, &usb_scarlett_ctl_master, + scarlett_ctl_resume, 0x0a, 0x02, + 2*index+1, USB_MIXER_S16, 2, mx, NULL, &elem); + if (err < 0) + return err; + + /* Add L channel source playback enumeration */ + snprintf(mx, sizeof(mx), "Master %dL (%s) Source Playback Enum", + index + 1, name); + err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum, + scarlett_ctl_enum_resume, 0x33, 0x00, + 2*index, USB_MIXER_S16, 1, mx, &info->opt_master, + &elem); + if (err < 0) + return err; + + /* Add R channel source playback enumeration */ + snprintf(mx, sizeof(mx), "Master %dR (%s) Source Playback Enum", + index + 1, name); + err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum, + scarlett_ctl_enum_resume, 0x33, 0x00, + 2*index+1, USB_MIXER_S16, 1, mx, &info->opt_master, + &elem); + if (err < 0) + return err; + + return 0; +} + +/********************** device-specific config *************************/ + +/* untested... */ +static const struct scarlett_device_info s6i6_info = { + .matrix_in = 18, + .matrix_out = 8, + .input_len = 6, + .output_len = 6, + + .opt_master = { + .start = -1, + .len = 27, + .offsets = {0, 12, 16, 18, 18}, + .names = NULL + }, + + .opt_matrix = { + .start = -1, + .len = 19, + .offsets = {0, 12, 16, 18, 18}, + .names = NULL + }, + + .num_controls = 9, + .controls = { + { .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" }, + { .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone" }, + { .num = 2, .type = SCARLETT_OUTPUTS, .name = "SPDIF" }, + { .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 1, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 3, .type = SCARLETT_SWITCH_GAIN, .name = NULL}, + { .num = 4, .type = SCARLETT_SWITCH_GAIN, .name = NULL}, + }, + + .matrix_mux_init = { + 12, 13, 14, 15, /* Analog -> 1..4 */ + 16, 17, /* SPDIF -> 5,6 */ + 0, 1, 2, 3, 4, 5, 6, 7, /* PCM[1..12] -> 7..18 */ + 8, 9, 10, 11 + } +}; + +/* untested... */ +static const struct scarlett_device_info s8i6_info = { + .matrix_in = 18, + .matrix_out = 6, + .input_len = 8, + .output_len = 6, + + .opt_master = { + .start = -1, + .len = 25, + .offsets = {0, 12, 16, 18, 18}, + .names = NULL + }, + + .opt_matrix = { + .start = -1, + .len = 19, + .offsets = {0, 12, 16, 18, 18}, + .names = NULL + }, + + .num_controls = 7, + .controls = { + { .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" }, + { .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone" }, + { .num = 2, .type = SCARLETT_OUTPUTS, .name = "SPDIF" }, + { .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 3, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 4, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + }, + + .matrix_mux_init = { + 12, 13, 14, 15, /* Analog -> 1..4 */ + 16, 17, /* SPDIF -> 5,6 */ + 0, 1, 2, 3, 4, 5, 6, 7, /* PCM[1..12] -> 7..18 */ + 8, 9, 10, 11 + } +}; + +static const struct scarlett_device_info s18i6_info = { + .matrix_in = 18, + .matrix_out = 6, + .input_len = 18, + .output_len = 6, + + .opt_master = { + .start = -1, + .len = 31, + .offsets = {0, 6, 14, 16, 24}, + .names = NULL, + }, + + .opt_matrix = { + .start = -1, + .len = 25, + .offsets = {0, 6, 14, 16, 24}, + .names = NULL, + }, + + .num_controls = 5, + .controls = { + { .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" }, + { .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone" }, + { .num = 2, .type = SCARLETT_OUTPUTS, .name = "SPDIF" }, + { .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + }, + + .matrix_mux_init = { + 6, 7, 8, 9, 10, 11, 12, 13, /* Analog -> 1..8 */ + 16, 17, 18, 19, 20, 21, /* ADAT[1..6] -> 9..14 */ + 14, 15, /* SPDIF -> 15,16 */ + 0, 1 /* PCM[1,2] -> 17,18 */ + } +}; + +static const struct scarlett_device_info s18i8_info = { + .matrix_in = 18, + .matrix_out = 8, + .input_len = 18, + .output_len = 8, + + .opt_master = { + .start = -1, + .len = 35, + .offsets = {0, 8, 16, 18, 26}, + .names = NULL + }, + + .opt_matrix = { + .start = -1, + .len = 27, + .offsets = {0, 8, 16, 18, 26}, + .names = NULL + }, + + .num_controls = 10, + .controls = { + { .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" }, + { .num = 1, .type = SCARLETT_OUTPUTS, .name = "Headphone 1" }, + { .num = 2, .type = SCARLETT_OUTPUTS, .name = "Headphone 2" }, + { .num = 3, .type = SCARLETT_OUTPUTS, .name = "SPDIF" }, + { .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 1, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 3, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 4, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + }, + + .matrix_mux_init = { + 8, 9, 10, 11, 12, 13, 14, 15, /* Analog -> 1..8 */ + 18, 19, 20, 21, 22, 23, /* ADAT[1..6] -> 9..14 */ + 16, 17, /* SPDIF -> 15,16 */ + 0, 1 /* PCM[1,2] -> 17,18 */ + } +}; + +static const struct scarlett_device_info s18i20_info = { + .matrix_in = 18, + .matrix_out = 8, + .input_len = 18, + .output_len = 20, + + .opt_master = { + .start = -1, + .len = 47, + .offsets = {0, 20, 28, 30, 38}, + .names = NULL + }, + + .opt_matrix = { + .start = -1, + .len = 39, + .offsets = {0, 20, 28, 30, 38}, + .names = NULL + }, + + .num_controls = 10, + .controls = { + { .num = 0, .type = SCARLETT_OUTPUTS, .name = "Monitor" }, + { .num = 1, .type = SCARLETT_OUTPUTS, .name = "Line 3/4" }, + { .num = 2, .type = SCARLETT_OUTPUTS, .name = "Line 5/6" }, + { .num = 3, .type = SCARLETT_OUTPUTS, .name = "Line 7/8" }, + { .num = 4, .type = SCARLETT_OUTPUTS, .name = "Line 9/10" }, + { .num = 5, .type = SCARLETT_OUTPUTS, .name = "SPDIF" }, + { .num = 6, .type = SCARLETT_OUTPUTS, .name = "ADAT 1/2" }, + { .num = 7, .type = SCARLETT_OUTPUTS, .name = "ADAT 3/4" }, + { .num = 8, .type = SCARLETT_OUTPUTS, .name = "ADAT 5/6" }, + { .num = 9, .type = SCARLETT_OUTPUTS, .name = "ADAT 7/8" }, + /*{ .num = 1, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 1, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_IMPEDANCE, .name = NULL}, + { .num = 2, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 3, .type = SCARLETT_SWITCH_PAD, .name = NULL}, + { .num = 4, .type = SCARLETT_SWITCH_PAD, .name = NULL},*/ + }, + + .matrix_mux_init = { + 20, 21, 22, 23, 24, 25, 26, 27, /* Analog -> 1..8 */ + 30, 31, 32, 33, 34, 35, /* ADAT[1..6] -> 9..14 */ + 28, 29, /* SPDIF -> 15,16 */ + 0, 1 /* PCM[1,2] -> 17,18 */ + } +}; + + +static int scarlett_controls_create_generic(struct usb_mixer_interface *mixer, + const struct scarlett_device_info *info) +{ + int i, err; + char mx[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + const struct scarlett_mixer_control *ctl; + struct usb_mixer_elem_info *elem; + + /* create master switch and playback volume */ + err = add_new_ctl(mixer, &usb_scarlett_ctl_switch, + scarlett_ctl_resume, 0x0a, 0x01, 0, + USB_MIXER_S16, 1, "Master Playback Switch", NULL, + &elem); + if (err < 0) + return err; + + err = add_new_ctl(mixer, &usb_scarlett_ctl_master, + scarlett_ctl_resume, 0x0a, 0x02, 0, + USB_MIXER_S16, 1, "Master Playback Volume", NULL, + &elem); + if (err < 0) + return err; + + /* iterate through controls in info struct and create each one */ + for (i = 0; i < info->num_controls; i++) { + ctl = &info->controls[i]; + + switch (ctl->type) { + case SCARLETT_OUTPUTS: + err = add_output_ctls(mixer, ctl->num, ctl->name, info); + if (err < 0) + return err; + break; + case SCARLETT_SWITCH_IMPEDANCE: + sprintf(mx, "Input %d Impedance Switch", ctl->num); + err = add_new_ctl(mixer, &usb_scarlett_ctl_enum, + scarlett_ctl_enum_resume, 0x01, + 0x09, ctl->num, USB_MIXER_S16, 1, mx, + &opt_impedance, &elem); + if (err < 0) + return err; + break; + case SCARLETT_SWITCH_PAD: + sprintf(mx, "Input %d Pad Switch", ctl->num); + err = add_new_ctl(mixer, &usb_scarlett_ctl_enum, + scarlett_ctl_enum_resume, 0x01, + 0x0b, ctl->num, USB_MIXER_S16, 1, mx, + &opt_pad, &elem); + if (err < 0) + return err; + break; + case SCARLETT_SWITCH_GAIN: + sprintf(mx, "Input %d Gain Switch", ctl->num); + err = add_new_ctl(mixer, &usb_scarlett_ctl_enum, + scarlett_ctl_enum_resume, 0x01, + 0x08, ctl->num, USB_MIXER_S16, 1, mx, + &opt_gain, &elem); + if (err < 0) + return err; + break; + } + } + + return 0; +} + +/* + * Create and initialize a mixer for the Focusrite(R) Scarlett + */ +int snd_scarlett_controls_create(struct usb_mixer_interface *mixer) +{ + int err, i, o; + char mx[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + const struct scarlett_device_info *info; + struct usb_mixer_elem_info *elem; + static char sample_rate_buffer[4] = { '\x80', '\xbb', '\x00', '\x00' }; + + /* only use UAC_VERSION_2 */ + if (!mixer->protocol) + return 0; + + switch (mixer->chip->usb_id) { + case USB_ID(0x1235, 0x8012): + info = &s6i6_info; + break; + case USB_ID(0x1235, 0x8002): + info = &s8i6_info; + break; + case USB_ID(0x1235, 0x8004): + info = &s18i6_info; + break; + case USB_ID(0x1235, 0x8014): + info = &s18i8_info; + break; + case USB_ID(0x1235, 0x800c): + info = &s18i20_info; + break; + default: /* device not (yet) supported */ + return -EINVAL; + } + + /* generic function to create controls */ + err = scarlett_controls_create_generic(mixer, info); + if (err < 0) + return err; + + /* setup matrix controls */ + for (i = 0; i < info->matrix_in; i++) { + snprintf(mx, sizeof(mx), "Matrix %02d Input Playback Route", + i+1); + err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum, + scarlett_ctl_enum_resume, 0x32, + 0x06, i, USB_MIXER_S16, 1, mx, + &info->opt_matrix, &elem); + if (err < 0) + return err; + + for (o = 0; o < info->matrix_out; o++) { + sprintf(mx, "Matrix %02d Mix %c Playback Volume", i+1, + o+'A'); + err = add_new_ctl(mixer, &usb_scarlett_ctl, + scarlett_ctl_resume, 0x3c, 0x00, + (i << 3) + (o & 0x07), USB_MIXER_S16, + 1, mx, NULL, &elem); + if (err < 0) + return err; + + } + } + + for (i = 0; i < info->input_len; i++) { + snprintf(mx, sizeof(mx), "Input Source %02d Capture Route", + i+1); + err = add_new_ctl(mixer, &usb_scarlett_ctl_dynamic_enum, + scarlett_ctl_enum_resume, 0x34, + 0x00, i, USB_MIXER_S16, 1, mx, + &info->opt_master, &elem); + if (err < 0) + return err; + } + + /* val_len == 1 needed here */ + err = add_new_ctl(mixer, &usb_scarlett_ctl_enum, + scarlett_ctl_enum_resume, 0x28, 0x01, 0, + USB_MIXER_U8, 1, "Sample Clock Source", + &opt_clock, &elem); + if (err < 0) + return err; + + /* val_len == 1 and UAC2_CS_MEM */ + err = add_new_ctl(mixer, &usb_scarlett_ctl_sync, NULL, 0x3c, 0x00, 2, + USB_MIXER_U8, 1, "Sample Clock Sync Status", + &opt_sync, &elem); + if (err < 0) + return err; + + /* initialize sampling rate to 48000 */ + err = snd_usb_ctl_msg(mixer->chip->dev, + usb_sndctrlpipe(mixer->chip->dev, 0), UAC2_CS_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | + USB_DIR_OUT, 0x0100, snd_usb_ctrl_intf(mixer->chip) | + (0x29 << 8), sample_rate_buffer, 4); + if (err < 0) + return err; + + return err; +} diff --git a/sound/usb/mixer_scarlett.h b/sound/usb/mixer_scarlett.h new file mode 100644 index 000000000..bbf063b79 --- /dev/null +++ b/sound/usb/mixer_scarlett.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USB_MIXER_SCARLETT_H +#define __USB_MIXER_SCARLETT_H + +int snd_scarlett_controls_create(struct usb_mixer_interface *mixer); + +#endif /* __USB_MIXER_SCARLETT_H */ diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c new file mode 100644 index 000000000..1bcb05c73 --- /dev/null +++ b/sound/usb/mixer_scarlett_gen2.c @@ -0,0 +1,4274 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Focusrite Scarlett Gen 2/3 and Clarett+ Driver for ALSA + * + * Supported models: + * - 6i6/18i8/18i20 Gen 2 + * - Solo/2i2/4i4/8i6/18i8/18i20 Gen 3 + * - Clarett+ 8Pre + * + * Copyright (c) 2018-2022 by Geoffrey D. Bennett <g at b4.vu> + * Copyright (c) 2020-2021 by Vladimir Sadovnikov <sadko4u@gmail.com> + * Copyright (c) 2022 by Christian Colglazier <christian@cacolglazier.com> + * + * Based on the Scarlett (Gen 1) Driver for ALSA: + * + * Copyright (c) 2013 by Tobias Hoffmann + * Copyright (c) 2013 by Robin Gareus <robin at gareus.org> + * Copyright (c) 2002 by Takashi Iwai <tiwai at suse.de> + * Copyright (c) 2014 by Chris J Arges <chris.j.arges at canonical.com> + * + * Many codes borrowed from audio.c by + * Alan Cox (alan at lxorguk.ukuu.org.uk) + * Thomas Sailer (sailer at ife.ee.ethz.ch) + * + * Code cleanup: + * David Henningsson <david.henningsson at canonical.com> + */ + +/* The protocol was reverse engineered by looking at the communication + * between Focusrite Control 2.3.4 and the Focusrite(R) Scarlett 18i20 + * (firmware 1083) using usbmon in July-August 2018. + * + * Scarlett 18i8 support added in April 2019. + * + * Scarlett 6i6 support added in June 2019 (thanks to Martin Wittmann + * for providing usbmon output and testing). + * + * Scarlett 4i4/8i6 Gen 3 support added in May 2020 (thanks to Laurent + * Debricon for donating a 4i4 and to Fredrik Unger for providing 8i6 + * usbmon output and testing). + * + * Scarlett 18i8/18i20 Gen 3 support added in June 2020 (thanks to + * Darren Jaeckel, Alex Sedlack, and Clovis Lunel for providing usbmon + * output, protocol traces and testing). + * + * Support for loading mixer volume and mux configuration from the + * interface during driver initialisation added in May 2021 (thanks to + * Vladimir Sadovnikov for figuring out how). + * + * Support for Solo/2i2 Gen 3 added in May 2021 (thanks to Alexander + * Vorona for 2i2 protocol traces). + * + * Support for phantom power, direct monitoring, speaker switching, + * and talkback added in May-June 2021. + * + * Support for Clarett+ 8Pre added in Aug 2022 by Christian + * Colglazier. + * + * This ALSA mixer gives access to (model-dependent): + * - input, output, mixer-matrix muxes + * - mixer-matrix gain stages + * - gain/volume/mute controls + * - level meters + * - line/inst level, pad, and air controls + * - phantom power, direct monitor, speaker switching, and talkback + * controls + * - disable/enable MSD mode + * - disable/enable standalone mode + * + * <ditaa> + * /--------------\ 18chn 20chn /--------------\ + * | Hardware in +--+------\ /-------------+--+ ALSA PCM out | + * \--------------/ | | | | \--------------/ + * | | | /-----\ | + * | | | | | | + * | v v v | | + * | +---------------+ | | + * | \ Matrix Mux / | | + * | +-----+-----+ | | + * | | | | + * | |18chn | | + * | | | | + * | | 10chn| | + * | v | | + * | +------------+ | | + * | | Mixer | | | + * | | Matrix | | | + * | | | | | + * | | 18x10 Gain | | | + * | | stages | | | + * | +-----+------+ | | + * | | | | + * |18chn |10chn | |20chn + * | | | | + * | +----------/ | + * | | | + * v v v + * =========================== + * +---------------+ +--—------------+ + * \ Output Mux / \ Capture Mux / + * +---+---+---+ +-----+-----+ + * | | | + * 10chn| | |18chn + * | | | + * /--------------\ | | | /--------------\ + * | S/PDIF, ADAT |<--/ |10chn \-->| ALSA PCM in | + * | Hardware out | | \--------------/ + * \--------------/ | + * v + * +-------------+ Software gain per channel. + * | Master Gain |<-- 18i20 only: Switch per channel + * +------+------+ to select HW or SW gain control. + * | + * |10chn + * /--------------\ | + * | Analogue |<------/ + * | Hardware out | + * \--------------/ + * </ditaa> + * + * Gen 3 devices have a Mass Storage Device (MSD) mode where a small + * disk with registration and driver download information is presented + * to the host. To access the full functionality of the device without + * proprietary software, MSD mode can be disabled by: + * - holding down the 48V button for five seconds while powering on + * the device, or + * - using this driver and alsamixer to change the "MSD Mode" setting + * to Off and power-cycling the device + */ + +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/moduleparam.h> + +#include <sound/control.h> +#include <sound/tlv.h> + +#include "usbaudio.h" +#include "mixer.h" +#include "helper.h" + +#include "mixer_scarlett_gen2.h" + +/* device_setup value to enable */ +#define SCARLETT2_ENABLE 0x01 + +/* device_setup value to allow turning MSD mode back on */ +#define SCARLETT2_MSD_ENABLE 0x02 + +/* some gui mixers can't handle negative ctl values */ +#define SCARLETT2_VOLUME_BIAS 127 + +/* mixer range from -80dB to +6dB in 0.5dB steps */ +#define SCARLETT2_MIXER_MIN_DB -80 +#define SCARLETT2_MIXER_BIAS (-SCARLETT2_MIXER_MIN_DB * 2) +#define SCARLETT2_MIXER_MAX_DB 6 +#define SCARLETT2_MIXER_MAX_VALUE \ + ((SCARLETT2_MIXER_MAX_DB - SCARLETT2_MIXER_MIN_DB) * 2) +#define SCARLETT2_MIXER_VALUE_COUNT (SCARLETT2_MIXER_MAX_VALUE + 1) + +/* map from (dB + 80) * 2 to mixer value + * for dB in 0 .. 172: int(8192 * pow(10, ((dB - 160) / 2 / 20))) + */ +static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = { + 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, + 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8, + 9, 9, 10, 10, 11, 12, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 23, 24, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 46, 48, 51, + 54, 57, 61, 65, 68, 73, 77, 81, 86, 91, 97, 103, 109, 115, + 122, 129, 137, 145, 154, 163, 173, 183, 194, 205, 217, 230, + 244, 259, 274, 290, 307, 326, 345, 365, 387, 410, 434, 460, + 487, 516, 547, 579, 614, 650, 689, 730, 773, 819, 867, 919, + 973, 1031, 1092, 1157, 1225, 1298, 1375, 1456, 1543, 1634, + 1731, 1833, 1942, 2057, 2179, 2308, 2445, 2590, 2744, 2906, + 3078, 3261, 3454, 3659, 3876, 4105, 4349, 4606, 4879, 5168, + 5475, 5799, 6143, 6507, 6892, 7301, 7733, 8192, 8677, 9191, + 9736, 10313, 10924, 11571, 12257, 12983, 13752, 14567, 15430, + 16345 +}; + +/* Maximum number of analogue outputs */ +#define SCARLETT2_ANALOGUE_MAX 10 + +/* Maximum number of level and pad switches */ +#define SCARLETT2_LEVEL_SWITCH_MAX 2 +#define SCARLETT2_PAD_SWITCH_MAX 8 +#define SCARLETT2_AIR_SWITCH_MAX 8 +#define SCARLETT2_PHANTOM_SWITCH_MAX 2 + +/* Maximum number of inputs to the mixer */ +#define SCARLETT2_INPUT_MIX_MAX 25 + +/* Maximum number of outputs from the mixer */ +#define SCARLETT2_OUTPUT_MIX_MAX 12 + +/* Maximum size of the data in the USB mux assignment message: + * 20 inputs, 20 outputs, 25 matrix inputs, 12 spare + */ +#define SCARLETT2_MUX_MAX 77 + +/* Maximum number of meters (sum of output port counts) */ +#define SCARLETT2_MAX_METERS 65 + +/* There are three different sets of configuration parameters across + * the devices + */ +enum { + SCARLETT2_CONFIG_SET_NO_MIXER = 0, + SCARLETT2_CONFIG_SET_GEN_2 = 1, + SCARLETT2_CONFIG_SET_GEN_3 = 2, + SCARLETT2_CONFIG_SET_CLARETT = 3, + SCARLETT2_CONFIG_SET_COUNT = 4 +}; + +/* Hardware port types: + * - None (no input to mux) + * - Analogue I/O + * - S/PDIF I/O + * - ADAT I/O + * - Mixer I/O + * - PCM I/O + */ +enum { + SCARLETT2_PORT_TYPE_NONE = 0, + SCARLETT2_PORT_TYPE_ANALOGUE = 1, + SCARLETT2_PORT_TYPE_SPDIF = 2, + SCARLETT2_PORT_TYPE_ADAT = 3, + SCARLETT2_PORT_TYPE_MIX = 4, + SCARLETT2_PORT_TYPE_PCM = 5, + SCARLETT2_PORT_TYPE_COUNT = 6, +}; + +/* I/O count of each port type kept in struct scarlett2_ports */ +enum { + SCARLETT2_PORT_IN = 0, + SCARLETT2_PORT_OUT = 1, + SCARLETT2_PORT_DIRNS = 2, +}; + +/* Dim/Mute buttons on the 18i20 */ +enum { + SCARLETT2_BUTTON_MUTE = 0, + SCARLETT2_BUTTON_DIM = 1, + SCARLETT2_DIM_MUTE_COUNT = 2, +}; + +static const char *const scarlett2_dim_mute_names[SCARLETT2_DIM_MUTE_COUNT] = { + "Mute Playback Switch", "Dim Playback Switch" +}; + +/* Description of each hardware port type: + * - id: hardware ID of this port type + * - src_descr: printf format string for mux input selections + * - src_num_offset: added to channel number for the fprintf + * - dst_descr: printf format string for mixer controls + */ +struct scarlett2_port { + u16 id; + const char * const src_descr; + int src_num_offset; + const char * const dst_descr; +}; + +static const struct scarlett2_port scarlett2_ports[SCARLETT2_PORT_TYPE_COUNT] = { + [SCARLETT2_PORT_TYPE_NONE] = { + .id = 0x000, + .src_descr = "Off" + }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { + .id = 0x080, + .src_descr = "Analogue %d", + .src_num_offset = 1, + .dst_descr = "Analogue Output %02d Playback" + }, + [SCARLETT2_PORT_TYPE_SPDIF] = { + .id = 0x180, + .src_descr = "S/PDIF %d", + .src_num_offset = 1, + .dst_descr = "S/PDIF Output %d Playback" + }, + [SCARLETT2_PORT_TYPE_ADAT] = { + .id = 0x200, + .src_descr = "ADAT %d", + .src_num_offset = 1, + .dst_descr = "ADAT Output %d Playback" + }, + [SCARLETT2_PORT_TYPE_MIX] = { + .id = 0x300, + .src_descr = "Mix %c", + .src_num_offset = 'A', + .dst_descr = "Mixer Input %02d Capture" + }, + [SCARLETT2_PORT_TYPE_PCM] = { + .id = 0x600, + .src_descr = "PCM %d", + .src_num_offset = 1, + .dst_descr = "PCM %02d Capture" + }, +}; + +/* Number of mux tables: one for each band of sample rates + * (44.1/48kHz, 88.2/96kHz, and 176.4/176kHz) + */ +#define SCARLETT2_MUX_TABLES 3 + +/* Maximum number of entries in a mux table */ +#define SCARLETT2_MAX_MUX_ENTRIES 10 + +/* One entry within mux_assignment defines the port type and range of + * ports to add to the set_mux message. The end of the list is marked + * with count == 0. + */ +struct scarlett2_mux_entry { + u8 port_type; + u8 start; + u8 count; +}; + +struct scarlett2_device_info { + u32 usb_id; /* USB device identifier */ + + /* Gen 3 devices have an internal MSD mode switch that needs + * to be disabled in order to access the full functionality of + * the device. + */ + u8 has_msd_mode; + + /* which set of configuration parameters the device uses */ + u8 config_set; + + /* line out hw volume is sw controlled */ + u8 line_out_hw_vol; + + /* support for main/alt speaker switching */ + u8 has_speaker_switching; + + /* support for talkback microphone */ + u8 has_talkback; + + /* the number of analogue inputs with a software switchable + * level control that can be set to line or instrument + */ + u8 level_input_count; + + /* the first input with a level control (0-based) */ + u8 level_input_first; + + /* the number of analogue inputs with a software switchable + * 10dB pad control + */ + u8 pad_input_count; + + /* the number of analogue inputs with a software switchable + * "air" control + */ + u8 air_input_count; + + /* the number of phantom (48V) software switchable controls */ + u8 phantom_count; + + /* the number of inputs each phantom switch controls */ + u8 inputs_per_phantom; + + /* the number of direct monitor options + * (0 = none, 1 = mono only, 2 = mono/stereo) + */ + u8 direct_monitor; + + /* remap analogue outputs; 18i8 Gen 3 has "line 3/4" connected + * internally to the analogue 7/8 outputs + */ + u8 line_out_remap_enable; + u8 line_out_remap[SCARLETT2_ANALOGUE_MAX]; + + /* additional description for the line out volume controls */ + const char * const line_out_descrs[SCARLETT2_ANALOGUE_MAX]; + + /* number of sources/destinations of each port type */ + const int port_count[SCARLETT2_PORT_TYPE_COUNT][SCARLETT2_PORT_DIRNS]; + + /* layout/order of the entries in the set_mux message */ + struct scarlett2_mux_entry mux_assignment[SCARLETT2_MUX_TABLES] + [SCARLETT2_MAX_MUX_ENTRIES]; +}; + +struct scarlett2_data { + struct usb_mixer_interface *mixer; + struct mutex usb_mutex; /* prevent sending concurrent USB requests */ + struct mutex data_mutex; /* lock access to this data */ + struct delayed_work work; + const struct scarlett2_device_info *info; + __u8 bInterfaceNumber; + __u8 bEndpointAddress; + __u16 wMaxPacketSize; + __u8 bInterval; + int num_mux_srcs; + int num_mux_dsts; + u16 scarlett2_seq; + u8 sync_updated; + u8 vol_updated; + u8 input_other_updated; + u8 monitor_other_updated; + u8 mux_updated; + u8 speaker_switching_switched; + u8 sync; + u8 master_vol; + u8 vol[SCARLETT2_ANALOGUE_MAX]; + u8 vol_sw_hw_switch[SCARLETT2_ANALOGUE_MAX]; + u8 mute_switch[SCARLETT2_ANALOGUE_MAX]; + u8 level_switch[SCARLETT2_LEVEL_SWITCH_MAX]; + u8 pad_switch[SCARLETT2_PAD_SWITCH_MAX]; + u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT]; + u8 air_switch[SCARLETT2_AIR_SWITCH_MAX]; + u8 phantom_switch[SCARLETT2_PHANTOM_SWITCH_MAX]; + u8 phantom_persistence; + u8 direct_monitor_switch; + u8 speaker_switching_switch; + u8 talkback_switch; + u8 talkback_map[SCARLETT2_OUTPUT_MIX_MAX]; + u8 msd_switch; + u8 standalone_switch; + struct snd_kcontrol *sync_ctl; + struct snd_kcontrol *master_vol_ctl; + struct snd_kcontrol *vol_ctls[SCARLETT2_ANALOGUE_MAX]; + struct snd_kcontrol *sw_hw_ctls[SCARLETT2_ANALOGUE_MAX]; + struct snd_kcontrol *mute_ctls[SCARLETT2_ANALOGUE_MAX]; + struct snd_kcontrol *dim_mute_ctls[SCARLETT2_DIM_MUTE_COUNT]; + struct snd_kcontrol *level_ctls[SCARLETT2_LEVEL_SWITCH_MAX]; + struct snd_kcontrol *pad_ctls[SCARLETT2_PAD_SWITCH_MAX]; + struct snd_kcontrol *air_ctls[SCARLETT2_AIR_SWITCH_MAX]; + struct snd_kcontrol *phantom_ctls[SCARLETT2_PHANTOM_SWITCH_MAX]; + struct snd_kcontrol *mux_ctls[SCARLETT2_MUX_MAX]; + struct snd_kcontrol *direct_monitor_ctl; + struct snd_kcontrol *speaker_switching_ctl; + struct snd_kcontrol *talkback_ctl; + u8 mux[SCARLETT2_MUX_MAX]; + u8 mix[SCARLETT2_INPUT_MIX_MAX * SCARLETT2_OUTPUT_MIX_MAX]; +}; + +/*** Model-specific data ***/ + +static const struct scarlett2_device_info s6i6_gen2_info = { + .usb_id = USB_ID(0x1235, 0x8203), + + .config_set = SCARLETT2_CONFIG_SET_GEN_2, + .level_input_count = 2, + .pad_input_count = 2, + + .line_out_descrs = { + "Headphones 1 L", + "Headphones 1 R", + "Headphones 2 L", + "Headphones 2 R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 4, 4 }, + [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 }, + [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 }, + [SCARLETT2_PORT_TYPE_PCM] = { 6, 6 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 6 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 6 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 6 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info s18i8_gen2_info = { + .usb_id = USB_ID(0x1235, 0x8204), + + .config_set = SCARLETT2_CONFIG_SET_GEN_2, + .level_input_count = 2, + .pad_input_count = 4, + + .line_out_descrs = { + "Monitor L", + "Monitor R", + "Headphones 1 L", + "Headphones 1 R", + "Headphones 2 L", + "Headphones 2 R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 6 }, + [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 }, + [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 }, + [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 }, + [SCARLETT2_PORT_TYPE_PCM] = { 8, 18 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 18 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 14 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 10 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 6 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 4 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info s18i20_gen2_info = { + .usb_id = USB_ID(0x1235, 0x8201), + + .config_set = SCARLETT2_CONFIG_SET_GEN_2, + .line_out_hw_vol = 1, + + .line_out_descrs = { + "Monitor L", + "Monitor R", + NULL, + NULL, + NULL, + NULL, + "Headphones 1 L", + "Headphones 1 R", + "Headphones 2 L", + "Headphones 2 R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 10 }, + [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 }, + [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 }, + [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 }, + [SCARLETT2_PORT_TYPE_PCM] = { 20, 18 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 18 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_ADAT, 0, 8 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 14 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_ADAT, 0, 4 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 10 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 6 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info solo_gen3_info = { + .usb_id = USB_ID(0x1235, 0x8211), + + .has_msd_mode = 1, + .config_set = SCARLETT2_CONFIG_SET_NO_MIXER, + .level_input_count = 1, + .level_input_first = 1, + .air_input_count = 1, + .phantom_count = 1, + .inputs_per_phantom = 1, + .direct_monitor = 1, +}; + +static const struct scarlett2_device_info s2i2_gen3_info = { + .usb_id = USB_ID(0x1235, 0x8210), + + .has_msd_mode = 1, + .config_set = SCARLETT2_CONFIG_SET_NO_MIXER, + .level_input_count = 2, + .air_input_count = 2, + .phantom_count = 1, + .inputs_per_phantom = 2, + .direct_monitor = 2, +}; + +static const struct scarlett2_device_info s4i4_gen3_info = { + .usb_id = USB_ID(0x1235, 0x8212), + + .has_msd_mode = 1, + .config_set = SCARLETT2_CONFIG_SET_GEN_3, + .level_input_count = 2, + .pad_input_count = 2, + .air_input_count = 2, + .phantom_count = 1, + .inputs_per_phantom = 2, + + .line_out_descrs = { + "Monitor L", + "Monitor R", + "Headphones L", + "Headphones R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 4, 4 }, + [SCARLETT2_PORT_TYPE_MIX] = { 6, 8 }, + [SCARLETT2_PORT_TYPE_PCM] = { 4, 6 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 6 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 8 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 16 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 6 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 8 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 16 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 6 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 8 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 16 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info s8i6_gen3_info = { + .usb_id = USB_ID(0x1235, 0x8213), + + .has_msd_mode = 1, + .config_set = SCARLETT2_CONFIG_SET_GEN_3, + .level_input_count = 2, + .pad_input_count = 2, + .air_input_count = 2, + .phantom_count = 1, + .inputs_per_phantom = 2, + + .line_out_descrs = { + "Headphones 1 L", + "Headphones 1 R", + "Headphones 2 L", + "Headphones 2 R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 6, 4 }, + [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 }, + [SCARLETT2_PORT_TYPE_MIX] = { 8, 8 }, + [SCARLETT2_PORT_TYPE_PCM] = { 6, 10 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 8 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_PCM, 8, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 8 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 18 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 8 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_PCM, 8, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 8 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 18 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 8 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_PCM, 8, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 8 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 18 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info s18i8_gen3_info = { + .usb_id = USB_ID(0x1235, 0x8214), + + .has_msd_mode = 1, + .config_set = SCARLETT2_CONFIG_SET_GEN_3, + .line_out_hw_vol = 1, + .has_speaker_switching = 1, + .level_input_count = 2, + .pad_input_count = 4, + .air_input_count = 4, + .phantom_count = 2, + .inputs_per_phantom = 2, + + .line_out_remap_enable = 1, + .line_out_remap = { 0, 1, 6, 7, 2, 3, 4, 5 }, + + .line_out_descrs = { + "Monitor L", + "Monitor R", + "Alt Monitor L", + "Alt Monitor R", + "Headphones 1 L", + "Headphones 1 R", + "Headphones 2 L", + "Headphones 2 R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 8 }, + [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 }, + [SCARLETT2_PORT_TYPE_ADAT] = { 8, 0 }, + [SCARLETT2_PORT_TYPE_MIX] = { 10, 20 }, + [SCARLETT2_PORT_TYPE_PCM] = { 8, 20 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 10 }, + { SCARLETT2_PORT_TYPE_PCM, 12, 8 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_PCM, 10, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 20 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 10 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 10 }, + { SCARLETT2_PORT_TYPE_PCM, 12, 4 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_PCM, 10, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 20 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 10 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 10 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 2 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 6, 2 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 2, 4 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 20 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 10 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info s18i20_gen3_info = { + .usb_id = USB_ID(0x1235, 0x8215), + + .has_msd_mode = 1, + .config_set = SCARLETT2_CONFIG_SET_GEN_3, + .line_out_hw_vol = 1, + .has_speaker_switching = 1, + .has_talkback = 1, + .level_input_count = 2, + .pad_input_count = 8, + .air_input_count = 8, + .phantom_count = 2, + .inputs_per_phantom = 4, + + .line_out_descrs = { + "Monitor 1 L", + "Monitor 1 R", + "Monitor 2 L", + "Monitor 2 R", + NULL, + NULL, + "Headphones 1 L", + "Headphones 1 R", + "Headphones 2 L", + "Headphones 2 R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 9, 10 }, + [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 }, + [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 }, + [SCARLETT2_PORT_TYPE_MIX] = { 12, 25 }, + [SCARLETT2_PORT_TYPE_PCM] = { 20, 20 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 8 }, + { SCARLETT2_PORT_TYPE_PCM, 10, 10 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_ADAT, 0, 8 }, + { SCARLETT2_PORT_TYPE_PCM, 8, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 25 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 12 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 8 }, + { SCARLETT2_PORT_TYPE_PCM, 10, 8 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_ADAT, 0, 8 }, + { SCARLETT2_PORT_TYPE_PCM, 8, 2 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 25 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 10 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 10 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 24 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info clarett_8pre_info = { + .usb_id = USB_ID(0x1235, 0x820c), + + .config_set = SCARLETT2_CONFIG_SET_CLARETT, + .line_out_hw_vol = 1, + .level_input_count = 2, + .air_input_count = 8, + + .line_out_descrs = { + "Monitor L", + "Monitor R", + NULL, + NULL, + NULL, + NULL, + "Headphones 1 L", + "Headphones 1 R", + "Headphones 2 L", + "Headphones 2 R", + }, + + .port_count = { + [SCARLETT2_PORT_TYPE_NONE] = { 1, 0 }, + [SCARLETT2_PORT_TYPE_ANALOGUE] = { 8, 10 }, + [SCARLETT2_PORT_TYPE_SPDIF] = { 2, 2 }, + [SCARLETT2_PORT_TYPE_ADAT] = { 8, 8 }, + [SCARLETT2_PORT_TYPE_MIX] = { 10, 18 }, + [SCARLETT2_PORT_TYPE_PCM] = { 20, 18 }, + }, + + .mux_assignment = { { + { SCARLETT2_PORT_TYPE_PCM, 0, 18 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_ADAT, 0, 8 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 14 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_ADAT, 0, 4 }, + { SCARLETT2_PORT_TYPE_MIX, 0, 18 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 8 }, + { 0, 0, 0 }, + }, { + { SCARLETT2_PORT_TYPE_PCM, 0, 12 }, + { SCARLETT2_PORT_TYPE_ANALOGUE, 0, 10 }, + { SCARLETT2_PORT_TYPE_SPDIF, 0, 2 }, + { SCARLETT2_PORT_TYPE_NONE, 0, 22 }, + { 0, 0, 0 }, + } }, +}; + +static const struct scarlett2_device_info *scarlett2_devices[] = { + /* Supported Gen 2 devices */ + &s6i6_gen2_info, + &s18i8_gen2_info, + &s18i20_gen2_info, + + /* Supported Gen 3 devices */ + &solo_gen3_info, + &s2i2_gen3_info, + &s4i4_gen3_info, + &s8i6_gen3_info, + &s18i8_gen3_info, + &s18i20_gen3_info, + + /* Supported Clarett+ devices */ + &clarett_8pre_info, + + /* End of list */ + NULL +}; + +/* get the starting port index number for a given port type/direction */ +static int scarlett2_get_port_start_num( + const int port_count[][SCARLETT2_PORT_DIRNS], + int direction, int port_type) +{ + int i, num = 0; + + for (i = 0; i < port_type; i++) + num += port_count[i][direction]; + + return num; +} + +/*** USB Interactions ***/ + +/* Notifications from the interface */ +#define SCARLETT2_USB_NOTIFY_SYNC 0x00000008 +#define SCARLETT2_USB_NOTIFY_DIM_MUTE 0x00200000 +#define SCARLETT2_USB_NOTIFY_MONITOR 0x00400000 +#define SCARLETT2_USB_NOTIFY_INPUT_OTHER 0x00800000 +#define SCARLETT2_USB_NOTIFY_MONITOR_OTHER 0x01000000 + +/* Commands for sending/receiving requests/responses */ +#define SCARLETT2_USB_CMD_INIT 0 +#define SCARLETT2_USB_CMD_REQ 2 +#define SCARLETT2_USB_CMD_RESP 3 + +#define SCARLETT2_USB_INIT_1 0x00000000 +#define SCARLETT2_USB_INIT_2 0x00000002 +#define SCARLETT2_USB_GET_METER 0x00001001 +#define SCARLETT2_USB_GET_MIX 0x00002001 +#define SCARLETT2_USB_SET_MIX 0x00002002 +#define SCARLETT2_USB_GET_MUX 0x00003001 +#define SCARLETT2_USB_SET_MUX 0x00003002 +#define SCARLETT2_USB_GET_SYNC 0x00006004 +#define SCARLETT2_USB_GET_DATA 0x00800000 +#define SCARLETT2_USB_SET_DATA 0x00800001 +#define SCARLETT2_USB_DATA_CMD 0x00800002 + +#define SCARLETT2_USB_CONFIG_SAVE 6 + +#define SCARLETT2_USB_VOLUME_STATUS_OFFSET 0x31 +#define SCARLETT2_USB_METER_LEVELS_GET_MAGIC 1 + +/* volume status is read together (matches scarlett2_config_items[1]) */ +struct scarlett2_usb_volume_status { + /* dim/mute buttons */ + u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT]; + + u8 pad1; + + /* software volume setting */ + s16 sw_vol[SCARLETT2_ANALOGUE_MAX]; + + /* actual volume of output inc. dim (-18dB) */ + s16 hw_vol[SCARLETT2_ANALOGUE_MAX]; + + /* internal mute buttons */ + u8 mute_switch[SCARLETT2_ANALOGUE_MAX]; + + /* sw (0) or hw (1) controlled */ + u8 sw_hw_switch[SCARLETT2_ANALOGUE_MAX]; + + u8 pad3[6]; + + /* front panel volume knob */ + s16 master_vol; +} __packed; + +/* Configuration parameters that can be read and written */ +enum { + SCARLETT2_CONFIG_DIM_MUTE = 0, + SCARLETT2_CONFIG_LINE_OUT_VOLUME = 1, + SCARLETT2_CONFIG_MUTE_SWITCH = 2, + SCARLETT2_CONFIG_SW_HW_SWITCH = 3, + SCARLETT2_CONFIG_LEVEL_SWITCH = 4, + SCARLETT2_CONFIG_PAD_SWITCH = 5, + SCARLETT2_CONFIG_MSD_SWITCH = 6, + SCARLETT2_CONFIG_AIR_SWITCH = 7, + SCARLETT2_CONFIG_STANDALONE_SWITCH = 8, + SCARLETT2_CONFIG_PHANTOM_SWITCH = 9, + SCARLETT2_CONFIG_PHANTOM_PERSISTENCE = 10, + SCARLETT2_CONFIG_DIRECT_MONITOR = 11, + SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH = 12, + SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE = 13, + SCARLETT2_CONFIG_TALKBACK_MAP = 14, + SCARLETT2_CONFIG_COUNT = 15 +}; + +/* Location, size, and activation command number for the configuration + * parameters. Size is in bits and may be 1, 8, or 16. + */ +struct scarlett2_config { + u8 offset; + u8 size; + u8 activate; +}; + +static const struct scarlett2_config + scarlett2_config_items[SCARLETT2_CONFIG_SET_COUNT] + [SCARLETT2_CONFIG_COUNT] = + +/* Devices without a mixer (Gen 3 Solo and 2i2) */ +{ { + [SCARLETT2_CONFIG_MSD_SWITCH] = { + .offset = 0x04, .size = 8, .activate = 6 }, + + [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = { + .offset = 0x05, .size = 8, .activate = 6 }, + + [SCARLETT2_CONFIG_PHANTOM_SWITCH] = { + .offset = 0x06, .size = 8, .activate = 3 }, + + [SCARLETT2_CONFIG_DIRECT_MONITOR] = { + .offset = 0x07, .size = 8, .activate = 4 }, + + [SCARLETT2_CONFIG_LEVEL_SWITCH] = { + .offset = 0x08, .size = 1, .activate = 7 }, + + [SCARLETT2_CONFIG_AIR_SWITCH] = { + .offset = 0x09, .size = 1, .activate = 8 }, + +/* Gen 2 devices: 6i6, 18i8, 18i20 */ +}, { + [SCARLETT2_CONFIG_DIM_MUTE] = { + .offset = 0x31, .size = 8, .activate = 2 }, + + [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = { + .offset = 0x34, .size = 16, .activate = 1 }, + + [SCARLETT2_CONFIG_MUTE_SWITCH] = { + .offset = 0x5c, .size = 8, .activate = 1 }, + + [SCARLETT2_CONFIG_SW_HW_SWITCH] = { + .offset = 0x66, .size = 8, .activate = 3 }, + + [SCARLETT2_CONFIG_LEVEL_SWITCH] = { + .offset = 0x7c, .size = 8, .activate = 7 }, + + [SCARLETT2_CONFIG_PAD_SWITCH] = { + .offset = 0x84, .size = 8, .activate = 8 }, + + [SCARLETT2_CONFIG_STANDALONE_SWITCH] = { + .offset = 0x8d, .size = 8, .activate = 6 }, + +/* Gen 3 devices: 4i4, 8i6, 18i8, 18i20 */ +}, { + [SCARLETT2_CONFIG_DIM_MUTE] = { + .offset = 0x31, .size = 8, .activate = 2 }, + + [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = { + .offset = 0x34, .size = 16, .activate = 1 }, + + [SCARLETT2_CONFIG_MUTE_SWITCH] = { + .offset = 0x5c, .size = 8, .activate = 1 }, + + [SCARLETT2_CONFIG_SW_HW_SWITCH] = { + .offset = 0x66, .size = 8, .activate = 3 }, + + [SCARLETT2_CONFIG_LEVEL_SWITCH] = { + .offset = 0x7c, .size = 8, .activate = 7 }, + + [SCARLETT2_CONFIG_PAD_SWITCH] = { + .offset = 0x84, .size = 8, .activate = 8 }, + + [SCARLETT2_CONFIG_AIR_SWITCH] = { + .offset = 0x8c, .size = 8, .activate = 8 }, + + [SCARLETT2_CONFIG_STANDALONE_SWITCH] = { + .offset = 0x95, .size = 8, .activate = 6 }, + + [SCARLETT2_CONFIG_PHANTOM_SWITCH] = { + .offset = 0x9c, .size = 1, .activate = 8 }, + + [SCARLETT2_CONFIG_MSD_SWITCH] = { + .offset = 0x9d, .size = 8, .activate = 6 }, + + [SCARLETT2_CONFIG_PHANTOM_PERSISTENCE] = { + .offset = 0x9e, .size = 8, .activate = 6 }, + + [SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH] = { + .offset = 0x9f, .size = 1, .activate = 10 }, + + [SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE] = { + .offset = 0xa0, .size = 1, .activate = 10 }, + + [SCARLETT2_CONFIG_TALKBACK_MAP] = { + .offset = 0xb0, .size = 16, .activate = 10 }, + +/* Clarett+ 8Pre */ +}, { + [SCARLETT2_CONFIG_DIM_MUTE] = { + .offset = 0x31, .size = 8, .activate = 2 }, + + [SCARLETT2_CONFIG_LINE_OUT_VOLUME] = { + .offset = 0x34, .size = 16, .activate = 1 }, + + [SCARLETT2_CONFIG_MUTE_SWITCH] = { + .offset = 0x5c, .size = 8, .activate = 1 }, + + [SCARLETT2_CONFIG_SW_HW_SWITCH] = { + .offset = 0x66, .size = 8, .activate = 3 }, + + [SCARLETT2_CONFIG_LEVEL_SWITCH] = { + .offset = 0x7c, .size = 8, .activate = 7 }, + + [SCARLETT2_CONFIG_AIR_SWITCH] = { + .offset = 0x95, .size = 8, .activate = 8 }, + + [SCARLETT2_CONFIG_STANDALONE_SWITCH] = { + .offset = 0x8d, .size = 8, .activate = 6 }, +} }; + +/* proprietary request/response format */ +struct scarlett2_usb_packet { + __le32 cmd; + __le16 size; + __le16 seq; + __le32 error; + __le32 pad; + u8 data[]; +}; + +static void scarlett2_fill_request_header(struct scarlett2_data *private, + struct scarlett2_usb_packet *req, + u32 cmd, u16 req_size) +{ + /* sequence must go up by 1 for each request */ + u16 seq = private->scarlett2_seq++; + + req->cmd = cpu_to_le32(cmd); + req->size = cpu_to_le16(req_size); + req->seq = cpu_to_le16(seq); + req->error = 0; + req->pad = 0; +} + +static int scarlett2_usb_tx(struct usb_device *dev, int interface, + void *buf, u16 size) +{ + return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + SCARLETT2_USB_CMD_REQ, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + 0, interface, buf, size); +} + +static int scarlett2_usb_rx(struct usb_device *dev, int interface, + u32 usb_req, void *buf, u16 size) +{ + return snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + usb_req, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + 0, interface, buf, size); +} + +/* Send a proprietary format request to the Scarlett interface */ +static int scarlett2_usb( + struct usb_mixer_interface *mixer, u32 cmd, + void *req_data, u16 req_size, void *resp_data, u16 resp_size) +{ + struct scarlett2_data *private = mixer->private_data; + struct usb_device *dev = mixer->chip->dev; + struct scarlett2_usb_packet *req, *resp = NULL; + size_t req_buf_size = struct_size(req, data, req_size); + size_t resp_buf_size = struct_size(resp, data, resp_size); + int err; + + req = kmalloc(req_buf_size, GFP_KERNEL); + if (!req) { + err = -ENOMEM; + goto error; + } + + resp = kmalloc(resp_buf_size, GFP_KERNEL); + if (!resp) { + err = -ENOMEM; + goto error; + } + + mutex_lock(&private->usb_mutex); + + /* build request message and send it */ + + scarlett2_fill_request_header(private, req, cmd, req_size); + + if (req_size) + memcpy(req->data, req_data, req_size); + + err = scarlett2_usb_tx(dev, private->bInterfaceNumber, + req, req_buf_size); + + if (err != req_buf_size) { + usb_audio_err( + mixer->chip, + "Scarlett Gen 2/3 USB request result cmd %x was %d\n", + cmd, err); + err = -EINVAL; + goto unlock; + } + + /* send a second message to get the response */ + + err = scarlett2_usb_rx(dev, private->bInterfaceNumber, + SCARLETT2_USB_CMD_RESP, + resp, resp_buf_size); + + /* validate the response */ + + if (err != resp_buf_size) { + usb_audio_err( + mixer->chip, + "Scarlett Gen 2/3 USB response result cmd %x was %d " + "expected %zu\n", + cmd, err, resp_buf_size); + err = -EINVAL; + goto unlock; + } + + /* cmd/seq/size should match except when initialising + * seq sent = 1, response = 0 + */ + if (resp->cmd != req->cmd || + (resp->seq != req->seq && + (le16_to_cpu(req->seq) != 1 || resp->seq != 0)) || + resp_size != le16_to_cpu(resp->size) || + resp->error || + resp->pad) { + usb_audio_err( + mixer->chip, + "Scarlett Gen 2/3 USB invalid response; " + "cmd tx/rx %d/%d seq %d/%d size %d/%d " + "error %d pad %d\n", + le32_to_cpu(req->cmd), le32_to_cpu(resp->cmd), + le16_to_cpu(req->seq), le16_to_cpu(resp->seq), + resp_size, le16_to_cpu(resp->size), + le32_to_cpu(resp->error), + le32_to_cpu(resp->pad)); + err = -EINVAL; + goto unlock; + } + + if (resp_data && resp_size > 0) + memcpy(resp_data, resp->data, resp_size); + +unlock: + mutex_unlock(&private->usb_mutex); +error: + kfree(req); + kfree(resp); + return err; +} + +/* Send a USB message to get data; result placed in *buf */ +static int scarlett2_usb_get( + struct usb_mixer_interface *mixer, + int offset, void *buf, int size) +{ + struct { + __le32 offset; + __le32 size; + } __packed req; + + req.offset = cpu_to_le32(offset); + req.size = cpu_to_le32(size); + return scarlett2_usb(mixer, SCARLETT2_USB_GET_DATA, + &req, sizeof(req), buf, size); +} + +/* Send a USB message to get configuration parameters; result placed in *buf */ +static int scarlett2_usb_get_config( + struct usb_mixer_interface *mixer, + int config_item_num, int count, void *buf) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const struct scarlett2_config *config_item = + &scarlett2_config_items[info->config_set][config_item_num]; + int size, err, i; + u8 *buf_8; + u8 value; + + /* For byte-sized parameters, retrieve directly into buf */ + if (config_item->size >= 8) { + size = config_item->size / 8 * count; + err = scarlett2_usb_get(mixer, config_item->offset, buf, size); + if (err < 0) + return err; + if (size == 2) { + u16 *buf_16 = buf; + + for (i = 0; i < count; i++, buf_16++) + *buf_16 = le16_to_cpu(*(__le16 *)buf_16); + } + return 0; + } + + /* For bit-sized parameters, retrieve into value */ + err = scarlett2_usb_get(mixer, config_item->offset, &value, 1); + if (err < 0) + return err; + + /* then unpack from value into buf[] */ + buf_8 = buf; + for (i = 0; i < 8 && i < count; i++, value >>= 1) + *buf_8++ = value & 1; + + return 0; +} + +/* Send SCARLETT2_USB_DATA_CMD SCARLETT2_USB_CONFIG_SAVE */ +static void scarlett2_config_save(struct usb_mixer_interface *mixer) +{ + __le32 req = cpu_to_le32(SCARLETT2_USB_CONFIG_SAVE); + + int err = scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD, + &req, sizeof(u32), + NULL, 0); + if (err < 0) + usb_audio_err(mixer->chip, "config save failed: %d\n", err); +} + +/* Delayed work to save config */ +static void scarlett2_config_save_work(struct work_struct *work) +{ + struct scarlett2_data *private = + container_of(work, struct scarlett2_data, work.work); + + scarlett2_config_save(private->mixer); +} + +/* Send a USB message to set a SCARLETT2_CONFIG_* parameter */ +static int scarlett2_usb_set_config( + struct usb_mixer_interface *mixer, + int config_item_num, int index, int value) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const struct scarlett2_config *config_item = + &scarlett2_config_items[info->config_set][config_item_num]; + struct { + __le32 offset; + __le32 bytes; + __le32 value; + } __packed req; + __le32 req2; + int offset, size; + int err; + + /* Cancel any pending NVRAM save */ + cancel_delayed_work_sync(&private->work); + + /* Convert config_item->size in bits to size in bytes and + * calculate offset + */ + if (config_item->size >= 8) { + size = config_item->size / 8; + offset = config_item->offset + index * size; + + /* If updating a bit, retrieve the old value, set/clear the + * bit as needed, and update value + */ + } else { + u8 tmp; + + size = 1; + offset = config_item->offset; + + err = scarlett2_usb_get(mixer, offset, &tmp, 1); + if (err < 0) + return err; + + if (value) + tmp |= (1 << index); + else + tmp &= ~(1 << index); + + value = tmp; + } + + /* Send the configuration parameter data */ + req.offset = cpu_to_le32(offset); + req.bytes = cpu_to_le32(size); + req.value = cpu_to_le32(value); + err = scarlett2_usb(mixer, SCARLETT2_USB_SET_DATA, + &req, sizeof(u32) * 2 + size, + NULL, 0); + if (err < 0) + return err; + + /* Activate the change */ + req2 = cpu_to_le32(config_item->activate); + err = scarlett2_usb(mixer, SCARLETT2_USB_DATA_CMD, + &req2, sizeof(req2), NULL, 0); + if (err < 0) + return err; + + /* Schedule the change to be written to NVRAM */ + if (config_item->activate != SCARLETT2_USB_CONFIG_SAVE) + schedule_delayed_work(&private->work, msecs_to_jiffies(2000)); + + return 0; +} + +/* Send a USB message to get sync status; result placed in *sync */ +static int scarlett2_usb_get_sync_status( + struct usb_mixer_interface *mixer, + u8 *sync) +{ + __le32 data; + int err; + + err = scarlett2_usb(mixer, SCARLETT2_USB_GET_SYNC, + NULL, 0, &data, sizeof(data)); + if (err < 0) + return err; + + *sync = !!data; + return 0; +} + +/* Send a USB message to get volume status; result placed in *buf */ +static int scarlett2_usb_get_volume_status( + struct usb_mixer_interface *mixer, + struct scarlett2_usb_volume_status *buf) +{ + return scarlett2_usb_get(mixer, SCARLETT2_USB_VOLUME_STATUS_OFFSET, + buf, sizeof(*buf)); +} + +/* Send a USB message to get the volumes for all inputs of one mix + * and put the values into private->mix[] + */ +static int scarlett2_usb_get_mix(struct usb_mixer_interface *mixer, + int mix_num) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + int num_mixer_in = + info->port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT]; + int err, i, j, k; + + struct { + __le16 mix_num; + __le16 count; + } __packed req; + + __le16 data[SCARLETT2_INPUT_MIX_MAX]; + + req.mix_num = cpu_to_le16(mix_num); + req.count = cpu_to_le16(num_mixer_in); + + err = scarlett2_usb(mixer, SCARLETT2_USB_GET_MIX, + &req, sizeof(req), + data, num_mixer_in * sizeof(u16)); + if (err < 0) + return err; + + for (i = 0, j = mix_num * num_mixer_in; i < num_mixer_in; i++, j++) { + u16 mixer_value = le16_to_cpu(data[i]); + + for (k = 0; k < SCARLETT2_MIXER_VALUE_COUNT; k++) + if (scarlett2_mixer_values[k] >= mixer_value) + break; + if (k == SCARLETT2_MIXER_VALUE_COUNT) + k = SCARLETT2_MIXER_MAX_VALUE; + private->mix[j] = k; + } + + return 0; +} + +/* Send a USB message to set the volumes for all inputs of one mix + * (values obtained from private->mix[]) + */ +static int scarlett2_usb_set_mix(struct usb_mixer_interface *mixer, + int mix_num) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + struct { + __le16 mix_num; + __le16 data[SCARLETT2_INPUT_MIX_MAX]; + } __packed req; + + int i, j; + int num_mixer_in = + info->port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT]; + + req.mix_num = cpu_to_le16(mix_num); + + for (i = 0, j = mix_num * num_mixer_in; i < num_mixer_in; i++, j++) + req.data[i] = cpu_to_le16( + scarlett2_mixer_values[private->mix[j]] + ); + + return scarlett2_usb(mixer, SCARLETT2_USB_SET_MIX, + &req, (num_mixer_in + 1) * sizeof(u16), + NULL, 0); +} + +/* Convert a port number index (per info->port_count) to a hardware ID */ +static u32 scarlett2_mux_src_num_to_id( + const int port_count[][SCARLETT2_PORT_DIRNS], int num) +{ + int port_type; + + for (port_type = 0; + port_type < SCARLETT2_PORT_TYPE_COUNT; + port_type++) { + if (num < port_count[port_type][SCARLETT2_PORT_IN]) + return scarlett2_ports[port_type].id | num; + num -= port_count[port_type][SCARLETT2_PORT_IN]; + } + + /* Oops */ + return 0; +} + +/* Convert a hardware ID to a port number index */ +static u32 scarlett2_mux_id_to_num( + const int port_count[][SCARLETT2_PORT_DIRNS], int direction, u32 id) +{ + int port_type; + int port_num = 0; + + for (port_type = 0; + port_type < SCARLETT2_PORT_TYPE_COUNT; + port_type++) { + int base = scarlett2_ports[port_type].id; + int count = port_count[port_type][direction]; + + if (id >= base && id < base + count) + return port_num + id - base; + port_num += count; + } + + /* Oops */ + return -1; +} + +/* Convert one mux entry from the interface and load into private->mux[] */ +static void scarlett2_usb_populate_mux(struct scarlett2_data *private, + u32 mux_entry) +{ + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + + int dst_idx, src_idx; + + dst_idx = scarlett2_mux_id_to_num(port_count, SCARLETT2_PORT_OUT, + mux_entry & 0xFFF); + if (dst_idx < 0) + return; + + if (dst_idx >= private->num_mux_dsts) { + usb_audio_err(private->mixer->chip, + "BUG: scarlett2_mux_id_to_num(%06x, OUT): %d >= %d", + mux_entry, dst_idx, private->num_mux_dsts); + return; + } + + src_idx = scarlett2_mux_id_to_num(port_count, SCARLETT2_PORT_IN, + mux_entry >> 12); + if (src_idx < 0) + return; + + if (src_idx >= private->num_mux_srcs) { + usb_audio_err(private->mixer->chip, + "BUG: scarlett2_mux_id_to_num(%06x, IN): %d >= %d", + mux_entry, src_idx, private->num_mux_srcs); + return; + } + + private->mux[dst_idx] = src_idx; +} + +/* Send USB message to get mux inputs and then populate private->mux[] */ +static int scarlett2_usb_get_mux(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + int count = private->num_mux_dsts; + int err, i; + + struct { + __le16 num; + __le16 count; + } __packed req; + + __le32 data[SCARLETT2_MUX_MAX]; + + private->mux_updated = 0; + + req.num = 0; + req.count = cpu_to_le16(count); + + err = scarlett2_usb(mixer, SCARLETT2_USB_GET_MUX, + &req, sizeof(req), + data, count * sizeof(u32)); + if (err < 0) + return err; + + for (i = 0; i < count; i++) + scarlett2_usb_populate_mux(private, le32_to_cpu(data[i])); + + return 0; +} + +/* Send USB messages to set mux inputs */ +static int scarlett2_usb_set_mux(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int table; + + struct { + __le16 pad; + __le16 num; + __le32 data[SCARLETT2_MUX_MAX]; + } __packed req; + + req.pad = 0; + + /* set mux settings for each rate */ + for (table = 0; table < SCARLETT2_MUX_TABLES; table++) { + const struct scarlett2_mux_entry *entry; + + /* i counts over the output array */ + int i = 0, err; + + req.num = cpu_to_le16(table); + + /* loop through each entry */ + for (entry = info->mux_assignment[table]; + entry->count; + entry++) { + int j; + int port_type = entry->port_type; + int port_idx = entry->start; + int mux_idx = scarlett2_get_port_start_num(port_count, + SCARLETT2_PORT_OUT, port_type) + port_idx; + int dst_id = scarlett2_ports[port_type].id + port_idx; + + /* Empty slots */ + if (!dst_id) { + for (j = 0; j < entry->count; j++) + req.data[i++] = 0; + continue; + } + + /* Non-empty mux slots use the lower 12 bits + * for the destination and next 12 bits for + * the source + */ + for (j = 0; j < entry->count; j++) { + int src_id = scarlett2_mux_src_num_to_id( + port_count, private->mux[mux_idx++]); + req.data[i++] = cpu_to_le32(dst_id | + src_id << 12); + dst_id++; + } + } + + err = scarlett2_usb(mixer, SCARLETT2_USB_SET_MUX, + &req, (i + 1) * sizeof(u32), + NULL, 0); + if (err < 0) + return err; + } + + return 0; +} + +/* Send USB message to get meter levels */ +static int scarlett2_usb_get_meter_levels(struct usb_mixer_interface *mixer, + u16 num_meters, u16 *levels) +{ + struct { + __le16 pad; + __le16 num_meters; + __le32 magic; + } __packed req; + u32 resp[SCARLETT2_MAX_METERS]; + int i, err; + + req.pad = 0; + req.num_meters = cpu_to_le16(num_meters); + req.magic = cpu_to_le32(SCARLETT2_USB_METER_LEVELS_GET_MAGIC); + err = scarlett2_usb(mixer, SCARLETT2_USB_GET_METER, + &req, sizeof(req), resp, num_meters * sizeof(u32)); + if (err < 0) + return err; + + /* copy, convert to u16 */ + for (i = 0; i < num_meters; i++) + levels[i] = resp[i]; + + return 0; +} + +/*** Control Functions ***/ + +/* helper function to create a new control */ +static int scarlett2_add_new_ctl(struct usb_mixer_interface *mixer, + const struct snd_kcontrol_new *ncontrol, + int index, int channels, const char *name, + struct snd_kcontrol **kctl_return) +{ + struct snd_kcontrol *kctl; + struct usb_mixer_elem_info *elem; + int err; + + elem = kzalloc(sizeof(*elem), GFP_KERNEL); + if (!elem) + return -ENOMEM; + + /* We set USB_MIXER_BESPOKEN type, so that the core USB mixer code + * ignores them for resume and other operations. + * Also, the head.id field is set to 0, as we don't use this field. + */ + elem->head.mixer = mixer; + elem->control = index; + elem->head.id = 0; + elem->channels = channels; + elem->val_type = USB_MIXER_BESPOKEN; + + kctl = snd_ctl_new1(ncontrol, elem); + if (!kctl) { + kfree(elem); + return -ENOMEM; + } + kctl->private_free = snd_usb_mixer_elem_free; + + strscpy(kctl->id.name, name, sizeof(kctl->id.name)); + + err = snd_usb_mixer_add_control(&elem->head, kctl); + if (err < 0) + return err; + + if (kctl_return) + *kctl_return = kctl; + + return 0; +} + +/*** Sync Control ***/ + +/* Update sync control after receiving notification that the status + * has changed + */ +static int scarlett2_update_sync(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + + private->sync_updated = 0; + return scarlett2_usb_get_sync_status(mixer, &private->sync); +} + +static int scarlett2_sync_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + static const char *texts[2] = { + "Unlocked", "Locked" + }; + return snd_ctl_enum_info(uinfo, 1, 2, texts); +} + +static int scarlett2_sync_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->sync_updated) { + err = scarlett2_update_sync(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.enumerated.item[0] = private->sync; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_sync_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .name = "", + .info = scarlett2_sync_ctl_info, + .get = scarlett2_sync_ctl_get +}; + +static int scarlett2_add_sync_ctl(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + + /* devices without a mixer also don't support reporting sync status */ + if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER) + return 0; + + return scarlett2_add_new_ctl(mixer, &scarlett2_sync_ctl, + 0, 1, "Sync Status", &private->sync_ctl); +} + +/*** Analogue Line Out Volume Controls ***/ + +/* Update hardware volume controls after receiving notification that + * they have changed + */ +static int scarlett2_update_volumes(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + struct scarlett2_usb_volume_status volume_status; + int num_line_out = + port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT]; + int err, i; + int mute; + + private->vol_updated = 0; + + err = scarlett2_usb_get_volume_status(mixer, &volume_status); + if (err < 0) + return err; + + private->master_vol = clamp( + volume_status.master_vol + SCARLETT2_VOLUME_BIAS, + 0, SCARLETT2_VOLUME_BIAS); + + if (info->line_out_hw_vol) + for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++) + private->dim_mute[i] = !!volume_status.dim_mute[i]; + + mute = private->dim_mute[SCARLETT2_BUTTON_MUTE]; + + for (i = 0; i < num_line_out; i++) + if (private->vol_sw_hw_switch[i]) { + private->vol[i] = private->master_vol; + private->mute_switch[i] = mute; + } + + return 0; +} + +static int scarlett2_volume_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = elem->channels; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = SCARLETT2_VOLUME_BIAS; + uinfo->value.integer.step = 1; + return 0; +} + +static int scarlett2_master_volume_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.integer.value[0] = private->master_vol; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int line_out_remap(struct scarlett2_data *private, int index) +{ + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int line_out_count = + port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT]; + + if (!info->line_out_remap_enable) + return index; + + if (index >= line_out_count) + return index; + + return info->line_out_remap[index]; +} + +static int scarlett2_volume_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int index = line_out_remap(private, elem->control); + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.integer.value[0] = private->vol[index]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_volume_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int index = line_out_remap(private, elem->control); + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->vol[index]; + val = ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->vol[index] = val; + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_LINE_OUT_VOLUME, + index, val - SCARLETT2_VOLUME_BIAS); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const DECLARE_TLV_DB_MINMAX( + db_scale_scarlett2_gain, -SCARLETT2_VOLUME_BIAS * 100, 0 +); + +static const struct snd_kcontrol_new scarlett2_master_volume_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READ | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .name = "", + .info = scarlett2_volume_ctl_info, + .get = scarlett2_master_volume_ctl_get, + .private_value = 0, /* max value */ + .tlv = { .p = db_scale_scarlett2_gain } +}; + +static const struct snd_kcontrol_new scarlett2_line_out_volume_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .name = "", + .info = scarlett2_volume_ctl_info, + .get = scarlett2_volume_ctl_get, + .put = scarlett2_volume_ctl_put, + .private_value = 0, /* max value */ + .tlv = { .p = db_scale_scarlett2_gain } +}; + +/*** Mute Switch Controls ***/ + +static int scarlett2_mute_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int index = line_out_remap(private, elem->control); + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.integer.value[0] = private->mute_switch[index]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_mute_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int index = line_out_remap(private, elem->control); + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->mute_switch[index]; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->mute_switch[index] = val; + + /* Send mute change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_MUTE_SWITCH, + index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_mute_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_mute_ctl_get, + .put = scarlett2_mute_ctl_put, +}; + +/*** HW/SW Volume Switch Controls ***/ + +static void scarlett2_sw_hw_ctl_ro(struct scarlett2_data *private, int index) +{ + private->sw_hw_ctls[index]->vd[0].access &= + ~SNDRV_CTL_ELEM_ACCESS_WRITE; +} + +static void scarlett2_sw_hw_ctl_rw(struct scarlett2_data *private, int index) +{ + private->sw_hw_ctls[index]->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_WRITE; +} + +static int scarlett2_sw_hw_enum_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const values[2] = { + "SW", "HW" + }; + + return snd_ctl_enum_info(uinfo, 1, 2, values); +} + +static int scarlett2_sw_hw_enum_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett2_data *private = elem->head.mixer->private_data; + int index = line_out_remap(private, elem->control); + + ucontrol->value.enumerated.item[0] = private->vol_sw_hw_switch[index]; + return 0; +} + +static void scarlett2_vol_ctl_set_writable(struct usb_mixer_interface *mixer, + int index, int value) +{ + struct scarlett2_data *private = mixer->private_data; + struct snd_card *card = mixer->chip->card; + + /* Set/Clear write bits */ + if (value) { + private->vol_ctls[index]->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_WRITE; + private->mute_ctls[index]->vd[0].access |= + SNDRV_CTL_ELEM_ACCESS_WRITE; + } else { + private->vol_ctls[index]->vd[0].access &= + ~SNDRV_CTL_ELEM_ACCESS_WRITE; + private->mute_ctls[index]->vd[0].access &= + ~SNDRV_CTL_ELEM_ACCESS_WRITE; + } + + /* Notify of write bit and possible value change */ + snd_ctl_notify(card, + SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO, + &private->vol_ctls[index]->id); + snd_ctl_notify(card, + SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO, + &private->mute_ctls[index]->id); +} + +static int scarlett2_sw_hw_change(struct usb_mixer_interface *mixer, + int ctl_index, int val) +{ + struct scarlett2_data *private = mixer->private_data; + int index = line_out_remap(private, ctl_index); + int err; + + private->vol_sw_hw_switch[index] = val; + + /* Change access mode to RO (hardware controlled volume) + * or RW (software controlled volume) + */ + scarlett2_vol_ctl_set_writable(mixer, ctl_index, !val); + + /* Reset volume/mute to master volume/mute */ + private->vol[index] = private->master_vol; + private->mute_switch[index] = private->dim_mute[SCARLETT2_BUTTON_MUTE]; + + /* Set SW volume to current HW volume */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_LINE_OUT_VOLUME, + index, private->master_vol - SCARLETT2_VOLUME_BIAS); + if (err < 0) + return err; + + /* Set SW mute to current HW mute */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_MUTE_SWITCH, + index, private->dim_mute[SCARLETT2_BUTTON_MUTE]); + if (err < 0) + return err; + + /* Send SW/HW switch change to the device */ + return scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_SW_HW_SWITCH, + index, val); +} + +static int scarlett2_sw_hw_enum_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int ctl_index = elem->control; + int index = line_out_remap(private, ctl_index); + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->vol_sw_hw_switch[index]; + val = !!ucontrol->value.enumerated.item[0]; + + if (oval == val) + goto unlock; + + err = scarlett2_sw_hw_change(mixer, ctl_index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_sw_hw_enum_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett2_sw_hw_enum_ctl_info, + .get = scarlett2_sw_hw_enum_ctl_get, + .put = scarlett2_sw_hw_enum_ctl_put, +}; + +/*** Line Level/Instrument Level Switch Controls ***/ + +static int scarlett2_update_input_other(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + private->input_other_updated = 0; + + if (info->level_input_count) { + int err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_LEVEL_SWITCH, + info->level_input_count + info->level_input_first, + private->level_switch); + if (err < 0) + return err; + } + + if (info->pad_input_count) { + int err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_PAD_SWITCH, + info->pad_input_count, private->pad_switch); + if (err < 0) + return err; + } + + if (info->air_input_count) { + int err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_AIR_SWITCH, + info->air_input_count, private->air_switch); + if (err < 0) + return err; + } + + if (info->phantom_count) { + int err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH, + info->phantom_count, private->phantom_switch); + if (err < 0) + return err; + + err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE, + 1, &private->phantom_persistence); + if (err < 0) + return err; + } + + return 0; +} + +static int scarlett2_level_enum_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + static const char *const values[2] = { + "Line", "Inst" + }; + + return snd_ctl_enum_info(uinfo, 1, 2, values); +} + +static int scarlett2_level_enum_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + int index = elem->control + info->level_input_first; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.enumerated.item[0] = private->level_switch[index]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_level_enum_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + int index = elem->control + info->level_input_first; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->level_switch[index]; + val = !!ucontrol->value.enumerated.item[0]; + + if (oval == val) + goto unlock; + + private->level_switch[index] = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_LEVEL_SWITCH, + index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_level_enum_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett2_level_enum_ctl_info, + .get = scarlett2_level_enum_ctl_get, + .put = scarlett2_level_enum_ctl_put, +}; + +/*** Pad Switch Controls ***/ + +static int scarlett2_pad_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.integer.value[0] = + private->pad_switch[elem->control]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_pad_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int index = elem->control; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->pad_switch[index]; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->pad_switch[index] = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PAD_SWITCH, + index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_pad_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_pad_ctl_get, + .put = scarlett2_pad_ctl_put, +}; + +/*** Air Switch Controls ***/ + +static int scarlett2_air_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.integer.value[0] = private->air_switch[elem->control]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_air_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int index = elem->control; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->air_switch[index]; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->air_switch[index] = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_AIR_SWITCH, + index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_air_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_air_ctl_get, + .put = scarlett2_air_ctl_put, +}; + +/*** Phantom Switch Controls ***/ + +static int scarlett2_phantom_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->input_other_updated) { + err = scarlett2_update_input_other(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.integer.value[0] = + private->phantom_switch[elem->control]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_phantom_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int index = elem->control; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->phantom_switch[index]; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->phantom_switch[index] = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_PHANTOM_SWITCH, + index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_phantom_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_phantom_ctl_get, + .put = scarlett2_phantom_ctl_put, +}; + +/*** Phantom Persistence Control ***/ + +static int scarlett2_phantom_persistence_ctl_get( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett2_data *private = elem->head.mixer->private_data; + + ucontrol->value.integer.value[0] = private->phantom_persistence; + return 0; +} + +static int scarlett2_phantom_persistence_ctl_put( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int index = elem->control; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->phantom_persistence; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->phantom_persistence = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE, index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_phantom_persistence_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_phantom_persistence_ctl_get, + .put = scarlett2_phantom_persistence_ctl_put, +}; + +/*** Direct Monitor Control ***/ + +static int scarlett2_update_monitor_other(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + int err; + + /* monitor_other_enable[0] enables speaker switching + * monitor_other_enable[1] enables talkback + */ + u8 monitor_other_enable[2]; + + /* monitor_other_switch[0] activates the alternate speakers + * monitor_other_switch[1] activates talkback + */ + u8 monitor_other_switch[2]; + + private->monitor_other_updated = 0; + + if (info->direct_monitor) + return scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_DIRECT_MONITOR, + 1, &private->direct_monitor_switch); + + /* if it doesn't do speaker switching then it also doesn't do + * talkback + */ + if (!info->has_speaker_switching) + return 0; + + err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE, + 2, monitor_other_enable); + if (err < 0) + return err; + + err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH, + 2, monitor_other_switch); + if (err < 0) + return err; + + if (!monitor_other_enable[0]) + private->speaker_switching_switch = 0; + else + private->speaker_switching_switch = monitor_other_switch[0] + 1; + + if (info->has_talkback) { + const int (*port_count)[SCARLETT2_PORT_DIRNS] = + info->port_count; + int num_mixes = + port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN]; + u16 bitmap; + int i; + + if (!monitor_other_enable[1]) + private->talkback_switch = 0; + else + private->talkback_switch = monitor_other_switch[1] + 1; + + err = scarlett2_usb_get_config(mixer, + SCARLETT2_CONFIG_TALKBACK_MAP, + 1, &bitmap); + if (err < 0) + return err; + for (i = 0; i < num_mixes; i++, bitmap >>= 1) + private->talkback_map[i] = bitmap & 1; + } + + return 0; +} + +static int scarlett2_direct_monitor_ctl_get( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = elem->head.mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->monitor_other_updated) { + err = scarlett2_update_monitor_other(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.enumerated.item[0] = private->direct_monitor_switch; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_direct_monitor_ctl_put( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int index = elem->control; + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->direct_monitor_switch; + val = min(ucontrol->value.enumerated.item[0], 2U); + + if (oval == val) + goto unlock; + + private->direct_monitor_switch = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_DIRECT_MONITOR, index, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_direct_monitor_stereo_enum_ctl_info( + struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo) +{ + static const char *const values[3] = { + "Off", "Mono", "Stereo" + }; + + return snd_ctl_enum_info(uinfo, 1, 3, values); +} + +/* Direct Monitor for Solo is mono-only and only needs a boolean control + * Direct Monitor for 2i2 is selectable between Off/Mono/Stereo + */ +static const struct snd_kcontrol_new scarlett2_direct_monitor_ctl[2] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_direct_monitor_ctl_get, + .put = scarlett2_direct_monitor_ctl_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett2_direct_monitor_stereo_enum_ctl_info, + .get = scarlett2_direct_monitor_ctl_get, + .put = scarlett2_direct_monitor_ctl_put, + } +}; + +static int scarlett2_add_direct_monitor_ctl(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const char *s; + + if (!info->direct_monitor) + return 0; + + s = info->direct_monitor == 1 + ? "Direct Monitor Playback Switch" + : "Direct Monitor Playback Enum"; + + return scarlett2_add_new_ctl( + mixer, &scarlett2_direct_monitor_ctl[info->direct_monitor - 1], + 0, 1, s, &private->direct_monitor_ctl); +} + +/*** Speaker Switching Control ***/ + +static int scarlett2_speaker_switch_enum_ctl_info( + struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo) +{ + static const char *const values[3] = { + "Off", "Main", "Alt" + }; + + return snd_ctl_enum_info(uinfo, 1, 3, values); +} + +static int scarlett2_speaker_switch_enum_ctl_get( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->monitor_other_updated) { + err = scarlett2_update_monitor_other(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.enumerated.item[0] = private->speaker_switching_switch; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +/* when speaker switching gets enabled, switch the main/alt speakers + * to HW volume and disable those controls + */ +static int scarlett2_speaker_switch_enable(struct usb_mixer_interface *mixer) +{ + struct snd_card *card = mixer->chip->card; + struct scarlett2_data *private = mixer->private_data; + int i, err; + + for (i = 0; i < 4; i++) { + int index = line_out_remap(private, i); + + /* switch the main/alt speakers to HW volume */ + if (!private->vol_sw_hw_switch[index]) { + err = scarlett2_sw_hw_change(private->mixer, i, 1); + if (err < 0) + return err; + } + + /* disable the line out SW/HW switch */ + scarlett2_sw_hw_ctl_ro(private, i); + snd_ctl_notify(card, + SNDRV_CTL_EVENT_MASK_VALUE | + SNDRV_CTL_EVENT_MASK_INFO, + &private->sw_hw_ctls[i]->id); + } + + /* when the next monitor-other notify comes in, update the mux + * configuration + */ + private->speaker_switching_switched = 1; + + return 0; +} + +/* when speaker switching gets disabled, reenable the hw/sw controls + * and invalidate the routing + */ +static void scarlett2_speaker_switch_disable(struct usb_mixer_interface *mixer) +{ + struct snd_card *card = mixer->chip->card; + struct scarlett2_data *private = mixer->private_data; + int i; + + /* enable the line out SW/HW switch */ + for (i = 0; i < 4; i++) { + scarlett2_sw_hw_ctl_rw(private, i); + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, + &private->sw_hw_ctls[i]->id); + } + + /* when the next monitor-other notify comes in, update the mux + * configuration + */ + private->speaker_switching_switched = 1; +} + +static int scarlett2_speaker_switch_enum_ctl_put( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->speaker_switching_switch; + val = min(ucontrol->value.enumerated.item[0], 2U); + + if (oval == val) + goto unlock; + + private->speaker_switching_switch = val; + + /* enable/disable speaker switching */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE, + 0, !!val); + if (err < 0) + goto unlock; + + /* if speaker switching is enabled, select main or alt */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH, + 0, val == 2); + if (err < 0) + goto unlock; + + /* update controls if speaker switching gets enabled or disabled */ + if (!oval && val) + err = scarlett2_speaker_switch_enable(mixer); + else if (oval && !val) + scarlett2_speaker_switch_disable(mixer); + + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_speaker_switch_enum_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett2_speaker_switch_enum_ctl_info, + .get = scarlett2_speaker_switch_enum_ctl_get, + .put = scarlett2_speaker_switch_enum_ctl_put, +}; + +static int scarlett2_add_speaker_switch_ctl( + struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + if (!info->has_speaker_switching) + return 0; + + return scarlett2_add_new_ctl( + mixer, &scarlett2_speaker_switch_enum_ctl, + 0, 1, "Speaker Switching Playback Enum", + &private->speaker_switching_ctl); +} + +/*** Talkback and Talkback Map Controls ***/ + +static int scarlett2_talkback_enum_ctl_info( + struct snd_kcontrol *kctl, struct snd_ctl_elem_info *uinfo) +{ + static const char *const values[3] = { + "Disabled", "Off", "On" + }; + + return snd_ctl_enum_info(uinfo, 1, 3, values); +} + +static int scarlett2_talkback_enum_ctl_get( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->monitor_other_updated) { + err = scarlett2_update_monitor_other(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.enumerated.item[0] = private->talkback_switch; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_talkback_enum_ctl_put( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->talkback_switch; + val = min(ucontrol->value.enumerated.item[0], 2U); + + if (oval == val) + goto unlock; + + private->talkback_switch = val; + + /* enable/disable talkback */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_MONITOR_OTHER_ENABLE, + 1, !!val); + if (err < 0) + goto unlock; + + /* if talkback is enabled, select main or alt */ + err = scarlett2_usb_set_config( + mixer, SCARLETT2_CONFIG_MONITOR_OTHER_SWITCH, + 1, val == 2); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_talkback_enum_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett2_talkback_enum_ctl_info, + .get = scarlett2_talkback_enum_ctl_get, + .put = scarlett2_talkback_enum_ctl_put, +}; + +static int scarlett2_talkback_map_ctl_get( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int index = elem->control; + + ucontrol->value.integer.value[0] = private->talkback_map[index]; + + return 0; +} + +static int scarlett2_talkback_map_ctl_put( + struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = + private->info->port_count; + int num_mixes = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN]; + + int index = elem->control; + int oval, val, err = 0, i; + u16 bitmap = 0; + + mutex_lock(&private->data_mutex); + + oval = private->talkback_map[index]; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->talkback_map[index] = val; + + for (i = 0; i < num_mixes; i++) + bitmap |= private->talkback_map[i] << i; + + /* Send updated bitmap to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_TALKBACK_MAP, + 0, bitmap); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_talkback_map_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_talkback_map_ctl_get, + .put = scarlett2_talkback_map_ctl_put, +}; + +static int scarlett2_add_talkback_ctls( + struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int num_mixes = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN]; + int err, i; + char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + + if (!info->has_talkback) + return 0; + + err = scarlett2_add_new_ctl( + mixer, &scarlett2_talkback_enum_ctl, + 0, 1, "Talkback Playback Enum", + &private->talkback_ctl); + if (err < 0) + return err; + + for (i = 0; i < num_mixes; i++) { + snprintf(s, sizeof(s), + "Talkback Mix %c Playback Switch", i + 'A'); + err = scarlett2_add_new_ctl(mixer, &scarlett2_talkback_map_ctl, + i, 1, s, NULL); + if (err < 0) + return err; + } + + return 0; +} + +/*** Dim/Mute Controls ***/ + +static int scarlett2_dim_mute_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->vol_updated) { + err = scarlett2_update_volumes(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.integer.value[0] = private->dim_mute[elem->control]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_dim_mute_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int num_line_out = + port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT]; + + int index = elem->control; + int oval, val, err = 0, i; + + mutex_lock(&private->data_mutex); + + oval = private->dim_mute[index]; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->dim_mute[index] = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_DIM_MUTE, + index, val); + if (err == 0) + err = 1; + + if (index == SCARLETT2_BUTTON_MUTE) + for (i = 0; i < num_line_out; i++) { + int line_index = line_out_remap(private, i); + + if (private->vol_sw_hw_switch[line_index]) { + private->mute_switch[line_index] = val; + snd_ctl_notify(mixer->chip->card, + SNDRV_CTL_EVENT_MASK_VALUE, + &private->mute_ctls[i]->id); + } + } + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_dim_mute_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_dim_mute_ctl_get, + .put = scarlett2_dim_mute_ctl_put +}; + +/*** Create the analogue output controls ***/ + +static int scarlett2_add_line_out_ctls(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int num_line_out = + port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT]; + int err, i; + char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + + /* Add R/O HW volume control */ + if (info->line_out_hw_vol) { + snprintf(s, sizeof(s), "Master HW Playback Volume"); + err = scarlett2_add_new_ctl(mixer, + &scarlett2_master_volume_ctl, + 0, 1, s, &private->master_vol_ctl); + if (err < 0) + return err; + } + + /* Add volume controls */ + for (i = 0; i < num_line_out; i++) { + int index = line_out_remap(private, i); + + /* Fader */ + if (info->line_out_descrs[i]) + snprintf(s, sizeof(s), + "Line %02d (%s) Playback Volume", + i + 1, info->line_out_descrs[i]); + else + snprintf(s, sizeof(s), + "Line %02d Playback Volume", + i + 1); + err = scarlett2_add_new_ctl(mixer, + &scarlett2_line_out_volume_ctl, + i, 1, s, &private->vol_ctls[i]); + if (err < 0) + return err; + + /* Mute Switch */ + snprintf(s, sizeof(s), + "Line %02d Mute Playback Switch", + i + 1); + err = scarlett2_add_new_ctl(mixer, + &scarlett2_mute_ctl, + i, 1, s, + &private->mute_ctls[i]); + if (err < 0) + return err; + + /* Make the fader and mute controls read-only if the + * SW/HW switch is set to HW + */ + if (private->vol_sw_hw_switch[index]) + scarlett2_vol_ctl_set_writable(mixer, i, 0); + + /* SW/HW Switch */ + if (info->line_out_hw_vol) { + snprintf(s, sizeof(s), + "Line Out %02d Volume Control Playback Enum", + i + 1); + err = scarlett2_add_new_ctl(mixer, + &scarlett2_sw_hw_enum_ctl, + i, 1, s, + &private->sw_hw_ctls[i]); + if (err < 0) + return err; + + /* Make the switch read-only if the line is + * involved in speaker switching + */ + if (private->speaker_switching_switch && i < 4) + scarlett2_sw_hw_ctl_ro(private, i); + } + } + + /* Add dim/mute controls */ + if (info->line_out_hw_vol) + for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++) { + err = scarlett2_add_new_ctl( + mixer, &scarlett2_dim_mute_ctl, + i, 1, scarlett2_dim_mute_names[i], + &private->dim_mute_ctls[i]); + if (err < 0) + return err; + } + + return 0; +} + +/*** Create the analogue input controls ***/ + +static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + int err, i; + char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + const char *fmt = "Line In %d %s Capture %s"; + const char *fmt2 = "Line In %d-%d %s Capture %s"; + + /* Add input level (line/inst) controls */ + for (i = 0; i < info->level_input_count; i++) { + snprintf(s, sizeof(s), fmt, i + 1 + info->level_input_first, + "Level", "Enum"); + err = scarlett2_add_new_ctl(mixer, &scarlett2_level_enum_ctl, + i, 1, s, &private->level_ctls[i]); + if (err < 0) + return err; + } + + /* Add input pad controls */ + for (i = 0; i < info->pad_input_count; i++) { + snprintf(s, sizeof(s), fmt, i + 1, "Pad", "Switch"); + err = scarlett2_add_new_ctl(mixer, &scarlett2_pad_ctl, + i, 1, s, &private->pad_ctls[i]); + if (err < 0) + return err; + } + + /* Add input air controls */ + for (i = 0; i < info->air_input_count; i++) { + snprintf(s, sizeof(s), fmt, i + 1, "Air", "Switch"); + err = scarlett2_add_new_ctl(mixer, &scarlett2_air_ctl, + i, 1, s, &private->air_ctls[i]); + if (err < 0) + return err; + } + + /* Add input phantom controls */ + if (info->inputs_per_phantom == 1) { + for (i = 0; i < info->phantom_count; i++) { + snprintf(s, sizeof(s), fmt, i + 1, + "Phantom Power", "Switch"); + err = scarlett2_add_new_ctl( + mixer, &scarlett2_phantom_ctl, + i, 1, s, &private->phantom_ctls[i]); + if (err < 0) + return err; + } + } else if (info->inputs_per_phantom > 1) { + for (i = 0; i < info->phantom_count; i++) { + int from = i * info->inputs_per_phantom + 1; + int to = (i + 1) * info->inputs_per_phantom; + + snprintf(s, sizeof(s), fmt2, from, to, + "Phantom Power", "Switch"); + err = scarlett2_add_new_ctl( + mixer, &scarlett2_phantom_ctl, + i, 1, s, &private->phantom_ctls[i]); + if (err < 0) + return err; + } + } + if (info->phantom_count) { + err = scarlett2_add_new_ctl( + mixer, &scarlett2_phantom_persistence_ctl, 0, 1, + "Phantom Power Persistence Capture Switch", NULL); + if (err < 0) + return err; + } + + return 0; +} + +/*** Mixer Volume Controls ***/ + +static int scarlett2_mixer_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = elem->channels; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = SCARLETT2_MIXER_MAX_VALUE; + uinfo->value.integer.step = 1; + return 0; +} + +static int scarlett2_mixer_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett2_data *private = elem->head.mixer->private_data; + + ucontrol->value.integer.value[0] = private->mix[elem->control]; + return 0; +} + +static int scarlett2_mixer_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int oval, val, num_mixer_in, mix_num, err = 0; + int index = elem->control; + + mutex_lock(&private->data_mutex); + + oval = private->mix[index]; + val = clamp(ucontrol->value.integer.value[0], + 0L, (long)SCARLETT2_MIXER_MAX_VALUE); + num_mixer_in = port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT]; + mix_num = index / num_mixer_in; + + if (oval == val) + goto unlock; + + private->mix[index] = val; + err = scarlett2_usb_set_mix(mixer, mix_num); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const DECLARE_TLV_DB_MINMAX( + db_scale_scarlett2_mixer, + SCARLETT2_MIXER_MIN_DB * 100, + SCARLETT2_MIXER_MAX_DB * 100 +); + +static const struct snd_kcontrol_new scarlett2_mixer_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .name = "", + .info = scarlett2_mixer_ctl_info, + .get = scarlett2_mixer_ctl_get, + .put = scarlett2_mixer_ctl_put, + .private_value = SCARLETT2_MIXER_MAX_DB, /* max value */ + .tlv = { .p = db_scale_scarlett2_mixer } +}; + +static int scarlett2_add_mixer_ctls(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int err, i, j; + int index; + char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + + int num_inputs = + port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_OUT]; + int num_outputs = + port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN]; + + for (i = 0, index = 0; i < num_outputs; i++) + for (j = 0; j < num_inputs; j++, index++) { + snprintf(s, sizeof(s), + "Mix %c Input %02d Playback Volume", + 'A' + i, j + 1); + err = scarlett2_add_new_ctl(mixer, &scarlett2_mixer_ctl, + index, 1, s, NULL); + if (err < 0) + return err; + } + + return 0; +} + +/*** Mux Source Selection Controls ***/ + +static int scarlett2_mux_src_enum_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett2_data *private = elem->head.mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + unsigned int item = uinfo->value.enumerated.item; + int items = private->num_mux_srcs; + int port_type; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = elem->channels; + uinfo->value.enumerated.items = items; + + if (item >= items) + item = uinfo->value.enumerated.item = items - 1; + + for (port_type = 0; + port_type < SCARLETT2_PORT_TYPE_COUNT; + port_type++) { + if (item < port_count[port_type][SCARLETT2_PORT_IN]) { + const struct scarlett2_port *port = + &scarlett2_ports[port_type]; + + sprintf(uinfo->value.enumerated.name, + port->src_descr, item + port->src_num_offset); + return 0; + } + item -= port_count[port_type][SCARLETT2_PORT_IN]; + } + + return -EINVAL; +} + +static int scarlett2_mux_src_enum_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int index = line_out_remap(private, elem->control); + int err = 0; + + mutex_lock(&private->data_mutex); + + if (private->mux_updated) { + err = scarlett2_usb_get_mux(mixer); + if (err < 0) + goto unlock; + } + ucontrol->value.enumerated.item[0] = private->mux[index]; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static int scarlett2_mux_src_enum_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + int index = line_out_remap(private, elem->control); + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->mux[index]; + val = min(ucontrol->value.enumerated.item[0], + private->num_mux_srcs - 1U); + + if (oval == val) + goto unlock; + + private->mux[index] = val; + err = scarlett2_usb_set_mux(mixer); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_mux_src_enum_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = scarlett2_mux_src_enum_ctl_info, + .get = scarlett2_mux_src_enum_ctl_get, + .put = scarlett2_mux_src_enum_ctl_put, +}; + +static int scarlett2_add_mux_enums(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int port_type, channel, i; + + for (i = 0, port_type = 0; + port_type < SCARLETT2_PORT_TYPE_COUNT; + port_type++) { + for (channel = 0; + channel < port_count[port_type][SCARLETT2_PORT_OUT]; + channel++, i++) { + int err; + char s[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + const char *const descr = + scarlett2_ports[port_type].dst_descr; + + snprintf(s, sizeof(s) - 5, descr, channel + 1); + strcat(s, " Enum"); + + err = scarlett2_add_new_ctl(mixer, + &scarlett2_mux_src_enum_ctl, + i, 1, s, + &private->mux_ctls[i]); + if (err < 0) + return err; + } + } + + return 0; +} + +/*** Meter Controls ***/ + +static int scarlett2_meter_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *uinfo) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = elem->channels; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 4095; + uinfo->value.integer.step = 1; + return 0; +} + +static int scarlett2_meter_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + u16 meter_levels[SCARLETT2_MAX_METERS]; + int i, err; + + err = scarlett2_usb_get_meter_levels(elem->head.mixer, elem->channels, + meter_levels); + if (err < 0) + return err; + + for (i = 0; i < elem->channels; i++) + ucontrol->value.integer.value[i] = meter_levels[i]; + + return 0; +} + +static const struct snd_kcontrol_new scarlett2_meter_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_PCM, + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .name = "", + .info = scarlett2_meter_ctl_info, + .get = scarlett2_meter_ctl_get +}; + +static int scarlett2_add_meter_ctl(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + + /* devices without a mixer also don't support reporting levels */ + if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER) + return 0; + + return scarlett2_add_new_ctl(mixer, &scarlett2_meter_ctl, + 0, private->num_mux_dsts, + "Level Meter", NULL); +} + +/*** MSD Controls ***/ + +static int scarlett2_msd_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett2_data *private = elem->head.mixer->private_data; + + ucontrol->value.integer.value[0] = private->msd_switch; + return 0; +} + +static int scarlett2_msd_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->msd_switch; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->msd_switch = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, SCARLETT2_CONFIG_MSD_SWITCH, + 0, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_msd_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_msd_ctl_get, + .put = scarlett2_msd_ctl_put, +}; + +static int scarlett2_add_msd_ctl(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + if (!info->has_msd_mode) + return 0; + + /* If MSD mode is off, hide the switch by default */ + if (!private->msd_switch && !(mixer->chip->setup & SCARLETT2_MSD_ENABLE)) + return 0; + + /* Add MSD control */ + return scarlett2_add_new_ctl(mixer, &scarlett2_msd_ctl, + 0, 1, "MSD Mode Switch", NULL); +} + +/*** Standalone Control ***/ + +static int scarlett2_standalone_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct scarlett2_data *private = elem->head.mixer->private_data; + + ucontrol->value.integer.value[0] = private->standalone_switch; + return 0; +} + +static int scarlett2_standalone_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; + + int oval, val, err = 0; + + mutex_lock(&private->data_mutex); + + oval = private->standalone_switch; + val = !!ucontrol->value.integer.value[0]; + + if (oval == val) + goto unlock; + + private->standalone_switch = val; + + /* Send switch change to the device */ + err = scarlett2_usb_set_config(mixer, + SCARLETT2_CONFIG_STANDALONE_SWITCH, + 0, val); + if (err == 0) + err = 1; + +unlock: + mutex_unlock(&private->data_mutex); + return err; +} + +static const struct snd_kcontrol_new scarlett2_standalone_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "", + .info = snd_ctl_boolean_mono_info, + .get = scarlett2_standalone_ctl_get, + .put = scarlett2_standalone_ctl_put, +}; + +static int scarlett2_add_standalone_ctl(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + + if (private->info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER) + return 0; + + /* Add standalone control */ + return scarlett2_add_new_ctl(mixer, &scarlett2_standalone_ctl, + 0, 1, "Standalone Switch", NULL); +} + +/*** Cleanup/Suspend Callbacks ***/ + +static void scarlett2_private_free(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + + cancel_delayed_work_sync(&private->work); + kfree(private); + mixer->private_data = NULL; +} + +static void scarlett2_private_suspend(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + + if (cancel_delayed_work_sync(&private->work)) + scarlett2_config_save(private->mixer); +} + +/*** Initialisation ***/ + +static void scarlett2_count_mux_io(struct scarlett2_data *private) +{ + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int port_type, srcs = 0, dsts = 0; + + for (port_type = 0; + port_type < SCARLETT2_PORT_TYPE_COUNT; + port_type++) { + srcs += port_count[port_type][SCARLETT2_PORT_IN]; + dsts += port_count[port_type][SCARLETT2_PORT_OUT]; + } + + private->num_mux_srcs = srcs; + private->num_mux_dsts = dsts; +} + +/* Look through the interface descriptors for the Focusrite Control + * interface (bInterfaceClass = 255 Vendor Specific Class) and set + * bInterfaceNumber, bEndpointAddress, wMaxPacketSize, and bInterval + * in private + */ +static int scarlett2_find_fc_interface(struct usb_device *dev, + struct scarlett2_data *private) +{ + struct usb_host_config *config = dev->actconfig; + int i; + + for (i = 0; i < config->desc.bNumInterfaces; i++) { + struct usb_interface *intf = config->interface[i]; + struct usb_interface_descriptor *desc = + &intf->altsetting[0].desc; + struct usb_endpoint_descriptor *epd; + + if (desc->bInterfaceClass != 255) + continue; + + epd = get_endpoint(intf->altsetting, 0); + private->bInterfaceNumber = desc->bInterfaceNumber; + private->bEndpointAddress = epd->bEndpointAddress & + USB_ENDPOINT_NUMBER_MASK; + private->wMaxPacketSize = le16_to_cpu(epd->wMaxPacketSize); + private->bInterval = epd->bInterval; + return 0; + } + + return -EINVAL; +} + +/* Initialise private data */ +static int scarlett2_init_private(struct usb_mixer_interface *mixer, + const struct scarlett2_device_info *info) +{ + struct scarlett2_data *private = + kzalloc(sizeof(struct scarlett2_data), GFP_KERNEL); + + if (!private) + return -ENOMEM; + + mutex_init(&private->usb_mutex); + mutex_init(&private->data_mutex); + INIT_DELAYED_WORK(&private->work, scarlett2_config_save_work); + + mixer->private_data = private; + mixer->private_free = scarlett2_private_free; + mixer->private_suspend = scarlett2_private_suspend; + + private->info = info; + scarlett2_count_mux_io(private); + private->scarlett2_seq = 0; + private->mixer = mixer; + + return scarlett2_find_fc_interface(mixer->chip->dev, private); +} + +/* Cargo cult proprietary initialisation sequence */ +static int scarlett2_usb_init(struct usb_mixer_interface *mixer) +{ + struct usb_device *dev = mixer->chip->dev; + struct scarlett2_data *private = mixer->private_data; + u8 buf[24]; + int err; + + if (usb_pipe_type_check(dev, usb_sndctrlpipe(dev, 0))) + return -EINVAL; + + /* step 0 */ + err = scarlett2_usb_rx(dev, private->bInterfaceNumber, + SCARLETT2_USB_CMD_INIT, buf, sizeof(buf)); + if (err < 0) + return err; + + /* step 1 */ + private->scarlett2_seq = 1; + err = scarlett2_usb(mixer, SCARLETT2_USB_INIT_1, NULL, 0, NULL, 0); + if (err < 0) + return err; + + /* step 2 */ + private->scarlett2_seq = 1; + return scarlett2_usb(mixer, SCARLETT2_USB_INIT_2, NULL, 0, NULL, 84); +} + +/* Read configuration from the interface on start */ +static int scarlett2_read_configs(struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int num_line_out = + port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT]; + int num_mixer_out = + port_count[SCARLETT2_PORT_TYPE_MIX][SCARLETT2_PORT_IN]; + struct scarlett2_usb_volume_status volume_status; + int err, i; + + if (info->has_msd_mode) { + err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_MSD_SWITCH, + 1, &private->msd_switch); + if (err < 0) + return err; + + /* no other controls are created if MSD mode is on */ + if (private->msd_switch) + return 0; + } + + err = scarlett2_update_input_other(mixer); + if (err < 0) + return err; + + err = scarlett2_update_monitor_other(mixer); + if (err < 0) + return err; + + /* the rest of the configuration is for devices with a mixer */ + if (info->config_set == SCARLETT2_CONFIG_SET_NO_MIXER) + return 0; + + err = scarlett2_usb_get_config( + mixer, SCARLETT2_CONFIG_STANDALONE_SWITCH, + 1, &private->standalone_switch); + if (err < 0) + return err; + + err = scarlett2_update_sync(mixer); + if (err < 0) + return err; + + err = scarlett2_usb_get_volume_status(mixer, &volume_status); + if (err < 0) + return err; + + if (info->line_out_hw_vol) + for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++) + private->dim_mute[i] = !!volume_status.dim_mute[i]; + + private->master_vol = clamp( + volume_status.master_vol + SCARLETT2_VOLUME_BIAS, + 0, SCARLETT2_VOLUME_BIAS); + + for (i = 0; i < num_line_out; i++) { + int volume, mute; + + private->vol_sw_hw_switch[i] = + info->line_out_hw_vol + && volume_status.sw_hw_switch[i]; + + volume = private->vol_sw_hw_switch[i] + ? volume_status.master_vol + : volume_status.sw_vol[i]; + volume = clamp(volume + SCARLETT2_VOLUME_BIAS, + 0, SCARLETT2_VOLUME_BIAS); + private->vol[i] = volume; + + mute = private->vol_sw_hw_switch[i] + ? private->dim_mute[SCARLETT2_BUTTON_MUTE] + : volume_status.mute_switch[i]; + private->mute_switch[i] = mute; + } + + for (i = 0; i < num_mixer_out; i++) { + err = scarlett2_usb_get_mix(mixer, i); + if (err < 0) + return err; + } + + return scarlett2_usb_get_mux(mixer); +} + +/* Notify on sync change */ +static void scarlett2_notify_sync( + struct usb_mixer_interface *mixer) +{ + struct scarlett2_data *private = mixer->private_data; + + private->sync_updated = 1; + + snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->sync_ctl->id); +} + +/* Notify on monitor change */ +static void scarlett2_notify_monitor( + struct usb_mixer_interface *mixer) +{ + struct snd_card *card = mixer->chip->card; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int num_line_out = + port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT]; + int i; + + /* if line_out_hw_vol is 0, there are no controls to update */ + if (!info->line_out_hw_vol) + return; + + private->vol_updated = 1; + + snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->master_vol_ctl->id); + + for (i = 0; i < num_line_out; i++) + if (private->vol_sw_hw_switch[line_out_remap(private, i)]) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->vol_ctls[i]->id); +} + +/* Notify on dim/mute change */ +static void scarlett2_notify_dim_mute( + struct usb_mixer_interface *mixer) +{ + struct snd_card *card = mixer->chip->card; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; + int num_line_out = + port_count[SCARLETT2_PORT_TYPE_ANALOGUE][SCARLETT2_PORT_OUT]; + int i; + + private->vol_updated = 1; + + if (!info->line_out_hw_vol) + return; + + for (i = 0; i < SCARLETT2_DIM_MUTE_COUNT; i++) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->dim_mute_ctls[i]->id); + + for (i = 0; i < num_line_out; i++) + if (private->vol_sw_hw_switch[line_out_remap(private, i)]) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->mute_ctls[i]->id); +} + +/* Notify on "input other" change (level/pad/air) */ +static void scarlett2_notify_input_other( + struct usb_mixer_interface *mixer) +{ + struct snd_card *card = mixer->chip->card; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + int i; + + private->input_other_updated = 1; + + for (i = 0; i < info->level_input_count; i++) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->level_ctls[i]->id); + for (i = 0; i < info->pad_input_count; i++) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->pad_ctls[i]->id); + for (i = 0; i < info->air_input_count; i++) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->air_ctls[i]->id); + for (i = 0; i < info->phantom_count; i++) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->phantom_ctls[i]->id); +} + +/* Notify on "monitor other" change (direct monitor, speaker + * switching, talkback) + */ +static void scarlett2_notify_monitor_other( + struct usb_mixer_interface *mixer) +{ + struct snd_card *card = mixer->chip->card; + struct scarlett2_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; + + private->monitor_other_updated = 1; + + if (info->direct_monitor) { + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->direct_monitor_ctl->id); + return; + } + + if (info->has_speaker_switching) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->speaker_switching_ctl->id); + + if (info->has_talkback) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->talkback_ctl->id); + + /* if speaker switching was recently enabled or disabled, + * invalidate the dim/mute and mux enum controls + */ + if (private->speaker_switching_switched) { + int i; + + scarlett2_notify_dim_mute(mixer); + + private->speaker_switching_switched = 0; + private->mux_updated = 1; + + for (i = 0; i < private->num_mux_dsts; i++) + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, + &private->mux_ctls[i]->id); + } +} + +/* Interrupt callback */ +static void scarlett2_notify(struct urb *urb) +{ + struct usb_mixer_interface *mixer = urb->context; + int len = urb->actual_length; + int ustatus = urb->status; + u32 data; + + if (ustatus != 0 || len != 8) + goto requeue; + + data = le32_to_cpu(*(__le32 *)urb->transfer_buffer); + if (data & SCARLETT2_USB_NOTIFY_SYNC) + scarlett2_notify_sync(mixer); + if (data & SCARLETT2_USB_NOTIFY_MONITOR) + scarlett2_notify_monitor(mixer); + if (data & SCARLETT2_USB_NOTIFY_DIM_MUTE) + scarlett2_notify_dim_mute(mixer); + if (data & SCARLETT2_USB_NOTIFY_INPUT_OTHER) + scarlett2_notify_input_other(mixer); + if (data & SCARLETT2_USB_NOTIFY_MONITOR_OTHER) + scarlett2_notify_monitor_other(mixer); + +requeue: + if (ustatus != -ENOENT && + ustatus != -ECONNRESET && + ustatus != -ESHUTDOWN) { + urb->dev = mixer->chip->dev; + usb_submit_urb(urb, GFP_ATOMIC); + } +} + +static int scarlett2_init_notify(struct usb_mixer_interface *mixer) +{ + struct usb_device *dev = mixer->chip->dev; + struct scarlett2_data *private = mixer->private_data; + unsigned int pipe = usb_rcvintpipe(dev, private->bEndpointAddress); + void *transfer_buffer; + + if (mixer->urb) { + usb_audio_err(mixer->chip, + "%s: mixer urb already in use!\n", __func__); + return 0; + } + + if (usb_pipe_type_check(dev, pipe)) + return -EINVAL; + + mixer->urb = usb_alloc_urb(0, GFP_KERNEL); + if (!mixer->urb) + return -ENOMEM; + + transfer_buffer = kmalloc(private->wMaxPacketSize, GFP_KERNEL); + if (!transfer_buffer) + return -ENOMEM; + + usb_fill_int_urb(mixer->urb, dev, pipe, + transfer_buffer, private->wMaxPacketSize, + scarlett2_notify, mixer, private->bInterval); + + return usb_submit_urb(mixer->urb, GFP_KERNEL); +} + +static int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer) +{ + const struct scarlett2_device_info **info = scarlett2_devices; + int err; + + /* Find device in scarlett2_devices */ + while (*info && (*info)->usb_id != mixer->chip->usb_id) + info++; + if (!*info) + return -EINVAL; + + /* Initialise private data */ + err = scarlett2_init_private(mixer, *info); + if (err < 0) + return err; + + /* Send proprietary USB initialisation sequence */ + err = scarlett2_usb_init(mixer); + if (err < 0) + return err; + + /* Read volume levels and controls from the interface */ + err = scarlett2_read_configs(mixer); + if (err < 0) + return err; + + /* Create the MSD control */ + err = scarlett2_add_msd_ctl(mixer); + if (err < 0) + return err; + + /* If MSD mode is enabled, don't create any other controls */ + if (((struct scarlett2_data *)mixer->private_data)->msd_switch) + return 0; + + /* Create the analogue output controls */ + err = scarlett2_add_line_out_ctls(mixer); + if (err < 0) + return err; + + /* Create the analogue input controls */ + err = scarlett2_add_line_in_ctls(mixer); + if (err < 0) + return err; + + /* Create the input, output, and mixer mux input selections */ + err = scarlett2_add_mux_enums(mixer); + if (err < 0) + return err; + + /* Create the matrix mixer controls */ + err = scarlett2_add_mixer_ctls(mixer); + if (err < 0) + return err; + + /* Create the level meter controls */ + err = scarlett2_add_meter_ctl(mixer); + if (err < 0) + return err; + + /* Create the sync control */ + err = scarlett2_add_sync_ctl(mixer); + if (err < 0) + return err; + + /* Create the direct monitor control */ + err = scarlett2_add_direct_monitor_ctl(mixer); + if (err < 0) + return err; + + /* Create the speaker switching control */ + err = scarlett2_add_speaker_switch_ctl(mixer); + if (err < 0) + return err; + + /* Create the talkback controls */ + err = scarlett2_add_talkback_ctls(mixer); + if (err < 0) + return err; + + /* Create the standalone control */ + err = scarlett2_add_standalone_ctl(mixer); + if (err < 0) + return err; + + /* Set up the interrupt polling */ + err = scarlett2_init_notify(mixer); + if (err < 0) + return err; + + return 0; +} + +int snd_scarlett_gen2_init(struct usb_mixer_interface *mixer) +{ + struct snd_usb_audio *chip = mixer->chip; + int err; + + /* only use UAC_VERSION_2 */ + if (!mixer->protocol) + return 0; + + if (!(chip->setup & SCARLETT2_ENABLE)) { + usb_audio_info(chip, + "Focusrite Scarlett Gen 2/3 Mixer Driver disabled; " + "use options snd_usb_audio vid=0x%04x pid=0x%04x " + "device_setup=1 to enable and report any issues " + "to g@b4.vu", + USB_ID_VENDOR(chip->usb_id), + USB_ID_PRODUCT(chip->usb_id)); + return 0; + } + + usb_audio_info(chip, + "Focusrite Scarlett Gen 2/3 Mixer Driver enabled pid=0x%04x", + USB_ID_PRODUCT(chip->usb_id)); + + err = snd_scarlett_gen2_controls_create(mixer); + if (err < 0) + usb_audio_err(mixer->chip, + "Error initialising Scarlett Mixer Driver: %d", + err); + + return err; +} diff --git a/sound/usb/mixer_scarlett_gen2.h b/sound/usb/mixer_scarlett_gen2.h new file mode 100644 index 000000000..668c6b0cb --- /dev/null +++ b/sound/usb/mixer_scarlett_gen2.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USB_MIXER_SCARLETT_GEN2_H +#define __USB_MIXER_SCARLETT_GEN2_H + +int snd_scarlett_gen2_init(struct usb_mixer_interface *mixer); + +#endif /* __USB_MIXER_SCARLETT_GEN2_H */ diff --git a/sound/usb/mixer_us16x08.c b/sound/usb/mixer_us16x08.c new file mode 100644 index 000000000..6eb7d93b3 --- /dev/null +++ b/sound/usb/mixer_us16x08.c @@ -0,0 +1,1414 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Tascam US-16x08 ALSA driver + * + * Copyright (c) 2016 by Detlef Urban (onkel@paraair.de) + */ + +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio-v2.h> + +#include <sound/core.h> +#include <sound/control.h> + +#include "usbaudio.h" +#include "mixer.h" +#include "helper.h" + +#include "mixer_us16x08.h" + +/* USB control message templates */ +static const char route_msg[] = { + 0x61, + 0x02, + 0x03, /* input from master (0x02) or input from computer bus (0x03) */ + 0x62, + 0x02, + 0x01, /* input index (0x01/0x02 eq. left/right) or bus (0x01-0x08) */ + 0x41, + 0x01, + 0x61, + 0x02, + 0x01, + 0x62, + 0x02, + 0x01, /* output index (0x01-0x08) */ + 0x42, + 0x01, + 0x43, + 0x01, + 0x00, + 0x00 +}; + +static const char mix_init_msg1[] = { + 0x71, 0x01, 0x00, 0x00 +}; + +static const char mix_init_msg2[] = { + 0x62, 0x02, 0x00, 0x61, 0x02, 0x04, 0xb1, 0x01, 0x00, 0x00 +}; + +static const char mix_msg_in[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x04, 0x62, 0x02, 0x01, + 0x81, /* 0x06: Controller ID */ + 0x02, /* 0x07: */ + 0x00, /* 0x08: Value of common mixer */ + 0x00, + 0x00 +}; + +static const char mix_msg_out[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x02, 0x62, 0x02, 0x01, + 0x81, /* 0x06: Controller ID */ + 0x02, /* 0x07: */ + 0x00, /* 0x08: Value of common mixer */ + 0x00, + 0x00 +}; + +static const char bypass_msg_out[] = { + 0x45, + 0x02, + 0x01, /* on/off flag */ + 0x00, + 0x00 +}; + +static const char bus_msg_out[] = { + 0x44, + 0x02, + 0x01, /* on/off flag */ + 0x00, + 0x00 +}; + +static const char comp_msg[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x04, 0x62, 0x02, 0x01, + 0x91, + 0x02, + 0xf0, /* 0x08: Threshold db (8) (e0 ... 00) (+-0dB -- -32dB) x-32 */ + 0x92, + 0x02, + 0x0a, /* 0x0b: Ratio (0a,0b,0d,0f,11,14,19,1e,23,28,32,3c,50,a0,ff) */ + 0x93, + 0x02, + 0x02, /* 0x0e: Attack (0x02 ... 0xc0) (2ms ... 200ms) */ + 0x94, + 0x02, + 0x01, /* 0x11: Release (0x01 ... 0x64) (10ms ... 1000ms) x*10 */ + 0x95, + 0x02, + 0x03, /* 0x14: gain (0 ... 20) (0dB .. 20dB) */ + 0x96, + 0x02, + 0x01, + 0x97, + 0x02, + 0x01, /* 0x1a: main Comp switch (0 ... 1) (off ... on)) */ + 0x00, + 0x00 +}; + +static const char eqs_msq[] = { + /* default message head, equal to all mixers */ + 0x61, 0x02, 0x04, 0x62, 0x02, 0x01, + 0x51, /* 0x06: Controller ID */ + 0x02, + 0x04, /* 0x08: EQ set num (0x01..0x04) (LOW, LOWMID, HIGHMID, HIGH)) */ + 0x52, + 0x02, + 0x0c, /* 0x0b: value dB (0 ... 12) (-12db .. +12db) x-6 */ + 0x53, + 0x02, + 0x0f, /* 0x0e: value freq (32-47) (1.7kHz..18kHz) */ + 0x54, + 0x02, + 0x02, /* 0x11: band width (0-6) (Q16-Q0.25) 2^x/4 (EQ xxMID only) */ + 0x55, + 0x02, + 0x01, /* 0x14: main EQ switch (0 ... 1) (off ... on)) */ + 0x00, + 0x00 +}; + +/* compressor ratio map */ +static const char ratio_map[] = { + 0x0a, 0x0b, 0x0d, 0x0f, 0x11, 0x14, 0x19, 0x1e, + 0x23, 0x28, 0x32, 0x3c, 0x50, 0xa0, 0xff +}; + +/* route enumeration names */ +static const char *const route_names[] = { + "Master Left", "Master Right", "Output 1", "Output 2", "Output 3", + "Output 4", "Output 5", "Output 6", "Output 7", "Output 8", +}; + +static int snd_us16x08_recv_urb(struct snd_usb_audio *chip, + unsigned char *buf, int size) +{ + + mutex_lock(&chip->mutex); + snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), + SND_US16X08_URB_METER_REQUEST, + SND_US16X08_URB_METER_REQUESTTYPE, 0, 0, buf, size); + mutex_unlock(&chip->mutex); + return 0; +} + +/* wrapper function to send prepared URB buffer to usb device. Return an error + * code if something went wrong + */ +static int snd_us16x08_send_urb(struct snd_usb_audio *chip, char *buf, int size) +{ + return snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), + SND_US16X08_URB_REQUEST, SND_US16X08_URB_REQUESTTYPE, + 0, 0, buf, size); +} + +static int snd_us16x08_route_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + return snd_ctl_enum_info(uinfo, 1, 10, route_names); +} + +static int snd_us16x08_route_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + int index = ucontrol->id.index; + + /* route has no bias */ + ucontrol->value.enumerated.item[0] = elem->cache_val[index]; + + return 0; +} + +static int snd_us16x08_route_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + int index = ucontrol->id.index; + char buf[sizeof(route_msg)]; + int val, val_org, err; + + /* get the new value (no bias for routes) */ + val = ucontrol->value.enumerated.item[0]; + + /* sanity check */ + if (val < 0 || val > 9) + return -EINVAL; + + /* prepare the message buffer from template */ + memcpy(buf, route_msg, sizeof(route_msg)); + + if (val < 2) { + /* input comes from a master channel */ + val_org = val; + buf[2] = 0x02; + } else { + /* input comes from a computer channel */ + buf[2] = 0x03; + val_org = val - 2; + } + + /* place new route selection in URB message */ + buf[5] = (unsigned char) (val_org & 0x0f) + 1; + /* place route selector in URB message */ + buf[13] = index + 1; + + err = snd_us16x08_send_urb(chip, buf, sizeof(route_msg)); + + if (err > 0) { + elem->cached |= 1 << index; + elem->cache_val[index] = val; + } else { + usb_audio_dbg(chip, "Failed to set routing, err:%d\n", err); + } + + return err > 0 ? 1 : 0; +} + +static int snd_us16x08_master_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->count = 1; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol); + uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol); + uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol); + return 0; +} + +static int snd_us16x08_master_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + int index = ucontrol->id.index; + + ucontrol->value.integer.value[0] = elem->cache_val[index]; + + return 0; +} + +static int snd_us16x08_master_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + char buf[sizeof(mix_msg_out)]; + int val, err; + int index = ucontrol->id.index; + + /* new control value incl. bias*/ + val = ucontrol->value.integer.value[0]; + + /* sanity check */ + if (val < SND_US16X08_KCMIN(kcontrol) + || val > SND_US16X08_KCMAX(kcontrol)) + return -EINVAL; + + /* prepare the message buffer from template */ + memcpy(buf, mix_msg_out, sizeof(mix_msg_out)); + + buf[8] = val - SND_US16X08_KCBIAS(kcontrol); + buf[6] = elem->head.id; + + /* place channel selector in URB message */ + buf[5] = index + 1; + err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out)); + + if (err > 0) { + elem->cached |= 1 << index; + elem->cache_val[index] = val; + } else { + usb_audio_dbg(chip, "Failed to set master, err:%d\n", err); + } + + return err > 0 ? 1 : 0; +} + +static int snd_us16x08_bus_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + char buf[sizeof(mix_msg_out)]; + int val, err = 0; + + val = ucontrol->value.integer.value[0]; + + /* prepare the message buffer from template */ + switch (elem->head.id) { + case SND_US16X08_ID_BYPASS: + memcpy(buf, bypass_msg_out, sizeof(bypass_msg_out)); + buf[2] = val; + err = snd_us16x08_send_urb(chip, buf, sizeof(bypass_msg_out)); + break; + case SND_US16X08_ID_BUSS_OUT: + memcpy(buf, bus_msg_out, sizeof(bus_msg_out)); + buf[2] = val; + err = snd_us16x08_send_urb(chip, buf, sizeof(bus_msg_out)); + break; + case SND_US16X08_ID_MUTE: + memcpy(buf, mix_msg_out, sizeof(mix_msg_out)); + buf[8] = val; + buf[6] = elem->head.id; + buf[5] = 1; + err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_out)); + break; + } + + if (err > 0) { + elem->cached |= 1; + elem->cache_val[0] = val; + } else { + usb_audio_dbg(chip, "Failed to set bus parameter, err:%d\n", err); + } + + return err > 0 ? 1 : 0; +} + +static int snd_us16x08_bus_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + + switch (elem->head.id) { + case SND_US16X08_ID_BUSS_OUT: + ucontrol->value.integer.value[0] = elem->cache_val[0]; + break; + case SND_US16X08_ID_BYPASS: + ucontrol->value.integer.value[0] = elem->cache_val[0]; + break; + case SND_US16X08_ID_MUTE: + ucontrol->value.integer.value[0] = elem->cache_val[0]; + break; + } + + return 0; +} + +/* gets a current mixer value from common store */ +static int snd_us16x08_channel_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + int index = ucontrol->id.index; + + ucontrol->value.integer.value[0] = elem->cache_val[index]; + + return 0; +} + +static int snd_us16x08_channel_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + char buf[sizeof(mix_msg_in)]; + int val, err; + int index = ucontrol->id.index; + + val = ucontrol->value.integer.value[0]; + + /* sanity check */ + if (val < SND_US16X08_KCMIN(kcontrol) + || val > SND_US16X08_KCMAX(kcontrol)) + return -EINVAL; + + /* prepare URB message from template */ + memcpy(buf, mix_msg_in, sizeof(mix_msg_in)); + + /* add the bias to the new value */ + buf[8] = val - SND_US16X08_KCBIAS(kcontrol); + buf[6] = elem->head.id; + buf[5] = index + 1; + + err = snd_us16x08_send_urb(chip, buf, sizeof(mix_msg_in)); + + if (err > 0) { + elem->cached |= 1 << index; + elem->cache_val[index] = val; + } else { + usb_audio_dbg(chip, "Failed to set channel, err:%d\n", err); + } + + return err > 0 ? 1 : 0; +} + +static int snd_us16x08_mix_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->count = 1; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.max = SND_US16X08_KCMAX(kcontrol); + uinfo->value.integer.min = SND_US16X08_KCMIN(kcontrol); + uinfo->value.integer.step = SND_US16X08_KCSTEP(kcontrol); + return 0; +} + +static int snd_us16x08_comp_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_comp_store *store = elem->private_data; + int index = ucontrol->id.index; + int val_idx = COMP_STORE_IDX(elem->head.id); + + ucontrol->value.integer.value[0] = store->val[val_idx][index]; + + return 0; +} + +static int snd_us16x08_comp_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_comp_store *store = elem->private_data; + int index = ucontrol->id.index; + char buf[sizeof(comp_msg)]; + int val_idx, val; + int err; + + val = ucontrol->value.integer.value[0]; + + /* sanity check */ + if (val < SND_US16X08_KCMIN(kcontrol) + || val > SND_US16X08_KCMAX(kcontrol)) + return -EINVAL; + + /* new control value incl. bias*/ + val_idx = elem->head.id - SND_US16X08_ID_COMP_BASE; + + store->val[val_idx][index] = ucontrol->value.integer.value[0]; + + /* prepare compressor URB message from template */ + memcpy(buf, comp_msg, sizeof(comp_msg)); + + /* place comp values in message buffer watch bias! */ + buf[8] = store->val[ + COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][index] + - SND_US16X08_COMP_THRESHOLD_BIAS; + buf[11] = ratio_map[store->val[ + COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][index]]; + buf[14] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][index] + + SND_US16X08_COMP_ATTACK_BIAS; + buf[17] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][index] + + SND_US16X08_COMP_RELEASE_BIAS; + buf[20] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][index]; + buf[26] = store->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][index]; + + /* place channel selector in message buffer */ + buf[5] = index + 1; + + err = snd_us16x08_send_urb(chip, buf, sizeof(comp_msg)); + + if (err > 0) { + elem->cached |= 1 << index; + elem->cache_val[index] = val; + } else { + usb_audio_dbg(chip, "Failed to set compressor, err:%d\n", err); + } + + return 1; +} + +static int snd_us16x08_eqswitch_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val; + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_eq_store *store = elem->private_data; + int index = ucontrol->id.index; + + /* get low switch from cache is enough, cause all bands are together */ + val = store->val[EQ_STORE_BAND_IDX(elem->head.id)] + [EQ_STORE_PARAM_IDX(elem->head.id)][index]; + ucontrol->value.integer.value[0] = val; + + return 0; +} + +static int snd_us16x08_eqswitch_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_eq_store *store = elem->private_data; + int index = ucontrol->id.index; + char buf[sizeof(eqs_msq)]; + int val, err = 0; + int b_idx; + + /* new control value incl. bias*/ + val = ucontrol->value.integer.value[0] + SND_US16X08_KCBIAS(kcontrol); + + /* prepare URB message from EQ template */ + memcpy(buf, eqs_msq, sizeof(eqs_msq)); + + /* place channel index in URB message */ + buf[5] = index + 1; + for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) { + /* all four EQ bands have to be enabled/disabled in once */ + buf[20] = val; + buf[17] = store->val[b_idx][2][index]; + buf[14] = store->val[b_idx][1][index]; + buf[11] = store->val[b_idx][0][index]; + buf[8] = b_idx + 1; + err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); + if (err < 0) + break; + store->val[b_idx][3][index] = val; + msleep(15); + } + + if (err > 0) { + elem->cached |= 1 << index; + elem->cache_val[index] = val; + } else { + usb_audio_dbg(chip, "Failed to set eq switch, err:%d\n", err); + } + + return 1; +} + +static int snd_us16x08_eq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int val; + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_eq_store *store = elem->private_data; + int index = ucontrol->id.index; + int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1; + int p_idx = EQ_STORE_PARAM_IDX(elem->head.id); + + val = store->val[b_idx][p_idx][index]; + + ucontrol->value.integer.value[0] = val; + + return 0; +} + +static int snd_us16x08_eq_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_eq_store *store = elem->private_data; + int index = ucontrol->id.index; + char buf[sizeof(eqs_msq)]; + int val, err; + int b_idx = EQ_STORE_BAND_IDX(elem->head.id) - 1; + int p_idx = EQ_STORE_PARAM_IDX(elem->head.id); + + val = ucontrol->value.integer.value[0]; + + /* sanity check */ + if (val < SND_US16X08_KCMIN(kcontrol) + || val > SND_US16X08_KCMAX(kcontrol)) + return -EINVAL; + + /* copy URB buffer from EQ template */ + memcpy(buf, eqs_msq, sizeof(eqs_msq)); + + store->val[b_idx][p_idx][index] = val; + buf[20] = store->val[b_idx][3][index]; + buf[17] = store->val[b_idx][2][index]; + buf[14] = store->val[b_idx][1][index]; + buf[11] = store->val[b_idx][0][index]; + + /* place channel index in URB buffer */ + buf[5] = index + 1; + + /* place EQ band in URB buffer */ + buf[8] = b_idx + 1; + + err = snd_us16x08_send_urb(chip, buf, sizeof(eqs_msq)); + + if (err > 0) { + /* store new value in EQ band cache */ + elem->cached |= 1 << index; + elem->cache_val[index] = val; + } else { + usb_audio_dbg(chip, "Failed to set eq param, err:%d\n", err); + } + + return 1; +} + +static int snd_us16x08_meter_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->count = 34; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->value.integer.max = 0x7FFF; + uinfo->value.integer.min = 0; + + return 0; +} + +/* calculate compressor index for reduction level request */ +static int snd_get_meter_comp_index(struct snd_us16x08_meter_store *store) +{ + int ret; + + /* any channel active */ + if (store->comp_active_index) { + /* check for stereo link */ + if (store->comp_active_index & 0x20) { + /* reset comp_index to left channel*/ + if (store->comp_index - + store->comp_active_index > 1) + store->comp_index = + store->comp_active_index; + + ret = store->comp_index++ & 0x1F; + } else { + /* no stereo link */ + ret = store->comp_active_index; + } + } else { + /* skip channels with no compressor active */ + while (store->comp_index <= SND_US16X08_MAX_CHANNELS + && !store->comp_store->val[ + COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)] + [store->comp_index - 1]) { + store->comp_index++; + } + ret = store->comp_index++; + if (store->comp_index > SND_US16X08_MAX_CHANNELS) + store->comp_index = 1; + } + return ret; +} + +/* retrieve the meter level values from URB message */ +static void get_meter_levels_from_urb(int s, + struct snd_us16x08_meter_store *store, + u8 *meter_urb) +{ + int val = MUC2(meter_urb, s) + (MUC3(meter_urb, s) << 8); + + if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 && + MUA2(meter_urb, s) == 0x04 && MUB0(meter_urb, s) == 0x62) { + if (MUC0(meter_urb, s) == 0x72) + store->meter_level[MUB2(meter_urb, s) - 1] = val; + if (MUC0(meter_urb, s) == 0xb2) + store->comp_level[MUB2(meter_urb, s) - 1] = val; + } + if (MUA0(meter_urb, s) == 0x61 && MUA1(meter_urb, s) == 0x02 && + MUA2(meter_urb, s) == 0x02 && MUB0(meter_urb, s) == 0x62) + store->master_level[MUB2(meter_urb, s) - 1] = val; +} + +/* Function to retrieve current meter values from the device. + * + * The device needs to be polled for meter values with an initial + * requests. It will return with a sequence of different meter value + * packages. The first request (case 0:) initiate this meter response sequence. + * After the third response, an additional request can be placed, + * to retrieve compressor reduction level value for given channel. This round + * trip channel selector will skip all inactive compressors. + * A mixer can interrupt this round-trip by selecting one ore two (stereo-link) + * specific channels. + */ +static int snd_us16x08_meter_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int i, set; + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_usb_audio *chip = elem->head.mixer->chip; + struct snd_us16x08_meter_store *store = elem->private_data; + u8 meter_urb[64]; + + switch (kcontrol->private_value) { + case 0: { + char tmp[sizeof(mix_init_msg1)]; + + memcpy(tmp, mix_init_msg1, sizeof(mix_init_msg1)); + snd_us16x08_send_urb(chip, tmp, 4); + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value++; + break; + } + case 1: + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value++; + break; + case 2: + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value++; + break; + case 3: { + char tmp[sizeof(mix_init_msg2)]; + + memcpy(tmp, mix_init_msg2, sizeof(mix_init_msg2)); + tmp[2] = snd_get_meter_comp_index(store); + snd_us16x08_send_urb(chip, tmp, 10); + snd_us16x08_recv_urb(chip, meter_urb, + sizeof(meter_urb)); + kcontrol->private_value = 0; + break; + } + } + + for (set = 0; set < 6; set++) + get_meter_levels_from_urb(set, store, meter_urb); + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { + ucontrol->value.integer.value[i] = + store ? store->meter_level[i] : 0; + } + + ucontrol->value.integer.value[i++] = store ? store->master_level[0] : 0; + ucontrol->value.integer.value[i++] = store ? store->master_level[1] : 0; + + for (i = 2; i < SND_US16X08_MAX_CHANNELS + 2; i++) + ucontrol->value.integer.value[i + SND_US16X08_MAX_CHANNELS] = + store ? store->comp_level[i - 2] : 0; + + return 1; +} + +static int snd_us16x08_meter_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct usb_mixer_elem_info *elem = kcontrol->private_data; + struct snd_us16x08_meter_store *store = elem->private_data; + int val; + + val = ucontrol->value.integer.value[0]; + + /* sanity check */ + if (val < 0 || val >= SND_US16X08_MAX_CHANNELS) + return -EINVAL; + + store->comp_active_index = val; + store->comp_index = val; + + return 1; +} + +static const struct snd_kcontrol_new snd_us16x08_ch_boolean_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_channel_get, + .put = snd_us16x08_channel_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static const struct snd_kcontrol_new snd_us16x08_ch_int_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_channel_get, + .put = snd_us16x08_channel_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133) +}; + +static const struct snd_kcontrol_new snd_us16x08_pan_int_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_channel_get, + .put = snd_us16x08_channel_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 255) +}; + +static const struct snd_kcontrol_new snd_us16x08_master_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 1, + .info = snd_us16x08_master_info, + .get = snd_us16x08_master_get, + .put = snd_us16x08_master_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_FADER_BIAS, 1, 0, 133) +}; + +static const struct snd_kcontrol_new snd_us16x08_route_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 8, + .info = snd_us16x08_route_info, + .get = snd_us16x08_route_get, + .put = snd_us16x08_route_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 9) +}; + +static const struct snd_kcontrol_new snd_us16x08_bus_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 1, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_bus_get, + .put = snd_us16x08_bus_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static const struct snd_kcontrol_new snd_us16x08_compswitch_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static const struct snd_kcontrol_new snd_us16x08_comp_threshold_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_COMP_THRESHOLD_BIAS, 1, + 0, 0x20) +}; + +static const struct snd_kcontrol_new snd_us16x08_comp_ratio_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, + sizeof(ratio_map) - 1), /*max*/ +}; + +static const struct snd_kcontrol_new snd_us16x08_comp_gain_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x14) +}; + +static const struct snd_kcontrol_new snd_us16x08_comp_attack_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = + SND_US16X08_KCSET(SND_US16X08_COMP_ATTACK_BIAS, 1, 0, 0xc6), +}; + +static const struct snd_kcontrol_new snd_us16x08_comp_release_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_comp_get, + .put = snd_us16x08_comp_put, + .private_value = + SND_US16X08_KCSET(SND_US16X08_COMP_RELEASE_BIAS, 1, 0, 0x63), +}; + +static const struct snd_kcontrol_new snd_us16x08_eq_gain_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 24), +}; + +static const struct snd_kcontrol_new snd_us16x08_eq_low_freq_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x1F), +}; + +static const struct snd_kcontrol_new snd_us16x08_eq_mid_freq_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x3F) +}; + +static const struct snd_kcontrol_new snd_us16x08_eq_mid_width_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 0x06) +}; + +static const struct snd_kcontrol_new snd_us16x08_eq_high_freq_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_mix_info, + .get = snd_us16x08_eq_get, + .put = snd_us16x08_eq_put, + .private_value = + SND_US16X08_KCSET(SND_US16X08_EQ_HIGHFREQ_BIAS, 1, 0, 0x1F) +}; + +static const struct snd_kcontrol_new snd_us16x08_eq_switch_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 16, + .info = snd_us16x08_switch_info, + .get = snd_us16x08_eqswitch_get, + .put = snd_us16x08_eqswitch_put, + .private_value = SND_US16X08_KCSET(SND_US16X08_NO_BIAS, 1, 0, 1) +}; + +static const struct snd_kcontrol_new snd_us16x08_meter_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .count = 1, + .info = snd_us16x08_meter_info, + .get = snd_us16x08_meter_get, + .put = snd_us16x08_meter_put +}; + +/* control store preparation */ + +/* setup compressor store and assign default value */ +static struct snd_us16x08_comp_store *snd_us16x08_create_comp_store(void) +{ + int i; + struct snd_us16x08_comp_store *tmp; + + tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); + if (!tmp) + return NULL; + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { + tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_THRESHOLD)][i] + = 0x20; + tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RATIO)][i] = 0x00; + tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_GAIN)][i] = 0x00; + tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_SWITCH)][i] = 0x00; + tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_ATTACK)][i] = 0x00; + tmp->val[COMP_STORE_IDX(SND_US16X08_ID_COMP_RELEASE)][i] = 0x00; + } + return tmp; +} + +/* setup EQ store and assign default values */ +static struct snd_us16x08_eq_store *snd_us16x08_create_eq_store(void) +{ + int i, b_idx; + struct snd_us16x08_eq_store *tmp; + + tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); + if (!tmp) + return NULL; + + for (i = 0; i < SND_US16X08_MAX_CHANNELS; i++) { + for (b_idx = 0; b_idx < SND_US16X08_ID_EQ_BAND_COUNT; b_idx++) { + tmp->val[b_idx][0][i] = 0x0c; + tmp->val[b_idx][3][i] = 0x00; + switch (b_idx) { + case 0: /* EQ Low */ + tmp->val[b_idx][1][i] = 0x05; + tmp->val[b_idx][2][i] = 0xff; + break; + case 1: /* EQ Mid low */ + tmp->val[b_idx][1][i] = 0x0e; + tmp->val[b_idx][2][i] = 0x02; + break; + case 2: /* EQ Mid High */ + tmp->val[b_idx][1][i] = 0x1b; + tmp->val[b_idx][2][i] = 0x02; + break; + case 3: /* EQ High */ + tmp->val[b_idx][1][i] = 0x2f + - SND_US16X08_EQ_HIGHFREQ_BIAS; + tmp->val[b_idx][2][i] = 0xff; + break; + } + } + } + return tmp; +} + +static struct snd_us16x08_meter_store *snd_us16x08_create_meter_store(void) +{ + struct snd_us16x08_meter_store *tmp; + + tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); + if (!tmp) + return NULL; + tmp->comp_index = 1; + tmp->comp_active_index = 0; + return tmp; +} + +/* release elem->private_free as well; called only once for each *_store */ +static void elem_private_free(struct snd_kcontrol *kctl) +{ + struct usb_mixer_elem_info *elem = kctl->private_data; + + if (elem) + kfree(elem->private_data); + kfree(elem); + kctl->private_data = NULL; +} + +static int add_new_ctl(struct usb_mixer_interface *mixer, + const struct snd_kcontrol_new *ncontrol, + int index, int val_type, int channels, + const char *name, void *opt, + bool do_private_free, + struct usb_mixer_elem_info **elem_ret) +{ + struct snd_kcontrol *kctl; + struct usb_mixer_elem_info *elem; + int err; + + usb_audio_dbg(mixer->chip, "us16x08 add mixer %s\n", name); + + elem = kzalloc(sizeof(*elem), GFP_KERNEL); + if (!elem) + return -ENOMEM; + + elem->head.mixer = mixer; + elem->head.resume = NULL; + elem->control = 0; + elem->idx_off = 0; + elem->head.id = index; + elem->val_type = val_type; + elem->channels = channels; + elem->private_data = opt; + + kctl = snd_ctl_new1(ncontrol, elem); + if (!kctl) { + kfree(elem); + return -ENOMEM; + } + + if (do_private_free) + kctl->private_free = elem_private_free; + else + kctl->private_free = snd_usb_mixer_elem_free; + + strscpy(kctl->id.name, name, sizeof(kctl->id.name)); + + err = snd_usb_mixer_add_control(&elem->head, kctl); + if (err < 0) + return err; + + if (elem_ret) + *elem_ret = elem; + + return 0; +} + +/* table of EQ controls */ +static const struct snd_us16x08_control_params eq_controls[] = { + { /* EQ switch */ + .kcontrol_new = &snd_us16x08_eq_switch_ctl, + .control_id = SND_US16X08_ID_EQENABLE, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "EQ Switch", + }, + { /* EQ low gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQLOWLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ Low Volume", + }, + { /* EQ low freq */ + .kcontrol_new = &snd_us16x08_eq_low_freq_ctl, + .control_id = SND_US16X08_ID_EQLOWFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ Low Frequency", + }, + { /* EQ mid low gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQLOWMIDLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ MidLow Volume", + }, + { /* EQ mid low freq */ + .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl, + .control_id = SND_US16X08_ID_EQLOWMIDFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ MidLow Frequency", + }, + { /* EQ mid low Q */ + .kcontrol_new = &snd_us16x08_eq_mid_width_ctl, + .control_id = SND_US16X08_ID_EQLOWMIDWIDTH, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ MidLow Q", + }, + { /* EQ mid high gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQHIGHMIDLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ MidHigh Volume", + }, + { /* EQ mid high freq */ + .kcontrol_new = &snd_us16x08_eq_mid_freq_ctl, + .control_id = SND_US16X08_ID_EQHIGHMIDFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ MidHigh Frequency", + }, + { /* EQ mid high Q */ + .kcontrol_new = &snd_us16x08_eq_mid_width_ctl, + .control_id = SND_US16X08_ID_EQHIGHMIDWIDTH, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ MidHigh Q", + }, + { /* EQ high gain */ + .kcontrol_new = &snd_us16x08_eq_gain_ctl, + .control_id = SND_US16X08_ID_EQHIGHLEVEL, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ High Volume", + }, + { /* EQ low freq */ + .kcontrol_new = &snd_us16x08_eq_high_freq_ctl, + .control_id = SND_US16X08_ID_EQHIGHFREQ, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "EQ High Frequency", + }, +}; + +/* table of compressor controls */ +static const struct snd_us16x08_control_params comp_controls[] = { + { /* Comp enable */ + .kcontrol_new = &snd_us16x08_compswitch_ctl, + .control_id = SND_US16X08_ID_COMP_SWITCH, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "Compressor Switch", + }, + { /* Comp threshold */ + .kcontrol_new = &snd_us16x08_comp_threshold_ctl, + .control_id = SND_US16X08_ID_COMP_THRESHOLD, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Compressor Threshold Volume", + }, + { /* Comp ratio */ + .kcontrol_new = &snd_us16x08_comp_ratio_ctl, + .control_id = SND_US16X08_ID_COMP_RATIO, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Compressor Ratio", + }, + { /* Comp attack */ + .kcontrol_new = &snd_us16x08_comp_attack_ctl, + .control_id = SND_US16X08_ID_COMP_ATTACK, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Compressor Attack", + }, + { /* Comp release */ + .kcontrol_new = &snd_us16x08_comp_release_ctl, + .control_id = SND_US16X08_ID_COMP_RELEASE, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Compressor Release", + }, + { /* Comp gain */ + .kcontrol_new = &snd_us16x08_comp_gain_ctl, + .control_id = SND_US16X08_ID_COMP_GAIN, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Compressor Volume", + }, +}; + +/* table of channel controls */ +static const struct snd_us16x08_control_params channel_controls[] = { + { /* Phase */ + .kcontrol_new = &snd_us16x08_ch_boolean_ctl, + .control_id = SND_US16X08_ID_PHASE, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "Phase Switch", + .default_val = 0 + }, + { /* Fader */ + .kcontrol_new = &snd_us16x08_ch_int_ctl, + .control_id = SND_US16X08_ID_FADER, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Line Volume", + .default_val = 127 + }, + { /* Mute */ + .kcontrol_new = &snd_us16x08_ch_boolean_ctl, + .control_id = SND_US16X08_ID_MUTE, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "Mute Switch", + .default_val = 0 + }, + { /* Pan */ + .kcontrol_new = &snd_us16x08_pan_int_ctl, + .control_id = SND_US16X08_ID_PAN, + .type = USB_MIXER_U16, + .num_channels = 16, + .name = "Pan Left-Right Volume", + .default_val = 127 + }, +}; + +/* table of master controls */ +static const struct snd_us16x08_control_params master_controls[] = { + { /* Master */ + .kcontrol_new = &snd_us16x08_master_ctl, + .control_id = SND_US16X08_ID_FADER, + .type = USB_MIXER_U8, + .num_channels = 16, + .name = "Master Volume", + .default_val = 127 + }, + { /* Bypass */ + .kcontrol_new = &snd_us16x08_bus_ctl, + .control_id = SND_US16X08_ID_BYPASS, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "DSP Bypass Switch", + .default_val = 0 + }, + { /* Buss out */ + .kcontrol_new = &snd_us16x08_bus_ctl, + .control_id = SND_US16X08_ID_BUSS_OUT, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "Buss Out Switch", + .default_val = 0 + }, + { /* Master mute */ + .kcontrol_new = &snd_us16x08_bus_ctl, + .control_id = SND_US16X08_ID_MUTE, + .type = USB_MIXER_BOOLEAN, + .num_channels = 16, + .name = "Master Mute Switch", + .default_val = 0 + }, + +}; + +int snd_us16x08_controls_create(struct usb_mixer_interface *mixer) +{ + int i, j; + int err; + struct usb_mixer_elem_info *elem; + struct snd_us16x08_comp_store *comp_store; + struct snd_us16x08_meter_store *meter_store; + struct snd_us16x08_eq_store *eq_store; + + /* just check for non-MIDI interface */ + if (mixer->hostif->desc.bInterfaceNumber == 3) { + + /* add routing control */ + err = add_new_ctl(mixer, &snd_us16x08_route_ctl, + SND_US16X08_ID_ROUTE, USB_MIXER_U8, 8, "Line Out Route", + NULL, false, &elem); + if (err < 0) { + usb_audio_dbg(mixer->chip, + "Failed to create route control, err:%d\n", + err); + return err; + } + for (i = 0; i < 8; i++) + elem->cache_val[i] = i < 2 ? i : i + 2; + elem->cached = 0xff; + + /* create compressor mixer elements */ + comp_store = snd_us16x08_create_comp_store(); + if (!comp_store) + return -ENOMEM; + + /* add master controls */ + for (i = 0; i < ARRAY_SIZE(master_controls); i++) { + + err = add_new_ctl(mixer, + master_controls[i].kcontrol_new, + master_controls[i].control_id, + master_controls[i].type, + master_controls[i].num_channels, + master_controls[i].name, + comp_store, + i == 0, /* release comp_store only once */ + &elem); + if (err < 0) + return err; + elem->cache_val[0] = master_controls[i].default_val; + elem->cached = 1; + } + + /* add channel controls */ + for (i = 0; i < ARRAY_SIZE(channel_controls); i++) { + + err = add_new_ctl(mixer, + channel_controls[i].kcontrol_new, + channel_controls[i].control_id, + channel_controls[i].type, + channel_controls[i].num_channels, + channel_controls[i].name, + comp_store, + false, &elem); + if (err < 0) + return err; + for (j = 0; j < SND_US16X08_MAX_CHANNELS; j++) { + elem->cache_val[j] = + channel_controls[i].default_val; + } + elem->cached = 0xffff; + } + + /* create eq store */ + eq_store = snd_us16x08_create_eq_store(); + if (!eq_store) + return -ENOMEM; + + /* add EQ controls */ + for (i = 0; i < ARRAY_SIZE(eq_controls); i++) { + + err = add_new_ctl(mixer, + eq_controls[i].kcontrol_new, + eq_controls[i].control_id, + eq_controls[i].type, + eq_controls[i].num_channels, + eq_controls[i].name, + eq_store, + i == 0, /* release eq_store only once */ + NULL); + if (err < 0) + return err; + } + + /* add compressor controls */ + for (i = 0; i < ARRAY_SIZE(comp_controls); i++) { + + err = add_new_ctl(mixer, + comp_controls[i].kcontrol_new, + comp_controls[i].control_id, + comp_controls[i].type, + comp_controls[i].num_channels, + comp_controls[i].name, + comp_store, + false, NULL); + if (err < 0) + return err; + } + + /* create meters store */ + meter_store = snd_us16x08_create_meter_store(); + if (!meter_store) + return -ENOMEM; + + /* meter function 'get' must access to compressor store + * so place a reference here + */ + meter_store->comp_store = comp_store; + err = add_new_ctl(mixer, &snd_us16x08_meter_ctl, + SND_US16X08_ID_METER, USB_MIXER_U16, 0, "Level Meter", + meter_store, true, NULL); + if (err < 0) + return err; + } + + return 0; +} + diff --git a/sound/usb/mixer_us16x08.h b/sound/usb/mixer_us16x08.h new file mode 100644 index 000000000..7b8583dd3 --- /dev/null +++ b/sound/usb/mixer_us16x08.h @@ -0,0 +1,122 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USB_MIXER_US16X08_H +#define __USB_MIXER_US16X08_H + +#define SND_US16X08_MAX_CHANNELS 16 + +/* define some bias, cause some alsa-mixers wont work with + * negative ranges or if mixer-min != 0 + */ +#define SND_US16X08_NO_BIAS 0 +#define SND_US16X08_FADER_BIAS 127 +#define SND_US16X08_EQ_HIGHFREQ_BIAS 0x20 +#define SND_US16X08_COMP_THRESHOLD_BIAS 0x20 +#define SND_US16X08_COMP_ATTACK_BIAS 2 +#define SND_US16X08_COMP_RELEASE_BIAS 1 + +/* get macro for components of kcontrol private_value */ +#define SND_US16X08_KCBIAS(x) (((x)->private_value >> 24) & 0xff) +#define SND_US16X08_KCSTEP(x) (((x)->private_value >> 16) & 0xff) +#define SND_US16X08_KCMIN(x) (((x)->private_value >> 8) & 0xff) +#define SND_US16X08_KCMAX(x) (((x)->private_value >> 0) & 0xff) +/* set macro for kcontrol private_value */ +#define SND_US16X08_KCSET(bias, step, min, max) \ + (((bias) << 24) | ((step) << 16) | ((min) << 8) | (max)) + +/* the URB request/type to control Tascam mixers */ +#define SND_US16X08_URB_REQUEST 0x1D +#define SND_US16X08_URB_REQUESTTYPE 0x40 + +/* the URB params to retrieve meter ranges */ +#define SND_US16X08_URB_METER_REQUEST 0x1e +#define SND_US16X08_URB_METER_REQUESTTYPE 0xc0 + +#define MUA0(x, y) ((x)[(y) * 10 + 4]) +#define MUA1(x, y) ((x)[(y) * 10 + 5]) +#define MUA2(x, y) ((x)[(y) * 10 + 6]) +#define MUB0(x, y) ((x)[(y) * 10 + 7]) +#define MUB1(x, y) ((x)[(y) * 10 + 8]) +#define MUB2(x, y) ((x)[(y) * 10 + 9]) +#define MUC0(x, y) ((x)[(y) * 10 + 10]) +#define MUC1(x, y) ((x)[(y) * 10 + 11]) +#define MUC2(x, y) ((x)[(y) * 10 + 12]) +#define MUC3(x, y) ((x)[(y) * 10 + 13]) + +/* Common Channel control IDs */ +#define SND_US16X08_ID_BYPASS 0x45 +#define SND_US16X08_ID_BUSS_OUT 0x44 +#define SND_US16X08_ID_PHASE 0x85 +#define SND_US16X08_ID_MUTE 0x83 +#define SND_US16X08_ID_FADER 0x81 +#define SND_US16X08_ID_PAN 0x82 +#define SND_US16X08_ID_METER 0xB1 + +#define SND_US16X08_ID_EQ_BAND_COUNT 4 +#define SND_US16X08_ID_EQ_PARAM_COUNT 4 + +/* EQ level IDs */ +#define SND_US16X08_ID_EQLOWLEVEL 0x01 +#define SND_US16X08_ID_EQLOWMIDLEVEL 0x02 +#define SND_US16X08_ID_EQHIGHMIDLEVEL 0x03 +#define SND_US16X08_ID_EQHIGHLEVEL 0x04 + +/* EQ frequence IDs */ +#define SND_US16X08_ID_EQLOWFREQ 0x11 +#define SND_US16X08_ID_EQLOWMIDFREQ 0x12 +#define SND_US16X08_ID_EQHIGHMIDFREQ 0x13 +#define SND_US16X08_ID_EQHIGHFREQ 0x14 + +/* EQ width IDs */ +#define SND_US16X08_ID_EQLOWMIDWIDTH 0x22 +#define SND_US16X08_ID_EQHIGHMIDWIDTH 0x23 + +#define SND_US16X08_ID_EQENABLE 0x30 + +#define EQ_STORE_BAND_IDX(x) ((x) & 0xf) +#define EQ_STORE_PARAM_IDX(x) (((x) & 0xf0) >> 4) + +#define SND_US16X08_ID_ROUTE 0x00 + +/* Compressor Ids */ +#define SND_US16X08_ID_COMP_BASE 0x32 +#define SND_US16X08_ID_COMP_THRESHOLD SND_US16X08_ID_COMP_BASE +#define SND_US16X08_ID_COMP_RATIO (SND_US16X08_ID_COMP_BASE + 1) +#define SND_US16X08_ID_COMP_ATTACK (SND_US16X08_ID_COMP_BASE + 2) +#define SND_US16X08_ID_COMP_RELEASE (SND_US16X08_ID_COMP_BASE + 3) +#define SND_US16X08_ID_COMP_GAIN (SND_US16X08_ID_COMP_BASE + 4) +#define SND_US16X08_ID_COMP_SWITCH (SND_US16X08_ID_COMP_BASE + 5) +#define SND_US16X08_ID_COMP_COUNT 6 + +#define COMP_STORE_IDX(x) ((x) - SND_US16X08_ID_COMP_BASE) + +struct snd_us16x08_eq_store { + u8 val[SND_US16X08_ID_EQ_BAND_COUNT][SND_US16X08_ID_EQ_PARAM_COUNT] + [SND_US16X08_MAX_CHANNELS]; +}; + +struct snd_us16x08_comp_store { + u8 val[SND_US16X08_ID_COMP_COUNT][SND_US16X08_MAX_CHANNELS]; +}; + +struct snd_us16x08_meter_store { + int meter_level[SND_US16X08_MAX_CHANNELS]; + int master_level[2]; /* level of meter for master output */ + int comp_index; /* round trip channel selector */ + int comp_active_index; /* channel select from user space mixer */ + int comp_level[16]; /* compressor reduction level */ + struct snd_us16x08_comp_store *comp_store; +}; + +struct snd_us16x08_control_params { + const struct snd_kcontrol_new *kcontrol_new; + int control_id; + int type; + int num_channels; + const char *name; + int default_val; +}; + +#define snd_us16x08_switch_info snd_ctl_boolean_mono_info + +int snd_us16x08_controls_create(struct usb_mixer_interface *mixer); +#endif /* __USB_MIXER_US16X08_H */ diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c new file mode 100644 index 000000000..f2c798c45 --- /dev/null +++ b/sound/usb/pcm.c @@ -0,0 +1,1746 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/bitrev.h> +#include <linux/ratelimit.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> + +#include "usbaudio.h" +#include "card.h" +#include "quirks.h" +#include "endpoint.h" +#include "helper.h" +#include "pcm.h" +#include "clock.h" +#include "power.h" +#include "media.h" +#include "implicit.h" + +#define SUBSTREAM_FLAG_DATA_EP_STARTED 0 +#define SUBSTREAM_FLAG_SYNC_EP_STARTED 1 + +/* return the estimated delay based on USB frame counters */ +static snd_pcm_uframes_t snd_usb_pcm_delay(struct snd_usb_substream *subs, + struct snd_pcm_runtime *runtime) +{ + unsigned int current_frame_number; + unsigned int frame_diff; + int est_delay; + int queued; + + if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { + queued = bytes_to_frames(runtime, subs->inflight_bytes); + if (!queued) + return 0; + } else if (!subs->running) { + return 0; + } + + current_frame_number = usb_get_current_frame_number(subs->dev); + /* + * HCD implementations use different widths, use lower 8 bits. + * The delay will be managed up to 256ms, which is more than + * enough + */ + frame_diff = (current_frame_number - subs->last_frame_number) & 0xff; + + /* Approximation based on number of samples per USB frame (ms), + some truncation for 44.1 but the estimate is good enough */ + est_delay = frame_diff * runtime->rate / 1000; + + if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { + est_delay = queued - est_delay; + if (est_delay < 0) + est_delay = 0; + } + + return est_delay; +} + +/* + * return the current pcm pointer. just based on the hwptr_done value. + */ +static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usb_substream *subs = runtime->private_data; + unsigned int hwptr_done; + + if (atomic_read(&subs->stream->chip->shutdown)) + return SNDRV_PCM_POS_XRUN; + spin_lock(&subs->lock); + hwptr_done = subs->hwptr_done; + runtime->delay = snd_usb_pcm_delay(subs, runtime); + spin_unlock(&subs->lock); + return bytes_to_frames(runtime, hwptr_done); +} + +/* + * find a matching audio format + */ +static const struct audioformat * +find_format(struct list_head *fmt_list_head, snd_pcm_format_t format, + unsigned int rate, unsigned int channels, bool strict_match, + struct snd_usb_substream *subs) +{ + const struct audioformat *fp; + const struct audioformat *found = NULL; + int cur_attr = 0, attr; + + list_for_each_entry(fp, fmt_list_head, list) { + if (strict_match) { + if (!(fp->formats & pcm_format_to_bits(format))) + continue; + if (fp->channels != channels) + continue; + } + if (rate < fp->rate_min || rate > fp->rate_max) + continue; + if (!(fp->rates & SNDRV_PCM_RATE_CONTINUOUS)) { + unsigned int i; + for (i = 0; i < fp->nr_rates; i++) + if (fp->rate_table[i] == rate) + break; + if (i >= fp->nr_rates) + continue; + } + attr = fp->ep_attr & USB_ENDPOINT_SYNCTYPE; + if (!found) { + found = fp; + cur_attr = attr; + continue; + } + /* avoid async out and adaptive in if the other method + * supports the same format. + * this is a workaround for the case like + * M-audio audiophile USB. + */ + if (subs && attr != cur_attr) { + if ((attr == USB_ENDPOINT_SYNC_ASYNC && + subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || + (attr == USB_ENDPOINT_SYNC_ADAPTIVE && + subs->direction == SNDRV_PCM_STREAM_CAPTURE)) + continue; + if ((cur_attr == USB_ENDPOINT_SYNC_ASYNC && + subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || + (cur_attr == USB_ENDPOINT_SYNC_ADAPTIVE && + subs->direction == SNDRV_PCM_STREAM_CAPTURE)) { + found = fp; + cur_attr = attr; + continue; + } + } + /* find the format with the largest max. packet size */ + if (fp->maxpacksize > found->maxpacksize) { + found = fp; + cur_attr = attr; + } + } + return found; +} + +static const struct audioformat * +find_substream_format(struct snd_usb_substream *subs, + const struct snd_pcm_hw_params *params) +{ + return find_format(&subs->fmt_list, params_format(params), + params_rate(params), params_channels(params), + true, subs); +} + +bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *subs) +{ + const struct audioformat *fp; + struct snd_usb_audio *chip; + int rate = -1; + + if (!subs) + return false; + chip = subs->stream->chip; + if (!(chip->quirk_flags & QUIRK_FLAG_FIXED_RATE)) + return false; + list_for_each_entry(fp, &subs->fmt_list, list) { + if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) + return false; + if (fp->nr_rates < 1) + continue; + if (fp->nr_rates > 1) + return false; + if (rate < 0) { + rate = fp->rate_table[0]; + continue; + } + if (rate != fp->rate_table[0]) + return false; + } + return true; +} + +static int init_pitch_v1(struct snd_usb_audio *chip, int ep) +{ + struct usb_device *dev = chip->dev; + unsigned char data[1]; + int err; + + data[0] = 1; + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, + USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, + UAC_EP_CS_ATTR_PITCH_CONTROL << 8, ep, + data, sizeof(data)); + return err; +} + +static int init_pitch_v2(struct snd_usb_audio *chip, int ep) +{ + struct usb_device *dev = chip->dev; + unsigned char data[1]; + int err; + + data[0] = 1; + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT, + UAC2_EP_CS_PITCH << 8, 0, + data, sizeof(data)); + return err; +} + +/* + * initialize the pitch control and sample rate + */ +int snd_usb_init_pitch(struct snd_usb_audio *chip, + const struct audioformat *fmt) +{ + int err; + + /* if endpoint doesn't have pitch control, bail out */ + if (!(fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL)) + return 0; + + usb_audio_dbg(chip, "enable PITCH for EP 0x%x\n", fmt->endpoint); + + switch (fmt->protocol) { + case UAC_VERSION_1: + err = init_pitch_v1(chip, fmt->endpoint); + break; + case UAC_VERSION_2: + err = init_pitch_v2(chip, fmt->endpoint); + break; + default: + return 0; + } + + if (err < 0) { + usb_audio_err(chip, "failed to enable PITCH for EP 0x%x\n", + fmt->endpoint); + return err; + } + + return 0; +} + +static bool stop_endpoints(struct snd_usb_substream *subs, bool keep_pending) +{ + bool stopped = 0; + + if (test_and_clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) { + snd_usb_endpoint_stop(subs->sync_endpoint, keep_pending); + stopped = true; + } + if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) { + snd_usb_endpoint_stop(subs->data_endpoint, keep_pending); + stopped = true; + } + return stopped; +} + +static int start_endpoints(struct snd_usb_substream *subs) +{ + int err; + + if (!subs->data_endpoint) + return -EINVAL; + + if (!test_and_set_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) { + err = snd_usb_endpoint_start(subs->data_endpoint); + if (err < 0) { + clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags); + goto error; + } + } + + if (subs->sync_endpoint && + !test_and_set_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) { + err = snd_usb_endpoint_start(subs->sync_endpoint); + if (err < 0) { + clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags); + goto error; + } + } + + return 0; + + error: + stop_endpoints(subs, false); + return err; +} + +static void sync_pending_stops(struct snd_usb_substream *subs) +{ + snd_usb_endpoint_sync_pending_stop(subs->sync_endpoint); + snd_usb_endpoint_sync_pending_stop(subs->data_endpoint); +} + +/* PCM sync_stop callback */ +static int snd_usb_pcm_sync_stop(struct snd_pcm_substream *substream) +{ + struct snd_usb_substream *subs = substream->runtime->private_data; + + sync_pending_stops(subs); + return 0; +} + +/* Set up sync endpoint */ +int snd_usb_audioformat_set_sync_ep(struct snd_usb_audio *chip, + struct audioformat *fmt) +{ + struct usb_device *dev = chip->dev; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + unsigned int ep, attr, sync_attr; + bool is_playback; + int err; + + if (fmt->sync_ep) + return 0; /* already set up */ + + alts = snd_usb_get_host_interface(chip, fmt->iface, fmt->altsetting); + if (!alts) + return 0; + altsd = get_iface_desc(alts); + + err = snd_usb_parse_implicit_fb_quirk(chip, fmt, alts); + if (err > 0) + return 0; /* matched */ + + /* + * Generic sync EP handling + */ + + if (fmt->ep_idx > 0 || altsd->bNumEndpoints < 2) + return 0; + + is_playback = !(get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN); + attr = fmt->ep_attr & USB_ENDPOINT_SYNCTYPE; + if ((is_playback && (attr == USB_ENDPOINT_SYNC_SYNC || + attr == USB_ENDPOINT_SYNC_ADAPTIVE)) || + (!is_playback && attr != USB_ENDPOINT_SYNC_ADAPTIVE)) + return 0; + + sync_attr = get_endpoint(alts, 1)->bmAttributes; + + /* + * In case of illegal SYNC_NONE for OUT endpoint, we keep going to see + * if we don't find a sync endpoint, as on M-Audio Transit. In case of + * error fall back to SYNC mode and don't create sync endpoint + */ + + /* check sync-pipe endpoint */ + /* ... and check descriptor size before accessing bSynchAddress + because there is a version of the SB Audigy 2 NX firmware lacking + the audio fields in the endpoint descriptors */ + if ((sync_attr & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC || + (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && + get_endpoint(alts, 1)->bSynchAddress != 0)) { + dev_err(&dev->dev, + "%d:%d : invalid sync pipe. bmAttributes %02x, bLength %d, bSynchAddress %02x\n", + fmt->iface, fmt->altsetting, + get_endpoint(alts, 1)->bmAttributes, + get_endpoint(alts, 1)->bLength, + get_endpoint(alts, 1)->bSynchAddress); + if (is_playback && attr == USB_ENDPOINT_SYNC_NONE) + return 0; + return -EINVAL; + } + ep = get_endpoint(alts, 1)->bEndpointAddress; + if (get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && + get_endpoint(alts, 0)->bSynchAddress != 0 && + ((is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) || + (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) { + dev_err(&dev->dev, + "%d:%d : invalid sync pipe. is_playback %d, ep %02x, bSynchAddress %02x\n", + fmt->iface, fmt->altsetting, + is_playback, ep, get_endpoint(alts, 0)->bSynchAddress); + if (is_playback && attr == USB_ENDPOINT_SYNC_NONE) + return 0; + return -EINVAL; + } + + fmt->sync_ep = ep; + fmt->sync_iface = altsd->bInterfaceNumber; + fmt->sync_altsetting = altsd->bAlternateSetting; + fmt->sync_ep_idx = 1; + if ((sync_attr & USB_ENDPOINT_USAGE_MASK) == USB_ENDPOINT_USAGE_IMPLICIT_FB) + fmt->implicit_fb = 1; + + dev_dbg(&dev->dev, "%d:%d: found sync_ep=0x%x, iface=%d, alt=%d, implicit_fb=%d\n", + fmt->iface, fmt->altsetting, fmt->sync_ep, fmt->sync_iface, + fmt->sync_altsetting, fmt->implicit_fb); + + return 0; +} + +static int snd_usb_pcm_change_state(struct snd_usb_substream *subs, int state) +{ + int ret; + + if (!subs->str_pd) + return 0; + + ret = snd_usb_power_domain_set(subs->stream->chip, subs->str_pd, state); + if (ret < 0) { + dev_err(&subs->dev->dev, + "Cannot change Power Domain ID: %d to state: %d. Err: %d\n", + subs->str_pd->pd_id, state, ret); + return ret; + } + + return 0; +} + +int snd_usb_pcm_suspend(struct snd_usb_stream *as) +{ + int ret; + + ret = snd_usb_pcm_change_state(&as->substream[0], UAC3_PD_STATE_D2); + if (ret < 0) + return ret; + + ret = snd_usb_pcm_change_state(&as->substream[1], UAC3_PD_STATE_D2); + if (ret < 0) + return ret; + + return 0; +} + +int snd_usb_pcm_resume(struct snd_usb_stream *as) +{ + int ret; + + ret = snd_usb_pcm_change_state(&as->substream[0], UAC3_PD_STATE_D1); + if (ret < 0) + return ret; + + ret = snd_usb_pcm_change_state(&as->substream[1], UAC3_PD_STATE_D1); + if (ret < 0) + return ret; + + return 0; +} + +static void close_endpoints(struct snd_usb_audio *chip, + struct snd_usb_substream *subs) +{ + if (subs->data_endpoint) { + snd_usb_endpoint_set_sync(chip, subs->data_endpoint, NULL); + snd_usb_endpoint_close(chip, subs->data_endpoint); + subs->data_endpoint = NULL; + } + + if (subs->sync_endpoint) { + snd_usb_endpoint_close(chip, subs->sync_endpoint); + subs->sync_endpoint = NULL; + } +} + +/* + * hw_params callback + * + * allocate a buffer and set the given audio format. + * + * so far we use a physically linear buffer although packetize transfer + * doesn't need a continuous area. + * if sg buffer is supported on the later version of alsa, we'll follow + * that. + */ +static int snd_usb_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_usb_substream *subs = substream->runtime->private_data; + struct snd_usb_audio *chip = subs->stream->chip; + const struct audioformat *fmt; + const struct audioformat *sync_fmt; + bool fixed_rate, sync_fixed_rate; + int ret; + + ret = snd_media_start_pipeline(subs); + if (ret) + return ret; + + fixed_rate = snd_usb_pcm_has_fixed_rate(subs); + fmt = find_substream_format(subs, hw_params); + if (!fmt) { + usb_audio_dbg(chip, + "cannot find format: format=%s, rate=%d, channels=%d\n", + snd_pcm_format_name(params_format(hw_params)), + params_rate(hw_params), params_channels(hw_params)); + ret = -EINVAL; + goto stop_pipeline; + } + + if (fmt->implicit_fb) { + sync_fmt = snd_usb_find_implicit_fb_sync_format(chip, fmt, + hw_params, + !substream->stream, + &sync_fixed_rate); + if (!sync_fmt) { + usb_audio_dbg(chip, + "cannot find sync format: ep=0x%x, iface=%d:%d, format=%s, rate=%d, channels=%d\n", + fmt->sync_ep, fmt->sync_iface, + fmt->sync_altsetting, + snd_pcm_format_name(params_format(hw_params)), + params_rate(hw_params), params_channels(hw_params)); + ret = -EINVAL; + goto stop_pipeline; + } + } else { + sync_fmt = fmt; + sync_fixed_rate = fixed_rate; + } + + ret = snd_usb_lock_shutdown(chip); + if (ret < 0) + goto stop_pipeline; + + ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D0); + if (ret < 0) + goto unlock; + + if (subs->data_endpoint) { + if (snd_usb_endpoint_compatible(chip, subs->data_endpoint, + fmt, hw_params)) + goto unlock; + if (stop_endpoints(subs, false)) + sync_pending_stops(subs); + close_endpoints(chip, subs); + } + + subs->data_endpoint = snd_usb_endpoint_open(chip, fmt, hw_params, false, fixed_rate); + if (!subs->data_endpoint) { + ret = -EINVAL; + goto unlock; + } + + if (fmt->sync_ep) { + subs->sync_endpoint = snd_usb_endpoint_open(chip, sync_fmt, + hw_params, + fmt == sync_fmt, + sync_fixed_rate); + if (!subs->sync_endpoint) { + ret = -EINVAL; + goto unlock; + } + + snd_usb_endpoint_set_sync(chip, subs->data_endpoint, + subs->sync_endpoint); + } + + mutex_lock(&chip->mutex); + subs->cur_audiofmt = fmt; + mutex_unlock(&chip->mutex); + + if (!subs->data_endpoint->need_setup) + goto unlock; + + if (subs->sync_endpoint) { + ret = snd_usb_endpoint_set_params(chip, subs->sync_endpoint); + if (ret < 0) + goto unlock; + } + + ret = snd_usb_endpoint_set_params(chip, subs->data_endpoint); + + unlock: + if (ret < 0) + close_endpoints(chip, subs); + + snd_usb_unlock_shutdown(chip); + stop_pipeline: + if (ret < 0) + snd_media_stop_pipeline(subs); + + return ret; +} + +/* + * hw_free callback + * + * reset the audio format and release the buffer + */ +static int snd_usb_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_usb_substream *subs = substream->runtime->private_data; + struct snd_usb_audio *chip = subs->stream->chip; + + snd_media_stop_pipeline(subs); + mutex_lock(&chip->mutex); + subs->cur_audiofmt = NULL; + mutex_unlock(&chip->mutex); + if (!snd_usb_lock_shutdown(chip)) { + if (stop_endpoints(subs, false)) + sync_pending_stops(subs); + close_endpoints(chip, subs); + snd_usb_unlock_shutdown(chip); + } + + return 0; +} + +/* free-wheeling mode? (e.g. dmix) */ +static int in_free_wheeling_mode(struct snd_pcm_runtime *runtime) +{ + return runtime->stop_threshold > runtime->buffer_size; +} + +/* check whether early start is needed for playback stream */ +static int lowlatency_playback_available(struct snd_pcm_runtime *runtime, + struct snd_usb_substream *subs) +{ + struct snd_usb_audio *chip = subs->stream->chip; + + if (subs->direction == SNDRV_PCM_STREAM_CAPTURE) + return false; + /* disabled via module option? */ + if (!chip->lowlatency) + return false; + if (in_free_wheeling_mode(runtime)) + return false; + /* implicit feedback mode has own operation mode */ + if (snd_usb_endpoint_implicit_feedback_sink(subs->data_endpoint)) + return false; + return true; +} + +/* + * prepare callback + * + * only a few subtle things... + */ +static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usb_substream *subs = runtime->private_data; + struct snd_usb_audio *chip = subs->stream->chip; + int retry = 0; + int ret; + + ret = snd_usb_lock_shutdown(chip); + if (ret < 0) + return ret; + if (snd_BUG_ON(!subs->data_endpoint)) { + ret = -EIO; + goto unlock; + } + + ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D0); + if (ret < 0) + goto unlock; + + again: + if (subs->sync_endpoint) { + ret = snd_usb_endpoint_prepare(chip, subs->sync_endpoint); + if (ret < 0) + goto unlock; + } + + ret = snd_usb_endpoint_prepare(chip, subs->data_endpoint); + if (ret < 0) + goto unlock; + else if (ret > 0) + snd_usb_set_format_quirk(subs, subs->cur_audiofmt); + ret = 0; + + /* reset the pointer */ + subs->buffer_bytes = frames_to_bytes(runtime, runtime->buffer_size); + subs->inflight_bytes = 0; + subs->hwptr_done = 0; + subs->transfer_done = 0; + subs->last_frame_number = 0; + subs->period_elapsed_pending = 0; + runtime->delay = 0; + + subs->lowlatency_playback = lowlatency_playback_available(runtime, subs); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && + !subs->lowlatency_playback) { + ret = start_endpoints(subs); + /* if XRUN happens at starting streams (possibly with implicit + * fb case), restart again, but only try once. + */ + if (ret == -EPIPE && !retry++) { + sync_pending_stops(subs); + goto again; + } + } + unlock: + snd_usb_unlock_shutdown(chip); + return ret; +} + +/* + * h/w constraints + */ + +#ifdef HW_CONST_DEBUG +#define hwc_debug(fmt, args...) pr_debug(fmt, ##args) +#else +#define hwc_debug(fmt, args...) do { } while(0) +#endif + +static const struct snd_pcm_hardware snd_usb_hardware = +{ + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_PAUSE, + .channels_min = 1, + .channels_max = 256, + .buffer_bytes_max = INT_MAX, /* limited by BUFFER_TIME later */ + .period_bytes_min = 64, + .period_bytes_max = INT_MAX, /* limited by PERIOD_TIME later */ + .periods_min = 2, + .periods_max = 1024, +}; + +static int hw_check_valid_format(struct snd_usb_substream *subs, + struct snd_pcm_hw_params *params, + const struct audioformat *fp) +{ + struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + struct snd_interval *pt = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME); + struct snd_mask check_fmts; + unsigned int ptime; + + /* check the format */ + snd_mask_none(&check_fmts); + check_fmts.bits[0] = (u32)fp->formats; + check_fmts.bits[1] = (u32)(fp->formats >> 32); + snd_mask_intersect(&check_fmts, fmts); + if (snd_mask_empty(&check_fmts)) { + hwc_debug(" > check: no supported format 0x%llx\n", fp->formats); + return 0; + } + /* check the channels */ + if (fp->channels < ct->min || fp->channels > ct->max) { + hwc_debug(" > check: no valid channels %d (%d/%d)\n", fp->channels, ct->min, ct->max); + return 0; + } + /* check the rate is within the range */ + if (fp->rate_min > it->max || (fp->rate_min == it->max && it->openmax)) { + hwc_debug(" > check: rate_min %d > max %d\n", fp->rate_min, it->max); + return 0; + } + if (fp->rate_max < it->min || (fp->rate_max == it->min && it->openmin)) { + hwc_debug(" > check: rate_max %d < min %d\n", fp->rate_max, it->min); + return 0; + } + /* check whether the period time is >= the data packet interval */ + if (subs->speed != USB_SPEED_FULL) { + ptime = 125 * (1 << fp->datainterval); + if (ptime > pt->max || (ptime == pt->max && pt->openmax)) { + hwc_debug(" > check: ptime %u > max %u\n", ptime, pt->max); + return 0; + } + } + return 1; +} + +static int apply_hw_params_minmax(struct snd_interval *it, unsigned int rmin, + unsigned int rmax) +{ + int changed; + + if (rmin > rmax) { + hwc_debug(" --> get empty\n"); + it->empty = 1; + return -EINVAL; + } + + changed = 0; + if (it->min < rmin) { + it->min = rmin; + it->openmin = 0; + changed = 1; + } + if (it->max > rmax) { + it->max = rmax; + it->openmax = 0; + changed = 1; + } + if (snd_interval_checkempty(it)) { + it->empty = 1; + return -EINVAL; + } + hwc_debug(" --> (%d, %d) (changed = %d)\n", it->min, it->max, changed); + return changed; +} + +static int hw_rule_rate(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + struct snd_usb_audio *chip = subs->stream->chip; + const struct audioformat *fp; + struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + unsigned int rmin, rmax, r; + int i; + + hwc_debug("hw_rule_rate: (%d,%d)\n", it->min, it->max); + rmin = UINT_MAX; + rmax = 0; + list_for_each_entry(fp, &subs->fmt_list, list) { + if (!hw_check_valid_format(subs, params, fp)) + continue; + r = snd_usb_endpoint_get_clock_rate(chip, fp->clock); + if (r > 0) { + if (!snd_interval_test(it, r)) + continue; + rmin = min(rmin, r); + rmax = max(rmax, r); + continue; + } + if (fp->rate_table && fp->nr_rates) { + for (i = 0; i < fp->nr_rates; i++) { + r = fp->rate_table[i]; + if (!snd_interval_test(it, r)) + continue; + rmin = min(rmin, r); + rmax = max(rmax, r); + } + } else { + rmin = min(rmin, fp->rate_min); + rmax = max(rmax, fp->rate_max); + } + } + + return apply_hw_params_minmax(it, rmin, rmax); +} + + +static int hw_rule_channels(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + const struct audioformat *fp; + struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + unsigned int rmin, rmax; + + hwc_debug("hw_rule_channels: (%d,%d)\n", it->min, it->max); + rmin = UINT_MAX; + rmax = 0; + list_for_each_entry(fp, &subs->fmt_list, list) { + if (!hw_check_valid_format(subs, params, fp)) + continue; + rmin = min(rmin, fp->channels); + rmax = max(rmax, fp->channels); + } + + return apply_hw_params_minmax(it, rmin, rmax); +} + +static int apply_hw_params_format_bits(struct snd_mask *fmt, u64 fbits) +{ + u32 oldbits[2]; + int changed; + + oldbits[0] = fmt->bits[0]; + oldbits[1] = fmt->bits[1]; + fmt->bits[0] &= (u32)fbits; + fmt->bits[1] &= (u32)(fbits >> 32); + if (!fmt->bits[0] && !fmt->bits[1]) { + hwc_debug(" --> get empty\n"); + return -EINVAL; + } + changed = (oldbits[0] != fmt->bits[0] || oldbits[1] != fmt->bits[1]); + hwc_debug(" --> %x:%x (changed = %d)\n", fmt->bits[0], fmt->bits[1], changed); + return changed; +} + +static int hw_rule_format(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + const struct audioformat *fp; + struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + u64 fbits; + + hwc_debug("hw_rule_format: %x:%x\n", fmt->bits[0], fmt->bits[1]); + fbits = 0; + list_for_each_entry(fp, &subs->fmt_list, list) { + if (!hw_check_valid_format(subs, params, fp)) + continue; + fbits |= fp->formats; + } + return apply_hw_params_format_bits(fmt, fbits); +} + +static int hw_rule_period_time(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + const struct audioformat *fp; + struct snd_interval *it; + unsigned char min_datainterval; + unsigned int pmin; + + it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME); + hwc_debug("hw_rule_period_time: (%u,%u)\n", it->min, it->max); + min_datainterval = 0xff; + list_for_each_entry(fp, &subs->fmt_list, list) { + if (!hw_check_valid_format(subs, params, fp)) + continue; + min_datainterval = min(min_datainterval, fp->datainterval); + } + if (min_datainterval == 0xff) { + hwc_debug(" --> get empty\n"); + it->empty = 1; + return -EINVAL; + } + pmin = 125 * (1 << min_datainterval); + + return apply_hw_params_minmax(it, pmin, UINT_MAX); +} + +/* get the EP or the sync EP for implicit fb when it's already set up */ +static const struct snd_usb_endpoint * +get_sync_ep_from_substream(struct snd_usb_substream *subs) +{ + struct snd_usb_audio *chip = subs->stream->chip; + const struct audioformat *fp; + const struct snd_usb_endpoint *ep; + + list_for_each_entry(fp, &subs->fmt_list, list) { + ep = snd_usb_get_endpoint(chip, fp->endpoint); + if (ep && ep->cur_audiofmt) { + /* if EP is already opened solely for this substream, + * we still allow us to change the parameter; otherwise + * this substream has to follow the existing parameter + */ + if (ep->cur_audiofmt != subs->cur_audiofmt || ep->opened > 1) + return ep; + } + if (!fp->implicit_fb) + continue; + /* for the implicit fb, check the sync ep as well */ + ep = snd_usb_get_endpoint(chip, fp->sync_ep); + if (ep && ep->cur_audiofmt) { + /* ditto, if the sync (data) ep is used by others, + * this stream is restricted by the sync ep + */ + if (ep != subs->sync_endpoint || ep->opened > 1) + return ep; + } + } + return NULL; +} + +/* additional hw constraints for implicit feedback mode */ +static int hw_rule_format_implicit_fb(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + const struct snd_usb_endpoint *ep; + struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + + ep = get_sync_ep_from_substream(subs); + if (!ep) + return 0; + + hwc_debug("applying %s\n", __func__); + return apply_hw_params_format_bits(fmt, pcm_format_to_bits(ep->cur_format)); +} + +static int hw_rule_rate_implicit_fb(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + const struct snd_usb_endpoint *ep; + struct snd_interval *it; + + ep = get_sync_ep_from_substream(subs); + if (!ep) + return 0; + + hwc_debug("applying %s\n", __func__); + it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + return apply_hw_params_minmax(it, ep->cur_rate, ep->cur_rate); +} + +static int hw_rule_period_size_implicit_fb(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + const struct snd_usb_endpoint *ep; + struct snd_interval *it; + + ep = get_sync_ep_from_substream(subs); + if (!ep) + return 0; + + hwc_debug("applying %s\n", __func__); + it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE); + return apply_hw_params_minmax(it, ep->cur_period_frames, + ep->cur_period_frames); +} + +static int hw_rule_periods_implicit_fb(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_usb_substream *subs = rule->private; + const struct snd_usb_endpoint *ep; + struct snd_interval *it; + + ep = get_sync_ep_from_substream(subs); + if (!ep) + return 0; + + hwc_debug("applying %s\n", __func__); + it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIODS); + return apply_hw_params_minmax(it, ep->cur_buffer_periods, + ep->cur_buffer_periods); +} + +/* + * set up the runtime hardware information. + */ + +static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs) +{ + const struct audioformat *fp; + unsigned int pt, ptmin; + int param_period_time_if_needed = -1; + int err; + + runtime->hw.formats = subs->formats; + + runtime->hw.rate_min = 0x7fffffff; + runtime->hw.rate_max = 0; + runtime->hw.channels_min = 256; + runtime->hw.channels_max = 0; + runtime->hw.rates = 0; + ptmin = UINT_MAX; + /* check min/max rates and channels */ + list_for_each_entry(fp, &subs->fmt_list, list) { + runtime->hw.rates |= fp->rates; + if (runtime->hw.rate_min > fp->rate_min) + runtime->hw.rate_min = fp->rate_min; + if (runtime->hw.rate_max < fp->rate_max) + runtime->hw.rate_max = fp->rate_max; + if (runtime->hw.channels_min > fp->channels) + runtime->hw.channels_min = fp->channels; + if (runtime->hw.channels_max < fp->channels) + runtime->hw.channels_max = fp->channels; + if (fp->fmt_type == UAC_FORMAT_TYPE_II && fp->frame_size > 0) { + /* FIXME: there might be more than one audio formats... */ + runtime->hw.period_bytes_min = runtime->hw.period_bytes_max = + fp->frame_size; + } + pt = 125 * (1 << fp->datainterval); + ptmin = min(ptmin, pt); + } + + param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME; + if (subs->speed == USB_SPEED_FULL) + /* full speed devices have fixed data packet interval */ + ptmin = 1000; + if (ptmin == 1000) + /* if period time doesn't go below 1 ms, no rules needed */ + param_period_time_if_needed = -1; + + err = snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_PERIOD_TIME, + ptmin, UINT_MAX); + if (err < 0) + return err; + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + hw_rule_rate, subs, + SNDRV_PCM_HW_PARAM_RATE, + SNDRV_PCM_HW_PARAM_FORMAT, + SNDRV_PCM_HW_PARAM_CHANNELS, + param_period_time_if_needed, + -1); + if (err < 0) + return err; + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + hw_rule_channels, subs, + SNDRV_PCM_HW_PARAM_CHANNELS, + SNDRV_PCM_HW_PARAM_FORMAT, + SNDRV_PCM_HW_PARAM_RATE, + param_period_time_if_needed, + -1); + if (err < 0) + return err; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, + hw_rule_format, subs, + SNDRV_PCM_HW_PARAM_FORMAT, + SNDRV_PCM_HW_PARAM_RATE, + SNDRV_PCM_HW_PARAM_CHANNELS, + param_period_time_if_needed, + -1); + if (err < 0) + return err; + if (param_period_time_if_needed >= 0) { + err = snd_pcm_hw_rule_add(runtime, 0, + SNDRV_PCM_HW_PARAM_PERIOD_TIME, + hw_rule_period_time, subs, + SNDRV_PCM_HW_PARAM_FORMAT, + SNDRV_PCM_HW_PARAM_CHANNELS, + SNDRV_PCM_HW_PARAM_RATE, + -1); + if (err < 0) + return err; + } + + /* set max period and buffer sizes for 1 and 2 seconds, respectively */ + err = snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_PERIOD_TIME, + 0, 1000000); + if (err < 0) + return err; + err = snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_BUFFER_TIME, + 0, 2000000); + if (err < 0) + return err; + + /* additional hw constraints for implicit fb */ + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, + hw_rule_format_implicit_fb, subs, + SNDRV_PCM_HW_PARAM_FORMAT, -1); + if (err < 0) + return err; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + hw_rule_rate_implicit_fb, subs, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + return err; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + hw_rule_period_size_implicit_fb, subs, + SNDRV_PCM_HW_PARAM_PERIOD_SIZE, -1); + if (err < 0) + return err; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS, + hw_rule_periods_implicit_fb, subs, + SNDRV_PCM_HW_PARAM_PERIODS, -1); + if (err < 0) + return err; + + list_for_each_entry(fp, &subs->fmt_list, list) { + if (fp->implicit_fb) { + runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX; + break; + } + } + + return 0; +} + +static int snd_usb_pcm_open(struct snd_pcm_substream *substream) +{ + int direction = substream->stream; + struct snd_usb_stream *as = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usb_substream *subs = &as->substream[direction]; + int ret; + + runtime->hw = snd_usb_hardware; + /* need an explicit sync to catch applptr update in low-latency mode */ + if (direction == SNDRV_PCM_STREAM_PLAYBACK && + as->chip->lowlatency) + runtime->hw.info |= SNDRV_PCM_INFO_SYNC_APPLPTR; + runtime->private_data = subs; + subs->pcm_substream = substream; + /* runtime PM is also done there */ + + /* initialize DSD/DOP context */ + subs->dsd_dop.byte_idx = 0; + subs->dsd_dop.channel = 0; + subs->dsd_dop.marker = 1; + + ret = setup_hw_info(runtime, subs); + if (ret < 0) + return ret; + ret = snd_usb_autoresume(subs->stream->chip); + if (ret < 0) + return ret; + ret = snd_media_stream_init(subs, as->pcm, direction); + if (ret < 0) + snd_usb_autosuspend(subs->stream->chip); + return ret; +} + +static int snd_usb_pcm_close(struct snd_pcm_substream *substream) +{ + int direction = substream->stream; + struct snd_usb_stream *as = snd_pcm_substream_chip(substream); + struct snd_usb_substream *subs = &as->substream[direction]; + int ret; + + snd_media_stop_pipeline(subs); + + if (!snd_usb_lock_shutdown(subs->stream->chip)) { + ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D1); + snd_usb_unlock_shutdown(subs->stream->chip); + if (ret < 0) + return ret; + } + + subs->pcm_substream = NULL; + snd_usb_autosuspend(subs->stream->chip); + + return 0; +} + +/* Since a URB can handle only a single linear buffer, we must use double + * buffering when the data to be transferred overflows the buffer boundary. + * To avoid inconsistencies when updating hwptr_done, we use double buffering + * for all URBs. + */ +static void retire_capture_urb(struct snd_usb_substream *subs, + struct urb *urb) +{ + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + unsigned int stride, frames, bytes, oldptr; + int i, period_elapsed = 0; + unsigned long flags; + unsigned char *cp; + int current_frame_number; + + /* read frame number here, update pointer in critical section */ + current_frame_number = usb_get_current_frame_number(subs->dev); + + stride = runtime->frame_bits >> 3; + + for (i = 0; i < urb->number_of_packets; i++) { + cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset + subs->pkt_offset_adj; + if (urb->iso_frame_desc[i].status && printk_ratelimit()) { + dev_dbg(&subs->dev->dev, "frame %d active: %d\n", + i, urb->iso_frame_desc[i].status); + // continue; + } + bytes = urb->iso_frame_desc[i].actual_length; + if (subs->stream_offset_adj > 0) { + unsigned int adj = min(subs->stream_offset_adj, bytes); + cp += adj; + bytes -= adj; + subs->stream_offset_adj -= adj; + } + frames = bytes / stride; + if (!subs->txfr_quirk) + bytes = frames * stride; + if (bytes % (runtime->sample_bits >> 3) != 0) { + int oldbytes = bytes; + bytes = frames * stride; + dev_warn_ratelimited(&subs->dev->dev, + "Corrected urb data len. %d->%d\n", + oldbytes, bytes); + } + /* update the current pointer */ + spin_lock_irqsave(&subs->lock, flags); + oldptr = subs->hwptr_done; + subs->hwptr_done += bytes; + if (subs->hwptr_done >= subs->buffer_bytes) + subs->hwptr_done -= subs->buffer_bytes; + frames = (bytes + (oldptr % stride)) / stride; + subs->transfer_done += frames; + if (subs->transfer_done >= runtime->period_size) { + subs->transfer_done -= runtime->period_size; + period_elapsed = 1; + } + + /* realign last_frame_number */ + subs->last_frame_number = current_frame_number; + + spin_unlock_irqrestore(&subs->lock, flags); + /* copy a data chunk */ + if (oldptr + bytes > subs->buffer_bytes) { + unsigned int bytes1 = subs->buffer_bytes - oldptr; + + memcpy(runtime->dma_area + oldptr, cp, bytes1); + memcpy(runtime->dma_area, cp + bytes1, bytes - bytes1); + } else { + memcpy(runtime->dma_area + oldptr, cp, bytes); + } + } + + if (period_elapsed) + snd_pcm_period_elapsed(subs->pcm_substream); +} + +static void urb_ctx_queue_advance(struct snd_usb_substream *subs, + struct urb *urb, unsigned int bytes) +{ + struct snd_urb_ctx *ctx = urb->context; + + ctx->queued += bytes; + subs->inflight_bytes += bytes; + subs->hwptr_done += bytes; + if (subs->hwptr_done >= subs->buffer_bytes) + subs->hwptr_done -= subs->buffer_bytes; +} + +static inline void fill_playback_urb_dsd_dop(struct snd_usb_substream *subs, + struct urb *urb, unsigned int bytes) +{ + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + unsigned int dst_idx = 0; + unsigned int src_idx = subs->hwptr_done; + unsigned int wrap = subs->buffer_bytes; + u8 *dst = urb->transfer_buffer; + u8 *src = runtime->dma_area; + static const u8 marker[] = { 0x05, 0xfa }; + unsigned int queued = 0; + + /* + * The DSP DOP format defines a way to transport DSD samples over + * normal PCM data endpoints. It requires stuffing of marker bytes + * (0x05 and 0xfa, alternating per sample frame), and then expects + * 2 additional bytes of actual payload. The whole frame is stored + * LSB. + * + * Hence, for a stereo transport, the buffer layout looks like this, + * where L refers to left channel samples and R to right. + * + * L1 L2 0x05 R1 R2 0x05 L3 L4 0xfa R3 R4 0xfa + * L5 L6 0x05 R5 R6 0x05 L7 L8 0xfa R7 R8 0xfa + * ..... + * + */ + + while (bytes--) { + if (++subs->dsd_dop.byte_idx == 3) { + /* frame boundary? */ + dst[dst_idx++] = marker[subs->dsd_dop.marker]; + src_idx += 2; + subs->dsd_dop.byte_idx = 0; + + if (++subs->dsd_dop.channel % runtime->channels == 0) { + /* alternate the marker */ + subs->dsd_dop.marker++; + subs->dsd_dop.marker %= ARRAY_SIZE(marker); + subs->dsd_dop.channel = 0; + } + } else { + /* stuff the DSD payload */ + int idx = (src_idx + subs->dsd_dop.byte_idx - 1) % wrap; + + if (subs->cur_audiofmt->dsd_bitrev) + dst[dst_idx++] = bitrev8(src[idx]); + else + dst[dst_idx++] = src[idx]; + queued++; + } + } + + urb_ctx_queue_advance(subs, urb, queued); +} + +/* copy bit-reversed bytes onto transfer buffer */ +static void fill_playback_urb_dsd_bitrev(struct snd_usb_substream *subs, + struct urb *urb, unsigned int bytes) +{ + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + const u8 *src = runtime->dma_area; + u8 *buf = urb->transfer_buffer; + int i, ofs = subs->hwptr_done; + + for (i = 0; i < bytes; i++) { + *buf++ = bitrev8(src[ofs]); + if (++ofs >= subs->buffer_bytes) + ofs = 0; + } + + urb_ctx_queue_advance(subs, urb, bytes); +} + +static void copy_to_urb(struct snd_usb_substream *subs, struct urb *urb, + int offset, int stride, unsigned int bytes) +{ + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + + if (subs->hwptr_done + bytes > subs->buffer_bytes) { + /* err, the transferred area goes over buffer boundary. */ + unsigned int bytes1 = subs->buffer_bytes - subs->hwptr_done; + + memcpy(urb->transfer_buffer + offset, + runtime->dma_area + subs->hwptr_done, bytes1); + memcpy(urb->transfer_buffer + offset + bytes1, + runtime->dma_area, bytes - bytes1); + } else { + memcpy(urb->transfer_buffer + offset, + runtime->dma_area + subs->hwptr_done, bytes); + } + + urb_ctx_queue_advance(subs, urb, bytes); +} + +static unsigned int copy_to_urb_quirk(struct snd_usb_substream *subs, + struct urb *urb, int stride, + unsigned int bytes) +{ + __le32 packet_length; + int i; + + /* Put __le32 length descriptor at start of each packet. */ + for (i = 0; i < urb->number_of_packets; i++) { + unsigned int length = urb->iso_frame_desc[i].length; + unsigned int offset = urb->iso_frame_desc[i].offset; + + packet_length = cpu_to_le32(length); + offset += i * sizeof(packet_length); + urb->iso_frame_desc[i].offset = offset; + urb->iso_frame_desc[i].length += sizeof(packet_length); + memcpy(urb->transfer_buffer + offset, + &packet_length, sizeof(packet_length)); + copy_to_urb(subs, urb, offset + sizeof(packet_length), + stride, length); + } + /* Adjust transfer size accordingly. */ + bytes += urb->number_of_packets * sizeof(packet_length); + return bytes; +} + +static int prepare_playback_urb(struct snd_usb_substream *subs, + struct urb *urb, + bool in_stream_lock) +{ + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + struct snd_usb_endpoint *ep = subs->data_endpoint; + struct snd_urb_ctx *ctx = urb->context; + unsigned int frames, bytes; + int counts; + unsigned int transfer_done, frame_limit, avail = 0; + int i, stride, period_elapsed = 0; + unsigned long flags; + int err = 0; + + stride = ep->stride; + + frames = 0; + ctx->queued = 0; + urb->number_of_packets = 0; + + spin_lock_irqsave(&subs->lock, flags); + frame_limit = subs->frame_limit + ep->max_urb_frames; + transfer_done = subs->transfer_done; + + if (subs->lowlatency_playback && + runtime->state != SNDRV_PCM_STATE_DRAINING) { + unsigned int hwptr = subs->hwptr_done / stride; + + /* calculate the byte offset-in-buffer of the appl_ptr */ + avail = (runtime->control->appl_ptr - runtime->hw_ptr_base) + % runtime->buffer_size; + if (avail <= hwptr) + avail += runtime->buffer_size; + avail -= hwptr; + } + + for (i = 0; i < ctx->packets; i++) { + counts = snd_usb_endpoint_next_packet_size(ep, ctx, i, avail); + if (counts < 0) + break; + /* set up descriptor */ + urb->iso_frame_desc[i].offset = frames * stride; + urb->iso_frame_desc[i].length = counts * stride; + frames += counts; + avail -= counts; + urb->number_of_packets++; + transfer_done += counts; + if (transfer_done >= runtime->period_size) { + transfer_done -= runtime->period_size; + frame_limit = 0; + period_elapsed = 1; + if (subs->fmt_type == UAC_FORMAT_TYPE_II) { + if (transfer_done > 0) { + /* FIXME: fill-max mode is not + * supported yet */ + frames -= transfer_done; + counts -= transfer_done; + urb->iso_frame_desc[i].length = + counts * stride; + transfer_done = 0; + } + i++; + if (i < ctx->packets) { + /* add a transfer delimiter */ + urb->iso_frame_desc[i].offset = + frames * stride; + urb->iso_frame_desc[i].length = 0; + urb->number_of_packets++; + } + break; + } + } + /* finish at the period boundary or after enough frames */ + if ((period_elapsed || transfer_done >= frame_limit) && + !snd_usb_endpoint_implicit_feedback_sink(ep)) + break; + } + + if (!frames) { + err = -EAGAIN; + goto unlock; + } + + bytes = frames * stride; + subs->transfer_done = transfer_done; + subs->frame_limit = frame_limit; + if (unlikely(ep->cur_format == SNDRV_PCM_FORMAT_DSD_U16_LE && + subs->cur_audiofmt->dsd_dop)) { + fill_playback_urb_dsd_dop(subs, urb, bytes); + } else if (unlikely(ep->cur_format == SNDRV_PCM_FORMAT_DSD_U8 && + subs->cur_audiofmt->dsd_bitrev)) { + fill_playback_urb_dsd_bitrev(subs, urb, bytes); + } else { + /* usual PCM */ + if (!subs->tx_length_quirk) + copy_to_urb(subs, urb, 0, stride, bytes); + else + bytes = copy_to_urb_quirk(subs, urb, stride, bytes); + /* bytes is now amount of outgoing data */ + } + + subs->last_frame_number = usb_get_current_frame_number(subs->dev); + + if (subs->trigger_tstamp_pending_update) { + /* this is the first actual URB submitted, + * update trigger timestamp to reflect actual start time + */ + snd_pcm_gettime(runtime, &runtime->trigger_tstamp); + subs->trigger_tstamp_pending_update = false; + } + + if (period_elapsed && !subs->running && subs->lowlatency_playback) { + subs->period_elapsed_pending = 1; + period_elapsed = 0; + } + + unlock: + spin_unlock_irqrestore(&subs->lock, flags); + if (err < 0) + return err; + urb->transfer_buffer_length = bytes; + if (period_elapsed) { + if (in_stream_lock) + snd_pcm_period_elapsed_under_stream_lock(subs->pcm_substream); + else + snd_pcm_period_elapsed(subs->pcm_substream); + } + return 0; +} + +/* + * process after playback data complete + * - decrease the delay count again + */ +static void retire_playback_urb(struct snd_usb_substream *subs, + struct urb *urb) +{ + unsigned long flags; + struct snd_urb_ctx *ctx = urb->context; + bool period_elapsed = false; + + spin_lock_irqsave(&subs->lock, flags); + if (ctx->queued) { + if (subs->inflight_bytes >= ctx->queued) + subs->inflight_bytes -= ctx->queued; + else + subs->inflight_bytes = 0; + } + + subs->last_frame_number = usb_get_current_frame_number(subs->dev); + if (subs->running) { + period_elapsed = subs->period_elapsed_pending; + subs->period_elapsed_pending = 0; + } + spin_unlock_irqrestore(&subs->lock, flags); + if (period_elapsed) + snd_pcm_period_elapsed(subs->pcm_substream); +} + +/* PCM ack callback for the playback stream; + * this plays a role only when the stream is running in low-latency mode. + */ +static int snd_usb_pcm_playback_ack(struct snd_pcm_substream *substream) +{ + struct snd_usb_substream *subs = substream->runtime->private_data; + struct snd_usb_endpoint *ep; + + if (!subs->lowlatency_playback || !subs->running) + return 0; + ep = subs->data_endpoint; + if (!ep) + return 0; + /* When no more in-flight URBs available, try to process the pending + * outputs here + */ + if (!ep->active_mask) + return snd_usb_queue_pending_output_urbs(ep, true); + return 0; +} + +static int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + struct snd_usb_substream *subs = substream->runtime->private_data; + int err; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + subs->trigger_tstamp_pending_update = true; + fallthrough; + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + snd_usb_endpoint_set_callback(subs->data_endpoint, + prepare_playback_urb, + retire_playback_urb, + subs); + if (subs->lowlatency_playback && + cmd == SNDRV_PCM_TRIGGER_START) { + if (in_free_wheeling_mode(substream->runtime)) + subs->lowlatency_playback = false; + err = start_endpoints(subs); + if (err < 0) { + snd_usb_endpoint_set_callback(subs->data_endpoint, + NULL, NULL, NULL); + return err; + } + } + subs->running = 1; + dev_dbg(&subs->dev->dev, "%d:%d Start Playback PCM\n", + subs->cur_audiofmt->iface, + subs->cur_audiofmt->altsetting); + return 0; + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + stop_endpoints(subs, substream->runtime->state == SNDRV_PCM_STATE_DRAINING); + snd_usb_endpoint_set_callback(subs->data_endpoint, + NULL, NULL, NULL); + subs->running = 0; + dev_dbg(&subs->dev->dev, "%d:%d Stop Playback PCM\n", + subs->cur_audiofmt->iface, + subs->cur_audiofmt->altsetting); + return 0; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + /* keep retire_data_urb for delay calculation */ + snd_usb_endpoint_set_callback(subs->data_endpoint, + NULL, + retire_playback_urb, + subs); + subs->running = 0; + dev_dbg(&subs->dev->dev, "%d:%d Pause Playback PCM\n", + subs->cur_audiofmt->iface, + subs->cur_audiofmt->altsetting); + return 0; + } + + return -EINVAL; +} + +static int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + int err; + struct snd_usb_substream *subs = substream->runtime->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + err = start_endpoints(subs); + if (err < 0) + return err; + fallthrough; + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + snd_usb_endpoint_set_callback(subs->data_endpoint, + NULL, retire_capture_urb, + subs); + subs->last_frame_number = usb_get_current_frame_number(subs->dev); + subs->running = 1; + dev_dbg(&subs->dev->dev, "%d:%d Start Capture PCM\n", + subs->cur_audiofmt->iface, + subs->cur_audiofmt->altsetting); + return 0; + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + stop_endpoints(subs, false); + fallthrough; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + snd_usb_endpoint_set_callback(subs->data_endpoint, + NULL, NULL, NULL); + subs->running = 0; + dev_dbg(&subs->dev->dev, "%d:%d Stop Capture PCM\n", + subs->cur_audiofmt->iface, + subs->cur_audiofmt->altsetting); + return 0; + } + + return -EINVAL; +} + +static const struct snd_pcm_ops snd_usb_playback_ops = { + .open = snd_usb_pcm_open, + .close = snd_usb_pcm_close, + .hw_params = snd_usb_hw_params, + .hw_free = snd_usb_hw_free, + .prepare = snd_usb_pcm_prepare, + .trigger = snd_usb_substream_playback_trigger, + .sync_stop = snd_usb_pcm_sync_stop, + .pointer = snd_usb_pcm_pointer, + .ack = snd_usb_pcm_playback_ack, +}; + +static const struct snd_pcm_ops snd_usb_capture_ops = { + .open = snd_usb_pcm_open, + .close = snd_usb_pcm_close, + .hw_params = snd_usb_hw_params, + .hw_free = snd_usb_hw_free, + .prepare = snd_usb_pcm_prepare, + .trigger = snd_usb_substream_capture_trigger, + .sync_stop = snd_usb_pcm_sync_stop, + .pointer = snd_usb_pcm_pointer, +}; + +void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream) +{ + const struct snd_pcm_ops *ops; + + ops = stream == SNDRV_PCM_STREAM_PLAYBACK ? + &snd_usb_playback_ops : &snd_usb_capture_ops; + snd_pcm_set_ops(pcm, stream, ops); +} + +void snd_usb_preallocate_buffer(struct snd_usb_substream *subs) +{ + struct snd_pcm *pcm = subs->stream->pcm; + struct snd_pcm_substream *s = pcm->streams[subs->direction].substream; + struct device *dev = subs->dev->bus->sysdev; + + if (snd_usb_use_vmalloc) + snd_pcm_set_managed_buffer(s, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); + else + snd_pcm_set_managed_buffer(s, SNDRV_DMA_TYPE_DEV_SG, + dev, 64*1024, 512*1024); +} diff --git a/sound/usb/pcm.h b/sound/usb/pcm.h new file mode 100644 index 000000000..388fe2ba3 --- /dev/null +++ b/sound/usb/pcm.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_PCM_H +#define __USBAUDIO_PCM_H + +void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream); +int snd_usb_pcm_suspend(struct snd_usb_stream *as); +int snd_usb_pcm_resume(struct snd_usb_stream *as); + +bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *as); + +int snd_usb_init_pitch(struct snd_usb_audio *chip, + const struct audioformat *fmt); +void snd_usb_preallocate_buffer(struct snd_usb_substream *subs); + +int snd_usb_audioformat_set_sync_ep(struct snd_usb_audio *chip, + struct audioformat *fmt); + +#endif /* __USBAUDIO_PCM_H */ diff --git a/sound/usb/power.c b/sound/usb/power.c new file mode 100644 index 000000000..606a2cb23 --- /dev/null +++ b/sound/usb/power.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * UAC3 Power Domain state management functions + */ + +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> +#include <linux/usb/audio-v3.h> + +#include "usbaudio.h" +#include "helper.h" +#include "power.h" + +struct snd_usb_power_domain * +snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface, + unsigned char id) +{ + struct snd_usb_power_domain *pd; + void *p; + + pd = kzalloc(sizeof(*pd), GFP_KERNEL); + if (!pd) + return NULL; + + p = NULL; + while ((p = snd_usb_find_csint_desc(ctrl_iface->extra, + ctrl_iface->extralen, + p, UAC3_POWER_DOMAIN)) != NULL) { + struct uac3_power_domain_descriptor *pd_desc = p; + int i; + + if (!snd_usb_validate_audio_desc(p, UAC_VERSION_3)) + continue; + for (i = 0; i < pd_desc->bNrEntities; i++) { + if (pd_desc->baEntityID[i] == id) { + pd->pd_id = pd_desc->bPowerDomainID; + pd->pd_d1d0_rec = + le16_to_cpu(pd_desc->waRecoveryTime1); + pd->pd_d2d0_rec = + le16_to_cpu(pd_desc->waRecoveryTime2); + return pd; + } + } + } + + kfree(pd); + return NULL; +} + +int snd_usb_power_domain_set(struct snd_usb_audio *chip, + struct snd_usb_power_domain *pd, + unsigned char state) +{ + struct usb_device *dev = chip->dev; + unsigned char current_state; + int err, idx; + + idx = snd_usb_ctrl_intf(chip) | (pd->pd_id << 8); + + err = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0), + UAC2_CS_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + UAC3_AC_POWER_DOMAIN_CONTROL << 8, idx, + ¤t_state, sizeof(current_state)); + if (err < 0) { + dev_err(&dev->dev, "Can't get UAC3 power state for id %d\n", + pd->pd_id); + return err; + } + + if (current_state == state) { + dev_dbg(&dev->dev, "UAC3 power domain id %d already in state %d\n", + pd->pd_id, state); + return 0; + } + + err = snd_usb_ctl_msg(chip->dev, usb_sndctrlpipe(chip->dev, 0), UAC2_CS_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + UAC3_AC_POWER_DOMAIN_CONTROL << 8, idx, + &state, sizeof(state)); + if (err < 0) { + dev_err(&dev->dev, "Can't set UAC3 power state to %d for id %d\n", + state, pd->pd_id); + return err; + } + + if (state == UAC3_PD_STATE_D0) { + switch (current_state) { + case UAC3_PD_STATE_D2: + udelay(pd->pd_d2d0_rec * 50); + break; + case UAC3_PD_STATE_D1: + udelay(pd->pd_d1d0_rec * 50); + break; + default: + return -EINVAL; + } + } + + dev_dbg(&dev->dev, "UAC3 power domain id %d change to state %d\n", + pd->pd_id, state); + + return 0; +} diff --git a/sound/usb/power.h b/sound/usb/power.h new file mode 100644 index 000000000..396e3e514 --- /dev/null +++ b/sound/usb/power.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_POWER_H +#define __USBAUDIO_POWER_H + +struct snd_usb_power_domain { + int pd_id; /* UAC3 Power Domain ID */ + int pd_d1d0_rec; /* D1 to D0 recovery time */ + int pd_d2d0_rec; /* D2 to D0 recovery time */ +}; + +enum { + UAC3_PD_STATE_D0, + UAC3_PD_STATE_D1, + UAC3_PD_STATE_D2, +}; + +int snd_usb_power_domain_set(struct snd_usb_audio *chip, + struct snd_usb_power_domain *pd, + unsigned char state); +struct snd_usb_power_domain * +snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface, + unsigned char id); + +int snd_usb_autoresume(struct snd_usb_audio *chip); +void snd_usb_autosuspend(struct snd_usb_audio *chip); + +#endif /* __USBAUDIO_POWER_H */ diff --git a/sound/usb/proc.c b/sound/usb/proc.c new file mode 100644 index 000000000..e9bbaea7b --- /dev/null +++ b/sound/usb/proc.c @@ -0,0 +1,237 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include <linux/init.h> +#include <linux/usb.h> + +#include <sound/core.h> +#include <sound/info.h> +#include <sound/pcm.h> + +#include "usbaudio.h" +#include "helper.h" +#include "card.h" +#include "endpoint.h" +#include "proc.h" + +/* convert our full speed USB rate into sampling rate in Hz */ +static inline unsigned get_full_speed_hz(unsigned int usb_rate) +{ + return (usb_rate * 125 + (1 << 12)) >> 13; +} + +/* convert our high speed USB rate into sampling rate in Hz */ +static inline unsigned get_high_speed_hz(unsigned int usb_rate) +{ + return (usb_rate * 125 + (1 << 9)) >> 10; +} + +/* + * common proc files to show the usb device info + */ +static void proc_audio_usbbus_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) +{ + struct snd_usb_audio *chip = entry->private_data; + if (!atomic_read(&chip->shutdown)) + snd_iprintf(buffer, "%03d/%03d\n", chip->dev->bus->busnum, chip->dev->devnum); +} + +static void proc_audio_usbid_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) +{ + struct snd_usb_audio *chip = entry->private_data; + if (!atomic_read(&chip->shutdown)) + snd_iprintf(buffer, "%04x:%04x\n", + USB_ID_VENDOR(chip->usb_id), + USB_ID_PRODUCT(chip->usb_id)); +} + +void snd_usb_audio_create_proc(struct snd_usb_audio *chip) +{ + snd_card_ro_proc_new(chip->card, "usbbus", chip, + proc_audio_usbbus_read); + snd_card_ro_proc_new(chip->card, "usbid", chip, + proc_audio_usbid_read); +} + +static const char * const channel_labels[] = { + [SNDRV_CHMAP_NA] = "N/A", + [SNDRV_CHMAP_MONO] = "MONO", + [SNDRV_CHMAP_FL] = "FL", + [SNDRV_CHMAP_FR] = "FR", + [SNDRV_CHMAP_FC] = "FC", + [SNDRV_CHMAP_LFE] = "LFE", + [SNDRV_CHMAP_RL] = "RL", + [SNDRV_CHMAP_RR] = "RR", + [SNDRV_CHMAP_FLC] = "FLC", + [SNDRV_CHMAP_FRC] = "FRC", + [SNDRV_CHMAP_RC] = "RC", + [SNDRV_CHMAP_SL] = "SL", + [SNDRV_CHMAP_SR] = "SR", + [SNDRV_CHMAP_TC] = "TC", + [SNDRV_CHMAP_TFL] = "TFL", + [SNDRV_CHMAP_TFC] = "TFC", + [SNDRV_CHMAP_TFR] = "TFR", + [SNDRV_CHMAP_TRL] = "TRL", + [SNDRV_CHMAP_TRC] = "TRC", + [SNDRV_CHMAP_TRR] = "TRR", + [SNDRV_CHMAP_TFLC] = "TFLC", + [SNDRV_CHMAP_TFRC] = "TFRC", + [SNDRV_CHMAP_LLFE] = "LLFE", + [SNDRV_CHMAP_RLFE] = "RLFE", + [SNDRV_CHMAP_TSL] = "TSL", + [SNDRV_CHMAP_TSR] = "TSR", + [SNDRV_CHMAP_BC] = "BC", + [SNDRV_CHMAP_RLC] = "RLC", + [SNDRV_CHMAP_RRC] = "RRC", +}; + +/* + * proc interface for list the supported pcm formats + */ +static void proc_dump_substream_formats(struct snd_usb_substream *subs, struct snd_info_buffer *buffer) +{ + struct audioformat *fp; + static const char * const sync_types[4] = { + "NONE", "ASYNC", "ADAPTIVE", "SYNC" + }; + + list_for_each_entry(fp, &subs->fmt_list, list) { + snd_pcm_format_t fmt; + + snd_iprintf(buffer, " Interface %d\n", fp->iface); + snd_iprintf(buffer, " Altset %d\n", fp->altsetting); + snd_iprintf(buffer, " Format:"); + pcm_for_each_format(fmt) + if (fp->formats & pcm_format_to_bits(fmt)) + snd_iprintf(buffer, " %s", + snd_pcm_format_name(fmt)); + snd_iprintf(buffer, "\n"); + snd_iprintf(buffer, " Channels: %d\n", fp->channels); + snd_iprintf(buffer, " Endpoint: 0x%02x (%d %s) (%s)\n", + fp->endpoint, + fp->endpoint & USB_ENDPOINT_NUMBER_MASK, + fp->endpoint & USB_DIR_IN ? "IN" : "OUT", + sync_types[(fp->ep_attr & USB_ENDPOINT_SYNCTYPE) >> 2]); + if (fp->rates & SNDRV_PCM_RATE_CONTINUOUS) { + snd_iprintf(buffer, " Rates: %d - %d (continuous)\n", + fp->rate_min, fp->rate_max); + } else { + unsigned int i; + snd_iprintf(buffer, " Rates: "); + for (i = 0; i < fp->nr_rates; i++) { + if (i > 0) + snd_iprintf(buffer, ", "); + snd_iprintf(buffer, "%d", fp->rate_table[i]); + } + snd_iprintf(buffer, "\n"); + } + if (subs->speed != USB_SPEED_FULL) + snd_iprintf(buffer, " Data packet interval: %d us\n", + 125 * (1 << fp->datainterval)); + snd_iprintf(buffer, " Bits: %d\n", fp->fmt_bits); + + if (fp->dsd_raw) + snd_iprintf(buffer, " DSD raw: DOP=%d, bitrev=%d\n", + fp->dsd_dop, fp->dsd_bitrev); + + if (fp->chmap) { + const struct snd_pcm_chmap_elem *map = fp->chmap; + int c; + + snd_iprintf(buffer, " Channel map:"); + for (c = 0; c < map->channels; c++) { + if (map->map[c] >= ARRAY_SIZE(channel_labels) || + !channel_labels[map->map[c]]) + snd_iprintf(buffer, " --"); + else + snd_iprintf(buffer, " %s", + channel_labels[map->map[c]]); + } + snd_iprintf(buffer, "\n"); + } + + if (fp->sync_ep) { + snd_iprintf(buffer, " Sync Endpoint: 0x%02x (%d %s)\n", + fp->sync_ep, + fp->sync_ep & USB_ENDPOINT_NUMBER_MASK, + fp->sync_ep & USB_DIR_IN ? "IN" : "OUT"); + snd_iprintf(buffer, " Sync EP Interface: %d\n", + fp->sync_iface); + snd_iprintf(buffer, " Sync EP Altset: %d\n", + fp->sync_altsetting); + snd_iprintf(buffer, " Implicit Feedback Mode: %s\n", + fp->implicit_fb ? "Yes" : "No"); + } + + // snd_iprintf(buffer, " Max Packet Size = %d\n", fp->maxpacksize); + // snd_iprintf(buffer, " EP Attribute = %#x\n", fp->attributes); + } +} + +static void proc_dump_ep_status(struct snd_usb_substream *subs, + struct snd_usb_endpoint *data_ep, + struct snd_usb_endpoint *sync_ep, + struct snd_info_buffer *buffer) +{ + if (!data_ep) + return; + snd_iprintf(buffer, " Packet Size = %d\n", data_ep->curpacksize); + snd_iprintf(buffer, " Momentary freq = %u Hz (%#x.%04x)\n", + subs->speed == USB_SPEED_FULL + ? get_full_speed_hz(data_ep->freqm) + : get_high_speed_hz(data_ep->freqm), + data_ep->freqm >> 16, data_ep->freqm & 0xffff); + if (sync_ep && data_ep->freqshift != INT_MIN) { + int res = 16 - data_ep->freqshift; + snd_iprintf(buffer, " Feedback Format = %d.%d\n", + (sync_ep->syncmaxsize > 3 ? 32 : 24) - res, res); + } +} + +static void proc_dump_substream_status(struct snd_usb_audio *chip, + struct snd_usb_substream *subs, + struct snd_info_buffer *buffer) +{ + mutex_lock(&chip->mutex); + if (subs->running) { + snd_iprintf(buffer, " Status: Running\n"); + if (subs->cur_audiofmt) { + snd_iprintf(buffer, " Interface = %d\n", subs->cur_audiofmt->iface); + snd_iprintf(buffer, " Altset = %d\n", subs->cur_audiofmt->altsetting); + } + proc_dump_ep_status(subs, subs->data_endpoint, subs->sync_endpoint, buffer); + } else { + snd_iprintf(buffer, " Status: Stop\n"); + } + mutex_unlock(&chip->mutex); +} + +static void proc_pcm_format_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) +{ + struct snd_usb_stream *stream = entry->private_data; + struct snd_usb_audio *chip = stream->chip; + + snd_iprintf(buffer, "%s : %s\n", chip->card->longname, stream->pcm->name); + + if (stream->substream[SNDRV_PCM_STREAM_PLAYBACK].num_formats) { + snd_iprintf(buffer, "\nPlayback:\n"); + proc_dump_substream_status(chip, &stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); + proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_PLAYBACK], buffer); + } + if (stream->substream[SNDRV_PCM_STREAM_CAPTURE].num_formats) { + snd_iprintf(buffer, "\nCapture:\n"); + proc_dump_substream_status(chip, &stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); + proc_dump_substream_formats(&stream->substream[SNDRV_PCM_STREAM_CAPTURE], buffer); + } +} + +void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream) +{ + char name[32]; + struct snd_card *card = stream->chip->card; + + sprintf(name, "stream%d", stream->pcm_index); + snd_card_ro_proc_new(card, name, stream, proc_pcm_format_read); +} + diff --git a/sound/usb/proc.h b/sound/usb/proc.h new file mode 100644 index 000000000..72b1b2d28 --- /dev/null +++ b/sound/usb/proc.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_PROC_H +#define __USBAUDIO_PROC_H + +void snd_usb_audio_create_proc(struct snd_usb_audio *chip); +void snd_usb_proc_pcm_format_add(struct snd_usb_stream *stream); + +#endif /* __USBAUDIO_PROC_H */ + diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h new file mode 100644 index 000000000..5d72dc844 --- /dev/null +++ b/sound/usb/quirks-table.h @@ -0,0 +1,4541 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * ALSA USB Audio Driver + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>, + * Clemens Ladisch <clemens@ladisch.de> + */ + +/* + * The contents of this file are part of the driver's id_table. + * + * In a perfect world, this file would be empty. + */ + +/* + * Use this for devices where other interfaces are standard compliant, + * to prevent the quirk being applied to those interfaces. (To work with + * hotplugging, bDeviceClass must be set to USB_CLASS_PER_INTERFACE.) + */ +#define USB_DEVICE_VENDOR_SPEC(vend, prod) \ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR | \ + USB_DEVICE_ID_MATCH_PRODUCT | \ + USB_DEVICE_ID_MATCH_INT_CLASS, \ + .idVendor = vend, \ + .idProduct = prod, \ + .bInterfaceClass = USB_CLASS_VENDOR_SPEC + +/* A standard entry matching with vid/pid and the audio class/subclass */ +#define USB_AUDIO_DEVICE(vend, prod) \ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \ + USB_DEVICE_ID_MATCH_INT_CLASS | \ + USB_DEVICE_ID_MATCH_INT_SUBCLASS, \ + .idVendor = vend, \ + .idProduct = prod, \ + .bInterfaceClass = USB_CLASS_AUDIO, \ + .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL + +/* FTDI devices */ +{ + USB_DEVICE(0x0403, 0xb8d8), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "STARR LABS", */ + /* .product_name = "Starr Labs MIDI USB device", */ + .ifnum = 0, + .type = QUIRK_MIDI_FTDI + } +}, + +{ + /* Creative BT-D1 */ + USB_DEVICE(0x041e, 0x0005), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 2, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x03, + .ep_attr = USB_ENDPOINT_XFER_ISOC, + .attributes = 0, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 48000, + .rate_max = 48000, + } + } +}, + +/* E-Mu 0202 USB */ +{ USB_DEVICE_VENDOR_SPEC(0x041e, 0x3f02) }, +/* E-Mu 0404 USB */ +{ USB_DEVICE_VENDOR_SPEC(0x041e, 0x3f04) }, +/* E-Mu Tracker Pre */ +{ USB_DEVICE_VENDOR_SPEC(0x041e, 0x3f0a) }, +/* E-Mu 0204 USB */ +{ USB_DEVICE_VENDOR_SPEC(0x041e, 0x3f19) }, +/* Ktmicro Usb_audio device */ +{ USB_DEVICE_VENDOR_SPEC(0x31b2, 0x0011) }, + +/* + * Creative Technology, Ltd Live! Cam Sync HD [VF0770] + * The device advertises 8 formats, but only a rate of 48kHz is honored by the + * hardware and 24 bits give chopped audio, so only report the one working + * combination. + */ +{ + USB_AUDIO_DEVICE(0x041e, 0x4095), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 3, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 2, + .fmt_bits = 16, + .iface = 3, + .altsetting = 4, + .altset_idx = 4, + .endpoint = 0x82, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 }, + }, + }, + { + .ifnum = -1 + }, + }, + }, +}, + +/* + * HP Wireless Audio + * When not ignored, causes instability issues for some users, forcing them to + * skip the entire module. + */ +{ + USB_DEVICE(0x0424, 0xb832), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Standard Microsystems Corp.", + .product_name = "HP Wireless Audio", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + /* Mixer */ + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE, + }, + /* Playback */ + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE, + }, + /* Capture */ + { + .ifnum = 2, + .type = QUIRK_IGNORE_INTERFACE, + }, + /* HID Device, .ifnum = 3 */ + { + .ifnum = -1, + } + } + } +}, + +/* + * Logitech QuickCam: bDeviceClass is vendor-specific, so generic interface + * class matches do not take effect without an explicit ID match. + */ +{ USB_AUDIO_DEVICE(0x046d, 0x0850) }, +{ USB_AUDIO_DEVICE(0x046d, 0x08ae) }, +{ USB_AUDIO_DEVICE(0x046d, 0x08c6) }, +{ USB_AUDIO_DEVICE(0x046d, 0x08f0) }, +{ USB_AUDIO_DEVICE(0x046d, 0x08f5) }, +{ USB_AUDIO_DEVICE(0x046d, 0x08f6) }, +{ USB_AUDIO_DEVICE(0x046d, 0x0990) }, + +/* + * Yamaha devices + */ + +#define YAMAHA_DEVICE(id, name) { \ + USB_DEVICE(0x0499, id), \ + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { \ + .vendor_name = "Yamaha", \ + .product_name = name, \ + .ifnum = QUIRK_ANY_INTERFACE, \ + .type = QUIRK_MIDI_YAMAHA \ + } \ +} +#define YAMAHA_INTERFACE(id, intf, name) { \ + USB_DEVICE_VENDOR_SPEC(0x0499, id), \ + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { \ + .vendor_name = "Yamaha", \ + .product_name = name, \ + .ifnum = intf, \ + .type = QUIRK_MIDI_YAMAHA \ + } \ +} +YAMAHA_DEVICE(0x1000, "UX256"), +YAMAHA_DEVICE(0x1001, "MU1000"), +YAMAHA_DEVICE(0x1002, "MU2000"), +YAMAHA_DEVICE(0x1003, "MU500"), +YAMAHA_INTERFACE(0x1004, 3, "UW500"), +YAMAHA_DEVICE(0x1005, "MOTIF6"), +YAMAHA_DEVICE(0x1006, "MOTIF7"), +YAMAHA_DEVICE(0x1007, "MOTIF8"), +YAMAHA_DEVICE(0x1008, "UX96"), +YAMAHA_DEVICE(0x1009, "UX16"), +YAMAHA_INTERFACE(0x100a, 3, "EOS BX"), +YAMAHA_DEVICE(0x100c, "UC-MX"), +YAMAHA_DEVICE(0x100d, "UC-KX"), +YAMAHA_DEVICE(0x100e, "S08"), +YAMAHA_DEVICE(0x100f, "CLP-150"), +YAMAHA_DEVICE(0x1010, "CLP-170"), +YAMAHA_DEVICE(0x1011, "P-250"), +YAMAHA_DEVICE(0x1012, "TYROS"), +YAMAHA_DEVICE(0x1013, "PF-500"), +YAMAHA_DEVICE(0x1014, "S90"), +YAMAHA_DEVICE(0x1015, "MOTIF-R"), +YAMAHA_DEVICE(0x1016, "MDP-5"), +YAMAHA_DEVICE(0x1017, "CVP-204"), +YAMAHA_DEVICE(0x1018, "CVP-206"), +YAMAHA_DEVICE(0x1019, "CVP-208"), +YAMAHA_DEVICE(0x101a, "CVP-210"), +YAMAHA_DEVICE(0x101b, "PSR-1100"), +YAMAHA_DEVICE(0x101c, "PSR-2100"), +YAMAHA_DEVICE(0x101d, "CLP-175"), +YAMAHA_DEVICE(0x101e, "PSR-K1"), +YAMAHA_DEVICE(0x101f, "EZ-J24"), +YAMAHA_DEVICE(0x1020, "EZ-250i"), +YAMAHA_DEVICE(0x1021, "MOTIF ES 6"), +YAMAHA_DEVICE(0x1022, "MOTIF ES 7"), +YAMAHA_DEVICE(0x1023, "MOTIF ES 8"), +YAMAHA_DEVICE(0x1024, "CVP-301"), +YAMAHA_DEVICE(0x1025, "CVP-303"), +YAMAHA_DEVICE(0x1026, "CVP-305"), +YAMAHA_DEVICE(0x1027, "CVP-307"), +YAMAHA_DEVICE(0x1028, "CVP-309"), +YAMAHA_DEVICE(0x1029, "CVP-309GP"), +YAMAHA_DEVICE(0x102a, "PSR-1500"), +YAMAHA_DEVICE(0x102b, "PSR-3000"), +YAMAHA_DEVICE(0x102e, "ELS-01/01C"), +YAMAHA_DEVICE(0x1030, "PSR-295/293"), +YAMAHA_DEVICE(0x1031, "DGX-205/203"), +YAMAHA_DEVICE(0x1032, "DGX-305"), +YAMAHA_DEVICE(0x1033, "DGX-505"), +YAMAHA_DEVICE(0x1034, NULL), +YAMAHA_DEVICE(0x1035, NULL), +YAMAHA_DEVICE(0x1036, NULL), +YAMAHA_DEVICE(0x1037, NULL), +YAMAHA_DEVICE(0x1038, NULL), +YAMAHA_DEVICE(0x1039, NULL), +YAMAHA_DEVICE(0x103a, NULL), +YAMAHA_DEVICE(0x103b, NULL), +YAMAHA_DEVICE(0x103c, NULL), +YAMAHA_DEVICE(0x103d, NULL), +YAMAHA_DEVICE(0x103e, NULL), +YAMAHA_DEVICE(0x103f, NULL), +YAMAHA_DEVICE(0x1040, NULL), +YAMAHA_DEVICE(0x1041, NULL), +YAMAHA_DEVICE(0x1042, NULL), +YAMAHA_DEVICE(0x1043, NULL), +YAMAHA_DEVICE(0x1044, NULL), +YAMAHA_DEVICE(0x1045, NULL), +YAMAHA_INTERFACE(0x104e, 0, NULL), +YAMAHA_DEVICE(0x104f, NULL), +YAMAHA_DEVICE(0x1050, NULL), +YAMAHA_DEVICE(0x1051, NULL), +YAMAHA_DEVICE(0x1052, NULL), +YAMAHA_INTERFACE(0x1053, 0, NULL), +YAMAHA_INTERFACE(0x1054, 0, NULL), +YAMAHA_DEVICE(0x1055, NULL), +YAMAHA_DEVICE(0x1056, NULL), +YAMAHA_DEVICE(0x1057, NULL), +YAMAHA_DEVICE(0x1058, NULL), +YAMAHA_DEVICE(0x1059, NULL), +YAMAHA_DEVICE(0x105a, NULL), +YAMAHA_DEVICE(0x105b, NULL), +YAMAHA_DEVICE(0x105c, NULL), +YAMAHA_DEVICE(0x105d, NULL), +{ + USB_DEVICE(0x0499, 0x1503), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Yamaha", */ + /* .product_name = "MOX6/MOX8", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_YAMAHA + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0499, 0x1507), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Yamaha", */ + /* .product_name = "THR10", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_YAMAHA + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0499, 0x1509), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Yamaha", */ + /* .product_name = "Steinberg UR22", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_YAMAHA + }, + { + .ifnum = 4, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0499, 0x150a), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Yamaha", */ + /* .product_name = "THR5A", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_YAMAHA + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0499, 0x150c), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Yamaha", */ + /* .product_name = "THR10C", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_YAMAHA + }, + { + .ifnum = -1 + } + } + } +}, +YAMAHA_DEVICE(0x2000, "DGP-7"), +YAMAHA_DEVICE(0x2001, "DGP-5"), +YAMAHA_DEVICE(0x2002, NULL), +YAMAHA_DEVICE(0x2003, NULL), +YAMAHA_DEVICE(0x5000, "CS1D"), +YAMAHA_DEVICE(0x5001, "DSP1D"), +YAMAHA_DEVICE(0x5002, "DME32"), +YAMAHA_DEVICE(0x5003, "DM2000"), +YAMAHA_DEVICE(0x5004, "02R96"), +YAMAHA_DEVICE(0x5005, "ACU16-C"), +YAMAHA_DEVICE(0x5006, "NHB32-C"), +YAMAHA_DEVICE(0x5007, "DM1000"), +YAMAHA_DEVICE(0x5008, "01V96"), +YAMAHA_DEVICE(0x5009, "SPX2000"), +YAMAHA_DEVICE(0x500a, "PM5D"), +YAMAHA_DEVICE(0x500b, "DME64N"), +YAMAHA_DEVICE(0x500c, "DME24N"), +YAMAHA_DEVICE(0x500d, NULL), +YAMAHA_DEVICE(0x500e, NULL), +YAMAHA_DEVICE(0x500f, NULL), +YAMAHA_DEVICE(0x7000, "DTX"), +YAMAHA_DEVICE(0x7010, "UB99"), +#undef YAMAHA_DEVICE +#undef YAMAHA_INTERFACE +/* this catches most recent vendor-specific Yamaha devices */ +{ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_INT_CLASS, + .idVendor = 0x0499, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_AUTODETECT + } +}, + +/* + * Roland/RolandED/Edirol/BOSS devices + */ +{ + USB_DEVICE(0x0582, 0x0000), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "UA-100", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 4, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x01, + .ep_attr = 0x09, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 44100, + .rate_max = 44100, + } + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 2, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_FILL_MAX, + .endpoint = 0x81, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 44100, + .rate_max = 44100, + } + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0007, + .in_cables = 0x0007 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x0002), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UM-4", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x000f, + .in_cables = 0x000f + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x0003), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "SC-8850", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x003f, + .in_cables = 0x003f + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x0004), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "U-8", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0005, + .in_cables = 0x0005 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* Has ID 0x0099 when not in "Advanced Driver" mode. + * The UM-2EX has only one input, but we cannot detect this. */ + USB_DEVICE(0x0582, 0x0005), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UM-2", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0003 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x0007), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "SC-8820", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0013, + .in_cables = 0x0013 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x0008), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "PC-300", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x009d when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0009), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UM-1", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x000b), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "SK-500", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0013, + .in_cables = 0x0013 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* thanks to Emiliano Grilli <emillo@libero.it> + * for helping researching this data */ + USB_DEVICE(0x0582, 0x000c), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "SC-D70", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0007, + .in_cables = 0x0007 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ /* + * This quirk is for the "Advanced Driver" mode of the Edirol UA-5. + * If the advanced mode switch at the back of the unit is off, the + * UA-5 has ID 0x0582/0x0011 and is standard compliant (no quirks), + * but offers only 16-bit PCM. + * In advanced mode, the UA-5 will output S24_3LE samples (two + * channels) at the rate indicated on the front switch, including + * the 96kHz sample rate. + */ + USB_DEVICE(0x0582, 0x0010), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UA-5", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x0013 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0012), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "XV-5050", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* has ID 0x0015 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0014), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UM-880", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x01ff, + .in_cables = 0x01ff + } + } +}, +{ + /* has ID 0x0017 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0016), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "SD-90", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x000f, + .in_cables = 0x000f + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x001c when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x001b), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "MMP-2", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x001e when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x001d), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "V-SYNTH", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* has ID 0x0024 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0023), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UM-550", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x003f, + .in_cables = 0x003f + } + } +}, +{ + /* + * This quirk is for the "Advanced Driver" mode. If off, the UA-20 + * has ID 0x0026 and is standard compliant, but has only 16-bit PCM + * and no MIDI. + */ + USB_DEVICE(0x0582, 0x0025), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UA-20", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 2, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x01, + .ep_attr = 0x01, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 44100, + .rate_max = 44100, + } + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 2, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x82, + .ep_attr = 0x01, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 44100, + .rate_max = 44100, + } + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x0028 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0027), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "SD-20", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0007 + } + } +}, +{ + /* has ID 0x002a when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0029), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "SD-80", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x000f, + .in_cables = 0x000f + } + } +}, +{ /* + * This quirk is for the "Advanced" modes of the Edirol UA-700. + * If the sample format switch is not in an advanced setting, the + * UA-700 has ID 0x0582/0x002c and is standard compliant (no quirks), + * but offers only 16-bit PCM and no MIDI. + */ + USB_DEVICE_VENDOR_SPEC(0x0582, 0x002b), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UA-700", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 3, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x002e when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x002d), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "XV-2020", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* has ID 0x0030 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x002f), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "VariOS", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0007, + .in_cables = 0x0007 + } + } +}, +{ + /* has ID 0x0034 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0033), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "PCR", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0007 + } + } +}, +{ + /* + * Has ID 0x0038 when not in "Advanced Driver" mode; + * later revisions use IDs 0x0054 and 0x00a2. + */ + USB_DEVICE(0x0582, 0x0037), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "Digital Piano", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* + * This quirk is for the "Advanced Driver" mode. If off, the GS-10 + * has ID 0x003c and is standard compliant, but has only 16-bit PCM + * and no MIDI. + */ + USB_DEVICE_VENDOR_SPEC(0x0582, 0x003b), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "BOSS", + .product_name = "GS-10", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x0041 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0040), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "GI-20", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* has ID 0x0043 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0042), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "RS-70", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* has ID 0x0049 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0047), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "EDIROL", */ + /* .product_name = "UR-80", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + /* in the 96 kHz modes, only interface 1 is there */ + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x004a when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0048), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "EDIROL", */ + /* .product_name = "UR-80", */ + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0007 + } + } +}, +{ + /* has ID 0x004e when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x004c), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "PCR-A", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x004f when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x004d), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "PCR-A", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0007 + } + } +}, +{ + /* + * This quirk is for the "Advanced Driver" mode. If off, the UA-3FX + * is standard compliant, but has only 16-bit PCM. + */ + USB_DEVICE(0x0582, 0x0050), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UA-3FX", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x0052), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UM-1SX", + .ifnum = 0, + .type = QUIRK_MIDI_STANDARD_INTERFACE + } +}, +{ + USB_DEVICE(0x0582, 0x0060), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "EXR Series", + .ifnum = 0, + .type = QUIRK_MIDI_STANDARD_INTERFACE + } +}, +{ + /* has ID 0x0066 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0064), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "EDIROL", */ + /* .product_name = "PCR-1", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x0067 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0065), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "EDIROL", */ + /* .product_name = "PCR-1", */ + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0003 + } + } +}, +{ + /* has ID 0x006e when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x006d), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "FANTOM-X", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ /* + * This quirk is for the "Advanced" modes of the Edirol UA-25. + * If the switch is not in an advanced setting, the UA-25 has + * ID 0x0582/0x0073 and is standard compliant (no quirks), but + * offers only 16-bit PCM at 44.1 kHz and no MIDI. + */ + USB_DEVICE_VENDOR_SPEC(0x0582, 0x0074), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UA-25", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* has ID 0x0076 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0075), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "BOSS", + .product_name = "DR-880", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* has ID 0x007b when not in "Advanced Driver" mode */ + USB_DEVICE_VENDOR_SPEC(0x0582, 0x007a), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + /* "RD" or "RD-700SX"? */ + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0003 + } + } +}, +{ + /* has ID 0x0081 when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x0080), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Roland", + .product_name = "G-70", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* has ID 0x008c when not in "Advanced Driver" mode */ + USB_DEVICE(0x0582, 0x008b), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "PC-50", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + /* + * This quirk is for the "Advanced Driver" mode. If off, the UA-4FX + * is standard compliant, but has only 16-bit PCM and no MIDI. + */ + USB_DEVICE(0x0582, 0x00a3), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UA-4FX", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* Edirol M-16DX */ + USB_DEVICE(0x0582, 0x00c4), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* Advanced modes of the Edirol UA-25EX. + * For the standard mode, UA-25EX has ID 0582:00e7, which + * offers only 16-bit PCM at 44.1 kHz and no MIDI. + */ + USB_DEVICE_VENDOR_SPEC(0x0582, 0x00e6), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "EDIROL", + .product_name = "UA-25EX", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_EDIROL_UAXX + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* Edirol UM-3G */ + USB_DEVICE_VENDOR_SPEC(0x0582, 0x0108), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0007, + .in_cables = 0x0007 + } + } +}, +{ + /* BOSS ME-25 */ + USB_DEVICE(0x0582, 0x0113), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* only 44.1 kHz works at the moment */ + USB_DEVICE(0x0582, 0x0120), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Roland", */ + /* .product_name = "OCTO-CAPTURE", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 10, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x05, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 12, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x85, + .ep_attr = 0x25, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = 3, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 4, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* only 44.1 kHz works at the moment */ + USB_DEVICE(0x0582, 0x012f), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Roland", */ + /* .product_name = "QUAD-CAPTURE", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 4, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x05, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 6, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x85, + .ep_attr = 0x25, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = 3, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 4, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0582, 0x0159), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Roland", */ + /* .product_name = "UA-22", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, + +/* UA101 and co are supported by another driver */ +{ + USB_DEVICE(0x0582, 0x0044), /* UA-1000 high speed */ + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_NODEV_INTERFACE + }, +}, +{ + USB_DEVICE(0x0582, 0x007d), /* UA-101 high speed */ + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_NODEV_INTERFACE + }, +}, +{ + USB_DEVICE(0x0582, 0x008d), /* UA-101 full speed */ + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_NODEV_INTERFACE + }, +}, + +/* this catches most recent vendor-specific Roland devices */ +{ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_INT_CLASS, + .idVendor = 0x0582, + .bInterfaceClass = USB_CLASS_VENDOR_SPEC, + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_AUTODETECT + } +}, + +/* Guillemot devices */ +{ + /* + * This is for the "Windows Edition" where the external MIDI ports are + * the only MIDI ports; the control data is reported through HID + * interfaces. The "Macintosh Edition" has ID 0xd002 and uses standard + * compliant USB MIDI ports for external MIDI and controls. + */ + USB_DEVICE_VENDOR_SPEC(0x06f8, 0xb000), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Hercules", + .product_name = "DJ Console (WE)", + .ifnum = 4, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, + +/* Midiman/M-Audio devices */ +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x1002), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "MidiSport 2x2", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0003 + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x1011), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "MidiSport 1x1", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x1015), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "Keystation", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x1021), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "MidiSport 4x4", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x000f, + .in_cables = 0x000f + } + } +}, +{ + /* + * For hardware revision 1.05; in the later revisions (1.10 and + * 1.21), 0x1031 is the ID for the device without firmware. + * Thanks to Olaf Giesbrecht <Olaf_Giesbrecht@yahoo.de> + */ + USB_DEVICE_VER(0x0763, 0x1031, 0x0100, 0x0109), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "MidiSport 8x8", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x01ff, + .in_cables = 0x01ff + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x1033), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "MidiSport 8x8", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x01ff, + .in_cables = 0x01ff + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x1041), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "MidiSport 2x4", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x000f, + .in_cables = 0x0003 + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x2001), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "Quattro", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + /* + * Interfaces 0-2 are "Windows-compatible", 16-bit only, + * and share endpoints with the other interfaces. + * Ignore them. The other interfaces can do 24 bits, + * but captured samples are big-endian (see usbaudio.c). + */ + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 4, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 5, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 6, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 7, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 8, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 9, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x2003), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "AudioPhile", + .ifnum = 6, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x2008), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "Ozone", + .ifnum = 3, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x200d), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "M-Audio", + .product_name = "OmniStudio", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 4, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 5, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 6, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 7, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 8, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 9, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x0763, 0x2019), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "M-Audio", */ + /* .product_name = "Ozone Academic", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_MIDIMAN, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* M-Audio Micro */ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x201a), +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x2030), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + /* .vendor_name = "M-Audio", */ + /* .product_name = "Fast Track C400", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + /* Playback */ + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 6, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x01, + .ep_attr = 0x09, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + }, + .clock = 0x80, + } + }, + /* Capture */ + { + .ifnum = 3, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 3, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x81, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + }, + .clock = 0x80, + } + }, + /* MIDI */ + { + .ifnum = -1 /* Interface = 4 */ + } + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x2031), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + /* .vendor_name = "M-Audio", */ + /* .product_name = "Fast Track C600", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + /* Playback */ + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x01, + .ep_attr = 0x09, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + }, + .clock = 0x80, + } + }, + /* Capture */ + { + .ifnum = 3, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 6, + .iface = 3, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x81, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + }, + .clock = 0x80, + } + }, + /* MIDI */ + { + .ifnum = -1 /* Interface = 4 */ + } + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x2080), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "M-Audio", */ + /* .product_name = "Fast Track Ultra", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x01, + .ep_attr = 0x09, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + } + } + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x81, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + } + } + }, + /* interface 3 (MIDI) is standard compliant */ + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0763, 0x2081), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "M-Audio", */ + /* .product_name = "Fast Track Ultra 8R", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x01, + .ep_attr = 0x09, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + } + } + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x81, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + } + } + }, + /* interface 3 (MIDI) is standard compliant */ + { + .ifnum = -1 + } + } + } +}, + +/* Casio devices */ +{ + USB_DEVICE(0x07cf, 0x6801), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Casio", + .product_name = "PL-40R", + .ifnum = 0, + .type = QUIRK_MIDI_YAMAHA + } +}, +{ + /* this ID is used by several devices without a product ID */ + USB_DEVICE(0x07cf, 0x6802), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Casio", + .product_name = "Keyboard", + .ifnum = 0, + .type = QUIRK_MIDI_YAMAHA + } +}, + +/* Mark of the Unicorn devices */ +{ + /* thanks to Robert A. Lerche <ral 'at' msbit.com> */ + .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_PRODUCT | + USB_DEVICE_ID_MATCH_DEV_SUBCLASS, + .idVendor = 0x07fd, + .idProduct = 0x0001, + .bDeviceSubClass = 2, + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "MOTU", + .product_name = "Fastlane", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_MIDI_RAW_BYTES + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, + +/* Emagic devices */ +{ + USB_DEVICE(0x086a, 0x0001), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Emagic", + .product_name = "Unitor8", + .ifnum = 2, + .type = QUIRK_MIDI_EMAGIC, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x80ff, + .in_cables = 0x80ff + } + } +}, +{ + USB_DEVICE(0x086a, 0x0002), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Emagic", + /* .product_name = "AMT8", */ + .ifnum = 2, + .type = QUIRK_MIDI_EMAGIC, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x80ff, + .in_cables = 0x80ff + } + } +}, +{ + USB_DEVICE(0x086a, 0x0003), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Emagic", + /* .product_name = "MT4", */ + .ifnum = 2, + .type = QUIRK_MIDI_EMAGIC, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x800f, + .in_cables = 0x8003 + } + } +}, + +/* KORG devices */ +{ + USB_DEVICE_VENDOR_SPEC(0x0944, 0x0200), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "KORG, Inc.", + /* .product_name = "PANDORA PX5D", */ + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE, + } +}, + +{ + USB_DEVICE_VENDOR_SPEC(0x0944, 0x0201), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "KORG, Inc.", + /* .product_name = "ToneLab ST", */ + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE, + } +}, + +{ + USB_DEVICE_VENDOR_SPEC(0x0944, 0x0204), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "KORG, Inc.", + /* .product_name = "ToneLab EX", */ + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE, + } +}, + +/* AKAI devices */ +{ + USB_DEVICE(0x09e8, 0x0062), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "AKAI", + .product_name = "MPD16", + .ifnum = 0, + .type = QUIRK_MIDI_AKAI, + } +}, + +{ + /* Akai MPC Element */ + USB_DEVICE(0x09e8, 0x0021), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_MIDI_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, + +/* Steinberg devices */ +{ + /* Steinberg MI2 */ + USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x2040), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &(const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* Steinberg MI4 */ + USB_DEVICE_VENDOR_SPEC(0x0a4e, 0x4040), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = & (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &(const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, + +/* TerraTec devices */ +{ + USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0012), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "TerraTec", + .product_name = "PHASE 26", + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0013), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "TerraTec", + .product_name = "PHASE 26", + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0014), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "TerraTec", + .product_name = "PHASE 26", + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE + } +}, +{ + USB_DEVICE(0x0ccd, 0x0035), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Miditech", + .product_name = "Play'n Roll", + .ifnum = 0, + .type = QUIRK_MIDI_CME + } +}, + +/* Novation EMS devices */ +{ + USB_DEVICE_VENDOR_SPEC(0x1235, 0x0001), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Novation", + .product_name = "ReMOTE Audio/XStation", + .ifnum = 4, + .type = QUIRK_MIDI_NOVATION + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x1235, 0x0002), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Novation", + .product_name = "Speedio", + .ifnum = 3, + .type = QUIRK_MIDI_NOVATION + } +}, +{ + USB_DEVICE(0x1235, 0x000a), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Novation", */ + /* .product_name = "Nocturn", */ + .ifnum = 0, + .type = QUIRK_MIDI_RAW_BYTES + } +}, +{ + USB_DEVICE(0x1235, 0x000e), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "Novation", */ + /* .product_name = "Launchpad", */ + .ifnum = 0, + .type = QUIRK_MIDI_RAW_BYTES + } +}, +{ + USB_DEVICE(0x1235, 0x0010), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Focusrite", + .product_name = "Saffire 6 USB", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC, + .datainterval = 1, + .maxpacksize = 0x024c, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000, + .rate_min = 44100, + .rate_max = 48000, + .nr_rates = 2, + .rate_table = (unsigned int[]) { + 44100, 48000 + }, + .sync_ep = 0x82, + .sync_iface = 0, + .sync_altsetting = 1, + .sync_ep_idx = 1, + .implicit_fb = 1, + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 2, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC, + .datainterval = 1, + .maxpacksize = 0x0126, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000, + .rate_min = 44100, + .rate_max = 48000, + .nr_rates = 2, + .rate_table = (unsigned int[]) { + 44100, 48000 + } + } + }, + { + .ifnum = 1, + .type = QUIRK_MIDI_RAW_BYTES + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE(0x1235, 0x0018), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Novation", + .product_name = "Twitch", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = & (const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000, + .rate_min = 44100, + .rate_max = 48000, + .nr_rates = 2, + .rate_table = (unsigned int[]) { + 44100, 48000 + } + } + }, + { + .ifnum = 1, + .type = QUIRK_MIDI_RAW_BYTES + }, + { + .ifnum = -1 + } + } + } +}, +{ + USB_DEVICE_VENDOR_SPEC(0x1235, 0x4661), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Novation", + .product_name = "ReMOTE25", + .ifnum = 0, + .type = QUIRK_MIDI_NOVATION + } +}, + +/* Access Music devices */ +{ + /* VirusTI Desktop */ + USB_DEVICE_VENDOR_SPEC(0x133e, 0x0815), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 3, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &(const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0003 + } + }, + { + .ifnum = 4, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, + +/* Native Instruments MK2 series */ +{ + /* Komplete Audio 6 */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x17cc, + .idProduct = 0x1000, +}, +{ + /* Traktor Audio 6 */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x17cc, + .idProduct = 0x1010, +}, +{ + /* Traktor Audio 10 */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x17cc, + .idProduct = 0x1020, +}, + +/* QinHeng devices */ +{ + USB_DEVICE(0x1a86, 0x752d), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "QinHeng", + .product_name = "CH345", + .ifnum = 1, + .type = QUIRK_MIDI_CH345 + } +}, + +/* KeithMcMillen Stringport */ +{ USB_DEVICE(0x1f38, 0x0001) }, /* FIXME: should be more restrictive matching */ + +/* Miditech devices */ +{ + USB_DEVICE(0x4752, 0x0011), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Miditech", + .product_name = "Midistart-2", + .ifnum = 0, + .type = QUIRK_MIDI_CME + } +}, + +/* Central Music devices */ +{ + /* this ID used by both Miditech MidiStudio-2 and CME UF-x */ + USB_DEVICE(0x7104, 0x2202), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = 0, + .type = QUIRK_MIDI_CME + } +}, + +/* Digidesign Mbox */ +{ + /* Thanks to Clemens Ladisch <clemens@ladisch.de> */ + USB_DEVICE(0x0dba, 0x1000), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Digidesign", + .product_name = "MBox", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]){ + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .channels = 2, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0x4, + .endpoint = 0x02, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_SYNC, + .maxpacksize = 0x130, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .channels = 2, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0x4, + .endpoint = 0x81, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .maxpacksize = 0x130, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = -1 + } + } + } +}, + +/* DIGIDESIGN MBOX 2 */ +{ + USB_DEVICE(0x0dba, 0x3000), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Digidesign", + .product_name = "Mbox 2", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .channels = 2, + .iface = 2, + .altsetting = 2, + .altset_idx = 1, + .attributes = 0x00, + .endpoint = 0x03, + .ep_attr = USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 3, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 4, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .channels = 2, + .iface = 4, + .altsetting = 2, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x85, + .ep_attr = USB_ENDPOINT_SYNC_SYNC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 5, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 6, + .type = QUIRK_MIDI_MIDIMAN, + .data = &(const struct snd_usb_midi_endpoint_info) { + .out_ep = 0x02, + .out_cables = 0x0001, + .in_ep = 0x81, + .in_interval = 0x01, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +/* DIGIDESIGN MBOX 3 */ +{ + USB_DEVICE(0x0dba, 0x5000), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Digidesign", + .product_name = "Mbox 3", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0x00, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 3, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 3, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x81, + .attributes = 0x00, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .maxpacksize = 0x009c, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 4, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &(const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* Tascam US122 MKII - playback-only support */ + USB_DEVICE_VENDOR_SPEC(0x0644, 0x8021), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "TASCAM", + .product_name = "US122 MKII", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 2, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x02, + .ep_attr = USB_ENDPOINT_XFER_ISOC, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_88200 | + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 4, + .rate_table = (unsigned int[]) { + 44100, 48000, 88200, 96000 + } + } + }, + { + .ifnum = -1 + } + } + } +}, + +/* Denon DN-X1600 */ +{ + USB_AUDIO_DEVICE(0x154e, 0x500e), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Denon", + .product_name = "DN-X1600", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]){ + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE, + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0x0, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ADAPTIVE, + .maxpacksize = 0x138, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0x0, + .endpoint = 0x85, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ADAPTIVE, + .maxpacksize = 0x138, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 4, + .type = QUIRK_MIDI_STANDARD_INTERFACE, + }, + { + .ifnum = -1 + } + } + } +}, + +/* Microsoft XboxLive Headset/Xbox Communicator */ +{ + USB_DEVICE(0x045e, 0x0283), + .bInterfaceClass = USB_CLASS_PER_INTERFACE, + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Microsoft", + .product_name = "XboxLive Headset/Xbox Communicator", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + /* playback */ + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 1, + .iface = 0, + .altsetting = 0, + .altset_idx = 0, + .attributes = 0, + .endpoint = 0x04, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 22050, + .rate_max = 22050 + } + }, + { + /* capture */ + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 1, + .iface = 1, + .altsetting = 0, + .altset_idx = 0, + .attributes = 0, + .endpoint = 0x85, + .ep_attr = 0x05, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 16000, + .rate_max = 16000 + } + }, + { + .ifnum = -1 + } + } + } +}, + +/* Reloop Play */ +{ + USB_DEVICE(0x200c, 0x100b), + .bInterfaceClass = USB_CLASS_PER_INTERFACE, + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_SYNC_ADAPTIVE, + .rates = SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000, + .rate_min = 44100, + .rate_max = 48000, + .nr_rates = 2, + .rate_table = (unsigned int[]) { + 44100, 48000 + } + } + }, + { + .ifnum = -1 + } + } + } +}, + +{ + /* + * ZOOM R16/24 in audio interface mode. + * Playback requires an extra four byte LE length indicator + * at the start of each isochronous packet. This quirk is + * enabled in create_standard_audio_quirk(). + */ + USB_DEVICE(0x1686, 0x00dd), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + /* Playback */ + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE, + }, + { + /* Capture */ + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE, + }, + { + /* Midi */ + .ifnum = 3, + .type = QUIRK_MIDI_STANDARD_INTERFACE + }, + { + .ifnum = -1 + }, + } + } +}, + +{ + /* + * Some USB MIDI devices don't have an audio control interface, + * so we have to grab MIDI streaming interfaces here. + */ + .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS | + USB_DEVICE_ID_MATCH_INT_SUBCLASS, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = USB_SUBCLASS_MIDISTREAMING, + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_MIDI_STANDARD_INTERFACE + } +}, + +/* Rane SL-1 */ +{ + USB_DEVICE(0x13e5, 0x0001), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + } +}, + +/* disabled due to regression for other devices; + * see https://bugzilla.kernel.org/show_bug.cgi?id=199905 + */ +#if 0 +{ + /* + * Nura's first gen headphones use Cambridge Silicon Radio's vendor + * ID, but it looks like the product ID actually is only for Nura. + * The capture interface does not work at all (even on Windows), + * and only the 48 kHz sample rate works for the playback interface. + */ + USB_DEVICE(0x0a12, 0x1243), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + /* Capture */ + { + .ifnum = 1, + .type = QUIRK_IGNORE_INTERFACE, + }, + /* Playback */ + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 2, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_FILL_MAX | + UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x03, + .ep_attr = USB_ENDPOINT_XFER_ISOC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = -1 + }, + } + } +}, +#endif /* disabled */ + +{ + /* + * Bower's & Wilkins PX headphones only support the 48 kHz sample rate + * even though it advertises more. The capture interface doesn't work + * even on windows. + */ + USB_DEVICE(0x19b5, 0x0021), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + /* Playback */ + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 2, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .attributes = UAC_EP_CS_ATTR_FILL_MAX | + UAC_EP_CS_ATTR_SAMPLE_RATE, + .endpoint = 0x03, + .ep_attr = USB_ENDPOINT_XFER_ISOC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = -1 + }, + } + } +}, +/* MOTU Microbook II */ +{ + USB_DEVICE_VENDOR_SPEC(0x07fd, 0x0004), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "MOTU", + .product_name = "MicroBookII", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .channels = 6, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x84, + .rates = SNDRV_PCM_RATE_96000, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rate_min = 96000, + .rate_max = 96000, + .nr_rates = 1, + .maxpacksize = 0x00d8, + .rate_table = (unsigned int[]) { + 96000 + } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3BE, + .channels = 8, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x03, + .ep_idx = 1, + .rates = SNDRV_PCM_RATE_96000, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rate_min = 96000, + .rate_max = 96000, + .nr_rates = 1, + .maxpacksize = 0x0120, + .rate_table = (unsigned int[]) { + 96000 + } + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * PIONEER DJ DDJ-SX3 + * PCM is 12 channels out, 10 channels in @ 44.1 fixed + * interface 0, vendor class alt setting 1 for endpoints 5 and 0x86 + * The feedback for the output is the input. + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x0023), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 12, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x05, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 10, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x86, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Pioneer DJ DJM-250MK2 + * PCM is 8 channels out @ 48 fixed (endpoint 0x01) + * and 8 channels in @ 48 fixed (endpoint 0x82). + * + * Both playback and recording is working, even simultaneously. + * + * Playback channels could be mapped to: + * - CH1 + * - CH2 + * - AUX + * + * Recording channels could be mapped to: + * - Post CH1 Fader + * - Post CH2 Fader + * - Cross Fader A + * - Cross Fader B + * - MIC + * - AUX + * - REC OUT + * + * There is remaining problem with recording directly from PHONO/LINE. + * If we map a channel to: + * - CH1 Control Tone PHONO + * - CH1 Control Tone LINE + * - CH2 Control Tone PHONO + * - CH2 Control Tone LINE + * it is silent. + * There is no signal even on other operating systems with official drivers. + * The signal appears only when a supported application is started. + * This needs to be investigated yet... + * (there is quite a lot communication on the USB in both directions) + * + * In current version this mixer could be used for playback + * and for recording from vinyls (through Post CH* Fader) + * but not for DVS (Digital Vinyl Systems) like in Mixxx. + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x0017), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, // outputs + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, // inputs + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 } + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * PIONEER DJ DDJ-RB + * PCM is 4 channels out, 2 dummy channels in @ 44.1 fixed + * The feedback for the output is the dummy input. + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x000e), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 2, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = -1 + } + } + } +}, + +{ + /* + * PIONEER DJ DDJ-RR + * PCM is 6 channels out & 4 channels in @ 44.1 fixed + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x000d), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 6, //Master, Headphones & Booth + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, //2x RCA inputs (CH1 & CH2) + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = -1 + } + } + } +}, + +{ + /* + * PIONEER DJ DDJ-SR2 + * PCM is 4 channels out, 6 channels in @ 44.1 fixed + * The Feedback for the output is the input + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x001e), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 4, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 6, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = -1 + } + } + } +}, + +{ + /* + * Pioneer DJ DJM-900NXS2 + * 10 channels playback & 12 channels capture @ 44.1/48/96kHz S24LE + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x000a), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 10, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100| + SNDRV_PCM_RATE_48000| + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 3, + .rate_table = (unsigned int[]) { + 44100, 48000, 96000 + } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 12, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100| + SNDRV_PCM_RATE_48000| + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 3, + .rate_table = (unsigned int[]) { + 44100, 48000, 96000 + } + } + }, + { + .ifnum = -1 + } + } + } +}, + +{ + /* + * PIONEER DJ DDJ-800 + * PCM is 6 channels out, 6 channels in @ 44.1 fixed + * The Feedback for the output is the input + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x0029), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 6, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 6, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100, + .rate_min = 44100, + .rate_max = 44100, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 44100 } + } + }, + { + .ifnum = -1 + } + } + } +}, + +/* + * MacroSilicon MS2100/MS2106 based AV capture cards + * + * These claim 96kHz 1ch in the descriptors, but are actually 48kHz 2ch. + * They also need QUIRK_FLAG_ALIGN_TRANSFER, which makes one wonder if + * they pretend to be 96kHz mono as a workaround for stereo being broken + * by that... + * + * They also have an issue with initial stream alignment that causes the + * channels to be swapped and out of phase, which is dealt with in quirks.c. + */ +{ + USB_AUDIO_DEVICE(0x534d, 0x0021), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "MacroSilicon", + .product_name = "MS210x", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 3, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 2, + .iface = 3, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x82, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 48000, + .rate_max = 48000, + } + }, + { + .ifnum = -1 + } + } + } +}, + +/* + * MacroSilicon MS2109 based HDMI capture cards + * + * These claim 96kHz 1ch in the descriptors, but are actually 48kHz 2ch. + * They also need QUIRK_FLAG_ALIGN_TRANSFER, which makes one wonder if + * they pretend to be 96kHz mono as a workaround for stereo being broken + * by that... + * + * They also have an issue with initial stream alignment that causes the + * channels to be swapped and out of phase, which is dealt with in quirks.c. + */ +{ + USB_AUDIO_DEVICE(0x534d, 0x2109), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "MacroSilicon", + .product_name = "MS2109", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_MIXER, + }, + { + .ifnum = 3, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels = 2, + .iface = 3, + .altsetting = 1, + .altset_idx = 1, + .attributes = 0, + .endpoint = 0x82, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + .rate_min = 48000, + .rate_max = 48000, + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Pioneer DJ DJM-750 + * 8 channels playback & 8 channels capture @ 44.1/48/96kHz S24LE + */ + USB_DEVICE_VENDOR_SPEC(0x08e4, 0x017f), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x05, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_44100| + SNDRV_PCM_RATE_48000| + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 3, + .rate_table = (unsigned int[]) { 44100, 48000, 96000 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x86, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_44100| + SNDRV_PCM_RATE_48000| + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 3, + .rate_table = (unsigned int[]) { 44100, 48000, 96000 } + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Pioneer DJ DJM-750MK2 + * 10 channels playback & 12 channels capture @ 48kHz S24LE + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x001b), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 10, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { + 48000 + } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 12, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 } + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Pioneer DJ DJM-850 + * 8 channels playback and 8 channels capture @ 44.1/48/96kHz S24LE + * Playback on EP 0x05 + * Capture on EP 0x86 + */ + USB_DEVICE_VENDOR_SPEC(0x08e4, 0x0163), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x05, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_DATA, + .rates = SNDRV_PCM_RATE_44100| + SNDRV_PCM_RATE_48000| + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 3, + .rate_table = (unsigned int[]) { 44100, 48000, 96000 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x86, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_DATA, + .rates = SNDRV_PCM_RATE_44100| + SNDRV_PCM_RATE_48000| + SNDRV_PCM_RATE_96000, + .rate_min = 44100, + .rate_max = 96000, + .nr_rates = 3, + .rate_table = (unsigned int[]) { 44100, 48000, 96000 } + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Pioneer DJ DJM-450 + * PCM is 8 channels out @ 48 fixed (endpoint 0x01) + * and 8 channels in @ 48 fixed (endpoint 0x82). + */ + USB_DEVICE_VENDOR_SPEC(0x2b73, 0x0013), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, // outputs + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 } + } + }, + { + .ifnum = 0, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 8, // inputs + .iface = 0, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_idx = 1, + .ep_attr = USB_ENDPOINT_XFER_ISOC| + USB_ENDPOINT_SYNC_ASYNC| + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 } + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Sennheiser GSP670 + * Change order of interfaces loaded + */ + USB_DEVICE(0x1395, 0x0300), + .bInterfaceClass = USB_CLASS_PER_INTERFACE, + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + // Communication + { + .ifnum = 3, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + // Recording + { + .ifnum = 4, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + // Main + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Fiero SC-01 (firmware v1.0.0 @ 48 kHz) + */ + USB_DEVICE(0x2b53, 0x0023), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Fiero", + .product_name = "SC-01", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + /* Playback */ + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 2, + .fmt_bits = 24, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 }, + .clock = 0x29 + } + }, + /* Capture */ + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 2, + .fmt_bits = 24, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC | + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 48000 }, + .clock = 0x29 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Fiero SC-01 (firmware v1.0.0 @ 96 kHz) + */ + USB_DEVICE(0x2b53, 0x0024), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Fiero", + .product_name = "SC-01", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + /* Playback */ + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 2, + .fmt_bits = 24, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_96000, + .rate_min = 96000, + .rate_max = 96000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 96000 }, + .clock = 0x29 + } + }, + /* Capture */ + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 2, + .fmt_bits = 24, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC | + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_96000, + .rate_min = 96000, + .rate_max = 96000, + .nr_rates = 1, + .rate_table = (unsigned int[]) { 96000 }, + .clock = 0x29 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* + * Fiero SC-01 (firmware v1.1.0) + */ + USB_DEVICE(0x2b53, 0x0031), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Fiero", + .product_name = "SC-01", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = &(const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + /* Playback */ + { + .ifnum = 1, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 2, + .fmt_bits = 24, + .iface = 1, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x01, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC, + .rates = SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000, + .rate_min = 48000, + .rate_max = 96000, + .nr_rates = 2, + .rate_table = (unsigned int[]) { 48000, 96000 }, + .clock = 0x29 + } + }, + /* Capture */ + { + .ifnum = 2, + .type = QUIRK_AUDIO_FIXED_ENDPOINT, + .data = &(const struct audioformat) { + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels = 2, + .fmt_bits = 24, + .iface = 2, + .altsetting = 1, + .altset_idx = 1, + .endpoint = 0x82, + .ep_attr = USB_ENDPOINT_XFER_ISOC | + USB_ENDPOINT_SYNC_ASYNC | + USB_ENDPOINT_USAGE_IMPLICIT_FB, + .rates = SNDRV_PCM_RATE_48000 | + SNDRV_PCM_RATE_96000, + .rate_min = 48000, + .rate_max = 96000, + .nr_rates = 2, + .rate_table = (unsigned int[]) { 48000, 96000 }, + .clock = 0x29 + } + }, + { + .ifnum = -1 + } + } + } +}, +{ + /* Advanced modes of the Mythware XA001AU. + * For the standard mode, Mythware XA001AU has ID ffad:a001 + */ + USB_DEVICE_VENDOR_SPEC(0xffad, 0xa001), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .vendor_name = "Mythware", + .product_name = "XA001AU", + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 0, + .type = QUIRK_IGNORE_INTERFACE, + }, + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE, + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE, + }, + { + .ifnum = -1 + } + } + } +}, + +#undef USB_DEVICE_VENDOR_SPEC +#undef USB_AUDIO_DEVICE diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c new file mode 100644 index 000000000..33380cad3 --- /dev/null +++ b/sound/usb/quirks.c @@ -0,0 +1,2255 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/midi.h> +#include <linux/bits.h> + +#include <sound/control.h> +#include <sound/core.h> +#include <sound/info.h> +#include <sound/pcm.h> + +#include "usbaudio.h" +#include "card.h" +#include "mixer.h" +#include "mixer_quirks.h" +#include "midi.h" +#include "quirks.h" +#include "helper.h" +#include "endpoint.h" +#include "pcm.h" +#include "clock.h" +#include "stream.h" + +/* + * handle the quirks for the contained interfaces + */ +static int create_composite_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk_comp) +{ + int probed_ifnum = get_iface_desc(iface->altsetting)->bInterfaceNumber; + const struct snd_usb_audio_quirk *quirk; + int err; + + for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) { + iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); + if (!iface) + continue; + if (quirk->ifnum != probed_ifnum && + usb_interface_claimed(iface)) + continue; + err = snd_usb_create_quirk(chip, iface, driver, quirk); + if (err < 0) + return err; + } + + for (quirk = quirk_comp->data; quirk->ifnum >= 0; ++quirk) { + iface = usb_ifnum_to_if(chip->dev, quirk->ifnum); + if (!iface) + continue; + if (quirk->ifnum != probed_ifnum && + !usb_interface_claimed(iface)) { + err = usb_driver_claim_interface(driver, iface, + USB_AUDIO_IFACE_UNUSED); + if (err < 0) + return err; + } + } + + return 0; +} + +static int ignore_interface_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + return 0; +} + + +static int create_any_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *intf, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + return snd_usbmidi_create(chip->card, intf, &chip->midi_list, quirk); +} + +/* + * create a stream for an interface with proper descriptors + */ +static int create_standard_audio_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + int err; + + alts = &iface->altsetting[0]; + altsd = get_iface_desc(alts); + err = snd_usb_parse_audio_interface(chip, altsd->bInterfaceNumber); + if (err < 0) { + usb_audio_err(chip, "cannot setup if %d: error %d\n", + altsd->bInterfaceNumber, err); + return err; + } + /* reset the current interface */ + usb_set_interface(chip->dev, altsd->bInterfaceNumber, 0); + return 0; +} + +/* create the audio stream and the corresponding endpoints from the fixed + * audioformat object; this is used for quirks with the fixed EPs + */ +static int add_audio_stream_from_fixed_fmt(struct snd_usb_audio *chip, + struct audioformat *fp) +{ + int stream, err; + + stream = (fp->endpoint & USB_DIR_IN) ? + SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; + + snd_usb_audioformat_set_sync_ep(chip, fp); + + err = snd_usb_add_audio_stream(chip, stream, fp); + if (err < 0) + return err; + + err = snd_usb_add_endpoint(chip, fp->endpoint, + SND_USB_ENDPOINT_TYPE_DATA); + if (err < 0) + return err; + + if (fp->sync_ep) { + err = snd_usb_add_endpoint(chip, fp->sync_ep, + fp->implicit_fb ? + SND_USB_ENDPOINT_TYPE_DATA : + SND_USB_ENDPOINT_TYPE_SYNC); + if (err < 0) + return err; + } + + return 0; +} + +/* + * create a stream for an endpoint/altsetting without proper descriptors + */ +static int create_fixed_stream_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + struct audioformat *fp; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + unsigned *rate_table = NULL; + int err; + + fp = kmemdup(quirk->data, sizeof(*fp), GFP_KERNEL); + if (!fp) + return -ENOMEM; + + INIT_LIST_HEAD(&fp->list); + if (fp->nr_rates > MAX_NR_RATES) { + kfree(fp); + return -EINVAL; + } + if (fp->nr_rates > 0) { + rate_table = kmemdup(fp->rate_table, + sizeof(int) * fp->nr_rates, GFP_KERNEL); + if (!rate_table) { + kfree(fp); + return -ENOMEM; + } + fp->rate_table = rate_table; + } + + if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber || + fp->altset_idx >= iface->num_altsetting) { + err = -EINVAL; + goto error; + } + alts = &iface->altsetting[fp->altset_idx]; + altsd = get_iface_desc(alts); + if (altsd->bNumEndpoints <= fp->ep_idx) { + err = -EINVAL; + goto error; + } + + fp->protocol = altsd->bInterfaceProtocol; + + if (fp->datainterval == 0) + fp->datainterval = snd_usb_parse_datainterval(chip, alts); + if (fp->maxpacksize == 0) + fp->maxpacksize = le16_to_cpu(get_endpoint(alts, fp->ep_idx)->wMaxPacketSize); + if (!fp->fmt_type) + fp->fmt_type = UAC_FORMAT_TYPE_I; + + err = add_audio_stream_from_fixed_fmt(chip, fp); + if (err < 0) + goto error; + + usb_set_interface(chip->dev, fp->iface, 0); + snd_usb_init_pitch(chip, fp); + snd_usb_init_sample_rate(chip, fp, fp->rate_max); + return 0; + + error: + list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp); + kfree(rate_table); + return err; +} + +static int create_auto_pcm_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver) +{ + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + struct usb_endpoint_descriptor *epd; + struct uac1_as_header_descriptor *ashd; + struct uac_format_type_i_discrete_descriptor *fmtd; + + /* + * Most Roland/Yamaha audio streaming interfaces have more or less + * standard descriptors, but older devices might lack descriptors, and + * future ones might change, so ensure that we fail silently if the + * interface doesn't look exactly right. + */ + + /* must have a non-zero altsetting for streaming */ + if (iface->num_altsetting < 2) + return -ENODEV; + alts = &iface->altsetting[1]; + altsd = get_iface_desc(alts); + + /* must have an isochronous endpoint for streaming */ + if (altsd->bNumEndpoints < 1) + return -ENODEV; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_xfer_isoc(epd)) + return -ENODEV; + + /* must have format descriptors */ + ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, + UAC_AS_GENERAL); + fmtd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, + UAC_FORMAT_TYPE); + if (!ashd || ashd->bLength < 7 || + !fmtd || fmtd->bLength < 8) + return -ENODEV; + + return create_standard_audio_quirk(chip, iface, driver, NULL); +} + +static int create_yamaha_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + struct usb_host_interface *alts) +{ + static const struct snd_usb_audio_quirk yamaha_midi_quirk = { + .type = QUIRK_MIDI_YAMAHA + }; + struct usb_midi_in_jack_descriptor *injd; + struct usb_midi_out_jack_descriptor *outjd; + + /* must have some valid jack descriptors */ + injd = snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, USB_MS_MIDI_IN_JACK); + outjd = snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, USB_MS_MIDI_OUT_JACK); + if (!injd && !outjd) + return -ENODEV; + if ((injd && !snd_usb_validate_midi_desc(injd)) || + (outjd && !snd_usb_validate_midi_desc(outjd))) + return -ENODEV; + if (injd && (injd->bLength < 5 || + (injd->bJackType != USB_MS_EMBEDDED && + injd->bJackType != USB_MS_EXTERNAL))) + return -ENODEV; + if (outjd && (outjd->bLength < 6 || + (outjd->bJackType != USB_MS_EMBEDDED && + outjd->bJackType != USB_MS_EXTERNAL))) + return -ENODEV; + return create_any_midi_quirk(chip, iface, driver, &yamaha_midi_quirk); +} + +static int create_roland_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + struct usb_host_interface *alts) +{ + static const struct snd_usb_audio_quirk roland_midi_quirk = { + .type = QUIRK_MIDI_ROLAND + }; + u8 *roland_desc = NULL; + + /* might have a vendor-specific descriptor <06 24 F1 02 ...> */ + for (;;) { + roland_desc = snd_usb_find_csint_desc(alts->extra, + alts->extralen, + roland_desc, 0xf1); + if (!roland_desc) + return -ENODEV; + if (roland_desc[0] < 6 || roland_desc[3] != 2) + continue; + return create_any_midi_quirk(chip, iface, driver, + &roland_midi_quirk); + } +} + +static int create_std_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + struct usb_host_interface *alts) +{ + struct usb_ms_header_descriptor *mshd; + struct usb_ms_endpoint_descriptor *msepd; + + /* must have the MIDIStreaming interface header descriptor*/ + mshd = (struct usb_ms_header_descriptor *)alts->extra; + if (alts->extralen < 7 || + mshd->bLength < 7 || + mshd->bDescriptorType != USB_DT_CS_INTERFACE || + mshd->bDescriptorSubtype != USB_MS_HEADER) + return -ENODEV; + /* must have the MIDIStreaming endpoint descriptor*/ + msepd = (struct usb_ms_endpoint_descriptor *)alts->endpoint[0].extra; + if (alts->endpoint[0].extralen < 4 || + msepd->bLength < 4 || + msepd->bDescriptorType != USB_DT_CS_ENDPOINT || + msepd->bDescriptorSubtype != UAC_MS_GENERAL || + msepd->bNumEmbMIDIJack < 1 || + msepd->bNumEmbMIDIJack > 16) + return -ENODEV; + + return create_any_midi_quirk(chip, iface, driver, NULL); +} + +static int create_auto_midi_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver) +{ + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + struct usb_endpoint_descriptor *epd; + int err; + + alts = &iface->altsetting[0]; + altsd = get_iface_desc(alts); + + /* must have at least one bulk/interrupt endpoint for streaming */ + if (altsd->bNumEndpoints < 1) + return -ENODEV; + epd = get_endpoint(alts, 0); + if (!usb_endpoint_xfer_bulk(epd) && + !usb_endpoint_xfer_int(epd)) + return -ENODEV; + + switch (USB_ID_VENDOR(chip->usb_id)) { + case 0x0499: /* Yamaha */ + err = create_yamaha_midi_quirk(chip, iface, driver, alts); + if (err != -ENODEV) + return err; + break; + case 0x0582: /* Roland */ + err = create_roland_midi_quirk(chip, iface, driver, alts); + if (err != -ENODEV) + return err; + break; + } + + return create_std_midi_quirk(chip, iface, driver, alts); +} + +static int create_autodetect_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + int err; + + err = create_auto_pcm_quirk(chip, iface, driver); + if (err == -ENODEV) + err = create_auto_midi_quirk(chip, iface, driver); + return err; +} + +/* + * Create a stream for an Edirol UA-700/UA-25/UA-4FX interface. + * The only way to detect the sample rate is by looking at wMaxPacketSize. + */ +static int create_uaxx_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + static const struct audioformat ua_format = { + .formats = SNDRV_PCM_FMTBIT_S24_3LE, + .channels = 2, + .fmt_type = UAC_FORMAT_TYPE_I, + .altsetting = 1, + .altset_idx = 1, + .rates = SNDRV_PCM_RATE_CONTINUOUS, + }; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + struct audioformat *fp; + int err; + + /* both PCM and MIDI interfaces have 2 or more altsettings */ + if (iface->num_altsetting < 2) + return -ENXIO; + alts = &iface->altsetting[1]; + altsd = get_iface_desc(alts); + + if (altsd->bNumEndpoints == 2) { + static const struct snd_usb_midi_endpoint_info ua700_ep = { + .out_cables = 0x0003, + .in_cables = 0x0003 + }; + static const struct snd_usb_audio_quirk ua700_quirk = { + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &ua700_ep + }; + static const struct snd_usb_midi_endpoint_info uaxx_ep = { + .out_cables = 0x0001, + .in_cables = 0x0001 + }; + static const struct snd_usb_audio_quirk uaxx_quirk = { + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &uaxx_ep + }; + const struct snd_usb_audio_quirk *quirk = + chip->usb_id == USB_ID(0x0582, 0x002b) + ? &ua700_quirk : &uaxx_quirk; + return __snd_usbmidi_create(chip->card, iface, + &chip->midi_list, quirk, + chip->usb_id); + } + + if (altsd->bNumEndpoints != 1) + return -ENXIO; + + fp = kmemdup(&ua_format, sizeof(*fp), GFP_KERNEL); + if (!fp) + return -ENOMEM; + + fp->iface = altsd->bInterfaceNumber; + fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; + fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; + fp->datainterval = 0; + fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); + INIT_LIST_HEAD(&fp->list); + + switch (fp->maxpacksize) { + case 0x120: + fp->rate_max = fp->rate_min = 44100; + break; + case 0x138: + case 0x140: + fp->rate_max = fp->rate_min = 48000; + break; + case 0x258: + case 0x260: + fp->rate_max = fp->rate_min = 96000; + break; + default: + usb_audio_err(chip, "unknown sample rate\n"); + kfree(fp); + return -ENXIO; + } + + err = add_audio_stream_from_fixed_fmt(chip, fp); + if (err < 0) { + list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp); + return err; + } + usb_set_interface(chip->dev, fp->iface, 0); + return 0; +} + +/* + * Create a standard mixer for the specified interface. + */ +static int create_standard_mixer_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + if (quirk->ifnum < 0) + return 0; + + return snd_usb_create_mixer(chip, quirk->ifnum); +} + +/* + * audio-interface quirks + * + * returns zero if no standard audio/MIDI parsing is needed. + * returns a positive value if standard audio/midi interfaces are parsed + * after this. + * returns a negative value at error. + */ +int snd_usb_create_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk) +{ + typedef int (*quirk_func_t)(struct snd_usb_audio *, + struct usb_interface *, + struct usb_driver *, + const struct snd_usb_audio_quirk *); + static const quirk_func_t quirk_funcs[] = { + [QUIRK_IGNORE_INTERFACE] = ignore_interface_quirk, + [QUIRK_COMPOSITE] = create_composite_quirk, + [QUIRK_AUTODETECT] = create_autodetect_quirk, + [QUIRK_MIDI_STANDARD_INTERFACE] = create_any_midi_quirk, + [QUIRK_MIDI_FIXED_ENDPOINT] = create_any_midi_quirk, + [QUIRK_MIDI_YAMAHA] = create_any_midi_quirk, + [QUIRK_MIDI_ROLAND] = create_any_midi_quirk, + [QUIRK_MIDI_MIDIMAN] = create_any_midi_quirk, + [QUIRK_MIDI_NOVATION] = create_any_midi_quirk, + [QUIRK_MIDI_RAW_BYTES] = create_any_midi_quirk, + [QUIRK_MIDI_EMAGIC] = create_any_midi_quirk, + [QUIRK_MIDI_CME] = create_any_midi_quirk, + [QUIRK_MIDI_AKAI] = create_any_midi_quirk, + [QUIRK_MIDI_FTDI] = create_any_midi_quirk, + [QUIRK_MIDI_CH345] = create_any_midi_quirk, + [QUIRK_AUDIO_STANDARD_INTERFACE] = create_standard_audio_quirk, + [QUIRK_AUDIO_FIXED_ENDPOINT] = create_fixed_stream_quirk, + [QUIRK_AUDIO_EDIROL_UAXX] = create_uaxx_quirk, + [QUIRK_AUDIO_STANDARD_MIXER] = create_standard_mixer_quirk, + }; + + if (quirk->type < QUIRK_TYPE_COUNT) { + return quirk_funcs[quirk->type](chip, iface, driver, quirk); + } else { + usb_audio_err(chip, "invalid quirk type %d\n", quirk->type); + return -ENXIO; + } +} + +/* + * boot quirks + */ + +#define EXTIGY_FIRMWARE_SIZE_OLD 794 +#define EXTIGY_FIRMWARE_SIZE_NEW 483 + +static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interface *intf) +{ + struct usb_host_config *config = dev->actconfig; + int err; + + if (le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_OLD || + le16_to_cpu(get_cfg_desc(config)->wTotalLength) == EXTIGY_FIRMWARE_SIZE_NEW) { + dev_dbg(&dev->dev, "sending Extigy boot sequence...\n"); + /* Send message to force it to reconnect with full interface. */ + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev,0), + 0x10, 0x43, 0x0001, 0x000a, NULL, 0); + if (err < 0) + dev_dbg(&dev->dev, "error sending boot message: %d\n", err); + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, + &dev->descriptor, sizeof(dev->descriptor)); + config = dev->actconfig; + if (err < 0) + dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); + err = usb_reset_configuration(dev); + if (err < 0) + dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); + dev_dbg(&dev->dev, "extigy_boot: new boot length = %d\n", + le16_to_cpu(get_cfg_desc(config)->wTotalLength)); + return -ENODEV; /* quit this anyway */ + } + return 0; +} + +static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev) +{ + u8 buf = 1; + + snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, + 0, 0, &buf, 1); + if (buf == 0) { + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + 1, 2000, NULL, 0); + return -ENODEV; + } + return 0; +} + +static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev) +{ + int err; + + if (dev->actconfig->desc.bConfigurationValue == 1) { + dev_info(&dev->dev, + "Fast Track Pro switching to config #2\n"); + /* This function has to be available by the usb core module. + * if it is not avialable the boot quirk has to be left out + * and the configuration has to be set by udev or hotplug + * rules + */ + err = usb_driver_set_configuration(dev, 2); + if (err < 0) + dev_dbg(&dev->dev, + "error usb_driver_set_configuration: %d\n", + err); + /* Always return an error, so that we stop creating a device + that will just be destroyed and recreated with a new + configuration */ + return -ENODEV; + } else + dev_info(&dev->dev, "Fast Track Pro config OK\n"); + + return 0; +} + +/* + * C-Media CM106/CM106+ have four 16-bit internal registers that are nicely + * documented in the device's data sheet. + */ +static int snd_usb_cm106_write_int_reg(struct usb_device *dev, int reg, u16 value) +{ + u8 buf[4]; + buf[0] = 0x20; + buf[1] = value & 0xff; + buf[2] = (value >> 8) & 0xff; + buf[3] = reg; + return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), USB_REQ_SET_CONFIGURATION, + USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_ENDPOINT, + 0, 0, &buf, 4); +} + +static int snd_usb_cm106_boot_quirk(struct usb_device *dev) +{ + /* + * Enable line-out driver mode, set headphone source to front + * channels, enable stereo mic. + */ + return snd_usb_cm106_write_int_reg(dev, 2, 0x8004); +} + +/* + * CM6206 registers from the CM6206 datasheet rev 2.1 + */ +#define CM6206_REG0_DMA_MASTER BIT(15) +#define CM6206_REG0_SPDIFO_RATE_48K (2 << 12) +#define CM6206_REG0_SPDIFO_RATE_96K (7 << 12) +/* Bit 4 thru 11 is the S/PDIF category code */ +#define CM6206_REG0_SPDIFO_CAT_CODE_GENERAL (0 << 4) +#define CM6206_REG0_SPDIFO_EMPHASIS_CD BIT(3) +#define CM6206_REG0_SPDIFO_COPYRIGHT_NA BIT(2) +#define CM6206_REG0_SPDIFO_NON_AUDIO BIT(1) +#define CM6206_REG0_SPDIFO_PRO_FORMAT BIT(0) + +#define CM6206_REG1_TEST_SEL_CLK BIT(14) +#define CM6206_REG1_PLLBIN_EN BIT(13) +#define CM6206_REG1_SOFT_MUTE_EN BIT(12) +#define CM6206_REG1_GPIO4_OUT BIT(11) +#define CM6206_REG1_GPIO4_OE BIT(10) +#define CM6206_REG1_GPIO3_OUT BIT(9) +#define CM6206_REG1_GPIO3_OE BIT(8) +#define CM6206_REG1_GPIO2_OUT BIT(7) +#define CM6206_REG1_GPIO2_OE BIT(6) +#define CM6206_REG1_GPIO1_OUT BIT(5) +#define CM6206_REG1_GPIO1_OE BIT(4) +#define CM6206_REG1_SPDIFO_INVALID BIT(3) +#define CM6206_REG1_SPDIF_LOOP_EN BIT(2) +#define CM6206_REG1_SPDIFO_DIS BIT(1) +#define CM6206_REG1_SPDIFI_MIX BIT(0) + +#define CM6206_REG2_DRIVER_ON BIT(15) +#define CM6206_REG2_HEADP_SEL_SIDE_CHANNELS (0 << 13) +#define CM6206_REG2_HEADP_SEL_SURROUND_CHANNELS (1 << 13) +#define CM6206_REG2_HEADP_SEL_CENTER_SUBW (2 << 13) +#define CM6206_REG2_HEADP_SEL_FRONT_CHANNELS (3 << 13) +#define CM6206_REG2_MUTE_HEADPHONE_RIGHT BIT(12) +#define CM6206_REG2_MUTE_HEADPHONE_LEFT BIT(11) +#define CM6206_REG2_MUTE_REAR_SURROUND_RIGHT BIT(10) +#define CM6206_REG2_MUTE_REAR_SURROUND_LEFT BIT(9) +#define CM6206_REG2_MUTE_SIDE_SURROUND_RIGHT BIT(8) +#define CM6206_REG2_MUTE_SIDE_SURROUND_LEFT BIT(7) +#define CM6206_REG2_MUTE_SUBWOOFER BIT(6) +#define CM6206_REG2_MUTE_CENTER BIT(5) +#define CM6206_REG2_MUTE_RIGHT_FRONT BIT(3) +#define CM6206_REG2_MUTE_LEFT_FRONT BIT(3) +#define CM6206_REG2_EN_BTL BIT(2) +#define CM6206_REG2_MCUCLKSEL_1_5_MHZ (0) +#define CM6206_REG2_MCUCLKSEL_3_MHZ (1) +#define CM6206_REG2_MCUCLKSEL_6_MHZ (2) +#define CM6206_REG2_MCUCLKSEL_12_MHZ (3) + +/* Bit 11..13 sets the sensitivity to FLY tuner volume control VP/VD signal */ +#define CM6206_REG3_FLYSPEED_DEFAULT (2 << 11) +#define CM6206_REG3_VRAP25EN BIT(10) +#define CM6206_REG3_MSEL1 BIT(9) +#define CM6206_REG3_SPDIFI_RATE_44_1K BIT(0 << 7) +#define CM6206_REG3_SPDIFI_RATE_48K BIT(2 << 7) +#define CM6206_REG3_SPDIFI_RATE_32K BIT(3 << 7) +#define CM6206_REG3_PINSEL BIT(6) +#define CM6206_REG3_FOE BIT(5) +#define CM6206_REG3_ROE BIT(4) +#define CM6206_REG3_CBOE BIT(3) +#define CM6206_REG3_LOSE BIT(2) +#define CM6206_REG3_HPOE BIT(1) +#define CM6206_REG3_SPDIFI_CANREC BIT(0) + +#define CM6206_REG5_DA_RSTN BIT(13) +#define CM6206_REG5_AD_RSTN BIT(12) +#define CM6206_REG5_SPDIFO_AD2SPDO BIT(12) +#define CM6206_REG5_SPDIFO_SEL_FRONT (0 << 9) +#define CM6206_REG5_SPDIFO_SEL_SIDE_SUR (1 << 9) +#define CM6206_REG5_SPDIFO_SEL_CEN_LFE (2 << 9) +#define CM6206_REG5_SPDIFO_SEL_REAR_SUR (3 << 9) +#define CM6206_REG5_CODECM BIT(8) +#define CM6206_REG5_EN_HPF BIT(7) +#define CM6206_REG5_T_SEL_DSDA4 BIT(6) +#define CM6206_REG5_T_SEL_DSDA3 BIT(5) +#define CM6206_REG5_T_SEL_DSDA2 BIT(4) +#define CM6206_REG5_T_SEL_DSDA1 BIT(3) +#define CM6206_REG5_T_SEL_DSDAD_NORMAL 0 +#define CM6206_REG5_T_SEL_DSDAD_FRONT 4 +#define CM6206_REG5_T_SEL_DSDAD_S_SURROUND 5 +#define CM6206_REG5_T_SEL_DSDAD_CEN_LFE 6 +#define CM6206_REG5_T_SEL_DSDAD_R_SURROUND 7 + +static int snd_usb_cm6206_boot_quirk(struct usb_device *dev) +{ + int err = 0, reg; + int val[] = { + /* + * Values here are chosen based on sniffing USB traffic + * under Windows. + * + * REG0: DAC is master, sample rate 48kHz, no copyright + */ + CM6206_REG0_SPDIFO_RATE_48K | + CM6206_REG0_SPDIFO_COPYRIGHT_NA, + /* + * REG1: PLL binary search enable, soft mute enable. + */ + CM6206_REG1_PLLBIN_EN | + CM6206_REG1_SOFT_MUTE_EN, + /* + * REG2: enable output drivers, + * select front channels to the headphone output, + * then mute the headphone channels, run the MCU + * at 1.5 MHz. + */ + CM6206_REG2_DRIVER_ON | + CM6206_REG2_HEADP_SEL_FRONT_CHANNELS | + CM6206_REG2_MUTE_HEADPHONE_RIGHT | + CM6206_REG2_MUTE_HEADPHONE_LEFT, + /* + * REG3: default flyspeed, set 2.5V mic bias + * enable all line out ports and enable SPDIF + */ + CM6206_REG3_FLYSPEED_DEFAULT | + CM6206_REG3_VRAP25EN | + CM6206_REG3_FOE | + CM6206_REG3_ROE | + CM6206_REG3_CBOE | + CM6206_REG3_LOSE | + CM6206_REG3_HPOE | + CM6206_REG3_SPDIFI_CANREC, + /* REG4 is just a bunch of GPIO lines */ + 0x0000, + /* REG5: de-assert AD/DA reset signals */ + CM6206_REG5_DA_RSTN | + CM6206_REG5_AD_RSTN }; + + for (reg = 0; reg < ARRAY_SIZE(val); reg++) { + err = snd_usb_cm106_write_int_reg(dev, reg, val[reg]); + if (err < 0) + return err; + } + + return err; +} + +/* quirk for Plantronics GameCom 780 with CM6302 chip */ +static int snd_usb_gamecon780_boot_quirk(struct usb_device *dev) +{ + /* set the initial volume and don't change; other values are either + * too loud or silent due to firmware bug (bko#65251) + */ + u8 buf[2] = { 0x74, 0xe3 }; + return snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT, + UAC_FU_VOLUME << 8, 9 << 8, buf, 2); +} + +/* + * Novation Twitch DJ controller + * Focusrite Novation Saffire 6 USB audio card + */ +static int snd_usb_novation_boot_quirk(struct usb_device *dev) +{ + /* preemptively set up the device because otherwise the + * raw MIDI endpoints are not active */ + usb_set_interface(dev, 0, 1); + return 0; +} + +/* + * This call will put the synth in "USB send" mode, i.e it will send MIDI + * messages through USB (this is disabled at startup). The synth will + * acknowledge by sending a sysex on endpoint 0x85 and by displaying a USB + * sign on its LCD. Values here are chosen based on sniffing USB traffic + * under Windows. + */ +static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev) +{ + int err, actual_length; + /* "midi send" enable */ + static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 }; + void *buf; + + if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x05))) + return -EINVAL; + buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL); + if (!buf) + return -ENOMEM; + err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf, + ARRAY_SIZE(seq), &actual_length, 1000); + kfree(buf); + if (err < 0) + return err; + + return 0; +} + +/* + * Some sound cards from Native Instruments are in fact compliant to the USB + * audio standard of version 2 and other approved USB standards, even though + * they come up as vendor-specific device when first connected. + * + * However, they can be told to come up with a new set of descriptors + * upon their next enumeration, and the interfaces announced by the new + * descriptors will then be handled by the kernel's class drivers. As the + * product ID will also change, no further checks are required. + */ + +static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev) +{ + int ret; + + ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 1, 0, NULL, 0, 1000); + + if (ret < 0) + return ret; + + usb_reset_device(dev); + + /* return -EAGAIN, so the creation of an audio interface for this + * temporary device is aborted. The device will reconnect with a + * new product ID */ + return -EAGAIN; +} + +static void mbox2_setup_48_24_magic(struct usb_device *dev) +{ + u8 srate[3]; + u8 temp[12]; + + /* Choose 48000Hz permanently */ + srate[0] = 0x80; + srate[1] = 0xbb; + srate[2] = 0x00; + + /* Send the magic! */ + snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + 0x01, 0x22, 0x0100, 0x0085, &temp, 0x0003); + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x81, 0xa2, 0x0100, 0x0085, &srate, 0x0003); + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x81, 0xa2, 0x0100, 0x0086, &srate, 0x0003); + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x81, 0xa2, 0x0100, 0x0003, &srate, 0x0003); + return; +} + +/* Digidesign Mbox 2 needs to load firmware onboard + * and driver must wait a few seconds for initialisation. + */ + +#define MBOX2_FIRMWARE_SIZE 646 +#define MBOX2_BOOT_LOADING 0x01 /* Hard coded into the device */ +#define MBOX2_BOOT_READY 0x02 /* Hard coded into the device */ + +static int snd_usb_mbox2_boot_quirk(struct usb_device *dev) +{ + struct usb_host_config *config = dev->actconfig; + int err; + u8 bootresponse[0x12]; + int fwsize; + int count; + + fwsize = le16_to_cpu(get_cfg_desc(config)->wTotalLength); + + if (fwsize != MBOX2_FIRMWARE_SIZE) { + dev_err(&dev->dev, "Invalid firmware size=%d.\n", fwsize); + return -ENODEV; + } + + dev_dbg(&dev->dev, "Sending Digidesign Mbox 2 boot sequence...\n"); + + count = 0; + bootresponse[0] = MBOX2_BOOT_LOADING; + while ((bootresponse[0] == MBOX2_BOOT_LOADING) && (count < 10)) { + msleep(500); /* 0.5 second delay */ + snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), + /* Control magic - load onboard firmware */ + 0x85, 0xc0, 0x0001, 0x0000, &bootresponse, 0x0012); + if (bootresponse[0] == MBOX2_BOOT_READY) + break; + dev_dbg(&dev->dev, "device not ready, resending boot sequence...\n"); + count++; + } + + if (bootresponse[0] != MBOX2_BOOT_READY) { + dev_err(&dev->dev, "Unknown bootresponse=%d, or timed out, ignoring device.\n", bootresponse[0]); + return -ENODEV; + } + + dev_dbg(&dev->dev, "device initialised!\n"); + + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, + &dev->descriptor, sizeof(dev->descriptor)); + config = dev->actconfig; + if (err < 0) + dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); + + err = usb_reset_configuration(dev); + if (err < 0) + dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); + dev_dbg(&dev->dev, "mbox2_boot: new boot length = %d\n", + le16_to_cpu(get_cfg_desc(config)->wTotalLength)); + + mbox2_setup_48_24_magic(dev); + + dev_info(&dev->dev, "Digidesign Mbox 2: 24bit 48kHz"); + + return 0; /* Successful boot */ +} + +static int snd_usb_axefx3_boot_quirk(struct usb_device *dev) +{ + int err; + + dev_dbg(&dev->dev, "Waiting for Axe-Fx III to boot up...\n"); + + /* If the Axe-Fx III has not fully booted, it will timeout when trying + * to enable the audio streaming interface. A more generous timeout is + * used here to detect when the Axe-Fx III has finished booting as the + * set interface message will be acked once it has + */ + err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + USB_REQ_SET_INTERFACE, USB_RECIP_INTERFACE, + 1, 1, NULL, 0, 120000); + if (err < 0) { + dev_err(&dev->dev, + "failed waiting for Axe-Fx III to boot: %d\n", err); + return err; + } + + dev_dbg(&dev->dev, "Axe-Fx III is now ready\n"); + + err = usb_set_interface(dev, 1, 0); + if (err < 0) + dev_dbg(&dev->dev, + "error stopping Axe-Fx III interface: %d\n", err); + + return 0; +} + +static void mbox3_setup_48_24_magic(struct usb_device *dev) +{ + /* The Mbox 3 is "little endian" */ + /* max volume is: 0x0000. */ + /* min volume is: 0x0080 (shown in little endian form) */ + + + /* Load 48000Hz rate into buffer */ + u8 com_buff[4] = {0x80, 0xbb, 0x00, 0x00}; + + /* Set 48000Hz sample rate */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x01, 0x21, 0x0100, 0x0001, &com_buff, 4); //Is this really needed? + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x01, 0x21, 0x0100, 0x8101, &com_buff, 4); + + /* Deactivate Tuner */ + /* on = 0x01*/ + /* off = 0x00*/ + com_buff[0] = 0x00; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 0x01, 0x21, 0x0003, 0x2001, &com_buff, 1); + + /* Set clock source to Internal (as opposed to S/PDIF) */ + com_buff[0] = 0x01; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0100, 0x8001, &com_buff, 1); + + /* Mute the hardware loopbacks to start the device in a known state. */ + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* Analogue input 1 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0110, 0x4001, &com_buff, 2); + /* Analogue input 1 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0111, 0x4001, &com_buff, 2); + /* Analogue input 2 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0114, 0x4001, &com_buff, 2); + /* Analogue input 2 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0115, 0x4001, &com_buff, 2); + /* Analogue input 3 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0118, 0x4001, &com_buff, 2); + /* Analogue input 3 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0119, 0x4001, &com_buff, 2); + /* Analogue input 4 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x011c, 0x4001, &com_buff, 2); + /* Analogue input 4 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x011d, 0x4001, &com_buff, 2); + + /* Set software sends to output */ + com_buff[0] = 0x00; + com_buff[1] = 0x00; + /* Analogue software return 1 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0100, 0x4001, &com_buff, 2); + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* Analogue software return 1 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0101, 0x4001, &com_buff, 2); + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* Analogue software return 2 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0104, 0x4001, &com_buff, 2); + com_buff[0] = 0x00; + com_buff[1] = 0x00; + /* Analogue software return 2 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0105, 0x4001, &com_buff, 2); + + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* Analogue software return 3 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0108, 0x4001, &com_buff, 2); + /* Analogue software return 3 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0109, 0x4001, &com_buff, 2); + /* Analogue software return 4 left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x010c, 0x4001, &com_buff, 2); + /* Analogue software return 4 right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x010d, 0x4001, &com_buff, 2); + + /* Return to muting sends */ + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* Analogue fx return left channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0120, 0x4001, &com_buff, 2); + /* Analogue fx return right channel: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0121, 0x4001, &com_buff, 2); + + /* Analogue software input 1 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0100, 0x4201, &com_buff, 2); + /* Analogue software input 2 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0101, 0x4201, &com_buff, 2); + /* Analogue software input 3 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0102, 0x4201, &com_buff, 2); + /* Analogue software input 4 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0103, 0x4201, &com_buff, 2); + /* Analogue input 1 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0104, 0x4201, &com_buff, 2); + /* Analogue input 2 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0105, 0x4201, &com_buff, 2); + /* Analogue input 3 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0106, 0x4201, &com_buff, 2); + /* Analogue input 4 fx send: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0107, 0x4201, &com_buff, 2); + + /* Toggle allowing host control */ + com_buff[0] = 0x02; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 3, 0x21, 0x0000, 0x2001, &com_buff, 1); + + /* Do not dim fx returns */ + com_buff[0] = 0x00; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 3, 0x21, 0x0002, 0x2001, &com_buff, 1); + + /* Do not set fx returns to mono */ + com_buff[0] = 0x00; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 3, 0x21, 0x0001, 0x2001, &com_buff, 1); + + /* Mute the S/PDIF hardware loopback + * same odd volume logic here as above + */ + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* S/PDIF hardware input 1 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0112, 0x4001, &com_buff, 2); + /* S/PDIF hardware input 1 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0113, 0x4001, &com_buff, 2); + /* S/PDIF hardware input 2 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0116, 0x4001, &com_buff, 2); + /* S/PDIF hardware input 2 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0117, 0x4001, &com_buff, 2); + /* S/PDIF hardware input 3 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x011a, 0x4001, &com_buff, 2); + /* S/PDIF hardware input 3 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x011b, 0x4001, &com_buff, 2); + /* S/PDIF hardware input 4 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x011e, 0x4001, &com_buff, 2); + /* S/PDIF hardware input 4 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x011f, 0x4001, &com_buff, 2); + /* S/PDIF software return 1 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0102, 0x4001, &com_buff, 2); + /* S/PDIF software return 1 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0103, 0x4001, &com_buff, 2); + /* S/PDIF software return 2 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0106, 0x4001, &com_buff, 2); + /* S/PDIF software return 2 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0107, 0x4001, &com_buff, 2); + + com_buff[0] = 0x00; + com_buff[1] = 0x00; + /* S/PDIF software return 3 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x010a, 0x4001, &com_buff, 2); + + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* S/PDIF software return 3 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x010b, 0x4001, &com_buff, 2); + /* S/PDIF software return 4 left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x010e, 0x4001, &com_buff, 2); + + com_buff[0] = 0x00; + com_buff[1] = 0x00; + /* S/PDIF software return 4 right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x010f, 0x4001, &com_buff, 2); + + com_buff[0] = 0x00; + com_buff[1] = 0x80; + /* S/PDIF fx returns left channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0122, 0x4001, &com_buff, 2); + /* S/PDIF fx returns right channel */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0123, 0x4001, &com_buff, 2); + + /* Set the dropdown "Effect" to the first option */ + /* Room1 = 0x00 */ + /* Room2 = 0x01 */ + /* Room3 = 0x02 */ + /* Hall 1 = 0x03 */ + /* Hall 2 = 0x04 */ + /* Plate = 0x05 */ + /* Delay = 0x06 */ + /* Echo = 0x07 */ + com_buff[0] = 0x00; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0200, 0x4301, &com_buff, 1); /* max is 0xff */ + /* min is 0x00 */ + + + /* Set the effect duration to 0 */ + /* max is 0xffff */ + /* min is 0x0000 */ + com_buff[0] = 0x00; + com_buff[1] = 0x00; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0400, 0x4301, &com_buff, 2); + + /* Set the effect volume and feedback to 0 */ + /* max is 0xff */ + /* min is 0x00 */ + com_buff[0] = 0x00; + /* feedback: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0500, 0x4301, &com_buff, 1); + /* volume: */ + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 1, 0x21, 0x0300, 0x4301, &com_buff, 1); + + /* Set soft button hold duration */ + /* 0x03 = 250ms */ + /* 0x05 = 500ms DEFAULT */ + /* 0x08 = 750ms */ + /* 0x0a = 1sec */ + com_buff[0] = 0x05; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 3, 0x21, 0x0005, 0x2001, &com_buff, 1); + + /* Use dim LEDs for button of state */ + com_buff[0] = 0x00; + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), + 3, 0x21, 0x0004, 0x2001, &com_buff, 1); +} + +#define MBOX3_DESCRIPTOR_SIZE 464 + +static int snd_usb_mbox3_boot_quirk(struct usb_device *dev) +{ + struct usb_host_config *config = dev->actconfig; + int err; + int descriptor_size; + + descriptor_size = le16_to_cpu(get_cfg_desc(config)->wTotalLength); + + if (descriptor_size != MBOX3_DESCRIPTOR_SIZE) { + dev_err(&dev->dev, "Invalid descriptor size=%d.\n", descriptor_size); + return -ENODEV; + } + + dev_dbg(&dev->dev, "device initialised!\n"); + + err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, + &dev->descriptor, sizeof(dev->descriptor)); + config = dev->actconfig; + if (err < 0) + dev_dbg(&dev->dev, "error usb_get_descriptor: %d\n", err); + + err = usb_reset_configuration(dev); + if (err < 0) + dev_dbg(&dev->dev, "error usb_reset_configuration: %d\n", err); + dev_dbg(&dev->dev, "mbox3_boot: new boot length = %d\n", + le16_to_cpu(get_cfg_desc(config)->wTotalLength)); + + mbox3_setup_48_24_magic(dev); + dev_info(&dev->dev, "Digidesign Mbox 3: 24bit 48kHz"); + + return 0; /* Successful boot */ +} + +#define MICROBOOK_BUF_SIZE 128 + +static int snd_usb_motu_microbookii_communicate(struct usb_device *dev, u8 *buf, + int buf_size, int *length) +{ + int err, actual_length; + + if (usb_pipe_type_check(dev, usb_sndintpipe(dev, 0x01))) + return -EINVAL; + err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x01), buf, *length, + &actual_length, 1000); + if (err < 0) + return err; + + print_hex_dump(KERN_DEBUG, "MicroBookII snd: ", DUMP_PREFIX_NONE, 16, 1, + buf, actual_length, false); + + memset(buf, 0, buf_size); + + if (usb_pipe_type_check(dev, usb_rcvintpipe(dev, 0x82))) + return -EINVAL; + err = usb_interrupt_msg(dev, usb_rcvintpipe(dev, 0x82), buf, buf_size, + &actual_length, 1000); + if (err < 0) + return err; + + print_hex_dump(KERN_DEBUG, "MicroBookII rcv: ", DUMP_PREFIX_NONE, 16, 1, + buf, actual_length, false); + + *length = actual_length; + return 0; +} + +static int snd_usb_motu_microbookii_boot_quirk(struct usb_device *dev) +{ + int err, actual_length, poll_attempts = 0; + static const u8 set_samplerate_seq[] = { 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x0b, 0x14, + 0x00, 0x00, 0x00, 0x01 }; + static const u8 poll_ready_seq[] = { 0x00, 0x04, 0x00, 0x00, + 0x00, 0x00, 0x0b, 0x18 }; + u8 *buf = kzalloc(MICROBOOK_BUF_SIZE, GFP_KERNEL); + + if (!buf) + return -ENOMEM; + + dev_info(&dev->dev, "Waiting for MOTU Microbook II to boot up...\n"); + + /* First we tell the device which sample rate to use. */ + memcpy(buf, set_samplerate_seq, sizeof(set_samplerate_seq)); + actual_length = sizeof(set_samplerate_seq); + err = snd_usb_motu_microbookii_communicate(dev, buf, MICROBOOK_BUF_SIZE, + &actual_length); + + if (err < 0) { + dev_err(&dev->dev, + "failed setting the sample rate for Motu MicroBook II: %d\n", + err); + goto free_buf; + } + + /* Then we poll every 100 ms until the device informs of its readiness. */ + while (true) { + if (++poll_attempts > 100) { + dev_err(&dev->dev, + "failed booting Motu MicroBook II: timeout\n"); + err = -ENODEV; + goto free_buf; + } + + memset(buf, 0, MICROBOOK_BUF_SIZE); + memcpy(buf, poll_ready_seq, sizeof(poll_ready_seq)); + + actual_length = sizeof(poll_ready_seq); + err = snd_usb_motu_microbookii_communicate( + dev, buf, MICROBOOK_BUF_SIZE, &actual_length); + if (err < 0) { + dev_err(&dev->dev, + "failed booting Motu MicroBook II: communication error %d\n", + err); + goto free_buf; + } + + /* the device signals its readiness through a message of the + * form + * XX 06 00 00 00 00 0b 18 00 00 00 01 + * If the device is not yet ready to accept audio data, the + * last byte of that sequence is 00. + */ + if (actual_length == 12 && buf[actual_length - 1] == 1) + break; + + msleep(100); + } + + dev_info(&dev->dev, "MOTU MicroBook II ready\n"); + +free_buf: + kfree(buf); + return err; +} + +static int snd_usb_motu_m_series_boot_quirk(struct usb_device *dev) +{ + msleep(4000); + + return 0; +} + +/* + * Setup quirks + */ +#define MAUDIO_SET 0x01 /* parse device_setup */ +#define MAUDIO_SET_COMPATIBLE 0x80 /* use only "win-compatible" interfaces */ +#define MAUDIO_SET_DTS 0x02 /* enable DTS Digital Output */ +#define MAUDIO_SET_96K 0x04 /* 48-96kHz rate if set, 8-48kHz otherwise */ +#define MAUDIO_SET_24B 0x08 /* 24bits sample if set, 16bits otherwise */ +#define MAUDIO_SET_DI 0x10 /* enable Digital Input */ +#define MAUDIO_SET_MASK 0x1f /* bit mask for setup value */ +#define MAUDIO_SET_24B_48K_DI 0x19 /* 24bits+48kHz+Digital Input */ +#define MAUDIO_SET_24B_48K_NOTDI 0x09 /* 24bits+48kHz+No Digital Input */ +#define MAUDIO_SET_16B_48K_DI 0x11 /* 16bits+48kHz+Digital Input */ +#define MAUDIO_SET_16B_48K_NOTDI 0x01 /* 16bits+48kHz+No Digital Input */ + +static int quattro_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, int altno) +{ + /* Reset ALL ifaces to 0 altsetting. + * Call it for every possible altsetting of every interface. + */ + usb_set_interface(chip->dev, iface, 0); + if (chip->setup & MAUDIO_SET) { + if (chip->setup & MAUDIO_SET_COMPATIBLE) { + if (iface != 1 && iface != 2) + return 1; /* skip all interfaces but 1 and 2 */ + } else { + unsigned int mask; + if (iface == 1 || iface == 2) + return 1; /* skip interfaces 1 and 2 */ + if ((chip->setup & MAUDIO_SET_96K) && altno != 1) + return 1; /* skip this altsetting */ + mask = chip->setup & MAUDIO_SET_MASK; + if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 4) + return 1; /* skip this altsetting */ + } + } + usb_audio_dbg(chip, + "using altsetting %d for interface %d config %d\n", + altno, iface, chip->setup); + return 0; /* keep this altsetting */ +} + +static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, + int altno) +{ + /* Reset ALL ifaces to 0 altsetting. + * Call it for every possible altsetting of every interface. + */ + usb_set_interface(chip->dev, iface, 0); + + if (chip->setup & MAUDIO_SET) { + unsigned int mask; + if ((chip->setup & MAUDIO_SET_DTS) && altno != 6) + return 1; /* skip this altsetting */ + if ((chip->setup & MAUDIO_SET_96K) && altno != 1) + return 1; /* skip this altsetting */ + mask = chip->setup & MAUDIO_SET_MASK; + if (mask == MAUDIO_SET_24B_48K_DI && altno != 2) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_24B_48K_NOTDI && altno != 3) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_16B_48K_DI && altno != 4) + return 1; /* skip this altsetting */ + if (mask == MAUDIO_SET_16B_48K_NOTDI && altno != 5) + return 1; /* skip this altsetting */ + } + + return 0; /* keep this altsetting */ +} + +static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, int altno) +{ + /* Reset ALL ifaces to 0 altsetting. + * Call it for every possible altsetting of every interface. + */ + usb_set_interface(chip->dev, iface, 0); + + /* possible configuration where both inputs and only one output is + *used is not supported by the current setup + */ + if (chip->setup & (MAUDIO_SET | MAUDIO_SET_24B)) { + if (chip->setup & MAUDIO_SET_96K) { + if (altno != 3 && altno != 6) + return 1; + } else if (chip->setup & MAUDIO_SET_DI) { + if (iface == 4) + return 1; /* no analog input */ + if (altno != 2 && altno != 5) + return 1; /* enable only altsets 2 and 5 */ + } else { + if (iface == 5) + return 1; /* disable digialt input */ + if (altno != 2 && altno != 5) + return 1; /* enalbe only altsets 2 and 5 */ + } + } else { + /* keep only 16-Bit mode */ + if (altno != 1) + return 1; + } + + usb_audio_dbg(chip, + "using altsetting %d for interface %d config %d\n", + altno, iface, chip->setup); + return 0; /* keep this altsetting */ +} + +static int s1810c_skip_setting_quirk(struct snd_usb_audio *chip, + int iface, int altno) +{ + /* + * Altno settings: + * + * Playback (Interface 1): + * 1: 6 Analog + 2 S/PDIF + * 2: 6 Analog + 2 S/PDIF + * 3: 6 Analog + * + * Capture (Interface 2): + * 1: 8 Analog + 2 S/PDIF + 8 ADAT + * 2: 8 Analog + 2 S/PDIF + 4 ADAT + * 3: 8 Analog + */ + + /* + * I'll leave 2 as the default one and + * use device_setup to switch to the + * other two. + */ + if ((chip->setup == 0 || chip->setup > 2) && altno != 2) + return 1; + else if (chip->setup == 1 && altno != 1) + return 1; + else if (chip->setup == 2 && altno != 3) + return 1; + + return 0; +} + +int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip, + int iface, + int altno) +{ + /* audiophile usb: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x0763, 0x2003)) + return audiophile_skip_setting_quirk(chip, iface, altno); + /* quattro usb: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x0763, 0x2001)) + return quattro_skip_setting_quirk(chip, iface, altno); + /* fasttrackpro usb: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x0763, 0x2012)) + return fasttrackpro_skip_setting_quirk(chip, iface, altno); + /* presonus studio 1810c: skip altsets incompatible with device_setup */ + if (chip->usb_id == USB_ID(0x194f, 0x010c)) + return s1810c_skip_setting_quirk(chip, iface, altno); + + + return 0; +} + +int snd_usb_apply_boot_quirk(struct usb_device *dev, + struct usb_interface *intf, + const struct snd_usb_audio_quirk *quirk, + unsigned int id) +{ + switch (id) { + case USB_ID(0x041e, 0x3000): + /* SB Extigy needs special boot-up sequence */ + /* if more models come, this will go to the quirk list. */ + return snd_usb_extigy_boot_quirk(dev, intf); + + case USB_ID(0x041e, 0x3020): + /* SB Audigy 2 NX needs its own boot-up magic, too */ + return snd_usb_audigy2nx_boot_quirk(dev); + + case USB_ID(0x10f5, 0x0200): + /* C-Media CM106 / Turtle Beach Audio Advantage Roadie */ + return snd_usb_cm106_boot_quirk(dev); + + case USB_ID(0x0d8c, 0x0102): + /* C-Media CM6206 / CM106-Like Sound Device */ + case USB_ID(0x0ccd, 0x00b1): /* Terratec Aureon 7.1 USB */ + return snd_usb_cm6206_boot_quirk(dev); + + case USB_ID(0x0dba, 0x3000): + /* Digidesign Mbox 2 */ + return snd_usb_mbox2_boot_quirk(dev); + case USB_ID(0x0dba, 0x5000): + /* Digidesign Mbox 3 */ + return snd_usb_mbox3_boot_quirk(dev); + + + case USB_ID(0x1235, 0x0010): /* Focusrite Novation Saffire 6 USB */ + case USB_ID(0x1235, 0x0018): /* Focusrite Novation Twitch */ + return snd_usb_novation_boot_quirk(dev); + + case USB_ID(0x133e, 0x0815): + /* Access Music VirusTI Desktop */ + return snd_usb_accessmusic_boot_quirk(dev); + + case USB_ID(0x17cc, 0x1000): /* Komplete Audio 6 */ + case USB_ID(0x17cc, 0x1010): /* Traktor Audio 6 */ + case USB_ID(0x17cc, 0x1020): /* Traktor Audio 10 */ + return snd_usb_nativeinstruments_boot_quirk(dev); + case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */ + return snd_usb_fasttrackpro_boot_quirk(dev); + case USB_ID(0x047f, 0xc010): /* Plantronics Gamecom 780 */ + return snd_usb_gamecon780_boot_quirk(dev); + case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx 3 */ + return snd_usb_axefx3_boot_quirk(dev); + case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook II */ + /* + * For some reason interface 3 with vendor-spec class is + * detected on MicroBook IIc. + */ + if (get_iface_desc(intf->altsetting)->bInterfaceClass == + USB_CLASS_VENDOR_SPEC && + get_iface_desc(intf->altsetting)->bInterfaceNumber < 3) + return snd_usb_motu_microbookii_boot_quirk(dev); + break; + } + + return 0; +} + +int snd_usb_apply_boot_quirk_once(struct usb_device *dev, + struct usb_interface *intf, + const struct snd_usb_audio_quirk *quirk, + unsigned int id) +{ + switch (id) { + case USB_ID(0x07fd, 0x0008): /* MOTU M Series, 1st hardware version */ + return snd_usb_motu_m_series_boot_quirk(dev); + } + + return 0; +} + +/* + * check if the device uses big-endian samples + */ +int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, + const struct audioformat *fp) +{ + /* it depends on altsetting whether the device is big-endian or not */ + switch (chip->usb_id) { + case USB_ID(0x0763, 0x2001): /* M-Audio Quattro: captured data only */ + if (fp->altsetting == 2 || fp->altsetting == 3 || + fp->altsetting == 5 || fp->altsetting == 6) + return 1; + break; + case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ + if (chip->setup == 0x00 || + fp->altsetting == 1 || fp->altsetting == 2 || + fp->altsetting == 3) + return 1; + break; + case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */ + if (fp->altsetting == 2 || fp->altsetting == 3 || + fp->altsetting == 5 || fp->altsetting == 6) + return 1; + break; + } + return 0; +} + +/* + * For E-Mu 0404USB/0202USB/TrackerPre/0204 sample rate should be set for device, + * not for interface. + */ + +enum { + EMU_QUIRK_SR_44100HZ = 0, + EMU_QUIRK_SR_48000HZ, + EMU_QUIRK_SR_88200HZ, + EMU_QUIRK_SR_96000HZ, + EMU_QUIRK_SR_176400HZ, + EMU_QUIRK_SR_192000HZ +}; + +static void set_format_emu_quirk(struct snd_usb_substream *subs, + const struct audioformat *fmt) +{ + unsigned char emu_samplerate_id = 0; + + /* When capture is active + * sample rate shouldn't be changed + * by playback substream + */ + if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) { + if (subs->stream->substream[SNDRV_PCM_STREAM_CAPTURE].cur_audiofmt) + return; + } + + switch (fmt->rate_min) { + case 48000: + emu_samplerate_id = EMU_QUIRK_SR_48000HZ; + break; + case 88200: + emu_samplerate_id = EMU_QUIRK_SR_88200HZ; + break; + case 96000: + emu_samplerate_id = EMU_QUIRK_SR_96000HZ; + break; + case 176400: + emu_samplerate_id = EMU_QUIRK_SR_176400HZ; + break; + case 192000: + emu_samplerate_id = EMU_QUIRK_SR_192000HZ; + break; + default: + emu_samplerate_id = EMU_QUIRK_SR_44100HZ; + break; + } + snd_emuusb_set_samplerate(subs->stream->chip, emu_samplerate_id); + subs->pkt_offset_adj = (emu_samplerate_id >= EMU_QUIRK_SR_176400HZ) ? 4 : 0; +} + +static int pioneer_djm_set_format_quirk(struct snd_usb_substream *subs, + u16 windex) +{ + unsigned int cur_rate = subs->data_endpoint->cur_rate; + u8 sr[3]; + // Convert to little endian + sr[0] = cur_rate & 0xff; + sr[1] = (cur_rate >> 8) & 0xff; + sr[2] = (cur_rate >> 16) & 0xff; + usb_set_interface(subs->dev, 0, 1); + // we should derive windex from fmt-sync_ep but it's not set + snd_usb_ctl_msg(subs->stream->chip->dev, + usb_sndctrlpipe(subs->stream->chip->dev, 0), + 0x01, 0x22, 0x0100, windex, &sr, 0x0003); + return 0; +} + +void snd_usb_set_format_quirk(struct snd_usb_substream *subs, + const struct audioformat *fmt) +{ + switch (subs->stream->chip->usb_id) { + case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */ + case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */ + case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */ + case USB_ID(0x041e, 0x3f19): /* E-Mu 0204 USB */ + set_format_emu_quirk(subs, fmt); + break; + case USB_ID(0x534d, 0x0021): /* MacroSilicon MS2100/MS2106 */ + case USB_ID(0x534d, 0x2109): /* MacroSilicon MS2109 */ + subs->stream_offset_adj = 2; + break; + case USB_ID(0x2b73, 0x0013): /* Pioneer DJM-450 */ + pioneer_djm_set_format_quirk(subs, 0x0082); + break; + case USB_ID(0x08e4, 0x017f): /* Pioneer DJM-750 */ + case USB_ID(0x08e4, 0x0163): /* Pioneer DJM-850 */ + pioneer_djm_set_format_quirk(subs, 0x0086); + break; + } +} + +int snd_usb_select_mode_quirk(struct snd_usb_audio *chip, + const struct audioformat *fmt) +{ + struct usb_device *dev = chip->dev; + int err; + + if (chip->quirk_flags & QUIRK_FLAG_ITF_USB_DSD_DAC) { + /* First switch to alt set 0, otherwise the mode switch cmd + * will not be accepted by the DAC + */ + err = usb_set_interface(dev, fmt->iface, 0); + if (err < 0) + return err; + + msleep(20); /* Delay needed after setting the interface */ + + /* Vendor mode switch cmd is required. */ + if (fmt->formats & SNDRV_PCM_FMTBIT_DSD_U32_BE) { + /* DSD mode (DSD_U32) requested */ + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0, + USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, + 1, 1, NULL, 0); + if (err < 0) + return err; + + } else { + /* PCM or DOP mode (S32) requested */ + /* PCM mode (S16) requested */ + err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0, + USB_DIR_OUT|USB_TYPE_VENDOR|USB_RECIP_INTERFACE, + 0, 1, NULL, 0); + if (err < 0) + return err; + + } + msleep(20); + } + return 0; +} + +void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep) +{ + /* + * "Playback Design" products send bogus feedback data at the start + * of the stream. Ignore them. + */ + if (USB_ID_VENDOR(ep->chip->usb_id) == 0x23ba && + ep->type == SND_USB_ENDPOINT_TYPE_SYNC) + ep->skip_packets = 4; + + /* + * M-Audio Fast Track C400/C600 - when packets are not skipped, real + * world latency varies by approx. +/- 50 frames (at 96kHz) each time + * the stream is (re)started. When skipping packets 16 at endpoint + * start up, the real world latency is stable within +/- 1 frame (also + * across power cycles). + */ + if ((ep->chip->usb_id == USB_ID(0x0763, 0x2030) || + ep->chip->usb_id == USB_ID(0x0763, 0x2031)) && + ep->type == SND_USB_ENDPOINT_TYPE_DATA) + ep->skip_packets = 16; + + /* Work around devices that report unreasonable feedback data */ + if ((ep->chip->usb_id == USB_ID(0x0644, 0x8038) || /* TEAC UD-H01 */ + ep->chip->usb_id == USB_ID(0x1852, 0x5034)) && /* T+A Dac8 */ + ep->syncmaxsize == 4) + ep->tenor_fb_quirk = 1; +} + +/* quirk applied after snd_usb_ctl_msg(); not applied during boot quirks */ +void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, + __u8 request, __u8 requesttype, __u16 value, + __u16 index, void *data, __u16 size) +{ + struct snd_usb_audio *chip = dev_get_drvdata(&dev->dev); + + if (!chip || (requesttype & USB_TYPE_MASK) != USB_TYPE_CLASS) + return; + + if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY) + msleep(20); + else if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY_1M) + usleep_range(1000, 2000); + else if (chip->quirk_flags & QUIRK_FLAG_CTL_MSG_DELAY_5M) + usleep_range(5000, 6000); +} + +/* + * snd_usb_interface_dsd_format_quirks() is called from format.c to + * augment the PCM format bit-field for DSD types. The UAC standards + * don't have a designated bit field to denote DSD-capable interfaces, + * hence all hardware that is known to support this format has to be + * listed here. + */ +u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip, + struct audioformat *fp, + unsigned int sample_bytes) +{ + struct usb_interface *iface; + + /* Playback Designs */ + if (USB_ID_VENDOR(chip->usb_id) == 0x23ba && + USB_ID_PRODUCT(chip->usb_id) < 0x0110) { + switch (fp->altsetting) { + case 1: + fp->dsd_dop = true; + return SNDRV_PCM_FMTBIT_DSD_U16_LE; + case 2: + fp->dsd_bitrev = true; + return SNDRV_PCM_FMTBIT_DSD_U8; + case 3: + fp->dsd_bitrev = true; + return SNDRV_PCM_FMTBIT_DSD_U16_LE; + } + } + + /* XMOS based USB DACs */ + switch (chip->usb_id) { + case USB_ID(0x139f, 0x5504): /* Nagra DAC */ + case USB_ID(0x20b1, 0x3089): /* Mola-Mola DAC */ + case USB_ID(0x2522, 0x0007): /* LH Labs Geek Out 1V5 */ + case USB_ID(0x2522, 0x0009): /* LH Labs Geek Pulse X Inifinity 2V0 */ + case USB_ID(0x2522, 0x0012): /* LH Labs VI DAC Infinity */ + case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */ + if (fp->altsetting == 2) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; + + case USB_ID(0x0d8c, 0x0316): /* Hegel HD12 DSD */ + case USB_ID(0x10cb, 0x0103): /* The Bit Opus #3; with fp->dsd_raw */ + case USB_ID(0x16d0, 0x06b2): /* NuPrime DAC-10 */ + case USB_ID(0x16d0, 0x06b4): /* NuPrime Audio HD-AVP/AVA */ + case USB_ID(0x16d0, 0x0733): /* Furutech ADL Stratos */ + case USB_ID(0x16d0, 0x09d8): /* NuPrime IDA-8 */ + case USB_ID(0x16d0, 0x09db): /* NuPrime Audio DAC-9 */ + case USB_ID(0x16d0, 0x09dd): /* Encore mDSD */ + case USB_ID(0x1db5, 0x0003): /* Bryston BDA3 */ + case USB_ID(0x20a0, 0x4143): /* WaveIO USB Audio 2.0 */ + case USB_ID(0x22e1, 0xca01): /* HDTA Serenade DSD */ + case USB_ID(0x249c, 0x9326): /* M2Tech Young MkIII */ + case USB_ID(0x2616, 0x0106): /* PS Audio NuWave DAC */ + case USB_ID(0x2622, 0x0041): /* Audiolab M-DAC+ */ + case USB_ID(0x278b, 0x5100): /* Rotel RC-1590 */ + case USB_ID(0x27f7, 0x3002): /* W4S DAC-2v2SE */ + case USB_ID(0x29a2, 0x0086): /* Mutec MC3+ USB */ + case USB_ID(0x6b42, 0x0042): /* MSB Technology */ + if (fp->altsetting == 3) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; + + /* Amanero Combo384 USB based DACs with native DSD support */ + case USB_ID(0x16d0, 0x071a): /* Amanero - Combo384 */ + if (fp->altsetting == 2) { + switch (le16_to_cpu(chip->dev->descriptor.bcdDevice)) { + case 0x199: + return SNDRV_PCM_FMTBIT_DSD_U32_LE; + case 0x19b: + case 0x203: + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + default: + break; + } + } + break; + case USB_ID(0x16d0, 0x0a23): + if (fp->altsetting == 2) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + break; + + default: + break; + } + + /* ITF-USB DSD based DACs */ + if (chip->quirk_flags & QUIRK_FLAG_ITF_USB_DSD_DAC) { + iface = usb_ifnum_to_if(chip->dev, fp->iface); + + /* Altsetting 2 support native DSD if the num of altsets is + * three (0-2), + * Altsetting 3 support native DSD if the num of altsets is + * four (0-3). + */ + if (fp->altsetting == iface->num_altsetting - 1) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + } + + /* Mostly generic method to detect many DSD-capable implementations */ + if ((chip->quirk_flags & QUIRK_FLAG_DSD_RAW) && fp->dsd_raw) + return SNDRV_PCM_FMTBIT_DSD_U32_BE; + + return 0; +} + +void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip, + struct audioformat *fp, + int stream) +{ + switch (chip->usb_id) { + case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */ + /* Optoplay sets the sample rate attribute although + * it seems not supporting it in fact. + */ + fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE; + break; + case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */ + case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */ + /* doesn't set the sample rate attribute, but supports it */ + fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE; + break; + case USB_ID(0x0763, 0x2001): /* M-Audio Quattro USB */ + case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */ + case USB_ID(0x047f, 0x0ca1): /* plantronics headset */ + case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is + an older model 77d:223) */ + /* + * plantronics headset and Griffin iMic have set adaptive-in + * although it's really not... + */ + fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE; + if (stream == SNDRV_PCM_STREAM_PLAYBACK) + fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE; + else + fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC; + break; + case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook IIc */ + /* + * MaxPacketsOnly attribute is erroneously set in endpoint + * descriptors. As a result this card produces noise with + * all sample rates other than 96 kHz. + */ + fp->attributes &= ~UAC_EP_CS_ATTR_FILL_MAX; + break; + case USB_ID(0x1224, 0x2a25): /* Jieli Technology USB PHY 2.0 */ + /* mic works only when ep packet size is set to wMaxPacketSize */ + fp->attributes |= UAC_EP_CS_ATTR_FILL_MAX; + break; + case USB_ID(0x3511, 0x2b1e): /* Opencomm2 UC USB Bluetooth dongle */ + /* mic works only when ep pitch control is not set */ + if (stream == SNDRV_PCM_STREAM_CAPTURE) + fp->attributes &= ~UAC_EP_CS_ATTR_PITCH_CONTROL; + break; + } +} + +/* + * driver behavior quirk flags + */ +struct usb_audio_quirk_flags_table { + u32 id; + u32 flags; +}; + +#define DEVICE_FLG(vid, pid, _flags) \ + { .id = USB_ID(vid, pid), .flags = (_flags) } +#define VENDOR_FLG(vid, _flags) DEVICE_FLG(vid, 0, _flags) + +static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { + /* Device matches */ + DEVICE_FLG(0x041e, 0x3000, /* Creative SB Extigy */ + QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x041e, 0x4080, /* Creative Live Cam VF0610 */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x045e, 0x083c, /* MS USB Link headset */ + QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY | + QUIRK_FLAG_DISABLE_AUTOSUSPEND), + DEVICE_FLG(0x046d, 0x084c, /* Logitech ConferenceCam Connect */ + QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY_1M), + DEVICE_FLG(0x046d, 0x0991, /* Logitech QuickCam Pro */ + QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x046d, 0x09a4, /* Logitech QuickCam E 3500 */ + QUIRK_FLAG_CTL_MSG_DELAY_1M | QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x0499, 0x1509, /* Steinberg UR22 */ + QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x04d8, 0xfeea, /* Benchmark DAC1 Pre */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x04e8, 0xa051, /* Samsung USBC Headset (AKG) */ + QUIRK_FLAG_SKIP_CLOCK_SELECTOR | QUIRK_FLAG_CTL_MSG_DELAY_5M), + DEVICE_FLG(0x054c, 0x0b8c, /* Sony WALKMAN NW-A45 DAC */ + QUIRK_FLAG_SET_IFACE_FIRST), + DEVICE_FLG(0x0556, 0x0014, /* Phoenix Audio TMX320VC */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x05a3, 0x9420, /* ELP HD USB Camera */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x05a7, 0x1020, /* Bose Companion 5 */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x05e1, 0x0408, /* Syntek STK1160 */ + QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x05e1, 0x0480, /* Hauppauge Woodbury */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x0644, 0x8043, /* TEAC UD-501/UD-501V2/UD-503/NT-503 */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY | + QUIRK_FLAG_IFACE_DELAY), + DEVICE_FLG(0x0644, 0x8044, /* Esoteric D-05X */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY | + QUIRK_FLAG_IFACE_DELAY), + DEVICE_FLG(0x0644, 0x804a, /* TEAC UD-301 */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY | + QUIRK_FLAG_IFACE_DELAY), + DEVICE_FLG(0x0644, 0x805f, /* TEAC Model 12 */ + QUIRK_FLAG_FORCE_IFACE_RESET), + DEVICE_FLG(0x0644, 0x806b, /* TEAC UD-701 */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY | + QUIRK_FLAG_IFACE_DELAY), + DEVICE_FLG(0x06f8, 0xb000, /* Hercules DJ Console (Windows Edition) */ + QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x06f8, 0xd002, /* Hercules DJ Console (Macintosh Edition) */ + QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x0711, 0x5800, /* MCT Trigger 5 USB-to-HDMI */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x074d, 0x3553, /* Outlaw RR2150 (Micronas UAC3553B) */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x0763, 0x2030, /* M-Audio Fast Track C400 */ + QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x0763, 0x2031, /* M-Audio Fast Track C600 */ + QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x08bb, 0x2702, /* LineX FM Transmitter */ + QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x0951, 0x16ad, /* Kingston HyperX */ + QUIRK_FLAG_CTL_MSG_DELAY_1M), + DEVICE_FLG(0x0b0e, 0x0349, /* Jabra 550a */ + QUIRK_FLAG_CTL_MSG_DELAY_1M), + DEVICE_FLG(0x0fd9, 0x0008, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x1395, 0x740a, /* Sennheiser DECT */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x1397, 0x0507, /* Behringer UMC202HD */ + QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x1397, 0x0508, /* Behringer UMC204HD */ + QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x1397, 0x0509, /* Behringer UMC404HD */ + QUIRK_FLAG_PLAYBACK_FIRST | QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x13e5, 0x0001, /* Serato Phono */ + QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x154e, 0x1002, /* Denon DCD-1500RE */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY), + DEVICE_FLG(0x154e, 0x1003, /* Denon DA-300USB */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY), + DEVICE_FLG(0x154e, 0x3005, /* Marantz HD-DAC1 */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY), + DEVICE_FLG(0x154e, 0x3006, /* Marantz SA-14S1 */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY), + DEVICE_FLG(0x154e, 0x300b, /* Marantz SA-KI RUBY / SA-12 */ + QUIRK_FLAG_DSD_RAW), + DEVICE_FLG(0x154e, 0x500e, /* Denon DN-X1600 */ + QUIRK_FLAG_IGNORE_CLOCK_SOURCE), + DEVICE_FLG(0x1686, 0x00dd, /* Zoom R16/24 */ + QUIRK_FLAG_TX_LENGTH | QUIRK_FLAG_CTL_MSG_DELAY_1M), + DEVICE_FLG(0x17aa, 0x1046, /* Lenovo ThinkStation P620 Rear Line-in, Line-out and Microphone */ + QUIRK_FLAG_DISABLE_AUTOSUSPEND), + DEVICE_FLG(0x17aa, 0x104d, /* Lenovo ThinkStation P620 Internal Speaker + Front Headset */ + QUIRK_FLAG_DISABLE_AUTOSUSPEND), + DEVICE_FLG(0x1852, 0x5065, /* Luxman DA-06 */ + QUIRK_FLAG_ITF_USB_DSD_DAC | QUIRK_FLAG_CTL_MSG_DELAY), + DEVICE_FLG(0x1901, 0x0191, /* GE B850V3 CP2114 audio interface */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x2040, 0x7200, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7201, /* Hauppauge HVR-950Q-MXL */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7210, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7211, /* Hauppauge HVR-950Q-MXL */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7213, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7217, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x721b, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x721e, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x721f, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7240, /* Hauppauge HVR-850 */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7260, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7270, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7280, /* Hauppauge HVR-950Q */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x7281, /* Hauppauge HVR-950Q-MXL */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x2040, 0x8200, /* Hauppauge Woodbury */ + QUIRK_FLAG_SHARE_MEDIA_DEVICE | QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x21b4, 0x0081, /* AudioQuest DragonFly */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x21b4, 0x0230, /* Ayre QB-9 Twenty */ + QUIRK_FLAG_DSD_RAW), + DEVICE_FLG(0x21b4, 0x0232, /* Ayre QX-5 Twenty */ + QUIRK_FLAG_DSD_RAW), + DEVICE_FLG(0x2522, 0x0007, /* LH Labs Geek Out HD Audio 1V5 */ + QUIRK_FLAG_SET_IFACE_FIRST), + DEVICE_FLG(0x2708, 0x0002, /* Audient iD14 */ + QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x2912, 0x30c8, /* Audioengine D1 */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x30be, 0x0101, /* Schiit Hel */ + QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x413c, 0xa506, /* Dell AE515 sound bar */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x534d, 0x0021, /* MacroSilicon MS2100/MS2106 */ + QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x534d, 0x2109, /* MacroSilicon MS2109 */ + QUIRK_FLAG_ALIGN_TRANSFER), + DEVICE_FLG(0x1224, 0x2a25, /* Jieli Technology USB PHY 2.0 */ + QUIRK_FLAG_GET_SAMPLE_RATE), + DEVICE_FLG(0x2b53, 0x0023, /* Fiero SC-01 (firmware v1.0.0 @ 48 kHz) */ + QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x2b53, 0x0024, /* Fiero SC-01 (firmware v1.0.0 @ 96 kHz) */ + QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x2b53, 0x0031, /* Fiero SC-01 (firmware v1.1.0) */ + QUIRK_FLAG_GENERIC_IMPLICIT_FB), + DEVICE_FLG(0x0525, 0xa4ad, /* Hamedal C20 usb camero */ + QUIRK_FLAG_IFACE_SKIP_CLOSE), + DEVICE_FLG(0x0ecb, 0x205c, /* JBL Quantum610 Wireless */ + QUIRK_FLAG_FIXED_RATE), + DEVICE_FLG(0x0ecb, 0x2069, /* JBL Quantum810 Wireless */ + QUIRK_FLAG_FIXED_RATE), + DEVICE_FLG(0x1bcf, 0x2283, /* NexiGo N930AF FHD Webcam */ + QUIRK_FLAG_GET_SAMPLE_RATE), + + /* Vendor matches */ + VENDOR_FLG(0x045e, /* MS Lifecam */ + QUIRK_FLAG_GET_SAMPLE_RATE), + VENDOR_FLG(0x046d, /* Logitech */ + QUIRK_FLAG_CTL_MSG_DELAY_1M), + VENDOR_FLG(0x047f, /* Plantronics */ + QUIRK_FLAG_GET_SAMPLE_RATE | QUIRK_FLAG_CTL_MSG_DELAY), + VENDOR_FLG(0x0644, /* TEAC Corp. */ + QUIRK_FLAG_CTL_MSG_DELAY | QUIRK_FLAG_IFACE_DELAY), + VENDOR_FLG(0x07fd, /* MOTU */ + QUIRK_FLAG_VALIDATE_RATES), + VENDOR_FLG(0x1235, /* Focusrite Novation */ + QUIRK_FLAG_VALIDATE_RATES), + VENDOR_FLG(0x1511, /* AURALiC */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x152a, /* Thesycon devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x18d1, /* iBasso devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x1de7, /* Phoenix Audio */ + QUIRK_FLAG_GET_SAMPLE_RATE), + VENDOR_FLG(0x20b1, /* XMOS based devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x21ed, /* Accuphase Laboratory */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x22d9, /* Oppo */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x23ba, /* Playback Design */ + QUIRK_FLAG_CTL_MSG_DELAY | QUIRK_FLAG_IFACE_DELAY | + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x25ce, /* Mytek devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x278b, /* Rotel? */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x292b, /* Gustard/Ess based devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x2972, /* FiiO devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x2ab6, /* T+A devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x2afd, /* McIntosh Laboratory, Inc. */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x2d87, /* Cayin device */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x3336, /* HEM devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x3353, /* Khadas devices */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x35f4, /* MSB Technology */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0x3842, /* EVGA */ + QUIRK_FLAG_DSD_RAW), + VENDOR_FLG(0xc502, /* HiBy devices */ + QUIRK_FLAG_DSD_RAW), + + {} /* terminator */ +}; + +void snd_usb_init_quirk_flags(struct snd_usb_audio *chip) +{ + const struct usb_audio_quirk_flags_table *p; + + for (p = quirk_flags_table; p->id; p++) { + if (chip->usb_id == p->id || + (!USB_ID_PRODUCT(p->id) && + USB_ID_VENDOR(chip->usb_id) == USB_ID_VENDOR(p->id))) { + usb_audio_dbg(chip, + "Set quirk_flags 0x%x for device %04x:%04x\n", + p->flags, USB_ID_VENDOR(chip->usb_id), + USB_ID_PRODUCT(chip->usb_id)); + chip->quirk_flags |= p->flags; + return; + } + } +} diff --git a/sound/usb/quirks.h b/sound/usb/quirks.h new file mode 100644 index 000000000..f9bfd5ac7 --- /dev/null +++ b/sound/usb/quirks.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_QUIRKS_H +#define __USBAUDIO_QUIRKS_H + +struct audioformat; +struct snd_usb_endpoint; +struct snd_usb_substream; + +int snd_usb_create_quirk(struct snd_usb_audio *chip, + struct usb_interface *iface, + struct usb_driver *driver, + const struct snd_usb_audio_quirk *quirk); + +int snd_usb_apply_interface_quirk(struct snd_usb_audio *chip, + int iface, + int altno); + +int snd_usb_apply_boot_quirk(struct usb_device *dev, + struct usb_interface *intf, + const struct snd_usb_audio_quirk *quirk, + unsigned int usb_id); + +int snd_usb_apply_boot_quirk_once(struct usb_device *dev, + struct usb_interface *intf, + const struct snd_usb_audio_quirk *quirk, + unsigned int usb_id); + +void snd_usb_set_format_quirk(struct snd_usb_substream *subs, + const struct audioformat *fmt); + +int snd_usb_is_big_endian_format(struct snd_usb_audio *chip, + const struct audioformat *fp); + +void snd_usb_endpoint_start_quirk(struct snd_usb_endpoint *ep); + +void snd_usb_ctl_msg_quirk(struct usb_device *dev, unsigned int pipe, + __u8 request, __u8 requesttype, __u16 value, + __u16 index, void *data, __u16 size); + +int snd_usb_select_mode_quirk(struct snd_usb_audio *chip, + const struct audioformat *fmt); + +u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip, + struct audioformat *fp, + unsigned int sample_bytes); + +void snd_usb_audioformat_attributes_quirk(struct snd_usb_audio *chip, + struct audioformat *fp, + int stream); + +void snd_usb_init_quirk_flags(struct snd_usb_audio *chip); + +#endif /* __USBAUDIO_QUIRKS_H */ diff --git a/sound/usb/stream.c b/sound/usb/stream.c new file mode 100644 index 000000000..3d4add94e --- /dev/null +++ b/sound/usb/stream.c @@ -0,0 +1,1263 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + + +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> +#include <linux/usb/audio-v3.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/control.h> +#include <sound/tlv.h> + +#include "usbaudio.h" +#include "card.h" +#include "proc.h" +#include "quirks.h" +#include "endpoint.h" +#include "pcm.h" +#include "helper.h" +#include "format.h" +#include "clock.h" +#include "stream.h" +#include "power.h" +#include "media.h" + +static void audioformat_free(struct audioformat *fp) +{ + list_del(&fp->list); /* unlink for avoiding double-free */ + kfree(fp->rate_table); + kfree(fp->chmap); + kfree(fp); +} + +/* + * free a substream + */ +static void free_substream(struct snd_usb_substream *subs) +{ + struct audioformat *fp, *n; + + if (!subs->num_formats) + return; /* not initialized */ + list_for_each_entry_safe(fp, n, &subs->fmt_list, list) + audioformat_free(fp); + kfree(subs->str_pd); + snd_media_stream_delete(subs); +} + + +/* + * free a usb stream instance + */ +static void snd_usb_audio_stream_free(struct snd_usb_stream *stream) +{ + free_substream(&stream->substream[0]); + free_substream(&stream->substream[1]); + list_del(&stream->list); + kfree(stream); +} + +static void snd_usb_audio_pcm_free(struct snd_pcm *pcm) +{ + struct snd_usb_stream *stream = pcm->private_data; + if (stream) { + stream->pcm = NULL; + snd_usb_audio_stream_free(stream); + } +} + +/* + * initialize the substream instance. + */ + +static void snd_usb_init_substream(struct snd_usb_stream *as, + int stream, + struct audioformat *fp, + struct snd_usb_power_domain *pd) +{ + struct snd_usb_substream *subs = &as->substream[stream]; + + INIT_LIST_HEAD(&subs->fmt_list); + spin_lock_init(&subs->lock); + + subs->stream = as; + subs->direction = stream; + subs->dev = as->chip->dev; + subs->txfr_quirk = !!(as->chip->quirk_flags & QUIRK_FLAG_ALIGN_TRANSFER); + subs->tx_length_quirk = !!(as->chip->quirk_flags & QUIRK_FLAG_TX_LENGTH); + subs->speed = snd_usb_get_speed(subs->dev); + subs->pkt_offset_adj = 0; + subs->stream_offset_adj = 0; + + snd_usb_set_pcm_ops(as->pcm, stream); + + list_add_tail(&fp->list, &subs->fmt_list); + subs->formats |= fp->formats; + subs->num_formats++; + subs->fmt_type = fp->fmt_type; + subs->ep_num = fp->endpoint; + if (fp->channels > subs->channels_max) + subs->channels_max = fp->channels; + + if (pd) { + subs->str_pd = pd; + /* Initialize Power Domain to idle status D1 */ + snd_usb_power_domain_set(subs->stream->chip, pd, + UAC3_PD_STATE_D1); + } + + snd_usb_preallocate_buffer(subs); +} + +/* kctl callbacks for usb-audio channel maps */ +static int usb_chmap_ctl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); + struct snd_usb_substream *subs = info->private_data; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = subs->channels_max; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = SNDRV_CHMAP_LAST; + return 0; +} + +/* check whether a duplicated entry exists in the audiofmt list */ +static bool have_dup_chmap(struct snd_usb_substream *subs, + struct audioformat *fp) +{ + struct audioformat *prev = fp; + + list_for_each_entry_continue_reverse(prev, &subs->fmt_list, list) { + if (prev->chmap && + !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap))) + return true; + } + return false; +} + +static int usb_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag, + unsigned int size, unsigned int __user *tlv) +{ + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); + struct snd_usb_substream *subs = info->private_data; + struct audioformat *fp; + unsigned int __user *dst; + int count = 0; + + if (size < 8) + return -ENOMEM; + if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv)) + return -EFAULT; + size -= 8; + dst = tlv + 2; + list_for_each_entry(fp, &subs->fmt_list, list) { + int i, ch_bytes; + + if (!fp->chmap) + continue; + if (have_dup_chmap(subs, fp)) + continue; + /* copy the entry */ + ch_bytes = fp->chmap->channels * 4; + if (size < 8 + ch_bytes) + return -ENOMEM; + if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) || + put_user(ch_bytes, dst + 1)) + return -EFAULT; + dst += 2; + for (i = 0; i < fp->chmap->channels; i++, dst++) { + if (put_user(fp->chmap->map[i], dst)) + return -EFAULT; + } + + count += 8 + ch_bytes; + size -= 8 + ch_bytes; + } + if (put_user(count, tlv + 1)) + return -EFAULT; + return 0; +} + +static int usb_chmap_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); + struct snd_usb_substream *subs = info->private_data; + struct snd_pcm_chmap_elem *chmap = NULL; + int i = 0; + + if (subs->cur_audiofmt) + chmap = subs->cur_audiofmt->chmap; + if (chmap) { + for (i = 0; i < chmap->channels; i++) + ucontrol->value.integer.value[i] = chmap->map[i]; + } + for (; i < subs->channels_max; i++) + ucontrol->value.integer.value[i] = 0; + return 0; +} + +/* create a chmap kctl assigned to the given USB substream */ +static int add_chmap(struct snd_pcm *pcm, int stream, + struct snd_usb_substream *subs) +{ + struct audioformat *fp; + struct snd_pcm_chmap *chmap; + struct snd_kcontrol *kctl; + int err; + + list_for_each_entry(fp, &subs->fmt_list, list) + if (fp->chmap) + goto ok; + /* no chmap is found */ + return 0; + + ok: + err = snd_pcm_add_chmap_ctls(pcm, stream, NULL, 0, 0, &chmap); + if (err < 0) + return err; + + /* override handlers */ + chmap->private_data = subs; + kctl = chmap->kctl; + kctl->info = usb_chmap_ctl_info; + kctl->get = usb_chmap_ctl_get; + kctl->tlv.c = usb_chmap_ctl_tlv; + + return 0; +} + +/* convert from USB ChannelConfig bits to ALSA chmap element */ +static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits, + int protocol) +{ + static const unsigned int uac1_maps[] = { + SNDRV_CHMAP_FL, /* left front */ + SNDRV_CHMAP_FR, /* right front */ + SNDRV_CHMAP_FC, /* center front */ + SNDRV_CHMAP_LFE, /* LFE */ + SNDRV_CHMAP_SL, /* left surround */ + SNDRV_CHMAP_SR, /* right surround */ + SNDRV_CHMAP_FLC, /* left of center */ + SNDRV_CHMAP_FRC, /* right of center */ + SNDRV_CHMAP_RC, /* surround */ + SNDRV_CHMAP_SL, /* side left */ + SNDRV_CHMAP_SR, /* side right */ + SNDRV_CHMAP_TC, /* top */ + 0 /* terminator */ + }; + static const unsigned int uac2_maps[] = { + SNDRV_CHMAP_FL, /* front left */ + SNDRV_CHMAP_FR, /* front right */ + SNDRV_CHMAP_FC, /* front center */ + SNDRV_CHMAP_LFE, /* LFE */ + SNDRV_CHMAP_RL, /* back left */ + SNDRV_CHMAP_RR, /* back right */ + SNDRV_CHMAP_FLC, /* front left of center */ + SNDRV_CHMAP_FRC, /* front right of center */ + SNDRV_CHMAP_RC, /* back center */ + SNDRV_CHMAP_SL, /* side left */ + SNDRV_CHMAP_SR, /* side right */ + SNDRV_CHMAP_TC, /* top center */ + SNDRV_CHMAP_TFL, /* top front left */ + SNDRV_CHMAP_TFC, /* top front center */ + SNDRV_CHMAP_TFR, /* top front right */ + SNDRV_CHMAP_TRL, /* top back left */ + SNDRV_CHMAP_TRC, /* top back center */ + SNDRV_CHMAP_TRR, /* top back right */ + SNDRV_CHMAP_TFLC, /* top front left of center */ + SNDRV_CHMAP_TFRC, /* top front right of center */ + SNDRV_CHMAP_LLFE, /* left LFE */ + SNDRV_CHMAP_RLFE, /* right LFE */ + SNDRV_CHMAP_TSL, /* top side left */ + SNDRV_CHMAP_TSR, /* top side right */ + SNDRV_CHMAP_BC, /* bottom center */ + SNDRV_CHMAP_RLC, /* back left of center */ + SNDRV_CHMAP_RRC, /* back right of center */ + 0 /* terminator */ + }; + struct snd_pcm_chmap_elem *chmap; + const unsigned int *maps; + int c; + + if (channels > ARRAY_SIZE(chmap->map)) + return NULL; + + chmap = kzalloc(sizeof(*chmap), GFP_KERNEL); + if (!chmap) + return NULL; + + maps = protocol == UAC_VERSION_2 ? uac2_maps : uac1_maps; + chmap->channels = channels; + c = 0; + + if (bits) { + for (; bits && *maps; maps++, bits >>= 1) + if (bits & 1) + chmap->map[c++] = *maps; + } else { + /* If we're missing wChannelConfig, then guess something + to make sure the channel map is not skipped entirely */ + if (channels == 1) + chmap->map[c++] = SNDRV_CHMAP_MONO; + else + for (; c < channels && *maps; maps++) + chmap->map[c++] = *maps; + } + + for (; c < channels; c++) + chmap->map[c] = SNDRV_CHMAP_UNKNOWN; + + return chmap; +} + +/* UAC3 device stores channels information in Cluster Descriptors */ +static struct +snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor + *cluster) +{ + unsigned int channels = cluster->bNrChannels; + struct snd_pcm_chmap_elem *chmap; + void *p = cluster; + int len, c; + + if (channels > ARRAY_SIZE(chmap->map)) + return NULL; + + chmap = kzalloc(sizeof(*chmap), GFP_KERNEL); + if (!chmap) + return NULL; + + len = le16_to_cpu(cluster->wLength); + c = 0; + p += sizeof(struct uac3_cluster_header_descriptor); + + while (((p - (void *)cluster) < len) && (c < channels)) { + struct uac3_cluster_segment_descriptor *cs_desc = p; + u16 cs_len; + u8 cs_type; + + cs_len = le16_to_cpu(cs_desc->wLength); + cs_type = cs_desc->bSegmentType; + + if (cs_type == UAC3_CHANNEL_INFORMATION) { + struct uac3_cluster_information_segment_descriptor *is = p; + unsigned char map; + + /* + * TODO: this conversion is not complete, update it + * after adding UAC3 values to asound.h + */ + switch (is->bChRelationship) { + case UAC3_CH_MONO: + map = SNDRV_CHMAP_MONO; + break; + case UAC3_CH_LEFT: + case UAC3_CH_FRONT_LEFT: + case UAC3_CH_HEADPHONE_LEFT: + map = SNDRV_CHMAP_FL; + break; + case UAC3_CH_RIGHT: + case UAC3_CH_FRONT_RIGHT: + case UAC3_CH_HEADPHONE_RIGHT: + map = SNDRV_CHMAP_FR; + break; + case UAC3_CH_FRONT_CENTER: + map = SNDRV_CHMAP_FC; + break; + case UAC3_CH_FRONT_LEFT_OF_CENTER: + map = SNDRV_CHMAP_FLC; + break; + case UAC3_CH_FRONT_RIGHT_OF_CENTER: + map = SNDRV_CHMAP_FRC; + break; + case UAC3_CH_SIDE_LEFT: + map = SNDRV_CHMAP_SL; + break; + case UAC3_CH_SIDE_RIGHT: + map = SNDRV_CHMAP_SR; + break; + case UAC3_CH_BACK_LEFT: + map = SNDRV_CHMAP_RL; + break; + case UAC3_CH_BACK_RIGHT: + map = SNDRV_CHMAP_RR; + break; + case UAC3_CH_BACK_CENTER: + map = SNDRV_CHMAP_RC; + break; + case UAC3_CH_BACK_LEFT_OF_CENTER: + map = SNDRV_CHMAP_RLC; + break; + case UAC3_CH_BACK_RIGHT_OF_CENTER: + map = SNDRV_CHMAP_RRC; + break; + case UAC3_CH_TOP_CENTER: + map = SNDRV_CHMAP_TC; + break; + case UAC3_CH_TOP_FRONT_LEFT: + map = SNDRV_CHMAP_TFL; + break; + case UAC3_CH_TOP_FRONT_RIGHT: + map = SNDRV_CHMAP_TFR; + break; + case UAC3_CH_TOP_FRONT_CENTER: + map = SNDRV_CHMAP_TFC; + break; + case UAC3_CH_TOP_FRONT_LOC: + map = SNDRV_CHMAP_TFLC; + break; + case UAC3_CH_TOP_FRONT_ROC: + map = SNDRV_CHMAP_TFRC; + break; + case UAC3_CH_TOP_SIDE_LEFT: + map = SNDRV_CHMAP_TSL; + break; + case UAC3_CH_TOP_SIDE_RIGHT: + map = SNDRV_CHMAP_TSR; + break; + case UAC3_CH_TOP_BACK_LEFT: + map = SNDRV_CHMAP_TRL; + break; + case UAC3_CH_TOP_BACK_RIGHT: + map = SNDRV_CHMAP_TRR; + break; + case UAC3_CH_TOP_BACK_CENTER: + map = SNDRV_CHMAP_TRC; + break; + case UAC3_CH_BOTTOM_CENTER: + map = SNDRV_CHMAP_BC; + break; + case UAC3_CH_LOW_FREQUENCY_EFFECTS: + map = SNDRV_CHMAP_LFE; + break; + case UAC3_CH_LFE_LEFT: + map = SNDRV_CHMAP_LLFE; + break; + case UAC3_CH_LFE_RIGHT: + map = SNDRV_CHMAP_RLFE; + break; + case UAC3_CH_RELATIONSHIP_UNDEFINED: + default: + map = SNDRV_CHMAP_UNKNOWN; + break; + } + chmap->map[c++] = map; + } + p += cs_len; + } + + if (channels < c) + pr_err("%s: channel number mismatch\n", __func__); + + chmap->channels = channels; + + for (; c < channels; c++) + chmap->map[c] = SNDRV_CHMAP_UNKNOWN; + + return chmap; +} + +/* + * add this endpoint to the chip instance. + * if a stream with the same endpoint already exists, append to it. + * if not, create a new pcm stream. note, fp is added to the substream + * fmt_list and will be freed on the chip instance release. do not free + * fp or do remove it from the substream fmt_list to avoid double-free. + */ +static int __snd_usb_add_audio_stream(struct snd_usb_audio *chip, + int stream, + struct audioformat *fp, + struct snd_usb_power_domain *pd) + +{ + struct snd_usb_stream *as; + struct snd_usb_substream *subs; + struct snd_pcm *pcm; + int err; + + list_for_each_entry(as, &chip->pcm_list, list) { + if (as->fmt_type != fp->fmt_type) + continue; + subs = &as->substream[stream]; + if (subs->ep_num == fp->endpoint) { + list_add_tail(&fp->list, &subs->fmt_list); + subs->num_formats++; + subs->formats |= fp->formats; + return 0; + } + } + + if (chip->card->registered) + chip->need_delayed_register = true; + + /* look for an empty stream */ + list_for_each_entry(as, &chip->pcm_list, list) { + if (as->fmt_type != fp->fmt_type) + continue; + subs = &as->substream[stream]; + if (subs->ep_num) + continue; + err = snd_pcm_new_stream(as->pcm, stream, 1); + if (err < 0) + return err; + snd_usb_init_substream(as, stream, fp, pd); + return add_chmap(as->pcm, stream, subs); + } + + /* create a new pcm */ + as = kzalloc(sizeof(*as), GFP_KERNEL); + if (!as) + return -ENOMEM; + as->pcm_index = chip->pcm_devs; + as->chip = chip; + as->fmt_type = fp->fmt_type; + err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs, + stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0, + stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1, + &pcm); + if (err < 0) { + kfree(as); + return err; + } + as->pcm = pcm; + pcm->private_data = as; + pcm->private_free = snd_usb_audio_pcm_free; + pcm->info_flags = 0; + if (chip->pcm_devs > 0) + sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs); + else + strcpy(pcm->name, "USB Audio"); + + snd_usb_init_substream(as, stream, fp, pd); + + /* + * Keep using head insertion for M-Audio Audiophile USB (tm) which has a + * fix to swap capture stream order in conf/cards/USB-audio.conf + */ + if (chip->usb_id == USB_ID(0x0763, 0x2003)) + list_add(&as->list, &chip->pcm_list); + else + list_add_tail(&as->list, &chip->pcm_list); + + chip->pcm_devs++; + + snd_usb_proc_pcm_format_add(as); + + return add_chmap(pcm, stream, &as->substream[stream]); +} + +int snd_usb_add_audio_stream(struct snd_usb_audio *chip, + int stream, + struct audioformat *fp) +{ + return __snd_usb_add_audio_stream(chip, stream, fp, NULL); +} + +static int snd_usb_add_audio_stream_v3(struct snd_usb_audio *chip, + int stream, + struct audioformat *fp, + struct snd_usb_power_domain *pd) +{ + return __snd_usb_add_audio_stream(chip, stream, fp, pd); +} + +static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip, + struct usb_host_interface *alts, + int protocol, int iface_no) +{ + /* parsed with a v1 header here. that's ok as we only look at the + * header first which is the same for both versions */ + struct uac_iso_endpoint_descriptor *csep; + struct usb_interface_descriptor *altsd = get_iface_desc(alts); + int attributes = 0; + + csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT); + + /* Creamware Noah has this descriptor after the 2nd endpoint */ + if (!csep && altsd->bNumEndpoints >= 2) + csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT); + + /* + * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra + * bytes after the first endpoint, go search the entire interface. + * Some devices have it directly *before* the standard endpoint. + */ + if (!csep) + csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT); + + if (!csep || csep->bLength < 7 || + csep->bDescriptorSubtype != UAC_EP_GENERAL) + goto error; + + if (protocol == UAC_VERSION_1) { + attributes = csep->bmAttributes; + } else if (protocol == UAC_VERSION_2) { + struct uac2_iso_endpoint_descriptor *csep2 = + (struct uac2_iso_endpoint_descriptor *) csep; + + if (csep2->bLength < sizeof(*csep2)) + goto error; + attributes = csep->bmAttributes & UAC_EP_CS_ATTR_FILL_MAX; + + /* emulate the endpoint attributes of a v1 device */ + if (csep2->bmControls & UAC2_CONTROL_PITCH) + attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL; + } else { /* UAC_VERSION_3 */ + struct uac3_iso_endpoint_descriptor *csep3 = + (struct uac3_iso_endpoint_descriptor *) csep; + + if (csep3->bLength < sizeof(*csep3)) + goto error; + /* emulate the endpoint attributes of a v1 device */ + if (le32_to_cpu(csep3->bmControls) & UAC2_CONTROL_PITCH) + attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL; + } + + return attributes; + + error: + usb_audio_warn(chip, + "%u:%d : no or invalid class specific endpoint descriptor\n", + iface_no, altsd->bAlternateSetting); + return 0; +} + +/* find an input terminal descriptor (either UAC1 or UAC2) with the given + * terminal id + */ +static void * +snd_usb_find_input_terminal_descriptor(struct usb_host_interface *ctrl_iface, + int terminal_id, int protocol) +{ + struct uac2_input_terminal_descriptor *term = NULL; + + while ((term = snd_usb_find_csint_desc(ctrl_iface->extra, + ctrl_iface->extralen, + term, UAC_INPUT_TERMINAL))) { + if (!snd_usb_validate_audio_desc(term, protocol)) + continue; + if (term->bTerminalID == terminal_id) + return term; + } + + return NULL; +} + +static void * +snd_usb_find_output_terminal_descriptor(struct usb_host_interface *ctrl_iface, + int terminal_id, int protocol) +{ + /* OK to use with both UAC2 and UAC3 */ + struct uac2_output_terminal_descriptor *term = NULL; + + while ((term = snd_usb_find_csint_desc(ctrl_iface->extra, + ctrl_iface->extralen, + term, UAC_OUTPUT_TERMINAL))) { + if (!snd_usb_validate_audio_desc(term, protocol)) + continue; + if (term->bTerminalID == terminal_id) + return term; + } + + return NULL; +} + +static struct audioformat * +audio_format_alloc_init(struct snd_usb_audio *chip, + struct usb_host_interface *alts, + int protocol, int iface_no, int altset_idx, + int altno, int num_channels, int clock) +{ + struct audioformat *fp; + + fp = kzalloc(sizeof(*fp), GFP_KERNEL); + if (!fp) + return NULL; + + fp->iface = iface_no; + fp->altsetting = altno; + fp->altset_idx = altset_idx; + fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; + fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; + fp->datainterval = snd_usb_parse_datainterval(chip, alts); + fp->protocol = protocol; + fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); + fp->channels = num_channels; + if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH) + fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1) + * (fp->maxpacksize & 0x7ff); + fp->clock = clock; + INIT_LIST_HEAD(&fp->list); + + return fp; +} + +static struct audioformat * +snd_usb_get_audioformat_uac12(struct snd_usb_audio *chip, + struct usb_host_interface *alts, + int protocol, int iface_no, int altset_idx, + int altno, int stream, int bm_quirk) +{ + struct usb_device *dev = chip->dev; + struct uac_format_type_i_continuous_descriptor *fmt; + unsigned int num_channels = 0, chconfig = 0; + struct audioformat *fp; + int clock = 0; + u64 format; + + /* get audio formats */ + if (protocol == UAC_VERSION_1) { + struct uac1_as_header_descriptor *as = + snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, UAC_AS_GENERAL); + struct uac_input_terminal_descriptor *iterm; + + if (!as) { + dev_err(&dev->dev, + "%u:%d : UAC_AS_GENERAL descriptor not found\n", + iface_no, altno); + return NULL; + } + + if (as->bLength < sizeof(*as)) { + dev_err(&dev->dev, + "%u:%d : invalid UAC_AS_GENERAL desc\n", + iface_no, altno); + return NULL; + } + + format = le16_to_cpu(as->wFormatTag); /* remember the format value */ + + iterm = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf, + as->bTerminalLink, + protocol); + if (iterm) { + num_channels = iterm->bNrChannels; + chconfig = le16_to_cpu(iterm->wChannelConfig); + } + } else { /* UAC_VERSION_2 */ + struct uac2_input_terminal_descriptor *input_term; + struct uac2_output_terminal_descriptor *output_term; + struct uac2_as_header_descriptor *as = + snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, UAC_AS_GENERAL); + + if (!as) { + dev_err(&dev->dev, + "%u:%d : UAC_AS_GENERAL descriptor not found\n", + iface_no, altno); + return NULL; + } + + if (as->bLength < sizeof(*as)) { + dev_err(&dev->dev, + "%u:%d : invalid UAC_AS_GENERAL desc\n", + iface_no, altno); + return NULL; + } + + num_channels = as->bNrChannels; + format = le32_to_cpu(as->bmFormats); + chconfig = le32_to_cpu(as->bmChannelConfig); + + /* + * lookup the terminal associated to this interface + * to extract the clock + */ + input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf, + as->bTerminalLink, + protocol); + if (input_term) { + clock = input_term->bCSourceID; + if (!chconfig && (num_channels == input_term->bNrChannels)) + chconfig = le32_to_cpu(input_term->bmChannelConfig); + goto found_clock; + } + + output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf, + as->bTerminalLink, + protocol); + if (output_term) { + clock = output_term->bCSourceID; + goto found_clock; + } + + dev_err(&dev->dev, + "%u:%d : bogus bTerminalLink %d\n", + iface_no, altno, as->bTerminalLink); + return NULL; + } + +found_clock: + /* get format type */ + fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, UAC_FORMAT_TYPE); + if (!fmt) { + dev_err(&dev->dev, + "%u:%d : no UAC_FORMAT_TYPE desc\n", + iface_no, altno); + return NULL; + } + if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8)) + || ((protocol == UAC_VERSION_2) && + (fmt->bLength < 6))) { + dev_err(&dev->dev, + "%u:%d : invalid UAC_FORMAT_TYPE desc\n", + iface_no, altno); + return NULL; + } + + /* + * Blue Microphones workaround: The last altsetting is + * identical with the previous one, except for a larger + * packet size, but is actually a mislabeled two-channel + * setting; ignore it. + * + * Part 2: analyze quirk flag and format + */ + if (bm_quirk && fmt->bNrChannels == 1 && fmt->bSubframeSize == 2) + return NULL; + + fp = audio_format_alloc_init(chip, alts, protocol, iface_no, + altset_idx, altno, num_channels, clock); + if (!fp) + return ERR_PTR(-ENOMEM); + + fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol, + iface_no); + + /* some quirks for attributes here */ + snd_usb_audioformat_attributes_quirk(chip, fp, stream); + + /* ok, let's parse further... */ + if (snd_usb_parse_audio_format(chip, fp, format, + fmt, stream) < 0) { + audioformat_free(fp); + return NULL; + } + + /* Create chmap */ + if (fp->channels != num_channels) + chconfig = 0; + + fp->chmap = convert_chmap(fp->channels, chconfig, protocol); + + return fp; +} + +static struct audioformat * +snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip, + struct usb_host_interface *alts, + struct snd_usb_power_domain **pd_out, + int iface_no, int altset_idx, + int altno, int stream) +{ + struct usb_device *dev = chip->dev; + struct uac3_input_terminal_descriptor *input_term; + struct uac3_output_terminal_descriptor *output_term; + struct uac3_cluster_header_descriptor *cluster; + struct uac3_as_header_descriptor *as = NULL; + struct uac3_hc_descriptor_header hc_header; + struct snd_pcm_chmap_elem *chmap; + struct snd_usb_power_domain *pd; + unsigned char badd_profile; + u64 badd_formats = 0; + unsigned int num_channels; + struct audioformat *fp; + u16 cluster_id, wLength; + int clock = 0; + int err; + + badd_profile = chip->badd_profile; + + if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { + unsigned int maxpacksize = + le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); + + switch (maxpacksize) { + default: + dev_err(&dev->dev, + "%u:%d : incorrect wMaxPacketSize for BADD profile\n", + iface_no, altno); + return NULL; + case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: + badd_formats = SNDRV_PCM_FMTBIT_S16_LE; + num_channels = 1; + break; + case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: + badd_formats = SNDRV_PCM_FMTBIT_S24_3LE; + num_channels = 1; + break; + case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: + badd_formats = SNDRV_PCM_FMTBIT_S16_LE; + num_channels = 2; + break; + case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: + badd_formats = SNDRV_PCM_FMTBIT_S24_3LE; + num_channels = 2; + break; + } + + chmap = kzalloc(sizeof(*chmap), GFP_KERNEL); + if (!chmap) + return ERR_PTR(-ENOMEM); + + if (num_channels == 1) { + chmap->map[0] = SNDRV_CHMAP_MONO; + } else { + chmap->map[0] = SNDRV_CHMAP_FL; + chmap->map[1] = SNDRV_CHMAP_FR; + } + + chmap->channels = num_channels; + clock = UAC3_BADD_CS_ID9; + goto found_clock; + } + + as = snd_usb_find_csint_desc(alts->extra, alts->extralen, + NULL, UAC_AS_GENERAL); + if (!as) { + dev_err(&dev->dev, + "%u:%d : UAC_AS_GENERAL descriptor not found\n", + iface_no, altno); + return NULL; + } + + if (as->bLength < sizeof(*as)) { + dev_err(&dev->dev, + "%u:%d : invalid UAC_AS_GENERAL desc\n", + iface_no, altno); + return NULL; + } + + cluster_id = le16_to_cpu(as->wClusterDescrID); + if (!cluster_id) { + dev_err(&dev->dev, + "%u:%d : no cluster descriptor\n", + iface_no, altno); + return NULL; + } + + /* + * Get number of channels and channel map through + * High Capability Cluster Descriptor + * + * First step: get High Capability header and + * read size of Cluster Descriptor + */ + err = snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), + UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + cluster_id, + snd_usb_ctrl_intf(chip), + &hc_header, sizeof(hc_header)); + if (err < 0) + return ERR_PTR(err); + else if (err != sizeof(hc_header)) { + dev_err(&dev->dev, + "%u:%d : can't get High Capability descriptor\n", + iface_no, altno); + return ERR_PTR(-EIO); + } + + /* + * Second step: allocate needed amount of memory + * and request Cluster Descriptor + */ + wLength = le16_to_cpu(hc_header.wLength); + cluster = kzalloc(wLength, GFP_KERNEL); + if (!cluster) + return ERR_PTR(-ENOMEM); + err = snd_usb_ctl_msg(chip->dev, + usb_rcvctrlpipe(chip->dev, 0), + UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, + USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, + cluster_id, + snd_usb_ctrl_intf(chip), + cluster, wLength); + if (err < 0) { + kfree(cluster); + return ERR_PTR(err); + } else if (err != wLength) { + dev_err(&dev->dev, + "%u:%d : can't get Cluster Descriptor\n", + iface_no, altno); + kfree(cluster); + return ERR_PTR(-EIO); + } + + num_channels = cluster->bNrChannels; + chmap = convert_chmap_v3(cluster); + kfree(cluster); + + /* + * lookup the terminal associated to this interface + * to extract the clock + */ + input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf, + as->bTerminalLink, + UAC_VERSION_3); + if (input_term) { + clock = input_term->bCSourceID; + goto found_clock; + } + + output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf, + as->bTerminalLink, + UAC_VERSION_3); + if (output_term) { + clock = output_term->bCSourceID; + goto found_clock; + } + + dev_err(&dev->dev, "%u:%d : bogus bTerminalLink %d\n", + iface_no, altno, as->bTerminalLink); + kfree(chmap); + return NULL; + +found_clock: + fp = audio_format_alloc_init(chip, alts, UAC_VERSION_3, iface_no, + altset_idx, altno, num_channels, clock); + if (!fp) { + kfree(chmap); + return ERR_PTR(-ENOMEM); + } + + fp->chmap = chmap; + + if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { + fp->attributes = 0; /* No attributes */ + + fp->fmt_type = UAC_FORMAT_TYPE_I; + fp->formats = badd_formats; + + fp->nr_rates = 0; /* SNDRV_PCM_RATE_CONTINUOUS */ + fp->rate_min = UAC3_BADD_SAMPLING_RATE; + fp->rate_max = UAC3_BADD_SAMPLING_RATE; + fp->rates = SNDRV_PCM_RATE_CONTINUOUS; + + pd = kzalloc(sizeof(*pd), GFP_KERNEL); + if (!pd) { + audioformat_free(fp); + return NULL; + } + pd->pd_id = (stream == SNDRV_PCM_STREAM_PLAYBACK) ? + UAC3_BADD_PD_ID10 : UAC3_BADD_PD_ID11; + pd->pd_d1d0_rec = UAC3_BADD_PD_RECOVER_D1D0; + pd->pd_d2d0_rec = UAC3_BADD_PD_RECOVER_D2D0; + + } else { + fp->attributes = parse_uac_endpoint_attributes(chip, alts, + UAC_VERSION_3, + iface_no); + + pd = snd_usb_find_power_domain(chip->ctrl_intf, + as->bTerminalLink); + + /* ok, let's parse further... */ + if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) { + kfree(pd); + audioformat_free(fp); + return NULL; + } + } + + if (pd) + *pd_out = pd; + + return fp; +} + +static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip, + int iface_no, + bool *has_non_pcm, bool non_pcm) +{ + struct usb_device *dev; + struct usb_interface *iface; + struct usb_host_interface *alts; + struct usb_interface_descriptor *altsd; + int i, altno, err, stream; + struct audioformat *fp = NULL; + struct snd_usb_power_domain *pd = NULL; + bool set_iface_first; + int num, protocol; + + dev = chip->dev; + + /* parse the interface's altsettings */ + iface = usb_ifnum_to_if(dev, iface_no); + + num = iface->num_altsetting; + + /* + * Dallas DS4201 workaround: It presents 5 altsettings, but the last + * one misses syncpipe, and does not produce any sound. + */ + if (chip->usb_id == USB_ID(0x04fa, 0x4201) && num >= 4) + num = 4; + + for (i = 0; i < num; i++) { + alts = &iface->altsetting[i]; + altsd = get_iface_desc(alts); + protocol = altsd->bInterfaceProtocol; + /* skip invalid one */ + if (((altsd->bInterfaceClass != USB_CLASS_AUDIO || + (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING && + altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC)) && + altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) || + altsd->bNumEndpoints < 1 || + le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0) + continue; + /* must be isochronous */ + if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != + USB_ENDPOINT_XFER_ISOC) + continue; + /* check direction */ + stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ? + SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; + altno = altsd->bAlternateSetting; + + if (snd_usb_apply_interface_quirk(chip, iface_no, altno)) + continue; + + /* + * Roland audio streaming interfaces are marked with protocols + * 0/1/2, but are UAC 1 compatible. + */ + if (USB_ID_VENDOR(chip->usb_id) == 0x0582 && + altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC && + protocol <= 2) + protocol = UAC_VERSION_1; + + switch (protocol) { + default: + dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n", + iface_no, altno, protocol); + protocol = UAC_VERSION_1; + fallthrough; + case UAC_VERSION_1: + case UAC_VERSION_2: { + int bm_quirk = 0; + + /* + * Blue Microphones workaround: The last altsetting is + * identical with the previous one, except for a larger + * packet size, but is actually a mislabeled two-channel + * setting; ignore it. + * + * Part 1: prepare quirk flag + */ + if (altno == 2 && num == 3 && + fp && fp->altsetting == 1 && fp->channels == 1 && + fp->formats == SNDRV_PCM_FMTBIT_S16_LE && + protocol == UAC_VERSION_1 && + le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == + fp->maxpacksize * 2) + bm_quirk = 1; + + fp = snd_usb_get_audioformat_uac12(chip, alts, protocol, + iface_no, i, altno, + stream, bm_quirk); + break; + } + case UAC_VERSION_3: + fp = snd_usb_get_audioformat_uac3(chip, alts, &pd, + iface_no, i, altno, stream); + break; + } + + if (!fp) + continue; + else if (IS_ERR(fp)) + return PTR_ERR(fp); + + if (fp->fmt_type != UAC_FORMAT_TYPE_I) + *has_non_pcm = true; + if ((fp->fmt_type == UAC_FORMAT_TYPE_I) == non_pcm) { + audioformat_free(fp); + kfree(pd); + fp = NULL; + pd = NULL; + continue; + } + + snd_usb_audioformat_set_sync_ep(chip, fp); + + dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint); + if (protocol == UAC_VERSION_3) + err = snd_usb_add_audio_stream_v3(chip, stream, fp, pd); + else + err = snd_usb_add_audio_stream(chip, stream, fp); + + if (err < 0) { + audioformat_free(fp); + kfree(pd); + return err; + } + + /* add endpoints */ + err = snd_usb_add_endpoint(chip, fp->endpoint, + SND_USB_ENDPOINT_TYPE_DATA); + if (err < 0) + return err; + + if (fp->sync_ep) { + err = snd_usb_add_endpoint(chip, fp->sync_ep, + fp->implicit_fb ? + SND_USB_ENDPOINT_TYPE_DATA : + SND_USB_ENDPOINT_TYPE_SYNC); + if (err < 0) + return err; + } + + set_iface_first = false; + if (protocol == UAC_VERSION_1 || + (chip->quirk_flags & QUIRK_FLAG_SET_IFACE_FIRST)) + set_iface_first = true; + + /* try to set the interface... */ + usb_set_interface(chip->dev, iface_no, 0); + if (set_iface_first) + usb_set_interface(chip->dev, iface_no, altno); + snd_usb_init_pitch(chip, fp); + snd_usb_init_sample_rate(chip, fp, fp->rate_max); + if (!set_iface_first) + usb_set_interface(chip->dev, iface_no, altno); + } + return 0; +} + +int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no) +{ + int err; + bool has_non_pcm = false; + + /* parse PCM formats */ + err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, false); + if (err < 0) + return err; + + if (has_non_pcm) { + /* parse non-PCM formats */ + err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, true); + if (err < 0) + return err; + } + + return 0; +} + diff --git a/sound/usb/stream.h b/sound/usb/stream.h new file mode 100644 index 000000000..d92e18d58 --- /dev/null +++ b/sound/usb/stream.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USBAUDIO_STREAM_H +#define __USBAUDIO_STREAM_H + +int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, + int iface_no); + +int snd_usb_add_audio_stream(struct snd_usb_audio *chip, + int stream, + struct audioformat *fp); + +#endif /* __USBAUDIO_STREAM_H */ + diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h new file mode 100644 index 000000000..f5a8dca66 --- /dev/null +++ b/sound/usb/usbaudio.h @@ -0,0 +1,206 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef __USBAUDIO_H +#define __USBAUDIO_H +/* + * (Tentative) USB Audio Driver for ALSA + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + */ + +/* handling of USB vendor/product ID pairs as 32-bit numbers */ +#define USB_ID(vendor, product) (((unsigned int)(vendor) << 16) | (product)) +#define USB_ID_VENDOR(id) ((id) >> 16) +#define USB_ID_PRODUCT(id) ((u16)(id)) + +/* + * + */ + +struct media_device; +struct media_intf_devnode; + +#define MAX_CARD_INTERFACES 16 + +struct snd_usb_audio { + int index; + struct usb_device *dev; + struct snd_card *card; + struct usb_interface *intf[MAX_CARD_INTERFACES]; + u32 usb_id; + uint16_t quirk_type; + struct mutex mutex; + unsigned int system_suspend; + atomic_t active; + atomic_t shutdown; + atomic_t usage_count; + wait_queue_head_t shutdown_wait; + unsigned int quirk_flags; + unsigned int need_delayed_register:1; /* warn for delayed registration */ + int num_interfaces; + int last_iface; + int num_suspended_intf; + int sample_rate_read_error; + + int badd_profile; /* UAC3 BADD profile */ + + struct list_head pcm_list; /* list of pcm streams */ + struct list_head ep_list; /* list of audio-related endpoints */ + struct list_head iface_ref_list; /* list of interface refcounts */ + struct list_head clock_ref_list; /* list of clock refcounts */ + int pcm_devs; + + struct list_head midi_list; /* list of midi interfaces */ + + struct list_head mixer_list; /* list of mixer interfaces */ + + int setup; /* from the 'device_setup' module param */ + bool generic_implicit_fb; /* from the 'implicit_fb' module param */ + bool autoclock; /* from the 'autoclock' module param */ + + bool lowlatency; /* from the 'lowlatency' module param */ + struct usb_host_interface *ctrl_intf; /* the audio control interface */ + struct media_device *media_dev; + struct media_intf_devnode *ctl_intf_media_devnode; +}; + +#define USB_AUDIO_IFACE_UNUSED ((void *)-1L) + +#define usb_audio_err(chip, fmt, args...) \ + dev_err(&(chip)->dev->dev, fmt, ##args) +#define usb_audio_warn(chip, fmt, args...) \ + dev_warn(&(chip)->dev->dev, fmt, ##args) +#define usb_audio_info(chip, fmt, args...) \ + dev_info(&(chip)->dev->dev, fmt, ##args) +#define usb_audio_dbg(chip, fmt, args...) \ + dev_dbg(&(chip)->dev->dev, fmt, ##args) + +/* + * Information about devices with broken descriptors + */ + +/* special values for .ifnum */ +#define QUIRK_NODEV_INTERFACE -3 /* return -ENODEV */ +#define QUIRK_NO_INTERFACE -2 +#define QUIRK_ANY_INTERFACE -1 + +enum quirk_type { + QUIRK_IGNORE_INTERFACE, + QUIRK_COMPOSITE, + QUIRK_AUTODETECT, + QUIRK_MIDI_STANDARD_INTERFACE, + QUIRK_MIDI_FIXED_ENDPOINT, + QUIRK_MIDI_YAMAHA, + QUIRK_MIDI_ROLAND, + QUIRK_MIDI_MIDIMAN, + QUIRK_MIDI_NOVATION, + QUIRK_MIDI_RAW_BYTES, + QUIRK_MIDI_EMAGIC, + QUIRK_MIDI_CME, + QUIRK_MIDI_AKAI, + QUIRK_MIDI_US122L, + QUIRK_MIDI_FTDI, + QUIRK_MIDI_CH345, + QUIRK_AUDIO_STANDARD_INTERFACE, + QUIRK_AUDIO_FIXED_ENDPOINT, + QUIRK_AUDIO_EDIROL_UAXX, + QUIRK_AUDIO_STANDARD_MIXER, + + QUIRK_TYPE_COUNT +}; + +struct snd_usb_audio_quirk { + const char *vendor_name; + const char *product_name; + int16_t ifnum; + uint16_t type; + const void *data; +}; + +#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8)) +#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) +#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) + +int snd_usb_lock_shutdown(struct snd_usb_audio *chip); +void snd_usb_unlock_shutdown(struct snd_usb_audio *chip); + +extern bool snd_usb_use_vmalloc; +extern bool snd_usb_skip_validation; + +/* + * Driver behavior quirk flags, stored in chip->quirk_flags + * + * QUIRK_FLAG_GET_SAMPLE_RATE: + * Skip reading sample rate for devices, as some devices behave inconsistently + * or return error + * QUIRK_FLAG_SHARE_MEDIA_DEVICE: + * Create Media Controller API entries + * QUIRK_FLAG_ALIGN_TRANSFER: + * Allow alignment on audio sub-slot (channel samples) rather than on audio + * slots (audio frames) + * QUIRK_TX_LENGTH: + * Add length specifier to transfers + * QUIRK_FLAG_PLAYBACK_FIRST: + * Start playback stream at first even in implement feedback mode + * QUIRK_FLAG_SKIP_CLOCK_SELECTOR: + * Skip clock selector setup; the device may reset to invalid state + * QUIRK_FLAG_IGNORE_CLOCK_SOURCE: + * Ignore errors from clock source search; i.e. hardcoded clock + * QUIRK_FLAG_ITF_USB_DSD_DAC: + * Indicates the device is for ITF-USB DSD based DACs that need a vendor cmd + * to switch between PCM and native DSD mode + * QUIRK_FLAG_CTL_MSG_DELAY: + * Add a delay of 20ms at each control message handling + * QUIRK_FLAG_CTL_MSG_DELAY_1M: + * Add a delay of 1-2ms at each control message handling + * QUIRK_FLAG_CTL_MSG_DELAY_5M: + * Add a delay of 5-6ms at each control message handling + * QUIRK_FLAG_IFACE_DELAY: + * Add a delay of 50ms at each interface setup + * QUIRK_FLAG_VALIDATE_RATES: + * Perform sample rate validations at probe + * QUIRK_FLAG_DISABLE_AUTOSUSPEND: + * Disable runtime PM autosuspend + * QUIRK_FLAG_IGNORE_CTL_ERROR: + * Ignore errors for mixer access + * QUIRK_FLAG_DSD_RAW: + * Support generic DSD raw U32_BE format + * QUIRK_FLAG_SET_IFACE_FIRST: + * Set up the interface at first like UAC1 + * QUIRK_FLAG_GENERIC_IMPLICIT_FB + * Apply the generic implicit feedback sync mode (same as implicit_fb=1 option) + * QUIRK_FLAG_SKIP_IMPLICIT_FB + * Don't apply implicit feedback sync mode + * QUIRK_FLAG_IFACE_SKIP_CLOSE + * Don't closed interface during setting sample rate + * QUIRK_FLAG_FORCE_IFACE_RESET + * Force an interface reset whenever stopping & restarting a stream + * (e.g. after xrun) + * QUIRK_FLAG_FIXED_RATE + * Do not set PCM rate (frequency) when only one rate is available + * for the given endpoint. + */ + +#define QUIRK_FLAG_GET_SAMPLE_RATE (1U << 0) +#define QUIRK_FLAG_SHARE_MEDIA_DEVICE (1U << 1) +#define QUIRK_FLAG_ALIGN_TRANSFER (1U << 2) +#define QUIRK_FLAG_TX_LENGTH (1U << 3) +#define QUIRK_FLAG_PLAYBACK_FIRST (1U << 4) +#define QUIRK_FLAG_SKIP_CLOCK_SELECTOR (1U << 5) +#define QUIRK_FLAG_IGNORE_CLOCK_SOURCE (1U << 6) +#define QUIRK_FLAG_ITF_USB_DSD_DAC (1U << 7) +#define QUIRK_FLAG_CTL_MSG_DELAY (1U << 8) +#define QUIRK_FLAG_CTL_MSG_DELAY_1M (1U << 9) +#define QUIRK_FLAG_CTL_MSG_DELAY_5M (1U << 10) +#define QUIRK_FLAG_IFACE_DELAY (1U << 11) +#define QUIRK_FLAG_VALIDATE_RATES (1U << 12) +#define QUIRK_FLAG_DISABLE_AUTOSUSPEND (1U << 13) +#define QUIRK_FLAG_IGNORE_CTL_ERROR (1U << 14) +#define QUIRK_FLAG_DSD_RAW (1U << 15) +#define QUIRK_FLAG_SET_IFACE_FIRST (1U << 16) +#define QUIRK_FLAG_GENERIC_IMPLICIT_FB (1U << 17) +#define QUIRK_FLAG_SKIP_IMPLICIT_FB (1U << 18) +#define QUIRK_FLAG_IFACE_SKIP_CLOSE (1U << 19) +#define QUIRK_FLAG_FORCE_IFACE_RESET (1U << 20) +#define QUIRK_FLAG_FIXED_RATE (1U << 21) + +#endif /* __USBAUDIO_H */ diff --git a/sound/usb/usx2y/Makefile b/sound/usb/usx2y/Makefile new file mode 100644 index 000000000..cc4c2f1ef --- /dev/null +++ b/sound/usb/usx2y/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 +snd-usb-usx2y-objs := usbusx2y.o usX2Yhwdep.o usx2yhwdeppcm.o +snd-usb-us122l-objs := us122l.o + +obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-usx2y.o +obj-$(CONFIG_SND_USB_US122L) += snd-usb-us122l.o diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c new file mode 100644 index 000000000..e558931cc --- /dev/null +++ b/sound/usb/usx2y/us122l.c @@ -0,0 +1,740 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de> + */ + +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/hwdep.h> +#include <sound/pcm.h> +#include <sound/initval.h> +#define MODNAME "US122L" +#include "usb_stream.c" +#include "../usbaudio.h" +#include "../midi.h" +#include "us122l.h" + +MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>"); +MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5"); +MODULE_LICENSE("GPL"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ + /* Enable this card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); + +/* driver_info flags */ +#define US122L_FLAG_US144 BIT(0) + +static int snd_us122l_card_used[SNDRV_CARDS]; + +static int us122l_create_usbmidi(struct snd_card *card) +{ + static const struct snd_usb_midi_endpoint_info quirk_data = { + .out_ep = 4, + .in_ep = 3, + .out_cables = 0x001, + .in_cables = 0x001 + }; + static const struct snd_usb_audio_quirk quirk = { + .vendor_name = "US122L", + .product_name = NAME_ALLCAPS, + .ifnum = 1, + .type = QUIRK_MIDI_US122L, + .data = &quirk_data + }; + struct usb_device *dev = US122L(card)->dev; + struct usb_interface *iface = usb_ifnum_to_if(dev, 1); + + return snd_usbmidi_create(card, iface, + &US122L(card)->midi_list, &quirk); +} + +static int us144_create_usbmidi(struct snd_card *card) +{ + static const struct snd_usb_midi_endpoint_info quirk_data = { + .out_ep = 4, + .in_ep = 3, + .out_cables = 0x001, + .in_cables = 0x001 + }; + static const struct snd_usb_audio_quirk quirk = { + .vendor_name = "US144", + .product_name = NAME_ALLCAPS, + .ifnum = 0, + .type = QUIRK_MIDI_US122L, + .data = &quirk_data + }; + struct usb_device *dev = US122L(card)->dev; + struct usb_interface *iface = usb_ifnum_to_if(dev, 0); + + return snd_usbmidi_create(card, iface, + &US122L(card)->midi_list, &quirk); +} + +static void pt_info_set(struct usb_device *dev, u8 v) +{ + int ret; + + ret = usb_control_msg_send(dev, 0, 'I', + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + v, 0, NULL, 0, 1000, GFP_NOIO); + snd_printdd(KERN_DEBUG "%i\n", ret); +} + +static void usb_stream_hwdep_vm_open(struct vm_area_struct *area) +{ + struct us122l *us122l = area->vm_private_data; + + atomic_inc(&us122l->mmap_count); + snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); +} + +static vm_fault_t usb_stream_hwdep_vm_fault(struct vm_fault *vmf) +{ + unsigned long offset; + struct page *page; + void *vaddr; + struct us122l *us122l = vmf->vma->vm_private_data; + struct usb_stream *s; + + mutex_lock(&us122l->mutex); + s = us122l->sk.s; + if (!s) + goto unlock; + + offset = vmf->pgoff << PAGE_SHIFT; + if (offset < PAGE_ALIGN(s->read_size)) { + vaddr = (char *)s + offset; + } else { + offset -= PAGE_ALIGN(s->read_size); + if (offset >= PAGE_ALIGN(s->write_size)) + goto unlock; + + vaddr = us122l->sk.write_page + offset; + } + page = virt_to_page(vaddr); + + get_page(page); + mutex_unlock(&us122l->mutex); + + vmf->page = page; + + return 0; +unlock: + mutex_unlock(&us122l->mutex); + return VM_FAULT_SIGBUS; +} + +static void usb_stream_hwdep_vm_close(struct vm_area_struct *area) +{ + struct us122l *us122l = area->vm_private_data; + + atomic_dec(&us122l->mmap_count); + snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count)); +} + +static const struct vm_operations_struct usb_stream_hwdep_vm_ops = { + .open = usb_stream_hwdep_vm_open, + .fault = usb_stream_hwdep_vm_fault, + .close = usb_stream_hwdep_vm_close, +}; + +static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file) +{ + struct us122l *us122l = hw->private_data; + struct usb_interface *iface; + + snd_printdd(KERN_DEBUG "%p %p\n", hw, file); + if (hw->used >= 2) + return -EBUSY; + + if (!us122l->first) + us122l->first = file; + + if (us122l->is_us144) { + iface = usb_ifnum_to_if(us122l->dev, 0); + usb_autopm_get_interface(iface); + } + iface = usb_ifnum_to_if(us122l->dev, 1); + usb_autopm_get_interface(iface); + return 0; +} + +static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file) +{ + struct us122l *us122l = hw->private_data; + struct usb_interface *iface; + + snd_printdd(KERN_DEBUG "%p %p\n", hw, file); + + if (us122l->is_us144) { + iface = usb_ifnum_to_if(us122l->dev, 0); + usb_autopm_put_interface(iface); + } + iface = usb_ifnum_to_if(us122l->dev, 1); + usb_autopm_put_interface(iface); + if (us122l->first == file) + us122l->first = NULL; + mutex_lock(&us122l->mutex); + if (us122l->master == file) + us122l->master = us122l->slave; + + us122l->slave = NULL; + mutex_unlock(&us122l->mutex); + return 0; +} + +static int usb_stream_hwdep_mmap(struct snd_hwdep *hw, + struct file *filp, struct vm_area_struct *area) +{ + unsigned long size = area->vm_end - area->vm_start; + struct us122l *us122l = hw->private_data; + unsigned long offset; + struct usb_stream *s; + int err = 0; + bool read; + + offset = area->vm_pgoff << PAGE_SHIFT; + mutex_lock(&us122l->mutex); + s = us122l->sk.s; + read = offset < s->read_size; + if (read && area->vm_flags & VM_WRITE) { + err = -EPERM; + goto out; + } + snd_printdd(KERN_DEBUG "%lu %u\n", size, + read ? s->read_size : s->write_size); + /* if userspace tries to mmap beyond end of our buffer, fail */ + if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) { + snd_printk(KERN_WARNING "%lu > %u\n", size, + read ? s->read_size : s->write_size); + err = -EINVAL; + goto out; + } + + area->vm_ops = &usb_stream_hwdep_vm_ops; + area->vm_flags |= VM_DONTDUMP; + if (!read) + area->vm_flags |= VM_DONTEXPAND; + area->vm_private_data = us122l; + atomic_inc(&us122l->mmap_count); +out: + mutex_unlock(&us122l->mutex); + return err; +} + +static __poll_t usb_stream_hwdep_poll(struct snd_hwdep *hw, + struct file *file, poll_table *wait) +{ + struct us122l *us122l = hw->private_data; + unsigned int *polled; + __poll_t mask; + + poll_wait(file, &us122l->sk.sleep, wait); + + mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM | EPOLLERR; + if (mutex_trylock(&us122l->mutex)) { + struct usb_stream *s = us122l->sk.s; + + if (s && s->state == usb_stream_ready) { + if (us122l->first == file) + polled = &s->periods_polled; + else + polled = &us122l->second_periods_polled; + if (*polled != s->periods_done) { + *polled = s->periods_done; + mask = EPOLLIN | EPOLLOUT | EPOLLWRNORM; + } else { + mask = 0; + } + } + mutex_unlock(&us122l->mutex); + } + return mask; +} + +static void us122l_stop(struct us122l *us122l) +{ + struct list_head *p; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_stop(p); + + usb_stream_stop(&us122l->sk); + usb_stream_free(&us122l->sk); +} + +static int us122l_set_sample_rate(struct usb_device *dev, int rate) +{ + unsigned int ep = 0x81; + unsigned char data[3]; + int err; + + data[0] = rate; + data[1] = rate >> 8; + data[2] = rate >> 16; + err = usb_control_msg_send(dev, 0, UAC_SET_CUR, + USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT, + UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, + 1000, GFP_NOIO); + if (err) + snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n", + dev->devnum, rate, ep); + return err; +} + +static bool us122l_start(struct us122l *us122l, + unsigned int rate, unsigned int period_frames) +{ + struct list_head *p; + int err; + unsigned int use_packsize = 0; + bool success = false; + + if (us122l->dev->speed == USB_SPEED_HIGH) { + /* The us-122l's descriptor defaults to iso max_packsize 78, + which isn't needed for samplerates <= 48000. + Lets save some memory: + */ + switch (rate) { + case 44100: + use_packsize = 36; + break; + case 48000: + use_packsize = 42; + break; + case 88200: + use_packsize = 72; + break; + } + } + if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2, + rate, use_packsize, period_frames, 6)) + goto out; + + err = us122l_set_sample_rate(us122l->dev, rate); + if (err < 0) { + us122l_stop(us122l); + snd_printk(KERN_ERR "us122l_set_sample_rate error\n"); + goto out; + } + err = usb_stream_start(&us122l->sk); + if (err < 0) { + us122l_stop(us122l); + snd_printk(KERN_ERR "%s error %i\n", __func__, err); + goto out; + } + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_start(p); + success = true; +out: + return success; +} + +static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct usb_stream_config cfg; + struct us122l *us122l = hw->private_data; + struct usb_stream *s; + unsigned int min_period_frames; + int err = 0; + bool high_speed; + + if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS) + return -ENOTTY; + + if (copy_from_user(&cfg, (void __user *)arg, sizeof(cfg))) + return -EFAULT; + + if (cfg.version != USB_STREAM_INTERFACE_VERSION) + return -ENXIO; + + high_speed = us122l->dev->speed == USB_SPEED_HIGH; + if ((cfg.sample_rate != 44100 && cfg.sample_rate != 48000 && + (!high_speed || + (cfg.sample_rate != 88200 && cfg.sample_rate != 96000))) || + cfg.frame_size != 6 || + cfg.period_frames > 0x3000) + return -EINVAL; + + switch (cfg.sample_rate) { + case 44100: + min_period_frames = 48; + break; + case 48000: + min_period_frames = 52; + break; + default: + min_period_frames = 104; + break; + } + if (!high_speed) + min_period_frames <<= 1; + if (cfg.period_frames < min_period_frames) + return -EINVAL; + + snd_power_wait(hw->card); + + mutex_lock(&us122l->mutex); + s = us122l->sk.s; + if (!us122l->master) { + us122l->master = file; + } else if (us122l->master != file) { + if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg))) { + err = -EIO; + goto unlock; + } + us122l->slave = file; + } + if (!s || memcmp(&cfg, &s->cfg, sizeof(cfg)) || + s->state == usb_stream_xrun) { + us122l_stop(us122l); + if (!us122l_start(us122l, cfg.sample_rate, cfg.period_frames)) + err = -EIO; + else + err = 1; + } +unlock: + mutex_unlock(&us122l->mutex); + wake_up_all(&us122l->sk.sleep); + return err; +} + +#define SND_USB_STREAM_ID "USB STREAM" +static int usb_stream_hwdep_new(struct snd_card *card) +{ + int err; + struct snd_hwdep *hw; + struct usb_device *dev = US122L(card)->dev; + + err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw); + if (err < 0) + return err; + + hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM; + hw->private_data = US122L(card); + hw->ops.open = usb_stream_hwdep_open; + hw->ops.release = usb_stream_hwdep_release; + hw->ops.ioctl = usb_stream_hwdep_ioctl; + hw->ops.ioctl_compat = usb_stream_hwdep_ioctl; + hw->ops.mmap = usb_stream_hwdep_mmap; + hw->ops.poll = usb_stream_hwdep_poll; + + sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm", + dev->bus->busnum, dev->devnum); + return 0; +} + +static bool us122l_create_card(struct snd_card *card) +{ + int err; + struct us122l *us122l = US122L(card); + + if (us122l->is_us144) { + err = usb_set_interface(us122l->dev, 0, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + return false; + } + } + err = usb_set_interface(us122l->dev, 1, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + return false; + } + + pt_info_set(us122l->dev, 0x11); + pt_info_set(us122l->dev, 0x10); + + if (!us122l_start(us122l, 44100, 256)) + return false; + + if (us122l->is_us144) + err = us144_create_usbmidi(card); + else + err = us122l_create_usbmidi(card); + if (err < 0) { + snd_printk(KERN_ERR "us122l_create_usbmidi error %i\n", err); + goto stop; + } + err = usb_stream_hwdep_new(card); + if (err < 0) { + /* release the midi resources */ + struct list_head *p; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_disconnect(p); + + goto stop; + } + return true; + +stop: + us122l_stop(us122l); + return false; +} + +static void snd_us122l_free(struct snd_card *card) +{ + struct us122l *us122l = US122L(card); + int index = us122l->card_index; + + if (index >= 0 && index < SNDRV_CARDS) + snd_us122l_card_used[index] = 0; +} + +static int usx2y_create_card(struct usb_device *device, + struct usb_interface *intf, + struct snd_card **cardp, + unsigned long flags) +{ + int dev; + struct snd_card *card; + int err; + + for (dev = 0; dev < SNDRV_CARDS; ++dev) + if (enable[dev] && !snd_us122l_card_used[dev]) + break; + if (dev >= SNDRV_CARDS) + return -ENODEV; + err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE, + sizeof(struct us122l), &card); + if (err < 0) + return err; + snd_us122l_card_used[US122L(card)->card_index = dev] = 1; + card->private_free = snd_us122l_free; + US122L(card)->dev = device; + mutex_init(&US122L(card)->mutex); + init_waitqueue_head(&US122L(card)->sk.sleep); + US122L(card)->is_us144 = flags & US122L_FLAG_US144; + INIT_LIST_HEAD(&US122L(card)->midi_list); + strcpy(card->driver, "USB "NAME_ALLCAPS""); + sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); + sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", + card->shortname, + le16_to_cpu(device->descriptor.idVendor), + le16_to_cpu(device->descriptor.idProduct), + 0, + US122L(card)->dev->bus->busnum, + US122L(card)->dev->devnum + ); + *cardp = card; + return 0; +} + +static int us122l_usb_probe(struct usb_interface *intf, + const struct usb_device_id *device_id, + struct snd_card **cardp) +{ + struct usb_device *device = interface_to_usbdev(intf); + struct snd_card *card; + int err; + + err = usx2y_create_card(device, intf, &card, device_id->driver_info); + if (err < 0) + return err; + + if (!us122l_create_card(card)) { + snd_card_free(card); + return -EINVAL; + } + + err = snd_card_register(card); + if (err < 0) { + snd_card_free(card); + return err; + } + + usb_get_intf(usb_ifnum_to_if(device, 0)); + usb_get_dev(device); + *cardp = card; + return 0; +} + +static int snd_us122l_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *device = interface_to_usbdev(intf); + struct snd_card *card; + int err; + + if (id->driver_info & US122L_FLAG_US144 && + device->speed == USB_SPEED_HIGH) { + snd_printk(KERN_ERR "disable ehci-hcd to run US-144\n"); + return -ENODEV; + } + + snd_printdd(KERN_DEBUG"%p:%i\n", + intf, intf->cur_altsetting->desc.bInterfaceNumber); + if (intf->cur_altsetting->desc.bInterfaceNumber != 1) + return 0; + + err = us122l_usb_probe(usb_get_intf(intf), id, &card); + if (err < 0) { + usb_put_intf(intf); + return err; + } + + usb_set_intfdata(intf, card); + return 0; +} + +static void snd_us122l_disconnect(struct usb_interface *intf) +{ + struct snd_card *card; + struct us122l *us122l; + struct list_head *p; + + card = usb_get_intfdata(intf); + if (!card) + return; + + snd_card_disconnect(card); + + us122l = US122L(card); + mutex_lock(&us122l->mutex); + us122l_stop(us122l); + mutex_unlock(&us122l->mutex); + + /* release the midi resources */ + list_for_each(p, &us122l->midi_list) { + snd_usbmidi_disconnect(p); + } + + usb_put_intf(usb_ifnum_to_if(us122l->dev, 0)); + usb_put_intf(usb_ifnum_to_if(us122l->dev, 1)); + usb_put_dev(us122l->dev); + + while (atomic_read(&us122l->mmap_count)) + msleep(500); + + snd_card_free(card); +} + +static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message) +{ + struct snd_card *card; + struct us122l *us122l; + struct list_head *p; + + card = usb_get_intfdata(intf); + if (!card) + return 0; + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + + us122l = US122L(card); + if (!us122l) + return 0; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_stop(p); + + mutex_lock(&us122l->mutex); + usb_stream_stop(&us122l->sk); + mutex_unlock(&us122l->mutex); + + return 0; +} + +static int snd_us122l_resume(struct usb_interface *intf) +{ + struct snd_card *card; + struct us122l *us122l; + struct list_head *p; + int err; + + card = usb_get_intfdata(intf); + if (!card) + return 0; + + us122l = US122L(card); + if (!us122l) + return 0; + + mutex_lock(&us122l->mutex); + /* needed, doesn't restart without: */ + if (us122l->is_us144) { + err = usb_set_interface(us122l->dev, 0, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + goto unlock; + } + } + err = usb_set_interface(us122l->dev, 1, 1); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + goto unlock; + } + + pt_info_set(us122l->dev, 0x11); + pt_info_set(us122l->dev, 0x10); + + err = us122l_set_sample_rate(us122l->dev, + us122l->sk.s->cfg.sample_rate); + if (err < 0) { + snd_printk(KERN_ERR "us122l_set_sample_rate error\n"); + goto unlock; + } + err = usb_stream_start(&us122l->sk); + if (err) + goto unlock; + + list_for_each(p, &us122l->midi_list) + snd_usbmidi_input_start(p); +unlock: + mutex_unlock(&us122l->mutex); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + return err; +} + +static const struct usb_device_id snd_us122l_usb_id_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US122L + }, + { /* US-144 only works at USB1.1! Disable module ehci-hcd. */ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US144, + .driver_info = US122L_FLAG_US144 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US122MKII + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x0644, + .idProduct = USB_ID_US144MKII, + .driver_info = US122L_FLAG_US144 + }, + { /* terminator */ } +}; +MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table); + +static struct usb_driver snd_us122l_usb_driver = { + .name = "snd-usb-us122l", + .probe = snd_us122l_probe, + .disconnect = snd_us122l_disconnect, + .suspend = snd_us122l_suspend, + .resume = snd_us122l_resume, + .reset_resume = snd_us122l_resume, + .id_table = snd_us122l_usb_id_table, + .supports_autosuspend = 1 +}; + +module_usb_driver(snd_us122l_usb_driver); diff --git a/sound/usb/usx2y/us122l.h b/sound/usb/usx2y/us122l.h new file mode 100644 index 000000000..c32ae5e98 --- /dev/null +++ b/sound/usb/usx2y/us122l.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef US122L_H +#define US122L_H + + +struct us122l { + struct usb_device *dev; + int card_index; + int stride; + struct usb_stream_kernel sk; + + struct mutex mutex; + struct file *first; + unsigned int second_periods_polled; + struct file *master; + struct file *slave; + struct list_head midi_list; + + atomic_t mmap_count; + + bool is_us144; +}; + + +#define US122L(c) ((struct us122l *)(c)->private_data) + +#define NAME_ALLCAPS "US-122L" + +#define USB_ID_US122L 0x800E +#define USB_ID_US144 0x800F +#define USB_ID_US122MKII 0x8021 +#define USB_ID_US144MKII 0x8020 + +#endif diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c new file mode 100644 index 000000000..c29da0341 --- /dev/null +++ b/sound/usb/usx2y/usX2Yhwdep.c @@ -0,0 +1,249 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Tascam US-X2Y USB soundcards + * + * FPGA Loader + ALSA Startup + * + * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de> + */ + +#include <linux/interrupt.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <sound/core.h> +#include <sound/memalloc.h> +#include <sound/pcm.h> +#include <sound/hwdep.h> +#include "usx2y.h" +#include "usbusx2y.h" +#include "usX2Yhwdep.h" + +static vm_fault_t snd_us428ctls_vm_fault(struct vm_fault *vmf) +{ + unsigned long offset; + struct page *page; + void *vaddr; + + snd_printdd("ENTER, start %lXh, pgoff %ld\n", + vmf->vma->vm_start, + vmf->pgoff); + + offset = vmf->pgoff << PAGE_SHIFT; + vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset; + page = virt_to_page(vaddr); + get_page(page); + vmf->page = page; + + snd_printdd("vaddr=%p made us428ctls_vm_fault() page %p\n", + vaddr, page); + + return 0; +} + +static const struct vm_operations_struct us428ctls_vm_ops = { + .fault = snd_us428ctls_vm_fault, +}; + +static int snd_us428ctls_mmap(struct snd_hwdep *hw, struct file *filp, struct vm_area_struct *area) +{ + unsigned long size = (unsigned long)(area->vm_end - area->vm_start); + struct usx2ydev *us428 = hw->private_data; + + // FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs? + // so as long as the device isn't fully initialised yet we return -EBUSY here. + if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT)) + return -EBUSY; + + /* if userspace tries to mmap beyond end of our buffer, fail */ + if (size > US428_SHAREDMEM_PAGES) { + snd_printd("%lu > %lu\n", size, (unsigned long)US428_SHAREDMEM_PAGES); + return -EINVAL; + } + + area->vm_ops = &us428ctls_vm_ops; + area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + area->vm_private_data = hw->private_data; + return 0; +} + +static __poll_t snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait) +{ + __poll_t mask = 0; + struct usx2ydev *us428 = hw->private_data; + struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem; + + if (us428->chip_status & USX2Y_STAT_CHIP_HUP) + return EPOLLHUP; + + poll_wait(file, &us428->us428ctls_wait_queue_head, wait); + + if (shm && shm->ctl_snapshot_last != shm->ctl_snapshot_red) + mask |= EPOLLIN; + + return mask; +} + + +static int snd_usx2y_hwdep_dsp_status(struct snd_hwdep *hw, + struct snd_hwdep_dsp_status *info) +{ + static const char * const type_ids[USX2Y_TYPE_NUMS] = { + [USX2Y_TYPE_122] = "us122", + [USX2Y_TYPE_224] = "us224", + [USX2Y_TYPE_428] = "us428", + }; + struct usx2ydev *us428 = hw->private_data; + int id = -1; + + switch (le16_to_cpu(us428->dev->descriptor.idProduct)) { + case USB_ID_US122: + id = USX2Y_TYPE_122; + break; + case USB_ID_US224: + id = USX2Y_TYPE_224; + break; + case USB_ID_US428: + id = USX2Y_TYPE_428; + break; + } + if (id < 0) + return -ENODEV; + strcpy(info->id, type_ids[id]); + info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code + if (us428->chip_status & USX2Y_STAT_CHIP_INIT) + info->chip_ready = 1; + info->version = USX2Y_DRIVER_VERSION; + return 0; +} + +static int usx2y_create_usbmidi(struct snd_card *card) +{ + static const struct snd_usb_midi_endpoint_info quirk_data_1 = { + .out_ep = 0x06, + .in_ep = 0x06, + .out_cables = 0x001, + .in_cables = 0x001 + }; + static const struct snd_usb_audio_quirk quirk_1 = { + .vendor_name = "TASCAM", + .product_name = NAME_ALLCAPS, + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &quirk_data_1 + }; + static const struct snd_usb_midi_endpoint_info quirk_data_2 = { + .out_ep = 0x06, + .in_ep = 0x06, + .out_cables = 0x003, + .in_cables = 0x003 + }; + static const struct snd_usb_audio_quirk quirk_2 = { + .vendor_name = "TASCAM", + .product_name = "US428", + .ifnum = 0, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &quirk_data_2 + }; + struct usb_device *dev = usx2y(card)->dev; + struct usb_interface *iface = usb_ifnum_to_if(dev, 0); + const struct snd_usb_audio_quirk *quirk = + le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ? + &quirk_2 : &quirk_1; + + snd_printdd("%s\n", __func__); + return snd_usbmidi_create(card, iface, &usx2y(card)->midi_list, quirk); +} + +static int usx2y_create_alsa_devices(struct snd_card *card) +{ + int err; + + err = usx2y_create_usbmidi(card); + if (err < 0) { + snd_printk(KERN_ERR "%s: usx2y_create_usbmidi error %i\n", __func__, err); + return err; + } + err = usx2y_audio_create(card); + if (err < 0) + return err; + err = usx2y_hwdep_pcm_new(card); + if (err < 0) + return err; + err = snd_card_register(card); + if (err < 0) + return err; + return 0; +} + +static int snd_usx2y_hwdep_dsp_load(struct snd_hwdep *hw, + struct snd_hwdep_dsp_image *dsp) +{ + struct usx2ydev *priv = hw->private_data; + struct usb_device *dev = priv->dev; + int lret, err; + char *buf; + + snd_printdd("dsp_load %s\n", dsp->name); + + buf = memdup_user(dsp->image, dsp->length); + if (IS_ERR(buf)) + return PTR_ERR(buf); + + err = usb_set_interface(dev, 0, 1); + if (err) + snd_printk(KERN_ERR "usb_set_interface error\n"); + else + err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000); + kfree(buf); + if (err) + return err; + if (dsp->index == 1) { + msleep(250); // give the device some time + err = usx2y_async_seq04_init(priv); + if (err) { + snd_printk(KERN_ERR "usx2y_async_seq04_init error\n"); + return err; + } + err = usx2y_in04_init(priv); + if (err) { + snd_printk(KERN_ERR "usx2y_in04_init error\n"); + return err; + } + err = usx2y_create_alsa_devices(hw->card); + if (err) { + snd_printk(KERN_ERR "usx2y_create_alsa_devices error %i\n", err); + return err; + } + priv->chip_status |= USX2Y_STAT_CHIP_INIT; + snd_printdd("%s: alsa all started\n", hw->name); + } + return err; +} + +int usx2y_hwdep_new(struct snd_card *card, struct usb_device *device) +{ + int err; + struct snd_hwdep *hw; + struct usx2ydev *us428 = usx2y(card); + + err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw); + if (err < 0) + return err; + + hw->iface = SNDRV_HWDEP_IFACE_USX2Y; + hw->private_data = us428; + hw->ops.dsp_status = snd_usx2y_hwdep_dsp_status; + hw->ops.dsp_load = snd_usx2y_hwdep_dsp_load; + hw->ops.mmap = snd_us428ctls_mmap; + hw->ops.poll = snd_us428ctls_poll; + hw->exclusive = 1; + sprintf(hw->name, "/dev/bus/usb/%03d/%03d", device->bus->busnum, device->devnum); + + us428->us428ctls_sharedmem = alloc_pages_exact(US428_SHAREDMEM_PAGES, GFP_KERNEL); + if (!us428->us428ctls_sharedmem) + return -ENOMEM; + memset(us428->us428ctls_sharedmem, -1, US428_SHAREDMEM_PAGES); + us428->us428ctls_sharedmem->ctl_snapshot_last = -2; + + return 0; +} diff --git a/sound/usb/usx2y/usX2Yhwdep.h b/sound/usb/usx2y/usX2Yhwdep.h new file mode 100644 index 000000000..0c9946d9c --- /dev/null +++ b/sound/usb/usx2y/usX2Yhwdep.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef USX2YHWDEP_H +#define USX2YHWDEP_H + +int usx2y_hwdep_new(struct snd_card *card, struct usb_device *device); + +#endif diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c new file mode 100644 index 000000000..a4d32e8a1 --- /dev/null +++ b/sound/usb/usx2y/usb_stream.c @@ -0,0 +1,782 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de> + */ + +#include <linux/usb.h> +#include <linux/gfp.h> + +#include "usb_stream.h" + +/* setup */ + +static unsigned int usb_stream_next_packet_size(struct usb_stream_kernel *sk) +{ + struct usb_stream *s = sk->s; + + sk->out_phase_peeked = (sk->out_phase & 0xffff) + sk->freqn; + return (sk->out_phase_peeked >> 16) * s->cfg.frame_size; +} + +static void playback_prep_freqn(struct usb_stream_kernel *sk, struct urb *urb) +{ + struct usb_stream *s = sk->s; + int pack, lb = 0; + + for (pack = 0; pack < sk->n_o_ps; pack++) { + int l = usb_stream_next_packet_size(sk); + + if (s->idle_outsize + lb + l > s->period_size) + goto check; + + sk->out_phase = sk->out_phase_peeked; + urb->iso_frame_desc[pack].offset = lb; + urb->iso_frame_desc[pack].length = l; + lb += l; + } + snd_printdd(KERN_DEBUG "%i\n", lb); + +check: + urb->number_of_packets = pack; + urb->transfer_buffer_length = lb; + s->idle_outsize += lb - s->period_size; + snd_printdd(KERN_DEBUG "idle=%i ul=%i ps=%i\n", s->idle_outsize, + lb, s->period_size); +} + +static int init_pipe_urbs(struct usb_stream_kernel *sk, + unsigned int use_packsize, + struct urb **urbs, char *transfer, + struct usb_device *dev, int pipe) +{ + int u, p; + int maxpacket = use_packsize ? + use_packsize : usb_maxpacket(dev, pipe); + int transfer_length = maxpacket * sk->n_o_ps; + + for (u = 0; u < USB_STREAM_NURBS; + ++u, transfer += transfer_length) { + struct urb *urb = urbs[u]; + struct usb_iso_packet_descriptor *desc; + + urb->transfer_buffer = transfer; + urb->dev = dev; + urb->pipe = pipe; + urb->number_of_packets = sk->n_o_ps; + urb->context = sk; + urb->interval = 1; + if (usb_pipeout(pipe)) + continue; + if (usb_urb_ep_type_check(urb)) + return -EINVAL; + + urb->transfer_buffer_length = transfer_length; + desc = urb->iso_frame_desc; + desc->offset = 0; + desc->length = maxpacket; + for (p = 1; p < sk->n_o_ps; ++p) { + desc[p].offset = desc[p - 1].offset + maxpacket; + desc[p].length = maxpacket; + } + } + + return 0; +} + +static int init_urbs(struct usb_stream_kernel *sk, unsigned int use_packsize, + struct usb_device *dev, int in_pipe, int out_pipe) +{ + struct usb_stream *s = sk->s; + char *indata = + (char *)s + sizeof(*s) + sizeof(struct usb_stream_packet) * s->inpackets; + int u; + + for (u = 0; u < USB_STREAM_NURBS; ++u) { + sk->inurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL); + if (!sk->inurb[u]) + return -ENOMEM; + + sk->outurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL); + if (!sk->outurb[u]) + return -ENOMEM; + } + + if (init_pipe_urbs(sk, use_packsize, sk->inurb, indata, dev, in_pipe) || + init_pipe_urbs(sk, use_packsize, sk->outurb, sk->write_page, dev, + out_pipe)) + return -EINVAL; + + return 0; +} + +/* + * convert a sampling rate into our full speed format (fs/1000 in Q16.16) + * this will overflow at approx 524 kHz + */ +static inline unsigned int get_usb_full_speed_rate(unsigned int rate) +{ + return ((rate << 13) + 62) / 125; +} + +/* + * convert a sampling rate into USB high speed format (fs/8000 in Q16.16) + * this will overflow at approx 4 MHz + */ +static inline unsigned int get_usb_high_speed_rate(unsigned int rate) +{ + return ((rate << 10) + 62) / 125; +} + +void usb_stream_free(struct usb_stream_kernel *sk) +{ + struct usb_stream *s; + unsigned int u; + + for (u = 0; u < USB_STREAM_NURBS; ++u) { + usb_free_urb(sk->inurb[u]); + sk->inurb[u] = NULL; + usb_free_urb(sk->outurb[u]); + sk->outurb[u] = NULL; + } + + s = sk->s; + if (!s) + return; + + if (sk->write_page) { + free_pages_exact(sk->write_page, s->write_size); + sk->write_page = NULL; + } + + free_pages_exact(s, s->read_size); + sk->s = NULL; +} + +struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk, + struct usb_device *dev, + unsigned int in_endpoint, + unsigned int out_endpoint, + unsigned int sample_rate, + unsigned int use_packsize, + unsigned int period_frames, + unsigned int frame_size) +{ + int packets, max_packsize; + int in_pipe, out_pipe; + int read_size = sizeof(struct usb_stream); + int write_size; + int usb_frames = dev->speed == USB_SPEED_HIGH ? 8000 : 1000; + + in_pipe = usb_rcvisocpipe(dev, in_endpoint); + out_pipe = usb_sndisocpipe(dev, out_endpoint); + + max_packsize = use_packsize ? + use_packsize : usb_maxpacket(dev, in_pipe); + + /* + t_period = period_frames / sample_rate + iso_packs = t_period / t_iso_frame + = (period_frames / sample_rate) * (1 / t_iso_frame) + */ + + packets = period_frames * usb_frames / sample_rate + 1; + + if (dev->speed == USB_SPEED_HIGH) + packets = (packets + 7) & ~7; + + read_size += packets * USB_STREAM_URBDEPTH * + (max_packsize + sizeof(struct usb_stream_packet)); + + max_packsize = usb_maxpacket(dev, out_pipe); + write_size = max_packsize * packets * USB_STREAM_URBDEPTH; + + if (read_size >= 256*PAGE_SIZE || write_size >= 256*PAGE_SIZE) { + snd_printk(KERN_WARNING "a size exceeds 128*PAGE_SIZE\n"); + goto out; + } + + sk->s = alloc_pages_exact(read_size, + GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN); + if (!sk->s) { + pr_warn("us122l: couldn't allocate read buffer\n"); + goto out; + } + sk->s->cfg.version = USB_STREAM_INTERFACE_VERSION; + + sk->s->read_size = read_size; + + sk->s->cfg.sample_rate = sample_rate; + sk->s->cfg.frame_size = frame_size; + sk->n_o_ps = packets; + sk->s->inpackets = packets * USB_STREAM_URBDEPTH; + sk->s->cfg.period_frames = period_frames; + sk->s->period_size = frame_size * period_frames; + + sk->s->write_size = write_size; + + sk->write_page = alloc_pages_exact(write_size, + GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN); + if (!sk->write_page) { + pr_warn("us122l: couldn't allocate write buffer\n"); + usb_stream_free(sk); + return NULL; + } + + /* calculate the frequency in 16.16 format */ + if (dev->speed == USB_SPEED_FULL) + sk->freqn = get_usb_full_speed_rate(sample_rate); + else + sk->freqn = get_usb_high_speed_rate(sample_rate); + + if (init_urbs(sk, use_packsize, dev, in_pipe, out_pipe) < 0) { + usb_stream_free(sk); + return NULL; + } + + sk->s->state = usb_stream_stopped; +out: + return sk->s; +} + +/* start */ + +static bool balance_check(struct usb_stream_kernel *sk, struct urb *urb) +{ + bool r; + + if (unlikely(urb->status)) { + if (urb->status != -ESHUTDOWN && urb->status != -ENOENT) + snd_printk(KERN_WARNING "status=%i\n", urb->status); + sk->iso_frame_balance = 0x7FFFFFFF; + return false; + } + r = sk->iso_frame_balance == 0; + if (!r) + sk->i_urb = urb; + return r; +} + +static bool balance_playback(struct usb_stream_kernel *sk, struct urb *urb) +{ + sk->iso_frame_balance += urb->number_of_packets; + return balance_check(sk, urb); +} + +static bool balance_capture(struct usb_stream_kernel *sk, struct urb *urb) +{ + sk->iso_frame_balance -= urb->number_of_packets; + return balance_check(sk, urb); +} + +static void subs_set_complete(struct urb **urbs, void (*complete)(struct urb *)) +{ + int u; + + for (u = 0; u < USB_STREAM_NURBS; u++) { + struct urb *urb = urbs[u]; + + urb->complete = complete; + } +} + +static int usb_stream_prepare_playback(struct usb_stream_kernel *sk, + struct urb *inurb) +{ + struct usb_stream *s = sk->s; + struct urb *io; + struct usb_iso_packet_descriptor *id, *od; + int p = 0, lb = 0, l = 0; + + io = sk->idle_outurb; + od = io->iso_frame_desc; + + for (; s->sync_packet < 0; ++p, ++s->sync_packet) { + struct urb *ii = sk->completed_inurb; + + id = ii->iso_frame_desc + + ii->number_of_packets + s->sync_packet; + l = id->actual_length; + + od[p].length = l; + od[p].offset = lb; + lb += l; + } + + for (; + s->sync_packet < inurb->number_of_packets && p < sk->n_o_ps; + ++p, ++s->sync_packet) { + l = inurb->iso_frame_desc[s->sync_packet].actual_length; + + if (s->idle_outsize + lb + l > s->period_size) + goto check_ok; + + od[p].length = l; + od[p].offset = lb; + lb += l; + } + +check_ok: + s->sync_packet -= inurb->number_of_packets; + if (unlikely(s->sync_packet < -2 || s->sync_packet > 0)) { + snd_printk(KERN_WARNING "invalid sync_packet = %i;" + " p=%i nop=%i %i %x %x %x > %x\n", + s->sync_packet, p, inurb->number_of_packets, + s->idle_outsize + lb + l, + s->idle_outsize, lb, l, + s->period_size); + return -1; + } + if (unlikely(lb % s->cfg.frame_size)) { + snd_printk(KERN_WARNING"invalid outsize = %i\n", + lb); + return -1; + } + s->idle_outsize += lb - s->period_size; + io->number_of_packets = p; + io->transfer_buffer_length = lb; + if (s->idle_outsize <= 0) + return 0; + + snd_printk(KERN_WARNING "idle=%i\n", s->idle_outsize); + return -1; +} + +static void prepare_inurb(int number_of_packets, struct urb *iu) +{ + struct usb_iso_packet_descriptor *id; + int p; + + iu->number_of_packets = number_of_packets; + id = iu->iso_frame_desc; + id->offset = 0; + for (p = 0; p < iu->number_of_packets - 1; ++p) + id[p + 1].offset = id[p].offset + id[p].length; + + iu->transfer_buffer_length = + id[0].length * iu->number_of_packets; +} + +static int submit_urbs(struct usb_stream_kernel *sk, + struct urb *inurb, struct urb *outurb) +{ + int err; + + prepare_inurb(sk->idle_outurb->number_of_packets, sk->idle_inurb); + err = usb_submit_urb(sk->idle_inurb, GFP_ATOMIC); + if (err < 0) + goto report_failure; + + sk->idle_inurb = sk->completed_inurb; + sk->completed_inurb = inurb; + err = usb_submit_urb(sk->idle_outurb, GFP_ATOMIC); + if (err < 0) + goto report_failure; + + sk->idle_outurb = sk->completed_outurb; + sk->completed_outurb = outurb; + return 0; + +report_failure: + snd_printk(KERN_ERR "%i\n", err); + return err; +} + +#ifdef DEBUG_LOOP_BACK +/* + This loop_back() shows how to read/write the period data. + */ +static void loop_back(struct usb_stream *s) +{ + char *i, *o; + int il, ol, l, p; + struct urb *iu; + struct usb_iso_packet_descriptor *id; + + o = s->playback1st_to; + ol = s->playback1st_size; + l = 0; + + if (s->insplit_pack >= 0) { + iu = sk->idle_inurb; + id = iu->iso_frame_desc; + p = s->insplit_pack; + } else + goto second; +loop: + for (; p < iu->number_of_packets && l < s->period_size; ++p) { + i = iu->transfer_buffer + id[p].offset; + il = id[p].actual_length; + if (l + il > s->period_size) + il = s->period_size - l; + if (il <= ol) { + memcpy(o, i, il); + o += il; + ol -= il; + } else { + memcpy(o, i, ol); + singen_6pack(o, ol); + o = s->playback_to; + memcpy(o, i + ol, il - ol); + o += il - ol; + ol = s->period_size - s->playback1st_size; + } + l += il; + } + if (iu == sk->completed_inurb) { + if (l != s->period_size) + printk(KERN_DEBUG"%s:%i %i\n", __func__, __LINE__, + l/(int)s->cfg.frame_size); + + return; + } +second: + iu = sk->completed_inurb; + id = iu->iso_frame_desc; + p = 0; + goto loop; + +} +#else +static void loop_back(struct usb_stream *s) +{ +} +#endif + +static void stream_idle(struct usb_stream_kernel *sk, + struct urb *inurb, struct urb *outurb) +{ + struct usb_stream *s = sk->s; + int l, p; + int insize = s->idle_insize; + int urb_size = 0; + + s->inpacket_split = s->next_inpacket_split; + s->inpacket_split_at = s->next_inpacket_split_at; + s->next_inpacket_split = -1; + s->next_inpacket_split_at = 0; + + for (p = 0; p < inurb->number_of_packets; ++p) { + struct usb_iso_packet_descriptor *id = inurb->iso_frame_desc; + + l = id[p].actual_length; + if (unlikely(l == 0 || id[p].status)) { + snd_printk(KERN_WARNING "underrun, status=%u\n", + id[p].status); + goto err_out; + } + s->inpacket_head++; + s->inpacket_head %= s->inpackets; + if (s->inpacket_split == -1) + s->inpacket_split = s->inpacket_head; + + s->inpacket[s->inpacket_head].offset = + id[p].offset + (inurb->transfer_buffer - (void *)s); + s->inpacket[s->inpacket_head].length = l; + if (insize + l > s->period_size && + s->next_inpacket_split == -1) { + s->next_inpacket_split = s->inpacket_head; + s->next_inpacket_split_at = s->period_size - insize; + } + insize += l; + urb_size += l; + } + s->idle_insize += urb_size - s->period_size; + if (s->idle_insize < 0) { + snd_printk(KERN_WARNING "%i\n", + (s->idle_insize)/(int)s->cfg.frame_size); + goto err_out; + } + s->insize_done += urb_size; + + l = s->idle_outsize; + s->outpacket[0].offset = (sk->idle_outurb->transfer_buffer - + sk->write_page) - l; + + if (usb_stream_prepare_playback(sk, inurb) < 0) + goto err_out; + + s->outpacket[0].length = sk->idle_outurb->transfer_buffer_length + l; + s->outpacket[1].offset = sk->completed_outurb->transfer_buffer - + sk->write_page; + + if (submit_urbs(sk, inurb, outurb) < 0) + goto err_out; + + loop_back(s); + s->periods_done++; + wake_up_all(&sk->sleep); + return; +err_out: + s->state = usb_stream_xrun; + wake_up_all(&sk->sleep); +} + +static void i_capture_idle(struct urb *urb) +{ + struct usb_stream_kernel *sk = urb->context; + + if (balance_capture(sk, urb)) + stream_idle(sk, urb, sk->i_urb); +} + +static void i_playback_idle(struct urb *urb) +{ + struct usb_stream_kernel *sk = urb->context; + + if (balance_playback(sk, urb)) + stream_idle(sk, sk->i_urb, urb); +} + +static void stream_start(struct usb_stream_kernel *sk, + struct urb *inurb, struct urb *outurb) +{ + struct usb_stream *s = sk->s; + + if (s->state >= usb_stream_sync1) { + int l, p, max_diff, max_diff_0; + int urb_size = 0; + unsigned int frames_per_packet, min_frames = 0; + + frames_per_packet = (s->period_size - s->idle_insize); + frames_per_packet <<= 8; + frames_per_packet /= + s->cfg.frame_size * inurb->number_of_packets; + frames_per_packet++; + + max_diff_0 = s->cfg.frame_size; + if (s->cfg.period_frames >= 256) + max_diff_0 <<= 1; + if (s->cfg.period_frames >= 1024) + max_diff_0 <<= 1; + max_diff = max_diff_0; + for (p = 0; p < inurb->number_of_packets; ++p) { + int diff; + + l = inurb->iso_frame_desc[p].actual_length; + urb_size += l; + + min_frames += frames_per_packet; + diff = urb_size - + (min_frames >> 8) * s->cfg.frame_size; + if (diff < max_diff) { + snd_printdd(KERN_DEBUG "%i %i %i %i\n", + s->insize_done, + urb_size / (int)s->cfg.frame_size, + inurb->number_of_packets, diff); + max_diff = diff; + } + } + s->idle_insize -= max_diff - max_diff_0; + s->idle_insize += urb_size - s->period_size; + if (s->idle_insize < 0) { + snd_printk(KERN_WARNING "%i %i %i\n", + s->idle_insize, urb_size, s->period_size); + return; + } else if (s->idle_insize == 0) { + s->next_inpacket_split = + (s->inpacket_head + 1) % s->inpackets; + s->next_inpacket_split_at = 0; + } else { + unsigned int split = s->inpacket_head; + + l = s->idle_insize; + while (l > s->inpacket[split].length) { + l -= s->inpacket[split].length; + if (split == 0) + split = s->inpackets - 1; + else + split--; + } + s->next_inpacket_split = split; + s->next_inpacket_split_at = + s->inpacket[split].length - l; + } + + s->insize_done += urb_size; + + if (usb_stream_prepare_playback(sk, inurb) < 0) + return; + + } else + playback_prep_freqn(sk, sk->idle_outurb); + + if (submit_urbs(sk, inurb, outurb) < 0) + return; + + if (s->state == usb_stream_sync1 && s->insize_done > 360000) { + /* just guesswork ^^^^^^ */ + s->state = usb_stream_ready; + subs_set_complete(sk->inurb, i_capture_idle); + subs_set_complete(sk->outurb, i_playback_idle); + } +} + +static void i_capture_start(struct urb *urb) +{ + struct usb_iso_packet_descriptor *id = urb->iso_frame_desc; + struct usb_stream_kernel *sk = urb->context; + struct usb_stream *s = sk->s; + int p; + int empty = 0; + + if (urb->status) { + snd_printk(KERN_WARNING "status=%i\n", urb->status); + return; + } + + for (p = 0; p < urb->number_of_packets; ++p) { + int l = id[p].actual_length; + + if (l < s->cfg.frame_size) { + ++empty; + if (s->state >= usb_stream_sync0) { + snd_printk(KERN_WARNING "%i\n", l); + return; + } + } + s->inpacket_head++; + s->inpacket_head %= s->inpackets; + s->inpacket[s->inpacket_head].offset = + id[p].offset + (urb->transfer_buffer - (void *)s); + s->inpacket[s->inpacket_head].length = l; + } +#ifdef SHOW_EMPTY + if (empty) { + printk(KERN_DEBUG"%s:%i: %i", __func__, __LINE__, + urb->iso_frame_desc[0].actual_length); + for (pack = 1; pack < urb->number_of_packets; ++pack) { + int l = urb->iso_frame_desc[pack].actual_length; + + printk(KERN_CONT " %i", l); + } + printk(KERN_CONT "\n"); + } +#endif + if (!empty && s->state < usb_stream_sync1) + ++s->state; + + if (balance_capture(sk, urb)) + stream_start(sk, urb, sk->i_urb); +} + +static void i_playback_start(struct urb *urb) +{ + struct usb_stream_kernel *sk = urb->context; + + if (balance_playback(sk, urb)) + stream_start(sk, sk->i_urb, urb); +} + +int usb_stream_start(struct usb_stream_kernel *sk) +{ + struct usb_stream *s = sk->s; + int frame = 0, iters = 0; + int u, err; + int try = 0; + + if (s->state != usb_stream_stopped) + return -EAGAIN; + + subs_set_complete(sk->inurb, i_capture_start); + subs_set_complete(sk->outurb, i_playback_start); + memset(sk->write_page, 0, s->write_size); +dotry: + s->insize_done = 0; + s->idle_insize = 0; + s->idle_outsize = 0; + s->sync_packet = -1; + s->inpacket_head = -1; + sk->iso_frame_balance = 0; + ++try; + for (u = 0; u < 2; u++) { + struct urb *inurb = sk->inurb[u]; + struct urb *outurb = sk->outurb[u]; + + playback_prep_freqn(sk, outurb); + inurb->number_of_packets = outurb->number_of_packets; + inurb->transfer_buffer_length = + inurb->number_of_packets * + inurb->iso_frame_desc[0].length; + + if (u == 0) { + int now; + struct usb_device *dev = inurb->dev; + + frame = usb_get_current_frame_number(dev); + do { + now = usb_get_current_frame_number(dev); + ++iters; + } while (now > -1 && now == frame); + } + err = usb_submit_urb(inurb, GFP_ATOMIC); + if (err < 0) { + snd_printk(KERN_ERR + "usb_submit_urb(sk->inurb[%i]) returned %i\n", + u, err); + return err; + } + err = usb_submit_urb(outurb, GFP_ATOMIC); + if (err < 0) { + snd_printk(KERN_ERR + "usb_submit_urb(sk->outurb[%i]) returned %i\n", + u, err); + return err; + } + + if (inurb->start_frame != outurb->start_frame) { + snd_printd(KERN_DEBUG + "u[%i] start_frames differ in:%u out:%u\n", + u, inurb->start_frame, outurb->start_frame); + goto check_retry; + } + } + snd_printdd(KERN_DEBUG "%i %i\n", frame, iters); + try = 0; +check_retry: + if (try) { + usb_stream_stop(sk); + if (try < 5) { + msleep(1500); + snd_printd(KERN_DEBUG "goto dotry;\n"); + goto dotry; + } + snd_printk(KERN_WARNING + "couldn't start all urbs on the same start_frame.\n"); + return -EFAULT; + } + + sk->idle_inurb = sk->inurb[USB_STREAM_NURBS - 2]; + sk->idle_outurb = sk->outurb[USB_STREAM_NURBS - 2]; + sk->completed_inurb = sk->inurb[USB_STREAM_NURBS - 1]; + sk->completed_outurb = sk->outurb[USB_STREAM_NURBS - 1]; + +/* wait, check */ + { + int wait_ms = 3000; + + while (s->state != usb_stream_ready && wait_ms > 0) { + snd_printdd(KERN_DEBUG "%i\n", s->state); + msleep(200); + wait_ms -= 200; + } + } + + return s->state == usb_stream_ready ? 0 : -EFAULT; +} + + +/* stop */ + +void usb_stream_stop(struct usb_stream_kernel *sk) +{ + int u; + + if (!sk->s) + return; + for (u = 0; u < USB_STREAM_NURBS; ++u) { + usb_kill_urb(sk->inurb[u]); + usb_kill_urb(sk->outurb[u]); + } + sk->s->state = usb_stream_stopped; + msleep(400); +} diff --git a/sound/usb/usx2y/usb_stream.h b/sound/usb/usx2y/usb_stream.h new file mode 100644 index 000000000..73e57b341 --- /dev/null +++ b/sound/usb/usx2y/usb_stream.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __USB_STREAM_H +#define __USB_STREAM_H + +#include <uapi/sound/usb_stream.h> + +#define USB_STREAM_NURBS 4 +#define USB_STREAM_URBDEPTH 4 + +struct usb_stream_kernel { + struct usb_stream *s; + + void *write_page; + + unsigned int n_o_ps; + + struct urb *inurb[USB_STREAM_NURBS]; + struct urb *idle_inurb; + struct urb *completed_inurb; + struct urb *outurb[USB_STREAM_NURBS]; + struct urb *idle_outurb; + struct urb *completed_outurb; + struct urb *i_urb; + + int iso_frame_balance; + + wait_queue_head_t sleep; + + unsigned int out_phase; + unsigned int out_phase_peeked; + unsigned int freqn; +}; + +struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk, + struct usb_device *dev, + unsigned int in_endpoint, + unsigned int out_endpoint, + unsigned int sample_rate, + unsigned int use_packsize, + unsigned int period_frames, + unsigned int frame_size); +void usb_stream_free(struct usb_stream_kernel *sk); +int usb_stream_start(struct usb_stream_kernel *sk); +void usb_stream_stop(struct usb_stream_kernel *sk); + +#endif /* __USB_STREAM_H */ diff --git a/sound/usb/usx2y/usbus428ctldefs.h b/sound/usb/usx2y/usbus428ctldefs.h new file mode 100644 index 000000000..9ba15d974 --- /dev/null +++ b/sound/usb/usx2y/usbus428ctldefs.h @@ -0,0 +1,93 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * + * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de> + */ + +enum E_IN84 { + E_FADER_0 = 0, + E_FADER_1, + E_FADER_2, + E_FADER_3, + E_FADER_4, + E_FADER_5, + E_FADER_6, + E_FADER_7, + E_FADER_M, + E_TRANSPORT, + E_MODIFIER = 10, + E_FILTER_SELECT, + E_SELECT, + E_MUTE, + + E_SWITCH = 15, + E_WHEEL_GAIN, + E_WHEEL_FREQ, + E_WHEEL_Q, + E_WHEEL_PAN, + E_WHEEL = 20 +}; + +#define T_RECORD 1 +#define T_PLAY 2 +#define T_STOP 4 +#define T_F_FWD 8 +#define T_REW 0x10 +#define T_SOLO 0x20 +#define T_REC 0x40 +#define T_NULL 0x80 + + +struct us428_ctls { + unsigned char fader[9]; + unsigned char transport; + unsigned char modifier; + unsigned char filters_elect; + unsigned char select; + unsigned char mute; + unsigned char unknown; + unsigned char wswitch; + unsigned char wheel[5]; +}; + +struct us428_set_byte { + unsigned char offset, + value; +}; + +enum { + ELT_VOLUME = 0, + ELT_LIGHT +}; + +struct usx2y_volume { + unsigned char channel, + lh, + ll, + rh, + rl; +}; + +struct us428_lights { + struct us428_set_byte light[7]; +}; + +struct us428_p4out { + char type; + union { + struct usx2y_volume vol; + struct us428_lights lights; + } val; +}; + +#define N_US428_CTL_BUFS 16 +#define N_US428_P4OUT_BUFS 16 +struct us428ctls_sharedmem { + struct us428_ctls ctl_snapshot[N_US428_CTL_BUFS]; + int ctl_snapshot_differs_at[N_US428_CTL_BUFS]; + int ctl_snapshot_last, ctl_snapshot_red; + struct us428_p4out p4out[N_US428_P4OUT_BUFS]; + int p4out_last, p4out_sent; +}; + +#define US428_SHAREDMEM_PAGES PAGE_ALIGN(sizeof(struct us428ctls_sharedmem)) diff --git a/sound/usb/usx2y/usbusx2y.c b/sound/usb/usx2y/usbusx2y.c new file mode 100644 index 000000000..52f4e6652 --- /dev/null +++ b/sound/usb/usx2y/usbusx2y.c @@ -0,0 +1,466 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * usbusx2y.c - ALSA USB US-428 Driver + * +2005-04-14 Karsten Wiese + Version 0.8.7.2: + Call snd_card_free() instead of snd_card_free_in_thread() to prevent oops with dead keyboard symptom. + Tested ok with kernel 2.6.12-rc2. + +2004-12-14 Karsten Wiese + Version 0.8.7.1: + snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open. + +2004-12-02 Karsten Wiese + Version 0.8.7: + Use macro usb_maxpacket() for portability. + +2004-10-26 Karsten Wiese + Version 0.8.6: + wake_up() process waiting in usx2y_urbs_start() on error. + +2004-10-21 Karsten Wiese + Version 0.8.5: + nrpacks is runtime or compiletime configurable now with tested values from 1 to 4. + +2004-10-03 Karsten Wiese + Version 0.8.2: + Avoid any possible racing while in prepare callback. + +2004-09-30 Karsten Wiese + Version 0.8.0: + Simplified things and made ohci work again. + +2004-09-20 Karsten Wiese + Version 0.7.3: + Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb(). + +2004-07-13 Karsten Wiese + Version 0.7.1: + Don't sleep in START/STOP callbacks anymore. + us428 channels C/D not handled just for this version, sorry. + +2004-06-21 Karsten Wiese + Version 0.6.4: + Temporarely suspend midi input + to sanely call usb_set_interface() when setting format. + +2004-06-12 Karsten Wiese + Version 0.6.3: + Made it thus the following rule is enforced: + "All pcm substreams of one usx2y have to operate at the same rate & format." + +2004-04-06 Karsten Wiese + Version 0.6.0: + Runs on 2.6.5 kernel without any "--with-debug=" things. + us224 reported running. + +2004-01-14 Karsten Wiese + Version 0.5.1: + Runs with 2.6.1 kernel. + +2003-12-30 Karsten Wiese + Version 0.4.1: + Fix 24Bit 4Channel capturing for the us428. + +2003-11-27 Karsten Wiese, Martin Langer + Version 0.4: + us122 support. + us224 could be tested by uncommenting the sections containing USB_ID_US224 + +2003-11-03 Karsten Wiese + Version 0.3: + 24Bit support. + "arecord -D hw:1 -c 2 -r 48000 -M -f S24_3LE|aplay -D hw:1 -c 2 -r 48000 -M -f S24_3LE" works. + +2003-08-22 Karsten Wiese + Version 0.0.8: + Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader. + See: + http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz + +2003-06-18 Karsten Wiese + Version 0.0.5: + changed to compile with kernel 2.4.21 and alsa 0.9.4 + +2002-10-16 Karsten Wiese + Version 0.0.4: + compiles again with alsa-current. + USB_ISO_ASAP not used anymore (most of the time), instead + urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore. + + To get the best out of this: + Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds. + This helped me much on my slowish PII 400 & PIII 500. + ACPI yet untested but might cause the same bad behaviour. + Use a kernel with lowlatency and preemptiv patches applied. + To autoload snd-usb-midi append a line + post-install snd-usb-us428 modprobe snd-usb-midi + to /etc/modules.conf. + + known problems: + sliders, knobs, lights not yet handled except MASTER Volume slider. + "pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does. + KDE3: "Enable full duplex operation" deadlocks. + +2002-08-31 Karsten Wiese + Version 0.0.3: audio also simplex; + simplifying: iso urbs only 1 packet, melted structs. + ASYNC_UNLINK not used anymore: no more crashes so far..... + for alsa 0.9 rc3. + +2002-08-09 Karsten Wiese + Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol. + The firmware has been sniffed from win2k us-428 driver 3.09. + + * Copyright (c) 2002 - 2004 Karsten Wiese + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/usb.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> + +#include <sound/rawmidi.h> +#include "usx2y.h" +#include "usbusx2y.h" +#include "usX2Yhwdep.h" + +MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>"); +MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.2"); +MODULE_LICENSE("GPL"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */ + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS"."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS"."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS"."); + +static int snd_usx2y_card_used[SNDRV_CARDS]; + +static void snd_usx2y_card_private_free(struct snd_card *card); +static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s); + +/* + * pipe 4 is used for switching the lamps, setting samplerate, volumes .... + */ +static void i_usx2y_out04_int(struct urb *urb) +{ +#ifdef CONFIG_SND_DEBUG + if (urb->status) { + int i; + struct usx2ydev *usx2y = urb->context; + + for (i = 0; i < 10 && usx2y->as04.urb[i] != urb; i++) + ; + snd_printdd("%s urb %i status=%i\n", __func__, i, urb->status); + } +#endif +} + +static void i_usx2y_in04_int(struct urb *urb) +{ + int err = 0; + struct usx2ydev *usx2y = urb->context; + struct us428ctls_sharedmem *us428ctls = usx2y->us428ctls_sharedmem; + struct us428_p4out *p4out; + int i, j, n, diff, send; + + usx2y->in04_int_calls++; + + if (urb->status) { + snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status); + return; + } + + // printk("%i:0x%02X ", 8, (int)((unsigned char*)usx2y->in04_buf)[8]); Master volume shows 0 here if fader is at max during boot ?!? + if (us428ctls) { + diff = -1; + if (us428ctls->ctl_snapshot_last == -2) { + diff = 0; + memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last)); + us428ctls->ctl_snapshot_last = -1; + } else { + for (i = 0; i < 21; i++) { + if (usx2y->in04_last[i] != ((char *)usx2y->in04_buf)[i]) { + if (diff < 0) + diff = i; + usx2y->in04_last[i] = ((char *)usx2y->in04_buf)[i]; + } + } + } + if (diff >= 0) { + n = us428ctls->ctl_snapshot_last + 1; + if (n >= N_US428_CTL_BUFS || n < 0) + n = 0; + memcpy(us428ctls->ctl_snapshot + n, usx2y->in04_buf, sizeof(us428ctls->ctl_snapshot[0])); + us428ctls->ctl_snapshot_differs_at[n] = diff; + us428ctls->ctl_snapshot_last = n; + wake_up(&usx2y->us428ctls_wait_queue_head); + } + } + + if (usx2y->us04) { + if (!usx2y->us04->submitted) { + do { + err = usb_submit_urb(usx2y->us04->urb[usx2y->us04->submitted++], GFP_ATOMIC); + } while (!err && usx2y->us04->submitted < usx2y->us04->len); + } + } else { + if (us428ctls && us428ctls->p4out_last >= 0 && us428ctls->p4out_last < N_US428_P4OUT_BUFS) { + if (us428ctls->p4out_last != us428ctls->p4out_sent) { + send = us428ctls->p4out_sent + 1; + if (send >= N_US428_P4OUT_BUFS) + send = 0; + for (j = 0; j < URBS_ASYNC_SEQ && !err; ++j) { + if (!usx2y->as04.urb[j]->status) { + p4out = us428ctls->p4out + send; // FIXME if more than 1 p4out is new, 1 gets lost. + usb_fill_bulk_urb(usx2y->as04.urb[j], usx2y->dev, + usb_sndbulkpipe(usx2y->dev, 0x04), &p4out->val.vol, + p4out->type == ELT_LIGHT ? sizeof(struct us428_lights) : 5, + i_usx2y_out04_int, usx2y); + err = usb_submit_urb(usx2y->as04.urb[j], GFP_ATOMIC); + us428ctls->p4out_sent = send; + break; + } + } + } + } + } + + if (err) + snd_printk(KERN_ERR "in04_int() usb_submit_urb err=%i\n", err); + + urb->dev = usx2y->dev; + usb_submit_urb(urb, GFP_ATOMIC); +} + +/* + * Prepare some urbs + */ +int usx2y_async_seq04_init(struct usx2ydev *usx2y) +{ + int err = 0, i; + + if (WARN_ON(usx2y->as04.buffer)) + return -EBUSY; + + usx2y->as04.buffer = kmalloc_array(URBS_ASYNC_SEQ, + URB_DATA_LEN_ASYNC_SEQ, GFP_KERNEL); + if (!usx2y->as04.buffer) { + err = -ENOMEM; + } else { + for (i = 0; i < URBS_ASYNC_SEQ; ++i) { + usx2y->as04.urb[i] = usb_alloc_urb(0, GFP_KERNEL); + if (!usx2y->as04.urb[i]) { + err = -ENOMEM; + break; + } + usb_fill_bulk_urb(usx2y->as04.urb[i], usx2y->dev, + usb_sndbulkpipe(usx2y->dev, 0x04), + usx2y->as04.buffer + URB_DATA_LEN_ASYNC_SEQ * i, 0, + i_usx2y_out04_int, usx2y); + err = usb_urb_ep_type_check(usx2y->as04.urb[i]); + if (err < 0) + break; + } + } + if (err) + usx2y_unlinkseq(&usx2y->as04); + return err; +} + +int usx2y_in04_init(struct usx2ydev *usx2y) +{ + int err; + + if (WARN_ON(usx2y->in04_urb)) + return -EBUSY; + + usx2y->in04_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!usx2y->in04_urb) { + err = -ENOMEM; + goto error; + } + + usx2y->in04_buf = kmalloc(21, GFP_KERNEL); + if (!usx2y->in04_buf) { + err = -ENOMEM; + goto error; + } + + init_waitqueue_head(&usx2y->in04_wait_queue); + usb_fill_int_urb(usx2y->in04_urb, usx2y->dev, usb_rcvintpipe(usx2y->dev, 0x4), + usx2y->in04_buf, 21, + i_usx2y_in04_int, usx2y, + 10); + if (usb_urb_ep_type_check(usx2y->in04_urb)) { + err = -EINVAL; + goto error; + } + return usb_submit_urb(usx2y->in04_urb, GFP_KERNEL); + + error: + kfree(usx2y->in04_buf); + usb_free_urb(usx2y->in04_urb); + usx2y->in04_buf = NULL; + usx2y->in04_urb = NULL; + return err; +} + +static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s) +{ + int i; + + for (i = 0; i < URBS_ASYNC_SEQ; ++i) { + if (!s->urb[i]) + continue; + usb_kill_urb(s->urb[i]); + usb_free_urb(s->urb[i]); + s->urb[i] = NULL; + } + kfree(s->buffer); + s->buffer = NULL; +} + +static const struct usb_device_id snd_usx2y_usb_id_table[] = { + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x1604, + .idProduct = USB_ID_US428 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x1604, + .idProduct = USB_ID_US122 + }, + { + .match_flags = USB_DEVICE_ID_MATCH_DEVICE, + .idVendor = 0x1604, + .idProduct = USB_ID_US224 + }, + { /* terminator */ } +}; +MODULE_DEVICE_TABLE(usb, snd_usx2y_usb_id_table); + +static int usx2y_create_card(struct usb_device *device, + struct usb_interface *intf, + struct snd_card **cardp) +{ + int dev; + struct snd_card *card; + int err; + + for (dev = 0; dev < SNDRV_CARDS; ++dev) + if (enable[dev] && !snd_usx2y_card_used[dev]) + break; + if (dev >= SNDRV_CARDS) + return -ENODEV; + err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE, + sizeof(struct usx2ydev), &card); + if (err < 0) + return err; + snd_usx2y_card_used[usx2y(card)->card_index = dev] = 1; + card->private_free = snd_usx2y_card_private_free; + usx2y(card)->dev = device; + init_waitqueue_head(&usx2y(card)->prepare_wait_queue); + init_waitqueue_head(&usx2y(card)->us428ctls_wait_queue_head); + mutex_init(&usx2y(card)->pcm_mutex); + INIT_LIST_HEAD(&usx2y(card)->midi_list); + strcpy(card->driver, "USB "NAME_ALLCAPS""); + sprintf(card->shortname, "TASCAM "NAME_ALLCAPS""); + sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)", + card->shortname, + le16_to_cpu(device->descriptor.idVendor), + le16_to_cpu(device->descriptor.idProduct), + 0,//us428(card)->usbmidi.ifnum, + usx2y(card)->dev->bus->busnum, usx2y(card)->dev->devnum); + *cardp = card; + return 0; +} + +static void snd_usx2y_card_private_free(struct snd_card *card) +{ + struct usx2ydev *usx2y = usx2y(card); + + kfree(usx2y->in04_buf); + usb_free_urb(usx2y->in04_urb); + if (usx2y->us428ctls_sharedmem) + free_pages_exact(usx2y->us428ctls_sharedmem, + US428_SHAREDMEM_PAGES); + if (usx2y->card_index >= 0 && usx2y->card_index < SNDRV_CARDS) + snd_usx2y_card_used[usx2y->card_index] = 0; +} + +static void snd_usx2y_disconnect(struct usb_interface *intf) +{ + struct snd_card *card; + struct usx2ydev *usx2y; + struct list_head *p; + + card = usb_get_intfdata(intf); + if (!card) + return; + usx2y = usx2y(card); + usx2y->chip_status = USX2Y_STAT_CHIP_HUP; + usx2y_unlinkseq(&usx2y->as04); + usb_kill_urb(usx2y->in04_urb); + snd_card_disconnect(card); + + /* release the midi resources */ + list_for_each(p, &usx2y->midi_list) { + snd_usbmidi_disconnect(p); + } + if (usx2y->us428ctls_sharedmem) + wake_up(&usx2y->us428ctls_wait_queue_head); + snd_card_free(card); +} + +static int snd_usx2y_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct usb_device *device = interface_to_usbdev(intf); + struct snd_card *card; + int err; + + if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 || + (le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 && + le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 && + le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428)) + return -EINVAL; + + err = usx2y_create_card(device, intf, &card); + if (err < 0) + return err; + err = usx2y_hwdep_new(card, device); + if (err < 0) + goto error; + err = snd_card_register(card); + if (err < 0) + goto error; + + dev_set_drvdata(&intf->dev, card); + return 0; + + error: + snd_card_free(card); + return err; +} + +static struct usb_driver snd_usx2y_usb_driver = { + .name = "snd-usb-usx2y", + .probe = snd_usx2y_probe, + .disconnect = snd_usx2y_disconnect, + .id_table = snd_usx2y_usb_id_table, +}; +module_usb_driver(snd_usx2y_usb_driver); diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h new file mode 100644 index 000000000..8d82f5cc2 --- /dev/null +++ b/sound/usb/usx2y/usbusx2y.h @@ -0,0 +1,88 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef USBUSX2Y_H +#define USBUSX2Y_H +#include "../usbaudio.h" +#include "../midi.h" +#include "usbus428ctldefs.h" + +#define NRURBS 2 + + +#define URBS_ASYNC_SEQ 10 +#define URB_DATA_LEN_ASYNC_SEQ 32 +struct snd_usx2y_async_seq { + struct urb *urb[URBS_ASYNC_SEQ]; + char *buffer; +}; + +struct snd_usx2y_urb_seq { + int submitted; + int len; + struct urb *urb[]; +}; + +#include "usx2yhwdeppcm.h" + +struct usx2ydev { + struct usb_device *dev; + int card_index; + int stride; + struct urb *in04_urb; + void *in04_buf; + char in04_last[24]; + unsigned int in04_int_calls; + struct snd_usx2y_urb_seq *us04; + wait_queue_head_t in04_wait_queue; + struct snd_usx2y_async_seq as04; + unsigned int rate, + format; + int chip_status; + struct mutex pcm_mutex; + struct us428ctls_sharedmem *us428ctls_sharedmem; + int wait_iso_frame; + wait_queue_head_t us428ctls_wait_queue_head; + struct snd_usx2y_hwdep_pcm_shm *hwdep_pcm_shm; + struct snd_usx2y_substream *subs[4]; + struct snd_usx2y_substream * volatile prepare_subs; + wait_queue_head_t prepare_wait_queue; + struct list_head midi_list; + int pcm_devs; +}; + + +struct snd_usx2y_substream { + struct usx2ydev *usx2y; + struct snd_pcm_substream *pcm_substream; + + int endpoint; + unsigned int maxpacksize; /* max packet size in bytes */ + + atomic_t state; +#define STATE_STOPPED 0 +#define STATE_STARTING1 1 +#define STATE_STARTING2 2 +#define STATE_STARTING3 3 +#define STATE_PREPARED 4 +#define STATE_PRERUNNING 6 +#define STATE_RUNNING 8 + + int hwptr; /* free frame position in the buffer (only for playback) */ + int hwptr_done; /* processed frame position in the buffer */ + int transfer_done; /* processed frames since last period update */ + + struct urb *urb[NRURBS]; /* data urb table */ + struct urb *completed_urb; + char *tmpbuf; /* temporary buffer for playback */ +}; + + +#define usx2y(c) ((struct usx2ydev *)(c)->private_data) + +int usx2y_audio_create(struct snd_card *card); + +int usx2y_async_seq04_init(struct usx2ydev *usx2y); +int usx2y_in04_init(struct usx2ydev *usx2y); + +#define NAME_ALLCAPS "US-X2Y" + +#endif diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c new file mode 100644 index 000000000..5197599e7 --- /dev/null +++ b/sound/usb/usx2y/usbusx2yaudio.c @@ -0,0 +1,1033 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * US-X2Y AUDIO + * Copyright (c) 2002-2004 by Karsten Wiese + * + * based on + * + * (Tentative) USB Audio Driver for ALSA + * + * Main and PCM part + * + * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> + * + * Many codes borrowed from audio.c by + * Alan Cox (alan@lxorguk.ukuu.org.uk) + * Thomas Sailer (sailer@ife.ee.ethz.ch) + */ + + +#include <linux/interrupt.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/moduleparam.h> +#include <sound/core.h> +#include <sound/info.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include "usx2y.h" +#include "usbusx2y.h" + +/* Default value used for nr of packs per urb. + * 1 to 4 have been tested ok on uhci. + * To use 3 on ohci, you'd need a patch: + * look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on + * "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425" + * + * 1, 2 and 4 work out of the box on ohci, if I recall correctly. + * Bigger is safer operation, smaller gives lower latencies. + */ +#define USX2Y_NRPACKS 4 + +/* If your system works ok with this module's parameter + * nrpacks set to 1, you might as well comment + * this define out, and thereby produce smaller, faster code. + * You'd also set USX2Y_NRPACKS to 1 then. + */ +#define USX2Y_NRPACKS_VARIABLE 1 + +#ifdef USX2Y_NRPACKS_VARIABLE +static int nrpacks = USX2Y_NRPACKS; /* number of packets per urb */ +#define nr_of_packs() nrpacks +module_param(nrpacks, int, 0444); +MODULE_PARM_DESC(nrpacks, "Number of packets per URB."); +#else +#define nr_of_packs() USX2Y_NRPACKS +#endif + +static int usx2y_urb_capt_retire(struct snd_usx2y_substream *subs) +{ + struct urb *urb = subs->completed_urb; + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + unsigned char *cp; + int i, len, lens = 0, hwptr_done = subs->hwptr_done; + int cnt, blen; + struct usx2ydev *usx2y = subs->usx2y; + + for (i = 0; i < nr_of_packs(); i++) { + cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset; + if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */ + snd_printk(KERN_ERR + "active frame status %i. Most probably some hardware problem.\n", + urb->iso_frame_desc[i].status); + return urb->iso_frame_desc[i].status; + } + len = urb->iso_frame_desc[i].actual_length / usx2y->stride; + if (!len) { + snd_printd("0 == len ERROR!\n"); + continue; + } + + /* copy a data chunk */ + if ((hwptr_done + len) > runtime->buffer_size) { + cnt = runtime->buffer_size - hwptr_done; + blen = cnt * usx2y->stride; + memcpy(runtime->dma_area + hwptr_done * usx2y->stride, cp, blen); + memcpy(runtime->dma_area, cp + blen, len * usx2y->stride - blen); + } else { + memcpy(runtime->dma_area + hwptr_done * usx2y->stride, cp, + len * usx2y->stride); + } + lens += len; + hwptr_done += len; + if (hwptr_done >= runtime->buffer_size) + hwptr_done -= runtime->buffer_size; + } + + subs->hwptr_done = hwptr_done; + subs->transfer_done += lens; + /* update the pointer, call callback if necessary */ + if (subs->transfer_done >= runtime->period_size) { + subs->transfer_done -= runtime->period_size; + snd_pcm_period_elapsed(subs->pcm_substream); + } + return 0; +} + +/* + * prepare urb for playback data pipe + * + * we copy the data directly from the pcm buffer. + * the current position to be copied is held in hwptr field. + * since a urb can handle only a single linear buffer, if the total + * transferred area overflows the buffer boundary, we cannot send + * it directly from the buffer. thus the data is once copied to + * a temporary buffer and urb points to that. + */ +static int usx2y_urb_play_prepare(struct snd_usx2y_substream *subs, + struct urb *cap_urb, + struct urb *urb) +{ + struct usx2ydev *usx2y = subs->usx2y; + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + int count, counts, pack, len; + + count = 0; + for (pack = 0; pack < nr_of_packs(); pack++) { + /* calculate the size of a packet */ + counts = cap_urb->iso_frame_desc[pack].actual_length / usx2y->stride; + count += counts; + if (counts < 43 || counts > 50) { + snd_printk(KERN_ERR "should not be here with counts=%i\n", counts); + return -EPIPE; + } + /* set up descriptor */ + urb->iso_frame_desc[pack].offset = pack ? + urb->iso_frame_desc[pack - 1].offset + + urb->iso_frame_desc[pack - 1].length : + 0; + urb->iso_frame_desc[pack].length = cap_urb->iso_frame_desc[pack].actual_length; + } + if (atomic_read(&subs->state) >= STATE_PRERUNNING) { + if (subs->hwptr + count > runtime->buffer_size) { + /* err, the transferred area goes over buffer boundary. + * copy the data to the temp buffer. + */ + len = runtime->buffer_size - subs->hwptr; + urb->transfer_buffer = subs->tmpbuf; + memcpy(subs->tmpbuf, runtime->dma_area + + subs->hwptr * usx2y->stride, len * usx2y->stride); + memcpy(subs->tmpbuf + len * usx2y->stride, + runtime->dma_area, (count - len) * usx2y->stride); + subs->hwptr += count; + subs->hwptr -= runtime->buffer_size; + } else { + /* set the buffer pointer */ + urb->transfer_buffer = runtime->dma_area + subs->hwptr * usx2y->stride; + subs->hwptr += count; + if (subs->hwptr >= runtime->buffer_size) + subs->hwptr -= runtime->buffer_size; + } + } else { + urb->transfer_buffer = subs->tmpbuf; + } + urb->transfer_buffer_length = count * usx2y->stride; + return 0; +} + +/* + * process after playback data complete + * + * update the current position and call callback if a period is processed. + */ +static void usx2y_urb_play_retire(struct snd_usx2y_substream *subs, struct urb *urb) +{ + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + int len = urb->actual_length / subs->usx2y->stride; + + subs->transfer_done += len; + subs->hwptr_done += len; + if (subs->hwptr_done >= runtime->buffer_size) + subs->hwptr_done -= runtime->buffer_size; + if (subs->transfer_done >= runtime->period_size) { + subs->transfer_done -= runtime->period_size; + snd_pcm_period_elapsed(subs->pcm_substream); + } +} + +static int usx2y_urb_submit(struct snd_usx2y_substream *subs, struct urb *urb, int frame) +{ + int err; + + if (!urb) + return -ENODEV; + urb->start_frame = frame + NRURBS * nr_of_packs(); // let hcd do rollover sanity checks + urb->hcpriv = NULL; + urb->dev = subs->usx2y->dev; /* we need to set this at each time */ + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + snd_printk(KERN_ERR "usb_submit_urb() returned %i\n", err); + return err; + } + return 0; +} + +static int usx2y_usbframe_complete(struct snd_usx2y_substream *capsubs, + struct snd_usx2y_substream *playbacksubs, + int frame) +{ + int err, state; + struct urb *urb = playbacksubs->completed_urb; + + state = atomic_read(&playbacksubs->state); + if (urb) { + if (state == STATE_RUNNING) + usx2y_urb_play_retire(playbacksubs, urb); + else if (state >= STATE_PRERUNNING) + atomic_inc(&playbacksubs->state); + } else { + switch (state) { + case STATE_STARTING1: + urb = playbacksubs->urb[0]; + atomic_inc(&playbacksubs->state); + break; + case STATE_STARTING2: + urb = playbacksubs->urb[1]; + atomic_inc(&playbacksubs->state); + break; + } + } + if (urb) { + err = usx2y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb); + if (err) + return err; + err = usx2y_urb_submit(playbacksubs, urb, frame); + if (err) + return err; + } + + playbacksubs->completed_urb = NULL; + + state = atomic_read(&capsubs->state); + if (state >= STATE_PREPARED) { + if (state == STATE_RUNNING) { + err = usx2y_urb_capt_retire(capsubs); + if (err) + return err; + } else if (state >= STATE_PRERUNNING) { + atomic_inc(&capsubs->state); + } + err = usx2y_urb_submit(capsubs, capsubs->completed_urb, frame); + if (err) + return err; + } + capsubs->completed_urb = NULL; + return 0; +} + +static void usx2y_clients_stop(struct usx2ydev *usx2y) +{ + struct snd_usx2y_substream *subs; + struct urb *urb; + int s, u; + + for (s = 0; s < 4; s++) { + subs = usx2y->subs[s]; + if (subs) { + snd_printdd("%i %p state=%i\n", s, subs, atomic_read(&subs->state)); + atomic_set(&subs->state, STATE_STOPPED); + } + } + for (s = 0; s < 4; s++) { + subs = usx2y->subs[s]; + if (subs) { + if (atomic_read(&subs->state) >= STATE_PRERUNNING) + snd_pcm_stop_xrun(subs->pcm_substream); + for (u = 0; u < NRURBS; u++) { + urb = subs->urb[u]; + if (urb) + snd_printdd("%i status=%i start_frame=%i\n", + u, urb->status, urb->start_frame); + } + } + } + usx2y->prepare_subs = NULL; + wake_up(&usx2y->prepare_wait_queue); +} + +static void usx2y_error_urb_status(struct usx2ydev *usx2y, + struct snd_usx2y_substream *subs, struct urb *urb) +{ + snd_printk(KERN_ERR "ep=%i stalled with status=%i\n", subs->endpoint, urb->status); + urb->status = 0; + usx2y_clients_stop(usx2y); +} + +static void i_usx2y_urb_complete(struct urb *urb) +{ + struct snd_usx2y_substream *subs = urb->context; + struct usx2ydev *usx2y = subs->usx2y; + struct snd_usx2y_substream *capsubs, *playbacksubs; + + if (unlikely(atomic_read(&subs->state) < STATE_PREPARED)) { + snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", + usb_get_current_frame_number(usx2y->dev), + subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", + urb->status, urb->start_frame); + return; + } + if (unlikely(urb->status)) { + usx2y_error_urb_status(usx2y, subs, urb); + return; + } + + subs->completed_urb = urb; + + capsubs = usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]; + playbacksubs = usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]; + + if (capsubs->completed_urb && + atomic_read(&capsubs->state) >= STATE_PREPARED && + (playbacksubs->completed_urb || + atomic_read(&playbacksubs->state) < STATE_PREPARED)) { + if (!usx2y_usbframe_complete(capsubs, playbacksubs, urb->start_frame)) { + usx2y->wait_iso_frame += nr_of_packs(); + } else { + snd_printdd("\n"); + usx2y_clients_stop(usx2y); + } + } +} + +static void usx2y_urbs_set_complete(struct usx2ydev *usx2y, + void (*complete)(struct urb *)) +{ + struct snd_usx2y_substream *subs; + struct urb *urb; + int s, u; + + for (s = 0; s < 4; s++) { + subs = usx2y->subs[s]; + if (subs) { + for (u = 0; u < NRURBS; u++) { + urb = subs->urb[u]; + if (urb) + urb->complete = complete; + } + } + } +} + +static void usx2y_subs_startup_finish(struct usx2ydev *usx2y) +{ + usx2y_urbs_set_complete(usx2y, i_usx2y_urb_complete); + usx2y->prepare_subs = NULL; +} + +static void i_usx2y_subs_startup(struct urb *urb) +{ + struct snd_usx2y_substream *subs = urb->context; + struct usx2ydev *usx2y = subs->usx2y; + struct snd_usx2y_substream *prepare_subs = usx2y->prepare_subs; + + if (prepare_subs) { + if (urb->start_frame == prepare_subs->urb[0]->start_frame) { + usx2y_subs_startup_finish(usx2y); + atomic_inc(&prepare_subs->state); + wake_up(&usx2y->prepare_wait_queue); + } + } + + i_usx2y_urb_complete(urb); +} + +static void usx2y_subs_prepare(struct snd_usx2y_substream *subs) +{ + snd_printdd("usx2y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n", + subs, subs->endpoint, subs->urb[0], subs->urb[1]); + /* reset the pointer */ + subs->hwptr = 0; + subs->hwptr_done = 0; + subs->transfer_done = 0; +} + +static void usx2y_urb_release(struct urb **urb, int free_tb) +{ + if (*urb) { + usb_kill_urb(*urb); + if (free_tb) + kfree((*urb)->transfer_buffer); + usb_free_urb(*urb); + *urb = NULL; + } +} + +/* + * release a substreams urbs + */ +static void usx2y_urbs_release(struct snd_usx2y_substream *subs) +{ + int i; + + snd_printdd("%s %i\n", __func__, subs->endpoint); + for (i = 0; i < NRURBS; i++) + usx2y_urb_release(subs->urb + i, + subs != subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]); + + kfree(subs->tmpbuf); + subs->tmpbuf = NULL; +} + +/* + * initialize a substream's urbs + */ +static int usx2y_urbs_allocate(struct snd_usx2y_substream *subs) +{ + int i; + unsigned int pipe; + int is_playback = subs == subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]; + struct usb_device *dev = subs->usx2y->dev; + struct urb **purb; + + pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) : + usb_rcvisocpipe(dev, subs->endpoint); + subs->maxpacksize = usb_maxpacket(dev, pipe); + if (!subs->maxpacksize) + return -EINVAL; + + if (is_playback && !subs->tmpbuf) { /* allocate a temporary buffer for playback */ + subs->tmpbuf = kcalloc(nr_of_packs(), subs->maxpacksize, GFP_KERNEL); + if (!subs->tmpbuf) + return -ENOMEM; + } + /* allocate and initialize data urbs */ + for (i = 0; i < NRURBS; i++) { + purb = subs->urb + i; + if (*purb) { + usb_kill_urb(*purb); + continue; + } + *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL); + if (!*purb) { + usx2y_urbs_release(subs); + return -ENOMEM; + } + if (!is_playback && !(*purb)->transfer_buffer) { + /* allocate a capture buffer per urb */ + (*purb)->transfer_buffer = + kmalloc_array(subs->maxpacksize, + nr_of_packs(), GFP_KERNEL); + if (!(*purb)->transfer_buffer) { + usx2y_urbs_release(subs); + return -ENOMEM; + } + } + (*purb)->dev = dev; + (*purb)->pipe = pipe; + (*purb)->number_of_packets = nr_of_packs(); + (*purb)->context = subs; + (*purb)->interval = 1; + (*purb)->complete = i_usx2y_subs_startup; + } + return 0; +} + +static void usx2y_subs_startup(struct snd_usx2y_substream *subs) +{ + struct usx2ydev *usx2y = subs->usx2y; + + usx2y->prepare_subs = subs; + subs->urb[0]->start_frame = -1; + wmb(); + usx2y_urbs_set_complete(usx2y, i_usx2y_subs_startup); +} + +static int usx2y_urbs_start(struct snd_usx2y_substream *subs) +{ + int i, err; + struct usx2ydev *usx2y = subs->usx2y; + struct urb *urb; + unsigned long pack; + + err = usx2y_urbs_allocate(subs); + if (err < 0) + return err; + subs->completed_urb = NULL; + for (i = 0; i < 4; i++) { + struct snd_usx2y_substream *subs = usx2y->subs[i]; + + if (subs && atomic_read(&subs->state) >= STATE_PREPARED) + goto start; + } + + start: + usx2y_subs_startup(subs); + for (i = 0; i < NRURBS; i++) { + urb = subs->urb[i]; + if (usb_pipein(urb->pipe)) { + if (!i) + atomic_set(&subs->state, STATE_STARTING3); + urb->dev = usx2y->dev; + for (pack = 0; pack < nr_of_packs(); pack++) { + urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack; + urb->iso_frame_desc[pack].length = subs->maxpacksize; + } + urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) { + snd_printk(KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err); + err = -EPIPE; + goto cleanup; + } else { + if (!i) + usx2y->wait_iso_frame = urb->start_frame; + } + urb->transfer_flags = 0; + } else { + atomic_set(&subs->state, STATE_STARTING1); + break; + } + } + err = 0; + wait_event(usx2y->prepare_wait_queue, !usx2y->prepare_subs); + if (atomic_read(&subs->state) != STATE_PREPARED) + err = -EPIPE; + + cleanup: + if (err) { + usx2y_subs_startup_finish(usx2y); + usx2y_clients_stop(usx2y); // something is completely wrong > stop everything + } + return err; +} + +/* + * return the current pcm pointer. just return the hwptr_done value. + */ +static snd_pcm_uframes_t snd_usx2y_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_usx2y_substream *subs = substream->runtime->private_data; + + return subs->hwptr_done; +} + +/* + * start/stop substream + */ +static int snd_usx2y_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_usx2y_substream *subs = substream->runtime->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + snd_printdd("%s(START)\n", __func__); + if (atomic_read(&subs->state) == STATE_PREPARED && + atomic_read(&subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]->state) >= STATE_PREPARED) { + atomic_set(&subs->state, STATE_PRERUNNING); + } else { + snd_printdd("\n"); + return -EPIPE; + } + break; + case SNDRV_PCM_TRIGGER_STOP: + snd_printdd("%s(STOP)\n", __func__); + if (atomic_read(&subs->state) >= STATE_PRERUNNING) + atomic_set(&subs->state, STATE_PREPARED); + break; + default: + return -EINVAL; + } + return 0; +} + +/* + * allocate a buffer, setup samplerate + * + * so far we use a physically linear buffer although packetize transfer + * doesn't need a continuous area. + * if sg buffer is supported on the later version of alsa, we'll follow + * that. + */ +struct s_c2 { + char c1, c2; +}; + +static const struct s_c2 setrate_44100[] = { + { 0x14, 0x08}, // this line sets 44100, well actually a little less + { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... + { 0x18, 0x42}, + { 0x18, 0x45}, + { 0x18, 0x46}, + { 0x18, 0x48}, + { 0x18, 0x4A}, + { 0x18, 0x4C}, + { 0x18, 0x4E}, + { 0x18, 0x50}, + { 0x18, 0x52}, + { 0x18, 0x54}, + { 0x18, 0x56}, + { 0x18, 0x58}, + { 0x18, 0x5A}, + { 0x18, 0x5C}, + { 0x18, 0x5E}, + { 0x18, 0x60}, + { 0x18, 0x62}, + { 0x18, 0x64}, + { 0x18, 0x66}, + { 0x18, 0x68}, + { 0x18, 0x6A}, + { 0x18, 0x6C}, + { 0x18, 0x6E}, + { 0x18, 0x70}, + { 0x18, 0x72}, + { 0x18, 0x74}, + { 0x18, 0x76}, + { 0x18, 0x78}, + { 0x18, 0x7A}, + { 0x18, 0x7C}, + { 0x18, 0x7E} +}; + +static const struct s_c2 setrate_48000[] = { + { 0x14, 0x09}, // this line sets 48000, well actually a little less + { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... + { 0x18, 0x42}, + { 0x18, 0x45}, + { 0x18, 0x46}, + { 0x18, 0x48}, + { 0x18, 0x4A}, + { 0x18, 0x4C}, + { 0x18, 0x4E}, + { 0x18, 0x50}, + { 0x18, 0x52}, + { 0x18, 0x54}, + { 0x18, 0x56}, + { 0x18, 0x58}, + { 0x18, 0x5A}, + { 0x18, 0x5C}, + { 0x18, 0x5E}, + { 0x18, 0x60}, + { 0x18, 0x62}, + { 0x18, 0x64}, + { 0x18, 0x66}, + { 0x18, 0x68}, + { 0x18, 0x6A}, + { 0x18, 0x6C}, + { 0x18, 0x6E}, + { 0x18, 0x70}, + { 0x18, 0x73}, + { 0x18, 0x74}, + { 0x18, 0x76}, + { 0x18, 0x78}, + { 0x18, 0x7A}, + { 0x18, 0x7C}, + { 0x18, 0x7E} +}; + +#define NOOF_SETRATE_URBS ARRAY_SIZE(setrate_48000) + +static void i_usx2y_04int(struct urb *urb) +{ + struct usx2ydev *usx2y = urb->context; + + if (urb->status) + snd_printk(KERN_ERR "snd_usx2y_04int() urb->status=%i\n", urb->status); + if (!--usx2y->us04->len) + wake_up(&usx2y->in04_wait_queue); +} + +static int usx2y_rate_set(struct usx2ydev *usx2y, int rate) +{ + int err = 0, i; + struct snd_usx2y_urb_seq *us = NULL; + int *usbdata = NULL; + const struct s_c2 *ra = rate == 48000 ? setrate_48000 : setrate_44100; + struct urb *urb; + + if (usx2y->rate != rate) { + us = kzalloc(struct_size(us, urb, NOOF_SETRATE_URBS), + GFP_KERNEL); + if (!us) { + err = -ENOMEM; + goto cleanup; + } + usbdata = kmalloc_array(NOOF_SETRATE_URBS, sizeof(int), + GFP_KERNEL); + if (!usbdata) { + err = -ENOMEM; + goto cleanup; + } + for (i = 0; i < NOOF_SETRATE_URBS; ++i) { + us->urb[i] = usb_alloc_urb(0, GFP_KERNEL); + if (!us->urb[i]) { + err = -ENOMEM; + goto cleanup; + } + ((char *)(usbdata + i))[0] = ra[i].c1; + ((char *)(usbdata + i))[1] = ra[i].c2; + usb_fill_bulk_urb(us->urb[i], usx2y->dev, usb_sndbulkpipe(usx2y->dev, 4), + usbdata + i, 2, i_usx2y_04int, usx2y); + } + err = usb_urb_ep_type_check(us->urb[0]); + if (err < 0) + goto cleanup; + us->submitted = 0; + us->len = NOOF_SETRATE_URBS; + usx2y->us04 = us; + wait_event_timeout(usx2y->in04_wait_queue, !us->len, HZ); + usx2y->us04 = NULL; + if (us->len) + err = -ENODEV; + cleanup: + if (us) { + us->submitted = 2*NOOF_SETRATE_URBS; + for (i = 0; i < NOOF_SETRATE_URBS; ++i) { + urb = us->urb[i]; + if (!urb) + continue; + if (urb->status) { + if (!err) + err = -ENODEV; + usb_kill_urb(urb); + } + usb_free_urb(urb); + } + usx2y->us04 = NULL; + kfree(usbdata); + kfree(us); + if (!err) + usx2y->rate = rate; + } + } + + return err; +} + +static int usx2y_format_set(struct usx2ydev *usx2y, snd_pcm_format_t format) +{ + int alternate, err; + struct list_head *p; + + if (format == SNDRV_PCM_FORMAT_S24_3LE) { + alternate = 2; + usx2y->stride = 6; + } else { + alternate = 1; + usx2y->stride = 4; + } + list_for_each(p, &usx2y->midi_list) { + snd_usbmidi_input_stop(p); + } + usb_kill_urb(usx2y->in04_urb); + err = usb_set_interface(usx2y->dev, 0, alternate); + if (err) { + snd_printk(KERN_ERR "usb_set_interface error\n"); + return err; + } + usx2y->in04_urb->dev = usx2y->dev; + err = usb_submit_urb(usx2y->in04_urb, GFP_KERNEL); + list_for_each(p, &usx2y->midi_list) { + snd_usbmidi_input_start(p); + } + usx2y->format = format; + usx2y->rate = 0; + return err; +} + + +static int snd_usx2y_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + int err = 0; + unsigned int rate = params_rate(hw_params); + snd_pcm_format_t format = params_format(hw_params); + struct snd_card *card = substream->pstr->pcm->card; + struct usx2ydev *dev = usx2y(card); + struct snd_usx2y_substream *subs; + struct snd_pcm_substream *test_substream; + int i; + + mutex_lock(&usx2y(card)->pcm_mutex); + snd_printdd("snd_usx2y_hw_params(%p, %p)\n", substream, hw_params); + /* all pcm substreams off one usx2y have to operate at the same + * rate & format + */ + for (i = 0; i < dev->pcm_devs * 2; i++) { + subs = dev->subs[i]; + if (!subs) + continue; + test_substream = subs->pcm_substream; + if (!test_substream || test_substream == substream || + !test_substream->runtime) + continue; + if ((test_substream->runtime->format && + test_substream->runtime->format != format) || + (test_substream->runtime->rate && + test_substream->runtime->rate != rate)) { + err = -EINVAL; + goto error; + } + } + + error: + mutex_unlock(&usx2y(card)->pcm_mutex); + return err; +} + +/* + * free the buffer + */ +static int snd_usx2y_pcm_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usx2y_substream *subs = runtime->private_data; + struct snd_usx2y_substream *cap_subs, *playback_subs; + + mutex_lock(&subs->usx2y->pcm_mutex); + snd_printdd("snd_usx2y_hw_free(%p)\n", substream); + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + cap_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]; + atomic_set(&subs->state, STATE_STOPPED); + usx2y_urbs_release(subs); + if (!cap_subs->pcm_substream || + !cap_subs->pcm_substream->runtime || + cap_subs->pcm_substream->runtime->state < SNDRV_PCM_STATE_PREPARED) { + atomic_set(&cap_subs->state, STATE_STOPPED); + usx2y_urbs_release(cap_subs); + } + } else { + playback_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]; + if (atomic_read(&playback_subs->state) < STATE_PREPARED) { + atomic_set(&subs->state, STATE_STOPPED); + usx2y_urbs_release(subs); + } + } + mutex_unlock(&subs->usx2y->pcm_mutex); + return 0; +} + +/* + * prepare callback + * + * set format and initialize urbs + */ +static int snd_usx2y_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usx2y_substream *subs = runtime->private_data; + struct usx2ydev *usx2y = subs->usx2y; + struct snd_usx2y_substream *capsubs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]; + int err = 0; + + snd_printdd("%s(%p)\n", __func__, substream); + + mutex_lock(&usx2y->pcm_mutex); + usx2y_subs_prepare(subs); + // Start hardware streams + // SyncStream first.... + if (atomic_read(&capsubs->state) < STATE_PREPARED) { + if (usx2y->format != runtime->format) { + err = usx2y_format_set(usx2y, runtime->format); + if (err < 0) + goto up_prepare_mutex; + } + if (usx2y->rate != runtime->rate) { + err = usx2y_rate_set(usx2y, runtime->rate); + if (err < 0) + goto up_prepare_mutex; + } + snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe"); + err = usx2y_urbs_start(capsubs); + if (err < 0) + goto up_prepare_mutex; + } + + if (subs != capsubs && atomic_read(&subs->state) < STATE_PREPARED) + err = usx2y_urbs_start(subs); + + up_prepare_mutex: + mutex_unlock(&usx2y->pcm_mutex); + return err; +} + +static const struct snd_pcm_hardware snd_usx2y_2c = { + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH), + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, + .rate_min = 44100, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = (2*128*1024), + .period_bytes_min = 64, + .period_bytes_max = (128*1024), + .periods_min = 2, + .periods_max = 1024, + .fifo_size = 0 +}; + +static int snd_usx2y_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_usx2y_substream *subs = + ((struct snd_usx2y_substream **) + snd_pcm_substream_chip(substream))[substream->stream]; + struct snd_pcm_runtime *runtime = substream->runtime; + + if (subs->usx2y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS) + return -EBUSY; + + runtime->hw = snd_usx2y_2c; + runtime->private_data = subs; + subs->pcm_substream = substream; + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000); + return 0; +} + +static int snd_usx2y_pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usx2y_substream *subs = runtime->private_data; + + subs->pcm_substream = NULL; + + return 0; +} + +static const struct snd_pcm_ops snd_usx2y_pcm_ops = { + .open = snd_usx2y_pcm_open, + .close = snd_usx2y_pcm_close, + .hw_params = snd_usx2y_pcm_hw_params, + .hw_free = snd_usx2y_pcm_hw_free, + .prepare = snd_usx2y_pcm_prepare, + .trigger = snd_usx2y_pcm_trigger, + .pointer = snd_usx2y_pcm_pointer, +}; + +/* + * free a usb stream instance + */ +static void usx2y_audio_stream_free(struct snd_usx2y_substream **usx2y_substream) +{ + int stream; + + for_each_pcm_streams(stream) { + kfree(usx2y_substream[stream]); + usx2y_substream[stream] = NULL; + } +} + +static void snd_usx2y_pcm_private_free(struct snd_pcm *pcm) +{ + struct snd_usx2y_substream **usx2y_stream = pcm->private_data; + + if (usx2y_stream) + usx2y_audio_stream_free(usx2y_stream); +} + +static int usx2y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint) +{ + struct snd_pcm *pcm; + int err, i; + struct snd_usx2y_substream **usx2y_substream = + usx2y(card)->subs + 2 * usx2y(card)->pcm_devs; + + for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; + i <= SNDRV_PCM_STREAM_CAPTURE; ++i) { + usx2y_substream[i] = kzalloc(sizeof(struct snd_usx2y_substream), GFP_KERNEL); + if (!usx2y_substream[i]) + return -ENOMEM; + + usx2y_substream[i]->usx2y = usx2y(card); + } + + if (playback_endpoint) + usx2y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint; + usx2y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint; + + err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usx2y(card)->pcm_devs, + playback_endpoint ? 1 : 0, 1, + &pcm); + if (err < 0) { + usx2y_audio_stream_free(usx2y_substream); + return err; + } + + if (playback_endpoint) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usx2y_pcm_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usx2y_pcm_ops); + + pcm->private_data = usx2y_substream; + pcm->private_free = snd_usx2y_pcm_private_free; + pcm->info_flags = 0; + + sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usx2y(card)->pcm_devs); + + if (playback_endpoint) { + snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, + SNDRV_DMA_TYPE_CONTINUOUS, + NULL, + 64*1024, 128*1024); + } + + snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, + SNDRV_DMA_TYPE_CONTINUOUS, + NULL, + 64*1024, 128*1024); + usx2y(card)->pcm_devs++; + + return 0; +} + +/* + * create a chip instance and set its names. + */ +int usx2y_audio_create(struct snd_card *card) +{ + int err; + + err = usx2y_audio_stream_new(card, 0xA, 0x8); + if (err < 0) + return err; + if (le16_to_cpu(usx2y(card)->dev->descriptor.idProduct) == USB_ID_US428) { + err = usx2y_audio_stream_new(card, 0, 0xA); + if (err < 0) + return err; + } + if (le16_to_cpu(usx2y(card)->dev->descriptor.idProduct) != USB_ID_US122) + err = usx2y_rate_set(usx2y(card), 44100); // Lets us428 recognize output-volume settings, disturbs us122. + return err; +} diff --git a/sound/usb/usx2y/usx2y.h b/sound/usb/usx2y/usx2y.h new file mode 100644 index 000000000..780071ddd --- /dev/null +++ b/sound/usb/usx2y/usx2y.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Driver for Tascam US-X2Y USB soundcards + * + * Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de> + */ + +#ifndef __SOUND_USX2Y_COMMON_H +#define __SOUND_USX2Y_COMMON_H + + +#define USX2Y_DRIVER_VERSION 0x0100 /* 0.1.0 */ + + +/* hwdep id string */ +#define SND_USX2Y_LOADER_ID "USX2Y Loader" +#define SND_USX2Y_USBPCM_ID "USX2Y USBPCM" + +/* hardware type */ +enum { + USX2Y_TYPE_122, + USX2Y_TYPE_224, + USX2Y_TYPE_428, + USX2Y_TYPE_NUMS +}; + +#define USB_ID_US122 0x8007 +#define USB_ID_US224 0x8005 +#define USB_ID_US428 0x8001 + +/* chip status */ +enum { + USX2Y_STAT_CHIP_INIT = (1 << 0), /* all operational */ + USX2Y_STAT_CHIP_MMAP_PCM_URBS = (1 << 1), /* pcm transport over mmaped urbs */ + USX2Y_STAT_CHIP_HUP = (1 << 31), /* all operational */ +}; + +#endif /* __SOUND_USX2Y_COMMON_H */ diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c new file mode 100644 index 000000000..767a227d5 --- /dev/null +++ b/sound/usb/usx2y/usx2yhwdeppcm.c @@ -0,0 +1,775 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + */ + +/* USX2Y "rawusb" aka hwdep_pcm implementation + + Its usb's unableness to atomically handle power of 2 period sized data chuncs + at standard samplerates, + what led to this part of the usx2y module: + It provides the alsa kernel half of the usx2y-alsa-jack driver pair. + The pair uses a hardware dependent alsa-device for mmaped pcm transport. + Advantage achieved: + The usb_hc moves pcm data from/into memory via DMA. + That memory is mmaped by jack's usx2y driver. + Jack's usx2y driver is the first/last to read/write pcm data. + Read/write is a combination of power of 2 period shaping and + float/int conversation. + Compared to mainline alsa/jack we leave out power of 2 period shaping inside + snd-usb-usx2y which needs memcpy() and additional buffers. + As a side effect possible unwanted pcm-data coruption resulting of + standard alsa's snd-usb-usx2y period shaping scheme falls away. + Result is sane jack operation at buffering schemes down to 128frames, + 2 periods. + plain usx2y alsa mode is able to achieve 64frames, 4periods, but only at the + cost of easier triggered i.e. aeolus xruns (128 or 256frames, + 2periods works but is useless cause of crackling). + + This is a first "proof of concept" implementation. + Later, functionalities should migrate to more appropriate places: + Userland: + - The jackd could mmap its float-pcm buffers directly from alsa-lib. + - alsa-lib could provide power of 2 period sized shaping combined with int/float + conversation. + Currently the usx2y jack driver provides above 2 services. + Kernel: + - rawusb dma pcm buffer transport should go to snd-usb-lib, so also snd-usb-audio + devices can use it. + Currently rawusb dma pcm buffer transport (this file) is only available to snd-usb-usx2y. +*/ + +#include <linux/delay.h> +#include <linux/gfp.h> +#include "usbusx2yaudio.c" + +#if defined(USX2Y_NRPACKS_VARIABLE) || USX2Y_NRPACKS == 1 + +#include <sound/hwdep.h> + +static int usx2y_usbpcm_urb_capt_retire(struct snd_usx2y_substream *subs) +{ + struct urb *urb = subs->completed_urb; + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + int i, lens = 0, hwptr_done = subs->hwptr_done; + struct usx2ydev *usx2y = subs->usx2y; + int head; + + if (usx2y->hwdep_pcm_shm->capture_iso_start < 0) { //FIXME + head = usx2y->hwdep_pcm_shm->captured_iso_head + 1; + if (head >= ARRAY_SIZE(usx2y->hwdep_pcm_shm->captured_iso)) + head = 0; + usx2y->hwdep_pcm_shm->capture_iso_start = head; + snd_printdd("cap start %i\n", head); + } + for (i = 0; i < nr_of_packs(); i++) { + if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */ + snd_printk(KERN_ERR + "active frame status %i. Most probably some hardware problem.\n", + urb->iso_frame_desc[i].status); + return urb->iso_frame_desc[i].status; + } + lens += urb->iso_frame_desc[i].actual_length / usx2y->stride; + } + hwptr_done += lens; + if (hwptr_done >= runtime->buffer_size) + hwptr_done -= runtime->buffer_size; + subs->hwptr_done = hwptr_done; + subs->transfer_done += lens; + /* update the pointer, call callback if necessary */ + if (subs->transfer_done >= runtime->period_size) { + subs->transfer_done -= runtime->period_size; + snd_pcm_period_elapsed(subs->pcm_substream); + } + return 0; +} + +static int usx2y_iso_frames_per_buffer(struct snd_pcm_runtime *runtime, + struct usx2ydev *usx2y) +{ + return (runtime->buffer_size * 1000) / usx2y->rate + 1; //FIXME: so far only correct period_size == 2^x ? +} + +/* + * prepare urb for playback data pipe + * + * we copy the data directly from the pcm buffer. + * the current position to be copied is held in hwptr field. + * since a urb can handle only a single linear buffer, if the total + * transferred area overflows the buffer boundary, we cannot send + * it directly from the buffer. thus the data is once copied to + * a temporary buffer and urb points to that. + */ +static int usx2y_hwdep_urb_play_prepare(struct snd_usx2y_substream *subs, + struct urb *urb) +{ + int count, counts, pack; + struct usx2ydev *usx2y = subs->usx2y; + struct snd_usx2y_hwdep_pcm_shm *shm = usx2y->hwdep_pcm_shm; + struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; + + if (shm->playback_iso_start < 0) { + shm->playback_iso_start = shm->captured_iso_head - + usx2y_iso_frames_per_buffer(runtime, usx2y); + if (shm->playback_iso_start < 0) + shm->playback_iso_start += ARRAY_SIZE(shm->captured_iso); + shm->playback_iso_head = shm->playback_iso_start; + } + + count = 0; + for (pack = 0; pack < nr_of_packs(); pack++) { + /* calculate the size of a packet */ + counts = shm->captured_iso[shm->playback_iso_head].length / usx2y->stride; + if (counts < 43 || counts > 50) { + snd_printk(KERN_ERR "should not be here with counts=%i\n", counts); + return -EPIPE; + } + /* set up descriptor */ + urb->iso_frame_desc[pack].offset = shm->captured_iso[shm->playback_iso_head].offset; + urb->iso_frame_desc[pack].length = shm->captured_iso[shm->playback_iso_head].length; + if (atomic_read(&subs->state) != STATE_RUNNING) + memset((char *)urb->transfer_buffer + urb->iso_frame_desc[pack].offset, 0, + urb->iso_frame_desc[pack].length); + if (++shm->playback_iso_head >= ARRAY_SIZE(shm->captured_iso)) + shm->playback_iso_head = 0; + count += counts; + } + urb->transfer_buffer_length = count * usx2y->stride; + return 0; +} + +static void usx2y_usbpcm_urb_capt_iso_advance(struct snd_usx2y_substream *subs, + struct urb *urb) +{ + struct usb_iso_packet_descriptor *desc; + struct snd_usx2y_hwdep_pcm_shm *shm; + int pack, head; + + for (pack = 0; pack < nr_of_packs(); ++pack) { + desc = urb->iso_frame_desc + pack; + if (subs) { + shm = subs->usx2y->hwdep_pcm_shm; + head = shm->captured_iso_head + 1; + if (head >= ARRAY_SIZE(shm->captured_iso)) + head = 0; + shm->captured_iso[head].frame = urb->start_frame + pack; + shm->captured_iso[head].offset = desc->offset; + shm->captured_iso[head].length = desc->actual_length; + shm->captured_iso_head = head; + shm->captured_iso_frames++; + } + desc->offset += desc->length * NRURBS * nr_of_packs(); + if (desc->offset + desc->length >= SSS) + desc->offset -= (SSS - desc->length); + } +} + +static int usx2y_usbpcm_usbframe_complete(struct snd_usx2y_substream *capsubs, + struct snd_usx2y_substream *capsubs2, + struct snd_usx2y_substream *playbacksubs, + int frame) +{ + int err, state; + struct urb *urb = playbacksubs->completed_urb; + + state = atomic_read(&playbacksubs->state); + if (urb) { + if (state == STATE_RUNNING) + usx2y_urb_play_retire(playbacksubs, urb); + else if (state >= STATE_PRERUNNING) + atomic_inc(&playbacksubs->state); + } else { + switch (state) { + case STATE_STARTING1: + urb = playbacksubs->urb[0]; + atomic_inc(&playbacksubs->state); + break; + case STATE_STARTING2: + urb = playbacksubs->urb[1]; + atomic_inc(&playbacksubs->state); + break; + } + } + if (urb) { + err = usx2y_hwdep_urb_play_prepare(playbacksubs, urb); + if (err) + return err; + err = usx2y_hwdep_urb_play_prepare(playbacksubs, urb); + if (err) + return err; + } + + playbacksubs->completed_urb = NULL; + + state = atomic_read(&capsubs->state); + if (state >= STATE_PREPARED) { + if (state == STATE_RUNNING) { + err = usx2y_usbpcm_urb_capt_retire(capsubs); + if (err) + return err; + } else if (state >= STATE_PRERUNNING) { + atomic_inc(&capsubs->state); + } + usx2y_usbpcm_urb_capt_iso_advance(capsubs, capsubs->completed_urb); + if (capsubs2) + usx2y_usbpcm_urb_capt_iso_advance(NULL, capsubs2->completed_urb); + err = usx2y_urb_submit(capsubs, capsubs->completed_urb, frame); + if (err) + return err; + if (capsubs2) { + err = usx2y_urb_submit(capsubs2, capsubs2->completed_urb, frame); + if (err) + return err; + } + } + capsubs->completed_urb = NULL; + if (capsubs2) + capsubs2->completed_urb = NULL; + return 0; +} + +static void i_usx2y_usbpcm_urb_complete(struct urb *urb) +{ + struct snd_usx2y_substream *subs = urb->context; + struct usx2ydev *usx2y = subs->usx2y; + struct snd_usx2y_substream *capsubs, *capsubs2, *playbacksubs; + + if (unlikely(atomic_read(&subs->state) < STATE_PREPARED)) { + snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", + usb_get_current_frame_number(usx2y->dev), + subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", + urb->status, urb->start_frame); + return; + } + if (unlikely(urb->status)) { + usx2y_error_urb_status(usx2y, subs, urb); + return; + } + + subs->completed_urb = urb; + capsubs = usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]; + capsubs2 = usx2y->subs[SNDRV_PCM_STREAM_CAPTURE + 2]; + playbacksubs = usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]; + if (capsubs->completed_urb && atomic_read(&capsubs->state) >= STATE_PREPARED && + (!capsubs2 || capsubs2->completed_urb) && + (playbacksubs->completed_urb || atomic_read(&playbacksubs->state) < STATE_PREPARED)) { + if (!usx2y_usbpcm_usbframe_complete(capsubs, capsubs2, playbacksubs, urb->start_frame)) { + usx2y->wait_iso_frame += nr_of_packs(); + } else { + snd_printdd("\n"); + usx2y_clients_stop(usx2y); + } + } +} + +static void usx2y_hwdep_urb_release(struct urb **urb) +{ + usb_kill_urb(*urb); + usb_free_urb(*urb); + *urb = NULL; +} + +/* + * release a substream + */ +static void usx2y_usbpcm_urbs_release(struct snd_usx2y_substream *subs) +{ + int i; + + snd_printdd("snd_usx2y_urbs_release() %i\n", subs->endpoint); + for (i = 0; i < NRURBS; i++) + usx2y_hwdep_urb_release(subs->urb + i); +} + +static void usx2y_usbpcm_subs_startup_finish(struct usx2ydev *usx2y) +{ + usx2y_urbs_set_complete(usx2y, i_usx2y_usbpcm_urb_complete); + usx2y->prepare_subs = NULL; +} + +static void i_usx2y_usbpcm_subs_startup(struct urb *urb) +{ + struct snd_usx2y_substream *subs = urb->context; + struct usx2ydev *usx2y = subs->usx2y; + struct snd_usx2y_substream *prepare_subs = usx2y->prepare_subs; + struct snd_usx2y_substream *cap_subs2; + + if (prepare_subs && + urb->start_frame == prepare_subs->urb[0]->start_frame) { + atomic_inc(&prepare_subs->state); + if (prepare_subs == usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]) { + cap_subs2 = usx2y->subs[SNDRV_PCM_STREAM_CAPTURE + 2]; + if (cap_subs2) + atomic_inc(&cap_subs2->state); + } + usx2y_usbpcm_subs_startup_finish(usx2y); + wake_up(&usx2y->prepare_wait_queue); + } + + i_usx2y_usbpcm_urb_complete(urb); +} + +/* + * initialize a substream's urbs + */ +static int usx2y_usbpcm_urbs_allocate(struct snd_usx2y_substream *subs) +{ + int i; + unsigned int pipe; + int is_playback = subs == subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]; + struct usb_device *dev = subs->usx2y->dev; + struct urb **purb; + + pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) : + usb_rcvisocpipe(dev, subs->endpoint); + subs->maxpacksize = usb_maxpacket(dev, pipe); + if (!subs->maxpacksize) + return -EINVAL; + + /* allocate and initialize data urbs */ + for (i = 0; i < NRURBS; i++) { + purb = subs->urb + i; + if (*purb) { + usb_kill_urb(*purb); + continue; + } + *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL); + if (!*purb) { + usx2y_usbpcm_urbs_release(subs); + return -ENOMEM; + } + (*purb)->transfer_buffer = is_playback ? + subs->usx2y->hwdep_pcm_shm->playback : ( + subs->endpoint == 0x8 ? + subs->usx2y->hwdep_pcm_shm->capture0x8 : + subs->usx2y->hwdep_pcm_shm->capture0xA); + + (*purb)->dev = dev; + (*purb)->pipe = pipe; + (*purb)->number_of_packets = nr_of_packs(); + (*purb)->context = subs; + (*purb)->interval = 1; + (*purb)->complete = i_usx2y_usbpcm_subs_startup; + } + return 0; +} + +/* + * free the buffer + */ +static int snd_usx2y_usbpcm_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usx2y_substream *subs = runtime->private_data; + struct snd_usx2y_substream *cap_subs; + struct snd_usx2y_substream *playback_subs; + struct snd_usx2y_substream *cap_subs2; + + mutex_lock(&subs->usx2y->pcm_mutex); + snd_printdd("%s(%p)\n", __func__, substream); + + cap_subs2 = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE + 2]; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + cap_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]; + atomic_set(&subs->state, STATE_STOPPED); + usx2y_usbpcm_urbs_release(subs); + if (!cap_subs->pcm_substream || + !cap_subs->pcm_substream->runtime || + cap_subs->pcm_substream->runtime->state < SNDRV_PCM_STATE_PREPARED) { + atomic_set(&cap_subs->state, STATE_STOPPED); + if (cap_subs2) + atomic_set(&cap_subs2->state, STATE_STOPPED); + usx2y_usbpcm_urbs_release(cap_subs); + if (cap_subs2) + usx2y_usbpcm_urbs_release(cap_subs2); + } + } else { + playback_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]; + if (atomic_read(&playback_subs->state) < STATE_PREPARED) { + atomic_set(&subs->state, STATE_STOPPED); + if (cap_subs2) + atomic_set(&cap_subs2->state, STATE_STOPPED); + usx2y_usbpcm_urbs_release(subs); + if (cap_subs2) + usx2y_usbpcm_urbs_release(cap_subs2); + } + } + mutex_unlock(&subs->usx2y->pcm_mutex); + return 0; +} + +static void usx2y_usbpcm_subs_startup(struct snd_usx2y_substream *subs) +{ + struct usx2ydev *usx2y = subs->usx2y; + + usx2y->prepare_subs = subs; + subs->urb[0]->start_frame = -1; + smp_wmb(); // Make sure above modifications are seen by i_usx2y_subs_startup() + usx2y_urbs_set_complete(usx2y, i_usx2y_usbpcm_subs_startup); +} + +static int usx2y_usbpcm_urbs_start(struct snd_usx2y_substream *subs) +{ + int p, u, err, stream = subs->pcm_substream->stream; + struct usx2ydev *usx2y = subs->usx2y; + struct urb *urb; + unsigned long pack; + + if (stream == SNDRV_PCM_STREAM_CAPTURE) { + usx2y->hwdep_pcm_shm->captured_iso_head = -1; + usx2y->hwdep_pcm_shm->captured_iso_frames = 0; + } + + for (p = 0; 3 >= (stream + p); p += 2) { + struct snd_usx2y_substream *subs = usx2y->subs[stream + p]; + if (subs) { + err = usx2y_usbpcm_urbs_allocate(subs); + if (err < 0) + return err; + subs->completed_urb = NULL; + } + } + + for (p = 0; p < 4; p++) { + struct snd_usx2y_substream *subs = usx2y->subs[p]; + + if (subs && atomic_read(&subs->state) >= STATE_PREPARED) + goto start; + } + + start: + usx2y_usbpcm_subs_startup(subs); + for (u = 0; u < NRURBS; u++) { + for (p = 0; 3 >= (stream + p); p += 2) { + struct snd_usx2y_substream *subs = usx2y->subs[stream + p]; + + if (!subs) + continue; + urb = subs->urb[u]; + if (usb_pipein(urb->pipe)) { + if (!u) + atomic_set(&subs->state, STATE_STARTING3); + urb->dev = usx2y->dev; + for (pack = 0; pack < nr_of_packs(); pack++) { + urb->iso_frame_desc[pack].offset = subs->maxpacksize * (pack + u * nr_of_packs()); + urb->iso_frame_desc[pack].length = subs->maxpacksize; + } + urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); + err = usb_submit_urb(urb, GFP_KERNEL); + if (err < 0) { + snd_printk(KERN_ERR "cannot usb_submit_urb() for urb %d, err = %d\n", u, err); + err = -EPIPE; + goto cleanup; + } else { + snd_printdd("%i\n", urb->start_frame); + if (!u) + usx2y->wait_iso_frame = urb->start_frame; + } + urb->transfer_flags = 0; + } else { + atomic_set(&subs->state, STATE_STARTING1); + break; + } + } + } + err = 0; + wait_event(usx2y->prepare_wait_queue, !usx2y->prepare_subs); + if (atomic_read(&subs->state) != STATE_PREPARED) + err = -EPIPE; + + cleanup: + if (err) { + usx2y_subs_startup_finish(usx2y); // Call it now + usx2y_clients_stop(usx2y); // something is completely wrong > stop everything + } + return err; +} + +#define USX2Y_HWDEP_PCM_PAGES \ + PAGE_ALIGN(sizeof(struct snd_usx2y_hwdep_pcm_shm)) + +/* + * prepare callback + * + * set format and initialize urbs + */ +static int snd_usx2y_usbpcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usx2y_substream *subs = runtime->private_data; + struct usx2ydev *usx2y = subs->usx2y; + struct snd_usx2y_substream *capsubs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]; + int err = 0; + + snd_printdd("snd_usx2y_pcm_prepare(%p)\n", substream); + + mutex_lock(&usx2y->pcm_mutex); + + if (!usx2y->hwdep_pcm_shm) { + usx2y->hwdep_pcm_shm = alloc_pages_exact(USX2Y_HWDEP_PCM_PAGES, + GFP_KERNEL); + if (!usx2y->hwdep_pcm_shm) { + err = -ENOMEM; + goto up_prepare_mutex; + } + memset(usx2y->hwdep_pcm_shm, 0, USX2Y_HWDEP_PCM_PAGES); + } + + usx2y_subs_prepare(subs); + // Start hardware streams + // SyncStream first.... + if (atomic_read(&capsubs->state) < STATE_PREPARED) { + if (usx2y->format != runtime->format) { + err = usx2y_format_set(usx2y, runtime->format); + if (err < 0) + goto up_prepare_mutex; + } + if (usx2y->rate != runtime->rate) { + err = usx2y_rate_set(usx2y, runtime->rate); + if (err < 0) + goto up_prepare_mutex; + } + snd_printdd("starting capture pipe for %s\n", subs == capsubs ? + "self" : "playpipe"); + err = usx2y_usbpcm_urbs_start(capsubs); + if (err < 0) + goto up_prepare_mutex; + } + + if (subs != capsubs) { + usx2y->hwdep_pcm_shm->playback_iso_start = -1; + if (atomic_read(&subs->state) < STATE_PREPARED) { + while (usx2y_iso_frames_per_buffer(runtime, usx2y) > + usx2y->hwdep_pcm_shm->captured_iso_frames) { + snd_printdd("Wait: iso_frames_per_buffer=%i,captured_iso_frames=%i\n", + usx2y_iso_frames_per_buffer(runtime, usx2y), + usx2y->hwdep_pcm_shm->captured_iso_frames); + if (msleep_interruptible(10)) { + err = -ERESTARTSYS; + goto up_prepare_mutex; + } + } + err = usx2y_usbpcm_urbs_start(subs); + if (err < 0) + goto up_prepare_mutex; + } + snd_printdd("Ready: iso_frames_per_buffer=%i,captured_iso_frames=%i\n", + usx2y_iso_frames_per_buffer(runtime, usx2y), + usx2y->hwdep_pcm_shm->captured_iso_frames); + } else { + usx2y->hwdep_pcm_shm->capture_iso_start = -1; + } + + up_prepare_mutex: + mutex_unlock(&usx2y->pcm_mutex); + return err; +} + +static const struct snd_pcm_hardware snd_usx2y_4c = { + .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID), + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, + .rate_min = 44100, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 4, + .buffer_bytes_max = (2*128*1024), + .period_bytes_min = 64, + .period_bytes_max = (128*1024), + .periods_min = 2, + .periods_max = 1024, + .fifo_size = 0 +}; + +static int snd_usx2y_usbpcm_open(struct snd_pcm_substream *substream) +{ + struct snd_usx2y_substream *subs = + ((struct snd_usx2y_substream **) + snd_pcm_substream_chip(substream))[substream->stream]; + struct snd_pcm_runtime *runtime = substream->runtime; + + if (!(subs->usx2y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS)) + return -EBUSY; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + runtime->hw = snd_usx2y_2c; + else + runtime->hw = (subs->usx2y->subs[3] ? snd_usx2y_4c : snd_usx2y_2c); + runtime->private_data = subs; + subs->pcm_substream = substream; + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000); + return 0; +} + +static int snd_usx2y_usbpcm_close(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_usx2y_substream *subs = runtime->private_data; + + subs->pcm_substream = NULL; + return 0; +} + +static const struct snd_pcm_ops snd_usx2y_usbpcm_ops = { + .open = snd_usx2y_usbpcm_open, + .close = snd_usx2y_usbpcm_close, + .hw_params = snd_usx2y_pcm_hw_params, + .hw_free = snd_usx2y_usbpcm_hw_free, + .prepare = snd_usx2y_usbpcm_prepare, + .trigger = snd_usx2y_pcm_trigger, + .pointer = snd_usx2y_pcm_pointer, +}; + +static int usx2y_pcms_busy_check(struct snd_card *card) +{ + struct usx2ydev *dev = usx2y(card); + struct snd_usx2y_substream *subs; + int i; + + for (i = 0; i < dev->pcm_devs * 2; i++) { + subs = dev->subs[i]; + if (subs && subs->pcm_substream && + SUBSTREAM_BUSY(subs->pcm_substream)) + return -EBUSY; + } + return 0; +} + +static int snd_usx2y_hwdep_pcm_open(struct snd_hwdep *hw, struct file *file) +{ + struct snd_card *card = hw->card; + int err; + + mutex_lock(&usx2y(card)->pcm_mutex); + err = usx2y_pcms_busy_check(card); + if (!err) + usx2y(card)->chip_status |= USX2Y_STAT_CHIP_MMAP_PCM_URBS; + mutex_unlock(&usx2y(card)->pcm_mutex); + return err; +} + +static int snd_usx2y_hwdep_pcm_release(struct snd_hwdep *hw, struct file *file) +{ + struct snd_card *card = hw->card; + int err; + + mutex_lock(&usx2y(card)->pcm_mutex); + err = usx2y_pcms_busy_check(card); + if (!err) + usx2y(hw->card)->chip_status &= ~USX2Y_STAT_CHIP_MMAP_PCM_URBS; + mutex_unlock(&usx2y(card)->pcm_mutex); + return err; +} + +static void snd_usx2y_hwdep_pcm_vm_open(struct vm_area_struct *area) +{ +} + +static void snd_usx2y_hwdep_pcm_vm_close(struct vm_area_struct *area) +{ +} + +static vm_fault_t snd_usx2y_hwdep_pcm_vm_fault(struct vm_fault *vmf) +{ + unsigned long offset; + void *vaddr; + + offset = vmf->pgoff << PAGE_SHIFT; + vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->hwdep_pcm_shm + offset; + vmf->page = virt_to_page(vaddr); + get_page(vmf->page); + return 0; +} + +static const struct vm_operations_struct snd_usx2y_hwdep_pcm_vm_ops = { + .open = snd_usx2y_hwdep_pcm_vm_open, + .close = snd_usx2y_hwdep_pcm_vm_close, + .fault = snd_usx2y_hwdep_pcm_vm_fault, +}; + +static int snd_usx2y_hwdep_pcm_mmap(struct snd_hwdep *hw, struct file *filp, struct vm_area_struct *area) +{ + unsigned long size = (unsigned long)(area->vm_end - area->vm_start); + struct usx2ydev *usx2y = hw->private_data; + + if (!(usx2y->chip_status & USX2Y_STAT_CHIP_INIT)) + return -EBUSY; + + /* if userspace tries to mmap beyond end of our buffer, fail */ + if (size > USX2Y_HWDEP_PCM_PAGES) { + snd_printd("%lu > %lu\n", size, (unsigned long)USX2Y_HWDEP_PCM_PAGES); + return -EINVAL; + } + + if (!usx2y->hwdep_pcm_shm) + return -ENODEV; + + area->vm_ops = &snd_usx2y_hwdep_pcm_vm_ops; + area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; + area->vm_private_data = hw->private_data; + return 0; +} + +static void snd_usx2y_hwdep_pcm_private_free(struct snd_hwdep *hwdep) +{ + struct usx2ydev *usx2y = hwdep->private_data; + + if (usx2y->hwdep_pcm_shm) + free_pages_exact(usx2y->hwdep_pcm_shm, USX2Y_HWDEP_PCM_PAGES); +} + +int usx2y_hwdep_pcm_new(struct snd_card *card) +{ + int err; + struct snd_hwdep *hw; + struct snd_pcm *pcm; + struct usb_device *dev = usx2y(card)->dev; + + if (nr_of_packs() != 1) + return 0; + + err = snd_hwdep_new(card, SND_USX2Y_USBPCM_ID, 1, &hw); + if (err < 0) + return err; + + hw->iface = SNDRV_HWDEP_IFACE_USX2Y_PCM; + hw->private_data = usx2y(card); + hw->private_free = snd_usx2y_hwdep_pcm_private_free; + hw->ops.open = snd_usx2y_hwdep_pcm_open; + hw->ops.release = snd_usx2y_hwdep_pcm_release; + hw->ops.mmap = snd_usx2y_hwdep_pcm_mmap; + hw->exclusive = 1; + sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm", dev->bus->busnum, dev->devnum); + + err = snd_pcm_new(card, NAME_ALLCAPS" hwdep Audio", 2, 1, 1, &pcm); + if (err < 0) + return err; + + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usx2y_usbpcm_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usx2y_usbpcm_ops); + + pcm->private_data = usx2y(card)->subs; + pcm->info_flags = 0; + + sprintf(pcm->name, NAME_ALLCAPS" hwdep Audio"); + snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, + SNDRV_DMA_TYPE_CONTINUOUS, + NULL, + 64*1024, 128*1024); + snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, + SNDRV_DMA_TYPE_CONTINUOUS, + NULL, + 64*1024, 128*1024); + + return 0; +} + +#else + +int usx2y_hwdep_pcm_new(struct snd_card *card) +{ + return 0; +} + +#endif diff --git a/sound/usb/usx2y/usx2yhwdeppcm.h b/sound/usb/usx2y/usx2yhwdeppcm.h new file mode 100644 index 000000000..731b1c5a3 --- /dev/null +++ b/sound/usb/usx2y/usx2yhwdeppcm.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#define MAXPACK 50 +#define MAXBUFFERMS 100 +#define MAXSTRIDE 3 + +#define SSS (((MAXPACK*MAXBUFFERMS*MAXSTRIDE + 4096) / 4096) * 4096) +struct snd_usx2y_hwdep_pcm_shm { + char playback[SSS]; + char capture0x8[SSS]; + char capture0xA[SSS]; + volatile int playback_iso_head; + int playback_iso_start; + struct { + int frame, + offset, + length; + } captured_iso[128]; + volatile int captured_iso_head; + volatile unsigned captured_iso_frames; + int capture_iso_start; +}; + +int usx2y_hwdep_pcm_new(struct snd_card *card); diff --git a/sound/usb/validate.c b/sound/usb/validate.c new file mode 100644 index 000000000..6fe206f6e --- /dev/null +++ b/sound/usb/validate.c @@ -0,0 +1,349 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +// +// Validation of USB-audio class descriptors +// + +#include <linux/init.h> +#include <linux/usb.h> +#include <linux/usb/audio.h> +#include <linux/usb/audio-v2.h> +#include <linux/usb/audio-v3.h> +#include <linux/usb/midi.h> +#include "usbaudio.h" +#include "helper.h" + +struct usb_desc_validator { + unsigned char protocol; + unsigned char type; + bool (*func)(const void *p, const struct usb_desc_validator *v); + size_t size; +}; + +#define UAC_VERSION_ALL (unsigned char)(-1) + +/* UAC1 only */ +static bool validate_uac1_header(const void *p, + const struct usb_desc_validator *v) +{ + const struct uac1_ac_header_descriptor *d = p; + + return d->bLength >= sizeof(*d) && + d->bLength >= sizeof(*d) + d->bInCollection; +} + +/* for mixer unit; covering all UACs */ +static bool validate_mixer_unit(const void *p, + const struct usb_desc_validator *v) +{ + const struct uac_mixer_unit_descriptor *d = p; + size_t len; + + if (d->bLength < sizeof(*d) || !d->bNrInPins) + return false; + len = sizeof(*d) + d->bNrInPins; + /* We can't determine the bitmap size only from this unit descriptor, + * so just check with the remaining length. + * The actual bitmap is checked at mixer unit parser. + */ + switch (v->protocol) { + case UAC_VERSION_1: + default: + len += 2 + 1; /* wChannelConfig, iChannelNames */ + /* bmControls[n*m] */ + len += 1; /* iMixer */ + break; + case UAC_VERSION_2: + len += 4 + 1; /* bmChannelConfig, iChannelNames */ + /* bmMixerControls[n*m] */ + len += 1 + 1; /* bmControls, iMixer */ + break; + case UAC_VERSION_3: + len += 2; /* wClusterDescrID */ + /* bmMixerControls[n*m] */ + break; + } + return d->bLength >= len; +} + +/* both for processing and extension units; covering all UACs */ +static bool validate_processing_unit(const void *p, + const struct usb_desc_validator *v) +{ + const struct uac_processing_unit_descriptor *d = p; + const unsigned char *hdr = p; + size_t len, m; + + if (d->bLength < sizeof(*d)) + return false; + len = sizeof(*d) + d->bNrInPins; + if (d->bLength < len) + return false; + switch (v->protocol) { + case UAC_VERSION_1: + default: + /* bNrChannels, wChannelConfig, iChannelNames */ + len += 1 + 2 + 1; + if (d->bLength < len + 1) /* bControlSize */ + return false; + m = hdr[len]; + len += 1 + m + 1; /* bControlSize, bmControls, iProcessing */ + break; + case UAC_VERSION_2: + /* bNrChannels, bmChannelConfig, iChannelNames */ + len += 1 + 4 + 1; + if (v->type == UAC2_PROCESSING_UNIT_V2) + len += 2; /* bmControls -- 2 bytes for PU */ + else + len += 1; /* bmControls -- 1 byte for EU */ + len += 1; /* iProcessing */ + break; + case UAC_VERSION_3: + /* wProcessingDescrStr, bmControls */ + len += 2 + 4; + break; + } + if (d->bLength < len) + return false; + + switch (v->protocol) { + case UAC_VERSION_1: + default: + if (v->type == UAC1_EXTENSION_UNIT) + return true; /* OK */ + switch (le16_to_cpu(d->wProcessType)) { + case UAC_PROCESS_UP_DOWNMIX: + case UAC_PROCESS_DOLBY_PROLOGIC: + if (d->bLength < len + 1) /* bNrModes */ + return false; + m = hdr[len]; + len += 1 + m * 2; /* bNrModes, waModes(n) */ + break; + default: + break; + } + break; + case UAC_VERSION_2: + if (v->type == UAC2_EXTENSION_UNIT_V2) + return true; /* OK */ + switch (le16_to_cpu(d->wProcessType)) { + case UAC2_PROCESS_UP_DOWNMIX: + case UAC2_PROCESS_DOLBY_PROLOCIC: /* SiC! */ + if (d->bLength < len + 1) /* bNrModes */ + return false; + m = hdr[len]; + len += 1 + m * 4; /* bNrModes, daModes(n) */ + break; + default: + break; + } + break; + case UAC_VERSION_3: + if (v->type == UAC3_EXTENSION_UNIT) { + len += 2; /* wClusterDescrID */ + break; + } + switch (le16_to_cpu(d->wProcessType)) { + case UAC3_PROCESS_UP_DOWNMIX: + if (d->bLength < len + 1) /* bNrModes */ + return false; + m = hdr[len]; + len += 1 + m * 2; /* bNrModes, waClusterDescrID(n) */ + break; + case UAC3_PROCESS_MULTI_FUNCTION: + len += 2 + 4; /* wClusterDescrID, bmAlgorighms */ + break; + default: + break; + } + break; + } + if (d->bLength < len) + return false; + + return true; +} + +/* both for selector and clock selector units; covering all UACs */ +static bool validate_selector_unit(const void *p, + const struct usb_desc_validator *v) +{ + const struct uac_selector_unit_descriptor *d = p; + size_t len; + + if (d->bLength < sizeof(*d)) + return false; + len = sizeof(*d) + d->bNrInPins; + switch (v->protocol) { + case UAC_VERSION_1: + default: + len += 1; /* iSelector */ + break; + case UAC_VERSION_2: + len += 1 + 1; /* bmControls, iSelector */ + break; + case UAC_VERSION_3: + len += 4 + 2; /* bmControls, wSelectorDescrStr */ + break; + } + return d->bLength >= len; +} + +static bool validate_uac1_feature_unit(const void *p, + const struct usb_desc_validator *v) +{ + const struct uac_feature_unit_descriptor *d = p; + + if (d->bLength < sizeof(*d) || !d->bControlSize) + return false; + /* at least bmaControls(0) for master channel + iFeature */ + return d->bLength >= sizeof(*d) + d->bControlSize + 1; +} + +static bool validate_uac2_feature_unit(const void *p, + const struct usb_desc_validator *v) +{ + const struct uac2_feature_unit_descriptor *d = p; + + if (d->bLength < sizeof(*d)) + return false; + /* at least bmaControls(0) for master channel + iFeature */ + return d->bLength >= sizeof(*d) + 4 + 1; +} + +static bool validate_uac3_feature_unit(const void *p, + const struct usb_desc_validator *v) +{ + const struct uac3_feature_unit_descriptor *d = p; + + if (d->bLength < sizeof(*d)) + return false; + /* at least bmaControls(0) for master channel + wFeatureDescrStr */ + return d->bLength >= sizeof(*d) + 4 + 2; +} + +static bool validate_midi_out_jack(const void *p, + const struct usb_desc_validator *v) +{ + const struct usb_midi_out_jack_descriptor *d = p; + + return d->bLength >= sizeof(*d) && + d->bLength >= sizeof(*d) + d->bNrInputPins * 2; +} + +#define FIXED(p, t, s) { .protocol = (p), .type = (t), .size = sizeof(s) } +#define FUNC(p, t, f) { .protocol = (p), .type = (t), .func = (f) } + +static const struct usb_desc_validator audio_validators[] = { + /* UAC1 */ + FUNC(UAC_VERSION_1, UAC_HEADER, validate_uac1_header), + FIXED(UAC_VERSION_1, UAC_INPUT_TERMINAL, + struct uac_input_terminal_descriptor), + FIXED(UAC_VERSION_1, UAC_OUTPUT_TERMINAL, + struct uac1_output_terminal_descriptor), + FUNC(UAC_VERSION_1, UAC_MIXER_UNIT, validate_mixer_unit), + FUNC(UAC_VERSION_1, UAC_SELECTOR_UNIT, validate_selector_unit), + FUNC(UAC_VERSION_1, UAC_FEATURE_UNIT, validate_uac1_feature_unit), + FUNC(UAC_VERSION_1, UAC1_PROCESSING_UNIT, validate_processing_unit), + FUNC(UAC_VERSION_1, UAC1_EXTENSION_UNIT, validate_processing_unit), + + /* UAC2 */ + FIXED(UAC_VERSION_2, UAC_HEADER, struct uac2_ac_header_descriptor), + FIXED(UAC_VERSION_2, UAC_INPUT_TERMINAL, + struct uac2_input_terminal_descriptor), + FIXED(UAC_VERSION_2, UAC_OUTPUT_TERMINAL, + struct uac2_output_terminal_descriptor), + FUNC(UAC_VERSION_2, UAC_MIXER_UNIT, validate_mixer_unit), + FUNC(UAC_VERSION_2, UAC_SELECTOR_UNIT, validate_selector_unit), + FUNC(UAC_VERSION_2, UAC_FEATURE_UNIT, validate_uac2_feature_unit), + /* UAC_VERSION_2, UAC2_EFFECT_UNIT: not implemented yet */ + FUNC(UAC_VERSION_2, UAC2_PROCESSING_UNIT_V2, validate_processing_unit), + FUNC(UAC_VERSION_2, UAC2_EXTENSION_UNIT_V2, validate_processing_unit), + FIXED(UAC_VERSION_2, UAC2_CLOCK_SOURCE, + struct uac_clock_source_descriptor), + FUNC(UAC_VERSION_2, UAC2_CLOCK_SELECTOR, validate_selector_unit), + FIXED(UAC_VERSION_2, UAC2_CLOCK_MULTIPLIER, + struct uac_clock_multiplier_descriptor), + /* UAC_VERSION_2, UAC2_SAMPLE_RATE_CONVERTER: not implemented yet */ + + /* UAC3 */ + FIXED(UAC_VERSION_2, UAC_HEADER, struct uac3_ac_header_descriptor), + FIXED(UAC_VERSION_3, UAC_INPUT_TERMINAL, + struct uac3_input_terminal_descriptor), + FIXED(UAC_VERSION_3, UAC_OUTPUT_TERMINAL, + struct uac3_output_terminal_descriptor), + /* UAC_VERSION_3, UAC3_EXTENDED_TERMINAL: not implemented yet */ + FUNC(UAC_VERSION_3, UAC3_MIXER_UNIT, validate_mixer_unit), + FUNC(UAC_VERSION_3, UAC3_SELECTOR_UNIT, validate_selector_unit), + FUNC(UAC_VERSION_3, UAC_FEATURE_UNIT, validate_uac3_feature_unit), + /* UAC_VERSION_3, UAC3_EFFECT_UNIT: not implemented yet */ + FUNC(UAC_VERSION_3, UAC3_PROCESSING_UNIT, validate_processing_unit), + FUNC(UAC_VERSION_3, UAC3_EXTENSION_UNIT, validate_processing_unit), + FIXED(UAC_VERSION_3, UAC3_CLOCK_SOURCE, + struct uac3_clock_source_descriptor), + FUNC(UAC_VERSION_3, UAC3_CLOCK_SELECTOR, validate_selector_unit), + FIXED(UAC_VERSION_3, UAC3_CLOCK_MULTIPLIER, + struct uac3_clock_multiplier_descriptor), + /* UAC_VERSION_3, UAC3_SAMPLE_RATE_CONVERTER: not implemented yet */ + /* UAC_VERSION_3, UAC3_CONNECTORS: not implemented yet */ + { } /* terminator */ +}; + +static const struct usb_desc_validator midi_validators[] = { + FIXED(UAC_VERSION_ALL, USB_MS_HEADER, + struct usb_ms_header_descriptor), + FIXED(UAC_VERSION_ALL, USB_MS_MIDI_IN_JACK, + struct usb_midi_in_jack_descriptor), + FUNC(UAC_VERSION_ALL, USB_MS_MIDI_OUT_JACK, + validate_midi_out_jack), + { } /* terminator */ +}; + + +/* Validate the given unit descriptor, return true if it's OK */ +static bool validate_desc(unsigned char *hdr, int protocol, + const struct usb_desc_validator *v) +{ + if (hdr[1] != USB_DT_CS_INTERFACE) + return true; /* don't care */ + + for (; v->type; v++) { + if (v->type == hdr[2] && + (v->protocol == UAC_VERSION_ALL || + v->protocol == protocol)) { + if (v->func) + return v->func(hdr, v); + /* check for the fixed size */ + return hdr[0] >= v->size; + } + } + + return true; /* not matching, skip validation */ +} + +bool snd_usb_validate_audio_desc(void *p, int protocol) +{ + unsigned char *c = p; + bool valid; + + valid = validate_desc(p, protocol, audio_validators); + if (!valid && snd_usb_skip_validation) { + print_hex_dump(KERN_ERR, "USB-audio: buggy audio desc: ", + DUMP_PREFIX_NONE, 16, 1, c, c[0], true); + valid = true; + } + return valid; +} + +bool snd_usb_validate_midi_desc(void *p) +{ + unsigned char *c = p; + bool valid; + + valid = validate_desc(p, UAC_VERSION_1, midi_validators); + if (!valid && snd_usb_skip_validation) { + print_hex_dump(KERN_ERR, "USB-audio: buggy midi desc: ", + DUMP_PREFIX_NONE, 16, 1, c, c[0], true); + valid = true; + } + return valid; +} |