// SPDX-License-Identifier: GPL-2.0-only /* * Line 6 Pod HD * * Copyright (C) 2011 Stefan Hajnoczi * Copyright (C) 2015 Andrej Krutak * Copyright (C) 2017 Hans P. Moller */ #include #include #include #include #include #include #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");