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-rw-r--r--sound/usb/line6/pod.c542
1 files changed, 542 insertions, 0 deletions
diff --git a/sound/usb/line6/pod.c b/sound/usb/line6/pod.c
new file mode 100644
index 000000000..54be5ac91
--- /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 sprintf(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 sprintf(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 sprintf(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");
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