* Line 6 Pod HD
*
* Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com>
+ * Copyright (C) 2015 Andrej Krutak <dev@andree.sk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
#include "driver.h"
#include "pcm.h"
+#define PODHD_STARTUP_DELAY 500
+
+/*
+ * Stages of POD startup procedure
+ */
+enum {
+ PODHD_STARTUP_INIT = 1,
+ PODHD_STARTUP_SCHEDULE_WORKQUEUE,
+ PODHD_STARTUP_SETUP,
+ PODHD_STARTUP_LAST = PODHD_STARTUP_SETUP - 1
+};
+
enum {
LINE6_PODHD300,
LINE6_PODHD400,
LINE6_PODHD500_0,
LINE6_PODHD500_1,
+ LINE6_PODX3,
+};
+
+struct usb_line6_podhd {
+ /* Generic Line 6 USB data */
+ struct usb_line6 line6;
+
+ /* Timer for device initialization */
+ struct timer_list startup_timer;
+
+ /* Work handler for device initialization */
+ struct work_struct startup_work;
+
+ /* Current progress in startup procedure */
+ int startup_progress;
+
+ /* Serial number of device */
+ u32 serial_number;
+
+ /* Firmware version */
+ int firmware_version;
};
static struct snd_ratden podhd_ratden = {
.rates = {
.nrats = 1,
.rats = &podhd_ratden},
- .bytes_per_channel = 3 /* 24bit audio (stereo) */
+ .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 void podhd_startup_start_workqueue(unsigned long data);
+static void podhd_startup_workqueue(struct work_struct *work);
+static int podhd_startup_finalize(struct usb_line6_podhd *pod);
+
+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 sprintf(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 sprintf(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 void podhd_startup(struct usb_line6_podhd *pod)
+{
+ CHECK_STARTUP_PROGRESS(pod->startup_progress, PODHD_STARTUP_INIT);
+
+ /* delay startup procedure: */
+ line6_start_timer(&pod->startup_timer, PODHD_STARTUP_DELAY,
+ podhd_startup_start_workqueue, (unsigned long)pod);
+}
+
+static void podhd_startup_start_workqueue(unsigned long data)
+{
+ struct usb_line6_podhd *pod = (struct usb_line6_podhd *)data;
+
+ CHECK_STARTUP_PROGRESS(pod->startup_progress,
+ PODHD_STARTUP_SCHEDULE_WORKQUEUE);
+
+ /* schedule work for global work queue: */
+ schedule_work(&pod->startup_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(usbdev, usb_sndctrlpipe(usbdev, 0),
+ 0x67, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+ 0x11, 0,
+ NULL, 0, LINE6_TIMEOUT * HZ);
+ if (ret < 0) {
+ dev_err(pod->line6.ifcdev, "read request failed (error %d)\n", ret);
+ return ret;
+ }
+
+ /* NOTE: looks like some kind of ping message */
+ ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0x11, 0x0,
+ &init_bytes, 3, LINE6_TIMEOUT * HZ);
+ if (ret < 0) {
+ dev_err(pod->line6.ifcdev,
+ "receive length failed (error %d)\n", ret);
+ return ret;
+ }
+
+ 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)
+ return ret;
+ }
+
+ ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
+ USB_REQ_SET_FEATURE,
+ USB_TYPE_STANDARD | USB_RECIP_DEVICE | USB_DIR_OUT,
+ 1, 0,
+ NULL, 0, LINE6_TIMEOUT * HZ);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void podhd_startup_workqueue(struct work_struct *work)
+{
+ struct usb_line6_podhd *pod =
+ container_of(work, struct usb_line6_podhd, startup_work);
+
+ CHECK_STARTUP_PROGRESS(pod->startup_progress, PODHD_STARTUP_SETUP);
+
+ podhd_dev_start(pod);
+ line6_read_serial_number(&pod->line6, &pod->serial_number);
+
+ podhd_startup_finalize(pod);
+}
+
+static int podhd_startup_finalize(struct usb_line6_podhd *pod)
+{
+ struct usb_line6 *line6 = &pod->line6;
+
+ /* ALSA audio interface: */
+ return snd_card_register(line6->card);
+}
+
+static void podhd_disconnect(struct usb_line6 *line6)
+{
+ struct usb_line6_podhd *pod = (struct usb_line6_podhd *)line6;
+
+ if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL) {
+ del_timer_sync(&pod->startup_timer);
+ cancel_work_sync(&pod->startup_work);
+ }
+}
+
/*
Try to init POD HD device.
*/
const struct usb_device_id *id)
{
int err;
+ struct usb_line6_podhd *pod = (struct usb_line6_podhd *) line6;
+
+ line6->disconnect = podhd_disconnect;
+
+ if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL) {
+ /* create sysfs entries: */
+ err = snd_card_add_dev_attr(line6->card, &podhd_dev_attr_group);
+ if (err < 0)
+ return err;
+ }
/* initialize MIDI subsystem: */
err = line6_init_midi(line6);
return err;
/* initialize PCM subsystem: */
- err = line6_init_pcm(line6, &podhd_pcm_properties);
+ err = line6_init_pcm(line6,
+ (id->driver_info == LINE6_PODX3) ? &podx3_pcm_properties :
+ &podhd_pcm_properties);
if (err < 0)
return err;
- /* register USB audio system: */
- return snd_card_register(line6->card);
+ if (!(pod->line6.properties->capabilities & LINE6_CAP_CONTROL)) {
+ /* register USB audio system directly */
+ return podhd_startup_finalize(pod);
+ }
+
+ /* init device and delay registering */
+ init_timer(&pod->startup_timer);
+ INIT_WORK(&pod->startup_work, podhd_startup_workqueue);
+ podhd_startup(pod);
+ return 0;
}
#define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod)
/* 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_0 },
{ LINE6_IF_NUM(0x414D, 1), .driver_info = LINE6_PODHD500_1 },
+ { LINE6_IF_NUM(0x414A, 0), .driver_info = LINE6_PODX3 },
{}
};
[LINE6_PODHD300] = {
.id = "PODHD300",
.name = "POD HD300",
- .capabilities = LINE6_CAP_CONTROL
- | LINE6_CAP_PCM
+ .capabilities = LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 5,
.ep_ctrl_r = 0x84,
[LINE6_PODHD400] = {
.id = "PODHD400",
.name = "POD HD400",
- .capabilities = LINE6_CAP_CONTROL
- | LINE6_CAP_PCM
+ .capabilities = LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 5,
.ep_ctrl_r = 0x84,
[LINE6_PODHD500_0] = {
.id = "PODHD500",
.name = "POD HD500",
- .capabilities = LINE6_CAP_CONTROL
- | LINE6_CAP_PCM
+ .capabilities = LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 1,
.ep_ctrl_r = 0x81,
[LINE6_PODHD500_1] = {
.id = "PODHD500",
.name = "POD HD500",
- .capabilities = LINE6_CAP_CONTROL
- | LINE6_CAP_PCM
+ .capabilities = LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 1,
.ep_ctrl_r = 0x81,
.ep_audio_r = 0x86,
.ep_audio_w = 0x02,
},
+ [LINE6_PODX3] = {
+ .id = "PODX3",
+ .name = "POD X3",
+ .capabilities = LINE6_CAP_CONTROL
+ | LINE6_CAP_PCM | LINE6_CAP_HWMON | LINE6_CAP_IN_NEEDS_OUT,
+ .altsetting = 1,
+ .ep_ctrl_r = 0x81,
+ .ep_ctrl_w = 0x01,
+ .ep_audio_r = 0x86,
+ .ep_audio_w = 0x02,
+ },
};
/*
{
return line6_probe(interface, id, "Line6-PODHD",
&podhd_properties_table[id->driver_info],
- podhd_init, sizeof(struct usb_line6));
+ podhd_init, sizeof(struct usb_line6_podhd));
}
static struct usb_driver podhd_driver = {
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