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linux/sound/usb/line6/podhd.c

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/*
* 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>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*
*/
#include <linux/usb.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#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,
LINE6_PODX3LIVE,
LINE6_PODHD500X
};
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 = {
.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 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_INFO) {
struct usb_interface *intf;
del_timer_sync(&pod->startup_timer);
cancel_work_sync(&pod->startup_work);
intf = usb_ifnum_to_if(line6->usbdev,
pod->line6.properties->ctrl_if);
usb_driver_release_interface(&podhd_driver, intf);
}
}
/*
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 = (struct usb_line6_podhd *) line6;
struct usb_interface *intf;
line6->disconnect = podhd_disconnect;
init_timer(&pod->startup_timer);
INIT_WORK(&pod->startup_work, podhd_startup_workqueue);
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_CONTROL_INFO)) {
/* register USB audio system directly */
return podhd_startup_finalize(pod);
}
/* init device and delay registering */
podhd_startup(pod);
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_0 },
{ LINE6_IF_NUM(0x414D, 1), .driver_info = LINE6_PODHD500_1 },
{ 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 },
{}
};
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_0] = {
.id = "PODHD500",
.name = "POD HD500",
.capabilities = LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 1,
.ep_ctrl_r = 0x81,
.ep_ctrl_w = 0x01,
.ep_audio_r = 0x86,
.ep_audio_w = 0x02,
},
[LINE6_PODHD500_1] = {
.id = "PODHD500",
.name = "POD HD500",
.capabilities = LINE6_CAP_PCM
| LINE6_CAP_HWMON,
.altsetting = 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,
},
};
/*
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");
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