// 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 " );
MODULE_AUTHOR(
"Antonio Ospite " );
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_i
nfo;
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);
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