mirror of https://gitee.com/openkylin/linux.git
298 lines
7.3 KiB
C
298 lines
7.3 KiB
C
/*
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* Linux driver for M2Tech hiFace compatible devices
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*
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* Copyright 2012-2013 (C) M2TECH S.r.l and Amarula Solutions B.V.
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*
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* Authors: Michael Trimarchi <michael@amarulasolutions.com>
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* Antonio Ospite <ao2@amarulasolutions.com>
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*
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* The driver is based on the work done in TerraTec DMX 6Fire USB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <sound/initval.h>
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#include "chip.h"
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#include "pcm.h"
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MODULE_AUTHOR("Michael Trimarchi <michael@amarulasolutions.com>");
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MODULE_AUTHOR("Antonio Ospite <ao2@amarulasolutions.com>");
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MODULE_DESCRIPTION("M2Tech hiFace USB-SPDIF audio driver");
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MODULE_LICENSE("GPL v2");
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MODULE_SUPPORTED_DEVICE("{{M2Tech,Young},"
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"{M2Tech,hiFace},"
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"{M2Tech,North Star},"
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"{M2Tech,W4S Young},"
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"{M2Tech,Corrson},"
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"{M2Tech,AUDIA},"
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"{M2Tech,SL Audio},"
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"{M2Tech,Empirical},"
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"{M2Tech,Rockna},"
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"{M2Tech,Pathos},"
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"{M2Tech,Metronome},"
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"{M2Tech,CAD},"
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"{M2Tech,Audio Esclusive},"
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"{M2Tech,Rotel},"
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"{M2Tech,Eeaudio},"
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"{The Chord Company,CHORD},"
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"{AVA Group A/S,Vitus}}");
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
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#define DRIVER_NAME "snd-usb-hiface"
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#define CARD_NAME "hiFace"
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");
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static DEFINE_MUTEX(register_mutex);
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struct hiface_vendor_quirk {
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const char *device_name;
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u8 extra_freq;
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};
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static int hiface_chip_create(struct usb_interface *intf,
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struct usb_device *device, int idx,
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const struct hiface_vendor_quirk *quirk,
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struct hiface_chip **rchip)
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{
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struct snd_card *card = NULL;
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struct hiface_chip *chip;
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int ret;
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int len;
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*rchip = NULL;
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/* if we are here, card can be registered in alsa. */
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ret = snd_card_new(&intf->dev, index[idx], id[idx], THIS_MODULE,
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sizeof(*chip), &card);
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if (ret < 0) {
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dev_err(&device->dev, "cannot create alsa card.\n");
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return ret;
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}
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strlcpy(card->driver, DRIVER_NAME, sizeof(card->driver));
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if (quirk && quirk->device_name)
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strlcpy(card->shortname, quirk->device_name, sizeof(card->shortname));
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else
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strlcpy(card->shortname, "M2Tech generic audio", sizeof(card->shortname));
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strlcat(card->longname, card->shortname, sizeof(card->longname));
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len = strlcat(card->longname, " at ", sizeof(card->longname));
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if (len < sizeof(card->longname))
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usb_make_path(device, card->longname + len,
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sizeof(card->longname) - len);
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chip = card->private_data;
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chip->dev = device;
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chip->card = card;
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*rchip = chip;
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return 0;
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}
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static int hiface_chip_probe(struct usb_interface *intf,
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const struct usb_device_id *usb_id)
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{
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const struct hiface_vendor_quirk *quirk = (struct hiface_vendor_quirk *)usb_id->driver_info;
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int ret;
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int i;
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struct hiface_chip *chip;
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struct usb_device *device = interface_to_usbdev(intf);
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ret = usb_set_interface(device, 0, 0);
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if (ret != 0) {
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dev_err(&device->dev, "can't set first interface for " CARD_NAME " device.\n");
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return -EIO;
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}
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/* check whether the card is already registered */
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chip = NULL;
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mutex_lock(®ister_mutex);
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for (i = 0; i < SNDRV_CARDS; i++)
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if (enable[i])
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break;
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if (i >= SNDRV_CARDS) {
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dev_err(&device->dev, "no available " CARD_NAME " audio device\n");
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ret = -ENODEV;
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goto err;
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}
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ret = hiface_chip_create(intf, device, i, quirk, &chip);
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if (ret < 0)
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goto err;
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ret = hiface_pcm_init(chip, quirk ? quirk->extra_freq : 0);
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if (ret < 0)
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goto err_chip_destroy;
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ret = snd_card_register(chip->card);
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if (ret < 0) {
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dev_err(&device->dev, "cannot register " CARD_NAME " card\n");
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goto err_chip_destroy;
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}
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mutex_unlock(®ister_mutex);
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usb_set_intfdata(intf, chip);
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return 0;
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err_chip_destroy:
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snd_card_free(chip->card);
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err:
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mutex_unlock(®ister_mutex);
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return ret;
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}
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static void hiface_chip_disconnect(struct usb_interface *intf)
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{
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struct hiface_chip *chip;
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struct snd_card *card;
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chip = usb_get_intfdata(intf);
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if (!chip)
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return;
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card = chip->card;
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/* Make sure that the userspace cannot create new request */
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snd_card_disconnect(card);
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hiface_pcm_abort(chip);
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snd_card_free_when_closed(card);
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}
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static const struct usb_device_id device_table[] = {
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{
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USB_DEVICE(0x04b4, 0x0384),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Young",
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.extra_freq = 1,
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}
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},
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{
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USB_DEVICE(0x04b4, 0x930b),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "hiFace",
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}
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},
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{
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USB_DEVICE(0x04b4, 0x931b),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "North Star",
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}
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},
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{
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USB_DEVICE(0x04b4, 0x931c),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "W4S Young",
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}
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},
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{
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USB_DEVICE(0x04b4, 0x931d),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Corrson",
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}
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},
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{
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USB_DEVICE(0x04b4, 0x931e),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "AUDIA",
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}
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},
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{
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USB_DEVICE(0x04b4, 0x931f),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "SL Audio",
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}
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},
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{
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USB_DEVICE(0x04b4, 0x9320),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Empirical",
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}
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},
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{
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USB_DEVICE(0x04b4, 0x9321),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Rockna",
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}
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},
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{
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USB_DEVICE(0x249c, 0x9001),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Pathos",
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}
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},
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{
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USB_DEVICE(0x249c, 0x9002),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Metronome",
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}
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},
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{
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USB_DEVICE(0x249c, 0x9006),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "CAD",
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}
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},
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{
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USB_DEVICE(0x249c, 0x9008),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Audio Esclusive",
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}
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},
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{
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USB_DEVICE(0x249c, 0x931c),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Rotel",
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}
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},
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{
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USB_DEVICE(0x249c, 0x932c),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Eeaudio",
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}
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},
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{
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USB_DEVICE(0x245f, 0x931c),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "CHORD",
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}
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},
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{
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USB_DEVICE(0x25c6, 0x9002),
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.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
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.device_name = "Vitus",
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}
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},
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{}
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};
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MODULE_DEVICE_TABLE(usb, device_table);
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static struct usb_driver hiface_usb_driver = {
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.name = DRIVER_NAME,
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.probe = hiface_chip_probe,
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.disconnect = hiface_chip_disconnect,
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.id_table = device_table,
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};
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module_usb_driver(hiface_usb_driver);
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