--- /dev/null
+/*
+ * 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
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <sound/initval.h>
+
+#include "chip.h"
+#include "pcm.h"
+
+MODULE_AUTHOR("Michael Trimarchi <michael@amarulasolutions.com>");
+MODULE_AUTHOR("Antonio Ospite <ao2@amarulasolutions.com>");
+MODULE_DESCRIPTION("M2Tech hiFace USB-SPDIF audio driver");
+MODULE_LICENSE("GPL v2");
+MODULE_SUPPORTED_DEVICE("{{M2Tech,Young},"
+ "{M2Tech,hiFace},"
+ "{M2Tech,North Star},"
+ "{M2Tech,W4S Young},"
+ "{M2Tech,Corrson},"
+ "{M2Tech,AUDIA},"
+ "{M2Tech,SL Audio},"
+ "{M2Tech,Empirical},"
+ "{M2Tech,Rockna},"
+ "{M2Tech,Pathos},"
+ "{M2Tech,Metronome},"
+ "{M2Tech,CAD},"
+ "{M2Tech,Audio Esclusive},"
+ "{M2Tech,Rotel},"
+ "{M2Tech,Eeaudio},"
+ "{The Chord Company,CHORD},"
+ "{AVA Group A/S,Vitus}}");
+
+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;
+ }
+
+ strlcpy(card->driver, DRIVER_NAME, sizeof(card->driver));
+
+ if (quirk && quirk->device_name)
+ strlcpy(card->shortname, quirk->device_name, sizeof(card->shortname));
+ else
+ strlcpy(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_info;
+ 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);
Code Review / kvmfornfv.git / blobdiff