mirror of https://gitee.com/openkylin/linux.git
114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
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/*
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* ff.c - a part of driver for RME Fireface series
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*
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* Copyright (c) 2015-2017 Takashi Sakamoto
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*
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#include "ff.h"
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#define OUI_RME 0x000a35
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MODULE_DESCRIPTION("RME Fireface series Driver");
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MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
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MODULE_LICENSE("GPL v2");
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static void name_card(struct snd_ff *ff)
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{
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struct fw_device *fw_dev = fw_parent_device(ff->unit);
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const char *const model = "Fireface Skeleton";
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strcpy(ff->card->driver, "Fireface");
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strcpy(ff->card->shortname, model);
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strcpy(ff->card->mixername, model);
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snprintf(ff->card->longname, sizeof(ff->card->longname),
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"RME %s, GUID %08x%08x at %s, S%d", model,
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fw_dev->config_rom[3], fw_dev->config_rom[4],
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dev_name(&ff->unit->device), 100 << fw_dev->max_speed);
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}
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static void ff_card_free(struct snd_card *card)
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{
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struct snd_ff *ff = card->private_data;
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fw_unit_put(ff->unit);
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mutex_destroy(&ff->mutex);
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}
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static int snd_ff_probe(struct fw_unit *unit,
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const struct ieee1394_device_id *entry)
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{
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struct snd_card *card;
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struct snd_ff *ff;
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int err;
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err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
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sizeof(struct snd_ff), &card);
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if (err < 0)
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return err;
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card->private_free = ff_card_free;
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/* initialize myself */
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ff = card->private_data;
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ff->card = card;
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ff->unit = fw_unit_get(unit);
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dev_set_drvdata(&unit->device, ff);
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mutex_init(&ff->mutex);
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name_card(ff);
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err = snd_card_register(card);
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if (err < 0) {
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snd_card_free(card);
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return err;
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}
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return 0;
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}
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static void snd_ff_update(struct fw_unit *unit)
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{
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return;
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}
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static void snd_ff_remove(struct fw_unit *unit)
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{
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struct snd_ff *ff = dev_get_drvdata(&unit->device);
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/* No need to wait for releasing card object in this context. */
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snd_card_free_when_closed(ff->card);
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}
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static const struct ieee1394_device_id snd_ff_id_table[] = {
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{}
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};
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MODULE_DEVICE_TABLE(ieee1394, snd_ff_id_table);
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static struct fw_driver ff_driver = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "snd-fireface",
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.bus = &fw_bus_type,
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},
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.probe = snd_ff_probe,
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.update = snd_ff_update,
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.remove = snd_ff_remove,
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.id_table = snd_ff_id_table,
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};
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static int __init snd_ff_init(void)
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{
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return driver_register(&ff_driver.driver);
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}
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static void __exit snd_ff_exit(void)
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{
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driver_unregister(&ff_driver.driver);
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}
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module_init(snd_ff_init);
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module_exit(snd_ff_exit);
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