139 lines
3.0 KiB
C
139 lines
3.0 KiB
C
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/*
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* digi00x.c - a part of driver for Digidesign Digi 002/003 family
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*
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* Copyright (c) 2014-2015 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 "digi00x.h"
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MODULE_DESCRIPTION("Digidesign Digi 002/003 family 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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#define VENDOR_DIGIDESIGN 0x00a07e
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#define MODEL_DIGI00X 0x000002
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static int name_card(struct snd_dg00x *dg00x)
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{
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struct fw_device *fw_dev = fw_parent_device(dg00x->unit);
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char name[32] = {0};
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char *model;
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int err;
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err = fw_csr_string(dg00x->unit->directory, CSR_MODEL, name,
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sizeof(name));
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if (err < 0)
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return err;
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model = skip_spaces(name);
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strcpy(dg00x->card->driver, "Digi00x");
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strcpy(dg00x->card->shortname, model);
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strcpy(dg00x->card->mixername, model);
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snprintf(dg00x->card->longname, sizeof(dg00x->card->longname),
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"Digidesign %s, GUID %08x%08x at %s, S%d", model,
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cpu_to_be32(fw_dev->config_rom[3]),
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cpu_to_be32(fw_dev->config_rom[4]),
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dev_name(&dg00x->unit->device), 100 << fw_dev->max_speed);
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return 0;
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}
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static void dg00x_card_free(struct snd_card *card)
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{
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struct snd_dg00x *dg00x = card->private_data;
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fw_unit_put(dg00x->unit);
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mutex_destroy(&dg00x->mutex);
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}
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static int snd_dg00x_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_dg00x *dg00x;
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int err;
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/* create card */
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err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
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sizeof(struct snd_dg00x), &card);
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if (err < 0)
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return err;
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card->private_free = dg00x_card_free;
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/* initialize myself */
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dg00x = card->private_data;
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dg00x->card = card;
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dg00x->unit = fw_unit_get(unit);
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mutex_init(&dg00x->mutex);
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err = name_card(dg00x);
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if (err < 0)
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goto error;
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err = snd_card_register(card);
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if (err < 0)
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goto error;
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dev_set_drvdata(&unit->device, dg00x);
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return err;
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error:
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snd_card_free(card);
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return err;
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}
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static void snd_dg00x_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_dg00x_remove(struct fw_unit *unit)
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{
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struct snd_dg00x *dg00x = 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(dg00x->card);
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}
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static const struct ieee1394_device_id snd_dg00x_id_table[] = {
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/* Both of 002/003 use the same ID. */
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{
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.match_flags = IEEE1394_MATCH_VENDOR_ID |
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IEEE1394_MATCH_MODEL_ID,
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.vendor_id = VENDOR_DIGIDESIGN,
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.model_id = MODEL_DIGI00X,
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},
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{}
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};
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MODULE_DEVICE_TABLE(ieee1394, snd_dg00x_id_table);
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static struct fw_driver dg00x_driver = {
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.driver = {
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.owner = THIS_MODULE,
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.name = "snd-firewire-digi00x",
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.bus = &fw_bus_type,
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},
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.probe = snd_dg00x_probe,
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.update = snd_dg00x_update,
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.remove = snd_dg00x_remove,
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.id_table = snd_dg00x_id_table,
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};
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static int __init snd_dg00x_init(void)
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{
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return driver_register(&dg00x_driver.driver);
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}
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static void __exit snd_dg00x_exit(void)
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{
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driver_unregister(&dg00x_driver.driver);
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}
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module_init(snd_dg00x_init);
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module_exit(snd_dg00x_exit);
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