210 lines
4.6 KiB
C
210 lines
4.6 KiB
C
/*
|
|
* ff.c - a part of driver for RME Fireface series
|
|
*
|
|
* Copyright (c) 2015-2017 Takashi Sakamoto
|
|
*
|
|
* Licensed under the terms of the GNU General Public License, version 2.
|
|
*/
|
|
|
|
#include "ff.h"
|
|
|
|
#define OUI_RME 0x000a35
|
|
|
|
MODULE_DESCRIPTION("RME Fireface series Driver");
|
|
MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
|
|
MODULE_LICENSE("GPL v2");
|
|
|
|
static void name_card(struct snd_ff *ff)
|
|
{
|
|
struct fw_device *fw_dev = fw_parent_device(ff->unit);
|
|
|
|
strcpy(ff->card->driver, "Fireface");
|
|
strcpy(ff->card->shortname, ff->spec->name);
|
|
strcpy(ff->card->mixername, ff->spec->name);
|
|
snprintf(ff->card->longname, sizeof(ff->card->longname),
|
|
"RME %s, GUID %08x%08x at %s, S%d", ff->spec->name,
|
|
fw_dev->config_rom[3], fw_dev->config_rom[4],
|
|
dev_name(&ff->unit->device), 100 << fw_dev->max_speed);
|
|
}
|
|
|
|
static void ff_free(struct snd_ff *ff)
|
|
{
|
|
snd_ff_stream_destroy_duplex(ff);
|
|
snd_ff_transaction_unregister(ff);
|
|
|
|
fw_unit_put(ff->unit);
|
|
|
|
mutex_destroy(&ff->mutex);
|
|
kfree(ff);
|
|
}
|
|
|
|
static void ff_card_free(struct snd_card *card)
|
|
{
|
|
ff_free(card->private_data);
|
|
}
|
|
|
|
static void do_registration(struct work_struct *work)
|
|
{
|
|
struct snd_ff *ff = container_of(work, struct snd_ff, dwork.work);
|
|
int err;
|
|
|
|
if (ff->registered)
|
|
return;
|
|
|
|
err = snd_card_new(&ff->unit->device, -1, NULL, THIS_MODULE, 0,
|
|
&ff->card);
|
|
if (err < 0)
|
|
return;
|
|
|
|
err = snd_ff_transaction_register(ff);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
name_card(ff);
|
|
|
|
err = snd_ff_stream_init_duplex(ff);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
snd_ff_proc_init(ff);
|
|
|
|
err = snd_ff_create_midi_devices(ff);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
err = snd_ff_create_pcm_devices(ff);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
err = snd_ff_create_hwdep_devices(ff);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
err = snd_card_register(ff->card);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
ff->card->private_free = ff_card_free;
|
|
ff->card->private_data = ff;
|
|
ff->registered = true;
|
|
|
|
return;
|
|
error:
|
|
snd_ff_transaction_unregister(ff);
|
|
snd_ff_stream_destroy_duplex(ff);
|
|
snd_card_free(ff->card);
|
|
dev_info(&ff->unit->device,
|
|
"Sound card registration failed: %d\n", err);
|
|
}
|
|
|
|
static int snd_ff_probe(struct fw_unit *unit,
|
|
const struct ieee1394_device_id *entry)
|
|
{
|
|
struct snd_ff *ff;
|
|
|
|
ff = kzalloc(sizeof(struct snd_ff), GFP_KERNEL);
|
|
if (ff == NULL)
|
|
return -ENOMEM;
|
|
|
|
/* initialize myself */
|
|
ff->unit = fw_unit_get(unit);
|
|
dev_set_drvdata(&unit->device, ff);
|
|
|
|
mutex_init(&ff->mutex);
|
|
spin_lock_init(&ff->lock);
|
|
init_waitqueue_head(&ff->hwdep_wait);
|
|
|
|
ff->spec = (const struct snd_ff_spec *)entry->driver_data;
|
|
|
|
/* Register this sound card later. */
|
|
INIT_DEFERRABLE_WORK(&ff->dwork, do_registration);
|
|
snd_fw_schedule_registration(unit, &ff->dwork);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void snd_ff_update(struct fw_unit *unit)
|
|
{
|
|
struct snd_ff *ff = dev_get_drvdata(&unit->device);
|
|
|
|
/* Postpone a workqueue for deferred registration. */
|
|
if (!ff->registered)
|
|
snd_fw_schedule_registration(unit, &ff->dwork);
|
|
|
|
snd_ff_transaction_reregister(ff);
|
|
|
|
if (ff->registered)
|
|
snd_ff_stream_update_duplex(ff);
|
|
}
|
|
|
|
static void snd_ff_remove(struct fw_unit *unit)
|
|
{
|
|
struct snd_ff *ff = dev_get_drvdata(&unit->device);
|
|
|
|
/*
|
|
* Confirm to stop the work for registration before the sound card is
|
|
* going to be released. The work is not scheduled again because bus
|
|
* reset handler is not called anymore.
|
|
*/
|
|
cancel_work_sync(&ff->dwork.work);
|
|
|
|
if (ff->registered) {
|
|
/* No need to wait for releasing card object in this context. */
|
|
snd_card_free_when_closed(ff->card);
|
|
} else {
|
|
/* Don't forget this case. */
|
|
ff_free(ff);
|
|
}
|
|
}
|
|
|
|
static struct snd_ff_spec spec_ff400 = {
|
|
.name = "Fireface400",
|
|
.pcm_capture_channels = {18, 14, 10},
|
|
.pcm_playback_channels = {18, 14, 10},
|
|
.midi_in_ports = 2,
|
|
.midi_out_ports = 2,
|
|
.protocol = &snd_ff_protocol_ff400,
|
|
};
|
|
|
|
static const struct ieee1394_device_id snd_ff_id_table[] = {
|
|
/* Fireface 400 */
|
|
{
|
|
.match_flags = IEEE1394_MATCH_VENDOR_ID |
|
|
IEEE1394_MATCH_SPECIFIER_ID |
|
|
IEEE1394_MATCH_VERSION |
|
|
IEEE1394_MATCH_MODEL_ID,
|
|
.vendor_id = OUI_RME,
|
|
.specifier_id = 0x000a35,
|
|
.version = 0x000002,
|
|
.model_id = 0x101800,
|
|
.driver_data = (kernel_ulong_t)&spec_ff400,
|
|
},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(ieee1394, snd_ff_id_table);
|
|
|
|
static struct fw_driver ff_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "snd-fireface",
|
|
.bus = &fw_bus_type,
|
|
},
|
|
.probe = snd_ff_probe,
|
|
.update = snd_ff_update,
|
|
.remove = snd_ff_remove,
|
|
.id_table = snd_ff_id_table,
|
|
};
|
|
|
|
static int __init snd_ff_init(void)
|
|
{
|
|
return driver_register(&ff_driver.driver);
|
|
}
|
|
|
|
static void __exit snd_ff_exit(void)
|
|
{
|
|
driver_unregister(&ff_driver.driver);
|
|
}
|
|
|
|
module_init(snd_ff_init);
|
|
module_exit(snd_ff_exit);
|