Commit 17c4e5ea authored by Takashi Sakamoto's avatar Takashi Sakamoto Committed by Takashi Iwai
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ALSA: fireface: add skeleton for RME Fireface series



This commit adds a new driver for RME Fireface series. This commit just
creates/removes card instance according to IEEE 1394 bus event. More
functions will be added in following commits.

Three types of firmware have released by RME GmbH; for Fireface 400, for
Fireface 800 and for UCX/802/UFX. It's reasonable that these models use
different protocol for communication. Currently, I've investigated
Fireface 400 and nothing others.
Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent f87e7f25
......@@ -152,4 +152,10 @@ config SND_FIREWIRE_MOTU
To compile this driver as a module, choose M here: the module
will be called snd-firewire-motu.
config SND_FIREFACE
tristate "RME Fireface series support"
select SND_FIREWIRE_LIB
help
Say Y here to include support for RME fireface series.
endif # SND_FIREWIRE
......@@ -14,3 +14,4 @@ obj-$(CONFIG_SND_BEBOB) += bebob/
obj-$(CONFIG_SND_FIREWIRE_DIGI00X) += digi00x/
obj-$(CONFIG_SND_FIREWIRE_TASCAM) += tascam/
obj-$(CONFIG_SND_FIREWIRE_MOTU) += motu/
obj-$(CONFIG_SND_FIREFACE) += fireface/
snd-fireface-objs := ff.o
obj-$(CONFIG_SND_FIREFACE) += snd-fireface.o
/*
* 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);
const char *const model = "Fireface Skeleton";
strcpy(ff->card->driver, "Fireface");
strcpy(ff->card->shortname, model);
strcpy(ff->card->mixername, model);
snprintf(ff->card->longname, sizeof(ff->card->longname),
"RME %s, GUID %08x%08x at %s, S%d", model,
fw_dev->config_rom[3], fw_dev->config_rom[4],
dev_name(&ff->unit->device), 100 << fw_dev->max_speed);
}
static void ff_card_free(struct snd_card *card)
{
struct snd_ff *ff = card->private_data;
fw_unit_put(ff->unit);
mutex_destroy(&ff->mutex);
}
static int snd_ff_probe(struct fw_unit *unit,
const struct ieee1394_device_id *entry)
{
struct snd_card *card;
struct snd_ff *ff;
int err;
err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
sizeof(struct snd_ff), &card);
if (err < 0)
return err;
card->private_free = ff_card_free;
/* initialize myself */
ff = card->private_data;
ff->card = card;
ff->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, ff);
mutex_init(&ff->mutex);
name_card(ff);
err = snd_card_register(card);
if (err < 0) {
snd_card_free(card);
return err;
}
return 0;
}
static void snd_ff_update(struct fw_unit *unit)
{
return;
}
static void snd_ff_remove(struct fw_unit *unit)
{
struct snd_ff *ff = dev_get_drvdata(&unit->device);
/* No need to wait for releasing card object in this context. */
snd_card_free_when_closed(ff->card);
}
static const struct ieee1394_device_id snd_ff_id_table[] = {
{}
};
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);
/*
* ff.h - 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.
*/
#ifndef SOUND_FIREFACE_H_INCLUDED
#define SOUND_FIREFACE_H_INCLUDED
#include <linux/device.h>
#include <linux/firewire.h>
#include <linux/firewire-constants.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/compat.h>
#include <sound/core.h>
struct snd_ff {
struct snd_card *card;
struct fw_unit *unit;
struct mutex mutex;
};
#endif
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