From: Takashi Sakamoto Date: Fri, 31 Mar 2017 13:05:59 +0000 (+0900) Subject: ALSA: fireface: add skeleton for RME Fireface series X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=17c4e5eadc4ab7db4c0655c124174a6d8e5f4dc5;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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: Takashi Sakamoto Signed-off-by: Takashi Iwai --- diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig index 6acfacf75daf..b75a82288f74 100644 --- a/sound/firewire/Kconfig +++ b/sound/firewire/Kconfig @@ -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 diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile index 9388ded69468..1b98fa3fa3d4 100644 --- a/sound/firewire/Makefile +++ b/sound/firewire/Makefile @@ -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-$(CONFIG_SND_FIREFACE) += fireface/ diff --git a/sound/firewire/fireface/Makefile b/sound/firewire/fireface/Makefile new file mode 100644 index 000000000000..2c64ef6efacb --- /dev/null +++ b/sound/firewire/fireface/Makefile @@ -0,0 +1,2 @@ +snd-fireface-objs := ff.o +obj-$(CONFIG_SND_FIREFACE) += snd-fireface.o diff --git a/sound/firewire/fireface/ff.c b/sound/firewire/fireface/ff.c new file mode 100644 index 000000000000..358bba23deeb --- /dev/null +++ b/sound/firewire/fireface/ff.c @@ -0,0 +1,113 @@ +/* + * 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 "); +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); diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h new file mode 100644 index 000000000000..64d488ec8264 --- /dev/null +++ b/sound/firewire/fireface/ff.h @@ -0,0 +1,28 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include +#include + +#include + +struct snd_ff { + struct snd_card *card; + struct fw_unit *unit; + struct mutex mutex; +}; +#endif