135 строки
2.8 KiB
C
135 строки
2.8 KiB
C
|
/*
|
||
|
|
* motu.c - a part of driver for MOTU FireWire series
|
||
|
|
*
|
||
|
|
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
|
||
|
|
*
|
||
|
|
* Licensed under the terms of the GNU General Public License, version 2.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "motu.h"
|
||
|
|
|
||
|
|
#define OUI_MOTU 0x0001f2
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("MOTU FireWire driver");
|
||
|
|
MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
|
||
|
|
MODULE_LICENSE("GPL v2");
|
||
|
|
|
||
|
|
static void name_card(struct snd_motu *motu)
|
||
|
|
{
|
||
|
|
struct fw_device *fw_dev = fw_parent_device(motu->unit);
|
||
|
|
struct fw_csr_iterator it;
|
||
|
|
int key, val;
|
||
|
|
u32 version = 0;
|
||
|
|
|
||
|
|
fw_csr_iterator_init(&it, motu->unit->directory);
|
||
|
|
while (fw_csr_iterator_next(&it, &key, &val)) {
|
||
|
|
switch (key) {
|
||
|
|
case CSR_VERSION:
|
||
|
|
version = val;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
strcpy(motu->card->driver, "FW-MOTU");
|
||
|
|
snprintf(motu->card->longname, sizeof(motu->card->longname),
|
||
|
|
"MOTU (version:%d), GUID %08x%08x at %s, S%d",
|
||
|
|
version,
|
||
|
|
fw_dev->config_rom[3], fw_dev->config_rom[4],
|
||
|
|
dev_name(&motu->unit->device), 100 << fw_dev->max_speed);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void motu_card_free(struct snd_card *card)
|
||
|
|
{
|
||
|
|
struct snd_motu *motu = card->private_data;
|
||
|
|
|
||
|
|
fw_unit_put(motu->unit);
|
||
|
|
|
||
|
|
mutex_destroy(&motu->mutex);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int motu_probe(struct fw_unit *unit,
|
||
|
|
const struct ieee1394_device_id *entry)
|
||
|
|
{
|
||
|
|
struct snd_card *card;
|
||
|
|
struct snd_motu *motu;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
|
||
|
|
sizeof(*motu), &card);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
motu = card->private_data;
|
||
|
|
motu->card = card;
|
||
|
|
motu->unit = fw_unit_get(unit);
|
||
|
|
card->private_free = motu_card_free;
|
||
|
|
|
||
|
|
mutex_init(&motu->mutex);
|
||
|
|
|
||
|
|
name_card(motu);
|
||
|
|
|
||
|
|
err = snd_card_register(card);
|
||
|
|
if (err < 0)
|
||
|
|
goto error;
|
||
|
|
|
||
|
|
dev_set_drvdata(&unit->device, motu);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
error:
|
||
|
|
snd_card_free(card);
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void motu_remove(struct fw_unit *unit)
|
||
|
|
{
|
||
|
|
struct snd_motu *motu = dev_get_drvdata(&unit->device);
|
||
|
|
|
||
|
|
/* No need to wait for releasing card object in this context. */
|
||
|
|
snd_card_free_when_closed(motu->card);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void motu_bus_update(struct fw_unit *unit)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define SND_MOTU_DEV_ENTRY(model) \
|
||
|
|
{ \
|
||
|
|
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
|
||
|
|
IEEE1394_MATCH_MODEL_ID | \
|
||
|
|
IEEE1394_MATCH_SPECIFIER_ID, \
|
||
|
|
.vendor_id = OUI_MOTU, \
|
||
|
|
.model_id = model, \
|
||
|
|
.specifier_id = OUI_MOTU, \
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct ieee1394_device_id motu_id_table[] = {
|
||
|
|
{ }
|
||
|
|
};
|
||
|
|
MODULE_DEVICE_TABLE(ieee1394, motu_id_table);
|
||
|
|
|
||
|
|
static struct fw_driver motu_driver = {
|
||
|
|
.driver = {
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.name = KBUILD_MODNAME,
|
||
|
|
.bus = &fw_bus_type,
|
||
|
|
},
|
||
|
|
.probe = motu_probe,
|
||
|
|
.update = motu_bus_update,
|
||
|
|
.remove = motu_remove,
|
||
|
|
.id_table = motu_id_table,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init alsa_motu_init(void)
|
||
|
|
{
|
||
|
|
return driver_register(&motu_driver.driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit alsa_motu_exit(void)
|
||
|
|
{
|
||
|
|
driver_unregister(&motu_driver.driver);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(alsa_motu_init);
|
||
|
|
module_exit(alsa_motu_exit);
|