mirror of https://gitee.com/openkylin/linux.git
208 lines
4.7 KiB
C
208 lines
4.7 KiB
C
/*
|
|
* tascam.c - a part of driver for TASCAM FireWire series
|
|
*
|
|
* Copyright (c) 2015 Takashi Sakamoto
|
|
*
|
|
* Licensed under the terms of the GNU General Public License, version 2.
|
|
*/
|
|
|
|
#include "tascam.h"
|
|
|
|
MODULE_DESCRIPTION("TASCAM FireWire series Driver");
|
|
MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
|
|
MODULE_LICENSE("GPL v2");
|
|
|
|
static struct snd_tscm_spec model_specs[] = {
|
|
{
|
|
.name = "FW-1884",
|
|
.has_adat = true,
|
|
.has_spdif = true,
|
|
.pcm_capture_analog_channels = 8,
|
|
.pcm_playback_analog_channels = 8,
|
|
.midi_capture_ports = 4,
|
|
.midi_playback_ports = 4,
|
|
.is_controller = true,
|
|
},
|
|
{
|
|
.name = "FW-1804",
|
|
.has_adat = true,
|
|
.has_spdif = true,
|
|
.pcm_capture_analog_channels = 8,
|
|
.pcm_playback_analog_channels = 2,
|
|
.midi_capture_ports = 2,
|
|
.midi_playback_ports = 4,
|
|
.is_controller = false,
|
|
},
|
|
{
|
|
.name = "FW-1082",
|
|
.has_adat = false,
|
|
.has_spdif = true,
|
|
.pcm_capture_analog_channels = 8,
|
|
.pcm_playback_analog_channels = 2,
|
|
.midi_capture_ports = 2,
|
|
.midi_playback_ports = 2,
|
|
.is_controller = true,
|
|
},
|
|
};
|
|
|
|
static int check_name(struct snd_tscm *tscm)
|
|
{
|
|
struct fw_device *fw_dev = fw_parent_device(tscm->unit);
|
|
char vendor[8];
|
|
char model[8];
|
|
__u32 data;
|
|
|
|
/* Retrieve model name. */
|
|
data = be32_to_cpu(fw_dev->config_rom[28]);
|
|
memcpy(model, &data, 4);
|
|
data = be32_to_cpu(fw_dev->config_rom[29]);
|
|
memcpy(model + 4, &data, 4);
|
|
model[7] = '\0';
|
|
|
|
/* Retrieve vendor name. */
|
|
data = be32_to_cpu(fw_dev->config_rom[23]);
|
|
memcpy(vendor, &data, 4);
|
|
data = be32_to_cpu(fw_dev->config_rom[24]);
|
|
memcpy(vendor + 4, &data, 4);
|
|
vendor[7] = '\0';
|
|
|
|
strcpy(tscm->card->driver, "FW-TASCAM");
|
|
strcpy(tscm->card->shortname, model);
|
|
strcpy(tscm->card->mixername, model);
|
|
snprintf(tscm->card->longname, sizeof(tscm->card->longname),
|
|
"%s %s, GUID %08x%08x at %s, S%d", vendor, model,
|
|
cpu_to_be32(fw_dev->config_rom[3]),
|
|
cpu_to_be32(fw_dev->config_rom[4]),
|
|
dev_name(&tscm->unit->device), 100 << fw_dev->max_speed);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tscm_card_free(struct snd_card *card)
|
|
{
|
|
struct snd_tscm *tscm = card->private_data;
|
|
|
|
snd_tscm_stream_destroy_duplex(tscm);
|
|
|
|
fw_unit_put(tscm->unit);
|
|
|
|
mutex_destroy(&tscm->mutex);
|
|
}
|
|
|
|
static int snd_tscm_probe(struct fw_unit *unit,
|
|
const struct ieee1394_device_id *entry)
|
|
{
|
|
struct snd_card *card;
|
|
struct snd_tscm *tscm;
|
|
int err;
|
|
|
|
/* create card */
|
|
err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
|
|
sizeof(struct snd_tscm), &card);
|
|
if (err < 0)
|
|
return err;
|
|
card->private_free = tscm_card_free;
|
|
|
|
/* initialize myself */
|
|
tscm = card->private_data;
|
|
tscm->card = card;
|
|
tscm->unit = fw_unit_get(unit);
|
|
tscm->spec = (const struct snd_tscm_spec *)entry->driver_data;
|
|
|
|
mutex_init(&tscm->mutex);
|
|
|
|
err = check_name(tscm);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
snd_tscm_proc_init(tscm);
|
|
|
|
err = snd_tscm_stream_init_duplex(tscm);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
err = snd_tscm_create_pcm_devices(tscm);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
err = snd_card_register(card);
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
dev_set_drvdata(&unit->device, tscm);
|
|
|
|
return err;
|
|
error:
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
|
|
static void snd_tscm_update(struct fw_unit *unit)
|
|
{
|
|
struct snd_tscm *tscm = dev_get_drvdata(&unit->device);
|
|
|
|
mutex_lock(&tscm->mutex);
|
|
snd_tscm_stream_update_duplex(tscm);
|
|
mutex_unlock(&tscm->mutex);
|
|
}
|
|
|
|
static void snd_tscm_remove(struct fw_unit *unit)
|
|
{
|
|
struct snd_tscm *tscm = dev_get_drvdata(&unit->device);
|
|
|
|
/* No need to wait for releasing card object in this context. */
|
|
snd_card_free_when_closed(tscm->card);
|
|
}
|
|
|
|
static const struct ieee1394_device_id snd_tscm_id_table[] = {
|
|
/* FW-1082 */
|
|
{
|
|
.match_flags = IEEE1394_MATCH_VENDOR_ID |
|
|
IEEE1394_MATCH_SPECIFIER_ID |
|
|
IEEE1394_MATCH_VERSION,
|
|
.vendor_id = 0x00022e,
|
|
.specifier_id = 0x00022e,
|
|
.version = 0x800003,
|
|
.driver_data = (kernel_ulong_t)&model_specs[2],
|
|
},
|
|
/* FW-1884 */
|
|
{
|
|
.match_flags = IEEE1394_MATCH_VENDOR_ID |
|
|
IEEE1394_MATCH_SPECIFIER_ID |
|
|
IEEE1394_MATCH_VERSION,
|
|
.vendor_id = 0x00022e,
|
|
.specifier_id = 0x00022e,
|
|
.version = 0x800000,
|
|
.driver_data = (kernel_ulong_t)&model_specs[0],
|
|
},
|
|
/* FW-1804 mey be supported if IDs are clear. */
|
|
/* FE-08 requires reverse-engineering because it just has faders. */
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(ieee1394, snd_tscm_id_table);
|
|
|
|
static struct fw_driver tscm_driver = {
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "snd-firewire-tascam",
|
|
.bus = &fw_bus_type,
|
|
},
|
|
.probe = snd_tscm_probe,
|
|
.update = snd_tscm_update,
|
|
.remove = snd_tscm_remove,
|
|
.id_table = snd_tscm_id_table,
|
|
};
|
|
|
|
static int __init snd_tscm_init(void)
|
|
{
|
|
return driver_register(&tscm_driver.driver);
|
|
}
|
|
|
|
static void __exit snd_tscm_exit(void)
|
|
{
|
|
driver_unregister(&tscm_driver.driver);
|
|
}
|
|
|
|
module_init(snd_tscm_init);
|
|
module_exit(snd_tscm_exit);
|