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linux/sound/firewire/motu/motu.c
Takashi Sakamoto 271e657f92 ALSA: firewire-motu: add support for MOTU UltraLite 
UltraLite was shipped in 2005 by MOTU, and already discontinued. This
model consists of below ICs:

- Texus Instruments TSB41AB2 for physical layer of IEEE 1394 bus
- Xilinx Spartan XC35S200 for link layer of IEEE 1394 bus, protocol layer
  and signal processing

This commit adds support for this model. Like the other MOTU models,
ALSA firewire MOTU driver fails to drive the device for stable sampling
clock and generate noisy sound.

$ python2 crpp < /sys/bus/firewire/devices/fw1/config_rom
               ROM header and bus information block
               -----------------------------------------------------------------
400  04107574  bus_info_length 4, crc_length 16, crc 30068
404  31333934  bus_name "1394"
408  20001000  irmc 0, cmc 0, isc 1, bmc 0, cyc_clk_acc 0, max_rec 1 (4)
40c  0001f200  company_id 0001f2     |
410  0007b82d  device_id 000007b82d  | EUI-64 0001f2000007b82d

               root directory
               -----------------------------------------------------------------
414  0004c65c  directory_length 4, crc 50780
418  030001f2  vendor
41c  0c0083c0  node capabilities per IEEE 1394
420  8d000006  --> eui-64 leaf at 438
424  d1000001  --> unit directory at 428

               unit directory at 428
               -----------------------------------------------------------------
428  0003d80a  directory_length 3, crc 55306
42c  120001f2  specifier id
430  1300000d  version
434  17100800  model

               eui-64 leaf at 438
               -----------------------------------------------------------------
438  00024566  leaf_length 2, crc 17766
43c  0001f200  company_id 0001f2     |
440  0007b82d  device_id 000007b82d  | EUI-64 0001f2000007b82d

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20191030080644.1704-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-10-30 10:57:57 +01:00

322 lines
8.2 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/*
* motu.c - a part of driver for MOTU FireWire series
*
* Copyright (c) 2015-2017 Takashi Sakamoto <o-takashi@sakamocchi.jp>
*/
#include "motu.h"
#define OUI_MOTU 0x0001f2
MODULE_DESCRIPTION("MOTU FireWire driver");
MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");
MODULE_LICENSE("GPL v2");
const unsigned int snd_motu_clock_rates[SND_MOTU_CLOCK_RATE_COUNT] = {
/* mode 0 */
[0] = 44100,
[1] = 48000,
/* mode 1 */
[2] = 88200,
[3] = 96000,
/* mode 2 */
[4] = 176400,
[5] = 192000,
};
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_MODEL:
version = val;
break;
}
}
strcpy(motu->card->driver, "FW-MOTU");
strcpy(motu->card->shortname, motu->spec->name);
strcpy(motu->card->mixername, motu->spec->name);
snprintf(motu->card->longname, sizeof(motu->card->longname),
"MOTU %s (version:%06x), GUID %08x%08x at %s, S%d",
motu->spec->name, 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;
snd_motu_transaction_unregister(motu);
snd_motu_stream_destroy_duplex(motu);
}
static void do_registration(struct work_struct *work)
{
struct snd_motu *motu = container_of(work, struct snd_motu, dwork.work);
int err;
if (motu->registered)
return;
err = snd_card_new(&motu->unit->device, -1, NULL, THIS_MODULE, 0,
&motu->card);
if (err < 0)
return;
motu->card->private_free = motu_card_free;
motu->card->private_data = motu;
name_card(motu);
err = snd_motu_transaction_register(motu);
if (err < 0)
goto error;
err = snd_motu_stream_init_duplex(motu);
if (err < 0)
goto error;
snd_motu_proc_init(motu);
err = snd_motu_create_pcm_devices(motu);
if (err < 0)
goto error;
if ((motu->spec->flags & SND_MOTU_SPEC_RX_MIDI_2ND_Q) ||
(motu->spec->flags & SND_MOTU_SPEC_RX_MIDI_3RD_Q) ||
(motu->spec->flags & SND_MOTU_SPEC_TX_MIDI_2ND_Q) ||
(motu->spec->flags & SND_MOTU_SPEC_TX_MIDI_3RD_Q)) {
err = snd_motu_create_midi_devices(motu);
if (err < 0)
goto error;
}
err = snd_motu_create_hwdep_device(motu);
if (err < 0)
goto error;
err = snd_card_register(motu->card);
if (err < 0)
goto error;
motu->registered = true;
return;
error:
snd_card_free(motu->card);
dev_info(&motu->unit->device,
"Sound card registration failed: %d\n", err);
}
static int motu_probe(struct fw_unit *unit,
const struct ieee1394_device_id *entry)
{
struct snd_motu *motu;
/* Allocate this independently of sound card instance. */
motu = devm_kzalloc(&unit->device, sizeof(struct snd_motu), GFP_KERNEL);
if (!motu)
return -ENOMEM;
motu->unit = fw_unit_get(unit);
dev_set_drvdata(&unit->device, motu);
motu->spec = (const struct snd_motu_spec *)entry->driver_data;
mutex_init(&motu->mutex);
spin_lock_init(&motu->lock);
init_waitqueue_head(&motu->hwdep_wait);
/* Allocate and register this sound card later. */
INIT_DEFERRABLE_WORK(&motu->dwork, do_registration);
snd_fw_schedule_registration(unit, &motu->dwork);
return 0;
}
static void motu_remove(struct fw_unit *unit)
{
struct snd_motu *motu = 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_delayed_work_sync(&motu->dwork);
if (motu->registered) {
// Block till all of ALSA character devices are released.
snd_card_free(motu->card);
}
mutex_destroy(&motu->mutex);
fw_unit_put(motu->unit);
}
static void motu_bus_update(struct fw_unit *unit)
{
struct snd_motu *motu = dev_get_drvdata(&unit->device);
/* Postpone a workqueue for deferred registration. */
if (!motu->registered)
snd_fw_schedule_registration(unit, &motu->dwork);
/* The handler address register becomes initialized. */
snd_motu_transaction_reregister(motu);
}
const struct snd_motu_spec snd_motu_spec_828mk2 = {
.name = "828mk2",
.protocol = &snd_motu_protocol_v2,
.flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
SND_MOTU_SPEC_TX_MICINST_CHUNK |
SND_MOTU_SPEC_TX_RETURN_CHUNK |
SND_MOTU_SPEC_RX_SEPARATED_MAIN |
SND_MOTU_SPEC_HAS_OPT_IFACE_A |
SND_MOTU_SPEC_RX_MIDI_2ND_Q |
SND_MOTU_SPEC_TX_MIDI_2ND_Q,
.analog_in_ports = 8,
.analog_out_ports = 8,
};
static const struct snd_motu_spec motu_traveler = {
.name = "Traveler",
.protocol = &snd_motu_protocol_v2,
.flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
SND_MOTU_SPEC_SUPPORT_CLOCK_X4 |
SND_MOTU_SPEC_TX_RETURN_CHUNK |
SND_MOTU_SPEC_HAS_AESEBU_IFACE |
SND_MOTU_SPEC_HAS_OPT_IFACE_A |
SND_MOTU_SPEC_RX_MIDI_2ND_Q |
SND_MOTU_SPEC_TX_MIDI_2ND_Q,
.analog_in_ports = 8,
.analog_out_ports = 8,
};
static const struct snd_motu_spec motu_ultralite = {
.name = "UltraLite",
.protocol = &snd_motu_protocol_v2,
.flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
SND_MOTU_SPEC_TX_MICINST_CHUNK | // padding.
SND_MOTU_SPEC_TX_RETURN_CHUNK |
SND_MOTU_SPEC_RX_MIDI_2ND_Q |
SND_MOTU_SPEC_TX_MIDI_2ND_Q |
SND_MOTU_SPEC_RX_SEPARATED_MAIN,
.analog_in_ports = 8,
.analog_out_ports = 8,
};
static const struct snd_motu_spec motu_8pre = {
.name = "8pre",
.protocol = &snd_motu_protocol_v2,
// In tx, use coax chunks for mix-return 1/2. In rx, use coax chunks for
// dummy 1/2.
.flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
SND_MOTU_SPEC_HAS_OPT_IFACE_A |
SND_MOTU_SPEC_HAS_OPT_IFACE_B |
SND_MOTU_SPEC_RX_MIDI_2ND_Q |
SND_MOTU_SPEC_TX_MIDI_2ND_Q,
.analog_in_ports = 8,
.analog_out_ports = 2,
};
static const struct snd_motu_spec motu_828mk3 = {
.name = "828mk3",
.protocol = &snd_motu_protocol_v3,
.flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
SND_MOTU_SPEC_SUPPORT_CLOCK_X4 |
SND_MOTU_SPEC_TX_MICINST_CHUNK |
SND_MOTU_SPEC_TX_RETURN_CHUNK |
SND_MOTU_SPEC_TX_REVERB_CHUNK |
SND_MOTU_SPEC_RX_SEPARATED_MAIN |
SND_MOTU_SPEC_HAS_OPT_IFACE_A |
SND_MOTU_SPEC_HAS_OPT_IFACE_B |
SND_MOTU_SPEC_RX_MIDI_3RD_Q |
SND_MOTU_SPEC_TX_MIDI_3RD_Q,
.analog_in_ports = 8,
.analog_out_ports = 8,
};
static const struct snd_motu_spec motu_audio_express = {
.name = "AudioExpress",
.protocol = &snd_motu_protocol_v3,
.flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
SND_MOTU_SPEC_TX_MICINST_CHUNK |
SND_MOTU_SPEC_TX_RETURN_CHUNK |
SND_MOTU_SPEC_RX_SEPARATED_MAIN |
SND_MOTU_SPEC_RX_MIDI_2ND_Q |
SND_MOTU_SPEC_TX_MIDI_3RD_Q,
.analog_in_ports = 2,
.analog_out_ports = 4,
};
static const struct snd_motu_spec motu_4pre = {
.name = "4pre",
.protocol = &snd_motu_protocol_v3,
.flags = SND_MOTU_SPEC_SUPPORT_CLOCK_X2 |
SND_MOTU_SPEC_TX_MICINST_CHUNK |
SND_MOTU_SPEC_TX_RETURN_CHUNK |
SND_MOTU_SPEC_RX_SEPARATED_MAIN,
.analog_in_ports = 2,
.analog_out_ports = 2,
};
#define SND_MOTU_DEV_ENTRY(model, data) \
{ \
.match_flags = IEEE1394_MATCH_VENDOR_ID | \
IEEE1394_MATCH_SPECIFIER_ID | \
IEEE1394_MATCH_VERSION, \
.vendor_id = OUI_MOTU, \
.specifier_id = OUI_MOTU, \
.version = model, \
.driver_data = (kernel_ulong_t)data, \
}
static const struct ieee1394_device_id motu_id_table[] = {
SND_MOTU_DEV_ENTRY(0x000003, &snd_motu_spec_828mk2),
SND_MOTU_DEV_ENTRY(0x000009, &motu_traveler),
SND_MOTU_DEV_ENTRY(0x00000d, &motu_ultralite),
SND_MOTU_DEV_ENTRY(0x00000f, &motu_8pre),
SND_MOTU_DEV_ENTRY(0x000015, &motu_828mk3), /* FireWire only. */
SND_MOTU_DEV_ENTRY(0x000035, &motu_828mk3), /* Hybrid. */
SND_MOTU_DEV_ENTRY(0x000033, &motu_audio_express),
SND_MOTU_DEV_ENTRY(0x000045, &motu_4pre),
{ }
};
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);
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