diff options
Diffstat (limited to 'sound/firewire/motu/motu.c')
| -rw-r--r-- | sound/firewire/motu/motu.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/sound/firewire/motu/motu.c b/sound/firewire/motu/motu.c new file mode 100644 index 000000000..f8b7fe387 --- /dev/null +++ b/sound/firewire/motu/motu.c @@ -0,0 +1,205 @@ +// 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); + + mutex_destroy(&motu->mutex); + fw_unit_put(motu->unit); +} + +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; + card->private_free = motu_card_free; + + motu = card->private_data; + motu->unit = fw_unit_get(unit); + dev_set_drvdata(&unit->device, motu); + motu->card = card; + + 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); + + 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; + + if (motu->spec->flags & SND_MOTU_SPEC_REGISTER_DSP) { + err = snd_motu_register_dsp_message_parser_new(motu); + if (err < 0) + goto error; + } else if (motu->spec->flags & SND_MOTU_SPEC_COMMAND_DSP) { + err = snd_motu_command_dsp_message_parser_new(motu); + if (err < 0) + goto error; + } + + err = snd_card_register(card); + if (err < 0) + goto error; + + 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); + + // Block till all of ALSA character devices are released. + snd_card_free(motu->card); +} + +static void motu_bus_update(struct fw_unit *unit) +{ + struct snd_motu *motu = dev_get_drvdata(&unit->device); + + /* The handler address register becomes initialized. */ + snd_motu_transaction_reregister(motu); +} + +#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(0x000001, &snd_motu_spec_828), + SND_MOTU_DEV_ENTRY(0x000002, &snd_motu_spec_896), + SND_MOTU_DEV_ENTRY(0x000003, &snd_motu_spec_828mk2), + SND_MOTU_DEV_ENTRY(0x000005, &snd_motu_spec_896hd), + SND_MOTU_DEV_ENTRY(0x000009, &snd_motu_spec_traveler), + SND_MOTU_DEV_ENTRY(0x00000d, &snd_motu_spec_ultralite), + SND_MOTU_DEV_ENTRY(0x00000f, &snd_motu_spec_8pre), + SND_MOTU_DEV_ENTRY(0x000015, &snd_motu_spec_828mk3_fw), // FireWire only. + SND_MOTU_DEV_ENTRY(0x000019, &snd_motu_spec_ultralite_mk3), // FireWire only. + SND_MOTU_DEV_ENTRY(0x00001b, &snd_motu_spec_traveler_mk3), + SND_MOTU_DEV_ENTRY(0x000030, &snd_motu_spec_ultralite_mk3), // Hybrid. + SND_MOTU_DEV_ENTRY(0x000035, &snd_motu_spec_828mk3_hybrid), // Hybrid. + SND_MOTU_DEV_ENTRY(0x000033, &snd_motu_spec_audio_express), + SND_MOTU_DEV_ENTRY(0x000039, &snd_motu_spec_track16), + SND_MOTU_DEV_ENTRY(0x000045, &snd_motu_spec_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); |