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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * digi00x.c - a part of driver for Digidesign Digi 002/003 family4 *5 * Copyright (c) 2014-2015 Takashi Sakamoto6 */7 8#include "digi00x.h"9 10MODULE_DESCRIPTION("Digidesign Digi 002/003 family Driver");11MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>");12MODULE_LICENSE("GPL");13 14#define VENDOR_DIGIDESIGN 0x00a07e15#define MODEL_CONSOLE 0x00000116#define MODEL_RACK 0x00000217#define SPEC_VERSION 0x00000118 19static int name_card(struct snd_dg00x *dg00x)20{21 struct fw_device *fw_dev = fw_parent_device(dg00x->unit);22 char name[32] = {0};23 char *model;24 int err;25 26 err = fw_csr_string(dg00x->unit->directory, CSR_MODEL, name,27 sizeof(name));28 if (err < 0)29 return err;30 31 model = skip_spaces(name);32 33 strcpy(dg00x->card->driver, "Digi00x");34 strcpy(dg00x->card->shortname, model);35 strcpy(dg00x->card->mixername, model);36 snprintf(dg00x->card->longname, sizeof(dg00x->card->longname),37 "Digidesign %s, GUID %08x%08x at %s, S%d", model,38 fw_dev->config_rom[3], fw_dev->config_rom[4],39 dev_name(&dg00x->unit->device), 100 << fw_dev->max_speed);40 41 return 0;42}43 44static void dg00x_card_free(struct snd_card *card)45{46 struct snd_dg00x *dg00x = card->private_data;47 48 snd_dg00x_stream_destroy_duplex(dg00x);49 snd_dg00x_transaction_unregister(dg00x);50 51 mutex_destroy(&dg00x->mutex);52 fw_unit_put(dg00x->unit);53}54 55static int snd_dg00x_probe(struct fw_unit *unit, const struct ieee1394_device_id *entry)56{57 struct snd_card *card;58 struct snd_dg00x *dg00x;59 int err;60 61 err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, sizeof(*dg00x), &card);62 if (err < 0)63 return err;64 card->private_free = dg00x_card_free;65 66 dg00x = card->private_data;67 dg00x->unit = fw_unit_get(unit);68 dev_set_drvdata(&unit->device, dg00x);69 dg00x->card = card;70 71 mutex_init(&dg00x->mutex);72 spin_lock_init(&dg00x->lock);73 init_waitqueue_head(&dg00x->hwdep_wait);74 75 dg00x->is_console = entry->model_id == MODEL_CONSOLE;76 77 err = name_card(dg00x);78 if (err < 0)79 goto error;80 81 err = snd_dg00x_stream_init_duplex(dg00x);82 if (err < 0)83 goto error;84 85 snd_dg00x_proc_init(dg00x);86 87 err = snd_dg00x_create_pcm_devices(dg00x);88 if (err < 0)89 goto error;90 91 err = snd_dg00x_create_midi_devices(dg00x);92 if (err < 0)93 goto error;94 95 err = snd_dg00x_create_hwdep_device(dg00x);96 if (err < 0)97 goto error;98 99 err = snd_dg00x_transaction_register(dg00x);100 if (err < 0)101 goto error;102 103 err = snd_card_register(card);104 if (err < 0)105 goto error;106 107 return 0;108error:109 snd_card_free(card);110 return err;111}112 113static void snd_dg00x_update(struct fw_unit *unit)114{115 struct snd_dg00x *dg00x = dev_get_drvdata(&unit->device);116 117 snd_dg00x_transaction_reregister(dg00x);118 119 mutex_lock(&dg00x->mutex);120 snd_dg00x_stream_update_duplex(dg00x);121 mutex_unlock(&dg00x->mutex);122}123 124static void snd_dg00x_remove(struct fw_unit *unit)125{126 struct snd_dg00x *dg00x = dev_get_drvdata(&unit->device);127 128 // Block till all of ALSA character devices are released.129 snd_card_free(dg00x->card);130}131 132static const struct ieee1394_device_id snd_dg00x_id_table[] = {133 /* Both of 002/003 use the same ID. */134 {135 .match_flags = IEEE1394_MATCH_VENDOR_ID |136 IEEE1394_MATCH_VERSION |137 IEEE1394_MATCH_MODEL_ID,138 .vendor_id = VENDOR_DIGIDESIGN,139 .version = SPEC_VERSION,140 .model_id = MODEL_CONSOLE,141 },142 {143 .match_flags = IEEE1394_MATCH_VENDOR_ID |144 IEEE1394_MATCH_VERSION |145 IEEE1394_MATCH_MODEL_ID,146 .vendor_id = VENDOR_DIGIDESIGN,147 .version = SPEC_VERSION,148 .model_id = MODEL_RACK,149 },150 {}151};152MODULE_DEVICE_TABLE(ieee1394, snd_dg00x_id_table);153 154static struct fw_driver dg00x_driver = {155 .driver = {156 .owner = THIS_MODULE,157 .name = KBUILD_MODNAME,158 .bus = &fw_bus_type,159 },160 .probe = snd_dg00x_probe,161 .update = snd_dg00x_update,162 .remove = snd_dg00x_remove,163 .id_table = snd_dg00x_id_table,164};165 166static int __init snd_dg00x_init(void)167{168 return driver_register(&dg00x_driver.driver);169}170 171static void __exit snd_dg00x_exit(void)172{173 driver_unregister(&dg00x_driver.driver);174}175 176module_init(snd_dg00x_init);177module_exit(snd_dg00x_exit);178