1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * digi00x.c - a part of driver for Digidesign Digi 002/003 family 4 * 5 * Copyright (c) 2014-2015 Takashi Sakamoto 6 */ 7 8 #include "digi00x.h" 9 10 MODULE_DESCRIPTION("Digidesign Digi 002/003 family Driver"); 11 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>"); 12 MODULE_LICENSE("GPL"); 13 14 #define VENDOR_DIGIDESIGN 0x00a07e 15 #define MODEL_CONSOLE 0x000001 16 #define MODEL_RACK 0x000002 17 #define SPEC_VERSION 0x000001 18 19 static 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 44 static 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 55 static 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; 108 error: 109 snd_card_free(card); 110 return err; 111 } 112 113 static 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 } 123 124 static 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 } 131 132 static 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 }; 152 MODULE_DEVICE_TABLE(ieee1394, snd_dg00x_id_table); 153 154 static 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 }; 165 166 static int __init snd_dg00x_init(void) 167 { 168 return driver_register(&dg00x_driver.driver); 169 } 170 171 static void __exit snd_dg00x_exit(void) 172 { 173 driver_unregister(&dg00x_driver.driver); 174 } 175 176 module_init(snd_dg00x_init); 177 module_exit(snd_dg00x_exit); 178