1 /* 2 * digi00x.c - a part of driver for Digidesign Digi 002/003 family 3 * 4 * Copyright (c) 2014-2015 Takashi Sakamoto 5 * 6 * Licensed under the terms of the GNU General Public License, version 2. 7 */ 8 9 #include "digi00x.h" 10 11 MODULE_DESCRIPTION("Digidesign Digi 002/003 family Driver"); 12 MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>"); 13 MODULE_LICENSE("GPL v2"); 14 15 #define VENDOR_DIGIDESIGN 0x00a07e 16 #define MODEL_DIGI00X 0x000002 17 18 static int name_card(struct snd_dg00x *dg00x) 19 { 20 struct fw_device *fw_dev = fw_parent_device(dg00x->unit); 21 char name[32] = {0}; 22 char *model; 23 int err; 24 25 err = fw_csr_string(dg00x->unit->directory, CSR_MODEL, name, 26 sizeof(name)); 27 if (err < 0) 28 return err; 29 30 model = skip_spaces(name); 31 32 strcpy(dg00x->card->driver, "Digi00x"); 33 strcpy(dg00x->card->shortname, model); 34 strcpy(dg00x->card->mixername, model); 35 snprintf(dg00x->card->longname, sizeof(dg00x->card->longname), 36 "Digidesign %s, GUID %08x%08x at %s, S%d", model, 37 fw_dev->config_rom[3], fw_dev->config_rom[4], 38 dev_name(&dg00x->unit->device), 100 << fw_dev->max_speed); 39 40 return 0; 41 } 42 43 static void dg00x_card_free(struct snd_card *card) 44 { 45 struct snd_dg00x *dg00x = card->private_data; 46 47 snd_dg00x_stream_destroy_duplex(dg00x); 48 snd_dg00x_transaction_unregister(dg00x); 49 50 fw_unit_put(dg00x->unit); 51 52 mutex_destroy(&dg00x->mutex); 53 } 54 55 static int snd_dg00x_probe(struct fw_unit *unit, 56 const struct ieee1394_device_id *entry) 57 { 58 struct snd_card *card; 59 struct snd_dg00x *dg00x; 60 int err; 61 62 /* create card */ 63 err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, 64 sizeof(struct snd_dg00x), &card); 65 if (err < 0) 66 return err; 67 card->private_free = dg00x_card_free; 68 69 /* initialize myself */ 70 dg00x = card->private_data; 71 dg00x->card = card; 72 dg00x->unit = fw_unit_get(unit); 73 74 mutex_init(&dg00x->mutex); 75 spin_lock_init(&dg00x->lock); 76 init_waitqueue_head(&dg00x->hwdep_wait); 77 78 err = name_card(dg00x); 79 if (err < 0) 80 goto error; 81 82 err = snd_dg00x_stream_init_duplex(dg00x); 83 if (err < 0) 84 goto error; 85 86 snd_dg00x_proc_init(dg00x); 87 88 err = snd_dg00x_create_pcm_devices(dg00x); 89 if (err < 0) 90 goto error; 91 92 err = snd_dg00x_create_midi_devices(dg00x); 93 if (err < 0) 94 goto error; 95 96 err = snd_dg00x_create_hwdep_device(dg00x); 97 if (err < 0) 98 goto error; 99 100 err = snd_dg00x_transaction_register(dg00x); 101 if (err < 0) 102 goto error; 103 104 err = snd_card_register(card); 105 if (err < 0) 106 goto error; 107 108 dev_set_drvdata(&unit->device, dg00x); 109 110 return err; 111 error: 112 snd_card_free(card); 113 return err; 114 } 115 116 static void snd_dg00x_update(struct fw_unit *unit) 117 { 118 struct snd_dg00x *dg00x = dev_get_drvdata(&unit->device); 119 120 snd_dg00x_transaction_reregister(dg00x); 121 122 mutex_lock(&dg00x->mutex); 123 snd_dg00x_stream_update_duplex(dg00x); 124 mutex_unlock(&dg00x->mutex); 125 } 126 127 static void snd_dg00x_remove(struct fw_unit *unit) 128 { 129 struct snd_dg00x *dg00x = dev_get_drvdata(&unit->device); 130 131 /* No need to wait for releasing card object in this context. */ 132 snd_card_free_when_closed(dg00x->card); 133 } 134 135 static const struct ieee1394_device_id snd_dg00x_id_table[] = { 136 /* Both of 002/003 use the same ID. */ 137 { 138 .match_flags = IEEE1394_MATCH_VENDOR_ID | 139 IEEE1394_MATCH_MODEL_ID, 140 .vendor_id = VENDOR_DIGIDESIGN, 141 .model_id = MODEL_DIGI00X, 142 }, 143 {} 144 }; 145 MODULE_DEVICE_TABLE(ieee1394, snd_dg00x_id_table); 146 147 static struct fw_driver dg00x_driver = { 148 .driver = { 149 .owner = THIS_MODULE, 150 .name = "snd-firewire-digi00x", 151 .bus = &fw_bus_type, 152 }, 153 .probe = snd_dg00x_probe, 154 .update = snd_dg00x_update, 155 .remove = snd_dg00x_remove, 156 .id_table = snd_dg00x_id_table, 157 }; 158 159 static int __init snd_dg00x_init(void) 160 { 161 return driver_register(&dg00x_driver.driver); 162 } 163 164 static void __exit snd_dg00x_exit(void) 165 { 166 driver_unregister(&dg00x_driver.driver); 167 } 168 169 module_init(snd_dg00x_init); 170 module_exit(snd_dg00x_exit); 171