sound/firewire/oxfw/oxfw.c

   1 /*
   2  * oxfw.c - a part of driver for OXFW970/971 based devices
   3  *
   4  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   5  * Licensed under the terms of the GNU General Public License, version 2.
   6  */
   7
   8 #include "oxfw.h"
   9
  10 #define OXFORD_FIRMWARE_ID_ADDRESS      (CSR_REGISTER_BASE + 0x50000)
  11 /* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */
  12
  13 #define OXFORD_HARDWARE_ID_ADDRESS      (CSR_REGISTER_BASE + 0x90020)
  14 #define OXFORD_HARDWARE_ID_OXFW970      0x39443841
  15 #define OXFORD_HARDWARE_ID_OXFW971      0x39373100
  16
  17 #define VENDOR_LOUD             0x000ff2
  18 #define VENDOR_GRIFFIN          0x001292
  19 #define VENDOR_BEHRINGER        0x001564
  20 #define VENDOR_LACIE            0x00d04b
  21 #define VENDOR_TASCAM           0x00022e
  22 #define OUI_STANTON             0x001260
  23
  24 #define MODEL_SATELLITE         0x00200f
  25
  26 #define SPECIFIER_1394TA        0x00a02d
  27 #define VERSION_AVC             0x010001
  28
  29 MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver");
  30 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  31 MODULE_LICENSE("GPL v2");
  32 MODULE_ALIAS("snd-firewire-speakers");
  33 MODULE_ALIAS("snd-scs1x");
  34
  35 struct compat_info {
  36         const char *driver_name;
  37         const char *vendor_name;
  38         const char *model_name;
  39 };
  40
  41 static bool detect_loud_models(struct fw_unit *unit)
  42 {
  43         const char *const models[] = {
  44                 "Onyxi",
  45                 "Onyx-i",
  46                 "Onyx 1640i",
  47                 "d.Pro",
  48                 "Mackie Onyx Satellite",
  49                 "Tapco LINK.firewire 4x6",
  50                 "U.420"};
  51         char model[32];
  52         unsigned int i;
  53         int err;
  54
  55         err = fw_csr_string(unit->directory, CSR_MODEL,
  56                             model, sizeof(model));
  57         if (err < 0)
  58                 return false;
  59
  60         for (i = 0; i < ARRAY_SIZE(models); i++) {
  61                 if (strcmp(models[i], model) == 0)
  62                         break;
  63         }
  64
  65         return (i < ARRAY_SIZE(models));
  66 }
  67
  68 static int name_card(struct snd_oxfw *oxfw)
  69 {
  70         struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
  71         const struct compat_info *info;
  72         char vendor[24];
  73         char model[32];
  74         const char *d, *v, *m;
  75         u32 firmware;
  76         int err;
  77
  78         /* get vendor name from root directory */
  79         err = fw_csr_string(fw_dev->config_rom + 5, CSR_VENDOR,
  80                             vendor, sizeof(vendor));
  81         if (err < 0)
  82                 goto end;
  83
  84         /* get model name from unit directory */
  85         err = fw_csr_string(oxfw->unit->directory, CSR_MODEL,
  86                             model, sizeof(model));
  87         if (err < 0)
  88                 goto end;
  89
  90         err = snd_fw_transaction(oxfw->unit, TCODE_READ_QUADLET_REQUEST,
  91                                  OXFORD_FIRMWARE_ID_ADDRESS, &firmware, 4, 0);
  92         if (err < 0)
  93                 goto end;
  94         be32_to_cpus(&firmware);
  95
  96         /* to apply card definitions */
  97         if (oxfw->entry->vendor_id == VENDOR_GRIFFIN ||
  98             oxfw->entry->vendor_id == VENDOR_LACIE) {
  99                 info = (const struct compat_info *)oxfw->entry->driver_data;
 100                 d = info->driver_name;
 101                 v = info->vendor_name;
 102                 m = info->model_name;
 103         } else {
 104                 d = "OXFW";
 105                 v = vendor;
 106                 m = model;
 107         }
 108
 109         strcpy(oxfw->card->driver, d);
 110         strcpy(oxfw->card->mixername, m);
 111         strcpy(oxfw->card->shortname, m);
 112
 113         snprintf(oxfw->card->longname, sizeof(oxfw->card->longname),
 114                  "%s %s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
 115                  v, m, firmware >> 20, firmware & 0xffff,
 116                  fw_dev->config_rom[3], fw_dev->config_rom[4],
 117                  dev_name(&oxfw->unit->device), 100 << fw_dev->max_speed);
 118 end:
 119         return err;
 120 }
 121
 122 static void oxfw_free(struct snd_oxfw *oxfw)
 123 {
 124         unsigned int i;
 125
 126         snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
 127         if (oxfw->has_output)
 128                 snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
 129
 130         fw_unit_put(oxfw->unit);
 131
 132         for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
 133                 kfree(oxfw->tx_stream_formats[i]);
 134                 kfree(oxfw->rx_stream_formats[i]);
 135         }
 136
 137         kfree(oxfw->spec);
 138         mutex_destroy(&oxfw->mutex);
 139 }
 140
 141 /*
 142  * This module releases the FireWire unit data after all ALSA character devices
 143  * are released by applications. This is for releasing stream data or finishing
 144  * transactions safely. Thus at returning from .remove(), this module still keep
 145  * references for the unit.
 146  */
 147 static void oxfw_card_free(struct snd_card *card)
 148 {
 149         oxfw_free(card->private_data);
 150 }
 151
 152 static int detect_quirks(struct snd_oxfw *oxfw)
 153 {
 154         struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
 155         struct fw_csr_iterator it;
 156         int key, val;
 157         int vendor, model;
 158
 159         /*
 160          * Add ALSA control elements for two models to keep compatibility to
 161          * old firewire-speaker module.
 162          */
 163         if (oxfw->entry->vendor_id == VENDOR_GRIFFIN)
 164                 return snd_oxfw_add_spkr(oxfw, false);
 165         if (oxfw->entry->vendor_id == VENDOR_LACIE)
 166                 return snd_oxfw_add_spkr(oxfw, true);
 167
 168         /*
 169          * Stanton models supports asynchronous transactions for unique MIDI
 170          * messages.
 171          */
 172         if (oxfw->entry->vendor_id == OUI_STANTON) {
 173                 /* No physical MIDI ports. */
 174                 oxfw->midi_input_ports = 0;
 175                 oxfw->midi_output_ports = 0;
 176
 177                 /* Output stream exists but no data channels are useful. */
 178                 oxfw->has_output = false;
 179
 180                 return snd_oxfw_scs1x_add(oxfw);
 181         }
 182
 183         /*
 184          * TASCAM FireOne has physical control and requires a pair of additional
 185          * MIDI ports.
 186          */
 187         if (oxfw->entry->vendor_id == VENDOR_TASCAM) {
 188                 oxfw->midi_input_ports++;
 189                 oxfw->midi_output_ports++;
 190                 return 0;
 191         }
 192
 193         /* Seek from Root Directory of Config ROM. */
 194         vendor = model = 0;
 195         fw_csr_iterator_init(&it, fw_dev->config_rom + 5);
 196         while (fw_csr_iterator_next(&it, &key, &val)) {
 197                 if (key == CSR_VENDOR)
 198                         vendor = val;
 199                 else if (key == CSR_MODEL)
 200                         model = val;
 201         }
 202
 203         /*
 204          * Mackie Onyx Satellite with base station has a quirk to report a wrong
 205          * value in 'dbs' field of CIP header against its format information.
 206          */
 207         if (vendor == VENDOR_LOUD && model == MODEL_SATELLITE)
 208                 oxfw->wrong_dbs = true;
 209
 210         return 0;
 211 }
 212
 213 static void do_registration(struct work_struct *work)
 214 {
 215         struct snd_oxfw *oxfw = container_of(work, struct snd_oxfw, dwork.work);
 216         int err;
 217
 218         if (oxfw->registered)
 219                 return;
 220
 221         err = snd_card_new(&oxfw->unit->device, -1, NULL, THIS_MODULE, 0,
 222                            &oxfw->card);
 223         if (err < 0)
 224                 return;
 225
 226         err = name_card(oxfw);
 227         if (err < 0)
 228                 goto error;
 229
 230         err = snd_oxfw_stream_discover(oxfw);
 231         if (err < 0)
 232                 goto error;
 233
 234         err = detect_quirks(oxfw);
 235         if (err < 0)
 236                 goto error;
 237
 238         err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream);
 239         if (err < 0)
 240                 goto error;
 241         if (oxfw->has_output) {
 242                 err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream);
 243                 if (err < 0)
 244                         goto error;
 245         }
 246
 247         err = snd_oxfw_create_pcm(oxfw);
 248         if (err < 0)
 249                 goto error;
 250
 251         snd_oxfw_proc_init(oxfw);
 252
 253         err = snd_oxfw_create_midi(oxfw);
 254         if (err < 0)
 255                 goto error;
 256
 257         err = snd_oxfw_create_hwdep(oxfw);
 258         if (err < 0)
 259                 goto error;
 260
 261         err = snd_card_register(oxfw->card);
 262         if (err < 0)
 263                 goto error;
 264
 265         /*
 266          * After registered, oxfw instance can be released corresponding to
 267          * releasing the sound card instance.
 268          */
 269         oxfw->card->private_free = oxfw_card_free;
 270         oxfw->card->private_data = oxfw;
 271         oxfw->registered = true;
 272
 273         return;
 274 error:
 275         snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
 276         if (oxfw->has_output)
 277                 snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
 278         snd_card_free(oxfw->card);
 279         dev_info(&oxfw->unit->device,
 280                  "Sound card registration failed: %d\n", err);
 281 }
 282
 283 static int oxfw_probe(struct fw_unit *unit,
 284                       const struct ieee1394_device_id *entry)
 285 {
 286         struct snd_oxfw *oxfw;
 287
 288         if (entry->vendor_id == VENDOR_LOUD && !detect_loud_models(unit))
 289                 return -ENODEV;
 290
 291         /* Allocate this independent of sound card instance. */
 292         oxfw = kzalloc(sizeof(struct snd_oxfw), GFP_KERNEL);
 293         if (oxfw == NULL)
 294                 return -ENOMEM;
 295
 296         oxfw->entry = entry;
 297         oxfw->unit = fw_unit_get(unit);
 298         dev_set_drvdata(&unit->device, oxfw);
 299
 300         mutex_init(&oxfw->mutex);
 301         spin_lock_init(&oxfw->lock);
 302         init_waitqueue_head(&oxfw->hwdep_wait);
 303
 304         /* Allocate and register this sound card later. */
 305         INIT_DEFERRABLE_WORK(&oxfw->dwork, do_registration);
 306         snd_fw_schedule_registration(unit, &oxfw->dwork);
 307
 308         return 0;
 309 }
 310
 311 static void oxfw_bus_reset(struct fw_unit *unit)
 312 {
 313         struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
 314
 315         if (!oxfw->registered)
 316                 snd_fw_schedule_registration(unit, &oxfw->dwork);
 317
 318         fcp_bus_reset(oxfw->unit);
 319
 320         if (oxfw->registered) {
 321                 mutex_lock(&oxfw->mutex);
 322
 323                 snd_oxfw_stream_update_simplex(oxfw, &oxfw->rx_stream);
 324                 if (oxfw->has_output)
 325                         snd_oxfw_stream_update_simplex(oxfw, &oxfw->tx_stream);
 326
 327                 mutex_unlock(&oxfw->mutex);
 328
 329                 if (oxfw->entry->vendor_id == OUI_STANTON)
 330                         snd_oxfw_scs1x_update(oxfw);
 331         }
 332 }
 333
 334 static void oxfw_remove(struct fw_unit *unit)
 335 {
 336         struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
 337
 338         /*
 339          * Confirm to stop the work for registration before the sound card is
 340          * going to be released. The work is not scheduled again because bus
 341          * reset handler is not called anymore.
 342          */
 343         cancel_delayed_work_sync(&oxfw->dwork);
 344
 345         if (oxfw->registered) {
 346                 /* No need to wait for releasing card object in this context. */
 347                 snd_card_free_when_closed(oxfw->card);
 348         } else {
 349                 /* Don't forget this case. */
 350                 oxfw_free(oxfw);
 351         }
 352 }
 353
 354 static const struct compat_info griffin_firewave = {
 355         .driver_name = "FireWave",
 356         .vendor_name = "Griffin",
 357         .model_name = "FireWave",
 358 };
 359
 360 static const struct compat_info lacie_speakers = {
 361         .driver_name = "FWSpeakers",
 362         .vendor_name = "LaCie",
 363         .model_name = "FireWire Speakers",
 364 };
 365
 366 static const struct ieee1394_device_id oxfw_id_table[] = {
 367         {
 368                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 369                                 IEEE1394_MATCH_MODEL_ID |
 370                                 IEEE1394_MATCH_SPECIFIER_ID |
 371                                 IEEE1394_MATCH_VERSION,
 372                 .vendor_id    = VENDOR_GRIFFIN,
 373                 .model_id     = 0x00f970,
 374                 .specifier_id = SPECIFIER_1394TA,
 375                 .version      = VERSION_AVC,
 376                 .driver_data  = (kernel_ulong_t)&griffin_firewave,
 377         },
 378         {
 379                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 380                                 IEEE1394_MATCH_MODEL_ID |
 381                                 IEEE1394_MATCH_SPECIFIER_ID |
 382                                 IEEE1394_MATCH_VERSION,
 383                 .vendor_id    = VENDOR_LACIE,
 384                 .model_id     = 0x00f970,
 385                 .specifier_id = SPECIFIER_1394TA,
 386                 .version      = VERSION_AVC,
 387                 .driver_data  = (kernel_ulong_t)&lacie_speakers,
 388         },
 389         /* Behringer,F-Control Audio 202 */
 390         {
 391                 .match_flags    = IEEE1394_MATCH_VENDOR_ID |
 392                                   IEEE1394_MATCH_MODEL_ID,
 393                 .vendor_id      = VENDOR_BEHRINGER,
 394                 .model_id       = 0x00fc22,
 395         },
 396         /*
 397          * Any Mackie(Loud) models (name string/model id):
 398          *  Onyx-i series (former models):      0x081216
 399          *  Mackie Onyx Satellite:              0x00200f
 400          *  Tapco LINK.firewire 4x6:            0x000460
 401          *  d.2 pro:                            Unknown
 402          *  d.4 pro:                            Unknown
 403          *  U.420:                              Unknown
 404          *  U.420d:                             Unknown
 405          */
 406         {
 407                 .match_flags    = IEEE1394_MATCH_VENDOR_ID |
 408                                   IEEE1394_MATCH_SPECIFIER_ID |
 409                                   IEEE1394_MATCH_VERSION,
 410                 .vendor_id      = VENDOR_LOUD,
 411                 .specifier_id   = SPECIFIER_1394TA,
 412                 .version        = VERSION_AVC,
 413         },
 414         /* TASCAM, FireOne */
 415         {
 416                 .match_flags    = IEEE1394_MATCH_VENDOR_ID |
 417                                   IEEE1394_MATCH_MODEL_ID,
 418                 .vendor_id      = VENDOR_TASCAM,
 419                 .model_id       = 0x800007,
 420         },
 421         /* Stanton, Stanton Controllers & Systems 1 Mixer (SCS.1m) */
 422         {
 423                 .match_flags    = IEEE1394_MATCH_VENDOR_ID |
 424                                   IEEE1394_MATCH_MODEL_ID,
 425                 .vendor_id      = OUI_STANTON,
 426                 .model_id       = 0x001000,
 427         },
 428         /* Stanton, Stanton Controllers & Systems 1 Deck (SCS.1d) */
 429         {
 430                 .match_flags    = IEEE1394_MATCH_VENDOR_ID |
 431                                   IEEE1394_MATCH_MODEL_ID,
 432                 .vendor_id      = OUI_STANTON,
 433                 .model_id       = 0x002000,
 434         },
 435         { }
 436 };
 437 MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);
 438
 439 static struct fw_driver oxfw_driver = {
 440         .driver   = {
 441                 .owner  = THIS_MODULE,
 442                 .name   = KBUILD_MODNAME,
 443                 .bus    = &fw_bus_type,
 444         },
 445         .probe    = oxfw_probe,
 446         .update   = oxfw_bus_reset,
 447         .remove   = oxfw_remove,
 448         .id_table = oxfw_id_table,
 449 };
 450
 451 static int __init snd_oxfw_init(void)
 452 {
 453         return driver_register(&oxfw_driver.driver);
 454 }
 455
 456 static void __exit snd_oxfw_exit(void)
 457 {
 458         driver_unregister(&oxfw_driver.driver);
 459 }
 460
 461 module_init(snd_oxfw_init);
 462 module_exit(snd_oxfw_exit);