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