kernel/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
  22 #define SPECIFIER_1394TA        0x00a02d
  23 #define VERSION_AVC             0x010001
  24
  25 MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver");
  26 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  27 MODULE_LICENSE("GPL v2");
  28 MODULE_ALIAS("snd-firewire-speakers");
  29
  30 static bool detect_loud_models(struct fw_unit *unit)
  31 {
  32         const char *const models[] = {
  33                 "Onyxi",
  34                 "Onyx-i",
  35                 "d.Pro",
  36                 "Mackie Onyx Satellite",
  37                 "Tapco LINK.firewire 4x6",
  38                 "U.420"};
  39         char model[32];
  40         unsigned int i;
  41         int err;
  42
  43         err = fw_csr_string(unit->directory, CSR_MODEL,
  44                             model, sizeof(model));
  45         if (err < 0)
  46                 return false;
  47
  48         for (i = 0; i < ARRAY_SIZE(models); i++) {
  49                 if (strcmp(models[i], model) == 0)
  50                         break;
  51         }
  52
  53         return (i < ARRAY_SIZE(models));
  54 }
  55
  56 static int name_card(struct snd_oxfw *oxfw)
  57 {
  58         struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
  59         char vendor[24];
  60         char model[32];
  61         const char *d, *v, *m;
  62         u32 firmware;
  63         int err;
  64
  65         /* get vendor name from root directory */
  66         err = fw_csr_string(fw_dev->config_rom + 5, CSR_VENDOR,
  67                             vendor, sizeof(vendor));
  68         if (err < 0)
  69                 goto end;
  70
  71         /* get model name from unit directory */
  72         err = fw_csr_string(oxfw->unit->directory, CSR_MODEL,
  73                             model, sizeof(model));
  74         if (err < 0)
  75                 goto end;
  76
  77         err = snd_fw_transaction(oxfw->unit, TCODE_READ_QUADLET_REQUEST,
  78                                  OXFORD_FIRMWARE_ID_ADDRESS, &firmware, 4, 0);
  79         if (err < 0)
  80                 goto end;
  81         be32_to_cpus(&firmware);
  82
  83         /* to apply card definitions */
  84         if (oxfw->device_info) {
  85                 d = oxfw->device_info->driver_name;
  86                 v = oxfw->device_info->vendor_name;
  87                 m = oxfw->device_info->model_name;
  88         } else {
  89                 d = "OXFW";
  90                 v = vendor;
  91                 m = model;
  92         }
  93
  94         strcpy(oxfw->card->driver, d);
  95         strcpy(oxfw->card->mixername, m);
  96         strcpy(oxfw->card->shortname, m);
  97
  98         snprintf(oxfw->card->longname, sizeof(oxfw->card->longname),
  99                  "%s %s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
 100                  v, m, firmware >> 20, firmware & 0xffff,
 101                  fw_dev->config_rom[3], fw_dev->config_rom[4],
 102                  dev_name(&oxfw->unit->device), 100 << fw_dev->max_speed);
 103 end:
 104         return err;
 105 }
 106
 107 /*
 108  * This module releases the FireWire unit data after all ALSA character devices
 109  * are released by applications. This is for releasing stream data or finishing
 110  * transactions safely. Thus at returning from .remove(), this module still keep
 111  * references for the unit.
 112  */
 113 static void oxfw_card_free(struct snd_card *card)
 114 {
 115         struct snd_oxfw *oxfw = card->private_data;
 116         unsigned int i;
 117
 118         snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
 119         if (oxfw->has_output)
 120                 snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
 121
 122         fw_unit_put(oxfw->unit);
 123
 124         for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
 125                 kfree(oxfw->tx_stream_formats[i]);
 126                 kfree(oxfw->rx_stream_formats[i]);
 127         }
 128
 129         mutex_destroy(&oxfw->mutex);
 130 }
 131
 132 static int oxfw_probe(struct fw_unit *unit,
 133                        const struct ieee1394_device_id *id)
 134 {
 135         struct snd_card *card;
 136         struct snd_oxfw *oxfw;
 137         int err;
 138
 139         if ((id->vendor_id == VENDOR_LOUD) && !detect_loud_models(unit))
 140                 return -ENODEV;
 141
 142         err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
 143                            sizeof(*oxfw), &card);
 144         if (err < 0)
 145                 return err;
 146
 147         card->private_free = oxfw_card_free;
 148         oxfw = card->private_data;
 149         oxfw->card = card;
 150         mutex_init(&oxfw->mutex);
 151         oxfw->unit = fw_unit_get(unit);
 152         oxfw->device_info = (const struct device_info *)id->driver_data;
 153         spin_lock_init(&oxfw->lock);
 154         init_waitqueue_head(&oxfw->hwdep_wait);
 155
 156         err = snd_oxfw_stream_discover(oxfw);
 157         if (err < 0)
 158                 goto error;
 159
 160         err = name_card(oxfw);
 161         if (err < 0)
 162                 goto error;
 163
 164         err = snd_oxfw_create_pcm(oxfw);
 165         if (err < 0)
 166                 goto error;
 167
 168         if (oxfw->device_info) {
 169                 err = snd_oxfw_create_mixer(oxfw);
 170                 if (err < 0)
 171                         goto error;
 172         }
 173
 174         snd_oxfw_proc_init(oxfw);
 175
 176         err = snd_oxfw_create_midi(oxfw);
 177         if (err < 0)
 178                 goto error;
 179
 180         err = snd_oxfw_create_hwdep(oxfw);
 181         if (err < 0)
 182                 goto error;
 183
 184         err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream);
 185         if (err < 0)
 186                 goto error;
 187         if (oxfw->has_output) {
 188                 err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream);
 189                 if (err < 0)
 190                         goto error;
 191         }
 192
 193         err = snd_card_register(card);
 194         if (err < 0) {
 195                 snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
 196                 if (oxfw->has_output)
 197                         snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
 198                 goto error;
 199         }
 200         dev_set_drvdata(&unit->device, oxfw);
 201
 202         return 0;
 203 error:
 204         snd_card_free(card);
 205         return err;
 206 }
 207
 208 static void oxfw_bus_reset(struct fw_unit *unit)
 209 {
 210         struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
 211
 212         fcp_bus_reset(oxfw->unit);
 213
 214         mutex_lock(&oxfw->mutex);
 215
 216         snd_oxfw_stream_update_simplex(oxfw, &oxfw->rx_stream);
 217         if (oxfw->has_output)
 218                 snd_oxfw_stream_update_simplex(oxfw, &oxfw->tx_stream);
 219
 220         mutex_unlock(&oxfw->mutex);
 221 }
 222
 223 static void oxfw_remove(struct fw_unit *unit)
 224 {
 225         struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
 226
 227         /* No need to wait for releasing card object in this context. */
 228         snd_card_free_when_closed(oxfw->card);
 229 }
 230
 231 static const struct device_info griffin_firewave = {
 232         .driver_name = "FireWave",
 233         .vendor_name = "Griffin",
 234         .model_name = "FireWave",
 235         .mixer_channels = 6,
 236         .mute_fb_id   = 0x01,
 237         .volume_fb_id = 0x02,
 238 };
 239
 240 static const struct device_info lacie_speakers = {
 241         .driver_name = "FWSpeakers",
 242         .vendor_name = "LaCie",
 243         .model_name = "FireWire Speakers",
 244         .mixer_channels = 1,
 245         .mute_fb_id   = 0x01,
 246         .volume_fb_id = 0x01,
 247 };
 248
 249 static const struct ieee1394_device_id oxfw_id_table[] = {
 250         {
 251                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 252                                 IEEE1394_MATCH_MODEL_ID |
 253                                 IEEE1394_MATCH_SPECIFIER_ID |
 254                                 IEEE1394_MATCH_VERSION,
 255                 .vendor_id    = VENDOR_GRIFFIN,
 256                 .model_id     = 0x00f970,
 257                 .specifier_id = SPECIFIER_1394TA,
 258                 .version      = VERSION_AVC,
 259                 .driver_data  = (kernel_ulong_t)&griffin_firewave,
 260         },
 261         {
 262                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 263                                 IEEE1394_MATCH_MODEL_ID |
 264                                 IEEE1394_MATCH_SPECIFIER_ID |
 265                                 IEEE1394_MATCH_VERSION,
 266                 .vendor_id    = VENDOR_LACIE,
 267                 .model_id     = 0x00f970,
 268                 .specifier_id = SPECIFIER_1394TA,
 269                 .version      = VERSION_AVC,
 270                 .driver_data  = (kernel_ulong_t)&lacie_speakers,
 271         },
 272         /* Behringer,F-Control Audio 202 */
 273         {
 274                 .match_flags    = IEEE1394_MATCH_VENDOR_ID |
 275                                   IEEE1394_MATCH_MODEL_ID,
 276                 .vendor_id      = VENDOR_BEHRINGER,
 277                 .model_id       = 0x00fc22,
 278         },
 279         /*
 280          * Any Mackie(Loud) models (name string/model id):
 281          *  Onyx-i series (former models):      0x081216
 282          *  Mackie Onyx Satellite:              0x00200f
 283          *  Tapco LINK.firewire 4x6:            0x000460
 284          *  d.2 pro:                            Unknown
 285          *  d.4 pro:                            Unknown
 286          *  U.420:                              Unknown
 287          *  U.420d:                             Unknown
 288          */
 289         {
 290                 .match_flags    = IEEE1394_MATCH_VENDOR_ID |
 291                                   IEEE1394_MATCH_SPECIFIER_ID |
 292                                   IEEE1394_MATCH_VERSION,
 293                 .vendor_id      = VENDOR_LOUD,
 294                 .specifier_id   = SPECIFIER_1394TA,
 295                 .version        = VERSION_AVC,
 296         },
 297         { }
 298 };
 299 MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);
 300
 301 static struct fw_driver oxfw_driver = {
 302         .driver   = {
 303                 .owner  = THIS_MODULE,
 304                 .name   = KBUILD_MODNAME,
 305                 .bus    = &fw_bus_type,
 306         },
 307         .probe    = oxfw_probe,
 308         .update   = oxfw_bus_reset,
 309         .remove   = oxfw_remove,
 310         .id_table = oxfw_id_table,
 311 };
 312
 313 static int __init snd_oxfw_init(void)
 314 {
 315         return driver_register(&oxfw_driver.driver);
 316 }
 317
 318 static void __exit snd_oxfw_exit(void)
 319 {
 320         driver_unregister(&oxfw_driver.driver);
 321 }
 322
 323 module_init(snd_oxfw_init);
 324 module_exit(snd_oxfw_exit);