sound/firewire/speakers.c

   1 /*
   2  * OXFW970-based speakers driver
   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 <linux/device.h>
   9 #include <linux/firewire.h>
  10 #include <linux/firewire-constants.h>
  11 #include <linux/module.h>
  12 #include <linux/mod_devicetable.h>
  13 #include <linux/mutex.h>
  14 #include <linux/slab.h>
  15 #include <sound/control.h>
  16 #include <sound/core.h>
  17 #include <sound/initval.h>
  18 #include <sound/pcm.h>
  19 #include <sound/pcm_params.h>
  20 #include "cmp.h"
  21 #include "fcp.h"
  22 #include "amdtp.h"
  23 #include "lib.h"
  24
  25 #define OXFORD_FIRMWARE_ID_ADDRESS      (CSR_REGISTER_BASE + 0x50000)
  26 /* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */
  27
  28 #define OXFORD_HARDWARE_ID_ADDRESS      (CSR_REGISTER_BASE + 0x90020)
  29 #define OXFORD_HARDWARE_ID_OXFW970      0x39443841
  30 #define OXFORD_HARDWARE_ID_OXFW971      0x39373100
  31
  32 #define VENDOR_GRIFFIN          0x001292
  33 #define VENDOR_LACIE            0x00d04b
  34
  35 #define SPECIFIER_1394TA        0x00a02d
  36 #define VERSION_AVC             0x010001
  37
  38 struct device_info {
  39         const char *driver_name;
  40         const char *short_name;
  41         const char *long_name;
  42         int (*pcm_constraints)(struct snd_pcm_runtime *runtime);
  43         unsigned int mixer_channels;
  44         u8 mute_fb_id;
  45         u8 volume_fb_id;
  46 };
  47
  48 struct fwspk {
  49         struct snd_card *card;
  50         struct fw_unit *unit;
  51         const struct device_info *device_info;
  52         struct mutex mutex;
  53         struct cmp_connection connection;
  54         struct amdtp_stream stream;
  55         bool mute;
  56         s16 volume[6];
  57         s16 volume_min;
  58         s16 volume_max;
  59 };
  60
  61 MODULE_DESCRIPTION("FireWire speakers driver");
  62 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  63 MODULE_LICENSE("GPL v2");
  64
  65 static int firewave_rate_constraint(struct snd_pcm_hw_params *params,
  66                                     struct snd_pcm_hw_rule *rule)
  67 {
  68         static unsigned int stereo_rates[] = { 48000, 96000 };
  69         struct snd_interval *channels =
  70                         hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
  71         struct snd_interval *rate =
  72                         hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
  73
  74         /* two channels work only at 48/96 kHz */
  75         if (snd_interval_max(channels) < 6)
  76                 return snd_interval_list(rate, 2, stereo_rates, 0);
  77         return 0;
  78 }
  79
  80 static int firewave_channels_constraint(struct snd_pcm_hw_params *params,
  81                                         struct snd_pcm_hw_rule *rule)
  82 {
  83         static const struct snd_interval all_channels = { .min = 6, .max = 6 };
  84         struct snd_interval *rate =
  85                         hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
  86         struct snd_interval *channels =
  87                         hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
  88
  89         /* 32/44.1 kHz work only with all six channels */
  90         if (snd_interval_max(rate) < 48000)
  91                 return snd_interval_refine(channels, &all_channels);
  92         return 0;
  93 }
  94
  95 static int firewave_constraints(struct snd_pcm_runtime *runtime)
  96 {
  97         static unsigned int channels_list[] = { 2, 6 };
  98         static struct snd_pcm_hw_constraint_list channels_list_constraint = {
  99                 .count = 2,
 100                 .list = channels_list,
 101         };
 102         int err;
 103
 104         runtime->hw.rates = SNDRV_PCM_RATE_32000 |
 105                             SNDRV_PCM_RATE_44100 |
 106                             SNDRV_PCM_RATE_48000 |
 107                             SNDRV_PCM_RATE_96000;
 108         runtime->hw.channels_max = 6;
 109
 110         err = snd_pcm_hw_constraint_list(runtime, 0,
 111                                          SNDRV_PCM_HW_PARAM_CHANNELS,
 112                                          &channels_list_constraint);
 113         if (err < 0)
 114                 return err;
 115         err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 116                                   firewave_rate_constraint, NULL,
 117                                   SNDRV_PCM_HW_PARAM_CHANNELS, -1);
 118         if (err < 0)
 119                 return err;
 120         err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 121                                   firewave_channels_constraint, NULL,
 122                                   SNDRV_PCM_HW_PARAM_RATE, -1);
 123         if (err < 0)
 124                 return err;
 125
 126         return 0;
 127 }
 128
 129 static int lacie_speakers_constraints(struct snd_pcm_runtime *runtime)
 130 {
 131         runtime->hw.rates = SNDRV_PCM_RATE_32000 |
 132                             SNDRV_PCM_RATE_44100 |
 133                             SNDRV_PCM_RATE_48000 |
 134                             SNDRV_PCM_RATE_88200 |
 135                             SNDRV_PCM_RATE_96000;
 136
 137         return 0;
 138 }
 139
 140 static int fwspk_open(struct snd_pcm_substream *substream)
 141 {
 142         static const struct snd_pcm_hardware hardware = {
 143                 .info = SNDRV_PCM_INFO_MMAP |
 144                         SNDRV_PCM_INFO_MMAP_VALID |
 145                         SNDRV_PCM_INFO_BATCH |
 146                         SNDRV_PCM_INFO_INTERLEAVED |
 147                         SNDRV_PCM_INFO_BLOCK_TRANSFER,
 148                 .formats = AMDTP_OUT_PCM_FORMAT_BITS,
 149                 .channels_min = 2,
 150                 .channels_max = 2,
 151                 .buffer_bytes_max = 4 * 1024 * 1024,
 152                 .period_bytes_min = 1,
 153                 .period_bytes_max = UINT_MAX,
 154                 .periods_min = 1,
 155                 .periods_max = UINT_MAX,
 156         };
 157         struct fwspk *fwspk = substream->private_data;
 158         struct snd_pcm_runtime *runtime = substream->runtime;
 159         int err;
 160
 161         runtime->hw = hardware;
 162
 163         err = fwspk->device_info->pcm_constraints(runtime);
 164         if (err < 0)
 165                 return err;
 166         err = snd_pcm_limit_hw_rates(runtime);
 167         if (err < 0)
 168                 return err;
 169
 170         err = amdtp_stream_add_pcm_hw_constraints(&fwspk->stream, runtime);
 171         if (err < 0)
 172                 return err;
 173
 174         return 0;
 175 }
 176
 177 static int fwspk_close(struct snd_pcm_substream *substream)
 178 {
 179         return 0;
 180 }
 181
 182 static void fwspk_stop_stream(struct fwspk *fwspk)
 183 {
 184         if (amdtp_stream_running(&fwspk->stream)) {
 185                 amdtp_stream_stop(&fwspk->stream);
 186                 cmp_connection_break(&fwspk->connection);
 187         }
 188 }
 189
 190 static int fwspk_hw_params(struct snd_pcm_substream *substream,
 191                            struct snd_pcm_hw_params *hw_params)
 192 {
 193         struct fwspk *fwspk = substream->private_data;
 194         int err;
 195
 196         mutex_lock(&fwspk->mutex);
 197         fwspk_stop_stream(fwspk);
 198         mutex_unlock(&fwspk->mutex);
 199
 200         err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
 201                                                params_buffer_bytes(hw_params));
 202         if (err < 0)
 203                 goto error;
 204
 205         amdtp_stream_set_parameters(&fwspk->stream,
 206                                     params_rate(hw_params),
 207                                     params_channels(hw_params),
 208                                     0);
 209
 210         amdtp_stream_set_pcm_format(&fwspk->stream,
 211                                     params_format(hw_params));
 212
 213         err = avc_general_set_sig_fmt(fwspk->unit, params_rate(hw_params),
 214                                       AVC_GENERAL_PLUG_DIR_IN, 0);
 215         if (err < 0) {
 216                 dev_err(&fwspk->unit->device, "failed to set sample rate\n");
 217                 goto err_buffer;
 218         }
 219
 220         return 0;
 221
 222 err_buffer:
 223         snd_pcm_lib_free_vmalloc_buffer(substream);
 224 error:
 225         return err;
 226 }
 227
 228 static int fwspk_hw_free(struct snd_pcm_substream *substream)
 229 {
 230         struct fwspk *fwspk = substream->private_data;
 231
 232         mutex_lock(&fwspk->mutex);
 233         fwspk_stop_stream(fwspk);
 234         mutex_unlock(&fwspk->mutex);
 235
 236         return snd_pcm_lib_free_vmalloc_buffer(substream);
 237 }
 238
 239 static int fwspk_prepare(struct snd_pcm_substream *substream)
 240 {
 241         struct fwspk *fwspk = substream->private_data;
 242         int err;
 243
 244         mutex_lock(&fwspk->mutex);
 245
 246         if (amdtp_streaming_error(&fwspk->stream))
 247                 fwspk_stop_stream(fwspk);
 248
 249         if (!amdtp_stream_running(&fwspk->stream)) {
 250                 err = cmp_connection_establish(&fwspk->connection,
 251                         amdtp_stream_get_max_payload(&fwspk->stream));
 252                 if (err < 0)
 253                         goto err_mutex;
 254
 255                 err = amdtp_stream_start(&fwspk->stream,
 256                                          fwspk->connection.resources.channel,
 257                                          fwspk->connection.speed);
 258                 if (err < 0)
 259                         goto err_connection;
 260         }
 261
 262         mutex_unlock(&fwspk->mutex);
 263
 264         amdtp_stream_pcm_prepare(&fwspk->stream);
 265
 266         return 0;
 267
 268 err_connection:
 269         cmp_connection_break(&fwspk->connection);
 270 err_mutex:
 271         mutex_unlock(&fwspk->mutex);
 272
 273         return err;
 274 }
 275
 276 static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
 277 {
 278         struct fwspk *fwspk = substream->private_data;
 279         struct snd_pcm_substream *pcm;
 280
 281         switch (cmd) {
 282         case SNDRV_PCM_TRIGGER_START:
 283                 pcm = substream;
 284                 break;
 285         case SNDRV_PCM_TRIGGER_STOP:
 286                 pcm = NULL;
 287                 break;
 288         default:
 289                 return -EINVAL;
 290         }
 291         amdtp_stream_pcm_trigger(&fwspk->stream, pcm);
 292         return 0;
 293 }
 294
 295 static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
 296 {
 297         struct fwspk *fwspk = substream->private_data;
 298
 299         return amdtp_stream_pcm_pointer(&fwspk->stream);
 300 }
 301
 302 static int fwspk_create_pcm(struct fwspk *fwspk)
 303 {
 304         static struct snd_pcm_ops ops = {
 305                 .open      = fwspk_open,
 306                 .close     = fwspk_close,
 307                 .ioctl     = snd_pcm_lib_ioctl,
 308                 .hw_params = fwspk_hw_params,
 309                 .hw_free   = fwspk_hw_free,
 310                 .prepare   = fwspk_prepare,
 311                 .trigger   = fwspk_trigger,
 312                 .pointer   = fwspk_pointer,
 313                 .page      = snd_pcm_lib_get_vmalloc_page,
 314                 .mmap      = snd_pcm_lib_mmap_vmalloc,
 315         };
 316         struct snd_pcm *pcm;
 317         int err;
 318
 319         err = snd_pcm_new(fwspk->card, "OXFW970", 0, 1, 0, &pcm);
 320         if (err < 0)
 321                 return err;
 322         pcm->private_data = fwspk;
 323         strcpy(pcm->name, fwspk->device_info->short_name);
 324         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops);
 325         return 0;
 326 }
 327
 328 enum control_action { CTL_READ, CTL_WRITE };
 329 enum control_attribute {
 330         CTL_MIN         = 0x02,
 331         CTL_MAX         = 0x03,
 332         CTL_CURRENT     = 0x10,
 333 };
 334
 335 static int fwspk_mute_command(struct fwspk *fwspk, bool *value,
 336                               enum control_action action)
 337 {
 338         u8 *buf;
 339         u8 response_ok;
 340         int err;
 341
 342         buf = kmalloc(11, GFP_KERNEL);
 343         if (!buf)
 344                 return -ENOMEM;
 345
 346         if (action == CTL_READ) {
 347                 buf[0] = 0x01;          /* AV/C, STATUS */
 348                 response_ok = 0x0c;     /*       STABLE */
 349         } else {
 350                 buf[0] = 0x00;          /* AV/C, CONTROL */
 351                 response_ok = 0x09;     /*       ACCEPTED */
 352         }
 353         buf[1] = 0x08;                  /* audio unit 0 */
 354         buf[2] = 0xb8;                  /* FUNCTION BLOCK */
 355         buf[3] = 0x81;                  /* function block type: feature */
 356         buf[4] = fwspk->device_info->mute_fb_id; /* function block ID */
 357         buf[5] = 0x10;                  /* control attribute: current */
 358         buf[6] = 0x02;                  /* selector length */
 359         buf[7] = 0x00;                  /* audio channel number */
 360         buf[8] = 0x01;                  /* control selector: mute */
 361         buf[9] = 0x01;                  /* control data length */
 362         if (action == CTL_READ)
 363                 buf[10] = 0xff;
 364         else
 365                 buf[10] = *value ? 0x70 : 0x60;
 366
 367         err = fcp_avc_transaction(fwspk->unit, buf, 11, buf, 11, 0x3fe);
 368         if (err < 0)
 369                 goto error;
 370         if (err < 11) {
 371                 dev_err(&fwspk->unit->device, "short FCP response\n");
 372                 err = -EIO;
 373                 goto error;
 374         }
 375         if (buf[0] != response_ok) {
 376                 dev_err(&fwspk->unit->device, "mute command failed\n");
 377                 err = -EIO;
 378                 goto error;
 379         }
 380         if (action == CTL_READ)
 381                 *value = buf[10] == 0x70;
 382
 383         err = 0;
 384
 385 error:
 386         kfree(buf);
 387
 388         return err;
 389 }
 390
 391 static int fwspk_volume_command(struct fwspk *fwspk, s16 *value,
 392                                 unsigned int channel,
 393                                 enum control_attribute attribute,
 394                                 enum control_action action)
 395 {
 396         u8 *buf;
 397         u8 response_ok;
 398         int err;
 399
 400         buf = kmalloc(12, GFP_KERNEL);
 401         if (!buf)
 402                 return -ENOMEM;
 403
 404         if (action == CTL_READ) {
 405                 buf[0] = 0x01;          /* AV/C, STATUS */
 406                 response_ok = 0x0c;     /*       STABLE */
 407         } else {
 408                 buf[0] = 0x00;          /* AV/C, CONTROL */
 409                 response_ok = 0x09;     /*       ACCEPTED */
 410         }
 411         buf[1] = 0x08;                  /* audio unit 0 */
 412         buf[2] = 0xb8;                  /* FUNCTION BLOCK */
 413         buf[3] = 0x81;                  /* function block type: feature */
 414         buf[4] = fwspk->device_info->volume_fb_id; /* function block ID */
 415         buf[5] = attribute;             /* control attribute */
 416         buf[6] = 0x02;                  /* selector length */
 417         buf[7] = channel;               /* audio channel number */
 418         buf[8] = 0x02;                  /* control selector: volume */
 419         buf[9] = 0x02;                  /* control data length */
 420         if (action == CTL_READ) {
 421                 buf[10] = 0xff;
 422                 buf[11] = 0xff;
 423         } else {
 424                 buf[10] = *value >> 8;
 425                 buf[11] = *value;
 426         }
 427
 428         err = fcp_avc_transaction(fwspk->unit, buf, 12, buf, 12, 0x3fe);
 429         if (err < 0)
 430                 goto error;
 431         if (err < 12) {
 432                 dev_err(&fwspk->unit->device, "short FCP response\n");
 433                 err = -EIO;
 434                 goto error;
 435         }
 436         if (buf[0] != response_ok) {
 437                 dev_err(&fwspk->unit->device, "volume command failed\n");
 438                 err = -EIO;
 439                 goto error;
 440         }
 441         if (action == CTL_READ)
 442                 *value = (buf[10] << 8) | buf[11];
 443
 444         err = 0;
 445
 446 error:
 447         kfree(buf);
 448
 449         return err;
 450 }
 451
 452 static int fwspk_mute_get(struct snd_kcontrol *control,
 453                           struct snd_ctl_elem_value *value)
 454 {
 455         struct fwspk *fwspk = control->private_data;
 456
 457         value->value.integer.value[0] = !fwspk->mute;
 458
 459         return 0;
 460 }
 461
 462 static int fwspk_mute_put(struct snd_kcontrol *control,
 463                           struct snd_ctl_elem_value *value)
 464 {
 465         struct fwspk *fwspk = control->private_data;
 466         bool mute;
 467         int err;
 468
 469         mute = !value->value.integer.value[0];
 470
 471         if (mute == fwspk->mute)
 472                 return 0;
 473
 474         err = fwspk_mute_command(fwspk, &mute, CTL_WRITE);
 475         if (err < 0)
 476                 return err;
 477         fwspk->mute = mute;
 478
 479         return 1;
 480 }
 481
 482 static int fwspk_volume_info(struct snd_kcontrol *control,
 483                              struct snd_ctl_elem_info *info)
 484 {
 485         struct fwspk *fwspk = control->private_data;
 486
 487         info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 488         info->count = fwspk->device_info->mixer_channels;
 489         info->value.integer.min = fwspk->volume_min;
 490         info->value.integer.max = fwspk->volume_max;
 491
 492         return 0;
 493 }
 494
 495 static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 };
 496
 497 static int fwspk_volume_get(struct snd_kcontrol *control,
 498                             struct snd_ctl_elem_value *value)
 499 {
 500         struct fwspk *fwspk = control->private_data;
 501         unsigned int i;
 502
 503         for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
 504                 value->value.integer.value[channel_map[i]] = fwspk->volume[i];
 505
 506         return 0;
 507 }
 508
 509 static int fwspk_volume_put(struct snd_kcontrol *control,
 510                           struct snd_ctl_elem_value *value)
 511 {
 512         struct fwspk *fwspk = control->private_data;
 513         unsigned int i, changed_channels;
 514         bool equal_values = true;
 515         s16 volume;
 516         int err;
 517
 518         for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
 519                 if (value->value.integer.value[i] < fwspk->volume_min ||
 520                     value->value.integer.value[i] > fwspk->volume_max)
 521                         return -EINVAL;
 522                 if (value->value.integer.value[i] !=
 523                     value->value.integer.value[0])
 524                         equal_values = false;
 525         }
 526
 527         changed_channels = 0;
 528         for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
 529                 if (value->value.integer.value[channel_map[i]] !=
 530                                                         fwspk->volume[i])
 531                         changed_channels |= 1 << (i + 1);
 532
 533         if (equal_values && changed_channels != 0)
 534                 changed_channels = 1 << 0;
 535
 536         for (i = 0; i <= fwspk->device_info->mixer_channels; ++i) {
 537                 volume = value->value.integer.value[channel_map[i ? i - 1 : 0]];
 538                 if (changed_channels & (1 << i)) {
 539                         err = fwspk_volume_command(fwspk, &volume, i,
 540                                                    CTL_CURRENT, CTL_WRITE);
 541                         if (err < 0)
 542                                 return err;
 543                 }
 544                 if (i > 0)
 545                         fwspk->volume[i - 1] = volume;
 546         }
 547
 548         return changed_channels != 0;
 549 }
 550
 551 static int fwspk_create_mixer(struct fwspk *fwspk)
 552 {
 553         static const struct snd_kcontrol_new controls[] = {
 554                 {
 555                         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 556                         .name = "PCM Playback Switch",
 557                         .info = snd_ctl_boolean_mono_info,
 558                         .get = fwspk_mute_get,
 559                         .put = fwspk_mute_put,
 560                 },
 561                 {
 562                         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 563                         .name = "PCM Playback Volume",
 564                         .info = fwspk_volume_info,
 565                         .get = fwspk_volume_get,
 566                         .put = fwspk_volume_put,
 567                 },
 568         };
 569         unsigned int i, first_ch;
 570         int err;
 571
 572         err = fwspk_volume_command(fwspk, &fwspk->volume_min,
 573                                    0, CTL_MIN, CTL_READ);
 574         if (err < 0)
 575                 return err;
 576         err = fwspk_volume_command(fwspk, &fwspk->volume_max,
 577                                    0, CTL_MAX, CTL_READ);
 578         if (err < 0)
 579                 return err;
 580
 581         err = fwspk_mute_command(fwspk, &fwspk->mute, CTL_READ);
 582         if (err < 0)
 583                 return err;
 584
 585         first_ch = fwspk->device_info->mixer_channels == 1 ? 0 : 1;
 586         for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
 587                 err = fwspk_volume_command(fwspk, &fwspk->volume[i],
 588                                            first_ch + i, CTL_CURRENT, CTL_READ);
 589                 if (err < 0)
 590                         return err;
 591         }
 592
 593         for (i = 0; i < ARRAY_SIZE(controls); ++i) {
 594                 err = snd_ctl_add(fwspk->card,
 595                                   snd_ctl_new1(&controls[i], fwspk));
 596                 if (err < 0)
 597                         return err;
 598         }
 599
 600         return 0;
 601 }
 602
 603 static u32 fwspk_read_firmware_version(struct fw_unit *unit)
 604 {
 605         __be32 data;
 606         int err;
 607
 608         err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
 609                                  OXFORD_FIRMWARE_ID_ADDRESS, &data, 4, 0);
 610         return err >= 0 ? be32_to_cpu(data) : 0;
 611 }
 612
 613 static void fwspk_card_free(struct snd_card *card)
 614 {
 615         struct fwspk *fwspk = card->private_data;
 616
 617         amdtp_stream_destroy(&fwspk->stream);
 618         cmp_connection_destroy(&fwspk->connection);
 619         fw_unit_put(fwspk->unit);
 620         mutex_destroy(&fwspk->mutex);
 621 }
 622
 623 static int fwspk_probe(struct fw_unit *unit,
 624                        const struct ieee1394_device_id *id)
 625 {
 626         struct fw_device *fw_dev = fw_parent_device(unit);
 627         struct snd_card *card;
 628         struct fwspk *fwspk;
 629         u32 firmware;
 630         int err;
 631
 632         err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
 633                            sizeof(*fwspk), &card);
 634         if (err < 0)
 635                 return err;
 636
 637         fwspk = card->private_data;
 638         fwspk->card = card;
 639         mutex_init(&fwspk->mutex);
 640         fwspk->unit = fw_unit_get(unit);
 641         fwspk->device_info = (const struct device_info *)id->driver_data;
 642
 643         err = cmp_connection_init(&fwspk->connection, unit, CMP_INPUT, 0);
 644         if (err < 0)
 645                 goto err_unit;
 646
 647         err = amdtp_stream_init(&fwspk->stream, unit, AMDTP_OUT_STREAM,
 648                                 CIP_NONBLOCKING);
 649         if (err < 0)
 650                 goto err_connection;
 651
 652         card->private_free = fwspk_card_free;
 653
 654         strcpy(card->driver, fwspk->device_info->driver_name);
 655         strcpy(card->shortname, fwspk->device_info->short_name);
 656         firmware = fwspk_read_firmware_version(unit);
 657         snprintf(card->longname, sizeof(card->longname),
 658                  "%s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
 659                  fwspk->device_info->long_name,
 660                  firmware >> 20, firmware & 0xffff,
 661                  fw_dev->config_rom[3], fw_dev->config_rom[4],
 662                  dev_name(&unit->device), 100 << fw_dev->max_speed);
 663         strcpy(card->mixername, "OXFW970");
 664
 665         err = fwspk_create_pcm(fwspk);
 666         if (err < 0)
 667                 goto error;
 668
 669         err = fwspk_create_mixer(fwspk);
 670         if (err < 0)
 671                 goto error;
 672
 673         err = snd_card_register(card);
 674         if (err < 0)
 675                 goto error;
 676
 677         dev_set_drvdata(&unit->device, fwspk);
 678
 679         return 0;
 680
 681 err_connection:
 682         cmp_connection_destroy(&fwspk->connection);
 683 err_unit:
 684         fw_unit_put(fwspk->unit);
 685         mutex_destroy(&fwspk->mutex);
 686 error:
 687         snd_card_free(card);
 688         return err;
 689 }
 690
 691 static void fwspk_bus_reset(struct fw_unit *unit)
 692 {
 693         struct fwspk *fwspk = dev_get_drvdata(&unit->device);
 694
 695         fcp_bus_reset(fwspk->unit);
 696
 697         if (cmp_connection_update(&fwspk->connection) < 0) {
 698                 amdtp_stream_pcm_abort(&fwspk->stream);
 699                 mutex_lock(&fwspk->mutex);
 700                 fwspk_stop_stream(fwspk);
 701                 mutex_unlock(&fwspk->mutex);
 702                 return;
 703         }
 704
 705         amdtp_stream_update(&fwspk->stream);
 706 }
 707
 708 static void fwspk_remove(struct fw_unit *unit)
 709 {
 710         struct fwspk *fwspk = dev_get_drvdata(&unit->device);
 711
 712         amdtp_stream_pcm_abort(&fwspk->stream);
 713         snd_card_disconnect(fwspk->card);
 714
 715         mutex_lock(&fwspk->mutex);
 716         fwspk_stop_stream(fwspk);
 717         mutex_unlock(&fwspk->mutex);
 718
 719         snd_card_free_when_closed(fwspk->card);
 720 }
 721
 722 static const struct device_info griffin_firewave = {
 723         .driver_name = "FireWave",
 724         .short_name  = "FireWave",
 725         .long_name   = "Griffin FireWave Surround",
 726         .pcm_constraints = firewave_constraints,
 727         .mixer_channels = 6,
 728         .mute_fb_id   = 0x01,
 729         .volume_fb_id = 0x02,
 730 };
 731
 732 static const struct device_info lacie_speakers = {
 733         .driver_name = "FWSpeakers",
 734         .short_name  = "FireWire Speakers",
 735         .long_name   = "LaCie FireWire Speakers",
 736         .pcm_constraints = lacie_speakers_constraints,
 737         .mixer_channels = 1,
 738         .mute_fb_id   = 0x01,
 739         .volume_fb_id = 0x01,
 740 };
 741
 742 static const struct ieee1394_device_id fwspk_id_table[] = {
 743         {
 744                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 745                                 IEEE1394_MATCH_MODEL_ID |
 746                                 IEEE1394_MATCH_SPECIFIER_ID |
 747                                 IEEE1394_MATCH_VERSION,
 748                 .vendor_id    = VENDOR_GRIFFIN,
 749                 .model_id     = 0x00f970,
 750                 .specifier_id = SPECIFIER_1394TA,
 751                 .version      = VERSION_AVC,
 752                 .driver_data  = (kernel_ulong_t)&griffin_firewave,
 753         },
 754         {
 755                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 756                                 IEEE1394_MATCH_MODEL_ID |
 757                                 IEEE1394_MATCH_SPECIFIER_ID |
 758                                 IEEE1394_MATCH_VERSION,
 759                 .vendor_id    = VENDOR_LACIE,
 760                 .model_id     = 0x00f970,
 761                 .specifier_id = SPECIFIER_1394TA,
 762                 .version      = VERSION_AVC,
 763                 .driver_data  = (kernel_ulong_t)&lacie_speakers,
 764         },
 765         { }
 766 };
 767 MODULE_DEVICE_TABLE(ieee1394, fwspk_id_table);
 768
 769 static struct fw_driver fwspk_driver = {
 770         .driver   = {
 771                 .owner  = THIS_MODULE,
 772                 .name   = KBUILD_MODNAME,
 773                 .bus    = &fw_bus_type,
 774         },
 775         .probe    = fwspk_probe,
 776         .update   = fwspk_bus_reset,
 777         .remove   = fwspk_remove,
 778         .id_table = fwspk_id_table,
 779 };
 780
 781 static int __init alsa_fwspk_init(void)
 782 {
 783         return driver_register(&fwspk_driver.driver);
 784 }
 785
 786 static void __exit alsa_fwspk_exit(void)
 787 {
 788         driver_unregister(&fwspk_driver.driver);
 789 }
 790
 791 module_init(alsa_fwspk_init);
 792 module_exit(alsa_fwspk_exit);