git.oblomov.eu Git - linux-2.6/blob - sound/pci/echoaudio/echoaudio.c

   1 /*
   2  *  ALSA driver for Echoaudio soundcards.
   3  *  Copyright (C) 2003-2004 Giuliano Pochini <pochini@shiny.it>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; version 2 of the License.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  */
  18
  19 MODULE_AUTHOR("Giuliano Pochini <pochini@shiny.it>");
  20 MODULE_LICENSE("GPL v2");
  21 MODULE_DESCRIPTION("Echoaudio " ECHOCARD_NAME " soundcards driver");
  22 MODULE_SUPPORTED_DEVICE("{{Echoaudio," ECHOCARD_NAME "}}");
  23 MODULE_DEVICE_TABLE(pci, snd_echo_ids);
  24
  25 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  26 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  27 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  28
  29 module_param_array(index, int, NULL, 0444);
  30 MODULE_PARM_DESC(index, "Index value for " ECHOCARD_NAME " soundcard.");
  31 module_param_array(id, charp, NULL, 0444);
  32 MODULE_PARM_DESC(id, "ID string for " ECHOCARD_NAME " soundcard.");
  33 module_param_array(enable, bool, NULL, 0444);
  34 MODULE_PARM_DESC(enable, "Enable " ECHOCARD_NAME " soundcard.");
  35
  36 static unsigned int channels_list[10] = {1, 2, 4, 6, 8, 10, 12, 14, 16, 999999};
  37 static const DECLARE_TLV_DB_SCALE(db_scale_output_gain, -12800, 100, 1);
  38
  39 static int get_firmware(const struct firmware **fw_entry,
  40                         const struct firmware *frm, struct echoaudio *chip)
  41 {
  42         int err;
  43         char name[30];
  44         DE_ACT(("firmware requested: %s\n", frm->data));
  45         snprintf(name, sizeof(name), "ea/%s", frm->data);
  46         if ((err = request_firmware(fw_entry, name, pci_device(chip))) < 0)
  47                 snd_printk(KERN_ERR "get_firmware(): Firmware not available (%d)\n", err);
  48         return err;
  49 }
  50
  51 static void free_firmware(const struct firmware *fw_entry)
  52 {
  53         release_firmware(fw_entry);
  54         DE_ACT(("firmware released\n"));
  55 }
  56
  57
  58
  59 /******************************************************************************
  60         PCM interface
  61 ******************************************************************************/
  62
  63 static void audiopipe_free(struct snd_pcm_runtime *runtime)
  64 {
  65         struct audiopipe *pipe = runtime->private_data;
  66
  67         if (pipe->sgpage.area)
  68                 snd_dma_free_pages(&pipe->sgpage);
  69         kfree(pipe);
  70 }
  71
  72
  73
  74 static int hw_rule_capture_format_by_channels(struct snd_pcm_hw_params *params,
  75                                               struct snd_pcm_hw_rule *rule)
  76 {
  77         struct snd_interval *c = hw_param_interval(params,
  78                                                    SNDRV_PCM_HW_PARAM_CHANNELS);
  79         struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
  80         struct snd_mask fmt;
  81
  82         snd_mask_any(&fmt);
  83
  84 #ifndef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
  85         /* >=2 channels cannot be S32_BE */
  86         if (c->min == 2) {
  87                 fmt.bits[0] &= ~SNDRV_PCM_FMTBIT_S32_BE;
  88                 return snd_mask_refine(f, &fmt);
  89         }
  90 #endif
  91         /* > 2 channels cannot be U8 and S32_BE */
  92         if (c->min > 2) {
  93                 fmt.bits[0] &= ~(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_BE);
  94                 return snd_mask_refine(f, &fmt);
  95         }
  96         /* Mono is ok with any format */
  97         return 0;
  98 }
  99
 100
 101
 102 static int hw_rule_capture_channels_by_format(struct snd_pcm_hw_params *params,
 103                                               struct snd_pcm_hw_rule *rule)
 104 {
 105         struct snd_interval *c = hw_param_interval(params,
 106                                                    SNDRV_PCM_HW_PARAM_CHANNELS);
 107         struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 108         struct snd_interval ch;
 109
 110         snd_interval_any(&ch);
 111
 112         /* S32_BE is mono (and stereo) only */
 113         if (f->bits[0] == SNDRV_PCM_FMTBIT_S32_BE) {
 114                 ch.min = 1;
 115 #ifdef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
 116                 ch.max = 2;
 117 #else
 118                 ch.max = 1;
 119 #endif
 120                 ch.integer = 1;
 121                 return snd_interval_refine(c, &ch);
 122         }
 123         /* U8 can be only mono or stereo */
 124         if (f->bits[0] == SNDRV_PCM_FMTBIT_U8) {
 125                 ch.min = 1;
 126                 ch.max = 2;
 127                 ch.integer = 1;
 128                 return snd_interval_refine(c, &ch);
 129         }
 130         /* S16_LE, S24_3LE and S32_LE support any number of channels. */
 131         return 0;
 132 }
 133
 134
 135
 136 static int hw_rule_playback_format_by_channels(struct snd_pcm_hw_params *params,
 137                                                struct snd_pcm_hw_rule *rule)
 138 {
 139         struct snd_interval *c = hw_param_interval(params,
 140                                                    SNDRV_PCM_HW_PARAM_CHANNELS);
 141         struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 142         struct snd_mask fmt;
 143         u64 fmask;
 144         snd_mask_any(&fmt);
 145
 146         fmask = fmt.bits[0] + ((u64)fmt.bits[1] << 32);
 147
 148         /* >2 channels must be S16_LE, S24_3LE or S32_LE */
 149         if (c->min > 2) {
 150                 fmask &= SNDRV_PCM_FMTBIT_S16_LE |
 151                          SNDRV_PCM_FMTBIT_S24_3LE |
 152                          SNDRV_PCM_FMTBIT_S32_LE;
 153         /* 1 channel must be S32_BE or S32_LE */
 154         } else if (c->max == 1)
 155                 fmask &= SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE;
 156 #ifndef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
 157         /* 2 channels cannot be S32_BE */
 158         else if (c->min == 2 && c->max == 2)
 159                 fmask &= ~SNDRV_PCM_FMTBIT_S32_BE;
 160 #endif
 161         else
 162                 return 0;
 163
 164         fmt.bits[0] &= (u32)fmask;
 165         fmt.bits[1] &= (u32)(fmask >> 32);
 166         return snd_mask_refine(f, &fmt);
 167 }
 168
 169
 170
 171 static int hw_rule_playback_channels_by_format(struct snd_pcm_hw_params *params,
 172                                                struct snd_pcm_hw_rule *rule)
 173 {
 174         struct snd_interval *c = hw_param_interval(params,
 175                                                    SNDRV_PCM_HW_PARAM_CHANNELS);
 176         struct snd_mask *f = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 177         struct snd_interval ch;
 178         u64 fmask;
 179
 180         snd_interval_any(&ch);
 181         ch.integer = 1;
 182         fmask = f->bits[0] + ((u64)f->bits[1] << 32);
 183
 184         /* S32_BE is mono (and stereo) only */
 185         if (fmask == SNDRV_PCM_FMTBIT_S32_BE) {
 186                 ch.min = 1;
 187 #ifdef ECHOCARD_HAS_STEREO_BIG_ENDIAN32
 188                 ch.max = 2;
 189 #else
 190                 ch.max = 1;
 191 #endif
 192         /* U8 is stereo only */
 193         } else if (fmask == SNDRV_PCM_FMTBIT_U8)
 194                 ch.min = ch.max = 2;
 195         /* S16_LE and S24_3LE must be at least stereo */
 196         else if (!(fmask & ~(SNDRV_PCM_FMTBIT_S16_LE |
 197                                SNDRV_PCM_FMTBIT_S24_3LE)))
 198                 ch.min = 2;
 199         else
 200                 return 0;
 201
 202         return snd_interval_refine(c, &ch);
 203 }
 204
 205
 206
 207 /* Since the sample rate is a global setting, do allow the user to change the
 208 sample rate only if there is only one pcm device open. */
 209 static int hw_rule_sample_rate(struct snd_pcm_hw_params *params,
 210                                struct snd_pcm_hw_rule *rule)
 211 {
 212         struct snd_interval *rate = hw_param_interval(params,
 213                                                       SNDRV_PCM_HW_PARAM_RATE);
 214         struct echoaudio *chip = rule->private;
 215         struct snd_interval fixed;
 216
 217         if (!chip->can_set_rate) {
 218                 snd_interval_any(&fixed);
 219                 fixed.min = fixed.max = chip->sample_rate;
 220                 return snd_interval_refine(rate, &fixed);
 221         }
 222         return 0;
 223 }
 224
 225
 226 static int pcm_open(struct snd_pcm_substream *substream,
 227                     signed char max_channels)
 228 {
 229         struct echoaudio *chip;
 230         struct snd_pcm_runtime *runtime;
 231         struct audiopipe *pipe;
 232         int err, i;
 233
 234         if (max_channels <= 0)
 235                 return -EAGAIN;
 236
 237         chip = snd_pcm_substream_chip(substream);
 238         runtime = substream->runtime;
 239
 240         pipe = kzalloc(sizeof(struct audiopipe), GFP_KERNEL);
 241         if (!pipe)
 242                 return -ENOMEM;
 243         pipe->index = -1;               /* Not configured yet */
 244
 245         /* Set up hw capabilities and contraints */
 246         memcpy(&pipe->hw, &pcm_hardware_skel, sizeof(struct snd_pcm_hardware));
 247         DE_HWP(("max_channels=%d\n", max_channels));
 248         pipe->constr.list = channels_list;
 249         pipe->constr.mask = 0;
 250         for (i = 0; channels_list[i] <= max_channels; i++);
 251         pipe->constr.count = i;
 252         if (pipe->hw.channels_max > max_channels)
 253                 pipe->hw.channels_max = max_channels;
 254         if (chip->digital_mode == DIGITAL_MODE_ADAT) {
 255                 pipe->hw.rate_max = 48000;
 256                 pipe->hw.rates &= SNDRV_PCM_RATE_8000_48000;
 257         }
 258
 259         runtime->hw = pipe->hw;
 260         runtime->private_data = pipe;
 261         runtime->private_free = audiopipe_free;
 262         snd_pcm_set_sync(substream);
 263
 264         /* Only mono and any even number of channels are allowed */
 265         if ((err = snd_pcm_hw_constraint_list(runtime, 0,
 266                                               SNDRV_PCM_HW_PARAM_CHANNELS,
 267                                               &pipe->constr)) < 0)
 268                 return err;
 269
 270         /* All periods should have the same size */
 271         if ((err = snd_pcm_hw_constraint_integer(runtime,
 272                                                  SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 273                 return err;
 274
 275         /* The hw accesses memory in chunks 32 frames long and they should be
 276         32-bytes-aligned. It's not a requirement, but it seems that IRQs are
 277         generated with a resolution of 32 frames. Thus we need the following */
 278         if ((err = snd_pcm_hw_constraint_step(runtime, 0,
 279                                               SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
 280                                               32)) < 0)
 281                 return err;
 282         if ((err = snd_pcm_hw_constraint_step(runtime, 0,
 283                                               SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
 284                                               32)) < 0)
 285                 return err;
 286
 287         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 288                                        SNDRV_PCM_HW_PARAM_RATE,
 289                                         hw_rule_sample_rate, chip,
 290                                        SNDRV_PCM_HW_PARAM_RATE, -1)) < 0)
 291                 return err;
 292
 293         /* Finally allocate a page for the scatter-gather list */
 294         if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 295                                        snd_dma_pci_data(chip->pci),
 296                                        PAGE_SIZE, &pipe->sgpage)) < 0) {
 297                 DE_HWP(("s-g list allocation failed\n"));
 298                 return err;
 299         }
 300
 301         return 0;
 302 }
 303
 304
 305
 306 static int pcm_analog_in_open(struct snd_pcm_substream *substream)
 307 {
 308         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 309         int err;
 310
 311         DE_ACT(("pcm_analog_in_open\n"));
 312         if ((err = pcm_open(substream, num_analog_busses_in(chip) -
 313                             substream->number)) < 0)
 314                 return err;
 315         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 316                                        SNDRV_PCM_HW_PARAM_CHANNELS,
 317                                        hw_rule_capture_channels_by_format, NULL,
 318                                        SNDRV_PCM_HW_PARAM_FORMAT, -1)) < 0)
 319                 return err;
 320         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 321                                        SNDRV_PCM_HW_PARAM_FORMAT,
 322                                        hw_rule_capture_format_by_channels, NULL,
 323                                        SNDRV_PCM_HW_PARAM_CHANNELS, -1)) < 0)
 324                 return err;
 325         atomic_inc(&chip->opencount);
 326         if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
 327                 chip->can_set_rate=0;
 328         DE_HWP(("pcm_analog_in_open  cs=%d  oc=%d  r=%d\n",
 329                 chip->can_set_rate, atomic_read(&chip->opencount),
 330                 chip->sample_rate));
 331         return 0;
 332 }
 333
 334
 335
 336 static int pcm_analog_out_open(struct snd_pcm_substream *substream)
 337 {
 338         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 339         int max_channels, err;
 340
 341 #ifdef ECHOCARD_HAS_VMIXER
 342         max_channels = num_pipes_out(chip);
 343 #else
 344         max_channels = num_analog_busses_out(chip);
 345 #endif
 346         DE_ACT(("pcm_analog_out_open\n"));
 347         if ((err = pcm_open(substream, max_channels - substream->number)) < 0)
 348                 return err;
 349         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 350                                        SNDRV_PCM_HW_PARAM_CHANNELS,
 351                                        hw_rule_playback_channels_by_format,
 352                                        NULL,
 353                                        SNDRV_PCM_HW_PARAM_FORMAT, -1)) < 0)
 354                 return err;
 355         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 356                                        SNDRV_PCM_HW_PARAM_FORMAT,
 357                                        hw_rule_playback_format_by_channels,
 358                                        NULL,
 359                                        SNDRV_PCM_HW_PARAM_CHANNELS, -1)) < 0)
 360                 return err;
 361         atomic_inc(&chip->opencount);
 362         if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
 363                 chip->can_set_rate=0;
 364         DE_HWP(("pcm_analog_out_open  cs=%d  oc=%d  r=%d\n",
 365                 chip->can_set_rate, atomic_read(&chip->opencount),
 366                 chip->sample_rate));
 367         return 0;
 368 }
 369
 370
 371
 372 #ifdef ECHOCARD_HAS_DIGITAL_IO
 373
 374 static int pcm_digital_in_open(struct snd_pcm_substream *substream)
 375 {
 376         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 377         int err, max_channels;
 378
 379         DE_ACT(("pcm_digital_in_open\n"));
 380         max_channels = num_digital_busses_in(chip) - substream->number;
 381         down(&chip->mode_mutex);
 382         if (chip->digital_mode == DIGITAL_MODE_ADAT)
 383                 err = pcm_open(substream, max_channels);
 384         else    /* If the card has ADAT, subtract the 6 channels
 385                  * that S/PDIF doesn't have
 386                  */
 387                 err = pcm_open(substream, max_channels - ECHOCARD_HAS_ADAT);
 388
 389         if (err < 0)
 390                 goto din_exit;
 391
 392         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 393                                        SNDRV_PCM_HW_PARAM_CHANNELS,
 394                                        hw_rule_capture_channels_by_format, NULL,
 395                                        SNDRV_PCM_HW_PARAM_FORMAT, -1)) < 0)
 396                 goto din_exit;
 397         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 398                                        SNDRV_PCM_HW_PARAM_FORMAT,
 399                                        hw_rule_capture_format_by_channels, NULL,
 400                                        SNDRV_PCM_HW_PARAM_CHANNELS, -1)) < 0)
 401                 goto din_exit;
 402
 403         atomic_inc(&chip->opencount);
 404         if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
 405                 chip->can_set_rate=0;
 406
 407 din_exit:
 408         up(&chip->mode_mutex);
 409         return err;
 410 }
 411
 412
 413
 414 #ifndef ECHOCARD_HAS_VMIXER     /* See the note in snd_echo_new_pcm() */
 415
 416 static int pcm_digital_out_open(struct snd_pcm_substream *substream)
 417 {
 418         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 419         int err, max_channels;
 420
 421         DE_ACT(("pcm_digital_out_open\n"));
 422         max_channels = num_digital_busses_out(chip) - substream->number;
 423         down(&chip->mode_mutex);
 424         if (chip->digital_mode == DIGITAL_MODE_ADAT)
 425                 err = pcm_open(substream, max_channels);
 426         else    /* If the card has ADAT, subtract the 6 channels
 427                  * that S/PDIF doesn't have
 428                  */
 429                 err = pcm_open(substream, max_channels - ECHOCARD_HAS_ADAT);
 430
 431         if (err < 0)
 432                 goto dout_exit;
 433
 434         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 435                                        SNDRV_PCM_HW_PARAM_CHANNELS,
 436                                        hw_rule_playback_channels_by_format,
 437                                        NULL, SNDRV_PCM_HW_PARAM_FORMAT,
 438                                        -1)) < 0)
 439                 goto dout_exit;
 440         if ((err = snd_pcm_hw_rule_add(substream->runtime, 0,
 441                                        SNDRV_PCM_HW_PARAM_FORMAT,
 442                                        hw_rule_playback_format_by_channels,
 443                                        NULL, SNDRV_PCM_HW_PARAM_CHANNELS,
 444                                        -1)) < 0)
 445                 goto dout_exit;
 446         atomic_inc(&chip->opencount);
 447         if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
 448                 chip->can_set_rate=0;
 449 dout_exit:
 450         up(&chip->mode_mutex);
 451         return err;
 452 }
 453
 454 #endif /* !ECHOCARD_HAS_VMIXER */
 455
 456 #endif /* ECHOCARD_HAS_DIGITAL_IO */
 457
 458
 459
 460 static int pcm_close(struct snd_pcm_substream *substream)
 461 {
 462         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 463         int oc;
 464
 465         /* Nothing to do here. Audio is already off and pipe will be
 466          * freed by its callback
 467          */
 468         DE_ACT(("pcm_close\n"));
 469
 470         atomic_dec(&chip->opencount);
 471         oc = atomic_read(&chip->opencount);
 472         DE_ACT(("pcm_close  oc=%d  cs=%d  rs=%d\n", oc,
 473                 chip->can_set_rate, chip->rate_set));
 474         if (oc < 2)
 475                 chip->can_set_rate = 1;
 476         if (oc == 0)
 477                 chip->rate_set = 0;
 478         DE_ACT(("pcm_close2 oc=%d  cs=%d  rs=%d\n", oc,
 479                 chip->can_set_rate,chip->rate_set));
 480
 481         return 0;
 482 }
 483
 484
 485
 486 /* Channel allocation and scatter-gather list setup */
 487 static int init_engine(struct snd_pcm_substream *substream,
 488                        struct snd_pcm_hw_params *hw_params,
 489                        int pipe_index, int interleave)
 490 {
 491         struct echoaudio *chip;
 492         int err, per, rest, page, edge, offs;
 493         struct snd_sg_buf *sgbuf;
 494         struct audiopipe *pipe;
 495
 496         chip = snd_pcm_substream_chip(substream);
 497         pipe = (struct audiopipe *) substream->runtime->private_data;
 498
 499         /* Sets up che hardware. If it's already initialized, reset and
 500          * redo with the new parameters
 501          */
 502         spin_lock_irq(&chip->lock);
 503         if (pipe->index >= 0) {
 504                 DE_HWP(("hwp_ie free(%d)\n", pipe->index));
 505                 err = free_pipes(chip, pipe);
 506                 snd_assert(!err);
 507                 chip->substream[pipe->index] = NULL;
 508         }
 509
 510         err = allocate_pipes(chip, pipe, pipe_index, interleave);
 511         if (err < 0) {
 512                 spin_unlock_irq(&chip->lock);
 513                 DE_ACT((KERN_NOTICE "allocate_pipes(%d) err=%d\n",
 514                         pipe_index, err));
 515                 return err;
 516         }
 517         spin_unlock_irq(&chip->lock);
 518         DE_ACT((KERN_NOTICE "allocate_pipes()=%d\n", pipe_index));
 519
 520         DE_HWP(("pcm_hw_params (bufsize=%dB periods=%d persize=%dB)\n",
 521                 params_buffer_bytes(hw_params), params_periods(hw_params),
 522                 params_period_bytes(hw_params)));
 523         err = snd_pcm_lib_malloc_pages(substream,
 524                                        params_buffer_bytes(hw_params));
 525         if (err < 0) {
 526                 snd_printk(KERN_ERR "malloc_pages err=%d\n", err);
 527                 spin_lock_irq(&chip->lock);
 528                 free_pipes(chip, pipe);
 529                 spin_unlock_irq(&chip->lock);
 530                 pipe->index = -1;
 531                 return err;
 532         }
 533
 534         sgbuf = snd_pcm_substream_sgbuf(substream);
 535
 536         DE_HWP(("pcm_hw_params table size=%d pages=%d\n",
 537                 sgbuf->size, sgbuf->pages));
 538         sglist_init(chip, pipe);
 539         edge = PAGE_SIZE;
 540         for (offs = page = per = 0; offs < params_buffer_bytes(hw_params);
 541              per++) {
 542                 rest = params_period_bytes(hw_params);
 543                 if (offs + rest > params_buffer_bytes(hw_params))
 544                         rest = params_buffer_bytes(hw_params) - offs;
 545                 while (rest) {
 546                         if (rest <= edge - offs) {
 547                                 sglist_add_mapping(chip, pipe,
 548                                                    snd_sgbuf_get_addr(sgbuf, offs),
 549                                                    rest);
 550                                 sglist_add_irq(chip, pipe);
 551                                 offs += rest;
 552                                 rest = 0;
 553                         } else {
 554                                 sglist_add_mapping(chip, pipe,
 555                                                    snd_sgbuf_get_addr(sgbuf, offs),
 556                                                    edge - offs);
 557                                 rest -= edge - offs;
 558                                 offs = edge;
 559                         }
 560                         if (offs == edge) {
 561                                 edge += PAGE_SIZE;
 562                                 page++;
 563                         }
 564                 }
 565         }
 566
 567         /* Close the ring buffer */
 568         sglist_wrap(chip, pipe);
 569
 570         /* This stuff is used by the irq handler, so it must be
 571          * initialized before chip->substream
 572          */
 573         chip->last_period[pipe_index] = 0;
 574         pipe->last_counter = 0;
 575         pipe->position = 0;
 576         smp_wmb();
 577         chip->substream[pipe_index] = substream;
 578         chip->rate_set = 1;
 579         spin_lock_irq(&chip->lock);
 580         set_sample_rate(chip, hw_params->rate_num / hw_params->rate_den);
 581         spin_unlock_irq(&chip->lock);
 582         DE_HWP(("pcm_hw_params ok\n"));
 583         return 0;
 584 }
 585
 586
 587
 588 static int pcm_analog_in_hw_params(struct snd_pcm_substream *substream,
 589                                    struct snd_pcm_hw_params *hw_params)
 590 {
 591         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 592
 593         return init_engine(substream, hw_params, px_analog_in(chip) +
 594                         substream->number, params_channels(hw_params));
 595 }
 596
 597
 598
 599 static int pcm_analog_out_hw_params(struct snd_pcm_substream *substream,
 600                                     struct snd_pcm_hw_params *hw_params)
 601 {
 602         return init_engine(substream, hw_params, substream->number,
 603                            params_channels(hw_params));
 604 }
 605
 606
 607
 608 #ifdef ECHOCARD_HAS_DIGITAL_IO
 609
 610 static int pcm_digital_in_hw_params(struct snd_pcm_substream *substream,
 611                                     struct snd_pcm_hw_params *hw_params)
 612 {
 613         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 614
 615         return init_engine(substream, hw_params, px_digital_in(chip) +
 616                         substream->number, params_channels(hw_params));
 617 }
 618
 619
 620
 621 #ifndef ECHOCARD_HAS_VMIXER     /* See the note in snd_echo_new_pcm() */
 622 static int pcm_digital_out_hw_params(struct snd_pcm_substream *substream,
 623                                      struct snd_pcm_hw_params *hw_params)
 624 {
 625         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 626
 627         return init_engine(substream, hw_params, px_digital_out(chip) +
 628                         substream->number, params_channels(hw_params));
 629 }
 630 #endif /* !ECHOCARD_HAS_VMIXER */
 631
 632 #endif /* ECHOCARD_HAS_DIGITAL_IO */
 633
 634
 635
 636 static int pcm_hw_free(struct snd_pcm_substream *substream)
 637 {
 638         struct echoaudio *chip;
 639         struct audiopipe *pipe;
 640
 641         chip = snd_pcm_substream_chip(substream);
 642         pipe = (struct audiopipe *) substream->runtime->private_data;
 643
 644         spin_lock_irq(&chip->lock);
 645         if (pipe->index >= 0) {
 646                 DE_HWP(("pcm_hw_free(%d)\n", pipe->index));
 647                 free_pipes(chip, pipe);
 648                 chip->substream[pipe->index] = NULL;
 649                 pipe->index = -1;
 650         }
 651         spin_unlock_irq(&chip->lock);
 652
 653         DE_HWP(("pcm_hw_freed\n"));
 654         snd_pcm_lib_free_pages(substream);
 655         return 0;
 656 }
 657
 658
 659
 660 static int pcm_prepare(struct snd_pcm_substream *substream)
 661 {
 662         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 663         struct snd_pcm_runtime *runtime = substream->runtime;
 664         struct audioformat format;
 665         int pipe_index = ((struct audiopipe *)runtime->private_data)->index;
 666
 667         DE_HWP(("Prepare rate=%d format=%d channels=%d\n",
 668                 runtime->rate, runtime->format, runtime->channels));
 669         format.interleave = runtime->channels;
 670         format.data_are_bigendian = 0;
 671         format.mono_to_stereo = 0;
 672         switch (runtime->format) {
 673         case SNDRV_PCM_FORMAT_U8:
 674                 format.bits_per_sample = 8;
 675                 break;
 676         case SNDRV_PCM_FORMAT_S16_LE:
 677                 format.bits_per_sample = 16;
 678                 break;
 679         case SNDRV_PCM_FORMAT_S24_3LE:
 680                 format.bits_per_sample = 24;
 681                 break;
 682         case SNDRV_PCM_FORMAT_S32_BE:
 683                 format.data_are_bigendian = 1;
 684         case SNDRV_PCM_FORMAT_S32_LE:
 685                 format.bits_per_sample = 32;
 686                 break;
 687         default:
 688                 DE_HWP(("Prepare error: unsupported format %d\n",
 689                         runtime->format));
 690                 return -EINVAL;
 691         }
 692
 693         snd_assert(pipe_index < px_num(chip), return -EINVAL);
 694         snd_assert(is_pipe_allocated(chip, pipe_index), return -EINVAL);
 695         set_audio_format(chip, pipe_index, &format);
 696         return 0;
 697 }
 698
 699
 700
 701 static int pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 702 {
 703         struct echoaudio *chip = snd_pcm_substream_chip(substream);
 704         struct snd_pcm_runtime *runtime = substream->runtime;
 705         struct audiopipe *pipe = runtime->private_data;
 706         int i, err;
 707         u32 channelmask = 0;
 708         struct snd_pcm_substream *s;
 709
 710         snd_pcm_group_for_each_entry(s, substream) {
 711                 for (i = 0; i < DSP_MAXPIPES; i++) {
 712                         if (s == chip->substream[i]) {
 713                                 channelmask |= 1 << i;
 714                                 snd_pcm_trigger_done(s, substream);
 715                         }
 716                 }
 717         }
 718
 719         spin_lock(&chip->lock);
 720         switch (cmd) {
 721         case SNDRV_PCM_TRIGGER_START:
 722         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 723                 DE_ACT(("pcm_trigger start\n"));
 724                 for (i = 0; i < DSP_MAXPIPES; i++) {
 725                         if (channelmask & (1 << i)) {
 726                                 pipe = chip->substream[i]->runtime->private_data;
 727                                 switch (pipe->state) {
 728                                 case PIPE_STATE_STOPPED:
 729                                         chip->last_period[i] = 0;
 730                                         pipe->last_counter = 0;
 731                                         pipe->position = 0;
 732                                         *pipe->dma_counter = 0;
 733                                 case PIPE_STATE_PAUSED:
 734                                         pipe->state = PIPE_STATE_STARTED;
 735                                         break;
 736                                 case PIPE_STATE_STARTED:
 737                                         break;
 738                                 }
 739                         }
 740                 }
 741                 err = start_transport(chip, channelmask,
 742                                       chip->pipe_cyclic_mask);
 743                 break;
 744         case SNDRV_PCM_TRIGGER_STOP:
 745                 DE_ACT(("pcm_trigger stop\n"));
 746                 for (i = 0; i < DSP_MAXPIPES; i++) {
 747                         if (channelmask & (1 << i)) {
 748                                 pipe = chip->substream[i]->runtime->private_data;
 749                                 pipe->state = PIPE_STATE_STOPPED;
 750                         }
 751                 }
 752                 err = stop_transport(chip, channelmask);
 753                 break;
 754         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 755                 DE_ACT(("pcm_trigger pause\n"));
 756                 for (i = 0; i < DSP_MAXPIPES; i++) {
 757                         if (channelmask & (1 << i)) {
 758                                 pipe = chip->substream[i]->runtime->private_data;
 759                                 pipe->state = PIPE_STATE_PAUSED;
 760                         }
 761                 }
 762                 err = pause_transport(chip, channelmask);
 763                 break;
 764         default:
 765                 err = -EINVAL;
 766         }
 767         spin_unlock(&chip->lock);
 768         return err;
 769 }
 770
 771
 772
 773 static snd_pcm_uframes_t pcm_pointer(struct snd_pcm_substream *substream)
 774 {
 775         struct snd_pcm_runtime *runtime = substream->runtime;
 776         struct audiopipe *pipe = runtime->private_data;
 777         size_t cnt, bufsize, pos;
 778
 779         cnt = le32_to_cpu(*pipe->dma_counter);
 780         pipe->position += cnt - pipe->last_counter;
 781         pipe->last_counter = cnt;
 782         bufsize = substream->runtime->buffer_size;
 783         pos = bytes_to_frames(substream->runtime, pipe->position);
 784
 785         while (pos >= bufsize) {
 786                 pipe->position -= frames_to_bytes(substream->runtime, bufsize);
 787                 pos -= bufsize;
 788         }
 789         return pos;
 790 }
 791
 792
 793
 794 /* pcm *_ops structures */
 795 static struct snd_pcm_ops analog_playback_ops = {
 796         .open = pcm_analog_out_open,
 797         .close = pcm_close,
 798         .ioctl = snd_pcm_lib_ioctl,
 799         .hw_params = pcm_analog_out_hw_params,
 800         .hw_free = pcm_hw_free,
 801         .prepare = pcm_prepare,
 802         .trigger = pcm_trigger,
 803         .pointer = pcm_pointer,
 804         .page = snd_pcm_sgbuf_ops_page,
 805 };
 806 static struct snd_pcm_ops analog_capture_ops = {
 807         .open = pcm_analog_in_open,
 808         .close = pcm_close,
 809         .ioctl = snd_pcm_lib_ioctl,
 810         .hw_params = pcm_analog_in_hw_params,
 811         .hw_free = pcm_hw_free,
 812         .prepare = pcm_prepare,
 813         .trigger = pcm_trigger,
 814         .pointer = pcm_pointer,
 815         .page = snd_pcm_sgbuf_ops_page,
 816 };
 817 #ifdef ECHOCARD_HAS_DIGITAL_IO
 818 #ifndef ECHOCARD_HAS_VMIXER
 819 static struct snd_pcm_ops digital_playback_ops = {
 820         .open = pcm_digital_out_open,
 821         .close = pcm_close,
 822         .ioctl = snd_pcm_lib_ioctl,
 823         .hw_params = pcm_digital_out_hw_params,
 824         .hw_free = pcm_hw_free,
 825         .prepare = pcm_prepare,
 826         .trigger = pcm_trigger,
 827         .pointer = pcm_pointer,
 828         .page = snd_pcm_sgbuf_ops_page,
 829 };
 830 #endif /* !ECHOCARD_HAS_VMIXER */
 831 static struct snd_pcm_ops digital_capture_ops = {
 832         .open = pcm_digital_in_open,
 833         .close = pcm_close,
 834         .ioctl = snd_pcm_lib_ioctl,
 835         .hw_params = pcm_digital_in_hw_params,
 836         .hw_free = pcm_hw_free,
 837         .prepare = pcm_prepare,
 838         .trigger = pcm_trigger,
 839         .pointer = pcm_pointer,
 840         .page = snd_pcm_sgbuf_ops_page,
 841 };
 842 #endif /* ECHOCARD_HAS_DIGITAL_IO */
 843
 844
 845
 846 /* Preallocate memory only for the first substream because it's the most
 847  * used one
 848  */
 849 static int snd_echo_preallocate_pages(struct snd_pcm *pcm, struct device *dev)
 850 {
 851         struct snd_pcm_substream *ss;
 852         int stream, err;
 853
 854         for (stream = 0; stream < 2; stream++)
 855                 for (ss = pcm->streams[stream].substream; ss; ss = ss->next) {
 856                         err = snd_pcm_lib_preallocate_pages(ss, SNDRV_DMA_TYPE_DEV_SG,
 857                                                             dev,
 858                                                             ss->number ? 0 : 128<<10,
 859                                                             256<<10);
 860                         if (err < 0)
 861                                 return err;
 862                 }
 863         return 0;
 864 }
 865
 866
 867
 868 /*<--snd_echo_probe() */
 869 static int __devinit snd_echo_new_pcm(struct echoaudio *chip)
 870 {
 871         struct snd_pcm *pcm;
 872         int err;
 873
 874 #ifdef ECHOCARD_HAS_VMIXER
 875         /* This card has a Vmixer, that is there is no direct mapping from PCM
 876         streams to physical outputs. The user can mix the streams as he wishes
 877         via control interface and it's possible to send any stream to any
 878         output, thus it makes no sense to keep analog and digital outputs
 879         separated */
 880
 881         /* PCM#0 Virtual outputs and analog inputs */
 882         if ((err = snd_pcm_new(chip->card, "PCM", 0, num_pipes_out(chip),
 883                                 num_analog_busses_in(chip), &pcm)) < 0)
 884                 return err;
 885         pcm->private_data = chip;
 886         chip->analog_pcm = pcm;
 887         strcpy(pcm->name, chip->card->shortname);
 888         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &analog_playback_ops);
 889         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &analog_capture_ops);
 890         if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
 891                 return err;
 892         DE_INIT(("Analog PCM ok\n"));
 893
 894 #ifdef ECHOCARD_HAS_DIGITAL_IO
 895         /* PCM#1 Digital inputs, no outputs */
 896         if ((err = snd_pcm_new(chip->card, "Digital PCM", 1, 0,
 897                                num_digital_busses_in(chip), &pcm)) < 0)
 898                 return err;
 899         pcm->private_data = chip;
 900         chip->digital_pcm = pcm;
 901         strcpy(pcm->name, chip->card->shortname);
 902         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &digital_capture_ops);
 903         if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
 904                 return err;
 905         DE_INIT(("Digital PCM ok\n"));
 906 #endif /* ECHOCARD_HAS_DIGITAL_IO */
 907
 908 #else /* ECHOCARD_HAS_VMIXER */
 909
 910         /* The card can manage substreams formed by analog and digital channels
 911         at the same time, but I prefer to keep analog and digital channels
 912         separated, because that mixed thing is confusing and useless. So we
 913         register two PCM devices: */
 914
 915         /* PCM#0 Analog i/o */
 916         if ((err = snd_pcm_new(chip->card, "Analog PCM", 0,
 917                                num_analog_busses_out(chip),
 918                                num_analog_busses_in(chip), &pcm)) < 0)
 919                 return err;
 920         pcm->private_data = chip;
 921         chip->analog_pcm = pcm;
 922         strcpy(pcm->name, chip->card->shortname);
 923         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &analog_playback_ops);
 924         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &analog_capture_ops);
 925         if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
 926                 return err;
 927         DE_INIT(("Analog PCM ok\n"));
 928
 929 #ifdef ECHOCARD_HAS_DIGITAL_IO
 930         /* PCM#1 Digital i/o */
 931         if ((err = snd_pcm_new(chip->card, "Digital PCM", 1,
 932                                num_digital_busses_out(chip),
 933                                num_digital_busses_in(chip), &pcm)) < 0)
 934                 return err;
 935         pcm->private_data = chip;
 936         chip->digital_pcm = pcm;
 937         strcpy(pcm->name, chip->card->shortname);
 938         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &digital_playback_ops);
 939         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &digital_capture_ops);
 940         if ((err = snd_echo_preallocate_pages(pcm, snd_dma_pci_data(chip->pci))) < 0)
 941                 return err;
 942         DE_INIT(("Digital PCM ok\n"));
 943 #endif /* ECHOCARD_HAS_DIGITAL_IO */
 944
 945 #endif /* ECHOCARD_HAS_VMIXER */
 946
 947         return 0;
 948 }
 949
 950
 951
 952
 953 /******************************************************************************
 954         Control interface
 955 ******************************************************************************/
 956
 957 /******************* PCM output volume *******************/
 958 static int snd_echo_output_gain_info(struct snd_kcontrol *kcontrol,
 959                                      struct snd_ctl_elem_info *uinfo)
 960 {
 961         struct echoaudio *chip;
 962
 963         chip = snd_kcontrol_chip(kcontrol);
 964         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 965         uinfo->count = num_busses_out(chip);
 966         uinfo->value.integer.min = ECHOGAIN_MINOUT;
 967         uinfo->value.integer.max = ECHOGAIN_MAXOUT;
 968         return 0;
 969 }
 970
 971 static int snd_echo_output_gain_get(struct snd_kcontrol *kcontrol,
 972                                     struct snd_ctl_elem_value *ucontrol)
 973 {
 974         struct echoaudio *chip;
 975         int c;
 976
 977         chip = snd_kcontrol_chip(kcontrol);
 978         for (c = 0; c < num_busses_out(chip); c++)
 979                 ucontrol->value.integer.value[c] = chip->output_gain[c];
 980         return 0;
 981 }
 982
 983 static int snd_echo_output_gain_put(struct snd_kcontrol *kcontrol,
 984                                     struct snd_ctl_elem_value *ucontrol)
 985 {
 986         struct echoaudio *chip;
 987         int c, changed, gain;
 988
 989         changed = 0;
 990         chip = snd_kcontrol_chip(kcontrol);
 991         spin_lock_irq(&chip->lock);
 992         for (c = 0; c < num_busses_out(chip); c++) {
 993                 gain = ucontrol->value.integer.value[c];
 994                 /* Ignore out of range values */
 995                 if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
 996                         continue;
 997                 if (chip->output_gain[c] != gain) {
 998                         set_output_gain(chip, c, gain);
 999                         changed = 1;
1000                 }
1001         }
1002         if (changed)
1003                 update_output_line_level(chip);
1004         spin_unlock_irq(&chip->lock);
1005         return changed;
1006 }
1007
1008 #ifdef ECHOCARD_HAS_VMIXER
1009 /* On Vmixer cards this one controls the line-out volume */
1010 static struct snd_kcontrol_new snd_echo_line_output_gain __devinitdata = {
1011         .name = "Line Playback Volume",
1012         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1013         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1014         .info = snd_echo_output_gain_info,
1015         .get = snd_echo_output_gain_get,
1016         .put = snd_echo_output_gain_put,
1017         .tlv = {.p = db_scale_output_gain},
1018 };
1019 #else
1020 static struct snd_kcontrol_new snd_echo_pcm_output_gain __devinitdata = {
1021         .name = "PCM Playback Volume",
1022         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1023         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1024         .info = snd_echo_output_gain_info,
1025         .get = snd_echo_output_gain_get,
1026         .put = snd_echo_output_gain_put,
1027         .tlv = {.p = db_scale_output_gain},
1028 };
1029 #endif
1030
1031
1032
1033 #ifdef ECHOCARD_HAS_INPUT_GAIN
1034
1035 /******************* Analog input volume *******************/
1036 static int snd_echo_input_gain_info(struct snd_kcontrol *kcontrol,
1037                                     struct snd_ctl_elem_info *uinfo)
1038 {
1039         struct echoaudio *chip;
1040
1041         chip = snd_kcontrol_chip(kcontrol);
1042         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1043         uinfo->count = num_analog_busses_in(chip);
1044         uinfo->value.integer.min = ECHOGAIN_MININP;
1045         uinfo->value.integer.max = ECHOGAIN_MAXINP;
1046         return 0;
1047 }
1048
1049 static int snd_echo_input_gain_get(struct snd_kcontrol *kcontrol,
1050                                    struct snd_ctl_elem_value *ucontrol)
1051 {
1052         struct echoaudio *chip;
1053         int c;
1054
1055         chip = snd_kcontrol_chip(kcontrol);
1056         for (c = 0; c < num_analog_busses_in(chip); c++)
1057                 ucontrol->value.integer.value[c] = chip->input_gain[c];
1058         return 0;
1059 }
1060
1061 static int snd_echo_input_gain_put(struct snd_kcontrol *kcontrol,
1062                                    struct snd_ctl_elem_value *ucontrol)
1063 {
1064         struct echoaudio *chip;
1065         int c, gain, changed;
1066
1067         changed = 0;
1068         chip = snd_kcontrol_chip(kcontrol);
1069         spin_lock_irq(&chip->lock);
1070         for (c = 0; c < num_analog_busses_in(chip); c++) {
1071                 gain = ucontrol->value.integer.value[c];
1072                 /* Ignore out of range values */
1073                 if (gain < ECHOGAIN_MININP || gain > ECHOGAIN_MAXINP)
1074                         continue;
1075                 if (chip->input_gain[c] != gain) {
1076                         set_input_gain(chip, c, gain);
1077                         changed = 1;
1078                 }
1079         }
1080         if (changed)
1081                 update_input_line_level(chip);
1082         spin_unlock_irq(&chip->lock);
1083         return changed;
1084 }
1085
1086 static const DECLARE_TLV_DB_SCALE(db_scale_input_gain, -2500, 50, 0);
1087
1088 static struct snd_kcontrol_new snd_echo_line_input_gain __devinitdata = {
1089         .name = "Line Capture Volume",
1090         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1091         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1092         .info = snd_echo_input_gain_info,
1093         .get = snd_echo_input_gain_get,
1094         .put = snd_echo_input_gain_put,
1095         .tlv = {.p = db_scale_input_gain},
1096 };
1097
1098 #endif /* ECHOCARD_HAS_INPUT_GAIN */
1099
1100
1101
1102 #ifdef ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL
1103
1104 /************ Analog output nominal level (+4dBu / -10dBV) ***************/
1105 static int snd_echo_output_nominal_info (struct snd_kcontrol *kcontrol,
1106                                          struct snd_ctl_elem_info *uinfo)
1107 {
1108         struct echoaudio *chip;
1109
1110         chip = snd_kcontrol_chip(kcontrol);
1111         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1112         uinfo->count = num_analog_busses_out(chip);
1113         uinfo->value.integer.min = 0;
1114         uinfo->value.integer.max = 1;
1115         return 0;
1116 }
1117
1118 static int snd_echo_output_nominal_get(struct snd_kcontrol *kcontrol,
1119                                        struct snd_ctl_elem_value *ucontrol)
1120 {
1121         struct echoaudio *chip;
1122         int c;
1123
1124         chip = snd_kcontrol_chip(kcontrol);
1125         for (c = 0; c < num_analog_busses_out(chip); c++)
1126                 ucontrol->value.integer.value[c] = chip->nominal_level[c];
1127         return 0;
1128 }
1129
1130 static int snd_echo_output_nominal_put(struct snd_kcontrol *kcontrol,
1131                                        struct snd_ctl_elem_value *ucontrol)
1132 {
1133         struct echoaudio *chip;
1134         int c, changed;
1135
1136         changed = 0;
1137         chip = snd_kcontrol_chip(kcontrol);
1138         spin_lock_irq(&chip->lock);
1139         for (c = 0; c < num_analog_busses_out(chip); c++) {
1140                 if (chip->nominal_level[c] != ucontrol->value.integer.value[c]) {
1141                         set_nominal_level(chip, c,
1142                                           ucontrol->value.integer.value[c]);
1143                         changed = 1;
1144                 }
1145         }
1146         if (changed)
1147                 update_output_line_level(chip);
1148         spin_unlock_irq(&chip->lock);
1149         return changed;
1150 }
1151
1152 static struct snd_kcontrol_new snd_echo_output_nominal_level __devinitdata = {
1153         .name = "Line Playback Switch (-10dBV)",
1154         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1155         .info = snd_echo_output_nominal_info,
1156         .get = snd_echo_output_nominal_get,
1157         .put = snd_echo_output_nominal_put,
1158 };
1159
1160 #endif /* ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL */
1161
1162
1163
1164 #ifdef ECHOCARD_HAS_INPUT_NOMINAL_LEVEL
1165
1166 /*************** Analog input nominal level (+4dBu / -10dBV) ***************/
1167 static int snd_echo_input_nominal_info(struct snd_kcontrol *kcontrol,
1168                                        struct snd_ctl_elem_info *uinfo)
1169 {
1170         struct echoaudio *chip;
1171
1172         chip = snd_kcontrol_chip(kcontrol);
1173         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1174         uinfo->count = num_analog_busses_in(chip);
1175         uinfo->value.integer.min = 0;
1176         uinfo->value.integer.max = 1;
1177         return 0;
1178 }
1179
1180 static int snd_echo_input_nominal_get(struct snd_kcontrol *kcontrol,
1181                                       struct snd_ctl_elem_value *ucontrol)
1182 {
1183         struct echoaudio *chip;
1184         int c;
1185
1186         chip = snd_kcontrol_chip(kcontrol);
1187         for (c = 0; c < num_analog_busses_in(chip); c++)
1188                 ucontrol->value.integer.value[c] =
1189                         chip->nominal_level[bx_analog_in(chip) + c];
1190         return 0;
1191 }
1192
1193 static int snd_echo_input_nominal_put(struct snd_kcontrol *kcontrol,
1194                                       struct snd_ctl_elem_value *ucontrol)
1195 {
1196         struct echoaudio *chip;
1197         int c, changed;
1198
1199         changed = 0;
1200         chip = snd_kcontrol_chip(kcontrol);
1201         spin_lock_irq(&chip->lock);
1202         for (c = 0; c < num_analog_busses_in(chip); c++) {
1203                 if (chip->nominal_level[bx_analog_in(chip) + c] !=
1204                     ucontrol->value.integer.value[c]) {
1205                         set_nominal_level(chip, bx_analog_in(chip) + c,
1206                                           ucontrol->value.integer.value[c]);
1207                         changed = 1;
1208                 }
1209         }
1210         if (changed)
1211                 update_output_line_level(chip); /* "Output" is not a mistake
1212                                                  * here.
1213                                                  */
1214         spin_unlock_irq(&chip->lock);
1215         return changed;
1216 }
1217
1218 static struct snd_kcontrol_new snd_echo_intput_nominal_level __devinitdata = {
1219         .name = "Line Capture Switch (-10dBV)",
1220         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1221         .info = snd_echo_input_nominal_info,
1222         .get = snd_echo_input_nominal_get,
1223         .put = snd_echo_input_nominal_put,
1224 };
1225
1226 #endif /* ECHOCARD_HAS_INPUT_NOMINAL_LEVEL */
1227
1228
1229
1230 #ifdef ECHOCARD_HAS_MONITOR
1231
1232 /******************* Monitor mixer *******************/
1233 static int snd_echo_mixer_info(struct snd_kcontrol *kcontrol,
1234                                struct snd_ctl_elem_info *uinfo)
1235 {
1236         struct echoaudio *chip;
1237
1238         chip = snd_kcontrol_chip(kcontrol);
1239         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1240         uinfo->count = 1;
1241         uinfo->value.integer.min = ECHOGAIN_MINOUT;
1242         uinfo->value.integer.max = ECHOGAIN_MAXOUT;
1243         uinfo->dimen.d[0] = num_busses_out(chip);
1244         uinfo->dimen.d[1] = num_busses_in(chip);
1245         return 0;
1246 }
1247
1248 static int snd_echo_mixer_get(struct snd_kcontrol *kcontrol,
1249                               struct snd_ctl_elem_value *ucontrol)
1250 {
1251         struct echoaudio *chip;
1252
1253         chip = snd_kcontrol_chip(kcontrol);
1254         ucontrol->value.integer.value[0] =
1255                 chip->monitor_gain[ucontrol->id.index / num_busses_in(chip)]
1256                         [ucontrol->id.index % num_busses_in(chip)];
1257         return 0;
1258 }
1259
1260 static int snd_echo_mixer_put(struct snd_kcontrol *kcontrol,
1261                               struct snd_ctl_elem_value *ucontrol)
1262 {
1263         struct echoaudio *chip;
1264         int changed,  gain;
1265         short out, in;
1266
1267         changed = 0;
1268         chip = snd_kcontrol_chip(kcontrol);
1269         out = ucontrol->id.index / num_busses_in(chip);
1270         in = ucontrol->id.index % num_busses_in(chip);
1271         gain = ucontrol->value.integer.value[0];
1272         if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
1273                 return -EINVAL;
1274         if (chip->monitor_gain[out][in] != gain) {
1275                 spin_lock_irq(&chip->lock);
1276                 set_monitor_gain(chip, out, in, gain);
1277                 update_output_line_level(chip);
1278                 spin_unlock_irq(&chip->lock);
1279                 changed = 1;
1280         }
1281         return changed;
1282 }
1283
1284 static struct snd_kcontrol_new snd_echo_monitor_mixer __devinitdata = {
1285         .name = "Monitor Mixer Volume",
1286         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1287         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1288         .info = snd_echo_mixer_info,
1289         .get = snd_echo_mixer_get,
1290         .put = snd_echo_mixer_put,
1291         .tlv = {.p = db_scale_output_gain},
1292 };
1293
1294 #endif /* ECHOCARD_HAS_MONITOR */
1295
1296
1297
1298 #ifdef ECHOCARD_HAS_VMIXER
1299
1300 /******************* Vmixer *******************/
1301 static int snd_echo_vmixer_info(struct snd_kcontrol *kcontrol,
1302                                 struct snd_ctl_elem_info *uinfo)
1303 {
1304         struct echoaudio *chip;
1305
1306         chip = snd_kcontrol_chip(kcontrol);
1307         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1308         uinfo->count = 1;
1309         uinfo->value.integer.min = ECHOGAIN_MINOUT;
1310         uinfo->value.integer.max = ECHOGAIN_MAXOUT;
1311         uinfo->dimen.d[0] = num_busses_out(chip);
1312         uinfo->dimen.d[1] = num_pipes_out(chip);
1313         return 0;
1314 }
1315
1316 static int snd_echo_vmixer_get(struct snd_kcontrol *kcontrol,
1317                                struct snd_ctl_elem_value *ucontrol)
1318 {
1319         struct echoaudio *chip;
1320
1321         chip = snd_kcontrol_chip(kcontrol);
1322         ucontrol->value.integer.value[0] =
1323                 chip->vmixer_gain[ucontrol->id.index / num_pipes_out(chip)]
1324                         [ucontrol->id.index % num_pipes_out(chip)];
1325         return 0;
1326 }
1327
1328 static int snd_echo_vmixer_put(struct snd_kcontrol *kcontrol,
1329                                struct snd_ctl_elem_value *ucontrol)
1330 {
1331         struct echoaudio *chip;
1332         int gain, changed;
1333         short vch, out;
1334
1335         changed = 0;
1336         chip = snd_kcontrol_chip(kcontrol);
1337         out = ucontrol->id.index / num_pipes_out(chip);
1338         vch = ucontrol->id.index % num_pipes_out(chip);
1339         gain = ucontrol->value.integer.value[0];
1340         if (gain < ECHOGAIN_MINOUT || gain > ECHOGAIN_MAXOUT)
1341                 return -EINVAL;
1342         if (chip->vmixer_gain[out][vch] != ucontrol->value.integer.value[0]) {
1343                 spin_lock_irq(&chip->lock);
1344                 set_vmixer_gain(chip, out, vch, ucontrol->value.integer.value[0]);
1345                 update_vmixer_level(chip);
1346                 spin_unlock_irq(&chip->lock);
1347                 changed = 1;
1348         }
1349         return changed;
1350 }
1351
1352 static struct snd_kcontrol_new snd_echo_vmixer __devinitdata = {
1353         .name = "VMixer Volume",
1354         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1355         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1356         .info = snd_echo_vmixer_info,
1357         .get = snd_echo_vmixer_get,
1358         .put = snd_echo_vmixer_put,
1359         .tlv = {.p = db_scale_output_gain},
1360 };
1361
1362 #endif /* ECHOCARD_HAS_VMIXER */
1363
1364
1365
1366 #ifdef ECHOCARD_HAS_DIGITAL_MODE_SWITCH
1367
1368 /******************* Digital mode switch *******************/
1369 static int snd_echo_digital_mode_info(struct snd_kcontrol *kcontrol,
1370                                       struct snd_ctl_elem_info *uinfo)
1371 {
1372         static char *names[4] = {
1373                 "S/PDIF Coaxial", "S/PDIF Optical", "ADAT Optical",
1374                 "S/PDIF Cdrom"
1375         };
1376         struct echoaudio *chip;
1377
1378         chip = snd_kcontrol_chip(kcontrol);
1379         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1380         uinfo->value.enumerated.items = chip->num_digital_modes;
1381         uinfo->count = 1;
1382         if (uinfo->value.enumerated.item >= chip->num_digital_modes)
1383                 uinfo->value.enumerated.item = chip->num_digital_modes - 1;
1384         strcpy(uinfo->value.enumerated.name, names[
1385                         chip->digital_mode_list[uinfo->value.enumerated.item]]);
1386         return 0;
1387 }
1388
1389 static int snd_echo_digital_mode_get(struct snd_kcontrol *kcontrol,
1390                                      struct snd_ctl_elem_value *ucontrol)
1391 {
1392         struct echoaudio *chip;
1393         int i, mode;
1394
1395         chip = snd_kcontrol_chip(kcontrol);
1396         mode = chip->digital_mode;
1397         for (i = chip->num_digital_modes - 1; i >= 0; i--)
1398                 if (mode == chip->digital_mode_list[i]) {
1399                         ucontrol->value.enumerated.item[0] = i;
1400                         break;
1401                 }
1402         return 0;
1403 }
1404
1405 static int snd_echo_digital_mode_put(struct snd_kcontrol *kcontrol,
1406                                      struct snd_ctl_elem_value *ucontrol)
1407 {
1408         struct echoaudio *chip;
1409         int changed;
1410         unsigned short emode, dmode;
1411
1412         changed = 0;
1413         chip = snd_kcontrol_chip(kcontrol);
1414
1415         emode = ucontrol->value.enumerated.item[0];
1416         if (emode >= chip->num_digital_modes)
1417                 return -EINVAL;
1418         dmode = chip->digital_mode_list[emode];
1419
1420         if (dmode != chip->digital_mode) {
1421                 /* mode_mutex is required to make this operation atomic wrt
1422                 pcm_digital_*_open() and set_input_clock() functions. */
1423                 down(&chip->mode_mutex);
1424
1425                 /* Do not allow the user to change the digital mode when a pcm
1426                 device is open because it also changes the number of channels
1427                 and the allowed sample rates */
1428                 if (atomic_read(&chip->opencount)) {
1429                         changed = -EAGAIN;
1430                 } else {
1431                         changed = set_digital_mode(chip, dmode);
1432                         /* If we had to change the clock source, report it */
1433                         if (changed > 0 && chip->clock_src_ctl) {
1434                                 snd_ctl_notify(chip->card,
1435                                                SNDRV_CTL_EVENT_MASK_VALUE,
1436                                                &chip->clock_src_ctl->id);
1437                                 DE_ACT(("SDM() =%d\n", changed));
1438                         }
1439                         if (changed >= 0)
1440                                 changed = 1;    /* No errors */
1441                 }
1442                 up(&chip->mode_mutex);
1443         }
1444         return changed;
1445 }
1446
1447 static struct snd_kcontrol_new snd_echo_digital_mode_switch __devinitdata = {
1448         .name = "Digital mode Switch",
1449         .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1450         .info = snd_echo_digital_mode_info,
1451         .get = snd_echo_digital_mode_get,
1452         .put = snd_echo_digital_mode_put,
1453 };
1454
1455 #endif /* ECHOCARD_HAS_DIGITAL_MODE_SWITCH */
1456
1457
1458
1459 #ifdef ECHOCARD_HAS_DIGITAL_IO
1460
1461 /******************* S/PDIF mode switch *******************/
1462 static int snd_echo_spdif_mode_info(struct snd_kcontrol *kcontrol,
1463                                     struct snd_ctl_elem_info *uinfo)
1464 {
1465         static char *names[2] = {"Consumer", "Professional"};
1466
1467         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1468         uinfo->value.enumerated.items = 2;
1469         uinfo->count = 1;
1470         if (uinfo->value.enumerated.item)
1471                 uinfo->value.enumerated.item = 1;
1472         strcpy(uinfo->value.enumerated.name,
1473                names[uinfo->value.enumerated.item]);
1474         return 0;
1475 }
1476
1477 static int snd_echo_spdif_mode_get(struct snd_kcontrol *kcontrol,
1478                                    struct snd_ctl_elem_value *ucontrol)
1479 {
1480         struct echoaudio *chip;
1481
1482         chip = snd_kcontrol_chip(kcontrol);
1483         ucontrol->value.enumerated.item[0] = !!chip->professional_spdif;
1484         return 0;
1485 }
1486
1487 static int snd_echo_spdif_mode_put(struct snd_kcontrol *kcontrol,
1488                                    struct snd_ctl_elem_value *ucontrol)
1489 {
1490         struct echoaudio *chip;
1491         int mode;
1492
1493         chip = snd_kcontrol_chip(kcontrol);
1494         mode = !!ucontrol->value.enumerated.item[0];
1495         if (mode != chip->professional_spdif) {
1496                 spin_lock_irq(&chip->lock);
1497                 set_professional_spdif(chip, mode);
1498                 spin_unlock_irq(&chip->lock);
1499                 return 1;
1500         }
1501         return 0;
1502 }
1503
1504 static struct snd_kcontrol_new snd_echo_spdif_mode_switch __devinitdata = {
1505         .name = "S/PDIF mode Switch",
1506         .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1507         .info = snd_echo_spdif_mode_info,
1508         .get = snd_echo_spdif_mode_get,
1509         .put = snd_echo_spdif_mode_put,
1510 };
1511
1512 #endif /* ECHOCARD_HAS_DIGITAL_IO */
1513
1514
1515
1516 #ifdef ECHOCARD_HAS_EXTERNAL_CLOCK
1517
1518 /******************* Select input clock source *******************/
1519 static int snd_echo_clock_source_info(struct snd_kcontrol *kcontrol,
1520                                       struct snd_ctl_elem_info *uinfo)
1521 {
1522         static char *names[8] = {
1523                 "Internal", "Word", "Super", "S/PDIF", "ADAT", "ESync",
1524                 "ESync96", "MTC"
1525         };
1526         struct echoaudio *chip;
1527
1528         chip = snd_kcontrol_chip(kcontrol);
1529         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1530         uinfo->value.enumerated.items = chip->num_clock_sources;
1531         uinfo->count = 1;
1532         if (uinfo->value.enumerated.item >= chip->num_clock_sources)
1533                 uinfo->value.enumerated.item = chip->num_clock_sources - 1;
1534         strcpy(uinfo->value.enumerated.name, names[
1535                         chip->clock_source_list[uinfo->value.enumerated.item]]);
1536         return 0;
1537 }
1538
1539 static int snd_echo_clock_source_get(struct snd_kcontrol *kcontrol,
1540                                      struct snd_ctl_elem_value *ucontrol)
1541 {
1542         struct echoaudio *chip;
1543         int i, clock;
1544
1545         chip = snd_kcontrol_chip(kcontrol);
1546         clock = chip->input_clock;
1547
1548         for (i = 0; i < chip->num_clock_sources; i++)
1549                 if (clock == chip->clock_source_list[i])
1550                         ucontrol->value.enumerated.item[0] = i;
1551
1552         return 0;
1553 }
1554
1555 static int snd_echo_clock_source_put(struct snd_kcontrol *kcontrol,
1556                                      struct snd_ctl_elem_value *ucontrol)
1557 {
1558         struct echoaudio *chip;
1559         int changed;
1560         unsigned int eclock, dclock;
1561
1562         changed = 0;
1563         chip = snd_kcontrol_chip(kcontrol);
1564         eclock = ucontrol->value.enumerated.item[0];
1565         if (eclock >= chip->input_clock_types)
1566                 return -EINVAL;
1567         dclock = chip->clock_source_list[eclock];
1568         if (chip->input_clock != dclock) {
1569                 down(&chip->mode_mutex);
1570                 spin_lock_irq(&chip->lock);
1571                 if ((changed = set_input_clock(chip, dclock)) == 0)
1572                         changed = 1;    /* no errors */
1573                 spin_unlock_irq(&chip->lock);
1574                 up(&chip->mode_mutex);
1575         }
1576
1577         if (changed < 0)
1578                 DE_ACT(("seticlk val%d err 0x%x\n", dclock, changed));
1579
1580         return changed;
1581 }
1582
1583 static struct snd_kcontrol_new snd_echo_clock_source_switch __devinitdata = {
1584         .name = "Sample Clock Source",
1585         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1586         .info = snd_echo_clock_source_info,
1587         .get = snd_echo_clock_source_get,
1588         .put = snd_echo_clock_source_put,
1589 };
1590
1591 #endif /* ECHOCARD_HAS_EXTERNAL_CLOCK */
1592
1593
1594
1595 #ifdef ECHOCARD_HAS_PHANTOM_POWER
1596
1597 /******************* Phantom power switch *******************/
1598 #define snd_echo_phantom_power_info     snd_ctl_boolean_mono_info
1599
1600 static int snd_echo_phantom_power_get(struct snd_kcontrol *kcontrol,
1601                                       struct snd_ctl_elem_value *ucontrol)
1602 {
1603         struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
1604
1605         ucontrol->value.integer.value[0] = chip->phantom_power;
1606         return 0;
1607 }
1608
1609 static int snd_echo_phantom_power_put(struct snd_kcontrol *kcontrol,
1610                                       struct snd_ctl_elem_value *ucontrol)
1611 {
1612         struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
1613         int power, changed = 0;
1614
1615         power = !!ucontrol->value.integer.value[0];
1616         if (chip->phantom_power != power) {
1617                 spin_lock_irq(&chip->lock);
1618                 changed = set_phantom_power(chip, power);
1619                 spin_unlock_irq(&chip->lock);
1620                 if (changed == 0)
1621                         changed = 1;    /* no errors */
1622         }
1623         return changed;
1624 }
1625
1626 static struct snd_kcontrol_new snd_echo_phantom_power_switch __devinitdata = {
1627         .name = "Phantom power Switch",
1628         .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1629         .info = snd_echo_phantom_power_info,
1630         .get = snd_echo_phantom_power_get,
1631         .put = snd_echo_phantom_power_put,
1632 };
1633
1634 #endif /* ECHOCARD_HAS_PHANTOM_POWER */
1635
1636
1637
1638 #ifdef ECHOCARD_HAS_DIGITAL_IN_AUTOMUTE
1639
1640 /******************* Digital input automute switch *******************/
1641 #define snd_echo_automute_info          snd_ctl_boolean_mono_info
1642
1643 static int snd_echo_automute_get(struct snd_kcontrol *kcontrol,
1644                                  struct snd_ctl_elem_value *ucontrol)
1645 {
1646         struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
1647
1648         ucontrol->value.integer.value[0] = chip->digital_in_automute;
1649         return 0;
1650 }
1651
1652 static int snd_echo_automute_put(struct snd_kcontrol *kcontrol,
1653                                  struct snd_ctl_elem_value *ucontrol)
1654 {
1655         struct echoaudio *chip = snd_kcontrol_chip(kcontrol);
1656         int automute, changed = 0;
1657
1658         automute = !!ucontrol->value.integer.value[0];
1659         if (chip->digital_in_automute != automute) {
1660                 spin_lock_irq(&chip->lock);
1661                 changed = set_input_auto_mute(chip, automute);
1662                 spin_unlock_irq(&chip->lock);
1663                 if (changed == 0)
1664                         changed = 1;    /* no errors */
1665         }
1666         return changed;
1667 }
1668
1669 static struct snd_kcontrol_new snd_echo_automute_switch __devinitdata = {
1670         .name = "Digital Capture Switch (automute)",
1671         .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1672         .info = snd_echo_automute_info,
1673         .get = snd_echo_automute_get,
1674         .put = snd_echo_automute_put,
1675 };
1676
1677 #endif /* ECHOCARD_HAS_DIGITAL_IN_AUTOMUTE */
1678
1679
1680
1681 /******************* VU-meters switch *******************/
1682 #define snd_echo_vumeters_switch_info           snd_ctl_boolean_mono_info
1683
1684 static int snd_echo_vumeters_switch_put(struct snd_kcontrol *kcontrol,
1685                                         struct snd_ctl_elem_value *ucontrol)
1686 {
1687         struct echoaudio *chip;
1688
1689         chip = snd_kcontrol_chip(kcontrol);
1690         spin_lock_irq(&chip->lock);
1691         set_meters_on(chip, ucontrol->value.integer.value[0]);
1692         spin_unlock_irq(&chip->lock);
1693         return 1;
1694 }
1695
1696 static struct snd_kcontrol_new snd_echo_vumeters_switch __devinitdata = {
1697         .name = "VU-meters Switch",
1698         .iface = SNDRV_CTL_ELEM_IFACE_CARD,
1699         .access = SNDRV_CTL_ELEM_ACCESS_WRITE,
1700         .info = snd_echo_vumeters_switch_info,
1701         .put = snd_echo_vumeters_switch_put,
1702 };
1703
1704
1705
1706 /***** Read VU-meters (input, output, analog and digital together) *****/
1707 static int snd_echo_vumeters_info(struct snd_kcontrol *kcontrol,
1708                                   struct snd_ctl_elem_info *uinfo)
1709 {
1710         struct echoaudio *chip;
1711
1712         chip = snd_kcontrol_chip(kcontrol);
1713         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1714         uinfo->count = 96;
1715         uinfo->value.integer.min = ECHOGAIN_MINOUT;
1716         uinfo->value.integer.max = 0;
1717 #ifdef ECHOCARD_HAS_VMIXER
1718         uinfo->dimen.d[0] = 3;  /* Out, In, Virt */
1719 #else
1720         uinfo->dimen.d[0] = 2;  /* Out, In */
1721 #endif
1722         uinfo->dimen.d[1] = 16; /* 16 channels */
1723         uinfo->dimen.d[2] = 2;  /* 0=level, 1=peak */
1724         return 0;
1725 }
1726
1727 static int snd_echo_vumeters_get(struct snd_kcontrol *kcontrol,
1728                                  struct snd_ctl_elem_value *ucontrol)
1729 {
1730         struct echoaudio *chip;
1731
1732         chip = snd_kcontrol_chip(kcontrol);
1733         get_audio_meters(chip, ucontrol->value.integer.value);
1734         return 0;
1735 }
1736
1737 static struct snd_kcontrol_new snd_echo_vumeters __devinitdata = {
1738         .name = "VU-meters",
1739         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1740         .access = SNDRV_CTL_ELEM_ACCESS_READ |
1741                   SNDRV_CTL_ELEM_ACCESS_VOLATILE |
1742                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,
1743         .info = snd_echo_vumeters_info,
1744         .get = snd_echo_vumeters_get,
1745         .tlv = {.p = db_scale_output_gain},
1746 };
1747
1748
1749
1750 /*** Channels info - it exports informations about the number of channels ***/
1751 static int snd_echo_channels_info_info(struct snd_kcontrol *kcontrol,
1752                                        struct snd_ctl_elem_info *uinfo)
1753 {
1754         struct echoaudio *chip;
1755
1756         chip = snd_kcontrol_chip(kcontrol);
1757         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1758         uinfo->count = 6;
1759         uinfo->value.integer.min = 0;
1760         uinfo->value.integer.max = 1 << ECHO_CLOCK_NUMBER;
1761         return 0;
1762 }
1763
1764 static int snd_echo_channels_info_get(struct snd_kcontrol *kcontrol,
1765                                       struct snd_ctl_elem_value *ucontrol)
1766 {
1767         struct echoaudio *chip;
1768         int detected, clocks, bit, src;
1769
1770         chip = snd_kcontrol_chip(kcontrol);
1771         ucontrol->value.integer.value[0] = num_busses_in(chip);
1772         ucontrol->value.integer.value[1] = num_analog_busses_in(chip);
1773         ucontrol->value.integer.value[2] = num_busses_out(chip);
1774         ucontrol->value.integer.value[3] = num_analog_busses_out(chip);
1775         ucontrol->value.integer.value[4] = num_pipes_out(chip);
1776
1777         /* Compute the bitmask of the currently valid input clocks */
1778         detected = detect_input_clocks(chip);
1779         clocks = 0;
1780         src = chip->num_clock_sources - 1;
1781         for (bit = ECHO_CLOCK_NUMBER - 1; bit >= 0; bit--)
1782                 if (detected & (1 << bit))
1783                         for (; src >= 0; src--)
1784                                 if (bit == chip->clock_source_list[src]) {
1785                                         clocks |= 1 << src;
1786                                         break;
1787                                 }
1788         ucontrol->value.integer.value[5] = clocks;
1789
1790         return 0;
1791 }
1792
1793 static struct snd_kcontrol_new snd_echo_channels_info __devinitdata = {
1794         .name = "Channels info",
1795         .iface = SNDRV_CTL_ELEM_IFACE_HWDEP,
1796         .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
1797         .info = snd_echo_channels_info_info,
1798         .get = snd_echo_channels_info_get,
1799 };
1800
1801
1802
1803
1804 /******************************************************************************
1805         IRQ Handler
1806 ******************************************************************************/
1807
1808 static irqreturn_t snd_echo_interrupt(int irq, void *dev_id)
1809 {
1810         struct echoaudio *chip = dev_id;
1811         struct snd_pcm_substream *substream;
1812         int period, ss, st;
1813
1814         spin_lock(&chip->lock);
1815         st = service_irq(chip);
1816         if (st < 0) {
1817                 spin_unlock(&chip->lock);
1818                 return IRQ_NONE;
1819         }
1820         /* The hardware doesn't tell us which substream caused the irq,
1821         thus we have to check all running substreams. */
1822         for (ss = 0; ss < DSP_MAXPIPES; ss++) {
1823                 if ((substream = chip->substream[ss])) {
1824                         period = pcm_pointer(substream) /
1825                                 substream->runtime->period_size;
1826                         if (period != chip->last_period[ss]) {
1827                                 chip->last_period[ss] = period;
1828                                 spin_unlock(&chip->lock);
1829                                 snd_pcm_period_elapsed(substream);
1830                                 spin_lock(&chip->lock);
1831                         }
1832                 }
1833         }
1834         spin_unlock(&chip->lock);
1835
1836 #ifdef ECHOCARD_HAS_MIDI
1837         if (st > 0 && chip->midi_in) {
1838                 snd_rawmidi_receive(chip->midi_in, chip->midi_buffer, st);
1839                 DE_MID(("rawmidi_iread=%d\n", st));
1840         }
1841 #endif
1842         return IRQ_HANDLED;
1843 }
1844
1845
1846
1847
1848 /******************************************************************************
1849         Module construction / destruction
1850 ******************************************************************************/
1851
1852 static int snd_echo_free(struct echoaudio *chip)
1853 {
1854         DE_INIT(("Stop DSP...\n"));
1855         if (chip->comm_page) {
1856                 rest_in_peace(chip);
1857                 snd_dma_free_pages(&chip->commpage_dma_buf);
1858         }
1859         DE_INIT(("Stopped.\n"));
1860
1861         if (chip->irq >= 0)
1862                 free_irq(chip->irq, chip);
1863
1864         if (chip->dsp_registers)
1865                 iounmap(chip->dsp_registers);
1866
1867         if (chip->iores)
1868                 release_and_free_resource(chip->iores);
1869
1870         DE_INIT(("MMIO freed.\n"));
1871
1872         pci_disable_device(chip->pci);
1873
1874         /* release chip data */
1875         kfree(chip);
1876         DE_INIT(("Chip freed.\n"));
1877         return 0;
1878 }
1879
1880
1881
1882 static int snd_echo_dev_free(struct snd_device *device)
1883 {
1884         struct echoaudio *chip = device->device_data;
1885
1886         DE_INIT(("snd_echo_dev_free()...\n"));
1887         return snd_echo_free(chip);
1888 }
1889
1890
1891
1892 /* <--snd_echo_probe() */
1893 static __devinit int snd_echo_create(struct snd_card *card,
1894                                      struct pci_dev *pci,
1895                                      struct echoaudio **rchip)
1896 {
1897         struct echoaudio *chip;
1898         int err;
1899         size_t sz;
1900         static struct snd_device_ops ops = {
1901                 .dev_free = snd_echo_dev_free,
1902         };
1903
1904         *rchip = NULL;
1905
1906         pci_write_config_byte(pci, PCI_LATENCY_TIMER, 0xC0);
1907
1908         if ((err = pci_enable_device(pci)) < 0)
1909                 return err;
1910         pci_set_master(pci);
1911
1912         /* allocate a chip-specific data */
1913         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1914         if (!chip) {
1915                 pci_disable_device(pci);
1916                 return -ENOMEM;
1917         }
1918         DE_INIT(("chip=%p\n", chip));
1919
1920         spin_lock_init(&chip->lock);
1921         chip->card = card;
1922         chip->pci = pci;
1923         chip->irq = -1;
1924
1925         /* PCI resource allocation */
1926         chip->dsp_registers_phys = pci_resource_start(pci, 0);
1927         sz = pci_resource_len(pci, 0);
1928         if (sz > PAGE_SIZE)
1929                 sz = PAGE_SIZE;         /* We map only the required part */
1930
1931         if ((chip->iores = request_mem_region(chip->dsp_registers_phys, sz,
1932                                               ECHOCARD_NAME)) == NULL) {
1933                 snd_echo_free(chip);
1934                 snd_printk(KERN_ERR "cannot get memory region\n");
1935                 return -EBUSY;
1936         }
1937         chip->dsp_registers = (volatile u32 __iomem *)
1938                 ioremap_nocache(chip->dsp_registers_phys, sz);
1939
1940         if (request_irq(pci->irq, snd_echo_interrupt, IRQF_SHARED,
1941                         ECHOCARD_NAME, chip)) {
1942                 snd_echo_free(chip);
1943                 snd_printk(KERN_ERR "cannot grab irq\n");
1944                 return -EBUSY;
1945         }
1946         chip->irq = pci->irq;
1947         DE_INIT(("pci=%p irq=%d subdev=%04x Init hardware...\n",
1948                  chip->pci, chip->irq, chip->pci->subsystem_device));
1949
1950         /* Create the DSP comm page - this is the area of memory used for most
1951         of the communication with the DSP, which accesses it via bus mastering */
1952         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1953                                 sizeof(struct comm_page),
1954                                 &chip->commpage_dma_buf) < 0) {
1955                 snd_echo_free(chip);
1956                 snd_printk(KERN_ERR "cannot allocate the comm page\n");
1957                 return -ENOMEM;
1958         }
1959         chip->comm_page_phys = chip->commpage_dma_buf.addr;
1960         chip->comm_page = (struct comm_page *)chip->commpage_dma_buf.area;
1961
1962         err = init_hw(chip, chip->pci->device, chip->pci->subsystem_device);
1963         if (err) {
1964                 DE_INIT(("init_hw err=%d\n", err));
1965                 snd_echo_free(chip);
1966                 return err;
1967         }
1968         DE_INIT(("Card init OK\n"));
1969
1970         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1971                 snd_echo_free(chip);
1972                 return err;
1973         }
1974         atomic_set(&chip->opencount, 0);
1975         init_MUTEX(&chip->mode_mutex);
1976         chip->can_set_rate = 1;
1977         *rchip = chip;
1978         /* Init done ! */
1979         return 0;
1980 }
1981
1982
1983
1984 /* constructor */
1985 static int __devinit snd_echo_probe(struct pci_dev *pci,
1986                                     const struct pci_device_id *pci_id)
1987 {
1988         static int dev;
1989         struct snd_card *card;
1990         struct echoaudio *chip;
1991         char *dsp;
1992         int i, err;
1993
1994         if (dev >= SNDRV_CARDS)
1995                 return -ENODEV;
1996         if (!enable[dev]) {
1997                 dev++;
1998                 return -ENOENT;
1999         }
2000
2001         DE_INIT(("Echoaudio driver starting...\n"));
2002         i = 0;
2003         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2004         if (card == NULL)
2005                 return -ENOMEM;
2006
2007         snd_card_set_dev(card, &pci->dev);
2008
2009         if ((err = snd_echo_create(card, pci, &chip)) < 0) {
2010                 snd_card_free(card);
2011                 return err;
2012         }
2013
2014         strcpy(card->driver, "Echo_" ECHOCARD_NAME);
2015         strcpy(card->shortname, chip->card_name);
2016
2017         dsp = "56301";
2018         if (pci_id->device == 0x3410)
2019                 dsp = "56361";
2020
2021         sprintf(card->longname, "%s rev.%d (DSP%s) at 0x%lx irq %i",
2022                 card->shortname, pci_id->subdevice & 0x000f, dsp,
2023                 chip->dsp_registers_phys, chip->irq);
2024
2025         if ((err = snd_echo_new_pcm(chip)) < 0) {
2026                 snd_printk(KERN_ERR "new pcm error %d\n", err);
2027                 snd_card_free(card);
2028                 return err;
2029         }
2030
2031 #ifdef ECHOCARD_HAS_MIDI
2032         if (chip->has_midi) {   /* Some Mia's do not have midi */
2033                 if ((err = snd_echo_midi_create(card, chip)) < 0) {
2034                         snd_printk(KERN_ERR "new midi error %d\n", err);
2035                         snd_card_free(card);
2036                         return err;
2037                 }
2038         }
2039 #endif
2040
2041 #ifdef ECHOCARD_HAS_VMIXER
2042         snd_echo_vmixer.count = num_pipes_out(chip) * num_busses_out(chip);
2043         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_line_output_gain, chip))) < 0)
2044                 goto ctl_error;
2045         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_vmixer, chip))) < 0)
2046                 goto ctl_error;
2047 #else
2048         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_pcm_output_gain, chip))) < 0)
2049                 goto ctl_error;
2050 #endif
2051
2052 #ifdef ECHOCARD_HAS_INPUT_GAIN
2053         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_line_input_gain, chip))) < 0)
2054                 goto ctl_error;
2055 #endif
2056
2057 #ifdef ECHOCARD_HAS_INPUT_NOMINAL_LEVEL
2058         if (!chip->hasnt_input_nominal_level)
2059                 if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_intput_nominal_level, chip))) < 0)
2060                         goto ctl_error;
2061 #endif
2062
2063 #ifdef ECHOCARD_HAS_OUTPUT_NOMINAL_LEVEL
2064         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_output_nominal_level, chip))) < 0)
2065                 goto ctl_error;
2066 #endif
2067
2068         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_vumeters_switch, chip))) < 0)
2069                 goto ctl_error;
2070
2071         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_vumeters, chip))) < 0)
2072                 goto ctl_error;
2073
2074 #ifdef ECHOCARD_HAS_MONITOR
2075         snd_echo_monitor_mixer.count = num_busses_in(chip) * num_busses_out(chip);
2076         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_monitor_mixer, chip))) < 0)
2077                 goto ctl_error;
2078 #endif
2079
2080 #ifdef ECHOCARD_HAS_DIGITAL_IN_AUTOMUTE
2081         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_automute_switch, chip))) < 0)
2082                 goto ctl_error;
2083 #endif
2084
2085         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_channels_info, chip))) < 0)
2086                 goto ctl_error;
2087
2088 #ifdef ECHOCARD_HAS_DIGITAL_MODE_SWITCH
2089         /* Creates a list of available digital modes */
2090         chip->num_digital_modes = 0;
2091         for (i = 0; i < 6; i++)
2092                 if (chip->digital_modes & (1 << i))
2093                         chip->digital_mode_list[chip->num_digital_modes++] = i;
2094
2095         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_digital_mode_switch, chip))) < 0)
2096                 goto ctl_error;
2097 #endif /* ECHOCARD_HAS_DIGITAL_MODE_SWITCH */
2098
2099 #ifdef ECHOCARD_HAS_EXTERNAL_CLOCK
2100         /* Creates a list of available clock sources */
2101         chip->num_clock_sources = 0;
2102         for (i = 0; i < 10; i++)
2103                 if (chip->input_clock_types & (1 << i))
2104                         chip->clock_source_list[chip->num_clock_sources++] = i;
2105
2106         if (chip->num_clock_sources > 1) {
2107                 chip->clock_src_ctl = snd_ctl_new1(&snd_echo_clock_source_switch, chip);
2108                 if ((err = snd_ctl_add(chip->card, chip->clock_src_ctl)) < 0)
2109                         goto ctl_error;
2110         }
2111 #endif /* ECHOCARD_HAS_EXTERNAL_CLOCK */
2112
2113 #ifdef ECHOCARD_HAS_DIGITAL_IO
2114         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_spdif_mode_switch, chip))) < 0)
2115                 goto ctl_error;
2116 #endif
2117
2118 #ifdef ECHOCARD_HAS_PHANTOM_POWER
2119         if (chip->has_phantom_power)
2120                 if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_echo_phantom_power_switch, chip))) < 0)
2121                         goto ctl_error;
2122 #endif
2123
2124         if ((err = snd_card_register(card)) < 0) {
2125                 snd_card_free(card);
2126                 goto ctl_error;
2127         }
2128         snd_printk(KERN_INFO "Card registered: %s\n", card->longname);
2129
2130         pci_set_drvdata(pci, chip);
2131         dev++;
2132         return 0;
2133
2134 ctl_error:
2135         snd_printk(KERN_ERR "new control error %d\n", err);
2136         snd_card_free(card);
2137         return err;
2138 }
2139
2140
2141
2142 static void __devexit snd_echo_remove(struct pci_dev *pci)
2143 {
2144         struct echoaudio *chip;
2145
2146         chip = pci_get_drvdata(pci);
2147         if (chip)
2148                 snd_card_free(chip->card);
2149         pci_set_drvdata(pci, NULL);
2150 }
2151
2152
2153
2154 /******************************************************************************
2155         Everything starts and ends here
2156 ******************************************************************************/
2157
2158 /* pci_driver definition */
2159 static struct pci_driver driver = {
2160         .name = "Echoaudio " ECHOCARD_NAME,
2161         .id_table = snd_echo_ids,
2162         .probe = snd_echo_probe,
2163         .remove = __devexit_p(snd_echo_remove),
2164 };
2165
2166
2167
2168 /* initialization of the module */
2169 static int __init alsa_card_echo_init(void)
2170 {
2171         return pci_register_driver(&driver);
2172 }
2173
2174
2175
2176 /* clean up the module */
2177 static void __exit alsa_card_echo_exit(void)
2178 {
2179         pci_unregister_driver(&driver);
2180 }
2181
2182
2183 module_init(alsa_card_echo_init)
2184 module_exit(alsa_card_echo_exit)