sound/pci/au88x0/au88x0_pcm.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  */
   4
   5 /*
   6  * Vortex PCM ALSA driver.
   7  *
   8  * Supports ADB and WT DMA. Unfortunately, WT channels do not run yet.
   9  * It remains stuck,and DMA transfers do not happen.
  10  */
  11 #include <sound/asoundef.h>
  12 #include <linux/time.h>
  13 #include <sound/core.h>
  14 #include <sound/pcm.h>
  15 #include <sound/pcm_params.h>
  16 #include "au88x0.h"
  17
  18 #define VORTEX_PCM_TYPE(x) (x->name[40])
  19
  20 /* hardware definition */
  21 static const struct snd_pcm_hardware snd_vortex_playback_hw_adb = {
  22         .info =
  23             (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
  24              SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
  25              SNDRV_PCM_INFO_MMAP_VALID),
  26         .formats =
  27             SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
  28             SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
  29         .rates = SNDRV_PCM_RATE_CONTINUOUS,
  30         .rate_min = 5000,
  31         .rate_max = 48000,
  32         .channels_min = 1,
  33         .channels_max = 2,
  34         .buffer_bytes_max = 0x10000,
  35         .period_bytes_min = 0x20,
  36         .period_bytes_max = 0x1000,
  37         .periods_min = 2,
  38         .periods_max = 1024,
  39 };
  40
  41 #ifndef CHIP_AU8820
  42 static const struct snd_pcm_hardware snd_vortex_playback_hw_a3d = {
  43         .info =
  44             (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
  45              SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
  46              SNDRV_PCM_INFO_MMAP_VALID),
  47         .formats =
  48             SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
  49             SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
  50         .rates = SNDRV_PCM_RATE_CONTINUOUS,
  51         .rate_min = 5000,
  52         .rate_max = 48000,
  53         .channels_min = 1,
  54         .channels_max = 1,
  55         .buffer_bytes_max = 0x10000,
  56         .period_bytes_min = 0x100,
  57         .period_bytes_max = 0x1000,
  58         .periods_min = 2,
  59         .periods_max = 64,
  60 };
  61 #endif
  62 static const struct snd_pcm_hardware snd_vortex_playback_hw_spdif = {
  63         .info =
  64             (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
  65              SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
  66              SNDRV_PCM_INFO_MMAP_VALID),
  67         .formats =
  68             SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
  69             SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | SNDRV_PCM_FMTBIT_MU_LAW |
  70             SNDRV_PCM_FMTBIT_A_LAW,
  71         .rates =
  72             SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
  73         .rate_min = 32000,
  74         .rate_max = 48000,
  75         .channels_min = 1,
  76         .channels_max = 2,
  77         .buffer_bytes_max = 0x10000,
  78         .period_bytes_min = 0x100,
  79         .period_bytes_max = 0x1000,
  80         .periods_min = 2,
  81         .periods_max = 64,
  82 };
  83
  84 #ifndef CHIP_AU8810
  85 static const struct snd_pcm_hardware snd_vortex_playback_hw_wt = {
  86         .info = (SNDRV_PCM_INFO_MMAP |
  87                  SNDRV_PCM_INFO_INTERLEAVED |
  88                  SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
  89         .formats = SNDRV_PCM_FMTBIT_S16_LE,
  90         .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS, // SNDRV_PCM_RATE_48000,
  91         .rate_min = 8000,
  92         .rate_max = 48000,
  93         .channels_min = 1,
  94         .channels_max = 2,
  95         .buffer_bytes_max = 0x10000,
  96         .period_bytes_min = 0x0400,
  97         .period_bytes_max = 0x1000,
  98         .periods_min = 2,
  99         .periods_max = 64,
 100 };
 101 #endif
 102 #ifdef CHIP_AU8830
 103 static const unsigned int au8830_channels[3] = {
 104         1, 2, 4,
 105 };
 106
 107 static const struct snd_pcm_hw_constraint_list hw_constraints_au8830_channels = {
 108         .count = ARRAY_SIZE(au8830_channels),
 109         .list = au8830_channels,
 110         .mask = 0,
 111 };
 112 #endif
 113
 114 static void vortex_notify_pcm_vol_change(struct snd_card *card,
 115                         struct snd_kcontrol *kctl, int activate)
 116 {
 117         if (activate)
 118                 kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 119         else
 120                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 121         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE |
 122                                 SNDRV_CTL_EVENT_MASK_INFO, &(kctl->id));
 123 }
 124
 125 /* open callback */
 126 static int snd_vortex_pcm_open(struct snd_pcm_substream *substream)
 127 {
 128         vortex_t *vortex = snd_pcm_substream_chip(substream);
 129         struct snd_pcm_runtime *runtime = substream->runtime;
 130         int err;
 131
 132         /* Force equal size periods */
 133         err = snd_pcm_hw_constraint_integer(runtime,
 134                                             SNDRV_PCM_HW_PARAM_PERIODS);
 135         if (err < 0)
 136                 return err;
 137         /* Avoid PAGE_SIZE boundary to fall inside of a period. */
 138         err = snd_pcm_hw_constraint_pow2(runtime, 0,
 139                                          SNDRV_PCM_HW_PARAM_PERIOD_BYTES);
 140         if (err < 0)
 141                 return err;
 142
 143         snd_pcm_hw_constraint_step(runtime, 0,
 144                                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 64);
 145
 146         if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 147 #ifndef CHIP_AU8820
 148                 if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_A3D) {
 149                         runtime->hw = snd_vortex_playback_hw_a3d;
 150                 }
 151 #endif
 152                 if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_SPDIF) {
 153                         runtime->hw = snd_vortex_playback_hw_spdif;
 154                         switch (vortex->spdif_sr) {
 155                         case 32000:
 156                                 runtime->hw.rates = SNDRV_PCM_RATE_32000;
 157                                 break;
 158                         case 44100:
 159                                 runtime->hw.rates = SNDRV_PCM_RATE_44100;
 160                                 break;
 161                         case 48000:
 162                                 runtime->hw.rates = SNDRV_PCM_RATE_48000;
 163                                 break;
 164                         }
 165                 }
 166                 if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB
 167                     || VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_I2S)
 168                         runtime->hw = snd_vortex_playback_hw_adb;
 169 #ifdef CHIP_AU8830
 170                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
 171                         VORTEX_IS_QUAD(vortex) &&
 172                         VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
 173                         runtime->hw.channels_max = 4;
 174                         snd_pcm_hw_constraint_list(runtime, 0,
 175                                 SNDRV_PCM_HW_PARAM_CHANNELS,
 176                                 &hw_constraints_au8830_channels);
 177                 }
 178 #endif
 179                 substream->runtime->private_data = NULL;
 180         }
 181 #ifndef CHIP_AU8810
 182         else {
 183                 runtime->hw = snd_vortex_playback_hw_wt;
 184                 substream->runtime->private_data = NULL;
 185         }
 186 #endif
 187         return 0;
 188 }
 189
 190 /* close callback */
 191 static int snd_vortex_pcm_close(struct snd_pcm_substream *substream)
 192 {
 193         //vortex_t *chip = snd_pcm_substream_chip(substream);
 194         stream_t *stream = (stream_t *) substream->runtime->private_data;
 195
 196         // the hardware-specific codes will be here
 197         if (stream != NULL) {
 198                 stream->substream = NULL;
 199                 stream->nr_ch = 0;
 200         }
 201         substream->runtime->private_data = NULL;
 202         return 0;
 203 }
 204
 205 /* hw_params callback */
 206 static int
 207 snd_vortex_pcm_hw_params(struct snd_pcm_substream *substream,
 208                          struct snd_pcm_hw_params *hw_params)
 209 {
 210         vortex_t *chip = snd_pcm_substream_chip(substream);
 211         stream_t *stream = (stream_t *) (substream->runtime->private_data);
 212
 213         /*
 214            pr_info( "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params),
 215            params_period_bytes(hw_params), params_channels(hw_params));
 216          */
 217         spin_lock_irq(&chip->lock);
 218         // Make audio routes and config buffer DMA.
 219         if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 220                 int dma, type = VORTEX_PCM_TYPE(substream->pcm);
 221                 /* Dealloc any routes. */
 222                 if (stream != NULL)
 223                         vortex_adb_allocroute(chip, stream->dma,
 224                                               stream->nr_ch, stream->dir,
 225                                               stream->type,
 226                                               substream->number);
 227                 /* Alloc routes. */
 228                 dma =
 229                     vortex_adb_allocroute(chip, -1,
 230                                           params_channels(hw_params),
 231                                           substream->stream, type,
 232                                           substream->number);
 233                 if (dma < 0) {
 234                         spin_unlock_irq(&chip->lock);
 235                         return dma;
 236                 }
 237                 stream = substream->runtime->private_data = &chip->dma_adb[dma];
 238                 stream->substream = substream;
 239                 /* Setup Buffers. */
 240                 vortex_adbdma_setbuffers(chip, dma,
 241                                          params_period_bytes(hw_params),
 242                                          params_periods(hw_params));
 243                 if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
 244                         chip->pcm_vol[substream->number].active = 1;
 245                         vortex_notify_pcm_vol_change(chip->card,
 246                                 chip->pcm_vol[substream->number].kctl, 1);
 247                 }
 248         }
 249 #ifndef CHIP_AU8810
 250         else {
 251                 /* if (stream != NULL)
 252                    vortex_wt_allocroute(chip, substream->number, 0); */
 253                 vortex_wt_allocroute(chip, substream->number,
 254                                      params_channels(hw_params));
 255                 stream = substream->runtime->private_data =
 256                     &chip->dma_wt[substream->number];
 257                 stream->dma = substream->number;
 258                 stream->substream = substream;
 259                 vortex_wtdma_setbuffers(chip, substream->number,
 260                                         params_period_bytes(hw_params),
 261                                         params_periods(hw_params));
 262         }
 263 #endif
 264         spin_unlock_irq(&chip->lock);
 265         return 0;
 266 }
 267
 268 /* hw_free callback */
 269 static int snd_vortex_pcm_hw_free(struct snd_pcm_substream *substream)
 270 {
 271         vortex_t *chip = snd_pcm_substream_chip(substream);
 272         stream_t *stream = (stream_t *) (substream->runtime->private_data);
 273
 274         spin_lock_irq(&chip->lock);
 275         // Delete audio routes.
 276         if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 277                 if (stream != NULL) {
 278                         if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
 279                                 chip->pcm_vol[substream->number].active = 0;
 280                                 vortex_notify_pcm_vol_change(chip->card,
 281                                         chip->pcm_vol[substream->number].kctl,
 282                                         0);
 283                         }
 284                         vortex_adb_allocroute(chip, stream->dma,
 285                                               stream->nr_ch, stream->dir,
 286                                               stream->type,
 287                                               substream->number);
 288                 }
 289         }
 290 #ifndef CHIP_AU8810
 291         else {
 292                 if (stream != NULL)
 293                         vortex_wt_allocroute(chip, stream->dma, 0);
 294         }
 295 #endif
 296         substream->runtime->private_data = NULL;
 297         spin_unlock_irq(&chip->lock);
 298
 299         return 0;
 300 }
 301
 302 /* prepare callback */
 303 static int snd_vortex_pcm_prepare(struct snd_pcm_substream *substream)
 304 {
 305         vortex_t *chip = snd_pcm_substream_chip(substream);
 306         struct snd_pcm_runtime *runtime = substream->runtime;
 307         stream_t *stream = (stream_t *) substream->runtime->private_data;
 308         int dma = stream->dma, fmt, dir;
 309
 310         // set up the hardware with the current configuration.
 311         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 312                 dir = 1;
 313         else
 314                 dir = 0;
 315         fmt = vortex_alsafmt_aspfmt(runtime->format, chip);
 316         spin_lock_irq(&chip->lock);
 317         if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 318                 vortex_adbdma_setmode(chip, dma, 1, dir, fmt,
 319                                 runtime->channels == 1 ? 0 : 1, 0);
 320                 vortex_adbdma_setstartbuffer(chip, dma, 0);
 321                 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_SPDIF)
 322                         vortex_adb_setsrc(chip, dma, runtime->rate, dir);
 323         }
 324 #ifndef CHIP_AU8810
 325         else {
 326                 vortex_wtdma_setmode(chip, dma, 1, fmt, 0, 0);
 327                 // FIXME: Set rate (i guess using vortex_wt_writereg() somehow).
 328                 vortex_wtdma_setstartbuffer(chip, dma, 0);
 329         }
 330 #endif
 331         spin_unlock_irq(&chip->lock);
 332         return 0;
 333 }
 334
 335 /* trigger callback */
 336 static int snd_vortex_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 337 {
 338         vortex_t *chip = snd_pcm_substream_chip(substream);
 339         stream_t *stream = (stream_t *) substream->runtime->private_data;
 340         int dma = stream->dma;
 341
 342         spin_lock(&chip->lock);
 343         switch (cmd) {
 344         case SNDRV_PCM_TRIGGER_START:
 345                 // do something to start the PCM engine
 346                 //printk(KERN_INFO "vortex: start %d\n", dma);
 347                 stream->fifo_enabled = 1;
 348                 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 349                         vortex_adbdma_resetup(chip, dma);
 350                         vortex_adbdma_startfifo(chip, dma);
 351                 }
 352 #ifndef CHIP_AU8810
 353                 else {
 354                         dev_info(chip->card->dev, "wt start %d\n", dma);
 355                         vortex_wtdma_startfifo(chip, dma);
 356                 }
 357 #endif
 358                 break;
 359         case SNDRV_PCM_TRIGGER_STOP:
 360                 // do something to stop the PCM engine
 361                 //printk(KERN_INFO "vortex: stop %d\n", dma);
 362                 stream->fifo_enabled = 0;
 363                 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 364                         vortex_adbdma_stopfifo(chip, dma);
 365 #ifndef CHIP_AU8810
 366                 else {
 367                         dev_info(chip->card->dev, "wt stop %d\n", dma);
 368                         vortex_wtdma_stopfifo(chip, dma);
 369                 }
 370 #endif
 371                 break;
 372         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 373                 //printk(KERN_INFO "vortex: pause %d\n", dma);
 374                 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 375                         vortex_adbdma_pausefifo(chip, dma);
 376 #ifndef CHIP_AU8810
 377                 else
 378                         vortex_wtdma_pausefifo(chip, dma);
 379 #endif
 380                 break;
 381         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 382                 //printk(KERN_INFO "vortex: resume %d\n", dma);
 383                 if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 384                         vortex_adbdma_resumefifo(chip, dma);
 385 #ifndef CHIP_AU8810
 386                 else
 387                         vortex_wtdma_resumefifo(chip, dma);
 388 #endif
 389                 break;
 390         default:
 391                 spin_unlock(&chip->lock);
 392                 return -EINVAL;
 393         }
 394         spin_unlock(&chip->lock);
 395         return 0;
 396 }
 397
 398 /* pointer callback */
 399 static snd_pcm_uframes_t snd_vortex_pcm_pointer(struct snd_pcm_substream *substream)
 400 {
 401         vortex_t *chip = snd_pcm_substream_chip(substream);
 402         stream_t *stream = (stream_t *) substream->runtime->private_data;
 403         int dma = stream->dma;
 404         snd_pcm_uframes_t current_ptr = 0;
 405
 406         spin_lock(&chip->lock);
 407         if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 408                 current_ptr = vortex_adbdma_getlinearpos(chip, dma);
 409 #ifndef CHIP_AU8810
 410         else
 411                 current_ptr = vortex_wtdma_getlinearpos(chip, dma);
 412 #endif
 413         //printk(KERN_INFO "vortex: pointer = 0x%x\n", current_ptr);
 414         spin_unlock(&chip->lock);
 415         current_ptr = bytes_to_frames(substream->runtime, current_ptr);
 416         if (current_ptr >= substream->runtime->buffer_size)
 417                 current_ptr = 0;
 418         return current_ptr;
 419 }
 420
 421 /* operators */
 422 static const struct snd_pcm_ops snd_vortex_playback_ops = {
 423         .open = snd_vortex_pcm_open,
 424         .close = snd_vortex_pcm_close,
 425         .hw_params = snd_vortex_pcm_hw_params,
 426         .hw_free = snd_vortex_pcm_hw_free,
 427         .prepare = snd_vortex_pcm_prepare,
 428         .trigger = snd_vortex_pcm_trigger,
 429         .pointer = snd_vortex_pcm_pointer,
 430 };
 431
 432 /*
 433 *  definitions of capture are omitted here...
 434 */
 435
 436 static const char * const vortex_pcm_prettyname[VORTEX_PCM_LAST] = {
 437         CARD_NAME " ADB",
 438         CARD_NAME " SPDIF",
 439         CARD_NAME " A3D",
 440         CARD_NAME " WT",
 441         CARD_NAME " I2S",
 442 };
 443 static const char * const vortex_pcm_name[VORTEX_PCM_LAST] = {
 444         "adb",
 445         "spdif",
 446         "a3d",
 447         "wt",
 448         "i2s",
 449 };
 450
 451 /* SPDIF kcontrol */
 452
 453 static int snd_vortex_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 454 {
 455         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 456         uinfo->count = 1;
 457         return 0;
 458 }
 459
 460 static int snd_vortex_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 461 {
 462         ucontrol->value.iec958.status[0] = 0xff;
 463         ucontrol->value.iec958.status[1] = 0xff;
 464         ucontrol->value.iec958.status[2] = 0xff;
 465         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 466         return 0;
 467 }
 468
 469 static int snd_vortex_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 470 {
 471         vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 472         ucontrol->value.iec958.status[0] = 0x00;
 473         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_ORIGINAL|IEC958_AES1_CON_DIGDIGCONV_ID;
 474         ucontrol->value.iec958.status[2] = 0x00;
 475         switch (vortex->spdif_sr) {
 476         case 32000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_32000; break;
 477         case 44100: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_44100; break;
 478         case 48000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_48000; break;
 479         }
 480         return 0;
 481 }
 482
 483 static int snd_vortex_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 484 {
 485         vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 486         int spdif_sr = 48000;
 487         switch (ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) {
 488         case IEC958_AES3_CON_FS_32000: spdif_sr = 32000; break;
 489         case IEC958_AES3_CON_FS_44100: spdif_sr = 44100; break;
 490         case IEC958_AES3_CON_FS_48000: spdif_sr = 48000; break;
 491         }
 492         if (spdif_sr == vortex->spdif_sr)
 493                 return 0;
 494         vortex->spdif_sr = spdif_sr;
 495         vortex_spdif_init(vortex, vortex->spdif_sr, 1);
 496         return 1;
 497 }
 498
 499 /* spdif controls */
 500 static const struct snd_kcontrol_new snd_vortex_mixer_spdif[] = {
 501         {
 502                 .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
 503                 .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 504                 .info =         snd_vortex_spdif_info,
 505                 .get =          snd_vortex_spdif_get,
 506                 .put =          snd_vortex_spdif_put,
 507         },
 508         {
 509                 .access =       SNDRV_CTL_ELEM_ACCESS_READ,
 510                 .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
 511                 .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 512                 .info =         snd_vortex_spdif_info,
 513                 .get =          snd_vortex_spdif_mask_get
 514         },
 515 };
 516
 517 /* subdevice PCM Volume control */
 518
 519 static int snd_vortex_pcm_vol_info(struct snd_kcontrol *kcontrol,
 520                                 struct snd_ctl_elem_info *uinfo)
 521 {
 522         vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 523         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 524         uinfo->count = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
 525         uinfo->value.integer.min = -128;
 526         uinfo->value.integer.max = 32;
 527         return 0;
 528 }
 529
 530 static int snd_vortex_pcm_vol_get(struct snd_kcontrol *kcontrol,
 531                                 struct snd_ctl_elem_value *ucontrol)
 532 {
 533         int i;
 534         vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 535         int subdev = kcontrol->id.subdevice;
 536         struct pcm_vol *p = &vortex->pcm_vol[subdev];
 537         int max_chn = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
 538         for (i = 0; i < max_chn; i++)
 539                 ucontrol->value.integer.value[i] = p->vol[i];
 540         return 0;
 541 }
 542
 543 static int snd_vortex_pcm_vol_put(struct snd_kcontrol *kcontrol,
 544                                 struct snd_ctl_elem_value *ucontrol)
 545 {
 546         int i;
 547         int changed = 0;
 548         int mixin;
 549         unsigned char vol;
 550         vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 551         int subdev = kcontrol->id.subdevice;
 552         struct pcm_vol *p = &vortex->pcm_vol[subdev];
 553         int max_chn = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
 554         for (i = 0; i < max_chn; i++) {
 555                 if (p->vol[i] != ucontrol->value.integer.value[i]) {
 556                         p->vol[i] = ucontrol->value.integer.value[i];
 557                         if (p->active) {
 558                                 switch (vortex->dma_adb[p->dma].nr_ch) {
 559                                 case 1:
 560                                         mixin = p->mixin[0];
 561                                         break;
 562                                 case 2:
 563                                 default:
 564                                         mixin = p->mixin[(i < 2) ? i : (i - 2)];
 565                                         break;
 566                                 case 4:
 567                                         mixin = p->mixin[i];
 568                                         break;
 569                                 }
 570                                 vol = p->vol[i];
 571                                 vortex_mix_setinputvolumebyte(vortex,
 572                                         vortex->mixplayb[i], mixin, vol);
 573                         }
 574                         changed = 1;
 575                 }
 576         }
 577         return changed;
 578 }
 579
 580 static const DECLARE_TLV_DB_MINMAX(vortex_pcm_vol_db_scale, -9600, 2400);
 581
 582 static const struct snd_kcontrol_new snd_vortex_pcm_vol = {
 583         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 584         .name = "PCM Playback Volume",
 585         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 586                 SNDRV_CTL_ELEM_ACCESS_TLV_READ |
 587                 SNDRV_CTL_ELEM_ACCESS_INACTIVE,
 588         .info = snd_vortex_pcm_vol_info,
 589         .get = snd_vortex_pcm_vol_get,
 590         .put = snd_vortex_pcm_vol_put,
 591         .tlv = { .p = vortex_pcm_vol_db_scale },
 592 };
 593
 594 /* create a pcm device */
 595 static int snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
 596 {
 597         struct snd_pcm *pcm;
 598         struct snd_kcontrol *kctl;
 599         int i;
 600         int err, nr_capt;
 601
 602         if (!chip || idx < 0 || idx >= VORTEX_PCM_LAST)
 603                 return -ENODEV;
 604
 605         /* idx indicates which kind of PCM device. ADB, SPDIF, I2S and A3D share the
 606          * same dma engine. WT uses it own separate dma engine which can't capture. */
 607         if (idx == VORTEX_PCM_ADB)
 608                 nr_capt = nr;
 609         else
 610                 nr_capt = 0;
 611         err = snd_pcm_new(chip->card, vortex_pcm_prettyname[idx], idx, nr,
 612                           nr_capt, &pcm);
 613         if (err < 0)
 614                 return err;
 615         snprintf(pcm->name, sizeof(pcm->name),
 616                 "%s %s", CARD_NAME_SHORT, vortex_pcm_name[idx]);
 617         chip->pcm[idx] = pcm;
 618         // This is an evil hack, but it saves a lot of duplicated code.
 619         VORTEX_PCM_TYPE(pcm) = idx;
 620         pcm->private_data = chip;
 621         /* set operators */
 622         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 623                         &snd_vortex_playback_ops);
 624         if (idx == VORTEX_PCM_ADB)
 625                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
 626                                 &snd_vortex_playback_ops);
 627
 628         /* pre-allocation of Scatter-Gather buffers */
 629
 630         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
 631                                        &chip->pci_dev->dev, 0x10000, 0x10000);
 632
 633         switch (VORTEX_PCM_TYPE(pcm)) {
 634         case VORTEX_PCM_ADB:
 635                 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 636                                              snd_pcm_std_chmaps,
 637                                              VORTEX_IS_QUAD(chip) ? 4 : 2,
 638                                              0, NULL);
 639                 if (err < 0)
 640                         return err;
 641                 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_CAPTURE,
 642                                              snd_pcm_std_chmaps, 2, 0, NULL);
 643                 if (err < 0)
 644                         return err;
 645                 break;
 646 #ifdef CHIP_AU8830
 647         case VORTEX_PCM_A3D:
 648                 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 649                                              snd_pcm_std_chmaps, 1, 0, NULL);
 650                 if (err < 0)
 651                         return err;
 652                 break;
 653 #endif
 654         }
 655
 656         if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_SPDIF) {
 657                 for (i = 0; i < ARRAY_SIZE(snd_vortex_mixer_spdif); i++) {
 658                         kctl = snd_ctl_new1(&snd_vortex_mixer_spdif[i], chip);
 659                         if (!kctl)
 660                                 return -ENOMEM;
 661                         err = snd_ctl_add(chip->card, kctl);
 662                         if (err < 0)
 663                                 return err;
 664                 }
 665         }
 666         if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_ADB) {
 667                 for (i = 0; i < NR_PCM; i++) {
 668                         chip->pcm_vol[i].active = 0;
 669                         chip->pcm_vol[i].dma = -1;
 670                         kctl = snd_ctl_new1(&snd_vortex_pcm_vol, chip);
 671                         if (!kctl)
 672                                 return -ENOMEM;
 673                         chip->pcm_vol[i].kctl = kctl;
 674                         kctl->id.device = 0;
 675                         kctl->id.subdevice = i;
 676                         err = snd_ctl_add(chip->card, kctl);
 677                         if (err < 0)
 678                                 return err;
 679                 }
 680         }
 681         return 0;
 682 }