linux/sound/pci/au88x0/au88x0_pcm.c
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   1/*
   2 *  This program is free software; you can redistribute it and/or modify
   3 *  it under the terms of the GNU General Public License as published by
   4 *  the Free Software Foundation; either version 2 of the License, or
   5 *  (at your option) any later version.
   6 *
   7 *  This program is distributed in the hope that it will be useful,
   8 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   9 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10 *  GNU Library General Public License for more details.
  11 *
  12 *  You should have received a copy of the GNU General Public License
  13 *  along with this program; if not, write to the Free Software
  14 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  15 */
  16 
  17/*
  18 * Vortex PCM ALSA driver.
  19 *
  20 * Supports ADB and WT DMA. Unfortunately, WT channels do not run yet.
  21 * It remains stuck,and DMA transfers do not happen. 
  22 */
  23#include <sound/asoundef.h>
  24#include <linux/time.h>
  25#include <sound/core.h>
  26#include <sound/pcm.h>
  27#include <sound/pcm_params.h>
  28#include "au88x0.h"
  29
  30#define VORTEX_PCM_TYPE(x) (x->name[40])
  31
  32/* hardware definition */
  33static const struct snd_pcm_hardware snd_vortex_playback_hw_adb = {
  34        .info =
  35            (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
  36             SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
  37             SNDRV_PCM_INFO_MMAP_VALID),
  38        .formats =
  39            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
  40            SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
  41        .rates = SNDRV_PCM_RATE_CONTINUOUS,
  42        .rate_min = 5000,
  43        .rate_max = 48000,
  44        .channels_min = 1,
  45        .channels_max = 2,
  46        .buffer_bytes_max = 0x10000,
  47        .period_bytes_min = 0x20,
  48        .period_bytes_max = 0x1000,
  49        .periods_min = 2,
  50        .periods_max = 1024,
  51};
  52
  53#ifndef CHIP_AU8820
  54static const struct snd_pcm_hardware snd_vortex_playback_hw_a3d = {
  55        .info =
  56            (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
  57             SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
  58             SNDRV_PCM_INFO_MMAP_VALID),
  59        .formats =
  60            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
  61            SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW,
  62        .rates = SNDRV_PCM_RATE_CONTINUOUS,
  63        .rate_min = 5000,
  64        .rate_max = 48000,
  65        .channels_min = 1,
  66        .channels_max = 1,
  67        .buffer_bytes_max = 0x10000,
  68        .period_bytes_min = 0x100,
  69        .period_bytes_max = 0x1000,
  70        .periods_min = 2,
  71        .periods_max = 64,
  72};
  73#endif
  74static const struct snd_pcm_hardware snd_vortex_playback_hw_spdif = {
  75        .info =
  76            (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
  77             SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
  78             SNDRV_PCM_INFO_MMAP_VALID),
  79        .formats =
  80            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U8 |
  81            SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | SNDRV_PCM_FMTBIT_MU_LAW |
  82            SNDRV_PCM_FMTBIT_A_LAW,
  83        .rates =
  84            SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
  85        .rate_min = 32000,
  86        .rate_max = 48000,
  87        .channels_min = 1,
  88        .channels_max = 2,
  89        .buffer_bytes_max = 0x10000,
  90        .period_bytes_min = 0x100,
  91        .period_bytes_max = 0x1000,
  92        .periods_min = 2,
  93        .periods_max = 64,
  94};
  95
  96#ifndef CHIP_AU8810
  97static const struct snd_pcm_hardware snd_vortex_playback_hw_wt = {
  98        .info = (SNDRV_PCM_INFO_MMAP |
  99                 SNDRV_PCM_INFO_INTERLEAVED |
 100                 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
 101        .formats = SNDRV_PCM_FMTBIT_S16_LE,
 102        .rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS, // SNDRV_PCM_RATE_48000,
 103        .rate_min = 8000,
 104        .rate_max = 48000,
 105        .channels_min = 1,
 106        .channels_max = 2,
 107        .buffer_bytes_max = 0x10000,
 108        .period_bytes_min = 0x0400,
 109        .period_bytes_max = 0x1000,
 110        .periods_min = 2,
 111        .periods_max = 64,
 112};
 113#endif
 114#ifdef CHIP_AU8830
 115static const unsigned int au8830_channels[3] = {
 116        1, 2, 4,
 117};
 118
 119static const struct snd_pcm_hw_constraint_list hw_constraints_au8830_channels = {
 120        .count = ARRAY_SIZE(au8830_channels),
 121        .list = au8830_channels,
 122        .mask = 0,
 123};
 124#endif
 125
 126static void vortex_notify_pcm_vol_change(struct snd_card *card,
 127                        struct snd_kcontrol *kctl, int activate)
 128{
 129        if (activate)
 130                kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 131        else
 132                kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 133        snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE |
 134                                SNDRV_CTL_EVENT_MASK_INFO, &(kctl->id));
 135}
 136
 137/* open callback */
 138static int snd_vortex_pcm_open(struct snd_pcm_substream *substream)
 139{
 140        vortex_t *vortex = snd_pcm_substream_chip(substream);
 141        struct snd_pcm_runtime *runtime = substream->runtime;
 142        int err;
 143        
 144        /* Force equal size periods */
 145        if ((err =
 146             snd_pcm_hw_constraint_integer(runtime,
 147                                           SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
 148                return err;
 149        /* Avoid PAGE_SIZE boundary to fall inside of a period. */
 150        if ((err =
 151             snd_pcm_hw_constraint_pow2(runtime, 0,
 152                                        SNDRV_PCM_HW_PARAM_PERIOD_BYTES)) < 0)
 153                return err;
 154
 155        snd_pcm_hw_constraint_step(runtime, 0,
 156                                        SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 64);
 157
 158        if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 159#ifndef CHIP_AU8820
 160                if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_A3D) {
 161                        runtime->hw = snd_vortex_playback_hw_a3d;
 162                }
 163#endif
 164                if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_SPDIF) {
 165                        runtime->hw = snd_vortex_playback_hw_spdif;
 166                        switch (vortex->spdif_sr) {
 167                        case 32000:
 168                                runtime->hw.rates = SNDRV_PCM_RATE_32000;
 169                                break;
 170                        case 44100:
 171                                runtime->hw.rates = SNDRV_PCM_RATE_44100;
 172                                break;
 173                        case 48000:
 174                                runtime->hw.rates = SNDRV_PCM_RATE_48000;
 175                                break;
 176                        }
 177                }
 178                if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB
 179                    || VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_I2S)
 180                        runtime->hw = snd_vortex_playback_hw_adb;
 181#ifdef CHIP_AU8830
 182                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
 183                        VORTEX_IS_QUAD(vortex) &&
 184                        VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
 185                        runtime->hw.channels_max = 4;
 186                        snd_pcm_hw_constraint_list(runtime, 0,
 187                                SNDRV_PCM_HW_PARAM_CHANNELS,
 188                                &hw_constraints_au8830_channels);
 189                }
 190#endif
 191                substream->runtime->private_data = NULL;
 192        }
 193#ifndef CHIP_AU8810
 194        else {
 195                runtime->hw = snd_vortex_playback_hw_wt;
 196                substream->runtime->private_data = NULL;
 197        }
 198#endif
 199        return 0;
 200}
 201
 202/* close callback */
 203static int snd_vortex_pcm_close(struct snd_pcm_substream *substream)
 204{
 205        //vortex_t *chip = snd_pcm_substream_chip(substream);
 206        stream_t *stream = (stream_t *) substream->runtime->private_data;
 207
 208        // the hardware-specific codes will be here
 209        if (stream != NULL) {
 210                stream->substream = NULL;
 211                stream->nr_ch = 0;
 212        }
 213        substream->runtime->private_data = NULL;
 214        return 0;
 215}
 216
 217/* hw_params callback */
 218static int
 219snd_vortex_pcm_hw_params(struct snd_pcm_substream *substream,
 220                         struct snd_pcm_hw_params *hw_params)
 221{
 222        vortex_t *chip = snd_pcm_substream_chip(substream);
 223        stream_t *stream = (stream_t *) (substream->runtime->private_data);
 224        int err;
 225
 226        // Alloc buffer memory.
 227        err =
 228            snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 229        if (err < 0) {
 230                dev_err(chip->card->dev, "Vortex: pcm page alloc failed!\n");
 231                return err;
 232        }
 233        /*
 234           pr_info( "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params),
 235           params_period_bytes(hw_params), params_channels(hw_params));
 236         */
 237        spin_lock_irq(&chip->lock);
 238        // Make audio routes and config buffer DMA.
 239        if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 240                int dma, type = VORTEX_PCM_TYPE(substream->pcm);
 241                /* Dealloc any routes. */
 242                if (stream != NULL)
 243                        vortex_adb_allocroute(chip, stream->dma,
 244                                              stream->nr_ch, stream->dir,
 245                                              stream->type,
 246                                              substream->number);
 247                /* Alloc routes. */
 248                dma =
 249                    vortex_adb_allocroute(chip, -1,
 250                                          params_channels(hw_params),
 251                                          substream->stream, type,
 252                                          substream->number);
 253                if (dma < 0) {
 254                        spin_unlock_irq(&chip->lock);
 255                        return dma;
 256                }
 257                stream = substream->runtime->private_data = &chip->dma_adb[dma];
 258                stream->substream = substream;
 259                /* Setup Buffers. */
 260                vortex_adbdma_setbuffers(chip, dma,
 261                                         params_period_bytes(hw_params),
 262                                         params_periods(hw_params));
 263                if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
 264                        chip->pcm_vol[substream->number].active = 1;
 265                        vortex_notify_pcm_vol_change(chip->card,
 266                                chip->pcm_vol[substream->number].kctl, 1);
 267                }
 268        }
 269#ifndef CHIP_AU8810
 270        else {
 271                /* if (stream != NULL)
 272                   vortex_wt_allocroute(chip, substream->number, 0); */
 273                vortex_wt_allocroute(chip, substream->number,
 274                                     params_channels(hw_params));
 275                stream = substream->runtime->private_data =
 276                    &chip->dma_wt[substream->number];
 277                stream->dma = substream->number;
 278                stream->substream = substream;
 279                vortex_wtdma_setbuffers(chip, substream->number,
 280                                        params_period_bytes(hw_params),
 281                                        params_periods(hw_params));
 282        }
 283#endif
 284        spin_unlock_irq(&chip->lock);
 285        return 0;
 286}
 287
 288/* hw_free callback */
 289static int snd_vortex_pcm_hw_free(struct snd_pcm_substream *substream)
 290{
 291        vortex_t *chip = snd_pcm_substream_chip(substream);
 292        stream_t *stream = (stream_t *) (substream->runtime->private_data);
 293
 294        spin_lock_irq(&chip->lock);
 295        // Delete audio routes.
 296        if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 297                if (stream != NULL) {
 298                        if (VORTEX_PCM_TYPE(substream->pcm) == VORTEX_PCM_ADB) {
 299                                chip->pcm_vol[substream->number].active = 0;
 300                                vortex_notify_pcm_vol_change(chip->card,
 301                                        chip->pcm_vol[substream->number].kctl,
 302                                        0);
 303                        }
 304                        vortex_adb_allocroute(chip, stream->dma,
 305                                              stream->nr_ch, stream->dir,
 306                                              stream->type,
 307                                              substream->number);
 308                }
 309        }
 310#ifndef CHIP_AU8810
 311        else {
 312                if (stream != NULL)
 313                        vortex_wt_allocroute(chip, stream->dma, 0);
 314        }
 315#endif
 316        substream->runtime->private_data = NULL;
 317        spin_unlock_irq(&chip->lock);
 318
 319        return snd_pcm_lib_free_pages(substream);
 320}
 321
 322/* prepare callback */
 323static int snd_vortex_pcm_prepare(struct snd_pcm_substream *substream)
 324{
 325        vortex_t *chip = snd_pcm_substream_chip(substream);
 326        struct snd_pcm_runtime *runtime = substream->runtime;
 327        stream_t *stream = (stream_t *) substream->runtime->private_data;
 328        int dma = stream->dma, fmt, dir;
 329
 330        // set up the hardware with the current configuration.
 331        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 332                dir = 1;
 333        else
 334                dir = 0;
 335        fmt = vortex_alsafmt_aspfmt(runtime->format, chip);
 336        spin_lock_irq(&chip->lock);
 337        if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 338                vortex_adbdma_setmode(chip, dma, 1, dir, fmt,
 339                                runtime->channels == 1 ? 0 : 1, 0);
 340                vortex_adbdma_setstartbuffer(chip, dma, 0);
 341                if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_SPDIF)
 342                        vortex_adb_setsrc(chip, dma, runtime->rate, dir);
 343        }
 344#ifndef CHIP_AU8810
 345        else {
 346                vortex_wtdma_setmode(chip, dma, 1, fmt, 0, 0);
 347                // FIXME: Set rate (i guess using vortex_wt_writereg() somehow).
 348                vortex_wtdma_setstartbuffer(chip, dma, 0);
 349        }
 350#endif
 351        spin_unlock_irq(&chip->lock);
 352        return 0;
 353}
 354
 355/* trigger callback */
 356static int snd_vortex_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 357{
 358        vortex_t *chip = snd_pcm_substream_chip(substream);
 359        stream_t *stream = (stream_t *) substream->runtime->private_data;
 360        int dma = stream->dma;
 361
 362        spin_lock(&chip->lock);
 363        switch (cmd) {
 364        case SNDRV_PCM_TRIGGER_START:
 365                // do something to start the PCM engine
 366                //printk(KERN_INFO "vortex: start %d\n", dma);
 367                stream->fifo_enabled = 1;
 368                if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) {
 369                        vortex_adbdma_resetup(chip, dma);
 370                        vortex_adbdma_startfifo(chip, dma);
 371                }
 372#ifndef CHIP_AU8810
 373                else {
 374                        dev_info(chip->card->dev, "wt start %d\n", dma);
 375                        vortex_wtdma_startfifo(chip, dma);
 376                }
 377#endif
 378                break;
 379        case SNDRV_PCM_TRIGGER_STOP:
 380                // do something to stop the PCM engine
 381                //printk(KERN_INFO "vortex: stop %d\n", dma);
 382                stream->fifo_enabled = 0;
 383                if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 384                        vortex_adbdma_stopfifo(chip, dma);
 385#ifndef CHIP_AU8810
 386                else {
 387                        dev_info(chip->card->dev, "wt stop %d\n", dma);
 388                        vortex_wtdma_stopfifo(chip, dma);
 389                }
 390#endif
 391                break;
 392        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 393                //printk(KERN_INFO "vortex: pause %d\n", dma);
 394                if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 395                        vortex_adbdma_pausefifo(chip, dma);
 396#ifndef CHIP_AU8810
 397                else
 398                        vortex_wtdma_pausefifo(chip, dma);
 399#endif
 400                break;
 401        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 402                //printk(KERN_INFO "vortex: resume %d\n", dma);
 403                if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 404                        vortex_adbdma_resumefifo(chip, dma);
 405#ifndef CHIP_AU8810
 406                else
 407                        vortex_wtdma_resumefifo(chip, dma);
 408#endif
 409                break;
 410        default:
 411                spin_unlock(&chip->lock);
 412                return -EINVAL;
 413        }
 414        spin_unlock(&chip->lock);
 415        return 0;
 416}
 417
 418/* pointer callback */
 419static snd_pcm_uframes_t snd_vortex_pcm_pointer(struct snd_pcm_substream *substream)
 420{
 421        vortex_t *chip = snd_pcm_substream_chip(substream);
 422        stream_t *stream = (stream_t *) substream->runtime->private_data;
 423        int dma = stream->dma;
 424        snd_pcm_uframes_t current_ptr = 0;
 425
 426        spin_lock(&chip->lock);
 427        if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT)
 428                current_ptr = vortex_adbdma_getlinearpos(chip, dma);
 429#ifndef CHIP_AU8810
 430        else
 431                current_ptr = vortex_wtdma_getlinearpos(chip, dma);
 432#endif
 433        //printk(KERN_INFO "vortex: pointer = 0x%x\n", current_ptr);
 434        spin_unlock(&chip->lock);
 435        current_ptr = bytes_to_frames(substream->runtime, current_ptr);
 436        if (current_ptr >= substream->runtime->buffer_size)
 437                current_ptr = 0;
 438        return current_ptr;
 439}
 440
 441/* operators */
 442static const struct snd_pcm_ops snd_vortex_playback_ops = {
 443        .open = snd_vortex_pcm_open,
 444        .close = snd_vortex_pcm_close,
 445        .ioctl = snd_pcm_lib_ioctl,
 446        .hw_params = snd_vortex_pcm_hw_params,
 447        .hw_free = snd_vortex_pcm_hw_free,
 448        .prepare = snd_vortex_pcm_prepare,
 449        .trigger = snd_vortex_pcm_trigger,
 450        .pointer = snd_vortex_pcm_pointer,
 451        .page = snd_pcm_sgbuf_ops_page,
 452};
 453
 454/*
 455*  definitions of capture are omitted here...
 456*/
 457
 458static char *vortex_pcm_prettyname[VORTEX_PCM_LAST] = {
 459        CARD_NAME " ADB",
 460        CARD_NAME " SPDIF",
 461        CARD_NAME " A3D",
 462        CARD_NAME " WT",
 463        CARD_NAME " I2S",
 464};
 465static char *vortex_pcm_name[VORTEX_PCM_LAST] = {
 466        "adb",
 467        "spdif",
 468        "a3d",
 469        "wt",
 470        "i2s",
 471};
 472
 473/* SPDIF kcontrol */
 474
 475static int snd_vortex_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 476{
 477        uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 478        uinfo->count = 1;
 479        return 0;
 480}
 481
 482static int snd_vortex_spdif_mask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 483{
 484        ucontrol->value.iec958.status[0] = 0xff;
 485        ucontrol->value.iec958.status[1] = 0xff;
 486        ucontrol->value.iec958.status[2] = 0xff;
 487        ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 488        return 0;
 489}
 490
 491static int snd_vortex_spdif_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 492{
 493        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 494        ucontrol->value.iec958.status[0] = 0x00;
 495        ucontrol->value.iec958.status[1] = IEC958_AES1_CON_ORIGINAL|IEC958_AES1_CON_DIGDIGCONV_ID;
 496        ucontrol->value.iec958.status[2] = 0x00;
 497        switch (vortex->spdif_sr) {
 498        case 32000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_32000; break;
 499        case 44100: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_44100; break;
 500        case 48000: ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS_48000; break;
 501        }
 502        return 0;
 503}
 504
 505static int snd_vortex_spdif_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 506{
 507        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 508        int spdif_sr = 48000;
 509        switch (ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) {
 510        case IEC958_AES3_CON_FS_32000: spdif_sr = 32000; break;
 511        case IEC958_AES3_CON_FS_44100: spdif_sr = 44100; break;
 512        case IEC958_AES3_CON_FS_48000: spdif_sr = 48000; break;
 513        }
 514        if (spdif_sr == vortex->spdif_sr)
 515                return 0;
 516        vortex->spdif_sr = spdif_sr;
 517        vortex_spdif_init(vortex, vortex->spdif_sr, 1);
 518        return 1;
 519}
 520
 521/* spdif controls */
 522static struct snd_kcontrol_new snd_vortex_mixer_spdif[] = {
 523        {
 524                .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
 525                .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 526                .info =         snd_vortex_spdif_info,
 527                .get =          snd_vortex_spdif_get,
 528                .put =          snd_vortex_spdif_put,
 529        },
 530        {
 531                .access =       SNDRV_CTL_ELEM_ACCESS_READ,
 532                .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
 533                .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 534                .info =         snd_vortex_spdif_info,
 535                .get =          snd_vortex_spdif_mask_get
 536        },
 537};
 538
 539/* subdevice PCM Volume control */
 540
 541static int snd_vortex_pcm_vol_info(struct snd_kcontrol *kcontrol,
 542                                struct snd_ctl_elem_info *uinfo)
 543{
 544        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 545        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 546        uinfo->count = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
 547        uinfo->value.integer.min = -128;
 548        uinfo->value.integer.max = 32;
 549        return 0;
 550}
 551
 552static int snd_vortex_pcm_vol_get(struct snd_kcontrol *kcontrol,
 553                                struct snd_ctl_elem_value *ucontrol)
 554{
 555        int i;
 556        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 557        int subdev = kcontrol->id.subdevice;
 558        struct pcm_vol *p = &vortex->pcm_vol[subdev];
 559        int max_chn = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
 560        for (i = 0; i < max_chn; i++)
 561                ucontrol->value.integer.value[i] = p->vol[i];
 562        return 0;
 563}
 564
 565static int snd_vortex_pcm_vol_put(struct snd_kcontrol *kcontrol,
 566                                struct snd_ctl_elem_value *ucontrol)
 567{
 568        int i;
 569        int changed = 0;
 570        int mixin;
 571        unsigned char vol;
 572        vortex_t *vortex = snd_kcontrol_chip(kcontrol);
 573        int subdev = kcontrol->id.subdevice;
 574        struct pcm_vol *p = &vortex->pcm_vol[subdev];
 575        int max_chn = (VORTEX_IS_QUAD(vortex) ? 4 : 2);
 576        for (i = 0; i < max_chn; i++) {
 577                if (p->vol[i] != ucontrol->value.integer.value[i]) {
 578                        p->vol[i] = ucontrol->value.integer.value[i];
 579                        if (p->active) {
 580                                switch (vortex->dma_adb[p->dma].nr_ch) {
 581                                case 1:
 582                                        mixin = p->mixin[0];
 583                                        break;
 584                                case 2:
 585                                default:
 586                                        mixin = p->mixin[(i < 2) ? i : (i - 2)];
 587                                        break;
 588                                case 4:
 589                                        mixin = p->mixin[i];
 590                                        break;
 591                                }
 592                                vol = p->vol[i];
 593                                vortex_mix_setinputvolumebyte(vortex,
 594                                        vortex->mixplayb[i], mixin, vol);
 595                        }
 596                        changed = 1;
 597                }
 598        }
 599        return changed;
 600}
 601
 602static const DECLARE_TLV_DB_MINMAX(vortex_pcm_vol_db_scale, -9600, 2400);
 603
 604static const struct snd_kcontrol_new snd_vortex_pcm_vol = {
 605        .iface = SNDRV_CTL_ELEM_IFACE_PCM,
 606        .name = "PCM Playback Volume",
 607        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
 608                SNDRV_CTL_ELEM_ACCESS_TLV_READ |
 609                SNDRV_CTL_ELEM_ACCESS_INACTIVE,
 610        .info = snd_vortex_pcm_vol_info,
 611        .get = snd_vortex_pcm_vol_get,
 612        .put = snd_vortex_pcm_vol_put,
 613        .tlv = { .p = vortex_pcm_vol_db_scale },
 614};
 615
 616/* create a pcm device */
 617static int snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
 618{
 619        struct snd_pcm *pcm;
 620        struct snd_kcontrol *kctl;
 621        int i;
 622        int err, nr_capt;
 623
 624        if (!chip || idx < 0 || idx >= VORTEX_PCM_LAST)
 625                return -ENODEV;
 626
 627        /* idx indicates which kind of PCM device. ADB, SPDIF, I2S and A3D share the 
 628         * same dma engine. WT uses it own separate dma engine which can't capture. */
 629        if (idx == VORTEX_PCM_ADB)
 630                nr_capt = nr;
 631        else
 632                nr_capt = 0;
 633        err = snd_pcm_new(chip->card, vortex_pcm_prettyname[idx], idx, nr,
 634                          nr_capt, &pcm);
 635        if (err < 0)
 636                return err;
 637        snprintf(pcm->name, sizeof(pcm->name),
 638                "%s %s", CARD_NAME_SHORT, vortex_pcm_name[idx]);
 639        chip->pcm[idx] = pcm;
 640        // This is an evil hack, but it saves a lot of duplicated code.
 641        VORTEX_PCM_TYPE(pcm) = idx;
 642        pcm->private_data = chip;
 643        /* set operators */
 644        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 645                        &snd_vortex_playback_ops);
 646        if (idx == VORTEX_PCM_ADB)
 647                snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
 648                                &snd_vortex_playback_ops);
 649        
 650        /* pre-allocation of Scatter-Gather buffers */
 651        
 652        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
 653                                              snd_dma_pci_data(chip->pci_dev),
 654                                              0x10000, 0x10000);
 655
 656        switch (VORTEX_PCM_TYPE(pcm)) {
 657        case VORTEX_PCM_ADB:
 658                err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 659                                             snd_pcm_std_chmaps,
 660                                             VORTEX_IS_QUAD(chip) ? 4 : 2,
 661                                             0, NULL);
 662                if (err < 0)
 663                        return err;
 664                err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_CAPTURE,
 665                                             snd_pcm_std_chmaps, 2, 0, NULL);
 666                if (err < 0)
 667                        return err;
 668                break;
 669#ifdef CHIP_AU8830
 670        case VORTEX_PCM_A3D:
 671                err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 672                                             snd_pcm_std_chmaps, 1, 0, NULL);
 673                if (err < 0)
 674                        return err;
 675                break;
 676#endif
 677        }
 678
 679        if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_SPDIF) {
 680                for (i = 0; i < ARRAY_SIZE(snd_vortex_mixer_spdif); i++) {
 681                        kctl = snd_ctl_new1(&snd_vortex_mixer_spdif[i], chip);
 682                        if (!kctl)
 683                                return -ENOMEM;
 684                        if ((err = snd_ctl_add(chip->card, kctl)) < 0)
 685                                return err;
 686                }
 687        }
 688        if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_ADB) {
 689                for (i = 0; i < NR_PCM; i++) {
 690                        chip->pcm_vol[i].active = 0;
 691                        chip->pcm_vol[i].dma = -1;
 692                        kctl = snd_ctl_new1(&snd_vortex_pcm_vol, chip);
 693                        if (!kctl)
 694                                return -ENOMEM;
 695                        chip->pcm_vol[i].kctl = kctl;
 696                        kctl->id.device = 0;
 697                        kctl->id.subdevice = i;
 698                        err = snd_ctl_add(chip->card, kctl);
 699                        if (err < 0)
 700                                return err;
 701                }
 702        }
 703        return 0;
 704}
 705