sound/soc/codecs/hdac_hda.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright(c) 2015-18 Intel Corporation.
   3
   4 /*
   5  * hdac_hda.c - ASoC extensions to reuse the legacy HDA codec drivers
   6  * with ASoC platform drivers. These APIs are called by the legacy HDA
   7  * codec drivers using hdac_ext_bus_ops ops.
   8  */
   9
  10 #include <linux/firmware.h>
  11 #include <linux/init.h>
  12 #include <linux/delay.h>
  13 #include <linux/module.h>
  14 #include <linux/pm_runtime.h>
  15 #include <sound/pcm_params.h>
  16 #include <sound/soc.h>
  17 #include <sound/hdaudio_ext.h>
  18 #include <sound/hda_i915.h>
  19 #include <sound/hda_codec.h>
  20 #include <sound/hda_register.h>
  21
  22 #include "hdac_hda.h"
  23
  24 #define STUB_FORMATS    (SNDRV_PCM_FMTBIT_S8 | \
  25                         SNDRV_PCM_FMTBIT_U8 | \
  26                         SNDRV_PCM_FMTBIT_S16_LE | \
  27                         SNDRV_PCM_FMTBIT_U16_LE | \
  28                         SNDRV_PCM_FMTBIT_S24_LE | \
  29                         SNDRV_PCM_FMTBIT_U24_LE | \
  30                         SNDRV_PCM_FMTBIT_S32_LE | \
  31                         SNDRV_PCM_FMTBIT_U32_LE | \
  32                         SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
  33
  34 #define STUB_HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
  35                                  SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
  36                                  SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
  37                                  SNDRV_PCM_RATE_192000)
  38
  39 #ifdef CONFIG_SND_HDA_PATCH_LOADER
  40 static char *loadable_patch[HDA_MAX_CODECS];
  41
  42 module_param_array_named(patch, loadable_patch, charp, NULL, 0444);
  43 MODULE_PARM_DESC(patch, "Patch file array for Intel HD audio interface. The array index is the codec address.");
  44 #endif
  45
  46 static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
  47                              struct snd_soc_dai *dai);
  48 static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
  49                                struct snd_soc_dai *dai);
  50 static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
  51                                 struct snd_soc_dai *dai);
  52 static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
  53                                   struct snd_pcm_hw_params *params,
  54                                   struct snd_soc_dai *dai);
  55 static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
  56                                 struct snd_soc_dai *dai);
  57 static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai, void *stream,
  58                                    int direction);
  59 static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
  60                                                  struct snd_soc_dai *dai);
  61
  62 static const struct snd_soc_dai_ops hdac_hda_dai_ops = {
  63         .startup = hdac_hda_dai_open,
  64         .shutdown = hdac_hda_dai_close,
  65         .prepare = hdac_hda_dai_prepare,
  66         .hw_params = hdac_hda_dai_hw_params,
  67         .hw_free = hdac_hda_dai_hw_free,
  68         .set_stream = hdac_hda_dai_set_stream,
  69 };
  70
  71 static struct snd_soc_dai_driver hdac_hda_dais[] = {
  72 {
  73         .id = HDAC_ANALOG_DAI_ID,
  74         .name = "Analog Codec DAI",
  75         .ops = &hdac_hda_dai_ops,
  76         .playback = {
  77                 .stream_name    = "Analog Codec Playback",
  78                 .channels_min   = 1,
  79                 .channels_max   = 16,
  80                 .rates          = SNDRV_PCM_RATE_8000_192000,
  81                 .formats        = STUB_FORMATS,
  82                 .sig_bits       = 24,
  83         },
  84         .capture = {
  85                 .stream_name    = "Analog Codec Capture",
  86                 .channels_min   = 1,
  87                 .channels_max   = 16,
  88                 .rates = SNDRV_PCM_RATE_8000_192000,
  89                 .formats = STUB_FORMATS,
  90                 .sig_bits = 24,
  91         },
  92 },
  93 {
  94         .id = HDAC_DIGITAL_DAI_ID,
  95         .name = "Digital Codec DAI",
  96         .ops = &hdac_hda_dai_ops,
  97         .playback = {
  98                 .stream_name    = "Digital Codec Playback",
  99                 .channels_min   = 1,
 100                 .channels_max   = 16,
 101                 .rates          = SNDRV_PCM_RATE_8000_192000,
 102                 .formats        = STUB_FORMATS,
 103                 .sig_bits = 24,
 104         },
 105         .capture = {
 106                 .stream_name    = "Digital Codec Capture",
 107                 .channels_min   = 1,
 108                 .channels_max   = 16,
 109                 .rates = SNDRV_PCM_RATE_8000_192000,
 110                 .formats = STUB_FORMATS,
 111                 .sig_bits = 24,
 112         },
 113 },
 114 {
 115         .id = HDAC_ALT_ANALOG_DAI_ID,
 116         .name = "Alt Analog Codec DAI",
 117         .ops = &hdac_hda_dai_ops,
 118         .playback = {
 119                 .stream_name    = "Alt Analog Codec Playback",
 120                 .channels_min   = 1,
 121                 .channels_max   = 16,
 122                 .rates          = SNDRV_PCM_RATE_8000_192000,
 123                 .formats        = STUB_FORMATS,
 124                 .sig_bits       = 24,
 125         },
 126         .capture = {
 127                 .stream_name    = "Alt Analog Codec Capture",
 128                 .channels_min   = 1,
 129                 .channels_max   = 16,
 130                 .rates = SNDRV_PCM_RATE_8000_192000,
 131                 .formats = STUB_FORMATS,
 132                 .sig_bits = 24,
 133         },
 134 },
 135 };
 136
 137 static struct snd_soc_dai_driver hdac_hda_hdmi_dais[] = {
 138 {
 139         .id = HDAC_HDMI_0_DAI_ID,
 140         .name = "intel-hdmi-hifi1",
 141         .ops = &hdac_hda_dai_ops,
 142         .playback = {
 143                 .stream_name    = "hifi1",
 144                 .channels_min   = 1,
 145                 .channels_max   = 32,
 146                 .rates          = STUB_HDMI_RATES,
 147                 .formats        = STUB_FORMATS,
 148                 .sig_bits = 24,
 149         },
 150 },
 151 {
 152         .id = HDAC_HDMI_1_DAI_ID,
 153         .name = "intel-hdmi-hifi2",
 154         .ops = &hdac_hda_dai_ops,
 155         .playback = {
 156                 .stream_name    = "hifi2",
 157                 .channels_min   = 1,
 158                 .channels_max   = 32,
 159                 .rates          = STUB_HDMI_RATES,
 160                 .formats        = STUB_FORMATS,
 161                 .sig_bits = 24,
 162         },
 163 },
 164 {
 165         .id = HDAC_HDMI_2_DAI_ID,
 166         .name = "intel-hdmi-hifi3",
 167         .ops = &hdac_hda_dai_ops,
 168         .playback = {
 169                 .stream_name    = "hifi3",
 170                 .channels_min   = 1,
 171                 .channels_max   = 32,
 172                 .rates          = STUB_HDMI_RATES,
 173                 .formats        = STUB_FORMATS,
 174                 .sig_bits = 24,
 175         },
 176 },
 177 {
 178         .id = HDAC_HDMI_3_DAI_ID,
 179         .name = "intel-hdmi-hifi4",
 180         .ops = &hdac_hda_dai_ops,
 181         .playback = {
 182                 .stream_name    = "hifi4",
 183                 .channels_min   = 1,
 184                 .channels_max   = 32,
 185                 .rates          = STUB_HDMI_RATES,
 186                 .formats        = STUB_FORMATS,
 187                 .sig_bits = 24,
 188         },
 189 },
 190
 191 };
 192
 193 static int hdac_hda_dai_set_stream(struct snd_soc_dai *dai,
 194                                    void *stream, int direction)
 195 {
 196         struct snd_soc_component *component = dai->component;
 197         struct hdac_hda_priv *hda_pvt;
 198         struct hdac_hda_pcm *pcm;
 199         struct hdac_stream *hstream;
 200
 201         if (!stream)
 202                 return -EINVAL;
 203
 204         hda_pvt = snd_soc_component_get_drvdata(component);
 205         pcm = &hda_pvt->pcm[dai->id];
 206         hstream = (struct hdac_stream *)stream;
 207
 208         pcm->stream_tag[direction] = hstream->stream_tag;
 209
 210         return 0;
 211 }
 212
 213 static int hdac_hda_dai_hw_params(struct snd_pcm_substream *substream,
 214                                   struct snd_pcm_hw_params *params,
 215                                   struct snd_soc_dai *dai)
 216 {
 217         struct snd_soc_component *component = dai->component;
 218         struct hdac_hda_priv *hda_pvt;
 219         unsigned int format_val;
 220         unsigned int maxbps;
 221
 222         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 223                 maxbps = dai->driver->playback.sig_bits;
 224         else
 225                 maxbps = dai->driver->capture.sig_bits;
 226
 227         hda_pvt = snd_soc_component_get_drvdata(component);
 228         format_val = snd_hdac_calc_stream_format(params_rate(params),
 229                                                  params_channels(params),
 230                                                  params_format(params),
 231                                                  maxbps,
 232                                                  0);
 233         if (!format_val) {
 234                 dev_err(dai->dev,
 235                         "invalid format_val, rate=%d, ch=%d, format=%d, maxbps=%d\n",
 236                         params_rate(params), params_channels(params),
 237                         params_format(params), maxbps);
 238
 239                 return -EINVAL;
 240         }
 241
 242         hda_pvt->pcm[dai->id].format_val[substream->stream] = format_val;
 243         return 0;
 244 }
 245
 246 static int hdac_hda_dai_hw_free(struct snd_pcm_substream *substream,
 247                                 struct snd_soc_dai *dai)
 248 {
 249         struct snd_soc_component *component = dai->component;
 250         struct hdac_hda_priv *hda_pvt;
 251         struct hda_pcm_stream *hda_stream;
 252         struct hda_pcm *pcm;
 253
 254         hda_pvt = snd_soc_component_get_drvdata(component);
 255         pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
 256         if (!pcm)
 257                 return -EINVAL;
 258
 259         hda_stream = &pcm->stream[substream->stream];
 260         snd_hda_codec_cleanup(hda_pvt->codec, hda_stream, substream);
 261
 262         return 0;
 263 }
 264
 265 static int hdac_hda_dai_prepare(struct snd_pcm_substream *substream,
 266                                 struct snd_soc_dai *dai)
 267 {
 268         struct snd_soc_component *component = dai->component;
 269         struct hda_pcm_stream *hda_stream;
 270         struct hdac_hda_priv *hda_pvt;
 271         struct hdac_device *hdev;
 272         unsigned int format_val;
 273         struct hda_pcm *pcm;
 274         unsigned int stream;
 275         int ret = 0;
 276
 277         hda_pvt = snd_soc_component_get_drvdata(component);
 278         hdev = &hda_pvt->codec->core;
 279         pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
 280         if (!pcm)
 281                 return -EINVAL;
 282
 283         hda_stream = &pcm->stream[substream->stream];
 284
 285         stream = hda_pvt->pcm[dai->id].stream_tag[substream->stream];
 286         format_val = hda_pvt->pcm[dai->id].format_val[substream->stream];
 287
 288         ret = snd_hda_codec_prepare(hda_pvt->codec, hda_stream,
 289                                     stream, format_val, substream);
 290         if (ret < 0)
 291                 dev_err(&hdev->dev, "codec prepare failed %d\n", ret);
 292
 293         return ret;
 294 }
 295
 296 static int hdac_hda_dai_open(struct snd_pcm_substream *substream,
 297                              struct snd_soc_dai *dai)
 298 {
 299         struct snd_soc_component *component = dai->component;
 300         struct hdac_hda_priv *hda_pvt;
 301         struct hda_pcm_stream *hda_stream;
 302         struct hda_pcm *pcm;
 303
 304         hda_pvt = snd_soc_component_get_drvdata(component);
 305         pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
 306         if (!pcm)
 307                 return -EINVAL;
 308
 309         snd_hda_codec_pcm_get(pcm);
 310
 311         hda_stream = &pcm->stream[substream->stream];
 312
 313         return hda_stream->ops.open(hda_stream, hda_pvt->codec, substream);
 314 }
 315
 316 static void hdac_hda_dai_close(struct snd_pcm_substream *substream,
 317                                struct snd_soc_dai *dai)
 318 {
 319         struct snd_soc_component *component = dai->component;
 320         struct hdac_hda_priv *hda_pvt;
 321         struct hda_pcm_stream *hda_stream;
 322         struct hda_pcm *pcm;
 323
 324         hda_pvt = snd_soc_component_get_drvdata(component);
 325         pcm = snd_soc_find_pcm_from_dai(hda_pvt, dai);
 326         if (!pcm)
 327                 return;
 328
 329         hda_stream = &pcm->stream[substream->stream];
 330
 331         hda_stream->ops.close(hda_stream, hda_pvt->codec, substream);
 332
 333         snd_hda_codec_pcm_put(pcm);
 334 }
 335
 336 static struct hda_pcm *snd_soc_find_pcm_from_dai(struct hdac_hda_priv *hda_pvt,
 337                                                  struct snd_soc_dai *dai)
 338 {
 339         struct hda_codec *hcodec = hda_pvt->codec;
 340         struct hda_pcm *cpcm;
 341         const char *pcm_name;
 342
 343         /*
 344          * map DAI ID to the closest matching PCM name, using the naming
 345          * scheme used by hda-codec snd_hda_gen_build_pcms() and for
 346          * HDMI in hda_codec patch_hdmi.c)
 347          */
 348
 349         switch (dai->id) {
 350         case HDAC_ANALOG_DAI_ID:
 351                 pcm_name = "Analog";
 352                 break;
 353         case HDAC_DIGITAL_DAI_ID:
 354                 pcm_name = "Digital";
 355                 break;
 356         case HDAC_ALT_ANALOG_DAI_ID:
 357                 pcm_name = "Alt Analog";
 358                 break;
 359         case HDAC_HDMI_0_DAI_ID:
 360                 pcm_name = "HDMI 0";
 361                 break;
 362         case HDAC_HDMI_1_DAI_ID:
 363                 pcm_name = "HDMI 1";
 364                 break;
 365         case HDAC_HDMI_2_DAI_ID:
 366                 pcm_name = "HDMI 2";
 367                 break;
 368         case HDAC_HDMI_3_DAI_ID:
 369                 pcm_name = "HDMI 3";
 370                 break;
 371         default:
 372                 dev_err(&hcodec->core.dev, "invalid dai id %d\n", dai->id);
 373                 return NULL;
 374         }
 375
 376         list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
 377                 if (strstr(cpcm->name, pcm_name)) {
 378                         if (strcmp(pcm_name, "Analog") == 0) {
 379                                 if (strstr(cpcm->name, "Alt Analog"))
 380                                         continue;
 381                         }
 382                         return cpcm;
 383                 }
 384         }
 385
 386         dev_err(&hcodec->core.dev, "didn't find PCM for DAI %s\n", dai->name);
 387         return NULL;
 388 }
 389
 390 static bool is_hdmi_codec(struct hda_codec *hcodec)
 391 {
 392         struct hda_pcm *cpcm;
 393
 394         list_for_each_entry(cpcm, &hcodec->pcm_list_head, list) {
 395                 if (cpcm->pcm_type == HDA_PCM_TYPE_HDMI)
 396                         return true;
 397         }
 398
 399         return false;
 400 }
 401
 402 static int hdac_hda_codec_probe(struct snd_soc_component *component)
 403 {
 404         struct hdac_hda_priv *hda_pvt =
 405                         snd_soc_component_get_drvdata(component);
 406         struct snd_soc_dapm_context *dapm =
 407                         snd_soc_component_get_dapm(component);
 408         struct hdac_device *hdev = &hda_pvt->codec->core;
 409         struct hda_codec *hcodec = hda_pvt->codec;
 410         struct hdac_ext_link *hlink;
 411         hda_codec_patch_t patch;
 412         int ret;
 413
 414         hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
 415         if (!hlink) {
 416                 dev_err(&hdev->dev, "hdac link not found\n");
 417                 return -EIO;
 418         }
 419
 420         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
 421
 422         /*
 423          * Ensure any HDA display is powered at codec probe.
 424          * After snd_hda_codec_device_new(), display power is
 425          * managed by runtime PM.
 426          */
 427         if (hda_pvt->need_display_power)
 428                 snd_hdac_display_power(hdev->bus,
 429                                        HDA_CODEC_IDX_CONTROLLER, true);
 430
 431         ret = snd_hda_codec_device_new(hcodec->bus, component->card->snd_card,
 432                                        hdev->addr, hcodec, true);
 433         if (ret < 0) {
 434                 dev_err(&hdev->dev, "failed to create hda codec %d\n", ret);
 435                 goto error_no_pm;
 436         }
 437
 438 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 439         if (loadable_patch[hda_pvt->dev_index] && *loadable_patch[hda_pvt->dev_index]) {
 440                 const struct firmware *fw;
 441
 442                 dev_info(&hdev->dev, "Applying patch firmware '%s'\n",
 443                          loadable_patch[hda_pvt->dev_index]);
 444                 ret = request_firmware(&fw, loadable_patch[hda_pvt->dev_index],
 445                                        &hdev->dev);
 446                 if (ret < 0)
 447                         goto error_no_pm;
 448                 if (fw) {
 449                         ret = snd_hda_load_patch(hcodec->bus, fw->size, fw->data);
 450                         if (ret < 0) {
 451                                 dev_err(&hdev->dev, "failed to load hda patch %d\n", ret);
 452                                 goto error_no_pm;
 453                         }
 454                         release_firmware(fw);
 455                 }
 456         }
 457 #endif
 458         /*
 459          * Overwrite type to HDA_DEV_ASOC since it is a ASoC driver
 460          * hda_codec.c will check this flag to determine if unregister
 461          * device is needed.
 462          */
 463         hdev->type = HDA_DEV_ASOC;
 464
 465         /*
 466          * snd_hda_codec_device_new decrements the usage count so call get pm
 467          * else the device will be powered off
 468          */
 469         pm_runtime_get_noresume(&hdev->dev);
 470
 471         hcodec->bus->card = dapm->card->snd_card;
 472
 473         ret = snd_hda_codec_set_name(hcodec, hcodec->preset->name);
 474         if (ret < 0) {
 475                 dev_err(&hdev->dev, "name failed %s\n", hcodec->preset->name);
 476                 goto error_pm;
 477         }
 478
 479         ret = snd_hdac_regmap_init(&hcodec->core);
 480         if (ret < 0) {
 481                 dev_err(&hdev->dev, "regmap init failed\n");
 482                 goto error_pm;
 483         }
 484
 485         patch = (hda_codec_patch_t)hcodec->preset->driver_data;
 486         if (patch) {
 487                 ret = patch(hcodec);
 488                 if (ret < 0) {
 489                         dev_err(&hdev->dev, "patch failed %d\n", ret);
 490                         goto error_regmap;
 491                 }
 492         } else {
 493                 dev_dbg(&hdev->dev, "no patch file found\n");
 494         }
 495
 496         ret = snd_hda_codec_parse_pcms(hcodec);
 497         if (ret < 0) {
 498                 dev_err(&hdev->dev, "unable to map pcms to dai %d\n", ret);
 499                 goto error_patch;
 500         }
 501
 502         /* HDMI controls need to be created in machine drivers */
 503         if (!is_hdmi_codec(hcodec)) {
 504                 ret = snd_hda_codec_build_controls(hcodec);
 505                 if (ret < 0) {
 506                         dev_err(&hdev->dev, "unable to create controls %d\n",
 507                                 ret);
 508                         goto error_patch;
 509                 }
 510         }
 511
 512         hcodec->core.lazy_cache = true;
 513
 514         if (hda_pvt->need_display_power)
 515                 snd_hdac_display_power(hdev->bus,
 516                                        HDA_CODEC_IDX_CONTROLLER, false);
 517
 518         /* match for forbid call in snd_hda_codec_device_new() */
 519         pm_runtime_allow(&hdev->dev);
 520
 521         /*
 522          * hdac_device core already sets the state to active and calls
 523          * get_noresume. So enable runtime and set the device to suspend.
 524          * pm_runtime_enable is also called during codec registeration
 525          */
 526         pm_runtime_put(&hdev->dev);
 527         pm_runtime_suspend(&hdev->dev);
 528
 529         return 0;
 530
 531 error_patch:
 532         if (hcodec->patch_ops.free)
 533                 hcodec->patch_ops.free(hcodec);
 534 error_regmap:
 535         snd_hdac_regmap_exit(hdev);
 536 error_pm:
 537         pm_runtime_put(&hdev->dev);
 538 error_no_pm:
 539         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
 540         return ret;
 541 }
 542
 543 static void hdac_hda_codec_remove(struct snd_soc_component *component)
 544 {
 545         struct hdac_hda_priv *hda_pvt =
 546                       snd_soc_component_get_drvdata(component);
 547         struct hdac_device *hdev = &hda_pvt->codec->core;
 548         struct hda_codec *codec = hda_pvt->codec;
 549         struct hdac_ext_link *hlink = NULL;
 550
 551         hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
 552         if (!hlink) {
 553                 dev_err(&hdev->dev, "hdac link not found\n");
 554                 return;
 555         }
 556
 557         pm_runtime_disable(&hdev->dev);
 558         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
 559
 560         if (codec->patch_ops.free)
 561                 codec->patch_ops.free(codec);
 562
 563         snd_hda_codec_cleanup_for_unbind(codec);
 564 }
 565
 566 static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = {
 567         {"AIF1TX", NULL, "Codec Input Pin1"},
 568         {"AIF2TX", NULL, "Codec Input Pin2"},
 569         {"AIF3TX", NULL, "Codec Input Pin3"},
 570
 571         {"Codec Output Pin1", NULL, "AIF1RX"},
 572         {"Codec Output Pin2", NULL, "AIF2RX"},
 573         {"Codec Output Pin3", NULL, "AIF3RX"},
 574 };
 575
 576 static const struct snd_soc_dapm_widget hdac_hda_dapm_widgets[] = {
 577         /* Audio Interface */
 578         SND_SOC_DAPM_AIF_IN("AIF1RX", "Analog Codec Playback", 0,
 579                             SND_SOC_NOPM, 0, 0),
 580         SND_SOC_DAPM_AIF_IN("AIF2RX", "Digital Codec Playback", 0,
 581                             SND_SOC_NOPM, 0, 0),
 582         SND_SOC_DAPM_AIF_IN("AIF3RX", "Alt Analog Codec Playback", 0,
 583                             SND_SOC_NOPM, 0, 0),
 584         SND_SOC_DAPM_AIF_OUT("AIF1TX", "Analog Codec Capture", 0,
 585                              SND_SOC_NOPM, 0, 0),
 586         SND_SOC_DAPM_AIF_OUT("AIF2TX", "Digital Codec Capture", 0,
 587                              SND_SOC_NOPM, 0, 0),
 588         SND_SOC_DAPM_AIF_OUT("AIF3TX", "Alt Analog Codec Capture", 0,
 589                              SND_SOC_NOPM, 0, 0),
 590
 591         /* Input Pins */
 592         SND_SOC_DAPM_INPUT("Codec Input Pin1"),
 593         SND_SOC_DAPM_INPUT("Codec Input Pin2"),
 594         SND_SOC_DAPM_INPUT("Codec Input Pin3"),
 595
 596         /* Output Pins */
 597         SND_SOC_DAPM_OUTPUT("Codec Output Pin1"),
 598         SND_SOC_DAPM_OUTPUT("Codec Output Pin2"),
 599         SND_SOC_DAPM_OUTPUT("Codec Output Pin3"),
 600 };
 601
 602 static const struct snd_soc_component_driver hdac_hda_codec = {
 603         .probe                  = hdac_hda_codec_probe,
 604         .remove                 = hdac_hda_codec_remove,
 605         .dapm_widgets           = hdac_hda_dapm_widgets,
 606         .num_dapm_widgets       = ARRAY_SIZE(hdac_hda_dapm_widgets),
 607         .dapm_routes            = hdac_hda_dapm_routes,
 608         .num_dapm_routes        = ARRAY_SIZE(hdac_hda_dapm_routes),
 609         .idle_bias_on           = false,
 610         .endianness             = 1,
 611 };
 612
 613 static const struct snd_soc_component_driver hdac_hda_hdmi_codec = {
 614         .probe                  = hdac_hda_codec_probe,
 615         .remove                 = hdac_hda_codec_remove,
 616         .idle_bias_on           = false,
 617         .endianness             = 1,
 618 };
 619
 620 static int hdac_hda_dev_probe(struct hdac_device *hdev)
 621 {
 622         struct hdac_hda_priv *hda_pvt = dev_get_drvdata(&hdev->dev);
 623         struct hdac_ext_link *hlink;
 624         int ret;
 625
 626         /* hold the ref while we probe */
 627         hlink = snd_hdac_ext_bus_get_hlink_by_name(hdev->bus, dev_name(&hdev->dev));
 628         if (!hlink) {
 629                 dev_err(&hdev->dev, "hdac link not found\n");
 630                 return -EIO;
 631         }
 632         snd_hdac_ext_bus_link_get(hdev->bus, hlink);
 633
 634         /* ASoC specific initialization */
 635         if (hda_pvt->need_display_power)
 636                 ret = devm_snd_soc_register_component(&hdev->dev,
 637                                                 &hdac_hda_hdmi_codec, hdac_hda_hdmi_dais,
 638                                                 ARRAY_SIZE(hdac_hda_hdmi_dais));
 639         else
 640                 ret = devm_snd_soc_register_component(&hdev->dev,
 641                                                 &hdac_hda_codec, hdac_hda_dais,
 642                                                 ARRAY_SIZE(hdac_hda_dais));
 643
 644         if (ret < 0) {
 645                 dev_err(&hdev->dev, "failed to register HDA codec %d\n", ret);
 646                 return ret;
 647         }
 648
 649         snd_hdac_ext_bus_link_put(hdev->bus, hlink);
 650
 651         return ret;
 652 }
 653
 654 static int hdac_hda_dev_remove(struct hdac_device *hdev)
 655 {
 656         /*
 657          * Resources are freed in hdac_hda_codec_remove(). This
 658          * function is kept to keep hda_codec_driver_remove() happy.
 659          */
 660         return 0;
 661 }
 662
 663 static struct hdac_ext_bus_ops hdac_ops = {
 664         .hdev_attach = hdac_hda_dev_probe,
 665         .hdev_detach = hdac_hda_dev_remove,
 666 };
 667
 668 struct hdac_ext_bus_ops *snd_soc_hdac_hda_get_ops(void)
 669 {
 670         return &hdac_ops;
 671 }
 672 EXPORT_SYMBOL_GPL(snd_soc_hdac_hda_get_ops);
 673
 674 MODULE_LICENSE("GPL v2");
 675 MODULE_DESCRIPTION("ASoC Extensions for legacy HDA Drivers");
 676 MODULE_AUTHOR("Rakesh Ughreja<rakesh.a.ughreja@intel.com>");