sound/soc/qcom/qdsp6/q6asm-dai.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
   3 // Copyright (c) 2018, Linaro Limited
   4
   5 #include <linux/init.h>
   6 #include <linux/err.h>
   7 #include <linux/module.h>
   8 #include <linux/platform_device.h>
   9 #include <linux/slab.h>
  10 #include <sound/soc.h>
  11 #include <sound/soc-dapm.h>
  12 #include <sound/pcm.h>
  13 #include <asm/dma.h>
  14 #include <linux/dma-mapping.h>
  15 #include <linux/of_device.h>
  16 #include <sound/pcm_params.h>
  17 #include "q6asm.h"
  18 #include "q6routing.h"
  19 #include "q6dsp-errno.h"
  20
  21 #define DRV_NAME        "q6asm-fe-dai"
  22
  23 #define PLAYBACK_MIN_NUM_PERIODS    2
  24 #define PLAYBACK_MAX_NUM_PERIODS   8
  25 #define PLAYBACK_MAX_PERIOD_SIZE    65536
  26 #define PLAYBACK_MIN_PERIOD_SIZE    128
  27 #define CAPTURE_MIN_NUM_PERIODS     2
  28 #define CAPTURE_MAX_NUM_PERIODS     8
  29 #define CAPTURE_MAX_PERIOD_SIZE     4096
  30 #define CAPTURE_MIN_PERIOD_SIZE     320
  31 #define SID_MASK_DEFAULT        0xF
  32
  33 enum stream_state {
  34         Q6ASM_STREAM_IDLE = 0,
  35         Q6ASM_STREAM_STOPPED,
  36         Q6ASM_STREAM_RUNNING,
  37 };
  38
  39 struct q6asm_dai_rtd {
  40         struct snd_pcm_substream *substream;
  41         phys_addr_t phys;
  42         unsigned int pcm_size;
  43         unsigned int pcm_count;
  44         unsigned int pcm_irq_pos;       /* IRQ position */
  45         unsigned int periods;
  46         uint16_t bits_per_sample;
  47         uint16_t source; /* Encoding source bit mask */
  48         struct audio_client *audio_client;
  49         uint16_t session_id;
  50         enum stream_state state;
  51 };
  52
  53 struct q6asm_dai_data {
  54         long long int sid;
  55 };
  56
  57 static struct snd_pcm_hardware q6asm_dai_hardware_capture = {
  58         .info =                 (SNDRV_PCM_INFO_MMAP |
  59                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
  60                                 SNDRV_PCM_INFO_MMAP_VALID |
  61                                 SNDRV_PCM_INFO_INTERLEAVED |
  62                                 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
  63         .formats =              (SNDRV_PCM_FMTBIT_S16_LE |
  64                                 SNDRV_PCM_FMTBIT_S24_LE),
  65         .rates =                SNDRV_PCM_RATE_8000_48000,
  66         .rate_min =             8000,
  67         .rate_max =             48000,
  68         .channels_min =         1,
  69         .channels_max =         4,
  70         .buffer_bytes_max =     CAPTURE_MAX_NUM_PERIODS *
  71                                 CAPTURE_MAX_PERIOD_SIZE,
  72         .period_bytes_min =     CAPTURE_MIN_PERIOD_SIZE,
  73         .period_bytes_max =     CAPTURE_MAX_PERIOD_SIZE,
  74         .periods_min =          CAPTURE_MIN_NUM_PERIODS,
  75         .periods_max =          CAPTURE_MAX_NUM_PERIODS,
  76         .fifo_size =            0,
  77 };
  78
  79 static struct snd_pcm_hardware q6asm_dai_hardware_playback = {
  80         .info =                 (SNDRV_PCM_INFO_MMAP |
  81                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
  82                                 SNDRV_PCM_INFO_MMAP_VALID |
  83                                 SNDRV_PCM_INFO_INTERLEAVED |
  84                                 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
  85         .formats =              (SNDRV_PCM_FMTBIT_S16_LE |
  86                                 SNDRV_PCM_FMTBIT_S24_LE),
  87         .rates =                SNDRV_PCM_RATE_8000_192000,
  88         .rate_min =             8000,
  89         .rate_max =             192000,
  90         .channels_min =         1,
  91         .channels_max =         8,
  92         .buffer_bytes_max =     (PLAYBACK_MAX_NUM_PERIODS *
  93                                 PLAYBACK_MAX_PERIOD_SIZE),
  94         .period_bytes_min =     PLAYBACK_MIN_PERIOD_SIZE,
  95         .period_bytes_max =     PLAYBACK_MAX_PERIOD_SIZE,
  96         .periods_min =          PLAYBACK_MIN_NUM_PERIODS,
  97         .periods_max =          PLAYBACK_MAX_NUM_PERIODS,
  98         .fifo_size =            0,
  99 };
 100
 101 #define Q6ASM_FEDAI_DRIVER(num) { \
 102                 .playback = {                                           \
 103                         .stream_name = "MultiMedia"#num" Playback",     \
 104                         .rates = (SNDRV_PCM_RATE_8000_192000|           \
 105                                         SNDRV_PCM_RATE_KNOT),           \
 106                         .formats = (SNDRV_PCM_FMTBIT_S16_LE |           \
 107                                         SNDRV_PCM_FMTBIT_S24_LE),       \
 108                         .channels_min = 1,                              \
 109                         .channels_max = 8,                              \
 110                         .rate_min =     8000,                           \
 111                         .rate_max =     192000,                         \
 112                 },                                                      \
 113                 .capture = {                                            \
 114                         .stream_name = "MultiMedia"#num" Capture",      \
 115                         .rates = (SNDRV_PCM_RATE_8000_48000|            \
 116                                         SNDRV_PCM_RATE_KNOT),           \
 117                         .formats = (SNDRV_PCM_FMTBIT_S16_LE |           \
 118                                     SNDRV_PCM_FMTBIT_S24_LE),           \
 119                         .channels_min = 1,                              \
 120                         .channels_max = 4,                              \
 121                         .rate_min =     8000,                           \
 122                         .rate_max =     48000,                          \
 123                 },                                                      \
 124                 .name = "MultiMedia"#num,                               \
 125                 .probe = fe_dai_probe,                                  \
 126                 .id = MSM_FRONTEND_DAI_MULTIMEDIA##num,                 \
 127         }
 128
 129 /* Conventional and unconventional sample rate supported */
 130 static unsigned int supported_sample_rates[] = {
 131         8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000,
 132         88200, 96000, 176400, 192000
 133 };
 134
 135 static struct snd_pcm_hw_constraint_list constraints_sample_rates = {
 136         .count = ARRAY_SIZE(supported_sample_rates),
 137         .list = supported_sample_rates,
 138         .mask = 0,
 139 };
 140
 141 static void event_handler(uint32_t opcode, uint32_t token,
 142                           uint32_t *payload, void *priv)
 143 {
 144         struct q6asm_dai_rtd *prtd = priv;
 145         struct snd_pcm_substream *substream = prtd->substream;
 146
 147         switch (opcode) {
 148         case ASM_CLIENT_EVENT_CMD_RUN_DONE:
 149                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 150                         q6asm_write_async(prtd->audio_client,
 151                                    prtd->pcm_count, 0, 0, NO_TIMESTAMP);
 152                 break;
 153         case ASM_CLIENT_EVENT_CMD_EOS_DONE:
 154                 prtd->state = Q6ASM_STREAM_STOPPED;
 155                 break;
 156         case ASM_CLIENT_EVENT_DATA_WRITE_DONE: {
 157                 prtd->pcm_irq_pos += prtd->pcm_count;
 158                 snd_pcm_period_elapsed(substream);
 159                 if (prtd->state == Q6ASM_STREAM_RUNNING)
 160                         q6asm_write_async(prtd->audio_client,
 161                                            prtd->pcm_count, 0, 0, NO_TIMESTAMP);
 162
 163                 break;
 164                 }
 165         case ASM_CLIENT_EVENT_DATA_READ_DONE:
 166                 prtd->pcm_irq_pos += prtd->pcm_count;
 167                 snd_pcm_period_elapsed(substream);
 168                 if (prtd->state == Q6ASM_STREAM_RUNNING)
 169                         q6asm_read(prtd->audio_client);
 170
 171                 break;
 172         default:
 173                 break;
 174         }
 175 }
 176
 177 static int q6asm_dai_prepare(struct snd_pcm_substream *substream)
 178 {
 179         struct snd_pcm_runtime *runtime = substream->runtime;
 180         struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
 181         struct q6asm_dai_rtd *prtd = runtime->private_data;
 182         struct snd_soc_component *c = snd_soc_rtdcom_lookup(soc_prtd, DRV_NAME);
 183         struct q6asm_dai_data *pdata;
 184         int ret, i;
 185
 186         pdata = snd_soc_component_get_drvdata(c);
 187         if (!pdata)
 188                 return -EINVAL;
 189
 190         if (!prtd || !prtd->audio_client) {
 191                 pr_err("%s: private data null or audio client freed\n",
 192                         __func__);
 193                 return -EINVAL;
 194         }
 195
 196         prtd->pcm_count = snd_pcm_lib_period_bytes(substream);
 197         prtd->pcm_irq_pos = 0;
 198         /* rate and channels are sent to audio driver */
 199         if (prtd->state) {
 200                 /* clear the previous setup if any  */
 201                 q6asm_cmd(prtd->audio_client, CMD_CLOSE);
 202                 q6asm_unmap_memory_regions(substream->stream,
 203                                            prtd->audio_client);
 204                 q6routing_stream_close(soc_prtd->dai_link->id,
 205                                          substream->stream);
 206         }
 207
 208         ret = q6asm_map_memory_regions(substream->stream, prtd->audio_client,
 209                                        prtd->phys,
 210                                        (prtd->pcm_size / prtd->periods),
 211                                        prtd->periods);
 212
 213         if (ret < 0) {
 214                 pr_err("Audio Start: Buffer Allocation failed rc = %d\n",
 215                                                         ret);
 216                 return -ENOMEM;
 217         }
 218
 219         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 220                 ret = q6asm_open_write(prtd->audio_client, FORMAT_LINEAR_PCM,
 221                                        prtd->bits_per_sample);
 222         } else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 223                 ret = q6asm_open_read(prtd->audio_client, FORMAT_LINEAR_PCM,
 224                                        prtd->bits_per_sample);
 225         }
 226
 227         if (ret < 0) {
 228                 pr_err("%s: q6asm_open_write failed\n", __func__);
 229                 q6asm_audio_client_free(prtd->audio_client);
 230                 prtd->audio_client = NULL;
 231                 return -ENOMEM;
 232         }
 233
 234         prtd->session_id = q6asm_get_session_id(prtd->audio_client);
 235         ret = q6routing_stream_open(soc_prtd->dai_link->id, LEGACY_PCM_MODE,
 236                               prtd->session_id, substream->stream);
 237         if (ret) {
 238                 pr_err("%s: stream reg failed ret:%d\n", __func__, ret);
 239                 return ret;
 240         }
 241
 242         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 243                 ret = q6asm_media_format_block_multi_ch_pcm(
 244                                 prtd->audio_client, runtime->rate,
 245                                 runtime->channels, NULL,
 246                                 prtd->bits_per_sample);
 247         } else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 248                 ret = q6asm_enc_cfg_blk_pcm_format_support(prtd->audio_client,
 249                                         runtime->rate, runtime->channels,
 250                                         prtd->bits_per_sample);
 251
 252                 /* Queue the buffers */
 253                 for (i = 0; i < runtime->periods; i++)
 254                         q6asm_read(prtd->audio_client);
 255
 256         }
 257         if (ret < 0)
 258                 pr_info("%s: CMD Format block failed\n", __func__);
 259
 260         prtd->state = Q6ASM_STREAM_RUNNING;
 261
 262         return 0;
 263 }
 264
 265 static int q6asm_dai_trigger(struct snd_pcm_substream *substream, int cmd)
 266 {
 267         int ret = 0;
 268         struct snd_pcm_runtime *runtime = substream->runtime;
 269         struct q6asm_dai_rtd *prtd = runtime->private_data;
 270
 271         switch (cmd) {
 272         case SNDRV_PCM_TRIGGER_START:
 273         case SNDRV_PCM_TRIGGER_RESUME:
 274         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 275                 ret = q6asm_run_nowait(prtd->audio_client, 0, 0, 0);
 276                 break;
 277         case SNDRV_PCM_TRIGGER_STOP:
 278                 prtd->state = Q6ASM_STREAM_STOPPED;
 279                 ret = q6asm_cmd_nowait(prtd->audio_client, CMD_EOS);
 280                 break;
 281         case SNDRV_PCM_TRIGGER_SUSPEND:
 282         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 283                 ret = q6asm_cmd_nowait(prtd->audio_client, CMD_PAUSE);
 284                 break;
 285         default:
 286                 ret = -EINVAL;
 287                 break;
 288         }
 289
 290         return ret;
 291 }
 292
 293 static int q6asm_dai_open(struct snd_pcm_substream *substream)
 294 {
 295         struct snd_pcm_runtime *runtime = substream->runtime;
 296         struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
 297         struct snd_soc_dai *cpu_dai = soc_prtd->cpu_dai;
 298         struct snd_soc_component *c = snd_soc_rtdcom_lookup(soc_prtd, DRV_NAME);
 299         struct q6asm_dai_rtd *prtd;
 300         struct q6asm_dai_data *pdata;
 301         struct device *dev = c->dev;
 302         int ret = 0;
 303         int stream_id;
 304
 305         stream_id = cpu_dai->driver->id;
 306
 307         pdata = snd_soc_component_get_drvdata(c);
 308         if (!pdata) {
 309                 pr_err("Drv data not found ..\n");
 310                 return -EINVAL;
 311         }
 312
 313         prtd = kzalloc(sizeof(struct q6asm_dai_rtd), GFP_KERNEL);
 314         if (prtd == NULL)
 315                 return -ENOMEM;
 316
 317         prtd->substream = substream;
 318         prtd->audio_client = q6asm_audio_client_alloc(dev,
 319                                 (q6asm_cb)event_handler, prtd, stream_id,
 320                                 LEGACY_PCM_MODE);
 321         if (IS_ERR(prtd->audio_client)) {
 322                 pr_info("%s: Could not allocate memory\n", __func__);
 323                 ret = PTR_ERR(prtd->audio_client);
 324                 kfree(prtd);
 325                 return ret;
 326         }
 327
 328         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 329                 runtime->hw = q6asm_dai_hardware_playback;
 330         else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
 331                 runtime->hw = q6asm_dai_hardware_capture;
 332
 333         ret = snd_pcm_hw_constraint_list(runtime, 0,
 334                                 SNDRV_PCM_HW_PARAM_RATE,
 335                                 &constraints_sample_rates);
 336         if (ret < 0)
 337                 pr_info("snd_pcm_hw_constraint_list failed\n");
 338         /* Ensure that buffer size is a multiple of period size */
 339         ret = snd_pcm_hw_constraint_integer(runtime,
 340                                             SNDRV_PCM_HW_PARAM_PERIODS);
 341         if (ret < 0)
 342                 pr_info("snd_pcm_hw_constraint_integer failed\n");
 343
 344         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 345                 ret = snd_pcm_hw_constraint_minmax(runtime,
 346                         SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
 347                         PLAYBACK_MIN_NUM_PERIODS * PLAYBACK_MIN_PERIOD_SIZE,
 348                         PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE);
 349                 if (ret < 0) {
 350                         pr_err("constraint for buffer bytes min max ret = %d\n",
 351                                                                         ret);
 352                 }
 353         }
 354
 355         ret = snd_pcm_hw_constraint_step(runtime, 0,
 356                 SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
 357         if (ret < 0) {
 358                 pr_err("constraint for period bytes step ret = %d\n",
 359                                                                 ret);
 360         }
 361         ret = snd_pcm_hw_constraint_step(runtime, 0,
 362                 SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32);
 363         if (ret < 0) {
 364                 pr_err("constraint for buffer bytes step ret = %d\n",
 365                                                                 ret);
 366         }
 367
 368         runtime->private_data = prtd;
 369
 370         snd_soc_set_runtime_hwparams(substream, &q6asm_dai_hardware_playback);
 371
 372         runtime->dma_bytes = q6asm_dai_hardware_playback.buffer_bytes_max;
 373
 374
 375         if (pdata->sid < 0)
 376                 prtd->phys = substream->dma_buffer.addr;
 377         else
 378                 prtd->phys = substream->dma_buffer.addr | (pdata->sid << 32);
 379
 380         snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
 381
 382         return 0;
 383 }
 384
 385 static int q6asm_dai_close(struct snd_pcm_substream *substream)
 386 {
 387         struct snd_pcm_runtime *runtime = substream->runtime;
 388         struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
 389         struct q6asm_dai_rtd *prtd = runtime->private_data;
 390
 391         if (prtd->audio_client) {
 392                 if (prtd->state)
 393                         q6asm_cmd(prtd->audio_client, CMD_CLOSE);
 394
 395                 q6asm_unmap_memory_regions(substream->stream,
 396                                            prtd->audio_client);
 397                 q6asm_audio_client_free(prtd->audio_client);
 398                 prtd->audio_client = NULL;
 399         }
 400         q6routing_stream_close(soc_prtd->dai_link->id,
 401                                                 substream->stream);
 402         kfree(prtd);
 403         return 0;
 404 }
 405
 406 static snd_pcm_uframes_t q6asm_dai_pointer(struct snd_pcm_substream *substream)
 407 {
 408
 409         struct snd_pcm_runtime *runtime = substream->runtime;
 410         struct q6asm_dai_rtd *prtd = runtime->private_data;
 411
 412         if (prtd->pcm_irq_pos >= prtd->pcm_size)
 413                 prtd->pcm_irq_pos = 0;
 414
 415         return bytes_to_frames(runtime, (prtd->pcm_irq_pos));
 416 }
 417
 418 static int q6asm_dai_mmap(struct snd_pcm_substream *substream,
 419                                 struct vm_area_struct *vma)
 420 {
 421
 422         struct snd_pcm_runtime *runtime = substream->runtime;
 423         struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
 424         struct snd_soc_component *c = snd_soc_rtdcom_lookup(soc_prtd, DRV_NAME);
 425         struct device *dev = c->dev;
 426
 427         return dma_mmap_coherent(dev, vma,
 428                         runtime->dma_area, runtime->dma_addr,
 429                         runtime->dma_bytes);
 430 }
 431
 432 static int q6asm_dai_hw_params(struct snd_pcm_substream *substream,
 433                                 struct snd_pcm_hw_params *params)
 434 {
 435         struct snd_pcm_runtime *runtime = substream->runtime;
 436         struct q6asm_dai_rtd *prtd = runtime->private_data;
 437
 438         prtd->pcm_size = params_buffer_bytes(params);
 439         prtd->periods = params_periods(params);
 440
 441         switch (params_format(params)) {
 442         case SNDRV_PCM_FORMAT_S16_LE:
 443                 prtd->bits_per_sample = 16;
 444                 break;
 445         case SNDRV_PCM_FORMAT_S24_LE:
 446                 prtd->bits_per_sample = 24;
 447                 break;
 448         }
 449
 450         return 0;
 451 }
 452
 453 static struct snd_pcm_ops q6asm_dai_ops = {
 454         .open           = q6asm_dai_open,
 455         .hw_params      = q6asm_dai_hw_params,
 456         .close          = q6asm_dai_close,
 457         .ioctl          = snd_pcm_lib_ioctl,
 458         .prepare        = q6asm_dai_prepare,
 459         .trigger        = q6asm_dai_trigger,
 460         .pointer        = q6asm_dai_pointer,
 461         .mmap           = q6asm_dai_mmap,
 462 };
 463
 464 static int q6asm_dai_pcm_new(struct snd_soc_pcm_runtime *rtd)
 465 {
 466         struct snd_pcm_substream *psubstream, *csubstream;
 467         struct snd_soc_component *c = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 468         struct snd_pcm *pcm = rtd->pcm;
 469         struct device *dev;
 470         int size, ret;
 471
 472         dev = c->dev;
 473         size = q6asm_dai_hardware_playback.buffer_bytes_max;
 474         psubstream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 475         if (psubstream) {
 476                 ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dev, size,
 477                                           &psubstream->dma_buffer);
 478                 if (ret) {
 479                         dev_err(dev, "Cannot allocate buffer(s)\n");
 480                         return ret;
 481                 }
 482         }
 483
 484         csubstream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 485         if (csubstream) {
 486                 ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, dev, size,
 487                                           &csubstream->dma_buffer);
 488                 if (ret) {
 489                         dev_err(dev, "Cannot allocate buffer(s)\n");
 490                         if (psubstream)
 491                                 snd_dma_free_pages(&psubstream->dma_buffer);
 492                         return ret;
 493                 }
 494         }
 495
 496         return 0;
 497 }
 498
 499 static void q6asm_dai_pcm_free(struct snd_pcm *pcm)
 500 {
 501         struct snd_pcm_substream *substream;
 502         int i;
 503
 504         for (i = 0; i < ARRAY_SIZE(pcm->streams); i++) {
 505                 substream = pcm->streams[i].substream;
 506                 if (substream) {
 507                         snd_dma_free_pages(&substream->dma_buffer);
 508                         substream->dma_buffer.area = NULL;
 509                         substream->dma_buffer.addr = 0;
 510                 }
 511         }
 512 }
 513
 514 static const struct snd_soc_dapm_route afe_pcm_routes[] = {
 515         {"MM_DL1",  NULL, "MultiMedia1 Playback" },
 516         {"MM_DL2",  NULL, "MultiMedia2 Playback" },
 517         {"MM_DL3",  NULL, "MultiMedia3 Playback" },
 518         {"MM_DL4",  NULL, "MultiMedia4 Playback" },
 519         {"MM_DL5",  NULL, "MultiMedia5 Playback" },
 520         {"MM_DL6",  NULL, "MultiMedia6 Playback" },
 521         {"MM_DL7",  NULL, "MultiMedia7 Playback" },
 522         {"MM_DL7",  NULL, "MultiMedia8 Playback" },
 523         {"MultiMedia1 Capture", NULL, "MM_UL1"},
 524         {"MultiMedia2 Capture", NULL, "MM_UL2"},
 525         {"MultiMedia3 Capture", NULL, "MM_UL3"},
 526         {"MultiMedia4 Capture", NULL, "MM_UL4"},
 527         {"MultiMedia5 Capture", NULL, "MM_UL5"},
 528         {"MultiMedia6 Capture", NULL, "MM_UL6"},
 529         {"MultiMedia7 Capture", NULL, "MM_UL7"},
 530         {"MultiMedia8 Capture", NULL, "MM_UL8"},
 531
 532 };
 533
 534 static int fe_dai_probe(struct snd_soc_dai *dai)
 535 {
 536         struct snd_soc_dapm_context *dapm;
 537
 538         dapm = snd_soc_component_get_dapm(dai->component);
 539         snd_soc_dapm_add_routes(dapm, afe_pcm_routes,
 540                                 ARRAY_SIZE(afe_pcm_routes));
 541
 542         return 0;
 543 }
 544
 545
 546 static const struct snd_soc_component_driver q6asm_fe_dai_component = {
 547         .name           = DRV_NAME,
 548         .ops            = &q6asm_dai_ops,
 549         .pcm_new        = q6asm_dai_pcm_new,
 550         .pcm_free       = q6asm_dai_pcm_free,
 551
 552 };
 553
 554 static struct snd_soc_dai_driver q6asm_fe_dais[] = {
 555         Q6ASM_FEDAI_DRIVER(1),
 556         Q6ASM_FEDAI_DRIVER(2),
 557         Q6ASM_FEDAI_DRIVER(3),
 558         Q6ASM_FEDAI_DRIVER(4),
 559         Q6ASM_FEDAI_DRIVER(5),
 560         Q6ASM_FEDAI_DRIVER(6),
 561         Q6ASM_FEDAI_DRIVER(7),
 562         Q6ASM_FEDAI_DRIVER(8),
 563 };
 564
 565 static int q6asm_dai_probe(struct platform_device *pdev)
 566 {
 567         struct device *dev = &pdev->dev;
 568         struct device_node *node = dev->of_node;
 569         struct of_phandle_args args;
 570         struct q6asm_dai_data *pdata;
 571         int rc;
 572
 573         pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 574         if (!pdata)
 575                 return -ENOMEM;
 576
 577         rc = of_parse_phandle_with_fixed_args(node, "iommus", 1, 0, &args);
 578         if (rc < 0)
 579                 pdata->sid = -1;
 580         else
 581                 pdata->sid = args.args[0] & SID_MASK_DEFAULT;
 582
 583         dev_set_drvdata(dev, pdata);
 584
 585         return devm_snd_soc_register_component(dev, &q6asm_fe_dai_component,
 586                                         q6asm_fe_dais,
 587                                         ARRAY_SIZE(q6asm_fe_dais));
 588 }
 589
 590 static const struct of_device_id q6asm_dai_device_id[] = {
 591         { .compatible = "qcom,q6asm-dais" },
 592         {},
 593 };
 594 MODULE_DEVICE_TABLE(of, q6asm_dai_device_id);
 595
 596 static struct platform_driver q6asm_dai_platform_driver = {
 597         .driver = {
 598                 .name = "q6asm-dai",
 599                 .of_match_table = of_match_ptr(q6asm_dai_device_id),
 600         },
 601         .probe = q6asm_dai_probe,
 602 };
 603 module_platform_driver(q6asm_dai_platform_driver);
 604
 605 MODULE_DESCRIPTION("Q6ASM dai driver");
 606 MODULE_LICENSE("GPL v2");