linux/sound/soc/soc-dai.c
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   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// soc-dai.c
   4//
   5// Copyright (C) 2019 Renesas Electronics Corp.
   6// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   7//
   8
   9#include <sound/soc.h>
  10#include <sound/soc-dai.h>
  11#include <sound/soc-link.h>
  12
  13#define soc_dai_ret(dai, ret) _soc_dai_ret(dai, __func__, ret)
  14static inline int _soc_dai_ret(struct snd_soc_dai *dai,
  15                               const char *func, int ret)
  16{
  17        /* Positive, Zero values are not errors */
  18        if (ret >= 0)
  19                return ret;
  20
  21        /* Negative values might be errors */
  22        switch (ret) {
  23        case -EPROBE_DEFER:
  24        case -ENOTSUPP:
  25                break;
  26        default:
  27                dev_err(dai->dev,
  28                        "ASoC: error at %s on %s: %d\n",
  29                        func, dai->name, ret);
  30        }
  31
  32        return ret;
  33}
  34
  35/*
  36 * We might want to check substream by using list.
  37 * In such case, we can update these macros.
  38 */
  39#define soc_dai_mark_push(dai, substream, tgt)  ((dai)->mark_##tgt = substream)
  40#define soc_dai_mark_pop(dai, substream, tgt)   ((dai)->mark_##tgt = NULL)
  41#define soc_dai_mark_match(dai, substream, tgt) ((dai)->mark_##tgt == substream)
  42
  43/**
  44 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
  45 * @dai: DAI
  46 * @clk_id: DAI specific clock ID
  47 * @freq: new clock frequency in Hz
  48 * @dir: new clock direction - input/output.
  49 *
  50 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
  51 */
  52int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
  53                           unsigned int freq, int dir)
  54{
  55        int ret;
  56
  57        if (dai->driver->ops &&
  58            dai->driver->ops->set_sysclk)
  59                ret = dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
  60        else
  61                ret = snd_soc_component_set_sysclk(dai->component, clk_id, 0,
  62                                                   freq, dir);
  63
  64        return soc_dai_ret(dai, ret);
  65}
  66EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
  67
  68/**
  69 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
  70 * @dai: DAI
  71 * @div_id: DAI specific clock divider ID
  72 * @div: new clock divisor.
  73 *
  74 * Configures the clock dividers. This is used to derive the best DAI bit and
  75 * frame clocks from the system or master clock. It's best to set the DAI bit
  76 * and frame clocks as low as possible to save system power.
  77 */
  78int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
  79                           int div_id, int div)
  80{
  81        int ret = -EINVAL;
  82
  83        if (dai->driver->ops &&
  84            dai->driver->ops->set_clkdiv)
  85                ret = dai->driver->ops->set_clkdiv(dai, div_id, div);
  86
  87        return soc_dai_ret(dai, ret);
  88}
  89EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
  90
  91/**
  92 * snd_soc_dai_set_pll - configure DAI PLL.
  93 * @dai: DAI
  94 * @pll_id: DAI specific PLL ID
  95 * @source: DAI specific source for the PLL
  96 * @freq_in: PLL input clock frequency in Hz
  97 * @freq_out: requested PLL output clock frequency in Hz
  98 *
  99 * Configures and enables PLL to generate output clock based on input clock.
 100 */
 101int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
 102                        unsigned int freq_in, unsigned int freq_out)
 103{
 104        int ret;
 105
 106        if (dai->driver->ops &&
 107            dai->driver->ops->set_pll)
 108                ret = dai->driver->ops->set_pll(dai, pll_id, source,
 109                                                freq_in, freq_out);
 110        else
 111                ret = snd_soc_component_set_pll(dai->component, pll_id, source,
 112                                                freq_in, freq_out);
 113
 114        return soc_dai_ret(dai, ret);
 115}
 116EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
 117
 118/**
 119 * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
 120 * @dai: DAI
 121 * @ratio: Ratio of BCLK to Sample rate.
 122 *
 123 * Configures the DAI for a preset BCLK to sample rate ratio.
 124 */
 125int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
 126{
 127        int ret = -EINVAL;
 128
 129        if (dai->driver->ops &&
 130            dai->driver->ops->set_bclk_ratio)
 131                ret = dai->driver->ops->set_bclk_ratio(dai, ratio);
 132
 133        return soc_dai_ret(dai, ret);
 134}
 135EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
 136
 137int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd)
 138{
 139        struct snd_soc_dai *dai;
 140        int i, max = 0;
 141
 142        /*
 143         * return max num if *ALL* DAIs have .auto_selectable_formats
 144         */
 145        for_each_rtd_dais(rtd, i, dai) {
 146                if (dai->driver->ops &&
 147                    dai->driver->ops->num_auto_selectable_formats)
 148                        max = max(max, dai->driver->ops->num_auto_selectable_formats);
 149                else
 150                        return 0;
 151        }
 152
 153        return max;
 154}
 155
 156/**
 157 * snd_soc_dai_get_fmt - get supported audio format.
 158 * @dai: DAI
 159 * @priority: priority level of supported audio format.
 160 *
 161 * This should return only formats implemented with high
 162 * quality by the DAI so that the core can configure a
 163 * format which will work well with other devices.
 164 * For example devices which don't support both edges of the
 165 * LRCLK signal in I2S style formats should only list DSP
 166 * modes.  This will mean that sometimes fewer formats
 167 * are reported here than are supported by set_fmt().
 168 */
 169u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority)
 170{
 171        const struct snd_soc_dai_ops *ops = dai->driver->ops;
 172        u64 fmt = 0;
 173        int i, max = 0, until = priority;
 174
 175        /*
 176         * Collect auto_selectable_formats until priority
 177         *
 178         * ex)
 179         *      auto_selectable_formats[] = { A, B, C };
 180         *      (A, B, C = SND_SOC_POSSIBLE_DAIFMT_xxx)
 181         *
 182         * priority = 1 :       A
 183         * priority = 2 :       A | B
 184         * priority = 3 :       A | B | C
 185         * priority = 4 :       A | B | C
 186         * ...
 187         */
 188        if (ops)
 189                max = ops->num_auto_selectable_formats;
 190
 191        if (max < until)
 192                until = max;
 193
 194        for (i = 0; i < until; i++)
 195                fmt |= ops->auto_selectable_formats[i];
 196
 197        return fmt;
 198}
 199
 200/**
 201 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
 202 * @dai: DAI
 203 * @fmt: SND_SOC_DAIFMT_* format value.
 204 *
 205 * Configures the DAI hardware format and clocking.
 206 */
 207int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 208{
 209        int ret = -ENOTSUPP;
 210
 211        if (dai->driver->ops &&
 212            dai->driver->ops->set_fmt)
 213                ret = dai->driver->ops->set_fmt(dai, fmt);
 214
 215        return soc_dai_ret(dai, ret);
 216}
 217EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
 218
 219/**
 220 * snd_soc_xlate_tdm_slot_mask - generate tx/rx slot mask.
 221 * @slots: Number of slots in use.
 222 * @tx_mask: bitmask representing active TX slots.
 223 * @rx_mask: bitmask representing active RX slots.
 224 *
 225 * Generates the TDM tx and rx slot default masks for DAI.
 226 */
 227static int snd_soc_xlate_tdm_slot_mask(unsigned int slots,
 228                                       unsigned int *tx_mask,
 229                                       unsigned int *rx_mask)
 230{
 231        if (*tx_mask || *rx_mask)
 232                return 0;
 233
 234        if (!slots)
 235                return -EINVAL;
 236
 237        *tx_mask = (1 << slots) - 1;
 238        *rx_mask = (1 << slots) - 1;
 239
 240        return 0;
 241}
 242
 243/**
 244 * snd_soc_dai_set_tdm_slot() - Configures a DAI for TDM operation
 245 * @dai: The DAI to configure
 246 * @tx_mask: bitmask representing active TX slots.
 247 * @rx_mask: bitmask representing active RX slots.
 248 * @slots: Number of slots in use.
 249 * @slot_width: Width in bits for each slot.
 250 *
 251 * This function configures the specified DAI for TDM operation. @slot contains
 252 * the total number of slots of the TDM stream and @slot_with the width of each
 253 * slot in bit clock cycles. @tx_mask and @rx_mask are bitmasks specifying the
 254 * active slots of the TDM stream for the specified DAI, i.e. which slots the
 255 * DAI should write to or read from. If a bit is set the corresponding slot is
 256 * active, if a bit is cleared the corresponding slot is inactive. Bit 0 maps to
 257 * the first slot, bit 1 to the second slot and so on. The first active slot
 258 * maps to the first channel of the DAI, the second active slot to the second
 259 * channel and so on.
 260 *
 261 * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask,
 262 * @rx_mask and @slot_width will be ignored.
 263 *
 264 * Returns 0 on success, a negative error code otherwise.
 265 */
 266int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
 267                             unsigned int tx_mask, unsigned int rx_mask,
 268                             int slots, int slot_width)
 269{
 270        int ret = -ENOTSUPP;
 271
 272        if (dai->driver->ops &&
 273            dai->driver->ops->xlate_tdm_slot_mask)
 274                dai->driver->ops->xlate_tdm_slot_mask(slots,
 275                                                      &tx_mask, &rx_mask);
 276        else
 277                snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask);
 278
 279        dai->tx_mask = tx_mask;
 280        dai->rx_mask = rx_mask;
 281
 282        if (dai->driver->ops &&
 283            dai->driver->ops->set_tdm_slot)
 284                ret = dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
 285                                                      slots, slot_width);
 286        return soc_dai_ret(dai, ret);
 287}
 288EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
 289
 290/**
 291 * snd_soc_dai_set_channel_map - configure DAI audio channel map
 292 * @dai: DAI
 293 * @tx_num: how many TX channels
 294 * @tx_slot: pointer to an array which imply the TX slot number channel
 295 *           0~num-1 uses
 296 * @rx_num: how many RX channels
 297 * @rx_slot: pointer to an array which imply the RX slot number channel
 298 *           0~num-1 uses
 299 *
 300 * configure the relationship between channel number and TDM slot number.
 301 */
 302int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
 303                                unsigned int tx_num, unsigned int *tx_slot,
 304                                unsigned int rx_num, unsigned int *rx_slot)
 305{
 306        int ret = -ENOTSUPP;
 307
 308        if (dai->driver->ops &&
 309            dai->driver->ops->set_channel_map)
 310                ret = dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
 311                                                        rx_num, rx_slot);
 312        return soc_dai_ret(dai, ret);
 313}
 314EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
 315
 316/**
 317 * snd_soc_dai_get_channel_map - Get DAI audio channel map
 318 * @dai: DAI
 319 * @tx_num: how many TX channels
 320 * @tx_slot: pointer to an array which imply the TX slot number channel
 321 *           0~num-1 uses
 322 * @rx_num: how many RX channels
 323 * @rx_slot: pointer to an array which imply the RX slot number channel
 324 *           0~num-1 uses
 325 */
 326int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
 327                                unsigned int *tx_num, unsigned int *tx_slot,
 328                                unsigned int *rx_num, unsigned int *rx_slot)
 329{
 330        int ret = -ENOTSUPP;
 331
 332        if (dai->driver->ops &&
 333            dai->driver->ops->get_channel_map)
 334                ret = dai->driver->ops->get_channel_map(dai, tx_num, tx_slot,
 335                                                        rx_num, rx_slot);
 336        return soc_dai_ret(dai, ret);
 337}
 338EXPORT_SYMBOL_GPL(snd_soc_dai_get_channel_map);
 339
 340/**
 341 * snd_soc_dai_set_tristate - configure DAI system or master clock.
 342 * @dai: DAI
 343 * @tristate: tristate enable
 344 *
 345 * Tristates the DAI so that others can use it.
 346 */
 347int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
 348{
 349        int ret = -EINVAL;
 350
 351        if (dai->driver->ops &&
 352            dai->driver->ops->set_tristate)
 353                ret = dai->driver->ops->set_tristate(dai, tristate);
 354
 355        return soc_dai_ret(dai, ret);
 356}
 357EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
 358
 359/**
 360 * snd_soc_dai_digital_mute - configure DAI system or master clock.
 361 * @dai: DAI
 362 * @mute: mute enable
 363 * @direction: stream to mute
 364 *
 365 * Mutes the DAI DAC.
 366 */
 367int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
 368                             int direction)
 369{
 370        int ret = -ENOTSUPP;
 371
 372        /*
 373         * ignore if direction was CAPTURE
 374         * and it had .no_capture_mute flag
 375         */
 376        if (dai->driver->ops &&
 377            dai->driver->ops->mute_stream &&
 378            (direction == SNDRV_PCM_STREAM_PLAYBACK ||
 379             !dai->driver->ops->no_capture_mute))
 380                ret = dai->driver->ops->mute_stream(dai, mute, direction);
 381
 382        return soc_dai_ret(dai, ret);
 383}
 384EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
 385
 386int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
 387                          struct snd_pcm_substream *substream,
 388                          struct snd_pcm_hw_params *params)
 389{
 390        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 391        int ret = 0;
 392
 393        if (dai->driver->ops &&
 394            dai->driver->ops->hw_params) {
 395                /* perform any topology hw_params fixups before DAI  */
 396                ret = snd_soc_link_be_hw_params_fixup(rtd, params);
 397                if (ret < 0)
 398                        goto end;
 399
 400                ret = dai->driver->ops->hw_params(substream, params, dai);
 401        }
 402
 403        /* mark substream if succeeded */
 404        if (ret == 0)
 405                soc_dai_mark_push(dai, substream, hw_params);
 406end:
 407        return soc_dai_ret(dai, ret);
 408}
 409
 410void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
 411                         struct snd_pcm_substream *substream,
 412                         int rollback)
 413{
 414        if (rollback && !soc_dai_mark_match(dai, substream, hw_params))
 415                return;
 416
 417        if (dai->driver->ops &&
 418            dai->driver->ops->hw_free)
 419                dai->driver->ops->hw_free(substream, dai);
 420
 421        /* remove marked substream */
 422        soc_dai_mark_pop(dai, substream, hw_params);
 423}
 424
 425int snd_soc_dai_startup(struct snd_soc_dai *dai,
 426                        struct snd_pcm_substream *substream)
 427{
 428        int ret = 0;
 429
 430        if (dai->driver->ops &&
 431            dai->driver->ops->startup)
 432                ret = dai->driver->ops->startup(substream, dai);
 433
 434        /* mark substream if succeeded */
 435        if (ret == 0)
 436                soc_dai_mark_push(dai, substream, startup);
 437
 438        return soc_dai_ret(dai, ret);
 439}
 440
 441void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
 442                          struct snd_pcm_substream *substream,
 443                          int rollback)
 444{
 445        if (rollback && !soc_dai_mark_match(dai, substream, startup))
 446                return;
 447
 448        if (dai->driver->ops &&
 449            dai->driver->ops->shutdown)
 450                dai->driver->ops->shutdown(substream, dai);
 451
 452        /* remove marked substream */
 453        soc_dai_mark_pop(dai, substream, startup);
 454}
 455
 456int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
 457                             struct snd_soc_pcm_runtime *rtd, int num)
 458{
 459        int ret = -ENOTSUPP;
 460        if (dai->driver->compress_new)
 461                ret = dai->driver->compress_new(rtd, num);
 462        return soc_dai_ret(dai, ret);
 463}
 464
 465/*
 466 * snd_soc_dai_stream_valid() - check if a DAI supports the given stream
 467 *
 468 * Returns true if the DAI supports the indicated stream type.
 469 */
 470bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int dir)
 471{
 472        struct snd_soc_pcm_stream *stream = snd_soc_dai_get_pcm_stream(dai, dir);
 473
 474        /* If the codec specifies any channels at all, it supports the stream */
 475        return stream->channels_min;
 476}
 477
 478/*
 479 * snd_soc_dai_link_set_capabilities() - set dai_link properties based on its DAIs
 480 */
 481void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link)
 482{
 483        bool supported[SNDRV_PCM_STREAM_LAST + 1];
 484        int direction;
 485
 486        for_each_pcm_streams(direction) {
 487                struct snd_soc_dai_link_component *cpu;
 488                struct snd_soc_dai_link_component *codec;
 489                struct snd_soc_dai *dai;
 490                bool supported_cpu = false;
 491                bool supported_codec = false;
 492                int i;
 493
 494                for_each_link_cpus(dai_link, i, cpu) {
 495                        dai = snd_soc_find_dai_with_mutex(cpu);
 496                        if (dai && snd_soc_dai_stream_valid(dai, direction)) {
 497                                supported_cpu = true;
 498                                break;
 499                        }
 500                }
 501                for_each_link_codecs(dai_link, i, codec) {
 502                        dai = snd_soc_find_dai_with_mutex(codec);
 503                        if (dai && snd_soc_dai_stream_valid(dai, direction)) {
 504                                supported_codec = true;
 505                                break;
 506                        }
 507                }
 508                supported[direction] = supported_cpu && supported_codec;
 509        }
 510
 511        dai_link->dpcm_playback = supported[SNDRV_PCM_STREAM_PLAYBACK];
 512        dai_link->dpcm_capture  = supported[SNDRV_PCM_STREAM_CAPTURE];
 513}
 514EXPORT_SYMBOL_GPL(snd_soc_dai_link_set_capabilities);
 515
 516void snd_soc_dai_action(struct snd_soc_dai *dai,
 517                        int stream, int action)
 518{
 519        /* see snd_soc_dai_stream_active() */
 520        dai->stream_active[stream]      += action;
 521
 522        /* see snd_soc_component_active() */
 523        dai->component->active          += action;
 524}
 525EXPORT_SYMBOL_GPL(snd_soc_dai_action);
 526
 527int snd_soc_dai_active(struct snd_soc_dai *dai)
 528{
 529        int stream, active;
 530
 531        active = 0;
 532        for_each_pcm_streams(stream)
 533                active += dai->stream_active[stream];
 534
 535        return active;
 536}
 537EXPORT_SYMBOL_GPL(snd_soc_dai_active);
 538
 539int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order)
 540{
 541        struct snd_soc_dai *dai;
 542        int i;
 543
 544        for_each_rtd_dais(rtd, i, dai) {
 545                if (dai->driver->probe_order != order)
 546                        continue;
 547
 548                if (dai->driver->probe) {
 549                        int ret = dai->driver->probe(dai);
 550
 551                        if (ret < 0)
 552                                return soc_dai_ret(dai, ret);
 553                }
 554
 555                dai->probed = 1;
 556        }
 557
 558        return 0;
 559}
 560
 561int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order)
 562{
 563        struct snd_soc_dai *dai;
 564        int i, r, ret = 0;
 565
 566        for_each_rtd_dais(rtd, i, dai) {
 567                if (dai->driver->remove_order != order)
 568                        continue;
 569
 570                if (dai->probed &&
 571                    dai->driver->remove) {
 572                        r = dai->driver->remove(dai);
 573                        if (r < 0)
 574                                ret = r; /* use last error */
 575                }
 576
 577                dai->probed = 0;
 578        }
 579
 580        return ret;
 581}
 582
 583int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd)
 584{
 585        struct snd_soc_dai *dai;
 586        int i;
 587
 588        for_each_rtd_dais(rtd, i, dai) {
 589                if (dai->driver->pcm_new) {
 590                        int ret = dai->driver->pcm_new(rtd, dai);
 591                        if (ret < 0)
 592                                return soc_dai_ret(dai, ret);
 593                }
 594        }
 595
 596        return 0;
 597}
 598
 599int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
 600{
 601        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 602        struct snd_soc_dai *dai;
 603        int i, ret;
 604
 605        for_each_rtd_dais(rtd, i, dai) {
 606                if (dai->driver->ops &&
 607                    dai->driver->ops->prepare) {
 608                        ret = dai->driver->ops->prepare(substream, dai);
 609                        if (ret < 0)
 610                                return soc_dai_ret(dai, ret);
 611                }
 612        }
 613
 614        return 0;
 615}
 616
 617static int soc_dai_trigger(struct snd_soc_dai *dai,
 618                           struct snd_pcm_substream *substream, int cmd)
 619{
 620        int ret = 0;
 621
 622        if (dai->driver->ops &&
 623            dai->driver->ops->trigger)
 624                ret = dai->driver->ops->trigger(substream, cmd, dai);
 625
 626        return soc_dai_ret(dai, ret);
 627}
 628
 629int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
 630                            int cmd, int rollback)
 631{
 632        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 633        struct snd_soc_dai *dai;
 634        int i, r, ret = 0;
 635
 636        switch (cmd) {
 637        case SNDRV_PCM_TRIGGER_START:
 638        case SNDRV_PCM_TRIGGER_RESUME:
 639        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 640                for_each_rtd_dais(rtd, i, dai) {
 641                        ret = soc_dai_trigger(dai, substream, cmd);
 642                        if (ret < 0)
 643                                break;
 644                        soc_dai_mark_push(dai, substream, trigger);
 645                }
 646                break;
 647        case SNDRV_PCM_TRIGGER_STOP:
 648        case SNDRV_PCM_TRIGGER_SUSPEND:
 649        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 650                for_each_rtd_dais(rtd, i, dai) {
 651                        if (rollback && !soc_dai_mark_match(dai, substream, trigger))
 652                                continue;
 653
 654                        r = soc_dai_trigger(dai, substream, cmd);
 655                        if (r < 0)
 656                                ret = r; /* use last ret */
 657                        soc_dai_mark_pop(dai, substream, trigger);
 658                }
 659        }
 660
 661        return ret;
 662}
 663
 664int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
 665                                    int cmd)
 666{
 667        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 668        struct snd_soc_dai *dai;
 669        int i, ret;
 670
 671        for_each_rtd_dais(rtd, i, dai) {
 672                if (dai->driver->ops &&
 673                    dai->driver->ops->bespoke_trigger) {
 674                        ret = dai->driver->ops->bespoke_trigger(substream,
 675                                                                cmd, dai);
 676                        if (ret < 0)
 677                                return soc_dai_ret(dai, ret);
 678                }
 679        }
 680
 681        return 0;
 682}
 683
 684void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
 685                           snd_pcm_sframes_t *cpu_delay,
 686                           snd_pcm_sframes_t *codec_delay)
 687{
 688        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 689        struct snd_soc_dai *dai;
 690        int i;
 691
 692        /*
 693         * We're looking for the delay through the full audio path so it needs to
 694         * be the maximum of the DAIs doing transmit and the maximum of the DAIs
 695         * doing receive (ie, all CPUs and all CODECs) rather than just the maximum
 696         * of all DAIs.
 697         */
 698
 699        /* for CPU */
 700        for_each_rtd_cpu_dais(rtd, i, dai)
 701                if (dai->driver->ops &&
 702                    dai->driver->ops->delay)
 703                        *cpu_delay = max(*cpu_delay, dai->driver->ops->delay(substream, dai));
 704
 705        /* for Codec */
 706        for_each_rtd_codec_dais(rtd, i, dai)
 707                if (dai->driver->ops &&
 708                    dai->driver->ops->delay)
 709                        *codec_delay = max(*codec_delay, dai->driver->ops->delay(substream, dai));
 710}
 711
 712int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
 713                              struct snd_compr_stream *cstream)
 714{
 715        int ret = 0;
 716
 717        if (dai->driver->cops &&
 718            dai->driver->cops->startup)
 719                ret = dai->driver->cops->startup(cstream, dai);
 720
 721        /* mark cstream if succeeded */
 722        if (ret == 0)
 723                soc_dai_mark_push(dai, cstream, compr_startup);
 724
 725        return soc_dai_ret(dai, ret);
 726}
 727EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup);
 728
 729void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
 730                                struct snd_compr_stream *cstream,
 731                                int rollback)
 732{
 733        if (rollback && !soc_dai_mark_match(dai, cstream, compr_startup))
 734                return;
 735
 736        if (dai->driver->cops &&
 737            dai->driver->cops->shutdown)
 738                dai->driver->cops->shutdown(cstream, dai);
 739
 740        /* remove marked cstream */
 741        soc_dai_mark_pop(dai, cstream, compr_startup);
 742}
 743EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown);
 744
 745int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
 746                              struct snd_compr_stream *cstream, int cmd)
 747{
 748        int ret = 0;
 749
 750        if (dai->driver->cops &&
 751            dai->driver->cops->trigger)
 752                ret = dai->driver->cops->trigger(cstream, cmd, dai);
 753
 754        return soc_dai_ret(dai, ret);
 755}
 756EXPORT_SYMBOL_GPL(snd_soc_dai_compr_trigger);
 757
 758int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
 759                                 struct snd_compr_stream *cstream,
 760                                 struct snd_compr_params *params)
 761{
 762        int ret = 0;
 763
 764        if (dai->driver->cops &&
 765            dai->driver->cops->set_params)
 766                ret = dai->driver->cops->set_params(cstream, params, dai);
 767
 768        return soc_dai_ret(dai, ret);
 769}
 770EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_params);
 771
 772int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
 773                                 struct snd_compr_stream *cstream,
 774                                 struct snd_codec *params)
 775{
 776        int ret = 0;
 777
 778        if (dai->driver->cops &&
 779            dai->driver->cops->get_params)
 780                ret = dai->driver->cops->get_params(cstream, params, dai);
 781
 782        return soc_dai_ret(dai, ret);
 783}
 784EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_params);
 785
 786int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
 787                          struct snd_compr_stream *cstream,
 788                          size_t bytes)
 789{
 790        int ret = 0;
 791
 792        if (dai->driver->cops &&
 793            dai->driver->cops->ack)
 794                ret = dai->driver->cops->ack(cstream, bytes, dai);
 795
 796        return soc_dai_ret(dai, ret);
 797}
 798EXPORT_SYMBOL_GPL(snd_soc_dai_compr_ack);
 799
 800int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
 801                              struct snd_compr_stream *cstream,
 802                              struct snd_compr_tstamp *tstamp)
 803{
 804        int ret = 0;
 805
 806        if (dai->driver->cops &&
 807            dai->driver->cops->pointer)
 808                ret = dai->driver->cops->pointer(cstream, tstamp, dai);
 809
 810        return soc_dai_ret(dai, ret);
 811}
 812EXPORT_SYMBOL_GPL(snd_soc_dai_compr_pointer);
 813
 814int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
 815                                   struct snd_compr_stream *cstream,
 816                                   struct snd_compr_metadata *metadata)
 817{
 818        int ret = 0;
 819
 820        if (dai->driver->cops &&
 821            dai->driver->cops->set_metadata)
 822                ret = dai->driver->cops->set_metadata(cstream, metadata, dai);
 823
 824        return soc_dai_ret(dai, ret);
 825}
 826EXPORT_SYMBOL_GPL(snd_soc_dai_compr_set_metadata);
 827
 828int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
 829                                   struct snd_compr_stream *cstream,
 830                                   struct snd_compr_metadata *metadata)
 831{
 832        int ret = 0;
 833
 834        if (dai->driver->cops &&
 835            dai->driver->cops->get_metadata)
 836                ret = dai->driver->cops->get_metadata(cstream, metadata, dai);
 837
 838        return soc_dai_ret(dai, ret);
 839}
 840EXPORT_SYMBOL_GPL(snd_soc_dai_compr_get_metadata);
 841