LXR linux/sound/soc/intel/boards/sof_maxim

   1// SPDX-License-Identifier: GPL-2.0-only
   2//
   3// Copyright(c) 2020 Intel Corporation. All rights reserved.
   4#include <linux/string.h>
   5#include <sound/pcm.h>
   6#include <sound/soc.h>
   7#include <sound/soc-dai.h>
   8#include <sound/soc-dapm.h>
   9#include <uapi/sound/asound.h>
  10#include "sof_maxim_common.h"
  11
  12#define MAX_98373_PIN_NAME 16
  13
  14const struct snd_soc_dapm_route max_98373_dapm_routes[] = {
  15        /* speaker */
  16        { "Left Spk", NULL, "Left BE_OUT" },
  17        { "Right Spk", NULL, "Right BE_OUT" },
  18};
  19
  20static struct snd_soc_codec_conf max_98373_codec_conf[] = {
  21        {
  22                .dlc = COMP_CODEC_CONF(MAX_98373_DEV0_NAME),
  23                .name_prefix = "Right",
  24        },
  25        {
  26                .dlc = COMP_CODEC_CONF(MAX_98373_DEV1_NAME),
  27                .name_prefix = "Left",
  28        },
  29};
  30
  31struct snd_soc_dai_link_component max_98373_components[] = {
  32        {  /* For Right */
  33                .name = MAX_98373_DEV0_NAME,
  34                .dai_name = MAX_98373_CODEC_DAI,
  35        },
  36        {  /* For Left */
  37                .name = MAX_98373_DEV1_NAME,
  38                .dai_name = MAX_98373_CODEC_DAI,
  39        },
  40};
  41
  42static int max98373_hw_params(struct snd_pcm_substream *substream,
  43                              struct snd_pcm_hw_params *params)
  44{
  45        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  46        struct snd_soc_dai *codec_dai;
  47        int j;
  48
  49        for_each_rtd_codec_dais(rtd, j, codec_dai) {
  50                if (!strcmp(codec_dai->component->name, MAX_98373_DEV0_NAME)) {
  51                        /* DEV0 tdm slot configuration */
  52                        snd_soc_dai_set_tdm_slot(codec_dai, 0x03, 3, 8, 24);
  53                }
  54                if (!strcmp(codec_dai->component->name, MAX_98373_DEV1_NAME)) {
  55                        /* DEV1 tdm slot configuration */
  56                        snd_soc_dai_set_tdm_slot(codec_dai, 0x0C, 3, 8, 24);
  57                }
  58        }
  59        return 0;
  60}
  61
  62int max98373_trigger(struct snd_pcm_substream *substream, int cmd)
  63{
  64        struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  65        struct snd_soc_dai *codec_dai;
  66        int j;
  67        int ret = 0;
  68
  69        /* set spk pin by playback only */
  70        if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
  71                return 0;
  72
  73        for_each_rtd_codec_dais(rtd, j, codec_dai) {
  74                struct snd_soc_component *component = codec_dai->component;
  75                struct snd_soc_dapm_context *dapm =
  76                                snd_soc_component_get_dapm(component);
  77                char pin_name[MAX_98373_PIN_NAME];
  78
  79                snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk",
  80                         codec_dai->component->name_prefix);
  81
  82                switch (cmd) {
  83                case SNDRV_PCM_TRIGGER_START:
  84                case SNDRV_PCM_TRIGGER_RESUME:
  85                case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
  86                        ret = snd_soc_dapm_enable_pin(dapm, pin_name);
  87                        if (!ret)
  88                                snd_soc_dapm_sync(dapm);
  89                        break;
  90                case SNDRV_PCM_TRIGGER_STOP:
  91                case SNDRV_PCM_TRIGGER_SUSPEND:
  92                case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
  93                        ret = snd_soc_dapm_disable_pin(dapm, pin_name);
  94                        if (!ret)
  95                                snd_soc_dapm_sync(dapm);
  96                        break;
  97                default:
  98                        break;
  99                }
 100        }
 101
 102        return ret;
 103}
 104
 105struct snd_soc_ops max_98373_ops = {
 106        .hw_params = max98373_hw_params,
 107        .trigger = max98373_trigger,
 108};
 109
 110int max98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd)
 111{
 112        struct snd_soc_card *card = rtd->card;
 113        int ret;
 114
 115        ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes,
 116                                      ARRAY_SIZE(max_98373_dapm_routes));
 117        if (ret)
 118                dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
 119        return ret;
 120}
 121
 122void sof_max98373_codec_conf(struct snd_soc_card *card)
 123{
 124        card->codec_conf = max_98373_codec_conf;
 125        card->num_configs = ARRAY_SIZE(max_98373_codec_conf);
 126}
 127