text: // SPDX-License-Identifier: GPL-2.0-only
  //
  // Copyright(c) 2020 Intel Corporation. All rights reserved.
  #include <linux/string.h>
  #include <sound/pcm.h>
  #include <sound/soc.h>
  #include <sound/soc-dai.h>
  #include <sound/soc-dapm.h>
  #include <uapi/sound/asound.h>
  #include "sof_maxim_common.h"
  
  #define MAX_98373_PIN_NAME 16
  
  const struct snd_soc_dapm_route max_98373_dapm_routes[] = {
  	/* speaker */
  	{ "Left Spk", NULL, "Left BE_OUT" },
  	{ "Right Spk", NULL, "Right BE_OUT" },
  };
  
  static struct snd_soc_codec_conf max_98373_codec_conf[] = {
  	{
  		.dlc = COMP_CODEC_CONF(MAX_98373_DEV0_NAME),
  		.name_prefix = "Right",
  	},
  	{
  		.dlc = COMP_CODEC_CONF(MAX_98373_DEV1_NAME),
  		.name_prefix = "Left",
  	},
  };
  
  struct snd_soc_dai_link_component max_98373_components[] = {
  	{  /* For Right */
  		.name = MAX_98373_DEV0_NAME,
  		.dai_name = MAX_98373_CODEC_DAI,
  	},
  	{  /* For Left */
  		.name = MAX_98373_DEV1_NAME,
  		.dai_name = MAX_98373_CODEC_DAI,
  	},
  };
  
  static int max98373_hw_params(struct snd_pcm_substream *substream,
  			      struct snd_pcm_hw_params *params)
  {
  	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  	struct snd_soc_dai *codec_dai;
  	int j;
  
  	for_each_rtd_codec_dais(rtd, j, codec_dai) {
  		if (!strcmp(codec_dai->component->name, MAX_98373_DEV0_NAME)) {
  			/* DEV0 tdm slot configuration */
  			snd_soc_dai_set_tdm_slot(codec_dai, 0x03, 3, 8, 24);
  		}
  		if (!strcmp(codec_dai->component->name, MAX_98373_DEV1_NAME)) {
  			/* DEV1 tdm slot configuration */
  			snd_soc_dai_set_tdm_slot(codec_dai, 0x0C, 3, 8, 24);
  		}
  	}
  	return 0;
  }
  
  int max98373_trigger(struct snd_pcm_substream *substream, int cmd)
  {
  	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  	struct snd_soc_dai *codec_dai;
  	int j;
  	int ret = 0;
  
  	/* set spk pin by playback only */
  	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
  		return 0;
  
  	for_each_rtd_codec_dais(rtd, j, codec_dai) {
  		struct snd_soc_component *component = codec_dai->component;
  		struct snd_soc_dapm_context *dapm =
  				snd_soc_component_get_dapm(component);
  		char pin_name[MAX_98373_PIN_NAME];
  
  		snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk",
  			 codec_dai->component->name_prefix);
  
  		switch (cmd) {
  		case SNDRV_PCM_TRIGGER_START:
  		case SNDRV_PCM_TRIGGER_RESUME:
  		case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
  			ret = snd_soc_dapm_enable_pin(dapm, pin_name);
  			if (!ret)
  				snd_soc_dapm_sync(dapm);
  			break;
  		case SNDRV_PCM_TRIGGER_STOP:
  		case SNDRV_PCM_TRIGGER_SUSPEND:
  		case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
  			ret = snd_soc_dapm_disable_pin(dapm, pin_name);
  			if (!ret)
  				snd_soc_dapm_sync(dapm);
  			break;
  		default:
  			break;
  		}
  	}
  
  	return ret;
  }
  
  struct snd_soc_ops max_98373_ops = {
  	.hw_params = max98373_hw_params,
  	.trigger = max98373_trigger,
  };
  
  int max98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd)
  {
  	struct snd_soc_card *card = rtd->card;
  	int ret;
  
  	ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes,
  				      ARRAY_SIZE(max_98373_dapm_routes));
  	if (ret)
  		dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
  	return ret;
  }
  
  void sof_max98373_codec_conf(struct snd_soc_card *card)
  {
  	card->codec_conf = max_98373_codec_conf;
  	card->num_configs = ARRAY_SIZE(max_98373_codec_conf);
  }
  