Quelle  soc_sdw_cs42l43.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
// Based on sof_sdw_rt5682.c
// This file incorporates work covered by the following copyright notice:
// Copyright (c) 2023 Intel Corporation
// Copyright (c) 2024 Advanced Micro Devices, Inc.

/*
 *  soc_sdw_cs42l43 - Helpers to handle CS42L43 from generic machine driver
 */
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <sound/jack.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_type.h>
#include <sound/cs42l43.h>
#include <sound/control.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include <sound/soc_sdw_utils.h>

#define CS42L43_SPK_VOLUME_0DB 128 /* 0dB Max */

static const struct snd_soc_dapm_route cs42l43_hs_map[] = {
 { "Headphone", NULL, "cs42l43 AMP3_OUT" },
 { "Headphone", NULL, "cs42l43 AMP4_OUT" },
 { "cs42l43 ADC1_IN1_P", NULL, "Headset Mic" },
 { "cs42l43 ADC1_IN1_N", NULL, "Headset Mic" },
};

static const struct snd_soc_dapm_route cs42l43_spk_map[] = {
 { "Speaker", NULL, "cs42l43 AMP1_OUT_P", },
 { "Speaker", NULL, "cs42l43 AMP1_OUT_N", },
 { "Speaker", NULL, "cs42l43 AMP2_OUT_P", },
 { "Speaker", NULL, "cs42l43 AMP2_OUT_N", },
};

static const struct snd_soc_dapm_route cs42l43_dmic_map[] = {
 { "cs42l43 PDM1_DIN", NULL, "DMIC" },
 { "cs42l43 PDM2_DIN", NULL, "DMIC" },
};

static struct snd_soc_jack_pin soc_jack_pins[] = {
 {
  .pin    = "Headphone",
  .mask   = SND_JACK_HEADPHONE,
 },
 {
  .pin    = "Headset Mic",
  .mask   = SND_JACK_MICROPHONE,
 },
};

int asoc_sdw_cs42l43_hs_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
{
 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 struct snd_soc_jack *jack = &ctx->sdw_headset;
 struct snd_soc_card *card = rtd->card;
 int ret;

 card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s hs:cs42l43",
       card->components);
 if (!card->components)
  return -ENOMEM;

 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_hs_map,
          ARRAY_SIZE(cs42l43_hs_map));
 if (ret) {
  dev_err(card->dev, "cs42l43 hs map addition failed: %d\n", ret);
  return ret;
 }

 ret = snd_soc_card_jack_new_pins(card, "Jack",
      SND_JACK_MECHANICAL | SND_JACK_AVOUT |
      SND_JACK_HEADSET | SND_JACK_LINEOUT |
      SND_JACK_BTN_0 | SND_JACK_BTN_1 |
      SND_JACK_BTN_2 | SND_JACK_BTN_3,
      jack, soc_jack_pins,
      ARRAY_SIZE(soc_jack_pins));
 if (ret) {
  dev_err(card->dev, "Failed to create jack: %d\n", ret);
  return ret;
 }

 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);

 ret = snd_soc_component_set_jack(component, jack, NULL);
 if (ret) {
  dev_err(card->dev, "Failed to register jack: %d\n", ret);
  return ret;
 }

 ret = snd_soc_component_set_sysclk(component, CS42L43_SYSCLK, CS42L43_SYSCLK_SDW,
        0, SND_SOC_CLOCK_IN);
 if (ret)
  dev_err(card->dev, "Failed to set sysclk: %d\n", ret);

 return ret;
}
EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_hs_rtd_init, "SND_SOC_SDW_UTILS");

int asoc_sdw_cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
{
 struct snd_soc_card *card = rtd->card;
 struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
 int ret;

 if (!(ctx->mc_quirk & SOC_SDW_SIDECAR_AMPS)) {
  /* Will be set by the bridge code in this case */
  card->components = devm_kasprintf(card->dev, GFP_KERNEL,
        "%s spk:cs42l43-spk",
        card->components);
  if (!card->components)
   return -ENOMEM;
 }

 ret = snd_soc_limit_volume(card, "cs42l43 Speaker Digital Volume",
       CS42L43_SPK_VOLUME_0DB);
 if (ret)
  dev_err(card->dev, "cs42l43 speaker volume limit failed: %d\n", ret);
 else
  dev_info(card->dev, "Setting CS42L43 Speaker volume limit to %d\n",
    CS42L43_SPK_VOLUME_0DB);

 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_spk_map,
          ARRAY_SIZE(cs42l43_spk_map));
 if (ret)
  dev_err(card->dev, "cs42l43 speaker map addition failed: %d\n", ret);

 return ret;
}
EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_spk_rtd_init, "SND_SOC_SDW_UTILS");

int asoc_sdw_cs42l43_spk_init(struct snd_soc_card *card,
         struct snd_soc_dai_link *dai_links,
         struct asoc_sdw_codec_info *info,
         bool playback)
{
 /* Do init on playback link only. */
 if (!playback)
  return 0;

 info->amp_num++;

 return asoc_sdw_bridge_cs35l56_spk_init(card, dai_links, info, playback);
}
EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_spk_init, "SND_SOC_SDW_UTILS");

int asoc_sdw_cs42l43_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
{
 struct snd_soc_card *card = rtd->card;
 int ret;

 card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s mic:cs42l43-dmic",
       card->components);
 if (!card->components)
  return -ENOMEM;

 ret = snd_soc_dapm_add_routes(&card->dapm, cs42l43_dmic_map,
          ARRAY_SIZE(cs42l43_dmic_map));
 if (ret)
  dev_err(card->dev, "cs42l43 dmic map addition failed: %d\n", ret);

 return ret;
}
EXPORT_SYMBOL_NS(asoc_sdw_cs42l43_dmic_rtd_init, "SND_SOC_SDW_UTILS");