Quelle  acp5x-mach.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0+
/*
 * Machine driver for AMD Vangogh platform using either
 * NAU8821 & CS35L41 or NAU8821 & MAX98388 codecs.
 *
 * Copyright 2021 Advanced Micro Devices, Inc.
 */

#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/input-event-codes.h>
#include <linux/module.h>
#include <sound/jack.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include "../../codecs/nau8821.h"
#include "acp5x.h"

#define DRV_NAME   "acp5x_mach"
#define DUAL_CHANNEL   2
#define ACP5X_NAU8821_BCLK  3072000
#define ACP5X_NAU8821_FREQ_OUT  12288000
#define ACP5X_NAU8821_COMP_NAME  "i2c-NVTN2020:00"
#define ACP5X_NAU8821_DAI_NAME  "nau8821-hifi"
#define ACP5X_CS35L41_COMP_LNAME "spi-VLV1776:00"
#define ACP5X_CS35L41_COMP_RNAME "spi-VLV1776:01"
#define ACP5X_CS35L41_DAI_NAME  "cs35l41-pcm"
#define ACP5X_MAX98388_COMP_LNAME "i2c-ADS8388:00"
#define ACP5X_MAX98388_COMP_RNAME "i2c-ADS8388:01"
#define ACP5X_MAX98388_DAI_NAME  "max98388-aif1"

static struct snd_soc_jack vg_headset;

SND_SOC_DAILINK_DEF(platform,  DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0")));
SND_SOC_DAILINK_DEF(acp5x_i2s, DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0")));
SND_SOC_DAILINK_DEF(acp5x_bt,  DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1")));
SND_SOC_DAILINK_DEF(nau8821,   DAILINK_COMP_ARRAY(COMP_CODEC(ACP5X_NAU8821_COMP_NAME,
            ACP5X_NAU8821_DAI_NAME)));

static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = {
 {
  .pin = "Headphone",
  .mask = SND_JACK_HEADPHONE,
 },
 {
  .pin = "Headset Mic",
  .mask = SND_JACK_MICROPHONE,
 },
};

static const struct snd_kcontrol_new acp5x_8821_controls[] = {
 SOC_DAPM_PIN_SWITCH("Headphone"),
 SOC_DAPM_PIN_SWITCH("Headset Mic"),
 SOC_DAPM_PIN_SWITCH("Int Mic"),
};

static int platform_clock_control(struct snd_soc_dapm_widget *w,
      struct snd_kcontrol *k, int event)
{
 struct snd_soc_dapm_context *dapm = w->dapm;
 struct snd_soc_card *card = dapm->card;
 struct snd_soc_dai *dai;
 int ret = 0;

 dai = snd_soc_card_get_codec_dai(card, ACP5X_NAU8821_DAI_NAME);
 if (!dai) {
  dev_err(card->dev, "Codec dai not found\n");
  return -EIO;
 }

 if (SND_SOC_DAPM_EVENT_OFF(event)) {
  ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
  if (ret < 0) {
   dev_err(card->dev, "set sysclk err = %d\n", ret);
   return -EIO;
  }
 } else {
  ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_FLL_BLK, 0, SND_SOC_CLOCK_IN);
  if (ret < 0)
   dev_err(dai->dev, "can't set BLK clock %d\n", ret);
  ret = snd_soc_dai_set_pll(dai, 0, 0, ACP5X_NAU8821_BCLK, ACP5X_NAU8821_FREQ_OUT);
  if (ret < 0)
   dev_err(dai->dev, "can't set FLL: %d\n", ret);
 }

 return ret;
}

static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd)
{
 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
 int ret;

 /*
 * Headset buttons map to the google Reference headset.
 * These can be configured by userspace.
 */
 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
      SND_JACK_HEADSET | SND_JACK_BTN_0,
      &vg_headset, acp5x_nau8821_jack_pins,
      ARRAY_SIZE(acp5x_nau8821_jack_pins));
 if (ret) {
  dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
  return ret;
 }

 snd_jack_set_key(vg_headset.jack, SND_JACK_BTN_0, KEY_MEDIA);
 nau8821_enable_jack_detect(component, &vg_headset);

 return ret;
}

static const unsigned int rates[] = {
 48000,
};

static const struct snd_pcm_hw_constraint_list constraints_rates = {
 .count = ARRAY_SIZE(rates),
 .list  = rates,
 .mask = 0,
};

static const unsigned int channels[] = {
 2,
};

static const struct snd_pcm_hw_constraint_list constraints_channels = {
 .count = ARRAY_SIZE(channels),
 .list = channels,
 .mask = 0,
};

static const unsigned int acp5x_nau8821_format[] = {32};

static struct snd_pcm_hw_constraint_list constraints_sample_bits = {
 .list = acp5x_nau8821_format,
 .count = ARRAY_SIZE(acp5x_nau8821_format),
};

static int acp5x_8821_startup(struct snd_pcm_substream *substream)
{
 struct snd_pcm_runtime *runtime = substream->runtime;
 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(rtd->card);

 machine->play_i2s_instance = I2S_SP_INSTANCE;
 machine->cap_i2s_instance = I2S_SP_INSTANCE;

 runtime->hw.channels_max = DUAL_CHANNEL;
 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
       &constraints_channels);
 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
       &constraints_rates);
 snd_pcm_hw_constraint_list(substream->runtime, 0,
       SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
       &constraints_sample_bits);

 return 0;
}

static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream,
       struct snd_pcm_hw_params *params)
{
 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 struct snd_soc_card *card = rtd->card;
 struct snd_soc_dai *dai = snd_soc_card_get_codec_dai(card, ACP5X_NAU8821_DAI_NAME);
 int ret, bclk;

 if (!dai)
  return -EINVAL;

 ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_FLL_BLK, 0, SND_SOC_CLOCK_IN);
 if (ret < 0)
  dev_err(card->dev, "can't set FS clock %d\n", ret);

 bclk = snd_soc_params_to_bclk(params);
 if (bclk < 0) {
  dev_err(dai->dev, "Fail to get BCLK rate: %d\n", bclk);
  return bclk;
 }

 ret = snd_soc_dai_set_pll(dai, 0, 0, bclk, params_rate(params) * 256);
 if (ret < 0)
  dev_err(card->dev, "can't set FLL: %d\n", ret);

 return ret;
}

static const struct snd_soc_ops acp5x_8821_ops = {
 .startup = acp5x_8821_startup,
 .hw_params = acp5x_nau8821_hw_params,
};

static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream)
{
 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(rtd->card);
 struct snd_pcm_runtime *runtime = substream->runtime;

 machine->play_i2s_instance = I2S_HS_INSTANCE;

 runtime->hw.channels_max = DUAL_CHANNEL;
 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
       &constraints_channels);
 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
       &constraints_rates);

 return 0;
}

static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream,
       struct snd_pcm_hw_params *params)
{
 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 unsigned int bclk, rate = params_rate(params);
 struct snd_soc_component *comp;
 int ret, i;

 switch (rate) {
 case 48000:
  bclk = 1536000;
  break;
 default:
  bclk = 0;
  break;
 }

 for_each_rtd_components(rtd, i, comp) {
  if (!(strcmp(comp->name, ACP5X_CS35L41_COMP_LNAME)) ||
      !(strcmp(comp->name, ACP5X_CS35L41_COMP_RNAME))) {
   if (!bclk) {
    dev_err(comp->dev, "Invalid sample rate: 0x%x\n", rate);
    return -EINVAL;
   }

   ret = snd_soc_component_set_sysclk(comp, 0, 0, bclk, SND_SOC_CLOCK_IN);
   if (ret) {
    dev_err(comp->dev, "failed to set SYSCLK: %d\n", ret);
    return ret;
   }
  }
 }

 return 0;
}

static const struct snd_soc_ops acp5x_cs35l41_play_ops = {
 .startup = acp5x_cs35l41_startup,
 .hw_params = acp5x_cs35l41_hw_params,
};

static struct snd_soc_codec_conf acp5x_cs35l41_conf[] = {
 {
  .dlc = COMP_CODEC_CONF(ACP5X_CS35L41_COMP_LNAME),
  .name_prefix = "Left",
 },
 {
  .dlc = COMP_CODEC_CONF(ACP5X_CS35L41_COMP_RNAME),
  .name_prefix = "Right",
 },
};

SND_SOC_DAILINK_DEF(cs35l41, DAILINK_COMP_ARRAY(COMP_CODEC(ACP5X_CS35L41_COMP_LNAME,
          ACP5X_CS35L41_DAI_NAME),
      COMP_CODEC(ACP5X_CS35L41_COMP_RNAME,
          ACP5X_CS35L41_DAI_NAME)));

static struct snd_soc_dai_link acp5x_8821_35l41_dai[] = {
 {
  .name = "acp5x-8821-play",
  .stream_name = "Playback/Capture",
  .dai_fmt = SND_SOC_DAIFMT_I2S |
      SND_SOC_DAIFMT_NB_NF |
      SND_SOC_DAIFMT_CBC_CFC,
  .ops = &acp5x_8821_ops,
  .init = acp5x_8821_init,
  SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform),
 },
 {
  .name = "acp5x-CS35L41-Stereo",
  .stream_name = "CS35L41 Stereo Playback",
  .dai_fmt = SND_SOC_DAIFMT_I2S |
      SND_SOC_DAIFMT_NB_NF |
      SND_SOC_DAIFMT_CBC_CFC,
  .playback_only = 1,
  .ops = &acp5x_cs35l41_play_ops,
  SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform),
 },
};

static const struct snd_soc_dapm_widget acp5x_8821_35l41_widgets[] = {
 SND_SOC_DAPM_HP("Headphone", NULL),
 SND_SOC_DAPM_MIC("Headset Mic", NULL),
 SND_SOC_DAPM_MIC("Int Mic", NULL),
 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
       platform_clock_control,
       SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
};

static const struct snd_soc_dapm_route acp5x_8821_35l41_audio_route[] = {
 /* HP jack connectors - unknown if we have jack detection */
 { "Headphone", NULL, "HPOL" },
 { "Headphone", NULL, "HPOR" },
 { "MICL", NULL, "Headset Mic" },
 { "MICR", NULL, "Headset Mic" },
 { "DMIC", NULL, "Int Mic" },

 { "Headphone", NULL, "Platform Clock" },
 { "Headset Mic", NULL, "Platform Clock" },
 { "Int Mic", NULL, "Platform Clock" },
};

static struct snd_soc_card acp5x_8821_35l41_card = {
 .name = "acp5x",
 .owner = THIS_MODULE,
 .dai_link = acp5x_8821_35l41_dai,
 .num_links = ARRAY_SIZE(acp5x_8821_35l41_dai),
 .dapm_widgets = acp5x_8821_35l41_widgets,
 .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_35l41_widgets),
 .dapm_routes = acp5x_8821_35l41_audio_route,
 .num_dapm_routes = ARRAY_SIZE(acp5x_8821_35l41_audio_route),
 .codec_conf = acp5x_cs35l41_conf,
 .num_configs = ARRAY_SIZE(acp5x_cs35l41_conf),
 .controls = acp5x_8821_controls,
 .num_controls = ARRAY_SIZE(acp5x_8821_controls),
};

static int acp5x_max98388_startup(struct snd_pcm_substream *substream)
{
 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(rtd->card);
 struct snd_pcm_runtime *runtime = substream->runtime;

 machine->play_i2s_instance = I2S_HS_INSTANCE;

 runtime->hw.channels_max = DUAL_CHANNEL;
 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
       &constraints_channels);
 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
       &constraints_rates);
 return 0;
}

static const struct snd_soc_ops acp5x_max98388_play_ops = {
 .startup = acp5x_max98388_startup,
};

static struct snd_soc_codec_conf acp5x_max98388_conf[] = {
 {
  .dlc = COMP_CODEC_CONF(ACP5X_MAX98388_COMP_LNAME),
  .name_prefix = "Left",
 },
 {
  .dlc = COMP_CODEC_CONF(ACP5X_MAX98388_COMP_RNAME),
  .name_prefix = "Right",
 },
};

SND_SOC_DAILINK_DEF(max98388, DAILINK_COMP_ARRAY(COMP_CODEC(ACP5X_MAX98388_COMP_LNAME,
           ACP5X_MAX98388_DAI_NAME),
       COMP_CODEC(ACP5X_MAX98388_COMP_RNAME,
           ACP5X_MAX98388_DAI_NAME)));

static struct snd_soc_dai_link acp5x_8821_98388_dai[] = {
 {
  .name = "acp5x-8821-play",
  .stream_name = "Playback/Capture",
  .dai_fmt = SND_SOC_DAIFMT_I2S |
      SND_SOC_DAIFMT_NB_NF |
      SND_SOC_DAIFMT_CBC_CFC,
  .ops = &acp5x_8821_ops,
  .init = acp5x_8821_init,
  SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform),
 },
 {
  .name = "acp5x-max98388-play",
  .stream_name = "MAX98388 Playback",
  .dai_fmt = SND_SOC_DAIFMT_I2S |
      SND_SOC_DAIFMT_NB_NF |
      SND_SOC_DAIFMT_CBC_CFC,
  .playback_only = 1,
  .ops = &acp5x_max98388_play_ops,
  SND_SOC_DAILINK_REG(acp5x_bt, max98388, platform),
 },
};

static const struct snd_soc_dapm_widget acp5x_8821_98388_widgets[] = {
 SND_SOC_DAPM_HP("Headphone", NULL),
 SND_SOC_DAPM_MIC("Headset Mic", NULL),
 SND_SOC_DAPM_MIC("Int Mic", NULL),
 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
       platform_clock_control,
       SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 SND_SOC_DAPM_SPK("SPK", NULL),
};

static const struct snd_soc_dapm_route acp5x_8821_98388_route[] = {
 { "Headphone", NULL, "HPOL" },
 { "Headphone", NULL, "HPOR" },
 { "MICL", NULL, "Headset Mic" },
 { "MICR", NULL, "Headset Mic" },
 { "DMIC", NULL, "Int Mic" },

 { "Headphone", NULL, "Platform Clock" },
 { "Headset Mic", NULL, "Platform Clock" },
 { "Int Mic", NULL, "Platform Clock" },

 { "SPK", NULL, "Left BE_OUT" },
 { "SPK", NULL, "Right BE_OUT" },
};

static struct snd_soc_card acp5x_8821_98388_card = {
 .name = "acp5x-max98388",
 .owner = THIS_MODULE,
 .dai_link = acp5x_8821_98388_dai,
 .num_links = ARRAY_SIZE(acp5x_8821_98388_dai),
 .dapm_widgets = acp5x_8821_98388_widgets,
 .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_98388_widgets),
 .dapm_routes = acp5x_8821_98388_route,
 .num_dapm_routes = ARRAY_SIZE(acp5x_8821_98388_route),
 .codec_conf = acp5x_max98388_conf,
 .num_configs = ARRAY_SIZE(acp5x_max98388_conf),
 .controls = acp5x_8821_controls,
 .num_controls = ARRAY_SIZE(acp5x_8821_controls),
};

static const struct dmi_system_id acp5x_vg_quirk_table[] = {
 {
  .matches = {
   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"),
   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
  },
  .driver_data = (void *)&acp5x_8821_35l41_card,
 },
 {
  .matches = {
   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"),
   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galileo"),
  },
  .driver_data = (void *)&acp5x_8821_98388_card,
 },
 {}
};

static int acp5x_probe(struct platform_device *pdev)
{
 const struct dmi_system_id *dmi_id;
 struct acp5x_platform_info *machine;
 struct device *dev = &pdev->dev;
 struct snd_soc_card *card;
 int ret;

 dmi_id = dmi_first_match(acp5x_vg_quirk_table);
 if (!dmi_id || !dmi_id->driver_data)
  return -ENODEV;

 machine = devm_kzalloc(dev, sizeof(*machine), GFP_KERNEL);
 if (!machine)
  return -ENOMEM;

 card = dmi_id->driver_data;
 card->dev = dev;
 platform_set_drvdata(pdev, card);
 snd_soc_card_set_drvdata(card, machine);

 ret = devm_snd_soc_register_card(dev, card);
 if (ret)
  return dev_err_probe(dev, ret, "Register card (%s) failed\n", card->name);

 return 0;
}

static struct platform_driver acp5x_mach_driver = {
 .driver = {
  .name = DRV_NAME,
  .pm = &snd_soc_pm_ops,
 },
 .probe = acp5x_probe,
};

module_platform_driver(acp5x_mach_driver);

MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
MODULE_DESCRIPTION("NAU8821/CS35L41 & NAU8821/MAX98388 audio support");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);