text: // SPDX-License-Identifier: GPL-2.0-only
  // Copyright(c) 2019 Intel Corporation.
  
  /*
   * Intel SOF Machine driver for DA7219 + MAX98373/MAX98360A codec
   */
  
  #include <linux/input.h>
  #include <linux/module.h>
  #include <sound/pcm.h>
  #include <sound/pcm_params.h>
  #include <linux/platform_device.h>
  #include <sound/soc.h>
  #include <sound/soc-acpi.h>
  #include "../../codecs/da7219.h"
  #include "../../codecs/da7219-aad.h"
  #include "hda_dsp_common.h"
  
  #define DIALOG_CODEC_DAI	"da7219-hifi"
  #define MAX98373_CODEC_DAI	"max98373-aif1"
  #define MAXIM_DEV0_NAME		"i2c-MX98373:00"
  #define MAXIM_DEV1_NAME		"i2c-MX98373:01"
  
  struct hdmi_pcm {
  	struct list_head head;
  	struct snd_soc_dai *codec_dai;
  	int device;
  };
  
  struct card_private {
  	struct snd_soc_jack headset;
  	struct list_head hdmi_pcm_list;
  	struct snd_soc_jack hdmi[3];
  };
  
  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 *codec_dai;
  	int ret = 0;
  
  	codec_dai = snd_soc_card_get_codec_dai(card, DIALOG_CODEC_DAI);
  	if (!codec_dai) {
  		dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n");
  		return -EIO;
  	}
  
  	if (SND_SOC_DAPM_EVENT_OFF(event)) {
  		ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK,
  					  0, 0);
  		if (ret)
  			dev_err(card->dev, "failed to stop PLL: %d\n", ret);
  	} else if (SND_SOC_DAPM_EVENT_ON(event)) {
  		ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM,
  					  0, DA7219_PLL_FREQ_OUT_98304);
  		if (ret)
  			dev_err(card->dev, "failed to start PLL: %d\n", ret);
  	}
  
  	return ret;
  }
  
  static const struct snd_kcontrol_new controls[] = {
  	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
  	SOC_DAPM_PIN_SWITCH("Headset Mic"),
  	SOC_DAPM_PIN_SWITCH("Left Spk"),
  	SOC_DAPM_PIN_SWITCH("Right Spk"),
  };
  
  static const struct snd_kcontrol_new m98360a_controls[] = {
  	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
  	SOC_DAPM_PIN_SWITCH("Headset Mic"),
  	SOC_DAPM_PIN_SWITCH("Spk"),
  };
  
  /* For MAX98373 amp */
  static const struct snd_soc_dapm_widget widgets[] = {
  	SND_SOC_DAPM_HP("Headphone Jack", NULL),
  	SND_SOC_DAPM_MIC("Headset Mic", NULL),
  
  	SND_SOC_DAPM_SPK("Left Spk", NULL),
  	SND_SOC_DAPM_SPK("Right Spk", NULL),
  
  	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
  			    platform_clock_control, SND_SOC_DAPM_POST_PMD |
  			    SND_SOC_DAPM_PRE_PMU),
  
  	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
  };
  
  static const struct snd_soc_dapm_route audio_map[] = {
  	{ "Headphone Jack", NULL, "HPL" },
  	{ "Headphone Jack", NULL, "HPR" },
  
  	{ "MIC", NULL, "Headset Mic" },
  
  	{ "Headphone Jack", NULL, "Platform Clock" },
  	{ "Headset Mic", NULL, "Platform Clock" },
  
  	{ "Left Spk", NULL, "Left BE_OUT" },
  	{ "Right Spk", NULL, "Right BE_OUT" },
  
  	/* digital mics */
  	{"DMic", NULL, "SoC DMIC"},
  };
  
  /* For MAX98360A amp */
  static const struct snd_soc_dapm_widget max98360a_widgets[] = {
  	SND_SOC_DAPM_HP("Headphone Jack", NULL),
  	SND_SOC_DAPM_MIC("Headset Mic", NULL),
  
  	SND_SOC_DAPM_SPK("Spk", NULL),
  
  	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
  			    platform_clock_control, SND_SOC_DAPM_POST_PMD |
  			    SND_SOC_DAPM_PRE_PMU),
  
  	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
  };
  
  static const struct snd_soc_dapm_route max98360a_map[] = {
  	{ "Headphone Jack", NULL, "HPL" },
  	{ "Headphone Jack", NULL, "HPR" },
  
  	{ "MIC", NULL, "Headset Mic" },
  
  	{ "Headphone Jack", NULL, "Platform Clock" },
  	{ "Headset Mic", NULL, "Platform Clock" },
  
  	{"Spk", NULL, "Speaker"},
  
  	/* digital mics */
  	{"DMic", NULL, "SoC DMIC"},
  };
  
  static struct snd_soc_jack headset;
  
  static int da7219_codec_init(struct snd_soc_pcm_runtime *rtd)
  {
  	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  	struct snd_soc_component *component = codec_dai->component;
  	struct snd_soc_jack *jack;
  	int ret;
  
  	/* Configure sysclk for codec */
  	ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, 24000000,
  				     SND_SOC_CLOCK_IN);
  	if (ret) {
  		dev_err(rtd->dev, "can't set codec sysclk configuration\n");
  		return ret;
  	}
  
  	/*
  	 * Headset buttons map to the google Reference headset.
  	 * These can be configured by userspace.
  	 */
  	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
  				    SND_JACK_HEADSET | SND_JACK_BTN_0 |
  				    SND_JACK_BTN_1 | SND_JACK_BTN_2 |
  				    SND_JACK_BTN_3 | SND_JACK_LINEOUT,
  				    &headset, NULL, 0);
  	if (ret) {
  		dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
  		return ret;
  	}
  
  	jack = &headset;
  	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
  	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
  	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
  	da7219_aad_jack_det(component, jack);
  
  	return ret;
  }
  
  static int ssp1_hw_params(struct snd_pcm_substream *substream,
  			      struct snd_pcm_hw_params *params)
  {
  	struct snd_soc_pcm_runtime *runtime = asoc_substream_to_rtd(substream);
  	int ret, j;
  
  	for (j = 0; j < runtime->num_codecs; j++) {
  		struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, j);
  
  		if (!strcmp(codec_dai->component->name, MAXIM_DEV0_NAME)) {
  			/* vmon_slot_no = 0 imon_slot_no = 1 for TX slots */
  			ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 3, 4, 16);
  			if (ret < 0) {
  				dev_err(runtime->dev, "DEV0 TDM slot err:%d\n", ret);
  				return ret;
  			}
  		}
  		if (!strcmp(codec_dai->component->name, MAXIM_DEV1_NAME)) {
  			/* vmon_slot_no = 2 imon_slot_no = 3 for TX slots */
  			ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xC, 3, 4, 16);
  			if (ret < 0) {
  				dev_err(runtime->dev, "DEV1 TDM slot err:%d\n", ret);
  				return ret;
  			}
  		}
  	}
  
  	return 0;
  }
  
  static struct snd_soc_ops ssp1_ops = {
  	.hw_params = ssp1_hw_params,
  };
  
  static struct snd_soc_codec_conf max98373_codec_conf[] = {
  	{
  		.dlc = COMP_CODEC_CONF(MAXIM_DEV0_NAME),
  		.name_prefix = "Right",
  	},
  	{
  		.dlc = COMP_CODEC_CONF(MAXIM_DEV1_NAME),
  		.name_prefix = "Left",
  	},
  };
  
  static int hdmi_init(struct snd_soc_pcm_runtime *rtd)
  {
  	struct card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
  	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
  	struct hdmi_pcm *pcm;
  
  	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
  	if (!pcm)
  		return -ENOMEM;
  
  	pcm->device = dai->id;
  	pcm->codec_dai = dai;
  
  	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
  
  	return 0;
  }
  
  static int card_late_probe(struct snd_soc_card *card)
  {
  	struct card_private *ctx = snd_soc_card_get_drvdata(card);
  	struct snd_soc_acpi_mach *mach = (card->dev)->platform_data;
  	struct hdmi_pcm *pcm;
  
  	if (mach->mach_params.common_hdmi_codec_drv) {
  		pcm = list_first_entry(&ctx->hdmi_pcm_list, struct hdmi_pcm,
  				       head);
  		return hda_dsp_hdmi_build_controls(card,
  						   pcm->codec_dai->component);
  	}
  
  	return -EINVAL;
  }
  
  SND_SOC_DAILINK_DEF(ssp0_pin,
  	DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
  SND_SOC_DAILINK_DEF(ssp0_codec,
  	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7219:00", DIALOG_CODEC_DAI)));
  
  SND_SOC_DAILINK_DEF(ssp1_pin,
  	DAILINK_COMP_ARRAY(COMP_CPU("SSP1 Pin")));
  SND_SOC_DAILINK_DEF(ssp1_amps,
  	DAILINK_COMP_ARRAY(
  	/* Left */	COMP_CODEC(MAXIM_DEV0_NAME, MAX98373_CODEC_DAI),
  	/* Right */	COMP_CODEC(MAXIM_DEV1_NAME, MAX98373_CODEC_DAI)));
  
  SND_SOC_DAILINK_DEF(ssp1_m98360a,
  	DAILINK_COMP_ARRAY(COMP_CODEC("MX98360A:00", "HiFi")));
  
  SND_SOC_DAILINK_DEF(dmic_pin,
  	DAILINK_COMP_ARRAY(COMP_CPU("DMIC01 Pin")));
  SND_SOC_DAILINK_DEF(dmic_codec,
  	DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
  
  SND_SOC_DAILINK_DEF(dmic16k_pin,
  	DAILINK_COMP_ARRAY(COMP_CPU("DMIC16k Pin")));
  
  SND_SOC_DAILINK_DEF(idisp1_pin,
  	DAILINK_COMP_ARRAY(COMP_CPU("iDisp1 Pin")));
  SND_SOC_DAILINK_DEF(idisp1_codec,
  	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi1")));
  
  SND_SOC_DAILINK_DEF(idisp2_pin,
  	DAILINK_COMP_ARRAY(COMP_CPU("iDisp2 Pin")));
  SND_SOC_DAILINK_DEF(idisp2_codec,
  	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi2")));
  
  SND_SOC_DAILINK_DEF(idisp3_pin,
  	DAILINK_COMP_ARRAY(COMP_CPU("iDisp3 Pin")));
  SND_SOC_DAILINK_DEF(idisp3_codec,
  	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi3")));
  
  SND_SOC_DAILINK_DEF(platform, /* subject to be overridden during probe */
  	DAILINK_COMP_ARRAY(COMP_PLATFORM("0000:00:1f.3")));
  
  static struct snd_soc_dai_link dais[] = {
  	/* Back End DAI links */
  	{
  		.name = "SSP1-Codec",
  		.id = 0,
  		.ignore_pmdown_time = 1,
  		.no_pcm = 1,
  		.dpcm_playback = 1,
  		.dpcm_capture = 1, /* IV feedback */
  		.ops = &ssp1_ops,
  		SND_SOC_DAILINK_REG(ssp1_pin, ssp1_amps, platform),
  	},
  	{
  		.name = "SSP0-Codec",
  		.id = 1,
  		.no_pcm = 1,
  		.init = da7219_codec_init,
  		.ignore_pmdown_time = 1,
  		.dpcm_playback = 1,
  		.dpcm_capture = 1,
  		SND_SOC_DAILINK_REG(ssp0_pin, ssp0_codec, platform),
  	},
  	{
  		.name = "dmic01",
  		.id = 2,
  		.ignore_suspend = 1,
  		.dpcm_capture = 1,
  		.no_pcm = 1,
  		SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform),
  	},
  	{
  		.name = "iDisp1",
  		.id = 3,
  		.init = hdmi_init,
  		.dpcm_playback = 1,
  		.no_pcm = 1,
  		SND_SOC_DAILINK_REG(idisp1_pin, idisp1_codec, platform),
  	},
  	{
  		.name = "iDisp2",
  		.id = 4,
  		.init = hdmi_init,
  		.dpcm_playback = 1,
  		.no_pcm = 1,
  		SND_SOC_DAILINK_REG(idisp2_pin, idisp2_codec, platform),
  	},
  	{
  		.name = "iDisp3",
  		.id = 5,
  		.init = hdmi_init,
  		.dpcm_playback = 1,
  		.no_pcm = 1,
  		SND_SOC_DAILINK_REG(idisp3_pin, idisp3_codec, platform),
  	},
  	{
  		.name = "dmic16k",
  		.id = 6,
  		.ignore_suspend = 1,
  		.dpcm_capture = 1,
  		.no_pcm = 1,
  		SND_SOC_DAILINK_REG(dmic16k_pin, dmic_codec, platform),
  	}
  };
  
  static struct snd_soc_card card_da7219_m98373 = {
  	.name = "da7219max",
  	.owner = THIS_MODULE,
  	.dai_link = dais,
  	.num_links = ARRAY_SIZE(dais),
  	.controls = controls,
  	.num_controls = ARRAY_SIZE(controls),
  	.dapm_widgets = widgets,
  	.num_dapm_widgets = ARRAY_SIZE(widgets),
  	.dapm_routes = audio_map,
  	.num_dapm_routes = ARRAY_SIZE(audio_map),
  	.codec_conf = max98373_codec_conf,
  	.num_configs = ARRAY_SIZE(max98373_codec_conf),
  	.fully_routed = true,
  	.late_probe = card_late_probe,
  };
  
  static struct snd_soc_card card_da7219_m98360a = {
  	.name = "da7219max98360a",
  	.owner = THIS_MODULE,
  	.dai_link = dais,
  	.num_links = ARRAY_SIZE(dais),
  	.controls = m98360a_controls,
  	.num_controls = ARRAY_SIZE(m98360a_controls),
  	.dapm_widgets = max98360a_widgets,
  	.num_dapm_widgets = ARRAY_SIZE(max98360a_widgets),
  	.dapm_routes = max98360a_map,
  	.num_dapm_routes = ARRAY_SIZE(max98360a_map),
  	.fully_routed = true,
  	.late_probe = card_late_probe,
  };
  
  static int audio_probe(struct platform_device *pdev)
  {
  	static struct snd_soc_card *card;
  	struct snd_soc_acpi_mach *mach;
  	struct card_private *ctx;
  	int ret;
  
  	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
  	if (!ctx)
  		return -ENOMEM;
  
  	/* By default dais[0] is configured for max98373 */
  	if (!strcmp(pdev->name, "sof_da7219_mx98360a")) {
  		dais[0] = (struct snd_soc_dai_link) {
  			.name = "SSP1-Codec",
  			.id = 0,
  			.no_pcm = 1,
  			.dpcm_playback = 1,
  			.ignore_pmdown_time = 1,
  			SND_SOC_DAILINK_REG(ssp1_pin, ssp1_m98360a, platform) };
  	}
  
  	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
  	card = (struct snd_soc_card *)pdev->id_entry->driver_data;
  	card->dev = &pdev->dev;
  
  	mach = pdev->dev.platform_data;
  	ret = snd_soc_fixup_dai_links_platform_name(card,
  						    mach->mach_params.platform);
  	if (ret)
  		return ret;
  
  	snd_soc_card_set_drvdata(card, ctx);
  
  	return devm_snd_soc_register_card(&pdev->dev, card);
  }
  
  static const struct platform_device_id board_ids[] = {
  	{
  		.name = "sof_da7219_mx98373",
  		.driver_data = (kernel_ulong_t)&card_da7219_m98373,
  	},
  	{
  		.name = "sof_da7219_mx98360a",
  		.driver_data = (kernel_ulong_t)&card_da7219_m98360a,
  	},
  	{ }
  };
  MODULE_DEVICE_TABLE(platform, board_ids);
  
  static struct platform_driver audio = {
  	.probe = audio_probe,
  	.driver = {
  		.name = "sof_da7219_max98_360a_373",
  		.pm = &snd_soc_pm_ops,
  	},
  	.id_table = board_ids,
  };
  module_platform_driver(audio)
  
  /* Module information */
  MODULE_DESCRIPTION("ASoC Intel(R) SOF Machine driver");
  MODULE_AUTHOR("Yong Zhi <yong.zhi@intel.com>");
  MODULE_LICENSE("GPL v2");
  MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);
  