sound/soc/mediatek/mt8173-max98090.c - kernel/msm-4.19 - Gitiles

 /*
  * mt8173-max98090.c  --  MT8173 MAX98090 ALSA SoC machine driver
  *
  * Copyright (c) 2015 MediaTek Inc.
  * Author: Koro Chen <koro.chen@mediatek.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */

 #include <linux/module.h>
 #include <sound/soc.h>
 #include <sound/jack.h>
 #include <linux/gpio.h>
 #include "../codecs/max98090.h"

 static struct snd_soc_jack mt8173_max98090_jack;

 static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
 	{
 		.pin	= "Headphone",
 		.mask	= SND_JACK_HEADPHONE,
 	},
 	{
 		.pin	= "Headset Mic",
 		.mask	= SND_JACK_MICROPHONE,
 	},
 };

 static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
 	SND_SOC_DAPM_SPK("Speaker", NULL),
 	SND_SOC_DAPM_MIC("Int Mic", NULL),
 	SND_SOC_DAPM_HP("Headphone", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 };

 static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
 	{"Speaker", NULL, "SPKL"},
 	{"Speaker", NULL, "SPKR"},
 	{"DMICL", NULL, "Int Mic"},
 	{"Headphone", NULL, "HPL"},
 	{"Headphone", NULL, "HPR"},
 	{"Headset Mic", NULL, "MICBIAS"},
 	{"IN34", NULL, "Headset Mic"},
 };

 static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Speaker"),
 	SOC_DAPM_PIN_SWITCH("Int Mic"),
 	SOC_DAPM_PIN_SWITCH("Headphone"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 };

 static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
 				     struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;

 	return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
 				      SND_SOC_CLOCK_IN);
 }

 static struct snd_soc_ops mt8173_max98090_ops = {
 	.hw_params = mt8173_max98090_hw_params,
 };

 static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
 {
 	int ret;
 	struct snd_soc_card *card = runtime->card;
 	struct snd_soc_codec *codec = runtime->codec;

 	/* enable jack detection */
 	ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
 				    &mt8173_max98090_jack, NULL, 0);
 	if (ret) {
 		dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_jack_add_pins(&mt8173_max98090_jack,
 				    ARRAY_SIZE(mt8173_max98090_jack_pins),
 				    mt8173_max98090_jack_pins);
 	if (ret) {
 		dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret);
 		return ret;
 	}

 	return max98090_mic_detect(codec, &mt8173_max98090_jack);
 }

 /* Digital audio interface glue - connects codec <---> CPU */
 static struct snd_soc_dai_link mt8173_max98090_dais[] = {
 	/* Front End DAI links */
 	{
 		.name = "MAX98090 Playback",
 		.stream_name = "MAX98090 Playback",
 		.cpu_dai_name = "DL1",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dynamic = 1,
 		.dpcm_playback = 1,
 	},
 	{
 		.name = "MAX98090 Capture",
 		.stream_name = "MAX98090 Capture",
 		.cpu_dai_name = "VUL",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dynamic = 1,
 		.dpcm_capture = 1,
 	},
 	/* Back End DAI links */
 	{
 		.name = "Codec",
 		.cpu_dai_name = "I2S",
 		.no_pcm = 1,
 		.codec_dai_name = "HiFi",
 		.init = mt8173_max98090_init,
 		.ops = &mt8173_max98090_ops,
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 			   SND_SOC_DAIFMT_CBS_CFS,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 	},
 };

 static struct snd_soc_card mt8173_max98090_card = {
 	.name = "mt8173-max98090",
 	.dai_link = mt8173_max98090_dais,
 	.num_links = ARRAY_SIZE(mt8173_max98090_dais),
 	.controls = mt8173_max98090_controls,
 	.num_controls = ARRAY_SIZE(mt8173_max98090_controls),
 	.dapm_widgets = mt8173_max98090_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
 	.dapm_routes = mt8173_max98090_routes,
 	.num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
 };

 static int mt8173_max98090_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt8173_max98090_card;
 	struct device_node *codec_node, *platform_node;
 	int ret, i;

 	platform_node = of_parse_phandle(pdev->dev.of_node,
 					 "mediatek,platform", 0);
 	if (!platform_node) {
 		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 		return -EINVAL;
 	}
 	for (i = 0; i < card->num_links; i++) {
 		if (mt8173_max98090_dais[i].platform_name)
 			continue;
 		mt8173_max98090_dais[i].platform_of_node = platform_node;
 	}

 	codec_node = of_parse_phandle(pdev->dev.of_node,
 				      "mediatek,audio-codec", 0);
 	if (!codec_node) {
 		dev_err(&pdev->dev,
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
 	for (i = 0; i < card->num_links; i++) {
 		if (mt8173_max98090_dais[i].codec_name)
 			continue;
 		mt8173_max98090_dais[i].codec_of_node = codec_node;
 	}
 	card->dev = &pdev->dev;

 	ret = snd_soc_register_card(card);
 	if (ret)
 		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
 			__func__, ret);
 	return ret;
 }

 static int mt8173_max98090_dev_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);

 	snd_soc_unregister_card(card);
 	return 0;
 }

 static const struct of_device_id mt8173_max98090_dt_match[] = {
 	{ .compatible = "mediatek,mt8173-max98090", },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);

 static struct platform_driver mt8173_max98090_driver = {
 	.driver = {
 		   .name = "mt8173-max98090",
 		   .owner = THIS_MODULE,
 		   .of_match_table = mt8173_max98090_dt_match,
 #ifdef CONFIG_PM
 		   .pm = &snd_soc_pm_ops,
 #endif
 	},
 	.probe = mt8173_max98090_dev_probe,
 	.remove = mt8173_max98090_dev_remove,
 };

 module_platform_driver(mt8173_max98090_driver);

 /* Module information */
 MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
 MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:mt8173-max98090");
	/*
	* mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver
	*
	* Copyright (c) 2015 MediaTek Inc.
	* Author: Koro Chen <koro.chen@mediatek.com>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*/

	#include <linux/module.h>
	#include <sound/soc.h>
	#include <sound/jack.h>
	#include <linux/gpio.h>
	#include "../codecs/max98090.h"

	static struct snd_soc_jack mt8173_max98090_jack;

	static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
	{
	.pin = "Headphone",
	.mask = SND_JACK_HEADPHONE,
	},
	{
	.pin = "Headset Mic",
	.mask = SND_JACK_MICROPHONE,
	},
	};

	static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_MIC("Int Mic", NULL),
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	};

	static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
	{"Speaker", NULL, "SPKL"},
	{"Speaker", NULL, "SPKR"},
	{"DMICL", NULL, "Int Mic"},
	{"Headphone", NULL, "HPL"},
	{"Headphone", NULL, "HPR"},
	{"Headset Mic", NULL, "MICBIAS"},
	{"IN34", NULL, "Headset Mic"},
	};

	static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
	SOC_DAPM_PIN_SWITCH("Speaker"),
	SOC_DAPM_PIN_SWITCH("Int Mic"),
	SOC_DAPM_PIN_SWITCH("Headphone"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	};

	static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
	SND_SOC_CLOCK_IN);
	}

	static struct snd_soc_ops mt8173_max98090_ops = {
	.hw_params = mt8173_max98090_hw_params,
	};

	static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
	{
	int ret;
	struct snd_soc_card *card = runtime->card;
	struct snd_soc_codec *codec = runtime->codec;

	/* enable jack detection */
	ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
	&mt8173_max98090_jack, NULL, 0);
	if (ret) {
	dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret);
	return ret;
	}

	ret = snd_soc_jack_add_pins(&mt8173_max98090_jack,
	ARRAY_SIZE(mt8173_max98090_jack_pins),
	mt8173_max98090_jack_pins);
	if (ret) {
	dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret);
	return ret;
	}

	return max98090_mic_detect(codec, &mt8173_max98090_jack);
	}

	/* Digital audio interface glue - connects codec <---> CPU */
	static struct snd_soc_dai_link mt8173_max98090_dais[] = {
	/* Front End DAI links */
	{
	.name = "MAX98090 Playback",
	.stream_name = "MAX98090 Playback",
	.cpu_dai_name = "DL1",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dynamic = 1,
	.dpcm_playback = 1,
	},
	{
	.name = "MAX98090 Capture",
	.stream_name = "MAX98090 Capture",
	.cpu_dai_name = "VUL",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dynamic = 1,
	.dpcm_capture = 1,
	},
	/* Back End DAI links */
	{
	.name = "Codec",
	.cpu_dai_name = "I2S",
	.no_pcm = 1,
	.codec_dai_name = "HiFi",
	.init = mt8173_max98090_init,
	.ops = &mt8173_max98090_ops,
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	},
	};

	static struct snd_soc_card mt8173_max98090_card = {
	.name = "mt8173-max98090",
	.dai_link = mt8173_max98090_dais,
	.num_links = ARRAY_SIZE(mt8173_max98090_dais),
	.controls = mt8173_max98090_controls,
	.num_controls = ARRAY_SIZE(mt8173_max98090_controls),
	.dapm_widgets = mt8173_max98090_widgets,
	.num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
	.dapm_routes = mt8173_max98090_routes,
	.num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
	};

	static int mt8173_max98090_dev_probe(struct platform_device *pdev)
	{
	struct snd_soc_card *card = &mt8173_max98090_card;
	struct device_node codec_node, platform_node;
	int ret, i;

	platform_node = of_parse_phandle(pdev->dev.of_node,
	"mediatek,platform", 0);
	if (!platform_node) {
	dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
	return -EINVAL;
	}
	for (i = 0; i < card->num_links; i++) {
	if (mt8173_max98090_dais[i].platform_name)
	continue;
	mt8173_max98090_dais[i].platform_of_node = platform_node;
	}

	codec_node = of_parse_phandle(pdev->dev.of_node,
	"mediatek,audio-codec", 0);
	if (!codec_node) {
	dev_err(&pdev->dev,
	"Property 'audio-codec' missing or invalid\n");
	return -EINVAL;
	}
	for (i = 0; i < card->num_links; i++) {
	if (mt8173_max98090_dais[i].codec_name)
	continue;
	mt8173_max98090_dais[i].codec_of_node = codec_node;
	}
	card->dev = &pdev->dev;

	ret = snd_soc_register_card(card);
	if (ret)
	dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
	__func__, ret);
	return ret;
	}

	static int mt8173_max98090_dev_remove(struct platform_device *pdev)
	{
	struct snd_soc_card *card = platform_get_drvdata(pdev);

	snd_soc_unregister_card(card);
	return 0;
	}

	static const struct of_device_id mt8173_max98090_dt_match[] = {
	{ .compatible = "mediatek,mt8173-max98090", },
	{ }
	};
	MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);

	static struct platform_driver mt8173_max98090_driver = {
	.driver = {
	.name = "mt8173-max98090",
	.owner = THIS_MODULE,
	.of_match_table = mt8173_max98090_dt_match,
	#ifdef CONFIG_PM
	.pm = &snd_soc_pm_ops,
	#endif
	},
	.probe = mt8173_max98090_dev_probe,
	.remove = mt8173_max98090_dev_remove,
	};

	module_platform_driver(mt8173_max98090_driver);

	/* Module information */
	MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
	MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:mt8173-max98090");