sound/soc/intel/boards/skl_rt286.c - kernel/bruno - Git at Google

 /*
  * Intel Skylake I2S Machine Driver
  *
  * Copyright (C) 2014-2015, Intel Corporation. All rights reserved.
  *
  * Modified from:
  *   Intel Broadwell Wildcatpoint SST Audio
  *
  *   Copyright (C) 2013, Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License 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 <linux/platform_device.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <sound/jack.h>
 #include <sound/pcm_params.h>
 #include "../../codecs/rt286.h"

 static struct snd_soc_jack skylake_headset;
 /* Headset jack detection DAPM pins */
 static struct snd_soc_jack_pin skylake_headset_pins[] = {
 	{
 		.pin = "Mic Jack",
 		.mask = SND_JACK_MICROPHONE,
 	},
 	{
 		.pin = "Headphone Jack",
 		.mask = SND_JACK_HEADPHONE,
 	},
 };

 static const struct snd_kcontrol_new skylake_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Speaker"),
 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 	SOC_DAPM_PIN_SWITCH("Mic Jack"),
 };

 static const struct snd_soc_dapm_widget skylake_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 	SND_SOC_DAPM_SPK("Speaker", NULL),
 	SND_SOC_DAPM_MIC("Mic Jack", NULL),
 	SND_SOC_DAPM_MIC("DMIC2", NULL),
 	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
 };

 static const struct snd_soc_dapm_route skylake_rt286_map[] = {
 	/* speaker */
 	{"Speaker", NULL, "SPOR"},
 	{"Speaker", NULL, "SPOL"},

 	/* HP jack connectors - unknown if we have jack deteck */
 	{"Headphone Jack", NULL, "HPO Pin"},

 	/* other jacks */
 	{"MIC1", NULL, "Mic Jack"},

 	/* digital mics */
 	{"DMIC1 Pin", NULL, "DMIC2"},
 	{"DMIC AIF", NULL, "SoC DMIC"},

 	/* CODEC BE connections */
 	{ "AIF1 Playback", NULL, "ssp0 Tx"},
 	{ "ssp0 Tx", NULL, "codec0_out"},
 	{ "ssp0 Tx", NULL, "codec1_out"},

 	{ "codec0_in", NULL, "ssp0 Rx" },
 	{ "codec1_in", NULL, "ssp0 Rx" },
 	{ "ssp0 Rx", NULL, "AIF1 Capture" },

 	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
 	{ "DMIC01 Rx", NULL, "Capture" },

 	{ "hif1", NULL, "iDisp Tx"},
 	{ "iDisp Tx", NULL, "iDisp_out"},

 };

 static int skylake_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_codec *codec = rtd->codec;
 	int ret;

 	ret = snd_soc_card_jack_new(rtd->card, "Headset",
 		SND_JACK_HEADSET | SND_JACK_BTN_0,
 		&skylake_headset,
 		skylake_headset_pins, ARRAY_SIZE(skylake_headset_pins));

 	if (ret)
 		return ret;

 	rt286_mic_detect(codec, &skylake_headset);

 	return 0;
 }


 static int skylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 			struct snd_pcm_hw_params *params)
 {
 	struct snd_interval *rate = hw_param_interval(params,
 			SNDRV_PCM_HW_PARAM_RATE);
 	struct snd_interval *channels = hw_param_interval(params,
 						SNDRV_PCM_HW_PARAM_CHANNELS);

 	/* The output is 48KHz, stereo, 16bits */
 	rate->min = rate->max = 48000;
 	channels->min = channels->max = 2;
 	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);

 	return 0;
 }

 static int skylake_rt286_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;
 	int ret;

 	ret = snd_soc_dai_set_sysclk(codec_dai, RT286_SCLK_S_PLL, 24000000,
 		SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		dev_err(rtd->dev, "set codec sysclk failed: %d\n", ret);

 	return ret;
 }

 static struct snd_soc_ops skylake_rt286_ops = {
 	.hw_params = skylake_rt286_hw_params,
 };

 /* skylake digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link skylake_rt286_dais[] = {
 	/* Front End DAI links */
 	{
 		.name = "Skl Audio Port",
 		.stream_name = "Audio",
 		.cpu_dai_name = "System Pin",
 		.platform_name = "0000:00:1f.3",
 		.nonatomic = 1,
 		.dynamic = 1,
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST,
 			SND_SOC_DPCM_TRIGGER_POST
 		},
 		.dpcm_playback = 1,
 	},
 	{
 		.name = "Skl Audio Capture Port",
 		.stream_name = "Audio Record",
 		.cpu_dai_name = "System Pin",
 		.platform_name = "0000:00:1f.3",
 		.nonatomic = 1,
 		.dynamic = 1,
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST,
 			SND_SOC_DPCM_TRIGGER_POST
 		},
 		.dpcm_capture = 1,
 	},
 	{
 		.name = "Skl Audio Reference cap",
 		.stream_name = "refcap",
 		.cpu_dai_name = "Reference Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:1f.3",
 		.init = NULL,
 		.dpcm_capture = 1,
 		.ignore_suspend = 1,
 		.nonatomic = 1,
 		.dynamic = 1,
 	},

 	/* Back End DAI links */
 	{
 		/* SSP0 - Codec */
 		.name = "SSP0-Codec",
 		.be_id = 0,
 		.cpu_dai_name = "SSP0 Pin",
 		.platform_name = "0000:00:1f.3",
 		.no_pcm = 1,
 		.codec_name = "i2c-INT343A:00",
 		.codec_dai_name = "rt286-aif1",
 		.init = skylake_rt286_codec_init,
 		.dai_fmt = SND_SOC_DAIFMT_I2S |
 			SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_CBS_CFS,
 		.ignore_suspend = 1,
 		.ignore_pmdown_time = 1,
 		.be_hw_params_fixup = skylake_ssp0_fixup,
 		.ops = &skylake_rt286_ops,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 	},
 	{
 		.name = "dmic01",
 		.be_id = 1,
 		.cpu_dai_name = "DMIC01 Pin",
 		.codec_name = "dmic-codec",
 		.codec_dai_name = "dmic-hifi",
 		.platform_name = "0000:00:1f.3",
 		.ignore_suspend = 1,
 		.dpcm_capture = 1,
 		.no_pcm = 1,
 	},
 };

 /* skylake audio machine driver for SPT + RT286S */
 static struct snd_soc_card skylake_rt286 = {
 	.name = "skylake-rt286",
 	.owner = THIS_MODULE,
 	.dai_link = skylake_rt286_dais,
 	.num_links = ARRAY_SIZE(skylake_rt286_dais),
 	.controls = skylake_controls,
 	.num_controls = ARRAY_SIZE(skylake_controls),
 	.dapm_widgets = skylake_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
 	.dapm_routes = skylake_rt286_map,
 	.num_dapm_routes = ARRAY_SIZE(skylake_rt286_map),
 	.fully_routed = true,
 };

 static int skylake_audio_probe(struct platform_device *pdev)
 {
 	skylake_rt286.dev = &pdev->dev;

 	return devm_snd_soc_register_card(&pdev->dev, &skylake_rt286);
 }

 static struct platform_driver skylake_audio = {
 	.probe = skylake_audio_probe,
 	.driver = {
 		.name = "skl_alc286s_i2s",
 	},
 };

 module_platform_driver(skylake_audio)

 /* Module information */
 MODULE_AUTHOR("Omair Mohammed Abdullah <omair.m.abdullah@intel.com>");
 MODULE_DESCRIPTION("Intel SST Audio for Skylake");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:skl_alc286s_i2s");
	/*
	* Intel Skylake I2S Machine Driver
	*
	* Copyright (C) 2014-2015, Intel Corporation. All rights reserved.
	*
	* Modified from:
	* Intel Broadwell Wildcatpoint SST Audio
	*
	* Copyright (C) 2013, Intel Corporation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License 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 <linux/platform_device.h>
	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>
	#include <sound/jack.h>
	#include <sound/pcm_params.h>
	#include "../../codecs/rt286.h"

	static struct snd_soc_jack skylake_headset;
	/* Headset jack detection DAPM pins */
	static struct snd_soc_jack_pin skylake_headset_pins[] = {
	{
	.pin = "Mic Jack",
	.mask = SND_JACK_MICROPHONE,
	},
	{
	.pin = "Headphone Jack",
	.mask = SND_JACK_HEADPHONE,
	},
	};

	static const struct snd_kcontrol_new skylake_controls[] = {
	SOC_DAPM_PIN_SWITCH("Speaker"),
	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	SOC_DAPM_PIN_SWITCH("Mic Jack"),
	};

	static const struct snd_soc_dapm_widget skylake_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	SND_SOC_DAPM_MIC("DMIC2", NULL),
	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
	};

	static const struct snd_soc_dapm_route skylake_rt286_map[] = {
	/* speaker */
	{"Speaker", NULL, "SPOR"},
	{"Speaker", NULL, "SPOL"},

	/* HP jack connectors - unknown if we have jack deteck */
	{"Headphone Jack", NULL, "HPO Pin"},

	/* other jacks */
	{"MIC1", NULL, "Mic Jack"},

	/* digital mics */
	{"DMIC1 Pin", NULL, "DMIC2"},
	{"DMIC AIF", NULL, "SoC DMIC"},

	/* CODEC BE connections */
	{ "AIF1 Playback", NULL, "ssp0 Tx"},
	{ "ssp0 Tx", NULL, "codec0_out"},
	{ "ssp0 Tx", NULL, "codec1_out"},

	{ "codec0_in", NULL, "ssp0 Rx" },
	{ "codec1_in", NULL, "ssp0 Rx" },
	{ "ssp0 Rx", NULL, "AIF1 Capture" },

	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
	{ "DMIC01 Rx", NULL, "Capture" },

	{ "hif1", NULL, "iDisp Tx"},
	{ "iDisp Tx", NULL, "iDisp_out"},

	};

	static int skylake_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_codec *codec = rtd->codec;
	int ret;

	ret = snd_soc_card_jack_new(rtd->card, "Headset",
	SND_JACK_HEADSET \| SND_JACK_BTN_0,
	&skylake_headset,
	skylake_headset_pins, ARRAY_SIZE(skylake_headset_pins));

	if (ret)
	return ret;

	rt286_mic_detect(codec, &skylake_headset);

	return 0;
	}


	static int skylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
	struct snd_pcm_hw_params *params)
	{
	struct snd_interval *rate = hw_param_interval(params,
	SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels = hw_param_interval(params,
	SNDRV_PCM_HW_PARAM_CHANNELS);

	/* The output is 48KHz, stereo, 16bits */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;
	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);

	return 0;
	}

	static int skylake_rt286_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;
	int ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, RT286_SCLK_S_PLL, 24000000,
	SND_SOC_CLOCK_IN);
	if (ret < 0)
	dev_err(rtd->dev, "set codec sysclk failed: %d\n", ret);

	return ret;
	}

	static struct snd_soc_ops skylake_rt286_ops = {
	.hw_params = skylake_rt286_hw_params,
	};

	/* skylake digital audio interface glue - connects codec <--> CPU */
	static struct snd_soc_dai_link skylake_rt286_dais[] = {
	/* Front End DAI links */
	{
	.name = "Skl Audio Port",
	.stream_name = "Audio",
	.cpu_dai_name = "System Pin",
	.platform_name = "0000:00:1f.3",
	.nonatomic = 1,
	.dynamic = 1,
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.trigger = {
	SND_SOC_DPCM_TRIGGER_POST,
	SND_SOC_DPCM_TRIGGER_POST
	},
	.dpcm_playback = 1,
	},
	{
	.name = "Skl Audio Capture Port",
	.stream_name = "Audio Record",
	.cpu_dai_name = "System Pin",
	.platform_name = "0000:00:1f.3",
	.nonatomic = 1,
	.dynamic = 1,
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.trigger = {
	SND_SOC_DPCM_TRIGGER_POST,
	SND_SOC_DPCM_TRIGGER_POST
	},
	.dpcm_capture = 1,
	},
	{
	.name = "Skl Audio Reference cap",
	.stream_name = "refcap",
	.cpu_dai_name = "Reference Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:1f.3",
	.init = NULL,
	.dpcm_capture = 1,
	.ignore_suspend = 1,
	.nonatomic = 1,
	.dynamic = 1,
	},

	/* Back End DAI links */
	{
	/* SSP0 - Codec */
	.name = "SSP0-Codec",
	.be_id = 0,
	.cpu_dai_name = "SSP0 Pin",
	.platform_name = "0000:00:1f.3",
	.no_pcm = 1,
	.codec_name = "i2c-INT343A:00",
	.codec_dai_name = "rt286-aif1",
	.init = skylake_rt286_codec_init,
	.dai_fmt = SND_SOC_DAIFMT_I2S \|
	SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ignore_suspend = 1,
	.ignore_pmdown_time = 1,
	.be_hw_params_fixup = skylake_ssp0_fixup,
	.ops = &skylake_rt286_ops,
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	},
	{
	.name = "dmic01",
	.be_id = 1,
	.cpu_dai_name = "DMIC01 Pin",
	.codec_name = "dmic-codec",
	.codec_dai_name = "dmic-hifi",
	.platform_name = "0000:00:1f.3",
	.ignore_suspend = 1,
	.dpcm_capture = 1,
	.no_pcm = 1,
	},
	};

	/* skylake audio machine driver for SPT + RT286S */
	static struct snd_soc_card skylake_rt286 = {
	.name = "skylake-rt286",
	.owner = THIS_MODULE,
	.dai_link = skylake_rt286_dais,
	.num_links = ARRAY_SIZE(skylake_rt286_dais),
	.controls = skylake_controls,
	.num_controls = ARRAY_SIZE(skylake_controls),
	.dapm_widgets = skylake_widgets,
	.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
	.dapm_routes = skylake_rt286_map,
	.num_dapm_routes = ARRAY_SIZE(skylake_rt286_map),
	.fully_routed = true,
	};

	static int skylake_audio_probe(struct platform_device *pdev)
	{
	skylake_rt286.dev = &pdev->dev;

	return devm_snd_soc_register_card(&pdev->dev, &skylake_rt286);
	}

	static struct platform_driver skylake_audio = {
	.probe = skylake_audio_probe,
	.driver = {
	.name = "skl_alc286s_i2s",
	},
	};

	module_platform_driver(skylake_audio)

	/* Module information */
	MODULE_AUTHOR("Omair Mohammed Abdullah <omair.m.abdullah@intel.com>");
	MODULE_DESCRIPTION("Intel SST Audio for Skylake");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:skl_alc286s_i2s");