sound/soc/intel/boards/broadwell.c - linux - Git at Google

 /*
  * 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 "../common/sst-dsp.h"
 #include "../haswell/sst-haswell-ipc.h"

 #include "../../codecs/rt286.h"

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

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

 static const struct snd_soc_dapm_widget broadwell_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("DMIC1", NULL),
 	SND_SOC_DAPM_MIC("DMIC2", NULL),
 	SND_SOC_DAPM_LINE("Line Jack", NULL),
 };

 static const struct snd_soc_dapm_route broadwell_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"},
 	{"LINE1", NULL, "Line Jack"},

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

 	/* CODEC BE connections */
 	{"SSP0 CODEC IN", NULL, "AIF1 Capture"},
 	{"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
 };

 static int broadwell_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_component *component = rtd->codec_dai->component;
 	int ret = 0;
 	ret = snd_soc_card_jack_new(rtd->card, "Headset",
 		SND_JACK_HEADSET | SND_JACK_BTN_0, &broadwell_headset,
 		broadwell_headset_pins, ARRAY_SIZE(broadwell_headset_pins));
 	if (ret)
 		return ret;

 	rt286_mic_detect(component, &broadwell_headset);
 	return 0;
 }


 static int broadwell_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 ADSP will covert the FE rate to 48k, stereo */
 	rate->min = rate->max = 48000;
 	channels->min = channels->max = 2;

 	/* set SSP0 to 16 bit */
 	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 	return 0;
 }

 static int broadwell_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, "can't set codec sysclk configuration\n");
 		return ret;
 	}

 	return ret;
 }

 static const struct snd_soc_ops broadwell_rt286_ops = {
 	.hw_params = broadwell_rt286_hw_params,
 };

 static int broadwell_rtd_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 	struct sst_pdata *pdata = dev_get_platdata(component->dev);
 	struct sst_hsw *broadwell = pdata->dsp;
 	int ret;

 	/* Set ADSP SSP port settings */
 	ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
 		SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 		SST_HSW_DEVICE_CLOCK_MASTER, 9);
 	if (ret < 0) {
 		dev_err(rtd->dev, "error: failed to set device config\n");
 		return ret;
 	}

 	return 0;
 }

 /* broadwell digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link broadwell_rt286_dais[] = {
 	/* Front End DAI links */
 	{
 		.name = "System PCM",
 		.stream_name = "System Playback/Capture",
 		.cpu_dai_name = "System Pin",
 		.platform_name = "haswell-pcm-audio",
 		.dynamic = 1,
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.init = broadwell_rtd_init,
 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 	},
 	{
 		.name = "Offload0",
 		.stream_name = "Offload0 Playback",
 		.cpu_dai_name = "Offload0 Pin",
 		.platform_name = "haswell-pcm-audio",
 		.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 = "Offload1",
 		.stream_name = "Offload1 Playback",
 		.cpu_dai_name = "Offload1 Pin",
 		.platform_name = "haswell-pcm-audio",
 		.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 = "Loopback PCM",
 		.stream_name = "Loopback",
 		.cpu_dai_name = "Loopback Pin",
 		.platform_name = "haswell-pcm-audio",
 		.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,
 	},
 	/* Back End DAI links */
 	{
 		/* SSP0 - Codec */
 		.name = "Codec",
 		.id = 0,
 		.cpu_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "snd-soc-dummy",
 		.no_pcm = 1,
 		.codec_name = "i2c-INT343A:00",
 		.codec_dai_name = "rt286-aif1",
 		.init = broadwell_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 = broadwell_ssp0_fixup,
 		.ops = &broadwell_rt286_ops,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 	},
 };

 static int broadwell_suspend(struct snd_soc_card *card){
 	struct snd_soc_component *component;

 	for_each_card_components(card, component) {
 		if (!strcmp(component->name, "i2c-INT343A:00")) {

 			dev_dbg(component->dev, "disabling jack detect before going to suspend.\n");
 			rt286_mic_detect(component, NULL);
 			break;
 		}
 	}
 	return 0;
 }

 static int broadwell_resume(struct snd_soc_card *card){
 	struct snd_soc_component *component;

 	for_each_card_components(card, component) {
 		if (!strcmp(component->name, "i2c-INT343A:00")) {

 			dev_dbg(component->dev, "enabling jack detect for resume.\n");
 			rt286_mic_detect(component, &broadwell_headset);
 			break;
 		}
 	}
 	return 0;
 }

 /* broadwell audio machine driver for WPT + RT286S */
 static struct snd_soc_card broadwell_rt286 = {
 	.name = "broadwell-rt286",
 	.owner = THIS_MODULE,
 	.dai_link = broadwell_rt286_dais,
 	.num_links = ARRAY_SIZE(broadwell_rt286_dais),
 	.controls = broadwell_controls,
 	.num_controls = ARRAY_SIZE(broadwell_controls),
 	.dapm_widgets = broadwell_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(broadwell_widgets),
 	.dapm_routes = broadwell_rt286_map,
 	.num_dapm_routes = ARRAY_SIZE(broadwell_rt286_map),
 	.fully_routed = true,
 	.suspend_pre = broadwell_suspend,
 	.resume_post = broadwell_resume,
 };

 static int broadwell_audio_probe(struct platform_device *pdev)
 {
 	broadwell_rt286.dev = &pdev->dev;
 	return devm_snd_soc_register_card(&pdev->dev, &broadwell_rt286);
 }

 static struct platform_driver broadwell_audio = {
 	.probe = broadwell_audio_probe,
 	.driver = {
 		.name = "broadwell-audio",
 	},
 };

 module_platform_driver(broadwell_audio)

 /* Module information */
 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
 MODULE_DESCRIPTION("Intel SST Audio for WPT/Broadwell");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:broadwell-audio");
	/*
	* 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 "../common/sst-dsp.h"
	#include "../haswell/sst-haswell-ipc.h"

	#include "../../codecs/rt286.h"

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

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

	static const struct snd_soc_dapm_widget broadwell_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("DMIC1", NULL),
	SND_SOC_DAPM_MIC("DMIC2", NULL),
	SND_SOC_DAPM_LINE("Line Jack", NULL),
	};

	static const struct snd_soc_dapm_route broadwell_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"},
	{"LINE1", NULL, "Line Jack"},

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

	/* CODEC BE connections */
	{"SSP0 CODEC IN", NULL, "AIF1 Capture"},
	{"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
	};

	static int broadwell_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_component *component = rtd->codec_dai->component;
	int ret = 0;
	ret = snd_soc_card_jack_new(rtd->card, "Headset",
	SND_JACK_HEADSET \| SND_JACK_BTN_0, &broadwell_headset,
	broadwell_headset_pins, ARRAY_SIZE(broadwell_headset_pins));
	if (ret)
	return ret;

	rt286_mic_detect(component, &broadwell_headset);
	return 0;
	}


	static int broadwell_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 ADSP will covert the FE rate to 48k, stereo */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	/* set SSP0 to 16 bit */
	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
	return 0;
	}

	static int broadwell_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, "can't set codec sysclk configuration\n");
	return ret;
	}

	return ret;
	}

	static const struct snd_soc_ops broadwell_rt286_ops = {
	.hw_params = broadwell_rt286_hw_params,
	};

	static int broadwell_rtd_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
	struct sst_pdata *pdata = dev_get_platdata(component->dev);
	struct sst_hsw *broadwell = pdata->dsp;
	int ret;

	/* Set ADSP SSP port settings */
	ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
	SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
	SST_HSW_DEVICE_CLOCK_MASTER, 9);
	if (ret < 0) {
	dev_err(rtd->dev, "error: failed to set device config\n");
	return ret;
	}

	return 0;
	}

	/* broadwell digital audio interface glue - connects codec <--> CPU */
	static struct snd_soc_dai_link broadwell_rt286_dais[] = {
	/* Front End DAI links */
	{
	.name = "System PCM",
	.stream_name = "System Playback/Capture",
	.cpu_dai_name = "System Pin",
	.platform_name = "haswell-pcm-audio",
	.dynamic = 1,
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.init = broadwell_rtd_init,
	.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	},
	{
	.name = "Offload0",
	.stream_name = "Offload0 Playback",
	.cpu_dai_name = "Offload0 Pin",
	.platform_name = "haswell-pcm-audio",
	.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 = "Offload1",
	.stream_name = "Offload1 Playback",
	.cpu_dai_name = "Offload1 Pin",
	.platform_name = "haswell-pcm-audio",
	.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 = "Loopback PCM",
	.stream_name = "Loopback",
	.cpu_dai_name = "Loopback Pin",
	.platform_name = "haswell-pcm-audio",
	.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,
	},
	/* Back End DAI links */
	{
	/* SSP0 - Codec */
	.name = "Codec",
	.id = 0,
	.cpu_dai_name = "snd-soc-dummy-dai",
	.platform_name = "snd-soc-dummy",
	.no_pcm = 1,
	.codec_name = "i2c-INT343A:00",
	.codec_dai_name = "rt286-aif1",
	.init = broadwell_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 = broadwell_ssp0_fixup,
	.ops = &broadwell_rt286_ops,
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	},
	};

	static int broadwell_suspend(struct snd_soc_card *card){
	struct snd_soc_component *component;

	for_each_card_components(card, component) {
	if (!strcmp(component->name, "i2c-INT343A:00")) {

	dev_dbg(component->dev, "disabling jack detect before going to suspend.\n");
	rt286_mic_detect(component, NULL);
	break;
	}
	}
	return 0;
	}

	static int broadwell_resume(struct snd_soc_card *card){
	struct snd_soc_component *component;

	for_each_card_components(card, component) {
	if (!strcmp(component->name, "i2c-INT343A:00")) {

	dev_dbg(component->dev, "enabling jack detect for resume.\n");
	rt286_mic_detect(component, &broadwell_headset);
	break;
	}
	}
	return 0;
	}

	/* broadwell audio machine driver for WPT + RT286S */
	static struct snd_soc_card broadwell_rt286 = {
	.name = "broadwell-rt286",
	.owner = THIS_MODULE,
	.dai_link = broadwell_rt286_dais,
	.num_links = ARRAY_SIZE(broadwell_rt286_dais),
	.controls = broadwell_controls,
	.num_controls = ARRAY_SIZE(broadwell_controls),
	.dapm_widgets = broadwell_widgets,
	.num_dapm_widgets = ARRAY_SIZE(broadwell_widgets),
	.dapm_routes = broadwell_rt286_map,
	.num_dapm_routes = ARRAY_SIZE(broadwell_rt286_map),
	.fully_routed = true,
	.suspend_pre = broadwell_suspend,
	.resume_post = broadwell_resume,
	};

	static int broadwell_audio_probe(struct platform_device *pdev)
	{
	broadwell_rt286.dev = &pdev->dev;
	return devm_snd_soc_register_card(&pdev->dev, &broadwell_rt286);
	}

	static struct platform_driver broadwell_audio = {
	.probe = broadwell_audio_probe,
	.driver = {
	.name = "broadwell-audio",
	},
	};

	module_platform_driver(broadwell_audio)

	/* Module information */
	MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
	MODULE_DESCRIPTION("Intel SST Audio for WPT/Broadwell");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:broadwell-audio");