sound/soc/intel/boards/bxt_rt298.c - third_party/linux - Git at Google

 /*
  * Intel Broxton-P I2S Machine Driver
  *
  * Copyright (C) 2014-2016, Intel Corporation. All rights reserved.
  *
  * Modified from:
  *   Intel Skylake I2S Machine driver
  *
  * 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/hdac_hdmi.h"
 #include "../../codecs/rt298.h"

 /* Headset jack detection DAPM pins */
 static struct snd_soc_jack broxton_headset;
 static struct snd_soc_jack broxton_hdmi[3];

 struct bxt_hdmi_pcm {
 	struct list_head head;
 	struct snd_soc_dai *codec_dai;
 	int device;
 };

 struct bxt_rt286_private {
 	struct list_head hdmi_pcm_list;
 };

 enum {
 	BXT_DPCM_AUDIO_PB = 0,
 	BXT_DPCM_AUDIO_CP,
 	BXT_DPCM_AUDIO_REF_CP,
 	BXT_DPCM_AUDIO_DMIC_CP,
 	BXT_DPCM_AUDIO_HDMI1_PB,
 	BXT_DPCM_AUDIO_HDMI2_PB,
 	BXT_DPCM_AUDIO_HDMI3_PB,
 };

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

 static const struct snd_kcontrol_new broxton_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 broxton_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),
 	SND_SOC_DAPM_SPK("HDMI1", NULL),
 	SND_SOC_DAPM_SPK("HDMI2", NULL),
 	SND_SOC_DAPM_SPK("HDMI3", NULL),
 };

 static const struct snd_soc_dapm_route broxton_rt298_map[] = {
 	/* speaker */
 	{"Speaker", NULL, "SPOR"},
 	{"Speaker", NULL, "SPOL"},

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

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

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

 	{"HDMI1", NULL, "hif5-0 Output"},
 	{"HDMI2", NULL, "hif6-0 Output"},
 	{"HDMI2", NULL, "hif7-0 Output"},

 	/* CODEC BE connections */
 	{ "AIF1 Playback", NULL, "ssp5 Tx"},
 	{ "ssp5 Tx", NULL, "codec0_out"},
 	{ "ssp5 Tx", NULL, "codec1_out"},

 	{ "codec0_in", NULL, "ssp5 Rx" },
 	{ "ssp5 Rx", NULL, "AIF1 Capture" },

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

 	{ "hifi3", NULL, "iDisp3 Tx"},
 	{ "iDisp3 Tx", NULL, "iDisp3_out"},
 	{ "hifi2", NULL, "iDisp2 Tx"},
 	{ "iDisp2 Tx", NULL, "iDisp2_out"},
 	{ "hifi1", NULL, "iDisp1 Tx"},
 	{ "iDisp1 Tx", NULL, "iDisp1_out"},
 };

 static const struct snd_soc_dapm_route geminilake_rt298_map[] = {
 	/* speaker */
 	{"Speaker", NULL, "SPOR"},
 	{"Speaker", NULL, "SPOL"},

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

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

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

 	{"HDMI1", NULL, "hif5-0 Output"},
 	{"HDMI2", NULL, "hif6-0 Output"},
 	{"HDMI2", NULL, "hif7-0 Output"},

 	/* CODEC BE connections */
 	{ "AIF1 Playback", NULL, "ssp2 Tx"},
 	{ "ssp2 Tx", NULL, "codec0_out"},
 	{ "ssp2 Tx", NULL, "codec1_out"},

 	{ "codec0_in", NULL, "ssp2 Rx" },
 	{ "ssp2 Rx", NULL, "AIF1 Capture" },

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

 	{ "dmic_voice", NULL, "DMIC16k Rx" },
 	{ "DMIC16k Rx", NULL, "Capture" },

 	{ "hifi3", NULL, "iDisp3 Tx"},
 	{ "iDisp3 Tx", NULL, "iDisp3_out"},
 	{ "hifi2", NULL, "iDisp2 Tx"},
 	{ "iDisp2 Tx", NULL, "iDisp2_out"},
 	{ "hifi1", NULL, "iDisp1 Tx"},
 	{ "iDisp1 Tx", NULL, "iDisp1_out"},
 };

 static int broxton_rt298_fe_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_dapm_context *dapm;
 	struct snd_soc_component *component = rtd->cpu_dai->component;

 	dapm = snd_soc_component_get_dapm(component);
 	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");

 	return 0;
 }

 static int broxton_rt298_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,
 		&broxton_headset,
 		broxton_headset_pins, ARRAY_SIZE(broxton_headset_pins));

 	if (ret)
 		return ret;

 	rt298_mic_detect(component, &broxton_headset);

 	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");

 	return 0;
 }

 static int broxton_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 	struct snd_soc_dai *dai = rtd->codec_dai;
 	struct bxt_hdmi_pcm *pcm;

 	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
 	if (!pcm)
 		return -ENOMEM;

 	pcm->device = BXT_DPCM_AUDIO_HDMI1_PB + dai->id;
 	pcm->codec_dai = dai;

 	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);

 	return 0;
 }

 static int broxton_ssp5_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);
 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

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

 	/* set SSP5 to 24 bit */
 	snd_mask_none(fmt);
 	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);

 	return 0;
 }

 static int broxton_rt298_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, RT298_SCLK_S_PLL,
 					19200000, 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 broxton_rt298_ops = {
 	.hw_params = broxton_rt298_hw_params,
 };

 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 int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
 				struct snd_pcm_hw_params *params)
 {
 	struct snd_interval *channels = hw_param_interval(params,
 						SNDRV_PCM_HW_PARAM_CHANNELS);
 	channels->min = channels->max = 4;

 	return 0;
 }

 static const unsigned int channels_dmic[] = {
 	1, 2, 3, 4,
 };

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

 static int broxton_dmic_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;

 	runtime->hw.channels_max = 4;
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 					&constraints_dmic_channels);

 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
 				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
 }

 static const struct snd_soc_ops broxton_dmic_ops = {
 	.startup = broxton_dmic_startup,
 };

 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 int bxt_fe_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;

 	/*
 	 * on this platform for PCM device we support:
 	 *      48Khz
 	 *      stereo
 	 *	16-bit audio
 	 */

 	runtime->hw.channels_max = 2;
 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 				&constraints_channels);

 	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
 	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
 	snd_pcm_hw_constraint_list(runtime, 0,
 				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);

 	return 0;
 }

 static const struct snd_soc_ops broxton_rt286_fe_ops = {
 	.startup = bxt_fe_startup,
 };

 /* broxton digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link broxton_rt298_dais[] = {
 	/* Front End DAI links */
 	[BXT_DPCM_AUDIO_PB] =
 	{
 		.name = "Bxt Audio Port",
 		.stream_name = "Audio",
 		.cpu_dai_name = "System Pin",
 		.platform_name = "0000:00:0e.0",
 		.nonatomic = 1,
 		.dynamic = 1,
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.init = broxton_rt298_fe_init,
 		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 		.dpcm_playback = 1,
 		.ops = &broxton_rt286_fe_ops,
 	},
 	[BXT_DPCM_AUDIO_CP] =
 	{
 		.name = "Bxt Audio Capture Port",
 		.stream_name = "Audio Record",
 		.cpu_dai_name = "System Pin",
 		.platform_name = "0000:00:0e.0",
 		.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,
 		.ops = &broxton_rt286_fe_ops,
 	},
 	[BXT_DPCM_AUDIO_REF_CP] =
 	{
 		.name = "Bxt 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 = "0000:00:0e.0",
 		.init = NULL,
 		.dpcm_capture = 1,
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	[BXT_DPCM_AUDIO_DMIC_CP] =
 	{
 		.name = "Bxt Audio DMIC cap",
 		.stream_name = "dmiccap",
 		.cpu_dai_name = "DMIC Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.init = NULL,
 		.dpcm_capture = 1,
 		.nonatomic = 1,
 		.dynamic = 1,
 		.ops = &broxton_dmic_ops,
 	},
 	[BXT_DPCM_AUDIO_HDMI1_PB] =
 	{
 		.name = "Bxt HDMI Port1",
 		.stream_name = "Hdmi1",
 		.cpu_dai_name = "HDMI1 Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.dpcm_playback = 1,
 		.init = NULL,
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	[BXT_DPCM_AUDIO_HDMI2_PB] =
 	{
 		.name = "Bxt HDMI Port2",
 		.stream_name = "Hdmi2",
 		.cpu_dai_name = "HDMI2 Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.dpcm_playback = 1,
 		.init = NULL,
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	[BXT_DPCM_AUDIO_HDMI3_PB] =
 	{
 		.name = "Bxt HDMI Port3",
 		.stream_name = "Hdmi3",
 		.cpu_dai_name = "HDMI3 Pin",
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
 		.platform_name = "0000:00:0e.0",
 		.dpcm_playback = 1,
 		.init = NULL,
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
 	/* Back End DAI links */
 	{
 		/* SSP5 - Codec */
 		.name = "SSP5-Codec",
 		.id = 0,
 		.cpu_dai_name = "SSP5 Pin",
 		.platform_name = "0000:00:0e.0",
 		.no_pcm = 1,
 		.codec_name = "i2c-INT343A:00",
 		.codec_dai_name = "rt298-aif1",
 		.init = broxton_rt298_codec_init,
 		.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF |
 						SND_SOC_DAIFMT_CBS_CFS,
 		.ignore_pmdown_time = 1,
 		.be_hw_params_fixup = broxton_ssp5_fixup,
 		.ops = &broxton_rt298_ops,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
 	},
 	{
 		.name = "dmic01",
 		.id = 1,
 		.cpu_dai_name = "DMIC01 Pin",
 		.codec_name = "dmic-codec",
 		.codec_dai_name = "dmic-hifi",
 		.platform_name = "0000:00:0e.0",
 		.be_hw_params_fixup = broxton_dmic_fixup,
 		.ignore_suspend = 1,
 		.dpcm_capture = 1,
 		.no_pcm = 1,
 	},
 	{
 		.name = "dmic16k",
 		.id = 2,
 		.cpu_dai_name = "DMIC16k Pin",
 		.codec_name = "dmic-codec",
 		.codec_dai_name = "dmic-hifi",
 		.platform_name = "0000:00:0e.0",
 		.be_hw_params_fixup = broxton_dmic_fixup,
 		.ignore_suspend = 1,
 		.dpcm_capture = 1,
 		.no_pcm = 1,
 	},
 	{
 		.name = "iDisp1",
 		.id = 3,
 		.cpu_dai_name = "iDisp1 Pin",
 		.codec_name = "ehdaudio0D2",
 		.codec_dai_name = "intel-hdmi-hifi1",
 		.platform_name = "0000:00:0e.0",
 		.init = broxton_hdmi_init,
 		.dpcm_playback = 1,
 		.no_pcm = 1,
 	},
 	{
 		.name = "iDisp2",
 		.id = 4,
 		.cpu_dai_name = "iDisp2 Pin",
 		.codec_name = "ehdaudio0D2",
 		.codec_dai_name = "intel-hdmi-hifi2",
 		.platform_name = "0000:00:0e.0",
 		.init = broxton_hdmi_init,
 		.dpcm_playback = 1,
 		.no_pcm = 1,
 	},
 	{
 		.name = "iDisp3",
 		.id = 5,
 		.cpu_dai_name = "iDisp3 Pin",
 		.codec_name = "ehdaudio0D2",
 		.codec_dai_name = "intel-hdmi-hifi3",
 		.platform_name = "0000:00:0e.0",
 		.init = broxton_hdmi_init,
 		.dpcm_playback = 1,
 		.no_pcm = 1,
 	},
 };

 #define NAME_SIZE	32
 static int bxt_card_late_probe(struct snd_soc_card *card)
 {
 	struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(card);
 	struct bxt_hdmi_pcm *pcm;
 	struct snd_soc_component *component = NULL;
 	int err, i = 0;
 	char jack_name[NAME_SIZE];

 	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
 		component = pcm->codec_dai->component;
 		snprintf(jack_name, sizeof(jack_name),
 			"HDMI/DP, pcm=%d Jack", pcm->device);
 		err = snd_soc_card_jack_new(card, jack_name,
 					SND_JACK_AVOUT, &broxton_hdmi[i],
 					NULL, 0);

 		if (err)
 			return err;

 		err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
 						&broxton_hdmi[i]);
 		if (err < 0)
 			return err;

 		i++;
 	}

 	if (!component)
 		return -EINVAL;

 	return hdac_hdmi_jack_port_init(component, &card->dapm);
 }


 /* broxton audio machine driver for SPT + RT298S */
 static struct snd_soc_card broxton_rt298 = {
 	.name = "broxton-rt298",
 	.owner = THIS_MODULE,
 	.dai_link = broxton_rt298_dais,
 	.num_links = ARRAY_SIZE(broxton_rt298_dais),
 	.controls = broxton_controls,
 	.num_controls = ARRAY_SIZE(broxton_controls),
 	.dapm_widgets = broxton_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
 	.dapm_routes = broxton_rt298_map,
 	.num_dapm_routes = ARRAY_SIZE(broxton_rt298_map),
 	.fully_routed = true,
 	.late_probe = bxt_card_late_probe,

 };

 static struct snd_soc_card geminilake_rt298 = {
 	.name = "geminilake-rt298",
 	.owner = THIS_MODULE,
 	.dai_link = broxton_rt298_dais,
 	.num_links = ARRAY_SIZE(broxton_rt298_dais),
 	.controls = broxton_controls,
 	.num_controls = ARRAY_SIZE(broxton_controls),
 	.dapm_widgets = broxton_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
 	.dapm_routes = geminilake_rt298_map,
 	.num_dapm_routes = ARRAY_SIZE(geminilake_rt298_map),
 	.fully_routed = true,
 	.late_probe = bxt_card_late_probe,
 };

 static int broxton_audio_probe(struct platform_device *pdev)
 {
 	struct bxt_rt286_private *ctx;
 	struct snd_soc_card *card =
 			(struct snd_soc_card *)pdev->id_entry->driver_data;
 	int i;

 	for (i = 0; i < ARRAY_SIZE(broxton_rt298_dais); i++) {
 		if (!strncmp(card->dai_link[i].codec_name, "i2c-INT343A:00",
 						I2C_NAME_SIZE)) {
 			if (!strncmp(card->name, "broxton-rt298",
 						PLATFORM_NAME_SIZE)) {
 				card->dai_link[i].name = "SSP5-Codec";
 				card->dai_link[i].cpu_dai_name = "SSP5 Pin";
 			} else if (!strncmp(card->name, "geminilake-rt298",
 						PLATFORM_NAME_SIZE)) {
 				card->dai_link[i].name = "SSP2-Codec";
 				card->dai_link[i].cpu_dai_name = "SSP2 Pin";
 			}
 		}
 	}

 	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;

 	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);

 	card->dev = &pdev->dev;
 	snd_soc_card_set_drvdata(card, ctx);

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

 static const struct platform_device_id bxt_board_ids[] = {
 	{ .name = "bxt_alc298s_i2s", .driver_data =
 				(unsigned long)&broxton_rt298 },
 	{ .name = "glk_alc298s_i2s", .driver_data =
 				(unsigned long)&geminilake_rt298 },
 	{}
 };

 static struct platform_driver broxton_audio = {
 	.probe = broxton_audio_probe,
 	.driver = {
 		.name = "bxt_alc298s_i2s",
 		.pm = &snd_soc_pm_ops,
 	},
 	.id_table = bxt_board_ids,
 };
 module_platform_driver(broxton_audio)

 /* Module information */
 MODULE_AUTHOR("Ramesh Babu <Ramesh.Babu@intel.com>");
 MODULE_AUTHOR("Senthilnathan Veppur <senthilnathanx.veppur@intel.com>");
 MODULE_DESCRIPTION("Intel SST Audio for Broxton");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:bxt_alc298s_i2s");
 MODULE_ALIAS("platform:glk_alc298s_i2s");
	/*
	* Intel Broxton-P I2S Machine Driver
	*
	* Copyright (C) 2014-2016, Intel Corporation. All rights reserved.
	*
	* Modified from:
	* Intel Skylake I2S Machine driver
	*
	* 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/hdac_hdmi.h"
	#include "../../codecs/rt298.h"

	/* Headset jack detection DAPM pins */
	static struct snd_soc_jack broxton_headset;
	static struct snd_soc_jack broxton_hdmi[3];

	struct bxt_hdmi_pcm {
	struct list_head head;
	struct snd_soc_dai *codec_dai;
	int device;
	};

	struct bxt_rt286_private {
	struct list_head hdmi_pcm_list;
	};

	enum {
	BXT_DPCM_AUDIO_PB = 0,
	BXT_DPCM_AUDIO_CP,
	BXT_DPCM_AUDIO_REF_CP,
	BXT_DPCM_AUDIO_DMIC_CP,
	BXT_DPCM_AUDIO_HDMI1_PB,
	BXT_DPCM_AUDIO_HDMI2_PB,
	BXT_DPCM_AUDIO_HDMI3_PB,
	};

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

	static const struct snd_kcontrol_new broxton_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 broxton_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),
	SND_SOC_DAPM_SPK("HDMI1", NULL),
	SND_SOC_DAPM_SPK("HDMI2", NULL),
	SND_SOC_DAPM_SPK("HDMI3", NULL),
	};

	static const struct snd_soc_dapm_route broxton_rt298_map[] = {
	/* speaker */
	{"Speaker", NULL, "SPOR"},
	{"Speaker", NULL, "SPOL"},

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

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

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

	{"HDMI1", NULL, "hif5-0 Output"},
	{"HDMI2", NULL, "hif6-0 Output"},
	{"HDMI2", NULL, "hif7-0 Output"},

	/* CODEC BE connections */
	{ "AIF1 Playback", NULL, "ssp5 Tx"},
	{ "ssp5 Tx", NULL, "codec0_out"},
	{ "ssp5 Tx", NULL, "codec1_out"},

	{ "codec0_in", NULL, "ssp5 Rx" },
	{ "ssp5 Rx", NULL, "AIF1 Capture" },

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

	{ "hifi3", NULL, "iDisp3 Tx"},
	{ "iDisp3 Tx", NULL, "iDisp3_out"},
	{ "hifi2", NULL, "iDisp2 Tx"},
	{ "iDisp2 Tx", NULL, "iDisp2_out"},
	{ "hifi1", NULL, "iDisp1 Tx"},
	{ "iDisp1 Tx", NULL, "iDisp1_out"},
	};

	static const struct snd_soc_dapm_route geminilake_rt298_map[] = {
	/* speaker */
	{"Speaker", NULL, "SPOR"},
	{"Speaker", NULL, "SPOL"},

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

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

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

	{"HDMI1", NULL, "hif5-0 Output"},
	{"HDMI2", NULL, "hif6-0 Output"},
	{"HDMI2", NULL, "hif7-0 Output"},

	/* CODEC BE connections */
	{ "AIF1 Playback", NULL, "ssp2 Tx"},
	{ "ssp2 Tx", NULL, "codec0_out"},
	{ "ssp2 Tx", NULL, "codec1_out"},

	{ "codec0_in", NULL, "ssp2 Rx" },
	{ "ssp2 Rx", NULL, "AIF1 Capture" },

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

	{ "dmic_voice", NULL, "DMIC16k Rx" },
	{ "DMIC16k Rx", NULL, "Capture" },

	{ "hifi3", NULL, "iDisp3 Tx"},
	{ "iDisp3 Tx", NULL, "iDisp3_out"},
	{ "hifi2", NULL, "iDisp2 Tx"},
	{ "iDisp2 Tx", NULL, "iDisp2_out"},
	{ "hifi1", NULL, "iDisp1 Tx"},
	{ "iDisp1 Tx", NULL, "iDisp1_out"},
	};

	static int broxton_rt298_fe_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_dapm_context *dapm;
	struct snd_soc_component *component = rtd->cpu_dai->component;

	dapm = snd_soc_component_get_dapm(component);
	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");

	return 0;
	}

	static int broxton_rt298_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,
	&broxton_headset,
	broxton_headset_pins, ARRAY_SIZE(broxton_headset_pins));

	if (ret)
	return ret;

	rt298_mic_detect(component, &broxton_headset);

	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");

	return 0;
	}

	static int broxton_hdmi_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(rtd->card);
	struct snd_soc_dai *dai = rtd->codec_dai;
	struct bxt_hdmi_pcm *pcm;

	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
	if (!pcm)
	return -ENOMEM;

	pcm->device = BXT_DPCM_AUDIO_HDMI1_PB + dai->id;
	pcm->codec_dai = dai;

	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);

	return 0;
	}

	static int broxton_ssp5_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);
	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);

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

	/* set SSP5 to 24 bit */
	snd_mask_none(fmt);
	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);

	return 0;
	}

	static int broxton_rt298_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, RT298_SCLK_S_PLL,
	19200000, 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 broxton_rt298_ops = {
	.hw_params = broxton_rt298_hw_params,
	};

	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 int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
	struct snd_pcm_hw_params *params)
	{
	struct snd_interval *channels = hw_param_interval(params,
	SNDRV_PCM_HW_PARAM_CHANNELS);
	channels->min = channels->max = 4;

	return 0;
	}

	static const unsigned int channels_dmic[] = {
	1, 2, 3, 4,
	};

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

	static int broxton_dmic_startup(struct snd_pcm_substream *substream)
	{
	struct snd_pcm_runtime *runtime = substream->runtime;

	runtime->hw.channels_max = 4;
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
	&constraints_dmic_channels);

	return snd_pcm_hw_constraint_list(substream->runtime, 0,
	SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
	}

	static const struct snd_soc_ops broxton_dmic_ops = {
	.startup = broxton_dmic_startup,
	};

	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 int bxt_fe_startup(struct snd_pcm_substream *substream)
	{
	struct snd_pcm_runtime *runtime = substream->runtime;

	/*
	* on this platform for PCM device we support:
	* 48Khz
	* stereo
	* 16-bit audio
	*/

	runtime->hw.channels_max = 2;
	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
	&constraints_channels);

	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
	snd_pcm_hw_constraint_list(runtime, 0,
	SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);

	return 0;
	}

	static const struct snd_soc_ops broxton_rt286_fe_ops = {
	.startup = bxt_fe_startup,
	};

	/* broxton digital audio interface glue - connects codec <--> CPU */
	static struct snd_soc_dai_link broxton_rt298_dais[] = {
	/* Front End DAI links */
	[BXT_DPCM_AUDIO_PB] =
	{
	.name = "Bxt Audio Port",
	.stream_name = "Audio",
	.cpu_dai_name = "System Pin",
	.platform_name = "0000:00:0e.0",
	.nonatomic = 1,
	.dynamic = 1,
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.init = broxton_rt298_fe_init,
	.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
	.dpcm_playback = 1,
	.ops = &broxton_rt286_fe_ops,
	},
	[BXT_DPCM_AUDIO_CP] =
	{
	.name = "Bxt Audio Capture Port",
	.stream_name = "Audio Record",
	.cpu_dai_name = "System Pin",
	.platform_name = "0000:00:0e.0",
	.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,
	.ops = &broxton_rt286_fe_ops,
	},
	[BXT_DPCM_AUDIO_REF_CP] =
	{
	.name = "Bxt 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 = "0000:00:0e.0",
	.init = NULL,
	.dpcm_capture = 1,
	.nonatomic = 1,
	.dynamic = 1,
	},
	[BXT_DPCM_AUDIO_DMIC_CP] =
	{
	.name = "Bxt Audio DMIC cap",
	.stream_name = "dmiccap",
	.cpu_dai_name = "DMIC Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.init = NULL,
	.dpcm_capture = 1,
	.nonatomic = 1,
	.dynamic = 1,
	.ops = &broxton_dmic_ops,
	},
	[BXT_DPCM_AUDIO_HDMI1_PB] =
	{
	.name = "Bxt HDMI Port1",
	.stream_name = "Hdmi1",
	.cpu_dai_name = "HDMI1 Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.dpcm_playback = 1,
	.init = NULL,
	.nonatomic = 1,
	.dynamic = 1,
	},
	[BXT_DPCM_AUDIO_HDMI2_PB] =
	{
	.name = "Bxt HDMI Port2",
	.stream_name = "Hdmi2",
	.cpu_dai_name = "HDMI2 Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.dpcm_playback = 1,
	.init = NULL,
	.nonatomic = 1,
	.dynamic = 1,
	},
	[BXT_DPCM_AUDIO_HDMI3_PB] =
	{
	.name = "Bxt HDMI Port3",
	.stream_name = "Hdmi3",
	.cpu_dai_name = "HDMI3 Pin",
	.codec_name = "snd-soc-dummy",
	.codec_dai_name = "snd-soc-dummy-dai",
	.platform_name = "0000:00:0e.0",
	.dpcm_playback = 1,
	.init = NULL,
	.nonatomic = 1,
	.dynamic = 1,
	},
	/* Back End DAI links */
	{
	/* SSP5 - Codec */
	.name = "SSP5-Codec",
	.id = 0,
	.cpu_dai_name = "SSP5 Pin",
	.platform_name = "0000:00:0e.0",
	.no_pcm = 1,
	.codec_name = "i2c-INT343A:00",
	.codec_dai_name = "rt298-aif1",
	.init = broxton_rt298_codec_init,
	.dai_fmt = SND_SOC_DAIFMT_DSP_A \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ignore_pmdown_time = 1,
	.be_hw_params_fixup = broxton_ssp5_fixup,
	.ops = &broxton_rt298_ops,
	.dpcm_playback = 1,
	.dpcm_capture = 1,
	},
	{
	.name = "dmic01",
	.id = 1,
	.cpu_dai_name = "DMIC01 Pin",
	.codec_name = "dmic-codec",
	.codec_dai_name = "dmic-hifi",
	.platform_name = "0000:00:0e.0",
	.be_hw_params_fixup = broxton_dmic_fixup,
	.ignore_suspend = 1,
	.dpcm_capture = 1,
	.no_pcm = 1,
	},
	{
	.name = "dmic16k",
	.id = 2,
	.cpu_dai_name = "DMIC16k Pin",
	.codec_name = "dmic-codec",
	.codec_dai_name = "dmic-hifi",
	.platform_name = "0000:00:0e.0",
	.be_hw_params_fixup = broxton_dmic_fixup,
	.ignore_suspend = 1,
	.dpcm_capture = 1,
	.no_pcm = 1,
	},
	{
	.name = "iDisp1",
	.id = 3,
	.cpu_dai_name = "iDisp1 Pin",
	.codec_name = "ehdaudio0D2",
	.codec_dai_name = "intel-hdmi-hifi1",
	.platform_name = "0000:00:0e.0",
	.init = broxton_hdmi_init,
	.dpcm_playback = 1,
	.no_pcm = 1,
	},
	{
	.name = "iDisp2",
	.id = 4,
	.cpu_dai_name = "iDisp2 Pin",
	.codec_name = "ehdaudio0D2",
	.codec_dai_name = "intel-hdmi-hifi2",
	.platform_name = "0000:00:0e.0",
	.init = broxton_hdmi_init,
	.dpcm_playback = 1,
	.no_pcm = 1,
	},
	{
	.name = "iDisp3",
	.id = 5,
	.cpu_dai_name = "iDisp3 Pin",
	.codec_name = "ehdaudio0D2",
	.codec_dai_name = "intel-hdmi-hifi3",
	.platform_name = "0000:00:0e.0",
	.init = broxton_hdmi_init,
	.dpcm_playback = 1,
	.no_pcm = 1,
	},
	};

	#define NAME_SIZE 32
	static int bxt_card_late_probe(struct snd_soc_card *card)
	{
	struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(card);
	struct bxt_hdmi_pcm *pcm;
	struct snd_soc_component *component = NULL;
	int err, i = 0;
	char jack_name[NAME_SIZE];

	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
	component = pcm->codec_dai->component;
	snprintf(jack_name, sizeof(jack_name),
	"HDMI/DP, pcm=%d Jack", pcm->device);
	err = snd_soc_card_jack_new(card, jack_name,
	SND_JACK_AVOUT, &broxton_hdmi[i],
	NULL, 0);

	if (err)
	return err;

	err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
	&broxton_hdmi[i]);
	if (err < 0)
	return err;

	i++;
	}

	if (!component)
	return -EINVAL;

	return hdac_hdmi_jack_port_init(component, &card->dapm);
	}


	/* broxton audio machine driver for SPT + RT298S */
	static struct snd_soc_card broxton_rt298 = {
	.name = "broxton-rt298",
	.owner = THIS_MODULE,
	.dai_link = broxton_rt298_dais,
	.num_links = ARRAY_SIZE(broxton_rt298_dais),
	.controls = broxton_controls,
	.num_controls = ARRAY_SIZE(broxton_controls),
	.dapm_widgets = broxton_widgets,
	.num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
	.dapm_routes = broxton_rt298_map,
	.num_dapm_routes = ARRAY_SIZE(broxton_rt298_map),
	.fully_routed = true,
	.late_probe = bxt_card_late_probe,

	};

	static struct snd_soc_card geminilake_rt298 = {
	.name = "geminilake-rt298",
	.owner = THIS_MODULE,
	.dai_link = broxton_rt298_dais,
	.num_links = ARRAY_SIZE(broxton_rt298_dais),
	.controls = broxton_controls,
	.num_controls = ARRAY_SIZE(broxton_controls),
	.dapm_widgets = broxton_widgets,
	.num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
	.dapm_routes = geminilake_rt298_map,
	.num_dapm_routes = ARRAY_SIZE(geminilake_rt298_map),
	.fully_routed = true,
	.late_probe = bxt_card_late_probe,
	};

	static int broxton_audio_probe(struct platform_device *pdev)
	{
	struct bxt_rt286_private *ctx;
	struct snd_soc_card *card =
	(struct snd_soc_card *)pdev->id_entry->driver_data;
	int i;

	for (i = 0; i < ARRAY_SIZE(broxton_rt298_dais); i++) {
	if (!strncmp(card->dai_link[i].codec_name, "i2c-INT343A:00",
	I2C_NAME_SIZE)) {
	if (!strncmp(card->name, "broxton-rt298",
	PLATFORM_NAME_SIZE)) {
	card->dai_link[i].name = "SSP5-Codec";
	card->dai_link[i].cpu_dai_name = "SSP5 Pin";
	} else if (!strncmp(card->name, "geminilake-rt298",
	PLATFORM_NAME_SIZE)) {
	card->dai_link[i].name = "SSP2-Codec";
	card->dai_link[i].cpu_dai_name = "SSP2 Pin";
	}
	}
	}

	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
	if (!ctx)
	return -ENOMEM;

	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);

	card->dev = &pdev->dev;
	snd_soc_card_set_drvdata(card, ctx);

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

	static const struct platform_device_id bxt_board_ids[] = {
	{ .name = "bxt_alc298s_i2s", .driver_data =
	(unsigned long)&broxton_rt298 },
	{ .name = "glk_alc298s_i2s", .driver_data =
	(unsigned long)&geminilake_rt298 },
	{}
	};

	static struct platform_driver broxton_audio = {
	.probe = broxton_audio_probe,
	.driver = {
	.name = "bxt_alc298s_i2s",
	.pm = &snd_soc_pm_ops,
	},
	.id_table = bxt_board_ids,
	};
	module_platform_driver(broxton_audio)

	/* Module information */
	MODULE_AUTHOR("Ramesh Babu <Ramesh.Babu@intel.com>");
	MODULE_AUTHOR("Senthilnathan Veppur <senthilnathanx.veppur@intel.com>");
	MODULE_DESCRIPTION("Intel SST Audio for Broxton");
	MODULE_LICENSE("GPL v2");
	MODULE_ALIAS("platform:bxt_alc298s_i2s");
	MODULE_ALIAS("platform:glk_alc298s_i2s");