Unverified Commit f40ed2e8 authored by Pierre-Louis Bossart's avatar Pierre-Louis Bossart Committed by Mark Brown
Browse files

ASoC: Intel: sof_pcm512x: add support for SOF platforms with pcm512x 



Add support for multiple platforms, e.g. Apollolake based, using the
pcm512x audio codec.

The SOF developers and CI rely on the Up^2 and Hifiberry DAC+ boards
based on this codec for tests.

Signed-off-by: default avatarKai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: default avatarPan Xiuli <xiuli.pan@linux.intel.com>
Signed-off-by: default avatarRanjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: default avatarGuennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Signed-off-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200129223603.2569-2-pierre-louis.bossart@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 99b4f439

sound/soc/intel/boards/Kconfig

+14 −0
Original line number Diff line number Diff line
@@ -457,6 +457,20 @@ config SND_SOC_INTEL_SOF_RT5682_MACH 
	   with rt5682 codec.

	   Say Y if you have such a device.

	   If unsure select "N".



config SND_SOC_INTEL_SOF_PCM512x_MACH

	tristate "SOF with TI PCM512x codec"

	depends on I2C && ACPI

	depends on (SND_SOC_SOF_HDA_AUDIO_CODEC && (MFD_INTEL_LPSS || COMPILE_TEST)) ||\

		   (SND_SOC_SOF_BAYTRAIL && (X86_INTEL_LPSS || COMPILE_TEST))

	select SND_SOC_PCM512x_I2C

	select SND_HDA_CODEC_HDMI if SND_SOC_SOF_HDA_AUDIO_CODEC

	help

	  This adds support for ASoC machine driver for SOF platforms

	  with TI PCM512x I2S audio codec.

	  Say Y or m if you have such a device.

	  If unsure select "N".



endif ## SND_SOC_SOF_HDA_LINK || SND_SOC_SOF_BAYTRAIL



if (SND_SOC_SOF_COMETLAKE_LP && SND_SOC_SOF_HDA_LINK)

sound/soc/intel/boards/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ snd-soc-sst-bdw-rt5677-mach-objs := bdw-rt5677.o 
snd-soc-sst-broadwell-objs := broadwell.o

snd-soc-sst-bxt-da7219_max98357a-objs := bxt_da7219_max98357a.o hda_dsp_common.o

snd-soc-sst-bxt-rt298-objs := bxt_rt298.o hda_dsp_common.o

snd-soc-sst-sof-pcm512x-objs := sof_pcm512x.o hda_dsp_common.o

snd-soc-sst-glk-rt5682_max98357a-objs := glk_rt5682_max98357a.o hda_dsp_common.o

snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o

snd-soc-sst-bytcr-rt5651-objs := bytcr_rt5651.o
@@ -37,6 +38,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o 
obj-$(CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH) += snd-soc-sst-byt-max98090-mach.o

obj-$(CONFIG_SND_SOC_INTEL_BXT_DA7219_MAX98357A_COMMON) += snd-soc-sst-bxt-da7219_max98357a.o

obj-$(CONFIG_SND_SOC_INTEL_BXT_RT298_MACH) += snd-soc-sst-bxt-rt298.o

obj-$(CONFIG_SND_SOC_INTEL_SOF_PCM512x_MACH) += snd-soc-sst-sof-pcm512x.o

obj-$(CONFIG_SND_SOC_INTEL_GLK_RT5682_MAX98357A_MACH) += snd-soc-sst-glk-rt5682_max98357a.o

obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.o

obj-$(CONFIG_SND_SOC_INTEL_BDW_RT5650_MACH) += snd-soc-sst-bdw-rt5650-mach.o

sound/soc/intel/boards/sof_pcm512x.c

0 → 100644
+428 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

// Copyright(c) 2018-2020 Intel Corporation.



/*

 * Intel SOF Machine Driver for Intel platforms with TI PCM512x codec,

 * e.g. Up or Up2 with Hifiberry DAC+ HAT

 */

#include <linux/clk.h>

#include <linux/dmi.h>

#include <linux/i2c.h>

#include <linux/input.h>

#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/types.h>

#include <sound/core.h>

#include <sound/jack.h>

#include <sound/pcm.h>

#include <sound/pcm_params.h>

#include <sound/soc.h>

#include <sound/soc-acpi.h>

#include "../../codecs/pcm512x.h"

#include "../common/soc-intel-quirks.h"

#include "hda_dsp_common.h"



#define NAME_SIZE 32



#define SOF_PCM512X_SSP_CODEC(quirk)		((quirk) & GENMASK(3, 0))

#define SOF_PCM512X_SSP_CODEC_MASK			(GENMASK(3, 0))



/* Default: SSP5 */

static unsigned long sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(5);



static bool is_legacy_cpu;



struct sof_hdmi_pcm {

	struct list_head head;

	struct snd_soc_dai *codec_dai;

	int device;

};



struct sof_card_private {

	struct list_head hdmi_pcm_list;

};



static int sof_pcm512x_quirk_cb(const struct dmi_system_id *id)

{

	sof_pcm512x_quirk = (unsigned long)id->driver_data;

	return 1;

}



static const struct dmi_system_id sof_pcm512x_quirk_table[] = {

	{

		.callback = sof_pcm512x_quirk_cb,

		.matches = {

			DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),

			DMI_MATCH(DMI_PRODUCT_NAME, "UP-CHT01"),

		},

		.driver_data = (void *)(SOF_PCM512X_SSP_CODEC(2)),

	},

	{}

};



static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd)

{

	struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);

	struct snd_soc_dai *dai = rtd->codec_dai;

	struct sof_hdmi_pcm *pcm;



	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);

	if (!pcm)

		return -ENOMEM;



	/* dai_link id is 1:1 mapped to the PCM device */

	pcm->device = rtd->dai_link->id;

	pcm->codec_dai = dai;



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



	return 0;

}



static int sof_pcm512x_codec_init(struct snd_soc_pcm_runtime *rtd)

{

	struct snd_soc_component *codec = rtd->codec_dai->component;



	snd_soc_component_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08);

	snd_soc_component_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);

	snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,

				      0x08, 0x08);



	return 0;

}



static int aif1_startup(struct snd_pcm_substream *substream)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_component *codec = rtd->codec_dai->component;



	snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,

				      0x08, 0x08);



	return 0;

}



static void aif1_shutdown(struct snd_pcm_substream *substream)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_component *codec = rtd->codec_dai->component;



	snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,

				      0x08, 0x00);

}



static const struct snd_soc_ops sof_pcm512x_ops = {

	.startup = aif1_startup,

	.shutdown = aif1_shutdown,

};



static struct snd_soc_dai_link_component platform_component[] = {

	{

		/* name might be overridden during probe */

		.name = "0000:00:1f.3"

	}

};



#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)

static int sof_card_late_probe(struct snd_soc_card *card)

{

	struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);

	struct sof_hdmi_pcm *pcm;



	/* HDMI is not supported by SOF on Baytrail/CherryTrail */

	if (is_legacy_cpu)

		return 0;



	if (list_empty(&ctx->hdmi_pcm_list))

		return -EINVAL;



	pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, head);



	return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component);

}

#else

static int sof_card_late_probe(struct snd_soc_card *card)

{

	return 0;

}

#endif



static const struct snd_kcontrol_new sof_controls[] = {

	SOC_DAPM_PIN_SWITCH("Ext Spk"),

};



static const struct snd_soc_dapm_widget sof_widgets[] = {

	SND_SOC_DAPM_SPK("Ext Spk", NULL),

};



static const struct snd_soc_dapm_widget dmic_widgets[] = {

	SND_SOC_DAPM_MIC("SoC DMIC", NULL),

};



static const struct snd_soc_dapm_route sof_map[] = {

	/* Speaker */

	{"Ext Spk", NULL, "OUTR"},

	{"Ext Spk", NULL, "OUTL"},

};



static const struct snd_soc_dapm_route dmic_map[] = {

	/* digital mics */

	{"DMic", NULL, "SoC DMIC"},

};



static int dmic_init(struct snd_soc_pcm_runtime *rtd)

{

	struct snd_soc_card *card = rtd->card;

	int ret;



	ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,

					ARRAY_SIZE(dmic_widgets));

	if (ret) {

		dev_err(card->dev, "DMic widget addition failed: %d\n", ret);

		/* Don't need to add routes if widget addition failed */

		return ret;

	}



	ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,

				      ARRAY_SIZE(dmic_map));



	if (ret)

		dev_err(card->dev, "DMic map addition failed: %d\n", ret);



	return ret;

}



/* sof audio machine driver for pcm512x codec */

static struct snd_soc_card sof_audio_card_pcm512x = {

	.name = "pcm512x",

	.owner = THIS_MODULE,

	.controls = sof_controls,

	.num_controls = ARRAY_SIZE(sof_controls),

	.dapm_widgets = sof_widgets,

	.num_dapm_widgets = ARRAY_SIZE(sof_widgets),

	.dapm_routes = sof_map,

	.num_dapm_routes = ARRAY_SIZE(sof_map),

	.fully_routed = true,

	.late_probe = sof_card_late_probe,

};



SND_SOC_DAILINK_DEF(pcm512x_component,

	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-104C5122:00", "pcm512x-hifi")));

SND_SOC_DAILINK_DEF(dmic_component,

	DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));



static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,

							  int ssp_codec,

							  int dmic_be_num,

							  int hdmi_num)

{

	struct snd_soc_dai_link_component *idisp_components;

	struct snd_soc_dai_link_component *cpus;

	struct snd_soc_dai_link *links;

	int i, id = 0;



	links = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,

			sizeof(struct snd_soc_dai_link), GFP_KERNEL);

	cpus = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,

			sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);

	if (!links || !cpus)

		goto devm_err;



	/* codec SSP */

	links[id].name = devm_kasprintf(dev, GFP_KERNEL,

					"SSP%d-Codec", ssp_codec);

	if (!links[id].name)

		goto devm_err;



	links[id].id = id;

	links[id].codecs = pcm512x_component;

	links[id].num_codecs = ARRAY_SIZE(pcm512x_component);

	links[id].platforms = platform_component;

	links[id].num_platforms = ARRAY_SIZE(platform_component);

	links[id].init = sof_pcm512x_codec_init;

	links[id].ops = &sof_pcm512x_ops;

	links[id].nonatomic = true;

	links[id].dpcm_playback = 1;

	/*

	 * capture only supported with specific versions of the Hifiberry DAC+

	 * links[id].dpcm_capture = 1;

	 */

	links[id].no_pcm = 1;

	links[id].cpus = &cpus[id];

	links[id].num_cpus = 1;

	if (is_legacy_cpu) {

		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,

							  "ssp%d-port",

							  ssp_codec);

		if (!links[id].cpus->dai_name)

			goto devm_err;

	} else {

		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,

							  "SSP%d Pin",

							  ssp_codec);

		if (!links[id].cpus->dai_name)

			goto devm_err;

	}

	id++;



	/* dmic */

	if (dmic_be_num > 0) {

		/* at least we have dmic01 */

		links[id].name = "dmic01";

		links[id].cpus = &cpus[id];

		links[id].cpus->dai_name = "DMIC01 Pin";

		links[id].init = dmic_init;

		if (dmic_be_num > 1) {

			/* set up 2 BE links at most */

			links[id + 1].name = "dmic16k";

			links[id + 1].cpus = &cpus[id + 1];

			links[id + 1].cpus->dai_name = "DMIC16k Pin";

			dmic_be_num = 2;

		}

	}



	for (i = 0; i < dmic_be_num; i++) {

		links[id].id = id;

		links[id].num_cpus = 1;

		links[id].codecs = dmic_component;

		links[id].num_codecs = ARRAY_SIZE(dmic_component);

		links[id].platforms = platform_component;

		links[id].num_platforms = ARRAY_SIZE(platform_component);

		links[id].ignore_suspend = 1;

		links[id].dpcm_capture = 1;

		links[id].no_pcm = 1;

		id++;

	}



	/* HDMI */

	if (hdmi_num > 0) {

		idisp_components = devm_kcalloc(dev, hdmi_num,

				sizeof(struct snd_soc_dai_link_component),

				GFP_KERNEL);

		if (!idisp_components)

			goto devm_err;

	}

	for (i = 1; i <= hdmi_num; i++) {

		links[id].name = devm_kasprintf(dev, GFP_KERNEL,

						"iDisp%d", i);

		if (!links[id].name)

			goto devm_err;



		links[id].id = id;

		links[id].cpus = &cpus[id];

		links[id].num_cpus = 1;

		links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,

							  "iDisp%d Pin", i);

		if (!links[id].cpus->dai_name)

			goto devm_err;



		idisp_components[i - 1].name = "ehdaudio0D2";

		idisp_components[i - 1].dai_name = devm_kasprintf(dev,

								  GFP_KERNEL,

								  "intel-hdmi-hifi%d",

								  i);

		if (!idisp_components[i - 1].dai_name)

			goto devm_err;



		links[id].codecs = &idisp_components[i - 1];

		links[id].num_codecs = 1;

		links[id].platforms = platform_component;

		links[id].num_platforms = ARRAY_SIZE(platform_component);

		links[id].init = sof_hdmi_init;

		links[id].dpcm_playback = 1;

		links[id].no_pcm = 1;

		id++;

	}



	return links;

devm_err:

	return NULL;

}



static int sof_audio_probe(struct platform_device *pdev)

{

	struct snd_soc_dai_link *dai_links;

	struct snd_soc_acpi_mach *mach;

	struct sof_card_private *ctx;

	int dmic_be_num, hdmi_num;

	int ret, ssp_codec;



	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);

	if (!ctx)

		return -ENOMEM;



	hdmi_num = 0;

	if (soc_intel_is_byt() || soc_intel_is_cht()) {

		is_legacy_cpu = true;

		dmic_be_num = 0;

		/* default quirk for legacy cpu */

		sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(2);

	} else {

		dmic_be_num = 2;

#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)

		hdmi_num = 3;

#endif

	}



	dmi_check_system(sof_pcm512x_quirk_table);



	dev_dbg(&pdev->dev, "sof_pcm512x_quirk = %lx\n", sof_pcm512x_quirk);



	ssp_codec = sof_pcm512x_quirk & SOF_PCM512X_SSP_CODEC_MASK;



	/* compute number of dai links */

	sof_audio_card_pcm512x.num_links = 1 + dmic_be_num + hdmi_num;



	dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec,

					      dmic_be_num, hdmi_num);

	if (!dai_links)

		return -ENOMEM;



	sof_audio_card_pcm512x.dai_link = dai_links;



	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);



	sof_audio_card_pcm512x.dev = &pdev->dev;

	mach = (&pdev->dev)->platform_data;



	/* set platform name for each dailink */

	ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_pcm512x,

						    mach->mach_params.platform);

	if (ret)

		return ret;



	snd_soc_card_set_drvdata(&sof_audio_card_pcm512x, ctx);



	return devm_snd_soc_register_card(&pdev->dev,

					  &sof_audio_card_pcm512x);

}



static int sof_pcm512x_remove(struct platform_device *pdev)

{

	struct snd_soc_card *card = platform_get_drvdata(pdev);

	struct snd_soc_component *component = NULL;



	for_each_card_components(card, component) {

		if (!strcmp(component->name, pcm512x_component[0].name)) {

			snd_soc_component_set_jack(component, NULL, NULL);

			break;

		}

	}



	return 0;

}



static struct platform_driver sof_audio = {

	.probe = sof_audio_probe,

	.remove = sof_pcm512x_remove,

	.driver = {

		.name = "sof_pcm512x",

		.pm = &snd_soc_pm_ops,

	},

};

module_platform_driver(sof_audio)



MODULE_DESCRIPTION("ASoC Intel(R) SOF + PCM512x Machine driver");

MODULE_AUTHOR("Pierre-Louis Bossart");

MODULE_LICENSE("GPL v2");

MODULE_ALIAS("platform:sof_pcm512x");

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