ASoC: Intel: Add Cherrytrail & Braswell machine driver cht_bsw_max98090_ti (17119a46) · Commits · e / devices / android_kernel_teracube_2e

sound/soc/intel/Kconfig

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		@@ -121,3 +121,15 @@ config SND_SOC_INTEL_CHT_BSW_RT5645_MACH
		This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
		platforms with RT5645 audio codec.
		If unsure select "N".

		config SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH
		tristate "ASoC Audio driver for Intel Cherrytrail & Braswell with MAX98090 & TI codec"
		depends on X86_INTEL_LPSS
		select SND_SOC_MAX98090
		select SND_SOC_TS3A227E
		select SND_SST_MFLD_PLATFORM
		select SND_SST_IPC_ACPI
		help
		This adds support for ASoC machine driver for Intel(R) Cherrytrail & Braswell
		platforms with MAX98090 audio codec it also can support TI jack chip as aux device.
		If unsure select "N".

sound/soc/intel/boards/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -5,6 +5,7 @@ snd-soc-sst-broadwell-objs := broadwell.o
		snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o
		snd-soc-sst-cht-bsw-rt5672-objs := cht_bsw_rt5672.o
		snd-soc-sst-cht-bsw-rt5645-objs := cht_bsw_rt5645.o
		snd-soc-sst-cht-bsw-max98090_ti-objs := cht_bsw_max98090_ti.o

		obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o
		obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o
		@@ -13,3 +14,4 @@ obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.o
		obj-$(CONFIG_SND_SOC_INTEL_BYTCR_RT5640_MACH) += snd-soc-sst-bytcr-rt5640.o
		obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH) += snd-soc-sst-cht-bsw-rt5672.o
		obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH) += snd-soc-sst-cht-bsw-rt5645.o
		obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH) += snd-soc-sst-cht-bsw-max98090_ti.o

sound/soc/intel/boards/cht_bsw_max98090_ti.c

0 → 100644

+320 −0

Original line number	Diff line number	Diff line
		/*
		* cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based
		* platforms Cherrytrail and Braswell, with max98090 & TI codec.
		*
		* Copyright (C) 2015 Intel Corp
		* Author: Fang, Yang A <yang.a.fang@intel.com>
		* This file is modified from cht_bsw_rt5645.c
		* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; version 2 of the License.
		*
		* 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 <linux/slab.h>
		#include <linux/acpi.h>
		#include <sound/pcm.h>
		#include <sound/pcm_params.h>
		#include <sound/soc.h>
		#include <sound/jack.h>
		#include "../../codecs/max98090.h"
		#include "../atom/sst-atom-controls.h"
		#include "../../codecs/ts3a227e.h"

		#define CHT_PLAT_CLK_3_HZ 19200000
		#define CHT_CODEC_DAI "HiFi"

		struct cht_mc_private {
		struct snd_soc_jack jack;
		bool ts3a227e_present;
		};

		static inline struct snd_soc_dai cht_get_codec_dai(struct snd_soc_card card)
		{
		int i;

		for (i = 0; i < card->num_rtd; i++) {
		struct snd_soc_pcm_runtime *rtd;

		rtd = card->rtd + i;
		if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
		strlen(CHT_CODEC_DAI)))
		return rtd->codec_dai;
		}
		return NULL;
		}

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

		static const struct snd_soc_dapm_route cht_audio_map[] = {
		{"IN34", NULL, "Headset Mic"},
		{"Headset Mic", NULL, "MICBIAS"},
		{"DMICL", NULL, "Int Mic"},
		{"Headphone", NULL, "HPL"},
		{"Headphone", NULL, "HPR"},
		{"Ext Spk", NULL, "SPKL"},
		{"Ext Spk", NULL, "SPKR"},
		{"AIF1 Playback", NULL, "ssp2 Tx"},
		{"ssp2 Tx", NULL, "codec_out0"},
		{"ssp2 Tx", NULL, "codec_out1"},
		{"codec_in0", NULL, "ssp2 Rx" },
		{"codec_in1", NULL, "ssp2 Rx" },
		{"ssp2 Rx", NULL, "AIF1 Capture"},
		};

		static const struct snd_kcontrol_new cht_mc_controls[] = {
		SOC_DAPM_PIN_SWITCH("Headphone"),
		SOC_DAPM_PIN_SWITCH("Headset Mic"),
		SOC_DAPM_PIN_SWITCH("Int Mic"),
		SOC_DAPM_PIN_SWITCH("Ext Spk"),
		};

		static int cht_aif1_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, M98090_REG_SYSTEM_CLOCK,
		CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
		if (ret < 0) {
		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
		return ret;
		}

		return 0;
		}

		static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
		{
		int ret;
		int jack_type;
		struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
		struct snd_soc_jack *jack = &ctx->jack;

		/**
		* TI supports 4 butons headset detection
		* KEY_MEDIA
		* KEY_VOICECOMMAND
		* KEY_VOLUMEUP
		* KEY_VOLUMEDOWN
		*/
		if (ctx->ts3a227e_present)
		jack_type = SND_JACK_HEADPHONE \| SND_JACK_MICROPHONE \|
		SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
		SND_JACK_BTN_2 \| SND_JACK_BTN_3;
		else
		jack_type = SND_JACK_HEADPHONE \| SND_JACK_MICROPHONE;

		ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
		jack_type, jack, NULL, 0);

		if (ret) {
		dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
		return ret;
		}

		return ret;
		}

		static int cht_codec_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);
		int ret = 0;
		unsigned int fmt = 0;

		ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
		if (ret < 0) {
		dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
		return ret;
		}

		fmt = SND_SOC_DAIFMT_LEFT_J \| SND_SOC_DAIFMT_NB_NF
		\| SND_SOC_DAIFMT_CBS_CFS;

		ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
		if (ret < 0) {
		dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
		return ret;
		}

		/* The DSP will covert the FE rate to 48k, stereo, 24bits */
		rate->min = rate->max = 48000;
		channels->min = channels->max = 2;

		/* set SSP2 to 24-bit */
		snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
		SNDRV_PCM_HW_PARAM_FIRST_MASK],
		SNDRV_PCM_FORMAT_S24_LE);
		return 0;
		}

		static unsigned int rates_48000[] = {
		48000,
		};

		static struct snd_pcm_hw_constraint_list constraints_48000 = {
		.count = ARRAY_SIZE(rates_48000),
		.list = rates_48000,
		};

		static int cht_aif1_startup(struct snd_pcm_substream *substream)
		{
		return snd_pcm_hw_constraint_list(substream->runtime, 0,
		SNDRV_PCM_HW_PARAM_RATE,
		&constraints_48000);
		}

		static int cht_max98090_headset_init(struct snd_soc_component *component)
		{
		struct snd_soc_card *card = component->card;
		struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);

		return ts3a227e_enable_jack_detect(component, &ctx->jack);
		}

		static struct snd_soc_ops cht_aif1_ops = {
		.startup = cht_aif1_startup,
		};

		static struct snd_soc_ops cht_be_ssp2_ops = {
		.hw_params = cht_aif1_hw_params,
		};

		static struct snd_soc_aux_dev cht_max98090_headset_dev = {
		.name = "Headset Chip",
		.init = cht_max98090_headset_init,
		.codec_name = "i2c-104C227E:00",
		};

		static struct snd_soc_dai_link cht_dailink[] = {
		[MERR_DPCM_AUDIO] = {
		.name = "Audio Port",
		.stream_name = "Audio",
		.cpu_dai_name = "media-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.nonatomic = true,
		.dynamic = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &cht_aif1_ops,
		},
		[MERR_DPCM_COMPR] = {
		.name = "Compressed Port",
		.stream_name = "Compress",
		.cpu_dai_name = "compress-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		},
		/* back ends */
		{
		.name = "SSP2-Codec",
		.be_id = 1,
		.cpu_dai_name = "ssp2-port",
		.platform_name = "sst-mfld-platform",
		.no_pcm = 1,
		.codec_dai_name = "HiFi",
		.codec_name = "i2c-193C9890:00",
		.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
		\| SND_SOC_DAIFMT_CBS_CFS,
		.init = cht_codec_init,
		.be_hw_params_fixup = cht_codec_fixup,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &cht_be_ssp2_ops,
		},
		};

		/* SoC card */
		static struct snd_soc_card snd_soc_card_cht = {
		.name = "chtmax98090",
		.dai_link = cht_dailink,
		.num_links = ARRAY_SIZE(cht_dailink),
		.aux_dev = &cht_max98090_headset_dev,
		.num_aux_devs = 1,
		.dapm_widgets = cht_dapm_widgets,
		.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
		.dapm_routes = cht_audio_map,
		.num_dapm_routes = ARRAY_SIZE(cht_audio_map),
		.controls = cht_mc_controls,
		.num_controls = ARRAY_SIZE(cht_mc_controls),
		};

		static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level,
		void context, void *ret)
		{
		(bool )context = true;
		return AE_OK;
		}

		static int snd_cht_mc_probe(struct platform_device *pdev)
		{
		int ret_val = 0;
		bool found = false;
		struct cht_mc_private *drv;

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

		if (ACPI_SUCCESS(acpi_get_devices(
		"104C227E",
		snd_acpi_codec_match,
		&found, NULL)) && found) {
		drv->ts3a227e_present = true;
		} else {
		/* no need probe TI jack detection chip */
		snd_soc_card_cht.aux_dev = NULL;
		snd_soc_card_cht.num_aux_devs = 0;
		drv->ts3a227e_present = false;
		}

		/* register the soc card */
		snd_soc_card_cht.dev = &pdev->dev;
		snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
		ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
		if (ret_val) {
		dev_err(&pdev->dev,
		"snd_soc_register_card failed %d\n", ret_val);
		return ret_val;
		}
		platform_set_drvdata(pdev, &snd_soc_card_cht);
		return ret_val;
		}

		static struct platform_driver snd_cht_mc_driver = {
		.driver = {
		.name = "cht-bsw-max98090",
		},
		.probe = snd_cht_mc_probe,
		};

		module_platform_driver(snd_cht_mc_driver)

		MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
		MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
		MODULE_LICENSE("GPL v2");
		MODULE_ALIAS("platform:cht-bsw-max98090");