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Commit 1f458d53 authored by Garlic Tseng's avatar Garlic Tseng Committed by Mark Brown
Browse files

ASoC: mediatek: Add mt2701-cs42448 driver and config option. 



Add machine driver and config option for MT2701.

Signed-off-by: default avatarGarlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 43a6a7e7

sound/soc/mediatek/Kconfig

+21 −0
Original line number Diff line number Diff line 
config SND_SOC_MEDIATEK

	tristate



config SND_SOC_MT2701

	tristate "ASoC support for Mediatek MT2701 chip"

	depends on ARCH_MEDIATEK

	select SND_SOC_MEDIATEK

	help

	  This adds ASoC driver for Mediatek MT2701 boards

	  that can be used with other codecs.

	  Select Y if you have such device.

	  If unsure select "N".



config SND_SOC_MT2701_CS42448

	tristate "ASoc Audio driver for MT2701 with CS42448 codec"

	depends on SND_SOC_MT2701

	select SND_SOC_CS42XX8_I2C

	select SND_SOC_BT_SCO

	help

	  This adds ASoC driver for Mediatek MT2701 boards

	  with the CS42448 codecs.

	  Select Y if you have such device.

	  If unsure select "N".



config SND_SOC_MT8173

	tristate "ASoC support for Mediatek MT8173 chip"

	depends on ARCH_MEDIATEK

sound/soc/mediatek/Makefile

+1 −0
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obj-$(CONFIG_SND_SOC_MEDIATEK) += common/

obj-$(CONFIG_SND_SOC_MT2701) += mt2701/

obj-$(CONFIG_SND_SOC_MT8173) += mt8173/

sound/soc/mediatek/mt2701/Makefile

0 → 100644
+19 −0
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#

# Copyright (C) 2015 MediaTek Inc.

#

# 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.

#



# platform driver

snd-soc-mt2701-afe-objs := mt2701-afe-pcm.o mt2701-afe-clock-ctrl.o

obj-$(CONFIG_SND_SOC_MT2701) += snd-soc-mt2701-afe.o



# machine driver

obj-$(CONFIG_SND_SOC_MT2701_CS42448) += mt2701-cs42448.o

sound/soc/mediatek/mt2701/mt2701-cs42448.c

0 → 100644
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/*

 * mt2701-cs42448.c  --  MT2701 CS42448 ALSA SoC machine driver

 *

 * Copyright (c) 2016 MediaTek Inc.

 * Author: Ir Lian <ir.lian@mediatek.com>

 *              Garlic Tseng <garlic.tseng@mediatek.com>

 *

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only 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 <sound/soc.h>

#include <linux/delay.h>

#include <linux/gpio.h>

#include <linux/pinctrl/consumer.h>

#include <linux/of_gpio.h>



#include "mt2701-afe-common.h"



struct mt2701_cs42448_private {

	int i2s1_in_mux;

	int i2s1_in_mux_gpio_sel_1;

	int i2s1_in_mux_gpio_sel_2;

};



static const char * const i2sin_mux_switch_text[] = {

	"ADC_SDOUT2",

	"ADC_SDOUT3",

	"I2S_IN_1",

	"I2S_IN_2",

};



static const struct soc_enum i2sin_mux_enum =

	SOC_ENUM_SINGLE_EXT(4, i2sin_mux_switch_text);



static int mt2701_cs42448_i2sin1_mux_get(struct snd_kcontrol *kcontrol,

					 struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

	struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card);



	ucontrol->value.integer.value[0] = priv->i2s1_in_mux;

	return 0;

}



static int mt2701_cs42448_i2sin1_mux_set(struct snd_kcontrol *kcontrol,

					 struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

	struct mt2701_cs42448_private *priv = snd_soc_card_get_drvdata(card);



	if (ucontrol->value.integer.value[0] == priv->i2s1_in_mux)

		return 0;



	switch (ucontrol->value.integer.value[0]) {

	case 0:

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0);

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0);

		break;

	case 1:

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1);

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 0);

		break;

	case 2:

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 0);

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1);

		break;

	case 3:

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_1, 1);

		gpio_set_value(priv->i2s1_in_mux_gpio_sel_2, 1);

		break;

	default:

		dev_warn(card->dev, "%s invalid setting\n", __func__);

	}



	priv->i2s1_in_mux = ucontrol->value.integer.value[0];

	return 0;

}



static const struct snd_soc_dapm_widget

			mt2701_cs42448_asoc_card_dapm_widgets[] = {

	SND_SOC_DAPM_LINE("Line Out Jack", NULL),

	SND_SOC_DAPM_MIC("AMIC", NULL),

	SND_SOC_DAPM_LINE("Tuner In", NULL),

	SND_SOC_DAPM_LINE("Satellite Tuner In", NULL),

	SND_SOC_DAPM_LINE("AUX In", NULL),

};



static const struct snd_kcontrol_new mt2701_cs42448_controls[] = {

	SOC_DAPM_PIN_SWITCH("Line Out Jack"),

	SOC_DAPM_PIN_SWITCH("AMIC"),

	SOC_DAPM_PIN_SWITCH("Tuner In"),

	SOC_DAPM_PIN_SWITCH("Satellite Tuner In"),

	SOC_DAPM_PIN_SWITCH("AUX In"),

	SOC_ENUM_EXT("I2SIN1_MUX_Switch", i2sin_mux_enum,

		     mt2701_cs42448_i2sin1_mux_get,

		     mt2701_cs42448_i2sin1_mux_set),

};



static const unsigned int mt2701_cs42448_sampling_rates[] = {48000};



static struct snd_pcm_hw_constraint_list mt2701_cs42448_constraints_rates = {

		.count = ARRAY_SIZE(mt2701_cs42448_sampling_rates),

		.list = mt2701_cs42448_sampling_rates,

		.mask = 0,

};



static int mt2701_cs42448_fe_ops_startup(struct snd_pcm_substream *substream)

{

	int err;



	err = snd_pcm_hw_constraint_list(substream->runtime, 0,

					 SNDRV_PCM_HW_PARAM_RATE,

					 &mt2701_cs42448_constraints_rates);

	if (err < 0) {

		dev_err(substream->pcm->card->dev,

			"%s snd_pcm_hw_constraint_list failed: 0x%x\n",

			__func__, err);

		return err;

	}

	return 0;

}



static struct snd_soc_ops mt2701_cs42448_48k_fe_ops = {

	.startup = mt2701_cs42448_fe_ops_startup,

};



static int mt2701_cs42448_be_ops_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 *cpu_dai = rtd->cpu_dai;

	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	unsigned int mclk_rate;

	unsigned int rate = params_rate(params);

	unsigned int div_mclk_over_bck = rate > 192000 ? 2 : 4;

	unsigned int div_bck_over_lrck = 64;



	mclk_rate = rate * div_bck_over_lrck * div_mclk_over_bck;



	/* mt2701 mclk */

	snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate, SND_SOC_CLOCK_OUT);



	/* codec mclk */

	snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate, SND_SOC_CLOCK_IN);



	return 0;

}



static struct snd_soc_ops mt2701_cs42448_be_ops = {

	.hw_params = mt2701_cs42448_be_ops_hw_params

};



enum {

	DAI_LINK_FE_MULTI_CH_OUT,

	DAI_LINK_FE_PCM0_IN,

	DAI_LINK_FE_PCM1_IN,

	DAI_LINK_FE_BT_OUT,

	DAI_LINK_FE_BT_IN,

	DAI_LINK_BE_I2S0,

	DAI_LINK_BE_I2S1,

	DAI_LINK_BE_I2S2,

	DAI_LINK_BE_I2S3,

	DAI_LINK_BE_MRG_BT,

};



static struct snd_soc_dai_link mt2701_cs42448_dai_links[] = {

	/* FE */

	[DAI_LINK_FE_MULTI_CH_OUT] = {

		.name = "mt2701-cs42448-multi-ch-out",

		.stream_name = "mt2701-cs42448-multi-ch-out",

		.cpu_dai_name = "PCM_multi",

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST,

			    SND_SOC_DPCM_TRIGGER_POST},

		.ops = &mt2701_cs42448_48k_fe_ops,

		.dynamic = 1,

		.dpcm_playback = 1,

	},

	[DAI_LINK_FE_PCM0_IN] = {

		.name = "mt2701-cs42448-pcm0",

		.stream_name = "mt2701-cs42448-pcm0-data-UL",

		.cpu_dai_name = "PCM0",

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST,

			    SND_SOC_DPCM_TRIGGER_POST},

		.ops = &mt2701_cs42448_48k_fe_ops,

		.dynamic = 1,

		.dpcm_capture = 1,

	},

	[DAI_LINK_FE_PCM1_IN] = {

		.name = "mt2701-cs42448-pcm1-data-UL",

		.stream_name = "mt2701-cs42448-pcm1-data-UL",

		.cpu_dai_name = "PCM1",

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST,

			    SND_SOC_DPCM_TRIGGER_POST},

		.ops = &mt2701_cs42448_48k_fe_ops,

		.dynamic = 1,

		.dpcm_capture = 1,

	},

	[DAI_LINK_FE_BT_OUT] = {

		.name = "mt2701-cs42448-pcm-BT-out",

		.stream_name = "mt2701-cs42448-pcm-BT",

		.cpu_dai_name = "PCM_BT_DL",

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST,

			    SND_SOC_DPCM_TRIGGER_POST},

		.dynamic = 1,

		.dpcm_playback = 1,

	},

	[DAI_LINK_FE_BT_IN] = {

		.name = "mt2701-cs42448-pcm-BT-in",

		.stream_name = "mt2701-cs42448-pcm-BT",

		.cpu_dai_name = "PCM_BT_UL",

		.codec_name = "snd-soc-dummy",

		.codec_dai_name = "snd-soc-dummy-dai",

		.trigger = {SND_SOC_DPCM_TRIGGER_POST,

			    SND_SOC_DPCM_TRIGGER_POST},

		.dynamic = 1,

		.dpcm_capture = 1,

	},

	/* BE */

	[DAI_LINK_BE_I2S0] = {

		.name = "mt2701-cs42448-I2S0",

		.cpu_dai_name = "I2S0",

		.no_pcm = 1,

		.codec_dai_name = "cs42448",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS

			 | SND_SOC_DAIFMT_GATED,

		.ops = &mt2701_cs42448_be_ops,

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

	[DAI_LINK_BE_I2S1] = {

		.name = "mt2701-cs42448-I2S1",

		.cpu_dai_name = "I2S1",

		.no_pcm = 1,

		.codec_dai_name = "cs42448",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS

			 | SND_SOC_DAIFMT_GATED,

		.ops = &mt2701_cs42448_be_ops,

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

	[DAI_LINK_BE_I2S2] = {

		.name = "mt2701-cs42448-I2S2",

		.cpu_dai_name = "I2S2",

		.no_pcm = 1,

		.codec_dai_name = "cs42448",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS

			 | SND_SOC_DAIFMT_GATED,

		.ops = &mt2701_cs42448_be_ops,

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

	[DAI_LINK_BE_I2S3] = {

		.name = "mt2701-cs42448-I2S3",

		.cpu_dai_name = "I2S3",

		.no_pcm = 1,

		.codec_dai_name = "cs42448",

		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS

			 | SND_SOC_DAIFMT_GATED,

		.ops = &mt2701_cs42448_be_ops,

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

	[DAI_LINK_BE_MRG_BT] = {

		.name = "mt2701-cs42448-MRG-BT",

		.cpu_dai_name = "MRG BT",

		.no_pcm = 1,

		.codec_dai_name = "bt-sco-pcm-wb",

		.dpcm_playback = 1,

		.dpcm_capture = 1,

	},

};



static struct snd_soc_card mt2701_cs42448_soc_card = {

	.name = "mt2701-cs42448",

	.owner = THIS_MODULE,

	.dai_link = mt2701_cs42448_dai_links,

	.num_links = ARRAY_SIZE(mt2701_cs42448_dai_links),

	.controls = mt2701_cs42448_controls,

	.num_controls = ARRAY_SIZE(mt2701_cs42448_controls),

	.dapm_widgets = mt2701_cs42448_asoc_card_dapm_widgets,

	.num_dapm_widgets = ARRAY_SIZE(mt2701_cs42448_asoc_card_dapm_widgets),

};



static int mt2701_cs42448_machine_probe(struct platform_device *pdev)

{

	struct snd_soc_card *card = &mt2701_cs42448_soc_card;

	int ret;

	int i;

	struct device_node *platform_node, *codec_node, *codec_node_bt_mrg;

	struct mt2701_cs42448_private *priv =

		devm_kzalloc(&pdev->dev, sizeof(struct mt2701_cs42448_private),

			     GFP_KERNEL);

	struct device *dev = &pdev->dev;



	if (!priv)

		return -ENOMEM;



	platform_node = of_parse_phandle(pdev->dev.of_node,

					 "mediatek,platform", 0);

	if (!platform_node) {

		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");

		return -EINVAL;

	}

	for (i = 0; i < card->num_links; i++) {

		if (mt2701_cs42448_dai_links[i].platform_name)

			continue;

		mt2701_cs42448_dai_links[i].platform_of_node = platform_node;

	}



	card->dev = dev;



	codec_node = of_parse_phandle(pdev->dev.of_node,

				      "mediatek,audio-codec", 0);

	if (!codec_node) {

		dev_err(&pdev->dev,

			"Property 'audio-codec' missing or invalid\n");

		return -EINVAL;

	}

	for (i = 0; i < card->num_links; i++) {

		if (mt2701_cs42448_dai_links[i].codec_name)

			continue;

		mt2701_cs42448_dai_links[i].codec_of_node = codec_node;

	}



	codec_node_bt_mrg = of_parse_phandle(pdev->dev.of_node,

					     "mediatek,audio-codec-bt-mrg", 0);

	if (!codec_node_bt_mrg) {

		dev_err(&pdev->dev,

			"Property 'audio-codec-bt-mrg' missing or invalid\n");

		return -EINVAL;

	}

	mt2701_cs42448_dai_links[DAI_LINK_BE_MRG_BT].codec_of_node

							= codec_node_bt_mrg;



	ret = snd_soc_of_parse_audio_routing(card, "audio-routing");

	if (ret) {

		dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);

		return ret;

	}



	priv->i2s1_in_mux_gpio_sel_1 =

		of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio1", 0);

	if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_1)) {

		ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_1,

					"i2s1_in_mux_gpio_sel_1");

		if (ret)

			dev_warn(&pdev->dev, "%s devm_gpio_request fail %d\n",

				 __func__, ret);

		gpio_direction_output(priv->i2s1_in_mux_gpio_sel_1, 0);

	}



	priv->i2s1_in_mux_gpio_sel_2 =

		of_get_named_gpio(dev->of_node, "i2s1-in-sel-gpio2", 0);

	if (gpio_is_valid(priv->i2s1_in_mux_gpio_sel_2)) {

		ret = devm_gpio_request(dev, priv->i2s1_in_mux_gpio_sel_2,

					"i2s1_in_mux_gpio_sel_2");

		if (ret)

			dev_warn(&pdev->dev, "%s devm_gpio_request fail2 %d\n",

				 __func__, ret);

		gpio_direction_output(priv->i2s1_in_mux_gpio_sel_2, 0);

	}

	snd_soc_card_set_drvdata(card, priv);



	ret = devm_snd_soc_register_card(&pdev->dev, card);



	if (ret)

		dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",

			__func__, ret);

	return ret;

}



#ifdef CONFIG_OF

static const struct of_device_id mt2701_cs42448_machine_dt_match[] = {

	{.compatible = "mediatek,mt2701-cs42448-machine",},

	{}

};

#endif



static struct platform_driver mt2701_cs42448_machine = {

	.driver = {

		.name = "mt2701-cs42448",

		   #ifdef CONFIG_OF

		   .of_match_table = mt2701_cs42448_machine_dt_match,

		   #endif

	},

	.probe = mt2701_cs42448_machine_probe,

};



module_platform_driver(mt2701_cs42448_machine);



/* Module information */

MODULE_DESCRIPTION("MT2701 CS42448 ALSA SoC machine driver");

MODULE_AUTHOR("Ir Lian <ir.lian@mediatek.com>");

MODULE_LICENSE("GPL v2");

MODULE_ALIAS("mt2701 cs42448 soc card");