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Commit 805d132d authored by anish kumar's avatar anish kumar Committed by Mark Brown
Browse files

ASoC: Add max9867 codec driver 



Signed-off-by: default avataranish kumar <yesanishhere@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent cffee535

Documentation/devicetree/bindings/sound/max9867.txt

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Original line number Diff line number Diff line 
max9867 codec



This device supports I2C mode only.



Required properties:



- compatible : "maxim,max9867"

- reg : The chip select number on the I2C bus



Example:



&i2c {

	max9867: max9867@0x18 {

		compatible = "maxim,max9867";

		reg = <0x18>;

	};

};

sound/soc/codecs/Kconfig

+4 −0
Original line number Diff line number Diff line
@@ -79,6 +79,7 @@ config SND_SOC_ALL_CODECS 
	select SND_SOC_MAX98090 if I2C

	select SND_SOC_MAX98095 if I2C

	select SND_SOC_MAX98357A if GPIOLIB

	select SND_SOC_MAX9867 if I2C

	select SND_SOC_MAX98925 if I2C

	select SND_SOC_MAX98926 if I2C

	select SND_SOC_MAX9850 if I2C
@@ -517,6 +518,9 @@ config SND_SOC_MAX98095 
config SND_SOC_MAX98357A

       tristate



config SND_SOC_MAX9867

	tristate



config SND_SOC_MAX98925

       tristate

sound/soc/codecs/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -74,6 +74,7 @@ snd-soc-max98088-objs := max98088.o 
snd-soc-max98090-objs := max98090.o

snd-soc-max98095-objs := max98095.o

snd-soc-max98357a-objs := max98357a.o

snd-soc-max9867-objs := max9867.o

snd-soc-max98925-objs := max98925.o

snd-soc-max98926-objs := max98926.o

snd-soc-max9850-objs := max9850.o

sound/soc/codecs/max9867.c

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/*

 * max9867.c -- max9867 ALSA SoC Audio driver

 *

 * Copyright 2013-15 Maxim Integrated Products

 *

 * 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.

 */



#include <linux/delay.h>

#include <linux/i2c.h>

#include <linux/module.h>

#include <linux/regmap.h>

#include <sound/pcm_params.h>

#include <sound/soc.h>

#include <sound/tlv.h>

#include "max9867.h"



static const char *const max9867_spmode[] = {

	"Stereo Diff", "Mono Diff",

	"Stereo Cap", "Mono Cap",

	"Stereo Single", "Mono Single",

	"Stereo Single Fast", "Mono Single Fast"

};

static const char *const max9867_sidetone_text[] = {

	"None", "Left", "Right", "LeftRight", "LeftRightDiv2",

};

static const char *const max9867_filter_text[] = {"IIR", "FIR"};



static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,

	max9867_filter_text);

static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,

	max9867_spmode);

static SOC_ENUM_SINGLE_DECL(max9867_sidetone, MAX9867_DACGAIN, 6,

	max9867_sidetone_text);

static DECLARE_TLV_DB_SCALE(max9860_capture_tlv, -600, 200, 0);

static DECLARE_TLV_DB_SCALE(max9860_mic_tlv, 2000, 100, 1);

static DECLARE_TLV_DB_SCALE(max9860_adc_left_tlv, -1200, 100, 1);

static DECLARE_TLV_DB_SCALE(max9860_adc_right_tlv, -1200, 100, 1);

static const unsigned int max98088_micboost_tlv[] = {

	TLV_DB_RANGE_HEAD(2),

	0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0),

	2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),

};



static const struct snd_kcontrol_new max9867_snd_controls[] = {

	SOC_DOUBLE_R("Master Playback Volume", MAX9867_LEFTVOL,

				MAX9867_RIGHTVOL, 0, 63, 1),

	SOC_DOUBLE_R_TLV("Capture Volume", MAX9867_LEFTMICGAIN,

			MAX9867_RIGHTMICGAIN,

			0, 15, 1, max9860_capture_tlv),

	SOC_DOUBLE_R_TLV("Mic Volume", MAX9867_LEFTMICGAIN,

			MAX9867_RIGHTMICGAIN, 0, 31, 1, max9860_mic_tlv),

	SOC_DOUBLE_R_TLV("Mic Boost Volume", MAX9867_LEFTMICGAIN,

			MAX9867_RIGHTMICGAIN, 5, 3, 0, max98088_micboost_tlv),

	SOC_ENUM("Digital Sidetone Src", max9867_sidetone),

	SOC_SINGLE("Sidetone Volume", MAX9867_DACGAIN, 0, 31, 1),

	SOC_SINGLE("DAC Volume", MAX9867_DACLEVEL, 4, 3, 0),

	SOC_SINGLE("DAC Attenuation", MAX9867_DACLEVEL, 0, 15, 1),

	SOC_SINGLE_TLV("ADC Left Volume", MAX9867_ADCLEVEL,

			4, 15, 1, max9860_adc_left_tlv),

	SOC_SINGLE_TLV("ADC Right Volume", MAX9867_ADCLEVEL,

			0, 15, 1, max9860_adc_right_tlv),

	SOC_ENUM("Speaker Mode", max9867_spkmode),

	SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),

	SOC_SINGLE("ZCD Switch", MAX9867_MODECONFIG, 5, 1, 0),

	SOC_ENUM("DSP Filter", max9867_filter),

};



static const char *const max9867_mux[] = {"None", "Mic", "Line", "Mic_Line"};



static SOC_ENUM_SINGLE_DECL(max9867_mux_enum,

	MAX9867_INPUTCONFIG, MAX9867_INPUT_SHIFT,

	max9867_mux);



static const struct snd_kcontrol_new max9867_dapm_mux_controls =

	SOC_DAPM_ENUM("Route", max9867_mux_enum);



static const struct snd_kcontrol_new max9867_left_dapm_control =

	SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 6, 1, 0);

static const struct snd_kcontrol_new max9867_right_dapm_control =

	SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 5, 1, 0);

static const struct snd_kcontrol_new max9867_line_dapm_control =

	SOC_DAPM_SINGLE("Switch", MAX9867_LEFTLINELVL, 6, 1, 1);



static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {

	SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_DAC("Left DAC", NULL, MAX9867_PWRMAN, 3, 0),

	SND_SOC_DAPM_DAC("Right DAC", NULL, MAX9867_PWRMAN, 2, 0),

	SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),

	SND_SOC_DAPM_OUTPUT("HPOUT"),



	SND_SOC_DAPM_AIF_IN("DAI_IN", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_ADC("Left ADC", "HiFi Capture", MAX9867_PWRMAN, 1, 0),

	SND_SOC_DAPM_ADC("Right ADC", "HiFi Capture", MAX9867_PWRMAN, 0, 0),

	SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,

		&max9867_dapm_mux_controls),



	SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),

	SND_SOC_DAPM_SWITCH("Left Line", MAX9867_LEFTLINELVL, 6, 1,

		&max9867_left_dapm_control),

	SND_SOC_DAPM_SWITCH("Right Line", MAX9867_RIGTHLINELVL, 6, 1,

		&max9867_right_dapm_control),

	SND_SOC_DAPM_SWITCH("Line Mixer", SND_SOC_NOPM, 0, 0,

		&max9867_line_dapm_control),

	SND_SOC_DAPM_INPUT("LINE_IN"),

};



static const struct snd_soc_dapm_route max9867_audio_map[] = {

	{"Left DAC", NULL, "DAI_OUT"},

	{"Right DAC", NULL, "DAI_OUT"},

	{"Output Mixer", NULL, "Left DAC"},

	{"Output Mixer", NULL, "Right DAC"},

	{"HPOUT", NULL, "Output Mixer"},



	{"Left ADC", NULL, "DAI_IN"},

	{"Right ADC", NULL, "DAI_IN"},

	{"Input Mixer", NULL, "Left ADC"},

	{"Input Mixer", NULL, "Right ADC"},

	{"Input Mux", "Line", "Input Mixer"},

	{"Input Mux", "Mic", "Input Mixer"},

	{"Input Mux", "Mic_Line", "Input Mixer"},

	{"Right Line", "Switch", "Input Mux"},

	{"Left Line", "Switch", "Input Mux"},

	{"LINE_IN", NULL, "Left Line"},

	{"LINE_IN", NULL, "Right Line"},

};



enum rates {

	pcm_rate_8, pcm_rate_16, pcm_rate_24,

	pcm_rate_32, pcm_rate_44,

	pcm_rate_48, max_pcm_rate,

};



struct ni_div_rates {

	u32 mclk;

	u16 ni[max_pcm_rate];

} ni_div[] = {

	{11289600, {0x116A, 0x22D4, 0x343F, 0x45A9, 0x6000, 0x687D} },

	{12000000, {0x1062, 0x20C5, 0x3127, 0x4189, 0x5A51, 0x624E} },

	{12288000, {0x1000, 0x2000, 0x3000, 0x4000, 0x5833, 0x6000} },

	{13000000, {0x0F20, 0x1E3F, 0x2D5F, 0x3C7F, 0x535F, 0x5ABE} },

	{19200000, {0x0A3D, 0x147B, 0x1EB8, 0x28F6, 0x3873, 0x3D71} },

	{24000000, {0x1062, 0x20C5, 0x1893, 0x4189, 0x5A51, 0x624E} },

	{26000000, {0x0F20, 0x1E3F, 0x16AF, 0x3C7F, 0x535F, 0x5ABE} },

	{27000000, {0x0E90, 0x1D21, 0x15D8, 0x3A41, 0x5048, 0x5762} },

};



static inline int get_ni_value(int mclk, int rate)

{

	int i, ret = 0;



	/* find the closest rate index*/

	for (i = 0; i < ARRAY_SIZE(ni_div); i++) {

		if (ni_div[i].mclk >= mclk)

			break;

	}



	switch (rate) {

	case 8000:

		return ni_div[i].ni[pcm_rate_8];

	case 16000:

		return ni_div[i].ni[pcm_rate_16];

	case 32000:

		return ni_div[i].ni[pcm_rate_32];

	case 44100:

		return ni_div[i].ni[pcm_rate_44];

	case 48000:

		return ni_div[i].ni[pcm_rate_48];

	default:

		pr_err("%s wrong rate %d\n", __func__, rate);

		ret = -EINVAL;

	}

	return ret;

}



static int max9867_dai_hw_params(struct snd_pcm_substream *substream,

		struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)

{

	struct snd_soc_codec *codec = dai->codec;

	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);

	unsigned int ni_h, ni_l, value;



	value = get_ni_value(max9867->sysclk, params_rate(params));

	if (value < 0)

		return value;



	ni_h = (0xFF00 & value) >> 8;

	ni_l = 0x00FF & value;

	/* set up the ni value */

	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,

		MAX9867_NI_HIGH_MASK, ni_h);

	regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,

		MAX9867_NI_LOW_MASK, ni_l);

	if (!max9867->master) {

		/*

		 * digital pll locks on to any externally supplied LRCLK signal

		 * and also enable rapid lock mode.

		 */

		regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,

			MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);

		regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,

			MAX9867_PLL, MAX9867_PLL);

	} else {

		unsigned long int bclk_rate, pclk_bclk_ratio;

		int bclk_value;



		bclk_rate = params_rate(params) * 2 *

			snd_pcm_format_width(params_format(params));

		pclk_bclk_ratio = max9867->pclk/bclk_rate;

		switch (snd_pcm_format_width(params_format(params))) {

		case 8:

		case 16:

			if (pclk_bclk_ratio == 2)

				bclk_value = MAX9867_IFC1B_PCLK_2;

			else if (pclk_bclk_ratio == 4)

				bclk_value = MAX9867_IFC1B_PCLK_4;

			else if (pclk_bclk_ratio == 8)

				bclk_value = MAX9867_IFC1B_PCLK_8;

			else if (pclk_bclk_ratio == 16)

				bclk_value = MAX9867_IFC1B_PCLK_16;

			else {

				dev_err(codec->dev, "unsupported sampling rate\n");

				return -EINVAL;

			}

			break;

		case 24:

			bclk_value = MAX9867_IFC1B_24BIT;

			break;

		case 32:

			bclk_value = MAX9867_IFC1B_32BIT;

			break;

		default:

			dev_err(codec->dev, "unsupported sampling rate\n");

			return -EINVAL;

		}

		regmap_update_bits(max9867->regmap, MAX9867_IFC1B,

			MAX9867_IFC1B_BCLK_MASK, bclk_value);

	}

	return 0;

}



static int max9867_prepare(struct snd_pcm_substream *substream,

			 struct snd_soc_dai *dai)

{

	struct snd_soc_codec *codec = dai->codec;

	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);



	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,

		MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);

	return 0;

}



static int max9867_mute(struct snd_soc_dai *dai, int mute)

{

	struct snd_soc_codec *codec = dai->codec;

	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);



	if (mute)

		regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,

			MAX9867_DAC_MUTE_MASK, MAX9867_DAC_MUTE_MASK);

	else

		regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,

			MAX9867_DAC_MUTE_MASK, 0);

	return 0;

}



static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai,

		int clk_id, unsigned int freq, int dir)

{

	struct snd_soc_codec *codec = codec_dai->codec;

	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);

	int value = 0;



	/* Set the prescaler based on the master clock frequency*/

	if (freq >= 10000000 && freq <= 20000000) {

		value |= MAX9867_PSCLK_10_20;

		max9867->pclk =  freq;

	} else if (freq >= 20000000 && freq <= 40000000) {

		value |= MAX9867_PSCLK_20_40;

		max9867->pclk =  freq/2;

	} else if (freq >= 40000000 && freq <= 60000000) {

		value |= MAX9867_PSCLK_40_60;

		max9867->pclk =  freq/4;

	} else {

		pr_err("bad clock frequency %d", freq);

		return -EINVAL;

	}

	value = value << MAX9867_PSCLK_SHIFT;

	max9867->sysclk = freq;

	/* exact integer mode is not supported */

	value &= ~MAX9867_FREQ_MASK;

	regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,

			MAX9867_PSCLK_MASK, value);

	return 0;

}



static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,

		unsigned int fmt)

{

	struct snd_soc_codec *codec = codec_dai->codec;

	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);

	u8 iface1A = 0, iface1B = 0;

	int ret;



	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {

	case SND_SOC_DAIFMT_CBM_CFM:

		max9867->master = 1;

		iface1A |= MAX9867_MASTER;

		break;

	case SND_SOC_DAIFMT_CBS_CFS:

		max9867->master = 0;

		iface1A &= ~MAX9867_MASTER;

		break;

	default:

		return -EINVAL;

	}



	/* for i2s compatible mode */

	iface1A |= MAX9867_I2S_DLY;

	/* SDOUT goes to hiz state after all data is transferred */

	iface1A |= MAX9867_SDOUT_HIZ;



	/* Clock inversion bits, BCI and WCI */

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {

	case SND_SOC_DAIFMT_NB_NF:

		break;

	case SND_SOC_DAIFMT_IB_IF:

		iface1A |= MAX9867_WCI_MODE | MAX9867_BCI_MODE;

		break;

	case SND_SOC_DAIFMT_IB_NF:

		iface1A |= MAX9867_BCI_MODE;

		break;

	case SND_SOC_DAIFMT_NB_IF:

		iface1A |= MAX9867_WCI_MODE;

		break;

	default:

		return -EINVAL;

	}



	ret = regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);

	ret = regmap_write(max9867->regmap, MAX9867_IFC1B, iface1B);

	return 0;

}



static struct snd_soc_dai_ops max9867_dai_ops = {

	.set_fmt = max9867_dai_set_fmt,

	.set_sysclk	= max9867_set_dai_sysclk,

	.prepare	= max9867_prepare,

	.digital_mute	= max9867_mute,

	.hw_params = max9867_dai_hw_params,

};



#define MAX9867_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\

	SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)

#define MAX9867_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)



static struct snd_soc_dai_driver max9867_dai[] = {

	{

	.name = "max9867-aif1",

	.playback = {

		.stream_name = "HiFi Playback",

		.channels_min = 1,

		.channels_max = 2,

		.rates = MAX9867_RATES,

		.formats = MAX9867_FORMATS,

	},

	.capture = {

		.stream_name = "HiFi Capture",

		.channels_min = 1,

		.channels_max = 2,

		.rates = MAX9867_RATES,

		.formats = MAX9867_FORMATS,

	},

	.ops = &max9867_dai_ops,

	}

};



#ifdef CONFIG_PM_SLEEP

static int max9867_suspend(struct device *dev)

{

	struct max9867_priv *max9867 = dev_get_drvdata(dev);



	/* Drop down to power saving mode when system is suspended */

	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,

		MAX9867_SHTDOWN_MASK, ~MAX9867_SHTDOWN_MASK);

	return 0;

}



static int max9867_resume(struct device *dev)

{

	struct max9867_priv *max9867 = dev_get_drvdata(dev);



	regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,

		MAX9867_SHTDOWN_MASK, MAX9867_SHTDOWN_MASK);

	return 0;

}

#endif



static int max9867_probe(struct snd_soc_codec *codec)

{

	struct max9867_priv *max9867 = snd_soc_codec_get_drvdata(codec);



	dev_dbg(codec->dev, "max98090_probe\n");

	max9867->codec = codec;

	return 0;

}



static struct snd_soc_codec_driver max9867_codec = {

	.probe = max9867_probe,

	.controls = max9867_snd_controls,

	.num_controls = ARRAY_SIZE(max9867_snd_controls),

	.dapm_routes = max9867_audio_map,

	.num_dapm_routes = ARRAY_SIZE(max9867_audio_map),

	.dapm_widgets = max9867_dapm_widgets,

	.num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets),

};



static bool max9867_volatile_register(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case MAX9867_STATUS:

	case MAX9867_JACKSTATUS:

	case MAX9867_AUXHIGH:

	case MAX9867_AUXLOW:

		return true;

	default:

		return false;

	}

}



static struct reg_default max9867_reg[] = {

	{ 0x04, 0x00 },

	{ 0x05, 0x00 },

	{ 0x06, 0x00 },

	{ 0x07, 0x00 },

	{ 0x08, 0x00 },

	{ 0x09, 0x00 },

	{ 0x0A, 0x00 },

	{ 0x0B, 0x00 },

	{ 0x0C, 0x00 },

	{ 0x0D, 0x00 },

	{ 0x0E, 0x00 },

	{ 0x0F, 0x00 },

	{ 0x10, 0x00 },

	{ 0x11, 0x00 },

	{ 0x12, 0x00 },

	{ 0x13, 0x00 },

	{ 0x14, 0x00 },

	{ 0x15, 0x00 },

	{ 0x16, 0x00 },

	{ 0x17, 0x00 },

};



static struct regmap_config max9867_regmap = {

	.reg_bits	= 8,

	.val_bits	= 8,

	.max_register	= MAX9867_REVISION,

	.reg_defaults	= max9867_reg,

	.num_reg_defaults = ARRAY_SIZE(max9867_reg),

	.volatile_reg	= max9867_volatile_register,

	.cache_type	= REGCACHE_RBTREE,

};



static int max9867_i2c_probe(struct i2c_client *i2c,

		const struct i2c_device_id *id)

{

	struct max9867_priv *max9867;

	int ret = 0, reg;



	max9867 = devm_kzalloc(&i2c->dev,

			sizeof(*max9867), GFP_KERNEL);

	if (!max9867)

		return -ENOMEM;



	i2c_set_clientdata(i2c, max9867);

	max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);

	if (IS_ERR(max9867->regmap)) {

		ret = PTR_ERR(max9867->regmap);

		dev_err(&i2c->dev,

				"Failed to allocate regmap: %d\n", ret);

		return ret;

	}

	ret = regmap_read(max9867->regmap,

			MAX9867_REVISION, &reg);

	if (ret < 0) {

		dev_err(&i2c->dev, "Failed to read: %d\n", ret);

		return ret;

	}

	dev_info(&i2c->dev, "device revision: %x\n", reg);

	ret = snd_soc_register_codec(&i2c->dev, &max9867_codec,

			max9867_dai, ARRAY_SIZE(max9867_dai));

	if (ret < 0) {

		dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);

		return ret;

	}

	return ret;

}



static int max9867_i2c_remove(struct i2c_client *client)

{

	snd_soc_unregister_codec(&client->dev);

	return 0;

}



static const struct i2c_device_id max9867_i2c_id[] = {

	{ "max9867", 0 },

};



static const struct of_device_id max9867_of_match[] = {

	{ .compatible = "maxim,max9867", },

	{ }

};



MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);



static const struct dev_pm_ops max9867_pm_ops = {

	SET_SYSTEM_SLEEP_PM_OPS(max9867_suspend, max9867_resume)

};



static struct i2c_driver max9867_i2c_driver = {

	.driver = {

		.name = "max9867",

		.of_match_table = of_match_ptr(max9867_of_match),

		.pm = &max9867_pm_ops,

	},

	.probe  = max9867_i2c_probe,

	.remove = max9867_i2c_remove,

	.id_table = max9867_i2c_id,

};



module_i2c_driver(max9867_i2c_driver);



MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>");

MODULE_DESCRIPTION("ALSA SoC MAX9867 driver");

MODULE_LICENSE("GPL");

sound/soc/codecs/max9867.h

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/*

 * max9867.h -- MAX9867 ALSA SoC Audio driver

 *

 * Copyright 2013-2015 Maxim Integrated Products

 *

 * 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.

 */



#ifndef _MAX9867_H

#define _MAX9867_H



/* MAX9867 register space */



#define MAX9867_STATUS        0x00

#define MAX9867_JACKSTATUS   0x01

#define MAX9867_AUXHIGH      0x02

#define MAX9867_AUXLOW       0x03

#define MAX9867_INTEN        0x04

#define MAX9867_SYSCLK       0x05

#define MAX9867_FREQ_MASK    0xF

#define MAX9867_PSCLK_SHIFT  0x4

#define MAX9867_PSCLK_WIDTH  0x2

#define MAX9867_PSCLK_MASK   (0x03<<MAX9867_PSCLK_SHIFT)

#define MAX9867_PSCLK_10_20  0x1

#define MAX9867_PSCLK_20_40  0x2

#define MAX9867_PSCLK_40_60  0x3

#define MAX9867_AUDIOCLKHIGH 0x06

#define MAX9867_NI_HIGH_WIDTH 0x7

#define MAX9867_NI_HIGH_MASK 0x7F

#define MAX9867_NI_LOW_MASK 0x7F

#define MAX9867_NI_LOW_SHIFT 0x1

#define MAX9867_PLL     (1<<7)

#define MAX9867_AUDIOCLKLOW  0x07

#define MAX9867_RAPID_LOCK   0x01

#define MAX9867_IFC1A        0x08

#define MAX9867_MASTER       (1<<7)

#define MAX9867_I2S_DLY      (1<<4)

#define MAX9867_SDOUT_HIZ    (1<<3)

#define MAX9867_TDM_MODE     (1<<2)

#define MAX9867_WCI_MODE     (1<<6)

#define MAX9867_BCI_MODE     (1<<5)

#define MAX9867_IFC1B        0x09

#define MAX9867_IFC1B_BCLK_MASK 7

#define MAX9867_IFC1B_32BIT  0x01

#define MAX9867_IFC1B_24BIT  0x02

#define MAX9867_IFC1B_PCLK_2 4

#define MAX9867_IFC1B_PCLK_4 5

#define MAX9867_IFC1B_PCLK_8 6

#define MAX9867_IFC1B_PCLK_16 7

#define MAX9867_CODECFLTR    0x0a

#define MAX9867_DACGAIN      0x0b

#define MAX9867_DACLEVEL     0x0c

#define MAX9867_DAC_MUTE_SHIFT 0x6

#define MAX9867_DAC_MUTE_WIDTH 0x1

#define MAX9867_DAC_MUTE_MASK (0x1<<MAX9867_DAC_MUTE_SHIFT)

#define MAX9867_ADCLEVEL     0x0d

#define MAX9867_LEFTLINELVL  0x0e

#define MAX9867_RIGTHLINELVL 0x0f

#define MAX9867_LEFTVOL      0x10

#define MAX9867_RIGHTVOL     0x11

#define MAX9867_LEFTMICGAIN  0x12

#define MAX9867_RIGHTMICGAIN 0x13

#define MAX9867_INPUTCONFIG  0x14

#define MAX9867_INPUT_SHIFT  0x6

#define MAX9867_MICCONFIG    0x15

#define MAX9867_MODECONFIG   0x16

#define MAX9867_PWRMAN       0x17

#define MAX9867_SHTDOWN_MASK (1<<7)

#define MAX9867_REVISION     0xff



#define MAX9867_CACHEREGNUM 10



/* codec private data */

struct max9867_priv {

	struct regmap *regmap;

	struct snd_soc_codec *codec;

	unsigned int sysclk;

	unsigned int pclk;

	unsigned int master;

};

#endif