sound/soc/codecs/max9877.c - kernel/msm-4.19 - Gitiles

 /*
  * max9877.c  --  amp driver for max9877
  *
  * Copyright (C) 2009 Samsung Electronics Co.Ltd
  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
  *
  *  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;  either version 2 of the  License, or (at your
  *  option) any later version.
  *
  */

 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
 #include <linux/regmap.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>

 #include "max9877.h"

 static struct regmap *regmap;

 static struct reg_default max9877_regs[] = {
 	{ 0, 0x40 },
 	{ 1, 0x00 },
 	{ 2, 0x00 },
 	{ 3, 0x00 },
 	{ 4, 0x49 },
 };

 static int max9877_get_reg(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	unsigned int reg = mc->reg;
 	unsigned int shift = mc->shift;
 	unsigned int mask = mc->max;
 	unsigned int invert = mc->invert;
 	unsigned int val;
 	int ret;

 	ret = regmap_read(regmap, reg, &val);
 	if (ret != 0)
 		return ret;

 	ucontrol->value.integer.value[0] = (val >> shift) & mask;

 	if (invert)
 		ucontrol->value.integer.value[0] =
 			mask - ucontrol->value.integer.value[0];

 	return 0;
 }

 static int max9877_set_reg(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	unsigned int reg = mc->reg;
 	unsigned int shift = mc->shift;
 	unsigned int mask = mc->max;
 	unsigned int invert = mc->invert;
 	unsigned int val = (ucontrol->value.integer.value[0] & mask);
 	bool change;
 	int ret;

 	if (invert)
 		val = mask - val;

 	ret = regmap_update_bits_check(regmap, reg, mask << shift,
 				       val << shift, &change);
 	if (ret != 0)
 		return ret;

 	if (change)
 		return 1;
 	else
 		return 0;
 }

 static int max9877_get_2reg(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	unsigned int reg = mc->reg;
 	unsigned int reg2 = mc->rreg;
 	unsigned int shift = mc->shift;
 	unsigned int mask = mc->max;
 	unsigned int val;
 	int ret;

 	ret = regmap_read(regmap, reg, &val);
 	if (ret != 0)
 		return ret;
 	ucontrol->value.integer.value[0] = (val >> shift) & mask;

 	ret = regmap_read(regmap, reg2, &val);
 	if (ret != 0)
 		return ret;
 	ucontrol->value.integer.value[1] = (val >> shift) & mask;

 	return 0;
 }

 static int max9877_set_2reg(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	unsigned int reg = mc->reg;
 	unsigned int reg2 = mc->rreg;
 	unsigned int shift = mc->shift;
 	unsigned int mask = mc->max;
 	unsigned int val = (ucontrol->value.integer.value[0] & mask);
 	unsigned int val2 = (ucontrol->value.integer.value[1] & mask);
 	bool change1, change2;
 	int ret;

 	ret = regmap_update_bits_check(regmap, reg, mask << shift,
 				       val << shift, &change1);
 	if (ret != 0)
 		return ret;

 	ret = regmap_update_bits_check(regmap, reg2, mask << shift,
 				       val2 << shift, &change2);
 	if (ret != 0)
 		return ret;

 	if (change1 || change2)
 		return 1;
 	else
 		return 0;
 }

 static int max9877_get_out_mode(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	unsigned int val;
 	int ret;

 	ret = regmap_read(regmap, MAX9877_OUTPUT_MODE, &val);
 	if (ret != 0)
 		return ret;

 	val &= MAX9877_OUTMODE_MASK;
 	if (val)
 		val--;

 	ucontrol->value.integer.value[0] = val;

 	return 0;
 }

 static int max9877_set_out_mode(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	unsigned int val;
 	bool change;
 	int ret;

 	val = ucontrol->value.integer.value[0] + 1;

 	ret = regmap_update_bits_check(regmap, MAX9877_OUTPUT_MODE,
 				       MAX9877_OUTMODE_MASK, val, &change);
 	if (ret != 0)
 		return ret;

 	if (change)
 		return 1;
 	else
 		return 0;
 }

 static int max9877_get_osc_mode(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	unsigned int val;
 	int ret;

 	ret = regmap_read(regmap, MAX9877_OUTPUT_MODE, &val);
 	if (ret != 0)
 		return ret;

 	val &= MAX9877_OSC_MASK;
 	val >>= MAX9877_OSC_OFFSET;

 	ucontrol->value.integer.value[0] = val;

 	return 0;
 }

 static int max9877_set_osc_mode(struct snd_kcontrol *kcontrol,
 		struct snd_ctl_elem_value *ucontrol)
 {
 	unsigned int val;
 	bool change;
 	int ret;

 	val = ucontrol->value.integer.value[0] << MAX9877_OSC_OFFSET;
 	ret = regmap_update_bits_check(regmap, MAX9877_OUTPUT_MODE,
 				       MAX9877_OSC_MASK, val, &change);
 	if (ret != 0)
 		return ret;

 	if (change)
 		return 1;
 	else
 		return 0;
 }

 static const unsigned int max9877_pgain_tlv[] = {
 	TLV_DB_RANGE_HEAD(2),
 	0, 1, TLV_DB_SCALE_ITEM(0, 900, 0),
 	2, 2, TLV_DB_SCALE_ITEM(2000, 0, 0),
 };

 static const unsigned int max9877_output_tlv[] = {
 	TLV_DB_RANGE_HEAD(4),
 	0, 7, TLV_DB_SCALE_ITEM(-7900, 400, 1),
 	8, 15, TLV_DB_SCALE_ITEM(-4700, 300, 0),
 	16, 23, TLV_DB_SCALE_ITEM(-2300, 200, 0),
 	24, 31, TLV_DB_SCALE_ITEM(-700, 100, 0),
 };

 static const char *max9877_out_mode[] = {
 	"INA -> SPK",
 	"INA -> HP",
 	"INA -> SPK and HP",
 	"INB -> SPK",
 	"INB -> HP",
 	"INB -> SPK and HP",
 	"INA + INB -> SPK",
 	"INA + INB -> HP",
 	"INA + INB -> SPK and HP",
 };

 static const char *max9877_osc_mode[] = {
 	"1176KHz",
 	"1100KHz",
 	"700KHz",
 };

 static const struct soc_enum max9877_enum[] = {
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max9877_out_mode), max9877_out_mode),
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max9877_osc_mode), max9877_osc_mode),
 };

 static const struct snd_kcontrol_new max9877_controls[] = {
 	SOC_SINGLE_EXT_TLV("MAX9877 PGAINA Playback Volume",
 			MAX9877_INPUT_MODE, 0, 2, 0,
 			max9877_get_reg, max9877_set_reg, max9877_pgain_tlv),
 	SOC_SINGLE_EXT_TLV("MAX9877 PGAINB Playback Volume",
 			MAX9877_INPUT_MODE, 2, 2, 0,
 			max9877_get_reg, max9877_set_reg, max9877_pgain_tlv),
 	SOC_SINGLE_EXT_TLV("MAX9877 Amp Speaker Playback Volume",
 			MAX9877_SPK_VOLUME, 0, 31, 0,
 			max9877_get_reg, max9877_set_reg, max9877_output_tlv),
 	SOC_DOUBLE_R_EXT_TLV("MAX9877 Amp HP Playback Volume",
 			MAX9877_HPL_VOLUME, MAX9877_HPR_VOLUME, 0, 31, 0,
 			max9877_get_2reg, max9877_set_2reg, max9877_output_tlv),
 	SOC_SINGLE_EXT("MAX9877 INB Stereo Switch",
 			MAX9877_INPUT_MODE, 4, 1, 1,
 			max9877_get_reg, max9877_set_reg),
 	SOC_SINGLE_EXT("MAX9877 INA Stereo Switch",
 			MAX9877_INPUT_MODE, 5, 1, 1,
 			max9877_get_reg, max9877_set_reg),
 	SOC_SINGLE_EXT("MAX9877 Zero-crossing detection Switch",
 			MAX9877_INPUT_MODE, 6, 1, 0,
 			max9877_get_reg, max9877_set_reg),
 	SOC_SINGLE_EXT("MAX9877 Bypass Mode Switch",
 			MAX9877_OUTPUT_MODE, 6, 1, 0,
 			max9877_get_reg, max9877_set_reg),
 	SOC_SINGLE_EXT("MAX9877 Shutdown Mode Switch",
 			MAX9877_OUTPUT_MODE, 7, 1, 1,
 			max9877_get_reg, max9877_set_reg),
 	SOC_ENUM_EXT("MAX9877 Output Mode", max9877_enum[0],
 			max9877_get_out_mode, max9877_set_out_mode),
 	SOC_ENUM_EXT("MAX9877 Oscillator Mode", max9877_enum[1],
 			max9877_get_osc_mode, max9877_set_osc_mode),
 };

 /* This function is called from ASoC machine driver */
 int max9877_add_controls(struct snd_soc_codec *codec)
 {
 	return snd_soc_add_codec_controls(codec, max9877_controls,
 			ARRAY_SIZE(max9877_controls));
 }
 EXPORT_SYMBOL_GPL(max9877_add_controls);

 static const struct regmap_config max9877_regmap = {
 	.reg_bits = 8,
 	.val_bits = 8,

 	.reg_defaults = max9877_regs,
 	.num_reg_defaults = ARRAY_SIZE(max9877_regs),
 	.cache_type = REGCACHE_RBTREE,
 };

 static int max9877_i2c_probe(struct i2c_client *client,
 			     const struct i2c_device_id *id)
 {
 	int i;

 	regmap = devm_regmap_init_i2c(client, &max9877_regmap);
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);

 	/* Ensure the device is in reset state */
 	for (i = 0; i < ARRAY_SIZE(max9877_regs); i++)
 		regmap_write(regmap, max9877_regs[i].reg, max9877_regs[i].def);

 	return 0;
 }

 static int max9877_i2c_remove(struct i2c_client *client)
 {
 	regmap = NULL;

 	return 0;
 }

 static const struct i2c_device_id max9877_i2c_id[] = {
 	{ "max9877", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, max9877_i2c_id);

 static struct i2c_driver max9877_i2c_driver = {
 	.driver = {
 		.name = "max9877",
 		.owner = THIS_MODULE,
 	},
 	.probe = max9877_i2c_probe,
 	.remove = max9877_i2c_remove,
 	.id_table = max9877_i2c_id,
 };

 module_i2c_driver(max9877_i2c_driver);

 MODULE_DESCRIPTION("ASoC MAX9877 amp driver");
 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 MODULE_LICENSE("GPL");
	/*
	* max9877.c -- amp driver for max9877
	*
	* Copyright (C) 2009 Samsung Electronics Co.Ltd
	* Author: Joonyoung Shim <jy0922.shim@samsung.com>
	*
	* 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; either version 2 of the License, or (at your
	* option) any later version.
	*
	*/

	#include <linux/module.h>
	#include <linux/init.h>
	#include <linux/i2c.h>
	#include <linux/regmap.h>
	#include <sound/soc.h>
	#include <sound/tlv.h>

	#include "max9877.h"

	static struct regmap *regmap;

	static struct reg_default max9877_regs[] = {
	{ 0, 0x40 },
	{ 1, 0x00 },
	{ 2, 0x00 },
	{ 3, 0x00 },
	{ 4, 0x49 },
	};

	static int max9877_get_reg(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct soc_mixer_control *mc =
	(struct soc_mixer_control *)kcontrol->private_value;
	unsigned int reg = mc->reg;
	unsigned int shift = mc->shift;
	unsigned int mask = mc->max;
	unsigned int invert = mc->invert;
	unsigned int val;
	int ret;

	ret = regmap_read(regmap, reg, &val);
	if (ret != 0)
	return ret;

	ucontrol->value.integer.value[0] = (val >> shift) & mask;

	if (invert)
	ucontrol->value.integer.value[0] =
	mask - ucontrol->value.integer.value[0];

	return 0;
	}

	static int max9877_set_reg(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct soc_mixer_control *mc =
	(struct soc_mixer_control *)kcontrol->private_value;
	unsigned int reg = mc->reg;
	unsigned int shift = mc->shift;
	unsigned int mask = mc->max;
	unsigned int invert = mc->invert;
	unsigned int val = (ucontrol->value.integer.value[0] & mask);
	bool change;
	int ret;

	if (invert)
	val = mask - val;

	ret = regmap_update_bits_check(regmap, reg, mask << shift,
	val << shift, &change);
	if (ret != 0)
	return ret;

	if (change)
	return 1;
	else
	return 0;
	}

	static int max9877_get_2reg(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct soc_mixer_control *mc =
	(struct soc_mixer_control *)kcontrol->private_value;
	unsigned int reg = mc->reg;
	unsigned int reg2 = mc->rreg;
	unsigned int shift = mc->shift;
	unsigned int mask = mc->max;
	unsigned int val;
	int ret;

	ret = regmap_read(regmap, reg, &val);
	if (ret != 0)
	return ret;
	ucontrol->value.integer.value[0] = (val >> shift) & mask;

	ret = regmap_read(regmap, reg2, &val);
	if (ret != 0)
	return ret;
	ucontrol->value.integer.value[1] = (val >> shift) & mask;

	return 0;
	}

	static int max9877_set_2reg(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct soc_mixer_control *mc =
	(struct soc_mixer_control *)kcontrol->private_value;
	unsigned int reg = mc->reg;
	unsigned int reg2 = mc->rreg;
	unsigned int shift = mc->shift;
	unsigned int mask = mc->max;
	unsigned int val = (ucontrol->value.integer.value[0] & mask);
	unsigned int val2 = (ucontrol->value.integer.value[1] & mask);
	bool change1, change2;
	int ret;

	ret = regmap_update_bits_check(regmap, reg, mask << shift,
	val << shift, &change1);
	if (ret != 0)
	return ret;

	ret = regmap_update_bits_check(regmap, reg2, mask << shift,
	val2 << shift, &change2);
	if (ret != 0)
	return ret;

	if (change1 \|\| change2)
	return 1;
	else
	return 0;
	}

	static int max9877_get_out_mode(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	unsigned int val;
	int ret;

	ret = regmap_read(regmap, MAX9877_OUTPUT_MODE, &val);
	if (ret != 0)
	return ret;

	val &= MAX9877_OUTMODE_MASK;
	if (val)
	val--;

	ucontrol->value.integer.value[0] = val;

	return 0;
	}

	static int max9877_set_out_mode(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	unsigned int val;
	bool change;
	int ret;

	val = ucontrol->value.integer.value[0] + 1;

	ret = regmap_update_bits_check(regmap, MAX9877_OUTPUT_MODE,
	MAX9877_OUTMODE_MASK, val, &change);
	if (ret != 0)
	return ret;

	if (change)
	return 1;
	else
	return 0;
	}

	static int max9877_get_osc_mode(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	unsigned int val;
	int ret;

	ret = regmap_read(regmap, MAX9877_OUTPUT_MODE, &val);
	if (ret != 0)
	return ret;

	val &= MAX9877_OSC_MASK;
	val >>= MAX9877_OSC_OFFSET;

	ucontrol->value.integer.value[0] = val;

	return 0;
	}

	static int max9877_set_osc_mode(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	unsigned int val;
	bool change;
	int ret;

	val = ucontrol->value.integer.value[0] << MAX9877_OSC_OFFSET;
	ret = regmap_update_bits_check(regmap, MAX9877_OUTPUT_MODE,
	MAX9877_OSC_MASK, val, &change);
	if (ret != 0)
	return ret;

	if (change)
	return 1;
	else
	return 0;
	}

	static const unsigned int max9877_pgain_tlv[] = {
	TLV_DB_RANGE_HEAD(2),
	0, 1, TLV_DB_SCALE_ITEM(0, 900, 0),
	2, 2, TLV_DB_SCALE_ITEM(2000, 0, 0),
	};

	static const unsigned int max9877_output_tlv[] = {
	TLV_DB_RANGE_HEAD(4),
	0, 7, TLV_DB_SCALE_ITEM(-7900, 400, 1),
	8, 15, TLV_DB_SCALE_ITEM(-4700, 300, 0),
	16, 23, TLV_DB_SCALE_ITEM(-2300, 200, 0),
	24, 31, TLV_DB_SCALE_ITEM(-700, 100, 0),
	};

	static const char *max9877_out_mode[] = {
	"INA -> SPK",
	"INA -> HP",
	"INA -> SPK and HP",
	"INB -> SPK",
	"INB -> HP",
	"INB -> SPK and HP",
	"INA + INB -> SPK",
	"INA + INB -> HP",
	"INA + INB -> SPK and HP",
	};

	static const char *max9877_osc_mode[] = {
	"1176KHz",
	"1100KHz",
	"700KHz",
	};

	static const struct soc_enum max9877_enum[] = {
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max9877_out_mode), max9877_out_mode),
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(max9877_osc_mode), max9877_osc_mode),
	};

	static const struct snd_kcontrol_new max9877_controls[] = {
	SOC_SINGLE_EXT_TLV("MAX9877 PGAINA Playback Volume",
	MAX9877_INPUT_MODE, 0, 2, 0,
	max9877_get_reg, max9877_set_reg, max9877_pgain_tlv),
	SOC_SINGLE_EXT_TLV("MAX9877 PGAINB Playback Volume",
	MAX9877_INPUT_MODE, 2, 2, 0,
	max9877_get_reg, max9877_set_reg, max9877_pgain_tlv),
	SOC_SINGLE_EXT_TLV("MAX9877 Amp Speaker Playback Volume",
	MAX9877_SPK_VOLUME, 0, 31, 0,
	max9877_get_reg, max9877_set_reg, max9877_output_tlv),
	SOC_DOUBLE_R_EXT_TLV("MAX9877 Amp HP Playback Volume",
	MAX9877_HPL_VOLUME, MAX9877_HPR_VOLUME, 0, 31, 0,
	max9877_get_2reg, max9877_set_2reg, max9877_output_tlv),
	SOC_SINGLE_EXT("MAX9877 INB Stereo Switch",
	MAX9877_INPUT_MODE, 4, 1, 1,
	max9877_get_reg, max9877_set_reg),
	SOC_SINGLE_EXT("MAX9877 INA Stereo Switch",
	MAX9877_INPUT_MODE, 5, 1, 1,
	max9877_get_reg, max9877_set_reg),
	SOC_SINGLE_EXT("MAX9877 Zero-crossing detection Switch",
	MAX9877_INPUT_MODE, 6, 1, 0,
	max9877_get_reg, max9877_set_reg),
	SOC_SINGLE_EXT("MAX9877 Bypass Mode Switch",
	MAX9877_OUTPUT_MODE, 6, 1, 0,
	max9877_get_reg, max9877_set_reg),
	SOC_SINGLE_EXT("MAX9877 Shutdown Mode Switch",
	MAX9877_OUTPUT_MODE, 7, 1, 1,
	max9877_get_reg, max9877_set_reg),
	SOC_ENUM_EXT("MAX9877 Output Mode", max9877_enum[0],
	max9877_get_out_mode, max9877_set_out_mode),
	SOC_ENUM_EXT("MAX9877 Oscillator Mode", max9877_enum[1],
	max9877_get_osc_mode, max9877_set_osc_mode),
	};

	/* This function is called from ASoC machine driver */
	int max9877_add_controls(struct snd_soc_codec *codec)
	{
	return snd_soc_add_codec_controls(codec, max9877_controls,
	ARRAY_SIZE(max9877_controls));
	}
	EXPORT_SYMBOL_GPL(max9877_add_controls);

	static const struct regmap_config max9877_regmap = {
	.reg_bits = 8,
	.val_bits = 8,

	.reg_defaults = max9877_regs,
	.num_reg_defaults = ARRAY_SIZE(max9877_regs),
	.cache_type = REGCACHE_RBTREE,
	};

	static int max9877_i2c_probe(struct i2c_client *client,
	const struct i2c_device_id *id)
	{
	int i;

	regmap = devm_regmap_init_i2c(client, &max9877_regmap);
	if (IS_ERR(regmap))
	return PTR_ERR(regmap);

	/* Ensure the device is in reset state */
	for (i = 0; i < ARRAY_SIZE(max9877_regs); i++)
	regmap_write(regmap, max9877_regs[i].reg, max9877_regs[i].def);

	return 0;
	}

	static int max9877_i2c_remove(struct i2c_client *client)
	{
	regmap = NULL;

	return 0;
	}

	static const struct i2c_device_id max9877_i2c_id[] = {
	{ "max9877", 0 },
	{ }
	};
	MODULE_DEVICE_TABLE(i2c, max9877_i2c_id);

	static struct i2c_driver max9877_i2c_driver = {
	.driver = {
	.name = "max9877",
	.owner = THIS_MODULE,
	},
	.probe = max9877_i2c_probe,
	.remove = max9877_i2c_remove,
	.id_table = max9877_i2c_id,
	};

	module_i2c_driver(max9877_i2c_driver);

	MODULE_DESCRIPTION("ASoC MAX9877 amp driver");
	MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
	MODULE_LICENSE("GPL");