[deliverable/linux.git] / sound / soc / codecs / max9877.c

/*
 * 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 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(MAX9877_OUTPUT_MODE, 0, ARRAY_SIZE(max9877_out_mode),
			max9877_out_mode),
	SOC_ENUM_SINGLE(MAX9877_OUTPUT_MODE, MAX9877_OSC_OFFSET,
			ARRAY_SIZE(max9877_osc_mode), max9877_osc_mode),
};

static const struct snd_kcontrol_new max9877_controls[] = {
	SOC_SINGLE_TLV("MAX9877 PGAINA Playback Volume",
		       MAX9877_INPUT_MODE, 0, 2, 0, max9877_pgain_tlv),
	SOC_SINGLE_TLV("MAX9877 PGAINB Playback Volume",
		       MAX9877_INPUT_MODE, 2, 2, 0, max9877_pgain_tlv),
	SOC_SINGLE_TLV("MAX9877 Amp Speaker Playback Volume",
		       MAX9877_SPK_VOLUME, 0, 31, 0, max9877_output_tlv),
	SOC_DOUBLE_R_TLV("MAX9877 Amp HP Playback Volume",
			 MAX9877_HPL_VOLUME, MAX9877_HPR_VOLUME, 0, 31, 0,
			 max9877_output_tlv),
	SOC_SINGLE("MAX9877 INB Stereo Switch",
		   MAX9877_INPUT_MODE, 4, 1, 1),
	SOC_SINGLE("MAX9877 INA Stereo Switch",
		   MAX9877_INPUT_MODE, 5, 1, 1),
	SOC_SINGLE("MAX9877 Zero-crossing detection Switch",
		   MAX9877_INPUT_MODE, 6, 1, 0),
	SOC_SINGLE("MAX9877 Bypass Mode Switch",
		   MAX9877_OUTPUT_MODE, 6, 1, 0),
	SOC_ENUM("MAX9877 Output Mode", max9877_enum[0]),
	SOC_ENUM("MAX9877 Oscillator Mode", max9877_enum[1]),
};

static const struct snd_soc_dapm_widget max9877_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("INA1"),
SND_SOC_DAPM_INPUT("INA2"),
SND_SOC_DAPM_INPUT("INB1"),
SND_SOC_DAPM_INPUT("INB2"),
SND_SOC_DAPM_INPUT("RXIN+"),
SND_SOC_DAPM_INPUT("RXIN-"),

SND_SOC_DAPM_PGA("SHDN", MAX9877_OUTPUT_MODE, 7, 1, NULL, 0),

SND_SOC_DAPM_OUTPUT("OUT+"),
SND_SOC_DAPM_OUTPUT("OUT-"),
SND_SOC_DAPM_OUTPUT("HPL"),
SND_SOC_DAPM_OUTPUT("HPR"),
};

static const struct snd_soc_dapm_route max9877_dapm_routes[] = {
	{ "SHDN", NULL, "INA1" },
	{ "SHDN", NULL, "INA2" },
	{ "SHDN", NULL, "INB1" },
	{ "SHDN", NULL, "INB2" },

	{ "OUT+", NULL, "RXIN+" },
	{ "OUT+", NULL, "SHDN" },

	{ "OUT-", NULL, "SHDN" },
	{ "OUT-", NULL, "RXIN-" },

	{ "HPL", NULL, "SHDN" },
	{ "HPR", NULL, "SHDN" },
};

static const struct snd_soc_codec_driver max9877_codec = {
	.controls = max9877_controls,
	.num_controls = ARRAY_SIZE(max9877_controls),

	.dapm_widgets = max9877_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(max9877_dapm_widgets),
	.dapm_routes = max9877_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(max9877_dapm_routes),
};

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 snd_soc_register_codec(&client->dev, &max9877_codec, NULL, 0);
}

static int max9877_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);

	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");
Commit	Line	Data
9db9ed97 JS	1	/*
	2	* max9877.c -- amp driver for max9877
	3	*
	4	* Copyright (C) 2009 Samsung Electronics Co.Ltd
	5	* Author: Joonyoung Shim <jy0922.shim@samsung.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2 of the License, or (at your
	10	* option) any later version.
	11	*
	12	*/
	13
	14	#include <linux/module.h>
	15	#include <linux/init.h>
	16	#include <linux/i2c.h>
997288e3	17	#include <linux/regmap.h>
9db9ed97 JS	18	#include <sound/soc.h>
	19	#include <sound/tlv.h>
	20
	21	#include "max9877.h"
	22
997288e3	23	static struct regmap *regmap;
9db9ed97	24
997288e3 MB	25	static struct reg_default max9877_regs[] = {
	26	{ 0, 0x40 },
	27	{ 1, 0x00 },
	28	{ 2, 0x00 },
	29	{ 3, 0x00 },
	30	{ 4, 0x49 },
	31	};
9db9ed97	32
9db9ed97 JS	33	static const unsigned int max9877_pgain_tlv[] = {
	34	TLV_DB_RANGE_HEAD(2),
	35	0, 1, TLV_DB_SCALE_ITEM(0, 900, 0),
	36	2, 2, TLV_DB_SCALE_ITEM(2000, 0, 0),
	37	};
	38
	39	static const unsigned int max9877_output_tlv[] = {
	40	TLV_DB_RANGE_HEAD(4),
	41	0, 7, TLV_DB_SCALE_ITEM(-7900, 400, 1),
	42	8, 15, TLV_DB_SCALE_ITEM(-4700, 300, 0),
	43	16, 23, TLV_DB_SCALE_ITEM(-2300, 200, 0),
	44	24, 31, TLV_DB_SCALE_ITEM(-700, 100, 0),
	45	};
	46
	47	static const char *max9877_out_mode[] = {
	48	"INA -> SPK",
	49	"INA -> HP",
	50	"INA -> SPK and HP",
	51	"INB -> SPK",
	52	"INB -> HP",
	53	"INB -> SPK and HP",
	54	"INA + INB -> SPK",
	55	"INA + INB -> HP",
	56	"INA + INB -> SPK and HP",
	57	};
	58
	59	static const char *max9877_osc_mode[] = {
	60	"1176KHz",
	61	"1100KHz",
	62	"700KHz",
	63	};
	64
	65	static const struct soc_enum max9877_enum[] = {
d76a9617 MB	66	SOC_ENUM_SINGLE(MAX9877_OUTPUT_MODE, 0, ARRAY_SIZE(max9877_out_mode),
	67	max9877_out_mode),
	68	SOC_ENUM_SINGLE(MAX9877_OUTPUT_MODE, MAX9877_OSC_OFFSET,
	69	ARRAY_SIZE(max9877_osc_mode), max9877_osc_mode),
9db9ed97 JS	70	};
	71
	72	static const struct snd_kcontrol_new max9877_controls[] = {
d76a9617 MB	73	SOC_SINGLE_TLV("MAX9877 PGAINA Playback Volume",
	74	MAX9877_INPUT_MODE, 0, 2, 0, max9877_pgain_tlv),
	75	SOC_SINGLE_TLV("MAX9877 PGAINB Playback Volume",
	76	MAX9877_INPUT_MODE, 2, 2, 0, max9877_pgain_tlv),
	77	SOC_SINGLE_TLV("MAX9877 Amp Speaker Playback Volume",
	78	MAX9877_SPK_VOLUME, 0, 31, 0, max9877_output_tlv),
	79	SOC_DOUBLE_R_TLV("MAX9877 Amp HP Playback Volume",
	80	MAX9877_HPL_VOLUME, MAX9877_HPR_VOLUME, 0, 31, 0,
	81	max9877_output_tlv),
	82	SOC_SINGLE("MAX9877 INB Stereo Switch",
	83	MAX9877_INPUT_MODE, 4, 1, 1),
	84	SOC_SINGLE("MAX9877 INA Stereo Switch",
	85	MAX9877_INPUT_MODE, 5, 1, 1),
	86	SOC_SINGLE("MAX9877 Zero-crossing detection Switch",
	87	MAX9877_INPUT_MODE, 6, 1, 0),
	88	SOC_SINGLE("MAX9877 Bypass Mode Switch",
	89	MAX9877_OUTPUT_MODE, 6, 1, 0),
d76a9617 MB	90	SOC_ENUM("MAX9877 Output Mode", max9877_enum[0]),
d76a9617 MB	91	SOC_ENUM("MAX9877 Oscillator Mode", max9877_enum[1]),
9db9ed97 JS	92	};
9db9ed97 JS	93
5cf9da8a MB	94	static const struct snd_soc_dapm_widget max9877_dapm_widgets[] = {
	95	SND_SOC_DAPM_INPUT("INA1"),
	96	SND_SOC_DAPM_INPUT("INA2"),
	97	SND_SOC_DAPM_INPUT("INB1"),
	98	SND_SOC_DAPM_INPUT("INB2"),
	99	SND_SOC_DAPM_INPUT("RXIN+"),
	100	SND_SOC_DAPM_INPUT("RXIN-"),
	101
	102	SND_SOC_DAPM_PGA("SHDN", MAX9877_OUTPUT_MODE, 7, 1, NULL, 0),
	103
	104	SND_SOC_DAPM_OUTPUT("OUT+"),
	105	SND_SOC_DAPM_OUTPUT("OUT-"),
	106	SND_SOC_DAPM_OUTPUT("HPL"),
	107	SND_SOC_DAPM_OUTPUT("HPR"),
	108	};
	109
	110	static const struct snd_soc_dapm_route max9877_dapm_routes[] = {
	111	{ "SHDN", NULL, "INA1" },
	112	{ "SHDN", NULL, "INA2" },
	113	{ "SHDN", NULL, "INB1" },
	114	{ "SHDN", NULL, "INB2" },
	115
	116	{ "OUT+", NULL, "RXIN+" },
	117	{ "OUT+", NULL, "SHDN" },
	118
	119	{ "OUT-", NULL, "SHDN" },
	120	{ "OUT-", NULL, "RXIN-" },
	121
	122	{ "HPL", NULL, "SHDN" },
	123	{ "HPR", NULL, "SHDN" },
	124	};
	125
d76a9617 MB	126	static const struct snd_soc_codec_driver max9877_codec = {
	127	.controls = max9877_controls,
	128	.num_controls = ARRAY_SIZE(max9877_controls),
5cf9da8a MB	129
	130	.dapm_widgets = max9877_dapm_widgets,
	131	.num_dapm_widgets = ARRAY_SIZE(max9877_dapm_widgets),
	132	.dapm_routes = max9877_dapm_routes,
	133	.num_dapm_routes = ARRAY_SIZE(max9877_dapm_routes),
d76a9617	134	};
9db9ed97	135
997288e3 MB	136	static const struct regmap_config max9877_regmap = {
	137	.reg_bits = 8,
	138	.val_bits = 8,
	139
	140	.reg_defaults = max9877_regs,
	141	.num_reg_defaults = ARRAY_SIZE(max9877_regs),
	142	.cache_type = REGCACHE_RBTREE,
	143	};
	144
7a79e94e BP	145	static int max9877_i2c_probe(struct i2c_client *client,
7a79e94e BP	146	const struct i2c_device_id *id)
9db9ed97	147	{
997288e3 MB	148	int i;
	149
	150	regmap = devm_regmap_init_i2c(client, &max9877_regmap);
	151	if (IS_ERR(regmap))
	152	return PTR_ERR(regmap);
9db9ed97	153
997288e3 MB	154	/* Ensure the device is in reset state */
	155	for (i = 0; i < ARRAY_SIZE(max9877_regs); i++)
	156	regmap_write(regmap, max9877_regs[i].reg, max9877_regs[i].def);
9db9ed97	157
d76a9617	158	return snd_soc_register_codec(&client->dev, &max9877_codec, NULL, 0);
9db9ed97 JS	159	}
9db9ed97 JS	160
7a79e94e	161	static int max9877_i2c_remove(struct i2c_client *client)
9db9ed97	162	{
d76a9617	163	snd_soc_unregister_codec(&client->dev);
9db9ed97 JS	164
	165	return 0;
	166	}
	167
	168	static const struct i2c_device_id max9877_i2c_id[] = {
	169	{ "max9877", 0 },
	170	{ }
	171	};
	172	MODULE_DEVICE_TABLE(i2c, max9877_i2c_id);
	173
	174	static struct i2c_driver max9877_i2c_driver = {
	175	.driver = {
	176	.name = "max9877",
	177	.owner = THIS_MODULE,
	178	},
	179	.probe = max9877_i2c_probe,
7a79e94e	180	.remove = max9877_i2c_remove,
9db9ed97 JS	181	.id_table = max9877_i2c_id,
	182	};
	183
a3627e9c	184	module_i2c_driver(max9877_i2c_driver);
9db9ed97 JS	185
	186	MODULE_DESCRIPTION("ASoC MAX9877 amp driver");
	187	MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
	188	MODULE_LICENSE("GPL");