[mirror_ubuntu-bionic-kernel.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 const struct reg_default max9877_regs[] = {
	{ 0, 0x40 },
	{ 1, 0x00 },
	{ 2, 0x00 },
	{ 3, 0x00 },
	{ 4, 0x49 },
};

static const DECLARE_TLV_DB_RANGE(max9877_pgain_tlv,
	0, 1, TLV_DB_SCALE_ITEM(0, 900, 0),
	2, 2, TLV_DB_SCALE_ITEM(2000, 0, 0)
);

static const DECLARE_TLV_DB_RANGE(max9877_output_tlv,
	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_component_driver max9877_component_driver = {
	.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)
{
	struct regmap *regmap;
	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 devm_snd_soc_register_component(&client->dev,
			&max9877_component_driver, NULL, 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",
	},
	.probe = max9877_i2c_probe,
	.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
c418a84a	23	static const struct reg_default max9877_regs[] = {
997288e3 MB	24	{ 0, 0x40 },
	25	{ 1, 0x00 },
	26	{ 2, 0x00 },
	27	{ 3, 0x00 },
	28	{ 4, 0x49 },
	29	};
9db9ed97	30
d6e3bb7a	31	static const DECLARE_TLV_DB_RANGE(max9877_pgain_tlv,
9db9ed97	32	0, 1, TLV_DB_SCALE_ITEM(0, 900, 0),
d6e3bb7a LPC	33	2, 2, TLV_DB_SCALE_ITEM(2000, 0, 0)
d6e3bb7a LPC	34	);
9db9ed97	35
d6e3bb7a	36	static const DECLARE_TLV_DB_RANGE(max9877_output_tlv,
9db9ed97 JS	37	0, 7, TLV_DB_SCALE_ITEM(-7900, 400, 1),
	38	8, 15, TLV_DB_SCALE_ITEM(-4700, 300, 0),
	39	16, 23, TLV_DB_SCALE_ITEM(-2300, 200, 0),
d6e3bb7a LPC	40	24, 31, TLV_DB_SCALE_ITEM(-700, 100, 0)
d6e3bb7a LPC	41	);
9db9ed97 JS	42
	43	static const char *max9877_out_mode[] = {
	44	"INA -> SPK",
	45	"INA -> HP",
	46	"INA -> SPK and HP",
	47	"INB -> SPK",
	48	"INB -> HP",
	49	"INB -> SPK and HP",
	50	"INA + INB -> SPK",
	51	"INA + INB -> HP",
	52	"INA + INB -> SPK and HP",
	53	};
	54
	55	static const char *max9877_osc_mode[] = {
	56	"1176KHz",
	57	"1100KHz",
	58	"700KHz",
	59	};
	60
	61	static const struct soc_enum max9877_enum[] = {
d76a9617 MB	62	SOC_ENUM_SINGLE(MAX9877_OUTPUT_MODE, 0, ARRAY_SIZE(max9877_out_mode),
	63	max9877_out_mode),
	64	SOC_ENUM_SINGLE(MAX9877_OUTPUT_MODE, MAX9877_OSC_OFFSET,
	65	ARRAY_SIZE(max9877_osc_mode), max9877_osc_mode),
9db9ed97 JS	66	};
	67
	68	static const struct snd_kcontrol_new max9877_controls[] = {
d76a9617 MB	69	SOC_SINGLE_TLV("MAX9877 PGAINA Playback Volume",
	70	MAX9877_INPUT_MODE, 0, 2, 0, max9877_pgain_tlv),
	71	SOC_SINGLE_TLV("MAX9877 PGAINB Playback Volume",
	72	MAX9877_INPUT_MODE, 2, 2, 0, max9877_pgain_tlv),
	73	SOC_SINGLE_TLV("MAX9877 Amp Speaker Playback Volume",
	74	MAX9877_SPK_VOLUME, 0, 31, 0, max9877_output_tlv),
	75	SOC_DOUBLE_R_TLV("MAX9877 Amp HP Playback Volume",
	76	MAX9877_HPL_VOLUME, MAX9877_HPR_VOLUME, 0, 31, 0,
	77	max9877_output_tlv),
	78	SOC_SINGLE("MAX9877 INB Stereo Switch",
	79	MAX9877_INPUT_MODE, 4, 1, 1),
	80	SOC_SINGLE("MAX9877 INA Stereo Switch",
	81	MAX9877_INPUT_MODE, 5, 1, 1),
	82	SOC_SINGLE("MAX9877 Zero-crossing detection Switch",
	83	MAX9877_INPUT_MODE, 6, 1, 0),
	84	SOC_SINGLE("MAX9877 Bypass Mode Switch",
	85	MAX9877_OUTPUT_MODE, 6, 1, 0),
d76a9617 MB	86	SOC_ENUM("MAX9877 Output Mode", max9877_enum[0]),
d76a9617 MB	87	SOC_ENUM("MAX9877 Oscillator Mode", max9877_enum[1]),
9db9ed97 JS	88	};
9db9ed97 JS	89
5cf9da8a MB	90	static const struct snd_soc_dapm_widget max9877_dapm_widgets[] = {
	91	SND_SOC_DAPM_INPUT("INA1"),
	92	SND_SOC_DAPM_INPUT("INA2"),
	93	SND_SOC_DAPM_INPUT("INB1"),
	94	SND_SOC_DAPM_INPUT("INB2"),
	95	SND_SOC_DAPM_INPUT("RXIN+"),
	96	SND_SOC_DAPM_INPUT("RXIN-"),
	97
	98	SND_SOC_DAPM_PGA("SHDN", MAX9877_OUTPUT_MODE, 7, 1, NULL, 0),
	99
	100	SND_SOC_DAPM_OUTPUT("OUT+"),
	101	SND_SOC_DAPM_OUTPUT("OUT-"),
	102	SND_SOC_DAPM_OUTPUT("HPL"),
	103	SND_SOC_DAPM_OUTPUT("HPR"),
	104	};
	105
	106	static const struct snd_soc_dapm_route max9877_dapm_routes[] = {
	107	{ "SHDN", NULL, "INA1" },
	108	{ "SHDN", NULL, "INA2" },
	109	{ "SHDN", NULL, "INB1" },
	110	{ "SHDN", NULL, "INB2" },
	111
	112	{ "OUT+", NULL, "RXIN+" },
	113	{ "OUT+", NULL, "SHDN" },
	114
	115	{ "OUT-", NULL, "SHDN" },
	116	{ "OUT-", NULL, "RXIN-" },
	117
	118	{ "HPL", NULL, "SHDN" },
	119	{ "HPR", NULL, "SHDN" },
	120	};
	121
623436af	122	static const struct snd_soc_component_driver max9877_component_driver = {
d76a9617 MB	123	.controls = max9877_controls,
d76a9617 MB	124	.num_controls = ARRAY_SIZE(max9877_controls),
5cf9da8a MB	125
	126	.dapm_widgets = max9877_dapm_widgets,
	127	.num_dapm_widgets = ARRAY_SIZE(max9877_dapm_widgets),
	128	.dapm_routes = max9877_dapm_routes,
	129	.num_dapm_routes = ARRAY_SIZE(max9877_dapm_routes),
d76a9617	130	};
9db9ed97	131
997288e3 MB	132	static const struct regmap_config max9877_regmap = {
	133	.reg_bits = 8,
	134	.val_bits = 8,
	135
	136	.reg_defaults = max9877_regs,
	137	.num_reg_defaults = ARRAY_SIZE(max9877_regs),
	138	.cache_type = REGCACHE_RBTREE,
	139	};
	140
7a79e94e BP	141	static int max9877_i2c_probe(struct i2c_client *client,
7a79e94e BP	142	const struct i2c_device_id *id)
9db9ed97	143	{
df2e2682	144	struct regmap *regmap;
997288e3 MB	145	int i;
	146
	147	regmap = devm_regmap_init_i2c(client, &max9877_regmap);
	148	if (IS_ERR(regmap))
	149	return PTR_ERR(regmap);
9db9ed97	150
997288e3 MB	151	/* Ensure the device is in reset state */
	152	for (i = 0; i < ARRAY_SIZE(max9877_regs); i++)
	153	regmap_write(regmap, max9877_regs[i].reg, max9877_regs[i].def);
9db9ed97	154
623436af LPC	155	return devm_snd_soc_register_component(&client->dev,
623436af LPC	156	&max9877_component_driver, NULL, 0);
9db9ed97 JS	157	}
	158
	159	static const struct i2c_device_id max9877_i2c_id[] = {
	160	{ "max9877", 0 },
	161	{ }
	162	};
	163	MODULE_DEVICE_TABLE(i2c, max9877_i2c_id);
	164
	165	static struct i2c_driver max9877_i2c_driver = {
	166	.driver = {
	167	.name = "max9877",
9db9ed97 JS	168	},
9db9ed97 JS	169	.probe = max9877_i2c_probe,
9db9ed97 JS	170	.id_table = max9877_i2c_id,
	171	};
	172
a3627e9c	173	module_i2c_driver(max9877_i2c_driver);
9db9ed97 JS	174
	175	MODULE_DESCRIPTION("ASoC MAX9877 amp driver");
	176	MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
	177	MODULE_LICENSE("GPL");