173 lines
4.5 KiB
C
173 lines
4.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* max9877.c -- amp driver for max9877
|
|
*
|
|
* Copyright (C) 2009 Samsung Electronics Co.Ltd
|
|
* Author: Joonyoung Shim <jy0922.shim@samsung.com>
|
|
*/
|
|
|
|
#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");
|