linux/sound/soc/codecs/max9877.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

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");