linux_dsm_epyc7002/sound/soc/codecs/cs4349.c
Kuninori Morimoto b9835ec4a7 ASoC: codec duplicated callback function goes to component on cs4349
codec driver and component driver has duplicated callback functions,
and codec side functions are just copied to component side when
register timing. This was quick-hack, but no longer needed.
This patch moves these functions from codec driver to component driver.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-08 11:57:57 +01:00

394 lines
9.8 KiB
C

/*
* cs4349.c -- CS4349 ALSA Soc Audio driver
*
* Copyright 2015 Cirrus Logic, Inc.
*
* Authors: Tim Howe <Tim.Howe@cirrus.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "cs4349.h"
static const struct reg_default cs4349_reg_defaults[] = {
{ 2, 0x00 }, /* r02 - Mode Control */
{ 3, 0x09 }, /* r03 - Volume, Mixing and Inversion Control */
{ 4, 0x81 }, /* r04 - Mute Control */
{ 5, 0x00 }, /* r05 - Channel A Volume Control */
{ 6, 0x00 }, /* r06 - Channel B Volume Control */
{ 7, 0xB1 }, /* r07 - Ramp and Filter Control */
{ 8, 0x1C }, /* r08 - Misc. Control */
};
/* Private data for the CS4349 */
struct cs4349_private {
struct regmap *regmap;
struct gpio_desc *reset_gpio;
unsigned int mode;
int rate;
};
static bool cs4349_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case CS4349_CHIPID ... CS4349_MISC:
return true;
default:
return false;
}
}
static bool cs4349_writeable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case CS4349_MODE ... CS4349_MISC:
return true;
default:
return false;
}
}
static int cs4349_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int format)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct cs4349_private *cs4349 = snd_soc_codec_get_drvdata(codec);
unsigned int fmt;
fmt = format & SND_SOC_DAIFMT_FORMAT_MASK;
switch (fmt) {
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_RIGHT_J:
cs4349->mode = format & SND_SOC_DAIFMT_FORMAT_MASK;
break;
default:
return -EINVAL;
}
return 0;
}
static int cs4349_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct cs4349_private *cs4349 = snd_soc_codec_get_drvdata(codec);
int fmt, ret;
cs4349->rate = params_rate(params);
switch (cs4349->mode) {
case SND_SOC_DAIFMT_I2S:
fmt = DIF_I2S;
break;
case SND_SOC_DAIFMT_LEFT_J:
fmt = DIF_LEFT_JST;
break;
case SND_SOC_DAIFMT_RIGHT_J:
switch (params_width(params)) {
case 16:
fmt = DIF_RGHT_JST16;
break;
case 24:
fmt = DIF_RGHT_JST24;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
ret = snd_soc_update_bits(codec, CS4349_MODE, DIF_MASK,
MODE_FORMAT(fmt));
if (ret < 0)
return ret;
return 0;
}
static int cs4349_digital_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
int reg;
reg = 0;
if (mute)
reg = MUTE_AB_MASK;
return snd_soc_update_bits(codec, CS4349_MUTE, MUTE_AB_MASK, reg);
}
static DECLARE_TLV_DB_SCALE(dig_tlv, -12750, 50, 0);
static const char * const chan_mix_texts[] = {
"Mute", "MuteA", "MuteA SwapB", "MuteA MonoB", "SwapA MuteB",
"BothR", "Swap", "SwapA MonoB", "MuteB", "Normal", "BothL",
"MonoB", "MonoA MuteB", "MonoA", "MonoA SwapB", "Mono",
/*Normal == Channel A = Left, Channel B = Right*/
};
static const char * const fm_texts[] = {
"Auto", "Single", "Double", "Quad",
};
static const char * const deemph_texts[] = {
"None", "44.1k", "48k", "32k",
};
static const char * const softr_zeroc_texts[] = {
"Immediate", "Zero Cross", "Soft Ramp", "SR on ZC",
};
static int deemph_values[] = {
0, 4, 8, 12,
};
static int softr_zeroc_values[] = {
0, 64, 128, 192,
};
static const struct soc_enum chan_mix_enum =
SOC_ENUM_SINGLE(CS4349_VMI, 0,
ARRAY_SIZE(chan_mix_texts),
chan_mix_texts);
static const struct soc_enum fm_mode_enum =
SOC_ENUM_SINGLE(CS4349_MODE, 0,
ARRAY_SIZE(fm_texts),
fm_texts);
static SOC_VALUE_ENUM_SINGLE_DECL(deemph_enum, CS4349_MODE, 0, DEM_MASK,
deemph_texts, deemph_values);
static SOC_VALUE_ENUM_SINGLE_DECL(softr_zeroc_enum, CS4349_RMPFLT, 0,
SR_ZC_MASK, softr_zeroc_texts,
softr_zeroc_values);
static const struct snd_kcontrol_new cs4349_snd_controls[] = {
SOC_DOUBLE_R_TLV("Master Playback Volume",
CS4349_VOLA, CS4349_VOLB, 0, 0xFF, 1, dig_tlv),
SOC_ENUM("Functional Mode", fm_mode_enum),
SOC_ENUM("De-Emphasis Control", deemph_enum),
SOC_ENUM("Soft Ramp Zero Cross Control", softr_zeroc_enum),
SOC_ENUM("Channel Mixer", chan_mix_enum),
SOC_SINGLE("VolA = VolB Switch", CS4349_VMI, 7, 1, 0),
SOC_SINGLE("InvertA Switch", CS4349_VMI, 6, 1, 0),
SOC_SINGLE("InvertB Switch", CS4349_VMI, 5, 1, 0),
SOC_SINGLE("Auto-Mute Switch", CS4349_MUTE, 7, 1, 0),
SOC_SINGLE("MUTEC A = B Switch", CS4349_MUTE, 5, 1, 0),
SOC_SINGLE("Soft Ramp Up Switch", CS4349_RMPFLT, 5, 1, 0),
SOC_SINGLE("Soft Ramp Down Switch", CS4349_RMPFLT, 4, 1, 0),
SOC_SINGLE("Slow Roll Off Filter Switch", CS4349_RMPFLT, 2, 1, 0),
SOC_SINGLE("Freeze Switch", CS4349_MISC, 5, 1, 0),
SOC_SINGLE("Popguard Switch", CS4349_MISC, 4, 1, 0),
};
static const struct snd_soc_dapm_widget cs4349_dapm_widgets[] = {
SND_SOC_DAPM_DAC("HiFi DAC", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_OUTPUT("OutputA"),
SND_SOC_DAPM_OUTPUT("OutputB"),
};
static const struct snd_soc_dapm_route cs4349_routes[] = {
{"DAC Playback", NULL, "OutputA"},
{"DAC Playback", NULL, "OutputB"},
{"OutputA", NULL, "HiFi DAC"},
{"OutputB", NULL, "HiFi DAC"},
};
#define CS4349_PCM_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | \
SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE | \
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE | \
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE | \
SNDRV_PCM_FMTBIT_S32_LE)
#define CS4349_PCM_RATES SNDRV_PCM_RATE_8000_192000
static const struct snd_soc_dai_ops cs4349_dai_ops = {
.hw_params = cs4349_pcm_hw_params,
.set_fmt = cs4349_set_dai_fmt,
.digital_mute = cs4349_digital_mute,
};
static struct snd_soc_dai_driver cs4349_dai = {
.name = "cs4349_hifi",
.playback = {
.stream_name = "DAC Playback",
.channels_min = 1,
.channels_max = 2,
.rates = CS4349_PCM_RATES,
.formats = CS4349_PCM_FORMATS,
},
.ops = &cs4349_dai_ops,
.symmetric_rates = 1,
};
static struct snd_soc_codec_driver soc_codec_dev_cs4349 = {
.component_driver = {
.controls = cs4349_snd_controls,
.num_controls = ARRAY_SIZE(cs4349_snd_controls),
.dapm_widgets = cs4349_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(cs4349_dapm_widgets),
.dapm_routes = cs4349_routes,
.num_dapm_routes = ARRAY_SIZE(cs4349_routes),
},
};
static const struct regmap_config cs4349_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = CS4349_MISC,
.reg_defaults = cs4349_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(cs4349_reg_defaults),
.readable_reg = cs4349_readable_register,
.writeable_reg = cs4349_writeable_register,
.cache_type = REGCACHE_RBTREE,
};
static int cs4349_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct cs4349_private *cs4349;
int ret;
cs4349 = devm_kzalloc(&client->dev, sizeof(*cs4349), GFP_KERNEL);
if (!cs4349)
return -ENOMEM;
cs4349->regmap = devm_regmap_init_i2c(client, &cs4349_regmap);
if (IS_ERR(cs4349->regmap)) {
ret = PTR_ERR(cs4349->regmap);
dev_err(&client->dev, "regmap_init() failed: %d\n", ret);
return ret;
}
/* Reset the Device */
cs4349->reset_gpio = devm_gpiod_get_optional(&client->dev,
"reset", GPIOD_OUT_LOW);
if (IS_ERR(cs4349->reset_gpio))
return PTR_ERR(cs4349->reset_gpio);
gpiod_set_value_cansleep(cs4349->reset_gpio, 1);
i2c_set_clientdata(client, cs4349);
return snd_soc_register_codec(&client->dev, &soc_codec_dev_cs4349,
&cs4349_dai, 1);
}
static int cs4349_i2c_remove(struct i2c_client *client)
{
struct cs4349_private *cs4349 = i2c_get_clientdata(client);
snd_soc_unregister_codec(&client->dev);
/* Hold down reset */
gpiod_set_value_cansleep(cs4349->reset_gpio, 0);
return 0;
}
#ifdef CONFIG_PM
static int cs4349_runtime_suspend(struct device *dev)
{
struct cs4349_private *cs4349 = dev_get_drvdata(dev);
int ret;
ret = regmap_update_bits(cs4349->regmap, CS4349_MISC, PWR_DWN, PWR_DWN);
if (ret < 0)
return ret;
regcache_cache_only(cs4349->regmap, true);
/* Hold down reset */
gpiod_set_value_cansleep(cs4349->reset_gpio, 0);
return 0;
}
static int cs4349_runtime_resume(struct device *dev)
{
struct cs4349_private *cs4349 = dev_get_drvdata(dev);
int ret;
ret = regmap_update_bits(cs4349->regmap, CS4349_MISC, PWR_DWN, 0);
if (ret < 0)
return ret;
gpiod_set_value_cansleep(cs4349->reset_gpio, 1);
regcache_cache_only(cs4349->regmap, false);
regcache_sync(cs4349->regmap);
return 0;
}
#endif
static const struct dev_pm_ops cs4349_runtime_pm = {
SET_RUNTIME_PM_OPS(cs4349_runtime_suspend, cs4349_runtime_resume,
NULL)
};
static const struct of_device_id cs4349_of_match[] = {
{ .compatible = "cirrus,cs4349", },
{},
};
MODULE_DEVICE_TABLE(of, cs4349_of_match);
static const struct i2c_device_id cs4349_i2c_id[] = {
{"cs4349", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, cs4349_i2c_id);
static struct i2c_driver cs4349_i2c_driver = {
.driver = {
.name = "cs4349",
.of_match_table = cs4349_of_match,
},
.id_table = cs4349_i2c_id,
.probe = cs4349_i2c_probe,
.remove = cs4349_i2c_remove,
};
module_i2c_driver(cs4349_i2c_driver);
MODULE_AUTHOR("Tim Howe <tim.howe@cirrus.com>");
MODULE_DESCRIPTION("Cirrus Logic CS4349 ALSA SoC Codec Driver");
MODULE_LICENSE("GPL");