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linux/sound/soc/codecs/max98371.c
Mark Brown 012df28f5e
ASoC: max98371: Use modern ASoC DAI format terminology 
As part of moving to remove the old style defines for the bus clocks update
the max98371 driver to use more modern terminology for clocking.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220222234026.712070-3-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28 13:34:07 +00:00

433 lines
11 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/*
* max98371.c -- ALSA SoC Stereo MAX98371 driver
*
* Copyright 2015-16 Maxim Integrated Products
*/
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "max98371.h"
static const char *const monomix_text[] = {
"Left", "Right", "LeftRightDiv2",
};
static const char *const hpf_cutoff_txt[] = {
"Disable", "DC Block", "50Hz",
"100Hz", "200Hz", "400Hz", "800Hz",
};
static SOC_ENUM_SINGLE_DECL(max98371_monomix, MAX98371_MONOMIX_CFG, 0,
monomix_text);
static SOC_ENUM_SINGLE_DECL(max98371_hpf_cutoff, MAX98371_HPF, 0,
hpf_cutoff_txt);
static const DECLARE_TLV_DB_RANGE(max98371_dht_min_gain,
0, 1, TLV_DB_SCALE_ITEM(537, 66, 0),
2, 3, TLV_DB_SCALE_ITEM(677, 82, 0),
4, 5, TLV_DB_SCALE_ITEM(852, 104, 0),
6, 7, TLV_DB_SCALE_ITEM(1072, 131, 0),
8, 9, TLV_DB_SCALE_ITEM(1350, 165, 0),
10, 11, TLV_DB_SCALE_ITEM(1699, 101, 0),
);
static const DECLARE_TLV_DB_RANGE(max98371_dht_max_gain,
0, 1, TLV_DB_SCALE_ITEM(537, 66, 0),
2, 3, TLV_DB_SCALE_ITEM(677, 82, 0),
4, 5, TLV_DB_SCALE_ITEM(852, 104, 0),
6, 7, TLV_DB_SCALE_ITEM(1072, 131, 0),
8, 9, TLV_DB_SCALE_ITEM(1350, 165, 0),
10, 11, TLV_DB_SCALE_ITEM(1699, 208, 0),
);
static const DECLARE_TLV_DB_RANGE(max98371_dht_rot_gain,
0, 1, TLV_DB_SCALE_ITEM(-50, -50, 0),
2, 6, TLV_DB_SCALE_ITEM(-100, -100, 0),
7, 8, TLV_DB_SCALE_ITEM(-800, -200, 0),
9, 11, TLV_DB_SCALE_ITEM(-1200, -300, 0),
12, 13, TLV_DB_SCALE_ITEM(-2000, -200, 0),
14, 15, TLV_DB_SCALE_ITEM(-2500, -500, 0),
);
static const struct reg_default max98371_reg[] = {
{ 0x01, 0x00 },
{ 0x02, 0x00 },
{ 0x03, 0x00 },
{ 0x04, 0x00 },
{ 0x05, 0x00 },
{ 0x06, 0x00 },
{ 0x07, 0x00 },
{ 0x08, 0x00 },
{ 0x09, 0x00 },
{ 0x0A, 0x00 },
{ 0x10, 0x06 },
{ 0x11, 0x08 },
{ 0x14, 0x80 },
{ 0x15, 0x00 },
{ 0x16, 0x00 },
{ 0x18, 0x00 },
{ 0x19, 0x00 },
{ 0x1C, 0x00 },
{ 0x1D, 0x00 },
{ 0x1E, 0x00 },
{ 0x1F, 0x00 },
{ 0x20, 0x00 },
{ 0x21, 0x00 },
{ 0x22, 0x00 },
{ 0x23, 0x00 },
{ 0x24, 0x00 },
{ 0x25, 0x00 },
{ 0x26, 0x00 },
{ 0x27, 0x00 },
{ 0x28, 0x00 },
{ 0x29, 0x00 },
{ 0x2A, 0x00 },
{ 0x2B, 0x00 },
{ 0x2C, 0x00 },
{ 0x2D, 0x00 },
{ 0x2E, 0x0B },
{ 0x31, 0x00 },
{ 0x32, 0x18 },
{ 0x33, 0x00 },
{ 0x34, 0x00 },
{ 0x36, 0x00 },
{ 0x37, 0x00 },
{ 0x38, 0x00 },
{ 0x39, 0x00 },
{ 0x3A, 0x00 },
{ 0x3B, 0x00 },
{ 0x3C, 0x00 },
{ 0x3D, 0x00 },
{ 0x3E, 0x00 },
{ 0x3F, 0x00 },
{ 0x40, 0x00 },
{ 0x41, 0x00 },
{ 0x42, 0x00 },
{ 0x43, 0x00 },
{ 0x4A, 0x00 },
{ 0x4B, 0x00 },
{ 0x4C, 0x00 },
{ 0x4D, 0x00 },
{ 0x4E, 0x00 },
{ 0x50, 0x00 },
{ 0x51, 0x00 },
{ 0x55, 0x00 },
{ 0x58, 0x00 },
{ 0x59, 0x00 },
{ 0x5C, 0x00 },
{ 0xFF, 0x43 },
};
static bool max98371_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case MAX98371_IRQ_CLEAR1:
case MAX98371_IRQ_CLEAR2:
case MAX98371_IRQ_CLEAR3:
case MAX98371_VERSION:
return true;
default:
return false;
}
}
static bool max98371_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case MAX98371_SOFT_RESET:
return false;
default:
return true;
}
};
static const DECLARE_TLV_DB_RANGE(max98371_gain_tlv,
0, 7, TLV_DB_SCALE_ITEM(0, 50, 0),
8, 10, TLV_DB_SCALE_ITEM(400, 100, 0)
);
static const DECLARE_TLV_DB_SCALE(digital_tlv, -6300, 50, 1);
static const struct snd_kcontrol_new max98371_snd_controls[] = {
SOC_SINGLE_TLV("Speaker Volume", MAX98371_GAIN,
MAX98371_GAIN_SHIFT, (1<<MAX98371_GAIN_WIDTH)-1, 0,
max98371_gain_tlv),
SOC_SINGLE_TLV("Digital Volume", MAX98371_DIGITAL_GAIN, 0,
(1<<MAX98371_DIGITAL_GAIN_WIDTH)-1, 1, digital_tlv),
SOC_SINGLE_TLV("Speaker DHT Max Volume", MAX98371_GAIN,
0, (1<<MAX98371_DHT_MAX_WIDTH)-1, 0,
max98371_dht_max_gain),
SOC_SINGLE_TLV("Speaker DHT Min Volume", MAX98371_DHT_GAIN,
0, (1<<MAX98371_DHT_GAIN_WIDTH)-1, 0,
max98371_dht_min_gain),
SOC_SINGLE_TLV("Speaker DHT Rotation Volume", MAX98371_DHT_GAIN,
0, (1<<MAX98371_DHT_ROT_WIDTH)-1, 0,
max98371_dht_rot_gain),
SOC_SINGLE("DHT Attack Step", MAX98371_DHT, MAX98371_DHT_STEP, 3, 0),
SOC_SINGLE("DHT Attack Rate", MAX98371_DHT, 0, 7, 0),
SOC_ENUM("Monomix Select", max98371_monomix),
SOC_ENUM("HPF Cutoff", max98371_hpf_cutoff),
};
static int max98371_dai_set_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
struct max98371_priv *max98371 = snd_soc_component_get_drvdata(component);
unsigned int val = 0;
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBC_CFC:
break;
default:
dev_err(component->dev, "DAI clock mode unsupported");
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
val |= 0;
break;
case SND_SOC_DAIFMT_RIGHT_J:
val |= MAX98371_DAI_RIGHT;
break;
case SND_SOC_DAIFMT_LEFT_J:
val |= MAX98371_DAI_LEFT;
break;
default:
dev_err(component->dev, "DAI wrong mode unsupported");
return -EINVAL;
}
regmap_update_bits(max98371->regmap, MAX98371_FMT,
MAX98371_FMT_MODE_MASK, val);
return 0;
}
static int max98371_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct max98371_priv *max98371 = snd_soc_component_get_drvdata(component);
int blr_clk_ratio, ch_size, channels = params_channels(params);
int rate = params_rate(params);
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
regmap_update_bits(max98371->regmap, MAX98371_FMT,
MAX98371_FMT_MASK, MAX98371_DAI_CHANSZ_16);
ch_size = 8;
break;
case SNDRV_PCM_FORMAT_S16_LE:
regmap_update_bits(max98371->regmap, MAX98371_FMT,
MAX98371_FMT_MASK, MAX98371_DAI_CHANSZ_16);
ch_size = 16;
break;
case SNDRV_PCM_FORMAT_S24_LE:
regmap_update_bits(max98371->regmap, MAX98371_FMT,
MAX98371_FMT_MASK, MAX98371_DAI_CHANSZ_32);
ch_size = 24;
break;
case SNDRV_PCM_FORMAT_S32_LE:
regmap_update_bits(max98371->regmap, MAX98371_FMT,
MAX98371_FMT_MASK, MAX98371_DAI_CHANSZ_32);
ch_size = 32;
break;
default:
return -EINVAL;
}
/* BCLK/LRCLK ratio calculation */
blr_clk_ratio = channels * ch_size;
switch (blr_clk_ratio) {
case 32:
regmap_update_bits(max98371->regmap,
MAX98371_DAI_CLK,
MAX98371_DAI_BSEL_MASK, MAX98371_DAI_BSEL_32);
break;
case 48:
regmap_update_bits(max98371->regmap,
MAX98371_DAI_CLK,
MAX98371_DAI_BSEL_MASK, MAX98371_DAI_BSEL_48);
break;
case 64:
regmap_update_bits(max98371->regmap,
MAX98371_DAI_CLK,
MAX98371_DAI_BSEL_MASK, MAX98371_DAI_BSEL_64);
break;
default:
return -EINVAL;
}
switch (rate) {
case 32000:
regmap_update_bits(max98371->regmap,
MAX98371_SPK_SR,
MAX98371_SPK_SR_MASK, MAX98371_SPK_SR_32);
break;
case 44100:
regmap_update_bits(max98371->regmap,
MAX98371_SPK_SR,
MAX98371_SPK_SR_MASK, MAX98371_SPK_SR_44);
break;
case 48000:
regmap_update_bits(max98371->regmap,
MAX98371_SPK_SR,
MAX98371_SPK_SR_MASK, MAX98371_SPK_SR_48);
break;
case 88200:
regmap_update_bits(max98371->regmap,
MAX98371_SPK_SR,
MAX98371_SPK_SR_MASK, MAX98371_SPK_SR_88);
break;
case 96000:
regmap_update_bits(max98371->regmap,
MAX98371_SPK_SR,
MAX98371_SPK_SR_MASK, MAX98371_SPK_SR_96);
break;
default:
return -EINVAL;
}
/* enabling both the RX channels*/
regmap_update_bits(max98371->regmap, MAX98371_MONOMIX_SRC,
MAX98371_MONOMIX_SRC_MASK, MONOMIX_RX_0_1);
regmap_update_bits(max98371->regmap, MAX98371_DAI_CHANNEL,
MAX98371_CHANNEL_MASK, MAX98371_CHANNEL_MASK);
return 0;
}
static const struct snd_soc_dapm_widget max98371_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC", NULL, MAX98371_SPK_ENABLE, 0, 0),
SND_SOC_DAPM_SUPPLY("Global Enable", MAX98371_GLOBAL_ENABLE,
0, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("SPK_OUT"),
};
static const struct snd_soc_dapm_route max98371_audio_map[] = {
{"DAC", NULL, "HiFi Playback"},
{"SPK_OUT", NULL, "DAC"},
{"SPK_OUT", NULL, "Global Enable"},
};
#define MAX98371_RATES SNDRV_PCM_RATE_8000_48000
#define MAX98371_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE | \
SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE)
static const struct snd_soc_dai_ops max98371_dai_ops = {
.set_fmt = max98371_dai_set_fmt,
.hw_params = max98371_dai_hw_params,
};
static struct snd_soc_dai_driver max98371_dai[] = {
{
.name = "max98371-aif1",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = MAX98371_FORMATS,
},
.ops = &max98371_dai_ops,
}
};
static const struct snd_soc_component_driver max98371_component = {
.controls = max98371_snd_controls,
.num_controls = ARRAY_SIZE(max98371_snd_controls),
.dapm_routes = max98371_audio_map,
.num_dapm_routes = ARRAY_SIZE(max98371_audio_map),
.dapm_widgets = max98371_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(max98371_dapm_widgets),
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
.non_legacy_dai_naming = 1,
};
static const struct regmap_config max98371_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = MAX98371_VERSION,
.reg_defaults = max98371_reg,
.num_reg_defaults = ARRAY_SIZE(max98371_reg),
.volatile_reg = max98371_volatile_register,
.readable_reg = max98371_readable_register,
.cache_type = REGCACHE_RBTREE,
};
static int max98371_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct max98371_priv *max98371;
int ret, reg;
max98371 = devm_kzalloc(&i2c->dev,
sizeof(*max98371), GFP_KERNEL);
if (!max98371)
return -ENOMEM;
i2c_set_clientdata(i2c, max98371);
max98371->regmap = devm_regmap_init_i2c(i2c, &max98371_regmap);
if (IS_ERR(max98371->regmap)) {
ret = PTR_ERR(max98371->regmap);
dev_err(&i2c->dev,
"Failed to allocate regmap: %d\n", ret);
return ret;
}
ret = regmap_read(max98371->regmap, MAX98371_VERSION, &reg);
if (ret < 0) {
dev_info(&i2c->dev, "device error %d\n", ret);
return ret;
}
dev_info(&i2c->dev, "device version %x\n", reg);
ret = devm_snd_soc_register_component(&i2c->dev, &max98371_component,
max98371_dai, ARRAY_SIZE(max98371_dai));
if (ret < 0) {
dev_err(&i2c->dev, "Failed to register component: %d\n", ret);
return ret;
}
return ret;
}
static const struct i2c_device_id max98371_i2c_id[] = {
{ "max98371", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max98371_i2c_id);
#ifdef CONFIG_OF
static const struct of_device_id max98371_of_match[] = {
{ .compatible = "maxim,max98371", },
{ }
};
MODULE_DEVICE_TABLE(of, max98371_of_match);
#endif
static struct i2c_driver max98371_i2c_driver = {
.driver = {
.name = "max98371",
.of_match_table = of_match_ptr(max98371_of_match),
},
.probe = max98371_i2c_probe,
.id_table = max98371_i2c_id,
};
module_i2c_driver(max98371_i2c_driver);
MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>");
MODULE_DESCRIPTION("ALSA SoC MAX98371 driver");
MODULE_LICENSE("GPL");
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