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/*
* Copyright (C) 2017 Sanechips Technology Co., Ltd.
* Copyright 2017 Linaro Ltd.
*
* Author: Baoyou Xie <baoyou.xie@linaro.org>
*
* 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/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <sound/tlv.h>
#define AUD96P22_RESET 0x00
#define RST_DAC_DPZ BIT(0)
#define RST_ADC_DPZ BIT(1)
#define AUD96P22_I2S1_CONFIG_0 0x03
#define I2S1_MS_MODE BIT(3)
#define I2S1_MODE_MASK 0x7
#define I2S1_MODE_RIGHT_J 0x0
#define I2S1_MODE_I2S 0x1
#define I2S1_MODE_LEFT_J 0x2
#define AUD96P22_PD_0 0x15
#define AUD96P22_PD_1 0x16
#define AUD96P22_PD_3 0x18
#define AUD96P22_PD_4 0x19
#define AUD96P22_MUTE_0 0x1d
#define AUD96P22_MUTE_2 0x1f
#define AUD96P22_MUTE_4 0x21
#define AUD96P22_RECVOL_0 0x24
#define AUD96P22_RECVOL_1 0x25
#define AUD96P22_PGA1VOL_0 0x26
#define AUD96P22_PGA1VOL_1 0x27
#define AUD96P22_LMVOL_0 0x34
#define AUD96P22_LMVOL_1 0x35
#define AUD96P22_HS1VOL_0 0x38
#define AUD96P22_HS1VOL_1 0x39
#define AUD96P22_PGA1SEL_0 0x47
#define AUD96P22_PGA1SEL_1 0x48
#define AUD96P22_LDR1SEL_0 0x59
#define AUD96P22_LDR1SEL_1 0x60
#define AUD96P22_LDR2SEL_0 0x5d
#define AUD96P22_REG_MAX 0xfb
struct aud96p22_priv {
struct regmap *regmap;
};
static int aud96p22_adc_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(codec);
struct regmap *regmap = priv->regmap;
if (event != SND_SOC_DAPM_POST_PMU)
return -EINVAL;
/* Assert/de-assert the bit to reset ADC data path */
regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, 0);
regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, RST_ADC_DPZ);
return 0;
}
static int aud96p22_dac_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(codec);
struct regmap *regmap = priv->regmap;
if (event != SND_SOC_DAPM_POST_PMU)
return -EINVAL;
/* Assert/de-assert the bit to reset DAC data path */
regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, 0);
regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, RST_DAC_DPZ);
return 0;
}
static const DECLARE_TLV_DB_SCALE(lm_tlv, -11550, 50, 0);
static const DECLARE_TLV_DB_SCALE(hs_tlv, -3900, 300, 0);
static const DECLARE_TLV_DB_SCALE(rec_tlv, -9550, 50, 0);
static const DECLARE_TLV_DB_SCALE(pga_tlv, -1800, 100, 0);
static const struct snd_kcontrol_new aud96p22_snd_controls[] = {
/* Volume control */
SOC_DOUBLE_R_TLV("Master Playback Volume", AUD96P22_LMVOL_0,
AUD96P22_LMVOL_1, 0, 0xff, 0, lm_tlv),
SOC_DOUBLE_R_TLV("Headphone Volume", AUD96P22_HS1VOL_0,
AUD96P22_HS1VOL_1, 0, 0xf, 0, hs_tlv),
SOC_DOUBLE_R_TLV("Master Capture Volume", AUD96P22_RECVOL_0,
AUD96P22_RECVOL_1, 0, 0xff, 0, rec_tlv),
SOC_DOUBLE_R_TLV("Analogue Capture Volume", AUD96P22_PGA1VOL_0,
AUD96P22_PGA1VOL_1, 0, 0x37, 0, pga_tlv),
/* Mute control */
SOC_DOUBLE("Master Playback Switch", AUD96P22_MUTE_2, 0, 1, 1, 1),
SOC_DOUBLE("Headphone Switch", AUD96P22_MUTE_2, 4, 5, 1, 1),
SOC_DOUBLE("Line Out Switch", AUD96P22_MUTE_4, 0, 1, 1, 1),
SOC_DOUBLE("Speaker Switch", AUD96P22_MUTE_4, 2, 3, 1, 1),
SOC_DOUBLE("Master Capture Switch", AUD96P22_MUTE_0, 0, 1, 1, 1),
SOC_DOUBLE("Analogue Capture Switch", AUD96P22_MUTE_0, 2, 3, 1, 1),
};
/* Input mux kcontrols */
static const unsigned int ain_mux_values[] = {
0, 1, 3, 4, 5,
};
static const char * const ainl_mux_texts[] = {
"AINL1 differential",
"AINL1 single-ended",
"AINL3 single-ended",
"AINL2 differential",
"AINL2 single-ended",
};
static const char * const ainr_mux_texts[] = {
"AINR1 differential",
"AINR1 single-ended",
"AINR3 single-ended",
"AINR2 differential",
"AINR2 single-ended",
};
static SOC_VALUE_ENUM_SINGLE_DECL(ainl_mux_enum, AUD96P22_PGA1SEL_0,
0, 0x7, ainl_mux_texts, ain_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(ainr_mux_enum, AUD96P22_PGA1SEL_1,
0, 0x7, ainr_mux_texts, ain_mux_values);
static const struct snd_kcontrol_new ainl_mux_kcontrol =
SOC_DAPM_ENUM("AINL Mux", ainl_mux_enum);
static const struct snd_kcontrol_new ainr_mux_kcontrol =
SOC_DAPM_ENUM("AINR Mux", ainr_mux_enum);
/* Output mixer kcontrols */
static const struct snd_kcontrol_new ld1_left_kcontrols[] = {
SOC_DAPM_SINGLE("DACL LD1L Switch", AUD96P22_LDR1SEL_0, 0, 1, 0),
SOC_DAPM_SINGLE("AINL LD1L Switch", AUD96P22_LDR1SEL_0, 1, 1, 0),
SOC_DAPM_SINGLE("AINR LD1L Switch", AUD96P22_LDR1SEL_0, 2, 1, 0),
};
static const struct snd_kcontrol_new ld1_right_kcontrols[] = {
SOC_DAPM_SINGLE("DACR LD1R Switch", AUD96P22_LDR1SEL_1, 8, 1, 0),
SOC_DAPM_SINGLE("AINR LD1R Switch", AUD96P22_LDR1SEL_1, 9, 1, 0),
SOC_DAPM_SINGLE("AINL LD1R Switch", AUD96P22_LDR1SEL_1, 10, 1, 0),
};
static const struct snd_kcontrol_new ld2_kcontrols[] = {
SOC_DAPM_SINGLE("DACL LD2 Switch", AUD96P22_LDR2SEL_0, 0, 1, 0),
SOC_DAPM_SINGLE("AINL LD2 Switch", AUD96P22_LDR2SEL_0, 1, 1, 0),
SOC_DAPM_SINGLE("DACR LD2 Switch", AUD96P22_LDR2SEL_0, 2, 1, 0),
};
static const struct snd_soc_dapm_widget aud96p22_dapm_widgets[] = {
/* Overall power bit */
SND_SOC_DAPM_SUPPLY("POWER", AUD96P22_PD_0, 0, 0, NULL, 0),
/* Input pins */
SND_SOC_DAPM_INPUT("AINL1P"),
SND_SOC_DAPM_INPUT("AINL2P"),
SND_SOC_DAPM_INPUT("AINL3"),
SND_SOC_DAPM_INPUT("AINL1N"),
SND_SOC_DAPM_INPUT("AINL2N"),
SND_SOC_DAPM_INPUT("AINR2N"),
SND_SOC_DAPM_INPUT("AINR1N"),
SND_SOC_DAPM_INPUT("AINR3"),
SND_SOC_DAPM_INPUT("AINR2P"),
SND_SOC_DAPM_INPUT("AINR1P"),
/* Input muxes */
SND_SOC_DAPM_MUX("AINLMUX", AUD96P22_PD_1, 2, 0, &ainl_mux_kcontrol),
SND_SOC_DAPM_MUX("AINRMUX", AUD96P22_PD_1, 3, 0, &ainr_mux_kcontrol),
/* ADCs */
SND_SOC_DAPM_ADC_E("ADCL", "Capture Left", AUD96P22_PD_1, 0, 0,
aud96p22_adc_event, SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_ADC_E("ADCR", "Capture Right", AUD96P22_PD_1, 1, 0,
aud96p22_adc_event, SND_SOC_DAPM_POST_PMU),
/* DACs */
SND_SOC_DAPM_DAC_E("DACL", "Playback Left", AUD96P22_PD_3, 0, 0,
aud96p22_dac_event, SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_DAC_E("DACR", "Playback Right", AUD96P22_PD_3, 1, 0,
aud96p22_dac_event, SND_SOC_DAPM_POST_PMU),
/* Output mixers */
SND_SOC_DAPM_MIXER("LD1L", AUD96P22_PD_3, 6, 0, ld1_left_kcontrols,
ARRAY_SIZE(ld1_left_kcontrols)),
SND_SOC_DAPM_MIXER("LD1R", AUD96P22_PD_3, 7, 0, ld1_right_kcontrols,
ARRAY_SIZE(ld1_right_kcontrols)),
SND_SOC_DAPM_MIXER("LD2", AUD96P22_PD_4, 2, 0, ld2_kcontrols,
ARRAY_SIZE(ld2_kcontrols)),
/* Headset power switch */
SND_SOC_DAPM_SUPPLY("HS1L", AUD96P22_PD_3, 4, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("HS1R", AUD96P22_PD_3, 5, 0, NULL, 0),
/* Output pins */
SND_SOC_DAPM_OUTPUT("HSOUTL"),
SND_SOC_DAPM_OUTPUT("LINEOUTL"),
SND_SOC_DAPM_OUTPUT("LINEOUTMP"),
SND_SOC_DAPM_OUTPUT("LINEOUTMN"),
SND_SOC_DAPM_OUTPUT("LINEOUTR"),
SND_SOC_DAPM_OUTPUT("HSOUTR"),
};
static const struct snd_soc_dapm_route aud96p22_dapm_routes[] = {
{ "AINLMUX", "AINL1 differential", "AINL1N" },
{ "AINLMUX", "AINL1 single-ended", "AINL1P" },
{ "AINLMUX", "AINL3 single-ended", "AINL3" },
{ "AINLMUX", "AINL2 differential", "AINL2N" },
{ "AINLMUX", "AINL2 single-ended", "AINL2P" },
{ "AINRMUX", "AINR1 differential", "AINR1N" },
{ "AINRMUX", "AINR1 single-ended", "AINR1P" },
{ "AINRMUX", "AINR3 single-ended", "AINR3" },
{ "AINRMUX", "AINR2 differential", "AINR2N" },
{ "AINRMUX", "AINR2 single-ended", "AINR2P" },
{ "ADCL", NULL, "AINLMUX" },
{ "ADCR", NULL, "AINRMUX" },
{ "ADCL", NULL, "POWER" },
{ "ADCR", NULL, "POWER" },
{ "DACL", NULL, "POWER" },
{ "DACR", NULL, "POWER" },
{ "LD1L", "DACL LD1L Switch", "DACL" },
{ "LD1L", "AINL LD1L Switch", "AINLMUX" },
{ "LD1L", "AINR LD1L Switch", "AINRMUX" },
{ "LD1R", "DACR LD1R Switch", "DACR" },
{ "LD1R", "AINR LD1R Switch", "AINRMUX" },
{ "LD1R", "AINL LD1R Switch", "AINLMUX" },
{ "LD2", "DACL LD2 Switch", "DACL" },
{ "LD2", "AINL LD2 Switch", "AINLMUX" },
{ "LD2", "DACR LD2 Switch", "DACR" },
{ "HSOUTL", NULL, "LD1L" },
{ "HSOUTR", NULL, "LD1R" },
{ "HSOUTL", NULL, "HS1L" },
{ "HSOUTR", NULL, "HS1R" },
{ "LINEOUTL", NULL, "LD1L" },
{ "LINEOUTR", NULL, "LD1R" },
{ "LINEOUTMP", NULL, "LD2" },
{ "LINEOUTMN", NULL, "LD2" },
};
static const struct snd_soc_codec_driver aud96p22_driver = {
.component_driver = {
.controls = aud96p22_snd_controls,
.num_controls = ARRAY_SIZE(aud96p22_snd_controls),
.dapm_widgets = aud96p22_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(aud96p22_dapm_widgets),
.dapm_routes = aud96p22_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(aud96p22_dapm_routes),
},
};
static int aud96p22_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct aud96p22_priv *priv = snd_soc_codec_get_drvdata(dai->codec);
struct regmap *regmap = priv->regmap;
unsigned int val;
/* Master/slave mode */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
val = 0;
break;
case SND_SOC_DAIFMT_CBM_CFM:
val = I2S1_MS_MODE;
break;
default:
return -EINVAL;
}
regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MS_MODE, val);
/* Audio format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_RIGHT_J:
val = I2S1_MODE_RIGHT_J;
break;
case SND_SOC_DAIFMT_I2S:
val = I2S1_MODE_I2S;
break;
case SND_SOC_DAIFMT_LEFT_J:
val = I2S1_MODE_LEFT_J;
break;
default:
return -EINVAL;
}
regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MODE_MASK, val);
return 0;
}
static const struct snd_soc_dai_ops aud96p22_dai_ops = {
.set_fmt = aud96p22_set_fmt,
};
#define AUD96P22_RATES SNDRV_PCM_RATE_8000_192000
#define AUD96P22_FORMATS (\
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE)
static struct snd_soc_dai_driver aud96p22_dai = {
.name = "aud96p22-dai",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = AUD96P22_RATES,
.formats = AUD96P22_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = AUD96P22_RATES,
.formats = AUD96P22_FORMATS,
},
.ops = &aud96p22_dai_ops,
};
static const struct regmap_config aud96p22_regmap = {
.reg_bits = 8,
.val_bits = 8,
.max_register = AUD96P22_REG_MAX,
.cache_type = REGCACHE_RBTREE,
};
static int aud96p22_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct device *dev = &i2c->dev;
struct aud96p22_priv *priv;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
priv->regmap = devm_regmap_init_i2c(i2c, &aud96p22_regmap);
if (IS_ERR(priv->regmap)) {
ret = PTR_ERR(priv->regmap);
dev_err(dev, "failed to init i2c regmap: %d\n", ret);
return ret;
}
i2c_set_clientdata(i2c, priv);
ret = snd_soc_register_codec(dev, &aud96p22_driver, &aud96p22_dai, 1);
if (ret) {
dev_err(dev, "failed to register codec: %d\n", ret);
return ret;
}
return 0;
}
static int aud96p22_i2c_remove(struct i2c_client *i2c)
{
snd_soc_unregister_codec(&i2c->dev);
return 0;
}
static const struct of_device_id aud96p22_dt_ids[] = {
{ .compatible = "zte,zx-aud96p22", },
{ }
};
MODULE_DEVICE_TABLE(of, aud96p22_dt_ids);
static struct i2c_driver aud96p22_i2c_driver = {
.driver = {
.name = "zx_aud96p22",
.of_match_table = aud96p22_dt_ids,
},
.probe = aud96p22_i2c_probe,
.remove = aud96p22_i2c_remove,
};
module_i2c_driver(aud96p22_i2c_driver);
MODULE_DESCRIPTION("ZTE ASoC AUD96P22 CODEC driver");
MODULE_AUTHOR("Baoyou Xie <baoyou.xie@linaro.org>");
MODULE_LICENSE("GPL v2");
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