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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AD193X Audio Codec driver supporting AD1936/7/8/9
*
* Copyright 2010 Analog Devices Inc.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/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/initval.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include "ad193x.h"
/* codec private data */
struct ad193x_priv {
struct regmap *regmap;
enum ad193x_type type;
int sysclk;
};
/*
* AD193X volume/mute/de-emphasis etc. controls
*/
static const char * const ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
static SOC_ENUM_SINGLE_DECL(ad193x_deemp_enum, AD193X_DAC_CTRL2, 1,
ad193x_deemp);
static const DECLARE_TLV_DB_MINMAX(adau193x_tlv, -9563, 0);
static const unsigned int ad193x_sb[] = {32};
static struct snd_pcm_hw_constraint_list constr = {
.list = ad193x_sb,
.count = ARRAY_SIZE(ad193x_sb),
};
static const struct snd_kcontrol_new ad193x_snd_controls[] = {
/* DAC volume control */
SOC_DOUBLE_R_TLV("DAC1 Volume", AD193X_DAC_L1_VOL,
AD193X_DAC_R1_VOL, 0, 0xFF, 1, adau193x_tlv),
SOC_DOUBLE_R_TLV("DAC2 Volume", AD193X_DAC_L2_VOL,
AD193X_DAC_R2_VOL, 0, 0xFF, 1, adau193x_tlv),
SOC_DOUBLE_R_TLV("DAC3 Volume", AD193X_DAC_L3_VOL,
AD193X_DAC_R3_VOL, 0, 0xFF, 1, adau193x_tlv),
SOC_DOUBLE_R_TLV("DAC4 Volume", AD193X_DAC_L4_VOL,
AD193X_DAC_R4_VOL, 0, 0xFF, 1, adau193x_tlv),
/* DAC switch control */
SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
AD193X_DACR1_MUTE, 1, 1),
SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
AD193X_DACR2_MUTE, 1, 1),
SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
AD193X_DACR3_MUTE, 1, 1),
SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
AD193X_DACR4_MUTE, 1, 1),
/* DAC de-emphasis */
SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
};
static const struct snd_kcontrol_new ad193x_adc_snd_controls[] = {
/* ADC switch control */
SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
AD193X_ADCR1_MUTE, 1, 1),
SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
AD193X_ADCR2_MUTE, 1, 1),
/* ADC high-pass filter */
SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
AD193X_ADC_HIGHPASS_FILTER, 1, 0),
};
static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_PGA("DAC Output", AD193X_DAC_CTRL0, 0, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
SND_SOC_DAPM_SUPPLY("SYSCLK", AD193X_PLL_CLK_CTRL0, 7, 0, NULL, 0),
SND_SOC_DAPM_VMID("VMID"),
SND_SOC_DAPM_OUTPUT("DAC1OUT"),
SND_SOC_DAPM_OUTPUT("DAC2OUT"),
SND_SOC_DAPM_OUTPUT("DAC3OUT"),
SND_SOC_DAPM_OUTPUT("DAC4OUT"),
};
static const struct snd_soc_dapm_widget ad193x_adc_widgets[] = {
SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
SND_SOC_DAPM_INPUT("ADC1IN"),
SND_SOC_DAPM_INPUT("ADC2IN"),
};
static int ad193x_check_pll(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(component);
return !!ad193x->sysclk;
}
static const struct snd_soc_dapm_route audio_paths[] = {
{ "DAC", NULL, "SYSCLK" },
{ "DAC Output", NULL, "DAC" },
{ "DAC Output", NULL, "VMID" },
{ "DAC1OUT", NULL, "DAC Output" },
{ "DAC2OUT", NULL, "DAC Output" },
{ "DAC3OUT", NULL, "DAC Output" },
{ "DAC4OUT", NULL, "DAC Output" },
{ "SYSCLK", NULL, "PLL_PWR", &ad193x_check_pll },
};
static const struct snd_soc_dapm_route ad193x_adc_audio_paths[] = {
{ "ADC", NULL, "SYSCLK" },
{ "ADC", NULL, "ADC_PWR" },
{ "ADC", NULL, "ADC1IN" },
{ "ADC", NULL, "ADC2IN" },
};
static inline bool ad193x_has_adc(const struct ad193x_priv *ad193x)
{
switch (ad193x->type) {
case AD1933:
case AD1934:
return false;
default:
break;
}
return true;
}
/*
* DAI ops entries
*/
static int ad193x_mute(struct snd_soc_dai *dai, int mute)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
if (mute)
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
AD193X_DAC_MASTER_MUTE,
AD193X_DAC_MASTER_MUTE);
else
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL2,
AD193X_DAC_MASTER_MUTE, 0);
return 0;
}
static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
unsigned int rx_mask, int slots, int width)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(dai->component);
unsigned int channels;
switch (slots) {
case 2:
channels = AD193X_2_CHANNELS;
break;
case 4:
channels = AD193X_4_CHANNELS;
break;
case 8:
channels = AD193X_8_CHANNELS;
break;
case 16:
channels = AD193X_16_CHANNELS;
break;
default:
return -EINVAL;
}
regmap_update_bits(ad193x->regmap, AD193X_DAC_CTRL1,
AD193X_DAC_CHAN_MASK, channels << AD193X_DAC_CHAN_SHFT);
if (ad193x_has_adc(ad193x))
regmap_update_bits(ad193x->regmap, AD193X_ADC_CTRL2,
AD193X_ADC_CHAN_MASK,
channels << AD193X_ADC_CHAN_SHFT);
return 0;
}
static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct ad193x_priv *ad193x = snd_soc_component_get_drvdata(codec_dai->component);
unsigned int adc_serfmt = 0;
unsigned int dac_serfmt = 0;
unsigned int adc_fmt = 0;
unsigned int dac_fmt = 0;
/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
* with TDM), ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A) and DAC I2S mode
* (SND_SOC_DAIFMT_I2S)
*/
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
adc_serfmt |= AD193X_ADC_SERFMT_TDM;
dac_serfmt |= AD193X_DAC_SERFMT_STEREO;
break;
case SND_SOC_DAIFMT_DSP_A:
adc_serfmt |= AD193X_ADC_SERFMT_AUX;
dac_serfmt |= AD193X_DAC_SERFMT_TDM;
break;
default:
if (ad193x_has_adc(ad193x))
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
break;
case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
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