451 lines
12 KiB
C
451 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* ak4535.c -- AK4535 ALSA Soc Audio driver
|
|
*
|
|
* Copyright 2005 Openedhand Ltd.
|
|
*
|
|
* Author: Richard Purdie <richard@openedhand.com>
|
|
*
|
|
* Based on wm8753.c by Liam Girdwood
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/init.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/i2c.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/initval.h>
|
|
|
|
#include "ak4535.h"
|
|
|
|
/* codec private data */
|
|
struct ak4535_priv {
|
|
struct regmap *regmap;
|
|
unsigned int sysclk;
|
|
};
|
|
|
|
/*
|
|
* ak4535 register cache
|
|
*/
|
|
static const struct reg_default ak4535_reg_defaults[] = {
|
|
{ 0, 0x00 },
|
|
{ 1, 0x80 },
|
|
{ 2, 0x00 },
|
|
{ 3, 0x03 },
|
|
{ 4, 0x02 },
|
|
{ 5, 0x00 },
|
|
{ 6, 0x11 },
|
|
{ 7, 0x01 },
|
|
{ 8, 0x00 },
|
|
{ 9, 0x40 },
|
|
{ 10, 0x36 },
|
|
{ 11, 0x10 },
|
|
{ 12, 0x00 },
|
|
{ 13, 0x00 },
|
|
{ 14, 0x57 },
|
|
};
|
|
|
|
static bool ak4535_volatile(struct device *dev, unsigned int reg)
|
|
{
|
|
switch (reg) {
|
|
case AK4535_STATUS:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"};
|
|
static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"};
|
|
static const char *ak4535_hp_out[] = {"Stereo", "Mono"};
|
|
static const char *ak4535_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"};
|
|
static const char *ak4535_mic_select[] = {"Internal", "External"};
|
|
|
|
static const struct soc_enum ak4535_enum[] = {
|
|
SOC_ENUM_SINGLE(AK4535_SIG1, 7, 2, ak4535_mono_gain),
|
|
SOC_ENUM_SINGLE(AK4535_SIG1, 6, 2, ak4535_mono_out),
|
|
SOC_ENUM_SINGLE(AK4535_MODE2, 2, 2, ak4535_hp_out),
|
|
SOC_ENUM_SINGLE(AK4535_DAC, 0, 4, ak4535_deemp),
|
|
SOC_ENUM_SINGLE(AK4535_MIC, 1, 2, ak4535_mic_select),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new ak4535_snd_controls[] = {
|
|
SOC_SINGLE("ALC2 Switch", AK4535_SIG1, 1, 1, 0),
|
|
SOC_ENUM("Mono 1 Output", ak4535_enum[1]),
|
|
SOC_ENUM("Mono 1 Gain", ak4535_enum[0]),
|
|
SOC_ENUM("Headphone Output", ak4535_enum[2]),
|
|
SOC_ENUM("Playback Deemphasis", ak4535_enum[3]),
|
|
SOC_SINGLE("Bass Volume", AK4535_DAC, 2, 3, 0),
|
|
SOC_SINGLE("Mic Boost (+20dB) Switch", AK4535_MIC, 0, 1, 0),
|
|
SOC_ENUM("Mic Select", ak4535_enum[4]),
|
|
SOC_SINGLE("ALC Operation Time", AK4535_TIMER, 0, 3, 0),
|
|
SOC_SINGLE("ALC Recovery Time", AK4535_TIMER, 2, 3, 0),
|
|
SOC_SINGLE("ALC ZC Time", AK4535_TIMER, 4, 3, 0),
|
|
SOC_SINGLE("ALC 1 Switch", AK4535_ALC1, 5, 1, 0),
|
|
SOC_SINGLE("ALC 2 Switch", AK4535_ALC1, 6, 1, 0),
|
|
SOC_SINGLE("ALC Volume", AK4535_ALC2, 0, 127, 0),
|
|
SOC_SINGLE("Capture Volume", AK4535_PGA, 0, 127, 0),
|
|
SOC_SINGLE("Left Playback Volume", AK4535_LATT, 0, 127, 1),
|
|
SOC_SINGLE("Right Playback Volume", AK4535_RATT, 0, 127, 1),
|
|
SOC_SINGLE("AUX Bypass Volume", AK4535_VOL, 0, 15, 0),
|
|
SOC_SINGLE("Mic Sidetone Volume", AK4535_VOL, 4, 7, 0),
|
|
};
|
|
|
|
/* Mono 1 Mixer */
|
|
static const struct snd_kcontrol_new ak4535_mono1_mixer_controls[] = {
|
|
SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG1, 4, 1, 0),
|
|
SOC_DAPM_SINGLE("Mono Playback Switch", AK4535_SIG1, 5, 1, 0),
|
|
};
|
|
|
|
/* Stereo Mixer */
|
|
static const struct snd_kcontrol_new ak4535_stereo_mixer_controls[] = {
|
|
SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4535_SIG2, 4, 1, 0),
|
|
SOC_DAPM_SINGLE("Playback Switch", AK4535_SIG2, 7, 1, 0),
|
|
SOC_DAPM_SINGLE("Aux Bypass Switch", AK4535_SIG2, 5, 1, 0),
|
|
};
|
|
|
|
/* Input Mixer */
|
|
static const struct snd_kcontrol_new ak4535_input_mixer_controls[] = {
|
|
SOC_DAPM_SINGLE("Mic Capture Switch", AK4535_MIC, 2, 1, 0),
|
|
SOC_DAPM_SINGLE("Aux Capture Switch", AK4535_MIC, 5, 1, 0),
|
|
};
|
|
|
|
/* Input mux */
|
|
static const struct snd_kcontrol_new ak4535_input_mux_control =
|
|
SOC_DAPM_ENUM("Input Select", ak4535_enum[4]);
|
|
|
|
/* HP L switch */
|
|
static const struct snd_kcontrol_new ak4535_hpl_control =
|
|
SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 1, 1, 1);
|
|
|
|
/* HP R switch */
|
|
static const struct snd_kcontrol_new ak4535_hpr_control =
|
|
SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 0, 1, 1);
|
|
|
|
/* mono 2 switch */
|
|
static const struct snd_kcontrol_new ak4535_mono2_control =
|
|
SOC_DAPM_SINGLE("Switch", AK4535_SIG1, 0, 1, 0);
|
|
|
|
/* Line out switch */
|
|
static const struct snd_kcontrol_new ak4535_line_control =
|
|
SOC_DAPM_SINGLE("Switch", AK4535_SIG2, 6, 1, 0);
|
|
|
|
/* ak4535 dapm widgets */
|
|
static const struct snd_soc_dapm_widget ak4535_dapm_widgets[] = {
|
|
SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_stereo_mixer_controls[0],
|
|
ARRAY_SIZE(ak4535_stereo_mixer_controls)),
|
|
SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_mono1_mixer_controls[0],
|
|
ARRAY_SIZE(ak4535_mono1_mixer_controls)),
|
|
SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_input_mixer_controls[0],
|
|
ARRAY_SIZE(ak4535_input_mixer_controls)),
|
|
SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_input_mux_control),
|
|
SND_SOC_DAPM_DAC("DAC", "Playback", AK4535_PM2, 0, 0),
|
|
SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_mono2_control),
|
|
/* speaker powersave bit */
|
|
SND_SOC_DAPM_PGA("Speaker Enable", AK4535_MODE2, 0, 0, NULL, 0),
|
|
SND_SOC_DAPM_SWITCH("Line Out Enable", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_line_control),
|
|
SND_SOC_DAPM_SWITCH("Left HP Enable", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_hpl_control),
|
|
SND_SOC_DAPM_SWITCH("Right HP Enable", SND_SOC_NOPM, 0, 0,
|
|
&ak4535_hpr_control),
|
|
SND_SOC_DAPM_OUTPUT("LOUT"),
|
|
SND_SOC_DAPM_OUTPUT("HPL"),
|
|
SND_SOC_DAPM_OUTPUT("ROUT"),
|
|
SND_SOC_DAPM_OUTPUT("HPR"),
|
|
SND_SOC_DAPM_OUTPUT("SPP"),
|
|
SND_SOC_DAPM_OUTPUT("SPN"),
|
|
SND_SOC_DAPM_OUTPUT("MOUT1"),
|
|
SND_SOC_DAPM_OUTPUT("MOUT2"),
|
|
SND_SOC_DAPM_OUTPUT("MICOUT"),
|
|
SND_SOC_DAPM_ADC("ADC", "Capture", AK4535_PM1, 0, 0),
|
|
SND_SOC_DAPM_PGA("Spk Amp", AK4535_PM2, 3, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("HP R Amp", AK4535_PM2, 1, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("HP L Amp", AK4535_PM2, 2, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("Mic", AK4535_PM1, 1, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("Line Out", AK4535_PM1, 4, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("Mono Out", AK4535_PM1, 3, 0, NULL, 0),
|
|
SND_SOC_DAPM_PGA("AUX In", AK4535_PM1, 2, 0, NULL, 0),
|
|
|
|
SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4535_MIC, 3, 0),
|
|
SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4535_MIC, 4, 0),
|
|
SND_SOC_DAPM_INPUT("MICIN"),
|
|
SND_SOC_DAPM_INPUT("MICEXT"),
|
|
SND_SOC_DAPM_INPUT("AUX"),
|
|
SND_SOC_DAPM_INPUT("MIN"),
|
|
SND_SOC_DAPM_INPUT("AIN"),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route ak4535_audio_map[] = {
|
|
/*stereo mixer */
|
|
{"Stereo Mixer", "Playback Switch", "DAC"},
|
|
{"Stereo Mixer", "Mic Sidetone Switch", "Mic"},
|
|
{"Stereo Mixer", "Aux Bypass Switch", "AUX In"},
|
|
|
|
/* mono1 mixer */
|
|
{"Mono1 Mixer", "Mic Sidetone Switch", "Mic"},
|
|
{"Mono1 Mixer", "Mono Playback Switch", "DAC"},
|
|
|
|
/* Mic */
|
|
{"Mic", NULL, "AIN"},
|
|
{"Input Mux", "Internal", "Mic Int Bias"},
|
|
{"Input Mux", "External", "Mic Ext Bias"},
|
|
{"Mic Int Bias", NULL, "MICIN"},
|
|
{"Mic Ext Bias", NULL, "MICEXT"},
|
|
{"MICOUT", NULL, "Input Mux"},
|
|
|
|
/* line out */
|
|
{"LOUT", NULL, "Line Out Enable"},
|
|
{"ROUT", NULL, "Line Out Enable"},
|
|
{"Line Out Enable", "Switch", "Line Out"},
|
|
{"Line Out", NULL, "Stereo Mixer"},
|
|
|
|
/* mono1 out */
|
|
{"MOUT1", NULL, "Mono Out"},
|
|
{"Mono Out", NULL, "Mono1 Mixer"},
|
|
|
|
/* left HP */
|
|
{"HPL", NULL, "Left HP Enable"},
|
|
{"Left HP Enable", "Switch", "HP L Amp"},
|
|
{"HP L Amp", NULL, "Stereo Mixer"},
|
|
|
|
/* right HP */
|
|
{"HPR", NULL, "Right HP Enable"},
|
|
{"Right HP Enable", "Switch", "HP R Amp"},
|
|
{"HP R Amp", NULL, "Stereo Mixer"},
|
|
|
|
/* speaker */
|
|
{"SPP", NULL, "Speaker Enable"},
|
|
{"SPN", NULL, "Speaker Enable"},
|
|
{"Speaker Enable", "Switch", "Spk Amp"},
|
|
{"Spk Amp", NULL, "MIN"},
|
|
|
|
/* mono 2 */
|
|
{"MOUT2", NULL, "Mono 2 Enable"},
|
|
{"Mono 2 Enable", "Switch", "Stereo Mixer"},
|
|
|
|
/* Aux In */
|
|
{"Aux In", NULL, "AUX"},
|
|
|
|
/* ADC */
|
|
{"ADC", NULL, "Input Mixer"},
|
|
{"Input Mixer", "Mic Capture Switch", "Mic"},
|
|
{"Input Mixer", "Aux Capture Switch", "Aux In"},
|
|
};
|
|
|
|
static int ak4535_set_dai_sysclk(struct snd_soc_dai *codec_dai,
|
|
int clk_id, unsigned int freq, int dir)
|
|
{
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
struct ak4535_priv *ak4535 = snd_soc_component_get_drvdata(component);
|
|
|
|
ak4535->sysclk = freq;
|
|
return 0;
|
|
}
|
|
|
|
static int ak4535_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 ak4535_priv *ak4535 = snd_soc_component_get_drvdata(component);
|
|
u8 mode2 = snd_soc_component_read32(component, AK4535_MODE2) & ~(0x3 << 5);
|
|
int rate = params_rate(params), fs = 256;
|
|
|
|
if (rate)
|
|
fs = ak4535->sysclk / rate;
|
|
|
|
/* set fs */
|
|
switch (fs) {
|
|
case 1024:
|
|
mode2 |= (0x2 << 5);
|
|
break;
|
|
case 512:
|
|
mode2 |= (0x1 << 5);
|
|
break;
|
|
case 256:
|
|
break;
|
|
}
|
|
|
|
/* set rate */
|
|
snd_soc_component_write(component, AK4535_MODE2, mode2);
|
|
return 0;
|
|
}
|
|
|
|
static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai,
|
|
unsigned int fmt)
|
|
{
|
|
struct snd_soc_component *component = codec_dai->component;
|
|
u8 mode1 = 0;
|
|
|
|
/* interface format */
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
|
case SND_SOC_DAIFMT_I2S:
|
|
mode1 = 0x0002;
|
|
break;
|
|
case SND_SOC_DAIFMT_LEFT_J:
|
|
mode1 = 0x0001;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* use 32 fs for BCLK to save power */
|
|
mode1 |= 0x4;
|
|
|
|
snd_soc_component_write(component, AK4535_MODE1, mode1);
|
|
return 0;
|
|
}
|
|
|
|
static int ak4535_mute(struct snd_soc_dai *dai, int mute)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
u16 mute_reg = snd_soc_component_read32(component, AK4535_DAC);
|
|
if (!mute)
|
|
snd_soc_component_write(component, AK4535_DAC, mute_reg & ~0x20);
|
|
else
|
|
snd_soc_component_write(component, AK4535_DAC, mute_reg | 0x20);
|
|
return 0;
|
|
}
|
|
|
|
static int ak4535_set_bias_level(struct snd_soc_component *component,
|
|
enum snd_soc_bias_level level)
|
|
{
|
|
switch (level) {
|
|
case SND_SOC_BIAS_ON:
|
|
snd_soc_component_update_bits(component, AK4535_DAC, 0x20, 0);
|
|
break;
|
|
case SND_SOC_BIAS_PREPARE:
|
|
snd_soc_component_update_bits(component, AK4535_DAC, 0x20, 0x20);
|
|
break;
|
|
case SND_SOC_BIAS_STANDBY:
|
|
snd_soc_component_update_bits(component, AK4535_PM1, 0x80, 0x80);
|
|
snd_soc_component_update_bits(component, AK4535_PM2, 0x80, 0);
|
|
break;
|
|
case SND_SOC_BIAS_OFF:
|
|
snd_soc_component_update_bits(component, AK4535_PM1, 0x80, 0);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define AK4535_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
|
|
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
|
|
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
|
|
|
|
static const struct snd_soc_dai_ops ak4535_dai_ops = {
|
|
.hw_params = ak4535_hw_params,
|
|
.set_fmt = ak4535_set_dai_fmt,
|
|
.digital_mute = ak4535_mute,
|
|
.set_sysclk = ak4535_set_dai_sysclk,
|
|
};
|
|
|
|
static struct snd_soc_dai_driver ak4535_dai = {
|
|
.name = "ak4535-hifi",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = AK4535_RATES,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.rates = AK4535_RATES,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
|
|
.ops = &ak4535_dai_ops,
|
|
};
|
|
|
|
static int ak4535_resume(struct snd_soc_component *component)
|
|
{
|
|
snd_soc_component_cache_sync(component);
|
|
return 0;
|
|
}
|
|
|
|
static const struct regmap_config ak4535_regmap = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
|
|
.max_register = AK4535_STATUS,
|
|
.volatile_reg = ak4535_volatile,
|
|
|
|
.cache_type = REGCACHE_RBTREE,
|
|
.reg_defaults = ak4535_reg_defaults,
|
|
.num_reg_defaults = ARRAY_SIZE(ak4535_reg_defaults),
|
|
};
|
|
|
|
static const struct snd_soc_component_driver soc_component_dev_ak4535 = {
|
|
.resume = ak4535_resume,
|
|
.set_bias_level = ak4535_set_bias_level,
|
|
.controls = ak4535_snd_controls,
|
|
.num_controls = ARRAY_SIZE(ak4535_snd_controls),
|
|
.dapm_widgets = ak4535_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(ak4535_dapm_widgets),
|
|
.dapm_routes = ak4535_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(ak4535_audio_map),
|
|
.suspend_bias_off = 1,
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
.endianness = 1,
|
|
.non_legacy_dai_naming = 1,
|
|
};
|
|
|
|
static int ak4535_i2c_probe(struct i2c_client *i2c,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
struct ak4535_priv *ak4535;
|
|
int ret;
|
|
|
|
ak4535 = devm_kzalloc(&i2c->dev, sizeof(struct ak4535_priv),
|
|
GFP_KERNEL);
|
|
if (ak4535 == NULL)
|
|
return -ENOMEM;
|
|
|
|
ak4535->regmap = devm_regmap_init_i2c(i2c, &ak4535_regmap);
|
|
if (IS_ERR(ak4535->regmap)) {
|
|
ret = PTR_ERR(ak4535->regmap);
|
|
dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
i2c_set_clientdata(i2c, ak4535);
|
|
|
|
ret = devm_snd_soc_register_component(&i2c->dev,
|
|
&soc_component_dev_ak4535, &ak4535_dai, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct i2c_device_id ak4535_i2c_id[] = {
|
|
{ "ak4535", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id);
|
|
|
|
static struct i2c_driver ak4535_i2c_driver = {
|
|
.driver = {
|
|
.name = "ak4535",
|
|
},
|
|
.probe = ak4535_i2c_probe,
|
|
.id_table = ak4535_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(ak4535_i2c_driver);
|
|
|
|
MODULE_DESCRIPTION("Soc AK4535 driver");
|
|
MODULE_AUTHOR("Richard Purdie");
|
|
MODULE_LICENSE("GPL");
|