mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
644 lines
18 KiB
644 lines
18 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* ak4641.c -- AK4641 ALSA Soc Audio driver |
|
* |
|
* Copyright (C) 2008 Harald Welte <[email protected]> |
|
* Copyright (C) 2011 Dmitry Artamonow <[email protected]> |
|
* |
|
* Based on ak4535.c by Richard Purdie |
|
*/ |
|
|
|
#include <linux/module.h> |
|
#include <linux/init.h> |
|
#include <linux/delay.h> |
|
#include <linux/gpio.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 <sound/tlv.h> |
|
#include <sound/ak4641.h> |
|
|
|
/* AK4641 register space */ |
|
#define AK4641_PM1 0x00 |
|
#define AK4641_PM2 0x01 |
|
#define AK4641_SIG1 0x02 |
|
#define AK4641_SIG2 0x03 |
|
#define AK4641_MODE1 0x04 |
|
#define AK4641_MODE2 0x05 |
|
#define AK4641_DAC 0x06 |
|
#define AK4641_MIC 0x07 |
|
#define AK4641_TIMER 0x08 |
|
#define AK4641_ALC1 0x09 |
|
#define AK4641_ALC2 0x0a |
|
#define AK4641_PGA 0x0b |
|
#define AK4641_LATT 0x0c |
|
#define AK4641_RATT 0x0d |
|
#define AK4641_VOL 0x0e |
|
#define AK4641_STATUS 0x0f |
|
#define AK4641_EQLO 0x10 |
|
#define AK4641_EQMID 0x11 |
|
#define AK4641_EQHI 0x12 |
|
#define AK4641_BTIF 0x13 |
|
|
|
/* codec private data */ |
|
struct ak4641_priv { |
|
struct regmap *regmap; |
|
unsigned int sysclk; |
|
int deemph; |
|
int playback_fs; |
|
}; |
|
|
|
/* |
|
* ak4641 register cache |
|
*/ |
|
static const struct reg_default ak4641_reg_defaults[] = { |
|
{ 0, 0x00 }, { 1, 0x80 }, { 2, 0x00 }, { 3, 0x80 }, |
|
{ 4, 0x02 }, { 5, 0x00 }, { 6, 0x11 }, { 7, 0x05 }, |
|
{ 8, 0x00 }, { 9, 0x00 }, { 10, 0x36 }, { 11, 0x10 }, |
|
{ 12, 0x00 }, { 13, 0x00 }, { 14, 0x57 }, { 15, 0x00 }, |
|
{ 16, 0x88 }, { 17, 0x88 }, { 18, 0x08 }, { 19, 0x08 } |
|
}; |
|
|
|
static const int deemph_settings[] = {44100, 0, 48000, 32000}; |
|
|
|
static int ak4641_set_deemph(struct snd_soc_component *component) |
|
{ |
|
struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component); |
|
int i, best = 0; |
|
|
|
for (i = 0 ; i < ARRAY_SIZE(deemph_settings); i++) { |
|
/* if deemphasis is on, select the nearest available rate */ |
|
if (ak4641->deemph && deemph_settings[i] != 0 && |
|
abs(deemph_settings[i] - ak4641->playback_fs) < |
|
abs(deemph_settings[best] - ak4641->playback_fs)) |
|
best = i; |
|
|
|
if (!ak4641->deemph && deemph_settings[i] == 0) |
|
best = i; |
|
} |
|
|
|
dev_dbg(component->dev, "Set deemphasis %d\n", best); |
|
|
|
return snd_soc_component_update_bits(component, AK4641_DAC, 0x3, best); |
|
} |
|
|
|
static int ak4641_put_deemph(struct snd_kcontrol *kcontrol, |
|
struct snd_ctl_elem_value *ucontrol) |
|
{ |
|
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); |
|
struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component); |
|
int deemph = ucontrol->value.integer.value[0]; |
|
|
|
if (deemph > 1) |
|
return -EINVAL; |
|
|
|
ak4641->deemph = deemph; |
|
|
|
return ak4641_set_deemph(component); |
|
} |
|
|
|
static int ak4641_get_deemph(struct snd_kcontrol *kcontrol, |
|
struct snd_ctl_elem_value *ucontrol) |
|
{ |
|
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); |
|
struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component); |
|
|
|
ucontrol->value.integer.value[0] = ak4641->deemph; |
|
return 0; |
|
}; |
|
|
|
static const char *ak4641_mono_out[] = {"(L + R)/2", "Hi-Z"}; |
|
static const char *ak4641_hp_out[] = {"Stereo", "Mono"}; |
|
static const char *ak4641_mic_select[] = {"Internal", "External"}; |
|
static const char *ak4641_mic_or_dac[] = {"Microphone", "Voice DAC"}; |
|
|
|
|
|
static const DECLARE_TLV_DB_SCALE(mono_gain_tlv, -1700, 2300, 0); |
|
static const DECLARE_TLV_DB_SCALE(mic_boost_tlv, 0, 2000, 0); |
|
static const DECLARE_TLV_DB_SCALE(eq_tlv, -1050, 150, 0); |
|
static const DECLARE_TLV_DB_SCALE(master_tlv, -12750, 50, 0); |
|
static const DECLARE_TLV_DB_SCALE(mic_stereo_sidetone_tlv, -2700, 300, 0); |
|
static const DECLARE_TLV_DB_SCALE(mic_mono_sidetone_tlv, -400, 400, 0); |
|
static const DECLARE_TLV_DB_SCALE(capture_tlv, -800, 50, 0); |
|
static const DECLARE_TLV_DB_SCALE(alc_tlv, -800, 50, 0); |
|
static const DECLARE_TLV_DB_SCALE(aux_in_tlv, -2100, 300, 0); |
|
|
|
|
|
static SOC_ENUM_SINGLE_DECL(ak4641_mono_out_enum, |
|
AK4641_SIG1, 6, ak4641_mono_out); |
|
static SOC_ENUM_SINGLE_DECL(ak4641_hp_out_enum, |
|
AK4641_MODE2, 2, ak4641_hp_out); |
|
static SOC_ENUM_SINGLE_DECL(ak4641_mic_select_enum, |
|
AK4641_MIC, 1, ak4641_mic_select); |
|
static SOC_ENUM_SINGLE_DECL(ak4641_mic_or_dac_enum, |
|
AK4641_BTIF, 4, ak4641_mic_or_dac); |
|
|
|
static const struct snd_kcontrol_new ak4641_snd_controls[] = { |
|
SOC_ENUM("Mono 1 Output", ak4641_mono_out_enum), |
|
SOC_SINGLE_TLV("Mono 1 Gain Volume", AK4641_SIG1, 7, 1, 1, |
|
mono_gain_tlv), |
|
SOC_ENUM("Headphone Output", ak4641_hp_out_enum), |
|
SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0, |
|
ak4641_get_deemph, ak4641_put_deemph), |
|
|
|
SOC_SINGLE_TLV("Mic Boost Volume", AK4641_MIC, 0, 1, 0, mic_boost_tlv), |
|
|
|
SOC_SINGLE("ALC Operation Time", AK4641_TIMER, 0, 3, 0), |
|
SOC_SINGLE("ALC Recovery Time", AK4641_TIMER, 2, 3, 0), |
|
SOC_SINGLE("ALC ZC Time", AK4641_TIMER, 4, 3, 0), |
|
|
|
SOC_SINGLE("ALC 1 Switch", AK4641_ALC1, 5, 1, 0), |
|
|
|
SOC_SINGLE_TLV("ALC Volume", AK4641_ALC2, 0, 71, 0, alc_tlv), |
|
SOC_SINGLE("Left Out Enable Switch", AK4641_SIG2, 1, 1, 0), |
|
SOC_SINGLE("Right Out Enable Switch", AK4641_SIG2, 0, 1, 0), |
|
|
|
SOC_SINGLE_TLV("Capture Volume", AK4641_PGA, 0, 71, 0, capture_tlv), |
|
|
|
SOC_DOUBLE_R_TLV("Master Playback Volume", AK4641_LATT, |
|
AK4641_RATT, 0, 255, 1, master_tlv), |
|
|
|
SOC_SINGLE_TLV("AUX In Volume", AK4641_VOL, 0, 15, 0, aux_in_tlv), |
|
|
|
SOC_SINGLE("Equalizer Switch", AK4641_DAC, 2, 1, 0), |
|
SOC_SINGLE_TLV("EQ1 100 Hz Volume", AK4641_EQLO, 0, 15, 1, eq_tlv), |
|
SOC_SINGLE_TLV("EQ2 250 Hz Volume", AK4641_EQLO, 4, 15, 1, eq_tlv), |
|
SOC_SINGLE_TLV("EQ3 1 kHz Volume", AK4641_EQMID, 0, 15, 1, eq_tlv), |
|
SOC_SINGLE_TLV("EQ4 3.5 kHz Volume", AK4641_EQMID, 4, 15, 1, eq_tlv), |
|
SOC_SINGLE_TLV("EQ5 10 kHz Volume", AK4641_EQHI, 0, 15, 1, eq_tlv), |
|
}; |
|
|
|
/* Mono 1 Mixer */ |
|
static const struct snd_kcontrol_new ak4641_mono1_mixer_controls[] = { |
|
SOC_DAPM_SINGLE_TLV("Mic Mono Sidetone Volume", AK4641_VOL, 7, 1, 0, |
|
mic_mono_sidetone_tlv), |
|
SOC_DAPM_SINGLE("Mic Mono Sidetone Switch", AK4641_SIG1, 4, 1, 0), |
|
SOC_DAPM_SINGLE("Mono Playback Switch", AK4641_SIG1, 5, 1, 0), |
|
}; |
|
|
|
/* Stereo Mixer */ |
|
static const struct snd_kcontrol_new ak4641_stereo_mixer_controls[] = { |
|
SOC_DAPM_SINGLE_TLV("Mic Sidetone Volume", AK4641_VOL, 4, 7, 0, |
|
mic_stereo_sidetone_tlv), |
|
SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4641_SIG2, 4, 1, 0), |
|
SOC_DAPM_SINGLE("Playback Switch", AK4641_SIG2, 7, 1, 0), |
|
SOC_DAPM_SINGLE("Aux Bypass Switch", AK4641_SIG2, 5, 1, 0), |
|
}; |
|
|
|
/* Input Mixer */ |
|
static const struct snd_kcontrol_new ak4641_input_mixer_controls[] = { |
|
SOC_DAPM_SINGLE("Mic Capture Switch", AK4641_MIC, 2, 1, 0), |
|
SOC_DAPM_SINGLE("Aux Capture Switch", AK4641_MIC, 5, 1, 0), |
|
}; |
|
|
|
/* Mic mux */ |
|
static const struct snd_kcontrol_new ak4641_mic_mux_control = |
|
SOC_DAPM_ENUM("Mic Select", ak4641_mic_select_enum); |
|
|
|
/* Input mux */ |
|
static const struct snd_kcontrol_new ak4641_input_mux_control = |
|
SOC_DAPM_ENUM("Input Select", ak4641_mic_or_dac_enum); |
|
|
|
/* mono 2 switch */ |
|
static const struct snd_kcontrol_new ak4641_mono2_control = |
|
SOC_DAPM_SINGLE("Switch", AK4641_SIG1, 0, 1, 0); |
|
|
|
/* ak4641 dapm widgets */ |
|
static const struct snd_soc_dapm_widget ak4641_dapm_widgets[] = { |
|
SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0, |
|
&ak4641_stereo_mixer_controls[0], |
|
ARRAY_SIZE(ak4641_stereo_mixer_controls)), |
|
SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0, |
|
&ak4641_mono1_mixer_controls[0], |
|
ARRAY_SIZE(ak4641_mono1_mixer_controls)), |
|
SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, |
|
&ak4641_input_mixer_controls[0], |
|
ARRAY_SIZE(ak4641_input_mixer_controls)), |
|
SND_SOC_DAPM_MUX("Mic Mux", SND_SOC_NOPM, 0, 0, |
|
&ak4641_mic_mux_control), |
|
SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, |
|
&ak4641_input_mux_control), |
|
SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0, |
|
&ak4641_mono2_control), |
|
|
|
SND_SOC_DAPM_OUTPUT("LOUT"), |
|
SND_SOC_DAPM_OUTPUT("ROUT"), |
|
SND_SOC_DAPM_OUTPUT("MOUT1"), |
|
SND_SOC_DAPM_OUTPUT("MOUT2"), |
|
SND_SOC_DAPM_OUTPUT("MICOUT"), |
|
|
|
SND_SOC_DAPM_ADC("ADC", "HiFi Capture", AK4641_PM1, 0, 0), |
|
SND_SOC_DAPM_PGA("Mic", AK4641_PM1, 1, 0, NULL, 0), |
|
SND_SOC_DAPM_PGA("AUX In", AK4641_PM1, 2, 0, NULL, 0), |
|
SND_SOC_DAPM_PGA("Mono Out", AK4641_PM1, 3, 0, NULL, 0), |
|
SND_SOC_DAPM_PGA("Line Out", AK4641_PM1, 4, 0, NULL, 0), |
|
|
|
SND_SOC_DAPM_DAC("DAC", "HiFi Playback", AK4641_PM2, 0, 0), |
|
SND_SOC_DAPM_PGA("Mono Out 2", AK4641_PM2, 3, 0, NULL, 0), |
|
|
|
SND_SOC_DAPM_ADC("Voice ADC", "Voice Capture", AK4641_BTIF, 0, 0), |
|
SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", AK4641_BTIF, 1, 0), |
|
|
|
SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4641_MIC, 3, 0), |
|
SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4641_MIC, 4, 0), |
|
|
|
SND_SOC_DAPM_INPUT("MICIN"), |
|
SND_SOC_DAPM_INPUT("MICEXT"), |
|
SND_SOC_DAPM_INPUT("AUX"), |
|
SND_SOC_DAPM_INPUT("AIN"), |
|
}; |
|
|
|
static const struct snd_soc_dapm_route ak4641_audio_map[] = { |
|
/* Stereo Mixer */ |
|
{"Stereo Mixer", "Playback Switch", "DAC"}, |
|
{"Stereo Mixer", "Mic Sidetone Switch", "Input Mux"}, |
|
{"Stereo Mixer", "Aux Bypass Switch", "AUX In"}, |
|
|
|
/* Mono 1 Mixer */ |
|
{"Mono1 Mixer", "Mic Mono Sidetone Switch", "Input Mux"}, |
|
{"Mono1 Mixer", "Mono Playback Switch", "DAC"}, |
|
|
|
/* Mic */ |
|
{"Mic", NULL, "AIN"}, |
|
{"Mic Mux", "Internal", "Mic Int Bias"}, |
|
{"Mic Mux", "External", "Mic Ext Bias"}, |
|
{"Mic Int Bias", NULL, "MICIN"}, |
|
{"Mic Ext Bias", NULL, "MICEXT"}, |
|
{"MICOUT", NULL, "Mic Mux"}, |
|
|
|
/* Input Mux */ |
|
{"Input Mux", "Microphone", "Mic"}, |
|
{"Input Mux", "Voice DAC", "Voice DAC"}, |
|
|
|
/* Line Out */ |
|
{"LOUT", NULL, "Line Out"}, |
|
{"ROUT", NULL, "Line Out"}, |
|
{"Line Out", NULL, "Stereo Mixer"}, |
|
|
|
/* Mono 1 Out */ |
|
{"MOUT1", NULL, "Mono Out"}, |
|
{"Mono Out", NULL, "Mono1 Mixer"}, |
|
|
|
/* Mono 2 Out */ |
|
{"MOUT2", NULL, "Mono 2 Enable"}, |
|
{"Mono 2 Enable", "Switch", "Mono Out 2"}, |
|
{"Mono Out 2", NULL, "Stereo Mixer"}, |
|
|
|
{"Voice ADC", NULL, "Mono 2 Enable"}, |
|
|
|
/* 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 ak4641_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 ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component); |
|
|
|
ak4641->sysclk = freq; |
|
return 0; |
|
} |
|
|
|
static int ak4641_i2s_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 ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component); |
|
int rate = params_rate(params), fs = 256; |
|
u8 mode2; |
|
|
|
if (rate) |
|
fs = ak4641->sysclk / rate; |
|
else |
|
return -EINVAL; |
|
|
|
/* set fs */ |
|
switch (fs) { |
|
case 1024: |
|
mode2 = (0x2 << 5); |
|
break; |
|
case 512: |
|
mode2 = (0x1 << 5); |
|
break; |
|
case 256: |
|
mode2 = (0x0 << 5); |
|
break; |
|
default: |
|
dev_err(component->dev, "Error: unsupported fs=%d\n", fs); |
|
return -EINVAL; |
|
} |
|
|
|
snd_soc_component_update_bits(component, AK4641_MODE2, (0x3 << 5), mode2); |
|
|
|
/* Update de-emphasis filter for the new rate */ |
|
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
|
ak4641->playback_fs = rate; |
|
ak4641_set_deemph(component); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int ak4641_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai, |
|
unsigned int fmt) |
|
{ |
|
struct snd_soc_component *component = codec_dai->component; |
|
u8 btif; |
|
int ret; |
|
|
|
/* interface format */ |
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
|
case SND_SOC_DAIFMT_I2S: |
|
btif = (0x3 << 5); |
|
break; |
|
case SND_SOC_DAIFMT_LEFT_J: |
|
btif = (0x2 << 5); |
|
break; |
|
case SND_SOC_DAIFMT_DSP_A: /* MSB after FRM */ |
|
btif = (0x0 << 5); |
|
break; |
|
case SND_SOC_DAIFMT_DSP_B: /* MSB during FRM */ |
|
btif = (0x1 << 5); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
ret = snd_soc_component_update_bits(component, AK4641_BTIF, (0x3 << 5), btif); |
|
if (ret < 0) |
|
return ret; |
|
|
|
return 0; |
|
} |
|
|
|
static int ak4641_i2s_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 = 0x02; |
|
break; |
|
case SND_SOC_DAIFMT_LEFT_J: |
|
mode1 = 0x01; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
return snd_soc_component_write(component, AK4641_MODE1, mode1); |
|
} |
|
|
|
static int ak4641_mute(struct snd_soc_dai *dai, int mute, int direction) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
|
|
return snd_soc_component_update_bits(component, AK4641_DAC, 0x20, mute ? 0x20 : 0); |
|
} |
|
|
|
static int ak4641_set_bias_level(struct snd_soc_component *component, |
|
enum snd_soc_bias_level level) |
|
{ |
|
struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component); |
|
struct ak4641_platform_data *pdata = component->dev->platform_data; |
|
int ret; |
|
|
|
switch (level) { |
|
case SND_SOC_BIAS_ON: |
|
/* unmute */ |
|
snd_soc_component_update_bits(component, AK4641_DAC, 0x20, 0); |
|
break; |
|
case SND_SOC_BIAS_PREPARE: |
|
/* mute */ |
|
snd_soc_component_update_bits(component, AK4641_DAC, 0x20, 0x20); |
|
break; |
|
case SND_SOC_BIAS_STANDBY: |
|
if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { |
|
if (pdata && gpio_is_valid(pdata->gpio_power)) |
|
gpio_set_value(pdata->gpio_power, 1); |
|
mdelay(1); |
|
if (pdata && gpio_is_valid(pdata->gpio_npdn)) |
|
gpio_set_value(pdata->gpio_npdn, 1); |
|
mdelay(1); |
|
|
|
ret = regcache_sync(ak4641->regmap); |
|
if (ret) { |
|
dev_err(component->dev, |
|
"Failed to sync cache: %d\n", ret); |
|
return ret; |
|
} |
|
} |
|
snd_soc_component_update_bits(component, AK4641_PM1, 0x80, 0x80); |
|
snd_soc_component_update_bits(component, AK4641_PM2, 0x80, 0); |
|
break; |
|
case SND_SOC_BIAS_OFF: |
|
snd_soc_component_update_bits(component, AK4641_PM1, 0x80, 0); |
|
if (pdata && gpio_is_valid(pdata->gpio_npdn)) |
|
gpio_set_value(pdata->gpio_npdn, 0); |
|
if (pdata && gpio_is_valid(pdata->gpio_power)) |
|
gpio_set_value(pdata->gpio_power, 0); |
|
regcache_mark_dirty(ak4641->regmap); |
|
break; |
|
} |
|
return 0; |
|
} |
|
|
|
#define AK4641_RATES (SNDRV_PCM_RATE_8000_48000) |
|
#define AK4641_RATES_BT (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
|
SNDRV_PCM_RATE_16000) |
|
#define AK4641_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) |
|
|
|
static const struct snd_soc_dai_ops ak4641_i2s_dai_ops = { |
|
.hw_params = ak4641_i2s_hw_params, |
|
.set_fmt = ak4641_i2s_set_dai_fmt, |
|
.mute_stream = ak4641_mute, |
|
.set_sysclk = ak4641_set_dai_sysclk, |
|
.no_capture_mute = 1, |
|
}; |
|
|
|
static const struct snd_soc_dai_ops ak4641_pcm_dai_ops = { |
|
.hw_params = NULL, /* rates are controlled by BT chip */ |
|
.set_fmt = ak4641_pcm_set_dai_fmt, |
|
.mute_stream = ak4641_mute, |
|
.set_sysclk = ak4641_set_dai_sysclk, |
|
.no_capture_mute = 1, |
|
}; |
|
|
|
static struct snd_soc_dai_driver ak4641_dai[] = { |
|
{ |
|
.name = "ak4641-hifi", |
|
.id = 1, |
|
.playback = { |
|
.stream_name = "HiFi Playback", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = AK4641_RATES, |
|
.formats = AK4641_FORMATS, |
|
}, |
|
.capture = { |
|
.stream_name = "HiFi Capture", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = AK4641_RATES, |
|
.formats = AK4641_FORMATS, |
|
}, |
|
.ops = &ak4641_i2s_dai_ops, |
|
.symmetric_rate = 1, |
|
}, |
|
{ |
|
.name = "ak4641-voice", |
|
.id = 1, |
|
.playback = { |
|
.stream_name = "Voice Playback", |
|
.channels_min = 1, |
|
.channels_max = 1, |
|
.rates = AK4641_RATES_BT, |
|
.formats = AK4641_FORMATS, |
|
}, |
|
.capture = { |
|
.stream_name = "Voice Capture", |
|
.channels_min = 1, |
|
.channels_max = 1, |
|
.rates = AK4641_RATES_BT, |
|
.formats = AK4641_FORMATS, |
|
}, |
|
.ops = &ak4641_pcm_dai_ops, |
|
.symmetric_rate = 1, |
|
}, |
|
}; |
|
|
|
static const struct snd_soc_component_driver soc_component_dev_ak4641 = { |
|
.controls = ak4641_snd_controls, |
|
.num_controls = ARRAY_SIZE(ak4641_snd_controls), |
|
.dapm_widgets = ak4641_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(ak4641_dapm_widgets), |
|
.dapm_routes = ak4641_audio_map, |
|
.num_dapm_routes = ARRAY_SIZE(ak4641_audio_map), |
|
.set_bias_level = ak4641_set_bias_level, |
|
.suspend_bias_off = 1, |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct regmap_config ak4641_regmap = { |
|
.reg_bits = 8, |
|
.val_bits = 8, |
|
|
|
.max_register = AK4641_BTIF, |
|
.reg_defaults = ak4641_reg_defaults, |
|
.num_reg_defaults = ARRAY_SIZE(ak4641_reg_defaults), |
|
.cache_type = REGCACHE_RBTREE, |
|
}; |
|
|
|
static int ak4641_i2c_probe(struct i2c_client *i2c, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct ak4641_platform_data *pdata = i2c->dev.platform_data; |
|
struct ak4641_priv *ak4641; |
|
int ret; |
|
|
|
ak4641 = devm_kzalloc(&i2c->dev, sizeof(struct ak4641_priv), |
|
GFP_KERNEL); |
|
if (!ak4641) |
|
return -ENOMEM; |
|
|
|
ak4641->regmap = devm_regmap_init_i2c(i2c, &ak4641_regmap); |
|
if (IS_ERR(ak4641->regmap)) |
|
return PTR_ERR(ak4641->regmap); |
|
|
|
if (pdata) { |
|
if (gpio_is_valid(pdata->gpio_power)) { |
|
ret = gpio_request_one(pdata->gpio_power, |
|
GPIOF_OUT_INIT_LOW, "ak4641 power"); |
|
if (ret) |
|
goto err_out; |
|
} |
|
if (gpio_is_valid(pdata->gpio_npdn)) { |
|
ret = gpio_request_one(pdata->gpio_npdn, |
|
GPIOF_OUT_INIT_LOW, "ak4641 npdn"); |
|
if (ret) |
|
goto err_gpio; |
|
|
|
udelay(1); /* > 150 ns */ |
|
gpio_set_value(pdata->gpio_npdn, 1); |
|
} |
|
} |
|
|
|
i2c_set_clientdata(i2c, ak4641); |
|
|
|
ret = devm_snd_soc_register_component(&i2c->dev, |
|
&soc_component_dev_ak4641, |
|
ak4641_dai, ARRAY_SIZE(ak4641_dai)); |
|
if (ret != 0) |
|
goto err_gpio2; |
|
|
|
return 0; |
|
|
|
err_gpio2: |
|
if (pdata) { |
|
if (gpio_is_valid(pdata->gpio_power)) |
|
gpio_set_value(pdata->gpio_power, 0); |
|
if (gpio_is_valid(pdata->gpio_npdn)) |
|
gpio_free(pdata->gpio_npdn); |
|
} |
|
err_gpio: |
|
if (pdata && gpio_is_valid(pdata->gpio_power)) |
|
gpio_free(pdata->gpio_power); |
|
err_out: |
|
return ret; |
|
} |
|
|
|
static int ak4641_i2c_remove(struct i2c_client *i2c) |
|
{ |
|
struct ak4641_platform_data *pdata = i2c->dev.platform_data; |
|
|
|
if (pdata) { |
|
if (gpio_is_valid(pdata->gpio_power)) { |
|
gpio_set_value(pdata->gpio_power, 0); |
|
gpio_free(pdata->gpio_power); |
|
} |
|
if (gpio_is_valid(pdata->gpio_npdn)) |
|
gpio_free(pdata->gpio_npdn); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct i2c_device_id ak4641_i2c_id[] = { |
|
{ "ak4641", 0 }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, ak4641_i2c_id); |
|
|
|
static struct i2c_driver ak4641_i2c_driver = { |
|
.driver = { |
|
.name = "ak4641", |
|
}, |
|
.probe = ak4641_i2c_probe, |
|
.remove = ak4641_i2c_remove, |
|
.id_table = ak4641_i2c_id, |
|
}; |
|
|
|
module_i2c_driver(ak4641_i2c_driver); |
|
|
|
MODULE_DESCRIPTION("SoC AK4641 driver"); |
|
MODULE_AUTHOR("Harald Welte <[email protected]>"); |
|
MODULE_LICENSE("GPL");
|
|
|