模块介绍

   - Codec DAI (Digital Audio Interface)和PCM的配置信息；
   - Codec的IO控制方式(I2C,SPI等);
   - Mixer和其他的音频控件;
   - Codec和ALSA音频操作接口;

linux-3.10/sound/soc/sunxi/
├── sun3iw1_ac101.c // daudio+ac101的machine驱动
├── sun3iw1_codec.c // codec 驱动
├── sun3iw1_codec.h
├── sun3iw1_daudio.c // daudio的platform驱动
├── sun3iw1_daudio.h
├── sun3iw1_sndcodec.c // codec machine驱动
├── sunxi_cpudai.c // codec platform驱动
├── sunxi_cpudai.h
├── sunxi_dma.c //通用文件，提供注册platform驱动的接口及相关函数集
├── sunxi_dma.h
├── sunxi_rw_func.c //通用文件，读写模拟/数字寄存器的接口
└── sunxi_rw_func.h

linux-3.10/sound/soc/codecs/
├── ac101.c // daudio+ac101的codec驱动
└── ac101.h

Device Drivers --->
<*> Sound card support --->
    <*> Advanced Linux Sound Architecture --->
        <*> ALSA for SoC audio support --->
            <*> ASoC support for SUNXI --->
                <*> ASoC support for sun3iw1 audiocodec
                <*> ASoC support for internal-codec cpudai
                <*> ASoC support for sun3iw1 audiocodec machine

[sndcodec]
sndcodec_used = 0x1
;------------------------------------------------------------------------------
[cpudai]
cpudai_used = 0x1
;------------------------------------------------------------------------------
[codec]
codec_used = 0x1
headphonevol = 0x3b
maingain = 0
pa_sleep_time = 30
gpio-spk = port:PD03<1><1><default><default>
gpio_shdn = 1

播歌
DACL --> HP_L Mux --> HPOUTL
DACR --> HP_R Mux --> HPOUTR

录制单MIC数据
MICIN --> ADC Mixer -> ADC

录制内部AEC数据(不需要外围回采电路)
Left Output Mixer --> ADC Mixer -> ADC
Right Output Mixer --> ADC Mixer -> ADC

通过MICIN录音：
amixer -D hw:audiocodec cset name='ADC MIC Boost AMP en' 1
amixer -D hw:audiocodec cset name='ADC mixer mute for mic' 1
amixer -D hw:audiocodec cset name='ADC MIC Boost AMP gain control' 4

amixer -D hw:audiocodec cset name='ADC mixer mute for left ouput' 1

Device Drivers --->
<*> Sound card support --->
        <*> Advanced Linux Sound Architecture --->
            <*> ALSA for SoC audio support --->
                <*> ASoC support for SUNXI --->
                    <*> ASoC support for daudio platform
                    <*> ASoC support for sun3iw1 & ac101 daudio machine

[snddaudio0]
snddaudio0_used = 1
over_sample_rate = 128
[daudio0]
daudio0_used = 1
word_select_size = 32
pcm_sync_period = 32
pcm_lsb_first = 0
over_sample_rate = 128
slot_width_select = 16
pcm_sync_type = 0
pcm_start_slot = 0
tdm_config = 1

Device Drivers --->
    <*> Sound card support --->
        <*> Advanced Linux Sound Architecture --->
            <*> ALSA for SoC audio support --->
                <*> AC101 Codec
                <*> ASoC support for SUNXI --->
                    <*> ASoC support for daudio platform
                    <*> ASoC support for sun3iw1 & ac101 daudio machine

linux-3.10/arch/arm/boot/dts/sun3iw1p1-sitar-mic2.dts
twi1: twi@0x01c27400{
    ac101@1a {
        compatible = "x-powers,ac101";
        reg = <0x1a>;
        audio_int_ctrl = <&pio PL 12 6 1 1 0>;
        audio_pa_ctrl = <&pio PG 13 1 1 1 0>;
        speaker_val = <0x1b>;
        headset_val = <0x3b>;
        single_speaker_val = <0x19>;
        double_speaker_val = <0x1b>;
        speaker_double_used = <1>;
        earpiece_val = <0x1e>;
        mainmic_val = <0x4>;
        headsetmic_val = <0x4>;
        dmic_used = <0>;
        adc_digital_val = <0xb0b0>;
        agc_used = <0>;
        drc_used = <1>;
        linein_to_spk_used = <0>;
        linein_to_hp_used = <0>;
        linein_to_aif2_used = <0>;
        };
}

[snddaudio0]
snddaudio0_used = 1
over_sample_rate = 128
sunxi,snddaudio-codec = "ac101.1-001a"
sunxi,snddaudio-codec-dai = "ac101"

[daudio0]
daudio0_used = 1
word_select_size = 32
pcm_sync_period = 32
pcm_lsb_first = 0
over_sample_rate = 128
slot_width_select = 16
pcm_sync_type = 0
pcm_start_slot = 0
tdm_config = 1

aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

amixer -Dhw:audiocodec cset name='headphone volume' 50

/etc/init.d/rc.final

arecord -Dhw:sndac1011001a -f S16_LE -r 16000 -c 2 /tmp/test.wav

linux-4.9/sound/soc/sunxi/
├── sunxi-pcm.c //提供注册platform驱动的接口及相关函数集
├── sunxi-pcm.h
├── sun8iw8
│   ├── sunxi_codec.c // cpudai驱动
│   ├── sunxi_codecdma.c // codec platform驱动
│   ├── sun8iw8_sndcodec_new.c // codec驱动
│   └── sunxi_sndcodec.c // codec machine驱动
├── sunxi-daudio.c // daudio platform驱动
└── sunxi-snddaudio.c // daudio machine驱动

linux-4.9/sound/soc/soc-utils.c // daudio codec驱动

Device Drivers --->
    <*> Sound card support --->
        <*> Advanced Linux Sound Architecture --->
            <*> ALSA for SoC audio support --->
                <*> Audiocodec for the SUNXI chips

[codec]
headphone_vol = 0x3b
lineout_vol = 0x1a
audio_pa_ctrl = port:PB05<1><default><default><0>
adcagc_used = 0
adcdrc_used = 0
dacdrc_used = 0
adchpf_used = 0
dachpf_used = 0

播歌
DACL --> Left Output Mixer --> LINEOUTL
DACR --> Right Output Mixer --> LINEOUTR

录音
MIC1P --> LADC input Mixer --> ADCL
MIC2P --> RADC input Mixer --> ADCR

通过lineout播放：
amixer -D hw:audiocodec cset name='SPK_L Mux' 1
amixer -D hw:audiocodec cset name='SPK_R Mux' 1
amixer -D hw:audiocodec cset name='Right Output Mixer DACR Switch' 1
amixer -D hw:audiocodec cset name='Left Output Mixer DACL Switch' 1
amixer -D hw:audiocodec cset name='digital volume' 6

通过MIC1,MIC2录音:
amixer -D hw:audiocodec cset name='LADC input Mixer MIC1 boost Switch' 1
amixer -D hw:audiocodec cset name='RADC input Mixer MIC2 boost Switch' 1
amixer -D hw:audiocodec cset name='MIC2 SRC' 0
amixer -D hw:audiocodec cset name='MIC1 boost AMP gain control' 4
amixer -D hw:audiocodec cset name='MIC2 boost AMP gain control' 4

Device Drivers --->
    <*> Sound card support --->
        <*> Advanced Linux Sound Architecture --->
            <*> ALSA for SoC audio support --->
                <*> Allwinner Digital Audio Support

[tdm0]
daudio_used = 0
daudio_master = 4
daudio_select = 1
audio_format = 1
signal_inversion = 1
sample_resolution = 16
slot_width_select = 16
pcm_lrck_period = 32
pcm_lrckr_period = 1
msb_lsb_first = 0
sign_extend = 0
tx_data_mode = 0
rx_data_mode = 0
;i2s_mclk = port:PB08<2><1><default><default>
i2s_bclk = port:PG11<2><1><default><default>
i2s_lrclk = port:PG10<2><1><default><default>
i2s_dout0 = port:PG12<2><1><default><default>
i2s_dout1 =
i2s_dout2 =
i2s_dout3 =
i2s_din = port:PG13<2><1><default><default>

amixer -D hw:audiocodec cset name='SPK_L Mux' 1
amixer -D hw:audiocodec cset name='SPK_R Mux' 1
amixer -D hw:audiocodec cset name='Lineout volume' 24
amixer -D hw:audiocodec cset name='Right Output Mixer DACR Switch' 1
amixer -D hw:audiocodec cset name='Left Output Mixer DACL Switch' 1
amixer -D hw:audiocodec cset name='digital volume' 0
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

amixer -Dhw:audiocodec cset name='Lineout volume' 50

amixer -D hw:audiocodec cset name='LADC input Mixer MIC1 boost Switch' 1
amixer -D hw:audiocodec cset name='RADC input Mixer MIC2 boost Switch' 1
amixer -D hw:audiocodec cset name='MIC1 boost AMP gain control' 4
amixer -D hw:audiocodec cset name='MIC2 SRC' 0
amixer -D hw:audiocodec cset name='MIC2 boost AMP gain control' 4

arecord -Dhw:audiocodec -f S16_LE -r 16000 -c 2 /tmp/test.wav

linux-3.4/sound/soc/sunxi/
├── audiocodec
│ ├── sun8iw8_sndcodec_new.c // codec 驱动
│ ├── sun8iw8_sndcodec.h
│ ├── sunxi_codec.c // cpu dai驱动
│ ├── sunxi_sndcodec.c // codec machine驱动
│ ├── sunxi_codecdma.c // codec platform驱动
│ └── sunxi_codecdma.h
└── daudio0
    ├── snddaudio0.c // daudio codec驱动
    ├── sunxi-daudio0.c // daudio cpu dai驱动
    ├── sunxi-daudio0.h
    ├── sunxi-daudiodma0.c // daudio platform 驱动
    ├── sunxi-daudiodma0.h
    └── sunxi-snddaudio0.c // daudio machine驱动

Device Drivers --->
<*> Sound card support --->
    <*> Advanced Linux Sound Architecture --->
        <*> ALSA for SoC audio support --->
            <*> Audiocodec for the SUNXI chips
            <*> Audiocodec Machine for codec chips
            <*> Audiocodec for the SUN8IW8 chips

[audio0]
headphone_vol = 0x3b
lineout_vol = 0x1a
audio_pa_ctrl = port:PB05<1><default><default><0>
audio_pa_active_level = 1
adcagc_used = 0
adcdrc_used = 0
dacdrc_used = 0
adchpf_used = 0
dachpf_used = 0

播歌
DACL --> Left Output Mixer --> LINEOUTL
DACR --> Right Output Mixer --> LINEOUTR

录音
MIC1P --> LADC input Mixer --> ADCL

通过lineout播放：
amixer -D hw:audiocodec cset name='SPK_L Mux' 1
amixer -D hw:audiocodec cset name='SPK_R Mux' 1
amixer -D hw:audiocodec cset name='Right Output Mixer DACR Switch' 1
amixer -D hw:audiocodec cset name='Left Output Mixer DACL Switch' 1
amixer -D hw:audiocodec cset name='digital volume' 0

通过MIC1录音:
amixer -D hw:audiocodec cset name='LADC input Mixer MIC1 boost Switch' 1
amixer -D hw:audiocodec cset name='MIC1 boost AMP gain control' 4

Device Drivers --->
<*> Sound card support --->
    <*> Advanced Linux Sound Architecture --->
        <*> ALSA for SoC audio support --->
            <*> SoC daudio0 tdm interface for SUNXI chips
            <*> Daudio0 Public Machine for SUNXI chips

[tdm0]
daudio_used = 1
daudio_master = 4
daudio_select = 1
audio_format = 1
signal_inversion = 1
sample_resolution = 16
slot_width_select = 16
pcm_lrck_period = 32
pcm_lrckr_period = 1
msb_lsb_first = 0
sign_extend = 0
tx_data_mode = 0
rx_data_mode = 0
;i2s_mclk = port:PB08<2><1><default><default>
i2s_bclk = port:PG11<2><1><default><default>
i2s_lrclk = port:PG10<2><1><default><default>
i2s_dout0 = port:PG12<2><1><default><default>
i2s_dout1 =
i2s_dout2 =
i2s_dout3 =
i2s_din = port:PG13<2><1><default><default>

amixer -D hw:audiocodec cset name='SPK_L Mux' 1
amixer -D hw:audiocodec cset name='SPK_R Mux' 1
amixer -D hw:audiocodec cset name='Lineout volume' 24
amixer -D hw:audiocodec cset name='Right Output Mixer DACR Switch' 1
amixer -D hw:audiocodec cset name='Left Output Mixer DACL Switch' 1
amixer -D hw:audiocodec cset name='digital volume' 0
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

amixer -Dhw:audiocodec cset name='Lineout volume' 50

amixer -D hw:audiocodec cset name='LADC input Mixer MIC1 boost Switch' 1
amixer -D hw:audiocodec cset name='MIC1 boost AMP gain control' 4

arecord -Dhw:audiocodec -f S16_LE -r 16000 -c 1 /tmp/test.wav

linux-3.4/sound/soc/sunxi/
├── audiocodec
│   ├── sun8iw5_machine.c // codec machine驱动
│   ├── sun8iw5_sndcodec.c // codec驱动
│   ├── sun8iw5_sndcodec.h
│   ├── sunxi_codecdma.c // codec platform驱动
│   ├── sunxi_codecdma.h
│   └── sunxi_codec.c // cpu dai驱动
├── i2s0
│ ├── sndi2s0.c // i2s codec驱动
│ ├── sunxi-i2s0dma.c // i2s platform驱动
│ ├── sunxi-i2s0dma.h
│ ├── sunxi-i2s0.c // i2s cpu dai驱动
│ ├── sunxi-i2s0.h
│ └── sunxi-sndi2s0.c // i2s machine驱动
└── i2s1
    ├── sndi2s1.c // i2s codec驱动
    ├── sunxi-i2s1dma.c // i2s platform驱动
    ├── sunxi-i2s1dma.h
    ├── sunxi-i2s1.c // i2s cpu dai驱动
    ├── sunxi-i2s1.h
    └── sunxi-sndi2s1.c // i2s machine驱动

Device Drivers --->
<*> Sound card support --->
    <*> Advanced Linux Sound Architecture --->
        <*> ALSA for SoC audio support --->
            <*> Audiocodec for the SUNXI chips
            <*> Audiocodec Machine for sun8iw5 chips
            <*> Audiocodec for the SUN8IW5 chips

[audio0]
audio_used = 1
headphone_vol = 0x3b
pa_double_used = 1
headphone_direct_used = 1
headset_mic_vol = 3
main_mic_vol = 1
;audio_linein_detect = port:PB07<0><default><default><0>
audio_pa_ctrl = port:PD11<1><default><default><0>
pa_gpio_reverse = 0
aif2_used = 0
aif3_used = 0
headphone_mute_used = 0
aif1_lrlk_div = 0x40

通过HPOUTL/R播歌
AIF1DACL --> AIF1IN0L Mux --> DACL Mixer --> Left Output Mixer --> HP_L Mux --> HPOUTL
AIF1DACR --> AIF1IN0R Mux --> DACR Mixer --> Right Output Mixer --> HP_R Mux --> HPOUTR

通过MIC1录音
AIF1ADCL <-- AIF1OUT0L Mux <-- AIF1 AD0L Mixer <-- ADCL Mux <-- LEFT ADC input Mixer <--
MIC1 PGA <-- MIC1P/N

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
<*> SoC i2s0 interface for SUNXI chips
<*> SoC i2s1 interface for SUNXI chips

[i2s0]
i1s0_used = 1
i2s0_channel = 2
i2s0_master = 4
i2s0_select = 1
audio_format = 1
signal_inversion = 1
over_sample_rate = 512
sample_resolution = 16
word_select_size = 32
pcm_sync_period = 256
msb_lsb_first = 0
slot_index = 0
slot_width = 16
frame_width = 1
tx_data_mode = 1
rx_data_mode = 1
i2s0_mclk =
i2s0_bclk = port:PB05<2><1><default><default>
i2s0_lrclk = port:PB04<2><1><default><default>
i2s0_dout0 = port:PB06<2><1><default><default>
i2s0_dout1 =
i2s0_dout2 =
i2s0_dout3 =
i2s0_din = port:PB07<2><1><default><default>

通过speaker播放
amixer cset name='AIF1IN0L Mux' 'AIF1_DA0L';
amixer cset name='AIF1IN0R Mux' 'AIF1_DA0R';
amixer cset name='DACL Mixer AIF1DA0L Switch' 1;
amixer cset name='DACR Mixer AIF1DA0R Switch' 1;
amixer cset name='HP_L Mux' 'DACL HPL Switch' ;
amixer cset name='HP_R Mux' 'DACR HPR Switch';
amixer cset name='External Speaker Switch' 1;
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

mixer cset name='AIF1IN0L Mux' 'AIF1_DA0L';
amixer cset name='AIF1IN0R Mux' 'AIF1_DA0R';
amixer cset name='DACL Mixer AIF1DA0L Switch' 1;
amixer cset name='DACR Mixer AIF1DA0R Switch' 1;
amixer cset name='HP_L Mux' 'DACL HPL Switch' ;
amixer cset name='HP_R Mux' 'DACR HPR Switch';
amixer cset name='Headphone Switch' 1;
aplay -Dhw:sndcodec /mnt/UDISK/1KHz_0dB_16000.wav

amixer -Dhw:sndcodec cset name='headphone volume' 58

amixer cset name='LEFT ADC input Mixer MIC1 boost Switch' 1
amixer cset name='AIF1 AD0L Mixer ADCL Switch' 1
amixer cset name='AIF1OUT0L Mux' 'AIF1_AD0L'
amixer cset name='MIC1 boost amplifier gain' 4
arecord -Dhw:sndcodec -f S16_LE -r 16000 -c 1 /tmp/test.wav

linux-4.4/sound/soc/sunxi/
├── sun50iw1-codec.c // codec驱动
├── sun50iw1-codec.h
├── sun50iw1-sndcodec.c // codec machine驱动
├── sunxi-inter-i2s.c // codec platform驱动
├── sunxi-daudio.c // daudio platform驱动
├── sunxi-daudio.h
├── sunxi-snddaudio.c // daudio machine驱动
├── sunxi-snddaudio.h
├── sunxi-pcm.c //通用文件，提供注册platform驱动的接口及相关函数集
├── sunxi-pcm.h
├── sunxi_rw_func.c //通用文件，读写模拟/数字寄存器的接口
├── sunxi_rw_func.h
├── spdif-utils.c // spdif codec驱动
├── sunxi-sndspdif.c // spdif machine驱动
├── sunxi-spdif.c // spdif platform驱动
├── sunxi-spdif.h
├── sunxi-hdmi.c // hdmi codec驱动
└── sunxi-sndhdmi.c // hdmi machine驱动

hdmi platform模型使用的是sunxi-daudio.c
linux-4.4/sound/soc/soc-utils.c // snd-soc-dummmy驱动,可用于daudio codec模型
linux-4.4/sound/soc/codecs/ac108.c // ac108 codec驱动
linux-4.4/sound/soc/codecs/tas5731.c // tas5731数字功放codec驱动

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Sun50iw1 Codec Support

[sndcodec]
sndcodec_used = 0x1
aif2fmt = 0x3
aif3fmt = 0x3
aif2master = 0x1
linein_detect = port:PH05<6><default><default><default>
hp_detect_case = 0x1
;------------------------------------------------------------------------------
[i2s]
i2s_used = 0x1
;-------------------------------------------------------------------------------
[codec]
codec_used = 0x1
headphonevol = 0x38

spkervol = 0x1d
earpiecevol = 0x1e
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x1
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
aif2config = 0x0
aif3config = 0x0
aif1_lrlk_div = 0x40
aif2_lrlk_div = 0x40
pa_sleep_time = 0x0a
dac_digital_vol = 0x9898
gpio-spk =

通过HPOUTL/R播歌
AIF1DACL --> AIF1IN0L Mux --> DACL Mixer --> HP_L Mux --> HPOUTL
AIF1DACR --> AIF1IN0R Mux --> DACR Mixer --> HP_R Mux --> HPOUTR
通过MIC1,2录音
AIF1ADCL <-- AIF1OUT0L Mux <-- AIF1 AD0L Mixer <-- ADCL Mux <-- LADC input Mixer <-- MIC1
PGA <-- MIC1P/N
AIF1ADCR <-- AIF1OUT0R Mux <-- AIF1 AD0R Mixer <-- ADCR Mux <-- RADC input Mixer <-- MIC2
PGA <-- MIC2P/N

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Digital Audio Support

[snddaudio0]
snddaudio0_used = 1
;-----------------------------------------------------------------------------
[daudio0]
daudio0_used = 1
pcm_lrck_period = 0x60
pcm_lrckr_period = 0x01
slot_width_select = 0x18
pcm_lsb_first = 0x0
tx_data_mode = 0x0
rx_data_mode = 0x0
daudio_master = 0x04
audio_format = 0x01
signal_inversion = 0x01

frametype = 0x0
tdm_config = 0x01
clk_active = 0x0

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner SPDIF Support

[spdif]
spdif_used = 0
[sndspdif]
sndspdif_used = 0

linux-4.4/sound/soc/sunxi/spdif-utils.c

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Digital Audio Support
CODEC drivers --->
<*> Sunxi AC108 Codec

twi1: twi@0x01c2b000 {
status = "okay";
ac108@35{
compatible = "Allwinnertech,MicArray_1";
debug_mode = <0>;
pga_gain = <0x32>;
ref_pga_gain = <0x08>;
ref_chip_addr = <0x3b>;
ref_channel_num = <0x2>;
pa_double_used = <0x1>;

codec_mic_used = <0x0>;
gpio-power = <&r_pio PL 12 1 1 1 1>;
twi_bus = <1>;
voltage_enable = "nocare";
power_vol = <0x0>;
slot_width = <0x18>;
reg = <0x35>;
};
ac108@3b{
compatible = "Allwinnertech,MicArray_0";
reg = <0x3b>;
debug_mode = <0>;
pga_gain = <0x32>;
ref_pga_gain = <0x08>;
ref_chip_addr = <0x3b>;
ref_channel_num = <0x2>;
pa_double_used = <0x1>;
codec_mic_used = <0x0>;
twi_bus = <1>;
voltage_enable = "nocare";
gpio-power = <&r_pio PL 12 1 1 1 1>;
power_vol = <0x0>;
slot_width = <0x18>;
};
};

snddaudio0:sound@1 {
sunxi,snddaudio-codec = "ac108.1-0035";
sunxi,snddaudio-codec-dai = "ac108-pcm1";
};

arecord -Dhw:sndac10810035 -f S16_LE -r 16000 -c 8 /tmp/test.wav

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Digital Audio Support
CODEC drivers --->
<*> TAS5731 PA

twi0: twi@0x01c2ac00 {
status = "okay";
tas5731-codec@1b{
compatible = "Allwinnertech,tas5731_PA";
tas5731_power = <&pio PH 8 1 1 1 1>;
tas5731_reset = <&pio PB 2 1 1 1 1>;
amp_poweren = <&r_pio PL 7 1 1 1 1>;
regulator_name = "vcc-amp";
reg = <0x1b>;
};
};

snddaudio1:sound@2 {
sunxi,snddaudio-codec = "tas5731-codec.0-001b";
sunxi,snddaudio-codec-dai = "tas5731_audio";
};

aplay -Dhw:sndtas5731codec /mnt/UDISK/16000-stere-10s.wav

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner HDMI Audio Support
<*> Allwinner Digital Audio Support

[daudio2]
daudio2_used = 1
[sndhdmi]
sndhdmi_used = 1

amixer -Dhw:audiocodec cset name='AIF1IN0L Mux' 'AIF1_DA0L'
amixer -Dhw:audiocodec cset name='AIF1IN0R Mux' 'AIF1_DA0R'
amixer -Dhw:audiocodec cset name='DACL Mixer AIF1DA0L Switch' 1
amixer -Dhw:audiocodec cset name='DACR Mixer AIF1DA0R Switch' 1
amixer -Dhw:audiocodec cset name='HP_R Mux' 'DACR HPR Switch'
amixer -Dhw:audiocodec cset name='HP_L Mux' 'DACL HPL Switch'
amixer -Dhw:audiocodec cset name='Headphone Switch' 1
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

amixer -Dhw:audiocodec cset name='headphone volume' 60

amixer -Dhw:audiocodec cset name='LADC input Mixer MIC1 boost Switch' 1
amixer -Dhw:audiocodec cset name='RADC input Mixer MIC2 boost Switch' 1
amixer -Dhw:audiocodec cset name='AIF1 AD0L Mixer ADCL Switch' 1
amixer -Dhw:audiocodec cset name='AIF1 AD0R Mixer ADCR Switch' 1
amixer -Dhw:audiocodec cset name='AIF1OUT0L Mux' 'AIF1_AD0L'
amixer -Dhw:audiocodec cset name='AIF1OUT0R Mux' 'AIF1_AD0R'
arecord -Dhw:audiocodec -f S16_LE -r 16000 -c 2 /tmp/test.wav

linux-4.9/sound/soc/sunxi/
├── sun50iw3-codec.c // codec驱动
├── sun50iw3-codec.h
├── sun50iw3-sndcodec.c // codec machine驱动
├── sunxi-inter-i2s.c // codec platform驱动

├── sunxi-inter-i2s.h
├── sunxi-daudio.c // daudio platform驱动
├── sunxi-daudio.h
├── sunxi-dmic.c // dmic platform驱动
├── sunxi-dmic.h
├── sunxi-pcm.c //通用文件，提供注册platform驱动的接口及相关函数集
├── sunxi-pcm.h
├── sunxi_rw_func.c //通用文件，读写模拟/数字寄存器的接口
├── sunxi_rw_func.h
├── sunxi-snddaudio.c // daudio machine驱动
├── sunxi-snddaudio.h
├── sunxi-snddmic.c // dmic machine驱动
└── sunxi-snddmic.h
linux-4.9/sound/soc/codecs/dmic.c // dmic codec驱动
linux-4.9/sound/soc/soc-utils.c // daudio codec驱动

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Sun50iw3 Codec Support

[sndcodec]
sndcodec_used = 0x1
aif2fmt = 0x3
aif3fmt = 0x3
aif2master = 0x1
hp_detect_case = 0x0
;------------------------------------------------------------------------------
[i2s]
i2s_used = 0x1
;-------------------------------------------------------------------------------
[codec]
codec_used = 0x1
headphonevol = 0x3b
spkervol = 0x1b
maingain = 0x4
headsetmicgain = 0x4
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0
dacdrc_cfg = 0x0
dachpf_cfg = 0x0
aif2config = 0x0
aif3config = 0x0
gpio-spk = port:PB3<1><default><default><0>

通过SPKL/R播歌
AIF1DACL --> AIF1IN0L Mux --> DACL Mixer --> Left Output Mixer --> SPK_L Mux --> SPKL
AIF1DACR --> AIF1IN0R Mux --> DACR Mixer --> Right Output Mixer --> SPK_R Mux --> SPKR
通过LINEOUTL/R播歌
AIF1DACL --> AIF1IN0L Mux --> DACL Mixer --> Left Output Mixer --> LINEOUTL Mux -->
LINEOUTL
AIF1DACR --> AIF1IN0R Mux --> DACR Mixer --> Right Output Mixer --> LINEOUTR Mux -->
LINEOUTR
通过HPOUTL/R播歌
AIF1DACL --> AIF1IN0L Mux --> DACL Mixer --> HP_L Mux --> HPOUTL
AIF1DACR --> AIF1IN0R Mux --> DACR Mixer --> HP_R Mux --> HPOUTR
通过MIC1,2录音
AIF1ADCL <-- AIF1OUT0L Mux <-- AIF1 AD0L Mixer <-- LADC input Mixer <-- MIC1 PGA <-- MIC1P/
N
AIF1ADCR <-- AIF1OUT0R Mux <-- AIF1 AD0R Mixer <-- RADC input Mixer <-- MIC2 PGA <-- MIC2P/
N
通过LINEINL/R录音
AIF1ADCL <-- AIF1OUT0L Mux <-- AIF1 AD0L Mixer <-- LADC input Mixer <-- LINEINN
AIF1ADCR <-- AIF1OUT0R Mux <-- AIF1 AD0R Mixer <-- RADC input Mixer <-- LINEINP

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Digital Audio Support

[snddaudio0]
snddaudio0_used = 1
[daudio0]
pcm_lrck_period = 0x80
slot_width_select = 0x20
pcm_lsb_first = 0x0
tx_data_mode = 0x0
rx_data_mode = 0x0

daudio_master = 0x04
audio_format = 0x01
signal_inversion = 0x01
frametype = 0x0
tdm_config = 0x01
mclk_div = 0x1
daudio0_used = 1

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner DMIC Support

[dmic]
dmic_used = 0
[snddmic]
snddmic_used = 0

通过SPKL/R播歌,例如喇叭播歌
amixer -Dhw:audiocodec cset name='AIF1IN0L Mux' 'AIF1_DA0L'
amixer -Dhw:audiocodec cset name='AIF1IN0R Mux' 'AIF1_DA0R'
amixer -Dhw:audiocodec cset name='DACL Mixer AIF1DA0L Switch' 1
amixer -Dhw:audiocodec cset name='DACR Mixer AIF1DA0R Switch' 1
amixer -Dhw:audiocodec cset name='Left Output Mixer DACL Switch' 1
amixer -Dhw:audiocodec cset name='Right Output Mixer DACR Switch' 1
amixer -Dhw:audiocodec cset name='SPK_R Mux' 'MIXER_Switch'
amixer -Dhw:audiocodec cset name='SPK_L Mux' 'MIXEL_Switch'
amixer -Dhw:audiocodec cset name='External Speaker Switch' 1
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav
可通过下面命令调节硬件上的模拟音量:
amixer -Dhw:audiocodec cset name='speaker volume' 28

通过LINEOUTL/R播歌
amixer -Dhw:audiocodec cset name='AIF1IN0L Mux' 'AIF1_DA0L'
amixer -Dhw:audiocodec cset name='AIF1IN0R Mux' 'AIF1_DA0R'
amixer -Dhw:audiocodec cset name='DACL Mixer AIF1DA0L Switch' 1
amixer -Dhw:audiocodec cset name='DACR Mixer AIF1DA0R Switch' 1
amixer -Dhw:audiocodec cset name='Left Output Mixer DACL Switch' 1
amixer -Dhw:audiocodec cset name='Right Output Mixer DACR Switch' 1
amixer -Dhw:audiocodec cset name='LINEOUTL Mux' 'LOMIX'
amixer -Dhw:audiocodec cset name='LINEOUTR Mux' 'ROMIX'
amixer -Dhw:audiocodec cset name='Lineout Switch' 1
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav
可通过下面命令调节硬件上的模拟音量:
amixer -Dhw:audiocodec cset name='lineout volume' 28

通过HPOUTL/R播歌,例如耳机
amixer -Dhw:audiocodec cset name='AIF1IN0L Mux' 'AIF1_DA0L'
amixer -Dhw:audiocodec cset name='AIF1IN0R Mux' 'AIF1_DA0R'
amixer -Dhw:audiocodec cset name='DACL Mixer AIF1DA0L Switch' 1
amixer -Dhw:audiocodec cset name='DACR Mixer AIF1DA0R Switch' 1
amixer -Dhw:audiocodec cset name='HP_R Mux' 'DACR HPR Switch'
amixer -Dhw:audiocodec cset name='HP_L Mux' 'DACL HPL Switch'
amixer -Dhw:audiocodec cset name='Headphone Switch' 1
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

可通过下面命令调节硬件上的模拟音量:

amixer -Dhw:audiocodec cset name='headphone volume' 60

通过MIC1,MIC2录音
amixer -Dhw:audiocodec cset name='LADC input Mixer MIC1 boost Switch' 1
amixer -Dhw:audiocodec cset name='RADC input Mixer MIC2 boost Switch' 1
amixer -Dhw:audiocodec cset name='AIF1 AD0L Mixer ADCL Switch' 1
amixer -Dhw:audiocodec cset name='AIF1 AD0R Mixer ADCR Switch' 1
amixer -Dhw:audiocodec cset name='AIF1OUT0L Mux' 'AIF1_AD0L'
amixer -Dhw:audiocodec cset name='AIF1OUT0R Mux' 'AIF1_AD0R'
amixer -Dhw:audiocodec cset name='MIC1 boost AMP gain control' 4
amixer -Dhw:audiocodec cset name='MIC2 boost AMP gain control' 4
arecord -Dhw:audiocodec -f S16_LE -r 16000 -c 2 /tmp/test.wav

linux-4.9/sound/soc/sunxi/
├── spdif-utils.c // spdif codec驱动
├── sun8iw18-codec.c // codec驱动
├── sun8iw18-codec.h
├── sun8iw18-sndcodec.c // codec machine驱动
├── sunxi-cpudai.c // codec platform驱动
├── sunxi-daudio.c // daudio platform驱动
├── sunxi-daudio.h
├── sunxi-dmic.c // dmic platform驱动
├── sunxi-dmic.h
├── sunxi-mad.c //提供MAD相关功能接口
├── sunxi-mad.h
├── sunxi-pcm.c //通用文件，提供注册platform驱动的接口及相关函数集
├── sunxi-pcm.h
├── sunxi_rw_func.c //通用文件，读写模拟/数字寄存器的接口
├── sunxi_rw_func.h
├── sunxi-snddaudio.c // daudio machine驱动
├── sunxi-snddaudio.h
├── sunxi-snddmic.c // dmic machine驱动
├── sunxi-snddmic.h
├── sunxi-sndspdif.c // spdif machine驱动
├── sunxi-spdif.c // spdif platform驱动
└── sunxi-spdif.h
linux-4.9/sound/soc/codecs/dmic.c // dmic codec驱动
linux-4.9/sound/soc/soc-utils.c // daudio codec驱动

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Sun8iw18 Codec Support

[sndcodec]
sndcodec_used = 0x1
;------------------------------------------------------------------------------
[cpudai]
cpudai_used = 0x1
;-------------------------------------------------------------------------------
[codec]
codec_used = 0x1
digital_vol = 0x0
lineout_vol =0x1a
mic1gain = 0x4
mic2gain = 0x4
mic3gain = 0x0
adcgain = 0x3
adcagc_cfg = 0x0
adcdrc_cfg = 0x0
adchpf_cfg = 0x0

dacdrc_cfg = 0x0
dachpf_cfg = 0x0
pa_ctl_level = 0x1
pa_msleep_time = 160
gpio-spk = port:PH9<1><1><1><1>

播歌
Playback --> DACL --> Left LINEOUT Mux --> LINEOUTL --> External Speaker
Playback --> DACR --> Right LINEOUT Mux --> LINEOUTR --> External Speaker
录音
MIC1 --> MIC1 PGA ---> Left Input Mixer --> ADCL --> Capture
MIC2 --> MIC2 PGA ---> Right Input Mixer --> ADCL --> Capture
MIC3 --> MIC3 PGA ---> Xadc Input Mixer --> ADCL --> Capture

ADC gain volume计算方法：
应用层可设置范围:0～ 7
对应实际硬件设置的范围:-4.5~6dB, step: 1.5dB
换算方法:-4.5+(n\*1.5)
举例，设置0dB:
-4.5+(n\*1.5) = 0
n = 3
所以应用层上输入下面命令设置为0dB:
amixer -D hw:audiocodec cset name='ADC gain volume' 3

LINEOUT volume计算方法：
应用层可设置范围： 0 ～31 (设置为 0 或者 1 时，就是mute)
对应实际硬件设置的范围：-43.5~0dB, step：1.5dB
换算方法:-43.5+((n-2)\*1.5)
举例 1 ，设置0dB:
-43.5+((n-2)\*1.5) = 0
n = 31
所以应用层上输入下面命令设置为0dB:
amixer -D hw:audiocodec cset name='LINEOUT volume' 31
举例 2 ，设置-6dB:
-43.5+((n-2)\*1.5) = -6
n = 27
所以应用层上输入下面命令设置为-6dB:
amixer -D hw:audiocodec cset name='LINEOUT volume' 27

MIC1 gain volume计算方法：
应用层可设置范围： 0 ～7 (设置为 0 时，就是0dB)
对应实际硬件设置的范围：0dB或者15~33dB, step：3dB
换算方法:15+((n-1)*3)
举例，设置24dB:
15+((n-1)*3) = 24
n = 4
所以应用层上输入下面命令设置为24dB:
amixer -D hw:audiocodec cset name='MIC1 gain volume' 4

digital volume计算方法：
应用层可设置范围： 0 ～ 63
对应实际硬件设置的范围：-73.08~0dB, step：1.16dB
换算方法:-73.08+(n*1.16)
举例 1 ，设置0dB:
-73.08+(n*1.16) = 0
n = 63
所以应用层上输入下面命令设置为0dB:
amixer -D hw:audiocodec cset name='digital volume' 63
举例 2 ，设置-5.8dB:
-73.08+(n*1.16) = -5.8

n = 58
所以应用层上输入下面命令设置为-5.8dB:
amixer -D hw:audiocodec cset name='digital volume' 58

通过Speaker播放，差分输出：
amixer -D hw:audiocodec cset name='External Speaker Switch' 1
amixer -D hw:audiocodec cset name='digital volume' 63
amixer -D hw:audiocodec cset name='LINEOUT volume' 25
amixer -D hw:audiocodec cset name='Right LINEOUT Mux' 1

通过模拟MIC1, MIC2录音：
amixer -D hw:audiocodec cset name='Left Input Mixer MIC1 Boost Switch' 1
amixer -D hw:audiocodec cset name='Right Input Mixer MIC2 Boost Switch' 1
amixer -D hw:audiocodec cset name='MIC1 gain volume' 4
amixer -D hw:audiocodec cset name='MIC2 gain volume' 4

有两种AEC回路方式，具体看硬件如何设计
1)外部AEC
MIC1,MIC2录音；MIC3作为AEC,外部SPKP/N连接到MIC3.
amixer -D hw:audiocodec cset name='Left Input Mixer MIC1 Boost Switch' 1
amixer -D hw:audiocodec cset name='Right Input Mixer MIC2 Boost Switch' 1
amixer -D hw:audiocodec cset name='Xadc Input Mixer MIC3 Boost Switch' 1
amixer -D hw:audiocodec cset name='MIC1 gain volume' 4
amixer -D hw:audiocodec cset name='MIC2 gain volume' 4
amixer -D hw:audiocodec cset name='MIC3 gain volume' 0
2)内部AEC(可省去外部AEC电路)
MIC1,MIC2录音；MIC3作为AEC,使能内部DACL到MIC3的通路.
amixer -D hw:audiocodec cset name='Left Input Mixer MIC1 Boost Switch' 1
amixer -D hw:audiocodec cset name='Right Input Mixer MIC2 Boost Switch' 1
amixer -D hw:audiocodec cset name='Xadc Input Mixer DACL Switch' 1
amixer -D hw:audiocodec cset name='MIC1 gain volume' 4
amixer -D hw:audiocodec cset name='MIC2 gain volume' 4

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Digital Audio Support

[snddaudio0]
snddaudio0_used = 0
daudio_master = 4
audio_format = 1
signal_inversion = 1
[daudio0]
daudio0_used = 0
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0

[snddaudio0]
snddaudio0_used = 1
sunxi,snddaudio-codec = "ac108.1-003b";
sunxi,snddaudio-codec-dai = "ac108-pcm0";
daudio_master = 4
audio_format = 1
signal_inversion = 2
[daudio0]
daudio0_used = 1
slot_width_select = 32
pcm_lrck_period = 128
msb_lsb_first = 0
sign_extend = 0
frametype = 0
mclk_div = 1
tdm_config = 1
tx_data_mode = 0
rx_data_mode = 0
注意名称需要与codec驱动中配置的名称一致，如ac108驱动，路径：
linux-4.9/sound/soc/codecs/ac108.c
代码中snd_soc_register_codec注册codec驱动，其中codec device name为ac108.1-003b,
codec dai name为ac108-pcm0

name, codec dai name需要配置为dummy codec,可以如下配置：
   [snddaudio2]
   snddaudio2_used = 1
   sunxi,snddaudio-codec = "snd-soc-dummy"
   sunxi,snddaudio-codec-dai = "snd-soc-dummy-dai"
   daudio_master = 1
   audio_format = 5
   signal_inversion = 2
因为驱动中解析snddaudio-codec等字段时，判断出错的时候则使用默认codec"snd-soc-dummy",
所以如果sunxi,snddaudio-codec和sunxi,snddaudio-codec-dai不配置，或者配置为空的时候，
则默认使用dummy codec:
[snddaudio2]
snddaudio2_used = 1
daudio_master = 1
audio_format = 5
signal_inversion = 2
或者
[snddaudio2]
snddaudio2_used = 1
sunxi,snddaudio-codec =
sunxi,snddaudio-codec-dai =
daudio_master = 1
audio_format = 5
signal_inversion = 2

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner DMIC Support

[dmic]
dmic_used = 0
[snddmic]
snddmic_used = 0

dmic配置 dmic配置说明
dmic_used 是否使用dmic驱动。 0 ：不使用； 1 ：使用

snddmic配置 snddmic配置说明
snddmic_used 是否使用snddmic驱动。 0 ：不使用； 1 ：使用

linux-4.9/sound/soc/codecs/dmic.c

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner SPDIF Support

[sndspdif]
sndspdif_used = 0
[spdif]
spdif_used = 0

spdif配置 spdif配置说明|
spdif_used 是否使用spdif驱动。 0 ：不使用； 1 ：使用|

sndspdif配置sndspdif配置说明

linux-4.9/sound/soc/sunxi/spdif-utils.c

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Mad Support

[mad]
mad_used = 1
lpsd_clk_src_cfg = 0
standby_sram_io_type = 1

mad使能,绑定mad到daudio中
amixer -Dhw:sndac1081003b cset name='daudio bind mad Function' 1
设置通道 0 作为唤醒通道
amixer -Dhw:sndac1081003b cset name='lpsd channel sel Function' 0
设定mad standby时,录音的通道数
amixer -Dhw:sndac1081003b cset name='mad_standby channel sel Function' 2

amixer -Dhw:snddmic cset name='dmic bind mad Function' 1
amixer -Dhw:snddmic cset name='lpsd channel sel Function' 0
amixer -Dhw:snddmic cset name='mad_standby channel sel Function' 0

Allwinner --->
    <*> mad-demo

ADC RxFiFo ---> I2S TxFiFo ---> I2S RxFiFo ---> MAD SRAM ---> MEM

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
[*] Allwinner I2S PCM DMA MAP Support
<*> Allwinner Mad Support
<*> Allwinner Sun8iw18 Codec Support
<*> Allwinner Digital Audio Support

[mad]
mad_used = 1
lpsd_clk_src_cfg = 0
standby_sram_io_type = 1

amixer -Dhw:audiocodec cset name='codec I2S Port' 2
amixer -Dhw:audiocodec cset name='sndcodec bind mad Function' 1
amixer -Dhw:audiocodec cset name='lpsd channel sel Function' 0
amixer -Dhw:audiocodec cset name='mad_standby channel sel Function' 0

vad需要使用一路i2s,这里指定使用i2s1
amixer -Dhw:audiocodec cset name='codec I2S Port' 2
使能mad,绑定mad到audiocodec中
amixer -Dhw:audiocodec cset name='sndcodec bind mad Function' 1
设置通道 0 作为唤醒通道
amixer -Dhw:audiocodec cset name='lpsd channel sel Function' 0

Allwinner --->
    <*> mad-demo

通过Speaker播放
amixer -D hw:audiocodec cset name='External Speaker Switch' 1
amixer -D hw:audiocodec cset name='Right LINEOUT Mux' 1
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

通过MIC1,MIC2录制两通道
amixer -D hw:audiocodec cset name='Left Input Mixer MIC1 Boost Switch' 1
amixer -D hw:audiocodec cset name='Right Input Mixer MIC2 Boost Switch' 1
amixer -D hw:audiocodec cset name='MIC1 boost volume' 4
amixer -D hw:audiocodec cset name='MIC2 boost volume' 4
arecord -Dhw:audiocodec -f S16_LE -r 16000 -c 2 /tmp/test.wav

linux-4.9/sound/soc/sunxi_v2/
├── snd_sun8iw21_codec.c // codec驱动
├── snd_sun8iw21_codec.h
├── snd_sunxi_aaudio.c
├── snd_sunxi_common.c
├── snd_sunxi_common.h
├── snd_sunxi_daudio.c //daudio platform驱动
├── snd_sunxi_daudio.h
├── snd_sunxi_dmic.c // dmic platform驱动
├── snd_sunxi_dmic.h
├── snd_sunxi_log.h
├── snd_sunxi_mach.c
├── snd_sunxi_mach.h
├── snd_sunxi_mach_utils.c
├── snd_sunxi_mach_utils.h
├── snd_sunxi_pcm.c
├── snd_sunxi_pcm.h
├── snd_sunxi_rxsync.c
├── snd_sunxi_rxsync.h
├── snd_sunxi_txhub.c
└── snd_sunxi_txhub.h

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support V2 --->
<*> Allwinner AAUDIO support
<*> Allwinner DAUDIO Support
<*> Allwinner Function Components
<*> Components Rx Sync

codec:codec@0x02030000 {
#sound-dai-cells = <0>;
compatible = "allwinner,sunxi-snd-codec";
reg = <0x0 0x02030000 0x0 0x34C>;
clocks = <&clk_pll_audio>,

<&clk_codec_dac>,
<&clk_codec_adc>;
status = "disabled";
};
codec_plat:codec_plat {
#sound-dai-cells = <0>;
compatible = "allwinner,sunxi-snd-aaudio";
playback_cma = <128>;
capture_cma = <128>;
tx_fifo_size = <128>;
rx_fifo_size = <128>;
dac_txdata = <0x02030020>;
adc_txdata = <0x02030040>;
status = "disabled";
};
codec_mach:codec_mach {
compatible = "allwinner,sunxi-snd-mach";
soundcard-mach,name = "audiocodec";
soundcard-mach,pin-switches = "MIC1", "MIC2", "LINEIN",
"LINEOUT", "SPK";
soundcard-mach,routing = "MIC1_PIN", "MIC1",
"MIC2_PIN", "MIC2",
"LINEINL_PIN", "LINEIN",
"LINEINR_PIN", "LINEIN",
"LINEOUT", "LINEOUTL_PIN",
"SPK", "LINEOUTL_PIN";
status = "disabled";
soundcard-mach,cpu {
/* pll freq = 24.576M or 22.5792M * pll-fs */
soundcard-mach,pll-fs = <1>;
sound-dai = <&codec_plat>;
};
soundcard-mach,codec {
sound-dai = <&codec>;
};
};

&codec {
/* external-avcc; */
/* avcc-supply = <&reg_aldo1>; */
avcc-vol = <1800000>; /* uv */
lineout_vol = <31>;
mic1gain = <31>;
mic2gain = <31>;

adcdelaytime = <0>;
/* lineout-single; */
/* mic1-single; */
/* mic2-single; */
pa_pin_max = <1>; /* set pa */
pa_pin_0 = <&pio PH 4 1 1 1 1>;
pa_pin_level_0 = <1>;
pa_pin_msleep_0 = <0>;
tx_hub_en;
rx_sync_en;
status = "okay";
};
&codec_plat {
status = "okay";
};
&codec_mach {
status = "okay";
soundcard-mach,cpu {
sound-dai = <&codec_plat>;
};
soundcard-mach,codec {
sound-dai = <&codec>;
};
};

通过Lineout播歌
Playback --> DACL --> LINEOUTL Output Select --> LINEOUTL --> LINEOUT
Playback --> DACR --> LINEOUTR Output Select --> LINEOUTR --> LINEOUT
录音
MIC1 --> MIC1 Input Select --> ADC1 Input --> ADC1 --> Capture
MIC2 --> MIC2 Input Select --> ADC2 Input --> ADC2 --> Capture
LINE-in录音
LINEINL --> ADC1 Input --> ADC1 --> Capture
LINEINR --> ADC2 Input --> ADC2 --> Capture

Device Drivers --->
    <*> Sound card support --->
        <*> Advanced Linux Sound Architecture --->
            <*> ALSA for SoC audio support --->
                Allwinner SoC Audio support V2 --->
                <*> Allwinner AAUDIO support
                <*> Allwinner DAUDIO Support
                <*> Allwinner Function Components
                <*> Components Rx Sync

daudio0_plat:daudio0_plat@0x02032000 {
#sound-dai-cells = <0>;
compatible = "allwinner,sunxi-snd-plat-daudio";
reg = <0x0 0x02032000 0x0 0x7c>;
clocks = <&clk_pll_audio>, <&clk_i2s0>;
playback_cma = <128>;
capture_cma = <128>;
tx_fifo_size = <128>;
rx_fifo_size = <128>;
status = "disabled";
};
daudio0_mach:daudio0_mach{
compatible = "allwinner,sunxi-snd-mach";
soundcard-mach,format = "i2s";
soundcard-mach,name = "snddaudio0";

status = "disabled";
soundcard-mach,cpu {
sound-dai = <&daudio0_plat>;
};
soundcard-mach,codec {
};
};
daudio1_plat:daudio1_plat@0x02033000 {
#sound-dai-cells = <0>;
compatible = "allwinner,sunxi-snd-plat-daudio";
reg = <0x0 0x02033000 0x0 0x7c>;
clocks = <&clk_pll_audio>, <&clk_i2s1>;
playback_cma = <128>;
capture_cma = <128>;
tx_fifo_size = <128>;
rx_fifo_size = <128>;
status = "disabled";
};
daudio1_mach:daudio1_mach{
compatible = "allwinner,sunxi-snd-mach";
soundcard-mach,format = "i2s";
soundcard-mach,name = "snddaudio1";
status = "disabled";
soundcard-mach,cpu {
sound-dai = <&daudio1_plat>;
};
soundcard-mach,codec {
};
};

&daudio0_plat {
tdm_num = <0>;
tx_pin = <0>;
rx_pin = <0>;
/* pinctrl_used; */
/* pinctrl-names= "default","sleep"; */
/* pinctrl-0 = <&daudio0_pins_a>; */
/* pinctrl-1 = <&daudio0_pins_b>; */
tx_hub_en;
rx_sync_en;
status = "okay";
};
&daudio0_mach {
soundcard-mach,format = "i2s";
soundcard-mach,frame-master = <&daudio0_cpu>;
soundcard-mach,bitclock-master = <&daudio0_cpu>;
/* soundcard-mach,frame-inversion; */
/* soundcard-mach,bitclock-inversion; */
soundcard-mach,slot-num = <2>;
soundcard-mach,slot-width = <32>;
status = "okay";
daudio0_cpu: soundcard-mach,cpu {
sound-dai = <&daudio0_plat>;
soundcard-mach,pll-fs = <1>; /* pll freq = 24.576M or 22.5792M * pll-fs */
soundcard-mach,mclk-fs = <0>; /* mclk freq = pcm rate * mclk-fs */
};
daudio0_codec: soundcard-mach,codec {

};
};
&daudio1_plat {
tdm_num = <1>;
tx_pin = <0>;
rx_pin = <0>;
/* pinctrl_used; */
/* pinctrl-names= "default","sleep"; */
/* pinctrl-0 = <&daudio1_pins_a>; */
/* pinctrl-1 = <&daudio1_pins_b>; */
tx_hub_en;
rx_sync_en;
status = "disabled";
};
&daudio1_mach {
soundcard-mach,format = "i2s";
soundcard-mach,frame-master = <&daudio1_cpu>;
soundcard-mach,bitclock-master = <&daudio1_cpu>;
/* soundcard-mach,frame-inversion; */
/* soundcard-mach,bitclock-inversion; */
soundcard-mach,slot-num = <2>;
soundcard-mach,slot-width = <32>;
status = "disabled";
daudio1_cpu: soundcard-mach,cpu {
sound-dai = <&daudio1_plat>;
soundcard-mach,pll-fs = <1>; /* pll freq = 24.576M or 22.5792M * pll-fs */
soundcard-mach,mclk-fs = <0>; /* mclk freq = pcm rate * mclk-fs */
};
daudio1_codec: soundcard-mach,codec {
};
};

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support V2 --->
<*> Allwinner DMIC support

dmic_plat:dmic_plat@0x02031000 {
#sound-dai-cells = <0>;
compatible = "allwinner,sunxi-snd-plat-dmic";

reg = <0x0 0x02031000 0x0 0x50>;
clocks = <&clk_pll_audio>, <&clk_dmic>;
capture_cma = <128>;
rx_fifo_size = <128>;
status = "disabled";
};
dmic_mach:dmic_mach{
compatible = "allwinner,sunxi-snd-mach";
soundcard-mach,name = "snddmic";
soundcard-mach,capture_only;
status = "disabled";
soundcard-mach,cpu {
sound-dai = <&dmic_plat>;
};
soundcard-mach,codec {
};
};

&dmic_plat {
    rx_chmap = <0x76543210>;
    data_vol = <0xB0>;
    rxdelaytime = <0>;
    pinctrl_used;
    pinctrl-names = "default","sleep";
    pinctrl-0 = <&dmic_pins_a>;
    pinctrl-1 = <&dmic_pins_b>;
    rx_sync_en;
    status = "disabled";
};
&dmic_mach {
    status = "disabled";
    soundcard-mach,cpu {
        sound-dai = <&dmic_plat>;
        soundcard-mach,pll-fs = <1>; /* pll freq = 24.576M or 22.5792M * pll-fs */
    };
    soundcard-mach,codec {
    };
};

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support V2 --->
<*> Allwinner AAUDIO support
<*> Allwinner DAUDIO Support
<*> Allwinner Function Components
<*> Components Rx Sync

codec:codec@2030000 {
    rx_sync_en = <0x01>;
};
dmic:dmic@2031000 {
    rx_sync_en = <0x01>;
};
daudio0:daudio@2032000 {
    rx_sync_en = <0x01>;
};

通过LINEOUT->Speaker播放
amixer -Dhw:audiocodec cset name='LINEOUTL Output Select' 1
amixer -Dhw:audiocodec cset name='LINEOUTR Output Select' 1
amixer -Dhw:audiocodec cset name='LINEOUT Switch' 1
amixer -D hw:audiocodec cset name='LINEOUT volume' 15
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav
或者利用默认/etc/asound.conf配置的pcm设备进行播放：
aplay -Ddefault /mnt/UDISK/1KHz_0dB_16000.wav
通过Headphone播放
amixer -D hw:audiocodec cset name='Headphone Switch' 1
amixer -D hw:audiocodec cset name='Headphone volume' 3
aplay -Dhw:audiocodec /mnt/UDISK/1KHz_0dB_16000.wav

通过内部的MIC1,MIC2录制双通道
amixer -D hw:audiocodec cset name='MIC1 Input Select' 0
amixer -D hw:audiocodec cset name='MIC2 Input Select' 0
amixer -D hw:audiocodec cset name='MIC1 Switch' 1
amixer -D hw:audiocodec cset name='MIC2 Switch' 1
amixer -D hw:audiocodec cset name='MIC1 gain volume' 19
amixer -D hw:audiocodec cset name='MIC2 gain volume' 19
arecord -Dhw:audiocodec -f S16_LE -r 16000 -c 2 /tmp/test.wav

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Sun20iw1 Codec Support
<*> Allwinner Audio Simple Card
[ ] Allwinner RX SYNC Support

&codec {
/* MIC and headphone gain setting */
mic1gain = <0x1F>;
mic2gain = <0x1F>;
mic3gain = <0x1F>;
/* ADC/DAC DRC/HPF func enabled */
¦ /* 0x1:DAP_HP_EN; 0x2:DAP_SPK_EN; 0x3:DAP_HPSPK_EN */
adcdrc_cfg = <0x0>;
adchpf_cfg = <0x1>;
dacdrc_cfg = <0x0>;
dachpf_cfg = <0x0>;
/* Volume about */
digital_vol = <0x00>;
lineout_vol = <0x1a>;
headphonegain = <0x03>;
/* Pa enabled about */
pa_level = <0x01>;
pa_pwr_level = <0x01>;
pa_msleep_time = <0x78>;
/* gpio-spk = <&pio PF 2 GPIO_ACTIVE_HIGH>;*/
/* gpio-spk-pwr = <&pio PF 4 GPIO_ACTIVE_HIGH>; */
/* CMA config about */
playback_cma = <128>;
capture_cma = <256>;
/* regulator about */
/* avcc-supply = <&reg_aldo1>; */
/* hpvcc-supply = <&reg_eldo1>; */
status = "okay";
};

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Audio Simple Card
<*> Allwinner Digital Audio Support
[ ] Allwinner RX SYNC Support

&daudio1 {
mclk_div = <0x01>;
frametype = <0x00>;
tdm_config = <0x01>;
sign_extend = <0x00>;
msb_lsb_first = <0x00>;
pcm_lrck_period = <0x80>;
slot_width_select = <0x20>;
pinctrl-names = "default", "sleep";

pinctrl-0 = <&daudio1_pins_a>;
pinctrl-1 = <&daudio1_pins_b>;
pinctrl_used = <0x0>;
status = "disabled";
};
&sounddaudio1 {
status = "disabled";
daudio1_master: simple-audio-card,codec {
/* sound-dai = <&ac108>; */
};
};

daudio1:daudio@2033000 {
#sound-dai-cells = <0>;
compatible = "allwinner,sunxi-daudio";
reg = <0x0 0x02033000 0x0 0xa0>;
clocks = <&ccu CLK_PLL_AUDIO0>,
¦<&ccu CLK_I2S1>,
¦<&ccu CLK_BUS_I2S1>;
clock-names = "pll_audio", "i2s1", "i2s1_bus";
resets = <&ccu RST_BUS_I2S1>;
dmas = <&dma 4>, <&dma 4>;
dma-names = "tx", "rx";
interrupts-extended = <&plic0 43 IRQ_TYPE_LEVEL_HIGH>;
sign_extend = <0x00>;
tx_data_mode = <0x00>;
rx_data_mode = <0x00>;
msb_lsb_first = <0x00>;
pcm_lrck_period = <0x80>;
slot_width_select = <0x20>;
frametype = <0x00>;
tdm_config = <0x01>;
tdm_num = <0x01>;
mclk_div = <0x00>;
clk_parent = <0x01>;
capture_cma = <128>;
playback_cma = <128>;
tx_num = <4>;
tx_chmap1 = <0x76543210>;
tx_chmap0 = <0xFEDCBA98>;
rx_num = <4>;
rx_chmap3 = <0x03020100>;
rx_chmap2 = <0x07060504>;
rx_chmap1 = <0x0B0A0908>;
rx_chmap0 = <0x0F0E0D0C>;
asrc_function_en = <0x00>;
rx_sync_en = <0x00>;
device_type = "daudio1";
status = "disabled";
};
sounddaudio1: sounddaudio1@20330a0 {
reg = <0x0 0x020330a0 0x0 0x4>;
compatible = "sunxi,simple-audio-card";
simple-audio-card,name = "snddaudio1";
simple-audio-card,format = "i2s";
status = "disabled";
simple-audio-card,cpu {
sound-dai = <&daudio1>;
};
};

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Audio Simple Card
<*> Allwinner DMIC Support
[ ] Allwinner RX SYNC Support

&dmic {
pinctrl-names = "default","sleep";
pinctrl-0 = <&dmic_pins_a>;
pinctrl-1 = <&dmic_pins_b>;
rx_sync_en = <0x00>;
status = "okay";
};
&dmic_codec {
status = "okay";
};
&sounddmic {
status = "okay";
};

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> ALSA for SoC audio support --->
Allwinner SoC Audio support --->
<*> Allwinner Audio Simple Card
<*> Allwinner SPDIF Support
[ ] Allwinner RX SYNC Support

&spdif {
pinctrl-names = "default","sleep";
pinctrl-0 = <&spdif_pins_a>;
pinctrl-1 = <&spdif_pins_b>;

rx_sync_en = <0x00>;
status = "okay";
};
&soundspdif {
status = "okay";
};

通过Headphone播放
1.开机后推送测试音频48000.wav到小机端,pc命令：adb push 48000.wav /tmp/
2.播放该音频文件, aplay /tmp/48000.wav

mic:
1.使能mic3通路：amixer set "ADC3 Input MIC3 Boost" on
2.设置mic3增益：amixer cset name="MIC3 gain volume" 31
3.录音5s：arecord -D hw:audiocodec -f S16_LE -r 44100 -c 1 /tmp/test.wav --period-size 1024
--buffer-size 4096 -d 5
linein:
1.使能linein通路：amixer set "ADC1 Input LINEINL" on;amixer set "ADC2 Input LINEINR" on
2.设置linein增益：amixer cset name="LINEINL gain volume" 1;amixer cset name="LINEINR gain
volume" 1
3.录音5s：arecord -D hw:audiocodec -f S16_LE -r 44100 -c 2 /tmp/test.wav --period-size 1024
--buffer-size 4096 -d 5
fmin:
1.使能fmin通路：amixer set "ADC1 Input FMINL" on;amixer set "ADC2 Input FMINR" on
2.设置fmin增益：amixer cset name="FMINL gain volume" 1;amixer cset name="FMINR gain volume" 1
3.录音5s：arecord -D hw:audiocodec -f S16_LE -r 44100 -c 2 /tmp/test.wav --period-size 1024
--buffer-size 4096 -d 5
I2S:
1.推送音频文件到小机端:adb push 16000.wav /tmp/16000.wav