调试音频分为软件调试和驱动调试。
验证Andorid13 音频耳机输出的时候，用apk播放一个音频，发现耳机只有右耳机有输出，左耳机没有声音。根据调试经验，一般来说是驱动问题。
先试用tinyplay播放耳机，使用tinyplay，需要先tinymix切换到耳机通路：
rk3588_t:/ # tinymix
Mixer name: 'rockchip-es8316'
Number of controls: 42
ctl type num name value
0 ENUM 1 I2STDM Digital Loopback Mode Disabled
1 INT 2 Headphone Playback Volume 3 3
2 INT 2 Headphone Mixer Volume 0 0
3 ENUM 1 Playback Polarity Normal
4 INT 2 DAC Playback Volume 192 192
5 BOOL 1 DAC Soft Ramp Switch Off
6 INT 1 DAC Soft Ramp Rate 4
7 BOOL 1 DAC Notch Filter Switch Off
8 BOOL 1 DAC Double Fs Switch Off
9 INT 1 DAC Stereo Enhancement 0
10 BOOL 1 DAC Mono Mix Switch Off
11 ENUM 1 Capture Polarity Normal
12 BOOL 1 Mic Boost Switch On
13 INT 1 ADC Capture Volume 0
14 INT 1 ADC PGA Gain Volume 0
15 BOOL 1 ADC Soft Ramp Switch On
16 BOOL 1 ADC Double Fs Switch Off
17 BOOL 1 ALC Capture Switch On
18 INT 1 ALC Capture Max Volume 13
19 INT 1 ALC Capture Min Volume 8
20 INT 1 ALC Capture Target Volume 10
21 INT 1 ALC Capture Hold Time 0
22 INT 1 ALC Capture Decay Time 3
23 INT 1 ALC Capture Attack Time 2
24 BOOL 1 ALC Capture Noise Gate Switch Off
25 INT 1 ALC Capture Noise Gate Threshold 0
26 ENUM 1 ALC Capture Noise Gate Type Constant PGA Gain
27 BOOL 1 Headphone Jack On
28 BOOL 1 Headset Mic Jack Off
29 BOOL 1 Headphone Switch On
30 BOOL 1 Speaker Switch On
31 BOOL 1 Main Mic Switch On
32 BOOL 1 Headset Mic Switch Off
33 ENUM 1 Differential Mux lin1-rin1
34 ENUM 1 Digital Mic Mux dmic disable
35 ENUM 1 DAC Source Mux LDATA TO LDAC, RDATA TO RDAC
36 ENUM 1 Left Headphone Mux lin1-rin1
37 ENUM 1 Right Headphone Mux lin1-rin1
38 BOOL 1 Left Headphone Mixer LLIN Switch Off
39 BOOL 1 Left Headphone Mixer Left DAC Switch Off
40 BOOL 1 Right Headphone Mixer RLIN Switch Off
41 BOOL 1 Right Headphone Mixer Right DAC Switch Off查找音频hal层代码codec config, hardware/rockchip/audio/tinyalsa_hal/codec_config. 在es8316_config.h中切换耳机输出描述：
const struct config_control es8316_headphone_normal_controls[] = {
{
.ctl_name = "DAC Playback Volume",
.int_val = {192, 192},
},
{
.ctl_name = "Left Headphone Mixer Left DAC Switch",
.int_val = {on},
},
{
.ctl_name = "Right Headphone Mixer Right DAC Switch",
.int_val = {on},
},
};然后根据上述配置使用tinymix切换到耳机通路：
tinymix 4 192 192
tinymix 39 1
tinymix 41 1然后使用tinyplay播放es8316声卡，测试耳机输出：
tinyplay data/48000_2channel.wav -D 0 -d 0 -n 3 -p 480这时候听到耳机也是只有右耳机有输出，在确认耳机没问题的情况下。确认对比android 12的时候codec是正常的，对比两个版本的播放时的codec寄存器。
/d/regmap/7-0010 # cat registers // es8316挂在到i2c7总线上对比寄存器如下不同：
对比差寄存器值，修改codec代码对配置寄存器。
diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c
old mode 100644
new mode 100755
index 609459077f9d..2aa290a2e46d
--- a/sound/soc/codecs/es8316.c
+++ b/sound/soc/codecs/es8316.c
@@ -744,6 +744,15 @@ static int es8316_probe(struct snd_soc_component *component)
*/
snd_soc_component_write(component, ES8316_CLKMGR_ADCOSR, 0x32);
+ snd_soc_component_write(component, ES8316_CAL_HPLIV, 0x87);
+ snd_soc_component_write(component, ES8316_CAL_HPRIV, 0x8c);
+ snd_soc_component_write(component, ES8316_CAL_HPLMV, 0x00);
+ snd_soc_component_write(component, ES8316_CAL_HPRMV, 0xff);
+ //snd_soc_component_write(component, ES8316_SYS_PDN, 0x07);
+ snd_soc_component_write(component, ES8316_ADC_ALC1, 0xcd);
+ snd_soc_component_write(component, ES8316_ADC_ALC2, 0x08);
+ snd_soc_component_write(component, ES8316_ADC_ALC3, 0xa0);
+ es8316_enable_micbias_for_mic_gnd_short_detect(component);
return 0;
}
修改后，两个版本codec播放时的寄存器配置一致。发现android 13还是耳机输出有问题。怀疑是板子问题了，换了一块板子烧写就好了。
如果是Linux版本使用alsa utils工具amixer切换route:
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root@linaro-alip:/# amixer -c 0 contents
numid=28,iface=CARD,name='Headphone Jack'
; type=BOOLEAN,access=r-------,values=1
: values=on
numid=29,iface=CARD,name='Headset Mic Jack'
; type=BOOLEAN,access=r-------,values=1
: values=off
numid=3,iface=MIXER,name='Headphone Mixer Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=11,step=0
: values=0,0
| dBrange-
rangemin=0,,rangemax=4
| dBscale-min=-12.00dB,step=1.50dB,mute=0
rangemin=8,,rangemax=11
| dBscale-min=-4.50dB,step=1.50dB,mute=0
numid=30,iface=MIXER,name='Headphone Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=2,iface=MIXER,name='Headphone Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=3,step=0
: values=3,3
| dBrange-
rangemin=0,,rangemax=0
| dBscale-min=-48.00dB,step=0.00dB,mute=0
rangemin=1,,rangemax=3
| dBscale-min=-24.00dB,step=12.00dB,mute=0
numid=13,iface=MIXER,name='Mic Boost Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=17,iface=MIXER,name='ADC Double Fs Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=15,iface=MIXER,name='ADC PGA Gain Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=10,step=0
: values=0
| dBrange-
rangemin=0,,rangemax=0
| dBscale-min=-3.50dB,step=0.00dB,mute=0
rangemin=1,,rangemax=1
| dBscale-min=0.00dB,step=0.00dB,mute=0
rangemin=2,,rangemax=2
| dBscale-min=2.50dB,step=0.00dB,mute=0
rangemin=3,,rangemax=3
| dBscale-min=4.50dB,step=0.00dB,mute=0
rangemin=4,,rangemax=7
| dBscale-min=7.00dB,step=3.00dB,mute=0
rangemin=8,,rangemax=10
| dBscale-min=18.00dB,step=3.00dB,mute=0
numid=16,iface=MIXER,name='ADC Soft Ramp Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=14,iface=MIXER,name='ADC Capture Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=192,step=0
: values=0
| dBscale-min=-96.00dB,step=0.50dB,mute=1
numid=12,iface=MIXER,name='Capture Polarity'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Normal'
; Item #1 'Invert'
: values=0
numid=4,iface=MIXER,name='Playback Polarity'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'Normal'
; Item #1 'R Invert'
; Item #2 'L Invert'
; Item #3 'L + R Invert'
: values=0
numid=1,iface=MIXER,name='I2STDM Digital Loopback Mode'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'Disabled'
; Item #1 'Mode1'
; Item #2 'Mode2'
; Item #3 'Mode2 Swap'
: values=0
numid=24,iface=MIXER,name='ALC Capture Attack Time'
; type=INTEGER,access=rw------,values=1,min=0,max=10,step=0
: values=2
numid=23,iface=MIXER,name='ALC Capture Decay Time'
; type=INTEGER,access=rw------,values=1,min=0,max=10,step=0
: values=3
numid=22,iface=MIXER,name='ALC Capture Hold Time'
; type=INTEGER,access=rw------,values=1,min=0,max=10,step=0
: values=0
numid=19,iface=MIXER,name='ALC Capture Max Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=28,step=0
: values=13
| dBscale-min=-6.50dB,step=1.50dB,mute=0
numid=20,iface=MIXER,name='ALC Capture Min Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=28,step=0
: values=8
| dBscale-min=-12.00dB,step=1.50dB,mute=0
numid=25,iface=MIXER,name='ALC Capture Noise Gate Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=26,iface=MIXER,name='ALC Capture Noise Gate Threshold'
; type=INTEGER,access=rw------,values=1,min=0,max=31,step=0
: values=0
numid=27,iface=MIXER,name='ALC Capture Noise Gate Type'
; type=ENUMERATED,access=rw------,values=1,items=2
; Item #0 'Constant PGA Gain'
; Item #1 'Mute ADC Output'
: values=0
numid=18,iface=MIXER,name='ALC Capture Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=21,iface=MIXER,name='ALC Capture Target Volume'
; type=INTEGER,access=rw---R--,values=1,min=0,max=10,step=0
: values=10
| dBscale-min=-16.50dB,step=1.50dB,mute=0
numid=9,iface=MIXER,name='DAC Double Fs Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=11,iface=MIXER,name='DAC Mono Mix Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=8,iface=MIXER,name='DAC Notch Filter Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=5,iface=MIXER,name='DAC Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=192,step=0
: values=152,152
| dBscale-min=-96.00dB,step=0.50dB,mute=1
numid=7,iface=MIXER,name='DAC Soft Ramp Rate'
; type=INTEGER,access=rw------,values=1,min=0,max=4,step=0
: values=4
numid=6,iface=MIXER,name='DAC Soft Ramp Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=36,iface=MIXER,name='DAC Source Mux'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'LDATA TO LDAC, RDATA TO RDAC'
; Item #1 'LDATA TO LDAC, LDATA TO RDAC'
; Item #2 'RDATA TO LDAC, RDATA TO RDAC'
; Item #3 'RDATA TO LDAC, LDATA TO RDAC'
: values=0
numid=10,iface=MIXER,name='DAC Stereo Enhancement'
; type=INTEGER,access=rw------,values=1,min=0,max=7,step=0
: values=0
numid=34,iface=MIXER,name='Differential Mux'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'lin1-rin1'
; Item #1 'lin2-rin2'
; Item #2 'lin1-rin1 with 20db Boost'
; Item #3 'lin2-rin2 with 20db Boost'
: values=0
numid=35,iface=MIXER,name='Digital Mic Mux'
; type=ENUMERATED,access=rw------,values=1,items=3
; Item #0 'dmic disable'
; Item #1 'dmic data at high level'
; Item #2 'dmic data at low level'
: values=0
numid=33,iface=MIXER,name='Headset Mic Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=39,iface=MIXER,name='Left Headphone Mixer LLIN Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=40,iface=MIXER,name='Left Headphone Mixer Left DAC Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=37,iface=MIXER,name='Left Headphone Mux'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'lin1-rin1'
; Item #1 'lin2-rin2'
; Item #2 'lin-rin with Boost'
; Item #3 'lin-rin with Boost and PGA'
: values=0
numid=32,iface=MIXER,name='Main Mic Switch'
; type=BOOLEAN,access=rw------,values=1
: values=on
numid=41,iface=MIXER,name='Right Headphone Mixer RLIN Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=42,iface=MIXER,name='Right Headphone Mixer Right DAC Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
numid=38,iface=MIXER,name='Right Headphone Mux'
; type=ENUMERATED,access=rw------,values=1,items=4
; Item #0 'lin1-rin1'
; Item #1 'lin2-rin2'
; Item #2 'lin-rin with Boost'
; Item #3 'lin-rin with Boost and PGA'
: values=0
numid=31,iface=MIXER,name='Speaker Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off对比上面tinymix主要修改ctl如下：
numid=5,iface=MIXER,name='DAC Playback Volume'
; type=INTEGER,access=rw---R--,values=2,min=0,max=192,step=0
: values=152,152
| dBscale-min=-96.00dB,step=0.50dB,mute=1
.....
numid=40,iface=MIXER,name='Left Headphone Mixer Left DAC Switch'
; type=BOOLEAN,access=rw------,values=1
: values=off
......
numid=42,iface=MIXER,name='Right Headphone Mixer Right DAC Switch'
; type=BOOLEAN,access=rw------,values=1
: values=offamixer修改如下：
amixer -c 0 contents
amixer -c 0 cset numid=5 192 192
amixer -c 0 cset numid=40 1
amixer -c 0 cset numid=42 1
amixer -c 0 cset numid=2 3
amixer -c 0 cset numid=31 13588 linux的codec寄存器命令：
cat /sys/kernel/debug/regmap/7-0010/registers
寄存器一致后，还是无声，对比linux 参考dts：rk3588-evb3-lp5.dtsi：
&i2c7 {
status = "okay";
es8316: es8316@10 {
status = "okay";
#sound-dai-cells = <0>;
compatible = "everest,es8316";
reg = <0x10>;
clocks = <&mclkout_i2s0>; //linux版本
clock-names = "mclk";
assigned-clocks = <&mclkout_i2s0>;
assigned-clock-rates = <12288000>;
pinctrl-names = "default";
pinctrl-0 = <&i2s0_mclk>;
};
};而android版本：
es8316: es8316@10 {
status = "okay";
#sound-dai-cells = <0>;
compatible = "everest,es8316";
reg = <0x10>;
clocks = <&cru I2S0_8CH_MCLKOUT>; // android版本
clock-names = "mclk";
assigned-clocks = <&cru I2S0_8CH_MCLKOUT>;
assigned-clock-rates = <12288000>;
pinctrl-names = "default";
pinctrl-0 = <&i2s0_mclk>;
};修改后，aplay播放有声音了。
aplay -D hw:0,0 sdcard/48000_2channel.wav