rk3588调试es8388语音编解码IC小结

embedded/2024/10/22 7:57:12/

本次调试es8388语音编解码IC，按照以下思路（如果出现内核崩溃的问题，建议可以同步下rk原厂代码）：

1、dts的配置

  &i2c7 {  //i2c总线确认status = "okay";pinctrl-names = "default";pinctrl-0 = <&i2c7m0_xfer>;  //总线IO要配置对es8388: es8388@11 {status = "okay";#sound-dai-cells = <0>;compatible = "everest,es8388", "everest,es8323";reg = <0x11>;clocks = <&cru I2S0_8CH_MCLKOUT>;clock-names = "mclk";//               sda-gpios = <&gpio1 RK_PD1 GPIO_ACTIVE_HIGH>;//               scl-gpios = <&gpio1 RK_PD0 GPIO_ACTIVE_HIGH>;assigned-clocks = <&cru I2S0_8CH_MCLKOUT>;assigned-clock-rates = <12288000>;pinctrl-names = "default";pinctrl-0 = <&i2s0_mclk>;};};

es8388_sound: es8388-sound {status = "okay";compatible = "rockchip,multicodecs-card";rockchip,card-name = "rockchip,es8388";hp-det-gpio = <&gpio1 2 1>;spk-con-gpio = <&gpio1 3 0>;hp-con-gpio = <&gpio0 8 0>;rockchip,format = "i2s";rockchip,mclk-fs = <256>;rockchip,cpu = <&i2s0_8ch>;rockchip,codec = <&es8388>;rockchip,audio-routing ="Headphone", "LOUT1","Headphone", "ROUT1","Speaker", "LOUT2","Speaker", "ROUT2","Headphone", "Headphone Power","Headphone", "Headphone Power","Speaker", "Speaker Power","Speaker", "Speaker Power","LINPUT1", "Main Mic","LINPUT2", "Main Mic","RINPUT1", "Headset Mic","RINPUT2", "Headset Mic";pinctrl-names = "default";pinctrl-0 = <&hp_det>;};

 &i2s0_8ch {  status = "okay";pinctrl-0 = <&i2s0_lrck  //I2S0的pin的配置，注意使用哪个就添加哪个，注意IO不要跟其他配置冲突&i2s0_sclk&i2s0_sdi0&i2s0_sdo0>;
};

2 确认i2s0打开，对应的GPIO没有复用，可以通过以下命令确认（硬件原理方面对应原理图确认）：

cat /sys/kernel/debug/pinctrl/pinctrl-rockchip-pinctrl/pinmux-pins
cat /sys/kernel/debug/gpio 
以及查找dts编译后的文件确认：.rk3588-evb3-lp5-v10-linux.dtb.dts.tmp

3、验证过程：

查看声卡设备：
root@VC-RK3588:/# cat /proc/asound/cards
0 [rockchipes8388 ]: rockchip_es8388 - rockchip,es8388
rockchip,es8388
root@VC-RK3588:/#

1、安装工具
① apt-get update
② apt install ffmpeg
③ apt install alsa-utils

ffmpeg -f alsa -i hw:0,0 out.wav //录音
aplay -D hw:0,0 out.wav //放音

如果播放单声道音频文件（mono）要加plug：
aplay -D plughw:0,0 zangyuquli.wav

hw:0,0 声卡0和设备0的确定，使用 aplay -l 查看：
root@VC-RK3588:/# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: rockchipes8388 [rockchip,es8388], device 0: dailink-multicodecs ES8323.7-0011-0 [dailink-multicodecs ES8323.7-0011-0]
Subdevices: 1/1
Subdevice #0: subdevice #0

从上面可以看出我的audio设备是：
card 0: rockchipes8388 [rockchip,es8388], device 0: dailink-multicodecs ES8323.7-0011-0 [dailink-multicodecs ES8323.7-0011-0]
Subdevices: 1/1
Subdevice #0: subdevice #0

声卡id为0（因为是card 0），设备id为0（device 0），所以aplay -D plughw:0,0 xxx.wav 即可。