RK3588-ES8388音频调试笔记

1. 简介

• 本文是基于RK3588平台，音频芯片ES8388调试总结。
• 外接声卡：ES8388

2. 音频ES8388调试

2.1 调试总览，调试步骤分析

• 步骤 ① dts配置
• 步骤 ② 编译烧写，调试

2.2 dts配置

• 系统声音配置：

  es8388_sound: es8388-sound {
        
        
          status = "okay";
          compatible = "rockchip,multicodecs-card";
          rockchip,card-name = "rockchip-es8388";
          hp-det-gpio = <&gpio1 RK_PD5 GPIO_ACTIVE_LOW>;
          io-channels = <&saradc 3>;
          io-channel-names = "adc-detect";
          keyup-threshold-microvolt = <1800000>;
          poll-interval = <100>;
          spk-con-gpio = <&gpio1 RK_PD3 GPIO_ACTIVE_HIGH>;
          hp-con-gpio = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;
          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>;
          play-pause-key {
        
        
              label = "playpause";
              linux,code = <KEY_PLAYPAUSE>;
              press-threshold-microvolt = <2000>;
          };
      };
  

• ES8388设备驱动配置

  &i2c7 {
        
        
      status = "okay";
      es8388: es8388@11 {
        
        
          status = "okay";
          #sound-dai-cells = <0>;
          compatible = "everest,es8388", "everest,es8323";
          reg = <0x11>;
          clocks = <&cru I2S0_8CH_MCLKOUT>;
          clock-names = "mclk";
          assigned-clocks = <&cru I2S0_8CH_MCLKOUT>;
          assigned-clock-rates = <12288000>;
          pinctrl-names = "default";
          pinctrl-0 = <&i2s0_mclk>;
      };
  };
  

2.3 编译烧写，调试

• 查看声卡命令：cat /proc/asound/cards
  

• 将wav文件拷贝到板子上：

  adb root
  adb remount
  adb push C:\adb\test.wav mnt
  

• RK Android 播放音乐 ( RK Android SDK 标配 tiny-alsa 工具 ):

  adb shell
  cd /mnt
  tinyplay ./test.wav -D 0 -d 0
  

• RK Android 录音：

  tinycap /sdcard/test.wav 
  
  播放录音
  cd /sdcard
  tinyplay ./test.wav -D 0 -d 0
  

• RK Linux 播放音乐 （ RK Linux SDK 标配 alsa-utils 工具 ）

   aplay  test.wav
  

  或者

  aplay -Dplughw:0,0 test.wav
  
  aplay -Dplughw:1,0 test.wav
  
  aplay -Dplughw:2,0 test.wav
  
  -Dplughw:x  表示指定第几个声卡
  

  或者

  aplay -D plughw:CARD=rockchipes8388 test.wav
  

• RK Linux 录音

  arecord -D hw:1,0 -d 10 -f cd -r 44100 -c 2 -t wav test.wav
  
  -d 10表示录制10秒声音，test.wav是保存的文件名称
  
  -D hw:x  表示指定第几个声卡
  
  -r 指定采样率，-f 指定每个采样点的位数--样本大小