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>;      //耳机检测脚
          io-channels = <&saradc 3>;     //耳机adc检测通道
          io-channel-names = "adc-detect";
          keyup-threshold-microvolt = <1800000>;    //耳机检测参考电压
          poll-interval = <100>;        
          spk-con-gpio = <&gpio1 RK_PD3 GPIO_ACTIVE_HIGH>;    //喇叭控制GPIO
          hp-con-gpio = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;     //耳机控制GPIO
          rockchip,format = "i2s";
          rockchip,mclk-fs = <256>;
          rockchip,cpu = <&i2s0_8ch>;          //与RK3588进行数据通信的i2s通道
          rockchip,codec = <&es8388>;
          rockchip,audio-routing =            //配置声音通路
              "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 {             //配置耳机按键
              label = "playpause";
              linux,code = <KEY_PLAYPAUSE>;
              press-threshold-microvolt = <2000>;
          };
      };
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• ES8388设备驱动配置

  &i2c7 {              //ES8388挂在i2c7上面
      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>;
      };
  };
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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 push C:\adb\test.wav data
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• RK Android 播放音乐 ( RK Android SDK 标配 tiny-alsa 工具 ):

  adb shell
  tinyplay /data/test.wav -D 0 -d 0
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• RK Android 录音：

  tinycap /sdcard/test.wav 
  
  播放录音
  tinyplay /sdcard/test.wav -D 0 -d 0
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• RK Linux 播放音乐 （ RK Linux SDK 标配 alsa-utils 工具 ）

   aplay  test.wav
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  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
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  或者

  aplay -D plughw:CARD=rockchipes8388 test.wav
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• 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
  
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