structuring code

soundcube-i2s-test/codec-registers.h

@@ -0,0 +1,110 @@
+#pragma once
+
+#ifndef DEBUG
+#define DEBUG false
+#endif
+
+struct CodecSettings{
+  CodecSettings(uint8_t i2c_address, TwoWire *wire) : wire(wire), i2cAddress(i2c_address) {}
+  TwoWire *wire;
+
+  uint8_t i2cAddress = 0x18;
+  uint8_t page;
+  uint8_t reg;
+  uint8_t len;
+
+  virtual uint8_t get() = 0;
+
+  void write(){
+    selectPage(page);
+    cw(reg, get());
+  }
+
+  void read(uint8_t result[]){
+    selectPage(page);
+    cr(reg, result, len);
+  }
+
+  void selectPage(int page){
+    cw(0x00, page);
+  }
+
+  void cw(unsigned char first, unsigned char second){
+    Wire1.beginTransmission(i2cAddress);
+    Wire1.write(first);
+    Wire1.write(second);
+    int result = Wire1.endTransmission();
+    if(DEBUG){
+      Serial.print(i2cAddress, HEX);
+      Serial.print(" ");
+      Serial.print(first, HEX);
+      Serial.print(" ");
+      Serial.print(second, HEX);
+      Serial.print(" : ");
+      if(result == 0) {
+        Serial.println("OK");
+      } else {
+        Serial.print("ERROR: ");
+        Serial.println(result);
+      }
+    }
+    delay(5);
+  }
+
+  void cr(unsigned char first, uint8_t result[], size_t len){
+    Wire1.beginTransmission(i2cAddress);  
+    Wire1.write(first);  // set register for read
+    Wire1.endTransmission(false); // false to not release the line
+
+    Wire1.requestFrom(i2cAddress, len, true);
+
+    Wire1.readBytes(result, len);
+
+    if(DEBUG){
+      Serial.print(first, HEX);
+      Serial.print(" ");
+
+      for (int i = 0; i < len; i++) {
+        Serial.print(result[i], HEX);
+        Serial.print(" ");
+        Serial.println(result[i], BIN);
+      }
+    }
+  }
+};
+
+struct ClockSettings1 : public CodecSettings{
+  ClockSettings1(uint8_t i2c_address, TwoWire *wire) : CodecSettings(i2c_address, wire) {}
+
+  uint8_t page = 0x00;
+  uint8_t reg = 0x04;
+  uint8_t len = 1;
+
+  enum PLLRange{
+    PLL_HIGH = 0b01000000,
+    PLL_LOW = 0b00000000
+  };
+
+  enum PLLInputClock{
+    PLL_IN_MCLK = 0b00000000,
+    PLL_IN_BCLK = 0b00000100,
+    PLL_IN_GPIO = 0b00001000,
+    PLL_IN_DIN  = 0b00001100
+  };
+
+  enum CodecInputClock{
+    CODEC_IN_MCLK = 0b00000000,
+    CODEC_IN_BCLK = 0b00000001,
+    CODEC_IN_GPIO = 0b00000010,
+    CODEC_IN_PLL  = 0b00000011
+  };
+
+  PLLRange pll_range = PLL_LOW;
+  PLLInputClock pll_input_clock = PLL_IN_MCLK;
+  CodecInputClock codec_input_clock = CODEC_IN_MCLK;
+
+  uint8_t get(){
+    return pll_range | pll_input_clock | codec_input_clock;
+  }
+};
+