#pragma once
//
//    FILE: M62429.h
//  AUTHOR: Rob Tillaart
// PURPOSE: Arduino library for M62429 volume control IC
// VERSION: 0.2.2
//
// HISTORY: See M62429.cpp
//     URL: https://github.com/RobTillaart/M62429


#include "Arduino.h"


#define M62429_VERSION          (F("0.2.2"))


// minimum pulswidth CLOCK = 1.6 us (datasheet);
// digitalWrite takes enough time on UNO / AVR so clock_delay == 0
// Note that if clock pulses are long enough the data pulses are too.
#ifndef M62429_CLOCK_DELAY
#ifdef __AVR__
#define M62429_CLOCK_DELAY       0
#else
#define M62429_CLOCK_DELAY       2
#endif
#endif


// ERROR CODES
#define M62429_MUTED            -1
#define M62429_CHANNEL_ERROR    -10


class M62429
{
public:

  void begin(uint8_t dataPin, uint8_t clockPin);

  // channel = { 0, 1 }
  int     getVolume(uint8_t channel);
  // channel = { 0, 1, 2 = both; volume = {0 .. 255 }
  int     setVolume(uint8_t channel, uint8_t volume);
  // increment /decrement until max/min
  void    incr();
  void    decr();
  void    average();

  void    muteOn();
  void    muteOff();
  bool    isMuted()  { return _muted; };

private:
  uint8_t _vol[2] = { 0, 0 };
  uint8_t _data   = 0;
  uint8_t _clock  = 0;
  bool    _muted  = false;

  void    _setVolume(uint8_t channel, uint8_t volume);
};


// -- END OF FILE --