WM8741-Arduino/WM8741.h at master · sosandroid/WM8741-Arduino · GitHub

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/*
Arduino library for Wolfson Microelectronics WM8741 using I2C bus.
Done to manage PCM data using I2S bus
Do not manage DSD or 8FS

Version 1.0 Aug 2012
Version 1.0.1 March 2015


Tested on Arduino Mega 2560
Uses Arduino 1.0.1 IDE

/!\ Use an I2C level converter as WM8741 supports 3.3v only on the bus - example part http://dsscircuits.com/i2c-level-converter.html
*/


#ifndef WM8741_H
#define WM8741_H

#include <Arduino.h>
#include <wire.h>

/*
WM8741 Class
*/

class WM8741 {
    public:
        WM8741(bool monomode, char unsigned VolMax, char unsigned VolMin, char unsigned VolCurr);
        void		SetupStereoMode();
	    void		SetupMonoMode();
	    void		setReg (uint8_t ChipAddress, uint8_t RegAddress, uint8_t RegValue);
	    void		SetVolume(int unsigned volume, bool changeMute);
	    void		SetFilter(int filter);
	    void		NextFilter();
	    void		PrevFilter();
	    void		VolumeUp();
	    void		VolumeDown();
	    void		Mute();
	    void		ZeroSound();
	    void		SoftReset();
	    uint8_t		getReg(uint8_t ChipAddress, uint8_t RegAddress);
	    void		CheckMuteStatus();
		bool		isMuted();
	    //Todo : add mute status feedback, current volume feedback
};

#endif