I2c_Codec.h

/*
 * I2c_Codec.h
 *
 * Handle writing the registers to the TLV320AIC310x
 * series audio codecs, used on the BeagleBone Audio Cape.
 * This code is designed to bypass the ALSA driver and
 * configure the codec directly in a sensible way. It
 * is complemented by code running on the PRU which uses
 * the McASP serial port to transfer audio data.
 *
 *  Created on: May 25, 2014
 *      Author: Andrew McPherson
 */


#ifndef I2CCODEC_H_
#define I2CCODEC_H_

#include "I2c.h"


class I2c_Codec : public I2c
{
        short unsigned int pllJ;
        short unsigned int pllD;
        short unsigned int pllP;
        short unsigned int pllR;
public:
        int writeRegister(unsigned int reg, unsigned int value);

        int initCodec();
        int startAudio(int dual_rate);
        int stopAudio();

        int setPllJ(short unsigned int j);
        int setPllD(unsigned int d);
        int setPllP(short unsigned int p);
        int setPllR(unsigned int r);
        int setPllK(float k);
        int setAudioSamplingRate(float newSamplingRate);
        short unsigned int getPllJ();
        unsigned int getPllD();
        unsigned int getPllP();
        unsigned int getPllR();
        float getPllK();
        float getAudioSamplingRate();
        int setPga(float newGain, unsigned short int channel);
        int setDACVolume(int halfDbSteps);
        int writeDACVolumeRegisters(bool mute);
        int setADCVolume(int halfDbSteps);
        int writeADCVolumeRegisters(bool mute);
        int setHPVolume(int halfDbSteps);
        int writeHPVolumeRegisters();

        int readI2C();

        I2c_Codec();
        ~I2c_Codec();

private:
        bool running;
        int dacVolumeHalfDbs;
        int adcVolumeHalfDbs;
        int hpVolumeHalfDbs;
};


#endif /* I2CCODEC_H_ */