andrewm@0: /*
andrewm@0:  * I2c_Codec.h
andrewm@0:  *
andrewm@0:  * Handle writing the registers to the TLV320AIC310x
andrewm@0:  * series audio codecs, used on the BeagleBone Audio Cape.
andrewm@0:  * This code is designed to bypass the ALSA driver and
andrewm@0:  * configure the codec directly in a sensible way. It
andrewm@0:  * is complemented by code running on the PRU which uses
andrewm@0:  * the McASP serial port to transfer audio data.
andrewm@0:  *
andrewm@0:  *  Created on: May 25, 2014
andrewm@0:  *      Author: Andrew McPherson
andrewm@0:  */
andrewm@0: 
andrewm@0: 
andrewm@0: #ifndef I2CCODEC_H_
andrewm@0: #define I2CCODEC_H_
andrewm@0: 
andrewm@0: #include "I2c.h"
andrewm@0: 
andrewm@0: 
andrewm@0: class I2c_Codec : public I2c
andrewm@0: {
giuliomoro@134: 	short unsigned int pllJ;
giuliomoro@134: 	short unsigned int pllD;
giuliomoro@142: 	short unsigned int pllP;
giuliomoro@142: 	short unsigned int pllR;
giuliomoro@142: 	short unsigned int anotherField;
andrewm@0: public:
andrewm@0: 	int writeRegister(unsigned int reg, unsigned int value);
andrewm@0: 
andrewm@0: 	int initCodec();
andrewm@0: 	int startAudio(int dual_rate);
andrewm@0: 	int stopAudio();
andrewm@0: 
giuliomoro@96: 	int setPllJ(short unsigned int j);
giuliomoro@96: 	int setPllD(unsigned int d);
giuliomoro@142: 	int setPllP(short unsigned int p);
giuliomoro@142: 	int setPllR(unsigned int r);
giuliomoro@96: 	int setPllK(float k);
giuliomoro@134: 	int setAudioSamplingRate(float newSamplingRate);
giuliomoro@134: 	short unsigned int getPllJ();
giuliomoro@134: 	unsigned int getPllD();
giuliomoro@142: 	unsigned int getPllP();
giuliomoro@142: 	unsigned int getPllR();
giuliomoro@134: 	float getPllK();
giuliomoro@134: 	float getAudioSamplingRate();
andrewm@0: 	int setDACVolume(int halfDbSteps);
andrewm@0: 	int writeDACVolumeRegisters(bool mute);
andrewm@0: 	int setADCVolume(int halfDbSteps);
andrewm@0: 	int writeADCVolumeRegisters(bool mute);
andrewm@0: 	int setHPVolume(int halfDbSteps);
andrewm@0: 	int writeHPVolumeRegisters();
andrewm@0: 
andrewm@0: 	int readI2C();
andrewm@0: 
andrewm@0: 	I2c_Codec();
andrewm@0: 	~I2c_Codec();
andrewm@0: 
andrewm@0: private:
andrewm@0: 	bool running;
andrewm@0: 	int dacVolumeHalfDbs;
andrewm@0: 	int adcVolumeHalfDbs;
andrewm@0: 	int hpVolumeHalfDbs;
andrewm@0: };
andrewm@0: 
andrewm@0: 
andrewm@0: #endif /* I2CCODEC_H_ */