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annotate include/I2c_Codec.h @ 41:4255ecbb9bec ultra-staging

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Timers to measure performances, ultra experimental
author Giulio Moro <giuliomoro@yahoo.it>
date Tue, 19 May 2015 16:41:07 +0100
parents 8a575ba3ab52
children ef9392d077a4
rev   line source
andrewm@0 1 /*
andrewm@0 2 * I2c_Codec.h
andrewm@0 3 *
andrewm@0 4 * Handle writing the registers to the TLV320AIC310x
andrewm@0 5 * series audio codecs, used on the BeagleBone Audio Cape.
andrewm@0 6 * This code is designed to bypass the ALSA driver and
andrewm@0 7 * configure the codec directly in a sensible way. It
andrewm@0 8 * is complemented by code running on the PRU which uses
andrewm@0 9 * the McASP serial port to transfer audio data.
andrewm@0 10 *
andrewm@0 11 * Created on: May 25, 2014
andrewm@0 12 * Author: Andrew McPherson
andrewm@0 13 */
andrewm@0 14
andrewm@0 15
andrewm@0 16 #ifndef I2CCODEC_H_
andrewm@0 17 #define I2CCODEC_H_
andrewm@0 18
andrewm@0 19 #include "I2c.h"
andrewm@0 20
andrewm@0 21
andrewm@0 22 class I2c_Codec : public I2c
andrewm@0 23 {
andrewm@0 24 public:
andrewm@0 25 int writeRegister(unsigned int reg, unsigned int value);
andrewm@0 26
andrewm@0 27 int initCodec();
andrewm@0 28 int startAudio(int dual_rate);
andrewm@0 29 int stopAudio();
andrewm@0 30
andrewm@0 31 int setDACVolume(int halfDbSteps);
andrewm@0 32 int writeDACVolumeRegisters(bool mute);
andrewm@0 33 int setADCVolume(int halfDbSteps);
andrewm@0 34 int writeADCVolumeRegisters(bool mute);
andrewm@0 35 int setHPVolume(int halfDbSteps);
andrewm@0 36 int writeHPVolumeRegisters();
andrewm@0 37
andrewm@0 38 int readI2C();
andrewm@0 39
andrewm@0 40 I2c_Codec();
andrewm@0 41 ~I2c_Codec();
andrewm@0 42
andrewm@0 43 private:
andrewm@0 44 bool running;
andrewm@0 45 int dacVolumeHalfDbs;
andrewm@0 46 int adcVolumeHalfDbs;
andrewm@0 47 int hpVolumeHalfDbs;
andrewm@0 48 };
andrewm@0 49
andrewm@0 50
andrewm@0 51 #endif /* I2CCODEC_H_ */