Mercurial > hg > beaglert
annotate include/I2c_Codec.h @ 39:638bc1ae2500 staging
Improved readibility of the DIGITAL code in the PRU, using register names instead of aliases and expanding some of the macros, removing unused macros. Binaries were not modified
| author | Giulio Moro <giuliomoro@yahoo.it> |
|---|---|
| date | Wed, 13 May 2015 12:18:10 +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_ */ |