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1 /*
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2 * I2c_Codec.h
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3 *
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4 * Handle writing the registers to the TLV320AIC310x
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5 * series audio codecs, used on the BeagleBone Audio Cape.
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6 * This code is designed to bypass the ALSA driver and
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7 * configure the codec directly in a sensible way. It
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8 * is complemented by code running on the PRU which uses
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9 * the McASP serial port to transfer audio data.
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10 *
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11 * Created on: May 25, 2014
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12 * Author: Andrew McPherson
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13 */
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14
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15
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16 #ifndef I2CCODEC_H_
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17 #define I2CCODEC_H_
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18
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19 #include "I2c.h"
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20
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21
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22 class I2c_Codec : public I2c
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23 {
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giuliomoro@134
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24 short unsigned int pllJ;
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giuliomoro@134
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25 short unsigned int pllD;
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giuliomoro@142
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26 short unsigned int pllP;
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27 short unsigned int pllR;
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28 public:
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29 int writeRegister(unsigned int reg, unsigned int value);
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30
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31 int initCodec();
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32 int startAudio(int dual_rate);
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33 int stopAudio();
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34
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giuliomoro@96
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35 int setPllJ(short unsigned int j);
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giuliomoro@96
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36 int setPllD(unsigned int d);
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giuliomoro@142
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37 int setPllP(short unsigned int p);
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giuliomoro@142
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38 int setPllR(unsigned int r);
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giuliomoro@96
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39 int setPllK(float k);
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40 int setAudioSamplingRate(float newSamplingRate);
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giuliomoro@134
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41 short unsigned int getPllJ();
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giuliomoro@134
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42 unsigned int getPllD();
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43 unsigned int getPllP();
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44 unsigned int getPllR();
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45 float getPllK();
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46 float getAudioSamplingRate();
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47 int setDACVolume(int halfDbSteps);
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48 int writeDACVolumeRegisters(bool mute);
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49 int setADCVolume(int halfDbSteps);
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50 int writeADCVolumeRegisters(bool mute);
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51 int setHPVolume(int halfDbSteps);
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52 int writeHPVolumeRegisters();
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53
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54 int readI2C();
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55
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56 I2c_Codec();
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57 ~I2c_Codec();
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58
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59 private:
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60 bool running;
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61 int dacVolumeHalfDbs;
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62 int adcVolumeHalfDbs;
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63 int hpVolumeHalfDbs;
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64 };
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65
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66
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67 #endif /* I2CCODEC_H_ */
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