//======================================================================
// audio.h
//======================================================================

#ifndef __iop_audio_h__
#define __iop_audio_h__

#include <Audio.h>
#include "config.h"

enum RxInput {
  RX_RIG_IN = 0,
  RX_USB_IN = 1,
};

enum RxOutput {
  RX_SPEAKER_OUT = 0,
  RX_LINE_OUT = 1,
  RX_USB_OUT = 2,
};

enum TxInput {
  TX_MIC_IN = -1,
  TX_LINE_IN = 0,
  TX_USB_IN = 1,
  TX_TEST_IN = 2,
};

enum TxOutput {
  TX_RIG_OUT = 0,
  TX_USB_OUT = 1,
};

//======================================================================

class BPFilter {
  
  public:
  
  BPFilter(double f1, double f2, bool use_center, short int window, short int coeff);
  void setFreqLo(double f);
  void setFreqHi(double f);
  void setBand(double f1, double f2);
  void setCenter(double c);
  void setWidth(double w);
  void setCenterAndWidth(double c, double w);
  void update(AudioFilterFIR* filter, short* coefficients);

  private:
  
  double _freq_lo;
  double _freq_hi;
  short int _window;
  short int _coeff;
  float _recovery;          // recovery amplifier value

  static AudioFilterFIR* _filter; // = &filterRX;
  static short _coefficients[];
};

//======================================================================

void audioInit();
void audioSelectTxInput(TxInput);
void audioTransmit();
void audioReceive();
void audioCalibrate(IOPConfig *, char, char, char, float, bool);

#endif

//======================================================================
// EOF
//======================================================================