//======================================================================
// config.h
//======================================================================

#ifndef __iop_config_h__
#define __iop_config_h__

// Uncomment to use the "factory" calibration mode.  This is intended to
// allow calibration of IOP settings, separately from the uBITX/Raduino.
// There will be no pass-thru of any CAT.
#define FACTORY_CALIBRATION

// IOPConfig
// Used to store configuration parameters during runtime, as well as to
// save them to EEPROM.
struct IOPConfig {

  // RECEIVE PARAMETERS

  // rig-in parameters (RX)
  uint8_t rxRigInLevel   = 5;
  float   rxRigInVol     = 0.7;
  float   rxRigInCal     = 1.0;
  // USB-in parameters (RX) - debug/monitor use only
  bool    rxUSBInEnable  = false;
  float   rxUSBInVol     = 1.0;
  float   rxUSBInCal     = 1.0;
  // speaker-out (DAC) parameters (RX)
  float   rxSpkrOutCal   = 1.0;
  // line-out parameters (RX)
  uint8_t rxLineOutLevel = 29;
  float   rxLineOutCal   = 1.0;
  // USB-out parameters (RX)
  float   rxUSBOutCal    = 1.0;

  // TRANSMIT PARAMETERS

  // NOTE: Default rig-out parameters are based on trying to hit a 25mVrms output to the
  // rig.  This is based on some discussion at the following URL:
  //
  // https://groups.io/g/BITX20/message/58951
  // 
  // This may or may not be totally applicable.  I believe it was for IMD/spurs on a pre-V5
  // version of the uBITX.  So it may be OBE for my V5.  It also alludes to modifications
  // to the transmit audio chain, which may be something I need to look into (i.e. increasing
  // the gain on the initial mic pre-amp).
  //
  // Specifically, for the rig-out parameters:
  //    line out level 31 = 1.16 V p-p
  //                      = 0.58 V peak
  //                      = 0.41 V rms = 410 mV rms
  //    so output calibration needs to reduce that to 17.5 mV rms (70% of 25 mV rms)  
  //           txMicInCal = 0.043 ... seems pretty low...
  //
  // Likewise, default line-in (TX) parameters assume consumer line level
  // input, but with the default audio adaptor line-in level setting (5 = 1.33V p-p).
  //    line in level 5 = 1.33 V p-p
  //          signal in = 0.894 V p-p
  //                    = 0.447 V peak
  //                    = 0.316 V rms = 316 mV rms
  //    so input calibration needs to convert that to the 410 mV noted above (equivalent
  //    for the microphone), so that when that signal gets to the rig-out, it gets 
  //    treated the same as the mic input.
  //        txLineInCal = 1.30

  // microphone-in parameters (TX)
  uint8_t txMicInGain    = 12;
  float   txMicInVol     = 0.7;
  float   txMicInCal     = 1.0;
  // line-in parameters (TX)
  uint8_t txLineInLevel  = 5;
  float   txLineInVol    = 0.7;
  float   txLineInCal    = 1.30;
  // USB-in parameters (TX)
  float   txUSBInVol     = 0.7;
  float   txUSBInCal     = 1.0;
  // rig-out parameters (TX) - default settings are based on hitting 70% of 25mVrms w/ mic
  uint8_t txRigOutLevel  = 31;
  float   txRigOutCal    = 0.043;
  // USB-out parameters (TX)- debug/monitor use only
  bool    txUSBOutEnable = true;
  float   txUSBOutCal    = 1.0; 
};

extern IOPConfig iopConfig;

#endif

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