コード例 #1
0
ファイル: Volkslogger.cpp プロジェクト: Plantain/XCSoar
// RMN: Volkslogger
// Source data:
// $PGCS,1,0EC0,FFF9,0C6E,02*61
// $PGCS,1,0EC0,FFFA,0C6E,03*18
static bool
vl_PGCS1(NMEAInputLine &line, NMEA_INFO *GPS_INFO, bool enable_baro)
{
  GPS_STATE &gps = GPS_INFO->gps;

  if (line.read(1) != 1)
    return false;

  /* pressure sensor */
  line.skip();

  // four characers, hex, barometric altitude
  long altitude = line.read_hex(0L);

  if (enable_baro) {
    if (altitude > 60000)
      /* Assuming that altitude has wrapped around.  60 000 m occurs
         at QNH ~2000 hPa */
      altitude -= 65535;

    GPS_INFO->BaroAltitude =
      GPS_INFO->pressure.AltitudeToQNHAltitude(fixed(altitude));

    GPS_INFO->BaroAltitudeAvailable = true;
  }

  // ExtractParameter(String,ctemp,3);
  // four characters, hex, constant.  Value 1371 (dec)

  // nSatellites = (int)(min(12,HexStrToDouble(ctemp, NULL)));

  if (gps.SatellitesUsed <= 0) {
    gps.SatellitesUsed = 4;
    // just to make XCSoar quit complaining.  VL doesn't tell how many
    // satellites it uses.  Without this XCSoar won't do wind
    // measurements.
  }

  return false;
}
コード例 #2
0
ファイル: Parser.cpp プロジェクト: aharrison24/XCSoar
static bool
PDSWC(NMEAInputLine &line, NMEAInfo &info)
{
  static long last_switchinputs;
  static long last_switchoutputs;

  fixed value;
  if (line.read_checked(value))
    info.settings.ProvideMacCready(value / 10, info.clock);

  long switchinputs = line.read_hex(0L);
  long switchoutputs = line.read_hex(0L);

  if (line.read_checked(value)) {
    info.voltage = value / 10;
    info.voltage_available.Update(info.clock);
  }

  info.switch_state_available = true;

  info.switch_state.airbrake_locked =
    (switchinputs & (1<<INPUT_BIT_AIRBRAKELOCKED))>0;
  info.switch_state.flap_positive =
    (switchinputs & (1<<INPUT_BIT_FLAP_POS))>0;
  info.switch_state.flap_neutral =
    (switchinputs & (1<<INPUT_BIT_FLAP_ZERO))>0;
  info.switch_state.flap_negative =
    (switchinputs & (1<<INPUT_BIT_FLAP_NEG))>0;
  info.switch_state.gear_extended =
    (switchinputs & (1<<INPUT_BIT_GEAR_EXTENDED))>0;
  info.switch_state.acknowledge =
    (switchinputs & (1<<INPUT_BIT_ACK))>0;
  info.switch_state.repeat =
    (switchinputs & (1<<INPUT_BIT_REP))>0;
  info.switch_state.speed_command =
    (switchinputs & (1<<INPUT_BIT_SC))>0;
  info.switch_state.user_switch_up =
    (switchinputs & (1<<INPUT_BIT_USERSWUP))>0;
  info.switch_state.user_switch_middle =
    (switchinputs & (1<<INPUT_BIT_USERSWMIDDLE))>0;
  info.switch_state.user_switch_down =
    (switchinputs & (1<<INPUT_BIT_USERSWDOWN))>0;
  /*
  info.switch_state.Stall =
    (switchinputs & (1<<INPUT_BIT_STALL))>0;
  */
  info.switch_state.flight_mode =
    (switchoutputs & (1 << OUTPUT_BIT_CIRCLING)) > 0
    ? SwitchInfo::FlightMode::CIRCLING
    : SwitchInfo::FlightMode::CRUISE;
  info.switch_state.flap_landing =
    (switchoutputs & (1<<OUTPUT_BIT_FLAP_LANDING))>0;

  long up_switchinputs;
  long down_switchinputs;
  long up_switchoutputs;
  long down_switchoutputs;

  // detect changes to ON: on now (x) and not on before (!lastx)
  // detect changes to OFF: off now (!x) and on before (lastx)

  down_switchinputs = (switchinputs & (~last_switchinputs));
  up_switchinputs = ((~switchinputs) & (last_switchinputs));
  down_switchoutputs = (switchoutputs & (~last_switchoutputs));
  up_switchoutputs = ((~switchoutputs) & (last_switchoutputs));

  int i;
  long thebit;
  for (i=0; i<32; i++) {
    thebit = 1<<i;
    if ((down_switchinputs & thebit) == thebit) {
      InputEvents::processNmea(i);
    }
    if ((down_switchoutputs & thebit) == thebit) {
      InputEvents::processNmea(i+32);
    }
    if ((up_switchinputs & thebit) == thebit) {
      InputEvents::processNmea(i+64);
    }
    if ((up_switchoutputs & thebit) == thebit) {
      InputEvents::processNmea(i+96);
    }
  }

  last_switchinputs = switchinputs;
  last_switchoutputs = switchoutputs;

  return true;
}