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LibrePilot/flight/modules/ManualControl/pathfollowerhandler.c

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2014-03-02 14:45:17 +01:00
/**
******************************************************************************
* @addtogroup OpenPilotModules OpenPilot Modules
* @{
* @addtogroup ManualControl
* @brief Interpretes the control input in ManualControlCommand
* @{
*
* @file pathfollowerhandler.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2014.
*
* @see The GNU Public License (GPL) Version 3
*
******************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "inc/manualcontrol.h"
#include <pathdesired.h>
#include <manualcontrolcommand.h>
#include <flightstatus.h>
#include <positionstate.h>
#include <flightmodesettings.h>
#if defined(REVOLUTION)
// Private constants
// Private types
// Private functions
/**
* @brief Handler to control Guided flightmodes. FlightControl is governed by PathFollower, control via PathDesired
* @input: NONE: fully automated mode -- TODO recursively call handler for advanced stick commands
* @output: PathDesired
*/
void pathFollowerHandler(bool newinit)
{
if (newinit) {
PathDesiredInitialize();
PositionStateInitialize();
}
FlightStatusData flightStatus;
FlightStatusGet(&flightStatus);
if (newinit) {
// After not being in this mode for a while init at current height
PositionStateData positionState;
PositionStateGet(&positionState);
FlightModeSettingsData settings;
FlightModeSettingsGet(&settings);
PathDesiredData pathDesired;
PathDesiredGet(&pathDesired);
switch (flightStatus.FlightMode) {
case FLIGHTSTATUS_FLIGHTMODE_RETURNTOBASE:
// Simple Return To Base mode - keep altitude the same, fly to home position
pathDesired.Start.North = 0;
pathDesired.Start.East = 0;
pathDesired.Start.Down = positionState.Down - settings.ReturnToHomeAltitudeOffset;
pathDesired.End.North = 0;
pathDesired.End.East = 0;
pathDesired.End.Down = positionState.Down - settings.ReturnToHomeAltitudeOffset;
pathDesired.StartingVelocity = 1;
pathDesired.EndingVelocity = 0;
pathDesired.Mode = PATHDESIRED_MODE_FLYENDPOINT;
break;
default:
pathDesired.Start.North = positionState.North;
pathDesired.Start.East = positionState.East;
pathDesired.Start.Down = positionState.Down;
pathDesired.End.North = positionState.North;
pathDesired.End.East = positionState.East;
pathDesired.End.Down = positionState.Down;
pathDesired.StartingVelocity = 1;
pathDesired.EndingVelocity = 0;
pathDesired.Mode = PATHDESIRED_MODE_FLYENDPOINT;
/* Disable this section, until such time as proper discussion can be had about how to implement it for all types of crafts.
} else {
PathDesiredData pathDesired;
PathDesiredGet(&pathDesired);
pathDesired.End[PATHDESIRED_END_NORTH] += dT * -cmd->Pitch;
pathDesired.End[PATHDESIRED_END_EAST] += dT * cmd->Roll;
pathDesired.Mode = PATHDESIRED_MODE_FLYENDPOINT;
PathDesiredSet(&pathDesired);
*/
break;
}
PathDesiredSet(&pathDesired);
}
// special handling of autoland - behaves like positon hold but with slow altitude decrease
if (flightStatus.FlightMode == FLIGHTSTATUS_FLIGHTMODE_LAND) {
PositionStateData positionState;
PositionStateGet(&positionState);
PathDesiredData pathDesired;
PathDesiredGet(&pathDesired);
pathDesired.End.Down = positionState.Down + 5;
PathDesiredSet(&pathDesired);
}
}
#else /* if defined(REVOLUTION) */
void pathFollowerHandler(__attribute__((unused)) bool newinit)
{
AlarmsSet(SYSTEMALARMS_ALARM_MANUALCONTROL, SYSTEMALARMS_ALARM_CRITICAL); // should not be called
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}
#endif // REVOLUTION
/**
* @}
* @}
*/