UAS.cc

/*=====================================================================

PIXHAWK Micro Air Vehicle Flying Robotics Toolkit

(c) 2009, 2010 PIXHAWK PROJECT  <http://pixhawk.ethz.ch>

This file is part of the PIXHAWK project

    PIXHAWK 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.

    PIXHAWK 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 PIXHAWK. If not, see <http://www.gnu.org/licenses/>.

======================================================================*/

/**
 * @file
 *   @brief Represents one unmanned aerial vehicle
 *
 *   @author Lorenz Meier <mavteam@student.ethz.ch>
 *
 */

#include <QList>
#include <QMessageBox>
#include <QTimer>
#include <iostream>
#include <QDebug>
#include <cmath>
#include "UAS.h"
#include "LinkInterface.h"
#include "UASManager.h"
#include "MG.h"
#include "GAudioOutput.h"
#include "MAVLinkProtocol.h"
#include <mavlink.h>

UAS::UAS(MAVLinkProtocol* protocol, int id) :
        uasId(id),
        startTime(MG::TIME::getGroundTimeNow()),
        commStatus(COMM_DISCONNECTED),
        name(""),
        links(new QList<LinkInterface*>()),
        unknownPackets(),
        mavlink(protocol),
        thrustSum(0),
        thrustMax(10),
        startVoltage(0),
        currentVoltage(12.0f),
        lpVoltage(12.0f),
        mode(MAV_MODE_UNINIT),
        status(MAV_STATE_UNINIT),
        onboardTimeOffset(0),
        controlRollManual(true),
        controlPitchManual(true),
        controlYawManual(true),
        controlThrustManual(true),
        manualRollAngle(0),
        manualPitchAngle(0),
        manualYawAngle(0),
        manualThrust(0),
        receiveDropRate(0),
        sendDropRate(0),
        lowBattAlarm(false),
        positionLock(false),
        statusTimeout(new QTimer(this))
{
    setBattery(LIPOLY, 3);
    statusTimeout->setInterval(500);
    connect(statusTimeout, SIGNAL(timeout()), this, SLOT(updateState()));
}

UAS::~UAS()
{
    delete links;
}

int UAS::getUASID() const
{
    return uasId;
}

void UAS::updateState()
{
    // Position lock is set by the MAVLink message handler
    // if no position lock is available, indicate an error
    if (positionLock)
    {
        positionLock = false;
    }
    else
    {
        if (mode > MAV_MODE_LOCKED && positionLock)
        {
            GAudioOutput::instance()->notifyNegative();
        }
    }
}

void UAS::setSelected()
{
    UASManager::instance()->setActiveUAS(this);
}

void UAS::receiveMessage(LinkInterface* link, mavlink_message_t message)
{
    if (!links->contains(link))
    {
        addLink(link);
    }

    if (message.sysid == uasId)
    {
        QString uasState;
        QString stateDescription;
        QString patternPath;
        switch (message.msgid)
        {
        case MAVLINK_MSG_ID_HEARTBEAT:
            emit heartbeat(this);
            // Set new type if it has changed
            if (this->type != mavlink_msg_heartbeat_get_type(&message))
            {
                this->type = mavlink_msg_heartbeat_get_type(&message);
                emit systemTypeSet(this, type);
            }
            break;
        case MAVLINK_MSG_ID_BOOT:
            getStatusForCode((int)MAV_STATE_BOOT, uasState, stateDescription);
            emit statusChanged(this, uasState, stateDescription);
            onboardTimeOffset = 0; // Reset offset measurement
            break;
        case MAVLINK_MSG_ID_SYS_STATUS:
            {
                mavlink_sys_status_t state;
                mavlink_msg_sys_status_decode(&message, &state);

                // FIXME
                //qDebug() << "SYSTEM NAV MODE:" << state.nav_mode;

                QString audiostring = "System " + QString::number(this->getUASID());
                QString stateAudio = "";
                QString modeAudio = "";
                bool statechanged = false;
                bool modechanged = false;

                if (state.status != this->status)
                {
                    statechanged = true;
                    this->status = state.status;
                    getStatusForCode((int)state.status, uasState, stateDescription);
                    emit statusChanged(this, uasState, stateDescription);
                    stateAudio = " changed status to " + uasState;
                }

                if (static_cast<unsigned int>(this->mode) != static_cast<unsigned int>(state.mode))
                {
                    modechanged = true;
                    this->mode = state.mode;
                    QString mode;

                    switch ((unsigned int)(state.mode))
                    {
                    case MAV_MODE_LOCKED:
                        mode = "LOCKED MODE";
                        break;
                    case MAV_MODE_MANUAL:
                        mode = "MANUAL MODE";
                        break;
                    case MAV_MODE_AUTO:
                        mode = "AUTO MODE";
                        break;
                    case MAV_MODE_GUIDED:
                        mode = "GUIDED MODE";
                        break;
                    case MAV_MODE_READY:
                        mode = "READY";
                        break;
                    case MAV_MODE_TEST1:
                        mode = "TEST1 MODE";
                        break;
                    case MAV_MODE_TEST2:
                        mode = "TEST2 MODE";
                        break;
                    case MAV_MODE_TEST3:
                        mode = "TEST3 MODE";
                        break;
                    default:
                        mode = "UNINIT MODE";
                        break;
                    }