FirmwarePlugin.h 8.93 KB
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/*=====================================================================
 
 QGroundControl Open Source Ground Control Station
 
 (c) 2009 - 2014 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 
 This file is part of the QGROUNDCONTROL project
 
 QGROUNDCONTROL 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.
 
 QGROUNDCONTROL 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 QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
 
 ======================================================================*/

/// @file
///     @author Don Gagne <don@thegagnes.com>

#ifndef FirmwarePlugin_H
#define FirmwarePlugin_H

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#include "QGCMAVLink.h"
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#include "VehicleComponent.h"
#include "AutoPilotPlugin.h"

#include <QList>
#include <QString>

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class Vehicle;

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/// This is the base class for Firmware specific plugins
///
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/// The FirmwarePlugin class represents the methods and objects which are specific to a certain Firmware flight stack.
/// This is the only place where flight stack specific code should reside in QGroundControl. The remainder of the
/// QGroundControl source is generic to a common mavlink implementation. The implementation in the base class supports
/// mavlink generic firmware. Override the base clase virtuals to create your own firmware specific plugin.
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class FirmwarePlugin : public QObject
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{
    Q_OBJECT

public:
    /// Set of optional capabilites which firmware may support
    typedef enum {
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        SetFlightModeCapability =           1 << 0, ///< FirmwarePlugin::setFlightMode method is supported
        MavCmdPreflightStorageCapability =  1 << 1, ///< MAV_CMD_PREFLIGHT_STORAGE is supported
        PauseVehicleCapability =            1 << 2, ///< Vehicle supports pausing at current location
        GuidedModeCapability =              1 << 3, ///< Vehicle Support guided mode commands
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    } FirmwareCapabilities;
    
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    /// Called when Vehicle is first created to send any necessary mavlink messages to the firmware.
    virtual void initializeVehicle(Vehicle* vehicle);

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    /// @return true: Firmware supports all specified capabilites
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    virtual bool isCapable(FirmwareCapabilities capabilities);
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    /// Returns VehicleComponents for specified Vehicle
    ///     @param vehicle Vehicle  to associate with components
    /// @return List of VehicleComponents for the specified vehicle. Caller owns returned objects and must
    ///         free when no longer needed.
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    virtual QList<VehicleComponent*> componentsForVehicle(AutoPilotPlugin* vehicle);
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    /// Returns the list of available flight modes
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    virtual QStringList flightModes(void) { return QStringList(); }
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    /// Returns the name for this flight mode. Flight mode names must be human readable as well as audio speakable.
    ///     @param base_mode Base mode from mavlink HEARTBEAT message
    ///     @param custom_mode Custom mode from mavlink HEARTBEAT message
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    virtual QString flightMode(uint8_t base_mode, uint32_t custom_mode) const;
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    /// Sets base_mode and custom_mode to specified flight mode.
    ///     @param[out] base_mode Base mode for SET_MODE mavlink message
    ///     @param[out] custom_mode Custom mode for SET_MODE mavlink message
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    virtual bool setFlightMode(const QString& flightMode, uint8_t* base_mode, uint32_t* custom_mode);
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    /// Returns whether the vehicle is in guided mode or not.
    virtual bool isGuidedMode(const Vehicle* vehicle) const;

    /// Set guided flight mode
    virtual void setGuidedMode(Vehicle* vehicle, bool guidedMode);

    /// Returns whether the vehicle is paused or not.
    virtual bool isPaused(const Vehicle* vehicle) const;

    /// Causes the vehicle to stop at current position. If guide mode is supported, vehicle will be let in guide mode.
    /// If not, vehicle will be left in Loiter.
    virtual void pauseVehicle(Vehicle* vehicle);

    /// Command vehicle to return to launch
    virtual void guidedModeRTL(Vehicle* vehicle);

    /// Command vehicle to land at current location
    virtual void guidedModeLand(Vehicle* vehicle);

    /// Command vehicle to takeoff from current location
    ///     @param altitudeRel Relative altitude to takeoff to
    virtual void guidedModeTakeoff(Vehicle* vehicle, double altitudeRel);

    /// Command vehicle to move to specified location (altitude is included and relative)
    virtual void guidedModeGotoLocation(Vehicle* vehicle, const QGeoCoordinate& gotoCoord);

    /// Command vehicle to change to the specified relatice altitude
    virtual void guidedModeChangeAltitude(Vehicle* vehicle, double altitudeRel);

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    /// FIXME: This isn't quite correct being here. All code for Joystick suvehicleTypepport is currently firmware specific
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    /// not just this. I'm going to try to change that. If not, this will need to be removed.
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    /// Returns the number of buttons which are reserved for firmware use in the MANUAL_CONTROL mavlink
    /// message. For example PX4 Flight Stack reserves the first 8 buttons to simulate rc switches.
    /// The remainder can be assigned to Vehicle actions.
    /// @return -1: reserver all buttons, >0 number of buttons to reserve
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    virtual int manualControlReservedButtonCount(void);
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    /// Called before any mavlink message is processed by Vehicle such that the firmwre plugin
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    /// can adjust any message characteristics. This is handy to adjust or differences in mavlink
    /// spec implementations such that the base code can remain mavlink generic.
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    ///     @param vehicle Vehicle message came from
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    ///     @param message[in,out] Mavlink message to adjust if needed.
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    /// @return false: skip message, true: process message
    virtual bool adjustIncomingMavlinkMessage(Vehicle* vehicle, mavlink_message_t* message);
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    /// Called before any mavlink message is sent to the Vehicle so plugin can adjust any message characteristics.
    /// This is handy to adjust or differences in mavlink spec implementations such that the base code can remain
    /// mavlink generic.
    ///     @param vehicle Vehicle message came from
    ///     @param message[in,out] Mavlink message to adjust if needed.
    virtual void adjustOutgoingMavlinkMessage(Vehicle* vehicle, mavlink_message_t* message);

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    /// Determines how to handle the first item of the mission item list. Internally to QGC the first item
    /// is always the home position.
    /// @return
    ///     true: Send first mission item as home position to vehicle. When vehicle has no mission items on
    ///             it, it may or may not return a home position back in position 0.
    ///     false: Do not send first item to vehicle, sequence numbers must be adjusted
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    virtual bool sendHomePositionToVehicle(void);
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    /// Returns the parameter that is used to identify the default component
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    virtual QString getDefaultComponentIdParam(void) const { return QString(); }

    /// Returns the parameter which is used to identify the version number of parameter set
    virtual QString getVersionParam(void) { return QString(); }

    /// Returns the parameter set version info pulled from inside the meta data file. -1 if not found.
    virtual void getParameterMetaDataVersionInfo(const QString& metaDataFile, int& majorVersion, int& minorVersion);

    /// Returns the internal resource parameter meta date file.
    virtual QString internalParameterMetaDataFile(void) { return QString(); }

    /// Loads the specified parameter meta data file.
    /// @return Opaque parameter meta data information which must be stored with Vehicle. Vehicle is reponsible to
    ///         call deleteParameterMetaData when no longer needed.
    virtual QObject* loadParameterMetaData(const QString& metaDataFile) { Q_UNUSED(metaDataFile); return NULL; }
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    /// Adds the parameter meta data to the Fact
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    ///     @param opaqueParameterMetaData Opaque pointer returned from loadParameterMetaData
    virtual void addMetaDataToFact(QObject* parameterMetaData, Fact* fact, MAV_TYPE vehicleType) { Q_UNUSED(parameterMetaData); Q_UNUSED(fact); Q_UNUSED(vehicleType); return; }
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    /// List of supported mission commands. Empty list for all commands supported.
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    virtual QList<MAV_CMD> supportedMissionCommands(void);
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    /// Returns the names for the mission command json override files. Empty string to specify no overrides.
    ///     @param[out] commonJsonFilename Filename for common overrides
    ///     @param[out] fixedWingJsonFilename Filename for fixed wing overrides
    ///     @param[out] multiRotorJsonFilename Filename for multi rotor overrides
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    virtual void missionCommandOverrides(QString& commonJsonFilename, QString& fixedWingJsonFilename, QString& multiRotorJsonFilename) const;

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};

#endif