MockLinkMissionItemHandler.cc

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#include "MockLinkMissionItemHandler.h"
 
#include "MAVLinkProtocol.h"
#include "MockLink.h"
#include "QGCLoggingCategory.h"
 
QGC_LOGGING_CATEGORY(MockLinkMissionItemHandlerLog, "Comms.MockLink.MockLinkMissionItemHandler")
 
MockLinkMissionItemHandler::MockLinkMissionItemHandler(MockLink *mockLink)
    : QObject(mockLink)
    , _mockLink(mockLink)
{
    // qCDebug(MockLinkMissionItemHandlerLog) << Q_FUNC_INFO << this;
 
    Q_ASSERT(mockLink);
 
    (void) connect(&_missionItemResponseTimer, &QTimer::timeout, this, &MockLinkMissionItemHandler::_missionItemResponseTimeout);
}
 
MockLinkMissionItemHandler::~MockLinkMissionItemHandler()
{
    // qCDebug(MockLinkMissionItemHandlerLog) << Q_FUNC_INFO << this;
}
 
void MockLinkMissionItemHandler::_startMissionItemResponseTimer()
{
    _missionItemResponseTimer.start(500);
}
 
bool MockLinkMissionItemHandler::handleMavlinkMessage(const mavlink_message_t &msg)
{
    switch (msg.msgid) {
    case MAVLINK_MSG_ID_MISSION_REQUEST_LIST:
        _handleMissionRequestList(msg);
        break;
    case MAVLINK_MSG_ID_MISSION_REQUEST_INT:
        _handleMissionRequest(msg);
        break;
    case MAVLINK_MSG_ID_MISSION_ITEM_INT:
        _handleMissionItem(msg);
        break;
    case MAVLINK_MSG_ID_MISSION_COUNT:
        _handleMissionCount(msg);
        break;
    case MAVLINK_MSG_ID_MISSION_ACK:
        // Acks are received back for each MISSION_ITEM message
        break;
    case MAVLINK_MSG_ID_MISSION_SET_CURRENT:
        // Sets the currently active mission item
        break;
    case MAVLINK_MSG_ID_MISSION_CLEAR_ALL:
        _handleMissionClearAll(msg);
        break;
    default:
        return false;
    }
 
    return true;
}
 
void MockLinkMissionItemHandler::_handleMissionClearAll(const mavlink_message_t &msg)
{
    mavlink_mission_clear_all_t clearAll{};
    mavlink_msg_mission_clear_all_decode(&msg, &clearAll);
 
    Q_ASSERT(clearAll.target_system == _mockLink->vehicleId());
 
    _requestType = static_cast<MAV_MISSION_TYPE>(clearAll.mission_type);
    qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionClearAll" << _requestType;
 
    switch (_requestType) {
    case MAV_MISSION_TYPE_MISSION:
        _missionItems.clear();
        break;
    case MAV_MISSION_TYPE_FENCE:
        _fenceItems.clear();
        break;
    case MAV_MISSION_TYPE_RALLY:
        _rallyItems.clear();
        break;
    case MAV_MISSION_TYPE_ALL:
        _missionItems.clear();
        _fenceItems.clear();
        _rallyItems.clear();
        break;
    default:
        Q_ASSERT(false);
    }
 
    _sendAck(MAV_MISSION_ACCEPTED);
}
 
void MockLinkMissionItemHandler::_handleMissionRequestList(const mavlink_message_t &msg)
{
    qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequestList read sequence";
 
    _failReadRequest1FirstResponse = true;
 
    if (_failureMode == FailReadRequestListNoResponse) {
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequestList not responding due to failure mode FailReadRequestListNoResponse";
        return;
    }
 
    if ((_failureMode == FailReadRequestListFirstResponse) && _failReadRequestListFirstResponse) {
        _failReadRequestListFirstResponse = false;
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequestList not responding due to failure mode FailReadRequestListFirstResponse";
        return;
    }
 
    _failReadRequestListFirstResponse = true;
 
    mavlink_mission_request_list_t request{};
    mavlink_msg_mission_request_list_decode(&msg, &request);
 
    Q_ASSERT(request.target_system == _mockLink->vehicleId());
 
    _requestType = static_cast<MAV_MISSION_TYPE>(request.mission_type);
 
    int itemCount;
    switch (_requestType) {
    case MAV_MISSION_TYPE_MISSION:
        itemCount = _missionItems.count();
        if (itemCount == 0 && _sendHomePositionOnEmptyList) {
            itemCount = 1;
        }
        break;
    case MAV_MISSION_TYPE_FENCE:
        itemCount = _fenceItems.count();
        break;
    case MAV_MISSION_TYPE_RALLY:
        itemCount = _rallyItems.count();
        break;
    default:
        Q_ASSERT(false);
    }
 
    mavlink_message_t responseMsg{};
    (void) mavlink_msg_mission_count_pack_chan(
        _mockLink->vehicleId(),
        MAV_COMP_ID_AUTOPILOT1,
        _mockLink->mavlinkChannel(),
        &responseMsg,               // Outgoing message
        msg.sysid,                  // Target is original sender
        msg.compid,                 // Target is original sender
        itemCount,                  // Number of mission items
        _requestType,
        0
    );
 
    _mockLink->respondWithMavlinkMessage(responseMsg);
}
 
void MockLinkMissionItemHandler::_handleMissionRequest(const mavlink_message_t &msg)
{
    qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequest read sequence";
 
    mavlink_mission_request_int_t request{};
    mavlink_msg_mission_request_int_decode(&msg, &request);
 
    Q_ASSERT(request.target_system == _mockLink->vehicleId());
 
    if ((_failureMode == FailReadRequest0NoResponse) && (request.seq == 0)) {
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequest not responding due to failure mode FailReadRequest0NoResponse";
        return;
    }
 
    if ((_failureMode == FailReadRequest1NoResponse) && (request.seq == 1)) {
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequest not responding due to failure mode FailReadRequest1NoResponse";
        return;
    }
 
    if ((_failureMode == FailReadRequest1FirstResponse) && (request.seq == 1) && _failReadRequest1FirstResponse) {
        _failReadRequest1FirstResponse = false;
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequest not responding due to failure mode FailReadRequest1FirstResponse";
        return;
    }
 
    // FIXME: Track whether all items are requested, or requested in sequence
 
    if (((_failureMode == FailReadRequest0IncorrectSequence) && (request.seq == 0)) ||
            ((_failureMode == FailReadRequest1IncorrectSequence) && (request.seq == 1))) {
        // Send back the incorrect sequence number
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionRequest sending bad sequence number";
        request.seq++;
    }
 
    if (((_failureMode == FailReadRequest0ErrorAck) && (request.seq == 0)) ||
            ((_failureMode == FailReadRequest1ErrorAck) && (request.seq == 1))) {
        _sendAck(_failureAckResult);
        return;
    }
 
    mavlink_mission_item_int_t missionItemInt{};
 
    switch (request.mission_type) {
    case MAV_MISSION_TYPE_MISSION:
        if (_missionItems.isEmpty() && _sendHomePositionOnEmptyList) {
            (void) memset(&missionItemInt, 0, sizeof(missionItemInt));
            missionItemInt.frame = MAV_FRAME_GLOBAL_RELATIVE_ALT;
            missionItemInt.command = MAV_CMD_NAV_WAYPOINT;
            missionItemInt.autocontinue = true;
        } else {
            missionItemInt = _missionItems[request.seq];
        }
        break;
    case MAV_MISSION_TYPE_FENCE:
        missionItemInt = _fenceItems[request.seq];
        break;
    case MAV_MISSION_TYPE_RALLY:
        missionItemInt = _rallyItems[request.seq];
        break;
    default:
        Q_ASSERT(false);
    }
 
    mavlink_message_t responseMsg{};
    (void) mavlink_msg_mission_item_int_pack_chan(
        _mockLink->vehicleId(),
        MAV_COMP_ID_AUTOPILOT1,
        _mockLink->mavlinkChannel(),
        &responseMsg,                // Outgoing message
        msg.sysid,                   // Target is original sender
        msg.compid,                  // Target is original sender
        request.seq,                 // Index of mission item being sent
        missionItemInt.frame,
        missionItemInt.command,
        missionItemInt.current,
        missionItemInt.autocontinue,
        missionItemInt.param1, missionItemInt.param2, missionItemInt.param3, missionItemInt.param4,
        missionItemInt.x, missionItemInt.y, missionItemInt.z,
        _requestType
    );
 
    _mockLink->respondWithMavlinkMessage(responseMsg);
}
 
void MockLinkMissionItemHandler::_handleMissionCount(const mavlink_message_t &msg)
{
    mavlink_mission_count_t missionCount{};
    mavlink_msg_mission_count_decode(&msg, &missionCount);
    Q_ASSERT(missionCount.target_system == _mockLink->vehicleId());
 
    _requestType = (MAV_MISSION_TYPE)missionCount.mission_type;
    _writeSequenceCount = missionCount.count;
    Q_ASSERT(_writeSequenceCount >= 0);
 
    qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionCount write sequence _writeSequenceCount:" << _writeSequenceCount;
 
    switch (missionCount.mission_type) {
    case MAV_MISSION_TYPE_MISSION:
        _missionItems.clear();
        break;
    case MAV_MISSION_TYPE_FENCE:
        _fenceItems.clear();
        break;
    case MAV_MISSION_TYPE_RALLY:
        _rallyItems.clear();
        break;
    }
 
    if (_writeSequenceCount == 0) {
        _sendAck(MAV_MISSION_ACCEPTED);
        return;
    }
 
    if (_failureMode == FailWriteMissionCountNoResponse) {
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionCount not responding due to failure mode FailWriteMissionCountNoResponse";
        return;
    }
 
    if (_failureMode == FailWriteMissionCountFirstResponse && _failWriteMissionCountFirstResponse) {
        _failWriteMissionCountFirstResponse = false;
        qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionCount not responding due to failure mode FailWriteMissionCountNoResponse";
        return;
    }
 
    _failWriteMissionCountFirstResponse = true;
    _writeSequenceIndex = 0;
    _requestNextMissionItem(_writeSequenceIndex);
}
 
void MockLinkMissionItemHandler::_requestNextMissionItem(int sequenceNumber)
{
    qCDebug(MockLinkMissionItemHandlerLog) << "write sequence sequenceNumber:" << sequenceNumber << "_failureMode:" << _failureMode;
 
    if ((_failureMode == FailWriteRequest1NoResponse) && (sequenceNumber == 1)) {
        qCDebug(MockLinkMissionItemHandlerLog) << "_requestNextMissionItem not responding due to failure mode FailWriteRequest1NoResponse";
        return;
    }
 
    if (sequenceNumber >= _writeSequenceCount) {
        qCWarning(MockLinkMissionItemHandlerLog) << "_requestNextMissionItem requested seqeuence number > write count sequenceNumber::_writeSequenceCount" << sequenceNumber << _writeSequenceCount;
        return;
    }
 
    if (((_failureMode == FailWriteRequest0IncorrectSequence) && (sequenceNumber == 0)) ||
            ((_failureMode == FailWriteRequest1IncorrectSequence) && (sequenceNumber == 1))) {
        sequenceNumber++;
    }
 
    if (((_failureMode == FailWriteRequest0ErrorAck) && (sequenceNumber == 0)) ||
            ((_failureMode == FailWriteRequest1ErrorAck) && (sequenceNumber == 1))) {
        qCDebug(MockLinkMissionItemHandlerLog) << "_requestNextMissionItem sending ack error due to failure mode";
        _sendAck(_failureAckResult);
        return;
    }
 
    mavlink_message_t message{};
    (void) mavlink_msg_mission_request_int_pack_chan(
        _mockLink->vehicleId(),
        MAV_COMP_ID_AUTOPILOT1,
        _mockLink->mavlinkChannel(),
        &message,
        MAVLinkProtocol::instance()->getSystemId(),
        MAVLinkProtocol::getComponentId(),
        sequenceNumber,
        _requestType
    );
    _mockLink->respondWithMavlinkMessage(message);
 
    // If response with Mission Item doesn't come before timer fires it's an error
    _startMissionItemResponseTimer();
}
 
void MockLinkMissionItemHandler::_sendAck(MAV_MISSION_RESULT ackType) const
{
    qCDebug(MockLinkMissionItemHandlerLog) << "_sendAck write sequence complete ackType:" << ackType;
 
    mavlink_message_t message{};
    (void) mavlink_msg_mission_ack_pack_chan(
        _mockLink->vehicleId(),
        MAV_COMP_ID_AUTOPILOT1,
        _mockLink->mavlinkChannel(),
        &message,
        MAVLinkProtocol::instance()->getSystemId(),
        MAVLinkProtocol::getComponentId(),
        ackType,
        _requestType,
        0
    );
 
    _mockLink->respondWithMavlinkMessage(message);
}
 
void MockLinkMissionItemHandler::_handleMissionItem(const mavlink_message_t &msg)
{
    qCDebug(MockLinkMissionItemHandlerLog) << "_handleMissionItem write sequence";
 
    _missionItemResponseTimer.stop();
 
    mavlink_mission_item_int_t missionItemInt{};
    mavlink_msg_mission_item_int_decode(&msg, &missionItemInt);
 
    const MAV_MISSION_TYPE missionType = static_cast<MAV_MISSION_TYPE>(missionItemInt.mission_type);
    const uint16_t seq = missionItemInt.seq;
 
    switch (missionType) {
    case MAV_MISSION_TYPE_MISSION:
        _missionItems[seq] = missionItemInt;
        break;
    case MAV_MISSION_TYPE_FENCE:
        _fenceItems[seq] = missionItemInt;
        break;
    case MAV_MISSION_TYPE_RALLY:
        _rallyItems[seq] = missionItemInt;
        break;
    case MAV_MISSION_TYPE_ENUM_END:
    case MAV_MISSION_TYPE_ALL:
        qCWarning(MockLinkMissionItemHandlerLog) << "Internal error";
        break;
    }
 
    _writeSequenceIndex++;
    if (_writeSequenceIndex < _writeSequenceCount) {
        if ((_failureMode == FailWriteFinalAckMissingRequests) && (_writeSequenceIndex == 3)) {
            // Send MAV_MISSION_ACCEPTED ack too early
            _sendAck(MAV_MISSION_ACCEPTED);
        } else {
            _requestNextMissionItem(_writeSequenceIndex);
        }
 
        return;
    }
 
    if (_failureMode != FailWriteFinalAckNoResponse) {
        MAV_MISSION_RESULT ack = MAV_MISSION_ACCEPTED;
 
        if (_failureMode == FailWriteFinalAckErrorAck) {
            ack = MAV_MISSION_ERROR;
        }
 
        _sendAck(ack);
    }
}
 
void MockLinkMissionItemHandler::_missionItemResponseTimeout()
{
    qCWarning(MockLinkMissionItemHandlerLog) << "Timeout waiting for next MISSION_ITEM_INT";
    Q_ASSERT(false);
}
 
void MockLinkMissionItemHandler::sendUnexpectedMissionAck(MAV_MISSION_RESULT ackType)
{
    _sendAck(ackType);
}
 
void MockLinkMissionItemHandler::sendUnexpectedMissionItem()
{
    // FIXME: NYI
    Q_ASSERT(false);
}
 
void MockLinkMissionItemHandler::sendUnexpectedMissionRequest()
{
    // FIXME: NYI
    Q_ASSERT(false);
}
 
void MockLinkMissionItemHandler::setFailureMode(FailureMode_t failureMode, MAV_MISSION_RESULT failureAckResult)
{
    _failureMode = failureMode;
    _failureAckResult = failureAckResult;
}
 
void MockLinkMissionItemHandler::shutdown()
{
    _missionItemResponseTimer.stop();
}