Let the sender control the joystick message rate.

src/uas/UAS.cc

@@ -59,10 +59,6 @@ UAS::UAS(MAVLinkProtocol* protocol, Vehicle* vehicle, FirmwarePluginManager * fi
     controlPitchManual(true),
     controlYawManual(true),
     controlThrustManual(true),
-    manualRollAngle(0),
-    manualPitchAngle(0),
-    manualYawAngle(0),
-    manualThrust(0),
 
 #ifndef __mobile__
     fileManager(this, vehicle),
@@ -808,57 +804,17 @@ void UAS::processParamValueMsg(mavlink_message_t& msg, const QString& paramName,
 */
 void UAS::setExternalControlSetpoint(float roll, float pitch, float yaw, float thrust, quint16 buttons, int joystickMode)
 {
-    if (!_vehicle) {
-        return;
-    }
-
-    if (!_vehicle->priorityLink()) {
+    if (!_vehicle || !_vehicle->priorityLink()) {
         return;
     }
-
-    // Store the previous manual commands
-    static float manualRollAngle = 0.0;
-    static float manualPitchAngle = 0.0;
-    static float manualYawAngle = 0.0;
-    static float manualThrust = 0.0;
-    static quint16 manualButtons = 0;
-    static quint8 countSinceLastTransmission = 0; // Track how many calls to this function have occurred since the last MAVLink transmission
-
-    // Transmit the external setpoints only if they've changed OR if it's been a little bit since they were last transmit. To make sure there aren't issues with
-    // response rate, we make sure that a message is transmit when the commands have changed, then one more time, and then switch to the lower transmission rate
-    // if no command inputs have changed.
-
-    // The default transmission rate is 25Hz, but when no inputs have changed it drops down to 5Hz.
-    bool sendCommand = false;
-    if (countSinceLastTransmission++ >= 5) {
-        sendCommand = true;
-        countSinceLastTransmission = 0;
-    } else if ((!qIsNaN(roll) && roll != manualRollAngle) || (!qIsNaN(pitch) && pitch != manualPitchAngle) ||
-             (!qIsNaN(yaw) && yaw != manualYawAngle) || (!qIsNaN(thrust) && thrust != manualThrust) ||
-             buttons != manualButtons) {
-        sendCommand = true;
-
-        // Ensure that another message will be sent the next time this function is called
-        countSinceLastTransmission = 10;
-    }
-
-    // Now if we should trigger an update, let's do that
-    if (sendCommand) {
-        // Save the new manual control inputs
-        manualRollAngle = roll;
-        manualPitchAngle = pitch;
-        manualYawAngle = yaw;
-        manualThrust = thrust;
-        manualButtons = buttons;
-
     mavlink_message_t message;
-
     if (joystickMode == Vehicle::JoystickModeAttitude) {
         // send an external attitude setpoint command (rate control disabled)
         float attitudeQuaternion[4];
         mavlink_euler_to_quaternion(roll, pitch, yaw, attitudeQuaternion);
         uint8_t typeMask = 0x7; // disable rate control
-            mavlink_msg_set_attitude_target_pack_chan(mavlink->getSystemId(),
+        mavlink_msg_set_attitude_target_pack_chan(
+            mavlink->getSystemId(),
             mavlink->getComponentId(),
             _vehicle->priorityLink()->mavlinkChannel(),
             &message,
@@ -881,7 +837,8 @@ void UAS::setExternalControlSetpoint(float roll, float pitch, float yaw, float t
         py += roll;
         pz -= 2.0f*(thrust-0.5);
         uint16_t typeMask = (1<<11)|(7<<6)|(7<<3); // select only POSITION control
-            mavlink_msg_set_position_target_local_ned_pack_chan(mavlink->getSystemId(),
+        mavlink_msg_set_position_target_local_ned_pack_chan(
+            mavlink->getSystemId(),
             mavlink->getComponentId(),
             _vehicle->priorityLink()->mavlinkChannel(),
             &message,
@@ -909,7 +866,8 @@ void UAS::setExternalControlSetpoint(float roll, float pitch, float yaw, float t
         const float fy = -dcm[1][2] * thrust;
         const float fz = -dcm[2][2] * thrust;
         uint16_t typeMask = (3<<10)|(7<<3)|(7<<0)|(1<<9); // select only FORCE control (disable everything else)
-            mavlink_msg_set_position_target_local_ned_pack_chan(mavlink->getSystemId(),
+        mavlink_msg_set_position_target_local_ned_pack_chan(
+            mavlink->getSystemId(),
             mavlink->getComponentId(),
             _vehicle->priorityLink()->mavlinkChannel(),
             &message,
@@ -941,7 +899,8 @@ void UAS::setExternalControlSetpoint(float roll, float pitch, float yaw, float t
         vz -= 2.0f*(thrust-0.5);
         yawrate += yaw; //XXX: not sure what scale to apply here
         uint16_t typeMask = (1<<10)|(7<<6)|(7<<0); // select only VELOCITY control
-            mavlink_msg_set_position_target_local_ned_pack_chan(mavlink->getSystemId(),
+        mavlink_msg_set_position_target_local_ned_pack_chan(
+            mavlink->getSystemId(),
             mavlink->getComponentId(),
             _vehicle->priorityLink()->mavlinkChannel(),
             &message,
@@ -962,24 +921,14 @@ void UAS::setExternalControlSetpoint(float roll, float pitch, float yaw, float t
             0,
             yawrate);
     } else if (joystickMode == Vehicle::JoystickModeRC) {
-
-            // Save the new manual control inputs
-            manualRollAngle     = roll;
-            manualPitchAngle    = pitch;
-            manualYawAngle      = yaw;
-            manualThrust        = thrust;
-            manualButtons       = buttons;
-
         // Store scaling values for all 3 axes
-            const float axesScaling = 1.0 * 1000.0;
-
+        static const float axesScaling = 1.0 * 1000.0;
         // Calculate the new commands for roll, pitch, yaw, and thrust
         const float newRollCommand = roll * axesScaling;
         // negate pitch value because pitch is negative for pitching forward but mavlink message argument is positive for forward
         const float newPitchCommand  = -pitch * axesScaling;
         const float newYawCommand    = yaw * axesScaling;
         const float newThrustCommand = thrust * axesScaling;
-
         // Send the MANUAL_COMMAND message
         mavlink_msg_manual_control_pack_chan(
             static_cast<uint8_t>(mavlink->getSystemId()),
@@ -993,9 +942,7 @@ void UAS::setExternalControlSetpoint(float roll, float pitch, float yaw, float t
             static_cast<int16_t>(newYawCommand),
             buttons);
     }
-
     _vehicle->sendMessageOnLink(_vehicle->priorityLink(), message);
-    }
 }
 
 #ifndef __mobile__

src/uas/UAS.h

@@ -138,11 +138,6 @@ protected:
     bool controlYawManual;      ///< status flag, true if yaw is controlled manually
     bool controlThrustManual;   ///< status flag, true if thrust is controlled manually
 
-    double manualRollAngle;     ///< Roll angle set by human pilot (radians)
-    double manualPitchAngle;    ///< Pitch angle set by human pilot (radians)
-    double manualYawAngle;      ///< Yaw angle set by human pilot (radians)
-    double manualThrust;        ///< Thrust set by human pilot (radians)
-
     /// POSITION
     bool isGlobalPositionKnown; ///< If the global position has been received for this MAV