Make supportsRadio a plugin option

src/AutoPilotPlugins/APM/APMAutoPilotPlugin.cc

@@ -66,7 +66,7 @@ const QVariantList& APMAutoPilotPlugin::vehicleComponents(void)
             _airframeComponent->setupTriggerSignals();
             _components.append(QVariant::fromValue((VehicleComponent*)_airframeComponent));
 
-            if ( !_vehicle->sub() ) {
+            if ( _vehicle->supportsRadio() ) {
                 _radioComponent = new APMRadioComponent(_vehicle, this);
                 _radioComponent->setupTriggerSignals();
                 _components.append(QVariant::fromValue((VehicleComponent*)_radioComponent));

src/FirmwarePlugin/APM/ArduSubFirmwarePlugin.cc

@@ -62,3 +62,8 @@ bool ArduSubFirmwarePlugin::supportsManualControl(void)
 {
     return true;
 }
+
+bool ArduSubFirmwarePlugin::supportsRadio(void)
+{
+    return false;
+}

src/FirmwarePlugin/APM/ArduSubFirmwarePlugin.h

@@ -72,6 +72,8 @@ public:
     bool supportsThrottleModeCenterZero(void);
 
     bool supportsManualControl(void);
+
+    bool supportsRadio(void);
 };
 
 #endif

src/FirmwarePlugin/FirmwarePlugin.cc

@@ -94,6 +94,11 @@ bool FirmwarePlugin::supportsManualControl(void)
     return false;
 }
 
+bool FirmwarePlugin::supportsRadio(void)
+{
+    return true;
+}
+
 bool FirmwarePlugin::adjustIncomingMavlinkMessage(Vehicle* vehicle, mavlink_message_t* message)
 {
     Q_UNUSED(vehicle);

src/FirmwarePlugin/FirmwarePlugin.h

@@ -137,6 +137,10 @@ public:
     /// By default, this returns false unless overridden in the firmware plugin.
     virtual bool supportsManualControl(void);
 
+    /// Returns true if the firmware supports the use of the RC radio and requires the RC radio
+    /// setup page. Returns true by default.
+    virtual bool supportsRadio(void);
+
     /// Called before any mavlink message is processed by Vehicle such that the firmwre 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.

src/Vehicle/Vehicle.cc

@@ -1525,6 +1525,11 @@ bool Vehicle::supportsThrottleModeCenterZero(void) const
     return _firmwarePlugin->supportsThrottleModeCenterZero();
 }
 
+bool Vehicle::supportsRadio(void) const
+{
+    return _firmwarePlugin->supportsRadio();
+}
+
 void Vehicle::_setCoordinateValid(bool coordinateValid)
 {
     if (coordinateValid != _coordinateValid) {

src/Vehicle/Vehicle.h

@@ -475,6 +475,7 @@ public:
 
     bool supportsManualControl(void) const;
     bool supportsThrottleModeCenterZero(void) const;
+    bool supportsRadio(void) const;
 
     void setFlying(bool flying);
     void setGuidedMode(bool guidedMode);