AP_RobotisServo: allow RobotisServo protocol to be compiled out

libraries/AP_RobotisServo/AP_RobotisServo.cpp

@@ -34,15 +34,15 @@
 * limitations under the License.
 */
 
+#include "AP_RobotisServo.h"
+
+#if AP_ROBOTISSERVO_ENABLED
+
 #include <AP_HAL/AP_HAL.h>
 #include <AP_Math/AP_Math.h>
 #include <AP_SerialManager/AP_SerialManager.h>
 #include <SRV_Channel/SRV_Channel.h>
 
-#include "AP_RobotisServo.h"
-
-#if NUM_SERVO_CHANNELS
-
 extern const AP_HAL::HAL& hal;
 
 #define BROADCAST_ID 0xFE
@@ -406,4 +406,5 @@ void AP_RobotisServo::update()
         send_command(i+1, REG_GOAL_POSITION, value, 4);
     }
 }
-#endif //NUM_SERVO_CHANNELS
+
+#endif  // AP_ROBOTISSERVO_ENABLED

libraries/AP_RobotisServo/AP_RobotisServo.h

@@ -18,6 +18,14 @@
 
 #pragma once
 
+#include <AP_HAL/AP_HAL_Boards.h>
+
+#ifndef AP_ROBOTISSERVO_ENABLED
+#define AP_ROBOTISSERVO_ENABLED 1
+#endif
+
+#if AP_ROBOTISSERVO_ENABLED
+
 #include <AP_HAL/AP_HAL.h>
 #include <AP_Param/AP_Param.h>
 
@@ -65,3 +73,5 @@ private:
     uint32_t last_send_us;
     uint32_t delay_time_us;
 };
+
+#endif  // AP_ROBOTISSERVO_ENABLED