Copter: aux switches for relays 2,3 and 4

ArduCopter/defines.h

@@ -65,7 +65,10 @@ enum aux_sw_func {
     AUXSW_LOST_COPTER_SOUND =   30, // Play lost copter sound
     AUXSW_MOTOR_ESTOP =         31, // Emergency Stop Switch
     AUXSW_MOTOR_INTERLOCK =     32, // Motor On/Off switch
-    AUXSW_BRAKE =               33  // Brake flight mode
+    AUXSW_BRAKE =               33, // Brake flight mode
+	AUXSW_RELAY2 =              34, // Relay2 pin on/off (in Mission planner set CH8_OPT  = 34)
+    AUXSW_RELAY3 =              35, // Relay3 pin on/off (in Mission planner set CH9_OPT  = 35)
+    AUXSW_RELAY4 =              36  // Relay4 pin on/off (in Mission planner set CH10_OPT = 36)
 };
 
 // Frame types

ArduCopter/switches.cpp

@@ -235,7 +235,6 @@ void Copter::init_aux_switch_function(int8_t ch_option, uint8_t ch_flag)
         case AUXSW_MISSION_RESET:
         case AUXSW_ATTCON_FEEDFWD:
         case AUXSW_ATTCON_ACCEL_LIM:
-        case AUXSW_RELAY:
         case AUXSW_LANDING_GEAR:
         case AUXSW_MOTOR_ESTOP:
         case AUXSW_MOTOR_INTERLOCK:
@@ -521,7 +520,19 @@ void Copter::do_aux_switch_function(int8_t ch_function, uint8_t ch_flag)
             ServoRelayEvents.do_set_relay(0, ch_flag == AUX_SWITCH_HIGH);
             break;
 
-        case AUXSW_LANDING_GEAR:
+        case AUXSW_RELAY2:
+			ServoRelayEvents.do_set_relay(1, ch_flag == AUX_SWITCH_HIGH);
+			break;
+
+		case AUXSW_RELAY3:
+			ServoRelayEvents.do_set_relay(2, ch_flag == AUX_SWITCH_HIGH);
+			break;
+	   
+	   case AUXSW_RELAY4:
+			ServoRelayEvents.do_set_relay(3, ch_flag == AUX_SWITCH_HIGH);
+			break;
+		
+		case AUXSW_LANDING_GEAR:
             switch (ch_flag) {
                 case AUX_SWITCH_LOW:
                     landinggear.set_cmd_mode(LandingGear_Deploy);