uORB: added an ORB topic for system_power

holds power supply state and 5V rail voltage on FMUv2

src/modules/uORB/objects_common.cpp

@@ -90,6 +90,9 @@ ORB_DEFINE(battery_status, struct battery_status_s);
 #include "topics/servorail_status.h"
 ORB_DEFINE(servorail_status, struct servorail_status_s);
 
+#include "topics/system_power.h"
+ORB_DEFINE(system_power, struct system_power_s);
+
 #include "topics/vehicle_global_position.h"
 ORB_DEFINE(vehicle_global_position, struct vehicle_global_position_s);
 

src/modules/uORB/topics/system_power.h

@@ -0,0 +1,71 @@
+/****************************************************************************
+ *
+ *   Copyright (C) 2012-2013 PX4 Development Team. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name PX4 nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/**
+ * @file system_power.h
+ *
+ * Definition of the system_power voltage and power status uORB topic.
+ */
+
+#ifndef SYSTEM_POWER_H_
+#define SYSTEM_POWER_H_
+
+#include "../uORB.h"
+#include <stdint.h>
+
+/**
+ * @addtogroup topics
+ * @{
+ */
+
+/**
+ * voltage and power supply status
+ */
+struct system_power_s {
+	uint64_t	timestamp;		/**< microseconds since system boot */
+	float   	voltage5V_v;		/**< peripheral 5V rail voltage */
+	uint8_t         usb_connected:1;        /**< USB is connected when 1 */
+	uint8_t         brick_valid:1;          /**< brick power is good when 1 */
+	uint8_t         servo_valid:1;          /**< servo power is good when 1 */
+	uint8_t		periph_5V_OC:1;         /**< peripheral overcurrent when 1 */
+	uint8_t		hipower_5V_OC:1;        /**< hi power peripheral overcurrent when 1 */
+};
+
+/**
+ * @}
+ */
+
+/* register this as object request broker structure */
+ORB_DECLARE(system_power);
+
+#endif