Mag: move to generated uORB topics

msg/sensor_mag.msg

+uint64 timestamp
+uint64 error_count
+float32 x
+float32 y
+float32 z
+float32 range_ga
+float32 scaling
+float32 temperature
+
+int16 x_raw
+int16 y_raw
+int16 z_raw

src/drivers/drv_mag.h

@@ -49,26 +49,8 @@
 #define MAG1_DEVICE_PATH	"/dev/mag1"
 #define MAG2_DEVICE_PATH	"/dev/mag2"
 
-/**
- * mag report structure.  Reads from the device must be in multiples of this
- * structure.
- *
- * Output values are in gauss.
- */
-struct mag_report {
-	uint64_t timestamp;
-	uint64_t error_count;
-	float x;
-	float y;
-	float z;
-	float range_ga;
-	float scaling;
-	float temperature;
-
-	int16_t x_raw;
-	int16_t y_raw;
-	int16_t z_raw;
-};
+#include <uOrb/topics/sensor_mag.h>
+#define mag_report sensor_mag_s
 
 /** mag scaling factors; Vout = (Vin * Vscale) + Voffset */
 struct mag_scale {
@@ -80,12 +62,6 @@ struct mag_scale {
 	float	z_scale;
 };
 
-/*
- * ObjDev tag for raw magnetometer data.
- */
-ORB_DECLARE(sensor_mag);
-
-
 /*
  * ioctl() definitions
  */