gpssim: cleaned up gpssim code

The gpssim code was named gps_sim vs being consistent with other
simulators (gpssim). It also used warnx and errx and had lots of
commeted out code.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>

posix-configs/SITL/init/rcS

@@ -12,7 +12,7 @@ gyrosim start
 accelsim start
 barosim start
 adcsim start
-gps_sim start
+gpssim start
 commander start
 sensors start
 ekf_att_pos_estimator start

src/platforms/posix/drivers/gpssim/module.mk

@@ -35,7 +35,7 @@
 # Simulated GPS driver
 #
 
-MODULE_COMMAND	= gps_sim
+MODULE_COMMAND	= gpssim
 
 SRCS		= gpssim.cpp
 

src/platforms/posix/drivers/gpssim/ubx_sim.cpp

@@ -76,14 +76,12 @@ UBX::UBX(const int &fd, struct vehicle_gps_position_s *gps_position, struct sate
 	_gps_position(gps_position),
 	_satellite_info(satellite_info),
 {
-
 }
 
 UBX::~UBX()
 {
 }
 
-
 int UBX_SIM::configure(unsigned &baudrate)
 {
 	return 0;
@@ -92,7 +90,7 @@ int UBX_SIM::configure(unsigned &baudrate)
 int	// -1 = error, 0 = no message handled, 1 = message handled, 2 = sat info message handled
 UBX_SIM::receive(const unsigned timeout)
 {
-		/* copy data from simulator here */
-		usleep(1000000);
-		return 1;
+	/* copy data from simulator here */
+	usleep(1000000);
+	return 1;
 }

src/platforms/posix/drivers/gpssim/ubx_sim.h

@@ -39,9 +39,6 @@
 #ifndef UBX_SIM_H_
 #define UBX_SIM_H_
 
-
-
-
 class UBX_SIM
 {
 public:
@@ -51,9 +48,6 @@ public:
 	int			configure(unsigned &baudrate);
 
 private:
-
-	
-
 	int			_fd;
 	struct vehicle_gps_position_s *_gps_position;
 	struct satellite_info_s *_satellite_info;