Allow speed for GPSNMEA configuration.

Author: wb2osz

src/config.c

@@ -4774,7 +4774,7 @@ void config_init (char *fname, struct audio_s *p_audio_config,
 
 
 /*
- * GPSNMEA		- Device name for reading from GPS receiver.
+ * GPSNMEA  serial-device  [ speed ]		- Direct connection to GPS receiver.
  */
 	  else if (strcasecmp(t, "gpsnmea") == 0) {
 	    t = split(NULL,0);
@@ -4783,8 +4783,15 @@ void config_init (char *fname, struct audio_s *p_audio_config,
 	      dw_printf ("Config file, line %d: Missing serial port name for GPS receiver.\n", line);
 	      continue;
 	    }
+	    strlcpy (p_misc_config->gpsnmea_port, t, sizeof(p_misc_config->gpsnmea_port));
+
+	    t = split(NULL,0);
+	    if (t != NULL) {
+	      int n = atoi(t);
+	      p_misc_config->gpsnmea_speed = n;
+	    }
 	    else {
-	      strlcpy (p_misc_config->gpsnmea_port, t, sizeof(p_misc_config->gpsnmea_port));
+	      p_misc_config->gpsnmea_speed = 4800;	// The standard at one time.
 	    }
 	  }
 

src/config.h

@@ -76,7 +76,8 @@ struct misc_config_s {
 
 	char gpsnmea_port[20];	/* Serial port name for reading NMEA sentences from GPS. */
 				/* e.g. COM22, /dev/ttyACM0 */
-				/* Currently no option for setting non-standard speed. */
+
+	int gpsnmea_speed;	/* Speed for above, baud, default 4800. */
 
 	char gpsd_host[20];	/* Host for gpsd server. */
 				/* e.g. localhost, 192.168.1.2 */

src/dwgpsnmea.c

@@ -148,7 +148,7 @@ int dwgpsnmea_init (struct misc_config_s *pconfig, int debug)
  * Should add an option to allow changing someday.
  */
 
-	s_gpsnmea_port_fd = serial_port_open (pconfig->gpsnmea_port, 4800);
+	s_gpsnmea_port_fd = serial_port_open (pconfig->gpsnmea_port, pconfig->gpsnmea_speed);
 
 	if (s_gpsnmea_port_fd != MYFDERROR) {
 #if __WIN32__
@@ -182,12 +182,10 @@ int dwgpsnmea_init (struct misc_config_s *pconfig, int debug)
 
 
 /* Return fd to share if waypoint wants same device. */
-/* Currently both are fixed speed at 4800. */
-/* If that ever becomes configurable, that needs to be compared too. */
 
 MYFDTYPE dwgpsnmea_get_fd(char *wp_port_name, int speed)
 {
-	if (strcmp(s_save_configp->gpsnmea_port, wp_port_name) == 0 && speed == 4800) {
+	if (strcmp(s_save_configp->gpsnmea_port, wp_port_name) == 0 && speed == s_save_configp->gpsnmea_speed) {
 	  return (s_gpsnmea_port_fd);
 	}
 	return (MYFDERROR);