[gpsd-dev] [PATCH 1/3] Update PRN numbers reference. Also PRNMAX definition.

[Sanjeev Gupta]

---
 gps.h | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/gps.h b/gps.h
index 5bbd0a2..df433e9 100644
--- a/gps.h
+++ b/gps.h
@@ -40,7 +40,7 @@ extern "C" {
 #define GPSD_API_MINOR_VERSION 0       /* bump on compatible changes */
 
 #define MAXCHANNELS    72      /* must be > 12 GPS + 12 GLONASS + 2 WAAS */
-#define GPS_PRNMAX     32      /* above this number are SBAS satellites */
+#define GPS_PRNMAX     96      /* above this number are SBAS satellites */
 #define MAXUSERDEVS    4       /* max devices per user */
 #define GPS_PATH_MAX   128     /* for names like /dev/serial/by-id/... */
 
@@ -89,17 +89,18 @@ struct gps_fix_t {
 
 /*
  * Satellite ID classes.
- * IS-GPS-200 Revision E, paragraph 6.3.6
+ * IS-GPS-200 Revision H, paragraph 6.3.6
  */
 #define GPS_PRN(n)     (((n) >= 1) && ((n) <= 63))     /* U.S. GPS satellite */
-#define GBAS_PRN(n)    ((n) >= 64 && ((n) <= 119))     /* Ground Based 
Augmentation System and other augmentation systems */
-#define SBAS_PRN(n)    ((n) >= 120 && ((n) <= 158))    /* Satellite Based 
Augmentation System */
-#define GNSS_PRN(n)    ((n) >= 159 && ((n) <= 210))    /* other Global 
Navigation Satellite System */
+#define GBAS_PRN(n)    ((n) >= 64 && ((n) <= 119))     /* Other GNSS (GLONASS) 
and Ground Based Augmentation System (eg WAAS)*/
+#define SBAS_PRN(n)    ((n) >= 120 && ((n) <= 158))    /* Satellite Based 
Augmentation System (eg GAGAN)*/
+#define GNSS_PRN(n)    ((n) >= 159 && ((n) <= 210))    /* other GNSS (eg 
BeiDou) */
 
 /*
  * GLONASS birds reuse GPS PRNs.
  * it is a GPSD convention to map them to IDs 65..96.
  * (some other programs push them to 33 and above).
+ * The US GPS constellation plans to use the 33-63 range.
  */
 #define GLONASS_PRN_OFFSET     64
 
-- 
2.1.4