rrlp-ephemeris: Add support for filling ReferenceTime IE
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/gps.h b/gps.h
index 03d643f..241b9d7 100644
--- a/gps.h
+++ b/gps.h
@@ -151,12 +151,20 @@
};
+/* Reference time */
+struct gps_ref_time {
+ int wn; /* GPS week number */
+ double tow; /* in seconds */
+};
+
+
/* All assist data */
#define GPS_FIELD_IONOSPHERE (1<<0)
#define GPS_FIELD_UTC (1<<1)
#define GPS_FIELD_ALMANAC (1<<2)
#define GPS_FIELD_EPHEMERIS (1<<3)
#define GPS_FIELD_REFPOS (1<<4)
+#define GPS_FIELD_REFTIME (1<<5)
struct gps_assist_data {
int fields;
@@ -165,6 +173,7 @@
struct gps_almanac almanac;
struct gps_ephemeris ephemeris;
struct gps_ref_pos ref_pos;
+ struct gps_ref_time ref_time;
};
diff --git a/rrlp.c b/rrlp.c
index 5e55d1d..e60c3ab 100644
--- a/rrlp.c
+++ b/rrlp.c
@@ -430,16 +430,17 @@
{
struct ReferenceTime *rrlp_reftime;
- /* FIXME: Check if info is in gps_ad */
+ if (!(gps_ad->fields & GPS_FIELD_REFTIME))
+ return -EINVAL;
rrlp_reftime = calloc(1, sizeof(*rrlp_reftime));
if (!rrlp_reftime)
return -ENOMEM;
rrlp_gps_ad->controlHeader.referenceTime = rrlp_reftime;
- /* FIXME */
-// rrlp_reftime.gpsTime.gpsTOW23b = g_gps_tow / 80; /* 23 bits */
-// rrlp_reftime.gpsTime.gpsWeek = g_gps_week & 0x3ff; /* 10 bits */
+ rrlp_reftime->gpsTime.gpsWeek = gps_ad->ref_time.wn & 0x3ff; /* 10b */
+ rrlp_reftime->gpsTime.gpsTOW23b =
+ ((int)floor(gps_ad->ref_time.tow / 0.08)) & 0x7fffff; /* 23b */
return 0;
}