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| author | Gary E. Miller <gem@rellim.com> | 2018-09-19 19:15:04 -0700 |
|---|---|---|
| committer | Gary E. Miller <gem@rellim.com> | 2018-09-19 19:15:04 -0700 |
| commit | e3a4e01668b2f50fa6b8a7ed11fe9d1a2c9a19f1 (patch) | |
| tree | 5cfb749f506440495f20c3b95c39350c8b4ffa17 /driver_greis.c | |
| parent | 4126514c1b4f07cbd05baf923744de47db2745a1 (diff) | |
| download | gpsd-e3a4e01668b2f50fa6b8a7ed11fe9d1a2c9a19f1.tar.gz | |
GREIS: Add gnssid:svid to skyview.
The GREIS->gnssid:svid looks different than the u-blox->gnssid:svid.
Diffstat (limited to 'driver_greis.c')
| -rw-r--r-- | driver_greis.c | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/driver_greis.c b/driver_greis.c index fd360fe8..cf219b97 100644 --- a/driver_greis.c +++ b/driver_greis.c @@ -349,6 +349,7 @@ static gps_mask_t greis_msg_SI(struct gps_device_t *session, unsigned char *buf, size_t len) { int i; + unsigned short PRN; if (len < 1) { gpsd_log(&session->context->errout, LOG_WARN, @@ -360,8 +361,43 @@ static gps_mask_t greis_msg_SI(struct gps_device_t *session, /* FIXME: check against MAXCHANNELS? */ session->gpsdata.satellites_visible = len - 1; for (i = 0; i < session->gpsdata.satellites_visible; i++) { - /* This isn't really PRN, this is USI. Do we need to convert? */ - session->gpsdata.skyview[i].PRN = getub(buf, i); + /* This isn't really PRN, this is USI. Convert it. */ + PRN = getub(buf, i); + session->gpsdata.skyview[i].PRN = PRN; + + /* fit into gnssid:svid */ + if (0 == PRN) { + /* skip 0 PRN */ + continue; + } else if ((1 <= PRN) && (37 >= PRN)) { + /* GPS */ + session->gpsdata.skyview[i].gnssid = 0; + session->gpsdata.skyview[i].svid = PRN; + } else if ((38 <= PRN) && (69 >= PRN)) { + /* GLONASS */ + session->gpsdata.skyview[i].gnssid = 6; + session->gpsdata.skyview[i].svid = PRN - 37; + } else if (70 == PRN) { + /* GLONASS, again */ + session->gpsdata.skyview[i].gnssid = 6; + session->gpsdata.skyview[i].svid = 255; + } else if ((71 <= PRN) && (119 >= PRN)) { + /* Galileo */ + session->gpsdata.skyview[i].gnssid = 2; + session->gpsdata.skyview[i].svid = PRN - 70; + } else if ((120 <= PRN) && (142 >= PRN)) { + /* SBAS */ + session->gpsdata.skyview[i].gnssid = 1; + session->gpsdata.skyview[i].svid = PRN - 119; + } else if ((193 <= PRN) && (197 >= PRN)) { + /* QZSS */ + session->gpsdata.skyview[i].gnssid = 5; + session->gpsdata.skyview[i].svid = PRN - 192; + } else if ((211 <= PRN) && (247 >= PRN)) { + /* BeiDou */ + session->gpsdata.skyview[i].gnssid = 3; + session->gpsdata.skyview[i].svid = PRN - 210; + } } session->driver.greis.seen_si = true; |