diff options
Diffstat (limited to 'driver_italk.c')
| -rw-r--r-- | driver_italk.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/driver_italk.c b/driver_italk.c index 0f69d077..f15363e2 100644 --- a/driver_italk.c +++ b/driver_italk.c @@ -32,11 +32,11 @@ static gps_mask_t decode_itk_utcionomodel(struct gps_device_t *, static gps_mask_t decode_itk_subframe(struct gps_device_t *, unsigned char *, size_t); +/* NAVIGATION_MSG, message id 7 */ static gps_mask_t decode_itk_navfix(struct gps_device_t *session, unsigned char *buf, size_t len) { unsigned short flags, pflags; - double eph; gps_mask_t mask = 0; if (len != 296) { @@ -76,10 +76,12 @@ static gps_mask_t decode_itk_navfix(struct gps_device_t *session, session->newdata.ecef.vy, session->newdata.ecef.vz); mask |= LATLON_SET | ALTITUDE_SET | SPEED_SET | TRACK_SET | CLIMB_SET | ECEF_SET | VECEF_SET; - eph = (double)(getles32(buf, 7 + 252) / 100.0); - /* eph is a circular error, sqrt(epx**2 + epy**2) */ - session->newdata.epx = session->newdata.epy = eph / sqrt(2); + /* this eph does not look right, badly documented. + * let gpsd_error_model() handle it + * session->newdata.eph = (double)(getles32(buf, 7 + 252) / 100.0); + */ session->newdata.eps = (double)(getles32(buf, 7 + 254) / 100.0); + /* compute epx/epy in gpsd_error_model(), not here */ #define MAX(a,b) (((a) > (b)) ? (a) : (b)) session->gpsdata.satellites_used = |