From 34d5be68ca23e8beb05db9a480faef63ecc911d0 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Thu, 10 Jul 2014 17:07:48 -0700 Subject: altos: Extend GPS altitudes to at least 24 bits everywhere Telemetry gets a special 'mode' flag indicating that 24-bit data is present; log files get new data and log readers are expected to detect that via the firmware version number. Signed-off-by: Keith Packard --- src/kernel/ao_tracker.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'src/kernel/ao_tracker.c') diff --git a/src/kernel/ao_tracker.c b/src/kernel/ao_tracker.c index 9febc7f0..d9434048 100644 --- a/src/kernel/ao_tracker.c +++ b/src/kernel/ao_tracker.c @@ -36,9 +36,9 @@ ao_usb_connected(void) #endif struct gps_position { - int32_t latitude; - int32_t longitude; - int16_t altitude; + int32_t latitude; + int32_t longitude; + gps_alt_t altitude; }; #define GPS_RING 16 @@ -122,12 +122,13 @@ ao_tracker(void) { uint8_t ring; uint8_t moving = 0; + gps_alt_t altitude = AO_TELEMETRY_LOCATION_ALTITUDE(&gps_data); for (ring = ao_gps_ring_next(gps_head); ring != gps_head; ring = ao_gps_ring_next(ring)) { ground_distance = ao_distance(gps_data.latitude, gps_data.longitude, gps_position[ring].latitude, gps_position[ring].longitude); - height = gps_position[ring].altitude - gps_data.altitude; + height = gps_position[ring].altitude - altitude; if (height < 0) height = -height; @@ -153,7 +154,7 @@ ao_tracker(void) ao_log_gps_data(gps_tick, &gps_data); gps_position[gps_head].latitude = gps_data.latitude; gps_position[gps_head].longitude = gps_data.longitude; - gps_position[gps_head].altitude = gps_data.altitude; + gps_position[gps_head].altitude = altitude; gps_head = ao_gps_ring_next(gps_head); ao_mutex_put(&tracker_mutex); } @@ -203,7 +204,7 @@ ao_tracker_set_telem(void) printf ("log_started: %d\n", log_started); printf ("latitude: %ld\n", (long) gps_data.latitude); printf ("longitude: %ld\n", (long) gps_data.longitude); - printf ("altitude: %d\n", gps_data.altitude); + printf ("altitude: %ld\n", AO_TELEMETRY_LOCATION_ALTITUDE(&gps_data)); printf ("log_running: %d\n", ao_log_running); printf ("log_start_pos: %ld\n", (long) ao_log_start_pos); printf ("log_cur_pos: %ld\n", (long) ao_log_current_pos); -- cgit v1.2.3