altos: Use 0x80 to indicate valid state value in the GPS location packet

[fw/altos] / src / kernel / ao_telemetry.h

diff --git a/src/kernel/ao_telemetry.h b/src/kernel/ao_telemetry.h
index fe07c2af490d14368a994012815d81ec869ad159..050bbf726a09c7d338ae2e31306336c26b760204 100644 (file)
--- a/src/kernel/ao_telemetry.h
+++ b/src/kernel/ao_telemetry.h
@@ -93,6 +93,8 @@ struct ao_telemetry_configuration {
 #define AO_GPS_MODE_MANUAL             'M'
 #define AO_GPS_MODE_SIMULATED          'S'
 
+#define AO_GPS_STATE_VALID             0x80
+
 struct ao_telemetry_location {
        uint16_t        serial;         /*  0 */
        uint16_t        tick;           /*  2 */
@@ -115,7 +117,7 @@ struct ao_telemetry_location {
        uint16_t        ground_speed;   /* 26 cm/s */
        int16_t         climb_rate;     /* 28 cm/s */
        uint8_t         course;         /* 30 degrees / 2 */
-       uint8_t         unused[1];      /* 31 */
+       uint8_t         state;          /* 31 flight state */
        /* 32 */
 };