altoslib: Handle wide GPS altitude values in eeprom and telemetry

[fw/altos] / altoslib / AltosEepromGPS.java

diff --git a/altoslib/AltosEepromGPS.java b/altoslib/AltosEepromGPS.java
index 46a2173de6063c08211789598df215241c1178f2..482f0b5fa118348122cd814d011da7d12bea3ffa 100644 (file)
--- a/altoslib/AltosEepromGPS.java
+++ b/altoslib/AltosEepromGPS.java
@@ -37,7 +37,7 @@ public class AltosEepromGPS extends AltosEeprom {
        /* AO_LOG_GPS_TIME elements */
        public int latitude() { return data32(0); }
        public int longitude() { return data32(4); }
-       public int altitude() { return data16(8); }
+       public int altitude_low() { return data16(8); }
        public int hour() { return data8(10); }
        public int minute() { return data8(11); }
        public int second() { return data8(12); }
@@ -52,6 +52,7 @@ public class AltosEepromGPS extends AltosEeprom {
        public int hdop() { return data8(23); }
        public int vdop() { return data8(24); }
        public int mode() { return data8(25); }
+       public int altitude_high() { return data16(26); }
 
        public boolean has_seconds() { return cmd == AltosLib.AO_LOG_GPS_TIME; }
 
@@ -99,7 +100,10 @@ public class AltosEepromGPS extends AltosEeprom {
                        gps = state.make_temp_gps(false);
                        gps.lat = latitude() / 1e7;
                        gps.lon = longitude() / 1e7;
-                       gps.alt = altitude();
+                       if (state.altitude_32())
+                               gps.alt = (altitude_low() & 0xffff) | (altitude_high() << 16);
+                       else
+                               gps.alt = altitude_low();
 
                        gps.hour = hour();
                        gps.minute = minute();