"Applications with low acceleration and speed, e.g. how a pedestrian
would move. Low acceleration assumed. MAX Altitude [m]: 9000, MAX
Velocity [m/s]: 30, MAX Vertical Velocity [m/s]: 20, Sanity check type:
Altitude and Velocity, Max Position Deviation: Small"
size to work with Glonass MSG-SVINFO packets. Skip data from packets
that are too large to process without attempting to process a large
payout as packet data. Ignore GPS presence check when enabling
passthrough mode so that it is possible to configure a GPS unit via the
FC without the GPS unit actually having communicated to the FC first.
enabled/disabled via cli (disabled by default now). Fix missing rate
configuration for UBLOX SVINFO which would have resulted in missing
satallite counts.
Each flag was previously a whole byte, now all of the flags only take up
4 bytes as they are represented by bit masks.
This is cleaner because the different kind of flags are now separated.
Additionally this changes the behaviour of arming slightly. When using
a switch to arm the aircraft will not arm unless the switch has been in
the off state once. This prevents arming if you power the aircraft with
a low throttle and the switch in the on position.
gps.c now only has code that deals with gps hardware, state and
messaging.
navigation.c now only has code dealing with flight
navigation/waypoints/home/hold/etc
It was noticed that GPS startup time increased when the change was made
from using EGNOS by default to using AUTO by default.
The default is still AUTO but faster GPS startup times may be achieved
by telling the GPS receiver what region you are in.
This also removes more unfinished MTK gps provider support.
Extracted NMEA and UBLOX code from the GPS hardware init method into
separate methods. Introduced a state for changing baud rate rather than
re-using state_position.
