Main UAVCAN protocol handling and ESC updates run on the same thread/wq as
before. There are 2 WorkItems for separate scheduling of the 2, so that
ESC updates run in sync with actuator_control updates. UAVCAN is scheduled
at a fixed rate of 3ms (previously the poll timeout) and on each UAVCAN
bus event.
This leads to roughly the same behavior as before. CPU & RAM usage are
pretty much the same (tested on Pixhawk 4).
Testing done: Motors still work (with feedback), param changes and a
UAVCAN optical flow sensor.
- move most orb to uORB::Publication and uORB::Subscription
- update legacy message handling (warn to PX4_INFO, PX4_WARN, PX4_ERR)
- add perf counters
- sensors/mag support newer `uavcan::equipment::ahrs::MagneticFieldStrength2` message
- sensors/gps support `uavcan::equipment::gnss::Auxiliary` for hdop and vdop
- sensors delete obsolete ioctl and read methods
- use PublicationMulti for actuator_outputs and esc_reports (to coexist with other output modules)
- add GNSS parameter metadata (parameters_injected.xml)
Daniel Agar