Instead of requiring every program to specify the HAL related modules,
let the build system do it (in practice everything we compiled depended
on HAL anyway). This allow including only the necessary files in the
compilation.
The switching between different AP_HAL was happening by giving different
definitions of AP_HAL_BOARD_DRIVER, and the programs would use it to
instantiate.
A program or library code would have to explicitly include (and depend)
on the concrete implementation of the HAL, even when using it only via
interface.
The proposed change move this dependency to be link time. There is a
AP_HAL::get_HAL() function that is used by the client code. Each
implementation of HAL provides its own definition of this function,
returning the appropriate concrete instance.
Since this replaces the job of AP_HAL_BOARD_DRIVER, the definition was
removed.
The static variables for PX4 and VRBRAIN were named differently to avoid
shadowing the extern symbol 'hal'.
Surround calls to rcout->write() with rcout->cork() and rcout->push().
If the RCOutput implementation allows the writes are grouped and only
sent together to the underlying hardware.
This was only used for supporting APM1. The removal was mostly automatic
with:
sed -i 's/pgm_read_byte(&_motor_to_channel_map\[\([^]]*\)\])/\1/g' libraries/AP_Motors/*.cpp
sed -i 's/_motor_to_channel_map\[\([^]]*\)\]/\1/g' libraries/AP_Motors/*.cpp
And then remove references to MOTOR_TO_CHANNEL_MAP and
_motor_to_channel_map and make sure the variable used in shifts is
unsigned
This commit changes the way libraries headers are included in source files:
- If the header is in the same directory the source belongs to, so the
notation '#include ""' is used with the path relative to the directory
containing the source.
- If the header is outside the directory containing the source, then we use
the notation '#include <>' with the path relative to libraries folder.
Some of the advantages of such approach:
- Only one search path for libraries headers.
- OSs like Windows may have a better lookup time.
Caio Marcelo de Oliveira Filho
Lucas De Marchi
Andrew Tridgell
Randy Mackay
Robert Lefebvre
Fredrik Hedberg
Leonard Hall
Gustavo Jose de Sousa