AMiRo-OS

Makefile structure revised:
- Module specific tests nor come with individual makefiles, which include the general test code.
- Board configuration (e.g. connected breakout module) can now be set in Makefile or via CLI.

Merge branch 'master' into SSSPwoBLT

1. Conflicts:
2. core/inc/aos_confcheck.h
3. core/inc/aos_system.h
4. core/src/aos_main.cpp
5. core/src/aos_system.c
6. modules/DiWheelDrive_1-1/module.h
7. modules/DiWheelDrive_1-2/module.h
8. modules/LightRing_1-0/module.h
9. modules/LightRing_1-2/module.h...

modified the structure of board.h and .c files to be consistent with ChibiOS

Shell is not implicitly enabled when tests are activated anymore.

Several fixed to the recent SSSP overhaul

Fixed a compatibility issue introduced by the recent modifications to the Makefiles

aosSysGetStdIntCallback() function renamed to aosSysGetStdExtiCallback()

QEI driver patch enhanced.
The MODULE_INIT_HAL_EXTRA() hook is not required anymore for the DiWheelDrive modules.

Introduced optional CH_CFG_ST_TIMEDELTA definition per module.
If no value is specified by the module, a conservative fallback of 1000µs is set.

Updated to AMiRo-LLD 1.1:
- Implementation of periphAL has been modified accordingly.
- GPIOs are not encoded as port/pad tuple, but as lines
- Some unittests have been updated due to driver changes.

removed some redundant GCC optimization parameters

Changed the AMiRo-OS version back to 2.0.1 (from 2.1.0).
This was done, because an increment in the minor version implies an API change, which is not present yet.

updated all aosconf.h files to AMiRo-OS 2.1

reduced the CH_CFG_ST_TIMEDELTA value to 20us as it seems to be working fine with the new ChibiOS

Slightly optimized all Makefiles

All preprocessor directives without arguments (e.g. #endif) are now followed by a comment, indicating where it belongs to (e.g. the preceding #if).

Enhanced the periphAL debug implementation to apply to tze new AMiRo-OS debug API

Introduced the CORTEX_ENABLE_WFI_IDLE flag in all chconf.h files, so the MCUs will enter sleep mode whenever the system is idle.

Enhanced and fixed several module specific files.

Changed all header guards so they will not use unserscores as pre- and postfix.

Optimized the #include tree

Introduced a macro AOS_IOEVENT_FLAG() in aos_types.h.
This macro acts similar to EVENT_MASK() and should help to simplify development.
The new macro was applied to existing code wherever possible.

Added C++ system calls to the build toolchain in order to make AMiRo-OS fully compatible with C++ code.

Enhanced the main thread IO event configuration.
Therefore a new macro AMIROOS_CFG_MAIN_LOOP_IOEVENT_MASK has been introduced.

Removed modules/flash.mk since flashing procedures highly depend on hardware.

Introduced a switch to completely disable SSSP (thanks to S. Welzel)

Minor fixes and enhancements.

Removed the extension of the optional BUILDDIR variable in the module makefiles.

Minor optimizations regarding memory utilization.

All contents of the os/ folder has been moved one directory up.

Review of the QEI driver patch (minor changes).

Merge branch 'master' of http://openresearch.cit-ec.de/git/amiro-os.amiro-os

Doxygen file documentation and modules.

Updated Chibi-OS to version 18.2 and adapted AMiRo-OS accordingly:
- Switched to new time conversion macros
- Use PAL for interrupts instead of the EXT Driver
- Use new kernel tests

RTC date/time is now synchronized on startup from the SSSP master module.
Further changes:
- several enhancements to the newly introduced module stack initialization procedure
- several minor enhancements to core functionality

Several enhancements to memory structure, naming and code quality.
AMiRo-OS is now prepared so the SSSP startup stage 3 (module stack initialization can be implemented).

Introduced the capability to set and get a date&time value via the shell.

modified all relevant makefiles to adopt the new file structure