AMiRo-OS

Major SSSP overhaul:
- SSSP no works even without Bootloader (AMiRo-OS implements startup and shutdown phases)
- MSI and calendar synchronization are currently not available (WIP)
- lots of minor changes

Makefiles revised
AMiRo-LLD updated

aosSysGetStdIntCallback() function renamed to aosSysGetStdExtiCallback()

Updated AMiRo-BLT submodule and removed any code which was meant to ignore PAL initialization.
Since all periphery (AHBx, APBx) is reset on startup of ChibiOS, any previous pin configuration is lost and can not be recovered in a trivial way.

Signed-off-by: Thomas Schöpping <tschoepp@cit-ec.uni-bielefeld.de>

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.

Introduced PowerManagement v1.2 module.
Also adapted PowerManagement v1.1 and ADC unit test.

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

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).

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

Updated AMiRo-LLD and adapted the MPU6050 unit test accordingly.
NOTE: Unfortunately, the unit test fails =(

set the C standard to C17 (ISO), although this does not make any difference according to GCC documentation

updated AMiRo-LLD and applied all required changes to AMiRo-OS and all modules.

Enhanced the #include tree. 'amiroos.h' is now the central header, which includes all dependencies.

Makefiles slightly enhanced

Enhanced the AMiRo-OS configuration: When AMIROOS_CFG_TESTS_ENABLE is set, the shell is enabled implicitely by AMiRo-OS.
Before, this logic was handled in the aosconf.h file.

All board.mk files have been integrated into the module Makefiles.

Added new periphery hardware (PCAL6524 GPIO extender and AT42QT1050 touch sensor) to the PowerManagement, including unit tests.

PowerManagement: fixed incorrect configuration for event propagation

PowerManagement: improved macros for selecting RAM regions

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.

Some minor fixes and enhancements.
Most importantly, the expected jitter (CH_CFG_ST_TIMEDELTA) was increased form 20 to 50us.

Reworked linker scripts.
the os/hal/ directory was removed completely.
Each module now has its own linker script, which again includes the fundamental liner scripts within ChibiOS.
All makefiles have been adapted accordingly.

optimized fan out calculation of masks for GPIO initialization.

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).

prepended several macros with the 'AOS_' prefix

moved the /os/modles directory to /modules