* Extensible split data sync capability through transactions.
- Split common transport has been split up between the transport layer
and data layer.
- Split "transactions" model used, with convergence between I2C and
serial data definitions.
- Slave matrix "generation count" is used to determine if the full slave
matrix needs to be retrieved.
- Encoders get the same "generation count" treatment.
- All other blocks of data are synchronised when a change is detected.
- All transmissions have a globally-configurable deadline before a
transmission is forced (`FORCED_SYNC_THROTTLE_MS`, default 100ms).
- Added atomicity for all core-synced data, preventing partial updates
- Added retries to AVR i2c_master's i2c_start, to minimise the number of
failed transactions when interrupts are disabled on the slave due to
atomicity checks.
- Some keyboards have had slight modifications made in order to ensure
that they still build due to firmware size restrictions.
* Fixup LED_MATRIX compile.
* Parameterise ERROR_DISCONNECT_COUNT.
* Eliminate separate slave loop
Both master and slave run the standard keyboard_task main loop now.
* Refactor i2c/serial specific code
Simplify some of the preprocessor mess by using common function names.
* Fix missing #endif
* Move direct pin mapping support from miniaxe to split_common
For boards with more pins than sense--sorry, switches.
* Reordering and reformatting only
* Don't run matrix_scan_quantum on slave side
* Clean up the offset/slaveOffset calculations
* Cut undebounced matrix size in half
* Refactor debouncing
* Minor fixups
* Split split_common transport and debounce code into their own files
Can now be replaced with custom versions per keyboard using
CUSTOM_TRANSPORT = yes and CUSTOM_DEBOUNCE = yes
* Refactor debounce for non-split keyboards too
* Update handwired/xealous to build using new split_common
* Fix debounce breaking basic test
* Dodgy method to allow a split kb to only include one of i2c/serial
SPLIT_TRANSPORT = serial or SPLIT_TRANSPORT = i2c will include only
that driver code in the binary.
SPLIT_TRANSPORT = custom (or anything else) will include neither, the
keyboard must supply it's own code
if SPLIT_TRANSPORT is not defined then the original behaviour (include
both avr i2c and serial code) is maintained.
This could be better but it would require explicitly updating all the
existing split keyboards.
* Enable LTO to get lets_split/sockets under the line
* Add docs for SPLIT_TRANSPORT, CUSTOM_MATRIX, CUSTOM_DEBOUNCE
* Remove avr-specific sei() from split matrix_setup
Not needed now that slave doesn't have a separate main loop.
Both sides (on avr) call sei() in lufa's main() after exiting
keyboard_setup().
* Fix QUANTUM_LIB_SRC references and simplify SPLIT_TRANSPORT.
* Add comments and fix formatting.
