qmk_firmware/tmk_core/common/avr
Simon Arlott b829a1d264
Avoid 8-bit timer overflows in debounce algorithms (#12240)
* Add fast_timer_t that is 16-bit or 32-bit based on architecture

A 16-bit timer will overflow sooner but be faster to compare on AVR.

* Avoid 8-bit timer overflows in debounce algorithms

Count down remaining elapsed time instead of trying to do 8-bit timer
comparisons.

Add a "none" implementation that is automatically used if DEBOUNCE is
0 otherwise it will break the _pk/_pr count down.

* Avoid unnecessary polling of the entire matrix in sym_eager_pk

The matrix only needs to be updated when a debounce timer expires.

* Avoid unnecessary polling of the entire matrix in sym_eager_pr

The matrix only needs to be updated when a debounce timer expires.

The use of the "needed_update" variable is trying to do what
"matrix_need_update" was added to fix but didn't work because it only
applied when all keys finished debouncing.

* Fix sym_defer_g timing inconsistency compared to other debounce algorithms

DEBOUNCE=5 should process the key after 5ms, not 6ms

* Add debounce tests
2021-06-09 17:23:21 +10:00
..
_print.h Fix USER_PRINT on avr/atsam (#12269) 2021-03-25 22:33:53 +11:00
_timer.h Avoid 8-bit timer overflows in debounce algorithms (#12240) 2021-06-09 17:23:21 +10:00
_wait.h
atomic_util.h
bootloader.c
bootloader_size.c
gpio.h Add readPort() and some API to 'tmk_core/common/*/gpio.h' (#12754) 2021-06-07 18:23:21 +09:00
pin_defs.h
printf.c
printf.mk
sleep_led.c
suspend.c Add missing LED Matrix suspend code to suspend.c (#12878) 2021-05-13 11:24:44 +10:00
timer.c
timer_avr.h
xprintf.h
xprintf.S