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authorSimon Arlott <70171+nomis@users.noreply.github.com>2021-06-09 08:23:21 +0100
committerGitHub <noreply@github.com>2021-06-09 17:23:21 +1000
commitb829a1d2648abd0751e9d3505554547faf643425 (patch)
tree35ba811a62feffd88759d0a53c1d6353d5d6d88a /quantum/debounce.h
parentf287597c19dc926c7c28cefa32ffc3f0b4fdba7f (diff)
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
Diffstat (limited to 'quantum/debounce.h')
-rw-r--r--quantum/debounce.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/quantum/debounce.h b/quantum/debounce.h
index 9ca05c6824..5043868289 100644
--- a/quantum/debounce.h
+++ b/quantum/debounce.h
@@ -9,3 +9,5 @@ void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool
bool debounce_active(void);
void debounce_init(uint8_t num_rows);
+
+void debounce_free(void);