From c7c4937eef9cb34b73e765390b842282ad9f0544 Mon Sep 17 00:00:00 2001 From: James Churchill Date: Tue, 5 Mar 2019 01:44:46 +1000 Subject: Clean up debounce a bit (#5255) --- quantum/debounce/sym_g.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 quantum/debounce/sym_g.c (limited to 'quantum/debounce/sym_g.c') diff --git a/quantum/debounce/sym_g.c b/quantum/debounce/sym_g.c new file mode 100644 index 0000000000..c8ab34e1a0 --- /dev/null +++ b/quantum/debounce/sym_g.c @@ -0,0 +1,57 @@ +/* +Copyright 2017 Alex Ong +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 2 of the License, or +(at your option) any later version. +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. +You should have received a copy of the GNU General Public License +along with this program. If not, see . +*/ + +/* +Basic global debounce algorithm. Used in 99% of keyboards at time of implementation +When no state changes have occured for DEBOUNCE milliseconds, we push the state. +*/ +#include "matrix.h" +#include "timer.h" +#include "quantum.h" +#ifndef DEBOUNCE + #define DEBOUNCE 5 +#endif + +void debounce_init(uint8_t num_rows) {} +static bool debouncing = false; + +#if DEBOUNCE > 0 +static uint16_t debouncing_time; +void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) +{ + if (changed) { + debouncing = true; + debouncing_time = timer_read(); + } + + if (debouncing && timer_elapsed(debouncing_time) > DEBOUNCE) { + for (int i = 0; i < num_rows; i++) { + cooked[i] = raw[i]; + } + debouncing = false; + } +} +#else //no debouncing. +void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) +{ + for (int i = 0; i < num_rows; i++) { + cooked[i] = raw[i]; + } +} +#endif + +bool debounce_active(void) { + return debouncing; +} + -- cgit v1.2.3