From f7ccbfcea88e127319a4665a6c8ca67883854030 Mon Sep 17 00:00:00 2001 From: Purdea Andrei Date: Sun, 6 Sep 2020 23:13:49 +0300 Subject: quantum/debounce: rename debouncing algorithms (#9564) * quantum/debounce: rename debouncing algorithms according to Issue 8763 This is the second attempt at implementation, with no ts_ and cy_ prefixes, since those will be implemented with macros. * Debouncing documentation: Refactor, add some generic info, and merge into a single document --- quantum/debounce/sym_defer_g.c | 52 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 quantum/debounce/sym_defer_g.c (limited to 'quantum/debounce/sym_defer_g.c') diff --git a/quantum/debounce/sym_defer_g.c b/quantum/debounce/sym_defer_g.c new file mode 100644 index 0000000000..3ed9055d2a --- /dev/null +++ b/quantum/debounce/sym_defer_g.c @@ -0,0 +1,52 @@ +/* +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