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authorPurdea Andrei <andrei@purdea.ro>2020-09-06 23:13:49 +0300
committerDrashna Jael're <drashna@live.com>2020-09-30 03:50:16 -0700
commitc2eaf9740bf650ac5f30a7ac318ed730a51fa5f7 (patch)
tree7602d0b5a0cb4546fd1f5ac03837ffc4b3a55d82 /quantum/debounce/sym_defer_g.c
parent303fa4f58df29f74955166468cc4413d11a79d2e (diff)
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
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diff --git a/quantum/debounce/sym_defer_g.c b/quantum/debounce/sym_defer_g.c
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+/*
+Copyright 2017 Alex Ong<the.onga@gmail.com>
+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 <http://www.gnu.org/licenses/>.
+*/
+
+/*
+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; }