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-rw-r--r--users/stanrc85/rgb_timeout.c62
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diff --git a/users/stanrc85/rgb_timeout.c b/users/stanrc85/rgb_timeout.c
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+/*
+Copyright 2021 Stanrc85
+
+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/>.
+*/
+#include "stanrc85.h"
+
+// Backlight timeout feature
+// Modified from https://www.reddit.com/r/MechanicalKeyboards/comments/ix65z0/looking_for_qmk_led_idle_timeout_info/g64yov7/
+#define BACKLIGHT_TIMEOUT 10 // in minutes
+static uint16_t idle_timer = 0;
+static uint8_t halfmin_counter = 0;
+static bool led_on = true;
+static bool rgb_on = true;
+static bool rgb_was_on = false;
+
+void matrix_scan_user(void) {
+ // idle_timer needs to be set one time
+ if (idle_timer == 0) idle_timer = timer_read();
+ if ( (led_on && timer_elapsed(idle_timer) > 30000) || (rgb_on && timer_elapsed(idle_timer) > 30000)) {
+ halfmin_counter++;
+ idle_timer = timer_read();
+ }
+
+ if ( (led_on && halfmin_counter >= BACKLIGHT_TIMEOUT * 2) || (rgb_on && halfmin_counter >= BACKLIGHT_TIMEOUT * 2)) {
+ if(rgblight_is_enabled()) {
+ rgb_was_on = true;
+ rgblight_disable_noeeprom();
+ led_on = false;
+ rgb_on = false;
+ } else {
+ rgb_was_on = false;
+ }
+ halfmin_counter = 0;
+ }
+};
+
+bool process_record_keymap(uint16_t keycode, keyrecord_t *record) {
+ if (record->event.pressed) {
+ if (led_on == false || rgb_on == false ) {
+ if (rgb_was_on) {
+ rgblight_enable_noeeprom();
+ led_on = true;
+ rgb_on = true;
+ }
+ }
+ idle_timer = timer_read();
+ halfmin_counter = 0;
+ }
+ return true;
+}