0422.c (2008B)
1 /* Copyright 2024 Vinod Chowl (@vchowl) 2 * 3 * This program is free software: you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation, either version 2.0 of the License, or 6 * (at your option) any later version. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16 17 #include QMK_KEYBOARD_H 18 19 #define LED_LAYER_0 B3 20 #define LED_LAYER_1 B4 21 #define LED_LAYER_2 B5 22 #define LED_LAYER_3 B6 23 24 #define LED_PINS_COUNT 4 25 26 static pin_t pins[LED_PINS_COUNT] = {LED_LAYER_0, LED_LAYER_1, LED_LAYER_2, LED_LAYER_3}; 27 28 // Function to turn on all LEDs 29 void turn_on_all_leds(void) { 30 for (uint8_t i = 0; i < LED_PINS_COUNT; i++) { 31 gpio_write_pin_high(pins[i]); // Turn on LED 32 } 33 } 34 35 // Function to turn off all LEDs 36 void turn_off_all_leds(void) { 37 for (uint8_t i = 0; i < LED_PINS_COUNT; i++) { 38 gpio_write_pin_low(pins[i]); // Turn off LED 39 } 40 } 41 42 void update_leds_for_layer(uint8_t layer) { 43 turn_off_all_leds(); 44 if (layer < LED_PINS_COUNT) { 45 gpio_write_pin_high(pins[layer]); 46 } 47 } 48 49 void keyboard_post_init_kb(void) { 50 for (uint8_t i = 0; i < LED_PINS_COUNT; i++) { 51 gpio_set_pin_output(pins[i]); 52 gpio_write_pin_low(pins[i]); 53 } 54 55 // Blink all LEDs 56 turn_on_all_leds(); 57 wait_ms(500); // Keep LEDs on for 500ms 58 turn_off_all_leds(); 59 60 update_leds_for_layer(0); // Update LEDs to indicate the default layer 61 keyboard_post_init_user(); 62 } 63 64 layer_state_t layer_state_set_kb(layer_state_t state) { 65 uint8_t layer = get_highest_layer(state); 66 update_leds_for_layer(layer); 67 return layer_state_set_user(state); 68 }