qmk_firmware/keyboards/sixshooter/keymaps/default/keymap.c

/* Copyright 2018 QMK Community
 *
 * 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 QMK_KEYBOARD_H

#define _BL 0
#define _FN 1

// Define keyboard specific keycodes for controlling on/off for all LEDs as they
// are all on different pins with this PCB, rather than a single backlight pin
enum custom_keycodes {
    SS_LON = SAFE_RANGE,
    SS_LOFF
};
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Base Layer: Media Keys
     * ,-----------.
     * |FN | V-| V+|
     * |---+---+---|
     * |Prv|Ply|Nxt|
     * `-----------'
     */
  [_BL] = LAYOUT( /* Base */
    MO(_FN), KC_VOLD, KC_VOLU, \
    KC_MPRV, KC_MPLY, KC_MNXT  \
  ),
    /* FN Layer: LED control
     * ,-----------.
     * |FN | V-| V+|
     * |---+---+---|
     * |Prv|Ply|Nxt|
     * `-----------'
     */
  [_FN] = LAYOUT(
    KC_TRNS, SS_LON, SS_LOFF, \
    KC_NO,   KC_NO,  KC_NO
  ),
};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
	// Put your per-action keyboard code here.
	// Runs for every action, just before processing by the firmware.
  if (record->event.pressed) {

    // Check for custom keycodes for turning on and off LEDs
    switch(keycode) {
      case SS_LON:
        sixshooter_led_all_on();
        return false;
      case SS_LOFF:
        sixshooter_led_all_off();
        return false;
    }
  }
  return true;
};

void matrix_init_user(void) {
  // Default all LEDs to on
  sixshooter_led_all_on();
}