qmk_firmware/keyboards/handwired/freoduo/keymaps/default/keymap.c

#include QMK_KEYBOARD_H

// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
enum layers {
    _QWERTY,
    _LOWER,
    _RAISE,
    _ADJUST,
};

enum custom_keycodes {
  LOWER = SAFE_RANGE,
  RAISE,
  ADJUST,
};

// Light all LEDs red when caps lock is active. Hard to ignore!
const rgblight_segment_t PROGMEM my_capslock_layer[] = RGBLIGHT_LAYER_SEGMENTS(
    {0, RGBLED_NUM, HSV_RED}    // Light all LEDs, starting with LED 0
);
// Light all LEDs in green when keyboard layer 1 is active
const rgblight_segment_t PROGMEM layer_lower[] = RGBLIGHT_LAYER_SEGMENTS(
    {6, 6, HSV_GREEN}
);
// Light all LEDs in blue when keyboard layer 2 is active
const rgblight_segment_t PROGMEM layer_raise[] = RGBLIGHT_LAYER_SEGMENTS(
    {6, 6, HSV_MAGENTA}
);
// Light all LEDs in yellow when keyboard layer 3 is active
const rgblight_segment_t PROGMEM layer_adjust[] = RGBLIGHT_LAYER_SEGMENTS(
    {6, 6, HSV_ORANGE}
);


// Now define the array of layers. Later layers take precedence
const rgblight_segment_t* const PROGMEM my_rgb_layers[] = RGBLIGHT_LAYERS_LIST(
    my_capslock_layer,
    layer_lower,
    layer_raise,
    layer_adjust
);

void keyboard_post_init_user(void) {
    // Enable the LED layers
    rgblight_layers = my_rgb_layers;
}

layer_state_t layer_state_set_user(layer_state_t state) {
    // Both layers will light up if both kb layers are active
    rgblight_set_layer_state(1, layer_state_cmp(state, 1));
    rgblight_set_layer_state(2, layer_state_cmp(state, 2));
    rgblight_set_layer_state(3, layer_state_cmp(state, 3));
    return state;
}

bool led_update_user(led_t led_state) {
    rgblight_set_layer_state(0, led_state.caps_lock);
    return true;
}

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

/* QWERTY
 * ,-----------------------------------------------------------------------------------.
 * |` ESC |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Del  |
 * |      |      |      |      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Enter|
 * |      |      |      |      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * | Caps |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
 * | LOWER|      |      |      |      |      |      |      |      |      |      | RAISE|
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |  Up  |  ?   |
 * |      |      |      |      |      |      |      |      |      |      |      | Shift|
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * | Ctrl |ADJUST| Alt  | GUI  |    Space    |  Backspace  | Alt  | Left |Down  |Right |
 * |      |      |      |      |             |             |      |      |      |      |
 * `-----------------------------------------------------------------------------------'
 */
[_QWERTY] = LAYOUT(
  QK_GESC,            KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL,
  KC_TAB,             KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_ENT,
  LT(_LOWER,KC_CAPS), KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, LT(_RAISE, KC_QUOT),
  KC_LSFT,            KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_UP,   RSFT_T(KC_SLSH),
  KC_LCTL,            ADJUST,  KC_LGUI, KC_LALT, KC_SPC,                    KC_BSPC, KC_RALT, KC_LEFT, KC_DOWN, KC_RGHT
),

/* LOWER
 * ,-----------------------------------------------------------------------------------.
 * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 | F12  |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |      |  Up  |      |      |      |      |   -  |   =  |   [  |   ]  |  \   |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      | Left | Down | Right|      |      |      |ISO # |ISO / |      |      |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |      |      |      |             |             |      |      |      |      |
 * `-----------------------------------------------------------------------------------'
 */
[_LOWER] = LAYOUT(
  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,
  _______, _______, KC_UP,   _______, _______, _______, _______, KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS,
  _______, KC_LEFT, KC_DOWN, KC_RGHT, _______, _______, _______, KC_NUHS, KC_NUBS, _______, _______, _______,
  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
  _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______
),

/* RAISE
 * ,-----------------------------------------------------------------------------------.
 * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 | F12  |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * | Del  |      |      |      |      |      |      |   _  |   +  |     |    \  |  |   |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |ISO ~ |ISO | |      |      |Enter |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |      |      |      |             |             |      |      |      |      |
 * `-----------------------------------------------------------------------------------'
 */
[_RAISE] = LAYOUT(
  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,     KC_F9,     KC_F10,  KC_F11,  KC_F12,
  KC_DEL,  _______, _______, _______, _______, _______, _______, KC_UNDS,   KC_PLUS,   KC_LCBR, KC_RCBR, KC_PIPE,
  _______, _______, _______, _______, _______, _______, _______, S(KC_NUHS),S(KC_NUBS),_______, _______, _______,
  _______, _______, _______, _______, _______, _______, _______, _______,   _______,   _______, _______, _______,
  _______, _______, _______, _______, _______,                   _______,   _______,   _______, _______, _______
),

/* ADJUST (LOWER + RAISE)
 * ,-----------------------------------------------------------------------------------.
 * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * | Reset|RGB Tg|RGB Md|      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |Hue Dn|Hue Up|      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |Sat Dn|Sat Up|      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |Val Dn|Val Up|      |             |             |      |      |      |      |
 * `-----------------------------------------------------------------------------------'
 */
[_ADJUST] =  LAYOUT(
  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,
  QK_BOOT  , RGB_TOG, RGB_MOD, VK_TOGG, _______, _______, _______, _______, _______, _______, _______, _______,
  _______, RGB_HUD, RGB_HUI, _______, _______, _______, _______, _______, _______, _______, _______, _______,
  _______, RGB_SAD, RGB_SAI, _______, _______, _______, _______, _______, _______, _______, _______, _______,
  _______, RGB_VAD, RGB_VAI, _______, _______,                   _______, _______, _______, _______, _______
)

};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case LOWER:
      if (record->event.pressed) {
        layer_on(_LOWER);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_LOWER);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      }
      return false;
      break;
    case RAISE:
      if (record->event.pressed) {
        layer_on(_RAISE);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_RAISE);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      }
      return false;
      break;
    case ADJUST:
      if (record->event.pressed) {
        layer_on(_ADJUST);
      } else {
        layer_off(_ADJUST);
      }
      return false;
      break;
  }
  return true;
}