qmk_firmware/keyboards/atomic/keymaps/twolayer.c

#include "atomic.h"

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

/* QWERTY - MIT ENHANCED / GRID COMPATIBLE
 * .---------------------------------------------------------------------------------------------------------------------- 2u ------------.
 * | ESC    | 1      | 2      | 3      | 4      | 5      | 6      | 7      | 8      | 9      | 0      | -      | =      | XXXXXX . BACKSP |
 * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
 * | TAB    | Q      | W      | E      | R      | T      | Y      | U      | I      | O      | P      | [      | ]      | \      | DEL    |
 * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ------------+--------|
 * | LCTRL1 | A      | S      | D      | F      | G      | H      | J      | K      | L      | ;      | '      | XXXXXX . ENTER  | PG UP  |
 * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ---------------------+--------|
 * | LSHIFT | Z      | X      | C      | V      | B      | N      | M      | ,      | .      | /      | XXXXXX . RSHIFT | UP     | PG DN  |
 * |--------+--------+--------+--------+--------+- 6.25u ---------+--------+--------+--------+--------+-----------------+--------+--------|
 * | BRITE  | LALT   |  FN    |               XXXXXX . SPACE                        | RCTRL  | RALT   | FN     | LEFT   | DOWN   | RIGHT  |
 * '--------------------------------------------------------------------------------------------------------------------------------------'
 */
	
 [0] = { /* QWERTY */
  { KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_BSPC  },
  { KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS, KC_DEL   },
  { KC_LCTL,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_ENT,  KC_ENT,  KC_PGUP  },
  { KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_RSFT, KC_UP,   KC_PGDN  },
  { M(0),    KC_ALT, MO(1), KC_SPC, KC_SPC, KC_SPC,  KC_SPC,  KC_SPC,  KC_SPC, KC_RCTL, KC_RALT, MO(1), KC_LEFT, KC_DOWN, KC_RGHT  },
 },


/* FUNCTION
 * .---------------------------------------------------------------------------------------------------------------------- 2u ------------.
 * | GRV    | F1     | F2     | F3     | F4     | F5     | F6     | F7     | F8     | F9     | F10    | F11    | F12    | XXXXXX .        |
 * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
 * | SCR LK | F13    | F14    | F15    | F16    | F17    | F18    | F19    | F20    | F21    | F22    | F23    | F24    | PAUSE  | PR SCR |
 * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ------------+--------|
 * | CAP LK | MS BT5 | MS BT4 | MS BT3 | MS BT2 | SLOW M | FAST M | NEXT   | VOL+   | VOL-   | PLAY   |        | XXXXXX .        | WHEEL+ |
 * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+- 2u ---------------------+--------|
 * | NUM LK |        |        |        |        |        |        |        | INSERT |   END1 |  HOME  | XXXXXX .        | MOUS U | WHEEL- |
 * |--------+--------+--------+--------+--------+- 6.25 ------------+--------+--------+------+--------+-----------------+--------+--------|
 * |        |        |   FN   |                  XXXXXX . MS BT1                      |      |        |   FN   | MOUS L | MOUS D | MOUS R |
 * '--------------------------------------------------------------------------------------------------------------------------------------'
 */
 
 [1] = { /* FUNCTION LAYER*/
  { KC_GRV, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  ___T___, ___T___  },
  { KC_SLCK, KC_F13,  KC_F14,  KC_F15,  KC_F16,  KC_F17,  KC_F18,  KC_F19,  KC_F20,  KC_F21,  KC_F22,  KC_F23,  KC_F24,  KC_PAUS, KC_PSCR  },
  { KC_CAPS, KC_BTN5, KC_BTN4, KC_BTN3, KC_BTN2, KC_ACL0, KC_ACL2, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY, _______, ___T___, ___T___, KC_WH_U  },
  { KC_NLCK, _______, _______, _______, _______, _______, _______, _______, KC_INSERT, KC_END, KC_HOME, ___T___, ___T___, KC_MS_U, KC_WH_D  },
  { _______, _______, MO(1), _______, _______, KC_BTN1, KC_BTN1, _______, _______, _______, _______, MO(1), KC_MS_L, KC_MS_D, KC_MS_R  },
 },
};

const uint16_t PROGMEM fn_actions[] = {
    [1] = ACTION_LAYER_MOMENTARY(1),
    [2] = ACTION_LAYER_MOMENTARY(1),
};

const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
{
  // MACRODOWN only works in this function
      switch(id) {
        case 0:
          if (record->event.pressed) {
            register_code(KC_RSFT);
            #ifdef BACKLIGHT_ENABLE
              backlight_step();
            #endif
          } else {
            unregister_code(KC_RSFT);
          }
        break;
      }
    return MACRO_NONE;
};