keymap.c

#include "dz60.h"
#define _______ KC_TRNS

#define _BL 0
#define _FL 1
#define _SF 2

#define S_INSRT S(KC_INSERT)

#define S_ESC LT(1, KC_ESC)

#define MODS_CTRL_MASK  (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Layer 0: Base layer */
	[_BL] = LAYOUT(
		KC_GRV, 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_NO, 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,          \
		S_ESC, 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_LSFT, KC_NO, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_NO,     \
		KC_LCTL, KC_LALT, KC_LGUI, KC_SPC, KC_SPC, KC_SPC, KC_RGUI, KC_RALT, KC_NO, KC_MENU, KC_RCTL),
    /* Layer 1: Function layer */
	[_FL] = 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,                \
		S_INSRT, _______, KC_MS_U, _______, _______, KC_MPRV, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY, _______, _______, _______, RESET,     \
		_______, KC_MS_L, KC_MS_D, KC_MS_R, _______, _______, KC_LEFT, KC_DOWN, KC_UP  ,KC_RIGHT,  _______, _______, _______,           \
		MO(_SF), _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, MO(_SF), _______,   \
		_______, _______, KC_BTN1, _______, _______, _______, KC_BTN2, _______, _______, _______, _______),
    /* Layer 1: Shifted function layer */
    [_SF] = LAYOUT(
		_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,      \
		_______, RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, _______, RESET,                 \
		_______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END , _______, _______, _______,                        \
		_______, _______, BL_DEC , BL_TOGG, BL_INC , BL_STEP, _______, _______, _______, _______, _______, _______, _______, _______,               \
		_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______)
};

enum function_id {
    SHIFT_ESC,
};

const uint16_t PROGMEM fn_actions[] = {
  [0]  = ACTION_FUNCTION(SHIFT_ESC),
};

void action_function(keyrecord_t *record, uint8_t id, uint8_t opt) {
  static uint8_t shift_esc_shift_mask;
  switch (id) {
    case SHIFT_ESC:
      shift_esc_shift_mask = get_mods()&MODS_CTRL_MASK;
      if (record->event.pressed) {
        if (shift_esc_shift_mask) {
          add_key(KC_GRV);
          send_keyboard_report();
        } else {
          add_key(KC_ESC);
          send_keyboard_report();
        }
      } else {
        if (shift_esc_shift_mask) {
          del_key(KC_GRV);
          send_keyboard_report();
        } else {
          del_key(KC_ESC);
          send_keyboard_report();
        }
      }
      break;
  }
}

void led_set_user(uint8_t usb_led) {
    if (usb_led & (1 << USB_LED_CAPS_LOCK)) {
        DDRB |= (1 << 2); PORTB &= ~(1 << 2);
    } else {
        DDRB &= ~(1 << 2); PORTB &= ~(1 << 2);
    }
}