qmk-firmware/keyboards/jd40/keymaps/default/keymap.c

#include "jd40.h"
#include "action_layer.h"

#define _BL 0
#define _AL 1
#define _FL 2
#define _UL 3

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
	[_BL] = KEYMAP(
  F12,  Q,    W,    E,    R,    T,    Y,    U,    I,    O,    P,   BSPC,
  TAB,  A,    S,    D,    F,    G,    H,    J,    K,    L,    ENT,
  LSFT, Z,    X,    C,    V,    B,    N,    M,    COMM, UP, DOT,
  LCTL, LGUI, LALT, FN0,  SPC,  SPC,  FN0,  LEFT,  DOWN, RIGHT ),
  
	[_AL] = KEYMAP(
  GRV,   F1,   F2,   F3,   F4,   F5,   F6,   F7,   F8,   F9,  F10,  DEL,
  CAPS, 1,    2,    3,    4,    5,    6,    7,    8,    9,    0,
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, SCLN, PGUP, QUOT,
  TRNS, TRNS, TRNS, TRNS, FN3,  FN3,  TRNS, HOME, PGDN, END ),

	[_FL] = KEYMAP(
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS ),
   
	[_UL] = KEYMAP(
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
  TRNS, FN4,  FN5,  FN11, FN10, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS,
  TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS, TRNS ),
};

enum function_id {
    RGBLED_TOGGLE,
    RGBLED_STEP_MODE,
    RGBLED_INCREASE_HUE,
    RGBLED_DECREASE_HUE,
    RGBLED_INCREASE_SAT,
    RGBLED_DECREASE_SAT,
    RGBLED_INCREASE_VAL,
    RGBLED_DECREASE_VAL,
    SHIFT_ESC, 
};

const uint16_t PROGMEM fn_actions[] = {
    [0]  = ACTION_LAYER_MOMENTARY(1),  // Momentary Fn overlay
    [1]  = ACTION_LAYER_TOGGLE(2),     // Toggle Arrow Layer overlay
    [2]  = ACTION_LAYER_TAP_KEY(2, KC_CAPS), // Tap to toggle caps lock and hold to activate function layer
    [3]  = ACTION_LAYER_TOGGLE(3),     // Toggle Underglow Layer overlay
    [4]  = ACTION_FUNCTION(RGBLED_TOGGLE), //Turn on/off underglow
    [5]  = ACTION_FUNCTION(RGBLED_STEP_MODE), // Change underglow mode
    [6]  = ACTION_FUNCTION(RGBLED_INCREASE_HUE),
    [7]  = ACTION_FUNCTION(RGBLED_DECREASE_HUE),
    [8]  = ACTION_FUNCTION(RGBLED_INCREASE_SAT),
    [9]  = ACTION_FUNCTION(RGBLED_DECREASE_SAT),
    [10] = ACTION_FUNCTION(RGBLED_INCREASE_VAL),
    [11] = ACTION_FUNCTION(RGBLED_DECREASE_VAL),
    [12] = ACTION_FUNCTION(SHIFT_ESC),
};

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);
          } else {
            unregister_code(KC_RSFT);
          }
        break;
      }
    return MACRO_NONE;
};

void matrix_scan_user(void) {

// Layer LED indicators
// ESC led on when in function layer, WASD cluster leds enabled when on arrow cluster
    uint32_t layer = layer_state;
    if (layer & (1<<1)) {
        //gh60_wasd_leds_on();
    } else {
        //gh60_wasd_leds_off();
    }

    if (layer & (1<<2)) {
        //gh60_esc_led_on();
    } else {
        //gh60_esc_led_off();
    }
};

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

void action_function(keyrecord_t *record, uint8_t id, uint8_t opt) {
  switch (id) {
    case RGBLED_TOGGLE:
      //led operations
      if (record->event.pressed) {
        rgblight_toggle();
        }
        break;
    case RGBLED_INCREASE_HUE:
      if (record->event.pressed) {
        rgblight_increase_hue();
        }
        break;
    case RGBLED_DECREASE_HUE:
      if (record->event.pressed) {
        rgblight_decrease_hue();
        }
        break;
    case RGBLED_INCREASE_SAT:
      if (record->event.pressed) {
        rgblight_increase_sat();
        }
        break;
    case RGBLED_DECREASE_SAT:
      if (record->event.pressed) {
        rgblight_decrease_sat();
        }
        break;
    case RGBLED_INCREASE_VAL:
        if (record->event.pressed) {
          rgblight_increase_val();
        }
        break;
    case RGBLED_DECREASE_VAL:
        if (record->event.pressed) {
          rgblight_decrease_val();
        }
        break;
    case RGBLED_STEP_MODE:
        if (record->event.pressed) {
          rgblight_step();
        }
        break;
    static uint8_t shift_esc_shift_mask;
    // Shift + ESC = ~
    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;
    }
};