qmk_firmware/keyboards/crkbd/keymaps/markstos/keymap.c

// Copyright 2022 Mark Stosberg (@markstos)
// SPDX-License-Identifier: GPL-2.0-or-later
#include QMK_KEYBOARD_H

enum custom_keycodes {
  QWERTY = SAFE_RANGE,
  LOWER,
  RAISE,
  FUNC,
  BACKLIT
};

enum combos {
  DF_DASH,
  JK_ESC
};

const uint16_t PROGMEM df_combo[] = {KC_D, KC_F, COMBO_END};
const uint16_t PROGMEM jk_combo[] = {KC_J, KC_K, COMBO_END};

combo_t key_combos[COMBO_COUNT] = {
  // Add commonly used dash to home row
  [DF_DASH]    = COMBO(df_combo, KC_MINS),
  // For Vim, put Escape on the home row
  [JK_ESC]    = COMBO(jk_combo, KC_ESC),
};

// 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 custom_layers {
  _QWERTY,
  _LOWER,
  _RAISE,
  _FUNC,
};

// For _QWERTY layer
#define OSM_LCTL OSM(MOD_LCTL)
#define OSM_AGR  OSM(MOD_RALT)
#define OSL_FUN  OSL(_FUNC)
#define GUI_ENT  GUI_T(KC_ENT)
#define LOW_TAB  LT(_LOWER, KC_TAB)
#define RSE_BSP  LT(_RAISE, KC_BSPC)
#define OSM_SFT  OSM(MOD_LSFT) 


// For _RAISE layer
#define CTL_ESC  LCTL_T(KC_ESC)

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [_QWERTY] = LAYOUT(
  //,-----------------------------------------------------.                    ,-----------------------------------------------------.
       KC_TAB,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                     KC_Y    ,KC_U    ,KC_I    ,KC_O    ,KC_P    ,KC_DEL  ,
  //|--------+--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------+--------|
 OSM(MOD_LALT),   KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                     KC_H    ,KC_J    ,KC_K    ,KC_L    ,KC_QUOT ,OSM_AGR ,
  //|--------+--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------+--------|
 OSM(MOD_LSFT),   KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,                     KC_N    ,KC_M    ,KC_COMM ,KC_DOT  ,KC_SLSH ,OSL_FUN ,
  //|--------+--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------+--------|
                                         OSM_LCTL, GUI_ENT, LOW_TAB,   RSE_BSP ,KC_SPC  ,OSM_SFT
                                      //`--------------------------'  `--------------------------'
  ),

  [_LOWER] = LAYOUT(
  //,-----------------------------------------------------.                    ,-----------------------------------------------------.
      _______, KC_EXLM, KC_AT,  KC_HASH, KC_DLR,  KC_PERC,                      KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______ ,
  //|--------+--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------+--------|
      _______, KC_1,    KC_2,   KC_3,    KC_4,    KC_5,                         KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    _______ ,
  //|--------+--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------+--------|
      _______, XXXXXXX , KC_TILD,KC_GRV, KC_LBRC, KC_LCBR,                       KC_RCBR, KC_RBRC, KC_COMM,KC_DOT,  KC_SLSH, _______ ,
  //|--------+--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------+--------|
                                          KC_TRNS,  KC_TRNS, LOWER,    KC_TRNS, KC_TRNS, KC_COLON
                                      //`--------------------------'  `--------------------------'
    ),


  [_RAISE] = LAYOUT(
  //,-----------------------------------------------------.                    ,-----------------------------------------------------.
      _______, KC_DEL , XXXXXXX, KC_UNDS, KC_PLUS, KC_PGUP,                      XXXXXXX, XXXXXXX, XXXXXXX, KC_BSLS, KC_PIPE,_______ ,
  //|--------+--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------+--------|
      _______, KC_HOME, KC_END , KC_MINS, KC_EQL , KC_PGDN,                      KC_LEFT, KC_DOWN, KC_UP  , KC_RGHT, KC_APP ,_______ ,
  //|--------+--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------+--------|
      _______, KC_LT  , KC_GT  , KC_COPY, KC_PSTE, KC_SCLN,                      KC_MPLY, KC_MPRV, KC_MNXT, KC_VOLD, KC_VOLU,_______ ,
  //|--------+--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------+--------|
                                          CTL_ESC, KC_TRNS, XXXXXXX,    RAISE  , KC_TRNS, KC_TRNS
                                      //`--------------------------'  `--------------------------'
  ),

  [_FUNC] = 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 , XXXXXXX, XXXXXXX, XXXXXXX,                     XXXXXXX , XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,_______ ,
  //|--------+--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------+--------|
      _______, KC_CAPS, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                     XXXXXXX , XXXXXXX, XXXXXXX, XXXXXXX, QK_BOOT,XXXXXXX ,
  //|--------+--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------+--------|
                                          XXXXXXX, XXXXXXX, XXXXXXX,    XXXXXXX, FUNC   , XXXXXXX
                                      //`--------------------------'  `--------------------------'
  )
};

uint16_t get_tapping_term(uint16_t keycode, keyrecord_t *record) {
    switch (keycode) {
      case LT(_RAISE, KC_BSPC):
            return TAPPING_TERM_THUMB;
      case LT(_LOWER, KC_TAB):
            return TAPPING_TERM_THUMB;
      default:
            return TAPPING_TERM;
    }
}