qmk_firmware_custom/keyboards/contra/keymaps/dana/keymap.c

// This is the canonical layout file for the Quantum project. If you want to add another keyboard,
// this is the style you want to emulate.

#include QMK_KEYBOARD_H

extern keymap_config_t keymap_config;

// Fillers to make layering more clear
#define _______ KC_TRNS
#define XXXXXXX KC_NO

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

  /* Qwerty
   * ,-----------------------------------------------------------------------------------.
   * | `    |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
   * |------+------+------+------+------+-------------+------+------+------+------+------|
   * | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
   * |------+------+------+------+------+------|------+------+------+------+------+------|
   * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Shift |
   * |------+------+------+------+------+------+------+------+------+------+------+------|
   * | Brite| Ctrl | Alt  | Cmd  |Lower |    Space    |Raise | Enter| Cmd  |  Alt |Ctrl  |
   * `-----------------------------------------------------------------------------------'
   */
  [0] = LAYOUT_ortho_4x12(
      MI_C_4, MI_Cs_4, MI_D_4, MI_Ds_4, MI_E_4, MI_F_4, MI_Fs_4, MI_G_4, MI_Gs_4, MI_A_4, MI_As_4, MI_B_4,
      MI_C_3, MI_Cs_3, MI_D_3, MI_Ds_3, MI_E_3, MI_F_3, MI_Fs_3, MI_G_3, MI_Gs_3, MI_A_3, MI_As_3, MI_B_3,
      MI_C_2, MI_Cs_2, MI_D_2, MI_Ds_2, MI_E_2, MI_F_2, MI_Fs_2, MI_G_2, MI_Gs_2, MI_A_2, MI_As_2, MI_B_2,
      MI_C_1, MI_Cs_1, MI_D_1, MI_Ds_1, MI_E_1, MI_F_1, MI_Fs_1, MI_G_1, MI_Gs_1, MI_A_1, MI_As_1, MI_B_1
  )

};