zmk/app/boards/shields/ergodash/ergodash.dtsi

/*
 * Copyright (c) 2020 The ZMK Contributors
 *
 * SPDX-License-Identifier: MIT
 */

#include <dt-bindings/zmk/matrix_transform.h>

/ {
    chosen {
        zmk,kscan = &kscan0;
        zmk,matrix-transform = &default_transform;
    };

    default_transform: keymap_transform_0 {
        compatible = "zmk,matrix-transform";
        columns = <14>;
        rows = <5>;
// Numbering based on rev 1.2 schema
// * keys that can be in different positions are denoted as MW
// * MW40 can be broken off
// | SW1  | SW5  | SW9  | SW13 | SW17 | SW21 | SW25 |      |    |      | SW25 | SW21 | SW17 | SW13 | SW9  | SW5  | SW1  |
// | SW2  | SW6  | SW10 | SW14 | SW18 | SW22 | SW26 |      |    |      | SW26 | SW22 | SW18 | SW14 | SW10 | SW6  | SW2  |
// | SW3  | SW7  | SW11 | SW15 | SW19 | SW23 | SW27 |      |    |      | SW27 | SW23 | SW19 | SW15 | SW11 | SW7  | SW3  |
// | SW4  | SW8  | SW12 | SW16 | SW20 | SW24 |      | MW28 |    | MW28 |      | SW24 | SW20 | SW16 | SW12 | SW8  | SW4  |
// | SW30 | SW31 | SW32 | MW33 | SW34 |      | MW35 | MW40 |    | MW40 | MW35 |      | SW34 | MW33 | SW32 | SW31 | SW30 |
        map = <
RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5) RC(0,6)                 RC(0,13) RC(0,12) RC(0,11) RC(0,10) RC(0,9) RC(0,8) RC(0,7)
RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5) RC(1,6)                 RC(1,13) RC(1,12) RC(1,11) RC(1,10) RC(1,9) RC(1,8) RC(1,7)
RC(2,0) RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5) RC(2,6)                 RC(2,13) RC(2,12) RC(2,11) RC(2,10) RC(2,9) RC(2,8) RC(2,7)
RC(3,0) RC(3,1) RC(3,2) RC(3,3) RC(3,4) RC(3,5)         RC(3,6) RC(3,13)         RC(3,12) RC(3,11) RC(3,10) RC(3,9) RC(3,8) RC(3,7)
RC(4,0) RC(4,1) RC(4,2) RC(4,3) RC(4,4)         RC(4,5) RC(4,6) RC(4,13) RC(4,12)         RC(4,11) RC(4,10) RC(4,9) RC(4,8) RC(4,7)
        >;
  };

    kscan0: kscan {
        compatible = "zmk,kscan-gpio-matrix";
        wakeup-source;

        diode-direction = "col2row";

        row-gpios
            = <&pro_micro 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            ;

        col-gpios
            = <&pro_micro 21 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 20 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 19 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 18 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 15 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 14 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            , <&pro_micro 16 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
            ;
    };
};