/*
 * Copyright (c) 2020 Pete Johanson
 *
 * 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 = <6>;
		rows = <4>;
// | SW1  | SW2  | SW3  | SW4  | SW5  | SW6  |
// | SW7  | SW8  | SW9  | SW10 | SW11 | SW12 |
// | SW13 | SW14 | SW15 | SW16 | SW17 | SW18 |
//                      | SW19 | SW20 | SW21 |
		map = <
RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5)
RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5)
RC(2,0) RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5)
                        RC(3,3) RC(3,4) RC(3,5)
		>;
	};

	kscan0: kscan {
		compatible = "zmk,kscan-gpio-matrix";
		label = "KSCAN";

		diode-direction = "col2row";
		row-gpios
			= <&pro_micro_d 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&pro_micro_d 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&pro_micro_d 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&pro_micro_d 7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			;
		
		col-gpios
			= <&pro_micro_a  3 GPIO_ACTIVE_HIGH>
			, <&pro_micro_a  2 GPIO_ACTIVE_HIGH>
			, <&pro_micro_a  1 GPIO_ACTIVE_HIGH>
			, <&pro_micro_a  0 GPIO_ACTIVE_HIGH>
			, <&pro_micro_d 15 GPIO_ACTIVE_HIGH>
			, <&pro_micro_d 14 GPIO_ACTIVE_HIGH>
			;
	};

	// TODO: per-key RGB node(s)?
};

&pro_micro_i2c {
	status = "okay";

	oled: ssd1306@3c {
		compatible = "solomon,ssd1306fb";
		reg = <0x3c>;
		label = "DISPLAY";
		width = <128>;
		height = <32>;
		segment-offset = <0>;
		page-offset = <0>;
		display-offset = <0>;
		multiplex-ratio = <31>;
		segment-remap;
		com-invdir;
		com-sequential;
		prechargep = <0x22>;
	};
};