/*
 * 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 = <16>;
		rows = <4>;
// | MX6  | MX5  | MX4  | MX3  | MX2  | MX1  |                               | MX1  | MX2  | MX3  | MX4  | MX5  | MX6  |
// | MX12 | MX11 | MX10 | MX9  | MX8  | MX7  |                               | MX7  | MX8  | MX9  | MX10 | MX11 | MX12 |
// | MX20 | MX19 | MX18 | MX17 | MX16 | MX15 | MX14 | MX13 |   | MX13 | MX14 | MX15 | MX16 | MX17 | MX18 | MX19 | MX20 |
//                    | MX25 | MX24 | MX23 | MX22 | MX21 |       | MX21 | MX22 | MX23 | MX24 | MX25 |
		map = <
RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5)                                 RC(0,10) RC(0,11) RC(0,12) RC(0,13) RC(0,14) RC(0,15)
RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5)                                 RC(1,10) RC(1,11) RC(1,12) RC(1,13) RC(1,14) RC(1,15)
RC(2,0) RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5) RC(2,6) RC(2,7) RC(2,8) RC(2,9) RC(2,10) RC(2,11) RC(2,12) RC(2,13) RC(2,14) RC(2,15)
                        RC(3,3) RC(3,4) RC(3,5) RC(3,6) RC(3,7) RC(3,8) RC(3,9) RC(3,10) RC(3,11) RC(3,12)
		>;
	};

// | MX5  | MX4  | MX3  | MX2  | MX1  |                               | MX1  | MX2  | MX3  | MX4  | MX5  |
// | MX11 | MX10 | MX9  | MX8  | MX7  |                               | MX7  | MX8  | MX9  | MX10 | MX11 |
// | MX19 | MX18 | MX17 | MX16 | MX15 | MX14 | MX13 |   | MX13 | MX14 | MX15 | MX16 | MX17 | MX18 | MX19 |
//             | MX25 | MX24 | MX23 | MX22 | MX21 |       | MX21 | MX22 | MX23 | MX24 | MX25 |
	five_column_transform: keymap_transform_1 {
		compatible = "zmk,matrix-transform";
		columns = <14>;
		rows = <4>;
		map = <
RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4)                                 RC(0,9) RC(0,10) RC(0,11) RC(0,12) RC(0,13)
RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4)                                 RC(1,9) RC(1,10) RC(1,11) RC(1,12) RC(1,13)
RC(2,0) RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5) RC(2,6) RC(2,7) RC(2,8) RC(2,9) RC(2,10) RC(2,11) RC(2,12) RC(2,13)
                RC(3,2) RC(3,3) RC(3,4) RC(3,5) RC(3,6) RC(3,7) RC(3,8) RC(3,9) RC(3,10) RC(3,11)
		>;
	};

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

		diode-direction = "col2row";
		row-gpios
			= <&pro_micro_d 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&pro_micro_d 7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&pro_micro_d 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&pro_micro_d 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			;
		
	};

	left_encoder: encoder_left {
		compatible = "alps,ec11";
		label = "LEFT_ENCODER";
		a-gpios = <&pro_micro_d 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		b-gpios = <&pro_micro_d 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		resolution = <4>;
		status = "disabled";
	};

	right_encoder: encoder_right {
		compatible = "alps,ec11";
		label = "RIGHT_ENCODER";
		a-gpios = <&pro_micro_d 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		b-gpios = <&pro_micro_d 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>;
		resolution = <4>;
		status = "disabled";
	};

	sensors {
		compatible = "zmk,keymap-sensors";
		sensors = <&left_encoder &right_encoder>;
	};

	// TODO: RGB node(s)
};

&pro_micro_i2c {
	status = "okay";

	ssd1306@3c {
		compatible = "solomon,ssd1306fb";
		reg = <0x3c>;
		label = "DISPLAY";
		width = <128>;
		height = <64>;
		segment-offset = <0>;
		page-offset = <0>;
		display-offset = <0>;
		multiplex-ratio = <63>;
		prechargep = <0x22>;
	};
};
