/*
 * Copyright (c) 2021 Rafael Yumagulov
 *
 * SPDX-License-Identifier: MIT
 */

/dts-v1/;
#include <nordic/nrf52840_qiaa.dtsi>

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


/ {
	model = "dao";
	compatible = "dao";

	chosen {
		zephyr,code-partition = &code_partition;
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zmk,kscan = &kscan0;
		zmk,matrix_transform = &default_transform;
		zmk,battery = &vbatt;
	};

	default_transform: keymap_transform_0 {
		compatible = "zmk,matrix-transform";
		columns = <12>;
		rows = <4>;

			// | SW19 | SW1  | SW2  | SW3  | SW4  | SW5  | SW6  |   | SW6  | SW5  | SW4  | SW3  | SW2  | SW1  | SW19 |
			// |      | SW7  | SW8  | SW9  | SW10 | SW11 | SW12 |   | SW12 | SW11 | SW10 | SW9  | SW8  | SW7  |      |
			// |      | SW13 | SW14 | SW15 | SW16 | SW17 | SW18 |   | SW18 | SW17 | SW16 | SW15 | SW14 | SW13 |      |
			// |      |      |      |      | SW20 | SW21 | SW22 |   | SW22 | SW21 | SW20 |      |      |      |      |
					map = <
            RC(3,0) RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5)  RC(0,11) RC(0,10) RC(0,9) RC(0,8) RC(0,7) RC(0,6) RC(3,6)
                    RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5)  RC(1,11) RC(1,10) RC(1,9) RC(1,8) RC(1,7) RC(1,6)
                    RC(2,0) RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5)  RC(2,11) RC(2,10) RC(2,9) RC(2,8) RC(2,7) RC(2,6)
                                            RC(3,3) RC(3,4) RC(3,5)  RC(3,11) RC(3,10) RC(3,9)
		>;
	};

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

		diode-direction = "col2row";
		row-gpios
			= <&gpio0  6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&gpio0  4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&gpio0 22 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			, <&gpio0 24 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
			;
	};

	vbatt: vbatt {
		compatible = "zmk,battery-voltage-divider";
		label = "VBATT";
		io-channels = <&adc 7>; 
		output-ohms = <2000000>;
		full-ohms = <(2000000 + 820000)>;
	};
	
};


&adc {
	status = "okay";
};

&gpiote {
	status = "okay";
};

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&usbd {
	status = "okay";
};

&uart0 {
	compatible = "nordic,nrf-uarte";
	status = "okay";
	current-speed = <115200>;
	tx-pin = <19>;
	rx-pin = <21>;
	rts-pin = <23>;
	cts-pin = <25>;
};


&flash0 {
	/*
	 * For more information, see:
	 * http://docs.zephyrproject.org/latest/devices/dts/flash_partitions.html
	 */
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		sd_partition: partition@0 {
			label = "softdevice";
			reg = <0x00000000 0x00026000>;
		};
		code_partition: partition@26000 {
			label = "code_partition";
			reg = <0x00026000 0x000c6000>;
		};

		/*
		 * The flash starting at 0x000ec000 and ending at
		 * 0x000f3fff is reserved for use by the application.
		 */

		/*
		 * Storage partition will be used by FCB/LittleFS/NVS
		 * if enabled.
		 */
		storage_partition: partition@ec000 {
			label = "storage";
			reg = <0x000ec000 0x00008000>;
		};

		boot_partition: partition@f4000 {
			label = "adafruit_boot";
			reg = <0x000f4000 0x0000c000>;
		};
	};
};