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

/dts-v1/;
#include <st/f0/stm32f072Xb.dtsi>
#include <st/f0/stm32f072v(8-b)tx-pinctrl.dtsi>

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

/ {
	model = "Ferris rev0.2";
	compatible = "ferris,rev02", "st,stm32f072";

	chosen {
		zephyr,sram = &sram0;
		zephyr,flash = &flash0;
		zmk,kscan = &kscan;
		zmk,matrix_transform = &transform;
		/* TODO: Enable once we support the IC for underglow
		zmk,underglow = &led_strip;
		 */
	};

	transform: transform {
		compatible = "zmk,matrix-transform";
		rows = <4>;
		columns = <10>;

		map = <
		RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4)     RC(0,5) RC(0,6) RC(0,7) RC(0,8) RC(0,9)
		RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4)     RC(1,5) RC(1,6) RC(1,7) RC(1,8) RC(1,9)
		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(3,3)  RC(3,4)     RC(3,5) RC(3,6)
		>;
	};

	kscan: kscan {
		compatible = "zmk,kscan-composite";
		label = "KSCAN";
		rows = <4>;
		columns = <10>;

		left {
			kscan = <&kscan_left>;
		};

		right {
			kscan = <&kscan_right>;
			column-offset = <5>;
		};
	};

	kscan_left: kscan_left {
		compatible = "zmk,kscan-gpio-matrix";
		label = "KSCAN_LEFT";

		diode-direction = "col2row";

		col-gpios
		= <&gpiob 8 (GPIO_ACTIVE_HIGH)>
		, <&gpiob 4 (GPIO_ACTIVE_HIGH)>
		, <&gpiob 3 (GPIO_ACTIVE_HIGH)>
		, <&gpioa 15 (GPIO_ACTIVE_HIGH)>
		, <&gpioa 14 (GPIO_ACTIVE_HIGH)>
		;
		row-gpios
		= <&gpiob 7  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
		, <&gpiob 6  (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
		, <&gpiob 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
		, <&gpioa 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
		;
	};

	kscan_right: kscan_right {
		compatible = "zmk,kscan-gpio-matrix";
		label = "KSCAN_RIGHT";

		diode-direction = "row2col";

		col-gpios
		= <&right_io 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
		, <&right_io 1 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
		, <&right_io 2 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
		, <&right_io 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
		, <&right_io 4 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
		;
		row-gpios
		= <&right_io 8  (GPIO_ACTIVE_LOW)>
		, <&right_io 9  (GPIO_ACTIVE_LOW)>
		, <&right_io 10 (GPIO_ACTIVE_LOW)>
		, <&right_io 11 (GPIO_ACTIVE_LOW)>
		;
	};
};

&i2c2 {
	pinctrl-0 = <&i2c2_scl_pb10 &i2c2_sda_pb11>;
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;

	right_io: mcp23017@20 {
		compatible = "microchip,mcp23017";
		status = "okay";
		gpio-controller;
		reg = <0x20>;
		label = "RIGHT_IO";
		#gpio-cells = <2>;
		ngpios = <16>;
	};
};

&usb {
	status = "okay";
};

&rtc {
	status = "okay";
};

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

		/* Set 6Kb of storage at the end of the 128Kb of flash */
		storage_partition: partition@3e800 {
			label = "storage";
			reg = <0x0001e800 0x00001800>;
		};
	};
};