lumamatrix_zephyr/zhaw_lumamatrix.overlay at main · visuphi/lumamatrix_zephyr · GitHub

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/*
 * Copyright (c) 2026, Institute of Embedded Systems ZHAW
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr/dt-bindings/led/led.h>
#include <zephyr/dt-bindings/input/input-event-codes.h>

/ {
	chosen {
		zephyr,display = &led_matrix;
	};

	aliases {
		led-strip = &bff_led_strip;
		sw0 = &joy_up;
		sw1 = &joy_down;
		sw2 = &joy_left;
		sw3 = &joy_right;
		sw4 = &joy_center;
		sw5 = &switch;
	};

	buttons {
		status = "okay";
		compatible = "gpio-keys";

		joy_up: joystick_up {
			gpios = <&pico_header 3 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "joystick button up";
			zephyr,code = <INPUT_KEY_UP>;
		};

		joy_down: joystick_down {
			gpios = <&pico_header 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "joystick button down";
			zephyr,code = <INPUT_KEY_DOWN>;
		};

		joy_left: joystick_left {
			gpios = <&pico_header 7 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "joystick button left";
			zephyr,code = <INPUT_KEY_LEFT>;
		};

		joy_right: joystick_right {
			gpios = <&pico_header 2 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "joystick button right";
			zephyr,code = <INPUT_KEY_RIGHT>;
		};

		joy_center: joystick_center {
			gpios = <&pico_header 8 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "joystick button center";
			zephyr,code = <INPUT_KEY_ENTER>;
		};

		switch: switch_0 {
			gpios = <&pico_header 9 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "switch";
			zephyr,code = <INPUT_KEY_0>;
		};
	};

	led_matrix: led-matrix {
		compatible = "led-strip-matrix";
		status = "okay";
		led-strips = <&bff_led_strip>;
		width = <8>;
		height = <8>;
		circulative;
	};
};

&pio0 {
	status = "okay";

	bff-ws2812 {
		compatible = "worldsemi,ws2812-rpi_pico-pio";
		status = "okay";
		pinctrl-0 = <&pinctrl_bff_ws2812>;
		pinctrl-names = "default";
		bit-waveform = <3>, <3>, <4>;

		bff_led_strip: bff_led_strip {
			status = "okay";
			gpios = <&pico_header 19 GPIO_ACTIVE_HIGH>;
			chain-length = <64>;
			color-mapping = <LED_COLOR_ID_GREEN
					 LED_COLOR_ID_RED
					 LED_COLOR_ID_BLUE>;
			reset-delay = <280>;
			frequency = <800000>;
		};
	};
};