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80 lines
1.6 KiB
80 lines
1.6 KiB
4 years ago
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/*
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* Copyright (c) 2020 Nick Winans <nick@winans.codes>
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <device.h>
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#include <init.h>
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#include <logging/log.h>
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#include <drivers/led_strip.h>
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#include <device.h>
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#include <drivers/spi.h>
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LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
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#define STRIP_LABEL DT_LABEL(DT_ALIAS(led_strip))
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#define STRIP_NUM_PIXELS DT_PROP(DT_ALIAS(led_strip), chain_length)
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#define DELAY_TIME K_MSEC(50)
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#define RGB(_r, _g, _b) { .r = (_r), .g = (_g), .b = (_b) }
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static const struct led_rgb colors[] = {
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RGB(0x0f, 0x00, 0x00), /* red */
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RGB(0x00, 0x0f, 0x00), /* green */
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RGB(0x00, 0x00, 0x0f), /* blue */
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};
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struct led_rgb pixels[STRIP_NUM_PIXELS];
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static void zmk_rgb_underglow_start()
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{
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struct device *strip;
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size_t cursor = 0, color = 0;
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int rc;
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strip = device_get_binding(STRIP_LABEL);
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if (strip) {
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LOG_INF("Found LED strip device %s", STRIP_LABEL);
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} else {
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LOG_ERR("LED strip device %s not found", STRIP_LABEL);
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return;
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}
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LOG_INF("Displaying pattern on strip");
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while (1) {
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memset(&pixels, 0x00, sizeof(pixels));
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memcpy(&pixels[cursor], &colors[color], sizeof(struct led_rgb));
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rc = led_strip_update_rgb(strip, pixels, STRIP_NUM_PIXELS);
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if (rc) {
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LOG_ERR("couldn't update strip: %d", rc);
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}
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cursor++;
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if (cursor >= STRIP_NUM_PIXELS) {
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cursor = 0;
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color++;
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if (color == ARRAY_SIZE(colors)) {
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color = 0;
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}
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}
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k_sleep(DELAY_TIME);
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}
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}
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static int zmk_rgb_underglow_init(struct device *_arg)
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{
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zmk_rgb_underglow_start();
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return 0;
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}
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SYS_INIT(zmk_rgb_underglow_init,
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APPLICATION,
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CONFIG_APPLICATION_INIT_PRIORITY);
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