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