mirror of
https://github.com/Ralim/IronOS.git
synced 2025-02-26 07:53:55 +00:00
108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/*
|
|
* WS2812.cpp
|
|
*
|
|
* Created on: 2 May 2021
|
|
* Author: Ralim
|
|
*/
|
|
|
|
#include "Pins.h"
|
|
#include <WS2812.h>
|
|
#include <string.h>
|
|
uint8_t WS2812::leds_colors[WS2812_LED_CHANNEL_COUNT * WS2812_LED_COUNT];
|
|
|
|
void WS2812::init(void) { memset(leds_colors, 0, sizeof(leds_colors)); }
|
|
|
|
void WS2812::led_update() {
|
|
__disable_irq();
|
|
// Bitbang it out as our cpu irq latency is too high
|
|
for (unsigned int i = 0; i < sizeof(leds_colors); i++) {
|
|
// Shove out MSB first
|
|
for (int x = 0; x < 8; x++) {
|
|
WS2812_GPIO_Port->BSRR = WS2812_Pin;
|
|
if ((leds_colors[i] & (1 << (7 - x))) == (1 << (7 - x))) {
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
} else {
|
|
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
}
|
|
WS2812_GPIO_Port->BSRR = (uint32_t)WS2812_Pin << 16u;
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
__asm__ __volatile__("nop");
|
|
}
|
|
}
|
|
__enable_irq();
|
|
}
|
|
|
|
void WS2812::led_set_color(size_t index, uint8_t r, uint8_t g, uint8_t b) {
|
|
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 0] = g;
|
|
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 1] = r;
|
|
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 2] = b;
|
|
}
|
|
|
|
void WS2812::led_set_color_all(uint8_t r, uint8_t g, uint8_t b) {
|
|
for (int index = 0; index < WS2812_LED_COUNT; index++) {
|
|
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 0] = g;
|
|
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 1] = r;
|
|
leds_colors[index * WS2812_LED_CHANNEL_COUNT + 2] = b;
|
|
}
|
|
}
|