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74 lines
1.9 KiB
74 lines
1.9 KiB
7 years ago
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#pragma once
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/* Exported macros -----------------------------------------------------------*/
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/**
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* @brief Compose an RGB color.
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* @param r, g, b - components 0xFF
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* @returns integer 0xRRGGBB
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*/
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#define rgb(r, g, b) (((0xFF & (r)) << 16) | ((0xFF & (g)) << 8) | (0xFF & (b)))
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/* Get components */
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#define rgb_r(rgb) (uint8_t)(((rgb) >> 16) & 0xFF)
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#define rgb_g(rgb) (uint8_t)(((rgb) >> 8) & 0xFF)
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#define rgb_b(rgb) (uint8_t)((rgb) & 0xFF)
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typedef union {
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struct {
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uint8_t r;
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uint8_t g;
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uint8_t b;
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};
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uint32_t num;
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} xrgb_t;
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/* Exported functions --------------------------------------------------------*/
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/**
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* @brief Set color of multiple chained RGB leds
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*
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* @param port
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* @param ll_pin
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* @param rgbs - array of colors (0xRRGGBB)
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* @param count - number of pixels
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*/
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void ws2812_load(GPIO_TypeDef *port, uint32_t ll_pin, uint32_t *rgbs, uint32_t count);
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/**
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* Load RGBs from a packed byte stream
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*
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* @param port
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* @param ll_pin
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* @param rgbs - packed R,G,B, R,G,B, ... array
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* @param count - number of pixels (triplets)
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*/
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void ws2812_load_raw(GPIO_TypeDef *port, uint32_t ll_pin, uint8_t *rgbs, uint32_t count);
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/**
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* Load all pixels with BLACK (0,0,0)
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*
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* @param port
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* @param ll_pin
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* @param count - number of pixels
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*/
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void ws2812_clear(GPIO_TypeDef *port, uint32_t ll_pin, uint32_t count);
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/**
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* Load from a stream of 32-bit numbers (4th or 1st byte skipped)
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* @param port
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* @param ll_pin
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* @param rgbs - payload
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* @param count - number of pixels
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* @param bigendian - big endian ordering
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*/
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void ws2812_load_sparse(GPIO_TypeDef *port, uint32_t ll_pin, uint8_t *rgbs, uint32_t count, bool bigendian);
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