/*
 * ws2812b.h
 *
 *	The MIT License.
 *	Created on: 14.07.2017
 *		Author: Mateusz Salamon
 *		www.msalamon.pl
 *		mateusz@msalamon.pl
 */

#ifndef WS2812B_H_
#define WS2812B_H_

/* Includes */
#include <stdint.h>

/* Defintions */
#define WS2812B_LEDS (1)

/* Data Structures */
typedef union __attribute__((packed, aligned(4))) ws2812b_color_u {
	struct __attribute__((packed, aligned(4))) rgbx_s {
		uint8_t green;
		uint8_t red;
		uint8_t blue;
		uint8_t x;
	} rgbx;
	struct __attribute__((packed, aligned(4))) rgb_s {
		uint8_t _pad;
		uint8_t green;
		uint8_t red;
		uint8_t blue;
	} rgb;
	uint32_t u32;
	uint8_t  u8[4];
} ws2812b_color;

/* Function Prototypes */
void WS2812B_Init(SPI_HandleTypeDef * spi_handler);
void WS2812B_SetDiodeColor(uint16_t diode_id, uint32_t color);
void WS2812B_SetDiodeColorStruct(uint16_t diode_id, ws2812b_color color);
void WS2812B_SetDiodeRGB(uint16_t diode_id, uint8_t r, uint8_t g, uint8_t b);
void WS2812B_SetDiodeRGBX(uint16_t diode_id, uint8_t r, uint8_t g, uint8_t b, uint8_t x);
void WS2812B_SetDiodeHSV(uint16_t diode_id, uint16_t hue, uint8_t sat, uint8_t brt);
uint32_t WS2812B_GetColor(uint16_t diode_id);
uint8_t* WS2812B_GetPixels(void);
void WS2812B_Refresh();

// color correction
uint8_t sine8(uint8_t x);
uint8_t gamma8(uint8_t x);
#endif /* WS2812B_H_ */