/*
 * ws281x.h
 *
 *  The MIT License.
 *  Created on: 14.07.2017
 *      Author: Mateusz Salamon
 *      www.msalamon.pl
 *      mateusz@msalamon.pl
 */

#ifndef WS281X_H_
#define WS281X_H_

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

/* Defintions */

/* Data Structures */
typedef enum ws281x_type_e {
	WS281X_TYPE_WS2811 = 0,
	WS281X_TYPE_WS2812,
	WS281X_TYPE_WS2812B,
	WS281X_TYPE_SK6812,
	WS281X_TYPE_SK6812RGBW,
	WS281X_TYPE_WS2813B,
	WS281X_TYPE_END
} ws281x_type_t;
typedef union __attribute__((packed, aligned(4))) ws281x_color_u {
	struct __attribute__((packed, aligned(4))) rgbx_s {
		uint8_t r; /* red */
		uint8_t g; /* green */
		uint8_t b; /* blue */
		uint8_t x; /* additional color channel - commonly white or warm white */
	} rgbx;
	uint32_t u32;
	uint8_t  u8[4];
} ws281x_color_t;
typedef struct ws281x_s ws281x_t;

/* Function Prototypes */
ws281x_t *ws281x_init(ws281x_type_t type, SPI_HandleTypeDef *hspi, ws281x_color_t *leds, int32_t num_leds);
void ws281x_refresh(ws281x_t *ws281x);
int32_t ws281x_set_led(ws281x_t *ws281x, uint16_t led_id, ws281x_color_t color);

#endif /* WS281X_H_ */