/*
 * WS2812.h
 *
 *  Created on: 2 May 2021
 *      Author: Ralim
 */
#include "Setup.h"
#include <stddef.h>
#include <stdint.h>

#ifndef CORE_DRIVERS_WS2812_H_
#define CORE_DRIVERS_WS2812_H_
#ifndef WS2812_LED_COUNT
#define WS2812_LED_COUNT 3
#endif
#ifndef WS2812_LED_CHANNEL_COUNT
#define WS2812_LED_CHANNEL_COUNT 3
#endif
#define WS2812_RAW_BYTES_PER_LED (WS2812_LED_CHANNEL_COUNT * 8)
class WS2812 {
public:
  static void    init(void);
  static uint8_t led_update(uint8_t block);
  static void    led_set_color(size_t index, uint8_t r, uint8_t g, uint8_t b);
  static void    led_set_color_all(uint8_t r, uint8_t g, uint8_t b);

private:
  static uint8_t           led_is_update_finished(void);
  static void              led_start_reset_pulse(uint8_t num);
  static void              DMAHalfComplete(DMA_HandleTypeDef *hdma);
  static void              DMAComplete(DMA_HandleTypeDef *hdma);
  static void              led_update_sequence(uint8_t tc);
  static void              led_fill_led_pwm_data(size_t ledx, volatile uint16_t *ptr);
  static uint8_t           leds_colors[WS2812_LED_CHANNEL_COUNT * WS2812_LED_COUNT];
  static volatile uint16_t tmp_led_data[2 * WS2812_RAW_BYTES_PER_LED];
  static volatile uint8_t  is_reset_pulse; /*!< Status if we are sending reset pulse or led data */
  static volatile uint8_t  is_updating;    /*!< Is updating in progress? */
  static volatile uint32_t current_led;    /*!< Current LED number we are sending */
};

#endif /* CORE_DRIVERS_WS2812_H_ */