dosimeter/stm32workspace/dosim-v1/Core/Inc/fifo.h

/*
 * fifo.h
 *
 *  Created on: Jan 17, 2022
 *      Author: radioman
 */

#ifndef INC_FIFO_H_
#define INC_FIFO_H_

#include <stdint.h>

typedef enum { FIFO_EMPTY, FIFO_READY, FIFO_FULL } FIFO_StateTypeDef;

typedef struct {
	uint32_t head;
	uint32_t tail;
	uint32_t size;
	FIFO_StateTypeDef state;
	uint8_t *data;
} FIFO_HandleTypeDef;

void fifo_init(FIFO_HandleTypeDef *fifo, uint8_t *buffer, uint32_t size);
FIFO_StateTypeDef fifo_state(FIFO_HandleTypeDef *fifo);
int fifo_read(FIFO_HandleTypeDef *fifo, uint8_t *buf, uint32_t len);
int fifo_write(FIFO_HandleTypeDef *fifo, uint8_t *data, uint32_t len);
int fifo_size(FIFO_HandleTypeDef *fifo);

#endif /* INC_FIFO_H_ */