File content as of revision 0:3afcd581558d:

/***************************************************************************//**
 *   @file   fifo.h
 *   @brief  Implementation of fifo
 *   @author Cristian Pop (cristian.pop@analog.com)
********************************************************************************
 * Copyright 2019(c) Analog Devices, Inc.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *  - Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  - Neither the name of Analog Devices, Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *  - The use of this software may or may not infringe the patent rights
 *    of one or more patent holders.  This license does not release you
 *    from the requirement that you obtain separate licenses from these
 *    patent holders to use this software.
 *  - Use of the software either in source or binary form, must be run
 *    on or directly connected to an Analog Devices Inc. component.
 *
 * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT,
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR
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*******************************************************************************/
#ifndef FIFO_H_
#define FIFO_H_

/******************************************************************************/
/***************************** Include Files **********************************/
/******************************************************************************/

#include <stdint.h>

/******************************************************************************/
/*************************** Types Declarations *******************************/
/******************************************************************************/

/**
 * @struct fifo_element
 * @brief Structure holding the fifo element parameters.
 */
struct fifo_element {
	/** next FIFO element */
	struct fifo_element *next;
	/** FIFO data pointer */
	char *data;
	/** FIFO length */
	uint32_t len;
};

/******************************************************************************/
/************************ Functions Declarations ******************************/
/******************************************************************************/

/* Insert element to fifo tail. */
int32_t fifo_insert(struct fifo_element **p_fifo, char *buff, uint32_t len);

/* Remove fifo head. */
struct fifo_element *fifo_remove(struct fifo_element *p_fifo);

#endif /* FIFO_H_ */