linux/drivers/staging/media/atomisp/pci/ia_css_buffer.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2015, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#ifndef __IA_CSS_BUFFER_H
#define __IA_CSS_BUFFER_H

/* @file
 * This file contains datastructures and types for buffers used in CSS
 */

#include <type_support.h>
#include "ia_css_types.h"
#include "ia_css_timer.h"

/* Enumeration of buffer types. Buffers can be queued and de-queued
 *  to hand them over between IA and ISP.
 */
enum ia_css_buffer_type { … };

/* Driver API is not SP/ISP visible, 64 bit types not supported on hivecc */

/* Buffer structure. This is a container structure that enables content
 *  independent buffer queues and access functions.
 */
struct ia_css_buffer { … };

/* @brief Dequeue param buffers from sp2host_queue
 *
 * @return                                       None
 *
 * This function must be called at every driver interrupt handler to prevent
 * overflow of sp2host_queue.
 */
void
ia_css_dequeue_param_buffers(void);

#endif /* __IA_CSS_BUFFER_H */