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/* 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_REFCOUNT_H_
#define _IA_CSS_REFCOUNT_H_
#include <type_support.h>
#include <system_local.h>
#include <ia_css_err.h>
#include <ia_css_types.h>
typedef void (*clear_func)(ia_css_ptr ptr);
/*! \brief Function for initializing refcount list
*
* \param[in] size Size of the refcount list.
* \return ia_css_err
*/
int ia_css_refcount_init(uint32_t size);
/*! \brief Function for de-initializing refcount list
*
* \return None
*/
void ia_css_refcount_uninit(void);
/*! \brief Function for increasing reference by 1.
*
* \param[in] id ID of the object.
* \param[in] ptr Data of the object (ptr).
* \return ia_css_ptr (saved address)
*/
ia_css_ptr ia_css_refcount_increment(s32 id, ia_css_ptr ptr);
/*! \brief Function for decrease reference by 1.
*
* \param[in] id ID of the object.
* \param[in] ptr Data of the object (ptr).
*
* - true, if it is successful.
* - false, otherwise.
*/
bool ia_css_refcount_decrement(s32 id, ia_css_ptr ptr);
/*! \brief Function to check if reference count is 1.
*
* \param[in] ptr Data of the object (ptr).
*
* - true, if it is successful.
* - false, otherwise.
*/
bool ia_css_refcount_is_single(ia_css_ptr ptr);
/*! \brief Function to clear reference list objects.
*
* \param[in] id ID of the object.
* \param[in] clear_func function to be run to free reference objects.
*
* return None
*/
void ia_css_refcount_clear(s32 id,
clear_func clear_func_ptr);
/*! \brief Function to verify if object is valid
*
* \param[in] ptr Data of the object (ptr)
*
* - true, if valid
* - false, if invalid
*/
bool ia_css_refcount_is_valid(ia_css_ptr ptr);
#endif /* _IA_CSS_REFCOUNT_H_ */
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