/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Support for Intel Camera Imaging ISP subsystem.
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* Copyright (c) 2015, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef _IA_CSS_REFCOUNT_H_
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#define _IA_CSS_REFCOUNT_H_
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#include <type_support.h>
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#include <system_local.h>
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#include <ia_css_err.h>
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#include <ia_css_types.h>
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typedef void (*clear_func)(ia_css_ptr ptr);
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/*! \brief Function for initializing refcount list
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*
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* \param[in] size Size of the refcount list.
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* \return ia_css_err
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*/
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int ia_css_refcount_init(uint32_t size);
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/*! \brief Function for de-initializing refcount list
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*
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* \return None
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*/
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void ia_css_refcount_uninit(void);
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/*! \brief Function for increasing reference by 1.
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*
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* \param[in] id ID of the object.
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* \param[in] ptr Data of the object (ptr).
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* \return ia_css_ptr (saved address)
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*/
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ia_css_ptr ia_css_refcount_increment(s32 id, ia_css_ptr ptr);
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/*! \brief Function for decrease reference by 1.
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*
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* \param[in] id ID of the object.
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* \param[in] ptr Data of the object (ptr).
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*
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* - true, if it is successful.
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* - false, otherwise.
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*/
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bool ia_css_refcount_decrement(s32 id, ia_css_ptr ptr);
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/*! \brief Function to check if reference count is 1.
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*
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* \param[in] ptr Data of the object (ptr).
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*
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* - true, if it is successful.
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* - false, otherwise.
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*/
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bool ia_css_refcount_is_single(ia_css_ptr ptr);
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/*! \brief Function to clear reference list objects.
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*
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* \param[in] id ID of the object.
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* \param[in] clear_func function to be run to free reference objects.
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*
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* return None
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*/
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void ia_css_refcount_clear(s32 id,
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clear_func clear_func_ptr);
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/*! \brief Function to verify if object is valid
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*
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* \param[in] ptr Data of the object (ptr)
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*
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* - true, if valid
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* - false, if invalid
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*/
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bool ia_css_refcount_is_valid(ia_css_ptr ptr);
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#endif /* _IA_CSS_REFCOUNT_H_ */
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