104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
/*
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* Copyright (c) 2017 - 2021, Nordic Semiconductor ASA
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef NRF_802154_SL_CRIT_SECT_IF_H__
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#define NRF_802154_SL_CRIT_SECT_IF_H__
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#include <stdbool.h>
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/**
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* @defgroup nrf_802154_sl_crit_sect_if Interface of the critical section.
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* @{
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*/
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/**
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* @brief Pointer to function used to enter critical section.
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*/
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typedef bool (* nrf_802154_sl_crit_sect_enter_t)(void);
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/**
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* @brief Pointer to function used to exit critical section.
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*/
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typedef void (* nrf_802154_sl_crit_sect_exit_t)(void);
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/**
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* @brief Structure that holds interface of Radio Driver critical sections.
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*/
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typedef struct
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{
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nrf_802154_sl_crit_sect_enter_t enter;
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nrf_802154_sl_crit_sect_exit_t exit;
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} nrf_802154_sl_crit_sect_interface_t;
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/**
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* @brief Initializes the critical section interface.
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*
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* After the call SL library can use @ref nrf_802154_sl_crit_sect_enter and
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* @ref nrf_802154_sl_crit_sect_exit to use critical section provided by the Radio Driver.
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*
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* @param[in] p_crit_sect_interface Pointer to a critical section interface of the Radio Driver.
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* It must point to static data for lifetime of Radio Driver.
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*/
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void nrf_802154_sl_crit_sect_init(
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const nrf_802154_sl_crit_sect_interface_t * p_crit_sect_interface);
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/**
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* @brief Enters into the critical section.
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*
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* @retval true Code entered into the critical section.
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* @retval false Critical section was already taken, could not enter into critical section.
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*/
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static inline bool nrf_802154_sl_crit_sect_enter(void)
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{
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extern const nrf_802154_sl_crit_sect_interface_t * gp_nrf_802154_sl_crit_sect_interface;
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return gp_nrf_802154_sl_crit_sect_interface->enter();
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}
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/**
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* @brief Exits out of the critical section.
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*/
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static inline void nrf_802154_sl_crit_sect_exit(void)
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{
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extern const nrf_802154_sl_crit_sect_interface_t * gp_nrf_802154_sl_crit_sect_interface;
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return gp_nrf_802154_sl_crit_sect_interface->exit();
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}
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/**
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*@}
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**/
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#endif // NRF_802154_SL_CRIT_SECT_IF_H__
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