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move components to SDK dir
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Shuanglei Tao
349
SDK/12.3.0_d7731ad/components/libraries/atomic/nrf_atomic.h
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349
SDK/12.3.0_d7731ad/components/libraries/atomic/nrf_atomic.h
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/**
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* Copyright (c) 2016 - 2017, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* 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, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* 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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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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 SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/**@file
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*
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* @defgroup nrf_atomic Atomic operations API
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* @ingroup app_atfifo
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* @{
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*
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* @brief @tagAPI52 This module implements C11 stdatomic.h simplified API.
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At this point only Cortex-M3/M4 cores are supported (LDREX/STREX instructions).
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* Atomic types are limited to @ref nrf_atomic_u32_t and @ref nrf_atomic_flag_t.
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*/
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#ifndef NRF_ATOMIC_H__
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#define NRF_ATOMIC_H__
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#include "sdk_common.h"
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#include "nrf_atomic_internal.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Stores value to an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value to store
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*
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* @return Old value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_store_fetch(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(mov, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return old_val;
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}
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/**
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* @brief Stores value to an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value to store
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*
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* @return New value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_store(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(mov, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return new_val;
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}
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/**
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* @brief Logical OR operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand OR operation
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*
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* @return Old value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_or_fetch(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(orr, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return old_val;
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}
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/**
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* @brief Logical OR operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand OR operation
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*
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* @return New value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_or(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(orr, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return new_val;
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}
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/**
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* @brief Logical AND operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand AND operation
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*
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* @return Old value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_and_fetch(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(and, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return old_val;
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}
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/**
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* @brief Logical AND operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand AND operation
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*
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* @return New value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_and(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(and, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return new_val;
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}
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/**
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* @brief Logical XOR operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand XOR operation
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*
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* @return Old value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_xor_fetch(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(eor, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return old_val;
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}
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/**
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* @brief Logical XOR operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand XOR operation
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*
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* @return New value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_xor(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(eor, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return new_val;
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}
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/**
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* @brief Arithmetic ADD operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand ADD operation
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*
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* @return Old value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_add_fetch(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(add, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return old_val;
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}
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/**
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* @brief Arithmetic ADD operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand ADD operation
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*
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* @return New value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_add(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(add, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return new_val;
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}
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/**
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* @brief Arithmetic SUB operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand SUB operation
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*
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* @return Old value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_sub_fetch(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(sub, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return old_val;
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}
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/**
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* @brief Arithmetic SUB operation on an atomic object
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*
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* @param[in] p_data Atomic memory pointer
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* @param[in] value Value of second operand SUB operation
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*
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* @return New value stored into atomic object
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* */
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static inline uint32_t nrf_atomic_u32_sub(nrf_atomic_u32_t * p_data, uint32_t value)
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{
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uint32_t old_val;
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uint32_t new_val;
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NRF_ATOMIC_OP(sub, old_val, new_val, p_data, value);
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UNUSED_PARAMETER(old_val);
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UNUSED_PARAMETER(new_val);
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return new_val;
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}
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/**************************************************************************************************/
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/**
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* @brief Logic one bit flag set operation on an atomic object
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*
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* @param[in] p_data Atomic flag memory pointer
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*
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* @return Old flag value
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* */
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static inline uint32_t nrf_atomic_flag_set_fetch(nrf_atomic_flag_t * p_data)
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{
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return nrf_atomic_u32_or_fetch(p_data, 1);
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}
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/**
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* @brief Logic one bit flag set operation on an atomic object
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*
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* @param[in] p_data Atomic flag memory pointer
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*
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* @return New flag value
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* */
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static inline uint32_t nrf_atomic_flag_set(nrf_atomic_flag_t * p_data)
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{
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return nrf_atomic_u32_or(p_data, 1);
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}
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/**
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* @brief Logic one bit flag clear operation on an atomic object
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*
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* @param[in] p_data Atomic flag memory pointer
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*
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* @return Old flag value
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* */
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static inline uint32_t nrf_atomic_flag_clear_fetch(nrf_atomic_flag_t * p_data)
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{
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return nrf_atomic_u32_and_fetch(p_data, 0);
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}
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/**
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* @brief Logic one bit flag clear operation on an atomic object
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*
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* @param[in] p_data Atomic flag memory pointer
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*
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* @return New flag value
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* */
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static inline uint32_t nrf_atomic_flag_clear(nrf_atomic_flag_t * p_data)
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{
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return nrf_atomic_u32_and(p_data, 0);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* NRF_ATOMIC_H__ */
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/** @} */
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