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67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
3 years ago
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/**
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* \file
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*
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* \brief Critical sections related functionality implementation.
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*
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* Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Subject to your compliance with these terms, you may use Microchip
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* software and any derivatives exclusively with Microchip products.
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* It is your responsibility to comply with third party license terms applicable
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* to your use of third party software (including open source software) that
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* may accompany Microchip software.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
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* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
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* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
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* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
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* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
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* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
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* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* \asf_license_stop
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*
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*/
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#include "hal_atomic.h"
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/**
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* \brief Driver version
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*/
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#define DRIVER_VERSION 0x00000001u
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/**
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* \brief Disable interrupts, enter critical section
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*/
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void atomic_enter_critical(hal_atomic_t volatile *atomic)
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{
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*atomic = __get_PRIMASK();
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__disable_irq();
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__DMB();
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}
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/**
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* \brief Exit atomic section
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*/
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void atomic_leave_critical(hal_atomic_t volatile *atomic)
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{
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__DMB();
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__set_PRIMASK(*atomic);
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}
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/**
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* \brief Retrieve the current driver version
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*/
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uint32_t atomic_get_version(void)
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{
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return DRIVER_VERSION;
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}
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