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72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
/*
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* Copyright (C) 2019 Gunar Schorcht
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#pragma once
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/**
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* @ingroup cpu_esp_common
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* @{
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*
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* @file
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* @brief Implementation of the kernels irq interface
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*
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* @author Gunar Schorcht <gunar@schorcht.net>
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*
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* @}
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*/
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#include "irq.h"
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#include "sched.h"
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#include "thread.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 Indicates the interrupt nesting depth
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*
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* The variable is incremented on entry into and decremented on exit from an ISR.
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*/
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extern volatile uint32_t irq_interrupt_nesting;
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/**
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* @name Macros to enter and exit an ISR
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*
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* Since all the stuff is done in `_frxt_int_enter` and `_frxt_int_exit`, these
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* macros are doing nothing and are kept only for source code compatibility.
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*
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* @{
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*/
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#define irq_isr_enter()
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#define irq_isr_exit()
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/** @} */
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/**
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* @name Macros to enter and exit a critical region
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*
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* @note: since they use a local variable they can be used only in same function
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*
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* @{
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*/
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#define critical_enter() int _irq_state = irq_disable()
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#define critical_exit() irq_restore(_irq_state)
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/** @} */
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/**
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* @name Macros to enter and exit a critical region with state variable
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* @{
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*/
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#define critical_enter_var(m) m = irq_disable()
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#define critical_exit_var(m) irq_restore(m)
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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