2018-09-05 02:39:50 +02:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2018 Gunar Schorcht
|
|
|
|
*
|
|
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
|
|
* directory for more details.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @ingroup cpu_esp8266
|
|
|
|
* @{
|
|
|
|
*
|
|
|
|
* @file
|
|
|
|
* @brief Implementation of the kernels irq interface
|
|
|
|
*
|
|
|
|
* @author Gunar Schorcht <gunar@schorcht.net>
|
|
|
|
*
|
|
|
|
* @}
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef IRQ_ARCH_H
|
|
|
|
#define IRQ_ARCH_H
|
|
|
|
|
|
|
|
#include "irq.h"
|
|
|
|
#include "sched.h"
|
|
|
|
#include "thread.h"
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
extern "C" {
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @brief Indicates the interrupt nesting depth
|
|
|
|
*
|
|
|
|
* The variable is increment on entry into and decremented on exit from an ISR.
|
|
|
|
*/
|
|
|
|
extern uint32_t irq_interrupt_nesting;
|
|
|
|
|
|
|
|
#if defined(MODULE_ESP_SDK_INT_HANDLING) || defined(DOXYGEN)
|
|
|
|
/**
|
2018-12-23 18:28:08 +01:00
|
|
|
* @brief Macros that have to be used on entry into and exit from an ISR
|
2018-09-05 02:39:50 +02:00
|
|
|
*
|
|
|
|
* NOTE: since they use a local variable they can be used only in same function
|
|
|
|
* @{
|
|
|
|
*/
|
|
|
|
/** Macro that has to be used at the entry point of an ISR */
|
|
|
|
#define irq_isr_enter() int _irq_state = irq_disable (); \
|
|
|
|
irq_interrupt_nesting++;
|
|
|
|
|
|
|
|
/** Macro that has to be used at the exit point of an ISR */
|
|
|
|
#define irq_isr_exit() if (irq_interrupt_nesting) \
|
|
|
|
irq_interrupt_nesting--; \
|
|
|
|
irq_restore (_irq_state); \
|
|
|
|
if (sched_context_switch_request) \
|
|
|
|
thread_yield();
|
|
|
|
|
|
|
|
#else /* MODULE_ESP_SDK_INT_HANDLING */
|
|
|
|
|
|
|
|
/* in non SDK task handling all the stuff is done in _frxt_int_enter and _frxt_int_exit */
|
|
|
|
#define irq_isr_enter() /* int _irq_state = irq_disable (); \
|
|
|
|
irq_interrupt_nesting++; */
|
|
|
|
|
|
|
|
#define irq_isr_exit() /* if (irq_interrupt_nesting) \
|
|
|
|
irq_interrupt_nesting--; \
|
|
|
|
irq_restore (_irq_state); */
|
|
|
|
|
|
|
|
#endif /* MODULE_ESP_SDK_INT_HANDLING */
|
|
|
|
|
|
|
|
/**
|
|
|
|
* @brief Macros to enter and exit from critical region
|
|
|
|
*
|
|
|
|
* NOTE: since they use a local variable they can be used only in same function
|
|
|
|
* @{
|
|
|
|
*/
|
|
|
|
#define critical_enter() int _irq_state = irq_disable ()
|
|
|
|
#define critical_exit() irq_restore(_irq_state)
|
|
|
|
/** @} */
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#endif /* IRQ_ARCH_H */
|