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/**
* @file
*
* @brief ARMV7M Interrupt Service Enter and Leave
*/
/*
* Copyright (c) 2011 Sebastian Huber. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/armv7m.h>
#include <rtems/score/isr.h>
#include <rtems/score/threaddispatch.h>
#ifdef ARM_MULTILIB_ARCH_V7M
void _ARMV7M_Interrupt_service_enter( void )
{
++_Thread_Dispatch_disable_level;
++_ISR_Nest_level;
}
void _ARMV7M_Interrupt_service_leave( void )
{
--_ISR_Nest_level;
--_Thread_Dispatch_disable_level;
if (
_ISR_Nest_level == 0
&& _Thread_Dispatch_disable_level == 0
&& _Thread_Dispatch_necessary
) {
_ARMV7M_SCB->icsr = ARMV7M_SCB_ICSR_PENDSVSET;
}
}
#endif /* ARM_MULTILIB_ARCH_V7M */
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