rt-thread/libcpu/arm/sep4020/trap.c

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/*
* File : trap.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://openlab.rt-thread.com/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2006-08-25 Bernard first version
* 2010-03-18 zchong for sep4020
*/
#include <rtthread.h>
#include <rthw.h>
#include "sep4020.h"
/**
* @addtogroup SEP4020
*/
/*@{*/
extern rt_isr_handler_t isr_table[];
void rt_hw_trap_irq()
{
rt_uint32_t intstat,intnum;
rt_uint8_t i = 0;
rt_isr_handler_t isr_func;
/* get interrupt source */
intstat = INTC_IFSR;
intnum = intstat;
if (intstat == INTGLOBAL) return;
while(intnum != 0x00000001)
{
intnum = intnum>>1;
i++;
}
/* get interrupt service routine */
isr_func = isr_table[i];
/* turn to interrupt service routine */
isr_func(intstat);
}
void rt_hw_trap_fiq()
{
rt_kprintf("fast interrupt request\n");
}
extern struct rt_thread* rt_current_thread;
void rt_hw_trap_abort()
{
rt_kprintf("Abort occured!!! Thread [%s] suspended.\n",rt_current_thread->name);
rt_thread_suspend(rt_current_thread);
rt_schedule();
}
/*@}*/