133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
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/*
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* File : trap.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://openlab.rt-thread.com/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2008-12-11 XuXinming first version
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*/
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#include <rtthread.h>
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#include <rthw.h>
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#include "LPC24xx.h"
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//#define BSP_INT_DEBUG
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/**
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* @addtogroup LPC2478
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*/
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/*@{*/
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/**
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* this function will show registers of CPU
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*
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* @param regs the registers point
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*/
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void rt_hw_show_register (struct rt_hw_register *regs)
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{
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rt_kprintf("Execption:\n");
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rt_kprintf("r00:0x%08x r01:0x%08x r02:0x%08x r03:0x%08x\n", regs->r0, regs->r1, regs->r2, regs->r3);
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rt_kprintf("r04:0x%08x r05:0x%08x r06:0x%08x r07:0x%08x\n", regs->r4, regs->r5, regs->r6, regs->r7);
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rt_kprintf("r08:0x%08x r09:0x%08x r10:0x%08x\n", regs->r8, regs->r9, regs->r10);
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rt_kprintf("fp :0x%08x ip :0x%08x\n", regs->fp, regs->ip);
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rt_kprintf("sp :0x%08x lr :0x%08x pc :0x%08x\n", regs->sp, regs->lr, regs->pc);
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rt_kprintf("cpsr:0x%08x\n", regs->cpsr);
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}
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/**
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* When ARM7TDMI comes across an instruction which it cannot handle,
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* it takes the undefined instruction trap.
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*
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* @param regs system registers
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*
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* @note never invoke this function in application
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*/
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void rt_hw_trap_udef(struct rt_hw_register *regs)
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{
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rt_kprintf("undefined instruction\n");
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rt_hw_show_register(regs);
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rt_hw_cpu_shutdown();
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}
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/**
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* The software interrupt instruction (SWI) is used for entering
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* Supervisor mode, usually to request a particular supervisor
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* function.
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*
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* @param regs system registers
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*
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* @note never invoke this function in application
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*/
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void rt_hw_trap_swi(struct rt_hw_register *regs)
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{
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rt_kprintf("software interrupt\n");
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rt_hw_show_register(regs);
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rt_hw_cpu_shutdown();
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}
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/**
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* An abort indicates that the current memory access cannot be completed,
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* which occurs during an instruction prefetch.
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*
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* @param regs system registers
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*
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* @note never invoke this function in application
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*/
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void rt_hw_trap_pabt(struct rt_hw_register *regs)
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{
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rt_kprintf("prefetch abort\n");
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rt_hw_show_register(regs);
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rt_hw_cpu_shutdown();
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}
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/**
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* An abort indicates that the current memory access cannot be completed,
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* which occurs during a data access.
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*
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* @param regs system registers
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*
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* @note never invoke this function in application
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*/
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void rt_hw_trap_dabt(struct rt_hw_register *regs)
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{
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rt_kprintf("Data Abort ");
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rt_hw_show_register(regs);
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rt_hw_cpu_shutdown();
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}
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/**
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* Normally, system will never reach here
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*
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* @param regs system registers
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*
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* @note never invoke this function in application
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*/
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void rt_hw_trap_resv(struct rt_hw_register *regs)
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{
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rt_kprintf("not used\n");
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rt_hw_show_register(regs);
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rt_hw_cpu_shutdown();
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}
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extern rt_isr_handler_t isr_table[];
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void rt_hw_trap_irq()
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{
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rt_isr_handler_t isr_func;
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isr_func = (rt_isr_handler_t) VICVectAddr;
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isr_func(0);
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}
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void rt_hw_trap_fiq()
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{
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rt_kprintf("fast interrupt request\n");
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}
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/*@}*/
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