rt-thread-official/libcpu/unicore32/sep6200/trap.c

175 lines
4.8 KiB
C

/*
* File : trap.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2013, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2013-03-16 Peng Fan Modifiled from sep4020
*/
#include <rtthread.h>
#include <rthw.h>
#include <sep6200.h>
/**
* @addtogroup sep6200
*/
/*@{*/
extern struct rt_thread *rt_current_thread;
/**
* this function will show registers of CPU
*
* @param regs the registers point
*/
void rt_hw_show_register (struct rt_hw_register *regs)
{
rt_kprintf("Execption:\n");
rt_kprintf("r00:0x%08x r01:0x%08x r02:0x%08x r03:0x%08x\n", regs->r0, regs->r1, regs->r2, regs->r3);
rt_kprintf("r04:0x%08x r05:0x%08x r06:0x%08x r07:0x%08x\n", regs->r4, regs->r5, regs->r6, regs->r7);
rt_kprintf("r08:0x%08x r09:0x%08x r10:0x%08x r11:0x%08x\n", regs->r8, regs->r9, regs->r10,regs->r11);
rt_kprintf("r12:0x%08x r13:0x%08x r14:0x%08x r15:0x%08x\n", regs->r12,regs->r13,regs->r14,regs->r15);
rt_kprintf("r16:0x%08x r17:0x%08x r18:0x%08x r19:0x%08x\n", regs->r16,regs->r17,regs->r18,regs->r19);
rt_kprintf("r20:0x%08x r21:0x%08x r22:0x%08x r23:0x%08x\n", regs->r20,regs->r21,regs->r22,regs->r23);
rt_kprintf("r24:0x%08x sb:0x%08x sl:0x%08xfp :0x%08x ip :0x%08x\n",regs->r24,regs->sb,regs->sl,regs->fp,regs->ip);
rt_kprintf("sp :0x%08x lr :0x%08x pc :0x%08x\n", regs->sp, regs->lr, regs->pc);
rt_kprintf("asr:0x%08x bsr:0x%08x\n", regs->asr,regs->bsr);
}
/**
* When unicore comes across an instruction which it cannot handle,
* it takes the extn instruction trap.
*
* @param regs system registers
*
* @note never invoke this function in application
*/
void rt_hw_trap_extn(struct rt_hw_register *regs)
{
rt_hw_show_register(regs);
rt_kprintf("extn instruction\n");
rt_kprintf("thread - %s stack:\n", rt_current_thread->name);
rt_hw_backtrace((rt_uint32_t *)regs->fp, (rt_uint32_t)rt_current_thread->entry);
rt_hw_cpu_shutdown();
}
/**
* The software interrupt instruction (SWI) is used for entering
* Supervisor mode, usually to request a particular supervisor
* function.
*
* @param regs system registers
*
* @note never invoke this function in application
*/
void rt_hw_trap_swi(struct rt_hw_register *regs)
{
rt_hw_show_register(regs);
rt_kprintf("software interrupt\n");
rt_hw_cpu_shutdown();
}
/**
* An abort indicates that the current memory access cannot be completed,
* which occurs during an instruction prefetch.
*
* @param regs system registers
*
* @note never invoke this function in application
*/
void rt_hw_trap_pabt(struct rt_hw_register *regs)
{
rt_hw_show_register(regs);
rt_kprintf("prefetch abort\n");
rt_kprintf("thread - %s stack:\n", rt_current_thread->name);
rt_hw_backtrace((rt_uint32_t *)regs->fp, (rt_uint32_t)rt_current_thread->entry);
rt_hw_cpu_shutdown();
}
/**
* An abort indicates that the current memory access cannot be completed,
* which occurs during a data access.
*
* @param regs system registers
*
* @note never invoke this function in application
*/
void rt_hw_trap_dabt(struct rt_hw_register *regs)
{
rt_hw_show_register(regs);
rt_kprintf("data abort\n");
rt_kprintf("thread - %s stack:\n", rt_current_thread->name);
rt_hw_backtrace((rt_uint32_t *)regs->fp, (rt_uint32_t)rt_current_thread->entry);
rt_hw_cpu_shutdown();
}
/**
* Normally, system will never reach here
*
* @param regs system registers
*
* @note never invoke this function in application
*/
void rt_hw_trap_resv(struct rt_hw_register *regs)
{
rt_kprintf("not used\n");
rt_hw_show_register(regs);
rt_hw_cpu_shutdown();
}
extern struct rt_irq_desc isr_table[];
void rt_hw_trap_irq(void)
{
unsigned long intstat;
rt_uint32_t irq = 0;
rt_isr_handler_t isr_func;
void *param;
/* get the interrupt number */
irq = *(RP)(SEP6200_VIC_IRQ_VECTOR_NUM);
/* get interrupt service routine */
isr_func = isr_table[irq].handler;
param = isr_table[irq].param;
/* turn to interrupt service routine */
isr_func(irq, param);
#ifdef RT_USING_INTERRUPT_INFO
isr_table[irq].counter++;
#endif /* RT_USING_INTERRUPT_INFO */
}
void rt_hw_trap_fiq()
{
rt_kprintf("fast interrupt request\n");
}
/*@}*/