/* * 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"); } /*@}*/