149 lines
3.6 KiB
C
149 lines
3.6 KiB
C
/*
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* File : interrupt.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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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*/
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#include <rthw.h>
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#include "gk7101.h"
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#define MAX_HANDLERS (64)
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extern rt_uint32_t rt_interrupt_nest;
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/* exception and interrupt handler table */
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struct rt_irq_desc irq_desc[MAX_HANDLERS];
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rt_uint32_t rt_interrupt_from_thread, rt_interrupt_to_thread;
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rt_uint32_t rt_thread_switch_interrupt_flag;
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/* --------------------------------------------------------------------
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* Interrupt initialization
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* -------------------------------------------------------------------- */
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void rt_hw_interrupt_mask(int irq);
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void rt_hw_interrupt_umask(int irq);
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rt_isr_handler_t rt_hw_interrupt_handle(rt_uint32_t vector, void *param)
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{
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rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
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return RT_NULL;
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}
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/**
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* This function will initialize hardware interrupt
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*/
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void rt_hw_interrupt_init(void)
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{
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//rt_int32_t i;
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//register rt_uint32_t idx;
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/* init interrupt nest, and context in thread sp */
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rt_interrupt_nest = 0;
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rt_interrupt_from_thread = 0;
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rt_interrupt_to_thread = 0;
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rt_thread_switch_interrupt_flag = 0;
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}
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/**
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* This function will mask a interrupt.
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* @param vector the interrupt number
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*/
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void rt_hw_interrupt_mask(int irq)
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{
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}
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/**
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* This function will un-mask a interrupt.
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* @param vector the interrupt number
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*/
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void rt_hw_interrupt_umask(int irq)
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{
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}
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/**
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* This function will install a interrupt service routine to a interrupt.
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* @param vector the interrupt number
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* @param handler the interrupt service routine to be installed
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* @param param the interrupt service function parameter
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* @param name the interrupt name
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* @return old handler
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*/
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rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
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void *param, const char *name)
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{
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rt_isr_handler_t old_handler = RT_NULL;
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if(vector < MAX_HANDLERS)
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{
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old_handler = irq_desc[vector].handler;
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if (handler != RT_NULL)
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{
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#ifdef RT_USING_INTERRUPT_INFO
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rt_snprintf(irq_desc[vector].name, RT_NAME_MAX - 1, "%s", name);
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irq_desc[vector].counter = 0;
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#endif
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irq_desc[vector].handler = (rt_isr_handler_t)handler;
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irq_desc[vector].param = param;
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}
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}
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return old_handler;
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}
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/*@}*/
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#ifdef RT_USING_FINSH
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void list_irq(void)
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{
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int irq;
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#ifdef RT_USING_INTERRUPT_INFO
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rt_kprintf("number\tcount\tname\n");
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for (irq = 0; irq < MAX_HANDLERS; irq++)
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{
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if (rt_strncmp(irq_desc[irq].name, "default", sizeof("default")))
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{
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rt_kprintf("%02ld: %10ld %s\n", irq, irq_desc[irq].counter, irq_desc[irq].name);
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}
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}
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#endif
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}
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#include <finsh.h>
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FINSH_FUNCTION_EXPORT(list_irq, list system irq);
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#endif
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