90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
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/*
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* Copyright (c) 2006-2019, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-04-05 bigmagic Initial version
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*/
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/**
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* @addtogroup ls2k
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*/
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/*@{*/
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#include <rtthread.h>
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#include <rthw.h>
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#include <exception.h>
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#define MAX_INTR 32
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static struct rt_irq_desc irq_handle_table[MAX_INTR];
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static void rt_hw_interrupt_handler(int vector, void *param)
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{
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rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
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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_uint32_t idx;
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rt_memset(irq_handle_table, 0x00, sizeof(irq_handle_table));
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for (idx = 0; idx < MAX_INTR; idx ++)
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{
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irq_handle_table[idx].handler = rt_hw_interrupt_handler;
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}
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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 >= 0 && vector < MAX_INTR)
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{
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old_handler = irq_handle_table[vector].handler;
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#ifdef RT_USING_INTERRUPT_INFO
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rt_strncpy(irq_handle_table[vector].name, name, RT_NAME_MAX);
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#endif /* RT_USING_INTERRUPT_INFO */
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irq_handle_table[vector].handler = handler;
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irq_handle_table[vector].param = param;
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}
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return old_handler;
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}
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void rt_hw_timer_handler(void);
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void rt_do_mips_cpu_irq(rt_uint32_t ip)
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{
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void *param;
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rt_isr_handler_t irq_func;
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if (ip == 7) {
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rt_hw_timer_handler();
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} else {
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irq_func = irq_handle_table[ip].handler;
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param = irq_handle_table[ip].param;
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/* do interrupt */
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irq_func(ip, param);
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}
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}
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void rt_hw_interrupt_umask(int irq)
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{
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mips_unmask_cpu_irq(irq);
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}
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void rt_hw_interrupt_mask(int irq)
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{
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mips_mask_cpu_irq(irq);
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}
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/*@}*/
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