90 lines
1.9 KiB
C
90 lines
1.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2006-2019, RT-Thread Development Team
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
* 2019-12-04 Jiaxun Yang Initial version
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @addtogroup mipssim
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*@{*/
|
||
|
|
|
||
|
|
#include <rtthread.h>
|
||
|
|
#include <rthw.h>
|
||
|
|
#include <exception.h>
|
||
|
|
|
||
|
|
#define MAX_INTR 32
|
||
|
|
|
||
|
|
static struct rt_irq_desc irq_handle_table[MAX_INTR];
|
||
|
|
|
||
|
|
static void rt_hw_interrupt_handler(int vector, void *param)
|
||
|
|
{
|
||
|
|
rt_kprintf("Unhandled interrupt %d occured!!!\n", vector);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This function will initialize hardware interrupt
|
||
|
|
*/
|
||
|
|
void rt_hw_interrupt_init(void)
|
||
|
|
{
|
||
|
|
rt_uint32_t idx;
|
||
|
|
rt_memset(irq_handle_table, 0x00, sizeof(irq_handle_table));
|
||
|
|
for (idx = 0; idx < MAX_INTR; idx ++)
|
||
|
|
{
|
||
|
|
irq_handle_table[idx].handler = rt_hw_interrupt_handler;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
|
||
|
|
void *param, const char *name)
|
||
|
|
{
|
||
|
|
rt_isr_handler_t old_handler = RT_NULL;
|
||
|
|
|
||
|
|
if (vector >= 0 && vector < MAX_INTR)
|
||
|
|
{
|
||
|
|
old_handler = irq_handle_table[vector].handler;
|
||
|
|
|
||
|
|
#ifdef RT_USING_INTERRUPT_INFO
|
||
|
|
rt_strncpy(irq_handle_table[vector].name, name, RT_NAME_MAX);
|
||
|
|
#endif /* RT_USING_INTERRUPT_INFO */
|
||
|
|
irq_handle_table[vector].handler = handler;
|
||
|
|
irq_handle_table[vector].param = param;
|
||
|
|
}
|
||
|
|
|
||
|
|
return old_handler;
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_timer_handler(void);
|
||
|
|
|
||
|
|
void rt_do_mips_cpu_irq(rt_uint32_t ip)
|
||
|
|
{
|
||
|
|
void *param;
|
||
|
|
rt_isr_handler_t irq_func;
|
||
|
|
|
||
|
|
if (ip == 7) {
|
||
|
|
rt_hw_timer_handler();
|
||
|
|
} else {
|
||
|
|
irq_func = irq_handle_table[ip].handler;
|
||
|
|
param = irq_handle_table[ip].param;
|
||
|
|
|
||
|
|
/* do interrupt */
|
||
|
|
irq_func(ip, param);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_interrupt_umask(int irq)
|
||
|
|
{
|
||
|
|
mips_unmask_cpu_irq(irq);
|
||
|
|
}
|
||
|
|
|
||
|
|
void rt_hw_interrupt_mask(int irq)
|
||
|
|
{
|
||
|
|
mips_mask_cpu_irq(irq);
|
||
|
|
}
|
||
|
|
/*@}*/
|