34 lines
699 B
C
34 lines
699 B
C
|
/*
|
||
|
|
* Copyright (c) 2006-2021, RT-Thread Development Team
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
* 2021/04/24 Juice The first version
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <rthw.h>
|
||
|
|
|
||
|
|
#include <board.h>
|
||
|
|
|
||
|
|
typedef void (*irq_handler_t)(void);
|
||
|
|
extern const irq_handler_t isrTable[];
|
||
|
|
|
||
|
|
uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc, uintptr_t *sp)
|
||
|
|
{
|
||
|
|
uint32_t intNum;
|
||
|
|
if (mcause & 0x80000000) /* For external interrupt. */
|
||
|
|
{
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
intNum = mcause & 0x1FUL;
|
||
|
|
/* Now call the real irq handler for intNum */
|
||
|
|
if (intNum <= 24)
|
||
|
|
{
|
||
|
|
if (isrTable[intNum])isrTable[intNum]();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|