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#include "csr.h"
#include <stdint.h>
#include "uart.h"
#include "hwtimer.h"
#include "plic.h"
#include <tx_port.h>
#include <tx_api.h>
#define OS_IS_INTERUPT(mcause) (mcause & 0x8000000000000000ull)
#define OS_IS_EXCEPTION(mcause) (~(OS_IS_INTERUPT))
#define OS_IS_TICK_INT(mcause) (mcause == 0x8000000000000007ull)
#define OS_IS_SOFT_INT(mcause) (mcause == 0x8000000000000003ull)
#define OS_IS_EXT_INT(mcause) (mcause == 0x800000000000000bull)
#define OS_IS_TRAP_USER(mcause) (mcause == 0x000000000000000bull)
extern void _tx_timer_interrupt(void);
void trap_handler(uintptr_t mcause, uintptr_t mepc, uintptr_t mtval)
{
if(OS_IS_INTERUPT(mcause))
{
if(OS_IS_TICK_INT(mcause))
{
hwtimer_handler();
_tx_timer_interrupt();
}
else if(OS_IS_EXT_INT(mcause))
{
int ret = plic_irq_intr();
if(ret)
{
puts("[INTERRUPT]: handler irq error!");
while(1) ;
}
}
else
{
puts("[INTERRUPT]: now can't deal with the interrupt!");
while(1) ;
}
}
else
{
puts("[EXCEPTION] : Unkown Error!!");
while(1) ;
}
}
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