Use GPIO for key ,I want to use interrput but isn't work

//key port init 

void zclLightControlTouchPanelEnable(void)
{

P0SEL &= ~BV(4); //普通I/O口
P0DIR &= ~BV(4); //输入
//P0INP &= ~BV(4);
P0IEN |= BV(4); //使能中断

P0SEL &= ~BV(5);
P0DIR &= ~BV(5);
//P0INP &= ~BV(5);
P0IEN |= BV(5);

P0SEL &= ~BV(6);
//P0DIR &= ~BV(6);
P0INP &= ~BV(6);
P0IEN |= BV(6);

P0SEL &= ~BV(7);
P0DIR &= ~BV(7);
//P0INP &= ~BV(7);
P0IEN |= BV(7);

PICTL |= (0x1 << 0);
IEN1 |= (0x1 << 5);

P0IF = 0;
P0IFG = 0;
EA = 1;

LIGHT_TURN_OFF_LIGHT0();
LIGHT_TURN_OFF_LIGHT1();
LIGHT_TURN_OFF_LIGHT2();
LIGHT_TURN_OFF_LIGHT3();
}

//interrput 

HAL_ISR_FUNCTION(zclLightControlPort0Isr, P0INT_VECTOR)
{
HAL_ENTER_ISR();
osal_start_timerEx(zclOnOffLight_TaskID,
ZCL_DEVICE_EXIT_NETWORK_EVENT,
3000);
zcl_interruptNo = 0;
if (P0IFG & 0x4) {
P0IEN &= ~BV(4);
zcl_interruptNo |= 1;
//zcl_interruptCont ++;
}
if (P0IFG & 0x5) {
P0IEN &= ~BV(5);
P0_5 = ~P0_5;
zcl_interruptNo |= 2;
// zcl_interruptCont ++;
}
if (P0IFG & 0x7) {
P0IEN &= ~BV(7);
zcl_interruptNo |= 3;
// zcl_interruptCont ++;
}if (P0IFG & 0x6) {
P0IEN &= ~BV(6);
zcl_interruptNo |= 4;
//zcl_interruptCont ++;
}
if( zcl_interruptNo ) {
zcl_factoryReset = 0;
osal_start_timerEx(zclOnOffLight_TaskID,
ZCL_DEVICE_TOUCHPANEL_EVENT,
20);
}

P0IFG = 0;
P0IF = 0;
//zcl_interruptCont ++;
//osal_start_timerEx(zclOnOffLight_TaskID,
// ZCL_DEVICE_EXIT_NETWORK_EVENT,
// 3000);
CLEAR_SLEEP_MODE();
HAL_EXIT_ISR();
}

this code can't goto HAL_ISR_FUNCTION.