/*******************************************************************************
* Function Name : USB_Istr
* Description : ISTR events interrupt service routine
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void USB_Istr(void)
{
uint32_t i=0;
__IO uint32_t EP[8];
wIstr = _GetISTR();
#if (IMR_MSK & ISTR_SOF)
if (wIstr & ISTR_SOF & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_SOF);
bIntPackSOF++;
#ifdef SOF_CALLBACK
SOF_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_CTR)
if (wIstr & ISTR_CTR & wInterrupt_Mask)
{
/* servicing of the endpoint correct transfer interrupt */
/* clear of the CTR flag into the sub */
CTR_LP();
#ifdef CTR_CALLBACK
CTR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_RESET)
if (wIstr & ISTR_RESET & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_RESET);
Device_Property.Reset();
#ifdef RESET_CALLBACK
RESET_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_DOVR)
if (wIstr & ISTR_DOVR & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_DOVR);
#ifdef DOVR_CALLBACK
DOVR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_ERR)
if (wIstr & ISTR_ERR & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_ERR);
#ifdef ERR_CALLBACK
ERR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_WKUP)
if (wIstr & ISTR_WKUP & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_WKUP);
Resume(RESUME_EXTERNAL);
#ifdef WKUP_CALLBACK
WKUP_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_SUSP)
if (wIstr & ISTR_SUSP & wInterrupt_Mask)
{
/* check if SUSPEND is possible */
if (fSuspendEnabled)
{
Suspend();
}
else
{
/* if not possible then resume after xx ms */
Resume(RESUME_LATER);
}
/* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
_SetISTR((uint16_t)CLR_SUSP);
#ifdef SUSP_CALLBACK
SUSP_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_ESOF)
if (wIstr & ISTR_ESOF & wInterrupt_Mask)
{
/* clear ESOF flag in ISTR */
_SetISTR((uint16_t)CLR_ESOF);
if ((_GetFNR()&FNR_RXDP)!=0)
{
/* increment ESOF counter */
esof_counter ++;
/* test if we enter in ESOF more than 3 times with FSUSP =0 and RXDP =1=>> possible missing SUSP flag*/
if ((esof_counter >3)&&((_GetCNTR()&CNTR_FSUSP)==0))
{
/* this a sequence to apply a force RESET*/
/*Store CNTR value */
wCNTR = _GetCNTR();
/*Store endpoints registers status */
for (i=0;i<8;i++) EP[i] = _GetENDPOINT(i);
/*apply FRES */
wCNTR|=CNTR_FRES;
_SetCNTR(wCNTR);
/*clear FRES*/
wCNTR&=~CNTR_FRES;
_SetCNTR(wCNTR);
/*disable ESOF interrupt*/
//wCNTR &= ~CNTR_ESOFM;
//_SetCNTR(wCNTR);
/*poll for RESET flag in ISTR*/
while((_GetISTR()&ISTR_RESET) == 0);
/* clear RESET flag in ISTR */
_SetISTR((uint16_t)CLR_RESET);
/*restore Enpoints*/
for (i=0;i<8;i++)
_SetENDPOINT(i, EP[i]);
esof_counter = 0;
}
}
else
{
esof_counter = 0;
}
/* resume handling timing is made with ESOFs */
Resume(RESUME_ESOF); /* request without change of the machine state */
#ifdef ESOF_CALLBACK
ESOF_Callback();
#endif
}
#endif
/*disable ESOF interrupt*/
wCNTR = _GetCNTR();
wCNTR &= ~CNTR_ESOFM;
_SetCNTR(wCNTR);
} /* USB_Istr */
/*******************************************************************************
* Function Name : USB_Istr
* Description : ISTR events interrupt service routine
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void USB_Istr(void)
{
wIstr = _GetISTR();
#if (IMR_MSK & ISTR_CTR)
if (wIstr & ISTR_CTR & wInterrupt_Mask)
{
/* servicing of the endpoint correct transfer interrupt */
/* clear of the CTR flag into the sub */
CTR_LP();
#ifdef CTR_CALLBACK
CTR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_RESET)
if (wIstr & ISTR_RESET & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_RESET);
Device_Property.Reset();
#ifdef RESET_CALLBACK
RESET_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_DOVR)
if (wIstr & ISTR_DOVR & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_DOVR);
#ifdef DOVR_CALLBACK
DOVR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_ERR)
if (wIstr & ISTR_ERR & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_ERR);
#ifdef ERR_CALLBACK
ERR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_WKUP)
if (wIstr & ISTR_WKUP & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_WKUP);
Resume(RESUME_EXTERNAL);
#ifdef WKUP_CALLBACK
WKUP_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_SUSP)
if (wIstr & ISTR_SUSP & wInterrupt_Mask)
{
/* check if SUSPEND is possible */
if (fSuspendEnabled)
{
Suspend();
}
else
{
/* if not possible then resume after xx ms */
Resume(RESUME_LATER);
}
/* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
_SetISTR((uint16_t)CLR_SUSP);
#ifdef SUSP_CALLBACK
SUSP_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_SOF)
if (wIstr & ISTR_SOF & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_SOF);
bIntPackSOF++;
#ifdef SOF_CALLBACK
SOF_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_ESOF)
if (wIstr & ISTR_ESOF & wInterrupt_Mask)
{
_SetISTR((uint16_t)CLR_ESOF);
/* resume handling timing is made with ESOFs */
Resume(RESUME_ESOF); /* request without change of the machine state */
#ifdef ESOF_CALLBACK
ESOF_Callback();
#endif
}
#endif
} /* USB_Istr */
/*******************************************************************************
* Function Name : USB_Istr
* Description : ISTR events interrupt service routine
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void USB_Istr(void)
{
wIstr = _GetISTR();
#if (IMR_MSK & ISTR_RESET) //如果设置了USB中断
if (wIstr & ISTR_RESET & wInterrupt_Mask)
{
//ISTR 程式只能清0，无法写1，
//用要清除的位为0，其他位写为1
_SetISTR((u16)CLR_RESET);
Device_Property.Reset();
#ifdef RESET_CALLBACK
RESET_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_DOVR)
if (wIstr & ISTR_DOVR & wInterrupt_Mask)
{
_SetISTR((u16)CLR_DOVR);
#ifdef DOVR_CALLBACK
DOVR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_ERR)
if (wIstr & ISTR_ERR & wInterrupt_Mask)
{
_SetISTR((u16)CLR_ERR);
#ifdef ERR_CALLBACK
ERR_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_WKUP)
if (wIstr & ISTR_WKUP & wInterrupt_Mask)
{
_SetISTR((u16)CLR_WKUP);
Resume(RESUME_EXTERNAL);
#ifdef WKUP_CALLBACK
WKUP_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_SUSP)
if (wIstr & ISTR_SUSP & wInterrupt_Mask)//USB掛起
{
/* check if SUSPEND is possible */
if (fSuspendEnabled) //usb掛起全能
{
Suspend(); //直接硬件掛起
}
else
{
//软件掛起
/* if not possible then resume after xx ms */
Resume(RESUME_LATER); // 枚举掛起
}
/* clear of the ISTR bit must be done after setting of CNTR_FSUSP */
_SetISTR((u16)CLR_SUSP);
#ifdef SUSP_CALLBACK
SUSP_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_SOF) //帧首标志 //1ms enter one time
if (wIstr & ISTR_SOF & wInterrupt_Mask)
{
_SetISTR((u16)CLR_SOF);
bIntPackSOF++; //帧指针加一
#ifdef SOF_CALLBACK
SOF_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_ESOF)
if (wIstr & ISTR_ESOF & wInterrupt_Mask)
{
_SetISTR((u16)CLR_ESOF); //帧期望标志
/* resume handling timing is made with ESOFs */
Resume(RESUME_ESOF); /* request without change of the machine state */
#ifdef ESOF_CALLBACK
ESOF_Callback();
#endif
}
#endif
/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
#if (IMR_MSK & ISTR_CTR)
if (wIstr & ISTR_CTR & wInterrupt_Mask)
{
/* servicing of the endpoint correct transfer interrupt */
/* clear of the CTR flag into the sub */
CTR_LP();
#ifdef CTR_CALLBACK
CTR_Callback();
#endif
}
#endif
} /* USB_Istr */