Exemplo n.º 1
0
/*******************************************************************************
* 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 */
Exemplo n.º 2
0
/*******************************************************************************
* 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 */
Exemplo n.º 3
0
/*******************************************************************************
* 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 */