/**
  * @brief  This function handles PCD interrupt request.
  * @param  hpcd: PCD handle
  * @retval HAL status
  */
void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
{
  USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
  uint32_t i = 0, ep_intr = 0, epint = 0, epnum = 0;
  uint32_t fifoemptymsk = 0, temp = 0;
  USB_OTG_EPTypeDef *ep;
    
  /* ensure that we are in device mode */
  if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE)
  {
    /* avoid spurious interrupt */
    if(__HAL_PCD_IS_INVALID_INTERRUPT(hpcd)) 
    {
      return;
    }
    
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS))
    {
     /* incorrect mode, acknowledge the interrupt */
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS);
    }
    
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT))
    {
      epnum = 0;
      
      /* Read in the device interrupt bits */
      ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance);
      
      while ( ep_intr )
      {
        if (ep_intr & 0x1)
        {
          epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, epnum);
          
          if(( epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC)
          {
            CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC);
            
            if(hpcd->Init.dma_enable == 1)
            {
              hpcd->OUT_ep[epnum].xfer_count = hpcd->OUT_ep[epnum].maxpacket- (USBx_OUTEP(epnum)->DOEPTSIZ & USB_OTG_DOEPTSIZ_XFRSIZ); 
              hpcd->OUT_ep[epnum].xfer_buff += hpcd->OUT_ep[epnum].maxpacket;            
            }
            
            HAL_PCD_DataOutStageCallback(hpcd, epnum);
            if(hpcd->Init.dma_enable == 1)
            {
              if((epnum == 0) && (hpcd->OUT_ep[epnum].xfer_len == 0))
              {
                 /* this is ZLP, so prepare EP0 for next setup */
                USB_EP0_OutStart(hpcd->Instance, 1, (uint8_t *)hpcd->Setup);
              }              
            }
          }
          
          if(( epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP)
          {
            /* Inform the upper layer that a setup packet is available */
            HAL_PCD_SetupStageCallback(hpcd);
            CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP);
          }
          
          if(( epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS)
          {
            CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS);
          }
        }
        epnum++;
        ep_intr >>= 1;
      }
    }
    
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT))
    {
      /* Read in the device interrupt bits */
      ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance);
      
      epnum = 0;
      
      while ( ep_intr )
      {
        if (ep_intr & 0x1) /* In ITR */
        {
          epint = USB_ReadDevInEPInterrupt(hpcd->Instance, epnum);

           if(( epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC)
          {
            fifoemptymsk = 0x1 << epnum;
            USBx_DEVICE->DIEPEMPMSK &= ~fifoemptymsk;
            
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC);
            
            if (hpcd->Init.dma_enable == 1)
            {
              hpcd->IN_ep[epnum].xfer_buff += hpcd->IN_ep[epnum].maxpacket; 
            }
                                      
            HAL_PCD_DataInStageCallback(hpcd, epnum);

            if (hpcd->Init.dma_enable == 1)
            {
              /* this is ZLP, so prepare EP0 for next setup */
              if((epnum == 0) && (hpcd->IN_ep[epnum].xfer_len == 0))
              {
                /* prepare to rx more setup packets */
                USB_EP0_OutStart(hpcd->Instance, 1, (uint8_t *)hpcd->Setup);
              }
            }           
          }
           if(( epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC);
          }
          if(( epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE);
          }
          if(( epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE);
          }
          if(( epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD);
          }       
          if(( epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE)
          {
            PCD_WriteEmptyTxFifo(hpcd , epnum);
          }
        }
        epnum++;
        ep_intr >>= 1;
      }
    }
    
    /* Handle Resume Interrupt */
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT))
    {
      /* Clear the Remote Wake-up Signaling */
      USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
      
      if(hpcd->LPM_State == LPM_L1)
      {
        hpcd->LPM_State = LPM_L0;
        HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L0_ACTIVE);
      }
      else
      {
        HAL_PCD_ResumeCallback(hpcd);
      }
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT);
    }
    
    /* Handle Suspend Interrupt */
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP))
    {

      if((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
      {
        
        HAL_PCD_SuspendCallback(hpcd);
      }
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP);
    }
    
    /* Handle LPM Interrupt */ 
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT))
    {
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT);      
      if( hpcd->LPM_State == LPM_L0)
      {
        hpcd->LPM_State = LPM_L1;
        hpcd->BESL = (hpcd->Instance->GLPMCFG & USB_OTG_GLPMCFG_BESL) >>2 ;
        HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L1_ACTIVE);
      }
      else
      {
        HAL_PCD_SuspendCallback(hpcd);
      }
    }
示例#2
0
/**
  * @brief  Handles PCD interrupt request.
  * @param  hpcd: PCD handle
  * @retval HAL status
  */
void HAL_PCD_IRQHandler(PCD_HandleTypeDef *hpcd)
{
  USB_OTG_GlobalTypeDef *USBx = hpcd->Instance;
  uint32_t index = 0U, ep_intr = 0U, epint = 0U, epnum = 0U;
  uint32_t fifoemptymsk = 0U, temp = 0U;
  USB_OTG_EPTypeDef *ep = NULL;
  uint32_t hclk = 80000000;
  
  /* ensure that we are in device mode */
  if (USB_GetMode(hpcd->Instance) == USB_OTG_MODE_DEVICE)
  {
    /* avoid spurious interrupt */
    if(__HAL_PCD_IS_INVALID_INTERRUPT(hpcd)) 
    {
      return;
    }
    
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_MMIS))
    {
      /* incorrect mode, acknowledge the interrupt */
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_MMIS);
    }
    
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_OEPINT))
    {
      epnum = 0;
      
      /* Read in the device interrupt bits */
      ep_intr = USB_ReadDevAllOutEpInterrupt(hpcd->Instance);
      
      while (ep_intr)
      {
        if (ep_intr & 0x1)
        {
          epint = USB_ReadDevOutEPInterrupt(hpcd->Instance, epnum);
          
          if (( epint & USB_OTG_DOEPINT_XFRC) == USB_OTG_DOEPINT_XFRC)
          {
            CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_XFRC);

            /* setup/out transaction management for Core ID 310A */
            if (USBx->GSNPSID == USB_OTG_CORE_ID_310A)
            {
              if (!(USBx_OUTEP(0)->DOEPINT & (0x1 << 15)))
                {
                  if (hpcd->Init.dma_enable == 1)
                  {
                  	hpcd->OUT_ep[epnum].xfer_count =
                                                 hpcd->OUT_ep[epnum].maxpacket -
                        (USBx_OUTEP(epnum)->DOEPTSIZ & USB_OTG_DOEPTSIZ_XFRSIZ);

                    hpcd->OUT_ep[epnum].xfer_buff +=
                                                  hpcd->OUT_ep[epnum].maxpacket;
                  }

                HAL_PCD_DataOutStageCallback(hpcd, epnum);

                if (hpcd->Init.dma_enable == 1)
                {
                  if (!epnum && !hpcd->OUT_ep[epnum].xfer_len)
                  {
                    /* this is ZLP, so prepare EP0 for next setup */
                    USB_EP0_OutStart(hpcd->Instance, 1, (uint8_t *)hpcd->Setup);
                  }
                }
              }

              /* Clear the SetPktRcvd flag*/
              USBx_OUTEP(0)->DOEPINT |= (0x1 << 15) | (0x1 << 5);
            }
            else
            {
              if (hpcd->Init.dma_enable == 1)
              {
                hpcd->OUT_ep[epnum].xfer_count =
                                               hpcd->OUT_ep[epnum].maxpacket -
                      (USBx_OUTEP(epnum)->DOEPTSIZ & USB_OTG_DOEPTSIZ_XFRSIZ);
                hpcd->OUT_ep[epnum].xfer_buff += hpcd->OUT_ep[epnum].maxpacket;
              }

              HAL_PCD_DataOutStageCallback(hpcd, epnum);
          
              if (hpcd->Init.dma_enable == 1)
              {
                if (!epnum && !hpcd->OUT_ep[epnum].xfer_len)
                {
                  /* this is ZLP, so prepare EP0 for next setup */
                  USB_EP0_OutStart(hpcd->Instance, 1, (uint8_t *)hpcd->Setup);
                }
              }
            }
          }

          if(( epint & USB_OTG_DOEPINT_STUP) == USB_OTG_DOEPINT_STUP)
          {
            /* Inform the upper layer that a setup packet is available */
            HAL_PCD_SetupStageCallback(hpcd);
            CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_STUP);
          }
          
          if(( epint & USB_OTG_DOEPINT_OTEPDIS) == USB_OTG_DOEPINT_OTEPDIS)
          {
            CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPDIS);
          }
          
#ifdef USB_OTG_DOEPINT_OTEPSPR 
          /* Clear Status Phase Received interrupt */
          if(( epint & USB_OTG_DOEPINT_OTEPSPR) == USB_OTG_DOEPINT_OTEPSPR)
          {
            CLEAR_OUT_EP_INTR(epnum, USB_OTG_DOEPINT_OTEPSPR);
          }
#endif /* USB_OTG_DOEPINT_OTEPSPR */
        }
        epnum++;
        ep_intr >>= 1;
      }
    }
    
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_IEPINT))
    {
      /* Read in the device interrupt bits */
      ep_intr = USB_ReadDevAllInEpInterrupt(hpcd->Instance);
      
      epnum = 0;
      
      while ( ep_intr )
      {
        if (ep_intr & 0x1) /* In ITR */
        {
          epint = USB_ReadDevInEPInterrupt(hpcd->Instance, epnum);
          
          if(( epint & USB_OTG_DIEPINT_XFRC) == USB_OTG_DIEPINT_XFRC)
          {
            fifoemptymsk = 0x1 << epnum;

            // Added for MBED PR #3062
            atomic_clr_u32(&USBx_DEVICE->DIEPEMPMSK,  fifoemptymsk);
            
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_XFRC);
            
            if (hpcd->Init.dma_enable == 1)
            {
              hpcd->IN_ep[epnum].xfer_buff += hpcd->IN_ep[epnum].maxpacket; 
            }
            
            HAL_PCD_DataInStageCallback(hpcd, epnum);
            
            if (hpcd->Init.dma_enable == 1)
            {
              /* this is ZLP, so prepare EP0 for next setup */
              if((epnum == 0) && (hpcd->IN_ep[epnum].xfer_len == 0))
              {
                /* prepare to rx more setup packets */
                USB_EP0_OutStart(hpcd->Instance, 1, (uint8_t *)hpcd->Setup);
              }
            }           
          }
          if(( epint & USB_OTG_DIEPINT_TOC) == USB_OTG_DIEPINT_TOC)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_TOC);
          }
          if(( epint & USB_OTG_DIEPINT_ITTXFE) == USB_OTG_DIEPINT_ITTXFE)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_ITTXFE);
          }
          if(( epint & USB_OTG_DIEPINT_INEPNE) == USB_OTG_DIEPINT_INEPNE)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_INEPNE);
          }
          if(( epint & USB_OTG_DIEPINT_EPDISD) == USB_OTG_DIEPINT_EPDISD)
          {
            CLEAR_IN_EP_INTR(epnum, USB_OTG_DIEPINT_EPDISD);
          }       
          if(( epint & USB_OTG_DIEPINT_TXFE) == USB_OTG_DIEPINT_TXFE)
          {
            PCD_WriteEmptyTxFifo(hpcd , epnum);
          }
        }
        epnum++;
        ep_intr >>= 1;
      }
    }
    
    /* Handle Resume Interrupt */
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT))
    {    
      /* Clear the Remote Wake-up Signaling */
      USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_RWUSIG;
      
      if(hpcd->LPM_State == LPM_L1)
      {
        hpcd->LPM_State = LPM_L0;
        HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L0_ACTIVE);
      }
      else
      {
        HAL_PCD_ResumeCallback(hpcd);
      }
      
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_WKUINT);
    }
    
    /* Handle Suspend Interrupt */
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP))
    {
      if((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
      {
        
        HAL_PCD_SuspendCallback(hpcd);
      }
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_USBSUSP);
    }
    
    /* Handle LPM Interrupt */ 
    if(__HAL_PCD_GET_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT))
    {
      __HAL_PCD_CLEAR_FLAG(hpcd, USB_OTG_GINTSTS_LPMINT);      
      if( hpcd->LPM_State == LPM_L0)
      {   
        hpcd->LPM_State = LPM_L1;
        hpcd->BESL = (hpcd->Instance->GLPMCFG & USB_OTG_GLPMCFG_BESL) >>2 ;  
        HAL_PCDEx_LPM_Callback(hpcd, PCD_LPM_L1_ACTIVE);
      }
      else
      {
        HAL_PCD_SuspendCallback(hpcd);
      }
    }