Ejemplo n.º 1
0
/**
* @brief  USBD_DataInStage
*         Handle data in stage
* @param  pdev: device instance
* @param  epnum: endpoint index
* @retval status
*/
static uint8_t USBD_DataInStage(USB_OTG_CORE_HANDLE *pdev , uint8_t epnum)
{
  USB_OTG_EP *ep;

  if(epnum == 0)
  {
    ep = &pdev->dev.in_ep[0];
    if ( pdev->dev.device_state == USB_OTG_EP0_DATA_IN)
    {
      if(ep->rem_data_len > ep->maxpacket)
      {
        ep->rem_data_len -=  ep->maxpacket;
        if(pdev->cfg.dma_enable == 1)
        {
          /* in slave mode this, is handled by the TxFifoEmpty ISR */
          ep->xfer_buff += ep->maxpacket;
        }
        USBD_CtlContinueSendData (pdev,
                                  ep->xfer_buff,
                                  ep->rem_data_len);
      }
      else
      { /* last packet is MPS multiple, so send ZLP packet */
        if((ep->total_data_len % ep->maxpacket == 0) &&
           (ep->total_data_len >= ep->maxpacket) &&
             (ep->total_data_len < ep->ctl_data_len ))
        {

          USBD_CtlContinueSendData(pdev , NULL, 0);
          ep->ctl_data_len = 0;
        }
        else
        {
          if((pdev->dev.cb->EP0_TxSent != NULL)&&
             (pdev->dev.device_status == USB_OTG_CONFIGURED))
          {
            pdev->dev.cb->EP0_TxSent(pdev);
          }
          USBD_CtlReceiveStatus(pdev);
        }
      }
    }
    if (pdev->dev.test_mode == 1)
    {
      USBD_RunTestMode(pdev);
      pdev->dev.test_mode = 0;
    }
  }
  else if((pdev->dev.cb->DataIn != NULL)&&
          (pdev->dev.device_status == USB_OTG_CONFIGURED))
  {
    pdev->dev.cb->DataIn(pdev, epnum);
  }
  return USBD_OK;
}
Ejemplo n.º 2
0
/**
* @brief  USBD_DataInStage
*         Handle data in stage
* @param  pdev: device instance
* @param  epnum: endpoint index
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum, uint8_t *pdata)
{
  USBD_EndpointTypeDef    *pep;

  if(epnum == 0)
  {
    pep = &pdev->ep_in[0];

    if ( pdev->ep0_state == USBD_EP0_DATA_IN)
    {
      if(pep->rem_length > pep->maxpacket)
      {
        pep->rem_length -=  pep->maxpacket;

        USBD_CtlContinueSendData (pdev,
                                  pdata,
                                  pep->rem_length);
      }
      else
      { /* last packet is MPS multiple, so send ZLP packet */
        if((pep->total_length % pep->maxpacket == 0) &&
           (pep->total_length >= pep->maxpacket) &&
             (pep->total_length < pdev->ep0_data_len ))
        {

          USBD_CtlContinueSendData(pdev , NULL, 0);
          pdev->ep0_data_len = 0;
        }
        else
        {
          if((pdev->pClass->EP0_TxSent != NULL)&&
             (pdev->dev_state == USBD_STATE_CONFIGURED))
          {
            pdev->pClass->EP0_TxSent(pdev);
          }
          USBD_CtlReceiveStatus(pdev);
        }
      }
    }
    if (pdev->dev_test_mode == 1)
    {
      USBD_RunTestMode(pdev);
      pdev->dev_test_mode = 0;
    }
  }
  else if((pdev->pClass->DataIn != NULL)&&
          (pdev->dev_state == USBD_STATE_CONFIGURED))
  {
    pdev->pClass->DataIn(pdev, epnum);
  }
  return USBD_OK;
}
Ejemplo n.º 3
0
/**
* @brief  USBD_DataInStage 
*         Handle data in stage
* @param  pdev: device instance
* @param  epnum: endpoint index
* @retval status
*/
USBD_StatusTypeDef USBD_LL_DataInStage(USBD_HandleTypeDef *pdev ,uint8_t epnum, uint8_t *pdata)
{
  USBD_EndpointTypeDef    *pep;
  UNUSED(pdata);
    
  if(epnum == 0) 
  {
    pep = &pdev->ep_in[0];
    
    if ( pdev->ep0_state == USBD_EP0_DATA_IN)
    {
      if(pep->rem_length > pep->maxpacket)
      {
        pep->rem_length -=  pep->maxpacket;
        pdev->pData += pep->maxpacket;
       
        /* Prepare endpoint for premature end of transfer */
        /*
        USBD_LL_PrepareReceive (pdev,
                                0,
                                0);  
        */
        
        USBD_CtlContinueSendData (pdev, 
                                  pdev->pData, 
                                  pep->rem_length);
        
      }
      else
      { /* last packet is MPS multiple, so send ZLP packet */
        if((pep->total_length % pep->maxpacket == 0) &&
           (pep->total_length >= pep->maxpacket) &&
             (pep->total_length < pdev->ep0_data_len ))
        {
          
          /* Prepare endpoint for premature end of transfer */
          /*
          USBD_LL_PrepareReceive (pdev,
                                  0,
                                  0);
          */

          USBD_CtlContinueSendData(pdev , NULL, 0);
          pdev->ep0_data_len = 0;
          
        }
        else
        {
          uint8_t intf;
          for (intf =0; intf < USBD_MAX_NUM_INTERFACES; intf++) {
            if(usbd_is_valid_intf(pdev, intf) && (pdev->interfacesClass[intf].pClass->EP0_TxSent != NULL)&&
               (pdev->dev_state == USBD_STATE_CONFIGURED))
            {
              ((EP0_RxReady_t)PIC(pdev->interfacesClass[intf].pClass->EP0_TxSent))(pdev); 
            }
          }
          USBD_CtlReceiveStatus(pdev);
        }
      }
    }
    if (pdev->dev_test_mode == 1)
    {
      USBD_RunTestMode(pdev); 
      pdev->dev_test_mode = 0;
    }
  }
  else {
    uint8_t intf;
    for (intf = 0; intf < USBD_MAX_NUM_INTERFACES; intf++) {
      if( usbd_is_valid_intf(pdev, intf) && (pdev->interfacesClass[intf].pClass->DataIn != NULL)&&
         (pdev->dev_state == USBD_STATE_CONFIGURED))
      {
        ((DataIn_t)PIC(pdev->interfacesClass[intf].pClass->DataIn))(pdev, epnum); 
      }
    }
  }
  return USBD_OK;
}