C++ (Cpp) _usb_dci_vusb20_recv_data Examples

Example #1

File: dev_main.c Project: channinglan/9223_dia

/*FUNCTION*-------------------------------------------------------------
*
*  Function Name  : _usb_device_recv_data
*  Returned Value : USB_OK or error code
*  Comments       :
*        Receives data on a specified endpoint.
*
*END*-----------------------------------------------------------------*/
uint_8 _usb_device_recv_data
   (
      /* [IN] the USB_USB_dev_initialize state structure */
      _usb_device_handle         handle,
            
      /* [IN] the Endpoint number */
      uint_8                     ep_num,
            
      /* [IN] buffer to receive data */
      uchar_ptr                  buff_ptr,
            
      /* [IN] length of the transfer */
      uint_32                    size
   )
{ /* Body */

   #ifdef _DEVICE_DEBUG_
      DEBUG_LOG_TRACE("_usb_device_recv_data");
   #endif

   uint_8                           error = USB_OK;
   XD_STRUCT_PTR                    xd_ptr;
   USB_DEV_STATE_STRUCT_PTR         usb_dev_ptr;
   
   usb_dev_ptr = (USB_DEV_STATE_STRUCT_PTR)handle;
   
   USB_lock();

   if (!usb_dev_ptr->XD_ENTRIES) 
   {
      USB_unlock();
      #ifdef _DEVICE_DEBUG_
         DEBUG_LOG_TRACE("_usb_device_recv_data, transfer in progress");
      #endif
      return USB_STATUS_TRANSFER_IN_PROGRESS;
   } /* Endif */

   /* Get a transfer descriptor for the specified endpoint 
   ** and direction 
   */
   USB_XD_QGET(usb_dev_ptr->XD_HEAD, usb_dev_ptr->XD_TAIL, xd_ptr);
   
   usb_dev_ptr->XD_ENTRIES--;

   /* Initialize the new transfer descriptor */      
   xd_ptr->EP_NUM = ep_num;
   xd_ptr->BDIRECTION = USB_RECV;
   xd_ptr->WTOTALLENGTH = size;
   xd_ptr->WSOFAR = 0;
   xd_ptr->WSTARTADDRESS = buff_ptr;
   
   xd_ptr->BSTATUS = USB_STATUS_TRANSFER_ACCEPTED;

  error = _usb_dci_vusb20_recv_data(handle, xd_ptr);

   USB_unlock();
   
   if (error) 
   {
      #ifdef _DEVICE_DEBUG_
         DEBUG_LOG_TRACE("_usb_device_recv_data, receive failed");
      #endif
      return USBERR_RX_FAILED;
   } /* Endif */
   
   return error;

} /* EndBody */

Example #2

File: dev_recv.c Project: tomsparrow25/wifisdk_for_wm

/*FUNCTION*-------------------------------------------------------------
*
*  Function Name  : _usb_device_recv_data
*  Returned Value : USB_OK or error code
*  Comments       :
*        Receives data on a specified endpoint.
*
*END*-----------------------------------------------------------------*/
uint8_t _usb_device_recv_data(
				   /* [IN] the USB_USB_dev_initialize state structure */
				   _usb_device_handle handle,
				   /* [IN] the Endpoint number */
				   uint8_t ep_num,
				   /* [IN] buffer to receive data */
				   uint8_t * buff_ptr,
				   /* [IN] length of the transfer */
				   uint32_t size)
{				/* Body */
	uint8_t error = USB_OK;
	XD_STRUCT_PTR xd_ptr;
	USB_DEV_STATE_STRUCT_PTR usb_dev_ptr;

	TOMBSTONE_USB_DEVICE_DEBUG(0x40210000);

#ifdef _DEVICE_DEBUG_
	DEBUG_LOG_TRACE("_usb_device_recv_data");
#endif

	usb_dev_ptr = (USB_DEV_STATE_STRUCT_PTR) handle;

#ifdef ENABLE_DCACHE
   /********************************************************
   If system has a data cache, it is assumed that buffer
   passed to this routine will be aligned on a cache line
   boundry. The following code will invalidate the
   buffer before passing it to hardware driver.
   ********************************************************/
	USB_dcache_invalidate_mlines((void *)buff_ptr, size);

#endif

	USB_device_lock();

	if (!usb_dev_ptr->XD_ENTRIES) {
		TOMBSTONE_USB_DEVICE_DEBUG(0x40210001);

		USB_device_unlock();
#ifdef _DEVICE_DEBUG_
		DEBUG_LOG_TRACE("_usb_device_recv_data, transfer in progress");
#endif
		TOMBSTONE_USB_DEVICE_DEBUG(0x40210002);
		return USB_STATUS_TRANSFER_IN_PROGRESS;
	}

	/* Endif */
	/* Get a transfer descriptor for the specified endpoint
	 ** and direction
	 */
	USB_XD_QGET(usb_dev_ptr->XD_HEAD, usb_dev_ptr->XD_TAIL, xd_ptr);

	usb_dev_ptr->XD_ENTRIES--;

	/* Initialize the new transfer descriptor */
	xd_ptr->EP_NUM = ep_num;
	xd_ptr->BDIRECTION = USB_RECV;
	xd_ptr->WTOTALLENGTH = size;
	xd_ptr->WSOFAR = 0;
	xd_ptr->WSTARTADDRESS = buff_ptr;

	xd_ptr->BSTATUS = USB_STATUS_TRANSFER_ACCEPTED;

	TOMBSTONE_USB_DEVICE_DEBUG(0x40210003);
	error = _usb_dci_vusb20_recv_data(handle, xd_ptr);
	TOMBSTONE_USB_DEVICE_DEBUG(0x40210004);

	USB_device_unlock();

	if (error) {
		TOMBSTONE_USB_DEVICE_DEBUG(0x40210005);
#ifdef _DEVICE_DEBUG_
		DEBUG_LOG_TRACE("_usb_device_recv_data, receive failed");
#endif
		return USBERR_RX_FAILED;
	}
	/* Endif */
	TOMBSTONE_USB_DEVICE_DEBUG(0x40210099);
	return error;
}				/* EndBody */