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			git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
		
			
				
	
	
		
			460 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			460 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*++
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| 
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| Copyright (c) 2006, Intel Corporation                                                         
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| All rights reserved. This program and the accompanying materials                          
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| are licensed and made available under the terms and conditions of the BSD License         
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| which accompanies this distribution.  The full text of the license may be found at        
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| http://opensource.org/licenses/bsd-license.php                                            
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|                                                                                           
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| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
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| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
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| 
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|   Module Name:
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| 
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|     hid.c
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| 
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|   Abstract:
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| 
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|     HID class request
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| 
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|   Revision History
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| 
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| --*/
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| 
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| //
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| // Function to get HID descriptor
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| //
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| EFI_STATUS
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| UsbGetHidDescriptor (
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|   IN  EFI_USB_IO_PROTOCOL        *UsbIo,
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|   IN  UINT8                      InterfaceNum,
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|   OUT EFI_USB_HID_DESCRIPTOR     *HidDescriptor
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|   )
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| /*++
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| 
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|   Routine Description:
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|     Get Hid Descriptor
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL
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|     InterfaceNum      -   Hid interface number
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|     HidDescriptor     -   Caller allocated buffer to store Usb hid descriptor
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|                           if successfully returned.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   Request.RequestType = 0x81;
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|   Request.Request     = 0x06;
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|   Request.Value       = (UINT16) (0x21 << 8);
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|   Request.Index       = InterfaceNum;
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|   Request.Length      = sizeof (EFI_USB_HID_DESCRIPTOR);
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbDataIn,
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|                     TIMEOUT_VALUE,
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|                     HidDescriptor,
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|                     sizeof (EFI_USB_HID_DESCRIPTOR),
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|                     &Status
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|                     );
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| 
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|   return Result;
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| 
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| }
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| //
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| // Function to get Report Class descriptor
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| //
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| EFI_STATUS
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| UsbGetReportDescriptor (
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|   IN  EFI_USB_IO_PROTOCOL     *UsbIo,
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|   IN  UINT8                   InterfaceNum,
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|   IN  UINT16                  DescriptorSize,
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|   OUT UINT8                   *DescriptorBuffer
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|   )
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| /*++
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| 
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|   Routine Description:
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|     get Report Class descriptor
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL.
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|     InterfaceNum      -   Report interface number.
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|     DescriptorSize    -   Length of DescriptorBuffer.
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|     DescriptorBuffer  -   Caller allocated buffer to store Usb report descriptor
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|                           if successfully returned.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   //
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|   // Fill Device request packet
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|   //
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|   Request.RequestType = 0x81;
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|   Request.Request     = 0x06;
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|   Request.Value       = (UINT16) (0x22 << 8);
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|   Request.Index       = InterfaceNum;
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|   Request.Length      = DescriptorSize;
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbDataIn,
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|                     TIMEOUT_VALUE,
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|                     DescriptorBuffer,
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|                     DescriptorSize,
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|                     &Status
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|                     );
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| 
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|   return Result;
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| 
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| }
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| //
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| // Following are HID class request
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| //
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| EFI_STATUS
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| UsbGetProtocolRequest (
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|   IN EFI_USB_IO_PROTOCOL     *UsbIo,
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|   IN UINT8                   Interface,
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|   IN UINT8                   *Protocol
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|   )
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| /*++
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| 
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|   Routine Description:
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|     Get Hid Protocol Request
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL
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|     Interface         -   Which interface the caller wants to get protocol
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|     Protocol          -   Protocol value returned.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   //
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|   // Fill Device request packet
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|   //
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|   Request.RequestType = 0xa1;
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|   //
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|   // 10100001b;
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|   //
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|   Request.Request = EFI_USB_GET_PROTOCOL_REQUEST;
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|   Request.Value   = 0;
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|   Request.Index   = Interface;
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|   Request.Length  = 1;
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbDataIn,
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|                     TIMEOUT_VALUE,
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|                     Protocol,
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|                     sizeof (UINT8),
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|                     &Status
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|                     );
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| 
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|   return Result;
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| }
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| 
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| 
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| EFI_STATUS
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| UsbSetProtocolRequest (
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|   IN EFI_USB_IO_PROTOCOL     *UsbIo,
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|   IN UINT8                   Interface,
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|   IN UINT8                   Protocol
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|   )
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| /*++
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| 
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|   Routine Description:
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|     Set Hid Protocol Request
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL
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|     Interface         -   Which interface the caller wants to set protocol
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|     Protocol          -   Protocol value the caller wants to set.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   //
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|   // Fill Device request packet
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|   //
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|   Request.RequestType = 0x21;
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|   //
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|   // 00100001b;
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|   //
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|   Request.Request = EFI_USB_SET_PROTOCOL_REQUEST;
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|   Request.Value   = Protocol;
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|   Request.Index   = Interface;
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|   Request.Length  = 0;
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbNoData,
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|                     TIMEOUT_VALUE,
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|                     NULL,
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|                     0,
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|                     &Status
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|                     );
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|   return Result;
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| }
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| 
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| 
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| EFI_STATUS
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| UsbSetIdleRequest (
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|   IN EFI_USB_IO_PROTOCOL     *UsbIo,
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|   IN UINT8                   Interface,
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|   IN UINT8                   ReportId,
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|   IN UINT8                   Duration
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|   )
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| /*++
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| 
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|   Routine Description:
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|     Set Idel request.
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL
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|     Interface         -   Which interface the caller wants to set.
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|     ReportId          -   Which report the caller wants to set.
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|     Duration          -   Idle rate the caller wants to set.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   //
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|   // Fill Device request packet
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|   //
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|   Request.RequestType = 0x21;
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|   //
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|   // 00100001b;
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|   //
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|   Request.Request = EFI_USB_SET_IDLE_REQUEST;
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|   Request.Value   = (UINT16) ((Duration << 8) | ReportId);
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|   Request.Index   = Interface;
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|   Request.Length  = 0;
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbNoData,
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|                     TIMEOUT_VALUE,
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|                     NULL,
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|                     0,
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|                     &Status
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|                     );
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|   return Result;
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| }
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| 
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| EFI_STATUS
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| UsbGetIdleRequest (
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|   IN  EFI_USB_IO_PROTOCOL     *UsbIo,
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|   IN  UINT8                   Interface,
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|   IN  UINT8                   ReportId,
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|   OUT UINT8                   *Duration
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|   )
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| /*++
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| 
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|   Routine Description:
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|     Get Idel request.
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL
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|     Interface         -   Which interface the caller wants to get.
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|     ReportId          -   Which report the caller wants to get.
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|     Duration          -   Idle rate the caller wants to get.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   //
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|   // Fill Device request packet
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|   //
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|   Request.RequestType = 0xa1;
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|   //
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|   // 10100001b;
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|   //
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|   Request.Request = EFI_USB_GET_IDLE_REQUEST;
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|   Request.Value   = ReportId;
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|   Request.Index   = Interface;
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|   Request.Length  = 1;
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbDataIn,
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|                     TIMEOUT_VALUE,
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|                     Duration,
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|                     1,
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|                     &Status
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|                     );
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| 
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|   return Result;
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| }
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| 
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| 
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| EFI_STATUS
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| UsbSetReportRequest (
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|   IN EFI_USB_IO_PROTOCOL     *UsbIo,
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|   IN UINT8                   Interface,
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|   IN UINT8                   ReportId,
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|   IN UINT8                   ReportType,
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|   IN UINT16                  ReportLen,
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|   IN UINT8                   *Report
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|   )
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| /*++
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| 
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|   Routine Description:
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|     Hid Set Report request.
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL
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|     Interface         -   Which interface the caller wants to set.
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|     ReportId          -   Which report the caller wants to set.
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|     ReportType        -   Type of report.
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|     ReportLen         -   Length of report descriptor.
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|     Report            -   Report Descriptor buffer.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   //
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|   // Fill Device request packet
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|   //
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|   Request.RequestType = 0x21;
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|   //
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|   // 00100001b;
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|   //
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|   Request.Request = EFI_USB_SET_REPORT_REQUEST;
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|   Request.Value   = (UINT16) ((ReportType << 8) | ReportId);
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|   Request.Index   = Interface;
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|   Request.Length  = ReportLen;
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbDataOut,
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|                     TIMEOUT_VALUE,
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|                     Report,
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|                     ReportLen,
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|                     &Status
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|                     );
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| 
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|   return Result;
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| }
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| 
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| EFI_STATUS
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| UsbGetReportRequest (
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|   IN EFI_USB_IO_PROTOCOL     *UsbIo,
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|   IN UINT8                   Interface,
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|   IN UINT8                   ReportId,
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|   IN UINT8                   ReportType,
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|   IN UINT16                  ReportLen,
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|   IN UINT8                   *Report
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|   )
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| /*++
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| 
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|   Routine Description:
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|     Hid Set Report request.
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| 
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|   Arguments:
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|     UsbIo             -   EFI_USB_IO_PROTOCOL
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|     Interface         -   Which interface the caller wants to set.
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|     ReportId          -   Which report the caller wants to set.
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|     ReportType        -   Type of report.
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|     ReportLen         -   Length of report descriptor.
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|     Report            -   Caller allocated buffer to store Report Descriptor.
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| 
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|   Returns:
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|     EFI_SUCCESS
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|     EFI_DEVICE_ERROR
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|     EFI_TIMEOUT
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| 
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| --*/
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| {
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|   UINT32                  Status;
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|   EFI_STATUS              Result;
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|   EFI_USB_DEVICE_REQUEST  Request;
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| 
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|   //
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|   // Fill Device request packet
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|   //
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|   Request.RequestType = 0xa1;
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|   //
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|   // 10100001b;
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|   //
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|   Request.Request = EFI_USB_GET_REPORT_REQUEST;
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|   Request.Value   = (UINT16) ((ReportType << 8) | ReportId);
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|   Request.Index   = Interface;
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|   Request.Length  = ReportLen;
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| 
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|   Result = UsbIo->UsbControlTransfer (
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|                     UsbIo,
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|                     &Request,
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|                     EfiUsbDataIn,
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|                     TIMEOUT_VALUE,
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|                     Report,
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|                     ReportLen,
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|                     &Status
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|                     );
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| 
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|   return Result;
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| }
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