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			144 lines
		
	
	
		
			5.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			144 lines
		
	
	
		
			5.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/** @file
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  Simple Pointer protocol from the UEFI 2.0 specification.
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  Abstraction of a very simple pointer device like a mice or tracekballs.
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  Copyright (c) 2006 - 2008, 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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  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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#ifndef __SIMPLE_POINTER_H__
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#define __SIMPLE_POINTER_H__
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#define EFI_SIMPLE_POINTER_PROTOCOL_GUID \
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  { \
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    0x31878c87, 0xb75, 0x11d5, {0x9a, 0x4f, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
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  }
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typedef struct _EFI_SIMPLE_POINTER_PROTOCOL  EFI_SIMPLE_POINTER_PROTOCOL;
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//
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// Data structures
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//
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typedef struct {
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  ///
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  /// The signed distance in counts that the pointer device has been moved along the x-axis.
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  ///
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  INT32   RelativeMovementX;
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  ///
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  /// The signed distance in counts that the pointer device has been moved along the y-axis.
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  ///
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  INT32   RelativeMovementY;
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  ///
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  /// The signed distance in counts that the pointer device has been moved along the z-axis.
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  ///
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  INT32   RelativeMovementZ;
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  ///
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  /// If TRUE, then the left button of the pointer device is being
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  /// pressed. If FALSE, then the left button of the pointer device is not being pressed.
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  ///
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  BOOLEAN LeftButton;
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  ///
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  /// If TRUE, then the right button of the pointer device is being
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  /// pressed. If FALSE, then the right button of the pointer device is not being pressed.
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  ///
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  BOOLEAN RightButton;
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} EFI_SIMPLE_POINTER_STATE;
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typedef struct {
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  ///
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  /// The resolution of the pointer device on the x-axis in counts/mm.
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  /// If 0, then the pointer device does not support an x-axis.
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  ///
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  UINT64  ResolutionX;
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  ///
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  /// The resolution of the pointer device on the y-axis in counts/mm.
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  /// If 0, then the pointer device does not support an x-axis.
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  ///
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  UINT64  ResolutionY;
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  ///
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  /// The resolution of the pointer device on the z-axis in counts/mm.
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  /// If 0, then the pointer device does not support an x-axis.
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  ///
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  UINT64  ResolutionZ;
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  ///
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  /// TRUE if a left button is present on the pointer device. Otherwise FALSE.
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  ///
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  BOOLEAN LeftButton;
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  ///
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  /// TRUE if a right button is present on the pointer device. Otherwise FALSE.
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  ///
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  BOOLEAN RightButton;
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} EFI_SIMPLE_POINTER_MODE;
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/**                                                                 
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  Resets the pointer device hardware.
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  @param  This                  A pointer to the EFI_SIMPLE_POINTER_PROTOCOL
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                                instance.                                   
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  @param  ExtendedVerification  Indicates that the driver may perform a more exhaustive
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                                verification operation of the device during reset.                                       
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  @retval EFI_SUCCESS           The device was reset.
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  @retval EFI_DEVICE_ERROR      The device is not functioning correctly and could not be reset.  
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SIMPLE_POINTER_RESET)(
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  IN EFI_SIMPLE_POINTER_PROTOCOL            *This,
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  IN BOOLEAN                                ExtendedVerification
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  );
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/**                                                                 
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  Retrieves the current state of a pointer device.
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  @param  This                  A pointer to the EFI_SIMPLE_POINTER_PROTOCOL
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                                instance.                                   
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  @param  State                 A pointer to the state information on the pointer device.
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  @retval EFI_SUCCESS           The state of the pointer device was returned in State.
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  @retval EFI_NOT_READY         The state of the pointer device has not changed since the last call to
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                                GetState().                                                           
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  @retval EFI_DEVICE_ERROR      A device error occurred while attempting to retrieve the pointer device's
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                                current state.                                                           
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SIMPLE_POINTER_GET_STATE)(
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  IN EFI_SIMPLE_POINTER_PROTOCOL          *This,
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  IN OUT EFI_SIMPLE_POINTER_STATE         *State
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  );
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///
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/// The EFI_SIMPLE_POINTER_PROTOCOL provides a set of services for a pointer 
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/// device that can use used as an input device from an application written 
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/// to this specification. The services include the ability to reset the 
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/// pointer device, retrieve get the state of the pointer device, and 
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/// retrieve the capabilities of the pointer device.
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///
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struct _EFI_SIMPLE_POINTER_PROTOCOL {
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  EFI_SIMPLE_POINTER_RESET      Reset;
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  EFI_SIMPLE_POINTER_GET_STATE  GetState;
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  ///
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  /// Event to use with WaitForEvent() to wait for input from the pointer device.
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  ///
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  EFI_EVENT                     WaitForInput;
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  ///
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  /// Pointer to EFI_SIMPLE_POINTER_MODE data.
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  ///
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  EFI_SIMPLE_POINTER_MODE       *Mode;
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};
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extern EFI_GUID gEfiSimplePointerProtocolGuid;
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#endif
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