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/** @file
Simple Pointer protocol from the UEFI 2.0 specification.
Abstraction of a very simple pointer device like a mouse or trackball.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __SIMPLE_POINTER_H__
#define __SIMPLE_POINTER_H__
#define EFI_SIMPLE_POINTER_PROTOCOL_GUID \
{ \
0x31878c87, 0xb75, 0x11d5, {0x9a, 0x4f, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
}
typedef struct _EFI_SIMPLE_POINTER_PROTOCOL EFI_SIMPLE_POINTER_PROTOCOL;
//
// Data structures
//
typedef struct {
///
/// The signed distance in counts that the pointer device has been moved along the x-axis.
///
INT32 RelativeMovementX;
///
/// The signed distance in counts that the pointer device has been moved along the y-axis.
///
INT32 RelativeMovementY;
///
/// The signed distance in counts that the pointer device has been moved along the z-axis.
///
INT32 RelativeMovementZ;
///
/// If TRUE, then the left button of the pointer device is being
/// pressed. If FALSE, then the left button of the pointer device is not being pressed.
///
BOOLEAN LeftButton;
///
/// If TRUE, then the right button of the pointer device is being
/// pressed. If FALSE, then the right button of the pointer device is not being pressed.
///
BOOLEAN RightButton;
} EFI_SIMPLE_POINTER_STATE;
typedef struct {
///
/// The resolution of the pointer device on the x-axis in counts/mm.
/// If 0, then the pointer device does not support an x-axis.
///
UINT64 ResolutionX;
///
/// The resolution of the pointer device on the y-axis in counts/mm.
/// If 0, then the pointer device does not support an x-axis.
///
UINT64 ResolutionY;
///
/// The resolution of the pointer device on the z-axis in counts/mm.
/// If 0, then the pointer device does not support an x-axis.
///
UINT64 ResolutionZ;
///
/// TRUE if a left button is present on the pointer device. Otherwise FALSE.
///
BOOLEAN LeftButton;
///
/// TRUE if a right button is present on the pointer device. Otherwise FALSE.
///
BOOLEAN RightButton;
} EFI_SIMPLE_POINTER_MODE;
/**
Resets the pointer device hardware.
@param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL
instance.
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
verification operation of the device during reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning correctly and could not be reset.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SIMPLE_POINTER_RESET)(
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Retrieves the current state of a pointer device.
@param This A pointer to the EFI_SIMPLE_POINTER_PROTOCOL
instance.
@param State A pointer to the state information on the pointer device.
@retval EFI_SUCCESS The state of the pointer device was returned in State.
@retval EFI_NOT_READY The state of the pointer device has not changed since the last call to
GetState().
@retval EFI_DEVICE_ERROR A device error occurred while attempting to retrieve the pointer device's
current state.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SIMPLE_POINTER_GET_STATE)(
IN EFI_SIMPLE_POINTER_PROTOCOL *This,
IN OUT EFI_SIMPLE_POINTER_STATE *State
);
///
/// The EFI_SIMPLE_POINTER_PROTOCOL provides a set of services for a pointer
/// device that can use used as an input device from an application written
/// to this specification. The services include the ability to reset the
/// pointer device, retrieve get the state of the pointer device, and
/// retrieve the capabilities of the pointer device.
///
struct _EFI_SIMPLE_POINTER_PROTOCOL {
EFI_SIMPLE_POINTER_RESET Reset;
EFI_SIMPLE_POINTER_GET_STATE GetState;
///
/// Event to use with WaitForEvent() to wait for input from the pointer device.
///
EFI_EVENT WaitForInput;
///
/// Pointer to EFI_SIMPLE_POINTER_MODE data.
///
EFI_SIMPLE_POINTER_MODE *Mode;
};
extern EFI_GUID gEfiSimplePointerProtocolGuid;
#endif
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