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138 lines
4.5 KiB
C
138 lines
4.5 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 mouse or trackball.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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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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