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MmPowerButtonDispatch.h File Reference
#include <Pi/PiMmCis.h>

Go to the source code of this file.

Data Structures

struct  EFI_MM_POWER_BUTTON_REGISTER_CONTEXT
 
struct  _EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL
 

Macros

#define EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL_GUID
 

Typedefs

typedef struct _EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL
 
typedef EFI_STATUS(EFIAPI * EFI_MM_POWER_BUTTON_REGISTER) (IN CONST EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL *This, IN EFI_MM_HANDLER_ENTRY_POINT DispatchFunction, IN EFI_MM_POWER_BUTTON_REGISTER_CONTEXT *RegisterContext, OUT EFI_HANDLE *DispatchHandle)
 
typedef EFI_STATUS(EFIAPI * EFI_MM_POWER_BUTTON_UNREGISTER) (IN CONST EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL *This, IN EFI_HANDLE DispatchHandle)
 

Enumerations

enum  EFI_POWER_BUTTON_PHASE { EfiPowerButtonEntry , EfiPowerButtonExit , EfiPowerButtonMax }
 

Variables

EFI_GUID gEfiMmPowerButtonDispatchProtocolGuid
 

Detailed Description

MM Power Button Dispatch Protocol as defined in PI 1.5 Specification Volume 4 Management Mode Core Interface.

This protocol provides the parent dispatch service for the power button MMI source generator.

Copyright (c) 2017, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Revision Reference:
This protocol is from PI Version 1.5.

Definition in file MmPowerButtonDispatch.h.

Macro Definition Documentation

◆ EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL_GUID

#define EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL_GUID
Value:
{ \
0x1b1183fa, 0x1823, 0x46a7, {0x88, 0x72, 0x9c, 0x57, 0x87, 0x55, 0x40, 0x9d } \
}

Definition at line 20 of file MmPowerButtonDispatch.h.

Typedef Documentation

◆ EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL

◆ EFI_MM_POWER_BUTTON_REGISTER

typedef EFI_STATUS(EFIAPI * EFI_MM_POWER_BUTTON_REGISTER) (IN CONST EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL *This, IN EFI_MM_HANDLER_ENTRY_POINT DispatchFunction, IN EFI_MM_POWER_BUTTON_REGISTER_CONTEXT *RegisterContext, OUT EFI_HANDLE *DispatchHandle)

Provides the parent dispatch service for a power button event.

This service registers a function (DispatchFunction) which will be called when an MMI is generated because the power button was pressed or released, as specified by RegisterContext. On return, DispatchHandle contains a unique handle which may be used later to unregister the function using UnRegister(). The DispatchFunction will be called with Context set to the same value as was passed into this function in RegisterContext and with CommBuffer and CommBufferSize set to NULL.

Parameters
[in]ThisPointer to the EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL instance.
[in]DispatchFunctionFunction to register for handler when power button is pressed or released.
[in]RegisterContextPointer to the dispatch function's context. The caller fills in this context before calling the Register() function to indicate to the Register() function the power button MMI phase for which the dispatch function should be invoked.
[out]DispatchHandleHandle generated by the dispatcher to track the function instance.
Return values
EFI_SUCCESSThe dispatch function has been successfully registered and the MMI source has been enabled.
EFI_DEVICE_ERRORThe driver was unable to enable the MMI source.
EFI_INVALID_PARAMETERRegisterContext is invalid. The power button input value is not within valid range.
EFI_OUT_OF_RESOURCESThere is not enough memory (system or MM) to manage this child.

Definition at line 71 of file MmPowerButtonDispatch.h.

◆ EFI_MM_POWER_BUTTON_UNREGISTER

typedef EFI_STATUS(EFIAPI * EFI_MM_POWER_BUTTON_UNREGISTER) (IN CONST EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL *This, IN EFI_HANDLE DispatchHandle)

Unregisters a power-button service.

This service removes the handler associated with DispatchHandle so that it will no longer be called when the standby button is pressed or released.

Parameters
[in]ThisPointer to the EFI_MM_POWER_BUTTON_DISPATCH_PROTOCOL instance.
[in]DispatchHandleHandle of the service to remove.
Return values
EFI_SUCCESSThe service has been successfully removed.
EFI_INVALID_PARAMETERThe DispatchHandle was not valid.

Definition at line 92 of file MmPowerButtonDispatch.h.

Enumeration Type Documentation

◆ EFI_POWER_BUTTON_PHASE

Power Button phases.

Definition at line 28 of file MmPowerButtonDispatch.h.