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+/** @file
+ This file declares EFI Smm Standby Button Smi Child Protocol
+
+ Copyright (c) 2006, 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.
+
+ Module Name: SmmStandbyButtonDispatch.h
+
+ @par Revision Reference:
+ This Protocol is defined in Framework of EFI SMM Core Interface Spec
+ Version 0.9.
+
+**/
+
+#ifndef _EFI_SMM_STANDBY_BUTTON_DISPATCH_H_
+#define _EFI_SMM_STANDBY_BUTTON_DISPATCH_H_
+
+//
+// Global ID for the Standby Button SMI Protocol
+//
+#define EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL_GUID \
+ { \
+ 0x78965b98, 0xb0bf, 0x449e, {0x8b, 0x22, 0xd2, 0x91, 0x4e, 0x49, 0x8a, 0x98 } \
+ }
+
+typedef struct _EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL;
+
+//
+// Related Definitions
+//
+//
+// Standby Button. Example, Use for changing LEDs before ACPI OS is on.
+// - DXE/BDS Phase
+// - OS Install Phase
+//
+typedef enum {
+ EfiStandbyButtonEntry,
+ EfiStandbyButtonExit,
+ EfiStandbyButtonMax
+} EFI_STANDBY_BUTTON_PHASE;
+
+typedef struct {
+ EFI_STANDBY_BUTTON_PHASE Phase;
+} EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT;
+
+//
+// Member functions
+//
+/**
+ Dispatch function for a Standby Button SMI handler.
+
+ @param DispatchHandle Handle of this dispatch function.
+ @param DispatchContext Pointer to the dispatch function's context.
+ The DispatchContext fields are filled in
+ by the dispatching driver prior to
+ invoking this dispatch function.
+
+ @return Nothing
+
+**/
+typedef
+VOID
+(EFIAPI *EFI_SMM_STANDBY_BUTTON_DISPATCH) (
+ IN EFI_HANDLE DispatchHandle,
+ IN EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT *DispatchContext
+ );
+
+/**
+ Register a child SMI source dispatch function with a parent SMM driver
+
+ @param This Protocol instance pointer.
+ @param DispatchFunction Pointer to dispatch function to be invoked for
+ this SMI source
+ @param DispatchContext Pointer to the dispatch function's context.
+ The caller fills this context in before calling
+ the register function to indicate to the register
+ function the Standby Button SMI phase for which the dispatch
+ function should be invoked.
+ @param DispatchHandle Handle of dispatch function, for when interfacing
+ with the parent Sx state SMM driver.
+
+ @retval EFI_SUCCESS The dispatch function has been successfully
+ registered and the SMI source has been enabled.
+ @retval EFI_DEVICE_ERROR The driver was unable to enable the SMI source.
+ @retval EFI_OUT_OF_RESOURCES Not enough memory (system or SMM) to manage this
+ child.
+ @retval EFI_INVALID_PARAMETER DispatchContext is invalid. The Standby Button SMI
+ phase is not within valid range.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_SMM_STANDBY_BUTTON_REGISTER) (
+ IN EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL *This,
+ IN EFI_SMM_STANDBY_BUTTON_DISPATCH DispatchFunction,
+ IN EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT *DispatchContext,
+ OUT EFI_HANDLE *DispatchHandle
+ );
+
+/**
+ Unregister a child SMI source dispatch function with a parent SMM driver
+
+ @param This Protocol instance pointer.
+ @param DispatchHandle Handle of dispatch function to deregister.
+
+ @retval EFI_SUCCESS The dispatch function has been successfully
+ unregistered and the SMI source has been disabled
+ if there are no other registered child dispatch
+ functions for this SMI source.
+ @retval EFI_INVALID_PARAMETER Handle is invalid.
+ @retval other TBD
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_SMM_STANDBY_BUTTON_UNREGISTER) (
+ IN EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL *This,
+ IN EFI_HANDLE DispatchHandle
+ );
+
+//
+// Interface structure for the SMM Standby Button SMI Dispatch Protocol
+//
+/**
+ @par Protocol Description:
+ Provides the parent dispatch service for the standby button SMI source generator.
+
+ @param Register
+ Installs a child service to be dispatched by this protocol.
+
+ @param UnRegister
+ Removes a child service dispatched by this protocol.
+
+**/
+struct _EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL {
+ EFI_SMM_STANDBY_BUTTON_REGISTER Register;
+ EFI_SMM_STANDBY_BUTTON_UNREGISTER UnRegister;
+};
+
+extern EFI_GUID gEfiSmmStandbyButtonDispatchProtocolGuid;
+
+#endif