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/** @file
Provides the parent dispatch service for the standby button SMI source generator.
The SMM Standby Button Dispatch Protocol is defined in
the Intel Platform Innovation Framework for EFI SMM Core Interface Specification
(SMM CIS) Version 0.9.
Copyright (c) 2007, 2009 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.
@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_
#include <FrameworkSmm.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
} EFI_STANDBY_BUTTON_PHASE;
typedef struct {
/// Describes whether the child handler should be invoked upon the entry to the button
/// activation or upon exit (i.e., upon receipt of the button press event or upon release of
/// the event).
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.
**/
typedef
VOID
(EFIAPI *EFI_SMM_STANDBY_BUTTON_DISPATCH)(
IN EFI_HANDLE DispatchHandle,
IN EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT *DispatchContext
);
/**
Provides the parent dispatch service for a given SMI source generator
@param This Pointer to the EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL instance.
@param DispatchFunction Function to install.
@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 generated by the dispatcher to track the function instance.
@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 Pointer to the EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL instance.
@param DispatchHandle Handle of the service to remove.
@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.
**/
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
//
/**
This protocol provices the parent dispatch service for the standby button SMI source generator.
Provides the ability to install child handlers for the given event types.
**/
struct _EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL {
///
/// Installs a child service to be dispatched by this protocol.
///
EFI_SMM_STANDBY_BUTTON_REGISTER Register;\
///
/// Removes a child service dispatched by this protocol.
///
EFI_SMM_STANDBY_BUTTON_UNREGISTER UnRegister;
};
extern EFI_GUID gEfiSmmStandbyButtonDispatchProtocolGuid;
#endif
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