mirror of https://github.com/acidanthera/audk.git
151 lines
5.5 KiB
C
151 lines
5.5 KiB
C
/** @file
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Provides the parent dispatch service for the standby button SMI source generator.
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The SMM Standby Button Dispatch Protocol is defined in
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the Intel Platform Innovation Framework for EFI SMM Core Interface Specification
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(SMM CIS) Version 0.9.
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Copyright (c) 2007, 2009 Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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@par Revision Reference:
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This Protocol is defined in Framework of EFI SMM Core Interface Spec
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Version 0.9.
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**/
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#ifndef _EFI_SMM_STANDBY_BUTTON_DISPATCH_H_
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#define _EFI_SMM_STANDBY_BUTTON_DISPATCH_H_
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#include <FrameworkSmm.h>
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//
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// Global ID for the Standby Button SMI Protocol
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//
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#define EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL_GUID \
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{ \
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0x78965b98, 0xb0bf, 0x449e, {0x8b, 0x22, 0xd2, 0x91, 0x4e, 0x49, 0x8a, 0x98 } \
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}
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typedef struct _EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL;
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//
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// Related Definitions
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//
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///
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/// Standby Button. Example, Use for changing LEDs before ACPI OS is on.
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/// - DXE/BDS Phase
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/// - OS Install Phase
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///
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typedef enum {
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EfiStandbyButtonEntry,
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EfiStandbyButtonExit
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} EFI_STANDBY_BUTTON_PHASE;
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typedef struct {
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/// Describes whether the child handler should be invoked upon the entry to the button
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/// activation or upon exit (i.e., upon receipt of the button press event or upon release of
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/// the event).
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EFI_STANDBY_BUTTON_PHASE Phase;
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} EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT;
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//
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// Member functions
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//
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/**
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Dispatch function for a Standby Button SMI handler.
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@param DispatchHandle Handle of this dispatch function.
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@param DispatchContext Pointer to the dispatch function's context.
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The DispatchContext fields are filled in
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by the dispatching driver prior to
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invoking this dispatch function.
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**/
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typedef
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VOID
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(EFIAPI *EFI_SMM_STANDBY_BUTTON_DISPATCH)(
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IN EFI_HANDLE DispatchHandle,
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IN EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT *DispatchContext
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);
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/**
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Provides the parent dispatch service for a given SMI source generator
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@param This Pointer to the EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL instance.
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@param DispatchFunction Function to install.
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@param DispatchContext Pointer to the dispatch function's context.
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The caller fills this context in before calling
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the register function to indicate to the register
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function the Standby Button SMI phase for which the dispatch
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function should be invoked.
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@param DispatchHandle Handle generated by the dispatcher to track the function instance.
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@retval EFI_SUCCESS The dispatch function has been successfully
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registered and the SMI source has been enabled.
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@retval EFI_DEVICE_ERROR The driver was unable to enable the SMI source.
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@retval EFI_OUT_OF_RESOURCES Not enough memory (system or SMM) to manage this
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child.
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@retval EFI_INVALID_PARAMETER DispatchContext is invalid. The Standby Button SMI
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phase is not within valid range.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SMM_STANDBY_BUTTON_REGISTER)(
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IN EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL *This,
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IN EFI_SMM_STANDBY_BUTTON_DISPATCH DispatchFunction,
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IN EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT *DispatchContext,
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OUT EFI_HANDLE *DispatchHandle
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);
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/**
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Unregister a child SMI source dispatch function with a parent SMM driver
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@param This Pointer to the EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL instance.
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@param DispatchHandle Handle of the service to remove.
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@retval EFI_SUCCESS The dispatch function has been successfully
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unregistered and the SMI source has been disabled
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if there are no other registered child dispatch
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functions for this SMI source.
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@retval EFI_INVALID_PARAMETER Handle is invalid.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SMM_STANDBY_BUTTON_UNREGISTER)(
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IN EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL *This,
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IN EFI_HANDLE DispatchHandle
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);
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//
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// Interface structure for the SMM Standby Button SMI Dispatch Protocol
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//
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/**
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This protocol provices the parent dispatch service for the standby button SMI source generator.
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Provides the ability to install child handlers for the given event types.
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**/
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struct _EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL {
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///
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/// Installs a child service to be dispatched by this protocol.
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///
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EFI_SMM_STANDBY_BUTTON_REGISTER Register;\
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///
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/// Removes a child service dispatched by this protocol.
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///
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EFI_SMM_STANDBY_BUTTON_UNREGISTER UnRegister;
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};
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extern EFI_GUID gEfiSmmStandbyButtonDispatchProtocolGuid;
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#endif
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