mirror of https://github.com/acidanthera/audk.git
154 lines
4.7 KiB
C
154 lines
4.7 KiB
C
/*++
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Copyright (c) 1999 - 2002, Intel Corporation. All rights reserved.<BR>
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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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Module Name:
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SmmPowerButtonDispatch.h
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Abstract:
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EFI Smm Power Button Smi Child Protocol
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Revision History
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--*/
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#ifndef _EFI_SMM_POWER_BUTTON_DISPATCH_H_
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#define _EFI_SMM_POWER_BUTTON_DISPATCH_H_
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//
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// Global ID for the Power Button SMI Protocol
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//
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#define EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL_GUID \
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{ \
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0xb709efa0, 0x47a6, 0x4b41, {0xb9, 0x31, 0x12, 0xec, 0xe7, 0xa8, 0xee, 0x56} \
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}
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EFI_FORWARD_DECLARATION (EFI_SMM_POWER_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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// Power 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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PowerButtonEntry,
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PowerButtonExit
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} EFI_POWER_BUTTON_PHASE;
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typedef struct {
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EFI_POWER_BUTTON_PHASE Phase;
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} EFI_SMM_POWER_BUTTON_DISPATCH_CONTEXT;
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//
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// Member functions
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//
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typedef
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VOID
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(EFIAPI *EFI_SMM_POWER_BUTTON_DISPATCH) (
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IN EFI_HANDLE DispatchHandle,
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IN EFI_SMM_POWER_BUTTON_DISPATCH_CONTEXT * DispatchContext
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);
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/*++
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Routine Description:
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Dispatch function for a Power Button SMI handler.
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Arguments:
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DispatchHandle - Handle of this dispatch function.
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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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Returns:
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Nothing
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--*/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SMM_POWER_BUTTON_REGISTER) (
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IN EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL * This,
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IN EFI_SMM_POWER_BUTTON_DISPATCH DispatchFunction,
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IN EFI_SMM_POWER_BUTTON_DISPATCH_CONTEXT * DispatchContext,
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OUT EFI_HANDLE * DispatchHandle
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);
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/*++
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Routine Description:
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Register a child SMI source dispatch function with a parent SMM driver
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Arguments:
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This - Protocol instance pointer.
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DispatchFunction - Pointer to dispatch function to be invoked for
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this SMI source
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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 Power Button SMI phase for which the dispatch
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function should be invoked.
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DispatchHandle - Handle of dispatch function, for when interfacing
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with the parent Sx state SMM driver.
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Returns:
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EFI_SUCCESS - The dispatch function has been successfully
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registered and the SMI source has been enabled.
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EFI_DEVICE_ERROR - The driver was unable to enable the SMI source.
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EFI_OUT_OF_RESOURCES - Not enough memory (system or SMM) to manage this
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child.
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EFI_INVALID_PARAMETER - DispatchContext is invalid. The Power 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_POWER_BUTTON_UNREGISTER) (
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IN EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL * This,
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IN EFI_HANDLE DispatchHandle
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);
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/*++
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Routine Description:
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Unregister a child SMI source dispatch function with a parent SMM driver
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Arguments:
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This - Protocol instance pointer.
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DispatchHandle - Handle of dispatch function to deregister.
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Returns:
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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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EFI_INVALID_PARAMETER - Handle is invalid.
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other - TBD
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--*/
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//
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// Interface structure for the SMM Power Button SMI Dispatch Protocol
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//
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struct _EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL {
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EFI_SMM_POWER_BUTTON_REGISTER Register;
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EFI_SMM_POWER_BUTTON_UNREGISTER UnRegister;
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};
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extern EFI_GUID gEfiSmmPowerButtonDispatchProtocolGuid;
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#endif
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