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142 lines
5.0 KiB
C
142 lines
5.0 KiB
C
/** @file
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Provides the parent dispatch service for the power button SMI source generator.
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Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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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_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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typedef struct _EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL 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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/**
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Dispatch function for a Power Button SMI handler.
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@param[in] DispatchHandle The handle of this dispatch function.
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@param[in] DispatchContext The 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_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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Provides the parent dispatch service for a given SMI source generator
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@param[in] This The pointer to the
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EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL instance.
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@param[in] DispatchFunction The function to install.
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@param[in] DispatchContext The pointer to the dispatch function's context.
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Indicates to the register
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function the Power Button SMI phase for which
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to invoke the dispatch function.
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@param[out] DispatchHandle Handle generated by the dispatcher to track
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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 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_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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Unregisters a power-button service.
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@param[in] This The pointer to the EFI_SMM_POWER_BUTTON_DISPATCH_PROTOCOL instance.
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@param[in] DispatchHandle The 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
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disabled, if there are no other registered
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child dispatch functions for this SMI
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source.
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@retval EFI_INVALID_PARAMETER The 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_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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@par Protocol Description:
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Provides the parent dispatch service for the SMM power button SMI source generator.
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**/
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struct _EFI_SMM_POWER_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_POWER_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_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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