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136 lines
5.3 KiB
C
136 lines
5.3 KiB
C
/** @file
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Provides the parent dispatch service for a given Sx-state 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_SX_DISPATCH_H_
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#define _EFI_SMM_SX_DISPATCH_H_
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//
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// Share some common definitions with PI SMM
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//
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#include <Protocol/SmmSxDispatch2.h>
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//
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// Global ID for the Sx SMI Protocol
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//
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#define EFI_SMM_SX_DISPATCH_PROTOCOL_GUID \
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{ \
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0x14fc52be, 0x1dc, 0x426c, {0x91, 0xae, 0xa2, 0x3c, 0x3e, 0x22, 0xa, 0xe8 } \
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}
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typedef struct _EFI_SMM_SX_DISPATCH_PROTOCOL EFI_SMM_SX_DISPATCH_PROTOCOL;
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typedef struct {
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EFI_SLEEP_TYPE Type;
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EFI_SLEEP_PHASE Phase;
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} EFI_SMM_SX_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 Sx state SMI handler.
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@param DispatchHandle The handle of this dispatch function.
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@param DispatchContext The pointer to the dispatch function's context.
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The Type and Phase fields are filled in by the Sx dispatch driver
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prior to invoking this dispatch function. For this interface,
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the Sx driver will call the dispatch function for all Sx type
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and phases, so the Sx state handler(s) must check the Type and
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Phase field of EFI_SMM_SX_DISPATCH_CONTEXT, and act accordingly.
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@return None
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**/
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typedef
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VOID
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(EFIAPI *EFI_SMM_SX_DISPATCH)(
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IN EFI_HANDLE DispatchHandle,
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IN EFI_SMM_SX_DISPATCH_CONTEXT *DispatchContext
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);
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/**
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Register a child SMI source dispatch function with a parent SMM driver.
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@param This The pointer to the EFI_SMM_SX_DISPATCH_PROTOCOL instance.
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@param DispatchFunction The function to install.
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@param DispatchContext The pointer to the dispatch function's context.
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The caller fills in this context before calling
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the register function to indicates to the register
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function which Sx state type and phase the caller
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wishes to be called back on. For this interface,
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the Sx driver will call the registered handlers for
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all Sx type and phases, so the Sx state handler(s)
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must check the Type and Phase field of the Dispatch
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context, and act accordingly.
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@param DispatchHandle The handle of dispatch function, for interfacing
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with the parent Sx state SMM driver.
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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_UNSUPPORTED The Sx driver or hardware does not support that
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Sx Type/Phase.
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@retval EFI_DEVICE_ERROR The Sx 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. Type & Phase are not
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within a valid range.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SMM_SX_REGISTER)(
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IN EFI_SMM_SX_DISPATCH_PROTOCOL *This,
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IN EFI_SMM_SX_DISPATCH DispatchFunction,
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IN EFI_SMM_SX_DISPATCH_CONTEXT *DispatchContext,
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OUT EFI_HANDLE *DispatchHandle
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);
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/**
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Unregisters an Sx-state service
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@param This The pointer to the EFI_SMM_SX_DISPATCH_PROTOCOL instance.
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@param DispatchHandle The handle of the service to remove.
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@retval EFI_SUCCESS The dispatch function has been successfully unregistered, and the
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SMI source has been disabled, if there are no other registered child
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dispatch 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_SX_UNREGISTER)(
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IN EFI_SMM_SX_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 Child Dispatch Protocol
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//
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/**
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Provides the parent dispatch service for a given Sx-state source generator.
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**/
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struct _EFI_SMM_SX_DISPATCH_PROTOCOL {
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EFI_SMM_SX_REGISTER Register; ///< Installs a child service to be dispatched by this protocol.
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EFI_SMM_SX_UNREGISTER UnRegister; ///< Removes a child service dispatched by this protocol.
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};
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extern EFI_GUID gEfiSmmSxDispatchProtocolGuid;
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#endif
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