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/*++
Copyright (c) 1999 - 2002, 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.
Module Name:
SmmSxDispatch.h
Abstract:
EFI Smm Sx Smi Child Protocol
Revision History
--*/
#ifndef _EFI_SMM_SX_DISPATCH_H_
#define _EFI_SMM_SX_DISPATCH_H_
//
// Global ID for the Sx SMI Protocol
//
#define EFI_SMM_SX_DISPATCH_PROTOCOL_GUID \
{ \
0x14fc52be, 0x1dc, 0x426c, {0x91, 0xae, 0xa2, 0x3c, 0x3e, 0x22, 0xa, 0xe8} \
}
EFI_FORWARD_DECLARATION (EFI_SMM_SX_DISPATCH_PROTOCOL);
//
// Related Definitions
//
typedef enum {
SxS0,
SxS1,
SxS2,
SxS3,
SxS4,
SxS5,
EfiMaximumSleepType
} EFI_SLEEP_TYPE;
typedef enum {
SxEntry,
SxExit,
EfiMaximumPhase
} EFI_SLEEP_PHASE;
typedef struct {
EFI_SLEEP_TYPE Type;
EFI_SLEEP_PHASE Phase;
} EFI_SMM_SX_DISPATCH_CONTEXT;
//
// Member functions
//
typedef
VOID
(EFIAPI *EFI_SMM_SX_DISPATCH) (
IN EFI_HANDLE DispatchHandle,
IN EFI_SMM_SX_DISPATCH_CONTEXT * DispatchContext
);
/*++
Routine Description:
Dispatch function for a Sx state SMI handler.
Arguments:
DispatchHandle - Handle of this dispatch function.
DispatchContext - Pointer to the dispatch function's context.
The Type and Phase fields are filled in
by the Sx dispatch driver prior to invoking
this dispatch function.
For this intertace, the Sx driver will call the
dispatch function for all Sx type and phases,
so the Sx state handler(s) must check the Type
and Phase field of the Dispatch context and act
accordingly.
Returns:
Nothing
--*/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_SX_REGISTER) (
IN EFI_SMM_SX_DISPATCH_PROTOCOL * This,
IN EFI_SMM_SX_DISPATCH DispatchFunction,
IN EFI_SMM_SX_DISPATCH_CONTEXT * DispatchContext,
OUT EFI_HANDLE * DispatchHandle
);
/*++
Routine Description:
Register a child SMI source dispatch function with a parent SMM driver
Arguments:
This - Protocol instance pointer.
DispatchFunction - Pointer to dispatch function to be invoked for
this SMI source
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 which Sx state type and phase the caller
wishes to be called back on. For this intertace,
the Sx driver will call the registered handlers for
all Sx type and phases, so the Sx state handler(s)
must check the Type and Phase field of the Dispatch
context and act accordingly.
DispatchHandle - Handle of dispatch function, for when interfacing
with the parent Sx state SMM driver.
Returns:
EFI_SUCCESS - The dispatch function has been successfully
registered and the SMI source has been enabled.
EFI_UNSUPPORTED - The Sx driver or hardware does not support that
Sx Type/Phase.
EFI_DEVICE_ERROR - The Sx driver was unable to enable the SMI source.
EFI_OUT_OF_RESOURCES - Not enough memory (system or SMM) to manage this
child.
EFI_INVALID_PARAMETER - DispatchContext is invalid. Type & Phase are not
within valid range.
--*/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_SX_UNREGISTER) (
IN EFI_SMM_SX_DISPATCH_PROTOCOL * This,
IN EFI_HANDLE DispatchHandle
);
/*++
Routine Description:
Unregister a child SMI source dispatch function with a parent SMM driver
Arguments:
This - Protocol instance pointer.
DispatchHandle - Handle of dispatch function to deregister.
Returns:
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.
EFI_INVALID_PARAMETER - Handle is invalid.
other - TBD
--*/
//
// Interface structure for the SMM Child Dispatch Protocol
//
struct _EFI_SMM_SX_DISPATCH_PROTOCOL {
EFI_SMM_SX_REGISTER Register;
EFI_SMM_SX_UNREGISTER UnRegister;
};
extern EFI_GUID gEfiSmmSxDispatchProtocolGuid;
#endif
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