3a228b9ed5
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8893 6f19259b-4bc3-4df7-8a09-765794883524
151 lines
5.2 KiB
C
151 lines
5.2 KiB
C
/** @file
|
|
Provides the parent dispatch service for a given SMI source generator.
|
|
|
|
Copyright (c) 2007 - 2009, 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.
|
|
|
|
@par Revision Reference:
|
|
This Protocol is defined in Framework for EFI SMM Core Interface Spec
|
|
Version 0.9.
|
|
|
|
**/
|
|
|
|
#ifndef _EFI_SMM_SW_DISPATCH_H_
|
|
#define _EFI_SMM_SW_DISPATCH_H_
|
|
|
|
|
|
//
|
|
// Global ID for the SW SMI Protocol
|
|
//
|
|
#define EFI_SMM_SW_DISPATCH_PROTOCOL_GUID \
|
|
{ \
|
|
0xe541b773, 0xdd11, 0x420c, {0xb0, 0x26, 0xdf, 0x99, 0x36, 0x53, 0xf8, 0xbf } \
|
|
}
|
|
|
|
typedef struct _EFI_SMM_SW_DISPATCH_PROTOCOL EFI_SMM_SW_DISPATCH_PROTOCOL;
|
|
|
|
//
|
|
// Related Definitions
|
|
//
|
|
//
|
|
// A particular chipset may not support all possible software SMI input values.
|
|
// For example, the ICH supports only values 00h to 0FFh. The parent only allows a single
|
|
// child registration for each SwSmiInputValue.
|
|
//
|
|
typedef struct {
|
|
UINTN SwSmiInputValue;
|
|
} EFI_SMM_SW_DISPATCH_CONTEXT;
|
|
|
|
//
|
|
// Member functions
|
|
//
|
|
/**
|
|
Dispatch function for a Software SMI handler.
|
|
|
|
@param DispatchHandle Handle of this dispatch function.
|
|
@param DispatchContext Pointer to the dispatch function's context.
|
|
The SwSmiInputValue field is filled in
|
|
by the software dispatch driver prior to
|
|
invoking this dispatch function.
|
|
The dispatch function will only be called
|
|
for input values for which it is registered.
|
|
|
|
@return None
|
|
|
|
**/
|
|
typedef
|
|
VOID
|
|
(EFIAPI *EFI_SMM_SW_DISPATCH)(
|
|
IN EFI_HANDLE DispatchHandle,
|
|
IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext
|
|
);
|
|
|
|
/**
|
|
Register a child SMI source dispatch function with a parent SMM driver
|
|
|
|
@param This Pointer to the EFI_SMM_SW_DISPATCH_PROTOCOL instance.
|
|
@param DispatchFunction Function to install.
|
|
@param 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 Software SMI input value the
|
|
dispatch function should be invoked for.
|
|
@param DispatchHandle Handle generated by the dispatcher to track the function instance.
|
|
|
|
@retval EFI_SUCCESS The dispatch function has been successfully
|
|
registered and the SMI source has been enabled.
|
|
@retval EFI_DEVICE_ERROR The SW driver was unable to enable the SMI source.
|
|
@retval EFI_OUT_OF_RESOURCES Not enough memory (system or SMM) to manage this
|
|
child.
|
|
@retval EFI_INVALID_PARAMETER DispatchContext is invalid. The SW SMI input value
|
|
is not within valid range.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_SW_REGISTER)(
|
|
IN EFI_SMM_SW_DISPATCH_PROTOCOL *This,
|
|
IN EFI_SMM_SW_DISPATCH DispatchFunction,
|
|
IN EFI_SMM_SW_DISPATCH_CONTEXT *DispatchContext,
|
|
OUT EFI_HANDLE *DispatchHandle
|
|
);
|
|
|
|
/**
|
|
Unregister a child SMI source dispatch function with a parent SMM driver
|
|
|
|
@param This Pointer to the EFI_SMM_SW_DISPATCH_PROTOCOL instance.
|
|
@param DispatchHandle Handle of the service to remove.
|
|
|
|
@retval 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.
|
|
@retval EFI_INVALID_PARAMETER Handle is invalid.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_SW_UNREGISTER)(
|
|
IN EFI_SMM_SW_DISPATCH_PROTOCOL *This,
|
|
IN EFI_HANDLE DispatchHandle
|
|
);
|
|
|
|
|
|
//
|
|
// Interface structure for the SMM Software SMI Dispatch Protocol
|
|
//
|
|
/**
|
|
Provides the parent dispatch service for a given SMI source generator.
|
|
**/
|
|
///
|
|
/// Inconsistent with specification here:
|
|
/// In framework spec SmmCis, this definition is named as _EFI_SMM_ICHN_DISPATCH_PROTOCOL by mistake.
|
|
///
|
|
struct _EFI_SMM_SW_DISPATCH_PROTOCOL {
|
|
///
|
|
/// Installs a child service to be dispatched by this protocol.
|
|
///
|
|
EFI_SMM_SW_REGISTER Register;
|
|
|
|
///
|
|
/// Removes a child service dispatched by this protocol.
|
|
///
|
|
EFI_SMM_SW_UNREGISTER UnRegister;
|
|
|
|
///
|
|
/// A read-only field that describes the maximum value that can be used
|
|
/// in the EFI_SMM_SW_DISPATCH_PROTOCOL.Register() service.
|
|
///
|
|
UINTN MaximumSwiValue;
|
|
};
|
|
|
|
extern EFI_GUID gEfiSmmSwDispatchProtocolGuid;
|
|
|
|
#endif
|