MdeModulePkg/Universal/ReportStatusCodeRouter/Smm/ReportStatusCodeRouterSmm.h

/** @file
  Internal include file for Report Status Code Router Driver.

  Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
  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.

**/

#ifndef __REPORT_STATUS_CODE_ROUTER_SMM_H__
#define __REPORT_STATUS_CODE_ROUTER_SMM_H__


#include <Protocol/SmmReportStatusCodeHandler.h>
#include <Protocol/SmmStatusCode.h>

#include <Library/BaseLib.h>
#include <Library/SynchronizationLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/SmmServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>

#define SMM_RSC_HANDLER_CALLBACK_ENTRY_SIGNATURE  SIGNATURE_32 ('s', 'h', 'c', 'e')

typedef struct {
  UINTN                         Signature;
  EFI_SMM_RSC_HANDLER_CALLBACK  RscHandlerCallback;
  LIST_ENTRY                    Node;
} SMM_RSC_HANDLER_CALLBACK_ENTRY;

/**
  Register the callback function for ReportStatusCode() notification.
  
  When this function is called the function pointer is added to an internal list and any future calls to
  ReportStatusCode() will be forwarded to the Callback function.

  @param[in] Callback           A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is called
                                when a call to ReportStatusCode() occurs.
                        
  @retval EFI_SUCCESS           Function was successfully registered.
  @retval EFI_INVALID_PARAMETER The callback function was NULL.
  @retval EFI_OUT_OF_RESOURCES  The internal buffer ran out of space. No more functions can be
                                registered.
  @retval EFI_ALREADY_STARTED   The function was already registered. It can't be registered again.
  
**/
EFI_STATUS
EFIAPI
Register (
  IN EFI_SMM_RSC_HANDLER_CALLBACK   Callback
  );

/**
  Remove a previously registered callback function from the notification list.
  
  ReportStatusCode() messages will no longer be forwarded to the Callback function.
  
  @param[in] Callback           A pointer to a function of type EFI_PEI_RSC_HANDLER_CALLBACK that is to be
                                unregistered.

  @retval EFI_SUCCESS           The function was successfully unregistered.
  @retval EFI_INVALID_PARAMETER The callback function was NULL.
  @retval EFI_NOT_FOUND         The callback function was not found to be unregistered.
                        
**/
EFI_STATUS
EFIAPI
Unregister (
  IN EFI_SMM_RSC_HANDLER_CALLBACK Callback
  );

/**
  Provides an interface that a software module can call to report a status code.

  @param  This             EFI_SMM_STATUS_CODE_PROTOCOL instance.
  @param  Type             Indicates the type of status code being reported.
  @param  Value            Describes the current status of a hardware or software entity.
                           This included information about the class and subclass that is used to
                           classify the entity as well as an operation.
  @param  Instance         The enumeration of a hardware or software entity within
                           the system. Valid instance numbers start with 1.
  @param  CallerId         This optional parameter may be used to identify the caller.
                           This parameter allows the status code driver to apply different rules to
                           different callers.
  @param  Data             This optional parameter may be used to pass additional data.

  @retval EFI_SUCCESS           The function completed successfully
  @retval EFI_DEVICE_ERROR      The function should not be completed due to a device error.

**/
EFI_STATUS
EFIAPI
ReportDispatcher (
  IN CONST EFI_SMM_STATUS_CODE_PROTOCOL  *This,
  IN EFI_STATUS_CODE_TYPE                Type,
  IN EFI_STATUS_CODE_VALUE               Value,
  IN UINT32                              Instance,
  IN CONST EFI_GUID                      *CallerId  OPTIONAL,
  IN EFI_STATUS_CODE_DATA                *Data      OPTIONAL
  );

#endif