MdeModulePkg/Universal/StatusCodeHandler/Smm/StatusCodeHandlerSmm.c

/** @file
  Status Code Handler Driver which produces general handlers and hook them
  onto the SMM status code router.

  Copyright (c) 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.

**/

#include "StatusCodeHandlerSmm.h"

EFI_SMM_RSC_HANDLER_PROTOCOL  *mRscHandlerProtocol       = NULL;


/**
  Dispatch initialization request to sub status code devices based on 
  customized feature flags.
 
**/
VOID
InitializationDispatcherWorker (
  VOID
  )
{
  EFI_STATUS                        Status;

  //
  // If enable UseSerial, then initialize serial port.
  // if enable UseRuntimeMemory, then initialize runtime memory status code worker.
  //
  if (FeaturePcdGet (PcdStatusCodeUseSerial)) {
    //
    // Call Serial Port Lib API to initialize serial port.
    //
    Status = SerialPortInitialize ();
    ASSERT_EFI_ERROR (Status);
  }
  if (FeaturePcdGet (PcdStatusCodeUseMemory)) {
    Status = MemoryStatusCodeInitializeWorker ();
    ASSERT_EFI_ERROR (Status);
  }
}

/**
  Entry point of SMM Status Code Driver.

  This function is the entry point of SMM Status Code Driver.

  @param  ImageHandle       The firmware allocated handle for the EFI image.
  @param  SystemTable       A pointer to the EFI System Table.
  
  @retval EFI_SUCCESS       The entry point is executed successfully.

**/
EFI_STATUS
EFIAPI
StatusCodeHandlerSmmEntry (
  IN EFI_HANDLE         ImageHandle,
  IN EFI_SYSTEM_TABLE   *SystemTable
  )
{
  EFI_STATUS                Status;

  Status = gSmst->SmmLocateProtocol (
                    &gEfiSmmRscHandlerProtocolGuid,
                    NULL,
                    (VOID **) &mRscHandlerProtocol
                    );
  ASSERT_EFI_ERROR (Status);

  //
  // Dispatch initialization request to supported devices
  //
  InitializationDispatcherWorker ();

  if (FeaturePcdGet (PcdStatusCodeUseSerial)) {
    mRscHandlerProtocol->Register (SerialStatusCodeReportWorker);
  }
  if (FeaturePcdGet (PcdStatusCodeUseMemory)) {
    mRscHandlerProtocol->Register (MemoryStatusCodeReportWorker);
  }

  return EFI_SUCCESS;
}