audk/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscSubclassDriverEntryPoint.c

/** @file

Copyright (c) 2004  - 2014, Intel Corporation. All rights reserved.<BR>
                                                                                   

  SPDX-License-Identifier: BSD-2-Clause-Patent

                                                                                   



Module Name:

  MiscSubclassDriverEntryPoint.c

Abstract:

  This driver parses the mMiscSubclassDataTable structure and reports
  any generated data to the DataHub.


**/


#include "CommonHeader.h"
#include "MiscSubclassDriver.h"
#include <Protocol/HiiString.h>
#include <Guid/PlatformInfo.h>


EFI_HII_HANDLE  mHiiHandle;
EFI_HII_STRING_PROTOCOL  *mHiiString;
EFI_PLATFORM_INFO_HOB *mPlatformInfo=NULL;

EFI_STRING
EFIAPI
SmbiosMiscGetString (
  IN EFI_STRING_ID   StringId
  ){

  EFI_STATUS  Status;
  UINTN       StringSize;
  CHAR16      TempString;
  EFI_STRING  String;
  String             = NULL;

  //
  // Retrieve the size of the string in the string package for the BestLanguage
  //
  StringSize = 0;
  Status = mHiiString->GetString (
                         mHiiString,
                         "en-US",
                         mHiiHandle,
                         StringId,
                         &TempString,
                         &StringSize,
                         NULL
                         );
  //
  // If GetString() returns EFI_SUCCESS for a zero size,
  // then there are no supported languages registered for HiiHandle.  If GetString()
  // returns an error other than EFI_BUFFER_TOO_SMALL, then HiiHandle is not present
  // in the HII Database
  //
  if (Status != EFI_BUFFER_TOO_SMALL) {
    goto Error;
  }

  //
  // Allocate a buffer for the return string
  //
  String = AllocateZeroPool (StringSize);
  if (String == NULL) {
    goto Error;
  }

  //
  // Retrieve the string from the string package
  //
  Status = mHiiString->GetString (
                         mHiiString,
                         "en-US",
                         mHiiHandle,
                         StringId,
                         String,
                         &StringSize,
                         NULL
                         );
  if (EFI_ERROR (Status)) {
    //
    // Free the buffer and return NULL if the supported languages can not be retrieved.
    //
    FreePool (String);
    String = NULL;
  }
Error:

  return String;
}

/**
  Standard EFI driver point.  This driver parses the mMiscSubclassDataTable
  structure and reports any generated data to the DataHub.

  @param ImageHandle   - Handle for the image of this driver
  @param SystemTable   - Pointer to the EFI System Table

  @retval EFI_SUCCESS      - The data was successfully reported to the Data Hub.
  @retval EFI_DEVICE_ERROR - Can not locate any protocols

**/
EFI_STATUS
EFIAPI
MiscSubclassDriverEntryPoint (
  IN EFI_HANDLE         ImageHandle,
  IN EFI_SYSTEM_TABLE   *SystemTable
  )
{
  UINTN                Index;
  EFI_STATUS           EfiStatus;
  EFI_SMBIOS_PROTOCOL  *Smbios;
  EFI_PEI_HOB_POINTERS GuidHob;



  GuidHob.Raw = GetHobList ();
  if (GuidHob.Raw != NULL) {
    if ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformInfoGuid, GuidHob.Raw)) != NULL) {
      mPlatformInfo = GET_GUID_HOB_DATA (GuidHob.Guid);
    }
  }
  
  DEBUG ((EFI_D_ERROR, "PlatformInfoHob->BoardId [0x%x]\n", mPlatformInfo->BoardId));
  
  //
  // Retrieve the pointer to the UEFI HII String Protocol
  //
  EfiStatus = gBS->LocateProtocol (
                     &gEfiHiiStringProtocolGuid,
                     NULL,
                     (VOID **) &mHiiString
                     );
  ASSERT_EFI_ERROR (EfiStatus);

  EfiStatus = gBS->LocateProtocol(
                     &gEfiSmbiosProtocolGuid,
                     NULL,
                     (VOID**)&Smbios
                     );

  if (EFI_ERROR(EfiStatus)) {
    DEBUG((EFI_D_ERROR, "Could not locate SMBIOS protocol.  %r\n", EfiStatus));
    return EfiStatus;
  }

  mHiiHandle = HiiAddPackages (
                 &gEfiCallerIdGuid,
                 NULL,
                 MiscSubclassStrings,
                 NULL
                 );
  ASSERT (mHiiHandle != NULL);

  for (Index = 0; Index < mMiscSubclassDataTableEntries; ++Index) {
    //
    // If the entry have a function pointer, just log the data.
    //
    if (mMiscSubclassDataTable[Index].Function != NULL) {
      EfiStatus = (*mMiscSubclassDataTable[Index].Function)(
        mMiscSubclassDataTable[Index].RecordData,
        Smbios
        );

      if (EFI_ERROR(EfiStatus)) {
        DEBUG((EFI_D_ERROR, "Misc smbios store error.  Index=%d, ReturnStatus=%r\n", Index, EfiStatus));
        return EfiStatus;
      }
    }
  }

  return EfiStatus;
}