UnixPkg/UnixThunkPpiToProtocolPei/UnixThunkPpiToProtocol.c

   1 /*++
   2
   3 Copyright (c) 2006 - 2008, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14     UnixStuff.c
  15
  16 Abstract:
  17
  18     Tiano PEIM to abstract construction of firmware volume in a Unix environment.
  19
  20 Revision History
  21
  22 --*/
  23
  24 #include "PiPei.h"
  25 #include <Ppi/UnixThunk.h>
  26 #include <Library/DebugLib.h>
  27 #include <Library/PeimEntryPoint.h>
  28 #include <Library/HobLib.h>
  29 #include <Library/PeiServicesLib.h>
  30 #include <Library/PeiServicesTablePointerLib.h>
  31
  32 EFI_STATUS
  33 EFIAPI
  34 PeimInitializeUnixStuff (
  35   IN       EFI_PEI_FILE_HANDLE       FileHandle,
  36   IN CONST EFI_PEI_SERVICES          **PeiServices
  37   )
  38 /*++
  39
  40 Routine Description:
  41
  42   Perform a call-back into the SEC simulator to get Unix Stuff
  43
  44 Arguments:
  45
  46   PeiServices - General purpose services available to every PEIM.
  47
  48 Returns:
  49
  50   None
  51
  52 --*/
  53 // TODO:    FfsHeader - add argument and description to function comment
  54 {
  55   EFI_STATUS              Status;
  56   EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
  57   PEI_UNIX_THUNK_PPI     *PeiUnixService;
  58   VOID                    *Ptr;
  59
  60   DEBUG ((EFI_D_ERROR, "Unix Stuff PEIM Loaded\n"));
  61
  62   Status = (**PeiServices).LocatePpi (
  63                             PeiServices,
  64                             &gPeiUnixThunkPpiGuid,  // GUID
  65                             0,                    // INSTANCE
  66                             &PpiDescriptor,       // EFI_PEI_PPI_DESCRIPTOR
  67                             (VOID **)&PeiUnixService         // PPI
  68                             );
  69   ASSERT_EFI_ERROR (Status);
  70
  71   Ptr = PeiUnixService->UnixThunk ();
  72
  73   BuildGuidDataHob (
  74     &gEfiUnixThunkProtocolGuid,         // Guid
  75     &Ptr,                                // Buffer
  76     sizeof (VOID *)                      // Sizeof Buffer
  77     );
  78   return Status;
  79 }