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ba53dd4a 1/** @file\r
2 OEM hook status code library functions with no library constructor/destructor\r
3\r
4 Copyright (c) 2006, Intel Corporation\r
5 All rights reserved. This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13 Module Name: Nt32OemHookStatusCodeLib.c\r
14\r
15**/\r
16\r
17#include <stdio.h>\r
18\r
19//\r
20// Cache of WinNtThunk protocol \r
c84c226d 21//\r
22STATIC\r
ba53dd4a 23EFI_WIN_NT_THUNK_PROTOCOL *mWinNt;\r
24\r
25//\r
26// Cache of standard output handle . \r
c84c226d 27//\r
28STATIC\r
ba53dd4a 29HANDLE mStdOut;\r
30\r
31/**\r
32\r
33 Initialize OEM status code device .\r
34\r
be800da9 35 @return Always return EFI_SUCCESS.\r
36\r
ba53dd4a 37**/\r
c8557554 38EFI_STATUS\r
ba53dd4a 39EFIAPI\r
40OemHookStatusCodeInitialize (\r
41 VOID\r
42 )\r
43{\r
44 PEI_NT_THUNK_PPI *NtThunkPpi;\r
45 EFI_STATUS Status;\r
46\r
47 if (FeaturePcdGet (PcdNt32StatusCodeLibUseForPei)) {\r
48 //\r
49 // Locate NtThunkPpi for retrieving standard output handle\r
50 //\r
51 Status = PeiServicesLocatePpi (\r
c84c226d 52 &gPeiNtThunkPpiGuid,\r
53 0,\r
54 NULL,\r
55 (VOID **) &NtThunkPpi\r
56 );\r
ba53dd4a 57\r
58 ASSERT_EFI_ERROR (Status);\r
59\r
60 mWinNt = (EFI_WIN_NT_THUNK_PROTOCOL *) NtThunkPpi->NtThunk ();\r
61 } else {\r
62 EFI_HOB_GUID_TYPE *GuidHob;\r
63\r
64 //\r
65 // Retrieve WinNtThunkProtocol from GUID'ed HOB\r
66 //\r
67 GuidHob = GetFirstGuidHob (&gEfiWinNtThunkProtocolGuid);\r
68 ASSERT (GuidHob != NULL);\r
69 mWinNt = (EFI_WIN_NT_THUNK_PROTOCOL *)(*(UINTN *)(GET_GUID_HOB_DATA (GuidHob)));\r
70 ASSERT (mWinNt != NULL);\r
71 }\r
72\r
73 //\r
74 // Cache standard output handle.\r
75 //\r
76 mStdOut = mWinNt->GetStdHandle (STD_OUTPUT_HANDLE);\r
77\r
be800da9 78 return EFI_SUCCESS;\r
ba53dd4a 79}\r
80\r
81/**\r
82 Report status code to OEM device.\r
83 \r
84