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| Rev | Author | Line No. | Line |
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| 2726 | vana | 1 | /*++ |
| 2 | |||
| 3 | Copyright (c) 1998 Intel Corporation |
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| 4 | |||
| 5 | Module Name: |
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| 6 | |||
| 7 | |||
| 8 | Abstract: |
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| 9 | |||
| 10 | |||
| 11 | |||
| 12 | |||
| 13 | Revision History |
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| 14 | |||
| 15 | --*/ |
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| 16 | |||
| 17 | #include "lib.h" |
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| 18 | |||
| 19 | VOID |
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| 20 | EFIDebugVariable ( |
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| 21 | VOID |
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| 22 | ); |
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| 23 | |||
| 24 | VOID |
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| 25 | InitializeLib ( |
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| 26 | IN EFI_HANDLE ImageHandle, |
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| 27 | IN EFI_SYSTEM_TABLE *SystemTable |
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| 28 | ) |
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| 29 | /*++ |
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| 30 | |||
| 31 | Routine Description: |
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| 32 | |||
| 33 | Initializes EFI library for use |
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| 34 | |||
| 35 | Arguments: |
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| 36 | |||
| 37 | Firmware's EFI system table |
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| 38 | |||
| 39 | Returns: |
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| 40 | |||
| 41 | None |
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| 42 | |||
| 43 | --*/ |
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| 44 | { |
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| 45 | EFI_LOADED_IMAGE *LoadedImage; |
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| 46 | EFI_STATUS Status; |
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| 47 | CHAR8 *LangCode; |
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| 48 | |||
| 49 | if (!LibInitialized) { |
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| 50 | LibInitialized = TRUE; |
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| 51 | LibFwInstance = FALSE; |
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| 52 | |||
| 53 | // |
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| 54 | // Set up global pointer to the system table, boot services table, |
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| 55 | // and runtime services table |
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| 56 | // |
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| 57 | |||
| 58 | ST = SystemTable; |
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| 59 | BS = SystemTable->BootServices; |
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| 60 | RT = SystemTable->RuntimeServices; |
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| 61 | // ASSERT (CheckCrc(0, &ST->Hdr)); |
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| 62 | // ASSERT (CheckCrc(0, &BS->Hdr)); |
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| 63 | // ASSERT (CheckCrc(0, &RT->Hdr)); |
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| 64 | |||
| 65 | |||
| 66 | // |
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| 67 | // Initialize pool allocation type |
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| 68 | // |
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| 69 | |||
| 70 | if (ImageHandle) { |
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| 71 | Status = BS->HandleProtocol ( |
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| 72 | ImageHandle, |
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| 73 | &LoadedImageProtocol, |
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| 74 | (VOID*)&LoadedImage |
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| 75 | ); |
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| 76 | |||
| 77 | if (!EFI_ERROR(Status)) { |
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| 78 | PoolAllocationType = LoadedImage->ImageDataType; |
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| 79 | } |
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| 80 | |||
| 81 | EFIDebugVariable (); |
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| 82 | } |
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| 83 | |||
| 84 | // |
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| 85 | // Initialize Guid table |
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| 86 | // |
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| 87 | |||
| 88 | InitializeGuid(); |
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| 89 | |||
| 90 | InitializeLibPlatform(ImageHandle,SystemTable); |
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| 91 | } |
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| 92 | |||
| 93 | // |
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| 94 | // |
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| 95 | // |
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| 96 | |||
| 97 | if (ImageHandle && UnicodeInterface == &LibStubUnicodeInterface) { |
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| 98 | LangCode = LibGetVariable (VarLanguage, &EfiGlobalVariable); |
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| 99 | InitializeUnicodeSupport (LangCode); |
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| 100 | if (LangCode) { |
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| 101 | FreePool (LangCode); |
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| 102 | } |
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| 103 | } |
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| 104 | } |
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| 105 | |||
| 106 | VOID |
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| 107 | InitializeUnicodeSupport ( |
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| 108 | CHAR8 *LangCode |
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| 109 | ) |
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| 110 | { |
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| 111 | EFI_UNICODE_COLLATION_INTERFACE *Ui; |
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| 112 | EFI_STATUS Status; |
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| 113 | CHAR8 *Languages; |
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| 114 | UINTN Index, Position, Length; |
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| 115 | UINTN NoHandles; |
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| 116 | EFI_HANDLE *Handles; |
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| 117 | |||
| 118 | // |
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| 119 | // If we don't know it, lookup the current language code |
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| 120 | // |
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| 121 | |||
| 122 | LibLocateHandle (ByProtocol, &UnicodeCollationProtocol, NULL, &NoHandles, &Handles); |
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| 123 | if (!LangCode || !NoHandles) { |
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| 124 | goto Done; |
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| 125 | } |
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| 126 | |||
| 127 | // |
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| 128 | // Check all driver's for a matching language code |
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| 129 | // |
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| 130 | |||
| 131 | for (Index=0; Index < NoHandles; Index++) { |
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| 132 | Status = BS->HandleProtocol (Handles[Index], &UnicodeCollationProtocol, (VOID*)&Ui); |
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| 133 | if (EFI_ERROR(Status)) { |
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| 134 | continue; |
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| 135 | } |
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| 136 | |||
| 137 | // |
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| 138 | // Check for a matching language code |
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| 139 | // |
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| 140 | |||
| 141 | Languages = Ui->SupportedLanguages; |
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| 142 | Length = strlena(Languages); |
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| 143 | for (Position=0; Position < Length; Position += ISO_639_2_ENTRY_SIZE) { |
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| 144 | |||
| 145 | // |
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| 146 | // If this code matches, use this driver |
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| 147 | // |
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| 148 | |||
| 149 | if (CompareMem (Languages+Position, LangCode, ISO_639_2_ENTRY_SIZE) == 0) { |
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| 150 | UnicodeInterface = Ui; |
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| 151 | goto Done; |
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| 152 | } |
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| 153 | } |
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| 154 | } |
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| 155 | |||
| 156 | Done: |
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| 157 | // |
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| 158 | // Cleanup |
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| 159 | // |
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| 160 | |||
| 161 | if (Handles) { |
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| 162 | FreePool (Handles); |
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| 163 | } |
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| 164 | } |
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| 165 | |||
| 166 | VOID |
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| 167 | EFIDebugVariable ( |
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| 168 | VOID |
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| 169 | ) |
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| 170 | { |
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| 171 | EFI_STATUS Status; |
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| 172 | UINT32 Attributes; |
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| 173 | UINTN DataSize; |
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| 174 | UINTN NewEFIDebug; |
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| 175 | |||
| 176 | DataSize = sizeof(EFIDebug); |
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| 177 | Status = RT->GetVariable(L"EFIDebug", &EfiGlobalVariable, &Attributes, &DataSize, &NewEFIDebug); |
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| 178 | if (!EFI_ERROR(Status)) { |
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| 179 | EFIDebug = NewEFIDebug; |
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| 180 | } |
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| 181 | } |