| 0,0 → 1,181 |
|---|
| /*++ |
| |
| Copyright (c) 1998 Intel Corporation |
| |
| Module Name: |
| |
| |
| Abstract: |
| |
| |
| |
| |
| Revision History |
| |
| --*/ |
| |
| #include "lib.h" |
| |
| VOID |
| EFIDebugVariable ( |
| VOID |
| ); |
| |
| VOID |
| InitializeLib ( |
| IN EFI_HANDLE ImageHandle, |
| IN EFI_SYSTEM_TABLE *SystemTable |
| ) |
| /*++ |
| |
| Routine Description: |
| |
| Initializes EFI library for use |
| |
| Arguments: |
| |
| Firmware's EFI system table |
| |
| Returns: |
| |
| None |
| |
| --*/ |
| { |
| EFI_LOADED_IMAGE *LoadedImage; |
| EFI_STATUS Status; |
| CHAR8 *LangCode; |
| |
| if (!LibInitialized) { |
| LibInitialized = TRUE; |
| LibFwInstance = FALSE; |
| |
| // |
| // Set up global pointer to the system table, boot services table, |
| // and runtime services table |
| // |
| |
| ST = SystemTable; |
| BS = SystemTable->BootServices; |
| RT = SystemTable->RuntimeServices; |
| // ASSERT (CheckCrc(0, &ST->Hdr)); |
| // ASSERT (CheckCrc(0, &BS->Hdr)); |
| // ASSERT (CheckCrc(0, &RT->Hdr)); |
| |
| |
| // |
| // Initialize pool allocation type |
| // |
| |
| if (ImageHandle) { |
| Status = BS->HandleProtocol ( |
| ImageHandle, |
| &LoadedImageProtocol, |
| (VOID*)&LoadedImage |
| ); |
| |
| if (!EFI_ERROR(Status)) { |
| PoolAllocationType = LoadedImage->ImageDataType; |
| } |
| |
| EFIDebugVariable (); |
| } |
| |
| // |
| // Initialize Guid table |
| // |
| |
| InitializeGuid(); |
| |
| InitializeLibPlatform(ImageHandle,SystemTable); |
| } |
| |
| // |
| // |
| // |
| |
| if (ImageHandle && UnicodeInterface == &LibStubUnicodeInterface) { |
| LangCode = LibGetVariable (VarLanguage, &EfiGlobalVariable); |
| InitializeUnicodeSupport (LangCode); |
| if (LangCode) { |
| FreePool (LangCode); |
| } |
| } |
| } |
| |
| VOID |
| InitializeUnicodeSupport ( |
| CHAR8 *LangCode |
| ) |
| { |
| EFI_UNICODE_COLLATION_INTERFACE *Ui; |
| EFI_STATUS Status; |
| CHAR8 *Languages; |
| UINTN Index, Position, Length; |
| UINTN NoHandles; |
| EFI_HANDLE *Handles; |
| |
| // |
| // If we don't know it, lookup the current language code |
| // |
| |
| LibLocateHandle (ByProtocol, &UnicodeCollationProtocol, NULL, &NoHandles, &Handles); |
| if (!LangCode || !NoHandles) { |
| goto Done; |
| } |
| |
| // |
| // Check all driver's for a matching language code |
| // |
| |
| for (Index=0; Index < NoHandles; Index++) { |
| Status = BS->HandleProtocol (Handles[Index], &UnicodeCollationProtocol, (VOID*)&Ui); |
| if (EFI_ERROR(Status)) { |
| continue; |
| } |
| |
| // |
| // Check for a matching language code |
| // |
| |
| Languages = Ui->SupportedLanguages; |
| Length = strlena(Languages); |
| for (Position=0; Position < Length; Position += ISO_639_2_ENTRY_SIZE) { |
| |
| // |
| // If this code matches, use this driver |
| // |
| |
| if (CompareMem (Languages+Position, LangCode, ISO_639_2_ENTRY_SIZE) == 0) { |
| UnicodeInterface = Ui; |
| goto Done; |
| } |
| } |
| } |
| |
| Done: |
| // |
| // Cleanup |
| // |
| |
| if (Handles) { |
| FreePool (Handles); |
| } |
| } |
| |
| VOID |
| EFIDebugVariable ( |
| VOID |
| ) |
| { |
| EFI_STATUS Status; |
| UINT32 Attributes; |
| UINTN DataSize; |
| UINTN NewEFIDebug; |
| |
| DataSize = sizeof(EFIDebug); |
| Status = RT->GetVariable(L"EFIDebug", &EfiGlobalVariable, &Attributes, &DataSize, &NewEFIDebug); |
| if (!EFI_ERROR(Status)) { |
| EFIDebug = NewEFIDebug; |
| } |
| } |