mirror of https://github.com/acidanthera/audk.git
136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/*++
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Copyright (c) 2006 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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language.c
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Abstract:
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Language settings
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Revision History
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--*/
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//
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// Include common header file for this module.
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//
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#include "CommonHeader.h"
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#include "BdsString.h"
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#include "Language.h"
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//
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// Default language code, currently is English
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//
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CHAR8 *mDefaultLangCode = "eng";
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VOID
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InitializeLanguage (
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BOOLEAN LangCodesSettingRequired
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)
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/*++
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Routine Description:
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Determine the current language that will be used
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based on language related EFI Variables
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Arguments:
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LangCodesSettingRequired - If required to set LangCode variable
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Returns:
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--*/
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{
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EFI_STATUS Status;
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UINTN Index;
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UINTN Size;
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CHAR8 LangCode[ISO_639_2_ENTRY_SIZE];
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CHAR8 *LangCodes;
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CHAR16 *LanguageString;
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LanguageString = NULL;
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LangCodes = NULL;
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//
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// Collect the languages from what our current Language support is based on our VFR
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//
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gHii->GetPrimaryLanguages (gHii, gStringPackHandle, &LanguageString);
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LangCodes = AllocatePool (StrLen (LanguageString));
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ASSERT (LangCodes);
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//
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// Convert LanguageString from Unicode to EFI defined ASCII LangCodes
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//
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for (Index = 0; LanguageString[Index] != 0x0000; Index++) {
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LangCodes[Index] = (CHAR8) LanguageString[Index];
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}
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LangCodes[Index] = 0;
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if (LangCodesSettingRequired) {
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Status = gRT->SetVariable (
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L"LangCodes",
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&gEfiGlobalVariableGuid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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AsciiStrLen (LangCodes),
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LangCodes
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);
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}
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//
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// Find current LangCode from Lang NV Variable
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//
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Size = ISO_639_2_ENTRY_SIZE;
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Status = gRT->GetVariable (
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L"Lang",
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&gEfiGlobalVariableGuid,
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NULL,
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&Size,
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&LangCode
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);
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if (!EFI_ERROR (Status)) {
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Status = EFI_NOT_FOUND;
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for (Index = 0; LangCodes[Index] != 0; Index += ISO_639_2_ENTRY_SIZE) {
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if (CompareMem (&LangCodes[Index], LangCode, ISO_639_2_ENTRY_SIZE) == 0) {
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Status = EFI_SUCCESS;
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break;
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}
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}
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}
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//
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// If we cannot get language code from Lang variable,
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// or LangCode cannot be found from language table,
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// set the mDefaultLangCode to Lang variable.
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//
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if (EFI_ERROR (Status)) {
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Status = gRT->SetVariable (
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L"Lang",
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&gEfiGlobalVariableGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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ISO_639_2_ENTRY_SIZE,
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mDefaultLangCode
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);
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}
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if (LangCodes) {
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FreePool (LangCodes);
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}
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if (LanguageString != NULL) {
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FreePool (LanguageString);
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}
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}
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