diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscNumberOfInstallableLanguagesFunction.c')
| -rw-r--r-- | Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscNumberOfInstallableLanguagesFunction.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscNumberOfInstallableLanguagesFunction.c b/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscNumberOfInstallableLanguagesFunction.c new file mode 100644 index 0000000000..7cf3453a62 --- /dev/null +++ b/Vlv2TbltDevicePkg/SmBiosMiscDxe/MiscNumberOfInstallableLanguagesFunction.c @@ -0,0 +1,254 @@ +/*++
+
+Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that accompanies this distribution.
+ The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+
+
+Module Name:
+
+ MiscNumberOfInstallableLanguagesFunction.c
+
+Abstract:
+
+ This driver parses the mSmbiosMiscDataTable structure and reports
+ any generated data.
+
+--*/
+
+
+#include "CommonHeader.h"
+
+#include "MiscSubclassDriver.h"
+
+/**
+ Check whether the language is supported for given HII handle
+
+ @param HiiHandle The HII package list handle.
+ @param Offset The offest of current lanague in the supported languages.
+ @param CurrentLang The language code.
+
+ @retval TRUE Supported.
+ @retval FALSE Not Supported.
+
+**/
+VOID
+EFIAPI
+CurrentLanguageMatch (
+ IN EFI_HII_HANDLE HiiHandle,
+ OUT UINT16 *Offset,
+ OUT CHAR8 *CurrentLang
+ )
+{
+ CHAR8 *DefaultLang;
+ CHAR8 *BestLanguage;
+ CHAR8 *Languages;
+ CHAR8 *MatchLang;
+ CHAR8 *EndMatchLang;
+ UINTN CompareLength;
+
+ Languages = HiiGetSupportedLanguages (HiiHandle);
+ if (Languages == NULL) {
+ return;
+ }
+
+ CurrentLang = GetEfiGlobalVariable (L"PlatformLang");
+ DefaultLang = (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang);
+ BestLanguage = GetBestLanguage (
+ Languages,
+ FALSE,
+ (CurrentLang != NULL) ? CurrentLang : "",
+ DefaultLang,
+ NULL
+ );
+ if (BestLanguage != NULL) {
+ //
+ // Find the best matching RFC 4646 language, compute the offset.
+ //
+ CompareLength = AsciiStrLen (BestLanguage);
+ for (MatchLang = Languages, (*Offset) = 0; MatchLang != '\0'; (*Offset)++) {
+ //
+ // Seek to the end of current match language.
+ //
+ for (EndMatchLang = MatchLang; *EndMatchLang != '\0' && *EndMatchLang != ';'; EndMatchLang++);
+
+ if ((EndMatchLang == MatchLang + CompareLength) && AsciiStrnCmp(MatchLang, BestLanguage, CompareLength) == 0) {
+ //
+ // Find the current best Language in the supported languages
+ //
+ break;
+ }
+ //
+ // best language match be in the supported language.
+ //
+ ASSERT (*EndMatchLang == ';');
+ MatchLang = EndMatchLang + 1;
+ }
+ FreePool (BestLanguage);
+ }
+
+ FreePool (Languages);
+ if (CurrentLang != NULL) {
+ FreePool (CurrentLang);
+ }
+ return ;
+}
+
+
+/**
+ Get next language from language code list (with separator ';').
+
+ @param LangCode Input: point to first language in the list. On
+ Otput: point to next language in the list, or
+ NULL if no more language in the list.
+ @param Lang The first language in the list.
+
+**/
+VOID
+EFIAPI
+GetNextLanguage (
+ IN OUT CHAR8 **LangCode,
+ OUT CHAR8 *Lang
+ )
+{
+ UINTN Index;
+ CHAR8 *StringPtr;
+
+ ASSERT (LangCode != NULL);
+ ASSERT (*LangCode != NULL);
+ ASSERT (Lang != NULL);
+
+ Index = 0;
+ StringPtr = *LangCode;
+ while (StringPtr[Index] != 0 && StringPtr[Index] != ';') {
+ Index++;
+ }
+
+ CopyMem (Lang, StringPtr, Index);
+ Lang[Index] = 0;
+
+ if (StringPtr[Index] == ';') {
+ Index++;
+ }
+ *LangCode = StringPtr + Index;
+}
+
+/**
+ This function returns the number of supported languages on HiiHandle.
+
+ @param HiiHandle The HII package list handle.
+
+ @retval The number of supported languages.
+
+**/
+UINT16
+EFIAPI
+GetSupportedLanguageNumber (
+ IN EFI_HII_HANDLE HiiHandle
+ )
+{
+ CHAR8 *Lang;
+ CHAR8 *Languages;
+ CHAR8 *LanguageString;
+ UINT16 LangNumber;
+
+ Languages = HiiGetSupportedLanguages (HiiHandle);
+ if (Languages == NULL) {
+ return 0;
+ }
+
+ LangNumber = 0;
+ Lang = AllocatePool (AsciiStrSize (Languages));
+ if (Lang != NULL) {
+ LanguageString = Languages;
+ while (*LanguageString != 0) {
+ GetNextLanguage (&LanguageString, Lang);
+ LangNumber++;
+ }
+ FreePool (Lang);
+ }
+ FreePool (Languages);
+ return LangNumber;
+}
+
+
+/**
+ This function makes boot time changes to the contents of the
+ MiscNumberOfInstallableLanguages (Type 13).
+
+ @param RecordData Pointer to copy of RecordData from the Data Table.
+
+ @retval EFI_SUCCESS All parameters were valid.
+ @retval EFI_UNSUPPORTED Unexpected RecordType value.
+ @retval EFI_INVALID_PARAMETER Invalid parameter was found.
+
+**/
+MISC_SMBIOS_TABLE_FUNCTION(NumberOfInstallableLanguages)
+{
+ UINTN LangStrLen;
+ CHAR8 CurrentLang[SMBIOS_STRING_MAX_LENGTH + 1];
+ CHAR8 *OptionalStrStart;
+ UINT16 Offset;
+ EFI_STATUS Status;
+ EFI_SMBIOS_HANDLE SmbiosHandle;
+ SMBIOS_TABLE_TYPE13 *SmbiosRecord;
+ EFI_MISC_NUMBER_OF_INSTALLABLE_LANGUAGES *ForType13InputData;
+
+ ForType13InputData = (EFI_MISC_NUMBER_OF_INSTALLABLE_LANGUAGES *)RecordData;
+
+ //
+ // First check for invalid parameters.
+ //
+ if (RecordData == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ForType13InputData->NumberOfInstallableLanguages = GetSupportedLanguageNumber (mHiiHandle);
+
+ //
+ // Try to check if current langcode matches with the langcodes in installed languages
+ //
+ ZeroMem(CurrentLang, SMBIOS_STRING_MAX_LENGTH + 1);
+ CurrentLanguageMatch (mHiiHandle, &Offset, CurrentLang);
+ LangStrLen = AsciiStrLen(CurrentLang);
+
+ //
+ // Two zeros following the last string.
+ //
+ SmbiosRecord = AllocatePool(sizeof (SMBIOS_TABLE_TYPE13) + LangStrLen + 1 + 1);
+ ZeroMem(SmbiosRecord, sizeof (SMBIOS_TABLE_TYPE13) + LangStrLen + 1 + 1);
+
+ SmbiosRecord->Hdr.Type = EFI_SMBIOS_TYPE_BIOS_LANGUAGE_INFORMATION;
+ SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE13);
+
+ //
+ // Make handle chosen by smbios protocol.add automatically.
+ //
+ SmbiosRecord->Hdr.Handle = 0;
+
+ SmbiosRecord->InstallableLanguages = (UINT8)ForType13InputData->NumberOfInstallableLanguages;
+ SmbiosRecord->Flags = (UINT8)ForType13InputData->LanguageFlags.AbbreviatedLanguageFormat;
+ SmbiosRecord->CurrentLanguages = 1;
+ OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
+ AsciiStrCpy(OptionalStrStart, CurrentLang);
+
+ //
+ // Now we have got the full smbios record, call smbios protocol to add this record.
+ //
+ SmbiosHandle = SMBIOS_HANDLE_PI_RESERVED;
+ Status = Smbios-> Add(
+ Smbios,
+ NULL,
+ &SmbiosHandle,
+ (EFI_SMBIOS_TABLE_HEADER *) SmbiosRecord
+ );
+ FreePool(SmbiosRecord);
+ return Status;
+}
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