MiscNumberOfInstallableLanguagesFunction.c

Go to the documentation of this file.

 
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/HiiLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/OemMiscLib.h>
#include <Library/PrintLib.h>
#include <Library/UefiBootServicesTableLib.h>
 
#include "SmbiosMisc.h"
 
VOID
EFIAPI
GetNextLanguage (
  IN OUT CHAR8  **LangCode,
  OUT CHAR8     *Lang
  )
{
  UINTN  Index;
  CHAR8  *StringPtr;
 
  if ((LangCode == NULL) || (*LangCode == NULL) || (Lang == NULL)) {
    return;
  }
 
  Index     = 0;
  StringPtr = *LangCode;
  while (StringPtr[Index] != 0 && StringPtr[Index] != ';') {
    Index++;
  }
 
  (VOID)CopyMem (Lang, StringPtr, Index);
  Lang[Index] = 0;
 
  if (StringPtr[Index] == ';') {
    Index++;
  }
 
  *LangCode = StringPtr + Index;
}
 
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;
}
 
SMBIOS_MISC_TABLE_FUNCTION (MiscNumberOfInstallableLanguages) {
  UINTN                LangStrLen;
  CHAR8                CurrentLang[SMBIOS_STRING_MAX_LENGTH + 1];
  CHAR8                *OptionalStrStart;
  EFI_STATUS           Status;
  SMBIOS_TABLE_TYPE13  *SmbiosRecord;
  SMBIOS_TABLE_TYPE13  *InputData;
 
  InputData = NULL;
 
  //
  // First check for invalid parameters.
  //
  if (RecordData == NULL) {
    return EFI_INVALID_PARAMETER;
  }
 
  InputData = (SMBIOS_TABLE_TYPE13 *)RecordData;
 
  InputData->InstallableLanguages = GetSupportedLanguageNumber (mSmbiosMiscHiiHandle);
 
  //
  // Try to check if current langcode matches with the langcodes in installed languages
  //
  ZeroMem (CurrentLang, SMBIOS_STRING_MAX_LENGTH - 1);
  (VOID)AsciiStrCpyS (CurrentLang, SMBIOS_STRING_MAX_LENGTH - 1, "en|US|iso8859-1");
  LangStrLen = AsciiStrLen (CurrentLang);
 
  //
  // Two zeros following the last string.
  //
  SmbiosRecord = AllocateZeroPool (sizeof (SMBIOS_TABLE_TYPE13) + LangStrLen + 1 + 1);
  if (SmbiosRecord == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }
 
  (VOID)CopyMem (SmbiosRecord, InputData, sizeof (SMBIOS_TABLE_TYPE13));
 
  SmbiosRecord->Hdr.Length = sizeof (SMBIOS_TABLE_TYPE13);
 
  OptionalStrStart = (CHAR8 *)(SmbiosRecord + 1);
  (VOID)AsciiStrCpyS (OptionalStrStart, SMBIOS_STRING_MAX_LENGTH - 1, CurrentLang);
  //
  // Now we have got the full smbios record, call smbios protocol to add this record.
  //
  Status = SmbiosMiscAddRecord ((UINT8 *)SmbiosRecord, NULL);
  if (EFI_ERROR (Status)) {
    DEBUG ((
      DEBUG_ERROR,
      "[%a]:[%dL] Smbios Type13 Table Log Failed! %r \n",
      __func__,
      DEBUG_LINE_NUMBER,
      Status
      ));
  }
 
  FreePool (SmbiosRecord);
  return Status;
}