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/** @file
Based on files under Nt32Pkg/MiscSubClassPlatformDxe/
Copyright (c) 2021, NUVIA Inc. All rights reserved.<BR>
Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015, Hisilicon Limited. All rights reserved.<BR>
Copyright (c) 2015, Linaro Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#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"
/**
Get next language from language code list (with separator ';').
@param LangCode Input: point to first language in the list. On
Output: 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;
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;
}
/**
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) record.
@param RecordData Pointer to SMBIOS table with default values.
@param Smbios SMBIOS protocol.
@retval EFI_SUCCESS The SMBIOS table was successfully added.
@retval EFI_INVALID_PARAMETER Invalid parameter was found.
@retval EFI_OUT_OF_RESOURCES Failed to allocate required memory.
**/
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",
__FUNCTION__, __LINE__, Status));
}
FreePool (SmbiosRecord);
return Status;
}
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