/**
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 processes the language changes in configuration.
@param Value A pointer to the data being sent to the original exporting driver.
@retval TRUE The callback successfully handled the action.
@retval FALSE The callback not supported in this handler.
**/
EFI_STATUS
LanguageChangeHandler (
IN EFI_IFR_TYPE_VALUE *Value
)
{
CHAR8 *LangCode;
CHAR8 *Lang;
UINTN Index;
EFI_STATUS Status;
//
// Allocate working buffer for RFC 4646 language in supported LanguageString.
//
Lang = AllocatePool (AsciiStrSize (gLanguageString));
ASSERT (Lang != NULL);
Index = 0;
LangCode = gLanguageString;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
if (Index == Value->u8) {
gCurrentLanguageIndex = Value->u8;
break;
}
Index++;
}
if (Index == Value->u8) {
Status = gRT->SetVariable (
L"PlatformLang",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
AsciiStrSize (Lang),
Lang
);
if (EFI_ERROR (Status)) {
FreePool (Lang);
return EFI_DEVICE_ERROR;
}
} else {
ASSERT (FALSE);
}
FreePool (Lang);
return EFI_SUCCESS;
}
/**
Initialize HII information for the FrontPage
@param InitializeHiiData TRUE if HII elements need to be initialized.
@retval EFI_SUCCESS The operation is successful.
@retval EFI_DEVICE_ERROR If the dynamic opcode creation failed.
**/
EFI_STATUS
InitializeFrontPage (
IN BOOLEAN InitializeHiiData
)
{
EFI_STATUS Status;
CHAR8 *LangCode;
CHAR8 *Lang;
CHAR8 *CurrentLang;
UINTN OptionCount;
CHAR16 *StringBuffer;
EFI_HII_HANDLE HiiHandle;
VOID *OptionsOpCodeHandle;
VOID *StartOpCodeHandle;
VOID *EndOpCodeHandle;
EFI_IFR_GUID_LABEL *StartLabel;
EFI_IFR_GUID_LABEL *EndLabel;
EFI_HII_STRING_PROTOCOL *HiiString;
UINTN StringSize;
Lang = NULL;
StringBuffer = NULL;
if (InitializeHiiData) {
//
// Initialize the Device Manager
//
InitializeDeviceManager ();
//
// Initialize the Device Manager
//
InitializeBootManager ();
gCallbackKey = 0;
//
// Locate Hii relative protocols
//
Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &gFormBrowser2);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Install Device Path Protocol and Config Access protocol to driver handle
//
Status = gBS->InstallMultipleProtocolInterfaces (
&gFrontPagePrivate.DriverHandle,
&gEfiDevicePathProtocolGuid,
&mFrontPageHiiVendorDevicePath,
&gEfiHiiConfigAccessProtocolGuid,
&gFrontPagePrivate.ConfigAccess,
NULL
);
ASSERT_EFI_ERROR (Status);
//
// Publish our HII data
//
gFrontPagePrivate.HiiHandle = HiiAddPackages (
&gFrontPageFormSetGuid,
gFrontPagePrivate.DriverHandle,
FrontPageVfrBin,
BdsDxeStrings,
NULL
);
if (gFrontPagePrivate.HiiHandle == NULL) {
return EFI_OUT_OF_RESOURCES;
}
}
//
// Init OpCode Handle and Allocate space for creation of UpdateData Buffer
//
StartOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (StartOpCodeHandle != NULL);
EndOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (EndOpCodeHandle != NULL);
OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (OptionsOpCodeHandle != NULL);
//
// Create Hii Extend Label OpCode as the start opcode
//
StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
StartLabel->Number = LABEL_SELECT_LANGUAGE;
//
// Create Hii Extend Label OpCode as the end opcode
//
EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
EndLabel->Number = LABEL_END;
//
// Collect the languages from what our current Language support is based on our VFR
//
HiiHandle = gFrontPagePrivate.HiiHandle;
GetEfiGlobalVariable2 (L"PlatformLang", (VOID**)&CurrentLang, NULL);
//
// Get Support language list from variable.
//
if (mLanguageString == NULL){
GetEfiGlobalVariable2 (L"PlatformLangCodes", (VOID**)&mLanguageString, NULL);
if (mLanguageString == NULL) {
mLanguageString = AllocateCopyPool (
AsciiStrSize ((CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)),
(CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)
);
ASSERT (mLanguageString != NULL);
}
}
if (gFrontPagePrivate.LanguageToken == NULL) {
//
// Count the language list number.
//
LangCode = mLanguageString;
Lang = AllocatePool (AsciiStrSize (mLanguageString));
ASSERT (Lang != NULL);
OptionCount = 0;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
OptionCount ++;
}
//
// Allocate extra 1 as the end tag.
//
gFrontPagePrivate.LanguageToken = AllocateZeroPool ((OptionCount + 1) * sizeof (EFI_STRING_ID));
ASSERT (gFrontPagePrivate.LanguageToken != NULL);
Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &HiiString);
ASSERT_EFI_ERROR (Status);
LangCode = mLanguageString;
OptionCount = 0;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
StringSize = 0;
Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
if (Status == EFI_BUFFER_TOO_SMALL) {
StringBuffer = AllocateZeroPool (StringSize);
ASSERT (StringBuffer != NULL);
Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
ASSERT_EFI_ERROR (Status);
}
if (EFI_ERROR (Status)) {
StringBuffer = AllocatePool (AsciiStrSize (Lang) * sizeof (CHAR16));
ASSERT (StringBuffer != NULL);
AsciiStrToUnicodeStr (Lang, StringBuffer);
}
ASSERT (StringBuffer != NULL);
gFrontPagePrivate.LanguageToken[OptionCount] = HiiSetString (HiiHandle, 0, StringBuffer, NULL);
FreePool (StringBuffer);
OptionCount++;
}
}
ASSERT (gFrontPagePrivate.LanguageToken != NULL);
LangCode = mLanguageString;
OptionCount = 0;
if (Lang == NULL) {
Lang = AllocatePool (AsciiStrSize (mLanguageString));
ASSERT (Lang != NULL);
}
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
if (CurrentLang != NULL && AsciiStrCmp (Lang, CurrentLang) == 0) {
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
gFrontPagePrivate.LanguageToken[OptionCount],
EFI_IFR_OPTION_DEFAULT,
EFI_IFR_NUMERIC_SIZE_1,
(UINT8) OptionCount
);
} else {
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
gFrontPagePrivate.LanguageToken[OptionCount],
0,
EFI_IFR_NUMERIC_SIZE_1,
(UINT8) OptionCount
);
}
OptionCount++;
}
if (CurrentLang != NULL) {
FreePool (CurrentLang);
}
FreePool (Lang);
HiiCreateOneOfOpCode (
StartOpCodeHandle,
FRONT_PAGE_KEY_LANGUAGE,
0,
0,
STRING_TOKEN (STR_LANGUAGE_SELECT),
STRING_TOKEN (STR_LANGUAGE_SELECT_HELP),
EFI_IFR_FLAG_CALLBACK,
EFI_IFR_NUMERIC_SIZE_1,
OptionsOpCodeHandle,
NULL
);
Status = HiiUpdateForm (
HiiHandle,
&gFrontPageFormSetGuid,
FRONT_PAGE_FORM_ID,
StartOpCodeHandle, // LABEL_SELECT_LANGUAGE
EndOpCodeHandle // LABEL_END
);
HiiFreeOpCodeHandle (StartOpCodeHandle);
HiiFreeOpCodeHandle (EndOpCodeHandle);
HiiFreeOpCodeHandle (OptionsOpCodeHandle);
return Status;
}
/**
This function processes the results of changes in configuration.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param Action Specifies the type of action taken by the browser.
@param QuestionId A unique value which is sent to the original exporting driver
so that it can identify the type of data to expect.
@param Type The type of value for the question.
@param Value A pointer to the data being sent to the original exporting driver.
@param ActionRequest On return, points to the action requested by the callback function.
@retval EFI_SUCCESS The callback successfully handled the action.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved.
@retval EFI_UNSUPPORTED The specified Action is not supported by the callback.
**/
EFI_STATUS
EFIAPI
FrontPageCallback (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN EFI_BROWSER_ACTION Action,
IN EFI_QUESTION_ID QuestionId,
IN UINT8 Type,
IN EFI_IFR_TYPE_VALUE *Value,
OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest
)
{
CHAR8 *LangCode;
CHAR8 *Lang;
UINTN Index;
if (Action != EFI_BROWSER_ACTION_CHANGING && Action != EFI_BROWSER_ACTION_CHANGED) {
//
// All other action return unsupported.
//
return EFI_UNSUPPORTED;
}
gCallbackKey = QuestionId;
if (Action == EFI_BROWSER_ACTION_CHANGED) {
if ((Value == NULL) || (ActionRequest == NULL)) {
return EFI_INVALID_PARAMETER;
}
switch (QuestionId) {
case FRONT_PAGE_KEY_CONTINUE:
//
// This is the continue - clear the screen and return an error to get out of FrontPage loop
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
break;
case FRONT_PAGE_KEY_LANGUAGE:
//
// Allocate working buffer for RFC 4646 language in supported LanguageString.
//
Lang = AllocatePool (AsciiStrSize (mLanguageString));
ASSERT (Lang != NULL);
Index = 0;
LangCode = mLanguageString;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
if (Index == Value->u8) {
break;
}
Index++;
}
if (Index == Value->u8) {
BdsDxeSetVariableAndReportStatusCodeOnError (
L"PlatformLang",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
AsciiStrSize (Lang),
Lang
);
} else {
ASSERT (FALSE);
}
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
FreePool (Lang);
break;
default:
break;
}
} else if (Action == EFI_BROWSER_ACTION_CHANGING) {
if (Value == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// The first 4 entries in the Front Page are to be GUARANTEED to remain constant so IHV's can
// describe to their customers in documentation how to find their setup information (namely
// under the device manager and specific buckets)
//
switch (QuestionId) {
case FRONT_PAGE_KEY_BOOT_MANAGER:
//
// Boot Manager
//
break;
case FRONT_PAGE_KEY_DEVICE_MANAGER:
//
// Device Manager
//
break;
case FRONT_PAGE_KEY_BOOT_MAINTAIN:
//
// Boot Maintenance Manager
//
break;
default:
gCallbackKey = 0;
break;
}
}
return EFI_SUCCESS;
}
VOID
InitializeLanguage (
BOOLEAN LangCodesSettingRequired
)
/*++
Routine Description:
Determine the current language that will be used
based on language related EFI Variables
Arguments:
LangCodesSettingRequired - If required to set LangCode variable
Returns:
--*/
{
EFI_STATUS Status;
UINTN Size;
CHAR8 Lang[RFC_3066_ENTRY_SIZE];
CHAR8 CurrentLang[RFC_3066_ENTRY_SIZE];
CHAR8 *LangCodes;
CHAR8 *LangStrings;
#ifdef LANG_SUPPORT
CHAR8 *OldLangCodes;
CHAR8 OldLang[ISO_639_2_ENTRY_SIZE];
#endif
ExportFonts ();
//
// Collect the languages from what our current Language support is based on our VFR
//
LangCodes = GetSupportedLanguages (gStringPackHandle);
ASSERT (LangCodes != NULL);
if (LangCodesSettingRequired) {
Status = gRT->SetVariable (
L"PlatformLangCodes",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
EfiAsciiStrSize (LangCodes),
LangCodes
);
#ifdef LANG_SUPPORT
//
// Set UEFI deprecated variable "LangCodes" for backwards compatibility
//
OldLangCodes = Rfc3066ToIso639 (LangCodes);
Status = gRT->SetVariable (
L"LangCodes",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
EfiAsciiStrLen (OldLangCodes),
OldLangCodes
);
gBS->FreePool (OldLangCodes);
#endif
}
//
// Find current LangCode from Lang NV Variable
//
Size = RFC_3066_ENTRY_SIZE;
Status = gRT->GetVariable (
L"PlatformLang",
&gEfiGlobalVariableGuid,
NULL,
&Size,
CurrentLang
);
if (!EFI_ERROR (Status)) {
Status = EFI_NOT_FOUND;
LangStrings = LangCodes;
while (*LangStrings != 0) {
GetNextLanguage (&LangStrings, Lang);
if (EfiAsciiStrCmp (Lang, CurrentLang) == 0) {
Status = EFI_SUCCESS;
break;
}
}
}
//
// If we cannot get language code from variable,
// or LangCode cannot be found from language table,
// set the first language in language table to variable.
//
if (EFI_ERROR (Status)) {
LangStrings = LangCodes;
GetNextLanguage (&LangStrings, Lang);
Status = gRT->SetVariable (
L"PlatformLang",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
EfiAsciiStrSize (mDefaultLangCode),
Lang
);
#ifdef LANG_SUPPORT
//
// Set UEFI deprecated variable "Lang" for backwards compatibility
//
Status = ConvertRfc3066LanguageToIso639Language (mDefaultLangCode, OldLang);
if (!EFI_ERROR (Status)) {
Status = gRT->SetVariable (
L"Lang",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
ISO_639_2_ENTRY_SIZE,
OldLang
);
}
#endif
}
if (LangCodes != NULL) {
gBS->FreePool (LangCodes);
}
}
/**
Create Select language menu in the front page with oneof opcode.
@param[in] HiiHandle The hii handle for the Uiapp driver.
@param[in] StartOpCodeHandle The opcode handle to save the new opcode.
**/
VOID
UiCreateLanguageMenu (
IN EFI_HII_HANDLE HiiHandle,
IN VOID *StartOpCodeHandle
)
{
CHAR8 *LangCode;
CHAR8 *Lang;
UINTN LangSize;
CHAR8 *CurrentLang;
UINTN OptionCount;
CHAR16 *StringBuffer;
VOID *OptionsOpCodeHandle;
UINTN StringSize;
EFI_STATUS Status;
EFI_HII_STRING_PROTOCOL *HiiString;
Lang = NULL;
StringBuffer = NULL;
//
// Init OpCode Handle and Allocate space for creation of UpdateData Buffer
//
OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (OptionsOpCodeHandle != NULL);
GetEfiGlobalVariable2 (L"PlatformLang", (VOID**)&CurrentLang, NULL);
//
// Get Support language list from variable.
//
GetEfiGlobalVariable2 (L"PlatformLangCodes", (VOID**)&gLanguageString, NULL);
if (gLanguageString == NULL) {
gLanguageString = AllocateCopyPool (
AsciiStrSize ((CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)),
(CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)
);
ASSERT (gLanguageString != NULL);
}
if (gLanguageToken == NULL) {
//
// Count the language list number.
//
LangCode = gLanguageString;
Lang = AllocatePool (AsciiStrSize (gLanguageString));
ASSERT (Lang != NULL);
OptionCount = 0;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
OptionCount ++;
}
//
// Allocate extra 1 as the end tag.
//
gLanguageToken = AllocateZeroPool ((OptionCount + 1) * sizeof (EFI_STRING_ID));
ASSERT (gLanguageToken != NULL);
Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &HiiString);
ASSERT_EFI_ERROR (Status);
LangCode = gLanguageString;
OptionCount = 0;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
StringSize = 0;
Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
if (Status == EFI_BUFFER_TOO_SMALL) {
StringBuffer = AllocateZeroPool (StringSize);
ASSERT (StringBuffer != NULL);
Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
ASSERT_EFI_ERROR (Status);
}
if (EFI_ERROR (Status)) {
LangSize = AsciiStrSize (Lang);
StringBuffer = AllocatePool (LangSize * sizeof (CHAR16));
ASSERT (StringBuffer != NULL);
AsciiStrToUnicodeStrS (Lang, StringBuffer, LangSize);
}
ASSERT (StringBuffer != NULL);
gLanguageToken[OptionCount] = HiiSetString (HiiHandle, 0, StringBuffer, NULL);
FreePool (StringBuffer);
OptionCount++;
}
}
ASSERT (gLanguageToken != NULL);
LangCode = gLanguageString;
OptionCount = 0;
if (Lang == NULL) {
Lang = AllocatePool (AsciiStrSize (gLanguageString));
ASSERT (Lang != NULL);
}
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
if (CurrentLang != NULL && AsciiStrCmp (Lang, CurrentLang) == 0) {
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
gLanguageToken[OptionCount],
EFI_IFR_OPTION_DEFAULT,
EFI_IFR_NUMERIC_SIZE_1,
(UINT8) OptionCount
);
gCurrentLanguageIndex = (UINT8) OptionCount;
} else {
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
gLanguageToken[OptionCount],
0,
EFI_IFR_NUMERIC_SIZE_1,
(UINT8) OptionCount
);
}
OptionCount++;
}
if (CurrentLang != NULL) {
FreePool (CurrentLang);
}
FreePool (Lang);
HiiCreateOneOfOpCode (
StartOpCodeHandle,
FRONT_PAGE_KEY_LANGUAGE,
0,
0,
STRING_TOKEN (STR_LANGUAGE_SELECT),
STRING_TOKEN (STR_LANGUAGE_SELECT_HELP),
EFI_IFR_FLAG_CALLBACK,
EFI_IFR_NUMERIC_SIZE_1,
OptionsOpCodeHandle,
NULL
);
}
/**
This function processes the results of changes in configuration.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param Action Specifies the type of action taken by the browser.
@param QuestionId A unique value which is sent to the original exporting driver
so that it can identify the type of data to expect.
@param Type The type of value for the question.
@param Value A pointer to the data being sent to the original exporting driver.
@param ActionRequest On return, points to the action requested by the callback function.
@retval EFI_SUCCESS The callback successfully handled the action.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved.
@retval EFI_UNSUPPORTED The specified Action is not supported by the callback.
**/
EFI_STATUS
EFIAPI
FrontPageCallback (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN EFI_BROWSER_ACTION Action,
IN EFI_QUESTION_ID QuestionId,
IN UINT8 Type,
IN EFI_IFR_TYPE_VALUE *Value,
OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest
)
{
CHAR8 *LangCode;
CHAR8 *Lang;
UINTN Index;
EFI_STATUS Status;
//
//Chech whether exit from BMM and reenter frontpage,if yes,reclaim string depositories
//
if (Action == EFI_BROWSER_ACTION_FORM_OPEN){
if (mEnterBmm){
ReclaimStringDepository();
mEnterBmm = FALSE;
}
}
if (Action != EFI_BROWSER_ACTION_CHANGING && Action != EFI_BROWSER_ACTION_CHANGED) {
//
// Do nothing for other UEFI Action. Only do call back when data is changed.
//
return EFI_UNSUPPORTED;
}
if (Action == EFI_BROWSER_ACTION_CHANGED) {
if ((Value == NULL) || (ActionRequest == NULL)) {
return EFI_INVALID_PARAMETER;
}
switch (QuestionId) {
case FRONT_PAGE_KEY_CONTINUE:
//
// This is the continue - clear the screen and return an error to get out of FrontPage loop
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
break;
case FRONT_PAGE_KEY_LANGUAGE:
//
// Allocate working buffer for RFC 4646 language in supported LanguageString.
//
Lang = AllocatePool (AsciiStrSize (mLanguageString));
ASSERT (Lang != NULL);
Index = 0;
LangCode = mLanguageString;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
if (Index == Value->u8) {
break;
}
Index++;
}
if (Index == Value->u8) {
Status = gRT->SetVariable (
L"PlatformLang",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
AsciiStrSize (Lang),
Lang
);
ASSERT_EFI_ERROR(Status);
} else {
ASSERT (FALSE);
}
FreePool (Lang);
//
//Current language of platform is changed,recreate oneof options for language.
//
InitializeLanguage();
break;
default:
break;
}
} else if (Action == EFI_BROWSER_ACTION_CHANGING) {
if (Value == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// The first 4 entries in the Front Page are to be GUARANTEED to remain constant so IHV's can
// describe to their customers in documentation how to find their setup information (namely
// under the device manager and specific buckets)
//
switch (QuestionId) {
case FRONT_PAGE_KEY_BOOT_MANAGER:
//
// Boot Manager
//
EnumerateBootOptions ();
break;
case FRONT_PAGE_KEY_DEVICE_MANAGER:
//
// Device Manager
//
CreateDeviceManagerForm(DEVICE_MANAGER_FORM_ID);
break;
case FRONT_PAGE_KEY_BOOT_MAINTAIN:
//
// Boot Maintenance Manager
//
InitializeBM ();
mEnterBmm = TRUE;
break;
default:
break;
}
}
return EFI_SUCCESS;
}
/**
Create oneof options for language.
**/
VOID
InitializeLanguage (
VOID
)
{
EFI_STATUS Status;
CHAR8 *LangCode;
CHAR8 *Lang;
CHAR8 *CurrentLang;
UINTN OptionCount;
CHAR16 *StringBuffer;
EFI_HII_HANDLE HiiHandle;
VOID *OptionsOpCodeHandle;
VOID *StartOpCodeHandle;
VOID *EndOpCodeHandle;
EFI_IFR_GUID_LABEL *StartLabel;
EFI_IFR_GUID_LABEL *EndLabel;
EFI_HII_STRING_PROTOCOL *HiiString;
UINTN StringSize;
Lang = NULL;
StringBuffer = NULL;
//
// Init OpCode Handle and Allocate space for creation of UpdateData Buffer
//
StartOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (StartOpCodeHandle != NULL);
EndOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (EndOpCodeHandle != NULL);
OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (OptionsOpCodeHandle != NULL);
//
// Create Hii Extend Label OpCode as the start opcode
//
StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
StartLabel->Number = LABEL_SELECT_LANGUAGE;
//
// Create Hii Extend Label OpCode as the end opcode
//
EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
EndLabel->Number = LABEL_END;
//
// Collect the languages from what our current Language support is based on our VFR
//
HiiHandle = gFrontPagePrivate.HiiHandle;
CurrentLang = GetEfiGlobalVariable (L"PlatformLang");
if (mLanguageString == NULL) {
//
// Get Support language list from variable.
//
mLanguageString = GetEfiGlobalVariable (L"PlatformLangCodes");
if (mLanguageString == NULL) {
mLanguageString = AllocateCopyPool (
AsciiStrSize ((CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)),
(CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes)
);
ASSERT (mLanguageString != NULL);
}
}
if (gFrontPagePrivate.LanguageToken == NULL) {
//
// Count the language list number.
//
LangCode = mLanguageString;
Lang = AllocatePool (AsciiStrSize (mLanguageString));
ASSERT (Lang != NULL);
OptionCount = 0;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
OptionCount ++;
}
//
// Allocate extra 1 as the end tag.
//
gFrontPagePrivate.LanguageToken = AllocateZeroPool ((OptionCount + 1) * sizeof (EFI_STRING_ID));
ASSERT (gFrontPagePrivate.LanguageToken != NULL);
Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &HiiString);
ASSERT_EFI_ERROR (Status);
LangCode = mLanguageString;
OptionCount = 0;
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
StringSize = 0;
Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
if (Status == EFI_BUFFER_TOO_SMALL) {
StringBuffer = AllocateZeroPool (StringSize);
ASSERT (StringBuffer != NULL);
Status = HiiString->GetString (HiiString, Lang, HiiHandle, PRINTABLE_LANGUAGE_NAME_STRING_ID, StringBuffer, &StringSize, NULL);
ASSERT_EFI_ERROR (Status);
}
if (EFI_ERROR (Status)) {
StringBuffer = AllocatePool (AsciiStrSize (Lang) * sizeof (CHAR16));
ASSERT (StringBuffer != NULL);
AsciiStrToUnicodeStr (Lang, StringBuffer);
}
ASSERT (StringBuffer != NULL);
gFrontPagePrivate.LanguageToken[OptionCount] = HiiSetString (HiiHandle, 0, StringBuffer, NULL);
FreePool (StringBuffer);
OptionCount++;
}
}
ASSERT (gFrontPagePrivate.LanguageToken != NULL);
LangCode = mLanguageString;
OptionCount = 0;
if (Lang == NULL) {
Lang = AllocatePool (AsciiStrSize (mLanguageString));
ASSERT (Lang != NULL);
}
while (*LangCode != 0) {
GetNextLanguage (&LangCode, Lang);
if (CurrentLang != NULL && AsciiStrCmp (Lang, CurrentLang) == 0) {
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
gFrontPagePrivate.LanguageToken[OptionCount],
EFI_IFR_OPTION_DEFAULT,
EFI_IFR_NUMERIC_SIZE_1,
(UINT8) OptionCount
);
} else {
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
gFrontPagePrivate.LanguageToken[OptionCount],
0,
EFI_IFR_NUMERIC_SIZE_1,
(UINT8) OptionCount
);
}
OptionCount++;
}
if (CurrentLang != NULL) {
FreePool (CurrentLang);
}
FreePool (Lang);
HiiCreateOneOfOpCode (
StartOpCodeHandle,
FRONT_PAGE_KEY_LANGUAGE,
0,
0,
STRING_TOKEN (STR_LANGUAGE_SELECT),
STRING_TOKEN (STR_LANGUAGE_SELECT_HELP),
EFI_IFR_FLAG_CALLBACK,
EFI_IFR_NUMERIC_SIZE_1,
OptionsOpCodeHandle,
NULL
);
Status = HiiUpdateForm (
HiiHandle,
&mFrontPageGuid,
FRONT_PAGE_FORM_ID,
StartOpCodeHandle, // LABEL_SELECT_LANGUAGE
EndOpCodeHandle // LABEL_END
);
HiiFreeOpCodeHandle (StartOpCodeHandle);
HiiFreeOpCodeHandle (EndOpCodeHandle);
HiiFreeOpCodeHandle (OptionsOpCodeHandle);
}
