/**
Start boot maintenance manager
@retval EFI_SUCCESS If BMM is invoked successfully.
@return Other value if BMM return unsuccessfully.
**/
EFI_STATUS
BdsStartBootMaint (
VOID
)
{
EFI_STATUS Status;
LIST_ENTRY BdsBootOptionList;
InitializeListHead (&BdsBootOptionList);
//
// Connect all prior to entering the platform setup menu.
//
if (!gConnectAllHappened) {
BdsLibConnectAllDriversToAllControllers ();
gConnectAllHappened = TRUE;
}
//
// Have chance to enumerate boot device
//
BdsLibEnumerateAllBootOption (&BdsBootOptionList);
//
// Group the legacy boot options for the same device type
//
GroupMultipleLegacyBootOption4SameType ();
//
// Init the BMM
//
Status = InitializeBM ();
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;
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;
}
