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audk/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
Dandan Bi b6f07bdd2a MdeModulePkg/SetupBrowser: Send discard info to driver when fail to submit 
When fail to submit data and user discard the change, we should send
the discard info to driver with EFI_BROWSER_ACTION_CHANGED callback.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2016-10-19 11:37:10 +08:00

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/** @file
Entry and initialization module for the browser.
Copyright (c) 2007 - 2016, 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
which 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.
**/
#include "Setup.h"
SETUP_DRIVER_PRIVATE_DATA mPrivateData = {
SETUP_DRIVER_SIGNATURE,
NULL,
{
SendForm,
BrowserCallback
},
{
SetScope,
RegisterHotKey,
RegiserExitHandler,
SaveReminder
},
{
BROWSER_EXTENSION2_VERSION_1_1,
SetScope,
RegisterHotKey,
RegiserExitHandler,
IsBrowserDataModified,
ExecuteAction,
{NULL,NULL},
{NULL,NULL},
IsResetRequired
}
};
EFI_HII_DATABASE_PROTOCOL *mHiiDatabase;
EFI_HII_CONFIG_ROUTING_PROTOCOL *mHiiConfigRouting;
EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL *mPathFromText;
EDKII_FORM_DISPLAY_ENGINE_PROTOCOL *mFormDisplay;
UINTN gBrowserContextCount = 0;
LIST_ENTRY gBrowserContextList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserContextList);
LIST_ENTRY gBrowserFormSetList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserFormSetList);
LIST_ENTRY gBrowserHotKeyList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserHotKeyList);
LIST_ENTRY gBrowserStorageList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserStorageList);
LIST_ENTRY gBrowserSaveFailFormSetList = INITIALIZE_LIST_HEAD_VARIABLE (gBrowserSaveFailFormSetList);
BOOLEAN mSystemSubmit = FALSE;
BOOLEAN gResetRequired;
BOOLEAN gExitRequired;
BOOLEAN gFlagReconnect;
BOOLEAN gCallbackReconnect;
BROWSER_SETTING_SCOPE gBrowserSettingScope = FormSetLevel;
BOOLEAN mBrowserScopeFirstSet = TRUE;
EXIT_HANDLER ExitHandlerFunction = NULL;
FORM_BROWSER_FORMSET *mSystemLevelFormSet;
//
// Browser Global Strings
//
CHAR16 *gEmptyString;
CHAR16 *mUnknownString = L"!";
extern EFI_GUID mCurrentFormSetGuid;
extern EFI_HII_HANDLE mCurrentHiiHandle;
extern UINT16 mCurrentFormId;
extern FORM_DISPLAY_ENGINE_FORM gDisplayFormData;
/**
Create a menu with specified formset GUID and form ID, and add it as a child
of the given parent menu.
@param HiiHandle Hii handle related to this formset.
@param FormSetGuid The Formset Guid of menu to be added.
@param FormId The Form ID of menu to be added.
@param QuestionId The question id of this menu to be added.
@return A pointer to the newly added menu or NULL if memory is insufficient.
**/
FORM_ENTRY_INFO *
UiAddMenuList (
IN EFI_HII_HANDLE HiiHandle,
IN EFI_GUID *FormSetGuid,
IN UINT16 FormId,
IN UINT16 QuestionId
)
{
FORM_ENTRY_INFO *MenuList;
MenuList = AllocateZeroPool (sizeof (FORM_ENTRY_INFO));
if (MenuList == NULL) {
return NULL;
}
MenuList->Signature = FORM_ENTRY_INFO_SIGNATURE;
MenuList->HiiHandle = HiiHandle;
CopyMem (&MenuList->FormSetGuid, FormSetGuid, sizeof (EFI_GUID));
MenuList->FormId = FormId;
MenuList->QuestionId = QuestionId;
//
// If parent is not specified, it is the root Form of a Formset
//
InsertTailList (&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &MenuList->Link);
return MenuList;
}
/**
Return the form id for the input hiihandle and formset.
@param HiiHandle HiiHandle for FormSet.
@param FormSetGuid The Formset GUID of the menu to search.
@return First form's id for this form set.
**/
EFI_FORM_ID
GetFirstFormId (
IN EFI_HII_HANDLE HiiHandle,
IN EFI_GUID *FormSetGuid
)
{
LIST_ENTRY *Link;
FORM_BROWSER_FORM *Form;
Link = GetFirstNode (&gCurrentSelection->FormSet->FormListHead);
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
return Form->FormId;
}
/**
Search Menu with given FormSetGuid and FormId in all cached menu list.
@param HiiHandle HiiHandle for FormSet.
@param FormSetGuid The Formset GUID of the menu to search.
@param FormId The Form ID of menu to search.
@return A pointer to menu found or NULL if not found.
**/
FORM_ENTRY_INFO *
UiFindMenuList (
IN EFI_HII_HANDLE HiiHandle,
IN EFI_GUID *FormSetGuid,
IN UINT16 FormId
)
{
LIST_ENTRY *Link;
FORM_ENTRY_INFO *MenuList;
FORM_ENTRY_INFO *RetMenu;
EFI_FORM_ID FirstFormId;
RetMenu = NULL;
Link = GetFirstNode (&mPrivateData.FormBrowserEx2.FormViewHistoryHead);
while (!IsNull (&mPrivateData.FormBrowserEx2.FormViewHistoryHead, Link)) {
MenuList = FORM_ENTRY_INFO_FROM_LINK (Link);
Link = GetNextNode (&mPrivateData.FormBrowserEx2.FormViewHistoryHead, Link);
//
// If already find the menu, free the menus behind it.
//
if (RetMenu != NULL) {
RemoveEntryList (&MenuList->Link);
FreePool (MenuList);
continue;
}
//
// Find the same FromSet.
//
if (MenuList->HiiHandle == HiiHandle) {
if (IsZeroGuid (&MenuList->FormSetGuid)) {
//
// FormSetGuid is not specified.
//
RetMenu = MenuList;
} else if (CompareGuid (&MenuList->FormSetGuid, FormSetGuid)) {
if (MenuList->FormId == FormId) {
RetMenu = MenuList;
} else if (FormId == 0 || MenuList->FormId == 0 ) {
FirstFormId = GetFirstFormId (HiiHandle, FormSetGuid);
if ((FormId == 0 && FirstFormId == MenuList->FormId) || (MenuList->FormId ==0 && FirstFormId == FormId)) {
RetMenu = MenuList;
}
}
}
}
}
return RetMenu;
}
/**
Find parent menu for current menu.
@param CurrentMenu Current Menu
@param SettingLevel Whether find parent menu in Form Level or Formset level.
In form level, just find the parent menu;
In formset level, find the parent menu which has different
formset guid value.
@retval The parent menu for current menu.
**/
FORM_ENTRY_INFO *
UiFindParentMenu (
IN FORM_ENTRY_INFO *CurrentMenu,
IN BROWSER_SETTING_SCOPE SettingLevel
)
{
FORM_ENTRY_INFO *ParentMenu;
LIST_ENTRY *Link;
ASSERT (SettingLevel == FormLevel || SettingLevel == FormSetLevel);
if (CurrentMenu == NULL) {
return NULL;
}
ParentMenu = NULL;
Link = &CurrentMenu->Link;
while (Link->BackLink != &mPrivateData.FormBrowserEx2.FormViewHistoryHead) {
ParentMenu = FORM_ENTRY_INFO_FROM_LINK (Link->BackLink);
if (SettingLevel == FormLevel) {
//
// For FormLevel, just find the parent menu, return.
//
break;
}
if (!CompareGuid (&CurrentMenu->FormSetGuid, &ParentMenu->FormSetGuid)) {
//
// For SystemLevel, must find the menu which has different formset.
//
break;
}
Link = Link->BackLink;
}
//
// Not find the parent menu, just return NULL.
//
if (Link->BackLink == &mPrivateData.FormBrowserEx2.FormViewHistoryHead) {
return NULL;
}
return ParentMenu;
}
/**
Free Menu list linked list.
@param MenuListHead One Menu list point in the menu list.
**/
VOID
UiFreeMenuList (
LIST_ENTRY *MenuListHead
)
{
FORM_ENTRY_INFO *MenuList;
while (!IsListEmpty (MenuListHead)) {
MenuList = FORM_ENTRY_INFO_FROM_LINK (MenuListHead->ForwardLink);
RemoveEntryList (&MenuList->Link);
FreePool (MenuList);
}
}
/**
Copy current Menu list to the new menu list.
@param NewMenuListHead New create Menu list.
@param CurrentMenuListHead Current Menu list.
**/
VOID
UiCopyMenuList (
OUT LIST_ENTRY *NewMenuListHead,
IN LIST_ENTRY *CurrentMenuListHead
)
{
LIST_ENTRY *Link;
FORM_ENTRY_INFO *MenuList;
FORM_ENTRY_INFO *NewMenuEntry;
//
// If new menu list not empty, free it first.
//
UiFreeMenuList (NewMenuListHead);
Link = GetFirstNode (CurrentMenuListHead);
while (!IsNull (CurrentMenuListHead, Link)) {
MenuList = FORM_ENTRY_INFO_FROM_LINK (Link);
Link = GetNextNode (CurrentMenuListHead, Link);
NewMenuEntry = AllocateZeroPool (sizeof (FORM_ENTRY_INFO));
ASSERT (NewMenuEntry != NULL);
NewMenuEntry->Signature = FORM_ENTRY_INFO_SIGNATURE;
NewMenuEntry->HiiHandle = MenuList->HiiHandle;
CopyMem (&NewMenuEntry->FormSetGuid, &MenuList->FormSetGuid, sizeof (EFI_GUID));
NewMenuEntry->FormId = MenuList->FormId;
NewMenuEntry->QuestionId = MenuList->QuestionId;
InsertTailList (NewMenuListHead, &NewMenuEntry->Link);
}
}
/**
Load all hii formset to the browser.
**/
VOID
LoadAllHiiFormset (
VOID
)
{
FORM_BROWSER_FORMSET *LocalFormSet;
EFI_HII_HANDLE *HiiHandles;
UINTN Index;
EFI_GUID ZeroGuid;
EFI_STATUS Status;
FORM_BROWSER_FORMSET *OldFormset;
OldFormset = mSystemLevelFormSet;
//
// Get all the Hii handles
//
HiiHandles = HiiGetHiiHandles (NULL);
ASSERT (HiiHandles != NULL);
//
// Search for formset of each class type
//
for (Index = 0; HiiHandles[Index] != NULL; Index++) {
//
// Check HiiHandles[Index] does exist in global maintain list.
//
if (GetFormSetFromHiiHandle (HiiHandles[Index]) != NULL) {
continue;
}
//
// Initilize FormSet Setting
//
LocalFormSet = AllocateZeroPool (sizeof (FORM_BROWSER_FORMSET));
ASSERT (LocalFormSet != NULL);
mSystemLevelFormSet = LocalFormSet;
ZeroMem (&ZeroGuid, sizeof (ZeroGuid));
Status = InitializeFormSet (HiiHandles[Index], &ZeroGuid, LocalFormSet);
if (EFI_ERROR (Status) || IsListEmpty (&LocalFormSet->FormListHead)) {
DestroyFormSet (LocalFormSet);
continue;
}
InitializeCurrentSetting (LocalFormSet);
//
// Initilize Questions' Value
//
Status = LoadFormSetConfig (NULL, LocalFormSet);
if (EFI_ERROR (Status)) {
DestroyFormSet (LocalFormSet);
continue;
}
}
//
// Free resources, and restore gOldFormSet and gClassOfVfr
//
FreePool (HiiHandles);
mSystemLevelFormSet = OldFormset;
}
/**
Pop up the error info.
@param BrowserStatus The input browser status.
@param HiiHandle The Hiihandle for this opcode.
@param OpCode The opcode use to get the erro info and timeout value.
@param ErrorString Error string used by BROWSER_NO_SUBMIT_IF.
**/
UINT32
PopupErrorMessage (
IN UINT32 BrowserStatus,
IN EFI_HII_HANDLE HiiHandle,
IN EFI_IFR_OP_HEADER *OpCode, OPTIONAL
IN CHAR16 *ErrorString
)
{
FORM_DISPLAY_ENGINE_STATEMENT *Statement;
USER_INPUT UserInputData;
Statement = NULL;
if (OpCode != NULL) {
Statement = AllocateZeroPool (sizeof(FORM_DISPLAY_ENGINE_STATEMENT));
ASSERT (Statement != NULL);
Statement->OpCode = OpCode;
gDisplayFormData.HighLightedStatement = Statement;
}
//
// Used to compatible with old display engine.
// New display engine not use this field.
//
gDisplayFormData.ErrorString = ErrorString;
gDisplayFormData.BrowserStatus = BrowserStatus;
if (HiiHandle != NULL) {
gDisplayFormData.HiiHandle = HiiHandle;
}
mFormDisplay->FormDisplay (&gDisplayFormData, &UserInputData);
gDisplayFormData.BrowserStatus = BROWSER_SUCCESS;
gDisplayFormData.ErrorString = NULL;
if (OpCode != NULL) {
FreePool (Statement);
}
return UserInputData.Action;
}
/**
This is the routine which an external caller uses to direct the browser
where to obtain it's information.
@param This The Form Browser protocol instanse.
@param Handles A pointer to an array of Handles. If HandleCount > 1 we
display a list of the formsets for the handles specified.
@param HandleCount The number of Handles specified in Handle.
@param FormSetGuid This field points to the EFI_GUID which must match the Guid
field in the EFI_IFR_FORM_SET op-code for the specified
forms-based package. If FormSetGuid is NULL, then this
function will display the first found forms package.
@param FormId This field specifies which EFI_IFR_FORM to render as the first
displayable page. If this field has a value of 0x0000, then
the forms browser will render the specified forms in their encoded order.
@param ScreenDimensions Points to recommended form dimensions, including any non-content area, in
characters.
@param ActionRequest Points to the action recommended by the form.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
@retval EFI_NOT_FOUND No valid forms could be found to display.
**/
EFI_STATUS
EFIAPI
SendForm (
IN CONST EFI_FORM_BROWSER2_PROTOCOL *This,
IN EFI_HII_HANDLE *Handles,
IN UINTN HandleCount,
IN EFI_GUID *FormSetGuid, OPTIONAL
IN UINT16 FormId, OPTIONAL
IN CONST EFI_SCREEN_DESCRIPTOR *ScreenDimensions, OPTIONAL
OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest OPTIONAL
)
{
EFI_STATUS Status;
UI_MENU_SELECTION *Selection;
UINTN Index;
FORM_BROWSER_FORMSET *FormSet;
FORM_ENTRY_INFO *MenuList;
BOOLEAN RetVal;
//
// If EDKII_FORM_DISPLAY_ENGINE_PROTOCOL not found, return EFI_UNSUPPORTED.
//
if (mFormDisplay == NULL) {
DEBUG ((DEBUG_ERROR, "Fatal Error! EDKII_FORM_DISPLAY_ENGINE_PROTOCOL not found!"));
return EFI_UNSUPPORTED;
}
//
// Save globals used by SendForm()
//
SaveBrowserContext ();
gFlagReconnect = FALSE;
gResetRequired = FALSE;
gExitRequired = FALSE;
gCallbackReconnect = FALSE;
Status = EFI_SUCCESS;
gEmptyString = L"";
gDisplayFormData.ScreenDimensions = (EFI_SCREEN_DESCRIPTOR *) ScreenDimensions;
for (Index = 0; Index < HandleCount; Index++) {
Selection = AllocateZeroPool (sizeof (UI_MENU_SELECTION));
ASSERT (Selection != NULL);
Selection->Handle = Handles[Index];
if (FormSetGuid != NULL) {
CopyMem (&Selection->FormSetGuid, FormSetGuid, sizeof (EFI_GUID));
Selection->FormId = FormId;
} else {
CopyMem (&Selection->FormSetGuid, &gEfiHiiPlatformSetupFormsetGuid, sizeof (EFI_GUID));
}
do {
FormSet = AllocateZeroPool (sizeof (FORM_BROWSER_FORMSET));
ASSERT (FormSet != NULL);
//
// Validate the HiiHandle
// if validate failed, find the first validate parent HiiHandle.
//
if (!ValidateHiiHandle(Selection->Handle)) {
FindNextMenu (Selection, FormSetLevel);
}
//
// Initialize internal data structures of FormSet
//
Status = InitializeFormSet (Selection->Handle, &Selection->FormSetGuid, FormSet);
if (EFI_ERROR (Status) || IsListEmpty (&FormSet->FormListHead)) {
DestroyFormSet (FormSet);
break;
}
Selection->FormSet = FormSet;
mSystemLevelFormSet = FormSet;
//
// Display this formset
//
gCurrentSelection = Selection;
Status = SetupBrowser (Selection);
gCurrentSelection = NULL;
mSystemLevelFormSet = NULL;
if (gFlagReconnect || gCallbackReconnect) {
RetVal = ReconnectController (FormSet->DriverHandle);
if (!RetVal) {
PopupErrorMessage(BROWSER_RECONNECT_FAIL, NULL, NULL, NULL);
}
gFlagReconnect = FALSE;
gCallbackReconnect = FALSE;
}
//
// If no data is changed, don't need to save current FormSet into the maintain list.
//
if (!IsNvUpdateRequiredForFormSet (FormSet)) {
CleanBrowserStorage(FormSet);
RemoveEntryList (&FormSet->Link);
DestroyFormSet (FormSet);
}
if (EFI_ERROR (Status)) {
break;
}
} while (Selection->Action == UI_ACTION_REFRESH_FORMSET);
FreePool (Selection);
}
if (ActionRequest != NULL) {
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
if (gResetRequired) {
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_RESET;
}
}
mFormDisplay->ExitDisplay();
//
// Clear the menu history data.
//
while (!IsListEmpty (&mPrivateData.FormBrowserEx2.FormViewHistoryHead)) {
MenuList = FORM_ENTRY_INFO_FROM_LINK (mPrivateData.FormBrowserEx2.FormViewHistoryHead.ForwardLink);
RemoveEntryList (&MenuList->Link);
FreePool (MenuList);
}
//
// Restore globals used by SendForm()
//
RestoreBrowserContext ();
return Status;
}
/**
Get or set data to the storage.
@param ResultsDataSize The size of the buffer associatedwith ResultsData.
@param ResultsData A string returned from an IFR browser or
equivalent. The results string will have no
routing information in them.
@param RetrieveData A BOOLEAN field which allows an agent to retrieve
(if RetrieveData = TRUE) data from the uncommitted
browser state information or set (if RetrieveData
= FALSE) data in the uncommitted browser state
information.
@param Storage The pointer to the storage.
@retval EFI_SUCCESS The results have been distributed or are awaiting
distribution.
**/
EFI_STATUS
ProcessStorage (
IN OUT UINTN *ResultsDataSize,
IN OUT EFI_STRING *ResultsData,
IN BOOLEAN RetrieveData,
IN BROWSER_STORAGE *Storage
)
{
CHAR16 *ConfigResp;
EFI_STATUS Status;
CHAR16 *StrPtr;
UINTN BufferSize;
UINTN TmpSize;
UINTN MaxLen;
FORMSET_STORAGE *BrowserStorage;
if (RetrieveData) {
//
// Generate <ConfigResp>
//
Status = StorageToConfigResp (Storage, &ConfigResp, Storage->ConfigRequest, TRUE);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Skip <ConfigHdr> and '&' to point to <ConfigBody> when first copy the configbody.
// Also need to consider add "\0" at first time.
//
StrPtr = StrStr (ConfigResp, L"PATH");
ASSERT (StrPtr != NULL);
StrPtr = StrStr (StrPtr, L"&");
StrPtr += 1;
BufferSize = StrSize (StrPtr);
//
// Copy the data if the input buffer is bigger enough.
//
if (*ResultsDataSize >= BufferSize) {
StrCpyS (*ResultsData, *ResultsDataSize / sizeof (CHAR16), StrPtr);
}
*ResultsDataSize = BufferSize;
FreePool (ConfigResp);
} else {
//
// Prepare <ConfigResp>
//
BrowserStorage = GetFstStgFromBrsStg (Storage);
ASSERT (BrowserStorage != NULL);
TmpSize = StrLen (*ResultsData);
BufferSize = (TmpSize + StrLen (BrowserStorage->ConfigHdr) + 2) * sizeof (CHAR16);
MaxLen = BufferSize / sizeof (CHAR16);
ConfigResp = AllocateZeroPool (BufferSize);
ASSERT (ConfigResp != NULL);
StrCpyS (ConfigResp, MaxLen, BrowserStorage->ConfigHdr);
StrCatS (ConfigResp, MaxLen, L"&");
StrCatS (ConfigResp, MaxLen, *ResultsData);
//
// Update Browser uncommited data
//
Status = ConfigRespToStorage (Storage, ConfigResp);
FreePool (ConfigResp);
if (EFI_ERROR (Status)) {
return Status;
}
}
return EFI_SUCCESS;
}
/**
This routine called this service in the browser to retrieve or set certain uncommitted
state information that resides in the open formsets.
@param This A pointer to the EFI_FORM_BROWSER2_PROTOCOL
instance.
@param ResultsDataSize A pointer to the size of the buffer associated
with ResultsData.
@param ResultsData A string returned from an IFR browser or
equivalent. The results string will have no
routing information in them.
@param RetrieveData A BOOLEAN field which allows an agent to retrieve
(if RetrieveData = TRUE) data from the uncommitted
browser state information or set (if RetrieveData
= FALSE) data in the uncommitted browser state
information.
@param VariableGuid An optional field to indicate the target variable
GUID name to use.
@param VariableName An optional field to indicate the target
human-readable variable name.
@retval EFI_SUCCESS The results have been distributed or are awaiting
distribution.
@retval EFI_BUFFER_TOO_SMALL The ResultsDataSize specified was too small to
contain the results data.
**/
EFI_STATUS
EFIAPI
BrowserCallback (
IN CONST EFI_FORM_BROWSER2_PROTOCOL *This,
IN OUT UINTN *ResultsDataSize,
IN OUT EFI_STRING ResultsData,
IN BOOLEAN RetrieveData,
IN CONST EFI_GUID *VariableGuid, OPTIONAL
IN CONST CHAR16 *VariableName OPTIONAL
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
BROWSER_STORAGE *Storage;
FORMSET_STORAGE *FormsetStorage;
UINTN TotalSize;
BOOLEAN Found;
if (ResultsDataSize == NULL || ResultsData == NULL) {
return EFI_INVALID_PARAMETER;
}
TotalSize = *ResultsDataSize;
Storage = NULL;
Found = FALSE;
Status = EFI_SUCCESS;
if (VariableGuid != NULL) {
//
// Try to find target storage in the current formset.
//
Link = GetFirstNode (&gBrowserStorageList);
while (!IsNull (&gBrowserStorageList, Link)) {
Storage = BROWSER_STORAGE_FROM_LINK (Link);
Link = GetNextNode (&gBrowserStorageList, Link);
//
// Check the current storage.
//
if (!CompareGuid (&Storage->Guid, (EFI_GUID *) VariableGuid)) {
continue;
}
if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
//
// Buffer storage require both GUID and Name
//
if (VariableName == NULL) {
return EFI_NOT_FOUND;
}
if (StrCmp (Storage->Name, (CHAR16 *) VariableName) != 0) {
continue;
}
}
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE ||
Storage->Type == EFI_HII_VARSTORE_BUFFER) {
if (mSystemLevelFormSet == NULL || mSystemLevelFormSet->HiiHandle == NULL) {
return EFI_NOT_FOUND;
}
if (Storage->HiiHandle != mSystemLevelFormSet->HiiHandle) {
continue;
}
}
Status = ProcessStorage (&TotalSize, &ResultsData, RetrieveData, Storage);
if (EFI_ERROR (Status)) {
return Status;
}
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
ConfigRequestAdjust (Storage, ResultsData, TRUE);
}
//
// Different formsets may have same varstore, so here just set the flag
// not exit the circle.
//
Found = TRUE;
break;
}
if (!Found) {
return EFI_NOT_FOUND;
}
} else {
//
// GUID/Name is not specified, take the first storage in FormSet
//
if (mSystemLevelFormSet == NULL) {
return EFI_NOT_READY;
}
//
// Generate <ConfigResp>
//
Link = GetFirstNode (&mSystemLevelFormSet->StorageListHead);
if (IsNull (&mSystemLevelFormSet->StorageListHead, Link)) {
return EFI_UNSUPPORTED;
}
FormsetStorage = FORMSET_STORAGE_FROM_LINK (Link);
Status = ProcessStorage (&TotalSize, &ResultsData, RetrieveData, FormsetStorage->BrowserStorage);
if (EFI_ERROR (Status)) {
return Status;
}
}
if (RetrieveData) {
Status = TotalSize <= *ResultsDataSize ? EFI_SUCCESS : EFI_BUFFER_TOO_SMALL;
*ResultsDataSize = TotalSize;
}
return Status;
}
/**
Callback function for SimpleTextInEx protocol install events
@param Event the event that is signaled.
@param Context not used here.
**/
VOID
EFIAPI
FormDisplayCallback (
IN EFI_EVENT Event,
IN VOID *Context
)
{
if (mFormDisplay != NULL) {
return;
}
gBS->LocateProtocol (
&gEdkiiFormDisplayEngineProtocolGuid,
NULL,
(VOID **) &mFormDisplay
);
}
/**
Initialize Setup Browser driver.
@param ImageHandle The image handle.
@param SystemTable The system table.
@retval EFI_SUCCESS The Setup Browser module is initialized correctly..
@return Other value if failed to initialize the Setup Browser module.
**/
EFI_STATUS
EFIAPI
InitializeSetup (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
VOID *Registration;
//
// Locate required Hii relative protocols
//
Status = gBS->LocateProtocol (
&gEfiHiiDatabaseProtocolGuid,
NULL,
(VOID **) &mHiiDatabase
);
ASSERT_EFI_ERROR (Status);
Status = gBS->LocateProtocol (
&gEfiHiiConfigRoutingProtocolGuid,
NULL,
(VOID **) &mHiiConfigRouting
);
ASSERT_EFI_ERROR (Status);
Status = gBS->LocateProtocol (
&gEfiDevicePathFromTextProtocolGuid,
NULL,
(VOID **) &mPathFromText
);
//
// Install FormBrowser2 protocol
//
mPrivateData.Handle = NULL;
Status = gBS->InstallProtocolInterface (
&mPrivateData.Handle,
&gEfiFormBrowser2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&mPrivateData.FormBrowser2
);
ASSERT_EFI_ERROR (Status);
//
// Install FormBrowserEx2 protocol
//
InitializeListHead (&mPrivateData.FormBrowserEx2.FormViewHistoryHead);
InitializeListHead (&mPrivateData.FormBrowserEx2.OverrideQestListHead);
mPrivateData.Handle = NULL;
Status = gBS->InstallProtocolInterface (
&mPrivateData.Handle,
&gEdkiiFormBrowserEx2ProtocolGuid,
EFI_NATIVE_INTERFACE,
&mPrivateData.FormBrowserEx2
);
ASSERT_EFI_ERROR (Status);
Status = gBS->InstallProtocolInterface (
&mPrivateData.Handle,
&gEdkiiFormBrowserExProtocolGuid,
EFI_NATIVE_INTERFACE,
&mPrivateData.FormBrowserEx
);
ASSERT_EFI_ERROR (Status);
InitializeDisplayFormData ();
Status = gBS->LocateProtocol (
&gEdkiiFormDisplayEngineProtocolGuid,
NULL,
(VOID **) &mFormDisplay
);
if (EFI_ERROR (Status)) {
EfiCreateProtocolNotifyEvent (
&gEdkiiFormDisplayEngineProtocolGuid,
TPL_CALLBACK,
FormDisplayCallback,
NULL,
&Registration
);
}
return EFI_SUCCESS;
}
/**
Create a new string in HII Package List.
@param String The String to be added
@param HiiHandle The package list in the HII database to insert the
specified string.
@return The output string.
**/
EFI_STRING_ID
NewString (
IN CHAR16 *String,
IN EFI_HII_HANDLE HiiHandle
)
{
EFI_STRING_ID StringId;
StringId = HiiSetString (HiiHandle, 0, String, NULL);
ASSERT (StringId != 0);
return StringId;
}
/**
Delete a string from HII Package List.
@param StringId Id of the string in HII database.
@param HiiHandle The HII package list handle.
@retval EFI_SUCCESS The string was deleted successfully.
**/
EFI_STATUS
DeleteString (
IN EFI_STRING_ID StringId,
IN EFI_HII_HANDLE HiiHandle
)
{
CHAR16 NullChar;
NullChar = CHAR_NULL;
HiiSetString (HiiHandle, StringId, &NullChar, NULL);
return EFI_SUCCESS;
}
/**
Get the string based on the StringId and HII Package List Handle.
@param Token The String's ID.
@param HiiHandle The package list in the HII database to search for
the specified string.
@return The output string.
**/
CHAR16 *
GetToken (
IN EFI_STRING_ID Token,
IN EFI_HII_HANDLE HiiHandle
)
{
EFI_STRING String;
if (HiiHandle == NULL) {
return NULL;
}
String = HiiGetString (HiiHandle, Token, NULL);
if (String == NULL) {
String = AllocateCopyPool (StrSize (mUnknownString), mUnknownString);
ASSERT (String != NULL);
}
return (CHAR16 *) String;
}
/**
Allocate new memory and then copy the Unicode string Source to Destination.
@param Dest Location to copy string
@param Src String to copy
**/
VOID
NewStringCpy (
IN OUT CHAR16 **Dest,
IN CHAR16 *Src
)
{
if (*Dest != NULL) {
FreePool (*Dest);
}
*Dest = AllocateCopyPool (StrSize (Src), Src);
ASSERT (*Dest != NULL);
}
/**
Allocate new memory and concatinate Source on the end of Destination.
@param Dest String to added to the end of.
@param Src String to concatinate.
**/
VOID
NewStringCat (
IN OUT CHAR16 **Dest,
IN CHAR16 *Src
)
{
CHAR16 *NewString;
UINTN MaxLen;
if (*Dest == NULL) {
NewStringCpy (Dest, Src);
return;
}
MaxLen = ( StrSize (*Dest) + StrSize (Src) - 1) / sizeof (CHAR16);
NewString = AllocateZeroPool (MaxLen * sizeof (CHAR16));
ASSERT (NewString != NULL);
StrCpyS (NewString, MaxLen, *Dest);
StrCatS (NewString, MaxLen, Src);
FreePool (*Dest);
*Dest = NewString;
}
/**
Get Value for given Name from a NameValue Storage.
@param Storage The NameValue Storage.
@param Name The Name.
@param Value The retured Value.
@param GetValueFrom Where to get source value, from EditValue or Value.
@retval EFI_SUCCESS Value found for given Name.
@retval EFI_NOT_FOUND No such Name found in NameValue storage.
**/
EFI_STATUS
GetValueByName (
IN BROWSER_STORAGE *Storage,
IN CHAR16 *Name,
IN OUT CHAR16 **Value,
IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
)
{
LIST_ENTRY *Link;
NAME_VALUE_NODE *Node;
if (GetValueFrom != GetSetValueWithEditBuffer && GetValueFrom != GetSetValueWithBuffer) {
return EFI_INVALID_PARAMETER;
}
*Value = NULL;
Link = GetFirstNode (&Storage->NameValueListHead);
while (!IsNull (&Storage->NameValueListHead, Link)) {
Node = NAME_VALUE_NODE_FROM_LINK (Link);
if (StrCmp (Name, Node->Name) == 0) {
if (GetValueFrom == GetSetValueWithEditBuffer) {
NewStringCpy (Value, Node->EditValue);
} else {
NewStringCpy (Value, Node->Value);
}
return EFI_SUCCESS;
}
Link = GetNextNode (&Storage->NameValueListHead, Link);
}
return EFI_NOT_FOUND;
}
/**
Set Value of given Name in a NameValue Storage.
@param Storage The NameValue Storage.
@param Name The Name.
@param Value The Value to set.
@param SetValueTo Whether update editValue or Value.
@param ReturnNode The node use the input name.
@retval EFI_SUCCESS Value found for given Name.
@retval EFI_NOT_FOUND No such Name found in NameValue storage.
**/
EFI_STATUS
SetValueByName (
IN BROWSER_STORAGE *Storage,
IN CHAR16 *Name,
IN CHAR16 *Value,
IN GET_SET_QUESTION_VALUE_WITH SetValueTo,
OUT NAME_VALUE_NODE **ReturnNode
)
{
LIST_ENTRY *Link;
NAME_VALUE_NODE *Node;
CHAR16 *Buffer;
if (SetValueTo != GetSetValueWithEditBuffer && SetValueTo != GetSetValueWithBuffer) {
return EFI_INVALID_PARAMETER;
}
Link = GetFirstNode (&Storage->NameValueListHead);
while (!IsNull (&Storage->NameValueListHead, Link)) {
Node = NAME_VALUE_NODE_FROM_LINK (Link);
if (StrCmp (Name, Node->Name) == 0) {
if (SetValueTo == GetSetValueWithEditBuffer) {
Buffer = Node->EditValue;
} else {
Buffer = Node->Value;
}
if (Buffer != NULL) {
FreePool (Buffer);
}
Buffer = AllocateCopyPool (StrSize (Value), Value);
ASSERT (Buffer != NULL);
if (SetValueTo == GetSetValueWithEditBuffer) {
Node->EditValue = Buffer;
} else {
Node->Value = Buffer;
}
if (ReturnNode != NULL) {
*ReturnNode = Node;
}
return EFI_SUCCESS;
}
Link = GetNextNode (&Storage->NameValueListHead, Link);
}
return EFI_NOT_FOUND;
}
/**
Convert setting of Buffer Storage or NameValue Storage to <ConfigResp>.
@param Storage The Storage to be conveted.
@param ConfigResp The returned <ConfigResp>.
@param ConfigRequest The ConfigRequest string.
@param GetEditBuf Get the data from editbuffer or buffer.
@retval EFI_SUCCESS Convert success.
@retval EFI_INVALID_PARAMETER Incorrect storage type.
**/
EFI_STATUS
StorageToConfigResp (
IN BROWSER_STORAGE *Storage,
IN CHAR16 **ConfigResp,
IN CHAR16 *ConfigRequest,
IN BOOLEAN GetEditBuf
)
{
EFI_STATUS Status;
EFI_STRING Progress;
LIST_ENTRY *Link;
NAME_VALUE_NODE *Node;
UINT8 *SourceBuf;
FORMSET_STORAGE *FormsetStorage;
Status = EFI_SUCCESS;
switch (Storage->Type) {
case EFI_HII_VARSTORE_BUFFER:
case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
SourceBuf = GetEditBuf ? Storage->EditBuffer : Storage->Buffer;
Status = mHiiConfigRouting->BlockToConfig (
mHiiConfigRouting,
ConfigRequest,
SourceBuf,
Storage->Size,
ConfigResp,
&Progress
);
break;
case EFI_HII_VARSTORE_NAME_VALUE:
*ConfigResp = NULL;
FormsetStorage = GetFstStgFromBrsStg(Storage);
ASSERT (FormsetStorage != NULL);
NewStringCat (ConfigResp, FormsetStorage->ConfigHdr);
Link = GetFirstNode (&Storage->NameValueListHead);
while (!IsNull (&Storage->NameValueListHead, Link)) {
Node = NAME_VALUE_NODE_FROM_LINK (Link);
if (StrStr (ConfigRequest, Node->Name) != NULL) {
NewStringCat (ConfigResp, L"&");
NewStringCat (ConfigResp, Node->Name);
NewStringCat (ConfigResp, L"=");
if (GetEditBuf) {
NewStringCat (ConfigResp, Node->EditValue);
} else {
NewStringCat (ConfigResp, Node->Value);
}
}
Link = GetNextNode (&Storage->NameValueListHead, Link);
}
break;
case EFI_HII_VARSTORE_EFI_VARIABLE:
default:
Status = EFI_INVALID_PARAMETER;
break;
}
return Status;
}
/**
Convert <ConfigResp> to settings in Buffer Storage or NameValue Storage.
@param Storage The Storage to receive the settings.
@param ConfigResp The <ConfigResp> to be converted.
@retval EFI_SUCCESS Convert success.
@retval EFI_INVALID_PARAMETER Incorrect storage type.
**/
EFI_STATUS
ConfigRespToStorage (
IN BROWSER_STORAGE *Storage,
IN CHAR16 *ConfigResp
)
{
EFI_STATUS Status;
EFI_STRING Progress;
UINTN BufferSize;
CHAR16 *StrPtr;
CHAR16 *Name;
CHAR16 *Value;
Status = EFI_SUCCESS;
switch (Storage->Type) {
case EFI_HII_VARSTORE_BUFFER:
case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
BufferSize = Storage->Size;
Status = mHiiConfigRouting->ConfigToBlock (
mHiiConfigRouting,
ConfigResp,
Storage->EditBuffer,
&BufferSize,
&Progress
);
break;
case EFI_HII_VARSTORE_NAME_VALUE:
StrPtr = StrStr (ConfigResp, L"PATH");
if (StrPtr == NULL) {
break;
}
StrPtr = StrStr (ConfigResp, L"&");
while (StrPtr != NULL) {
//
// Skip '&'
//
StrPtr = StrPtr + 1;
Name = StrPtr;
StrPtr = StrStr (StrPtr, L"=");
if (StrPtr == NULL) {
break;
}
*StrPtr = 0;
//
// Skip '='
//
StrPtr = StrPtr + 1;
Value = StrPtr;
StrPtr = StrStr (StrPtr, L"&");
if (StrPtr != NULL) {
*StrPtr = 0;
}
SetValueByName (Storage, Name, Value, GetSetValueWithEditBuffer, NULL);
}
break;
case EFI_HII_VARSTORE_EFI_VARIABLE:
default:
Status = EFI_INVALID_PARAMETER;
break;
}
return Status;
}
/**
Convert the buffer value to HiiValue.
@param Question The question.
@param Value Unicode buffer save the question value.
@retval Status whether convert the value success.
**/
EFI_STATUS
BufferToValue (
IN OUT FORM_BROWSER_STATEMENT *Question,
IN CHAR16 *Value
)
{
CHAR16 *StringPtr;
BOOLEAN IsBufferStorage;
CHAR16 *DstBuf;
CHAR16 TempChar;
UINTN LengthStr;
UINT8 *Dst;
CHAR16 TemStr[5];
UINTN Index;
UINT8 DigitUint8;
BOOLEAN IsString;
UINTN Length;
EFI_STATUS Status;
IsString = (BOOLEAN) ((Question->HiiValue.Type == EFI_IFR_TYPE_STRING) ? TRUE : FALSE);
if (Question->Storage->Type == EFI_HII_VARSTORE_BUFFER ||
Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
IsBufferStorage = TRUE;
} else {
IsBufferStorage = FALSE;
}
//
// Question Value is provided by Buffer Storage or NameValue Storage
//
if (Question->BufferValue != NULL) {
//
// This Question is password or orderedlist
//
Dst = Question->BufferValue;
} else {
//
// Other type of Questions
//
Dst = (UINT8 *) &Question->HiiValue.Value;
}
//
// Temp cut at the end of this section, end with '\0' or '&'.
//
StringPtr = Value;
while (*StringPtr != L'\0' && *StringPtr != L'&') {
StringPtr++;
}
TempChar = *StringPtr;
*StringPtr = L'\0';
LengthStr = StrLen (Value);
//
// Value points to a Unicode hexadecimal string, we need to convert the string to the value with CHAR16/UINT8...type.
// When generating the Value string, we follow this rule: 1 byte -> 2 Unicode characters (for string: 2 byte(CHAR16) ->4 Unicode characters).
// So the maximum value string length of a question is : Question->StorageWidth * 2.
// If the value string length > Question->StorageWidth * 2, only set the string length as Question->StorageWidth * 2, then convert.
//
if (LengthStr > (UINTN) Question->StorageWidth * 2) {
Length = (UINTN) Question->StorageWidth * 2;
} else {
Length = LengthStr;
}
Status = EFI_SUCCESS;
if (!IsBufferStorage && IsString) {
//
// Convert Config String to Unicode String, e.g "0041004200430044" => "ABCD"
// Add string tail char L'\0' into Length
//
DstBuf = (CHAR16 *) Dst;
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0; Index < Length; Index += 4) {
StrnCpyS (TemStr, sizeof (TemStr) / sizeof (CHAR16), Value + Index, 4);
DstBuf[Index/4] = (CHAR16) StrHexToUint64 (TemStr);
}
//
// Add tailing L'\0' character
//
DstBuf[Index/4] = L'\0';
} else {
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0; Index < Length; Index ++) {
TemStr[0] = Value[LengthStr - Index - 1];
DigitUint8 = (UINT8) StrHexToUint64 (TemStr);
if ((Index & 1) == 0) {
Dst [Index/2] = DigitUint8;
} else {
Dst [Index/2] = (UINT8) ((DigitUint8 << 4) + Dst [Index/2]);
}
}
}
*StringPtr = TempChar;
return Status;
}
/**
Get Question's current Value.
@param FormSet FormSet data structure.
@param Form Form data structure.
@param Question Question to be initialized.
@param GetValueFrom Where to get value, may from editbuffer, buffer or hii driver.
@retval EFI_SUCCESS The function completed successfully.
**/
EFI_STATUS
GetQuestionValue (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN OUT FORM_BROWSER_STATEMENT *Question,
IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
)
{
EFI_STATUS Status;
BOOLEAN Enabled;
BOOLEAN Pending;
UINT8 *Dst;
UINTN StorageWidth;
EFI_TIME EfiTime;
BROWSER_STORAGE *Storage;
FORMSET_STORAGE *FormsetStorage;
EFI_IFR_TYPE_VALUE *QuestionValue;
CHAR16 *ConfigRequest;
CHAR16 *Progress;
CHAR16 *Result;
CHAR16 *Value;
UINTN Length;
BOOLEAN IsBufferStorage;
UINTN MaxLen;
Status = EFI_SUCCESS;
Value = NULL;
Result = NULL;
if (GetValueFrom >= GetSetValueWithMax) {
return EFI_INVALID_PARAMETER;
}
//
// Question value is provided by an Expression, evaluate it
//
if (Question->ValueExpression != NULL) {
Status = EvaluateExpression (FormSet, Form, Question->ValueExpression);
if (!EFI_ERROR (Status)) {
if (Question->ValueExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
ASSERT (Question->HiiValue.Type == EFI_IFR_TYPE_BUFFER && Question->HiiValue.Buffer != NULL);
if (Question->StorageWidth > Question->ValueExpression->Result.BufferLen) {
CopyMem (Question->HiiValue.Buffer, Question->ValueExpression->Result.Buffer, Question->ValueExpression->Result.BufferLen);
Question->HiiValue.BufferLen = Question->ValueExpression->Result.BufferLen;
} else {
CopyMem (Question->HiiValue.Buffer, Question->ValueExpression->Result.Buffer, Question->StorageWidth);
Question->HiiValue.BufferLen = Question->StorageWidth;
}
FreePool (Question->ValueExpression->Result.Buffer);
}
Question->HiiValue.Type = Question->ValueExpression->Result.Type;
CopyMem (&Question->HiiValue.Value, &Question->ValueExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
}
return Status;
}
//
// Get question value by read expression.
//
if (Question->ReadExpression != NULL && Form->FormType == STANDARD_MAP_FORM_TYPE) {
Status = EvaluateExpression (FormSet, Form, Question->ReadExpression);
if (!EFI_ERROR (Status) &&
((Question->ReadExpression->Result.Type < EFI_IFR_TYPE_OTHER) || (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER))) {
//
// Only update question value to the valid result.
//
if (Question->ReadExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
ASSERT (Question->HiiValue.Type == EFI_IFR_TYPE_BUFFER && Question->HiiValue.Buffer != NULL);
if (Question->StorageWidth > Question->ReadExpression->Result.BufferLen) {
CopyMem (Question->HiiValue.Buffer, Question->ReadExpression->Result.Buffer, Question->ReadExpression->Result.BufferLen);
Question->HiiValue.BufferLen = Question->ReadExpression->Result.BufferLen;
} else {
CopyMem (Question->HiiValue.Buffer, Question->ReadExpression->Result.Buffer, Question->StorageWidth);
Question->HiiValue.BufferLen = Question->StorageWidth;
}
FreePool (Question->ReadExpression->Result.Buffer);
}
Question->HiiValue.Type = Question->ReadExpression->Result.Type;
CopyMem (&Question->HiiValue.Value, &Question->ReadExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
return EFI_SUCCESS;
}
}
//
// Question value is provided by RTC
//
Storage = Question->Storage;
QuestionValue = &Question->HiiValue.Value;
if (Storage == NULL) {
//
// It's a Question without storage, or RTC date/time
//
if (Question->Operand == EFI_IFR_DATE_OP || Question->Operand == EFI_IFR_TIME_OP) {
//
// Date and time define the same Flags bit
//
switch (Question->Flags & EFI_QF_DATE_STORAGE) {
case QF_DATE_STORAGE_TIME:
Status = gRT->GetTime (&EfiTime, NULL);
break;
case QF_DATE_STORAGE_WAKEUP:
Status = gRT->GetWakeupTime (&Enabled, &Pending, &EfiTime);
break;
case QF_DATE_STORAGE_NORMAL:
default:
//
// For date/time without storage
//
return EFI_SUCCESS;
}
if (EFI_ERROR (Status)) {
if (Question->Operand == EFI_IFR_DATE_OP){
QuestionValue->date.Year = 0xff;
QuestionValue->date.Month = 0xff;
QuestionValue->date.Day = 0xff;
} else {
QuestionValue->time.Hour = 0xff;
QuestionValue->time.Minute = 0xff;
QuestionValue->time.Second = 0xff;
}
return EFI_SUCCESS;
}
if (Question->Operand == EFI_IFR_DATE_OP) {
QuestionValue->date.Year = EfiTime.Year;
QuestionValue->date.Month = EfiTime.Month;
QuestionValue->date.Day = EfiTime.Day;
} else {
QuestionValue->time.Hour = EfiTime.Hour;
QuestionValue->time.Minute = EfiTime.Minute;
QuestionValue->time.Second = EfiTime.Second;
}
}
return EFI_SUCCESS;
}
//
// Question value is provided by EFI variable
//
StorageWidth = Question->StorageWidth;
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
if (Question->BufferValue != NULL) {
Dst = Question->BufferValue;
} else {
Dst = (UINT8 *) QuestionValue;
}
Status = gRT->GetVariable (
Question->VariableName,
&Storage->Guid,
NULL,
&StorageWidth,
Dst
);
//
// Always return success, even this EFI variable doesn't exist
//
return EFI_SUCCESS;
}
//
// Question Value is provided by Buffer Storage or NameValue Storage
//
if (Question->BufferValue != NULL) {
//
// This Question is password or orderedlist
//
Dst = Question->BufferValue;
} else {
//
// Other type of Questions
//
Dst = (UINT8 *) &Question->HiiValue.Value;
}
if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
IsBufferStorage = TRUE;
} else {
IsBufferStorage = FALSE;
}
if (GetValueFrom == GetSetValueWithEditBuffer || GetValueFrom == GetSetValueWithBuffer ) {
if (IsBufferStorage) {
if (GetValueFrom == GetSetValueWithEditBuffer) {
//
// Copy from storage Edit buffer
//
CopyMem (Dst, Storage->EditBuffer + Question->VarStoreInfo.VarOffset, StorageWidth);
} else {
//
// Copy from storage Edit buffer
//
CopyMem (Dst, Storage->Buffer + Question->VarStoreInfo.VarOffset, StorageWidth);
}
} else {
Value = NULL;
Status = GetValueByName (Storage, Question->VariableName, &Value, GetValueFrom);
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT (Value != NULL);
Status = BufferToValue (Question, Value);
FreePool (Value);
}
} else {
FormsetStorage = GetFstStgFromVarId(FormSet, Question->VarStoreId);
ASSERT (FormsetStorage != NULL);
//
// <ConfigRequest> ::= <ConfigHdr> + <BlockName> ||
// <ConfigHdr> + "&" + <VariableName>
//
if (IsBufferStorage) {
Length = StrLen (FormsetStorage->ConfigHdr);
Length += StrLen (Question->BlockName);
} else {
Length = StrLen (FormsetStorage->ConfigHdr);
Length += StrLen (Question->VariableName) + 1;
}
// Allocate buffer include '\0'
MaxLen = Length + 1;
ConfigRequest = AllocateZeroPool (MaxLen * sizeof (CHAR16));
ASSERT (ConfigRequest != NULL);
StrCpyS (ConfigRequest, MaxLen, FormsetStorage->ConfigHdr);
if (IsBufferStorage) {
StrCatS (ConfigRequest, MaxLen, Question->BlockName);
} else {
StrCatS (ConfigRequest, MaxLen, L"&");
StrCatS (ConfigRequest, MaxLen, Question->VariableName);
}
//
// Request current settings from Configuration Driver
//
Status = mHiiConfigRouting->ExtractConfig (
mHiiConfigRouting,
ConfigRequest,
&Progress,
&Result
);
FreePool (ConfigRequest);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Skip <ConfigRequest>
//
if (IsBufferStorage) {
Value = StrStr (Result, L"&VALUE");
if (Value == NULL) {
FreePool (Result);
return EFI_NOT_FOUND;
}
//
// Skip "&VALUE"
//
Value = Value + 6;
} else {
Value = Result + Length;
}
if (*Value != '=') {
FreePool (Result);
return EFI_NOT_FOUND;
}
//
// Skip '=', point to value
//
Value = Value + 1;
Status = BufferToValue (Question, Value);
if (EFI_ERROR (Status)) {
FreePool (Result);
return Status;
}
//
// Synchronize Edit Buffer
//
if (IsBufferStorage) {
CopyMem (Storage->EditBuffer + Question->VarStoreInfo.VarOffset, Dst, StorageWidth);
} else {
SetValueByName (Storage, Question->VariableName, Value, GetSetValueWithEditBuffer, NULL);
}
if (Result != NULL) {
FreePool (Result);
}
}
return Status;
}
/**
Save Question Value to edit copy(cached) or Storage(uncached).
@param FormSet FormSet data structure.
@param Form Form data structure.
@param Question Pointer to the Question.
@param SetValueTo Update the question value to editbuffer , buffer or hii driver.
@retval EFI_SUCCESS The function completed successfully.
**/
EFI_STATUS
SetQuestionValue (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN OUT FORM_BROWSER_STATEMENT *Question,
IN GET_SET_QUESTION_VALUE_WITH SetValueTo
)
{
EFI_STATUS Status;
BOOLEAN Enabled;
BOOLEAN Pending;
UINT8 *Src;
EFI_TIME EfiTime;
UINTN BufferLen;
UINTN StorageWidth;
BROWSER_STORAGE *Storage;
FORMSET_STORAGE *FormsetStorage;
EFI_IFR_TYPE_VALUE *QuestionValue;
CHAR16 *ConfigResp;
CHAR16 *Progress;
CHAR16 *Value;
UINTN Length;
BOOLEAN IsBufferStorage;
BOOLEAN IsString;
UINT8 *TemBuffer;
CHAR16 *TemName;
CHAR16 *TemString;
UINTN Index;
NAME_VALUE_NODE *Node;
UINTN MaxLen;
Status = EFI_SUCCESS;
Node = NULL;
if (SetValueTo >= GetSetValueWithMax) {
return EFI_INVALID_PARAMETER;
}
//
// If Question value is provided by an Expression, then it is read only
//
if (Question->ValueExpression != NULL) {
return Status;
}
//
// Before set question value, evaluate its write expression.
//
if (Question->WriteExpression != NULL && Form->FormType == STANDARD_MAP_FORM_TYPE) {
Status = EvaluateExpression (FormSet, Form, Question->WriteExpression);
if (EFI_ERROR (Status)) {
return Status;
}
}
//
// Question value is provided by RTC
//
Storage = Question->Storage;
QuestionValue = &Question->HiiValue.Value;
if (Storage == NULL) {
//
// It's a Question without storage, or RTC date/time
//
if (Question->Operand == EFI_IFR_DATE_OP || Question->Operand == EFI_IFR_TIME_OP) {
//
// Date and time define the same Flags bit
//
switch (Question->Flags & EFI_QF_DATE_STORAGE) {
case QF_DATE_STORAGE_TIME:
Status = gRT->GetTime (&EfiTime, NULL);
break;
case QF_DATE_STORAGE_WAKEUP:
Status = gRT->GetWakeupTime (&Enabled, &Pending, &EfiTime);
break;
case QF_DATE_STORAGE_NORMAL:
default:
//
// For date/time without storage
//
return EFI_SUCCESS;
}
if (EFI_ERROR (Status)) {
return Status;
}
if (Question->Operand == EFI_IFR_DATE_OP) {
EfiTime.Year = QuestionValue->date.Year;
EfiTime.Month = QuestionValue->date.Month;
EfiTime.Day = QuestionValue->date.Day;
} else {
EfiTime.Hour = QuestionValue->time.Hour;
EfiTime.Minute = QuestionValue->time.Minute;
EfiTime.Second = QuestionValue->time.Second;
}
if ((Question->Flags & EFI_QF_DATE_STORAGE) == QF_DATE_STORAGE_TIME) {
Status = gRT->SetTime (&EfiTime);
} else {
Status = gRT->SetWakeupTime (TRUE, &EfiTime);
}
}
return Status;
}
//
// Question value is provided by EFI variable
//
StorageWidth = Question->StorageWidth;
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
if (Question->BufferValue != NULL) {
Src = Question->BufferValue;
} else {
Src = (UINT8 *) QuestionValue;
}
Status = gRT->SetVariable (
Question->VariableName,
&Storage->Guid,
Storage->Attributes,
StorageWidth,
Src
);
return Status;
}
//
// Question Value is provided by Buffer Storage or NameValue Storage
//
if (Question->BufferValue != NULL) {
Src = Question->BufferValue;
} else {
Src = (UINT8 *) &Question->HiiValue.Value;
}
if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
IsBufferStorage = TRUE;
} else {
IsBufferStorage = FALSE;
}
IsString = (BOOLEAN) ((Question->HiiValue.Type == EFI_IFR_TYPE_STRING) ? TRUE : FALSE);
if (SetValueTo == GetSetValueWithEditBuffer || SetValueTo == GetSetValueWithBuffer) {
if (IsBufferStorage) {
if (SetValueTo == GetSetValueWithEditBuffer) {
//
// Copy to storage edit buffer
//
CopyMem (Storage->EditBuffer + Question->VarStoreInfo.VarOffset, Src, StorageWidth);
} else if (SetValueTo == GetSetValueWithBuffer) {
//
// Copy to storage edit buffer
//
CopyMem (Storage->Buffer + Question->VarStoreInfo.VarOffset, Src, StorageWidth);
}
} else {
if (IsString) {
//
// Allocate enough string buffer.
//
Value = NULL;
BufferLen = ((StrLen ((CHAR16 *) Src) * 4) + 1) * sizeof (CHAR16);
Value = AllocateZeroPool (BufferLen);
ASSERT (Value != NULL);
//
// Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"
//
TemName = (CHAR16 *) Src;
TemString = Value;
for (; *TemName != L'\0'; TemName++) {
TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemName, 4);
}
} else {
BufferLen = StorageWidth * 2 + 1;
Value = AllocateZeroPool (BufferLen * sizeof (CHAR16));
ASSERT (Value != NULL);
//
// Convert Buffer to Hex String
//
TemBuffer = Src + StorageWidth - 1;
TemString = Value;
for (Index = 0; Index < StorageWidth; Index ++, TemBuffer --) {
TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemBuffer, 2);
}
}
Status = SetValueByName (Storage, Question->VariableName, Value, SetValueTo, &Node);
FreePool (Value);
if (EFI_ERROR (Status)) {
return Status;
}
}
} else if (SetValueTo == GetSetValueWithHiiDriver) {
//
// <ConfigResp> ::= <ConfigHdr> + <BlockName> + "&VALUE=" + "<HexCh>StorageWidth * 2" ||
// <ConfigHdr> + "&" + <VariableName> + "=" + "<string>"
//
if (IsBufferStorage) {
Length = StrLen (Question->BlockName) + 7;
} else {
Length = StrLen (Question->VariableName) + 2;
}
if (!IsBufferStorage && IsString) {
Length += (StrLen ((CHAR16 *) Src) * 4);
} else {
Length += (StorageWidth * 2);
}
FormsetStorage = GetFstStgFromVarId(FormSet, Question->VarStoreId);
ASSERT (FormsetStorage != NULL);
MaxLen = StrLen (FormsetStorage->ConfigHdr) + Length + 1;
ConfigResp = AllocateZeroPool (MaxLen * sizeof (CHAR16));
ASSERT (ConfigResp != NULL);
StrCpyS (ConfigResp, MaxLen, FormsetStorage->ConfigHdr);
if (IsBufferStorage) {
StrCatS (ConfigResp, MaxLen, Question->BlockName);
StrCatS (ConfigResp, MaxLen, L"&VALUE=");
} else {
StrCatS (ConfigResp, MaxLen, L"&");
StrCatS (ConfigResp, MaxLen, Question->VariableName);
StrCatS (ConfigResp, MaxLen, L"=");
}
Value = ConfigResp + StrLen (ConfigResp);
if (!IsBufferStorage && IsString) {
//
// Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"
//
TemName = (CHAR16 *) Src;
TemString = Value;
for (; *TemName != L'\0'; TemName++) {
TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemName, 4);
}
} else {
//
// Convert Buffer to Hex String
//
TemBuffer = Src + StorageWidth - 1;
TemString = Value;
for (Index = 0; Index < StorageWidth; Index ++, TemBuffer --) {
TemString += UnicodeValueToString (TemString, PREFIX_ZERO | RADIX_HEX, *TemBuffer, 2);
}
}
//
// Convert to lower char.
//
for (TemString = Value; *Value != L'\0'; Value++) {
if (*Value >= L'A' && *Value <= L'Z') {
*Value = (CHAR16) (*Value - L'A' + L'a');
}
}
//
// Submit Question Value to Configuration Driver
//
Status = mHiiConfigRouting->RouteConfig (
mHiiConfigRouting,
ConfigResp,
&Progress
);
if (EFI_ERROR (Status)) {
FreePool (ConfigResp);
return Status;
}
FreePool (ConfigResp);
//
// Sync storage, from editbuffer to buffer.
//
CopyMem (Storage->Buffer + Question->VarStoreInfo.VarOffset, Src, StorageWidth);
}
return Status;
}
/**
Perform nosubmitif check for a Form.
@param FormSet FormSet data structure.
@param Form Form data structure.
@param Question The Question to be validated.
@param Type Validation type: NoSubmit
@retval EFI_SUCCESS Form validation pass.
@retval other Form validation failed.
**/
EFI_STATUS
ValidateQuestion (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN FORM_BROWSER_STATEMENT *Question,
IN UINTN Type
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
LIST_ENTRY *ListHead;
FORM_EXPRESSION *Expression;
UINT32 BrowserStatus;
CHAR16 *ErrorStr;
BrowserStatus = BROWSER_SUCCESS;
ErrorStr = NULL;
switch (Type) {
case EFI_HII_EXPRESSION_INCONSISTENT_IF:
ListHead = &Question->InconsistentListHead;
break;
case EFI_HII_EXPRESSION_WARNING_IF:
ListHead = &Question->WarningListHead;
break;
case EFI_HII_EXPRESSION_NO_SUBMIT_IF:
ListHead = &Question->NoSubmitListHead;
break;
default:
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
Link = GetFirstNode (ListHead);
while (!IsNull (ListHead, Link)) {
Expression = FORM_EXPRESSION_FROM_LINK (Link);
//
// Evaluate the expression
//
Status = EvaluateExpression (FormSet, Form, Expression);
if (EFI_ERROR (Status)) {
return Status;
}
if (IsTrue (&Expression->Result)) {
switch (Type) {
case EFI_HII_EXPRESSION_INCONSISTENT_IF:
BrowserStatus = BROWSER_INCONSISTENT_IF;
break;
case EFI_HII_EXPRESSION_WARNING_IF:
BrowserStatus = BROWSER_WARNING_IF;
break;
case EFI_HII_EXPRESSION_NO_SUBMIT_IF:
BrowserStatus = BROWSER_NO_SUBMIT_IF;
//
// This code only used to compatible with old display engine,
// New display engine will not use this field.
//
if (Expression->Error != 0) {
ErrorStr = GetToken (Expression->Error, FormSet->HiiHandle);
}
break;
default:
ASSERT (FALSE);
break;
}
if (!((Type == EFI_HII_EXPRESSION_NO_SUBMIT_IF) && mSystemSubmit)) {
//
// If in system submit process and for no_submit_if check, not popup this error message.
// Will process this fail again later in not system submit process.
//
PopupErrorMessage(BrowserStatus, FormSet->HiiHandle, Expression->OpCode, ErrorStr);
}
if (ErrorStr != NULL) {
FreePool (ErrorStr);
}
if (Type == EFI_HII_EXPRESSION_WARNING_IF) {
return EFI_SUCCESS;
} else {
return EFI_NOT_READY;
}
}
Link = GetNextNode (ListHead, Link);
}
return EFI_SUCCESS;
}
/**
Perform question check.
If one question has more than one check, process form high priority to low.
Only one error info will be popup.
@param FormSet FormSet data structure.
@param Form Form data structure.
@param Question The Question to be validated.
@retval EFI_SUCCESS Form validation pass.
@retval other Form validation failed.
**/
EFI_STATUS
ValueChangedValidation (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN FORM_BROWSER_STATEMENT *Question
)
{
EFI_STATUS Status;
Status = EFI_SUCCESS;
//
// Do the inconsistentif check.
//
if (!IsListEmpty (&Question->InconsistentListHead)) {
Status = ValidateQuestion (FormSet, Form, Question, EFI_HII_EXPRESSION_INCONSISTENT_IF);
if (EFI_ERROR (Status)) {
return Status;
}
}
//
// Do the warningif check.
//
if (!IsListEmpty (&Question->WarningListHead)) {
Status = ValidateQuestion (FormSet, Form, Question, EFI_HII_EXPRESSION_WARNING_IF);
}
return Status;
}
/**
Perform NoSubmit check for each Form in FormSet.
@param FormSet FormSet data structure.
@param CurrentForm Current input form data structure.
@param Statement The statement for this check.
@retval EFI_SUCCESS Form validation pass.
@retval other Form validation failed.
**/
EFI_STATUS
NoSubmitCheck (
IN FORM_BROWSER_FORMSET *FormSet,
IN OUT FORM_BROWSER_FORM **CurrentForm,
OUT FORM_BROWSER_STATEMENT **Statement
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
FORM_BROWSER_STATEMENT *Question;
FORM_BROWSER_FORM *Form;
LIST_ENTRY *LinkForm;
LinkForm = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, LinkForm)) {
Form = FORM_BROWSER_FORM_FROM_LINK (LinkForm);
LinkForm = GetNextNode (&FormSet->FormListHead, LinkForm);
if (*CurrentForm != NULL && *CurrentForm != Form) {
continue;
}
Link = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, Link)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
Status = ValidateQuestion (FormSet, Form, Question, EFI_HII_EXPRESSION_NO_SUBMIT_IF);
if (EFI_ERROR (Status)) {
if (*CurrentForm == NULL) {
*CurrentForm = Form;
}
if (Statement != NULL) {
*Statement = Question;
}
return Status;
}
Link = GetNextNode (&Form->StatementListHead, Link);
}
}
return EFI_SUCCESS;
}
/**
Fill storage's edit copy with settings requested from Configuration Driver.
@param Storage The storage which need to sync.
@param ConfigRequest The config request string which used to sync storage.
@param SyncOrRestore Sync the buffer to editbuffer or Restore the
editbuffer to buffer
if TRUE, copy the editbuffer to the buffer.
if FALSE, copy the buffer to the editbuffer.
@retval EFI_SUCCESS The function completed successfully.
**/
EFI_STATUS
SynchronizeStorage (
OUT BROWSER_STORAGE *Storage,
IN CHAR16 *ConfigRequest,
IN BOOLEAN SyncOrRestore
)
{
EFI_STATUS Status;
EFI_STRING Progress;
EFI_STRING Result;
UINTN BufferSize;
LIST_ENTRY *Link;
NAME_VALUE_NODE *Node;
UINT8 *Src;
UINT8 *Dst;
Status = EFI_SUCCESS;
Result = NULL;
if (Storage->Type == EFI_HII_VARSTORE_BUFFER ||
(Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
BufferSize = Storage->Size;
if (SyncOrRestore) {
Src = Storage->EditBuffer;
Dst = Storage->Buffer;
} else {
Src = Storage->Buffer;
Dst = Storage->EditBuffer;
}
if (ConfigRequest != NULL) {
Status = mHiiConfigRouting->BlockToConfig(
mHiiConfigRouting,
ConfigRequest,
Src,
BufferSize,
&Result,
&Progress
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = mHiiConfigRouting->ConfigToBlock (
mHiiConfigRouting,
Result,
Dst,
&BufferSize,
&Progress
);
if (Result != NULL) {
FreePool (Result);
}
} else {
CopyMem (Dst, Src, BufferSize);
}
} else if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
Link = GetFirstNode (&Storage->NameValueListHead);
while (!IsNull (&Storage->NameValueListHead, Link)) {
Node = NAME_VALUE_NODE_FROM_LINK (Link);
if ((ConfigRequest != NULL && StrStr (ConfigRequest, Node->Name) != NULL) ||
(ConfigRequest == NULL)) {
if (SyncOrRestore) {
NewStringCpy (&Node->Value, Node->EditValue);
} else {
NewStringCpy (&Node->EditValue, Node->Value);
}
}
Link = GetNextNode (&Storage->NameValueListHead, Link);
}
}
return Status;
}
/**
When discard the question value, call the callback function with Changed type
to inform the hii driver.
@param FormSet FormSet data structure.
@param Form Form data structure.
**/
VOID
SendDiscardInfoToDriver (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form
)
{
LIST_ENTRY *Link;
FORM_BROWSER_STATEMENT *Question;
EFI_IFR_TYPE_VALUE *TypeValue;
EFI_BROWSER_ACTION_REQUEST ActionRequest;
if (FormSet->ConfigAccess == NULL) {
return;
}
Link = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, Link)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
Link = GetNextNode (&Form->StatementListHead, Link);
if (Question->Storage == NULL || Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
if ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != EFI_IFR_FLAG_CALLBACK) {
continue;
}
if (Question->Operand == EFI_IFR_PASSWORD_OP) {
continue;
}
if (!Question->ValueChanged) {
continue;
}
//
// Restore the question value before call the CHANGED callback type.
//
GetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
if (Question->Operand == EFI_IFR_STRING_OP){
HiiSetString (FormSet->HiiHandle, Question->HiiValue.Value.string, (CHAR16*)Question->BufferValue, NULL);
}
if (Question->HiiValue.Type == EFI_IFR_TYPE_BUFFER) {
TypeValue = (EFI_IFR_TYPE_VALUE *) Question->BufferValue;
} else {
TypeValue = &Question->HiiValue.Value;
}
ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
FormSet->ConfigAccess->Callback (
FormSet->ConfigAccess,
EFI_BROWSER_ACTION_CHANGED,
Question->QuestionId,
Question->HiiValue.Type,
TypeValue,
&ActionRequest
);
}
}
/**
When submit the question value, call the callback function with Submitted type
to inform the hii driver.
@param FormSet FormSet data structure.
@param Form Form data structure.
**/
VOID
SubmitCallbackForForm (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form
)
{
LIST_ENTRY *Link;
FORM_BROWSER_STATEMENT *Question;
EFI_IFR_TYPE_VALUE *TypeValue;
EFI_BROWSER_ACTION_REQUEST ActionRequest;
if (FormSet->ConfigAccess == NULL) {
return;
}
Link = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, Link)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
Link = GetNextNode (&Form->StatementListHead, Link);
if (Question->Storage == NULL || Question->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
if ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != EFI_IFR_FLAG_CALLBACK) {
continue;
}
if (Question->Operand == EFI_IFR_PASSWORD_OP) {
continue;
}
if (Question->HiiValue.Type == EFI_IFR_TYPE_BUFFER) {
TypeValue = (EFI_IFR_TYPE_VALUE *) Question->BufferValue;
} else {
TypeValue = &Question->HiiValue.Value;
}
ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
FormSet->ConfigAccess->Callback (
FormSet->ConfigAccess,
EFI_BROWSER_ACTION_SUBMITTED,
Question->QuestionId,
Question->HiiValue.Type,
TypeValue,
&ActionRequest
);
}
}
/**
When value set Success, call the submit callback function.
@param FormSet FormSet data structure.
@param Form Form data structure.
**/
VOID
SubmitCallback (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form
)
{
FORM_BROWSER_FORM *CurrentForm;
LIST_ENTRY *Link;
if (Form != NULL) {
SubmitCallbackForForm(FormSet, Form);
return;
}
Link = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, Link)) {
CurrentForm = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&FormSet->FormListHead, Link);
SubmitCallbackForForm(FormSet, CurrentForm);
}
}
/**
Validate the HiiHandle.
@param HiiHandle The input HiiHandle which need to validate.
@retval TRUE The handle is validate.
@retval FALSE The handle is invalidate.
**/
BOOLEAN
ValidateHiiHandle (
EFI_HII_HANDLE HiiHandle
)
{
EFI_HII_HANDLE *HiiHandles;
UINTN Index;
BOOLEAN Find;
if (HiiHandle == NULL) {
return FALSE;
}
Find = FALSE;
HiiHandles = HiiGetHiiHandles (NULL);
ASSERT (HiiHandles != NULL);
for (Index = 0; HiiHandles[Index] != NULL; Index++) {
if (HiiHandles[Index] == HiiHandle) {
Find = TRUE;
break;
}
}
FreePool (HiiHandles);
return Find;
}
/**
Validate the FormSet. If the formset is not validate, remove it from the list.
@param FormSet The input FormSet which need to validate.
@retval TRUE The handle is validate.
@retval FALSE The handle is invalidate.
**/
BOOLEAN
ValidateFormSet (
FORM_BROWSER_FORMSET *FormSet
)
{
BOOLEAN Find;
ASSERT (FormSet != NULL);
Find = ValidateHiiHandle(FormSet->HiiHandle);
//
// Should not remove the formset which is being used.
//
if (!Find && (FormSet != gCurrentSelection->FormSet)) {
CleanBrowserStorage(FormSet);
RemoveEntryList (&FormSet->Link);
DestroyFormSet (FormSet);
}
return Find;
}
/**
Check whether need to enable the reset flag in form level.
Also clean all ValueChanged flag in question.
@param SetFlag Whether need to set the Reset Flag.
@param FormSet FormSet data structure.
@param Form Form data structure.
**/
VOID
UpdateFlagForForm (
IN BOOLEAN SetFlag,
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form
)
{
LIST_ENTRY *Link;
FORM_BROWSER_STATEMENT *Question;
BOOLEAN OldValue;
Link = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, Link)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
Link = GetNextNode (&Form->StatementListHead, Link);
if (!Question->ValueChanged) {
continue;
}
OldValue = Question->ValueChanged;
//
// Compare the buffer and editbuffer data to see whether the data has been saved.
//
Question->ValueChanged = IsQuestionValueChanged(FormSet, Form, Question, GetSetValueWithBothBuffer);
//
// Only the changed data has been saved, then need to set the reset flag.
//
if (SetFlag && OldValue && !Question->ValueChanged) {
if ((Question->QuestionFlags & EFI_IFR_FLAG_RESET_REQUIRED) != 0) {
gResetRequired = TRUE;
}
if ((Question->QuestionFlags & EFI_IFR_FLAG_RECONNECT_REQUIRED) != 0) {
gFlagReconnect = TRUE;
}
}
}
}
/**
Check whether need to enable the reset flag.
Also clean ValueChanged flag for all statements.
Form level or formset level, only one.
@param SetFlag Whether need to set the Reset Flag.
@param FormSet FormSet data structure.
@param Form Form data structure.
**/
VOID
ValueChangeResetFlagUpdate (
IN BOOLEAN SetFlag,
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form
)
{
FORM_BROWSER_FORM *CurrentForm;
LIST_ENTRY *Link;
if (Form != NULL) {
UpdateFlagForForm(SetFlag, FormSet, Form);
return;
}
Link = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, Link)) {
CurrentForm = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&FormSet->FormListHead, Link);
UpdateFlagForForm(SetFlag, FormSet, CurrentForm);
}
}
/**
Base on the return Progress string to find the form.
Base on the first return Offset/Width (Name) string to find the form
which keep this string.
@param FormSet FormSet data structure.
@param Storage Storage which has this Progress string.
@param Progress The Progress string which has the first fail string.
@param RetForm The return form for this progress string.
@param RetQuestion The return question for the error progress string.
@retval TRUE Find the error form and statement for this error progress string.
@retval FALSE Not find the error form.
**/
BOOLEAN
FindQuestionFromProgress (
IN FORM_BROWSER_FORMSET *FormSet,
IN BROWSER_STORAGE *Storage,
IN EFI_STRING Progress,
OUT FORM_BROWSER_FORM **RetForm,
OUT FORM_BROWSER_STATEMENT **RetQuestion
)
{
LIST_ENTRY *Link;
LIST_ENTRY *LinkStorage;
LIST_ENTRY *LinkStatement;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
FORM_BROWSER_FORM *Form;
EFI_STRING EndStr;
FORM_BROWSER_STATEMENT *Statement;
ASSERT ((*Progress == '&') || (*Progress == 'G'));
ConfigInfo = NULL;
*RetForm = NULL;
*RetQuestion = NULL;
//
// Skip the first "&" or the ConfigHdr part.
//
if (*Progress == '&') {
Progress++;
} else {
//
// Prepare the "NAME" or "OFFSET=0x####&WIDTH=0x####" string.
//
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
//
// For Name/Value type, Skip the ConfigHdr part.
//
EndStr = StrStr (Progress, L"PATH=");
ASSERT (EndStr != NULL);
while (*EndStr != '&') {
EndStr++;
}
*EndStr = '\0';
} else {
//
// For Buffer type, Skip the ConfigHdr part.
//
EndStr = StrStr (Progress, L"&OFFSET=");
ASSERT (EndStr != NULL);
*EndStr = '\0';
}
Progress = EndStr + 1;
}
//
// Prepare the "NAME" or "OFFSET=0x####&WIDTH=0x####" string.
//
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
//
// For Name/Value type, the data is "&Fred=16&George=16&Ron=12" formset,
// here, just keep the "Fred" string.
//
EndStr = StrStr (Progress, L"=");
ASSERT (EndStr != NULL);
*EndStr = '\0';
} else {
//
// For Buffer type, the data is "OFFSET=0x####&WIDTH=0x####&VALUE=0x####",
// here, just keep the "OFFSET=0x####&WIDTH=0x####" string.
//
EndStr = StrStr (Progress, L"&VALUE=");
ASSERT (EndStr != NULL);
*EndStr = '\0';
}
//
// Search in the form list.
//
Link = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&FormSet->FormListHead, Link);
//
// Search in the ConfigReqeust list in this form.
//
LinkStorage = GetFirstNode (&Form->ConfigRequestHead);
while (!IsNull (&Form->ConfigRequestHead, LinkStorage)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (LinkStorage);
LinkStorage = GetNextNode (&Form->ConfigRequestHead, LinkStorage);
if (Storage != ConfigInfo->Storage) {
continue;
}
if (StrStr (ConfigInfo->ConfigRequest, Progress) != NULL) {
//
// Find the OffsetWidth string in this form.
//
*RetForm = Form;
break;
}
}
if (*RetForm != NULL) {
LinkStatement = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, LinkStatement)) {
Statement = FORM_BROWSER_STATEMENT_FROM_LINK (LinkStatement);
LinkStatement = GetNextNode (&Form->StatementListHead, LinkStatement);
if (Statement->BlockName != NULL && StrStr (Statement->BlockName, Progress) != NULL) {
*RetQuestion = Statement;
break;
}
if (Statement->VariableName != NULL && StrStr (Statement->VariableName, Progress) != NULL) {
*RetQuestion = Statement;
break;
}
}
}
if (*RetForm != NULL) {
break;
}
}
//
// restore the OffsetWidth string to the original format.
//
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
*EndStr = '=';
} else {
*EndStr = '&';
}
return (BOOLEAN) (*RetForm != NULL);
}
/**
Base on the return Progress string to get the SyncConfigRequest and RestoreConfigRequest
for form and formset.
@param Storage Storage which has this Progress string.
@param ConfigRequest The ConfigRequest string.
@param Progress The Progress string which has the first fail string.
@param RestoreConfigRequest Return the RestoreConfigRequest string.
@param SyncConfigRequest Return the SyncConfigRequest string.
**/
VOID
GetSyncRestoreConfigRequest(
IN BROWSER_STORAGE *Storage,
IN EFI_STRING ConfigRequest,
IN EFI_STRING Progress,
OUT EFI_STRING *RestoreConfigRequest,
OUT EFI_STRING *SyncConfigRequest
)
{
EFI_STRING EndStr;
EFI_STRING ConfigHdrEndStr;
EFI_STRING ElementStr;
UINTN TotalSize;
UINTN RestoreEleSize;
UINTN SyncSize;
ASSERT ((*Progress == L'&') || (*Progress == L'G'));
//
// If the Progress starts with ConfigHdr, means the failure is in the first name / value pair.
// Need to restore all the fields in the ConfigRequest.
//
if (*Progress == L'G') {
*RestoreConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
ASSERT (*RestoreConfigRequest != NULL);
return;
}
//
// Find the first fail "NAME" or "OFFSET=0x####&WIDTH=0x####" string.
//
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
//
// For Name/Value type, the data is "&Fred=16&George=16&Ron=12" formset,
// here, just keep the "Fred" string.
//
EndStr = StrStr (Progress, L"=");
ASSERT (EndStr != NULL);
*EndStr = L'\0';
//
// Find the ConfigHdr in ConfigRequest.
//
ConfigHdrEndStr = StrStr (ConfigRequest, L"PATH=");
ASSERT (ConfigHdrEndStr != NULL);
while (*ConfigHdrEndStr != L'&') {
ConfigHdrEndStr++;
}
} else {
//
// For Buffer type, the data is "OFFSET=0x####&WIDTH=0x####&VALUE=0x####",
// here, just keep the "OFFSET=0x####&WIDTH=0x####" string.
//
EndStr = StrStr (Progress, L"&VALUE=");
ASSERT (EndStr != NULL);
*EndStr = L'\0';
//
// Find the ConfigHdr in ConfigRequest.
//
ConfigHdrEndStr = StrStr (ConfigRequest, L"&OFFSET=");
}
//
// Find the first fail pair in the ConfigRequest.
//
ElementStr = StrStr (ConfigRequest, Progress);
ASSERT (ElementStr != NULL);
//
// To get the RestoreConfigRequest.
//
RestoreEleSize = StrSize (ElementStr);
TotalSize = (ConfigHdrEndStr - ConfigRequest) * sizeof (CHAR16) + RestoreEleSize + sizeof (CHAR16);
*RestoreConfigRequest = AllocateZeroPool (TotalSize);
ASSERT (*RestoreConfigRequest != NULL);
StrnCpyS (*RestoreConfigRequest, TotalSize / sizeof (CHAR16), ConfigRequest, ConfigHdrEndStr - ConfigRequest);
StrCatS (*RestoreConfigRequest, TotalSize / sizeof (CHAR16), ElementStr);
//
// To get the SyncConfigRequest.
//
SyncSize = StrSize (ConfigRequest) - RestoreEleSize + sizeof (CHAR16);
*SyncConfigRequest = AllocateZeroPool (SyncSize);
ASSERT (*SyncConfigRequest != NULL);
StrnCpyS (*SyncConfigRequest, SyncSize / sizeof (CHAR16), ConfigRequest, SyncSize / sizeof (CHAR16) - 1);
//
// restore the Progress string to the original format.
//
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
*EndStr = L'=';
} else {
*EndStr = L'&';
}
}
/**
Popup an save error info and get user input.
@param TitleId The form title id.
@param HiiHandle The hii handle for this package.
@retval UINT32 The user select option for the save fail.
BROWSER_ACTION_DISCARD or BROWSER_ACTION_JUMP_TO_FORMSET
**/
UINT32
ConfirmSaveFail (
IN EFI_STRING_ID TitleId,
IN EFI_HII_HANDLE HiiHandle
)
{
CHAR16 *FormTitle;
CHAR16 *StringBuffer;
UINT32 RetVal;
FormTitle = GetToken (TitleId, HiiHandle);
StringBuffer = AllocateZeroPool (256 * sizeof (CHAR16));
ASSERT (StringBuffer != NULL);
UnicodeSPrint (
StringBuffer,
24 * sizeof (CHAR16) + StrSize (FormTitle),
L"Submit Fail For Form: %s.",
FormTitle
);
RetVal = PopupErrorMessage(BROWSER_SUBMIT_FAIL, NULL, NULL, StringBuffer);
FreePool (StringBuffer);
FreePool (FormTitle);
return RetVal;
}
/**
Popup an NO_SUBMIT_IF error info and get user input.
@param TitleId The form title id.
@param HiiHandle The hii handle for this package.
@retval UINT32 The user select option for the save fail.
BROWSER_ACTION_DISCARD or BROWSER_ACTION_JUMP_TO_FORMSET
**/
UINT32
ConfirmNoSubmitFail (
IN EFI_STRING_ID TitleId,
IN EFI_HII_HANDLE HiiHandle
)
{
CHAR16 *FormTitle;
CHAR16 *StringBuffer;
UINT32 RetVal;
FormTitle = GetToken (TitleId, HiiHandle);
StringBuffer = AllocateZeroPool (256 * sizeof (CHAR16));
ASSERT (StringBuffer != NULL);
UnicodeSPrint (
StringBuffer,
24 * sizeof (CHAR16) + StrSize (FormTitle),
L"NO_SUBMIT_IF error For Form: %s.",
FormTitle
);
RetVal = PopupErrorMessage(BROWSER_SUBMIT_FAIL_NO_SUBMIT_IF, NULL, NULL, StringBuffer);
FreePool (StringBuffer);
FreePool (FormTitle);
return RetVal;
}
/**
Discard data based on the input setting scope (Form, FormSet or System).
@param FormSet FormSet data structure.
@param Form Form data structure.
@param SettingScope Setting Scope for Discard action.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_UNSUPPORTED Unsupport SettingScope.
**/
EFI_STATUS
DiscardForm (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN BROWSER_SETTING_SCOPE SettingScope
)
{
LIST_ENTRY *Link;
FORMSET_STORAGE *Storage;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
FORM_BROWSER_FORMSET *LocalFormSet;
FORM_BROWSER_FORMSET *OldFormSet;
//
// Check the supported setting level.
//
if (SettingScope >= MaxLevel) {
return EFI_UNSUPPORTED;
}
if (SettingScope == FormLevel && IsNvUpdateRequiredForForm (Form)) {
ConfigInfo = NULL;
Link = GetFirstNode (&Form->ConfigRequestHead);
while (!IsNull (&Form->ConfigRequestHead, Link)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
Link = GetNextNode (&Form->ConfigRequestHead, Link);
if (ConfigInfo->Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
//
// Skip if there is no RequestElement
//
if (ConfigInfo->ElementCount == 0) {
continue;
}
//
// Prepare <ConfigResp>
//
SynchronizeStorage(ConfigInfo->Storage, ConfigInfo->ConfigRequest, FALSE);
//
// Call callback with Changed type to inform the driver.
//
SendDiscardInfoToDriver (FormSet, Form);
}
ValueChangeResetFlagUpdate (FALSE, FormSet, Form);
} else if (SettingScope == FormSetLevel && IsNvUpdateRequiredForFormSet (FormSet)) {
//
// Discard Buffer storage or Name/Value storage
//
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
Storage = FORMSET_STORAGE_FROM_LINK (Link);
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
//
// Skip if there is no RequestElement
//
if (Storage->ElementCount == 0) {
continue;
}
SynchronizeStorage(Storage->BrowserStorage, Storage->ConfigRequest, FALSE);
}
Link = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&FormSet->FormListHead, Link);
//
// Call callback with Changed type to inform the driver.
//
SendDiscardInfoToDriver (FormSet, Form);
}
ValueChangeResetFlagUpdate(FALSE, FormSet, NULL);
} else if (SettingScope == SystemLevel) {
//
// System Level Discard.
//
OldFormSet = mSystemLevelFormSet;
//
// Discard changed value for each FormSet in the maintain list.
//
Link = GetFirstNode (&gBrowserFormSetList);
while (!IsNull (&gBrowserFormSetList, Link)) {
LocalFormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
Link = GetNextNode (&gBrowserFormSetList, Link);
if (!ValidateFormSet(LocalFormSet)) {
continue;
}
mSystemLevelFormSet = LocalFormSet;
DiscardForm (LocalFormSet, NULL, FormSetLevel);
if (!IsHiiHandleInBrowserContext (LocalFormSet->HiiHandle)) {
//
// Remove maintain backup list after discard except for the current using FormSet.
//
CleanBrowserStorage(LocalFormSet);
RemoveEntryList (&LocalFormSet->Link);
DestroyFormSet (LocalFormSet);
}
}
mSystemLevelFormSet = OldFormSet;
}
return EFI_SUCCESS;
}
/**
Submit data for a form.
@param FormSet FormSet data structure.
@param Form Form data structure.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_UNSUPPORTED Unsupport SettingScope.
**/
EFI_STATUS
SubmitForForm (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
EFI_STRING ConfigResp;
EFI_STRING Progress;
BROWSER_STORAGE *Storage;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
BOOLEAN SubmitFormFail;
SubmitFormFail = FALSE;
if (!IsNvUpdateRequiredForForm (Form)) {
return EFI_SUCCESS;
}
Status = NoSubmitCheck (FormSet, &Form, NULL);
if (EFI_ERROR (Status)) {
return Status;
}
Link = GetFirstNode (&Form->ConfigRequestHead);
while (!IsNull (&Form->ConfigRequestHead, Link)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
Link = GetNextNode (&Form->ConfigRequestHead, Link);
Storage = ConfigInfo->Storage;
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
//
// Skip if there is no RequestElement
//
if (ConfigInfo->ElementCount == 0) {
continue;
}
//
// 1. Prepare <ConfigResp>
//
Status = StorageToConfigResp (ConfigInfo->Storage, &ConfigResp, ConfigInfo->ConfigRequest, TRUE);
if (EFI_ERROR (Status)) {
return Status;
}
//
// 2. Set value to hii config routine protocol.
//
Status = mHiiConfigRouting->RouteConfig (
mHiiConfigRouting,
ConfigResp,
&Progress
);
if (EFI_ERROR (Status)) {
//
// Submit fail, to get the RestoreConfigRequest and SyncConfigRequest.
//
SubmitFormFail = TRUE;
GetSyncRestoreConfigRequest (ConfigInfo->Storage, ConfigInfo->ConfigRequest, Progress, &ConfigInfo->RestoreConfigRequest, &ConfigInfo->SyncConfigRequest);
InsertTailList (&gBrowserSaveFailFormSetList, &ConfigInfo->SaveFailLink);
FreePool (ConfigResp);
continue;
}
FreePool (ConfigResp);
//
// 3. Config success, update storage shadow Buffer, only update the data belong to this form.
//
SynchronizeStorage (ConfigInfo->Storage, ConfigInfo->ConfigRequest, TRUE);
}
//
// 4. Process the save failed storage.
//
if (!IsListEmpty (&gBrowserSaveFailFormSetList)) {
if (ConfirmSaveFail (Form->FormTitle, FormSet->HiiHandle) == BROWSER_ACTION_DISCARD) {
Link = GetFirstNode (&gBrowserSaveFailFormSetList);
while (!IsNull (&gBrowserSaveFailFormSetList, Link)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_SAVE_FAIL_LINK (Link);
Link = GetNextNode (&gBrowserSaveFailFormSetList, Link);
//
// Process the submit fail question, base on the RestoreConfigRequest to restore the EditBuffer
// base on the SyncConfigRequest to Sync the buffer.
//
SynchronizeStorage (ConfigInfo->Storage, ConfigInfo->RestoreConfigRequest, FALSE);
FreePool (ConfigInfo->RestoreConfigRequest);
ConfigInfo->RestoreConfigRequest = NULL;
if (ConfigInfo->SyncConfigRequest != NULL) {
SynchronizeStorage(ConfigInfo->Storage, ConfigInfo->SyncConfigRequest, TRUE);
FreePool (ConfigInfo->SyncConfigRequest);
ConfigInfo->SyncConfigRequest = NULL;
}
Status = EFI_SUCCESS;
}
SendDiscardInfoToDriver (FormSet,Form);
} else {
Status = EFI_UNSUPPORTED;
}
//
// Free Form save fail list.
//
while (!IsListEmpty (&gBrowserSaveFailFormSetList)) {
Link = GetFirstNode (&gBrowserSaveFailFormSetList);
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_SAVE_FAIL_LINK (Link);
RemoveEntryList (&ConfigInfo->SaveFailLink);
}
}
//
// 5. Update the NV flag.
//
ValueChangeResetFlagUpdate(TRUE, FormSet, Form);
//
// 6 Call callback with Submitted type to inform the driver.
//
if (!SubmitFormFail) {
SubmitCallback (FormSet, Form);
}
return Status;
}
/**
Submit data for a formset.
@param FormSet FormSet data structure.
@param SkipProcessFail Whether skip to process the save failed storage.
If submit formset is called when do system level save,
set this value to true and process the failed formset
together.
if submit formset is called when do formset level save,
set the value to false and process the failed storage
right after process all storages for this formset.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_UNSUPPORTED Unsupport SettingScope.
**/
EFI_STATUS
SubmitForFormSet (
IN FORM_BROWSER_FORMSET *FormSet,
IN BOOLEAN SkipProcessFail
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
EFI_STRING ConfigResp;
EFI_STRING Progress;
BROWSER_STORAGE *Storage;
FORMSET_STORAGE *FormSetStorage;
FORM_BROWSER_FORM *Form;
BOOLEAN HasInserted;
FORM_BROWSER_STATEMENT *Question;
BOOLEAN SubmitFormSetFail;
BOOLEAN DiscardChange;
HasInserted = FALSE;
SubmitFormSetFail = FALSE;
DiscardChange = FALSE;
if (!IsNvUpdateRequiredForFormSet (FormSet)) {
return EFI_SUCCESS;
}
Form = NULL;
Status = NoSubmitCheck (FormSet, &Form, &Question);
if (EFI_ERROR (Status)) {
if (SkipProcessFail) {
//
// Process NO_SUBMIT check first, so insert it at head.
//
FormSet->SaveFailForm = Form;
FormSet->SaveFailStatement = Question;
InsertHeadList (&gBrowserSaveFailFormSetList, &FormSet->SaveFailLink);
}
return Status;
}
Form = NULL;
Question = NULL;
//
// Submit Buffer storage or Name/Value storage
//
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
Storage = FormSetStorage->BrowserStorage;
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
//
// Skip if there is no RequestElement
//
if (FormSetStorage->ElementCount == 0) {
continue;
}
//
// 1. Prepare <ConfigResp>
//
Status = StorageToConfigResp (Storage, &ConfigResp, FormSetStorage->ConfigRequest, TRUE);
if (EFI_ERROR (Status)) {
return Status;
}
//
// 2. Send <ConfigResp> to Routine config Protocol.
//
Status = mHiiConfigRouting->RouteConfig (
mHiiConfigRouting,
ConfigResp,
&Progress
);
if (EFI_ERROR (Status)) {
//
// Submit fail, to get the RestoreConfigRequest and SyncConfigRequest.
//
SubmitFormSetFail = TRUE;
GetSyncRestoreConfigRequest (FormSetStorage->BrowserStorage, FormSetStorage->ConfigRequest, Progress, &FormSetStorage->RestoreConfigRequest, &FormSetStorage->SyncConfigRequest);
InsertTailList (&FormSet->SaveFailStorageListHead, &FormSetStorage->SaveFailLink);
if (!HasInserted) {
//
// Call submit formset for system level, save the formset info
// and process later.
//
FindQuestionFromProgress(FormSet, Storage, Progress, &Form, &Question);
ASSERT (Form != NULL && Question != NULL);
FormSet->SaveFailForm = Form;
FormSet->SaveFailStatement = Question;
if (SkipProcessFail) {
InsertTailList (&gBrowserSaveFailFormSetList, &FormSet->SaveFailLink);
}
HasInserted = TRUE;
}
FreePool (ConfigResp);
continue;
}
FreePool (ConfigResp);
//
// 3. Config success, update storage shadow Buffer
//
SynchronizeStorage (Storage, FormSetStorage->ConfigRequest, TRUE);
}
//
// 4. Has save fail storage need to handle.
//
if (Form != NULL) {
if (!SkipProcessFail) {
//
// If not in system level, just handl the save failed storage here.
//
if (ConfirmSaveFail (Form->FormTitle, FormSet->HiiHandle) == BROWSER_ACTION_DISCARD) {
DiscardChange = TRUE;
Link = GetFirstNode (&FormSet->SaveFailStorageListHead);
while (!IsNull (&FormSet->SaveFailStorageListHead, Link)) {
FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (Link);
Storage = FormSetStorage->BrowserStorage;
Link = GetNextNode (&FormSet->SaveFailStorageListHead, Link);
//
// Process the submit fail question, base on the RestoreConfigRequest to restore the EditBuffer
// base on the SyncConfigRequest to Sync the buffer.
//
SynchronizeStorage (FormSetStorage->BrowserStorage, FormSetStorage->RestoreConfigRequest, FALSE);
FreePool (FormSetStorage->RestoreConfigRequest);
FormSetStorage->RestoreConfigRequest = NULL;
if (FormSetStorage->SyncConfigRequest != NULL) {
SynchronizeStorage(FormSetStorage->BrowserStorage, FormSetStorage->SyncConfigRequest, TRUE);
FreePool (FormSetStorage->SyncConfigRequest);
FormSetStorage->SyncConfigRequest = NULL;
}
Status = EFI_SUCCESS;
}
} else {
UiCopyMenuList(&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &Form->FormViewListHead);
gCurrentSelection->Action = UI_ACTION_REFRESH_FORMSET;
gCurrentSelection->Handle = FormSet->HiiHandle;
CopyGuid (&gCurrentSelection->FormSetGuid, &FormSet->Guid);
gCurrentSelection->FormId = Form->FormId;
gCurrentSelection->QuestionId = Question->QuestionId;
Status = EFI_UNSUPPORTED;
}
//
// Free FormSet save fail list.
//
while (!IsListEmpty (&FormSet->SaveFailStorageListHead)) {
Link = GetFirstNode (&FormSet->SaveFailStorageListHead);
FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (Link);
RemoveEntryList (&FormSetStorage->SaveFailLink);
}
} else {
//
// If in system level, just return error and handle the failed formset later.
//
Status = EFI_UNSUPPORTED;
}
}
//
// If user discard the change, send the discard info to driver.
//
if (DiscardChange) {
Link = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&FormSet->FormListHead, Link);
//
// Call callback with Changed type to inform the driver.
//
SendDiscardInfoToDriver (FormSet, Form);
}
}
//
// 5. Update the NV flag.
//
ValueChangeResetFlagUpdate(TRUE, FormSet, NULL);
//
// 6. Call callback with Submitted type to inform the driver.
//
if (!SubmitFormSetFail) {
SubmitCallback (FormSet, NULL);
}
return Status;
}
/**
Submit data for all formsets.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_UNSUPPORTED Unsupport SettingScope.
**/
EFI_STATUS
SubmitForSystem (
VOID
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
LIST_ENTRY *StorageLink;
FORMSET_STORAGE *FormSetStorage;
FORM_BROWSER_FORM *Form;
FORM_BROWSER_FORMSET *LocalFormSet;
UINT32 UserSelection;
FORM_BROWSER_STATEMENT *Question;
mSystemSubmit = TRUE;
Link = GetFirstNode (&gBrowserFormSetList);
while (!IsNull (&gBrowserFormSetList, Link)) {
LocalFormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
Link = GetNextNode (&gBrowserFormSetList, Link);
if (!ValidateFormSet(LocalFormSet)) {
continue;
}
Status = SubmitForFormSet (LocalFormSet, TRUE);
if (EFI_ERROR (Status)) {
continue;
}
//
// Remove maintain backup list after save except for the current using FormSet.
//
if (!IsHiiHandleInBrowserContext (LocalFormSet->HiiHandle)) {
CleanBrowserStorage(LocalFormSet);
RemoveEntryList (&LocalFormSet->Link);
DestroyFormSet (LocalFormSet);
}
}
mSystemSubmit = FALSE;
Status = EFI_SUCCESS;
//
// Process the save failed formsets.
//
Link = GetFirstNode (&gBrowserSaveFailFormSetList);
while (!IsNull (&gBrowserSaveFailFormSetList, Link)) {
LocalFormSet = FORM_BROWSER_FORMSET_FROM_SAVE_FAIL_LINK (Link);
Link = GetNextNode (&gBrowserSaveFailFormSetList, Link);
if (!ValidateFormSet(LocalFormSet)) {
continue;
}
Form = LocalFormSet->SaveFailForm;
Question= LocalFormSet->SaveFailStatement;
//
// Confirm with user, get user input.
//
if (IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
//
// NULL for SaveFailStorageListHead means error caused by NO_SUBMIT_IF check.
//
UserSelection = ConfirmNoSubmitFail (Form->FormTitle, LocalFormSet->HiiHandle);
} else {
UserSelection = ConfirmSaveFail (Form->FormTitle, LocalFormSet->HiiHandle);
}
if (UserSelection == BROWSER_ACTION_DISCARD) {
if (IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
StorageLink = GetFirstNode (&LocalFormSet->StorageListHead);
while (!IsNull (&LocalFormSet->StorageListHead, StorageLink)) {
FormSetStorage = FORMSET_STORAGE_FROM_LINK (StorageLink);
StorageLink = GetNextNode (&LocalFormSet->StorageListHead, StorageLink);
SynchronizeStorage(FormSetStorage->BrowserStorage, FormSetStorage->ConfigRequest, FALSE);
}
} else {
StorageLink = GetFirstNode (&LocalFormSet->SaveFailStorageListHead);
while (!IsNull (&LocalFormSet->SaveFailStorageListHead, StorageLink)) {
FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (StorageLink);
StorageLink = GetNextNode (&LocalFormSet->SaveFailStorageListHead, StorageLink);
//
// Process the submit fail question, base on the RestoreConfigRequest to restore the EditBuffer
// base on the SyncConfigRequest to Sync the buffer.
//
SynchronizeStorage (FormSetStorage->BrowserStorage, FormSetStorage->RestoreConfigRequest, FALSE);
FreePool (FormSetStorage->RestoreConfigRequest);
FormSetStorage->RestoreConfigRequest = NULL;
if ( FormSetStorage->SyncConfigRequest != NULL) {
SynchronizeStorage (FormSetStorage->BrowserStorage, FormSetStorage->SyncConfigRequest, TRUE);
FreePool (FormSetStorage->SyncConfigRequest);
FormSetStorage->SyncConfigRequest = NULL;
}
}
}
Link = GetFirstNode (&LocalFormSet->FormListHead);
while (!IsNull (&LocalFormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&LocalFormSet->FormListHead, Link);
//
// Call callback with Changed type to inform the driver.
//
SendDiscardInfoToDriver (LocalFormSet, Form);
}
if (!IsHiiHandleInBrowserContext (LocalFormSet->HiiHandle)) {
CleanBrowserStorage(LocalFormSet);
RemoveEntryList (&LocalFormSet->Link);
RemoveEntryList (&LocalFormSet->SaveFailLink);
DestroyFormSet (LocalFormSet);
} else {
ValueChangeResetFlagUpdate(FALSE, LocalFormSet, NULL);
}
} else {
if (IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
NoSubmitCheck (LocalFormSet, &Form, &Question);
}
UiCopyMenuList(&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &Form->FormViewListHead);
gCurrentSelection->Action = UI_ACTION_REFRESH_FORMSET;
gCurrentSelection->Handle = LocalFormSet->HiiHandle;
CopyGuid (&gCurrentSelection->FormSetGuid, &LocalFormSet->Guid);
gCurrentSelection->FormId = Form->FormId;
gCurrentSelection->QuestionId = Question->QuestionId;
Status = EFI_UNSUPPORTED;
break;
}
}
//
// Clean the list which will not process.
//
while (!IsListEmpty (&gBrowserSaveFailFormSetList)) {
Link = GetFirstNode (&gBrowserSaveFailFormSetList);
LocalFormSet = FORM_BROWSER_FORMSET_FROM_SAVE_FAIL_LINK (Link);
RemoveEntryList (&LocalFormSet->SaveFailLink);
while (!IsListEmpty (&LocalFormSet->SaveFailStorageListHead)) {
StorageLink = GetFirstNode (&LocalFormSet->SaveFailStorageListHead);
FormSetStorage = FORMSET_STORAGE_FROM_SAVE_FAIL_LINK (StorageLink);
RemoveEntryList (&FormSetStorage->SaveFailLink);
}
}
return Status;
}
/**
Submit data based on the input Setting level (Form, FormSet or System).
@param FormSet FormSet data structure.
@param Form Form data structure.
@param SettingScope Setting Scope for Submit action.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_UNSUPPORTED Unsupport SettingScope.
**/
EFI_STATUS
SubmitForm (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN BROWSER_SETTING_SCOPE SettingScope
)
{
EFI_STATUS Status;
switch (SettingScope) {
case FormLevel:
Status = SubmitForForm(FormSet, Form);
break;
case FormSetLevel:
Status = SubmitForFormSet (FormSet, FALSE);
break;
case SystemLevel:
Status = SubmitForSystem ();
break;
default:
Status = EFI_UNSUPPORTED;
break;
}
return Status;
}
/**
Converts the unicode character of the string from uppercase to lowercase.
This is a internal function.
@param ConfigString String to be converted
**/
VOID
EFIAPI
HiiToLower (
IN EFI_STRING ConfigString
)
{
EFI_STRING String;
BOOLEAN Lower;
ASSERT (ConfigString != NULL);
//
// Convert all hex digits in range [A-F] in the configuration header to [a-f]
//
for (String = ConfigString, Lower = FALSE; *String != L'\0'; String++) {
if (*String == L'=') {
Lower = TRUE;
} else if (*String == L'&') {
Lower = FALSE;
} else if (Lower && *String >= L'A' && *String <= L'F') {
*String = (CHAR16) (*String - L'A' + L'a');
}
}
}
/**
Find the point in the ConfigResp string for this question.
@param Question The question.
@param ConfigResp Get ConfigResp string.
@retval point to the offset where is for this question.
**/
CHAR16 *
GetOffsetFromConfigResp (
IN FORM_BROWSER_STATEMENT *Question,
IN CHAR16 *ConfigResp
)
{
CHAR16 *RequestElement;
CHAR16 *BlockData;
//
// Type is EFI_HII_VARSTORE_NAME_VALUE.
//
if (Question->Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
RequestElement = StrStr (ConfigResp, Question->VariableName);
if (RequestElement != NULL) {
//
// Skip the "VariableName=" field.
//
RequestElement += StrLen (Question->VariableName) + 1;
}
return RequestElement;
}
//
// Type is EFI_HII_VARSTORE_EFI_VARIABLE or EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER
//
//
// Convert all hex digits in ConfigResp to lower case before searching.
//
HiiToLower (ConfigResp);
//
// 1. Directly use Question->BlockName to find.
//
RequestElement = StrStr (ConfigResp, Question->BlockName);
if (RequestElement != NULL) {
//
// Skip the "Question->BlockName&VALUE=" field.
//
RequestElement += StrLen (Question->BlockName) + StrLen (L"&VALUE=");
return RequestElement;
}
//
// 2. Change all hex digits in Question->BlockName to lower and compare again.
//
BlockData = AllocateCopyPool (StrSize(Question->BlockName), Question->BlockName);
ASSERT (BlockData != NULL);
HiiToLower (BlockData);
RequestElement = StrStr (ConfigResp, BlockData);
FreePool (BlockData);
if (RequestElement != NULL) {
//
// Skip the "Question->BlockName&VALUE=" field.
//
RequestElement += StrLen (Question->BlockName) + StrLen (L"&VALUE=");
}
return RequestElement;
}
/**
Get Question default value from AltCfg string.
@param FormSet The form set.
@param Form The form
@param Question The question.
@retval EFI_SUCCESS Question is reset to default value.
**/
EFI_STATUS
GetDefaultValueFromAltCfg (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN OUT FORM_BROWSER_STATEMENT *Question
)
{
BROWSER_STORAGE *Storage;
FORMSET_STORAGE *FormSetStorage;
CHAR16 *ConfigResp;
CHAR16 *Value;
LIST_ENTRY *Link;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
Storage = Question->Storage;
if ((Storage == NULL) || (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) {
return EFI_NOT_FOUND;
}
//
// Try to get AltCfg string from form. If not found it, then
// try to get it from formset.
//
ConfigResp = NULL;
Link = GetFirstNode (&Form->ConfigRequestHead);
while (!IsNull (&Form->ConfigRequestHead, Link)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
Link = GetNextNode (&Form->ConfigRequestHead, Link);
if (Storage == ConfigInfo->Storage) {
ConfigResp = ConfigInfo->ConfigAltResp;
break;
}
}
if (ConfigResp == NULL) {
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (Storage == FormSetStorage->BrowserStorage) {
ConfigResp = FormSetStorage->ConfigAltResp;
break;
}
}
}
if (ConfigResp == NULL) {
return EFI_NOT_FOUND;
}
Value = GetOffsetFromConfigResp (Question, ConfigResp);
if (Value == NULL) {
return EFI_NOT_FOUND;
}
return BufferToValue (Question, Value);
}
/**
Get default Id value used for browser.
@param DefaultId The default id value used by hii.
@retval Browser used default value.
**/
INTN
GetDefaultIdForCallBack (
UINTN DefaultId
)
{
if (DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) {
return EFI_BROWSER_ACTION_DEFAULT_STANDARD;
} else if (DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
return EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING;
} else if (DefaultId == EFI_HII_DEFAULT_CLASS_SAFE) {
return EFI_BROWSER_ACTION_DEFAULT_SAFE;
} else if (DefaultId >= EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN && DefaultId < EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN + 0x1000) {
return EFI_BROWSER_ACTION_DEFAULT_PLATFORM + DefaultId - EFI_HII_DEFAULT_CLASS_PLATFORM_BEGIN;
} else if (DefaultId >= EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN && DefaultId < EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN + 0x1000) {
return EFI_BROWSER_ACTION_DEFAULT_HARDWARE + DefaultId - EFI_HII_DEFAULT_CLASS_HARDWARE_BEGIN;
} else if (DefaultId >= EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN && DefaultId < EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN + 0x1000) {
return EFI_BROWSER_ACTION_DEFAULT_FIRMWARE + DefaultId - EFI_HII_DEFAULT_CLASS_FIRMWARE_BEGIN;
} else {
return -1;
}
}
/**
Return data element in an Array by its Index.
@param Array The data array.
@param Type Type of the data in this array.
@param Index Zero based index for data in this array.
@retval Value The data to be returned
**/
UINT64
GetArrayData (
IN VOID *Array,
IN UINT8 Type,
IN UINTN Index
)
{
UINT64 Data;
ASSERT (Array != NULL);
Data = 0;
switch (Type) {
case EFI_IFR_TYPE_NUM_SIZE_8:
Data = (UINT64) *(((UINT8 *) Array) + Index);
break;
case EFI_IFR_TYPE_NUM_SIZE_16:
Data = (UINT64) *(((UINT16 *) Array) + Index);
break;
case EFI_IFR_TYPE_NUM_SIZE_32:
Data = (UINT64) *(((UINT32 *) Array) + Index);
break;
case EFI_IFR_TYPE_NUM_SIZE_64:
Data = (UINT64) *(((UINT64 *) Array) + Index);
break;
default:
break;
}
return Data;
}
/**
Set value of a data element in an Array by its Index.
@param Array The data array.
@param Type Type of the data in this array.
@param Index Zero based index for data in this array.
@param Value The value to be set.
**/
VOID
SetArrayData (
IN VOID *Array,
IN UINT8 Type,
IN UINTN Index,
IN UINT64 Value
)
{
ASSERT (Array != NULL);
switch (Type) {
case EFI_IFR_TYPE_NUM_SIZE_8:
*(((UINT8 *) Array) + Index) = (UINT8) Value;
break;
case EFI_IFR_TYPE_NUM_SIZE_16:
*(((UINT16 *) Array) + Index) = (UINT16) Value;
break;
case EFI_IFR_TYPE_NUM_SIZE_32:
*(((UINT32 *) Array) + Index) = (UINT32) Value;
break;
case EFI_IFR_TYPE_NUM_SIZE_64:
*(((UINT64 *) Array) + Index) = (UINT64) Value;
break;
default:
break;
}
}
/**
Search an Option of a Question by its value.
@param Question The Question
@param OptionValue Value for Option to be searched.
@retval Pointer Pointer to the found Option.
@retval NULL Option not found.
**/
QUESTION_OPTION *
ValueToOption (
IN FORM_BROWSER_STATEMENT *Question,
IN EFI_HII_VALUE *OptionValue
)
{
LIST_ENTRY *Link;
QUESTION_OPTION *Option;
INTN Result;
Link = GetFirstNode (&Question->OptionListHead);
while (!IsNull (&Question->OptionListHead, Link)) {
Option = QUESTION_OPTION_FROM_LINK (Link);
if ((CompareHiiValue (&Option->Value, OptionValue, &Result, NULL) == EFI_SUCCESS) && (Result == 0)) {
//
// Check the suppressif condition, only a valid option can be return.
//
if ((Option->SuppressExpression == NULL) ||
((EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) == ExpressFalse))) {
return Option;
}
}
Link = GetNextNode (&Question->OptionListHead, Link);
}
return NULL;
}
/**
Reset Question to its default value.
@param FormSet The form set.
@param Form The form.
@param Question The question.
@param DefaultId The Class of the default.
@retval EFI_SUCCESS Question is reset to default value.
**/
EFI_STATUS
GetQuestionDefault (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN FORM_BROWSER_STATEMENT *Question,
IN UINT16 DefaultId
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
QUESTION_DEFAULT *Default;
QUESTION_OPTION *Option;
EFI_HII_VALUE *HiiValue;
UINT8 Index;
EFI_STRING StrValue;
EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
EFI_BROWSER_ACTION_REQUEST ActionRequest;
INTN Action;
CHAR16 *NewString;
EFI_IFR_TYPE_VALUE *TypeValue;
UINT16 OriginalDefaultId;
FORMSET_DEFAULTSTORE *DefaultStore;
LIST_ENTRY *DefaultLink;
Status = EFI_NOT_FOUND;
StrValue = NULL;
OriginalDefaultId = DefaultId;
DefaultLink = GetFirstNode (&FormSet->DefaultStoreListHead);
//
// Statement don't have storage, skip them
//
if (Question->QuestionId == 0) {
return Status;
}
//
// There are Five ways to specify default value for a Question:
// 1, use call back function (highest priority)
// 2, use ExtractConfig function
// 3, use nested EFI_IFR_DEFAULT
// 4, set flags of EFI_ONE_OF_OPTION (provide Standard and Manufacturing default)
// 5, set flags of EFI_IFR_CHECKBOX (provide Standard and Manufacturing default) (lowest priority)
//
ReGetDefault:
HiiValue = &Question->HiiValue;
TypeValue = &HiiValue->Value;
if (HiiValue->Type == EFI_IFR_TYPE_BUFFER) {
//
// For orderedlist, need to pass the BufferValue to Callback function.
//
TypeValue = (EFI_IFR_TYPE_VALUE *) Question->BufferValue;
}
//
// Get Question defaut value from call back function.
//
ConfigAccess = FormSet->ConfigAccess;
Action = GetDefaultIdForCallBack (DefaultId);
if ((Action > 0) && ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) != 0) && (ConfigAccess != NULL)) {
ActionRequest = EFI_BROWSER_ACTION_REQUEST_NONE;
Status = ConfigAccess->Callback (
ConfigAccess,
Action,
Question->QuestionId,
HiiValue->Type,
TypeValue,
&ActionRequest
);
if (!EFI_ERROR (Status)) {
if (HiiValue->Type == EFI_IFR_TYPE_STRING) {
NewString = GetToken (Question->HiiValue.Value.string, FormSet->HiiHandle);
ASSERT (NewString != NULL);
ASSERT (StrLen (NewString) * sizeof (CHAR16) <= Question->StorageWidth);
if (StrLen (NewString) * sizeof (CHAR16) <= Question->StorageWidth) {
ZeroMem (Question->BufferValue, Question->StorageWidth);
CopyMem (Question->BufferValue, NewString, StrSize (NewString));
} else {
CopyMem (Question->BufferValue, NewString, Question->StorageWidth);
}
FreePool (NewString);
}
return Status;
}
}
//
// Get default value from altcfg string.
//
if (ConfigAccess != NULL) {
Status = GetDefaultValueFromAltCfg(FormSet, Form, Question);
if (!EFI_ERROR (Status)) {
return Status;
}
}
//
// EFI_IFR_DEFAULT has highest priority
//
if (!IsListEmpty (&Question->DefaultListHead)) {
Link = GetFirstNode (&Question->DefaultListHead);
while (!IsNull (&Question->DefaultListHead, Link)) {
Default = QUESTION_DEFAULT_FROM_LINK (Link);
if (Default->DefaultId == DefaultId) {
if (Default->ValueExpression != NULL) {
//
// Default is provided by an Expression, evaluate it
//
Status = EvaluateExpression (FormSet, Form, Default->ValueExpression);
if (EFI_ERROR (Status)) {
return Status;
}
if (Default->ValueExpression->Result.Type == EFI_IFR_TYPE_BUFFER) {
ASSERT (HiiValue->Type == EFI_IFR_TYPE_BUFFER && Question->BufferValue != NULL);
if (Question->StorageWidth > Default->ValueExpression->Result.BufferLen) {
CopyMem (Question->HiiValue.Buffer, Default->ValueExpression->Result.Buffer, Default->ValueExpression->Result.BufferLen);
Question->HiiValue.BufferLen = Default->ValueExpression->Result.BufferLen;
} else {
CopyMem (Question->HiiValue.Buffer, Default->ValueExpression->Result.Buffer, Question->StorageWidth);
Question->HiiValue.BufferLen = Question->StorageWidth;
}
FreePool (Default->ValueExpression->Result.Buffer);
}
HiiValue->Type = Default->ValueExpression->Result.Type;
CopyMem (&HiiValue->Value, &Default->ValueExpression->Result.Value, sizeof (EFI_IFR_TYPE_VALUE));
} else {
//
// Default value is embedded in EFI_IFR_DEFAULT
//
if (Default->Value.Type == EFI_IFR_TYPE_BUFFER) {
ASSERT (HiiValue->Buffer != NULL);
CopyMem (HiiValue->Buffer, Default->Value.Buffer, Default->Value.BufferLen);
} else {
CopyMem (HiiValue, &Default->Value, sizeof (EFI_HII_VALUE));
}
}
if (HiiValue->Type == EFI_IFR_TYPE_STRING) {
StrValue = HiiGetString (FormSet->HiiHandle, HiiValue->Value.string, NULL);
if (StrValue == NULL) {
return EFI_NOT_FOUND;
}
if (Question->StorageWidth > StrSize (StrValue)) {
ZeroMem (Question->BufferValue, Question->StorageWidth);
CopyMem (Question->BufferValue, StrValue, StrSize (StrValue));
} else {
CopyMem (Question->BufferValue, StrValue, Question->StorageWidth);
}
}
return EFI_SUCCESS;
}
Link = GetNextNode (&Question->DefaultListHead, Link);
}
}
//
// EFI_ONE_OF_OPTION
//
if ((Question->Operand == EFI_IFR_ONE_OF_OP) && !IsListEmpty (&Question->OptionListHead)) {
if (DefaultId <= EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
//
// OneOfOption could only provide Standard and Manufacturing default
//
Link = GetFirstNode (&Question->OptionListHead);
while (!IsNull (&Question->OptionListHead, Link)) {
Option = QUESTION_OPTION_FROM_LINK (Link);
Link = GetNextNode (&Question->OptionListHead, Link);
if ((Option->SuppressExpression != NULL) &&
EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse) {
continue;
}
if (((DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) && ((Option->Flags & EFI_IFR_OPTION_DEFAULT) != 0)) ||
((DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) && ((Option->Flags & EFI_IFR_OPTION_DEFAULT_MFG) != 0))
) {
CopyMem (HiiValue, &Option->Value, sizeof (EFI_HII_VALUE));
return EFI_SUCCESS;
}
}
}
}
//
// EFI_IFR_CHECKBOX - lowest priority
//
if (Question->Operand == EFI_IFR_CHECKBOX_OP) {
if (DefaultId <= EFI_HII_DEFAULT_CLASS_MANUFACTURING) {
//
// Checkbox could only provide Standard and Manufacturing default
//
if (((DefaultId == EFI_HII_DEFAULT_CLASS_STANDARD) && ((Question->Flags & EFI_IFR_CHECKBOX_DEFAULT) != 0)) ||
((DefaultId == EFI_HII_DEFAULT_CLASS_MANUFACTURING) && ((Question->Flags & EFI_IFR_CHECKBOX_DEFAULT_MFG) != 0))
) {
HiiValue->Value.b = TRUE;
}
return EFI_SUCCESS;
}
}
//
// For question without default value for current default Id, we try to re-get the default value form other default id in the DefaultStoreList.
// If get, will exit the function, if not, will choose next default id in the DefaultStoreList.
// The default id in DefaultStoreList are in ascending order to make sure choose the smallest default id every time.
//
while (!IsNull(&FormSet->DefaultStoreListHead, DefaultLink)) {
DefaultStore = FORMSET_DEFAULTSTORE_FROM_LINK(DefaultLink);
DefaultLink = GetNextNode (&FormSet->DefaultStoreListHead,DefaultLink);
DefaultId = DefaultStore->DefaultId;
if (DefaultId == OriginalDefaultId) {
continue;
}
goto ReGetDefault;
}
//
// For Questions without default value for all the default id in the DefaultStoreList.
//
Status = EFI_NOT_FOUND;
switch (Question->Operand) {
case EFI_IFR_CHECKBOX_OP:
HiiValue->Value.b = FALSE;
Status = EFI_SUCCESS;
break;
case EFI_IFR_NUMERIC_OP:
//
// Take minimum value as numeric default value
//
if ((Question->Flags & EFI_IFR_DISPLAY) == 0) {
//
// In EFI_IFR_DISPLAY_INT_DEC type, should check value with int* type.
//
switch (Question->Flags & EFI_IFR_NUMERIC_SIZE) {
case EFI_IFR_NUMERIC_SIZE_1:
if (((INT8) HiiValue->Value.u8 < (INT8) Question->Minimum) || ((INT8) HiiValue->Value.u8 > (INT8) Question->Maximum)) {
HiiValue->Value.u8 = (UINT8) Question->Minimum;
Status = EFI_SUCCESS;
}
break;
case EFI_IFR_NUMERIC_SIZE_2:
if (((INT16) HiiValue->Value.u16 < (INT16) Question->Minimum) || ((INT16) HiiValue->Value.u16 > (INT16) Question->Maximum)) {
HiiValue->Value.u16 = (UINT16) Question->Minimum;
Status = EFI_SUCCESS;
}
break;
case EFI_IFR_NUMERIC_SIZE_4:
if (((INT32) HiiValue->Value.u32 < (INT32) Question->Minimum) || ((INT32) HiiValue->Value.u32 > (INT32) Question->Maximum)) {
HiiValue->Value.u32 = (UINT32) Question->Minimum;
Status = EFI_SUCCESS;
}
break;
case EFI_IFR_NUMERIC_SIZE_8:
if (((INT64) HiiValue->Value.u64 < (INT64) Question->Minimum) || ((INT64) HiiValue->Value.u64 > (INT64) Question->Maximum)) {
HiiValue->Value.u64 = Question->Minimum;
Status = EFI_SUCCESS;
}
break;
default:
break;
}
} else {
if ((HiiValue->Value.u64 < Question->Minimum) || (HiiValue->Value.u64 > Question->Maximum)) {
HiiValue->Value.u64 = Question->Minimum;
Status = EFI_SUCCESS;
}
}
break;
case EFI_IFR_ONE_OF_OP:
//
// Take first oneof option as oneof's default value
//
if (ValueToOption (Question, HiiValue) == NULL) {
Link = GetFirstNode (&Question->OptionListHead);
while (!IsNull (&Question->OptionListHead, Link)) {
Option = QUESTION_OPTION_FROM_LINK (Link);
Link = GetNextNode (&Question->OptionListHead, Link);
if ((Option->SuppressExpression != NULL) &&
EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse) {
continue;
}
CopyMem (HiiValue, &Option->Value, sizeof (EFI_HII_VALUE));
Status = EFI_SUCCESS;
break;
}
}
break;
case EFI_IFR_ORDERED_LIST_OP:
//
// Take option sequence in IFR as ordered list's default value
//
Index = 0;
Link = GetFirstNode (&Question->OptionListHead);
while (!IsNull (&Question->OptionListHead, Link)) {
Status = EFI_SUCCESS;
Option = QUESTION_OPTION_FROM_LINK (Link);
Link = GetNextNode (&Question->OptionListHead, Link);
if ((Option->SuppressExpression != NULL) &&
EvaluateExpressionList(Option->SuppressExpression, FALSE, NULL, NULL) != ExpressFalse) {
continue;
}
SetArrayData (Question->BufferValue, Question->ValueType, Index, Option->Value.Value.u64);
Index++;
if (Index >= Question->MaxContainers) {
break;
}
}
break;
default:
break;
}
return Status;
}
/**
Get AltCfg string for current form.
@param FormSet Form data structure.
@param Form Form data structure.
@param DefaultId The Class of the default.
@param BrowserStorage The input request storage for the questions.
**/
VOID
ExtractAltCfgForForm (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN UINT16 DefaultId,
IN BROWSER_STORAGE *BrowserStorage
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
CHAR16 *ConfigResp;
CHAR16 *Progress;
CHAR16 *Result;
BROWSER_STORAGE *Storage;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
FORMSET_STORAGE *FormSetStorage;
//
// Check whether has get AltCfg string for this formset.
// If yes, no need to get AltCfg for form.
//
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
Storage = FormSetStorage->BrowserStorage;
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (BrowserStorage != NULL && BrowserStorage != Storage) {
continue;
}
if (Storage->Type != EFI_HII_VARSTORE_EFI_VARIABLE &&
FormSetStorage->ElementCount != 0 &&
FormSetStorage->HasCallAltCfg) {
return;
}
}
//
// Get AltCfg string for each form.
//
Link = GetFirstNode (&Form->ConfigRequestHead);
while (!IsNull (&Form->ConfigRequestHead, Link)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
Link = GetNextNode (&Form->ConfigRequestHead, Link);
Storage = ConfigInfo->Storage;
if (BrowserStorage != NULL && BrowserStorage != Storage) {
continue;
}
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
//
// 1. Skip if there is no RequestElement
//
if (ConfigInfo->ElementCount == 0) {
continue;
}
//
// 2. Get value through hii config routine protocol.
//
Status = mHiiConfigRouting->ExtractConfig (
mHiiConfigRouting,
ConfigInfo->ConfigRequest,
&Progress,
&Result
);
if (EFI_ERROR (Status)) {
continue;
}
//
// 3. Call ConfigRouting GetAltCfg(ConfigRoute, <ConfigResponse>, Guid, Name, DevicePath, AltCfgId, AltCfgResp)
// Get the default configuration string according to the default ID.
//
Status = mHiiConfigRouting->GetAltConfig (
mHiiConfigRouting,
Result,
&Storage->Guid,
Storage->Name,
NULL,
&DefaultId, // it can be NULL to get the current setting.
&ConfigResp
);
FreePool (Result);
if (EFI_ERROR (Status)) {
continue;
}
ConfigInfo->ConfigAltResp = ConfigResp;
}
}
/**
Clean AltCfg string for current form.
@param Form Form data structure.
**/
VOID
CleanAltCfgForForm (
IN FORM_BROWSER_FORM *Form
)
{
LIST_ENTRY *Link;
FORM_BROWSER_CONFIG_REQUEST *ConfigInfo;
Link = GetFirstNode (&Form->ConfigRequestHead);
while (!IsNull (&Form->ConfigRequestHead, Link)) {
ConfigInfo = FORM_BROWSER_CONFIG_REQUEST_FROM_LINK (Link);
Link = GetNextNode (&Form->ConfigRequestHead, Link);
if (ConfigInfo->ConfigAltResp != NULL) {
FreePool (ConfigInfo->ConfigAltResp);
ConfigInfo->ConfigAltResp = NULL;
}
}
}
/**
Get AltCfg string for current formset.
@param FormSet Form data structure.
@param DefaultId The Class of the default.
@param BrowserStorage The input request storage for the questions.
**/
VOID
ExtractAltCfgForFormSet (
IN FORM_BROWSER_FORMSET *FormSet,
IN UINT16 DefaultId,
IN BROWSER_STORAGE *BrowserStorage
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
CHAR16 *ConfigResp;
CHAR16 *Progress;
CHAR16 *Result;
BROWSER_STORAGE *Storage;
FORMSET_STORAGE *FormSetStorage;
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
Storage = FormSetStorage->BrowserStorage;
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (BrowserStorage != NULL && BrowserStorage != Storage) {
continue;
}
if (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE) {
continue;
}
//
// 1. Skip if there is no RequestElement
//
if (FormSetStorage->ElementCount == 0) {
continue;
}
FormSetStorage->HasCallAltCfg = TRUE;
//
// 2. Get value through hii config routine protocol.
//
Status = mHiiConfigRouting->ExtractConfig (
mHiiConfigRouting,
FormSetStorage->ConfigRequest,
&Progress,
&Result
);
if (EFI_ERROR (Status)) {
continue;
}
//
// 3. Call ConfigRouting GetAltCfg(ConfigRoute, <ConfigResponse>, Guid, Name, DevicePath, AltCfgId, AltCfgResp)
// Get the default configuration string according to the default ID.
//
Status = mHiiConfigRouting->GetAltConfig (
mHiiConfigRouting,
Result,
&Storage->Guid,
Storage->Name,
NULL,
&DefaultId, // it can be NULL to get the current setting.
&ConfigResp
);
FreePool (Result);
if (EFI_ERROR (Status)) {
continue;
}
FormSetStorage->ConfigAltResp = ConfigResp;
}
}
/**
Clean AltCfg string for current formset.
@param FormSet Form data structure.
**/
VOID
CleanAltCfgForFormSet (
IN FORM_BROWSER_FORMSET *FormSet
)
{
LIST_ENTRY *Link;
FORMSET_STORAGE *FormSetStorage;
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
FormSetStorage = FORMSET_STORAGE_FROM_LINK (Link);
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (FormSetStorage->ConfigAltResp != NULL) {
FreePool (FormSetStorage->ConfigAltResp);
FormSetStorage->ConfigAltResp = NULL;
}
FormSetStorage->HasCallAltCfg = FALSE;
}
}
/**
Reset Questions to their initial value or default value in a Form, Formset or System.
GetDefaultValueScope parameter decides which questions will reset
to its default value.
@param FormSet FormSet data structure.
@param Form Form data structure.
@param DefaultId The Class of the default.
@param SettingScope Setting Scope for Default action.
@param GetDefaultValueScope Get default value scope.
@param Storage Get default value only for this storage.
@param RetrieveValueFirst Whether call the retrieve call back to
get the initial value before get default
value.
@param SkipGetAltCfg Whether skip the get altcfg string process.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_UNSUPPORTED Unsupport SettingScope.
**/
EFI_STATUS
ExtractDefault (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN UINT16 DefaultId,
IN BROWSER_SETTING_SCOPE SettingScope,
IN BROWSER_GET_DEFAULT_VALUE GetDefaultValueScope,
IN BROWSER_STORAGE *Storage OPTIONAL,
IN BOOLEAN RetrieveValueFirst,
IN BOOLEAN SkipGetAltCfg
)
{
EFI_STATUS Status;
LIST_ENTRY *FormLink;
LIST_ENTRY *Link;
FORM_BROWSER_STATEMENT *Question;
FORM_BROWSER_FORMSET *LocalFormSet;
FORM_BROWSER_FORMSET *OldFormSet;
Status = EFI_SUCCESS;
//
// Check the supported setting level.
//
if (SettingScope >= MaxLevel || GetDefaultValueScope >= GetDefaultForMax) {
return EFI_UNSUPPORTED;
}
if (GetDefaultValueScope == GetDefaultForStorage && Storage == NULL) {
return EFI_UNSUPPORTED;
}
if (SettingScope == FormLevel) {
//
// Prepare the AltCfg String for form.
//
if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
ExtractAltCfgForForm (FormSet, Form, DefaultId, Storage);
}
//
// Extract Form default
//
Link = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, Link)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
Link = GetNextNode (&Form->StatementListHead, Link);
//
// If get default value only for this storage, check the storage first.
//
if ((GetDefaultValueScope == GetDefaultForStorage) && (Question->Storage != Storage)) {
continue;
}
//
// If get default value only for no storage question, just skip the question which has storage.
//
if ((GetDefaultValueScope == GetDefaultForNoStorage) && (Question->Storage != NULL)) {
continue;
}
//
// If Question is disabled, don't reset it to default
//
if (Question->Expression != NULL) {
if (EvaluateExpressionList(Question->Expression, TRUE, FormSet, Form) == ExpressDisable) {
continue;
}
}
if (RetrieveValueFirst) {
//
// Call the Retrieve call back to get the initial question value.
//
Status = ProcessRetrieveForQuestion(FormSet->ConfigAccess, Question, FormSet);
}
//
// If not request to get the initial value or get initial value fail, then get default value.
//
if (!RetrieveValueFirst || EFI_ERROR (Status)) {
Status = GetQuestionDefault (FormSet, Form, Question, DefaultId);
if (EFI_ERROR (Status)) {
continue;
}
}
//
// Synchronize Buffer storage's Edit buffer
//
if ((Question->Storage != NULL) &&
(Question->Storage->Type != EFI_HII_VARSTORE_EFI_VARIABLE)) {
SetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
}
}
//
// Clean the AltCfg String.
//
if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
CleanAltCfgForForm(Form);
}
} else if (SettingScope == FormSetLevel) {
//
// Prepare the AltCfg String for formset.
//
if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
ExtractAltCfgForFormSet (FormSet, DefaultId, Storage);
}
FormLink = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, FormLink)) {
Form = FORM_BROWSER_FORM_FROM_LINK (FormLink);
ExtractDefault (FormSet, Form, DefaultId, FormLevel, GetDefaultValueScope, Storage, RetrieveValueFirst, SkipGetAltCfg);
FormLink = GetNextNode (&FormSet->FormListHead, FormLink);
}
//
// Clean the AltCfg String.
//
if (!SkipGetAltCfg && (GetDefaultValueScope != GetDefaultForNoStorage)) {
CleanAltCfgForFormSet (FormSet);
}
} else if (SettingScope == SystemLevel) {
//
// Preload all Hii formset.
//
LoadAllHiiFormset();
OldFormSet = mSystemLevelFormSet;
//
// Set Default Value for each FormSet in the maintain list.
//
Link = GetFirstNode (&gBrowserFormSetList);
while (!IsNull (&gBrowserFormSetList, Link)) {
LocalFormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
Link = GetNextNode (&gBrowserFormSetList, Link);
if (!ValidateFormSet(LocalFormSet)) {
continue;
}
mSystemLevelFormSet = LocalFormSet;
ExtractDefault (LocalFormSet, NULL, DefaultId, FormSetLevel, GetDefaultValueScope, Storage, RetrieveValueFirst, SkipGetAltCfg);
}
mSystemLevelFormSet = OldFormSet;
}
return EFI_SUCCESS;
}
/**
Validate whether this question's value has changed.
@param FormSet FormSet data structure.
@param Form Form data structure.
@param Question Question to be initialized.
@param GetValueFrom Where to get value, may from editbuffer, buffer or hii driver.
@retval TRUE Question's value has changed.
@retval FALSE Question's value has not changed
**/
BOOLEAN
IsQuestionValueChanged (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form,
IN OUT FORM_BROWSER_STATEMENT *Question,
IN GET_SET_QUESTION_VALUE_WITH GetValueFrom
)
{
EFI_HII_VALUE BackUpValue;
CHAR8 *BackUpBuffer;
EFI_HII_VALUE BackUpValue2;
CHAR8 *BackUpBuffer2;
EFI_STATUS Status;
BOOLEAN ValueChanged;
UINTN BufferWidth;
//
// For quetion without storage, always mark it as data not changed.
//
if (Question->Storage == NULL && Question->Operand != EFI_IFR_TIME_OP && Question->Operand != EFI_IFR_DATE_OP) {
return FALSE;
}
BackUpBuffer = NULL;
BackUpBuffer2 = NULL;
ValueChanged = FALSE;
switch (Question->Operand) {
case EFI_IFR_ORDERED_LIST_OP:
BufferWidth = Question->StorageWidth;
BackUpBuffer = AllocateCopyPool (BufferWidth, Question->BufferValue);
ASSERT (BackUpBuffer != NULL);
break;
case EFI_IFR_STRING_OP:
case EFI_IFR_PASSWORD_OP:
BufferWidth = (UINTN) Question->Maximum * sizeof (CHAR16);
BackUpBuffer = AllocateCopyPool (BufferWidth, Question->BufferValue);
ASSERT (BackUpBuffer != NULL);
break;
default:
BufferWidth = 0;
break;
}
CopyMem (&BackUpValue, &Question->HiiValue, sizeof (EFI_HII_VALUE));
if (GetValueFrom == GetSetValueWithBothBuffer) {
Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
ASSERT_EFI_ERROR(Status);
switch (Question->Operand) {
case EFI_IFR_ORDERED_LIST_OP:
BufferWidth = Question->StorageWidth;
BackUpBuffer2 = AllocateCopyPool (BufferWidth, Question->BufferValue);
ASSERT (BackUpBuffer2 != NULL);
break;
case EFI_IFR_STRING_OP:
case EFI_IFR_PASSWORD_OP:
BufferWidth = (UINTN) Question->Maximum * sizeof (CHAR16);
BackUpBuffer2 = AllocateCopyPool (BufferWidth, Question->BufferValue);
ASSERT (BackUpBuffer2 != NULL);
break;
default:
BufferWidth = 0;
break;
}
CopyMem (&BackUpValue2, &Question->HiiValue, sizeof (EFI_HII_VALUE));
Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithBuffer);
ASSERT_EFI_ERROR(Status);
if (CompareMem (&BackUpValue2, &Question->HiiValue, sizeof (EFI_HII_VALUE)) != 0 ||
CompareMem (BackUpBuffer2, Question->BufferValue, BufferWidth) != 0) {
ValueChanged = TRUE;
}
} else {
Status = GetQuestionValue (FormSet, Form, Question, GetValueFrom);
ASSERT_EFI_ERROR(Status);
if (CompareMem (&BackUpValue, &Question->HiiValue, sizeof (EFI_HII_VALUE)) != 0 ||
CompareMem (BackUpBuffer, Question->BufferValue, BufferWidth) != 0) {
ValueChanged = TRUE;
}
}
CopyMem (&Question->HiiValue, &BackUpValue, sizeof (EFI_HII_VALUE));
if (BackUpBuffer != NULL) {
CopyMem (Question->BufferValue, BackUpBuffer, BufferWidth);
FreePool (BackUpBuffer);
}
if (BackUpBuffer2 != NULL) {
FreePool (BackUpBuffer2);
}
Question->ValueChanged = ValueChanged;
return ValueChanged;
}
/**
Initialize Question's Edit copy from Storage.
@param Selection Selection contains the information about
the Selection, form and formset to be displayed.
Selection action may be updated in retrieve callback.
If Selection is NULL, only initialize Question value.
@param FormSet FormSet data structure.
@param Form Form data structure.
@retval EFI_SUCCESS The function completed successfully.
**/
EFI_STATUS
LoadFormConfig (
IN OUT UI_MENU_SELECTION *Selection,
IN FORM_BROWSER_FORMSET *FormSet,
IN FORM_BROWSER_FORM *Form
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
FORM_BROWSER_STATEMENT *Question;
Link = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, Link)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (Link);
//
// Initialize local copy of Value for each Question
//
if (Question->Operand == EFI_IFR_PASSWORD_OP && (Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK)== 0) {
Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithHiiDriver);
} else {
Status = GetQuestionValue (FormSet, Form, Question, GetSetValueWithEditBuffer);
}
if (EFI_ERROR (Status)) {
return Status;
}
if ((Question->Operand == EFI_IFR_STRING_OP) || (Question->Operand == EFI_IFR_PASSWORD_OP)) {
HiiSetString (FormSet->HiiHandle, Question->HiiValue.Value.string, (CHAR16*)Question->BufferValue, NULL);
}
Link = GetNextNode (&Form->StatementListHead, Link);
}
return EFI_SUCCESS;
}
/**
Initialize Question's Edit copy from Storage for the whole Formset.
@param Selection Selection contains the information about
the Selection, form and formset to be displayed.
Selection action may be updated in retrieve callback.
If Selection is NULL, only initialize Question value.
@param FormSet FormSet data structure.
@retval EFI_SUCCESS The function completed successfully.
**/
EFI_STATUS
LoadFormSetConfig (
IN OUT UI_MENU_SELECTION *Selection,
IN FORM_BROWSER_FORMSET *FormSet
)
{
EFI_STATUS Status;
LIST_ENTRY *Link;
FORM_BROWSER_FORM *Form;
Link = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
//
// Initialize local copy of Value for each Form
//
Status = LoadFormConfig (Selection, FormSet, Form);
if (EFI_ERROR (Status)) {
return Status;
}
Link = GetNextNode (&FormSet->FormListHead, Link);
}
//
// Finished question initialization.
//
FormSet->QuestionInited = TRUE;
return EFI_SUCCESS;
}
/**
Remove the Request element from the Config Request.
@param Storage Pointer to the browser storage.
@param RequestElement The pointer to the Request element.
**/
VOID
RemoveElement (
IN OUT BROWSER_STORAGE *Storage,
IN CHAR16 *RequestElement
)
{
CHAR16 *NewStr;
CHAR16 *DestStr;
ASSERT (Storage->ConfigRequest != NULL && RequestElement != NULL);
NewStr = StrStr (Storage->ConfigRequest, RequestElement);
if (NewStr == NULL) {
return;
}
//
// Remove this element from this ConfigRequest.
//
DestStr = NewStr;
NewStr += StrLen (RequestElement);
CopyMem (DestStr, NewStr, StrSize (NewStr));
Storage->SpareStrLen += StrLen (RequestElement);
}
/**
Adjust config request in storage, remove the request elements existed in the input ConfigRequest.
@param Storage Pointer to the formset storage.
@param ConfigRequest The pointer to the Request element.
**/
VOID
RemoveConfigRequest (
FORMSET_STORAGE *Storage,
CHAR16 *ConfigRequest
)
{
CHAR16 *RequestElement;
CHAR16 *NextRequestElement;
CHAR16 *SearchKey;
//
// No request element in it, just return.
//
if (ConfigRequest == NULL) {
return;
}
if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
//
// "&Name1&Name2" section for EFI_HII_VARSTORE_NAME_VALUE storage
//
SearchKey = L"&";
} else {
//
// "&OFFSET=####&WIDTH=####" section for EFI_HII_VARSTORE_BUFFER storage
//
SearchKey = L"&OFFSET";
}
//
// Find SearchKey storage
//
if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
RequestElement = StrStr (ConfigRequest, L"PATH");
ASSERT (RequestElement != NULL);
RequestElement = StrStr (RequestElement, SearchKey);
} else {
RequestElement = StrStr (ConfigRequest, SearchKey);
}
while (RequestElement != NULL) {
//
// +1 to avoid find header itself.
//
NextRequestElement = StrStr (RequestElement + 1, SearchKey);
//
// The last Request element in configRequest string.
//
if (NextRequestElement != NULL) {
//
// Replace "&" with '\0'.
//
*NextRequestElement = L'\0';
}
RemoveElement (Storage->BrowserStorage, RequestElement);
if (NextRequestElement != NULL) {
//
// Restore '&' with '\0' for later used.
//
*NextRequestElement = L'&';
}
RequestElement = NextRequestElement;
}
//
// If no request element remain, just remove the ConfigRequest string.
//
if (StrCmp (Storage->BrowserStorage->ConfigRequest, Storage->ConfigHdr) == 0) {
FreePool (Storage->BrowserStorage->ConfigRequest);
Storage->BrowserStorage->ConfigRequest = NULL;
Storage->BrowserStorage->SpareStrLen = 0;
}
}
/**
Base on the current formset info, clean the ConfigRequest string in browser storage.
@param FormSet Pointer of the FormSet
**/
VOID
CleanBrowserStorage (
IN OUT FORM_BROWSER_FORMSET *FormSet
)
{
LIST_ENTRY *Link;
FORMSET_STORAGE *Storage;
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
Storage = FORMSET_STORAGE_FROM_LINK (Link);
Link = GetNextNode (&FormSet->StorageListHead, Link);
if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
if (Storage->ConfigRequest == NULL || Storage->BrowserStorage->ConfigRequest == NULL) {
continue;
}
RemoveConfigRequest (Storage, Storage->ConfigRequest);
} else if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_BUFFER ||
Storage->BrowserStorage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
if (Storage->BrowserStorage->ConfigRequest != NULL) {
FreePool (Storage->BrowserStorage->ConfigRequest);
Storage->BrowserStorage->ConfigRequest = NULL;
}
Storage->BrowserStorage->Initialized = FALSE;
}
}
}
/**
Check whether current element in the ConfigReqeust string.
@param BrowserStorage Storage which includes ConfigReqeust.
@param RequestElement New element need to check.
@retval TRUE The Element is in the ConfigReqeust string.
@retval FALSE The Element not in the configReqeust String.
**/
BOOLEAN
ElementValidation (
BROWSER_STORAGE *BrowserStorage,
CHAR16 *RequestElement
)
{
return StrStr (BrowserStorage->ConfigRequest, RequestElement) != NULL ? TRUE : FALSE;
}
/**
Append the Request element to the Config Request.
@param ConfigRequest Current ConfigRequest info.
@param SpareStrLen Current remain free buffer for config reqeust.
@param RequestElement New Request element.
**/
VOID
AppendConfigRequest (
IN OUT CHAR16 **ConfigRequest,
IN OUT UINTN *SpareStrLen,
IN CHAR16 *RequestElement
)
{
CHAR16 *NewStr;
UINTN StringSize;
UINTN StrLength;
UINTN MaxLen;
StrLength = StrLen (RequestElement);
StringSize = (*ConfigRequest != NULL) ? StrSize (*ConfigRequest) : sizeof (CHAR16);
MaxLen = StringSize / sizeof (CHAR16) + *SpareStrLen;
//
// Append <RequestElement> to <ConfigRequest>
//
if (StrLength > *SpareStrLen) {
//
// Old String buffer is not sufficient for RequestElement, allocate a new one
//
MaxLen = StringSize / sizeof (CHAR16) + CONFIG_REQUEST_STRING_INCREMENTAL;
NewStr = AllocateZeroPool (MaxLen * sizeof (CHAR16));
ASSERT (NewStr != NULL);
if (*ConfigRequest != NULL) {
CopyMem (NewStr, *ConfigRequest, StringSize);
FreePool (*ConfigRequest);
}
*ConfigRequest = NewStr;
*SpareStrLen = CONFIG_REQUEST_STRING_INCREMENTAL;
}
StrCatS (*ConfigRequest, MaxLen, RequestElement);
*SpareStrLen -= StrLength;
}
/**
Adjust the config request info, remove the request elements which already in AllConfigRequest string.
@param Storage Form set Storage.
@param Request The input request string.
@param RespString Whether the input is ConfigRequest or ConfigResp format.
@retval TRUE Has element not covered by current used elements, need to continue to call ExtractConfig
@retval FALSE All elements covered by current used elements.
**/
BOOLEAN
ConfigRequestAdjust (
IN BROWSER_STORAGE *Storage,
IN CHAR16 *Request,
IN BOOLEAN RespString
)
{
CHAR16 *RequestElement;
CHAR16 *NextRequestElement;
CHAR16 *NextElementBakup;
CHAR16 *SearchKey;
CHAR16 *ValueKey;
BOOLEAN RetVal;
CHAR16 *ConfigRequest;
RetVal = FALSE;
NextElementBakup = NULL;
ValueKey = NULL;
if (Request != NULL) {
ConfigRequest = Request;
} else {
ConfigRequest = Storage->ConfigRequest;
}
if (Storage->ConfigRequest == NULL) {
Storage->ConfigRequest = AllocateCopyPool (StrSize (ConfigRequest), ConfigRequest);
return TRUE;
}
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
//
// "&Name1&Name2" section for EFI_HII_VARSTORE_NAME_VALUE storage
//
SearchKey = L"&";
} else {
//
// "&OFFSET=####&WIDTH=####" section for EFI_HII_VARSTORE_BUFFER storage
//
SearchKey = L"&OFFSET";
ValueKey = L"&VALUE";
}
//
// Find SearchKey storage
//
if (Storage->Type == EFI_HII_VARSTORE_NAME_VALUE) {
RequestElement = StrStr (ConfigRequest, L"PATH");
ASSERT (RequestElement != NULL);
RequestElement = StrStr (RequestElement, SearchKey);
} else {
RequestElement = StrStr (ConfigRequest, SearchKey);
}
while (RequestElement != NULL) {
//
// +1 to avoid find header itself.
//
NextRequestElement = StrStr (RequestElement + 1, SearchKey);
//
// The last Request element in configRequest string.
//
if (NextRequestElement != NULL) {
if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
NextElementBakup = NextRequestElement;
NextRequestElement = StrStr (RequestElement, ValueKey);
ASSERT (NextRequestElement != NULL);
}
//
// Replace "&" with '\0'.
//
*NextRequestElement = L'\0';
} else {
if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
NextElementBakup = NextRequestElement;
NextRequestElement = StrStr (RequestElement, ValueKey);
ASSERT (NextRequestElement != NULL);
//
// Replace "&" with '\0'.
//
*NextRequestElement = L'\0';
}
}
if (!ElementValidation (Storage, RequestElement)) {
//
// Add this element to the Storage->BrowserStorage->AllRequestElement.
//
AppendConfigRequest(&Storage->ConfigRequest, &Storage->SpareStrLen, RequestElement);
RetVal = TRUE;
}
if (NextRequestElement != NULL) {
//
// Restore '&' with '\0' for later used.
//
*NextRequestElement = L'&';
}
if (RespString && (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER)) {
RequestElement = NextElementBakup;
} else {
RequestElement = NextRequestElement;
}
}
return RetVal;
}
/**
Fill storage's edit copy with settings requested from Configuration Driver.
@param FormSet FormSet data structure.
@param Storage Buffer Storage.
**/
VOID
LoadStorage (
IN FORM_BROWSER_FORMSET *FormSet,
IN FORMSET_STORAGE *Storage
)
{
EFI_STATUS Status;
EFI_STRING Progress;
EFI_STRING Result;
CHAR16 *StrPtr;
EFI_STRING ConfigRequest;
UINTN StrLen;
ConfigRequest = NULL;
switch (Storage->BrowserStorage->Type) {
case EFI_HII_VARSTORE_EFI_VARIABLE:
return;
case EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER:
if (Storage->BrowserStorage->ConfigRequest != NULL) {
ConfigRequestAdjust(Storage->BrowserStorage, Storage->ConfigRequest, FALSE);
return;
}
break;
case EFI_HII_VARSTORE_BUFFER:
case EFI_HII_VARSTORE_NAME_VALUE:
//
// Skip if there is no RequestElement.
//
if (Storage->ElementCount == 0) {
return;
}
//
// Just update the ConfigRequest, if storage already initialized.
//
if (Storage->BrowserStorage->Initialized) {
ConfigRequestAdjust(Storage->BrowserStorage, Storage->ConfigRequest, FALSE);
return;
}
Storage->BrowserStorage->Initialized = TRUE;
break;
default:
return;
}
if (Storage->BrowserStorage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
//
// Create the config request string to get all fields for this storage.
// Allocate and fill a buffer large enough to hold the <ConfigHdr> template
// followed by "&OFFSET=0&WIDTH=WWWW"followed by a Null-terminator
//
StrLen = StrSize (Storage->ConfigHdr) + 20 * sizeof (CHAR16);
ConfigRequest = AllocateZeroPool (StrLen);
ASSERT (ConfigRequest != NULL);
UnicodeSPrint (
ConfigRequest,
StrLen,
L"%s&OFFSET=0&WIDTH=%04x",
Storage->ConfigHdr,
Storage->BrowserStorage->Size);
} else {
ConfigRequest = Storage->ConfigRequest;
}
//
// Request current settings from Configuration Driver
//
Status = mHiiConfigRouting->ExtractConfig (
mHiiConfigRouting,
ConfigRequest,
&Progress,
&Result
);
//
// If get value fail, extract default from IFR binary
//
if (EFI_ERROR (Status)) {
ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD, FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE, TRUE);
} else {
//
// Convert Result from <ConfigAltResp> to <ConfigResp>
//
StrPtr = StrStr (Result, L"&GUID=");
if (StrPtr != NULL) {
*StrPtr = L'\0';
}
Status = ConfigRespToStorage (Storage->BrowserStorage, Result);
FreePool (Result);
}
Storage->BrowserStorage->ConfigRequest = AllocateCopyPool (StrSize (Storage->ConfigRequest), Storage->ConfigRequest);
//
// Input NULL for ConfigRequest field means sync all fields from editbuffer to buffer.
//
SynchronizeStorage(Storage->BrowserStorage, NULL, TRUE);
if (Storage->BrowserStorage->Type != EFI_HII_VARSTORE_NAME_VALUE) {
if (ConfigRequest != NULL) {
FreePool (ConfigRequest);
}
}
}
/**
Get Value changed status from old question.
@param NewFormSet FormSet data structure.
@param OldQuestion Old question which has value changed.
**/
VOID
SyncStatusForQuestion (
IN OUT FORM_BROWSER_FORMSET *NewFormSet,
IN FORM_BROWSER_STATEMENT *OldQuestion
)
{
LIST_ENTRY *Link;
LIST_ENTRY *QuestionLink;
FORM_BROWSER_FORM *Form;
FORM_BROWSER_STATEMENT *Question;
//
// For each form in one formset.
//
Link = GetFirstNode (&NewFormSet->FormListHead);
while (!IsNull (&NewFormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&NewFormSet->FormListHead, Link);
//
// for each question in one form.
//
QuestionLink = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, QuestionLink)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (QuestionLink);
QuestionLink = GetNextNode (&Form->StatementListHead, QuestionLink);
if (Question->QuestionId == OldQuestion->QuestionId) {
Question->ValueChanged = TRUE;
return;
}
}
}
}
/**
Get Value changed status from old formset.
@param NewFormSet FormSet data structure.
@param OldFormSet FormSet data structure.
**/
VOID
SyncStatusForFormSet (
IN OUT FORM_BROWSER_FORMSET *NewFormSet,
IN FORM_BROWSER_FORMSET *OldFormSet
)
{
LIST_ENTRY *Link;
LIST_ENTRY *QuestionLink;
FORM_BROWSER_FORM *Form;
FORM_BROWSER_STATEMENT *Question;
//
// For each form in one formset.
//
Link = GetFirstNode (&OldFormSet->FormListHead);
while (!IsNull (&OldFormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
Link = GetNextNode (&OldFormSet->FormListHead, Link);
//
// for each question in one form.
//
QuestionLink = GetFirstNode (&Form->StatementListHead);
while (!IsNull (&Form->StatementListHead, QuestionLink)) {
Question = FORM_BROWSER_STATEMENT_FROM_LINK (QuestionLink);
QuestionLink = GetNextNode (&Form->StatementListHead, QuestionLink);
if (!Question->ValueChanged) {
continue;
}
//
// Find the same question in new formset and update the value changed flag.
//
SyncStatusForQuestion (NewFormSet, Question);
}
}
}
/**
Get current setting of Questions.
@param FormSet FormSet data structure.
**/
VOID
InitializeCurrentSetting (
IN OUT FORM_BROWSER_FORMSET *FormSet
)
{
LIST_ENTRY *Link;
FORMSET_STORAGE *Storage;
FORM_BROWSER_FORMSET *OldFormSet;
//
// Try to find pre FormSet in the maintain backup list.
// If old formset != NULL, destroy this formset. Add new formset to gBrowserFormSetList.
//
OldFormSet = GetFormSetFromHiiHandle (FormSet->HiiHandle);
if (OldFormSet != NULL) {
SyncStatusForFormSet (FormSet, OldFormSet);
RemoveEntryList (&OldFormSet->Link);
DestroyFormSet (OldFormSet);
}
InsertTailList (&gBrowserFormSetList, &FormSet->Link);
//
// Extract default from IFR binary for no storage questions.
//
ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD, FormSetLevel, GetDefaultForNoStorage, NULL, TRUE, FALSE);
//
// Request current settings from Configuration Driver
//
Link = GetFirstNode (&FormSet->StorageListHead);
while (!IsNull (&FormSet->StorageListHead, Link)) {
Storage = FORMSET_STORAGE_FROM_LINK (Link);
LoadStorage (FormSet, Storage);
Link = GetNextNode (&FormSet->StorageListHead, Link);
}
}
/**
Fetch the Ifr binary data of a FormSet.
@param Handle PackageList Handle
@param FormSetGuid On input, GUID or class GUID of a formset. If not
specified (NULL or zero GUID), take the first
FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
found in package list.
On output, GUID of the formset found(if not NULL).
@param BinaryLength The length of the FormSet IFR binary.
@param BinaryData The buffer designed to receive the FormSet.
@retval EFI_SUCCESS Buffer filled with the requested FormSet.
BufferLength was updated.
@retval EFI_INVALID_PARAMETER The handle is unknown.
@retval EFI_NOT_FOUND A form or FormSet on the requested handle cannot
be found with the requested FormId.
**/
EFI_STATUS
GetIfrBinaryData (
IN EFI_HII_HANDLE Handle,
IN OUT EFI_GUID *FormSetGuid,
OUT UINTN *BinaryLength,
OUT UINT8 **BinaryData
)
{
EFI_STATUS Status;
EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
UINTN BufferSize;
UINT8 *Package;
UINT8 *OpCodeData;
UINT32 Offset;
UINT32 Offset2;
UINT32 PackageListLength;
EFI_HII_PACKAGE_HEADER PackageHeader;
UINT8 Index;
UINT8 NumberOfClassGuid;
BOOLEAN ClassGuidMatch;
EFI_GUID *ClassGuid;
EFI_GUID *ComparingGuid;
OpCodeData = NULL;
Package = NULL;
ZeroMem (&PackageHeader, sizeof (EFI_HII_PACKAGE_HEADER));
//
// if FormSetGuid is NULL or zero GUID, return first Setup FormSet in the package list
//
if (FormSetGuid == NULL) {
ComparingGuid = &gZeroGuid;
} else {
ComparingGuid = FormSetGuid;
}
//
// Get HII PackageList
//
BufferSize = 0;
HiiPackageList = NULL;
Status = mHiiDatabase->ExportPackageLists (mHiiDatabase, Handle, &BufferSize, HiiPackageList);
if (Status == EFI_BUFFER_TOO_SMALL) {
HiiPackageList = AllocatePool (BufferSize);
ASSERT (HiiPackageList != NULL);
Status = mHiiDatabase->ExportPackageLists (mHiiDatabase, Handle, &BufferSize, HiiPackageList);
}
if (EFI_ERROR (Status)) {
return Status;
}
ASSERT (HiiPackageList != NULL);
//
// Get Form package from this HII package List
//
Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
Offset2 = 0;
CopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
ClassGuidMatch = FALSE;
while (Offset < PackageListLength) {
Package = ((UINT8 *) HiiPackageList) + Offset;
CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
if (PackageHeader.Type == EFI_HII_PACKAGE_FORMS) {
//
// Search FormSet in this Form Package
//
Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
while (Offset2 < PackageHeader.Length) {
OpCodeData = Package + Offset2;
if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
//
// Try to compare against formset GUID
//
if (IsZeroGuid (FormSetGuid) ||
CompareGuid (ComparingGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER)))) {
break;
}
if (((EFI_IFR_OP_HEADER *) OpCodeData)->Length > OFFSET_OF (EFI_IFR_FORM_SET, Flags)) {
//
// Try to compare against formset class GUID
//
NumberOfClassGuid = (UINT8) (((EFI_IFR_FORM_SET *) OpCodeData)->Flags & 0x3);
ClassGuid = (EFI_GUID *) (OpCodeData + sizeof (EFI_IFR_FORM_SET));
for (Index = 0; Index < NumberOfClassGuid; Index++) {
if (CompareGuid (ComparingGuid, ClassGuid + Index)) {
ClassGuidMatch = TRUE;
break;
}
}
if (ClassGuidMatch) {
break;
}
} else if (ComparingGuid == &gEfiHiiPlatformSetupFormsetGuid) {
ClassGuidMatch = TRUE;
break;
}
}
Offset2 += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
}
if (Offset2 < PackageHeader.Length) {
//
// Target formset found
//
break;
}
}
Offset += PackageHeader.Length;
}
if (Offset >= PackageListLength) {
//
// Form package not found in this Package List
//
FreePool (HiiPackageList);
return EFI_NOT_FOUND;
}
if (FormSetGuid != NULL) {
//
// Return the FormSet GUID
//
CopyMem (FormSetGuid, &((EFI_IFR_FORM_SET *) OpCodeData)->Guid, sizeof (EFI_GUID));
}
//
// To determine the length of a whole FormSet IFR binary, one have to parse all the Opcodes
// in this FormSet; So, here just simply copy the data from start of a FormSet to the end
// of the Form Package.
//
*BinaryLength = PackageHeader.Length - Offset2;
*BinaryData = AllocateCopyPool (*BinaryLength, OpCodeData);
FreePool (HiiPackageList);
if (*BinaryData == NULL) {
return EFI_OUT_OF_RESOURCES;
}
return EFI_SUCCESS;
}
/**
Initialize the internal data structure of a FormSet.
@param Handle PackageList Handle
@param FormSetGuid On input, GUID or class GUID of a formset. If not
specified (NULL or zero GUID), take the first
FormSet with class GUID EFI_HII_PLATFORM_SETUP_FORMSET_GUID
found in package list.
On output, GUID of the formset found(if not NULL).
@param FormSet FormSet data structure.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The specified FormSet could not be found.
**/
EFI_STATUS
InitializeFormSet (
IN EFI_HII_HANDLE Handle,
IN OUT EFI_GUID *FormSetGuid,
OUT FORM_BROWSER_FORMSET *FormSet
)
{
EFI_STATUS Status;
EFI_HANDLE DriverHandle;
Status = GetIfrBinaryData (Handle, FormSetGuid, &FormSet->IfrBinaryLength, &FormSet->IfrBinaryData);
if (EFI_ERROR (Status)) {
return Status;
}
FormSet->Signature = FORM_BROWSER_FORMSET_SIGNATURE;
FormSet->HiiHandle = Handle;
CopyMem (&FormSet->Guid, FormSetGuid, sizeof (EFI_GUID));
FormSet->QuestionInited = FALSE;
//
// Retrieve ConfigAccess Protocol associated with this HiiPackageList
//
Status = mHiiDatabase->GetPackageListHandle (mHiiDatabase, Handle, &DriverHandle);
if (EFI_ERROR (Status)) {
return Status;
}
FormSet->DriverHandle = DriverHandle;
Status = gBS->HandleProtocol (
DriverHandle,
&gEfiHiiConfigAccessProtocolGuid,
(VOID **) &FormSet->ConfigAccess
);
if (EFI_ERROR (Status)) {
//
// Configuration Driver don't attach ConfigAccess protocol to its HII package
// list, then there will be no configuration action required
//
FormSet->ConfigAccess = NULL;
}
//
// Parse the IFR binary OpCodes
//
Status = ParseOpCodes (FormSet);
return Status;
}
/**
Save globals used by previous call to SendForm(). SendForm() may be called from
HiiConfigAccess.Callback(), this will cause SendForm() be reentried.
So, save globals of previous call to SendForm() and restore them upon exit.
**/
VOID
SaveBrowserContext (
VOID
)
{
BROWSER_CONTEXT *Context;
FORM_ENTRY_INFO *MenuList;
FORM_BROWSER_FORMSET *FormSet;
gBrowserContextCount++;
if (gBrowserContextCount == 1) {
//
// This is not reentry of SendForm(), no context to save
//
return;
}
Context = AllocatePool (sizeof (BROWSER_CONTEXT));
ASSERT (Context != NULL);
Context->Signature = BROWSER_CONTEXT_SIGNATURE;
//
// Save FormBrowser context
//
Context->Selection = gCurrentSelection;
Context->ResetRequired = gResetRequired;
Context->FlagReconnect = gFlagReconnect;
Context->CallbackReconnect = gCallbackReconnect;
Context->ExitRequired = gExitRequired;
Context->HiiHandle = mCurrentHiiHandle;
Context->FormId = mCurrentFormId;
CopyGuid (&Context->FormSetGuid, &mCurrentFormSetGuid);
Context->SystemLevelFormSet = mSystemLevelFormSet;
Context->CurFakeQestId = mCurFakeQestId;
Context->HiiPackageListUpdated = mHiiPackageListUpdated;
Context->FinishRetrieveCall = mFinishRetrieveCall;
//
// Save the menu history data.
//
InitializeListHead(&Context->FormHistoryList);
while (!IsListEmpty (&mPrivateData.FormBrowserEx2.FormViewHistoryHead)) {
MenuList = FORM_ENTRY_INFO_FROM_LINK (mPrivateData.FormBrowserEx2.FormViewHistoryHead.ForwardLink);
RemoveEntryList (&MenuList->Link);
InsertTailList(&Context->FormHistoryList, &MenuList->Link);
}
//
// Save formset list.
//
InitializeListHead(&Context->FormSetList);
while (!IsListEmpty (&gBrowserFormSetList)) {
FormSet = FORM_BROWSER_FORMSET_FROM_LINK (gBrowserFormSetList.ForwardLink);
RemoveEntryList (&FormSet->Link);
InsertTailList(&Context->FormSetList, &FormSet->Link);
}
//
// Insert to FormBrowser context list
//
InsertHeadList (&gBrowserContextList, &Context->Link);
}
/**
Restore globals used by previous call to SendForm().
**/
VOID
RestoreBrowserContext (
VOID
)
{
LIST_ENTRY *Link;
BROWSER_CONTEXT *Context;
FORM_ENTRY_INFO *MenuList;
FORM_BROWSER_FORMSET *FormSet;
ASSERT (gBrowserContextCount != 0);
gBrowserContextCount--;
if (gBrowserContextCount == 0) {
//
// This is not reentry of SendForm(), no context to restore
//
return;
}
ASSERT (!IsListEmpty (&gBrowserContextList));
Link = GetFirstNode (&gBrowserContextList);
Context = BROWSER_CONTEXT_FROM_LINK (Link);
//
// Restore FormBrowser context
//
gCurrentSelection = Context->Selection;
gResetRequired = Context->ResetRequired;
gFlagReconnect = Context->FlagReconnect;
gCallbackReconnect = Context->CallbackReconnect;
gExitRequired = Context->ExitRequired;
mCurrentHiiHandle = Context->HiiHandle;
mCurrentFormId = Context->FormId;
CopyGuid (&mCurrentFormSetGuid, &Context->FormSetGuid);
mSystemLevelFormSet = Context->SystemLevelFormSet;
mCurFakeQestId = Context->CurFakeQestId;
mHiiPackageListUpdated = Context->HiiPackageListUpdated;
mFinishRetrieveCall = Context->FinishRetrieveCall;
//
// Restore the menu history data.
//
while (!IsListEmpty (&Context->FormHistoryList)) {
MenuList = FORM_ENTRY_INFO_FROM_LINK (Context->FormHistoryList.ForwardLink);
RemoveEntryList (&MenuList->Link);
InsertTailList(&mPrivateData.FormBrowserEx2.FormViewHistoryHead, &MenuList->Link);
}
//
// Restore the Formset data.
//
while (!IsListEmpty (&Context->FormSetList)) {
FormSet = FORM_BROWSER_FORMSET_FROM_LINK (Context->FormSetList.ForwardLink);
RemoveEntryList (&FormSet->Link);
InsertTailList(&gBrowserFormSetList, &FormSet->Link);
}
//
// Remove from FormBrowser context list
//
RemoveEntryList (&Context->Link);
gBS->FreePool (Context);
}
/**
Find the matched FormSet context in the backup maintain list based on HiiHandle.
@param Handle The Hii Handle.
@return the found FormSet context. If no found, NULL will return.
**/
FORM_BROWSER_FORMSET *
GetFormSetFromHiiHandle (
EFI_HII_HANDLE Handle
)
{
LIST_ENTRY *Link;
FORM_BROWSER_FORMSET *FormSet;
Link = GetFirstNode (&gBrowserFormSetList);
while (!IsNull (&gBrowserFormSetList, Link)) {
FormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
Link = GetNextNode (&gBrowserFormSetList, Link);
if (!ValidateFormSet(FormSet)) {
continue;
}
if (FormSet->HiiHandle == Handle) {
return FormSet;
}
}
return NULL;
}
/**
Check whether the input HII handle is the FormSet that is being used.
@param Handle The Hii Handle.
@retval TRUE HII handle is being used.
@retval FALSE HII handle is not being used.
**/
BOOLEAN
IsHiiHandleInBrowserContext (
EFI_HII_HANDLE Handle
)
{
LIST_ENTRY *Link;
BROWSER_CONTEXT *Context;
//
// HiiHandle is Current FormSet.
//
if (mCurrentHiiHandle == Handle) {
return TRUE;
}
//
// Check whether HiiHandle is in BrowserContext.
//
Link = GetFirstNode (&gBrowserContextList);
while (!IsNull (&gBrowserContextList, Link)) {
Context = BROWSER_CONTEXT_FROM_LINK (Link);
if (Context->HiiHandle == Handle) {
//
// HiiHandle is in BrowserContext
//
return TRUE;
}
Link = GetNextNode (&gBrowserContextList, Link);
}
return FALSE;
}
/**
Perform Password check.
Passwork may be encrypted by driver that requires the specific check.
@param Form Form where Password Statement is in.
@param Statement Password statement
@param PasswordString Password string to be checked. It may be NULL.
NULL means to restore password.
"" string can be used to checked whether old password does exist.
@return Status Status of Password check.
**/
EFI_STATUS
EFIAPI
PasswordCheck (
IN FORM_DISPLAY_ENGINE_FORM *Form,
IN FORM_DISPLAY_ENGINE_STATEMENT *Statement,
IN EFI_STRING PasswordString OPTIONAL
)
{
EFI_STATUS Status;
EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
EFI_BROWSER_ACTION_REQUEST ActionRequest;
EFI_IFR_TYPE_VALUE IfrTypeValue;
FORM_BROWSER_STATEMENT *Question;
ConfigAccess = gCurrentSelection->FormSet->ConfigAccess;
Question = GetBrowserStatement(Statement);
ASSERT (Question != NULL);
if ((Question->QuestionFlags & EFI_IFR_FLAG_CALLBACK) == EFI_IFR_FLAG_CALLBACK) {
if (ConfigAccess == NULL) {
return EFI_UNSUPPORTED;
}
} else {
if (PasswordString == NULL) {
return EFI_SUCCESS;
}
//
// Check whether has preexisted password.
//
if (PasswordString[0] == 0) {
if (*((CHAR16 *) Question->BufferValue) == 0) {
return EFI_SUCCESS;
} else {
return EFI_NOT_READY;
}
}
//
// Check whether the input password is same as preexisted password.
//
if (StrnCmp (PasswordString, (CHAR16 *) Question->BufferValue, Question->StorageWidth/sizeof (CHAR16)) == 0) {
return EFI_SUCCESS;
} else {
return EFI_NOT_READY;
}
}
//
// Prepare password string in HII database
//
if (PasswordString != NULL) {
IfrTypeValue.string = NewString (PasswordString, gCurrentSelection->FormSet->HiiHandle);
} else {
IfrTypeValue.string = 0;
}
//
// Send password to Configuration Driver for validation
//
Status = ConfigAccess->Callback (
ConfigAccess,
EFI_BROWSER_ACTION_CHANGING,
Question->QuestionId,
Question->HiiValue.Type,
&IfrTypeValue,
&ActionRequest
);
//
// Remove password string from HII database
//
if (PasswordString != NULL) {
DeleteString (IfrTypeValue.string, gCurrentSelection->FormSet->HiiHandle);
}
return Status;
}
/**
Find the registered HotKey based on KeyData.
@param[in] KeyData A pointer to a buffer that describes the keystroke
information for the hot key.
@return The registered HotKey context. If no found, NULL will return.
**/
BROWSER_HOT_KEY *
GetHotKeyFromRegisterList (
IN EFI_INPUT_KEY *KeyData
)
{
LIST_ENTRY *Link;
BROWSER_HOT_KEY *HotKey;
Link = GetFirstNode (&gBrowserHotKeyList);
while (!IsNull (&gBrowserHotKeyList, Link)) {
HotKey = BROWSER_HOT_KEY_FROM_LINK (Link);
if (HotKey->KeyData->ScanCode == KeyData->ScanCode) {
return HotKey;
}
Link = GetNextNode (&gBrowserHotKeyList, Link);
}
return NULL;
}
/**
Configure what scope the hot key will impact.
All hot keys have the same scope. The mixed hot keys with the different level are not supported.
If no scope is set, the default scope will be FormSet level.
After all registered hot keys are removed, previous Scope can reset to another level.
@param[in] Scope Scope level to be set.
@retval EFI_SUCCESS Scope is set correctly.
@retval EFI_INVALID_PARAMETER Scope is not the valid value specified in BROWSER_SETTING_SCOPE.
@retval EFI_UNSPPORTED Scope level is different from current one that the registered hot keys have.
**/
EFI_STATUS
EFIAPI
SetScope (
IN BROWSER_SETTING_SCOPE Scope
)
{
if (Scope >= MaxLevel) {
return EFI_INVALID_PARAMETER;
}
//
// When no hot key registered in system or on the first setting,
// Scope can be set.
//
if (mBrowserScopeFirstSet || IsListEmpty (&gBrowserHotKeyList)) {
gBrowserSettingScope = Scope;
mBrowserScopeFirstSet = FALSE;
} else if (Scope != gBrowserSettingScope) {
return EFI_UNSUPPORTED;
}
return EFI_SUCCESS;
}
/**
Register the hot key with its browser action, or unregistered the hot key.
Only support hot key that is not printable character (control key, function key, etc.).
If the action value is zero, the hot key will be unregistered if it has been registered.
If the same hot key has been registered, the new action and help string will override the previous ones.
@param[in] KeyData A pointer to a buffer that describes the keystroke
information for the hot key. Its type is EFI_INPUT_KEY to
be supported by all ConsoleIn devices.
@param[in] Action Action value that describes what action will be trigged when the hot key is pressed.
@param[in] DefaultId Specifies the type of defaults to retrieve, which is only for DEFAULT action.
@param[in] HelpString Help string that describes the hot key information.
Its value may be NULL for the unregistered hot key.
@retval EFI_SUCCESS Hot key is registered or unregistered.
@retval EFI_INVALID_PARAMETER KeyData is NULL or HelpString is NULL on register.
@retval EFI_NOT_FOUND KeyData is not found to be unregistered.
@retval EFI_UNSUPPORTED Key represents a printable character. It is conflicted with Browser.
@retval EFI_ALREADY_STARTED Key already been registered for one hot key.
**/
EFI_STATUS
EFIAPI
RegisterHotKey (
IN EFI_INPUT_KEY *KeyData,
IN UINT32 Action,
IN UINT16 DefaultId,
IN EFI_STRING HelpString OPTIONAL
)
{
BROWSER_HOT_KEY *HotKey;
//
// Check input parameters.
//
if (KeyData == NULL || KeyData->UnicodeChar != CHAR_NULL ||
(Action != BROWSER_ACTION_UNREGISTER && HelpString == NULL)) {
return EFI_INVALID_PARAMETER;
}
//
// Check whether the input KeyData is in BrowserHotKeyList.
//
HotKey = GetHotKeyFromRegisterList (KeyData);
//
// Unregister HotKey
//
if (Action == BROWSER_ACTION_UNREGISTER) {
if (HotKey != NULL) {
//
// The registered HotKey is found.
// Remove it from List, and free its resource.
//
RemoveEntryList (&HotKey->Link);
FreePool (HotKey->KeyData);
FreePool (HotKey->HelpString);
return EFI_SUCCESS;
} else {
//
// The registered HotKey is not found.
//
return EFI_NOT_FOUND;
}
}
if (HotKey != NULL) {
return EFI_ALREADY_STARTED;
}
//
// Create new Key, and add it into List.
//
HotKey = AllocateZeroPool (sizeof (BROWSER_HOT_KEY));
ASSERT (HotKey != NULL);
HotKey->Signature = BROWSER_HOT_KEY_SIGNATURE;
HotKey->KeyData = AllocateCopyPool (sizeof (EFI_INPUT_KEY), KeyData);
InsertTailList (&gBrowserHotKeyList, &HotKey->Link);
//
// Fill HotKey information.
//
HotKey->Action = Action;
HotKey->DefaultId = DefaultId;
if (HotKey->HelpString != NULL) {
FreePool (HotKey->HelpString);
}
HotKey->HelpString = AllocateCopyPool (StrSize (HelpString), HelpString);
return EFI_SUCCESS;
}
/**
Register Exit handler function.
When more than one handler function is registered, the latter one will override the previous one.
When NULL handler is specified, the previous Exit handler will be unregistered.
@param[in] Handler Pointer to handler function.
**/
VOID
EFIAPI
RegiserExitHandler (
IN EXIT_HANDLER Handler
)
{
ExitHandlerFunction = Handler;
return;
}
/**
Check whether the browser data has been modified.
@retval TRUE Browser data is modified.
@retval FALSE No browser data is modified.
**/
BOOLEAN
EFIAPI
IsBrowserDataModified (
VOID
)
{
LIST_ENTRY *Link;
FORM_BROWSER_FORMSET *FormSet;
switch (gBrowserSettingScope) {
case FormLevel:
if (gCurrentSelection == NULL) {
return FALSE;
}
return IsNvUpdateRequiredForForm (gCurrentSelection->Form);
case FormSetLevel:
if (gCurrentSelection == NULL) {
return FALSE;
}
return IsNvUpdateRequiredForFormSet (gCurrentSelection->FormSet);
case SystemLevel:
Link = GetFirstNode (&gBrowserFormSetList);
while (!IsNull (&gBrowserFormSetList, Link)) {
FormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
if (!ValidateFormSet(FormSet)) {
continue;
}
if (IsNvUpdateRequiredForFormSet (FormSet)) {
return TRUE;
}
Link = GetNextNode (&gBrowserFormSetList, Link);
}
return FALSE;
default:
return FALSE;
}
}
/**
Execute the action requested by the Action parameter.
@param[in] Action Execute the request action.
@param[in] DefaultId The default Id info when need to load default value. Only used when Action is BROWSER_ACTION_DEFAULT.
@retval EFI_SUCCESS Execute the request action succss.
@retval EFI_INVALID_PARAMETER The input action value is invalid.
**/
EFI_STATUS
EFIAPI
ExecuteAction (
IN UINT32 Action,
IN UINT16 DefaultId
)
{
EFI_STATUS Status;
FORM_BROWSER_FORMSET *FormSet;
FORM_BROWSER_FORM *Form;
if (gBrowserSettingScope < SystemLevel && gCurrentSelection == NULL) {
return EFI_NOT_READY;
}
Status = EFI_SUCCESS;
FormSet = NULL;
Form = NULL;
if (gBrowserSettingScope < SystemLevel) {
FormSet = gCurrentSelection->FormSet;
Form = gCurrentSelection->Form;
}
//
// Executet the discard action.
//
if ((Action & BROWSER_ACTION_DISCARD) != 0) {
Status = DiscardForm (FormSet, Form, gBrowserSettingScope);
if (EFI_ERROR (Status)) {
return Status;
}
}
//
// Executet the difault action.
//
if ((Action & BROWSER_ACTION_DEFAULT) != 0) {
Status = ExtractDefault (FormSet, Form, DefaultId, gBrowserSettingScope, GetDefaultForAll, NULL, FALSE, FALSE);
if (EFI_ERROR (Status)) {
return Status;
}
UpdateStatementStatus (FormSet, Form, gBrowserSettingScope);
}
//
// Executet the submit action.
//
if ((Action & BROWSER_ACTION_SUBMIT) != 0) {
Status = SubmitForm (FormSet, Form, gBrowserSettingScope);
if (EFI_ERROR (Status)) {
return Status;
}
}
//
// Executet the reset action.
//
if ((Action & BROWSER_ACTION_RESET) != 0) {
gResetRequired = TRUE;
}
//
// Executet the exit action.
//
if ((Action & BROWSER_ACTION_EXIT) != 0) {
DiscardForm (FormSet, Form, gBrowserSettingScope);
if (gBrowserSettingScope == SystemLevel) {
if (ExitHandlerFunction != NULL) {
ExitHandlerFunction ();
}
}
gExitRequired = TRUE;
}
return Status;
}
/**
Create reminder to let user to choose save or discard the changed browser data.
Caller can use it to actively check the changed browser data.
@retval BROWSER_NO_CHANGES No browser data is changed.
@retval BROWSER_SAVE_CHANGES The changed browser data is saved.
@retval BROWSER_DISCARD_CHANGES The changed browser data is discard.
@retval BROWSER_KEEP_CURRENT Browser keep current changes.
**/
UINT32
EFIAPI
SaveReminder (
VOID
)
{
LIST_ENTRY *Link;
FORM_BROWSER_FORMSET *FormSet;
BOOLEAN IsDataChanged;
UINT32 DataSavedAction;
UINT32 ConfirmRet;
DataSavedAction = BROWSER_NO_CHANGES;
IsDataChanged = FALSE;
Link = GetFirstNode (&gBrowserFormSetList);
while (!IsNull (&gBrowserFormSetList, Link)) {
FormSet = FORM_BROWSER_FORMSET_FROM_LINK (Link);
Link = GetNextNode (&gBrowserFormSetList, Link);
if (!ValidateFormSet(FormSet)) {
continue;
}
if (IsNvUpdateRequiredForFormSet (FormSet)) {
IsDataChanged = TRUE;
break;
}
}
//
// No data is changed. No save is required.
//
if (!IsDataChanged) {
return DataSavedAction;
}
//
// If data is changed, prompt user to save or discard it.
//
do {
ConfirmRet = (UINT32) mFormDisplay->ConfirmDataChange();
if (ConfirmRet == BROWSER_ACTION_SUBMIT) {
SubmitForm (NULL, NULL, SystemLevel);
DataSavedAction = BROWSER_SAVE_CHANGES;
break;
} else if (ConfirmRet == BROWSER_ACTION_DISCARD) {
DiscardForm (NULL, NULL, SystemLevel);
DataSavedAction = BROWSER_DISCARD_CHANGES;
break;
} else if (ConfirmRet == BROWSER_ACTION_NONE) {
DataSavedAction = BROWSER_KEEP_CURRENT;
break;
}
} while (1);
return DataSavedAction;
}
/**
Check whether the Reset Required for the browser
@retval TRUE Browser required to reset after exit.
@retval FALSE Browser not need to reset after exit.
**/
BOOLEAN
EFIAPI
IsResetRequired (
VOID
)
{
return gResetRequired;
}
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