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Add two new methods to get default value, also add sample code in sample driver. 

Add sample code to use time opcode

Signed-off-by:  ydong10
Reviewed-by: lgao4


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11688 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ydong10 2011-05-20 02:58:35 +00:00
parent d4cb06e122
commit ee31d1be52
7 changed files with 613 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

306
MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c
View File

@ -334,6 +334,277 @@ LoadNameValueNames (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET
or WIDTH or VALUE.
<BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>
This is a internal function.
@param StringPtr String in <BlockConfig> format and points to the
first character of <Number>.
@param Number The output value. Caller takes the responsibility
to free memory.
@param Len Length of the <Number>, in characters.
@retval EFI_OUT_OF_RESOURCES Insufficient resources to store neccessary
structures.
@retval EFI_SUCCESS Value of <Number> is outputted in Number
successfully.
**/
EFI_STATUS
GetValueOfNumber (
IN EFI_STRING StringPtr,
OUT UINT8 **Number,
OUT UINTN *Len
)
{
EFI_STRING TmpPtr;
UINTN Length;
EFI_STRING Str;
UINT8 *Buf;
EFI_STATUS Status;
UINT8 DigitUint8;
UINTN Index;
CHAR16 TemStr[2];
if (StringPtr == NULL || *StringPtr == L'\0' || Number == NULL || Len == NULL) {
return EFI_INVALID_PARAMETER;
}
Buf = NULL;
TmpPtr = StringPtr;
while (*StringPtr != L'\0' && *StringPtr != L'&') {
StringPtr++;
}
*Len = StringPtr - TmpPtr;
Length = *Len + 1;
Str = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));
if (Str == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));
*(Str + *Len) = L'\0';
Length = (Length + 1) / 2;
Buf = (UINT8 *) AllocateZeroPool (Length);
if (Buf == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
Length = *Len;
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0; Index < Length; Index ++) {
TemStr[0] = Str[Length - Index - 1];
DigitUint8 = (UINT8) StrHexToUint64 (TemStr);
if ((Index & 1) == 0) {
Buf [Index/2] = DigitUint8;
} else {
Buf [Index/2] = (UINT8) ((DigitUint8 << 4) + Buf [Index/2]);
}
}
*Number = Buf;
Status = EFI_SUCCESS;
Exit:
if (Str != NULL) {
FreePool (Str);
}
return Status;
}
/**
Create altcfg string.
@param Result The request result string.
@param ConfigHdr The request head info. <ConfigHdr> format.
@param Offset The offset of the parameter int he structure.
@param Width The width of the parameter.
@retval The string with altcfg info append at the end.
**/
EFI_STRING
CreateAltCfgString (
IN EFI_STRING Result,
IN EFI_STRING ConfigHdr,
IN UINTN Offset,
IN UINTN Width
)
{
EFI_STRING StringPtr;
EFI_STRING TmpStr;
UINTN NewLen;
NewLen = (((1 + StrLen (ConfigHdr) + 8 + 4) + (8 + 4 + 7 + 4 + 7 + 4)) * 2 + StrLen (Result)) * sizeof (CHAR16);
StringPtr = AllocateZeroPool (NewLen);
if (StringPtr == NULL) {
return NULL;
}
TmpStr = StringPtr;
if (Result != NULL) {
StrCpy (StringPtr, Result);
StringPtr += StrLen (Result);
FreePool (Result);
}
UnicodeSPrint (
StringPtr,
(1 + StrLen (ConfigHdr) + 8 + 4 + 1) * sizeof (CHAR16),
L"&%s&ALTCFG=%04x",
ConfigHdr,
EFI_HII_DEFAULT_CLASS_STANDARD
);
StringPtr += StrLen (StringPtr);
UnicodeSPrint (
StringPtr,
(8 + 4 + 7 + 4 + 7 + 4 + 1) * sizeof (CHAR16),
L"&OFFSET=%04x&WIDTH=%04x&VALUE=%04x",
Offset,
Width,
DEFAULT_CLASS_STANDARD_VALUE
);
StringPtr += StrLen (StringPtr);
UnicodeSPrint (
StringPtr,
(1 + StrLen (ConfigHdr) + 8 + 4 + 1) * sizeof (CHAR16),
L"&%s&ALTCFG=%04x",
ConfigHdr,
EFI_HII_DEFAULT_CLASS_MANUFACTURING
);
StringPtr += StrLen (StringPtr);
UnicodeSPrint (
StringPtr,
(8 + 4 + 7 + 4 + 7 + 4 + 1) * sizeof (CHAR16),
L"&OFFSET=%04x&WIDTH=%04x&VALUE=%04x",
Offset,
Width,
DEFAULT_CLASS_MANUFACTURING_VALUE
);
StringPtr += StrLen (StringPtr);
return TmpStr;
}
/**
Check whether need to add the altcfg string. if need to add, add the altcfg
string.
@param RequestResult The request result string.
@param ConfigRequestHdr The request head info. <ConfigHdr> format.
**/
VOID
AppendAltCfgString (
IN OUT EFI_STRING *RequestResult,
IN EFI_STRING ConfigRequestHdr
)
{
EFI_STRING StringPtr;
EFI_STRING TmpPtr;
UINTN Length;
UINT8 *TmpBuffer;
UINTN Offset;
UINTN Width;
UINTN BlockSize;
UINTN ValueOffset;
UINTN ValueWidth;
EFI_STATUS Status;
StringPtr = *RequestResult;
StringPtr = StrStr (StringPtr, L"OFFSET");
BlockSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
ValueOffset = OFFSET_OF (DRIVER_SAMPLE_CONFIGURATION, GetDefaultValueFromAccess);
ValueWidth = sizeof (((DRIVER_SAMPLE_CONFIGURATION *)0)->GetDefaultValueFromAccess);
if (StringPtr == NULL) {
return;
}
while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {
//
// Back up the header of one <BlockName>
//
TmpPtr = StringPtr;
StringPtr += StrLen (L"OFFSET=");
//
// Get Offset
//
Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
if (EFI_ERROR (Status)) {
return;
}
Offset = 0;
CopyMem (
&Offset,
TmpBuffer,
(((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)
);
FreePool (TmpBuffer);
StringPtr += Length;
if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {
return;
}
StringPtr += StrLen (L"&WIDTH=");
//
// Get Width
//
Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
if (EFI_ERROR (Status)) {
return;
}
Width = 0;
CopyMem (
&Width,
TmpBuffer,
(((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)
);
FreePool (TmpBuffer);
StringPtr += Length;
if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {
return;
}
StringPtr += StrLen (L"&VALUE=");
//
// Get Width
//
Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
if (EFI_ERROR (Status)) {
return;
}
StringPtr += Length;
//
// Calculate Value and convert it to hex string.
//
if (Offset + Width > BlockSize) {
return;
}
if (Offset <= ValueOffset && Offset + Width >= ValueOffset + ValueWidth) {
*RequestResult = CreateAltCfgString(*RequestResult, ConfigRequestHdr, Offset, Width);
return;
}
}
}
/** /**
This function allows a caller to extract the current configuration for one This function allows a caller to extract the current configuration for one
or more named elements from the target driver. or more named elements from the target driver.
@ -429,6 +700,7 @@ ExtractConfig (
AllocatedRequest = TRUE; AllocatedRequest = TRUE;
UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize); UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize);
FreePool (ConfigRequestHdr); FreePool (ConfigRequestHdr);
ConfigRequestHdr = NULL;
} else { } else {
// //
// Check routing data in <ConfigHdr>. // Check routing data in <ConfigHdr>.
@ -557,6 +829,8 @@ ExtractConfig (
Results, Results,
Progress Progress
); );
ConfigRequestHdr = HiiConstructConfigHdr (&mFormSetGuid, VariableName, PrivateData->DriverHandle[0]);
AppendAltCfgString(Results, ConfigRequestHdr);
} }
// //
@ -565,6 +839,10 @@ ExtractConfig (
if (AllocatedRequest) { if (AllocatedRequest) {
FreePool (ConfigRequest); FreePool (ConfigRequest);
} }
if (ConfigRequestHdr != NULL) {
FreePool (ConfigRequestHdr);
}
// //
// Set Progress string to the original request string. // Set Progress string to the original request string.
// //
@ -939,6 +1217,34 @@ DriverCallback (
} }
break; break;
case EFI_BROWSER_ACTION_DEFAULT_STANDARD:
{
switch (QuestionId) {
case 0x1240:
Value->u8 = DEFAULT_CLASS_STANDARD_VALUE;
break;
default:
Status = EFI_UNSUPPORTED;
break;
}
}
break;
case EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING:
{
switch (QuestionId) {
case 0x1240:
Value->u8 = DEFAULT_CLASS_MANUFACTURING_VALUE;
break;
default:
Status = EFI_UNSUPPORTED;
break;
}
}
break;
case EFI_BROWSER_ACTION_CHANGING: case EFI_BROWSER_ACTION_CHANGING:
{ {
switch (QuestionId) { switch (QuestionId) {

3
MdeModulePkg/Universal/DriverSampleDxe/DriverSample.h
View File

@ -65,6 +65,9 @@ extern UINT8 DriverSampleStrings[];
#define DYNAMIC_ONE_OF_VAR_OFFSET OFFSET_OF (DRIVER_SAMPLE_CONFIGURATION, DynamicOneof) #define DYNAMIC_ONE_OF_VAR_OFFSET OFFSET_OF (DRIVER_SAMPLE_CONFIGURATION, DynamicOneof)
#define DYNAMIC_ORDERED_LIST_VAR_OFFSET OFFSET_OF (DRIVER_SAMPLE_CONFIGURATION, DynamicOrderedList) #define DYNAMIC_ORDERED_LIST_VAR_OFFSET OFFSET_OF (DRIVER_SAMPLE_CONFIGURATION, DynamicOrderedList)
#define DEFAULT_CLASS_MANUFACTURING_VALUE 0xFF
#define DEFAULT_CLASS_STANDARD_VALUE 0x0
// //
// Number of name in Name/Value storage // Number of name in Name/Value storage
// //

3
MdeModulePkg/Universal/DriverSampleDxe/NVDataStruc.h
View File

@ -74,6 +74,9 @@ typedef struct {
UINT8 SerialPortStatus; UINT8 SerialPortStatus;
UINT16 SerialPortIo; UINT16 SerialPortIo;
UINT8 SerialPortIrq; UINT8 SerialPortIrq;
UINT8 GetDefaultValueFromCallBack;
UINT8 GetDefaultValueFromAccess;
EFI_HII_TIME Time;
} DRIVER_SAMPLE_CONFIGURATION; } DRIVER_SAMPLE_CONFIGURATION;
// //

33
MdeModulePkg/Universal/DriverSampleDxe/Vfr.vfr
View File

@ -385,6 +385,28 @@ formset
endnumeric; endnumeric;
endif; endif;
numeric varid = MyIfrNVData.GetDefaultValueFromAccess,
questionid = 0x1239,
prompt = STRING_TOKEN(STR_DEFAULT_VALUE_FROM_ACCESS_PROMPT),
help = STRING_TOKEN(STR_DEFAULT_VALUE_FROM_ACCESS_HELP),
flags = DISPLAY_UINT_HEX | INTERACTIVE,
minimum = 0,
maximum = 255,
step = 1,
default = 18,
endnumeric;
numeric varid = MyIfrNVData.GetDefaultValueFromCallBack,
questionid = 0x1240,
prompt = STRING_TOKEN(STR_DEFAULT_VALUE_FROM_CALLBACK_PROMPT),
help = STRING_TOKEN(STR_DEFAULT_VALUE_FROM_CALLBACK_HELP),
flags = DISPLAY_UINT_HEX | INTERACTIVE,
minimum = 0,
maximum = 255,
step = 1,
default = 18,
endnumeric;
resetbutton resetbutton
defaultstore = MyStandardDefault, defaultstore = MyStandardDefault,
@ -533,7 +555,16 @@ formset
default = 0, default = 0,
endtime; endtime;
time
name = MyTime,
varid = MyIfrNVData.Time,
prompt = STRING_TOKEN(STR_TIME_PROMPT),
help = STRING_TOKEN(STR_TIME_PROMPT),
flags = STORAGE_NORMAL,
default = 15:33:33,
endtime;
checkbox varid = MyIfrNVData.ChooseToActivateNuclearWeaponry, checkbox varid = MyIfrNVData.ChooseToActivateNuclearWeaponry,
prompt = STRING_TOKEN(STR_CHECK_BOX_PROMPT), prompt = STRING_TOKEN(STR_CHECK_BOX_PROMPT),
help = STRING_TOKEN(STR_CHECK_BOX_HELP), help = STRING_TOKEN(STR_CHECK_BOX_HELP),

BIN
MdeModulePkg/Universal/DriverSampleDxe/VfrStrings.uni
View File

Binary file not shown.

15
MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
View File

@ -1027,6 +1027,11 @@ SetupBrowser (
default: default:
break; break;
} }
} else if (Status == EFI_UNSUPPORTED) {
//
// If return EFI_UNSUPPORTED, also consider Hii driver suceess deal with it.
//
Status = EFI_SUCCESS;
} }
} }
if (SubmitFormIsRequired) { if (SubmitFormIsRequired) {
@ -1151,6 +1156,11 @@ SetupBrowser (
Selection->FormId = Selection->Form->FormId; Selection->FormId = Selection->Form->FormId;
Selection->QuestionId = 0; Selection->QuestionId = 0;
} }
} else {
//
// If return EFI_UNSUPPORTED, also consider Hii driver suceess deal with it.
//
Status = EFI_SUCCESS;
} }
} }
@ -1216,6 +1226,11 @@ SetupBrowser (
default: default:
break; break;
} }
} else if (Status == EFI_UNSUPPORTED) {
//
// If return EFI_UNSUPPORTED, also consider Hii driver suceess deal with it.
//
Status = EFI_SUCCESS;
} }
} }
if (SubmitFormIsRequired) { if (SubmitFormIsRequired) {

258
MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
View File

@ -1804,6 +1804,221 @@ SubmitForm (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Get Question default value from AltCfg string.
@param FormSet The form set.
@param Question The question.
@param DefaultId The default Id.
@retval EFI_SUCCESS Question is reset to default value.
**/
EFI_STATUS
GetDefaultValueFromAltCfg (
IN FORM_BROWSER_FORMSET *FormSet,
IN OUT FORM_BROWSER_STATEMENT *Question,
IN UINT16 DefaultId
)
{
BOOLEAN IsBufferStorage;
BOOLEAN IsString;
UINTN Length;
FORMSET_STORAGE *Storage;
CHAR16 *ConfigRequest;
CHAR16 *Progress;
CHAR16 *Result;
CHAR16 *ConfigResp;
CHAR16 *Value;
CHAR16 *StringPtr;
UINTN LengthStr;
UINT8 *Dst;
CHAR16 TemStr[5];
UINTN Index;
UINT8 DigitUint8;
EFI_STATUS Status;
Status = EFI_NOT_FOUND;
Length = 0;
Dst = NULL;
ConfigRequest = NULL;
Result = NULL;
ConfigResp = NULL;
Storage = Question->Storage;
if ((Storage == NULL) || (Storage->Type == EFI_HII_VARSTORE_EFI_VARIABLE)) {
return Status;
}
//
// 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;
}
IsBufferStorage = (BOOLEAN) ((Storage->Type == EFI_HII_VARSTORE_BUFFER) ? TRUE : FALSE);
IsString = (BOOLEAN) ((Question->HiiValue.Type == EFI_IFR_TYPE_STRING) ? TRUE : FALSE);
//
// <ConfigRequest> ::= <ConfigHdr> + <BlockName> ||
// <ConfigHdr> + "&" + <VariableName>
//
if (IsBufferStorage) {
Length = StrLen (Storage->ConfigHdr);
Length += StrLen (Question->BlockName);
} else {
Length = StrLen (Storage->ConfigHdr);
Length += StrLen (Question->VariableName) + 1;
}
ConfigRequest = AllocateZeroPool ((Length + 1) * sizeof (CHAR16));
ASSERT (ConfigRequest != NULL);
StrCpy (ConfigRequest, Storage->ConfigHdr);
if (IsBufferStorage) {
StrCat (ConfigRequest, Question->BlockName);
} else {
StrCat (ConfigRequest, L"&");
StrCat (ConfigRequest, Question->VariableName);
}
Status = FormSet->ConfigAccess->ExtractConfig (
FormSet->ConfigAccess,
ConfigRequest,
&Progress,
&Result
);
if (EFI_ERROR (Status)) {
goto Done;
}
//
// 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
);
//
// The required setting can't be found. So, it is not required to be validated and set.
//
if (EFI_ERROR (Status)) {
goto Done;
}
//
// Skip <ConfigRequest>
//
Value = StrStr (ConfigResp, L"&VALUE");
if (IsBufferStorage) {
//
// Skip "&VALUE"
//
Value = Value + 6;
}
if (*Value != '=') {
Status = EFI_NOT_FOUND;
goto Done;
}
//
// Skip '=', point to value
//
Value = Value + 1;
//
// Suppress <AltResp> if any
//
StringPtr = Value;
while (*StringPtr != L'\0' && *StringPtr != L'&') {
StringPtr++;
}
*StringPtr = L'\0';
LengthStr = StrLen (Value);
if (!IsBufferStorage && IsString) {
StringPtr = (CHAR16 *) Dst;
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0; Index < LengthStr; Index += 4) {
StrnCpy (TemStr, Value + Index, 4);
StringPtr[Index/4] = (CHAR16) StrHexToUint64 (TemStr);
}
//
// Add tailing L'\0' character
//
StringPtr[Index/4] = L'\0';
} else {
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0; Index < LengthStr; 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]);
}
}
}
Done:
if (ConfigRequest != NULL){
FreePool (ConfigRequest);
}
if (ConfigResp != NULL) {
FreePool (ConfigResp);
}
if (Result != NULL) {
FreePool (Result);
}
return Status;
}
/**
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;
}
}
/** /**
Reset Question to its default value. Reset Question to its default value.
@ -1831,6 +2046,9 @@ GetQuestionDefault (
EFI_HII_VALUE *HiiValue; EFI_HII_VALUE *HiiValue;
UINT8 Index; UINT8 Index;
EFI_STRING StrValue; EFI_STRING StrValue;
EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess;
EFI_BROWSER_ACTION_REQUEST ActionRequest;
INTN Action;
Status = EFI_SUCCESS; Status = EFI_SUCCESS;
StrValue = NULL; StrValue = NULL;
@ -1843,13 +2061,45 @@ GetQuestionDefault (
} }
// //
// There are three ways to specify default value for a Question: // There are Five ways to specify default value for a Question:
// 1, use nested EFI_IFR_DEFAULT (highest priority) // 1, use call back function (highest priority)
// 2, set flags of EFI_ONE_OF_OPTION (provide Standard and Manufacturing default) // 2, use ExtractConfig function
// 3, set flags of EFI_IFR_CHECKBOX (provide Standard and Manufacturing default) (lowest priority) // 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)
// //
HiiValue = &Question->HiiValue; HiiValue = &Question->HiiValue;
//
// 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,
&HiiValue->Value,
&ActionRequest
);
if (!EFI_ERROR (Status)) {
return Status;
}
}
//
// Get default value from altcfg string.
//
if (ConfigAccess != NULL) {
Status = GetDefaultValueFromAltCfg(FormSet, Question, DefaultId);
if (!EFI_ERROR (Status)) {
return Status;
}
}
// //
// EFI_IFR_DEFAULT has highest priority // EFI_IFR_DEFAULT has highest priority
// //