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Add support for EFI_IFR_QUESTION_REF3 opcode for browser when this opcode has the device path info.

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

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12759 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ydong10
2011-11-22 07:46:35 +00:00
parent 736d06b8ec
commit db40504eae
3 changed files with 202 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

200
MdeModulePkg/Universal/SetupBrowserDxe/Expression.c
View File

@@ -522,7 +522,7 @@ IdToQuestion2 (
LIST_ENTRY *Link;
FORM_BROWSER_STATEMENT *Question;
if (QuestionId == 0) {
if (QuestionId == 0 || Form == NULL) {
//
// The value of zero is reserved
//
@@ -757,6 +757,7 @@ IfrToString (
// so need 1 byte to align, also need 2 bytes for L'\0'.
//
TmpBuf = AllocateZeroPool (Value.BufferLen + 3);
ASSERT (TmpBuf != NULL);
if (Format == EFI_IFR_STRING_ASCII) {
CopyMem (TmpBuf, Value.Buffer, Value.BufferLen);
PrintFormat = L"%a";
@@ -1651,6 +1652,151 @@ CheckUserPrivilege (
return FALSE;
}
/**
Get question value from the predefined formset.
@param DevicePath The driver's device path which produece the formset data.
@param InputHiiHandle The hii handle associate with the formset data.
@param FormSetGuid The formset guid which include the question.
@param QuestionId The question id which need to get value from.
@param Value The return data about question's value.
@retval TRUE Get the question value success.
@retval FALSE Get the question value failed.
**/
BOOLEAN
GetQuestionValueFromForm (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
IN EFI_HII_HANDLE InputHiiHandle,
IN EFI_GUID *FormSetGuid,
IN EFI_QUESTION_ID QuestionId,
OUT EFI_HII_VALUE *Value
)
{
EFI_STATUS Status;
EFI_HANDLE DriverHandle;
EFI_HANDLE Handle;
EFI_HII_HANDLE *HiiHandles;
EFI_HII_HANDLE HiiHandle;
UINTN Index;
FORM_BROWSER_STATEMENT *Question;
FORM_BROWSER_FORMSET *FormSet;
FORM_BROWSER_FORM *Form;
BOOLEAN GetTheVal;
LIST_ENTRY *Link;
//
// The input parameter DevicePath or InputHiiHandle must have one valid input.
//
ASSERT ((DevicePath != NULL && InputHiiHandle == NULL) ||
(DevicePath == NULL && InputHiiHandle != NULL) );
GetTheVal = TRUE;
DriverHandle = NULL;
HiiHandle = NULL;
Question = NULL;
Form = NULL;
//
// Get HiiHandle.
//
if (DevicePath != NULL) {
//
// 1. Get Driver handle.
//
Status = gBS->LocateDevicePath (
&gEfiDevicePathProtocolGuid,
&DevicePath,
&DriverHandle
);
if (EFI_ERROR (Status) || (DriverHandle == NULL)) {
return FALSE;
}
//
// 2. Get Hii handle
//
HiiHandles = HiiGetHiiHandles (NULL);
if (HiiHandles == NULL) {
return FALSE;
}
for (Index = 0; HiiHandles[Index] != NULL; Index++) {
Status = mHiiDatabase->GetPackageListHandle (
mHiiDatabase,
HiiHandles[Index],
&Handle
);
if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {
HiiHandle = HiiHandles[Index];
break;
}
}
FreePool (HiiHandles);
} else {
HiiHandle = InputHiiHandle;
}
ASSERT (HiiHandle != NULL);
//
// Get the formset data include this question.
//
FormSet = AllocateZeroPool (sizeof (FORM_BROWSER_FORMSET));
ASSERT (FormSet != NULL);
Status = InitializeFormSet(HiiHandle, FormSetGuid, FormSet, FALSE);
if (EFI_ERROR (Status)) {
GetTheVal = FALSE;
goto Done;
}
//
// Base on the Question Id to get the question info.
//
Question = IdToQuestion(FormSet, NULL, QuestionId);
if (Question == NULL) {
GetTheVal = FALSE;
goto Done;
}
//
// Search form in the formset scope
//
Link = GetFirstNode (&FormSet->FormListHead);
while (!IsNull (&FormSet->FormListHead, Link)) {
Form = FORM_BROWSER_FORM_FROM_LINK (Link);
Question = IdToQuestion2 (Form, QuestionId);
if (Question != NULL) {
break;
}
Link = GetNextNode (&FormSet->FormListHead, Link);
Form = NULL;
}
ASSERT (Form != NULL);
//
// Get the question value.
//
Status = GetQuestionValue(FormSet, Form, Question, FALSE);
if (EFI_ERROR (Status)) {
GetTheVal = FALSE;
goto Done;
}
CopyMem (Value, &Question->HiiValue, sizeof (EFI_HII_VALUE));
Done:
//
// Clean the formset structure and restore the global parameter.
//
if (FormSet != NULL) {
DestroyFormSet (FormSet);
}
return GetTheVal;
}
/**
Evaluate the result of a HII expression.
@@ -1699,6 +1845,7 @@ EvaluateExpression (
UINT8 DigitUint8;
UINT8 *TempBuffer;
EFI_TIME EfiTime;
EFI_HII_VALUE QuestionVal;
//
// Save current stack offset.
@@ -1931,24 +2078,42 @@ EvaluateExpression (
break;
case EFI_IFR_QUESTION_REF3_OP:
if (OpCode->DevicePath == 0) {
//
// EFI_IFR_QUESTION_REF3
// Pop an expression from the expression stack
//
Status = PopExpression (Value);
if (EFI_ERROR (Status)) {
goto Done;
}
//
// EFI_IFR_QUESTION_REF3
// Pop an expression from the expression stack
//
Status = PopExpression (Value);
if (EFI_ERROR (Status)) {
goto Done;
}
//
// Validate the expression value
//
if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
Status = EFI_NOT_FOUND;
goto Done;
}
//
// Validate the expression value
//
if ((Value->Type > EFI_IFR_TYPE_NUM_SIZE_64) || (Value->Value.u64 > 0xffff)) {
if (OpCode->DevicePath != 0) {
StrPtr = GetToken (OpCode->DevicePath, FormSet->HiiHandle);
if (StrPtr == NULL) {
Status = EFI_NOT_FOUND;
goto Done;
}
if (!GetQuestionValueFromForm((EFI_DEVICE_PATH_PROTOCOL*)StrPtr, NULL, &OpCode->Guid, Value->Value.u16, &QuestionVal)){
Status = EFI_NOT_FOUND;
goto Done;
}
Value = &QuestionVal;
} else if (CompareGuid (&OpCode->Guid, &gZeroGuid) != 0) {
if (!GetQuestionValueFromForm(NULL, FormSet->HiiHandle, &OpCode->Guid, Value->Value.u16, &QuestionVal)){
Status = EFI_NOT_FOUND;
goto Done;
}
Value = &QuestionVal;
} else {
Question = IdToQuestion (FormSet, Form, Value->Value.u16);
if (Question == NULL) {
Status = EFI_NOT_FOUND;
@@ -1959,13 +2124,6 @@ EvaluateExpression (
// push the questions' value on to the expression stack
//
Value = &Question->HiiValue;
} else {
//
// BUGBUG: push 0 for EFI_IFR_QUESTION_REF3_2 and EFI_IFR_QUESTION_REF3_3,
// since it is impractical to evaluate the value of a Question in another
// Hii Package list.
//
ZeroMem (Value, sizeof (EFI_HII_VALUE));
}
break;