diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrForm.c')
| -rw-r--r-- | EdkCompatibilityPkg/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrForm.c | 1828 |
1 files changed, 0 insertions, 1828 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrForm.c b/EdkCompatibilityPkg/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrForm.c deleted file mode 100644 index 1452ef0035..0000000000 --- a/EdkCompatibilityPkg/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrForm.c +++ /dev/null @@ -1,1828 +0,0 @@ -/*++
-
-Copyright (c) 2007 - 2012, 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.
-
-Module Name:
-
- UefiIfrForm.c
-
-Abstract:
-
- Common Library Routines to assist handle HII elements.
-
---*/
-
-#include "UefiIfrLibrary.h"
-
-//
-// Fake <ConfigHdr>
-//
-UINT16 mFakeConfigHdr[] = L"GUID=00000000000000000000000000000000&NAME=0000&PATH=0";
-
-EFI_STATUS
-GetPackageDataFromPackageList (
- IN EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList,
- IN UINT32 PackageIndex,
- OUT UINT32 *BufferLen,
- OUT EFI_HII_PACKAGE_HEADER **Buffer
- )
-{
- UINT32 Index;
- EFI_HII_PACKAGE_HEADER *Package;
- UINT32 Offset;
- UINT32 PackageListLength;
- EFI_HII_PACKAGE_HEADER PackageHeader = {0, 0};
-
- ASSERT(HiiPackageList != NULL);
-
- if ((BufferLen == NULL) || (Buffer == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- Package = NULL;
- Index = 0;
- Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
- EfiCopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
- while (Offset < PackageListLength) {
- Package = (EFI_HII_PACKAGE_HEADER *) (((UINT8 *) HiiPackageList) + Offset);
- EfiCopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
- if (Index == PackageIndex) {
- break;
- }
- Offset += PackageHeader.Length;
- Index++;
- }
- if (Offset >= PackageListLength) {
- //
- // no package found in this Package List
- //
- return EFI_NOT_FOUND;
- }
-
- *BufferLen = PackageHeader.Length;
- *Buffer = Package;
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-UpdateFormPackageData (
- IN EFI_GUID *FormSetGuid,
- IN EFI_FORM_ID FormId,
- IN EFI_HII_PACKAGE_HEADER *Package,
- IN UINT32 PackageLength,
- IN UINT16 Label,
- IN BOOLEAN Insert,
- IN EFI_HII_UPDATE_DATA *Data,
- OUT UINT8 **TempBuffer,
- OUT UINT32 *TempBufferSize
- )
-{
- UINT8 *BufferPos;
- EFI_HII_PACKAGE_HEADER PackageHeader;
- UINT32 Offset;
- EFI_IFR_OP_HEADER *IfrOpHdr;
- BOOLEAN GetFormSet;
- BOOLEAN GetForm;
- UINT8 ExtendOpCode;
- UINT16 LabelNumber;
- BOOLEAN Updated;
-
- if ((TempBuffer == NULL) || (TempBufferSize == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- *TempBufferSize = PackageLength;
- if (Data != NULL) {
- *TempBufferSize += Data->Offset;
- }
- *TempBuffer = EfiLibAllocateZeroPool (*TempBufferSize);
- if (*TempBuffer == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- EfiCopyMem (*TempBuffer, Package, sizeof (EFI_HII_PACKAGE_HEADER));
- *TempBufferSize = sizeof (EFI_HII_PACKAGE_HEADER);
- BufferPos = *TempBuffer + sizeof (EFI_HII_PACKAGE_HEADER);
-
- EfiCopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
- IfrOpHdr = (EFI_IFR_OP_HEADER *)((UINT8 *) Package + sizeof (EFI_HII_PACKAGE_HEADER));
- Offset = sizeof (EFI_HII_PACKAGE_HEADER);
- GetFormSet = (BOOLEAN)((FormSetGuid == NULL) ? TRUE : FALSE);
- GetForm = FALSE;
- Updated = FALSE;
-
- while (!Updated && Offset < PackageHeader.Length) {
- EfiCopyMem (BufferPos, IfrOpHdr, IfrOpHdr->Length);
- BufferPos += IfrOpHdr->Length;
- *TempBufferSize += IfrOpHdr->Length;
-
- switch (IfrOpHdr->OpCode) {
- case EFI_IFR_FORM_SET_OP :
- if (FormSetGuid != NULL) {
- if (EfiCompareMem (&((EFI_IFR_FORM_SET *) IfrOpHdr)->Guid, FormSetGuid, sizeof (EFI_GUID)) == 0) {
- GetFormSet = TRUE;
- } else {
- GetFormSet = FALSE;
- }
- }
- break;
-
- case EFI_IFR_FORM_OP:
- if (EfiCompareMem (&((EFI_IFR_FORM *) IfrOpHdr)->FormId, &FormId, sizeof (EFI_FORM_ID)) == 0) {
- GetForm = TRUE;
- } else {
- GetForm = FALSE;
- }
- break;
-
- case EFI_IFR_GUID_OP :
- if (!GetFormSet || !GetForm) {
- //
- // Go to the next Op-Code
- //
- break;
- }
-
- if (!EfiCompareGuid (&((EFI_IFR_GUID *) IfrOpHdr)->Guid, &mIfrVendorGuid)) {
- //
- // GUID mismatch, skip this op-code
- //
- break;
- }
-
- ExtendOpCode = ((EFI_IFR_GUID_LABEL *) IfrOpHdr)->ExtendOpCode;
- EfiCopyMem (&LabelNumber, &((EFI_IFR_GUID_LABEL *)IfrOpHdr)->Number, sizeof (UINT16));
- if ((ExtendOpCode != EFI_IFR_EXTEND_OP_LABEL) || (LabelNumber != Label)) {
- //
- // Go to the next Op-Code
- //
- break;
- }
-
- if (Insert) {
- //
- // Insert data after current Label, skip myself
- //
- Offset += IfrOpHdr->Length;
- IfrOpHdr = (EFI_IFR_OP_HEADER *) ((CHAR8 *) (IfrOpHdr) + IfrOpHdr->Length);
- } else {
- //
- // Replace data between two paired Label, try to find the next Label.
- //
- while (TRUE) {
- Offset += IfrOpHdr->Length;
- //
- // Search the next label and Fail if not label found.
- //
- if (Offset >= PackageHeader.Length) {
- goto Fail;
- }
- IfrOpHdr = (EFI_IFR_OP_HEADER *) ((CHAR8 *) (IfrOpHdr) + IfrOpHdr->Length);
- if (IfrOpHdr->OpCode == EFI_IFR_GUID_OP) {
- ExtendOpCode = ((EFI_IFR_GUID_LABEL *) IfrOpHdr)->ExtendOpCode;
- if (EfiCompareGuid (&((EFI_IFR_GUID *) IfrOpHdr)->Guid, &mIfrVendorGuid) && ExtendOpCode == EFI_IFR_EXTEND_OP_LABEL) {
- break;
- }
- }
- }
- }
-
- //
- // Fill in the update data
- //
- if (Data != NULL) {
- EfiCopyMem (BufferPos, Data->Data, Data->Offset);
- BufferPos += Data->Offset;
- *TempBufferSize += Data->Offset;
- }
-
- //
- // Copy the reset data
- //
- EfiCopyMem (BufferPos, IfrOpHdr, PackageHeader.Length - Offset);
- *TempBufferSize += PackageHeader.Length - Offset;
-
- Updated = TRUE;
- break;
- default :
- break;
- }
-
- //
- // Go to the next Op-Code
- //
- Offset += IfrOpHdr->Length;
- IfrOpHdr = (EFI_IFR_OP_HEADER *) ((CHAR8 *) (IfrOpHdr) + IfrOpHdr->Length);
- }
-
- //
- // Update the package length.
- //
- PackageHeader.Length = *TempBufferSize;
- EfiCopyMem (*TempBuffer, &PackageHeader, sizeof (EFI_HII_PACKAGE_HEADER));
-
-Fail:
- if (!Updated) {
- gBS->FreePool (*TempBuffer);
- *TempBufferSize = 0;
- return EFI_NOT_FOUND;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-IfrLibInitUpdateData (
- IN OUT EFI_HII_UPDATE_DATA *UpdateData,
- IN UINT32 BufferSize
- )
-/*++
-
-Routine Description:
- This function initialize the data structure for dynamic opcode.
-
-Arguments:
- UpdateData - The adding data;
- BufferSize - Length of the buffer to fill dynamic opcodes.
-
-Returns:
- EFI_SUCCESS - Update data is initialized.
- EFI_INVALID_PARAMETER - UpdateData is NULL.
- EFI_OUT_OF_RESOURCES - No enough memory to allocate.
-
---*/
-{
- if (UpdateData == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- UpdateData->BufferSize = BufferSize;
- UpdateData->Offset = 0;
- UpdateData->Data = EfiLibAllocatePool (BufferSize);
-
- return (UpdateData->Data != NULL) ? EFI_SUCCESS : EFI_OUT_OF_RESOURCES;
-}
-
-EFI_STATUS
-IfrLibFreeUpdateData (
- IN EFI_HII_UPDATE_DATA *UpdateData
- )
-/*++
-
-Routine Description:
- This function free the resource of update data.
-
-Arguments:
- UpdateData - The adding data;
-
-Returns:
- EFI_SUCCESS - Resource in UpdateData is released.
- EFI_INVALID_PARAMETER - UpdateData is NULL.
-
---*/
-{
- EFI_STATUS Status;
-
- if (UpdateData == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = gBS->FreePool (UpdateData->Data);
- UpdateData->Data = NULL;
-
- return Status;
-}
-
-EFI_STATUS
-IfrLibUpdateForm (
- IN EFI_HII_HANDLE Handle,
- IN EFI_GUID *FormSetGuid, OPTIONAL
- IN EFI_FORM_ID FormId,
- IN UINT16 Label,
- IN BOOLEAN Insert,
- IN EFI_HII_UPDATE_DATA *Data
- )
-/*++
-
-Routine Description:
- This function allows the caller to update a form that has
- previously been registered with the EFI HII database.
-
-Arguments:
- Handle - Hii Handle
- FormSetGuid - The formset should be updated.
- FormId - The form should be updated.
- Label - Update information starting immediately after this label in the IFR
- Insert - If TRUE and Data is not NULL, insert data after Label.
- If FALSE, replace opcodes between two labels with Data
- Data - The adding data; If NULL, remove opcodes between two Label.
-
-Returns:
- EFI_SUCCESS - Update success.
- Other - Update fail.
-
---*/
-{
- EFI_STATUS Status;
- EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
- EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
- UINT32 Index;
- EFI_HII_PACKAGE_LIST_HEADER *UpdateBuffer;
- UINTN BufferSize;
- UINT8 *UpdateBufferPos;
- EFI_HII_PACKAGE_HEADER PackageHeader;
- EFI_HII_PACKAGE_HEADER *Package;
- UINT32 PackageLength;
- EFI_HII_PACKAGE_HEADER *TempBuffer;
- UINT32 TempBufferSize;
- BOOLEAN Updated;
-
- if (Data == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- LocateHiiProtocols ();
- HiiDatabase = gIfrLibHiiDatabase;
-
- //
- // Get the orginal package list
- //
- BufferSize = 0;
- HiiPackageList = NULL;
- Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
- if (Status == EFI_BUFFER_TOO_SMALL) {
- HiiPackageList = EfiLibAllocatePool (BufferSize);
- ASSERT (HiiPackageList != NULL);
-
- Status = HiiDatabase->ExportPackageLists (HiiDatabase, Handle, &BufferSize, HiiPackageList);
- if (EFI_ERROR (Status)) {
- gBS->FreePool (HiiPackageList);
- return Status;
- }
- }
-
- //
- // Calculate and allocate space for retrieval of IFR data
- //
- BufferSize += Data->Offset;
- UpdateBuffer = EfiLibAllocateZeroPool (BufferSize);
- if (UpdateBuffer == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- UpdateBufferPos = (UINT8 *) UpdateBuffer;
-
- //
- // copy the package list header
- //
- EfiCopyMem (UpdateBufferPos, HiiPackageList, sizeof (EFI_HII_PACKAGE_LIST_HEADER));
- UpdateBufferPos += sizeof (EFI_HII_PACKAGE_LIST_HEADER);
-
- Updated = FALSE;
- for (Index = 0; ; Index++) {
- Status = GetPackageDataFromPackageList (HiiPackageList, Index, &PackageLength, &Package);
- if (Status == EFI_SUCCESS) {
- EfiCopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
- if ((PackageHeader.Type == EFI_HII_PACKAGE_FORMS) && !Updated) {
- Status = UpdateFormPackageData (FormSetGuid, FormId, Package, PackageLength, Label, Insert, Data, (UINT8 **)&TempBuffer, &TempBufferSize);
- if (!EFI_ERROR(Status)) {
- if (FormSetGuid == NULL) {
- Updated = TRUE;
- }
- EfiCopyMem (UpdateBufferPos, TempBuffer, TempBufferSize);
- UpdateBufferPos += TempBufferSize;
- gBS->FreePool (TempBuffer);
- continue;
- }
- }
-
- EfiCopyMem (UpdateBufferPos, Package, PackageLength);
- UpdateBufferPos += PackageLength;
- } else if (Status == EFI_NOT_FOUND) {
- break;
- } else {
- gBS->FreePool (HiiPackageList);
- return Status;
- }
- }
-
- //
- // Update package list length
- //
- BufferSize = UpdateBufferPos - (UINT8 *) UpdateBuffer;
- EfiCopyMem (&UpdateBuffer->PackageLength, &BufferSize, sizeof (UINT32));
-
- gBS->FreePool (HiiPackageList);
-
- return HiiDatabase->UpdatePackageList (HiiDatabase, Handle, UpdateBuffer);
-}
-
-EFI_STATUS
-IfrLibCreatePopUp (
- IN UINTN NumberOfLines,
- OUT EFI_INPUT_KEY *KeyValue,
- IN CHAR16 *String,
- ...
- )
-/*++
-
-Routine Description:
- Draw a dialog and return the selected key.
-
-Arguments:
- NumberOfLines - The number of lines for the dialog box
- KeyValue - The EFI_KEY value returned if HotKey is TRUE..
- String - Pointer to the first string in the list
- ... - A series of (quantity == NumberOfLines) text strings which
- will be used to construct the dialog box
-
-Returns:
- EFI_SUCCESS - Displayed dialog and received user interaction
- EFI_INVALID_PARAMETER - One of the parameters was invalid.
-
---*/
-{
- UINTN Index;
- UINTN Count;
- UINTN Start;
- UINTN End;
- UINTN Top;
- UINTN Bottom;
- CHAR16 *StringPtr;
- UINTN LeftColumn;
- UINTN RightColumn;
- UINTN TopRow;
- UINTN BottomRow;
- UINTN DimensionsWidth;
- UINTN DimensionsHeight;
- VA_LIST Marker;
- EFI_INPUT_KEY Key;
- UINTN LargestString;
- CHAR16 *StackString;
- EFI_STATUS Status;
- UINTN StringLen;
- CHAR16 *LineBuffer;
- CHAR16 **StringArray;
- EFI_EVENT TimerEvent;
- EFI_EVENT WaitList[2];
- UINTN CurrentAttribute;
- EFI_SIMPLE_TEXT_OUT_PROTOCOL *ConOut;
-
- if ((KeyValue == NULL) || (String == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- TopRow = 0;
- BottomRow = 0;
- LeftColumn = 0;
- RightColumn = 0;
-
- ConOut = gST->ConOut;
- ConOut->QueryMode (ConOut, ConOut->Mode->Mode, &RightColumn, &BottomRow);
-
- DimensionsWidth = RightColumn - LeftColumn;
- DimensionsHeight = BottomRow - TopRow;
-
- CurrentAttribute = ConOut->Mode->Attribute;
-
- LineBuffer = EfiLibAllocateZeroPool (DimensionsWidth * sizeof (CHAR16));
- ASSERT (LineBuffer != NULL);
-
- //
- // Determine the largest string in the dialog box
- // Notice we are starting with 1 since String is the first string
- //
- StringArray = EfiLibAllocateZeroPool (NumberOfLines * sizeof (CHAR16 *));
- LargestString = EfiStrLen (String);
- StringArray[0] = String;
-
- VA_START (Marker, String);
- for (Index = 1; Index < NumberOfLines; Index++) {
- StackString = VA_ARG (Marker, CHAR16 *);
-
- if (StackString == NULL) {
- VA_END (Marker);
- return EFI_INVALID_PARAMETER;
- }
-
- StringArray[Index] = StackString;
- StringLen = EfiStrLen (StackString);
- if (StringLen > LargestString) {
- LargestString = StringLen;
- }
- }
- VA_END (Marker);
-
- if ((LargestString + 2) > DimensionsWidth) {
- LargestString = DimensionsWidth - 2;
- }
-
- //
- // Subtract the PopUp width from total Columns, allow for one space extra on
- // each end plus a border.
- //
- Start = (DimensionsWidth - LargestString - 2) / 2 + LeftColumn + 1;
- End = Start + LargestString + 1;
-
- Top = ((DimensionsHeight - NumberOfLines - 2) / 2) + TopRow - 1;
- Bottom = Top + NumberOfLines + 2;
-
- //
- // Disable cursor
- //
- ConOut->EnableCursor (ConOut, FALSE);
- ConOut->SetAttribute (ConOut, EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE);
-
- StringPtr = &LineBuffer[0];
- *StringPtr++ = BOXDRAW_DOWN_RIGHT;
- for (Index = 0; Index < LargestString; Index++) {
- *StringPtr++ = BOXDRAW_HORIZONTAL;
- }
- *StringPtr++ = BOXDRAW_DOWN_LEFT;
- *StringPtr = L'\0';
-
- ConOut->SetCursorPosition (ConOut, Start, Top);
- ConOut->OutputString (ConOut, LineBuffer);
-
- for (Index = 0; Index < NumberOfLines; Index++) {
- StringPtr = &LineBuffer[0];
- *StringPtr++ = BOXDRAW_VERTICAL;
-
- for (Count = 0; Count < LargestString; Count++) {
- StringPtr[Count] = L' ';
- }
-
- StringLen = EfiStrLen (StringArray[Index]);
- if (StringLen > LargestString) {
- StringLen = LargestString;
- }
- EfiCopyMem (
- StringPtr + ((LargestString - StringLen) / 2),
- StringArray[Index],
- StringLen * sizeof (CHAR16)
- );
- StringPtr += LargestString;
-
- *StringPtr++ = BOXDRAW_VERTICAL;
- *StringPtr = L'\0';
-
- ConOut->SetCursorPosition (ConOut, Start, Top + 1 + Index);
- ConOut->OutputString (ConOut, LineBuffer);
- }
-
- StringPtr = &LineBuffer[0];
- *StringPtr++ = BOXDRAW_UP_RIGHT;
- for (Index = 0; Index < LargestString; Index++) {
- *StringPtr++ = BOXDRAW_HORIZONTAL;
- }
- *StringPtr++ = BOXDRAW_UP_LEFT;
- *StringPtr = L'\0';
-
- ConOut->SetCursorPosition (ConOut, Start, Top + NumberOfLines + 1);
- ConOut->OutputString (ConOut, LineBuffer);
-
- do {
- Status = gBS->CreateEvent (EFI_EVENT_TIMER, 0, NULL, NULL, &TimerEvent);
-
- //
- // Set a timer event of 1 second expiration
- //
- gBS->SetTimer (
- TimerEvent,
- TimerRelative,
- 10000000
- );
-
- //
- // Wait for the keystroke event or the timer
- //
- WaitList[0] = gST->ConIn->WaitForKey;
- WaitList[1] = TimerEvent;
- Status = gBS->WaitForEvent (2, WaitList, &Index);
-
- //
- // Check for the timer expiration
- //
- if (!EFI_ERROR (Status) && Index == 1) {
- Status = EFI_TIMEOUT;
- }
-
- gBS->CloseEvent (TimerEvent);
- } while (Status == EFI_TIMEOUT);
-
- Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);
- EfiCopyMem (KeyValue, &Key, sizeof (EFI_INPUT_KEY));
-
- ConOut->SetAttribute (ConOut, CurrentAttribute);
- ConOut->EnableCursor (ConOut, TRUE);
-
- return Status;
-}
-
-EFI_STATUS
-ExtractDefault(
- IN VOID *Buffer,
- IN UINTN *BufferSize,
- UINTN Number,
- ...
- )
-/*++
-
- Routine Description:
-
- Configure the buffer accrording to ConfigBody strings.
-
- Arguments:
- DefaultId - the ID of default.
- Buffer - the start address of buffer.
- BufferSize - the size of buffer.
- Number - the number of the strings.
-
- Returns:
- EFI_BUFFER_TOO_SMALL - the BufferSize is too small to operate.
- EFI_INVALID_PARAMETER - Buffer is NULL or BufferSize is 0.
- EFI_SUCCESS - Operation successful.
-
---*/
-{
- VA_LIST Args;
- UINTN Index;
- UINT32 TotalLen;
- UINT8 *BufCfgArray;
- UINT8 *BufferPos;
- UINT16 Offset;
- UINT16 Width;
- UINT8 *Value;
-
- if ((Buffer == NULL) || (BufferSize == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- Offset = 0;
- Width = 0;
- Value = NULL;
-
- VA_START (Args, Number);
- for (Index = 0; Index < Number; Index++) {
- BufCfgArray = (UINT8 *) VA_ARG (Args, VOID *);
- EfiCopyMem (&TotalLen, BufCfgArray, sizeof (UINT32));
- BufferPos = BufCfgArray + sizeof (UINT32);
-
- while ((UINT32)(BufferPos - BufCfgArray) < TotalLen) {
- EfiCopyMem (&Offset, BufferPos, sizeof (UINT16));
- BufferPos += sizeof (UINT16);
- EfiCopyMem (&Width, BufferPos, sizeof (UINT16));
- BufferPos += sizeof (UINT16);
- Value = BufferPos;
- BufferPos += Width;
-
- if ((UINTN)(Offset + Width) > *BufferSize) {
- VA_END (Args);
- return EFI_BUFFER_TOO_SMALL;
- }
-
- EfiCopyMem ((UINT8 *)Buffer + Offset, Value, Width);
- }
- }
- VA_END (Args);
-
- *BufferSize = (UINTN)Offset;
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ExtractBlockName (
- IN UINT8 *Buffer,
- OUT CHAR16 **BlockName
- )
-/*++
-
- Routine Description:
-
- Extract block name from the array generated by VFR compiler. The name of
- this array is "Vfr + <StorageName> + BlockName", e.g. "VfrMyIfrNVDataBlockName".
- Format of this array is:
- Array length | 4-bytes
- Offset | 2-bytes
- Width | 2-bytes
- Offset | 2-bytes
- Width | 2-bytes
- ... ...
-
- Arguments:
- Buffer - Array generated by VFR compiler.
- BlockName - The returned <BlockName>
-
- Returns:
- EFI_OUT_OF_RESOURCES - Run out of memory resource.
- EFI_INVALID_PARAMETER - Buffer is NULL or BlockName is NULL.
- EFI_SUCCESS - Operation successful.
-
---*/
-{
- UINTN Index;
- UINT32 Length;
- UINT32 BlockNameNumber;
- UINTN HexStringBufferLen;
- CHAR16 *StringPtr;
-
- if ((Buffer == NULL) || (BlockName == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Calculate number of Offset/Width pair
- //
- EfiCopyMem (&Length, Buffer, sizeof (UINT32));
- BlockNameNumber = (Length - sizeof (UINT32)) / (sizeof (UINT16) * 2);
-
- //
- // <BlockName> ::= &OFFSET=1234&WIDTH=1234
- // | 8 | 4 | 7 | 4 |
- //
- StringPtr = EfiLibAllocateZeroPool ((BlockNameNumber * (8 + 4 + 7 + 4) + 1) * sizeof (CHAR16));
- *BlockName = StringPtr;
- if (StringPtr == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- Buffer += sizeof (UINT32);
- for (Index = 0; Index < BlockNameNumber; Index++) {
- EfiStrCpy (StringPtr, L"&OFFSET=");
- StringPtr += 8;
-
- HexStringBufferLen = 5;
- BufToHexString (StringPtr, &HexStringBufferLen, Buffer, sizeof (UINT16));
- Buffer += sizeof (UINT16);
- StringPtr += 4;
-
- EfiStrCpy (StringPtr, L"&WIDTH=");
- StringPtr += 7;
-
- HexStringBufferLen = 5;
- BufToHexString (StringPtr, &HexStringBufferLen, Buffer, sizeof (UINT16));
- Buffer += sizeof (UINT16);
- StringPtr += 4;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ExtractBlockConfig (
- IN UINT8 *Buffer,
- OUT CHAR16 **BlockConfig
- )
-/*++
-
- Routine Description:
-
- Extract block config from the array generated by VFR compiler. The name of
- this array is "Vfr + <StorageName> + Default<HexCh>4", e.g. "VfrMyIfrNVDataDefault0000".
-
- Arguments:
- Buffer - Array generated by VFR compiler.
- BlockConfig - The returned <BlockConfig>
-
- Returns:
- EFI_OUT_OF_RESOURCES - Run out of memory resource.
- EFI_INVALID_PARAMETER - Buffer is NULL or BlockConfig is NULL.
- EFI_SUCCESS - Operation successful.
-
---*/
-{
- UINT32 Length;
- UINT16 Width;
- UINTN HexStringBufferLen;
- CHAR16 *StringPtr;
- UINT8 *BufferEnd;
- CHAR16 *StringEnd;
- EFI_STATUS Status;
-
- if ((Buffer == NULL) || (BlockConfig == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Calculate length of AltResp string
- // Format of Default value array is:
- // Array length | 4-bytes
- // Offset | 2-bytes
- // Width | 2-bytes
- // Value | Variable length
- // Offset | 2-bytes
- // Width | 2-bytes
- // Value | Variable length
- // ... ...
- // When value is 1 byte in length, overhead of AltResp string will be maximum,
- // BlockConfig ::= <&OFFSET=1234&WIDTH=1234&VALUE=12>+
- // | 8 | 4 | 7 | 4 | 7 |2|
- // so the maximum length of BlockConfig could be calculated as:
- // (ArrayLength / 5) * (8 + 4 + 7 + 4 + 7 + 2) = ArrayLength * 6.4 < ArrayLength * 7
- //
- EfiCopyMem (&Length, Buffer, sizeof (UINT32));
- BufferEnd = Buffer + Length;
- StringPtr = EfiLibAllocatePool (Length * 7 * sizeof (CHAR16));
- *BlockConfig = StringPtr;
- if (StringPtr == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
- StringEnd = StringPtr + (Length * 7);
-
- Buffer += sizeof (UINT32);
- while (Buffer < BufferEnd) {
- EfiStrCpy (StringPtr, L"&OFFSET=");
- StringPtr += 8;
-
- HexStringBufferLen = 5;
- BufToHexString (StringPtr, &HexStringBufferLen, Buffer, sizeof (UINT16));
- Buffer += sizeof (UINT16);
- StringPtr += 4;
-
- EfiStrCpy (StringPtr, L"&WIDTH=");
- StringPtr += 7;
-
- HexStringBufferLen = 5;
- BufToHexString (StringPtr, &HexStringBufferLen, Buffer, sizeof (UINT16));
- EfiCopyMem (&Width, Buffer, sizeof (UINT16));
- Buffer += sizeof (UINT16);
- StringPtr += 4;
-
- EfiStrCpy (StringPtr, L"&VALUE=");
- StringPtr += 7;
-
- HexStringBufferLen = StringEnd - StringPtr;
- Status = BufToHexString (StringPtr, &HexStringBufferLen, Buffer, Width);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- Buffer += Width;
- StringPtr += (Width * 2);
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ConstructConfigAltResp (
- IN EFI_STRING ConfigRequest, OPTIONAL
- OUT EFI_STRING *Progress,
- OUT EFI_STRING *ConfigAltResp,
- IN EFI_GUID *Guid,
- IN CHAR16 *Name,
- IN EFI_HANDLE *DriverHandle,
- IN VOID *BufferStorage,
- IN UINTN BufferStorageSize,
- IN VOID *BlockNameArray, OPTIONAL
- IN UINTN NumberAltCfg,
- ...
-//IN UINT16 AltCfgId,
-//IN VOID *DefaultValueArray,
- )
-/*++
-
- Routine Description:
-
- Construct <ConfigAltResp> for a buffer storage.
-
- Arguments:
- ConfigRequest - The Config request string. If set to NULL, all the
- configurable elements will be extracted from BlockNameArray.
- ConfigAltResp - The returned <ConfigAltResp>.
- Progress - On return, points to a character in the Request.
- Guid - GUID of the buffer storage.
- Name - Name of the buffer storage.
- DriverHandle - The DriverHandle which is used to invoke HiiDatabase
- protocol interface NewPackageList().
- BufferStorage - Content of the buffer storage.
- BufferStorageSize - Length in bytes of the buffer storage.
- BlockNameArray - Array generated by VFR compiler.
- NumberAltCfg - Number of Default value array generated by VFR compiler.
- The sequential input parameters will be number of
- AltCfgId and DefaultValueArray pairs. When set to 0,
- there will be no <AltResp>.
-
- Returns:
- EFI_OUT_OF_RESOURCES - Run out of memory resource.
- EFI_INVALID_PARAMETER - ConfigAltResp is NULL.
- EFI_SUCCESS - Operation successful.
-
---*/
-{
- EFI_STATUS Status;
- CHAR16 *ConfigHdr;
- CHAR16 *BlockName;
- CHAR16 *DescHdr;
- CHAR16 *StringPtr;
- CHAR16 **AltCfg;
- UINT16 AltCfgId;
- VOID *DefaultValueArray;
- UINTN StrBufferLen;
- EFI_STRING ConfigResp;
- EFI_STRING TempStr;
- VA_LIST Args;
- UINTN AltRespLen;
- UINTN Index;
- BOOLEAN NeedFreeConfigRequest;
- EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
-
- if (ConfigAltResp == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Construct <ConfigHdr> : "GUID=...&NAME=...&PATH=..."
- //
- ConfigHdr = NULL;
- StrBufferLen = 0;
- Status = ConstructConfigHdr (
- ConfigHdr,
- &StrBufferLen,
- Guid,
- Name,
- DriverHandle
- );
- if (Status == EFI_BUFFER_TOO_SMALL) {
- ConfigHdr = EfiLibAllocateZeroPool (StrBufferLen);
- Status = ConstructConfigHdr (
- ConfigHdr,
- &StrBufferLen,
- Guid,
- Name,
- DriverHandle
- );
- }
-
- if (EFI_ERROR (Status) || (ConfigHdr == NULL)) {
- return Status;
- }
-
- //
- // Construct <ConfigResp>
- //
- NeedFreeConfigRequest = FALSE;
- if (ConfigRequest == NULL) {
- //
- // If ConfigRequest is set to NULL, export all configurable elements in BlockNameArray
- //
- Status = ExtractBlockName (BlockNameArray, &BlockName);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- StrBufferLen = EfiStrSize (ConfigHdr);
- StrBufferLen = StrBufferLen + EfiStrSize (BlockName) - sizeof (CHAR16);
- ConfigRequest = EfiLibAllocateZeroPool (StrBufferLen);
- EfiStrCpy (ConfigRequest, ConfigHdr);
- EfiStrCat (ConfigRequest, BlockName);
- NeedFreeConfigRequest = TRUE;
- }
-
- Status = gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **) &HiiConfigRouting);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = HiiConfigRouting->BlockToConfig (
- HiiConfigRouting,
- ConfigRequest,
- BufferStorage,
- BufferStorageSize,
- &ConfigResp,
- (Progress == NULL) ? &TempStr : Progress
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Construct <AltResp>
- //
- DescHdr = EfiLibAllocateZeroPool (NumberAltCfg * 16 * sizeof (CHAR16));
- StringPtr = DescHdr;
- AltCfg = EfiLibAllocateZeroPool (NumberAltCfg * sizeof (CHAR16 *));
- AltRespLen = 0;
- VA_START (Args, NumberAltCfg);
- for (Index = 0; Index < NumberAltCfg; Index++) {
- AltCfgId = (UINT16) VA_ARG (Args, UINT16);
- DefaultValueArray = (UINT8 *) VA_ARG (Args, VOID *);
-
- //
- // '&' <ConfigHdr>
- //
- AltRespLen += (EfiStrLen (ConfigHdr) + 1);
-
- StringPtr = DescHdr + Index * 16;
- EfiStrCpy (StringPtr, L"&ALTCFG=");
- AltRespLen += (8 + sizeof (UINT16) * 2);
-
- StrBufferLen = 5;
- BufToHexString (StringPtr + 8, &StrBufferLen, (UINT8 *) &AltCfgId, sizeof (UINT16));
- Status = ExtractBlockConfig (DefaultValueArray, &AltCfg[Index]);
- if (EFI_ERROR (Status)) {
- VA_END (Args);
- return Status;
- }
- AltRespLen += EfiStrLen (AltCfg[Index]);
- }
- VA_END (Args);
-
- //
- // Generate the final <ConfigAltResp>
- //
- StrBufferLen = (EfiStrLen ((CHAR16 *) ConfigResp) + AltRespLen + 1) * sizeof (CHAR16);
- TempStr = EfiLibAllocateZeroPool (StrBufferLen);
- *ConfigAltResp = TempStr;
- if (TempStr == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- //
- // <ConfigAltResp> ::= <ConfigResp> ['&' <AltResp>]*
- //
- EfiStrCpy (TempStr, ConfigResp);
- for (Index = 0; Index < NumberAltCfg; Index++) {
- EfiStrCat (TempStr, L"&");
- EfiStrCat (TempStr, ConfigHdr);
- EfiStrCat (TempStr, DescHdr + Index * 16);
- EfiStrCat (TempStr, AltCfg[Index]);
-
- gBS->FreePool (AltCfg[Index]);
- }
-
- if (NeedFreeConfigRequest) {
- gBS->FreePool (ConfigRequest);
- }
- gBS->FreePool (ConfigHdr);
- gBS->FreePool (ConfigResp);
- gBS->FreePool (DescHdr);
- gBS->FreePool (AltCfg);
-
- return EFI_SUCCESS;
-}
-
-VOID
-SwapBuffer (
- IN OUT UINT8 *Buffer,
- IN UINTN BufferSize
- )
-/*++
-
-Routine Description:
- Swap bytes in the buffer.
-
-Arguments:
- Buffer - Binary buffer.
- BufferSize - Size of the buffer in bytes.
-
-Returns:
- None.
-
---*/
-{
- UINTN Index;
- UINT8 Temp;
- UINTN SwapCount;
-
- SwapCount = BufferSize / 2;
- for (Index = 0; Index < SwapCount; Index++) {
- Temp = Buffer[Index];
- Buffer[Index] = Buffer[BufferSize - 1 - Index];
- Buffer[BufferSize - 1 - Index] = Temp;
- }
-}
-
-VOID
-ToLower (
- IN OUT CHAR16 *Str
- )
-/*++
-
-Routine Description:
- Converts the unicode character of the string from uppercase to lowercase.
-
-Arguments:
- Str - String to be converted
-
-Returns:
-
---*/
-{
- CHAR16 *Ptr;
-
- for (Ptr = Str; *Ptr != L'\0'; Ptr++) {
- if (*Ptr >= L'A' && *Ptr <= L'Z') {
- *Ptr = (CHAR16) (*Ptr - L'A' + L'a');
- }
- }
-}
-
-EFI_STATUS
-BufferToHexString (
- IN OUT CHAR16 *Str,
- IN UINT8 *Buffer,
- IN UINTN BufferSize
- )
-/*++
-
-Routine Description:
- Converts binary buffer to Unicode string in reversed byte order from BufToHexString().
-
-Arguments:
- Str - String for output
- Buffer - Binary buffer.
- BufferSize - Size of the buffer in bytes.
-
-Returns:
- EFI_SUCCESS - The function completed successfully.
-
---*/
-{
- EFI_STATUS Status;
- UINT8 *NewBuffer;
- UINTN StrBufferLen;
-
- NewBuffer = EfiLibAllocateCopyPool (BufferSize, Buffer);
- SwapBuffer (NewBuffer, BufferSize);
-
- StrBufferLen = BufferSize * 2 + 1;
- Status = BufToHexString (Str, &StrBufferLen, NewBuffer, BufferSize);
-
- gBS->FreePool (NewBuffer);
- //
- // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.
- //
- ToLower (Str);
-
- return Status;
-}
-
-EFI_STATUS
-HexStringToBuffer (
- IN OUT UINT8 *Buffer,
- IN OUT UINTN *BufferSize,
- IN CHAR16 *Str
- )
-/*++
-
-Routine Description:
- Converts Hex String to binary buffer in reversed byte order from HexStringToBuf().
-
-Arguments:
- Buffer - Pointer to buffer that receives the data.
- BufferSize - Length in bytes of the buffer to hold converted data.
- If routine return with EFI_SUCCESS, containing length of converted data.
- If routine return with EFI_BUFFER_TOO_SMALL, containg length of buffer desired.
- Str - String to be converted from.
-
-Returns:
- EFI_SUCCESS - The function completed successfully.
-
---*/
-{
- EFI_STATUS Status;
- UINTN ConvertedStrLen;
-
- ConvertedStrLen = 0;
- Status = HexStringToBuf (Buffer, BufferSize, Str, &ConvertedStrLen);
- if (!EFI_ERROR (Status)) {
- SwapBuffer (Buffer, (ConvertedStrLen + 1) / 2);
- }
-
- return Status;
-}
-
-EFI_STATUS
-ConfigStringToUnicode (
- IN OUT CHAR16 *UnicodeString,
- IN OUT UINTN *StrBufferLen,
- IN CHAR16 *ConfigString
- )
-/*++
-
-Routine Description:
- Convert binary representation Config string (e.g. "0041004200430044") to the
- original string (e.g. "ABCD"). Config string appears in <ConfigHdr> (i.e.
- "&NAME=<string>"), or Name/Value pair in <ConfigBody> (i.e. "label=<string>").
-
-Arguments:
- UnicodeString - Original Unicode string.
- StrBufferLen - On input: Length in bytes of buffer to hold the Unicode string.
- Includes tailing '\0' character.
- On output:
- If return EFI_SUCCESS, containing length of Unicode string buffer.
- If return EFI_BUFFER_TOO_SMALL, containg length of string buffer desired.
- ConfigString - Binary representation of Unicode String, <string> := (<HexCh>4)+
-
-Returns:
- EFI_SUCCESS - Routine success.
- EFI_BUFFER_TOO_SMALL - The string buffer is too small.
-
---*/
-{
- UINTN Index;
- UINTN Len;
- UINTN BufferSize;
- CHAR16 BackupChar;
-
- Len = EfiStrLen (ConfigString) / 4;
- BufferSize = (Len + 1) * sizeof (CHAR16);
-
- if (*StrBufferLen < BufferSize) {
- *StrBufferLen = BufferSize;
- return EFI_BUFFER_TOO_SMALL;
- }
-
- *StrBufferLen = BufferSize;
-
- for (Index = 0; Index < Len; Index++) {
- BackupChar = ConfigString[4];
- ConfigString[4] = L'\0';
-
- HexStringToBuf ((UINT8 *) UnicodeString, &BufferSize, ConfigString, NULL);
-
- ConfigString[4] = BackupChar;
-
- ConfigString += 4;
- UnicodeString += 1;
- }
-
- //
- // Add tailing '\0' character
- //
- *UnicodeString = L'\0';
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-UnicodeToConfigString (
- IN OUT CHAR16 *ConfigString,
- IN OUT UINTN *StrBufferLen,
- IN CHAR16 *UnicodeString
- )
-/*++
-
-Routine Description:
- Convert Unicode string to binary representation Config string, e.g.
- "ABCD" => "0041004200430044". Config string appears in <ConfigHdr> (i.e.
- "&NAME=<string>"), or Name/Value pair in <ConfigBody> (i.e. "label=<string>").
-
-Arguments:
- ConfigString - Binary representation of Unicode String, <string> := (<HexCh>4)+
- StrBufferLen - On input: Length in bytes of buffer to hold the Unicode string.
- Includes tailing '\0' character.
- On output:
- If return EFI_SUCCESS, containing length of Unicode string buffer.
- If return EFI_BUFFER_TOO_SMALL, containg length of string buffer desired.
- UnicodeString - Original Unicode string.
-
-Returns:
- EFI_SUCCESS - Routine success.
- EFI_BUFFER_TOO_SMALL - The string buffer is too small.
-
---*/
-{
- UINTN Index;
- UINTN Len;
- UINTN BufferSize;
- CHAR16 *String;
-
- Len = EfiStrLen (UnicodeString);
- BufferSize = (Len * 4 + 1) * sizeof (CHAR16);
-
- if (*StrBufferLen < BufferSize) {
- *StrBufferLen = BufferSize;
- return EFI_BUFFER_TOO_SMALL;
- }
-
- *StrBufferLen = BufferSize;
- String = ConfigString;
-
- for (Index = 0; Index < Len; Index++) {
- BufToHexString (ConfigString, &BufferSize, (UINT8 *) UnicodeString, 2);
-
- ConfigString += 4;
- UnicodeString += 1;
- }
-
- //
- // Add tailing '\0' character
- //
- *ConfigString = L'\0';
-
- //
- // Convert the uppercase to lowercase since <HexAf> is defined in lowercase format.
- //
- ToLower (String);
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ConstructConfigHdr (
- IN OUT CHAR16 *ConfigHdr,
- IN OUT UINTN *StrBufferLen,
- IN EFI_GUID *Guid,
- IN CHAR16 *Name, OPTIONAL
- IN EFI_HANDLE *DriverHandle
- )
-/*++
-
-Routine Description:
- Construct <ConfigHdr> using routing information GUID/NAME/PATH.
-
-Arguments:
- ConfigHdr - Pointer to the ConfigHdr string.
- StrBufferLen - On input: Length in bytes of buffer to hold the ConfigHdr string.
- Includes tailing '\0' character.
- On output:
- If return EFI_SUCCESS, containing length of ConfigHdr string buffer.
- If return EFI_BUFFER_TOO_SMALL, containg length of string buffer desired.
- Guid - Routing information: GUID.
- Name - Routing information: NAME.
- DriverHandle - Driver handle which contains the routing information: PATH.
-
-Returns:
- EFI_SUCCESS - Routine success.
- EFI_BUFFER_TOO_SMALL - The ConfigHdr string buffer is too small.
-
---*/
-{
- EFI_STATUS Status;
- UINTN NameStrLen;
- UINTN DevicePathSize;
- UINTN BufferSize;
- CHAR16 *StrPtr;
- EFI_DEVICE_PATH_PROTOCOL *DevicePath;
-
- if (Name == NULL) {
- //
- // There will be no "NAME" in <ConfigHdr> for Name/Value storage
- //
- NameStrLen = 0;
- } else {
- //
- // For buffer storage
- //
- NameStrLen = EfiStrLen (Name);
- }
-
- //
- // Retrieve DevicePath Protocol associated with this HiiPackageList
- //
- Status = gBS->HandleProtocol (
- DriverHandle,
- &gEfiDevicePathProtocolGuid,
- (VOID **) &DevicePath
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- DevicePathSize = EfiDevicePathSize (DevicePath);
-
- //
- // GUID=<HexCh>32&NAME=<Char>NameStrLen&PATH=<HexChar>DevicePathStrLen <NULL>
- // | 5 | 32 | 6 | NameStrLen*4 | 6 | DevicePathStrLen | 1 |
- //
- BufferSize = (5 + 32 + 6 + NameStrLen * 4 + 6 + DevicePathSize * 2 + 1) * sizeof (CHAR16);
- if (*StrBufferLen < BufferSize) {
- *StrBufferLen = BufferSize;
- return EFI_BUFFER_TOO_SMALL;
- }
-
- if (ConfigHdr == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- *StrBufferLen = BufferSize;
-
- StrPtr = ConfigHdr;
-
- EfiStrCpy (StrPtr, L"GUID=");
- StrPtr += 5;
- BufferToHexString (StrPtr, (UINT8 *) Guid, sizeof (EFI_GUID));
- StrPtr += 32;
-
- //
- // Convert name string, e.g. name "ABCD" => "&NAME=0041004200430044"
- //
- EfiStrCpy (StrPtr, L"&NAME=");
- StrPtr += 6;
- if (Name != NULL) {
- BufferSize = (NameStrLen * 4 + 1) * sizeof (CHAR16);
- UnicodeToConfigString (StrPtr, &BufferSize, Name);
- StrPtr += (NameStrLen * 4);
- }
-
- EfiStrCpy (StrPtr, L"&PATH=");
- StrPtr += 6;
- BufferToHexString (StrPtr, (UINT8 *) DevicePath, DevicePathSize);
-
- return EFI_SUCCESS;
-}
-
-BOOLEAN
-IsConfigHdrMatch (
- IN EFI_STRING ConfigString,
- IN EFI_GUID *StorageGuid, OPTIONAL
- IN CHAR16 *StorageName OPTIONAL
- )
-/*++
-
-Routine Description:
- Determines if the Routing data (Guid and Name) is correct in <ConfigHdr>.
-
-Arguments:
- ConfigString - Either <ConfigRequest> or <ConfigResp>.
- StorageGuid - GUID of the storage.
- StorageName - Name of the stoarge.
-
-Returns:
- TRUE - Routing information is correct in ConfigString.
- FALSE - Routing information is incorrect in ConfigString.
-
---*/
-{
- EFI_STATUS Status;
- BOOLEAN Match;
- EFI_GUID Guid;
- CHAR16 *Name;
- CHAR16 *StrPtr;
- UINTN BufferSize;
-
- //
- // <ConfigHdr> ::=
- // GUID=<HexCh>32&NAME=<Char>NameStrLen&PATH=<HexChar>DevicePathStrLen <NULL>
- // | 5 | 32 | 6 | NameStrLen*4 | 6 | DevicePathStrLen | 1 |
- //
- if (EfiStrLen (ConfigString) <= (5 + 32 + 6)) {
- return FALSE;
- }
-
- //
- // Compare GUID
- //
- if (StorageGuid != NULL) {
-
- StrPtr = ConfigString + 5 + 32;
- if (*StrPtr != L'&') {
- return FALSE;
- }
- *StrPtr = L'\0';
-
- BufferSize = sizeof (EFI_GUID);
- Status = HexStringToBuffer (
- (UINT8 *) &Guid,
- &BufferSize,
- ConfigString + 5
- );
- *StrPtr = L'&';
-
- if (EFI_ERROR (Status)) {
- return FALSE;
- }
-
- if (!EfiCompareGuid (&Guid, StorageGuid)) {
- return FALSE;
- }
- }
-
- //
- // Compare Name
- //
- Match = TRUE;
- if (StorageName != NULL) {
- StrPtr = ConfigString + 5 + 32 + 6;
- while (*StrPtr != L'\0' && *StrPtr != L'&') {
- StrPtr++;
- }
- if (*StrPtr != L'&') {
- return FALSE;
- }
-
- *StrPtr = L'\0';
- BufferSize = (EfiStrLen (ConfigString + 5 + 32 + 6) + 1) * sizeof (CHAR16);
- Name = EfiLibAllocatePool (BufferSize);
- ASSERT (Name != NULL);
- Status = ConfigStringToUnicode (
- Name,
- &BufferSize,
- ConfigString + 5 + 32 + 6
- );
- *StrPtr = L'&';
-
- if (EFI_ERROR (Status) || (EfiStrCmp (Name, StorageName) != 0)) {
- Match = FALSE;
- }
- gBS->FreePool (Name);
- }
-
- return Match;
-}
-
-BOOLEAN
-FindBlockName (
- IN OUT CHAR16 *String,
- UINTN Offset,
- UINTN Width
- )
-/*++
-
-Routine Description:
- Search BlockName "&OFFSET=Offset&WIDTH=Width" in a string.
-
-Arguments:
- String - The string to be searched in.
- Offset - Offset in BlockName.
- Width - Width in BlockName.
-
-Returns:
- TRUE - Block name found.
- FALSE - Block name not found.
-
---*/
-{
- EFI_STATUS Status;
- UINTN Data;
- UINTN BufferSize;
- UINTN ConvertedStrLen;
-
- while ((String = EfiStrStr (String, L"&OFFSET=")) != NULL) {
- //
- // Skip '&OFFSET='
- //
- String = String + 8;
-
- Data = 0;
- BufferSize = sizeof (UINTN);
- Status = HexStringToBuf ((UINT8 *) &Data, &BufferSize, String, &ConvertedStrLen);
- if (EFI_ERROR (Status)) {
- return FALSE;
- }
- String = String + ConvertedStrLen;
-
- if (Data != Offset) {
- continue;
- }
-
- if (EfiStrnCmp (String, L"&WIDTH=", 7) != 0) {
- return FALSE;
- }
- String = String + 7;
-
- Data = 0;
- BufferSize = sizeof (UINTN);
- Status = HexStringToBuf ((UINT8 *) &Data, &BufferSize, String, &ConvertedStrLen);
- if (EFI_ERROR (Status)) {
- return FALSE;
- }
- if (Data == Width) {
- return TRUE;
- }
-
- String = String + ConvertedStrLen;
- }
-
- return FALSE;
-}
-
-EFI_STATUS
-GetBrowserData (
- EFI_GUID *VariableGuid, OPTIONAL
- CHAR16 *VariableName, OPTIONAL
- UINTN *BufferSize,
- UINT8 *Buffer
- )
-/*++
-
-Routine Description:
- This routine is invoked by ConfigAccess.Callback() to retrived uncommitted data from Form Browser.
-
-Arguments:
- VariableGuid - An optional field to indicate the target variable GUID name to use.
- VariableName - An optional field to indicate the target human-readable variable name.
- BufferSize - On input: Length in bytes of buffer to hold retrived data.
- On output:
- If return EFI_BUFFER_TOO_SMALL, containg length of buffer desired.
- Buffer - Buffer to hold retrived data.
-
-Returns:
- EFI_SUCCESS - Routine success.
- EFI_BUFFER_TOO_SMALL - The intput buffer is too small.
-
---*/
-{
- EFI_STATUS Status;
- CHAR16 *ConfigHdr;
- CHAR16 *ConfigResp;
- CHAR16 *StringPtr;
- UINTN HeaderLen;
- UINTN BufferLen;
- CHAR16 *Progress;
- EFI_FORM_BROWSER2_PROTOCOL *FormBrowser2;
- EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
-
- //
- // Locate protocols for use
- //
- Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &FormBrowser2);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **) &HiiConfigRouting);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Retrive formset storage data from Form Browser
- //
- ConfigHdr = mFakeConfigHdr;
- HeaderLen = EfiStrLen (ConfigHdr);
-
- BufferLen = 0x4000;
- ConfigResp = EfiLibAllocateZeroPool (BufferLen + (HeaderLen + 1) * sizeof (CHAR16));
-
- StringPtr = ConfigResp + HeaderLen;
- *StringPtr = L'&';
- StringPtr++;
-
- Status = FormBrowser2->BrowserCallback (
- FormBrowser2,
- &BufferLen,
- StringPtr,
- TRUE,
- VariableGuid,
- VariableName
- );
- if (Status == EFI_BUFFER_TOO_SMALL) {
- gBS->FreePool (ConfigResp);
- ConfigResp = EfiLibAllocateZeroPool (BufferLen + (HeaderLen + 1) * sizeof (CHAR16));
-
- StringPtr = ConfigResp + HeaderLen;
- *StringPtr = L'&';
- StringPtr++;
-
- Status = FormBrowser2->BrowserCallback (
- FormBrowser2,
- &BufferLen,
- StringPtr,
- TRUE,
- VariableGuid,
- VariableName
- );
- }
- if (EFI_ERROR (Status)) {
- gBS->FreePool (ConfigResp);
- return Status;
- }
- EfiCopyMem (ConfigResp, ConfigHdr, HeaderLen * sizeof (UINT16));
-
- //
- // Convert <ConfigResp> to buffer data
- //
- Status = HiiConfigRouting->ConfigToBlock (
- HiiConfigRouting,
- ConfigResp,
- Buffer,
- BufferSize,
- &Progress
- );
- gBS->FreePool (ConfigResp);
-
- return Status;
-}
-
-EFI_STATUS
-SetBrowserData (
- EFI_GUID *VariableGuid, OPTIONAL
- CHAR16 *VariableName, OPTIONAL
- UINTN BufferSize,
- UINT8 *Buffer,
- CHAR16 *RequestElement OPTIONAL
- )
-/*++
-
-Routine Description:
- This routine is invoked by ConfigAccess.Callback() to update uncommitted data of Form Browser.
-
-Arguments:
- VariableGuid - An optional field to indicate the target variable GUID name to use.
- VariableName - An optional field to indicate the target human-readable variable name.
- BufferSize - Length in bytes of buffer to hold retrived data.
- Buffer - Buffer to hold retrived data.
- RequestElement - An optional field to specify which part of the buffer data
- will be send back to Browser. If NULL, the whole buffer of
- data will be committed to Browser.
- <RequestElement> ::= &OFFSET=<Number>&WIDTH=<Number>*
-
-Returns:
- EFI_SUCCESS - Routine success.
- Other - Updating Browser uncommitted data failed.
-
---*/
-{
- EFI_STATUS Status;
- CHAR16 *ConfigHdr;
- CHAR16 *ConfigResp;
- CHAR16 *StringPtr;
- UINTN HeaderLen;
- UINTN BufferLen;
- CHAR16 *Progress;
- EFI_FORM_BROWSER2_PROTOCOL *FormBrowser2;
- EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
- CHAR16 BlockName[33];
- CHAR16 *ConfigRequest;
- CHAR16 *Request;
-
- //
- // Locate protocols for use
- //
- Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &FormBrowser2);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Status = gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **) &HiiConfigRouting);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Prepare <ConfigRequest>
- //
- ConfigHdr = mFakeConfigHdr;
- HeaderLen = EfiStrLen (ConfigHdr);
-
- if (RequestElement == NULL) {
- //
- // RequestElement not specified, use "&OFFSET=0&WIDTH=<BufferSize>" as <BlockName>
- //
- BlockName[0] = L'\0';
- EfiStrCpy (BlockName, L"&OFFSET=0&WIDTH=");
-
- //
- // String lenghth of L"&OFFSET=0&WIDTH=" is 16
- //
- StringPtr = BlockName + 16;
- BufferLen = sizeof (BlockName) - (16 * sizeof (CHAR16));
- BufToHexString (StringPtr, &BufferLen, (UINT8 *) &BufferSize, sizeof (UINTN));
-
- Request = BlockName;
- } else {
- Request = RequestElement;
- }
-
- BufferLen = HeaderLen * sizeof (CHAR16) + EfiStrSize (Request);
- ConfigRequest = EfiLibAllocateZeroPool (BufferLen);
-
- EfiCopyMem (ConfigRequest, ConfigHdr, HeaderLen * sizeof (CHAR16));
- StringPtr = ConfigRequest + HeaderLen;
- EfiStrCpy (StringPtr, Request);
-
- //
- // Convert buffer to <ConfigResp>
- //
- Status = HiiConfigRouting->BlockToConfig (
- HiiConfigRouting,
- ConfigRequest,
- Buffer,
- BufferSize,
- &ConfigResp,
- &Progress
- );
- if (EFI_ERROR (Status)) {
- gBS->FreePool (ConfigRequest);
- return Status;
- }
-
- //
- // Skip <ConfigHdr> and '&'
- //
- StringPtr = ConfigResp + HeaderLen + 1;
-
- //
- // Change uncommitted data in Browser
- //
- Status = FormBrowser2->BrowserCallback (
- FormBrowser2,
- &BufferSize,
- StringPtr,
- FALSE,
- VariableGuid,
- VariableName
- );
- gBS->FreePool (ConfigResp);
- gBS->FreePool (ConfigRequest);
- return Status;
-}
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