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-rw-r--r--EDK/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrCommon.c762
1 files changed, 762 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrCommon.c b/EDK/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrCommon.c
new file mode 100644
index 0000000..d2a66e0
--- /dev/null
+++ b/EDK/Foundation/Library/Dxe/UefiEfiIfrSupportLib/UefiIfrCommon.c
@@ -0,0 +1,762 @@
+/*++
+
+Copyright (c) 2007 - 2011, Intel Corporation
+All rights reserved. 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:
+
+ UefiIfrCommon.c
+
+Abstract:
+
+ Common Library Routines to assist handle HII elements.
+
+--*/
+
+#include "UefiIfrLibrary.h"
+
+//
+// Hii vendor device path template
+//
+HII_VENDOR_DEVICE_PATH mHiiVendorDevicePathTemplate = {
+ {
+ {
+ {
+ HARDWARE_DEVICE_PATH,
+ HW_VENDOR_DP,
+ (UINT8) (sizeof (HII_VENDOR_DEVICE_PATH_NODE)),
+ (UINT8) ((sizeof (HII_VENDOR_DEVICE_PATH_NODE)) >> 8)
+ },
+ EFI_IFR_TIANO_GUID,
+ },
+ 0,
+ 0
+ },
+ {
+ END_DEVICE_PATH_TYPE,
+ END_ENTIRE_DEVICE_PATH_SUBTYPE,
+ END_DEVICE_PATH_LENGTH,
+ 0
+ }
+};
+
+//
+// Hii relative protocols
+//
+BOOLEAN mHiiProtocolsInitialized = FALSE;
+
+EFI_HII_DATABASE_PROTOCOL *gIfrLibHiiDatabase;
+EFI_HII_STRING_PROTOCOL *gIfrLibHiiString;
+
+VOID
+LocateHiiProtocols (
+ VOID
+ )
+/*++
+
+Routine Description:
+ This function locate Hii relative protocols for later usage.
+
+Arguments:
+ None.
+
+Returns:
+ None.
+
+--*/
+{
+ EFI_STATUS Status;
+
+ if (mHiiProtocolsInitialized) {
+ return;
+ }
+
+ Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, &gIfrLibHiiDatabase);
+ ASSERT_EFI_ERROR (Status);
+
+ Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, &gIfrLibHiiString);
+ ASSERT_EFI_ERROR (Status);
+
+ mHiiProtocolsInitialized = TRUE;
+}
+
+EFI_HII_PACKAGE_LIST_HEADER *
+PreparePackageList (
+ IN UINTN NumberOfPackages,
+ IN EFI_GUID *GuidId,
+ ...
+ )
+/*++
+
+Routine Description:
+ Assemble EFI_HII_PACKAGE_LIST according to the passed in packages.
+
+Arguments:
+ NumberOfPackages - Number of packages.
+ GuidId - Package GUID.
+
+Returns:
+ Pointer of EFI_HII_PACKAGE_LIST_HEADER.
+
+--*/
+{
+ VA_LIST Marker;
+ EFI_HII_PACKAGE_LIST_HEADER *PackageListHeader;
+ UINT8 *PackageListData;
+ UINT32 PackageListLength;
+ UINT32 PackageLength;
+ EFI_HII_PACKAGE_HEADER PackageHeader;
+ UINT8 *PackageArray;
+ UINTN Index;
+
+ PackageListLength = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+
+ VA_START (Marker, GuidId);
+ for (Index = 0; Index < NumberOfPackages; Index++) {
+ EfiCopyMem (&PackageLength, VA_ARG (Marker, VOID *), sizeof (UINT32));
+ PackageListLength += (PackageLength - sizeof (UINT32));
+ }
+ VA_END (Marker);
+
+ //
+ // Include the lenght of EFI_HII_PACKAGE_END
+ //
+ PackageListLength += sizeof (EFI_HII_PACKAGE_HEADER);
+ PackageListHeader = EfiLibAllocateZeroPool (PackageListLength);
+ ASSERT (PackageListHeader != NULL);
+ EfiCopyMem (&PackageListHeader->PackageListGuid, GuidId, sizeof (EFI_GUID));
+ PackageListHeader->PackageLength = PackageListLength;
+
+ PackageListData = ((UINT8 *) PackageListHeader) + sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+
+ VA_START (Marker, GuidId);
+ for (Index = 0; Index < NumberOfPackages; Index++) {
+ PackageArray = (UINT8 *) VA_ARG (Marker, VOID *);
+ EfiCopyMem (&PackageLength, PackageArray, sizeof (UINT32));
+ PackageLength -= sizeof (UINT32);
+ PackageArray += sizeof (UINT32);
+ EfiCopyMem (PackageListData, PackageArray, PackageLength);
+ PackageListData += PackageLength;
+ }
+ VA_END (Marker);
+
+ //
+ // Append EFI_HII_PACKAGE_END
+ //
+ PackageHeader.Type = EFI_HII_PACKAGE_END;
+ PackageHeader.Length = sizeof (EFI_HII_PACKAGE_HEADER);
+ EfiCopyMem (PackageListData, &PackageHeader, PackageHeader.Length);
+
+ return PackageListHeader;
+}
+
+EFI_STATUS
+CreateHiiDriverHandle (
+ OUT EFI_HANDLE *DriverHandle
+ )
+/*++
+
+Routine Description:
+ The HII driver handle passed in for HiiDatabase.NewPackageList() requires
+ that there should be DevicePath Protocol installed on it.
+ This routine create a virtual Driver Handle by installing a vendor device
+ path on it, so as to use it to invoke HiiDatabase.NewPackageList().
+
+Arguments:
+ DriverHandle - Handle to be returned
+
+Returns:
+ EFI_SUCCESS - Handle destroy success.
+ EFI_OUT_OF_RESOURCES - Not enough memory.
+
+--*/
+{
+ EFI_STATUS Status;
+ HII_VENDOR_DEVICE_PATH_NODE *VendorDevicePath;
+
+ VendorDevicePath = EfiLibAllocateCopyPool (sizeof (HII_VENDOR_DEVICE_PATH), &mHiiVendorDevicePathTemplate);
+ if (VendorDevicePath == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ //
+ // Use memory address as unique ID to distinguish from different device paths
+ //
+ VendorDevicePath->UniqueId = (UINT64) ((UINTN) VendorDevicePath);
+
+ *DriverHandle = NULL;
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ DriverHandle,
+ &gEfiDevicePathProtocolGuid,
+ VendorDevicePath,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+DestroyHiiDriverHandle (
+ IN EFI_HANDLE DriverHandle
+ )
+/*++
+
+Routine Description:
+ Destroy the Driver Handle created by CreateHiiDriverHandle().
+
+Arguments:
+ DriverHandle - Handle returned by CreateHiiDriverHandle()
+
+Returns:
+ EFI_SUCCESS - Handle destroy success.
+ other - Handle destroy fail.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+
+ Status = gBS->HandleProtocol (
+ DriverHandle,
+ &gEfiDevicePathProtocolGuid,
+ &DevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ Status = gBS->UninstallProtocolInterface (
+ DriverHandle,
+ &gEfiDevicePathProtocolGuid,
+ DevicePath
+ );
+ gBS->FreePool (DevicePath);
+ return Status;
+}
+
+EFI_HII_HANDLE
+DevicePathToHiiHandle (
+ IN EFI_HII_DATABASE_PROTOCOL *HiiDatabase,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
+ )
+/*++
+
+Routine Description:
+ Find HII Handle associated with given Device Path.
+
+Arguments:
+ HiiDatabase - Point to EFI_HII_DATABASE_PROTOCOL instance.
+ DevicePath - Device Path associated with the HII package list handle.
+
+Returns:
+ Handle - HII package list Handle associated with the Device Path.
+ NULL - Hii Package list handle is not found.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_DEVICE_PATH_PROTOCOL *TmpDevicePath;
+ UINTN BufferSize;
+ UINTN HandleCount;
+ UINTN Index;
+ EFI_HANDLE *Handles;
+ EFI_HANDLE Handle;
+ UINTN Size;
+ EFI_HANDLE DriverHandle;
+ EFI_HII_HANDLE *HiiHandles;
+ EFI_HII_HANDLE HiiHandle;
+
+ //
+ // Locate Device Path Protocol handle buffer
+ //
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiDevicePathProtocolGuid,
+ NULL,
+ &HandleCount,
+ &Handles
+ );
+ if (EFI_ERROR (Status)) {
+ return NULL;
+ }
+
+ //
+ // Search Driver Handle by Device Path
+ //
+ DriverHandle = NULL;
+ BufferSize = EfiDevicePathSize (DevicePath);
+ for(Index = 0; Index < HandleCount; Index++) {
+ Handle = Handles[Index];
+ gBS->HandleProtocol (Handle, &gEfiDevicePathProtocolGuid, &TmpDevicePath);
+
+ //
+ // Check whether DevicePath match
+ //
+ Size = EfiDevicePathSize (TmpDevicePath);
+ if ((Size == BufferSize) && EfiCompareMem (DevicePath, TmpDevicePath, Size) == 0) {
+ DriverHandle = Handle;
+ break;
+ }
+ }
+ gBS->FreePool (Handles);
+
+ if (DriverHandle == NULL) {
+ return NULL;
+ }
+
+ //
+ // Retrieve all Hii Handles from HII database
+ //
+ BufferSize = 0x1000;
+ HiiHandles = EfiLibAllocatePool (BufferSize);
+ ASSERT (HiiHandles != NULL);
+ Status = HiiDatabase->ListPackageLists (
+ HiiDatabase,
+ EFI_HII_PACKAGE_TYPE_ALL,
+ NULL,
+ &BufferSize,
+ HiiHandles
+ );
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ gBS->FreePool (HiiHandles);
+ HiiHandles = EfiLibAllocatePool (BufferSize);
+ ASSERT (HiiHandles != NULL);
+
+ Status = HiiDatabase->ListPackageLists (
+ HiiDatabase,
+ EFI_HII_PACKAGE_TYPE_ALL,
+ NULL,
+ &BufferSize,
+ HiiHandles
+ );
+ }
+
+ if (EFI_ERROR (Status)) {
+ gBS->FreePool (HiiHandles);
+ return NULL;
+ }
+
+ //
+ // Search Hii Handle by Driver Handle
+ //
+ HiiHandle = NULL;
+ HandleCount = BufferSize / sizeof (EFI_HII_HANDLE);
+ for (Index = 0; Index < HandleCount; Index++) {
+ Status = HiiDatabase->GetPackageListHandle (
+ HiiDatabase,
+ HiiHandles[Index],
+ &Handle
+ );
+ if (!EFI_ERROR (Status) && (Handle == DriverHandle)) {
+ HiiHandle = HiiHandles[Index];
+ break;
+ }
+ }
+
+ gBS->FreePool (HiiHandles);
+ return HiiHandle;
+}
+
+EFI_STATUS
+GetHiiHandles (
+ IN OUT UINTN *HandleBufferLength,
+ OUT EFI_HII_HANDLE **HiiHandleBuffer
+ )
+/*++
+
+Routine Description:
+ Determines the handles that are currently active in the database.
+ It's the caller's responsibility to free handle buffer.
+
+Arguments:
+ HiiDatabase - A pointer to the EFI_HII_DATABASE_PROTOCOL instance.
+ HandleBufferLength - On input, a pointer to the length of the handle buffer. On output,
+ the length of the handle buffer that is required for the handles found.
+ HiiHandleBuffer - Pointer to an array of Hii Handles returned.
+
+Returns:
+ EFI_SUCCESS - Get an array of Hii Handles successfully.
+ EFI_INVALID_PARAMETER - Hii is NULL.
+ EFI_NOT_FOUND - Database not found.
+
+--*/
+{
+ UINTN BufferLength;
+ EFI_STATUS Status;
+
+ BufferLength = 0;
+
+ LocateHiiProtocols ();
+
+ //
+ // Try to find the actual buffer size for HiiHandle Buffer.
+ //
+ Status = gIfrLibHiiDatabase->ListPackageLists (
+ gIfrLibHiiDatabase,
+ EFI_HII_PACKAGE_TYPE_ALL,
+ NULL,
+ &BufferLength,
+ *HiiHandleBuffer
+ );
+
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ *HiiHandleBuffer = EfiLibAllocateZeroPool (BufferLength);
+ Status = gIfrLibHiiDatabase->ListPackageLists (
+ gIfrLibHiiDatabase,
+ EFI_HII_PACKAGE_TYPE_ALL,
+ NULL,
+ &BufferLength,
+ *HiiHandleBuffer
+ );
+ //
+ // we should not fail here.
+ //
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ *HandleBufferLength = BufferLength;
+
+ return Status;
+}
+
+EFI_STATUS
+ExtractGuidFromHiiHandle (
+ IN EFI_HII_HANDLE Handle,
+ OUT EFI_GUID *Guid
+ )
+/*++
+
+Routine Description:
+ Extract Hii package list GUID for given HII handle.
+
+Arguments:
+ HiiHandle - Hii handle
+ Guid - Package list GUID
+
+Returns:
+ EFI_SUCCESS - Successfully extract GUID from Hii database.
+
+--*/
+{
+ EFI_STATUS Status;
+ UINTN BufferSize;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+ EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
+
+ //
+ // Locate HII Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ &HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get HII PackageList
+ //
+ 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)) {
+ return Status;
+ }
+
+ //
+ // Extract GUID
+ //
+ EfiCopyMem (Guid, &HiiPackageList->PackageListGuid, sizeof (EFI_GUID));
+
+ gBS->FreePool (HiiPackageList);
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+ExtractClassFromHiiHandle (
+ IN EFI_HII_HANDLE Handle,
+ OUT UINT16 *Class,
+ OUT EFI_STRING_ID *FormSetTitle,
+ OUT EFI_STRING_ID *FormSetHelp
+ )
+/*++
+
+Routine Description:
+ Extract formset class for given HII handle.
+
+Arguments:
+ HiiHandle - Hii handle
+ Class - Class of the formset
+ FormSetTitle - Formset title string
+ FormSetHelp - Formset help string
+
+Returns:
+ EFI_SUCCESS - Successfully extract Class for specified Hii handle.
+ EFI_NOT_FOUND - Class not found.
+
+--*/
+{
+ EFI_STATUS Status;
+ UINTN BufferSize;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+ EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
+ UINT8 *Package;
+ UINT8 *FormSet;
+ UINT8 *OpCodeData;
+ UINT32 Offset;
+ UINT32 Offset2;
+ UINT32 PackageListLength;
+ EFI_HII_PACKAGE_HEADER PackageHeader;
+ BOOLEAN ClassFound;
+
+ *Class = EFI_NON_DEVICE_CLASS;
+ *FormSetTitle = 0;
+ *FormSetHelp = 0;
+ ClassFound = FALSE;
+
+ //
+ // Locate HII Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ &HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get HII PackageList
+ //
+ 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)) {
+ return Status;
+ }
+
+ //
+ // Get Form package from this HII package List
+ //
+ Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ Offset2 = 0;
+ FormSet = NULL;
+ EfiCopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
+
+ while (Offset < PackageListLength) {
+ Package = ((UINT8 *) HiiPackageList) + Offset;
+ EfiCopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
+
+ if (PackageHeader.Type == EFI_HII_PACKAGE_FORMS) {
+ //
+ // Search Class Opcode in this Form Package
+ //
+ Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
+ while (Offset2 < PackageHeader.Length) {
+ OpCodeData = Package + Offset2;
+ if (OpCodeData == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
+ //
+ // Find FormSet OpCode
+ //
+ EfiCopyMem (FormSetTitle, &((EFI_IFR_FORM_SET *) OpCodeData)->FormSetTitle, sizeof (EFI_STRING_ID));
+ EfiCopyMem (FormSetHelp, &((EFI_IFR_FORM_SET *) OpCodeData)->Help, sizeof (EFI_STRING_ID));
+ }
+
+ if ((((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_GUID_OP) &&
+ (EfiCompareGuid (&mIfrVendorGuid, &((EFI_IFR_GUID *) OpCodeData)->Guid)) &&
+ (((EFI_IFR_GUID_CLASS *) OpCodeData)->ExtendOpCode == EFI_IFR_EXTEND_OP_CLASS)
+ ) {
+ //
+ // Find GUIDed Class OpCode
+ //
+ EfiCopyMem (Class, &((EFI_IFR_GUID_CLASS *) OpCodeData)->Class, sizeof (UINT16));
+
+ //
+ // Till now, we ought to have found the formset Opcode
+ //
+ ClassFound = TRUE;
+ break;
+ }
+
+ Offset2 += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
+ }
+
+ if (Offset2 < PackageHeader.Length) {
+ //
+ // Target formset found
+ //
+ break;
+ }
+ }
+
+ Offset += PackageHeader.Length;
+ }
+
+ gBS->FreePool (HiiPackageList);
+
+ return ClassFound ? EFI_SUCCESS : EFI_NOT_FOUND;
+}
+
+EFI_STATUS
+ExtractClassGuidFromHiiHandle (
+ IN EFI_HII_HANDLE Handle,
+ OUT UINT8 *NumberOfClassGuid,
+ OUT EFI_GUID **ClassGuid,
+ OUT EFI_STRING_ID *FormSetTitle,
+ OUT EFI_STRING_ID *FormSetHelp
+ )
+/*++
+
+Routine Description:
+ Extract formset ClassGuid for given HII handle.
+
+Arguments:
+ HiiHandle - Hii handle
+ NumberOfClassGuid - Number of ClassGuid
+ ClassGuid - Pointer to callee allocated buffer, an array of ClassGuid
+ FormSetTitle - Formset title string
+ FormSetHelp - Formset help string
+
+Returns:
+ EFI_SUCCESS - Successfully extract Class for specified Hii handle.
+
+--*/
+{
+ EFI_STATUS Status;
+ UINTN BufferSize;
+ EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
+ EFI_HII_PACKAGE_LIST_HEADER *HiiPackageList;
+ UINT8 *Package;
+ UINT8 *FormSet;
+ UINT8 *OpCodeData;
+ UINT32 Offset;
+ UINT32 Offset2;
+ UINT32 PackageListLength;
+ EFI_HII_PACKAGE_HEADER PackageHeader;
+
+ if (NumberOfClassGuid == NULL || ClassGuid == NULL || FormSetTitle == NULL || FormSetHelp == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *NumberOfClassGuid = 0;
+ *ClassGuid = NULL;
+ *FormSetTitle = 0;
+ *FormSetHelp = 0;
+
+ //
+ // Locate HII Database protocol
+ //
+ Status = gBS->LocateProtocol (
+ &gEfiHiiDatabaseProtocolGuid,
+ NULL,
+ &HiiDatabase
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get HII PackageList
+ //
+ 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)) {
+ return Status;
+ }
+
+ //
+ // Get Form package from this HII package List
+ //
+ Offset = sizeof (EFI_HII_PACKAGE_LIST_HEADER);
+ Offset2 = 0;
+ FormSet = NULL;
+ EfiCopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
+
+ while (Offset < PackageListLength) {
+ Package = ((UINT8 *) HiiPackageList) + Offset;
+ EfiCopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
+
+ if (PackageHeader.Type == EFI_HII_PACKAGE_FORMS) {
+ //
+ // Search Class Opcode in this Form Package
+ //
+ Offset2 = sizeof (EFI_HII_PACKAGE_HEADER);
+ while (Offset2 < PackageHeader.Length) {
+ OpCodeData = Package + Offset2;
+ if (OpCodeData == NULL) {
+ return EFI_NOT_FOUND;
+ }
+
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_FORM_SET_OP) {
+ //
+ // Find FormSet OpCode
+ //
+ EfiCopyMem (FormSetTitle, &((EFI_IFR_FORM_SET *) OpCodeData)->FormSetTitle, sizeof (EFI_STRING_ID));
+ EfiCopyMem (FormSetHelp, &((EFI_IFR_FORM_SET *) OpCodeData)->Help, sizeof (EFI_STRING_ID));
+ if (((EFI_IFR_OP_HEADER *) OpCodeData)->Length > ((UINTN) &((EFI_IFR_FORM_SET *) 0)->Flags)) {
+ //
+ // New version of formset OpCode
+ //
+ *NumberOfClassGuid = ((EFI_IFR_FORM_SET *) OpCodeData)->Flags & 0x3;
+ *ClassGuid = EfiLibAllocateCopyPool (
+ *NumberOfClassGuid * sizeof (EFI_GUID),
+ ((EFI_IFR_FORM_SET *) OpCodeData)->ClassGuid
+ );
+ }
+ break;
+ }
+
+ Offset2 += ((EFI_IFR_OP_HEADER *) OpCodeData)->Length;
+ }
+
+ if (Offset2 < PackageHeader.Length) {
+ //
+ // Target formset found
+ //
+ break;
+ }
+ }
+
+ Offset += PackageHeader.Length;
+ }
+
+ gBS->FreePool (HiiPackageList);
+
+ return EFI_SUCCESS;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 19:46:49 +0000