1) Cleanup HiiLib, IfrSupportLib.

2) Add ExtendedHiiLib and ExtendedIfrSupportLib which implement APIs that require the OPcode and Device Path which is specific to Intel's implementation.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4662 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Library/ExtendedIfrSupportLib/Common.c

@@ -0,0 +1,177 @@
+/** @file
+
+Copyright (c) 2007, 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 "LibraryInternal.h"
+
+
+//
+// Hii relative protocols
+//
+
+EFI_HII_DATABASE_PROTOCOL *gIfrLibHiiDatabase;
+EFI_HII_STRING_PROTOCOL   *gIfrLibHiiString;
+
+EFI_STATUS
+EFIAPI
+ExtendedIfrSupportLibConstructor (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_SYSTEM_TABLE     *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &gIfrLibHiiDatabase);
+  ASSERT_EFI_ERROR (Status);
+
+  Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &gIfrLibHiiString);
+  ASSERT_EFI_ERROR (Status);
+  
+  return EFI_SUCCESS;
+}
+
+
+
+STATIC EFI_GUID mIfrVendorGuid = EFI_IFR_TIANO_GUID;
+
+EFI_STATUS
+EFIAPI
+IfrLibExtractClassFromHiiHandle (
+  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_STATUS                   Status;
+  UINTN                        BufferSize;
+  EFI_HII_PACKAGE_LIST_HEADER  *HiiPackageList;
+  UINT8                        *Package;
+  UINT8                        *OpCodeData;
+  UINT32                       Offset;
+  UINT32                       Offset2;
+  UINT32                       PackageListLength;
+  EFI_HII_PACKAGE_HEADER       PackageHeader;
+
+  ASSERT (Handle != NULL);
+  ASSERT (Class != NULL);  
+  ASSERT (FormSetTitle != NULL);
+  ASSERT (FormSetHelp != NULL);
+
+  *Class = EFI_NON_DEVICE_CLASS;
+  *FormSetTitle = 0;
+  *FormSetHelp = 0;
+
+  //
+  // Get HII PackageList
+  //
+  BufferSize = 0;
+  HiiPackageList = NULL;
+  Status = gIfrLibHiiDatabase->ExportPackageLists (gIfrLibHiiDatabase, Handle, &BufferSize, HiiPackageList);
+  ASSERT (Status != EFI_NOT_FOUND);
+  
+  if (Status == EFI_BUFFER_TOO_SMALL) {
+    HiiPackageList = AllocatePool (BufferSize);
+    ASSERT (HiiPackageList != NULL);
+
+    Status = gIfrLibHiiDatabase->ExportPackageLists (gIfrLibHiiDatabase, 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;
+  CopyMem (&PackageListLength, &HiiPackageList->PackageLength, sizeof (UINT32));
+
+  while (Offset < PackageListLength) {
+    Package = ((UINT8 *) HiiPackageList) + Offset;
+    CopyMem (&PackageHeader, Package, sizeof (EFI_HII_PACKAGE_HEADER));
+
+    if (PackageHeader.Type == EFI_HII_PACKAGE_FORM) {
+      //
+      // Search Class Opcode 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) {
+          //
+          // Find FormSet OpCode
+          //
+          CopyMem (FormSetTitle, &((EFI_IFR_FORM_SET *) OpCodeData)->FormSetTitle, sizeof (EFI_STRING_ID));
+          CopyMem (FormSetHelp, &((EFI_IFR_FORM_SET *) OpCodeData)->Help, sizeof (EFI_STRING_ID));
+        }
+
+        if ((((EFI_IFR_OP_HEADER *) OpCodeData)->OpCode == EFI_IFR_GUID_OP) &&
+             CompareGuid (&mIfrVendorGuid, (EFI_GUID *)(OpCodeData + sizeof (EFI_IFR_OP_HEADER))) &&
+            (((EFI_IFR_GUID_CLASS *) OpCodeData)->ExtendOpCode == EFI_IFR_EXTEND_OP_CLASS)
+           ) {
+          //
+          // Find GUIDed Class OpCode
+          //
+          CopyMem (Class, &((EFI_IFR_GUID_CLASS *) OpCodeData)->Class, sizeof (UINT16));
+
+          //
+          // Till now, we ought to have found the formset Opcode
+          //
+          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;
+}
+
+