MdeModulePkg: Add PlatformVarCleanupLib library

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18295 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Library/PlatformVarCleanupLib/PlatVarCleanupHii.h

@@ -0,0 +1,59 @@
+/** @file
+  Include file for platform variable cleanup HII.
+
+Copyright (c) 2015, 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.
+
+**/
+
+#ifndef _PLAT_VAR_CLEANUP_HII_
+#define _PLAT_VAR_CLEANUP_HII_
+
+//
+// {24F14D8A-D7A8-4991-91E0-96C3B7DB8456}
+//
+#define VARIABLE_CLEANUP_HII_GUID \
+  { \
+    0x24f14d8a, 0xd7a8, 0x4991, { 0x91, 0xe0, 0x96, 0xc3, 0xb7, 0xdb, 0x84, 0x56 } \
+  }
+
+#define MAX_USER_VARIABLE_COUNT         0x1000
+
+typedef struct {
+  UINT8   SelectAll;
+  //
+  // FALSE is to not delete, TRUE is to delete.
+  //
+  UINT8   UserVariable[MAX_USER_VARIABLE_COUNT];
+} VARIABLE_CLEANUP_DATA;
+
+#define VARIABLE_CLEANUP_VARSTORE_ID    0x8000
+
+//
+// Field offset of structure VARIABLE_CLEANUP_DATA
+//
+#define VAR_OFFSET(Field)               ((UINTN) &(((VARIABLE_CLEANUP_DATA *) 0)->Field))
+#define USER_VARIABLE_VAR_OFFSET        (VAR_OFFSET (UserVariable))
+
+#define FORM_ID_VARIABLE_CLEANUP        0x8000
+
+#define LABEL_START                     0x0000
+#define LABEL_END                       0xFFFF
+
+#define SELECT_ALL_QUESTION_ID          0x7FFD
+#define SAVE_AND_EXIT_QUESTION_ID       0x7FFE
+#define NO_SAVE_AND_EXIT_QUESTION_ID    0x7FFF
+
+//
+// Tool automatic generated Question Id start from 1.
+// In order to avoid to conflict them, the user variable QuestionID offset is defined from 0x8000.
+//
+#define USER_VARIABLE_QUESTION_ID       0x8000
+
+#endif