From: Duke Zhai <Duke.Zhai@amd.com>

BZ #:4640
In V3: Improve coding style follow edk2 C coding standard.
  1.Remove macro definition extra underscores.
  2.Putting some AMD copyright in the right place.

In V2: Improve coding style.
  1.Remove the leading underscore and use double underscore at trailing in C header files.
  2.Remove old tianocore licenses and redundant license description.
  3.Improve coding style. For example: remove space between @param.

In V1:
  A small part of Chachani platform code and FSPWrapperPkg needs IdsHookExtLib.
  Initial AmdIdsHookExtLibNull for ChachaniBoardPkg module.

Signed-off-by: Ken Yao <ken.yao@amd.com>
Cc: Duke Zhai <duke.zhai@amd.com>
Cc: Eric Xing <eric.xing@amd.com>
Cc: Igniculus Fu <igniculus.fu@amd.com>
Cc: Abner Chang <abner.chang@amd.com>
---
 .../AmdIdsExtLibNull/AmdIdsHookExtLibNull.c   | 33 ++++++++++++++++
 .../AmdIdsExtLibNull/AmdIdsHookExtLibNull.inf | 39 +++++++++++++++++++
 2 files changed, 72 insertions(+)
 create mode 100644 Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.c
 create mode 100644 Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.inf

diff --git a/Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.c b/Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.c
new file mode 100644
index 0000000000..f59b5beea1
--- /dev/null
+++ b/Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.c
@@ -0,0 +1,33 @@
+/** @file
+  Implements AmdIdsHookExtLibNull.c
+
+  Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+#include <Pi/PiMultiPhase.h>
+
+typedef enum {
+  IDS_HOOK_UNSUPPORTED = 1
+} IDS_HOOK_STATUS;
+
+IDS_HOOK_STATUS
+IdsHookExtEntry (
+  UINT32  HookId,
+  VOID    *Handle,
+  VOID    *Data
+  )
+{
+  return IDS_HOOK_UNSUPPORTED;
+}
+
+IDS_HOOK_STATUS
+GetIdsNvTable (
+  IN OUT   VOID    *IdsNvTable,
+  IN OUT   UINT32  *IdsNvTableSize
+  )
+{
+  return IDS_HOOK_UNSUPPORTED;
+}
diff --git a/Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.inf b/Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.inf
new file mode 100644
index 0000000000..354c19dd19
--- /dev/null
+++ b/Platform/AMD/VanGoghBoard/ChachaniBoardPkg/Library/AmdIdsExtLibNull/AmdIdsHookExtLibNull.inf
@@ -0,0 +1,39 @@
+## @file
+#  Amd Ids Hook Ext Lib Module INF file
+#
+# Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010006
+  BASE_NAME                      = AmdIdsHookExtLibNull.inf
+  FILE_GUID                      = CB364A1C-793D-46CE-B80A-0AB5FCB16D76
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = AmdIdsHookExtLib
+
+[Sources.common]
+  AmdIdsHookExtLibNull.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+
+[LibraryClasses]
+
+[Guids]
+
+[Protocols]
+
+[Ppis]
+
+[FeaturePcd]
+
+[Pcd]
+
+[Depex]
+  TRUE
+
+[BuildOptions]
+
-- 
2.31.1



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