From adad542ba1003229e75fbf97149a09f8d967e05c Mon Sep 17 00:00:00 2001
From: Abner Chang <abner.chang@hpe.com>
Date: Tue, 13 Oct 2020 09:24:04 +0800
Subject: [PATCH] RedfishPkg/PlatformHostInterfaceLib: Platform NULL lib

NULL instance of PlatformHostInterfaceLib.

Signed-off-by: Abner Chang <abner.chang@hpe.com>

Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Fan Wang <fan.wang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Nickle Wang <nickle.wang@hpe.com>
Reviewed-by: Nickle Wang <nickle.wang@hpe.com>
---
 .../PlatformHostInterfaceLibNull.c            | 52 +++++++++++++++++++
 .../PlatformHostInterfaceLibNull.inf          | 33 ++++++++++++
 2 files changed, 85 insertions(+)
 create mode 100644 RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.c
 create mode 100644 RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.inf

diff --git a/RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.c b/RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.c
new file mode 100644
index 0000000000..5c93a003e3
--- /dev/null
+++ b/RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.c
@@ -0,0 +1,52 @@
+/** @file
+  NULL instace of RedfishPlatformHostInterfaceLib
+
+  (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/RedfishHostInterfaceLib.h>
+#include <Library/UefiLib.h>
+
+/**
+  Get platform Redfish host interface device descriptor.
+
+  @param[in] DeviceType         Pointer to retrieve device type.
+  @param[out] DeviceDescriptor  Pointer to retrieve REDFISH_INTERFACE_DATA, caller has to free
+                                this memory using FreePool().
+
+  @retval EFI_NOT_FOUND   No Redfish host interface descriptor provided on this platform.
+
+**/
+EFI_STATUS
+RedfishPlatformHostInterfaceDeviceDescriptor (
+  IN UINT8 *DeviceType,
+  OUT REDFISH_INTERFACE_DATA  **DeviceDescriptor
+)
+{
+  return EFI_NOT_FOUND;
+}
+/**
+  Get platform Redfish host interface protocol data.
+  Caller should pass NULL in ProtocolRecord to retrive the first protocol record.
+  Then continuously pass previous ProtocolRecord for retrieving the next ProtocolRecord.
+
+  @param[in, out] ProtocolRecord  Pointer to retrieve the first or the next protocol record.
+                                  caller has to free the new protocol record returned from
+                                  this function using FreePool().
+  @param[in] IndexOfProtocolData  The index of protocol data.
+
+  @retval EFI_NOT_FOUND   No more protocol records.
+
+**/
+EFI_STATUS
+RedfishPlatformHostInterfaceProtocolData (
+  IN OUT MC_HOST_INTERFACE_PROTOCOL_RECORD **ProtocolRecord,
+  IN UINT8  IndexOfProtocolData
+)
+{
+  return EFI_NOT_FOUND;
+}
diff --git a/RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.inf b/RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.inf
new file mode 100644
index 0000000000..b42e5335ee
--- /dev/null
+++ b/RedfishPkg/Library/PlatformHostInterfaceLibNull/PlatformHostInterfaceLibNull.inf
@@ -0,0 +1,33 @@
+## @file
+#  NULL instance of RedfishPlatformHostInterfaceLib
+#
+#  (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001000b
+  BASE_NAME                      = RedfishPlatformHostInterfaceLibNull
+  FILE_GUID                      = 851229BF-4D8B-30F3-DD0D-20AFAF99A77B
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = RedfishPlatformHostInterfaceLib
+
+#
+#  VALID_ARCHITECTURES           = IA32 X64 ARM AARCH64 RISCV64
+#
+
+[Sources]
+  PlatformHostInterfaceLibNull.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  RedfishPkg/RedfishPkg.dec
+
+[LibraryClasses]
+  UefiLib
+  BaseLib
+