[PATCH 13/45] MdeModulePkg/PlatformFlashAccessLib: Add NULL PlatformFlashAccessLib.

[Jiewen Yao <jiewen.yao@intel.com>]

Add NULL instance to pass build.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Chao Zhang <chao.b.zhang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
---
 MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.c   | 54 ++++++++++++++++++++
 MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.inf | 40 +++++++++++++++
 MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.uni | 21 ++++++++
 3 files changed, 115 insertions(+)

diff --git a/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.c b/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.c
new file mode 100644
index 0000000..7bbe37e
--- /dev/null
+++ b/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.c
@@ -0,0 +1,54 @@
+/** @file
+  Platform flash device access library NULL instance.
+
+  Copyright (c) 2016, 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.
+
+**/
+
+#include <PiDxe.h>
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/PlatformFlashAccessLib.h>
+
+UINT64 mInternalFdAddress;
+
+/**
+  Perform flash write opreation.
+
+  @param FirmwareType      The type of firmware.
+  @param FlashAddress      The address of flash device to be accessed.
+  @param FlashAddressType  The type of flash device address.
+  @param Buffer            The pointer to the data buffer.
+  @param Length            The length of data buffer in bytes.
+
+  @retval EFI_SUCCESS           The operation returns successfully.
+  @retval EFI_WRITE_PROTECTED   The flash device is read only.
+  @retval EFI_UNSUPPORTED       The flash device access is unsupported.
+  @retval EFI_INVALID_PARAMETER The input parameter is not valid.
+**/
+EFI_STATUS
+EFIAPI
+PerformFlashWrite(
+  IN PLATFORM_FIRMWARE_TYPE       FirmwareType,
+  IN EFI_PHYSICAL_ADDRESS         FlashAddress,
+  IN FLASH_ADDRESS_TYPE           FlashAddressType,
+  IN VOID                         *Buffer,
+  IN UINTN                        Length
+  )
+{
+  if (FirmwareType >= PlatformFirmwareTypeMax) {
+    return EFI_UNSUPPORTED;
+  }
+  if (FlashAddressType == FlashAddressTypeRelativeAddress) {
+    FlashAddress = FlashAddress + mInternalFdAddress;
+  }
+  CopyMem((VOID *)(UINTN)(FlashAddress), Buffer, Length);
+  return EFI_SUCCESS;
+}
diff --git a/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.inf b/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.inf
new file mode 100644
index 0000000..262821d
--- /dev/null
+++ b/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.inf
@@ -0,0 +1,40 @@
+## @file
+#  Platform flash device access library.
+#
+#  Platform flash device access library NULL instance.
+#
+#  Copyright (c) 2016, 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.
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = PlatformFlashAccessLibNull
+  MODULE_UNI_FILE                = PlatformFlashAccessLibNull.uni
+  FILE_GUID                      = A0534D92-9776-4E4E-9234-C9DC1849DBB5
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = PlatformFlashAccessLib
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 IPF EBC
+#
+
+[Sources]
+  PlatformFlashAccessLibNull.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  BaseMemoryLib
diff --git a/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.uni b/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.uni
new file mode 100644
index 0000000..ae2648e
--- /dev/null
+++ b/MdeModulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.uni
@@ -0,0 +1,21 @@
+// /** @file
+//  Platform flash device access library.
+//
+//  Platform flash device access library NULL instance.
+//
+// Copyright (c) 2016, 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.
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "Platform flash device access library."
+
+#string STR_MODULE_DESCRIPTION          #language en-US "Platform flash device access library NULL instance."
+
-- 
2.7.4.windows.1