1 files changed, 51 insertions, 0 deletions
diff --git a/SignedCapsulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.c b/SignedCapsulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.c
new file mode 100644
index 0000000000..b34ebbba1e
--- /dev/null
+++ b/SignedCapsulePkg/Library/PlatformFlashAccessLibNull/PlatformFlashAccessLibNull.c
@@ -0,0 +1,51 @@
+/** @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[in] FirmwareType      The type of firmware.
+  @param[in] FlashAddress      The address of flash device to be accessed.
+  @param[in] FlashAddressType  The type of flash device address.
+  @param[in] Buffer            The pointer to the data buffer.
+  @param[in] 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 (FlashAddressType == FlashAddressTypeRelativeAddress) {
+    FlashAddress = FlashAddress + mInternalFdAddress;
+  }
+  CopyMem((VOID *)(UINTN)(FlashAddress), Buffer, Length);
+  return EFI_SUCCESS;
+}