ArmPlatformPkg: add Null implementation of LcdPlatformlLib

In order to be able to build ArmPlatformPkg components outside of
the context of a particular platform, add Null implementation of
LcdPlatformlLib.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

ArmPlatformPkg/Library/LcdPlatformNullLib/LcdPlatformNullLib.c

@@ -0,0 +1,92 @@
+/** @file
+
+  Copyright (c) 2017, Linaro, Ltd. All rights reserved.
+
+  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 <Base.h>
+#include <Uefi/UefiBaseType.h>
+#include <Library/DebugLib.h>
+#include <Library/LcdPlatformLib.h>
+
+EFI_STATUS
+LcdPlatformInitializeDisplay (
+  IN EFI_HANDLE   Handle
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+LcdPlatformGetVram (
+  OUT EFI_PHYSICAL_ADDRESS*                 VramBaseAddress,
+  OUT UINTN*                                VramSize
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+UINT32
+LcdPlatformGetMaxMode (
+  VOID
+  )
+{
+  ASSERT (FALSE);
+  return 0;
+}
+
+EFI_STATUS
+LcdPlatformSetMode (
+  IN UINT32                                 ModeNumber
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+LcdPlatformQueryMode (
+  IN  UINT32                                ModeNumber,
+  OUT EFI_GRAPHICS_OUTPUT_MODE_INFORMATION  *Info
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+LcdPlatformGetTimings (
+  IN  UINT32                              ModeNumber,
+  OUT UINT32*                             HRes,
+  OUT UINT32*                             HSync,
+  OUT UINT32*                             HBackPorch,
+  OUT UINT32*                             HFrontPorch,
+  OUT UINT32*                             VRes,
+  OUT UINT32*                             VSync,
+  OUT UINT32*                             VBackPorch,
+  OUT UINT32*                             VFrontPorch
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}
+
+EFI_STATUS
+LcdPlatformGetBpp (
+  IN  UINT32                                ModeNumber,
+  OUT LCD_BPP*                              Bpp
+  )
+{
+  ASSERT (FALSE);
+  return EFI_UNSUPPORTED;
+}

ArmPlatformPkg/Library/LcdPlatformNullLib/LcdPlatformNullLib.inf

@@ -0,0 +1,28 @@
+#/** @file
+#
+#  Copyright (c) 2017, Linaro, Ltd. All rights reserved.
+#
+#  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                    = 0x0001001A
+  BASE_NAME                      = LcdPlatformNullLib
+  FILE_GUID                      = b78d02bb-d0b5-4389-bc7f-b39ee846c784
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = LcdPlatformNullLib
+
+[Sources]
+  LcdPlatformNullLib.c
+
+[Packages]
+  ArmPlatformPkg/ArmPlatformPkg.dec
+  MdePkg/MdePkg.dec