ArmPlatformPkg: create hw-agnostic LcdGraphicsOutputDxe driver

Create a new LcdGraphicsOutputDxe driver from the existing sources that
takes its hardware abstractions from a LcdHwLib library instance rather
than from a .c file linked directly. All we need is a new .inf file, and
a minimal tweak to LcdGraphicsOutputDxe.h to reuse the LcdHwlib prototypes
rather than open code them.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Girish Pathak <girish.pathak@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
[ardb: add it to ArmPlatformPkg.dsc so we can build test it standalone]
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

ArmPlatformPkg/ArmPlatformPkg.dsc

@@ -53,6 +53,7 @@
   DxeServicesTableLib|MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.inf
   HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
   IoLib|MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsic.inf
+  LcdHwLib|ArmPlatformPkg/Library/LcdHwNullLib/LcdHwNullLib.inf
   LcdPlatformLib|ArmPlatformPkg/Library/LcdPlatformNullLib/LcdPlatformNullLib.inf
   LzmaDecompressLib|MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
   MemoryAllocationLib|MdePkg/Library/UefiMemoryAllocationLib/UefiMemoryAllocationLib.inf
@@ -93,6 +94,7 @@
 
 [Components.common]
   ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/HdLcdGraphicsOutputDxe.inf
+  ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputDxe.inf
   ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/PL111LcdGraphicsOutputDxe.inf
   ArmPlatformPkg/Drivers/NorFlashDxe/NorFlashDxe.inf
   ArmPlatformPkg/Drivers/PL061GpioDxe/PL061GpioDxe.inf

ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputDxe.h

@@ -18,6 +18,7 @@
 #include <Base.h>
 
 #include <Library/DebugLib.h>
+#include <Library/LcdHwLib.h>
 #include <Library/LcdPlatformLib.h>
 #include <Library/PcdLib.h>
 #include <Library/UefiLib.h>
@@ -105,24 +106,4 @@ InitializeDisplay (
   IN LCD_INSTANCE* Instance
 );
 
-EFI_STATUS
-LcdIdentify (
-  VOID
-);
-
-EFI_STATUS
-LcdInitialize (
-  EFI_PHYSICAL_ADDRESS  VramBaseAddress
-);
-
-EFI_STATUS
-LcdSetMode (
-  IN UINT32  ModeNumber
-);
-
-VOID
-LcdShutdown (
-  VOID
-);
-
 #endif /* __ARM_VE_GRAPHICS_DXE_H__ */

ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputDxe.inf

@@ -0,0 +1,54 @@
+#/** @file
+#
+#  Component description file for LcdGraphicsOutputDxe module
+#
+#  Copyright (c) 2011-2012, ARM Ltd. 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                    = 0x0001001A
+  BASE_NAME                      = LcdGraphicsOutputDxe
+  FILE_GUID                      = 89464DAE-8DAA-41FE-A4C8-40D2175AF1E9
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = LcdGraphicsOutputDxeInitialize
+
+[Sources.common]
+  LcdGraphicsOutputDxe.c
+  LcdGraphicsOutputBlt.c
+
+[Packages]
+  ArmPlatformPkg/ArmPlatformPkg.dec
+  ArmPkg/ArmPkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  MdePkg/MdePkg.dec
+
+[LibraryClasses]
+  ArmLib
+  BaseLib
+  BaseMemoryLib
+  DebugLib
+  LcdHwLib
+  LcdPlatformLib
+  UefiBootServicesTableLib
+  UefiDriverEntryPoint
+  UefiLib
+
+[Protocols]
+  gEfiDevicePathProtocolGuid
+  gEfiGraphicsOutputProtocolGuid
+
+[FeaturePcd]
+  gArmPlatformTokenSpaceGuid.PcdGopDisableOnExitBootServices
+
+[Depex]
+  TRUE