ArmPlatformPkg/Library/LcdHwNullLib/LcdHwNullLib.c

   1 /** @file
   2
   3   Copyright (c) 2017, Linaro, Ltd. All rights reserved.
   4
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include <Base.h>
  16 #include <Uefi/UefiBaseType.h>
  17 #include <Library/DebugLib.h>
  18 #include <Library/LcdPlatformLib.h>
  19
  20 /**
  21   Check for presence of display
  22
  23   @retval EFI_SUCCESS            Platform implements display.
  24   @retval EFI_NOT_FOUND          Display not found on the platform.
  25
  26 **/
  27 EFI_STATUS
  28 LcdIdentify (
  29   VOID
  30   )
  31 {
  32   return EFI_SUCCESS;
  33 }
  34
  35 /**
  36   Initialize display.
  37
  38   @param  FrameBaseAddress       Address of the frame buffer.
  39   @retval EFI_SUCCESS            Display initialization success.
  40   @retval !(EFI_SUCCESS)         Display initialization failure.
  41
  42 **/
  43 EFI_STATUS
  44 LcdInitialize (
  45   EFI_PHYSICAL_ADDRESS  FrameBaseAddress
  46   )
  47 {
  48   return EFI_SUCCESS;
  49 }
  50
  51 /**
  52   Set requested mode of the display.
  53
  54   @param  ModeNumber             Display mode number.
  55   @retval EFI_SUCCESS            Display set mode success.
  56   @retval EFI_DEVICE_ERROR       If mode not found/supported.
  57
  58 **/
  59 EFI_STATUS
  60 LcdSetMode (
  61   IN UINT32  ModeNumber
  62   )
  63 {
  64   return EFI_SUCCESS;
  65 }
  66
  67 /**
  68   De-initializes the display.
  69 **/
  70 VOID
  71 LcdShutdown (
  72   VOID
  73   )
  74 {
  75 }