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/** @file
*
* Copyright (c) 2011-2012, ARM Limited. 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 <PiDxe.h>
#include <Library/ArmPlatformGlobalVariableLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/PcdLib.h>
#include <Guid/ArmGlobalVariableHob.h>
UINTN mGlobalVariableBase = 0;
RETURN_STATUS
EFIAPI
ArmPlatformGlobalVariableConstructor (
VOID
)
{
ARM_HOB_GLOBAL_VARIABLE *Hob;
Hob = GetFirstGuidHob (&gArmGlobalVariableGuid);
ASSERT (Hob != NULL);
mGlobalVariableBase = Hob->GlobalVariableBase;
return EFI_SUCCESS;
}
VOID
ArmPlatformGetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
if (mGlobalVariableBase == 0) {
ArmPlatformGlobalVariableConstructor ();
}
CopyMem (Variable, (VOID*)(mGlobalVariableBase + VariableOffset), VariableSize);
}
VOID
ArmPlatformSetGlobalVariable (
IN UINTN VariableOffset,
IN UINTN VariableSize,
OUT VOID* Variable
)
{
if (mGlobalVariableBase == 0) {
ArmPlatformGlobalVariableConstructor ();
}
CopyMem ((VOID*)(mGlobalVariableBase + VariableOffset), Variable, VariableSize);
}
VOID*
ArmPlatformGetGlobalVariableAddress (
IN UINTN VariableOffset
)
{
return (VOID*)(mGlobalVariableBase + VariableOffset);
}
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