58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
/** @file
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DXE Chipset Services Library.
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Update ACPI variable set called upon AcpiS3Save driver entry and S3 ready. Chipset can use it to
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update the content of customized ACPI_VARIABLE_SET variable to compliant with individual chipset RC
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;***************************************************************************
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;* Copyright (c) 2012 - 2014, Insyde Software Corp. All Rights Reserved.
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;*
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;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
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;* transmit, broadcast, present, recite, release, license or otherwise exploit
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;* any part of this publication in any form, by any means, without the prior
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;* written permission of Insyde Software Corporation.
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;*
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;******************************************************************************
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*/
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#include <PiDxe.h>
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#include <Library/DebugLib.h>
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#include <Protocol/H2ODxeChipsetServices.h>
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//
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// Global Variables (This Source File Only)
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//
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extern H2O_CHIPSET_SERVICES_PROTOCOL *mChipsetSvc;
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/**
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Update ACPI variable set called upon AcpiS3Save driver entry and S3 ready. Chipset can use it to
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update the content of customized ACPI_VARIABLE_SET variable to compliant with individual chipset RC
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@param[in] IsS3Ready Indicates the current phase is initial or S3 ready
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@param[in] S3AcpiReservedMemorySize The size of S3AcpiReservedMemory
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@retval EFI_SUCCESS Function returns successfully
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@retval EFI_UNSUPPORTED Use ordinary path to update standard ACPI_VARIABLE_SET content
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*/
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EFI_STATUS
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EFIAPI
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DxeCsSvcUpdateAcpiVariableSet (
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IN BOOLEAN IsS3Ready,
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IN UINT32 S3AcpiReservedMemorySize
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)
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{
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//
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// Verify that the protocol interface structure contains the function
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// pointer and whether that function pointer is non-NULL. If not, return
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// an error.
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//
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if (mChipsetSvc == NULL ||
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mChipsetSvc->Size < (OFFSET_OF (H2O_CHIPSET_SERVICES_PROTOCOL, UpdateAcpiVariableSet) + sizeof (VOID*)) ||
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mChipsetSvc->UpdateAcpiVariableSet == NULL ||
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S3AcpiReservedMemorySize == 0) {
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DEBUG ((EFI_D_ERROR, "H2O DXE Chipset Services can not be found or member UpdateAcpiVariableSet() isn't implement!\n"));
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return EFI_UNSUPPORTED;
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}
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return mChipsetSvc->UpdateAcpiVariableSet (IsS3Ready, S3AcpiReservedMemorySize);
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}
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