/** @file
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PCH HD Audio Sx handler implementation.
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Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "PchInitSmm.h"
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#include <Register/PchRegs.h>
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#include <Register/HdaRegs.h>
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#include <Library/PchPciBdfLib.h>
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GLOBAL_REMOVE_IF_UNREFERENCED UINT64 mHdaPciBase;
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GLOBAL_REMOVE_IF_UNREFERENCED BOOLEAN mHdaCodecSxWakeCapability = FALSE;
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/**
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Updates Codec Sx Wake Capability setting: disabled/enabled
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**/
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VOID
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UpdateHdaCodecSxWakeCapabilitySetting (
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VOID
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)
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{
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mHdaPciBase = HdaPciCfgBase ();
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if ((mPchConfigHob->HdAudio.CodecSxWakeCapability == FALSE) ||
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(PciSegmentRead16 (mHdaPciBase + PCI_VENDOR_ID_OFFSET) == 0xFFFF)) {
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mHdaCodecSxWakeCapability = FALSE;
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} else {
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mHdaCodecSxWakeCapability = TRUE;
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}
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}
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