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alder_lake_bios/Intel/AlderLake/ClientOneSiliconPkg/Pch/PchInit/Dxe/PchHdaAcpi.c

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/** @file
Initializes the PCH HD Audio ACPI Tables.
@copyright
INTEL CONFIDENTIAL
Copyright 2014 - 2021 Intel Corporation.
The source code contained or described herein and all documents related to the
source code ("Material") are owned by Intel Corporation or its suppliers or
licensors. Title to the Material remains with Intel Corporation or its suppliers
and licensors. The Material may contain trade secrets and proprietary and
confidential information of Intel Corporation and its suppliers and licensors,
and is protected by worldwide copyright and trade secret laws and treaty
provisions. No part of the Material may be used, copied, reproduced, modified,
published, uploaded, posted, transmitted, distributed, or disclosed in any way
without Intel's prior express written permission.
No license under any patent, copyright, trade secret or other intellectual
property right is granted to or conferred upon you by disclosure or delivery
of the Materials, either expressly, by implication, inducement, estoppel or
otherwise. Any license under such intellectual property rights must be
express and approved by Intel in writing.
Unless otherwise agreed by Intel in writing, you may not remove or alter
this notice or any other notice embedded in Materials by Intel or
Intel's suppliers or licensors in any way.
This file contains an 'Intel Peripheral Driver' and is uniquely identified as
"Intel Reference Module" and is licensed for Intel CPUs and chipsets under
the terms of your license agreement with Intel or your vendor. This file may
be modified by the user, subject to additional terms of the license agreement.
@par Specification Reference:
**/
#include <Library/DebugLib.h>
#include <Library/IoLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/PciSegmentLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Protocol/AcpiTable.h>
#include "PchInit.h"
#include <HdAudioConfig.h>
#include <PchConfigHob.h>
#include <Library/PcdLib.h>
#include <Protocol/PchPolicy.h>
#include <HdAudioConfig.h>
#include <IndustryStandard/Pci30.h>
#include <Register/PchRegs.h>
#include <Register/HdaRegs.h>
#include <Library/PchPciBdfLib.h>
#include <Library/PchInfoLib.h>
#include <Library/CpuPlatformLib.h>
#include <Register/Cpuid.h>
#include <PchConfigHob.h>
#include <Library/HobLib.h>
#define NHLT_ACPI_TABLE_SIGNATURE SIGNATURE_32 ('N', 'H', 'L', 'T')
/**
Retrieves address of NHLT table from XSDT/RSDT.
@retval NHLT_ACPI_TABLE* Pointer to NHLT table if found
@retval NULL NHLT could not be found
**/
EFI_ACPI_DESCRIPTION_HEADER *
LocateNhltAcpiTable (
VOID
)
{
EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *Rsdp;
EFI_ACPI_DESCRIPTION_HEADER *Xsdt;
EFI_ACPI_DESCRIPTION_HEADER *Nhlt;
UINTN Index;
UINT64 Data64;
EFI_STATUS Status;
Rsdp = NULL;
Xsdt = NULL;
Nhlt = NULL;
///
/// Find the AcpiSupport protocol returns RSDP (or RSD PTR) address.
///
DEBUG ((DEBUG_INFO, "LocateNhltAcpiTable() Start\n"));
Status = EfiGetSystemConfigurationTable (&gEfiAcpiTableGuid, (VOID *) &Rsdp);
if (EFI_ERROR (Status) || (Rsdp == NULL)) {
DEBUG ((DEBUG_ERROR, "EFI_ERROR or Rsdp == NULL\n"));
return NULL;
}
Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Rsdp->XsdtAddress;
if (Xsdt == NULL || Xsdt->Signature != EFI_ACPI_5_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) {
// If XSDT has not been found, check RSDT
Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Rsdp->RsdtAddress;
if (Xsdt == NULL || Xsdt->Signature != EFI_ACPI_5_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) {
DEBUG ((DEBUG_ERROR, "XSDT/RSDT == NULL or wrong signature\n"));
return NULL;
}
}
for (Index = sizeof (EFI_ACPI_DESCRIPTION_HEADER); Index < Xsdt->Length; Index = Index + sizeof (UINT64)) {
Data64 = *(UINT64 *) ((UINT8 *) Xsdt + Index);
Nhlt = (EFI_ACPI_DESCRIPTION_HEADER *) (UINTN) Data64;
if (Nhlt != NULL && Nhlt->Signature == NHLT_ACPI_TABLE_SIGNATURE) {
break;
}
Nhlt = NULL;
}
if (Nhlt == NULL || Nhlt->Signature != NHLT_ACPI_TABLE_SIGNATURE) {
DEBUG ((DEBUG_ERROR, "Nhlt == NULL or wrong signature\n"));
return NULL;
}
DEBUG ((DEBUG_INFO, "Found NhltTable, Address = 0x%016lx\n", Nhlt));
return Nhlt;
}
/**
Sets NVS ACPI variables for HDAS._DSM and SNDW._DSD accordingly to policy.
@param[in] NhltAcpiTableAddress
@param[in] NhltAcpiTableLength
@param[in] *HdAudioConfigHob
@param[in] *HdAudioDxeConfig
**/
VOID
UpdateHdaAcpiData (
IN UINT64 NhltAcpiTableAddress,
IN UINT32 NhltAcpiTableLength,
IN CONST HDAUDIO_HOB *HdAudioConfigHob,
IN CONST HDAUDIO_DXE_CONFIG *HdAudioDxeConfig
)
{
PCH_CONFIG_HOB *PchConfigHob;
EFI_PEI_HOB_POINTERS HobList;
///
/// Get PCH Config HOB.
///
HobList.Guid = GetFirstGuidHob (&gPchConfigHobGuid);
ASSERT (HobList.Guid != NULL);
PchConfigHob = (PCH_CONFIG_HOB *) GET_GUID_HOB_DATA (HobList.Guid);
mPchNvsAreaProtocol.Area->XTAL = PchConfigHob->HdAudio.AudioXtal;
DEBUG ((DEBUG_INFO, "XTAL NVS Value: %d Hz.\n", mPchNvsAreaProtocol.Area->XTAL));
DEBUG ((DEBUG_INFO, "UpdateHdaAcpiData():\n NHLT Address = 0x%016lx, Length = 0x%08x\n", NhltAcpiTableAddress, NhltAcpiTableLength));
DEBUG ((DEBUG_INFO, " FeatureMask = 0x%08x\n", HdAudioDxeConfig->DspFeatureMask));
mPchNvsAreaProtocol.Area->NHLA = NhltAcpiTableAddress;
mPchNvsAreaProtocol.Area->NHLL = NhltAcpiTableLength;
mPchNvsAreaProtocol.Area->ADFM = HdAudioDxeConfig->DspFeatureMask;
if (HdAudioConfigHob->DspEnable || HdAudioConfigHob->DspUaaCompliance == FALSE) {
mPchNvsAreaProtocol.Area->SWQ0 = HdAudioConfigHob->AudioLinkSndw1 ? 0 : BIT1;
mPchNvsAreaProtocol.Area->SWQ1 = HdAudioConfigHob->AudioLinkSndw2 ? 0 : BIT1;
mPchNvsAreaProtocol.Area->SWQ2 = HdAudioConfigHob->AudioLinkSndw3 ? 0 : BIT1;
mPchNvsAreaProtocol.Area->SWQ3 = HdAudioConfigHob->AudioLinkSndw4 ? 0 : BIT1;
} else {
mPchNvsAreaProtocol.Area->SWQ0 = BIT1;
mPchNvsAreaProtocol.Area->SWQ1 = BIT1;
mPchNvsAreaProtocol.Area->SWQ2 = BIT1;
mPchNvsAreaProtocol.Area->SWQ3 = BIT1;
}
mPchNvsAreaProtocol.Area->SWMC = GetPchHdaMaxSndwLinkNum ();
mPchNvsAreaProtocol.Area->ACS0 = (UINT8)HdAudioDxeConfig->SndwConfig[0].AutonomousClockStop;
mPchNvsAreaProtocol.Area->ACS1 = (UINT8)HdAudioDxeConfig->SndwConfig[1].AutonomousClockStop;
mPchNvsAreaProtocol.Area->ACS2 = (UINT8)HdAudioDxeConfig->SndwConfig[2].AutonomousClockStop;
mPchNvsAreaProtocol.Area->ACS3 = (UINT8)HdAudioDxeConfig->SndwConfig[3].AutonomousClockStop;
mPchNvsAreaProtocol.Area->DAI0 = (UINT8)HdAudioDxeConfig->SndwConfig[0].DataOnActiveIntervalSelect;
mPchNvsAreaProtocol.Area->DAI1 = (UINT8)HdAudioDxeConfig->SndwConfig[1].DataOnActiveIntervalSelect;
mPchNvsAreaProtocol.Area->DAI2 = (UINT8)HdAudioDxeConfig->SndwConfig[2].DataOnActiveIntervalSelect;
mPchNvsAreaProtocol.Area->DAI3 = (UINT8)HdAudioDxeConfig->SndwConfig[3].DataOnActiveIntervalSelect;
mPchNvsAreaProtocol.Area->DOD0 = (UINT8)HdAudioDxeConfig->SndwConfig[0].DataOnDelaySelect;
mPchNvsAreaProtocol.Area->DOD1 = (UINT8)HdAudioDxeConfig->SndwConfig[1].DataOnDelaySelect;
mPchNvsAreaProtocol.Area->DOD2 = (UINT8)HdAudioDxeConfig->SndwConfig[2].DataOnDelaySelect;
mPchNvsAreaProtocol.Area->DOD3 = (UINT8)HdAudioDxeConfig->SndwConfig[3].DataOnDelaySelect;
}
/**
Initialize Intel High Definition Audio ACPI Tables
@retval EFI_SUCCESS The function completed successfully
@retval EFI_LOAD_ERROR ACPI table cannot be installed
@retval EFI_UNSUPPORTED ACPI table not set because DSP is disabled
**/
EFI_STATUS
PchHdAudioAcpiInit (
VOID
)
{
EFI_STATUS Status;
UINT64 HdaPciBase;
CONST HDAUDIO_HOB *HdAudioConfigHob;
PCH_POLICY_PROTOCOL *PchPolicy;
HDAUDIO_DXE_CONFIG *HdAudioDxeConfig;
EFI_ACPI_DESCRIPTION_HEADER *NhltTable;
DEBUG ((DEBUG_INFO, "PchHdAudioAcpiInit() Start\n"));
HdAudioConfigHob = &mPchConfigHob->HdAudio;
///
/// Get PCH Policy Protocol
///
Status = gBS->LocateProtocol (&gPchPolicyProtocolGuid, NULL, (VOID **)&PchPolicy);
ASSERT_EFI_ERROR (Status);
///
/// Get HD Audio DXE Config Block
///
Status = GetConfigBlock ((VOID *)PchPolicy, &gHdAudioDxeConfigGuid, (VOID *)&HdAudioDxeConfig);
ASSERT_EFI_ERROR (Status);
HdaPciBase = HdaPciCfgBase ();
if ((PciSegmentRead16 (HdaPciBase + PCI_VENDOR_ID_OFFSET) == 0xFFFF) || (HdAudioConfigHob->DspEnable == FALSE)) {
// Do not set ACPI tables if HDAudio is Function disabled or DSP is disabled
DEBUG ((DEBUG_INFO, "AudioDSP: Non-HDAudio ACPI Table (NHLT) not set!\n"));
return EFI_UNSUPPORTED;
}
NhltTable = LocateNhltAcpiTable ();
if (NhltTable == NULL) {
return EFI_LOAD_ERROR;
}
UpdateHdaAcpiData ((UINT64) (UINTN) NhltTable, (UINT32) (NhltTable->Length), HdAudioConfigHob, HdAudioDxeConfig);
DEBUG ((DEBUG_INFO, "PchHdAudioAcpiInit() End - Status = %r\n", Status));
return Status;
}
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