/** @file
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Copyright (c) 2018 - 2020, 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 <Uefi.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/TbtCommonLib.h>
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#include <Library/DxeTbtPolicyLib.h>
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#include <TbtBoardInfo.h>
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#include <Protocol/DxeTbtPolicy.h>
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#include <Protocol/TbtNvsArea.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Uefi/UefiSpec.h>
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#include <Library/PcdLib.h>
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#include <Library/AslUpdateLib.h>
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GLOBAL_REMOVE_IF_UNREFERENCED TBT_NVS_AREA_PROTOCOL mTbtNvsAreaProtocol;
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GLOBAL_REMOVE_IF_UNREFERENCED TBT_INFO_HOB *gTbtInfoHob = NULL;
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/**
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TBT NVS Area Initialize
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**/
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VOID
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TbtNvsAreaInit (
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IN VOID **mTbtNvsAreaPtr
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)
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{
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UINTN Pages;
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EFI_PHYSICAL_ADDRESS Address;
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EFI_STATUS Status;
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TBT_NVS_AREA_PROTOCOL *TbtNvsAreaProtocol;
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DXE_TBT_POLICY_PROTOCOL *DxeTbtConfig;
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DEBUG ((DEBUG_INFO, "TbtNvsAreaInit Start\n"));
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Status = gBS->LocateProtocol (
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&gDxeTbtPolicyProtocolGuid,
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NULL,
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(VOID **) &DxeTbtConfig
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);
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ASSERT_EFI_ERROR (Status);
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Pages = EFI_SIZE_TO_PAGES (sizeof (TBT_NVS_AREA));
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Address = 0xffffffff; // allocate address below 4G.
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Status = gBS->AllocatePages (
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AllocateMaxAddress,
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EfiACPIMemoryNVS,
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Pages,
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&Address
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);
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ASSERT_EFI_ERROR (Status);
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*mTbtNvsAreaPtr = (VOID *) (UINTN) Address;
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SetMem (*mTbtNvsAreaPtr, sizeof (TBT_NVS_AREA), 0);
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//
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// TBTNvsAreaProtocol default value init here
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//
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TbtNvsAreaProtocol = (TBT_NVS_AREA_PROTOCOL *) &Address;
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//
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// Initialize default values
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//
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TbtNvsAreaProtocol->Area->WAKFinished = 0;
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TbtNvsAreaProtocol->Area->DiscreteTbtSupport = ((gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn == 1 ) ? TRUE : FALSE);
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TbtNvsAreaProtocol->Area->TbtAcpiRemovalSupport = 0;
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TbtNvsAreaProtocol->Area->TbtGpioFilter = (UINT8) DxeTbtConfig->TbtCommonConfig.Gpio5Filter;
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// TbtNvsAreaProtocol->Area->TrOsup = (UINT8) DxeTbtConfig->TbtCommonConfig.TrA0OsupWa;
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TbtNvsAreaProtocol->Area->TbtFrcPwrEn = gTbtInfoHob->DTbtCommonConfig.Gpio3ForcePwr;
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TbtNvsAreaProtocol->Area->TbtAspm = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtAspm;
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// TbtNvsAreaProtocol->Area->TbtL1SubStates = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtL1SubStates;
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TbtNvsAreaProtocol->Area->TbtSetClkReq = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtSetClkReq;
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TbtNvsAreaProtocol->Area->TbtLtr = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtLtr;
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// TbtNvsAreaProtocol->Area->TbtPtm = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtPtm;
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TbtNvsAreaProtocol->Area->TbtWakeupSupport = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtWakeupSupport;
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TbtNvsAreaProtocol->Area->TbtAcDcSwitch = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtAcDcSwitch;
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TbtNvsAreaProtocol->Area->Rtd3TbtSupport = (UINT8) DxeTbtConfig->TbtCommonConfig.Rtd3Tbt; // TBT RTD3 Enable.
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TbtNvsAreaProtocol->Area->Rtd3TbtOffDelay = (UINT16) DxeTbtConfig->TbtCommonConfig.Rtd3TbtOffDelay; // TBT RTD3 Off delay in ms.
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TbtNvsAreaProtocol->Area->Rtd3TbtClkReq = (UINT8) DxeTbtConfig->TbtCommonConfig.Rtd3TbtClkReq; // TBT RTD3 ClkReq Mask Enable.
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TbtNvsAreaProtocol->Area->Rtd3TbtClkReqDelay = (UINT16) DxeTbtConfig->TbtCommonConfig.Rtd3TbtClkReqDelay; // TBT RTD3 ClkReq mask delay in ms.
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TbtNvsAreaProtocol->Area->TbtWin10Support = (UINT8) DxeTbtConfig->TbtCommonConfig.Win10Support; // TBT FW Execution Mode
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//
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// DTBT Controller 1
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//
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TbtNvsAreaProtocol->Area->DTbtControllerEn0 = gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn;
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TbtNvsAreaProtocol->Area->RootportSelected0 = gTbtInfoHob-> DTbtControllerConfig.PcieRpNumber;
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TbtNvsAreaProtocol->Area->RootportSelected0Type = gTbtInfoHob-> DTbtControllerConfig.Type;
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TbtNvsAreaProtocol->Area->RootportEnabled0 = gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn;
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TbtNvsAreaProtocol->Area->TbtFrcPwrGpioNo0 = gTbtInfoHob-> DTbtControllerConfig.ForcePwrGpio.GpioPad;
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TbtNvsAreaProtocol->Area->TbtFrcPwrGpioLevel0 = gTbtInfoHob-> DTbtControllerConfig.ForcePwrGpio.GpioLevel;
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TbtNvsAreaProtocol->Area->TbtCioPlugEventGpioNo0 = gTbtInfoHob-> DTbtControllerConfig.CioPlugEventGpio.GpioPad;
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TbtNvsAreaProtocol->Area->TbtPcieRstGpioNo0 = gTbtInfoHob-> DTbtControllerConfig.PcieRstGpio.GpioPad;
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TbtNvsAreaProtocol->Area->TbtPcieRstGpioLevel0 = gTbtInfoHob-> DTbtControllerConfig.PcieRstGpio.GpioLevel;
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TbtNvsAreaProtocol->Area->TBtCommonGpioSupport = gTbtInfoHob->DTbtCommonConfig.DTbtSharedGpioConfiguration;
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DEBUG ((DEBUG_INFO, "TbtNvsAreaInit End\n"));
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}
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/**
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This function gets registered as a callback to patch TBT ASL code
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@param[in] Event - A pointer to the Event that triggered the callback.
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@param[in] Context - A pointer to private data registered with the callback function.
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can we put this also in read me
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**/
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VOID
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EFIAPI
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TbtAcpiEndOfDxeCallback (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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EFI_STATUS Status;
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UINT32 Address;
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UINT16 Length;
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UINT32 Signature;
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Address = (UINT32) (UINTN) mTbtNvsAreaProtocol.Area;
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Length = (UINT16) sizeof (TBT_NVS_AREA);
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DEBUG ((DEBUG_INFO, "Patch TBT NvsAreaAddress: TBT NVS Address %x Length %x\n", Address, Length));
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Status = UpdateNameAslCode (SIGNATURE_32 ('T','N','V','B'), &Address, sizeof (Address));
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ASSERT_EFI_ERROR (Status);
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Status = UpdateNameAslCode (SIGNATURE_32 ('T','N','V','L'), &Length, sizeof (Length));
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ASSERT_EFI_ERROR (Status);
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if (gTbtInfoHob != NULL) {
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if (gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn == 1) {
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if (gTbtInfoHob-> DTbtControllerConfig.CioPlugEventGpio.AcpiGpeSignaturePorting == TRUE) {
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DEBUG ((DEBUG_INFO, "Patch ATBT Method Name\n"));
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Signature = gTbtInfoHob-> DTbtControllerConfig.CioPlugEventGpio.AcpiGpeSignature;
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Status = UpdateNameAslCode (SIGNATURE_32 ('A','T','B','T'), &Signature, sizeof (Signature));
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ASSERT_EFI_ERROR (Status);
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}
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}
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}
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return;
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}
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/**
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Initialize Thunderbolt(TM) SSDT ACPI tables
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@retval EFI_SUCCESS ACPI tables are initialized successfully
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@retval EFI_NOT_FOUND ACPI tables not found
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**/
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EFI_STATUS
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EFIAPI
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TbtDxeEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE Handle;
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// EFI_EVENT EndOfDxeEvent;
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DEBUG ((DEBUG_INFO, "TbtDxeEntryPoint \n"));
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//
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// Get TBT INFO HOB
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//
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gTbtInfoHob = (TBT_INFO_HOB *) GetFirstGuidHob (&gTbtInfoHobGuid);
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if (gTbtInfoHob == NULL) {
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return EFI_NOT_FOUND;
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}
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InstallTbtPolicy (ImageHandle);
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//
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// Update DXE TBT Policy
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//
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UpdateTbtPolicyCallback ();
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//
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// Print DXE TBT Policy
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//
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TbtPrintDxePolicyConfig ();
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//
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// Initialize Tbt Nvs Area
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//
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TbtNvsAreaInit ((VOID **) &mTbtNvsAreaProtocol.Area);
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//
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// [ACPI] Thunderbolt ACPI table
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//
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Handle = NULL;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&Handle,
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&gTbtNvsAreaProtocolGuid,
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&mTbtNvsAreaProtocol,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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//
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// Register an end of DXE event for TBT ACPI to do some patch can be put as description
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//
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/**
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Status = gBS->CreateEventEx (
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EVT_NOTIFY_SIGNAL,
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TPL_CALLBACK,
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TbtAcpiEndOfDxeCallback,
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NULL,
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&gEfiEndOfDxeEventGroupGuid,
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&EndOfDxeEvent
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);
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ASSERT_EFI_ERROR (Status);
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**/
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return EFI_SUCCESS;
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}
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