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- /** @file
- Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #include <Uefi.h>
- #include <Library/BaseMemoryLib.h>
- #include <Library/TbtCommonLib.h>
- #include <Library/DxeTbtPolicyLib.h>
- #include <TbtBoardInfo.h>
- #include <Protocol/DxeTbtPolicy.h>
- #include <Protocol/TbtNvsArea.h>
- #include <Library/DebugLib.h>
- #include <Library/HobLib.h>
- #include <Library/UefiBootServicesTableLib.h>
- #include <Library/UefiRuntimeServicesTableLib.h>
- #include <Library/UefiLib.h>
- #include <Uefi/UefiSpec.h>
- #include <Library/PcdLib.h>
- #include <Library/AslUpdateLib.h>
- GLOBAL_REMOVE_IF_UNREFERENCED TBT_NVS_AREA_PROTOCOL mTbtNvsAreaProtocol;
- GLOBAL_REMOVE_IF_UNREFERENCED TBT_INFO_HOB *gTbtInfoHob = NULL;
- /**
- TBT NVS Area Initialize
- **/
- VOID
- TbtNvsAreaInit (
- IN VOID **mTbtNvsAreaPtr
- )
- {
- UINTN Pages;
- EFI_PHYSICAL_ADDRESS Address;
- EFI_STATUS Status;
- TBT_NVS_AREA_PROTOCOL *TbtNvsAreaProtocol;
- DXE_TBT_POLICY_PROTOCOL *DxeTbtConfig;
- DEBUG ((DEBUG_INFO, "TbtNvsAreaInit Start\n"));
- Status = gBS->LocateProtocol (
- &gDxeTbtPolicyProtocolGuid,
- NULL,
- (VOID **) &DxeTbtConfig
- );
- ASSERT_EFI_ERROR (Status);
- Pages = EFI_SIZE_TO_PAGES (sizeof (TBT_NVS_AREA));
- Address = 0xffffffff; // allocate address below 4G.
- Status = gBS->AllocatePages (
- AllocateMaxAddress,
- EfiACPIMemoryNVS,
- Pages,
- &Address
- );
- ASSERT_EFI_ERROR (Status);
- *mTbtNvsAreaPtr = (VOID *) (UINTN) Address;
- SetMem (*mTbtNvsAreaPtr, sizeof (TBT_NVS_AREA), 0);
- //
- // TBTNvsAreaProtocol default value init here
- //
- TbtNvsAreaProtocol = (TBT_NVS_AREA_PROTOCOL *) &Address;
- //
- // Initialize default values
- //
- TbtNvsAreaProtocol->Area->WAKFinished = 0;
- TbtNvsAreaProtocol->Area->DiscreteTbtSupport = ((gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn == 1 ) ? TRUE : FALSE);
- TbtNvsAreaProtocol->Area->TbtAcpiRemovalSupport = 0;
- TbtNvsAreaProtocol->Area->TbtGpioFilter = (UINT8) DxeTbtConfig->TbtCommonConfig.Gpio5Filter;
- // TbtNvsAreaProtocol->Area->TrOsup = (UINT8) DxeTbtConfig->TbtCommonConfig.TrA0OsupWa;
- TbtNvsAreaProtocol->Area->TbtFrcPwrEn = gTbtInfoHob->DTbtCommonConfig.Gpio3ForcePwr;
- TbtNvsAreaProtocol->Area->TbtAspm = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtAspm;
- // TbtNvsAreaProtocol->Area->TbtL1SubStates = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtL1SubStates;
- TbtNvsAreaProtocol->Area->TbtSetClkReq = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtSetClkReq;
- TbtNvsAreaProtocol->Area->TbtLtr = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtLtr;
- // TbtNvsAreaProtocol->Area->TbtPtm = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtPtm;
- TbtNvsAreaProtocol->Area->TbtWakeupSupport = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtWakeupSupport;
- TbtNvsAreaProtocol->Area->TbtAcDcSwitch = (UINT8) DxeTbtConfig->TbtCommonConfig.TbtAcDcSwitch;
- TbtNvsAreaProtocol->Area->Rtd3TbtSupport = (UINT8) DxeTbtConfig->TbtCommonConfig.Rtd3Tbt; // TBT RTD3 Enable.
- TbtNvsAreaProtocol->Area->Rtd3TbtOffDelay = (UINT16) DxeTbtConfig->TbtCommonConfig.Rtd3TbtOffDelay; // TBT RTD3 Off delay in ms.
- TbtNvsAreaProtocol->Area->Rtd3TbtClkReq = (UINT8) DxeTbtConfig->TbtCommonConfig.Rtd3TbtClkReq; // TBT RTD3 ClkReq Mask Enable.
- TbtNvsAreaProtocol->Area->Rtd3TbtClkReqDelay = (UINT16) DxeTbtConfig->TbtCommonConfig.Rtd3TbtClkReqDelay; // TBT RTD3 ClkReq mask delay in ms.
- TbtNvsAreaProtocol->Area->TbtWin10Support = (UINT8) DxeTbtConfig->TbtCommonConfig.Win10Support; // TBT FW Execution Mode
- //
- // DTBT Controller 1
- //
- TbtNvsAreaProtocol->Area->DTbtControllerEn0 = gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn;
- TbtNvsAreaProtocol->Area->RootportSelected0 = gTbtInfoHob-> DTbtControllerConfig.PcieRpNumber;
- TbtNvsAreaProtocol->Area->RootportSelected0Type = gTbtInfoHob-> DTbtControllerConfig.Type;
- TbtNvsAreaProtocol->Area->RootportEnabled0 = gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn;
- TbtNvsAreaProtocol->Area->TbtFrcPwrGpioNo0 = gTbtInfoHob-> DTbtControllerConfig.ForcePwrGpio.GpioPad;
- TbtNvsAreaProtocol->Area->TbtFrcPwrGpioLevel0 = gTbtInfoHob-> DTbtControllerConfig.ForcePwrGpio.GpioLevel;
- TbtNvsAreaProtocol->Area->TbtCioPlugEventGpioNo0 = gTbtInfoHob-> DTbtControllerConfig.CioPlugEventGpio.GpioPad;
- TbtNvsAreaProtocol->Area->TbtPcieRstGpioNo0 = gTbtInfoHob-> DTbtControllerConfig.PcieRstGpio.GpioPad;
- TbtNvsAreaProtocol->Area->TbtPcieRstGpioLevel0 = gTbtInfoHob-> DTbtControllerConfig.PcieRstGpio.GpioLevel;
- TbtNvsAreaProtocol->Area->TBtCommonGpioSupport = gTbtInfoHob->DTbtCommonConfig.DTbtSharedGpioConfiguration;
- DEBUG ((DEBUG_INFO, "TbtNvsAreaInit End\n"));
- }
- /**
- This function gets registered as a callback to patch TBT ASL code
- @param[in] Event - A pointer to the Event that triggered the callback.
- @param[in] Context - A pointer to private data registered with the callback function.
- can we put this also in read me
- **/
- VOID
- EFIAPI
- TbtAcpiEndOfDxeCallback (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
- {
- EFI_STATUS Status;
- UINT32 Address;
- UINT16 Length;
- UINT32 Signature;
- Status = InitializeAslUpdateLib ();
- ASSERT_EFI_ERROR (Status);
- Address = (UINT32) (UINTN) mTbtNvsAreaProtocol.Area;
- Length = (UINT16) sizeof (TBT_NVS_AREA);
- DEBUG ((DEBUG_INFO, "Patch TBT NvsAreaAddress: TBT NVS Address %x Length %x\n", Address, Length));
- Status = UpdateNameAslCode (SIGNATURE_32 ('T','N','V','B'), &Address, sizeof (Address));
- ASSERT_EFI_ERROR (Status);
- Status = UpdateNameAslCode (SIGNATURE_32 ('T','N','V','L'), &Length, sizeof (Length));
- ASSERT_EFI_ERROR (Status);
- if (gTbtInfoHob != NULL) {
- if (gTbtInfoHob-> DTbtControllerConfig.DTbtControllerEn == 1) {
- if (gTbtInfoHob-> DTbtControllerConfig.CioPlugEventGpio.AcpiGpeSignaturePorting == TRUE) {
- DEBUG ((DEBUG_INFO, "Patch ATBT Method Name\n"));
- Signature = gTbtInfoHob-> DTbtControllerConfig.CioPlugEventGpio.AcpiGpeSignature;
- Status = UpdateNameAslCode (SIGNATURE_32 ('A','T','B','T'), &Signature, sizeof (Signature));
- ASSERT_EFI_ERROR (Status);
- }
- }
- }
- return;
- }
- /**
- Initialize Thunderbolt(TM) SSDT ACPI tables
- @retval EFI_SUCCESS ACPI tables are initialized successfully
- @retval EFI_NOT_FOUND ACPI tables not found
- **/
- EFI_STATUS
- EFIAPI
- TbtDxeEntryPoint (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
- {
- EFI_STATUS Status;
- EFI_HANDLE Handle;
- // EFI_EVENT EndOfDxeEvent;
- DEBUG ((DEBUG_INFO, "TbtDxeEntryPoint \n"));
- //
- // Get TBT INFO HOB
- //
- gTbtInfoHob = (TBT_INFO_HOB *) GetFirstGuidHob (&gTbtInfoHobGuid);
- if (gTbtInfoHob == NULL) {
- return EFI_NOT_FOUND;
- }
- InstallTbtPolicy (ImageHandle);
- //
- // Update DXE TBT Policy
- //
- UpdateTbtPolicyCallback ();
- //
- // Print DXE TBT Policy
- //
- TbtPrintDxePolicyConfig ();
- //
- // Initialize Tbt Nvs Area
- //
- TbtNvsAreaInit ((VOID **) &mTbtNvsAreaProtocol.Area);
- //
- // [ACPI] Thunderbolt ACPI table
- //
- Handle = NULL;
- Status = gBS->InstallMultipleProtocolInterfaces (
- &Handle,
- &gTbtNvsAreaProtocolGuid,
- &mTbtNvsAreaProtocol,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
- //
- // Register an end of DXE event for TBT ACPI to do some patch can be put as description
- //
- /**
- Status = gBS->CreateEventEx (
- EVT_NOTIFY_SIGNAL,
- TPL_CALLBACK,
- TbtAcpiEndOfDxeCallback,
- NULL,
- &gEfiEndOfDxeEventGroupGuid,
- &EndOfDxeEvent
- );
- ASSERT_EFI_ERROR (Status);
- **/
- return EFI_SUCCESS;
- }
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