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/** @file
Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#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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