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alder_lake_bios/Intel/AlderLake/AlderLakePlatSamplePkg/Features/Pct/PlatformConfigToolDataParser.c

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/** @file
Source code for Platform Configuration Tool in Pre/Post Mem.
@copyright
INTEL CONFIDENTIAL
Copyright 2019 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 a 'Sample Driver' and is licensed as such under the terms
of your license agreement with Intel or your vendor. This file may be modified
by the user, subject to the additional terms of the license agreement.rporation.
@par Specification Reference:
**/
#include "PlatformConfigToolInit.h"
#include "PlatformConfigToolStructures.h"
CHAR8 PreMemStr[] = "Pre-Mem";
CHAR8 PostMemStr[] = "Post-Mem";
/**
PctPeimDiscoveryPpiCallback
**/
EFI_STATUS
EFIAPI
PctPeimDiscoveryPpiCallback (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
);
static EFI_PEI_NOTIFY_DESCRIPTOR mPctPeimNotifyCallback = {
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiPeiMasterBootModePpiGuid,
(EFI_PEIM_NOTIFY_ENTRY_POINT)PctPeimDiscoveryPpiCallback
};
/**
GetPctDataType
Get enumerated PCT data type
@param BoardPointer Pointer to EFI_GUID in the data header
@param BoardInfoEnd Pointer to UINTN to store PCT data typer
@retval Status EFI_SUCCESS - Found PCT data
EFI_NOT_FOUND - Didn't find PCT data
**/
EFI_STATUS
GetPctDataType (
IN EFI_GUID *BoardPointer,
IN OUT UINTN *PctDataType
)
{
UINTN Index;
EFI_STATUS Status;
Status = EFI_NOT_FOUND;
for (Index = 0;
(Index < PctConfigDataTypeGuidsCount) &&
(CompareGuid (BoardPointer, PctConfigDataTypeGuids[Index].Guid) == FALSE);
Index++
);
if (Index < PctConfigDataTypeGuidsCount) {
*PctDataType = PctConfigDataTypeGuids[Index].PctDataType;
Status = EFI_SUCCESS;
}
return Status;
}
/**
HandlePrePostMemGpios
Get all data associated with this board.
@param DataPointer Start of header of data, roving pointer
@param PctDataType Data type
@retval Status EFI_SUCCESS - Found PCT data
EFI_NOT_FOUND - Didn't find PCT data
EFI_INVALID_PARAMETER - SPCD not big enough for data
**/
EFI_STATUS
HandlePrePostMemGpios (
IN OUT UINT8 **DataPointer,
IN UINTN PctDataType
)
{
UINTN Count;
EFI_STATUS Status;
UINTN DataSize;
GPIO_INIT_CONFIG *SpcdPointer;
CHAR8 *ErrString;
Status = EFI_SUCCESS;
if (PctDataType == PctPreMemGpio) {
ErrString = PreMemStr;
} else {
ErrString = PostMemStr;
}
Count = ((PCT_GPIO_BLOCK_HDR *)*DataPointer)->Count;
*DataPointer += sizeof (PCT_GPIO_BLOCK_HDR);
if (Count > 0) {
DataSize = (Count * sizeof (GPIO_INIT_CONFIG)) + sizeof (GPIO_PAD);
//
// Transfer data to structured PCD
//
if (PctDataType == PctPreMemGpio) {
Status = PcdSetExPtrS (
&gBoardModuleTokenSpaceGuid,
PcdBoardGpioTablePreMem,
&DataSize,
*DataPointer
);
SpcdPointer = PcdGetPtr (PcdBoardGpioTablePreMem);
} else {
Status = PcdSetExPtrS (
&gBoardModuleTokenSpaceGuid,
PcdBoardGpioTable,
&DataSize,
*DataPointer
);
SpcdPointer = PcdGetPtr (PcdBoardGpioTable);
}
if (Status == EFI_SUCCESS) {
//
// End GPIOs with a zero GpioPad
//
SpcdPointer = (GPIO_INIT_CONFIG *)((UINT8 *)SpcdPointer + (Count * sizeof (GPIO_INIT_CONFIG)));
SpcdPointer->GpioPad = 0;
OutGpios ((UINT8 *)*DataPointer, Count);
OutGpiosVerbose ((UINT8 *)*DataPointer, Count);
} else {
DEBUG ((DEBUG_ERROR, "%a: Not enough space in %a GPIO SPCD\n", __FUNCTION__, ErrString));
}
} else {
Status = EFI_NOT_FOUND;
DEBUG ((DEBUG_ERROR, "%a: PCT %a GPIO count == 0\n", __FUNCTION__, ErrString));
}
//
// Update data pointer
//
*DataPointer += Count * sizeof (GPIO_INIT_CONFIG);
return Status;
}
/**
RetrieveBoardData
Get all data associated with this board.
@param DataPointer Pointer to PCT DataType structure that contains
PCT data type guid
@param BoardInfoEnd End address board data
@retval Status EFI_SUCCESS - Found PCT data
EFI_NOT_FOUND - Didn't find PCT data
**/
EFI_STATUS
RetrieveBoardData (
IN UINT8 *DataPointer,
IN UINT8 *BoardSectionInfoEnd
)
{
UINT8 *DataStart;
UINTN DataSize;
EFI_STATUS Status;
UINTN Index;
UINTN PctDataType;
UINT16 Count;
ASSERT (DataPointer != NULL);
ASSERT (BoardSectionInfoEnd != NULL);
ASSERT ((BoardSectionInfoEnd - DataPointer) > 0);
//
// Initialize parameters
//
if ((DataPointer == NULL) ||
(BoardSectionInfoEnd == NULL) ||
((BoardSectionInfoEnd - DataPointer) == 0)
) {
Status = EFI_INVALID_PARAMETER;
} else {
Status = EFI_SUCCESS;
}
//
// Collect all PCT data for this board
//
while ((Status == EFI_SUCCESS) && (DataPointer < BoardSectionInfoEnd)) {
DataStart = DataPointer;
DEBUG ((DEBUG_INFO, "PCT_DBG: DataPointer = %p, BoardSectionInfoEnd = %p\n", DataPointer, BoardSectionInfoEnd));
//
// Retrieve data type for this data set
//
Status = GetPctDataType ((EFI_GUID *)DataPointer, &PctDataType);
if (Status == EFI_SUCCESS) {
DEBUG ((DEBUG_INFO, "PCT_DBG: Data Type = %d\n", PctDataType));
switch (PctDataType) {
//
// Find correct board information for Pre Mem GPIOs
//
case PctPreMemGpio:
DEBUG ((DEBUG_INFO, "PCT_DBG: Handling Premem GPIOs, PctRevision %d.%d.%d\n",
(((PCT_ACPI_BLOCK_HDR *)DataPointer))->PctRevision[0],
(((PCT_ACPI_BLOCK_HDR *)DataPointer))->PctRevision[1],
(((PCT_ACPI_BLOCK_HDR *)DataPointer))->PctRevision[2]
));
Status = HandlePrePostMemGpios (
&DataPointer,
PctDataType
);
break;
//
// Find correct board information for Pre Mem GPIOs
//
case PctPostMemGpio:
DEBUG ((DEBUG_INFO, "PCT_DBG: Handling Postmem GPIOs, PctRevision %d.%d.%d\n",
(((PCT_ACPI_BLOCK_HDR *)DataPointer))->PctRevision[0],
(((PCT_ACPI_BLOCK_HDR *)DataPointer))->PctRevision[1],
(((PCT_ACPI_BLOCK_HDR *)DataPointer))->PctRevision[2]
));
Status = HandlePrePostMemGpios (
&DataPointer,
PctDataType
);
break;
//
// Find correct board for ACPI information
//
case PctAcpi:
DEBUG ((DEBUG_INFO, "PCT_DBG: Handling ACPI, PctRevision %d.%d.%d\n",
((PCT_ACPI_BLOCK_HDR *)DataPointer)->PctRevision[0],
((PCT_ACPI_BLOCK_HDR *)DataPointer)->PctRevision[1],
((PCT_ACPI_BLOCK_HDR *)DataPointer)->PctRevision[2]
));
Count = ((PCT_ACPI_BLOCK_HDR *)DataPointer)->Count;
if (Count > 0) {
DataPointer += sizeof (PCT_ACPI_BLOCK_HDR);
//
// Compute size of this data block
//
DataSize = 0;
for (Index = 0; Index < Count; Index++) {
DataSize += ((EFI_ACPI_SDT_HEADER *)DataPointer)->Length;
DataPointer += ((EFI_ACPI_SDT_HEADER *)DataPointer)->Length;
}
DEBUG ((DEBUG_INFO, "PCT_DBG: ACPI guid = %g, DataStart = %p, DataPointer = %p, Count = %d, DataSize = 0x%x\n",
(&((PCT_ACPI_BLOCK_HDR *)DataStart)->Guid),
DataStart,
DataPointer,
Count,
DataSize + sizeof (PCT_ACPI_BLOCK_HDR)
));
//
// ACPI out to structured PCD
//
Status = PcdSetExPtrS (
&gBoardModuleTokenSpaceGuid,
PcdBoardAcpiData,
&DataSize,
DataStart + sizeof (PCT_ACPI_BLOCK_HDR)
);
if (Status != EFI_SUCCESS) {
DEBUG ((DEBUG_ERROR, "%a: Not enough space in ACPI SPCD\n", __FUNCTION__));
}
} else { // Count = 0
Status = EFI_NOT_FOUND;
DEBUG ((DEBUG_ERROR, "%a: PCT ACPI SSDT count == 0\n", __FUNCTION__));
}
break;
default:
break;
} // switch (PctDataType)
} else { // Data not found
Status = EFI_NOT_FOUND;
DEBUG ((DEBUG_ERROR, "%a: Unrecognized PCT data type\n", __FUNCTION__));
}
} // While collecting data
return Status;
}
/**
PlatformConfigToolEntry
Notify the presence of the Platform Configuration Tool
presence.
@retval Status EFI_SUCCESS - Successful notify
**/
EFI_STATUS
PlatformConfigToolEntry (
IN EFI_PEI_FILE_HANDLE DriverFileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
DEBUG ((DEBUG_INFO, "PCT_DBG: Entering %a\n", __FUNCTION__));
Status = PeiServicesNotifyPpi (&mPctPeimNotifyCallback);
DEBUG ((DEBUG_INFO, "PCT_DBG %a: PeiServicesNotifyPpi() Status = %r\n", __FUNCTION__, Status));
DEBUG ((DEBUG_INFO, "PCT_DBG: Exiting %a\n", __FUNCTION__));
return EFI_SUCCESS;
}
/**
PctPeimDiscovereyPpiCallback
Checks for the presence of Platform Configuration Tool
configuration data in the FVs and moves that data to SPCDs.
@retval Status EFI_SUCCESS - found board data
**/
EFI_STATUS
EFIAPI
PctPeimDiscoveryPpiCallback (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
EFI_STATUS PctStatus;
EFI_STATUS FvStatus;
UINTN FvInstance;
UINTN FsInstance;
EFI_PEI_FV_HANDLE VolumeHandle;
EFI_PEI_FILE_HANDLE FileHandle;
EFI_COMMON_SECTION_HEADER *SectionHeaderPointer;
BOOLEAN BoardIdMatch;;
UINTN Index;
UINTN PctFilesFound;
UINT8 *BoardSectionPointer;
UINT8 *BoardSectionInfoEnd;
UINT16 BoardId;
UINT32 AuthenticationStatus;
UINT32 SectionSize;
//
// Initialize variables
//
FvInstance = 0;
PctStatus = EFI_SUCCESS;
FvStatus = EFI_SUCCESS;
PctFilesFound = 0;
//
// Get board ID
//
BoardId = PcdGet16 (PcdBoardId);
if ((BoardId == BoardIdReserved) || (BoardId == BoardIdUnknown1)) {
DEBUG ((DEBUG_INFO, "PCT_DBG: Exiting %a\n", __FUNCTION__));
return EFI_SUCCESS;
}
DEBUG ((DEBUG_INFO, "PCT_DBG: Entering %a\n", __FUNCTION__));
DEBUG ((DEBUG_INFO, "PCT_DBG %a: PCD Board ID = 0x%x\n", __FUNCTION__, BoardId));
do {
//
// Search for firmware volume
//
FvStatus = PeiServicesFfsFindNextVolume (FvInstance++, &VolumeHandle);
DEBUG ((DEBUG_INFO, "PCT_DBG %a: Found a volume? %r\n", __FUNCTION__, FvStatus));
if (FvStatus == EFI_SUCCESS) {
//
// Search for PCT files
//
for (Index = 0; Index < PctConfigFileCount; Index++) {
PctStatus = PeiServicesFfsFindFileByName (
PctConfigFileGuids[Index],
VolumeHandle,
&FileHandle
);
DEBUG ((DEBUG_INFO, "PCT_DBG %a: Found a pct file? %r, guid = %g\n", __FUNCTION__, PctStatus, PctConfigFileGuids[Index]));
if (PctStatus == EFI_SUCCESS) {
//
// Read sections, Find board match
//
BoardIdMatch = FALSE;
FsInstance = 0;
do {
PctStatus = PeiServicesFfsFindSectionData3 (
EFI_SECTION_RAW,
FsInstance++,
FileHandle,
(VOID **)&BoardSectionPointer,
&AuthenticationStatus
);
if (PctStatus == EFI_SUCCESS) {
DEBUG ((DEBUG_INFO, "PCT_DBG %a: PCT Board id = 0x%x\n", __FUNCTION__, ((PCT_SECTION_HEADER *)BoardSectionPointer)->BoardId));
if (((PCT_SECTION_HEADER *)BoardSectionPointer)->BoardId == BoardId) {
//
// Board match
//
SectionHeaderPointer = (EFI_COMMON_SECTION_HEADER *)(BoardSectionPointer - sizeof (EFI_COMMON_SECTION_HEADER));
SectionSize = SECTION_SIZE (SectionHeaderPointer);
BoardSectionInfoEnd = (UINT8 *)(((UINT8 *)SectionHeaderPointer) + SectionSize);
if (SectionSize > (sizeof (EFI_COMMON_SECTION_HEADER) + sizeof (PCT_SECTION_HEADER))) {
//
// PCT data found
//
BoardIdMatch = TRUE;
BoardSectionPointer += sizeof (PCT_SECTION_HEADER);
PctStatus = RetrieveBoardData (BoardSectionPointer, BoardSectionInfoEnd);
if (PctStatus == EFI_SUCCESS) {
++PctFilesFound;
}
} // If board ID match
DEBUG ((DEBUG_INFO, "PCT_DBG %a: SectionHeaderPointer = %p, BoardSectionPointer = %p, ",
__FUNCTION__, SectionHeaderPointer, BoardSectionPointer));
DEBUG ((DEBUG_INFO, "BoardSectionInfoEnd = %p, section size = 0x%x\n",
BoardSectionInfoEnd, SectionSize));
OutData ((UINT8 *)SectionHeaderPointer, (UINT16)SectionSize);
} // Board ID check
} // Couldn't find next file section
} while ((BoardIdMatch == FALSE) && (PctStatus == EFI_SUCCESS)); //Board ID match search
} // Couldn't find PCT files
} // Search for PCT files
} // Couldn't find next volume
DEBUG ((DEBUG_INFO, "PCT_DBG %a: FvStatus = %r, PctFilesFound = %d, PctConfigFileCount = %d\n",
__FUNCTION__, FvStatus, PctFilesFound, PctConfigFileCount));
} while ((FvStatus == EFI_SUCCESS) && (PctFilesFound < PctConfigFileCount)); // FV search
//
// Assess status
//
if (PctFilesFound >= 1) {
PcdSetBoolS (PcdDisableVpdGpioTable, TRUE);
DEBUG ((DEBUG_INFO, "PCT_DBG %a: Disabling Vpd support !!!\n", __FUNCTION__));
}
DEBUG ((DEBUG_INFO, "PCT_DBG: Exiting %a\n", __FUNCTION__));
return EFI_SUCCESS;
}
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