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2024-03-22 a0752693d998599af469473b8dc239ef973a012f

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/** @file 
  UbaGpioUpdateLib implementation. 
 
  @copyright 
  Copyright 2012 - 2021 Intel Corporation. <BR> 
 
  SPDX-License-Identifier: BSD-2-Clause-Patent 
**/ 
 
#include <PiPei.h> 
#include <Uefi/UefiSpec.h> 
 
#include <Ppi/UbaCfgDb.h> 
 
#include <Library/PeimEntryPoint.h> 
#include <Library/PeiServicesLib.h> 
#include <Library/PeiServicesTablePointerLib.h> 
#include <Library/DebugLib.h> 
#include <Library/IoLib.h> 
 
#include <Library/UbaGpioUpdateLib.h> 
 
EFI_STATUS 
PlatformUpdateGpios ( 
  VOID 
) 
{ 
  EFI_STATUS                            Status; 
 
  UBA_CONFIG_DATABASE_PPI               *UbaConfigPpi = NULL; 
  PLATFORM_GPIO_UPDATE_TABLE            GpioTable; 
  UINTN                                 TableSize; 
  UINTN                                 Index; 
 
  Status = PeiServicesLocatePpi ( 
              &gUbaConfigDatabasePpiGuid, 
              0, 
              NULL, 
              &UbaConfigPpi 
              ); 
  if (EFI_ERROR(Status)) { 
    return Status; 
  } 
 
  TableSize = sizeof(GpioTable); 
  Status = UbaConfigPpi->GetData ( 
                                UbaConfigPpi, 
                                &gPlatformGpioConfigDataGuid, 
                                &GpioTable, 
                                &TableSize 
                                ); 
 
  if (EFI_ERROR(Status)) { 
    return Status; 
  } 
 
  ASSERT (GpioTable.Signature == PLATFORM_GPIO_UPDATE_SIGNATURE); 
  ASSERT (GpioTable.Version == PLATFORM_GPIO_UPDATE_VERSION); 
 
  for (Index = 0; GpioTable.Gpios[Index].Register != PLATFORM_END_OF_GPIO_LIST; Index++) { 
 
    IoWrite32 (GpioTable.Gpios[Index].Register, GpioTable.Gpios[Index].Value); 
  } 
 
  return Status; 
}