Vlv2TbltDevicePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / Vlv2TbltDevicePkg / PlatformInfoDxe / PlatformInfoDxe.c

/** @file\r
\r
  Copyright (c) 2004  - 2014, Intel Corporation. All rights reserved.<BR>\r
                                                                                   \r\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
                                                                                   \r\r
\r
Module Name:\r
\r
  PlatformInfoDxe.c\r
\r
Abstract:\r
  Platform Info driver to public platform related HOB data\r
\r
--*/\r
\r
#include "PlatformInfoDxe.h"\r
\r
/**\r
  Entry point for the driver.\r
\r
  This routine get the platform HOB data from PEI and publish\r
  as Platform Info variable that can be accessed during boot service and\r
  runtime.\r
\r
  @param ImageHandle    Image Handle.\r
  @param SystemTable    EFI System Table.\r
\r
  @retval Status        Function execution status.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PlatformInfoInit (\r
  IN EFI_HANDLE                         ImageHandle,\r
  IN EFI_SYSTEM_TABLE                   *SystemTable\r
  )\r
{\r
  EFI_STATUS                  Status;\r
  EFI_PLATFORM_INFO_HOB       *PlatformInfoHobPtr;\r
  EFI_PEI_HOB_POINTERS        GuidHob;\r
  EFI_PLATFORM_INFO_HOB       TmpHob;\r
  UINTN                       VarSize;\r
  EFI_OS_SELECTION_HOB        *OsSlectionHobPtr;\r
  UINT8                       Selection;\r
  SYSTEM_CONFIGURATION        SystemConfiguration;\r
  UINT8                       *LpssDataHobPtr;\r
  UINT8                       *LpssDataVarPtr;\r
  UINTN                       i;\r
\r
  VarSize = sizeof(SYSTEM_CONFIGURATION);\r
  Status = gRT->GetVariable(\r
                  NORMAL_SETUP_NAME,\r
                  &gEfiNormalSetupGuid,\r
                  NULL,\r
                  &VarSize,\r
                  &SystemConfiguration\r
                  );\r
  \r
  if (EFI_ERROR (Status) || VarSize != sizeof(SYSTEM_CONFIGURATION)) {\r
    //The setup variable is corrupted\r
    VarSize = sizeof(SYSTEM_CONFIGURATION);\r
    Status = gRT->GetVariable(\r
              L"SetupRecovery",\r
              &gEfiNormalSetupGuid,\r
              NULL,\r
              &VarSize,\r
              &SystemConfiguration\r
              );\r
    ASSERT_EFI_ERROR (Status);\r
  }    \r
\r
  VarSize = sizeof(Selection);\r
  Status = gRT->GetVariable(\r
                  L"OsSelection",\r
                  &gOsSelectionVariableGuid,\r
                  NULL,\r
                  &VarSize,\r
                  &Selection\r
                  );\r
\r
  if (EFI_ERROR(Status)) {\r
    Selection = SystemConfiguration.ReservedO;\r
    Status = gRT->SetVariable (\r
                    L"OsSelection",\r
                    &gOsSelectionVariableGuid,\r
                    EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r
                    sizeof(Selection),\r
                    &Selection\r
                    );\r
  }\r
\r
  GuidHob.Raw = GetHobList ();\r
  if (GuidHob.Raw != NULL) {\r
    if ((GuidHob.Raw = GetNextGuidHob (&gOsSelectionVariableGuid, GuidHob.Raw)) != NULL) {\r
      OsSlectionHobPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r
\r
      if (OsSlectionHobPtr->OsSelectionChanged) {\r
        SystemConfiguration.ReservedO = OsSlectionHobPtr->OsSelection;\r
\r
        //\r
        // Load Audio default configuration\r
        //\r
        SystemConfiguration.Lpe         = OsSlectionHobPtr->Lpe;\r
        SystemConfiguration.PchAzalia   = OsSlectionHobPtr->PchAzalia;\r
\r
        //\r
        // Load LPSS and SCC default configurations\r
        //\r
        LpssDataHobPtr = &OsSlectionHobPtr->LpssData.LpssPciModeEnabled;\r
        LpssDataVarPtr = &SystemConfiguration.LpssPciModeEnabled;\r
        for (i = 0; i < sizeof(EFI_PLATFORM_LPSS_DATA); i++) {\r
          *LpssDataVarPtr = *LpssDataHobPtr;\r
          LpssDataVarPtr++;\r
          LpssDataHobPtr++;\r
        }\r
\r
        SystemConfiguration.GOPEnable = TRUE;\r
\r
        Status = gRT->SetVariable (\r
                        NORMAL_SETUP_NAME,\r
                        &gEfiNormalSetupGuid,\r
                        EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r
                        sizeof(SYSTEM_CONFIGURATION),\r
                        &SystemConfiguration\r
                        );\r
        ASSERT_EFI_ERROR (Status);\r
      }\r
    }\r
  }\r
\r
  GuidHob.Raw = GetHobList ();\r
  if (GuidHob.Raw == NULL) {\r
  	return EFI_NOT_FOUND;\r
  }\r
\r
  if ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformInfoGuid, GuidHob.Raw)) != NULL) {\r
    PlatformInfoHobPtr = GET_GUID_HOB_DATA (GuidHob.Guid);\r
    VarSize = sizeof(EFI_PLATFORM_INFO_HOB);\r
    Status = gRT->GetVariable(\r
                    L"PlatformInfo",\r
                    &gEfiVlv2VariableGuid,\r
                    NULL,\r
                    &VarSize,\r
                    &TmpHob\r
                    );\r
\r
    if (EFI_ERROR(Status) || CompareMem (&TmpHob, PlatformInfoHobPtr, VarSize)) {\r
\r
      //\r
      // Write the Platform Info to volatile memory\r
      //\r
      Status = gRT->SetVariable(\r
                      L"PlatformInfo",\r
                      &gEfiVlv2VariableGuid,\r
                      EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,\r
                      sizeof(EFI_PLATFORM_INFO_HOB),\r
                      PlatformInfoHobPtr\r
                      );\r
      if (EFI_ERROR(Status)) {\r
        return Status;\r
      }\r
    }\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r