IntelFsp2WrapperPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / IntelFsp2WrapperPkg / Library / BaseFspWrapperApiLib / FspWrapperApiLib.c

/** @file\r
  Provide FSP API related function.\r
\r
  Copyright (c) 2014 - 2017, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <PiPei.h>\r
\r
#include <Library/FspWrapperApiLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
\r
/**\r
  Wrapper for a thunk  to transition from long mode to compatibility mode to execute 32-bit code and then transit back to\r
  long mode.\r
\r
  @param[in] Function     The 32bit code entry to be executed.\r
  @param[in] Param1       The first parameter to pass to 32bit code.\r
  @param[in] Param2       The second parameter to pass to 32bit code.\r
\r
  @return EFI_STATUS.\r
**/\r
EFI_STATUS\r
Execute32BitCode (\r
  IN UINT64      Function,\r
  IN UINT64      Param1,\r
  IN UINT64      Param2\r
  );\r
\r
/**\r
  Find FSP header pointer.\r
\r
  @param[in] FlashFvFspBase Flash address of FSP FV.\r
\r
  @return FSP header pointer.\r
**/\r
FSP_INFO_HEADER *\r
EFIAPI\r
FspFindFspHeader (\r
  IN EFI_PHYSICAL_ADDRESS  FlashFvFspBase\r
  )\r
{\r
  UINT8 *CheckPointer;\r
\r
  CheckPointer = (UINT8 *) (UINTN) FlashFvFspBase;\r
\r
  if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->Signature != EFI_FVH_SIGNATURE) {\r
    return NULL;\r
  }\r
\r
  if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset != 0) {\r
    CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset;\r
    CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_EXT_HEADER *)CheckPointer)->ExtHeaderSize;\r
    CheckPointer = (UINT8 *) ALIGN_POINTER (CheckPointer, 8);\r
  } else {\r
    CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->HeaderLength;\r
  }\r
\r
\r
  CheckPointer = CheckPointer + sizeof (EFI_FFS_FILE_HEADER);\r
\r
  if (((EFI_RAW_SECTION *)CheckPointer)->Type != EFI_SECTION_RAW) {\r
    return NULL;\r
  }\r
\r
  CheckPointer = CheckPointer + sizeof (EFI_RAW_SECTION);\r
\r
  return (FSP_INFO_HEADER *)CheckPointer;\r
}\r
\r
/**\r
  Call FSP API - FspNotifyPhase.\r
\r
  @param[in] NotifyPhaseParams Address pointer to the NOTIFY_PHASE_PARAMS structure.\r
\r
  @return EFI status returned by FspNotifyPhase API.\r
**/\r
EFI_STATUS\r
EFIAPI\r
CallFspNotifyPhase (\r
  IN NOTIFY_PHASE_PARAMS *NotifyPhaseParams\r
  )\r
{\r
  FSP_INFO_HEADER     *FspHeader;\r
  FSP_NOTIFY_PHASE    NotifyPhaseApi;\r
  EFI_STATUS          Status;\r
  BOOLEAN             InterruptState;\r
\r
  FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspsBaseAddress));\r
  if (FspHeader == NULL) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  NotifyPhaseApi = (FSP_NOTIFY_PHASE)((UINTN)FspHeader->ImageBase + FspHeader->NotifyPhaseEntryOffset);\r
  InterruptState = SaveAndDisableInterrupts ();\r
  Status = Execute32BitCode ((UINTN)NotifyPhaseApi, (UINTN)NotifyPhaseParams, (UINTN)NULL);\r
  SetInterruptState (InterruptState);\r
\r
  return Status;\r
}\r
\r
/**\r
  Call FSP API - FspMemoryInit.\r
\r
  @param[in]  FspmUpdDataPtr Address pointer to the FSP_MEMORY_INIT_PARAMS structure.\r
  @param[out] HobListPtr     Address of the HobList pointer.\r
\r
  @return EFI status returned by FspMemoryInit API.\r
**/\r
EFI_STATUS\r
EFIAPI\r
CallFspMemoryInit (\r
  IN VOID                       *FspmUpdDataPtr,\r
  OUT VOID                      **HobListPtr\r
  )\r
{\r
  FSP_INFO_HEADER     *FspHeader;\r
  FSP_MEMORY_INIT     FspMemoryInitApi;\r
  EFI_STATUS          Status;\r
  BOOLEAN             InterruptState;\r
\r
  FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspmBaseAddress));\r
  if (FspHeader == NULL) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  FspMemoryInitApi = (FSP_MEMORY_INIT)((UINTN)FspHeader->ImageBase + FspHeader->FspMemoryInitEntryOffset);\r
  InterruptState = SaveAndDisableInterrupts ();\r
  Status = Execute32BitCode ((UINTN)FspMemoryInitApi, (UINTN)FspmUpdDataPtr, (UINTN)HobListPtr);\r
  SetInterruptState (InterruptState);\r
\r
  return Status;\r
}\r
\r
/**\r
  Call FSP API - TempRamExit.\r
\r
  @param[in] TempRamExitParam    Address pointer to the TempRamExit parameters structure.\r
\r
  @return EFI status returned by TempRamExit API.\r
**/\r
EFI_STATUS\r
EFIAPI\r
CallTempRamExit (\r
  IN VOID                       *TempRamExitParam\r
  )\r
{\r
  FSP_INFO_HEADER     *FspHeader;\r
  FSP_TEMP_RAM_EXIT   TempRamExitApi;\r
  EFI_STATUS          Status;\r
  BOOLEAN             InterruptState;\r
\r
  FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspmBaseAddress));\r
  if (FspHeader == NULL) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  TempRamExitApi = (FSP_TEMP_RAM_EXIT)((UINTN)FspHeader->ImageBase + FspHeader->TempRamExitEntryOffset);\r
  InterruptState = SaveAndDisableInterrupts ();\r
  Status = Execute32BitCode ((UINTN)TempRamExitApi, (UINTN)TempRamExitParam, (UINTN)NULL);\r
  SetInterruptState (InterruptState);\r
\r
  return Status;\r
}\r
\r
/**\r
  Call FSP API - FspSiliconInit.\r
\r
  @param[in] FspsUpdDataPtr Address pointer to the Silicon Init parameters structure.\r
\r
  @return EFI status returned by FspSiliconInit API.\r
**/\r
EFI_STATUS\r
EFIAPI\r
CallFspSiliconInit (\r
  IN VOID                       *FspsUpdDataPtr\r
  )\r
{\r
  FSP_INFO_HEADER     *FspHeader;\r
  FSP_SILICON_INIT    FspSiliconInitApi;\r
  EFI_STATUS          Status;\r
  BOOLEAN             InterruptState;\r
\r
  FspHeader = (FSP_INFO_HEADER *)FspFindFspHeader (PcdGet32 (PcdFspsBaseAddress));\r
  if (FspHeader == NULL) {\r
    return EFI_DEVICE_ERROR;\r
  }\r
\r
  FspSiliconInitApi = (FSP_SILICON_INIT)((UINTN)FspHeader->ImageBase + FspHeader->FspSiliconInitEntryOffset);\r
  InterruptState = SaveAndDisableInterrupts ();\r
  Status = Execute32BitCode ((UINTN)FspSiliconInitApi, (UINTN)FspsUpdDataPtr, (UINTN)NULL);\r
  SetInterruptState (InterruptState);\r
\r
  return Status;\r
}\r