SecurityPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / SecurityPkg / Library / Tpm12CommandLib / Tpm12Startup.c

/** @file\r
  Implement TPM1.2 Startup related command.\r
\r
Copyright (c) 2013, Intel Corporation. All rights reserved. <BR>\r
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <PiPei.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/Tpm12DeviceLib.h>\r
#include <Library/DebugLib.h>\r
\r
#pragma pack(1)\r
\r
typedef struct {\r
  TPM_RQU_COMMAND_HDR   Hdr;\r
  TPM_STARTUP_TYPE      TpmSt;\r
} TPM_CMD_START_UP;\r
\r
#pragma pack()\r
\r
/**\r
  Send Startup command to TPM1.2.\r
\r
  @param TpmSt           Startup Type.\r
\r
  @retval EFI_SUCCESS      Operation completed successfully.\r
  @retval EFI_DEVICE_ERROR Unexpected device behavior.\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tpm12Startup (\r
  IN TPM_STARTUP_TYPE  TpmSt\r
  )\r
{\r
  EFI_STATUS           Status;\r
  TPM_CMD_START_UP     Command;\r
  TPM_RSP_COMMAND_HDR  Response;\r
  UINT32               Length;\r
\r
  //\r
  // send Tpm command TPM_ORD_Startup\r
  //\r
  Command.Hdr.tag       = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
  Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));\r
  Command.Hdr.ordinal   = SwapBytes32 (TPM_ORD_Startup);\r
  Command.TpmSt         = SwapBytes16 (TpmSt);\r
  Length = sizeof (Response);\r
  Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
  switch (SwapBytes32(Response.returnCode)) {\r
  case TPM_SUCCESS:\r
    DEBUG ((DEBUG_INFO, "TPM12Startup: TPM_SUCCESS\n"));\r
    return EFI_SUCCESS;\r
  case TPM_INVALID_POSTINIT:\r
    // In warm reset, TPM may response TPM_INVALID_POSTINIT\r
    DEBUG ((DEBUG_INFO, "TPM12Startup: TPM_INVALID_POSTINIT\n"));\r
    return EFI_SUCCESS;\r
  default:\r
    return EFI_DEVICE_ERROR;\r
  }\r
}\r
\r
/**\r
  Send SaveState command to TPM1.2.\r
\r
  @retval EFI_SUCCESS      Operation completed successfully.\r
  @retval EFI_DEVICE_ERROR Unexpected device behavior.\r
**/\r
EFI_STATUS\r
EFIAPI\r
Tpm12SaveState (\r
  VOID\r
  )\r
{\r
  EFI_STATUS           Status;\r
  TPM_RQU_COMMAND_HDR  Command;\r
  TPM_RSP_COMMAND_HDR  Response;\r
  UINT32               Length;\r
\r
  //\r
  // send Tpm command TPM_ORD_SaveState\r
  //\r
  Command.tag        = SwapBytes16 (TPM_TAG_RQU_COMMAND);\r
  Command.paramSize  = SwapBytes32 (sizeof (Command));\r
  Command.ordinal    = SwapBytes32 (TPM_ORD_SaveState);\r
  Length = sizeof (Response);\r
  Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
  switch (SwapBytes32 (Response.returnCode)) {\r
  case TPM_SUCCESS:\r
    return EFI_SUCCESS;\r
  default:\r
    return EFI_DEVICE_ERROR;\r
  }\r
}\r