Tpm12PhysicalPresence.c

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#include <PiPei.h>
#include <Library/Tpm12CommandLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/Tpm12DeviceLib.h>
 
#pragma pack(1)
 
typedef struct {
  TPM_RQU_COMMAND_HDR      Hdr;
  TPM_PHYSICAL_PRESENCE    PhysicalPresence;
} TPM_CMD_PHYSICAL_PRESENCE;
 
#pragma pack()
 
EFI_STATUS
EFIAPI
Tpm12PhysicalPresence (
  IN TPM_PHYSICAL_PRESENCE  PhysicalPresence
  )
{
  EFI_STATUS                 Status;
  TPM_CMD_PHYSICAL_PRESENCE  Command;
  TPM_RSP_COMMAND_HDR        Response;
  UINT32                     Length;
 
  //
  // send Tpm command TSC_ORD_PhysicalPresence
  //
  Command.Hdr.tag          = SwapBytes16 (TPM_TAG_RQU_COMMAND);
  Command.Hdr.paramSize    = SwapBytes32 (sizeof (Command));
  Command.Hdr.ordinal      = SwapBytes32 (TSC_ORD_PhysicalPresence);
  Command.PhysicalPresence = SwapBytes16 (PhysicalPresence);
  Length                   = sizeof (Response);
 
  Status = Tpm12SubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
  if (EFI_ERROR (Status)) {
    return Status;
  }
 
  if (SwapBytes32 (Response.returnCode) != TPM_SUCCESS) {
    DEBUG ((DEBUG_ERROR, "Tpm12PhysicalPresence: Response Code error! 0x%08x\r\n", SwapBytes32 (Response.returnCode)));
    return EFI_DEVICE_ERROR;
  }
 
  return EFI_SUCCESS;
}