MdeModulePkg/Library/PiDxeS3BootScriptLib/InternalBootScriptLib.h

/** @file
  Support for S3 boot script lib. This file defined some internal macro and internal
  data structure

  Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent

**/
#ifndef __INTERNAL_BOOT_SCRIPT_LIB__
#define __INTERNAL_BOOT_SCRIPT_LIB__

#include <PiDxe.h>

#include <Guid/EventGroup.h>
#include <Protocol/SmmBase2.h>
#include <Protocol/DxeSmmReadyToLock.h>
#include <Protocol/SmmReadyToLock.h>
#include <Protocol/SmmExitBootServices.h>
#include <Protocol/SmmLegacyBoot.h>

#include <Library/S3BootScriptLib.h>

#include <Library/UefiBootServicesTableLib.h>
#include <Library/BaseLib.h>
#include <Library/PcdLib.h>
#include <Library/SmbusLib.h>
#include <Library/IoLib.h>
#include <Library/PciSegmentLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/TimerLib.h>
#include <Library/UefiLib.h>
#include <Library/LockBoxLib.h>

#include "BootScriptInternalFormat.h"

#define MAX_IO_ADDRESS 0xFFFF

//
// Macro to convert a UEFI PCI address + segment to a PCI Segment Library PCI address
//
#define PCI_ADDRESS_ENCODE(S, A) PCI_SEGMENT_LIB_ADDRESS( \
                                   S, \
                                   ((((UINTN)(A)) & 0xff000000) >> 24), \
                                   ((((UINTN)(A)) & 0x00ff0000) >> 16), \
                                   ((((UINTN)(A)) & 0xff00) >> 8), \
                                   ((RShiftU64 ((A), 32) & 0xfff) | ((A) & 0xff)) \
                                   )

typedef union {
  UINT8 volatile  *Buf;
  UINT8 volatile  *Uint8;
  UINT16 volatile *Uint16;
  UINT32 volatile *Uint32;
  UINT64 volatile *Uint64;
  UINTN volatile   Uint;
} PTR;


// Minimum and maximum length for SMBus bus block protocols defined in SMBus spec 2.0.
//
#define MIN_SMBUS_BLOCK_LEN               1
#define MAX_SMBUS_BLOCK_LEN               32

//
// The boot script private data.
//
typedef struct {
  UINT8     *TableBase;
  UINT32    TableLength;            // Record the actual memory length
  UINT16    TableMemoryPageNumber;  // Record the page number Allocated for the table
  BOOLEAN   InSmm;                  // Record if this library is in SMM.
  BOOLEAN   AtRuntime;              // Record if current state is after SmmExitBootServices or SmmLegacyBoot.
  UINT32    BootTimeScriptLength;   // Maintain boot time script length in LockBox after SmmReadyToLock in SMM.
  BOOLEAN   SmmLocked;              // Record if current state is after SmmReadyToLock
  BOOLEAN   BackFromS3;             // Indicate that the system is back from S3.
} SCRIPT_TABLE_PRIVATE_DATA;

typedef
EFI_STATUS
(EFIAPI *DISPATCH_ENTRYPOINT_FUNC) (
  IN EFI_HANDLE ImageHandle,
  IN VOID       *Context
  );

extern SCRIPT_TABLE_PRIVATE_DATA       *mS3BootScriptTablePtr;

//
// Define Opcode for Label which is implementation specific and no standard spec define.
//
#define  S3_BOOT_SCRIPT_LIB_LABEL_OPCODE    0xFE

///
/// The opcode indicate the start of the boot script table.
///
#define S3_BOOT_SCRIPT_LIB_TABLE_OPCODE                  0xAA
///
/// The opcode indicate the end of the boot script table.
///
#define S3_BOOT_SCRIPT_LIB_TERMINATE_OPCODE              0xFF


#endif //__INTERNAL_BOOT_SCRIPT_LIB__