/** @file
  API for SMBIOS Plug and Play functions, access to SMBIOS table and structures.

  Copyright (c) 2005 - 2015, Intel Corporation. All rights reserved.<BR>
  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#ifndef _LIB_SMBIOS_VIEW_H_
#define _LIB_SMBIOS_VIEW_H_

#include <IndustryStandard/SmBios.h>

#define DMI_SUCCESS                     0x00
#define DMI_UNKNOWN_FUNCTION            0x81
#define DMI_FUNCTION_NOT_SUPPORTED      0x82
#define DMI_INVALID_HANDLE              0x83
#define DMI_BAD_PARAMETER               0x84
#define DMI_INVALID_SUBFUNCTION         0x85
#define DMI_NO_CHANGE                   0x86
#define DMI_ADD_STRUCTURE_FAILED        0x87
#define DMI_READ_ONLY                   0x8D
#define DMI_LOCK_NOT_SUPPORTED          0x90
#define DMI_CURRENTLY_LOCKED            0x91
#define DMI_INVALID_LOCK                0x92

#define INVALID_HANDLE                  (UINT16) (-1)

#define EFI_SMBIOSERR(val)              EFIERR (0x30000 | val)

#define EFI_SMBIOSERR_FAILURE           EFI_SMBIOSERR (1)
#define EFI_SMBIOSERR_STRUCT_NOT_FOUND  EFI_SMBIOSERR (2)
#define EFI_SMBIOSERR_TYPE_UNKNOWN      EFI_SMBIOSERR (3)
#define EFI_SMBIOSERR_UNSUPPORTED       EFI_SMBIOSERR (4)

/**
  Init the SMBIOS VIEW API's environment for the 32-bit table..

  @retval EFI_SUCCESS  Successful to init the SMBIOS VIEW Lib.
**/
EFI_STATUS
LibSmbiosInit (
  VOID
  );

/**
  Init the SMBIOS VIEW API's environment for the 64-bit table..

  @retval EFI_SUCCESS  Successful to init the SMBIOS VIEW Lib.
**/
EFI_STATUS
LibSmbios64BitInit (
  VOID
  );

/**
  Cleanup the Smbios information.
**/
VOID
LibSmbiosCleanup (
  VOID
  );

/**
  Cleanup the Smbios information.
**/
VOID
LibSmbios64BitCleanup (
  VOID
  );

/**
  Get the entry point structure for the table.

  @param[out] EntryPointStructure  The pointer to populate.
**/
VOID
LibSmbiosGetEPS (
  OUT SMBIOS_TABLE_ENTRY_POINT **EntryPointStructure
  );

/**
  Get the entry point structure for the 64-bit table.

  @param[out] EntryPointStructure  The pointer to populate.
**/
VOID
LibSmbios64BitGetEPS (
  OUT SMBIOS_TABLE_3_0_ENTRY_POINT **EntryPointStructure
  );

/**
  Return SMBIOS string for the given string number.

  @param[in] Smbios         Pointer to SMBIOS structure.
  @param[in] StringNumber   String number to return. -1 is used to skip all strings and
                            point to the next SMBIOS structure.

  @return Pointer to string, or pointer to next SMBIOS strcuture if StringNumber == -1
**/
CHAR8*
LibGetSmbiosString (
  IN  SMBIOS_STRUCTURE_POINTER    *Smbios,
  IN  UINT16                      StringNumber
  );

/**
    Get SMBIOS structure for the given Handle,
    Handle is changed to the next handle or 0xFFFF when the end is
    reached or the handle is not found.

    @param[in, out] Handle     0xFFFF: get the first structure
                               Others: get a structure according to this value.
    @param[out] Buffer         The pointer to the pointer to the structure.
    @param[out] Length         Length of the structure.

    @retval DMI_SUCCESS   Handle is updated with next structure handle or
                          0xFFFF(end-of-list).

    @retval DMI_INVALID_HANDLE  Handle is updated with first structure handle or
                                0xFFFF(end-of-list).
**/
EFI_STATUS
LibGetSmbiosStructure (
  IN  OUT UINT16  *Handle,
  OUT UINT8       **Buffer,
  OUT UINT16      *Length
  );

/**
    Get SMBIOS structure for the given Handle in 64-bit table,
    Handle is changed to the next handle or 0xFFFF when the end is
    reached or the handle is not found.

    @param[in, out] Handle     0xFFFF: get the first structure
                               Others: get a structure according to this value.
    @param[out] Buffer         The pointer to the pointer to the structure.
    @param[out] Length         Length of the structure.

    @retval DMI_SUCCESS   Handle is updated with next structure handle or
                          0xFFFF(end-of-list).

    @retval DMI_INVALID_HANDLE  Handle is updated with first structure handle or
                                0xFFFF(end-of-list).
**/
EFI_STATUS
LibGetSmbios64BitStructure (
  IN  OUT UINT16  *Handle,
  OUT UINT8       **Buffer,
  OUT UINT16      *Length
  );

#endif