EmulatorPkg/Include/Library/SmbiosLib.h

   1 /** @file
   2   Provides library functions for common SMBIOS operations. Only available to DXE
   3   and UEFI module types.
   4
   5
   6 Copyright (c) 2012, Apple Inc. All rights reserved.
   7 Portitions Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
   8 This program and the accompanying materials are licensed and made available under
   9 the terms and conditions of the BSD License that accompanies this distribution.
  10 The full text of the license may be found at
  11 http://opensource.org/licenses/bsd-license.php.
  12
  13 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  14 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  15
  16 **/
  17
  18 #ifndef _SMBIOS_LIB_H__
  19 #define _SMBIOS_LIB_H__
  20
  21 #include <IndustryStandard/Smbios.h>
  22 #include <Protocol/Smbios.h>
  23
  24
  25 ///
  26 /// Cache copy of the SMBIOS Protocol pointer
  27 ///
  28 extern EFI_SMBIOS_PROTOCOL *gSmbios;
  29
  30
  31 ///
  32 /// Template for SMBIOS table initialization.
  33 /// The SMBIOS_TABLE_STRING types in the formated area must match the
  34 /// StringArray sequene.
  35 ///
  36 typedef struct {
  37   //
  38   // formatted area of a given SMBIOS record
  39   //
  40   SMBIOS_STRUCTURE    *Entry;
  41   //
  42   // NULL terminated array of ASCII strings to be added to the SMBIOS record.
  43   //
  44   CHAR8               **StringArray;
  45 } SMBIOS_TEMPLATE_ENTRY;
  46
  47
  48 /**
  49   Create an initial SMBIOS Table from an array of SMBIOS_TEMPLATE_ENTRY
  50   entries. SMBIOS_TEMPLATE_ENTRY.NULL indicates the end of the table.
  51
  52   @param  Template   Array of SMBIOS_TEMPLATE_ENTRY entries.
  53
  54   @retval EFI_SUCCESS          New SMBIOS tables were created.
  55   @retval EFI_OUT_OF_RESOURCES New SMBIOS tables were not created.
  56 **/
  57 EFI_STATUS
  58 EFIAPI
  59 SmbiosLibInitializeFromTemplate (
  60   IN  SMBIOS_TEMPLATE_ENTRY   *Template
  61   );
  62
  63
  64
  65 /**
  66   Create SMBIOS record.
  67
  68   Converts a fixed SMBIOS structure and an array of pointers to strings into
  69   an SMBIOS record where the strings are cat'ed on the end of the fixed record
  70   and terminated via a double NULL and add to SMBIOS table.
  71
  72   SMBIOS_TABLE_TYPE32 gSmbiosType12 = {
  73     { EFI_SMBIOS_TYPE_SYSTEM_CONFIGURATION_OPTIONS, sizeof (SMBIOS_TABLE_TYPE12), 0 },
  74     1 // StringCount
  75   };
  76   CHAR8 *gSmbiosType12Strings[] = {
  77     "Not Found",
  78     NULL
  79   };
  80
  81   ...
  82   AddSmbiosEntryFromTemplate (
  83     (EFI_SMBIOS_TABLE_HEADER*)&gSmbiosType12,
  84     gSmbiosType12Strings
  85     );
  86
  87   @param  SmbiosEntry   Fixed SMBIOS structure
  88   @param  StringArray   Array of strings to convert to an SMBIOS string pack.
  89                         NULL is OK.
  90
  91   @retval EFI_SUCCESS          New SmbiosEntry was added to SMBIOS table.
  92   @retval EFI_OUT_OF_RESOURCES SmbiosEntry was not added.
  93 **/
  94 EFI_STATUS
  95 EFIAPI
  96 SmbiosLibCreateEntry (
  97   IN  SMBIOS_STRUCTURE *SmbiosEntry,
  98   IN  CHAR8            **StringArray
  99   );
 100
 101
 102 /**
 103   Update the string associated with an existing SMBIOS record.
 104
 105   This function allows the update of specific SMBIOS strings. The number of valid strings for any
 106   SMBIOS record is defined by how many strings were present when Add() was called.
 107
 108   @param[in]    SmbiosHandle    SMBIOS Handle of structure that will have its string updated.
 109   @param[in]    StringNumber    The non-zero string number of the string to update.
 110   @param[in]    String          Update the StringNumber string with String.
 111
 112   @retval EFI_SUCCESS           SmbiosHandle had its StringNumber String updated.
 113   @retval EFI_INVALID_PARAMETER SmbiosHandle does not exist. Or String is invalid.
 114   @retval EFI_UNSUPPORTED       String was not added because it is longer than the SMBIOS Table supports.
 115   @retval EFI_NOT_FOUND         The StringNumber.is not valid for this SMBIOS record.
 116 **/
 117 EFI_STATUS
 118 EFIAPI
 119 SmbiosLibUpdateString (
 120   IN  EFI_SMBIOS_HANDLE     SmbiosHandle,
 121   IN  SMBIOS_TABLE_STRING   StringNumber,
 122   IN  CHAR8                 *String
 123   );
 124
 125 /**
 126   Update the string associated with an existing SMBIOS record.
 127
 128   This function allows the update of specific SMBIOS strings. The number of valid strings for any
 129   SMBIOS record is defined by how many strings were present when Add() was called.
 130
 131   @param[in]    SmbiosHandle    SMBIOS Handle of structure that will have its string updated.
 132   @param[in]    StringNumber    The non-zero string number of the string to update.
 133   @param[in]    String          Update the StringNumber string with String.
 134
 135   @retval EFI_SUCCESS           SmbiosHandle had its StringNumber String updated.
 136   @retval EFI_INVALID_PARAMETER SmbiosHandle does not exist. Or String is invalid.
 137   @retval EFI_UNSUPPORTED       String was not added because it is longer than the SMBIOS Table supports.
 138   @retval EFI_NOT_FOUND         The StringNumber.is not valid for this SMBIOS record.
 139 **/
 140 EFI_STATUS
 141 EFIAPI
 142 SmbiosLibUpdateUnicodeString (
 143   IN  EFI_SMBIOS_HANDLE     SmbiosHandle,
 144   IN  SMBIOS_TABLE_STRING   StringNumber,
 145   IN  CHAR16                *String
 146   );
 147
 148 /**
 149   Allow caller to read a specific SMBIOS string
 150
 151   @param[in]    Header          SMBIOS record that contains the string.
 152   @param[in[    Intance         Instance of SMBIOS string 0 - N-1.
 153
 154   @retval NULL                  Instance of Type SMBIOS string was not found.
 155   @retval Other                 Pointer to matching SMBIOS string.
 156 **/
 157 CHAR8 *
 158 SmbiosLibReadString (
 159   IN SMBIOS_STRUCTURE *Header,
 160   IN UINTN            Instance
 161   );
 162
 163
 164 /**
 165   Allow the caller to discover a specific SMBIOS entry, and patch it if necissary.
 166
 167   @param[in]    Type            Type of the next SMBIOS record to return.
 168   @param[in[    Instance        Instance of SMBIOS record 0 - N-1.
 169   @param[out]   SmbiosHandle    Returns SMBIOS handle for the matching record.
 170
 171   @retval NULL                  Instance of Type SMBIOS record was not found.
 172   @retval Other                 Pointer to matching SMBIOS record.
 173 **/
 174 SMBIOS_STRUCTURE *
 175 EFIAPI
 176 SmbiosLibGetRecord (
 177   IN  EFI_SMBIOS_TYPE   Type,
 178   IN  UINTN             Instance,
 179   OUT EFI_SMBIOS_HANDLE *SmbiosHandle
 180   );
 181
 182 /**
 183   Remove an SMBIOS record.
 184
 185   This function removes an SMBIOS record using the handle specified by SmbiosHandle.
 186
 187   @param[in]    SmbiosHandle        The handle of the SMBIOS record to remove.
 188
 189   @retval EFI_SUCCESS               SMBIOS record was removed.
 190   @retval EFI_INVALID_PARAMETER     SmbiosHandle does not specify a valid SMBIOS record.
 191 **/
 192 EFI_STATUS
 193 EFIAPI
 194 SmbiosLibRemove (
 195   OUT EFI_SMBIOS_HANDLE SmbiosHandle
 196   );
 197
 198
 199
 200
 201 #endif