diff options
Diffstat (limited to 'DynamicTablesPkg/Include')
-rw-r--r-- | DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h b/DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h new file mode 100644 index 0000000000..fb183d427f --- /dev/null +++ b/DynamicTablesPkg/Include/Library/SmbiosStringTableLib.h @@ -0,0 +1,119 @@ +/** @file
+ SMBIOS String Table Helper library.
+
+ Copyright (c) 2022, Arm Limited. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef SMBIOS_STRING_TABLE_H_
+#define SMBIOS_STRING_TABLE_H_
+
+/** A structure representing a string in the string table.
+*/
+typedef struct StringElement {
+ /// Length of the string (does not include the NULL termination)
+ UINTN StringLen;
+
+ /// Reference to the string
+ CONST CHAR8 *String;
+} STRING_ELEMENT;
+
+/** A structure representing a string table.
+*/
+typedef struct StringTable {
+ /// Count of strings in the table
+ UINT8 StrCount;
+
+ /// Total length of all strings in the table (does not include
+ // the NULL termination for each string)
+ UINTN TotalStrLen;
+
+ /// Maximum string count
+ UINT8 MaxStringElements;
+
+ /// Pointer to the string table elements
+ STRING_ELEMENT *Elements;
+} STRING_TABLE;
+
+/** Add a string to the string table
+
+ @param[in] StrTable Pointer to the string table
+ @param[in] Str Pointer to the string
+ @param[out] StrRef Optional pointer to retrieve the string field
+ reference of the string in the string table
+
+ @return EFI_SUCCESS Success
+ @return EFI_INVALID_PARAMETER Invalid string table pointer
+ @return EFI_BUFFER_TOO_SMALL Insufficient space to add string
+**/
+EFI_STATUS
+EFIAPI
+StringTableAddString (
+ IN STRING_TABLE *CONST StrTable,
+ IN CONST CHAR8 *Str,
+ OUT UINT8 *StrRef OPTIONAL
+ );
+
+/** Returns the total size required to publish the strings to the SMBIOS
+ string area.
+
+ @param[in] StrTable Pointer to the string table
+
+ @return Total size required to publish the strings in the SMBIOS string area.
+**/
+UINTN
+EFIAPI
+StringTableGetStringSetSize (
+ IN STRING_TABLE *CONST StrTable
+ );
+
+/** Iterate through the string table and publish the strings in the SMBIOS
+ string area.
+
+ @param[in] StrTable Pointer to the string table
+ @param[in] SmbiosStringAreaStart Start address of the SMBIOS string area.
+ @param[in] SmbiosStringAreaSize Size of the SMBIOS string area.
+
+ @return EFI_SUCCESS Success
+ @return EFI_INVALID_PARAMETER Invalid string table pointer
+ @return EFI_BUFFER_TOO_SMALL Insufficient space to publish strings
+**/
+EFI_STATUS
+EFIAPI
+StringTablePublishStringSet (
+ IN STRING_TABLE *CONST StrTable,
+ IN CHAR8 *CONST SmbiosStringAreaStart,
+ IN CONST UINTN SmbiosStringAreaSize
+ );
+
+/** Initialise the string table and allocate memory for the string elements.
+
+ @param[in] StrTable Pointer to the string table
+ @param[in] MaxStringElements Maximum number of strings that the string
+ table can hold.
+
+ @return EFI_SUCCESS Success
+ @return EFI_INVALID_PARAMETER Invalid string table pointer
+ @return EFI_OUT_OF_RESOURCES Failed to allocate memory for string elements
+**/
+EFI_STATUS
+EFIAPI
+StringTableInitialize (
+ IN STRING_TABLE *CONST StrTable,
+ IN UINTN MaxStringElements
+ );
+
+/** Free memory allocated for the string elements in the string table.
+
+ @param[in] StrTable Pointer to the string table
+
+ @return EFI_SUCCESS Success
+ @return EFI_INVALID_PARAMETER Invalid string table pointer or string elements
+**/
+EFI_STATUS
+EFIAPI
+StringTableFree (
+ IN STRING_TABLE *CONST StrTable
+ );
+
+#endif // SMBIOS_STRING_TABLE_H_
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