ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Bgrt/BgrtParser.c

   1 /**
   2   BGRT table parser
   3
   4   Copyright (c) 2017 - 2018, ARM Limited. All rights reserved.
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   @par Reference(s):
  14     - ACPI 6.2 Specification - Errata A, September 2017
  15 **/
  16
  17 #include <IndustryStandard/Acpi.h>
  18 #include <Library/UefiLib.h>
  19 #include "AcpiParser.h"
  20 #include "AcpiTableParser.h"
  21
  22 // Local variables
  23 STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;
  24
  25 /** An ACPI_PARSER array describing the ACPI BDRT Table.
  26 */
  27 STATIC CONST ACPI_PARSER BgrtParser[] = {
  28   PARSE_ACPI_HEADER (&AcpiHdrInfo),
  29   {L"Version", 2, 36, L"0x%x", NULL, NULL, NULL, NULL},
  30   {L"Status", 1, 38, L"0x%x", NULL,  NULL, NULL, NULL},
  31   {L"Image Type", 1, 39, L"0x%x", NULL, NULL, NULL, NULL},
  32   {L"Image Address", 8, 40, L"0x%lx", NULL, NULL, NULL, NULL},
  33   {L"Image Offset X", 4, 48, L"%d", NULL, NULL, NULL, NULL},
  34   {L"Image Offset Y", 4, 52, L"%d", NULL, NULL, NULL, NULL}
  35 };
  36
  37 /** This function parses the ACPI BGRT table.
  38   When trace is enabled this function parses the BGRT table and
  39   traces the ACPI table fields.
  40
  41   This function also performs validation of the ACPI table fields.
  42
  43   @param [in] Trace              If TRUE, trace the ACPI fields.
  44   @param [in] Ptr                Pointer to the start of the buffer.
  45   @param [in] AcpiTableLength    Length of the ACPI table.
  46   @param [in] AcpiTableRevision  Revision of the ACPI table.
  47 */
  48 VOID
  49 EFIAPI
  50 ParseAcpiBgrt (
  51   IN BOOLEAN Trace,
  52   IN UINT8*  Ptr,
  53   IN UINT32  AcpiTableLength,
  54   IN UINT8   AcpiTableRevision
  55   )
  56 {
  57   if (!Trace) {
  58     return;
  59   }
  60
  61   ParseAcpi (
  62     Trace,
  63     0,
  64     "BGRT",
  65     Ptr,
  66     AcpiTableLength,
  67     PARSER_PARAMS (BgrtParser)
  68     );
  69 }