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274 lines
8.2 KiB
C
274 lines
8.2 KiB
C
/******************************************************************************
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*
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* Module Name: tbprint - Table output utilities
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2022, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include "acpi.h"
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#include "accommon.h"
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#include "actables.h"
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#define _COMPONENT ACPI_TABLES
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ACPI_MODULE_NAME ("tbprint")
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/* Local prototypes */
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static void
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AcpiTbFixString (
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char *String,
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ACPI_SIZE Length);
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static void
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AcpiTbCleanupTableHeader (
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ACPI_TABLE_HEADER *OutHeader,
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ACPI_TABLE_HEADER *Header);
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbFixString
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*
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* PARAMETERS: String - String to be repaired
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* Length - Maximum length
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*
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* RETURN: None
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*
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* DESCRIPTION: Replace every non-printable or non-ascii byte in the string
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* with a question mark '?'.
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*
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******************************************************************************/
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static void
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AcpiTbFixString (
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char *String,
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ACPI_SIZE Length)
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{
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while (Length && *String)
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{
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if (!isprint ((int) *String))
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{
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*String = '?';
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}
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String++;
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Length--;
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbCleanupTableHeader
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*
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* PARAMETERS: OutHeader - Where the cleaned header is returned
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* Header - Input ACPI table header
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*
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* RETURN: Returns the cleaned header in OutHeader
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*
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* DESCRIPTION: Copy the table header and ensure that all "string" fields in
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* the header consist of printable characters.
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*
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******************************************************************************/
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static void
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AcpiTbCleanupTableHeader (
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ACPI_TABLE_HEADER *OutHeader,
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ACPI_TABLE_HEADER *Header)
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{
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memcpy (OutHeader, Header, sizeof (ACPI_TABLE_HEADER));
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AcpiTbFixString (OutHeader->Signature, ACPI_NAMESEG_SIZE);
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AcpiTbFixString (OutHeader->OemId, ACPI_OEM_ID_SIZE);
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AcpiTbFixString (OutHeader->OemTableId, ACPI_OEM_TABLE_ID_SIZE);
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AcpiTbFixString (OutHeader->AslCompilerId, ACPI_NAMESEG_SIZE);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbPrintTableHeader
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*
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* PARAMETERS: Address - Table physical address
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* Header - Table header
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*
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* RETURN: None
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*
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* DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
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*
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******************************************************************************/
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void
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AcpiTbPrintTableHeader (
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ACPI_PHYSICAL_ADDRESS Address,
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ACPI_TABLE_HEADER *Header)
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{
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ACPI_TABLE_HEADER LocalHeader;
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if (ACPI_COMPARE_NAMESEG (Header->Signature, ACPI_SIG_FACS))
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{
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/* FACS only has signature and length fields */
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ACPI_INFO (("%-4.4s 0x%8.8X%8.8X %06X",
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Header->Signature, ACPI_FORMAT_UINT64 (Address),
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Header->Length));
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}
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else if (ACPI_VALIDATE_RSDP_SIG (ACPI_CAST_PTR (ACPI_TABLE_RSDP,
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Header)->Signature))
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{
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/* RSDP has no common fields */
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memcpy (LocalHeader.OemId, ACPI_CAST_PTR (ACPI_TABLE_RSDP,
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Header)->OemId, ACPI_OEM_ID_SIZE);
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AcpiTbFixString (LocalHeader.OemId, ACPI_OEM_ID_SIZE);
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ACPI_INFO (("RSDP 0x%8.8X%8.8X %06X (v%.2d %-6.6s)",
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ACPI_FORMAT_UINT64 (Address),
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(ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision > 0) ?
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ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Length : 20,
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ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision,
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LocalHeader.OemId));
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}
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else
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{
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/* Standard ACPI table with full common header */
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AcpiTbCleanupTableHeader (&LocalHeader, Header);
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ACPI_INFO ((
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"%-4.4s 0x%8.8X%8.8X"
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" %06X (v%.2d %-6.6s %-8.8s %08X %-4.4s %08X)",
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LocalHeader.Signature, ACPI_FORMAT_UINT64 (Address),
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LocalHeader.Length, LocalHeader.Revision, LocalHeader.OemId,
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LocalHeader.OemTableId, LocalHeader.OemRevision,
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LocalHeader.AslCompilerId, LocalHeader.AslCompilerRevision));
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbValidateChecksum
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*
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* PARAMETERS: Table - ACPI table to verify
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* Length - Length of entire table
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*
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* RETURN: Status
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*
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* DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
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* exception on bad checksum.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiTbVerifyChecksum (
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ACPI_TABLE_HEADER *Table,
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UINT32 Length)
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{
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UINT8 Checksum;
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/*
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* FACS/S3PT:
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* They are the odd tables, have no standard ACPI header and no checksum
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*/
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if (ACPI_COMPARE_NAMESEG (Table->Signature, ACPI_SIG_S3PT) ||
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ACPI_COMPARE_NAMESEG (Table->Signature, ACPI_SIG_FACS))
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{
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return (AE_OK);
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}
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/* Compute the checksum on the table */
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Checksum = AcpiTbChecksum (ACPI_CAST_PTR (UINT8, Table), Length);
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/* Checksum ok? (should be zero) */
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if (Checksum)
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{
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ACPI_BIOS_WARNING ((AE_INFO,
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"Incorrect checksum in table [%4.4s] - 0x%2.2X, "
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"should be 0x%2.2X",
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Table->Signature, Table->Checksum,
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(UINT8) (Table->Checksum - Checksum)));
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#if (ACPI_CHECKSUM_ABORT)
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return (AE_BAD_CHECKSUM);
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#endif
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}
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: AcpiTbChecksum
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*
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* PARAMETERS: Buffer - Pointer to memory region to be checked
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* Length - Length of this memory region
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*
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* RETURN: Checksum (UINT8)
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*
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* DESCRIPTION: Calculates circular checksum of memory region.
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*
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******************************************************************************/
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UINT8
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AcpiTbChecksum (
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UINT8 *Buffer,
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UINT32 Length)
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{
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UINT8 Sum = 0;
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UINT8 *End = Buffer + Length;
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while (Buffer < End)
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{
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Sum = (UINT8) (Sum + *(Buffer++));
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}
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return (Sum);
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}
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