| /****************************************************************************** |
| * |
| * Module Name: tbprint - Table output utilities |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2016, Intel Corp. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions, and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * substantially similar to the "NO WARRANTY" disclaimer below |
| * ("Disclaimer") and any redistribution must be conditioned upon |
| * including a substantially similar Disclaimer requirement for further |
| * binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGES. |
| */ |
| |
| #include "acpi.h" |
| #include "accommon.h" |
| #include "actables.h" |
| |
| #define _COMPONENT ACPI_TABLES |
| ACPI_MODULE_NAME ("tbprint") |
| |
| |
| /* Local prototypes */ |
| |
| static void |
| AcpiTbFixString ( |
| char *String, |
| ACPI_SIZE Length); |
| |
| static void |
| AcpiTbCleanupTableHeader ( |
| ACPI_TABLE_HEADER *OutHeader, |
| ACPI_TABLE_HEADER *Header); |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiTbFixString |
| * |
| * PARAMETERS: String - String to be repaired |
| * Length - Maximum length |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Replace every non-printable or non-ascii byte in the string |
| * with a question mark '?'. |
| * |
| ******************************************************************************/ |
| |
| static void |
| AcpiTbFixString ( |
| char *String, |
| ACPI_SIZE Length) |
| { |
| |
| while (Length && *String) |
| { |
| if (!isprint ((int) *String)) |
| { |
| *String = '?'; |
| } |
| |
| String++; |
| Length--; |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiTbCleanupTableHeader |
| * |
| * PARAMETERS: OutHeader - Where the cleaned header is returned |
| * Header - Input ACPI table header |
| * |
| * RETURN: Returns the cleaned header in OutHeader |
| * |
| * DESCRIPTION: Copy the table header and ensure that all "string" fields in |
| * the header consist of printable characters. |
| * |
| ******************************************************************************/ |
| |
| static void |
| AcpiTbCleanupTableHeader ( |
| ACPI_TABLE_HEADER *OutHeader, |
| ACPI_TABLE_HEADER *Header) |
| { |
| |
| memcpy (OutHeader, Header, sizeof (ACPI_TABLE_HEADER)); |
| |
| AcpiTbFixString (OutHeader->Signature, ACPI_NAME_SIZE); |
| AcpiTbFixString (OutHeader->OemId, ACPI_OEM_ID_SIZE); |
| AcpiTbFixString (OutHeader->OemTableId, ACPI_OEM_TABLE_ID_SIZE); |
| AcpiTbFixString (OutHeader->AslCompilerId, ACPI_NAME_SIZE); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiTbPrintTableHeader |
| * |
| * PARAMETERS: Address - Table physical address |
| * Header - Table header |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP. |
| * |
| ******************************************************************************/ |
| |
| void |
| AcpiTbPrintTableHeader ( |
| ACPI_PHYSICAL_ADDRESS Address, |
| ACPI_TABLE_HEADER *Header) |
| { |
| ACPI_TABLE_HEADER LocalHeader; |
| |
| |
| if (ACPI_COMPARE_NAME (Header->Signature, ACPI_SIG_FACS)) |
| { |
| /* FACS only has signature and length fields */ |
| |
| ACPI_INFO ((AE_INFO, "%-4.4s 0x%8.8X%8.8X %06X", |
| Header->Signature, ACPI_FORMAT_UINT64 (Address), |
| Header->Length)); |
| } |
| else if (ACPI_VALIDATE_RSDP_SIG (Header->Signature)) |
| { |
| /* RSDP has no common fields */ |
| |
| memcpy (LocalHeader.OemId, ACPI_CAST_PTR (ACPI_TABLE_RSDP, |
| Header)->OemId, ACPI_OEM_ID_SIZE); |
| AcpiTbFixString (LocalHeader.OemId, ACPI_OEM_ID_SIZE); |
| |
| ACPI_INFO ((AE_INFO, "RSDP 0x%8.8X%8.8X %06X (v%.2d %-6.6s)", |
| ACPI_FORMAT_UINT64 (Address), |
| (ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision > 0) ? |
| ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Length : 20, |
| ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision, |
| LocalHeader.OemId)); |
| } |
| else |
| { |
| /* Standard ACPI table with full common header */ |
| |
| AcpiTbCleanupTableHeader (&LocalHeader, Header); |
| |
| ACPI_INFO ((AE_INFO, |
| "%-4.4s 0x%8.8X%8.8X" |
| " %06X (v%.2d %-6.6s %-8.8s %08X %-4.4s %08X)", |
| LocalHeader.Signature, ACPI_FORMAT_UINT64 (Address), |
| LocalHeader.Length, LocalHeader.Revision, LocalHeader.OemId, |
| LocalHeader.OemTableId, LocalHeader.OemRevision, |
| LocalHeader.AslCompilerId, LocalHeader.AslCompilerRevision)); |
| } |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiTbValidateChecksum |
| * |
| * PARAMETERS: Table - ACPI table to verify |
| * Length - Length of entire table |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns |
| * exception on bad checksum. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiTbVerifyChecksum ( |
| ACPI_TABLE_HEADER *Table, |
| UINT32 Length) |
| { |
| UINT8 Checksum; |
| |
| |
| /* |
| * FACS/S3PT: |
| * They are the odd tables, have no standard ACPI header and no checksum |
| */ |
| |
| if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_S3PT) || |
| ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_FACS)) |
| { |
| return (AE_OK); |
| } |
| |
| /* Compute the checksum on the table */ |
| |
| Checksum = AcpiTbChecksum (ACPI_CAST_PTR (UINT8, Table), Length); |
| |
| /* Checksum ok? (should be zero) */ |
| |
| if (Checksum) |
| { |
| ACPI_BIOS_WARNING ((AE_INFO, |
| "Incorrect checksum in table [%4.4s] - 0x%2.2X, " |
| "should be 0x%2.2X", |
| Table->Signature, Table->Checksum, |
| (UINT8) (Table->Checksum - Checksum))); |
| |
| #if (ACPI_CHECKSUM_ABORT) |
| return (AE_BAD_CHECKSUM); |
| #endif |
| } |
| |
| return (AE_OK); |
| } |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiTbChecksum |
| * |
| * PARAMETERS: Buffer - Pointer to memory region to be checked |
| * Length - Length of this memory region |
| * |
| * RETURN: Checksum (UINT8) |
| * |
| * DESCRIPTION: Calculates circular checksum of memory region. |
| * |
| ******************************************************************************/ |
| |
| UINT8 |
| AcpiTbChecksum ( |
| UINT8 *Buffer, |
| UINT32 Length) |
| { |
| UINT8 Sum = 0; |
| UINT8 *End = Buffer + Length; |
| |
| |
| while (Buffer < End) |
| { |
| Sum = (UINT8) (Sum + *(Buffer++)); |
| } |
| |
| return (Sum); |
| } |
