1 /******************************************************************************
3 * Module Name: tbprint - Table output utilities
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2017, Intel Corp.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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15 * notice, this list of conditions, and the following disclaimer,
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18 * substantially similar to the "NO WARRANTY" disclaimer below
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20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
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23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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44 #include <contrib/dev/acpica/include/acpi.h>
45 #include <contrib/dev/acpica/include/accommon.h>
46 #include <contrib/dev/acpica/include/actables.h>
48 #define _COMPONENT ACPI_TABLES
49 ACPI_MODULE_NAME ("tbprint")
52 /* Local prototypes */
60 AcpiTbCleanupTableHeader (
61 ACPI_TABLE_HEADER *OutHeader,
62 ACPI_TABLE_HEADER *Header);
65 /*******************************************************************************
67 * FUNCTION: AcpiTbFixString
69 * PARAMETERS: String - String to be repaired
70 * Length - Maximum length
74 * DESCRIPTION: Replace every non-printable or non-ascii byte in the string
75 * with a question mark '?'.
77 ******************************************************************************/
85 while (Length && *String)
87 if (!isprint ((int) *String))
98 /*******************************************************************************
100 * FUNCTION: AcpiTbCleanupTableHeader
102 * PARAMETERS: OutHeader - Where the cleaned header is returned
103 * Header - Input ACPI table header
105 * RETURN: Returns the cleaned header in OutHeader
107 * DESCRIPTION: Copy the table header and ensure that all "string" fields in
108 * the header consist of printable characters.
110 ******************************************************************************/
113 AcpiTbCleanupTableHeader (
114 ACPI_TABLE_HEADER *OutHeader,
115 ACPI_TABLE_HEADER *Header)
118 memcpy (OutHeader, Header, sizeof (ACPI_TABLE_HEADER));
120 AcpiTbFixString (OutHeader->Signature, ACPI_NAME_SIZE);
121 AcpiTbFixString (OutHeader->OemId, ACPI_OEM_ID_SIZE);
122 AcpiTbFixString (OutHeader->OemTableId, ACPI_OEM_TABLE_ID_SIZE);
123 AcpiTbFixString (OutHeader->AslCompilerId, ACPI_NAME_SIZE);
127 /*******************************************************************************
129 * FUNCTION: AcpiTbPrintTableHeader
131 * PARAMETERS: Address - Table physical address
132 * Header - Table header
136 * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
138 ******************************************************************************/
141 AcpiTbPrintTableHeader (
142 ACPI_PHYSICAL_ADDRESS Address,
143 ACPI_TABLE_HEADER *Header)
145 ACPI_TABLE_HEADER LocalHeader;
148 if (ACPI_COMPARE_NAME (Header->Signature, ACPI_SIG_FACS))
150 /* FACS only has signature and length fields */
152 ACPI_INFO (("%-4.4s 0x%8.8X%8.8X %06X",
153 Header->Signature, ACPI_FORMAT_UINT64 (Address),
156 else if (ACPI_VALIDATE_RSDP_SIG (Header->Signature))
158 /* RSDP has no common fields */
160 memcpy (LocalHeader.OemId, ACPI_CAST_PTR (ACPI_TABLE_RSDP,
161 Header)->OemId, ACPI_OEM_ID_SIZE);
162 AcpiTbFixString (LocalHeader.OemId, ACPI_OEM_ID_SIZE);
164 ACPI_INFO (("RSDP 0x%8.8X%8.8X %06X (v%.2d %-6.6s)",
165 ACPI_FORMAT_UINT64 (Address),
166 (ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision > 0) ?
167 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Length : 20,
168 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision,
173 /* Standard ACPI table with full common header */
175 AcpiTbCleanupTableHeader (&LocalHeader, Header);
178 "%-4.4s 0x%8.8X%8.8X"
179 " %06X (v%.2d %-6.6s %-8.8s %08X %-4.4s %08X)",
180 LocalHeader.Signature, ACPI_FORMAT_UINT64 (Address),
181 LocalHeader.Length, LocalHeader.Revision, LocalHeader.OemId,
182 LocalHeader.OemTableId, LocalHeader.OemRevision,
183 LocalHeader.AslCompilerId, LocalHeader.AslCompilerRevision));
188 /*******************************************************************************
190 * FUNCTION: AcpiTbValidateChecksum
192 * PARAMETERS: Table - ACPI table to verify
193 * Length - Length of entire table
197 * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
198 * exception on bad checksum.
200 ******************************************************************************/
203 AcpiTbVerifyChecksum (
204 ACPI_TABLE_HEADER *Table,
212 * They are the odd tables, have no standard ACPI header and no checksum
215 if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_S3PT) ||
216 ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_FACS))
221 /* Compute the checksum on the table */
223 Checksum = AcpiTbChecksum (ACPI_CAST_PTR (UINT8, Table), Length);
225 /* Checksum ok? (should be zero) */
229 ACPI_BIOS_WARNING ((AE_INFO,
230 "Incorrect checksum in table [%4.4s] - 0x%2.2X, "
232 Table->Signature, Table->Checksum,
233 (UINT8) (Table->Checksum - Checksum)));
235 #if (ACPI_CHECKSUM_ABORT)
236 return (AE_BAD_CHECKSUM);
244 /*******************************************************************************
246 * FUNCTION: AcpiTbChecksum
248 * PARAMETERS: Buffer - Pointer to memory region to be checked
249 * Length - Length of this memory region
251 * RETURN: Checksum (UINT8)
253 * DESCRIPTION: Calculates circular checksum of memory region.
255 ******************************************************************************/
263 UINT8 *End = Buffer + Length;
268 Sum = (UINT8) (Sum + *(Buffer++));