1 /******************************************************************************
3 * Module Name: tbprint - Table output utilities
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2015, Intel Corp.
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12 * modification, are permitted provided that the following conditions
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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
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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 (!ACPI_IS_PRINT (*String))
97 /*******************************************************************************
99 * FUNCTION: AcpiTbCleanupTableHeader
101 * PARAMETERS: OutHeader - Where the cleaned header is returned
102 * Header - Input ACPI table header
104 * RETURN: Returns the cleaned header in OutHeader
106 * DESCRIPTION: Copy the table header and ensure that all "string" fields in
107 * the header consist of printable characters.
109 ******************************************************************************/
112 AcpiTbCleanupTableHeader (
113 ACPI_TABLE_HEADER *OutHeader,
114 ACPI_TABLE_HEADER *Header)
117 ACPI_MEMCPY (OutHeader, Header, sizeof (ACPI_TABLE_HEADER));
119 AcpiTbFixString (OutHeader->Signature, ACPI_NAME_SIZE);
120 AcpiTbFixString (OutHeader->OemId, ACPI_OEM_ID_SIZE);
121 AcpiTbFixString (OutHeader->OemTableId, ACPI_OEM_TABLE_ID_SIZE);
122 AcpiTbFixString (OutHeader->AslCompilerId, ACPI_NAME_SIZE);
126 /*******************************************************************************
128 * FUNCTION: AcpiTbPrintTableHeader
130 * PARAMETERS: Address - Table physical address
131 * Header - Table header
135 * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
137 ******************************************************************************/
140 AcpiTbPrintTableHeader (
141 ACPI_PHYSICAL_ADDRESS Address,
142 ACPI_TABLE_HEADER *Header)
144 ACPI_TABLE_HEADER LocalHeader;
147 if (ACPI_COMPARE_NAME (Header->Signature, ACPI_SIG_FACS))
149 /* FACS only has signature and length fields */
151 ACPI_INFO ((AE_INFO, "%-4.4s 0x%8.8X%8.8X %06X",
152 Header->Signature, ACPI_FORMAT_UINT64 (Address),
155 else if (ACPI_VALIDATE_RSDP_SIG (Header->Signature))
157 /* RSDP has no common fields */
159 ACPI_MEMCPY (LocalHeader.OemId,
160 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->OemId, ACPI_OEM_ID_SIZE);
161 AcpiTbFixString (LocalHeader.OemId, ACPI_OEM_ID_SIZE);
163 ACPI_INFO ((AE_INFO, "RSDP 0x%8.8X%8.8X %06X (v%.2d %-6.6s)",
164 ACPI_FORMAT_UINT64 (Address),
165 (ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision > 0) ?
166 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Length : 20,
167 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision,
172 /* Standard ACPI table with full common header */
174 AcpiTbCleanupTableHeader (&LocalHeader, Header);
177 "%-4.4s 0x%8.8X%8.8X"
178 " %06X (v%.2d %-6.6s %-8.8s %08X %-4.4s %08X)",
179 LocalHeader.Signature, ACPI_FORMAT_UINT64 (Address),
180 LocalHeader.Length, LocalHeader.Revision, LocalHeader.OemId,
181 LocalHeader.OemTableId, LocalHeader.OemRevision,
182 LocalHeader.AslCompilerId, LocalHeader.AslCompilerRevision));
187 /*******************************************************************************
189 * FUNCTION: AcpiTbValidateChecksum
191 * PARAMETERS: Table - ACPI table to verify
192 * Length - Length of entire table
196 * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
197 * exception on bad checksum.
199 ******************************************************************************/
202 AcpiTbVerifyChecksum (
203 ACPI_TABLE_HEADER *Table,
211 * They are the odd tables, have no standard ACPI header and no checksum
214 if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_S3PT) ||
215 ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_FACS))
220 /* Compute the checksum on the table */
222 Checksum = AcpiTbChecksum (ACPI_CAST_PTR (UINT8, Table), Length);
224 /* Checksum ok? (should be zero) */
228 ACPI_BIOS_WARNING ((AE_INFO,
229 "Incorrect checksum in table [%4.4s] - 0x%2.2X, "
231 Table->Signature, Table->Checksum,
232 (UINT8) (Table->Checksum - Checksum)));
234 #if (ACPI_CHECKSUM_ABORT)
235 return (AE_BAD_CHECKSUM);
243 /*******************************************************************************
245 * FUNCTION: AcpiTbChecksum
247 * PARAMETERS: Buffer - Pointer to memory region to be checked
248 * Length - Length of this memory region
250 * RETURN: Checksum (UINT8)
252 * DESCRIPTION: Calculates circular checksum of memory region.
254 ******************************************************************************/
262 UINT8 *End = Buffer + Length;
267 Sum = (UINT8) (Sum + *(Buffer++));