1 /******************************************************************************
3 * Module Name: tbprint - Table output utilities
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2013, 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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46 #include <contrib/dev/acpica/include/acpi.h>
47 #include <contrib/dev/acpica/include/accommon.h>
48 #include <contrib/dev/acpica/include/actables.h>
50 #define _COMPONENT ACPI_TABLES
51 ACPI_MODULE_NAME ("tbprint")
54 /* Local prototypes */
62 AcpiTbCleanupTableHeader (
63 ACPI_TABLE_HEADER *OutHeader,
64 ACPI_TABLE_HEADER *Header);
67 /*******************************************************************************
69 * FUNCTION: AcpiTbFixString
71 * PARAMETERS: String - String to be repaired
72 * Length - Maximum length
76 * DESCRIPTION: Replace every non-printable or non-ascii byte in the string
77 * with a question mark '?'.
79 ******************************************************************************/
87 while (Length && *String)
89 if (!ACPI_IS_PRINT (*String))
99 /*******************************************************************************
101 * FUNCTION: AcpiTbCleanupTableHeader
103 * PARAMETERS: OutHeader - Where the cleaned header is returned
104 * Header - Input ACPI table header
106 * RETURN: Returns the cleaned header in OutHeader
108 * DESCRIPTION: Copy the table header and ensure that all "string" fields in
109 * the header consist of printable characters.
111 ******************************************************************************/
114 AcpiTbCleanupTableHeader (
115 ACPI_TABLE_HEADER *OutHeader,
116 ACPI_TABLE_HEADER *Header)
119 ACPI_MEMCPY (OutHeader, Header, sizeof (ACPI_TABLE_HEADER));
121 AcpiTbFixString (OutHeader->Signature, ACPI_NAME_SIZE);
122 AcpiTbFixString (OutHeader->OemId, ACPI_OEM_ID_SIZE);
123 AcpiTbFixString (OutHeader->OemTableId, ACPI_OEM_TABLE_ID_SIZE);
124 AcpiTbFixString (OutHeader->AslCompilerId, ACPI_NAME_SIZE);
128 /*******************************************************************************
130 * FUNCTION: AcpiTbPrintTableHeader
132 * PARAMETERS: Address - Table physical address
133 * Header - Table header
137 * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
139 ******************************************************************************/
142 AcpiTbPrintTableHeader (
143 ACPI_PHYSICAL_ADDRESS Address,
144 ACPI_TABLE_HEADER *Header)
146 ACPI_TABLE_HEADER LocalHeader;
150 * The reason that the Address is cast to a void pointer is so that we
151 * can use %p which will work properly on both 32-bit and 64-bit hosts.
153 if (ACPI_COMPARE_NAME (Header->Signature, ACPI_SIG_FACS))
155 /* FACS only has signature and length fields */
157 ACPI_INFO ((AE_INFO, "%4.4s %p %05X",
158 Header->Signature, ACPI_CAST_PTR (void, Address),
161 else if (ACPI_VALIDATE_RSDP_SIG (Header->Signature))
163 /* RSDP has no common fields */
165 ACPI_MEMCPY (LocalHeader.OemId,
166 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->OemId, ACPI_OEM_ID_SIZE);
167 AcpiTbFixString (LocalHeader.OemId, ACPI_OEM_ID_SIZE);
169 ACPI_INFO ((AE_INFO, "RSDP %p %05X (v%.2d %6.6s)",
170 ACPI_CAST_PTR (void, Address),
171 (ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision > 0) ?
172 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Length : 20,
173 ACPI_CAST_PTR (ACPI_TABLE_RSDP, Header)->Revision,
178 /* Standard ACPI table with full common header */
180 AcpiTbCleanupTableHeader (&LocalHeader, Header);
183 "%4.4s %p %05X (v%.2d %6.6s %8.8s %08X %4.4s %08X)",
184 LocalHeader.Signature, ACPI_CAST_PTR (void, Address),
185 LocalHeader.Length, LocalHeader.Revision, LocalHeader.OemId,
186 LocalHeader.OemTableId, LocalHeader.OemRevision,
187 LocalHeader.AslCompilerId, LocalHeader.AslCompilerRevision));
192 /*******************************************************************************
194 * FUNCTION: AcpiTbValidateChecksum
196 * PARAMETERS: Table - ACPI table to verify
197 * Length - Length of entire table
201 * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
202 * exception on bad checksum.
204 ******************************************************************************/
207 AcpiTbVerifyChecksum (
208 ACPI_TABLE_HEADER *Table,
216 * They are the odd tables, have no standard ACPI header and no checksum
219 if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_S3PT) ||
220 ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_FACS))
225 /* Compute the checksum on the table */
227 Checksum = AcpiTbChecksum (ACPI_CAST_PTR (UINT8, Table), Length);
229 /* Checksum ok? (should be zero) */
233 ACPI_BIOS_WARNING ((AE_INFO,
234 "Incorrect checksum in table [%4.4s] - 0x%2.2X, "
236 Table->Signature, Table->Checksum,
237 (UINT8) (Table->Checksum - Checksum)));
239 #if (ACPI_CHECKSUM_ABORT)
240 return (AE_BAD_CHECKSUM);
248 /*******************************************************************************
250 * FUNCTION: AcpiTbChecksum
252 * PARAMETERS: Buffer - Pointer to memory region to be checked
253 * Length - Length of this memory region
255 * RETURN: Checksum (UINT8)
257 * DESCRIPTION: Calculates circular checksum of memory region.
259 ******************************************************************************/
267 UINT8 *End = Buffer + Length;
272 Sum = (UINT8) (Sum + *(Buffer++));