| 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: tbprint - Table output utilities |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 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. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
| 44 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "actables.h" |
| 47 | |
| 48 | #define _COMPONENT ACPI_TABLES |
| 49 | ACPI_MODULE_NAME ("tbprint" ) |
| 50 | |
| 51 | |
| 52 | /* Local prototypes */ |
| 53 | |
| 54 | static void |
| 55 | AcpiTbFixString ( |
| 56 | char *String, |
| 57 | ACPI_SIZE Length); |
| 58 | |
| 59 | static void |
| 60 | AcpiTbCleanupTableHeader ( |
| 61 | ACPI_TABLE_HEADER *, |
| 62 | ACPI_TABLE_HEADER *); |
| 63 | |
| 64 | |
| 65 | /******************************************************************************* |
| 66 | * |
| 67 | * FUNCTION: AcpiTbFixString |
| 68 | * |
| 69 | * PARAMETERS: String - String to be repaired |
| 70 | * Length - Maximum length |
| 71 | * |
| 72 | * RETURN: None |
| 73 | * |
| 74 | * DESCRIPTION: Replace every non-printable or non-ascii byte in the string |
| 75 | * with a question mark '?'. |
| 76 | * |
| 77 | ******************************************************************************/ |
| 78 | |
| 79 | static void |
| 80 | AcpiTbFixString ( |
| 81 | char *String, |
| 82 | ACPI_SIZE Length) |
| 83 | { |
| 84 | |
| 85 | while (Length && *String) |
| 86 | { |
| 87 | if (!isprint ((int) *String)) |
| 88 | { |
| 89 | *String = '?'; |
| 90 | } |
| 91 | |
| 92 | String++; |
| 93 | Length--; |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | |
| 98 | /******************************************************************************* |
| 99 | * |
| 100 | * FUNCTION: AcpiTbCleanupTableHeader |
| 101 | * |
| 102 | * PARAMETERS: OutHeader - Where the cleaned header is returned |
| 103 | * Header - Input ACPI table header |
| 104 | * |
| 105 | * RETURN: Returns the cleaned header in OutHeader |
| 106 | * |
| 107 | * DESCRIPTION: Copy the table header and ensure that all "string" fields in |
| 108 | * the header consist of printable characters. |
| 109 | * |
| 110 | ******************************************************************************/ |
| 111 | |
| 112 | static void |
| 113 | ( |
| 114 | ACPI_TABLE_HEADER *, |
| 115 | ACPI_TABLE_HEADER *) |
| 116 | { |
| 117 | |
| 118 | memcpy (OutHeader, Header, sizeof (ACPI_TABLE_HEADER)); |
| 119 | |
| 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); |
| 124 | } |
| 125 | |
| 126 | |
| 127 | /******************************************************************************* |
| 128 | * |
| 129 | * FUNCTION: AcpiTbPrintTableHeader |
| 130 | * |
| 131 | * PARAMETERS: Address - Table physical address |
| 132 | * Header - Table header |
| 133 | * |
| 134 | * RETURN: None |
| 135 | * |
| 136 | * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP. |
| 137 | * |
| 138 | ******************************************************************************/ |
| 139 | |
| 140 | void |
| 141 | ( |
| 142 | ACPI_PHYSICAL_ADDRESS Address, |
| 143 | ACPI_TABLE_HEADER *) |
| 144 | { |
| 145 | ACPI_TABLE_HEADER ; |
| 146 | |
| 147 | |
| 148 | if (ACPI_COMPARE_NAME (Header->Signature, ACPI_SIG_FACS)) |
| 149 | { |
| 150 | /* FACS only has signature and length fields */ |
| 151 | |
| 152 | ACPI_INFO (("%-4.4s 0x%8.8X%8.8X %06X" , |
| 153 | Header->Signature, ACPI_FORMAT_UINT64 (Address), |
| 154 | Header->Length)); |
| 155 | } |
| 156 | else if (ACPI_VALIDATE_RSDP_SIG (Header->Signature)) |
| 157 | { |
| 158 | /* RSDP has no common fields */ |
| 159 | |
| 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); |
| 163 | |
| 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, |
| 169 | LocalHeader.OemId)); |
| 170 | } |
| 171 | else |
| 172 | { |
| 173 | /* Standard ACPI table with full common header */ |
| 174 | |
| 175 | AcpiTbCleanupTableHeader (&LocalHeader, Header); |
| 176 | |
| 177 | ACPI_INFO (( |
| 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)); |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | |
| 188 | /******************************************************************************* |
| 189 | * |
| 190 | * FUNCTION: AcpiTbValidateChecksum |
| 191 | * |
| 192 | * PARAMETERS: Table - ACPI table to verify |
| 193 | * Length - Length of entire table |
| 194 | * |
| 195 | * RETURN: Status |
| 196 | * |
| 197 | * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns |
| 198 | * exception on bad checksum. |
| 199 | * |
| 200 | ******************************************************************************/ |
| 201 | |
| 202 | ACPI_STATUS |
| 203 | AcpiTbVerifyChecksum ( |
| 204 | ACPI_TABLE_HEADER *Table, |
| 205 | UINT32 Length) |
| 206 | { |
| 207 | UINT8 Checksum; |
| 208 | |
| 209 | |
| 210 | /* |
| 211 | * FACS/S3PT: |
| 212 | * They are the odd tables, have no standard ACPI header and no checksum |
| 213 | */ |
| 214 | |
| 215 | if (ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_S3PT) || |
| 216 | ACPI_COMPARE_NAME (Table->Signature, ACPI_SIG_FACS)) |
| 217 | { |
| 218 | return (AE_OK); |
| 219 | } |
| 220 | |
| 221 | /* Compute the checksum on the table */ |
| 222 | |
| 223 | Checksum = AcpiTbChecksum (ACPI_CAST_PTR (UINT8, Table), Length); |
| 224 | |
| 225 | /* Checksum ok? (should be zero) */ |
| 226 | |
| 227 | if (Checksum) |
| 228 | { |
| 229 | ACPI_BIOS_WARNING ((AE_INFO, |
| 230 | "Incorrect checksum in table [%4.4s] - 0x%2.2X, " |
| 231 | "should be 0x%2.2X" , |
| 232 | Table->Signature, Table->Checksum, |
| 233 | (UINT8) (Table->Checksum - Checksum))); |
| 234 | |
| 235 | #if (ACPI_CHECKSUM_ABORT) |
| 236 | return (AE_BAD_CHECKSUM); |
| 237 | #endif |
| 238 | } |
| 239 | |
| 240 | return (AE_OK); |
| 241 | } |
| 242 | |
| 243 | |
| 244 | /******************************************************************************* |
| 245 | * |
| 246 | * FUNCTION: AcpiTbChecksum |
| 247 | * |
| 248 | * PARAMETERS: Buffer - Pointer to memory region to be checked |
| 249 | * Length - Length of this memory region |
| 250 | * |
| 251 | * RETURN: Checksum (UINT8) |
| 252 | * |
| 253 | * DESCRIPTION: Calculates circular checksum of memory region. |
| 254 | * |
| 255 | ******************************************************************************/ |
| 256 | |
| 257 | UINT8 |
| 258 | AcpiTbChecksum ( |
| 259 | UINT8 *Buffer, |
| 260 | UINT32 Length) |
| 261 | { |
| 262 | UINT8 Sum = 0; |
| 263 | UINT8 *End = Buffer + Length; |
| 264 | |
| 265 | |
| 266 | while (Buffer < End) |
| 267 | { |
| 268 | Sum = (UINT8) (Sum + *(Buffer++)); |
| 269 | } |
| 270 | |
| 271 | return (Sum); |
| 272 | } |
| 273 | |