1 /****************************************************************************** 2 * 3 * Module Name: psopinfo - AML opcode information functions and dispatch tables 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 "acparser.h" 47 #include "acopcode.h" 48 #include "amlcode.h" 49 50 51 #define _COMPONENT ACPI_PARSER 52 ACPI_MODULE_NAME ("psopinfo") 53 54 55 static const UINT8 AcpiGbl_ArgumentCount[] = {0,1,1,1,1,2,2,2,2,3,3,6}; 56 57 58 /******************************************************************************* 59 * 60 * FUNCTION: AcpiPsGetOpcodeInfo 61 * 62 * PARAMETERS: Opcode - The AML opcode 63 * 64 * RETURN: A pointer to the info about the opcode. 65 * 66 * DESCRIPTION: Find AML opcode description based on the opcode. 67 * NOTE: This procedure must ALWAYS return a valid pointer! 68 * 69 ******************************************************************************/ 70 71 const ACPI_OPCODE_INFO * 72 AcpiPsGetOpcodeInfo ( 73 UINT16 Opcode) 74 { 75 #ifdef ACPI_DEBUG_OUTPUT 76 const char *OpcodeName = "Unknown AML opcode"; 77 #endif 78 79 ACPI_FUNCTION_NAME (PsGetOpcodeInfo); 80 81 82 /* 83 * Detect normal 8-bit opcode or extended 16-bit opcode 84 */ 85 if (!(Opcode & 0xFF00)) 86 { 87 /* Simple (8-bit) opcode: 0-255, can't index beyond table */ 88 89 return (&AcpiGbl_AmlOpInfo [AcpiGbl_ShortOpIndex [(UINT8) Opcode]]); 90 } 91 92 if (((Opcode & 0xFF00) == AML_EXTENDED_OPCODE) && 93 (((UINT8) Opcode) <= MAX_EXTENDED_OPCODE)) 94 { 95 /* Valid extended (16-bit) opcode */ 96 97 return (&AcpiGbl_AmlOpInfo [AcpiGbl_LongOpIndex [(UINT8) Opcode]]); 98 } 99 100 #if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT 101 #include "asldefine.h" 102 103 switch (Opcode) 104 { 105 case AML_RAW_DATA_BYTE: 106 OpcodeName = "-Raw Data Byte-"; 107 break; 108 109 case AML_RAW_DATA_WORD: 110 OpcodeName = "-Raw Data Word-"; 111 break; 112 113 case AML_RAW_DATA_DWORD: 114 OpcodeName = "-Raw Data Dword-"; 115 break; 116 117 case AML_RAW_DATA_QWORD: 118 OpcodeName = "-Raw Data Qword-"; 119 break; 120 121 case AML_RAW_DATA_BUFFER: 122 OpcodeName = "-Raw Data Buffer-"; 123 break; 124 125 case AML_RAW_DATA_CHAIN: 126 OpcodeName = "-Raw Data Buffer Chain-"; 127 break; 128 129 case AML_PACKAGE_LENGTH: 130 OpcodeName = "-Package Length-"; 131 break; 132 133 case AML_UNASSIGNED_OPCODE: 134 OpcodeName = "-Unassigned Opcode-"; 135 break; 136 137 case AML_DEFAULT_ARG_OP: 138 OpcodeName = "-Default Arg-"; 139 break; 140 141 default: 142 break; 143 } 144 #endif 145 146 /* Unknown AML opcode */ 147 148 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 149 "%s [%4.4X]\n", OpcodeName, Opcode)); 150 151 return (&AcpiGbl_AmlOpInfo [_UNK]); 152 } 153 154 155 /******************************************************************************* 156 * 157 * FUNCTION: AcpiPsGetOpcodeName 158 * 159 * PARAMETERS: Opcode - The AML opcode 160 * 161 * RETURN: A pointer to the name of the opcode (ASCII String) 162 * Note: Never returns NULL. 163 * 164 * DESCRIPTION: Translate an opcode into a human-readable string 165 * 166 ******************************************************************************/ 167 168 const char * 169 AcpiPsGetOpcodeName ( 170 UINT16 Opcode) 171 { 172 #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT) 173 174 const ACPI_OPCODE_INFO *Op; 175 176 177 Op = AcpiPsGetOpcodeInfo (Opcode); 178 179 /* Always guaranteed to return a valid pointer */ 180 181 return (Op->Name); 182 183 #else 184 return ("OpcodeName unavailable"); 185 186 #endif 187 } 188 189 190 /******************************************************************************* 191 * 192 * FUNCTION: AcpiPsGetArgumentCount 193 * 194 * PARAMETERS: OpType - Type associated with the AML opcode 195 * 196 * RETURN: Argument count 197 * 198 * DESCRIPTION: Obtain the number of expected arguments for an AML opcode 199 * 200 ******************************************************************************/ 201 202 UINT8 203 AcpiPsGetArgumentCount ( 204 UINT32 OpType) 205 { 206 207 if (OpType <= AML_TYPE_EXEC_6A_0T_1R) 208 { 209 return (AcpiGbl_ArgumentCount[OpType]); 210 } 211 212 return (0); 213 } 214 215 216 /* 217 * This table is directly indexed by the opcodes It returns 218 * an index into the opcode table (AcpiGbl_AmlOpInfo) 219 */ 220 const UINT8 AcpiGbl_ShortOpIndex[256] = 221 { 222 /* 0 1 2 3 4 5 6 7 */ 223 /* 8 9 A B C D E F */ 224 /* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK, 225 /* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK, 226 /* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, 0x81, _UNK, _UNK, 227 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 228 /* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 229 /* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX, 230 /* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D, 231 /* 0x38 */ 0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 232 /* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 233 /* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 234 /* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 235 /* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC, 236 /* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 237 /* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK, 238 /* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 239 /* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 240 /* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30, 241 /* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72, 242 /* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74, 243 /* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A, 244 /* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61, 245 /* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 246 /* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 247 /* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 248 /* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 249 /* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK, 250 /* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 251 /* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 252 /* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 253 /* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 254 /* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 255 /* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45, 256 }; 257 258 /* 259 * This table is indexed by the second opcode of the extended opcode 260 * pair. It returns an index into the opcode table (AcpiGbl_AmlOpInfo) 261 */ 262 const UINT8 AcpiGbl_LongOpIndex[NUM_EXTENDED_OPCODE] = 263 { 264 /* 0 1 2 3 4 5 6 7 */ 265 /* 8 9 A B C D E F */ 266 /* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK, 267 /* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 268 /* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK, 269 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B, 270 /* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 271 /* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK, 272 /* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK, 273 /* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 274 /* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 275 /* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 276 /* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 277 /* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 278 /* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 279 /* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 280 /* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 281 /* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 282 /* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 283 /* 0x88 */ 0x7C, 284 }; 285