1 /****************************************************************************** 2 * 3 * Module Name: psopinfo - AML opcode information functions and dispatch tables 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2014, 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/acpi.h> 45 #include "accommon.h" 46 #include "acparser.h" 47 #include "acopcode.h" 48 #include "amlcode.h" 49 50 #define _COMPONENT ACPI_PARSER 51 ACPI_MODULE_NAME("psopinfo") 52 53 extern const u8 acpi_gbl_short_op_index[]; 54 extern const u8 acpi_gbl_long_op_index[]; 55 56 static const u8 acpi_gbl_argument_count[] = 57 { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 }; 58 59 /******************************************************************************* 60 * 61 * FUNCTION: acpi_ps_get_opcode_info 62 * 63 * PARAMETERS: opcode - The AML opcode 64 * 65 * RETURN: A pointer to the info about the opcode. 66 * 67 * DESCRIPTION: Find AML opcode description based on the opcode. 68 * NOTE: This procedure must ALWAYS return a valid pointer! 69 * 70 ******************************************************************************/ 71 72 const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) 73 { 74 #ifdef ACPI_DEBUG_OUTPUT 75 const char *opcode_name = "Unknown AML opcode"; 76 #endif 77 78 ACPI_FUNCTION_NAME(ps_get_opcode_info); 79 80 /* 81 * Detect normal 8-bit opcode or extended 16-bit opcode 82 */ 83 if (!(opcode & 0xFF00)) { 84 85 /* Simple (8-bit) opcode: 0-255, can't index beyond table */ 86 87 return (&acpi_gbl_aml_op_info 88 [acpi_gbl_short_op_index[(u8)opcode]]); 89 } 90 91 if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) && 92 (((u8)opcode) <= MAX_EXTENDED_OPCODE)) { 93 94 /* Valid extended (16-bit) opcode */ 95 96 return (&acpi_gbl_aml_op_info 97 [acpi_gbl_long_op_index[(u8)opcode]]); 98 } 99 #if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT 100 #include "asldefine.h" 101 102 switch (opcode) { 103 case AML_RAW_DATA_BYTE: 104 opcode_name = "-Raw Data Byte-"; 105 break; 106 107 case AML_RAW_DATA_WORD: 108 opcode_name = "-Raw Data Word-"; 109 break; 110 111 case AML_RAW_DATA_DWORD: 112 opcode_name = "-Raw Data Dword-"; 113 break; 114 115 case AML_RAW_DATA_QWORD: 116 opcode_name = "-Raw Data Qword-"; 117 break; 118 119 case AML_RAW_DATA_BUFFER: 120 opcode_name = "-Raw Data Buffer-"; 121 break; 122 123 case AML_RAW_DATA_CHAIN: 124 opcode_name = "-Raw Data Buffer Chain-"; 125 break; 126 127 case AML_PACKAGE_LENGTH: 128 opcode_name = "-Package Length-"; 129 break; 130 131 case AML_UNASSIGNED_OPCODE: 132 opcode_name = "-Unassigned Opcode-"; 133 break; 134 135 case AML_DEFAULT_ARG_OP: 136 opcode_name = "-Default Arg-"; 137 break; 138 139 default: 140 break; 141 } 142 #endif 143 144 /* Unknown AML opcode */ 145 146 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%4.4X]\n", opcode_name, opcode)); 147 148 return (&acpi_gbl_aml_op_info[_UNK]); 149 } 150 151 /******************************************************************************* 152 * 153 * FUNCTION: acpi_ps_get_opcode_name 154 * 155 * PARAMETERS: opcode - The AML opcode 156 * 157 * RETURN: A pointer to the name of the opcode (ASCII String) 158 * Note: Never returns NULL. 159 * 160 * DESCRIPTION: Translate an opcode into a human-readable string 161 * 162 ******************************************************************************/ 163 164 char *acpi_ps_get_opcode_name(u16 opcode) 165 { 166 #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT) 167 168 const struct acpi_opcode_info *op; 169 170 op = acpi_ps_get_opcode_info(opcode); 171 172 /* Always guaranteed to return a valid pointer */ 173 174 return (op->name); 175 176 #else 177 return ("OpcodeName unavailable"); 178 179 #endif 180 } 181 182 /******************************************************************************* 183 * 184 * FUNCTION: acpi_ps_get_argument_count 185 * 186 * PARAMETERS: op_type - Type associated with the AML opcode 187 * 188 * RETURN: Argument count 189 * 190 * DESCRIPTION: Obtain the number of expected arguments for an AML opcode 191 * 192 ******************************************************************************/ 193 194 u8 acpi_ps_get_argument_count(u32 op_type) 195 { 196 197 if (op_type <= AML_TYPE_EXEC_6A_0T_1R) { 198 return (acpi_gbl_argument_count[op_type]); 199 } 200 201 return (0); 202 } 203 204 /* 205 * This table is directly indexed by the opcodes It returns 206 * an index into the opcode table (acpi_gbl_aml_op_info) 207 */ 208 const u8 acpi_gbl_short_op_index[256] = { 209 /* 0 1 2 3 4 5 6 7 */ 210 /* 8 9 A B C D E F */ 211 /* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK, 212 /* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK, 213 /* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, _UNK, _UNK, _UNK, 214 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 215 /* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 216 /* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX, 217 /* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D, 218 /* 0x38 */ 0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 219 /* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 220 /* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 221 /* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 222 /* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC, 223 /* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 224 /* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK, 225 /* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 226 /* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 227 /* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30, 228 /* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72, 229 /* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74, 230 /* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A, 231 /* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61, 232 /* 0xA8 */ 0x62, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 233 /* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 234 /* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 235 /* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 236 /* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK, 237 /* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 238 /* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 239 /* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 240 /* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 241 /* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 242 /* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45, 243 }; 244 245 /* 246 * This table is indexed by the second opcode of the extended opcode 247 * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info) 248 */ 249 const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = { 250 /* 0 1 2 3 4 5 6 7 */ 251 /* 8 9 A B C D E F */ 252 /* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK, 253 /* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 254 /* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK, 255 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B, 256 /* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 257 /* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK, 258 /* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK, 259 /* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 260 /* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 261 /* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 262 /* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 263 /* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 264 /* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 265 /* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 266 /* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 267 /* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 268 /* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 269 /* 0x88 */ 0x7C, 270 }; 271