1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 2 /****************************************************************************** 3 * 4 * Module Name: psopinfo - AML opcode information functions and dispatch tables 5 * 6 * Copyright (C) 2000 - 2020, Intel Corp. 7 * 8 *****************************************************************************/ 9 10 #include <acpi/acpi.h> 11 #include "accommon.h" 12 #include "acparser.h" 13 #include "acopcode.h" 14 #include "amlcode.h" 15 16 #define _COMPONENT ACPI_PARSER 17 ACPI_MODULE_NAME("psopinfo") 18 19 static const u8 acpi_gbl_argument_count[] = 20 { 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 }; 21 22 /******************************************************************************* 23 * 24 * FUNCTION: acpi_ps_get_opcode_info 25 * 26 * PARAMETERS: opcode - The AML opcode 27 * 28 * RETURN: A pointer to the info about the opcode. 29 * 30 * DESCRIPTION: Find AML opcode description based on the opcode. 31 * NOTE: This procedure must ALWAYS return a valid pointer! 32 * 33 ******************************************************************************/ 34 35 const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) 36 { 37 #ifdef ACPI_DEBUG_OUTPUT 38 const char *opcode_name = "Unknown AML opcode"; 39 #endif 40 41 ACPI_FUNCTION_NAME(ps_get_opcode_info); 42 43 /* 44 * Detect normal 8-bit opcode or extended 16-bit opcode 45 */ 46 if (!(opcode & 0xFF00)) { 47 48 /* Simple (8-bit) opcode: 0-255, can't index beyond table */ 49 50 return (&acpi_gbl_aml_op_info 51 [acpi_gbl_short_op_index[(u8)opcode]]); 52 } 53 54 if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) && 55 (((u8)opcode) <= MAX_EXTENDED_OPCODE)) { 56 57 /* Valid extended (16-bit) opcode */ 58 59 return (&acpi_gbl_aml_op_info 60 [acpi_gbl_long_op_index[(u8)opcode]]); 61 } 62 #if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT 63 #include "asldefine.h" 64 65 switch (opcode) { 66 case AML_RAW_DATA_BYTE: 67 opcode_name = "-Raw Data Byte-"; 68 break; 69 70 case AML_RAW_DATA_WORD: 71 opcode_name = "-Raw Data Word-"; 72 break; 73 74 case AML_RAW_DATA_DWORD: 75 opcode_name = "-Raw Data Dword-"; 76 break; 77 78 case AML_RAW_DATA_QWORD: 79 opcode_name = "-Raw Data Qword-"; 80 break; 81 82 case AML_RAW_DATA_BUFFER: 83 opcode_name = "-Raw Data Buffer-"; 84 break; 85 86 case AML_RAW_DATA_CHAIN: 87 opcode_name = "-Raw Data Buffer Chain-"; 88 break; 89 90 case AML_PACKAGE_LENGTH: 91 opcode_name = "-Package Length-"; 92 break; 93 94 case AML_UNASSIGNED_OPCODE: 95 opcode_name = "-Unassigned Opcode-"; 96 break; 97 98 case AML_DEFAULT_ARG_OP: 99 opcode_name = "-Default Arg-"; 100 break; 101 102 default: 103 break; 104 } 105 #endif 106 107 /* Unknown AML opcode */ 108 109 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%4.4X]\n", opcode_name, opcode)); 110 111 return (&acpi_gbl_aml_op_info[_UNK]); 112 } 113 114 /******************************************************************************* 115 * 116 * FUNCTION: acpi_ps_get_opcode_name 117 * 118 * PARAMETERS: opcode - The AML opcode 119 * 120 * RETURN: A pointer to the name of the opcode (ASCII String) 121 * Note: Never returns NULL. 122 * 123 * DESCRIPTION: Translate an opcode into a human-readable string 124 * 125 ******************************************************************************/ 126 127 const char *acpi_ps_get_opcode_name(u16 opcode) 128 { 129 #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUG_OUTPUT) 130 131 const struct acpi_opcode_info *op; 132 133 op = acpi_ps_get_opcode_info(opcode); 134 135 /* Always guaranteed to return a valid pointer */ 136 137 return (op->name); 138 139 #else 140 return ("OpcodeName unavailable"); 141 142 #endif 143 } 144 145 /******************************************************************************* 146 * 147 * FUNCTION: acpi_ps_get_argument_count 148 * 149 * PARAMETERS: op_type - Type associated with the AML opcode 150 * 151 * RETURN: Argument count 152 * 153 * DESCRIPTION: Obtain the number of expected arguments for an AML opcode 154 * 155 ******************************************************************************/ 156 157 u8 acpi_ps_get_argument_count(u32 op_type) 158 { 159 160 if (op_type <= AML_TYPE_EXEC_6A_0T_1R) { 161 return (acpi_gbl_argument_count[op_type]); 162 } 163 164 return (0); 165 } 166 167 /* 168 * This table is directly indexed by the opcodes It returns 169 * an index into the opcode table (acpi_gbl_aml_op_info) 170 */ 171 const u8 acpi_gbl_short_op_index[256] = { 172 /* 0 1 2 3 4 5 6 7 */ 173 /* 8 9 A B C D E F */ 174 /* 0x00 */ 0x00, 0x01, _UNK, _UNK, _UNK, _UNK, 0x02, _UNK, 175 /* 0x08 */ 0x03, _UNK, 0x04, 0x05, 0x06, 0x07, 0x6E, _UNK, 176 /* 0x10 */ 0x08, 0x09, 0x0a, 0x6F, 0x0b, 0x81, _UNK, _UNK, 177 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 178 /* 0x20 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 179 /* 0x28 */ _UNK, _UNK, _UNK, _UNK, _UNK, 0x63, _PFX, _PFX, 180 /* 0x30 */ 0x67, 0x66, 0x68, 0x65, 0x69, 0x64, 0x6A, 0x7D, 181 /* 0x38 */ 0x7F, 0x80, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 182 /* 0x40 */ _UNK, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 183 /* 0x48 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 184 /* 0x50 */ _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, _ASC, 185 /* 0x58 */ _ASC, _ASC, _ASC, _UNK, _PFX, _UNK, _PFX, _ASC, 186 /* 0x60 */ 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 187 /* 0x68 */ 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, _UNK, 188 /* 0x70 */ 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 189 /* 0x78 */ 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 190 /* 0x80 */ 0x2b, 0x2c, 0x2d, 0x2e, 0x70, 0x71, 0x2f, 0x30, 191 /* 0x88 */ 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x72, 192 /* 0x90 */ 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x73, 0x74, 193 /* 0x98 */ 0x75, 0x76, _UNK, _UNK, 0x77, 0x78, 0x79, 0x7A, 194 /* 0xA0 */ 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x60, 0x61, 195 /* 0xA8 */ 0x62, 0x82, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 196 /* 0xB0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 197 /* 0xB8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 198 /* 0xC0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 199 /* 0xC8 */ _UNK, _UNK, _UNK, _UNK, 0x44, _UNK, _UNK, _UNK, 200 /* 0xD0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 201 /* 0xD8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 202 /* 0xE0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 203 /* 0xE8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 204 /* 0xF0 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 205 /* 0xF8 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x45, 206 }; 207 208 /* 209 * This table is indexed by the second opcode of the extended opcode 210 * pair. It returns an index into the opcode table (acpi_gbl_aml_op_info) 211 */ 212 const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = { 213 /* 0 1 2 3 4 5 6 7 */ 214 /* 8 9 A B C D E F */ 215 /* 0x00 */ _UNK, 0x46, 0x47, _UNK, _UNK, _UNK, _UNK, _UNK, 216 /* 0x08 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 217 /* 0x10 */ _UNK, _UNK, 0x48, 0x49, _UNK, _UNK, _UNK, _UNK, 218 /* 0x18 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 0x7B, 219 /* 0x20 */ 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 220 /* 0x28 */ 0x52, 0x53, 0x54, _UNK, _UNK, _UNK, _UNK, _UNK, 221 /* 0x30 */ 0x55, 0x56, 0x57, 0x7e, _UNK, _UNK, _UNK, _UNK, 222 /* 0x38 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 223 /* 0x40 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 224 /* 0x48 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 225 /* 0x50 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 226 /* 0x58 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 227 /* 0x60 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 228 /* 0x68 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 229 /* 0x70 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 230 /* 0x78 */ _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, _UNK, 231 /* 0x80 */ 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 232 /* 0x88 */ 0x7C, 233 }; 234