psutils.c revision 1.1.1.2.4.2
1 1.1.1.2.4.2 rmind /****************************************************************************** 2 1.1.1.2.4.2 rmind * 3 1.1.1.2.4.2 rmind * Module Name: psutils - Parser miscellaneous utilities (Parser only) 4 1.1.1.2.4.2 rmind * 5 1.1.1.2.4.2 rmind *****************************************************************************/ 6 1.1.1.2.4.2 rmind 7 1.1.1.2.4.2 rmind /* 8 1.1.1.2.4.2 rmind * Copyright (C) 2000 - 2011, Intel Corp. 9 1.1.1.2.4.2 rmind * All rights reserved. 10 1.1.1.2.4.2 rmind * 11 1.1.1.2.4.2 rmind * Redistribution and use in source and binary forms, with or without 12 1.1.1.2.4.2 rmind * modification, are permitted provided that the following conditions 13 1.1.1.2.4.2 rmind * are met: 14 1.1.1.2.4.2 rmind * 1. Redistributions of source code must retain the above copyright 15 1.1.1.2.4.2 rmind * notice, this list of conditions, and the following disclaimer, 16 1.1.1.2.4.2 rmind * without modification. 17 1.1.1.2.4.2 rmind * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.1.1.2.4.2 rmind * substantially similar to the "NO WARRANTY" disclaimer below 19 1.1.1.2.4.2 rmind * ("Disclaimer") and any redistribution must be conditioned upon 20 1.1.1.2.4.2 rmind * including a substantially similar Disclaimer requirement for further 21 1.1.1.2.4.2 rmind * binary redistribution. 22 1.1.1.2.4.2 rmind * 3. Neither the names of the above-listed copyright holders nor the names 23 1.1.1.2.4.2 rmind * of any contributors may be used to endorse or promote products derived 24 1.1.1.2.4.2 rmind * from this software without specific prior written permission. 25 1.1.1.2.4.2 rmind * 26 1.1.1.2.4.2 rmind * Alternatively, this software may be distributed under the terms of the 27 1.1.1.2.4.2 rmind * GNU General Public License ("GPL") version 2 as published by the Free 28 1.1.1.2.4.2 rmind * Software Foundation. 29 1.1.1.2.4.2 rmind * 30 1.1.1.2.4.2 rmind * NO WARRANTY 31 1.1.1.2.4.2 rmind * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.1.1.2.4.2 rmind * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.1.1.2.4.2 rmind * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.1.1.2.4.2 rmind * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.1.1.2.4.2 rmind * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.1.1.2.4.2 rmind * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.1.1.2.4.2 rmind * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.1.1.2.4.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.1.1.2.4.2 rmind * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.1.1.2.4.2 rmind * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.1.1.2.4.2 rmind * POSSIBILITY OF SUCH DAMAGES. 42 1.1.1.2.4.2 rmind */ 43 1.1.1.2.4.2 rmind 44 1.1.1.2.4.2 rmind 45 1.1.1.2.4.2 rmind #include "acpi.h" 46 1.1.1.2.4.2 rmind #include "accommon.h" 47 1.1.1.2.4.2 rmind #include "acparser.h" 48 1.1.1.2.4.2 rmind #include "amlcode.h" 49 1.1.1.2.4.2 rmind 50 1.1.1.2.4.2 rmind #define _COMPONENT ACPI_PARSER 51 1.1.1.2.4.2 rmind ACPI_MODULE_NAME ("psutils") 52 1.1.1.2.4.2 rmind 53 1.1.1.2.4.2 rmind 54 1.1.1.2.4.2 rmind /******************************************************************************* 55 1.1.1.2.4.2 rmind * 56 1.1.1.2.4.2 rmind * FUNCTION: AcpiPsCreateScopeOp 57 1.1.1.2.4.2 rmind * 58 1.1.1.2.4.2 rmind * PARAMETERS: None 59 1.1.1.2.4.2 rmind * 60 1.1.1.2.4.2 rmind * RETURN: A new Scope object, null on failure 61 1.1.1.2.4.2 rmind * 62 1.1.1.2.4.2 rmind * DESCRIPTION: Create a Scope and associated namepath op with the root name 63 1.1.1.2.4.2 rmind * 64 1.1.1.2.4.2 rmind ******************************************************************************/ 65 1.1.1.2.4.2 rmind 66 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT * 67 1.1.1.2.4.2 rmind AcpiPsCreateScopeOp ( 68 1.1.1.2.4.2 rmind void) 69 1.1.1.2.4.2 rmind { 70 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT *ScopeOp; 71 1.1.1.2.4.2 rmind 72 1.1.1.2.4.2 rmind 73 1.1.1.2.4.2 rmind ScopeOp = AcpiPsAllocOp (AML_SCOPE_OP); 74 1.1.1.2.4.2 rmind if (!ScopeOp) 75 1.1.1.2.4.2 rmind { 76 1.1.1.2.4.2 rmind return (NULL); 77 1.1.1.2.4.2 rmind } 78 1.1.1.2.4.2 rmind 79 1.1.1.2.4.2 rmind ScopeOp->Named.Name = ACPI_ROOT_NAME; 80 1.1.1.2.4.2 rmind return (ScopeOp); 81 1.1.1.2.4.2 rmind } 82 1.1.1.2.4.2 rmind 83 1.1.1.2.4.2 rmind 84 1.1.1.2.4.2 rmind /******************************************************************************* 85 1.1.1.2.4.2 rmind * 86 1.1.1.2.4.2 rmind * FUNCTION: AcpiPsInitOp 87 1.1.1.2.4.2 rmind * 88 1.1.1.2.4.2 rmind * PARAMETERS: Op - A newly allocated Op object 89 1.1.1.2.4.2 rmind * Opcode - Opcode to store in the Op 90 1.1.1.2.4.2 rmind * 91 1.1.1.2.4.2 rmind * RETURN: None 92 1.1.1.2.4.2 rmind * 93 1.1.1.2.4.2 rmind * DESCRIPTION: Initialize a parse (Op) object 94 1.1.1.2.4.2 rmind * 95 1.1.1.2.4.2 rmind ******************************************************************************/ 96 1.1.1.2.4.2 rmind 97 1.1.1.2.4.2 rmind void 98 1.1.1.2.4.2 rmind AcpiPsInitOp ( 99 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT *Op, 100 1.1.1.2.4.2 rmind UINT16 Opcode) 101 1.1.1.2.4.2 rmind { 102 1.1.1.2.4.2 rmind ACPI_FUNCTION_ENTRY (); 103 1.1.1.2.4.2 rmind 104 1.1.1.2.4.2 rmind 105 1.1.1.2.4.2 rmind Op->Common.DescriptorType = ACPI_DESC_TYPE_PARSER; 106 1.1.1.2.4.2 rmind Op->Common.AmlOpcode = Opcode; 107 1.1.1.2.4.2 rmind 108 1.1.1.2.4.2 rmind ACPI_DISASM_ONLY_MEMBERS (ACPI_STRNCPY (Op->Common.AmlOpName, 109 1.1.1.2.4.2 rmind (AcpiPsGetOpcodeInfo (Opcode))->Name, 110 1.1.1.2.4.2 rmind sizeof (Op->Common.AmlOpName))); 111 1.1.1.2.4.2 rmind } 112 1.1.1.2.4.2 rmind 113 1.1.1.2.4.2 rmind 114 1.1.1.2.4.2 rmind /******************************************************************************* 115 1.1.1.2.4.2 rmind * 116 1.1.1.2.4.2 rmind * FUNCTION: AcpiPsAllocOp 117 1.1.1.2.4.2 rmind * 118 1.1.1.2.4.2 rmind * PARAMETERS: Opcode - Opcode that will be stored in the new Op 119 1.1.1.2.4.2 rmind * 120 1.1.1.2.4.2 rmind * RETURN: Pointer to the new Op, null on failure 121 1.1.1.2.4.2 rmind * 122 1.1.1.2.4.2 rmind * DESCRIPTION: Allocate an acpi_op, choose op type (and thus size) based on 123 1.1.1.2.4.2 rmind * opcode. A cache of opcodes is available for the pure 124 1.1.1.2.4.2 rmind * GENERIC_OP, since this is by far the most commonly used. 125 1.1.1.2.4.2 rmind * 126 1.1.1.2.4.2 rmind ******************************************************************************/ 127 1.1.1.2.4.2 rmind 128 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT* 129 1.1.1.2.4.2 rmind AcpiPsAllocOp ( 130 1.1.1.2.4.2 rmind UINT16 Opcode) 131 1.1.1.2.4.2 rmind { 132 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT *Op; 133 1.1.1.2.4.2 rmind const ACPI_OPCODE_INFO *OpInfo; 134 1.1.1.2.4.2 rmind UINT8 Flags = ACPI_PARSEOP_GENERIC; 135 1.1.1.2.4.2 rmind 136 1.1.1.2.4.2 rmind 137 1.1.1.2.4.2 rmind ACPI_FUNCTION_ENTRY (); 138 1.1.1.2.4.2 rmind 139 1.1.1.2.4.2 rmind 140 1.1.1.2.4.2 rmind OpInfo = AcpiPsGetOpcodeInfo (Opcode); 141 1.1.1.2.4.2 rmind 142 1.1.1.2.4.2 rmind /* Determine type of ParseOp required */ 143 1.1.1.2.4.2 rmind 144 1.1.1.2.4.2 rmind if (OpInfo->Flags & AML_DEFER) 145 1.1.1.2.4.2 rmind { 146 1.1.1.2.4.2 rmind Flags = ACPI_PARSEOP_DEFERRED; 147 1.1.1.2.4.2 rmind } 148 1.1.1.2.4.2 rmind else if (OpInfo->Flags & AML_NAMED) 149 1.1.1.2.4.2 rmind { 150 1.1.1.2.4.2 rmind Flags = ACPI_PARSEOP_NAMED; 151 1.1.1.2.4.2 rmind } 152 1.1.1.2.4.2 rmind else if (Opcode == AML_INT_BYTELIST_OP) 153 1.1.1.2.4.2 rmind { 154 1.1.1.2.4.2 rmind Flags = ACPI_PARSEOP_BYTELIST; 155 1.1.1.2.4.2 rmind } 156 1.1.1.2.4.2 rmind 157 1.1.1.2.4.2 rmind /* Allocate the minimum required size object */ 158 1.1.1.2.4.2 rmind 159 1.1.1.2.4.2 rmind if (Flags == ACPI_PARSEOP_GENERIC) 160 1.1.1.2.4.2 rmind { 161 1.1.1.2.4.2 rmind /* The generic op (default) is by far the most common (16 to 1) */ 162 1.1.1.2.4.2 rmind 163 1.1.1.2.4.2 rmind Op = AcpiOsAcquireObject (AcpiGbl_PsNodeCache); 164 1.1.1.2.4.2 rmind } 165 1.1.1.2.4.2 rmind else 166 1.1.1.2.4.2 rmind { 167 1.1.1.2.4.2 rmind /* Extended parseop */ 168 1.1.1.2.4.2 rmind 169 1.1.1.2.4.2 rmind Op = AcpiOsAcquireObject (AcpiGbl_PsNodeExtCache); 170 1.1.1.2.4.2 rmind } 171 1.1.1.2.4.2 rmind 172 1.1.1.2.4.2 rmind /* Initialize the Op */ 173 1.1.1.2.4.2 rmind 174 1.1.1.2.4.2 rmind if (Op) 175 1.1.1.2.4.2 rmind { 176 1.1.1.2.4.2 rmind AcpiPsInitOp (Op, Opcode); 177 1.1.1.2.4.2 rmind Op->Common.Flags = Flags; 178 1.1.1.2.4.2 rmind } 179 1.1.1.2.4.2 rmind 180 1.1.1.2.4.2 rmind return (Op); 181 1.1.1.2.4.2 rmind } 182 1.1.1.2.4.2 rmind 183 1.1.1.2.4.2 rmind 184 1.1.1.2.4.2 rmind /******************************************************************************* 185 1.1.1.2.4.2 rmind * 186 1.1.1.2.4.2 rmind * FUNCTION: AcpiPsFreeOp 187 1.1.1.2.4.2 rmind * 188 1.1.1.2.4.2 rmind * PARAMETERS: Op - Op to be freed 189 1.1.1.2.4.2 rmind * 190 1.1.1.2.4.2 rmind * RETURN: None. 191 1.1.1.2.4.2 rmind * 192 1.1.1.2.4.2 rmind * DESCRIPTION: Free an Op object. Either put it on the GENERIC_OP cache list 193 1.1.1.2.4.2 rmind * or actually free it. 194 1.1.1.2.4.2 rmind * 195 1.1.1.2.4.2 rmind ******************************************************************************/ 196 1.1.1.2.4.2 rmind 197 1.1.1.2.4.2 rmind void 198 1.1.1.2.4.2 rmind AcpiPsFreeOp ( 199 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT *Op) 200 1.1.1.2.4.2 rmind { 201 1.1.1.2.4.2 rmind ACPI_FUNCTION_NAME (PsFreeOp); 202 1.1.1.2.4.2 rmind 203 1.1.1.2.4.2 rmind 204 1.1.1.2.4.2 rmind if (Op->Common.AmlOpcode == AML_INT_RETURN_VALUE_OP) 205 1.1.1.2.4.2 rmind { 206 1.1.1.2.4.2 rmind ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n", Op)); 207 1.1.1.2.4.2 rmind } 208 1.1.1.2.4.2 rmind 209 1.1.1.2.4.2 rmind if (Op->Common.Flags & ACPI_PARSEOP_GENERIC) 210 1.1.1.2.4.2 rmind { 211 1.1.1.2.4.2 rmind (void) AcpiOsReleaseObject (AcpiGbl_PsNodeCache, Op); 212 1.1.1.2.4.2 rmind } 213 1.1.1.2.4.2 rmind else 214 1.1.1.2.4.2 rmind { 215 1.1.1.2.4.2 rmind (void) AcpiOsReleaseObject (AcpiGbl_PsNodeExtCache, Op); 216 1.1.1.2.4.2 rmind } 217 1.1.1.2.4.2 rmind } 218 1.1.1.2.4.2 rmind 219 1.1.1.2.4.2 rmind 220 1.1.1.2.4.2 rmind /******************************************************************************* 221 1.1.1.2.4.2 rmind * 222 1.1.1.2.4.2 rmind * FUNCTION: Utility functions 223 1.1.1.2.4.2 rmind * 224 1.1.1.2.4.2 rmind * DESCRIPTION: Low level character and object functions 225 1.1.1.2.4.2 rmind * 226 1.1.1.2.4.2 rmind ******************************************************************************/ 227 1.1.1.2.4.2 rmind 228 1.1.1.2.4.2 rmind 229 1.1.1.2.4.2 rmind /* 230 1.1.1.2.4.2 rmind * Is "c" a namestring lead character? 231 1.1.1.2.4.2 rmind */ 232 1.1.1.2.4.2 rmind BOOLEAN 233 1.1.1.2.4.2 rmind AcpiPsIsLeadingChar ( 234 1.1.1.2.4.2 rmind UINT32 c) 235 1.1.1.2.4.2 rmind { 236 1.1.1.2.4.2 rmind return ((BOOLEAN) (c == '_' || (c >= 'A' && c <= 'Z'))); 237 1.1.1.2.4.2 rmind } 238 1.1.1.2.4.2 rmind 239 1.1.1.2.4.2 rmind 240 1.1.1.2.4.2 rmind /* 241 1.1.1.2.4.2 rmind * Is "c" a namestring prefix character? 242 1.1.1.2.4.2 rmind */ 243 1.1.1.2.4.2 rmind BOOLEAN 244 1.1.1.2.4.2 rmind AcpiPsIsPrefixChar ( 245 1.1.1.2.4.2 rmind UINT32 c) 246 1.1.1.2.4.2 rmind { 247 1.1.1.2.4.2 rmind return ((BOOLEAN) (c == '\\' || c == '^')); 248 1.1.1.2.4.2 rmind } 249 1.1.1.2.4.2 rmind 250 1.1.1.2.4.2 rmind 251 1.1.1.2.4.2 rmind /* 252 1.1.1.2.4.2 rmind * Get op's name (4-byte name segment) or 0 if unnamed 253 1.1.1.2.4.2 rmind */ 254 1.1.1.2.4.2 rmind UINT32 255 1.1.1.2.4.2 rmind AcpiPsGetName ( 256 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT *Op) 257 1.1.1.2.4.2 rmind { 258 1.1.1.2.4.2 rmind 259 1.1.1.2.4.2 rmind /* The "generic" object has no name associated with it */ 260 1.1.1.2.4.2 rmind 261 1.1.1.2.4.2 rmind if (Op->Common.Flags & ACPI_PARSEOP_GENERIC) 262 1.1.1.2.4.2 rmind { 263 1.1.1.2.4.2 rmind return (0); 264 1.1.1.2.4.2 rmind } 265 1.1.1.2.4.2 rmind 266 1.1.1.2.4.2 rmind /* Only the "Extended" parse objects have a name */ 267 1.1.1.2.4.2 rmind 268 1.1.1.2.4.2 rmind return (Op->Named.Name); 269 1.1.1.2.4.2 rmind } 270 1.1.1.2.4.2 rmind 271 1.1.1.2.4.2 rmind 272 1.1.1.2.4.2 rmind /* 273 1.1.1.2.4.2 rmind * Set op's name 274 1.1.1.2.4.2 rmind */ 275 1.1.1.2.4.2 rmind void 276 1.1.1.2.4.2 rmind AcpiPsSetName ( 277 1.1.1.2.4.2 rmind ACPI_PARSE_OBJECT *Op, 278 1.1.1.2.4.2 rmind UINT32 name) 279 1.1.1.2.4.2 rmind { 280 1.1.1.2.4.2 rmind 281 1.1.1.2.4.2 rmind /* The "generic" object has no name associated with it */ 282 1.1.1.2.4.2 rmind 283 1.1.1.2.4.2 rmind if (Op->Common.Flags & ACPI_PARSEOP_GENERIC) 284 1.1.1.2.4.2 rmind { 285 1.1.1.2.4.2 rmind return; 286 1.1.1.2.4.2 rmind } 287 1.1.1.2.4.2 rmind 288 1.1.1.2.4.2 rmind Op->Named.Name = name; 289 1.1.1.2.4.2 rmind } 290 1.1.1.2.4.2 rmind 291
Indexes created Wed Oct 01 19:09:53 GMT 2025