1 /****************************************************************************** 2 * 3 * Module Name: utpredef - support functions for predefined names 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "acpi.h" 153 #include "accommon.h" 154 #include "acpredef.h" 155 156 157 #define _COMPONENT ACPI_UTILITIES 158 ACPI_MODULE_NAME ("utpredef") 159 160 161 /* 162 * Names for the types that can be returned by the predefined objects. 163 * Used for warning messages. Must be in the same order as the ACPI_RTYPEs 164 */ 165 static const char *UtRtypeNames[] = 166 { 167 "/Integer", 168 "/String", 169 "/Buffer", 170 "/Package", 171 "/Reference", 172 }; 173 174 175 /******************************************************************************* 176 * 177 * FUNCTION: AcpiUtGetNextPredefinedMethod 178 * 179 * PARAMETERS: ThisName - Entry in the predefined method/name table 180 * 181 * RETURN: Pointer to next entry in predefined table. 182 * 183 * DESCRIPTION: Get the next entry in the predefine method table. Handles the 184 * cases where a package info entry follows a method name that 185 * returns a package. 186 * 187 ******************************************************************************/ 188 189 const ACPI_PREDEFINED_INFO * 190 AcpiUtGetNextPredefinedMethod ( 191 const ACPI_PREDEFINED_INFO *ThisName) 192 { 193 194 /* 195 * Skip next entry in the table if this name returns a Package 196 * (next entry contains the package info) 197 */ 198 if ((ThisName->Info.ExpectedBtypes & ACPI_RTYPE_PACKAGE) && 199 (ThisName->Info.ExpectedBtypes != ACPI_RTYPE_ALL)) 200 { 201 ThisName++; 202 } 203 204 ThisName++; 205 return (ThisName); 206 } 207 208 209 /******************************************************************************* 210 * 211 * FUNCTION: AcpiUtMatchPredefinedMethod 212 * 213 * PARAMETERS: Name - Name to find 214 * 215 * RETURN: Pointer to entry in predefined table. NULL indicates not found. 216 * 217 * DESCRIPTION: Check an object name against the predefined object list. 218 * 219 ******************************************************************************/ 220 221 const ACPI_PREDEFINED_INFO * 222 AcpiUtMatchPredefinedMethod ( 223 char *Name) 224 { 225 const ACPI_PREDEFINED_INFO *ThisName; 226 227 228 /* Quick check for a predefined name, first character must be underscore */ 229 230 if (Name[0] != '_') 231 { 232 return (NULL); 233 } 234 235 /* Search info table for a predefined method/object name */ 236 237 ThisName = AcpiGbl_PredefinedMethods; 238 while (ThisName->Info.Name[0]) 239 { 240 if (ACPI_COMPARE_NAME (Name, ThisName->Info.Name)) 241 { 242 return (ThisName); 243 } 244 245 ThisName = AcpiUtGetNextPredefinedMethod (ThisName); 246 } 247 248 return (NULL); /* Not found */ 249 } 250 251 252 /******************************************************************************* 253 * 254 * FUNCTION: AcpiUtGetExpectedReturnTypes 255 * 256 * PARAMETERS: Buffer - Where the formatted string is returned 257 * ExpectedBTypes - Bitfield of expected data types 258 * 259 * RETURN: Formatted string in Buffer. 260 * 261 * DESCRIPTION: Format the expected object types into a printable string. 262 * 263 ******************************************************************************/ 264 265 void 266 AcpiUtGetExpectedReturnTypes ( 267 char *Buffer, 268 UINT32 ExpectedBtypes) 269 { 270 UINT32 ThisRtype; 271 UINT32 i; 272 UINT32 j; 273 274 275 if (!ExpectedBtypes) 276 { 277 strcpy (Buffer, "NONE"); 278 return; 279 } 280 281 j = 1; 282 Buffer[0] = 0; 283 ThisRtype = ACPI_RTYPE_INTEGER; 284 285 for (i = 0; i < ACPI_NUM_RTYPES; i++) 286 { 287 /* If one of the expected types, concatenate the name of this type */ 288 289 if (ExpectedBtypes & ThisRtype) 290 { 291 strcat (Buffer, &UtRtypeNames[i][j]); 292 j = 0; /* Use name separator from now on */ 293 } 294 295 ThisRtype <<= 1; /* Next Rtype */ 296 } 297 } 298 299 300 /******************************************************************************* 301 * 302 * The remaining functions are used by iASL and AcpiHelp only 303 * 304 ******************************************************************************/ 305 306 #if (defined ACPI_ASL_COMPILER || defined ACPI_HELP_APP) 307 308 /* Local prototypes */ 309 310 static UINT32 311 AcpiUtGetArgumentTypes ( 312 char *Buffer, 313 UINT16 ArgumentTypes); 314 315 316 /* Types that can be returned externally by a predefined name */ 317 318 static const char *UtExternalTypeNames[] = /* Indexed by ACPI_TYPE_* */ 319 { 320 ", UNSUPPORTED-TYPE", 321 ", Integer", 322 ", String", 323 ", Buffer", 324 ", Package" 325 }; 326 327 /* Bit widths for resource descriptor predefined names */ 328 329 static const char *UtResourceTypeNames[] = 330 { 331 "/1", 332 "/2", 333 "/3", 334 "/8", 335 "/16", 336 "/32", 337 "/64", 338 "/variable", 339 }; 340 341 342 /******************************************************************************* 343 * 344 * FUNCTION: AcpiUtMatchResourceName 345 * 346 * PARAMETERS: Name - Name to find 347 * 348 * RETURN: Pointer to entry in the resource table. NULL indicates not 349 * found. 350 * 351 * DESCRIPTION: Check an object name against the predefined resource 352 * descriptor object list. 353 * 354 ******************************************************************************/ 355 356 const ACPI_PREDEFINED_INFO * 357 AcpiUtMatchResourceName ( 358 char *Name) 359 { 360 const ACPI_PREDEFINED_INFO *ThisName; 361 362 363 /* 364 * Quick check for a predefined name, first character must 365 * be underscore 366 */ 367 if (Name[0] != '_') 368 { 369 return (NULL); 370 } 371 372 /* Search info table for a predefined method/object name */ 373 374 ThisName = AcpiGbl_ResourceNames; 375 while (ThisName->Info.Name[0]) 376 { 377 if (ACPI_COMPARE_NAME (Name, ThisName->Info.Name)) 378 { 379 return (ThisName); 380 } 381 382 ThisName++; 383 } 384 385 return (NULL); /* Not found */ 386 } 387 388 389 /******************************************************************************* 390 * 391 * FUNCTION: AcpiUtDisplayPredefinedMethod 392 * 393 * PARAMETERS: Buffer - Scratch buffer for this function 394 * ThisName - Entry in the predefined method/name table 395 * MultiLine - TRUE if output should be on >1 line 396 * 397 * RETURN: None 398 * 399 * DESCRIPTION: Display information about a predefined method. Number and 400 * type of the input arguments, and expected type(s) for the 401 * return value, if any. 402 * 403 ******************************************************************************/ 404 405 void 406 AcpiUtDisplayPredefinedMethod ( 407 char *Buffer, 408 const ACPI_PREDEFINED_INFO *ThisName, 409 BOOLEAN MultiLine) 410 { 411 UINT32 ArgCount; 412 413 /* 414 * Get the argument count and the string buffer 415 * containing all argument types 416 */ 417 ArgCount = AcpiUtGetArgumentTypes (Buffer, 418 ThisName->Info.ArgumentList); 419 420 if (MultiLine) 421 { 422 printf (" "); 423 } 424 425 printf ("%4.4s Requires %s%u argument%s", 426 ThisName->Info.Name, 427 (ThisName->Info.ArgumentList & ARG_COUNT_IS_MINIMUM) ? 428 "(at least) " : "", 429 ArgCount, ArgCount != 1 ? "s" : ""); 430 431 /* Display the types for any arguments */ 432 433 if (ArgCount > 0) 434 { 435 printf (" (%s)", Buffer); 436 } 437 438 if (MultiLine) 439 { 440 printf ("\n "); 441 } 442 443 /* Get the return value type(s) allowed */ 444 445 if (ThisName->Info.ExpectedBtypes) 446 { 447 AcpiUtGetExpectedReturnTypes (Buffer, ThisName->Info.ExpectedBtypes); 448 printf (" Return value types: %s\n", Buffer); 449 } 450 else 451 { 452 printf (" No return value\n"); 453 } 454 } 455 456 457 /******************************************************************************* 458 * 459 * FUNCTION: AcpiUtGetArgumentTypes 460 * 461 * PARAMETERS: Buffer - Where to return the formatted types 462 * ArgumentTypes - Types field for this method 463 * 464 * RETURN: Count - the number of arguments required for this method 465 * 466 * DESCRIPTION: Format the required data types for this method (Integer, 467 * String, Buffer, or Package) and return the required argument 468 * count. 469 * 470 ******************************************************************************/ 471 472 static UINT32 473 AcpiUtGetArgumentTypes ( 474 char *Buffer, 475 UINT16 ArgumentTypes) 476 { 477 UINT16 ThisArgumentType; 478 UINT16 SubIndex; 479 UINT16 ArgCount; 480 UINT32 i; 481 482 483 *Buffer = 0; 484 SubIndex = 2; 485 486 /* First field in the types list is the count of args to follow */ 487 488 ArgCount = METHOD_GET_ARG_COUNT (ArgumentTypes); 489 if (ArgCount > METHOD_PREDEF_ARGS_MAX) 490 { 491 printf ("**** Invalid argument count (%u) " 492 "in predefined info structure\n", ArgCount); 493 return (ArgCount); 494 } 495 496 /* Get each argument from the list, convert to ascii, store to buffer */ 497 498 for (i = 0; i < ArgCount; i++) 499 { 500 ThisArgumentType = METHOD_GET_NEXT_TYPE (ArgumentTypes); 501 502 if (!ThisArgumentType || (ThisArgumentType > METHOD_MAX_ARG_TYPE)) 503 { 504 printf ("**** Invalid argument type (%u) " 505 "in predefined info structure\n", ThisArgumentType); 506 return (ArgCount); 507 } 508 509 strcat (Buffer, UtExternalTypeNames[ThisArgumentType] + SubIndex); 510 SubIndex = 0; 511 } 512 513 return (ArgCount); 514 } 515 516 517 /******************************************************************************* 518 * 519 * FUNCTION: AcpiUtGetResourceBitWidth 520 * 521 * PARAMETERS: Buffer - Where the formatted string is returned 522 * Types - Bitfield of expected data types 523 * 524 * RETURN: Count of return types. Formatted string in Buffer. 525 * 526 * DESCRIPTION: Format the resource bit widths into a printable string. 527 * 528 ******************************************************************************/ 529 530 UINT32 531 AcpiUtGetResourceBitWidth ( 532 char *Buffer, 533 UINT16 Types) 534 { 535 UINT32 i; 536 UINT16 SubIndex; 537 UINT32 Found; 538 539 540 *Buffer = 0; 541 SubIndex = 1; 542 Found = 0; 543 544 for (i = 0; i < NUM_RESOURCE_WIDTHS; i++) 545 { 546 if (Types & 1) 547 { 548 strcat (Buffer, &(UtResourceTypeNames[i][SubIndex])); 549 SubIndex = 0; 550 Found++; 551 } 552 553 Types >>= 1; 554 } 555 556 return (Found); 557 } 558 #endif 559