1 /******************************************************************************* 2 * 3 * Module Name: rsmisc - Miscellaneous resource descriptors 4 * $Revision: 1.48 $ 5 * 6 ******************************************************************************/ 7 8 /****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2008, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 #define __RSMISC_C__ 118 119 #include "acpi.h" 120 #include "acresrc.h" 121 122 #define _COMPONENT ACPI_RESOURCES 123 ACPI_MODULE_NAME ("rsmisc") 124 125 126 #define INIT_RESOURCE_TYPE(i) i->ResourceOffset 127 #define INIT_RESOURCE_LENGTH(i) i->AmlOffset 128 #define INIT_TABLE_LENGTH(i) i->Value 129 130 #define COMPARE_OPCODE(i) i->ResourceOffset 131 #define COMPARE_TARGET(i) i->AmlOffset 132 #define COMPARE_VALUE(i) i->Value 133 134 135 /******************************************************************************* 136 * 137 * FUNCTION: AcpiRsConvertAmlToResource 138 * 139 * PARAMETERS: Resource - Pointer to the resource descriptor 140 * Aml - Where the AML descriptor is returned 141 * Info - Pointer to appropriate conversion table 142 * 143 * RETURN: Status 144 * 145 * DESCRIPTION: Convert an external AML resource descriptor to the corresponding 146 * internal resource descriptor 147 * 148 ******************************************************************************/ 149 150 ACPI_STATUS 151 AcpiRsConvertAmlToResource ( 152 ACPI_RESOURCE *Resource, 153 AML_RESOURCE *Aml, 154 ACPI_RSCONVERT_INFO *Info) 155 { 156 ACPI_RS_LENGTH AmlResourceLength; 157 void *Source; 158 void *Destination; 159 char *Target; 160 UINT8 Count; 161 UINT8 FlagsMode = FALSE; 162 UINT16 ItemCount = 0; 163 UINT16 Temp16 = 0; 164 165 166 ACPI_FUNCTION_TRACE (RsConvertAmlToResource); 167 168 169 if (((ACPI_SIZE) Resource) & 0x3) 170 { 171 /* Each internal resource struct is expected to be 32-bit aligned */ 172 173 ACPI_WARNING ((AE_INFO, 174 "Misaligned resource pointer (get): %p Type %2.2X Len %X", 175 Resource, Resource->Type, Resource->Length)); 176 } 177 178 /* Extract the resource Length field (does not include header length) */ 179 180 AmlResourceLength = AcpiUtGetResourceLength (Aml); 181 182 /* 183 * First table entry must be ACPI_RSC_INITxxx and must contain the 184 * table length (# of table entries) 185 */ 186 Count = INIT_TABLE_LENGTH (Info); 187 188 while (Count) 189 { 190 /* 191 * Source is the external AML byte stream buffer, 192 * destination is the internal resource descriptor 193 */ 194 Source = ACPI_ADD_PTR (void, Aml, Info->AmlOffset); 195 Destination = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset); 196 197 switch (Info->Opcode) 198 { 199 case ACPI_RSC_INITGET: 200 /* 201 * Get the resource type and the initial (minimum) length 202 */ 203 ACPI_MEMSET (Resource, 0, INIT_RESOURCE_LENGTH (Info)); 204 Resource->Type = INIT_RESOURCE_TYPE (Info); 205 Resource->Length = INIT_RESOURCE_LENGTH (Info); 206 break; 207 208 209 case ACPI_RSC_INITSET: 210 break; 211 212 213 case ACPI_RSC_FLAGINIT: 214 215 FlagsMode = TRUE; 216 break; 217 218 219 case ACPI_RSC_1BITFLAG: 220 /* 221 * Mask and shift the flag bit 222 */ 223 ACPI_SET8 (Destination) = (UINT8) 224 ((ACPI_GET8 (Source) >> Info->Value) & 0x01); 225 break; 226 227 228 case ACPI_RSC_2BITFLAG: 229 /* 230 * Mask and shift the flag bits 231 */ 232 ACPI_SET8 (Destination) = (UINT8) 233 ((ACPI_GET8 (Source) >> Info->Value) & 0x03); 234 break; 235 236 237 case ACPI_RSC_COUNT: 238 239 ItemCount = ACPI_GET8 (Source); 240 ACPI_SET8 (Destination) = (UINT8) ItemCount; 241 242 Resource->Length = Resource->Length + 243 (Info->Value * (ItemCount - 1)); 244 break; 245 246 247 case ACPI_RSC_COUNT16: 248 249 ItemCount = AmlResourceLength; 250 ACPI_SET16 (Destination) = ItemCount; 251 252 Resource->Length = Resource->Length + 253 (Info->Value * (ItemCount - 1)); 254 break; 255 256 257 case ACPI_RSC_LENGTH: 258 259 Resource->Length = Resource->Length + Info->Value; 260 break; 261 262 263 case ACPI_RSC_MOVE8: 264 case ACPI_RSC_MOVE16: 265 case ACPI_RSC_MOVE32: 266 case ACPI_RSC_MOVE64: 267 /* 268 * Raw data move. Use the Info value field unless ItemCount has 269 * been previously initialized via a COUNT opcode 270 */ 271 if (Info->Value) 272 { 273 ItemCount = Info->Value; 274 } 275 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 276 break; 277 278 279 case ACPI_RSC_SET8: 280 281 ACPI_MEMSET (Destination, Info->AmlOffset, Info->Value); 282 break; 283 284 285 case ACPI_RSC_DATA8: 286 287 Target = ACPI_ADD_PTR (char, Resource, Info->Value); 288 ACPI_MEMCPY (Destination, Source, ACPI_GET16 (Target)); 289 break; 290 291 292 case ACPI_RSC_ADDRESS: 293 /* 294 * Common handler for address descriptor flags 295 */ 296 if (!AcpiRsGetAddressCommon (Resource, Aml)) 297 { 298 return_ACPI_STATUS (AE_AML_INVALID_RESOURCE_TYPE); 299 } 300 break; 301 302 303 case ACPI_RSC_SOURCE: 304 /* 305 * Optional ResourceSource (Index and String) 306 */ 307 Resource->Length += 308 AcpiRsGetResourceSource (AmlResourceLength, Info->Value, 309 Destination, Aml, NULL); 310 break; 311 312 313 case ACPI_RSC_SOURCEX: 314 /* 315 * Optional ResourceSource (Index and String). This is the more 316 * complicated case used by the Interrupt() macro 317 */ 318 Target = ACPI_ADD_PTR (char, Resource, Info->AmlOffset + (ItemCount * 4)); 319 320 Resource->Length += 321 AcpiRsGetResourceSource (AmlResourceLength, 322 (ACPI_RS_LENGTH) (((ItemCount - 1) * sizeof (UINT32)) + Info->Value), 323 Destination, Aml, Target); 324 break; 325 326 327 case ACPI_RSC_BITMASK: 328 /* 329 * 8-bit encoded bitmask (DMA macro) 330 */ 331 ItemCount = AcpiRsDecodeBitmask (ACPI_GET8 (Source), Destination); 332 if (ItemCount) 333 { 334 Resource->Length += (ItemCount - 1); 335 } 336 337 Target = ACPI_ADD_PTR (char, Resource, Info->Value); 338 ACPI_SET8 (Target) = (UINT8) ItemCount; 339 break; 340 341 342 case ACPI_RSC_BITMASK16: 343 /* 344 * 16-bit encoded bitmask (IRQ macro) 345 */ 346 ACPI_MOVE_16_TO_16 (&Temp16, Source); 347 348 ItemCount = AcpiRsDecodeBitmask (Temp16, Destination); 349 if (ItemCount) 350 { 351 Resource->Length += (ItemCount - 1); 352 } 353 354 Target = ACPI_ADD_PTR (char, Resource, Info->Value); 355 ACPI_SET8 (Target) = (UINT8) ItemCount; 356 break; 357 358 359 case ACPI_RSC_EXIT_NE: 360 /* 361 * Control - Exit conversion if not equal 362 */ 363 switch (Info->ResourceOffset) 364 { 365 case ACPI_RSC_COMPARE_AML_LENGTH: 366 if (AmlResourceLength != Info->Value) 367 { 368 goto Exit; 369 } 370 break; 371 372 case ACPI_RSC_COMPARE_VALUE: 373 if (ACPI_GET8 (Source) != Info->Value) 374 { 375 goto Exit; 376 } 377 break; 378 379 default: 380 381 ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode")); 382 return_ACPI_STATUS (AE_BAD_PARAMETER); 383 } 384 break; 385 386 387 default: 388 389 ACPI_ERROR ((AE_INFO, "Invalid conversion opcode")); 390 return_ACPI_STATUS (AE_BAD_PARAMETER); 391 } 392 393 Count--; 394 Info++; 395 } 396 397 Exit: 398 if (!FlagsMode) 399 { 400 /* Round the resource struct length up to the next boundary (32 or 64) */ 401 402 Resource->Length = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (Resource->Length); 403 } 404 return_ACPI_STATUS (AE_OK); 405 } 406 407 408 /******************************************************************************* 409 * 410 * FUNCTION: AcpiRsConvertResourceToAml 411 * 412 * PARAMETERS: Resource - Pointer to the resource descriptor 413 * Aml - Where the AML descriptor is returned 414 * Info - Pointer to appropriate conversion table 415 * 416 * RETURN: Status 417 * 418 * DESCRIPTION: Convert an internal resource descriptor to the corresponding 419 * external AML resource descriptor. 420 * 421 ******************************************************************************/ 422 423 ACPI_STATUS 424 AcpiRsConvertResourceToAml ( 425 ACPI_RESOURCE *Resource, 426 AML_RESOURCE *Aml, 427 ACPI_RSCONVERT_INFO *Info) 428 { 429 void *Source = NULL; 430 void *Destination; 431 ACPI_RSDESC_SIZE AmlLength = 0; 432 UINT8 Count; 433 UINT16 Temp16 = 0; 434 UINT16 ItemCount = 0; 435 436 437 ACPI_FUNCTION_TRACE (RsConvertResourceToAml); 438 439 440 /* 441 * First table entry must be ACPI_RSC_INITxxx and must contain the 442 * table length (# of table entries) 443 */ 444 Count = INIT_TABLE_LENGTH (Info); 445 446 while (Count) 447 { 448 /* 449 * Source is the internal resource descriptor, 450 * destination is the external AML byte stream buffer 451 */ 452 Source = ACPI_ADD_PTR (void, Resource, Info->ResourceOffset); 453 Destination = ACPI_ADD_PTR (void, Aml, Info->AmlOffset); 454 455 switch (Info->Opcode) 456 { 457 case ACPI_RSC_INITSET: 458 459 ACPI_MEMSET (Aml, 0, INIT_RESOURCE_LENGTH (Info)); 460 AmlLength = INIT_RESOURCE_LENGTH (Info); 461 AcpiRsSetResourceHeader (INIT_RESOURCE_TYPE (Info), AmlLength, Aml); 462 break; 463 464 465 case ACPI_RSC_INITGET: 466 break; 467 468 469 case ACPI_RSC_FLAGINIT: 470 /* 471 * Clear the flag byte 472 */ 473 ACPI_SET8 (Destination) = 0; 474 break; 475 476 477 case ACPI_RSC_1BITFLAG: 478 /* 479 * Mask and shift the flag bit 480 */ 481 ACPI_SET8 (Destination) |= (UINT8) 482 ((ACPI_GET8 (Source) & 0x01) << Info->Value); 483 break; 484 485 486 case ACPI_RSC_2BITFLAG: 487 /* 488 * Mask and shift the flag bits 489 */ 490 ACPI_SET8 (Destination) |= (UINT8) 491 ((ACPI_GET8 (Source) & 0x03) << Info->Value); 492 break; 493 494 495 case ACPI_RSC_COUNT: 496 497 ItemCount = ACPI_GET8 (Source); 498 ACPI_SET8 (Destination) = (UINT8) ItemCount; 499 500 AmlLength = (UINT16) (AmlLength + (Info->Value * (ItemCount - 1))); 501 break; 502 503 504 case ACPI_RSC_COUNT16: 505 506 ItemCount = ACPI_GET16 (Source); 507 AmlLength = (UINT16) (AmlLength + ItemCount); 508 AcpiRsSetResourceLength (AmlLength, Aml); 509 break; 510 511 512 case ACPI_RSC_LENGTH: 513 514 AcpiRsSetResourceLength (Info->Value, Aml); 515 break; 516 517 518 case ACPI_RSC_MOVE8: 519 case ACPI_RSC_MOVE16: 520 case ACPI_RSC_MOVE32: 521 case ACPI_RSC_MOVE64: 522 523 if (Info->Value) 524 { 525 ItemCount = Info->Value; 526 } 527 AcpiRsMoveData (Destination, Source, ItemCount, Info->Opcode); 528 break; 529 530 531 case ACPI_RSC_ADDRESS: 532 533 /* Set the Resource Type, General Flags, and Type-Specific Flags */ 534 535 AcpiRsSetAddressCommon (Aml, Resource); 536 break; 537 538 539 case ACPI_RSC_SOURCEX: 540 /* 541 * Optional ResourceSource (Index and String) 542 */ 543 AmlLength = AcpiRsSetResourceSource ( 544 Aml, (ACPI_RS_LENGTH) AmlLength, Source); 545 AcpiRsSetResourceLength (AmlLength, Aml); 546 break; 547 548 549 case ACPI_RSC_SOURCE: 550 /* 551 * Optional ResourceSource (Index and String). This is the more 552 * complicated case used by the Interrupt() macro 553 */ 554 AmlLength = AcpiRsSetResourceSource (Aml, Info->Value, Source); 555 AcpiRsSetResourceLength (AmlLength, Aml); 556 break; 557 558 559 case ACPI_RSC_BITMASK: 560 /* 561 * 8-bit encoded bitmask (DMA macro) 562 */ 563 ACPI_SET8 (Destination) = (UINT8) 564 AcpiRsEncodeBitmask (Source, 565 *ACPI_ADD_PTR (UINT8, Resource, Info->Value)); 566 break; 567 568 569 case ACPI_RSC_BITMASK16: 570 /* 571 * 16-bit encoded bitmask (IRQ macro) 572 */ 573 Temp16 = AcpiRsEncodeBitmask (Source, 574 *ACPI_ADD_PTR (UINT8, Resource, Info->Value)); 575 ACPI_MOVE_16_TO_16 (Destination, &Temp16); 576 break; 577 578 579 case ACPI_RSC_EXIT_LE: 580 /* 581 * Control - Exit conversion if less than or equal 582 */ 583 if (ItemCount <= Info->Value) 584 { 585 goto Exit; 586 } 587 break; 588 589 590 case ACPI_RSC_EXIT_NE: 591 /* 592 * Control - Exit conversion if not equal 593 */ 594 switch (COMPARE_OPCODE (Info)) 595 { 596 case ACPI_RSC_COMPARE_VALUE: 597 598 if (*ACPI_ADD_PTR (UINT8, Resource, 599 COMPARE_TARGET (Info)) != COMPARE_VALUE (Info)) 600 { 601 goto Exit; 602 } 603 break; 604 605 default: 606 607 ACPI_ERROR ((AE_INFO, "Invalid conversion sub-opcode")); 608 return_ACPI_STATUS (AE_BAD_PARAMETER); 609 } 610 break; 611 612 613 case ACPI_RSC_EXIT_EQ: 614 /* 615 * Control - Exit conversion if equal 616 */ 617 if (*ACPI_ADD_PTR (UINT8, Resource, 618 COMPARE_TARGET (Info)) == COMPARE_VALUE (Info)) 619 { 620 goto Exit; 621 } 622 break; 623 624 625 default: 626 627 ACPI_ERROR ((AE_INFO, "Invalid conversion opcode")); 628 return_ACPI_STATUS (AE_BAD_PARAMETER); 629 } 630 631 Count--; 632 Info++; 633 } 634 635 Exit: 636 return_ACPI_STATUS (AE_OK); 637 } 638 639 640 #if 0 641 /* Previous resource validations */ 642 643 if (Aml->ExtAddress64.RevisionID != AML_RESOURCE_EXTENDED_ADDRESS_REVISION) 644 { 645 return_ACPI_STATUS (AE_SUPPORT); 646 } 647 648 if (Resource->Data.StartDpf.PerformanceRobustness >= 3) 649 { 650 return_ACPI_STATUS (AE_AML_BAD_RESOURCE_VALUE); 651 } 652 653 if (((Aml->Irq.Flags & 0x09) == 0x00) || 654 ((Aml->Irq.Flags & 0x09) == 0x09)) 655 { 656 /* 657 * Only [ActiveHigh, EdgeSensitive] or [ActiveLow, LevelSensitive] 658 * polarity/trigger interrupts are allowed (ACPI spec, section 659 * "IRQ Format"), so 0x00 and 0x09 are illegal. 660 */ 661 ACPI_ERROR ((AE_INFO, 662 "Invalid interrupt polarity/trigger in resource list, %X", 663 Aml->Irq.Flags)); 664 return_ACPI_STATUS (AE_BAD_DATA); 665 } 666 667 Resource->Data.ExtendedIrq.InterruptCount = Temp8; 668 if (Temp8 < 1) 669 { 670 /* Must have at least one IRQ */ 671 672 return_ACPI_STATUS (AE_AML_BAD_RESOURCE_LENGTH); 673 } 674 675 if (Resource->Data.Dma.Transfer == 0x03) 676 { 677 ACPI_ERROR ((AE_INFO, 678 "Invalid DMA.Transfer preference (3)")); 679 return_ACPI_STATUS (AE_BAD_DATA); 680 } 681 #endif 682 683 684