1 /****************************************************************************** 2 * 3 * Module Name: aslmapoutput - Output/emit the resource descriptor/device maps 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2022, 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 <contrib/dev/acpica/include/acpi.h> 153 #include <contrib/dev/acpica/include/accommon.h> 154 #include <contrib/dev/acpica/include/acapps.h> 155 #include <contrib/dev/acpica/compiler/aslcompiler.h> 156 #include "aslcompiler.y.h" 157 #include <contrib/dev/acpica/include/acinterp.h> 158 #include <contrib/dev/acpica/include/acparser.h> 159 #include <contrib/dev/acpica/include/acnamesp.h> 160 #include <contrib/dev/acpica/include/amlcode.h> 161 162 /* This module used for application-level code only */ 163 164 #define _COMPONENT ACPI_COMPILER 165 ACPI_MODULE_NAME ("aslmapoutput") 166 167 /* Local prototypes */ 168 169 static void 170 MpEmitGpioInfo ( 171 void); 172 173 static void 174 MpEmitSerialInfo ( 175 void); 176 177 static void 178 MpEmitDeviceTree ( 179 void); 180 181 static ACPI_STATUS 182 MpEmitOneDevice ( 183 ACPI_HANDLE ObjHandle, 184 UINT32 NestingLevel, 185 void *Context, 186 void **ReturnValue); 187 188 static void 189 MpXrefDevices ( 190 ACPI_GPIO_INFO *Info); 191 192 static ACPI_STATUS 193 MpNamespaceXrefBegin ( 194 ACPI_PARSE_OBJECT *Op, 195 UINT32 Level, 196 void *Context); 197 198 199 /* Strings used to decode flag bits */ 200 201 const char *DirectionDecode[] = 202 { 203 "Both I/O ", 204 "InputOnly ", 205 "OutputOnly ", 206 "Preserve " 207 }; 208 209 const char *PolarityDecode[] = 210 { 211 "ActiveHigh", 212 "ActiveLow ", 213 "ActiveBoth", 214 "Reserved " 215 }; 216 217 218 /******************************************************************************* 219 * 220 * FUNCTION: MpEmitMappingInfo 221 * 222 * PARAMETERS: None 223 * 224 * RETURN: None 225 * 226 * DESCRIPTION: External interface. 227 * Map file has already been opened. Emit all of the collected 228 * hardware mapping information. Includes: GPIO information, 229 * Serial information, and a dump of the entire ACPI device tree. 230 * 231 ******************************************************************************/ 232 233 void 234 MpEmitMappingInfo ( 235 void) 236 { 237 238 /* Mapfile option enabled? */ 239 240 if (!AslGbl_MapfileFlag) 241 { 242 return; 243 } 244 245 if (!AslGbl_GpioList) 246 { 247 FlPrintFile (ASL_FILE_MAP_OUTPUT, 248 "\nNo GPIO devices found\n"); 249 } 250 251 if (!AslGbl_SerialList) 252 { 253 FlPrintFile (ASL_FILE_MAP_OUTPUT, 254 "\nNo Serial devices found (I2C/SPI/UART)\n"); 255 } 256 257 if (!AslGbl_GpioList && !AslGbl_SerialList) 258 { 259 return; 260 } 261 262 /* Headers */ 263 264 FlPrintFile (ASL_FILE_MAP_OUTPUT, "\nResource Descriptor Connectivity Map\n"); 265 FlPrintFile (ASL_FILE_MAP_OUTPUT, "------------------------------------\n"); 266 267 /* Emit GPIO and Serial descriptors, then entire ACPI device tree */ 268 269 MpEmitGpioInfo (); 270 MpEmitSerialInfo (); 271 MpEmitDeviceTree (); 272 273 /* Clear the lists - no need to free memory here */ 274 275 AslGbl_SerialList = NULL; 276 AslGbl_GpioList = NULL; 277 } 278 279 280 /******************************************************************************* 281 * 282 * FUNCTION: MpEmitGpioInfo 283 * 284 * PARAMETERS: None 285 * 286 * RETURN: None 287 * 288 * DESCRIPTION: Emit the info about all GPIO devices found during the 289 * compile or disassembly. 290 * 291 ******************************************************************************/ 292 293 static void 294 MpEmitGpioInfo ( 295 void) 296 { 297 ACPI_GPIO_INFO *Info; 298 char *Type; 299 char *PrevDeviceName = NULL; 300 const char *Direction; 301 const char *Polarity; 302 char *ParentPathname; 303 const char *Description; 304 char *HidString; 305 const AH_DEVICE_ID *HidInfo; 306 307 308 /* Walk the GPIO descriptor list */ 309 310 Info = AslGbl_GpioList; 311 while (Info) 312 { 313 HidString = MpGetHidViaNamestring (Info->DeviceName); 314 315 /* Print header info for the controller itself */ 316 317 if (!PrevDeviceName || 318 strcmp (PrevDeviceName, Info->DeviceName)) 319 { 320 FlPrintFile (ASL_FILE_MAP_OUTPUT, 321 "\n\nGPIO Controller: %-8s %-28s", 322 HidString, Info->DeviceName); 323 324 HidInfo = AcpiAhMatchHardwareId (HidString); 325 if (HidInfo) 326 { 327 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s", 328 HidInfo->Description); 329 } 330 331 FlPrintFile (ASL_FILE_MAP_OUTPUT, 332 "\n\nPin Type Direction Polarity" 333 " Dest _HID Destination\n"); 334 } 335 336 PrevDeviceName = Info->DeviceName; 337 338 /* Setup various strings based upon the type (GpioInt or GpioIo) */ 339 340 switch (Info->Type) 341 { 342 case AML_RESOURCE_GPIO_TYPE_INT: 343 344 Type = "GpioInt"; 345 Direction = "-Interrupt-"; 346 Polarity = PolarityDecode[Info->Polarity]; 347 break; 348 349 case AML_RESOURCE_GPIO_TYPE_IO: 350 351 Type = "GpioIo "; 352 Direction = DirectionDecode[Info->Direction]; 353 Polarity = " "; 354 break; 355 356 default: 357 continue; 358 } 359 360 /* Emit the GPIO info */ 361 362 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%4.4X %s %s %s ", 363 Info->PinNumber, Type, Direction, Polarity); 364 365 ParentPathname = NULL; 366 HidString = MpGetConnectionInfo (Info->Op, Info->PinIndex, 367 &Info->TargetNode, &ParentPathname); 368 if (HidString) 369 { 370 /* 371 * This is a Connection() field 372 * Attempt to find all references to the field. 373 */ 374 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%8s %-28s", 375 HidString, ParentPathname); 376 377 MpXrefDevices (Info); 378 } 379 else 380 { 381 /* 382 * For Devices, attempt to get the _HID description string. 383 * Failing that (many _HIDs are not recognized), attempt to 384 * get the _DDN description string. 385 */ 386 HidString = MpGetParentDeviceHid (Info->Op, &Info->TargetNode, 387 &ParentPathname); 388 389 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%8s %-28s", 390 HidString, ParentPathname); 391 392 /* Get the _HID description or _DDN string */ 393 394 HidInfo = AcpiAhMatchHardwareId (HidString); 395 if (HidInfo) 396 { 397 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s", 398 HidInfo->Description); 399 } 400 else if ((Description = MpGetDdnValue (ParentPathname))) 401 { 402 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s (_DDN)", 403 Description); 404 } 405 } 406 407 FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n"); 408 ACPI_FREE (ParentPathname); 409 Info = Info->Next; 410 } 411 } 412 413 414 /******************************************************************************* 415 * 416 * FUNCTION: MpEmitSerialInfo 417 * 418 * PARAMETERS: None 419 * 420 * RETURN: None 421 * 422 * DESCRIPTION: Emit the info about all Serial devices found during the 423 * compile or disassembly. 424 * 425 ******************************************************************************/ 426 427 static void 428 MpEmitSerialInfo ( 429 void) 430 { 431 ACPI_SERIAL_INFO *Info; 432 char *Type; 433 char *ParentPathname; 434 char *PrevDeviceName = NULL; 435 char *HidString; 436 const AH_DEVICE_ID *HidInfo; 437 const char *Description; 438 AML_RESOURCE *Resource; 439 440 441 /* Walk the constructed serial descriptor list */ 442 443 Info = AslGbl_SerialList; 444 while (Info) 445 { 446 Resource = Info->Resource; 447 switch (Resource->CommonSerialBus.Type) 448 { 449 case AML_RESOURCE_I2C_SERIALBUSTYPE: 450 Type = "I2C "; 451 break; 452 453 case AML_RESOURCE_SPI_SERIALBUSTYPE: 454 Type = "SPI "; 455 break; 456 457 case AML_RESOURCE_UART_SERIALBUSTYPE: 458 Type = "UART"; 459 break; 460 461 default: 462 Type = "UNKN"; 463 break; 464 } 465 466 HidString = MpGetHidViaNamestring (Info->DeviceName); 467 468 /* Print header info for the controller itself */ 469 470 if (!PrevDeviceName || 471 strcmp (PrevDeviceName, Info->DeviceName)) 472 { 473 FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n\n%s Controller: ", 474 Type); 475 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%-8s %-28s", 476 HidString, Info->DeviceName); 477 478 HidInfo = AcpiAhMatchHardwareId (HidString); 479 if (HidInfo) 480 { 481 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s", 482 HidInfo->Description); 483 } 484 485 FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n\n"); 486 FlPrintFile (ASL_FILE_MAP_OUTPUT, 487 "Type Address Speed Dest _HID Destination\n"); 488 } 489 490 PrevDeviceName = Info->DeviceName; 491 492 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%s %4.4X %8.8X ", 493 Type, Info->Address, Info->Speed); 494 495 ParentPathname = NULL; 496 HidString = MpGetConnectionInfo (Info->Op, 0, &Info->TargetNode, 497 &ParentPathname); 498 if (HidString) 499 { 500 /* 501 * This is a Connection() field 502 * Attempt to find all references to the field. 503 */ 504 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%8s %-28s", 505 HidString, ParentPathname); 506 } 507 else 508 { 509 /* Normal resource template */ 510 511 HidString = MpGetParentDeviceHid (Info->Op, &Info->TargetNode, 512 &ParentPathname); 513 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%8s %-28s", 514 HidString, ParentPathname); 515 516 /* Get the _HID description or _DDN string */ 517 518 HidInfo = AcpiAhMatchHardwareId (HidString); 519 if (HidInfo) 520 { 521 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s", 522 HidInfo->Description); 523 } 524 else if ((Description = MpGetDdnValue (ParentPathname))) 525 { 526 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s (_DDN)", 527 Description); 528 } 529 } 530 531 FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n"); 532 ACPI_FREE (ParentPathname); 533 Info = Info->Next; 534 } 535 } 536 537 538 /******************************************************************************* 539 * 540 * FUNCTION: MpEmitDeviceTree 541 * 542 * PARAMETERS: None 543 * 544 * RETURN: None 545 * 546 * DESCRIPTION: Emit information about all devices within the ACPI namespace. 547 * 548 ******************************************************************************/ 549 550 static void 551 MpEmitDeviceTree ( 552 void) 553 { 554 555 FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n\nACPI Device Tree\n"); 556 FlPrintFile (ASL_FILE_MAP_OUTPUT, "----------------\n\n"); 557 558 FlPrintFile (ASL_FILE_MAP_OUTPUT, "Device Pathname " 559 "_HID Description\n\n"); 560 561 /* Walk the namespace from the root */ 562 563 (void) AcpiNsWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 564 ACPI_UINT32_MAX, FALSE, MpEmitOneDevice, NULL, NULL, NULL); 565 } 566 567 568 /******************************************************************************* 569 * 570 * FUNCTION: MpEmitOneDevice 571 * 572 * PARAMETERS: ACPI_NAMESPACE_WALK callback 573 * 574 * RETURN: Status 575 * 576 * DESCRIPTION: Emit information about one ACPI device in the namespace. Used 577 * during dump of all device objects within the namespace. 578 * 579 ******************************************************************************/ 580 581 static ACPI_STATUS 582 MpEmitOneDevice ( 583 ACPI_HANDLE ObjHandle, 584 UINT32 NestingLevel, 585 void *Context, 586 void **ReturnValue) 587 { 588 char *DevicePathname; 589 char *DdnString; 590 char *HidString; 591 const AH_DEVICE_ID *HidInfo; 592 593 594 /* Device pathname */ 595 596 DevicePathname = AcpiNsGetExternalPathname ( 597 ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle)); 598 599 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%-32s", DevicePathname); 600 601 /* _HID or _DDN */ 602 603 HidString = MpGetHidValue ( 604 ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle)); 605 FlPrintFile (ASL_FILE_MAP_OUTPUT, "%8s", HidString); 606 607 HidInfo = AcpiAhMatchHardwareId (HidString); 608 if (HidInfo) 609 { 610 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s", 611 HidInfo->Description); 612 } 613 else if ((DdnString = MpGetDdnValue (DevicePathname))) 614 { 615 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // %s (_DDN)", DdnString); 616 } 617 618 FlPrintFile (ASL_FILE_MAP_OUTPUT, "\n"); 619 ACPI_FREE (DevicePathname); 620 return (AE_OK); 621 } 622 623 624 /******************************************************************************* 625 * 626 * FUNCTION: MpXrefDevices 627 * 628 * PARAMETERS: Info - A GPIO Info block 629 * 630 * RETURN: None 631 * 632 * DESCRIPTION: Cross-reference the parse tree and find all references to the 633 * specified GPIO device. 634 * 635 ******************************************************************************/ 636 637 static void 638 MpXrefDevices ( 639 ACPI_GPIO_INFO *Info) 640 { 641 642 /* Walk the entire parse tree */ 643 644 TrWalkParseTree (AslGbl_ParseTreeRoot, ASL_WALK_VISIT_DOWNWARD, 645 MpNamespaceXrefBegin, NULL, Info); 646 647 if (!Info->References) 648 { 649 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // **** No references in table"); 650 } 651 } 652 653 654 /******************************************************************************* 655 * 656 * FUNCTION: MpNamespaceXrefBegin 657 * 658 * PARAMETERS: WALK_PARSE_TREE callback 659 * 660 * RETURN: Status 661 * 662 * DESCRIPTION: Walk parse tree callback used to cross-reference GPIO pins. 663 * 664 ******************************************************************************/ 665 666 static ACPI_STATUS 667 MpNamespaceXrefBegin ( 668 ACPI_PARSE_OBJECT *Op, 669 UINT32 Level, 670 void *Context) 671 { 672 ACPI_GPIO_INFO *Info = ACPI_CAST_PTR (ACPI_GPIO_INFO, Context); 673 const ACPI_OPCODE_INFO *OpInfo; 674 char *DevicePathname; 675 ACPI_PARSE_OBJECT *ParentOp; 676 char *HidString; 677 678 679 ACPI_FUNCTION_TRACE_PTR (MpNamespaceXrefBegin, Op); 680 681 /* 682 * If this node is the actual declaration of a name 683 * [such as the XXXX name in "Method (XXXX)"], 684 * we are not interested in it here. We only care about names that 685 * are references to other objects within the namespace and the 686 * parent objects of name declarations 687 */ 688 if (Op->Asl.CompileFlags & OP_IS_NAME_DECLARATION) 689 { 690 return (AE_OK); 691 } 692 693 /* We are only interested in opcodes that have an associated name */ 694 695 OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode); 696 697 if ((OpInfo->Flags & AML_NAMED) || 698 (OpInfo->Flags & AML_CREATE)) 699 { 700 return (AE_OK); 701 } 702 703 if ((Op->Asl.ParseOpcode != PARSEOP_NAMESTRING) && 704 (Op->Asl.ParseOpcode != PARSEOP_NAMESEG) && 705 (Op->Asl.ParseOpcode != PARSEOP_METHODCALL)) 706 { 707 return (AE_OK); 708 } 709 710 if (!Op->Asl.Node) 711 { 712 return (AE_OK); 713 } 714 715 ParentOp = Op->Asl.Parent; 716 if (ParentOp->Asl.ParseOpcode == PARSEOP_FIELD) 717 { 718 return (AE_OK); 719 } 720 721 if (Op->Asl.Node == Info->TargetNode) 722 { 723 while (ParentOp && (!ParentOp->Asl.Node)) 724 { 725 ParentOp = ParentOp->Asl.Parent; 726 } 727 728 if (ParentOp) 729 { 730 DevicePathname = AcpiNsGetExternalPathname ( 731 ParentOp->Asl.Node); 732 733 if (!Info->References) 734 { 735 FlPrintFile (ASL_FILE_MAP_OUTPUT, " // References:"); 736 } 737 738 HidString = MpGetHidViaNamestring (DevicePathname); 739 740 FlPrintFile (ASL_FILE_MAP_OUTPUT, " %s [%s]", 741 DevicePathname, HidString); 742 743 Info->References++; 744 745 ACPI_FREE (DevicePathname); 746 } 747 } 748 749 return (AE_OK); 750 } 751