1 /****************************************************************************** 2 * 3 * Module Name: dmrestag - Add tags to resource descriptors (Application-level) 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2023, 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/acparser.h> 155 #include <contrib/dev/acpica/include/acdisasm.h> 156 #include <contrib/dev/acpica/include/acnamesp.h> 157 #include <contrib/dev/acpica/include/amlcode.h> 158 159 /* This module used for application-level code only */ 160 161 #define _COMPONENT ACPI_CA_DISASSEMBLER 162 ACPI_MODULE_NAME ("dmrestag") 163 164 /* Local prototypes */ 165 166 static void 167 AcpiDmUpdateResourceName ( 168 ACPI_NAMESPACE_NODE *ResourceNode); 169 170 static char * 171 AcpiDmSearchTagList ( 172 UINT32 BitIndex, 173 const ACPI_RESOURCE_TAG *TagList); 174 175 static char * 176 AcpiDmGetResourceTag ( 177 UINT32 BitIndex, 178 AML_RESOURCE *Resource, 179 UINT8 ResourceIndex); 180 181 static char * 182 AcpiGetTagPathname ( 183 ACPI_PARSE_OBJECT *Op, 184 ACPI_NAMESPACE_NODE *BufferNode, 185 ACPI_NAMESPACE_NODE *ResourceNode, 186 UINT32 BitIndex); 187 188 static ACPI_NAMESPACE_NODE * 189 AcpiDmGetResourceNode ( 190 ACPI_NAMESPACE_NODE *BufferNode, 191 UINT32 BitIndex); 192 193 static ACPI_STATUS 194 AcpiDmAddResourceToNamespace ( 195 UINT8 *Aml, 196 UINT32 Length, 197 UINT32 Offset, 198 UINT8 ResourceIndex, 199 void **Context); 200 201 static void 202 AcpiDmAddResourcesToNamespace ( 203 ACPI_NAMESPACE_NODE *BufferNode, 204 ACPI_PARSE_OBJECT *Op); 205 206 207 /****************************************************************************** 208 * 209 * Resource Tag tables 210 * 211 * These are the predefined tags that refer to elements of a resource 212 * descriptor. Each name and offset is defined in the ACPI specification. 213 * 214 * Each table entry contains the bit offset of the field and the associated 215 * name. 216 * 217 ******************************************************************************/ 218 219 static const ACPI_RESOURCE_TAG AcpiDmIrqTags[] = 220 { 221 {( 1 * 8), ACPI_RESTAG_INTERRUPT}, 222 {( 3 * 8) + 0, ACPI_RESTAG_INTERRUPTTYPE}, 223 {( 3 * 8) + 3, ACPI_RESTAG_INTERRUPTLEVEL}, 224 {( 3 * 8) + 4, ACPI_RESTAG_INTERRUPTSHARE}, 225 {0, NULL} 226 }; 227 228 static const ACPI_RESOURCE_TAG AcpiDmDmaTags[] = 229 { 230 {( 1 * 8), ACPI_RESTAG_DMA}, 231 {( 2 * 8) + 0, ACPI_RESTAG_XFERTYPE}, 232 {( 2 * 8) + 2, ACPI_RESTAG_BUSMASTER}, 233 {( 2 * 8) + 5, ACPI_RESTAG_DMATYPE}, 234 {0, NULL} 235 }; 236 237 static const ACPI_RESOURCE_TAG AcpiDmIoTags[] = 238 { 239 {( 1 * 8) + 0, ACPI_RESTAG_DECODE}, 240 {( 2 * 8), ACPI_RESTAG_MINADDR}, 241 {( 4 * 8), ACPI_RESTAG_MAXADDR}, 242 {( 6 * 8), ACPI_RESTAG_ALIGNMENT}, 243 {( 7 * 8), ACPI_RESTAG_LENGTH}, 244 {0, NULL} 245 }; 246 247 static const ACPI_RESOURCE_TAG AcpiDmFixedIoTags[] = 248 { 249 {( 1 * 8), ACPI_RESTAG_BASEADDRESS}, 250 {( 3 * 8), ACPI_RESTAG_LENGTH}, 251 {0, NULL} 252 }; 253 254 static const ACPI_RESOURCE_TAG AcpiDmFixedDmaTags[] = 255 { 256 {( 1 * 8), ACPI_RESTAG_DMA}, 257 {( 3 * 8), ACPI_RESTAG_DMATYPE}, 258 {( 5 * 8), ACPI_RESTAG_XFERTYPE}, 259 {0, NULL} 260 }; 261 262 static const ACPI_RESOURCE_TAG AcpiDmMemory24Tags[] = 263 { 264 {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, 265 {( 4 * 8), ACPI_RESTAG_MINADDR}, 266 {( 6 * 8), ACPI_RESTAG_MAXADDR}, 267 {( 8 * 8), ACPI_RESTAG_ALIGNMENT}, 268 {(10 * 8), ACPI_RESTAG_LENGTH}, 269 {0, NULL} 270 }; 271 272 static const ACPI_RESOURCE_TAG AcpiDmRegisterTags[] = 273 { 274 {( 3 * 8), ACPI_RESTAG_ADDRESSSPACE}, 275 {( 4 * 8), ACPI_RESTAG_REGISTERBITWIDTH}, 276 {( 5 * 8), ACPI_RESTAG_REGISTERBITOFFSET}, 277 {( 6 * 8), ACPI_RESTAG_ACCESSSIZE}, 278 {( 7 * 8), ACPI_RESTAG_ADDRESS}, 279 {0, NULL} 280 }; 281 282 static const ACPI_RESOURCE_TAG AcpiDmMemory32Tags[] = 283 { 284 {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, 285 {( 4 * 8), ACPI_RESTAG_MINADDR}, 286 {( 8 * 8), ACPI_RESTAG_MAXADDR}, 287 {(12 * 8), ACPI_RESTAG_ALIGNMENT}, 288 {(16 * 8), ACPI_RESTAG_LENGTH}, 289 {0, NULL} 290 }; 291 292 static const ACPI_RESOURCE_TAG AcpiDmFixedMemory32Tags[] = 293 { 294 {( 3 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, 295 {( 4 * 8), ACPI_RESTAG_BASEADDRESS}, 296 {( 8 * 8), ACPI_RESTAG_LENGTH}, 297 {0, NULL} 298 }; 299 300 static const ACPI_RESOURCE_TAG AcpiDmInterruptTags[] = 301 { 302 {( 3 * 8) + 1, ACPI_RESTAG_INTERRUPTTYPE}, 303 {( 3 * 8) + 2, ACPI_RESTAG_INTERRUPTLEVEL}, 304 {( 3 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE}, 305 {( 5 * 8), ACPI_RESTAG_INTERRUPT}, 306 {0, NULL} 307 }; 308 309 static const ACPI_RESOURCE_TAG AcpiDmAddress16Tags[] = 310 { 311 {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, 312 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, 313 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, 314 {( 6 * 8), ACPI_RESTAG_GRANULARITY}, 315 {( 8 * 8), ACPI_RESTAG_MINADDR}, 316 {(10 * 8), ACPI_RESTAG_MAXADDR}, 317 {(12 * 8), ACPI_RESTAG_TRANSLATION}, 318 {(14 * 8), ACPI_RESTAG_LENGTH}, 319 {0, NULL} 320 }; 321 322 static const ACPI_RESOURCE_TAG AcpiDmAddress32Tags[] = 323 { 324 {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, 325 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, 326 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, 327 {( 6 * 8), ACPI_RESTAG_GRANULARITY}, 328 {(10 * 8), ACPI_RESTAG_MINADDR}, 329 {(14 * 8), ACPI_RESTAG_MAXADDR}, 330 {(18 * 8), ACPI_RESTAG_TRANSLATION}, 331 {(22 * 8), ACPI_RESTAG_LENGTH}, 332 {0, NULL} 333 }; 334 335 static const ACPI_RESOURCE_TAG AcpiDmAddress64Tags[] = 336 { 337 {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, 338 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, 339 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, 340 {( 6 * 8), ACPI_RESTAG_GRANULARITY}, 341 {(14 * 8), ACPI_RESTAG_MINADDR}, 342 {(22 * 8), ACPI_RESTAG_MAXADDR}, 343 {(30 * 8), ACPI_RESTAG_TRANSLATION}, 344 {(38 * 8), ACPI_RESTAG_LENGTH}, 345 {0, NULL} 346 }; 347 348 static const ACPI_RESOURCE_TAG AcpiDmExtendedAddressTags[] = 349 { 350 {( 4 * 8) + 1, ACPI_RESTAG_DECODE}, 351 {( 4 * 8) + 2, ACPI_RESTAG_MINTYPE}, 352 {( 4 * 8) + 3, ACPI_RESTAG_MAXTYPE}, 353 {( 8 * 8), ACPI_RESTAG_GRANULARITY}, 354 {(16 * 8), ACPI_RESTAG_MINADDR}, 355 {(24 * 8), ACPI_RESTAG_MAXADDR}, 356 {(32 * 8), ACPI_RESTAG_TRANSLATION}, 357 {(40 * 8), ACPI_RESTAG_LENGTH}, 358 {(48 * 8), ACPI_RESTAG_TYPESPECIFICATTRIBUTES}, 359 {0, NULL} 360 }; 361 362 /* Subtype tables for GPIO descriptors */ 363 364 static const ACPI_RESOURCE_TAG AcpiDmGpioIntTags[] = 365 { 366 {( 7 * 8) + 0, ACPI_RESTAG_MODE}, 367 {( 7 * 8) + 1, ACPI_RESTAG_POLARITY}, 368 {( 7 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE}, 369 {( 9 * 8), ACPI_RESTAG_PINCONFIG}, 370 {(10 * 8), ACPI_RESTAG_DRIVESTRENGTH}, 371 {(12 * 8), ACPI_RESTAG_DEBOUNCETIME}, 372 {0, NULL} 373 }; 374 375 static const ACPI_RESOURCE_TAG AcpiDmGpioIoTags[] = 376 { 377 {( 7 * 8) + 0, ACPI_RESTAG_IORESTRICTION}, 378 {( 7 * 8) + 3, ACPI_RESTAG_INTERRUPTSHARE}, 379 {( 9 * 8), ACPI_RESTAG_PINCONFIG}, 380 {(10 * 8), ACPI_RESTAG_DRIVESTRENGTH}, 381 {(12 * 8), ACPI_RESTAG_DEBOUNCETIME}, 382 {0, NULL} 383 }; 384 385 /* Subtype tables for SerialBus descriptors */ 386 387 static const ACPI_RESOURCE_TAG AcpiDmCsi2SerialBusTags[] = /* ACPI 6.4 */ 388 { 389 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, 390 {( 7 * 8) + 0, ACPI_RESTAG_PHYTYPE}, 391 {( 7 * 8) + 2, ACPI_RESTAG_LOCALPORT}, 392 {0, NULL} 393 }; 394 395 static const ACPI_RESOURCE_TAG AcpiDmI2cSerialBusTags[] = 396 { 397 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, 398 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */ 399 {( 7 * 8) + 0, ACPI_RESTAG_MODE}, 400 {(12 * 8), ACPI_RESTAG_SPEED}, 401 {(16 * 8), ACPI_RESTAG_ADDRESS}, 402 {0, NULL} 403 }; 404 405 static const ACPI_RESOURCE_TAG AcpiDmSpiSerialBusTags[] = 406 { 407 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, 408 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */ 409 {( 7 * 8) + 0, ACPI_RESTAG_MODE}, 410 {( 7 * 8) + 1, ACPI_RESTAG_DEVICEPOLARITY}, 411 {(12 * 8), ACPI_RESTAG_SPEED}, 412 {(16 * 8), ACPI_RESTAG_LENGTH}, 413 {(17 * 8), ACPI_RESTAG_PHASE}, 414 {(18 * 8), ACPI_RESTAG_POLARITY}, 415 {(19 * 8), ACPI_RESTAG_ADDRESS}, 416 {0, NULL} 417 }; 418 419 static const ACPI_RESOURCE_TAG AcpiDmUartSerialBusTags[] = 420 { 421 {( 6 * 8) + 0, ACPI_RESTAG_SLAVEMODE}, /* Note: not part of original macro */ 422 {( 6 * 8) + 2, ACPI_RESTAG_INTERRUPTSHARE}, /* V2 - ACPI 6.0 */ 423 {( 7 * 8) + 0, ACPI_RESTAG_FLOWCONTROL}, 424 {( 7 * 8) + 2, ACPI_RESTAG_STOPBITS}, 425 {( 7 * 8) + 4, ACPI_RESTAG_LENGTH}, 426 {( 7 * 8) + 7, ACPI_RESTAG_ENDIANNESS}, 427 {(12 * 8), ACPI_RESTAG_SPEED}, 428 {(16 * 8), ACPI_RESTAG_LENGTH_RX}, 429 {(18 * 8), ACPI_RESTAG_LENGTH_TX}, 430 {(20 * 8), ACPI_RESTAG_PARITY}, 431 {(21 * 8), ACPI_RESTAG_LINE}, 432 {0, NULL} 433 }; 434 435 436 /* Subtype tables for PinFunction descriptor */ 437 438 static const ACPI_RESOURCE_TAG AcpiDmPinFunctionTags[] = 439 { 440 {( 4 * 8), ACPI_RESTAG_INTERRUPTSHARE}, 441 {( 6 * 8), ACPI_RESTAG_PINCONFIG}, 442 {( 7 * 8), ACPI_RESTAG_FUNCTION}, 443 {0, NULL} 444 }; 445 446 /* Subtype tables for PinConfig descriptor */ 447 448 static const ACPI_RESOURCE_TAG AcpiDmPinConfigTags[] = 449 { 450 {( 4 * 8), ACPI_RESTAG_INTERRUPTSHARE}, 451 {( 6 * 8), ACPI_RESTAG_PINCONFIG_TYPE}, 452 {( 7 * 8), ACPI_RESTAG_PINCONFIG_VALUE}, 453 {0, NULL} 454 }; 455 456 /* Subtype tables for PinGroupFunction descriptor */ 457 458 static const ACPI_RESOURCE_TAG AcpiDmPinGroupFunctionTags[] = 459 { 460 {( 6 * 8), ACPI_RESTAG_FUNCTION}, 461 {0, NULL} 462 }; 463 464 /* Subtype tables for Address descriptor type-specific flags */ 465 466 static const ACPI_RESOURCE_TAG AcpiDmMemoryFlagTags[] = 467 { 468 {( 5 * 8) + 0, ACPI_RESTAG_READWRITETYPE}, 469 {( 5 * 8) + 1, ACPI_RESTAG_MEMTYPE}, 470 {( 5 * 8) + 3, ACPI_RESTAG_MEMATTRIBUTES}, 471 {( 5 * 8) + 5, ACPI_RESTAG_TYPE}, 472 {0, NULL} 473 }; 474 475 static const ACPI_RESOURCE_TAG AcpiDmIoFlagTags[] = 476 { 477 {( 5 * 8) + 0, ACPI_RESTAG_RANGETYPE}, 478 {( 5 * 8) + 4, ACPI_RESTAG_TYPE}, 479 {( 5 * 8) + 5, ACPI_RESTAG_TRANSTYPE}, 480 {0, NULL} 481 }; 482 483 /* Subtype tables for ClockInput descriptor */ 484 485 static const ACPI_RESOURCE_TAG AcpiDmClockInputTags[] = 486 { 487 {( 6 * 8), ACPI_RESTAG_FQD}, 488 {( 8 * 8), ACPI_RESTAG_FQN}, 489 {0, NULL} 490 }; 491 492 /* 493 * Dispatch table used to obtain the correct tag table for a descriptor. 494 * 495 * A NULL in this table means one of three things: 496 * 1) The descriptor ID is reserved and invalid 497 * 2) The descriptor has no tags associated with it 498 * 3) The descriptor has subtypes and a separate table will be used. 499 */ 500 static const ACPI_RESOURCE_TAG *AcpiGbl_ResourceTags[] = 501 { 502 /* Small descriptors */ 503 504 NULL, /* 0x00, Reserved */ 505 NULL, /* 0x01, Reserved */ 506 NULL, /* 0x02, Reserved */ 507 NULL, /* 0x03, Reserved */ 508 AcpiDmIrqTags, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */ 509 AcpiDmDmaTags, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */ 510 NULL, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */ 511 NULL, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */ 512 AcpiDmIoTags, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */ 513 AcpiDmFixedIoTags, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */ 514 AcpiDmFixedDmaTags, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */ 515 NULL, /* 0x0B, Reserved */ 516 NULL, /* 0x0C, Reserved */ 517 NULL, /* 0x0D, Reserved */ 518 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */ 519 NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */ 520 521 /* Large descriptors */ 522 523 NULL, /* 0x00, Reserved */ 524 AcpiDmMemory24Tags, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */ 525 AcpiDmRegisterTags, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */ 526 NULL, /* 0x03, Reserved */ 527 NULL, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */ 528 AcpiDmMemory32Tags, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */ 529 AcpiDmFixedMemory32Tags, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */ 530 AcpiDmAddress32Tags, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */ 531 AcpiDmAddress16Tags, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */ 532 AcpiDmInterruptTags, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */ 533 AcpiDmAddress64Tags, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */ 534 AcpiDmExtendedAddressTags, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */ 535 NULL, /* 0x0C, ACPI_RESOURCE_NAME_GPIO - Use Subtype table below */ 536 AcpiDmPinFunctionTags, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */ 537 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use Subtype table below */ 538 AcpiDmPinConfigTags, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */ 539 NULL, /* 0x10, ACPI_RESOURCE_NAME_PIN_GROUP */ 540 AcpiDmPinGroupFunctionTags, /* 0x11, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION */ 541 AcpiDmPinConfigTags, /* 0x12, ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG - Same as PinConfig */ 542 AcpiDmClockInputTags, /* 0x13, ACPI_RESOURCE_NAME_CLOCK_INPUT */ 543 }; 544 545 /* GPIO Subtypes */ 546 547 static const ACPI_RESOURCE_TAG *AcpiGbl_GpioResourceTags[] = 548 { 549 AcpiDmGpioIntTags, /* 0x00 Interrupt Connection */ 550 AcpiDmGpioIoTags /* 0x01 I/O Connection */ 551 }; 552 553 /* Serial Bus Subtypes */ 554 555 static const ACPI_RESOURCE_TAG *AcpiGbl_SerialResourceTags[] = 556 { 557 NULL, /* 0x00 Reserved */ 558 AcpiDmI2cSerialBusTags, /* 0x01 I2C SerialBus */ 559 AcpiDmSpiSerialBusTags, /* 0x02 SPI SerialBus */ 560 AcpiDmUartSerialBusTags, /* 0x03 UART SerialBus */ 561 AcpiDmCsi2SerialBusTags /* 0x04 CSI2 SerialBus */ 562 }; 563 564 /* 565 * Globals used to generate unique resource descriptor names. We use names that 566 * start with underscore and a prefix letter that is not used by other ACPI 567 * reserved names. To this, we append hex 0x00 through 0xFF. These 5 prefixes 568 * allow for 5*256 = 1280 unique names, probably sufficient for any single ASL 569 * file. If this becomes too small, we can use alpha+numerals for a total 570 * of 5*36*36 = 6480. 571 */ 572 #define ACPI_NUM_RES_PREFIX 5 573 574 static UINT32 AcpiGbl_NextResourceId = 0; 575 static UINT8 AcpiGbl_NextPrefix = 0; 576 static char AcpiGbl_Prefix[ACPI_NUM_RES_PREFIX] = 577 {'Y','Z','J','K','X'}; 578 579 580 /******************************************************************************* 581 * 582 * FUNCTION: AcpiDmCheckResourceReference 583 * 584 * PARAMETERS: Op - Parse Op for the AML opcode 585 * WalkState - Current walk state (with valid scope) 586 * 587 * RETURN: None 588 * 589 * DESCRIPTION: Convert a reference to a resource descriptor to a symbolic 590 * reference if possible 591 * 592 * NOTE: Bit index is used to transparently handle both resource bit 593 * fields and byte fields. 594 * 595 ******************************************************************************/ 596 597 void 598 AcpiDmCheckResourceReference ( 599 ACPI_PARSE_OBJECT *Op, 600 ACPI_WALK_STATE *WalkState) 601 { 602 ACPI_STATUS Status; 603 ACPI_PARSE_OBJECT *BufferNameOp; 604 ACPI_PARSE_OBJECT *IndexOp; 605 ACPI_NAMESPACE_NODE *BufferNode; 606 ACPI_NAMESPACE_NODE *ResourceNode; 607 const ACPI_OPCODE_INFO *OpInfo; 608 UINT32 BitIndex; 609 610 611 /* We are only interested in the CreateXxxxField opcodes */ 612 613 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 614 if (OpInfo->Type != AML_TYPE_CREATE_FIELD) 615 { 616 return; 617 } 618 619 /* Get the buffer term operand */ 620 621 BufferNameOp = AcpiPsGetDepthNext (NULL, Op); 622 623 /* Must be a named buffer, not an arg or local or method call */ 624 625 if (BufferNameOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP) 626 { 627 return; 628 } 629 630 /* Get the Index term, must be an integer constant to convert */ 631 632 IndexOp = BufferNameOp->Common.Next; 633 634 /* Major cheat: The Node field is also used for the Tag ptr. Clear it now */ 635 636 IndexOp->Common.Node = NULL; 637 638 OpInfo = AcpiPsGetOpcodeInfo (IndexOp->Common.AmlOpcode); 639 if (OpInfo->ObjectType != ACPI_TYPE_INTEGER) 640 { 641 return; 642 } 643 644 /* Get the bit offset of the descriptor within the buffer */ 645 646 if ((Op->Common.AmlOpcode == AML_CREATE_BIT_FIELD_OP) || 647 (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)) 648 { 649 /* Index operand is a bit offset */ 650 651 BitIndex = (UINT32) IndexOp->Common.Value.Integer; 652 } 653 else 654 { 655 /* Index operand is a byte offset, convert to bits */ 656 657 BitIndex = (UINT32) ACPI_MUL_8 (IndexOp->Common.Value.Integer); 658 } 659 660 /* Lookup the buffer in the namespace */ 661 662 Status = AcpiNsLookup (WalkState->ScopeInfo, 663 BufferNameOp->Common.Value.String, ACPI_TYPE_BUFFER, 664 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, 665 &BufferNode); 666 if (ACPI_FAILURE (Status)) 667 { 668 return; 669 } 670 671 /* Validate object type, we must have a buffer */ 672 673 if (BufferNode->Type != ACPI_TYPE_BUFFER) 674 { 675 return; 676 } 677 678 /* Find the resource descriptor node corresponding to the index */ 679 680 ResourceNode = AcpiDmGetResourceNode (BufferNode, BitIndex); 681 if (!ResourceNode) 682 { 683 return; 684 } 685 686 /* Translate the Index to a resource tag pathname */ 687 688 AcpiGetTagPathname (IndexOp, BufferNode, ResourceNode, BitIndex); 689 } 690 691 692 /******************************************************************************* 693 * 694 * FUNCTION: AcpiDmGetResourceNode 695 * 696 * PARAMETERS: BufferNode - Node for the parent buffer 697 * BitIndex - Index into the resource descriptor 698 * 699 * RETURN: Namespace node for the resource descriptor. NULL if not found 700 * 701 * DESCRIPTION: Find a resource descriptor that corresponds to the bit index 702 * 703 ******************************************************************************/ 704 705 static ACPI_NAMESPACE_NODE * 706 AcpiDmGetResourceNode ( 707 ACPI_NAMESPACE_NODE *BufferNode, 708 UINT32 BitIndex) 709 { 710 ACPI_NAMESPACE_NODE *Node; 711 UINT32 ByteIndex = ACPI_DIV_8 (BitIndex); 712 713 714 /* 715 * Child list contains an entry for each resource descriptor. Find 716 * the descriptor that corresponds to the Index. 717 * 718 * If there are no children, this is not a resource template 719 */ 720 Node = BufferNode->Child; 721 while (Node) 722 { 723 /* 724 * Check if the Index falls within this resource. 725 * 726 * Value contains the resource offset, Object contains the resource 727 * length (both in bytes) 728 */ 729 if ((ByteIndex >= Node->Value) && 730 (ByteIndex < (Node->Value + Node->Length))) 731 { 732 return (Node); 733 } 734 735 Node = Node->Peer; 736 } 737 738 return (NULL); 739 } 740 741 742 /******************************************************************************* 743 * 744 * FUNCTION: AcpiGetTagPathname 745 * 746 * PARAMETERS: BufferNode - Node for the parent buffer 747 * ResourceNode - Node for a resource descriptor 748 * BitIndex - Index into the resource descriptor 749 * 750 * RETURN: Full pathname for a resource tag. NULL if no match. 751 * Path is returned in AML (packed) format. 752 * 753 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag (full pathname) 754 * 755 ******************************************************************************/ 756 757 static char * 758 AcpiGetTagPathname ( 759 ACPI_PARSE_OBJECT *IndexOp, 760 ACPI_NAMESPACE_NODE *BufferNode, 761 ACPI_NAMESPACE_NODE *ResourceNode, 762 UINT32 BitIndex) 763 { 764 ACPI_STATUS Status; 765 UINT32 ResourceBitIndex; 766 UINT8 ResourceTableIndex; 767 ACPI_SIZE RequiredSize; 768 char *Pathname; 769 char *PathnameEnd; 770 AML_RESOURCE *Aml; 771 ACPI_PARSE_OBJECT *Op; 772 char *InternalPath; 773 char *Tag; 774 775 776 /* Get the Op that contains the actual buffer data */ 777 778 Op = BufferNode->Op->Common.Value.Arg; 779 Op = Op->Common.Next; 780 if (!Op) 781 { 782 return (NULL); 783 } 784 785 /* Get the individual resource descriptor and validate it */ 786 787 Aml = ACPI_CAST_PTR ( 788 AML_RESOURCE, &Op->Named.Data[ResourceNode->Value]); 789 790 Status = AcpiUtValidateResource (NULL, Aml, &ResourceTableIndex); 791 if (ACPI_FAILURE (Status)) 792 { 793 return (NULL); 794 } 795 796 /* Get offset into this descriptor (from offset into entire buffer) */ 797 798 ResourceBitIndex = BitIndex - ACPI_MUL_8 (ResourceNode->Value); 799 800 /* Get the tag associated with this resource descriptor and offset */ 801 802 Tag = AcpiDmGetResourceTag (ResourceBitIndex, Aml, ResourceTableIndex); 803 if (!Tag) 804 { 805 return (NULL); 806 } 807 808 /* 809 * Now that we know that we have a reference that can be converted to a 810 * symbol, change the name of the resource to a unique name. 811 */ 812 AcpiDmUpdateResourceName (ResourceNode); 813 814 /* Get the full pathname to the parent buffer */ 815 816 RequiredSize = AcpiNsBuildNormalizedPath (BufferNode, NULL, 0, FALSE); 817 if (!RequiredSize) 818 { 819 return (NULL); 820 } 821 822 Pathname = ACPI_ALLOCATE_ZEROED (RequiredSize + ACPI_PATH_SEGMENT_LENGTH); 823 if (!Pathname) 824 { 825 return (NULL); 826 } 827 828 (void) AcpiNsBuildNormalizedPath (BufferNode, Pathname, 829 RequiredSize, FALSE); 830 831 /* 832 * Create the full path to the resource and tag by: 833 * 1) Remove the buffer nameseg from the end of the pathname 834 * 2) Append the resource descriptor nameseg 835 * 3) Append a dot 836 * 4) Append the field tag nameseg 837 * 838 * Always using the full path is a bit brute force, the path can be 839 * often be optimized with carats (if the original buffer namepath is a 840 * single nameseg). This doesn't really matter, because these paths do not 841 * end up in the final compiled AML, it's just an appearance issue for the 842 * disassembled code. 843 */ 844 PathnameEnd = Pathname + (RequiredSize - ACPI_NAMESEG_SIZE - 1); 845 ACPI_COPY_NAMESEG (PathnameEnd, ResourceNode->Name.Ascii); 846 847 PathnameEnd += ACPI_NAMESEG_SIZE; 848 *PathnameEnd = '.'; 849 850 PathnameEnd++; 851 ACPI_COPY_NAMESEG (PathnameEnd, Tag); 852 853 /* Internalize the namepath to AML format */ 854 855 Status = AcpiNsInternalizeName (Pathname, &InternalPath); 856 ACPI_FREE (Pathname); 857 if (ACPI_FAILURE (Status)) 858 { 859 return (NULL); 860 } 861 862 /* Update the Op with the symbol */ 863 864 AcpiPsInitOp (IndexOp, AML_INT_NAMEPATH_OP); 865 IndexOp->Common.Value.String = InternalPath; 866 867 /* 868 * We will need the tag later. Cheat by putting it in the Node field. 869 * Note, Tag is a const that is part of a lookup table. 870 */ 871 IndexOp->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Tag); 872 return (InternalPath); 873 } 874 875 876 /******************************************************************************* 877 * 878 * FUNCTION: AcpiDmUpdateResourceName 879 * 880 * PARAMETERS: ResourceNode - Node for a resource descriptor 881 * 882 * RETURN: Stores new name in the ResourceNode 883 * 884 * DESCRIPTION: Create a new, unique name for a resource descriptor. Used by 885 * both the disassembly of the descriptor itself and any symbolic 886 * references to the descriptor. Ignored if a unique name has 887 * already been assigned to the resource. 888 * 889 * NOTE: Single threaded, suitable for applications only! 890 * 891 ******************************************************************************/ 892 893 static void 894 AcpiDmUpdateResourceName ( 895 ACPI_NAMESPACE_NODE *ResourceNode) 896 { 897 char Name[ACPI_NAMESEG_SIZE]; 898 899 900 /* Ignore if a unique name has already been assigned */ 901 902 if (ResourceNode->Name.Integer != ACPI_DEFAULT_RESNAME) 903 { 904 return; 905 } 906 907 /* Generate a new ACPI name for the descriptor */ 908 909 Name[0] = '_'; 910 Name[1] = AcpiGbl_Prefix[AcpiGbl_NextPrefix]; 911 Name[2] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 4); 912 Name[3] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 0); 913 914 /* Update globals for next name */ 915 916 AcpiGbl_NextResourceId++; 917 if (AcpiGbl_NextResourceId >= 256) 918 { 919 AcpiGbl_NextResourceId = 0; 920 AcpiGbl_NextPrefix++; 921 922 if (AcpiGbl_NextPrefix > ACPI_NUM_RES_PREFIX) 923 { 924 AcpiGbl_NextPrefix = 0; 925 } 926 } 927 928 /* Change the resource descriptor name */ 929 930 ResourceNode->Name.Integer = *ACPI_CAST_PTR (UINT32, &Name[0]); 931 } 932 933 934 /******************************************************************************* 935 * 936 * FUNCTION: AcpiDmGetResourceTag 937 * 938 * PARAMETERS: BitIndex - Index into the resource descriptor 939 * Resource - Pointer to the raw resource data 940 * ResourceIndex - Index corresponding to the resource type 941 * 942 * RETURN: Pointer to the resource tag (ACPI_NAME). NULL if no match. 943 * 944 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag. 945 * 946 * Note: ResourceIndex should be previously validated and guaranteed to ve 947 * valid. 948 * 949 ******************************************************************************/ 950 951 static char * 952 AcpiDmGetResourceTag ( 953 UINT32 BitIndex, 954 AML_RESOURCE *Resource, 955 UINT8 ResourceIndex) 956 { 957 const ACPI_RESOURCE_TAG *TagList; 958 char *Tag = NULL; 959 960 961 /* Get the tag list for this resource descriptor type */ 962 963 TagList = AcpiGbl_ResourceTags[ResourceIndex]; 964 965 /* 966 * Handle descriptors that have multiple subtypes 967 */ 968 switch (Resource->DescriptorType) 969 { 970 case ACPI_RESOURCE_NAME_ADDRESS16: 971 case ACPI_RESOURCE_NAME_ADDRESS32: 972 case ACPI_RESOURCE_NAME_ADDRESS64: 973 case ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64: 974 /* 975 * Subtype differentiation is the flags. 976 * Kindof brute force, but just blindly search for an index match 977 */ 978 if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_MEMORY_RANGE) 979 { 980 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmMemoryFlagTags); 981 } 982 else if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_IO_RANGE) 983 { 984 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmIoFlagTags); 985 } 986 987 /* If we found a match, all done. Else, drop to normal search below */ 988 989 if (Tag) 990 { 991 return (Tag); 992 } 993 break; 994 995 case ACPI_RESOURCE_NAME_GPIO: 996 997 /* GPIO connection has 2 subtypes: Interrupt and I/O */ 998 999 if (Resource->Gpio.ConnectionType > AML_RESOURCE_MAX_GPIOTYPE) 1000 { 1001 return (NULL); 1002 } 1003 1004 TagList = AcpiGbl_GpioResourceTags[Resource->Gpio.ConnectionType]; 1005 break; 1006 1007 case ACPI_RESOURCE_NAME_SERIAL_BUS: 1008 1009 /* SerialBus has 4 subtypes: I2C, SPI, UART, and CSI2 */ 1010 1011 if ((Resource->CommonSerialBus.Type == 0) || 1012 (Resource->CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE)) 1013 { 1014 return (NULL); 1015 } 1016 1017 TagList = AcpiGbl_SerialResourceTags[Resource->CommonSerialBus.Type]; 1018 break; 1019 1020 default: 1021 1022 break; 1023 } 1024 1025 /* Search for a match against the BitIndex */ 1026 1027 if (TagList) 1028 { 1029 Tag = AcpiDmSearchTagList (BitIndex, TagList); 1030 } 1031 1032 return (Tag); 1033 } 1034 1035 1036 /******************************************************************************* 1037 * 1038 * FUNCTION: AcpiDmSearchTagList 1039 * 1040 * PARAMETERS: BitIndex - Index into the resource descriptor 1041 * TagList - List to search 1042 * 1043 * RETURN: Pointer to a tag (ACPI_NAME). NULL if no match found. 1044 * 1045 * DESCRIPTION: Search a tag list for a match to the input BitIndex. Matches 1046 * a fixed offset to a symbolic resource tag name. 1047 * 1048 ******************************************************************************/ 1049 1050 static char * 1051 AcpiDmSearchTagList ( 1052 UINT32 BitIndex, 1053 const ACPI_RESOURCE_TAG *TagList) 1054 { 1055 1056 /* 1057 * Walk the null-terminated tag list to find a matching bit offset. 1058 * We are looking for an exact match. 1059 */ 1060 for ( ; TagList->Tag; TagList++) 1061 { 1062 if (BitIndex == TagList->BitIndex) 1063 { 1064 return (TagList->Tag); 1065 } 1066 } 1067 1068 /* A matching offset was not found */ 1069 1070 return (NULL); 1071 } 1072 1073 1074 /******************************************************************************* 1075 * 1076 * FUNCTION: AcpiDmFindResources 1077 * 1078 * PARAMETERS: Root - Root of the parse tree 1079 * 1080 * RETURN: None 1081 * 1082 * DESCRIPTION: Add all ResourceTemplate declarations to the namespace. Each 1083 * resource descriptor in each template is given a node -- used 1084 * for later conversion of resource references to symbolic refs. 1085 * 1086 ******************************************************************************/ 1087 1088 void 1089 AcpiDmFindResources ( 1090 ACPI_PARSE_OBJECT *Root) 1091 { 1092 ACPI_PARSE_OBJECT *Op = Root; 1093 ACPI_PARSE_OBJECT *Parent; 1094 1095 1096 /* Walk the entire parse tree */ 1097 1098 while (Op) 1099 { 1100 /* We are interested in Buffer() declarations */ 1101 1102 if (Op->Common.AmlOpcode == AML_BUFFER_OP) 1103 { 1104 /* And only declarations of the form Name (XXXX, Buffer()... ) */ 1105 1106 Parent = Op->Common.Parent; 1107 if (Parent->Common.AmlOpcode == AML_NAME_OP) 1108 { 1109 /* 1110 * If the buffer is a resource template, add the individual 1111 * resource descriptors to the namespace, as children of the 1112 * buffer node. 1113 */ 1114 if (ACPI_SUCCESS (AcpiDmIsResourceTemplate (NULL, Op))) 1115 { 1116 Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE; 1117 AcpiDmAddResourcesToNamespace (Parent->Common.Node, Op); 1118 } 1119 } 1120 } 1121 1122 Op = AcpiPsGetDepthNext (Root, Op); 1123 } 1124 } 1125 1126 1127 /******************************************************************************* 1128 * 1129 * FUNCTION: AcpiDmAddResourcesToNamespace 1130 * 1131 * PARAMETERS: BufferNode - Node for the parent buffer 1132 * Op - Parse op for the buffer 1133 * 1134 * RETURN: None 1135 * 1136 * DESCRIPTION: Add an entire resource template to the namespace. Each 1137 * resource descriptor is added as a namespace node. 1138 * 1139 ******************************************************************************/ 1140 1141 static void 1142 AcpiDmAddResourcesToNamespace ( 1143 ACPI_NAMESPACE_NODE *BufferNode, 1144 ACPI_PARSE_OBJECT *Op) 1145 { 1146 ACPI_PARSE_OBJECT *NextOp; 1147 1148 1149 /* Get to the ByteData list */ 1150 1151 NextOp = Op->Common.Value.Arg; 1152 NextOp = NextOp->Common.Next; 1153 if (!NextOp) 1154 { 1155 return; 1156 } 1157 1158 /* Set Node and Op to point to each other */ 1159 1160 BufferNode->Op = Op; 1161 Op->Common.Node = BufferNode; 1162 1163 /* 1164 * Insert each resource into the namespace 1165 * NextOp contains the Aml pointer and the Aml length 1166 */ 1167 AcpiUtWalkAmlResources (NULL, (UINT8 *) NextOp->Named.Data, 1168 (ACPI_SIZE) NextOp->Common.Value.Integer, 1169 AcpiDmAddResourceToNamespace, (void **) BufferNode); 1170 } 1171 1172 1173 /******************************************************************************* 1174 * 1175 * FUNCTION: AcpiDmAddResourceToNamespace 1176 * 1177 * PARAMETERS: ACPI_WALK_AML_CALLBACK 1178 * BufferNode - Node for the parent buffer 1179 * 1180 * RETURN: Status 1181 * 1182 * DESCRIPTION: Add one resource descriptor to the namespace as a child of the 1183 * parent buffer. The same name is used for each descriptor. This 1184 * is changed later to a unique name if the resource is actually 1185 * referenced by an AML operator. 1186 * 1187 ******************************************************************************/ 1188 1189 static ACPI_STATUS 1190 AcpiDmAddResourceToNamespace ( 1191 UINT8 *Aml, 1192 UINT32 Length, 1193 UINT32 Offset, 1194 UINT8 ResourceIndex, 1195 void **Context) 1196 { 1197 ACPI_STATUS Status; 1198 ACPI_GENERIC_STATE ScopeInfo; 1199 ACPI_NAMESPACE_NODE *Node; 1200 1201 1202 /* TBD: Don't need to add descriptors that have no tags defined? */ 1203 1204 /* Add the resource to the namespace, as child of the buffer */ 1205 1206 ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Context); 1207 Status = AcpiNsLookup (&ScopeInfo, "_TMP", ACPI_TYPE_LOCAL_RESOURCE, 1208 ACPI_IMODE_LOAD_PASS2, 1209 ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_PREFIX_IS_SCOPE, 1210 NULL, &Node); 1211 if (ACPI_FAILURE (Status)) 1212 { 1213 return (AE_OK); 1214 } 1215 1216 /* Set the name to the default, changed later if resource is referenced */ 1217 1218 Node->Name.Integer = ACPI_DEFAULT_RESNAME; 1219 1220 /* Save the offset of the descriptor (within the original buffer) */ 1221 1222 Node->Value = Offset; 1223 Node->Length = Length; 1224 return (AE_OK); 1225 } 1226