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 - 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/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 }; 482 483 484 /* 485 * Dispatch table used to obtain the correct tag table for a descriptor. 486 * 487 * A NULL in this table means one of three things: 488 * 1) The descriptor ID is reserved and invalid 489 * 2) The descriptor has no tags associated with it 490 * 3) The descriptor has subtypes and a separate table will be used. 491 */ 492 static const ACPI_RESOURCE_TAG *AcpiGbl_ResourceTags[] = 493 { 494 /* Small descriptors */ 495 496 NULL, /* 0x00, Reserved */ 497 NULL, /* 0x01, Reserved */ 498 NULL, /* 0x02, Reserved */ 499 NULL, /* 0x03, Reserved */ 500 AcpiDmIrqTags, /* 0x04, ACPI_RESOURCE_NAME_IRQ_FORMAT */ 501 AcpiDmDmaTags, /* 0x05, ACPI_RESOURCE_NAME_DMA_FORMAT */ 502 NULL, /* 0x06, ACPI_RESOURCE_NAME_START_DEPENDENT */ 503 NULL, /* 0x07, ACPI_RESOURCE_NAME_END_DEPENDENT */ 504 AcpiDmIoTags, /* 0x08, ACPI_RESOURCE_NAME_IO_PORT */ 505 AcpiDmFixedIoTags, /* 0x09, ACPI_RESOURCE_NAME_FIXED_IO_PORT */ 506 AcpiDmFixedDmaTags, /* 0x0A, ACPI_RESOURCE_NAME_FIXED_DMA */ 507 NULL, /* 0x0B, Reserved */ 508 NULL, /* 0x0C, Reserved */ 509 NULL, /* 0x0D, Reserved */ 510 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SMALL_VENDOR */ 511 NULL, /* 0x0F, ACPI_RESOURCE_NAME_END_TAG (not used) */ 512 513 /* Large descriptors */ 514 515 NULL, /* 0x00, Reserved */ 516 AcpiDmMemory24Tags, /* 0x01, ACPI_RESOURCE_NAME_MEMORY_24 */ 517 AcpiDmRegisterTags, /* 0x02, ACPI_RESOURCE_NAME_GENERIC_REGISTER */ 518 NULL, /* 0x03, Reserved */ 519 NULL, /* 0x04, ACPI_RESOURCE_NAME_LARGE_VENDOR */ 520 AcpiDmMemory32Tags, /* 0x05, ACPI_RESOURCE_NAME_MEMORY_32 */ 521 AcpiDmFixedMemory32Tags, /* 0x06, ACPI_RESOURCE_NAME_FIXED_MEMORY_32 */ 522 AcpiDmAddress32Tags, /* 0x07, ACPI_RESOURCE_NAME_DWORD_ADDRESS_SPACE */ 523 AcpiDmAddress16Tags, /* 0x08, ACPI_RESOURCE_NAME_WORD_ADDRESS_SPACE */ 524 AcpiDmInterruptTags, /* 0x09, ACPI_RESOURCE_NAME_EXTENDED_XRUPT */ 525 AcpiDmAddress64Tags, /* 0x0A, ACPI_RESOURCE_NAME_QWORD_ADDRESS_SPACE */ 526 AcpiDmExtendedAddressTags, /* 0x0B, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS_SPACE */ 527 NULL, /* 0x0C, ACPI_RESOURCE_NAME_GPIO - Use Subtype table below */ 528 AcpiDmPinFunctionTags, /* 0x0D, ACPI_RESOURCE_NAME_PIN_FUNCTION */ 529 NULL, /* 0x0E, ACPI_RESOURCE_NAME_SERIAL_BUS - Use Subtype table below */ 530 AcpiDmPinConfigTags, /* 0x0F, ACPI_RESOURCE_NAME_PIN_CONFIG */ 531 NULL, /* 0x10, ACPI_RESOURCE_NAME_PIN_GROUP */ 532 AcpiDmPinGroupFunctionTags, /* 0x11, ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION */ 533 AcpiDmPinConfigTags, /* 0x12, ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG - Same as PinConfig */ 534 }; 535 536 /* GPIO Subtypes */ 537 538 static const ACPI_RESOURCE_TAG *AcpiGbl_GpioResourceTags[] = 539 { 540 AcpiDmGpioIntTags, /* 0x00 Interrupt Connection */ 541 AcpiDmGpioIoTags /* 0x01 I/O Connection */ 542 }; 543 544 /* Serial Bus Subtypes */ 545 546 static const ACPI_RESOURCE_TAG *AcpiGbl_SerialResourceTags[] = 547 { 548 NULL, /* 0x00 Reserved */ 549 AcpiDmI2cSerialBusTags, /* 0x01 I2C SerialBus */ 550 AcpiDmSpiSerialBusTags, /* 0x02 SPI SerialBus */ 551 AcpiDmUartSerialBusTags, /* 0x03 UART SerialBus */ 552 AcpiDmCsi2SerialBusTags /* 0x04 CSI2 SerialBus */ 553 }; 554 555 /* 556 * Globals used to generate unique resource descriptor names. We use names that 557 * start with underscore and a prefix letter that is not used by other ACPI 558 * reserved names. To this, we append hex 0x00 through 0xFF. These 5 prefixes 559 * allow for 5*256 = 1280 unique names, probably sufficient for any single ASL 560 * file. If this becomes too small, we can use alpha+numerals for a total 561 * of 5*36*36 = 6480. 562 */ 563 #define ACPI_NUM_RES_PREFIX 5 564 565 static UINT32 AcpiGbl_NextResourceId = 0; 566 static UINT8 AcpiGbl_NextPrefix = 0; 567 static char AcpiGbl_Prefix[ACPI_NUM_RES_PREFIX] = 568 {'Y','Z','J','K','X'}; 569 570 571 /******************************************************************************* 572 * 573 * FUNCTION: AcpiDmCheckResourceReference 574 * 575 * PARAMETERS: Op - Parse Op for the AML opcode 576 * WalkState - Current walk state (with valid scope) 577 * 578 * RETURN: None 579 * 580 * DESCRIPTION: Convert a reference to a resource descriptor to a symbolic 581 * reference if possible 582 * 583 * NOTE: Bit index is used to transparently handle both resource bit 584 * fields and byte fields. 585 * 586 ******************************************************************************/ 587 588 void 589 AcpiDmCheckResourceReference ( 590 ACPI_PARSE_OBJECT *Op, 591 ACPI_WALK_STATE *WalkState) 592 { 593 ACPI_STATUS Status; 594 ACPI_PARSE_OBJECT *BufferNameOp; 595 ACPI_PARSE_OBJECT *IndexOp; 596 ACPI_NAMESPACE_NODE *BufferNode; 597 ACPI_NAMESPACE_NODE *ResourceNode; 598 const ACPI_OPCODE_INFO *OpInfo; 599 UINT32 BitIndex; 600 601 602 /* We are only interested in the CreateXxxxField opcodes */ 603 604 OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode); 605 if (OpInfo->Type != AML_TYPE_CREATE_FIELD) 606 { 607 return; 608 } 609 610 /* Get the buffer term operand */ 611 612 BufferNameOp = AcpiPsGetDepthNext (NULL, Op); 613 614 /* Must be a named buffer, not an arg or local or method call */ 615 616 if (BufferNameOp->Common.AmlOpcode != AML_INT_NAMEPATH_OP) 617 { 618 return; 619 } 620 621 /* Get the Index term, must be an integer constant to convert */ 622 623 IndexOp = BufferNameOp->Common.Next; 624 625 /* Major cheat: The Node field is also used for the Tag ptr. Clear it now */ 626 627 IndexOp->Common.Node = NULL; 628 629 OpInfo = AcpiPsGetOpcodeInfo (IndexOp->Common.AmlOpcode); 630 if (OpInfo->ObjectType != ACPI_TYPE_INTEGER) 631 { 632 return; 633 } 634 635 /* Get the bit offset of the descriptor within the buffer */ 636 637 if ((Op->Common.AmlOpcode == AML_CREATE_BIT_FIELD_OP) || 638 (Op->Common.AmlOpcode == AML_CREATE_FIELD_OP)) 639 { 640 /* Index operand is a bit offset */ 641 642 BitIndex = (UINT32) IndexOp->Common.Value.Integer; 643 } 644 else 645 { 646 /* Index operand is a byte offset, convert to bits */ 647 648 BitIndex = (UINT32) ACPI_MUL_8 (IndexOp->Common.Value.Integer); 649 } 650 651 /* Lookup the buffer in the namespace */ 652 653 Status = AcpiNsLookup (WalkState->ScopeInfo, 654 BufferNameOp->Common.Value.String, ACPI_TYPE_BUFFER, 655 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, 656 &BufferNode); 657 if (ACPI_FAILURE (Status)) 658 { 659 return; 660 } 661 662 /* Validate object type, we must have a buffer */ 663 664 if (BufferNode->Type != ACPI_TYPE_BUFFER) 665 { 666 return; 667 } 668 669 /* Find the resource descriptor node corresponding to the index */ 670 671 ResourceNode = AcpiDmGetResourceNode (BufferNode, BitIndex); 672 if (!ResourceNode) 673 { 674 return; 675 } 676 677 /* Translate the Index to a resource tag pathname */ 678 679 AcpiGetTagPathname (IndexOp, BufferNode, ResourceNode, BitIndex); 680 } 681 682 683 /******************************************************************************* 684 * 685 * FUNCTION: AcpiDmGetResourceNode 686 * 687 * PARAMETERS: BufferNode - Node for the parent buffer 688 * BitIndex - Index into the resource descriptor 689 * 690 * RETURN: Namespace node for the resource descriptor. NULL if not found 691 * 692 * DESCRIPTION: Find a resource descriptor that corresponds to the bit index 693 * 694 ******************************************************************************/ 695 696 static ACPI_NAMESPACE_NODE * 697 AcpiDmGetResourceNode ( 698 ACPI_NAMESPACE_NODE *BufferNode, 699 UINT32 BitIndex) 700 { 701 ACPI_NAMESPACE_NODE *Node; 702 UINT32 ByteIndex = ACPI_DIV_8 (BitIndex); 703 704 705 /* 706 * Child list contains an entry for each resource descriptor. Find 707 * the descriptor that corresponds to the Index. 708 * 709 * If there are no children, this is not a resource template 710 */ 711 Node = BufferNode->Child; 712 while (Node) 713 { 714 /* 715 * Check if the Index falls within this resource. 716 * 717 * Value contains the resource offset, Object contains the resource 718 * length (both in bytes) 719 */ 720 if ((ByteIndex >= Node->Value) && 721 (ByteIndex < (Node->Value + Node->Length))) 722 { 723 return (Node); 724 } 725 726 Node = Node->Peer; 727 } 728 729 return (NULL); 730 } 731 732 733 /******************************************************************************* 734 * 735 * FUNCTION: AcpiGetTagPathname 736 * 737 * PARAMETERS: BufferNode - Node for the parent buffer 738 * ResourceNode - Node for a resource descriptor 739 * BitIndex - Index into the resource descriptor 740 * 741 * RETURN: Full pathname for a resource tag. NULL if no match. 742 * Path is returned in AML (packed) format. 743 * 744 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag (full pathname) 745 * 746 ******************************************************************************/ 747 748 static char * 749 AcpiGetTagPathname ( 750 ACPI_PARSE_OBJECT *IndexOp, 751 ACPI_NAMESPACE_NODE *BufferNode, 752 ACPI_NAMESPACE_NODE *ResourceNode, 753 UINT32 BitIndex) 754 { 755 ACPI_STATUS Status; 756 UINT32 ResourceBitIndex; 757 UINT8 ResourceTableIndex; 758 ACPI_SIZE RequiredSize; 759 char *Pathname; 760 char *PathnameEnd; 761 AML_RESOURCE *Aml; 762 ACPI_PARSE_OBJECT *Op; 763 char *InternalPath; 764 char *Tag; 765 766 767 /* Get the Op that contains the actual buffer data */ 768 769 Op = BufferNode->Op->Common.Value.Arg; 770 Op = Op->Common.Next; 771 if (!Op) 772 { 773 return (NULL); 774 } 775 776 /* Get the individual resource descriptor and validate it */ 777 778 Aml = ACPI_CAST_PTR ( 779 AML_RESOURCE, &Op->Named.Data[ResourceNode->Value]); 780 781 Status = AcpiUtValidateResource (NULL, Aml, &ResourceTableIndex); 782 if (ACPI_FAILURE (Status)) 783 { 784 return (NULL); 785 } 786 787 /* Get offset into this descriptor (from offset into entire buffer) */ 788 789 ResourceBitIndex = BitIndex - ACPI_MUL_8 (ResourceNode->Value); 790 791 /* Get the tag associated with this resource descriptor and offset */ 792 793 Tag = AcpiDmGetResourceTag (ResourceBitIndex, Aml, ResourceTableIndex); 794 if (!Tag) 795 { 796 return (NULL); 797 } 798 799 /* 800 * Now that we know that we have a reference that can be converted to a 801 * symbol, change the name of the resource to a unique name. 802 */ 803 AcpiDmUpdateResourceName (ResourceNode); 804 805 /* Get the full pathname to the parent buffer */ 806 807 RequiredSize = AcpiNsBuildNormalizedPath (BufferNode, NULL, 0, FALSE); 808 if (!RequiredSize) 809 { 810 return (NULL); 811 } 812 813 Pathname = ACPI_ALLOCATE_ZEROED (RequiredSize + ACPI_PATH_SEGMENT_LENGTH); 814 if (!Pathname) 815 { 816 return (NULL); 817 } 818 819 (void) AcpiNsBuildNormalizedPath (BufferNode, Pathname, 820 RequiredSize, FALSE); 821 822 /* 823 * Create the full path to the resource and tag by: 824 * 1) Remove the buffer nameseg from the end of the pathname 825 * 2) Append the resource descriptor nameseg 826 * 3) Append a dot 827 * 4) Append the field tag nameseg 828 * 829 * Always using the full path is a bit brute force, the path can be 830 * often be optimized with carats (if the original buffer namepath is a 831 * single nameseg). This doesn't really matter, because these paths do not 832 * end up in the final compiled AML, it's just an appearance issue for the 833 * disassembled code. 834 */ 835 PathnameEnd = Pathname + (RequiredSize - ACPI_NAMESEG_SIZE - 1); 836 ACPI_COPY_NAMESEG (PathnameEnd, ResourceNode->Name.Ascii); 837 838 PathnameEnd += ACPI_NAMESEG_SIZE; 839 *PathnameEnd = '.'; 840 841 PathnameEnd++; 842 ACPI_COPY_NAMESEG (PathnameEnd, Tag); 843 844 /* Internalize the namepath to AML format */ 845 846 Status = AcpiNsInternalizeName (Pathname, &InternalPath); 847 ACPI_FREE (Pathname); 848 if (ACPI_FAILURE (Status)) 849 { 850 return (NULL); 851 } 852 853 /* Update the Op with the symbol */ 854 855 AcpiPsInitOp (IndexOp, AML_INT_NAMEPATH_OP); 856 IndexOp->Common.Value.String = InternalPath; 857 858 /* 859 * We will need the tag later. Cheat by putting it in the Node field. 860 * Note, Tag is a const that is part of a lookup table. 861 */ 862 IndexOp->Common.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Tag); 863 return (InternalPath); 864 } 865 866 867 /******************************************************************************* 868 * 869 * FUNCTION: AcpiDmUpdateResourceName 870 * 871 * PARAMETERS: ResourceNode - Node for a resource descriptor 872 * 873 * RETURN: Stores new name in the ResourceNode 874 * 875 * DESCRIPTION: Create a new, unique name for a resource descriptor. Used by 876 * both the disassembly of the descriptor itself and any symbolic 877 * references to the descriptor. Ignored if a unique name has 878 * already been assigned to the resource. 879 * 880 * NOTE: Single threaded, suitable for applications only! 881 * 882 ******************************************************************************/ 883 884 static void 885 AcpiDmUpdateResourceName ( 886 ACPI_NAMESPACE_NODE *ResourceNode) 887 { 888 char Name[ACPI_NAMESEG_SIZE]; 889 890 891 /* Ignore if a unique name has already been assigned */ 892 893 if (ResourceNode->Name.Integer != ACPI_DEFAULT_RESNAME) 894 { 895 return; 896 } 897 898 /* Generate a new ACPI name for the descriptor */ 899 900 Name[0] = '_'; 901 Name[1] = AcpiGbl_Prefix[AcpiGbl_NextPrefix]; 902 Name[2] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 4); 903 Name[3] = AcpiUtHexToAsciiChar ((UINT64) AcpiGbl_NextResourceId, 0); 904 905 /* Update globals for next name */ 906 907 AcpiGbl_NextResourceId++; 908 if (AcpiGbl_NextResourceId >= 256) 909 { 910 AcpiGbl_NextResourceId = 0; 911 AcpiGbl_NextPrefix++; 912 913 if (AcpiGbl_NextPrefix > ACPI_NUM_RES_PREFIX) 914 { 915 AcpiGbl_NextPrefix = 0; 916 } 917 } 918 919 /* Change the resource descriptor name */ 920 921 ResourceNode->Name.Integer = *ACPI_CAST_PTR (UINT32, &Name[0]); 922 } 923 924 925 /******************************************************************************* 926 * 927 * FUNCTION: AcpiDmGetResourceTag 928 * 929 * PARAMETERS: BitIndex - Index into the resource descriptor 930 * Resource - Pointer to the raw resource data 931 * ResourceIndex - Index corresponding to the resource type 932 * 933 * RETURN: Pointer to the resource tag (ACPI_NAME). NULL if no match. 934 * 935 * DESCRIPTION: Convert a BitIndex into a symbolic resource tag. 936 * 937 * Note: ResourceIndex should be previously validated and guaranteed to ve 938 * valid. 939 * 940 ******************************************************************************/ 941 942 static char * 943 AcpiDmGetResourceTag ( 944 UINT32 BitIndex, 945 AML_RESOURCE *Resource, 946 UINT8 ResourceIndex) 947 { 948 const ACPI_RESOURCE_TAG *TagList; 949 char *Tag = NULL; 950 951 952 /* Get the tag list for this resource descriptor type */ 953 954 TagList = AcpiGbl_ResourceTags[ResourceIndex]; 955 956 /* 957 * Handle descriptors that have multiple subtypes 958 */ 959 switch (Resource->DescriptorType) 960 { 961 case ACPI_RESOURCE_NAME_ADDRESS16: 962 case ACPI_RESOURCE_NAME_ADDRESS32: 963 case ACPI_RESOURCE_NAME_ADDRESS64: 964 case ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64: 965 /* 966 * Subtype differentiation is the flags. 967 * Kindof brute force, but just blindly search for an index match 968 */ 969 if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_MEMORY_RANGE) 970 { 971 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmMemoryFlagTags); 972 } 973 else if (Resource->Address.ResourceType == ACPI_ADDRESS_TYPE_IO_RANGE) 974 { 975 Tag = AcpiDmSearchTagList (BitIndex, AcpiDmIoFlagTags); 976 } 977 978 /* If we found a match, all done. Else, drop to normal search below */ 979 980 if (Tag) 981 { 982 return (Tag); 983 } 984 break; 985 986 case ACPI_RESOURCE_NAME_GPIO: 987 988 /* GPIO connection has 2 subtypes: Interrupt and I/O */ 989 990 if (Resource->Gpio.ConnectionType > AML_RESOURCE_MAX_GPIOTYPE) 991 { 992 return (NULL); 993 } 994 995 TagList = AcpiGbl_GpioResourceTags[Resource->Gpio.ConnectionType]; 996 break; 997 998 case ACPI_RESOURCE_NAME_SERIAL_BUS: 999 1000 /* SerialBus has 4 subtypes: I2C, SPI, UART, and CSI2 */ 1001 1002 if ((Resource->CommonSerialBus.Type == 0) || 1003 (Resource->CommonSerialBus.Type > AML_RESOURCE_MAX_SERIALBUSTYPE)) 1004 { 1005 return (NULL); 1006 } 1007 1008 TagList = AcpiGbl_SerialResourceTags[Resource->CommonSerialBus.Type]; 1009 break; 1010 1011 default: 1012 1013 break; 1014 } 1015 1016 /* Search for a match against the BitIndex */ 1017 1018 if (TagList) 1019 { 1020 Tag = AcpiDmSearchTagList (BitIndex, TagList); 1021 } 1022 1023 return (Tag); 1024 } 1025 1026 1027 /******************************************************************************* 1028 * 1029 * FUNCTION: AcpiDmSearchTagList 1030 * 1031 * PARAMETERS: BitIndex - Index into the resource descriptor 1032 * TagList - List to search 1033 * 1034 * RETURN: Pointer to a tag (ACPI_NAME). NULL if no match found. 1035 * 1036 * DESCRIPTION: Search a tag list for a match to the input BitIndex. Matches 1037 * a fixed offset to a symbolic resource tag name. 1038 * 1039 ******************************************************************************/ 1040 1041 static char * 1042 AcpiDmSearchTagList ( 1043 UINT32 BitIndex, 1044 const ACPI_RESOURCE_TAG *TagList) 1045 { 1046 1047 /* 1048 * Walk the null-terminated tag list to find a matching bit offset. 1049 * We are looking for an exact match. 1050 */ 1051 for ( ; TagList->Tag; TagList++) 1052 { 1053 if (BitIndex == TagList->BitIndex) 1054 { 1055 return (TagList->Tag); 1056 } 1057 } 1058 1059 /* A matching offset was not found */ 1060 1061 return (NULL); 1062 } 1063 1064 1065 /******************************************************************************* 1066 * 1067 * FUNCTION: AcpiDmFindResources 1068 * 1069 * PARAMETERS: Root - Root of the parse tree 1070 * 1071 * RETURN: None 1072 * 1073 * DESCRIPTION: Add all ResourceTemplate declarations to the namespace. Each 1074 * resource descriptor in each template is given a node -- used 1075 * for later conversion of resource references to symbolic refs. 1076 * 1077 ******************************************************************************/ 1078 1079 void 1080 AcpiDmFindResources ( 1081 ACPI_PARSE_OBJECT *Root) 1082 { 1083 ACPI_PARSE_OBJECT *Op = Root; 1084 ACPI_PARSE_OBJECT *Parent; 1085 1086 1087 /* Walk the entire parse tree */ 1088 1089 while (Op) 1090 { 1091 /* We are interested in Buffer() declarations */ 1092 1093 if (Op->Common.AmlOpcode == AML_BUFFER_OP) 1094 { 1095 /* And only declarations of the form Name (XXXX, Buffer()... ) */ 1096 1097 Parent = Op->Common.Parent; 1098 if (Parent->Common.AmlOpcode == AML_NAME_OP) 1099 { 1100 /* 1101 * If the buffer is a resource template, add the individual 1102 * resource descriptors to the namespace, as children of the 1103 * buffer node. 1104 */ 1105 if (ACPI_SUCCESS (AcpiDmIsResourceTemplate (NULL, Op))) 1106 { 1107 Op->Common.DisasmOpcode = ACPI_DASM_RESOURCE; 1108 AcpiDmAddResourcesToNamespace (Parent->Common.Node, Op); 1109 } 1110 } 1111 } 1112 1113 Op = AcpiPsGetDepthNext (Root, Op); 1114 } 1115 } 1116 1117 1118 /******************************************************************************* 1119 * 1120 * FUNCTION: AcpiDmAddResourcesToNamespace 1121 * 1122 * PARAMETERS: BufferNode - Node for the parent buffer 1123 * Op - Parse op for the buffer 1124 * 1125 * RETURN: None 1126 * 1127 * DESCRIPTION: Add an entire resource template to the namespace. Each 1128 * resource descriptor is added as a namespace node. 1129 * 1130 ******************************************************************************/ 1131 1132 static void 1133 AcpiDmAddResourcesToNamespace ( 1134 ACPI_NAMESPACE_NODE *BufferNode, 1135 ACPI_PARSE_OBJECT *Op) 1136 { 1137 ACPI_PARSE_OBJECT *NextOp; 1138 1139 1140 /* Get to the ByteData list */ 1141 1142 NextOp = Op->Common.Value.Arg; 1143 NextOp = NextOp->Common.Next; 1144 if (!NextOp) 1145 { 1146 return; 1147 } 1148 1149 /* Set Node and Op to point to each other */ 1150 1151 BufferNode->Op = Op; 1152 Op->Common.Node = BufferNode; 1153 1154 /* 1155 * Insert each resource into the namespace 1156 * NextOp contains the Aml pointer and the Aml length 1157 */ 1158 AcpiUtWalkAmlResources (NULL, (UINT8 *) NextOp->Named.Data, 1159 (ACPI_SIZE) NextOp->Common.Value.Integer, 1160 AcpiDmAddResourceToNamespace, (void **) BufferNode); 1161 } 1162 1163 1164 /******************************************************************************* 1165 * 1166 * FUNCTION: AcpiDmAddResourceToNamespace 1167 * 1168 * PARAMETERS: ACPI_WALK_AML_CALLBACK 1169 * BufferNode - Node for the parent buffer 1170 * 1171 * RETURN: Status 1172 * 1173 * DESCRIPTION: Add one resource descriptor to the namespace as a child of the 1174 * parent buffer. The same name is used for each descriptor. This 1175 * is changed later to a unique name if the resource is actually 1176 * referenced by an AML operator. 1177 * 1178 ******************************************************************************/ 1179 1180 static ACPI_STATUS 1181 AcpiDmAddResourceToNamespace ( 1182 UINT8 *Aml, 1183 UINT32 Length, 1184 UINT32 Offset, 1185 UINT8 ResourceIndex, 1186 void **Context) 1187 { 1188 ACPI_STATUS Status; 1189 ACPI_GENERIC_STATE ScopeInfo; 1190 ACPI_NAMESPACE_NODE *Node; 1191 1192 1193 /* TBD: Don't need to add descriptors that have no tags defined? */ 1194 1195 /* Add the resource to the namespace, as child of the buffer */ 1196 1197 ScopeInfo.Scope.Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Context); 1198 Status = AcpiNsLookup (&ScopeInfo, "_TMP", ACPI_TYPE_LOCAL_RESOURCE, 1199 ACPI_IMODE_LOAD_PASS2, 1200 ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_PREFIX_IS_SCOPE, 1201 NULL, &Node); 1202 if (ACPI_FAILURE (Status)) 1203 { 1204 return (AE_OK); 1205 } 1206 1207 /* Set the name to the default, changed later if resource is referenced */ 1208 1209 Node->Name.Integer = ACPI_DEFAULT_RESNAME; 1210 1211 /* Save the offset of the descriptor (within the original buffer) */ 1212 1213 Node->Value = Offset; 1214 Node->Length = Length; 1215 return (AE_OK); 1216 } 1217