| 1 | /******************************************************************************* |
| 2 | * |
| 3 | * Module Name: rsutils - Utilities for the resource manager |
| 4 | * |
| 5 | ******************************************************************************/ |
| 6 | |
| 7 | /* |
| 8 | * Copyright (C) 2000 - 2016, Intel Corp. |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
| 44 | #include "acpi.h" |
| 45 | #include "accommon.h" |
| 46 | #include "acnamesp.h" |
| 47 | #include "acresrc.h" |
| 48 | |
| 49 | |
| 50 | #define _COMPONENT ACPI_RESOURCES |
| 51 | ACPI_MODULE_NAME ("rsutils" ) |
| 52 | |
| 53 | |
| 54 | /******************************************************************************* |
| 55 | * |
| 56 | * FUNCTION: AcpiRsDecodeBitmask |
| 57 | * |
| 58 | * PARAMETERS: Mask - Bitmask to decode |
| 59 | * List - Where the converted list is returned |
| 60 | * |
| 61 | * RETURN: Count of bits set (length of list) |
| 62 | * |
| 63 | * DESCRIPTION: Convert a bit mask into a list of values |
| 64 | * |
| 65 | ******************************************************************************/ |
| 66 | |
| 67 | UINT8 |
| 68 | AcpiRsDecodeBitmask ( |
| 69 | UINT16 Mask, |
| 70 | UINT8 *List) |
| 71 | { |
| 72 | UINT8 i; |
| 73 | UINT8 BitCount; |
| 74 | |
| 75 | |
| 76 | ACPI_FUNCTION_ENTRY (); |
| 77 | |
| 78 | |
| 79 | /* Decode the mask bits */ |
| 80 | |
| 81 | for (i = 0, BitCount = 0; Mask; i++) |
| 82 | { |
| 83 | if (Mask & 0x0001) |
| 84 | { |
| 85 | List[BitCount] = i; |
| 86 | BitCount++; |
| 87 | } |
| 88 | |
| 89 | Mask >>= 1; |
| 90 | } |
| 91 | |
| 92 | return (BitCount); |
| 93 | } |
| 94 | |
| 95 | |
| 96 | /******************************************************************************* |
| 97 | * |
| 98 | * FUNCTION: AcpiRsEncodeBitmask |
| 99 | * |
| 100 | * PARAMETERS: List - List of values to encode |
| 101 | * Count - Length of list |
| 102 | * |
| 103 | * RETURN: Encoded bitmask |
| 104 | * |
| 105 | * DESCRIPTION: Convert a list of values to an encoded bitmask |
| 106 | * |
| 107 | ******************************************************************************/ |
| 108 | |
| 109 | UINT16 |
| 110 | AcpiRsEncodeBitmask ( |
| 111 | UINT8 *List, |
| 112 | UINT8 Count) |
| 113 | { |
| 114 | UINT32 i; |
| 115 | UINT16 Mask; |
| 116 | |
| 117 | |
| 118 | ACPI_FUNCTION_ENTRY (); |
| 119 | |
| 120 | |
| 121 | /* Encode the list into a single bitmask */ |
| 122 | |
| 123 | for (i = 0, Mask = 0; i < Count; i++) |
| 124 | { |
| 125 | Mask |= (0x1 << List[i]); |
| 126 | } |
| 127 | |
| 128 | return (Mask); |
| 129 | } |
| 130 | |
| 131 | |
| 132 | /******************************************************************************* |
| 133 | * |
| 134 | * FUNCTION: AcpiRsMoveData |
| 135 | * |
| 136 | * PARAMETERS: Destination - Pointer to the destination descriptor |
| 137 | * Source - Pointer to the source descriptor |
| 138 | * ItemCount - How many items to move |
| 139 | * MoveType - Byte width |
| 140 | * |
| 141 | * RETURN: None |
| 142 | * |
| 143 | * DESCRIPTION: Move multiple data items from one descriptor to another. Handles |
| 144 | * alignment issues and endian issues if necessary, as configured |
| 145 | * via the ACPI_MOVE_* macros. (This is why a memcpy is not used) |
| 146 | * |
| 147 | ******************************************************************************/ |
| 148 | |
| 149 | void |
| 150 | AcpiRsMoveData ( |
| 151 | void *Destination, |
| 152 | void *Source, |
| 153 | UINT16 ItemCount, |
| 154 | UINT8 MoveType) |
| 155 | { |
| 156 | UINT32 i; |
| 157 | |
| 158 | |
| 159 | ACPI_FUNCTION_ENTRY (); |
| 160 | |
| 161 | |
| 162 | /* One move per item */ |
| 163 | |
| 164 | for (i = 0; i < ItemCount; i++) |
| 165 | { |
| 166 | switch (MoveType) |
| 167 | { |
| 168 | /* |
| 169 | * For the 8-bit case, we can perform the move all at once |
| 170 | * since there are no alignment or endian issues |
| 171 | */ |
| 172 | case ACPI_RSC_MOVE8: |
| 173 | case ACPI_RSC_MOVE_GPIO_RES: |
| 174 | case ACPI_RSC_MOVE_SERIAL_VEN: |
| 175 | case ACPI_RSC_MOVE_SERIAL_RES: |
| 176 | |
| 177 | memcpy (Destination, Source, ItemCount); |
| 178 | return; |
| 179 | |
| 180 | /* |
| 181 | * 16-, 32-, and 64-bit cases must use the move macros that perform |
| 182 | * endian conversion and/or accommodate hardware that cannot perform |
| 183 | * misaligned memory transfers |
| 184 | */ |
| 185 | case ACPI_RSC_MOVE16: |
| 186 | case ACPI_RSC_MOVE_GPIO_PIN: |
| 187 | |
| 188 | ACPI_MOVE_16_TO_16 ( |
| 189 | &ACPI_CAST_PTR (UINT16, Destination)[i], |
| 190 | &ACPI_CAST_PTR (UINT16, Source)[i]); |
| 191 | break; |
| 192 | |
| 193 | case ACPI_RSC_MOVE32: |
| 194 | |
| 195 | ACPI_MOVE_32_TO_32 ( |
| 196 | &ACPI_CAST_PTR (UINT32, Destination)[i], |
| 197 | &ACPI_CAST_PTR (UINT32, Source)[i]); |
| 198 | break; |
| 199 | |
| 200 | case ACPI_RSC_MOVE64: |
| 201 | |
| 202 | ACPI_MOVE_64_TO_64 ( |
| 203 | &ACPI_CAST_PTR (UINT64, Destination)[i], |
| 204 | &ACPI_CAST_PTR (UINT64, Source)[i]); |
| 205 | break; |
| 206 | |
| 207 | default: |
| 208 | |
| 209 | return; |
| 210 | } |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | |
| 215 | /******************************************************************************* |
| 216 | * |
| 217 | * FUNCTION: AcpiRsSetResourceLength |
| 218 | * |
| 219 | * PARAMETERS: TotalLength - Length of the AML descriptor, including |
| 220 | * the header and length fields. |
| 221 | * Aml - Pointer to the raw AML descriptor |
| 222 | * |
| 223 | * RETURN: None |
| 224 | * |
| 225 | * DESCRIPTION: Set the ResourceLength field of an AML |
| 226 | * resource descriptor, both Large and Small descriptors are |
| 227 | * supported automatically. Note: Descriptor Type field must |
| 228 | * be valid. |
| 229 | * |
| 230 | ******************************************************************************/ |
| 231 | |
| 232 | void |
| 233 | ( |
| 234 | ACPI_RSDESC_SIZE TotalLength, |
| 235 | AML_RESOURCE *Aml) |
| 236 | { |
| 237 | ACPI_RS_LENGTH ResourceLength; |
| 238 | |
| 239 | |
| 240 | ACPI_FUNCTION_ENTRY (); |
| 241 | |
| 242 | |
| 243 | /* Length is the total descriptor length minus the header length */ |
| 244 | |
| 245 | ResourceLength = (ACPI_RS_LENGTH) |
| 246 | (TotalLength - AcpiUtGetResourceHeaderLength (Aml)); |
| 247 | |
| 248 | /* Length is stored differently for large and small descriptors */ |
| 249 | |
| 250 | if (Aml->SmallHeader.DescriptorType & ACPI_RESOURCE_NAME_LARGE) |
| 251 | { |
| 252 | /* Large descriptor -- bytes 1-2 contain the 16-bit length */ |
| 253 | |
| 254 | ACPI_MOVE_16_TO_16 ( |
| 255 | &Aml->LargeHeader.ResourceLength, &ResourceLength); |
| 256 | } |
| 257 | else |
| 258 | { |
| 259 | /* |
| 260 | * Small descriptor -- bits 2:0 of byte 0 contain the length |
| 261 | * Clear any existing length, preserving descriptor type bits |
| 262 | */ |
| 263 | Aml->SmallHeader.DescriptorType = (UINT8) |
| 264 | ((Aml->SmallHeader.DescriptorType & |
| 265 | ~ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK) |
| 266 | | ResourceLength); |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | |
| 271 | /******************************************************************************* |
| 272 | * |
| 273 | * FUNCTION: AcpiRsSetResourceHeader |
| 274 | * |
| 275 | * PARAMETERS: DescriptorType - Byte to be inserted as the type |
| 276 | * TotalLength - Length of the AML descriptor, including |
| 277 | * the header and length fields. |
| 278 | * Aml - Pointer to the raw AML descriptor |
| 279 | * |
| 280 | * RETURN: None |
| 281 | * |
| 282 | * DESCRIPTION: Set the DescriptorType and ResourceLength fields of an AML |
| 283 | * resource descriptor, both Large and Small descriptors are |
| 284 | * supported automatically |
| 285 | * |
| 286 | ******************************************************************************/ |
| 287 | |
| 288 | void |
| 289 | ( |
| 290 | UINT8 DescriptorType, |
| 291 | ACPI_RSDESC_SIZE TotalLength, |
| 292 | AML_RESOURCE *Aml) |
| 293 | { |
| 294 | ACPI_FUNCTION_ENTRY (); |
| 295 | |
| 296 | |
| 297 | /* Set the Resource Type */ |
| 298 | |
| 299 | Aml->SmallHeader.DescriptorType = DescriptorType; |
| 300 | |
| 301 | /* Set the Resource Length */ |
| 302 | |
| 303 | AcpiRsSetResourceLength (TotalLength, Aml); |
| 304 | } |
| 305 | |
| 306 | |
| 307 | /******************************************************************************* |
| 308 | * |
| 309 | * FUNCTION: AcpiRsStrcpy |
| 310 | * |
| 311 | * PARAMETERS: Destination - Pointer to the destination string |
| 312 | * Source - Pointer to the source string |
| 313 | * |
| 314 | * RETURN: String length, including NULL terminator |
| 315 | * |
| 316 | * DESCRIPTION: Local string copy that returns the string length, saving a |
| 317 | * strcpy followed by a strlen. |
| 318 | * |
| 319 | ******************************************************************************/ |
| 320 | |
| 321 | static UINT16 |
| 322 | ( |
| 323 | char *Destination, |
| 324 | char *Source) |
| 325 | { |
| 326 | UINT16 i; |
| 327 | |
| 328 | |
| 329 | ACPI_FUNCTION_ENTRY (); |
| 330 | |
| 331 | |
| 332 | for (i = 0; Source[i]; i++) |
| 333 | { |
| 334 | Destination[i] = Source[i]; |
| 335 | } |
| 336 | |
| 337 | Destination[i] = 0; |
| 338 | |
| 339 | /* Return string length including the NULL terminator */ |
| 340 | |
| 341 | return ((UINT16) (i + 1)); |
| 342 | } |
| 343 | |
| 344 | |
| 345 | /******************************************************************************* |
| 346 | * |
| 347 | * FUNCTION: AcpiRsGetResourceSource |
| 348 | * |
| 349 | * PARAMETERS: ResourceLength - Length field of the descriptor |
| 350 | * MinimumLength - Minimum length of the descriptor (minus |
| 351 | * any optional fields) |
| 352 | * ResourceSource - Where the ResourceSource is returned |
| 353 | * Aml - Pointer to the raw AML descriptor |
| 354 | * StringPtr - (optional) where to store the actual |
| 355 | * ResourceSource string |
| 356 | * |
| 357 | * RETURN: Length of the string plus NULL terminator, rounded up to native |
| 358 | * word boundary |
| 359 | * |
| 360 | * DESCRIPTION: Copy the optional ResourceSource data from a raw AML descriptor |
| 361 | * to an internal resource descriptor |
| 362 | * |
| 363 | ******************************************************************************/ |
| 364 | |
| 365 | ACPI_RS_LENGTH |
| 366 | AcpiRsGetResourceSource ( |
| 367 | ACPI_RS_LENGTH ResourceLength, |
| 368 | ACPI_RS_LENGTH MinimumLength, |
| 369 | ACPI_RESOURCE_SOURCE *ResourceSource, |
| 370 | AML_RESOURCE *Aml, |
| 371 | char *StringPtr) |
| 372 | { |
| 373 | ACPI_RSDESC_SIZE TotalLength; |
| 374 | UINT8 *AmlResourceSource; |
| 375 | |
| 376 | |
| 377 | ACPI_FUNCTION_ENTRY (); |
| 378 | |
| 379 | |
| 380 | TotalLength = ResourceLength + sizeof (AML_RESOURCE_LARGE_HEADER); |
| 381 | AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength); |
| 382 | |
| 383 | /* |
| 384 | * ResourceSource is present if the length of the descriptor is longer |
| 385 | * than the minimum length. |
| 386 | * |
| 387 | * Note: Some resource descriptors will have an additional null, so |
| 388 | * we add 1 to the minimum length. |
| 389 | */ |
| 390 | if (TotalLength > (ACPI_RSDESC_SIZE) (MinimumLength + 1)) |
| 391 | { |
| 392 | /* Get the ResourceSourceIndex */ |
| 393 | |
| 394 | ResourceSource->Index = AmlResourceSource[0]; |
| 395 | |
| 396 | ResourceSource->StringPtr = StringPtr; |
| 397 | if (!StringPtr) |
| 398 | { |
| 399 | /* |
| 400 | * String destination pointer is not specified; Set the String |
| 401 | * pointer to the end of the current ResourceSource structure. |
| 402 | */ |
| 403 | ResourceSource->StringPtr = ACPI_ADD_PTR ( |
| 404 | char, ResourceSource, sizeof (ACPI_RESOURCE_SOURCE)); |
| 405 | } |
| 406 | |
| 407 | /* |
| 408 | * In order for the Resource length to be a multiple of the native |
| 409 | * word, calculate the length of the string (+1 for NULL terminator) |
| 410 | * and expand to the next word multiple. |
| 411 | * |
| 412 | * Zero the entire area of the buffer. |
| 413 | */ |
| 414 | TotalLength = (UINT32) strlen ( |
| 415 | ACPI_CAST_PTR (char, &AmlResourceSource[1])) + 1; |
| 416 | |
| 417 | TotalLength = (UINT32) ACPI_ROUND_UP_TO_NATIVE_WORD (TotalLength); |
| 418 | |
| 419 | memset (ResourceSource->StringPtr, 0, TotalLength); |
| 420 | |
| 421 | /* Copy the ResourceSource string to the destination */ |
| 422 | |
| 423 | ResourceSource->StringLength = AcpiRsStrcpy ( |
| 424 | ResourceSource->StringPtr, |
| 425 | ACPI_CAST_PTR (char, &AmlResourceSource[1])); |
| 426 | |
| 427 | return ((ACPI_RS_LENGTH) TotalLength); |
| 428 | } |
| 429 | |
| 430 | /* ResourceSource is not present */ |
| 431 | |
| 432 | ResourceSource->Index = 0; |
| 433 | ResourceSource->StringLength = 0; |
| 434 | ResourceSource->StringPtr = NULL; |
| 435 | return (0); |
| 436 | } |
| 437 | |
| 438 | |
| 439 | /******************************************************************************* |
| 440 | * |
| 441 | * FUNCTION: AcpiRsSetResourceSource |
| 442 | * |
| 443 | * PARAMETERS: Aml - Pointer to the raw AML descriptor |
| 444 | * MinimumLength - Minimum length of the descriptor (minus |
| 445 | * any optional fields) |
| 446 | * ResourceSource - Internal ResourceSource |
| 447 | |
| 448 | * |
| 449 | * RETURN: Total length of the AML descriptor |
| 450 | * |
| 451 | * DESCRIPTION: Convert an optional ResourceSource from internal format to a |
| 452 | * raw AML resource descriptor |
| 453 | * |
| 454 | ******************************************************************************/ |
| 455 | |
| 456 | ACPI_RSDESC_SIZE |
| 457 | ( |
| 458 | AML_RESOURCE *Aml, |
| 459 | ACPI_RS_LENGTH MinimumLength, |
| 460 | ACPI_RESOURCE_SOURCE *ResourceSource) |
| 461 | { |
| 462 | UINT8 *AmlResourceSource; |
| 463 | ACPI_RSDESC_SIZE DescriptorLength; |
| 464 | |
| 465 | |
| 466 | ACPI_FUNCTION_ENTRY (); |
| 467 | |
| 468 | |
| 469 | DescriptorLength = MinimumLength; |
| 470 | |
| 471 | /* Non-zero string length indicates presence of a ResourceSource */ |
| 472 | |
| 473 | if (ResourceSource->StringLength) |
| 474 | { |
| 475 | /* Point to the end of the AML descriptor */ |
| 476 | |
| 477 | AmlResourceSource = ACPI_ADD_PTR (UINT8, Aml, MinimumLength); |
| 478 | |
| 479 | /* Copy the ResourceSourceIndex */ |
| 480 | |
| 481 | AmlResourceSource[0] = (UINT8) ResourceSource->Index; |
| 482 | |
| 483 | /* Copy the ResourceSource string */ |
| 484 | |
| 485 | strcpy (ACPI_CAST_PTR (char, &AmlResourceSource[1]), |
| 486 | ResourceSource->StringPtr); |
| 487 | |
| 488 | /* |
| 489 | * Add the length of the string (+ 1 for null terminator) to the |
| 490 | * final descriptor length |
| 491 | */ |
| 492 | DescriptorLength += ((ACPI_RSDESC_SIZE) |
| 493 | ResourceSource->StringLength + 1); |
| 494 | } |
| 495 | |
| 496 | /* Return the new total length of the AML descriptor */ |
| 497 | |
| 498 | return (DescriptorLength); |
| 499 | } |
| 500 | |
| 501 | |
| 502 | /******************************************************************************* |
| 503 | * |
| 504 | * FUNCTION: AcpiRsGetPrtMethodData |
| 505 | * |
| 506 | * PARAMETERS: Node - Device node |
| 507 | * RetBuffer - Pointer to a buffer structure for the |
| 508 | * results |
| 509 | * |
| 510 | * RETURN: Status |
| 511 | * |
| 512 | * DESCRIPTION: This function is called to get the _PRT value of an object |
| 513 | * contained in an object specified by the handle passed in |
| 514 | * |
| 515 | * If the function fails an appropriate status will be returned |
| 516 | * and the contents of the callers buffer is undefined. |
| 517 | * |
| 518 | ******************************************************************************/ |
| 519 | |
| 520 | ACPI_STATUS |
| 521 | AcpiRsGetPrtMethodData ( |
| 522 | ACPI_NAMESPACE_NODE *Node, |
| 523 | ACPI_BUFFER *RetBuffer) |
| 524 | { |
| 525 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 526 | ACPI_STATUS Status; |
| 527 | |
| 528 | |
| 529 | ACPI_FUNCTION_TRACE (RsGetPrtMethodData); |
| 530 | |
| 531 | |
| 532 | /* Parameters guaranteed valid by caller */ |
| 533 | |
| 534 | /* Execute the method, no parameters */ |
| 535 | |
| 536 | Status = AcpiUtEvaluateObject ( |
| 537 | Node, METHOD_NAME__PRT, ACPI_BTYPE_PACKAGE, &ObjDesc); |
| 538 | if (ACPI_FAILURE (Status)) |
| 539 | { |
| 540 | return_ACPI_STATUS (Status); |
| 541 | } |
| 542 | |
| 543 | /* |
| 544 | * Create a resource linked list from the byte stream buffer that comes |
| 545 | * back from the _CRS method execution. |
| 546 | */ |
| 547 | Status = AcpiRsCreatePciRoutingTable (ObjDesc, RetBuffer); |
| 548 | |
| 549 | /* On exit, we must delete the object returned by EvaluateObject */ |
| 550 | |
| 551 | AcpiUtRemoveReference (ObjDesc); |
| 552 | return_ACPI_STATUS (Status); |
| 553 | } |
| 554 | |
| 555 | |
| 556 | /******************************************************************************* |
| 557 | * |
| 558 | * FUNCTION: AcpiRsGetCrsMethodData |
| 559 | * |
| 560 | * PARAMETERS: Node - Device node |
| 561 | * RetBuffer - Pointer to a buffer structure for the |
| 562 | * results |
| 563 | * |
| 564 | * RETURN: Status |
| 565 | * |
| 566 | * DESCRIPTION: This function is called to get the _CRS value of an object |
| 567 | * contained in an object specified by the handle passed in |
| 568 | * |
| 569 | * If the function fails an appropriate status will be returned |
| 570 | * and the contents of the callers buffer is undefined. |
| 571 | * |
| 572 | ******************************************************************************/ |
| 573 | |
| 574 | ACPI_STATUS |
| 575 | AcpiRsGetCrsMethodData ( |
| 576 | ACPI_NAMESPACE_NODE *Node, |
| 577 | ACPI_BUFFER *RetBuffer) |
| 578 | { |
| 579 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 580 | ACPI_STATUS Status; |
| 581 | |
| 582 | |
| 583 | ACPI_FUNCTION_TRACE (RsGetCrsMethodData); |
| 584 | |
| 585 | |
| 586 | /* Parameters guaranteed valid by caller */ |
| 587 | |
| 588 | /* Execute the method, no parameters */ |
| 589 | |
| 590 | Status = AcpiUtEvaluateObject ( |
| 591 | Node, METHOD_NAME__CRS, ACPI_BTYPE_BUFFER, &ObjDesc); |
| 592 | if (ACPI_FAILURE (Status)) |
| 593 | { |
| 594 | return_ACPI_STATUS (Status); |
| 595 | } |
| 596 | |
| 597 | /* |
| 598 | * Make the call to create a resource linked list from the |
| 599 | * byte stream buffer that comes back from the _CRS method |
| 600 | * execution. |
| 601 | */ |
| 602 | Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); |
| 603 | |
| 604 | /* On exit, we must delete the object returned by evaluateObject */ |
| 605 | |
| 606 | AcpiUtRemoveReference (ObjDesc); |
| 607 | return_ACPI_STATUS (Status); |
| 608 | } |
| 609 | |
| 610 | |
| 611 | /******************************************************************************* |
| 612 | * |
| 613 | * FUNCTION: AcpiRsGetPrsMethodData |
| 614 | * |
| 615 | * PARAMETERS: Node - Device node |
| 616 | * RetBuffer - Pointer to a buffer structure for the |
| 617 | * results |
| 618 | * |
| 619 | * RETURN: Status |
| 620 | * |
| 621 | * DESCRIPTION: This function is called to get the _PRS value of an object |
| 622 | * contained in an object specified by the handle passed in |
| 623 | * |
| 624 | * If the function fails an appropriate status will be returned |
| 625 | * and the contents of the callers buffer is undefined. |
| 626 | * |
| 627 | ******************************************************************************/ |
| 628 | |
| 629 | ACPI_STATUS |
| 630 | AcpiRsGetPrsMethodData ( |
| 631 | ACPI_NAMESPACE_NODE *Node, |
| 632 | ACPI_BUFFER *RetBuffer) |
| 633 | { |
| 634 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 635 | ACPI_STATUS Status; |
| 636 | |
| 637 | |
| 638 | ACPI_FUNCTION_TRACE (RsGetPrsMethodData); |
| 639 | |
| 640 | |
| 641 | /* Parameters guaranteed valid by caller */ |
| 642 | |
| 643 | /* Execute the method, no parameters */ |
| 644 | |
| 645 | Status = AcpiUtEvaluateObject ( |
| 646 | Node, METHOD_NAME__PRS, ACPI_BTYPE_BUFFER, &ObjDesc); |
| 647 | if (ACPI_FAILURE (Status)) |
| 648 | { |
| 649 | return_ACPI_STATUS (Status); |
| 650 | } |
| 651 | |
| 652 | /* |
| 653 | * Make the call to create a resource linked list from the |
| 654 | * byte stream buffer that comes back from the _CRS method |
| 655 | * execution. |
| 656 | */ |
| 657 | Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); |
| 658 | |
| 659 | /* On exit, we must delete the object returned by evaluateObject */ |
| 660 | |
| 661 | AcpiUtRemoveReference (ObjDesc); |
| 662 | return_ACPI_STATUS (Status); |
| 663 | } |
| 664 | |
| 665 | |
| 666 | /******************************************************************************* |
| 667 | * |
| 668 | * FUNCTION: AcpiRsGetAeiMethodData |
| 669 | * |
| 670 | * PARAMETERS: Node - Device node |
| 671 | * RetBuffer - Pointer to a buffer structure for the |
| 672 | * results |
| 673 | * |
| 674 | * RETURN: Status |
| 675 | * |
| 676 | * DESCRIPTION: This function is called to get the _AEI value of an object |
| 677 | * contained in an object specified by the handle passed in |
| 678 | * |
| 679 | * If the function fails an appropriate status will be returned |
| 680 | * and the contents of the callers buffer is undefined. |
| 681 | * |
| 682 | ******************************************************************************/ |
| 683 | |
| 684 | ACPI_STATUS |
| 685 | AcpiRsGetAeiMethodData ( |
| 686 | ACPI_NAMESPACE_NODE *Node, |
| 687 | ACPI_BUFFER *RetBuffer) |
| 688 | { |
| 689 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 690 | ACPI_STATUS Status; |
| 691 | |
| 692 | |
| 693 | ACPI_FUNCTION_TRACE (RsGetAeiMethodData); |
| 694 | |
| 695 | |
| 696 | /* Parameters guaranteed valid by caller */ |
| 697 | |
| 698 | /* Execute the method, no parameters */ |
| 699 | |
| 700 | Status = AcpiUtEvaluateObject ( |
| 701 | Node, METHOD_NAME__AEI, ACPI_BTYPE_BUFFER, &ObjDesc); |
| 702 | if (ACPI_FAILURE (Status)) |
| 703 | { |
| 704 | return_ACPI_STATUS (Status); |
| 705 | } |
| 706 | |
| 707 | /* |
| 708 | * Make the call to create a resource linked list from the |
| 709 | * byte stream buffer that comes back from the _CRS method |
| 710 | * execution. |
| 711 | */ |
| 712 | Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); |
| 713 | |
| 714 | /* On exit, we must delete the object returned by evaluateObject */ |
| 715 | |
| 716 | AcpiUtRemoveReference (ObjDesc); |
| 717 | return_ACPI_STATUS (Status); |
| 718 | } |
| 719 | |
| 720 | |
| 721 | /******************************************************************************* |
| 722 | * |
| 723 | * FUNCTION: AcpiRsGetMethodData |
| 724 | * |
| 725 | * PARAMETERS: Handle - Handle to the containing object |
| 726 | * Path - Path to method, relative to Handle |
| 727 | * RetBuffer - Pointer to a buffer structure for the |
| 728 | * results |
| 729 | * |
| 730 | * RETURN: Status |
| 731 | * |
| 732 | * DESCRIPTION: This function is called to get the _CRS or _PRS value of an |
| 733 | * object contained in an object specified by the handle passed in |
| 734 | * |
| 735 | * If the function fails an appropriate status will be returned |
| 736 | * and the contents of the callers buffer is undefined. |
| 737 | * |
| 738 | ******************************************************************************/ |
| 739 | |
| 740 | ACPI_STATUS |
| 741 | AcpiRsGetMethodData ( |
| 742 | ACPI_HANDLE Handle, |
| 743 | const char *Path, |
| 744 | ACPI_BUFFER *RetBuffer) |
| 745 | { |
| 746 | ACPI_OPERAND_OBJECT *ObjDesc; |
| 747 | ACPI_STATUS Status; |
| 748 | |
| 749 | |
| 750 | ACPI_FUNCTION_TRACE (RsGetMethodData); |
| 751 | |
| 752 | |
| 753 | /* Parameters guaranteed valid by caller */ |
| 754 | |
| 755 | /* Execute the method, no parameters */ |
| 756 | |
| 757 | Status = AcpiUtEvaluateObject ( |
| 758 | ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Handle), |
| 759 | Path, ACPI_BTYPE_BUFFER, &ObjDesc); |
| 760 | if (ACPI_FAILURE (Status)) |
| 761 | { |
| 762 | return_ACPI_STATUS (Status); |
| 763 | } |
| 764 | |
| 765 | /* |
| 766 | * Make the call to create a resource linked list from the |
| 767 | * byte stream buffer that comes back from the method |
| 768 | * execution. |
| 769 | */ |
| 770 | Status = AcpiRsCreateResourceList (ObjDesc, RetBuffer); |
| 771 | |
| 772 | /* On exit, we must delete the object returned by EvaluateObject */ |
| 773 | |
| 774 | AcpiUtRemoveReference (ObjDesc); |
| 775 | return_ACPI_STATUS (Status); |
| 776 | } |
| 777 | |
| 778 | |
| 779 | /******************************************************************************* |
| 780 | * |
| 781 | * FUNCTION: AcpiRsSetSrsMethodData |
| 782 | * |
| 783 | * PARAMETERS: Node - Device node |
| 784 | * InBuffer - Pointer to a buffer structure of the |
| 785 | * parameter |
| 786 | * |
| 787 | * RETURN: Status |
| 788 | * |
| 789 | * DESCRIPTION: This function is called to set the _SRS of an object contained |
| 790 | * in an object specified by the handle passed in |
| 791 | * |
| 792 | * If the function fails an appropriate status will be returned |
| 793 | * and the contents of the callers buffer is undefined. |
| 794 | * |
| 795 | * Note: Parameters guaranteed valid by caller |
| 796 | * |
| 797 | ******************************************************************************/ |
| 798 | |
| 799 | ACPI_STATUS |
| 800 | ( |
| 801 | ACPI_NAMESPACE_NODE *Node, |
| 802 | ACPI_BUFFER *InBuffer) |
| 803 | { |
| 804 | ACPI_EVALUATE_INFO *Info; |
| 805 | ACPI_OPERAND_OBJECT *Args[2]; |
| 806 | ACPI_STATUS Status; |
| 807 | ACPI_BUFFER Buffer; |
| 808 | |
| 809 | |
| 810 | ACPI_FUNCTION_TRACE (RsSetSrsMethodData); |
| 811 | |
| 812 | |
| 813 | /* Allocate and initialize the evaluation information block */ |
| 814 | |
| 815 | Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); |
| 816 | if (!Info) |
| 817 | { |
| 818 | return_ACPI_STATUS (AE_NO_MEMORY); |
| 819 | } |
| 820 | |
| 821 | Info->PrefixNode = Node; |
| 822 | Info->RelativePathname = __UNCONST(METHOD_NAME__SRS); |
| 823 | Info->Parameters = Args; |
| 824 | Info->Flags = ACPI_IGNORE_RETURN_VALUE; |
| 825 | |
| 826 | /* |
| 827 | * The InBuffer parameter will point to a linked list of |
| 828 | * resource parameters. It needs to be formatted into a |
| 829 | * byte stream to be sent in as an input parameter to _SRS |
| 830 | * |
| 831 | * Convert the linked list into a byte stream |
| 832 | */ |
| 833 | Buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; |
| 834 | Status = AcpiRsCreateAmlResources (InBuffer, &Buffer); |
| 835 | if (ACPI_FAILURE (Status)) |
| 836 | { |
| 837 | goto Cleanup; |
| 838 | } |
| 839 | |
| 840 | /* Create and initialize the method parameter object */ |
| 841 | |
| 842 | Args[0] = AcpiUtCreateInternalObject (ACPI_TYPE_BUFFER); |
| 843 | if (!Args[0]) |
| 844 | { |
| 845 | /* |
| 846 | * Must free the buffer allocated above (otherwise it is freed |
| 847 | * later) |
| 848 | */ |
| 849 | ACPI_FREE (Buffer.Pointer); |
| 850 | Status = AE_NO_MEMORY; |
| 851 | goto Cleanup; |
| 852 | } |
| 853 | |
| 854 | Args[0]->Buffer.Length = (UINT32) Buffer.Length; |
| 855 | Args[0]->Buffer.Pointer = Buffer.Pointer; |
| 856 | Args[0]->Common.Flags = AOPOBJ_DATA_VALID; |
| 857 | Args[1] = NULL; |
| 858 | |
| 859 | /* Execute the method, no return value is expected */ |
| 860 | |
| 861 | Status = AcpiNsEvaluate (Info); |
| 862 | |
| 863 | /* Clean up and return the status from AcpiNsEvaluate */ |
| 864 | |
| 865 | AcpiUtRemoveReference (Args[0]); |
| 866 | |
| 867 | Cleanup: |
| 868 | ACPI_FREE (Info); |
| 869 | return_ACPI_STATUS (Status); |
| 870 | } |
| 871 | |