1 2 /****************************************************************************** 3 * 4 * Module Name: hwxface - Public ACPICA hardware interfaces 5 * 6 *****************************************************************************/ 7 8 /****************************************************************************** 9 * 10 * 1. Copyright Notice 11 * 12 * Some or all of this work - Copyright (c) 1999 - 2012, Intel Corp. 13 * All rights reserved. 14 * 15 * 2. License 16 * 17 * 2.1. This is your license from Intel Corp. under its intellectual property 18 * rights. You may have additional license terms from the party that provided 19 * you this software, covering your right to use that party's intellectual 20 * property rights. 21 * 22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 23 * copy of the source code appearing in this file ("Covered Code") an 24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 25 * base code distributed originally by Intel ("Original Intel Code") to copy, 26 * make derivatives, distribute, use and display any portion of the Covered 27 * Code in any form, with the right to sublicense such rights; and 28 * 29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 30 * license (with the right to sublicense), under only those claims of Intel 31 * patents that are infringed by the Original Intel Code, to make, use, sell, 32 * offer to sell, and import the Covered Code and derivative works thereof 33 * solely to the minimum extent necessary to exercise the above copyright 34 * license, and in no event shall the patent license extend to any additions 35 * to or modifications of the Original Intel Code. No other license or right 36 * is granted directly or by implication, estoppel or otherwise; 37 * 38 * The above copyright and patent license is granted only if the following 39 * conditions are met: 40 * 41 * 3. Conditions 42 * 43 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 44 * Redistribution of source code of any substantial portion of the Covered 45 * Code or modification with rights to further distribute source must include 46 * the above Copyright Notice, the above License, this list of Conditions, 47 * and the following Disclaimer and Export Compliance provision. In addition, 48 * Licensee must cause all Covered Code to which Licensee contributes to 49 * contain a file documenting the changes Licensee made to create that Covered 50 * Code and the date of any change. Licensee must include in that file the 51 * documentation of any changes made by any predecessor Licensee. Licensee 52 * must include a prominent statement that the modification is derived, 53 * directly or indirectly, from Original Intel Code. 54 * 55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 56 * Redistribution of source code of any substantial portion of the Covered 57 * Code or modification without rights to further distribute source must 58 * include the following Disclaimer and Export Compliance provision in the 59 * documentation and/or other materials provided with distribution. In 60 * addition, Licensee may not authorize further sublicense of source of any 61 * portion of the Covered Code, and must include terms to the effect that the 62 * license from Licensee to its licensee is limited to the intellectual 63 * property embodied in the software Licensee provides to its licensee, and 64 * not to intellectual property embodied in modifications its licensee may 65 * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 #include "acpi.h" 118 #include "accommon.h" 119 #include "acnamesp.h" 120 121 #define _COMPONENT ACPI_HARDWARE 122 ACPI_MODULE_NAME ("hwxface") 123 124 125 /****************************************************************************** 126 * 127 * FUNCTION: AcpiReset 128 * 129 * PARAMETERS: None 130 * 131 * RETURN: Status 132 * 133 * DESCRIPTION: Set reset register in memory or IO space. Note: Does not 134 * support reset register in PCI config space, this must be 135 * handled separately. 136 * 137 ******************************************************************************/ 138 139 ACPI_STATUS 140 AcpiReset ( 141 void) 142 { 143 ACPI_GENERIC_ADDRESS *ResetReg; 144 ACPI_STATUS Status; 145 146 147 ACPI_FUNCTION_TRACE (AcpiReset); 148 149 150 ResetReg = &AcpiGbl_FADT.ResetRegister; 151 152 /* Check if the reset register is supported */ 153 154 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 155 !ResetReg->Address) 156 { 157 return_ACPI_STATUS (AE_NOT_EXIST); 158 } 159 160 if (ResetReg->SpaceId == ACPI_ADR_SPACE_SYSTEM_IO) 161 { 162 /* 163 * For I/O space, write directly to the OSL. This bypasses the port 164 * validation mechanism, which may block a valid write to the reset 165 * register. 166 */ 167 Status = AcpiOsWritePort ((ACPI_IO_ADDRESS) ResetReg->Address, 168 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 169 } 170 else 171 { 172 /* Write the reset value to the reset register */ 173 174 Status = AcpiHwWrite (AcpiGbl_FADT.ResetValue, ResetReg); 175 } 176 177 return_ACPI_STATUS (Status); 178 } 179 180 ACPI_EXPORT_SYMBOL (AcpiReset) 181 182 183 /****************************************************************************** 184 * 185 * FUNCTION: AcpiRead 186 * 187 * PARAMETERS: Value - Where the value is returned 188 * Reg - GAS register structure 189 * 190 * RETURN: Status 191 * 192 * DESCRIPTION: Read from either memory or IO space. 193 * 194 * LIMITATIONS: <These limitations also apply to AcpiWrite> 195 * BitWidth must be exactly 8, 16, 32, or 64. 196 * SpaceID must be SystemMemory or SystemIO. 197 * BitOffset and AccessWidth are currently ignored, as there has 198 * not been a need to implement these. 199 * 200 ******************************************************************************/ 201 202 ACPI_STATUS 203 AcpiRead ( 204 UINT64 *ReturnValue, 205 ACPI_GENERIC_ADDRESS *Reg) 206 { 207 UINT32 Value; 208 UINT32 Width; 209 UINT64 Address; 210 ACPI_STATUS Status; 211 212 213 ACPI_FUNCTION_NAME (AcpiRead); 214 215 216 if (!ReturnValue) 217 { 218 return (AE_BAD_PARAMETER); 219 } 220 221 /* Validate contents of the GAS register. Allow 64-bit transfers */ 222 223 Status = AcpiHwValidateRegister (Reg, 64, &Address); 224 if (ACPI_FAILURE (Status)) 225 { 226 return (Status); 227 } 228 229 /* Initialize entire 64-bit return value to zero */ 230 231 *ReturnValue = 0; 232 Value = 0; 233 234 /* 235 * Two address spaces supported: Memory or IO. PCI_Config is 236 * not supported here because the GAS structure is insufficient 237 */ 238 if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY) 239 { 240 Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS) 241 Address, ReturnValue, Reg->BitWidth); 242 if (ACPI_FAILURE (Status)) 243 { 244 return (Status); 245 } 246 } 247 else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ 248 { 249 Width = Reg->BitWidth; 250 if (Width == 64) 251 { 252 Width = 32; /* Break into two 32-bit transfers */ 253 } 254 255 Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) 256 Address, &Value, Width); 257 if (ACPI_FAILURE (Status)) 258 { 259 return (Status); 260 } 261 *ReturnValue = Value; 262 263 if (Reg->BitWidth == 64) 264 { 265 /* Read the top 32 bits */ 266 267 Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) 268 (Address + 4), &Value, 32); 269 if (ACPI_FAILURE (Status)) 270 { 271 return (Status); 272 } 273 *ReturnValue |= ((UINT64) Value << 32); 274 } 275 } 276 277 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 278 "Read: %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n", 279 ACPI_FORMAT_UINT64 (*ReturnValue), Reg->BitWidth, 280 ACPI_FORMAT_UINT64 (Address), 281 AcpiUtGetRegionName (Reg->SpaceId))); 282 283 return (Status); 284 } 285 286 ACPI_EXPORT_SYMBOL (AcpiRead) 287 288 289 /****************************************************************************** 290 * 291 * FUNCTION: AcpiWrite 292 * 293 * PARAMETERS: Value - Value to be written 294 * Reg - GAS register structure 295 * 296 * RETURN: Status 297 * 298 * DESCRIPTION: Write to either memory or IO space. 299 * 300 ******************************************************************************/ 301 302 ACPI_STATUS 303 AcpiWrite ( 304 UINT64 Value, 305 ACPI_GENERIC_ADDRESS *Reg) 306 { 307 UINT32 Width; 308 UINT64 Address; 309 ACPI_STATUS Status; 310 311 312 ACPI_FUNCTION_NAME (AcpiWrite); 313 314 315 /* Validate contents of the GAS register. Allow 64-bit transfers */ 316 317 Status = AcpiHwValidateRegister (Reg, 64, &Address); 318 if (ACPI_FAILURE (Status)) 319 { 320 return (Status); 321 } 322 323 /* 324 * Two address spaces supported: Memory or IO. PCI_Config is 325 * not supported here because the GAS structure is insufficient 326 */ 327 if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY) 328 { 329 Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS) 330 Address, Value, Reg->BitWidth); 331 if (ACPI_FAILURE (Status)) 332 { 333 return (Status); 334 } 335 } 336 else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ 337 { 338 Width = Reg->BitWidth; 339 if (Width == 64) 340 { 341 Width = 32; /* Break into two 32-bit transfers */ 342 } 343 344 Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) 345 Address, ACPI_LODWORD (Value), Width); 346 if (ACPI_FAILURE (Status)) 347 { 348 return (Status); 349 } 350 351 if (Reg->BitWidth == 64) 352 { 353 Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) 354 (Address + 4), ACPI_HIDWORD (Value), 32); 355 if (ACPI_FAILURE (Status)) 356 { 357 return (Status); 358 } 359 } 360 } 361 362 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 363 "Wrote: %8.8X%8.8X width %2d to %8.8X%8.8X (%s)\n", 364 ACPI_FORMAT_UINT64 (Value), Reg->BitWidth, 365 ACPI_FORMAT_UINT64 (Address), 366 AcpiUtGetRegionName (Reg->SpaceId))); 367 368 return (Status); 369 } 370 371 ACPI_EXPORT_SYMBOL (AcpiWrite) 372 373 374 #if (!ACPI_REDUCED_HARDWARE) 375 /******************************************************************************* 376 * 377 * FUNCTION: AcpiReadBitRegister 378 * 379 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 380 * ReturnValue - Value that was read from the register, 381 * normalized to bit position zero. 382 * 383 * RETURN: Status and the value read from the specified Register. Value 384 * returned is normalized to bit0 (is shifted all the way right) 385 * 386 * DESCRIPTION: ACPI BitRegister read function. Does not acquire the HW lock. 387 * 388 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 389 * PM2 Control. 390 * 391 * Note: The hardware lock is not required when reading the ACPI bit registers 392 * since almost all of them are single bit and it does not matter that 393 * the parent hardware register can be split across two physical 394 * registers. The only multi-bit field is SLP_TYP in the PM1 control 395 * register, but this field does not cross an 8-bit boundary (nor does 396 * it make much sense to actually read this field.) 397 * 398 ******************************************************************************/ 399 400 ACPI_STATUS 401 AcpiReadBitRegister ( 402 UINT32 RegisterId, 403 UINT32 *ReturnValue) 404 { 405 ACPI_BIT_REGISTER_INFO *BitRegInfo; 406 UINT32 RegisterValue; 407 UINT32 Value; 408 ACPI_STATUS Status; 409 410 411 ACPI_FUNCTION_TRACE_U32 (AcpiReadBitRegister, RegisterId); 412 413 414 /* Get the info structure corresponding to the requested ACPI Register */ 415 416 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 417 if (!BitRegInfo) 418 { 419 return_ACPI_STATUS (AE_BAD_PARAMETER); 420 } 421 422 /* Read the entire parent register */ 423 424 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 425 &RegisterValue); 426 if (ACPI_FAILURE (Status)) 427 { 428 return_ACPI_STATUS (Status); 429 } 430 431 /* Normalize the value that was read, mask off other bits */ 432 433 Value = ((RegisterValue & BitRegInfo->AccessBitMask) 434 >> BitRegInfo->BitPosition); 435 436 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 437 "BitReg %X, ParentReg %X, Actual %8.8X, ReturnValue %8.8X\n", 438 RegisterId, BitRegInfo->ParentRegister, RegisterValue, Value)); 439 440 *ReturnValue = Value; 441 return_ACPI_STATUS (AE_OK); 442 } 443 444 ACPI_EXPORT_SYMBOL (AcpiReadBitRegister) 445 446 447 /******************************************************************************* 448 * 449 * FUNCTION: AcpiWriteBitRegister 450 * 451 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 452 * Value - Value to write to the register, in bit 453 * position zero. The bit is automaticallly 454 * shifted to the correct position. 455 * 456 * RETURN: Status 457 * 458 * DESCRIPTION: ACPI Bit Register write function. Acquires the hardware lock 459 * since most operations require a read/modify/write sequence. 460 * 461 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 462 * PM2 Control. 463 * 464 * Note that at this level, the fact that there may be actually two 465 * hardware registers (A and B - and B may not exist) is abstracted. 466 * 467 ******************************************************************************/ 468 469 ACPI_STATUS 470 AcpiWriteBitRegister ( 471 UINT32 RegisterId, 472 UINT32 Value) 473 { 474 ACPI_BIT_REGISTER_INFO *BitRegInfo; 475 ACPI_CPU_FLAGS LockFlags; 476 UINT32 RegisterValue; 477 ACPI_STATUS Status = AE_OK; 478 479 480 ACPI_FUNCTION_TRACE_U32 (AcpiWriteBitRegister, RegisterId); 481 482 483 /* Get the info structure corresponding to the requested ACPI Register */ 484 485 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 486 if (!BitRegInfo) 487 { 488 return_ACPI_STATUS (AE_BAD_PARAMETER); 489 } 490 491 LockFlags = AcpiOsAcquireLock (AcpiGbl_HardwareLock); 492 493 /* 494 * At this point, we know that the parent register is one of the 495 * following: PM1 Status, PM1 Enable, PM1 Control, or PM2 Control 496 */ 497 if (BitRegInfo->ParentRegister != ACPI_REGISTER_PM1_STATUS) 498 { 499 /* 500 * 1) Case for PM1 Enable, PM1 Control, and PM2 Control 501 * 502 * Perform a register read to preserve the bits that we are not 503 * interested in 504 */ 505 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 506 &RegisterValue); 507 if (ACPI_FAILURE (Status)) 508 { 509 goto UnlockAndExit; 510 } 511 512 /* 513 * Insert the input bit into the value that was just read 514 * and write the register 515 */ 516 ACPI_REGISTER_INSERT_VALUE (RegisterValue, BitRegInfo->BitPosition, 517 BitRegInfo->AccessBitMask, Value); 518 519 Status = AcpiHwRegisterWrite (BitRegInfo->ParentRegister, 520 RegisterValue); 521 } 522 else 523 { 524 /* 525 * 2) Case for PM1 Status 526 * 527 * The Status register is different from the rest. Clear an event 528 * by writing 1, writing 0 has no effect. So, the only relevant 529 * information is the single bit we're interested in, all others 530 * should be written as 0 so they will be left unchanged. 531 */ 532 RegisterValue = ACPI_REGISTER_PREPARE_BITS (Value, 533 BitRegInfo->BitPosition, BitRegInfo->AccessBitMask); 534 535 /* No need to write the register if value is all zeros */ 536 537 if (RegisterValue) 538 { 539 Status = AcpiHwRegisterWrite (ACPI_REGISTER_PM1_STATUS, 540 RegisterValue); 541 } 542 } 543 544 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 545 "BitReg %X, ParentReg %X, Value %8.8X, Actual %8.8X\n", 546 RegisterId, BitRegInfo->ParentRegister, Value, RegisterValue)); 547 548 549 UnlockAndExit: 550 551 AcpiOsReleaseLock (AcpiGbl_HardwareLock, LockFlags); 552 return_ACPI_STATUS (Status); 553 } 554 555 ACPI_EXPORT_SYMBOL (AcpiWriteBitRegister) 556 557 #endif /* !ACPI_REDUCED_HARDWARE */ 558 559 560 /******************************************************************************* 561 * 562 * FUNCTION: AcpiGetSleepTypeData 563 * 564 * PARAMETERS: SleepState - Numeric sleep state 565 * *SleepTypeA - Where SLP_TYPa is returned 566 * *SleepTypeB - Where SLP_TYPb is returned 567 * 568 * RETURN: Status - ACPI status 569 * 570 * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep 571 * state. 572 * 573 ******************************************************************************/ 574 575 ACPI_STATUS 576 AcpiGetSleepTypeData ( 577 UINT8 SleepState, 578 UINT8 *SleepTypeA, 579 UINT8 *SleepTypeB) 580 { 581 ACPI_STATUS Status = AE_OK; 582 ACPI_EVALUATE_INFO *Info; 583 584 585 ACPI_FUNCTION_TRACE (AcpiGetSleepTypeData); 586 587 588 /* Validate parameters */ 589 590 if ((SleepState > ACPI_S_STATES_MAX) || 591 !SleepTypeA || 592 !SleepTypeB) 593 { 594 return_ACPI_STATUS (AE_BAD_PARAMETER); 595 } 596 597 /* Allocate the evaluation information block */ 598 599 Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); 600 if (!Info) 601 { 602 return_ACPI_STATUS (AE_NO_MEMORY); 603 } 604 605 Info->Pathname = ACPI_CAST_PTR (char, AcpiGbl_SleepStateNames[SleepState]); 606 607 /* Evaluate the namespace object containing the values for this state */ 608 609 Status = AcpiNsEvaluate (Info); 610 if (ACPI_FAILURE (Status)) 611 { 612 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 613 "%s while evaluating SleepState [%s]\n", 614 AcpiFormatException (Status), Info->Pathname)); 615 616 goto Cleanup; 617 } 618 619 /* Must have a return object */ 620 621 if (!Info->ReturnObject) 622 { 623 ACPI_ERROR ((AE_INFO, "No Sleep State object returned from [%s]", 624 Info->Pathname)); 625 Status = AE_NOT_EXIST; 626 } 627 628 /* It must be of type Package */ 629 630 else if (Info->ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) 631 { 632 ACPI_ERROR ((AE_INFO, "Sleep State return object is not a Package")); 633 Status = AE_AML_OPERAND_TYPE; 634 } 635 636 /* 637 * The package must have at least two elements. NOTE (March 2005): This 638 * goes against the current ACPI spec which defines this object as a 639 * package with one encoded DWORD element. However, existing practice 640 * by BIOS vendors seems to be to have 2 or more elements, at least 641 * one per sleep type (A/B). 642 */ 643 else if (Info->ReturnObject->Package.Count < 2) 644 { 645 ACPI_ERROR ((AE_INFO, 646 "Sleep State return package does not have at least two elements")); 647 Status = AE_AML_NO_OPERAND; 648 } 649 650 /* The first two elements must both be of type Integer */ 651 652 else if (((Info->ReturnObject->Package.Elements[0])->Common.Type 653 != ACPI_TYPE_INTEGER) || 654 ((Info->ReturnObject->Package.Elements[1])->Common.Type 655 != ACPI_TYPE_INTEGER)) 656 { 657 ACPI_ERROR ((AE_INFO, 658 "Sleep State return package elements are not both Integers " 659 "(%s, %s)", 660 AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[0]), 661 AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[1]))); 662 Status = AE_AML_OPERAND_TYPE; 663 } 664 else 665 { 666 /* Valid _Sx_ package size, type, and value */ 667 668 *SleepTypeA = (UINT8) 669 (Info->ReturnObject->Package.Elements[0])->Integer.Value; 670 *SleepTypeB = (UINT8) 671 (Info->ReturnObject->Package.Elements[1])->Integer.Value; 672 } 673 674 if (ACPI_FAILURE (Status)) 675 { 676 ACPI_EXCEPTION ((AE_INFO, Status, 677 "While evaluating SleepState [%s], bad Sleep object %p type %s", 678 Info->Pathname, Info->ReturnObject, 679 AcpiUtGetObjectTypeName (Info->ReturnObject))); 680 } 681 682 AcpiUtRemoveReference (Info->ReturnObject); 683 684 Cleanup: 685 ACPI_FREE (Info); 686 return_ACPI_STATUS (Status); 687 } 688 689 ACPI_EXPORT_SYMBOL (AcpiGetSleepTypeData) 690