1 /****************************************************************************** 2 * 3 * Module Name: hwxface - Public ACPICA hardware interfaces 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2012, 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 #include "acpi.h" 117 #include "accommon.h" 118 #include "acnamesp.h" 119 120 #define _COMPONENT ACPI_HARDWARE 121 ACPI_MODULE_NAME ("hwxface") 122 123 124 /****************************************************************************** 125 * 126 * FUNCTION: AcpiReset 127 * 128 * PARAMETERS: None 129 * 130 * RETURN: Status 131 * 132 * DESCRIPTION: Set reset register in memory or IO space. Note: Does not 133 * support reset register in PCI config space, this must be 134 * handled separately. 135 * 136 ******************************************************************************/ 137 138 ACPI_STATUS 139 AcpiReset ( 140 void) 141 { 142 ACPI_GENERIC_ADDRESS *ResetReg; 143 ACPI_STATUS Status; 144 145 146 ACPI_FUNCTION_TRACE (AcpiReset); 147 148 149 ResetReg = &AcpiGbl_FADT.ResetRegister; 150 151 /* Check if the reset register is supported */ 152 153 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 154 !ResetReg->Address) 155 { 156 return_ACPI_STATUS (AE_NOT_EXIST); 157 } 158 159 if (ResetReg->SpaceId == ACPI_ADR_SPACE_SYSTEM_IO) 160 { 161 /* 162 * For I/O space, write directly to the OSL. This bypasses the port 163 * validation mechanism, which may block a valid write to the reset 164 * register. 165 */ 166 Status = AcpiOsWritePort ((ACPI_IO_ADDRESS) ResetReg->Address, 167 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 168 } 169 else 170 { 171 /* Write the reset value to the reset register */ 172 173 Status = AcpiHwWrite (AcpiGbl_FADT.ResetValue, ResetReg); 174 } 175 176 return_ACPI_STATUS (Status); 177 } 178 179 ACPI_EXPORT_SYMBOL (AcpiReset) 180 181 182 /****************************************************************************** 183 * 184 * FUNCTION: AcpiRead 185 * 186 * PARAMETERS: Value - Where the value is returned 187 * Reg - GAS register structure 188 * 189 * RETURN: Status 190 * 191 * DESCRIPTION: Read from either memory or IO space. 192 * 193 * LIMITATIONS: <These limitations also apply to AcpiWrite> 194 * BitWidth must be exactly 8, 16, 32, or 64. 195 * SpaceID must be SystemMemory or SystemIO. 196 * BitOffset and AccessWidth are currently ignored, as there has 197 * not been a need to implement these. 198 * 199 ******************************************************************************/ 200 201 ACPI_STATUS 202 AcpiRead ( 203 UINT64 *ReturnValue, 204 ACPI_GENERIC_ADDRESS *Reg) 205 { 206 UINT32 Value; 207 UINT32 Width; 208 UINT64 Address; 209 ACPI_STATUS Status; 210 211 212 ACPI_FUNCTION_NAME (AcpiRead); 213 214 215 if (!ReturnValue) 216 { 217 return (AE_BAD_PARAMETER); 218 } 219 220 /* Validate contents of the GAS register. Allow 64-bit transfers */ 221 222 Status = AcpiHwValidateRegister (Reg, 64, &Address); 223 if (ACPI_FAILURE (Status)) 224 { 225 return (Status); 226 } 227 228 /* Initialize entire 64-bit return value to zero */ 229 230 *ReturnValue = 0; 231 Value = 0; 232 233 /* 234 * Two address spaces supported: Memory or IO. PCI_Config is 235 * not supported here because the GAS structure is insufficient 236 */ 237 if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY) 238 { 239 Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS) 240 Address, ReturnValue, Reg->BitWidth); 241 if (ACPI_FAILURE (Status)) 242 { 243 return (Status); 244 } 245 } 246 else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ 247 { 248 Width = Reg->BitWidth; 249 if (Width == 64) 250 { 251 Width = 32; /* Break into two 32-bit transfers */ 252 } 253 254 Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) 255 Address, &Value, Width); 256 if (ACPI_FAILURE (Status)) 257 { 258 return (Status); 259 } 260 *ReturnValue = Value; 261 262 if (Reg->BitWidth == 64) 263 { 264 /* Read the top 32 bits */ 265 266 Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) 267 (Address + 4), &Value, 32); 268 if (ACPI_FAILURE (Status)) 269 { 270 return (Status); 271 } 272 *ReturnValue |= ((UINT64) Value << 32); 273 } 274 } 275 276 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 277 "Read: %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n", 278 ACPI_FORMAT_UINT64 (*ReturnValue), Reg->BitWidth, 279 ACPI_FORMAT_UINT64 (Address), 280 AcpiUtGetRegionName (Reg->SpaceId))); 281 282 return (Status); 283 } 284 285 ACPI_EXPORT_SYMBOL (AcpiRead) 286 287 288 /****************************************************************************** 289 * 290 * FUNCTION: AcpiWrite 291 * 292 * PARAMETERS: Value - Value to be written 293 * Reg - GAS register structure 294 * 295 * RETURN: Status 296 * 297 * DESCRIPTION: Write to either memory or IO space. 298 * 299 ******************************************************************************/ 300 301 ACPI_STATUS 302 AcpiWrite ( 303 UINT64 Value, 304 ACPI_GENERIC_ADDRESS *Reg) 305 { 306 UINT32 Width; 307 UINT64 Address; 308 ACPI_STATUS Status; 309 310 311 ACPI_FUNCTION_NAME (AcpiWrite); 312 313 314 /* Validate contents of the GAS register. Allow 64-bit transfers */ 315 316 Status = AcpiHwValidateRegister (Reg, 64, &Address); 317 if (ACPI_FAILURE (Status)) 318 { 319 return (Status); 320 } 321 322 /* 323 * Two address spaces supported: Memory or IO. PCI_Config is 324 * not supported here because the GAS structure is insufficient 325 */ 326 if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY) 327 { 328 Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS) 329 Address, Value, Reg->BitWidth); 330 if (ACPI_FAILURE (Status)) 331 { 332 return (Status); 333 } 334 } 335 else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ 336 { 337 Width = Reg->BitWidth; 338 if (Width == 64) 339 { 340 Width = 32; /* Break into two 32-bit transfers */ 341 } 342 343 Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) 344 Address, ACPI_LODWORD (Value), Width); 345 if (ACPI_FAILURE (Status)) 346 { 347 return (Status); 348 } 349 350 if (Reg->BitWidth == 64) 351 { 352 Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) 353 (Address + 4), ACPI_HIDWORD (Value), 32); 354 if (ACPI_FAILURE (Status)) 355 { 356 return (Status); 357 } 358 } 359 } 360 361 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 362 "Wrote: %8.8X%8.8X width %2d to %8.8X%8.8X (%s)\n", 363 ACPI_FORMAT_UINT64 (Value), Reg->BitWidth, 364 ACPI_FORMAT_UINT64 (Address), 365 AcpiUtGetRegionName (Reg->SpaceId))); 366 367 return (Status); 368 } 369 370 ACPI_EXPORT_SYMBOL (AcpiWrite) 371 372 373 #if (!ACPI_REDUCED_HARDWARE) 374 /******************************************************************************* 375 * 376 * FUNCTION: AcpiReadBitRegister 377 * 378 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 379 * ReturnValue - Value that was read from the register, 380 * normalized to bit position zero. 381 * 382 * RETURN: Status and the value read from the specified Register. Value 383 * returned is normalized to bit0 (is shifted all the way right) 384 * 385 * DESCRIPTION: ACPI BitRegister read function. Does not acquire the HW lock. 386 * 387 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 388 * PM2 Control. 389 * 390 * Note: The hardware lock is not required when reading the ACPI bit registers 391 * since almost all of them are single bit and it does not matter that 392 * the parent hardware register can be split across two physical 393 * registers. The only multi-bit field is SLP_TYP in the PM1 control 394 * register, but this field does not cross an 8-bit boundary (nor does 395 * it make much sense to actually read this field.) 396 * 397 ******************************************************************************/ 398 399 ACPI_STATUS 400 AcpiReadBitRegister ( 401 UINT32 RegisterId, 402 UINT32 *ReturnValue) 403 { 404 ACPI_BIT_REGISTER_INFO *BitRegInfo; 405 UINT32 RegisterValue; 406 UINT32 Value; 407 ACPI_STATUS Status; 408 409 410 ACPI_FUNCTION_TRACE_U32 (AcpiReadBitRegister, RegisterId); 411 412 413 /* Get the info structure corresponding to the requested ACPI Register */ 414 415 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 416 if (!BitRegInfo) 417 { 418 return_ACPI_STATUS (AE_BAD_PARAMETER); 419 } 420 421 /* Read the entire parent register */ 422 423 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 424 &RegisterValue); 425 if (ACPI_FAILURE (Status)) 426 { 427 return_ACPI_STATUS (Status); 428 } 429 430 /* Normalize the value that was read, mask off other bits */ 431 432 Value = ((RegisterValue & BitRegInfo->AccessBitMask) 433 >> BitRegInfo->BitPosition); 434 435 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 436 "BitReg %X, ParentReg %X, Actual %8.8X, ReturnValue %8.8X\n", 437 RegisterId, BitRegInfo->ParentRegister, RegisterValue, Value)); 438 439 *ReturnValue = Value; 440 return_ACPI_STATUS (AE_OK); 441 } 442 443 ACPI_EXPORT_SYMBOL (AcpiReadBitRegister) 444 445 446 /******************************************************************************* 447 * 448 * FUNCTION: AcpiWriteBitRegister 449 * 450 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 451 * Value - Value to write to the register, in bit 452 * position zero. The bit is automaticallly 453 * shifted to the correct position. 454 * 455 * RETURN: Status 456 * 457 * DESCRIPTION: ACPI Bit Register write function. Acquires the hardware lock 458 * since most operations require a read/modify/write sequence. 459 * 460 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 461 * PM2 Control. 462 * 463 * Note that at this level, the fact that there may be actually two 464 * hardware registers (A and B - and B may not exist) is abstracted. 465 * 466 ******************************************************************************/ 467 468 ACPI_STATUS 469 AcpiWriteBitRegister ( 470 UINT32 RegisterId, 471 UINT32 Value) 472 { 473 ACPI_BIT_REGISTER_INFO *BitRegInfo; 474 ACPI_CPU_FLAGS LockFlags; 475 UINT32 RegisterValue; 476 ACPI_STATUS Status = AE_OK; 477 478 479 ACPI_FUNCTION_TRACE_U32 (AcpiWriteBitRegister, RegisterId); 480 481 482 /* Get the info structure corresponding to the requested ACPI Register */ 483 484 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 485 if (!BitRegInfo) 486 { 487 return_ACPI_STATUS (AE_BAD_PARAMETER); 488 } 489 490 LockFlags = AcpiOsAcquireLock (AcpiGbl_HardwareLock); 491 492 /* 493 * At this point, we know that the parent register is one of the 494 * following: PM1 Status, PM1 Enable, PM1 Control, or PM2 Control 495 */ 496 if (BitRegInfo->ParentRegister != ACPI_REGISTER_PM1_STATUS) 497 { 498 /* 499 * 1) Case for PM1 Enable, PM1 Control, and PM2 Control 500 * 501 * Perform a register read to preserve the bits that we are not 502 * interested in 503 */ 504 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 505 &RegisterValue); 506 if (ACPI_FAILURE (Status)) 507 { 508 goto UnlockAndExit; 509 } 510 511 /* 512 * Insert the input bit into the value that was just read 513 * and write the register 514 */ 515 ACPI_REGISTER_INSERT_VALUE (RegisterValue, BitRegInfo->BitPosition, 516 BitRegInfo->AccessBitMask, Value); 517 518 Status = AcpiHwRegisterWrite (BitRegInfo->ParentRegister, 519 RegisterValue); 520 } 521 else 522 { 523 /* 524 * 2) Case for PM1 Status 525 * 526 * The Status register is different from the rest. Clear an event 527 * by writing 1, writing 0 has no effect. So, the only relevant 528 * information is the single bit we're interested in, all others 529 * should be written as 0 so they will be left unchanged. 530 */ 531 RegisterValue = ACPI_REGISTER_PREPARE_BITS (Value, 532 BitRegInfo->BitPosition, BitRegInfo->AccessBitMask); 533 534 /* No need to write the register if value is all zeros */ 535 536 if (RegisterValue) 537 { 538 Status = AcpiHwRegisterWrite (ACPI_REGISTER_PM1_STATUS, 539 RegisterValue); 540 } 541 } 542 543 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 544 "BitReg %X, ParentReg %X, Value %8.8X, Actual %8.8X\n", 545 RegisterId, BitRegInfo->ParentRegister, Value, RegisterValue)); 546 547 548 UnlockAndExit: 549 550 AcpiOsReleaseLock (AcpiGbl_HardwareLock, LockFlags); 551 return_ACPI_STATUS (Status); 552 } 553 554 ACPI_EXPORT_SYMBOL (AcpiWriteBitRegister) 555 556 #endif /* !ACPI_REDUCED_HARDWARE */ 557 558 559 /******************************************************************************* 560 * 561 * FUNCTION: AcpiGetSleepTypeData 562 * 563 * PARAMETERS: SleepState - Numeric sleep state 564 * *SleepTypeA - Where SLP_TYPa is returned 565 * *SleepTypeB - Where SLP_TYPb is returned 566 * 567 * RETURN: Status - ACPI status 568 * 569 * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep 570 * state. 571 * 572 ******************************************************************************/ 573 574 ACPI_STATUS 575 AcpiGetSleepTypeData ( 576 UINT8 SleepState, 577 UINT8 *SleepTypeA, 578 UINT8 *SleepTypeB) 579 { 580 ACPI_STATUS Status = AE_OK; 581 ACPI_EVALUATE_INFO *Info; 582 583 584 ACPI_FUNCTION_TRACE (AcpiGetSleepTypeData); 585 586 587 /* Validate parameters */ 588 589 if ((SleepState > ACPI_S_STATES_MAX) || 590 !SleepTypeA || 591 !SleepTypeB) 592 { 593 return_ACPI_STATUS (AE_BAD_PARAMETER); 594 } 595 596 /* Allocate the evaluation information block */ 597 598 Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); 599 if (!Info) 600 { 601 return_ACPI_STATUS (AE_NO_MEMORY); 602 } 603 604 Info->Pathname = ACPI_CAST_PTR (char, AcpiGbl_SleepStateNames[SleepState]); 605 606 /* Evaluate the namespace object containing the values for this state */ 607 608 Status = AcpiNsEvaluate (Info); 609 if (ACPI_FAILURE (Status)) 610 { 611 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 612 "%s while evaluating SleepState [%s]\n", 613 AcpiFormatException (Status), Info->Pathname)); 614 615 goto Cleanup; 616 } 617 618 /* Must have a return object */ 619 620 if (!Info->ReturnObject) 621 { 622 ACPI_ERROR ((AE_INFO, "No Sleep State object returned from [%s]", 623 Info->Pathname)); 624 Status = AE_NOT_EXIST; 625 } 626 627 /* It must be of type Package */ 628 629 else if (Info->ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) 630 { 631 ACPI_ERROR ((AE_INFO, "Sleep State return object is not a Package")); 632 Status = AE_AML_OPERAND_TYPE; 633 } 634 635 /* 636 * The package must have at least two elements. NOTE (March 2005): This 637 * goes against the current ACPI spec which defines this object as a 638 * package with one encoded DWORD element. However, existing practice 639 * by BIOS vendors seems to be to have 2 or more elements, at least 640 * one per sleep type (A/B). 641 */ 642 else if (Info->ReturnObject->Package.Count < 2) 643 { 644 ACPI_ERROR ((AE_INFO, 645 "Sleep State return package does not have at least two elements")); 646 Status = AE_AML_NO_OPERAND; 647 } 648 649 /* The first two elements must both be of type Integer */ 650 651 else if (((Info->ReturnObject->Package.Elements[0])->Common.Type 652 != ACPI_TYPE_INTEGER) || 653 ((Info->ReturnObject->Package.Elements[1])->Common.Type 654 != ACPI_TYPE_INTEGER)) 655 { 656 ACPI_ERROR ((AE_INFO, 657 "Sleep State return package elements are not both Integers " 658 "(%s, %s)", 659 AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[0]), 660 AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[1]))); 661 Status = AE_AML_OPERAND_TYPE; 662 } 663 else 664 { 665 /* Valid _Sx_ package size, type, and value */ 666 667 *SleepTypeA = (UINT8) 668 (Info->ReturnObject->Package.Elements[0])->Integer.Value; 669 *SleepTypeB = (UINT8) 670 (Info->ReturnObject->Package.Elements[1])->Integer.Value; 671 } 672 673 if (ACPI_FAILURE (Status)) 674 { 675 ACPI_EXCEPTION ((AE_INFO, Status, 676 "While evaluating SleepState [%s], bad Sleep object %p type %s", 677 Info->Pathname, Info->ReturnObject, 678 AcpiUtGetObjectTypeName (Info->ReturnObject))); 679 } 680 681 AcpiUtRemoveReference (Info->ReturnObject); 682 683 Cleanup: 684 ACPI_FREE (Info); 685 return_ACPI_STATUS (Status); 686 } 687 688 ACPI_EXPORT_SYMBOL (AcpiGetSleepTypeData) 689