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 - 2009, 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 Width = Reg->BitWidth; 230 if (Width == 64) 231 { 232 Width = 32; /* Break into two 32-bit transfers */ 233 } 234 235 /* Initialize entire 64-bit return value to zero */ 236 237 *ReturnValue = 0; 238 Value = 0; 239 240 /* 241 * Two address spaces supported: Memory or IO. PCI_Config is 242 * not supported here because the GAS structure is insufficient 243 */ 244 if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY) 245 { 246 Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS) 247 Address, &Value, Width); 248 if (ACPI_FAILURE (Status)) 249 { 250 return (Status); 251 } 252 *ReturnValue = Value; 253 254 if (Reg->BitWidth == 64) 255 { 256 /* Read the top 32 bits */ 257 258 Status = AcpiOsReadMemory ((ACPI_PHYSICAL_ADDRESS) 259 (Address + 4), &Value, 32); 260 if (ACPI_FAILURE (Status)) 261 { 262 return (Status); 263 } 264 *ReturnValue |= ((UINT64) Value << 32); 265 } 266 } 267 else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ 268 { 269 Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) 270 Address, &Value, Width); 271 if (ACPI_FAILURE (Status)) 272 { 273 return (Status); 274 } 275 *ReturnValue = Value; 276 277 if (Reg->BitWidth == 64) 278 { 279 /* Read the top 32 bits */ 280 281 Status = AcpiHwReadPort ((ACPI_IO_ADDRESS) 282 (Address + 4), &Value, 32); 283 if (ACPI_FAILURE (Status)) 284 { 285 return (Status); 286 } 287 *ReturnValue |= ((UINT64) Value << 32); 288 } 289 } 290 291 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 292 "Read: %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n", 293 ACPI_FORMAT_UINT64 (*ReturnValue), Reg->BitWidth, 294 ACPI_FORMAT_UINT64 (Address), 295 AcpiUtGetRegionName (Reg->SpaceId))); 296 297 return (Status); 298 } 299 300 ACPI_EXPORT_SYMBOL (AcpiRead) 301 302 303 /****************************************************************************** 304 * 305 * FUNCTION: AcpiWrite 306 * 307 * PARAMETERS: Value - Value to be written 308 * Reg - GAS register structure 309 * 310 * RETURN: Status 311 * 312 * DESCRIPTION: Write to either memory or IO space. 313 * 314 ******************************************************************************/ 315 316 ACPI_STATUS 317 AcpiWrite ( 318 UINT64 Value, 319 ACPI_GENERIC_ADDRESS *Reg) 320 { 321 UINT32 Width; 322 UINT64 Address; 323 ACPI_STATUS Status; 324 325 326 ACPI_FUNCTION_NAME (AcpiWrite); 327 328 329 /* Validate contents of the GAS register. Allow 64-bit transfers */ 330 331 Status = AcpiHwValidateRegister (Reg, 64, &Address); 332 if (ACPI_FAILURE (Status)) 333 { 334 return (Status); 335 } 336 337 Width = Reg->BitWidth; 338 if (Width == 64) 339 { 340 Width = 32; /* Break into two 32-bit transfers */ 341 } 342 343 /* 344 * Two address spaces supported: Memory or IO. PCI_Config is 345 * not supported here because the GAS structure is insufficient 346 */ 347 if (Reg->SpaceId == ACPI_ADR_SPACE_SYSTEM_MEMORY) 348 { 349 Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS) 350 Address, ACPI_LODWORD (Value), Width); 351 if (ACPI_FAILURE (Status)) 352 { 353 return (Status); 354 } 355 356 if (Reg->BitWidth == 64) 357 { 358 Status = AcpiOsWriteMemory ((ACPI_PHYSICAL_ADDRESS) 359 (Address + 4), ACPI_HIDWORD (Value), 32); 360 if (ACPI_FAILURE (Status)) 361 { 362 return (Status); 363 } 364 } 365 } 366 else /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ 367 { 368 Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) 369 Address, ACPI_LODWORD (Value), Width); 370 if (ACPI_FAILURE (Status)) 371 { 372 return (Status); 373 } 374 375 if (Reg->BitWidth == 64) 376 { 377 Status = AcpiHwWritePort ((ACPI_IO_ADDRESS) 378 (Address + 4), ACPI_HIDWORD (Value), 32); 379 if (ACPI_FAILURE (Status)) 380 { 381 return (Status); 382 } 383 } 384 } 385 386 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 387 "Wrote: %8.8X%8.8X width %2d to %8.8X%8.8X (%s)\n", 388 ACPI_FORMAT_UINT64 (Value), Reg->BitWidth, 389 ACPI_FORMAT_UINT64 (Address), 390 AcpiUtGetRegionName (Reg->SpaceId))); 391 392 return (Status); 393 } 394 395 ACPI_EXPORT_SYMBOL (AcpiWrite) 396 397 398 /******************************************************************************* 399 * 400 * FUNCTION: AcpiReadBitRegister 401 * 402 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 403 * ReturnValue - Value that was read from the register, 404 * normalized to bit position zero. 405 * 406 * RETURN: Status and the value read from the specified Register. Value 407 * returned is normalized to bit0 (is shifted all the way right) 408 * 409 * DESCRIPTION: ACPI BitRegister read function. Does not acquire the HW lock. 410 * 411 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 412 * PM2 Control. 413 * 414 * Note: The hardware lock is not required when reading the ACPI bit registers 415 * since almost all of them are single bit and it does not matter that 416 * the parent hardware register can be split across two physical 417 * registers. The only multi-bit field is SLP_TYP in the PM1 control 418 * register, but this field does not cross an 8-bit boundary (nor does 419 * it make much sense to actually read this field.) 420 * 421 ******************************************************************************/ 422 423 ACPI_STATUS 424 AcpiReadBitRegister ( 425 UINT32 RegisterId, 426 UINT32 *ReturnValue) 427 { 428 ACPI_BIT_REGISTER_INFO *BitRegInfo; 429 UINT32 RegisterValue; 430 UINT32 Value; 431 ACPI_STATUS Status; 432 433 434 ACPI_FUNCTION_TRACE_U32 (AcpiReadBitRegister, RegisterId); 435 436 437 /* Get the info structure corresponding to the requested ACPI Register */ 438 439 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 440 if (!BitRegInfo) 441 { 442 return_ACPI_STATUS (AE_BAD_PARAMETER); 443 } 444 445 /* Read the entire parent register */ 446 447 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 448 &RegisterValue); 449 if (ACPI_FAILURE (Status)) 450 { 451 return_ACPI_STATUS (Status); 452 } 453 454 /* Normalize the value that was read, mask off other bits */ 455 456 Value = ((RegisterValue & BitRegInfo->AccessBitMask) 457 >> BitRegInfo->BitPosition); 458 459 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 460 "BitReg %X, ParentReg %X, Actual %8.8X, ReturnValue %8.8X\n", 461 RegisterId, BitRegInfo->ParentRegister, RegisterValue, Value)); 462 463 *ReturnValue = Value; 464 return_ACPI_STATUS (AE_OK); 465 } 466 467 ACPI_EXPORT_SYMBOL (AcpiReadBitRegister) 468 469 470 /******************************************************************************* 471 * 472 * FUNCTION: AcpiWriteBitRegister 473 * 474 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 475 * Value - Value to write to the register, in bit 476 * position zero. The bit is automaticallly 477 * shifted to the correct position. 478 * 479 * RETURN: Status 480 * 481 * DESCRIPTION: ACPI Bit Register write function. Acquires the hardware lock 482 * since most operations require a read/modify/write sequence. 483 * 484 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 485 * PM2 Control. 486 * 487 * Note that at this level, the fact that there may be actually two 488 * hardware registers (A and B - and B may not exist) is abstracted. 489 * 490 ******************************************************************************/ 491 492 ACPI_STATUS 493 AcpiWriteBitRegister ( 494 UINT32 RegisterId, 495 UINT32 Value) 496 { 497 ACPI_BIT_REGISTER_INFO *BitRegInfo; 498 ACPI_CPU_FLAGS LockFlags; 499 UINT32 RegisterValue; 500 ACPI_STATUS Status = AE_OK; 501 502 503 ACPI_FUNCTION_TRACE_U32 (AcpiWriteBitRegister, RegisterId); 504 505 506 /* Get the info structure corresponding to the requested ACPI Register */ 507 508 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 509 if (!BitRegInfo) 510 { 511 return_ACPI_STATUS (AE_BAD_PARAMETER); 512 } 513 514 LockFlags = AcpiOsAcquireLock (AcpiGbl_HardwareLock); 515 516 /* 517 * At this point, we know that the parent register is one of the 518 * following: PM1 Status, PM1 Enable, PM1 Control, or PM2 Control 519 */ 520 if (BitRegInfo->ParentRegister != ACPI_REGISTER_PM1_STATUS) 521 { 522 /* 523 * 1) Case for PM1 Enable, PM1 Control, and PM2 Control 524 * 525 * Perform a register read to preserve the bits that we are not 526 * interested in 527 */ 528 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 529 &RegisterValue); 530 if (ACPI_FAILURE (Status)) 531 { 532 goto UnlockAndExit; 533 } 534 535 /* 536 * Insert the input bit into the value that was just read 537 * and write the register 538 */ 539 ACPI_REGISTER_INSERT_VALUE (RegisterValue, BitRegInfo->BitPosition, 540 BitRegInfo->AccessBitMask, Value); 541 542 Status = AcpiHwRegisterWrite (BitRegInfo->ParentRegister, 543 RegisterValue); 544 } 545 else 546 { 547 /* 548 * 2) Case for PM1 Status 549 * 550 * The Status register is different from the rest. Clear an event 551 * by writing 1, writing 0 has no effect. So, the only relevant 552 * information is the single bit we're interested in, all others 553 * should be written as 0 so they will be left unchanged. 554 */ 555 RegisterValue = ACPI_REGISTER_PREPARE_BITS (Value, 556 BitRegInfo->BitPosition, BitRegInfo->AccessBitMask); 557 558 /* No need to write the register if value is all zeros */ 559 560 if (RegisterValue) 561 { 562 Status = AcpiHwRegisterWrite (ACPI_REGISTER_PM1_STATUS, 563 RegisterValue); 564 } 565 } 566 567 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 568 "BitReg %X, ParentReg %X, Value %8.8X, Actual %8.8X\n", 569 RegisterId, BitRegInfo->ParentRegister, Value, RegisterValue)); 570 571 572 UnlockAndExit: 573 574 AcpiOsReleaseLock (AcpiGbl_HardwareLock, LockFlags); 575 return_ACPI_STATUS (Status); 576 } 577 578 ACPI_EXPORT_SYMBOL (AcpiWriteBitRegister) 579 580 581 /******************************************************************************* 582 * 583 * FUNCTION: AcpiGetSleepTypeData 584 * 585 * PARAMETERS: SleepState - Numeric sleep state 586 * *SleepTypeA - Where SLP_TYPa is returned 587 * *SleepTypeB - Where SLP_TYPb is returned 588 * 589 * RETURN: Status - ACPI status 590 * 591 * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested sleep 592 * state. 593 * 594 ******************************************************************************/ 595 596 ACPI_STATUS 597 AcpiGetSleepTypeData ( 598 UINT8 SleepState, 599 UINT8 *SleepTypeA, 600 UINT8 *SleepTypeB) 601 { 602 ACPI_STATUS Status = AE_OK; 603 ACPI_EVALUATE_INFO *Info; 604 605 606 ACPI_FUNCTION_TRACE (AcpiGetSleepTypeData); 607 608 609 /* Validate parameters */ 610 611 if ((SleepState > ACPI_S_STATES_MAX) || 612 !SleepTypeA || 613 !SleepTypeB) 614 { 615 return_ACPI_STATUS (AE_BAD_PARAMETER); 616 } 617 618 /* Allocate the evaluation information block */ 619 620 Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); 621 if (!Info) 622 { 623 return_ACPI_STATUS (AE_NO_MEMORY); 624 } 625 626 Info->Pathname = ACPI_CAST_PTR (char, AcpiGbl_SleepStateNames[SleepState]); 627 628 /* Evaluate the namespace object containing the values for this state */ 629 630 Status = AcpiNsEvaluate (Info); 631 if (ACPI_FAILURE (Status)) 632 { 633 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 634 "%s while evaluating SleepState [%s]\n", 635 AcpiFormatException (Status), Info->Pathname)); 636 637 goto Cleanup; 638 } 639 640 /* Must have a return object */ 641 642 if (!Info->ReturnObject) 643 { 644 ACPI_ERROR ((AE_INFO, "No Sleep State object returned from [%s]", 645 Info->Pathname)); 646 Status = AE_NOT_EXIST; 647 } 648 649 /* It must be of type Package */ 650 651 else if (Info->ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) 652 { 653 ACPI_ERROR ((AE_INFO, "Sleep State return object is not a Package")); 654 Status = AE_AML_OPERAND_TYPE; 655 } 656 657 /* 658 * The package must have at least two elements. NOTE (March 2005): This 659 * goes against the current ACPI spec which defines this object as a 660 * package with one encoded DWORD element. However, existing practice 661 * by BIOS vendors seems to be to have 2 or more elements, at least 662 * one per sleep type (A/B). 663 */ 664 else if (Info->ReturnObject->Package.Count < 2) 665 { 666 ACPI_ERROR ((AE_INFO, 667 "Sleep State return package does not have at least two elements")); 668 Status = AE_AML_NO_OPERAND; 669 } 670 671 /* The first two elements must both be of type Integer */ 672 673 else if (((Info->ReturnObject->Package.Elements[0])->Common.Type 674 != ACPI_TYPE_INTEGER) || 675 ((Info->ReturnObject->Package.Elements[1])->Common.Type 676 != ACPI_TYPE_INTEGER)) 677 { 678 ACPI_ERROR ((AE_INFO, 679 "Sleep State return package elements are not both Integers " 680 "(%s, %s)", 681 AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[0]), 682 AcpiUtGetObjectTypeName (Info->ReturnObject->Package.Elements[1]))); 683 Status = AE_AML_OPERAND_TYPE; 684 } 685 else 686 { 687 /* Valid _Sx_ package size, type, and value */ 688 689 *SleepTypeA = (UINT8) 690 (Info->ReturnObject->Package.Elements[0])->Integer.Value; 691 *SleepTypeB = (UINT8) 692 (Info->ReturnObject->Package.Elements[1])->Integer.Value; 693 } 694 695 if (ACPI_FAILURE (Status)) 696 { 697 ACPI_EXCEPTION ((AE_INFO, Status, 698 "While evaluating SleepState [%s], bad Sleep object %p type %s", 699 Info->Pathname, Info->ReturnObject, 700 AcpiUtGetObjectTypeName (Info->ReturnObject))); 701 } 702 703 AcpiUtRemoveReference (Info->ReturnObject); 704 705 Cleanup: 706 ACPI_FREE (Info); 707 return_ACPI_STATUS (Status); 708 } 709 710 ACPI_EXPORT_SYMBOL (AcpiGetSleepTypeData) 711