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 - 2018, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #define EXPORT_ACPI_INTERFACES 153 154 #include <contrib/dev/acpica/include/acpi.h> 155 #include <contrib/dev/acpica/include/accommon.h> 156 #include <contrib/dev/acpica/include/acnamesp.h> 157 158 #define _COMPONENT ACPI_HARDWARE 159 ACPI_MODULE_NAME ("hwxface") 160 161 162 /****************************************************************************** 163 * 164 * FUNCTION: AcpiReset 165 * 166 * PARAMETERS: None 167 * 168 * RETURN: Status 169 * 170 * DESCRIPTION: Set reset register in memory or IO space. Note: Does not 171 * support reset register in PCI config space, this must be 172 * handled separately. 173 * 174 ******************************************************************************/ 175 176 ACPI_STATUS 177 AcpiReset ( 178 void) 179 { 180 ACPI_GENERIC_ADDRESS *ResetReg; 181 ACPI_STATUS Status; 182 183 184 ACPI_FUNCTION_TRACE (AcpiReset); 185 186 187 ResetReg = &AcpiGbl_FADT.ResetRegister; 188 189 /* Check if the reset register is supported */ 190 191 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 192 !ResetReg->Address) 193 { 194 return_ACPI_STATUS (AE_NOT_EXIST); 195 } 196 197 if (ResetReg->SpaceId == ACPI_ADR_SPACE_SYSTEM_IO) 198 { 199 /* 200 * For I/O space, write directly to the OSL. This bypasses the port 201 * validation mechanism, which may block a valid write to the reset 202 * register. 203 * 204 * NOTE: 205 * The ACPI spec requires the reset register width to be 8, so we 206 * hardcode it here and ignore the FADT value. This maintains 207 * compatibility with other ACPI implementations that have allowed 208 * BIOS code with bad register width values to go unnoticed. 209 */ 210 Status = AcpiOsWritePort ((ACPI_IO_ADDRESS) ResetReg->Address, 211 AcpiGbl_FADT.ResetValue, ACPI_RESET_REGISTER_WIDTH); 212 } 213 else 214 { 215 /* Write the reset value to the reset register */ 216 217 Status = AcpiHwWrite (AcpiGbl_FADT.ResetValue, ResetReg); 218 } 219 220 return_ACPI_STATUS (Status); 221 } 222 223 ACPI_EXPORT_SYMBOL (AcpiReset) 224 225 226 /****************************************************************************** 227 * 228 * FUNCTION: AcpiRead 229 * 230 * PARAMETERS: Value - Where the value is returned 231 * Reg - GAS register structure 232 * 233 * RETURN: Status 234 * 235 * DESCRIPTION: Read from either memory or IO space. 236 * 237 * LIMITATIONS: <These limitations also apply to AcpiWrite> 238 * BitWidth must be exactly 8, 16, 32, or 64. 239 * SpaceID must be SystemMemory or SystemIO. 240 * BitOffset and AccessWidth are currently ignored, as there has 241 * not been a need to implement these. 242 * 243 ******************************************************************************/ 244 245 ACPI_STATUS 246 AcpiRead ( 247 UINT64 *ReturnValue, 248 ACPI_GENERIC_ADDRESS *Reg) 249 { 250 ACPI_STATUS Status; 251 252 253 ACPI_FUNCTION_NAME (AcpiRead); 254 255 256 Status = AcpiHwRead (ReturnValue, Reg); 257 return (Status); 258 } 259 260 ACPI_EXPORT_SYMBOL (AcpiRead) 261 262 263 /****************************************************************************** 264 * 265 * FUNCTION: AcpiWrite 266 * 267 * PARAMETERS: Value - Value to be written 268 * Reg - GAS register structure 269 * 270 * RETURN: Status 271 * 272 * DESCRIPTION: Write to either memory or IO space. 273 * 274 ******************************************************************************/ 275 276 ACPI_STATUS 277 AcpiWrite ( 278 UINT64 Value, 279 ACPI_GENERIC_ADDRESS *Reg) 280 { 281 ACPI_STATUS Status; 282 283 284 ACPI_FUNCTION_NAME (AcpiWrite); 285 286 287 Status = AcpiHwWrite (Value, Reg); 288 return (Status); 289 } 290 291 ACPI_EXPORT_SYMBOL (AcpiWrite) 292 293 294 #if (!ACPI_REDUCED_HARDWARE) 295 /******************************************************************************* 296 * 297 * FUNCTION: AcpiReadBitRegister 298 * 299 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 300 * ReturnValue - Value that was read from the register, 301 * normalized to bit position zero. 302 * 303 * RETURN: Status and the value read from the specified Register. Value 304 * returned is normalized to bit0 (is shifted all the way right) 305 * 306 * DESCRIPTION: ACPI BitRegister read function. Does not acquire the HW lock. 307 * 308 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 309 * PM2 Control. 310 * 311 * Note: The hardware lock is not required when reading the ACPI bit registers 312 * since almost all of them are single bit and it does not matter that 313 * the parent hardware register can be split across two physical 314 * registers. The only multi-bit field is SLP_TYP in the PM1 control 315 * register, but this field does not cross an 8-bit boundary (nor does 316 * it make much sense to actually read this field.) 317 * 318 ******************************************************************************/ 319 320 ACPI_STATUS 321 AcpiReadBitRegister ( 322 UINT32 RegisterId, 323 UINT32 *ReturnValue) 324 { 325 ACPI_BIT_REGISTER_INFO *BitRegInfo; 326 UINT32 RegisterValue; 327 UINT32 Value; 328 ACPI_STATUS Status; 329 330 331 ACPI_FUNCTION_TRACE_U32 (AcpiReadBitRegister, RegisterId); 332 333 334 /* Get the info structure corresponding to the requested ACPI Register */ 335 336 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 337 if (!BitRegInfo) 338 { 339 return_ACPI_STATUS (AE_BAD_PARAMETER); 340 } 341 342 /* Read the entire parent register */ 343 344 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 345 &RegisterValue); 346 if (ACPI_FAILURE (Status)) 347 { 348 return_ACPI_STATUS (Status); 349 } 350 351 /* Normalize the value that was read, mask off other bits */ 352 353 Value = ((RegisterValue & BitRegInfo->AccessBitMask) 354 >> BitRegInfo->BitPosition); 355 356 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 357 "BitReg %X, ParentReg %X, Actual %8.8X, ReturnValue %8.8X\n", 358 RegisterId, BitRegInfo->ParentRegister, RegisterValue, Value)); 359 360 *ReturnValue = Value; 361 return_ACPI_STATUS (AE_OK); 362 } 363 364 ACPI_EXPORT_SYMBOL (AcpiReadBitRegister) 365 366 367 /******************************************************************************* 368 * 369 * FUNCTION: AcpiWriteBitRegister 370 * 371 * PARAMETERS: RegisterId - ID of ACPI Bit Register to access 372 * Value - Value to write to the register, in bit 373 * position zero. The bit is automatically 374 * shifted to the correct position. 375 * 376 * RETURN: Status 377 * 378 * DESCRIPTION: ACPI Bit Register write function. Acquires the hardware lock 379 * since most operations require a read/modify/write sequence. 380 * 381 * SUPPORTS: Bit fields in PM1 Status, PM1 Enable, PM1 Control, and 382 * PM2 Control. 383 * 384 * Note that at this level, the fact that there may be actually two 385 * hardware registers (A and B - and B may not exist) is abstracted. 386 * 387 ******************************************************************************/ 388 389 ACPI_STATUS 390 AcpiWriteBitRegister ( 391 UINT32 RegisterId, 392 UINT32 Value) 393 { 394 ACPI_BIT_REGISTER_INFO *BitRegInfo; 395 ACPI_CPU_FLAGS LockFlags; 396 UINT32 RegisterValue; 397 ACPI_STATUS Status = AE_OK; 398 399 400 ACPI_FUNCTION_TRACE_U32 (AcpiWriteBitRegister, RegisterId); 401 402 403 /* Get the info structure corresponding to the requested ACPI Register */ 404 405 BitRegInfo = AcpiHwGetBitRegisterInfo (RegisterId); 406 if (!BitRegInfo) 407 { 408 return_ACPI_STATUS (AE_BAD_PARAMETER); 409 } 410 411 LockFlags = AcpiOsAcquireLock (AcpiGbl_HardwareLock); 412 413 /* 414 * At this point, we know that the parent register is one of the 415 * following: PM1 Status, PM1 Enable, PM1 Control, or PM2 Control 416 */ 417 if (BitRegInfo->ParentRegister != ACPI_REGISTER_PM1_STATUS) 418 { 419 /* 420 * 1) Case for PM1 Enable, PM1 Control, and PM2 Control 421 * 422 * Perform a register read to preserve the bits that we are not 423 * interested in 424 */ 425 Status = AcpiHwRegisterRead (BitRegInfo->ParentRegister, 426 &RegisterValue); 427 if (ACPI_FAILURE (Status)) 428 { 429 goto UnlockAndExit; 430 } 431 432 /* 433 * Insert the input bit into the value that was just read 434 * and write the register 435 */ 436 ACPI_REGISTER_INSERT_VALUE (RegisterValue, BitRegInfo->BitPosition, 437 BitRegInfo->AccessBitMask, Value); 438 439 Status = AcpiHwRegisterWrite (BitRegInfo->ParentRegister, 440 RegisterValue); 441 } 442 else 443 { 444 /* 445 * 2) Case for PM1 Status 446 * 447 * The Status register is different from the rest. Clear an event 448 * by writing 1, writing 0 has no effect. So, the only relevant 449 * information is the single bit we're interested in, all others 450 * should be written as 0 so they will be left unchanged. 451 */ 452 RegisterValue = ACPI_REGISTER_PREPARE_BITS (Value, 453 BitRegInfo->BitPosition, BitRegInfo->AccessBitMask); 454 455 /* No need to write the register if value is all zeros */ 456 457 if (RegisterValue) 458 { 459 Status = AcpiHwRegisterWrite (ACPI_REGISTER_PM1_STATUS, 460 RegisterValue); 461 } 462 } 463 464 ACPI_DEBUG_PRINT ((ACPI_DB_IO, 465 "BitReg %X, ParentReg %X, Value %8.8X, Actual %8.8X\n", 466 RegisterId, BitRegInfo->ParentRegister, Value, RegisterValue)); 467 468 469 UnlockAndExit: 470 471 AcpiOsReleaseLock (AcpiGbl_HardwareLock, LockFlags); 472 return_ACPI_STATUS (Status); 473 } 474 475 ACPI_EXPORT_SYMBOL (AcpiWriteBitRegister) 476 477 #endif /* !ACPI_REDUCED_HARDWARE */ 478 479 480 /******************************************************************************* 481 * 482 * FUNCTION: AcpiGetSleepTypeData 483 * 484 * PARAMETERS: SleepState - Numeric sleep state 485 * *SleepTypeA - Where SLP_TYPa is returned 486 * *SleepTypeB - Where SLP_TYPb is returned 487 * 488 * RETURN: Status 489 * 490 * DESCRIPTION: Obtain the SLP_TYPa and SLP_TYPb values for the requested 491 * sleep state via the appropriate \_Sx object. 492 * 493 * The sleep state package returned from the corresponding \_Sx_ object 494 * must contain at least one integer. 495 * 496 * March 2005: 497 * Added support for a package that contains two integers. This 498 * goes against the ACPI specification which defines this object as a 499 * package with one encoded DWORD integer. However, existing practice 500 * by many BIOS vendors is to return a package with 2 or more integer 501 * elements, at least one per sleep type (A/B). 502 * 503 * January 2013: 504 * Therefore, we must be prepared to accept a package with either a 505 * single integer or multiple integers. 506 * 507 * The single integer DWORD format is as follows: 508 * BYTE 0 - Value for the PM1A SLP_TYP register 509 * BYTE 1 - Value for the PM1B SLP_TYP register 510 * BYTE 2-3 - Reserved 511 * 512 * The dual integer format is as follows: 513 * Integer 0 - Value for the PM1A SLP_TYP register 514 * Integer 1 - Value for the PM1A SLP_TYP register 515 * 516 ******************************************************************************/ 517 518 ACPI_STATUS 519 AcpiGetSleepTypeData ( 520 UINT8 SleepState, 521 UINT8 *SleepTypeA, 522 UINT8 *SleepTypeB) 523 { 524 ACPI_STATUS Status; 525 ACPI_EVALUATE_INFO *Info; 526 ACPI_OPERAND_OBJECT **Elements; 527 528 529 ACPI_FUNCTION_TRACE (AcpiGetSleepTypeData); 530 531 532 /* Validate parameters */ 533 534 if ((SleepState > ACPI_S_STATES_MAX) || 535 !SleepTypeA || !SleepTypeB) 536 { 537 return_ACPI_STATUS (AE_BAD_PARAMETER); 538 } 539 540 /* Allocate the evaluation information block */ 541 542 Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); 543 if (!Info) 544 { 545 return_ACPI_STATUS (AE_NO_MEMORY); 546 } 547 548 /* 549 * Evaluate the \_Sx namespace object containing the register values 550 * for this state 551 */ 552 Info->RelativePathname = AcpiGbl_SleepStateNames[SleepState]; 553 554 Status = AcpiNsEvaluate (Info); 555 if (ACPI_FAILURE (Status)) 556 { 557 if (Status == AE_NOT_FOUND) 558 { 559 /* The _Sx states are optional, ignore NOT_FOUND */ 560 561 goto FinalCleanup; 562 } 563 564 goto WarningCleanup; 565 } 566 567 /* Must have a return object */ 568 569 if (!Info->ReturnObject) 570 { 571 ACPI_ERROR ((AE_INFO, "No Sleep State object returned from [%s]", 572 Info->RelativePathname)); 573 Status = AE_AML_NO_RETURN_VALUE; 574 goto WarningCleanup; 575 } 576 577 /* Return object must be of type Package */ 578 579 if (Info->ReturnObject->Common.Type != ACPI_TYPE_PACKAGE) 580 { 581 ACPI_ERROR ((AE_INFO, "Sleep State return object is not a Package")); 582 Status = AE_AML_OPERAND_TYPE; 583 goto ReturnValueCleanup; 584 } 585 586 /* 587 * Any warnings about the package length or the object types have 588 * already been issued by the predefined name module -- there is no 589 * need to repeat them here. 590 */ 591 Elements = Info->ReturnObject->Package.Elements; 592 switch (Info->ReturnObject->Package.Count) 593 { 594 case 0: 595 596 Status = AE_AML_PACKAGE_LIMIT; 597 break; 598 599 case 1: 600 601 if (Elements[0]->Common.Type != ACPI_TYPE_INTEGER) 602 { 603 Status = AE_AML_OPERAND_TYPE; 604 break; 605 } 606 607 /* A valid _Sx_ package with one integer */ 608 609 *SleepTypeA = (UINT8) Elements[0]->Integer.Value; 610 *SleepTypeB = (UINT8) (Elements[0]->Integer.Value >> 8); 611 break; 612 613 case 2: 614 default: 615 616 if ((Elements[0]->Common.Type != ACPI_TYPE_INTEGER) || 617 (Elements[1]->Common.Type != ACPI_TYPE_INTEGER)) 618 { 619 Status = AE_AML_OPERAND_TYPE; 620 break; 621 } 622 623 /* A valid _Sx_ package with two integers */ 624 625 *SleepTypeA = (UINT8) Elements[0]->Integer.Value; 626 *SleepTypeB = (UINT8) Elements[1]->Integer.Value; 627 break; 628 } 629 630 ReturnValueCleanup: 631 AcpiUtRemoveReference (Info->ReturnObject); 632 633 WarningCleanup: 634 if (ACPI_FAILURE (Status)) 635 { 636 ACPI_EXCEPTION ((AE_INFO, Status, 637 "While evaluating Sleep State [%s]", 638 Info->RelativePathname)); 639 } 640 641 FinalCleanup: 642 ACPI_FREE (Info); 643 return_ACPI_STATUS (Status); 644 } 645 646 ACPI_EXPORT_SYMBOL (AcpiGetSleepTypeData) 647