1/******************************************************************************
2 *
3 * Module Name: utxface - External interfaces, miscellaneous utility functions
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 "acpi.h"
155#include "accommon.h"
156#include "acdebug.h"
157
158#define _COMPONENT          ACPI_UTILITIES
159        ACPI_MODULE_NAME    ("utxface")
160
161
162/*******************************************************************************
163 *
164 * FUNCTION:    AcpiTerminate
165 *
166 * PARAMETERS:  None
167 *
168 * RETURN:      Status
169 *
170 * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources.
171 *
172 ******************************************************************************/
173
174ACPI_STATUS ACPI_INIT_FUNCTION
175AcpiTerminate (
176    void)
177{
178    ACPI_STATUS         Status;
179
180
181    ACPI_FUNCTION_TRACE (AcpiTerminate);
182
183
184    /* Shutdown and free all resources */
185
186    AcpiUtSubsystemShutdown ();
187
188    /* Free the mutex objects */
189
190    AcpiUtMutexTerminate ();
191
192    /* Now we can shutdown the OS-dependent layer */
193
194    Status = AcpiOsTerminate ();
195    return_ACPI_STATUS (Status);
196}
197
198ACPI_EXPORT_SYMBOL_INIT (AcpiTerminate)
199
200
201#ifndef ACPI_ASL_COMPILER
202/*******************************************************************************
203 *
204 * FUNCTION:    AcpiSubsystemStatus
205 *
206 * PARAMETERS:  None
207 *
208 * RETURN:      Status of the ACPI subsystem
209 *
210 * DESCRIPTION: Other drivers that use the ACPI subsystem should call this
211 *              before making any other calls, to ensure the subsystem
212 *              initialized successfully.
213 *
214 ******************************************************************************/
215
216ACPI_STATUS
217AcpiSubsystemStatus (
218    void)
219{
220
221    if (AcpiGbl_StartupFlags & ACPI_INITIALIZED_OK)
222    {
223        return (AE_OK);
224    }
225    else
226    {
227        return (AE_ERROR);
228    }
229}
230
231ACPI_EXPORT_SYMBOL (AcpiSubsystemStatus)
232
233
234/*******************************************************************************
235 *
236 * FUNCTION:    AcpiGetSystemInfo
237 *
238 * PARAMETERS:  OutBuffer       - A buffer to receive the resources for the
239 *                                device
240 *
241 * RETURN:      Status          - the status of the call
242 *
243 * DESCRIPTION: This function is called to get information about the current
244 *              state of the ACPI subsystem. It will return system information
245 *              in the OutBuffer.
246 *
247 *              If the function fails an appropriate status will be returned
248 *              and the value of OutBuffer is undefined.
249 *
250 ******************************************************************************/
251
252ACPI_STATUS
253AcpiGetSystemInfo (
254    ACPI_BUFFER             *OutBuffer)
255{
256    ACPI_SYSTEM_INFO        *InfoPtr;
257    ACPI_STATUS             Status;
258
259
260    ACPI_FUNCTION_TRACE (AcpiGetSystemInfo);
261
262
263    /* Parameter validation */
264
265    Status = AcpiUtValidateBuffer (OutBuffer);
266    if (ACPI_FAILURE (Status))
267    {
268        return_ACPI_STATUS (Status);
269    }
270
271    /* Validate/Allocate/Clear caller buffer */
272
273    Status = AcpiUtInitializeBuffer (OutBuffer, sizeof (ACPI_SYSTEM_INFO));
274    if (ACPI_FAILURE (Status))
275    {
276        return_ACPI_STATUS (Status);
277    }
278
279    /*
280     * Populate the return buffer
281     */
282    InfoPtr = (ACPI_SYSTEM_INFO *) OutBuffer->Pointer;
283    InfoPtr->AcpiCaVersion = ACPI_CA_VERSION;
284
285    /* System flags (ACPI capabilities) */
286
287    InfoPtr->Flags = ACPI_SYS_MODE_ACPI;
288
289    /* Timer resolution - 24 or 32 bits  */
290
291    if (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER)
292    {
293        InfoPtr->TimerResolution = 24;
294    }
295    else
296    {
297        InfoPtr->TimerResolution = 32;
298    }
299
300    /* Clear the reserved fields */
301
302    InfoPtr->Reserved1 = 0;
303    InfoPtr->Reserved2 = 0;
304
305    /* Current debug levels */
306
307    InfoPtr->DebugLayer = AcpiDbgLayer;
308    InfoPtr->DebugLevel = AcpiDbgLevel;
309
310    return_ACPI_STATUS (AE_OK);
311}
312
313ACPI_EXPORT_SYMBOL (AcpiGetSystemInfo)
314
315
316/*******************************************************************************
317 *
318 * FUNCTION:    AcpiGetStatistics
319 *
320 * PARAMETERS:  Stats           - Where the statistics are returned
321 *
322 * RETURN:      Status          - the status of the call
323 *
324 * DESCRIPTION: Get the contents of the various system counters
325 *
326 ******************************************************************************/
327
328ACPI_STATUS
329AcpiGetStatistics (
330    ACPI_STATISTICS         *Stats)
331{
332    ACPI_FUNCTION_TRACE (AcpiGetStatistics);
333
334
335    /* Parameter validation */
336
337    if (!Stats)
338    {
339        return_ACPI_STATUS (AE_BAD_PARAMETER);
340    }
341
342    /* Various interrupt-based event counters */
343
344    Stats->SciCount = AcpiSciCount;
345    Stats->GpeCount = AcpiGpeCount;
346
347    memcpy (Stats->FixedEventCount, AcpiFixedEventCount,
348        sizeof (AcpiFixedEventCount));
349
350    /* Other counters */
351
352    Stats->MethodCount = AcpiMethodCount;
353    return_ACPI_STATUS (AE_OK);
354}
355
356ACPI_EXPORT_SYMBOL (AcpiGetStatistics)
357
358
359/*****************************************************************************
360 *
361 * FUNCTION:    AcpiInstallInitializationHandler
362 *
363 * PARAMETERS:  Handler             - Callback procedure
364 *              Function            - Not (currently) used, see below
365 *
366 * RETURN:      Status
367 *
368 * DESCRIPTION: Install an initialization handler
369 *
370 * TBD: When a second function is added, must save the Function also.
371 *
372 ****************************************************************************/
373
374ACPI_STATUS
375AcpiInstallInitializationHandler (
376    ACPI_INIT_HANDLER       Handler,
377    UINT32                  Function)
378{
379
380    if (!Handler)
381    {
382        return (AE_BAD_PARAMETER);
383    }
384
385    if (AcpiGbl_InitHandler)
386    {
387        return (AE_ALREADY_EXISTS);
388    }
389
390    AcpiGbl_InitHandler = Handler;
391    return (AE_OK);
392}
393
394ACPI_EXPORT_SYMBOL (AcpiInstallInitializationHandler)
395
396
397/*****************************************************************************
398 *
399 * FUNCTION:    AcpiPurgeCachedObjects
400 *
401 * PARAMETERS:  None
402 *
403 * RETURN:      Status
404 *
405 * DESCRIPTION: Empty all caches (delete the cached objects)
406 *
407 ****************************************************************************/
408
409ACPI_STATUS
410AcpiPurgeCachedObjects (
411    void)
412{
413    ACPI_FUNCTION_TRACE (AcpiPurgeCachedObjects);
414
415
416    (void) AcpiOsPurgeCache (AcpiGbl_StateCache);
417    (void) AcpiOsPurgeCache (AcpiGbl_OperandCache);
418    (void) AcpiOsPurgeCache (AcpiGbl_PsNodeCache);
419    (void) AcpiOsPurgeCache (AcpiGbl_PsNodeExtCache);
420
421    return_ACPI_STATUS (AE_OK);
422}
423
424ACPI_EXPORT_SYMBOL (AcpiPurgeCachedObjects)
425
426
427/*****************************************************************************
428 *
429 * FUNCTION:    AcpiInstallInterface
430 *
431 * PARAMETERS:  InterfaceName       - The interface to install
432 *
433 * RETURN:      Status
434 *
435 * DESCRIPTION: Install an _OSI interface to the global list
436 *
437 ****************************************************************************/
438
439ACPI_STATUS
440AcpiInstallInterface (
441    ACPI_STRING             InterfaceName)
442{
443    ACPI_STATUS             Status;
444    ACPI_INTERFACE_INFO     *InterfaceInfo;
445
446
447    /* Parameter validation */
448
449    if (!InterfaceName || (strlen (InterfaceName) == 0))
450    {
451        return (AE_BAD_PARAMETER);
452    }
453
454    Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
455    if (ACPI_FAILURE (Status))
456    {
457        return (Status);
458    }
459
460    /* Check if the interface name is already in the global list */
461
462    InterfaceInfo = AcpiUtGetInterface (InterfaceName);
463    if (InterfaceInfo)
464    {
465        /*
466         * The interface already exists in the list. This is OK if the
467         * interface has been marked invalid -- just clear the bit.
468         */
469        if (InterfaceInfo->Flags & ACPI_OSI_INVALID)
470        {
471            InterfaceInfo->Flags &= ~ACPI_OSI_INVALID;
472            Status = AE_OK;
473        }
474        else
475        {
476            Status = AE_ALREADY_EXISTS;
477        }
478    }
479    else
480    {
481        /* New interface name, install into the global list */
482
483        Status = AcpiUtInstallInterface (InterfaceName);
484    }
485
486    AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
487    return (Status);
488}
489
490ACPI_EXPORT_SYMBOL (AcpiInstallInterface)
491
492
493/*****************************************************************************
494 *
495 * FUNCTION:    AcpiRemoveInterface
496 *
497 * PARAMETERS:  InterfaceName       - The interface to remove
498 *
499 * RETURN:      Status
500 *
501 * DESCRIPTION: Remove an _OSI interface from the global list
502 *
503 ****************************************************************************/
504
505ACPI_STATUS
506AcpiRemoveInterface (
507    ACPI_STRING             InterfaceName)
508{
509    ACPI_STATUS             Status;
510
511
512    /* Parameter validation */
513
514    if (!InterfaceName || (strlen (InterfaceName) == 0))
515    {
516        return (AE_BAD_PARAMETER);
517    }
518
519    Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
520    if (ACPI_FAILURE (Status))
521    {
522        return (Status);
523    }
524
525    Status = AcpiUtRemoveInterface (InterfaceName);
526
527    AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
528    return (Status);
529}
530
531ACPI_EXPORT_SYMBOL (AcpiRemoveInterface)
532
533
534/*****************************************************************************
535 *
536 * FUNCTION:    AcpiInstallInterfaceHandler
537 *
538 * PARAMETERS:  Handler             - The _OSI interface handler to install
539 *                                    NULL means "remove existing handler"
540 *
541 * RETURN:      Status
542 *
543 * DESCRIPTION: Install a handler for the predefined _OSI ACPI method.
544 *              invoked during execution of the internal implementation of
545 *              _OSI. A NULL handler simply removes any existing handler.
546 *
547 ****************************************************************************/
548
549ACPI_STATUS
550AcpiInstallInterfaceHandler (
551    ACPI_INTERFACE_HANDLER  Handler)
552{
553    ACPI_STATUS             Status;
554
555
556    Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
557    if (ACPI_FAILURE (Status))
558    {
559        return (Status);
560    }
561
562    if (Handler && AcpiGbl_InterfaceHandler)
563    {
564        Status = AE_ALREADY_EXISTS;
565    }
566    else
567    {
568        AcpiGbl_InterfaceHandler = Handler;
569    }
570
571    AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
572    return (Status);
573}
574
575ACPI_EXPORT_SYMBOL (AcpiInstallInterfaceHandler)
576
577
578/*****************************************************************************
579 *
580 * FUNCTION:    AcpiUpdateInterfaces
581 *
582 * PARAMETERS:  Action              - Actions to be performed during the
583 *                                    update
584 *
585 * RETURN:      Status
586 *
587 * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
588 *              string or/and feature group strings.
589 *
590 ****************************************************************************/
591
592ACPI_STATUS
593AcpiUpdateInterfaces (
594    UINT8                   Action)
595{
596    ACPI_STATUS             Status;
597
598
599    Status = AcpiOsAcquireMutex (AcpiGbl_OsiMutex, ACPI_WAIT_FOREVER);
600    if (ACPI_FAILURE (Status))
601    {
602        return (Status);
603    }
604
605    Status = AcpiUtUpdateInterfaces (Action);
606
607    AcpiOsReleaseMutex (AcpiGbl_OsiMutex);
608    return (Status);
609}
610
611
612/*****************************************************************************
613 *
614 * FUNCTION:    AcpiCheckAddressRange
615 *
616 * PARAMETERS:  SpaceId             - Address space ID
617 *              Address             - Start address
618 *              Length              - Length
619 *              Warn                - TRUE if warning on overlap desired
620 *
621 * RETURN:      Count of the number of conflicts detected.
622 *
623 * DESCRIPTION: Check if the input address range overlaps any of the
624 *              ASL operation region address ranges.
625 *
626 ****************************************************************************/
627
628UINT32
629AcpiCheckAddressRange (
630    ACPI_ADR_SPACE_TYPE     SpaceId,
631    ACPI_PHYSICAL_ADDRESS   Address,
632    ACPI_SIZE               Length,
633    BOOLEAN                 Warn)
634{
635    UINT32                  Overlaps;
636    ACPI_STATUS             Status;
637
638
639    Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
640    if (ACPI_FAILURE (Status))
641    {
642        return (0);
643    }
644
645    Overlaps = AcpiUtCheckAddressRange (SpaceId, Address,
646        (UINT32) Length, Warn);
647
648    (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
649    return (Overlaps);
650}
651
652ACPI_EXPORT_SYMBOL (AcpiCheckAddressRange)
653
654#endif /* !ACPI_ASL_COMPILER */
655
656
657/*******************************************************************************
658 *
659 * FUNCTION:    AcpiDecodePldBuffer
660 *
661 * PARAMETERS:  InBuffer            - Buffer returned by _PLD method
662 *              Length              - Length of the InBuffer
663 *              ReturnBuffer        - Where the decode buffer is returned
664 *
665 * RETURN:      Status and the decoded _PLD buffer. User must deallocate
666 *              the buffer via ACPI_FREE.
667 *
668 * DESCRIPTION: Decode the bit-packed buffer returned by the _PLD method into
669 *              a local struct that is much more useful to an ACPI driver.
670 *
671 ******************************************************************************/
672
673ACPI_STATUS
674AcpiDecodePldBuffer (
675    UINT8                   *InBuffer,
676    ACPI_SIZE               Length,
677    ACPI_PLD_INFO           **ReturnBuffer)
678{
679    ACPI_PLD_INFO           *PldInfo;
680    UINT32                  *Buffer = ACPI_CAST_PTR (UINT32, InBuffer);
681    UINT32                  Dword;
682
683
684    /* Parameter validation */
685
686    if (!InBuffer || !ReturnBuffer || (Length < ACPI_PLD_REV1_BUFFER_SIZE))
687    {
688        return (AE_BAD_PARAMETER);
689    }
690
691    PldInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_PLD_INFO));
692    if (!PldInfo)
693    {
694        return (AE_NO_MEMORY);
695    }
696
697    /* First 32-bit DWord */
698
699    ACPI_MOVE_32_TO_32 (&Dword, &Buffer[0]);
700    PldInfo->Revision =             ACPI_PLD_GET_REVISION (&Dword);
701    PldInfo->IgnoreColor =          ACPI_PLD_GET_IGNORE_COLOR (&Dword);
702    PldInfo->Red =                  ACPI_PLD_GET_RED (&Dword);
703    PldInfo->Green =                ACPI_PLD_GET_GREEN (&Dword);
704    PldInfo->Blue =                 ACPI_PLD_GET_BLUE (&Dword);
705
706    /* Second 32-bit DWord */
707
708    ACPI_MOVE_32_TO_32 (&Dword, &Buffer[1]);
709    PldInfo->Width =                ACPI_PLD_GET_WIDTH (&Dword);
710    PldInfo->Height =               ACPI_PLD_GET_HEIGHT(&Dword);
711
712    /* Third 32-bit DWord */
713
714    ACPI_MOVE_32_TO_32 (&Dword, &Buffer[2]);
715    PldInfo->UserVisible =          ACPI_PLD_GET_USER_VISIBLE (&Dword);
716    PldInfo->Dock =                 ACPI_PLD_GET_DOCK (&Dword);
717    PldInfo->Lid =                  ACPI_PLD_GET_LID (&Dword);
718    PldInfo->Panel =                ACPI_PLD_GET_PANEL (&Dword);
719    PldInfo->VerticalPosition =     ACPI_PLD_GET_VERTICAL (&Dword);
720    PldInfo->HorizontalPosition =   ACPI_PLD_GET_HORIZONTAL (&Dword);
721    PldInfo->Shape =                ACPI_PLD_GET_SHAPE (&Dword);
722    PldInfo->GroupOrientation =     ACPI_PLD_GET_ORIENTATION (&Dword);
723    PldInfo->GroupToken =           ACPI_PLD_GET_TOKEN (&Dword);
724    PldInfo->GroupPosition =        ACPI_PLD_GET_POSITION (&Dword);
725    PldInfo->Bay =                  ACPI_PLD_GET_BAY (&Dword);
726
727    /* Fourth 32-bit DWord */
728
729    ACPI_MOVE_32_TO_32 (&Dword, &Buffer[3]);
730    PldInfo->Ejectable =            ACPI_PLD_GET_EJECTABLE (&Dword);
731    PldInfo->OspmEjectRequired =    ACPI_PLD_GET_OSPM_EJECT (&Dword);
732    PldInfo->CabinetNumber =        ACPI_PLD_GET_CABINET (&Dword);
733    PldInfo->CardCageNumber =       ACPI_PLD_GET_CARD_CAGE (&Dword);
734    PldInfo->Reference =            ACPI_PLD_GET_REFERENCE (&Dword);
735    PldInfo->Rotation =             ACPI_PLD_GET_ROTATION (&Dword);
736    PldInfo->Order =                ACPI_PLD_GET_ORDER (&Dword);
737
738    if (Length >= ACPI_PLD_REV2_BUFFER_SIZE)
739    {
740        /* Fifth 32-bit DWord (Revision 2 of _PLD) */
741
742        ACPI_MOVE_32_TO_32 (&Dword, &Buffer[4]);
743        PldInfo->VerticalOffset =       ACPI_PLD_GET_VERT_OFFSET (&Dword);
744        PldInfo->HorizontalOffset =     ACPI_PLD_GET_HORIZ_OFFSET (&Dword);
745    }
746
747    *ReturnBuffer = PldInfo;
748    return (AE_OK);
749}
750
751ACPI_EXPORT_SYMBOL (AcpiDecodePldBuffer)
752