17c478bd9Sstevel@tonic-gate /******************************************************************************
27c478bd9Sstevel@tonic-gate *
37b1019a6SJerry Jelinek * Module Name: tbxface - ACPI table-oriented external interfaces
47c478bd9Sstevel@tonic-gate *
57c478bd9Sstevel@tonic-gate *****************************************************************************/
67c478bd9Sstevel@tonic-gate
7*35786f68SRobert Mustacchi /******************************************************************************
8*35786f68SRobert Mustacchi *
9*35786f68SRobert Mustacchi * 1. Copyright Notice
10*35786f68SRobert Mustacchi *
11*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
127c478bd9Sstevel@tonic-gate * All rights reserved.
137c478bd9Sstevel@tonic-gate *
14*35786f68SRobert Mustacchi * 2. License
15*35786f68SRobert Mustacchi *
16*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
17*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
18*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
19*35786f68SRobert Mustacchi * property rights.
20*35786f68SRobert Mustacchi *
21*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
23*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
25*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
26*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
27*35786f68SRobert Mustacchi *
28*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
30*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
31*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
32*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
33*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
34*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
35*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
36*35786f68SRobert Mustacchi *
37*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
38*35786f68SRobert Mustacchi * conditions are met:
39*35786f68SRobert Mustacchi *
40*35786f68SRobert Mustacchi * 3. Conditions
41*35786f68SRobert Mustacchi *
42*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
44*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
45*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
46*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
47*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
48*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
49*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
50*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
51*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
52*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
53*35786f68SRobert Mustacchi *
54*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
56*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
57*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
58*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
59*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
60*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
61*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
62*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
63*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
64*35786f68SRobert Mustacchi * make.
65*35786f68SRobert Mustacchi *
66*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
67*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
68*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
69*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
70*35786f68SRobert Mustacchi * distribution.
71*35786f68SRobert Mustacchi *
72*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
73*35786f68SRobert Mustacchi * Intel Code.
74*35786f68SRobert Mustacchi *
75*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
77*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
78*35786f68SRobert Mustacchi * without prior written authorization from Intel.
79*35786f68SRobert Mustacchi *
80*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
81*35786f68SRobert Mustacchi *
82*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
89*35786f68SRobert Mustacchi *
90*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97*35786f68SRobert Mustacchi * LIMITED REMEDY.
98*35786f68SRobert Mustacchi *
99*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
100*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
101*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
102*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
103*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
104*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
105*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
106*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
107*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
109*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
110*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
111*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
112*35786f68SRobert Mustacchi * such license, approval or letter.
113*35786f68SRobert Mustacchi *
114*35786f68SRobert Mustacchi *****************************************************************************
115*35786f68SRobert Mustacchi *
116*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
117*35786f68SRobert Mustacchi * following license:
118*35786f68SRobert Mustacchi *
11926f3cdf0SGordon Ross * Redistribution and use in source and binary forms, with or without
12026f3cdf0SGordon Ross * modification, are permitted provided that the following conditions
12126f3cdf0SGordon Ross * are met:
12226f3cdf0SGordon Ross * 1. Redistributions of source code must retain the above copyright
12326f3cdf0SGordon Ross * notice, this list of conditions, and the following disclaimer,
12426f3cdf0SGordon Ross * without modification.
12526f3cdf0SGordon Ross * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12626f3cdf0SGordon Ross * substantially similar to the "NO WARRANTY" disclaimer below
12726f3cdf0SGordon Ross * ("Disclaimer") and any redistribution must be conditioned upon
12826f3cdf0SGordon Ross * including a substantially similar Disclaimer requirement for further
12926f3cdf0SGordon Ross * binary redistribution.
13026f3cdf0SGordon Ross * 3. Neither the names of the above-listed copyright holders nor the names
13126f3cdf0SGordon Ross * of any contributors may be used to endorse or promote products derived
13226f3cdf0SGordon Ross * from this software without specific prior written permission.
13326f3cdf0SGordon Ross *
13426f3cdf0SGordon Ross * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13526f3cdf0SGordon Ross * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
13726f3cdf0SGordon Ross * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145*35786f68SRobert Mustacchi *
146*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
147*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
148*35786f68SRobert Mustacchi * Software Foundation.
149*35786f68SRobert Mustacchi *
150*35786f68SRobert Mustacchi *****************************************************************************/
1517c478bd9Sstevel@tonic-gate
1527b1019a6SJerry Jelinek #define EXPORT_ACPI_INTERFACES
1537c478bd9Sstevel@tonic-gate
1547c478bd9Sstevel@tonic-gate #include "acpi.h"
155aa2aa9a6SDana Myers #include "accommon.h"
1567c478bd9Sstevel@tonic-gate #include "actables.h"
1577c478bd9Sstevel@tonic-gate
1587c478bd9Sstevel@tonic-gate #define _COMPONENT ACPI_TABLES
1597c478bd9Sstevel@tonic-gate ACPI_MODULE_NAME ("tbxface")
1607c478bd9Sstevel@tonic-gate
1617c478bd9Sstevel@tonic-gate
1627c478bd9Sstevel@tonic-gate /*******************************************************************************
1637c478bd9Sstevel@tonic-gate *
164db2bae30SDana Myers * FUNCTION: AcpiAllocateRootTable
1657c478bd9Sstevel@tonic-gate *
166db2bae30SDana Myers * PARAMETERS: InitialTableCount - Size of InitialTableArray, in number of
167db2bae30SDana Myers * ACPI_TABLE_DESC structures
1687c478bd9Sstevel@tonic-gate *
1697c478bd9Sstevel@tonic-gate * RETURN: Status
1707c478bd9Sstevel@tonic-gate *
171db2bae30SDana Myers * DESCRIPTION: Allocate a root table array. Used by iASL compiler and
172db2bae30SDana Myers * AcpiInitializeTables.
1737c478bd9Sstevel@tonic-gate *
1747c478bd9Sstevel@tonic-gate ******************************************************************************/
1757c478bd9Sstevel@tonic-gate
1767c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiAllocateRootTable(UINT32 InitialTableCount)177db2bae30SDana Myers AcpiAllocateRootTable (
178db2bae30SDana Myers UINT32 InitialTableCount)
1797c478bd9Sstevel@tonic-gate {
1807c478bd9Sstevel@tonic-gate
18126f3cdf0SGordon Ross AcpiGbl_RootTableList.MaxTableCount = InitialTableCount;
182db2bae30SDana Myers AcpiGbl_RootTableList.Flags = ACPI_ROOT_ALLOW_RESIZE;
1837c478bd9Sstevel@tonic-gate
184db2bae30SDana Myers return (AcpiTbResizeRootTableList ());
185db2bae30SDana Myers }
1867c478bd9Sstevel@tonic-gate
1877c478bd9Sstevel@tonic-gate
188db2bae30SDana Myers /*******************************************************************************
189db2bae30SDana Myers *
190db2bae30SDana Myers * FUNCTION: AcpiInitializeTables
191db2bae30SDana Myers *
192db2bae30SDana Myers * PARAMETERS: InitialTableArray - Pointer to an array of pre-allocated
193db2bae30SDana Myers * ACPI_TABLE_DESC structures. If NULL, the
194db2bae30SDana Myers * array is dynamically allocated.
195db2bae30SDana Myers * InitialTableCount - Size of InitialTableArray, in number of
196db2bae30SDana Myers * ACPI_TABLE_DESC structures
1977b1019a6SJerry Jelinek * AllowResize - Flag to tell Table Manager if resize of
198db2bae30SDana Myers * pre-allocated array is allowed. Ignored
199db2bae30SDana Myers * if InitialTableArray is NULL.
200db2bae30SDana Myers *
201db2bae30SDana Myers * RETURN: Status
202db2bae30SDana Myers *
203db2bae30SDana Myers * DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT.
204db2bae30SDana Myers *
205db2bae30SDana Myers * NOTE: Allows static allocation of the initial table array in order
206db2bae30SDana Myers * to avoid the use of dynamic memory in confined environments
207db2bae30SDana Myers * such as the kernel boot sequence where it may not be available.
208db2bae30SDana Myers *
209db2bae30SDana Myers * If the host OS memory managers are initialized, use NULL for
210db2bae30SDana Myers * InitialTableArray, and the table will be dynamically allocated.
211db2bae30SDana Myers *
212db2bae30SDana Myers ******************************************************************************/
2137c478bd9Sstevel@tonic-gate
214*35786f68SRobert Mustacchi ACPI_STATUS ACPI_INIT_FUNCTION
AcpiInitializeTables(ACPI_TABLE_DESC * InitialTableArray,UINT32 InitialTableCount,BOOLEAN AllowResize)215db2bae30SDana Myers AcpiInitializeTables (
216db2bae30SDana Myers ACPI_TABLE_DESC *InitialTableArray,
217db2bae30SDana Myers UINT32 InitialTableCount,
218db2bae30SDana Myers BOOLEAN AllowResize)
219db2bae30SDana Myers {
220db2bae30SDana Myers ACPI_PHYSICAL_ADDRESS RsdpAddress;
221db2bae30SDana Myers ACPI_STATUS Status;
2227c478bd9Sstevel@tonic-gate
2237c478bd9Sstevel@tonic-gate
224db2bae30SDana Myers ACPI_FUNCTION_TRACE (AcpiInitializeTables);
2257c478bd9Sstevel@tonic-gate
2267c478bd9Sstevel@tonic-gate
227db2bae30SDana Myers /*
2287b1019a6SJerry Jelinek * Setup the Root Table Array and allocate the table array
2297b1019a6SJerry Jelinek * if requested
230db2bae30SDana Myers */
231db2bae30SDana Myers if (!InitialTableArray)
2327c478bd9Sstevel@tonic-gate {
233db2bae30SDana Myers Status = AcpiAllocateRootTable (InitialTableCount);
234db2bae30SDana Myers if (ACPI_FAILURE (Status))
235db2bae30SDana Myers {
236db2bae30SDana Myers return_ACPI_STATUS (Status);
237db2bae30SDana Myers }
2387c478bd9Sstevel@tonic-gate }
239db2bae30SDana Myers else
240db2bae30SDana Myers {
241db2bae30SDana Myers /* Root Table Array has been statically allocated by the host */
2427c478bd9Sstevel@tonic-gate
2437b1019a6SJerry Jelinek memset (InitialTableArray, 0,
244db2bae30SDana Myers (ACPI_SIZE) InitialTableCount * sizeof (ACPI_TABLE_DESC));
2457c478bd9Sstevel@tonic-gate
246db2bae30SDana Myers AcpiGbl_RootTableList.Tables = InitialTableArray;
24726f3cdf0SGordon Ross AcpiGbl_RootTableList.MaxTableCount = InitialTableCount;
248db2bae30SDana Myers AcpiGbl_RootTableList.Flags = ACPI_ROOT_ORIGIN_UNKNOWN;
249db2bae30SDana Myers if (AllowResize)
250db2bae30SDana Myers {
251db2bae30SDana Myers AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ALLOW_RESIZE;
252db2bae30SDana Myers }
2537c478bd9Sstevel@tonic-gate }
2547c478bd9Sstevel@tonic-gate
255db2bae30SDana Myers /* Get the address of the RSDP */
2567c478bd9Sstevel@tonic-gate
257db2bae30SDana Myers RsdpAddress = AcpiOsGetRootPointer ();
258db2bae30SDana Myers if (!RsdpAddress)
2597c478bd9Sstevel@tonic-gate {
260db2bae30SDana Myers return_ACPI_STATUS (AE_NOT_FOUND);
2617c478bd9Sstevel@tonic-gate }
2627c478bd9Sstevel@tonic-gate
263db2bae30SDana Myers /*
264db2bae30SDana Myers * Get the root table (RSDT or XSDT) and extract all entries to the local
265db2bae30SDana Myers * Root Table Array. This array contains the information of the RSDT/XSDT
266db2bae30SDana Myers * in a common, more useable format.
267db2bae30SDana Myers */
268aa2aa9a6SDana Myers Status = AcpiTbParseRootTable (RsdpAddress);
2697c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
2707c478bd9Sstevel@tonic-gate }
2717c478bd9Sstevel@tonic-gate
ACPI_EXPORT_SYMBOL_INIT(AcpiInitializeTables)2727b1019a6SJerry Jelinek ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeTables)
27327f7c583Smyers
2747c478bd9Sstevel@tonic-gate
2757c478bd9Sstevel@tonic-gate /*******************************************************************************
2767c478bd9Sstevel@tonic-gate *
277db2bae30SDana Myers * FUNCTION: AcpiReallocateRootTable
2787c478bd9Sstevel@tonic-gate *
279db2bae30SDana Myers * PARAMETERS: None
2807c478bd9Sstevel@tonic-gate *
2817c478bd9Sstevel@tonic-gate * RETURN: Status
2827c478bd9Sstevel@tonic-gate *
283db2bae30SDana Myers * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the
284db2bae30SDana Myers * root list from the previously provided scratch area. Should
285db2bae30SDana Myers * be called once dynamic memory allocation is available in the
2867b1019a6SJerry Jelinek * kernel.
2877c478bd9Sstevel@tonic-gate *
2887c478bd9Sstevel@tonic-gate ******************************************************************************/
2897c478bd9Sstevel@tonic-gate
290*35786f68SRobert Mustacchi ACPI_STATUS ACPI_INIT_FUNCTION
291db2bae30SDana Myers AcpiReallocateRootTable (
292db2bae30SDana Myers void)
2937c478bd9Sstevel@tonic-gate {
2947b1019a6SJerry Jelinek ACPI_STATUS Status;
295*35786f68SRobert Mustacchi ACPI_TABLE_DESC *TableDesc;
296*35786f68SRobert Mustacchi UINT32 i, j;
2977c478bd9Sstevel@tonic-gate
2987c478bd9Sstevel@tonic-gate
299db2bae30SDana Myers ACPI_FUNCTION_TRACE (AcpiReallocateRootTable);
3007c478bd9Sstevel@tonic-gate
3017c478bd9Sstevel@tonic-gate
302db2bae30SDana Myers /*
303*35786f68SRobert Mustacchi * If there are tables unverified, it is required to reallocate the
304*35786f68SRobert Mustacchi * root table list to clean up invalid table entries. Otherwise only
305*35786f68SRobert Mustacchi * reallocate the root table list if the host provided a static buffer
306*35786f68SRobert Mustacchi * for the table array in the call to AcpiInitializeTables().
307db2bae30SDana Myers */
308*35786f68SRobert Mustacchi if ((AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) &&
309*35786f68SRobert Mustacchi AcpiGbl_EnableTableValidation)
3107c478bd9Sstevel@tonic-gate {
311db2bae30SDana Myers return_ACPI_STATUS (AE_SUPPORT);
3127c478bd9Sstevel@tonic-gate }
3137c478bd9Sstevel@tonic-gate
314*35786f68SRobert Mustacchi (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
315*35786f68SRobert Mustacchi
316*35786f68SRobert Mustacchi /*
317*35786f68SRobert Mustacchi * Ensure OS early boot logic, which is required by some hosts. If the
318*35786f68SRobert Mustacchi * table state is reported to be wrong, developers should fix the
319*35786f68SRobert Mustacchi * issue by invoking AcpiPutTable() for the reported table during the
320*35786f68SRobert Mustacchi * early stage.
321*35786f68SRobert Mustacchi */
322*35786f68SRobert Mustacchi for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
323*35786f68SRobert Mustacchi {
324*35786f68SRobert Mustacchi TableDesc = &AcpiGbl_RootTableList.Tables[i];
325*35786f68SRobert Mustacchi if (TableDesc->Pointer)
326*35786f68SRobert Mustacchi {
327*35786f68SRobert Mustacchi ACPI_ERROR ((AE_INFO,
328*35786f68SRobert Mustacchi "Table [%4.4s] is not invalidated during early boot stage",
329*35786f68SRobert Mustacchi TableDesc->Signature.Ascii));
330*35786f68SRobert Mustacchi }
331*35786f68SRobert Mustacchi }
332db2bae30SDana Myers
333*35786f68SRobert Mustacchi if (!AcpiGbl_EnableTableValidation)
334*35786f68SRobert Mustacchi {
335*35786f68SRobert Mustacchi /*
336*35786f68SRobert Mustacchi * Now it's safe to do full table validation. We can do deferred
337*35786f68SRobert Mustacchi * table initilization here once the flag is set.
338*35786f68SRobert Mustacchi */
339*35786f68SRobert Mustacchi AcpiGbl_EnableTableValidation = TRUE;
340*35786f68SRobert Mustacchi for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
341*35786f68SRobert Mustacchi {
342*35786f68SRobert Mustacchi TableDesc = &AcpiGbl_RootTableList.Tables[i];
343*35786f68SRobert Mustacchi if (!(TableDesc->Flags & ACPI_TABLE_IS_VERIFIED))
344*35786f68SRobert Mustacchi {
345*35786f68SRobert Mustacchi Status = AcpiTbVerifyTempTable (TableDesc, NULL, &j);
346*35786f68SRobert Mustacchi if (ACPI_FAILURE (Status))
347*35786f68SRobert Mustacchi {
348*35786f68SRobert Mustacchi AcpiTbUninstallTable (TableDesc);
349*35786f68SRobert Mustacchi }
350*35786f68SRobert Mustacchi }
351*35786f68SRobert Mustacchi }
352*35786f68SRobert Mustacchi }
353*35786f68SRobert Mustacchi
354*35786f68SRobert Mustacchi AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ALLOW_RESIZE;
3557b1019a6SJerry Jelinek Status = AcpiTbResizeRootTableList ();
356*35786f68SRobert Mustacchi AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
357*35786f68SRobert Mustacchi
358*35786f68SRobert Mustacchi (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
3597b1019a6SJerry Jelinek return_ACPI_STATUS (Status);
360db2bae30SDana Myers }
361db2bae30SDana Myers
ACPI_EXPORT_SYMBOL_INIT(AcpiReallocateRootTable)3627b1019a6SJerry Jelinek ACPI_EXPORT_SYMBOL_INIT (AcpiReallocateRootTable)
363db2bae30SDana Myers
364db2bae30SDana Myers
365aa2aa9a6SDana Myers /*******************************************************************************
366db2bae30SDana Myers *
367db2bae30SDana Myers * FUNCTION: AcpiGetTableHeader
368db2bae30SDana Myers *
369db2bae30SDana Myers * PARAMETERS: Signature - ACPI signature of needed table
370db2bae30SDana Myers * Instance - Which instance (for SSDTs)
371db2bae30SDana Myers * OutTableHeader - The pointer to the table header to fill
372db2bae30SDana Myers *
373db2bae30SDana Myers * RETURN: Status and pointer to mapped table header
374db2bae30SDana Myers *
375db2bae30SDana Myers * DESCRIPTION: Finds an ACPI table header.
376db2bae30SDana Myers *
377db2bae30SDana Myers * NOTE: Caller is responsible in unmapping the header with
378db2bae30SDana Myers * AcpiOsUnmapMemory
379db2bae30SDana Myers *
380aa2aa9a6SDana Myers ******************************************************************************/
381db2bae30SDana Myers
382db2bae30SDana Myers ACPI_STATUS
383db2bae30SDana Myers AcpiGetTableHeader (
384db2bae30SDana Myers char *Signature,
385db2bae30SDana Myers UINT32 Instance,
386db2bae30SDana Myers ACPI_TABLE_HEADER *OutTableHeader)
387db2bae30SDana Myers {
388db2bae30SDana Myers UINT32 i;
389db2bae30SDana Myers UINT32 j;
390db2bae30SDana Myers ACPI_TABLE_HEADER *Header;
391db2bae30SDana Myers
392db2bae30SDana Myers
393db2bae30SDana Myers /* Parameter validation */
394db2bae30SDana Myers
395db2bae30SDana Myers if (!Signature || !OutTableHeader)
396186507a7Smyers {
397db2bae30SDana Myers return (AE_BAD_PARAMETER);
398186507a7Smyers }
399186507a7Smyers
400aa2aa9a6SDana Myers /* Walk the root table list */
401aa2aa9a6SDana Myers
40226f3cdf0SGordon Ross for (i = 0, j = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
4037c478bd9Sstevel@tonic-gate {
4047b1019a6SJerry Jelinek if (!ACPI_COMPARE_NAME (
4057b1019a6SJerry Jelinek &(AcpiGbl_RootTableList.Tables[i].Signature), Signature))
406186507a7Smyers {
407db2bae30SDana Myers continue;
408db2bae30SDana Myers }
409186507a7Smyers
410db2bae30SDana Myers if (++j < Instance)
411db2bae30SDana Myers {
412db2bae30SDana Myers continue;
413186507a7Smyers }
414186507a7Smyers
415db2bae30SDana Myers if (!AcpiGbl_RootTableList.Tables[i].Pointer)
416db2bae30SDana Myers {
417aa2aa9a6SDana Myers if ((AcpiGbl_RootTableList.Tables[i].Flags &
418aa2aa9a6SDana Myers ACPI_TABLE_ORIGIN_MASK) ==
4197b1019a6SJerry Jelinek ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL)
420db2bae30SDana Myers {
421aa2aa9a6SDana Myers Header = AcpiOsMapMemory (
4227b1019a6SJerry Jelinek AcpiGbl_RootTableList.Tables[i].Address,
4237b1019a6SJerry Jelinek sizeof (ACPI_TABLE_HEADER));
424db2bae30SDana Myers if (!Header)
425db2bae30SDana Myers {
4267b1019a6SJerry Jelinek return (AE_NO_MEMORY);
427db2bae30SDana Myers }
428db2bae30SDana Myers
4297b1019a6SJerry Jelinek memcpy (OutTableHeader, Header, sizeof (ACPI_TABLE_HEADER));
4307b1019a6SJerry Jelinek AcpiOsUnmapMemory (Header, sizeof (ACPI_TABLE_HEADER));
431db2bae30SDana Myers }
432db2bae30SDana Myers else
433db2bae30SDana Myers {
4347b1019a6SJerry Jelinek return (AE_NOT_FOUND);
435db2bae30SDana Myers }
436db2bae30SDana Myers }
437db2bae30SDana Myers else
438db2bae30SDana Myers {
4397b1019a6SJerry Jelinek memcpy (OutTableHeader,
440aa2aa9a6SDana Myers AcpiGbl_RootTableList.Tables[i].Pointer,
4417b1019a6SJerry Jelinek sizeof (ACPI_TABLE_HEADER));
442db2bae30SDana Myers }
443db2bae30SDana Myers
444db2bae30SDana Myers return (AE_OK);
4457c478bd9Sstevel@tonic-gate }
4467c478bd9Sstevel@tonic-gate
447db2bae30SDana Myers return (AE_NOT_FOUND);
448db2bae30SDana Myers }
449db2bae30SDana Myers
ACPI_EXPORT_SYMBOL(AcpiGetTableHeader)450db2bae30SDana Myers ACPI_EXPORT_SYMBOL (AcpiGetTableHeader)
4517c478bd9Sstevel@tonic-gate
4527c478bd9Sstevel@tonic-gate
453aa2aa9a6SDana Myers /*******************************************************************************
454db2bae30SDana Myers *
455db2bae30SDana Myers * FUNCTION: AcpiGetTable
456db2bae30SDana Myers *
457db2bae30SDana Myers * PARAMETERS: Signature - ACPI signature of needed table
458db2bae30SDana Myers * Instance - Which instance (for SSDTs)
459db2bae30SDana Myers * OutTable - Where the pointer to the table is returned
460db2bae30SDana Myers *
4617b1019a6SJerry Jelinek * RETURN: Status and pointer to the requested table
462db2bae30SDana Myers *
4637b1019a6SJerry Jelinek * DESCRIPTION: Finds and verifies an ACPI table. Table must be in the
4647b1019a6SJerry Jelinek * RSDT/XSDT.
465*35786f68SRobert Mustacchi * Note that an early stage AcpiGetTable() call must be paired
466*35786f68SRobert Mustacchi * with an early stage AcpiPutTable() call. otherwise the table
467*35786f68SRobert Mustacchi * pointer mapped by the early stage mapping implementation may be
468*35786f68SRobert Mustacchi * erroneously unmapped by the late stage unmapping implementation
469*35786f68SRobert Mustacchi * in an AcpiPutTable() invoked during the late stage.
470db2bae30SDana Myers *
471aa2aa9a6SDana Myers ******************************************************************************/
4727c478bd9Sstevel@tonic-gate
473db2bae30SDana Myers ACPI_STATUS
474db2bae30SDana Myers AcpiGetTable (
475db2bae30SDana Myers char *Signature,
476db2bae30SDana Myers UINT32 Instance,
477db2bae30SDana Myers ACPI_TABLE_HEADER **OutTable)
478db2bae30SDana Myers {
479db2bae30SDana Myers UINT32 i;
480db2bae30SDana Myers UINT32 j;
481*35786f68SRobert Mustacchi ACPI_STATUS Status = AE_NOT_FOUND;
482*35786f68SRobert Mustacchi ACPI_TABLE_DESC *TableDesc;
4837c478bd9Sstevel@tonic-gate
4847c478bd9Sstevel@tonic-gate
485db2bae30SDana Myers /* Parameter validation */
4867c478bd9Sstevel@tonic-gate
487db2bae30SDana Myers if (!Signature || !OutTable)
488db2bae30SDana Myers {
489db2bae30SDana Myers return (AE_BAD_PARAMETER);
4907c478bd9Sstevel@tonic-gate }
4917c478bd9Sstevel@tonic-gate
492*35786f68SRobert Mustacchi /*
493*35786f68SRobert Mustacchi * Note that the following line is required by some OSPMs, they only
494*35786f68SRobert Mustacchi * check if the returned table is NULL instead of the returned status
495*35786f68SRobert Mustacchi * to determined if this function is succeeded.
496*35786f68SRobert Mustacchi */
497*35786f68SRobert Mustacchi *OutTable = NULL;
498*35786f68SRobert Mustacchi
499*35786f68SRobert Mustacchi (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
500*35786f68SRobert Mustacchi
501aa2aa9a6SDana Myers /* Walk the root table list */
502aa2aa9a6SDana Myers
50326f3cdf0SGordon Ross for (i = 0, j = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
5047c478bd9Sstevel@tonic-gate {
505*35786f68SRobert Mustacchi TableDesc = &AcpiGbl_RootTableList.Tables[i];
506*35786f68SRobert Mustacchi
507*35786f68SRobert Mustacchi if (!ACPI_COMPARE_NAME (&TableDesc->Signature, Signature))
508db2bae30SDana Myers {
509db2bae30SDana Myers continue;
510db2bae30SDana Myers }
511db2bae30SDana Myers
512db2bae30SDana Myers if (++j < Instance)
513db2bae30SDana Myers {
514db2bae30SDana Myers continue;
515db2bae30SDana Myers }
516db2bae30SDana Myers
517*35786f68SRobert Mustacchi Status = AcpiTbGetTable (TableDesc, OutTable);
518*35786f68SRobert Mustacchi break;
519*35786f68SRobert Mustacchi }
520*35786f68SRobert Mustacchi
521*35786f68SRobert Mustacchi (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
522*35786f68SRobert Mustacchi return (Status);
523*35786f68SRobert Mustacchi }
524*35786f68SRobert Mustacchi
ACPI_EXPORT_SYMBOL(AcpiGetTable)525*35786f68SRobert Mustacchi ACPI_EXPORT_SYMBOL (AcpiGetTable)
526*35786f68SRobert Mustacchi
527*35786f68SRobert Mustacchi
528*35786f68SRobert Mustacchi /*******************************************************************************
529*35786f68SRobert Mustacchi *
530*35786f68SRobert Mustacchi * FUNCTION: AcpiPutTable
531*35786f68SRobert Mustacchi *
532*35786f68SRobert Mustacchi * PARAMETERS: Table - The pointer to the table
533*35786f68SRobert Mustacchi *
534*35786f68SRobert Mustacchi * RETURN: None
535*35786f68SRobert Mustacchi *
536*35786f68SRobert Mustacchi * DESCRIPTION: Release a table returned by AcpiGetTable() and its clones.
537*35786f68SRobert Mustacchi * Note that it is not safe if this function was invoked after an
538*35786f68SRobert Mustacchi * uninstallation happened to the original table descriptor.
539*35786f68SRobert Mustacchi * Currently there is no OSPMs' requirement to handle such
540*35786f68SRobert Mustacchi * situations.
541*35786f68SRobert Mustacchi *
542*35786f68SRobert Mustacchi ******************************************************************************/
543*35786f68SRobert Mustacchi
544*35786f68SRobert Mustacchi void
545*35786f68SRobert Mustacchi AcpiPutTable (
546*35786f68SRobert Mustacchi ACPI_TABLE_HEADER *Table)
547*35786f68SRobert Mustacchi {
548*35786f68SRobert Mustacchi UINT32 i;
549*35786f68SRobert Mustacchi ACPI_TABLE_DESC *TableDesc;
550*35786f68SRobert Mustacchi
551*35786f68SRobert Mustacchi
552*35786f68SRobert Mustacchi ACPI_FUNCTION_TRACE (AcpiPutTable);
553*35786f68SRobert Mustacchi
554*35786f68SRobert Mustacchi
555*35786f68SRobert Mustacchi if (!Table)
556*35786f68SRobert Mustacchi {
557*35786f68SRobert Mustacchi return_VOID;
558*35786f68SRobert Mustacchi }
559*35786f68SRobert Mustacchi
560*35786f68SRobert Mustacchi (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
561*35786f68SRobert Mustacchi
562*35786f68SRobert Mustacchi /* Walk the root table list */
563*35786f68SRobert Mustacchi
564*35786f68SRobert Mustacchi for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
565*35786f68SRobert Mustacchi {
566*35786f68SRobert Mustacchi TableDesc = &AcpiGbl_RootTableList.Tables[i];
567*35786f68SRobert Mustacchi
568*35786f68SRobert Mustacchi if (TableDesc->Pointer != Table)
569db2bae30SDana Myers {
570*35786f68SRobert Mustacchi continue;
571db2bae30SDana Myers }
5727c478bd9Sstevel@tonic-gate
573*35786f68SRobert Mustacchi AcpiTbPutTable (TableDesc);
574*35786f68SRobert Mustacchi break;
5757c478bd9Sstevel@tonic-gate }
5767c478bd9Sstevel@tonic-gate
577*35786f68SRobert Mustacchi (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
578*35786f68SRobert Mustacchi return_VOID;
5797c478bd9Sstevel@tonic-gate }
5807c478bd9Sstevel@tonic-gate
ACPI_EXPORT_SYMBOL(AcpiPutTable)581*35786f68SRobert Mustacchi ACPI_EXPORT_SYMBOL (AcpiPutTable)
58227f7c583Smyers
5837c478bd9Sstevel@tonic-gate
5847c478bd9Sstevel@tonic-gate /*******************************************************************************
5857c478bd9Sstevel@tonic-gate *
586db2bae30SDana Myers * FUNCTION: AcpiGetTableByIndex
5877c478bd9Sstevel@tonic-gate *
588db2bae30SDana Myers * PARAMETERS: TableIndex - Table index
589*35786f68SRobert Mustacchi * OutTable - Where the pointer to the table is returned
5907c478bd9Sstevel@tonic-gate *
5917b1019a6SJerry Jelinek * RETURN: Status and pointer to the requested table
5927c478bd9Sstevel@tonic-gate *
5937b1019a6SJerry Jelinek * DESCRIPTION: Obtain a table by an index into the global table list. Used
5947b1019a6SJerry Jelinek * internally also.
5957c478bd9Sstevel@tonic-gate *
5967c478bd9Sstevel@tonic-gate ******************************************************************************/
5977c478bd9Sstevel@tonic-gate
5987c478bd9Sstevel@tonic-gate ACPI_STATUS
599db2bae30SDana Myers AcpiGetTableByIndex (
600db2bae30SDana Myers UINT32 TableIndex,
601*35786f68SRobert Mustacchi ACPI_TABLE_HEADER **OutTable)
6027c478bd9Sstevel@tonic-gate {
603db2bae30SDana Myers ACPI_STATUS Status;
6047c478bd9Sstevel@tonic-gate
6057c478bd9Sstevel@tonic-gate
606db2bae30SDana Myers ACPI_FUNCTION_TRACE (AcpiGetTableByIndex);
6077c478bd9Sstevel@tonic-gate
6087c478bd9Sstevel@tonic-gate
6097c478bd9Sstevel@tonic-gate /* Parameter validation */
6107c478bd9Sstevel@tonic-gate
611*35786f68SRobert Mustacchi if (!OutTable)
6127c478bd9Sstevel@tonic-gate {
6137c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_BAD_PARAMETER);
6147c478bd9Sstevel@tonic-gate }
6157c478bd9Sstevel@tonic-gate
616*35786f68SRobert Mustacchi /*
617*35786f68SRobert Mustacchi * Note that the following line is required by some OSPMs, they only
618*35786f68SRobert Mustacchi * check if the returned table is NULL instead of the returned status
619*35786f68SRobert Mustacchi * to determined if this function is succeeded.
620*35786f68SRobert Mustacchi */
621*35786f68SRobert Mustacchi *OutTable = NULL;
622*35786f68SRobert Mustacchi
623db2bae30SDana Myers (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
6247c478bd9Sstevel@tonic-gate
625db2bae30SDana Myers /* Validate index */
626db2bae30SDana Myers
62726f3cdf0SGordon Ross if (TableIndex >= AcpiGbl_RootTableList.CurrentTableCount)
62827f7c583Smyers {
629*35786f68SRobert Mustacchi Status = AE_BAD_PARAMETER;
630*35786f68SRobert Mustacchi goto UnlockAndExit;
63127f7c583Smyers }
63227f7c583Smyers
633*35786f68SRobert Mustacchi Status = AcpiTbGetTable (
634*35786f68SRobert Mustacchi &AcpiGbl_RootTableList.Tables[TableIndex], OutTable);
6357c478bd9Sstevel@tonic-gate
636*35786f68SRobert Mustacchi UnlockAndExit:
637db2bae30SDana Myers (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
638*35786f68SRobert Mustacchi return_ACPI_STATUS (Status);
6397c478bd9Sstevel@tonic-gate }
6407c478bd9Sstevel@tonic-gate
ACPI_EXPORT_SYMBOL(AcpiGetTableByIndex)641db2bae30SDana Myers ACPI_EXPORT_SYMBOL (AcpiGetTableByIndex)
64227f7c583Smyers
6437c478bd9Sstevel@tonic-gate
6447c478bd9Sstevel@tonic-gate /*******************************************************************************
6457c478bd9Sstevel@tonic-gate *
646db2bae30SDana Myers * FUNCTION: AcpiInstallTableHandler
6477c478bd9Sstevel@tonic-gate *
648db2bae30SDana Myers * PARAMETERS: Handler - Table event handler
649db2bae30SDana Myers * Context - Value passed to the handler on each event
6507c478bd9Sstevel@tonic-gate *
6517c478bd9Sstevel@tonic-gate * RETURN: Status
6527c478bd9Sstevel@tonic-gate *
6537b1019a6SJerry Jelinek * DESCRIPTION: Install a global table event handler.
6547c478bd9Sstevel@tonic-gate *
6557c478bd9Sstevel@tonic-gate ******************************************************************************/
6567c478bd9Sstevel@tonic-gate
6577c478bd9Sstevel@tonic-gate ACPI_STATUS
658db2bae30SDana Myers AcpiInstallTableHandler (
659db2bae30SDana Myers ACPI_TABLE_HANDLER Handler,
660db2bae30SDana Myers void *Context)
6617c478bd9Sstevel@tonic-gate {
6627c478bd9Sstevel@tonic-gate ACPI_STATUS Status;
6637c478bd9Sstevel@tonic-gate
6647c478bd9Sstevel@tonic-gate
665db2bae30SDana Myers ACPI_FUNCTION_TRACE (AcpiInstallTableHandler);
6667c478bd9Sstevel@tonic-gate
6677c478bd9Sstevel@tonic-gate
668db2bae30SDana Myers if (!Handler)
6697c478bd9Sstevel@tonic-gate {
6707c478bd9Sstevel@tonic-gate return_ACPI_STATUS (AE_BAD_PARAMETER);
6717c478bd9Sstevel@tonic-gate }
6727c478bd9Sstevel@tonic-gate
673db2bae30SDana Myers Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
6747c478bd9Sstevel@tonic-gate if (ACPI_FAILURE (Status))
6757c478bd9Sstevel@tonic-gate {
6767c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
6777c478bd9Sstevel@tonic-gate }
6787c478bd9Sstevel@tonic-gate
679db2bae30SDana Myers /* Don't allow more than one handler */
6807c478bd9Sstevel@tonic-gate
681db2bae30SDana Myers if (AcpiGbl_TableHandler)
6827c478bd9Sstevel@tonic-gate {
683db2bae30SDana Myers Status = AE_ALREADY_EXISTS;
684db2bae30SDana Myers goto Cleanup;
6857c478bd9Sstevel@tonic-gate }
6867c478bd9Sstevel@tonic-gate
687db2bae30SDana Myers /* Install the handler */
6887c478bd9Sstevel@tonic-gate
689db2bae30SDana Myers AcpiGbl_TableHandler = Handler;
690db2bae30SDana Myers AcpiGbl_TableHandlerContext = Context;
6917c478bd9Sstevel@tonic-gate
692db2bae30SDana Myers Cleanup:
693db2bae30SDana Myers (void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
694db2bae30SDana Myers return_ACPI_STATUS (Status);
695db2bae30SDana Myers }
6967c478bd9Sstevel@tonic-gate
ACPI_EXPORT_SYMBOL(AcpiInstallTableHandler)697db2bae30SDana Myers ACPI_EXPORT_SYMBOL (AcpiInstallTableHandler)
6987c478bd9Sstevel@tonic-gate
6997c478bd9Sstevel@tonic-gate
700db2bae30SDana Myers /*******************************************************************************
701db2bae30SDana Myers *
702db2bae30SDana Myers * FUNCTION: AcpiRemoveTableHandler
703db2bae30SDana Myers *
704db2bae30SDana Myers * PARAMETERS: Handler - Table event handler that was installed
705db2bae30SDana Myers * previously.
706db2bae30SDana Myers *
707db2bae30SDana Myers * RETURN: Status
708db2bae30SDana Myers *
7097b1019a6SJerry Jelinek * DESCRIPTION: Remove a table event handler
710db2bae30SDana Myers *
711db2bae30SDana Myers ******************************************************************************/
712db2bae30SDana Myers
713db2bae30SDana Myers ACPI_STATUS
714db2bae30SDana Myers AcpiRemoveTableHandler (
715db2bae30SDana Myers ACPI_TABLE_HANDLER Handler)
716db2bae30SDana Myers {
717db2bae30SDana Myers ACPI_STATUS Status;
718db2bae30SDana Myers
7197c478bd9Sstevel@tonic-gate
720db2bae30SDana Myers ACPI_FUNCTION_TRACE (AcpiRemoveTableHandler);
7217c478bd9Sstevel@tonic-gate
722db2bae30SDana Myers
723db2bae30SDana Myers Status = AcpiUtAcquireMutex (ACPI_MTX_EVENTS);
7247c478bd9Sstevel@tonic-gate if (ACPI_FAILURE (Status))
7257c478bd9Sstevel@tonic-gate {
7267c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
7277c478bd9Sstevel@tonic-gate }
7287c478bd9Sstevel@tonic-gate
729db2bae30SDana Myers /* Make sure that the installed handler is the same */
7307c478bd9Sstevel@tonic-gate
731db2bae30SDana Myers if (!Handler ||
732db2bae30SDana Myers Handler != AcpiGbl_TableHandler)
733db2bae30SDana Myers {
734db2bae30SDana Myers Status = AE_BAD_PARAMETER;
735db2bae30SDana Myers goto Cleanup;
736db2bae30SDana Myers }
73727f7c583Smyers
738db2bae30SDana Myers /* Remove the handler */
7397c478bd9Sstevel@tonic-gate
740db2bae30SDana Myers AcpiGbl_TableHandler = NULL;
741db2bae30SDana Myers
742db2bae30SDana Myers Cleanup:
743db2bae30SDana Myers (void) AcpiUtReleaseMutex (ACPI_MTX_EVENTS);
744db2bae30SDana Myers return_ACPI_STATUS (Status);
745db2bae30SDana Myers }
74627f7c583Smyers
747db2bae30SDana Myers ACPI_EXPORT_SYMBOL (AcpiRemoveTableHandler)
748