1bc36eafdSMike Gerdts /*******************************************************************************
2bc36eafdSMike Gerdts *
3bc36eafdSMike Gerdts * Module Name: utstate - state object support procedures
4bc36eafdSMike Gerdts *
5bc36eafdSMike Gerdts ******************************************************************************/
6bc36eafdSMike Gerdts
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.
12bc36eafdSMike Gerdts * All rights reserved.
13bc36eafdSMike Gerdts *
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 *
119bc36eafdSMike Gerdts * Redistribution and use in source and binary forms, with or without
120bc36eafdSMike Gerdts * modification, are permitted provided that the following conditions
121bc36eafdSMike Gerdts * are met:
122bc36eafdSMike Gerdts * 1. Redistributions of source code must retain the above copyright
123bc36eafdSMike Gerdts * notice, this list of conditions, and the following disclaimer,
124bc36eafdSMike Gerdts * without modification.
125bc36eafdSMike Gerdts * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126bc36eafdSMike Gerdts * substantially similar to the "NO WARRANTY" disclaimer below
127bc36eafdSMike Gerdts * ("Disclaimer") and any redistribution must be conditioned upon
128bc36eafdSMike Gerdts * including a substantially similar Disclaimer requirement for further
129bc36eafdSMike Gerdts * binary redistribution.
130bc36eafdSMike Gerdts * 3. Neither the names of the above-listed copyright holders nor the names
131bc36eafdSMike Gerdts * of any contributors may be used to endorse or promote products derived
132bc36eafdSMike Gerdts * from this software without specific prior written permission.
133bc36eafdSMike Gerdts *
134*35786f68SRobert Mustacchi * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135*35786f68SRobert Mustacchi * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137*35786f68SRobert Mustacchi * 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
147bc36eafdSMike Gerdts * GNU General Public License ("GPL") version 2 as published by the Free
148bc36eafdSMike Gerdts * Software Foundation.
149bc36eafdSMike Gerdts *
150*35786f68SRobert Mustacchi *****************************************************************************/
151bc36eafdSMike Gerdts
152bc36eafdSMike Gerdts #include "acpi.h"
153bc36eafdSMike Gerdts #include "accommon.h"
154bc36eafdSMike Gerdts
155bc36eafdSMike Gerdts #define _COMPONENT ACPI_UTILITIES
156bc36eafdSMike Gerdts ACPI_MODULE_NAME ("utstate")
157bc36eafdSMike Gerdts
158bc36eafdSMike Gerdts
159bc36eafdSMike Gerdts /*******************************************************************************
160bc36eafdSMike Gerdts *
161bc36eafdSMike Gerdts * FUNCTION: AcpiUtPushGenericState
162bc36eafdSMike Gerdts *
163bc36eafdSMike Gerdts * PARAMETERS: ListHead - Head of the state stack
164bc36eafdSMike Gerdts * State - State object to push
165bc36eafdSMike Gerdts *
166bc36eafdSMike Gerdts * RETURN: None
167bc36eafdSMike Gerdts *
168bc36eafdSMike Gerdts * DESCRIPTION: Push a state object onto a state stack
169bc36eafdSMike Gerdts *
170bc36eafdSMike Gerdts ******************************************************************************/
171bc36eafdSMike Gerdts
172bc36eafdSMike Gerdts void
AcpiUtPushGenericState(ACPI_GENERIC_STATE ** ListHead,ACPI_GENERIC_STATE * State)173bc36eafdSMike Gerdts AcpiUtPushGenericState (
174bc36eafdSMike Gerdts ACPI_GENERIC_STATE **ListHead,
175bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State)
176bc36eafdSMike Gerdts {
177bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
178bc36eafdSMike Gerdts
179bc36eafdSMike Gerdts
180bc36eafdSMike Gerdts /* Push the state object onto the front of the list (stack) */
181bc36eafdSMike Gerdts
182bc36eafdSMike Gerdts State->Common.Next = *ListHead;
183bc36eafdSMike Gerdts *ListHead = State;
184bc36eafdSMike Gerdts return;
185bc36eafdSMike Gerdts }
186bc36eafdSMike Gerdts
187bc36eafdSMike Gerdts
188bc36eafdSMike Gerdts /*******************************************************************************
189bc36eafdSMike Gerdts *
190bc36eafdSMike Gerdts * FUNCTION: AcpiUtPopGenericState
191bc36eafdSMike Gerdts *
192bc36eafdSMike Gerdts * PARAMETERS: ListHead - Head of the state stack
193bc36eafdSMike Gerdts *
194bc36eafdSMike Gerdts * RETURN: The popped state object
195bc36eafdSMike Gerdts *
196bc36eafdSMike Gerdts * DESCRIPTION: Pop a state object from a state stack
197bc36eafdSMike Gerdts *
198bc36eafdSMike Gerdts ******************************************************************************/
199bc36eafdSMike Gerdts
200bc36eafdSMike Gerdts ACPI_GENERIC_STATE *
AcpiUtPopGenericState(ACPI_GENERIC_STATE ** ListHead)201bc36eafdSMike Gerdts AcpiUtPopGenericState (
202bc36eafdSMike Gerdts ACPI_GENERIC_STATE **ListHead)
203bc36eafdSMike Gerdts {
204bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State;
205bc36eafdSMike Gerdts
206bc36eafdSMike Gerdts
207bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
208bc36eafdSMike Gerdts
209bc36eafdSMike Gerdts
210bc36eafdSMike Gerdts /* Remove the state object at the head of the list (stack) */
211bc36eafdSMike Gerdts
212bc36eafdSMike Gerdts State = *ListHead;
213bc36eafdSMike Gerdts if (State)
214bc36eafdSMike Gerdts {
215bc36eafdSMike Gerdts /* Update the list head */
216bc36eafdSMike Gerdts
217bc36eafdSMike Gerdts *ListHead = State->Common.Next;
218bc36eafdSMike Gerdts }
219bc36eafdSMike Gerdts
220bc36eafdSMike Gerdts return (State);
221bc36eafdSMike Gerdts }
222bc36eafdSMike Gerdts
223bc36eafdSMike Gerdts
224bc36eafdSMike Gerdts /*******************************************************************************
225bc36eafdSMike Gerdts *
226bc36eafdSMike Gerdts * FUNCTION: AcpiUtCreateGenericState
227bc36eafdSMike Gerdts *
228bc36eafdSMike Gerdts * PARAMETERS: None
229bc36eafdSMike Gerdts *
230bc36eafdSMike Gerdts * RETURN: The new state object. NULL on failure.
231bc36eafdSMike Gerdts *
232bc36eafdSMike Gerdts * DESCRIPTION: Create a generic state object. Attempt to obtain one from
233bc36eafdSMike Gerdts * the global state cache; If none available, create a new one.
234bc36eafdSMike Gerdts *
235bc36eafdSMike Gerdts ******************************************************************************/
236bc36eafdSMike Gerdts
237bc36eafdSMike Gerdts ACPI_GENERIC_STATE *
AcpiUtCreateGenericState(void)238bc36eafdSMike Gerdts AcpiUtCreateGenericState (
239bc36eafdSMike Gerdts void)
240bc36eafdSMike Gerdts {
241bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State;
242bc36eafdSMike Gerdts
243bc36eafdSMike Gerdts
244bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
245bc36eafdSMike Gerdts
246bc36eafdSMike Gerdts
247bc36eafdSMike Gerdts State = AcpiOsAcquireObject (AcpiGbl_StateCache);
248bc36eafdSMike Gerdts if (State)
249bc36eafdSMike Gerdts {
250bc36eafdSMike Gerdts /* Initialize */
251bc36eafdSMike Gerdts State->Common.DescriptorType = ACPI_DESC_TYPE_STATE;
252bc36eafdSMike Gerdts }
253bc36eafdSMike Gerdts
254bc36eafdSMike Gerdts return (State);
255bc36eafdSMike Gerdts }
256bc36eafdSMike Gerdts
257bc36eafdSMike Gerdts
258bc36eafdSMike Gerdts /*******************************************************************************
259bc36eafdSMike Gerdts *
260bc36eafdSMike Gerdts * FUNCTION: AcpiUtCreateThreadState
261bc36eafdSMike Gerdts *
262bc36eafdSMike Gerdts * PARAMETERS: None
263bc36eafdSMike Gerdts *
264bc36eafdSMike Gerdts * RETURN: New Thread State. NULL on failure
265bc36eafdSMike Gerdts *
266bc36eafdSMike Gerdts * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used
267bc36eafdSMike Gerdts * to track per-thread info during method execution
268bc36eafdSMike Gerdts *
269bc36eafdSMike Gerdts ******************************************************************************/
270bc36eafdSMike Gerdts
271bc36eafdSMike Gerdts ACPI_THREAD_STATE *
AcpiUtCreateThreadState(void)272bc36eafdSMike Gerdts AcpiUtCreateThreadState (
273bc36eafdSMike Gerdts void)
274bc36eafdSMike Gerdts {
275bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State;
276bc36eafdSMike Gerdts
277bc36eafdSMike Gerdts
278bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
279bc36eafdSMike Gerdts
280bc36eafdSMike Gerdts
281bc36eafdSMike Gerdts /* Create the generic state object */
282bc36eafdSMike Gerdts
283bc36eafdSMike Gerdts State = AcpiUtCreateGenericState ();
284bc36eafdSMike Gerdts if (!State)
285bc36eafdSMike Gerdts {
286bc36eafdSMike Gerdts return (NULL);
287bc36eafdSMike Gerdts }
288bc36eafdSMike Gerdts
289bc36eafdSMike Gerdts /* Init fields specific to the update struct */
290bc36eafdSMike Gerdts
291bc36eafdSMike Gerdts State->Common.DescriptorType = ACPI_DESC_TYPE_STATE_THREAD;
292bc36eafdSMike Gerdts State->Thread.ThreadId = AcpiOsGetThreadId ();
293bc36eafdSMike Gerdts
294bc36eafdSMike Gerdts /* Check for invalid thread ID - zero is very bad, it will break things */
295bc36eafdSMike Gerdts
296bc36eafdSMike Gerdts if (!State->Thread.ThreadId)
297bc36eafdSMike Gerdts {
298bc36eafdSMike Gerdts ACPI_ERROR ((AE_INFO, "Invalid zero ID from AcpiOsGetThreadId"));
299bc36eafdSMike Gerdts State->Thread.ThreadId = (ACPI_THREAD_ID) 1;
300bc36eafdSMike Gerdts }
301bc36eafdSMike Gerdts
302bc36eafdSMike Gerdts return ((ACPI_THREAD_STATE *) State);
303bc36eafdSMike Gerdts }
304bc36eafdSMike Gerdts
305bc36eafdSMike Gerdts
306bc36eafdSMike Gerdts /*******************************************************************************
307bc36eafdSMike Gerdts *
308bc36eafdSMike Gerdts * FUNCTION: AcpiUtCreateUpdateState
309bc36eafdSMike Gerdts *
310bc36eafdSMike Gerdts * PARAMETERS: Object - Initial Object to be installed in the state
311bc36eafdSMike Gerdts * Action - Update action to be performed
312bc36eafdSMike Gerdts *
313bc36eafdSMike Gerdts * RETURN: New state object, null on failure
314bc36eafdSMike Gerdts *
315bc36eafdSMike Gerdts * DESCRIPTION: Create an "Update State" - a flavor of the generic state used
316bc36eafdSMike Gerdts * to update reference counts and delete complex objects such
317bc36eafdSMike Gerdts * as packages.
318bc36eafdSMike Gerdts *
319bc36eafdSMike Gerdts ******************************************************************************/
320bc36eafdSMike Gerdts
321bc36eafdSMike Gerdts ACPI_GENERIC_STATE *
AcpiUtCreateUpdateState(ACPI_OPERAND_OBJECT * Object,UINT16 Action)322bc36eafdSMike Gerdts AcpiUtCreateUpdateState (
323bc36eafdSMike Gerdts ACPI_OPERAND_OBJECT *Object,
324bc36eafdSMike Gerdts UINT16 Action)
325bc36eafdSMike Gerdts {
326bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State;
327bc36eafdSMike Gerdts
328bc36eafdSMike Gerdts
329bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
330bc36eafdSMike Gerdts
331bc36eafdSMike Gerdts
332bc36eafdSMike Gerdts /* Create the generic state object */
333bc36eafdSMike Gerdts
334bc36eafdSMike Gerdts State = AcpiUtCreateGenericState ();
335bc36eafdSMike Gerdts if (!State)
336bc36eafdSMike Gerdts {
337bc36eafdSMike Gerdts return (NULL);
338bc36eafdSMike Gerdts }
339bc36eafdSMike Gerdts
340bc36eafdSMike Gerdts /* Init fields specific to the update struct */
341bc36eafdSMike Gerdts
342bc36eafdSMike Gerdts State->Common.DescriptorType = ACPI_DESC_TYPE_STATE_UPDATE;
343bc36eafdSMike Gerdts State->Update.Object = Object;
344bc36eafdSMike Gerdts State->Update.Value = Action;
345bc36eafdSMike Gerdts return (State);
346bc36eafdSMike Gerdts }
347bc36eafdSMike Gerdts
348bc36eafdSMike Gerdts
349bc36eafdSMike Gerdts /*******************************************************************************
350bc36eafdSMike Gerdts *
351bc36eafdSMike Gerdts * FUNCTION: AcpiUtCreatePkgState
352bc36eafdSMike Gerdts *
353bc36eafdSMike Gerdts * PARAMETERS: Object - Initial Object to be installed in the state
354bc36eafdSMike Gerdts * Action - Update action to be performed
355bc36eafdSMike Gerdts *
356bc36eafdSMike Gerdts * RETURN: New state object, null on failure
357bc36eafdSMike Gerdts *
358bc36eafdSMike Gerdts * DESCRIPTION: Create a "Package State"
359bc36eafdSMike Gerdts *
360bc36eafdSMike Gerdts ******************************************************************************/
361bc36eafdSMike Gerdts
362bc36eafdSMike Gerdts ACPI_GENERIC_STATE *
AcpiUtCreatePkgState(void * InternalObject,void * ExternalObject,UINT32 Index)363bc36eafdSMike Gerdts AcpiUtCreatePkgState (
364bc36eafdSMike Gerdts void *InternalObject,
365bc36eafdSMike Gerdts void *ExternalObject,
366*35786f68SRobert Mustacchi UINT32 Index)
367bc36eafdSMike Gerdts {
368bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State;
369bc36eafdSMike Gerdts
370bc36eafdSMike Gerdts
371bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
372bc36eafdSMike Gerdts
373bc36eafdSMike Gerdts
374bc36eafdSMike Gerdts /* Create the generic state object */
375bc36eafdSMike Gerdts
376bc36eafdSMike Gerdts State = AcpiUtCreateGenericState ();
377bc36eafdSMike Gerdts if (!State)
378bc36eafdSMike Gerdts {
379bc36eafdSMike Gerdts return (NULL);
380bc36eafdSMike Gerdts }
381bc36eafdSMike Gerdts
382bc36eafdSMike Gerdts /* Init fields specific to the update struct */
383bc36eafdSMike Gerdts
384bc36eafdSMike Gerdts State->Common.DescriptorType = ACPI_DESC_TYPE_STATE_PACKAGE;
385bc36eafdSMike Gerdts State->Pkg.SourceObject = (ACPI_OPERAND_OBJECT *) InternalObject;
386bc36eafdSMike Gerdts State->Pkg.DestObject = ExternalObject;
387bc36eafdSMike Gerdts State->Pkg.Index= Index;
388bc36eafdSMike Gerdts State->Pkg.NumPackages = 1;
389bc36eafdSMike Gerdts
390bc36eafdSMike Gerdts return (State);
391bc36eafdSMike Gerdts }
392bc36eafdSMike Gerdts
393bc36eafdSMike Gerdts
394bc36eafdSMike Gerdts /*******************************************************************************
395bc36eafdSMike Gerdts *
396bc36eafdSMike Gerdts * FUNCTION: AcpiUtCreateControlState
397bc36eafdSMike Gerdts *
398bc36eafdSMike Gerdts * PARAMETERS: None
399bc36eafdSMike Gerdts *
400bc36eafdSMike Gerdts * RETURN: New state object, null on failure
401bc36eafdSMike Gerdts *
402bc36eafdSMike Gerdts * DESCRIPTION: Create a "Control State" - a flavor of the generic state used
403bc36eafdSMike Gerdts * to support nested IF/WHILE constructs in the AML.
404bc36eafdSMike Gerdts *
405bc36eafdSMike Gerdts ******************************************************************************/
406bc36eafdSMike Gerdts
407bc36eafdSMike Gerdts ACPI_GENERIC_STATE *
AcpiUtCreateControlState(void)408bc36eafdSMike Gerdts AcpiUtCreateControlState (
409bc36eafdSMike Gerdts void)
410bc36eafdSMike Gerdts {
411bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State;
412bc36eafdSMike Gerdts
413bc36eafdSMike Gerdts
414bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
415bc36eafdSMike Gerdts
416bc36eafdSMike Gerdts
417bc36eafdSMike Gerdts /* Create the generic state object */
418bc36eafdSMike Gerdts
419bc36eafdSMike Gerdts State = AcpiUtCreateGenericState ();
420bc36eafdSMike Gerdts if (!State)
421bc36eafdSMike Gerdts {
422bc36eafdSMike Gerdts return (NULL);
423bc36eafdSMike Gerdts }
424bc36eafdSMike Gerdts
425bc36eafdSMike Gerdts /* Init fields specific to the control struct */
426bc36eafdSMike Gerdts
427bc36eafdSMike Gerdts State->Common.DescriptorType = ACPI_DESC_TYPE_STATE_CONTROL;
428bc36eafdSMike Gerdts State->Common.State = ACPI_CONTROL_CONDITIONAL_EXECUTING;
429bc36eafdSMike Gerdts
430bc36eafdSMike Gerdts return (State);
431bc36eafdSMike Gerdts }
432bc36eafdSMike Gerdts
433bc36eafdSMike Gerdts
434bc36eafdSMike Gerdts /*******************************************************************************
435bc36eafdSMike Gerdts *
436bc36eafdSMike Gerdts * FUNCTION: AcpiUtDeleteGenericState
437bc36eafdSMike Gerdts *
438bc36eafdSMike Gerdts * PARAMETERS: State - The state object to be deleted
439bc36eafdSMike Gerdts *
440bc36eafdSMike Gerdts * RETURN: None
441bc36eafdSMike Gerdts *
442bc36eafdSMike Gerdts * DESCRIPTION: Release a state object to the state cache. NULL state objects
443bc36eafdSMike Gerdts * are ignored.
444bc36eafdSMike Gerdts *
445bc36eafdSMike Gerdts ******************************************************************************/
446bc36eafdSMike Gerdts
447bc36eafdSMike Gerdts void
AcpiUtDeleteGenericState(ACPI_GENERIC_STATE * State)448bc36eafdSMike Gerdts AcpiUtDeleteGenericState (
449bc36eafdSMike Gerdts ACPI_GENERIC_STATE *State)
450bc36eafdSMike Gerdts {
451bc36eafdSMike Gerdts ACPI_FUNCTION_ENTRY ();
452bc36eafdSMike Gerdts
453bc36eafdSMike Gerdts
454bc36eafdSMike Gerdts /* Ignore null state */
455bc36eafdSMike Gerdts
456bc36eafdSMike Gerdts if (State)
457bc36eafdSMike Gerdts {
458bc36eafdSMike Gerdts (void) AcpiOsReleaseObject (AcpiGbl_StateCache, State);
459bc36eafdSMike Gerdts }
460bc36eafdSMike Gerdts
461bc36eafdSMike Gerdts return;
462bc36eafdSMike Gerdts }
463