17c478bd9Sstevel@tonic-gate /******************************************************************************
27c478bd9Sstevel@tonic-gate *
37c478bd9Sstevel@tonic-gate * Module Name: exsystem - Interface to OS services
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
1527c478bd9Sstevel@tonic-gate #include "acpi.h"
153aa2aa9a6SDana Myers #include "accommon.h"
1547c478bd9Sstevel@tonic-gate #include "acinterp.h"
1557c478bd9Sstevel@tonic-gate
1567c478bd9Sstevel@tonic-gate #define _COMPONENT ACPI_EXECUTER
1577c478bd9Sstevel@tonic-gate ACPI_MODULE_NAME ("exsystem")
1587c478bd9Sstevel@tonic-gate
1597c478bd9Sstevel@tonic-gate
1607c478bd9Sstevel@tonic-gate /*******************************************************************************
1617c478bd9Sstevel@tonic-gate *
1627c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExSystemWaitSemaphore
1637c478bd9Sstevel@tonic-gate *
1647c478bd9Sstevel@tonic-gate * PARAMETERS: Semaphore - Semaphore to wait on
1657c478bd9Sstevel@tonic-gate * Timeout - Max time to wait
1667c478bd9Sstevel@tonic-gate *
1677c478bd9Sstevel@tonic-gate * RETURN: Status
1687c478bd9Sstevel@tonic-gate *
1697c478bd9Sstevel@tonic-gate * DESCRIPTION: Implements a semaphore wait with a check to see if the
1707b1019a6SJerry Jelinek * semaphore is available immediately. If it is not, the
17127f7c583Smyers * interpreter is released before waiting.
1727c478bd9Sstevel@tonic-gate *
1737c478bd9Sstevel@tonic-gate ******************************************************************************/
1747c478bd9Sstevel@tonic-gate
1757c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExSystemWaitSemaphore(ACPI_SEMAPHORE Semaphore,UINT16 Timeout)1767c478bd9Sstevel@tonic-gate AcpiExSystemWaitSemaphore (
17727f7c583Smyers ACPI_SEMAPHORE Semaphore,
1787c478bd9Sstevel@tonic-gate UINT16 Timeout)
1797c478bd9Sstevel@tonic-gate {
1807c478bd9Sstevel@tonic-gate ACPI_STATUS Status;
1817c478bd9Sstevel@tonic-gate
1827c478bd9Sstevel@tonic-gate
18327f7c583Smyers ACPI_FUNCTION_TRACE (ExSystemWaitSemaphore);
1847c478bd9Sstevel@tonic-gate
1857c478bd9Sstevel@tonic-gate
18627f7c583Smyers Status = AcpiOsWaitSemaphore (Semaphore, 1, ACPI_DO_NOT_WAIT);
1877c478bd9Sstevel@tonic-gate if (ACPI_SUCCESS (Status))
1887c478bd9Sstevel@tonic-gate {
1897c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
1907c478bd9Sstevel@tonic-gate }
1917c478bd9Sstevel@tonic-gate
1927c478bd9Sstevel@tonic-gate if (Status == AE_TIME)
1937c478bd9Sstevel@tonic-gate {
1947c478bd9Sstevel@tonic-gate /* We must wait, so unlock the interpreter */
1957c478bd9Sstevel@tonic-gate
1967b1019a6SJerry Jelinek AcpiExExitInterpreter ();
1977c478bd9Sstevel@tonic-gate Status = AcpiOsWaitSemaphore (Semaphore, 1, Timeout);
1987c478bd9Sstevel@tonic-gate
1997c478bd9Sstevel@tonic-gate ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
2007c478bd9Sstevel@tonic-gate "*** Thread awake after blocking, %s\n",
2017c478bd9Sstevel@tonic-gate AcpiFormatException (Status)));
2027c478bd9Sstevel@tonic-gate
2037c478bd9Sstevel@tonic-gate /* Reacquire the interpreter */
2047c478bd9Sstevel@tonic-gate
2057b1019a6SJerry Jelinek AcpiExEnterInterpreter ();
2067c478bd9Sstevel@tonic-gate }
2077c478bd9Sstevel@tonic-gate
2087c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
2097c478bd9Sstevel@tonic-gate }
2107c478bd9Sstevel@tonic-gate
2117c478bd9Sstevel@tonic-gate
21227f7c583Smyers /*******************************************************************************
21327f7c583Smyers *
21427f7c583Smyers * FUNCTION: AcpiExSystemWaitMutex
21527f7c583Smyers *
21627f7c583Smyers * PARAMETERS: Mutex - Mutex to wait on
21727f7c583Smyers * Timeout - Max time to wait
21827f7c583Smyers *
21927f7c583Smyers * RETURN: Status
22027f7c583Smyers *
22127f7c583Smyers * DESCRIPTION: Implements a mutex wait with a check to see if the
2227b1019a6SJerry Jelinek * mutex is available immediately. If it is not, the
22327f7c583Smyers * interpreter is released before waiting.
22427f7c583Smyers *
22527f7c583Smyers ******************************************************************************/
22627f7c583Smyers
22727f7c583Smyers ACPI_STATUS
AcpiExSystemWaitMutex(ACPI_MUTEX Mutex,UINT16 Timeout)22827f7c583Smyers AcpiExSystemWaitMutex (
22927f7c583Smyers ACPI_MUTEX Mutex,
23027f7c583Smyers UINT16 Timeout)
23127f7c583Smyers {
23227f7c583Smyers ACPI_STATUS Status;
23327f7c583Smyers
23427f7c583Smyers
23527f7c583Smyers ACPI_FUNCTION_TRACE (ExSystemWaitMutex);
23627f7c583Smyers
23727f7c583Smyers
23827f7c583Smyers Status = AcpiOsAcquireMutex (Mutex, ACPI_DO_NOT_WAIT);
23927f7c583Smyers if (ACPI_SUCCESS (Status))
24027f7c583Smyers {
24127f7c583Smyers return_ACPI_STATUS (Status);
24227f7c583Smyers }
24327f7c583Smyers
24427f7c583Smyers if (Status == AE_TIME)
24527f7c583Smyers {
24627f7c583Smyers /* We must wait, so unlock the interpreter */
24727f7c583Smyers
2487b1019a6SJerry Jelinek AcpiExExitInterpreter ();
24927f7c583Smyers Status = AcpiOsAcquireMutex (Mutex, Timeout);
25027f7c583Smyers
25127f7c583Smyers ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
25227f7c583Smyers "*** Thread awake after blocking, %s\n",
25327f7c583Smyers AcpiFormatException (Status)));
25427f7c583Smyers
25527f7c583Smyers /* Reacquire the interpreter */
25627f7c583Smyers
2577b1019a6SJerry Jelinek AcpiExEnterInterpreter ();
25827f7c583Smyers }
25927f7c583Smyers
26027f7c583Smyers return_ACPI_STATUS (Status);
26127f7c583Smyers }
26227f7c583Smyers
26327f7c583Smyers
2647c478bd9Sstevel@tonic-gate /*******************************************************************************
2657c478bd9Sstevel@tonic-gate *
2667c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExSystemDoStall
2677c478bd9Sstevel@tonic-gate *
2687c478bd9Sstevel@tonic-gate * PARAMETERS: HowLong - The amount of time to stall,
2697c478bd9Sstevel@tonic-gate * in microseconds
2707c478bd9Sstevel@tonic-gate *
2717c478bd9Sstevel@tonic-gate * RETURN: Status
2727c478bd9Sstevel@tonic-gate *
2737c478bd9Sstevel@tonic-gate * DESCRIPTION: Suspend running thread for specified amount of time.
2747c478bd9Sstevel@tonic-gate * Note: ACPI specification requires that Stall() does not
2757c478bd9Sstevel@tonic-gate * relinquish the processor, and delays longer than 100 usec
2767b1019a6SJerry Jelinek * should use Sleep() instead. We allow stalls up to 255 usec
2777c478bd9Sstevel@tonic-gate * for compatibility with other interpreters and existing BIOSs.
2787c478bd9Sstevel@tonic-gate *
2797c478bd9Sstevel@tonic-gate ******************************************************************************/
2807c478bd9Sstevel@tonic-gate
2817c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExSystemDoStall(UINT32 HowLong)2827c478bd9Sstevel@tonic-gate AcpiExSystemDoStall (
2837c478bd9Sstevel@tonic-gate UINT32 HowLong)
2847c478bd9Sstevel@tonic-gate {
2857c478bd9Sstevel@tonic-gate ACPI_STATUS Status = AE_OK;
2867c478bd9Sstevel@tonic-gate
2877c478bd9Sstevel@tonic-gate
2887c478bd9Sstevel@tonic-gate ACPI_FUNCTION_ENTRY ();
2897c478bd9Sstevel@tonic-gate
2907c478bd9Sstevel@tonic-gate
2917c478bd9Sstevel@tonic-gate if (HowLong > 255) /* 255 microseconds */
2927c478bd9Sstevel@tonic-gate {
2937c478bd9Sstevel@tonic-gate /*
2947c478bd9Sstevel@tonic-gate * Longer than 255 usec, this is an error
2957c478bd9Sstevel@tonic-gate *
2967c478bd9Sstevel@tonic-gate * (ACPI specifies 100 usec as max, but this gives some slack in
2977c478bd9Sstevel@tonic-gate * order to support existing BIOSs)
2987c478bd9Sstevel@tonic-gate */
2997b1019a6SJerry Jelinek ACPI_ERROR ((AE_INFO,
3007b1019a6SJerry Jelinek "Time parameter is too large (%u)", HowLong));
3017c478bd9Sstevel@tonic-gate Status = AE_AML_OPERAND_VALUE;
3027c478bd9Sstevel@tonic-gate }
3037c478bd9Sstevel@tonic-gate else
3047c478bd9Sstevel@tonic-gate {
3057c478bd9Sstevel@tonic-gate AcpiOsStall (HowLong);
3067c478bd9Sstevel@tonic-gate }
3077c478bd9Sstevel@tonic-gate
3087c478bd9Sstevel@tonic-gate return (Status);
3097c478bd9Sstevel@tonic-gate }
3107c478bd9Sstevel@tonic-gate
3117c478bd9Sstevel@tonic-gate
3127c478bd9Sstevel@tonic-gate /*******************************************************************************
3137c478bd9Sstevel@tonic-gate *
31426f3cdf0SGordon Ross * FUNCTION: AcpiExSystemDoSleep
3157c478bd9Sstevel@tonic-gate *
31626f3cdf0SGordon Ross * PARAMETERS: HowLong - The amount of time to sleep,
3177c478bd9Sstevel@tonic-gate * in milliseconds
3187c478bd9Sstevel@tonic-gate *
3197c478bd9Sstevel@tonic-gate * RETURN: None
3207c478bd9Sstevel@tonic-gate *
32126f3cdf0SGordon Ross * DESCRIPTION: Sleep the running thread for specified amount of time.
3227c478bd9Sstevel@tonic-gate *
3237c478bd9Sstevel@tonic-gate ******************************************************************************/
3247c478bd9Sstevel@tonic-gate
3257c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExSystemDoSleep(UINT64 HowLong)32626f3cdf0SGordon Ross AcpiExSystemDoSleep (
32726f3cdf0SGordon Ross UINT64 HowLong)
3287c478bd9Sstevel@tonic-gate {
3297c478bd9Sstevel@tonic-gate ACPI_FUNCTION_ENTRY ();
3307c478bd9Sstevel@tonic-gate
3317c478bd9Sstevel@tonic-gate
3327c478bd9Sstevel@tonic-gate /* Since this thread will sleep, we must release the interpreter */
3337c478bd9Sstevel@tonic-gate
3347b1019a6SJerry Jelinek AcpiExExitInterpreter ();
3357c478bd9Sstevel@tonic-gate
33626f3cdf0SGordon Ross /*
33726f3cdf0SGordon Ross * For compatibility with other ACPI implementations and to prevent
33826f3cdf0SGordon Ross * accidental deep sleeps, limit the sleep time to something reasonable.
33926f3cdf0SGordon Ross */
34026f3cdf0SGordon Ross if (HowLong > ACPI_MAX_SLEEP)
34126f3cdf0SGordon Ross {
34226f3cdf0SGordon Ross HowLong = ACPI_MAX_SLEEP;
34326f3cdf0SGordon Ross }
34426f3cdf0SGordon Ross
3457c478bd9Sstevel@tonic-gate AcpiOsSleep (HowLong);
3467c478bd9Sstevel@tonic-gate
3477c478bd9Sstevel@tonic-gate /* And now we must get the interpreter again */
3487c478bd9Sstevel@tonic-gate
3497b1019a6SJerry Jelinek AcpiExEnterInterpreter ();
350db2bae30SDana Myers return (AE_OK);
3517c478bd9Sstevel@tonic-gate }
3527c478bd9Sstevel@tonic-gate
3537c478bd9Sstevel@tonic-gate
3547c478bd9Sstevel@tonic-gate /*******************************************************************************
3557c478bd9Sstevel@tonic-gate *
3567c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExSystemSignalEvent
3577c478bd9Sstevel@tonic-gate *
3587c478bd9Sstevel@tonic-gate * PARAMETERS: ObjDesc - The object descriptor for this op
3597c478bd9Sstevel@tonic-gate *
3607c478bd9Sstevel@tonic-gate * RETURN: Status
3617c478bd9Sstevel@tonic-gate *
3627c478bd9Sstevel@tonic-gate * DESCRIPTION: Provides an access point to perform synchronization operations
3637c478bd9Sstevel@tonic-gate * within the AML.
3647c478bd9Sstevel@tonic-gate *
3657c478bd9Sstevel@tonic-gate ******************************************************************************/
3667c478bd9Sstevel@tonic-gate
3677c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExSystemSignalEvent(ACPI_OPERAND_OBJECT * ObjDesc)3687c478bd9Sstevel@tonic-gate AcpiExSystemSignalEvent (
3697c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc)
3707c478bd9Sstevel@tonic-gate {
3717c478bd9Sstevel@tonic-gate ACPI_STATUS Status = AE_OK;
3727c478bd9Sstevel@tonic-gate
3737c478bd9Sstevel@tonic-gate
37427f7c583Smyers ACPI_FUNCTION_TRACE (ExSystemSignalEvent);
3757c478bd9Sstevel@tonic-gate
3767c478bd9Sstevel@tonic-gate
3777c478bd9Sstevel@tonic-gate if (ObjDesc)
3787c478bd9Sstevel@tonic-gate {
37927f7c583Smyers Status = AcpiOsSignalSemaphore (ObjDesc->Event.OsSemaphore, 1);
3807c478bd9Sstevel@tonic-gate }
3817c478bd9Sstevel@tonic-gate
3827c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
3837c478bd9Sstevel@tonic-gate }
3847c478bd9Sstevel@tonic-gate
3857c478bd9Sstevel@tonic-gate
3867c478bd9Sstevel@tonic-gate /*******************************************************************************
3877c478bd9Sstevel@tonic-gate *
3887c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExSystemWaitEvent
3897c478bd9Sstevel@tonic-gate *
3907c478bd9Sstevel@tonic-gate * PARAMETERS: TimeDesc - The 'time to delay' object descriptor
3917c478bd9Sstevel@tonic-gate * ObjDesc - The object descriptor for this op
3927c478bd9Sstevel@tonic-gate *
3937c478bd9Sstevel@tonic-gate * RETURN: Status
3947c478bd9Sstevel@tonic-gate *
3957c478bd9Sstevel@tonic-gate * DESCRIPTION: Provides an access point to perform synchronization operations
3967b1019a6SJerry Jelinek * within the AML. This operation is a request to wait for an
3977c478bd9Sstevel@tonic-gate * event.
3987c478bd9Sstevel@tonic-gate *
3997c478bd9Sstevel@tonic-gate ******************************************************************************/
4007c478bd9Sstevel@tonic-gate
4017c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExSystemWaitEvent(ACPI_OPERAND_OBJECT * TimeDesc,ACPI_OPERAND_OBJECT * ObjDesc)4027c478bd9Sstevel@tonic-gate AcpiExSystemWaitEvent (
4037c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *TimeDesc,
4047c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc)
4057c478bd9Sstevel@tonic-gate {
4067c478bd9Sstevel@tonic-gate ACPI_STATUS Status = AE_OK;
4077c478bd9Sstevel@tonic-gate
4087c478bd9Sstevel@tonic-gate
40927f7c583Smyers ACPI_FUNCTION_TRACE (ExSystemWaitEvent);
4107c478bd9Sstevel@tonic-gate
4117c478bd9Sstevel@tonic-gate
4127c478bd9Sstevel@tonic-gate if (ObjDesc)
4137c478bd9Sstevel@tonic-gate {
41427f7c583Smyers Status = AcpiExSystemWaitSemaphore (ObjDesc->Event.OsSemaphore,
4157b1019a6SJerry Jelinek (UINT16) TimeDesc->Integer.Value);
4167c478bd9Sstevel@tonic-gate }
4177c478bd9Sstevel@tonic-gate
4187c478bd9Sstevel@tonic-gate return_ACPI_STATUS (Status);
4197c478bd9Sstevel@tonic-gate }
4207c478bd9Sstevel@tonic-gate
4217c478bd9Sstevel@tonic-gate
4227c478bd9Sstevel@tonic-gate /*******************************************************************************
4237c478bd9Sstevel@tonic-gate *
4247c478bd9Sstevel@tonic-gate * FUNCTION: AcpiExSystemResetEvent
4257c478bd9Sstevel@tonic-gate *
4267c478bd9Sstevel@tonic-gate * PARAMETERS: ObjDesc - The object descriptor for this op
4277c478bd9Sstevel@tonic-gate *
4287c478bd9Sstevel@tonic-gate * RETURN: Status
4297c478bd9Sstevel@tonic-gate *
4307c478bd9Sstevel@tonic-gate * DESCRIPTION: Reset an event to a known state.
4317c478bd9Sstevel@tonic-gate *
4327c478bd9Sstevel@tonic-gate ******************************************************************************/
4337c478bd9Sstevel@tonic-gate
4347c478bd9Sstevel@tonic-gate ACPI_STATUS
AcpiExSystemResetEvent(ACPI_OPERAND_OBJECT * ObjDesc)4357c478bd9Sstevel@tonic-gate AcpiExSystemResetEvent (
4367c478bd9Sstevel@tonic-gate ACPI_OPERAND_OBJECT *ObjDesc)
4377c478bd9Sstevel@tonic-gate {
4387c478bd9Sstevel@tonic-gate ACPI_STATUS Status = AE_OK;
43927f7c583Smyers ACPI_SEMAPHORE TempSemaphore;
4407c478bd9Sstevel@tonic-gate
4417c478bd9Sstevel@tonic-gate
4427c478bd9Sstevel@tonic-gate ACPI_FUNCTION_ENTRY ();
4437c478bd9Sstevel@tonic-gate
4447c478bd9Sstevel@tonic-gate
4457c478bd9Sstevel@tonic-gate /*
4467c478bd9Sstevel@tonic-gate * We are going to simply delete the existing semaphore and
4477c478bd9Sstevel@tonic-gate * create a new one!
4487c478bd9Sstevel@tonic-gate */
4497c478bd9Sstevel@tonic-gate Status = AcpiOsCreateSemaphore (ACPI_NO_UNIT_LIMIT, 0, &TempSemaphore);
4507c478bd9Sstevel@tonic-gate if (ACPI_SUCCESS (Status))
4517c478bd9Sstevel@tonic-gate {
45227f7c583Smyers (void) AcpiOsDeleteSemaphore (ObjDesc->Event.OsSemaphore);
45327f7c583Smyers ObjDesc->Event.OsSemaphore = TempSemaphore;
4547c478bd9Sstevel@tonic-gate }
4557c478bd9Sstevel@tonic-gate
4567c478bd9Sstevel@tonic-gate return (Status);
4577c478bd9Sstevel@tonic-gate }
458