17b1019a6SJerry Jelinek /******************************************************************************
27b1019a6SJerry Jelinek *
37b1019a6SJerry Jelinek * Name: hwesleep.c - ACPI Hardware Sleep/Wake Support functions for the
47b1019a6SJerry Jelinek * extended FADT-V5 sleep registers.
57b1019a6SJerry Jelinek *
67b1019a6SJerry Jelinek *****************************************************************************/
77b1019a6SJerry Jelinek
8*35786f68SRobert Mustacchi /******************************************************************************
9*35786f68SRobert Mustacchi *
10*35786f68SRobert Mustacchi * 1. Copyright Notice
11*35786f68SRobert Mustacchi *
12*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
137b1019a6SJerry Jelinek * All rights reserved.
147b1019a6SJerry Jelinek *
15*35786f68SRobert Mustacchi * 2. License
16*35786f68SRobert Mustacchi *
17*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
18*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
19*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
20*35786f68SRobert Mustacchi * property rights.
21*35786f68SRobert Mustacchi *
22*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
24*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
26*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
27*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
28*35786f68SRobert Mustacchi *
29*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
31*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
32*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
33*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
34*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
35*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
36*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
37*35786f68SRobert Mustacchi *
38*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
39*35786f68SRobert Mustacchi * conditions are met:
40*35786f68SRobert Mustacchi *
41*35786f68SRobert Mustacchi * 3. Conditions
42*35786f68SRobert Mustacchi *
43*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
45*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
46*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
47*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
48*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
49*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
50*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
51*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
52*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
53*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
54*35786f68SRobert Mustacchi *
55*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
57*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
58*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
59*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
60*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
61*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
62*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
63*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
64*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
65*35786f68SRobert Mustacchi * make.
66*35786f68SRobert Mustacchi *
67*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
68*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
69*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
70*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
71*35786f68SRobert Mustacchi * distribution.
72*35786f68SRobert Mustacchi *
73*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
74*35786f68SRobert Mustacchi * Intel Code.
75*35786f68SRobert Mustacchi *
76*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
78*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
79*35786f68SRobert Mustacchi * without prior written authorization from Intel.
80*35786f68SRobert Mustacchi *
81*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
82*35786f68SRobert Mustacchi *
83*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
90*35786f68SRobert Mustacchi *
91*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98*35786f68SRobert Mustacchi * LIMITED REMEDY.
99*35786f68SRobert Mustacchi *
100*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
101*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
102*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
103*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
104*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
105*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
106*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
107*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
108*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
110*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
111*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
112*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
113*35786f68SRobert Mustacchi * such license, approval or letter.
114*35786f68SRobert Mustacchi *
115*35786f68SRobert Mustacchi *****************************************************************************
116*35786f68SRobert Mustacchi *
117*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
118*35786f68SRobert Mustacchi * following license:
119*35786f68SRobert Mustacchi *
1207b1019a6SJerry Jelinek * Redistribution and use in source and binary forms, with or without
1217b1019a6SJerry Jelinek * modification, are permitted provided that the following conditions
1227b1019a6SJerry Jelinek * are met:
1237b1019a6SJerry Jelinek * 1. Redistributions of source code must retain the above copyright
1247b1019a6SJerry Jelinek * notice, this list of conditions, and the following disclaimer,
1257b1019a6SJerry Jelinek * without modification.
1267b1019a6SJerry Jelinek * 2. Redistributions in binary form must reproduce at minimum a disclaimer
1277b1019a6SJerry Jelinek * substantially similar to the "NO WARRANTY" disclaimer below
1287b1019a6SJerry Jelinek * ("Disclaimer") and any redistribution must be conditioned upon
1297b1019a6SJerry Jelinek * including a substantially similar Disclaimer requirement for further
1307b1019a6SJerry Jelinek * binary redistribution.
1317b1019a6SJerry Jelinek * 3. Neither the names of the above-listed copyright holders nor the names
1327b1019a6SJerry Jelinek * of any contributors may be used to endorse or promote products derived
1337b1019a6SJerry Jelinek * from this software without specific prior written permission.
1347b1019a6SJerry Jelinek *
1357b1019a6SJerry Jelinek * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1367b1019a6SJerry Jelinek * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1387b1019a6SJerry Jelinek * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146*35786f68SRobert Mustacchi *
147*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
148*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
149*35786f68SRobert Mustacchi * Software Foundation.
150*35786f68SRobert Mustacchi *
151*35786f68SRobert Mustacchi *****************************************************************************/
1527b1019a6SJerry Jelinek
1537b1019a6SJerry Jelinek #include "acpi.h"
1547b1019a6SJerry Jelinek #include "accommon.h"
1557b1019a6SJerry Jelinek
1567b1019a6SJerry Jelinek #define _COMPONENT ACPI_HARDWARE
1577b1019a6SJerry Jelinek ACPI_MODULE_NAME ("hwesleep")
1587b1019a6SJerry Jelinek
1597b1019a6SJerry Jelinek
1607b1019a6SJerry Jelinek /*******************************************************************************
1617b1019a6SJerry Jelinek *
1627b1019a6SJerry Jelinek * FUNCTION: AcpiHwExecuteSleepMethod
1637b1019a6SJerry Jelinek *
1647b1019a6SJerry Jelinek * PARAMETERS: MethodPathname - Pathname of method to execute
1657b1019a6SJerry Jelinek * IntegerArgument - Argument to pass to the method
1667b1019a6SJerry Jelinek *
1677b1019a6SJerry Jelinek * RETURN: None
1687b1019a6SJerry Jelinek *
1697b1019a6SJerry Jelinek * DESCRIPTION: Execute a sleep/wake related method with one integer argument
1707b1019a6SJerry Jelinek * and no return value.
1717b1019a6SJerry Jelinek *
1727b1019a6SJerry Jelinek ******************************************************************************/
1737b1019a6SJerry Jelinek
1747b1019a6SJerry Jelinek void
AcpiHwExecuteSleepMethod(char * MethodPathname,UINT32 IntegerArgument)1757b1019a6SJerry Jelinek AcpiHwExecuteSleepMethod (
1767b1019a6SJerry Jelinek char *MethodPathname,
1777b1019a6SJerry Jelinek UINT32 IntegerArgument)
1787b1019a6SJerry Jelinek {
1797b1019a6SJerry Jelinek ACPI_OBJECT_LIST ArgList;
1807b1019a6SJerry Jelinek ACPI_OBJECT Arg;
1817b1019a6SJerry Jelinek ACPI_STATUS Status;
1827b1019a6SJerry Jelinek
1837b1019a6SJerry Jelinek
1847b1019a6SJerry Jelinek ACPI_FUNCTION_TRACE (HwExecuteSleepMethod);
1857b1019a6SJerry Jelinek
1867b1019a6SJerry Jelinek
1877b1019a6SJerry Jelinek /* One argument, IntegerArgument; No return value expected */
1887b1019a6SJerry Jelinek
1897b1019a6SJerry Jelinek ArgList.Count = 1;
1907b1019a6SJerry Jelinek ArgList.Pointer = &Arg;
1917b1019a6SJerry Jelinek Arg.Type = ACPI_TYPE_INTEGER;
1927b1019a6SJerry Jelinek Arg.Integer.Value = (UINT64) IntegerArgument;
1937b1019a6SJerry Jelinek
1947b1019a6SJerry Jelinek Status = AcpiEvaluateObject (NULL, MethodPathname, &ArgList, NULL);
1957b1019a6SJerry Jelinek if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
1967b1019a6SJerry Jelinek {
1977b1019a6SJerry Jelinek ACPI_EXCEPTION ((AE_INFO, Status, "While executing method %s",
1987b1019a6SJerry Jelinek MethodPathname));
1997b1019a6SJerry Jelinek }
2007b1019a6SJerry Jelinek
2017b1019a6SJerry Jelinek return_VOID;
2027b1019a6SJerry Jelinek }
2037b1019a6SJerry Jelinek
2047b1019a6SJerry Jelinek
2057b1019a6SJerry Jelinek /*******************************************************************************
2067b1019a6SJerry Jelinek *
2077b1019a6SJerry Jelinek * FUNCTION: AcpiHwExtendedSleep
2087b1019a6SJerry Jelinek *
2097b1019a6SJerry Jelinek * PARAMETERS: SleepState - Which sleep state to enter
2107b1019a6SJerry Jelinek *
2117b1019a6SJerry Jelinek * RETURN: Status
2127b1019a6SJerry Jelinek *
2137b1019a6SJerry Jelinek * DESCRIPTION: Enter a system sleep state via the extended FADT sleep
2147b1019a6SJerry Jelinek * registers (V5 FADT).
2157b1019a6SJerry Jelinek * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
2167b1019a6SJerry Jelinek *
2177b1019a6SJerry Jelinek ******************************************************************************/
2187b1019a6SJerry Jelinek
2197b1019a6SJerry Jelinek ACPI_STATUS
AcpiHwExtendedSleep(UINT8 SleepState)2207b1019a6SJerry Jelinek AcpiHwExtendedSleep (
2217b1019a6SJerry Jelinek UINT8 SleepState)
2227b1019a6SJerry Jelinek {
2237b1019a6SJerry Jelinek ACPI_STATUS Status;
224*35786f68SRobert Mustacchi UINT8 SleepControl;
2257b1019a6SJerry Jelinek UINT64 SleepStatus;
2267b1019a6SJerry Jelinek
2277b1019a6SJerry Jelinek
2287b1019a6SJerry Jelinek ACPI_FUNCTION_TRACE (HwExtendedSleep);
2297b1019a6SJerry Jelinek
2307b1019a6SJerry Jelinek
2317b1019a6SJerry Jelinek /* Extended sleep registers must be valid */
2327b1019a6SJerry Jelinek
2337b1019a6SJerry Jelinek if (!AcpiGbl_FADT.SleepControl.Address ||
2347b1019a6SJerry Jelinek !AcpiGbl_FADT.SleepStatus.Address)
2357b1019a6SJerry Jelinek {
2367b1019a6SJerry Jelinek return_ACPI_STATUS (AE_NOT_EXIST);
2377b1019a6SJerry Jelinek }
2387b1019a6SJerry Jelinek
2397b1019a6SJerry Jelinek /* Clear wake status (WAK_STS) */
2407b1019a6SJerry Jelinek
2417b1019a6SJerry Jelinek Status = AcpiWrite ((UINT64) ACPI_X_WAKE_STATUS,
2427b1019a6SJerry Jelinek &AcpiGbl_FADT.SleepStatus);
2437b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
2447b1019a6SJerry Jelinek {
2457b1019a6SJerry Jelinek return_ACPI_STATUS (Status);
2467b1019a6SJerry Jelinek }
2477b1019a6SJerry Jelinek
2487b1019a6SJerry Jelinek AcpiGbl_SystemAwakeAndRunning = FALSE;
2497b1019a6SJerry Jelinek
2507b1019a6SJerry Jelinek /*
2517b1019a6SJerry Jelinek * Set the SLP_TYP and SLP_EN bits.
2527b1019a6SJerry Jelinek *
2537b1019a6SJerry Jelinek * Note: We only use the first value returned by the \_Sx method
2547b1019a6SJerry Jelinek * (AcpiGbl_SleepTypeA) - As per ACPI specification.
2557b1019a6SJerry Jelinek */
2567b1019a6SJerry Jelinek ACPI_DEBUG_PRINT ((ACPI_DB_INIT,
2577b1019a6SJerry Jelinek "Entering sleep state [S%u]\n", SleepState));
2587b1019a6SJerry Jelinek
259*35786f68SRobert Mustacchi SleepControl = ((AcpiGbl_SleepTypeA << ACPI_X_SLEEP_TYPE_POSITION) &
260*35786f68SRobert Mustacchi ACPI_X_SLEEP_TYPE_MASK) | ACPI_X_SLEEP_ENABLE;
261*35786f68SRobert Mustacchi
262*35786f68SRobert Mustacchi /* Flush caches, as per ACPI specification */
263*35786f68SRobert Mustacchi
264*35786f68SRobert Mustacchi ACPI_FLUSH_CPU_CACHE ();
265*35786f68SRobert Mustacchi
266*35786f68SRobert Mustacchi Status = AcpiOsEnterSleep (SleepState, SleepControl, 0);
267*35786f68SRobert Mustacchi if (Status == AE_CTRL_TERMINATE)
268*35786f68SRobert Mustacchi {
269*35786f68SRobert Mustacchi return_ACPI_STATUS (AE_OK);
270*35786f68SRobert Mustacchi }
271*35786f68SRobert Mustacchi if (ACPI_FAILURE (Status))
272*35786f68SRobert Mustacchi {
273*35786f68SRobert Mustacchi return_ACPI_STATUS (Status);
274*35786f68SRobert Mustacchi }
2757b1019a6SJerry Jelinek
276*35786f68SRobert Mustacchi Status = AcpiWrite ((UINT64) SleepControl, &AcpiGbl_FADT.SleepControl);
2777b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
2787b1019a6SJerry Jelinek {
2797b1019a6SJerry Jelinek return_ACPI_STATUS (Status);
2807b1019a6SJerry Jelinek }
2817b1019a6SJerry Jelinek
2827b1019a6SJerry Jelinek /* Wait for transition back to Working State */
2837b1019a6SJerry Jelinek
2847b1019a6SJerry Jelinek do
2857b1019a6SJerry Jelinek {
2867b1019a6SJerry Jelinek Status = AcpiRead (&SleepStatus, &AcpiGbl_FADT.SleepStatus);
2877b1019a6SJerry Jelinek if (ACPI_FAILURE (Status))
2887b1019a6SJerry Jelinek {
2897b1019a6SJerry Jelinek return_ACPI_STATUS (Status);
2907b1019a6SJerry Jelinek }
2917b1019a6SJerry Jelinek
2927b1019a6SJerry Jelinek } while (!(((UINT8) SleepStatus) & ACPI_X_WAKE_STATUS));
2937b1019a6SJerry Jelinek
2947b1019a6SJerry Jelinek return_ACPI_STATUS (AE_OK);
2957b1019a6SJerry Jelinek }
2967b1019a6SJerry Jelinek
2977b1019a6SJerry Jelinek
2987b1019a6SJerry Jelinek /*******************************************************************************
2997b1019a6SJerry Jelinek *
3007b1019a6SJerry Jelinek * FUNCTION: AcpiHwExtendedWakePrep
3017b1019a6SJerry Jelinek *
3027b1019a6SJerry Jelinek * PARAMETERS: SleepState - Which sleep state we just exited
3037b1019a6SJerry Jelinek *
3047b1019a6SJerry Jelinek * RETURN: Status
3057b1019a6SJerry Jelinek *
3067b1019a6SJerry Jelinek * DESCRIPTION: Perform first part of OS-independent ACPI cleanup after
3077b1019a6SJerry Jelinek * a sleep. Called with interrupts ENABLED.
3087b1019a6SJerry Jelinek *
3097b1019a6SJerry Jelinek ******************************************************************************/
3107b1019a6SJerry Jelinek
3117b1019a6SJerry Jelinek ACPI_STATUS
AcpiHwExtendedWakePrep(UINT8 SleepState)3127b1019a6SJerry Jelinek AcpiHwExtendedWakePrep (
3137b1019a6SJerry Jelinek UINT8 SleepState)
3147b1019a6SJerry Jelinek {
3157b1019a6SJerry Jelinek ACPI_STATUS Status;
3167b1019a6SJerry Jelinek UINT8 SleepTypeValue;
3177b1019a6SJerry Jelinek
3187b1019a6SJerry Jelinek
3197b1019a6SJerry Jelinek ACPI_FUNCTION_TRACE (HwExtendedWakePrep);
3207b1019a6SJerry Jelinek
3217b1019a6SJerry Jelinek
3227b1019a6SJerry Jelinek Status = AcpiGetSleepTypeData (ACPI_STATE_S0,
3237b1019a6SJerry Jelinek &AcpiGbl_SleepTypeA, &AcpiGbl_SleepTypeB);
3247b1019a6SJerry Jelinek if (ACPI_SUCCESS (Status))
3257b1019a6SJerry Jelinek {
3267b1019a6SJerry Jelinek SleepTypeValue = ((AcpiGbl_SleepTypeA << ACPI_X_SLEEP_TYPE_POSITION) &
3277b1019a6SJerry Jelinek ACPI_X_SLEEP_TYPE_MASK);
3287b1019a6SJerry Jelinek
3297b1019a6SJerry Jelinek (void) AcpiWrite ((UINT64) (SleepTypeValue | ACPI_X_SLEEP_ENABLE),
3307b1019a6SJerry Jelinek &AcpiGbl_FADT.SleepControl);
3317b1019a6SJerry Jelinek }
3327b1019a6SJerry Jelinek
3337b1019a6SJerry Jelinek return_ACPI_STATUS (AE_OK);
3347b1019a6SJerry Jelinek }
3357b1019a6SJerry Jelinek
3367b1019a6SJerry Jelinek
3377b1019a6SJerry Jelinek /*******************************************************************************
3387b1019a6SJerry Jelinek *
3397b1019a6SJerry Jelinek * FUNCTION: AcpiHwExtendedWake
3407b1019a6SJerry Jelinek *
3417b1019a6SJerry Jelinek * PARAMETERS: SleepState - Which sleep state we just exited
3427b1019a6SJerry Jelinek *
3437b1019a6SJerry Jelinek * RETURN: Status
3447b1019a6SJerry Jelinek *
3457b1019a6SJerry Jelinek * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
3467b1019a6SJerry Jelinek * Called with interrupts ENABLED.
3477b1019a6SJerry Jelinek *
3487b1019a6SJerry Jelinek ******************************************************************************/
3497b1019a6SJerry Jelinek
3507b1019a6SJerry Jelinek ACPI_STATUS
AcpiHwExtendedWake(UINT8 SleepState)3517b1019a6SJerry Jelinek AcpiHwExtendedWake (
3527b1019a6SJerry Jelinek UINT8 SleepState)
3537b1019a6SJerry Jelinek {
3547b1019a6SJerry Jelinek ACPI_FUNCTION_TRACE (HwExtendedWake);
3557b1019a6SJerry Jelinek
3567b1019a6SJerry Jelinek
3577b1019a6SJerry Jelinek /* Ensure EnterSleepStatePrep -> EnterSleepState ordering */
3587b1019a6SJerry Jelinek
3597b1019a6SJerry Jelinek AcpiGbl_SleepTypeA = ACPI_SLEEP_TYPE_INVALID;
3607b1019a6SJerry Jelinek
3617b1019a6SJerry Jelinek /* Execute the wake methods */
3627b1019a6SJerry Jelinek
3637b1019a6SJerry Jelinek AcpiHwExecuteSleepMethod (METHOD_PATHNAME__SST, ACPI_SST_WAKING);
3647b1019a6SJerry Jelinek AcpiHwExecuteSleepMethod (METHOD_PATHNAME__WAK, SleepState);
3657b1019a6SJerry Jelinek
3667b1019a6SJerry Jelinek /*
3677b1019a6SJerry Jelinek * Some BIOS code assumes that WAK_STS will be cleared on resume
3687b1019a6SJerry Jelinek * and use it to determine whether the system is rebooting or
3697b1019a6SJerry Jelinek * resuming. Clear WAK_STS for compatibility.
3707b1019a6SJerry Jelinek */
3717b1019a6SJerry Jelinek (void) AcpiWrite ((UINT64) ACPI_X_WAKE_STATUS, &AcpiGbl_FADT.SleepStatus);
3727b1019a6SJerry Jelinek AcpiGbl_SystemAwakeAndRunning = TRUE;
3737b1019a6SJerry Jelinek
3747b1019a6SJerry Jelinek AcpiHwExecuteSleepMethod (METHOD_PATHNAME__SST, ACPI_SST_WORKING);
3757b1019a6SJerry Jelinek return_ACPI_STATUS (AE_OK);
3767b1019a6SJerry Jelinek }
377