2005-04-17 06:20:36 +08:00
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/******************************************************************************
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*
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* Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
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*
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*****************************************************************************/
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/*
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2008-04-24 11:00:13 +08:00
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* Copyright (C) 2000 - 2008, Intel Corp.
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2005-04-17 06:20:36 +08:00
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
|
2009-01-09 13:30:03 +08:00
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#include "accommon.h"
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#include "actables.h"
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2005-04-17 06:20:36 +08:00
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#define _COMPONENT ACPI_HARDWARE
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2005-08-05 12:44:28 +08:00
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ACPI_MODULE_NAME("hwsleep")
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2005-04-17 06:20:36 +08:00
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2005-04-19 10:49:35 +08:00
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/*******************************************************************************
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2005-04-17 06:20:36 +08:00
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*
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* FUNCTION: acpi_set_firmware_waking_vector
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*
|
2008-11-12 14:54:05 +08:00
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* PARAMETERS: physical_address - 32-bit physical address of ACPI real mode
|
2005-04-17 06:20:36 +08:00
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* entry point.
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*
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* RETURN: Status
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*
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2008-11-12 14:54:05 +08:00
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* DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
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2005-04-17 06:20:36 +08:00
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*
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******************************************************************************/
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acpi_status
|
2008-11-12 14:54:05 +08:00
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acpi_set_firmware_waking_vector(u32 physical_address)
|
2005-04-17 06:20:36 +08:00
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{
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 05:15:00 +08:00
|
|
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ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
|
2005-04-17 06:20:36 +08:00
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|
2007-02-03 00:48:18 +08:00
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|
2008-09-06 19:13:01 +08:00
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/*
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* According to the ACPI specification 2.0c and later, the 64-bit
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* waking vector should be cleared and the 32-bit waking vector should
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* be used, unless we want the wake-up code to be called by the BIOS in
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* Protected Mode. Some systems (for example HP dv5-1004nr) are known
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* to fail to resume if the 64-bit vector is used.
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*/
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|
2008-11-12 14:54:05 +08:00
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/* Set the 32-bit vector */
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|
2008-11-12 15:34:52 +08:00
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acpi_gbl_FACS->firmware_waking_vector = physical_address;
|
2008-11-12 14:54:05 +08:00
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/* Clear the 64-bit vector if it exists */
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|
2008-11-12 15:34:52 +08:00
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if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
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acpi_gbl_FACS->xfirmware_waking_vector = 0;
|
2008-11-12 14:54:05 +08:00
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|
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}
|
2005-04-17 06:20:36 +08:00
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|
2005-08-05 12:44:28 +08:00
|
|
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return_ACPI_STATUS(AE_OK);
|
2005-04-17 06:20:36 +08:00
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|
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}
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|
2006-10-03 12:00:00 +08:00
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ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
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|
2009-02-18 14:52:43 +08:00
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|
#if ACPI_MACHINE_WIDTH == 64
|
2005-04-19 10:49:35 +08:00
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/*******************************************************************************
|
2005-04-17 06:20:36 +08:00
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|
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*
|
2008-11-12 14:54:05 +08:00
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|
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* FUNCTION: acpi_set_firmware_waking_vector64
|
2005-04-17 06:20:36 +08:00
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*
|
2008-11-12 14:54:05 +08:00
|
|
|
* PARAMETERS: physical_address - 64-bit physical address of ACPI protected
|
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* mode entry point.
|
2005-04-17 06:20:36 +08:00
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*
|
2008-11-12 14:54:05 +08:00
|
|
|
* RETURN: Status
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2008-11-12 14:54:05 +08:00
|
|
|
* DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
|
2009-02-18 14:52:43 +08:00
|
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|
* it exists in the table. This function is intended for use with
|
|
|
|
* 64-bit host operating systems.
|
2005-04-17 06:20:36 +08:00
|
|
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*
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|
|
|
******************************************************************************/
|
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|
acpi_status
|
2008-11-12 14:54:05 +08:00
|
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|
acpi_set_firmware_waking_vector64(u64 physical_address)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-11-12 14:54:05 +08:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
|
2005-04-17 06:20:36 +08:00
|
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|
2008-11-12 14:54:05 +08:00
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/* Determine if the 64-bit vector actually exists */
|
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|
2008-11-12 15:34:52 +08:00
|
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|
if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
|
2008-11-12 14:54:05 +08:00
|
|
|
return_ACPI_STATUS(AE_NOT_EXIST);
|
|
|
|
}
|
|
|
|
|
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|
|
/* Clear 32-bit vector, set the 64-bit X_ vector */
|
|
|
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|
2008-11-12 15:34:52 +08:00
|
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|
acpi_gbl_FACS->firmware_waking_vector = 0;
|
|
|
|
acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2006-10-03 12:00:00 +08:00
|
|
|
|
2008-11-12 14:54:05 +08:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
|
2009-02-18 14:52:43 +08:00
|
|
|
#endif
|
2008-11-12 14:54:05 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*******************************************************************************
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_enter_sleep_state_prep
|
|
|
|
*
|
|
|
|
* PARAMETERS: sleep_state - Which sleep state to enter
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Prepare to enter a system sleep state (see ACPI 2.0 spec p 231)
|
|
|
|
* This function must execute with interrupts enabled.
|
|
|
|
* We break sleeping into 2 stages so that OSPM can handle
|
|
|
|
* various OS-specific tasks between the two steps.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_status status;
|
|
|
|
struct acpi_object_list arg_list;
|
|
|
|
union acpi_object arg;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 05:15:00 +08:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* _PSW methods could be run here to enable wake-on keyboard, LAN, etc. */
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_get_sleep_type_data(sleep_state,
|
|
|
|
&acpi_gbl_sleep_type_a,
|
|
|
|
&acpi_gbl_sleep_type_b);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Setup parameter object */
|
|
|
|
|
|
|
|
arg_list.count = 1;
|
|
|
|
arg_list.pointer = &arg;
|
|
|
|
|
|
|
|
arg.type = ACPI_TYPE_INTEGER;
|
|
|
|
arg.integer.value = sleep_state;
|
|
|
|
|
2008-01-08 07:05:21 +08:00
|
|
|
/* Run the _PTS method */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL);
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Setup the argument to _SST */
|
|
|
|
|
|
|
|
switch (sleep_state) {
|
|
|
|
case ACPI_STATE_S0:
|
|
|
|
arg.integer.value = ACPI_SST_WORKING;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_STATE_S1:
|
|
|
|
case ACPI_STATE_S2:
|
|
|
|
case ACPI_STATE_S3:
|
|
|
|
arg.integer.value = ACPI_SST_SLEEPING;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ACPI_STATE_S4:
|
|
|
|
arg.integer.value = ACPI_SST_SLEEP_CONTEXT;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2005-08-05 12:44:28 +08:00
|
|
|
arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is off */
|
2005-04-17 06:20:36 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2008-06-10 14:26:57 +08:00
|
|
|
/*
|
|
|
|
* Set the system indicators to show the desired sleep state.
|
|
|
|
* _SST is an optional method (return no error if not found)
|
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
2006-01-28 05:43:00 +08:00
|
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
|
|
|
"While executing method _SST"));
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-06-10 14:26:57 +08:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2006-10-03 12:00:00 +08:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
|
|
|
|
|
2009-04-18 11:32:20 +08:00
|
|
|
static unsigned int gts, bfs;
|
|
|
|
module_param(gts, uint, 0644);
|
|
|
|
module_param(bfs, uint, 0644);
|
|
|
|
MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
|
|
|
|
MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
|
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*******************************************************************************
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_enter_sleep_state
|
|
|
|
*
|
|
|
|
* PARAMETERS: sleep_state - Which sleep state to enter
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
|
|
|
|
* THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-02-18 14:36:05 +08:00
|
|
|
u32 pm1a_control;
|
|
|
|
u32 pm1b_control;
|
2005-08-05 12:44:28 +08:00
|
|
|
struct acpi_bit_register_info *sleep_type_reg_info;
|
|
|
|
struct acpi_bit_register_info *sleep_enable_reg_info;
|
|
|
|
u32 in_value;
|
2008-01-08 07:05:21 +08:00
|
|
|
struct acpi_object_list arg_list;
|
|
|
|
union acpi_object arg;
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_status status;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 05:15:00 +08:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) ||
|
2005-08-05 12:44:28 +08:00
|
|
|
(acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) {
|
2006-01-28 05:43:00 +08:00
|
|
|
ACPI_ERROR((AE_INFO, "Sleep values out of range: A=%X B=%X",
|
|
|
|
acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b));
|
2005-08-05 12:44:28 +08:00
|
|
|
return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
sleep_type_reg_info =
|
2009-02-18 14:31:05 +08:00
|
|
|
acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE);
|
2005-08-05 12:44:28 +08:00
|
|
|
sleep_enable_reg_info =
|
|
|
|
acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
/* Clear wake status */
|
|
|
|
|
2009-03-06 09:49:25 +08:00
|
|
|
status =
|
|
|
|
acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, ACPI_CLEAR_STATUS);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Clear all fixed and general purpose status bits */
|
|
|
|
|
2007-02-03 00:48:21 +08:00
|
|
|
status = acpi_hw_clear_acpi_status();
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2008-02-06 02:27:12 +08:00
|
|
|
* 1) Disable/Clear all GPEs
|
2005-04-17 06:20:36 +08:00
|
|
|
* 2) Enable all wakeup GPEs
|
|
|
|
*/
|
2007-03-13 02:49:26 +08:00
|
|
|
status = acpi_hw_disable_all_gpes();
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
acpi_gbl_system_awake_and_running = FALSE;
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_hw_enable_all_wakeup_gpes();
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2009-04-18 11:32:20 +08:00
|
|
|
if (gts) {
|
|
|
|
/* Execute the _GTS method */
|
2008-01-08 07:05:21 +08:00
|
|
|
|
2009-04-18 11:32:20 +08:00
|
|
|
arg_list.count = 1;
|
|
|
|
arg_list.pointer = &arg;
|
|
|
|
arg.type = ACPI_TYPE_INTEGER;
|
|
|
|
arg.integer.value = sleep_state;
|
2008-01-08 07:05:21 +08:00
|
|
|
|
2009-04-18 11:32:20 +08:00
|
|
|
status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
2008-01-08 07:05:21 +08:00
|
|
|
}
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/* Get current value of PM1A control */
|
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
|
|
|
|
&pm1a_control);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2005-08-05 12:44:28 +08:00
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INIT,
|
|
|
|
"Entering sleep state [S%d]\n", sleep_state));
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Clear the SLP_EN and SLP_TYP fields */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
pm1a_control &= ~(sleep_type_reg_info->access_bit_mask |
|
|
|
|
sleep_enable_reg_info->access_bit_mask);
|
|
|
|
pm1b_control = pm1a_control;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Insert the SLP_TYP bits */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
pm1a_control |=
|
2005-08-05 12:44:28 +08:00
|
|
|
(acpi_gbl_sleep_type_a << sleep_type_reg_info->bit_position);
|
2009-02-18 14:36:05 +08:00
|
|
|
pm1b_control |=
|
2005-08-05 12:44:28 +08:00
|
|
|
(acpi_gbl_sleep_type_b << sleep_type_reg_info->bit_position);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* We split the writes of SLP_TYP and SLP_EN to workaround
|
|
|
|
* poorly implemented hardware.
|
|
|
|
*/
|
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Write #1: write the SLP_TYP data to the PM1 Control registers */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Insert the sleep enable (SLP_EN) bit */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
pm1a_control |= sleep_enable_reg_info->access_bit_mask;
|
|
|
|
pm1b_control |= sleep_enable_reg_info->access_bit_mask;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Flush caches, as per ACPI specification */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
ACPI_FLUSH_CPU_CACHE();
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Write #2: Write both SLP_TYP + SLP_EN */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
if (sleep_state > ACPI_STATE_S3) {
|
|
|
|
/*
|
2005-04-19 10:49:35 +08:00
|
|
|
* We wanted to sleep > S3, but it didn't happen (by virtue of the
|
|
|
|
* fact that we are still executing!)
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2005-04-19 10:49:35 +08:00
|
|
|
* Wait ten seconds, then try again. This is to get S4/S5 to work on
|
|
|
|
* all machines.
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2009-03-06 10:05:18 +08:00
|
|
|
* We wait so long to allow chipsets that poll this reg very slowly
|
|
|
|
* to still read the right value. Ideally, this block would go
|
2005-04-17 06:20:36 +08:00
|
|
|
* away entirely.
|
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_os_stall(10000000);
|
|
|
|
|
2007-10-01 02:39:36 +08:00
|
|
|
status = acpi_hw_register_write(ACPI_REGISTER_PM1_CONTROL,
|
2005-08-05 12:44:28 +08:00
|
|
|
sleep_enable_reg_info->
|
|
|
|
access_bit_mask);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Wait until we enter sleep state */
|
|
|
|
|
|
|
|
do {
|
2009-02-23 15:02:07 +08:00
|
|
|
status = acpi_read_bit_register(ACPI_BITREG_WAKE_STATUS,
|
2007-10-01 02:39:42 +08:00
|
|
|
&in_value);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Spin until we wake */
|
|
|
|
|
|
|
|
} while (!in_value);
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2006-10-03 12:00:00 +08:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*******************************************************************************
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
* FUNCTION: acpi_enter_sleep_state_s4bios
|
|
|
|
*
|
|
|
|
* PARAMETERS: None
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Perform a S4 bios request.
|
|
|
|
* THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2005-08-05 12:44:28 +08:00
|
|
|
u32 in_value;
|
|
|
|
acpi_status status;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 05:15:00 +08:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-03-06 09:49:25 +08:00
|
|
|
/* Clear the wake status bit (PM1) */
|
|
|
|
|
|
|
|
status =
|
|
|
|
acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, ACPI_CLEAR_STATUS);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-02-03 00:48:21 +08:00
|
|
|
status = acpi_hw_clear_acpi_status();
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 1) Disable/Clear all GPEs
|
|
|
|
* 2) Enable all wakeup GPEs
|
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_hw_disable_all_gpes();
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
acpi_gbl_system_awake_and_running = FALSE;
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_hw_enable_all_wakeup_gpes();
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
ACPI_FLUSH_CPU_CACHE();
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-03-19 09:37:47 +08:00
|
|
|
status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
|
2007-02-03 00:48:18 +08:00
|
|
|
(u32) acpi_gbl_FADT.S4bios_request, 8);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
do {
|
|
|
|
acpi_os_stall(1000);
|
2009-02-23 15:02:07 +08:00
|
|
|
status =
|
|
|
|
acpi_read_bit_register(ACPI_BITREG_WAKE_STATUS, &in_value);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
} while (!in_value);
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2006-10-03 12:00:00 +08:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*******************************************************************************
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2008-01-08 07:05:21 +08:00
|
|
|
* FUNCTION: acpi_leave_sleep_state_prep
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2008-01-08 07:05:21 +08:00
|
|
|
* PARAMETERS: sleep_state - Which sleep state we are exiting
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
2008-01-08 07:05:21 +08:00
|
|
|
* DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
|
|
|
|
* sleep.
|
|
|
|
* Called with interrupts DISABLED.
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
******************************************************************************/
|
2008-01-08 07:05:21 +08:00
|
|
|
acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2005-08-05 12:44:28 +08:00
|
|
|
struct acpi_object_list arg_list;
|
|
|
|
union acpi_object arg;
|
|
|
|
acpi_status status;
|
|
|
|
struct acpi_bit_register_info *sleep_type_reg_info;
|
|
|
|
struct acpi_bit_register_info *sleep_enable_reg_info;
|
2009-02-18 14:36:05 +08:00
|
|
|
u32 pm1a_control;
|
|
|
|
u32 pm1b_control;
|
2005-04-17 06:20:36 +08:00
|
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|
|
2008-01-08 07:05:21 +08:00
|
|
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ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set SLP_TYPE and SLP_EN to state S0.
|
|
|
|
* This is unclear from the ACPI Spec, but it is required
|
|
|
|
* by some machines.
|
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_get_sleep_type_data(ACPI_STATE_S0,
|
|
|
|
&acpi_gbl_sleep_type_a,
|
|
|
|
&acpi_gbl_sleep_type_b);
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
|
|
|
sleep_type_reg_info =
|
2009-02-18 14:31:05 +08:00
|
|
|
acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE);
|
2005-08-05 12:44:28 +08:00
|
|
|
sleep_enable_reg_info =
|
|
|
|
acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_ENABLE);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
/* Get current value of PM1A control */
|
|
|
|
|
2007-10-01 02:39:36 +08:00
|
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|
status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
|
2009-02-18 14:36:05 +08:00
|
|
|
&pm1a_control);
|
2005-08-05 12:44:28 +08:00
|
|
|
if (ACPI_SUCCESS(status)) {
|
2006-10-02 12:00:00 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Clear the SLP_EN and SLP_TYP fields */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
pm1a_control &= ~(sleep_type_reg_info->access_bit_mask |
|
|
|
|
sleep_enable_reg_info->
|
|
|
|
access_bit_mask);
|
|
|
|
pm1b_control = pm1a_control;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Insert the SLP_TYP bits */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-03-06 10:05:18 +08:00
|
|
|
pm1a_control |= (acpi_gbl_sleep_type_a <<
|
|
|
|
sleep_type_reg_info->bit_position);
|
|
|
|
pm1b_control |= (acpi_gbl_sleep_type_b <<
|
|
|
|
sleep_type_reg_info->bit_position);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
/* Write the control registers and ignore any errors */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2009-02-18 14:36:05 +08:00
|
|
|
(void)acpi_hw_write_pm1_control(pm1a_control,
|
|
|
|
pm1b_control);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-04-18 11:32:20 +08:00
|
|
|
if (bfs) {
|
|
|
|
/* Execute the _BFS method */
|
2008-01-08 07:05:21 +08:00
|
|
|
|
2009-04-18 11:32:20 +08:00
|
|
|
arg_list.count = 1;
|
|
|
|
arg_list.pointer = &arg;
|
|
|
|
arg.type = ACPI_TYPE_INTEGER;
|
|
|
|
arg.integer.value = sleep_state;
|
2008-01-08 07:05:21 +08:00
|
|
|
|
2009-04-18 11:32:20 +08:00
|
|
|
status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
|
|
|
ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
|
|
|
|
}
|
2008-01-08 07:05:21 +08:00
|
|
|
}
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_leave_sleep_state
|
|
|
|
*
|
|
|
|
* PARAMETERS: sleep_state - Which sleep state we just exited
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
|
|
|
|
* Called with interrupts ENABLED.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status acpi_leave_sleep_state(u8 sleep_state)
|
|
|
|
{
|
|
|
|
struct acpi_object_list arg_list;
|
|
|
|
union acpi_object arg;
|
|
|
|
acpi_status status;
|
|
|
|
|
|
|
|
ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */
|
|
|
|
|
|
|
|
acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
|
|
|
|
|
|
|
|
/* Setup parameter object */
|
|
|
|
|
|
|
|
arg_list.count = 1;
|
|
|
|
arg_list.pointer = &arg;
|
|
|
|
arg.type = ACPI_TYPE_INTEGER;
|
|
|
|
|
|
|
|
/* Ignore any errors from these methods */
|
|
|
|
|
|
|
|
arg.integer.value = ACPI_SST_WAKING;
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
2006-01-28 05:43:00 +08:00
|
|
|
ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2007-08-24 13:24:47 +08:00
|
|
|
* GPEs must be enabled before _WAK is called as GPEs
|
|
|
|
* might get fired there
|
|
|
|
*
|
2005-04-17 06:20:36 +08:00
|
|
|
* Restore the GPEs:
|
|
|
|
* 1) Disable/Clear all GPEs
|
|
|
|
* 2) Enable all runtime GPEs
|
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_hw_disable_all_gpes();
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_hw_enable_all_runtime_gpes();
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-02-13 07:32:16 +08:00
|
|
|
arg.integer.value = sleep_state;
|
2007-08-24 13:24:47 +08:00
|
|
|
status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
|
|
|
ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
|
|
|
|
}
|
|
|
|
/* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
|
|
|
|
|
2008-08-07 02:12:04 +08:00
|
|
|
/*
|
|
|
|
* Some BIOSes assume that WAK_STS will be cleared on resume and use
|
|
|
|
* it to determine whether the system is rebooting or resuming. Clear
|
|
|
|
* it for compatibility.
|
|
|
|
*/
|
2009-02-23 15:02:07 +08:00
|
|
|
acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, 1);
|
2008-08-07 02:12:04 +08:00
|
|
|
|
2007-08-24 13:24:47 +08:00
|
|
|
acpi_gbl_system_awake_and_running = TRUE;
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/* Enable power button */
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
(void)
|
2009-02-23 15:02:07 +08:00
|
|
|
acpi_write_bit_register(acpi_gbl_fixed_event_info
|
2009-03-06 09:49:25 +08:00
|
|
|
[ACPI_EVENT_POWER_BUTTON].
|
|
|
|
enable_register_id, ACPI_ENABLE_EVENT);
|
2005-04-19 10:49:35 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
(void)
|
2009-02-23 15:02:07 +08:00
|
|
|
acpi_write_bit_register(acpi_gbl_fixed_event_info
|
2009-03-06 09:49:25 +08:00
|
|
|
[ACPI_EVENT_POWER_BUTTON].
|
|
|
|
status_register_id, ACPI_CLEAR_STATUS);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
arg.integer.value = ACPI_SST_WORKING;
|
2005-08-05 12:44:28 +08:00
|
|
|
status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
|
|
|
|
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
|
2006-01-28 05:43:00 +08:00
|
|
|
ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2006-10-03 12:00:00 +08:00
|
|
|
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state)
|