146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/*-
|
|
* Copyright (c) 2001 Mitsuru IWASAKI
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include "acpi.h"
|
|
#include <machine/cpufunc.h>
|
|
#include <dev/acpica/acpica_support.h>
|
|
|
|
ACPI_MODULE_NAME("SUPPORT")
|
|
|
|
/*
|
|
* Implement support code temporary here until officially merged into
|
|
* Intel ACPI CA release.
|
|
*/
|
|
|
|
#undef _COMPONENT
|
|
#define _COMPONENT ACPI_HARDWARE
|
|
|
|
/******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiEnterSleepStateS4Bios
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Enter a system sleep state S4BIOS
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiEnterSleepStateS4Bios (
|
|
void)
|
|
{
|
|
ACPI_OBJECT_LIST ArgList;
|
|
ACPI_OBJECT Arg;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("AcpiEnterSleepStateS4Bios");
|
|
|
|
/* run the _PTS and _GTS methods */
|
|
|
|
ACPI_MEMSET(&ArgList, 0, sizeof(ArgList));
|
|
ArgList.Count = 1;
|
|
ArgList.Pointer = &Arg;
|
|
|
|
ACPI_MEMSET(&Arg, 0, sizeof(Arg));
|
|
Arg.Type = ACPI_TYPE_INTEGER;
|
|
Arg.Integer.Value = ACPI_STATE_S4;
|
|
|
|
AcpiEvaluateObject (NULL, "\\_PTS", &ArgList, NULL);
|
|
AcpiEvaluateObject (NULL, "\\_GTS", &ArgList, NULL);
|
|
|
|
/* clear wake status */
|
|
|
|
AcpiHwBitRegisterWrite (ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_LOCK);
|
|
|
|
acpi_disable_irqs ();
|
|
|
|
AcpiHwDisableNonWakeupGpes();
|
|
|
|
/* flush caches */
|
|
|
|
#ifdef __i386__
|
|
wbinvd();
|
|
#endif
|
|
|
|
/* write the value to command port and wait until we enter sleep state */
|
|
do
|
|
{
|
|
AcpiOsStall(1000000);
|
|
AcpiOsWritePort (AcpiGbl_FADT->SmiCmd, AcpiGbl_FADT->S4BiosReq, 8);
|
|
}
|
|
while (!AcpiHwBitRegisterRead (ACPI_BITREG_WAKE_STATUS, ACPI_MTX_LOCK));
|
|
|
|
AcpiHwEnableNonWakeupGpes();
|
|
|
|
acpi_enable_irqs ();
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
#undef _COMPONENT
|
|
#define _COMPONENT ACPI_TABLES
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiSetDsdtTablePtr
|
|
*
|
|
* PARAMETERS: TablePtr - pointer to a buffer containing the entire
|
|
* DSDT table to override
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Set DSDT table ptr for DSDT overriding. This function should
|
|
* be called perior than AcpiLoadTables().
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiSetDsdtTablePtr(
|
|
ACPI_TABLE_HEADER *TablePtr)
|
|
{
|
|
ACPI_FUNCTION_TRACE ("AcpiSetDsdtTablePtr");
|
|
|
|
if (!TablePtr)
|
|
{
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
if (AcpiGbl_AcpiTables[ACPI_TABLE_DSDT].LoadedIntoNamespace)
|
|
{
|
|
return_ACPI_STATUS (AE_ALREADY_EXISTS);
|
|
}
|
|
|
|
AcpiGbl_DSDT = TablePtr;
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|