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Import for 20031203 file off vendor branch.

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This commit is contained in:
njl 2003-12-09 02:57:30 +00:00
parent 088e0f7b51
commit 9170060179
1 changed files with 72 additions and 40 deletions
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112
sys/contrib/dev/acpica/hwsleep.c
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@ -2,7 +2,7 @@
/******************************************************************************
*
* Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
* $Revision: 56 $
* $Revision: 58 $
*
*****************************************************************************/
@ -262,6 +262,14 @@ AcpiEnterSleepStatePrep (
return_ACPI_STATUS (Status);
}
/* Set the system indicators to show the desired sleep state. */
Status = AcpiEvaluateObject (NULL, "\\_SI._SST", &ArgList, NULL);
if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
{
ACPI_REPORT_ERROR (("Method _SST failed, %s\n", AcpiFormatException (Status)));
}
return_ACPI_STATUS (AE_OK);
}
@ -288,7 +296,6 @@ AcpiEnterSleepState (
ACPI_BIT_REGISTER_INFO *SleepTypeRegInfo;
ACPI_BIT_REGISTER_INFO *SleepEnableRegInfo;
UINT32 InValue;
UINT32 Retry;
ACPI_STATUS Status;
@ -303,30 +310,32 @@ AcpiEnterSleepState (
return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
}
SleepTypeRegInfo = AcpiHwGetBitRegisterInfo (ACPI_BITREG_SLEEP_TYPE_A);
SleepEnableRegInfo = AcpiHwGetBitRegisterInfo (ACPI_BITREG_SLEEP_ENABLE);
/* Clear wake status */
Status = AcpiSetRegister (ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (Status))
if (SleepState != ACPI_STATE_S5)
{
return_ACPI_STATUS (Status);
}
/* Clear wake status */
Status = AcpiHwClearAcpiStatus(ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiSetRegister (ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Disable BM arbitration */
Status = AcpiHwClearAcpiStatus (ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 1, ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
/* Disable BM arbitration */
Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 1, ACPI_MTX_DO_NOT_LOCK);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
Status = AcpiHwDisableNonWakeupGpes();
@ -389,12 +398,14 @@ AcpiEnterSleepState (
return_ACPI_STATUS (Status);
}
/*
* Wait a second, then try again. This is to get S4/5 to work on all machines.
*/
if (SleepState > ACPI_STATE_S3)
{
/*
* We wanted to sleep > S3, but it didn't happen (by virtue of the fact that
* we are still executing!)
*
* Wait ten seconds, then try again. This is to get S4/S5 to work on all machines.
*
* We wait so long to allow chipsets that poll this reg very slowly to
* still read the right value. Ideally, this entire block would go
* away entirely.
@ -411,7 +422,6 @@ AcpiEnterSleepState (
/* Wait until we enter sleep state */
Retry = 1000;
do
{
Status = AcpiGetRegister (ACPI_BITREG_WAKE_STATUS, &InValue, ACPI_MTX_DO_NOT_LOCK);
@ -420,15 +430,6 @@ AcpiEnterSleepState (
return_ACPI_STATUS (Status);
}
/*
* Some BIOSes don't set WAK_STS at all,
* give up waiting for wakeup if we time out.
*/
if (Retry-- == 0)
{
break; /* giving up */
}
/* Spin until we wake */
} while (!InValue);
@ -460,6 +461,7 @@ AcpiEnterSleepStateS4bios (
ACPI_FUNCTION_TRACE ("AcpiEnterSleepStateS4bios");
AcpiSetRegister (ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_DO_NOT_LOCK);
AcpiHwClearAcpiStatus(ACPI_MTX_DO_NOT_LOCK);
@ -496,15 +498,39 @@ AcpiEnterSleepStateS4bios (
ACPI_STATUS
AcpiLeaveSleepState (
UINT8 SleepState)
UINT8 SleepState)
{
ACPI_OBJECT_LIST ArgList;
ACPI_OBJECT Arg;
ACPI_STATUS Status;
ACPI_OBJECT_LIST ArgList;
ACPI_OBJECT Arg;
ACPI_STATUS Status;
ACPI_BIT_REGISTER_INFO *SleepTypeRegInfo;
ACPI_BIT_REGISTER_INFO *SleepEnableRegInfo;
UINT32 PM1xControl;
ACPI_FUNCTION_TRACE ("AcpiLeaveSleepState");
/* Some machines require SLP_TYPE and SLP_EN to be cleared */
SleepTypeRegInfo = AcpiHwGetBitRegisterInfo (ACPI_BITREG_SLEEP_TYPE_A);
SleepEnableRegInfo = AcpiHwGetBitRegisterInfo (ACPI_BITREG_SLEEP_ENABLE);
/* Get current value of PM1A control */
Status = AcpiHwRegisterRead (ACPI_MTX_DO_NOT_LOCK,
ACPI_REGISTER_PM1_CONTROL, &PM1xControl);
if (ACPI_SUCCESS (Status))
{
/* Clear SLP_TYP and SLP_EN */
PM1xControl &= ~(SleepTypeRegInfo->AccessBitMask |
SleepEnableRegInfo->AccessBitMask);
AcpiHwRegisterWrite (ACPI_MTX_DO_NOT_LOCK,
ACPI_REGISTER_PM1A_CONTROL, PM1xControl);
AcpiHwRegisterWrite (ACPI_MTX_DO_NOT_LOCK,
ACPI_REGISTER_PM1B_CONTROL, PM1xControl);
}
/* Ensure EnterSleepStatePrep -> EnterSleepState ordering */
@ -514,12 +540,18 @@ AcpiLeaveSleepState (
ArgList.Count = 1;
ArgList.Pointer = &Arg;
Arg.Type = ACPI_TYPE_INTEGER;
Arg.Integer.Value = SleepState;
/* Ignore any errors from these methods */
Arg.Integer.Value = 0;
Status = AcpiEvaluateObject (NULL, "\\_SI._SST", &ArgList, NULL);
if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
{
ACPI_REPORT_ERROR (("Method _SST failed, %s\n", AcpiFormatException (Status)));
}
Arg.Integer.Value = SleepState;
Status = AcpiEvaluateObject (NULL, "\\_BFS", &ArgList, NULL);
if (ACPI_FAILURE (Status) && Status != AE_NOT_FOUND)
{
@ -540,8 +572,8 @@ AcpiLeaveSleepState (
return_ACPI_STATUS (Status);
}
/* Disable BM arbitration */
Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 0, ACPI_MTX_LOCK);
/* Enable BM arbitration */
Status = AcpiSetRegister (ACPI_BITREG_ARB_DISABLE, 0, ACPI_MTX_LOCK);
return_ACPI_STATUS (Status);
}