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Apply a local change to ACPICA.

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Some BIOSes don't set WAK_STS at all,
give up waiting for wakeup if we time out.
This commit is contained in:
Mitsuru IWASAKI 2001-11-11 15:36:35 +00:00
parent 94eacee1fc
commit 8d2d52e43a
1 changed files with 9 additions and 1 deletions
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10
sys/contrib/dev/acpica/hwsleep.c
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@ -237,6 +237,7 @@ AcpiEnterSleepState (
UINT8 TypeB;
UINT16 PM1AControl;
UINT16 PM1BControl;
UINT32 Retry;
FUNCTION_TRACE ("AcpiEnterSleepState");
@ -318,9 +319,16 @@ AcpiEnterSleepState (
/* wait until we enter sleep state */
Retry = 1000;
do
{
AcpiOsStall(10000);
/*
* Some BIOSes don't set WAK_STS at all,
* give up waiting for wakeup if we time out.
*/
if (Retry-- == 0) {
break; /* giving up */
}
}
while (!AcpiHwRegisterBitAccess (ACPI_READ, ACPI_MTX_LOCK, WAK_STS));