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Add sysctl knob to stop disabling acpi on shutdown.

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Approved by: re(jhb)
This commit is contained in:
takawata 2002-12-11 18:48:50 +00:00
parent a3d0cd9e0b
commit aaf906035b
2 changed files with 10 additions and 2 deletions
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11
sys/dev/acpica/acpi.c
View File

@ -427,6 +427,10 @@ acpi_attach(device_t dev)
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
OID_AUTO, "verbose", CTLFLAG_RD | CTLFLAG_RW,
&sc->acpi_verbose, 0, "verbose mode");
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
OID_AUTO, "disable_on_poweroff", CTLFLAG_RD | CTLFLAG_RW,
&sc->acpi_disable_on_poweroff, 0, "ACPI subsystem disable on poweroff");
sc->acpi_disable_on_poweroff = 1;
sc->acpi_sleep_delay = 0;
sc->acpi_s4bios = 1;
if (bootverbose)
@ -869,8 +873,10 @@ static void
acpi_shutdown_pre_sync(void *arg, int howto)
{
struct acpi_softc *sc = arg;
ACPI_ASSERTLOCK;
/*
* Disable all ACPI events before soft off, otherwise the system
* will be turned on again on some laptops.
@ -879,7 +885,8 @@ acpi_shutdown_pre_sync(void *arg, int howto)
* before powering down, since we may still need ACPI during the
* shutdown process.
*/
acpi_Disable((struct acpi_softc *)arg);
if (sc->acpi_disable_on_poweroff)
acpi_Disable(sc);
}
static void

1
sys/dev/acpica/acpivar.h
View File

@ -65,6 +65,7 @@ struct acpi_softc {
int acpi_sleep_delay;
int acpi_s4bios;
int acpi_disable_on_poweroff;
int acpi_verbose;