diff options
author | njl <njl@FreeBSD.org> | 2005-10-24 05:34:21 +0000 |
---|---|---|
committer | njl <njl@FreeBSD.org> | 2005-10-24 05:34:21 +0000 |
commit | 2c9bd35a9a61d98e1936a24f0c9fc4cff5c47134 (patch) | |
tree | 00ecad58b8d6eb0270a31cd3f12f567d633a48e5 /sys/dev/acpica | |
parent | 841a0c67c5562508c556920b582f92644d896306 (diff) | |
download | FreeBSD-src-2c9bd35a9a61d98e1936a24f0c9fc4cff5c47134.zip FreeBSD-src-2c9bd35a9a61d98e1936a24f0c9fc4cff5c47134.tar.gz |
If no AC line devices are found, go ahead and notify devd that the system
is on AC power (i.e. not a laptop). This allows power_profile to run once
for desktop systems as well, for instance, to set C3 or CPU frequency.
MFC after: 2 weeks
Diffstat (limited to 'sys/dev/acpica')
-rw-r--r-- | sys/dev/acpica/acpi_acad.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sys/dev/acpica/acpi_acad.c b/sys/dev/acpica/acpi_acad.c index 413a558..02da0e8 100644 --- a/sys/dev/acpica/acpi_acad.c +++ b/sys/dev/acpica/acpi_acad.c @@ -66,6 +66,7 @@ static int acpi_acad_attach(device_t); static int acpi_acad_ioctl(u_long, caddr_t, void *); static int acpi_acad_sysctl(SYSCTL_HANDLER_ARGS); static void acpi_acad_init_acline(void *arg); +static void acpi_acad_ac_only(void *arg); static device_method_t acpi_acad_methods[] = { /* Device interface */ @@ -87,6 +88,8 @@ MODULE_DEPEND(acpi_acad, acpi, 1, 1, 1); ACPI_SERIAL_DECL(acad, "ACPI AC adapter"); +SYSINIT(acad, SI_SUB_KTHREAD_IDLE, SI_ORDER_FIRST, acpi_acad_ac_only, NULL); + static void acpi_acad_get_status(void *context) { @@ -245,6 +248,21 @@ acpi_acad_init_acline(void *arg) } /* + * If no AC line devices detected after boot, create an "online" event + * so that userland code can adjust power settings accordingly. The default + * power profile is "performance" so we don't need to repeat that here. + */ +static void +acpi_acad_ac_only(void __unused *arg) +{ + + if (devclass_get_count(acpi_acad_devclass) > 0) + return; + + acpi_UserNotify("ACAD", ACPI_ROOT_OBJECT, 1); +} + +/* * Public interfaces. */ int |