d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

If no AC line devices are found, go ahead and notify devd that the system

Browse Source 
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
This commit is contained in:
Nate Lawson 2005-10-24 05:34:21 +00:00
parent 7dcb6ea4f6
commit 895e60b801
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
sys/dev/acpica/acpi_acad.c
View File

@ -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)
{
@ -244,6 +247,21 @@ acpi_acad_init_acline(void *arg)
"acline initialization done, tried %d times\n", retry + 1);
}
/*
* 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.
*/