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

Add event handlers for (ACPI) suspend/resume events. Suspend event handlers

Browse Source 
are invoked right before device drivers go into sleep state and resume event
handlers are invoked right after all device drivers are waken up.
This commit is contained in:
jkim 2011-04-14 22:17:39 +00:00
parent 413a619804
commit 5e701afcf0
2 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/dev/acpica/acpi.c
View File

@ -2594,6 +2594,8 @@ acpi_EnterSleepState(struct acpi_softc *sc, int state)
return_ACPI_STATUS (AE_OK);
}
EVENTHANDLER_INVOKE(power_suspend);
if (smp_started) {
thread_lock(curthread);
sched_bind(curthread, 0);
@ -2685,6 +2687,8 @@ backout:
thread_unlock(curthread);
}
EVENTHANDLER_INVOKE(power_resume);
/* Allow another sleep request after a while. */
timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME);

5
sys/sys/eventhandler.h
View File

@ -178,6 +178,11 @@ EVENTHANDLER_DECLARE(shutdown_pre_sync, shutdown_fn); /* before fs sync */
EVENTHANDLER_DECLARE(shutdown_post_sync, shutdown_fn); /* after fs sync */
EVENTHANDLER_DECLARE(shutdown_final, shutdown_fn);
/* Power state change events */
typedef void (*power_change_fn)(void *);
EVENTHANDLER_DECLARE(power_resume, power_change_fn);
EVENTHANDLER_DECLARE(power_suspend, power_change_fn);
/* Low memory event */
typedef void (*vm_lowmem_handler_t)(void *, int);
#define LOWMEM_PRI_DEFAULT EVENTHANDLER_PRI_FIRST