Date: Thu, 14 Apr 2011 22:17:39 +0000 (UTC) From: Jung-uk Kim <jkim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r220647 - in head/sys: dev/acpica sys Message-ID: <201104142217.p3EMHdQ7050000@svn.freebsd.org>
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Author: jkim Date: Thu Apr 14 22:17:39 2011 New Revision: 220647 URL: http://svn.freebsd.org/changeset/base/220647 Log: Add event handlers for (ACPI) suspend/resume events. Suspend event handlers are invoked right before device drivers go into sleep state and resume event handlers are invoked right after all device drivers are waken up. Modified: head/sys/dev/acpica/acpi.c head/sys/sys/eventhandler.h Modified: head/sys/dev/acpica/acpi.c ============================================================================== --- head/sys/dev/acpica/acpi.c Thu Apr 14 22:06:11 2011 (r220646) +++ head/sys/dev/acpica/acpi.c Thu Apr 14 22:17:39 2011 (r220647) @@ -2594,6 +2594,8 @@ acpi_EnterSleepState(struct acpi_softc * 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); Modified: head/sys/sys/eventhandler.h ============================================================================== --- head/sys/sys/eventhandler.h Thu Apr 14 22:06:11 2011 (r220646) +++ head/sys/sys/eventhandler.h Thu Apr 14 22:17:39 2011 (r220647) @@ -178,6 +178,11 @@ EVENTHANDLER_DECLARE(shutdown_pre_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
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