157 lines
4.2 KiB
C
157 lines
4.2 KiB
C
/*-
|
|
* Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
* Timer device driver for power management events.
|
|
* The code for suspend/resume is derived from APM device driver.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/power.h>
|
|
#include <sys/syslog.h>
|
|
#include <machine/clock.h>
|
|
|
|
#include <isa/isavar.h>
|
|
|
|
static devclass_t pmtimer_devclass;
|
|
|
|
/* reject any PnP devices for now */
|
|
static struct isa_pnp_id pmtimer_ids[] = {
|
|
{0}
|
|
};
|
|
|
|
static void
|
|
pmtimer_identify(driver_t *driver, device_t parent)
|
|
{
|
|
device_t child;
|
|
|
|
/*
|
|
* Only add a child if one doesn't exist already.
|
|
*/
|
|
child = devclass_get_device(pmtimer_devclass, 0);
|
|
if (child == NULL) {
|
|
child = BUS_ADD_CHILD(parent, 0, "pmtimer", 0);
|
|
if (child == NULL)
|
|
panic("pmtimer_identify");
|
|
}
|
|
}
|
|
|
|
static int
|
|
pmtimer_probe(device_t dev)
|
|
{
|
|
|
|
if (ISA_PNP_PROBE(device_get_parent(dev), dev, pmtimer_ids) == ENXIO)
|
|
return (ENXIO);
|
|
|
|
/* only one instance always */
|
|
return (device_get_unit(dev));
|
|
}
|
|
|
|
static struct timeval suspend_time;
|
|
static struct timeval diff_time;
|
|
|
|
static int
|
|
pmtimer_suspend(device_t dev)
|
|
{
|
|
|
|
if (power_pm_get_type() == POWER_PM_TYPE_ACPI)
|
|
return (0);
|
|
|
|
microtime(&diff_time);
|
|
inittodr(0);
|
|
microtime(&suspend_time);
|
|
timevalsub(&diff_time, &suspend_time);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
pmtimer_resume(device_t dev)
|
|
{
|
|
u_int second, minute, hour;
|
|
struct timeval resume_time, tmp_time;
|
|
|
|
if (power_pm_get_type() == POWER_PM_TYPE_ACPI)
|
|
return (0);
|
|
|
|
/* modified for adjkerntz */
|
|
timer_restore(); /* restore the all timers */
|
|
inittodr(0); /* adjust time to RTC */
|
|
microtime(&resume_time);
|
|
getmicrotime(&tmp_time);
|
|
timevaladd(&tmp_time, &diff_time);
|
|
|
|
#ifdef FIXME
|
|
/* XXX THIS DOESN'T WORK!!! */
|
|
time = tmp_time;
|
|
#endif
|
|
|
|
#ifdef PMTIMER_FIXUP_CALLTODO
|
|
/* Calculate the delta time suspended */
|
|
timevalsub(&resume_time, &suspend_time);
|
|
/* Fixup the calltodo list with the delta time. */
|
|
adjust_timeout_calltodo(&resume_time);
|
|
/*
|
|
* We've already calculated resume_time to be the delta between
|
|
* the suspend and the resume.
|
|
*/
|
|
second = resume_time.tv_sec;
|
|
#else /* !PMTIMER_FIXUP_CALLTODO */
|
|
second = resume_time.tv_sec - suspend_time.tv_sec;
|
|
#endif /* PMTIMER_FIXUP_CALLTODO */
|
|
hour = second / 3600;
|
|
second %= 3600;
|
|
minute = second / 60;
|
|
second %= 60;
|
|
log(LOG_NOTICE, "wakeup from sleeping state (slept %02d:%02d:%02d)\n",
|
|
hour, minute, second);
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t pmtimer_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_identify, pmtimer_identify),
|
|
DEVMETHOD(device_probe, pmtimer_probe),
|
|
DEVMETHOD(device_attach, bus_generic_attach),
|
|
DEVMETHOD(device_suspend, pmtimer_suspend),
|
|
DEVMETHOD(device_resume, pmtimer_resume),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t pmtimer_driver = {
|
|
"pmtimer",
|
|
pmtimer_methods,
|
|
1, /* no softc */
|
|
};
|
|
|
|
DRIVER_MODULE(pmtimer, isa, pmtimer_driver, pmtimer_devclass, 0, 0);
|