freebsd-dev/etc/rc.suspend

#!/bin/sh
#
# Copyright (c) 1999  Mitsuru IWASAKI
# 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.
#
# $FreeBSD$
#

# sample run command file for APM Suspend Event

if [ $# -ne 2 ]; then
	echo "Usage: $0 [apm|acpi] [standby,suspend|1-4]"
	exit 1
fi

subsystem=$1
state=$2

if [ -r /var/run/rc.suspend.pid ]; then
	exit 1
fi

echo $$ 2> /dev/null > /var/run/rc.suspend.pid

_t=`/sbin/sysctl -n kern.timecounter.hardware 2> /dev/null`
case ${_t#ACPI-} in
fast|safe)
	/bin/rm -f /var/run/rc.suspend.tch
	;;
*)
	{ /sbin/sysctl -n kern.timecounter.hardware=ACPI-fast || \
	    /sbin/sysctl -n kern.timecounter.hardware=ACPI-safe; } \
	    > /dev/null 2>&1 && echo $_t > /var/run/rc.suspend.tch
	;;
esac

# If you have troubles on suspending with PC-CARD modem, try this.
# See also contrib/pccardq.c (Only for PAO users).
# pccardq | awk -F '~' '$5 == "filled" && $4 ~ /uart/ \
#	{ printf("pccardc power %d 0", $1); }' | sh

# If a device driver has problems suspending, try unloading it before
# suspend and reloading it on resume.  Example:
# kldunload usb

/usr/bin/logger -t $subsystem suspend at `/bin/date +'%Y%m%d %H:%M:%S'`
/bin/sync && /bin/sync && /bin/sync
/bin/sleep 3

/bin/rm -f /var/run/rc.suspend.pid
if [ $subsystem = "apm" ]; then
	/usr/sbin/zzz
else
	# Notify the kernel to continue the suspend process
	/usr/sbin/acpiconf -k 0
fi

exit 0