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|
#!/bin/bash
SLEEP_SECS_INIT=30
SLEEP_SECS=$SLEEP_SECS_INIT
SLEEP_STEP=180
SLEEP_MAX_SECS=600
WAKE_SECS=35
LOCK_DIR="/tmp/sleepwalk"
CPU_STATE=1
THRESHOLD="15.00"
set_cpu_offline() {
if [ $CPU_STATE -eq 1 ]; then
echo "Powering off all CPU cores except cpu0"
for i in $(seq 2); do
echo 0 > /sys/devices/system/cpu/cpu$i/online
done
CPU_STATE=0
fi
}
set_cpu_online() {
SLEEP_SECS=$SLEEP_SECS_INIT
if [ $CPU_STATE -eq 0 ]; then
echo "Powering on all CPU cores except cpu0"
for i in $(seq 2); do
echo 1 > /sys/devices/system/cpu/cpu$i/online
done
CPU_STATE=1
fi
}
start_deep_sleep() {
led_sleep
if [ $((SLEEP_SECS + $SLEEP_STEP)) -lt $SLEEP_MAX_SECS ]; then
SLEEP_SECS=$((SLEEP_SECS + SLEEP_STEP))
else
SLEEP_SECS=$SLEEP_MAX_SECS
fi
sleep 5 # Give some extra time for pending output data
if [ can_suspend ]; then
echo mem > /sys/power/state 2>/dev/null
fi
return $?
}
wait_for_notifications() {
secs=$WAKE_SECS
is_led_on=0
while [ $secs -ge 0 ]; do
sleep 1
if [ $is_led_on == 0 ]; then
led_wake
is_led_on=1
else
led_disable
is_led_on=0
fi
if is_screen_on; then
if is_charging; then
cpufreq-set -g conservative
else
cpufreq-set -g powersave
fi
set_cpu_online
break
fi
set_cpu_offline
secs=$(($secs-1))
done
led_disable
}
schedule_wake_time() {
echo "Sleeping for ${SLEEP_SECS}s"
rtcwake -m no --date "+${SLEEP_SECS}s" 2>&1 >/dev/null
}
reset_wake_time() {
led_wake
> /sys/class/rtc/rtc0/wakealarm
}
is_charging() {
[ "$(cat /sys/class/power_supply/axp20x-usb/online)" = "1" ]
}
is_inhibitor_active() {
# INHIBITORS=$(sudo -u "$(cat /proc/$(pidof -s gnome-session-ctl)/environ | grep -z USER | sed 's,\x0,,;s,USER=,,')" DBUS_SESSION_BUS_ADDRESS=$(cat /proc/$(pidof -s gnome-session-ctl)/environ | grep -z DBUS_SESSION_BUS_ADDRESS | sed "s,\x0,,;s,DBUS_SESSION_BUS_ADDRESS=,,") gnome-session-inhibit --list)
# printf "%s\n" "$INHIBITORS"
INHIBITORS=$(systemd-inhibit --list --what=sleep --mode=block --no-legend \
| grep -e 'sleep')
[ -n "$INHIBITORS" ]
# if [ "$INHIBITORS" = "No inhibitors" ]; then
# return 1
# fi
# return 0
}
is_screen_on() {
return "$(cat /sys/class/backlight/backlight/bl_power)"
}
network_activity() {
for n in $(seq 3)
do
for i in wwan0 wlan0
do
A=$(ifstat -i $i 1 1 | tail -n1)
RX=$(echo $A | awk '{print $1}')
TX=$(echo $A | awk '{print $2}')
if [ "$RX" = "n/a" ] || [ "$TX" = "n/a" ]
then
return 1
fi
for v in $RX $TX
do
C=$(echo $v $THRESHOLD |
awk '{if ($1 > $2) print "y"; else print "n"}')
if [ "$C" = "y" ]
then
return 0
fi
done
done
done
return 1
}
can_suspend() {
! ( is_inhibitor_active || is_screen_on || is_charging || network_activity )
}
led_sleep() {
:
# echo 1 > /sys/class/leds/green\:indicator/brightness
# echo 0 > /sys/class/leds/red\:indicator/brightness
# echo 0 > /sys/class/leds/blue\:indicator/brightness
}
led_wake() {
:
# echo 0 > /sys/class/leds/green\:indicator/brightness
# echo 1 > /sys/class/leds/red\:indicator/brightness
# echo 0 > /sys/class/leds/blue\:indicator/brightness
}
led_disable() {
:
# echo 0 > /sys/class/leds/green\:indicator/brightness
# echo 0 > /sys/class/leds/red\:indicator/brightness
# echo 0 > /sys/class/leds/blue\:indicator/brightness
}
if [ $EUID -ne 0 ]; then
echo "Needs root" >&2
exit 1
fi
if [ -z "$1" ] || [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
cat <<-EOF >&2
Usage: sleepwalk [start/stop]
Commands:
start Start sleep cycle
stop Stop sleep cycle
EOF
exit
fi
if [ "$1" == "start" ]; then
if [ -d "$LOCK_DIR" ] || ! mkdir "$LOCK_DIR"; then
echo "sleepwalk is already running - run 'sleepwalk stop' to stop it" >&2
exit 1
fi
trap "$0 stop" EXIT
while [ -d "$LOCK_DIR" ]; do
while ! can_suspend; do
set_cpu_online
if is_charging && is_screen_on; then
cpufreq-set -g conservative
else
cpufreq-set -g powersave
fi
sleep 10
done
reset_wake_time
schedule_wake_time
while ! start_deep_sleep; do
reset_wake_time
echo "Failed going to sleep, try again in $WAKE_SECS seconds ..." >&2
wait_for_notifications
schedule_wake_time
if ! can_suspend; then
break
fi
done
wait_for_notifications
done
elif [ "$1" == "stop" ]; then
reset_wake_time
led_disable
rmdir "$LOCK_DIR" 2>/dev/null
else
echo "Unknown command: $1" >&2
exit 1
fi
|
