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#!/usr/bin/env sh
# include common definitions
# shellcheck source=scripts/core/sxmo_common.sh
. "$(dirname "$0")/sxmo_common.sh"
# Run xinput and get touchscreen id
TOUCH_POINTER_ID="${TOUCH_POINTER_ID:-"8"}"
REDLED_PATH="/sys/class/leds/red:indicator/brightness"
BLUELED_PATH="/sys/class/leds/blue:indicator/brightness"
WAKEUPRTC="/sys/class/wakeup/wakeup1/active_count"
MODEMUPRTC="/sys/class/wakeup/wakeup10/active_count"
NETWORKRTCSCAN="/sys/module/8723cs/parameters/rtw_scan_interval_thr"
POWERRTC="/sys/class/wakeup/wakeup5/active_count"
OLD_RTC_WAKECOUNT="$XDG_RUNTIME_DIR/wakeup.rtc.count"
OLD_MODEM_WAKECOUNT="$XDG_RUNTIME_DIR/wakeup.modem.count"
OLD_POWER_WAKECOUNT="$XDG_RUNTIME_DIR/wakeup.power.count"
saveAllEventCounts() {
#these help us determine the reason of the next wakeup
cat "$WAKEUPRTC" > "$OLD_RTC_WAKECOUNT"
cat "$MODEMUPRTC" > "$OLD_MODEM_WAKECOUNT"
cat "$POWERRTC" > "$OLD_POWER_WAKECOUNT"
# TODO: add logic for modem wakeup
}
whichWake() {
#attempt to find the reason why we woke up:
if [ "$(cat "$POWERRTC")" -gt "$(cat "$OLD_POWER_WAKECOUNT")" ] ; then
echo "usb power"
elif [ "$(cat "$MODEMUPRTC")" -gt "$(cat "$OLD_MODEM_WAKECOUNT")" ] ; then
echo "modem"
elif [ "$(cat "$WAKEUPRTC")" -gt "$(cat "$OLD_RTC_WAKECOUNT")" ] ; then
echo "rtc"
else
# button does not have a active count so if it's none of the above, it has to be the button
echo "button"
fi
}
getCurState() {
#get the current state of the lock
if xinput list-props "$TOUCH_POINTER_ID" | grep "Device Enabled" | grep -q "0$"; then
if xset q | grep -q "Off: 3"; then
echo "off" #locked, and screen off
else
echo "lock" #locked, but screen on
fi
else
echo "unlock" #normal mode, not locked
fi
}
updateLed() {
#set the LED to reflect the current lock state
case "$(getCurState)" in
"off")
echo 1 > "$REDLED_PATH"
echo 1 > "$BLUELED_PATH"
;;
"lock")
echo 0 > "$REDLED_PATH"
echo 1 > "$BLUELED_PATH"
;;
"unlock")
echo 0 > "$REDLED_PATH"
echo 0 > "$BLUELED_PATH"
;;
esac
}
if [ "$1" != "getCurState" ]; then
d=$(date)
echo "sxmo_screenlock: transitioning to stage $1 ($d)" >&2
fi
if [ "$1" = "lock" ] ; then
#locked state with screen on
# always echo last state first so that user can use it in their hooks
# TODO: Document LASTSTATE
getCurState > "$LASTSTATE"
# Do we want this hook after disabling all the input devices so users can enable certain devices?
sxmo_hooks.sh lock
#turn screen on
xset dpms 0 0 0
xset dpms force on
# TODO: Could be improved by running xinput and disabling ALL input devices automatically but would need
# to decide on the hook issues. Do we want a prelock and postlock? Or should users
# be expected to edit the source code for disabling certain input devices?
# this code allows us to not use the slock locking mechanism in the original sxmo_lock.sh
# when combined with a working slock (see ~iv's) implementation, this should be secure.
xinput disable "$TOUCH_POINTER_ID"
killall lisgd
updateLed
exit 0
elif [ "$1" = "unlock" ] ; then
#normal unlocked state, screen on
getCurState > "$LASTSTATE"
sxmo_hooks.sh unlock
#turn screen back on
xset dpms 0 0 0
xset dpms force on
#start responding to touch input again
xinput enable "$TOUCH_POINTER_ID"
sxmo_hooks.sh lisgdstart &
echo 16000 > "$NETWORKRTCSCAN"
updateLed
exit 0
elif [ "$1" = "off" ] ; then
#locked state with screen off
getCurState > "$LASTSTATE"
# TODO: document this hook
sxmo_hooks.sh screenoff
#turn screen off, but have dpms temporarily enable
#the screen when a button is pressed
xset dpms 0 0 3
xset dpms force off
# stop responding to touch input
xinput disable "$TOUCH_POINTER_ID"
killall lisgd
updateLed
exit 0
elif [ "$1" = "crust" ] ; then
getCurState > "$LASTSTATE"
# USER MUST USE sxmo_screenlock.sh rtc rather than using rtcwake directly.
# With this new version of lock, we dont check the exit code of the user hook. User must execute "sxmo_screenlock.sh rtc $TIME" at the end of their hook (depending on whether they want to re-rtc)
echo 1 > "$REDLED_PATH"
echo 0 > "$BLUELED_PATH"
saveAllEventCounts
sxmo_hooks.sh presuspend
#turn screen off
xset dpms force off
suspend_time="$(($(mnc)-10))"
YEARS8_TO_SEC=268435455
if [ "$suspend_time" -gt "$YEARS8_TO_SEC" ]; then
suspend_time="$YEARS8_TO_SEC"
fi
if [ "$suspend_time" -gt 0 ]; then
#The actual suspension to crust happens here, mediated by rtcwake
rtcwake -m mem -s "$suspend_time"
#We woke up again
UNSUSPENDREASON=$(whichWake)
else
UNSUSPENDREASON=rtc # we fake the crust for those seconds
fi
echo "$UNSUSPENDREASON" > "$UNSUSPENDREASONFILE"
echo "crust" > "$LASTSTATE"
updateLed
d=$(date)
echo "sxmo_screenlock: woke up from crust (reason=$UNSUSPENDREASON) ($d)" >&2
if [ "$UNSUSPENDREASON" != "rtc" ]; then
#turn screen on only when we didn't wake up from an rtc event
xset dpms force on
fi
if [ "$UNSUSPENDREASON" != "modem" ]; then
echo 1200 > "$NETWORKRTCSCAN"
fi
#this will in turn invoke the postwake hook
sxmo_postwake.sh "$UNSUSPENDREASON"
exit 0
elif [ "$1" = "getCurState" ] ; then
getCurState
exit 0
elif [ "$1" = "updateLed" ] ; then
updateLed
exit 0
fi
echo "usage: sxmo_screenlock.sh [lock|unlock|off|crust|rtc|getCurState|updateLed]">&2