#!/bin/bash
-( test -e /tmp/op_power.lock && exit 2 ) || touch "/tmp/op_power.lock"
+. /usr/pandora/scripts/op_paths.sh
+
+# XXX: better use lockfile (or something), but it's not in current firmware
+test -e /tmp/op_power.lock && exit 2
+touch /tmp/op_power.lock
debug(){
return 1 # 0 when debugging, 1 when not
debug && echo "powerstate=$powerstate"
-lowPowerOn(){ #switch from normal to lowpower mode
- cat /proc/pandora/cpu_mhz_max > /tmp/oldspeed
- cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/brightness > /tmp/oldbright
- pidlist=$(pstree -lpA | grep pnd_run.sh | sed -ne 's/.*(\([0-9]\+\))/\1/p')
- for PID in $pidlist
- do
- kill -19 $PID #send SIGSTOP
- done
- rm /tmp/hcistate
+suspend_net() {
hcistate=$(hciconfig hci0 | grep DOWN)
if [ $hcistate ]; then
echo "down" > /tmp/hcistate
else
+ echo "up" > /tmp/hcistate
hciconfig hci0 down
fi
- rm /tmp/wlstate
wlstate=$(lsmod | grep -m1 wl1251)
- if [ ! $wlstate ]; then
+ if [ -z "$wlstate" ]; then
echo "down" > /tmp/wlstate
else
+ echo "up" > /tmp/wlstate
ifconfig wlan0 down
- rmmod board_omap3pandora_wifi wl1251_sdio wl1251
+ rmmod board_omap3pandora_wifi 2> /dev/null
+ rmmod wl1251_sdio wl1251
fi
- echo 0 > /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/brightness
- echo 1 > /sys/devices/platform/omapfb/graphics/fb0/blank
- echo 16 > /sys/class/leds/pandora\:\:power/brightness #dim power LED
- /usr/pandora/scripts/op_cpuspeed.sh 125
}
-lowPowerOff(){ # switch from lowpower to normal mode
- oldspeed=$(cat /tmp/oldspeed)
- /usr/pandora/scripts/op_cpuspeed.sh $oldspeed
- oldbright=$(cat /tmp/oldbright)
- maxbright=$(cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/max_brightness)
- echo 0 > /sys/devices/platform/omapfb/graphics/fb0/blank
- sleep 0.1s # looks cleaner, could flicker without
- oldspeed=$(cat /tmp/oldspeed)
+resume_net() {
+ hcistate=$(cat /tmp/hcistate)
+ if [ "$hcistate" = "up" ]; then
+ hciconfig hci0 up pscan
+ fi
+ wlstate=$(cat /tmp/wlstate)
+ if [ "$wlstate" = "up" ]; then
+ /etc/init.d/wl1251-init start
+ fi
+ rm -f /tmp/hcistate /tmp/wlstate
+}
+
+display_on() {
+ echo 0 > /sys/class/graphics/fb0/blank
+
+ # only bother restoring brightness if it's 0
+ # (old kernel or user messed it up somehow)
+ brightness=$(cat $SYSFS_BACKLIGHT_BRIGHTNESS)
+ if [ $brightness -gt 0 ]; then
+ return 0
+ fi
+
+ maxbright=$(cat $SYSFS_BACKLIGHT/max_brightness)
+ oldbright=0
+ if [ -f /tmp/oldbright ]; then
+ oldbright=$(cat /tmp/oldbright)
+ fi
+ if [ $oldbright -eq 0 ]; then
+ oldbright=$(cat /etc/pandora/conf/brightness.state)
+ fi
if [ $oldbright -ge 3 ] && [ $oldbright -le $maxbright ]; then
/usr/pandora/scripts/op_bright.sh $oldbright
else
/usr/pandora/scripts/op_bright.sh $maxbright
fi
- hcistate=$(cat /tmp/hcistate)
- if [ ! $hcistate ]; then
- hciconfig hci0 up pscan
+}
+
+display_off() {
+ brightness=$(cat $SYSFS_BACKLIGHT_BRIGHTNESS)
+ if [ $brightness -gt 0 ]; then
+ echo $brightness > /tmp/oldbright
fi
- wlstate=$(cat /tmp/wlstate)
- if [ ! $wlstate ]; then
- /etc/init.d/wl1251-init start
+ kernel_major=`uname -r | cut -c 1`
+ if [ "$kernel_major" = "2" ]; then
+ echo 0 > $SYSFS_BACKLIGHT_BRIGHTNESS
fi
+
+ echo 1 > /sys/class/graphics/fb0/blank
+}
+
+lowPowerOn(){ #switch from normal to lowpower mode
+ display_off
+
+ pidlist=$(pstree -lpA | grep pnd_run.sh | sed -ne 's/.*(\([0-9]\+\))/\1/p')
+ for PID in $pidlist
+ do
+ kill -STOP $PID
+ done
+
+ suspend_net
+
+ cat /proc/pandora/cpu_mhz_max > /tmp/oldspeed
+ /usr/pandora/scripts/op_cpuspeed.sh -n 125
+}
+
+lowPowerOff(){ # switch from lowpower to normal mode
+ oldspeed=$(cat /tmp/oldspeed)
+ /usr/pandora/scripts/op_cpuspeed.sh -n $oldspeed
+ rm -f /tmp/oldspeed
+
+ display_on
+ resume_net
+
pidlist=$(pstree -lpA | grep pnd_run.sh | sed -ne 's/.*(\([0-9]\+\))/\1/p')
for PID in $pidlist
do
- kill -18 $PID #send SIGCONT
+ kill -CONT $PID
done
echo 255 > /sys/class/leds/pandora\:\:power/brightness #power LED bright
}
+display_on_with_checks() {
+ # after turning on the display, we don't want lowpower state
+ # (which could be active because of some races)
+ if [ "$powerstate" = "buttonlowpower" -o "$powerstate" = "lidlowpower" -o \
+ -e /tmp/oldspeed ]
+ then
+ lowPowerOff
+ else
+ display_on
+ fi
+}
+
+show_message() {
+ # TODO: check if desktop is visible; maybe use layer3?
+ xfceuser=$(ps u -C xfce4-session | tail -n1 | awk '{print $1}')
+ cmd="DISPLAY=:0.0 zenity --info --text \"$1\" --timeout 10"
+ su -c "$cmd" $xfceuser
+}
+
+suspend_real() {
+ delay=0
+
+ if ! [ -e /sys/power/state ]; then
+ # no kernel suspend support
+ return 1
+ fi
+
+ current_now="$(cat /sys/class/power_supply/bq27500-0/current_now)"
+
+ if [ $current_now -gt 0 ]; then
+ return 1
+ #don't suspend while unit is charging
+ fi
+
+ # can't suspend while SGX is in use due to bugs
+ # (prevents low power states and potential lockup)
+ if lsof -t /dev/pvrsrvkm > /dev/null; then
+ return 1
+ fi
+
+ if ! grep -q 'mmc_core.removable=0' /proc/cmdline; then
+ # must unmount cards because they will be "ejected" on suspend
+ # (some filesystems may even deadlock if we don't do this due to bugs)
+ mounts="$(grep "/dev/mmcblk" /proc/mounts | awk '{print $1}' | xargs echo)"
+ for mnt in $mounts; do
+ if ! umount $mnt; then
+ show_message "Could not unmount $mnt, using partial suspend only"
+ return 1
+ fi
+ done
+ swaps="$(grep "/dev/mmcblk" /proc/swaps | awk '{print $1}' | xargs echo)"
+ for swp in $swaps; do
+ if ! swapoff $swp; then
+ show_message "Could not unmount $swp, using partial suspend only"
+ return 1
+ fi
+ done
+ else
+ if [ ! -e /etc/pandora/suspend-warned ]; then
+ show_message "Pandora will now suspend.\n\n\
+Please do not remove SD cards while pandora is suspended, doing so will corrupt them."
+ touch /etc/pandora/suspend-warned
+ fi
+ fi
+
+ # FIXME: fix the kernel and get rid of this
+ suspend_net
+
+ # get rid of modules that prevent suspend due to bugs
+ modules="$(lsmod | awk '{print $1}' | xargs echo)"
+ blacklist="g_zero g_audio g_ether g_serial g_midi gadgetfs g_file_storage
+ g_mass_storage g_printer g_cdc g_multi g_hid g_dbgp g_nokia g_webcam g_ncm g_acm_ms
+ ehci_hcd bridgedriver"
+ restore_list=""
+ for mod in $modules; do
+ if echo $blacklist | grep -q "\<$mod\>"; then
+ restore_list="$restore_list $mod"
+ rmmod $mod
+ delay=1 # enough?
+ fi
+ done
+
+ sleep $delay
+ sync
+ echo mem > /sys/power/state
+
+ # if we are here, either we already resumed or the suspend failed
+ if [ -n "$restore_list" ]; then
+ for module in $restore_list; do
+ modprobe $module
+ done
+ fi
+
+ display_on
+ resume_net
+ echo 255 > /sys/class/leds/pandora\:\:power/brightness
+
+ # wait here a bit to prevent this script from running again (keep op_power.lock)
+ # in case user did resume using the power switch.
+ sleep 2
+
+ return 0
+}
+
+suspend_() {
+ # dim power LED
+ echo 16 > /sys/class/leds/pandora\:\:power/brightness
+
+ if suspend_real; then
+ # resumed already
+ powerstate="on"
+ else
+ lowPowerOn
+ fi
+}
+
+resume() {
+ if [ "$powerstate" = "on" ]; then
+ # nothing to do
+ echo "resume called unexpectedly" >&2
+ else
+ lowPowerOff
+ fi
+}
+
shutdown(){ # warns the user and shuts the pandora down
xfceuser=$(ps u -C xfce4-session | tail -n1 | awk '{print $1}')
time=5
fi
}
-displayOn(){ # turns the display on
- #echo 0 > /sys/devices/platform/omapfb/graphics/fb0/blank
- #sleep 0.1s # looks cleaner, could flicker without
- maxbright=$(cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/max_brightness)
- oldbright=0
- if [ -f /tmp/oldbright ]; then
- oldbright=$(cat /tmp/oldbright)
- fi
- if [ $oldbright -eq 0 ]; then
- oldbright=$(cat /etc/pandora/conf/brightness.state)
- fi
- if [ $oldbright -ge 3 ] && [ $oldbright -le $maxbright ]; then
- /usr/pandora/scripts/op_bright.sh $oldbright
- else
- /usr/pandora/scripts/op_bright.sh $maxbright
- fi
-}
-
-displayOff(){ # turns the display off
- brightness=$(cat /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/brightness)
- if [ $brightness -gt 0 ]; then
- echo $brightness > /tmp/oldbright
- fi
- echo 0 > /sys/devices/platform/twl4030-pwm0-bl/backlight/twl4030-pwm0-bl/brightness
- #echo 1 > /sys/devices/platform/omapfb/graphics/fb0/blank
-}
-
if [[ "$2" == "" ]]; then
if [[ "$1" -le 2 ]]; then # power button was pressed 1-2sec, "suspend"
if [[ "$powerstate" == "buttonlowpower" ]]; then
- (debug && echo "lowPowerOff") || lowPowerOff
+ (debug && echo "resume") || resume
powerstate="on"
elif [[ "$powerstate" == "on" ]]; then
- (debug && echo "lowPowerOn") || lowPowerOn
powerstate="buttonlowpower"
+ (debug && echo "suspend") || suspend_
+ elif [[ "$powerstate" == "liddisplayoff" ]]; then
+ powerstate="buttonlowpower"
+ (debug && echo "suspend") || suspend_
fi
elif [[ "$1" -ge 3 ]]; then # power button was pressed 3 sec or longer, shutdown
if [[ "$powerstate" == "on" ]]; then
if [[ "$powerstate" == lid* ]]; then
case "$lidconfig" in
"lowpower")
- (debug && echo "lowPowerOff") || lowPowerOff
+ (debug && echo "resume") || resume
powerstate="on"
;;
*)
- (debug && echo "displayOn") || displayOn
+ (debug && echo "display_on") || display_on_with_checks
powerstate="on"
;;
esac
(debug && echo "shutdown") || shutdown
;;
"lowpower")
- (debug && echo "lowPowerOn") || lowPowerOn
powerstate="lidlowpower"
+ (debug && echo "suspend") || suspend_
;;
*)
- (debug && echo "displayOff") || displayOff
+ (debug && echo "display_off") || display_off
powerstate="liddisplayoff"
;;
esac
fi
fi
- fi
+elif [[ "$2" == "screensaver" ]]; then
+ # warning: don't try to interact with X or do real suspend here -
+ # will cause various deadlocks
+ unset DISPLAY
+
+ if [[ "$1" == 0 ]]; then # deactivate screensaver
+ display_on_with_checks
+ powerstate="on"
+ elif [[ "$1" == 1 ]]; then # activate screensaver
+ display_off
+ fi
+fi
+
debug && echo "powerstate=$powerstate"
echo "$powerstate" > /tmp/powerstate
-
+rm -f /tmp/op_power.lock
git.openpandora.org / openpandora.oe.git / blobdiff