recipes/pandora-system/pandora-scripts/op_power.sh

   1 #!/bin/bash
   2
   3 . /usr/pandora/scripts/op_paths.sh
   4
   5 # XXX: better use lockfile (or something), but it's not in current firmware
   6 test -e /tmp/op_power.lock && exit 2
   7 touch /tmp/op_power.lock
   8
   9 debug(){
  10         return 1 # 0 when debugging, 1 when not
  11 }
  12
  13 test -e $(grep /etc/passwd -e $(ps u -C xfce4-session | tail -n1 | awk '{print $1}')| cut -f 6 -d ":")/.lidconfig && lidconfig=$(cat $(grep /etc/passwd -e $(ps u -C xfce4-session | tail -n1 | awk '{print $1}')| cut -f 6 -d ":")/.lidconfig) # read lid conf. file if it exists
  14
  15 #powerbuttonconfig=$(cat $(grep /etc/passwd -e $(ps u -C xfce4-session | tail -n1 | awk '{print $1}')| cut -f 6 -d ":")/.powerbuttonconfig)
  16
  17 if [ -e /tmp/powerstate ]; then
  18         powerstate="$(cat /tmp/powerstate)"
  19 else
  20         powerstate="on"
  21 fi
  22
  23 debug && echo "powerstate=$powerstate"
  24
  25 suspend_net() {
  26         hcistate=$(hciconfig hci0 | grep DOWN)
  27         if [ $hcistate ]; then
  28                 echo "down" > /tmp/hcistate
  29         else
  30                 echo "up" > /tmp/hcistate
  31                 hciconfig hci0 down
  32         fi
  33         wlstate=$(lsmod | grep -m1 wl1251)
  34         if [ -z "$wlstate" ]; then
  35                 echo "down" > /tmp/wlstate
  36         else
  37                 echo "up" > /tmp/wlstate
  38                 ifconfig wlan0 down
  39                 rmmod board_omap3pandora_wifi 2> /dev/null
  40                 rmmod wl1251_sdio wl1251
  41         fi
  42 }
  43
  44 resume_net() {
  45         hcistate=$(cat /tmp/hcistate)
  46         if [ "$hcistate" = "up" ]; then
  47                 hciconfig hci0 up pscan
  48         fi
  49         wlstate=$(cat /tmp/wlstate)
  50         if [ "$wlstate" = "up" ]; then
  51                 /etc/init.d/wl1251-init start
  52         fi
  53         rm -f /tmp/hcistate /tmp/wlstate
  54 }
  55
  56 lowPowerOn(){ #switch from normal to lowpower mode
  57         cat /proc/pandora/cpu_mhz_max > /tmp/oldspeed
  58         cat $SYSFS_BACKLIGHT_BRIGHTNESS > /tmp/oldbright
  59         pidlist=$(pstree -lpA | grep pnd_run.sh | sed -ne 's/.*(\([0-9]\+\))/\1/p')
  60         for PID in $pidlist
  61         do
  62                 kill -19 $PID #send SIGSTOP
  63         done
  64         suspend_net
  65         echo 0 > $SYSFS_BACKLIGHT_BRIGHTNESS
  66         echo 1 > /sys/devices/platform/omapfb/graphics/fb0/blank
  67         /usr/pandora/scripts/op_cpuspeed.sh 125
  68 }
  69
  70 lowPowerOff(){ # switch from lowpower to normal mode
  71         oldspeed=$(cat /tmp/oldspeed)
  72         /usr/pandora/scripts/op_cpuspeed.sh $oldspeed
  73         oldbright=$(cat /tmp/oldbright)
  74         maxbright=$(cat $SYSFS_BACKLIGHT/max_brightness)
  75         echo 0 > /sys/devices/platform/omapfb/graphics/fb0/blank
  76         sleep 0.1s # looks cleaner, could flicker without
  77         oldspeed=$(cat /tmp/oldspeed)
  78         if [ $oldbright -ge 3 ] && [ $oldbright -le $maxbright ]; then
  79                 /usr/pandora/scripts/op_bright.sh $oldbright
  80         else
  81                 /usr/pandora/scripts/op_bright.sh $maxbright
  82         fi
  83         resume_net
  84         pidlist=$(pstree -lpA | grep pnd_run.sh | sed -ne 's/.*(\([0-9]\+\))/\1/p')
  85         for PID in $pidlist
  86         do
  87                 kill -18 $PID #send SIGCONT
  88         done
  89         echo 255 > /sys/class/leds/pandora\:\:power/brightness #power LED bright
  90 }
  91
  92 suspend_real() {
  93         delay=0
  94
  95         # FIXME: fix the kernel and get rid of this
  96         suspend_net
  97
  98         # get rid of modules that prevent suspend due to bugs
  99         modules="$(lsmod | awk '{print $1}' | xargs echo)"
 100         blacklist="ehci_hcd g_zero g_audio g_ether g_serial g_midi gadgetfs g_file_storage
 101                 g_mass_storage g_printer g_cdc g_multi g_hid g_dbgp g_nokia g_webcam g_ncm g_acm_ms"
 102         restore_list=""
 103         for mod in $modules; do
 104                 if echo $blacklist | grep -q "\<$mod\>"; then
 105                         restore_list="$restore_list $mod"
 106                         rmmod $mod
 107                         delay=1 # enough?
 108                 fi
 109         done
 110
 111         # must unmount cards because they will be "ejected" on suspend
 112         # (some filesystems may even deadlock if we don't do this due to bugs)
 113         grep "/dev/mmcblk" /proc/mounts | awk '{print $1}' | xargs umount -r
 114
 115         sleep $delay
 116         echo mem > /sys/power/state
 117
 118         # if we are here, either we already resumed or the suspend failed
 119         if [ -n "$restore_list" ]; then
 120                 modprobe $restore_list
 121         fi
 122
 123         resume_net
 124         echo 255 > /sys/class/leds/pandora\:\:power/brightness
 125
 126         # wait here a bit to prevent this script from running again (keep op_power.lock)
 127         # in case user did resume using the power switch.
 128         sleep 2
 129 }
 130
 131 suspend_() {
 132         # dim power LED
 133         echo 16 > /sys/class/leds/pandora\:\:power/brightness
 134
 135         if [ -e /sys/power/state ]; then
 136                 suspend_real
 137         else
 138                 lowPowerOn
 139         fi
 140 }
 141
 142 resume() {
 143         if [ -e /sys/power/state ]; then
 144                 # nothing to do
 145                 echo "resume called unexpectedly" >&2
 146         else
 147                 lowPowerOff
 148         fi
 149 }
 150
 151 suspend_check() {
 152         if [ -e /sys/power/state ]; then
 153                 # in case of real suspend we've already resumed
 154                 powerstate="on"
 155         fi
 156 }
 157
 158 shutdown(){ # warns the user and shuts the pandora down
 159         xfceuser=$(ps u -C xfce4-session | tail -n1 | awk '{print $1}')
 160         time=5
 161         countdown () {
 162                 for i in $(seq $time); do
 163                         precentage=$(echo $i $time | awk '{ printf("%f\n", $1/$2*100) }')
 164                         echo $precentage
 165                         echo "# Shutdown in $(($time-$i))"
 166                         sleep 1
 167                 done
 168         }
 169         countdown | su -c 'DISPLAY=:0.0 zenity --progress --auto-close --text "Shutdown in X" --title "Shutdown"' $xfceuser
 170         if [ $? -eq 0 ]; then
 171         /sbin/shutdown -h now
 172         else
 173         su -c 'DISPLAY=:0.0 zenity --error --text "Shutdown aborted!"' $xfceuser
 174         fi
 175 }
 176
 177 displayOn(){ # turns the display on
 178         #echo 0 > /sys/devices/platform/omapfb/graphics/fb0/blank
 179         #sleep 0.1s # looks cleaner, could flicker without
 180         maxbright=$(cat $SYSFS_BACKLIGHT/max_brightness)
 181         oldbright=0
 182         if [ -f /tmp/oldbright ]; then
 183                 oldbright=$(cat /tmp/oldbright)
 184         fi
 185         if [ $oldbright -eq 0 ]; then
 186                 oldbright=$(cat /etc/pandora/conf/brightness.state)
 187         fi
 188         if [ $oldbright -ge 3 ] && [ $oldbright -le $maxbright ]; then
 189                 /usr/pandora/scripts/op_bright.sh $oldbright
 190         else
 191                 /usr/pandora/scripts/op_bright.sh $maxbright
 192         fi
 193 }
 194
 195 displayOff(){ # turns the display off
 196         brightness=$(cat $SYSFS_BACKLIGHT_BRIGHTNESS)
 197         if [ $brightness -gt 0 ]; then
 198                 echo $brightness > /tmp/oldbright
 199         fi
 200         echo 0 > $SYSFS_BACKLIGHT_BRIGHTNESS
 201         #echo 1 > /sys/devices/platform/omapfb/graphics/fb0/blank
 202 }
 203
 204 if [[ "$2" == "" ]]; then
 205         if [[ "$1" -le 2 ]]; then # power button was pressed 1-2sec, "suspend"
 206                 if [[ "$powerstate" == "buttonlowpower" ]]; then
 207                         (debug && echo "resume") || resume
 208                         powerstate="on"
 209                 elif [[ "$powerstate" == "on" ]]; then
 210                         (debug && echo "suspend") || suspend_
 211                         powerstate="buttonlowpower"
 212                         suspend_check
 213                 fi
 214         elif [[ "$1" -ge 3 ]]; then # power button was pressed 3 sec or longer, shutdown
 215                 if [[ "$powerstate" == "on" ]]; then
 216                         (debug && echo "shutdown") || shutdown
 217                 fi
 218         fi
 219 elif [[ "$2" == "lid" ]]; then
 220         if [[ "$1" == 0 ]]; then # lid was opened
 221                 if [[ "$powerstate" == lid* ]]; then
 222                         case "$lidconfig" in
 223                                 "lowpower")
 224                                         (debug && echo "resume") || resume
 225                                         powerstate="on"
 226                                 ;;
 227                                 *)
 228                                         (debug && echo "displayOn") || displayOn
 229                                         powerstate="on"
 230                                 ;;
 231                         esac
 232                 fi
 233         elif [[ "$1" == 1 ]]; then # lid was closed
 234                 if [[ "$powerstate" == "on" ]]; then
 235                         case "$lidconfig" in
 236                                 "shutdown")
 237                                         (debug && echo "shutdown") || shutdown
 238                                 ;;
 239                                 "lowpower")
 240                                         (debug && echo "suspend") || suspend_
 241                                         powerstate="lidlowpower"
 242                                         suspend_check
 243                                 ;;
 244                                 *)
 245                                         (debug && echo "displayOff") || displayOff
 246                                         powerstate="liddisplayoff"
 247                                 ;;
 248                         esac
 249                 fi
 250         fi
 251  fi
 252 debug && echo "powerstate=$powerstate"
 253 echo "$powerstate" > /tmp/powerstate
 254
 255 rm -f /tmp/op_power.lock