#!/bin/sh

#
#  A power control script for the D800.
#  K.Lawas
#
#

PATH=/bin:/usr/bin:/usr/X11R6/bin:/usr/sbin
DISPLAY=localhost:0.0

KERNEL=`uname -r |cut -f 2 -d .` || 6

case $1 in
    sleep)
        # shut off the LCD and stop the processor
        xhost +local:
        xset -display :0 dpms force off
        sleep 1
        echo 1 > /proc/acpi/sleep
        echo "Waking..."
        ;;
    slow)
        # confine cpu0 down to 600MHz and set policy to powersave
        if [ "$KERNEL" == "4" ]; then
          echo "0%0%0%powersave" > /proc/cpufreq
        else
          echo "powersave" > \
            /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
        fi
        # hdparm -B 1 /dev/hda
        echo "Powersave policy activated"
        ;;
    fast)
        # confine cpu0 to 1.6GHz and set policy to performance
        if [ "$KERNEL" == "4" ]; then
          echo "0%100%100%performance" > /proc/cpufreq
        else
          echo "performance" > \
          /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
        fi
        # hdparm -B 255 /dev/hda
        echo "Performance policy activated"
        ;;
    normal)
        # restore default power scheme
        if [ "$KERNEL" == "4" ]; then
          echo "0%0%100%performance" > /proc/cpufreq
        else
          echo "performance" > \
          /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor          
        fi
        # hdparm -B 128
        echo "Default policy activated"
        ;;
    *)
        # how did we get here
        echo "Usage: " `basename $0` "sleep|slow|fast|normal"
        exit 1
        ;;
esac

if [ "$KERNEL" == "6" ]; then
  echo "current cpu freq is " \
    `cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq`
fi

# in 2.6, we also have the less useful
# echo "userspace" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
# echo "600000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed