# emerge -v sys-kernel/suspend2-sources sys-apps/suspend2-userui sys-power/hibernate-script x11-drivers/ati-drivers

# cd /usr/src/linux
# patch -p1 < /path/to/linux-2.6.15_ide-gtm-stm.diff

# cd /usr/src/linux
# patch -p1 < /path/to/centrino-voltages.diff

Power management options (ACPI, APM)  ---> 

--- Power Management support
 [*]   Legacy Power Management API
 [ ]   Power Management Debug Support
 [*] Software Suspend
 (/dev/hda2) Default resume partition
 [ ]   Encrypt suspend image
 [*] Suspend2  --->         
     ACPI (Advanced Configuration and Power Interface) Support  --->
     APM (Advanced Power Management) BIOS Support  --->             
     CPU Frequency scaling  ---> 

--- Suspend2                                      
 ---   Image Storage (you need at least one writer)
 [ ]     File Writer                               
 [*]     Swap Writer                               
 ---   General Options                             
 ()      Default resume device name                
 [ ]     Allow Keep Image Mode

[*] CPU Frequency scaling                                       
 [*]   Enable CPUfreq debugging                                 
 <*>   CPU frequency translation statistics                     
 [*]     CPU frequency translation statistics details          
       Default CPUFreq governor (performance)  --->            
 ---   'performance' governor                                  
 <*>   'powersave' governor                                    
 <*>   'userspace' governor for userspace frequency scaling    
 <*>   'ondemand' cpufreq policy governor                      
 <*>   'conservative' cpufreq governor                         
 ---   CPUFreq processor drivers    
<M>   ACPI Processor P-States driver                           
 < >   AMD Mobile K6-2/K6-3 PowerNow!                          
 < >   AMD Mobile Athlon/Duron PowerNow!                       
 < >   AMD Opteron/Athlon64 PowerNow!                          
 < >   Cyrix MediaGX/NatSemi Geode Suspend Modulation          
 <M>   Intel Enhanced SpeedStep                                  
 [*]     Use ACPI tables to decode valid frequency/voltage pairs 
 [*]     Built-in tables for Banias CPUs                         
 <M>   Intel Speedstep on ICH-M chipsets (ioport interface)      
 <M>   Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)
 <M>   Intel Pentium 4 clock modulation                          
 < >   nVidia nForce2 FSB changing                               
 < >   Transmeta LongRun                                         
 ---   shared options                                                
 [ ]   /proc/acpi/processor/../performance interface (deprecated)    
 [*]   Relaxed speedstep capability checks 

speedstep_centrino

alias eth0 tg3

alias eth1 ipw2200
post-install ipw2200 modprobe ieee80211_crypt_tkip

 
# modules-update

### acpi_sleep
## To use ACPI to suspend your machine (via /proc/acpi/sleep), comment out
## all the options above for Software Suspend 2 and sysfs, and uncomment this
## line. The number refers to the ACPI sleep state - 3 is suspend-to-RAM and
## 4 is suspend-to-disk.
UseACPISleep 3

##############################################################################
### Some global settings
##############################################################################

Verbosity 0
LogFile /var/log/hibernate.log
LogVerbosity 1
AlwaysForce yes
AlwaysKill yes
HibernateVT 15
Distribution gentoo
# XDisplay :0

##############################################################################
### Scriptlets
###   Scriptlets provide support for doing all sorts of things before and after
###   suspending. The defaults settings here should work for most people, but
###   you may wish to edit these to taste. Consult "hibernate -h" for help on
###   the configuration settings.
##############################################################################

### clock
SaveClock restore-only

### diskcache
DisableWriteCacheOn /dev/hda

### filesystems
UnmountFSTypes smbfs nfs

### lock (generally you only want one of the following options)
LockXScreenSaver yes

### misclaunch
OnSuspend 90 touch /var/state/suspend2ram
OnSuspend 95 sync
OnSuspend 95 sync
OnSuspend 95 sync
OnResume 90 /sbin/rc auto

### modules
UnloadAllModules yes

### modules-gentoo
GentooModulesAutoload yes

### network
DownInterfaces auto

### services
RestartServices alsasound

### xstatus
## This can be set to gnome, kde or x:
XStatus gnome

#  emerge -v sys-power/acpid sys-power/powermgmt-base 

   
#!/bin/sh
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-power/acpid/files/acpid-1.0.4-default.sh,v 1.1 2005/03/15 19:15:53 ciaranm Exp $

# Default acpi script that takes an entry for all actions

set $*

group=${1/\/*/}
action=${1/*\//}

case "$group" in
#       button)
#               case "$action" in
#                       *)      logger "ACPI action $action is not defined"
#                               ;
#               esac
#               ;;
#
#       *)
#               logger "ACPI group $group / action $action is not defined"
#               ;;
esac

event=ac_adapter
action=/etc/acpi/actions/pmg_ac_adapter.sh %e

event=button[ /]lid
action=/etc/acpi/actions/pmg_lid.sh %e

event=button[ /]power
action=/etc/acpi/actions/pmg_power.sh %e

#!/bin/sh
if on_ac_power
then
        logger "$0 - running on AC"
else
        logger "$0 - running on BATTERY"
fi

/sbin/rc auto

#!/bin/sh 
 
### CONFIGURE HERE ###
LID="/proc/acpi/button/lid/C1F3/state"
STATE="/var/state/suspend2ram"
### CONFIGURE END  ###

MSG="$0 - LID Button"

if grep -qi "close" $LID
then
	logger "$MSG CLOSED"
	if [ ! -e $STATE ]
	then
		logger "$MSG - Suspend2Ram"
		hibernate-ram
	else
		logger "$MSG - old $STATE found"
	fi
else
	logger "$MSG OPENED"
fi

exit 0

#!/bin/sh

### CONFIGURE HERE ###
STATE="/var/state/suspend2ram"
### CONFIGURE END  ###

MSG="$0 - Power Button"
logger "$MSG pressed"

if [ -e $STATE ]
then
        logger "$MSG - Resuming from Suspend2Ram"
        rm -f $STATE
else
        logger "$MSG - shutdown?"
        shutdown -h now
fi

exit 0

# cd /etc/acpi/actions/
# chmod 755 *

# /etc/init.d/acpid restart

# tailf /var/log/acpid

# cp -av /etc/runlevels/default /etc/runlevels/battery

# rc-update -s
 
               acpid | battery      default
           alsasound | battery      default
             apache2 |
            bootmisc |         boot
                ccsd |
             checkfs |         boot
           checkroot |         boot
               clock |         boot
                cman |
         consolefont |         boot
            cpufreqd |
        cpufrequtils |
         crypto-loop |
               cupsd | battery      default
                dbus |
             distccd |              default
                 dlm |
          domainname |         boot
                drbd |
              esound |
                famd |
              fenced |
                 gfs |
                 gpm | battery      default
                hald |
              hdparm |         boot
   hibernate-cleanup |         boot
            hostname |         boot
             hotplug |
         idlewatcher | battery
               ipsec | battery      default
            iptables |
             keymaps |         boot
         laptop_mode | battery      default
               local | battery      default nonetwork
          localmount |         boot
             modules |         boot
            net.eth0 | battery      default
            net.eth1 | battery      default
              net.lo |         boot
            netmount | battery      default
                 nfs | battery      default
            nfsmount | battery      default
                nscd |
          ntp-client | battery      default
                ntpd |
             numlock |
           pgcluster |
                pglb |
         pgreplicate |
             portmap | battery      default
           powernowd | battery
                psad |
               q3ded |
              racoon |
           rmnologin |         boot
              rsyncd |
               spamd |
              splash |         boot
                sshd | battery      default
            svnserve |
           syslog-ng |              default
            timidity |
             urandom |         boot
          vixie-cron |              default
              vmware |              default
                  vz |
                 xdm | battery      default
              xprint |

--- rc.bak      2006-05-17 10:16:54.000000000 +0200
+++ rc  2006-05-17 10:35:39.000000000 +0200
@@ -112,6 +112,7 @@
        echo
        echo -e "${GOOD}Gentoo Linux${GENTOO_VERS}; ${BRACKET}http://www.gentoo.org/${NORMAL}"
        echo -e " Copyright 1999-2005 Gentoo Foundation; Distributed under the GPLv2"
+       echo -e " Patched by JAY for auto-detecting ac_power/battery softlevels"
        echo

        check_statedir /proc
@@ -507,6 +508,25 @@
        export SOFTLEVEL="${argv1}"
 fi

+# patched by JAY
+if [ "${SOFTLEVEL}" = "auto" ]
+then
+       if [ ! -x /usr/bin/on_ac_power ]
+       then
+               SOFTLEVEL="default"
+               ewarn "/usr/bin/on_ac_power not found - fall back to softlevel default"
+       else
+               if on_ac_power
+               then
+                       SOFTLEVEL="default"
+               else
+                       SOFTLEVEL="battery"
+               fi
+               einfo "*** Automatically switching to softlevel: ${SOFTLEVEL}"
+       fi
+fi
+# END patched by JAY
+
 if [ ! -f "${svcdir}/softlevel" ]
 then
        echo "${SOFTLEVEL}" > "${svcdir}/softlevel"

# cd /sbin
# patch -p1 < /path/to/rc-patch.diff

...
#l3:3:wait:/sbin/rc default
l3:3:wait:/sbin/rc auto
...

# /sbin/rc auto

# emerge -v sys-power/powernowd

POWERNOWD_OPTS="-n -u 70 -p 3000"

# less /usr/share/doc/powernowd-0.96/README.gz

# rc-update -a powernowd battery

# /etc/init.d/powernowd start

# grep  MHz /proc/cpuinfo
cpu MHz         : 800.000 

# emerge -v app-laptop/laptop-mode-tools

###############################################################################
#
# Configuration for Laptop Mode Tools
# -----------------------------------
#
# There is a "system" to the configuration setting names:
#    CONTROL_something=0/1   Determines whether Laptop Mode Tools controls 
#                            something
#    LM_something=value      Value of "something" when laptop mode is active
#    NOLM_something=value    Value of "something" when laptop mode is NOT active
#    AC_something=value      Value of "something" when the computer is running
#                            on AC power
#    BATT_something=value    Value of "something when the computer is running on
#                            battery power
#
# There can be combinations of LM_/NOLM_ and AC_/BATT_ prefixes, but the
# available prefixes are different for each setting. The available ones are 
# documented in the manual page, laptop-mode.conf(8). If there is no LM_/NOLM_ 
# in a setting name, then the value is used independently of laptop mode state, 
# and similarly, if there is no AC_/BATT_, then the value is used independently
# of power state.
#
# Some options only work on ACPI systems. They are marked ACPI-ONLY.
#
# Note that this configuration file is a fragment of bash shell script: you
# can use all the features of the bash scripting language to achieve your
# desired configuration.
###############################################################################



###############################################################################
# Configuration debugging
# -----------------------
###############################################################################

# Set this to 1 if you want to see a lot of information when you start/stop 
# laptop_mode.
VERBOSE_OUTPUT=1



###############################################################################
# When to enable laptop mode
# --------------------------
#
# "Laptop mode" is the mode in which laptop mode tools makes the computer
# consume less power. This includes the kernel "laptop_mode" feature, which
# allows your hard drives to spin down, as well as various other settings which
# can be tweaked by laptop mode tools. You can enable or disable all of these
# settings using the CONTROL_... options further down in this config file.
###############################################################################

# Enable laptop mode when on battery power.
ENABLE_LAPTOP_MODE_ON_BATTERY=1

# Enable laptop mode when on AC power.
ENABLE_LAPTOP_MODE_ON_AC=1

# Enable laptop mode when the laptop's lid is closed, even when we're on AC
# power? (ACPI-ONLY)
ENABLE_LAPTOP_MODE_WHEN_LID_CLOSED=0



###############################################################################
# When to enable data loss sensitive features
# -------------------------------------------
#
# When data loss sensitive features are disabled, laptop mode tools acts as if
# laptop mode were disabled, for those features only.
#
# Data loss sensitive features include:
# - laptop_mode (i.e., delayed writes)
# - hard drive write cache
#
# All of the options that follow can be set to 0 in order to prevent laptop
# mode tools from using them to stop data loss sensitive features. Use this
# when you have a battery that reports the wrong information, that confuses
# laptop mode tools.
#
# Disabling data loss sensitive features is ACPI-ONLY.
###############################################################################

# Disable all data loss sensitive features when the battery level (in % of the
# battery capacity) reaches this value.
MINIMUM_BATTERY_CHARGE_PERCENT=3

# Disable data loss sensitive features when the battery reports its state
# as "critical".
DISABLE_LAPTOP_MODE_ON_CRITICAL_BATTERY_LEVEL=1


###############################################################################
# Controlled hard drives and partitions
# -------------------------------------
#
# For spinning down your hard drives, laptop mode will remount file systems and
# adjust hard drive spindown timeouts. These parameters specify which
# devices and partitions are affected by laptop mode.
###############################################################################

# The drives that laptop mode controls.
# Separate them by a space, e.g. HD="/dev/hda /dev/hdb". The default is a
# wildcard, which will get you all your IDE and SCSI/SATA drives.
#HD="/dev/[hs]d[abcdefgh]"
HD="/dev/hda"

# The partitions (or mount points) that laptop mode controls.
# Separate the values by spaces. Use "auto" to indicate all partitions on drives
# listed in HD. You can add things to "auto", e.g. "auto /dev/hdc3". You can
# also specify mount points, e.g. "/mnt/data".
PARTITIONS="auto"



###############################################################################
# Hard drive behaviour settings
# -----------------------------
#
# These settings specify how laptop mode tools will adjust the various
# parameters of your hard drives and file systems.
###############################################################################

# Maximum time, in seconds, of work that you are prepared to lose when your
# system crashes or power runs out. This is the maximum time that Laptop Mode
# will keep unsaved data waiting in memory before spinning up your hard drive.
LM_BATT_MAX_LOST_WORK_SECONDS=600
LM_AC_MAX_LOST_WORK_SECONDS=600

# Should laptop mode tools control readahead?
CONTROL_READAHEAD=1

# Read-ahead, in kilobytes. You can spin down the disk while playing MP3/OGG
# by setting the disk readahead to a reasonable size, e.g. 3072 (3 MB).
# Effectively, the disk will read a complete MP3 at once, and will then spin 
# down while the MP3/OGG is playing. Don't set this too high, because the 
# readahead is applied to _all_ files that are read from disk.
LM_READAHEAD=2048
NOLM_READAHEAD=128

# Should laptop mode tools add the "noatime" option to the mount options when 
# laptop mode is enabled?
CONTROL_NOATIME=1

# Should laptop mode tools control the hard drive idle timeout settings?
CONTROL_HD_IDLE_TIMEOUT=1

# Idle timeout values. (hdparm -S)
# Default is 2 hours on AC (NOLM_HD_IDLE_TIMEOUT_SECONDS=7200) and 5 seconds
# for battery and for AC with laptop mode on.
LM_AC_HD_IDLE_TIMEOUT_SECONDS=300
LM_BATT_HD_IDLE_TIMEOUT_SECONDS=60
NOLM_HD_IDLE_TIMEOUT_SECONDS=3600

# Should laptop mode tools control the hard drive power management settings?
CONTROL_HD_POWERMGMT=0

# Power management for HD (hdparm -B values)
BATT_HD_POWERMGMT=1
LM_AC_HD_POWERMGMT=1
NOLM_AC_HD_POWERMGMT=255

# Should laptop mode tools control the hard drive write cache settings?
CONTROL_HD_WRITECACHE=0

# Write cache settings for HD (hdparm -W values)
NOLM_AC_HD_WRITECACHE=1
NOLM_BATT_HD_WRITECACHE=1
LM_HD_WRITECACHE=1



###############################################################################
# CPU frequency scaling and throttling
# ------------------------------------
#
# Laptop mode tools can automatically adjust your kernel CPU frequency
# settings. This includes upper and lower limits and scaling governors.
# There is also support for CPU throttling, on systems that don't support
# frequency scaling.
#
# This feature only works on 2.6 kernels.
###############################################################################

# Should laptop mode tools control the maximum CPU frequency?
CONTROL_CPU_FREQUENCY=0

# Legal values are "slowest" for the slowest speed that your
# CPU is able to operate at, "fastest" for the fastest speed,
# "medium" for some value in the middle, or any value listed in
# /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies.
BATT_CPU_MAXFREQ=medium
BATT_CPU_MINFREQ=slowest
BATT_CPU_GOVERNOR=ondemand
LM_AC_CPU_MAXFREQ=fastest
LM_AC_CPU_MINFREQ=slowest
LM_AC_CPU_GOVERNOR=ondemand
NOLM_AC_CPU_MAXFREQ=fastest
NOLM_AC_CPU_MINFREQ=slowest
NOLM_AC_CPU_GOVERNOR=performance

# Should laptop mode tools control the CPU throttling? This is only useful
# on processors that don't have frequency scaling.
# (Only works when you have /proc/acpi/processor/CPU*/throttling.)
CONTROL_CPU_THROTTLING=0

# Legal values are "maximum" for the maximum (slowest) throttling level,
# "minimum" for minimum (fastest) throttling level, "medium" for a value
# somewhere in the middle (this is usually 50% for P4s), or any value listed
# in /proc/acpi/processor/CPU*/throttling. Be careful when using "maximum":
# this may be _very_ slow (in fact, with P4s it slows down the processor
# by a factor 8).
BATT_CPU_THROTTLING=medium
LM_AC_CPU_THROTTLING=medium
NOLM_AC_CPU_THROTTLING=minimum



###############################################################################
# Syslog configuration control
# ----------------------------
# 
# Syslog daemons have a tendency to sync their log files when entries are
# written to them. This causes disks to spin up, which is not very nice when
# you're trying to save power. The syslog.conf can be tweaked to *not* sync
# a given file, by prepending the log file name with a dash, like this:
#
# 	mail.*		-/var/log/mail/mail.log
#
# Using the following options, you can let laptop mode switch between
# different syslog configurations depending on whether you are working on
# battery or on AC power. To set this up, start by configuring these options
# for your syslog daemon, and then run lm-syslog-setup to create the various
# files. Then edit the laptop mode-specific syslog configuration files to
# remove the syncs only when laptop mode is active.
###############################################################################

# Should laptop mode tools control which syslog.conf should be used?
CONTROL_SYSLOG_CONF=0

# Laptop mode tools controls syslog.conf by replacing /etc/syslog.conf (or
# whatever you specify in SYSLOG_CONF) by a link to the files configured here.
# NOTE: these files are NOT created by default, and if they do not
# exist this feature will not work. You can run the script
# /usr/sbin/lm-syslog-setup to set things up.
LM_AC_SYSLOG_CONF=/etc/syslog-on-ac-with-lm.conf
NOLM_AC_SYSLOG_CONF=/etc/syslog-on-ac-without-lm.conf
BATT_SYSLOG_CONF=/etc/syslog-on-battery.conf

# Signal this program when syslog.conf has been replaced.
SYSLOG_CONF_SIGNAL_PROGRAM=syslogd

# This is the syslog configuration file that should be replaced by a link to the
# other files.
SYSLOG_CONF=/etc/syslog.conf



###############################################################################
# X display settings
# ------------------
#
# Using these settings, you can let laptop mode tools control the X display
# standby timeouts.
###############################################################################

# Should laptop mode tools control DPMS standby settings for X displays?
CONTROL_DPMS_STANDBY=1

# These settings specify the standby timeout for the X display,
# in seconds. The suspend and poweroff timeouts are somewhat
# larger values derived from these values.
BATT_DPMS_STANDBY=60
LM_AC_DPMS_STANDBY=180
NOLM_AC_DPMS_STANDBY=180



###############################################################################
# Terminal settings
# -----------------
#
# Using these settings, you can let laptop mode tools control the terminal
# blanking timeouts.
###############################################################################

# Should laptop mode tools control terminal blanking settings?
CONTROL_TERMINAL=1

# These settings specify the blanking and powerdown timeouts. Note that
# the powerdown timeout is counted from the moment the screen is blanked,
# i.e. BLANK_MINUTES=2 and POWERDOWN_MINUTES=5 means the screen powers
# down after 7 minutes of inactivity. The range for all these settings is
# 1 to 60 minutes, or 0 to disable.
BATT_TERMINAL_BLANK_MINUTES=1
BATT_TERMINAL_POWERDOWN_MINUTES=1
LM_AC_TERMINAL_BLANK_MINUTES=3
LM_AC_TERMINAL_POWERDOWN_MINUTES=3
NOLM_AC_TERMINAL_BLANK_MINUTES=3
NOLM_AC_TERMINAL_POWERDOWN_MINUTES=3



###############################################################################
# Auto-hibernation settings
# -------------------------
#
# Using these settings, you can make laptop mode tools automatically put your
# computer into hibernation when the battery level goes critically low.
#
# This feature only works on ACPI, and only works on computers whose batteries
# give off battery events often enough.
###############################################################################

# Should laptop mode tools perform auto-hibernation?
ENABLE_AUTO_HIBERNATION=1

# The hibernation command that is to be executed when auto-hibernation
# is triggered.
HIBERNATE_COMMAND=/usr/sbin/hibernate

# Auto-hibernation battery level threshold, in percentage of the battery's
# total capacity.
AUTO_HIBERNATION_BATTERY_CHARGE_PERCENT=2

# Enable this to auto-hibernate if the battery reports that its level is
# "critical".
AUTO_HIBERNATION_ON_CRITICAL_BATTERY_LEVEL=1



###############################################################################
# Start/Stop Programs settings
# ----------------------------
#
# Laptop mode tools can automatically start and stop programs when entering
# various power modes. Put scripts accepting "start" and "stop" parameters
# in the directories /etc/laptop-mode/batt-stop, batt-start, lm-ac-stop,
# lm-ac-start, nolm-ac-stop and nolm-ac-start. Laptop mode will call the
# scripts in a state-"stop" directory with the "stop" parameter when entering
# the state in question, and it will call the same scripts with the "start"
# parameter when leaving the state. Scripts in a state-"start" directory are
# called with the "start" parameter when the specified state is entered, and
# with the "stop" parameter when the specified state is left.
###############################################################################

# Should laptop mode start and stop programs? 
CONTROL_START_STOP=0



###############################################################################
# Settings you probably don't want to touch
# -----------------------------------------
#
# It is usually not necessary to change these parameters. They are included
# for completeness' sake.
###############################################################################

# Change mount options on partitions in PARTITIONS? You don't really want to
# disable this. If you do, then your hard drives will probably not spin down
# anymore.
CONTROL_MOUNT_OPTIONS=1

# Dirty synchronous ratio.  At this percentage of dirty pages the process
# which calls write() does its own writeback.
LM_DIRTY_RATIO=60
NOLM_DIRTY_RATIO=40

# Allowed dirty background ratio, in percent.  Once DIRTY_RATIO has been
# exceeded, the kernel will wake pdflush which will then reduce the amount
# of dirty memory to dirty_background_ratio.  Set this nice and low, so once
# some writeout has commenced, we do a lot of it.
LM_DIRTY_BACKGROUND_RATIO=1
NOLM_DIRTY_BACKGROUND_RATIO=10

# kernel default settings -- don't touch these unless you know what you're 
# doing.
DEF_UPDATE=5
DEF_XFS_AGE_BUFFER=15
DEF_XFS_SYNC_INTERVAL=30
DEF_XFS_BUFD_INTERVAL=1
DEF_MAX_AGE=30

# This must be adjusted manually to the value of HZ in the running kernel
# on 2.4, until the XFS people change their 2.4 external interfaces to work in
# centisecs. This can be automated, but it's a work in progress that still
# needs# some fixes. On 2.6 kernels, XFS uses USER_HZ instead of HZ for
# external interfaces, and that is currently always set to 100. So you don't
# need to change this on 2.6.
XFS_HZ=100

# Seconds laptop mode has to to wait after the disk goes idle before doing
# a sync.
LM_SECONDS_BEFORE_SYNC=2

#!/usr/bin/perl
#----------------------------------------------------------------------
#
#       idlewatcher.pl
#
#       watch if keyboard and mouse are idle
#       for some time
#
#       v1.0    2006-05-04      jay
#                               - initial version
#       v1.1    2006-05-17      jay
#                               - added command line options
#       v1.2    2006-05-19      jay
#                               - write pid to /var/run/idlewatcher.pid
#
#----------------------------------------------------------------------

use strict;
use warnings;
use Sys::Syslog;
use Getopt::Long;

#----------------------------------------------------------------------

my $VERSION     = "1.2";
my $PROGRAM     = "IdleWatcher";
my $RUN         = 1;
my $DAEMONIZE   = 1;
my $PIDFILE     = "/var/run/idlewatcher.pid";

#----------------------------------------------------------------------

sub help
{
        print STDERR <<EOT

$PROGRAM v$VERSION

usage: $PROGRAM [-h|--help] [--idletimeout <n>]
                [--nodaemon] --irqs <irq>,... --command <cmd>

        -h|--help               show this little help text
        --idletimeout           how much secs. no new irq to be idle
                                default: 900 sec. (15 min.)
        --nodaemon              don't daemonize
        --irqs                  list of irqs# to watch (ex: --irqs 2,10)
        --command               command to execute when idle
                                (ex: "shutdown -n now 'idle time reached'")

EOT
}

#----------------------------------------------------------------------

sub logger
{
        my $msg = join('', @_);

        if ( $DAEMONIZE )
        {
                syslog("info", $msg);
        }
        else
        {
                print STDERR "$msg\n";
        }
}

#----------------------------------------------------------------------

sub cleanup
{
        logger("cleanup...");
        unlink $PIDFILE;
        closelog();
}

#----------------------------------------------------------------------

sub myhandler
{
        my $sig = shift;

        $SIG{$sig} = 'IGNORE';
        logger("Caughting Signal: $sig");

        if ( $sig !~ /TERM/i )
        {
                $RUN=0;
        }
        else
        {
                cleanup();
                exit 1;
        }
}

#----------------------------------------------------------------------

MAIN:
{
        my ($line, $irq, $rate, %lastnirq, %nirq, $idle, $pid, $result);
        my $help = 0;
        my @irqs = ();
        my $idletimeout = 300;
        my $checkinterval = 1;
        my $command = '';
        my $enter = 1;


        # check for another running instance
        if ( -e $PIDFILE )
        {
                die "Another instance of $PROGRAM seems running. Check $PIDFILE!";
        }

        $SIG{'HUP'} = \&myhandler;
        $SIG{'INT'} = \&myhandler;
        $SIG{'QUIT'} = \&myhandler;
        $SIG{'TERM'} = \&myhandler;

        $result = GetOptions(
                "help|h|?"              => \$help,
                "irqs=s"                => \@irqs,
                "idletimeout:i"         => \$idletimeout,
#               "checkinterval:i"       => \$checkinterval,
                "command=s"             => \$command,
                "nodaemon"              => sub { $DAEMONIZE = 0 }
        );

        @irqs = split(/,/, join(',', @irqs));

        if ( !$result || $help || !$command || !@irqs )
        {
                help(); exit 1;
        }

        foreach my $irq ( @irqs )
        {
                $lastnirq{$irq} = 0;
        }

        $idle = 0;

        if ( $DAEMONIZE )
        {
                if ( $pid = fork() )    # parent
                {
                        exit 0;
                }
                elsif ( !$pid )         # child
                {
                        close(STDIN);
                        close(STDERR);
                        close(STDOUT);
                }
                else
                {
                        die("Can't fork(): $!");
                }
        }

        openlog($PROGRAM, 'cons,pid', 'user');
        logger("Starting $PROGRAM v${VERSION}");
        logger("watching irqs = " . join(" ", @irqs));
        logger("idletimeout = $idletimeout secs.");
#       logger("checkinterval = $checkinterval secs.");
        logger("command = $command");

        # write pid
        unless ( open(PID, ">$PIDFILE") )
        {
                logger("Can't write to $PIDFILE: $!");
                cleanup();
                exit 1;
        }
        else
        {
                print PID "$$\n";
                close(PID);
                logger("Wrote PID ($$) to $PIDFILE");
        }

        while ( $RUN )
        {
                if ( $enter )
                {
                        logger("Entering Idle Watch Loop...");
                        $enter = 0;
                }

                sleep(1);

                unless ( open PROC, "</proc/interrupts" )
                {
                        logger("Can't open /proc: $!");
                        cleanup();
                        exit 1;
                }

                while ( $line = <PROC> )
                {
                        chomp $line;
                        next if $. == 1;        # skip header

                        $line =~ /^\s*(\w+):\s*(\d+)/;
                        $irq = $1; $rate = $2;
                        $nirq{$irq} = $rate;

                        if ( grep(/^$irq$/, keys %lastnirq) )
                        {
                                # new events?
                                if ( $lastnirq{$irq} < $nirq{$irq} )
                                {
                                        #logger("new event for irq \#$irq ($nirq{$irq})");
                                        $lastnirq{$irq} = $nirq{$irq};
                                        $idle = 0;
                                        last;
                                }
                        }
                } #while ( $line = <PROC> )

                close PROC;

                if ( ! (++$idle % 60) )
                {
                        logger("No new irq events for $idle secs.");
                }

                # idle time reached?
                if ( $idle == $idletimeout )
                {
                        logger("Idle time ($idletimeout secs.) reached!");
                        logger("Executing Program: $command");
                        system($command) == 0
                                or logger("Can't exec \"$command\": $? $!");
                        $idle = 0;
                        $enter = 1;
                }

        } # while ( $RUN )

        logger("Exiting...");
        cleanup();
        exit 0;
}

# end of file ;)

# config file of idlewatcher

battery='--irqs 1,12    --idletimeout  600 --command /usr/sbin/hibernate-ram'
default='--irqs 1,12    --idletimeout 7200 --command /usr/sbin/hibernate-ram'

#!/sbin/runscript

depend() {
        need localmount
}

checkconfig() {
        if [ ! -e /proc/interrupts ]; then
                eerror "No /proc filesystem found"
                return 1
        fi

        if [ ! -e /etc/conf.d/idlewatcher ]; then
                eerror "No config file found"
                return 1
        fi
}

start() {
        checkconfig || return 1

        ebegin "Starting idlewatcher"
        runlevel=$(< /var/lib/init.d/softlevel)
        if [ "$runlevel" == "battery" ]
        then
                opts="$battery"
        else
                opts="$default"
        fi
        /usr/local/sbin/idlewatcher $opts
        eend ${?}
}

stop() {
        ebegin "Stopping idlewatcher"
        kill `cat /var/run/idlewatcher.pid` >/dev/null 2>/dev/null
        eend ${?}
}

# rc-update -a idlewatcher battery

# /etc/conf.d/local.start

# remove suspend to ram state file (eg. not removed because of a crash)
rm -f /var/state/suspend2ram

# This is a good place to load any misc programs
# on startup ( use 1>&2 to hide output)

# frequency voltage
echo "1867000 1100"     > /sys/devices/system/cpu/cpu0/cpufreq/scaling_voltages
echo "1600000 1050"     > /sys/devices/system/cpu/cpu0/cpufreq/scaling_voltages
echo "1333000 1000"     > /sys/devices/system/cpu/cpu0/cpufreq/scaling_voltages
echo "1067000 950"      > /sys/devices/system/cpu/cpu0/cpufreq/scaling_voltages
echo "800000 700"       > /sys/devices/system/cpu/cpu0/cpufreq/scaling_voltages

for i in /proc/acpi/thermal_zone/TZ?/polling_frequency
do
        echo 3 > $i
done

echo "85:85:65:60:55:50:45 " > /proc/acpi/thermal_zone/TZ1/trip_points