You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
607 lines
24 KiB
607 lines
24 KiB
#!/usr/bin/python
|
|
# -*- coding: UTF-8 -*-
|
|
###########################################################################
|
|
# Copyright (C) 2006 by Sebastian Kügler
|
|
# <sebas@kde.org>
|
|
#
|
|
# Copyright: See COPYING file that comes with this distribution
|
|
#
|
|
###########################################################################
|
|
# An API for changing the powerstate of a notebook
|
|
|
|
import dbus
|
|
import dbus.glib
|
|
import os, time
|
|
from dcopext import DCOPClient, DCOPApp # Used for tdescreensaver
|
|
import xf86misc
|
|
|
|
DEBUG = False
|
|
|
|
def debug(msg):
|
|
""" Print debug message to terminal. """
|
|
if DEBUG:
|
|
print msg
|
|
|
|
# Default values for actions when battery runs out.
|
|
BATTERY_CRITICAL_MINUTES=5
|
|
|
|
# Only do an emergency suspend if charge level percentage is below ...
|
|
CHARGE_LEVEL_THRESHOLD = 10
|
|
|
|
isroot = os.environ["USER"] == "root"
|
|
|
|
# Send suspend / hibernate commands to HAL or use Sx_COMMANDS
|
|
SUSPEND_USE_HAL = True
|
|
|
|
# Show the cpu frequency widgets in the tooltip?
|
|
SHOW_CPUFREQ = True
|
|
|
|
|
|
# Command to initiate suspend-to-disk when not using HAL
|
|
S4_COMMAND = "/usr/local/bin/hibernate"
|
|
# Command to initiate suspend-to-ram when not using HAL
|
|
S3_COMMAND = "/usr/local/bin/s2ram"
|
|
|
|
# Override isLaptop method
|
|
#IS_LAPTOP = True
|
|
|
|
def _readValue(filename, line=0):
|
|
""" Reads a single value from the first line of a file. """
|
|
fhandle = open(filename)
|
|
value = fhandle.readlines()[line][:-1]
|
|
fhandle.close()
|
|
return value
|
|
|
|
class PowerManage:
|
|
""" Class providing low-level power managerment functionality. """
|
|
|
|
def __init__(self):
|
|
# (En|Dis)able using hdparm to set disk timeout
|
|
self.USE_HDPARM = True
|
|
# (En|Dis)able using laptop_mode to make the disk spin up less often
|
|
self.USE_LAPTOP_MODE = True
|
|
# (En|Dis)able using cpufreq to control cpu frequency scaling
|
|
self.USE_CPUFREQ = True
|
|
# (En|Dis)able using wireless adapter powermanagement (causes lag in network connection)
|
|
self.USE_WI_PM = True
|
|
# (En|Dis)able using display powermanagement
|
|
self.USE_DPMS = True
|
|
# (En|Dis)able using display brightness switching
|
|
self.USE_DISPLAY = True
|
|
# (En|Dis)able screensaver blankonly
|
|
self.SCREENSAVER_BLANKONLY = True
|
|
|
|
|
|
try:
|
|
xg = xf86misc.XF86Server()
|
|
self.xscreen = xg.getDefaultScreen()
|
|
except xf86misc.XF86Error:
|
|
print "Problem connecting to X server for idletime detection."
|
|
# Currently only used in the test method
|
|
self.display_dark = 0.5
|
|
self.display_light = 1
|
|
|
|
# Some status initialisations
|
|
self.lowBatteryState = False
|
|
self.warningBatteryState = False
|
|
self.criticalBatteryState = False
|
|
|
|
self.criticalBatteryState = False
|
|
self.lidClosedState = False
|
|
|
|
# What does HAL support on this machine
|
|
self.hasBrightness = False
|
|
self.hasAC = False
|
|
self.hasLid = False
|
|
self.hasBattery = False
|
|
self.hasCpuFreqGovernors = False
|
|
|
|
# Used to track if the previous check reported a battery to determine
|
|
# if we want to fire a notice "battery removed|plugged in"
|
|
self.wasOnBattery = False
|
|
self._initHAL()
|
|
self._initBrightness()
|
|
self._initBattery()
|
|
self._initAc()
|
|
self._initLid()
|
|
self._checkSuspend()
|
|
self._checkCpuCapabilities()
|
|
self._findDisks()
|
|
|
|
def checkHAL(self):
|
|
""" Handle HAL and DBus restarts """
|
|
try:
|
|
self.hal_manager.FindDeviceByCapability("")
|
|
except dbus.DBusException, e:
|
|
if str(e) == 'org.freedesktop.DBus.Error.Disconnected: Connection is closed' \
|
|
or str(e) == 'org.freedesktop.DBus.Error.Disconnected: Connection was disconnected before a reply was received':
|
|
# DBus doesn't support on-the-fly restart
|
|
print "connection with DBus lost, please restart the display manager"
|
|
return
|
|
|
|
if os.system("ps aux|grep [h]ald-runner") == 0:
|
|
print "connection with HAL lost, trying to reconnect"
|
|
self._initHAL()
|
|
self._initBrightness()
|
|
self._initBattery()
|
|
self._initAc()
|
|
self._initLid()
|
|
self._checkSuspend()
|
|
self._checkCpuCapabilities()
|
|
else:
|
|
print "HAL is not running"
|
|
|
|
def isLaptop(self):
|
|
""" Detect if system is laptop. """
|
|
try:
|
|
return IS_LAPTOP
|
|
except NameError:
|
|
pass
|
|
self.computerObject = self.bus.get_object("org.freedesktop.Hal",
|
|
u'/org/freedesktop/Hal/devices/computer')
|
|
properties = self.computerObject.GetAllProperties(dbus_interface="org.freedesktop.Hal.Device")
|
|
# formfactor sometimes (ppc) also reports "unknown" for laptops
|
|
# workaround: consider laptop anything with primary battery (see LP #64053)
|
|
return properties["system.formfactor"] == "laptop" or self.hasBattery
|
|
|
|
def _findDisks(self):
|
|
""" Scan /sys/block for non-removable and non-ramdisks, used for hdparm actions,
|
|
currently not implemented in the powermanager frontend. """
|
|
self.disks = []
|
|
blk_path = "/sys/block/"
|
|
for d in os.listdir(blk_path):
|
|
# No RAM disks, no DM-RAID
|
|
if d.startswith("ram") or d.startswith("dm"):
|
|
continue
|
|
fhandle = open(blk_path+d+"/removable")
|
|
if fhandle.readlines()[0][:-1] == "0":
|
|
self.disks.append(d)
|
|
debug("Detected disks: "+" ".join(self.disks))
|
|
|
|
def onBattery(self):
|
|
""" Find out if we're on AC or on battery using HAL. """
|
|
if not self.hasAC:
|
|
print "No AC adapter found - assume that we are on batteries."
|
|
return False
|
|
properties = self.acObject.GetAllProperties(dbus_interface="org.freedesktop.Hal.Device")
|
|
if properties.has_key("ac_adapter.present"):
|
|
return not properties['ac_adapter.present']
|
|
else:
|
|
print "Error: ac_adapter has no property \"present\""
|
|
return False
|
|
|
|
def _initBattery(self):
|
|
""" Looks for a battery in HAL. """
|
|
batteryDevices = self.hal_manager.FindDeviceByCapability("battery")
|
|
self.batteries = {}
|
|
self.batteryIsPresent = {}
|
|
|
|
numBatt = 0
|
|
for batt in batteryDevices:
|
|
battObj = self.bus.get_object("org.freedesktop.Hal", batt)
|
|
properties = battObj.GetAllProperties(dbus_interface="org.freedesktop.Hal.Device")
|
|
if properties['battery.type'] != "primary":
|
|
continue
|
|
self.batteries[numBatt] = battObj
|
|
self.batteryIsPresent[numBatt] = properties['battery.present']
|
|
numBatt += 1
|
|
|
|
if numBatt > 0:
|
|
self.hasBattery = True
|
|
else:
|
|
self.hasBattery = False
|
|
print "No battery found."
|
|
|
|
def getBatteryState(self,batt):
|
|
""" Read battery status from HAL and return
|
|
(battery state, charge percentage, remaining seconds).
|
|
"""
|
|
try:
|
|
properties = self.batteries[batt].GetAllProperties(dbus_interface="org.freedesktop.Hal.Device")
|
|
except dbus.DBusException:
|
|
print "problem getting battery state from dbus."
|
|
return "not present", 0, 0, 0, 0, 0
|
|
|
|
if not properties['battery.present']:
|
|
return "not present", 0, 0, 0, 0, 0
|
|
else:
|
|
current = full = level = remain = rate = 0
|
|
if properties.has_key("battery.charge_level.current"):
|
|
current = properties["battery.charge_level.current"]
|
|
if properties.has_key("battery.charge_level.last_full"):
|
|
full = properties["battery.charge_level.last_full"]
|
|
|
|
if properties["battery.rechargeable.is_charging"]:
|
|
state = "charging"
|
|
elif properties["battery.rechargeable.is_discharging"]:
|
|
if self.onBattery():
|
|
state = "discharging"
|
|
else:
|
|
state = "charged"
|
|
elif not properties["battery.rechargeable.is_discharging"] \
|
|
and not properties["battery.rechargeable.is_charging"]:
|
|
if current == 0:
|
|
state = "empty"
|
|
else:
|
|
state = "charged"
|
|
else:
|
|
print "Unknown battery state ..."
|
|
|
|
# Sometimes, HAL doesn't report the percentage, but we can compute that ourselves anyway
|
|
if properties.has_key("battery.charge_level.percentage"):
|
|
level = properties["battery.charge_level.percentage"]
|
|
elif current > 0 and full > 0:
|
|
level = current / full
|
|
|
|
if state in ("charging","discharging"):
|
|
if properties.has_key("battery.remaining_time"):
|
|
remain = properties["battery.remaining_time"]
|
|
if properties.has_key("battery.charge_level.rate"):
|
|
rate = properties["battery.charge_level.rate"]
|
|
|
|
return state, level, remain, rate, current, full
|
|
|
|
def showInfo(self):
|
|
""" Outputs some random information to show that it does not work yet. """
|
|
print "OnBattery:", self.onBattery()
|
|
print "CPUs:", len(self.cpus)
|
|
|
|
def _initHAL(self):
|
|
""" Initialise HAL client to be used later. """
|
|
self.bus = dbus.SystemBus()
|
|
hal_manager_obj = self.bus.get_object("org.freedesktop.Hal", "/org/freedesktop/Hal/Manager")
|
|
self.hal_manager = dbus.Interface(hal_manager_obj, "org.freedesktop.Hal.Manager")
|
|
|
|
def _initLid(self):
|
|
""" Find out if there's a Lid device. """
|
|
lidDevice = self.hal_manager.FindDeviceStringMatch("button.type", "lid")
|
|
if len(lidDevice) >= 1:
|
|
self.hasLid = True
|
|
self.lidObject = self.bus.get_object("org.freedesktop.Hal" ,lidDevice[0])
|
|
|
|
def _initAc(self):
|
|
""" Search HAL for detecting if power is plugged in. """
|
|
acDevice = self.hal_manager.FindDeviceByCapability("ac_adapter")
|
|
if len(acDevice) >= 1:
|
|
self.hasAC = True
|
|
self.acObject = self.bus.get_object("org.freedesktop.Hal" ,acDevice[0])
|
|
|
|
def _checkSuspend(self):
|
|
""" Ask HAL whether we can suspend / hibernate. """
|
|
if SUSPEND_USE_HAL:
|
|
self.computerObject = self.bus.get_object("org.freedesktop.Hal",
|
|
u'/org/freedesktop/Hal/devices/computer')
|
|
properties = self.computerObject.GetAllProperties(
|
|
dbus_interface="org.freedesktop.Hal.Device")
|
|
self.canSuspend = properties["power_management.can_suspend"]
|
|
self.canHibernate = properties["power_management.can_hibernate"]
|
|
else:
|
|
self.canSuspend = self.canHibernate = True
|
|
|
|
def _initBrightness(self):
|
|
""" Search HAL for a screen with brightness controls."""
|
|
|
|
brightnessDevice = self.hal_manager.FindDeviceByCapability("laptop_panel")
|
|
|
|
if len(brightnessDevice) >= 1:
|
|
self.hasBrightness = True
|
|
self.brightnessObject = self.bus.get_object("org.freedesktop.Hal", brightnessDevice[0])
|
|
self.brightness_properties = self.brightnessObject.GetAllProperties(
|
|
dbus_interface="org.freedesktop.Hal.Device")
|
|
try:
|
|
self.brightness_levels = self.brightness_properties[u'laptop_panel.num_levels']
|
|
except KeyError,e:
|
|
self.hasBrightness = False
|
|
return 0 # Really don't know what to do here, but don't crash in any case.
|
|
try:
|
|
self.old_b = self.brightness_levels[-1] # Setting cached brightness value to brightest
|
|
except TypeError,e:
|
|
return 0 # Really don't know what to do here, but don't crash in any case.
|
|
|
|
def getBrightness(self):
|
|
""" Read brightness from HAL. """
|
|
if not self.hasBrightness:
|
|
debug("Brightness setting not supported.")
|
|
return
|
|
try:
|
|
b = self.brightnessObject.GetBrightness(
|
|
dbus_interface="org.freedesktop.Hal.Device.LaptopPanel")
|
|
except dbus.DBusException, e:
|
|
# Sometimes, right after resume, the HAL call
|
|
# fails, in that case, we return the last value
|
|
# and hope that it goes well next time.
|
|
print "Warning: in getBrightness(): ", e
|
|
# try and return the old brightness setting, but don't die in any case:
|
|
try:
|
|
return self.old_b
|
|
except AttributeError, errmsg:
|
|
return
|
|
self.old_b = b
|
|
return b
|
|
|
|
def adjustBrightness(self, level):
|
|
""" Adjust the brightness via HAL. """
|
|
if not self.hasBrightness:
|
|
debug("Brightness setting not supported.")
|
|
return
|
|
try:
|
|
self.brightnessObject.SetBrightness(level,
|
|
dbus_interface="org.freedesktop.Hal.Device.LaptopPanel")
|
|
except dbus.DBusException, e:
|
|
print e
|
|
|
|
def _checkCpuCapabilities(self):
|
|
""" Find out the number of CPUs / cores, check which governors are avaible."""
|
|
cpufreq_dir = "/sys/devices/system/cpu"
|
|
self.cpus = []
|
|
for cpu in os.listdir(cpufreq_dir):
|
|
if cpu.startswith('cpu') and cpu != 'cpuidle':
|
|
self.cpus.append(cpu)
|
|
self.cpus.sort()
|
|
|
|
# Map our policies to cpufreq governors.
|
|
self.cpu_policy = {}
|
|
self.cpu_policy['dynamic/ac'] = []
|
|
self.cpu_policy['dynamic/battery'] = []
|
|
self.cpu_policy['powersave'] = []
|
|
self.cpu_policy['performance'] = []
|
|
|
|
try:
|
|
comp_obj = self.bus.get_object('org.freedesktop.Hal', '/org/freedesktop/Hal/devices/computer')
|
|
self.cpufreq = dbus.Interface(comp_obj, 'org.freedesktop.Hal.Device.CPUFreq')
|
|
self.governor_available = self.cpufreq.GetCPUFreqAvailableGovernors()
|
|
except dbus.DBusException:
|
|
return
|
|
self.hasCpuFreqGovernors = True
|
|
|
|
if 'ondemand' in self.governor_available:
|
|
self.cpu_policy['dynamic/ac'].append('ondemand')
|
|
self.cpu_policy['dynamic/battery'].append('ondemand')
|
|
if 'conservative' in self.governor_available:
|
|
self.cpu_policy['dynamic/ac'].append('conservative')
|
|
self.cpu_policy['dynamic/battery'].insert(0,'conservative')
|
|
if 'userspace' in self.governor_available:
|
|
self.cpu_policy['dynamic/ac'].append('userspace')
|
|
self.cpu_policy['dynamic/battery'].append('userspace')
|
|
if 'powersave' in self.governor_available:
|
|
self.cpu_policy['powersave'].append('powersave')
|
|
if 'performance' in self.governor_available:
|
|
self.cpu_policy['performance'].append('performance')
|
|
|
|
def getSupportedCpuPolicies(self):
|
|
""" Report a list of supported CPU policies """
|
|
policies = []
|
|
if len(self.cpu_policy['dynamic/ac']) > 0:
|
|
policies.append('dynamic')
|
|
if len(self.cpu_policy['powersave']) > 0:
|
|
policies.append('powersave')
|
|
if len(self.cpu_policy['performance']) > 0:
|
|
policies.append('performance')
|
|
return policies
|
|
|
|
def getCpuPolicy(self):
|
|
""" Translate current CPU frequency governor into policy """
|
|
if not self.USE_CPUFREQ or not self.hasCpuFreqGovernors:
|
|
return ""
|
|
gov = self.cpufreq.GetCPUFreqGovernor()
|
|
for policy in self.cpu_policy.keys():
|
|
if gov in self.cpu_policy[policy]:
|
|
return policy.split('/')[0] # strip ac or battery off
|
|
return gov ## return as-is - no conversion
|
|
|
|
def setCpuPolicy(self,policy):
|
|
""" Using cpufreq governors. Mode is powersave, dynamic or performance. We're assuming that
|
|
the available governors are the same for all CPUs. This method changes the cpufreq
|
|
governor on all CPUs to a certain policy."""
|
|
if not self.USE_CPUFREQ or not self.hasCpuFreqGovernors:
|
|
return False
|
|
|
|
if policy == "dynamic":
|
|
if self.onBattery():
|
|
policy = "dynamic/battery"
|
|
else:
|
|
policy = "dynamic/ac"
|
|
|
|
for gov in self.cpu_policy[policy]:
|
|
try:
|
|
self.cpufreq.SetCPUFreqGovernor(gov)
|
|
return True
|
|
except dbus.DBusException:
|
|
pass
|
|
return False # no of governor worked
|
|
|
|
def cpuIsOnline(self,cpu):
|
|
""" Check if cpu is online. CPU0 is always online, CPU1 might be unplugged. Since
|
|
/sys/devices/system/cpu/$cpu/cpufreq is not readable for normal users, we just
|
|
check for the cpufreq subdir (which is where it's really needed anyway).
|
|
"""
|
|
if cpu == "cpu0": return True
|
|
else: return os.path.isdir("/sys/devices/system/cpu/"+cpu+"/cpufreq")
|
|
|
|
def getCpuState(self,cpu):
|
|
""" Reads the status of a CPU from /sys. """
|
|
state = {}
|
|
state['online'] = self.cpuIsOnline(cpu)
|
|
if not state['online']:
|
|
debug("getCpuState: "+cpu+" is offline")
|
|
return state
|
|
try:
|
|
state['cpu'] = cpu
|
|
state['cur'] = int(_readValue("/sys/devices/system/cpu/"+cpu+"/cpufreq/scaling_cur_freq"))/1000
|
|
state['governor'] = _readValue("/sys/devices/system/cpu/"+cpu+"/cpufreq/scaling_governor")
|
|
state['driver'] = _readValue("/sys/devices/system/cpu/"+cpu+"/cpufreq/scaling_driver")
|
|
state['steps'] = []
|
|
freqs = _readValue("/sys/devices/system/cpu/"+cpu+"/cpufreq/scaling_available_frequencies")
|
|
except IOError:
|
|
# CPUFREQ has gone away, let's disable it.
|
|
state['online'] = False
|
|
return state
|
|
for v in freqs.split():
|
|
state['steps'].append(int(v)/1000)
|
|
state['max'] = max(state['steps'])
|
|
state['min'] = min(state['steps'])
|
|
debug(state)
|
|
return state
|
|
|
|
def getLidClosedState(self):
|
|
""" Returns True if the lid is currently closed, or False if it isn't. """
|
|
try:
|
|
properties = self.lidObject.GetAllProperties(dbus_interface="org.freedesktop.Hal.Device")
|
|
return properties["button.state.value"]
|
|
except (KeyError, dbus.DBusException):
|
|
return False
|
|
|
|
def setPowerSave(self, state):
|
|
# No SetPowerSave in Ubuntu's HAL
|
|
try:
|
|
self.computerObject.SetPowerSave(state,
|
|
dbus_interface="org.freedesktop.Hal.Device.SystemPowerManagement")
|
|
except dbus.DBusException, e:
|
|
print "Warning: While setting SystemPowerManagement to ", state, ": ",
|
|
print e
|
|
|
|
def blankScreen(self):
|
|
""" Call dpms to switch off the screen immediately. """
|
|
os.system('xset dpms force standby')
|
|
|
|
def setScreensaverBlankOnly(self,blankonly):
|
|
""" Switches a screensaver to blankonly, so cpu hungry screensavers will not drain the poor
|
|
battery."""
|
|
# create a new DCOP-Client:
|
|
client = DCOPClient()
|
|
# connect the client to the local DCOP-server:
|
|
client.attach()
|
|
# create a DCOP-Application-Object to talk to amarok:
|
|
kdesktop = DCOPApp('kdesktop', client)
|
|
# call a DCOP-function:
|
|
ok, foo = kdesktop.KScreensaverIface.setBlankOnly(blankonly)
|
|
if not ok:
|
|
debug("Failed to set kdesktop screensaver to blankonly.")
|
|
return False
|
|
return True
|
|
|
|
def getIdleSeconds(self):
|
|
""" Get idle seconds from X server. """
|
|
return self.xscreen.getIdleSeconds()
|
|
|
|
def resetIdleSeconds(self):
|
|
""" Reset idle seconds. """
|
|
return self.xscreen.resetIdleSeconds()
|
|
|
|
def test(self):
|
|
""" Try all kinds of stuff and see what breaks."""
|
|
print "Trying to adjust brightness ..."
|
|
bright = self.getBrightness()
|
|
self.adjustBrightness(2)
|
|
time.sleep(1)
|
|
self.adjustBrightness(bright)
|
|
print " ... OK."
|
|
|
|
if self.USE_CPUFREQ:
|
|
print "Reading speeds from cpufreq..."
|
|
for cpu in self.cpus:
|
|
print self.getCpuState(cpu)
|
|
print "Report supported cpufreq policies..."
|
|
for policy in self.cpu_policy.keys():
|
|
print "Policy:", policy, "=", self.cpu_policy[policy]
|
|
|
|
print "Trying all cpufreq policies ..."
|
|
orig_pol = self.getCpuPolicy()
|
|
for pol in self.cpu_policy.keys():
|
|
print ". ", pol
|
|
self.setCpuPolicy(pol)
|
|
self.setCpuPolicy(orig_pol)
|
|
print "... OK."
|
|
else:
|
|
print "Skipping CPUFREQ: USE_CPUFREQ = False"
|
|
|
|
if self.SCREENSAVER_BLANKONLY:
|
|
if self.setScreensaverBlankOnly(True):
|
|
debug("Manipulating screensaver seems to work well.")
|
|
else:
|
|
debug("Manipulating screensaver seems broken.")
|
|
|
|
if isroot:
|
|
print "Trying to use Disk powermanagement and laptop_mode"
|
|
self.setDiskPM(True)
|
|
time.sleep(1)
|
|
self.setDiskPM(False)
|
|
print "...OK"
|
|
else:
|
|
print "Skipping DiskPM, not root."
|
|
|
|
if self.hasLid:
|
|
if self.getLidClosedState():
|
|
print "Lid is closed."
|
|
else:
|
|
print "Lid is currently open."
|
|
|
|
def setDiskPM(self,on=True):
|
|
""" Switches on laptop_mode and sets disks to advanced powermanagement."""
|
|
if self.USE_LAPTOP_MODE:
|
|
# Check if laptop_mode exists:
|
|
laptop_mode = "/proc/sys/vm/laptop_mode"
|
|
if not os.path.isfile(laptop_mode):
|
|
self.USE_LAPTOP_MODE = False
|
|
debug("Laptop mode not supported, no "+laptop_mode)
|
|
else:
|
|
fhandle = open(laptop_mode,"w")
|
|
if on: val = 1
|
|
else: val = 0
|
|
fhandle.write(str(val))
|
|
fhandle.close()
|
|
|
|
if self.USE_HDPARM:
|
|
# Set disks to advanced PM
|
|
for disk in self.disks:
|
|
if on:
|
|
# Switch on advanced powermanagement
|
|
cmd = "hdparm -B1 /dev/"+disk+" > /dev/null"
|
|
else:
|
|
# Switch off advanced powermanagement
|
|
cmd = "hdparm -B255 /dev/"+disk+" > /dev/null"
|
|
if os.system(cmd) != 0:
|
|
self.USE_HDPARM = False
|
|
print "Switching advanced powermanagement failed, not using hdparm anymore"
|
|
|
|
def suspend(self):
|
|
""" Run a suspend command, either via HAL or script. """
|
|
if SUSPEND_USE_HAL:
|
|
try:
|
|
self.computerObject.Suspend(0, dbus_interface="org.freedesktop.Hal.Device.SystemPowerManagement")
|
|
except dbus.DBusException:
|
|
pass #we get a DBusException: No reply within specified time
|
|
else:
|
|
self._sleepMode(S3_COMMAND)
|
|
|
|
def hibernate(self):
|
|
""" Implements suspend to disk (S4). """
|
|
if SUSPEND_USE_HAL:
|
|
try:
|
|
self.computerObject.Hibernate(dbus_interface="org.freedesktop.Hal.Device.SystemPowerManagement")
|
|
except dbus.DBusException:
|
|
pass #we get a DBusException: No reply within specified time
|
|
else:
|
|
self._sleepMode(S4_COMMAND)
|
|
|
|
def _sleepMode(self, command):
|
|
""" Send the system into S3 or S4 not using HAL. """
|
|
debug("Initiating a sleep cycle")
|
|
if os.system(command) != 0:
|
|
print "sleepmode failed. ("+command+")"
|
|
return False
|
|
debug("Everything is dandy")
|
|
return True
|
|
|
|
def shutdown(self):
|
|
""" Shutdown the system via HAL. """
|
|
self.computerObject.Shutdown(dbus_interface="org.freedesktop.Hal.Device.SystemPowerManagement")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
""" Run some tests, used for debugging."""
|
|
pman = PowerManage()
|
|
pman.showInfo()
|
|
pman.test()
|
|
|