/usr/lib/python2.7/dist-packages/framework/subsystems/odeviced/powercontrol.py is in fso-frameworkd 0.10.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | #!/usr/bin/env python
"""
Open Device Daemon - Abstract Power and Resource Management Classes
(C) 2008 Michael 'Mickey' Lauer <mlauer@vanille-media.de>
(C) 2008 Openmoko, Inc.
GPLv2 or later
Package: odeviced
Module: powercontrol
"""
__version__ = "0.0.0"
MODULE_NAME = "odeviced.powercontrol"
from helpers import DBUS_INTERFACE_PREFIX, DBUS_PATH_PREFIX, readFromFile, writeToFile
from framework import resource
import dbus.service
import gobject
import logging
logger = logging.getLogger( MODULE_NAME )
#----------------------------------------------------------------------------#
class GenericPowerControl( dbus.service.Object ):
#----------------------------------------------------------------------------#
"""
An abstract Dbus Object implementing org.freesmartphone.Device.PowerControl.
"""
DBUS_INTERFACE = DBUS_INTERFACE_PREFIX + ".PowerControl"
def __init__( self, bus, name, node ):
self.interface = self.DBUS_INTERFACE
self.path = DBUS_PATH_PREFIX + "/PowerControl/%s" % name
dbus.service.Object.__init__( self, bus, self.path )
logger.info( "%s %s initialized. Serving %s at %s" % ( self.__class__.__name__, __version__, self.interface, self.path ) )
self.node = node
self.name = name
self.powernode = None
self.resetnode = None
self.onValue = "1"
self.offValue = "0"
#
# default implementations, feel free to override in descendants
#
def getPower( self ):
return int( readFromFile( self.powernode ) )
def setPower( self, power ):
value = self.onValue if power else self.offValue
writeToFile( self.powernode, value )
def reset( self ):
writeToFile( self.resetnode, "1" )
def sendPowerSignal( self, expectedPower ):
if self.getPower() == expectedPower:
self.Power( self.name, expectedPower )
else:
logger.warning( "%s expected a power change for %s to %s which didn't happen" % ( __name__, self.name, expectedPower ) )
return False # mainloop: don't call me again
#
# dbus methods
#
@dbus.service.method( DBUS_INTERFACE, "", "s" )
def GetName( self ):
return self.name
@dbus.service.method( DBUS_INTERFACE, "", "b" )
def GetPower( self ):
return self.getPower()
@dbus.service.method( DBUS_INTERFACE, "b", "" )
def SetPower( self, power ):
if power != self.getPower():
self.setPower( power )
gobject.timeout_add_seconds( 3, lambda self=self: self.sendPowerSignal( power ) )
else:
# FIXME should we issue an error here or just silently ignore?
pass
@dbus.service.method( DBUS_INTERFACE, "", "" )
def Reset( self ):
self.reset()
#
# dbus signals
#
@dbus.service.signal( DBUS_INTERFACE, "sb" )
def Power( self, device, power ):
logger.info( "%s power for %s changed to %s" % ( __name__, self.name, power ) )
#----------------------------------------------------------------------------#
class ResourceAwarePowerControl( GenericPowerControl, resource.Resource ):
#----------------------------------------------------------------------------#
"""
Resource object that maps enabling/disabling/suspending/resuming to
the simple power on/off operations provided by GenericPowerControl.
"""
def __init__( self, bus, name, node ):
GenericPowerControl.__init__( self, bus, name, node )
resource.Resource.__init__( self, bus, name )
def _enable( self, on_ok, on_error ):
self.SetPower( True )
on_ok()
def _disable( self, on_ok, on_error ):
self.SetPower( False )
on_ok()
def _suspend( self, on_ok, on_error ):
self._disable( on_ok, on_error )
def _resume( self, on_ok, on_error ):
self._enable( on_ok, on_error )
#----------------------------------------------------------------------------#
if __name__ == "__main__":
#----------------------------------------------------------------------------#
pass
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