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# Copyright (C) 2006-2007 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
import dbus
import gst
import gst.interfaces
from hardware.nmclient import NMClient
from sugar.profile import get_profile
from sugar import env
_HARDWARE_MANAGER_INTERFACE = 'org.laptop.HardwareManager'
_HARDWARE_MANAGER_SERVICE = 'org.laptop.HardwareManager'
_HARDWARE_MANAGER_OBJECT_PATH = '/org/laptop/HardwareManager'
COLOR_MODE = 0
B_AND_W_MODE = 1
class HardwareManager(object):
def __init__(self):
try:
bus = dbus.SystemBus()
proxy = bus.get_object(_HARDWARE_MANAGER_SERVICE,
_HARDWARE_MANAGER_OBJECT_PATH)
self._service = dbus.Interface(proxy, _HARDWARE_MANAGER_INTERFACE)
except dbus.DBusException, e:
self._service = None
logging.info('Hardware manager service not found.')
self._mixer = gst.element_factory_make('alsamixer')
self._mixer.set_state(gst.STATE_PAUSED)
self._master = None
for track in self._mixer.list_tracks():
if track.flags & gst.interfaces.MIXER_TRACK_MASTER:
self._master = track
def get_volume(self):
if not self._mixer or not self._master:
logging.error('Cannot get the volume')
return self._convert_volume(0)
max_volume = self._master.max_volume
min_volume = self._master.min_volume
volume = self._mixer.get_volume(self._master)[0]
return volume * 100.0 / (max_volume - min_volume) + min_volume
def set_volume(self, volume):
if not self._mixer or not self._master:
logging.error('Cannot set the volume')
if volume < 0 or volume > 100:
logging.error('Trying to set an invalid volume value.')
return
max_volume = self._master.max_volume
min_volume = self._master.min_volume
volume = volume * (max_volume - min_volume) / 100.0 + min_volume
volume_list = [ volume ] * self._master.num_channels
self._mixer.set_volume(self._master, tuple(volume_list))
def set_mute(self, mute):
if not self._mixer or not self._master:
logging.error('Cannot mute the audio channel')
self._mixer.set_mute(self._master, mute)
def startup(self):
if env.is_emulator() is False:
profile = get_profile()
self.set_volume(profile.sound_volume)
def shutdown(self):
if env.is_emulator() is False:
profile = get_profile()
profile.sound_volume = self.get_volume()
profile.save()
def set_dcon_freeze(self, frozen):
if not self._service:
return
self._service.set_dcon_freeze(frozen)
def set_display_mode(self, mode):
if not self._service:
return
self._service.set_display_mode(mode)
def set_display_brightness(self, level):
if not self._service:
logging.error('Cannot set display brightness')
return
self._service.set_display_brightness(level)
def get_display_brightness(self):
if not self._service:
logging.error('Cannot get display brightness')
return
return self._service.get_display_brightness()
def toggle_keyboard_brightness(self):
if not self._service:
return
if self._service.get_keyboard_brightness():
self._service.set_keyboard_brightness(False)
else:
self._service.set_keyboard_brightness(True)
def get_manager():
return _manager
def get_network_manager():
return _network_manager
_manager = HardwareManager()
try:
_network_manager = NMClient()
except dbus.DBusException, e:
_network_manager = None
logging.info('Network manager service not found.')
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