1 files changed, 143 insertions, 0 deletions
diff --git a/src/hardware/hardwaremanager.py b/src/hardware/hardwaremanager.py
new file mode 100644
index 0000000..4eeac03
--- /dev/null
+++ b/src/hardware/hardwaremanager.py
@@ -0,0 +1,143 @@
+# 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.')