/usr/lib/python2.7/dist-packages/framework/subsystems/ophoned/headset.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.
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"""
Open Phone Daemon - BlueZ headset interface
(C) 2009 Jan 'Shoragan' Lübbe <jluebbe@lasnet.de>
(C) 2009 Openmoko, Inc.
GPLv2 or later
Package: ophoned
Module: headset
FIXME: This is still device specific...
"""
__version__ = "0.9.0.0"
MODULE_NAME = "ophoned.headset"
import dbus, alsaaudio, gobject, subprocess
import logging
logger = logging.getLogger( MODULE_NAME )
class HeadsetError( dbus.DBusException ):
_dbus_error_name = "org.freesmartphone.Phone.HeadsetError"
class HeadsetManager( object ):
def __init__( self, bus, onAnswerRequested = None, onConnectionStatus = None ):
self.bus = bus
self._onAnswerRequested = onAnswerRequested
self._matchAnswerRequested = None
self._onConnectionStatus = onConnectionStatus
self._matchDisconnected = None
self.address = None
self.pcm_device = "hw:0,1"
self.pcm_play = None
self.pcm_cap = None
self.connected = False
self.playing = False
self._kickPCM()
usage = self.bus.get_object( 'org.freesmartphone.ousaged', '/org/freesmartphone/Usage', follow_name_owner_changes=True )
self.usageiface = dbus.Interface( usage, 'org.freesmartphone.Usage' )
logger.info( "usage ok: %s" % self.usageiface )
def _kickPCM( self ):
try:
hpcm_play = alsaaudio.PCM( alsaaudio.PCM_PLAYBACK, alsaaudio.PCM_NONBLOCK, "hw:0,0" )
hpcm_cap = alsaaudio.PCM( alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NONBLOCK, "hw:0,0" )
del hpcm_play
del hpcm_cap
except alsaaudio.ALSAAudioError:
pass
def _startPCM( self ):
self._stopPCM()
self.pcm_play = alsaaudio.PCM( alsaaudio.PCM_PLAYBACK, alsaaudio.PCM_NONBLOCK, self.pcm_device )
self.pcm_play.setchannels(1)
self.pcm_play.setrate(8000)
self.pcm_play.setformat(alsaaudio.PCM_FORMAT_S16_LE)
self.pcm_play.setperiodsize(500000)
self.pcm_cap = alsaaudio.PCM( alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NONBLOCK, self.pcm_device )
self.pcm_cap.setchannels(1)
self.pcm_cap.setrate(8000)
self.pcm_cap.setformat(alsaaudio.PCM_FORMAT_S16_LE)
self.pcm_cap.setperiodsize(500000)
def _stopPCM( self ):
if not self.pcm_play is None:
self.pcm_play.close()
self.pcm_play = None
if not self.pcm_cap is None:
self.pcm_cap.close()
self.pcm_cap = None
def _connectBT( self ):
bluez_manager_proxy = self.bus.get_object(
"org.bluez",
"/",
)
self.bluez_manager = dbus.Interface(
bluez_manager_proxy,
"org.bluez.Manager",
)
bluez_adapter_proxy = self.bus.get_object(
"org.bluez",
self.bluez_manager.DefaultAdapter(),
)
self.bluez_adapter = dbus.Interface(
bluez_adapter_proxy,
"org.bluez.Adapter",
)
bluez_device_proxy = self.bus.get_object(
"org.bluez",
self.bluez_adapter.FindDevice( self.address ),
)
self.bluez_device_headset = dbus.Interface(
bluez_device_proxy,
"org.bluez.Headset",
)
self.bluez_device_headset.Connect(
reply_handler=self.cbHeadsetConnetReply,
error_handler=self.cbHeadsetConnectError
)
def cbHeadsetConnectError( self, e ):
if e.get_dbus_name() == "org.bluez.Error.AlreadyConnected":
self.cbHeadsetConnetReply()
else:
logger.info( "BT connect error" )
raise
def cbHeadsetConnetReply( self ):
logger.info( "BT connect ok" )
if self._onAnswerRequested:
self._matchAnswerRequested = self.bluez_device_headset.connect_to_signal(
'AnswerRequested', self._onAnswerRequested
)
self._matchDisconnected = self.bluez_device_headset.connect_to_signal(
'Disconnected', self._onDisconnected
)
self.connected = True
if self._onConnectionStatus:
self._onConnectionStatus( self.connected )
def _startBT( self ):
try:
self.bluez_device_headset.Play()
except dbus.exceptions.DBusException, e:
if e.get_dbus_name() == "org.bluez.Error.AlreadyConnected":
pass
else:
raise
def _stopBT( self ):
self.bluez_device_headset.Stop()
def _disconnectBT( self ):
if self._matchAnswerRequested:
self._matchAnswerRequested.remove()
self._matchAnswerRequested = None
if self._matchDisconnected:
self._matchDisconnected.remove()
self._matchDisconnected = None
# if disconnect fails for any reason, we
# still cancel all BT, such that the audio
# will get routed back to the headset
try:
self.bluez_device_headset.Disconnect()
except:
pass
self.bluez_device_headset = None
self.bluez_adapter = None
self.bluez_manager = None
self.connected = False
if self._onConnectionStatus:
self._onConnectionStatus( self.connected )
def _onDisconnected( self ):
self._disconnectBT()
logger.info( "got disconnected" )
if self.address:
self.monitor = gobject.timeout_add_seconds( 10, self._handleMonitorTimeout )
def _updateConnected( self ):
if self.address and not self.connected:
self._connectBT()
def _handleMonitorTimeout( self ):
try:
self._updateConnected()
except:
logger.debug( "_handleMonitorTimeout failed:", exc_info=True )
if self.address and not self.connected:
return True
else:
return False
def setAddress( self, address ):
if self.address != address:
if self.connected:
self.setPlaying( False )
self._disconnectBT()
if self.address and not address:
self.usageiface.ReleaseResource(
"Bluetooth",
reply_handler=self.cbReleaseReply,
error_handler=self.cbReleaseError,
)
if not self.address and address:
try:
self.usageiface.RequestResource(
"Bluetooth",
reply_handler=self.cbRequestReply,
error_handler=self.cbRequestError,
)
except:
pass
self.monitor = gobject.timeout_add_seconds( 10, self._handleMonitorTimeout )
self.address = address
def cbRequestReply( self ):
logger.info( "Requested Bluetooth" )
def cbRequestError( self, e ):
log_dbus_error( e, "error while requesting Bluetooth" )
logger.info( "Requested Bluetooth with error" )
def cbReleaseReply( self ):
logger.info( "Released Bluetooth" )
def cbReleaseError( self, e ):
log_dbus_error( e, "error while releasing Bluetooth" )
logger.info( "Released Bluetooth with error" )
def getConnected( self ):
return self.connected
def setPlaying( self, playing ):
if not self.playing and playing:
if not self.connected:
raise HeadsetError("No connected")
self._startPCM()
self._startBT()
self.playing = True
elif self.playing and not playing:
self._stopBT()
self._stopPCM()
self.playing = False
def getPlaying( self ):
return self.playing
if __name__=="__main__":
m = HeadsetManager( dbus.SystemBus() )
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