def register_agent(capability):
bus = SystemBus()
manager = bus.get('org.bluez')['.AgentManager1']
manager.RegisterAgent(AGENT_PATH, capability)
logging.info(
'register_agent:manager.RegisterAgent(path=%s, capability=%s)' %
(AGENT_PATH, capability))
manager.RequestDefaultAgent(AGENT_PATH)
logging.info('register_agent:manager.RequestDefaultAgent(path=%s)' %
(AGENT_PATH))
bus.register_object(AGENT_PATH, Agent(), node_info=None)
logging.info('register_agent:bus.register_object(path=%s)' % (AGENT_PATH))
class Service:
"""
<node>
<interface name='soundcraft.utils.notepad'>
<property name='version' type='s' access='read' />
<property name='devices' type='ao' access='read'>
<annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="true"/>
</property>
<signal name='Added'>
<arg name='path' type='o'/>
</signal>
<signal name='Removed'>
<arg name='path' type='o'/>
</signal>
<method name='Shutdown'/>
</interface>
</node>
"""
InterfaceName = "soundcraft.utils.notepad"
PropertiesChanged = signal()
Added = signal()
Removed = signal()
def __init__(self):
self.object = None
self.bus = SystemBus()
self.udev = GUdev.Client(subsystems=["usb/usb_device"])
self.udev.connect("uevent", self.uevent)
self.loop = GLib.MainLoop()
self.busname = self.bus.publish(BUSNAME, self)
def run(self):
self.tryRegister()
if not self.hasDevice():
print(f"Waiting for one to arrive...")
self.loop.run()
@property
def version(self):
return soundcraft.__version__
@property
def devices(self):
if self.hasDevice():
return [self.object._path]
return []
def Shutdown(self):
print("Shutting down")
self.unregister()
self.loop.quit()
def objPath(self, idx):
return f"/soundcraft/utils/notepad/{idx}"
def tryRegister(self):
if self.hasDevice():
print(
f"There is already a {self.object._wrapped._dev.name} on the bus at {self.object._path}"
)
return
dev = soundcraft.notepad.autodetect()
if dev is None:
print(f"No recognised device was found")
return
# Reset any stored state
dev.resetState()
path = self.objPath(0)
wrapped = NotepadDbus(dev)
self.object = self.bus.register_object(path, wrapped, None)
self.object._wrapped = wrapped
self.object._path = path
print(
f"Presenting {self.object._wrapped._dev.name} on the system bus as {path}"
)
self.Added(path)
self.PropertiesChanged(self.InterfaceName, {"devices": self.devices},
[])
def hasDevice(self):
return self.object is not None
def unregister(self):
if not self.hasDevice():
return
path = self.object._path
print(
f"Removed {self.object._wrapped._dev.name} AKA {path} from the system bus"
)
self.object.unregister()
self.object = None
self.PropertiesChanged(self.InterfaceName, {"devices": self.devices},
[])
self.Removed(path)
def uevent(self, observer, action, device):
if action == "add":
idVendor = device.get_property("ID_VENDOR_ID")
idProduct = device.get_property("ID_PRODUCT_ID")
if idVendor == "05fc":
print(
f"Checking new Soundcraft device ({idVendor}:{idProduct})..."
)
self.tryRegister()
if not self.hasDevice():
print(
f"Contact the developer for help adding support for your advice"
)
elif action == "remove" and self.hasDevice():
# UDEV adds leading 0s to decimal numbers. They're not octal. Why??
busnum = int(device.get_property("BUSNUM").lstrip("0"))
devnum = int(device.get_property("DEVNUM").lstrip("0"))
objectdev = self.object._wrapped._dev.dev
if busnum == objectdev.bus and devnum == objectdev.address:
self.unregister()
def Appearance(self):
return 0x00C1
@property
@log
def Duration(self):
return 2
@property
@log
def Timeout(self):
return 120
if __name__ == '__main__':
bus = SystemBus()
loop = GLib.MainLoop()
obj_path = '/org/bluez/example/advertisement0'
bus.register_object(obj_path, LEAdvertisement1(), None)
mgr = bus.get('org.bluez','/org/bluez/hci0')
try:
print('Registering advertisement')
mgr.RegisterAdvertisement(obj_path, {})
loop.run()
except KeyboardInterrupt:
print('Unregistering advertisement')
mgr.UnregisterAdvertisement(obj_path)