119 lines
3.4 KiB
Python
119 lines
3.4 KiB
Python
import threading
|
|
from owrx.source import SdrService
|
|
from owrx.bands import Bandplan
|
|
from csdr import dsp, output
|
|
from owrx.wsjt import WsjtParser
|
|
from owrx.config import PropertyManager
|
|
|
|
import logging
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class ServiceOutput(output):
|
|
def __init__(self, frequency):
|
|
self.frequency = frequency
|
|
|
|
def receive_output(self, t, read_fn):
|
|
parser = WsjtParser(WsjtHandler())
|
|
parser.setDialFrequency(self.frequency)
|
|
target = self.pump(read_fn, parser.parse)
|
|
threading.Thread(target=target).start()
|
|
|
|
def supports_type(self, t):
|
|
return t == "wsjt_demod"
|
|
|
|
|
|
class ServiceHandler(object):
|
|
def __init__(self, source):
|
|
self.services = []
|
|
self.source = source
|
|
self.startupTimer = None
|
|
self.source.addClient(self)
|
|
self.source.getProps().collect("center_freq", "samp_rate").wire(self.onFrequencyChange)
|
|
self.scheduleServiceStartup()
|
|
|
|
def onSdrAvailable(self):
|
|
self.scheduleServiceStartup()
|
|
|
|
def onSdrUnavailable(self):
|
|
self.stopServices()
|
|
|
|
def isSupported(self, mode):
|
|
return mode in PropertyManager.getSharedInstance()["services_decoders"]
|
|
|
|
def stopServices(self):
|
|
for service in self.services:
|
|
service.stop()
|
|
self.services = []
|
|
|
|
def startServices(self):
|
|
for service in self.services:
|
|
service.start()
|
|
|
|
def onFrequencyChange(self, key, value):
|
|
self.stopServices()
|
|
if not self.source.isAvailable():
|
|
return
|
|
self.scheduleServiceStartup()
|
|
|
|
def scheduleServiceStartup(self):
|
|
if self.startupTimer:
|
|
self.startupTimer.cancel()
|
|
self.startupTimer = threading.Timer(10, self.updateServices)
|
|
self.startupTimer.start()
|
|
|
|
def updateServices(self):
|
|
logger.debug("re-scheduling services due to sdr changes")
|
|
self.stopServices()
|
|
cf = self.source.getProps()["center_freq"]
|
|
srh = self.source.getProps()["samp_rate"] / 2
|
|
frequency_range = (cf - srh, cf + srh)
|
|
self.services = [
|
|
self.setupService(dial["mode"], dial["frequency"])
|
|
for dial in Bandplan.getSharedInstance().collectDialFrequencies(frequency_range)
|
|
if self.isSupported(dial["mode"])
|
|
]
|
|
|
|
def setupService(self, mode, frequency):
|
|
logger.debug("setting up service {0} on frequency {1}".format(mode, frequency))
|
|
d = dsp(ServiceOutput(frequency))
|
|
d.nc_port = self.source.getPort()
|
|
d.set_offset_freq(frequency - self.source.getProps()["center_freq"])
|
|
d.set_demodulator("usb")
|
|
d.set_bpf(0, 3000)
|
|
d.set_secondary_demodulator(mode)
|
|
d.set_audio_compression("none")
|
|
d.set_samp_rate(self.source.getProps()["samp_rate"])
|
|
d.start()
|
|
return d
|
|
|
|
|
|
class WsjtHandler(object):
|
|
def write_wsjt_message(self, msg):
|
|
pass
|
|
|
|
|
|
class ServiceManager(object):
|
|
sharedInstance = None
|
|
|
|
@staticmethod
|
|
def getSharedInstance():
|
|
if ServiceManager.sharedInstance is None:
|
|
ServiceManager.sharedInstance = ServiceManager()
|
|
return ServiceManager.sharedInstance
|
|
|
|
def start(self):
|
|
if not PropertyManager.getSharedInstance()["services_enabled"]:
|
|
return
|
|
for source in SdrService.getSources().values():
|
|
ServiceHandler(source)
|
|
|
|
|
|
class Service(object):
|
|
pass
|
|
|
|
|
|
class WsjtService(Service):
|
|
pass
|