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Reconnect on serial port errors for KISS interface

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This commit is contained in:
Mark Qvist 2021-12-05 11:44:30 +01:00
parent 7092589388
commit a692d29c90
1 changed files with 53 additions and 29 deletions
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82
RNS/Interfaces/KISSInterface.py
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@ -53,6 +53,7 @@ class KISSInterface(Interface):
if beacon_data == None:
beacon_data = ""
self.pyserial = serial
self.serial = None
self.owner = owner
self.name = name
@ -85,44 +86,52 @@ class KISSInterface(Interface):
self.parity = serial.PARITY_ODD
try:
RNS.log("Opening serial port "+self.port+"...")
self.serial = serial.Serial(
port = self.port,
baudrate = self.speed,
bytesize = self.databits,
parity = self.parity,
stopbits = self.stopbits,
xonxoff = False,
rtscts = False,
timeout = 0,
inter_byte_timeout = None,
write_timeout = None,
dsrdtr = False,
)
self.open_port()
except Exception as e:
RNS.log("Could not open serial port "+self.port, RNS.LOG_ERROR)
raise e
if self.serial.is_open:
# Allow time for interface to initialise before config
sleep(2.0)
thread = threading.Thread(target=self.readLoop)
thread.setDaemon(True)
thread.start()
self.online = True
RNS.log("Serial port "+self.port+" is now open")
RNS.log("Configuring KISS interface parameters...")
self.setPreamble(self.preamble)
self.setTxTail(self.txtail)
self.setPersistence(self.persistence)
self.setSlotTime(self.slottime)
self.setFlowControl(self.flow_control)
self.interface_ready = True
RNS.log("KISS interface configured")
self.configure_device()
else:
raise IOError("Could not open serial port")
def open_port(self):
RNS.log("Opening serial port "+self.port+"...")
self.serial = self.pyserial.Serial(
port = self.port,
baudrate = self.speed,
bytesize = self.databits,
parity = self.parity,
stopbits = self.stopbits,
xonxoff = False,
rtscts = False,
timeout = 0,
inter_byte_timeout = None,
write_timeout = None,
dsrdtr = False,
)
def configure_device(self):
# Allow time for interface to initialise before config
sleep(2.0)
thread = threading.Thread(target=self.readLoop)
thread.setDaemon(True)
thread.start()
self.online = True
RNS.log("Serial port "+self.port+" is now open")
RNS.log("Configuring KISS interface parameters...")
self.setPreamble(self.preamble)
self.setTxTail(self.txtail)
self.setPersistence(self.persistence)
self.setSlotTime(self.slottime)
self.setFlowControl(self.flow_control)
self.interface_ready = True
RNS.log("KISS interface configured")
def setPreamble(self, preamble):
preamble_ms = preamble
preamble = int(preamble_ms / 10)
@ -295,5 +304,20 @@ class KISSInterface(Interface):
if RNS.Reticulum.panic_on_interface_error:
RNS.panic()
self.online = False
self.serial.close()
self.reconnect_port()
def reconnect_port(self):
while not self.online:
try:
time.sleep(5)
RNS.log("Attempting to reconnect serial port "+str(self.port)+" for "+str(self)+"...")
self.open_port()
if self.serial.is_open:
self.configure_device()
except Exception as e:
RNS.log("Error while reconnecting port, the contained exception was: "+str(e), RNS.LOG_ERROR)
def __str__(self):
return "KISSInterface["+self.name+"]"