#

# Bridge between the Onkyo AVR EISCP remote control protocol and MQTT.

# Allows to remotely control networked Onkyo AVRs and get status

# information.

#

# Written and (C) 2015-16 by Oliver Wagner <owagner@tellerulam.com>

# Provided under the terms of the MIT license

#

# Requires:

# - onkyo-eiscp - https://github.com/miracle2k/onkyo-eiscp

# - Eclipse Paho for Python - http://www.eclipse.org/paho/clients/python/

#

import argparse

import logging

import logging.handlers

import time

import json

import paho.mqtt.client as mqtt

import eiscp

version="0.7"

parser = argparse.ArgumentParser(description='Bridge between onkyo-eiscp and MQTT')

parser.add_argument('--mqtt-host', default='localhost', help='MQTT server address. Defaults to "localhost"')

parser.add_argument('--mqtt-port', default='1883', type=int, help='MQTT server port. Defaults to 1883')

parser.add_argument('--mqtt-topic', default='onkyo/', help='Topic prefix to be used for subscribing/publishing. Defaults to "onkyo/"')

parser.add_argument('--onkyo-address', help='IP or hostname of the AVR. Defaults to autodiscover')

parser.add_argument('--onkyo-id', help='Device identifier of AVR to connecct to. Uses autodiscover')

parser.add_argument('--log', help='set log level to the specified value. Defaults to WARNING. Try DEBUG for maximum detail')

parser.add_argument('--syslog', action='store_true', help='enable logging to syslog')

args=parser.parse_args()

if args.log:

logging.getLogger().setLevel(args.log)

if args.syslog:

logging.getLogger().addHandler(logging.handlers.SysLogHandler())

topic=args.mqtt_topic

if not topic.endswith("/"):

topic+="/"

lastSend=0

logging.info('Starting onkyo2mqtt V%s with topic prefix \"%s\"' %(version, topic))

def sendavr(cmd):

logging.info("Sent command %s" % (cmd))

def msghandler(mqc,userdata,msg):

logging.warning("Error processing message %s" % e)

def connecthandler(mqc,userdata,rc):

mqc.publish(topic+"connected",2,qos=1,retain=True)

def disconnecthandler(mqc,userdata,rc):

logging.warning("Disconnected from MQTT broker with rc=%d" % (rc))

time.sleep(5)

mqc=mqtt.Client()

mqc.on_message=msghandler

mqc.on_connect=connecthandler

mqc.on_disconnect=disconnecthandler

mqc.will_set(topic+"connected",0,qos=2,retain=True)

mqc.connect(args.mqtt_host,args.mqtt_port,60)

mqc.publish(topic+"connected",1,qos=1,retain=True)

if args.onkyo_address:

receiver=eiscp.eISCP(args.onkyo_address)

else:

logging.info('Starting auto-discovery of Onkyo AVRs')

receivers=eiscp.eISCP.discover()

for receiver in receivers:

logging.info("Disocvered %s at %s:%s with id %s" % (

receiver.info['model_name'], receiver.host, receiver.port, receiver.info['identifier']))

if args.onkyo_id:

receivers=[r for r in receivers

if args.onkyo_id in r.info['identifier']]

if len(receivers)==0:

logging.warning("No specified AVRs discovered")

exit(1)

elif len(receivers)!=1:

logging.warning("More than one AVR discovered, please specify explicitely using --onkyo-address or --onkyo-id")

exit(1)

receiver=receivers.pop(0)

logging.info('Discovered AVR at %s',receiver)

# Query some initial values

for icmd in ("PWR","MVL","SLI","SLA","LMD"):

sendavr(icmd+"QSTN")

mqc.loop_start()

def publish(suffix,val,raw):

mqc.publish(topic+"status/"+suffix,json.dumps(robj),qos=0,retain=True)

while True:

msg=receiver.get(3600)

if msg is not None:

try:

parsed=eiscp.core.iscp_to_command(msg)

# Either part of the parsed command can be a list

if isinstance(parsed[1],str) or isinstance(parsed[1],int):

val=parsed[1]

else:

val=parsed[1][0]

if isinstance(parsed[0],str):

publish(parsed[0],val,msg)

else:

for pp in parsed[0]:

publish(pp,val,msg)

except:

publish(msg[:3],msg[3:],msg)