188 lines
7.9 KiB
Python
Executable File
188 lines
7.9 KiB
Python
Executable File
#!/usr/bin/env python
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#
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###############################################################################
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# Copyright (C) 2016-2019 Cortney T. Buffington, N0MJS <n0mjs@me.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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###############################################################################
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'''
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This module is used to extract the AMBE72, FEC encoded data needed to make DMR
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frames. It prints out a list of lists, the outer list contains the word and each
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of the inner lists has two elements that comprise the 3 AMBE frames sent in each
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DMR packet. The frames are split into 1.5 frames and 1.5 frames, that is to say
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the two 108 bit segments used in DMR bursts.
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This program is intended to produce the data needed to build words (or phrases)
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that can be used to populate the voice_lib.py file. It does not write the file
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for you, you must copy the output and paste them into the file. Most of the
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formatting, but not all, is done for you.
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It will not process OpenBridge systems, and it is strongly recommended you only
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use it with one system in the hblink.cfg file at a time -- otherwise things can
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get really out of hand quickly.
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This is a program for ADVANCED USERS ONLY. I really mean it this time, if you're
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not comfortable with how DMR packets are structured and basic Python, this isn't
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going to work well for you.
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'''
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# Python modules we need
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from bitarray import bitarray
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# Twisted is pretty important, so I keep it separate
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from twisted.internet.protocol import Factory, Protocol
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from twisted.internet import reactor
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# Things we import from the main hblink module
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from hblink import HBSYSTEM, systems, hblink_handler
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from dmr_utils3.utils import int_id
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import config
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import log
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# The module needs logging, but handlers, etc. are controlled by the parent
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import logging
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logger = logging.getLogger(__name__)
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# Does anybody read this stuff? There's a PEP somewhere that says I should do this.
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__author__ = 'Cortney T. Buffington, N0MJS'
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__copyright__ = 'Copyright (c) 2016-2019 Cortney T. Buffington, N0MJS and the K0USY Group'
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__credits__ = 'Colin Durbridge, G4EML, Steve Zingman, N4IRS; Mike Zingman, N4IRR; Jonathan Naylor, G4KLX; Hans Barthen, DL5DI; Torsten Shultze, DG1HT'
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__license__ = 'GNU GPLv3'
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__maintainer__ = 'Cort Buffington, N0MJS'
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__email__ = 'n0mjs@me.com'
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# Module gobal varaibles
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# Precalculated "dmrbits" (DMRD packet byte 15) -- just (slot << 7 | this value) and you're good to go!
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HEADBITS = 0b00100001
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BURSTBITS = [0b00010000,0b00000001,0b00000010,0b00000011,0b00000100,0b00000101]
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TERMBITS = 0b00100010
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class HBP(HBSYSTEM):
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def __init__(self, _name, _config, _report):
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HBSYSTEM.__init__(self, _name, _config, _report)
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self.current_stream = '\x00'
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def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
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dmr = _data[20:53]
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bits = _data[15] & ~(1<<7)
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dmrraw = bitarray(endian='big')
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dmrraw.frombytes(dmr)
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if bits == HEADBITS:
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if self.current_stream != _stream_id:
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print('START STREAM ID {} ON SLOT {} FROM SUBSCRIBER {} TO GROUP {}'.format(int_id(_stream_id), _slot, int_id(_rf_src), int_id(_dst_id)))
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print('[')
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self.current_stream = _stream_id
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if bits == TERMBITS:
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if self.current_stream == _stream_id:
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print(' ]')
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print('STOP STREAM ID {}'.format(int_id(_stream_id)))
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self.current_stream = '\x00'
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if bits == BURSTBITS[0]:
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bts = 'Burst A'
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sig = [dmrraw[:108], dmrraw[-108:]]
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print(' {},'.format(sig))
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if bits == BURSTBITS[1]:
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bts = 'Burst B'
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sig = [dmrraw[:108], dmrraw[-108:]]
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print(' {},'.format(sig))
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if bits == BURSTBITS[2]:
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bts = 'Burst C'
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sig = [dmrraw[:108], dmrraw[-108:]]
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print(' {},'.format(sig))
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if bits == BURSTBITS[3]:
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bts = 'Burst D'
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sig = [dmrraw[:108], dmrraw[-108:]]
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print(' {},'.format(sig))
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if bits == BURSTBITS[4]:
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bts = 'Burst E'
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sig = [dmrraw[:108], dmrraw[-108:]]
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print(' {},'.format(sig))
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if bits == BURSTBITS[5]:
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bts = 'Burst F'
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sig = [dmrraw[:108], dmrraw[-108:]]
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print(' {},'.format(sig))
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#************************************************
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# MAIN PROGRAM LOOP STARTS HERE
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#************************************************
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if __name__ == '__main__':
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import argparse
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import sys
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import os
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import signal
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# Change the current directory to the location of the application
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os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))
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# CLI argument parser - handles picking up the config file from the command line, and sending a "help" message
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parser = argparse.ArgumentParser()
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parser.add_argument('-c', '--config', action='store', dest='CONFIG_FILE', help='/full/path/to/config.file (usually hblink.cfg)')
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parser.add_argument('-l', '--logging', action='store', dest='LOG_LEVEL', help='Override config file logging level.')
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cli_args = parser.parse_args()
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# Ensure we have a path for the config file, if one wasn't specified, then use the default (top of file)
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if not cli_args.CONFIG_FILE:
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cli_args.CONFIG_FILE = os.path.dirname(os.path.abspath(__file__))+'/hblink.cfg'
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# Call the external routine to build the configuration dictionary
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CONFIG = config.build_config(cli_args.CONFIG_FILE)
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# Start the system logger
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if cli_args.LOG_LEVEL:
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CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL
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logger = log.config_logging(CONFIG['LOGGER'])
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logger.info('\n\nCopyright (c) 2013, 2014, 2015, 2016, 2018, 2019\n\tThe Regents of the K0USY Group. All rights reserved.\n')
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logger.debug('(GLOBAL) Logging system started, anything from here on gets logged')
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# Set up the signal handler
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def sig_handler(_signal, _frame):
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logger.info('(GLOBAL) SHUTDOWN: CONFBRIDGE IS TERMINATING WITH SIGNAL %s', str(_signal))
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hblink_handler(_signal, _frame)
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logger.info('(GLOBAL) SHUTDOWN: ALL SYSTEM HANDLERS EXECUTED - STOPPING REACTOR')
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reactor.stop()
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# Set signal handers so that we can gracefully exit if need be
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for sig in [signal.SIGINT, signal.SIGTERM]:
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signal.signal(sig, sig_handler)
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# INITIALIZE THE REPORTING LOOP
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report_server = None
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# HBlink instance creation
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logger.info('(GLOBAL) HBlink \'bridge.py\' -- SYSTEM STARTING...')
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for system in CONFIG['SYSTEMS']:
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if CONFIG['SYSTEMS'][system]['ENABLED']:
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if CONFIG['SYSTEMS'][system]['MODE'] == 'MASTER' or CONFIG['SYSTEMS'][system]['MODE'] == 'PEER':
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systems[system] = HBP(system, CONFIG, report_server)
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reactor.listenUDP(CONFIG['SYSTEMS'][system]['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['IP'])
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logger.debug('(GLOBAL) %s instance created: %s, %s', CONFIG['SYSTEMS'][system]['MODE'], system, systems[system])
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def loopingErrHandle(failure):
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logger.error('(GLOBAL) STOPPING REACTOR TO AVOID MEMORY LEAK: Unhandled error in timed loop.\n %s', failure)
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reactor.stop()
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reactor.run() |