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#!/usr/bin/env python
# Copyright 2008-2011 Steve Glass
#
# Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 Max H. Parke KA1RBI
#
# This file is part of OP25
#
# OP25 is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# OP25 is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU General Public License
# along with OP25; see the file COPYING. If not, write to the Free
# Software Foundation, Inc., 51 Franklin Street, Boston, MA
# 02110-1301, USA.
import sys
import curses
import curses.textpad
import time
import json
import threading
import traceback
from gnuradio import gr
class curses_terminal(threading.Thread):
def __init__(self, input_q, output_q, **kwds):
threading.Thread.__init__ (self, **kwds)
self.setDaemon(1)
self.input_q = input_q
self.output_q = output_q
self.keep_running = True
self.last_update = 0
self.auto_update = True
self.current_nac = None
self.start()
def setup_curses(self):
self.stdscr = curses.initscr()
curses.noecho()
curses.halfdelay(1)
self.top_bar = curses.newwin(1, 80, 0, 0)
self.freq_list = curses.newwin(20, 80, 1, 0)
self.active1 = curses.newwin(1, 80, 21, 0)
self.active2 = curses.newwin(1, 80, 22, 0)
self.prompt = curses.newwin(1, 10, 23, 0)
self.text_win = curses.newwin(1, 70, 23, 10)
self.textpad = curses.textpad.Textbox(self.text_win)
def end_curses(self):
try:
curses.endwin()
except:
pass
def do_auto_update(self):
UPDATE_INTERVAL = 1 # sec.
if not self.auto_update:
return False
if self.last_update + UPDATE_INTERVAL > time.time():
return False
self.last_update = time.time()
return True
def process_terminal_events(self):
# return true signifies end of main event loop
_ORD_S = ord('s')
_ORD_L = ord('l')
_ORD_H = ord('h')
COMMANDS = {_ORD_S: 'skip', _ORD_L: 'lockout', _ORD_H: 'hold'}
c = self.stdscr.getch()
if c == ord('u') or self.do_auto_update():
msg = gr.message().make_from_string('update', -2, 0, 0)
self.output_q.insert_tail(msg)
if c in COMMANDS.keys():
msg = gr.message().make_from_string(COMMANDS[c], -2, 0, 0)
self.output_q.insert_tail(msg)
elif c == ord('q'):
return True
elif c == ord('t'):
if self.current_nac:
msg = gr.message().make_from_string('add_default_config', -2, int(self.current_nac), 0)
self.output_q.insert_tail(msg)
elif c == ord('f'):
self.prompt.addstr(0, 0, 'Frequency')
self.prompt.refresh()
self.text_win.clear()
response = self.textpad.edit()
self.prompt.clear()
self.prompt.refresh()
self.text_win.clear()
self.text_win.refresh()
try:
freq = float(response)
if freq < 10000:
freq *= 1000000.0
except:
freq = None
if freq:
msg = gr.message().make_from_string('set_freq', -2, freq, 0)
self.output_q.insert_tail(msg)
elif c == ord('x'):
assert 1 == 0
return False
def process_json(self, js):
# return true signifies end of main event loop
msg = json.loads(js)
if msg['json_type'] == 'trunk_update':
nacs = [x for x in msg.keys() if x != 'json_type']
if not nacs:
return
times = {msg[nac]['last_tsbk']:nac for nac in nacs}
current_nac = times[ sorted(times.keys(), reverse=True)[0] ]
self.current_nac = current_nac
s = 'NAC 0x%x' % (int(current_nac))
s += ' WACN 0x%x' % (msg[current_nac]['wacn'])
s += ' SYSID 0x%x' % (msg[current_nac]['sysid'])
s += ' %f' % (msg[current_nac]['rxchan']/ 1000000.0)
s += '/%f' % (msg[current_nac]['txchan']/ 1000000.0)
s += ' tsbks %d' % (msg[current_nac]['tsbks'])
freqs = sorted(msg[current_nac]['frequencies'].keys())
s = s[:79]
self.top_bar.clear()
self.top_bar.addstr(0, 0, s)
self.top_bar.refresh()
self.freq_list.clear()
for i in xrange(len(freqs)):
s=msg[current_nac]['frequencies'][freqs[i]]
s = s[:79]
self.freq_list.addstr(i, 0, s)
self.freq_list.refresh()
self.stdscr.refresh()
elif msg['json_type'] == 'change_freq':
s = 'Frequency %f' % (msg['freq'] / 1000000.0)
if msg['tgid'] is not None:
s += ' Talkgroup ID %s' % (msg['tgid'])
if msg['tdma'] is not None:
s += ' TDMA Slot %s' % msg['tdma']
self.active1.clear()
self.active2.clear()
self.active1.addstr(0, 0, s)
self.active1.refresh()
if msg['tag']:
s = msg['tag']
s = s[:79]
self.active2.addstr(0, 0, s)
self.active2.refresh()
self.stdscr.refresh()
return False
def process_q_events(self):
# return true signifies end of main event loop
while True:
if self.input_q.empty_p():
break
msg = self.input_q.delete_head_nowait()
if msg.type() == -4:
return self.process_json(msg.to_string())
return False
def run(self):
try:
self.setup_curses()
while(self.keep_running):
if self.process_terminal_events():
break
if self.process_q_events():
break
except:
sys.stderr.write('terminal: exception occurred\n')
sys.stderr.write('terminal: exception:\n%s\n' % traceback.format_exc())
finally:
self.end_curses()
msg = gr.message().make_from_string('quit', -2, 0, 0)
self.output_q.insert_tail(msg)
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