4 ## This file is part of the sigrok-meter project.
6 ## Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
8 ## This program is free software; you can redistribute it and/or modify
9 ## it under the terms of the GNU General Public License as published by
10 ## the Free Software Foundation; either version 2 of the License, or
11 ## (at your option) any later version.
13 ## This program is distributed in the hope that it will be useful,
14 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ## GNU General Public License for more details.
18 ## You should have received a copy of the GNU General Public License
19 ## along with this program; if not, write to the Free Software
20 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 from multiprocessing import Process, Queue
25 from gi.repository import Gtk, GObject
27 import sigrok.core as sr
31 default_drivers = [('demo', {'analog_channels': 1})]
32 default_loglevel = sr.LogLevel.WARN
34 def init_and_run(queue, drivers, loglevel):
35 def datafeed_in(device, packet):
36 if packet.type == sr.PacketType.ANALOG:
37 data = packet.payload.data
38 unit, unit_str = packet.payload.unit, ""
39 if unit == sr.Unit.VOLT:
41 elif unit == sr.Unit.OHM:
43 elif unit == sr.Unit.AMPERE:
45 mqflags, mqflags_str = packet.payload.mq_flags, ""
46 if sr.QuantityFlag.AC in mqflags:
48 elif sr.QuantityFlag.DC in mqflags:
50 for i in range(packet.payload.num_samples):
51 dev = "%s %s" % (device.vendor, device.model)
52 val = "%f%s%s" % (data[0][i], unit_str, mqflags_str)
55 context = sr.Context_create()
56 context.log_level = loglevel
59 for name, options in drivers:
61 dr = context.drivers[name]
62 devices.append(dr.scan(**options)[0])
64 print('error getting device for driver "{}", skipping'.format(name))
67 print('no devices found')
70 session = context.create_session()
72 session.add_device(dev)
74 session.add_datafeed_callback(datafeed_in)
81 self.builder = Gtk.Builder()
82 self.builder.add_from_file("sigrok-meter.glade")
83 self.builder.connect_signals(self)
84 self.value_label = self.builder.get_object("value_label")
85 self.value_label2 = self.builder.get_object("value_label2")
86 self.win = self.builder.get_object("mainwindow")
89 GObject.timeout_add(100, self.update_label_if_needed)
91 def update_label_if_needed(self):
93 t = self.queue.get_nowait()
94 l = self.value_label if t[0] != "Victor" else self.value_label2
95 l.set_text("%s: %s" % (t[0], t[1]))
98 GObject.timeout_add(100, self.update_label_if_needed)
100 def on_quit(self, *args):
103 def on_about(self, action):
104 about = self.builder.get_object("aboutdialog")
105 context = sr.Context_create()
106 sr_pkg = context.package_version
107 sr_lib = context.lib_version
108 s = "Using libsigrok %s (lib version %s)." % (sr_pkg, sr_lib)
109 about.set_comments(s)
114 parser = argparse.ArgumentParser(
115 description='Simple sigrok GUI for multimeters and dataloggers.',
116 epilog=textwrap.dedent('''\
117 The DRIVER string is the same as for sigrok-cli(1).
121 %(prog)s --driver tecpel-dmm-8061-ser:conn=/dev/ttyUSB0
123 %(prog)s --driver uni-t-ut61e:conn=1a86.e008
125 formatter_class=argparse.RawDescriptionHelpFormatter)
127 parser.add_argument('-d', '--driver',
129 help='The driver to use')
130 parser.add_argument('-l', '--loglevel',
132 help='Set loglevel (5 is most verbose)')
133 args = parser.parse_args()
136 'drivers': default_drivers,
137 'loglevel': default_loglevel
141 result['drivers'] = []
142 for d in args.driver:
143 m = re.match('(?P<name>[^:]+)(?P<opts>(:[^:=]+=[^:=]+)*)', d)
145 sys.exit('error parsing option "{}"'.format(d))
147 opts = m.group('opts').split(':')[1:]
148 opts = [tuple(kv.split('=')) for kv in opts]
151 result['drivers'].append((m.group('name'), opts))
153 if args.loglevel != None:
155 result['loglevel'] = sr.LogLevel.get(args.loglevel)
157 sys.exit('error: invalid log level')
161 if __name__ == '__main__':
164 process = Process(target=init_and_run,
165 args=(s.queue, args['drivers'], args['loglevel']))