main.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifdef ENABLE_DECODE
  21 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
  22 #endif
  23
  24 #include <cstdint>
  25 #include <libsigrokcxx/libsigrokcxx.hpp>
  26
  27 #include <getopt.h>
  28
  29 #include <QDebug>
  30 #include <QSettings>
  31
  32 #ifdef ENABLE_SIGNALS
  33 #include "signalhandler.hpp"
  34 #endif
  35
  36 #include "pv/application.hpp"
  37 #include "pv/devicemanager.hpp"
  38 #include "pv/mainwindow.hpp"
  39 #include "pv/session.hpp"
  40 #ifdef ANDROID
  41 #include <libsigrokandroidutils/libsigrokandroidutils.h>
  42 #include "android/assetreader.hpp"
  43 #include "android/loghandler.hpp"
  44 #endif
  45
  46 #include "config.h"
  47
  48 #ifdef _WIN32
  49 #include <QtPlugin>
  50 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
  51 Q_IMPORT_PLUGIN(QSvgPlugin)
  52 #endif
  53
  54 using std::exception;
  55 using std::shared_ptr;
  56 using std::string;
  57
  58 void usage()
  59 {
  60         fprintf(stdout,
  61                 "Usage:\n"
  62                 "  %s [OPTIONS] [FILE]\n"
  63                 "\n"
  64                 "Help Options:\n"
  65                 "  -h, -?, --help                  Show help option\n"
  66                 "\n"
  67                 "Application Options:\n"
  68                 "  -V, --version                   Show release version\n"
  69                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
  70                 "  -d, --driver                    Specify the device driver to use\n"
  71                 "  -D, --no-scan                   Don't auto-scan for devices, use -d spec only\n"
  72                 "  -i, --input-file                Load input from file\n"
  73                 "  -I, --input-format              Input format\n"
  74                 "  -c, --clean                     Don't restore previous sessions on startup\n"
  75                 "\n", PV_BIN_NAME);
  76 }
  77
  78 int main(int argc, char *argv[])
  79 {
  80         int ret = 0;
  81         shared_ptr<sigrok::Context> context;
  82         string open_file, open_file_format, driver;
  83         bool restore_sessions = true;
  84         bool do_scan = true;
  85
  86         Application a(argc, argv);
  87
  88 #ifdef ANDROID
  89         srau_init_environment();
  90         pv::AndroidLogHandler::install_callbacks();
  91         pv::AndroidAssetReader asset_reader;
  92 #endif
  93
  94         // Parse arguments
  95         while (true) {
  96                 static const struct option long_options[] = {
  97                         {"help", no_argument, nullptr, 'h'},
  98                         {"version", no_argument, nullptr, 'V'},
  99                         {"loglevel", required_argument, nullptr, 'l'},
 100                         {"driver", required_argument, nullptr, 'd'},
 101                         {"input-file", required_argument, nullptr, 'i'},
 102                         {"input-format", required_argument, nullptr, 'I'},
 103                         {"clean", no_argument, nullptr, 'c'},
 104                         {nullptr, 0, nullptr, 0}
 105                 };
 106
 107                 const int c = getopt_long(argc, argv,
 108                         "l:Vhc?d:Di:I:", long_options, nullptr);
 109                 if (c == -1)
 110                         break;
 111
 112                 switch (c) {
 113                 case 'h':
 114                 case '?':
 115                         usage();
 116                         return 0;
 117
 118                 case 'V':
 119                         // Print version info
 120                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
 121                         return 0;
 122
 123                 case 'l':
 124                 {
 125                         const int loglevel = atoi(optarg);
 126                         if (loglevel < 0 || loglevel > 5) {
 127                                 qDebug() << "ERROR: invalid log level spec.";
 128                                 break;
 129                         }
 130                         context->set_log_level(sigrok::LogLevel::get(loglevel));
 131
 132 #ifdef ENABLE_DECODE
 133                         srd_log_loglevel_set(loglevel);
 134 #endif
 135
 136                         if (loglevel >= 5) {
 137                                 const QSettings settings;
 138                                 qDebug() << "Settings:" << settings.fileName()
 139                                         << "format" << settings.format();
 140                         }
 141                         break;
 142                 }
 143
 144                 case 'd':
 145                         driver = optarg;
 146                         break;
 147
 148                 case 'D':
 149                         do_scan = false;
 150                         break;
 151
 152                 case 'i':
 153                         open_file = optarg;
 154                         break;
 155
 156                 case 'I':
 157                         open_file_format = optarg;
 158                         break;
 159
 160                 case 'c':
 161                         restore_sessions = false;
 162                         break;
 163                 }
 164         }
 165
 166         if (argc - optind > 1) {
 167                 fprintf(stderr, "Only one file can be opened.\n");
 168                 return 1;
 169         }
 170
 171         if (argc - optind == 1)
 172                 open_file = argv[argc - 1];
 173
 174         // Initialise libsigrok
 175         context = sigrok::Context::create();
 176         pv::Session::sr_context = context;
 177
 178 #ifdef ANDROID
 179         context->set_resource_reader(&asset_reader);
 180 #endif
 181         do {
 182
 183 #ifdef ENABLE_DECODE
 184                 // Initialise libsigrokdecode
 185                 if (srd_init(nullptr) != SRD_OK) {
 186                         qDebug() << "ERROR: libsigrokdecode init failed.";
 187                         break;
 188                 }
 189
 190                 // Load the protocol decoders
 191                 srd_decoder_load_all();
 192 #endif
 193
 194                 try {
 195                         // Create the device manager, initialise the drivers
 196                         pv::DeviceManager device_manager(context, driver, do_scan);
 197
 198                         // Initialise the main window
 199                         pv::MainWindow w(device_manager);
 200                         w.show();
 201
 202                         if (restore_sessions)
 203                                 w.restore_sessions();
 204
 205                         if (!open_file.empty())
 206                                 w.add_session_with_file(open_file, open_file_format);
 207                         else
 208                                 w.add_default_session();
 209
 210 #ifdef ENABLE_SIGNALS
 211                         if (SignalHandler::prepare_signals()) {
 212                                 SignalHandler *const handler =
 213                                         new SignalHandler(&w);
 214                                 QObject::connect(handler,
 215                                         SIGNAL(int_received()),
 216                                         &w, SLOT(close()));
 217                                 QObject::connect(handler,
 218                                         SIGNAL(term_received()),
 219                                         &w, SLOT(close()));
 220                         } else {
 221                                 qWarning() <<
 222                                         "Could not prepare signal handler.";
 223                         }
 224 #endif
 225
 226                         // Run the application
 227                         ret = a.exec();
 228
 229                 } catch (exception e) {
 230                         qDebug() << e.what();
 231                 }
 232
 233 #ifdef ENABLE_DECODE
 234                 // Destroy libsigrokdecode
 235                 srd_exit();
 236 #endif
 237
 238         } while (false);
 239
 240         return ret;
 241 }