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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 extern "C" {
  22 #include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
  23 #include <stdint.h>
  24 #include <libsigrok/libsigrok.h>
  25 }
  26
  27 #include <getopt.h>
  28
  29 #include <QtGui/QApplication>
  30 #include <QDebug>
  31
  32 #include "pv/mainwindow.h"
  33
  34 #include "config.h"
  35
  36 void usage()
  37 {
  38         fprintf(stderr,
  39                 "Usage:\n"
  40                 "  %s — %s\n"
  41                 "\n"
  42                 "Help Options:\n"
  43                 "  -V, --version                   Show release version\n"
  44                 "  -h, -?, --help                  Show help option\n"
  45                 "\n", PV_BIN_NAME, PV_DESCRIPTION);
  46 }
  47
  48 int main(int argc, char *argv[])
  49 {
  50         int ret = 0;
  51         struct sr_context *sr_ctx = NULL;
  52
  53         QApplication a(argc, argv);
  54
  55         // Set some application metadata
  56         QApplication::setApplicationVersion(PV_VERSION_STRING);
  57         QApplication::setApplicationName("PulseView");
  58         QApplication::setOrganizationDomain("http://www.sigrok.org");
  59
  60         // Parse arguments
  61         while (1) {
  62                 static const struct option long_options[] = {
  63                         {"version", no_argument, 0, 'V'},
  64                         {"help", no_argument, 0, 'h'},
  65                         {0, 0, 0, 0}
  66                 };
  67
  68                 const char c = getopt_long(argc, argv,
  69                         "Vh?", long_options, NULL);
  70                 if (c == -1)
  71                         break;
  72
  73                 switch (c) {
  74                 case 'V':
  75                         // Print version info
  76                         fprintf(stderr, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
  77                         return 0;
  78
  79                 case 'h':
  80                 case '?':
  81                         usage();
  82                         return 0;
  83                 }
  84         }
  85
  86         // Initialise libsigrok
  87         if (sr_init(&sr_ctx) != SR_OK) {
  88                 qDebug() << "ERROR: libsigrok init failed.";
  89                 return 1;
  90         }
  91
  92         // Initialise libsigrokdecode
  93         if (srd_init(NULL) == SRD_OK) {
  94
  95                 // Load the protocol decoders
  96                 srd_decoder_load_all();
  97
  98                 // Initialize all libsigrok drivers
  99                 sr_dev_driver **const drivers = sr_driver_list();
 100                 for (sr_dev_driver **driver = drivers; *driver; driver++) {
 101                         if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
 102                                 qDebug("Failed to initialize driver %s",
 103                                         (*driver)->name);
 104                                 ret = 1;
 105                                 break;
 106                         }
 107                 }
 108
 109                 if (ret == 0) {
 110                         // Initialise the main window
 111                         pv::MainWindow w;
 112                         w.show();
 113
 114                         // Run the application
 115                         ret = a.exec();
 116                 }
 117
 118                 // Destroy libsigrokdecode and libsigrok
 119                 srd_exit();
 120
 121         } else {
 122                 qDebug() << "ERROR: libsigrokdecode init failed.";
 123         }
 124
 125         if (sr_ctx)
 126                 sr_exit(sr_ctx);
 127
 128         return ret;
 129 }