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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 #include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
22 #include <signal.h>
23 #include <stdint.h>
24 #include <libsigrok/libsigrok.h>
25
26 #include <getopt.h>
27
28 #include <QtGui/QApplication>
29 #include <QDebug>
30
31 #include "pv/mainwindow.h"
32
33 #include "config.h"
34
35 // Global pointer to our QApplication
36 QApplication *g_app = NULL;
37
38 void usage()
39 {
40         fprintf(stdout,
41                 "Usage:\n"
42                 "  %s — %s\n"
43                 "\n"
44                 "Help Options:\n"
45                 "  -V, --version                   Show release version\n"
46                 "  -h, -?, --help                  Show help option\n"
47                 "\n", PV_BIN_NAME, PV_DESCRIPTION);
48 }
49
50 /*
51  * SIGINT handler (likely received Ctrl-C from terminal)
52  */
53 void sigint_handler(int param)
54 {
55         (void)param;
56
57         qDebug("Received SIGINT.");
58
59         if (g_app)
60                 g_app->quit();
61 }
62
63 int main(int argc, char *argv[])
64 {
65         int ret = 0;
66         struct sr_context *sr_ctx = NULL;
67
68         // Register a SIGINT handler
69         signal(SIGINT, sigint_handler);
70
71         QApplication a(argc, argv);
72         // Now we have an application to populate our global pointer
73         g_app = &a;
74
75         // Set some application metadata
76         QApplication::setApplicationVersion(PV_VERSION_STRING);
77         QApplication::setApplicationName("PulseView");
78         QApplication::setOrganizationDomain("http://www.sigrok.org");
79
80         // Parse arguments
81         while (1) {
82                 static const struct option long_options[] = {
83                         {"version", no_argument, 0, 'V'},
84                         {"help", no_argument, 0, 'h'},
85                         {0, 0, 0, 0}
86                 };
87
88                 const char c = getopt_long(argc, argv,
89                         "Vh?", long_options, NULL);
90                 if (c == -1)
91                         break;
92
93                 switch (c) {
94                 case 'V':
95                         // Print version info
96                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
97                         return 0;
98
99                 case 'h':
100                 case '?':
101                         usage();
102                         return 0;
103                 }
104         }
105
106         // Initialise libsigrok
107         if (sr_init(&sr_ctx) != SR_OK) {
108                 qDebug() << "ERROR: libsigrok init failed.";
109                 return 1;
110         }
111
112         // Initialise libsigrokdecode
113         if (srd_init(NULL) == SRD_OK) {
114
115                 // Load the protocol decoders
116                 srd_decoder_load_all();
117
118                 // Initialize all libsigrok drivers
119                 sr_dev_driver **const drivers = sr_driver_list();
120                 for (sr_dev_driver **driver = drivers; *driver; driver++) {
121                         if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
122                                 qDebug("Failed to initialize driver %s",
123                                         (*driver)->name);
124                                 ret = 1;
125                                 break;
126                         }
127                 }
128
129                 if (ret == 0) {
130                         // Initialise the main window
131                         pv::MainWindow w;
132                         w.show();
133
134                         // Run the application
135                         ret = a.exec();
136                 }
137
138                 // Destroy libsigrokdecode and libsigrok
139                 srd_exit();
140
141         } else {
142                 qDebug() << "ERROR: libsigrokdecode init failed.";
143         }
144
145         if (sr_ctx)
146                 sr_exit(sr_ctx);
147
148         return ret;
149 }