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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 extern "C" {
22 #include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
23 #include <signal.h>
24 #include <stdint.h>
25 #include <libsigrok/libsigrok.h>
26 }
27
28 #include <getopt.h>
29
30 #include <QtGui/QApplication>
31 #include <QDebug>
32
33 #include "pv/mainwindow.h"
34
35 #include "config.h"
36
37 // Global pointer to our QApplication
38 QApplication *g_app = NULL;
39
40 void usage()
41 {
42         fprintf(stdout,
43                 "Usage:\n"
44                 "  %s — %s\n"
45                 "\n"
46                 "Help Options:\n"
47                 "  -V, --version                   Show release version\n"
48                 "  -h, -?, --help                  Show help option\n"
49                 "\n", PV_BIN_NAME, PV_DESCRIPTION);
50 }
51
52 /*
53  * SIGINT handler (likely received Ctrl-C from terminal)
54  */
55 void sigint_handler(int param)
56 {
57         (void)param;
58
59         qDebug("Received SIGINT.");
60
61         if (g_app)
62                 g_app->quit();
63 }
64
65 int main(int argc, char *argv[])
66 {
67         int ret = 0;
68         struct sr_context *sr_ctx = NULL;
69
70         // Register a SIGINT handler
71         signal(SIGINT, sigint_handler);
72
73         QApplication a(argc, argv);
74         // Now we have an application to populate our global pointer
75         g_app = &a;
76
77         // Set some application metadata
78         QApplication::setApplicationVersion(PV_VERSION_STRING);
79         QApplication::setApplicationName("PulseView");
80         QApplication::setOrganizationDomain("http://www.sigrok.org");
81
82         // Parse arguments
83         while (1) {
84                 static const struct option long_options[] = {
85                         {"version", no_argument, 0, 'V'},
86                         {"help", no_argument, 0, 'h'},
87                         {0, 0, 0, 0}
88                 };
89
90                 const char c = getopt_long(argc, argv,
91                         "Vh?", long_options, NULL);
92                 if (c == -1)
93                         break;
94
95                 switch (c) {
96                 case 'V':
97                         // Print version info
98                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
99                         return 0;
100
101                 case 'h':
102                 case '?':
103                         usage();
104                         return 0;
105                 }
106         }
107
108         // Initialise libsigrok
109         if (sr_init(&sr_ctx) != SR_OK) {
110                 qDebug() << "ERROR: libsigrok init failed.";
111                 return 1;
112         }
113
114         // Initialise libsigrokdecode
115         if (srd_init(NULL) == SRD_OK) {
116
117                 // Load the protocol decoders
118                 srd_decoder_load_all();
119
120                 // Initialize all libsigrok drivers
121                 sr_dev_driver **const drivers = sr_driver_list();
122                 for (sr_dev_driver **driver = drivers; *driver; driver++) {
123                         if (sr_driver_init(sr_ctx, *driver) != SR_OK) {
124                                 qDebug("Failed to initialize driver %s",
125                                         (*driver)->name);
126                                 ret = 1;
127                                 break;
128                         }
129                 }
130
131                 if (ret == 0) {
132                         // Initialise the main window
133                         pv::MainWindow w;
134                         w.show();
135
136                         // Run the application
137                         ret = a.exec();
138                 }
139
140                 // Destroy libsigrokdecode and libsigrok
141                 srd_exit();
142
143         } else {
144                 qDebug() << "ERROR: libsigrokdecode init failed.";
145         }
146
147         if (sr_ctx)
148                 sr_exit(sr_ctx);
149
150         return ret;
151 }