Don't leak GVariant.
[sigrok-cli.git] / main.c
1 /*
2  * This file is part of the sigrok-cli project.
3  *
4  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
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 3 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 #include "sigrok-cli.h"
21 #include "config.h"
22 #include <glib.h>
23
24 struct sr_context *sr_ctx = NULL;
25 #ifdef HAVE_SRD
26 struct srd_session *srd_sess = NULL;
27 #endif
28
29 static gboolean opt_version = FALSE;
30 gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings by default. */
31 static gboolean opt_scan_devs = FALSE;
32 gboolean opt_wait_trigger = FALSE;
33 gchar *opt_input_file = NULL;
34 gchar *opt_output_file = NULL;
35 gchar *opt_drv = NULL;
36 gchar *opt_config = NULL;
37 static gchar *opt_probes = NULL;
38 gchar *opt_probe_group = NULL;
39 gchar *opt_triggers = NULL;
40 gchar *opt_pds = NULL;
41 #ifdef HAVE_SRD
42 static gchar *opt_pd_stack = NULL;
43 static gchar *opt_pd_annotations = NULL;
44 static gchar *opt_pd_meta = NULL;
45 static gchar *opt_pd_binary = NULL;
46 #endif
47 gchar *opt_input_format = NULL;
48 gchar *opt_output_format = NULL;
49 static gchar *opt_show = NULL;
50 gchar *opt_time = NULL;
51 gchar *opt_samples = NULL;
52 gchar *opt_frames = NULL;
53 gchar *opt_continuous = NULL;
54 static gchar *opt_set = NULL;
55
56 static GOptionEntry optargs[] = {
57         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
58                         "Show version and support list", NULL},
59         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
60                         "Set loglevel (5 is most verbose)", NULL},
61         {"driver", 'd', 0, G_OPTION_ARG_STRING, &opt_drv,
62                         "The driver to use", NULL},
63         {"config", 'c', 0, G_OPTION_ARG_STRING, &opt_config,
64                         "Specify device configuration options", NULL},
65         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
66                         "Load input from file", NULL},
67         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
68                         "Input format", NULL},
69         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
70                         "Save output to file", NULL},
71         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
72                         "Output format", NULL},
73         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
74                         "Probes to use", NULL},
75         {"probe-group", 'g', 0, G_OPTION_ARG_STRING, &opt_probe_group,
76                         "Probe groups", NULL},
77         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
78                         "Trigger configuration", NULL},
79         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
80                         "Wait for trigger", NULL},
81 #ifdef HAVE_SRD
82         {"protocol-decoders", 'P', 0, G_OPTION_ARG_STRING, &opt_pds,
83                         "Protocol decoders to run", NULL},
84         {"protocol-decoder-stack", 'S', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
85                         "Protocol decoder stack", NULL},
86         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
87                         "Protocol decoder annotation(s) to show", NULL},
88         {"protocol-decoder-meta", 'M', 0, G_OPTION_ARG_STRING, &opt_pd_meta,
89                         "Protocol decoder meta output to show", NULL},
90         {"protocol-decoder-binary", 'B', 0, G_OPTION_ARG_STRING, &opt_pd_binary,
91                         "Protocol decoder binary output to show", NULL},
92 #endif
93         {"scan", 0, 0, G_OPTION_ARG_NONE, &opt_scan_devs,
94                         "Scan for devices", NULL},
95         {"show", 0, 0, G_OPTION_ARG_NONE, &opt_show,
96                         "Show device detail", NULL},
97         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
98                         "How long to sample (ms)", NULL},
99         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
100                         "Number of samples to acquire", NULL},
101         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
102                         "Number of frames to acquire", NULL},
103         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
104                         "Sample continuously", NULL},
105         {"set", 0, 0, G_OPTION_ARG_NONE, &opt_set, "Set device options only", NULL},
106         {NULL, 0, 0, 0, NULL, NULL, NULL}
107 };
108
109
110 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
111                    const gchar *message, gpointer cb_data)
112 {
113         (void)log_domain;
114         (void)cb_data;
115
116         /*
117          * All messages, warnings, errors etc. go to stderr (not stdout) in
118          * order to not mess up the CLI tool data output, e.g. VCD output.
119          */
120         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
121                         || opt_loglevel > SR_LOG_WARN) {
122                 fprintf(stderr, "%s\n", message);
123                 fflush(stderr);
124         }
125
126         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL))
127                 exit(1);
128
129 }
130
131 int select_probes(struct sr_dev_inst *sdi)
132 {
133         struct sr_probe *probe;
134         GSList *selected_probes, *l;
135
136         if (!opt_probes)
137                 return SR_OK;
138
139         if (!(selected_probes = parse_probestring(sdi, opt_probes)))
140                 return SR_ERR;
141
142         for (l = sdi->probes; l; l = l->next) {
143                 probe = l->data;
144                 if (g_slist_find(selected_probes, probe))
145                         probe->enabled = TRUE;
146                 else
147                         probe->enabled = FALSE;
148         }
149         g_slist_free(selected_probes);
150
151         return SR_OK;
152 }
153
154 static void set_options(void)
155 {
156         struct sr_dev_inst *sdi;
157         GSList *devices;
158         GHashTable *devargs;
159
160         if (!opt_config) {
161                 g_critical("No setting specified.");
162                 return;
163         }
164
165         if (!(devargs = parse_generic_arg(opt_config, FALSE)))
166                 return;
167
168         if (!(devices = device_scan())) {
169                 g_critical("No devices found.");
170                 return;
171         }
172         sdi = devices->data;
173
174         if (sr_dev_open(sdi) != SR_OK) {
175                 g_critical("Failed to open device.");
176                 return;
177         }
178
179         set_dev_options(sdi, devargs);
180
181         sr_dev_close(sdi);
182         g_slist_free(devices);
183         g_hash_table_destroy(devargs);
184
185 }
186
187 int main(int argc, char **argv)
188 {
189         GOptionContext *context;
190         GError *error;
191         int ret;
192         char *help;
193
194         g_log_set_default_handler(logger, NULL);
195
196         context = g_option_context_new(NULL);
197         g_option_context_add_main_entries(context, optargs, NULL);
198
199         ret = 1;
200         error = NULL;
201         if (!g_option_context_parse(context, &argc, &argv, &error)) {
202                 g_critical("%s", error->message);
203                 goto done;
204         }
205
206         /* Set the loglevel (amount of messages to output) for libsigrok. */
207         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
208                 goto done;
209
210         if (sr_init(&sr_ctx) != SR_OK)
211                 goto done;
212
213 #ifdef HAVE_SRD
214         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
215         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
216                 goto done;
217
218         if (opt_pds) {
219                 if (srd_init(NULL) != SRD_OK)
220                         goto done;
221                 if (srd_session_new(&srd_sess) != SRD_OK) {
222                         g_critical("Failed to create new decode session.");
223                         goto done;
224                 }
225                 if (register_pds(opt_pds, opt_pd_annotations) != 0)
226                         goto done;
227                 if (setup_pd_stack(opt_pds, opt_pd_stack, opt_pd_annotations) != 0)
228                         goto done;
229
230                 /* Only one output type is ever shown. */
231                 if (opt_pd_binary) {
232                         if (setup_pd_binary(opt_pd_binary) != 0)
233                                 goto done;
234                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_BINARY,
235                                         show_pd_binary, NULL) != SRD_OK)
236                                 goto done;
237                 } else if (opt_pd_meta) {
238                         if (setup_pd_meta(opt_pd_meta) != 0)
239                                 goto done;
240                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_META,
241                                         show_pd_meta, NULL) != SRD_OK)
242                                 goto done;
243                 } else {
244                         if (opt_pd_annotations)
245                                 if (setup_pd_annotations(opt_pd_annotations) != 0)
246                                         goto done;
247                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_ANN,
248                                         show_pd_annotations, NULL) != SRD_OK)
249                                 goto done;
250                 }
251         }
252 #endif
253
254         if (setup_output_format() != 0)
255                 goto done;
256
257         if (opt_version)
258                 show_version();
259         else if (opt_scan_devs)
260                 show_dev_list();
261 #ifdef HAVE_SRD
262         else if (opt_pds && opt_show)
263                 show_pd_detail();
264 #endif
265         else if (opt_show)
266                 show_dev_detail();
267         else if (opt_input_file)
268                 load_input_file();
269         else if (opt_set)
270                 set_options();
271         else if (opt_samples || opt_time || opt_frames || opt_continuous)
272                 run_session();
273         else {
274                 help = g_option_context_get_help(context, TRUE, NULL);
275                 printf("%s", help);
276                 g_free(help);
277         }
278
279 #ifdef HAVE_SRD
280         if (opt_pds)
281                 srd_exit();
282 #endif
283
284         ret = 0;
285
286 done:
287         if (sr_ctx)
288                 sr_exit(sr_ctx);
289
290         g_option_context_free(context);
291
292         return ret;
293 }