Enumerate output module options according to API change.
[sigrok-cli.git] / show.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 <glib.h>
22 #include <string.h>
23
24 static gint sort_inputs(gconstpointer a, gconstpointer b)
25 {
26         const struct sr_input_format *ia = a, *ib = b;
27
28         return strcmp(ia->id, ib->id);
29 }
30
31 static gint sort_outputs(gconstpointer a, gconstpointer b)
32 {
33         return strcmp(sr_output_id_get((struct sr_output_module *)a),
34                         sr_output_id_get((struct sr_output_module *)b));
35 }
36
37 static gint sort_drivers(gconstpointer a, gconstpointer b)
38 {
39         const struct sr_dev_driver *sdda = a, *sddb = b;
40
41         return strcmp(sdda->name, sddb->name);
42 }
43
44 #ifdef HAVE_SRD
45 static gint sort_pds(gconstpointer a, gconstpointer b)
46 {
47         const struct srd_decoder *sda = a, *sdb = b;
48
49         return strcmp(sda->id, sdb->id);
50 }
51 #endif
52
53 void show_version(void)
54 {
55         struct sr_dev_driver **drivers, *driver;
56         struct sr_input_format **inputs, *input;
57         const struct sr_output_module **outputs, *output;
58         const GSList *l;
59         GSList *sl;
60         int i;
61 #ifdef HAVE_SRD
62         struct srd_decoder *dec;
63 #endif
64
65         printf("sigrok-cli %s\n\n", VERSION);
66
67         printf("Using libsigrok %s (lib version %s).\n",
68                sr_package_version_string_get(), sr_lib_version_string_get());
69 #ifdef HAVE_SRD
70         printf("Using libsigrokdecode %s (lib version %s).\n\n",
71                srd_package_version_string_get(), srd_lib_version_string_get());
72 #endif
73
74         printf("Supported hardware drivers:\n");
75         drivers = sr_driver_list();
76         for (sl = NULL, i = 0; drivers[i]; i++)
77                 sl = g_slist_append(sl, drivers[i]);
78         sl = g_slist_sort(sl, sort_drivers);
79         for (l = sl; l; l = l->next) {
80                 driver = l->data;
81                 printf("  %-20s %s\n", driver->name, driver->longname);
82         }
83         printf("\n");
84         g_slist_free(sl);
85
86         printf("Supported input formats:\n");
87         inputs = sr_input_list();
88         for (sl = NULL, i = 0; inputs[i]; i++)
89                 sl = g_slist_append(sl, inputs[i]);
90         sl = g_slist_sort(sl, sort_inputs);
91         for (l = sl; l; l = l->next) {
92                 input = l->data;
93                 printf("  %-20s %s\n", input->id, input->description);
94         }
95         printf("\n");
96         g_slist_free(sl);
97
98         printf("Supported output formats:\n");
99         outputs = sr_output_list();
100         for (sl = NULL, i = 0; outputs[i]; i++)
101                 sl = g_slist_append(sl, (gpointer)outputs[i]);
102         sl = g_slist_sort(sl, sort_outputs);
103         for (l = sl; l; l = l->next) {
104                 output = l->data;
105                 printf("  %-20s %s\n", sr_output_id_get(output),
106                                 sr_output_description_get(output));
107         }
108         printf("\n");
109         g_slist_free(sl);
110
111 #ifdef HAVE_SRD
112         if (srd_init(NULL) == SRD_OK) {
113                 printf("Supported protocol decoders:\n");
114                 srd_decoder_load_all();
115                 sl = g_slist_copy((GSList *)srd_decoder_list());
116                 sl = g_slist_sort(sl, sort_pds);
117                 for (l = sl; l; l = l->next) {
118                         dec = l->data;
119                         printf("  %-20s %s\n", dec->id, dec->longname);
120                         /* Print protocol description upon "-l 3" or higher. */
121                         if (opt_loglevel >= SR_LOG_INFO)
122                                 printf("  %-20s %s\n", "", dec->desc);
123                 }
124                 g_slist_free(sl);
125                 srd_exit();
126         }
127         printf("\n");
128 #endif
129 }
130
131 static gint sort_channels(gconstpointer a, gconstpointer b)
132 {
133         const struct sr_channel *pa = a, *pb = b;
134
135         return pa->index - pb->index;
136 }
137
138 static void print_dev_line(const struct sr_dev_inst *sdi)
139 {
140         struct sr_channel *ch;
141         GSList *sl, *l;
142         GString *s;
143         GVariant *gvar;
144
145         s = g_string_sized_new(128);
146         g_string_assign(s, sdi->driver->name);
147         if (sr_config_get(sdi->driver, sdi, NULL, SR_CONF_CONN, &gvar) == SR_OK) {
148                 g_string_append(s, ":conn=");
149                 g_string_append(s, g_variant_get_string(gvar, NULL));
150                 g_variant_unref(gvar);
151         }
152         g_string_append(s, " - ");
153         if (sdi->vendor && sdi->vendor[0])
154                 g_string_append_printf(s, "%s ", sdi->vendor);
155         if (sdi->model && sdi->model[0])
156                 g_string_append_printf(s, "%s ", sdi->model);
157         if (sdi->version && sdi->version[0])
158                 g_string_append_printf(s, "%s ", sdi->version);
159         if (sdi->channels) {
160                 if (g_slist_length(sdi->channels) == 1) {
161                         ch = sdi->channels->data;
162                         g_string_append_printf(s, "with 1 channel: %s", ch->name);
163                 } else {
164                         sl = g_slist_sort(g_slist_copy(sdi->channels), sort_channels);
165                         g_string_append_printf(s, "with %d channels:", g_slist_length(sl));
166                         for (l = sl; l; l = l->next) {
167                                 ch = l->data;
168                                 g_string_append_printf(s, " %s", ch->name);
169                         }
170                         g_slist_free(sl);
171                 }
172         }
173         g_string_append_printf(s, "\n");
174         printf("%s", s->str);
175         g_string_free(s, TRUE);
176
177 }
178
179 void show_dev_list(void)
180 {
181         struct sr_dev_inst *sdi;
182         GSList *devices, *l;
183
184         if (!(devices = device_scan()))
185                 return;
186
187         printf("The following devices were found:\n");
188         for (l = devices; l; l = l->next) {
189                 sdi = l->data;
190                 print_dev_line(sdi);
191         }
192         g_slist_free(devices);
193
194 }
195
196 void show_dev_detail(void)
197 {
198         struct sr_dev_inst *sdi;
199         const struct sr_config_info *srci;
200         struct sr_channel *ch;
201         struct sr_channel_group *channel_group, *cg;
202         GSList *devices, *cgl, *chl;
203         GVariant *gvar_opts, *gvar_dict, *gvar_list, *gvar;
204         gsize num_opts, num_elements;
205         double dlow, dhigh, dcur_low, dcur_high;
206         const uint64_t *uint64, p, q, low, high;
207         uint64_t cur_low, cur_high;
208         const int32_t *int32, *opts;
209         unsigned int num_devices, o, i;
210         char *tmp_str;
211         char *s, c;
212         const char **stropts;
213
214         if (!(devices = device_scan())) {
215                 g_critical("No devices found.");
216                 return;
217         }
218
219         num_devices = g_slist_length(devices);
220         if (num_devices > 1) {
221                 g_critical("%d devices found. Use --scan to show them, "
222                                 "and select one to show.", num_devices);
223                 return;
224         }
225
226         sdi = devices->data;
227         g_slist_free(devices);
228         print_dev_line(sdi);
229
230         if (sr_dev_open(sdi) != SR_OK) {
231                 g_critical("Failed to open device.");
232                 return;
233         }
234
235         if ((sr_config_list(sdi->driver, NULL, NULL, SR_CONF_SCAN_OPTIONS,
236                         &gvar_opts) == SR_OK)) {
237                 opts = g_variant_get_fixed_array(gvar_opts, &num_elements,
238                                 sizeof(int32_t));
239                 printf("Supported driver options:\n");
240                 for (i = 0; i < num_elements; i++) {
241                         if (!(srci = sr_config_info_get(opts[i])))
242                                 continue;
243                         printf("    %s\n", srci->id);
244                 }
245                 g_variant_unref(gvar_opts);
246         }
247
248         /* Selected channels and channel group may affect which options are
249          * returned, or which values for them. */
250         select_channels(sdi);
251         channel_group = select_channel_group(sdi);
252
253         if ((sr_config_list(sdi->driver, sdi, channel_group, SR_CONF_DEVICE_OPTIONS,
254                         &gvar_opts)) != SR_OK)
255                 /* Driver supports no device instance options. */
256                 return;
257
258         if (sdi->channel_groups) {
259                 printf("Channel groups:\n");
260                 for (cgl = sdi->channel_groups; cgl; cgl = cgl->next) {
261                         cg = cgl->data;
262                         printf("    %s: channel%s", cg->name,
263                                         g_slist_length(cg->channels) > 1 ? "s" : "");
264                         for (chl = cg->channels; chl; chl = chl->next) {
265                                 ch = chl->data;
266                                 printf(" %s", ch->name);
267                         }
268                         printf("\n");
269                 }
270         }
271
272         printf("Supported configuration options");
273         if (sdi->channel_groups) {
274                 if (!channel_group)
275                         printf(" across all channel groups");
276                 else
277                         printf(" on channel group %s", channel_group->name);
278         }
279         printf(":\n");
280         opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(int32_t));
281         for (o = 0; o < num_opts; o++) {
282                 if (!(srci = sr_config_info_get(opts[o])))
283                         continue;
284
285                 if (srci->key == SR_CONF_TRIGGER_MATCH) {
286                         if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
287                                         &gvar_list) != SR_OK) {
288                                 printf("\n");
289                                 continue;
290                         }
291                         int32 = g_variant_get_fixed_array(gvar_list,
292                                         &num_elements, sizeof(int32_t));
293                         printf("    Supported triggers: ");
294                         for (i = 0; i < num_elements; i++) {
295                                 switch(int32[i]) {
296                                 case SR_TRIGGER_ZERO:
297                                         c = '0';
298                                         break;
299                                 case SR_TRIGGER_ONE:
300                                         c = '1';
301                                         break;
302                                 case SR_TRIGGER_RISING:
303                                         c = 'r';
304                                         break;
305                                 case SR_TRIGGER_FALLING:
306                                         c = 'f';
307                                         break;
308                                 case SR_TRIGGER_EDGE:
309                                         c = 'e';
310                                         break;
311                                 case SR_TRIGGER_OVER:
312                                         c = 'o';
313                                         break;
314                                 case SR_TRIGGER_UNDER:
315                                         c = 'u';
316                                         break;
317                                 default:
318                                         c = 0;
319                                         break;
320                                 }
321                                 if (c)
322                                         printf("%c ", c);
323                         }
324                         printf("\n");
325                         g_variant_unref(gvar_list);
326
327                 } else if (srci->key == SR_CONF_LIMIT_SAMPLES) {
328                         /* If implemented in config_list(), this denotes the
329                          * maximum number of samples a device can send. This
330                          * really applies only to logic analyzers, and then
331                          * only to those that don't support compression, or
332                          * have it turned off by default. The values returned
333                          * are the low/high limits. */
334                         if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
335                                         &gvar) != SR_OK) {
336                                 continue;
337                         }
338                         g_variant_get(gvar, "(tt)", &low, &high);
339                         g_variant_unref(gvar);
340                         printf("    Maximum number of samples: %"PRIu64"\n", high);
341
342                 } else if (srci->key == SR_CONF_SAMPLERATE) {
343                         /* Supported samplerates */
344                         printf("    %s", srci->id);
345                         if (sr_config_list(sdi->driver, sdi, channel_group, SR_CONF_SAMPLERATE,
346                                         &gvar_dict) != SR_OK) {
347                                 printf("\n");
348                                 continue;
349                         }
350                         if ((gvar_list = g_variant_lookup_value(gvar_dict,
351                                         "samplerates", G_VARIANT_TYPE("at")))) {
352                                 uint64 = g_variant_get_fixed_array(gvar_list,
353                                                 &num_elements, sizeof(uint64_t));
354                                 printf(" - supported samplerates:\n");
355                                 for (i = 0; i < num_elements; i++) {
356                                         if (!(s = sr_samplerate_string(uint64[i])))
357                                                 continue;
358                                         printf("      %s\n", s);
359                                         g_free(s);
360                                 }
361                                 g_variant_unref(gvar_list);
362                         } else if ((gvar_list = g_variant_lookup_value(gvar_dict,
363                                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
364                                 uint64 = g_variant_get_fixed_array(gvar_list,
365                                                 &num_elements, sizeof(uint64_t));
366                                 /* low */
367                                 if (!(s = sr_samplerate_string(uint64[0])))
368                                         continue;
369                                 printf(" (%s", s);
370                                 g_free(s);
371                                 /* high */
372                                 if (!(s = sr_samplerate_string(uint64[1])))
373                                         continue;
374                                 printf(" - %s", s);
375                                 g_free(s);
376                                 /* step */
377                                 if (!(s = sr_samplerate_string(uint64[2])))
378                                         continue;
379                                 printf(" in steps of %s)\n", s);
380                                 g_free(s);
381                                 g_variant_unref(gvar_list);
382                         }
383                         g_variant_unref(gvar_dict);
384
385                 } else if (srci->key == SR_CONF_BUFFERSIZE) {
386                         /* Supported buffer sizes */
387                         printf("    %s", srci->id);
388                         if (sr_config_list(sdi->driver, sdi, channel_group,
389                                         SR_CONF_BUFFERSIZE, &gvar_list) != SR_OK) {
390                                 printf("\n");
391                                 continue;
392                         }
393                         uint64 = g_variant_get_fixed_array(gvar_list,
394                                         &num_elements, sizeof(uint64_t));
395                         printf(" - supported buffer sizes:\n");
396                         for (i = 0; i < num_elements; i++)
397                                 printf("      %"PRIu64"\n", uint64[i]);
398                         g_variant_unref(gvar_list);
399
400                 } else if (srci->key == SR_CONF_TIMEBASE) {
401                         /* Supported time bases */
402                         printf("    %s", srci->id);
403                         if (sr_config_list(sdi->driver, sdi, channel_group,
404                                         SR_CONF_TIMEBASE, &gvar_list) != SR_OK) {
405                                 printf("\n");
406                                 continue;
407                         }
408                         printf(" - supported time bases:\n");
409                         num_elements = g_variant_n_children(gvar_list);
410                         for (i = 0; i < num_elements; i++) {
411                                 gvar = g_variant_get_child_value(gvar_list, i);
412                                 g_variant_get(gvar, "(tt)", &p, &q);
413                                 s = sr_period_string(p * q);
414                                 printf("      %s\n", s);
415                                 g_free(s);
416                         }
417                         g_variant_unref(gvar_list);
418
419                 } else if (srci->key == SR_CONF_VDIV) {
420                         /* Supported volts/div values */
421                         printf("    %s", srci->id);
422                         if (sr_config_list(sdi->driver, sdi, channel_group,
423                                         SR_CONF_VDIV, &gvar_list) != SR_OK) {
424                                 printf("\n");
425                                 continue;
426                         }
427                         printf(" - supported volts/div:\n");
428                         num_elements = g_variant_n_children(gvar_list);
429                         for (i = 0; i < num_elements; i++) {
430                                 gvar = g_variant_get_child_value(gvar_list, i);
431                                 g_variant_get(gvar, "(tt)", &p, &q);
432                                 s = sr_voltage_string(p, q);
433                                 printf("      %s\n", s);
434                                 g_free(s);
435                         }
436                         g_variant_unref(gvar_list);
437
438                 } else if (srci->datatype == SR_T_STRING) {
439                         printf("    %s: ", srci->id);
440                         if (sr_config_get(sdi->driver, sdi, channel_group, srci->key,
441                                         &gvar) == SR_OK) {
442                                 tmp_str = g_strdup(g_variant_get_string(gvar, NULL));
443                                 g_variant_unref(gvar);
444                         } else
445                                 tmp_str = NULL;
446
447                         if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
448                                         &gvar) != SR_OK) {
449                                 printf("\n");
450                                 continue;
451                         }
452
453                         stropts = g_variant_get_strv(gvar, &num_elements);
454                         for (i = 0; i < num_elements; i++) {
455                                 if (i)
456                                         printf(", ");
457                                 printf("%s", stropts[i]);
458                                 if (tmp_str && !strcmp(tmp_str, stropts[i]))
459                                         printf(" (current)");
460                         }
461                         printf("\n");
462                         g_free(stropts);
463                         g_free(tmp_str);
464                         g_variant_unref(gvar);
465
466                 } else if (srci->datatype == SR_T_UINT64_RANGE) {
467                         printf("    %s: ", srci->id);
468                         if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
469                                         &gvar_list) != SR_OK) {
470                                 printf("\n");
471                                 continue;
472                         }
473
474                         if (sr_config_get(sdi->driver, sdi, NULL, srci->key, &gvar) == SR_OK) {
475                                 g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
476                                 g_variant_unref(gvar);
477                         } else {
478                                 cur_low = 0;
479                                 cur_high = 0;
480                         }
481
482                         num_elements = g_variant_n_children(gvar_list);
483                         for (i = 0; i < num_elements; i++) {
484                                 gvar = g_variant_get_child_value(gvar_list, i);
485                                 g_variant_get(gvar, "(tt)", &low, &high);
486                                 g_variant_unref(gvar);
487                                 if (i)
488                                         printf(", ");
489                                 printf("%"PRIu64"-%"PRIu64, low, high);
490                                 if (low == cur_low && high == cur_high)
491                                         printf(" (current)");
492                         }
493                         printf("\n");
494                         g_variant_unref(gvar_list);
495
496                 } else if (srci->datatype == SR_T_BOOL) {
497                         printf("    %s: ", srci->id);
498                         if (sr_config_get(sdi->driver, sdi, NULL, srci->key,
499                                         &gvar) == SR_OK) {
500                                 if (g_variant_get_boolean(gvar))
501                                         printf("on (current), off\n");
502                                 else
503                                         printf("on, off (current)\n");
504                                 g_variant_unref(gvar);
505                         } else
506                                 printf("on, off\n");
507
508                 } else if (srci->datatype == SR_T_DOUBLE_RANGE) {
509                         printf("    %s: ", srci->id);
510                         if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
511                                         &gvar_list) != SR_OK) {
512                                 printf("\n");
513                                 continue;
514                         }
515
516                         if (sr_config_get(sdi->driver, sdi, NULL, srci->key, &gvar) == SR_OK) {
517                                 g_variant_get(gvar, "(dd)", &dcur_low, &dcur_high);
518                                 g_variant_unref(gvar);
519                         } else {
520                                 dcur_low = 0;
521                                 dcur_high = 0;
522                         }
523
524                         num_elements = g_variant_n_children(gvar_list);
525                         for (i = 0; i < num_elements; i++) {
526                                 gvar = g_variant_get_child_value(gvar_list, i);
527                                 g_variant_get(gvar, "(dd)", &dlow, &dhigh);
528                                 g_variant_unref(gvar);
529                                 if (i)
530                                         printf(", ");
531                                 printf("%.1f-%.1f", dlow, dhigh);
532                                 if (dlow == dcur_low && dhigh == dcur_high)
533                                         printf(" (current)");
534                         }
535                         printf("\n");
536                         g_variant_unref(gvar_list);
537
538                 } else {
539
540                         /* Everything else */
541                         printf("    %s\n", srci->id);
542                 }
543         }
544         g_variant_unref(gvar_opts);
545
546         sr_dev_close(sdi);
547
548 }
549
550 #ifdef HAVE_SRD
551 void show_pd_detail(void)
552 {
553         struct srd_decoder *dec;
554         struct srd_decoder_option *o;
555         struct srd_channel *pdch;
556         struct srd_decoder_annotation_row *r;
557         GSList *l, *ll, *ol;
558         int idx;
559         char **pdtokens, **pdtok, *optsep, **ann, *val, *doc;
560
561         pdtokens = g_strsplit(opt_pds, ",", -1);
562         for (pdtok = pdtokens; *pdtok; pdtok++) {
563                 /* Strip options. */
564                 if ((optsep = strchr(*pdtok, ':')))
565                         *optsep = '\0';
566                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
567                         g_critical("Protocol decoder %s not found.", *pdtok);
568                         return;
569                 }
570                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
571                                 dec->id, dec->name, dec->longname, dec->desc);
572                 printf("License: %s\n", dec->license);
573                 printf("Annotation classes:\n");
574                 if (dec->annotations) {
575                         for (l = dec->annotations; l; l = l->next) {
576                                 ann = l->data;
577                                 printf("- %s: %s\n", ann[0], ann[1]);
578                         }
579                 } else {
580                         printf("None.\n");
581                 }
582                 printf("Annotation rows:\n");
583                 if (dec->annotation_rows) {
584                         for (l = dec->annotation_rows; l; l = l->next) {
585                                 r = l->data;
586                                 printf("- %s (%s): ", r->id, r->desc);
587                                 for (ll = r->ann_classes; ll; ll = ll->next) {
588                                         idx = GPOINTER_TO_INT(ll->data);
589                                         ann = g_slist_nth_data(dec->annotations, idx);
590                                         printf("%s", ann[0]);
591                                         if (ll->next)
592                                                 printf(", ");
593                                 }
594                                 printf("\n");
595                         }
596                 } else {
597                         printf("None.\n");
598                 }
599                 printf("Required channels:\n");
600                 if (dec->channels) {
601                         for (l = dec->channels; l; l = l->next) {
602                                 pdch = l->data;
603                                 printf("- %s (%s): %s\n",
604                                        pdch->id, pdch->name, pdch->desc);
605                         }
606                 } else {
607                         printf("None.\n");
608                 }
609                 printf("Optional channels:\n");
610                 if (dec->opt_channels) {
611                         for (l = dec->opt_channels; l; l = l->next) {
612                                 pdch = l->data;
613                                 printf("- %s (%s): %s\n",
614                                        pdch->id, pdch->name, pdch->desc);
615                         }
616                 } else {
617                         printf("None.\n");
618                 }
619                 printf("Options:\n");
620                 if (dec->options) {
621                         for (l = dec->options; l; l = l->next) {
622                                 o = l->data;
623                                 printf("- %s: %s (", o->id, o->desc);
624                                 for (ol = o->values; ol; ol = ol->next) {
625                                         val = g_variant_print(ol->data, FALSE);
626                                         printf("%s, ", val);
627                                         g_free(val);
628                                 }
629                                 val = g_variant_print(o->def, FALSE);
630                                 printf("default %s)\n", val);
631                                 g_free(val);
632                         }
633                 } else {
634                         printf("None.\n");
635                 }
636                 if ((doc = srd_decoder_doc_get(dec))) {
637                         printf("Documentation:\n%s\n",
638                                doc[0] == '\n' ? doc + 1 : doc);
639                         g_free(doc);
640                 }
641         }
642
643         g_strfreev(pdtokens);
644 }
645 #endif
646
647 void show_output(void)
648 {
649         const struct sr_output_module *omod;
650         const struct sr_option *opt, **opts;
651         GSList *l;
652         char *s, **tok;
653
654         tok = g_strsplit(opt_output_format, ":", 0);
655         if (!tok[0] || !(omod = sr_output_find(tok[0])))
656                 g_critical("Output module '%s' not found.", opt_output_format);
657
658         printf("ID: %s\nName: %s\n", sr_output_id_get(omod),
659                         sr_output_name_get(omod));
660         printf("Description: %s\n", sr_output_description_get(omod));
661         if ((opts = sr_output_options_get(omod))) {
662                 printf("Options:\n");
663                 for (opt = opts[0]; opt; opt++) {
664                         printf("  %s: %s", opt->id, opt->desc);
665                         if (opt->def) {
666                                 s = g_variant_print(opt->def, FALSE);
667                                 printf(" (default %s", s);
668                                 g_free(s);
669                                 if (opt->values) {
670                                         printf(", possible values ");
671                                         for (l = opt->values; l; l = l->next) {
672                                                 s = g_variant_print((GVariant *)l->data, FALSE);
673                                                 printf("%s%s", s, l->next ? ", " : "");
674                                                 g_free(s);
675                                         }
676                                 }
677                                 printf(")");
678                         }
679                         printf("\n");
680                         opt++;
681                 }
682                 sr_output_options_free(opts);
683         }
684         g_strfreev(tok);
685 }
686