86845ff2d6183385981afae3256677c830b20197
[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         return strcmp(sr_input_id_get((struct sr_input_module *)a),
27                         sr_input_id_get((struct sr_input_module *)b));
28 }
29
30 static gint sort_outputs(gconstpointer a, gconstpointer b)
31 {
32         return strcmp(sr_output_id_get((struct sr_output_module *)a),
33                         sr_output_id_get((struct sr_output_module *)b));
34 }
35
36 static gint sort_drivers(gconstpointer a, gconstpointer b)
37 {
38         const struct sr_dev_driver *sdda = a, *sddb = b;
39
40         return strcmp(sdda->name, sddb->name);
41 }
42
43 #ifdef HAVE_SRD
44 static gint sort_pds(gconstpointer a, gconstpointer b)
45 {
46         const struct srd_decoder *sda = a, *sdb = b;
47
48         return strcmp(sda->id, sdb->id);
49 }
50 #endif
51
52 void show_version(void)
53 {
54         struct sr_dev_driver **drivers, *driver;
55         const struct sr_input_module **inputs, *input;
56         const struct sr_output_module **outputs, *output;
57         const GSList *l;
58         GSList *sl;
59         int i;
60 #ifdef HAVE_SRD
61         struct srd_decoder *dec;
62 #endif
63
64         printf("sigrok-cli %s\n\n", VERSION);
65
66         printf("Using libsigrok %s (lib version %s).\n",
67                sr_package_version_string_get(), sr_lib_version_string_get());
68 #ifdef HAVE_SRD
69         printf("Using libsigrokdecode %s (lib version %s).\n\n",
70                srd_package_version_string_get(), srd_lib_version_string_get());
71 #endif
72
73         printf("Supported hardware drivers:\n");
74         drivers = sr_driver_list();
75         for (sl = NULL, i = 0; drivers[i]; i++)
76                 sl = g_slist_append(sl, drivers[i]);
77         sl = g_slist_sort(sl, sort_drivers);
78         for (l = sl; l; l = l->next) {
79                 driver = l->data;
80                 printf("  %-20s %s\n", driver->name, driver->longname);
81         }
82         printf("\n");
83         g_slist_free(sl);
84
85         printf("Supported input formats:\n");
86         inputs = sr_input_list();
87         for (sl = NULL, i = 0; inputs[i]; i++)
88                 sl = g_slist_append(sl, (gpointer)inputs[i]);
89         sl = g_slist_sort(sl, sort_inputs);
90         for (l = sl; l; l = l->next) {
91                 input = l->data;
92                 printf("  %-20s %s\n", sr_input_id_get(input),
93                                 sr_input_description_get(input));
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, *channels;
142         GString *s;
143         GVariant *gvar;
144         struct sr_dev_driver *driver;
145         const char *vendor, *model, *version;
146
147         driver = sr_dev_inst_driver_get(sdi);
148         vendor = sr_dev_inst_vendor_get(sdi);
149         model = sr_dev_inst_model_get(sdi);
150         version = sr_dev_inst_version_get(sdi);
151         channels = sr_dev_inst_channels_get(sdi);
152
153         s = g_string_sized_new(128);
154         g_string_assign(s, driver->name);
155         if (sr_config_get(driver, sdi, NULL, SR_CONF_CONN, &gvar) == SR_OK) {
156                 g_string_append(s, ":conn=");
157                 g_string_append(s, g_variant_get_string(gvar, NULL));
158                 g_variant_unref(gvar);
159         }
160         g_string_append(s, " - ");
161         if (vendor && vendor[0])
162                 g_string_append_printf(s, "%s ", vendor);
163         if (model && model[0])
164                 g_string_append_printf(s, "%s ", model);
165         if (version && version[0])
166                 g_string_append_printf(s, "%s ", version);
167         if (channels) {
168                 if (g_slist_length(channels) == 1) {
169                         ch = channels->data;
170                         g_string_append_printf(s, "with 1 channel: %s", ch->name);
171                 } else {
172                         sl = g_slist_sort(g_slist_copy(channels), sort_channels);
173                         g_string_append_printf(s, "with %d channels:", g_slist_length(sl));
174                         for (l = sl; l; l = l->next) {
175                                 ch = l->data;
176                                 g_string_append_printf(s, " %s", ch->name);
177                         }
178                         g_slist_free(sl);
179                 }
180         }
181         g_string_append_printf(s, "\n");
182         printf("%s", s->str);
183         g_string_free(s, TRUE);
184
185 }
186
187 void show_dev_list(void)
188 {
189         struct sr_dev_inst *sdi;
190         GSList *devices, *l;
191
192         if (!(devices = device_scan()))
193                 return;
194
195         printf("The following devices were found:\n");
196         for (l = devices; l; l = l->next) {
197                 sdi = l->data;
198                 print_dev_line(sdi);
199         }
200         g_slist_free(devices);
201
202 }
203
204 void show_drv_detail(struct sr_dev_driver *driver)
205 {
206         const struct sr_config_info *srci;
207         GVariant *gvar_opts;
208         const uint32_t *opts;
209         gsize num_elements, i;
210
211         if ((sr_config_list(driver, NULL, NULL, SR_CONF_DEVICE_OPTIONS,
212                         &gvar_opts) == SR_OK)) {
213                 opts = g_variant_get_fixed_array(gvar_opts, &num_elements,
214                                 sizeof(uint32_t));
215                 if (num_elements) {
216                         printf("Driver functions:\n");
217                         for (i = 0; i < num_elements; i++) {
218                                 if (!(srci = sr_config_info_get(opts[i] & SR_CONF_MASK)))
219                                         continue;
220                                 printf("    %s\n", srci->name);
221                         }
222                 }
223                 g_variant_unref(gvar_opts);
224         }
225
226         if ((sr_config_list(driver, NULL, NULL, SR_CONF_SCAN_OPTIONS,
227                         &gvar_opts) == SR_OK)) {
228                 opts = g_variant_get_fixed_array(gvar_opts, &num_elements,
229                                 sizeof(uint32_t));
230                 if (num_elements) {
231                         printf("Scan options:\n");
232                         for (i = 0; i < num_elements; i++) {
233                                 if (!(srci = sr_config_info_get(opts[i] & SR_CONF_MASK)))
234                                         continue;
235                                 printf("    %s\n", srci->id);
236                         }
237                 }
238                 g_variant_unref(gvar_opts);
239         }
240 }
241
242 void show_dev_detail(void)
243 {
244         struct sr_dev_driver *driver_from_opt, *driver;
245         struct sr_dev_inst *sdi;
246         const struct sr_config_info *srci;
247         struct sr_channel *ch;
248         struct sr_channel_group *channel_group, *cg;
249         GSList *devices, *cgl, *chl, *channel_groups;
250         GVariant *gvar_opts, *gvar_dict, *gvar_list, *gvar;
251         gsize num_opts, num_elements;
252         double dlow, dhigh, dcur_low, dcur_high;
253         const uint64_t *uint64, p, q, low, high;
254         uint64_t tmp_uint64, cur_low, cur_high, cur_p, cur_q;
255         const uint32_t *opts;
256         const int32_t *int32;
257         uint32_t key, o;
258         unsigned int num_devices, i;
259         char *tmp_str, *s, c;
260         const char **stropts;
261
262         if (parse_driver(opt_drv, &driver_from_opt, NULL)) {
263                 /* A driver was specified, report driver-wide options now. */
264                 show_drv_detail(driver_from_opt);
265         }
266
267         if (!(devices = device_scan())) {
268                 g_critical("No devices found.");
269                 return;
270         }
271
272         num_devices = g_slist_length(devices);
273         if (num_devices > 1) {
274                 g_critical("%d devices found. Use --scan to show them, "
275                                 "and select one to show.", num_devices);
276                 return;
277         }
278
279         sdi = devices->data;
280         g_slist_free(devices);
281         print_dev_line(sdi);
282
283         driver = sr_dev_inst_driver_get(sdi);
284         channel_groups = sr_dev_inst_channel_groups_get(sdi);
285
286         if (sr_dev_open(sdi) != SR_OK) {
287                 g_critical("Failed to open device.");
288                 return;
289         }
290
291         /* Selected channels and channel group may affect which options are
292          * returned, or which values for them. */
293         select_channels(sdi);
294         channel_group = select_channel_group(sdi);
295
296         if ((sr_config_list(driver, sdi, channel_group, SR_CONF_DEVICE_OPTIONS,
297                         &gvar_opts)) != SR_OK)
298                 /* Driver supports no device instance options. */
299                 return;
300
301         if (channel_groups) {
302                 printf("Channel groups:\n");
303                 for (cgl = channel_groups; cgl; cgl = cgl->next) {
304                         cg = cgl->data;
305                         printf("    %s: channel%s", cg->name,
306                                         g_slist_length(cg->channels) > 1 ? "s" : "");
307                         for (chl = cg->channels; chl; chl = chl->next) {
308                                 ch = chl->data;
309                                 printf(" %s", ch->name);
310                         }
311                         printf("\n");
312                 }
313         }
314
315         printf("Supported configuration options");
316         if (channel_groups) {
317                 if (!channel_group)
318                         printf(" across all channel groups");
319                 else
320                         printf(" on channel group %s", channel_group->name);
321         }
322         printf(":\n");
323         opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(uint32_t));
324         for (o = 0; o < num_opts; o++) {
325                 key = opts[o] & SR_CONF_MASK;
326                 if (!(srci = sr_config_info_get(key)))
327                         continue;
328
329                 if (key == SR_CONF_TRIGGER_MATCH) {
330                         if (sr_config_list(driver, sdi, channel_group, key,
331                                         &gvar_list) != SR_OK) {
332                                 printf("\n");
333                                 continue;
334                         }
335                         int32 = g_variant_get_fixed_array(gvar_list,
336                                         &num_elements, sizeof(int32_t));
337                         printf("    Supported triggers: ");
338                         for (i = 0; i < num_elements; i++) {
339                                 switch(int32[i]) {
340                                 case SR_TRIGGER_ZERO:
341                                         c = '0';
342                                         break;
343                                 case SR_TRIGGER_ONE:
344                                         c = '1';
345                                         break;
346                                 case SR_TRIGGER_RISING:
347                                         c = 'r';
348                                         break;
349                                 case SR_TRIGGER_FALLING:
350                                         c = 'f';
351                                         break;
352                                 case SR_TRIGGER_EDGE:
353                                         c = 'e';
354                                         break;
355                                 case SR_TRIGGER_OVER:
356                                         c = 'o';
357                                         break;
358                                 case SR_TRIGGER_UNDER:
359                                         c = 'u';
360                                         break;
361                                 default:
362                                         c = 0;
363                                         break;
364                                 }
365                                 if (c)
366                                         printf("%c ", c);
367                         }
368                         printf("\n");
369                         g_variant_unref(gvar_list);
370
371                 } else if (key == SR_CONF_LIMIT_SAMPLES) {
372                         /* If implemented in config_list(), this denotes the
373                          * maximum number of samples a device can send. This
374                          * really applies only to logic analyzers, and then
375                          * only to those that don't support compression, or
376                          * have it turned off by default. The values returned
377                          * are the low/high limits. */
378                         if (sr_config_list(driver, sdi, channel_group, key,
379                                         &gvar) != SR_OK) {
380                                 continue;
381                         }
382                         g_variant_get(gvar, "(tt)", &low, &high);
383                         g_variant_unref(gvar);
384                         printf("    Maximum number of samples: %"PRIu64"\n", high);
385
386                 } else if (key == SR_CONF_SAMPLERATE) {
387                         /* Supported samplerates */
388                         printf("    %s", srci->id);
389                         if (sr_config_list(driver, sdi, channel_group, SR_CONF_SAMPLERATE,
390                                         &gvar_dict) != SR_OK) {
391                                 printf("\n");
392                                 continue;
393                         }
394                         if ((gvar_list = g_variant_lookup_value(gvar_dict,
395                                         "samplerates", G_VARIANT_TYPE("at")))) {
396                                 uint64 = g_variant_get_fixed_array(gvar_list,
397                                                 &num_elements, sizeof(uint64_t));
398                                 printf(" - supported samplerates:\n");
399                                 for (i = 0; i < num_elements; i++) {
400                                         if (!(s = sr_samplerate_string(uint64[i])))
401                                                 continue;
402                                         printf("      %s\n", s);
403                                         g_free(s);
404                                 }
405                                 g_variant_unref(gvar_list);
406                         } else if ((gvar_list = g_variant_lookup_value(gvar_dict,
407                                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
408                                 uint64 = g_variant_get_fixed_array(gvar_list,
409                                                 &num_elements, sizeof(uint64_t));
410                                 /* low */
411                                 if (!(s = sr_samplerate_string(uint64[0])))
412                                         continue;
413                                 printf(" (%s", s);
414                                 g_free(s);
415                                 /* high */
416                                 if (!(s = sr_samplerate_string(uint64[1])))
417                                         continue;
418                                 printf(" - %s", s);
419                                 g_free(s);
420                                 /* step */
421                                 if (!(s = sr_samplerate_string(uint64[2])))
422                                         continue;
423                                 printf(" in steps of %s)\n", s);
424                                 g_free(s);
425                                 g_variant_unref(gvar_list);
426                         }
427                         g_variant_unref(gvar_dict);
428
429                 } else if (srci->datatype == SR_T_UINT64) {
430                         printf("    %s", srci->id);
431                         gvar = NULL;
432                         if (sr_config_get(driver, sdi, channel_group, key,
433                                         &gvar) == SR_OK) {
434                                 tmp_uint64 = g_variant_get_uint64(gvar);
435                                 g_variant_unref(gvar);
436                         } else
437                                 tmp_uint64 = 0;
438                         if (sr_config_list(driver, sdi, channel_group,
439                                         SR_CONF_BUFFERSIZE, &gvar_list) != SR_OK) {
440                                 if (gvar) {
441                                         /* Can't list it, but we have a value to show. */
442                                         printf("%"PRIu64" (current)", tmp_uint64);
443                                 }
444                                 printf("\n");
445                                 continue;
446                         }
447                         uint64 = g_variant_get_fixed_array(gvar_list,
448                                         &num_elements, sizeof(uint64_t));
449                         printf(" - supported values:\n");
450                         for (i = 0; i < num_elements; i++) {
451                                 printf("      %"PRIu64, uint64[i]);
452                                 if (gvar && tmp_uint64 == uint64[i])
453                                         printf(" (current)");
454                                 printf("\n");
455                         }
456                         g_variant_unref(gvar_list);
457
458                 } else if (srci->datatype == SR_T_STRING) {
459                         printf("    %s: ", srci->id);
460                         if (sr_config_get(driver, sdi, channel_group, key,
461                                         &gvar) == SR_OK) {
462                                 tmp_str = g_strdup(g_variant_get_string(gvar, NULL));
463                                 g_variant_unref(gvar);
464                         } else
465                                 tmp_str = NULL;
466
467                         if (sr_config_list(driver, sdi, channel_group, key,
468                                         &gvar) != SR_OK) {
469                                 if (tmp_str) {
470                                         /* Can't list it, but we have a value to show. */
471                                         printf("%s (current)", tmp_str);
472                                 }
473                                 printf("\n");
474                                 g_free(tmp_str);
475                                 continue;
476                         }
477
478                         stropts = g_variant_get_strv(gvar, &num_elements);
479                         for (i = 0; i < num_elements; i++) {
480                                 if (i)
481                                         printf(", ");
482                                 printf("%s", stropts[i]);
483                                 if (tmp_str && !strcmp(tmp_str, stropts[i]))
484                                         printf(" (current)");
485                         }
486                         printf("\n");
487                         g_free(stropts);
488                         g_free(tmp_str);
489                         g_variant_unref(gvar);
490
491                 } else if (srci->datatype == SR_T_UINT64_RANGE) {
492                         printf("    %s: ", srci->id);
493                         if (sr_config_list(driver, sdi, channel_group, key,
494                                         &gvar_list) != SR_OK) {
495                                 printf("\n");
496                                 continue;
497                         }
498
499                         if (sr_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) {
500                                 g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
501                                 g_variant_unref(gvar);
502                         } else {
503                                 cur_low = 0;
504                                 cur_high = 0;
505                         }
506
507                         num_elements = g_variant_n_children(gvar_list);
508                         for (i = 0; i < num_elements; i++) {
509                                 gvar = g_variant_get_child_value(gvar_list, i);
510                                 g_variant_get(gvar, "(tt)", &low, &high);
511                                 g_variant_unref(gvar);
512                                 if (i)
513                                         printf(", ");
514                                 printf("%"PRIu64"-%"PRIu64, low, high);
515                                 if (low == cur_low && high == cur_high)
516                                         printf(" (current)");
517                         }
518                         printf("\n");
519                         g_variant_unref(gvar_list);
520
521                 } else if (srci->datatype == SR_T_BOOL) {
522                         printf("    %s: ", srci->id);
523                         if (sr_config_get(driver, sdi, channel_group, key,
524                                         &gvar) == SR_OK) {
525                                 if (g_variant_get_boolean(gvar))
526                                         printf("on (current), off\n");
527                                 else
528                                         printf("on, off (current)\n");
529                                 g_variant_unref(gvar);
530                         } else
531                                 printf("on, off\n");
532
533                 } else if (srci->datatype == SR_T_DOUBLE_RANGE) {
534                         printf("    %s: ", srci->id);
535                         if (sr_config_list(driver, sdi, channel_group, key,
536                                         &gvar_list) != SR_OK) {
537                                 printf("\n");
538                                 continue;
539                         }
540
541                         if (sr_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) {
542                                 g_variant_get(gvar, "(dd)", &dcur_low, &dcur_high);
543                                 g_variant_unref(gvar);
544                         } else {
545                                 dcur_low = 0;
546                                 dcur_high = 0;
547                         }
548
549                         num_elements = g_variant_n_children(gvar_list);
550                         for (i = 0; i < num_elements; i++) {
551                                 gvar = g_variant_get_child_value(gvar_list, i);
552                                 g_variant_get(gvar, "(dd)", &dlow, &dhigh);
553                                 g_variant_unref(gvar);
554                                 if (i)
555                                         printf(", ");
556                                 printf("%.1f-%.1f", dlow, dhigh);
557                                 if (dlow == dcur_low && dhigh == dcur_high)
558                                         printf(" (current)");
559                         }
560                         printf("\n");
561                         g_variant_unref(gvar_list);
562
563                 } else if (srci->datatype == SR_T_FLOAT) {
564                         printf("    %s: ", srci->id);
565                         if (sr_config_get(driver, sdi, channel_group, key,
566                                         &gvar) == SR_OK) {
567                                 printf("%f\n", g_variant_get_double(gvar));
568                                 g_variant_unref(gvar);
569                         } else
570                                 printf("\n");
571
572                 } else if (srci->datatype == SR_T_RATIONAL_PERIOD
573                                 || srci->datatype == SR_T_RATIONAL_VOLT) {
574                         printf("    %s", srci->id);
575                         if (sr_config_get(driver, sdi, channel_group, key,
576                                         &gvar) == SR_OK) {
577                                 g_variant_get(gvar, "(tt)", &cur_p, &cur_q);
578                                 g_variant_unref(gvar);
579                         } else
580                                 cur_p = cur_q = 0;
581
582                         if (sr_config_list(driver, sdi, channel_group,
583                                         key, &gvar_list) != SR_OK) {
584                                 printf("\n");
585                                 continue;
586                         }
587                         printf(" - supported values:\n");
588                         num_elements = g_variant_n_children(gvar_list);
589                         for (i = 0; i < num_elements; i++) {
590                                 gvar = g_variant_get_child_value(gvar_list, i);
591                                 g_variant_get(gvar, "(tt)", &p, &q);
592                                 if (srci->datatype == SR_T_RATIONAL_PERIOD)
593                                         s = sr_period_string(p * q);
594                                 else
595                                         s = sr_voltage_string(p, q);
596                                 printf("      %s", s);
597                                 g_free(s);
598                                 if (p == cur_p && q == cur_q)
599                                         printf(" (current)");
600                                 printf("\n");
601                         }
602                         g_variant_unref(gvar_list);
603
604                 } else {
605
606                         /* Everything else */
607                         printf("    %s\n", srci->id);
608                 }
609         }
610         g_variant_unref(gvar_opts);
611
612         sr_dev_close(sdi);
613
614 }
615
616 #ifdef HAVE_SRD
617 void show_pd_detail(void)
618 {
619         struct srd_decoder *dec;
620         struct srd_decoder_option *o;
621         struct srd_channel *pdch;
622         struct srd_decoder_annotation_row *r;
623         GSList *l, *ll, *ol;
624         int idx;
625         char **pdtokens, **pdtok, *optsep, **ann, *val, *doc;
626
627         pdtokens = g_strsplit(opt_pds, ",", -1);
628         for (pdtok = pdtokens; *pdtok; pdtok++) {
629                 /* Strip options. */
630                 if ((optsep = strchr(*pdtok, ':')))
631                         *optsep = '\0';
632                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
633                         g_critical("Protocol decoder %s not found.", *pdtok);
634                         return;
635                 }
636                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
637                                 dec->id, dec->name, dec->longname, dec->desc);
638                 printf("License: %s\n", dec->license);
639                 printf("Annotation classes:\n");
640                 if (dec->annotations) {
641                         for (l = dec->annotations; l; l = l->next) {
642                                 ann = l->data;
643                                 printf("- %s: %s\n", ann[0], ann[1]);
644                         }
645                 } else {
646                         printf("None.\n");
647                 }
648                 printf("Annotation rows:\n");
649                 if (dec->annotation_rows) {
650                         for (l = dec->annotation_rows; l; l = l->next) {
651                                 r = l->data;
652                                 printf("- %s (%s): ", r->id, r->desc);
653                                 for (ll = r->ann_classes; ll; ll = ll->next) {
654                                         idx = GPOINTER_TO_INT(ll->data);
655                                         ann = g_slist_nth_data(dec->annotations, idx);
656                                         printf("%s", ann[0]);
657                                         if (ll->next)
658                                                 printf(", ");
659                                 }
660                                 printf("\n");
661                         }
662                 } else {
663                         printf("None.\n");
664                 }
665                 printf("Required channels:\n");
666                 if (dec->channels) {
667                         for (l = dec->channels; l; l = l->next) {
668                                 pdch = l->data;
669                                 printf("- %s (%s): %s\n",
670                                        pdch->id, pdch->name, pdch->desc);
671                         }
672                 } else {
673                         printf("None.\n");
674                 }
675                 printf("Optional channels:\n");
676                 if (dec->opt_channels) {
677                         for (l = dec->opt_channels; l; l = l->next) {
678                                 pdch = l->data;
679                                 printf("- %s (%s): %s\n",
680                                        pdch->id, pdch->name, pdch->desc);
681                         }
682                 } else {
683                         printf("None.\n");
684                 }
685                 printf("Options:\n");
686                 if (dec->options) {
687                         for (l = dec->options; l; l = l->next) {
688                                 o = l->data;
689                                 printf("- %s: %s (", o->id, o->desc);
690                                 for (ol = o->values; ol; ol = ol->next) {
691                                         val = g_variant_print(ol->data, FALSE);
692                                         printf("%s, ", val);
693                                         g_free(val);
694                                 }
695                                 val = g_variant_print(o->def, FALSE);
696                                 printf("default %s)\n", val);
697                                 g_free(val);
698                         }
699                 } else {
700                         printf("None.\n");
701                 }
702                 if ((doc = srd_decoder_doc_get(dec))) {
703                         printf("Documentation:\n%s\n",
704                                doc[0] == '\n' ? doc + 1 : doc);
705                         g_free(doc);
706                 }
707         }
708
709         g_strfreev(pdtokens);
710 }
711 #endif
712
713 void show_input(void)
714 {
715         const struct sr_input_module *imod;
716         const struct sr_option **opts;
717         GSList *l;
718         int i;
719         char *s, **tok;
720
721         tok = g_strsplit(opt_input_format, ":", 0);
722         if (!tok[0] || !(imod = sr_input_find(tok[0])))
723                 g_critical("Input module '%s' not found.", opt_input_format);
724
725         printf("ID: %s\nName: %s\n", sr_input_id_get(imod),
726                         sr_input_name_get(imod));
727         printf("Description: %s\n", sr_input_description_get(imod));
728         if ((opts = sr_input_options_get(imod))) {
729                 printf("Options:\n");
730                 for (i = 0; opts[i]; i++) {
731                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
732                         if (opts[i]->def) {
733                                 s = g_variant_print(opts[i]->def, FALSE);
734                                 printf(" (default %s", s);
735                                 g_free(s);
736                                 if (opts[i]->values) {
737                                         printf(", possible values ");
738                                         for (l = opts[i]->values; l; l = l->next) {
739                                                 s = g_variant_print((GVariant *)l->data, FALSE);
740                                                 printf("%s%s", s, l->next ? ", " : "");
741                                                 g_free(s);
742                                         }
743                                 }
744                                 printf(")");
745                         }
746                         printf("\n");
747                 }
748                 sr_input_options_free(opts);
749         }
750         g_strfreev(tok);
751 }
752
753 void show_output(void)
754 {
755         const struct sr_output_module *omod;
756         const struct sr_option **opts;
757         GSList *l;
758         int i;
759         char *s, **tok;
760
761         tok = g_strsplit(opt_output_format, ":", 0);
762         if (!tok[0] || !(omod = sr_output_find(tok[0])))
763                 g_critical("Output module '%s' not found.", opt_output_format);
764
765         printf("ID: %s\nName: %s\n", sr_output_id_get(omod),
766                         sr_output_name_get(omod));
767         printf("Description: %s\n", sr_output_description_get(omod));
768         if ((opts = sr_output_options_get(omod))) {
769                 printf("Options:\n");
770                 for (i = 0; opts[i]; i++) {
771                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
772                         if (opts[i]->def) {
773                                 s = g_variant_print(opts[i]->def, FALSE);
774                                 printf(" (default %s", s);
775                                 g_free(s);
776                                 if (opts[i]->values) {
777                                         printf(", possible values ");
778                                         for (l = opts[i]->values; l; l = l->next) {
779                                                 s = g_variant_print((GVariant *)l->data, FALSE);
780                                                 printf("%s%s", s, l->next ? ", " : "");
781                                                 g_free(s);
782                                         }
783                                 }
784                                 printf(")");
785                         }
786                         printf("\n");
787                 }
788                 sr_output_options_free(opts);
789         }
790         g_strfreev(tok);
791 }
792