README: Drop trailing whitespace.
[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 <config.h>
21 #include <glib.h>
22 #include <string.h>
23 #include "sigrok-cli.h"
24
25 static gint sort_inputs(gconstpointer a, gconstpointer b)
26 {
27         return strcmp(sr_input_id_get((struct sr_input_module *)a),
28                         sr_input_id_get((struct sr_input_module *)b));
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_transforms(gconstpointer a, gconstpointer b)
38 {
39         return strcmp(sr_transform_id_get((struct sr_transform_module *)a),
40                         sr_transform_id_get((struct sr_transform_module *)b));
41 }
42
43 static gint sort_drivers(gconstpointer a, gconstpointer b)
44 {
45         const struct sr_dev_driver *sdda = a, *sddb = b;
46
47         return strcmp(sdda->name, sddb->name);
48 }
49
50 #ifdef HAVE_SRD
51 static gint sort_pds(gconstpointer a, gconstpointer b)
52 {
53         const struct srd_decoder *sda = a, *sdb = b;
54
55         return strcmp(sda->id, sdb->id);
56 }
57 #endif
58
59 void show_version(void)
60 {
61         GString *s;
62         GSList *l, *l_orig, *m;
63         char *str;
64         const char *lib, *version;
65
66         printf("sigrok-cli %s\n\n", SC_PACKAGE_VERSION_STRING);
67
68         printf("Libraries and features:\n");
69
70         printf("- libsigrok %s/%s (rt: %s/%s).\n",
71                 SR_PACKAGE_VERSION_STRING, SR_LIB_VERSION_STRING,
72                 sr_package_version_string_get(), sr_lib_version_string_get());
73
74         s = g_string_sized_new(200);
75         g_string_append(s, " - Libs:\n");
76         l_orig = sr_buildinfo_libs_get();
77         for (l = l_orig; l; l = l->next) {
78                 m = l->data;
79                 lib = m->data;
80                 version = m->next->data;
81                 g_string_append_printf(s, "  - %s %s\n", lib, version);
82                 g_slist_free_full(m, g_free);
83         }
84         g_slist_free(l_orig);
85         s->str[s->len - 1] = '\0';
86         printf("%s\n", s->str);
87         g_string_free(s, TRUE);
88
89         str = sr_buildinfo_host_get();
90         printf("  - Host: %s.\n", str);
91         g_free(str);
92
93         str = sr_buildinfo_scpi_backends_get();
94         printf("  - SCPI backends: %s.\n", str);
95         g_free(str);
96
97 #ifdef HAVE_SRD
98         printf("- libsigrokdecode %s/%s (rt: %s/%s).\n",
99                 SRD_PACKAGE_VERSION_STRING, SRD_LIB_VERSION_STRING,
100                 srd_package_version_string_get(), srd_lib_version_string_get());
101
102         s = g_string_sized_new(200);
103         g_string_append(s, " - Libs:\n");
104         l_orig = srd_buildinfo_libs_get();
105         for (l = l_orig; l; l = l->next) {
106                 m = l->data;
107                 lib = m->data;
108                 version = m->next->data;
109                 g_string_append_printf(s, "  - %s %s\n", lib, version);
110                 g_slist_free_full(m, g_free);
111         }
112         g_slist_free(l_orig);
113         s->str[s->len - 1] = '\0';
114         printf("%s\n", s->str);
115         g_string_free(s, TRUE);
116
117         str = srd_buildinfo_host_get();
118         printf("  - Host: %s.\n", str);
119         g_free(str);
120 #endif
121 }
122
123 void show_supported(void)
124 {
125         struct sr_dev_driver **drivers, *driver;
126         const struct sr_input_module **inputs, *input;
127         const struct sr_output_module **outputs, *output;
128         const struct sr_transform_module **transforms, *transform;
129         const GSList *l;
130         GSList *sl;
131         int i;
132 #ifdef HAVE_SRD
133         struct srd_decoder *dec;
134 #endif
135
136         printf("Supported hardware drivers:\n");
137         drivers = sr_driver_list(sr_ctx);
138         for (sl = NULL, i = 0; drivers[i]; i++)
139                 sl = g_slist_append(sl, drivers[i]);
140         sl = g_slist_sort(sl, sort_drivers);
141         for (l = sl; l; l = l->next) {
142                 driver = l->data;
143                 printf("  %-20s %s\n", driver->name, driver->longname);
144         }
145         printf("\n");
146         g_slist_free(sl);
147
148         printf("Supported input formats:\n");
149         inputs = sr_input_list();
150         for (sl = NULL, i = 0; inputs[i]; i++)
151                 sl = g_slist_append(sl, (gpointer)inputs[i]);
152         sl = g_slist_sort(sl, sort_inputs);
153         for (l = sl; l; l = l->next) {
154                 input = l->data;
155                 printf("  %-20s %s\n", sr_input_id_get(input),
156                                 sr_input_description_get(input));
157         }
158         printf("\n");
159         g_slist_free(sl);
160
161         printf("Supported output formats:\n");
162         outputs = sr_output_list();
163         for (sl = NULL, i = 0; outputs[i]; i++)
164                 sl = g_slist_append(sl, (gpointer)outputs[i]);
165         sl = g_slist_sort(sl, sort_outputs);
166         for (l = sl; l; l = l->next) {
167                 output = l->data;
168                 printf("  %-20s %s\n", sr_output_id_get(output),
169                                 sr_output_description_get(output));
170         }
171         printf("\n");
172         g_slist_free(sl);
173
174         printf("Supported transform modules:\n");
175         transforms = sr_transform_list();
176         for (sl = NULL, i = 0; transforms[i]; i++)
177                 sl = g_slist_append(sl, (gpointer)transforms[i]);
178         sl = g_slist_sort(sl, sort_transforms);
179         for (l = sl; l; l = l->next) {
180                 transform = l->data;
181                 printf("  %-20s %s\n", sr_transform_id_get(transform),
182                                 sr_transform_description_get(transform));
183         }
184         printf("\n");
185         g_slist_free(sl);
186
187 #ifdef HAVE_SRD
188         if (srd_init(NULL) == SRD_OK) {
189                 printf("Supported protocol decoders:\n");
190                 srd_decoder_load_all();
191                 sl = g_slist_copy((GSList *)srd_decoder_list());
192                 sl = g_slist_sort(sl, sort_pds);
193                 for (l = sl; l; l = l->next) {
194                         dec = l->data;
195                         printf("  %-20s %s\n", dec->id, dec->longname);
196                         /* Print protocol description upon "-l 3" or higher. */
197                         if (opt_loglevel >= SR_LOG_INFO)
198                                 printf("  %-20s %s\n", "", dec->desc);
199                 }
200                 g_slist_free(sl);
201                 srd_exit();
202         }
203         printf("\n");
204 #endif
205 }
206
207 static gint sort_channels(gconstpointer a, gconstpointer b)
208 {
209         const struct sr_channel *pa = a, *pb = b;
210
211         return pa->index - pb->index;
212 }
213
214 static void print_dev_line(const struct sr_dev_inst *sdi)
215 {
216         struct sr_channel *ch;
217         GSList *sl, *l, *channels;
218         GString *s;
219         GVariant *gvar;
220         struct sr_dev_driver *driver;
221         const char *vendor, *model, *version;
222
223         driver = sr_dev_inst_driver_get(sdi);
224         vendor = sr_dev_inst_vendor_get(sdi);
225         model = sr_dev_inst_model_get(sdi);
226         version = sr_dev_inst_version_get(sdi);
227         channels = sr_dev_inst_channels_get(sdi);
228
229         s = g_string_sized_new(128);
230         g_string_assign(s, driver->name);
231         if (maybe_config_get(driver, sdi, NULL, SR_CONF_CONN, &gvar) == SR_OK) {
232                 g_string_append(s, ":conn=");
233                 g_string_append(s, g_variant_get_string(gvar, NULL));
234                 g_variant_unref(gvar);
235         }
236         g_string_append(s, " - ");
237         if (vendor && vendor[0])
238                 g_string_append_printf(s, "%s ", vendor);
239         if (model && model[0])
240                 g_string_append_printf(s, "%s ", model);
241         if (version && version[0])
242                 g_string_append_printf(s, "%s ", version);
243         if (channels) {
244                 if (g_slist_length(channels) == 1) {
245                         ch = channels->data;
246                         g_string_append_printf(s, "with 1 channel: %s", ch->name);
247                 } else {
248                         sl = g_slist_sort(g_slist_copy(channels), sort_channels);
249                         g_string_append_printf(s, "with %d channels:", g_slist_length(sl));
250                         for (l = sl; l; l = l->next) {
251                                 ch = l->data;
252                                 g_string_append_printf(s, " %s", ch->name);
253                         }
254                         g_slist_free(sl);
255                 }
256         }
257         g_string_append_printf(s, "\n");
258         printf("%s", s->str);
259         g_string_free(s, TRUE);
260
261 }
262
263 void show_dev_list(void)
264 {
265         struct sr_dev_inst *sdi;
266         GSList *devices, *l;
267
268         if (!(devices = device_scan()))
269                 return;
270
271         printf("The following devices were found:\n");
272         for (l = devices; l; l = l->next) {
273                 sdi = l->data;
274                 print_dev_line(sdi);
275         }
276         g_slist_free(devices);
277
278 }
279
280 void show_drv_detail(struct sr_dev_driver *driver)
281 {
282         const struct sr_key_info *srci;
283         GArray *opts;
284         guint i;
285
286         if ((opts = sr_dev_options(driver, NULL, NULL))) {
287                 if (opts->len > 0) {
288                         printf("Driver functions:\n");
289                         for (i = 0; i < opts->len; i++) {
290                                 if (!(srci = sr_key_info_get(SR_KEY_CONFIG,
291                                                 g_array_index(opts, uint32_t, i))))
292                                         continue;
293                                 printf("    %s\n", srci->name);
294                         }
295                 }
296                 g_array_free(opts, TRUE);
297         }
298
299         if ((opts = sr_driver_scan_options_list(driver))) {
300                 if (opts->len > 0) {
301                         printf("Scan options:\n");
302                         for (i = 0; i < opts->len; i++) {
303                                 if (!(srci = sr_key_info_get(SR_KEY_CONFIG,
304                                                 g_array_index(opts, uint32_t, i))))
305                                         continue;
306                                 printf("    %s\n", srci->id);
307                         }
308                 }
309                 g_array_free(opts, TRUE);
310         }
311 }
312
313 void show_dev_detail(void)
314 {
315         struct sr_dev_driver *driver_from_opt, *driver;
316         struct sr_dev_inst *sdi;
317         const struct sr_key_info *srci, *srmqi, *srmqfi;
318         struct sr_channel *ch;
319         struct sr_channel_group *channel_group, *cg;
320         GSList *devices, *cgl, *chl, *channel_groups;
321         GVariant *gvar_dict, *gvar_list, *gvar;
322         gsize num_elements;
323         double dlow, dhigh, dcur_low, dcur_high;
324         const uint64_t *uint64, p, q, low, high;
325         uint64_t tmp_uint64, mask, cur_low, cur_high, cur_p, cur_q;
326         GArray *opts;
327         const int32_t *int32;
328         uint32_t key, o, cur_mq, mq;
329         uint64_t cur_mqflags, mqflags;
330         unsigned int num_devices, i, j;
331         char *tmp_str, *s, c;
332         const char **stropts;
333
334         if (parse_driver(opt_drv, &driver_from_opt, NULL)) {
335                 /* A driver was specified, report driver-wide options now. */
336                 show_drv_detail(driver_from_opt);
337         }
338
339         if (!(devices = device_scan())) {
340                 g_critical("No devices found.");
341                 return;
342         }
343
344         num_devices = g_slist_length(devices);
345         if (num_devices > 1) {
346                 g_critical("%d devices found. Use --scan to show them, "
347                                 "and select one to show.", num_devices);
348                 return;
349         }
350
351         sdi = devices->data;
352         g_slist_free(devices);
353         print_dev_line(sdi);
354
355         driver = sr_dev_inst_driver_get(sdi);
356         channel_groups = sr_dev_inst_channel_groups_get(sdi);
357
358         if (sr_dev_open(sdi) != SR_OK) {
359                 g_critical("Failed to open device.");
360                 return;
361         }
362
363         /*
364          * Selected channels and channel group may affect which options are
365          * returned, or which values for them.
366          */
367         select_channels(sdi);
368         channel_group = select_channel_group(sdi);
369
370         if (!(opts = sr_dev_options(driver, sdi, channel_group)))
371                 /* Driver supports no device instance options. */
372                 return;
373
374         if (channel_groups) {
375                 printf("Channel groups:\n");
376                 for (cgl = channel_groups; cgl; cgl = cgl->next) {
377                         cg = cgl->data;
378                         printf("    %s: channel%s", cg->name,
379                                         g_slist_length(cg->channels) > 1 ? "s" : "");
380                         for (chl = cg->channels; chl; chl = chl->next) {
381                                 ch = chl->data;
382                                 printf(" %s", ch->name);
383                         }
384                         printf("\n");
385                 }
386         }
387
388         printf("Supported configuration options");
389         if (channel_groups) {
390                 if (!channel_group)
391                         printf(" across all channel groups");
392                 else
393                         printf(" on channel group %s", channel_group->name);
394         }
395         printf(":\n");
396         for (o = 0; o < opts->len; o++) {
397                 key = g_array_index(opts, uint32_t, o);
398                 if (!(srci = sr_key_info_get(SR_KEY_CONFIG, key)))
399                         continue;
400
401                 if (key == SR_CONF_TRIGGER_MATCH) {
402                         if (maybe_config_list(driver, sdi, channel_group, key,
403                                         &gvar_list) != SR_OK) {
404                                 printf("\n");
405                                 continue;
406                         }
407                         int32 = g_variant_get_fixed_array(gvar_list,
408                                         &num_elements, sizeof(int32_t));
409                         printf("    Supported triggers: ");
410                         for (i = 0; i < num_elements; i++) {
411                                 switch (int32[i]) {
412                                 case SR_TRIGGER_ZERO:
413                                         c = '0';
414                                         break;
415                                 case SR_TRIGGER_ONE:
416                                         c = '1';
417                                         break;
418                                 case SR_TRIGGER_RISING:
419                                         c = 'r';
420                                         break;
421                                 case SR_TRIGGER_FALLING:
422                                         c = 'f';
423                                         break;
424                                 case SR_TRIGGER_EDGE:
425                                         c = 'e';
426                                         break;
427                                 case SR_TRIGGER_OVER:
428                                         c = 'o';
429                                         break;
430                                 case SR_TRIGGER_UNDER:
431                                         c = 'u';
432                                         break;
433                                 default:
434                                         c = 0;
435                                         break;
436                                 }
437                                 if (c)
438                                         printf("%c ", c);
439                         }
440                         printf("\n");
441                         g_variant_unref(gvar_list);
442
443                 } else if (key == SR_CONF_LIMIT_SAMPLES
444                                 && (sr_dev_config_capabilities_list(sdi, NULL, key)
445                                         & SR_CONF_LIST)) {
446                         /*
447                          * If implemented in config_list(), this denotes the
448                          * maximum number of samples a device can send. This
449                          * really applies only to logic analyzers, and then
450                          * only to those that don't support compression, or
451                          * have it turned off by default. The values returned
452                          * are the low/high limits.
453                          */
454                         if (sr_config_list(driver, sdi, channel_group, key,
455                                         &gvar) == SR_OK) {
456                                 g_variant_get(gvar, "(tt)", &low, &high);
457                                 g_variant_unref(gvar);
458                                 printf("    Maximum number of samples: %"PRIu64"\n", high);
459                         }
460
461                 } else if (key == SR_CONF_SAMPLERATE) {
462                         /* Supported samplerates */
463                         printf("    %s", srci->id);
464                         if (maybe_config_list(driver, sdi, channel_group, SR_CONF_SAMPLERATE,
465                                         &gvar_dict) != SR_OK) {
466                                 printf("\n");
467                                 continue;
468                         }
469                         if ((gvar_list = g_variant_lookup_value(gvar_dict,
470                                         "samplerates", G_VARIANT_TYPE("at")))) {
471                                 uint64 = g_variant_get_fixed_array(gvar_list,
472                                                 &num_elements, sizeof(uint64_t));
473                                 printf(" - supported samplerates:\n");
474                                 for (i = 0; i < num_elements; i++) {
475                                         if (!(s = sr_samplerate_string(uint64[i])))
476                                                 continue;
477                                         printf("      %s\n", s);
478                                         g_free(s);
479                                 }
480                                 g_variant_unref(gvar_list);
481                         } else if ((gvar_list = g_variant_lookup_value(gvar_dict,
482                                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
483                                 uint64 = g_variant_get_fixed_array(gvar_list,
484                                                 &num_elements, sizeof(uint64_t));
485                                 /* low */
486                                 if (!(s = sr_samplerate_string(uint64[0])))
487                                         continue;
488                                 printf(" (%s", s);
489                                 g_free(s);
490                                 /* high */
491                                 if (!(s = sr_samplerate_string(uint64[1])))
492                                         continue;
493                                 printf(" - %s", s);
494                                 g_free(s);
495                                 /* step */
496                                 if (!(s = sr_samplerate_string(uint64[2])))
497                                         continue;
498                                 printf(" in steps of %s)\n", s);
499                                 g_free(s);
500                                 g_variant_unref(gvar_list);
501                         }
502                         g_variant_unref(gvar_dict);
503
504                 } else if (srci->datatype == SR_T_UINT64) {
505                         printf("    %s: ", srci->id);
506                         gvar = NULL;
507                         if (maybe_config_get(driver, sdi, channel_group, key,
508                                         &gvar) == SR_OK) {
509                                 tmp_uint64 = g_variant_get_uint64(gvar);
510                                 g_variant_unref(gvar);
511                         } else
512                                 tmp_uint64 = 0;
513                         if (maybe_config_list(driver, sdi, channel_group,
514                                         key, &gvar_list) != SR_OK) {
515                                 if (gvar) {
516                                         /* Can't list it, but we have a value to show. */
517                                         printf("%"PRIu64" (current)", tmp_uint64);
518                                 }
519                                 printf("\n");
520                                 continue;
521                         }
522                         uint64 = g_variant_get_fixed_array(gvar_list,
523                                         &num_elements, sizeof(uint64_t));
524                         printf(" - supported values:\n");
525                         for (i = 0; i < num_elements; i++) {
526                                 printf("      %"PRIu64, uint64[i]);
527                                 if (gvar && tmp_uint64 == uint64[i])
528                                         printf(" (current)");
529                                 printf("\n");
530                         }
531                         g_variant_unref(gvar_list);
532
533                 } else if (srci->datatype == SR_T_STRING) {
534                         printf("    %s: ", srci->id);
535                         if (maybe_config_get(driver, sdi, channel_group, key,
536                                         &gvar) == SR_OK) {
537                                 tmp_str = g_strdup(g_variant_get_string(gvar, NULL));
538                                 g_variant_unref(gvar);
539                         } else
540                                 tmp_str = NULL;
541
542                         if (maybe_config_list(driver, sdi, channel_group, key,
543                                         &gvar) != SR_OK) {
544                                 if (tmp_str) {
545                                         /* Can't list it, but we have a value to show. */
546                                         printf("%s (current)", tmp_str);
547                                 }
548                                 printf("\n");
549                                 g_free(tmp_str);
550                                 continue;
551                         }
552
553                         stropts = g_variant_get_strv(gvar, &num_elements);
554                         for (i = 0; i < num_elements; i++) {
555                                 if (i)
556                                         printf(", ");
557                                 printf("%s", stropts[i]);
558                                 if (tmp_str && !strcmp(tmp_str, stropts[i]))
559                                         printf(" (current)");
560                         }
561                         printf("\n");
562                         g_free(stropts);
563                         g_free(tmp_str);
564                         g_variant_unref(gvar);
565
566                 } else if (srci->datatype == SR_T_UINT64_RANGE) {
567                         printf("    %s: ", srci->id);
568                         if (maybe_config_list(driver, sdi, channel_group, key,
569                                         &gvar_list) != SR_OK) {
570                                 printf("\n");
571                                 continue;
572                         }
573
574                         if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) {
575                                 g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
576                                 g_variant_unref(gvar);
577                         } else {
578                                 cur_low = 0;
579                                 cur_high = 0;
580                         }
581
582                         num_elements = g_variant_n_children(gvar_list);
583                         for (i = 0; i < num_elements; i++) {
584                                 gvar = g_variant_get_child_value(gvar_list, i);
585                                 g_variant_get(gvar, "(tt)", &low, &high);
586                                 g_variant_unref(gvar);
587                                 if (i)
588                                         printf(", ");
589                                 printf("%"PRIu64"-%"PRIu64, low, high);
590                                 if (low == cur_low && high == cur_high)
591                                         printf(" (current)");
592                         }
593                         printf("\n");
594                         g_variant_unref(gvar_list);
595
596                 } else if (srci->datatype == SR_T_BOOL) {
597                         printf("    %s: ", srci->id);
598                         if (maybe_config_get(driver, sdi, channel_group, key,
599                                         &gvar) == SR_OK) {
600                                 if (g_variant_get_boolean(gvar))
601                                         printf("on (current), off\n");
602                                 else
603                                         printf("on, off (current)\n");
604                                 g_variant_unref(gvar);
605                         } else
606                                 printf("on, off\n");
607
608                 } else if (srci->datatype == SR_T_DOUBLE_RANGE) {
609                         printf("    %s: ", srci->id);
610                         if (maybe_config_list(driver, sdi, channel_group, key,
611                                         &gvar_list) != SR_OK) {
612                                 printf("\n");
613                                 continue;
614                         }
615
616                         if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) {
617                                 g_variant_get(gvar, "(dd)", &dcur_low, &dcur_high);
618                                 g_variant_unref(gvar);
619                         } else {
620                                 dcur_low = 0;
621                                 dcur_high = 0;
622                         }
623
624                         num_elements = g_variant_n_children(gvar_list);
625                         for (i = 0; i < num_elements; i++) {
626                                 gvar = g_variant_get_child_value(gvar_list, i);
627                                 g_variant_get(gvar, "(dd)", &dlow, &dhigh);
628                                 g_variant_unref(gvar);
629                                 if (i)
630                                         printf(", ");
631                                 printf("%.1f-%.1f", dlow, dhigh);
632                                 if (dlow == dcur_low && dhigh == dcur_high)
633                                         printf(" (current)");
634                         }
635                         printf("\n");
636                         g_variant_unref(gvar_list);
637
638                 } else if (srci->datatype == SR_T_FLOAT) {
639                         printf("    %s: ", srci->id);
640                         if (maybe_config_get(driver, sdi, channel_group, key,
641                                         &gvar) == SR_OK) {
642                                 printf("%f\n", g_variant_get_double(gvar));
643                                 g_variant_unref(gvar);
644                         } else
645                                 printf("\n");
646
647                 } else if (srci->datatype == SR_T_RATIONAL_PERIOD
648                                 || srci->datatype == SR_T_RATIONAL_VOLT) {
649                         printf("    %s", srci->id);
650                         if (maybe_config_get(driver, sdi, channel_group, key,
651                                         &gvar) == SR_OK) {
652                                 g_variant_get(gvar, "(tt)", &cur_p, &cur_q);
653                                 g_variant_unref(gvar);
654                         } else
655                                 cur_p = cur_q = 0;
656
657                         if (maybe_config_list(driver, sdi, channel_group,
658                                         key, &gvar_list) != SR_OK) {
659                                 printf("\n");
660                                 continue;
661                         }
662                         printf(" - supported values:\n");
663                         num_elements = g_variant_n_children(gvar_list);
664                         for (i = 0; i < num_elements; i++) {
665                                 gvar = g_variant_get_child_value(gvar_list, i);
666                                 g_variant_get(gvar, "(tt)", &p, &q);
667                                 if (srci->datatype == SR_T_RATIONAL_PERIOD)
668                                         s = sr_period_string(p, q);
669                                 else
670                                         s = sr_voltage_string(p, q);
671                                 printf("      %s", s);
672                                 g_free(s);
673                                 if (p == cur_p && q == cur_q)
674                                         printf(" (current)");
675                                 printf("\n");
676                         }
677                         g_variant_unref(gvar_list);
678
679                 } else if (srci->datatype == SR_T_MQ) {
680                         printf("    %s: ", srci->id);
681                         if (maybe_config_get(driver, sdi, channel_group, key,
682                                         &gvar) == SR_OK
683                                         && g_variant_is_of_type(gvar, G_VARIANT_TYPE_TUPLE)
684                                         && g_variant_n_children(gvar) == 2) {
685                                 g_variant_get(gvar, "(ut)", &cur_mq, &cur_mqflags);
686                                 g_variant_unref(gvar);
687                         } else
688                                 cur_mq = cur_mqflags = 0;
689
690                         if (maybe_config_list(driver, sdi, channel_group,
691                                         key, &gvar_list) != SR_OK) {
692                                 printf("\n");
693                                 continue;
694                         }
695                         printf(" - supported measurements:\n");
696                         num_elements = g_variant_n_children(gvar_list);
697                         for (i = 0; i < num_elements; i++) {
698                                 printf("      ");
699                                 gvar = g_variant_get_child_value(gvar_list, i);
700                                 g_variant_get(gvar, "(ut)", &mq, &mqflags);
701                                 if ((srmqi = sr_key_info_get(SR_KEY_MQ, mq)))
702                                         printf("%s", srmqi->id);
703                                 else
704                                         printf("%d", mq);
705                                 for (j = 0, mask = 1; j < 32; j++, mask <<= 1) {
706                                         if (!(mqflags & mask))
707                                                 continue;
708                                         if ((srmqfi = sr_key_info_get(SR_KEY_MQFLAGS, mqflags & mask)))
709                                                 printf("/%s", srmqfi->id);
710                                         else
711                                                 printf("/%" PRIu64, mqflags & mask);
712                                 }
713                                 if (mq == cur_mq && mqflags == cur_mqflags)
714                                         printf(" (current)");
715                                 printf("\n");
716                         }
717                         g_variant_unref(gvar_list);
718
719                 } else {
720
721                         /* Everything else */
722                         printf("    %s\n", srci->id);
723                 }
724         }
725         g_array_free(opts, TRUE);
726
727         sr_dev_close(sdi);
728
729 }
730
731 #ifdef HAVE_SRD
732 static void show_pd_detail_single(const char *pd)
733 {
734         struct srd_decoder *dec;
735         struct srd_decoder_option *o;
736         struct srd_channel *pdch;
737         struct srd_decoder_annotation_row *r;
738         GSList *l, *ll, *ol;
739         int idx;
740         char **pdtokens, **pdtok, *optsep, **ann, **bin, *val, *doc, *str;
741
742         pdtokens = g_strsplit(pd, ",", -1);
743         for (pdtok = pdtokens; *pdtok; pdtok++) {
744                 /* Strip options. */
745                 if ((optsep = strchr(*pdtok, ':')))
746                         *optsep = '\0';
747                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
748                         g_critical("Protocol decoder %s not found.", *pdtok);
749                         return;
750                 }
751                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
752                                 dec->id, dec->name, dec->longname, dec->desc);
753                 printf("License: %s\n", dec->license);
754                 printf("Possible decoder input IDs:\n");
755                 if (dec->inputs) {
756                         for (l = dec->inputs; l; l = l->next) {
757                                 str = l->data;
758                                 printf("- %s\n", str);
759                         }
760                 } else {
761                         printf("None.\n");
762                 }
763                 printf("Possible decoder output IDs:\n");
764                 if (dec->outputs) {
765                         for (l = dec->outputs; l; l = l->next) {
766                                 str = l->data;
767                                 printf("- %s\n", str);
768                         }
769                 } else {
770                         printf("None.\n");
771                 }
772                 printf("Annotation classes:\n");
773                 if (dec->annotations) {
774                         for (l = dec->annotations; l; l = l->next) {
775                                 ann = l->data;
776                                 printf("- %s: %s\n", ann[0], ann[1]);
777                         }
778                 } else {
779                         printf("None.\n");
780                 }
781                 printf("Annotation rows:\n");
782                 if (dec->annotation_rows) {
783                         for (l = dec->annotation_rows; l; l = l->next) {
784                                 r = l->data;
785                                 printf("- %s (%s): ", r->id, r->desc);
786                                 for (ll = r->ann_classes; ll; ll = ll->next) {
787                                         idx = GPOINTER_TO_INT(ll->data);
788                                         ann = g_slist_nth_data(dec->annotations, idx);
789                                         printf("%s", ann[0]);
790                                         if (ll->next)
791                                                 printf(", ");
792                                 }
793                                 printf("\n");
794                         }
795                 } else {
796                         printf("None.\n");
797                 }
798                 printf("Binary classes:\n");
799                 if (dec->binary) {
800                         for (l = dec->binary; l; l = l->next) {
801                                 bin = l->data;
802                                 printf("- %s: %s\n", bin[0], bin[1]);
803                         }
804                 } else {
805                         printf("None.\n");
806                 }
807                 printf("Required channels:\n");
808                 if (dec->channels) {
809                         for (l = dec->channels; l; l = l->next) {
810                                 pdch = l->data;
811                                 printf("- %s (%s): %s\n",
812                                        pdch->id, pdch->name, pdch->desc);
813                         }
814                 } else {
815                         printf("None.\n");
816                 }
817                 printf("Optional channels:\n");
818                 if (dec->opt_channels) {
819                         for (l = dec->opt_channels; l; l = l->next) {
820                                 pdch = l->data;
821                                 printf("- %s (%s): %s\n",
822                                        pdch->id, pdch->name, pdch->desc);
823                         }
824                 } else {
825                         printf("None.\n");
826                 }
827                 printf("Options:\n");
828                 if (dec->options) {
829                         for (l = dec->options; l; l = l->next) {
830                                 o = l->data;
831                                 printf("- %s: %s (", o->id, o->desc);
832                                 for (ol = o->values; ol; ol = ol->next) {
833                                         val = g_variant_print(ol->data, FALSE);
834                                         printf("%s, ", val);
835                                         g_free(val);
836                                 }
837                                 val = g_variant_print(o->def, FALSE);
838                                 printf("default %s)\n", val);
839                                 g_free(val);
840                         }
841                 } else {
842                         printf("None.\n");
843                 }
844                 if ((doc = srd_decoder_doc_get(dec))) {
845                         printf("Documentation:\n%s\n",
846                                doc[0] == '\n' ? doc + 1 : doc);
847                         g_free(doc);
848                 }
849         }
850
851         g_strfreev(pdtokens);
852 }
853
854 void show_pd_detail(void)
855 {
856         for (int i = 0; opt_pds[i]; i++)
857                 show_pd_detail_single(opt_pds[i]);
858 }
859 #endif
860
861 void show_input(void)
862 {
863         const struct sr_input_module *imod;
864         const struct sr_option **opts;
865         GSList *l;
866         int i;
867         char *s, **tok;
868
869         tok = g_strsplit(opt_input_format, ":", 0);
870         if (!tok[0] || !(imod = sr_input_find(tok[0])))
871                 g_critical("Input module '%s' not found.", opt_input_format);
872
873         printf("ID: %s\nName: %s\n", sr_input_id_get(imod),
874                         sr_input_name_get(imod));
875         printf("Description: %s\n", sr_input_description_get(imod));
876         if ((opts = sr_input_options_get(imod))) {
877                 printf("Options:\n");
878                 for (i = 0; opts[i]; i++) {
879                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
880                         if (opts[i]->def) {
881                                 s = g_variant_print(opts[i]->def, FALSE);
882                                 printf(" (default %s", s);
883                                 g_free(s);
884                                 if (opts[i]->values) {
885                                         printf(", possible values ");
886                                         for (l = opts[i]->values; l; l = l->next) {
887                                                 s = g_variant_print((GVariant *)l->data, FALSE);
888                                                 printf("%s%s", s, l->next ? ", " : "");
889                                                 g_free(s);
890                                         }
891                                 }
892                                 printf(")");
893                         }
894                         printf("\n");
895                 }
896                 sr_input_options_free(opts);
897         }
898         g_strfreev(tok);
899 }
900
901 void show_output(void)
902 {
903         const struct sr_output_module *omod;
904         const struct sr_option **opts;
905         GSList *l;
906         int i;
907         char *s, **tok;
908
909         tok = g_strsplit(opt_output_format, ":", 0);
910         if (!tok[0] || !(omod = sr_output_find(tok[0])))
911                 g_critical("Output module '%s' not found.", opt_output_format);
912
913         printf("ID: %s\nName: %s\n", sr_output_id_get(omod),
914                         sr_output_name_get(omod));
915         printf("Description: %s\n", sr_output_description_get(omod));
916         if ((opts = sr_output_options_get(omod))) {
917                 printf("Options:\n");
918                 for (i = 0; opts[i]; i++) {
919                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
920                         if (opts[i]->def) {
921                                 s = g_variant_print(opts[i]->def, FALSE);
922                                 printf(" (default %s", s);
923                                 g_free(s);
924                                 if (opts[i]->values) {
925                                         printf(", possible values ");
926                                         for (l = opts[i]->values; l; l = l->next) {
927                                                 s = g_variant_print((GVariant *)l->data, FALSE);
928                                                 printf("%s%s", s, l->next ? ", " : "");
929                                                 g_free(s);
930                                         }
931                                 }
932                                 printf(")");
933                         }
934                         printf("\n");
935                 }
936                 sr_output_options_free(opts);
937         }
938         g_strfreev(tok);
939 }
940
941 void show_transform(void)
942 {
943         const struct sr_transform_module *tmod;
944         const struct sr_option **opts;
945         GSList *l;
946         int i;
947         char *s, **tok;
948
949         tok = g_strsplit(opt_transform_module, ":", 0);
950         if (!tok[0] || !(tmod = sr_transform_find(tok[0])))
951                 g_critical("Transform module '%s' not found.", opt_transform_module);
952
953         printf("ID: %s\nName: %s\n", sr_transform_id_get(tmod),
954                         sr_transform_name_get(tmod));
955         printf("Description: %s\n", sr_transform_description_get(tmod));
956         if ((opts = sr_transform_options_get(tmod))) {
957                 printf("Options:\n");
958                 for (i = 0; opts[i]; i++) {
959                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
960                         if (opts[i]->def) {
961                                 s = g_variant_print(opts[i]->def, FALSE);
962                                 printf(" (default %s", s);
963                                 g_free(s);
964                                 if (opts[i]->values) {
965                                         printf(", possible values ");
966                                         for (l = opts[i]->values; l; l = l->next) {
967                                                 s = g_variant_print((GVariant *)l->data, FALSE);
968                                                 printf("%s%s", s, l->next ? ", " : "");
969                                                 g_free(s);
970                                         }
971                                 }
972                                 printf(")");
973                         }
974                         printf("\n");
975                 }
976                 sr_transform_options_free(opts);
977         }
978         g_strfreev(tok);
979 }