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;
 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                                 if (tmp_str) {
 450                                         /* Can't list it, but we have a value to show. */
 451                                         printf("%s (current)", tmp_str);
 452                                 }
 453                                 printf("\n");
 454                                 continue;
 455                         }
 456
 457                         stropts = g_variant_get_strv(gvar, &num_elements);
 458                         for (i = 0; i < num_elements; i++) {
 459                                 if (i)
 460                                         printf(", ");
 461                                 printf("%s", stropts[i]);
 462                                 if (tmp_str && !strcmp(tmp_str, stropts[i]))
 463                                         printf(" (current)");
 464                         }
 465                         printf("\n");
 466                         g_free(stropts);
 467                         g_free(tmp_str);
 468                         g_variant_unref(gvar);
 469
 470                 } else if (srci->datatype == SR_T_UINT64_RANGE) {
 471                         printf("    %s: ", srci->id);
 472                         if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
 473                                         &gvar_list) != SR_OK) {
 474                                 printf("\n");
 475                                 continue;
 476                         }
 477
 478                         if (sr_config_get(sdi->driver, sdi, channel_group, srci->key, &gvar) == SR_OK) {
 479                                 g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
 480                                 g_variant_unref(gvar);
 481                         } else {
 482                                 cur_low = 0;
 483                                 cur_high = 0;
 484                         }
 485
 486                         num_elements = g_variant_n_children(gvar_list);
 487                         for (i = 0; i < num_elements; i++) {
 488                                 gvar = g_variant_get_child_value(gvar_list, i);
 489                                 g_variant_get(gvar, "(tt)", &low, &high);
 490                                 g_variant_unref(gvar);
 491                                 if (i)
 492                                         printf(", ");
 493                                 printf("%"PRIu64"-%"PRIu64, low, high);
 494                                 if (low == cur_low && high == cur_high)
 495                                         printf(" (current)");
 496                         }
 497                         printf("\n");
 498                         g_variant_unref(gvar_list);
 499
 500                 } else if (srci->datatype == SR_T_BOOL) {
 501                         printf("    %s: ", srci->id);
 502                         if (sr_config_get(sdi->driver, sdi, channel_group, srci->key,
 503                                         &gvar) == SR_OK) {
 504                                 if (g_variant_get_boolean(gvar))
 505                                         printf("on (current), off\n");
 506                                 else
 507                                         printf("on, off (current)\n");
 508                                 g_variant_unref(gvar);
 509                         } else
 510                                 printf("on, off\n");
 511
 512                 } else if (srci->datatype == SR_T_DOUBLE_RANGE) {
 513                         printf("    %s: ", srci->id);
 514                         if (sr_config_list(sdi->driver, sdi, channel_group, srci->key,
 515                                         &gvar_list) != SR_OK) {
 516                                 printf("\n");
 517                                 continue;
 518                         }
 519
 520                         if (sr_config_get(sdi->driver, sdi, channel_group, srci->key, &gvar) == SR_OK) {
 521                                 g_variant_get(gvar, "(dd)", &dcur_low, &dcur_high);
 522                                 g_variant_unref(gvar);
 523                         } else {
 524                                 dcur_low = 0;
 525                                 dcur_high = 0;
 526                         }
 527
 528                         num_elements = g_variant_n_children(gvar_list);
 529                         for (i = 0; i < num_elements; i++) {
 530                                 gvar = g_variant_get_child_value(gvar_list, i);
 531                                 g_variant_get(gvar, "(dd)", &dlow, &dhigh);
 532                                 g_variant_unref(gvar);
 533                                 if (i)
 534                                         printf(", ");
 535                                 printf("%.1f-%.1f", dlow, dhigh);
 536                                 if (dlow == dcur_low && dhigh == dcur_high)
 537                                         printf(" (current)");
 538                         }
 539                         printf("\n");
 540                         g_variant_unref(gvar_list);
 541
 542                 } else if (srci->datatype == SR_T_FLOAT) {
 543                         printf("    %s: ", srci->id);
 544                         if (sr_config_get(sdi->driver, sdi, channel_group, srci->key,
 545                                         &gvar) == SR_OK) {
 546                                 printf("%f\n", g_variant_get_double(gvar));
 547                                 g_variant_unref(gvar);
 548                         } else
 549                                 printf("on, off\n");
 550
 551                 } else {
 552
 553                         /* Everything else */
 554                         printf("    %s\n", srci->id);
 555                 }
 556         }
 557         g_variant_unref(gvar_opts);
 558
 559         sr_dev_close(sdi);
 560
 561 }
 562
 563 #ifdef HAVE_SRD
 564 void show_pd_detail(void)
 565 {
 566         struct srd_decoder *dec;
 567         struct srd_decoder_option *o;
 568         struct srd_channel *pdch;
 569         struct srd_decoder_annotation_row *r;
 570         GSList *l, *ll, *ol;
 571         int idx;
 572         char **pdtokens, **pdtok, *optsep, **ann, *val, *doc;
 573
 574         pdtokens = g_strsplit(opt_pds, ",", -1);
 575         for (pdtok = pdtokens; *pdtok; pdtok++) {
 576                 /* Strip options. */
 577                 if ((optsep = strchr(*pdtok, ':')))
 578                         *optsep = '\0';
 579                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 580                         g_critical("Protocol decoder %s not found.", *pdtok);
 581                         return;
 582                 }
 583                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 584                                 dec->id, dec->name, dec->longname, dec->desc);
 585                 printf("License: %s\n", dec->license);
 586                 printf("Annotation classes:\n");
 587                 if (dec->annotations) {
 588                         for (l = dec->annotations; l; l = l->next) {
 589                                 ann = l->data;
 590                                 printf("- %s: %s\n", ann[0], ann[1]);
 591                         }
 592                 } else {
 593                         printf("None.\n");
 594                 }
 595                 printf("Annotation rows:\n");
 596                 if (dec->annotation_rows) {
 597                         for (l = dec->annotation_rows; l; l = l->next) {
 598                                 r = l->data;
 599                                 printf("- %s (%s): ", r->id, r->desc);
 600                                 for (ll = r->ann_classes; ll; ll = ll->next) {
 601                                         idx = GPOINTER_TO_INT(ll->data);
 602                                         ann = g_slist_nth_data(dec->annotations, idx);
 603                                         printf("%s", ann[0]);
 604                                         if (ll->next)
 605                                                 printf(", ");
 606                                 }
 607                                 printf("\n");
 608                         }
 609                 } else {
 610                         printf("None.\n");
 611                 }
 612                 printf("Required channels:\n");
 613                 if (dec->channels) {
 614                         for (l = dec->channels; l; l = l->next) {
 615                                 pdch = l->data;
 616                                 printf("- %s (%s): %s\n",
 617                                        pdch->id, pdch->name, pdch->desc);
 618                         }
 619                 } else {
 620                         printf("None.\n");
 621                 }
 622                 printf("Optional channels:\n");
 623                 if (dec->opt_channels) {
 624                         for (l = dec->opt_channels; l; l = l->next) {
 625                                 pdch = l->data;
 626                                 printf("- %s (%s): %s\n",
 627                                        pdch->id, pdch->name, pdch->desc);
 628                         }
 629                 } else {
 630                         printf("None.\n");
 631                 }
 632                 printf("Options:\n");
 633                 if (dec->options) {
 634                         for (l = dec->options; l; l = l->next) {
 635                                 o = l->data;
 636                                 printf("- %s: %s (", o->id, o->desc);
 637                                 for (ol = o->values; ol; ol = ol->next) {
 638                                         val = g_variant_print(ol->data, FALSE);
 639                                         printf("%s, ", val);
 640                                         g_free(val);
 641                                 }
 642                                 val = g_variant_print(o->def, FALSE);
 643                                 printf("default %s)\n", val);
 644                                 g_free(val);
 645                         }
 646                 } else {
 647                         printf("None.\n");
 648                 }
 649                 if ((doc = srd_decoder_doc_get(dec))) {
 650                         printf("Documentation:\n%s\n",
 651                                doc[0] == '\n' ? doc + 1 : doc);
 652                         g_free(doc);
 653                 }
 654         }
 655
 656         g_strfreev(pdtokens);
 657 }
 658 #endif
 659
 660 void show_input(void)
 661 {
 662         const struct sr_input_module *imod;
 663         const struct sr_option **opts;
 664         GSList *l;
 665         int i;
 666         char *s, **tok;
 667
 668         tok = g_strsplit(opt_input_format, ":", 0);
 669         if (!tok[0] || !(imod = sr_input_find(tok[0])))
 670                 g_critical("Input module '%s' not found.", opt_input_format);
 671
 672         printf("ID: %s\nName: %s\n", sr_input_id_get(imod),
 673                         sr_input_name_get(imod));
 674         printf("Description: %s\n", sr_input_description_get(imod));
 675         if ((opts = sr_input_options_get(imod))) {
 676                 printf("Options:\n");
 677                 for (i = 0; opts[i]; i++) {
 678                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
 679                         if (opts[i]->def) {
 680                                 s = g_variant_print(opts[i]->def, FALSE);
 681                                 printf(" (default %s", s);
 682                                 g_free(s);
 683                                 if (opts[i]->values) {
 684                                         printf(", possible values ");
 685                                         for (l = opts[i]->values; l; l = l->next) {
 686                                                 s = g_variant_print((GVariant *)l->data, FALSE);
 687                                                 printf("%s%s", s, l->next ? ", " : "");
 688                                                 g_free(s);
 689                                         }
 690                                 }
 691                                 printf(")");
 692                         }
 693                         printf("\n");
 694                 }
 695                 sr_input_options_free(opts);
 696         }
 697         g_strfreev(tok);
 698 }
 699
 700 void show_output(void)
 701 {
 702         const struct sr_output_module *omod;
 703         const struct sr_option **opts;
 704         GSList *l;
 705         int i;
 706         char *s, **tok;
 707
 708         tok = g_strsplit(opt_output_format, ":", 0);
 709         if (!tok[0] || !(omod = sr_output_find(tok[0])))
 710                 g_critical("Output module '%s' not found.", opt_output_format);
 711
 712         printf("ID: %s\nName: %s\n", sr_output_id_get(omod),
 713                         sr_output_name_get(omod));
 714         printf("Description: %s\n", sr_output_description_get(omod));
 715         if ((opts = sr_output_options_get(omod))) {
 716                 printf("Options:\n");
 717                 for (i = 0; opts[i]; i++) {
 718                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
 719                         if (opts[i]->def) {
 720                                 s = g_variant_print(opts[i]->def, FALSE);
 721                                 printf(" (default %s", s);
 722                                 g_free(s);
 723                                 if (opts[i]->values) {
 724                                         printf(", possible values ");
 725                                         for (l = opts[i]->values; l; l = l->next) {
 726                                                 s = g_variant_print((GVariant *)l->data, FALSE);
 727                                                 printf("%s%s", s, l->next ? ", " : "");
 728                                                 g_free(s);
 729                                         }
 730                                 }
 731                                 printf(")");
 732                         }
 733                         printf("\n");
 734                 }
 735                 sr_output_options_free(opts);
 736         }
 737         g_strfreev(tok);
 738 }
 739