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