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 = 0, q = 0, low = 0, high = 0;
 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 }