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;
 325         uint64_t p = 0, q = 0, low = 0, high = 0;
 326         uint64_t tmp_uint64, mask, cur_low, cur_high, cur_p, cur_q;
 327         GArray *opts;
 328         const int32_t *int32;
 329         uint32_t key, o, cur_mq, mq;
 330         uint64_t cur_mqflags, mqflags;
 331         unsigned int num_devices, i, j;
 332         char *tmp_str, *s, c;
 333         const char **stropts;
 334
 335         if (parse_driver(opt_drv, &driver_from_opt, NULL)) {
 336                 /* A driver was specified, report driver-wide options now. */
 337                 show_drv_detail(driver_from_opt);
 338         }
 339
 340         if (!(devices = device_scan())) {
 341                 g_critical("No devices found.");
 342                 return;
 343         }
 344
 345         num_devices = g_slist_length(devices);
 346         if (num_devices > 1) {
 347                 g_critical("%d devices found. Use --scan to show them, "
 348                                 "and select one to show.", num_devices);
 349                 return;
 350         }
 351
 352         sdi = devices->data;
 353         g_slist_free(devices);
 354         print_dev_line(sdi);
 355
 356         driver = sr_dev_inst_driver_get(sdi);
 357         channel_groups = sr_dev_inst_channel_groups_get(sdi);
 358
 359         if (sr_dev_open(sdi) != SR_OK) {
 360                 g_critical("Failed to open device.");
 361                 return;
 362         }
 363
 364         /*
 365          * Selected channels and channel group may affect which options are
 366          * returned, or which values for them.
 367          */
 368         select_channels(sdi);
 369         channel_group = select_channel_group(sdi);
 370
 371         if (!(opts = sr_dev_options(driver, sdi, channel_group)))
 372                 /* Driver supports no device instance options. */
 373                 return;
 374
 375         if (channel_groups) {
 376                 printf("Channel groups:\n");
 377                 for (cgl = channel_groups; cgl; cgl = cgl->next) {
 378                         cg = cgl->data;
 379                         printf("    %s: channel%s", cg->name,
 380                                         g_slist_length(cg->channels) > 1 ? "s" : "");
 381                         for (chl = cg->channels; chl; chl = chl->next) {
 382                                 ch = chl->data;
 383                                 printf(" %s", ch->name);
 384                         }
 385                         printf("\n");
 386                 }
 387         }
 388
 389         printf("Supported configuration options");
 390         if (channel_groups) {
 391                 if (!channel_group)
 392                         printf(" across all channel groups");
 393                 else
 394                         printf(" on channel group %s", channel_group->name);
 395         }
 396         printf(":\n");
 397         for (o = 0; o < opts->len; o++) {
 398                 key = g_array_index(opts, uint32_t, o);
 399                 if (!(srci = sr_key_info_get(SR_KEY_CONFIG, key)))
 400                         continue;
 401
 402                 if (key == SR_CONF_TRIGGER_MATCH) {
 403                         if (maybe_config_list(driver, sdi, channel_group, key,
 404                                         &gvar_list) != SR_OK) {
 405                                 printf("\n");
 406                                 continue;
 407                         }
 408                         int32 = g_variant_get_fixed_array(gvar_list,
 409                                         &num_elements, sizeof(int32_t));
 410                         printf("    Supported triggers: ");
 411                         for (i = 0; i < num_elements; i++) {
 412                                 switch (int32[i]) {
 413                                 case SR_TRIGGER_ZERO:
 414                                         c = '0';
 415                                         break;
 416                                 case SR_TRIGGER_ONE:
 417                                         c = '1';
 418                                         break;
 419                                 case SR_TRIGGER_RISING:
 420                                         c = 'r';
 421                                         break;
 422                                 case SR_TRIGGER_FALLING:
 423                                         c = 'f';
 424                                         break;
 425                                 case SR_TRIGGER_EDGE:
 426                                         c = 'e';
 427                                         break;
 428                                 case SR_TRIGGER_OVER:
 429                                         c = 'o';
 430                                         break;
 431                                 case SR_TRIGGER_UNDER:
 432                                         c = 'u';
 433                                         break;
 434                                 default:
 435                                         c = 0;
 436                                         break;
 437                                 }
 438                                 if (c)
 439                                         printf("%c ", c);
 440                         }
 441                         printf("\n");
 442                         g_variant_unref(gvar_list);
 443
 444                 } else if (key == SR_CONF_LIMIT_SAMPLES
 445                                 && (sr_dev_config_capabilities_list(sdi, NULL, key)
 446                                         & SR_CONF_LIST)) {
 447                         /*
 448                          * If implemented in config_list(), this denotes the
 449                          * maximum number of samples a device can send. This
 450                          * really applies only to logic analyzers, and then
 451                          * only to those that don't support compression, or
 452                          * have it turned off by default. The values returned
 453                          * are the low/high limits.
 454                          */
 455                         if (sr_config_list(driver, sdi, channel_group, key,
 456                                         &gvar) == SR_OK) {
 457                                 g_variant_get(gvar, "(tt)", &low, &high);
 458                                 g_variant_unref(gvar);
 459                                 printf("    Maximum number of samples: %"PRIu64"\n", high);
 460                         }
 461
 462                 } else if (key == SR_CONF_SAMPLERATE) {
 463                         /* Supported samplerates */
 464                         printf("    %s", srci->id);
 465                         if (maybe_config_list(driver, sdi, channel_group, SR_CONF_SAMPLERATE,
 466                                         &gvar_dict) != SR_OK) {
 467                                 printf("\n");
 468                                 continue;
 469                         }
 470                         if ((gvar_list = g_variant_lookup_value(gvar_dict,
 471                                         "samplerates", G_VARIANT_TYPE("at")))) {
 472                                 uint64 = g_variant_get_fixed_array(gvar_list,
 473                                                 &num_elements, sizeof(uint64_t));
 474                                 printf(" - supported samplerates:\n");
 475                                 for (i = 0; i < num_elements; i++) {
 476                                         if (!(s = sr_samplerate_string(uint64[i])))
 477                                                 continue;
 478                                         printf("      %s\n", s);
 479                                         g_free(s);
 480                                 }
 481                                 g_variant_unref(gvar_list);
 482                         } else if ((gvar_list = g_variant_lookup_value(gvar_dict,
 483                                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
 484                                 uint64 = g_variant_get_fixed_array(gvar_list,
 485                                                 &num_elements, sizeof(uint64_t));
 486                                 /* low */
 487                                 if (!(s = sr_samplerate_string(uint64[0])))
 488                                         continue;
 489                                 printf(" (%s", s);
 490                                 g_free(s);
 491                                 /* high */
 492                                 if (!(s = sr_samplerate_string(uint64[1])))
 493                                         continue;
 494                                 printf(" - %s", s);
 495                                 g_free(s);
 496                                 /* step */
 497                                 if (!(s = sr_samplerate_string(uint64[2])))
 498                                         continue;
 499                                 printf(" in steps of %s)\n", s);
 500                                 g_free(s);
 501                                 g_variant_unref(gvar_list);
 502                         }
 503                         g_variant_unref(gvar_dict);
 504
 505                 } else if (srci->datatype == SR_T_UINT64) {
 506                         printf("    %s: ", srci->id);
 507                         gvar = NULL;
 508                         if (maybe_config_get(driver, sdi, channel_group, key,
 509                                         &gvar) == SR_OK) {
 510                                 tmp_uint64 = g_variant_get_uint64(gvar);
 511                                 g_variant_unref(gvar);
 512                         } else
 513                                 tmp_uint64 = 0;
 514                         if (maybe_config_list(driver, sdi, channel_group,
 515                                         key, &gvar_list) != SR_OK) {
 516                                 if (gvar) {
 517                                         /* Can't list it, but we have a value to show. */
 518                                         printf("%"PRIu64" (current)", tmp_uint64);
 519                                 }
 520                                 printf("\n");
 521                                 continue;
 522                         }
 523                         uint64 = g_variant_get_fixed_array(gvar_list,
 524                                         &num_elements, sizeof(uint64_t));
 525                         printf(" - supported values:\n");
 526                         for (i = 0; i < num_elements; i++) {
 527                                 printf("      %"PRIu64, uint64[i]);
 528                                 if (gvar && tmp_uint64 == uint64[i])
 529                                         printf(" (current)");
 530                                 printf("\n");
 531                         }
 532                         g_variant_unref(gvar_list);
 533
 534                 } else if (srci->datatype == SR_T_STRING) {
 535                         printf("    %s: ", srci->id);
 536                         if (maybe_config_get(driver, sdi, channel_group, key,
 537                                         &gvar) == SR_OK) {
 538                                 tmp_str = g_strdup(g_variant_get_string(gvar, NULL));
 539                                 g_variant_unref(gvar);
 540                         } else
 541                                 tmp_str = NULL;
 542
 543                         if (maybe_config_list(driver, sdi, channel_group, key,
 544                                         &gvar) != SR_OK) {
 545                                 if (tmp_str) {
 546                                         /* Can't list it, but we have a value to show. */
 547                                         printf("%s (current)", tmp_str);
 548                                 }
 549                                 printf("\n");
 550                                 g_free(tmp_str);
 551                                 continue;
 552                         }
 553
 554                         stropts = g_variant_get_strv(gvar, &num_elements);
 555                         for (i = 0; i < num_elements; i++) {
 556                                 if (i)
 557                                         printf(", ");
 558                                 printf("%s", stropts[i]);
 559                                 if (tmp_str && !strcmp(tmp_str, stropts[i]))
 560                                         printf(" (current)");
 561                         }
 562                         printf("\n");
 563                         g_free(stropts);
 564                         g_free(tmp_str);
 565                         g_variant_unref(gvar);
 566
 567                 } else if (srci->datatype == SR_T_UINT64_RANGE) {
 568                         printf("    %s: ", srci->id);
 569                         if (maybe_config_list(driver, sdi, channel_group, key,
 570                                         &gvar_list) != SR_OK) {
 571                                 printf("\n");
 572                                 continue;
 573                         }
 574
 575                         if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) {
 576                                 g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
 577                                 g_variant_unref(gvar);
 578                         } else {
 579                                 cur_low = 0;
 580                                 cur_high = 0;
 581                         }
 582
 583                         num_elements = g_variant_n_children(gvar_list);
 584                         for (i = 0; i < num_elements; i++) {
 585                                 gvar = g_variant_get_child_value(gvar_list, i);
 586                                 g_variant_get(gvar, "(tt)", &low, &high);
 587                                 g_variant_unref(gvar);
 588                                 if (i)
 589                                         printf(", ");
 590                                 printf("%"PRIu64"-%"PRIu64, low, high);
 591                                 if (low == cur_low && high == cur_high)
 592                                         printf(" (current)");
 593                         }
 594                         printf("\n");
 595                         g_variant_unref(gvar_list);
 596
 597                 } else if (srci->datatype == SR_T_BOOL) {
 598                         printf("    %s: ", srci->id);
 599                         if (maybe_config_get(driver, sdi, channel_group, key,
 600                                         &gvar) == SR_OK) {
 601                                 if (g_variant_get_boolean(gvar))
 602                                         printf("on (current), off\n");
 603                                 else
 604                                         printf("on, off (current)\n");
 605                                 g_variant_unref(gvar);
 606                         } else
 607                                 printf("on, off\n");
 608
 609                 } else if (srci->datatype == SR_T_DOUBLE_RANGE) {
 610                         printf("    %s: ", srci->id);
 611                         if (maybe_config_list(driver, sdi, channel_group, key,
 612                                         &gvar_list) != SR_OK) {
 613                                 printf("\n");
 614                                 continue;
 615                         }
 616
 617                         if (maybe_config_get(driver, sdi, channel_group, key, &gvar) == SR_OK) {
 618                                 g_variant_get(gvar, "(dd)", &dcur_low, &dcur_high);
 619                                 g_variant_unref(gvar);
 620                         } else {
 621                                 dcur_low = 0;
 622                                 dcur_high = 0;
 623                         }
 624
 625                         num_elements = g_variant_n_children(gvar_list);
 626                         for (i = 0; i < num_elements; i++) {
 627                                 gvar = g_variant_get_child_value(gvar_list, i);
 628                                 g_variant_get(gvar, "(dd)", &dlow, &dhigh);
 629                                 g_variant_unref(gvar);
 630                                 if (i)
 631                                         printf(", ");
 632                                 printf("%.1f-%.1f", dlow, dhigh);
 633                                 if (dlow == dcur_low && dhigh == dcur_high)
 634                                         printf(" (current)");
 635                         }
 636                         printf("\n");
 637                         g_variant_unref(gvar_list);
 638
 639                 } else if (srci->datatype == SR_T_FLOAT) {
 640                         printf("    %s: ", srci->id);
 641                         if (maybe_config_get(driver, sdi, channel_group, key,
 642                                         &gvar) == SR_OK) {
 643                                 printf("%f\n", g_variant_get_double(gvar));
 644                                 g_variant_unref(gvar);
 645                         } else
 646                                 printf("\n");
 647
 648                 } else if (srci->datatype == SR_T_RATIONAL_PERIOD
 649                                 || srci->datatype == SR_T_RATIONAL_VOLT) {
 650                         printf("    %s", srci->id);
 651                         if (maybe_config_get(driver, sdi, channel_group, key,
 652                                         &gvar) == SR_OK) {
 653                                 g_variant_get(gvar, "(tt)", &cur_p, &cur_q);
 654                                 g_variant_unref(gvar);
 655                         } else
 656                                 cur_p = cur_q = 0;
 657
 658                         if (maybe_config_list(driver, sdi, channel_group,
 659                                         key, &gvar_list) != SR_OK) {
 660                                 printf("\n");
 661                                 continue;
 662                         }
 663                         printf(" - supported values:\n");
 664                         num_elements = g_variant_n_children(gvar_list);
 665                         for (i = 0; i < num_elements; i++) {
 666                                 gvar = g_variant_get_child_value(gvar_list, i);
 667                                 g_variant_get(gvar, "(tt)", &p, &q);
 668                                 if (srci->datatype == SR_T_RATIONAL_PERIOD)
 669                                         s = sr_period_string(p, q);
 670                                 else
 671                                         s = sr_voltage_string(p, q);
 672                                 printf("      %s", s);
 673                                 g_free(s);
 674                                 if (p == cur_p && q == cur_q)
 675                                         printf(" (current)");
 676                                 printf("\n");
 677                         }
 678                         g_variant_unref(gvar_list);
 679
 680                 } else if (srci->datatype == SR_T_MQ) {
 681                         printf("    %s: ", srci->id);
 682                         if (maybe_config_get(driver, sdi, channel_group, key,
 683                                         &gvar) == SR_OK
 684                                         && g_variant_is_of_type(gvar, G_VARIANT_TYPE_TUPLE)
 685                                         && g_variant_n_children(gvar) == 2) {
 686                                 g_variant_get(gvar, "(ut)", &cur_mq, &cur_mqflags);
 687                                 g_variant_unref(gvar);
 688                         } else
 689                                 cur_mq = cur_mqflags = 0;
 690
 691                         if (maybe_config_list(driver, sdi, channel_group,
 692                                         key, &gvar_list) != SR_OK) {
 693                                 printf("\n");
 694                                 continue;
 695                         }
 696                         printf(" - supported measurements:\n");
 697                         num_elements = g_variant_n_children(gvar_list);
 698                         for (i = 0; i < num_elements; i++) {
 699                                 printf("      ");
 700                                 gvar = g_variant_get_child_value(gvar_list, i);
 701                                 g_variant_get(gvar, "(ut)", &mq, &mqflags);
 702                                 if ((srmqi = sr_key_info_get(SR_KEY_MQ, mq)))
 703                                         printf("%s", srmqi->id);
 704                                 else
 705                                         printf("%d", mq);
 706                                 for (j = 0, mask = 1; j < 32; j++, mask <<= 1) {
 707                                         if (!(mqflags & mask))
 708                                                 continue;
 709                                         if ((srmqfi = sr_key_info_get(SR_KEY_MQFLAGS, mqflags & mask)))
 710                                                 printf("/%s", srmqfi->id);
 711                                         else
 712                                                 printf("/%" PRIu64, mqflags & mask);
 713                                 }
 714                                 if (mq == cur_mq && mqflags == cur_mqflags)
 715                                         printf(" (current)");
 716                                 printf("\n");
 717                         }
 718                         g_variant_unref(gvar_list);
 719
 720                 } else {
 721
 722                         /* Everything else */
 723                         printf("    %s\n", srci->id);
 724                 }
 725         }
 726         g_array_free(opts, TRUE);
 727
 728         sr_dev_close(sdi);
 729
 730 }
 731
 732 #ifdef HAVE_SRD
 733 static void show_pd_detail_single(const char *pd)
 734 {
 735         struct srd_decoder *dec;
 736         struct srd_decoder_option *o;
 737         struct srd_channel *pdch;
 738         struct srd_decoder_annotation_row *r;
 739         GSList *l, *ll, *ol;
 740         int idx;
 741         char **pdtokens, **pdtok, *optsep, **ann, **bin, *val, *doc, *str;
 742
 743         pdtokens = g_strsplit(pd, ",", -1);
 744         for (pdtok = pdtokens; *pdtok; pdtok++) {
 745                 /* Strip options. */
 746                 if ((optsep = strchr(*pdtok, ':')))
 747                         *optsep = '\0';
 748                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 749                         g_critical("Protocol decoder %s not found.", *pdtok);
 750                         return;
 751                 }
 752                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 753                                 dec->id, dec->name, dec->longname, dec->desc);
 754                 printf("License: %s\n", dec->license);
 755                 printf("Possible decoder input IDs:\n");
 756                 if (dec->inputs) {
 757                         for (l = dec->inputs; l; l = l->next) {
 758                                 str = l->data;
 759                                 printf("- %s\n", str);
 760                         }
 761                 } else {
 762                         printf("None.\n");
 763                 }
 764                 printf("Possible decoder output IDs:\n");
 765                 if (dec->outputs) {
 766                         for (l = dec->outputs; l; l = l->next) {
 767                                 str = l->data;
 768                                 printf("- %s\n", str);
 769                         }
 770                 } else {
 771                         printf("None.\n");
 772                 }
 773                 printf("Annotation classes:\n");
 774                 if (dec->annotations) {
 775                         for (l = dec->annotations; l; l = l->next) {
 776                                 ann = l->data;
 777                                 printf("- %s: %s\n", ann[0], ann[1]);
 778                         }
 779                 } else {
 780                         printf("None.\n");
 781                 }
 782                 printf("Annotation rows:\n");
 783                 if (dec->annotation_rows) {
 784                         for (l = dec->annotation_rows; l; l = l->next) {
 785                                 r = l->data;
 786                                 printf("- %s (%s): ", r->id, r->desc);
 787                                 for (ll = r->ann_classes; ll; ll = ll->next) {
 788                                         idx = GPOINTER_TO_INT(ll->data);
 789                                         ann = g_slist_nth_data(dec->annotations, idx);
 790                                         printf("%s", ann[0]);
 791                                         if (ll->next)
 792                                                 printf(", ");
 793                                 }
 794                                 printf("\n");
 795                         }
 796                 } else {
 797                         printf("None.\n");
 798                 }
 799                 printf("Binary classes:\n");
 800                 if (dec->binary) {
 801                         for (l = dec->binary; l; l = l->next) {
 802                                 bin = l->data;
 803                                 printf("- %s: %s\n", bin[0], bin[1]);
 804                         }
 805                 } else {
 806                         printf("None.\n");
 807                 }
 808                 printf("Required channels:\n");
 809                 if (dec->channels) {
 810                         for (l = dec->channels; l; l = l->next) {
 811                                 pdch = l->data;
 812                                 printf("- %s (%s): %s\n",
 813                                        pdch->id, pdch->name, pdch->desc);
 814                         }
 815                 } else {
 816                         printf("None.\n");
 817                 }
 818                 printf("Optional channels:\n");
 819                 if (dec->opt_channels) {
 820                         for (l = dec->opt_channels; l; l = l->next) {
 821                                 pdch = l->data;
 822                                 printf("- %s (%s): %s\n",
 823                                        pdch->id, pdch->name, pdch->desc);
 824                         }
 825                 } else {
 826                         printf("None.\n");
 827                 }
 828                 printf("Options:\n");
 829                 if (dec->options) {
 830                         for (l = dec->options; l; l = l->next) {
 831                                 o = l->data;
 832                                 printf("- %s: %s (", o->id, o->desc);
 833                                 for (ol = o->values; ol; ol = ol->next) {
 834                                         val = g_variant_print(ol->data, FALSE);
 835                                         printf("%s, ", val);
 836                                         g_free(val);
 837                                 }
 838                                 val = g_variant_print(o->def, FALSE);
 839                                 printf("default %s)\n", val);
 840                                 g_free(val);
 841                         }
 842                 } else {
 843                         printf("None.\n");
 844                 }
 845                 if ((doc = srd_decoder_doc_get(dec))) {
 846                         printf("Documentation:\n%s\n",
 847                                doc[0] == '\n' ? doc + 1 : doc);
 848                         g_free(doc);
 849                 }
 850         }
 851
 852         g_strfreev(pdtokens);
 853 }
 854
 855 void show_pd_detail(void)
 856 {
 857         for (int i = 0; opt_pds[i]; i++)
 858                 show_pd_detail_single(opt_pds[i]);
 859 }
 860 #endif
 861
 862 void show_input(void)
 863 {
 864         const struct sr_input_module *imod;
 865         const struct sr_option **opts;
 866         GSList *l;
 867         int i;
 868         char *s, **tok;
 869
 870         tok = g_strsplit(opt_input_format, ":", 0);
 871         if (!tok[0] || !(imod = sr_input_find(tok[0])))
 872                 g_critical("Input module '%s' not found.", opt_input_format);
 873
 874         printf("ID: %s\nName: %s\n", sr_input_id_get(imod),
 875                         sr_input_name_get(imod));
 876         printf("Description: %s\n", sr_input_description_get(imod));
 877         if ((opts = sr_input_options_get(imod))) {
 878                 printf("Options:\n");
 879                 for (i = 0; opts[i]; i++) {
 880                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
 881                         if (opts[i]->def) {
 882                                 s = g_variant_print(opts[i]->def, FALSE);
 883                                 printf(" (default %s", s);
 884                                 g_free(s);
 885                                 if (opts[i]->values) {
 886                                         printf(", possible values ");
 887                                         for (l = opts[i]->values; l; l = l->next) {
 888                                                 s = g_variant_print((GVariant *)l->data, FALSE);
 889                                                 printf("%s%s", s, l->next ? ", " : "");
 890                                                 g_free(s);
 891                                         }
 892                                 }
 893                                 printf(")");
 894                         }
 895                         printf("\n");
 896                 }
 897                 sr_input_options_free(opts);
 898         }
 899         g_strfreev(tok);
 900 }
 901
 902 void show_output(void)
 903 {
 904         const struct sr_output_module *omod;
 905         const struct sr_option **opts;
 906         GSList *l;
 907         int i;
 908         char *s, **tok;
 909
 910         tok = g_strsplit(opt_output_format, ":", 0);
 911         if (!tok[0] || !(omod = sr_output_find(tok[0])))
 912                 g_critical("Output module '%s' not found.", opt_output_format);
 913
 914         printf("ID: %s\nName: %s\n", sr_output_id_get(omod),
 915                         sr_output_name_get(omod));
 916         printf("Description: %s\n", sr_output_description_get(omod));
 917         if ((opts = sr_output_options_get(omod))) {
 918                 printf("Options:\n");
 919                 for (i = 0; opts[i]; i++) {
 920                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
 921                         if (opts[i]->def) {
 922                                 s = g_variant_print(opts[i]->def, FALSE);
 923                                 printf(" (default %s", s);
 924                                 g_free(s);
 925                                 if (opts[i]->values) {
 926                                         printf(", possible values ");
 927                                         for (l = opts[i]->values; l; l = l->next) {
 928                                                 s = g_variant_print((GVariant *)l->data, FALSE);
 929                                                 printf("%s%s", s, l->next ? ", " : "");
 930                                                 g_free(s);
 931                                         }
 932                                 }
 933                                 printf(")");
 934                         }
 935                         printf("\n");
 936                 }
 937                 sr_output_options_free(opts);
 938         }
 939         g_strfreev(tok);
 940 }
 941
 942 void show_transform(void)
 943 {
 944         const struct sr_transform_module *tmod;
 945         const struct sr_option **opts;
 946         GSList *l;
 947         int i;
 948         char *s, **tok;
 949
 950         tok = g_strsplit(opt_transform_module, ":", 0);
 951         if (!tok[0] || !(tmod = sr_transform_find(tok[0])))
 952                 g_critical("Transform module '%s' not found.", opt_transform_module);
 953
 954         printf("ID: %s\nName: %s\n", sr_transform_id_get(tmod),
 955                         sr_transform_name_get(tmod));
 956         printf("Description: %s\n", sr_transform_description_get(tmod));
 957         if ((opts = sr_transform_options_get(tmod))) {
 958                 printf("Options:\n");
 959                 for (i = 0; opts[i]; i++) {
 960                         printf("  %s: %s", opts[i]->id, opts[i]->desc);
 961                         if (opts[i]->def) {
 962                                 s = g_variant_print(opts[i]->def, FALSE);
 963                                 printf(" (default %s", s);
 964                                 g_free(s);
 965                                 if (opts[i]->values) {
 966                                         printf(", possible values ");
 967                                         for (l = opts[i]->values; l; l = l->next) {
 968                                                 s = g_variant_print((GVariant *)l->data, FALSE);
 969                                                 printf("%s%s", s, l->next ? ", " : "");
 970                                                 g_free(s);
 971                                         }
 972                                 }
 973                                 printf(")");
 974                         }
 975                         printf("\n");
 976                 }
 977                 sr_transform_options_free(opts);
 978         }
 979         g_strfreev(tok);
 980 }