sigrok-cli.c

   1 /*
   2  * This file is part of the sigrok project.
   3  *
   4  * Copyright (C) 2012 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 <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <string.h>
  25 #include <time.h>
  26 #include <sys/time.h>
  27 #include <inttypes.h>
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <errno.h>
  31 #include <glib.h>
  32 #include <glib/gstdio.h>
  33 #include <sigrok.h>
  34 #include "sigrok-cli.h"
  35 #include "config.h"
  36
  37 #define DEFAULT_OUTPUT_FORMAT "bits:width=64"
  38
  39 extern struct sr_hwcap_option sr_hwcap_options[];
  40
  41 static uint64_t limit_samples = 0;
  42 static uint64_t limit_frames = 0;
  43 static struct sr_output_format *output_format = NULL;
  44 static int default_output_format = FALSE;
  45 static char *output_format_param = NULL;
  46 static char *input_format_param = NULL;
  47 static GHashTable *pd_ann_visible = NULL;
  48
  49 static gboolean opt_version = FALSE;
  50 static gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */
  51 static gboolean opt_list_devs = FALSE;
  52 static gboolean opt_wait_trigger = FALSE;
  53 static gchar *opt_input_file = NULL;
  54 static gchar *opt_output_file = NULL;
  55 static gchar *opt_dev = NULL;
  56 static gchar *opt_probes = NULL;
  57 static gchar *opt_triggers = NULL;
  58 static gchar *opt_pds = NULL;
  59 static gchar *opt_pd_stack = NULL;
  60 static gchar *opt_pd_annotations = NULL;
  61 static gchar *opt_input_format = NULL;
  62 static gchar *opt_output_format = NULL;
  63 static gchar *opt_time = NULL;
  64 static gchar *opt_samples = NULL;
  65 static gchar *opt_frames = NULL;
  66 static gchar *opt_continuous = NULL;
  67
  68 static GOptionEntry optargs[] = {
  69         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
  70                         "Show version and support list", NULL},
  71         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
  72                         "Set libsigrok/libsigrokdecode loglevel", NULL},
  73         {"list-devices", 'D', 0, G_OPTION_ARG_NONE, &opt_list_devs,
  74                         "Scan for devices", NULL},
  75         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev,
  76                         "Use specified device", NULL},
  77         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
  78                         "Load input from file", NULL},
  79         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
  80                         "Input format", NULL},
  81         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
  82                         "Save output to file", NULL},
  83         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
  84                         "Output format", NULL},
  85         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
  86                         "Probes to use", NULL},
  87         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
  88                         "Trigger configuration", NULL},
  89         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
  90                         "Wait for trigger", NULL},
  91         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds,
  92                         "Protocol decoders to run", NULL},
  93         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
  94                         "Protocol decoder stack", NULL},
  95         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
  96                         "Protocol decoder annotation(s) to show", NULL},
  97         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
  98                         "How long to sample (ms)", NULL},
  99         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
 100                         "Number of samples to acquire", NULL},
 101         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
 102                         "Number of frames to acquire", NULL},
 103         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
 104                         "Sample continuously", NULL},
 105         {NULL, 0, 0, 0, NULL, NULL, NULL}
 106 };
 107
 108 static void show_version(void)
 109 {
 110         GSList *l;
 111         struct sr_dev_driver **drivers;
 112         struct sr_input_format **inputs;
 113         struct sr_output_format **outputs;
 114         struct srd_decoder *dec;
 115         int i;
 116
 117         printf("sigrok-cli %s\n\n", VERSION);
 118
 119         printf("Using libsigrok %s (lib version %s).\n",
 120                sr_package_version_string_get(), sr_lib_version_string_get());
 121         printf("Using libsigrokdecode %s (lib version %s).\n\n",
 122                srd_package_version_string_get(), srd_lib_version_string_get());
 123
 124         printf("Supported hardware drivers:\n");
 125         drivers = sr_driver_list();
 126         for (i = 0; drivers[i]; i++) {
 127                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
 128         }
 129         printf("\n");
 130
 131         printf("Supported input formats:\n");
 132         inputs = sr_input_list();
 133         for (i = 0; inputs[i]; i++)
 134                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
 135         printf("\n");
 136
 137         printf("Supported output formats:\n");
 138         outputs = sr_output_list();
 139         for (i = 0; outputs[i]; i++)
 140                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
 141         printf("\n");
 142
 143         if (srd_init(NULL) == SRD_OK) {
 144                 printf("Supported protocol decoders:\n");
 145                 srd_decoder_load_all();
 146                 for (l = srd_decoder_list(); l; l = l->next) {
 147                         dec = l->data;
 148                         printf("  %-20s %s\n", dec->id, dec->longname);
 149                         /* Print protocol description upon "-l 3" or higher. */
 150                         if (opt_loglevel >= SR_LOG_INFO)
 151                                 printf("  %-20s %s\n", "", dec->desc);
 152                 }
 153                 srd_exit();
 154         }
 155         printf("\n");
 156 }
 157
 158 static void print_dev_line(const struct sr_dev *dev)
 159 {
 160         const struct sr_dev_inst *sdi;
 161
 162         sr_dev_info_get(dev, SR_DI_INST, (const void **)&sdi);
 163
 164         if (sdi->vendor && sdi->vendor[0])
 165                 printf("%s ", sdi->vendor);
 166         if (sdi->model && sdi->model[0])
 167                 printf("%s ", sdi->model);
 168         if (sdi->version && sdi->version[0])
 169                 printf("%s ", sdi->version);
 170         if (dev->probes)
 171                 printf("with %d probes", g_slist_length(dev->probes));
 172         printf("\n");
 173 }
 174
 175 static void show_dev_list(void)
 176 {
 177         struct sr_dev *dev, *demo_dev;
 178         GSList *devs, *l;
 179         int devcnt;
 180
 181         devcnt = 0;
 182         devs = sr_dev_list();
 183
 184         if (g_slist_length(devs) == 0)
 185                 return;
 186
 187         printf("The following devices were found:\nID    Device\n");
 188         demo_dev = NULL;
 189         for (l = devs; l; l = l->next) {
 190                 dev = l->data;
 191                 if (sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV)) {
 192                         demo_dev = dev;
 193                         continue;
 194                 }
 195                 printf("%-3d   ", devcnt++);
 196                 print_dev_line(dev);
 197         }
 198         if (demo_dev) {
 199                 printf("demo  ");
 200                 print_dev_line(demo_dev);
 201         }
 202 }
 203
 204 static void show_dev_detail(void)
 205 {
 206         struct sr_dev *dev;
 207         struct sr_hwcap_option *hwo;
 208         const struct sr_samplerates *samplerates;
 209         struct sr_rational *rationals;
 210         uint64_t *integers;
 211         int cap, *hwcaps, i;
 212         char *s, *title;
 213         const char *charopts, **stropts;
 214
 215         dev = parse_devstring(opt_dev);
 216         if (!dev) {
 217                 printf("No such device. Use -D to list all devices.\n");
 218                 return;
 219         }
 220
 221         print_dev_line(dev);
 222
 223         if (sr_dev_info_get(dev, SR_DI_TRIGGER_TYPES,
 224                                         (const void **)&charopts) == SR_OK) {
 225                 printf("Supported triggers: ");
 226                 while (*charopts) {
 227                         printf("%c ", *charopts);
 228                         charopts++;
 229                 }
 230                 printf("\n");
 231         }
 232
 233         title = "Supported options:\n";
 234         hwcaps = dev->driver->hwcap_get_all();
 235         for (cap = 0; hwcaps[cap]; cap++) {
 236                 if (!(hwo = sr_hw_hwcap_get(hwcaps[cap])))
 237                         continue;
 238
 239                 if (title) {
 240                         printf("%s", title);
 241                         title = NULL;
 242                 }
 243
 244                 if (hwo->hwcap == SR_HWCAP_PATTERN_MODE) {
 245                         /* Pattern generator modes */
 246                         printf("    %s", hwo->shortname);
 247                         if (sr_dev_info_get(dev, SR_DI_PATTERNS,
 248                                         (const void **)&stropts) == SR_OK) {
 249                                 printf(" - supported patterns:\n");
 250                                 for (i = 0; stropts[i]; i++)
 251                                         printf("      %s\n", stropts[i]);
 252                         } else {
 253                                 printf("\n");
 254                         }
 255
 256                 } else if (hwo->hwcap == SR_HWCAP_SAMPLERATE) {
 257                         /* Supported samplerates */
 258                         printf("    %s", hwo->shortname);
 259                         if (sr_dev_info_get(dev, SR_DI_SAMPLERATES,
 260                                         (const void **)&samplerates) != SR_OK) {
 261                                 printf("\n");
 262                                 continue;
 263                         }
 264                         if (samplerates->step) {
 265                                 /* low */
 266                                 if (!(s = sr_samplerate_string(samplerates->low)))
 267                                         continue;
 268                                 printf(" (%s", s);
 269                                 g_free(s);
 270                                 /* high */
 271                                 if (!(s = sr_samplerate_string(samplerates->high)))
 272                                         continue;
 273                                 printf(" - %s", s);
 274                                 g_free(s);
 275                                 /* step */
 276                                 if (!(s = sr_samplerate_string(samplerates->step)))
 277                                         continue;
 278                                 printf(" in steps of %s)\n", s);
 279                                 g_free(s);
 280                         } else {
 281                                 printf(" - supported samplerates:\n");
 282                                 for (i = 0; samplerates->list[i]; i++)
 283                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
 284                         }
 285
 286                 } else if (hwo->hwcap == SR_HWCAP_BUFFERSIZE) {
 287                         /* Supported buffer sizes */
 288                         printf("    %s", hwo->shortname);
 289                         if (sr_dev_info_get(dev, SR_DI_BUFFERSIZES,
 290                                         (const void **)&integers) != SR_OK) {
 291                                 printf("\n");
 292                                 continue;
 293                         }
 294                         printf(" - supported buffer sizes:\n");
 295                         for (i = 0; integers[i]; i++)
 296                                 printf("      %"PRIu64"\n", integers[i]);
 297
 298                 } else if (hwo->hwcap == SR_HWCAP_TIMEBASE) {
 299                         /* Supported time bases */
 300                         printf("    %s", hwo->shortname);
 301                         if (sr_dev_info_get(dev, SR_DI_TIMEBASES,
 302                                         (const void **)&rationals) != SR_OK) {
 303                                 printf("\n");
 304                                 continue;
 305                         }
 306                         printf(" - supported time bases:\n");
 307                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 308                                 printf("      %s\n", sr_period_string(
 309                                                 rationals[i].p * rationals[i].q));
 310
 311                 } else if (hwo->hwcap == SR_HWCAP_TRIGGER_SOURCE) {
 312                         /* Supported trigger sources */
 313                         printf("    %s", hwo->shortname);
 314                         if (sr_dev_info_get(dev, SR_DI_TRIGGER_SOURCES,
 315                                         (const void **)&stropts) != SR_OK) {
 316                                 printf("\n");
 317                                 continue;
 318                         }
 319                         printf(" - supported trigger sources:\n");
 320                         for (i = 0; stropts[i]; i++)
 321                                 printf("      %s\n", stropts[i]);
 322
 323                 } else {
 324                         /* Everything else */
 325                         printf("    %s\n", hwo->shortname);
 326                 }
 327         }
 328 }
 329
 330 static void show_pd_detail(void)
 331 {
 332         GSList *l;
 333         struct srd_decoder *dec;
 334         char **pdtokens, **pdtok, **ann, *doc;
 335         struct srd_probe *p;
 336
 337         pdtokens = g_strsplit(opt_pds, ",", -1);
 338         for (pdtok = pdtokens; *pdtok; pdtok++) {
 339                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 340                         printf("Protocol decoder %s not found.\n", *pdtok);
 341                         return;
 342                 }
 343                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 344                                 dec->id, dec->name, dec->longname, dec->desc);
 345                 printf("License: %s\n", dec->license);
 346                 printf("Annotations:\n");
 347                 if (dec->annotations) {
 348                         for (l = dec->annotations; l; l = l->next) {
 349                                 ann = l->data;
 350                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 351                         }
 352                 } else {
 353                         printf("None.\n");
 354                 }
 355                 /* TODO: Print supported decoder options. */
 356                 printf("Required probes:\n");
 357                 if (dec->probes) {
 358                         for (l = dec->probes; l; l = l->next) {
 359                                 p = l->data;
 360                                 printf("- %s (%s): %s\n",
 361                                        p->name, p->id, p->desc);
 362                         }
 363                 } else {
 364                         printf("None.\n");
 365                 }
 366                 printf("Optional probes:\n");
 367                 if (dec->opt_probes) {
 368                         for (l = dec->opt_probes; l; l = l->next) {
 369                                 p = l->data;
 370                                 printf("- %s (%s): %s\n",
 371                                        p->name, p->id, p->desc);
 372                         }
 373                 } else {
 374                         printf("None.\n");
 375                 }
 376                 if ((doc = srd_decoder_doc_get(dec))) {
 377                         printf("Documentation:\n%s\n",
 378                                doc[0] == '\n' ? doc + 1 : doc);
 379                         g_free(doc);
 380                 }
 381         }
 382
 383         g_strfreev(pdtokens);
 384 }
 385
 386 static void datafeed_in(struct sr_dev *dev, struct sr_datafeed_packet *packet)
 387 {
 388         static struct sr_output *o = NULL;
 389         static int logic_probelist[SR_MAX_NUM_PROBES] = { 0 };
 390         static struct sr_probe *analog_probelist[SR_MAX_NUM_PROBES];
 391         static uint64_t received_samples = 0;
 392         static int unitsize = 0;
 393         static int triggered = 0;
 394         static FILE *outfile = NULL;
 395         static int num_analog_probes = 0;
 396         struct sr_probe *probe;
 397         struct sr_datafeed_logic *logic;
 398         struct sr_datafeed_meta_logic *meta_logic;
 399         struct sr_datafeed_analog *analog;
 400         struct sr_datafeed_meta_analog *meta_analog;
 401         static int num_enabled_analog_probes = 0;
 402         int num_enabled_probes, sample_size, data_offset, ret, i, j;
 403         uint64_t output_len, filter_out_len;
 404         uint8_t *output_buf, *filter_out;
 405         float asample;
 406
 407         /* If the first packet to come in isn't a header, don't even try. */
 408         if (packet->type != SR_DF_HEADER && o == NULL)
 409                 return;
 410
 411         sample_size = -1;
 412         switch (packet->type) {
 413         case SR_DF_HEADER:
 414                 g_debug("cli: Received SR_DF_HEADER");
 415                 /* Initialize the output module. */
 416                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 417                         g_critical("Output module malloc failed.");
 418                         exit(1);
 419                 }
 420                 o->format = output_format;
 421                 o->dev = dev;
 422                 o->param = output_format_param;
 423                 if (o->format->init) {
 424                         if (o->format->init(o) != SR_OK) {
 425                                 g_critical("Output format initialization failed.");
 426                                 exit(1);
 427                         }
 428                 }
 429                 break;
 430
 431         case SR_DF_END:
 432                 g_debug("cli: Received SR_DF_END");
 433                 if (!o) {
 434                         g_debug("cli: double end!");
 435                         break;
 436                 }
 437                 if (o->format->event) {
 438                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 439                         if (output_len) {
 440                                 if (outfile)
 441                                         fwrite(output_buf, 1, output_len, outfile);
 442                                 g_free(output_buf);
 443                                 output_len = 0;
 444                         }
 445                 }
 446                 if (limit_samples && received_samples < limit_samples)
 447                         g_warning("Device only sent %" PRIu64 " samples.",
 448                                received_samples);
 449                 if (opt_continuous)
 450                         g_warning("Device stopped after %" PRIu64 " samples.",
 451                                received_samples);
 452                 sr_session_halt();
 453                 if (outfile && outfile != stdout)
 454                         fclose(outfile);
 455                 g_free(o);
 456                 o = NULL;
 457                 break;
 458
 459         case SR_DF_TRIGGER:
 460                 g_debug("cli: received SR_DF_TRIGGER");
 461                 if (o->format->event)
 462                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 463                                          &output_len);
 464                 triggered = 1;
 465                 break;
 466
 467         case SR_DF_META_LOGIC:
 468                 g_message("cli: Received SR_DF_META_LOGIC");
 469                 meta_logic = packet->payload;
 470                 num_enabled_probes = 0;
 471                 for (i = 0; i < meta_logic->num_probes; i++) {
 472                         probe = g_slist_nth_data(dev->probes, i);
 473                         if (probe->enabled)
 474                                 logic_probelist[num_enabled_probes++] = probe->index;
 475                 }
 476                 /* How many bytes we need to store num_enabled_probes bits */
 477                 unitsize = (num_enabled_probes + 7) / 8;
 478
 479                 outfile = stdout;
 480                 if (opt_output_file) {
 481                         if (default_output_format) {
 482                                 /* output file is in session format, which means we'll
 483                                  * dump everything in the datastore as it comes in,
 484                                  * and save from there after the session. */
 485                                 outfile = NULL;
 486                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
 487                                 if (ret != SR_OK) {
 488                                         printf("Failed to create datastore.\n");
 489                                         exit(1);
 490                                 }
 491                         } else {
 492                                 /* saving to a file in whatever format was set
 493                                  * with --format, so all we need is a filehandle */
 494                                 outfile = g_fopen(opt_output_file, "wb");
 495                         }
 496                 }
 497                 if (opt_pds)
 498                         srd_session_start(num_enabled_probes, unitsize,
 499                                         meta_logic->samplerate);
 500                 break;
 501
 502         case SR_DF_LOGIC:
 503                 logic = packet->payload;
 504                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 505                 sample_size = logic->unitsize;
 506                 if (logic->length == 0)
 507                         break;
 508
 509                 /* Don't store any samples until triggered. */
 510                 if (opt_wait_trigger && !triggered)
 511                         break;
 512
 513                 if (limit_samples && received_samples >= limit_samples)
 514                         break;
 515
 516                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 517                                            logic->data, logic->length,
 518                                            &filter_out, &filter_out_len);
 519                 if (ret != SR_OK)
 520                         break;
 521
 522                 /* what comes out of the filter is guaranteed to be packed into the
 523                  * minimum size needed to support the number of samples at this sample
 524                  * size. however, the driver may have submitted too much -- cut off
 525                  * the buffer of the last packet according to the sample limit.
 526                  */
 527                 if (limit_samples && (received_samples + logic->length / sample_size >
 528                                 limit_samples * sample_size))
 529                         filter_out_len = limit_samples * sample_size - received_samples;
 530
 531                 if (dev->datastore)
 532                         sr_datastore_put(dev->datastore, filter_out,
 533                                          filter_out_len, sample_size, logic_probelist);
 534
 535                 if (opt_output_file && default_output_format)
 536                         /* saving to a session file, don't need to do anything else
 537                          * to this data for now. */
 538                         goto cleanup;
 539
 540                 if (opt_pds) {
 541                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
 542                                         filter_out_len) != SRD_OK)
 543                                 sr_session_halt();
 544                 } else {
 545                         output_len = 0;
 546                         if (o->format->data && packet->type == o->format->df_type)
 547                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 548                         if (output_len) {
 549                                 fwrite(output_buf, 1, output_len, outfile);
 550                                 g_free(output_buf);
 551                         }
 552                 }
 553
 554                 cleanup:
 555                 g_free(filter_out);
 556                 received_samples += logic->length / sample_size;
 557                 break;
 558
 559         case SR_DF_META_ANALOG:
 560                 g_message("cli: Received SR_DF_META_ANALOG");
 561                 meta_analog = packet->payload;
 562                 num_analog_probes = meta_analog->num_probes;
 563                 num_enabled_analog_probes = 0;
 564                 for (i = 0; i < num_analog_probes; i++) {
 565                         probe = g_slist_nth_data(dev->probes, i);
 566                         if (probe->enabled)
 567                                 analog_probelist[num_enabled_analog_probes++] = probe;
 568                 }
 569
 570                 outfile = stdout;
 571                 if (opt_output_file) {
 572                         if (default_output_format) {
 573                                 /* output file is in session format, which means we'll
 574                                  * dump everything in the datastore as it comes in,
 575                                  * and save from there after the session. */
 576                                 outfile = NULL;
 577                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
 578                                 if (ret != SR_OK) {
 579                                         printf("Failed to create datastore.\n");
 580                                         exit(1);
 581                                 }
 582                         } else {
 583                                 /* saving to a file in whatever format was set
 584                                  * with --format, so all we need is a filehandle */
 585                                 outfile = g_fopen(opt_output_file, "wb");
 586                         }
 587                 }
 588 //              if (opt_pds)
 589 //                      srd_session_start(num_enabled_probes, unitsize,
 590 //                                      meta_logic->samplerate);
 591                 break;
 592
 593         case SR_DF_ANALOG:
 594                 analog = packet->payload;
 595                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 596                 if (analog->num_samples == 0)
 597                         break;
 598
 599                 if (limit_samples && received_samples >= limit_samples)
 600                         break;
 601
 602                 data_offset = 0;
 603                 for (i = 0; i < analog->num_samples; i++) {
 604                         for (j = 0; j < num_enabled_analog_probes; j++) {
 605                                 asample = analog->data[data_offset++];
 606                                 printf("%s: %f\n", analog_probelist[j]->name, asample);
 607                         }
 608 //                      asample1 = asample2 = 0.0;
 609 //                      asample1 = analog->data[data_offset++];
 610 //                      asample2 = analog->data[i * num_analog_probes + 1];
 611 //                      printf("%d\t%f\t%f\n", received_samples+i+1, asample1, asample2);
 612                 }
 613
 614 //              output_len = 0;
 615 //              if (o->format->data && packet->type == o->format->df_type)
 616 //                      o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 617
 618                 received_samples += analog->num_samples;
 619                 break;
 620
 621         case SR_DF_FRAME_BEGIN:
 622                 /* TODO */
 623                 printf("BEGIN\n");
 624                 break;
 625
 626         case SR_DF_FRAME_END:
 627                 /* TODO */
 628                 printf("END\n");
 629                 break;
 630
 631         default:
 632                 g_message("received unknown packet type %d", packet->type);
 633         }
 634
 635 }
 636
 637 /* Register the given PDs for this session.
 638  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 639  * That will instantiate two SPI decoders on the clock but different data
 640  * lines.
 641  */
 642 static int register_pds(struct sr_dev *dev, const char *pdstring)
 643 {
 644         GHashTable *pd_opthash;
 645         struct srd_decoder_inst *di;
 646         int ret;
 647         char **pdtokens, **pdtok, *pd_name;
 648
 649         /* Avoid compiler warnings. */
 650         (void)dev;
 651
 652         ret = 0;
 653         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
 654                         g_free, NULL);
 655         pd_name = NULL;
 656         pd_opthash = NULL;
 657         pdtokens = g_strsplit(pdstring, ",", 0);
 658         for (pdtok = pdtokens; *pdtok; pdtok++) {
 659                 if (!(pd_opthash = parse_generic_arg(*pdtok))) {
 660                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
 661                         goto err_out;
 662                 }
 663
 664                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 665                 g_hash_table_remove(pd_opthash, "sigrok_key");
 666                 if (srd_decoder_load(pd_name) != SRD_OK) {
 667                         g_critical("Failed to load protocol decoder %s.", pd_name);
 668                         ret = 1;
 669                         goto err_out;
 670                 }
 671                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 672                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
 673                         ret = 1;
 674                         goto err_out;
 675                 }
 676
 677                 /* If no annotation list was specified, add them all in now.
 678                  * This will be pared down later to leave only the last PD
 679                  * in the stack.
 680                  */
 681                 if (!opt_pd_annotations)
 682                         g_hash_table_insert(pd_ann_visible,
 683                                             g_strdup(di->inst_id), NULL);
 684
 685                 /* Any keys left in the options hash are probes, where the key
 686                  * is the probe name as specified in the decoder class, and the
 687                  * value is the probe number i.e. the order in which the PD's
 688                  * incoming samples are arranged. */
 689                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
 690                         ret = 1;
 691                         goto err_out;
 692                 }
 693                 g_hash_table_destroy(pd_opthash);
 694                 pd_opthash = NULL;
 695         }
 696
 697 err_out:
 698         g_strfreev(pdtokens);
 699         if (pd_opthash)
 700                 g_hash_table_destroy(pd_opthash);
 701         if (pd_name)
 702                 g_free(pd_name);
 703
 704         return ret;
 705 }
 706
 707 int setup_pd_stack(void)
 708 {
 709         struct srd_decoder_inst *di_from, *di_to;
 710         int ret, i;
 711         char **pds;
 712
 713         /* Set up the protocol decoder stack. */
 714         pds = g_strsplit(opt_pds, ",", 0);
 715         if (g_strv_length(pds) > 1) {
 716                 if (opt_pd_stack) {
 717                         /* A stack setup was specified, use that. */
 718                         g_strfreev(pds);
 719                         pds = g_strsplit(opt_pd_stack, ",", 0);
 720                         if (g_strv_length(pds) < 2) {
 721                                 g_strfreev(pds);
 722                                 g_critical("Specify at least two protocol decoders to stack.");
 723                                 return 1;
 724                         }
 725                 }
 726
 727                 if (!(di_from = srd_inst_find_by_id(pds[0]))) {
 728                         g_critical("Cannot stack protocol decoder '%s': "
 729                                         "instance not found.", pds[0]);
 730                         return 1;
 731                 }
 732                 for (i = 1; pds[i]; i++) {
 733                         if (!(di_to = srd_inst_find_by_id(pds[i]))) {
 734                                 g_critical("Cannot stack protocol decoder '%s': "
 735                                                 "instance not found.", pds[i]);
 736                                 return 1;
 737                         }
 738                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
 739                                 return 1;
 740
 741                         /* Don't show annotation from this PD. Only the last PD in
 742                          * the stack will be left on the annotation list (unless
 743                          * the annotation list was specifically provided).
 744                          */
 745                         if (!opt_pd_annotations)
 746                                 g_hash_table_remove(pd_ann_visible,
 747                                                     di_from->inst_id);
 748
 749                         di_from = di_to;
 750                 }
 751         }
 752         g_strfreev(pds);
 753
 754         return 0;
 755 }
 756
 757 int setup_pd_annotations(void)
 758 {
 759         GSList *l;
 760         struct srd_decoder *dec;
 761         int ann;
 762         char **pds, **pdtok, **keyval, **ann_descr;
 763
 764         /* Set up custom list of PDs and annotations to show. */
 765         if (opt_pd_annotations) {
 766                 pds = g_strsplit(opt_pd_annotations, ",", 0);
 767                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
 768                         ann = 0;
 769                         keyval = g_strsplit(*pdtok, "=", 0);
 770                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
 771                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
 772                                 return 1;
 773                         }
 774                         if (!dec->annotations) {
 775                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
 776                                 return 1;
 777                         }
 778                         if (g_strv_length(keyval) == 2) {
 779                                 for (l = dec->annotations; l; l = l->next, ann++) {
 780                                         ann_descr = l->data;
 781                                         if (!canon_cmp(ann_descr[0], keyval[1]))
 782                                                 /* Found it. */
 783                                                 break;
 784                                 }
 785                                 if (!l) {
 786                                         g_critical("Annotation '%s' not found "
 787                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
 788                                         return 1;
 789                                 }
 790                         }
 791                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
 792                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
 793                         g_strfreev(keyval);
 794                 }
 795                 g_strfreev(pds);
 796         }
 797
 798         return 0;
 799 }
 800
 801 int setup_output_format(void)
 802 {
 803         GHashTable *fmtargs;
 804         GHashTableIter iter;
 805         gpointer key, value;
 806         struct sr_output_format **outputs;
 807         int i;
 808         char *fmtspec;
 809
 810         if (!opt_output_format) {
 811                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
 812                 /* we'll need to remember this so when saving to a file
 813                  * later, sigrok session format will be used.
 814                  */
 815                 default_output_format = TRUE;
 816         }
 817         fmtargs = parse_generic_arg(opt_output_format);
 818         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
 819         if (!fmtspec) {
 820                 g_critical("Invalid output format.");
 821                 return 1;
 822         }
 823         outputs = sr_output_list();
 824         for (i = 0; outputs[i]; i++) {
 825                 if (strcmp(outputs[i]->id, fmtspec))
 826                         continue;
 827                 g_hash_table_remove(fmtargs, "sigrok_key");
 828                 output_format = outputs[i];
 829                 g_hash_table_iter_init(&iter, fmtargs);
 830                 while (g_hash_table_iter_next(&iter, &key, &value)) {
 831                         /* only supporting one parameter per output module
 832                          * for now, and only its value */
 833                         output_format_param = g_strdup(value);
 834                         break;
 835                 }
 836                 break;
 837         }
 838         if (!output_format) {
 839                 g_critical("Invalid output format %s.", opt_output_format);
 840                 return 1;
 841         }
 842         g_hash_table_destroy(fmtargs);
 843
 844         return 0;
 845 }
 846
 847 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
 848 {
 849         int i;
 850         char **annotations;
 851         gpointer ann_format;
 852
 853         /* 'cb_data' is not used in this specific callback. */
 854         (void)cb_data;
 855
 856         if (!pd_ann_visible)
 857                 return;
 858
 859         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
 860                         NULL, &ann_format))
 861                 /* Not in the list of PDs whose annotations we're showing. */
 862                 return;
 863
 864         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
 865                 /* We don't want this particular format from the PD. */
 866                 return;
 867
 868         annotations = pdata->data;
 869         if (opt_loglevel > SR_LOG_WARN)
 870                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
 871         printf("%s: ", pdata->pdo->proto_id);
 872         for (i = 0; annotations[i]; i++)
 873                 printf("\"%s\" ", annotations[i]);
 874         printf("\n");
 875 }
 876
 877 static int select_probes(struct sr_dev *dev)
 878 {
 879         struct sr_probe *probe;
 880         char **probelist;
 881         int max_probes, i;
 882
 883         if (!opt_probes)
 884                 return SR_OK;
 885
 886         /*
 887          * This only works because a device by default initializes
 888          * and enables all its probes.
 889          */
 890         max_probes = g_slist_length(dev->probes);
 891         probelist = parse_probestring(max_probes, opt_probes);
 892         if (!probelist) {
 893                 return SR_ERR;
 894         }
 895
 896         for (i = 0; i < max_probes; i++) {
 897                 if (probelist[i]) {
 898                         sr_dev_probe_name_set(dev, i + 1, probelist[i]);
 899                         g_free(probelist[i]);
 900                 } else {
 901                         probe = sr_dev_probe_find(dev, i + 1);
 902                         probe->enabled = FALSE;
 903                 }
 904         }
 905         g_free(probelist);
 906
 907         return SR_OK;
 908 }
 909
 910 /**
 911  * Return the input file format which the CLI tool should use.
 912  *
 913  * If the user specified -I / --input-format, use that one. Otherwise, try to
 914  * autodetect the format as good as possible. Failing that, return NULL.
 915  *
 916  * @param filename The filename of the input file. Must not be NULL.
 917  * @param opt The -I / --input-file option the user specified (or NULL).
 918  *
 919  * @return A pointer to the 'struct sr_input_format' that should be used,
 920  *         or NULL if no input format was selected or auto-detected.
 921  */
 922 static struct sr_input_format *determine_input_file_format(
 923                         const char *filename, const char *opt)
 924 {
 925         int i;
 926         struct sr_input_format **inputs;
 927
 928         /* If there are no input formats, return NULL right away. */
 929         inputs = sr_input_list();
 930         if (!inputs) {
 931                 g_critical("No supported input formats available.");
 932                 return NULL;
 933         }
 934
 935         /* If the user specified -I / --input-format, use that one. */
 936         if (opt) {
 937                 for (i = 0; inputs[i]; i++) {
 938                         if (strcasecmp(inputs[i]->id, opt_input_format))
 939                                 continue;
 940                         g_debug("Using user-specified input file format '%s'.",
 941                                         inputs[i]->id);
 942                         return inputs[i];
 943                 }
 944
 945                 /* The user specified an unknown input format, return NULL. */
 946                 g_critical("Error: specified input file format '%s' is "
 947                         "unknown.", opt_input_format);
 948                 return NULL;
 949         }
 950
 951         /* Otherwise, try to find an input module that can handle this file. */
 952         for (i = 0; inputs[i]; i++) {
 953                 if (inputs[i]->format_match(filename))
 954                         break;
 955         }
 956
 957         /* Return NULL if no input module wanted to touch this. */
 958         if (!inputs[i]) {
 959                 g_critical("Error: no matching input module found.");
 960                 return NULL;
 961         }
 962
 963         g_debug("cli: Autodetected '%s' input format for file '%s'.",
 964                 inputs[i]->id, filename);
 965
 966         return inputs[i];
 967 }
 968
 969 static void load_input_file_format(void)
 970 {
 971         struct stat st;
 972         struct sr_input *in;
 973         struct sr_input_format *input_format;
 974
 975         if (!(input_format = determine_input_file_format(opt_input_file,
 976                                                    opt_input_format)))
 977                 /* The exact cause was already logged. */
 978                 return;
 979
 980         if (stat(opt_input_file, &st) == -1) {
 981                 g_critical("Failed to load %s: %s", opt_input_file,
 982                         strerror(errno));
 983                 exit(1);
 984         }
 985
 986         /* Initialize the input module. */
 987         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
 988                 g_critical("Failed to allocate input module.");
 989                 exit(1);
 990         }
 991         in->format = input_format;
 992         in->param = input_format_param;
 993         if (in->format->init) {
 994                 if (in->format->init(in) != SR_OK) {
 995                         g_critical("Input format init failed.");
 996                         exit(1);
 997                 }
 998         }
 999
1000         if (select_probes(in->vdev) > 0)
1001             return;
1002
1003         sr_session_new();
1004         sr_session_datafeed_callback_add(datafeed_in);
1005         if (sr_session_dev_add(in->vdev) != SR_OK) {
1006                 g_critical("Failed to use device.");
1007                 sr_session_destroy();
1008                 return;
1009         }
1010
1011         input_format->loadfile(in, opt_input_file);
1012         if (opt_output_file && default_output_format) {
1013                 if (sr_session_save(opt_output_file) != SR_OK)
1014                         g_critical("Failed to save session.");
1015         }
1016         sr_session_destroy();
1017 }
1018
1019 static void load_input_file(void)
1020 {
1021
1022         if (sr_session_load(opt_input_file) == SR_OK) {
1023                 /* sigrok session file */
1024                 sr_session_datafeed_callback_add(datafeed_in);
1025                 sr_session_start();
1026                 sr_session_run();
1027                 sr_session_stop();
1028         }
1029         else {
1030                 /* fall back on input modules */
1031                 load_input_file_format();
1032         }
1033 }
1034
1035 int num_real_devs(void)
1036 {
1037         struct sr_dev *dev;
1038         GSList *devs, *l;
1039         int num_devs;
1040
1041         num_devs = 0;
1042         devs = sr_dev_list();
1043         for (l = devs; l; l = l->next) {
1044                 dev = l->data;
1045                 if (!sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV))
1046                         num_devs++;
1047         }
1048
1049         return num_devs;
1050 }
1051
1052 static int set_dev_options(struct sr_dev *dev, GHashTable *args)
1053 {
1054         GHashTableIter iter;
1055         gpointer key, value;
1056         int ret, i;
1057         float tmp_float;
1058         uint64_t tmp_u64;
1059         struct sr_rational tmp_rat;
1060         gboolean tmp_bool;
1061         gboolean found;
1062
1063         g_hash_table_iter_init(&iter, args);
1064         while (g_hash_table_iter_next(&iter, &key, &value)) {
1065                 found = FALSE;
1066                 for (i = 0; sr_hwcap_options[i].hwcap; i++) {
1067                         if (strcmp(sr_hwcap_options[i].shortname, key))
1068                                 continue;
1069                         if ((value == NULL) &&
1070                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
1071                                 g_critical("Option '%s' needs a value.", (char *)key);
1072                                 return SR_ERR;
1073                         }
1074                         found = TRUE;
1075                         switch (sr_hwcap_options[i].type) {
1076                         case SR_T_UINT64:
1077                                 ret = sr_parse_sizestring(value, &tmp_u64);
1078                                 if (ret != SR_OK)
1079                                         break;
1080                                 ret = dev->driver->dev_config_set(dev->driver_index,
1081                                         sr_hwcap_options[i].hwcap, &tmp_u64);
1082                                 break;
1083                         case SR_T_CHAR:
1084                                 ret = dev->driver->dev_config_set(dev->driver_index,
1085                                         sr_hwcap_options[i].hwcap, value);
1086                                 break;
1087                         case SR_T_BOOL:
1088                                 if (!value)
1089                                         tmp_bool = TRUE;
1090                                 else
1091                                         tmp_bool = sr_parse_boolstring(value);
1092                                 ret = dev->driver->dev_config_set(dev->driver_index,
1093                                                 sr_hwcap_options[i].hwcap,
1094                                                 GINT_TO_POINTER(tmp_bool));
1095                                 break;
1096                         case SR_T_FLOAT:
1097                                 tmp_float = strtof(value, NULL);
1098                                 ret = dev->driver->dev_config_set(dev->driver_index,
1099                                                 sr_hwcap_options[i].hwcap, &tmp_float);
1100                                 break;
1101                         case SR_T_RATIONAL:
1102                                 if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1103                                         break;
1104                                 ret = dev->driver->dev_config_set(dev->driver_index,
1105                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1106                                 break;
1107                         default:
1108                                 ret = SR_ERR;
1109                         }
1110
1111                         if (ret != SR_OK) {
1112                                 g_critical("Failed to set device option '%s'.", (char *)key);
1113                                 return ret;
1114                         }
1115                         else
1116                                 break;
1117                 }
1118                 if (!found) {
1119                         g_critical("Unknown device option '%s'.", (char *) key);
1120                         return SR_ERR;
1121                 }
1122         }
1123
1124         return SR_OK;
1125 }
1126
1127 static void run_session(void)
1128 {
1129         struct sr_dev *dev;
1130         GHashTable *devargs;
1131         int num_devs, max_probes, i;
1132         uint64_t time_msec;
1133         char **probelist, *devspec;
1134
1135         devargs = NULL;
1136         if (opt_dev) {
1137                 devargs = parse_generic_arg(opt_dev);
1138                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
1139                 dev = parse_devstring(devspec);
1140                 if (!dev) {
1141                         g_critical("Device not found.");
1142                         return;
1143                 }
1144                 g_hash_table_remove(devargs, "sigrok_key");
1145         } else {
1146                 num_devs = num_real_devs();
1147                 if (num_devs == 1) {
1148                         /* No device specified, but there is only one. */
1149                         devargs = NULL;
1150                         dev = parse_devstring("0");
1151                 } else if (num_devs == 0) {
1152                         g_critical("No devices found.");
1153                         return;
1154                 } else {
1155                         g_critical("%d devices found, please select one.", num_devs);
1156                         return;
1157                 }
1158         }
1159
1160         sr_session_new();
1161         sr_session_datafeed_callback_add(datafeed_in);
1162
1163         if (sr_session_dev_add(dev) != SR_OK) {
1164                 g_critical("Failed to use device.");
1165                 sr_session_destroy();
1166                 return;
1167         }
1168
1169         if (devargs) {
1170                 if (set_dev_options(dev, devargs) != SR_OK) {
1171                         sr_session_destroy();
1172                         return;
1173                 }
1174                 g_hash_table_destroy(devargs);
1175         }
1176
1177         if (select_probes(dev) != SR_OK)
1178             return;
1179
1180         if (opt_continuous) {
1181                 if (!sr_driver_hwcap_exists(dev->driver, SR_HWCAP_CONTINUOUS)) {
1182                         g_critical("This device does not support continuous sampling.");
1183                         sr_session_destroy();
1184                         return;
1185                 }
1186         }
1187
1188         if (opt_triggers) {
1189                 probelist = sr_parse_triggerstring(dev, opt_triggers);
1190                 if (!probelist) {
1191                         sr_session_destroy();
1192                         return;
1193                 }
1194
1195                 max_probes = g_slist_length(dev->probes);
1196                 for (i = 0; i < max_probes; i++) {
1197                         if (probelist[i]) {
1198                                 sr_dev_trigger_set(dev, i + 1, probelist[i]);
1199                                 g_free(probelist[i]);
1200                         }
1201                 }
1202                 g_free(probelist);
1203         }
1204
1205         if (opt_time) {
1206                 time_msec = sr_parse_timestring(opt_time);
1207                 if (time_msec == 0) {
1208                         g_critical("Invalid time '%s'", opt_time);
1209                         sr_session_destroy();
1210                         return;
1211                 }
1212
1213                 if (sr_driver_hwcap_exists(dev->driver, SR_HWCAP_LIMIT_MSEC)) {
1214                         if (dev->driver->dev_config_set(dev->driver_index,
1215                             SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1216                                 g_critical("Failed to configure time limit.");
1217                                 sr_session_destroy();
1218                                 return;
1219                         }
1220                 }
1221                 else {
1222                         /* time limit set, but device doesn't support this...
1223                          * convert to samples based on the samplerate.
1224                          */
1225                         limit_samples = 0;
1226                         if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
1227                                 const uint64_t *samplerate;
1228
1229                                 sr_dev_info_get(dev, SR_DI_CUR_SAMPLERATE,
1230                                                 (const void **)&samplerate);
1231                                 limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1232                         }
1233                         if (limit_samples == 0) {
1234                                 g_critical("Not enough time at this samplerate.");
1235                                 sr_session_destroy();
1236                                 return;
1237                         }
1238
1239                         if (dev->driver->dev_config_set(dev->driver_index,
1240                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
1241                                 g_critical("Failed to configure time-based sample limit.");
1242                                 sr_session_destroy();
1243                                 return;
1244                         }
1245                 }
1246         }
1247
1248         if (opt_samples) {
1249                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1250                         || (dev->driver->dev_config_set(dev->driver_index,
1251                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
1252                         g_critical("Failed to configure sample limit.");
1253                         sr_session_destroy();
1254                         return;
1255                 }
1256         }
1257
1258         if (opt_frames) {
1259                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1260                         || (dev->driver->dev_config_set(dev->driver_index,
1261                             SR_HWCAP_LIMIT_FRAMES, &limit_frames) != SR_OK)) {
1262                         printf("Failed to configure frame limit.\n");
1263                         sr_session_destroy();
1264                         return;
1265                 }
1266         }
1267
1268         if (dev->driver->dev_config_set(dev->driver_index,
1269                   SR_HWCAP_PROBECONFIG, (char *)dev->probes) != SR_OK) {
1270                 g_critical("Failed to configure probes.");
1271                 sr_session_destroy();
1272                 return;
1273         }
1274
1275         if (sr_session_start() != SR_OK) {
1276                 g_critical("Failed to start session.");
1277                 sr_session_destroy();
1278                 return;
1279         }
1280
1281         if (opt_continuous)
1282                 add_anykey();
1283
1284         sr_session_run();
1285
1286         if (opt_continuous)
1287                 clear_anykey();
1288
1289         if (opt_output_file && default_output_format) {
1290                 if (sr_session_save(opt_output_file) != SR_OK)
1291                         g_critical("Failed to save session.");
1292         }
1293         sr_session_destroy();
1294 }
1295
1296 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1297                    const gchar *message, gpointer cb_data)
1298 {
1299         /* Avoid compiler warnings. */
1300         (void)log_domain;
1301         (void)cb_data;
1302
1303         /*
1304          * All messages, warnings, errors etc. go to stderr (not stdout) in
1305          * order to not mess up the CLI tool data output, e.g. VCD output.
1306          */
1307         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1308                         || opt_loglevel > SR_LOG_WARN) {
1309                 fprintf(stderr, "%s\n", message);
1310                 fflush(stderr);
1311         }
1312 }
1313
1314 int main(int argc, char **argv)
1315 {
1316         GOptionContext *context;
1317         GError *error;
1318
1319         g_log_set_default_handler(logger, NULL);
1320
1321         error = NULL;
1322         context = g_option_context_new(NULL);
1323         g_option_context_add_main_entries(context, optargs, NULL);
1324
1325         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1326                 g_critical("%s", error->message);
1327                 return 1;
1328         }
1329
1330         /* Set the loglevel (amount of messages to output) for libsigrok. */
1331         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1332                 return 1;
1333
1334         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1335         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1336                 return 1;
1337
1338         if (sr_init() != SR_OK)
1339                 return 1;
1340
1341         if (opt_pds) {
1342                 if (srd_init(NULL) != SRD_OK)
1343                         return 1;
1344                 if (register_pds(NULL, opt_pds) != 0)
1345                         return 1;
1346                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1347                                 show_pd_annotations, NULL) != SRD_OK)
1348                         return 1;
1349                 if (setup_pd_stack() != 0)
1350                         return 1;
1351                 if (setup_pd_annotations() != 0)
1352                         return 1;
1353         }
1354
1355         if (setup_output_format() != 0)
1356                 return 1;
1357
1358         if (opt_version)
1359                 show_version();
1360         else if (opt_list_devs)
1361                 show_dev_list();
1362         else if (opt_input_file)
1363                 load_input_file();
1364         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1365                 run_session();
1366         else if (opt_dev)
1367                 show_dev_detail();
1368         else if (opt_pds)
1369                 show_pd_detail();
1370         else
1371                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1372
1373         if (opt_pds)
1374                 srd_exit();
1375
1376         g_option_context_free(context);
1377         sr_exit();
1378
1379         return 0;
1380 }