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         const struct sr_hwcap_option *hwo;
 208         const struct sr_samplerates *samplerates;
 209         struct sr_rational *rationals;
 210         uint64_t *integers;
 211         const int *hwcaps;
 212         int cap, i;
 213         char *s, *title;
 214         const char *charopts, **stropts;
 215
 216         dev = parse_devstring(opt_dev);
 217         if (!dev) {
 218                 printf("No such device. Use -D to list all devices.\n");
 219                 return;
 220         }
 221
 222         print_dev_line(dev);
 223
 224         if (sr_dev_info_get(dev, SR_DI_TRIGGER_TYPES,
 225                                         (const void **)&charopts) == SR_OK) {
 226                 printf("Supported triggers: ");
 227                 while (*charopts) {
 228                         printf("%c ", *charopts);
 229                         charopts++;
 230                 }
 231                 printf("\n");
 232         }
 233
 234         title = "Supported options:\n";
 235         hwcaps = dev->driver->hwcap_get_all();
 236         for (cap = 0; hwcaps[cap]; cap++) {
 237                 if (!(hwo = sr_hw_hwcap_get(hwcaps[cap])))
 238                         continue;
 239
 240                 if (title) {
 241                         printf("%s", title);
 242                         title = NULL;
 243                 }
 244
 245                 if (hwo->hwcap == SR_HWCAP_PATTERN_MODE) {
 246                         /* Pattern generator modes */
 247                         printf("    %s", hwo->shortname);
 248                         if (sr_dev_info_get(dev, SR_DI_PATTERNS,
 249                                         (const void **)&stropts) == SR_OK) {
 250                                 printf(" - supported patterns:\n");
 251                                 for (i = 0; stropts[i]; i++)
 252                                         printf("      %s\n", stropts[i]);
 253                         } else {
 254                                 printf("\n");
 255                         }
 256
 257                 } else if (hwo->hwcap == SR_HWCAP_SAMPLERATE) {
 258                         /* Supported samplerates */
 259                         printf("    %s", hwo->shortname);
 260                         if (sr_dev_info_get(dev, SR_DI_SAMPLERATES,
 261                                         (const void **)&samplerates) != SR_OK) {
 262                                 printf("\n");
 263                                 continue;
 264                         }
 265                         if (samplerates->step) {
 266                                 /* low */
 267                                 if (!(s = sr_samplerate_string(samplerates->low)))
 268                                         continue;
 269                                 printf(" (%s", s);
 270                                 g_free(s);
 271                                 /* high */
 272                                 if (!(s = sr_samplerate_string(samplerates->high)))
 273                                         continue;
 274                                 printf(" - %s", s);
 275                                 g_free(s);
 276                                 /* step */
 277                                 if (!(s = sr_samplerate_string(samplerates->step)))
 278                                         continue;
 279                                 printf(" in steps of %s)\n", s);
 280                                 g_free(s);
 281                         } else {
 282                                 printf(" - supported samplerates:\n");
 283                                 for (i = 0; samplerates->list[i]; i++)
 284                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
 285                         }
 286
 287                 } else if (hwo->hwcap == SR_HWCAP_BUFFERSIZE) {
 288                         /* Supported buffer sizes */
 289                         printf("    %s", hwo->shortname);
 290                         if (sr_dev_info_get(dev, SR_DI_BUFFERSIZES,
 291                                         (const void **)&integers) != SR_OK) {
 292                                 printf("\n");
 293                                 continue;
 294                         }
 295                         printf(" - supported buffer sizes:\n");
 296                         for (i = 0; integers[i]; i++)
 297                                 printf("      %"PRIu64"\n", integers[i]);
 298
 299                 } else if (hwo->hwcap == SR_HWCAP_TIMEBASE) {
 300                         /* Supported time bases */
 301                         printf("    %s", hwo->shortname);
 302                         if (sr_dev_info_get(dev, SR_DI_TIMEBASES,
 303                                         (const void **)&rationals) != SR_OK) {
 304                                 printf("\n");
 305                                 continue;
 306                         }
 307                         printf(" - supported time bases:\n");
 308                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 309                                 printf("      %s\n", sr_period_string(
 310                                                 rationals[i].p * rationals[i].q));
 311
 312                 } else if (hwo->hwcap == SR_HWCAP_TRIGGER_SOURCE) {
 313                         /* Supported trigger sources */
 314                         printf("    %s", hwo->shortname);
 315                         if (sr_dev_info_get(dev, SR_DI_TRIGGER_SOURCES,
 316                                         (const void **)&stropts) != SR_OK) {
 317                                 printf("\n");
 318                                 continue;
 319                         }
 320                         printf(" - supported trigger sources:\n");
 321                         for (i = 0; stropts[i]; i++)
 322                                 printf("      %s\n", stropts[i]);
 323
 324                 } else if (hwo->hwcap == SR_HWCAP_FILTER) {
 325                         /* Supported trigger sources */
 326                         printf("    %s", hwo->shortname);
 327                         if (sr_dev_info_get(dev, SR_DI_FILTERS,
 328                                         (const void **)&stropts) != SR_OK) {
 329                                 printf("\n");
 330                                 continue;
 331                         }
 332                         printf(" - supported filter targets:\n");
 333                         for (i = 0; stropts[i]; i++)
 334                                 printf("      %s\n", stropts[i]);
 335
 336                 } else if (hwo->hwcap == SR_HWCAP_VDIV) {
 337                         /* Supported volts/div values */
 338                         printf("    %s", hwo->shortname);
 339                         if (sr_dev_info_get(dev, SR_DI_VDIVS,
 340                                         (const void **)&rationals) != SR_OK) {
 341                                 printf("\n");
 342                                 continue;
 343                         }
 344                         printf(" - supported volts/div:\n");
 345                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 346                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
 347
 348                 } else if (hwo->hwcap == SR_HWCAP_COUPLING) {
 349                         /* Supported coupling settings */
 350                         printf("    %s", hwo->shortname);
 351                         if (sr_dev_info_get(dev, SR_DI_COUPLING,
 352                                         (const void **)&stropts) != SR_OK) {
 353                                 printf("\n");
 354                                 continue;
 355                         }
 356                         printf(" - supported coupling options:\n");
 357                         for (i = 0; stropts[i]; i++)
 358                                 printf("      %s\n", stropts[i]);
 359
 360                 } else {
 361                         /* Everything else */
 362                         printf("    %s\n", hwo->shortname);
 363                 }
 364         }
 365 }
 366
 367 static void show_pd_detail(void)
 368 {
 369         GSList *l;
 370         struct srd_decoder *dec;
 371         char **pdtokens, **pdtok, **ann, *doc;
 372         struct srd_probe *p;
 373
 374         pdtokens = g_strsplit(opt_pds, ",", -1);
 375         for (pdtok = pdtokens; *pdtok; pdtok++) {
 376                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 377                         printf("Protocol decoder %s not found.\n", *pdtok);
 378                         return;
 379                 }
 380                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 381                                 dec->id, dec->name, dec->longname, dec->desc);
 382                 printf("License: %s\n", dec->license);
 383                 printf("Annotations:\n");
 384                 if (dec->annotations) {
 385                         for (l = dec->annotations; l; l = l->next) {
 386                                 ann = l->data;
 387                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 388                         }
 389                 } else {
 390                         printf("None.\n");
 391                 }
 392                 /* TODO: Print supported decoder options. */
 393                 printf("Required probes:\n");
 394                 if (dec->probes) {
 395                         for (l = dec->probes; l; l = l->next) {
 396                                 p = l->data;
 397                                 printf("- %s (%s): %s\n",
 398                                        p->name, p->id, p->desc);
 399                         }
 400                 } else {
 401                         printf("None.\n");
 402                 }
 403                 printf("Optional probes:\n");
 404                 if (dec->opt_probes) {
 405                         for (l = dec->opt_probes; l; l = l->next) {
 406                                 p = l->data;
 407                                 printf("- %s (%s): %s\n",
 408                                        p->name, p->id, p->desc);
 409                         }
 410                 } else {
 411                         printf("None.\n");
 412                 }
 413                 if ((doc = srd_decoder_doc_get(dec))) {
 414                         printf("Documentation:\n%s\n",
 415                                doc[0] == '\n' ? doc + 1 : doc);
 416                         g_free(doc);
 417                 }
 418         }
 419
 420         g_strfreev(pdtokens);
 421 }
 422
 423 static void datafeed_in(struct sr_dev *dev, struct sr_datafeed_packet *packet)
 424 {
 425         static struct sr_output *o = NULL;
 426         static int logic_probelist[SR_MAX_NUM_PROBES] = { 0 };
 427         static struct sr_probe *analog_probelist[SR_MAX_NUM_PROBES];
 428         static uint64_t received_samples = 0;
 429         static int unitsize = 0;
 430         static int triggered = 0;
 431         static FILE *outfile = NULL;
 432         static int num_analog_probes = 0;
 433         struct sr_probe *probe;
 434         struct sr_datafeed_logic *logic;
 435         struct sr_datafeed_meta_logic *meta_logic;
 436         struct sr_datafeed_analog *analog;
 437         struct sr_datafeed_meta_analog *meta_analog;
 438         static int num_enabled_analog_probes = 0;
 439         int num_enabled_probes, sample_size, ret, i;
 440         uint64_t output_len, filter_out_len;
 441         uint8_t *output_buf, *filter_out;
 442
 443         /* If the first packet to come in isn't a header, don't even try. */
 444         if (packet->type != SR_DF_HEADER && o == NULL)
 445                 return;
 446
 447         sample_size = -1;
 448         switch (packet->type) {
 449         case SR_DF_HEADER:
 450                 g_debug("cli: Received SR_DF_HEADER");
 451                 /* Initialize the output module. */
 452                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 453                         g_critical("Output module malloc failed.");
 454                         exit(1);
 455                 }
 456                 o->format = output_format;
 457                 o->dev = dev;
 458                 o->param = output_format_param;
 459                 if (o->format->init) {
 460                         if (o->format->init(o) != SR_OK) {
 461                                 g_critical("Output format initialization failed.");
 462                                 exit(1);
 463                         }
 464                 }
 465                 break;
 466
 467         case SR_DF_END:
 468                 g_debug("cli: Received SR_DF_END");
 469                 if (!o) {
 470                         g_debug("cli: double end!");
 471                         break;
 472                 }
 473                 if (o->format->event) {
 474                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 475                         if (output_buf) {
 476                                 if (outfile)
 477                                         fwrite(output_buf, 1, output_len, outfile);
 478                                 g_free(output_buf);
 479                                 output_len = 0;
 480                         }
 481                 }
 482                 if (limit_samples && received_samples < limit_samples)
 483                         g_warning("Device only sent %" PRIu64 " samples.",
 484                                received_samples);
 485                 if (opt_continuous)
 486                         g_warning("Device stopped after %" PRIu64 " samples.",
 487                                received_samples);
 488                 sr_session_halt();
 489                 if (outfile && outfile != stdout)
 490                         fclose(outfile);
 491                 g_free(o);
 492                 o = NULL;
 493                 break;
 494
 495         case SR_DF_TRIGGER:
 496                 g_debug("cli: received SR_DF_TRIGGER");
 497                 if (o->format->event)
 498                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 499                                          &output_len);
 500                 triggered = 1;
 501                 break;
 502
 503         case SR_DF_META_LOGIC:
 504                 g_message("cli: Received SR_DF_META_LOGIC");
 505                 meta_logic = packet->payload;
 506                 num_enabled_probes = 0;
 507                 for (i = 0; i < meta_logic->num_probes; i++) {
 508                         probe = g_slist_nth_data(dev->probes, i);
 509                         if (probe->enabled)
 510                                 logic_probelist[num_enabled_probes++] = probe->index;
 511                 }
 512                 /* How many bytes we need to store num_enabled_probes bits */
 513                 unitsize = (num_enabled_probes + 7) / 8;
 514
 515                 outfile = stdout;
 516                 if (opt_output_file) {
 517                         if (default_output_format) {
 518                                 /* output file is in session format, which means we'll
 519                                  * dump everything in the datastore as it comes in,
 520                                  * and save from there after the session. */
 521                                 outfile = NULL;
 522                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
 523                                 if (ret != SR_OK) {
 524                                         printf("Failed to create datastore.\n");
 525                                         exit(1);
 526                                 }
 527                         } else {
 528                                 /* saving to a file in whatever format was set
 529                                  * with --format, so all we need is a filehandle */
 530                                 outfile = g_fopen(opt_output_file, "wb");
 531                         }
 532                 }
 533                 if (opt_pds)
 534                         srd_session_start(num_enabled_probes, unitsize,
 535                                         meta_logic->samplerate);
 536                 break;
 537
 538         case SR_DF_LOGIC:
 539                 logic = packet->payload;
 540                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 541                 sample_size = logic->unitsize;
 542                 if (logic->length == 0)
 543                         break;
 544
 545                 /* Don't store any samples until triggered. */
 546                 if (opt_wait_trigger && !triggered)
 547                         break;
 548
 549                 if (limit_samples && received_samples >= limit_samples)
 550                         break;
 551
 552                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 553                                            logic->data, logic->length,
 554                                            &filter_out, &filter_out_len);
 555                 if (ret != SR_OK)
 556                         break;
 557
 558                 /* what comes out of the filter is guaranteed to be packed into the
 559                  * minimum size needed to support the number of samples at this sample
 560                  * size. however, the driver may have submitted too much -- cut off
 561                  * the buffer of the last packet according to the sample limit.
 562                  */
 563                 if (limit_samples && (received_samples + logic->length / sample_size >
 564                                 limit_samples * sample_size))
 565                         filter_out_len = limit_samples * sample_size - received_samples;
 566
 567                 if (dev->datastore)
 568                         sr_datastore_put(dev->datastore, filter_out,
 569                                          filter_out_len, sample_size, logic_probelist);
 570
 571                 if (opt_output_file && default_output_format)
 572                         /* saving to a session file, don't need to do anything else
 573                          * to this data for now. */
 574                         goto cleanup;
 575
 576                 if (opt_pds) {
 577                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
 578                                         filter_out_len) != SRD_OK)
 579                                 sr_session_halt();
 580                 } else {
 581                         output_len = 0;
 582                         if (o->format->data && packet->type == o->format->df_type)
 583                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 584                         if (output_buf) {
 585                                 fwrite(output_buf, 1, output_len, outfile);
 586                                 g_free(output_buf);
 587                         }
 588                 }
 589
 590                 cleanup:
 591                 g_free(filter_out);
 592                 received_samples += logic->length / sample_size;
 593                 break;
 594
 595         case SR_DF_META_ANALOG:
 596                 g_message("cli: Received SR_DF_META_ANALOG");
 597                 meta_analog = packet->payload;
 598                 num_analog_probes = meta_analog->num_probes;
 599                 num_enabled_analog_probes = 0;
 600                 for (i = 0; i < num_analog_probes; i++) {
 601                         probe = g_slist_nth_data(dev->probes, i);
 602                         if (probe->enabled)
 603                                 analog_probelist[num_enabled_analog_probes++] = probe;
 604                 }
 605
 606                 outfile = stdout;
 607                 if (opt_output_file) {
 608                         if (default_output_format) {
 609                                 /* output file is in session format, which means we'll
 610                                  * dump everything in the datastore as it comes in,
 611                                  * and save from there after the session. */
 612                                 outfile = NULL;
 613                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
 614                                 if (ret != SR_OK) {
 615                                         printf("Failed to create datastore.\n");
 616                                         exit(1);
 617                                 }
 618                         } else {
 619                                 /* saving to a file in whatever format was set
 620                                  * with --format, so all we need is a filehandle */
 621                                 outfile = g_fopen(opt_output_file, "wb");
 622                         }
 623                 }
 624                 break;
 625
 626         case SR_DF_ANALOG:
 627                 analog = packet->payload;
 628                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 629                 if (analog->num_samples == 0)
 630                         break;
 631
 632                 if (limit_samples && received_samples >= limit_samples)
 633                         break;
 634
 635                 if (o->format->data && packet->type == o->format->df_type) {
 636                         o->format->data(o, (const uint8_t *)analog->data,
 637                                         analog->num_samples * sizeof(float),
 638                                         &output_buf, &output_len);
 639                         if (output_buf) {
 640                                 fwrite(output_buf, 1, output_len, outfile);
 641                                 g_free(output_buf);
 642                         }
 643                 }
 644
 645                 received_samples += analog->num_samples;
 646                 break;
 647
 648         case SR_DF_FRAME_BEGIN:
 649                 g_debug("cli: received SR_DF_FRAME_BEGIN");
 650                 if (o->format->event) {
 651                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
 652                                          &output_len);
 653                         if (output_buf) {
 654                                 fwrite(output_buf, 1, output_len, outfile);
 655                                 g_free(output_buf);
 656                         }
 657                 }
 658                 break;
 659
 660         case SR_DF_FRAME_END:
 661                 g_debug("cli: received SR_DF_FRAME_END");
 662                 if (o->format->event) {
 663                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
 664                                          &output_len);
 665                         if (output_buf) {
 666                                 fwrite(output_buf, 1, output_len, outfile);
 667                                 g_free(output_buf);
 668                         }
 669                 }
 670                 break;
 671
 672         default:
 673                 g_message("received unknown packet type %d", packet->type);
 674         }
 675
 676 }
 677
 678 /* Register the given PDs for this session.
 679  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 680  * That will instantiate two SPI decoders on the clock but different data
 681  * lines.
 682  */
 683 static int register_pds(struct sr_dev *dev, const char *pdstring)
 684 {
 685         GHashTable *pd_opthash;
 686         struct srd_decoder_inst *di;
 687         int ret;
 688         char **pdtokens, **pdtok, *pd_name;
 689
 690         /* Avoid compiler warnings. */
 691         (void)dev;
 692
 693         ret = 0;
 694         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
 695                         g_free, NULL);
 696         pd_name = NULL;
 697         pd_opthash = NULL;
 698         pdtokens = g_strsplit(pdstring, ",", 0);
 699         for (pdtok = pdtokens; *pdtok; pdtok++) {
 700                 if (!(pd_opthash = parse_generic_arg(*pdtok))) {
 701                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
 702                         goto err_out;
 703                 }
 704
 705                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 706                 g_hash_table_remove(pd_opthash, "sigrok_key");
 707                 if (srd_decoder_load(pd_name) != SRD_OK) {
 708                         g_critical("Failed to load protocol decoder %s.", pd_name);
 709                         ret = 1;
 710                         goto err_out;
 711                 }
 712                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 713                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
 714                         ret = 1;
 715                         goto err_out;
 716                 }
 717
 718                 /* If no annotation list was specified, add them all in now.
 719                  * This will be pared down later to leave only the last PD
 720                  * in the stack.
 721                  */
 722                 if (!opt_pd_annotations)
 723                         g_hash_table_insert(pd_ann_visible,
 724                                             g_strdup(di->inst_id), NULL);
 725
 726                 /* Any keys left in the options hash are probes, where the key
 727                  * is the probe name as specified in the decoder class, and the
 728                  * value is the probe number i.e. the order in which the PD's
 729                  * incoming samples are arranged. */
 730                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
 731                         ret = 1;
 732                         goto err_out;
 733                 }
 734                 g_hash_table_destroy(pd_opthash);
 735                 pd_opthash = NULL;
 736         }
 737
 738 err_out:
 739         g_strfreev(pdtokens);
 740         if (pd_opthash)
 741                 g_hash_table_destroy(pd_opthash);
 742         if (pd_name)
 743                 g_free(pd_name);
 744
 745         return ret;
 746 }
 747
 748 int setup_pd_stack(void)
 749 {
 750         struct srd_decoder_inst *di_from, *di_to;
 751         int ret, i;
 752         char **pds, **ids;
 753
 754         /* Set up the protocol decoder stack. */
 755         pds = g_strsplit(opt_pds, ",", 0);
 756         if (g_strv_length(pds) > 1) {
 757                 if (opt_pd_stack) {
 758                         /* A stack setup was specified, use that. */
 759                         g_strfreev(pds);
 760                         pds = g_strsplit(opt_pd_stack, ",", 0);
 761                         if (g_strv_length(pds) < 2) {
 762                                 g_strfreev(pds);
 763                                 g_critical("Specify at least two protocol decoders to stack.");
 764                                 return 1;
 765                         }
 766                 }
 767
 768                 /* First PD goes at the bottom of the stack. */
 769                 ids = g_strsplit(pds[0], ":", 0);
 770                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
 771                         g_strfreev(ids);
 772                         g_critical("Cannot stack protocol decoder '%s': "
 773                                         "instance not found.", pds[0]);
 774                         return 1;
 775                 }
 776                 g_strfreev(ids);
 777
 778                 /* Every subsequent PD goes on top. */
 779                 for (i = 1; pds[i]; i++) {
 780                         ids = g_strsplit(pds[i], ":", 0);
 781                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
 782                                 g_strfreev(ids);
 783                                 g_critical("Cannot stack protocol decoder '%s': "
 784                                                 "instance not found.", pds[i]);
 785                                 return 1;
 786                         }
 787                         g_strfreev(ids);
 788                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
 789                                 return 1;
 790
 791                         /* Don't show annotation from this PD. Only the last PD in
 792                          * the stack will be left on the annotation list (unless
 793                          * the annotation list was specifically provided).
 794                          */
 795                         if (!opt_pd_annotations)
 796                                 g_hash_table_remove(pd_ann_visible,
 797                                                     di_from->inst_id);
 798
 799                         di_from = di_to;
 800                 }
 801         }
 802         g_strfreev(pds);
 803
 804         return 0;
 805 }
 806
 807 int setup_pd_annotations(void)
 808 {
 809         GSList *l;
 810         struct srd_decoder *dec;
 811         int ann;
 812         char **pds, **pdtok, **keyval, **ann_descr;
 813
 814         /* Set up custom list of PDs and annotations to show. */
 815         if (opt_pd_annotations) {
 816                 pds = g_strsplit(opt_pd_annotations, ",", 0);
 817                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
 818                         ann = 0;
 819                         keyval = g_strsplit(*pdtok, "=", 0);
 820                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
 821                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
 822                                 return 1;
 823                         }
 824                         if (!dec->annotations) {
 825                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
 826                                 return 1;
 827                         }
 828                         if (g_strv_length(keyval) == 2) {
 829                                 for (l = dec->annotations; l; l = l->next, ann++) {
 830                                         ann_descr = l->data;
 831                                         if (!canon_cmp(ann_descr[0], keyval[1]))
 832                                                 /* Found it. */
 833                                                 break;
 834                                 }
 835                                 if (!l) {
 836                                         g_critical("Annotation '%s' not found "
 837                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
 838                                         return 1;
 839                                 }
 840                         }
 841                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
 842                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
 843                         g_strfreev(keyval);
 844                 }
 845                 g_strfreev(pds);
 846         }
 847
 848         return 0;
 849 }
 850
 851 int setup_output_format(void)
 852 {
 853         GHashTable *fmtargs;
 854         GHashTableIter iter;
 855         gpointer key, value;
 856         struct sr_output_format **outputs;
 857         int i;
 858         char *fmtspec;
 859
 860         if (!opt_output_format) {
 861                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
 862                 /* we'll need to remember this so when saving to a file
 863                  * later, sigrok session format will be used.
 864                  */
 865                 default_output_format = TRUE;
 866         }
 867
 868         fmtargs = parse_generic_arg(opt_output_format);
 869         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
 870         if (!fmtspec) {
 871                 g_critical("Invalid output format.");
 872                 return 1;
 873         }
 874         outputs = sr_output_list();
 875         for (i = 0; outputs[i]; i++) {
 876                 if (strcmp(outputs[i]->id, fmtspec))
 877                         continue;
 878                 g_hash_table_remove(fmtargs, "sigrok_key");
 879                 output_format = outputs[i];
 880                 g_hash_table_iter_init(&iter, fmtargs);
 881                 while (g_hash_table_iter_next(&iter, &key, &value)) {
 882                         /* only supporting one parameter per output module
 883                          * for now, and only its value */
 884                         output_format_param = g_strdup(value);
 885                         break;
 886                 }
 887                 break;
 888         }
 889         if (!output_format) {
 890                 g_critical("Invalid output format %s.", opt_output_format);
 891                 return 1;
 892         }
 893         g_hash_table_destroy(fmtargs);
 894
 895         return 0;
 896 }
 897
 898 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
 899 {
 900         int i;
 901         char **annotations;
 902         gpointer ann_format;
 903
 904         /* 'cb_data' is not used in this specific callback. */
 905         (void)cb_data;
 906
 907         if (!pd_ann_visible)
 908                 return;
 909
 910         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
 911                         NULL, &ann_format))
 912                 /* Not in the list of PDs whose annotations we're showing. */
 913                 return;
 914
 915         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
 916                 /* We don't want this particular format from the PD. */
 917                 return;
 918
 919         annotations = pdata->data;
 920         if (opt_loglevel > SR_LOG_WARN)
 921                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
 922         printf("%s: ", pdata->pdo->proto_id);
 923         for (i = 0; annotations[i]; i++)
 924                 printf("\"%s\" ", annotations[i]);
 925         printf("\n");
 926 }
 927
 928 static int select_probes(struct sr_dev *dev)
 929 {
 930         struct sr_probe *probe;
 931         char **probelist;
 932         int max_probes, i;
 933
 934         if (!opt_probes)
 935                 return SR_OK;
 936
 937         /*
 938          * This only works because a device by default initializes
 939          * and enables all its probes.
 940          */
 941         max_probes = g_slist_length(dev->probes);
 942         probelist = parse_probestring(max_probes, opt_probes);
 943         if (!probelist) {
 944                 return SR_ERR;
 945         }
 946
 947         for (i = 0; i < max_probes; i++) {
 948                 if (probelist[i]) {
 949                         sr_dev_probe_name_set(dev, i + 1, probelist[i]);
 950                         g_free(probelist[i]);
 951                 } else {
 952                         probe = sr_dev_probe_find(dev, i + 1);
 953                         probe->enabled = FALSE;
 954                 }
 955         }
 956         g_free(probelist);
 957
 958         return SR_OK;
 959 }
 960
 961 /**
 962  * Return the input file format which the CLI tool should use.
 963  *
 964  * If the user specified -I / --input-format, use that one. Otherwise, try to
 965  * autodetect the format as good as possible. Failing that, return NULL.
 966  *
 967  * @param filename The filename of the input file. Must not be NULL.
 968  * @param opt The -I / --input-file option the user specified (or NULL).
 969  *
 970  * @return A pointer to the 'struct sr_input_format' that should be used,
 971  *         or NULL if no input format was selected or auto-detected.
 972  */
 973 static struct sr_input_format *determine_input_file_format(
 974                         const char *filename, const char *opt)
 975 {
 976         int i;
 977         struct sr_input_format **inputs;
 978
 979         /* If there are no input formats, return NULL right away. */
 980         inputs = sr_input_list();
 981         if (!inputs) {
 982                 g_critical("No supported input formats available.");
 983                 return NULL;
 984         }
 985
 986         /* If the user specified -I / --input-format, use that one. */
 987         if (opt) {
 988                 for (i = 0; inputs[i]; i++) {
 989                         if (strcasecmp(inputs[i]->id, opt_input_format))
 990                                 continue;
 991                         g_debug("Using user-specified input file format '%s'.",
 992                                         inputs[i]->id);
 993                         return inputs[i];
 994                 }
 995
 996                 /* The user specified an unknown input format, return NULL. */
 997                 g_critical("Error: specified input file format '%s' is "
 998                         "unknown.", opt_input_format);
 999                 return NULL;
1000         }
1001
1002         /* Otherwise, try to find an input module that can handle this file. */
1003         for (i = 0; inputs[i]; i++) {
1004                 if (inputs[i]->format_match(filename))
1005                         break;
1006         }
1007
1008         /* Return NULL if no input module wanted to touch this. */
1009         if (!inputs[i]) {
1010                 g_critical("Error: no matching input module found.");
1011                 return NULL;
1012         }
1013
1014         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1015                 inputs[i]->id, filename);
1016
1017         return inputs[i];
1018 }
1019
1020 static void load_input_file_format(void)
1021 {
1022         struct stat st;
1023         struct sr_input *in;
1024         struct sr_input_format *input_format;
1025
1026         if (!(input_format = determine_input_file_format(opt_input_file,
1027                                                    opt_input_format)))
1028                 /* The exact cause was already logged. */
1029                 return;
1030
1031         if (stat(opt_input_file, &st) == -1) {
1032                 g_critical("Failed to load %s: %s", opt_input_file,
1033                         strerror(errno));
1034                 exit(1);
1035         }
1036
1037         /* Initialize the input module. */
1038         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1039                 g_critical("Failed to allocate input module.");
1040                 exit(1);
1041         }
1042         in->format = input_format;
1043         in->param = input_format_param;
1044         if (in->format->init) {
1045                 if (in->format->init(in) != SR_OK) {
1046                         g_critical("Input format init failed.");
1047                         exit(1);
1048                 }
1049         }
1050
1051         if (select_probes(in->vdev) > 0)
1052             return;
1053
1054         sr_session_new();
1055         sr_session_datafeed_callback_add(datafeed_in);
1056         if (sr_session_dev_add(in->vdev) != SR_OK) {
1057                 g_critical("Failed to use device.");
1058                 sr_session_destroy();
1059                 return;
1060         }
1061
1062         input_format->loadfile(in, opt_input_file);
1063         if (opt_output_file && default_output_format) {
1064                 if (sr_session_save(opt_output_file) != SR_OK)
1065                         g_critical("Failed to save session.");
1066         }
1067         sr_session_destroy();
1068 }
1069
1070 static void load_input_file(void)
1071 {
1072
1073         if (sr_session_load(opt_input_file) == SR_OK) {
1074                 /* sigrok session file */
1075                 sr_session_datafeed_callback_add(datafeed_in);
1076                 sr_session_start();
1077                 sr_session_run();
1078                 sr_session_stop();
1079         }
1080         else {
1081                 /* fall back on input modules */
1082                 load_input_file_format();
1083         }
1084 }
1085
1086 int num_real_devs(void)
1087 {
1088         struct sr_dev *dev;
1089         GSList *devs, *l;
1090         int num_devs;
1091
1092         num_devs = 0;
1093         devs = sr_dev_list();
1094         for (l = devs; l; l = l->next) {
1095                 dev = l->data;
1096                 if (!sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV))
1097                         num_devs++;
1098         }
1099
1100         return num_devs;
1101 }
1102
1103 static int set_dev_options(struct sr_dev *dev, GHashTable *args)
1104 {
1105         GHashTableIter iter;
1106         gpointer key, value;
1107         int ret, i;
1108         float tmp_float;
1109         uint64_t tmp_u64;
1110         struct sr_rational tmp_rat;
1111         gboolean tmp_bool;
1112         gboolean found;
1113
1114         g_hash_table_iter_init(&iter, args);
1115         while (g_hash_table_iter_next(&iter, &key, &value)) {
1116                 found = FALSE;
1117                 for (i = 0; sr_hwcap_options[i].hwcap; i++) {
1118                         if (strcmp(sr_hwcap_options[i].shortname, key))
1119                                 continue;
1120                         if ((value == NULL) &&
1121                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
1122                                 g_critical("Option '%s' needs a value.", (char *)key);
1123                                 return SR_ERR;
1124                         }
1125                         found = TRUE;
1126                         switch (sr_hwcap_options[i].type) {
1127                         case SR_T_UINT64:
1128                                 ret = sr_parse_sizestring(value, &tmp_u64);
1129                                 if (ret != SR_OK)
1130                                         break;
1131                                 ret = dev->driver->dev_config_set(dev->driver_index,
1132                                         sr_hwcap_options[i].hwcap, &tmp_u64);
1133                                 break;
1134                         case SR_T_CHAR:
1135                                 ret = dev->driver->dev_config_set(dev->driver_index,
1136                                         sr_hwcap_options[i].hwcap, value);
1137                                 break;
1138                         case SR_T_BOOL:
1139                                 if (!value)
1140                                         tmp_bool = TRUE;
1141                                 else
1142                                         tmp_bool = sr_parse_boolstring(value);
1143                                 ret = dev->driver->dev_config_set(dev->driver_index,
1144                                                 sr_hwcap_options[i].hwcap,
1145                                                 GINT_TO_POINTER(tmp_bool));
1146                                 break;
1147                         case SR_T_FLOAT:
1148                                 tmp_float = strtof(value, NULL);
1149                                 ret = dev->driver->dev_config_set(dev->driver_index,
1150                                                 sr_hwcap_options[i].hwcap, &tmp_float);
1151                                 break;
1152                         case SR_T_RATIONAL_PERIOD:
1153                                 if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1154                                         break;
1155                                 ret = dev->driver->dev_config_set(dev->driver_index,
1156                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1157                                 break;
1158                         case SR_T_RATIONAL_VOLT:
1159                                 if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1160                                         break;
1161                                 ret = dev->driver->dev_config_set(dev->driver_index,
1162                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1163                                 break;
1164                         default:
1165                                 ret = SR_ERR;
1166                         }
1167
1168                         if (ret != SR_OK) {
1169                                 g_critical("Failed to set device option '%s'.", (char *)key);
1170                                 return ret;
1171                         }
1172                         else
1173                                 break;
1174                 }
1175                 if (!found) {
1176                         g_critical("Unknown device option '%s'.", (char *) key);
1177                         return SR_ERR;
1178                 }
1179         }
1180
1181         return SR_OK;
1182 }
1183
1184 static void run_session(void)
1185 {
1186         struct sr_dev *dev;
1187         GHashTable *devargs;
1188         int num_devs, max_probes, i;
1189         uint64_t time_msec;
1190         char **probelist, *devspec;
1191
1192         devargs = NULL;
1193         if (opt_dev) {
1194                 devargs = parse_generic_arg(opt_dev);
1195                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
1196                 dev = parse_devstring(devspec);
1197                 if (!dev) {
1198                         g_critical("Device not found.");
1199                         return;
1200                 }
1201                 g_hash_table_remove(devargs, "sigrok_key");
1202         } else {
1203                 num_devs = num_real_devs();
1204                 if (num_devs == 1) {
1205                         /* No device specified, but there is only one. */
1206                         devargs = NULL;
1207                         dev = parse_devstring("0");
1208                 } else if (num_devs == 0) {
1209                         g_critical("No devices found.");
1210                         return;
1211                 } else {
1212                         g_critical("%d devices found, please select one.", num_devs);
1213                         return;
1214                 }
1215         }
1216
1217         sr_session_new();
1218         sr_session_datafeed_callback_add(datafeed_in);
1219
1220         if (sr_session_dev_add(dev) != SR_OK) {
1221                 g_critical("Failed to use device.");
1222                 sr_session_destroy();
1223                 return;
1224         }
1225
1226         if (devargs) {
1227                 if (set_dev_options(dev, devargs) != SR_OK) {
1228                         sr_session_destroy();
1229                         return;
1230                 }
1231                 g_hash_table_destroy(devargs);
1232         }
1233
1234         if (select_probes(dev) != SR_OK)
1235             return;
1236
1237         if (opt_continuous) {
1238                 if (!sr_driver_hwcap_exists(dev->driver, SR_HWCAP_CONTINUOUS)) {
1239                         g_critical("This device does not support continuous sampling.");
1240                         sr_session_destroy();
1241                         return;
1242                 }
1243         }
1244
1245         if (opt_triggers) {
1246                 probelist = sr_parse_triggerstring(dev, opt_triggers);
1247                 if (!probelist) {
1248                         sr_session_destroy();
1249                         return;
1250                 }
1251
1252                 max_probes = g_slist_length(dev->probes);
1253                 for (i = 0; i < max_probes; i++) {
1254                         if (probelist[i]) {
1255                                 sr_dev_trigger_set(dev, i + 1, probelist[i]);
1256                                 g_free(probelist[i]);
1257                         }
1258                 }
1259                 g_free(probelist);
1260         }
1261
1262         if (opt_time) {
1263                 time_msec = sr_parse_timestring(opt_time);
1264                 if (time_msec == 0) {
1265                         g_critical("Invalid time '%s'", opt_time);
1266                         sr_session_destroy();
1267                         return;
1268                 }
1269
1270                 if (sr_driver_hwcap_exists(dev->driver, SR_HWCAP_LIMIT_MSEC)) {
1271                         if (dev->driver->dev_config_set(dev->driver_index,
1272                             SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1273                                 g_critical("Failed to configure time limit.");
1274                                 sr_session_destroy();
1275                                 return;
1276                         }
1277                 }
1278                 else {
1279                         /* time limit set, but device doesn't support this...
1280                          * convert to samples based on the samplerate.
1281                          */
1282                         limit_samples = 0;
1283                         if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
1284                                 const uint64_t *samplerate;
1285
1286                                 sr_dev_info_get(dev, SR_DI_CUR_SAMPLERATE,
1287                                                 (const void **)&samplerate);
1288                                 limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1289                         }
1290                         if (limit_samples == 0) {
1291                                 g_critical("Not enough time at this samplerate.");
1292                                 sr_session_destroy();
1293                                 return;
1294                         }
1295
1296                         if (dev->driver->dev_config_set(dev->driver_index,
1297                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
1298                                 g_critical("Failed to configure time-based sample limit.");
1299                                 sr_session_destroy();
1300                                 return;
1301                         }
1302                 }
1303         }
1304
1305         if (opt_samples) {
1306                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1307                         || (dev->driver->dev_config_set(dev->driver_index,
1308                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
1309                         g_critical("Failed to configure sample limit.");
1310                         sr_session_destroy();
1311                         return;
1312                 }
1313         }
1314
1315         if (opt_frames) {
1316                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1317                         || (dev->driver->dev_config_set(dev->driver_index,
1318                             SR_HWCAP_LIMIT_FRAMES, &limit_frames) != SR_OK)) {
1319                         printf("Failed to configure frame limit.\n");
1320                         sr_session_destroy();
1321                         return;
1322                 }
1323         }
1324
1325         if (dev->driver->dev_config_set(dev->driver_index,
1326                   SR_HWCAP_PROBECONFIG, (char *)dev->probes) != SR_OK) {
1327                 g_critical("Failed to configure probes.");
1328                 sr_session_destroy();
1329                 return;
1330         }
1331
1332         if (sr_session_start() != SR_OK) {
1333                 g_critical("Failed to start session.");
1334                 sr_session_destroy();
1335                 return;
1336         }
1337
1338         if (opt_continuous)
1339                 add_anykey();
1340
1341         sr_session_run();
1342
1343         if (opt_continuous)
1344                 clear_anykey();
1345
1346         if (opt_output_file && default_output_format) {
1347                 if (sr_session_save(opt_output_file) != SR_OK)
1348                         g_critical("Failed to save session.");
1349         }
1350         sr_session_destroy();
1351 }
1352
1353 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1354                    const gchar *message, gpointer cb_data)
1355 {
1356         /* Avoid compiler warnings. */
1357         (void)log_domain;
1358         (void)cb_data;
1359
1360         /*
1361          * All messages, warnings, errors etc. go to stderr (not stdout) in
1362          * order to not mess up the CLI tool data output, e.g. VCD output.
1363          */
1364         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1365                         || opt_loglevel > SR_LOG_WARN) {
1366                 fprintf(stderr, "%s\n", message);
1367                 fflush(stderr);
1368         }
1369 }
1370
1371 int main(int argc, char **argv)
1372 {
1373         GOptionContext *context;
1374         GError *error;
1375
1376         g_log_set_default_handler(logger, NULL);
1377
1378         error = NULL;
1379         context = g_option_context_new(NULL);
1380         g_option_context_add_main_entries(context, optargs, NULL);
1381
1382         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1383                 g_critical("%s", error->message);
1384                 return 1;
1385         }
1386
1387         /* Set the loglevel (amount of messages to output) for libsigrok. */
1388         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1389                 return 1;
1390
1391         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1392         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1393                 return 1;
1394
1395         if (sr_init() != SR_OK)
1396                 return 1;
1397
1398         if (opt_pds) {
1399                 if (srd_init(NULL) != SRD_OK)
1400                         return 1;
1401                 if (register_pds(NULL, opt_pds) != 0)
1402                         return 1;
1403                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1404                                 show_pd_annotations, NULL) != SRD_OK)
1405                         return 1;
1406                 if (setup_pd_stack() != 0)
1407                         return 1;
1408                 if (setup_pd_annotations() != 0)
1409                         return 1;
1410         }
1411
1412         if (setup_output_format() != 0)
1413                 return 1;
1414
1415         if (opt_version)
1416                 show_version();
1417         else if (opt_list_devs)
1418                 show_dev_list();
1419         else if (opt_input_file)
1420                 load_input_file();
1421         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1422                 run_session();
1423         else if (opt_dev)
1424                 show_dev_detail();
1425         else if (opt_pds)
1426                 show_pd_detail();
1427         else
1428                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1429
1430         if (opt_pds)
1431                 srd_exit();
1432
1433         g_option_context_free(context);
1434         sr_exit();
1435
1436         return 0;
1437 }