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 if (hwo->hwcap == SR_HWCAP_FILTER) {
 324                         /* Supported trigger sources */
 325                         printf("    %s", hwo->shortname);
 326                         if (sr_dev_info_get(dev, SR_DI_FILTERS,
 327                                         (const void **)&stropts) != SR_OK) {
 328                                 printf("\n");
 329                                 continue;
 330                         }
 331                         printf(" - supported filter targets:\n");
 332                         for (i = 0; stropts[i]; i++)
 333                                 printf("      %s\n", stropts[i]);
 334
 335                 } else if (hwo->hwcap == SR_HWCAP_VDIV) {
 336                         /* Supported volts/div values */
 337                         printf("    %s", hwo->shortname);
 338                         if (sr_dev_info_get(dev, SR_DI_VDIVS,
 339                                         (const void **)&rationals) != SR_OK) {
 340                                 printf("\n");
 341                                 continue;
 342                         }
 343                         printf(" - supported volts/div:\n");
 344                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 345                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
 346
 347                 } else {
 348                         /* Everything else */
 349                         printf("    %s\n", hwo->shortname);
 350                 }
 351         }
 352 }
 353
 354 static void show_pd_detail(void)
 355 {
 356         GSList *l;
 357         struct srd_decoder *dec;
 358         char **pdtokens, **pdtok, **ann, *doc;
 359         struct srd_probe *p;
 360
 361         pdtokens = g_strsplit(opt_pds, ",", -1);
 362         for (pdtok = pdtokens; *pdtok; pdtok++) {
 363                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 364                         printf("Protocol decoder %s not found.\n", *pdtok);
 365                         return;
 366                 }
 367                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 368                                 dec->id, dec->name, dec->longname, dec->desc);
 369                 printf("License: %s\n", dec->license);
 370                 printf("Annotations:\n");
 371                 if (dec->annotations) {
 372                         for (l = dec->annotations; l; l = l->next) {
 373                                 ann = l->data;
 374                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 375                         }
 376                 } else {
 377                         printf("None.\n");
 378                 }
 379                 /* TODO: Print supported decoder options. */
 380                 printf("Required probes:\n");
 381                 if (dec->probes) {
 382                         for (l = dec->probes; l; l = l->next) {
 383                                 p = l->data;
 384                                 printf("- %s (%s): %s\n",
 385                                        p->name, p->id, p->desc);
 386                         }
 387                 } else {
 388                         printf("None.\n");
 389                 }
 390                 printf("Optional probes:\n");
 391                 if (dec->opt_probes) {
 392                         for (l = dec->opt_probes; l; l = l->next) {
 393                                 p = l->data;
 394                                 printf("- %s (%s): %s\n",
 395                                        p->name, p->id, p->desc);
 396                         }
 397                 } else {
 398                         printf("None.\n");
 399                 }
 400                 if ((doc = srd_decoder_doc_get(dec))) {
 401                         printf("Documentation:\n%s\n",
 402                                doc[0] == '\n' ? doc + 1 : doc);
 403                         g_free(doc);
 404                 }
 405         }
 406
 407         g_strfreev(pdtokens);
 408 }
 409
 410 static void datafeed_in(struct sr_dev *dev, struct sr_datafeed_packet *packet)
 411 {
 412         static struct sr_output *o = NULL;
 413         static int logic_probelist[SR_MAX_NUM_PROBES] = { 0 };
 414         static struct sr_probe *analog_probelist[SR_MAX_NUM_PROBES];
 415         static uint64_t received_samples = 0;
 416         static int unitsize = 0;
 417         static int triggered = 0;
 418         static FILE *outfile = NULL;
 419         static int num_analog_probes = 0;
 420         struct sr_probe *probe;
 421         struct sr_datafeed_logic *logic;
 422         struct sr_datafeed_meta_logic *meta_logic;
 423         struct sr_datafeed_analog *analog;
 424         struct sr_datafeed_meta_analog *meta_analog;
 425         static int num_enabled_analog_probes = 0;
 426         int num_enabled_probes, sample_size, data_offset, ret, i, j;
 427         uint64_t output_len, filter_out_len;
 428         uint8_t *output_buf, *filter_out;
 429         float asample;
 430
 431         /* If the first packet to come in isn't a header, don't even try. */
 432         if (packet->type != SR_DF_HEADER && o == NULL)
 433                 return;
 434
 435         sample_size = -1;
 436         switch (packet->type) {
 437         case SR_DF_HEADER:
 438                 g_debug("cli: Received SR_DF_HEADER");
 439                 /* Initialize the output module. */
 440                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 441                         g_critical("Output module malloc failed.");
 442                         exit(1);
 443                 }
 444                 o->format = output_format;
 445                 o->dev = dev;
 446                 o->param = output_format_param;
 447                 if (o->format->init) {
 448                         if (o->format->init(o) != SR_OK) {
 449                                 g_critical("Output format initialization failed.");
 450                                 exit(1);
 451                         }
 452                 }
 453                 break;
 454
 455         case SR_DF_END:
 456                 g_debug("cli: Received SR_DF_END");
 457                 if (!o) {
 458                         g_debug("cli: double end!");
 459                         break;
 460                 }
 461                 if (o->format->event) {
 462                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 463                         if (output_len) {
 464                                 if (outfile)
 465                                         fwrite(output_buf, 1, output_len, outfile);
 466                                 g_free(output_buf);
 467                                 output_len = 0;
 468                         }
 469                 }
 470                 if (limit_samples && received_samples < limit_samples)
 471                         g_warning("Device only sent %" PRIu64 " samples.",
 472                                received_samples);
 473                 if (opt_continuous)
 474                         g_warning("Device stopped after %" PRIu64 " samples.",
 475                                received_samples);
 476                 sr_session_halt();
 477                 if (outfile && outfile != stdout)
 478                         fclose(outfile);
 479                 g_free(o);
 480                 o = NULL;
 481                 break;
 482
 483         case SR_DF_TRIGGER:
 484                 g_debug("cli: received SR_DF_TRIGGER");
 485                 if (o->format->event)
 486                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 487                                          &output_len);
 488                 triggered = 1;
 489                 break;
 490
 491         case SR_DF_META_LOGIC:
 492                 g_message("cli: Received SR_DF_META_LOGIC");
 493                 meta_logic = packet->payload;
 494                 num_enabled_probes = 0;
 495                 for (i = 0; i < meta_logic->num_probes; i++) {
 496                         probe = g_slist_nth_data(dev->probes, i);
 497                         if (probe->enabled)
 498                                 logic_probelist[num_enabled_probes++] = probe->index;
 499                 }
 500                 /* How many bytes we need to store num_enabled_probes bits */
 501                 unitsize = (num_enabled_probes + 7) / 8;
 502
 503                 outfile = stdout;
 504                 if (opt_output_file) {
 505                         if (default_output_format) {
 506                                 /* output file is in session format, which means we'll
 507                                  * dump everything in the datastore as it comes in,
 508                                  * and save from there after the session. */
 509                                 outfile = NULL;
 510                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
 511                                 if (ret != SR_OK) {
 512                                         printf("Failed to create datastore.\n");
 513                                         exit(1);
 514                                 }
 515                         } else {
 516                                 /* saving to a file in whatever format was set
 517                                  * with --format, so all we need is a filehandle */
 518                                 outfile = g_fopen(opt_output_file, "wb");
 519                         }
 520                 }
 521                 if (opt_pds)
 522                         srd_session_start(num_enabled_probes, unitsize,
 523                                         meta_logic->samplerate);
 524                 break;
 525
 526         case SR_DF_LOGIC:
 527                 logic = packet->payload;
 528                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 529                 sample_size = logic->unitsize;
 530                 if (logic->length == 0)
 531                         break;
 532
 533                 /* Don't store any samples until triggered. */
 534                 if (opt_wait_trigger && !triggered)
 535                         break;
 536
 537                 if (limit_samples && received_samples >= limit_samples)
 538                         break;
 539
 540                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 541                                            logic->data, logic->length,
 542                                            &filter_out, &filter_out_len);
 543                 if (ret != SR_OK)
 544                         break;
 545
 546                 /* what comes out of the filter is guaranteed to be packed into the
 547                  * minimum size needed to support the number of samples at this sample
 548                  * size. however, the driver may have submitted too much -- cut off
 549                  * the buffer of the last packet according to the sample limit.
 550                  */
 551                 if (limit_samples && (received_samples + logic->length / sample_size >
 552                                 limit_samples * sample_size))
 553                         filter_out_len = limit_samples * sample_size - received_samples;
 554
 555                 if (dev->datastore)
 556                         sr_datastore_put(dev->datastore, filter_out,
 557                                          filter_out_len, sample_size, logic_probelist);
 558
 559                 if (opt_output_file && default_output_format)
 560                         /* saving to a session file, don't need to do anything else
 561                          * to this data for now. */
 562                         goto cleanup;
 563
 564                 if (opt_pds) {
 565                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
 566                                         filter_out_len) != SRD_OK)
 567                                 sr_session_halt();
 568                 } else {
 569                         output_len = 0;
 570                         if (o->format->data && packet->type == o->format->df_type)
 571                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 572                         if (output_len) {
 573                                 fwrite(output_buf, 1, output_len, outfile);
 574                                 g_free(output_buf);
 575                         }
 576                 }
 577
 578                 cleanup:
 579                 g_free(filter_out);
 580                 received_samples += logic->length / sample_size;
 581                 break;
 582
 583         case SR_DF_META_ANALOG:
 584                 g_message("cli: Received SR_DF_META_ANALOG");
 585                 meta_analog = packet->payload;
 586                 num_analog_probes = meta_analog->num_probes;
 587                 num_enabled_analog_probes = 0;
 588                 for (i = 0; i < num_analog_probes; i++) {
 589                         probe = g_slist_nth_data(dev->probes, i);
 590                         if (probe->enabled)
 591                                 analog_probelist[num_enabled_analog_probes++] = probe;
 592                 }
 593
 594                 outfile = stdout;
 595                 if (opt_output_file) {
 596                         if (default_output_format) {
 597                                 /* output file is in session format, which means we'll
 598                                  * dump everything in the datastore as it comes in,
 599                                  * and save from there after the session. */
 600                                 outfile = NULL;
 601                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
 602                                 if (ret != SR_OK) {
 603                                         printf("Failed to create datastore.\n");
 604                                         exit(1);
 605                                 }
 606                         } else {
 607                                 /* saving to a file in whatever format was set
 608                                  * with --format, so all we need is a filehandle */
 609                                 outfile = g_fopen(opt_output_file, "wb");
 610                         }
 611                 }
 612 //              if (opt_pds)
 613 //                      srd_session_start(num_enabled_probes, unitsize,
 614 //                                      meta_logic->samplerate);
 615                 break;
 616
 617         case SR_DF_ANALOG:
 618                 analog = packet->payload;
 619                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 620                 if (analog->num_samples == 0)
 621                         break;
 622
 623                 if (limit_samples && received_samples >= limit_samples)
 624                         break;
 625
 626                 data_offset = 0;
 627                 for (i = 0; i < analog->num_samples; i++) {
 628                         for (j = 0; j < num_enabled_analog_probes; j++) {
 629                                 asample = analog->data[data_offset++];
 630                                 printf("%s: %f\n", analog_probelist[j]->name, asample);
 631                         }
 632 //                      asample1 = asample2 = 0.0;
 633 //                      asample1 = analog->data[data_offset++];
 634 //                      asample2 = analog->data[i * num_analog_probes + 1];
 635 //                      printf("%d\t%f\t%f\n", received_samples+i+1, asample1, asample2);
 636                 }
 637
 638 //              output_len = 0;
 639 //              if (o->format->data && packet->type == o->format->df_type)
 640 //                      o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 641
 642                 received_samples += analog->num_samples;
 643                 break;
 644
 645         case SR_DF_FRAME_BEGIN:
 646                 /* TODO */
 647                 printf("BEGIN\n");
 648                 break;
 649
 650         case SR_DF_FRAME_END:
 651                 /* TODO */
 652                 printf("END\n");
 653                 break;
 654
 655         default:
 656                 g_message("received unknown packet type %d", packet->type);
 657         }
 658
 659 }
 660
 661 /* Register the given PDs for this session.
 662  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 663  * That will instantiate two SPI decoders on the clock but different data
 664  * lines.
 665  */
 666 static int register_pds(struct sr_dev *dev, const char *pdstring)
 667 {
 668         GHashTable *pd_opthash;
 669         struct srd_decoder_inst *di;
 670         int ret;
 671         char **pdtokens, **pdtok, *pd_name;
 672
 673         /* Avoid compiler warnings. */
 674         (void)dev;
 675
 676         ret = 0;
 677         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
 678                         g_free, NULL);
 679         pd_name = NULL;
 680         pd_opthash = NULL;
 681         pdtokens = g_strsplit(pdstring, ",", 0);
 682         for (pdtok = pdtokens; *pdtok; pdtok++) {
 683                 if (!(pd_opthash = parse_generic_arg(*pdtok))) {
 684                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
 685                         goto err_out;
 686                 }
 687
 688                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 689                 g_hash_table_remove(pd_opthash, "sigrok_key");
 690                 if (srd_decoder_load(pd_name) != SRD_OK) {
 691                         g_critical("Failed to load protocol decoder %s.", pd_name);
 692                         ret = 1;
 693                         goto err_out;
 694                 }
 695                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 696                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
 697                         ret = 1;
 698                         goto err_out;
 699                 }
 700
 701                 /* If no annotation list was specified, add them all in now.
 702                  * This will be pared down later to leave only the last PD
 703                  * in the stack.
 704                  */
 705                 if (!opt_pd_annotations)
 706                         g_hash_table_insert(pd_ann_visible,
 707                                             g_strdup(di->inst_id), NULL);
 708
 709                 /* Any keys left in the options hash are probes, where the key
 710                  * is the probe name as specified in the decoder class, and the
 711                  * value is the probe number i.e. the order in which the PD's
 712                  * incoming samples are arranged. */
 713                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
 714                         ret = 1;
 715                         goto err_out;
 716                 }
 717                 g_hash_table_destroy(pd_opthash);
 718                 pd_opthash = NULL;
 719         }
 720
 721 err_out:
 722         g_strfreev(pdtokens);
 723         if (pd_opthash)
 724                 g_hash_table_destroy(pd_opthash);
 725         if (pd_name)
 726                 g_free(pd_name);
 727
 728         return ret;
 729 }
 730
 731 int setup_pd_stack(void)
 732 {
 733         struct srd_decoder_inst *di_from, *di_to;
 734         int ret, i;
 735         char **pds;
 736
 737         /* Set up the protocol decoder stack. */
 738         pds = g_strsplit(opt_pds, ",", 0);
 739         if (g_strv_length(pds) > 1) {
 740                 if (opt_pd_stack) {
 741                         /* A stack setup was specified, use that. */
 742                         g_strfreev(pds);
 743                         pds = g_strsplit(opt_pd_stack, ",", 0);
 744                         if (g_strv_length(pds) < 2) {
 745                                 g_strfreev(pds);
 746                                 g_critical("Specify at least two protocol decoders to stack.");
 747                                 return 1;
 748                         }
 749                 }
 750
 751                 if (!(di_from = srd_inst_find_by_id(pds[0]))) {
 752                         g_critical("Cannot stack protocol decoder '%s': "
 753                                         "instance not found.", pds[0]);
 754                         return 1;
 755                 }
 756                 for (i = 1; pds[i]; i++) {
 757                         if (!(di_to = srd_inst_find_by_id(pds[i]))) {
 758                                 g_critical("Cannot stack protocol decoder '%s': "
 759                                                 "instance not found.", pds[i]);
 760                                 return 1;
 761                         }
 762                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
 763                                 return 1;
 764
 765                         /* Don't show annotation from this PD. Only the last PD in
 766                          * the stack will be left on the annotation list (unless
 767                          * the annotation list was specifically provided).
 768                          */
 769                         if (!opt_pd_annotations)
 770                                 g_hash_table_remove(pd_ann_visible,
 771                                                     di_from->inst_id);
 772
 773                         di_from = di_to;
 774                 }
 775         }
 776         g_strfreev(pds);
 777
 778         return 0;
 779 }
 780
 781 int setup_pd_annotations(void)
 782 {
 783         GSList *l;
 784         struct srd_decoder *dec;
 785         int ann;
 786         char **pds, **pdtok, **keyval, **ann_descr;
 787
 788         /* Set up custom list of PDs and annotations to show. */
 789         if (opt_pd_annotations) {
 790                 pds = g_strsplit(opt_pd_annotations, ",", 0);
 791                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
 792                         ann = 0;
 793                         keyval = g_strsplit(*pdtok, "=", 0);
 794                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
 795                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
 796                                 return 1;
 797                         }
 798                         if (!dec->annotations) {
 799                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
 800                                 return 1;
 801                         }
 802                         if (g_strv_length(keyval) == 2) {
 803                                 for (l = dec->annotations; l; l = l->next, ann++) {
 804                                         ann_descr = l->data;
 805                                         if (!canon_cmp(ann_descr[0], keyval[1]))
 806                                                 /* Found it. */
 807                                                 break;
 808                                 }
 809                                 if (!l) {
 810                                         g_critical("Annotation '%s' not found "
 811                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
 812                                         return 1;
 813                                 }
 814                         }
 815                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
 816                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
 817                         g_strfreev(keyval);
 818                 }
 819                 g_strfreev(pds);
 820         }
 821
 822         return 0;
 823 }
 824
 825 int setup_output_format(void)
 826 {
 827         GHashTable *fmtargs;
 828         GHashTableIter iter;
 829         gpointer key, value;
 830         struct sr_output_format **outputs;
 831         int i;
 832         char *fmtspec;
 833
 834         if (!opt_output_format) {
 835                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
 836                 /* we'll need to remember this so when saving to a file
 837                  * later, sigrok session format will be used.
 838                  */
 839                 default_output_format = TRUE;
 840         }
 841         fmtargs = parse_generic_arg(opt_output_format);
 842         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
 843         if (!fmtspec) {
 844                 g_critical("Invalid output format.");
 845                 return 1;
 846         }
 847         outputs = sr_output_list();
 848         for (i = 0; outputs[i]; i++) {
 849                 if (strcmp(outputs[i]->id, fmtspec))
 850                         continue;
 851                 g_hash_table_remove(fmtargs, "sigrok_key");
 852                 output_format = outputs[i];
 853                 g_hash_table_iter_init(&iter, fmtargs);
 854                 while (g_hash_table_iter_next(&iter, &key, &value)) {
 855                         /* only supporting one parameter per output module
 856                          * for now, and only its value */
 857                         output_format_param = g_strdup(value);
 858                         break;
 859                 }
 860                 break;
 861         }
 862         if (!output_format) {
 863                 g_critical("Invalid output format %s.", opt_output_format);
 864                 return 1;
 865         }
 866         g_hash_table_destroy(fmtargs);
 867
 868         return 0;
 869 }
 870
 871 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
 872 {
 873         int i;
 874         char **annotations;
 875         gpointer ann_format;
 876
 877         /* 'cb_data' is not used in this specific callback. */
 878         (void)cb_data;
 879
 880         if (!pd_ann_visible)
 881                 return;
 882
 883         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
 884                         NULL, &ann_format))
 885                 /* Not in the list of PDs whose annotations we're showing. */
 886                 return;
 887
 888         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
 889                 /* We don't want this particular format from the PD. */
 890                 return;
 891
 892         annotations = pdata->data;
 893         if (opt_loglevel > SR_LOG_WARN)
 894                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
 895         printf("%s: ", pdata->pdo->proto_id);
 896         for (i = 0; annotations[i]; i++)
 897                 printf("\"%s\" ", annotations[i]);
 898         printf("\n");
 899 }
 900
 901 static int select_probes(struct sr_dev *dev)
 902 {
 903         struct sr_probe *probe;
 904         char **probelist;
 905         int max_probes, i;
 906
 907         if (!opt_probes)
 908                 return SR_OK;
 909
 910         /*
 911          * This only works because a device by default initializes
 912          * and enables all its probes.
 913          */
 914         max_probes = g_slist_length(dev->probes);
 915         probelist = parse_probestring(max_probes, opt_probes);
 916         if (!probelist) {
 917                 return SR_ERR;
 918         }
 919
 920         for (i = 0; i < max_probes; i++) {
 921                 if (probelist[i]) {
 922                         sr_dev_probe_name_set(dev, i + 1, probelist[i]);
 923                         g_free(probelist[i]);
 924                 } else {
 925                         probe = sr_dev_probe_find(dev, i + 1);
 926                         probe->enabled = FALSE;
 927                 }
 928         }
 929         g_free(probelist);
 930
 931         return SR_OK;
 932 }
 933
 934 /**
 935  * Return the input file format which the CLI tool should use.
 936  *
 937  * If the user specified -I / --input-format, use that one. Otherwise, try to
 938  * autodetect the format as good as possible. Failing that, return NULL.
 939  *
 940  * @param filename The filename of the input file. Must not be NULL.
 941  * @param opt The -I / --input-file option the user specified (or NULL).
 942  *
 943  * @return A pointer to the 'struct sr_input_format' that should be used,
 944  *         or NULL if no input format was selected or auto-detected.
 945  */
 946 static struct sr_input_format *determine_input_file_format(
 947                         const char *filename, const char *opt)
 948 {
 949         int i;
 950         struct sr_input_format **inputs;
 951
 952         /* If there are no input formats, return NULL right away. */
 953         inputs = sr_input_list();
 954         if (!inputs) {
 955                 g_critical("No supported input formats available.");
 956                 return NULL;
 957         }
 958
 959         /* If the user specified -I / --input-format, use that one. */
 960         if (opt) {
 961                 for (i = 0; inputs[i]; i++) {
 962                         if (strcasecmp(inputs[i]->id, opt_input_format))
 963                                 continue;
 964                         g_debug("Using user-specified input file format '%s'.",
 965                                         inputs[i]->id);
 966                         return inputs[i];
 967                 }
 968
 969                 /* The user specified an unknown input format, return NULL. */
 970                 g_critical("Error: specified input file format '%s' is "
 971                         "unknown.", opt_input_format);
 972                 return NULL;
 973         }
 974
 975         /* Otherwise, try to find an input module that can handle this file. */
 976         for (i = 0; inputs[i]; i++) {
 977                 if (inputs[i]->format_match(filename))
 978                         break;
 979         }
 980
 981         /* Return NULL if no input module wanted to touch this. */
 982         if (!inputs[i]) {
 983                 g_critical("Error: no matching input module found.");
 984                 return NULL;
 985         }
 986
 987         g_debug("cli: Autodetected '%s' input format for file '%s'.",
 988                 inputs[i]->id, filename);
 989
 990         return inputs[i];
 991 }
 992
 993 static void load_input_file_format(void)
 994 {
 995         struct stat st;
 996         struct sr_input *in;
 997         struct sr_input_format *input_format;
 998
 999         if (!(input_format = determine_input_file_format(opt_input_file,
1000                                                    opt_input_format)))
1001                 /* The exact cause was already logged. */
1002                 return;
1003
1004         if (stat(opt_input_file, &st) == -1) {
1005                 g_critical("Failed to load %s: %s", opt_input_file,
1006                         strerror(errno));
1007                 exit(1);
1008         }
1009
1010         /* Initialize the input module. */
1011         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1012                 g_critical("Failed to allocate input module.");
1013                 exit(1);
1014         }
1015         in->format = input_format;
1016         in->param = input_format_param;
1017         if (in->format->init) {
1018                 if (in->format->init(in) != SR_OK) {
1019                         g_critical("Input format init failed.");
1020                         exit(1);
1021                 }
1022         }
1023
1024         if (select_probes(in->vdev) > 0)
1025             return;
1026
1027         sr_session_new();
1028         sr_session_datafeed_callback_add(datafeed_in);
1029         if (sr_session_dev_add(in->vdev) != SR_OK) {
1030                 g_critical("Failed to use device.");
1031                 sr_session_destroy();
1032                 return;
1033         }
1034
1035         input_format->loadfile(in, opt_input_file);
1036         if (opt_output_file && default_output_format) {
1037                 if (sr_session_save(opt_output_file) != SR_OK)
1038                         g_critical("Failed to save session.");
1039         }
1040         sr_session_destroy();
1041 }
1042
1043 static void load_input_file(void)
1044 {
1045
1046         if (sr_session_load(opt_input_file) == SR_OK) {
1047                 /* sigrok session file */
1048                 sr_session_datafeed_callback_add(datafeed_in);
1049                 sr_session_start();
1050                 sr_session_run();
1051                 sr_session_stop();
1052         }
1053         else {
1054                 /* fall back on input modules */
1055                 load_input_file_format();
1056         }
1057 }
1058
1059 int num_real_devs(void)
1060 {
1061         struct sr_dev *dev;
1062         GSList *devs, *l;
1063         int num_devs;
1064
1065         num_devs = 0;
1066         devs = sr_dev_list();
1067         for (l = devs; l; l = l->next) {
1068                 dev = l->data;
1069                 if (!sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV))
1070                         num_devs++;
1071         }
1072
1073         return num_devs;
1074 }
1075
1076 static int set_dev_options(struct sr_dev *dev, GHashTable *args)
1077 {
1078         GHashTableIter iter;
1079         gpointer key, value;
1080         int ret, i;
1081         float tmp_float;
1082         uint64_t tmp_u64;
1083         struct sr_rational tmp_rat;
1084         gboolean tmp_bool;
1085         gboolean found;
1086
1087         g_hash_table_iter_init(&iter, args);
1088         while (g_hash_table_iter_next(&iter, &key, &value)) {
1089                 found = FALSE;
1090                 for (i = 0; sr_hwcap_options[i].hwcap; i++) {
1091                         if (strcmp(sr_hwcap_options[i].shortname, key))
1092                                 continue;
1093                         if ((value == NULL) &&
1094                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
1095                                 g_critical("Option '%s' needs a value.", (char *)key);
1096                                 return SR_ERR;
1097                         }
1098                         found = TRUE;
1099                         switch (sr_hwcap_options[i].type) {
1100                         case SR_T_UINT64:
1101                                 ret = sr_parse_sizestring(value, &tmp_u64);
1102                                 if (ret != SR_OK)
1103                                         break;
1104                                 ret = dev->driver->dev_config_set(dev->driver_index,
1105                                         sr_hwcap_options[i].hwcap, &tmp_u64);
1106                                 break;
1107                         case SR_T_CHAR:
1108                                 ret = dev->driver->dev_config_set(dev->driver_index,
1109                                         sr_hwcap_options[i].hwcap, value);
1110                                 break;
1111                         case SR_T_BOOL:
1112                                 if (!value)
1113                                         tmp_bool = TRUE;
1114                                 else
1115                                         tmp_bool = sr_parse_boolstring(value);
1116                                 ret = dev->driver->dev_config_set(dev->driver_index,
1117                                                 sr_hwcap_options[i].hwcap,
1118                                                 GINT_TO_POINTER(tmp_bool));
1119                                 break;
1120                         case SR_T_FLOAT:
1121                                 tmp_float = strtof(value, NULL);
1122                                 ret = dev->driver->dev_config_set(dev->driver_index,
1123                                                 sr_hwcap_options[i].hwcap, &tmp_float);
1124                                 break;
1125                         case SR_T_RATIONAL_PERIOD:
1126                                 if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1127                                         break;
1128                                 ret = dev->driver->dev_config_set(dev->driver_index,
1129                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1130                                 break;
1131                         case SR_T_RATIONAL_VOLT:
1132                                 if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1133                                         break;
1134                                 ret = dev->driver->dev_config_set(dev->driver_index,
1135                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1136                                 break;
1137                         default:
1138                                 ret = SR_ERR;
1139                         }
1140
1141                         if (ret != SR_OK) {
1142                                 g_critical("Failed to set device option '%s'.", (char *)key);
1143                                 return ret;
1144                         }
1145                         else
1146                                 break;
1147                 }
1148                 if (!found) {
1149                         g_critical("Unknown device option '%s'.", (char *) key);
1150                         return SR_ERR;
1151                 }
1152         }
1153
1154         return SR_OK;
1155 }
1156
1157 static void run_session(void)
1158 {
1159         struct sr_dev *dev;
1160         GHashTable *devargs;
1161         int num_devs, max_probes, i;
1162         uint64_t time_msec;
1163         char **probelist, *devspec;
1164
1165         devargs = NULL;
1166         if (opt_dev) {
1167                 devargs = parse_generic_arg(opt_dev);
1168                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
1169                 dev = parse_devstring(devspec);
1170                 if (!dev) {
1171                         g_critical("Device not found.");
1172                         return;
1173                 }
1174                 g_hash_table_remove(devargs, "sigrok_key");
1175         } else {
1176                 num_devs = num_real_devs();
1177                 if (num_devs == 1) {
1178                         /* No device specified, but there is only one. */
1179                         devargs = NULL;
1180                         dev = parse_devstring("0");
1181                 } else if (num_devs == 0) {
1182                         g_critical("No devices found.");
1183                         return;
1184                 } else {
1185                         g_critical("%d devices found, please select one.", num_devs);
1186                         return;
1187                 }
1188         }
1189
1190         sr_session_new();
1191         sr_session_datafeed_callback_add(datafeed_in);
1192
1193         if (sr_session_dev_add(dev) != SR_OK) {
1194                 g_critical("Failed to use device.");
1195                 sr_session_destroy();
1196                 return;
1197         }
1198
1199         if (devargs) {
1200                 if (set_dev_options(dev, devargs) != SR_OK) {
1201                         sr_session_destroy();
1202                         return;
1203                 }
1204                 g_hash_table_destroy(devargs);
1205         }
1206
1207         if (select_probes(dev) != SR_OK)
1208             return;
1209
1210         if (opt_continuous) {
1211                 if (!sr_driver_hwcap_exists(dev->driver, SR_HWCAP_CONTINUOUS)) {
1212                         g_critical("This device does not support continuous sampling.");
1213                         sr_session_destroy();
1214                         return;
1215                 }
1216         }
1217
1218         if (opt_triggers) {
1219                 probelist = sr_parse_triggerstring(dev, opt_triggers);
1220                 if (!probelist) {
1221                         sr_session_destroy();
1222                         return;
1223                 }
1224
1225                 max_probes = g_slist_length(dev->probes);
1226                 for (i = 0; i < max_probes; i++) {
1227                         if (probelist[i]) {
1228                                 sr_dev_trigger_set(dev, i + 1, probelist[i]);
1229                                 g_free(probelist[i]);
1230                         }
1231                 }
1232                 g_free(probelist);
1233         }
1234
1235         if (opt_time) {
1236                 time_msec = sr_parse_timestring(opt_time);
1237                 if (time_msec == 0) {
1238                         g_critical("Invalid time '%s'", opt_time);
1239                         sr_session_destroy();
1240                         return;
1241                 }
1242
1243                 if (sr_driver_hwcap_exists(dev->driver, SR_HWCAP_LIMIT_MSEC)) {
1244                         if (dev->driver->dev_config_set(dev->driver_index,
1245                             SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1246                                 g_critical("Failed to configure time limit.");
1247                                 sr_session_destroy();
1248                                 return;
1249                         }
1250                 }
1251                 else {
1252                         /* time limit set, but device doesn't support this...
1253                          * convert to samples based on the samplerate.
1254                          */
1255                         limit_samples = 0;
1256                         if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
1257                                 const uint64_t *samplerate;
1258
1259                                 sr_dev_info_get(dev, SR_DI_CUR_SAMPLERATE,
1260                                                 (const void **)&samplerate);
1261                                 limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1262                         }
1263                         if (limit_samples == 0) {
1264                                 g_critical("Not enough time at this samplerate.");
1265                                 sr_session_destroy();
1266                                 return;
1267                         }
1268
1269                         if (dev->driver->dev_config_set(dev->driver_index,
1270                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
1271                                 g_critical("Failed to configure time-based sample limit.");
1272                                 sr_session_destroy();
1273                                 return;
1274                         }
1275                 }
1276         }
1277
1278         if (opt_samples) {
1279                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1280                         || (dev->driver->dev_config_set(dev->driver_index,
1281                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
1282                         g_critical("Failed to configure sample limit.");
1283                         sr_session_destroy();
1284                         return;
1285                 }
1286         }
1287
1288         if (opt_frames) {
1289                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1290                         || (dev->driver->dev_config_set(dev->driver_index,
1291                             SR_HWCAP_LIMIT_FRAMES, &limit_frames) != SR_OK)) {
1292                         printf("Failed to configure frame limit.\n");
1293                         sr_session_destroy();
1294                         return;
1295                 }
1296         }
1297
1298         if (dev->driver->dev_config_set(dev->driver_index,
1299                   SR_HWCAP_PROBECONFIG, (char *)dev->probes) != SR_OK) {
1300                 g_critical("Failed to configure probes.");
1301                 sr_session_destroy();
1302                 return;
1303         }
1304
1305         if (sr_session_start() != SR_OK) {
1306                 g_critical("Failed to start session.");
1307                 sr_session_destroy();
1308                 return;
1309         }
1310
1311         if (opt_continuous)
1312                 add_anykey();
1313
1314         sr_session_run();
1315
1316         if (opt_continuous)
1317                 clear_anykey();
1318
1319         if (opt_output_file && default_output_format) {
1320                 if (sr_session_save(opt_output_file) != SR_OK)
1321                         g_critical("Failed to save session.");
1322         }
1323         sr_session_destroy();
1324 }
1325
1326 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1327                    const gchar *message, gpointer cb_data)
1328 {
1329         /* Avoid compiler warnings. */
1330         (void)log_domain;
1331         (void)cb_data;
1332
1333         /*
1334          * All messages, warnings, errors etc. go to stderr (not stdout) in
1335          * order to not mess up the CLI tool data output, e.g. VCD output.
1336          */
1337         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1338                         || opt_loglevel > SR_LOG_WARN) {
1339                 fprintf(stderr, "%s\n", message);
1340                 fflush(stderr);
1341         }
1342 }
1343
1344 int main(int argc, char **argv)
1345 {
1346         GOptionContext *context;
1347         GError *error;
1348
1349         g_log_set_default_handler(logger, NULL);
1350
1351         error = NULL;
1352         context = g_option_context_new(NULL);
1353         g_option_context_add_main_entries(context, optargs, NULL);
1354
1355         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1356                 g_critical("%s", error->message);
1357                 return 1;
1358         }
1359
1360         /* Set the loglevel (amount of messages to output) for libsigrok. */
1361         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1362                 return 1;
1363
1364         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1365         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1366                 return 1;
1367
1368         if (sr_init() != SR_OK)
1369                 return 1;
1370
1371         if (opt_pds) {
1372                 if (srd_init(NULL) != SRD_OK)
1373                         return 1;
1374                 if (register_pds(NULL, opt_pds) != 0)
1375                         return 1;
1376                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1377                                 show_pd_annotations, NULL) != SRD_OK)
1378                         return 1;
1379                 if (setup_pd_stack() != 0)
1380                         return 1;
1381                 if (setup_pd_annotations() != 0)
1382                         return 1;
1383         }
1384
1385         if (setup_output_format() != 0)
1386                 return 1;
1387
1388         if (opt_version)
1389                 show_version();
1390         else if (opt_list_devs)
1391                 show_dev_list();
1392         else if (opt_input_file)
1393                 load_input_file();
1394         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1395                 run_session();
1396         else if (opt_dev)
1397                 show_dev_detail();
1398         else if (opt_pds)
1399                 show_pd_detail();
1400         else
1401                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1402
1403         if (opt_pds)
1404                 srd_exit();
1405
1406         g_option_context_free(context);
1407         sr_exit();
1408
1409         return 0;
1410 }