sigrok-cli.c

   1 /*
   2  * This file is part of the sigrok-cli 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 "config.h"
  21 #ifdef HAVE_SRD
  22 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
  23 #endif
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <unistd.h>
  27 #include <string.h>
  28 #include <time.h>
  29 #include <sys/time.h>
  30 #include <inttypes.h>
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33 #include <errno.h>
  34 #include <glib.h>
  35 #include <glib/gstdio.h>
  36 #include <libsigrok/libsigrok.h>
  37 #include "sigrok-cli.h"
  38
  39 #define DEFAULT_OUTPUT_FORMAT "bits:width=64"
  40
  41 static struct sr_context *sr_ctx = NULL;
  42
  43 static uint64_t limit_samples = 0;
  44 static uint64_t limit_frames = 0;
  45 static struct sr_output_format *output_format = NULL;
  46 static int default_output_format = FALSE;
  47 static char *output_format_param = NULL;
  48 #ifdef HAVE_SRD
  49 static struct srd_session *srd_sess = NULL;
  50 static GHashTable *pd_ann_visible = NULL;
  51 static GHashTable *pd_meta_visible = NULL;
  52 static GHashTable *pd_binary_visible = NULL;
  53 #endif
  54 static GByteArray *savebuf;
  55
  56 static gboolean opt_version = FALSE;
  57 static gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */
  58 static gboolean opt_scan_devs = FALSE;
  59 static gboolean opt_wait_trigger = FALSE;
  60 static gchar *opt_input_file = NULL;
  61 static gchar *opt_output_file = NULL;
  62 static gchar *opt_drv = NULL;
  63 static gchar *opt_config = NULL;
  64 static gchar *opt_probes = NULL;
  65 static gchar *opt_probe_group = NULL;
  66 static gchar *opt_triggers = NULL;
  67 static gchar *opt_pds = NULL;
  68 #ifdef HAVE_SRD
  69 static gchar *opt_pd_stack = NULL;
  70 static gchar *opt_pd_annotations = NULL;
  71 static gchar *opt_pd_meta = NULL;
  72 static gchar *opt_pd_binary = NULL;
  73 #endif
  74 static gchar *opt_input_format = NULL;
  75 static gchar *opt_output_format = NULL;
  76 static gchar *opt_show = NULL;
  77 static gchar *opt_time = NULL;
  78 static gchar *opt_samples = NULL;
  79 static gchar *opt_frames = NULL;
  80 static gchar *opt_continuous = NULL;
  81 static gchar *opt_set = NULL;
  82
  83 static GOptionEntry optargs[] = {
  84         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
  85                         "Show version and support list", NULL},
  86         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
  87                         "Set loglevel (5 is most verbose)", NULL},
  88         {"driver", 'd', 0, G_OPTION_ARG_STRING, &opt_drv,
  89                         "The driver to use", NULL},
  90         {"config", 'c', 0, G_OPTION_ARG_STRING, &opt_config,
  91                         "Specify device configuration options", NULL},
  92         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
  93                         "Load input from file", NULL},
  94         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
  95                         "Input format", NULL},
  96         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
  97                         "Save output to file", NULL},
  98         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
  99                         "Output format", NULL},
 100         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
 101                         "Probes to use", NULL},
 102         {"probe-group", 'g', 0, G_OPTION_ARG_STRING, &opt_probe_group,
 103                         "Probe groups", NULL},
 104         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
 105                         "Trigger configuration", NULL},
 106         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
 107                         "Wait for trigger", NULL},
 108 #ifdef HAVE_SRD
 109         {"protocol-decoders", 'P', 0, G_OPTION_ARG_STRING, &opt_pds,
 110                         "Protocol decoders to run", NULL},
 111         {"protocol-decoder-stack", 'S', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
 112                         "Protocol decoder stack", NULL},
 113         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
 114                         "Protocol decoder annotation(s) to show", NULL},
 115         {"protocol-decoder-meta", 'M', 0, G_OPTION_ARG_STRING, &opt_pd_meta,
 116                         "Protocol decoder meta output to show", NULL},
 117         {"protocol-decoder-binary", 'B', 0, G_OPTION_ARG_STRING, &opt_pd_binary,
 118                         "Protocol decoder binary output to show", NULL},
 119 #endif
 120         {"scan", 0, 0, G_OPTION_ARG_NONE, &opt_scan_devs,
 121                         "Scan for devices", NULL},
 122         {"show", 0, 0, G_OPTION_ARG_NONE, &opt_show,
 123                         "Show device detail", NULL},
 124         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
 125                         "How long to sample (ms)", NULL},
 126         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
 127                         "Number of samples to acquire", NULL},
 128         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
 129                         "Number of frames to acquire", NULL},
 130         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
 131                         "Sample continuously", NULL},
 132         {"set", 0, 0, G_OPTION_ARG_NONE, &opt_set, "Set device options only", NULL},
 133         {NULL, 0, 0, 0, NULL, NULL, NULL}
 134 };
 135
 136
 137 /* Convert driver options hash to GSList of struct sr_config. */
 138 static GSList *hash_to_hwopt(GHashTable *hash)
 139 {
 140         const struct sr_config_info *srci;
 141         struct sr_config *src;
 142         GList *gl, *keys;
 143         GSList *opts;
 144         char *key, *value;
 145
 146         keys = g_hash_table_get_keys(hash);
 147         opts = NULL;
 148         for (gl = keys; gl; gl = gl->next) {
 149                 key = gl->data;
 150                 if (!(srci = sr_config_info_name_get(key))) {
 151                         g_critical("Unknown option %s", key);
 152                         return NULL;
 153                 }
 154                 src = g_try_malloc(sizeof(struct sr_config));
 155                 src->key = srci->key;
 156                 value = g_hash_table_lookup(hash, key);
 157                 src->data = g_variant_new_string(value);
 158                 opts = g_slist_append(opts, src);
 159         }
 160         g_list_free(keys);
 161
 162         return opts;
 163 }
 164
 165 static struct sr_probe_group *select_probe_group(struct sr_dev_inst *sdi)
 166 {
 167         struct sr_probe_group *pg;
 168         GSList *l;
 169
 170         if (!opt_probe_group)
 171                 return NULL;
 172
 173         if (!sdi->probe_groups) {
 174                 g_critical("This device does not have any probe groups.");
 175                 return NULL;
 176         }
 177
 178         for (l = sdi->probe_groups; l; l = l->next) {
 179                 pg = l->data;
 180                 if (!strcasecmp(opt_probe_group, pg->name)) {
 181                         return pg;
 182                 }
 183         }
 184
 185         return NULL;
 186 }
 187
 188 static void free_drvopts(struct sr_config *src)
 189 {
 190         g_variant_unref(src->data);
 191         g_free(src);
 192 }
 193
 194 static GSList *device_scan(void)
 195 {
 196         struct sr_dev_driver **drivers, *driver;
 197         GHashTable *drvargs;
 198         GSList *drvopts, *devices, *tmpdevs, *l;
 199         int i;
 200         char *drvname;
 201
 202         if (opt_drv) {
 203                 drvargs = parse_generic_arg(opt_drv, TRUE);
 204                 drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
 205                 g_hash_table_remove(drvargs, "sigrok_key");
 206                 driver = NULL;
 207                 drivers = sr_driver_list();
 208                 for (i = 0; drivers[i]; i++) {
 209                         if (strcmp(drivers[i]->name, drvname))
 210                                 continue;
 211                         driver = drivers[i];
 212                 }
 213                 if (!driver) {
 214                         g_critical("Driver %s not found.", drvname);
 215                         g_hash_table_destroy(drvargs);
 216                         g_free(drvname);
 217                         return NULL;
 218                 }
 219                 g_free(drvname);
 220                 if (sr_driver_init(sr_ctx, driver) != SR_OK) {
 221                         g_critical("Failed to initialize driver.");
 222                         g_hash_table_destroy(drvargs);
 223                         return NULL;
 224                 }
 225                 drvopts = NULL;
 226                 if (g_hash_table_size(drvargs) > 0) {
 227                         if (!(drvopts = hash_to_hwopt(drvargs))) {
 228                                 /* Unknown options, already logged. */
 229                                 g_hash_table_destroy(drvargs);
 230                                 return NULL;
 231                         }
 232                 }
 233                 g_hash_table_destroy(drvargs);
 234                 devices = sr_driver_scan(driver, drvopts);
 235                 g_slist_free_full(drvopts, (GDestroyNotify)free_drvopts);
 236         } else {
 237                 /* No driver specified, let them all scan on their own. */
 238                 devices = NULL;
 239                 drivers = sr_driver_list();
 240                 for (i = 0; drivers[i]; i++) {
 241                         driver = drivers[i];
 242                         if (sr_driver_init(sr_ctx, driver) != SR_OK) {
 243                                 g_critical("Failed to initialize driver.");
 244                                 return NULL;
 245                         }
 246                         tmpdevs = sr_driver_scan(driver, NULL);
 247                         for (l = tmpdevs; l; l = l->next)
 248                                 devices = g_slist_append(devices, l->data);
 249                         g_slist_free(tmpdevs);
 250                 }
 251         }
 252
 253         return devices;
 254 }
 255
 256 static void show_version(void)
 257 {
 258         struct sr_dev_driver **drivers;
 259         struct sr_input_format **inputs;
 260         struct sr_output_format **outputs;
 261         int i;
 262 #ifdef HAVE_SRD
 263         struct srd_decoder *dec;
 264         const GSList *l;
 265 #endif
 266
 267         printf("sigrok-cli %s\n\n", VERSION);
 268
 269         printf("Using libsigrok %s (lib version %s).\n",
 270                sr_package_version_string_get(), sr_lib_version_string_get());
 271 #ifdef HAVE_SRD
 272         printf("Using libsigrokdecode %s (lib version %s).\n\n",
 273                srd_package_version_string_get(), srd_lib_version_string_get());
 274 #endif
 275
 276         printf("Supported hardware drivers:\n");
 277         drivers = sr_driver_list();
 278         for (i = 0; drivers[i]; i++) {
 279                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
 280         }
 281         printf("\n");
 282
 283         printf("Supported input formats:\n");
 284         inputs = sr_input_list();
 285         for (i = 0; inputs[i]; i++)
 286                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
 287         printf("\n");
 288
 289         printf("Supported output formats:\n");
 290         outputs = sr_output_list();
 291         for (i = 0; outputs[i]; i++)
 292                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
 293         printf("  %-20s %s\n", "sigrok", "Default file output format");
 294         printf("\n");
 295
 296 #ifdef HAVE_SRD
 297         if (srd_init(NULL) == SRD_OK) {
 298                 printf("Supported protocol decoders:\n");
 299                 srd_decoder_load_all();
 300                 for (l = srd_decoder_list(); l; l = l->next) {
 301                         dec = l->data;
 302                         printf("  %-20s %s\n", dec->id, dec->longname);
 303                         /* Print protocol description upon "-l 3" or higher. */
 304                         if (opt_loglevel >= SR_LOG_INFO)
 305                                 printf("  %-20s %s\n", "", dec->desc);
 306                 }
 307                 srd_exit();
 308         }
 309         printf("\n");
 310 #endif
 311 }
 312
 313 static void print_dev_line(const struct sr_dev_inst *sdi)
 314 {
 315         struct sr_probe *probe;
 316         GSList *l;
 317         GString *s;
 318         GVariant *gvar;
 319
 320         s = g_string_sized_new(128);
 321         g_string_assign(s, sdi->driver->name);
 322         if (sr_config_get(sdi->driver, sdi, NULL, SR_CONF_CONN, &gvar) == SR_OK) {
 323                 g_string_append(s, ":conn=");
 324                 g_string_append(s, g_variant_get_string(gvar, NULL));
 325                 g_variant_unref(gvar);
 326         }
 327         g_string_append(s, " - ");
 328         if (sdi->vendor && sdi->vendor[0])
 329                 g_string_append_printf(s, "%s ", sdi->vendor);
 330         if (sdi->model && sdi->model[0])
 331                 g_string_append_printf(s, "%s ", sdi->model);
 332         if (sdi->version && sdi->version[0])
 333                 g_string_append_printf(s, "%s ", sdi->version);
 334         if (sdi->probes) {
 335                 if (g_slist_length(sdi->probes) == 1) {
 336                         probe = sdi->probes->data;
 337                         g_string_append_printf(s, "with 1 probe: %s", probe->name);
 338                 } else {
 339                         g_string_append_printf(s, "with %d probes:", g_slist_length(sdi->probes));
 340                         for (l = sdi->probes; l; l = l->next) {
 341                                 probe = l->data;
 342                                 g_string_append_printf(s, " %s", probe->name);
 343                         }
 344                 }
 345         }
 346         g_string_append_printf(s, "\n");
 347         printf("%s", s->str);
 348         g_string_free(s, TRUE);
 349
 350 }
 351
 352 static void show_dev_list(void)
 353 {
 354         struct sr_dev_inst *sdi;
 355         GSList *devices, *l;
 356
 357         if (!(devices = device_scan()))
 358                 return;
 359
 360         printf("The following devices were found:\n");
 361         for (l = devices; l; l = l->next) {
 362                 sdi = l->data;
 363                 print_dev_line(sdi);
 364         }
 365         g_slist_free(devices);
 366
 367 }
 368
 369 static void show_dev_detail(void)
 370 {
 371         struct sr_dev_inst *sdi;
 372         const struct sr_config_info *srci;
 373         struct sr_probe *probe;
 374         struct sr_probe_group *probe_group, *pg;
 375         GSList *devices, *pgl, *prl;
 376         GVariant *gvar_opts, *gvar_dict, *gvar_list, *gvar;
 377         gsize num_opts, num_elements;
 378         const uint64_t *uint64, p, q, low, high;
 379         uint64_t cur_low, cur_high;
 380         const int32_t *opts;
 381         unsigned int num_devices, o, i;
 382         char *tmp_str;
 383         char *s;
 384         const char *charopts, **stropts;
 385
 386         if (!(devices = device_scan())) {
 387                 g_critical("No devices found.");
 388                 return;
 389         }
 390
 391         num_devices = g_slist_length(devices);
 392         if (num_devices > 1) {
 393                 g_critical("%d devices found. Use --scan to show them, "
 394                                 "and select one to show.", num_devices);
 395                 return;
 396         }
 397
 398         sdi = devices->data;
 399         print_dev_line(sdi);
 400
 401         if (sr_dev_open(sdi) != SR_OK) {
 402                 g_critical("Failed to open device.");
 403                 return;
 404         }
 405
 406         if ((sr_config_list(sdi->driver, NULL, NULL, SR_CONF_SCAN_OPTIONS,
 407                         &gvar_opts) == SR_OK)) {
 408                 opts = g_variant_get_fixed_array(gvar_opts, &num_elements,
 409                                 sizeof(int32_t));
 410                 printf("Supported driver options:\n");
 411                 for (i = 0; i < num_elements; i++) {
 412                         if (!(srci = sr_config_info_get(opts[i])))
 413                                 continue;
 414                         printf("    %s\n", srci->id);
 415                 }
 416                 g_variant_unref(gvar_opts);
 417         }
 418
 419         probe_group = select_probe_group(sdi);
 420         if ((sr_config_list(sdi->driver, sdi, probe_group, SR_CONF_DEVICE_OPTIONS,
 421                         &gvar_opts)) != SR_OK)
 422                 /* Driver supports no device instance options. */
 423                 return;
 424
 425         if (sdi->probe_groups) {
 426                 printf("Probe groups:\n");
 427                 for (pgl = sdi->probe_groups; pgl; pgl = pgl->next) {
 428                         pg = pgl->data;
 429                         printf("    %s: channel%s", pg->name,
 430                                         g_slist_length(pg->probes) > 1 ? "s" : "");
 431                         for (prl = pg->probes; prl; prl = prl->next) {
 432                                 probe = prl->data;
 433                                 printf(" %s", probe->name);
 434                         }
 435                         printf("\n");
 436                 }
 437         }
 438
 439         printf("Supported configuration options");
 440         if (sdi->probe_groups) {
 441                 if (!probe_group)
 442                         printf(" across all probe groups");
 443                 else
 444                         printf(" on probe group %s", probe_group->name);
 445         }
 446         printf(":\n");
 447         opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(int32_t));
 448         for (o = 0; o < num_opts; o++) {
 449                 if (!(srci = sr_config_info_get(opts[o])))
 450                         continue;
 451
 452                 if (srci->key == SR_CONF_TRIGGER_TYPE) {
 453                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
 454                                         &gvar) != SR_OK) {
 455                                 printf("\n");
 456                                 continue;
 457                         }
 458                         charopts = g_variant_get_string(gvar, NULL);
 459                         printf("    Supported triggers: ");
 460                         while (*charopts) {
 461                                 printf("%c ", *charopts);
 462                                 charopts++;
 463                         }
 464                         printf("\n");
 465                         g_variant_unref(gvar);
 466
 467                 } else if (srci->key == SR_CONF_PATTERN_MODE) {
 468                         /* Pattern generator modes */
 469                         printf("    %s", srci->id);
 470                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
 471                                         &gvar) == SR_OK) {
 472                                 printf(" - supported patterns:\n");
 473                                 stropts = g_variant_get_strv(gvar, &num_elements);
 474                                 for (i = 0; i < num_elements; i++)
 475                                         printf("      %s\n", stropts[i]);
 476                                 g_variant_unref(gvar);
 477                         } else {
 478                                 printf("\n");
 479                         }
 480
 481                 } else if (srci->key == SR_CONF_SAMPLERATE) {
 482                         /* Supported samplerates */
 483                         printf("    %s", srci->id);
 484                         if (sr_config_list(sdi->driver, sdi, probe_group, SR_CONF_SAMPLERATE,
 485                                         &gvar_dict) != SR_OK) {
 486                                 printf("\n");
 487                                 continue;
 488                         }
 489                         if ((gvar_list = g_variant_lookup_value(gvar_dict,
 490                                         "samplerates", G_VARIANT_TYPE("at")))) {
 491                                 uint64 = g_variant_get_fixed_array(gvar_list,
 492                                                 &num_elements, sizeof(uint64_t));
 493                                 printf(" - supported samplerates:\n");
 494                                 for (i = 0; i < num_elements; i++) {
 495                                         if (!(s = sr_samplerate_string(uint64[i])))
 496                                                 continue;
 497                                         printf("      %s\n", s);
 498                                         g_free(s);
 499                                 }
 500                                 g_variant_unref(gvar_list);
 501                         } else if ((gvar_list = g_variant_lookup_value(gvar_dict,
 502                                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
 503                                 uint64 = g_variant_get_fixed_array(gvar_list,
 504                                                 &num_elements, sizeof(uint64_t));
 505                                 /* low */
 506                                 if (!(s = sr_samplerate_string(uint64[0])))
 507                                         continue;
 508                                 printf(" (%s", s);
 509                                 g_free(s);
 510                                 /* high */
 511                                 if (!(s = sr_samplerate_string(uint64[1])))
 512                                         continue;
 513                                 printf(" - %s", s);
 514                                 g_free(s);
 515                                 /* step */
 516                                 if (!(s = sr_samplerate_string(uint64[2])))
 517                                         continue;
 518                                 printf(" in steps of %s)\n", s);
 519                                 g_free(s);
 520                                 g_variant_unref(gvar_list);
 521                         }
 522                         g_variant_unref(gvar_dict);
 523
 524                 } else if (srci->key == SR_CONF_BUFFERSIZE) {
 525                         /* Supported buffer sizes */
 526                         printf("    %s", srci->id);
 527                         if (sr_config_list(sdi->driver, sdi, probe_group,
 528                                         SR_CONF_BUFFERSIZE, &gvar_list) != SR_OK) {
 529                                 printf("\n");
 530                                 continue;
 531                         }
 532                         uint64 = g_variant_get_fixed_array(gvar_list,
 533                                         &num_elements, sizeof(uint64_t));
 534                         printf(" - supported buffer sizes:\n");
 535                         for (i = 0; i < num_elements; i++)
 536                                 printf("      %"PRIu64"\n", uint64[i]);
 537                         g_variant_unref(gvar_list);
 538
 539                 } else if (srci->key == SR_CONF_TIMEBASE) {
 540                         /* Supported time bases */
 541                         printf("    %s", srci->id);
 542                         if (sr_config_list(sdi->driver, sdi, probe_group,
 543                                         SR_CONF_TIMEBASE, &gvar_list) != SR_OK) {
 544                                 printf("\n");
 545                                 continue;
 546                         }
 547                         printf(" - supported time bases:\n");
 548                         num_elements = g_variant_n_children(gvar_list);
 549                         for (i = 0; i < num_elements; i++) {
 550                                 gvar = g_variant_get_child_value(gvar_list, i);
 551                                 g_variant_get(gvar, "(tt)", &p, &q);
 552                                 s = sr_period_string(p * q);
 553                                 printf("      %s\n", s);
 554                                 g_free(s);
 555                         }
 556                         g_variant_unref(gvar_list);
 557
 558                 } else if (srci->key == SR_CONF_VDIV) {
 559                         /* Supported volts/div values */
 560                         printf("    %s", srci->id);
 561                         if (sr_config_list(sdi->driver, sdi, probe_group,
 562                                         SR_CONF_VDIV, &gvar_list) != SR_OK) {
 563                                 printf("\n");
 564                                 continue;
 565                         }
 566                         printf(" - supported volts/div:\n");
 567                         num_elements = g_variant_n_children(gvar_list);
 568                         for (i = 0; i < num_elements; i++) {
 569                                 gvar = g_variant_get_child_value(gvar_list, i);
 570                                 g_variant_get(gvar, "(tt)", &p, &q);
 571                                 s = sr_voltage_string(p, q);
 572                                 printf("      %s\n", s);
 573                                 g_free(s);
 574                         }
 575                         g_variant_unref(gvar_list);
 576
 577                 } else if (srci->datatype == SR_T_CHAR) {
 578                         printf("    %s: ", srci->id);
 579                         if (sr_config_get(sdi->driver, sdi, probe_group, srci->key,
 580                                         &gvar) == SR_OK) {
 581                                 tmp_str = g_strdup(g_variant_get_string(gvar, NULL));
 582                                 g_variant_unref(gvar);
 583                         } else
 584                                 tmp_str = NULL;
 585
 586                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
 587                                         &gvar) != SR_OK) {
 588                                 printf("\n");
 589                                 continue;
 590                         }
 591
 592                         stropts = g_variant_get_strv(gvar, &num_elements);
 593                         for (i = 0; i < num_elements; i++) {
 594                                 if (i)
 595                                         printf(", ");
 596                                 printf("%s", stropts[i]);
 597                                 if (tmp_str && !strcmp(tmp_str, stropts[i]))
 598                                         printf(" (current)");
 599                         }
 600                         printf("\n");
 601                         g_free(stropts);
 602                         g_free(tmp_str);
 603                         g_variant_unref(gvar);
 604
 605                 } else if (srci->datatype == SR_T_UINT64_RANGE) {
 606                         printf("    %s: ", srci->id);
 607                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
 608                                         &gvar_list) != SR_OK) {
 609                                 printf("\n");
 610                                 continue;
 611                         }
 612
 613                         if (sr_config_get(sdi->driver, sdi, NULL, srci->key, &gvar) == SR_OK) {
 614                                 g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
 615                                 g_variant_unref(gvar);
 616                         } else {
 617                                 cur_low = 0;
 618                                 cur_high = 0;
 619                         }
 620
 621                         num_elements = g_variant_n_children(gvar_list);
 622                         for (i = 0; i < num_elements; i++) {
 623                                 gvar = g_variant_get_child_value(gvar_list, i);
 624                                 g_variant_get(gvar, "(tt)", &low, &high);
 625                                 g_variant_unref(gvar);
 626                                 if (i)
 627                                         printf(", ");
 628                                 printf("%"PRIu64"-%"PRIu64, low, high);
 629                                 if (low == cur_low && high == cur_high)
 630                                         printf(" (current)");
 631                         }
 632                         printf("\n");
 633                         g_variant_unref(gvar_list);
 634
 635                 } else if (srci->datatype == SR_T_BOOL) {
 636                         printf("    %s: ", srci->id);
 637                         if (sr_config_get(sdi->driver, sdi, NULL, srci->key,
 638                                         &gvar) == SR_OK) {
 639                                 if (g_variant_get_boolean(gvar))
 640                                         printf("on (current), off\n");
 641                                 else
 642                                         printf("on, off (current)\n");
 643                                 g_variant_unref(gvar);
 644                         } else
 645                                 printf("on, off\n");
 646
 647                 } else {
 648
 649                         /* Everything else */
 650                         printf("    %s\n", srci->id);
 651                 }
 652         }
 653         g_variant_unref(gvar_opts);
 654
 655         sr_dev_close(sdi);
 656         g_slist_free(devices);
 657
 658 }
 659
 660 #ifdef HAVE_SRD
 661 static void show_pd_detail(void)
 662 {
 663         GSList *l;
 664         struct srd_decoder *dec;
 665         struct srd_decoder_option *o;
 666         char **pdtokens, **pdtok, *optsep, **ann, *val, *doc;
 667         struct srd_probe *p;
 668
 669         pdtokens = g_strsplit(opt_pds, ",", -1);
 670         for (pdtok = pdtokens; *pdtok; pdtok++) {
 671                 /* Strip options. */
 672                 if ((optsep = strchr(*pdtok, ':')))
 673                         *optsep = '\0';
 674                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 675                         g_critical("Protocol decoder %s not found.", *pdtok);
 676                         return;
 677                 }
 678                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 679                                 dec->id, dec->name, dec->longname, dec->desc);
 680                 printf("License: %s\n", dec->license);
 681                 printf("Annotations:\n");
 682                 if (dec->annotations) {
 683                         for (l = dec->annotations; l; l = l->next) {
 684                                 ann = l->data;
 685                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 686                         }
 687                 } else {
 688                         printf("None.\n");
 689                 }
 690                 printf("Required probes:\n");
 691                 if (dec->probes) {
 692                         for (l = dec->probes; l; l = l->next) {
 693                                 p = l->data;
 694                                 printf("- %s (%s): %s\n",
 695                                        p->name, p->id, p->desc);
 696                         }
 697                 } else {
 698                         printf("None.\n");
 699                 }
 700                 printf("Optional probes:\n");
 701                 if (dec->opt_probes) {
 702                         for (l = dec->opt_probes; l; l = l->next) {
 703                                 p = l->data;
 704                                 printf("- %s (%s): %s\n",
 705                                        p->name, p->id, p->desc);
 706                         }
 707                 } else {
 708                         printf("None.\n");
 709                 }
 710                 if (dec->options) {
 711                         printf("Options:\n");
 712                         for (l = dec->options; l; l = l->next) {
 713                                 o = l->data;
 714                                 val = g_variant_print(o->def, FALSE);
 715                                 printf("- %s: %s (default %s)\n", o->id, o->desc, val);
 716                                 g_free(val);
 717                         }
 718                 }
 719                 if ((doc = srd_decoder_doc_get(dec))) {
 720                         printf("Documentation:\n%s\n",
 721                                doc[0] == '\n' ? doc + 1 : doc);
 722                         g_free(doc);
 723                 }
 724         }
 725
 726         g_strfreev(pdtokens);
 727 }
 728 #endif
 729
 730 static GArray *get_enabled_logic_probes(const struct sr_dev_inst *sdi)
 731 {
 732         struct sr_probe *probe;
 733         GArray *probes;
 734         GSList *l;
 735
 736         probes = g_array_new(FALSE, FALSE, sizeof(int));
 737         for (l = sdi->probes; l; l = l->next) {
 738                 probe = l->data;
 739                 if (probe->type != SR_PROBE_LOGIC)
 740                         continue;
 741                 if (probe->enabled != TRUE)
 742                         continue;
 743                 g_array_append_val(probes, probe->index);
 744         }
 745
 746         return probes;
 747 }
 748
 749 static void datafeed_in(const struct sr_dev_inst *sdi,
 750                 const struct sr_datafeed_packet *packet, void *cb_data)
 751 {
 752         const struct sr_datafeed_meta *meta;
 753         const struct sr_datafeed_logic *logic;
 754         const struct sr_datafeed_analog *analog;
 755         struct sr_config *src;
 756         static struct sr_output *o = NULL;
 757         static GArray *logic_probelist = NULL;
 758         static uint64_t received_samples = 0;
 759         static int unitsize = 0;
 760         static int triggered = 0;
 761         static FILE *outfile = NULL;
 762         GSList *l;
 763         GString *out;
 764         int sample_size, ret;
 765         uint64_t samplerate, output_len, filter_out_len, end_sample;
 766         uint8_t *output_buf, *filter_out;
 767
 768         (void) cb_data;
 769
 770         /* If the first packet to come in isn't a header, don't even try. */
 771         if (packet->type != SR_DF_HEADER && o == NULL)
 772                 return;
 773
 774         sample_size = -1;
 775         switch (packet->type) {
 776         case SR_DF_HEADER:
 777                 g_debug("cli: Received SR_DF_HEADER");
 778                 /* Initialize the output module. */
 779                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 780                         g_critical("Output module malloc failed.");
 781                         exit(1);
 782                 }
 783                 o->format = output_format;
 784                 o->sdi = (struct sr_dev_inst *)sdi;
 785                 o->param = output_format_param;
 786                 if (o->format->init) {
 787                         if (o->format->init(o) != SR_OK) {
 788                                 g_critical("Output format initialization failed.");
 789                                 exit(1);
 790                         }
 791                 }
 792
 793                 /* Prepare non-stdout output. */
 794                 outfile = stdout;
 795                 if (opt_output_file) {
 796                         if (default_output_format) {
 797                                 /* output file is in session format, so we'll
 798                                  * keep a copy of everything as it comes in
 799                                  * and save from there after the session. */
 800                                 outfile = NULL;
 801                                 savebuf = g_byte_array_new();
 802                         } else {
 803                                 /* saving to a file in whatever format was set
 804                                  * with --format, so all we need is a filehandle */
 805                                 outfile = g_fopen(opt_output_file, "wb");
 806                         }
 807                 }
 808
 809                 /* Prepare for logic data. */
 810                 logic_probelist = get_enabled_logic_probes(sdi);
 811                 /* How many bytes we need to store the packed samples. */
 812                 unitsize = (logic_probelist->len + 7) / 8;
 813
 814 #ifdef HAVE_SRD
 815                 GVariant *gvar;
 816                 if (opt_pds && logic_probelist->len) {
 817                         if (sr_config_get(sdi->driver, sdi, NULL, SR_CONF_SAMPLERATE,
 818                                         &gvar) == SR_OK) {
 819                                 samplerate = g_variant_get_uint64(gvar);
 820                                 g_variant_unref(gvar);
 821                                 if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
 822                                                 g_variant_new_uint64(samplerate)) != SRD_OK) {
 823                                         g_critical("Failed to configure decode session.");
 824                                         break;
 825                                 }
 826                         }
 827                         if (srd_session_start(srd_sess) != SRD_OK) {
 828                                 g_critical("Failed to start decode session.");
 829                                 break;
 830                         }
 831                 }
 832 #endif
 833                 break;
 834
 835         case SR_DF_META:
 836                 g_debug("cli: received SR_DF_META");
 837                 meta = packet->payload;
 838                 for (l = meta->config; l; l = l->next) {
 839                         src = l->data;
 840                         switch (src->key) {
 841                         case SR_CONF_SAMPLERATE:
 842                                 samplerate = g_variant_get_uint64(src->data);
 843                                 g_debug("cli: got samplerate %"PRIu64" Hz", samplerate);
 844 #ifdef HAVE_SRD
 845                                 if (opt_pds) {
 846                                         if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
 847                                                         g_variant_new_uint64(samplerate)) != SRD_OK) {
 848                                                 g_critical("Failed to pass samplerate to decoder.");
 849                                         }
 850                                 }
 851 #endif
 852                                 break;
 853                         case SR_CONF_SAMPLE_INTERVAL:
 854                                 samplerate = g_variant_get_uint64(src->data);
 855                                 g_debug("cli: got sample interval %"PRIu64" ms", samplerate);
 856                                 break;
 857                         default:
 858                                 /* Unknown metadata is not an error. */
 859                                 break;
 860                         }
 861                 }
 862                 break;
 863
 864         case SR_DF_TRIGGER:
 865                 g_debug("cli: received SR_DF_TRIGGER");
 866                 if (o->format->event)
 867                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 868                                          &output_len);
 869                 triggered = 1;
 870                 break;
 871
 872         case SR_DF_LOGIC:
 873                 logic = packet->payload;
 874                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 875                 sample_size = logic->unitsize;
 876                 if (logic->length == 0)
 877                         break;
 878
 879                 /* Don't store any samples until triggered. */
 880                 if (opt_wait_trigger && !triggered)
 881                         break;
 882
 883                 if (limit_samples && received_samples >= limit_samples)
 884                         break;
 885
 886                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 887                                 logic->data, logic->length,
 888                                 &filter_out, &filter_out_len);
 889                 if (ret != SR_OK)
 890                         break;
 891
 892                 /*
 893                  * What comes out of the filter is guaranteed to be packed into the
 894                  * minimum size needed to support the number of samples at this sample
 895                  * size. however, the driver may have submitted too much. Cut off
 896                  * the buffer of the last packet according to the sample limit.
 897                  */
 898                 if (limit_samples && (received_samples + logic->length / sample_size >
 899                                 limit_samples * sample_size))
 900                         filter_out_len = limit_samples * sample_size - received_samples;
 901
 902                 if (opt_output_file && default_output_format) {
 903                         /* Saving to a session file. */
 904                         g_byte_array_append(savebuf, filter_out, filter_out_len);
 905                 } else {
 906                         if (opt_pds) {
 907 #ifdef HAVE_SRD
 908                                 end_sample = received_samples + filter_out_len / unitsize;
 909                                 if (srd_session_send(srd_sess, received_samples, end_sample,
 910                                                 (uint8_t*)filter_out, filter_out_len) != SRD_OK)
 911                                         sr_session_stop();
 912 #endif
 913                         } else {
 914                                 output_len = 0;
 915                                 if (o->format->data && packet->type == o->format->df_type)
 916                                         o->format->data(o, filter_out, filter_out_len,
 917                                                         &output_buf, &output_len);
 918                                 if (output_len) {
 919                                         fwrite(output_buf, 1, output_len, outfile);
 920                                         fflush(outfile);
 921                                         g_free(output_buf);
 922                                 }
 923                         }
 924                 }
 925                 g_free(filter_out);
 926
 927                 received_samples += logic->length / sample_size;
 928                 break;
 929
 930         case SR_DF_ANALOG:
 931                 analog = packet->payload;
 932                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 933                 if (analog->num_samples == 0)
 934                         break;
 935
 936                 if (limit_samples && received_samples >= limit_samples)
 937                         break;
 938
 939                 if (o->format->data && packet->type == o->format->df_type) {
 940                         o->format->data(o, (const uint8_t *)analog->data,
 941                                         analog->num_samples * sizeof(float),
 942                                         &output_buf, &output_len);
 943                         if (output_buf) {
 944                                 fwrite(output_buf, 1, output_len, outfile);
 945                                 fflush(outfile);
 946                                 g_free(output_buf);
 947                         }
 948                 }
 949
 950                 received_samples += analog->num_samples;
 951                 break;
 952
 953         case SR_DF_FRAME_BEGIN:
 954                 g_debug("cli: received SR_DF_FRAME_BEGIN");
 955                 if (o->format->event) {
 956                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
 957                                          &output_len);
 958                         if (output_buf) {
 959                                 fwrite(output_buf, 1, output_len, outfile);
 960                                 fflush(outfile);
 961                                 g_free(output_buf);
 962                         }
 963                 }
 964                 break;
 965
 966         case SR_DF_FRAME_END:
 967                 g_debug("cli: received SR_DF_FRAME_END");
 968                 if (o->format->event) {
 969                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
 970                                          &output_len);
 971                         if (output_buf) {
 972                                 fwrite(output_buf, 1, output_len, outfile);
 973                                 fflush(outfile);
 974                                 g_free(output_buf);
 975                         }
 976                 }
 977                 break;
 978
 979         default:
 980                 break;
 981         }
 982
 983         if (o && o->format->receive) {
 984                 if (o->format->receive(o, sdi, packet, &out) == SR_OK && out) {
 985                         fwrite(out->str, 1, out->len, outfile);
 986                         fflush(outfile);
 987                         g_string_free(out, TRUE);
 988                 }
 989         }
 990
 991         /* SR_DF_END needs to be handled after the output module's receive()
 992          * is called, so it can properly clean up that module etc. */
 993         if (packet->type == SR_DF_END) {
 994                 g_debug("cli: Received SR_DF_END");
 995
 996                 if (o->format->event) {
 997                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 998                         if (output_buf) {
 999                                 if (outfile)
1000                                         fwrite(output_buf, 1, output_len, outfile);
1001                                 g_free(output_buf);
1002                                 output_len = 0;
1003                         }
1004                 }
1005
1006                 if (limit_samples && received_samples < limit_samples)
1007                         g_warning("Device only sent %" PRIu64 " samples.",
1008                                received_samples);
1009
1010                 if (opt_continuous)
1011                         g_warning("Device stopped after %" PRIu64 " samples.",
1012                                received_samples);
1013
1014                 g_array_free(logic_probelist, TRUE);
1015
1016                 if (o->format->cleanup)
1017                         o->format->cleanup(o);
1018                 g_free(o);
1019                 o = NULL;
1020
1021                 if (outfile && outfile != stdout)
1022                         fclose(outfile);
1023
1024                 if (opt_output_file && default_output_format && savebuf->len) {
1025                         if (sr_session_save(opt_output_file, sdi, savebuf->data,
1026                                         unitsize, savebuf->len / unitsize) != SR_OK)
1027                                 g_critical("Failed to save session.");
1028                         g_byte_array_free(savebuf, FALSE);
1029                 }
1030         }
1031
1032 }
1033
1034 #ifdef HAVE_SRD
1035 static int opts_to_gvar(struct srd_decoder *dec, GHashTable *hash,
1036                 GHashTable **options)
1037 {
1038         struct srd_decoder_option *o;
1039         GSList *optl;
1040         GVariant *gvar;
1041         gint64 val_int;
1042         int ret;
1043         char *val_str, *conv;
1044
1045         ret = TRUE;
1046         *options = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
1047                         (GDestroyNotify)g_variant_unref);
1048
1049         for (optl = dec->options; optl; optl = optl->next) {
1050                 o = optl->data;
1051                 if (!(val_str = g_hash_table_lookup(hash, o->id)))
1052                         /* Not specified. */
1053                         continue;
1054                 if (g_variant_is_of_type(o->def, G_VARIANT_TYPE_STRING)) {
1055                         gvar = g_variant_new_string(val_str);
1056                 } else if (g_variant_is_of_type(o->def, G_VARIANT_TYPE_INT64)) {
1057                         val_int = strtoll(val_str, &conv, 0);
1058                         if (!conv || conv == val_str) {
1059                                 g_critical("Protocol decoder '%s' option '%s' "
1060                                                 "requires a number.", dec->name, o->id);
1061                                 ret = FALSE;
1062                                 break;
1063                         }
1064                         gvar = g_variant_new_int64(val_int);
1065                 } else {
1066                         g_critical("Unsupported type for option '%s' (%s)",
1067                                         o->id, g_variant_get_type_string(o->def));
1068                         ret = FALSE;
1069                         break;
1070                 }
1071                 g_variant_ref_sink(gvar);
1072                 g_hash_table_insert(*options, g_strdup(o->id), gvar);
1073                 g_hash_table_remove(hash, o->id);
1074         }
1075
1076         return ret;
1077 }
1078
1079 static int probes_to_gvar(struct srd_decoder *dec, GHashTable *hash,
1080                 GHashTable **probes)
1081 {
1082         struct srd_probe *p;
1083         GSList *all_probes, *l;
1084         GVariant *gvar;
1085         gint32 val_int;
1086         int ret;
1087         char *val_str, *conv;
1088
1089         ret = TRUE;
1090         *probes = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
1091                         (GDestroyNotify)g_variant_unref);
1092
1093         all_probes = g_slist_copy(dec->probes);
1094         all_probes = g_slist_concat(all_probes, g_slist_copy(dec->opt_probes));
1095         for (l = all_probes; l; l = l->next) {
1096                 p = l->data;
1097                 if (!(val_str = g_hash_table_lookup(hash, p->id)))
1098                         /* Not specified. */
1099                         continue;
1100                 val_int = strtoll(val_str, &conv, 10);
1101                 if (!conv || conv == val_str) {
1102                         g_critical("Protocol decoder '%s' probes '%s' "
1103                                         "is not a number.", dec->name, p->id);
1104                         ret = FALSE;
1105                         break;
1106                 }
1107                 gvar = g_variant_new_int32(val_int);
1108                 g_variant_ref_sink(gvar);
1109                 g_hash_table_insert(*probes, g_strdup(p->id), gvar);
1110                 g_hash_table_remove(hash, p->id);
1111         }
1112         g_slist_free(all_probes);
1113
1114         return ret;
1115 }
1116
1117 /* Register the given PDs for this session.
1118  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
1119  * That will instantiate two SPI decoders on the clock but different data
1120  * lines.
1121  */
1122 static int register_pds(struct sr_dev *dev, const char *pdstring)
1123 {
1124         struct srd_decoder *dec;
1125         GHashTable *pd_opthash, *options, *probes;
1126         GList *leftover, *l;
1127         struct srd_decoder_inst *di;
1128         int ret;
1129         char **pdtokens, **pdtok, *pd_name;
1130
1131         (void)dev;
1132
1133         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
1134                         g_free, NULL);
1135         ret = 0;
1136         pd_name = NULL;
1137         pd_opthash = options = probes = NULL;
1138         pdtokens = g_strsplit(pdstring, ",", 0);
1139         for (pdtok = pdtokens; *pdtok; pdtok++) {
1140                 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
1141                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
1142                         break;
1143                 }
1144
1145                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
1146                 g_hash_table_remove(pd_opthash, "sigrok_key");
1147                 if (srd_decoder_load(pd_name) != SRD_OK) {
1148                         g_critical("Failed to load protocol decoder %s.", pd_name);
1149                         ret = 1;
1150                         break;
1151                 }
1152                 dec = srd_decoder_get_by_id(pd_name);
1153
1154                 /* Convert decoder option and probe values to GVariant. */
1155                 if (!opts_to_gvar(dec, pd_opthash, &options)) {
1156                         ret = 1;
1157                         break;
1158                 }
1159                 if (!probes_to_gvar(dec, pd_opthash, &probes)) {
1160                         ret = 1;
1161                         break;
1162                 }
1163                 if (g_hash_table_size(pd_opthash) > 0) {
1164                         leftover = g_hash_table_get_keys(pd_opthash);
1165                         for (l = leftover; l; l = l->next)
1166                                 g_critical("Unknown option or probe '%s'", (char *)l->data);
1167                         g_list_free(leftover);
1168                         break;
1169                 }
1170
1171                 if (!(di = srd_inst_new(srd_sess, pd_name, options))) {
1172                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
1173                         ret = 1;
1174                         break;
1175                 }
1176
1177                 /* If no annotation list was specified, add them all in now.
1178                  * This will be pared down later to leave only the last PD
1179                  * in the stack.
1180                  */
1181                 if (!opt_pd_annotations)
1182                         g_hash_table_insert(pd_ann_visible,
1183                                             g_strdup(di->inst_id), GINT_TO_POINTER(-1));
1184
1185                 /* Remap the probes if needed. */
1186                 if (srd_inst_probe_set_all(di, probes) != SRD_OK) {
1187                         ret = 1;
1188                         break;
1189                 }
1190         }
1191
1192         g_strfreev(pdtokens);
1193         if (pd_opthash)
1194                 g_hash_table_destroy(pd_opthash);
1195         if (options)
1196                 g_hash_table_destroy(options);
1197         if (probes)
1198                 g_hash_table_destroy(probes);
1199         if (pd_name)
1200                 g_free(pd_name);
1201
1202         return ret;
1203 }
1204
1205 int setup_pd_stack(void)
1206 {
1207         struct srd_decoder_inst *di_from, *di_to;
1208         int ret, i;
1209         char **pds, **ids;
1210
1211         /* Set up the protocol decoder stack. */
1212         pds = g_strsplit(opt_pds, ",", 0);
1213         if (g_strv_length(pds) > 1) {
1214                 if (opt_pd_stack) {
1215                         /* A stack setup was specified, use that. */
1216                         g_strfreev(pds);
1217                         pds = g_strsplit(opt_pd_stack, ",", 0);
1218                         if (g_strv_length(pds) < 2) {
1219                                 g_strfreev(pds);
1220                                 g_critical("Specify at least two protocol decoders to stack.");
1221                                 return 1;
1222                         }
1223                 }
1224
1225                 /* First PD goes at the bottom of the stack. */
1226                 ids = g_strsplit(pds[0], ":", 0);
1227                 if (!(di_from = srd_inst_find_by_id(srd_sess, ids[0]))) {
1228                         g_strfreev(ids);
1229                         g_critical("Cannot stack protocol decoder '%s': "
1230                                         "instance not found.", pds[0]);
1231                         return 1;
1232                 }
1233                 g_strfreev(ids);
1234
1235                 /* Every subsequent PD goes on top. */
1236                 for (i = 1; pds[i]; i++) {
1237                         ids = g_strsplit(pds[i], ":", 0);
1238                         if (!(di_to = srd_inst_find_by_id(srd_sess, ids[0]))) {
1239                                 g_strfreev(ids);
1240                                 g_critical("Cannot stack protocol decoder '%s': "
1241                                                 "instance not found.", pds[i]);
1242                                 return 1;
1243                         }
1244                         g_strfreev(ids);
1245                         if ((ret = srd_inst_stack(srd_sess, di_from, di_to)) != SRD_OK)
1246                                 return 1;
1247
1248                         /* Don't show annotation from this PD. Only the last PD in
1249                          * the stack will be left on the annotation list (unless
1250                          * the annotation list was specifically provided).
1251                          */
1252                         if (!opt_pd_annotations)
1253                                 g_hash_table_remove(pd_ann_visible,
1254                                                     di_from->inst_id);
1255
1256                         di_from = di_to;
1257                 }
1258         }
1259         g_strfreev(pds);
1260
1261         return 0;
1262 }
1263
1264 int setup_pd_annotations(void)
1265 {
1266         GSList *l;
1267         struct srd_decoder *dec;
1268         int ann_class;
1269         char **pds, **pdtok, **keyval, **ann_descr;
1270
1271         /* Set up custom list of PDs and annotations to show. */
1272         pds = g_strsplit(opt_pd_annotations, ",", 0);
1273         for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
1274                 keyval = g_strsplit(*pdtok, "=", 0);
1275                 if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
1276                         g_critical("Protocol decoder '%s' not found.", keyval[0]);
1277                         return 1;
1278                 }
1279                 if (!dec->annotations) {
1280                         g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
1281                         return 1;
1282                 }
1283                 ann_class = 0;
1284                 if (g_strv_length(keyval) == 2) {
1285                         for (l = dec->annotations; l; l = l->next, ann_class++) {
1286                                 ann_descr = l->data;
1287                                 if (!canon_cmp(ann_descr[0], keyval[1]))
1288                                         /* Found it. */
1289                                         break;
1290                         }
1291                         if (!l) {
1292                                 g_critical("Annotation '%s' not found "
1293                                                 "for protocol decoder '%s'.", keyval[1], keyval[0]);
1294                                 return 1;
1295                         }
1296                         g_debug("cli: Showing protocol decoder %s annotation "
1297                                         "class %d (%s).", keyval[0], ann_class, ann_descr[0]);
1298                 } else {
1299                         /* No class specified: show all of them. */
1300                         ann_class = -1;
1301                         g_debug("cli: Showing all annotation classes for protocol "
1302                                         "decoder %s.", keyval[0]);
1303                 }
1304                 g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann_class));
1305                 g_strfreev(keyval);
1306         }
1307         g_strfreev(pds);
1308
1309         return 0;
1310 }
1311
1312 int setup_pd_meta(void)
1313 {
1314         struct srd_decoder *dec;
1315         char **pds, **pdtok;
1316
1317         pd_meta_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
1318                         g_free, NULL);
1319         pds = g_strsplit(opt_pd_meta, ",", 0);
1320         for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
1321                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
1322                         g_critical("Protocol decoder '%s' not found.", *pdtok);
1323                         return 1;
1324                 }
1325                 g_debug("cli: Showing protocol decoder meta output from '%s'.", *pdtok);
1326                 g_hash_table_insert(pd_meta_visible, g_strdup(*pdtok), NULL);
1327         }
1328         g_strfreev(pds);
1329
1330         return 0;
1331 }
1332
1333 int setup_pd_binary(void)
1334 {
1335         GSList *l;
1336         struct srd_decoder *dec;
1337         int bin_class;
1338         char **pds, **pdtok, **keyval, *bin_name;
1339
1340         pd_binary_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
1341                         g_free, NULL);
1342         pds = g_strsplit(opt_pd_binary, ",", 0);
1343         for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
1344                 keyval = g_strsplit(*pdtok, "=", 0);
1345                 if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
1346                         g_critical("Protocol decoder '%s' not found.", keyval[0]);
1347                         return 1;
1348                 }
1349                 if (!dec->binary) {
1350                         g_critical("Protocol decoder '%s' has no binary output.", keyval[0]);
1351                         return 1;
1352                 }
1353                 bin_class = 0;
1354                 if (g_strv_length(keyval) == 2) {
1355                         for (l = dec->binary; l; l = l->next, bin_class++) {
1356                                 bin_name = l->data;
1357                                 if (!canon_cmp(bin_name, keyval[1]))
1358                                         /* Found it. */
1359                                         break;
1360                         }
1361                         if (!l) {
1362                                 g_critical("binary output '%s' not found "
1363                                                 "for protocol decoder '%s'.", keyval[1], keyval[0]);
1364                                 return 1;
1365                         }
1366                         g_debug("cli: Showing protocol decoder %s binary class "
1367                                         "%d (%s).", keyval[0], bin_class, bin_name);
1368                 } else {
1369                         /* No class specified: output all of them. */
1370                         bin_class = -1;
1371                         g_debug("cli: Showing all binary classes for protocol "
1372                                         "decoder %s.", keyval[0]);
1373                 }
1374                 g_hash_table_insert(pd_binary_visible, g_strdup(keyval[0]), GINT_TO_POINTER(bin_class));
1375                 g_strfreev(keyval);
1376         }
1377         g_strfreev(pds);
1378
1379         return 0;
1380 }
1381
1382 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
1383 {
1384         struct srd_proto_data_annotation *pda;
1385         gpointer ann_format;
1386         int format;
1387
1388         /* 'cb_data' is not used in this specific callback. */
1389         (void)cb_data;
1390
1391         if (!pd_ann_visible)
1392                 return;
1393
1394         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
1395                         NULL, &ann_format))
1396                 /* Not in the list of PDs whose annotations we're showing. */
1397                 return;
1398
1399         format = GPOINTER_TO_INT(ann_format);
1400         pda = pdata->data;
1401         if (format != -1 && pda->ann_format != format)
1402                 /* We don't want this particular format from the PD. */
1403                 return;
1404
1405         if (opt_loglevel > SR_LOG_WARN)
1406                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1407         printf("%s: ", pdata->pdo->proto_id);
1408         /* Show only the longest annotation. */
1409         printf("\"%s\" ", pda->ann_text[0]);
1410         printf("\n");
1411         fflush(stdout);
1412 }
1413
1414 void show_pd_meta(struct srd_proto_data *pdata, void *cb_data)
1415 {
1416
1417         /* 'cb_data' is not used in this specific callback. */
1418         (void)cb_data;
1419
1420         if (!g_hash_table_lookup_extended(pd_meta_visible,
1421                         pdata->pdo->di->decoder->id, NULL, NULL))
1422                 /* Not in the list of PDs whose meta output we're showing. */
1423                 return;
1424
1425         if (opt_loglevel > SR_LOG_WARN)
1426                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1427         printf("%s: ", pdata->pdo->proto_id);
1428         printf("%s: %s", pdata->pdo->meta_name, g_variant_print(pdata->data, FALSE));
1429         printf("\n");
1430         fflush(stdout);
1431 }
1432
1433 void show_pd_binary(struct srd_proto_data *pdata, void *cb_data)
1434 {
1435         struct srd_proto_data_binary *pdb;
1436         gpointer classp;
1437         int class;
1438
1439         /* 'cb_data' is not used in this specific callback. */
1440         (void)cb_data;
1441
1442         if (!g_hash_table_lookup_extended(pd_binary_visible,
1443                         pdata->pdo->di->decoder->id, NULL, (void **)&classp))
1444                 /* Not in the list of PDs whose meta output we're showing. */
1445                 return;
1446
1447         class = GPOINTER_TO_INT(classp);
1448         pdb = pdata->data;
1449         if (class != -1 && class != pdb->bin_class)
1450                 /* Not showing this binary class. */
1451                 return;
1452
1453         /* Just send the binary output to stdout, no embellishments. */
1454         fwrite(pdb->data, pdb->size, 1, stdout);
1455         fflush(stdout);
1456 }
1457 #endif
1458
1459 int setup_output_format(void)
1460 {
1461         GHashTable *fmtargs;
1462         GHashTableIter iter;
1463         gpointer key, value;
1464         struct sr_output_format **outputs;
1465         int i;
1466         char *fmtspec;
1467
1468         if (opt_output_format && !strcmp(opt_output_format, "sigrok")) {
1469                 /* Doesn't really exist as an output module - this is
1470                  * the session save mode. */
1471                 g_free(opt_output_format);
1472                 opt_output_format = NULL;
1473         }
1474
1475         if (!opt_output_format) {
1476                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
1477                 /* we'll need to remember this so when saving to a file
1478                  * later, sigrok session format will be used.
1479                  */
1480                 default_output_format = TRUE;
1481         }
1482
1483         fmtargs = parse_generic_arg(opt_output_format, TRUE);
1484         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1485         if (!fmtspec) {
1486                 g_critical("Invalid output format.");
1487                 return 1;
1488         }
1489         outputs = sr_output_list();
1490         for (i = 0; outputs[i]; i++) {
1491                 if (strcmp(outputs[i]->id, fmtspec))
1492                         continue;
1493                 g_hash_table_remove(fmtargs, "sigrok_key");
1494                 output_format = outputs[i];
1495                 g_hash_table_iter_init(&iter, fmtargs);
1496                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1497                         /* only supporting one parameter per output module
1498                          * for now, and only its value */
1499                         output_format_param = g_strdup(value);
1500                         break;
1501                 }
1502                 break;
1503         }
1504         if (!output_format) {
1505                 g_critical("Invalid output format %s.", opt_output_format);
1506                 return 1;
1507         }
1508         g_hash_table_destroy(fmtargs);
1509
1510         return 0;
1511 }
1512
1513 static int select_probes(struct sr_dev_inst *sdi)
1514 {
1515         struct sr_probe *probe;
1516         GSList *selected_probes, *l;
1517
1518         if (!opt_probes)
1519                 return SR_OK;
1520
1521         if (!(selected_probes = parse_probestring(sdi, opt_probes)))
1522                 return SR_ERR;
1523
1524         for (l = sdi->probes; l; l = l->next) {
1525                 probe = l->data;
1526                 if (g_slist_find(selected_probes, probe))
1527                         probe->enabled = TRUE;
1528                 else
1529                         probe->enabled = FALSE;
1530         }
1531         g_slist_free(selected_probes);
1532
1533         return SR_OK;
1534 }
1535
1536 /**
1537  * Return the input file format which the CLI tool should use.
1538  *
1539  * If the user specified -I / --input-format, use that one. Otherwise, try to
1540  * autodetect the format as good as possible. Failing that, return NULL.
1541  *
1542  * @param filename The filename of the input file. Must not be NULL.
1543  * @param opt The -I / --input-file option the user specified (or NULL).
1544  *
1545  * @return A pointer to the 'struct sr_input_format' that should be used,
1546  *         or NULL if no input format was selected or auto-detected.
1547  */
1548 static struct sr_input_format *determine_input_file_format(
1549                         const char *filename, const char *opt)
1550 {
1551         int i;
1552         struct sr_input_format **inputs;
1553
1554         /* If there are no input formats, return NULL right away. */
1555         inputs = sr_input_list();
1556         if (!inputs) {
1557                 g_critical("No supported input formats available.");
1558                 return NULL;
1559         }
1560
1561         /* If the user specified -I / --input-format, use that one. */
1562         if (opt) {
1563                 for (i = 0; inputs[i]; i++) {
1564                         if (strcasecmp(inputs[i]->id, opt))
1565                                 continue;
1566                         g_debug("Using user-specified input file format '%s'.",
1567                                         inputs[i]->id);
1568                         return inputs[i];
1569                 }
1570
1571                 /* The user specified an unknown input format, return NULL. */
1572                 g_critical("Error: specified input file format '%s' is "
1573                         "unknown.", opt);
1574                 return NULL;
1575         }
1576
1577         /* Otherwise, try to find an input module that can handle this file. */
1578         for (i = 0; inputs[i]; i++) {
1579                 if (inputs[i]->format_match(filename))
1580                         break;
1581         }
1582
1583         /* Return NULL if no input module wanted to touch this. */
1584         if (!inputs[i]) {
1585                 g_critical("Error: no matching input module found.");
1586                 return NULL;
1587         }
1588
1589         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1590                 inputs[i]->id, filename);
1591
1592         return inputs[i];
1593 }
1594
1595 static void load_input_file_format(void)
1596 {
1597         GHashTable *fmtargs = NULL;
1598         struct stat st;
1599         struct sr_input *in;
1600         struct sr_input_format *input_format;
1601         char *fmtspec = NULL;
1602
1603         if (opt_input_format) {
1604                 fmtargs = parse_generic_arg(opt_input_format, TRUE);
1605                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1606         }
1607
1608         if (!(input_format = determine_input_file_format(opt_input_file,
1609                                                    fmtspec))) {
1610                 /* The exact cause was already logged. */
1611                 return;
1612         }
1613
1614         if (fmtargs)
1615                 g_hash_table_remove(fmtargs, "sigrok_key");
1616
1617         if (stat(opt_input_file, &st) == -1) {
1618                 g_critical("Failed to load %s: %s", opt_input_file,
1619                         strerror(errno));
1620                 exit(1);
1621         }
1622
1623         /* Initialize the input module. */
1624         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1625                 g_critical("Failed to allocate input module.");
1626                 exit(1);
1627         }
1628         in->format = input_format;
1629         in->param = fmtargs;
1630         if (in->format->init) {
1631                 if (in->format->init(in, opt_input_file) != SR_OK) {
1632                         g_critical("Input format init failed.");
1633                         exit(1);
1634                 }
1635         }
1636
1637         if (select_probes(in->sdi) > 0)
1638                 return;
1639
1640         sr_session_new();
1641         sr_session_datafeed_callback_add(datafeed_in, NULL);
1642         if (sr_session_dev_add(in->sdi) != SR_OK) {
1643                 g_critical("Failed to use device.");
1644                 sr_session_destroy();
1645                 return;
1646         }
1647
1648         input_format->loadfile(in, opt_input_file);
1649
1650         sr_session_destroy();
1651
1652         if (fmtargs)
1653                 g_hash_table_destroy(fmtargs);
1654 }
1655
1656 static void load_input_file(void)
1657 {
1658
1659         if (sr_session_load(opt_input_file) == SR_OK) {
1660                 /* sigrok session file */
1661                 sr_session_datafeed_callback_add(datafeed_in, NULL);
1662                 sr_session_start();
1663                 sr_session_run();
1664                 sr_session_stop();
1665         }
1666         else {
1667                 /* fall back on input modules */
1668                 load_input_file_format();
1669         }
1670 }
1671
1672 static int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
1673 {
1674         const struct sr_config_info *srci;
1675         struct sr_probe_group *pg;
1676         GHashTableIter iter;
1677         gpointer key, value;
1678         int ret;
1679         double tmp_double;
1680         uint64_t tmp_u64, p, q, low, high;
1681         gboolean tmp_bool;
1682         GVariant *val, *rational[2], *range[2];
1683
1684         g_hash_table_iter_init(&iter, args);
1685         while (g_hash_table_iter_next(&iter, &key, &value)) {
1686                 if (!(srci = sr_config_info_name_get(key))) {
1687                         g_critical("Unknown device option '%s'.", (char *) key);
1688                         return SR_ERR;
1689                 }
1690
1691                 if ((value == NULL) &&
1692                         (srci->datatype != SR_T_BOOL)) {
1693                         g_critical("Option '%s' needs a value.", (char *)key);
1694                         return SR_ERR;
1695                 }
1696                 val = NULL;
1697                 switch (srci->datatype) {
1698                 case SR_T_UINT64:
1699                         ret = sr_parse_sizestring(value, &tmp_u64);
1700                         if (ret != SR_OK)
1701                                 break;
1702                         val = g_variant_new_uint64(tmp_u64);
1703                         break;
1704                 case SR_T_CHAR:
1705                         val = g_variant_new_string(value);
1706                         break;
1707                 case SR_T_BOOL:
1708                         if (!value)
1709                                 tmp_bool = TRUE;
1710                         else
1711                                 tmp_bool = sr_parse_boolstring(value);
1712                         val = g_variant_new_boolean(tmp_bool);
1713                         break;
1714                 case SR_T_FLOAT:
1715                         tmp_double = strtof(value, NULL);
1716                         val = g_variant_new_double(tmp_double);
1717                         break;
1718                 case SR_T_RATIONAL_PERIOD:
1719                         if ((ret = sr_parse_period(value, &p, &q)) != SR_OK)
1720                                 break;
1721                         rational[0] = g_variant_new_uint64(p);
1722                         rational[1] = g_variant_new_uint64(q);
1723                         val = g_variant_new_tuple(rational, 2);
1724                         break;
1725                 case SR_T_RATIONAL_VOLT:
1726                         if ((ret = sr_parse_voltage(value, &p, &q)) != SR_OK)
1727                                 break;
1728                         rational[0] = g_variant_new_uint64(p);
1729                         rational[1] = g_variant_new_uint64(q);
1730                         val = g_variant_new_tuple(rational, 2);
1731                         break;
1732                 case SR_T_UINT64_RANGE:
1733                         if (sscanf(value, "%"PRIu64"-%"PRIu64, &low, &high) != 2) {
1734                                 ret = SR_ERR;
1735                                 break;
1736                         } else {
1737                                 range[0] = g_variant_new_uint64(low);
1738                                 range[1] = g_variant_new_uint64(high);
1739                                 val = g_variant_new_tuple(range, 2);
1740                         }
1741                         break;
1742                 default:
1743                         ret = SR_ERR;
1744                 }
1745                 if (val) {
1746                         pg = select_probe_group(sdi);
1747                         ret = sr_config_set(sdi, pg, srci->key, val);
1748                 }
1749                 if (ret != SR_OK) {
1750                         g_critical("Failed to set device option '%s'.", (char *)key);
1751                         return ret;
1752                 }
1753         }
1754
1755         return SR_OK;
1756 }
1757
1758 static void set_options(void)
1759 {
1760         struct sr_dev_inst *sdi;
1761         GSList *devices;
1762         GHashTable *devargs;
1763
1764         if (!opt_config) {
1765                 g_critical("No setting specified.");
1766                 return;
1767         }
1768
1769         if (!(devargs = parse_generic_arg(opt_config, FALSE)))
1770                 return;
1771
1772         if (!(devices = device_scan())) {
1773                 g_critical("No devices found.");
1774                 return;
1775         }
1776         sdi = devices->data;
1777
1778         if (sr_dev_open(sdi) != SR_OK) {
1779                 g_critical("Failed to open device.");
1780                 return;
1781         }
1782
1783         set_dev_options(sdi, devargs);
1784
1785         sr_dev_close(sdi);
1786         g_slist_free(devices);
1787         g_hash_table_destroy(devargs);
1788
1789 }
1790
1791 static int set_limit_time(const struct sr_dev_inst *sdi)
1792 {
1793         GVariant *gvar;
1794         uint64_t time_msec;
1795         uint64_t samplerate;
1796
1797         if (!(time_msec = sr_parse_timestring(opt_time))) {
1798                 g_critical("Invalid time '%s'", opt_time);
1799                 return SR_ERR;
1800         }
1801
1802         if (sr_dev_has_option(sdi, SR_CONF_LIMIT_MSEC)) {
1803                 gvar = g_variant_new_uint64(time_msec);
1804                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_MSEC, gvar) != SR_OK) {
1805                         g_critical("Failed to configure time limit.");
1806                         return SR_ERR;
1807                 }
1808         } else if (sr_dev_has_option(sdi, SR_CONF_SAMPLERATE)) {
1809                 /* Convert to samples based on the samplerate.  */
1810                 sr_config_get(sdi->driver, sdi, NULL, SR_CONF_SAMPLERATE, &gvar);
1811                 samplerate = g_variant_get_uint64(gvar);
1812                 g_variant_unref(gvar);
1813                 limit_samples = (samplerate) * time_msec / (uint64_t)1000;
1814                 if (limit_samples == 0) {
1815                         g_critical("Not enough time at this samplerate.");
1816                         return SR_ERR;
1817                 }
1818                 gvar = g_variant_new_uint64(limit_samples);
1819                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
1820                         g_critical("Failed to configure time-based sample limit.");
1821                         return SR_ERR;
1822                 }
1823         } else {
1824                 g_critical("This device does not support time limits.");
1825                 return SR_ERR;
1826         }
1827
1828         return SR_OK;
1829 }
1830
1831 static void run_session(void)
1832 {
1833         GSList *devices;
1834         GHashTable *devargs;
1835         GVariant *gvar;
1836         struct sr_dev_inst *sdi;
1837         int max_probes, i;
1838         char **triggerlist;
1839
1840         devices = device_scan();
1841         if (!devices) {
1842                 g_critical("No devices found.");
1843                 return;
1844         }
1845         if (g_slist_length(devices) > 1) {
1846                 g_critical("sigrok-cli only supports one device for capturing.");
1847                 return;
1848         }
1849         sdi = devices->data;
1850
1851         sr_session_new();
1852         sr_session_datafeed_callback_add(datafeed_in, NULL);
1853
1854         if (sr_dev_open(sdi) != SR_OK) {
1855                 g_critical("Failed to open device.");
1856                 return;
1857         }
1858
1859         if (sr_session_dev_add(sdi) != SR_OK) {
1860                 g_critical("Failed to add device to session.");
1861                 sr_session_destroy();
1862                 return;
1863         }
1864
1865         if (opt_config) {
1866                 if ((devargs = parse_generic_arg(opt_config, FALSE))) {
1867                         if (set_dev_options(sdi, devargs) != SR_OK)
1868                                 return;
1869                         g_hash_table_destroy(devargs);
1870                 }
1871         }
1872
1873         if (select_probes(sdi) != SR_OK) {
1874                 g_critical("Failed to set probes.");
1875                 sr_session_destroy();
1876                 return;
1877         }
1878
1879         if (opt_triggers) {
1880                 if (!(triggerlist = sr_parse_triggerstring(sdi, opt_triggers))) {
1881                         sr_session_destroy();
1882                         return;
1883                 }
1884                 max_probes = g_slist_length(sdi->probes);
1885                 for (i = 0; i < max_probes; i++) {
1886                         if (triggerlist[i]) {
1887                                 sr_dev_trigger_set(sdi, i, triggerlist[i]);
1888                                 g_free(triggerlist[i]);
1889                         }
1890                 }
1891                 g_free(triggerlist);
1892         }
1893
1894         if (opt_continuous) {
1895                 if (!sr_dev_has_option(sdi, SR_CONF_CONTINUOUS)) {
1896                         g_critical("This device does not support continuous sampling.");
1897                         sr_session_destroy();
1898                         return;
1899                 }
1900         }
1901
1902         if (opt_time) {
1903                 if (set_limit_time(sdi) != SR_OK) {
1904                         sr_session_destroy();
1905                         return;
1906                 }
1907         }
1908
1909         if (opt_samples) {
1910                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)) {
1911                         g_critical("Invalid sample limit '%s'.", opt_samples);
1912                         sr_session_destroy();
1913                         return;
1914                 }
1915                 gvar = g_variant_new_uint64(limit_samples);
1916                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
1917                         g_critical("Failed to configure sample limit.");
1918                         sr_session_destroy();
1919                         return;
1920                 }
1921         }
1922
1923         if (opt_frames) {
1924                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)) {
1925                         g_critical("Invalid sample limit '%s'.", opt_samples);
1926                         sr_session_destroy();
1927                         return;
1928                 }
1929                 gvar = g_variant_new_uint64(limit_frames);
1930                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) {
1931                         g_critical("Failed to configure frame limit.");
1932                         sr_session_destroy();
1933                         return;
1934                 }
1935         }
1936
1937         if (sr_session_start() != SR_OK) {
1938                 g_critical("Failed to start session.");
1939                 sr_session_destroy();
1940                 return;
1941         }
1942
1943         if (opt_continuous)
1944                 add_anykey();
1945
1946         sr_session_run();
1947
1948         if (opt_continuous)
1949                 clear_anykey();
1950
1951         sr_session_datafeed_callback_remove_all();
1952         sr_session_destroy();
1953         g_slist_free(devices);
1954
1955 }
1956
1957 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1958                    const gchar *message, gpointer cb_data)
1959 {
1960         (void)log_domain;
1961         (void)cb_data;
1962
1963         /*
1964          * All messages, warnings, errors etc. go to stderr (not stdout) in
1965          * order to not mess up the CLI tool data output, e.g. VCD output.
1966          */
1967         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1968                         || opt_loglevel > SR_LOG_WARN) {
1969                 fprintf(stderr, "%s\n", message);
1970                 fflush(stderr);
1971         }
1972
1973         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL))
1974                 exit(1);
1975
1976 }
1977
1978 int main(int argc, char **argv)
1979 {
1980         GOptionContext *context;
1981         GError *error;
1982         int ret;
1983         char *help;
1984
1985         g_log_set_default_handler(logger, NULL);
1986
1987         context = g_option_context_new(NULL);
1988         g_option_context_add_main_entries(context, optargs, NULL);
1989
1990         ret = 1;
1991         error = NULL;
1992         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1993                 g_critical("%s", error->message);
1994                 goto done;
1995         }
1996
1997         /* Set the loglevel (amount of messages to output) for libsigrok. */
1998         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1999                 goto done;
2000
2001         if (sr_init(&sr_ctx) != SR_OK)
2002                 goto done;
2003
2004 #ifdef HAVE_SRD
2005         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
2006         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
2007                 goto done;
2008
2009         if (opt_pds) {
2010                 if (srd_init(NULL) != SRD_OK)
2011                         goto done;
2012                 if (srd_session_new(&srd_sess) != SRD_OK) {
2013                         g_critical("Failed to create new decode session.");
2014                         goto done;
2015                 }
2016                 if (register_pds(NULL, opt_pds) != 0)
2017                         goto done;
2018                 if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_ANN,
2019                                 show_pd_annotations, NULL) != SRD_OK)
2020                         goto done;
2021                 if (setup_pd_stack() != 0)
2022                         goto done;
2023                 if (opt_pd_annotations)
2024                         if (setup_pd_annotations() != 0)
2025                                 goto done;
2026                 if (opt_pd_meta) {
2027                         if (setup_pd_meta() != 0)
2028                                 goto done;
2029                         if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_META,
2030                                         show_pd_meta, NULL) != SRD_OK)
2031                                 goto done;
2032                 }
2033         }
2034 #endif
2035
2036         if (setup_output_format() != 0)
2037                 goto done;
2038
2039         if (opt_version)
2040                 show_version();
2041         else if (opt_scan_devs)
2042                 show_dev_list();
2043 #ifdef HAVE_SRD
2044         else if (opt_pds && opt_show)
2045                 show_pd_detail();
2046 #endif
2047         else if (opt_show)
2048                 show_dev_detail();
2049         else if (opt_input_file)
2050                 load_input_file();
2051         else if (opt_set)
2052                 set_options();
2053         else if (opt_samples || opt_time || opt_frames || opt_continuous)
2054                 run_session();
2055         else {
2056                 help = g_option_context_get_help(context, TRUE, NULL);
2057                 printf("%s", help);
2058                 g_free(help);
2059         }
2060
2061 #ifdef HAVE_SRD
2062         if (opt_pds)
2063                 srd_exit();
2064 #endif
2065
2066         ret = 0;
2067
2068 done:
2069         if (sr_ctx)
2070                 sr_exit(sr_ctx);
2071
2072         g_option_context_free(context);
2073
2074         return ret;
2075 }