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 <libsigrok/libsigrok.h>
  34 #include "sigrok-cli.h"
  35 #include "config.h"
  36
  37 #define DEFAULT_OUTPUT_FORMAT "bits:width=64"
  38
  39 static struct sr_context *sr_ctx = NULL;
  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 GHashTable *pd_ann_visible = NULL;
  47 static struct sr_datastore *singleds = 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_drv = NULL;
  56 static gchar *opt_dev = NULL;
  57 static gchar *opt_probes = NULL;
  58 static gchar *opt_triggers = NULL;
  59 static gchar *opt_pds = NULL;
  60 static gchar *opt_pd_stack = NULL;
  61 static gchar *opt_pd_annotations = NULL;
  62 static gchar *opt_input_format = NULL;
  63 static gchar *opt_output_format = NULL;
  64 static gchar *opt_show = NULL;
  65 static gchar *opt_time = NULL;
  66 static gchar *opt_samples = NULL;
  67 static gchar *opt_frames = NULL;
  68 static gchar *opt_continuous = NULL;
  69
  70 static GOptionEntry optargs[] = {
  71         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
  72                         "Show version and support list", NULL},
  73         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
  74                         "Set libsigrok/libsigrokdecode loglevel", NULL},
  75         {"list-devices", 'D', 0, G_OPTION_ARG_NONE, &opt_list_devs,
  76                         "Scan for devices", NULL},
  77         {"driver", 0, 0, G_OPTION_ARG_STRING, &opt_drv,
  78                         "Use only this driver", NULL},
  79         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev,
  80                         "Use specified device", NULL},
  81         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
  82                         "Load input from file", NULL},
  83         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
  84                         "Input format", NULL},
  85         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
  86                         "Save output to file", NULL},
  87         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
  88                         "Output format", NULL},
  89         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
  90                         "Probes to use", NULL},
  91         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
  92                         "Trigger configuration", NULL},
  93         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
  94                         "Wait for trigger", NULL},
  95         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds,
  96                         "Protocol decoders to run", NULL},
  97         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
  98                         "Protocol decoder stack", NULL},
  99         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
 100                         "Protocol decoder annotation(s) to show", NULL},
 101         {"show", 0, 0, G_OPTION_ARG_NONE, &opt_show,
 102                         "Show device detail", NULL},
 103         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
 104                         "How long to sample (ms)", NULL},
 105         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
 106                         "Number of samples to acquire", NULL},
 107         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
 108                         "Number of frames to acquire", NULL},
 109         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
 110                         "Sample continuously", NULL},
 111         {NULL, 0, 0, 0, NULL, NULL, NULL}
 112 };
 113
 114
 115 /* Convert driver options hash to GSList of struct sr_hwopt. */
 116 static GSList *hash_to_hwopt(GHashTable *hash)
 117 {
 118         const struct sr_hwcap_option *hwo;
 119         struct sr_hwopt *hwopt;
 120         GList *gl, *keys;
 121         GSList *opts;
 122         char *key, *value;
 123
 124         keys = g_hash_table_get_keys(hash);
 125         opts = NULL;
 126         for (gl = keys; gl; gl = gl->next) {
 127                 key = gl->data;
 128                 if (!(hwo = sr_drvopt_name_get(key))) {
 129                         g_critical("Unknown option %s", key);
 130                         return NULL;
 131                 }
 132                 hwopt = g_try_malloc(sizeof(struct sr_hwopt));
 133                 hwopt->hwopt = hwo->hwcap;
 134                 value = g_hash_table_lookup(hash, key);
 135                 hwopt->value = g_strdup(value);
 136                 opts = g_slist_append(opts, hwopt);
 137         }
 138         g_list_free(keys);
 139
 140         return opts;
 141 }
 142
 143 static GSList *device_scan(void)
 144 {
 145         struct sr_dev_driver **drivers, *driver;
 146         GHashTable *drvargs;
 147         GSList *drvopts, *devices, *tmpdevs, *l;
 148         int i;
 149         char *drvname;
 150
 151         if (opt_drv) {
 152                 drvargs = parse_generic_arg(opt_drv, TRUE);
 153                 drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
 154                 g_hash_table_remove(drvargs, "sigrok_key");
 155                 driver = NULL;
 156                 drivers = sr_driver_list();
 157                 for (i = 0; drivers[i]; i++) {
 158                         if (strcmp(drivers[i]->name, drvname))
 159                                 continue;
 160                         driver = drivers[i];
 161                 }
 162                 if (!driver) {
 163                         g_critical("Driver %s not found.", drvname);
 164                         return NULL;
 165                 }
 166                 g_free(drvname);
 167                 if (sr_driver_init(sr_ctx, driver) != SR_OK) {
 168                         g_critical("Failed to initialize driver.");
 169                         return NULL;
 170                 }
 171                 drvopts = NULL;
 172                 if (g_hash_table_size(drvargs) > 0)
 173                         if (!(drvopts = hash_to_hwopt(drvargs)))
 174                                 /* Unknown options, already logged. */
 175                                 return NULL;
 176                 devices = sr_driver_scan(driver, drvopts);
 177         } else {
 178                 /* No driver specified, let them all scan on their own. */
 179                 devices = NULL;
 180                 drivers = sr_driver_list();
 181                 for (i = 0; drivers[i]; i++) {
 182                         driver = drivers[i];
 183                         if (sr_driver_init(sr_ctx, driver) != SR_OK) {
 184                                 g_critical("Failed to initialize driver.");
 185                                 return NULL;
 186                         }
 187                         tmpdevs = sr_driver_scan(driver, NULL);
 188                         for (l = tmpdevs; l; l = l->next)
 189                                 devices = g_slist_append(devices, l->data);
 190                         g_slist_free(tmpdevs);
 191                 }
 192         }
 193
 194         return devices;
 195 }
 196
 197 static void show_version(void)
 198 {
 199         const GSList *l;
 200         struct sr_dev_driver **drivers;
 201         struct sr_input_format **inputs;
 202         struct sr_output_format **outputs;
 203         struct srd_decoder *dec;
 204         int i;
 205
 206         printf("sigrok-cli %s\n\n", VERSION);
 207
 208         printf("Using libsigrok %s (lib version %s).\n",
 209                sr_package_version_string_get(), sr_lib_version_string_get());
 210         printf("Using libsigrokdecode %s (lib version %s).\n\n",
 211                srd_package_version_string_get(), srd_lib_version_string_get());
 212
 213         printf("Supported hardware drivers:\n");
 214         drivers = sr_driver_list();
 215         for (i = 0; drivers[i]; i++) {
 216                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
 217         }
 218         printf("\n");
 219
 220         printf("Supported input formats:\n");
 221         inputs = sr_input_list();
 222         for (i = 0; inputs[i]; i++)
 223                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
 224         printf("\n");
 225
 226         printf("Supported output formats:\n");
 227         outputs = sr_output_list();
 228         for (i = 0; outputs[i]; i++)
 229                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
 230         printf("\n");
 231
 232         if (srd_init(NULL) == SRD_OK) {
 233                 printf("Supported protocol decoders:\n");
 234                 srd_decoder_load_all();
 235                 for (l = srd_decoder_list(); l; l = l->next) {
 236                         dec = l->data;
 237                         printf("  %-20s %s\n", dec->id, dec->longname);
 238                         /* Print protocol description upon "-l 3" or higher. */
 239                         if (opt_loglevel >= SR_LOG_INFO)
 240                                 printf("  %-20s %s\n", "", dec->desc);
 241                 }
 242                 srd_exit();
 243         }
 244         printf("\n");
 245 }
 246
 247 static void print_dev_line(const struct sr_dev_inst *sdi)
 248 {
 249         struct sr_probe *probe;
 250         GSList *l;
 251
 252         if (sdi->vendor && sdi->vendor[0])
 253                 printf("%s ", sdi->vendor);
 254         if (sdi->model && sdi->model[0])
 255                 printf("%s ", sdi->model);
 256         if (sdi->version && sdi->version[0])
 257                 printf("%s ", sdi->version);
 258         if (sdi->probes) {
 259                 if (g_slist_length(sdi->probes) == 1) {
 260                         probe = sdi->probes->data;
 261                         printf("with 1 probe: %s", probe->name);
 262                 } else {
 263                         printf("with %d probes:", g_slist_length(sdi->probes));
 264                         for (l = sdi->probes; l; l = l->next) {
 265                                 probe = l->data;
 266                                 printf(" %s", probe->name);
 267                         }
 268                 }
 269         }
 270         printf("\n");
 271 }
 272
 273 static void show_dev_list(void)
 274 {
 275         struct sr_dev_inst *sdi;
 276         GSList *devices, *l;
 277
 278         if (!(devices = device_scan()))
 279                 return;
 280
 281         printf("The following devices were found:\n");
 282         for (l = devices; l; l = l->next) {
 283                 sdi = l->data;
 284                 print_dev_line(sdi);
 285         }
 286         g_slist_free(devices);
 287
 288 }
 289
 290 static void show_dev_detail(void)
 291 {
 292         struct sr_dev_inst *sdi;
 293         const struct sr_hwcap_option *hwo;
 294         const struct sr_samplerates *samplerates;
 295         struct sr_rational *rationals;
 296         GSList *devices;
 297         uint64_t *integers;
 298         const int *hwopts, *hwcaps;
 299         int cap, num_devices, n, i;
 300         char *s, *title;
 301         const char *charopts, **stropts;
 302
 303         if (!(devices = device_scan())) {
 304                 g_critical("No devices found.");
 305                 return;
 306         }
 307
 308         num_devices = g_slist_length(devices);
 309         if (num_devices > 1) {
 310                 if (!opt_dev) {
 311                         g_critical("%d devices found. Use --list-devices to show them, "
 312                                         "and --device to select one.", num_devices);
 313                         return;
 314                 }
 315                 /* opt_dev is NULL if not specified, which is fine. */
 316                 n = strtol(opt_dev, NULL, 10);
 317                 if (n >= num_devices) {
 318                         g_critical("%d devices found, numbered starting from 0.",
 319                                         num_devices);
 320                         return;
 321                 }
 322                 sdi = g_slist_nth_data(devices, n);
 323         } else
 324                 sdi = g_slist_nth_data(devices, 0);
 325
 326         print_dev_line(sdi);
 327
 328         if (sr_info_get(sdi->driver, SR_DI_TRIGGER_TYPES, (const void **)&charopts,
 329                         sdi) == SR_OK && charopts) {
 330                 printf("Supported triggers: ");
 331                 while (*charopts) {
 332                         printf("%c ", *charopts);
 333                         charopts++;
 334                 }
 335                 printf("\n");
 336         }
 337
 338         if ((sr_info_get(sdi->driver, SR_DI_HWOPTS, (const void **)&hwopts,
 339                         NULL) == SR_OK) && hwopts) {
 340                 printf("Supported driver options:\n");
 341                 for (i = 0; hwopts[i]; i++) {
 342                         if (!(hwo = sr_drvopt_get(hwopts[i])))
 343                                 continue;
 344                         printf("    %s\n", hwo->shortname);
 345                 }
 346         }
 347
 348         title = "Supported device options:\n";
 349         if ((sr_info_get(sdi->driver, SR_DI_HWCAPS, (const void **)&hwcaps,
 350                         NULL) != SR_OK) || !hwcaps)
 351                 /* Driver supports no device instance options. */
 352                 return;
 353
 354         for (cap = 0; hwcaps[cap]; cap++) {
 355                 if (!(hwo = sr_devopt_get(hwcaps[cap])))
 356                         continue;
 357
 358                 if (title) {
 359                         printf("%s", title);
 360                         title = NULL;
 361                 }
 362
 363                 if (hwo->hwcap == SR_HWCAP_PATTERN_MODE) {
 364                         /* Pattern generator modes */
 365                         printf("    %s", hwo->shortname);
 366                         if (sr_info_get(sdi->driver, SR_DI_PATTERNS,
 367                                         (const void **)&stropts, sdi) == SR_OK) {
 368                                 printf(" - supported patterns:\n");
 369                                 for (i = 0; stropts[i]; i++)
 370                                         printf("      %s\n", stropts[i]);
 371                         } else {
 372                                 printf("\n");
 373                         }
 374
 375                 } else if (hwo->hwcap == SR_HWCAP_SAMPLERATE) {
 376                         /* Supported samplerates */
 377                         printf("    %s", hwo->shortname);
 378                         if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES,
 379                                         (const void **)&samplerates, sdi) != SR_OK) {
 380                                 printf("\n");
 381                                 continue;
 382                         }
 383                         if (samplerates->step) {
 384                                 /* low */
 385                                 if (!(s = sr_samplerate_string(samplerates->low)))
 386                                         continue;
 387                                 printf(" (%s", s);
 388                                 g_free(s);
 389                                 /* high */
 390                                 if (!(s = sr_samplerate_string(samplerates->high)))
 391                                         continue;
 392                                 printf(" - %s", s);
 393                                 g_free(s);
 394                                 /* step */
 395                                 if (!(s = sr_samplerate_string(samplerates->step)))
 396                                         continue;
 397                                 printf(" in steps of %s)\n", s);
 398                                 g_free(s);
 399                         } else {
 400                                 printf(" - supported samplerates:\n");
 401                                 for (i = 0; samplerates->list[i]; i++)
 402                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
 403                         }
 404
 405                 } else if (hwo->hwcap == SR_HWCAP_BUFFERSIZE) {
 406                         /* Supported buffer sizes */
 407                         printf("    %s", hwo->shortname);
 408                         if (sr_info_get(sdi->driver, SR_DI_BUFFERSIZES,
 409                                         (const void **)&integers, sdi) != SR_OK) {
 410                                 printf("\n");
 411                                 continue;
 412                         }
 413                         printf(" - supported buffer sizes:\n");
 414                         for (i = 0; integers[i]; i++)
 415                                 printf("      %"PRIu64"\n", integers[i]);
 416
 417                 } else if (hwo->hwcap == SR_HWCAP_TIMEBASE) {
 418                         /* Supported time bases */
 419                         printf("    %s", hwo->shortname);
 420                         if (sr_info_get(sdi->driver, SR_DI_TIMEBASES,
 421                                         (const void **)&rationals, sdi) != SR_OK) {
 422                                 printf("\n");
 423                                 continue;
 424                         }
 425                         printf(" - supported time bases:\n");
 426                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 427                                 printf("      %s\n", sr_period_string(
 428                                                 rationals[i].p * rationals[i].q));
 429
 430                 } else if (hwo->hwcap == SR_HWCAP_TRIGGER_SOURCE) {
 431                         /* Supported trigger sources */
 432                         printf("    %s", hwo->shortname);
 433                         if (sr_info_get(sdi->driver, SR_DI_TRIGGER_SOURCES,
 434                                         (const void **)&stropts, sdi) != SR_OK) {
 435                                 printf("\n");
 436                                 continue;
 437                         }
 438                         printf(" - supported trigger sources:\n");
 439                         for (i = 0; stropts[i]; i++)
 440                                 printf("      %s\n", stropts[i]);
 441
 442                 } else if (hwo->hwcap == SR_HWCAP_FILTER) {
 443                         /* Supported trigger sources */
 444                         printf("    %s", hwo->shortname);
 445                         if (sr_info_get(sdi->driver, SR_DI_FILTERS,
 446                                         (const void **)&stropts, sdi) != SR_OK) {
 447                                 printf("\n");
 448                                 continue;
 449                         }
 450                         printf(" - supported filter targets:\n");
 451                         for (i = 0; stropts[i]; i++)
 452                                 printf("      %s\n", stropts[i]);
 453
 454                 } else if (hwo->hwcap == SR_HWCAP_VDIV) {
 455                         /* Supported volts/div values */
 456                         printf("    %s", hwo->shortname);
 457                         if (sr_info_get(sdi->driver, SR_DI_VDIVS,
 458                                         (const void **)&rationals, sdi) != SR_OK) {
 459                                 printf("\n");
 460                                 continue;
 461                         }
 462                         printf(" - supported volts/div:\n");
 463                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 464                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
 465
 466                 } else if (hwo->hwcap == SR_HWCAP_COUPLING) {
 467                         /* Supported coupling settings */
 468                         printf("    %s", hwo->shortname);
 469                         if (sr_info_get(sdi->driver, SR_DI_COUPLING,
 470                                         (const void **)&stropts, sdi) != SR_OK) {
 471                                 printf("\n");
 472                                 continue;
 473                         }
 474                         printf(" - supported coupling options:\n");
 475                         for (i = 0; stropts[i]; i++)
 476                                 printf("      %s\n", stropts[i]);
 477
 478                 } else {
 479                         /* Everything else */
 480                         printf("    %s\n", hwo->shortname);
 481                 }
 482         }
 483
 484 }
 485
 486 static void show_pd_detail(void)
 487 {
 488         GSList *l;
 489         struct srd_decoder *dec;
 490         char **pdtokens, **pdtok, **ann, *doc;
 491         struct srd_probe *p;
 492
 493         pdtokens = g_strsplit(opt_pds, ",", -1);
 494         for (pdtok = pdtokens; *pdtok; pdtok++) {
 495                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 496                         g_critical("Protocol decoder %s not found.", *pdtok);
 497                         return;
 498                 }
 499                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 500                                 dec->id, dec->name, dec->longname, dec->desc);
 501                 printf("License: %s\n", dec->license);
 502                 printf("Annotations:\n");
 503                 if (dec->annotations) {
 504                         for (l = dec->annotations; l; l = l->next) {
 505                                 ann = l->data;
 506                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 507                         }
 508                 } else {
 509                         printf("None.\n");
 510                 }
 511                 /* TODO: Print supported decoder options. */
 512                 printf("Required probes:\n");
 513                 if (dec->probes) {
 514                         for (l = dec->probes; l; l = l->next) {
 515                                 p = l->data;
 516                                 printf("- %s (%s): %s\n",
 517                                        p->name, p->id, p->desc);
 518                         }
 519                 } else {
 520                         printf("None.\n");
 521                 }
 522                 printf("Optional probes:\n");
 523                 if (dec->opt_probes) {
 524                         for (l = dec->opt_probes; l; l = l->next) {
 525                                 p = l->data;
 526                                 printf("- %s (%s): %s\n",
 527                                        p->name, p->id, p->desc);
 528                         }
 529                 } else {
 530                         printf("None.\n");
 531                 }
 532                 if ((doc = srd_decoder_doc_get(dec))) {
 533                         printf("Documentation:\n%s\n",
 534                                doc[0] == '\n' ? doc + 1 : doc);
 535                         g_free(doc);
 536                 }
 537         }
 538
 539         g_strfreev(pdtokens);
 540 }
 541
 542 static void datafeed_in(const struct sr_dev_inst *sdi,
 543                 const struct sr_datafeed_packet *packet)
 544 {
 545         static struct sr_output *o = NULL;
 546         static int logic_probelist[SR_MAX_NUM_PROBES] = { -1 };
 547         static uint64_t received_samples = 0;
 548         static int unitsize = 0;
 549         static int triggered = 0;
 550         static FILE *outfile = NULL;
 551         struct sr_probe *probe;
 552         const struct sr_datafeed_logic *logic;
 553         const struct sr_datafeed_meta_logic *meta_logic;
 554         const struct sr_datafeed_analog *analog;
 555         int num_enabled_probes, sample_size, ret, i;
 556         uint64_t output_len, filter_out_len;
 557         uint8_t *output_buf, *filter_out;
 558         GString *out;
 559
 560         /* If the first packet to come in isn't a header, don't even try. */
 561         if (packet->type != SR_DF_HEADER && o == NULL)
 562                 return;
 563
 564         sample_size = -1;
 565         switch (packet->type) {
 566         case SR_DF_HEADER:
 567                 g_debug("cli: Received SR_DF_HEADER");
 568                 /* Initialize the output module. */
 569                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 570                         g_critical("Output module malloc failed.");
 571                         exit(1);
 572                 }
 573                 o->format = output_format;
 574                 o->sdi = (struct sr_dev_inst *)sdi;
 575                 o->param = output_format_param;
 576                 if (o->format->init) {
 577                         if (o->format->init(o) != SR_OK) {
 578                                 g_critical("Output format initialization failed.");
 579                                 exit(1);
 580                         }
 581                 }
 582                 break;
 583
 584         case SR_DF_END:
 585                 g_debug("cli: Received SR_DF_END");
 586                 if (!o) {
 587                         g_debug("cli: double end!");
 588                         break;
 589                 }
 590                 if (o->format->event) {
 591                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 592                         if (output_buf) {
 593                                 if (outfile)
 594                                         fwrite(output_buf, 1, output_len, outfile);
 595                                 g_free(output_buf);
 596                                 output_len = 0;
 597                         }
 598                 }
 599                 if (limit_samples && received_samples < limit_samples)
 600                         g_warning("Device only sent %" PRIu64 " samples.",
 601                                received_samples);
 602                 if (opt_continuous)
 603                         g_warning("Device stopped after %" PRIu64 " samples.",
 604                                received_samples);
 605                 if (outfile && outfile != stdout)
 606                         fclose(outfile);
 607
 608                 if (o->format->cleanup)
 609                         o->format->cleanup(o);
 610                 g_free(o);
 611                 o = NULL;
 612                 break;
 613
 614         case SR_DF_TRIGGER:
 615                 g_debug("cli: received SR_DF_TRIGGER");
 616                 if (o->format->event)
 617                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 618                                          &output_len);
 619                 triggered = 1;
 620                 break;
 621
 622         case SR_DF_META_LOGIC:
 623                 g_message("cli: Received SR_DF_META_LOGIC");
 624                 meta_logic = packet->payload;
 625                 num_enabled_probes = 0;
 626                 for (i = 0; i < meta_logic->num_probes; i++) {
 627                         probe = g_slist_nth_data(sdi->probes, i);
 628                         if (probe->enabled)
 629                                 logic_probelist[num_enabled_probes++] = probe->index;
 630                 }
 631                 logic_probelist[num_enabled_probes] = -1;
 632                 /* How many bytes we need to store num_enabled_probes bits */
 633                 unitsize = (num_enabled_probes + 7) / 8;
 634
 635                 outfile = stdout;
 636                 if (opt_output_file) {
 637                         if (default_output_format) {
 638                                 /* output file is in session format, which means we'll
 639                                  * dump everything in the datastore as it comes in,
 640                                  * and save from there after the session. */
 641                                 outfile = NULL;
 642                                 ret = sr_datastore_new(unitsize, &singleds);
 643                                 if (ret != SR_OK) {
 644                                         g_critical("Failed to create datastore.");
 645                                         exit(1);
 646                                 }
 647                         } else {
 648                                 /* saving to a file in whatever format was set
 649                                  * with --format, so all we need is a filehandle */
 650                                 outfile = g_fopen(opt_output_file, "wb");
 651                         }
 652                 }
 653                 if (opt_pds)
 654                         srd_session_start(num_enabled_probes, unitsize,
 655                                         meta_logic->samplerate);
 656                 break;
 657
 658         case SR_DF_LOGIC:
 659                 logic = packet->payload;
 660                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 661                 sample_size = logic->unitsize;
 662                 if (logic->length == 0)
 663                         break;
 664
 665                 /* Don't store any samples until triggered. */
 666                 if (opt_wait_trigger && !triggered)
 667                         break;
 668
 669                 if (limit_samples && received_samples >= limit_samples)
 670                         break;
 671
 672                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 673                                 logic->data, logic->length,
 674                                 &filter_out, &filter_out_len);
 675                 if (ret != SR_OK)
 676                         break;
 677
 678                 /* what comes out of the filter is guaranteed to be packed into the
 679                  * minimum size needed to support the number of samples at this sample
 680                  * size. however, the driver may have submitted too much -- cut off
 681                  * the buffer of the last packet according to the sample limit.
 682                  */
 683                 if (limit_samples && (received_samples + logic->length / sample_size >
 684                                 limit_samples * sample_size))
 685                         filter_out_len = limit_samples * sample_size - received_samples;
 686
 687                 if (singleds)
 688                         sr_datastore_put(singleds, filter_out,
 689                                         filter_out_len, sample_size, logic_probelist);
 690
 691                 if (opt_output_file && default_output_format)
 692                         /* saving to a session file, don't need to do anything else
 693                          * to this data for now. */
 694                         goto cleanup;
 695
 696                 if (opt_pds) {
 697                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
 698                                         filter_out_len) != SRD_OK)
 699                                 sr_session_stop();
 700                 } else {
 701                         output_len = 0;
 702                         if (o->format->data && packet->type == o->format->df_type)
 703                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 704                         if (output_buf) {
 705                                 fwrite(output_buf, 1, output_len, outfile);
 706                                 fflush(outfile);
 707                                 g_free(output_buf);
 708                         }
 709                 }
 710
 711                 cleanup:
 712                 g_free(filter_out);
 713                 received_samples += logic->length / sample_size;
 714                 break;
 715
 716         case SR_DF_META_ANALOG:
 717                 g_message("cli: Received SR_DF_META_ANALOG");
 718
 719                 outfile = stdout;
 720                 if (opt_output_file) {
 721                         if (default_output_format) {
 722                                 /* output file is in session format, which means we'll
 723                                  * dump everything in the datastore as it comes in,
 724                                  * and save from there after the session. */
 725                                 outfile = NULL;
 726                                 ret = sr_datastore_new(unitsize, &singleds);
 727                                 if (ret != SR_OK) {
 728                                         g_critical("Failed to create datastore.");
 729                                         exit(1);
 730                                 }
 731                         } else {
 732                                 /* saving to a file in whatever format was set
 733                                  * with --format, so all we need is a filehandle */
 734                                 outfile = g_fopen(opt_output_file, "wb");
 735                         }
 736                 }
 737                 break;
 738
 739         case SR_DF_ANALOG:
 740                 analog = packet->payload;
 741                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 742                 if (analog->num_samples == 0)
 743                         break;
 744
 745                 if (limit_samples && received_samples >= limit_samples)
 746                         break;
 747
 748                 if (o->format->data && packet->type == o->format->df_type) {
 749                         o->format->data(o, (const uint8_t *)analog->data,
 750                                         analog->num_samples * sizeof(float),
 751                                         &output_buf, &output_len);
 752                         if (output_buf) {
 753                                 fwrite(output_buf, 1, output_len, outfile);
 754                                 fflush(outfile);
 755                                 g_free(output_buf);
 756                         }
 757                 }
 758
 759                 received_samples += analog->num_samples;
 760                 break;
 761
 762         case SR_DF_FRAME_BEGIN:
 763                 g_debug("cli: received SR_DF_FRAME_BEGIN");
 764                 if (o->format->event) {
 765                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
 766                                          &output_len);
 767                         if (output_buf) {
 768                                 fwrite(output_buf, 1, output_len, outfile);
 769                                 fflush(outfile);
 770                                 g_free(output_buf);
 771                         }
 772                 }
 773                 break;
 774
 775         case SR_DF_FRAME_END:
 776                 g_debug("cli: received SR_DF_FRAME_END");
 777                 if (o->format->event) {
 778                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
 779                                          &output_len);
 780                         if (output_buf) {
 781                                 fwrite(output_buf, 1, output_len, outfile);
 782                                 fflush(outfile);
 783                                 g_free(output_buf);
 784                         }
 785                 }
 786                 break;
 787
 788         default:
 789                 g_message("received unknown packet type %d", packet->type);
 790         }
 791
 792         if (o && o->format->recv) {
 793                 out = o->format->recv(o, sdi, packet);
 794                 if (out && out->len) {
 795                         fwrite(out->str, 1, out->len, outfile);
 796                         fflush(outfile);
 797                 }
 798         }
 799
 800 }
 801
 802 /* Register the given PDs for this session.
 803  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 804  * That will instantiate two SPI decoders on the clock but different data
 805  * lines.
 806  */
 807 static int register_pds(struct sr_dev *dev, const char *pdstring)
 808 {
 809         GHashTable *pd_opthash;
 810         struct srd_decoder_inst *di;
 811         int ret;
 812         char **pdtokens, **pdtok, *pd_name;
 813
 814         (void)dev;
 815
 816         ret = 0;
 817         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
 818                         g_free, NULL);
 819         pd_name = NULL;
 820         pd_opthash = NULL;
 821         pdtokens = g_strsplit(pdstring, ",", 0);
 822         for (pdtok = pdtokens; *pdtok; pdtok++) {
 823                 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
 824                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
 825                         goto err_out;
 826                 }
 827
 828                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 829                 g_hash_table_remove(pd_opthash, "sigrok_key");
 830                 if (srd_decoder_load(pd_name) != SRD_OK) {
 831                         g_critical("Failed to load protocol decoder %s.", pd_name);
 832                         ret = 1;
 833                         goto err_out;
 834                 }
 835                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 836                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
 837                         ret = 1;
 838                         goto err_out;
 839                 }
 840
 841                 /* If no annotation list was specified, add them all in now.
 842                  * This will be pared down later to leave only the last PD
 843                  * in the stack.
 844                  */
 845                 if (!opt_pd_annotations)
 846                         g_hash_table_insert(pd_ann_visible,
 847                                             g_strdup(di->inst_id), NULL);
 848
 849                 /* Any keys left in the options hash are probes, where the key
 850                  * is the probe name as specified in the decoder class, and the
 851                  * value is the probe number i.e. the order in which the PD's
 852                  * incoming samples are arranged. */
 853                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
 854                         ret = 1;
 855                         goto err_out;
 856                 }
 857                 g_hash_table_destroy(pd_opthash);
 858                 pd_opthash = NULL;
 859         }
 860
 861 err_out:
 862         g_strfreev(pdtokens);
 863         if (pd_opthash)
 864                 g_hash_table_destroy(pd_opthash);
 865         if (pd_name)
 866                 g_free(pd_name);
 867
 868         return ret;
 869 }
 870
 871 int setup_pd_stack(void)
 872 {
 873         struct srd_decoder_inst *di_from, *di_to;
 874         int ret, i;
 875         char **pds, **ids;
 876
 877         /* Set up the protocol decoder stack. */
 878         pds = g_strsplit(opt_pds, ",", 0);
 879         if (g_strv_length(pds) > 1) {
 880                 if (opt_pd_stack) {
 881                         /* A stack setup was specified, use that. */
 882                         g_strfreev(pds);
 883                         pds = g_strsplit(opt_pd_stack, ",", 0);
 884                         if (g_strv_length(pds) < 2) {
 885                                 g_strfreev(pds);
 886                                 g_critical("Specify at least two protocol decoders to stack.");
 887                                 return 1;
 888                         }
 889                 }
 890
 891                 /* First PD goes at the bottom of the stack. */
 892                 ids = g_strsplit(pds[0], ":", 0);
 893                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
 894                         g_strfreev(ids);
 895                         g_critical("Cannot stack protocol decoder '%s': "
 896                                         "instance not found.", pds[0]);
 897                         return 1;
 898                 }
 899                 g_strfreev(ids);
 900
 901                 /* Every subsequent PD goes on top. */
 902                 for (i = 1; pds[i]; i++) {
 903                         ids = g_strsplit(pds[i], ":", 0);
 904                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
 905                                 g_strfreev(ids);
 906                                 g_critical("Cannot stack protocol decoder '%s': "
 907                                                 "instance not found.", pds[i]);
 908                                 return 1;
 909                         }
 910                         g_strfreev(ids);
 911                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
 912                                 return 1;
 913
 914                         /* Don't show annotation from this PD. Only the last PD in
 915                          * the stack will be left on the annotation list (unless
 916                          * the annotation list was specifically provided).
 917                          */
 918                         if (!opt_pd_annotations)
 919                                 g_hash_table_remove(pd_ann_visible,
 920                                                     di_from->inst_id);
 921
 922                         di_from = di_to;
 923                 }
 924         }
 925         g_strfreev(pds);
 926
 927         return 0;
 928 }
 929
 930 int setup_pd_annotations(void)
 931 {
 932         GSList *l;
 933         struct srd_decoder *dec;
 934         int ann;
 935         char **pds, **pdtok, **keyval, **ann_descr;
 936
 937         /* Set up custom list of PDs and annotations to show. */
 938         if (opt_pd_annotations) {
 939                 pds = g_strsplit(opt_pd_annotations, ",", 0);
 940                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
 941                         ann = 0;
 942                         keyval = g_strsplit(*pdtok, "=", 0);
 943                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
 944                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
 945                                 return 1;
 946                         }
 947                         if (!dec->annotations) {
 948                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
 949                                 return 1;
 950                         }
 951                         if (g_strv_length(keyval) == 2) {
 952                                 for (l = dec->annotations; l; l = l->next, ann++) {
 953                                         ann_descr = l->data;
 954                                         if (!canon_cmp(ann_descr[0], keyval[1]))
 955                                                 /* Found it. */
 956                                                 break;
 957                                 }
 958                                 if (!l) {
 959                                         g_critical("Annotation '%s' not found "
 960                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
 961                                         return 1;
 962                                 }
 963                         }
 964                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
 965                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
 966                         g_strfreev(keyval);
 967                 }
 968                 g_strfreev(pds);
 969         }
 970
 971         return 0;
 972 }
 973
 974 int setup_output_format(void)
 975 {
 976         GHashTable *fmtargs;
 977         GHashTableIter iter;
 978         gpointer key, value;
 979         struct sr_output_format **outputs;
 980         int i;
 981         char *fmtspec;
 982
 983         if (!opt_output_format) {
 984                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
 985                 /* we'll need to remember this so when saving to a file
 986                  * later, sigrok session format will be used.
 987                  */
 988                 default_output_format = TRUE;
 989         }
 990
 991         fmtargs = parse_generic_arg(opt_output_format, TRUE);
 992         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
 993         if (!fmtspec) {
 994                 g_critical("Invalid output format.");
 995                 return 1;
 996         }
 997         outputs = sr_output_list();
 998         for (i = 0; outputs[i]; i++) {
 999                 if (strcmp(outputs[i]->id, fmtspec))
1000                         continue;
1001                 g_hash_table_remove(fmtargs, "sigrok_key");
1002                 output_format = outputs[i];
1003                 g_hash_table_iter_init(&iter, fmtargs);
1004                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1005                         /* only supporting one parameter per output module
1006                          * for now, and only its value */
1007                         output_format_param = g_strdup(value);
1008                         break;
1009                 }
1010                 break;
1011         }
1012         if (!output_format) {
1013                 g_critical("Invalid output format %s.", opt_output_format);
1014                 return 1;
1015         }
1016         g_hash_table_destroy(fmtargs);
1017
1018         return 0;
1019 }
1020
1021 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
1022 {
1023         int i;
1024         char **annotations;
1025         gpointer ann_format;
1026
1027         /* 'cb_data' is not used in this specific callback. */
1028         (void)cb_data;
1029
1030         if (!pd_ann_visible)
1031                 return;
1032
1033         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
1034                         NULL, &ann_format))
1035                 /* Not in the list of PDs whose annotations we're showing. */
1036                 return;
1037
1038         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
1039                 /* We don't want this particular format from the PD. */
1040                 return;
1041
1042         annotations = pdata->data;
1043         if (opt_loglevel > SR_LOG_WARN)
1044                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1045         printf("%s: ", pdata->pdo->proto_id);
1046         for (i = 0; annotations[i]; i++)
1047                 printf("\"%s\" ", annotations[i]);
1048         printf("\n");
1049         fflush(stdout);
1050 }
1051
1052 static int select_probes(struct sr_dev_inst *sdi)
1053 {
1054         struct sr_probe *probe;
1055         GSList *selected_probes, *l;
1056
1057         if (!opt_probes)
1058                 return SR_OK;
1059
1060         if (!(selected_probes = parse_probestring(sdi, opt_probes)))
1061                 return SR_ERR;
1062
1063         for (l = sdi->probes; l; l = l->next) {
1064                 probe = l->data;
1065                 if (g_slist_find(selected_probes, probe))
1066                         probe->enabled = TRUE;
1067                 else
1068                         probe->enabled = FALSE;
1069         }
1070         g_slist_free(selected_probes);
1071
1072         return SR_OK;
1073 }
1074
1075 /**
1076  * Return the input file format which the CLI tool should use.
1077  *
1078  * If the user specified -I / --input-format, use that one. Otherwise, try to
1079  * autodetect the format as good as possible. Failing that, return NULL.
1080  *
1081  * @param filename The filename of the input file. Must not be NULL.
1082  * @param opt The -I / --input-file option the user specified (or NULL).
1083  *
1084  * @return A pointer to the 'struct sr_input_format' that should be used,
1085  *         or NULL if no input format was selected or auto-detected.
1086  */
1087 static struct sr_input_format *determine_input_file_format(
1088                         const char *filename, const char *opt)
1089 {
1090         int i;
1091         struct sr_input_format **inputs;
1092
1093         /* If there are no input formats, return NULL right away. */
1094         inputs = sr_input_list();
1095         if (!inputs) {
1096                 g_critical("No supported input formats available.");
1097                 return NULL;
1098         }
1099
1100         /* If the user specified -I / --input-format, use that one. */
1101         if (opt) {
1102                 for (i = 0; inputs[i]; i++) {
1103                         if (strcasecmp(inputs[i]->id, opt))
1104                                 continue;
1105                         g_debug("Using user-specified input file format '%s'.",
1106                                         inputs[i]->id);
1107                         return inputs[i];
1108                 }
1109
1110                 /* The user specified an unknown input format, return NULL. */
1111                 g_critical("Error: specified input file format '%s' is "
1112                         "unknown.", opt);
1113                 return NULL;
1114         }
1115
1116         /* Otherwise, try to find an input module that can handle this file. */
1117         for (i = 0; inputs[i]; i++) {
1118                 if (inputs[i]->format_match(filename))
1119                         break;
1120         }
1121
1122         /* Return NULL if no input module wanted to touch this. */
1123         if (!inputs[i]) {
1124                 g_critical("Error: no matching input module found.");
1125                 return NULL;
1126         }
1127
1128         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1129                 inputs[i]->id, filename);
1130
1131         return inputs[i];
1132 }
1133
1134 static void load_input_file_format(void)
1135 {
1136         GHashTable *fmtargs = NULL;
1137         struct stat st;
1138         struct sr_input *in;
1139         struct sr_input_format *input_format;
1140         char *fmtspec = NULL;
1141
1142         if (opt_input_format) {
1143                 fmtargs = parse_generic_arg(opt_input_format, TRUE);
1144                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1145         }
1146
1147         if (!(input_format = determine_input_file_format(opt_input_file,
1148                                                    fmtspec))) {
1149                 /* The exact cause was already logged. */
1150                 return;
1151         }
1152
1153         if (fmtargs)
1154                 g_hash_table_remove(fmtargs, "sigrok_key");
1155
1156         if (stat(opt_input_file, &st) == -1) {
1157                 g_critical("Failed to load %s: %s", opt_input_file,
1158                         strerror(errno));
1159                 exit(1);
1160         }
1161
1162         /* Initialize the input module. */
1163         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1164                 g_critical("Failed to allocate input module.");
1165                 exit(1);
1166         }
1167         in->format = input_format;
1168         in->param = fmtargs;
1169         if (in->format->init) {
1170                 if (in->format->init(in) != SR_OK) {
1171                         g_critical("Input format init failed.");
1172                         exit(1);
1173                 }
1174         }
1175
1176         if (select_probes(in->sdi) > 0)
1177             return;
1178
1179         sr_session_new();
1180         sr_session_datafeed_callback_add(datafeed_in);
1181         if (sr_session_dev_add(in->sdi) != SR_OK) {
1182                 g_critical("Failed to use device.");
1183                 sr_session_destroy();
1184                 return;
1185         }
1186
1187         input_format->loadfile(in, opt_input_file);
1188         if (opt_output_file && default_output_format) {
1189                 if (sr_session_save(opt_output_file, in->sdi, singleds) != SR_OK)
1190                         g_critical("Failed to save session.");
1191         }
1192         sr_session_destroy();
1193
1194         if (fmtargs)
1195                 g_hash_table_destroy(fmtargs);
1196 }
1197
1198 static void load_input_file(void)
1199 {
1200
1201         if (sr_session_load(opt_input_file) == SR_OK) {
1202                 /* sigrok session file */
1203                 sr_session_datafeed_callback_add(datafeed_in);
1204                 sr_session_start();
1205                 sr_session_run();
1206                 sr_session_stop();
1207         }
1208         else {
1209                 /* fall back on input modules */
1210                 load_input_file_format();
1211         }
1212 }
1213
1214 static int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
1215 {
1216         const struct sr_hwcap_option *hwo;
1217         GHashTableIter iter;
1218         gpointer key, value;
1219         int ret;
1220         float tmp_float;
1221         uint64_t tmp_u64;
1222         struct sr_rational tmp_rat;
1223         gboolean tmp_bool;
1224         void *val;
1225
1226         g_hash_table_iter_init(&iter, args);
1227         while (g_hash_table_iter_next(&iter, &key, &value)) {
1228                 if (!(hwo = sr_devopt_name_get(key))) {
1229                         g_critical("Unknown device option '%s'.", (char *) key);
1230                         return SR_ERR;
1231                 }
1232
1233                 if ((value == NULL) &&
1234                         (hwo->type != SR_T_BOOL)) {
1235                         g_critical("Option '%s' needs a value.", (char *)key);
1236                         return SR_ERR;
1237                 }
1238                 val = NULL;
1239                 switch (hwo->type) {
1240                 case SR_T_UINT64:
1241                         ret = sr_parse_sizestring(value, &tmp_u64);
1242                         if (ret != SR_OK)
1243                                 break;
1244                         val = &tmp_u64;
1245                         break;
1246                 case SR_T_CHAR:
1247                         val = value;
1248                         break;
1249                 case SR_T_BOOL:
1250                         if (!value)
1251                                 tmp_bool = TRUE;
1252                         else
1253                                 tmp_bool = sr_parse_boolstring(value);
1254                         val = &tmp_bool;
1255                         break;
1256                 case SR_T_FLOAT:
1257                         tmp_float = strtof(value, NULL);
1258                         val = &tmp_float;
1259                         break;
1260                 case SR_T_RATIONAL_PERIOD:
1261                         if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1262                                 break;
1263                         val = &tmp_rat;
1264                         break;
1265                 case SR_T_RATIONAL_VOLT:
1266                         if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1267                                 break;
1268                         val = &tmp_rat;
1269                         break;
1270                 default:
1271                         ret = SR_ERR;
1272                 }
1273                 if (val)
1274                         ret = sr_dev_config_set(sdi, hwo->hwcap, val);
1275                 if (ret != SR_OK) {
1276                         g_critical("Failed to set device option '%s'.", (char *)key);
1277                         return ret;
1278                 }
1279         }
1280
1281         return SR_OK;
1282 }
1283
1284 static int set_limit_time(const struct sr_dev_inst *sdi)
1285 {
1286         uint64_t time_msec;
1287         uint64_t *samplerate;
1288
1289         time_msec = sr_parse_timestring(opt_time);
1290         if (time_msec == 0) {
1291                 g_critical("Invalid time '%s'", opt_time);
1292                 sr_session_destroy();
1293                 return SR_ERR;
1294         }
1295
1296         if (sr_driver_hwcap_exists(sdi->driver, SR_HWCAP_LIMIT_MSEC)) {
1297                 if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1298                         g_critical("Failed to configure time limit.");
1299                         sr_session_destroy();
1300                         return SR_ERR;
1301                 }
1302         }
1303         else {
1304                 /* time limit set, but device doesn't support this...
1305                  * convert to samples based on the samplerate.
1306                  */
1307                 limit_samples = 0;
1308                 if (sr_dev_has_hwcap(sdi, SR_HWCAP_SAMPLERATE)) {
1309                         sr_info_get(sdi->driver, SR_DI_CUR_SAMPLERATE,
1310                                         (const void **)&samplerate, sdi);
1311                         limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1312                 }
1313                 if (limit_samples == 0) {
1314                         g_critical("Not enough time at this samplerate.");
1315                         sr_session_destroy();
1316                         return SR_ERR;
1317                 }
1318
1319                 if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES,
1320                                         &limit_samples) != SR_OK) {
1321                         g_critical("Failed to configure time-based sample limit.");
1322                         sr_session_destroy();
1323                         return SR_ERR;
1324                 }
1325         }
1326
1327         return SR_OK;
1328 }
1329
1330 static void run_session(void)
1331 {
1332         GSList *devices;
1333         GHashTable *devargs;
1334         struct sr_dev_inst *sdi;
1335         int max_probes, i;
1336         char **triggerlist;
1337
1338         devices = device_scan();
1339         if (!devices) {
1340                 g_critical("No devices found.");
1341                 return;
1342         }
1343         if (g_slist_length(devices) > 1) {
1344                 g_critical("sigrok-cli only supports one device for capturing.");
1345                 return;
1346         }
1347         sdi = devices->data;
1348
1349         sr_session_new();
1350         sr_session_datafeed_callback_add(datafeed_in);
1351
1352         if (sr_session_dev_add(sdi) != SR_OK) {
1353                 g_critical("Failed to use device.");
1354                 sr_session_destroy();
1355                 return;
1356         }
1357
1358         if (opt_dev) {
1359                 if ((devargs = parse_generic_arg(opt_dev, FALSE))) {
1360                         if (set_dev_options(sdi, devargs) != SR_OK)
1361                                 return;
1362                         g_hash_table_destroy(devargs);
1363                 }
1364         }
1365
1366         if (select_probes(sdi) != SR_OK) {
1367                 g_critical("Failed to set probes.");
1368                 sr_session_destroy();
1369                 return;
1370         }
1371
1372         if (opt_triggers) {
1373                 if (!(triggerlist = sr_parse_triggerstring(sdi, opt_triggers))) {
1374                         sr_session_destroy();
1375                         return;
1376                 }
1377                 max_probes = g_slist_length(sdi->probes);
1378                 for (i = 0; i < max_probes; i++) {
1379                         if (triggerlist[i]) {
1380                                 sr_dev_trigger_set(sdi, i, triggerlist[i]);
1381                                 g_free(triggerlist[i]);
1382                         }
1383                 }
1384                 g_free(triggerlist);
1385         }
1386
1387         if (opt_continuous) {
1388                 if (!sr_driver_hwcap_exists(sdi->driver, SR_HWCAP_CONTINUOUS)) {
1389                         g_critical("This device does not support continuous sampling.");
1390                         sr_session_destroy();
1391                         return;
1392                 }
1393         }
1394
1395         if (opt_time) {
1396                 if (set_limit_time(sdi) != SR_OK) {
1397                         sr_session_destroy();
1398                         return;
1399                 }
1400         }
1401
1402         if (opt_samples) {
1403                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1404                                 || (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES,
1405                                                 &limit_samples) != SR_OK)) {
1406                         g_critical("Failed to configure sample limit.");
1407                         sr_session_destroy();
1408                         return;
1409                 }
1410         }
1411
1412         if (opt_frames) {
1413                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1414                                 || (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_FRAMES,
1415                                                 &limit_frames) != SR_OK)) {
1416                         g_critical("Failed to configure frame limit.");
1417                         sr_session_destroy();
1418                         return;
1419                 }
1420         }
1421
1422         if (sr_session_start() != SR_OK) {
1423                 g_critical("Failed to start session.");
1424                 sr_session_destroy();
1425                 return;
1426         }
1427
1428         if (opt_continuous)
1429                 add_anykey();
1430
1431         sr_session_run();
1432
1433         if (opt_continuous)
1434                 clear_anykey();
1435
1436         if (opt_output_file && default_output_format) {
1437                 if (sr_session_save(opt_output_file, sdi, singleds) != SR_OK)
1438                         g_critical("Failed to save session.");
1439         }
1440         sr_session_destroy();
1441         g_slist_free(devices);
1442
1443 }
1444
1445 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1446                    const gchar *message, gpointer cb_data)
1447 {
1448         (void)log_domain;
1449         (void)cb_data;
1450
1451         /*
1452          * All messages, warnings, errors etc. go to stderr (not stdout) in
1453          * order to not mess up the CLI tool data output, e.g. VCD output.
1454          */
1455         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1456                         || opt_loglevel > SR_LOG_WARN) {
1457                 fprintf(stderr, "%s\n", message);
1458                 fflush(stderr);
1459         }
1460 }
1461
1462 int main(int argc, char **argv)
1463 {
1464         int ret = 1;
1465         GOptionContext *context;
1466         GError *error;
1467
1468         g_log_set_default_handler(logger, NULL);
1469
1470         error = NULL;
1471         context = g_option_context_new(NULL);
1472         g_option_context_add_main_entries(context, optargs, NULL);
1473
1474         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1475                 g_critical("%s", error->message);
1476                 goto done;
1477         }
1478
1479         /* Set the loglevel (amount of messages to output) for libsigrok. */
1480         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1481                 goto done;
1482
1483         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1484         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1485                 goto done;
1486
1487         if (sr_init(&sr_ctx) != SR_OK)
1488                 goto done;
1489
1490         if (opt_pds) {
1491                 if (srd_init(NULL) != SRD_OK)
1492                         goto done;
1493                 if (register_pds(NULL, opt_pds) != 0)
1494                         goto done;
1495                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1496                                 show_pd_annotations, NULL) != SRD_OK)
1497                         goto done;
1498                 if (setup_pd_stack() != 0)
1499                         goto done;
1500                 if (setup_pd_annotations() != 0)
1501                         goto done;
1502         }
1503
1504         if (setup_output_format() != 0)
1505                 goto done;
1506
1507         if (opt_version)
1508                 show_version();
1509         else if (opt_list_devs)
1510                 show_dev_list();
1511         else if (opt_pds && opt_show)
1512                 show_pd_detail();
1513         else if (opt_show)
1514                 show_dev_detail();
1515         else if (opt_input_file)
1516                 load_input_file();
1517         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1518                 run_session();
1519         else
1520                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1521
1522         if (opt_pds)
1523                 srd_exit();
1524
1525         ret = 0;
1526
1527 done:
1528         if (sr_ctx)
1529                 sr_exit(sr_ctx);
1530
1531         g_option_context_free(context);
1532
1533         return ret;
1534 }