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 uint64_t limit_samples = 0;
  40 static uint64_t limit_frames = 0;
  41 static struct sr_output_format *output_format = NULL;
  42 static int default_output_format = FALSE;
  43 static char *output_format_param = NULL;
  44 static GHashTable *pd_ann_visible = NULL;
  45 static struct sr_datastore *singleds = NULL;
  46
  47 static gboolean opt_version = FALSE;
  48 static gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */
  49 static gboolean opt_list_devs = FALSE;
  50 static gboolean opt_wait_trigger = FALSE;
  51 static gchar *opt_input_file = NULL;
  52 static gchar *opt_output_file = NULL;
  53 static gchar *opt_drv = NULL;
  54 static gchar *opt_dev = NULL;
  55 static gchar *opt_probes = NULL;
  56 static gchar *opt_triggers = NULL;
  57 static gchar *opt_pds = NULL;
  58 static gchar *opt_pd_stack = NULL;
  59 static gchar *opt_pd_annotations = NULL;
  60 static gchar *opt_input_format = NULL;
  61 static gchar *opt_output_format = NULL;
  62 static gchar *opt_show = NULL;
  63 static gchar *opt_time = NULL;
  64 static gchar *opt_samples = NULL;
  65 static gchar *opt_frames = NULL;
  66 static gchar *opt_continuous = NULL;
  67
  68 static GOptionEntry optargs[] = {
  69         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
  70                         "Show version and support list", NULL},
  71         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
  72                         "Set libsigrok/libsigrokdecode loglevel", NULL},
  73         {"list-devices", 'D', 0, G_OPTION_ARG_NONE, &opt_list_devs,
  74                         "Scan for devices", NULL},
  75         {"driver", 0, 0, G_OPTION_ARG_STRING, &opt_drv,
  76                         "Use only this driver", NULL},
  77         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev,
  78                         "Use specified device", NULL},
  79         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
  80                         "Load input from file", NULL},
  81         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
  82                         "Input format", NULL},
  83         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
  84                         "Save output to file", NULL},
  85         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
  86                         "Output format", NULL},
  87         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
  88                         "Probes to use", NULL},
  89         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
  90                         "Trigger configuration", NULL},
  91         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
  92                         "Wait for trigger", NULL},
  93         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds,
  94                         "Protocol decoders to run", NULL},
  95         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
  96                         "Protocol decoder stack", NULL},
  97         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
  98                         "Protocol decoder annotation(s) to show", NULL},
  99         {"show", 0, 0, G_OPTION_ARG_NONE, &opt_show,
 100                         "Show device detail", NULL},
 101         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
 102                         "How long to sample (ms)", NULL},
 103         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
 104                         "Number of samples to acquire", NULL},
 105         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
 106                         "Number of frames to acquire", NULL},
 107         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
 108                         "Sample continuously", NULL},
 109         {NULL, 0, 0, 0, NULL, NULL, NULL}
 110 };
 111
 112
 113 /* Convert driver options hash to GSList of struct sr_hwopt. */
 114 static GSList *hash_to_hwopt(GHashTable *hash)
 115 {
 116         const struct sr_hwcap_option *hwo;
 117         struct sr_hwopt *hwopt;
 118         GList *gl, *keys;
 119         GSList *opts;
 120         char *key, *value;
 121
 122         keys = g_hash_table_get_keys(hash);
 123         opts = NULL;
 124         for (gl = keys; gl; gl = gl->next) {
 125                 key = gl->data;
 126                 if (!(hwo = sr_drvopt_name_get(key))) {
 127                         g_critical("Unknown option %s", key);
 128                         return NULL;
 129                 }
 130                 hwopt = g_try_malloc(sizeof(struct sr_hwopt));
 131                 hwopt->hwopt = hwo->hwcap;
 132                 value = g_hash_table_lookup(hash, key);
 133                 hwopt->value = g_strdup(value);
 134                 opts = g_slist_append(opts, hwopt);
 135         }
 136         g_list_free(keys);
 137
 138         return opts;
 139 }
 140
 141 static GSList *device_scan(void)
 142 {
 143         struct sr_dev_driver **drivers, *driver;
 144         GHashTable *drvargs;
 145         GSList *drvopts, *devices, *tmpdevs, *l;
 146         int i;
 147         char *drvname;
 148
 149         if (opt_drv) {
 150                 drvargs = parse_generic_arg(opt_drv, TRUE);
 151                 drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
 152                 g_hash_table_remove(drvargs, "sigrok_key");
 153                 driver = NULL;
 154                 drivers = sr_driver_list();
 155                 for (i = 0; drivers[i]; i++) {
 156                         if (strcmp(drivers[i]->name, drvname))
 157                                 continue;
 158                         driver = drivers[i];
 159                 }
 160                 if (!driver) {
 161                         g_critical("Driver %s not found.", drvname);
 162                         return NULL;
 163                 }
 164                 g_free(drvname);
 165                 if (sr_driver_init(driver) != SR_OK) {
 166                         g_critical("Failed to initialize driver.");
 167                         return NULL;
 168                 }
 169                 drvopts = NULL;
 170                 if (g_hash_table_size(drvargs) > 0)
 171                         if (!(drvopts = hash_to_hwopt(drvargs)))
 172                                 /* Unknown options, already logged. */
 173                                 return NULL;
 174                 devices = sr_driver_scan(driver, drvopts);
 175         } else {
 176                 /* No driver specified, let them all scan on their own. */
 177                 devices = NULL;
 178                 drivers = sr_driver_list();
 179                 for (i = 0; drivers[i]; i++) {
 180                         driver = drivers[i];
 181                         if (sr_driver_init(driver) != SR_OK) {
 182                                 g_critical("Failed to initialize driver.");
 183                                 return NULL;
 184                         }
 185                         tmpdevs = sr_driver_scan(driver, NULL);
 186                         for (l = tmpdevs; l; l = l->next)
 187                                 devices = g_slist_append(devices, l->data);
 188                         g_slist_free(tmpdevs);
 189                 }
 190         }
 191
 192         return devices;
 193 }
 194
 195 static void show_version(void)
 196 {
 197         GSList *l;
 198         struct sr_dev_driver **drivers;
 199         struct sr_input_format **inputs;
 200         struct sr_output_format **outputs;
 201         struct srd_decoder *dec;
 202         int i;
 203
 204         printf("sigrok-cli %s\n\n", VERSION);
 205
 206         printf("Using libsigrok %s (lib version %s).\n",
 207                sr_package_version_string_get(), sr_lib_version_string_get());
 208         printf("Using libsigrokdecode %s (lib version %s).\n\n",
 209                srd_package_version_string_get(), srd_lib_version_string_get());
 210
 211         printf("Supported hardware drivers:\n");
 212         drivers = sr_driver_list();
 213         for (i = 0; drivers[i]; i++) {
 214                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
 215         }
 216         printf("\n");
 217
 218         printf("Supported input formats:\n");
 219         inputs = sr_input_list();
 220         for (i = 0; inputs[i]; i++)
 221                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
 222         printf("\n");
 223
 224         printf("Supported output formats:\n");
 225         outputs = sr_output_list();
 226         for (i = 0; outputs[i]; i++)
 227                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
 228         printf("\n");
 229
 230         if (srd_init(NULL) == SRD_OK) {
 231                 printf("Supported protocol decoders:\n");
 232                 srd_decoder_load_all();
 233                 for (l = srd_decoder_list(); l; l = l->next) {
 234                         dec = l->data;
 235                         printf("  %-20s %s\n", dec->id, dec->longname);
 236                         /* Print protocol description upon "-l 3" or higher. */
 237                         if (opt_loglevel >= SR_LOG_INFO)
 238                                 printf("  %-20s %s\n", "", dec->desc);
 239                 }
 240                 srd_exit();
 241         }
 242         printf("\n");
 243 }
 244
 245 static void print_dev_line(const struct sr_dev_inst *sdi)
 246 {
 247
 248         if (sdi->vendor && sdi->vendor[0])
 249                 printf("%s ", sdi->vendor);
 250         if (sdi->model && sdi->model[0])
 251                 printf("%s ", sdi->model);
 252         if (sdi->version && sdi->version[0])
 253                 printf("%s ", sdi->version);
 254         if (sdi->probes)
 255                 printf("with %d probes", g_slist_length(sdi->probes));
 256         printf("\n");
 257 }
 258
 259 static void show_dev_list(void)
 260 {
 261         struct sr_dev_inst *sdi;
 262         GSList *devices, *l;
 263
 264         if (!(devices = device_scan()))
 265                 return;
 266
 267         printf("The following devices were found:\n");
 268         for (l = devices; l; l = l->next) {
 269                 sdi = l->data;
 270                 print_dev_line(sdi);
 271         }
 272         g_slist_free(devices);
 273
 274 }
 275
 276 static void show_dev_detail(void)
 277 {
 278         struct sr_dev_inst *sdi;
 279         const struct sr_hwcap_option *hwo;
 280         const struct sr_samplerates *samplerates;
 281         struct sr_rational *rationals;
 282         GSList *devices;
 283         uint64_t *integers;
 284         const int *hwopts, *hwcaps;
 285         int cap, num_devices, n, i;
 286         char *s, *title;
 287         const char *charopts, **stropts;
 288
 289         if (!(devices = device_scan())) {
 290                 g_critical("No devices found.");
 291                 return;
 292         }
 293
 294         num_devices = g_slist_length(devices);
 295         if (num_devices > 1) {
 296                 if (!opt_dev) {
 297                         g_critical("%d devices found. Use --list-devices to show them, "
 298                                         "and --device to select one.", num_devices);
 299                         return;
 300                 }
 301                 /* opt_dev is NULL if not specified, which is fine. */
 302                 n = strtol(opt_dev, NULL, 10);
 303                 if (n >= num_devices) {
 304                         g_critical("%d devices found, numbered starting from 0.",
 305                                         num_devices);
 306                         return;
 307                 }
 308                 sdi = g_slist_nth_data(devices, n);
 309         } else
 310                 sdi = g_slist_nth_data(devices, 0);
 311
 312         print_dev_line(sdi);
 313
 314         if (sr_info_get(sdi->driver, SR_DI_TRIGGER_TYPES, (const void **)&charopts,
 315                         sdi) == SR_OK && charopts) {
 316                 printf("Supported triggers: ");
 317                 while (*charopts) {
 318                         printf("%c ", *charopts);
 319                         charopts++;
 320                 }
 321                 printf("\n");
 322         }
 323
 324         if ((sr_info_get(sdi->driver, SR_DI_HWOPTS, (const void **)&hwopts,
 325                         NULL) == SR_OK) && hwopts) {
 326                 printf("Supported driver options:\n");
 327                 for (i = 0; hwopts[i]; i++) {
 328                         if (!(hwo = sr_drvopt_get(hwopts[i])))
 329                                 continue;
 330                         printf("    %s\n", hwo->shortname);
 331                 }
 332         }
 333
 334         title = "Supported device options:\n";
 335         if ((sr_info_get(sdi->driver, SR_DI_HWCAPS, (const void **)&hwcaps,
 336                         NULL) != SR_OK) || !hwcaps)
 337                 /* Driver supports no device instance options. */
 338                 return;
 339
 340         for (cap = 0; hwcaps[cap]; cap++) {
 341                 if (!(hwo = sr_devopt_get(hwcaps[cap])))
 342                         continue;
 343
 344                 if (title) {
 345                         printf("%s", title);
 346                         title = NULL;
 347                 }
 348
 349                 if (hwo->hwcap == SR_HWCAP_PATTERN_MODE) {
 350                         /* Pattern generator modes */
 351                         printf("    %s", hwo->shortname);
 352                         if (sr_info_get(sdi->driver, SR_DI_PATTERNS,
 353                                         (const void **)&stropts, sdi) == SR_OK) {
 354                                 printf(" - supported patterns:\n");
 355                                 for (i = 0; stropts[i]; i++)
 356                                         printf("      %s\n", stropts[i]);
 357                         } else {
 358                                 printf("\n");
 359                         }
 360
 361                 } else if (hwo->hwcap == SR_HWCAP_SAMPLERATE) {
 362                         /* Supported samplerates */
 363                         printf("    %s", hwo->shortname);
 364                         if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES,
 365                                         (const void **)&samplerates, sdi) != SR_OK) {
 366                                 printf("\n");
 367                                 continue;
 368                         }
 369                         if (samplerates->step) {
 370                                 /* low */
 371                                 if (!(s = sr_samplerate_string(samplerates->low)))
 372                                         continue;
 373                                 printf(" (%s", s);
 374                                 g_free(s);
 375                                 /* high */
 376                                 if (!(s = sr_samplerate_string(samplerates->high)))
 377                                         continue;
 378                                 printf(" - %s", s);
 379                                 g_free(s);
 380                                 /* step */
 381                                 if (!(s = sr_samplerate_string(samplerates->step)))
 382                                         continue;
 383                                 printf(" in steps of %s)\n", s);
 384                                 g_free(s);
 385                         } else {
 386                                 printf(" - supported samplerates:\n");
 387                                 for (i = 0; samplerates->list[i]; i++)
 388                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
 389                         }
 390
 391                 } else if (hwo->hwcap == SR_HWCAP_BUFFERSIZE) {
 392                         /* Supported buffer sizes */
 393                         printf("    %s", hwo->shortname);
 394                         if (sr_info_get(sdi->driver, SR_DI_BUFFERSIZES,
 395                                         (const void **)&integers, sdi) != SR_OK) {
 396                                 printf("\n");
 397                                 continue;
 398                         }
 399                         printf(" - supported buffer sizes:\n");
 400                         for (i = 0; integers[i]; i++)
 401                                 printf("      %"PRIu64"\n", integers[i]);
 402
 403                 } else if (hwo->hwcap == SR_HWCAP_TIMEBASE) {
 404                         /* Supported time bases */
 405                         printf("    %s", hwo->shortname);
 406                         if (sr_info_get(sdi->driver, SR_DI_TIMEBASES,
 407                                         (const void **)&rationals, sdi) != SR_OK) {
 408                                 printf("\n");
 409                                 continue;
 410                         }
 411                         printf(" - supported time bases:\n");
 412                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 413                                 printf("      %s\n", sr_period_string(
 414                                                 rationals[i].p * rationals[i].q));
 415
 416                 } else if (hwo->hwcap == SR_HWCAP_TRIGGER_SOURCE) {
 417                         /* Supported trigger sources */
 418                         printf("    %s", hwo->shortname);
 419                         if (sr_info_get(sdi->driver, SR_DI_TRIGGER_SOURCES,
 420                                         (const void **)&stropts, sdi) != SR_OK) {
 421                                 printf("\n");
 422                                 continue;
 423                         }
 424                         printf(" - supported trigger sources:\n");
 425                         for (i = 0; stropts[i]; i++)
 426                                 printf("      %s\n", stropts[i]);
 427
 428                 } else if (hwo->hwcap == SR_HWCAP_FILTER) {
 429                         /* Supported trigger sources */
 430                         printf("    %s", hwo->shortname);
 431                         if (sr_info_get(sdi->driver, SR_DI_FILTERS,
 432                                         (const void **)&stropts, sdi) != SR_OK) {
 433                                 printf("\n");
 434                                 continue;
 435                         }
 436                         printf(" - supported filter targets:\n");
 437                         for (i = 0; stropts[i]; i++)
 438                                 printf("      %s\n", stropts[i]);
 439
 440                 } else if (hwo->hwcap == SR_HWCAP_VDIV) {
 441                         /* Supported volts/div values */
 442                         printf("    %s", hwo->shortname);
 443                         if (sr_info_get(sdi->driver, SR_DI_VDIVS,
 444                                         (const void **)&rationals, sdi) != SR_OK) {
 445                                 printf("\n");
 446                                 continue;
 447                         }
 448                         printf(" - supported volts/div:\n");
 449                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 450                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
 451
 452                 } else if (hwo->hwcap == SR_HWCAP_COUPLING) {
 453                         /* Supported coupling settings */
 454                         printf("    %s", hwo->shortname);
 455                         if (sr_info_get(sdi->driver, SR_DI_COUPLING,
 456                                         (const void **)&stropts, sdi) != SR_OK) {
 457                                 printf("\n");
 458                                 continue;
 459                         }
 460                         printf(" - supported coupling options:\n");
 461                         for (i = 0; stropts[i]; i++)
 462                                 printf("      %s\n", stropts[i]);
 463
 464                 } else {
 465                         /* Everything else */
 466                         printf("    %s\n", hwo->shortname);
 467                 }
 468         }
 469
 470 }
 471
 472 static void show_pd_detail(void)
 473 {
 474         GSList *l;
 475         struct srd_decoder *dec;
 476         char **pdtokens, **pdtok, **ann, *doc;
 477         struct srd_probe *p;
 478
 479         pdtokens = g_strsplit(opt_pds, ",", -1);
 480         for (pdtok = pdtokens; *pdtok; pdtok++) {
 481                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 482                         g_critical("Protocol decoder %s not found.", *pdtok);
 483                         return;
 484                 }
 485                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 486                                 dec->id, dec->name, dec->longname, dec->desc);
 487                 printf("License: %s\n", dec->license);
 488                 printf("Annotations:\n");
 489                 if (dec->annotations) {
 490                         for (l = dec->annotations; l; l = l->next) {
 491                                 ann = l->data;
 492                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 493                         }
 494                 } else {
 495                         printf("None.\n");
 496                 }
 497                 /* TODO: Print supported decoder options. */
 498                 printf("Required probes:\n");
 499                 if (dec->probes) {
 500                         for (l = dec->probes; l; l = l->next) {
 501                                 p = l->data;
 502                                 printf("- %s (%s): %s\n",
 503                                        p->name, p->id, p->desc);
 504                         }
 505                 } else {
 506                         printf("None.\n");
 507                 }
 508                 printf("Optional probes:\n");
 509                 if (dec->opt_probes) {
 510                         for (l = dec->opt_probes; l; l = l->next) {
 511                                 p = l->data;
 512                                 printf("- %s (%s): %s\n",
 513                                        p->name, p->id, p->desc);
 514                         }
 515                 } else {
 516                         printf("None.\n");
 517                 }
 518                 if ((doc = srd_decoder_doc_get(dec))) {
 519                         printf("Documentation:\n%s\n",
 520                                doc[0] == '\n' ? doc + 1 : doc);
 521                         g_free(doc);
 522                 }
 523         }
 524
 525         g_strfreev(pdtokens);
 526 }
 527
 528 static void datafeed_in(const struct sr_dev_inst *sdi,
 529                 struct sr_datafeed_packet *packet)
 530 {
 531         static struct sr_output *o = NULL;
 532         static int logic_probelist[SR_MAX_NUM_PROBES] = { -1 };
 533         static struct sr_probe *analog_probelist[SR_MAX_NUM_PROBES];
 534         static uint64_t received_samples = 0;
 535         static int unitsize = 0;
 536         static int triggered = 0;
 537         static FILE *outfile = NULL;
 538         static int num_analog_probes = 0;
 539         struct sr_probe *probe;
 540         struct sr_datafeed_logic *logic;
 541         struct sr_datafeed_meta_logic *meta_logic;
 542         struct sr_datafeed_analog *analog;
 543         struct sr_datafeed_meta_analog *meta_analog;
 544         static int num_enabled_analog_probes = 0;
 545         int num_enabled_probes, sample_size, ret, i;
 546         uint64_t output_len, filter_out_len;
 547         uint8_t *output_buf, *filter_out;
 548
 549         /* If the first packet to come in isn't a header, don't even try. */
 550         if (packet->type != SR_DF_HEADER && o == NULL)
 551                 return;
 552
 553         sample_size = -1;
 554         switch (packet->type) {
 555         case SR_DF_HEADER:
 556                 g_debug("cli: Received SR_DF_HEADER");
 557                 /* Initialize the output module. */
 558                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 559                         g_critical("Output module malloc failed.");
 560                         exit(1);
 561                 }
 562                 o->format = output_format;
 563                 o->sdi = (struct sr_dev_inst *)sdi;
 564                 o->param = output_format_param;
 565                 if (o->format->init) {
 566                         if (o->format->init(o) != SR_OK) {
 567                                 g_critical("Output format initialization failed.");
 568                                 exit(1);
 569                         }
 570                 }
 571                 break;
 572
 573         case SR_DF_END:
 574                 g_debug("cli: Received SR_DF_END");
 575                 if (!o) {
 576                         g_debug("cli: double end!");
 577                         break;
 578                 }
 579                 if (o->format->event) {
 580                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 581                         if (output_buf) {
 582                                 if (outfile)
 583                                         fwrite(output_buf, 1, output_len, outfile);
 584                                 g_free(output_buf);
 585                                 output_len = 0;
 586                         }
 587                 }
 588                 if (limit_samples && received_samples < limit_samples)
 589                         g_warning("Device only sent %" PRIu64 " samples.",
 590                                received_samples);
 591                 if (opt_continuous)
 592                         g_warning("Device stopped after %" PRIu64 " samples.",
 593                                received_samples);
 594                 if (outfile && outfile != stdout)
 595                         fclose(outfile);
 596                 g_free(o);
 597                 o = NULL;
 598                 break;
 599
 600         case SR_DF_TRIGGER:
 601                 g_debug("cli: received SR_DF_TRIGGER");
 602                 if (o->format->event)
 603                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 604                                          &output_len);
 605                 triggered = 1;
 606                 break;
 607
 608         case SR_DF_META_LOGIC:
 609                 g_message("cli: Received SR_DF_META_LOGIC");
 610                 meta_logic = packet->payload;
 611                 num_enabled_probes = 0;
 612                 for (i = 0; i < meta_logic->num_probes; i++) {
 613                         probe = g_slist_nth_data(sdi->probes, i);
 614                         if (probe->enabled)
 615                                 logic_probelist[num_enabled_probes++] = probe->index;
 616                 }
 617                 logic_probelist[num_enabled_probes] = -1;
 618                 /* How many bytes we need to store num_enabled_probes bits */
 619                 unitsize = (num_enabled_probes + 7) / 8;
 620
 621                 outfile = stdout;
 622                 if (opt_output_file) {
 623                         if (default_output_format) {
 624                                 /* output file is in session format, which means we'll
 625                                  * dump everything in the datastore as it comes in,
 626                                  * and save from there after the session. */
 627                                 outfile = NULL;
 628                                 ret = sr_datastore_new(unitsize, &singleds);
 629                                 if (ret != SR_OK) {
 630                                         g_critical("Failed to create datastore.");
 631                                         exit(1);
 632                                 }
 633                         } else {
 634                                 /* saving to a file in whatever format was set
 635                                  * with --format, so all we need is a filehandle */
 636                                 outfile = g_fopen(opt_output_file, "wb");
 637                         }
 638                 }
 639                 if (opt_pds)
 640                         srd_session_start(num_enabled_probes, unitsize,
 641                                         meta_logic->samplerate);
 642                 break;
 643
 644         case SR_DF_LOGIC:
 645                 logic = packet->payload;
 646                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 647                 sample_size = logic->unitsize;
 648                 if (logic->length == 0)
 649                         break;
 650
 651                 /* Don't store any samples until triggered. */
 652                 if (opt_wait_trigger && !triggered)
 653                         break;
 654
 655                 if (limit_samples && received_samples >= limit_samples)
 656                         break;
 657
 658                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 659                                 logic->data, logic->length,
 660                                 &filter_out, &filter_out_len);
 661                 if (ret != SR_OK)
 662                         break;
 663
 664                 /* what comes out of the filter is guaranteed to be packed into the
 665                  * minimum size needed to support the number of samples at this sample
 666                  * size. however, the driver may have submitted too much -- cut off
 667                  * the buffer of the last packet according to the sample limit.
 668                  */
 669                 if (limit_samples && (received_samples + logic->length / sample_size >
 670                                 limit_samples * sample_size))
 671                         filter_out_len = limit_samples * sample_size - received_samples;
 672
 673                 if (singleds)
 674                         sr_datastore_put(singleds, filter_out,
 675                                         filter_out_len, sample_size, logic_probelist);
 676
 677                 if (opt_output_file && default_output_format)
 678                         /* saving to a session file, don't need to do anything else
 679                          * to this data for now. */
 680                         goto cleanup;
 681
 682                 if (opt_pds) {
 683                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
 684                                         filter_out_len) != SRD_OK)
 685                                 sr_session_stop();
 686                 } else {
 687                         output_len = 0;
 688                         if (o->format->data && packet->type == o->format->df_type)
 689                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 690                         if (output_buf) {
 691                                 fwrite(output_buf, 1, output_len, outfile);
 692                                 fflush(outfile);
 693                                 g_free(output_buf);
 694                         }
 695                 }
 696
 697                 cleanup:
 698                 g_free(filter_out);
 699                 received_samples += logic->length / sample_size;
 700                 break;
 701
 702         case SR_DF_META_ANALOG:
 703                 g_message("cli: Received SR_DF_META_ANALOG");
 704                 meta_analog = packet->payload;
 705                 num_analog_probes = meta_analog->num_probes;
 706                 num_enabled_analog_probes = 0;
 707                 for (i = 0; i < num_analog_probes; i++) {
 708                         probe = g_slist_nth_data(sdi->probes, i);
 709                         if (probe->enabled)
 710                                 analog_probelist[num_enabled_analog_probes++] = probe;
 711                 }
 712
 713                 outfile = stdout;
 714                 if (opt_output_file) {
 715                         if (default_output_format) {
 716                                 /* output file is in session format, which means we'll
 717                                  * dump everything in the datastore as it comes in,
 718                                  * and save from there after the session. */
 719                                 outfile = NULL;
 720                                 ret = sr_datastore_new(unitsize, &singleds);
 721                                 if (ret != SR_OK) {
 722                                         g_critical("Failed to create datastore.");
 723                                         exit(1);
 724                                 }
 725                         } else {
 726                                 /* saving to a file in whatever format was set
 727                                  * with --format, so all we need is a filehandle */
 728                                 outfile = g_fopen(opt_output_file, "wb");
 729                         }
 730                 }
 731                 break;
 732
 733         case SR_DF_ANALOG:
 734                 analog = packet->payload;
 735                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 736                 if (analog->num_samples == 0)
 737                         break;
 738
 739                 if (limit_samples && received_samples >= limit_samples)
 740                         break;
 741
 742                 if (o->format->data && packet->type == o->format->df_type) {
 743                         o->format->data(o, (const uint8_t *)analog->data,
 744                                         analog->num_samples * sizeof(float),
 745                                         &output_buf, &output_len);
 746                         if (output_buf) {
 747                                 fwrite(output_buf, 1, output_len, outfile);
 748                                 fflush(outfile);
 749                                 g_free(output_buf);
 750                         }
 751                 }
 752
 753                 received_samples += analog->num_samples;
 754                 break;
 755
 756         case SR_DF_FRAME_BEGIN:
 757                 g_debug("cli: received SR_DF_FRAME_BEGIN");
 758                 if (o->format->event) {
 759                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
 760                                          &output_len);
 761                         if (output_buf) {
 762                                 fwrite(output_buf, 1, output_len, outfile);
 763                                 fflush(outfile);
 764                                 g_free(output_buf);
 765                         }
 766                 }
 767                 break;
 768
 769         case SR_DF_FRAME_END:
 770                 g_debug("cli: received SR_DF_FRAME_END");
 771                 if (o->format->event) {
 772                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
 773                                          &output_len);
 774                         if (output_buf) {
 775                                 fwrite(output_buf, 1, output_len, outfile);
 776                                 fflush(outfile);
 777                                 g_free(output_buf);
 778                         }
 779                 }
 780                 break;
 781
 782         default:
 783                 g_message("received unknown packet type %d", packet->type);
 784         }
 785
 786 }
 787
 788 /* Register the given PDs for this session.
 789  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 790  * That will instantiate two SPI decoders on the clock but different data
 791  * lines.
 792  */
 793 static int register_pds(struct sr_dev *dev, const char *pdstring)
 794 {
 795         GHashTable *pd_opthash;
 796         struct srd_decoder_inst *di;
 797         int ret;
 798         char **pdtokens, **pdtok, *pd_name;
 799
 800         /* Avoid compiler warnings. */
 801         (void)dev;
 802
 803         ret = 0;
 804         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
 805                         g_free, NULL);
 806         pd_name = NULL;
 807         pd_opthash = NULL;
 808         pdtokens = g_strsplit(pdstring, ",", 0);
 809         for (pdtok = pdtokens; *pdtok; pdtok++) {
 810                 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
 811                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
 812                         goto err_out;
 813                 }
 814
 815                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 816                 g_hash_table_remove(pd_opthash, "sigrok_key");
 817                 if (srd_decoder_load(pd_name) != SRD_OK) {
 818                         g_critical("Failed to load protocol decoder %s.", pd_name);
 819                         ret = 1;
 820                         goto err_out;
 821                 }
 822                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 823                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
 824                         ret = 1;
 825                         goto err_out;
 826                 }
 827
 828                 /* If no annotation list was specified, add them all in now.
 829                  * This will be pared down later to leave only the last PD
 830                  * in the stack.
 831                  */
 832                 if (!opt_pd_annotations)
 833                         g_hash_table_insert(pd_ann_visible,
 834                                             g_strdup(di->inst_id), NULL);
 835
 836                 /* Any keys left in the options hash are probes, where the key
 837                  * is the probe name as specified in the decoder class, and the
 838                  * value is the probe number i.e. the order in which the PD's
 839                  * incoming samples are arranged. */
 840                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
 841                         ret = 1;
 842                         goto err_out;
 843                 }
 844                 g_hash_table_destroy(pd_opthash);
 845                 pd_opthash = NULL;
 846         }
 847
 848 err_out:
 849         g_strfreev(pdtokens);
 850         if (pd_opthash)
 851                 g_hash_table_destroy(pd_opthash);
 852         if (pd_name)
 853                 g_free(pd_name);
 854
 855         return ret;
 856 }
 857
 858 int setup_pd_stack(void)
 859 {
 860         struct srd_decoder_inst *di_from, *di_to;
 861         int ret, i;
 862         char **pds, **ids;
 863
 864         /* Set up the protocol decoder stack. */
 865         pds = g_strsplit(opt_pds, ",", 0);
 866         if (g_strv_length(pds) > 1) {
 867                 if (opt_pd_stack) {
 868                         /* A stack setup was specified, use that. */
 869                         g_strfreev(pds);
 870                         pds = g_strsplit(opt_pd_stack, ",", 0);
 871                         if (g_strv_length(pds) < 2) {
 872                                 g_strfreev(pds);
 873                                 g_critical("Specify at least two protocol decoders to stack.");
 874                                 return 1;
 875                         }
 876                 }
 877
 878                 /* First PD goes at the bottom of the stack. */
 879                 ids = g_strsplit(pds[0], ":", 0);
 880                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
 881                         g_strfreev(ids);
 882                         g_critical("Cannot stack protocol decoder '%s': "
 883                                         "instance not found.", pds[0]);
 884                         return 1;
 885                 }
 886                 g_strfreev(ids);
 887
 888                 /* Every subsequent PD goes on top. */
 889                 for (i = 1; pds[i]; i++) {
 890                         ids = g_strsplit(pds[i], ":", 0);
 891                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
 892                                 g_strfreev(ids);
 893                                 g_critical("Cannot stack protocol decoder '%s': "
 894                                                 "instance not found.", pds[i]);
 895                                 return 1;
 896                         }
 897                         g_strfreev(ids);
 898                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
 899                                 return 1;
 900
 901                         /* Don't show annotation from this PD. Only the last PD in
 902                          * the stack will be left on the annotation list (unless
 903                          * the annotation list was specifically provided).
 904                          */
 905                         if (!opt_pd_annotations)
 906                                 g_hash_table_remove(pd_ann_visible,
 907                                                     di_from->inst_id);
 908
 909                         di_from = di_to;
 910                 }
 911         }
 912         g_strfreev(pds);
 913
 914         return 0;
 915 }
 916
 917 int setup_pd_annotations(void)
 918 {
 919         GSList *l;
 920         struct srd_decoder *dec;
 921         int ann;
 922         char **pds, **pdtok, **keyval, **ann_descr;
 923
 924         /* Set up custom list of PDs and annotations to show. */
 925         if (opt_pd_annotations) {
 926                 pds = g_strsplit(opt_pd_annotations, ",", 0);
 927                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
 928                         ann = 0;
 929                         keyval = g_strsplit(*pdtok, "=", 0);
 930                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
 931                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
 932                                 return 1;
 933                         }
 934                         if (!dec->annotations) {
 935                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
 936                                 return 1;
 937                         }
 938                         if (g_strv_length(keyval) == 2) {
 939                                 for (l = dec->annotations; l; l = l->next, ann++) {
 940                                         ann_descr = l->data;
 941                                         if (!canon_cmp(ann_descr[0], keyval[1]))
 942                                                 /* Found it. */
 943                                                 break;
 944                                 }
 945                                 if (!l) {
 946                                         g_critical("Annotation '%s' not found "
 947                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
 948                                         return 1;
 949                                 }
 950                         }
 951                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
 952                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
 953                         g_strfreev(keyval);
 954                 }
 955                 g_strfreev(pds);
 956         }
 957
 958         return 0;
 959 }
 960
 961 int setup_output_format(void)
 962 {
 963         GHashTable *fmtargs;
 964         GHashTableIter iter;
 965         gpointer key, value;
 966         struct sr_output_format **outputs;
 967         int i;
 968         char *fmtspec;
 969
 970         if (!opt_output_format) {
 971                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
 972                 /* we'll need to remember this so when saving to a file
 973                  * later, sigrok session format will be used.
 974                  */
 975                 default_output_format = TRUE;
 976         }
 977
 978         fmtargs = parse_generic_arg(opt_output_format, TRUE);
 979         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
 980         if (!fmtspec) {
 981                 g_critical("Invalid output format.");
 982                 return 1;
 983         }
 984         outputs = sr_output_list();
 985         for (i = 0; outputs[i]; i++) {
 986                 if (strcmp(outputs[i]->id, fmtspec))
 987                         continue;
 988                 g_hash_table_remove(fmtargs, "sigrok_key");
 989                 output_format = outputs[i];
 990                 g_hash_table_iter_init(&iter, fmtargs);
 991                 while (g_hash_table_iter_next(&iter, &key, &value)) {
 992                         /* only supporting one parameter per output module
 993                          * for now, and only its value */
 994                         output_format_param = g_strdup(value);
 995                         break;
 996                 }
 997                 break;
 998         }
 999         if (!output_format) {
1000                 g_critical("Invalid output format %s.", opt_output_format);
1001                 return 1;
1002         }
1003         g_hash_table_destroy(fmtargs);
1004
1005         return 0;
1006 }
1007
1008 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
1009 {
1010         int i;
1011         char **annotations;
1012         gpointer ann_format;
1013
1014         /* 'cb_data' is not used in this specific callback. */
1015         (void)cb_data;
1016
1017         if (!pd_ann_visible)
1018                 return;
1019
1020         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
1021                         NULL, &ann_format))
1022                 /* Not in the list of PDs whose annotations we're showing. */
1023                 return;
1024
1025         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
1026                 /* We don't want this particular format from the PD. */
1027                 return;
1028
1029         annotations = pdata->data;
1030         if (opt_loglevel > SR_LOG_WARN)
1031                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1032         printf("%s: ", pdata->pdo->proto_id);
1033         for (i = 0; annotations[i]; i++)
1034                 printf("\"%s\" ", annotations[i]);
1035         printf("\n");
1036         fflush(stdout);
1037 }
1038
1039 static int select_probes(struct sr_dev_inst *sdi)
1040 {
1041         char **probelist;
1042         int max_probes, i;
1043
1044         if (!opt_probes)
1045                 return SR_OK;
1046
1047         /*
1048          * This only works because a device by default initializes
1049          * and enables all its probes.
1050          */
1051         max_probes = g_slist_length(sdi->probes);
1052         probelist = parse_probestring(max_probes, opt_probes);
1053         if (!probelist) {
1054                 return SR_ERR;
1055         }
1056
1057         for (i = 0; i < max_probes; i++) {
1058                 if (probelist[i]) {
1059                         sr_dev_probe_name_set(sdi, i, probelist[i]);
1060                         g_free(probelist[i]);
1061                 } else {
1062                         sr_dev_probe_enable(sdi, i, FALSE);
1063                 }
1064         }
1065         g_free(probelist);
1066
1067         return SR_OK;
1068 }
1069
1070 /**
1071  * Return the input file format which the CLI tool should use.
1072  *
1073  * If the user specified -I / --input-format, use that one. Otherwise, try to
1074  * autodetect the format as good as possible. Failing that, return NULL.
1075  *
1076  * @param filename The filename of the input file. Must not be NULL.
1077  * @param opt The -I / --input-file option the user specified (or NULL).
1078  *
1079  * @return A pointer to the 'struct sr_input_format' that should be used,
1080  *         or NULL if no input format was selected or auto-detected.
1081  */
1082 static struct sr_input_format *determine_input_file_format(
1083                         const char *filename, const char *opt)
1084 {
1085         int i;
1086         struct sr_input_format **inputs;
1087
1088         /* If there are no input formats, return NULL right away. */
1089         inputs = sr_input_list();
1090         if (!inputs) {
1091                 g_critical("No supported input formats available.");
1092                 return NULL;
1093         }
1094
1095         /* If the user specified -I / --input-format, use that one. */
1096         if (opt) {
1097                 for (i = 0; inputs[i]; i++) {
1098                         if (strcasecmp(inputs[i]->id, opt))
1099                                 continue;
1100                         g_debug("Using user-specified input file format '%s'.",
1101                                         inputs[i]->id);
1102                         return inputs[i];
1103                 }
1104
1105                 /* The user specified an unknown input format, return NULL. */
1106                 g_critical("Error: specified input file format '%s' is "
1107                         "unknown.", opt);
1108                 return NULL;
1109         }
1110
1111         /* Otherwise, try to find an input module that can handle this file. */
1112         for (i = 0; inputs[i]; i++) {
1113                 if (inputs[i]->format_match(filename))
1114                         break;
1115         }
1116
1117         /* Return NULL if no input module wanted to touch this. */
1118         if (!inputs[i]) {
1119                 g_critical("Error: no matching input module found.");
1120                 return NULL;
1121         }
1122
1123         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1124                 inputs[i]->id, filename);
1125
1126         return inputs[i];
1127 }
1128
1129 static void load_input_file_format(void)
1130 {
1131         GHashTable *fmtargs = NULL;
1132         struct stat st;
1133         struct sr_input *in;
1134         struct sr_input_format *input_format;
1135         char *fmtspec = NULL;
1136
1137         if (opt_input_format) {
1138                 fmtargs = parse_generic_arg(opt_input_format, TRUE);
1139                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1140         }
1141
1142         if (!(input_format = determine_input_file_format(opt_input_file,
1143                                                    fmtspec))) {
1144                 /* The exact cause was already logged. */
1145                 return;
1146         }
1147
1148         if (fmtargs)
1149                 g_hash_table_remove(fmtargs, "sigrok_key");
1150
1151         if (stat(opt_input_file, &st) == -1) {
1152                 g_critical("Failed to load %s: %s", opt_input_file,
1153                         strerror(errno));
1154                 exit(1);
1155         }
1156
1157         /* Initialize the input module. */
1158         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1159                 g_critical("Failed to allocate input module.");
1160                 exit(1);
1161         }
1162         in->format = input_format;
1163         in->param = fmtargs;
1164         if (in->format->init) {
1165                 if (in->format->init(in) != SR_OK) {
1166                         g_critical("Input format init failed.");
1167                         exit(1);
1168                 }
1169         }
1170
1171         if (select_probes(in->sdi) > 0)
1172             return;
1173
1174         sr_session_new();
1175         sr_session_datafeed_callback_add(datafeed_in);
1176         if (sr_session_dev_add(in->sdi) != SR_OK) {
1177                 g_critical("Failed to use device.");
1178                 sr_session_destroy();
1179                 return;
1180         }
1181
1182         input_format->loadfile(in, opt_input_file);
1183         if (opt_output_file && default_output_format) {
1184                 if (sr_session_save(opt_output_file, in->sdi, singleds) != SR_OK)
1185                         g_critical("Failed to save session.");
1186         }
1187         sr_session_destroy();
1188
1189         if (fmtargs)
1190                 g_hash_table_destroy(fmtargs);
1191 }
1192
1193 static void load_input_file(void)
1194 {
1195
1196         if (sr_session_load(opt_input_file) == SR_OK) {
1197                 /* sigrok session file */
1198                 sr_session_datafeed_callback_add(datafeed_in);
1199                 sr_session_start();
1200                 sr_session_run();
1201                 sr_session_stop();
1202         }
1203         else {
1204                 /* fall back on input modules */
1205                 load_input_file_format();
1206         }
1207 }
1208
1209 static int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
1210 {
1211         const struct sr_hwcap_option *hwo;
1212         GHashTableIter iter;
1213         gpointer key, value;
1214         int ret;
1215         float tmp_float;
1216         uint64_t tmp_u64;
1217         struct sr_rational tmp_rat;
1218         gboolean tmp_bool;
1219         void *val;
1220
1221         g_hash_table_iter_init(&iter, args);
1222         while (g_hash_table_iter_next(&iter, &key, &value)) {
1223                 if (!(hwo = sr_devopt_name_get(key))) {
1224                         g_critical("Unknown device option '%s'.", (char *) key);
1225                         return SR_ERR;
1226                 }
1227
1228                 if ((value == NULL) &&
1229                         (hwo->type != SR_T_BOOL)) {
1230                         g_critical("Option '%s' needs a value.", (char *)key);
1231                         return SR_ERR;
1232                 }
1233                 val = NULL;
1234                 switch (hwo->type) {
1235                 case SR_T_UINT64:
1236                         ret = sr_parse_sizestring(value, &tmp_u64);
1237                         if (ret != SR_OK)
1238                                 break;
1239                         val = &tmp_u64;
1240                         break;
1241                 case SR_T_CHAR:
1242                         val = value;
1243                         break;
1244                 case SR_T_BOOL:
1245                         if (!value)
1246                                 tmp_bool = TRUE;
1247                         else
1248                                 tmp_bool = sr_parse_boolstring(value);
1249                         val = &tmp_bool;
1250                         break;
1251                 case SR_T_FLOAT:
1252                         tmp_float = strtof(value, NULL);
1253                         val = &tmp_float;
1254                         break;
1255                 case SR_T_RATIONAL_PERIOD:
1256                         if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1257                                 break;
1258                         val = &tmp_rat;
1259                         break;
1260                 case SR_T_RATIONAL_VOLT:
1261                         if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1262                                 break;
1263                         val = &tmp_rat;
1264                         break;
1265                 default:
1266                         ret = SR_ERR;
1267                 }
1268                 if (val)
1269                         ret = sr_dev_config_set(sdi, hwo->hwcap, val);
1270                 if (ret != SR_OK) {
1271                         g_critical("Failed to set device option '%s'.", (char *)key);
1272                         return ret;
1273                 }
1274                 else
1275                         break;
1276         }
1277
1278         return SR_OK;
1279 }
1280
1281 static int set_limit_time(const struct sr_dev_inst *sdi)
1282 {
1283         uint64_t time_msec;
1284         uint64_t *samplerate;
1285
1286         time_msec = sr_parse_timestring(opt_time);
1287         if (time_msec == 0) {
1288                 g_critical("Invalid time '%s'", opt_time);
1289                 sr_session_destroy();
1290                 return SR_ERR;
1291         }
1292
1293         if (sr_driver_hwcap_exists(sdi->driver, SR_HWCAP_LIMIT_MSEC)) {
1294                 if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1295                         g_critical("Failed to configure time limit.");
1296                         sr_session_destroy();
1297                         return SR_ERR;
1298                 }
1299         }
1300         else {
1301                 /* time limit set, but device doesn't support this...
1302                  * convert to samples based on the samplerate.
1303                  */
1304                 limit_samples = 0;
1305                 if (sr_dev_has_hwcap(sdi, SR_HWCAP_SAMPLERATE)) {
1306                         sr_info_get(sdi->driver, SR_DI_CUR_SAMPLERATE,
1307                                         (const void **)&samplerate, sdi);
1308                         limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1309                 }
1310                 if (limit_samples == 0) {
1311                         g_critical("Not enough time at this samplerate.");
1312                         sr_session_destroy();
1313                         return SR_ERR;
1314                 }
1315
1316                 if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES,
1317                                         &limit_samples) != SR_OK) {
1318                         g_critical("Failed to configure time-based sample limit.");
1319                         sr_session_destroy();
1320                         return SR_ERR;
1321                 }
1322         }
1323
1324         return SR_OK;
1325 }
1326
1327 static void run_session(void)
1328 {
1329         GSList *devices;
1330         GHashTable *devargs;
1331         struct sr_dev_inst *sdi;
1332         int max_probes, i;
1333         char **triggerlist;
1334
1335         devices = device_scan();
1336         if (!devices) {
1337                 g_critical("No devices found.");
1338                 return;
1339         }
1340         if (g_slist_length(devices) > 1) {
1341                 g_critical("sigrok-cli only supports one device for capturing.");
1342                 return;
1343         }
1344         sdi = devices->data;
1345
1346         sr_session_new();
1347         sr_session_datafeed_callback_add(datafeed_in);
1348
1349         if (sr_session_dev_add(sdi) != SR_OK) {
1350                 g_critical("Failed to use device.");
1351                 sr_session_destroy();
1352                 return;
1353         }
1354
1355         if (opt_dev) {
1356                 if ((devargs = parse_generic_arg(opt_dev, FALSE))) {
1357                         if (set_dev_options(sdi, devargs) != SR_OK)
1358                                 return;
1359                         g_hash_table_destroy(devargs);
1360                 }
1361         }
1362
1363         if (select_probes(sdi) != SR_OK) {
1364                 g_critical("Failed to set probes.");
1365                 sr_session_destroy();
1366                 return;
1367         }
1368
1369         if (opt_triggers) {
1370                 if (!(triggerlist = sr_parse_triggerstring(sdi, opt_triggers))) {
1371                         sr_session_destroy();
1372                         return;
1373                 }
1374                 max_probes = g_slist_length(sdi->probes);
1375                 for (i = 0; i < max_probes; i++) {
1376                         if (triggerlist[i]) {
1377                                 sr_dev_trigger_set(sdi, i, triggerlist[i]);
1378                                 g_free(triggerlist[i]);
1379                         }
1380                 }
1381                 g_free(triggerlist);
1382         }
1383
1384         if (opt_continuous) {
1385                 if (!sr_driver_hwcap_exists(sdi->driver, SR_HWCAP_CONTINUOUS)) {
1386                         g_critical("This device does not support continuous sampling.");
1387                         sr_session_destroy();
1388                         return;
1389                 }
1390         }
1391
1392         if (opt_time) {
1393                 if (set_limit_time(sdi) != SR_OK) {
1394                         sr_session_destroy();
1395                         return;
1396                 }
1397         }
1398
1399         if (opt_samples) {
1400                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1401                                 || (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES,
1402                                                 &limit_samples) != SR_OK)) {
1403                         g_critical("Failed to configure sample limit.");
1404                         sr_session_destroy();
1405                         return;
1406                 }
1407         }
1408
1409         if (opt_frames) {
1410                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1411                                 || (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_FRAMES,
1412                                                 &limit_frames) != SR_OK)) {
1413                         g_critical("Failed to configure frame limit.");
1414                         sr_session_destroy();
1415                         return;
1416                 }
1417         }
1418
1419         if (sr_session_start() != SR_OK) {
1420                 g_critical("Failed to start session.");
1421                 sr_session_destroy();
1422                 return;
1423         }
1424
1425         if (opt_continuous)
1426                 add_anykey();
1427
1428         sr_session_run();
1429
1430         if (opt_continuous)
1431                 clear_anykey();
1432
1433         if (opt_output_file && default_output_format) {
1434                 if (sr_session_save(opt_output_file, sdi, singleds) != SR_OK)
1435                         g_critical("Failed to save session.");
1436         }
1437         sr_session_destroy();
1438         g_slist_free(devices);
1439
1440 }
1441
1442 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1443                    const gchar *message, gpointer cb_data)
1444 {
1445         /* Avoid compiler warnings. */
1446         (void)log_domain;
1447         (void)cb_data;
1448
1449         /*
1450          * All messages, warnings, errors etc. go to stderr (not stdout) in
1451          * order to not mess up the CLI tool data output, e.g. VCD output.
1452          */
1453         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1454                         || opt_loglevel > SR_LOG_WARN) {
1455                 fprintf(stderr, "%s\n", message);
1456                 fflush(stderr);
1457         }
1458 }
1459
1460 int main(int argc, char **argv)
1461 {
1462         GOptionContext *context;
1463         GError *error;
1464
1465         g_log_set_default_handler(logger, NULL);
1466
1467         error = NULL;
1468         context = g_option_context_new(NULL);
1469         g_option_context_add_main_entries(context, optargs, NULL);
1470
1471         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1472                 g_critical("%s", error->message);
1473                 return 1;
1474         }
1475
1476         /* Set the loglevel (amount of messages to output) for libsigrok. */
1477         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1478                 return 1;
1479
1480         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1481         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1482                 return 1;
1483
1484         if (sr_init() != SR_OK)
1485                 return 1;
1486
1487         if (opt_pds) {
1488                 if (srd_init(NULL) != SRD_OK)
1489                         return 1;
1490                 if (register_pds(NULL, opt_pds) != 0)
1491                         return 1;
1492                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1493                                 show_pd_annotations, NULL) != SRD_OK)
1494                         return 1;
1495                 if (setup_pd_stack() != 0)
1496                         return 1;
1497                 if (setup_pd_annotations() != 0)
1498                         return 1;
1499         }
1500
1501         if (setup_output_format() != 0)
1502                 return 1;
1503
1504         if (opt_version)
1505                 show_version();
1506         else if (opt_list_devs)
1507                 show_dev_list();
1508         else if (opt_pds && opt_show)
1509                 show_pd_detail();
1510         else if (opt_show)
1511                 show_dev_detail();
1512         else if (opt_input_file)
1513                 load_input_file();
1514         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1515                 run_session();
1516         else
1517                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1518
1519         if (opt_pds)
1520                 srd_exit();
1521
1522         g_option_context_free(context);
1523         sr_exit();
1524
1525         return 0;
1526 }