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         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 struct sr_probe *analog_probelist[SR_MAX_NUM_PROBES];
 548         static uint64_t received_samples = 0;
 549         static int unitsize = 0;
 550         static int triggered = 0;
 551         static FILE *outfile = NULL;
 552         static int num_analog_probes = 0;
 553         struct sr_probe *probe;
 554         const struct sr_datafeed_logic *logic;
 555         const struct sr_datafeed_meta_logic *meta_logic;
 556         const struct sr_datafeed_analog *analog;
 557         const struct sr_datafeed_meta_analog *meta_analog;
 558         static int num_enabled_analog_probes = 0;
 559         int num_enabled_probes, sample_size, ret, i;
 560         uint64_t output_len, filter_out_len;
 561         uint8_t *output_buf, *filter_out;
 562         GString *out;
 563
 564         /* If the first packet to come in isn't a header, don't even try. */
 565         if (packet->type != SR_DF_HEADER && o == NULL)
 566                 return;
 567
 568         sample_size = -1;
 569         switch (packet->type) {
 570         case SR_DF_HEADER:
 571                 g_debug("cli: Received SR_DF_HEADER");
 572                 /* Initialize the output module. */
 573                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 574                         g_critical("Output module malloc failed.");
 575                         exit(1);
 576                 }
 577                 o->format = output_format;
 578                 o->sdi = (struct sr_dev_inst *)sdi;
 579                 o->param = output_format_param;
 580                 if (o->format->init) {
 581                         if (o->format->init(o) != SR_OK) {
 582                                 g_critical("Output format initialization failed.");
 583                                 exit(1);
 584                         }
 585                 }
 586                 break;
 587
 588         case SR_DF_END:
 589                 g_debug("cli: Received SR_DF_END");
 590                 if (!o) {
 591                         g_debug("cli: double end!");
 592                         break;
 593                 }
 594                 if (o->format->event) {
 595                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 596                         if (output_buf) {
 597                                 if (outfile)
 598                                         fwrite(output_buf, 1, output_len, outfile);
 599                                 g_free(output_buf);
 600                                 output_len = 0;
 601                         }
 602                 }
 603                 if (limit_samples && received_samples < limit_samples)
 604                         g_warning("Device only sent %" PRIu64 " samples.",
 605                                received_samples);
 606                 if (opt_continuous)
 607                         g_warning("Device stopped after %" PRIu64 " samples.",
 608                                received_samples);
 609                 if (outfile && outfile != stdout)
 610                         fclose(outfile);
 611
 612                 if (o->format->cleanup)
 613                         o->format->cleanup(o);
 614                 g_free(o);
 615                 o = NULL;
 616                 break;
 617
 618         case SR_DF_TRIGGER:
 619                 g_debug("cli: received SR_DF_TRIGGER");
 620                 if (o->format->event)
 621                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 622                                          &output_len);
 623                 triggered = 1;
 624                 break;
 625
 626         case SR_DF_META_LOGIC:
 627                 g_message("cli: Received SR_DF_META_LOGIC");
 628                 meta_logic = packet->payload;
 629                 num_enabled_probes = 0;
 630                 for (i = 0; i < meta_logic->num_probes; i++) {
 631                         probe = g_slist_nth_data(sdi->probes, i);
 632                         if (probe->enabled)
 633                                 logic_probelist[num_enabled_probes++] = probe->index;
 634                 }
 635                 logic_probelist[num_enabled_probes] = -1;
 636                 /* How many bytes we need to store num_enabled_probes bits */
 637                 unitsize = (num_enabled_probes + 7) / 8;
 638
 639                 outfile = stdout;
 640                 if (opt_output_file) {
 641                         if (default_output_format) {
 642                                 /* output file is in session format, which means we'll
 643                                  * dump everything in the datastore as it comes in,
 644                                  * and save from there after the session. */
 645                                 outfile = NULL;
 646                                 ret = sr_datastore_new(unitsize, &singleds);
 647                                 if (ret != SR_OK) {
 648                                         g_critical("Failed to create datastore.");
 649                                         exit(1);
 650                                 }
 651                         } else {
 652                                 /* saving to a file in whatever format was set
 653                                  * with --format, so all we need is a filehandle */
 654                                 outfile = g_fopen(opt_output_file, "wb");
 655                         }
 656                 }
 657                 if (opt_pds)
 658                         srd_session_start(num_enabled_probes, unitsize,
 659                                         meta_logic->samplerate);
 660                 break;
 661
 662         case SR_DF_LOGIC:
 663                 logic = packet->payload;
 664                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 665                 sample_size = logic->unitsize;
 666                 if (logic->length == 0)
 667                         break;
 668
 669                 /* Don't store any samples until triggered. */
 670                 if (opt_wait_trigger && !triggered)
 671                         break;
 672
 673                 if (limit_samples && received_samples >= limit_samples)
 674                         break;
 675
 676                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 677                                 logic->data, logic->length,
 678                                 &filter_out, &filter_out_len);
 679                 if (ret != SR_OK)
 680                         break;
 681
 682                 /* what comes out of the filter is guaranteed to be packed into the
 683                  * minimum size needed to support the number of samples at this sample
 684                  * size. however, the driver may have submitted too much -- cut off
 685                  * the buffer of the last packet according to the sample limit.
 686                  */
 687                 if (limit_samples && (received_samples + logic->length / sample_size >
 688                                 limit_samples * sample_size))
 689                         filter_out_len = limit_samples * sample_size - received_samples;
 690
 691                 if (singleds)
 692                         sr_datastore_put(singleds, filter_out,
 693                                         filter_out_len, sample_size, logic_probelist);
 694
 695                 if (opt_output_file && default_output_format)
 696                         /* saving to a session file, don't need to do anything else
 697                          * to this data for now. */
 698                         goto cleanup;
 699
 700                 if (opt_pds) {
 701                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
 702                                         filter_out_len) != SRD_OK)
 703                                 sr_session_stop();
 704                 } else {
 705                         output_len = 0;
 706                         if (o->format->data && packet->type == o->format->df_type)
 707                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 708                         if (output_buf) {
 709                                 fwrite(output_buf, 1, output_len, outfile);
 710                                 fflush(outfile);
 711                                 g_free(output_buf);
 712                         }
 713                 }
 714
 715                 cleanup:
 716                 g_free(filter_out);
 717                 received_samples += logic->length / sample_size;
 718                 break;
 719
 720         case SR_DF_META_ANALOG:
 721                 g_message("cli: Received SR_DF_META_ANALOG");
 722                 meta_analog = packet->payload;
 723                 num_analog_probes = meta_analog->num_probes;
 724                 num_enabled_analog_probes = 0;
 725                 for (i = 0; i < num_analog_probes; i++) {
 726                         probe = g_slist_nth_data(sdi->probes, i);
 727                         if (probe->enabled)
 728                                 analog_probelist[num_enabled_analog_probes++] = probe;
 729                 }
 730
 731                 outfile = stdout;
 732                 if (opt_output_file) {
 733                         if (default_output_format) {
 734                                 /* output file is in session format, which means we'll
 735                                  * dump everything in the datastore as it comes in,
 736                                  * and save from there after the session. */
 737                                 outfile = NULL;
 738                                 ret = sr_datastore_new(unitsize, &singleds);
 739                                 if (ret != SR_OK) {
 740                                         g_critical("Failed to create datastore.");
 741                                         exit(1);
 742                                 }
 743                         } else {
 744                                 /* saving to a file in whatever format was set
 745                                  * with --format, so all we need is a filehandle */
 746                                 outfile = g_fopen(opt_output_file, "wb");
 747                         }
 748                 }
 749                 break;
 750
 751         case SR_DF_ANALOG:
 752                 analog = packet->payload;
 753                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 754                 if (analog->num_samples == 0)
 755                         break;
 756
 757                 if (limit_samples && received_samples >= limit_samples)
 758                         break;
 759
 760                 if (o->format->data && packet->type == o->format->df_type) {
 761                         o->format->data(o, (const uint8_t *)analog->data,
 762                                         analog->num_samples * sizeof(float),
 763                                         &output_buf, &output_len);
 764                         if (output_buf) {
 765                                 fwrite(output_buf, 1, output_len, outfile);
 766                                 fflush(outfile);
 767                                 g_free(output_buf);
 768                         }
 769                 }
 770
 771                 received_samples += analog->num_samples;
 772                 break;
 773
 774         case SR_DF_FRAME_BEGIN:
 775                 g_debug("cli: received SR_DF_FRAME_BEGIN");
 776                 if (o->format->event) {
 777                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
 778                                          &output_len);
 779                         if (output_buf) {
 780                                 fwrite(output_buf, 1, output_len, outfile);
 781                                 fflush(outfile);
 782                                 g_free(output_buf);
 783                         }
 784                 }
 785                 break;
 786
 787         case SR_DF_FRAME_END:
 788                 g_debug("cli: received SR_DF_FRAME_END");
 789                 if (o->format->event) {
 790                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
 791                                          &output_len);
 792                         if (output_buf) {
 793                                 fwrite(output_buf, 1, output_len, outfile);
 794                                 fflush(outfile);
 795                                 g_free(output_buf);
 796                         }
 797                 }
 798                 break;
 799
 800         default:
 801                 g_message("received unknown packet type %d", packet->type);
 802         }
 803
 804         if (o && o->format->recv) {
 805                 out = o->format->recv(o, sdi, packet);
 806                 if (out && out->len) {
 807                         fwrite(out->str, 1, out->len, outfile);
 808                         fflush(outfile);
 809                 }
 810         }
 811
 812 }
 813
 814 /* Register the given PDs for this session.
 815  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 816  * That will instantiate two SPI decoders on the clock but different data
 817  * lines.
 818  */
 819 static int register_pds(struct sr_dev *dev, const char *pdstring)
 820 {
 821         GHashTable *pd_opthash;
 822         struct srd_decoder_inst *di;
 823         int ret;
 824         char **pdtokens, **pdtok, *pd_name;
 825
 826         (void)dev;
 827
 828         ret = 0;
 829         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
 830                         g_free, NULL);
 831         pd_name = NULL;
 832         pd_opthash = NULL;
 833         pdtokens = g_strsplit(pdstring, ",", 0);
 834         for (pdtok = pdtokens; *pdtok; pdtok++) {
 835                 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
 836                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
 837                         goto err_out;
 838                 }
 839
 840                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 841                 g_hash_table_remove(pd_opthash, "sigrok_key");
 842                 if (srd_decoder_load(pd_name) != SRD_OK) {
 843                         g_critical("Failed to load protocol decoder %s.", pd_name);
 844                         ret = 1;
 845                         goto err_out;
 846                 }
 847                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 848                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
 849                         ret = 1;
 850                         goto err_out;
 851                 }
 852
 853                 /* If no annotation list was specified, add them all in now.
 854                  * This will be pared down later to leave only the last PD
 855                  * in the stack.
 856                  */
 857                 if (!opt_pd_annotations)
 858                         g_hash_table_insert(pd_ann_visible,
 859                                             g_strdup(di->inst_id), NULL);
 860
 861                 /* Any keys left in the options hash are probes, where the key
 862                  * is the probe name as specified in the decoder class, and the
 863                  * value is the probe number i.e. the order in which the PD's
 864                  * incoming samples are arranged. */
 865                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
 866                         ret = 1;
 867                         goto err_out;
 868                 }
 869                 g_hash_table_destroy(pd_opthash);
 870                 pd_opthash = NULL;
 871         }
 872
 873 err_out:
 874         g_strfreev(pdtokens);
 875         if (pd_opthash)
 876                 g_hash_table_destroy(pd_opthash);
 877         if (pd_name)
 878                 g_free(pd_name);
 879
 880         return ret;
 881 }
 882
 883 int setup_pd_stack(void)
 884 {
 885         struct srd_decoder_inst *di_from, *di_to;
 886         int ret, i;
 887         char **pds, **ids;
 888
 889         /* Set up the protocol decoder stack. */
 890         pds = g_strsplit(opt_pds, ",", 0);
 891         if (g_strv_length(pds) > 1) {
 892                 if (opt_pd_stack) {
 893                         /* A stack setup was specified, use that. */
 894                         g_strfreev(pds);
 895                         pds = g_strsplit(opt_pd_stack, ",", 0);
 896                         if (g_strv_length(pds) < 2) {
 897                                 g_strfreev(pds);
 898                                 g_critical("Specify at least two protocol decoders to stack.");
 899                                 return 1;
 900                         }
 901                 }
 902
 903                 /* First PD goes at the bottom of the stack. */
 904                 ids = g_strsplit(pds[0], ":", 0);
 905                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
 906                         g_strfreev(ids);
 907                         g_critical("Cannot stack protocol decoder '%s': "
 908                                         "instance not found.", pds[0]);
 909                         return 1;
 910                 }
 911                 g_strfreev(ids);
 912
 913                 /* Every subsequent PD goes on top. */
 914                 for (i = 1; pds[i]; i++) {
 915                         ids = g_strsplit(pds[i], ":", 0);
 916                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
 917                                 g_strfreev(ids);
 918                                 g_critical("Cannot stack protocol decoder '%s': "
 919                                                 "instance not found.", pds[i]);
 920                                 return 1;
 921                         }
 922                         g_strfreev(ids);
 923                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
 924                                 return 1;
 925
 926                         /* Don't show annotation from this PD. Only the last PD in
 927                          * the stack will be left on the annotation list (unless
 928                          * the annotation list was specifically provided).
 929                          */
 930                         if (!opt_pd_annotations)
 931                                 g_hash_table_remove(pd_ann_visible,
 932                                                     di_from->inst_id);
 933
 934                         di_from = di_to;
 935                 }
 936         }
 937         g_strfreev(pds);
 938
 939         return 0;
 940 }
 941
 942 int setup_pd_annotations(void)
 943 {
 944         GSList *l;
 945         struct srd_decoder *dec;
 946         int ann;
 947         char **pds, **pdtok, **keyval, **ann_descr;
 948
 949         /* Set up custom list of PDs and annotations to show. */
 950         if (opt_pd_annotations) {
 951                 pds = g_strsplit(opt_pd_annotations, ",", 0);
 952                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
 953                         ann = 0;
 954                         keyval = g_strsplit(*pdtok, "=", 0);
 955                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
 956                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
 957                                 return 1;
 958                         }
 959                         if (!dec->annotations) {
 960                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
 961                                 return 1;
 962                         }
 963                         if (g_strv_length(keyval) == 2) {
 964                                 for (l = dec->annotations; l; l = l->next, ann++) {
 965                                         ann_descr = l->data;
 966                                         if (!canon_cmp(ann_descr[0], keyval[1]))
 967                                                 /* Found it. */
 968                                                 break;
 969                                 }
 970                                 if (!l) {
 971                                         g_critical("Annotation '%s' not found "
 972                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
 973                                         return 1;
 974                                 }
 975                         }
 976                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
 977                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
 978                         g_strfreev(keyval);
 979                 }
 980                 g_strfreev(pds);
 981         }
 982
 983         return 0;
 984 }
 985
 986 int setup_output_format(void)
 987 {
 988         GHashTable *fmtargs;
 989         GHashTableIter iter;
 990         gpointer key, value;
 991         struct sr_output_format **outputs;
 992         int i;
 993         char *fmtspec;
 994
 995         if (!opt_output_format) {
 996                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
 997                 /* we'll need to remember this so when saving to a file
 998                  * later, sigrok session format will be used.
 999                  */
1000                 default_output_format = TRUE;
1001         }
1002
1003         fmtargs = parse_generic_arg(opt_output_format, TRUE);
1004         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1005         if (!fmtspec) {
1006                 g_critical("Invalid output format.");
1007                 return 1;
1008         }
1009         outputs = sr_output_list();
1010         for (i = 0; outputs[i]; i++) {
1011                 if (strcmp(outputs[i]->id, fmtspec))
1012                         continue;
1013                 g_hash_table_remove(fmtargs, "sigrok_key");
1014                 output_format = outputs[i];
1015                 g_hash_table_iter_init(&iter, fmtargs);
1016                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1017                         /* only supporting one parameter per output module
1018                          * for now, and only its value */
1019                         output_format_param = g_strdup(value);
1020                         break;
1021                 }
1022                 break;
1023         }
1024         if (!output_format) {
1025                 g_critical("Invalid output format %s.", opt_output_format);
1026                 return 1;
1027         }
1028         g_hash_table_destroy(fmtargs);
1029
1030         return 0;
1031 }
1032
1033 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
1034 {
1035         int i;
1036         char **annotations;
1037         gpointer ann_format;
1038
1039         /* 'cb_data' is not used in this specific callback. */
1040         (void)cb_data;
1041
1042         if (!pd_ann_visible)
1043                 return;
1044
1045         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
1046                         NULL, &ann_format))
1047                 /* Not in the list of PDs whose annotations we're showing. */
1048                 return;
1049
1050         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
1051                 /* We don't want this particular format from the PD. */
1052                 return;
1053
1054         annotations = pdata->data;
1055         if (opt_loglevel > SR_LOG_WARN)
1056                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1057         printf("%s: ", pdata->pdo->proto_id);
1058         for (i = 0; annotations[i]; i++)
1059                 printf("\"%s\" ", annotations[i]);
1060         printf("\n");
1061         fflush(stdout);
1062 }
1063
1064 static int select_probes(struct sr_dev_inst *sdi)
1065 {
1066         struct sr_probe *probe;
1067         GSList *selected_probes, *l;
1068
1069         if (!opt_probes)
1070                 return SR_OK;
1071
1072         if (!(selected_probes = parse_probestring(sdi, opt_probes)))
1073                 return SR_ERR;
1074
1075         for (l = sdi->probes; l; l = l->next) {
1076                 probe = l->data;
1077                 if (g_slist_find(selected_probes, probe))
1078                         probe->enabled = TRUE;
1079                 else
1080                         probe->enabled = FALSE;
1081         }
1082         g_slist_free(selected_probes);
1083
1084         return SR_OK;
1085 }
1086
1087 /**
1088  * Return the input file format which the CLI tool should use.
1089  *
1090  * If the user specified -I / --input-format, use that one. Otherwise, try to
1091  * autodetect the format as good as possible. Failing that, return NULL.
1092  *
1093  * @param filename The filename of the input file. Must not be NULL.
1094  * @param opt The -I / --input-file option the user specified (or NULL).
1095  *
1096  * @return A pointer to the 'struct sr_input_format' that should be used,
1097  *         or NULL if no input format was selected or auto-detected.
1098  */
1099 static struct sr_input_format *determine_input_file_format(
1100                         const char *filename, const char *opt)
1101 {
1102         int i;
1103         struct sr_input_format **inputs;
1104
1105         /* If there are no input formats, return NULL right away. */
1106         inputs = sr_input_list();
1107         if (!inputs) {
1108                 g_critical("No supported input formats available.");
1109                 return NULL;
1110         }
1111
1112         /* If the user specified -I / --input-format, use that one. */
1113         if (opt) {
1114                 for (i = 0; inputs[i]; i++) {
1115                         if (strcasecmp(inputs[i]->id, opt))
1116                                 continue;
1117                         g_debug("Using user-specified input file format '%s'.",
1118                                         inputs[i]->id);
1119                         return inputs[i];
1120                 }
1121
1122                 /* The user specified an unknown input format, return NULL. */
1123                 g_critical("Error: specified input file format '%s' is "
1124                         "unknown.", opt);
1125                 return NULL;
1126         }
1127
1128         /* Otherwise, try to find an input module that can handle this file. */
1129         for (i = 0; inputs[i]; i++) {
1130                 if (inputs[i]->format_match(filename))
1131                         break;
1132         }
1133
1134         /* Return NULL if no input module wanted to touch this. */
1135         if (!inputs[i]) {
1136                 g_critical("Error: no matching input module found.");
1137                 return NULL;
1138         }
1139
1140         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1141                 inputs[i]->id, filename);
1142
1143         return inputs[i];
1144 }
1145
1146 static void load_input_file_format(void)
1147 {
1148         GHashTable *fmtargs = NULL;
1149         struct stat st;
1150         struct sr_input *in;
1151         struct sr_input_format *input_format;
1152         char *fmtspec = NULL;
1153
1154         if (opt_input_format) {
1155                 fmtargs = parse_generic_arg(opt_input_format, TRUE);
1156                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1157         }
1158
1159         if (!(input_format = determine_input_file_format(opt_input_file,
1160                                                    fmtspec))) {
1161                 /* The exact cause was already logged. */
1162                 return;
1163         }
1164
1165         if (fmtargs)
1166                 g_hash_table_remove(fmtargs, "sigrok_key");
1167
1168         if (stat(opt_input_file, &st) == -1) {
1169                 g_critical("Failed to load %s: %s", opt_input_file,
1170                         strerror(errno));
1171                 exit(1);
1172         }
1173
1174         /* Initialize the input module. */
1175         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1176                 g_critical("Failed to allocate input module.");
1177                 exit(1);
1178         }
1179         in->format = input_format;
1180         in->param = fmtargs;
1181         if (in->format->init) {
1182                 if (in->format->init(in) != SR_OK) {
1183                         g_critical("Input format init failed.");
1184                         exit(1);
1185                 }
1186         }
1187
1188         if (select_probes(in->sdi) > 0)
1189             return;
1190
1191         sr_session_new();
1192         sr_session_datafeed_callback_add(datafeed_in);
1193         if (sr_session_dev_add(in->sdi) != SR_OK) {
1194                 g_critical("Failed to use device.");
1195                 sr_session_destroy();
1196                 return;
1197         }
1198
1199         input_format->loadfile(in, opt_input_file);
1200         if (opt_output_file && default_output_format) {
1201                 if (sr_session_save(opt_output_file, in->sdi, singleds) != SR_OK)
1202                         g_critical("Failed to save session.");
1203         }
1204         sr_session_destroy();
1205
1206         if (fmtargs)
1207                 g_hash_table_destroy(fmtargs);
1208 }
1209
1210 static void load_input_file(void)
1211 {
1212
1213         if (sr_session_load(opt_input_file) == SR_OK) {
1214                 /* sigrok session file */
1215                 sr_session_datafeed_callback_add(datafeed_in);
1216                 sr_session_start();
1217                 sr_session_run();
1218                 sr_session_stop();
1219         }
1220         else {
1221                 /* fall back on input modules */
1222                 load_input_file_format();
1223         }
1224 }
1225
1226 static int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
1227 {
1228         const struct sr_hwcap_option *hwo;
1229         GHashTableIter iter;
1230         gpointer key, value;
1231         int ret;
1232         float tmp_float;
1233         uint64_t tmp_u64;
1234         struct sr_rational tmp_rat;
1235         gboolean tmp_bool;
1236         void *val;
1237
1238         g_hash_table_iter_init(&iter, args);
1239         while (g_hash_table_iter_next(&iter, &key, &value)) {
1240                 if (!(hwo = sr_devopt_name_get(key))) {
1241                         g_critical("Unknown device option '%s'.", (char *) key);
1242                         return SR_ERR;
1243                 }
1244
1245                 if ((value == NULL) &&
1246                         (hwo->type != SR_T_BOOL)) {
1247                         g_critical("Option '%s' needs a value.", (char *)key);
1248                         return SR_ERR;
1249                 }
1250                 val = NULL;
1251                 switch (hwo->type) {
1252                 case SR_T_UINT64:
1253                         ret = sr_parse_sizestring(value, &tmp_u64);
1254                         if (ret != SR_OK)
1255                                 break;
1256                         val = &tmp_u64;
1257                         break;
1258                 case SR_T_CHAR:
1259                         val = value;
1260                         break;
1261                 case SR_T_BOOL:
1262                         if (!value)
1263                                 tmp_bool = TRUE;
1264                         else
1265                                 tmp_bool = sr_parse_boolstring(value);
1266                         val = &tmp_bool;
1267                         break;
1268                 case SR_T_FLOAT:
1269                         tmp_float = strtof(value, NULL);
1270                         val = &tmp_float;
1271                         break;
1272                 case SR_T_RATIONAL_PERIOD:
1273                         if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1274                                 break;
1275                         val = &tmp_rat;
1276                         break;
1277                 case SR_T_RATIONAL_VOLT:
1278                         if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1279                                 break;
1280                         val = &tmp_rat;
1281                         break;
1282                 default:
1283                         ret = SR_ERR;
1284                 }
1285                 if (val)
1286                         ret = sr_dev_config_set(sdi, hwo->hwcap, val);
1287                 if (ret != SR_OK) {
1288                         g_critical("Failed to set device option '%s'.", (char *)key);
1289                         return ret;
1290                 }
1291                 else
1292                         break;
1293         }
1294
1295         return SR_OK;
1296 }
1297
1298 static int set_limit_time(const struct sr_dev_inst *sdi)
1299 {
1300         uint64_t time_msec;
1301         uint64_t *samplerate;
1302
1303         time_msec = sr_parse_timestring(opt_time);
1304         if (time_msec == 0) {
1305                 g_critical("Invalid time '%s'", opt_time);
1306                 sr_session_destroy();
1307                 return SR_ERR;
1308         }
1309
1310         if (sr_driver_hwcap_exists(sdi->driver, SR_HWCAP_LIMIT_MSEC)) {
1311                 if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1312                         g_critical("Failed to configure time limit.");
1313                         sr_session_destroy();
1314                         return SR_ERR;
1315                 }
1316         }
1317         else {
1318                 /* time limit set, but device doesn't support this...
1319                  * convert to samples based on the samplerate.
1320                  */
1321                 limit_samples = 0;
1322                 if (sr_dev_has_hwcap(sdi, SR_HWCAP_SAMPLERATE)) {
1323                         sr_info_get(sdi->driver, SR_DI_CUR_SAMPLERATE,
1324                                         (const void **)&samplerate, sdi);
1325                         limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1326                 }
1327                 if (limit_samples == 0) {
1328                         g_critical("Not enough time at this samplerate.");
1329                         sr_session_destroy();
1330                         return SR_ERR;
1331                 }
1332
1333                 if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES,
1334                                         &limit_samples) != SR_OK) {
1335                         g_critical("Failed to configure time-based sample limit.");
1336                         sr_session_destroy();
1337                         return SR_ERR;
1338                 }
1339         }
1340
1341         return SR_OK;
1342 }
1343
1344 static void run_session(void)
1345 {
1346         GSList *devices;
1347         GHashTable *devargs;
1348         struct sr_dev_inst *sdi;
1349         int max_probes, i;
1350         char **triggerlist;
1351
1352         devices = device_scan();
1353         if (!devices) {
1354                 g_critical("No devices found.");
1355                 return;
1356         }
1357         if (g_slist_length(devices) > 1) {
1358                 g_critical("sigrok-cli only supports one device for capturing.");
1359                 return;
1360         }
1361         sdi = devices->data;
1362
1363         sr_session_new();
1364         sr_session_datafeed_callback_add(datafeed_in);
1365
1366         if (sr_session_dev_add(sdi) != SR_OK) {
1367                 g_critical("Failed to use device.");
1368                 sr_session_destroy();
1369                 return;
1370         }
1371
1372         if (opt_dev) {
1373                 if ((devargs = parse_generic_arg(opt_dev, FALSE))) {
1374                         if (set_dev_options(sdi, devargs) != SR_OK)
1375                                 return;
1376                         g_hash_table_destroy(devargs);
1377                 }
1378         }
1379
1380         if (select_probes(sdi) != SR_OK) {
1381                 g_critical("Failed to set probes.");
1382                 sr_session_destroy();
1383                 return;
1384         }
1385
1386         if (opt_triggers) {
1387                 if (!(triggerlist = sr_parse_triggerstring(sdi, opt_triggers))) {
1388                         sr_session_destroy();
1389                         return;
1390                 }
1391                 max_probes = g_slist_length(sdi->probes);
1392                 for (i = 0; i < max_probes; i++) {
1393                         if (triggerlist[i]) {
1394                                 sr_dev_trigger_set(sdi, i, triggerlist[i]);
1395                                 g_free(triggerlist[i]);
1396                         }
1397                 }
1398                 g_free(triggerlist);
1399         }
1400
1401         if (opt_continuous) {
1402                 if (!sr_driver_hwcap_exists(sdi->driver, SR_HWCAP_CONTINUOUS)) {
1403                         g_critical("This device does not support continuous sampling.");
1404                         sr_session_destroy();
1405                         return;
1406                 }
1407         }
1408
1409         if (opt_time) {
1410                 if (set_limit_time(sdi) != SR_OK) {
1411                         sr_session_destroy();
1412                         return;
1413                 }
1414         }
1415
1416         if (opt_samples) {
1417                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1418                                 || (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES,
1419                                                 &limit_samples) != SR_OK)) {
1420                         g_critical("Failed to configure sample limit.");
1421                         sr_session_destroy();
1422                         return;
1423                 }
1424         }
1425
1426         if (opt_frames) {
1427                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1428                                 || (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_FRAMES,
1429                                                 &limit_frames) != SR_OK)) {
1430                         g_critical("Failed to configure frame limit.");
1431                         sr_session_destroy();
1432                         return;
1433                 }
1434         }
1435
1436         if (sr_session_start() != SR_OK) {
1437                 g_critical("Failed to start session.");
1438                 sr_session_destroy();
1439                 return;
1440         }
1441
1442         if (opt_continuous)
1443                 add_anykey();
1444
1445         sr_session_run();
1446
1447         if (opt_continuous)
1448                 clear_anykey();
1449
1450         if (opt_output_file && default_output_format) {
1451                 if (sr_session_save(opt_output_file, sdi, singleds) != SR_OK)
1452                         g_critical("Failed to save session.");
1453         }
1454         sr_session_destroy();
1455         g_slist_free(devices);
1456
1457 }
1458
1459 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1460                    const gchar *message, gpointer cb_data)
1461 {
1462         (void)log_domain;
1463         (void)cb_data;
1464
1465         /*
1466          * All messages, warnings, errors etc. go to stderr (not stdout) in
1467          * order to not mess up the CLI tool data output, e.g. VCD output.
1468          */
1469         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1470                         || opt_loglevel > SR_LOG_WARN) {
1471                 fprintf(stderr, "%s\n", message);
1472                 fflush(stderr);
1473         }
1474 }
1475
1476 int main(int argc, char **argv)
1477 {
1478         int ret = 1;
1479         GOptionContext *context;
1480         GError *error;
1481
1482         g_log_set_default_handler(logger, NULL);
1483
1484         error = NULL;
1485         context = g_option_context_new(NULL);
1486         g_option_context_add_main_entries(context, optargs, NULL);
1487
1488         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1489                 g_critical("%s", error->message);
1490                 goto done;
1491         }
1492
1493         /* Set the loglevel (amount of messages to output) for libsigrok. */
1494         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1495                 goto done;
1496
1497         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1498         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1499                 goto done;
1500
1501         if (sr_init(&sr_ctx) != SR_OK)
1502                 goto done;
1503
1504         if (opt_pds) {
1505                 if (srd_init(NULL) != SRD_OK)
1506                         goto done;
1507                 if (register_pds(NULL, opt_pds) != 0)
1508                         goto done;
1509                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1510                                 show_pd_annotations, NULL) != SRD_OK)
1511                         goto done;
1512                 if (setup_pd_stack() != 0)
1513                         goto done;
1514                 if (setup_pd_annotations() != 0)
1515                         goto done;
1516         }
1517
1518         if (setup_output_format() != 0)
1519                 goto done;
1520
1521         if (opt_version)
1522                 show_version();
1523         else if (opt_list_devs)
1524                 show_dev_list();
1525         else if (opt_pds && opt_show)
1526                 show_pd_detail();
1527         else if (opt_show)
1528                 show_dev_detail();
1529         else if (opt_input_file)
1530                 load_input_file();
1531         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1532                 run_session();
1533         else
1534                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1535
1536         if (opt_pds)
1537                 srd_exit();
1538
1539         ret = 0;
1540
1541 done:
1542         if (sr_ctx)
1543                 sr_exit(sr_ctx);
1544
1545         g_option_context_free(context);
1546
1547         return ret;
1548 }