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 GByteArray *savebuf;
  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_config. */
 116 static GSList *hash_to_hwopt(GHashTable *hash)
 117 {
 118         const struct sr_config_info *srci;
 119         struct sr_config *src;
 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 (!(srci = sr_config_info_name_get(key))) {
 129                         g_critical("Unknown option %s", key);
 130                         return NULL;
 131                 }
 132                 src = g_try_malloc(sizeof(struct sr_config));
 133                 src->key = srci->key;
 134                 value = g_hash_table_lookup(hash, key);
 135                 src->value = g_strdup(value);
 136                 opts = g_slist_append(opts, src);
 137         }
 138         g_list_free(keys);
 139
 140         return opts;
 141 }
 142
 143 static void free_drvopts(struct sr_config *src)
 144 {
 145         g_free((void *)src->value);
 146         g_free(src);
 147 }
 148
 149 static GSList *device_scan(void)
 150 {
 151         struct sr_dev_driver **drivers, *driver;
 152         GHashTable *drvargs;
 153         GSList *drvopts, *devices, *tmpdevs, *l;
 154         int i;
 155         char *drvname;
 156
 157         if (opt_drv) {
 158                 drvargs = parse_generic_arg(opt_drv, TRUE);
 159                 drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
 160                 g_hash_table_remove(drvargs, "sigrok_key");
 161                 driver = NULL;
 162                 drivers = sr_driver_list();
 163                 for (i = 0; drivers[i]; i++) {
 164                         if (strcmp(drivers[i]->name, drvname))
 165                                 continue;
 166                         driver = drivers[i];
 167                 }
 168                 if (!driver) {
 169                         g_critical("Driver %s not found.", drvname);
 170                         return NULL;
 171                 }
 172                 g_free(drvname);
 173                 if (sr_driver_init(sr_ctx, driver) != SR_OK) {
 174                         g_critical("Failed to initialize driver.");
 175                         return NULL;
 176                 }
 177                 drvopts = NULL;
 178                 if (g_hash_table_size(drvargs) > 0)
 179                         if (!(drvopts = hash_to_hwopt(drvargs)))
 180                                 /* Unknown options, already logged. */
 181                                 return NULL;
 182                 devices = sr_driver_scan(driver, drvopts);
 183                 g_slist_free_full(drvopts, (GDestroyNotify)free_drvopts);
 184         } else {
 185                 /* No driver specified, let them all scan on their own. */
 186                 devices = NULL;
 187                 drivers = sr_driver_list();
 188                 for (i = 0; drivers[i]; i++) {
 189                         driver = drivers[i];
 190                         if (sr_driver_init(sr_ctx, driver) != SR_OK) {
 191                                 g_critical("Failed to initialize driver.");
 192                                 return NULL;
 193                         }
 194                         tmpdevs = sr_driver_scan(driver, NULL);
 195                         for (l = tmpdevs; l; l = l->next)
 196                                 devices = g_slist_append(devices, l->data);
 197                         g_slist_free(tmpdevs);
 198                 }
 199         }
 200
 201         return devices;
 202 }
 203
 204 static void show_version(void)
 205 {
 206         const GSList *l;
 207         struct sr_dev_driver **drivers;
 208         struct sr_input_format **inputs;
 209         struct sr_output_format **outputs;
 210         struct srd_decoder *dec;
 211         int i;
 212
 213         printf("sigrok-cli %s\n\n", VERSION);
 214
 215         printf("Using libsigrok %s (lib version %s).\n",
 216                sr_package_version_string_get(), sr_lib_version_string_get());
 217         printf("Using libsigrokdecode %s (lib version %s).\n\n",
 218                srd_package_version_string_get(), srd_lib_version_string_get());
 219
 220         printf("Supported hardware drivers:\n");
 221         drivers = sr_driver_list();
 222         for (i = 0; drivers[i]; i++) {
 223                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
 224         }
 225         printf("\n");
 226
 227         printf("Supported input formats:\n");
 228         inputs = sr_input_list();
 229         for (i = 0; inputs[i]; i++)
 230                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
 231         printf("\n");
 232
 233         printf("Supported output formats:\n");
 234         outputs = sr_output_list();
 235         for (i = 0; outputs[i]; i++)
 236                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
 237         printf("\n");
 238
 239         if (srd_init(NULL) == SRD_OK) {
 240                 printf("Supported protocol decoders:\n");
 241                 srd_decoder_load_all();
 242                 for (l = srd_decoder_list(); l; l = l->next) {
 243                         dec = l->data;
 244                         printf("  %-20s %s\n", dec->id, dec->longname);
 245                         /* Print protocol description upon "-l 3" or higher. */
 246                         if (opt_loglevel >= SR_LOG_INFO)
 247                                 printf("  %-20s %s\n", "", dec->desc);
 248                 }
 249                 srd_exit();
 250         }
 251         printf("\n");
 252 }
 253
 254 static void print_dev_line(const struct sr_dev_inst *sdi)
 255 {
 256         struct sr_probe *probe;
 257         GSList *l;
 258
 259         if (sdi->vendor && sdi->vendor[0])
 260                 printf("%s ", sdi->vendor);
 261         if (sdi->model && sdi->model[0])
 262                 printf("%s ", sdi->model);
 263         if (sdi->version && sdi->version[0])
 264                 printf("%s ", sdi->version);
 265         if (sdi->probes) {
 266                 if (g_slist_length(sdi->probes) == 1) {
 267                         probe = sdi->probes->data;
 268                         printf("with 1 probe: %s", probe->name);
 269                 } else {
 270                         printf("with %d probes:", g_slist_length(sdi->probes));
 271                         for (l = sdi->probes; l; l = l->next) {
 272                                 probe = l->data;
 273                                 printf(" %s", probe->name);
 274                         }
 275                 }
 276         }
 277         printf("\n");
 278 }
 279
 280 static void show_dev_list(void)
 281 {
 282         struct sr_dev_inst *sdi;
 283         GSList *devices, *l;
 284
 285         if (!(devices = device_scan()))
 286                 return;
 287
 288         printf("The following devices were found:\n");
 289         for (l = devices; l; l = l->next) {
 290                 sdi = l->data;
 291                 print_dev_line(sdi);
 292         }
 293         g_slist_free(devices);
 294
 295 }
 296
 297 static void show_dev_detail(void)
 298 {
 299         struct sr_dev_inst *sdi;
 300         const struct sr_config_info *srci;
 301         const struct sr_samplerates *samplerates;
 302         struct sr_rational *rationals;
 303         GSList *devices;
 304         uint64_t *integers;
 305         const int *hwopts, *hwcaps;
 306         int cap, num_devices, n, i;
 307         char *s, *title;
 308         const char *charopts, **stropts;
 309
 310         if (!(devices = device_scan())) {
 311                 g_critical("No devices found.");
 312                 return;
 313         }
 314
 315         num_devices = g_slist_length(devices);
 316         if (num_devices > 1) {
 317                 if (!opt_dev) {
 318                         g_critical("%d devices found. Use --list-devices to show them, "
 319                                         "and --device to select one.", num_devices);
 320                         return;
 321                 }
 322                 /* opt_dev is NULL if not specified, which is fine. */
 323                 n = strtol(opt_dev, NULL, 10);
 324                 if (n >= num_devices) {
 325                         g_critical("%d devices found, numbered starting from 0.",
 326                                         num_devices);
 327                         return;
 328                 }
 329                 sdi = g_slist_nth_data(devices, n);
 330         } else
 331                 sdi = g_slist_nth_data(devices, 0);
 332
 333         print_dev_line(sdi);
 334
 335         if (sr_config_list(sdi->driver, SR_CONF_TRIGGER_TYPE, (const void **)&charopts,
 336                         sdi) == SR_OK && charopts) {
 337                 printf("Supported triggers: ");
 338                 while (*charopts) {
 339                         printf("%c ", *charopts);
 340                         charopts++;
 341                 }
 342                 printf("\n");
 343         }
 344
 345         if ((sr_config_list(sdi->driver, SR_CONF_SCAN_OPTIONS, (const void **)&hwopts,
 346                         NULL) == SR_OK) && hwopts) {
 347                 printf("Supported driver options:\n");
 348                 for (i = 0; hwopts[i]; i++) {
 349                         if (!(srci = sr_config_info_get(hwopts[i])))
 350                                 continue;
 351                         printf("    %s\n", srci->id);
 352                 }
 353         }
 354
 355         title = "Supported device options:\n";
 356         if ((sr_config_list(sdi->driver, SR_CONF_DEVICE_OPTIONS, (const void **)&hwcaps,
 357                         NULL) != SR_OK) || !hwcaps)
 358                 /* Driver supports no device instance options. */
 359                 return;
 360
 361         for (cap = 0; hwcaps[cap]; cap++) {
 362                 if (!(srci = sr_config_info_get(hwcaps[cap])))
 363                         continue;
 364
 365                 if (title) {
 366                         printf("%s", title);
 367                         title = NULL;
 368                 }
 369
 370                 if (srci->key == SR_CONF_PATTERN_MODE) {
 371                         /* Pattern generator modes */
 372                         printf("    %s", srci->id);
 373                         if (sr_config_list(sdi->driver, SR_CONF_PATTERN_MODE,
 374                                         (const void **)&stropts, sdi) == SR_OK) {
 375                                 printf(" - supported patterns:\n");
 376                                 for (i = 0; stropts[i]; i++)
 377                                         printf("      %s\n", stropts[i]);
 378                         } else {
 379                                 printf("\n");
 380                         }
 381
 382                 } else if (srci->key == SR_CONF_SAMPLERATE) {
 383                         /* Supported samplerates */
 384                         printf("    %s", srci->id);
 385                         if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
 386                                         (const void **)&samplerates, sdi) != SR_OK) {
 387                                 printf("\n");
 388                                 continue;
 389                         }
 390                         if (samplerates->step) {
 391                                 /* low */
 392                                 if (!(s = sr_samplerate_string(samplerates->low)))
 393                                         continue;
 394                                 printf(" (%s", s);
 395                                 g_free(s);
 396                                 /* high */
 397                                 if (!(s = sr_samplerate_string(samplerates->high)))
 398                                         continue;
 399                                 printf(" - %s", s);
 400                                 g_free(s);
 401                                 /* step */
 402                                 if (!(s = sr_samplerate_string(samplerates->step)))
 403                                         continue;
 404                                 printf(" in steps of %s)\n", s);
 405                                 g_free(s);
 406                         } else {
 407                                 printf(" - supported samplerates:\n");
 408                                 for (i = 0; samplerates->list[i]; i++)
 409                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
 410                         }
 411
 412                 } else if (srci->key == SR_CONF_BUFFERSIZE) {
 413                         /* Supported buffer sizes */
 414                         printf("    %s", srci->id);
 415                         if (sr_config_list(sdi->driver, SR_CONF_BUFFERSIZE,
 416                                         (const void **)&integers, sdi) != SR_OK) {
 417                                 printf("\n");
 418                                 continue;
 419                         }
 420                         printf(" - supported buffer sizes:\n");
 421                         for (i = 0; integers[i]; i++)
 422                                 printf("      %"PRIu64"\n", integers[i]);
 423
 424                 } else if (srci->key == SR_CONF_TIMEBASE) {
 425                         /* Supported time bases */
 426                         printf("    %s", srci->id);
 427                         if (sr_config_list(sdi->driver, SR_CONF_TIMEBASE,
 428                                         (const void **)&rationals, sdi) != SR_OK) {
 429                                 printf("\n");
 430                                 continue;
 431                         }
 432                         printf(" - supported time bases:\n");
 433                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 434                                 printf("      %s\n", sr_period_string(
 435                                                 rationals[i].p * rationals[i].q));
 436
 437                 } else if (srci->key == SR_CONF_TRIGGER_SOURCE) {
 438                         /* Supported trigger sources */
 439                         printf("    %s", srci->id);
 440                         if (sr_config_list(sdi->driver, SR_CONF_TRIGGER_SOURCE,
 441                                         (const void **)&stropts, sdi) != SR_OK) {
 442                                 printf("\n");
 443                                 continue;
 444                         }
 445                         printf(" - supported trigger sources:\n");
 446                         for (i = 0; stropts[i]; i++)
 447                                 printf("      %s\n", stropts[i]);
 448
 449                 } else if (srci->key == SR_CONF_FILTER) {
 450                         /* Supported filters */
 451                         printf("    %s", srci->id);
 452                         if (sr_config_list(sdi->driver, SR_CONF_FILTER,
 453                                         (const void **)&stropts, sdi) != SR_OK) {
 454                                 printf("\n");
 455                                 continue;
 456                         }
 457                         printf(" - supported filter targets:\n");
 458                         for (i = 0; stropts[i]; i++)
 459                                 printf("      %s\n", stropts[i]);
 460
 461                 } else if (srci->key == SR_CONF_VDIV) {
 462                         /* Supported volts/div values */
 463                         printf("    %s", srci->id);
 464                         if (sr_config_list(sdi->driver, SR_CONF_VDIV,
 465                                         (const void **)&rationals, sdi) != SR_OK) {
 466                                 printf("\n");
 467                                 continue;
 468                         }
 469                         printf(" - supported volts/div:\n");
 470                         for (i = 0; rationals[i].p && rationals[i].q; i++)
 471                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
 472
 473                 } else if (srci->key == SR_CONF_COUPLING) {
 474                         /* Supported coupling settings */
 475                         printf("    %s", srci->id);
 476                         if (sr_config_list(sdi->driver, SR_CONF_COUPLING,
 477                                         (const void **)&stropts, sdi) != SR_OK) {
 478                                 printf("\n");
 479                                 continue;
 480                         }
 481                         printf(" - supported coupling options:\n");
 482                         for (i = 0; stropts[i]; i++)
 483                                 printf("      %s\n", stropts[i]);
 484
 485                 } else {
 486                         /* Everything else */
 487                         printf("    %s\n", srci->id);
 488                 }
 489         }
 490
 491 }
 492
 493 static void show_pd_detail(void)
 494 {
 495         GSList *l;
 496         struct srd_decoder *dec;
 497         char **pdtokens, **pdtok, **ann, *doc;
 498         struct srd_probe *p;
 499
 500         pdtokens = g_strsplit(opt_pds, ",", -1);
 501         for (pdtok = pdtokens; *pdtok; pdtok++) {
 502                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 503                         g_critical("Protocol decoder %s not found.", *pdtok);
 504                         return;
 505                 }
 506                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 507                                 dec->id, dec->name, dec->longname, dec->desc);
 508                 printf("License: %s\n", dec->license);
 509                 printf("Annotations:\n");
 510                 if (dec->annotations) {
 511                         for (l = dec->annotations; l; l = l->next) {
 512                                 ann = l->data;
 513                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 514                         }
 515                 } else {
 516                         printf("None.\n");
 517                 }
 518                 /* TODO: Print supported decoder options. */
 519                 printf("Required probes:\n");
 520                 if (dec->probes) {
 521                         for (l = dec->probes; l; l = l->next) {
 522                                 p = l->data;
 523                                 printf("- %s (%s): %s\n",
 524                                        p->name, p->id, p->desc);
 525                         }
 526                 } else {
 527                         printf("None.\n");
 528                 }
 529                 printf("Optional probes:\n");
 530                 if (dec->opt_probes) {
 531                         for (l = dec->opt_probes; l; l = l->next) {
 532                                 p = l->data;
 533                                 printf("- %s (%s): %s\n",
 534                                        p->name, p->id, p->desc);
 535                         }
 536                 } else {
 537                         printf("None.\n");
 538                 }
 539                 if ((doc = srd_decoder_doc_get(dec))) {
 540                         printf("Documentation:\n%s\n",
 541                                doc[0] == '\n' ? doc + 1 : doc);
 542                         g_free(doc);
 543                 }
 544         }
 545
 546         g_strfreev(pdtokens);
 547 }
 548
 549 static GArray *get_enabled_logic_probes(const struct sr_dev_inst *sdi)
 550 {
 551         struct sr_probe *probe;
 552         GArray *probes;
 553         GSList *l;
 554
 555         probes = g_array_new(FALSE, FALSE, sizeof(int));
 556         for (l = sdi->probes; l; l = l->next) {
 557                 probe = l->data;
 558                 if (probe->type != SR_PROBE_LOGIC)
 559                         continue;
 560                 if (probe->enabled != TRUE)
 561                         continue;
 562                 g_array_append_val(probes, probe->index);
 563         }
 564
 565         return probes;
 566 }
 567
 568 static void datafeed_in(const struct sr_dev_inst *sdi,
 569                 const struct sr_datafeed_packet *packet)
 570 {
 571         const struct sr_datafeed_meta *meta;
 572         const struct sr_datafeed_logic *logic;
 573         const struct sr_datafeed_analog *analog;
 574         struct sr_config *src;
 575         static struct sr_output *o = NULL;
 576         static GArray *logic_probelist = NULL;
 577         static uint64_t received_samples = 0;
 578         static int unitsize = 0;
 579         static int triggered = 0;
 580         static FILE *outfile = NULL;
 581         int sample_size, ret;
 582         uint64_t *samplerate, output_len, filter_out_len;
 583         uint8_t *output_buf, *filter_out;
 584         GString *out;
 585         GSList *l;
 586
 587         /* If the first packet to come in isn't a header, don't even try. */
 588         if (packet->type != SR_DF_HEADER && o == NULL)
 589                 return;
 590
 591         sample_size = -1;
 592         switch (packet->type) {
 593         case SR_DF_HEADER:
 594                 g_debug("cli: Received SR_DF_HEADER");
 595                 /* Initialize the output module. */
 596                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 597                         g_critical("Output module malloc failed.");
 598                         exit(1);
 599                 }
 600                 o->format = output_format;
 601                 o->sdi = (struct sr_dev_inst *)sdi;
 602                 o->param = output_format_param;
 603                 if (o->format->init) {
 604                         if (o->format->init(o) != SR_OK) {
 605                                 g_critical("Output format initialization failed.");
 606                                 exit(1);
 607                         }
 608                 }
 609
 610                 /* Prepare non-stdout output. */
 611                 outfile = stdout;
 612                 if (opt_output_file) {
 613                         if (default_output_format) {
 614                                 /* output file is in session format, so we'll
 615                                  * keep a copy of everything as it comes in
 616                                  * and save from there after the session. */
 617                                 outfile = NULL;
 618                                 savebuf = g_byte_array_new();
 619                         } else {
 620                                 /* saving to a file in whatever format was set
 621                                  * with --format, so all we need is a filehandle */
 622                                 outfile = g_fopen(opt_output_file, "wb");
 623                         }
 624                 }
 625
 626                 /* Prepare for logic data. */
 627                 logic_probelist = get_enabled_logic_probes(sdi);
 628                 /* How many bytes we need to store the packed samples. */
 629                 unitsize = (logic_probelist->len + 7) / 8;
 630
 631                 if (opt_pds && logic_probelist->len) {
 632                         if (sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
 633                                         (const void **)&samplerate, sdi) != SR_OK) {
 634                                 g_critical("Unable to initialize protocol "
 635                                                 "decoders: no samplerate found.");
 636                                 break;
 637                         }
 638                         srd_session_start(logic_probelist->len, unitsize,
 639                                         *samplerate);
 640                 }
 641                 break;
 642
 643         case SR_DF_META:
 644                 g_debug("cli: received SR_DF_META");
 645                 meta = packet->payload;
 646                 for (l = meta->config; l; l = l->next) {
 647                         src = l->data;
 648                         switch (src->key) {
 649                         case SR_CONF_SAMPLERATE:
 650                                 samplerate = (uint64_t *)src->value;
 651                                 g_debug("cli: got samplerate %"PRIu64, *samplerate);
 652                                 break;
 653                         default:
 654                                 /* Unknown metadata is not an error. */
 655                                 break;
 656                         }
 657                 }
 658                 break;
 659
 660         case SR_DF_TRIGGER:
 661                 g_debug("cli: received SR_DF_TRIGGER");
 662                 if (o->format->event)
 663                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 664                                          &output_len);
 665                 triggered = 1;
 666                 break;
 667
 668         case SR_DF_LOGIC:
 669                 logic = packet->payload;
 670                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 671                 sample_size = logic->unitsize;
 672                 if (logic->length == 0)
 673                         break;
 674
 675                 /* Don't store any samples until triggered. */
 676                 if (opt_wait_trigger && !triggered)
 677                         break;
 678
 679                 if (limit_samples && received_samples >= limit_samples)
 680                         break;
 681
 682                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
 683                                 logic->data, logic->length,
 684                                 &filter_out, &filter_out_len);
 685                 if (ret != SR_OK)
 686                         break;
 687
 688                 /* What comes out of the filter is guaranteed to be packed into the
 689                  * minimum size needed to support the number of samples at this sample
 690                  * size. however, the driver may have submitted too much -- cut off
 691                  * the buffer of the last packet according to the sample limit.
 692                  */
 693                 if (limit_samples && (received_samples + logic->length / sample_size >
 694                                 limit_samples * sample_size))
 695                         filter_out_len = limit_samples * sample_size - received_samples;
 696
 697                 if (opt_output_file && default_output_format) {
 698                         /* Saving to a session file. */
 699                         g_byte_array_append(savebuf, filter_out, filter_out_len);
 700                 } else {
 701                         if (opt_pds) {
 702                                 if (srd_session_send(received_samples, (uint8_t*)filter_out,
 703                                                 filter_out_len) != SRD_OK)
 704                                         sr_session_stop();
 705                         } else {
 706                                 output_len = 0;
 707                                 if (o->format->data && packet->type == o->format->df_type)
 708                                         o->format->data(o, filter_out, filter_out_len,
 709                                                         &output_buf, &output_len);
 710                                 if (output_len) {
 711                                         fwrite(output_buf, 1, output_len, outfile);
 712                                         fflush(outfile);
 713                                         g_free(output_buf);
 714                                 }
 715                         }
 716                 }
 717                 g_free(filter_out);
 718
 719                 received_samples += logic->length / sample_size;
 720                 break;
 721
 722         case SR_DF_ANALOG:
 723                 analog = packet->payload;
 724                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
 725                 if (analog->num_samples == 0)
 726                         break;
 727
 728                 if (limit_samples && received_samples >= limit_samples)
 729                         break;
 730
 731                 if (o->format->data && packet->type == o->format->df_type) {
 732                         o->format->data(o, (const uint8_t *)analog->data,
 733                                         analog->num_samples * sizeof(float),
 734                                         &output_buf, &output_len);
 735                         if (output_buf) {
 736                                 fwrite(output_buf, 1, output_len, outfile);
 737                                 fflush(outfile);
 738                                 g_free(output_buf);
 739                         }
 740                 }
 741
 742                 received_samples += analog->num_samples;
 743                 break;
 744
 745         case SR_DF_FRAME_BEGIN:
 746                 g_debug("cli: received SR_DF_FRAME_BEGIN");
 747                 if (o->format->event) {
 748                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
 749                                          &output_len);
 750                         if (output_buf) {
 751                                 fwrite(output_buf, 1, output_len, outfile);
 752                                 fflush(outfile);
 753                                 g_free(output_buf);
 754                         }
 755                 }
 756                 break;
 757
 758         case SR_DF_FRAME_END:
 759                 g_debug("cli: received SR_DF_FRAME_END");
 760                 if (o->format->event) {
 761                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
 762                                          &output_len);
 763                         if (output_buf) {
 764                                 fwrite(output_buf, 1, output_len, outfile);
 765                                 fflush(outfile);
 766                                 g_free(output_buf);
 767                         }
 768                 }
 769                 break;
 770
 771         default:
 772                 break;
 773         }
 774
 775         if (o && o->format->recv) {
 776                 out = o->format->recv(o, sdi, packet);
 777                 if (out && out->len) {
 778                         fwrite(out->str, 1, out->len, outfile);
 779                         fflush(outfile);
 780                 }
 781         }
 782
 783         /* SR_DF_END needs to be handled after the output module's recv()
 784          * is called, so it can properly clean up that module etc. */
 785         if (packet->type == SR_DF_END) {
 786                 g_debug("cli: Received SR_DF_END");
 787
 788                 if (o->format->event) {
 789                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 790                         if (output_buf) {
 791                                 if (outfile)
 792                                         fwrite(output_buf, 1, output_len, outfile);
 793                                 g_free(output_buf);
 794                                 output_len = 0;
 795                         }
 796                 }
 797
 798                 if (limit_samples && received_samples < limit_samples)
 799                         g_warning("Device only sent %" PRIu64 " samples.",
 800                                received_samples);
 801
 802                 if (opt_continuous)
 803                         g_warning("Device stopped after %" PRIu64 " samples.",
 804                                received_samples);
 805
 806                 g_array_free(logic_probelist, TRUE);
 807
 808                 if (o->format->cleanup)
 809                         o->format->cleanup(o);
 810                 g_free(o);
 811                 o = NULL;
 812
 813                 if (outfile && outfile != stdout)
 814                         fclose(outfile);
 815
 816                 if (opt_output_file && default_output_format) {
 817                         if (sr_session_save(opt_output_file, sdi, savebuf->data,
 818                                         unitsize, savebuf->len / unitsize) != SR_OK)
 819                                 g_critical("Failed to save session.");
 820                         g_byte_array_free(savebuf, FALSE);
 821                 }
 822         }
 823
 824 }
 825
 826 /* Register the given PDs for this session.
 827  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 828  * That will instantiate two SPI decoders on the clock but different data
 829  * lines.
 830  */
 831 static int register_pds(struct sr_dev *dev, const char *pdstring)
 832 {
 833         GHashTable *pd_opthash;
 834         struct srd_decoder_inst *di;
 835         int ret;
 836         char **pdtokens, **pdtok, *pd_name;
 837
 838         (void)dev;
 839
 840         ret = 0;
 841         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
 842                         g_free, NULL);
 843         pd_name = NULL;
 844         pd_opthash = NULL;
 845         pdtokens = g_strsplit(pdstring, ",", 0);
 846         for (pdtok = pdtokens; *pdtok; pdtok++) {
 847                 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
 848                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
 849                         goto err_out;
 850                 }
 851
 852                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 853                 g_hash_table_remove(pd_opthash, "sigrok_key");
 854                 if (srd_decoder_load(pd_name) != SRD_OK) {
 855                         g_critical("Failed to load protocol decoder %s.", pd_name);
 856                         ret = 1;
 857                         goto err_out;
 858                 }
 859                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 860                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
 861                         ret = 1;
 862                         goto err_out;
 863                 }
 864
 865                 /* If no annotation list was specified, add them all in now.
 866                  * This will be pared down later to leave only the last PD
 867                  * in the stack.
 868                  */
 869                 if (!opt_pd_annotations)
 870                         g_hash_table_insert(pd_ann_visible,
 871                                             g_strdup(di->inst_id), NULL);
 872
 873                 /* Any keys left in the options hash are probes, where the key
 874                  * is the probe name as specified in the decoder class, and the
 875                  * value is the probe number i.e. the order in which the PD's
 876                  * incoming samples are arranged. */
 877                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
 878                         ret = 1;
 879                         goto err_out;
 880                 }
 881                 g_hash_table_destroy(pd_opthash);
 882                 pd_opthash = NULL;
 883         }
 884
 885 err_out:
 886         g_strfreev(pdtokens);
 887         if (pd_opthash)
 888                 g_hash_table_destroy(pd_opthash);
 889         if (pd_name)
 890                 g_free(pd_name);
 891
 892         return ret;
 893 }
 894
 895 int setup_pd_stack(void)
 896 {
 897         struct srd_decoder_inst *di_from, *di_to;
 898         int ret, i;
 899         char **pds, **ids;
 900
 901         /* Set up the protocol decoder stack. */
 902         pds = g_strsplit(opt_pds, ",", 0);
 903         if (g_strv_length(pds) > 1) {
 904                 if (opt_pd_stack) {
 905                         /* A stack setup was specified, use that. */
 906                         g_strfreev(pds);
 907                         pds = g_strsplit(opt_pd_stack, ",", 0);
 908                         if (g_strv_length(pds) < 2) {
 909                                 g_strfreev(pds);
 910                                 g_critical("Specify at least two protocol decoders to stack.");
 911                                 return 1;
 912                         }
 913                 }
 914
 915                 /* First PD goes at the bottom of the stack. */
 916                 ids = g_strsplit(pds[0], ":", 0);
 917                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
 918                         g_strfreev(ids);
 919                         g_critical("Cannot stack protocol decoder '%s': "
 920                                         "instance not found.", pds[0]);
 921                         return 1;
 922                 }
 923                 g_strfreev(ids);
 924
 925                 /* Every subsequent PD goes on top. */
 926                 for (i = 1; pds[i]; i++) {
 927                         ids = g_strsplit(pds[i], ":", 0);
 928                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
 929                                 g_strfreev(ids);
 930                                 g_critical("Cannot stack protocol decoder '%s': "
 931                                                 "instance not found.", pds[i]);
 932                                 return 1;
 933                         }
 934                         g_strfreev(ids);
 935                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
 936                                 return 1;
 937
 938                         /* Don't show annotation from this PD. Only the last PD in
 939                          * the stack will be left on the annotation list (unless
 940                          * the annotation list was specifically provided).
 941                          */
 942                         if (!opt_pd_annotations)
 943                                 g_hash_table_remove(pd_ann_visible,
 944                                                     di_from->inst_id);
 945
 946                         di_from = di_to;
 947                 }
 948         }
 949         g_strfreev(pds);
 950
 951         return 0;
 952 }
 953
 954 int setup_pd_annotations(void)
 955 {
 956         GSList *l;
 957         struct srd_decoder *dec;
 958         int ann;
 959         char **pds, **pdtok, **keyval, **ann_descr;
 960
 961         /* Set up custom list of PDs and annotations to show. */
 962         if (opt_pd_annotations) {
 963                 pds = g_strsplit(opt_pd_annotations, ",", 0);
 964                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
 965                         ann = 0;
 966                         keyval = g_strsplit(*pdtok, "=", 0);
 967                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
 968                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
 969                                 return 1;
 970                         }
 971                         if (!dec->annotations) {
 972                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
 973                                 return 1;
 974                         }
 975                         if (g_strv_length(keyval) == 2) {
 976                                 for (l = dec->annotations; l; l = l->next, ann++) {
 977                                         ann_descr = l->data;
 978                                         if (!canon_cmp(ann_descr[0], keyval[1]))
 979                                                 /* Found it. */
 980                                                 break;
 981                                 }
 982                                 if (!l) {
 983                                         g_critical("Annotation '%s' not found "
 984                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
 985                                         return 1;
 986                                 }
 987                         }
 988                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
 989                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
 990                         g_strfreev(keyval);
 991                 }
 992                 g_strfreev(pds);
 993         }
 994
 995         return 0;
 996 }
 997
 998 int setup_output_format(void)
 999 {
1000         GHashTable *fmtargs;
1001         GHashTableIter iter;
1002         gpointer key, value;
1003         struct sr_output_format **outputs;
1004         int i;
1005         char *fmtspec;
1006
1007         if (!opt_output_format) {
1008                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
1009                 /* we'll need to remember this so when saving to a file
1010                  * later, sigrok session format will be used.
1011                  */
1012                 default_output_format = TRUE;
1013         }
1014
1015         fmtargs = parse_generic_arg(opt_output_format, TRUE);
1016         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1017         if (!fmtspec) {
1018                 g_critical("Invalid output format.");
1019                 return 1;
1020         }
1021         outputs = sr_output_list();
1022         for (i = 0; outputs[i]; i++) {
1023                 if (strcmp(outputs[i]->id, fmtspec))
1024                         continue;
1025                 g_hash_table_remove(fmtargs, "sigrok_key");
1026                 output_format = outputs[i];
1027                 g_hash_table_iter_init(&iter, fmtargs);
1028                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1029                         /* only supporting one parameter per output module
1030                          * for now, and only its value */
1031                         output_format_param = g_strdup(value);
1032                         break;
1033                 }
1034                 break;
1035         }
1036         if (!output_format) {
1037                 g_critical("Invalid output format %s.", opt_output_format);
1038                 return 1;
1039         }
1040         g_hash_table_destroy(fmtargs);
1041
1042         return 0;
1043 }
1044
1045 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
1046 {
1047         int i;
1048         char **annotations;
1049         gpointer ann_format;
1050
1051         /* 'cb_data' is not used in this specific callback. */
1052         (void)cb_data;
1053
1054         if (!pd_ann_visible)
1055                 return;
1056
1057         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
1058                         NULL, &ann_format))
1059                 /* Not in the list of PDs whose annotations we're showing. */
1060                 return;
1061
1062         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
1063                 /* We don't want this particular format from the PD. */
1064                 return;
1065
1066         annotations = pdata->data;
1067         if (opt_loglevel > SR_LOG_WARN)
1068                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1069         printf("%s: ", pdata->pdo->proto_id);
1070         for (i = 0; annotations[i]; i++)
1071                 printf("\"%s\" ", annotations[i]);
1072         printf("\n");
1073         fflush(stdout);
1074 }
1075
1076 static int select_probes(struct sr_dev_inst *sdi)
1077 {
1078         struct sr_probe *probe;
1079         GSList *selected_probes, *l;
1080
1081         if (!opt_probes)
1082                 return SR_OK;
1083
1084         if (!(selected_probes = parse_probestring(sdi, opt_probes)))
1085                 return SR_ERR;
1086
1087         for (l = sdi->probes; l; l = l->next) {
1088                 probe = l->data;
1089                 if (g_slist_find(selected_probes, probe))
1090                         probe->enabled = TRUE;
1091                 else
1092                         probe->enabled = FALSE;
1093         }
1094         g_slist_free(selected_probes);
1095
1096         return SR_OK;
1097 }
1098
1099 /**
1100  * Return the input file format which the CLI tool should use.
1101  *
1102  * If the user specified -I / --input-format, use that one. Otherwise, try to
1103  * autodetect the format as good as possible. Failing that, return NULL.
1104  *
1105  * @param filename The filename of the input file. Must not be NULL.
1106  * @param opt The -I / --input-file option the user specified (or NULL).
1107  *
1108  * @return A pointer to the 'struct sr_input_format' that should be used,
1109  *         or NULL if no input format was selected or auto-detected.
1110  */
1111 static struct sr_input_format *determine_input_file_format(
1112                         const char *filename, const char *opt)
1113 {
1114         int i;
1115         struct sr_input_format **inputs;
1116
1117         /* If there are no input formats, return NULL right away. */
1118         inputs = sr_input_list();
1119         if (!inputs) {
1120                 g_critical("No supported input formats available.");
1121                 return NULL;
1122         }
1123
1124         /* If the user specified -I / --input-format, use that one. */
1125         if (opt) {
1126                 for (i = 0; inputs[i]; i++) {
1127                         if (strcasecmp(inputs[i]->id, opt))
1128                                 continue;
1129                         g_debug("Using user-specified input file format '%s'.",
1130                                         inputs[i]->id);
1131                         return inputs[i];
1132                 }
1133
1134                 /* The user specified an unknown input format, return NULL. */
1135                 g_critical("Error: specified input file format '%s' is "
1136                         "unknown.", opt);
1137                 return NULL;
1138         }
1139
1140         /* Otherwise, try to find an input module that can handle this file. */
1141         for (i = 0; inputs[i]; i++) {
1142                 if (inputs[i]->format_match(filename))
1143                         break;
1144         }
1145
1146         /* Return NULL if no input module wanted to touch this. */
1147         if (!inputs[i]) {
1148                 g_critical("Error: no matching input module found.");
1149                 return NULL;
1150         }
1151
1152         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1153                 inputs[i]->id, filename);
1154
1155         return inputs[i];
1156 }
1157
1158 static void load_input_file_format(void)
1159 {
1160         GHashTable *fmtargs = NULL;
1161         struct stat st;
1162         struct sr_input *in;
1163         struct sr_input_format *input_format;
1164         char *fmtspec = NULL;
1165
1166         if (opt_input_format) {
1167                 fmtargs = parse_generic_arg(opt_input_format, TRUE);
1168                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1169         }
1170
1171         if (!(input_format = determine_input_file_format(opt_input_file,
1172                                                    fmtspec))) {
1173                 /* The exact cause was already logged. */
1174                 return;
1175         }
1176
1177         if (fmtargs)
1178                 g_hash_table_remove(fmtargs, "sigrok_key");
1179
1180         if (stat(opt_input_file, &st) == -1) {
1181                 g_critical("Failed to load %s: %s", opt_input_file,
1182                         strerror(errno));
1183                 exit(1);
1184         }
1185
1186         /* Initialize the input module. */
1187         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1188                 g_critical("Failed to allocate input module.");
1189                 exit(1);
1190         }
1191         in->format = input_format;
1192         in->param = fmtargs;
1193         if (in->format->init) {
1194                 if (in->format->init(in, opt_input_file) != SR_OK) {
1195                         g_critical("Input format init failed.");
1196                         exit(1);
1197                 }
1198         }
1199
1200         if (select_probes(in->sdi) > 0)
1201                 return;
1202
1203         sr_session_new();
1204         sr_session_datafeed_callback_add(datafeed_in);
1205         if (sr_session_dev_add(in->sdi) != SR_OK) {
1206                 g_critical("Failed to use device.");
1207                 sr_session_destroy();
1208                 return;
1209         }
1210
1211         input_format->loadfile(in, opt_input_file);
1212
1213         sr_session_destroy();
1214
1215         if (fmtargs)
1216                 g_hash_table_destroy(fmtargs);
1217 }
1218
1219 static void load_input_file(void)
1220 {
1221
1222         if (sr_session_load(opt_input_file) == SR_OK) {
1223                 /* sigrok session file */
1224                 sr_session_datafeed_callback_add(datafeed_in);
1225                 sr_session_start();
1226                 sr_session_run();
1227                 sr_session_stop();
1228         }
1229         else {
1230                 /* fall back on input modules */
1231                 load_input_file_format();
1232         }
1233 }
1234
1235 static int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
1236 {
1237         const struct sr_config_info *srci;
1238         GHashTableIter iter;
1239         gpointer key, value;
1240         int ret;
1241         float tmp_float;
1242         uint64_t tmp_u64;
1243         struct sr_rational tmp_rat;
1244         gboolean tmp_bool;
1245         void *val;
1246
1247         g_hash_table_iter_init(&iter, args);
1248         while (g_hash_table_iter_next(&iter, &key, &value)) {
1249                 if (!(srci = sr_config_info_name_get(key))) {
1250                         g_critical("Unknown device option '%s'.", (char *) key);
1251                         return SR_ERR;
1252                 }
1253
1254                 if ((value == NULL) &&
1255                         (srci->datatype != SR_T_BOOL)) {
1256                         g_critical("Option '%s' needs a value.", (char *)key);
1257                         return SR_ERR;
1258                 }
1259                 val = NULL;
1260                 switch (srci->datatype) {
1261                 case SR_T_UINT64:
1262                         ret = sr_parse_sizestring(value, &tmp_u64);
1263                         if (ret != SR_OK)
1264                                 break;
1265                         val = &tmp_u64;
1266                         break;
1267                 case SR_T_CHAR:
1268                         val = value;
1269                         break;
1270                 case SR_T_BOOL:
1271                         if (!value)
1272                                 tmp_bool = TRUE;
1273                         else
1274                                 tmp_bool = sr_parse_boolstring(value);
1275                         val = &tmp_bool;
1276                         break;
1277                 case SR_T_FLOAT:
1278                         tmp_float = strtof(value, NULL);
1279                         val = &tmp_float;
1280                         break;
1281                 case SR_T_RATIONAL_PERIOD:
1282                         if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1283                                 break;
1284                         val = &tmp_rat;
1285                         break;
1286                 case SR_T_RATIONAL_VOLT:
1287                         if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1288                                 break;
1289                         val = &tmp_rat;
1290                         break;
1291                 default:
1292                         ret = SR_ERR;
1293                 }
1294                 if (val)
1295                         ret = sr_config_set(sdi, srci->key, val);
1296                 if (ret != SR_OK) {
1297                         g_critical("Failed to set device option '%s'.", (char *)key);
1298                         return ret;
1299                 }
1300         }
1301
1302         return SR_OK;
1303 }
1304
1305 static int set_limit_time(const struct sr_dev_inst *sdi)
1306 {
1307         uint64_t time_msec;
1308         uint64_t *samplerate;
1309
1310         time_msec = sr_parse_timestring(opt_time);
1311         if (time_msec == 0) {
1312                 g_critical("Invalid time '%s'", opt_time);
1313                 sr_session_destroy();
1314                 return SR_ERR;
1315         }
1316
1317         if (sr_dev_has_option(sdi, SR_CONF_LIMIT_MSEC)) {
1318                 if (sr_config_set(sdi, SR_CONF_LIMIT_MSEC, &time_msec) != SR_OK) {
1319                         g_critical("Failed to configure time limit.");
1320                         sr_session_destroy();
1321                         return SR_ERR;
1322                 }
1323         }
1324         else {
1325                 /* time limit set, but device doesn't support this...
1326                  * convert to samples based on the samplerate.
1327                  */
1328                 limit_samples = 0;
1329                 if (sr_dev_has_option(sdi, SR_CONF_SAMPLERATE)) {
1330                         sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
1331                                         (const void **)&samplerate, sdi);
1332                         limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1333                 }
1334                 if (limit_samples == 0) {
1335                         g_critical("Not enough time at this samplerate.");
1336                         sr_session_destroy();
1337                         return SR_ERR;
1338                 }
1339
1340                 if (sr_config_set(sdi, SR_CONF_LIMIT_SAMPLES,
1341                                         &limit_samples) != SR_OK) {
1342                         g_critical("Failed to configure time-based sample limit.");
1343                         sr_session_destroy();
1344                         return SR_ERR;
1345                 }
1346         }
1347
1348         return SR_OK;
1349 }
1350
1351 static void run_session(void)
1352 {
1353         GSList *devices;
1354         GHashTable *devargs;
1355         struct sr_dev_inst *sdi;
1356         int max_probes, i;
1357         char **triggerlist;
1358
1359         devices = device_scan();
1360         if (!devices) {
1361                 g_critical("No devices found.");
1362                 return;
1363         }
1364         if (g_slist_length(devices) > 1) {
1365                 g_critical("sigrok-cli only supports one device for capturing.");
1366                 return;
1367         }
1368         sdi = devices->data;
1369
1370         sr_session_new();
1371         sr_session_datafeed_callback_add(datafeed_in);
1372
1373         if (sr_session_dev_add(sdi) != SR_OK) {
1374                 g_critical("Failed to use device.");
1375                 sr_session_destroy();
1376                 return;
1377         }
1378
1379         if (opt_dev) {
1380                 if ((devargs = parse_generic_arg(opt_dev, FALSE))) {
1381                         if (set_dev_options(sdi, devargs) != SR_OK)
1382                                 return;
1383                         g_hash_table_destroy(devargs);
1384                 }
1385         }
1386
1387         if (select_probes(sdi) != SR_OK) {
1388                 g_critical("Failed to set probes.");
1389                 sr_session_destroy();
1390                 return;
1391         }
1392
1393         if (opt_triggers) {
1394                 if (!(triggerlist = sr_parse_triggerstring(sdi, opt_triggers))) {
1395                         sr_session_destroy();
1396                         return;
1397                 }
1398                 max_probes = g_slist_length(sdi->probes);
1399                 for (i = 0; i < max_probes; i++) {
1400                         if (triggerlist[i]) {
1401                                 sr_dev_trigger_set(sdi, i, triggerlist[i]);
1402                                 g_free(triggerlist[i]);
1403                         }
1404                 }
1405                 g_free(triggerlist);
1406         }
1407
1408         if (opt_continuous) {
1409                 if (!sr_dev_has_option(sdi, SR_CONF_CONTINUOUS)) {
1410                         g_critical("This device does not support continuous sampling.");
1411                         sr_session_destroy();
1412                         return;
1413                 }
1414         }
1415
1416         if (opt_time) {
1417                 if (set_limit_time(sdi) != SR_OK) {
1418                         sr_session_destroy();
1419                         return;
1420                 }
1421         }
1422
1423         if (opt_samples) {
1424                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1425                                 || (sr_config_set(sdi, SR_CONF_LIMIT_SAMPLES,
1426                                                 &limit_samples) != SR_OK)) {
1427                         g_critical("Failed to configure sample limit.");
1428                         sr_session_destroy();
1429                         return;
1430                 }
1431         }
1432
1433         if (opt_frames) {
1434                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1435                                 || (sr_config_set(sdi, SR_CONF_LIMIT_FRAMES,
1436                                                 &limit_frames) != SR_OK)) {
1437                         g_critical("Failed to configure frame limit.");
1438                         sr_session_destroy();
1439                         return;
1440                 }
1441         }
1442
1443         if (sr_session_start() != SR_OK) {
1444                 g_critical("Failed to start session.");
1445                 sr_session_destroy();
1446                 return;
1447         }
1448
1449         if (opt_continuous)
1450                 add_anykey();
1451
1452         sr_session_run();
1453
1454         if (opt_continuous)
1455                 clear_anykey();
1456
1457         sr_session_destroy();
1458         g_slist_free(devices);
1459
1460 }
1461
1462 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1463                    const gchar *message, gpointer cb_data)
1464 {
1465         (void)log_domain;
1466         (void)cb_data;
1467
1468         /*
1469          * All messages, warnings, errors etc. go to stderr (not stdout) in
1470          * order to not mess up the CLI tool data output, e.g. VCD output.
1471          */
1472         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1473                         || opt_loglevel > SR_LOG_WARN) {
1474                 fprintf(stderr, "%s\n", message);
1475                 fflush(stderr);
1476         }
1477 }
1478
1479 int main(int argc, char **argv)
1480 {
1481         int ret = 1;
1482         GOptionContext *context;
1483         GError *error;
1484
1485         g_log_set_default_handler(logger, NULL);
1486
1487         error = NULL;
1488         context = g_option_context_new(NULL);
1489         g_option_context_add_main_entries(context, optargs, NULL);
1490
1491         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1492                 g_critical("%s", error->message);
1493                 goto done;
1494         }
1495
1496         /* Set the loglevel (amount of messages to output) for libsigrok. */
1497         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1498                 goto done;
1499
1500         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1501         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1502                 goto done;
1503
1504         if (sr_init(&sr_ctx) != SR_OK)
1505                 goto done;
1506
1507         if (opt_pds) {
1508                 if (srd_init(NULL) != SRD_OK)
1509                         goto done;
1510                 if (register_pds(NULL, opt_pds) != 0)
1511                         goto done;
1512                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1513                                 show_pd_annotations, NULL) != SRD_OK)
1514                         goto done;
1515                 if (setup_pd_stack() != 0)
1516                         goto done;
1517                 if (setup_pd_annotations() != 0)
1518                         goto done;
1519         }
1520
1521         if (setup_output_format() != 0)
1522                 goto done;
1523
1524         if (opt_version)
1525                 show_version();
1526         else if (opt_list_devs)
1527                 show_dev_list();
1528         else if (opt_pds && opt_show)
1529                 show_pd_detail();
1530         else if (opt_show)
1531                 show_dev_detail();
1532         else if (opt_input_file)
1533                 load_input_file();
1534         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1535                 run_session();
1536         else
1537                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1538
1539         if (opt_pds)
1540                 srd_exit();
1541
1542         ret = 0;
1543
1544 done:
1545         if (sr_ctx)
1546                 sr_exit(sr_ctx);
1547
1548         g_option_context_free(context);
1549
1550         return ret;
1551 }