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 <sigrok.h>
  34 #include "sigrok-cli.h"
  35 #include "config.h"
  36
  37 #define DEFAULT_OUTPUT_FORMAT "bits:width=64"
  38
  39 extern struct sr_hwcap_option sr_hwcap_options[];
  40
  41 static gboolean debug = 0;
  42 static uint64_t limit_samples = 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 char *input_format_param = NULL;
  47 static GData *pd_ann_visible = 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_dev = NULL;
  56 static gchar *opt_probes = NULL;
  57 static gchar *opt_triggers = NULL;
  58 static gchar *opt_pds = NULL;
  59 static gchar *opt_pd_stack = NULL;
  60 static gchar *opt_input_format = NULL;
  61 static gchar *opt_output_format = NULL;
  62 static gchar *opt_time = NULL;
  63 static gchar *opt_samples = NULL;
  64 static gchar *opt_continuous = NULL;
  65
  66 static GOptionEntry optargs[] = {
  67         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version, "Show version and support list", NULL},
  68         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel, "Select libsigrok loglevel", NULL},
  69         {"list-devices", 'D', 0, G_OPTION_ARG_NONE, &opt_list_devs, "List devices", NULL},
  70         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file, "Load input from file", NULL},
  71         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format, "Input format", NULL},
  72         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file, "Save output to file", NULL},
  73         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format, "Output format", NULL},
  74         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev, "Use device ID", NULL},
  75         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes, "Probes to use", NULL},
  76         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers, "Trigger configuration", NULL},
  77         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger, "Wait for trigger", NULL},
  78         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds, "Protocol decoder sequence", NULL},
  79         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack, "Protocol decoder stack", NULL},
  80         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time, "How long to sample (ms)", NULL},
  81         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples, "Number of samples to acquire", NULL},
  82         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous, "Sample continuously", NULL},
  83         {NULL, 0, 0, 0, NULL, NULL, NULL}
  84 };
  85
  86 static void show_version(void)
  87 {
  88         GSList *l;
  89         struct sr_dev_driver **drivers;
  90         struct sr_input_format **inputs;
  91         struct sr_output_format **outputs;
  92         struct srd_decoder *dec;
  93         int i;
  94
  95         printf("sigrok-cli %s\n\n", VERSION);
  96
  97         printf("Supported hardware drivers:\n");
  98         drivers = sr_driver_list();
  99         for (i = 0; drivers[i]; i++) {
 100                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
 101         }
 102         printf("\n");
 103
 104         printf("Supported input formats:\n");
 105         inputs = sr_input_list();
 106         for (i = 0; inputs[i]; i++)
 107                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
 108         printf("\n");
 109
 110         printf("Supported output formats:\n");
 111         outputs = sr_output_list();
 112         for (i = 0; outputs[i]; i++)
 113                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
 114         printf("\n");
 115
 116         if (srd_init(NULL) == SRD_OK) {
 117                 printf("Supported protocol decoders:\n");
 118                 srd_decoder_load_all();
 119                 for (l = srd_decoder_list(); l; l = l->next) {
 120                         dec = l->data;
 121                         printf("  %-20s %s\n", dec->id, dec->longname);
 122                 }
 123                 srd_exit();
 124         }
 125         printf("\n");
 126
 127 }
 128
 129 static void print_dev_line(const struct sr_dev *dev)
 130 {
 131         const struct sr_dev_inst *sdi;
 132
 133         sr_dev_info_get(dev, SR_DI_INST, (const void **)&sdi);
 134
 135         if (sdi->vendor && sdi->vendor[0])
 136                 printf("%s ", sdi->vendor);
 137         if (sdi->model && sdi->model[0])
 138                 printf("%s ", sdi->model);
 139         if (sdi->version && sdi->version[0])
 140                 printf("%s ", sdi->version);
 141         if (dev->probes)
 142                 printf("with %d probes", g_slist_length(dev->probes));
 143         printf("\n");
 144 }
 145
 146 static void show_dev_list(void)
 147 {
 148         struct sr_dev *dev, *demo_dev;
 149         GSList *devs, *l;
 150         int devcnt;
 151
 152         devcnt = 0;
 153         devs = sr_dev_list();
 154
 155         if (g_slist_length(devs) == 0)
 156                 return;
 157
 158         printf("The following devices were found:\nID    Device\n");
 159         demo_dev = NULL;
 160         for (l = devs; l; l = l->next) {
 161                 dev = l->data;
 162                 if (sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV)) {
 163                         demo_dev = dev;
 164                         continue;
 165                 }
 166                 printf("%-3d   ", devcnt++);
 167                 print_dev_line(dev);
 168         }
 169         if (demo_dev) {
 170                 printf("demo  ");
 171                 print_dev_line(demo_dev);
 172         }
 173 }
 174
 175 static void show_dev_detail(void)
 176 {
 177         struct sr_dev *dev;
 178         struct sr_hwcap_option *hwo;
 179         const struct sr_samplerates *samplerates;
 180         int cap, *hwcaps, i;
 181         char *s, *title;
 182         const char *charopts, **stropts;
 183
 184         dev = parse_devstring(opt_dev);
 185         if (!dev) {
 186                 printf("No such device. Use -D to list all devices.\n");
 187                 return;
 188         }
 189
 190         print_dev_line(dev);
 191
 192         if (sr_dev_info_get(dev, SR_DI_TRIGGER_TYPES,
 193                                         (const void **)&charopts) == SR_OK) {
 194                 printf("Supported triggers: ");
 195                 while (*charopts) {
 196                         printf("%c ", *charopts);
 197                         charopts++;
 198                 }
 199                 printf("\n");
 200         }
 201
 202         title = "Supported options:\n";
 203         hwcaps = dev->driver->hwcap_get_all();
 204         for (cap = 0; hwcaps[cap]; cap++) {
 205                 if (!(hwo = sr_hw_hwcap_get(hwcaps[cap])))
 206                         continue;
 207
 208                 if (title) {
 209                         printf("%s", title);
 210                         title = NULL;
 211                 }
 212
 213                 if (hwo->hwcap == SR_HWCAP_PATTERN_MODE) {
 214                         printf("    %s", hwo->shortname);
 215                         if (sr_dev_info_get(dev, SR_DI_PATTERNMODES,
 216                                         (const void **)&stropts) == SR_OK) {
 217                                 printf(" - supported modes:\n");
 218                                 for (i = 0; stropts[i]; i++)
 219                                         printf("      %s\n", stropts[i]);
 220                         } else {
 221                                 printf("\n");
 222                         }
 223                 } else if (hwo->hwcap == SR_HWCAP_SAMPLERATE) {
 224                         printf("    %s", hwo->shortname);
 225                         /* Supported samplerates */
 226                         if (sr_dev_info_get(dev, SR_DI_SAMPLERATES,
 227                                         (const void **)&samplerates) != SR_OK) {
 228                                 printf("\n");
 229                                 continue;
 230                         }
 231
 232                         if (samplerates->step) {
 233                                 /* low */
 234                                 if (!(s = sr_samplerate_string(samplerates->low)))
 235                                         continue;
 236                                 printf(" (%s", s);
 237                                 g_free(s);
 238                                 /* high */
 239                                 if (!(s = sr_samplerate_string(samplerates->high)))
 240                                         continue;
 241                                 printf(" - %s", s);
 242                                 g_free(s);
 243                                 /* step */
 244                                 if (!(s = sr_samplerate_string(samplerates->step)))
 245                                         continue;
 246                                 printf(" in steps of %s)\n", s);
 247                                 g_free(s);
 248                         } else {
 249                                 printf(" - supported samplerates:\n");
 250                                 for (i = 0; samplerates->list[i]; i++) {
 251                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
 252                                 }
 253                         }
 254                 } else {
 255                         printf("    %s\n", hwo->shortname);
 256                 }
 257         }
 258 }
 259
 260 static void show_pd_detail(void)
 261 {
 262         GSList *l;
 263         struct srd_decoder *dec;
 264         char **pdtokens, **pdtok, **ann, *doc;
 265
 266         pdtokens = g_strsplit(opt_pds, ",", -1);
 267         for (pdtok = pdtokens; *pdtok; pdtok++) {
 268                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
 269                         printf("Protocol decoder %s not found.", *pdtok);
 270                         return;
 271                 }
 272                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 273                                 dec->id, dec->name, dec->longname, dec->desc);
 274                 printf("License: %s\n", dec->license);
 275                 if (dec->annotations) {
 276                         printf("Annotations:\n");
 277                         for (l = dec->annotations; l; l = l->next) {
 278                                 ann = l->data;
 279                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 280                         }
 281                 }
 282                 if ((doc = srd_decoder_doc(dec))) {
 283                         printf("Documentation:\n%s\n", doc[0] == '\n' ? doc+1 : doc);
 284                         g_free(doc);
 285                 }
 286         }
 287
 288         g_strfreev(pdtokens);
 289
 290 }
 291
 292 static void datafeed_in(struct sr_dev *dev, struct sr_datafeed_packet *packet)
 293 {
 294         static struct sr_output *o = NULL;
 295         static int probelist[SR_MAX_NUM_PROBES] = { 0 };
 296         static uint64_t received_samples = 0;
 297         static int unitsize = 0;
 298         static int triggered = 0;
 299         static FILE *outfile = NULL;
 300         struct sr_probe *probe;
 301         struct sr_datafeed_header *header;
 302         struct sr_datafeed_logic *logic;
 303         int num_enabled_probes, sample_size, ret, i;
 304         uint64_t output_len, filter_out_len;
 305         char *output_buf, *filter_out;
 306
 307         /* If the first packet to come in isn't a header, don't even try. */
 308         if (packet->type != SR_DF_HEADER && o == NULL)
 309                 return;
 310
 311         sample_size = -1;
 312         switch (packet->type) {
 313         case SR_DF_HEADER:
 314                 g_message("cli: Received SR_DF_HEADER");
 315                 /* Initialize the output module. */
 316                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
 317                         printf("Output module malloc failed.\n");
 318                         exit(1);
 319                 }
 320                 o->format = output_format;
 321                 o->dev = dev;
 322                 o->param = output_format_param;
 323                 if (o->format->init) {
 324                         if (o->format->init(o) != SR_OK) {
 325                                 printf("Output format initialization failed.\n");
 326                                 exit(1);
 327                         }
 328                 }
 329
 330                 header = packet->payload;
 331                 num_enabled_probes = 0;
 332                 for (i = 0; i < header->num_logic_probes; i++) {
 333                         probe = g_slist_nth_data(dev->probes, i);
 334                         if (probe->enabled)
 335                                 probelist[num_enabled_probes++] = probe->index;
 336                 }
 337                 /* How many bytes we need to store num_enabled_probes bits */
 338                 unitsize = (num_enabled_probes + 7) / 8;
 339
 340                 outfile = stdout;
 341                 if (opt_output_file) {
 342                         if (default_output_format) {
 343                                 /* output file is in session format, which means we'll
 344                                  * dump everything in the datastore as it comes in,
 345                                  * and save from there after the session. */
 346                                 outfile = NULL;
 347                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
 348                                 if (ret != SR_OK) {
 349                                         printf("Failed to create datastore.\n");
 350                                         exit(1);
 351                                 }
 352                         } else {
 353                                 /* saving to a file in whatever format was set
 354                                  * with -O, so all we need is a filehandle */
 355                                 outfile = g_fopen(opt_output_file, "wb");
 356                         }
 357                 }
 358                 if (opt_pds)
 359                         srd_session_start(num_enabled_probes, unitsize,
 360                                         header->samplerate);
 361                 break;
 362         case SR_DF_END:
 363                 g_message("cli: Received SR_DF_END");
 364                 if (!o) {
 365                         g_message("cli: double end!");
 366                         break;
 367                 }
 368                 if (o->format->event) {
 369                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 370                         if (output_len) {
 371                                 if (outfile)
 372                                         fwrite(output_buf, 1, output_len, outfile);
 373                                 g_free(output_buf);
 374                                 output_len = 0;
 375                         }
 376                 }
 377                 if (limit_samples && received_samples < limit_samples)
 378                         printf("Device only sent %" PRIu64 " samples.\n",
 379                                received_samples);
 380                 if (opt_continuous)
 381                         printf("Device stopped after %" PRIu64 " samples.\n",
 382                                received_samples);
 383                 sr_session_halt();
 384                 if (outfile && outfile != stdout)
 385                         fclose(outfile);
 386                 g_free(o);
 387                 o = NULL;
 388                 break;
 389         case SR_DF_TRIGGER:
 390                 g_message("cli: received SR_DF_TRIGGER");
 391                 if (o->format->event)
 392                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 393                                          &output_len);
 394                 triggered = 1;
 395                 break;
 396         case SR_DF_LOGIC:
 397                 logic = packet->payload;
 398                 sample_size = logic->unitsize;
 399                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
 400                 break;
 401         }
 402
 403         /* not supporting anything but SR_DF_LOGIC for now */
 404
 405         if (sample_size == -1 || logic->length == 0)
 406                 return;
 407
 408         /* Don't store any samples until triggered. */
 409         if (opt_wait_trigger && !triggered)
 410                 return;
 411
 412         if (limit_samples && received_samples >= limit_samples)
 413                 return;
 414
 415         /* TODO: filters only support SR_DF_LOGIC */
 416         ret = sr_filter_probes(sample_size, unitsize, probelist,
 417                                    logic->data, logic->length,
 418                                    &filter_out, &filter_out_len);
 419         if (ret != SR_OK)
 420                 return;
 421
 422         /* what comes out of the filter is guaranteed to be packed into the
 423          * minimum size needed to support the number of samples at this sample
 424          * size. however, the driver may have submitted too much -- cut off
 425          * the buffer of the last packet according to the sample limit.
 426          */
 427         if (limit_samples && (received_samples + logic->length / sample_size >
 428                         limit_samples * sample_size))
 429                 filter_out_len = limit_samples * sample_size - received_samples;
 430
 431         if (dev->datastore)
 432                 sr_datastore_put(dev->datastore, filter_out,
 433                                  filter_out_len, sample_size, probelist);
 434
 435         if (opt_output_file && default_output_format)
 436                 /* saving to a session file, don't need to do anything else
 437                  * to this data for now. */
 438                 goto cleanup;
 439
 440         if (opt_pds) {
 441                 if (srd_session_feed(received_samples, (uint8_t*)filter_out,
 442                                 filter_out_len) != SRD_OK)
 443                         sr_session_halt();
 444         } else {
 445                 output_len = 0;
 446                 if (o->format->data && packet->type == o->format->df_type)
 447                         o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 448                 if (output_len) {
 449                         fwrite(output_buf, 1, output_len, outfile);
 450                         g_free(output_buf);
 451                 }
 452         }
 453
 454 cleanup:
 455         g_free(filter_out);
 456         received_samples += logic->length / sample_size;
 457
 458 }
 459
 460 /* Register the given PDs for this session.
 461  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 462  * That will instantiate two SPI decoders on the clock but different data
 463  * lines.
 464  */
 465 static int register_pds(struct sr_dev *dev, const char *pdstring)
 466 {
 467         GHashTable *pd_opthash;
 468         struct srd_decoder_inst *di;
 469         char **pdtokens, **pdtok, *pd_name;
 470
 471         /* Avoid compiler warnings. */
 472         (void)dev;
 473
 474         g_datalist_init(&pd_ann_visible);
 475         pdtokens = g_strsplit(pdstring, ",", -1);
 476         pd_opthash = NULL;
 477         pd_name = NULL;
 478
 479         for (pdtok = pdtokens; *pdtok; pdtok++) {
 480                 if (!(pd_opthash = parse_generic_arg(*pdtok))) {
 481                         fprintf(stderr, "Invalid protocol decoder option '%s'.\n", *pdtok);
 482                         goto err_out;
 483                 }
 484
 485                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 486                 g_hash_table_remove(pd_opthash, "sigrok_key");
 487                 if (srd_decoder_load(pd_name) != SRD_OK) {
 488                         fprintf(stderr, "Failed to load protocol decoder %s\n", pd_name);
 489                         goto err_out;
 490                 }
 491                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
 492                         fprintf(stderr, "Failed to instantiate protocol decoder %s\n", pd_name);
 493                         goto err_out;
 494                 }
 495                 g_datalist_set_data(&pd_ann_visible, di->inst_id, pd_name);
 496
 497                 /* Any keys left in the options hash are probes, where the key
 498                  * is the probe name as specified in the decoder class, and the
 499                  * value is the probe number i.e. the order in which the PD's
 500                  * incoming samples are arranged. */
 501                 if (srd_inst_probes_set(di, pd_opthash) != SRD_OK)
 502                         goto err_out;
 503                 g_hash_table_destroy(pd_opthash);
 504                 pd_opthash = NULL;
 505         }
 506
 507 err_out:
 508         g_strfreev(pdtokens);
 509         if (pd_opthash)
 510                 g_hash_table_destroy(pd_opthash);
 511         if (pd_name)
 512                 g_free(pd_name);
 513
 514         return 0;
 515 }
 516
 517 void show_pd_annotation(struct srd_proto_data *pdata, void *cb_data)
 518 {
 519         int i;
 520         char **annotations;
 521
 522         /* 'cb_data' is not used in this specific callback. */
 523         (void)cb_data;
 524
 525         if (pdata->ann_format != 0) {
 526                 /* CLI only shows the default annotation format. */
 527                 return;
 528         }
 529
 530         if (!g_datalist_get_data(&pd_ann_visible, pdata->pdo->di->inst_id)) {
 531                 /* Not in the list of PDs whose annotations we're showing. */
 532                 return;
 533         }
 534
 535         annotations = pdata->data;
 536         if (opt_loglevel > SR_LOG_WARN)
 537                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
 538         printf("%s: ", pdata->pdo->proto_id);
 539         for (i = 0; annotations[i]; i++)
 540                 printf("\"%s\" ", annotations[i]);
 541         printf("\n");
 542
 543 }
 544
 545 static int select_probes(struct sr_dev *dev)
 546 {
 547         struct sr_probe *probe;
 548         char **probelist;
 549         int max_probes, i;
 550
 551         if (!opt_probes)
 552                 return SR_OK;
 553
 554         /*
 555          * This only works because a device by default initializes
 556          * and enables all its probes.
 557          */
 558         max_probes = g_slist_length(dev->probes);
 559         probelist = parse_probestring(max_probes, opt_probes);
 560         if (!probelist) {
 561                 return SR_ERR;
 562         }
 563
 564         for (i = 0; i < max_probes; i++) {
 565                 if (probelist[i]) {
 566                         sr_dev_probe_name_set(dev, i + 1, probelist[i]);
 567                         g_free(probelist[i]);
 568                 } else {
 569                         probe = sr_dev_probe_find(dev, i + 1);
 570                         probe->enabled = FALSE;
 571                 }
 572         }
 573         g_free(probelist);
 574
 575         return SR_OK;
 576 }
 577
 578 /**
 579  * Return the input file format which the CLI tool should use.
 580  *
 581  * If the user specified -I / --input-format, use that one. Otherwise, try to
 582  * autodetect the format as good as possible. Failing that, return NULL.
 583  *
 584  * @param filename The filename of the input file. Must not be NULL.
 585  * @param opt The -I / --input-file option the user specified (or NULL).
 586  *
 587  * @return A pointer to the 'struct sr_input_format' that should be used,
 588  *         or NULL if no input format was selected or auto-detected.
 589  */
 590 static struct sr_input_format *determine_input_file_format(
 591                         const char *filename, const char *opt)
 592 {
 593         int i;
 594         struct sr_input_format **inputs;
 595
 596         /* If there are no input formats, return NULL right away. */
 597         inputs = sr_input_list();
 598         if (!inputs) {
 599                 fprintf(stderr, "cli: %s: no supported input formats "
 600                         "available", __func__);
 601                 return NULL;
 602         }
 603
 604         /* If the user specified -I / --input-format, use that one. */
 605         if (opt) {
 606                 for (i = 0; inputs[i]; i++) {
 607                         if (strcasecmp(inputs[i]->id, opt_input_format))
 608                                 continue;
 609                         printf("Using user-specified input file format"
 610                                " '%s'.\n", inputs[i]->id);
 611                         return inputs[i];
 612                 }
 613
 614                 /* The user specified an unknown input format, return NULL. */
 615                 fprintf(stderr, "Error: Specified input file format '%s' is "
 616                         "unknown.\n", opt_input_format);
 617                 return NULL;
 618         }
 619
 620         /* Otherwise, try to find an input module that can handle this file. */
 621         for (i = 0; inputs[i]; i++) {
 622                 if (inputs[i]->format_match(filename))
 623                         break;
 624         }
 625
 626         /* Return NULL if no input module wanted to touch this. */
 627         if (!inputs[i]) {
 628                 fprintf(stderr, "Error: No matching input module found.\n");
 629                 return NULL;
 630         }
 631
 632         printf("Using input file format '%s'.\n", inputs[i]->id);
 633         return inputs[i];
 634 }
 635
 636 static void load_input_file_format(void)
 637 {
 638         struct stat st;
 639         struct sr_input *in;
 640         struct sr_input_format *input_format;
 641
 642         input_format = determine_input_file_format(opt_input_file,
 643                                                    opt_input_format);
 644         if (!input_format) {
 645                 fprintf(stderr, "Error: Couldn't detect input file format.\n");
 646                 return;
 647         }
 648
 649         if (stat(opt_input_file, &st) == -1) {
 650                 printf("Failed to load %s: %s\n", opt_input_file,
 651                         strerror(errno));
 652                 exit(1);
 653         }
 654
 655         /* Initialize the input module. */
 656         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
 657                 printf("Failed to allocate input module.\n");
 658                 exit(1);
 659         }
 660         in->format = input_format;
 661         in->param = input_format_param;
 662         if (in->format->init) {
 663                 if (in->format->init(in) != SR_OK) {
 664                         printf("Input format init failed.\n");
 665                         exit(1);
 666                 }
 667         }
 668
 669         if (select_probes(in->vdev) > 0)
 670             return;
 671
 672         sr_session_new();
 673         sr_session_datafeed_callback_add(datafeed_in);
 674         if (sr_session_dev_add(in->vdev) != SR_OK) {
 675                 printf("Failed to use device.\n");
 676                 sr_session_destroy();
 677                 return;
 678         }
 679
 680         input_format->loadfile(in, opt_input_file);
 681         if (opt_output_file && default_output_format) {
 682                 if (sr_session_save(opt_output_file) != SR_OK)
 683                         printf("Failed to save session.\n");
 684         }
 685         sr_session_destroy();
 686
 687 }
 688
 689 static void load_input_file(void)
 690 {
 691
 692         if (sr_session_load(opt_input_file) == SR_OK) {
 693                 /* sigrok session file */
 694                 sr_session_datafeed_callback_add(datafeed_in);
 695                 sr_session_start();
 696                 sr_session_run();
 697                 sr_session_stop();
 698         }
 699         else {
 700                 /* fall back on input modules */
 701                 load_input_file_format();
 702         }
 703
 704 }
 705
 706 int num_real_devs(void)
 707 {
 708         struct sr_dev *dev;
 709         GSList *devs, *l;
 710         int num_devs;
 711
 712         num_devs = 0;
 713         devs = sr_dev_list();
 714         for (l = devs; l; l = l->next) {
 715                 dev = l->data;
 716                 if (!sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV))
 717                         num_devs++;
 718         }
 719
 720         return num_devs;
 721 }
 722
 723 static int set_dev_options(struct sr_dev *dev, GHashTable *args)
 724 {
 725         GHashTableIter iter;
 726         gpointer key, value;
 727         int ret, i;
 728         uint64_t tmp_u64;
 729         gboolean found;
 730         gboolean tmp_bool;
 731
 732         g_hash_table_iter_init(&iter, args);
 733         while (g_hash_table_iter_next(&iter, &key, &value)) {
 734                 found = FALSE;
 735                 for (i = 0; sr_hwcap_options[i].hwcap; i++) {
 736                         if (strcmp(sr_hwcap_options[i].shortname, key))
 737                                 continue;
 738                         if ((value == NULL) &&
 739                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
 740                                 printf("Option '%s' needs a value.\n", (char *)key);
 741                                 return SR_ERR;
 742                         }
 743                         found = TRUE;
 744                         switch (sr_hwcap_options[i].type) {
 745                         case SR_T_UINT64:
 746                                 ret = sr_parse_sizestring(value, &tmp_u64);
 747                                 if (ret != SR_OK)
 748                                         break;
 749                                 ret = dev->driver->dev_config_set(dev->driver_index,
 750                                         sr_hwcap_options[i].hwcap, &tmp_u64);
 751                                 break;
 752                         case SR_T_CHAR:
 753                                 ret = dev->driver->dev_config_set(dev->driver_index,
 754                                         sr_hwcap_options[i].hwcap, value);
 755                                 break;
 756                         case SR_T_BOOL:
 757                                 if (!value)
 758                                         tmp_bool = TRUE;
 759                                 else
 760                                         tmp_bool = sr_parse_boolstring(value);
 761                                 ret = dev->driver->dev_config_set(dev->driver_index,
 762                                                 sr_hwcap_options[i].hwcap,
 763                                                 GINT_TO_POINTER(tmp_bool));
 764                                 break;
 765                         default:
 766                                 ret = SR_ERR;
 767                         }
 768
 769                         if (ret != SR_OK) {
 770                                 printf("Failed to set device option '%s'.\n", (char *)key);
 771                                 return ret;
 772                         }
 773                         else
 774                                 break;
 775                 }
 776                 if (!found) {
 777                         printf("Unknown device option '%s'.\n", (char *) key);
 778                         return SR_ERR;
 779                 }
 780         }
 781
 782         return SR_OK;
 783 }
 784
 785 static void run_session(void)
 786 {
 787         struct sr_dev *dev;
 788         GHashTable *devargs;
 789         int num_devs, max_probes, i;
 790         uint64_t time_msec;
 791         char **probelist, *devspec;
 792
 793         devargs = NULL;
 794         if (opt_dev) {
 795                 devargs = parse_generic_arg(opt_dev);
 796                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
 797                 dev = parse_devstring(devspec);
 798                 if (!dev) {
 799                         g_warning("Device not found.");
 800                         return;
 801                 }
 802                 g_hash_table_remove(devargs, "sigrok_key");
 803         } else {
 804                 num_devs = num_real_devs();
 805                 if (num_devs == 1) {
 806                         /* No device specified, but there is only one. */
 807                         devargs = NULL;
 808                         dev = parse_devstring("0");
 809                 } else if (num_devs == 0) {
 810                         printf("No devices found.\n");
 811                         return;
 812                 } else {
 813                         printf("%d devices found, please select one.\n", num_devs);
 814                         return;
 815                 }
 816         }
 817
 818         sr_session_new();
 819         sr_session_datafeed_callback_add(datafeed_in);
 820
 821         if (sr_session_dev_add(dev) != SR_OK) {
 822                 printf("Failed to use device.\n");
 823                 sr_session_destroy();
 824                 return;
 825         }
 826
 827         if (devargs) {
 828                 if (set_dev_options(dev, devargs) != SR_OK) {
 829                         sr_session_destroy();
 830                         return;
 831                 }
 832                 g_hash_table_destroy(devargs);
 833         }
 834
 835         if (select_probes(dev) != SR_OK)
 836             return;
 837
 838         if (opt_continuous) {
 839                 if (!sr_driver_hwcap_exists(dev->driver, SR_HWCAP_CONTINUOUS)) {
 840                         printf("This device does not support continuous sampling.");
 841                         sr_session_destroy();
 842                         return;
 843                 }
 844         }
 845
 846         if (opt_triggers) {
 847                 probelist = sr_parse_triggerstring(dev, opt_triggers);
 848                 if (!probelist) {
 849                         sr_session_destroy();
 850                         return;
 851                 }
 852
 853                 max_probes = g_slist_length(dev->probes);
 854                 for (i = 0; i < max_probes; i++) {
 855                         if (probelist[i]) {
 856                                 sr_dev_trigger_set(dev, i + 1, probelist[i]);
 857                                 g_free(probelist[i]);
 858                         }
 859                 }
 860                 g_free(probelist);
 861         }
 862
 863         if (opt_time) {
 864                 time_msec = sr_parse_timestring(opt_time);
 865                 if (time_msec == 0) {
 866                         printf("Invalid time '%s'\n", opt_time);
 867                         sr_session_destroy();
 868                         return;
 869                 }
 870
 871                 if (sr_driver_hwcap_exists(dev->driver, SR_HWCAP_LIMIT_MSEC)) {
 872                         if (dev->driver->dev_config_set(dev->driver_index,
 873                             SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
 874                                 printf("Failed to configure time limit.\n");
 875                                 sr_session_destroy();
 876                                 return;
 877                         }
 878                 }
 879                 else {
 880                         /* time limit set, but device doesn't support this...
 881                          * convert to samples based on the samplerate.
 882                          */
 883                         limit_samples = 0;
 884                         if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
 885                                 const uint64_t *samplerate;
 886
 887                                 sr_dev_info_get(dev, SR_DI_CUR_SAMPLERATE,
 888                                                 (const void **)&samplerate);
 889                                 limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
 890                         }
 891                         if (limit_samples == 0) {
 892                                 printf("Not enough time at this samplerate.\n");
 893                                 sr_session_destroy();
 894                                 return;
 895                         }
 896
 897                         if (dev->driver->dev_config_set(dev->driver_index,
 898                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
 899                                 printf("Failed to configure time-based sample limit.\n");
 900                                 sr_session_destroy();
 901                                 return;
 902                         }
 903                 }
 904         }
 905
 906         if (opt_samples) {
 907                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
 908                         || (dev->driver->dev_config_set(dev->driver_index,
 909                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
 910                         printf("Failed to configure sample limit.\n");
 911                         sr_session_destroy();
 912                         return;
 913                 }
 914         }
 915
 916         if (dev->driver->dev_config_set(dev->driver_index,
 917                   SR_HWCAP_PROBECONFIG, (char *)dev->probes) != SR_OK) {
 918                 printf("Failed to configure probes.\n");
 919                 sr_session_destroy();
 920                 return;
 921         }
 922
 923         if (sr_session_start() != SR_OK) {
 924                 printf("Failed to start session.\n");
 925                 sr_session_destroy();
 926                 return;
 927         }
 928
 929         if (opt_continuous)
 930                 add_anykey();
 931
 932         sr_session_run();
 933
 934         if (opt_continuous)
 935                 clear_anykey();
 936
 937         if (opt_output_file && default_output_format) {
 938                 if (sr_session_save(opt_output_file) != SR_OK)
 939                         printf("Failed to save session.\n");
 940         }
 941         sr_session_destroy();
 942
 943 }
 944
 945 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
 946                    const gchar *message, gpointer cb_data)
 947 {
 948         /* Avoid compiler warnings. */
 949         (void)log_domain;
 950         (void)cb_data;
 951
 952         /*
 953          * All messages, warnings, errors etc. go to stderr (not stdout) in
 954          * order to not mess up the CLI tool data output, e.g. VCD output.
 955          */
 956         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_WARNING)) {
 957                 fprintf(stderr, "%s\n", message);
 958                 fflush(stderr);
 959         } else {
 960                 if ((log_level & G_LOG_LEVEL_MESSAGE && debug == 1)
 961                     || debug == 2) {
 962                         printf("%s\n", message);
 963                         fflush(stderr);
 964                 }
 965         }
 966 }
 967
 968 int main(int argc, char **argv)
 969 {
 970         GOptionContext *context;
 971         GError *error;
 972         GHashTable *fmtargs;
 973         GHashTableIter iter;
 974         gpointer key, value;
 975         struct sr_output_format **outputs;
 976         struct srd_decoder_inst *di_from, *di_to;
 977         int i, ret;
 978         char *fmtspec, **pds;
 979
 980         g_log_set_default_handler(logger, NULL);
 981         if (getenv("SIGROK_DEBUG"))
 982                 debug = strtol(getenv("SIGROK_DEBUG"), NULL, 10);
 983
 984         error = NULL;
 985         context = g_option_context_new(NULL);
 986         g_option_context_add_main_entries(context, optargs, NULL);
 987
 988         if (!g_option_context_parse(context, &argc, &argv, &error)) {
 989                 g_warning("%s", error->message);
 990                 return 1;
 991         }
 992
 993         /* Set the loglevel (amount of messages to output) for libsigrok. */
 994         if (sr_log_loglevel_set(opt_loglevel) != SR_OK) {
 995                 fprintf(stderr, "cli: %s: sr_log_loglevel_set(%d) failed\n",
 996                         __func__, opt_loglevel);
 997                 return 1;
 998         }
 999
1000         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1001         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK) {
1002                 fprintf(stderr, "cli: %s: srd_log_loglevel_set(%d) failed\n",
1003                         __func__, opt_loglevel);
1004                 return 1;
1005         }
1006
1007         if (sr_init() != SR_OK)
1008                 return 1;
1009
1010         if (opt_pds) {
1011                 if (srd_init(NULL) != SRD_OK) {
1012                         printf("Failed to initialize sigrokdecode\n");
1013                         return 1;
1014                 }
1015                 if (register_pds(NULL, opt_pds) != 0) {
1016                         printf("Failed to register protocol decoders\n");
1017                         return 1;
1018                 }
1019                 if (srd_register_callback(SRD_OUTPUT_ANN,
1020                                 show_pd_annotation, NULL) != SRD_OK) {
1021                         printf("Failed to register protocol decoder callback\n");
1022                         return 1;
1023                 }
1024         }
1025
1026         if (opt_pd_stack) {
1027                 pds = g_strsplit(opt_pd_stack, ",", 0);
1028                 if (g_strv_length(pds) < 2) {
1029                         printf("Specify at least two protocol decoders to stack.\n");
1030                         return 1;
1031                 }
1032
1033                 if (!(di_from = srd_inst_find_by_id(pds[0]))) {
1034                         printf("Cannot stack protocol decoder '%s': instance not found.\n", pds[0]);
1035                         return 1;
1036                 }
1037                 for (i = 1; pds[i]; i++) {
1038                         if (!(di_to = srd_inst_find_by_id(pds[i]))) {
1039                                 printf("Cannot stack protocol decoder '%s': instance not found.\n", pds[i]);
1040                                 return 1;
1041                         }
1042                         if ((ret = srd_inst_stack(di_from, di_to) != SRD_OK))
1043                                 return ret;
1044
1045                         /* Don't show annotation from this PD. Only the last PD in
1046                          * the stack will be left on the annotation list.
1047                          */
1048                         g_datalist_remove_data(&pd_ann_visible, di_from->inst_id);
1049
1050                         di_from = di_to;
1051                 }
1052                 g_strfreev(pds);
1053         }
1054
1055         if (!opt_output_format) {
1056                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
1057                 /* we'll need to remember this so when saving to a file
1058                  * later, sigrok session format will be used.
1059                  */
1060                 default_output_format = TRUE;
1061         }
1062         fmtargs = parse_generic_arg(opt_output_format);
1063         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1064         if (!fmtspec) {
1065                 printf("Invalid output format.\n");
1066                 return 1;
1067         }
1068         outputs = sr_output_list();
1069         for (i = 0; outputs[i]; i++) {
1070                 if (strcmp(outputs[i]->id, fmtspec))
1071                         continue;
1072                 g_hash_table_remove(fmtargs, "sigrok_key");
1073                 output_format = outputs[i];
1074                 g_hash_table_iter_init(&iter, fmtargs);
1075                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1076                         /* only supporting one parameter per output module
1077                          * for now, and only its value */
1078                         output_format_param = g_strdup(value);
1079                         break;
1080                 }
1081                 break;
1082         }
1083         if (!output_format) {
1084                 printf("invalid output format %s\n", opt_output_format);
1085                 return 1;
1086         }
1087
1088         if (opt_version)
1089                 show_version();
1090         else if (opt_list_devs)
1091                 show_dev_list();
1092         else if (opt_input_file)
1093                 load_input_file();
1094         else if (opt_samples || opt_time || opt_continuous)
1095                 run_session();
1096         else if (opt_dev)
1097                 show_dev_detail();
1098         else if (opt_pds)
1099                 show_pd_detail();
1100         else
1101                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1102
1103         if (opt_pds)
1104                 srd_exit();
1105
1106         g_option_context_free(context);
1107         g_hash_table_destroy(fmtargs);
1108         sr_exit();
1109
1110         return 0;
1111 }