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_devices = 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_device = 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_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_devices, "List devices", NULL},
  70         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file, "Load input from file", NULL},
  71         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file, "Save output to file", NULL},
  72         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_device, "Use device ID", NULL},
  73         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes, "Probes to use", NULL},
  74         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers, "Trigger configuration", NULL},
  75         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger, "Wait for trigger", NULL},
  76         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds, "Protocol decoder sequence", NULL},
  77         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack, "Protocol decoder stack", NULL},
  78         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format, "Input format", NULL},
  79         {"format", 'f', 0, G_OPTION_ARG_STRING, &opt_format, "Output format", 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 *plugins, *p, *l;
  89         struct sr_device_plugin *plugin;
  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         printf("Supported hardware drivers:\n");
  97         plugins = sr_hwplugins_list();
  98         for (p = plugins; p; p = p->next) {
  99                 plugin = p->data;
 100                 printf("  %-20s %s\n", plugin->name, plugin->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         /* TODO: Error handling. */
 117         srd_init(NULL);
 118
 119         printf("Supported protocol decoders:\n");
 120         for (l = srd_list_decoders(); l; l = l->next) {
 121                 dec = l->data;
 122                 printf("  %-20s %s\n", dec->id, dec->longname);
 123         }
 124         printf("\n");
 125
 126         srd_exit();
 127 }
 128
 129 static void print_device_line(const struct sr_device *device)
 130 {
 131         const struct sr_device_instance *sdi;
 132
 133         sr_dev_get_info(device, SR_DI_INSTANCE, (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 (device->probes)
 142                 printf("with %d probes", g_slist_length(device->probes));
 143         printf("\n");
 144 }
 145
 146 static void show_device_list(void)
 147 {
 148         struct sr_device *device, *demo_device;
 149         GSList *devices, *l;
 150         int devcnt;
 151
 152         devcnt = 0;
 153         devices = sr_dev_list();
 154
 155         if (g_slist_length(devices) == 0)
 156                 return;
 157
 158         printf("The following devices were found:\nID    Device\n");
 159         demo_device = NULL;
 160         for (l = devices; l; l = l->next) {
 161                 device = l->data;
 162                 if (sr_dev_has_hwcap(device, SR_HWCAP_DEMO_DEVICE)) {
 163                         demo_device = device;
 164                         continue;
 165                 }
 166                 printf("%-3d   ", devcnt++);
 167                 print_device_line(device);
 168         }
 169         if (demo_device) {
 170                 printf("demo  ");
 171                 print_device_line(demo_device);
 172         }
 173 }
 174
 175 static void show_device_detail(void)
 176 {
 177         struct sr_device *device;
 178         struct sr_hwcap_option *hwo;
 179         const struct sr_samplerates *samplerates;
 180         int cap, *capabilities, i;
 181         char *s, *title;
 182         const char *charopts, **stropts;
 183
 184         device = parse_devicestring(opt_device);
 185         if (!device) {
 186                 printf("No such device. Use -D to list all devices.\n");
 187                 return;
 188         }
 189
 190         print_device_line(device);
 191
 192         if (sr_dev_get_info(device, 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         capabilities = device->plugin->get_capabilities();
 204         for (cap = 0; capabilities[cap]; cap++) {
 205                 if (!(hwo = sr_find_hwcap_option(capabilities[cap])))
 206                         continue;
 207
 208                 if (title) {
 209                         printf("%s", title);
 210                         title = NULL;
 211                 }
 212
 213                 if (hwo->capability == SR_HWCAP_PATTERN_MODE) {
 214                         printf("    %s", hwo->shortname);
 215                         if (sr_dev_get_info(device, 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->capability == SR_HWCAP_SAMPLERATE) {
 224                         printf("    %s", hwo->shortname);
 225                         /* Supported samplerates */
 226                         if (sr_dev_get_info(device, 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("      %7s\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_get_decoder_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_device *device, 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->device = device;
 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(device->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, &(device->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 --format, 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 (device->datastore)
 432                 sr_datastore_put(device->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_device *device, 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)device;
 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 (!(di = srd_inst_new(pd_name, pd_opthash))) {
 488                         fprintf(stderr, "Failed to instantiate PD %s\n", pd_name);
 489                         goto err_out;
 490                 }
 491                 g_datalist_set_data(&pd_ann_visible, di->inst_id, pd_name);
 492
 493                 /* Any keys left in the options hash are probes, where the key
 494                  * is the probe name as specified in the decoder class, and the
 495                  * value is the probe number i.e. the order in which the PD's
 496                  * incoming samples are arranged. */
 497                 if (srd_inst_set_probes(di, pd_opthash) != SRD_OK)
 498                         goto err_out;
 499                 g_hash_table_destroy(pd_opthash);
 500                 pd_opthash = NULL;
 501         }
 502
 503 err_out:
 504         g_strfreev(pdtokens);
 505         if (pd_opthash)
 506                 g_hash_table_destroy(pd_opthash);
 507         if (pd_name)
 508                 g_free(pd_name);
 509
 510         return 0;
 511 }
 512
 513 void show_pd_annotation(struct srd_proto_data *pdata, void *user_data)
 514 {
 515         int i;
 516         char **annotations;
 517
 518         /* 'user_data' is not used in this specific callback. */
 519         (void)user_data;
 520
 521         if (pdata->ann_format != 0) {
 522                 /* CLI only shows the default annotation format. */
 523                 return;
 524         }
 525
 526         if (!g_datalist_get_data(&pd_ann_visible, pdata->pdo->di->inst_id)) {
 527                 /* Not in the list of PDs whose annotations we're showing. */
 528                 return;
 529         }
 530
 531         annotations = pdata->data;
 532         if (opt_loglevel > SR_LOG_WARN)
 533                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
 534         printf("%s: ", pdata->pdo->proto_id);
 535         for (i = 0; annotations[i]; i++)
 536                 printf("\"%s\" ", annotations[i]);
 537         printf("\n");
 538
 539 }
 540
 541 static int select_probes(struct sr_device *device)
 542 {
 543         struct sr_probe *probe;
 544         char **probelist;
 545         int max_probes, i;
 546
 547         if (!opt_probes)
 548                 return SR_OK;
 549
 550         /*
 551          * This only works because a device by default initializes
 552          * and enables all its probes.
 553          */
 554         max_probes = g_slist_length(device->probes);
 555         probelist = parse_probestring(max_probes, opt_probes);
 556         if (!probelist) {
 557                 return SR_ERR;
 558         }
 559
 560         for (i = 0; i < max_probes; i++) {
 561                 if (probelist[i]) {
 562                         sr_dev_probe_name(device, i + 1, probelist[i]);
 563                         g_free(probelist[i]);
 564                 } else {
 565                         probe = sr_dev_probe_find(device, i + 1);
 566                         probe->enabled = FALSE;
 567                 }
 568         }
 569         g_free(probelist);
 570
 571         return SR_OK;
 572 }
 573
 574 /**
 575  * Return the input file format which the CLI tool should use.
 576  *
 577  * If the user specified -I / --input-format, use that one. Otherwise, try to
 578  * autodetect the format as good as possible. Failing that, return NULL.
 579  *
 580  * @param filename The filename of the input file. Must not be NULL.
 581  * @param opt The -I / --input-file option the user specified (or NULL).
 582  *
 583  * @return A pointer to the 'struct sr_input_format' that should be used,
 584  *         or NULL if no input format was selected or auto-detected.
 585  */
 586 static struct sr_input_format *determine_input_file_format(
 587                         const char *filename, const char *opt)
 588 {
 589         int i;
 590         struct sr_input_format **inputs;
 591
 592         /* If there are no input formats, return NULL right away. */
 593         inputs = sr_input_list();
 594         if (!inputs) {
 595                 fprintf(stderr, "cli: %s: no supported input formats "
 596                         "available", __func__);
 597                 return NULL;
 598         }
 599
 600         /* If the user specified -I / --input-format, use that one. */
 601         if (opt) {
 602                 for (i = 0; inputs[i]; i++) {
 603                         if (strcasecmp(inputs[i]->id, opt_input_format))
 604                                 continue;
 605                         printf("Using user-specified input file format"
 606                                " '%s'.\n", inputs[i]->id);
 607                         return inputs[i];
 608                 }
 609
 610                 /* The user specified an unknown input format, return NULL. */
 611                 fprintf(stderr, "Error: Specified input file format '%s' is "
 612                         "unknown.\n", opt_input_format);
 613                 return NULL;
 614         }
 615
 616         /* Otherwise, try to find an input module that can handle this file. */
 617         for (i = 0; inputs[i]; i++) {
 618                 if (inputs[i]->format_match(filename))
 619                         break;
 620         }
 621
 622         /* Return NULL if no input module wanted to touch this. */
 623         if (!inputs[i]) {
 624                 fprintf(stderr, "Error: No matching input module found.\n");
 625                 return NULL;
 626         }
 627
 628         printf("Using input file format '%s'.\n", inputs[i]->id);
 629         return inputs[i];
 630 }
 631
 632 static void load_input_file_format(void)
 633 {
 634         struct stat st;
 635         struct sr_input *in;
 636         struct sr_input_format *input_format;
 637
 638         input_format = determine_input_file_format(opt_input_file,
 639                                                    opt_input_format);
 640         if (!input_format) {
 641                 fprintf(stderr, "Error: Couldn't detect input file format.\n");
 642                 return;
 643         }
 644
 645         if (stat(opt_input_file, &st) == -1) {
 646                 printf("Failed to load %s: %s\n", opt_input_file,
 647                         strerror(errno));
 648                 exit(1);
 649         }
 650
 651         /* Initialize the input module. */
 652         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
 653                 printf("Failed to allocate input module.\n");
 654                 exit(1);
 655         }
 656         in->format = input_format;
 657         in->param = input_format_param;
 658         if (in->format->init) {
 659                 if (in->format->init(in) != SR_OK) {
 660                         printf("Input format init failed.\n");
 661                         exit(1);
 662                 }
 663         }
 664
 665         if (select_probes(in->vdevice) > 0)
 666             return;
 667
 668         sr_session_new();
 669         sr_session_datafeed_callback_add(datafeed_in);
 670         if (sr_session_device_add(in->vdevice) != SR_OK) {
 671                 printf("Failed to use device.\n");
 672                 sr_session_destroy();
 673                 return;
 674         }
 675
 676         input_format->loadfile(in, opt_input_file);
 677         if (opt_output_file && default_output_format) {
 678                 if (sr_session_save(opt_output_file) != SR_OK)
 679                         printf("Failed to save session.\n");
 680         }
 681         sr_session_destroy();
 682
 683 }
 684
 685 static void load_input_file(void)
 686 {
 687
 688         if (sr_session_load(opt_input_file) == SR_OK) {
 689                 /* sigrok session file */
 690                 sr_session_datafeed_callback_add(datafeed_in);
 691                 sr_session_start();
 692                 sr_session_run();
 693                 sr_session_stop();
 694         }
 695         else {
 696                 /* fall back on input modules */
 697                 load_input_file_format();
 698         }
 699
 700 }
 701
 702 int num_real_devices(void)
 703 {
 704         struct sr_device *device;
 705         GSList *devices, *l;
 706         int num_devices;
 707
 708         num_devices = 0;
 709         devices = sr_dev_list();
 710         for (l = devices; l; l = l->next) {
 711                 device = l->data;
 712                 if (!sr_dev_has_hwcap(device, SR_HWCAP_DEMO_DEVICE))
 713                         num_devices++;
 714         }
 715
 716         return num_devices;
 717 }
 718
 719 static int set_device_options(struct sr_device *device, GHashTable *args)
 720 {
 721         GHashTableIter iter;
 722         gpointer key, value;
 723         int ret, i;
 724         uint64_t tmp_u64;
 725         gboolean found;
 726         gboolean tmp_bool;
 727
 728         g_hash_table_iter_init(&iter, args);
 729         while (g_hash_table_iter_next(&iter, &key, &value)) {
 730                 found = FALSE;
 731                 for (i = 0; sr_hwcap_options[i].capability; i++) {
 732                         if (strcmp(sr_hwcap_options[i].shortname, key))
 733                                 continue;
 734                         if ((value == NULL) &&
 735                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
 736                                 printf("Option '%s' needs a value.\n", (char *)key);
 737                                 return SR_ERR;
 738                         }
 739                         found = TRUE;
 740                         switch (sr_hwcap_options[i].type) {
 741                         case SR_T_UINT64:
 742                                 ret = sr_parse_sizestring(value, &tmp_u64);
 743                                 if (ret != SR_OK)
 744                                         break;
 745                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 746                                                 sr_hwcap_options[i]. capability, &tmp_u64);
 747                                 break;
 748                         case SR_T_CHAR:
 749                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 750                                                 sr_hwcap_options[i]. capability, value);
 751                                 break;
 752                         case SR_T_BOOL:
 753                                 if (!value)
 754                                         tmp_bool = TRUE;
 755                                 else
 756                                         tmp_bool = sr_parse_boolstring(value);
 757                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 758                                                 sr_hwcap_options[i]. capability,
 759                                                 GINT_TO_POINTER(tmp_bool));
 760                                 break;
 761                         default:
 762                                 ret = SR_ERR;
 763                         }
 764
 765                         if (ret != SR_OK) {
 766                                 printf("Failed to set device option '%s'.\n", (char *)key);
 767                                 return ret;
 768                         }
 769                         else
 770                                 break;
 771                 }
 772                 if (!found) {
 773                         printf("Unknown device option '%s'.\n", (char *) key);
 774                         return SR_ERR;
 775                 }
 776         }
 777
 778         return SR_OK;
 779 }
 780
 781 static void run_session(void)
 782 {
 783         struct sr_device *device;
 784         GHashTable *devargs;
 785         int num_devices, max_probes, *capabilities, i;
 786         uint64_t time_msec;
 787         char **probelist, *devspec;
 788
 789         devargs = NULL;
 790         if (opt_device) {
 791                 devargs = parse_generic_arg(opt_device);
 792                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
 793                 device = parse_devicestring(devspec);
 794                 if (!device) {
 795                         g_warning("Device not found.");
 796                         return;
 797                 }
 798                 g_hash_table_remove(devargs, "sigrok_key");
 799         } else {
 800                 num_devices = num_real_devices();
 801                 if (num_devices == 1) {
 802                         /* No device specified, but there is only one. */
 803                         devargs = NULL;
 804                         device = parse_devicestring("0");
 805                 } else if (num_devices == 0) {
 806                         printf("No devices found.\n");
 807                         return;
 808                 } else {
 809                         printf("%d devices found, please select one.\n", num_devices);
 810                         return;
 811                 }
 812         }
 813
 814         sr_session_new();
 815         sr_session_datafeed_callback_add(datafeed_in);
 816
 817         if (sr_session_device_add(device) != SR_OK) {
 818                 printf("Failed to use device.\n");
 819                 sr_session_destroy();
 820                 return;
 821         }
 822
 823         if (devargs) {
 824                 if (set_device_options(device, devargs) != SR_OK) {
 825                         sr_session_destroy();
 826                         return;
 827                 }
 828                 g_hash_table_destroy(devargs);
 829         }
 830
 831         if (select_probes(device) != SR_OK)
 832             return;
 833
 834         if (opt_continuous) {
 835                 capabilities = device->plugin->get_capabilities();
 836                 if (!sr_has_hwcap(capabilities, SR_HWCAP_CONTINUOUS)) {
 837                         printf("This device does not support continuous sampling.");
 838                         sr_session_destroy();
 839                         return;
 840                 }
 841         }
 842
 843         if (opt_triggers) {
 844                 probelist = sr_parse_triggerstring(device, opt_triggers);
 845                 if (!probelist) {
 846                         sr_session_destroy();
 847                         return;
 848                 }
 849
 850                 max_probes = g_slist_length(device->probes);
 851                 for (i = 0; i < max_probes; i++) {
 852                         if (probelist[i]) {
 853                                 sr_dev_trigger_set(device, i + 1, probelist[i]);
 854                                 g_free(probelist[i]);
 855                         }
 856                 }
 857                 g_free(probelist);
 858         }
 859
 860         if (opt_time) {
 861                 time_msec = sr_parse_timestring(opt_time);
 862                 if (time_msec == 0) {
 863                         printf("Invalid time '%s'\n", opt_time);
 864                         sr_session_destroy();
 865                         return;
 866                 }
 867
 868                 capabilities = device->plugin->get_capabilities();
 869                 if (sr_has_hwcap(capabilities, SR_HWCAP_LIMIT_MSEC)) {
 870                         if (device->plugin->set_configuration(device->plugin_index,
 871                                                           SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
 872                                 printf("Failed to configure time limit.\n");
 873                                 sr_session_destroy();
 874                                 return;
 875                         }
 876                 }
 877                 else {
 878                         /* time limit set, but device doesn't support this...
 879                          * convert to samples based on the samplerate.
 880                          */
 881                         limit_samples = 0;
 882                         if (sr_dev_has_hwcap(device, SR_HWCAP_SAMPLERATE)) {
 883                                 const uint64_t *samplerate;
 884
 885                                 sr_dev_get_info(device, SR_DI_CUR_SAMPLERATE,
 886                                                 (const void **)&samplerate);
 887                                 limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
 888                         }
 889                         if (limit_samples == 0) {
 890                                 printf("Not enough time at this samplerate.\n");
 891                                 sr_session_destroy();
 892                                 return;
 893                         }
 894
 895                         if (device->plugin->set_configuration(device->plugin_index,
 896                                                   SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
 897                                 printf("Failed to configure time-based sample limit.\n");
 898                                 sr_session_destroy();
 899                                 return;
 900                         }
 901                 }
 902         }
 903
 904         if (opt_samples) {
 905                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
 906                         || (device->plugin->set_configuration(device->plugin_index,
 907                                         SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
 908                         printf("Failed to configure sample limit.\n");
 909                         sr_session_destroy();
 910                         return;
 911                 }
 912         }
 913
 914         if (device->plugin->set_configuration(device->plugin_index,
 915                   SR_HWCAP_PROBECONFIG, (char *)device->probes) != SR_OK) {
 916                 printf("Failed to configure probes.\n");
 917                 sr_session_destroy();
 918                 return;
 919         }
 920
 921         if (sr_session_start() != SR_OK) {
 922                 printf("Failed to start session.\n");
 923                 sr_session_destroy();
 924                 return;
 925         }
 926
 927         if (opt_continuous)
 928                 add_anykey();
 929
 930         sr_session_run();
 931
 932         if (opt_continuous)
 933                 clear_anykey();
 934
 935         if (opt_output_file && default_output_format) {
 936                 if (sr_session_save(opt_output_file) != SR_OK)
 937                         printf("Failed to save session.\n");
 938         }
 939         sr_session_destroy();
 940
 941 }
 942
 943 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
 944                    const gchar *message, gpointer user_data)
 945 {
 946         /* Avoid compiler warnings. */
 947         (void)log_domain;
 948         (void)user_data;
 949
 950         /*
 951          * All messages, warnings, errors etc. go to stderr (not stdout) in
 952          * order to not mess up the CLI tool data output, e.g. VCD output.
 953          */
 954         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_WARNING)) {
 955                 fprintf(stderr, "%s\n", message);
 956                 fflush(stderr);
 957         } else {
 958                 if ((log_level & G_LOG_LEVEL_MESSAGE && debug == 1)
 959                     || debug == 2) {
 960                         printf("%s\n", message);
 961                         fflush(stderr);
 962                 }
 963         }
 964 }
 965
 966 int main(int argc, char **argv)
 967 {
 968         GOptionContext *context;
 969         GError *error;
 970         GHashTable *fmtargs;
 971         GHashTableIter iter;
 972         gpointer key, value;
 973         struct sr_output_format **outputs;
 974         struct srd_decoder_inst *di_from, *di_to;
 975         int i, ret;
 976         char *fmtspec, **pds;
 977
 978         g_log_set_default_handler(logger, NULL);
 979         if (getenv("SIGROK_DEBUG"))
 980                 debug = strtol(getenv("SIGROK_DEBUG"), NULL, 10);
 981
 982         error = NULL;
 983         context = g_option_context_new(NULL);
 984         g_option_context_add_main_entries(context, optargs, NULL);
 985
 986         if (!g_option_context_parse(context, &argc, &argv, &error)) {
 987                 g_warning("%s", error->message);
 988                 return 1;
 989         }
 990
 991         /* Set the loglevel (amount of messages to output) for libsigrok. */
 992         if (sr_log_loglevel_set(opt_loglevel) != SR_OK) {
 993                 fprintf(stderr, "cli: %s: sr_log_loglevel_set(%d) failed\n",
 994                         __func__, opt_loglevel);
 995                 return 1;
 996         }
 997
 998         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
 999         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK) {
1000                 fprintf(stderr, "cli: %s: srd_log_loglevel_set(%d) failed\n",
1001                         __func__, opt_loglevel);
1002                 return 1;
1003         }
1004
1005         if (sr_init() != SR_OK)
1006                 return 1;
1007
1008         if (opt_pds) {
1009                 if (srd_init(NULL) != SRD_OK) {
1010                         printf("Failed to initialize sigrokdecode\n");
1011                         return 1;
1012                 }
1013                 if (register_pds(NULL, opt_pds) != 0) {
1014                         printf("Failed to register protocol decoders\n");
1015                         return 1;
1016                 }
1017                 if (srd_register_callback(SRD_OUTPUT_ANN,
1018                                 show_pd_annotation, NULL) != SRD_OK) {
1019                         printf("Failed to register protocol decoder callback\n");
1020                         return 1;
1021                 }
1022         }
1023
1024         if (opt_pd_stack) {
1025                 pds = g_strsplit(opt_pd_stack, ",", 0);
1026                 if (g_strv_length(pds) < 2) {
1027                         printf("Specify at least two protocol decoders to stack.\n");
1028                         return 1;
1029                 }
1030
1031                 if (!(di_from = srd_inst_find_by_id(pds[0]))) {
1032                         printf("Cannot stack protocol decoder '%s': instance not found.\n", pds[0]);
1033                         return 1;
1034                 }
1035                 for (i = 1; pds[i]; i++) {
1036                         if (!(di_to = srd_inst_find_by_id(pds[i]))) {
1037                                 printf("Cannot stack protocol decoder '%s': instance not found.\n", pds[i]);
1038                                 return 1;
1039                         }
1040                         if ((ret = srd_inst_stack(di_from, di_to) != SRD_OK))
1041                                 return ret;
1042
1043                         /* Don't show annotation from this PD. Only the last PD in
1044                          * the stack will be left on the annotation list.
1045                          */
1046                         g_datalist_remove_data(&pd_ann_visible, di_from->inst_id);
1047
1048                         di_from = di_to;
1049                 }
1050                 g_strfreev(pds);
1051         }
1052
1053         if (!opt_format) {
1054                 opt_format = DEFAULT_OUTPUT_FORMAT;
1055                 /* we'll need to remember this so when saving to a file
1056                  * later, sigrok session format will be used.
1057                  */
1058                 default_output_format = TRUE;
1059         }
1060         fmtargs = parse_generic_arg(opt_format);
1061         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1062         if (!fmtspec) {
1063                 printf("Invalid output format.\n");
1064                 return 1;
1065         }
1066         outputs = sr_output_list();
1067         for (i = 0; outputs[i]; i++) {
1068                 if (strcmp(outputs[i]->id, fmtspec))
1069                         continue;
1070                 g_hash_table_remove(fmtargs, "sigrok_key");
1071                 output_format = outputs[i];
1072                 g_hash_table_iter_init(&iter, fmtargs);
1073                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1074                         /* only supporting one parameter per output module
1075                          * for now, and only its value */
1076                         output_format_param = g_strdup(value);
1077                         break;
1078                 }
1079                 break;
1080         }
1081         if (!output_format) {
1082                 printf("invalid output format %s\n", opt_format);
1083                 return 1;
1084         }
1085
1086         if (opt_version)
1087                 show_version();
1088         else if (opt_list_devices)
1089                 show_device_list();
1090         else if (opt_input_file)
1091                 load_input_file();
1092         else if (opt_samples || opt_time || opt_continuous)
1093                 run_session();
1094         else if (opt_device)
1095                 show_device_detail();
1096         else if (opt_pds)
1097                 show_pd_detail();
1098         else
1099                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1100
1101         if (opt_pds)
1102                 srd_exit();
1103
1104         g_option_context_free(context);
1105         g_hash_table_destroy(fmtargs);
1106         sr_exit();
1107
1108         return 0;
1109 }