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_list_hwplugins();
  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();
 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_device_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_device_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_device_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_device_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_device_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_device_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                                 free(s);
 238                                 /* high */
 239                                 if (!(s = sr_samplerate_string(samplerates->high)))
 240                                         continue;
 241                                 printf(" - %s", s);
 242                                 free(s);
 243                                 /* step */
 244                                 if (!(s = sr_samplerate_string(samplerates->step)))
 245                                         continue;
 246                                 printf(" in steps of %s)\n", s);
 247                                 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 = 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                                 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                 free(o);
 387                 o = NULL;
 388                 break;
 389         case SR_DF_TRIGGER:
 390                 g_message("cli: received SR_DF_TRIGGER at %"PRIu64" ms",
 391                                 packet->timeoffset / 1000000);
 392                 if (o->format->event)
 393                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 394                                          &output_len);
 395                 triggered = 1;
 396                 break;
 397         case SR_DF_LOGIC:
 398                 logic = packet->payload;
 399                 sample_size = logic->unitsize;
 400                 g_message("cli: received SR_DF_LOGIC at %f ms duration %f ms, %"PRIu64" bytes",
 401                                 packet->timeoffset / 1000000.0, packet->duration / 1000000.0,
 402                                 logic->length);
 403                 break;
 404         case SR_DF_ANALOG:
 405                 break;
 406         }
 407
 408         /* not supporting anything but SR_DF_LOGIC for now */
 409
 410         if (sample_size == -1 || logic->length == 0)
 411                 return;
 412
 413         /* Don't store any samples until triggered. */
 414         if (opt_wait_trigger && !triggered)
 415                 return;
 416
 417         if (limit_samples && received_samples >= limit_samples)
 418                 return;
 419
 420         /* TODO: filters only support SR_DF_LOGIC */
 421         ret = sr_filter_probes(sample_size, unitsize, probelist,
 422                                    logic->data, logic->length,
 423                                    &filter_out, &filter_out_len);
 424         if (ret != SR_OK)
 425                 return;
 426
 427         /* what comes out of the filter is guaranteed to be packed into the
 428          * minimum size needed to support the number of samples at this sample
 429          * size. however, the driver may have submitted too much -- cut off
 430          * the buffer of the last packet according to the sample limit.
 431          */
 432         if (limit_samples && (received_samples + logic->length / sample_size >
 433                         limit_samples * sample_size))
 434                 filter_out_len = limit_samples * sample_size - received_samples;
 435
 436         if (device->datastore)
 437                 sr_datastore_put(device->datastore, filter_out,
 438                                  filter_out_len, sample_size, probelist);
 439
 440         if (opt_output_file && default_output_format)
 441                 /* saving to a session file, don't need to do anything else
 442                  * to this data for now. */
 443                 goto cleanup;
 444
 445         if (opt_pds) {
 446                 if (srd_session_feed(received_samples, (uint8_t*)filter_out,
 447                                 filter_out_len) != SRD_OK)
 448                         sr_session_halt();
 449         } else {
 450                 output_len = 0;
 451                 if (o->format->data && packet->type == o->format->df_type)
 452                         o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 453                 if (output_len) {
 454                         fwrite(output_buf, 1, output_len, outfile);
 455                         free(output_buf);
 456                 }
 457         }
 458
 459 cleanup:
 460         g_free(filter_out);
 461         received_samples += logic->length / sample_size;
 462
 463 }
 464
 465 /* Register the given PDs for this session.
 466  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 467  * That will instantiate two SPI decoders on the clock but different data
 468  * lines.
 469  */
 470 static int register_pds(struct sr_device *device, const char *pdstring)
 471 {
 472         GHashTable *pd_opthash;
 473         struct srd_decoder_instance *di;
 474         char **pdtokens, **pdtok, *pd_name;
 475
 476         /* Avoid compiler warnings. */
 477         (void)device;
 478
 479         g_datalist_init(&pd_ann_visible);
 480         pdtokens = g_strsplit(pdstring, ",", -1);
 481         pd_opthash = NULL;
 482         pd_name = NULL;
 483
 484         for (pdtok = pdtokens; *pdtok; pdtok++) {
 485                 if (!(pd_opthash = parse_generic_arg(*pdtok))) {
 486                         fprintf(stderr, "Invalid protocol decoder option '%s'.\n", *pdtok);
 487                         goto err_out;
 488                 }
 489
 490                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
 491                 g_hash_table_remove(pd_opthash, "sigrok_key");
 492                 if (!(di = srd_instance_new(pd_name, pd_opthash))) {
 493                         fprintf(stderr, "Failed to instantiate PD %s\n", pd_name);
 494                         goto err_out;
 495                 }
 496                 g_datalist_set_data(&pd_ann_visible, di->instance_id, pd_name);
 497
 498                 /* Any keys left in the options hash are probes, where the key
 499                  * is the probe name as specified in the decoder class, and the
 500                  * value is the probe number i.e. the order in which the PD's
 501                  * incoming samples are arranged. */
 502                 if (srd_instance_set_probes(di, pd_opthash) != SRD_OK)
 503                         goto err_out;
 504                 g_hash_table_destroy(pd_opthash);
 505                 pd_opthash = NULL;
 506         }
 507
 508 err_out:
 509         g_strfreev(pdtokens);
 510         if (pd_opthash)
 511                 g_hash_table_destroy(pd_opthash);
 512         if (pd_name)
 513                 g_free(pd_name);
 514
 515         return 0;
 516 }
 517
 518 void show_pd_annotation(struct srd_proto_data *pdata)
 519 {
 520         int i;
 521         char **annotations;
 522
 523         if (pdata->ann_format != 0) {
 524                 /* CLI only shows the default annotation format. */
 525                 return;
 526         }
 527
 528         if (!g_datalist_get_data(&pd_ann_visible, pdata->pdo->di->instance_id)) {
 529                 /* Not in the list of PDs whose annotations we're showing. */
 530                 return;
 531         }
 532
 533         annotations = pdata->data;
 534         if (opt_loglevel > SR_LOG_WARN)
 535                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
 536         printf("%s: ", pdata->pdo->proto_id);
 537         for (i = 0; annotations[i]; i++)
 538                 printf("\"%s\" ", annotations[i]);
 539         printf("\n");
 540
 541 }
 542
 543 static int select_probes(struct sr_device *device)
 544 {
 545         struct sr_probe *probe;
 546         char **probelist;
 547         int max_probes, i;
 548
 549         if (!opt_probes)
 550                 return SR_OK;
 551
 552         /*
 553          * This only works because a device by default initializes
 554          * and enables all its probes.
 555          */
 556         max_probes = g_slist_length(device->probes);
 557         probelist = parse_probestring(max_probes, opt_probes);
 558         if (!probelist) {
 559                 return SR_ERR;
 560         }
 561
 562         for (i = 0; i < max_probes; i++) {
 563                 if (probelist[i]) {
 564                         sr_device_probe_name(device, i + 1, probelist[i]);
 565                         g_free(probelist[i]);
 566                 } else {
 567                         probe = sr_device_probe_find(device, i + 1);
 568                         probe->enabled = FALSE;
 569                 }
 570         }
 571         g_free(probelist);
 572
 573         return SR_OK;
 574 }
 575
 576 /**
 577  * Return the input file format which the CLI tool should use.
 578  *
 579  * If the user specified -I / --input-format, use that one. Otherwise, try to
 580  * autodetect the format as good as possible. Failing that, return NULL.
 581  *
 582  * @param filename The filename of the input file. Must not be NULL.
 583  * @param opt The -I / --input-file option the user specified (or NULL).
 584  *
 585  * @return A pointer to the 'struct sr_input_format' that should be used,
 586  *         or NULL if no input format was selected or auto-detected.
 587  */
 588 static struct sr_input_format *determine_input_file_format(
 589                         const char *filename, const char *opt)
 590 {
 591         int i;
 592         struct sr_input_format **inputs;
 593
 594         /* If there are no input formats, return NULL right away. */
 595         inputs = sr_input_list();
 596         if (!inputs) {
 597                 fprintf(stderr, "cli: %s: no supported input formats "
 598                         "available", __func__);
 599                 return NULL;
 600         }
 601
 602         /* If the user specified -I / --input-format, use that one. */
 603         if (opt) {
 604                 for (i = 0; inputs[i]; i++) {
 605                         if (strcasecmp(inputs[i]->id, opt_input_format))
 606                                 continue;
 607                         printf("Using user-specified input file format"
 608                                " '%s'.\n", inputs[i]->id);
 609                         return inputs[i];
 610                 }
 611
 612                 /* The user specified an unknown input format, return NULL. */
 613                 fprintf(stderr, "Error: Specified input file format '%s' is "
 614                         "unknown.\n", opt_input_format);
 615                 return NULL;
 616         }
 617
 618         /* Otherwise, try to find an input module that can handle this file. */
 619         for (i = 0; inputs[i]; i++) {
 620                 if (inputs[i]->format_match(filename))
 621                         break;
 622         }
 623
 624         /* Return NULL if no input module wanted to touch this. */
 625         if (!inputs[i]) {
 626                 fprintf(stderr, "Error: No matching input module found.\n");
 627                 return NULL;
 628         }
 629
 630         printf("Using input file format '%s'.\n", inputs[i]->id);
 631         return inputs[i];
 632 }
 633
 634 static void load_input_file_format(void)
 635 {
 636         struct stat st;
 637         struct sr_input *in;
 638         struct sr_input_format *input_format;
 639
 640         input_format = determine_input_file_format(opt_input_file,
 641                                                    opt_input_format);
 642         if (!input_format) {
 643                 fprintf(stderr, "Error: Couldn't detect input file format.\n");
 644                 return;
 645         }
 646
 647         if (stat(opt_input_file, &st) == -1) {
 648                 printf("Failed to load %s: %s\n", opt_input_file,
 649                         strerror(errno));
 650                 exit(1);
 651         }
 652
 653         /* Initialize the input module. */
 654         if (!(in = malloc(sizeof(struct sr_input)))) {
 655                 printf("Failed to allocate input module.\n");
 656                 exit(1);
 657         }
 658         in->format = input_format;
 659         in->param = input_format_param;
 660         if (in->format->init) {
 661                 if (in->format->init(in) != SR_OK) {
 662                         printf("Input format init failed.\n");
 663                         exit(1);
 664                 }
 665         }
 666
 667         if (select_probes(in->vdevice) > 0)
 668             return;
 669
 670         sr_session_new();
 671         sr_session_datafeed_callback_add(datafeed_in);
 672         if (sr_session_device_add(in->vdevice) != SR_OK) {
 673                 printf("Failed to use device.\n");
 674                 sr_session_destroy();
 675                 return;
 676         }
 677
 678         input_format->loadfile(in, opt_input_file);
 679         if (opt_output_file && default_output_format) {
 680                 if (sr_session_save(opt_output_file) != SR_OK)
 681                         printf("Failed to save session.\n");
 682         }
 683         sr_session_destroy();
 684
 685 }
 686
 687 static void load_input_file(void)
 688 {
 689
 690         if (sr_session_load(opt_input_file) == SR_OK) {
 691                 /* sigrok session file */
 692                 sr_session_datafeed_callback_add(datafeed_in);
 693                 sr_session_start();
 694                 sr_session_run();
 695                 sr_session_stop();
 696         }
 697         else {
 698                 /* fall back on input modules */
 699                 load_input_file_format();
 700         }
 701
 702 }
 703
 704 int num_real_devices(void)
 705 {
 706         struct sr_device *device;
 707         GSList *devices, *l;
 708         int num_devices;
 709
 710         num_devices = 0;
 711         devices = sr_device_list();
 712         for (l = devices; l; l = l->next) {
 713                 device = l->data;
 714                 if (!sr_device_has_hwcap(device, SR_HWCAP_DEMO_DEVICE))
 715                         num_devices++;
 716         }
 717
 718         return num_devices;
 719 }
 720
 721 static int set_device_options(struct sr_device *device, GHashTable *args)
 722 {
 723         GHashTableIter iter;
 724         gpointer key, value;
 725         int ret, i;
 726         uint64_t tmp_u64;
 727         gboolean found;
 728         gboolean tmp_bool;
 729
 730         g_hash_table_iter_init(&iter, args);
 731         while (g_hash_table_iter_next(&iter, &key, &value)) {
 732                 found = FALSE;
 733                 for (i = 0; sr_hwcap_options[i].capability; i++) {
 734                         if (strcmp(sr_hwcap_options[i].shortname, key))
 735                                 continue;
 736                         if ((value == NULL) &&
 737                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
 738                                 printf("Option '%s' needs a value.\n", (char *)key);
 739                                 return SR_ERR;
 740                         }
 741                         found = TRUE;
 742                         switch (sr_hwcap_options[i].type) {
 743                         case SR_T_UINT64:
 744                                 ret = sr_parse_sizestring(value, &tmp_u64);
 745                                 if (ret != SR_OK)
 746                                         break;
 747                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 748                                                 sr_hwcap_options[i]. capability, &tmp_u64);
 749                                 break;
 750                         case SR_T_CHAR:
 751                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 752                                                 sr_hwcap_options[i]. capability, value);
 753                                 break;
 754                         case SR_T_BOOL:
 755                                 if (!value)
 756                                         tmp_bool = TRUE;
 757                                 else
 758                                         tmp_bool = sr_parse_boolstring(value);
 759                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 760                                                 sr_hwcap_options[i]. capability,
 761                                                 GINT_TO_POINTER(tmp_bool));
 762                                 break;
 763                         default:
 764                                 ret = SR_ERR;
 765                         }
 766
 767                         if (ret != SR_OK) {
 768                                 printf("Failed to set device option '%s'.\n", (char *)key);
 769                                 return ret;
 770                         }
 771                         else
 772                                 break;
 773                 }
 774                 if (!found) {
 775                         printf("Unknown device option '%s'.\n", (char *) key);
 776                         return SR_ERR;
 777                 }
 778         }
 779
 780         return SR_OK;
 781 }
 782
 783 static void run_session(void)
 784 {
 785         struct sr_device *device;
 786         GHashTable *devargs;
 787         int num_devices, max_probes, *capabilities, i;
 788         uint64_t time_msec;
 789         char **probelist, *devspec;
 790
 791         devargs = NULL;
 792         if (opt_device) {
 793                 devargs = parse_generic_arg(opt_device);
 794                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
 795                 device = parse_devicestring(devspec);
 796                 if (!device) {
 797                         g_warning("Device not found.");
 798                         return;
 799                 }
 800                 g_hash_table_remove(devargs, "sigrok_key");
 801         } else {
 802                 num_devices = num_real_devices();
 803                 if (num_devices == 1) {
 804                         /* No device specified, but there is only one. */
 805                         devargs = NULL;
 806                         device = parse_devicestring("0");
 807                 } else if (num_devices == 0) {
 808                         printf("No devices found.\n");
 809                         return;
 810                 } else {
 811                         printf("%d devices found, please select one.\n", num_devices);
 812                         return;
 813                 }
 814         }
 815
 816         sr_session_new();
 817         sr_session_datafeed_callback_add(datafeed_in);
 818
 819         if (sr_session_device_add(device) != SR_OK) {
 820                 printf("Failed to use device.\n");
 821                 sr_session_destroy();
 822                 return;
 823         }
 824
 825         if (devargs) {
 826                 if (set_device_options(device, devargs) != SR_OK) {
 827                         sr_session_destroy();
 828                         return;
 829                 }
 830                 g_hash_table_destroy(devargs);
 831         }
 832
 833         if (select_probes(device) != SR_OK)
 834             return;
 835
 836         if (opt_continuous) {
 837                 capabilities = device->plugin->get_capabilities();
 838                 if (!sr_find_hwcap(capabilities, SR_HWCAP_CONTINUOUS)) {
 839                         printf("This device does not support continuous sampling.");
 840                         sr_session_destroy();
 841                         return;
 842                 }
 843         }
 844
 845         if (opt_triggers) {
 846                 probelist = sr_parse_triggerstring(device, opt_triggers);
 847                 if (!probelist) {
 848                         sr_session_destroy();
 849                         return;
 850                 }
 851
 852                 max_probes = g_slist_length(device->probes);
 853                 for (i = 0; i < max_probes; i++) {
 854                         if (probelist[i]) {
 855                                 sr_device_trigger_set(device, i + 1, probelist[i]);
 856                                 g_free(probelist[i]);
 857                         }
 858                 }
 859                 g_free(probelist);
 860         }
 861
 862         if (opt_time) {
 863                 time_msec = sr_parse_timestring(opt_time);
 864                 if (time_msec == 0) {
 865                         printf("Invalid time '%s'\n", opt_time);
 866                         sr_session_destroy();
 867                         return;
 868                 }
 869
 870                 capabilities = device->plugin->get_capabilities();
 871                 if (sr_find_hwcap(capabilities, SR_HWCAP_LIMIT_MSEC)) {
 872                         if (device->plugin->set_configuration(device->plugin_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_device_has_hwcap(device, SR_HWCAP_SAMPLERATE)) {
 885                                 const uint64_t *samplerate;
 886
 887                                 sr_device_get_info(device, 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 (device->plugin->set_configuration(device->plugin_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                         || (device->plugin->set_configuration(device->plugin_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 (device->plugin->set_configuration(device->plugin_index,
 917                   SR_HWCAP_PROBECONFIG, (char *)device->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 user_data)
 947 {
 948         /* Avoid compiler warnings. */
 949         (void)log_domain;
 950         (void)user_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_instance *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_set_loglevel(opt_loglevel) != SR_OK) {
 995                 fprintf(stderr, "cli: %s: sr_set_loglevel(%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_set_loglevel(opt_loglevel) != SRD_OK) {
1002                 fprintf(stderr, "cli: %s: srd_set_loglevel(%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() != 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) != 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_instance_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_instance_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_instance_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->instance_id);
1049
1050                         di_from = di_to;
1051                 }
1052                 g_strfreev(pds);
1053         }
1054
1055         if (!opt_format) {
1056                 opt_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_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_format);
1085                 return 1;
1086         }
1087
1088         if (opt_version)
1089                 show_version();
1090         else if (opt_list_devices)
1091                 show_device_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_device)
1097                 show_device_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 }