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(struct sr_device *device)
 130 {
 131         struct sr_device_instance *sdi;
 132
 133         sdi = device->plugin->get_device_info(device->plugin_index, SR_DI_INSTANCE);
 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         struct sr_samplerates *samplerates;
 180         int cap, *capabilities, i;
 181         char *s, *title, *charopts, **stropts;
 182
 183         device = parse_devicestring(opt_device);
 184         if (!device) {
 185                 printf("No such device. Use -D to list all devices.\n");
 186                 return;
 187         }
 188
 189         print_device_line(device);
 190
 191         if ((charopts = (char *)device->plugin->get_device_info(
 192                         device->plugin_index, SR_DI_TRIGGER_TYPES))) {
 193                 printf("Supported triggers: ");
 194                 while (*charopts) {
 195                         printf("%c ", *charopts);
 196                         charopts++;
 197                 }
 198                 printf("\n");
 199         }
 200
 201         title = "Supported options:\n";
 202         capabilities = device->plugin->get_capabilities();
 203         for (cap = 0; capabilities[cap]; cap++) {
 204                 if (!(hwo = sr_find_hwcap_option(capabilities[cap])))
 205                         continue;
 206
 207                 if (title) {
 208                         printf("%s", title);
 209                         title = NULL;
 210                 }
 211
 212                 if (hwo->capability == SR_HWCAP_PATTERN_MODE) {
 213                         printf("    %s", hwo->shortname);
 214                         stropts = (char **)device->plugin->get_device_info(
 215                                         device->plugin_index, SR_DI_PATTERNMODES);
 216                         if (!stropts) {
 217                                 printf("\n");
 218                                 continue;
 219                         }
 220                         printf(" - supported modes:\n");
 221                         for (i = 0; stropts[i]; i++)
 222                                 printf("      %s\n", stropts[i]);
 223                 } else if (hwo->capability == SR_HWCAP_SAMPLERATE) {
 224                         printf("    %s", hwo->shortname);
 225                         /* Supported samplerates */
 226                         samplerates = device->plugin->get_device_info(
 227                                 device->plugin_index, SR_DI_SAMPLERATES);
 228                         if (!samplerates) {
 229                                 printf("\n");
 230                                 continue;
 231                         }
 232
 233                         if (samplerates->step) {
 234                                 /* low */
 235                                 if (!(s = sr_samplerate_string(samplerates->low)))
 236                                         continue;
 237                                 printf(" (%s", s);
 238                                 free(s);
 239                                 /* high */
 240                                 if (!(s = sr_samplerate_string(samplerates->high)))
 241                                         continue;
 242                                 printf(" - %s", s);
 243                                 free(s);
 244                                 /* step */
 245                                 if (!(s = sr_samplerate_string(samplerates->step)))
 246                                         continue;
 247                                 printf(" in steps of %s)\n", s);
 248                                 free(s);
 249                         } else {
 250                                 printf(" - supported samplerates:\n");
 251                                 for (i = 0; samplerates->list[i]; i++) {
 252                                         printf("      %7s\n", sr_samplerate_string(samplerates->list[i]));
 253                                 }
 254                         }
 255                 } else {
 256                         printf("    %s\n", hwo->shortname);
 257                 }
 258         }
 259 }
 260
 261 static void show_pd_detail(void)
 262 {
 263         GSList *l;
 264         struct srd_decoder *dec;
 265         char **pdtokens, **pdtok, **ann, *doc;
 266
 267         pdtokens = g_strsplit(opt_pds, ",", -1);
 268         for (pdtok = pdtokens; *pdtok; pdtok++) {
 269                 if (!(dec = srd_get_decoder_by_id(*pdtok))) {
 270                         printf("Protocol decoder %s not found.", *pdtok);
 271                         return;
 272                 }
 273                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
 274                                 dec->id, dec->name, dec->longname, dec->desc);
 275                 printf("License: %s\n", dec->license);
 276                 if (dec->annotations) {
 277                         printf("Annotations:\n");
 278                         for (l = dec->annotations; l; l = l->next) {
 279                                 ann = l->data;
 280                                 printf("- %s\n  %s\n", ann[0], ann[1]);
 281                         }
 282                 }
 283                 if ((doc = srd_decoder_doc(dec))) {
 284                         printf("Documentation:\n%s\n", doc[0] == '\n' ? doc+1 : doc);
 285                         g_free(doc);
 286                 }
 287         }
 288
 289         g_strfreev(pdtokens);
 290
 291 }
 292
 293 static void datafeed_in(struct sr_device *device, struct sr_datafeed_packet *packet)
 294 {
 295         static struct sr_output *o = NULL;
 296         static int probelist[SR_MAX_NUM_PROBES] = { 0 };
 297         static uint64_t received_samples = 0;
 298         static int unitsize = 0;
 299         static int triggered = 0;
 300         static FILE *outfile = NULL;
 301         struct sr_probe *probe;
 302         struct sr_datafeed_header *header;
 303         struct sr_datafeed_logic *logic;
 304         int num_enabled_probes, sample_size, ret, i;
 305         uint64_t output_len, filter_out_len;
 306         char *output_buf, *filter_out;
 307
 308         /* If the first packet to come in isn't a header, don't even try. */
 309         if (packet->type != SR_DF_HEADER && o == NULL)
 310                 return;
 311
 312         sample_size = -1;
 313         switch (packet->type) {
 314         case SR_DF_HEADER:
 315                 g_message("cli: Received SR_DF_HEADER");
 316                 /* Initialize the output module. */
 317                 if (!(o = malloc(sizeof(struct sr_output)))) {
 318                         printf("Output module malloc failed.\n");
 319                         exit(1);
 320                 }
 321                 o->format = output_format;
 322                 o->device = device;
 323                 o->param = output_format_param;
 324                 if (o->format->init) {
 325                         if (o->format->init(o) != SR_OK) {
 326                                 printf("Output format initialization failed.\n");
 327                                 exit(1);
 328                         }
 329                 }
 330
 331                 header = packet->payload;
 332                 num_enabled_probes = 0;
 333                 for (i = 0; i < header->num_logic_probes; i++) {
 334                         probe = g_slist_nth_data(device->probes, i);
 335                         if (probe->enabled)
 336                                 probelist[num_enabled_probes++] = probe->index;
 337                 }
 338                 /* How many bytes we need to store num_enabled_probes bits */
 339                 unitsize = (num_enabled_probes + 7) / 8;
 340
 341                 outfile = stdout;
 342                 if (opt_output_file) {
 343                         if (default_output_format) {
 344                                 /* output file is in session format, which means we'll
 345                                  * dump everything in the datastore as it comes in,
 346                                  * and save from there after the session. */
 347                                 outfile = NULL;
 348                                 ret = sr_datastore_new(unitsize, &(device->datastore));
 349                                 if (ret != SR_OK) {
 350                                         printf("Failed to create datastore.\n");
 351                                         exit(1);
 352                                 }
 353                         } else {
 354                                 /* saving to a file in whatever format was set
 355                                  * with --format, so all we need is a filehandle */
 356                                 outfile = g_fopen(opt_output_file, "wb");
 357                         }
 358                 }
 359                 if (opt_pds)
 360                         srd_session_start(num_enabled_probes, unitsize,
 361                                         header->samplerate);
 362                 break;
 363         case SR_DF_END:
 364                 g_message("cli: Received SR_DF_END");
 365                 if (!o) {
 366                         g_message("cli: double end!");
 367                         break;
 368                 }
 369                 if (o->format->event) {
 370                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
 371                         if (output_len) {
 372                                 if (outfile)
 373                                         fwrite(output_buf, 1, output_len, outfile);
 374                                 free(output_buf);
 375                                 output_len = 0;
 376                         }
 377                 }
 378                 if (limit_samples && received_samples < limit_samples)
 379                         printf("Device only sent %" PRIu64 " samples.\n",
 380                                received_samples);
 381                 if (opt_continuous)
 382                         printf("Device stopped after %" PRIu64 " samples.\n",
 383                                received_samples);
 384                 sr_session_halt();
 385                 if (outfile && outfile != stdout)
 386                         fclose(outfile);
 387                 free(o);
 388                 o = NULL;
 389                 break;
 390         case SR_DF_TRIGGER:
 391                 g_message("cli: received SR_DF_TRIGGER at %"PRIu64" ms",
 392                                 packet->timeoffset / 1000000);
 393                 if (o->format->event)
 394                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
 395                                          &output_len);
 396                 triggered = 1;
 397                 break;
 398         case SR_DF_LOGIC:
 399                 logic = packet->payload;
 400                 sample_size = logic->unitsize;
 401                 g_message("cli: received SR_DF_LOGIC at %f ms duration %f ms, %"PRIu64" bytes",
 402                                 packet->timeoffset / 1000000.0, packet->duration / 1000000.0,
 403                                 logic->length);
 404                 break;
 405         case SR_DF_ANALOG:
 406                 break;
 407         }
 408
 409         /* not supporting anything but SR_DF_LOGIC for now */
 410
 411         if (sample_size == -1 || logic->length == 0)
 412                 return;
 413
 414         /* Don't store any samples until triggered. */
 415         if (opt_wait_trigger && !triggered)
 416                 return;
 417
 418         if (limit_samples && received_samples >= limit_samples)
 419                 return;
 420
 421         /* TODO: filters only support SR_DF_LOGIC */
 422         ret = sr_filter_probes(sample_size, unitsize, probelist,
 423                                    logic->data, logic->length,
 424                                    &filter_out, &filter_out_len);
 425         if (ret != SR_OK)
 426                 return;
 427
 428         /* what comes out of the filter is guaranteed to be packed into the
 429          * minimum size needed to support the number of samples at this sample
 430          * size. however, the driver may have submitted too much -- cut off
 431          * the buffer of the last packet according to the sample limit.
 432          */
 433         if (limit_samples && (received_samples + logic->length / sample_size >
 434                         limit_samples * sample_size))
 435                 filter_out_len = limit_samples * sample_size - received_samples;
 436
 437         if (device->datastore)
 438                 sr_datastore_put(device->datastore, filter_out,
 439                                  filter_out_len, sample_size, probelist);
 440
 441         if (opt_output_file && default_output_format)
 442                 /* saving to a session file, don't need to do anything else
 443                  * to this data for now. */
 444                 goto cleanup;
 445
 446         if (opt_pds) {
 447                 if (srd_session_feed(received_samples, (uint8_t*)filter_out,
 448                                 filter_out_len) != SRD_OK)
 449                         abort();
 450         } else {
 451                 output_len = 0;
 452                 if (o->format->data && packet->type == o->format->df_type)
 453                         o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
 454                 if (output_len) {
 455                         fwrite(output_buf, 1, output_len, outfile);
 456                         free(output_buf);
 457                 }
 458         }
 459
 460 cleanup:
 461         g_free(filter_out);
 462         received_samples += logic->length / sample_size;
 463
 464 }
 465
 466 /* Register the given PDs for this session.
 467  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
 468  * That will instantiate two SPI decoders on the clock but different data
 469  * lines.
 470  */
 471 static int register_pds(struct sr_device *device, const char *pdstring)
 472 {
 473         GHashTable *pd;
 474         struct srd_decoder_instance *di;
 475         char **pdtokens, **pdtok, *pd_name;
 476
 477         /* Avoid compiler warnings. */
 478         (void)device;
 479
 480         g_datalist_init(&pd_ann_visible);
 481         pdtokens = g_strsplit(pdstring, ",", -1);
 482         pd = NULL;
 483         pd_name = NULL;
 484
 485         for (pdtok = pdtokens; *pdtok; pdtok++) {
 486                 if (!(pd = parse_generic_arg(*pdtok))) {
 487                         fprintf(stderr, "Invalid protocol decoder option '%s'.\n", *pdtok);
 488                         goto err_out;
 489                 }
 490
 491                 pd_name = g_strdup(g_hash_table_lookup(pd, "sigrok_key"));
 492                 g_hash_table_remove(pd, "sigrok_key");
 493                 if (!(di = srd_instance_new(pd_name, pd))) {
 494                         fprintf(stderr, "Failed to instantiate PD %s\n", pd_name);
 495                         goto err_out;
 496                 }
 497                 g_datalist_set_data(&pd_ann_visible, pd_name, pd_name);
 498         }
 499
 500         /* Any keys left in the options hash are probes, where the key
 501          * is the probe name as specified in the decoder class, and the
 502          * value is the probe number i.e. the order in which the PD's
 503          * incoming samples are arranged. */
 504         if (srd_instance_set_probes(di, pd) != SRD_OK)
 505                 return 1;
 506
 507 err_out:
 508         g_strfreev(pdtokens);
 509         if (pd)
 510                 g_hash_table_destroy(pd);
 511         if (pd_name)
 512                 g_free(pd_name);
 513
 514         return 0;
 515 }
 516
 517 void show_pd_annotation(struct srd_proto_data *pdata)
 518 {
 519         int i;
 520         char **annotations;
 521
 522         annotations = pdata->data;
 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->proto_id)) {
 529                 /* not in the list of PDs whose annotations we're showing */
 530                 return;
 531         }
 532
 533         if (opt_loglevel > SR_LOG_WARN)
 534                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
 535         printf("%s: ", pdata->pdo->proto_id);
 536         for (i = 0; annotations[i]; i++)
 537                 printf("\"%s\" ", annotations[i]);
 538         printf("\n");
 539
 540 }
 541
 542 static int select_probes(struct sr_device *device)
 543 {
 544         struct sr_probe *probe;
 545         char **probelist;
 546         int max_probes, i;
 547
 548         if (!opt_probes)
 549                 return SR_OK;
 550
 551         /*
 552          * This only works because a device by default initializes
 553          * and enables all its probes.
 554          */
 555         max_probes = g_slist_length(device->probes);
 556         probelist = parse_probestring(max_probes, opt_probes);
 557         if (!probelist) {
 558                 return SR_ERR;
 559         }
 560
 561         for (i = 0; i < max_probes; i++) {
 562                 if (probelist[i]) {
 563                         sr_device_probe_name(device, i + 1, probelist[i]);
 564                         g_free(probelist[i]);
 565                 } else {
 566                         probe = sr_device_probe_find(device, i + 1);
 567                         probe->enabled = FALSE;
 568                 }
 569         }
 570         g_free(probelist);
 571
 572         return SR_OK;
 573 }
 574
 575 /**
 576  * Return the input file format which the CLI tool should use.
 577  *
 578  * If the user specified -I / --input-format, use that one. Otherwise, try to
 579  * autodetect the format as good as possible. Failing that, return NULL.
 580  *
 581  * @param filename The filename of the input file. Must not be NULL.
 582  * @param opt The -I / --input-file option the user specified (or NULL).
 583  *
 584  * @return A pointer to the 'struct sr_input_format' that should be used,
 585  *         or NULL if no input format was selected or auto-detected.
 586  */
 587 static struct sr_input_format *determine_input_file_format(
 588                         const char *filename, const char *opt)
 589 {
 590         int i;
 591         struct sr_input_format **inputs;
 592
 593         /* If there are no input formats, return NULL right away. */
 594         inputs = sr_input_list();
 595         if (!inputs) {
 596                 fprintf(stderr, "cli: %s: no supported input formats "
 597                         "available", __func__);
 598                 return NULL;
 599         }
 600
 601         /* If the user specified -I / --input-format, use that one. */
 602         if (opt) {
 603                 for (i = 0; inputs[i]; i++) {
 604                         if (strcasecmp(inputs[i]->id, opt_input_format))
 605                                 continue;
 606                         printf("Using user-specified input file format"
 607                                " '%s'.\n", inputs[i]->id);
 608                         return inputs[i];
 609                 }
 610
 611                 /* The user specified an unknown input format, return NULL. */
 612                 fprintf(stderr, "Error: Specified input file format '%s' is "
 613                         "unknown.\n", opt_input_format);
 614                 return NULL;
 615         }
 616
 617         /* Otherwise, try to find an input module that can handle this file. */
 618         for (i = 0; inputs[i]; i++) {
 619                 if (inputs[i]->format_match(filename))
 620                         break;
 621         }
 622
 623         /* Return NULL if no input module wanted to touch this. */
 624         if (!inputs[i]) {
 625                 fprintf(stderr, "Error: No matching input module found.\n");
 626                 return NULL;
 627         }
 628
 629         printf("Using input file format '%s'.\n", inputs[i]->id);
 630         return inputs[i];
 631 }
 632
 633 static void load_input_file_format(void)
 634 {
 635         struct stat st;
 636         struct sr_input *in;
 637         struct sr_input_format *input_format;
 638
 639         input_format = determine_input_file_format(opt_input_file,
 640                                                    opt_input_format);
 641         if (!input_format) {
 642                 fprintf(stderr, "Error: Couldn't detect input file format.\n");
 643                 return;
 644         }
 645
 646         if (stat(opt_input_file, &st) == -1) {
 647                 printf("Failed to load %s: %s\n", opt_input_file,
 648                         strerror(errno));
 649                 exit(1);
 650         }
 651
 652         /* Initialize the input module. */
 653         if (!(in = malloc(sizeof(struct sr_input)))) {
 654                 printf("Failed to allocate input module.\n");
 655                 exit(1);
 656         }
 657         in->format = input_format;
 658         in->param = input_format_param;
 659         if (in->format->init) {
 660                 if (in->format->init(in) != SR_OK) {
 661                         printf("Input format init failed.\n");
 662                         exit(1);
 663                 }
 664         }
 665
 666         if (select_probes(in->vdevice) > 0)
 667             return;
 668
 669         sr_session_new();
 670         sr_session_datafeed_callback_add(datafeed_in);
 671         if (sr_session_device_add(in->vdevice) != SR_OK) {
 672                 printf("Failed to use device.\n");
 673                 sr_session_destroy();
 674                 return;
 675         }
 676
 677         input_format->loadfile(in, opt_input_file);
 678         if (opt_output_file && default_output_format) {
 679                 if (sr_session_save(opt_output_file) != SR_OK)
 680                         printf("Failed to save session.\n");
 681         }
 682         sr_session_destroy();
 683
 684 }
 685
 686 static void load_input_file(void)
 687 {
 688
 689         if (sr_session_load(opt_input_file) == SR_OK) {
 690                 /* sigrok session file */
 691                 sr_session_datafeed_callback_add(datafeed_in);
 692                 sr_session_start();
 693                 sr_session_run();
 694                 sr_session_stop();
 695         }
 696         else {
 697                 /* fall back on input modules */
 698                 load_input_file_format();
 699         }
 700
 701 }
 702
 703 int num_real_devices(void)
 704 {
 705         struct sr_device *device;
 706         GSList *devices, *l;
 707         int num_devices;
 708
 709         num_devices = 0;
 710         devices = sr_device_list();
 711         for (l = devices; l; l = l->next) {
 712                 device = l->data;
 713                 if (!sr_device_has_hwcap(device, SR_HWCAP_DEMO_DEVICE))
 714                         num_devices++;
 715         }
 716
 717         return num_devices;
 718 }
 719
 720 static int set_device_options(struct sr_device *device, GHashTable *args)
 721 {
 722         GHashTableIter iter;
 723         gpointer key, value;
 724         int ret, i;
 725         uint64_t tmp_u64;
 726         gboolean found;
 727         gboolean tmp_bool;
 728
 729         g_hash_table_iter_init(&iter, args);
 730         while (g_hash_table_iter_next(&iter, &key, &value)) {
 731                 found = FALSE;
 732                 for (i = 0; sr_hwcap_options[i].capability; i++) {
 733                         if (strcmp(sr_hwcap_options[i].shortname, key))
 734                                 continue;
 735                         if ((value == NULL) &&
 736                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
 737                                 printf("Option '%s' needs a value.\n", (char *)key);
 738                                 return SR_ERR;
 739                         }
 740                         found = TRUE;
 741                         switch (sr_hwcap_options[i].type) {
 742                         case SR_T_UINT64:
 743                                 ret = sr_parse_sizestring(value, &tmp_u64);
 744                                 if (ret != SR_OK)
 745                                         break;
 746                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 747                                                 sr_hwcap_options[i]. capability, &tmp_u64);
 748                                 break;
 749                         case SR_T_CHAR:
 750                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 751                                                 sr_hwcap_options[i]. capability, value);
 752                                 break;
 753                         case SR_T_BOOL:
 754                                 if (!value)
 755                                         tmp_bool = TRUE;
 756                                 else
 757                                         tmp_bool = sr_parse_boolstring(value);
 758                                 ret = device->plugin-> set_configuration(device-> plugin_index,
 759                                                 sr_hwcap_options[i]. capability,
 760                                                 GINT_TO_POINTER(tmp_bool));
 761                                 break;
 762                         default:
 763                                 ret = SR_ERR;
 764                         }
 765
 766                         if (ret != SR_OK) {
 767                                 printf("Failed to set device option '%s'.\n", (char *)key);
 768                                 return ret;
 769                         }
 770                         else
 771                                 break;
 772                 }
 773                 if (!found) {
 774                         printf("Unknown device option '%s'.\n", (char *) key);
 775                         return SR_ERR;
 776                 }
 777         }
 778
 779         return SR_OK;
 780 }
 781
 782 static void run_session(void)
 783 {
 784         struct sr_device *device;
 785         GHashTable *devargs;
 786         int num_devices, max_probes, *capabilities, i;
 787         uint64_t tmp_u64, time_msec;
 788         char **probelist, *devspec;
 789
 790         devargs = NULL;
 791         if (opt_device) {
 792                 devargs = parse_generic_arg(opt_device);
 793                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
 794                 device = parse_devicestring(devspec);
 795                 if (!device) {
 796                         g_warning("Device not found.");
 797                         return;
 798                 }
 799                 g_hash_table_remove(devargs, "sigrok_key");
 800         } else {
 801                 num_devices = num_real_devices();
 802                 if (num_devices == 1) {
 803                         /* No device specified, but there is only one. */
 804                         devargs = NULL;
 805                         device = parse_devicestring("0");
 806                 } else if (num_devices == 0) {
 807                         printf("No devices found.\n");
 808                         return;
 809                 } else {
 810                         printf("%d devices found, please select one.\n", num_devices);
 811                         return;
 812                 }
 813         }
 814
 815         sr_session_new();
 816         sr_session_datafeed_callback_add(datafeed_in);
 817
 818         if (sr_session_device_add(device) != SR_OK) {
 819                 printf("Failed to use device.\n");
 820                 sr_session_destroy();
 821                 return;
 822         }
 823
 824         if (devargs) {
 825                 if (set_device_options(device, devargs) != SR_OK) {
 826                         sr_session_destroy();
 827                         return;
 828                 }
 829                 g_hash_table_destroy(devargs);
 830         }
 831
 832         if (select_probes(device) != SR_OK)
 833             return;
 834
 835         if (opt_continuous) {
 836                 capabilities = device->plugin->get_capabilities();
 837                 if (!sr_find_hwcap(capabilities, SR_HWCAP_CONTINUOUS)) {
 838                         printf("This device does not support continuous sampling.");
 839                         sr_session_destroy();
 840                         return;
 841                 }
 842         }
 843
 844         if (opt_triggers) {
 845                 probelist = sr_parse_triggerstring(device, opt_triggers);
 846                 if (!probelist) {
 847                         sr_session_destroy();
 848                         return;
 849                 }
 850
 851                 max_probes = g_slist_length(device->probes);
 852                 for (i = 0; i < max_probes; i++) {
 853                         if (probelist[i]) {
 854                                 sr_device_trigger_set(device, i + 1, probelist[i]);
 855                                 g_free(probelist[i]);
 856                         }
 857                 }
 858                 g_free(probelist);
 859         }
 860
 861         if (opt_time) {
 862                 time_msec = sr_parse_timestring(opt_time);
 863                 if (time_msec == 0) {
 864                         printf("Invalid time '%s'\n", opt_time);
 865                         sr_session_destroy();
 866                         return;
 867                 }
 868
 869                 capabilities = device->plugin->get_capabilities();
 870                 if (sr_find_hwcap(capabilities, SR_HWCAP_LIMIT_MSEC)) {
 871                         if (device->plugin->set_configuration(device->plugin_index,
 872                                                           SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
 873                                 printf("Failed to configure time limit.\n");
 874                                 sr_session_destroy();
 875                                 return;
 876                         }
 877                 }
 878                 else {
 879                         /* time limit set, but device doesn't support this...
 880                          * convert to samples based on the samplerate.
 881                          */
 882                         limit_samples = 0;
 883                         if (sr_device_has_hwcap(device, SR_HWCAP_SAMPLERATE)) {
 884                                 tmp_u64 = *((uint64_t *) device->plugin->get_device_info(
 885                                                 device->plugin_index, SR_DI_CUR_SAMPLERATE));
 886                                 limit_samples = tmp_u64 * time_msec / (uint64_t) 1000;
 887                         }
 888                         if (limit_samples == 0) {
 889                                 printf("Not enough time at this samplerate.\n");
 890                                 sr_session_destroy();
 891                                 return;
 892                         }
 893
 894                         if (device->plugin->set_configuration(device->plugin_index,
 895                                                   SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
 896                                 printf("Failed to configure time-based sample limit.\n");
 897                                 sr_session_destroy();
 898                                 return;
 899                         }
 900                 }
 901         }
 902
 903         if (opt_samples) {
 904                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
 905                         || (device->plugin->set_configuration(device->plugin_index,
 906                                         SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
 907                         printf("Failed to configure sample limit.\n");
 908                         sr_session_destroy();
 909                         return;
 910                 }
 911         }
 912
 913         if (device->plugin->set_configuration(device->plugin_index,
 914                   SR_HWCAP_PROBECONFIG, (char *)device->probes) != SR_OK) {
 915                 printf("Failed to configure probes.\n");
 916                 sr_session_destroy();
 917                 return;
 918         }
 919
 920         if (sr_session_start() != SR_OK) {
 921                 printf("Failed to start session.\n");
 922                 sr_session_destroy();
 923                 return;
 924         }
 925
 926         if (opt_continuous)
 927                 add_anykey();
 928
 929         sr_session_run();
 930
 931         if (opt_continuous)
 932                 clear_anykey();
 933
 934         if (opt_output_file && default_output_format) {
 935                 if (sr_session_save(opt_output_file) != SR_OK)
 936                         printf("Failed to save session.\n");
 937         }
 938         sr_session_destroy();
 939
 940 }
 941
 942 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
 943                    const gchar *message, gpointer user_data)
 944 {
 945         /* Avoid compiler warnings. */
 946         (void)log_domain;
 947         (void)user_data;
 948
 949         /*
 950          * All messages, warnings, errors etc. go to stderr (not stdout) in
 951          * order to not mess up the CLI tool data output, e.g. VCD output.
 952          */
 953         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_WARNING)) {
 954                 fprintf(stderr, "%s\n", message);
 955                 fflush(stderr);
 956         } else {
 957                 if ((log_level & G_LOG_LEVEL_MESSAGE && debug == 1)
 958                     || debug == 2) {
 959                         printf("%s\n", message);
 960                         fflush(stderr);
 961                 }
 962         }
 963 }
 964
 965 int main(int argc, char **argv)
 966 {
 967         GOptionContext *context;
 968         GError *error;
 969         GHashTable *fmtargs;
 970         GHashTableIter iter;
 971         gpointer key, value;
 972         struct sr_output_format **outputs;
 973         struct srd_decoder_instance *di_from, *di_to;
 974         int i, ret;
 975         char *fmtspec, **pds;
 976
 977         g_log_set_default_handler(logger, NULL);
 978         if (getenv("SIGROK_DEBUG"))
 979                 debug = strtol(getenv("SIGROK_DEBUG"), NULL, 10);
 980
 981         error = NULL;
 982         context = g_option_context_new(NULL);
 983         g_option_context_add_main_entries(context, optargs, NULL);
 984
 985         if (!g_option_context_parse(context, &argc, &argv, &error)) {
 986                 g_warning("%s", error->message);
 987                 return 1;
 988         }
 989
 990         /* Set the loglevel (amount of messages to output) for libsigrok. */
 991         if (sr_set_loglevel(opt_loglevel) != SR_OK) {
 992                 fprintf(stderr, "cli: %s: sr_set_loglevel(%d) failed\n",
 993                         __func__, opt_loglevel);
 994                 return 1;
 995         }
 996
 997         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
 998         if (srd_set_loglevel(opt_loglevel) != SRD_OK) {
 999                 fprintf(stderr, "cli: %s: srd_set_loglevel(%d) failed\n",
1000                         __func__, opt_loglevel);
1001                 return 1;
1002         }
1003
1004         if (sr_init() != SR_OK)
1005                 return 1;
1006
1007         if (opt_pds) {
1008                 if (srd_init() != SRD_OK) {
1009                         printf("Failed to initialize sigrokdecode\n");
1010                         return 1;
1011                 }
1012                 if (register_pds(NULL, opt_pds) != 0) {
1013                         printf("Failed to register protocol decoders\n");
1014                         return 1;
1015                 }
1016                 if (srd_register_callback(SRD_OUTPUT_ANN,
1017                                 show_pd_annotation) != SRD_OK) {
1018                         printf("Failed to register protocol decoder callback\n");
1019                         return 1;
1020                 }
1021         }
1022
1023         if (opt_pd_stack) {
1024                 pds = g_strsplit(opt_pd_stack, ":", 0);
1025                 if (g_strv_length(pds) < 2) {
1026                         printf("Specify at least two protocol decoders to stack.\n");
1027                         return 1;
1028                 }
1029
1030                 if (!(di_from = srd_instance_find(pds[0]))) {
1031                         printf("Cannot stack protocol decoder '%s': instance not found.\n", pds[0]);
1032                         return 1;
1033                 }
1034                 for (i = 1; pds[i]; i++) {
1035                         if (!(di_to = srd_instance_find(pds[i]))) {
1036                                 printf("Cannot stack protocol decoder '%s': instance not found.\n", pds[i]);
1037                                 return 1;
1038                         }
1039                         if ((ret = srd_instance_stack(di_from, di_to) != SRD_OK))
1040                                 return ret;
1041
1042                         /* Don't show annotation from this PD. Only the last PD in
1043                          * the stack will be left on the annotation list.
1044                          */
1045                         g_datalist_remove_data(&pd_ann_visible, di_from->instance_id);
1046
1047                         di_from = di_to;
1048                 }
1049                 g_strfreev(pds);
1050         }
1051
1052         if (!opt_format) {
1053                 opt_format = DEFAULT_OUTPUT_FORMAT;
1054                 /* we'll need to remember this so when saving to a file
1055                  * later, sigrok session format will be used.
1056                  */
1057                 default_output_format = TRUE;
1058         }
1059         fmtargs = parse_generic_arg(opt_format);
1060         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1061         if (!fmtspec) {
1062                 printf("Invalid output format.\n");
1063                 return 1;
1064         }
1065         outputs = sr_output_list();
1066         for (i = 0; outputs[i]; i++) {
1067                 if (strcmp(outputs[i]->id, fmtspec))
1068                         continue;
1069                 g_hash_table_remove(fmtargs, "sigrok_key");
1070                 output_format = outputs[i];
1071                 g_hash_table_iter_init(&iter, fmtargs);
1072                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1073                         /* only supporting one parameter per output module
1074                          * for now, and only its value */
1075                         output_format_param = g_strdup(value);
1076                         break;
1077                 }
1078                 break;
1079         }
1080         if (!output_format) {
1081                 printf("invalid output format %s\n", opt_format);
1082                 return 1;
1083         }
1084
1085         if (opt_version)
1086                 show_version();
1087         else if (opt_list_devices)
1088                 show_device_list();
1089         else if (opt_input_file)
1090                 load_input_file();
1091         else if (opt_samples || opt_time || opt_continuous)
1092                 run_session();
1093         else if (opt_device)
1094                 show_device_detail();
1095         else if (opt_pds)
1096                 show_pd_detail();
1097         else
1098                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1099
1100         if (opt_pds)
1101                 srd_exit();
1102
1103         g_option_context_free(context);
1104         g_hash_table_destroy(fmtargs);
1105         sr_exit();
1106
1107         return 0;
1108 }