Allow setting samplerate when reading binary files
[sigrok:sigrok.git] / sigrok-cli / sigrok-cli.c
1 /*
2  * This file is part of the sigrok project.
3  *
4  * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19
20 #include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <unistd.h>
24 #include <string.h>
25 #include <time.h>
26 #include <sys/time.h>
27 #include <inttypes.h>
28 #include <sys/types.h>
29 #include <sys/stat.h>
30 #include <errno.h>
31 #include <glib.h>
32 #include <glib/gstdio.h>
33 #include <libsigrok/libsigrok.h>
34 #include "sigrok-cli.h"
35 #include "config.h"
36
37 #define DEFAULT_OUTPUT_FORMAT "bits:width=64"
38
39 extern struct sr_hwcap_option sr_hwcap_options[];
40
41 static uint64_t limit_samples = 0;
42 static uint64_t limit_frames = 0;
43 static struct sr_output_format *output_format = NULL;
44 static int default_output_format = FALSE;
45 static char *output_format_param = NULL;
46 static GHashTable *pd_ann_visible = NULL;
47
48 static gboolean opt_version = FALSE;
49 static gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */
50 static gboolean opt_list_devs = FALSE;
51 static gboolean opt_wait_trigger = FALSE;
52 static gchar *opt_input_file = NULL;
53 static gchar *opt_output_file = NULL;
54 static gchar *opt_dev = NULL;
55 static gchar *opt_probes = NULL;
56 static gchar *opt_triggers = NULL;
57 static gchar *opt_pds = NULL;
58 static gchar *opt_pd_stack = NULL;
59 static gchar *opt_pd_annotations = NULL;
60 static gchar *opt_input_format = NULL;
61 static gchar *opt_output_format = NULL;
62 static gchar *opt_time = NULL;
63 static gchar *opt_samples = NULL;
64 static gchar *opt_frames = NULL;
65 static gchar *opt_continuous = NULL;
66
67 static GOptionEntry optargs[] = {
68         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
69                         "Show version and support list", NULL},
70         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
71                         "Set libsigrok/libsigrokdecode loglevel", NULL},
72         {"list-devices", 'D', 0, G_OPTION_ARG_NONE, &opt_list_devs,
73                         "Scan for devices", NULL},
74         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev,
75                         "Use specified device", NULL},
76         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
77                         "Load input from file", NULL},
78         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
79                         "Input format", NULL},
80         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
81                         "Save output to file", NULL},
82         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
83                         "Output format", NULL},
84         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
85                         "Probes to use", NULL},
86         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
87                         "Trigger configuration", NULL},
88         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
89                         "Wait for trigger", NULL},
90         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds,
91                         "Protocol decoders to run", NULL},
92         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
93                         "Protocol decoder stack", NULL},
94         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
95                         "Protocol decoder annotation(s) to show", NULL},
96         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
97                         "How long to sample (ms)", NULL},
98         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
99                         "Number of samples to acquire", NULL},
100         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
101                         "Number of frames to acquire", NULL},
102         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
103                         "Sample continuously", NULL},
104         {NULL, 0, 0, 0, NULL, NULL, NULL}
105 };
106
107 static void show_version(void)
108 {
109         GSList *l;
110         struct sr_dev_driver **drivers;
111         struct sr_input_format **inputs;
112         struct sr_output_format **outputs;
113         struct srd_decoder *dec;
114         int i;
115
116         printf("sigrok-cli %s\n\n", VERSION);
117
118         printf("Using libsigrok %s (lib version %s).\n",
119                sr_package_version_string_get(), sr_lib_version_string_get());
120         printf("Using libsigrokdecode %s (lib version %s).\n\n",
121                srd_package_version_string_get(), srd_lib_version_string_get());
122
123         printf("Supported hardware drivers:\n");
124         drivers = sr_driver_list();
125         for (i = 0; drivers[i]; i++) {
126                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
127         }
128         printf("\n");
129
130         printf("Supported input formats:\n");
131         inputs = sr_input_list();
132         for (i = 0; inputs[i]; i++)
133                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
134         printf("\n");
135
136         printf("Supported output formats:\n");
137         outputs = sr_output_list();
138         for (i = 0; outputs[i]; i++)
139                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
140         printf("\n");
141
142         if (srd_init(NULL) == SRD_OK) {
143                 printf("Supported protocol decoders:\n");
144                 srd_decoder_load_all();
145                 for (l = srd_decoder_list(); l; l = l->next) {
146                         dec = l->data;
147                         printf("  %-20s %s\n", dec->id, dec->longname);
148                         /* Print protocol description upon "-l 3" or higher. */
149                         if (opt_loglevel >= SR_LOG_INFO)
150                                 printf("  %-20s %s\n", "", dec->desc);
151                 }
152                 srd_exit();
153         }
154         printf("\n");
155 }
156
157 static void print_dev_line(const struct sr_dev *dev)
158 {
159         const struct sr_dev_inst *sdi;
160
161         sr_dev_info_get(dev, SR_DI_INST, (const void **)&sdi);
162
163         if (sdi->vendor && sdi->vendor[0])
164                 printf("%s ", sdi->vendor);
165         if (sdi->model && sdi->model[0])
166                 printf("%s ", sdi->model);
167         if (sdi->version && sdi->version[0])
168                 printf("%s ", sdi->version);
169         if (dev->probes)
170                 printf("with %d probes", g_slist_length(dev->probes));
171         printf("\n");
172 }
173
174 static void show_dev_list(void)
175 {
176         struct sr_dev *dev, *demo_dev;
177         GSList *devs, *l;
178         int devcnt;
179
180         devcnt = 0;
181         devs = sr_dev_list();
182
183         if (g_slist_length(devs) == 0)
184                 return;
185
186         printf("The following devices were found:\nID    Device\n");
187         demo_dev = NULL;
188         for (l = devs; l; l = l->next) {
189                 dev = l->data;
190                 if (sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV)) {
191                         demo_dev = dev;
192                         continue;
193                 }
194                 printf("%-3d   ", devcnt++);
195                 print_dev_line(dev);
196         }
197         if (demo_dev) {
198                 printf("demo  ");
199                 print_dev_line(demo_dev);
200         }
201 }
202
203 static void show_dev_detail(void)
204 {
205         struct sr_dev *dev;
206         const struct sr_hwcap_option *hwo;
207         const struct sr_samplerates *samplerates;
208         struct sr_rational *rationals;
209         uint64_t *integers;
210         const int *hwcaps;
211         int cap, i;
212         char *s, *title;
213         const char *charopts, **stropts;
214
215         dev = parse_devstring(opt_dev);
216         if (!dev) {
217                 printf("No such device. Use -D to list all devices.\n");
218                 return;
219         }
220
221         print_dev_line(dev);
222
223         if (sr_dev_info_get(dev, SR_DI_TRIGGER_TYPES,
224                                         (const void **)&charopts) == SR_OK) {
225                 printf("Supported triggers: ");
226                 while (*charopts) {
227                         printf("%c ", *charopts);
228                         charopts++;
229                 }
230                 printf("\n");
231         }
232
233         title = "Supported options:\n";
234         hwcaps = dev->driver->hwcap_get_all();
235         for (cap = 0; hwcaps[cap]; cap++) {
236                 if (!(hwo = sr_hw_hwcap_get(hwcaps[cap])))
237                         continue;
238
239                 if (title) {
240                         printf("%s", title);
241                         title = NULL;
242                 }
243
244                 if (hwo->hwcap == SR_HWCAP_PATTERN_MODE) {
245                         /* Pattern generator modes */
246                         printf("    %s", hwo->shortname);
247                         if (sr_dev_info_get(dev, SR_DI_PATTERNS,
248                                         (const void **)&stropts) == SR_OK) {
249                                 printf(" - supported patterns:\n");
250                                 for (i = 0; stropts[i]; i++)
251                                         printf("      %s\n", stropts[i]);
252                         } else {
253                                 printf("\n");
254                         }
255
256                 } else if (hwo->hwcap == SR_HWCAP_SAMPLERATE) {
257                         /* Supported samplerates */
258                         printf("    %s", hwo->shortname);
259                         if (sr_dev_info_get(dev, SR_DI_SAMPLERATES,
260                                         (const void **)&samplerates) != SR_OK) {
261                                 printf("\n");
262                                 continue;
263                         }
264                         if (samplerates->step) {
265                                 /* low */
266                                 if (!(s = sr_samplerate_string(samplerates->low)))
267                                         continue;
268                                 printf(" (%s", s);
269                                 g_free(s);
270                                 /* high */
271                                 if (!(s = sr_samplerate_string(samplerates->high)))
272                                         continue;
273                                 printf(" - %s", s);
274                                 g_free(s);
275                                 /* step */
276                                 if (!(s = sr_samplerate_string(samplerates->step)))
277                                         continue;
278                                 printf(" in steps of %s)\n", s);
279                                 g_free(s);
280                         } else {
281                                 printf(" - supported samplerates:\n");
282                                 for (i = 0; samplerates->list[i]; i++)
283                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
284                         }
285
286                 } else if (hwo->hwcap == SR_HWCAP_BUFFERSIZE) {
287                         /* Supported buffer sizes */
288                         printf("    %s", hwo->shortname);
289                         if (sr_dev_info_get(dev, SR_DI_BUFFERSIZES,
290                                         (const void **)&integers) != SR_OK) {
291                                 printf("\n");
292                                 continue;
293                         }
294                         printf(" - supported buffer sizes:\n");
295                         for (i = 0; integers[i]; i++)
296                                 printf("      %"PRIu64"\n", integers[i]);
297
298                 } else if (hwo->hwcap == SR_HWCAP_TIMEBASE) {
299                         /* Supported time bases */
300                         printf("    %s", hwo->shortname);
301                         if (sr_dev_info_get(dev, SR_DI_TIMEBASES,
302                                         (const void **)&rationals) != SR_OK) {
303                                 printf("\n");
304                                 continue;
305                         }
306                         printf(" - supported time bases:\n");
307                         for (i = 0; rationals[i].p && rationals[i].q; i++)
308                                 printf("      %s\n", sr_period_string(
309                                                 rationals[i].p * rationals[i].q));
310
311                 } else if (hwo->hwcap == SR_HWCAP_TRIGGER_SOURCE) {
312                         /* Supported trigger sources */
313                         printf("    %s", hwo->shortname);
314                         if (sr_dev_info_get(dev, SR_DI_TRIGGER_SOURCES,
315                                         (const void **)&stropts) != SR_OK) {
316                                 printf("\n");
317                                 continue;
318                         }
319                         printf(" - supported trigger sources:\n");
320                         for (i = 0; stropts[i]; i++)
321                                 printf("      %s\n", stropts[i]);
322
323                 } else if (hwo->hwcap == SR_HWCAP_FILTER) {
324                         /* Supported trigger sources */
325                         printf("    %s", hwo->shortname);
326                         if (sr_dev_info_get(dev, SR_DI_FILTERS,
327                                         (const void **)&stropts) != SR_OK) {
328                                 printf("\n");
329                                 continue;
330                         }
331                         printf(" - supported filter targets:\n");
332                         for (i = 0; stropts[i]; i++)
333                                 printf("      %s\n", stropts[i]);
334
335                 } else if (hwo->hwcap == SR_HWCAP_VDIV) {
336                         /* Supported volts/div values */
337                         printf("    %s", hwo->shortname);
338                         if (sr_dev_info_get(dev, SR_DI_VDIVS,
339                                         (const void **)&rationals) != SR_OK) {
340                                 printf("\n");
341                                 continue;
342                         }
343                         printf(" - supported volts/div:\n");
344                         for (i = 0; rationals[i].p && rationals[i].q; i++)
345                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
346
347                 } else if (hwo->hwcap == SR_HWCAP_COUPLING) {
348                         /* Supported coupling settings */
349                         printf("    %s", hwo->shortname);
350                         if (sr_dev_info_get(dev, SR_DI_COUPLING,
351                                         (const void **)&stropts) != SR_OK) {
352                                 printf("\n");
353                                 continue;
354                         }
355                         printf(" - supported coupling options:\n");
356                         for (i = 0; stropts[i]; i++)
357                                 printf("      %s\n", stropts[i]);
358
359                 } else {
360                         /* Everything else */
361                         printf("    %s\n", hwo->shortname);
362                 }
363         }
364 }
365
366 static void show_pd_detail(void)
367 {
368         GSList *l;
369         struct srd_decoder *dec;
370         char **pdtokens, **pdtok, **ann, *doc;
371         struct srd_probe *p;
372
373         pdtokens = g_strsplit(opt_pds, ",", -1);
374         for (pdtok = pdtokens; *pdtok; pdtok++) {
375                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
376                         printf("Protocol decoder %s not found.\n", *pdtok);
377                         return;
378                 }
379                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
380                                 dec->id, dec->name, dec->longname, dec->desc);
381                 printf("License: %s\n", dec->license);
382                 printf("Annotations:\n");
383                 if (dec->annotations) {
384                         for (l = dec->annotations; l; l = l->next) {
385                                 ann = l->data;
386                                 printf("- %s\n  %s\n", ann[0], ann[1]);
387                         }
388                 } else {
389                         printf("None.\n");
390                 }
391                 /* TODO: Print supported decoder options. */
392                 printf("Required probes:\n");
393                 if (dec->probes) {
394                         for (l = dec->probes; l; l = l->next) {
395                                 p = l->data;
396                                 printf("- %s (%s): %s\n",
397                                        p->name, p->id, p->desc);
398                         }
399                 } else {
400                         printf("None.\n");
401                 }
402                 printf("Optional probes:\n");
403                 if (dec->opt_probes) {
404                         for (l = dec->opt_probes; l; l = l->next) {
405                                 p = l->data;
406                                 printf("- %s (%s): %s\n",
407                                        p->name, p->id, p->desc);
408                         }
409                 } else {
410                         printf("None.\n");
411                 }
412                 if ((doc = srd_decoder_doc_get(dec))) {
413                         printf("Documentation:\n%s\n",
414                                doc[0] == '\n' ? doc + 1 : doc);
415                         g_free(doc);
416                 }
417         }
418
419         g_strfreev(pdtokens);
420 }
421
422 static void datafeed_in(struct sr_dev *dev, struct sr_datafeed_packet *packet)
423 {
424         static struct sr_output *o = NULL;
425         static int logic_probelist[SR_MAX_NUM_PROBES] = { 0 };
426         static struct sr_probe *analog_probelist[SR_MAX_NUM_PROBES];
427         static uint64_t received_samples = 0;
428         static int unitsize = 0;
429         static int triggered = 0;
430         static FILE *outfile = NULL;
431         static int num_analog_probes = 0;
432         struct sr_probe *probe;
433         struct sr_datafeed_logic *logic;
434         struct sr_datafeed_meta_logic *meta_logic;
435         struct sr_datafeed_analog *analog;
436         struct sr_datafeed_meta_analog *meta_analog;
437         static int num_enabled_analog_probes = 0;
438         int num_enabled_probes, sample_size, ret, i;
439         uint64_t output_len, filter_out_len;
440         uint8_t *output_buf, *filter_out;
441
442         /* If the first packet to come in isn't a header, don't even try. */
443         if (packet->type != SR_DF_HEADER && o == NULL)
444                 return;
445
446         sample_size = -1;
447         switch (packet->type) {
448         case SR_DF_HEADER:
449                 g_debug("cli: Received SR_DF_HEADER");
450                 /* Initialize the output module. */
451                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
452                         g_critical("Output module malloc failed.");
453                         exit(1);
454                 }
455                 o->format = output_format;
456                 o->dev = dev;
457                 o->param = output_format_param;
458                 if (o->format->init) {
459                         if (o->format->init(o) != SR_OK) {
460                                 g_critical("Output format initialization failed.");
461                                 exit(1);
462                         }
463                 }
464                 break;
465
466         case SR_DF_END:
467                 g_debug("cli: Received SR_DF_END");
468                 if (!o) {
469                         g_debug("cli: double end!");
470                         break;
471                 }
472                 if (o->format->event) {
473                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
474                         if (output_buf) {
475                                 if (outfile)
476                                         fwrite(output_buf, 1, output_len, outfile);
477                                 g_free(output_buf);
478                                 output_len = 0;
479                         }
480                 }
481                 if (limit_samples && received_samples < limit_samples)
482                         g_warning("Device only sent %" PRIu64 " samples.",
483                                received_samples);
484                 if (opt_continuous)
485                         g_warning("Device stopped after %" PRIu64 " samples.",
486                                received_samples);
487                 sr_session_stop();
488                 if (outfile && outfile != stdout)
489                         fclose(outfile);
490                 g_free(o);
491                 o = NULL;
492                 break;
493
494         case SR_DF_TRIGGER:
495                 g_debug("cli: received SR_DF_TRIGGER");
496                 if (o->format->event)
497                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
498                                          &output_len);
499                 triggered = 1;
500                 break;
501
502         case SR_DF_META_LOGIC:
503                 g_message("cli: Received SR_DF_META_LOGIC");
504                 meta_logic = packet->payload;
505                 num_enabled_probes = 0;
506                 for (i = 0; i < meta_logic->num_probes; i++) {
507                         probe = g_slist_nth_data(dev->probes, i);
508                         if (probe->enabled)
509                                 logic_probelist[num_enabled_probes++] = probe->index;
510                 }
511                 /* How many bytes we need to store num_enabled_probes bits */
512                 unitsize = (num_enabled_probes + 7) / 8;
513
514                 outfile = stdout;
515                 if (opt_output_file) {
516                         if (default_output_format) {
517                                 /* output file is in session format, which means we'll
518                                  * dump everything in the datastore as it comes in,
519                                  * and save from there after the session. */
520                                 outfile = NULL;
521                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
522                                 if (ret != SR_OK) {
523                                         printf("Failed to create datastore.\n");
524                                         exit(1);
525                                 }
526                         } else {
527                                 /* saving to a file in whatever format was set
528                                  * with --format, so all we need is a filehandle */
529                                 outfile = g_fopen(opt_output_file, "wb");
530                         }
531                 }
532                 if (opt_pds)
533                         srd_session_start(num_enabled_probes, unitsize,
534                                         meta_logic->samplerate);
535                 break;
536
537         case SR_DF_LOGIC:
538                 logic = packet->payload;
539                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
540                 sample_size = logic->unitsize;
541                 if (logic->length == 0)
542                         break;
543
544                 /* Don't store any samples until triggered. */
545                 if (opt_wait_trigger && !triggered)
546                         break;
547
548                 if (limit_samples && received_samples >= limit_samples)
549                         break;
550
551                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
552                                            logic->data, logic->length,
553                                            &filter_out, &filter_out_len);
554                 if (ret != SR_OK)
555                         break;
556
557                 /* what comes out of the filter is guaranteed to be packed into the
558                  * minimum size needed to support the number of samples at this sample
559                  * size. however, the driver may have submitted too much -- cut off
560                  * the buffer of the last packet according to the sample limit.
561                  */
562                 if (limit_samples && (received_samples + logic->length / sample_size >
563                                 limit_samples * sample_size))
564                         filter_out_len = limit_samples * sample_size - received_samples;
565
566                 if (dev->datastore)
567                         sr_datastore_put(dev->datastore, filter_out,
568                                          filter_out_len, sample_size, logic_probelist);
569
570                 if (opt_output_file && default_output_format)
571                         /* saving to a session file, don't need to do anything else
572                          * to this data for now. */
573                         goto cleanup;
574
575                 if (opt_pds) {
576                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
577                                         filter_out_len) != SRD_OK)
578                                 sr_session_stop();
579                 } else {
580                         output_len = 0;
581                         if (o->format->data && packet->type == o->format->df_type)
582                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
583                         if (output_buf) {
584                                 fwrite(output_buf, 1, output_len, outfile);
585                                 fflush(outfile);
586                                 g_free(output_buf);
587                         }
588                 }
589
590                 cleanup:
591                 g_free(filter_out);
592                 received_samples += logic->length / sample_size;
593                 break;
594
595         case SR_DF_META_ANALOG:
596                 g_message("cli: Received SR_DF_META_ANALOG");
597                 meta_analog = packet->payload;
598                 num_analog_probes = meta_analog->num_probes;
599                 num_enabled_analog_probes = 0;
600                 for (i = 0; i < num_analog_probes; i++) {
601                         probe = g_slist_nth_data(dev->probes, i);
602                         if (probe->enabled)
603                                 analog_probelist[num_enabled_analog_probes++] = probe;
604                 }
605
606                 outfile = stdout;
607                 if (opt_output_file) {
608                         if (default_output_format) {
609                                 /* output file is in session format, which means we'll
610                                  * dump everything in the datastore as it comes in,
611                                  * and save from there after the session. */
612                                 outfile = NULL;
613                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
614                                 if (ret != SR_OK) {
615                                         printf("Failed to create datastore.\n");
616                                         exit(1);
617                                 }
618                         } else {
619                                 /* saving to a file in whatever format was set
620                                  * with --format, so all we need is a filehandle */
621                                 outfile = g_fopen(opt_output_file, "wb");
622                         }
623                 }
624                 break;
625
626         case SR_DF_ANALOG:
627                 analog = packet->payload;
628                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
629                 if (analog->num_samples == 0)
630                         break;
631
632                 if (limit_samples && received_samples >= limit_samples)
633                         break;
634
635                 if (o->format->data && packet->type == o->format->df_type) {
636                         o->format->data(o, (const uint8_t *)analog->data,
637                                         analog->num_samples * sizeof(float),
638                                         &output_buf, &output_len);
639                         if (output_buf) {
640                                 fwrite(output_buf, 1, output_len, outfile);
641                                 fflush(outfile);
642                                 g_free(output_buf);
643                         }
644                 }
645
646                 received_samples += analog->num_samples;
647                 break;
648
649         case SR_DF_FRAME_BEGIN:
650                 g_debug("cli: received SR_DF_FRAME_BEGIN");
651                 if (o->format->event) {
652                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
653                                          &output_len);
654                         if (output_buf) {
655                                 fwrite(output_buf, 1, output_len, outfile);
656                                 fflush(outfile);
657                                 g_free(output_buf);
658                         }
659                 }
660                 break;
661
662         case SR_DF_FRAME_END:
663                 g_debug("cli: received SR_DF_FRAME_END");
664                 if (o->format->event) {
665                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
666                                          &output_len);
667                         if (output_buf) {
668                                 fwrite(output_buf, 1, output_len, outfile);
669                                 fflush(outfile);
670                                 g_free(output_buf);
671                         }
672                 }
673                 break;
674
675         default:
676                 g_message("received unknown packet type %d", packet->type);
677         }
678
679 }
680
681 /* Register the given PDs for this session.
682  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
683  * That will instantiate two SPI decoders on the clock but different data
684  * lines.
685  */
686 static int register_pds(struct sr_dev *dev, const char *pdstring)
687 {
688         GHashTable *pd_opthash;
689         struct srd_decoder_inst *di;
690         int ret;
691         char **pdtokens, **pdtok, *pd_name;
692
693         /* Avoid compiler warnings. */
694         (void)dev;
695
696         ret = 0;
697         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
698                         g_free, NULL);
699         pd_name = NULL;
700         pd_opthash = NULL;
701         pdtokens = g_strsplit(pdstring, ",", 0);
702         for (pdtok = pdtokens; *pdtok; pdtok++) {
703                 if (!(pd_opthash = parse_generic_arg(*pdtok))) {
704                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
705                         goto err_out;
706                 }
707
708                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
709                 g_hash_table_remove(pd_opthash, "sigrok_key");
710                 if (srd_decoder_load(pd_name) != SRD_OK) {
711                         g_critical("Failed to load protocol decoder %s.", pd_name);
712                         ret = 1;
713                         goto err_out;
714                 }
715                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
716                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
717                         ret = 1;
718                         goto err_out;
719                 }
720
721                 /* If no annotation list was specified, add them all in now.
722                  * This will be pared down later to leave only the last PD
723                  * in the stack.
724                  */
725                 if (!opt_pd_annotations)
726                         g_hash_table_insert(pd_ann_visible,
727                                             g_strdup(di->inst_id), NULL);
728
729                 /* Any keys left in the options hash are probes, where the key
730                  * is the probe name as specified in the decoder class, and the
731                  * value is the probe number i.e. the order in which the PD's
732                  * incoming samples are arranged. */
733                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
734                         ret = 1;
735                         goto err_out;
736                 }
737                 g_hash_table_destroy(pd_opthash);
738                 pd_opthash = NULL;
739         }
740
741 err_out:
742         g_strfreev(pdtokens);
743         if (pd_opthash)
744                 g_hash_table_destroy(pd_opthash);
745         if (pd_name)
746                 g_free(pd_name);
747
748         return ret;
749 }
750
751 int setup_pd_stack(void)
752 {
753         struct srd_decoder_inst *di_from, *di_to;
754         int ret, i;
755         char **pds, **ids;
756
757         /* Set up the protocol decoder stack. */
758         pds = g_strsplit(opt_pds, ",", 0);
759         if (g_strv_length(pds) > 1) {
760                 if (opt_pd_stack) {
761                         /* A stack setup was specified, use that. */
762                         g_strfreev(pds);
763                         pds = g_strsplit(opt_pd_stack, ",", 0);
764                         if (g_strv_length(pds) < 2) {
765                                 g_strfreev(pds);
766                                 g_critical("Specify at least two protocol decoders to stack.");
767                                 return 1;
768                         }
769                 }
770
771                 /* First PD goes at the bottom of the stack. */
772                 ids = g_strsplit(pds[0], ":", 0);
773                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
774                         g_strfreev(ids);
775                         g_critical("Cannot stack protocol decoder '%s': "
776                                         "instance not found.", pds[0]);
777                         return 1;
778                 }
779                 g_strfreev(ids);
780
781                 /* Every subsequent PD goes on top. */
782                 for (i = 1; pds[i]; i++) {
783                         ids = g_strsplit(pds[i], ":", 0);
784                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
785                                 g_strfreev(ids);
786                                 g_critical("Cannot stack protocol decoder '%s': "
787                                                 "instance not found.", pds[i]);
788                                 return 1;
789                         }
790                         g_strfreev(ids);
791                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
792                                 return 1;
793
794                         /* Don't show annotation from this PD. Only the last PD in
795                          * the stack will be left on the annotation list (unless
796                          * the annotation list was specifically provided).
797                          */
798                         if (!opt_pd_annotations)
799                                 g_hash_table_remove(pd_ann_visible,
800                                                     di_from->inst_id);
801
802                         di_from = di_to;
803                 }
804         }
805         g_strfreev(pds);
806
807         return 0;
808 }
809
810 int setup_pd_annotations(void)
811 {
812         GSList *l;
813         struct srd_decoder *dec;
814         int ann;
815         char **pds, **pdtok, **keyval, **ann_descr;
816
817         /* Set up custom list of PDs and annotations to show. */
818         if (opt_pd_annotations) {
819                 pds = g_strsplit(opt_pd_annotations, ",", 0);
820                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
821                         ann = 0;
822                         keyval = g_strsplit(*pdtok, "=", 0);
823                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
824                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
825                                 return 1;
826                         }
827                         if (!dec->annotations) {
828                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
829                                 return 1;
830                         }
831                         if (g_strv_length(keyval) == 2) {
832                                 for (l = dec->annotations; l; l = l->next, ann++) {
833                                         ann_descr = l->data;
834                                         if (!canon_cmp(ann_descr[0], keyval[1]))
835                                                 /* Found it. */
836                                                 break;
837                                 }
838                                 if (!l) {
839                                         g_critical("Annotation '%s' not found "
840                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
841                                         return 1;
842                                 }
843                         }
844                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
845                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
846                         g_strfreev(keyval);
847                 }
848                 g_strfreev(pds);
849         }
850
851         return 0;
852 }
853
854 int setup_output_format(void)
855 {
856         GHashTable *fmtargs;
857         GHashTableIter iter;
858         gpointer key, value;
859         struct sr_output_format **outputs;
860         int i;
861         char *fmtspec;
862
863         if (!opt_output_format) {
864                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
865                 /* we'll need to remember this so when saving to a file
866                  * later, sigrok session format will be used.
867                  */
868                 default_output_format = TRUE;
869         }
870
871         fmtargs = parse_generic_arg(opt_output_format);
872         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
873         if (!fmtspec) {
874                 g_critical("Invalid output format.");
875                 return 1;
876         }
877         outputs = sr_output_list();
878         for (i = 0; outputs[i]; i++) {
879                 if (strcmp(outputs[i]->id, fmtspec))
880                         continue;
881                 g_hash_table_remove(fmtargs, "sigrok_key");
882                 output_format = outputs[i];
883                 g_hash_table_iter_init(&iter, fmtargs);
884                 while (g_hash_table_iter_next(&iter, &key, &value)) {
885                         /* only supporting one parameter per output module
886                          * for now, and only its value */
887                         output_format_param = g_strdup(value);
888                         break;
889                 }
890                 break;
891         }
892         if (!output_format) {
893                 g_critical("Invalid output format %s.", opt_output_format);
894                 return 1;
895         }
896         g_hash_table_destroy(fmtargs);
897
898         return 0;
899 }
900
901 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
902 {
903         int i;
904         char **annotations;
905         gpointer ann_format;
906
907         /* 'cb_data' is not used in this specific callback. */
908         (void)cb_data;
909
910         if (!pd_ann_visible)
911                 return;
912
913         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
914                         NULL, &ann_format))
915                 /* Not in the list of PDs whose annotations we're showing. */
916                 return;
917
918         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
919                 /* We don't want this particular format from the PD. */
920                 return;
921
922         annotations = pdata->data;
923         if (opt_loglevel > SR_LOG_WARN)
924                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
925         printf("%s: ", pdata->pdo->proto_id);
926         for (i = 0; annotations[i]; i++)
927                 printf("\"%s\" ", annotations[i]);
928         printf("\n");
929         fflush(stdout);
930 }
931
932 static int select_probes(struct sr_dev *dev)
933 {
934         struct sr_probe *probe;
935         char **probelist;
936         int max_probes, i;
937
938         if (!opt_probes)
939                 return SR_OK;
940
941         /*
942          * This only works because a device by default initializes
943          * and enables all its probes.
944          */
945         max_probes = g_slist_length(dev->probes);
946         probelist = parse_probestring(max_probes, opt_probes);
947         if (!probelist) {
948                 return SR_ERR;
949         }
950
951         for (i = 0; i < max_probes; i++) {
952                 if (probelist[i]) {
953                         sr_dev_probe_name_set(dev, i + 1, probelist[i]);
954                         g_free(probelist[i]);
955                 } else {
956                         probe = sr_dev_probe_find(dev, i + 1);
957                         probe->enabled = FALSE;
958                 }
959         }
960         g_free(probelist);
961
962         return SR_OK;
963 }
964
965 /**
966  * Return the input file format which the CLI tool should use.
967  *
968  * If the user specified -I / --input-format, use that one. Otherwise, try to
969  * autodetect the format as good as possible. Failing that, return NULL.
970  *
971  * @param filename The filename of the input file. Must not be NULL.
972  * @param opt The -I / --input-file option the user specified (or NULL).
973  *
974  * @return A pointer to the 'struct sr_input_format' that should be used,
975  *         or NULL if no input format was selected or auto-detected.
976  */
977 static struct sr_input_format *determine_input_file_format(
978                         const char *filename, const char *opt)
979 {
980         int i;
981         struct sr_input_format **inputs;
982
983         /* If there are no input formats, return NULL right away. */
984         inputs = sr_input_list();
985         if (!inputs) {
986                 g_critical("No supported input formats available.");
987                 return NULL;
988         }
989
990         /* If the user specified -I / --input-format, use that one. */
991         if (opt) {
992                 for (i = 0; inputs[i]; i++) {
993                         if (strcasecmp(inputs[i]->id, opt))
994                                 continue;
995                         g_debug("Using user-specified input file format '%s'.",
996                                         inputs[i]->id);
997                         return inputs[i];
998                 }
999
1000                 /* The user specified an unknown input format, return NULL. */
1001                 g_critical("Error: specified input file format '%s' is "
1002                         "unknown.", opt);
1003                 return NULL;
1004         }
1005
1006         /* Otherwise, try to find an input module that can handle this file. */
1007         for (i = 0; inputs[i]; i++) {
1008                 if (inputs[i]->format_match(filename))
1009                         break;
1010         }
1011
1012         /* Return NULL if no input module wanted to touch this. */
1013         if (!inputs[i]) {
1014                 g_critical("Error: no matching input module found.");
1015                 return NULL;
1016         }
1017
1018         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1019                 inputs[i]->id, filename);
1020                 
1021         return inputs[i];
1022 }
1023
1024 static void load_input_file_format(void)
1025 {
1026         GHashTable *fmtargs = NULL;
1027         struct stat st;
1028         struct sr_input *in;
1029         struct sr_input_format *input_format;
1030         char *fmtspec = NULL;
1031
1032         if (opt_input_format) {
1033                 fmtargs = parse_generic_arg(opt_input_format);
1034                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1035         }
1036
1037         if (!(input_format = determine_input_file_format(opt_input_file,
1038                                                    fmtspec))) {
1039                 /* The exact cause was already logged. */
1040                 return;
1041         }
1042 ;
1043         if (fmtargs)
1044                 g_hash_table_remove(fmtargs, "sigrok_key");
1045
1046         if (stat(opt_input_file, &st) == -1) {
1047                 g_critical("Failed to load %s: %s", opt_input_file,
1048                         strerror(errno));
1049                 exit(1);
1050         }
1051
1052         /* Initialize the input module. */
1053         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1054                 g_critical("Failed to allocate input module.");
1055                 exit(1);
1056         }
1057         in->format = input_format;
1058         in->param = fmtargs;
1059         if (in->format->init) {
1060                 if (in->format->init(in) != SR_OK) {
1061                         g_critical("Input format init failed.");
1062                         exit(1);
1063                 }
1064         }
1065
1066         if (select_probes(in->vdev) > 0)
1067             return;
1068
1069         sr_session_new();
1070         sr_session_datafeed_callback_add(datafeed_in);
1071         if (sr_session_dev_add(in->vdev) != SR_OK) {
1072                 g_critical("Failed to use device.");
1073                 sr_session_destroy();
1074                 return;
1075         }
1076
1077         input_format->loadfile(in, opt_input_file);
1078         if (opt_output_file && default_output_format) {
1079                 if (sr_session_save(opt_output_file) != SR_OK)
1080                         g_critical("Failed to save session.");
1081         }
1082         sr_session_destroy();
1083
1084         if (fmtargs)
1085                 g_hash_table_destroy(fmtargs);
1086 }
1087
1088 static void load_input_file(void)
1089 {
1090
1091         if (sr_session_load(opt_input_file) == SR_OK) {
1092                 /* sigrok session file */
1093                 sr_session_datafeed_callback_add(datafeed_in);
1094                 sr_session_start();
1095                 sr_session_run();
1096                 sr_session_stop();
1097         }
1098         else {
1099                 /* fall back on input modules */
1100                 load_input_file_format();
1101         }
1102 }
1103
1104 int num_real_devs(void)
1105 {
1106         struct sr_dev *dev;
1107         GSList *devs, *l;
1108         int num_devs;
1109
1110         num_devs = 0;
1111         devs = sr_dev_list();
1112         for (l = devs; l; l = l->next) {
1113                 dev = l->data;
1114                 if (!sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV))
1115                         num_devs++;
1116         }
1117
1118         return num_devs;
1119 }
1120
1121 static int set_dev_options(struct sr_dev *dev, GHashTable *args)
1122 {
1123         GHashTableIter iter;
1124         gpointer key, value;
1125         int ret, i;
1126         float tmp_float;
1127         uint64_t tmp_u64;
1128         struct sr_rational tmp_rat;
1129         gboolean tmp_bool;
1130         gboolean found;
1131
1132         g_hash_table_iter_init(&iter, args);
1133         while (g_hash_table_iter_next(&iter, &key, &value)) {
1134                 found = FALSE;
1135                 for (i = 0; sr_hwcap_options[i].hwcap; i++) {
1136                         if (strcmp(sr_hwcap_options[i].shortname, key))
1137                                 continue;
1138                         if ((value == NULL) && 
1139                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
1140                                 g_critical("Option '%s' needs a value.", (char *)key);
1141                                 return SR_ERR;
1142                         }
1143                         found = TRUE;
1144                         switch (sr_hwcap_options[i].type) {
1145                         case SR_T_UINT64:
1146                                 ret = sr_parse_sizestring(value, &tmp_u64);
1147                                 if (ret != SR_OK)
1148                                         break;
1149                                 ret = dev->driver->dev_config_set(dev->driver_index,
1150                                         sr_hwcap_options[i].hwcap, &tmp_u64);
1151                                 break;
1152                         case SR_T_CHAR:
1153                                 ret = dev->driver->dev_config_set(dev->driver_index,
1154                                         sr_hwcap_options[i].hwcap, value);
1155                                 break;
1156                         case SR_T_BOOL:
1157                                 if (!value)
1158                                         tmp_bool = TRUE;
1159                                 else 
1160                                         tmp_bool = sr_parse_boolstring(value);
1161                                 ret = dev->driver->dev_config_set(dev->driver_index,
1162                                                 sr_hwcap_options[i].hwcap, 
1163                                                 GINT_TO_POINTER(tmp_bool));
1164                                 break;
1165                         case SR_T_FLOAT:
1166                                 tmp_float = strtof(value, NULL);
1167                                 ret = dev->driver->dev_config_set(dev->driver_index,
1168                                                 sr_hwcap_options[i].hwcap, &tmp_float);
1169                                 break;
1170                         case SR_T_RATIONAL_PERIOD:
1171                                 if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1172                                         break;
1173                                 ret = dev->driver->dev_config_set(dev->driver_index,
1174                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1175                                 break;
1176                         case SR_T_RATIONAL_VOLT:
1177                                 if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1178                                         break;
1179                                 ret = dev->driver->dev_config_set(dev->driver_index,
1180                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1181                                 break;
1182                         default:
1183                                 ret = SR_ERR;
1184                         }
1185
1186                         if (ret != SR_OK) {
1187                                 g_critical("Failed to set device option '%s'.", (char *)key);
1188                                 return ret;
1189                         }
1190                         else
1191                                 break;
1192                 }
1193                 if (!found) {
1194                         g_critical("Unknown device option '%s'.", (char *) key);
1195                         return SR_ERR;
1196                 }
1197         }
1198
1199         return SR_OK;
1200 }
1201
1202 static void run_session(void)
1203 {
1204         struct sr_dev *dev;
1205         GHashTable *devargs;
1206         int num_devs, max_probes, i;
1207         uint64_t time_msec;
1208         char **probelist, *devspec;
1209
1210         devargs = NULL;
1211         if (opt_dev) {
1212                 devargs = parse_generic_arg(opt_dev);
1213                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
1214                 dev = parse_devstring(devspec);
1215                 if (!dev) {
1216                         g_critical("Device not found.");
1217                         return;
1218                 }
1219                 g_hash_table_remove(devargs, "sigrok_key");
1220         } else {
1221                 num_devs = num_real_devs();
1222                 if (num_devs == 1) {
1223                         /* No device specified, but there is only one. */
1224                         devargs = NULL;
1225                         dev = parse_devstring("0");
1226                 } else if (num_devs == 0) {
1227                         g_critical("No devices found.");
1228                         return;
1229                 } else {
1230                         g_critical("%d devices found, please select one.", num_devs);
1231                         return;
1232                 }
1233         }
1234
1235         sr_session_new();
1236         sr_session_datafeed_callback_add(datafeed_in);
1237
1238         if (sr_session_dev_add(dev) != SR_OK) {
1239                 g_critical("Failed to use device.");
1240                 sr_session_destroy();
1241                 return;
1242         }
1243
1244         if (devargs) {
1245                 if (set_dev_options(dev, devargs) != SR_OK) {
1246                         sr_session_destroy();
1247                         return;
1248                 }
1249                 g_hash_table_destroy(devargs);
1250         }
1251
1252         if (select_probes(dev) != SR_OK)
1253             return;
1254
1255         if (opt_continuous) {
1256                 if (!sr_driver_hwcap_exists(dev->driver, SR_HWCAP_CONTINUOUS)) {
1257                         g_critical("This device does not support continuous sampling.");
1258                         sr_session_destroy();
1259                         return;
1260                 }
1261         }
1262
1263         if (opt_triggers) {
1264                 probelist = sr_parse_triggerstring(dev, opt_triggers);
1265                 if (!probelist) {
1266                         sr_session_destroy();
1267                         return;
1268                 }
1269
1270                 max_probes = g_slist_length(dev->probes);
1271                 for (i = 0; i < max_probes; i++) {
1272                         if (probelist[i]) {
1273                                 sr_dev_trigger_set(dev, i + 1, probelist[i]);
1274                                 g_free(probelist[i]);
1275                         }
1276                 }
1277                 g_free(probelist);
1278         }
1279
1280         if (opt_time) {
1281                 time_msec = sr_parse_timestring(opt_time);
1282                 if (time_msec == 0) {
1283                         g_critical("Invalid time '%s'", opt_time);
1284                         sr_session_destroy();
1285                         return;
1286                 }
1287
1288                 if (sr_driver_hwcap_exists(dev->driver, SR_HWCAP_LIMIT_MSEC)) {
1289                         if (dev->driver->dev_config_set(dev->driver_index,
1290                             SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1291                                 g_critical("Failed to configure time limit.");
1292                                 sr_session_destroy();
1293                                 return;
1294                         }
1295                 }
1296                 else {
1297                         /* time limit set, but device doesn't support this...
1298                          * convert to samples based on the samplerate.
1299                          */
1300                         limit_samples = 0;
1301                         if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
1302                                 const uint64_t *samplerate;
1303
1304                                 sr_dev_info_get(dev, SR_DI_CUR_SAMPLERATE,
1305                                                 (const void **)&samplerate);
1306                                 limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1307                         }
1308                         if (limit_samples == 0) {
1309                                 g_critical("Not enough time at this samplerate.");
1310                                 sr_session_destroy();
1311                                 return;
1312                         }
1313
1314                         if (dev->driver->dev_config_set(dev->driver_index,
1315                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
1316                                 g_critical("Failed to configure time-based sample limit.");
1317                                 sr_session_destroy();
1318                                 return;
1319                         }
1320                 }
1321         }
1322
1323         if (opt_samples) {
1324                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1325                         || (dev->driver->dev_config_set(dev->driver_index,
1326                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
1327                         g_critical("Failed to configure sample limit.");
1328                         sr_session_destroy();
1329                         return;
1330                 }
1331         }
1332
1333         if (opt_frames) {
1334                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1335                         || (dev->driver->dev_config_set(dev->driver_index,
1336                             SR_HWCAP_LIMIT_FRAMES, &limit_frames) != SR_OK)) {
1337                         printf("Failed to configure frame limit.\n");
1338                         sr_session_destroy();
1339                         return;
1340                 }
1341         }
1342
1343         if (dev->driver->dev_config_set(dev->driver_index,
1344                   SR_HWCAP_PROBECONFIG, (char *)dev->probes) != SR_OK) {
1345                 g_critical("Failed to configure probes.");
1346                 sr_session_destroy();
1347                 return;
1348         }
1349
1350         if (sr_session_start() != SR_OK) {
1351                 g_critical("Failed to start session.");
1352                 sr_session_destroy();
1353                 return;
1354         }
1355
1356         if (opt_continuous)
1357                 add_anykey();
1358
1359         sr_session_run();
1360
1361         if (opt_continuous)
1362                 clear_anykey();
1363
1364         if (opt_output_file && default_output_format) {
1365                 if (sr_session_save(opt_output_file) != SR_OK)
1366                         g_critical("Failed to save session.");
1367         }
1368         sr_session_destroy();
1369 }
1370
1371 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1372                    const gchar *message, gpointer cb_data)
1373 {
1374         /* Avoid compiler warnings. */
1375         (void)log_domain;
1376         (void)cb_data;
1377
1378         /*
1379          * All messages, warnings, errors etc. go to stderr (not stdout) in
1380          * order to not mess up the CLI tool data output, e.g. VCD output.
1381          */
1382         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1383                         || opt_loglevel > SR_LOG_WARN) {
1384                 fprintf(stderr, "%s\n", message);
1385                 fflush(stderr);
1386         }
1387 }
1388
1389 int main(int argc, char **argv)
1390 {
1391         GOptionContext *context;
1392         GError *error;
1393
1394         g_log_set_default_handler(logger, NULL);
1395
1396         error = NULL;
1397         context = g_option_context_new(NULL);
1398         g_option_context_add_main_entries(context, optargs, NULL);
1399
1400         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1401                 g_critical("%s", error->message);
1402                 return 1;
1403         }
1404
1405         /* Set the loglevel (amount of messages to output) for libsigrok. */
1406         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1407                 return 1;
1408
1409         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1410         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1411                 return 1;
1412
1413         if (sr_init() != SR_OK)
1414                 return 1;
1415
1416         if (opt_pds) {
1417                 if (srd_init(NULL) != SRD_OK)
1418                         return 1;
1419                 if (register_pds(NULL, opt_pds) != 0)
1420                         return 1;
1421                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1422                                 show_pd_annotations, NULL) != SRD_OK)
1423                         return 1;
1424                 if (setup_pd_stack() != 0)
1425                         return 1;
1426                 if (setup_pd_annotations() != 0)
1427                         return 1;
1428         }
1429
1430         if (setup_output_format() != 0)
1431                 return 1;
1432
1433         if (opt_version)
1434                 show_version();
1435         else if (opt_list_devs)
1436                 show_dev_list();
1437         else if (opt_input_file)
1438                 load_input_file();
1439         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1440                 run_session();
1441         else if (opt_dev)
1442                 show_dev_detail();
1443         else if (opt_pds)
1444                 show_pd_detail();
1445         else
1446                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1447
1448         if (opt_pds)
1449                 srd_exit();
1450
1451         g_option_context_free(context);
1452         sr_exit();
1453
1454         return 0;
1455 }