Deprecate SR_DI_TRIGGER_TYPES.
[sigrok-cli.git] / 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 static struct sr_context *sr_ctx = NULL;
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 static GByteArray *savebuf;
48
49 static gboolean opt_version = FALSE;
50 static gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */
51 static gboolean opt_list_devs = FALSE;
52 static gboolean opt_wait_trigger = FALSE;
53 static gchar *opt_input_file = NULL;
54 static gchar *opt_output_file = NULL;
55 static gchar *opt_drv = NULL;
56 static gchar *opt_dev = NULL;
57 static gchar *opt_probes = NULL;
58 static gchar *opt_triggers = NULL;
59 static gchar *opt_pds = NULL;
60 static gchar *opt_pd_stack = NULL;
61 static gchar *opt_pd_annotations = NULL;
62 static gchar *opt_input_format = NULL;
63 static gchar *opt_output_format = NULL;
64 static gchar *opt_show = NULL;
65 static gchar *opt_time = NULL;
66 static gchar *opt_samples = NULL;
67 static gchar *opt_frames = NULL;
68 static gchar *opt_continuous = NULL;
69
70 static GOptionEntry optargs[] = {
71         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
72                         "Show version and support list", NULL},
73         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
74                         "Set libsigrok/libsigrokdecode loglevel", NULL},
75         {"list-devices", 'D', 0, G_OPTION_ARG_NONE, &opt_list_devs,
76                         "Scan for devices", NULL},
77         {"driver", 0, 0, G_OPTION_ARG_STRING, &opt_drv,
78                         "Use only this driver", NULL},
79         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev,
80                         "Use specified device", NULL},
81         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
82                         "Load input from file", NULL},
83         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
84                         "Input format", NULL},
85         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
86                         "Save output to file", NULL},
87         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
88                         "Output format", NULL},
89         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
90                         "Probes to use", NULL},
91         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
92                         "Trigger configuration", NULL},
93         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
94                         "Wait for trigger", NULL},
95         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds,
96                         "Protocol decoders to run", NULL},
97         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
98                         "Protocol decoder stack", NULL},
99         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
100                         "Protocol decoder annotation(s) to show", NULL},
101         {"show", 0, 0, G_OPTION_ARG_NONE, &opt_show,
102                         "Show device detail", NULL},
103         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
104                         "How long to sample (ms)", NULL},
105         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
106                         "Number of samples to acquire", NULL},
107         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
108                         "Number of frames to acquire", NULL},
109         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
110                         "Sample continuously", NULL},
111         {NULL, 0, 0, 0, NULL, NULL, NULL}
112 };
113
114
115 /* Convert driver options hash to GSList of struct sr_config. */
116 static GSList *hash_to_hwopt(GHashTable *hash)
117 {
118         const struct sr_config_info *srci;
119         struct sr_config *src;
120         GList *gl, *keys;
121         GSList *opts;
122         char *key, *value;
123
124         keys = g_hash_table_get_keys(hash);
125         opts = NULL;
126         for (gl = keys; gl; gl = gl->next) {
127                 key = gl->data;
128                 if (!(srci = sr_config_info_name_get(key))) {
129                         g_critical("Unknown option %s", key);
130                         return NULL;
131                 }
132                 src = g_try_malloc(sizeof(struct sr_config));
133                 src->key = srci->key;
134                 value = g_hash_table_lookup(hash, key);
135                 src->value = g_strdup(value);
136                 opts = g_slist_append(opts, src);
137         }
138         g_list_free(keys);
139
140         return opts;
141 }
142
143 static void free_drvopts(struct sr_config *src)
144 {
145         g_free((void *)src->value);
146         g_free(src);
147 }
148
149 static GSList *device_scan(void)
150 {
151         struct sr_dev_driver **drivers, *driver;
152         GHashTable *drvargs;
153         GSList *drvopts, *devices, *tmpdevs, *l;
154         int i;
155         char *drvname;
156
157         if (opt_drv) {
158                 drvargs = parse_generic_arg(opt_drv, TRUE);
159                 drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
160                 g_hash_table_remove(drvargs, "sigrok_key");
161                 driver = NULL;
162                 drivers = sr_driver_list();
163                 for (i = 0; drivers[i]; i++) {
164                         if (strcmp(drivers[i]->name, drvname))
165                                 continue;
166                         driver = drivers[i];
167                 }
168                 if (!driver) {
169                         g_critical("Driver %s not found.", drvname);
170                         return NULL;
171                 }
172                 g_free(drvname);
173                 if (sr_driver_init(sr_ctx, driver) != SR_OK) {
174                         g_critical("Failed to initialize driver.");
175                         return NULL;
176                 }
177                 drvopts = NULL;
178                 if (g_hash_table_size(drvargs) > 0)
179                         if (!(drvopts = hash_to_hwopt(drvargs)))
180                                 /* Unknown options, already logged. */
181                                 return NULL;
182                 devices = sr_driver_scan(driver, drvopts);
183                 g_slist_free_full(drvopts, (GDestroyNotify)free_drvopts);
184         } else {
185                 /* No driver specified, let them all scan on their own. */
186                 devices = NULL;
187                 drivers = sr_driver_list();
188                 for (i = 0; drivers[i]; i++) {
189                         driver = drivers[i];
190                         if (sr_driver_init(sr_ctx, driver) != SR_OK) {
191                                 g_critical("Failed to initialize driver.");
192                                 return NULL;
193                         }
194                         tmpdevs = sr_driver_scan(driver, NULL);
195                         for (l = tmpdevs; l; l = l->next)
196                                 devices = g_slist_append(devices, l->data);
197                         g_slist_free(tmpdevs);
198                 }
199         }
200
201         return devices;
202 }
203
204 static void show_version(void)
205 {
206         const GSList *l;
207         struct sr_dev_driver **drivers;
208         struct sr_input_format **inputs;
209         struct sr_output_format **outputs;
210         struct srd_decoder *dec;
211         int i;
212
213         printf("sigrok-cli %s\n\n", VERSION);
214
215         printf("Using libsigrok %s (lib version %s).\n",
216                sr_package_version_string_get(), sr_lib_version_string_get());
217         printf("Using libsigrokdecode %s (lib version %s).\n\n",
218                srd_package_version_string_get(), srd_lib_version_string_get());
219
220         printf("Supported hardware drivers:\n");
221         drivers = sr_driver_list();
222         for (i = 0; drivers[i]; i++) {
223                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
224         }
225         printf("\n");
226
227         printf("Supported input formats:\n");
228         inputs = sr_input_list();
229         for (i = 0; inputs[i]; i++)
230                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
231         printf("\n");
232
233         printf("Supported output formats:\n");
234         outputs = sr_output_list();
235         for (i = 0; outputs[i]; i++)
236                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
237         printf("\n");
238
239         if (srd_init(NULL) == SRD_OK) {
240                 printf("Supported protocol decoders:\n");
241                 srd_decoder_load_all();
242                 for (l = srd_decoder_list(); l; l = l->next) {
243                         dec = l->data;
244                         printf("  %-20s %s\n", dec->id, dec->longname);
245                         /* Print protocol description upon "-l 3" or higher. */
246                         if (opt_loglevel >= SR_LOG_INFO)
247                                 printf("  %-20s %s\n", "", dec->desc);
248                 }
249                 srd_exit();
250         }
251         printf("\n");
252 }
253
254 static void print_dev_line(const struct sr_dev_inst *sdi)
255 {
256         struct sr_probe *probe;
257         GSList *l;
258
259         if (sdi->vendor && sdi->vendor[0])
260                 printf("%s ", sdi->vendor);
261         if (sdi->model && sdi->model[0])
262                 printf("%s ", sdi->model);
263         if (sdi->version && sdi->version[0])
264                 printf("%s ", sdi->version);
265         if (sdi->probes) {
266                 if (g_slist_length(sdi->probes) == 1) {
267                         probe = sdi->probes->data;
268                         printf("with 1 probe: %s", probe->name);
269                 } else {
270                         printf("with %d probes:", g_slist_length(sdi->probes));
271                         for (l = sdi->probes; l; l = l->next) {
272                                 probe = l->data;
273                                 printf(" %s", probe->name);
274                         }
275                 }
276         }
277         printf("\n");
278 }
279
280 static void show_dev_list(void)
281 {
282         struct sr_dev_inst *sdi;
283         GSList *devices, *l;
284
285         if (!(devices = device_scan()))
286                 return;
287
288         printf("The following devices were found:\n");
289         for (l = devices; l; l = l->next) {
290                 sdi = l->data;
291                 print_dev_line(sdi);
292         }
293         g_slist_free(devices);
294
295 }
296
297 static void show_dev_detail(void)
298 {
299         struct sr_dev_inst *sdi;
300         const struct sr_config_info *srci;
301         const struct sr_samplerates *samplerates;
302         struct sr_rational *rationals;
303         GSList *devices;
304         uint64_t *integers;
305         const int *hwopts, *hwcaps;
306         int cap, num_devices, n, i;
307         char *s, *title;
308         const char *charopts, **stropts;
309
310         if (!(devices = device_scan())) {
311                 g_critical("No devices found.");
312                 return;
313         }
314
315         num_devices = g_slist_length(devices);
316         if (num_devices > 1) {
317                 if (!opt_dev) {
318                         g_critical("%d devices found. Use --list-devices to show them, "
319                                         "and --device to select one.", num_devices);
320                         return;
321                 }
322                 /* opt_dev is NULL if not specified, which is fine. */
323                 n = strtol(opt_dev, NULL, 10);
324                 if (n >= num_devices) {
325                         g_critical("%d devices found, numbered starting from 0.",
326                                         num_devices);
327                         return;
328                 }
329                 sdi = g_slist_nth_data(devices, n);
330         } else
331                 sdi = g_slist_nth_data(devices, 0);
332
333         print_dev_line(sdi);
334
335         if (sr_config_list(sdi->driver, SR_CONF_TRIGGER_TYPE, (const void **)&charopts,
336                         sdi) == SR_OK && charopts) {
337                 printf("Supported triggers: ");
338                 while (*charopts) {
339                         printf("%c ", *charopts);
340                         charopts++;
341                 }
342                 printf("\n");
343         }
344
345         if ((sr_info_get(sdi->driver, SR_DI_HWOPTS, (const void **)&hwopts,
346                         NULL) == SR_OK) && hwopts) {
347                 printf("Supported driver options:\n");
348                 for (i = 0; hwopts[i]; i++) {
349                         if (!(srci = sr_config_info_get(hwopts[i])))
350                                 continue;
351                         printf("    %s\n", srci->id);
352                 }
353         }
354
355         title = "Supported device options:\n";
356         if ((sr_info_get(sdi->driver, SR_DI_HWCAPS, (const void **)&hwcaps,
357                         NULL) != SR_OK) || !hwcaps)
358                 /* Driver supports no device instance options. */
359                 return;
360
361         for (cap = 0; hwcaps[cap]; cap++) {
362                 if (!(srci = sr_config_info_get(hwcaps[cap])))
363                         continue;
364
365                 if (title) {
366                         printf("%s", title);
367                         title = NULL;
368                 }
369
370                 if (srci->key == SR_CONF_PATTERN_MODE) {
371                         /* Pattern generator modes */
372                         printf("    %s", srci->id);
373                         if (sr_config_list(sdi->driver, SR_CONF_PATTERN_MODE,
374                                         (const void **)&stropts, sdi) == SR_OK) {
375                                 printf(" - supported patterns:\n");
376                                 for (i = 0; stropts[i]; i++)
377                                         printf("      %s\n", stropts[i]);
378                         } else {
379                                 printf("\n");
380                         }
381
382                 } else if (srci->key == SR_CONF_SAMPLERATE) {
383                         /* Supported samplerates */
384                         printf("    %s", srci->id);
385                         if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE,
386                                         (const void **)&samplerates, sdi) != SR_OK) {
387                                 printf("\n");
388                                 continue;
389                         }
390                         if (samplerates->step) {
391                                 /* low */
392                                 if (!(s = sr_samplerate_string(samplerates->low)))
393                                         continue;
394                                 printf(" (%s", s);
395                                 g_free(s);
396                                 /* high */
397                                 if (!(s = sr_samplerate_string(samplerates->high)))
398                                         continue;
399                                 printf(" - %s", s);
400                                 g_free(s);
401                                 /* step */
402                                 if (!(s = sr_samplerate_string(samplerates->step)))
403                                         continue;
404                                 printf(" in steps of %s)\n", s);
405                                 g_free(s);
406                         } else {
407                                 printf(" - supported samplerates:\n");
408                                 for (i = 0; samplerates->list[i]; i++)
409                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
410                         }
411
412                 } else if (srci->key == SR_CONF_BUFFERSIZE) {
413                         /* Supported buffer sizes */
414                         printf("    %s", srci->id);
415                         if (sr_config_list(sdi->driver, SR_CONF_BUFFERSIZE,
416                                         (const void **)&integers, sdi) != SR_OK) {
417                                 printf("\n");
418                                 continue;
419                         }
420                         printf(" - supported buffer sizes:\n");
421                         for (i = 0; integers[i]; i++)
422                                 printf("      %"PRIu64"\n", integers[i]);
423
424                 } else if (srci->key == SR_CONF_TIMEBASE) {
425                         /* Supported time bases */
426                         printf("    %s", srci->id);
427                         if (sr_config_list(sdi->driver, SR_CONF_TIMEBASE,
428                                         (const void **)&rationals, sdi) != SR_OK) {
429                                 printf("\n");
430                                 continue;
431                         }
432                         printf(" - supported time bases:\n");
433                         for (i = 0; rationals[i].p && rationals[i].q; i++)
434                                 printf("      %s\n", sr_period_string(
435                                                 rationals[i].p * rationals[i].q));
436
437                 } else if (srci->key == SR_CONF_TRIGGER_SOURCE) {
438                         /* Supported trigger sources */
439                         printf("    %s", srci->id);
440                         if (sr_config_list(sdi->driver, SR_CONF_TRIGGER_SOURCE,
441                                         (const void **)&stropts, sdi) != SR_OK) {
442                                 printf("\n");
443                                 continue;
444                         }
445                         printf(" - supported trigger sources:\n");
446                         for (i = 0; stropts[i]; i++)
447                                 printf("      %s\n", stropts[i]);
448
449                 } else if (srci->key == SR_CONF_FILTER) {
450                         /* Supported filters */
451                         printf("    %s", srci->id);
452                         if (sr_config_list(sdi->driver, SR_CONF_FILTER,
453                                         (const void **)&stropts, sdi) != SR_OK) {
454                                 printf("\n");
455                                 continue;
456                         }
457                         printf(" - supported filter targets:\n");
458                         for (i = 0; stropts[i]; i++)
459                                 printf("      %s\n", stropts[i]);
460
461                 } else if (srci->key == SR_CONF_VDIV) {
462                         /* Supported volts/div values */
463                         printf("    %s", srci->id);
464                         if (sr_config_list(sdi->driver, SR_CONF_VDIV,
465                                         (const void **)&rationals, sdi) != SR_OK) {
466                                 printf("\n");
467                                 continue;
468                         }
469                         printf(" - supported volts/div:\n");
470                         for (i = 0; rationals[i].p && rationals[i].q; i++)
471                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
472
473                 } else if (srci->key == SR_CONF_COUPLING) {
474                         /* Supported coupling settings */
475                         printf("    %s", srci->id);
476                         if (sr_config_list(sdi->driver, SR_CONF_COUPLING,
477                                         (const void **)&stropts, sdi) != SR_OK) {
478                                 printf("\n");
479                                 continue;
480                         }
481                         printf(" - supported coupling options:\n");
482                         for (i = 0; stropts[i]; i++)
483                                 printf("      %s\n", stropts[i]);
484
485                 } else {
486                         /* Everything else */
487                         printf("    %s\n", srci->id);
488                 }
489         }
490
491 }
492
493 static void show_pd_detail(void)
494 {
495         GSList *l;
496         struct srd_decoder *dec;
497         char **pdtokens, **pdtok, **ann, *doc;
498         struct srd_probe *p;
499
500         pdtokens = g_strsplit(opt_pds, ",", -1);
501         for (pdtok = pdtokens; *pdtok; pdtok++) {
502                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
503                         g_critical("Protocol decoder %s not found.", *pdtok);
504                         return;
505                 }
506                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
507                                 dec->id, dec->name, dec->longname, dec->desc);
508                 printf("License: %s\n", dec->license);
509                 printf("Annotations:\n");
510                 if (dec->annotations) {
511                         for (l = dec->annotations; l; l = l->next) {
512                                 ann = l->data;
513                                 printf("- %s\n  %s\n", ann[0], ann[1]);
514                         }
515                 } else {
516                         printf("None.\n");
517                 }
518                 /* TODO: Print supported decoder options. */
519                 printf("Required probes:\n");
520                 if (dec->probes) {
521                         for (l = dec->probes; l; l = l->next) {
522                                 p = l->data;
523                                 printf("- %s (%s): %s\n",
524                                        p->name, p->id, p->desc);
525                         }
526                 } else {
527                         printf("None.\n");
528                 }
529                 printf("Optional probes:\n");
530                 if (dec->opt_probes) {
531                         for (l = dec->opt_probes; l; l = l->next) {
532                                 p = l->data;
533                                 printf("- %s (%s): %s\n",
534                                        p->name, p->id, p->desc);
535                         }
536                 } else {
537                         printf("None.\n");
538                 }
539                 if ((doc = srd_decoder_doc_get(dec))) {
540                         printf("Documentation:\n%s\n",
541                                doc[0] == '\n' ? doc + 1 : doc);
542                         g_free(doc);
543                 }
544         }
545
546         g_strfreev(pdtokens);
547 }
548
549 static GArray *get_enabled_logic_probes(const struct sr_dev_inst *sdi)
550 {
551         struct sr_probe *probe;
552         GArray *probes;
553         GSList *l;
554
555         probes = g_array_new(FALSE, FALSE, sizeof(int));
556         for (l = sdi->probes; l; l = l->next) {
557                 probe = l->data;
558                 if (probe->type != SR_PROBE_LOGIC)
559                         continue;
560                 if (probe->enabled != TRUE)
561                         continue;
562                 g_array_append_val(probes, probe->index);
563         }
564
565         return probes;
566 }
567
568 static void datafeed_in(const struct sr_dev_inst *sdi,
569                 const struct sr_datafeed_packet *packet)
570 {
571         const struct sr_datafeed_meta *meta;
572         const struct sr_datafeed_logic *logic;
573         const struct sr_datafeed_analog *analog;
574         struct sr_config *src;
575         static struct sr_output *o = NULL;
576         static GArray *logic_probelist = NULL;
577         static uint64_t received_samples = 0;
578         static int unitsize = 0;
579         static int triggered = 0;
580         static FILE *outfile = NULL;
581         int sample_size, ret;
582         uint64_t *samplerate, output_len, filter_out_len;
583         uint8_t *output_buf, *filter_out;
584         GString *out;
585         GSList *l;
586
587         /* If the first packet to come in isn't a header, don't even try. */
588         if (packet->type != SR_DF_HEADER && o == NULL)
589                 return;
590
591         sample_size = -1;
592         switch (packet->type) {
593         case SR_DF_HEADER:
594                 g_debug("cli: Received SR_DF_HEADER");
595                 /* Initialize the output module. */
596                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
597                         g_critical("Output module malloc failed.");
598                         exit(1);
599                 }
600                 o->format = output_format;
601                 o->sdi = (struct sr_dev_inst *)sdi;
602                 o->param = output_format_param;
603                 if (o->format->init) {
604                         if (o->format->init(o) != SR_OK) {
605                                 g_critical("Output format initialization failed.");
606                                 exit(1);
607                         }
608                 }
609
610                 /* Prepare non-stdout output. */
611                 outfile = stdout;
612                 if (opt_output_file) {
613                         if (default_output_format) {
614                                 /* output file is in session format, so we'll
615                                  * keep a copy of everything as it comes in
616                                  * and save from there after the session. */
617                                 outfile = NULL;
618                                 savebuf = g_byte_array_new();
619                         } else {
620                                 /* saving to a file in whatever format was set
621                                  * with --format, so all we need is a filehandle */
622                                 outfile = g_fopen(opt_output_file, "wb");
623                         }
624                 }
625
626                 /* Prepare for logic data. */
627                 logic_probelist = get_enabled_logic_probes(sdi);
628                 /* How many bytes we need to store the packed samples. */
629                 unitsize = (logic_probelist->len + 7) / 8;
630
631                 if (opt_pds && logic_probelist->len) {
632                         if (sr_info_get(sdi->driver, SR_CONF_SAMPLERATE,
633                                         (const void **)&samplerate, sdi) != SR_OK) {
634                                 g_critical("Unable to initialize protocol "
635                                                 "decoders: no samplerate found.");
636                                 break;
637                         }
638                         srd_session_start(logic_probelist->len, unitsize,
639                                         *samplerate);
640                 }
641                 break;
642
643         case SR_DF_END:
644                 g_debug("cli: Received SR_DF_END");
645                 if (!o) {
646                         g_debug("cli: double end!");
647                         break;
648                 }
649                 if (o->format->event) {
650                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
651                         if (output_buf) {
652                                 if (outfile)
653                                         fwrite(output_buf, 1, output_len, outfile);
654                                 g_free(output_buf);
655                                 output_len = 0;
656                         }
657                 }
658                 if (limit_samples && received_samples < limit_samples)
659                         g_warning("Device only sent %" PRIu64 " samples.",
660                                received_samples);
661                 if (opt_continuous)
662                         g_warning("Device stopped after %" PRIu64 " samples.",
663                                received_samples);
664
665                 if (outfile && outfile != stdout)
666                         fclose(outfile);
667
668                 if (opt_output_file && default_output_format) {
669                         if (sr_session_save(opt_output_file, sdi, savebuf->data,
670                                         unitsize, savebuf->len / unitsize) != SR_OK)
671                                 g_critical("Failed to save session.");
672                         g_byte_array_free(savebuf, FALSE);
673                 }
674
675                 g_array_free(logic_probelist, TRUE);
676                 if (o->format->cleanup)
677                         o->format->cleanup(o);
678                 g_free(o);
679                 o = NULL;
680                 break;
681
682         case SR_DF_META:
683                 g_debug("cli: received SR_DF_META");
684                 meta = packet->payload;
685                 for (l = meta->config; l; l = l->next) {
686                         src = l->data;
687                         switch (src->key) {
688                         case SR_CONF_SAMPLERATE:
689                                 samplerate = (uint64_t *)src->value;
690                                 g_debug("cli: got samplerate %"PRIu64, *samplerate);
691                                 break;
692                         default:
693                                 /* Unknown metadata is not an error. */
694                                 break;
695                         }
696                 }
697                 break;
698
699         case SR_DF_TRIGGER:
700                 g_debug("cli: received SR_DF_TRIGGER");
701                 if (o->format->event)
702                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
703                                          &output_len);
704                 triggered = 1;
705                 break;
706
707         case SR_DF_LOGIC:
708                 logic = packet->payload;
709                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
710                 sample_size = logic->unitsize;
711                 if (logic->length == 0)
712                         break;
713
714                 /* Don't store any samples until triggered. */
715                 if (opt_wait_trigger && !triggered)
716                         break;
717
718                 if (limit_samples && received_samples >= limit_samples)
719                         break;
720
721                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
722                                 logic->data, logic->length,
723                                 &filter_out, &filter_out_len);
724                 if (ret != SR_OK)
725                         break;
726
727                 /* What comes out of the filter is guaranteed to be packed into the
728                  * minimum size needed to support the number of samples at this sample
729                  * size. however, the driver may have submitted too much -- cut off
730                  * the buffer of the last packet according to the sample limit.
731                  */
732                 if (limit_samples && (received_samples + logic->length / sample_size >
733                                 limit_samples * sample_size))
734                         filter_out_len = limit_samples * sample_size - received_samples;
735
736                 if (opt_output_file && default_output_format) {
737                         /* Saving to a session file. */
738                         g_byte_array_append(savebuf, filter_out, filter_out_len);
739                 } else {
740                         if (opt_pds) {
741                                 if (srd_session_send(received_samples, (uint8_t*)filter_out,
742                                                 filter_out_len) != SRD_OK)
743                                         sr_session_stop();
744                         } else {
745                                 output_len = 0;
746                                 if (o->format->data && packet->type == o->format->df_type)
747                                         o->format->data(o, filter_out, filter_out_len,
748                                                         &output_buf, &output_len);
749                                 if (output_buf) {
750                                         fwrite(output_buf, 1, output_len, outfile);
751                                         fflush(outfile);
752                                         g_free(output_buf);
753                                 }
754                         }
755                 }
756                 g_free(filter_out);
757
758                 received_samples += logic->length / sample_size;
759                 break;
760
761         case SR_DF_ANALOG:
762                 analog = packet->payload;
763                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
764                 if (analog->num_samples == 0)
765                         break;
766
767                 if (limit_samples && received_samples >= limit_samples)
768                         break;
769
770                 if (o->format->data && packet->type == o->format->df_type) {
771                         o->format->data(o, (const uint8_t *)analog->data,
772                                         analog->num_samples * sizeof(float),
773                                         &output_buf, &output_len);
774                         if (output_buf) {
775                                 fwrite(output_buf, 1, output_len, outfile);
776                                 fflush(outfile);
777                                 g_free(output_buf);
778                         }
779                 }
780
781                 received_samples += analog->num_samples;
782                 break;
783
784         case SR_DF_FRAME_BEGIN:
785                 g_debug("cli: received SR_DF_FRAME_BEGIN");
786                 if (o->format->event) {
787                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
788                                          &output_len);
789                         if (output_buf) {
790                                 fwrite(output_buf, 1, output_len, outfile);
791                                 fflush(outfile);
792                                 g_free(output_buf);
793                         }
794                 }
795                 break;
796
797         case SR_DF_FRAME_END:
798                 g_debug("cli: received SR_DF_FRAME_END");
799                 if (o->format->event) {
800                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
801                                          &output_len);
802                         if (output_buf) {
803                                 fwrite(output_buf, 1, output_len, outfile);
804                                 fflush(outfile);
805                                 g_free(output_buf);
806                         }
807                 }
808                 break;
809
810         default:
811                 break;
812         }
813
814         if (o && o->format->recv) {
815                 out = o->format->recv(o, sdi, packet);
816                 if (out && out->len) {
817                         fwrite(out->str, 1, out->len, outfile);
818                         fflush(outfile);
819                 }
820         }
821
822 }
823
824 /* Register the given PDs for this session.
825  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
826  * That will instantiate two SPI decoders on the clock but different data
827  * lines.
828  */
829 static int register_pds(struct sr_dev *dev, const char *pdstring)
830 {
831         GHashTable *pd_opthash;
832         struct srd_decoder_inst *di;
833         int ret;
834         char **pdtokens, **pdtok, *pd_name;
835
836         (void)dev;
837
838         ret = 0;
839         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
840                         g_free, NULL);
841         pd_name = NULL;
842         pd_opthash = NULL;
843         pdtokens = g_strsplit(pdstring, ",", 0);
844         for (pdtok = pdtokens; *pdtok; pdtok++) {
845                 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
846                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
847                         goto err_out;
848                 }
849
850                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
851                 g_hash_table_remove(pd_opthash, "sigrok_key");
852                 if (srd_decoder_load(pd_name) != SRD_OK) {
853                         g_critical("Failed to load protocol decoder %s.", pd_name);
854                         ret = 1;
855                         goto err_out;
856                 }
857                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
858                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
859                         ret = 1;
860                         goto err_out;
861                 }
862
863                 /* If no annotation list was specified, add them all in now.
864                  * This will be pared down later to leave only the last PD
865                  * in the stack.
866                  */
867                 if (!opt_pd_annotations)
868                         g_hash_table_insert(pd_ann_visible,
869                                             g_strdup(di->inst_id), NULL);
870
871                 /* Any keys left in the options hash are probes, where the key
872                  * is the probe name as specified in the decoder class, and the
873                  * value is the probe number i.e. the order in which the PD's
874                  * incoming samples are arranged. */
875                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
876                         ret = 1;
877                         goto err_out;
878                 }
879                 g_hash_table_destroy(pd_opthash);
880                 pd_opthash = NULL;
881         }
882
883 err_out:
884         g_strfreev(pdtokens);
885         if (pd_opthash)
886                 g_hash_table_destroy(pd_opthash);
887         if (pd_name)
888                 g_free(pd_name);
889
890         return ret;
891 }
892
893 int setup_pd_stack(void)
894 {
895         struct srd_decoder_inst *di_from, *di_to;
896         int ret, i;
897         char **pds, **ids;
898
899         /* Set up the protocol decoder stack. */
900         pds = g_strsplit(opt_pds, ",", 0);
901         if (g_strv_length(pds) > 1) {
902                 if (opt_pd_stack) {
903                         /* A stack setup was specified, use that. */
904                         g_strfreev(pds);
905                         pds = g_strsplit(opt_pd_stack, ",", 0);
906                         if (g_strv_length(pds) < 2) {
907                                 g_strfreev(pds);
908                                 g_critical("Specify at least two protocol decoders to stack.");
909                                 return 1;
910                         }
911                 }
912
913                 /* First PD goes at the bottom of the stack. */
914                 ids = g_strsplit(pds[0], ":", 0);
915                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
916                         g_strfreev(ids);
917                         g_critical("Cannot stack protocol decoder '%s': "
918                                         "instance not found.", pds[0]);
919                         return 1;
920                 }
921                 g_strfreev(ids);
922
923                 /* Every subsequent PD goes on top. */
924                 for (i = 1; pds[i]; i++) {
925                         ids = g_strsplit(pds[i], ":", 0);
926                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
927                                 g_strfreev(ids);
928                                 g_critical("Cannot stack protocol decoder '%s': "
929                                                 "instance not found.", pds[i]);
930                                 return 1;
931                         }
932                         g_strfreev(ids);
933                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
934                                 return 1;
935
936                         /* Don't show annotation from this PD. Only the last PD in
937                          * the stack will be left on the annotation list (unless
938                          * the annotation list was specifically provided).
939                          */
940                         if (!opt_pd_annotations)
941                                 g_hash_table_remove(pd_ann_visible,
942                                                     di_from->inst_id);
943
944                         di_from = di_to;
945                 }
946         }
947         g_strfreev(pds);
948
949         return 0;
950 }
951
952 int setup_pd_annotations(void)
953 {
954         GSList *l;
955         struct srd_decoder *dec;
956         int ann;
957         char **pds, **pdtok, **keyval, **ann_descr;
958
959         /* Set up custom list of PDs and annotations to show. */
960         if (opt_pd_annotations) {
961                 pds = g_strsplit(opt_pd_annotations, ",", 0);
962                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
963                         ann = 0;
964                         keyval = g_strsplit(*pdtok, "=", 0);
965                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
966                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
967                                 return 1;
968                         }
969                         if (!dec->annotations) {
970                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
971                                 return 1;
972                         }
973                         if (g_strv_length(keyval) == 2) {
974                                 for (l = dec->annotations; l; l = l->next, ann++) {
975                                         ann_descr = l->data;
976                                         if (!canon_cmp(ann_descr[0], keyval[1]))
977                                                 /* Found it. */
978                                                 break;
979                                 }
980                                 if (!l) {
981                                         g_critical("Annotation '%s' not found "
982                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
983                                         return 1;
984                                 }
985                         }
986                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
987                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
988                         g_strfreev(keyval);
989                 }
990                 g_strfreev(pds);
991         }
992
993         return 0;
994 }
995
996 int setup_output_format(void)
997 {
998         GHashTable *fmtargs;
999         GHashTableIter iter;
1000         gpointer key, value;
1001         struct sr_output_format **outputs;
1002         int i;
1003         char *fmtspec;
1004
1005         if (!opt_output_format) {
1006                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
1007                 /* we'll need to remember this so when saving to a file
1008                  * later, sigrok session format will be used.
1009                  */
1010                 default_output_format = TRUE;
1011         }
1012
1013         fmtargs = parse_generic_arg(opt_output_format, TRUE);
1014         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1015         if (!fmtspec) {
1016                 g_critical("Invalid output format.");
1017                 return 1;
1018         }
1019         outputs = sr_output_list();
1020         for (i = 0; outputs[i]; i++) {
1021                 if (strcmp(outputs[i]->id, fmtspec))
1022                         continue;
1023                 g_hash_table_remove(fmtargs, "sigrok_key");
1024                 output_format = outputs[i];
1025                 g_hash_table_iter_init(&iter, fmtargs);
1026                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1027                         /* only supporting one parameter per output module
1028                          * for now, and only its value */
1029                         output_format_param = g_strdup(value);
1030                         break;
1031                 }
1032                 break;
1033         }
1034         if (!output_format) {
1035                 g_critical("Invalid output format %s.", opt_output_format);
1036                 return 1;
1037         }
1038         g_hash_table_destroy(fmtargs);
1039
1040         return 0;
1041 }
1042
1043 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
1044 {
1045         int i;
1046         char **annotations;
1047         gpointer ann_format;
1048
1049         /* 'cb_data' is not used in this specific callback. */
1050         (void)cb_data;
1051
1052         if (!pd_ann_visible)
1053                 return;
1054
1055         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
1056                         NULL, &ann_format))
1057                 /* Not in the list of PDs whose annotations we're showing. */
1058                 return;
1059
1060         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
1061                 /* We don't want this particular format from the PD. */
1062                 return;
1063
1064         annotations = pdata->data;
1065         if (opt_loglevel > SR_LOG_WARN)
1066                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1067         printf("%s: ", pdata->pdo->proto_id);
1068         for (i = 0; annotations[i]; i++)
1069                 printf("\"%s\" ", annotations[i]);
1070         printf("\n");
1071         fflush(stdout);
1072 }
1073
1074 static int select_probes(struct sr_dev_inst *sdi)
1075 {
1076         struct sr_probe *probe;
1077         GSList *selected_probes, *l;
1078
1079         if (!opt_probes)
1080                 return SR_OK;
1081
1082         if (!(selected_probes = parse_probestring(sdi, opt_probes)))
1083                 return SR_ERR;
1084
1085         for (l = sdi->probes; l; l = l->next) {
1086                 probe = l->data;
1087                 if (g_slist_find(selected_probes, probe))
1088                         probe->enabled = TRUE;
1089                 else
1090                         probe->enabled = FALSE;
1091         }
1092         g_slist_free(selected_probes);
1093
1094         return SR_OK;
1095 }
1096
1097 /**
1098  * Return the input file format which the CLI tool should use.
1099  *
1100  * If the user specified -I / --input-format, use that one. Otherwise, try to
1101  * autodetect the format as good as possible. Failing that, return NULL.
1102  *
1103  * @param filename The filename of the input file. Must not be NULL.
1104  * @param opt The -I / --input-file option the user specified (or NULL).
1105  *
1106  * @return A pointer to the 'struct sr_input_format' that should be used,
1107  *         or NULL if no input format was selected or auto-detected.
1108  */
1109 static struct sr_input_format *determine_input_file_format(
1110                         const char *filename, const char *opt)
1111 {
1112         int i;
1113         struct sr_input_format **inputs;
1114
1115         /* If there are no input formats, return NULL right away. */
1116         inputs = sr_input_list();
1117         if (!inputs) {
1118                 g_critical("No supported input formats available.");
1119                 return NULL;
1120         }
1121
1122         /* If the user specified -I / --input-format, use that one. */
1123         if (opt) {
1124                 for (i = 0; inputs[i]; i++) {
1125                         if (strcasecmp(inputs[i]->id, opt))
1126                                 continue;
1127                         g_debug("Using user-specified input file format '%s'.",
1128                                         inputs[i]->id);
1129                         return inputs[i];
1130                 }
1131
1132                 /* The user specified an unknown input format, return NULL. */
1133                 g_critical("Error: specified input file format '%s' is "
1134                         "unknown.", opt);
1135                 return NULL;
1136         }
1137
1138         /* Otherwise, try to find an input module that can handle this file. */
1139         for (i = 0; inputs[i]; i++) {
1140                 if (inputs[i]->format_match(filename))
1141                         break;
1142         }
1143
1144         /* Return NULL if no input module wanted to touch this. */
1145         if (!inputs[i]) {
1146                 g_critical("Error: no matching input module found.");
1147                 return NULL;
1148         }
1149
1150         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1151                 inputs[i]->id, filename);
1152                 
1153         return inputs[i];
1154 }
1155
1156 static void load_input_file_format(void)
1157 {
1158         GHashTable *fmtargs = NULL;
1159         struct stat st;
1160         struct sr_input *in;
1161         struct sr_input_format *input_format;
1162         char *fmtspec = NULL;
1163
1164         if (opt_input_format) {
1165                 fmtargs = parse_generic_arg(opt_input_format, TRUE);
1166                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1167         }
1168
1169         if (!(input_format = determine_input_file_format(opt_input_file,
1170                                                    fmtspec))) {
1171                 /* The exact cause was already logged. */
1172                 return;
1173         }
1174
1175         if (fmtargs)
1176                 g_hash_table_remove(fmtargs, "sigrok_key");
1177
1178         if (stat(opt_input_file, &st) == -1) {
1179                 g_critical("Failed to load %s: %s", opt_input_file,
1180                         strerror(errno));
1181                 exit(1);
1182         }
1183
1184         /* Initialize the input module. */
1185         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1186                 g_critical("Failed to allocate input module.");
1187                 exit(1);
1188         }
1189         in->format = input_format;
1190         in->param = fmtargs;
1191         if (in->format->init) {
1192                 if (in->format->init(in) != SR_OK) {
1193                         g_critical("Input format init failed.");
1194                         exit(1);
1195                 }
1196         }
1197
1198         if (select_probes(in->sdi) > 0)
1199                 return;
1200
1201         sr_session_new();
1202         sr_session_datafeed_callback_add(datafeed_in);
1203         if (sr_session_dev_add(in->sdi) != SR_OK) {
1204                 g_critical("Failed to use device.");
1205                 sr_session_destroy();
1206                 return;
1207         }
1208
1209         input_format->loadfile(in, opt_input_file);
1210
1211         sr_session_destroy();
1212
1213         if (fmtargs)
1214                 g_hash_table_destroy(fmtargs);
1215 }
1216
1217 static void load_input_file(void)
1218 {
1219
1220         if (sr_session_load(opt_input_file) == SR_OK) {
1221                 /* sigrok session file */
1222                 sr_session_datafeed_callback_add(datafeed_in);
1223                 sr_session_start();
1224                 sr_session_run();
1225                 sr_session_stop();
1226         }
1227         else {
1228                 /* fall back on input modules */
1229                 load_input_file_format();
1230         }
1231 }
1232
1233 static int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
1234 {
1235         const struct sr_config_info *srci;
1236         GHashTableIter iter;
1237         gpointer key, value;
1238         int ret;
1239         float tmp_float;
1240         uint64_t tmp_u64;
1241         struct sr_rational tmp_rat;
1242         gboolean tmp_bool;
1243         void *val;
1244
1245         g_hash_table_iter_init(&iter, args);
1246         while (g_hash_table_iter_next(&iter, &key, &value)) {
1247                 if (!(srci = sr_config_info_name_get(key))) {
1248                         g_critical("Unknown device option '%s'.", (char *) key);
1249                         return SR_ERR;
1250                 }
1251
1252                 if ((value == NULL) &&
1253                         (srci->datatype != SR_T_BOOL)) {
1254                         g_critical("Option '%s' needs a value.", (char *)key);
1255                         return SR_ERR;
1256                 }
1257                 val = NULL;
1258                 switch (srci->datatype) {
1259                 case SR_T_UINT64:
1260                         ret = sr_parse_sizestring(value, &tmp_u64);
1261                         if (ret != SR_OK)
1262                                 break;
1263                         val = &tmp_u64;
1264                         break;
1265                 case SR_T_CHAR:
1266                         val = value;
1267                         break;
1268                 case SR_T_BOOL:
1269                         if (!value)
1270                                 tmp_bool = TRUE;
1271                         else
1272                                 tmp_bool = sr_parse_boolstring(value);
1273                         val = &tmp_bool;
1274                         break;
1275                 case SR_T_FLOAT:
1276                         tmp_float = strtof(value, NULL);
1277                         val = &tmp_float;
1278                         break;
1279                 case SR_T_RATIONAL_PERIOD:
1280                         if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1281                                 break;
1282                         val = &tmp_rat;
1283                         break;
1284                 case SR_T_RATIONAL_VOLT:
1285                         if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1286                                 break;
1287                         val = &tmp_rat;
1288                         break;
1289                 default:
1290                         ret = SR_ERR;
1291                 }
1292                 if (val)
1293                         ret = sr_dev_config_set(sdi, srci->key, val);
1294                 if (ret != SR_OK) {
1295                         g_critical("Failed to set device option '%s'.", (char *)key);
1296                         return ret;
1297                 }
1298         }
1299
1300         return SR_OK;
1301 }
1302
1303 static int set_limit_time(const struct sr_dev_inst *sdi)
1304 {
1305         uint64_t time_msec;
1306         uint64_t *samplerate;
1307
1308         time_msec = sr_parse_timestring(opt_time);
1309         if (time_msec == 0) {
1310                 g_critical("Invalid time '%s'", opt_time);
1311                 sr_session_destroy();
1312                 return SR_ERR;
1313         }
1314
1315         if (sr_driver_hwcap_exists(sdi->driver, SR_CONF_LIMIT_MSEC)) {
1316                 if (sr_dev_config_set(sdi, SR_CONF_LIMIT_MSEC, &time_msec) != SR_OK) {
1317                         g_critical("Failed to configure time limit.");
1318                         sr_session_destroy();
1319                         return SR_ERR;
1320                 }
1321         }
1322         else {
1323                 /* time limit set, but device doesn't support this...
1324                  * convert to samples based on the samplerate.
1325                  */
1326                 limit_samples = 0;
1327                 if (sr_dev_has_hwcap(sdi, SR_CONF_SAMPLERATE)) {
1328                         sr_info_get(sdi->driver, SR_CONF_SAMPLERATE,
1329                                         (const void **)&samplerate, sdi);
1330                         limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1331                 }
1332                 if (limit_samples == 0) {
1333                         g_critical("Not enough time at this samplerate.");
1334                         sr_session_destroy();
1335                         return SR_ERR;
1336                 }
1337
1338                 if (sr_dev_config_set(sdi, SR_CONF_LIMIT_SAMPLES,
1339                                         &limit_samples) != SR_OK) {
1340                         g_critical("Failed to configure time-based sample limit.");
1341                         sr_session_destroy();
1342                         return SR_ERR;
1343                 }
1344         }
1345
1346         return SR_OK;
1347 }
1348
1349 static void run_session(void)
1350 {
1351         GSList *devices;
1352         GHashTable *devargs;
1353         struct sr_dev_inst *sdi;
1354         int max_probes, i;
1355         char **triggerlist;
1356
1357         devices = device_scan();
1358         if (!devices) {
1359                 g_critical("No devices found.");
1360                 return;
1361         }
1362         if (g_slist_length(devices) > 1) {
1363                 g_critical("sigrok-cli only supports one device for capturing.");
1364                 return;
1365         }
1366         sdi = devices->data;
1367
1368         sr_session_new();
1369         sr_session_datafeed_callback_add(datafeed_in);
1370
1371         if (sr_session_dev_add(sdi) != SR_OK) {
1372                 g_critical("Failed to use device.");
1373                 sr_session_destroy();
1374                 return;
1375         }
1376
1377         if (opt_dev) {
1378                 if ((devargs = parse_generic_arg(opt_dev, FALSE))) {
1379                         if (set_dev_options(sdi, devargs) != SR_OK)
1380                                 return;
1381                         g_hash_table_destroy(devargs);
1382                 }
1383         }
1384
1385         if (select_probes(sdi) != SR_OK) {
1386                 g_critical("Failed to set probes.");
1387                 sr_session_destroy();
1388                 return;
1389         }
1390
1391         if (opt_triggers) {
1392                 if (!(triggerlist = sr_parse_triggerstring(sdi, opt_triggers))) {
1393                         sr_session_destroy();
1394                         return;
1395                 }
1396                 max_probes = g_slist_length(sdi->probes);
1397                 for (i = 0; i < max_probes; i++) {
1398                         if (triggerlist[i]) {
1399                                 sr_dev_trigger_set(sdi, i, triggerlist[i]);
1400                                 g_free(triggerlist[i]);
1401                         }
1402                 }
1403                 g_free(triggerlist);
1404         }
1405
1406         if (opt_continuous) {
1407                 if (!sr_driver_hwcap_exists(sdi->driver, SR_CONF_CONTINUOUS)) {
1408                         g_critical("This device does not support continuous sampling.");
1409                         sr_session_destroy();
1410                         return;
1411                 }
1412         }
1413
1414         if (opt_time) {
1415                 if (set_limit_time(sdi) != SR_OK) {
1416                         sr_session_destroy();
1417                         return;
1418                 }
1419         }
1420
1421         if (opt_samples) {
1422                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1423                                 || (sr_dev_config_set(sdi, SR_CONF_LIMIT_SAMPLES,
1424                                                 &limit_samples) != SR_OK)) {
1425                         g_critical("Failed to configure sample limit.");
1426                         sr_session_destroy();
1427                         return;
1428                 }
1429         }
1430
1431         if (opt_frames) {
1432                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1433                                 || (sr_dev_config_set(sdi, SR_CONF_LIMIT_FRAMES,
1434                                                 &limit_frames) != SR_OK)) {
1435                         g_critical("Failed to configure frame limit.");
1436                         sr_session_destroy();
1437                         return;
1438                 }
1439         }
1440
1441         if (sr_session_start() != SR_OK) {
1442                 g_critical("Failed to start session.");
1443                 sr_session_destroy();
1444                 return;
1445         }
1446
1447         if (opt_continuous)
1448                 add_anykey();
1449
1450         sr_session_run();
1451
1452         if (opt_continuous)
1453                 clear_anykey();
1454
1455         sr_session_destroy();
1456         g_slist_free(devices);
1457
1458 }
1459
1460 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1461                    const gchar *message, gpointer cb_data)
1462 {
1463         (void)log_domain;
1464         (void)cb_data;
1465
1466         /*
1467          * All messages, warnings, errors etc. go to stderr (not stdout) in
1468          * order to not mess up the CLI tool data output, e.g. VCD output.
1469          */
1470         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1471                         || opt_loglevel > SR_LOG_WARN) {
1472                 fprintf(stderr, "%s\n", message);
1473                 fflush(stderr);
1474         }
1475 }
1476
1477 int main(int argc, char **argv)
1478 {
1479         int ret = 1;
1480         GOptionContext *context;
1481         GError *error;
1482
1483         g_log_set_default_handler(logger, NULL);
1484
1485         error = NULL;
1486         context = g_option_context_new(NULL);
1487         g_option_context_add_main_entries(context, optargs, NULL);
1488
1489         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1490                 g_critical("%s", error->message);
1491                 goto done;
1492         }
1493
1494         /* Set the loglevel (amount of messages to output) for libsigrok. */
1495         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1496                 goto done;
1497
1498         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1499         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1500                 goto done;
1501
1502         if (sr_init(&sr_ctx) != SR_OK)
1503                 goto done;
1504
1505         if (opt_pds) {
1506                 if (srd_init(NULL) != SRD_OK)
1507                         goto done;
1508                 if (register_pds(NULL, opt_pds) != 0)
1509                         goto done;
1510                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1511                                 show_pd_annotations, NULL) != SRD_OK)
1512                         goto done;
1513                 if (setup_pd_stack() != 0)
1514                         goto done;
1515                 if (setup_pd_annotations() != 0)
1516                         goto done;
1517         }
1518
1519         if (setup_output_format() != 0)
1520                 goto done;
1521
1522         if (opt_version)
1523                 show_version();
1524         else if (opt_list_devs)
1525                 show_dev_list();
1526         else if (opt_pds && opt_show)
1527                 show_pd_detail();
1528         else if (opt_show)
1529                 show_dev_detail();
1530         else if (opt_input_file)
1531                 load_input_file();
1532         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1533                 run_session();
1534         else
1535                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1536
1537         if (opt_pds)
1538                 srd_exit();
1539
1540         ret = 0;
1541
1542 done:
1543         if (sr_ctx)
1544                 sr_exit(sr_ctx);
1545
1546         g_option_context_free(context);
1547
1548         return ret;
1549 }