cli: not doing sigrokdecode directly from analog data
[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 <sigrok.h>
34 #include "sigrok-cli.h"
35 #include "config.h"
36
37 #define DEFAULT_OUTPUT_FORMAT "bits:width=64"
38
39 extern struct sr_hwcap_option sr_hwcap_options[];
40
41 static 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 char *input_format_param = NULL;
47 static GHashTable *pd_ann_visible = NULL;
48
49 static gboolean opt_version = FALSE;
50 static gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */
51 static gboolean opt_list_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_dev = NULL;
56 static gchar *opt_probes = NULL;
57 static gchar *opt_triggers = NULL;
58 static gchar *opt_pds = NULL;
59 static gchar *opt_pd_stack = NULL;
60 static gchar *opt_pd_annotations = NULL;
61 static gchar *opt_input_format = NULL;
62 static gchar *opt_output_format = NULL;
63 static gchar *opt_time = NULL;
64 static gchar *opt_samples = NULL;
65 static gchar *opt_frames = NULL;
66 static gchar *opt_continuous = NULL;
67
68 static GOptionEntry optargs[] = {
69         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
70                         "Show version and support list", NULL},
71         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
72                         "Set libsigrok/libsigrokdecode loglevel", NULL},
73         {"list-devices", 'D', 0, G_OPTION_ARG_NONE, &opt_list_devs,
74                         "Scan for devices", NULL},
75         {"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev,
76                         "Use specified device", NULL},
77         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
78                         "Load input from file", NULL},
79         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
80                         "Input format", NULL},
81         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
82                         "Save output to file", NULL},
83         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
84                         "Output format", NULL},
85         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
86                         "Probes to use", NULL},
87         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
88                         "Trigger configuration", NULL},
89         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
90                         "Wait for trigger", NULL},
91         {"protocol-decoders", 'a', 0, G_OPTION_ARG_STRING, &opt_pds,
92                         "Protocol decoders to run", NULL},
93         {"protocol-decoder-stack", 's', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
94                         "Protocol decoder stack", NULL},
95         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
96                         "Protocol decoder annotation(s) to show", NULL},
97         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
98                         "How long to sample (ms)", NULL},
99         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
100                         "Number of samples to acquire", NULL},
101         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
102                         "Number of frames to acquire", NULL},
103         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
104                         "Sample continuously", NULL},
105         {NULL, 0, 0, 0, NULL, NULL, NULL}
106 };
107
108 static void show_version(void)
109 {
110         GSList *l;
111         struct sr_dev_driver **drivers;
112         struct sr_input_format **inputs;
113         struct sr_output_format **outputs;
114         struct srd_decoder *dec;
115         int i;
116
117         printf("sigrok-cli %s\n\n", VERSION);
118
119         printf("Using libsigrok %s (lib version %s).\n",
120                sr_package_version_string_get(), sr_lib_version_string_get());
121         printf("Using libsigrokdecode %s (lib version %s).\n\n",
122                srd_package_version_string_get(), srd_lib_version_string_get());
123
124         printf("Supported hardware drivers:\n");
125         drivers = sr_driver_list();
126         for (i = 0; drivers[i]; i++) {
127                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
128         }
129         printf("\n");
130
131         printf("Supported input formats:\n");
132         inputs = sr_input_list();
133         for (i = 0; inputs[i]; i++)
134                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
135         printf("\n");
136
137         printf("Supported output formats:\n");
138         outputs = sr_output_list();
139         for (i = 0; outputs[i]; i++)
140                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
141         printf("\n");
142
143         if (srd_init(NULL) == SRD_OK) {
144                 printf("Supported protocol decoders:\n");
145                 srd_decoder_load_all();
146                 for (l = srd_decoder_list(); l; l = l->next) {
147                         dec = l->data;
148                         printf("  %-20s %s\n", dec->id, dec->longname);
149                         /* Print protocol description upon "-l 3" or higher. */
150                         if (opt_loglevel >= SR_LOG_INFO)
151                                 printf("  %-20s %s\n", "", dec->desc);
152                 }
153                 srd_exit();
154         }
155         printf("\n");
156 }
157
158 static void print_dev_line(const struct sr_dev *dev)
159 {
160         const struct sr_dev_inst *sdi;
161
162         sr_dev_info_get(dev, SR_DI_INST, (const void **)&sdi);
163
164         if (sdi->vendor && sdi->vendor[0])
165                 printf("%s ", sdi->vendor);
166         if (sdi->model && sdi->model[0])
167                 printf("%s ", sdi->model);
168         if (sdi->version && sdi->version[0])
169                 printf("%s ", sdi->version);
170         if (dev->probes)
171                 printf("with %d probes", g_slist_length(dev->probes));
172         printf("\n");
173 }
174
175 static void show_dev_list(void)
176 {
177         struct sr_dev *dev, *demo_dev;
178         GSList *devs, *l;
179         int devcnt;
180
181         devcnt = 0;
182         devs = sr_dev_list();
183
184         if (g_slist_length(devs) == 0)
185                 return;
186
187         printf("The following devices were found:\nID    Device\n");
188         demo_dev = NULL;
189         for (l = devs; l; l = l->next) {
190                 dev = l->data;
191                 if (sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV)) {
192                         demo_dev = dev;
193                         continue;
194                 }
195                 printf("%-3d   ", devcnt++);
196                 print_dev_line(dev);
197         }
198         if (demo_dev) {
199                 printf("demo  ");
200                 print_dev_line(demo_dev);
201         }
202 }
203
204 static void show_dev_detail(void)
205 {
206         struct sr_dev *dev;
207         const struct sr_hwcap_option *hwo;
208         const struct sr_samplerates *samplerates;
209         struct sr_rational *rationals;
210         uint64_t *integers;
211         const int *hwcaps;
212         int cap, i;
213         char *s, *title;
214         const char *charopts, **stropts;
215
216         dev = parse_devstring(opt_dev);
217         if (!dev) {
218                 printf("No such device. Use -D to list all devices.\n");
219                 return;
220         }
221
222         print_dev_line(dev);
223
224         if (sr_dev_info_get(dev, SR_DI_TRIGGER_TYPES,
225                                         (const void **)&charopts) == SR_OK) {
226                 printf("Supported triggers: ");
227                 while (*charopts) {
228                         printf("%c ", *charopts);
229                         charopts++;
230                 }
231                 printf("\n");
232         }
233
234         title = "Supported options:\n";
235         hwcaps = dev->driver->hwcap_get_all();
236         for (cap = 0; hwcaps[cap]; cap++) {
237                 if (!(hwo = sr_hw_hwcap_get(hwcaps[cap])))
238                         continue;
239
240                 if (title) {
241                         printf("%s", title);
242                         title = NULL;
243                 }
244
245                 if (hwo->hwcap == SR_HWCAP_PATTERN_MODE) {
246                         /* Pattern generator modes */
247                         printf("    %s", hwo->shortname);
248                         if (sr_dev_info_get(dev, SR_DI_PATTERNS,
249                                         (const void **)&stropts) == SR_OK) {
250                                 printf(" - supported patterns:\n");
251                                 for (i = 0; stropts[i]; i++)
252                                         printf("      %s\n", stropts[i]);
253                         } else {
254                                 printf("\n");
255                         }
256
257                 } else if (hwo->hwcap == SR_HWCAP_SAMPLERATE) {
258                         /* Supported samplerates */
259                         printf("    %s", hwo->shortname);
260                         if (sr_dev_info_get(dev, SR_DI_SAMPLERATES,
261                                         (const void **)&samplerates) != SR_OK) {
262                                 printf("\n");
263                                 continue;
264                         }
265                         if (samplerates->step) {
266                                 /* low */
267                                 if (!(s = sr_samplerate_string(samplerates->low)))
268                                         continue;
269                                 printf(" (%s", s);
270                                 g_free(s);
271                                 /* high */
272                                 if (!(s = sr_samplerate_string(samplerates->high)))
273                                         continue;
274                                 printf(" - %s", s);
275                                 g_free(s);
276                                 /* step */
277                                 if (!(s = sr_samplerate_string(samplerates->step)))
278                                         continue;
279                                 printf(" in steps of %s)\n", s);
280                                 g_free(s);
281                         } else {
282                                 printf(" - supported samplerates:\n");
283                                 for (i = 0; samplerates->list[i]; i++)
284                                         printf("      %s\n", sr_samplerate_string(samplerates->list[i]));
285                         }
286
287                 } else if (hwo->hwcap == SR_HWCAP_BUFFERSIZE) {
288                         /* Supported buffer sizes */
289                         printf("    %s", hwo->shortname);
290                         if (sr_dev_info_get(dev, SR_DI_BUFFERSIZES,
291                                         (const void **)&integers) != SR_OK) {
292                                 printf("\n");
293                                 continue;
294                         }
295                         printf(" - supported buffer sizes:\n");
296                         for (i = 0; integers[i]; i++)
297                                 printf("      %"PRIu64"\n", integers[i]);
298
299                 } else if (hwo->hwcap == SR_HWCAP_TIMEBASE) {
300                         /* Supported time bases */
301                         printf("    %s", hwo->shortname);
302                         if (sr_dev_info_get(dev, SR_DI_TIMEBASES,
303                                         (const void **)&rationals) != SR_OK) {
304                                 printf("\n");
305                                 continue;
306                         }
307                         printf(" - supported time bases:\n");
308                         for (i = 0; rationals[i].p && rationals[i].q; i++)
309                                 printf("      %s\n", sr_period_string(
310                                                 rationals[i].p * rationals[i].q));
311
312                 } else if (hwo->hwcap == SR_HWCAP_TRIGGER_SOURCE) {
313                         /* Supported trigger sources */
314                         printf("    %s", hwo->shortname);
315                         if (sr_dev_info_get(dev, SR_DI_TRIGGER_SOURCES,
316                                         (const void **)&stropts) != SR_OK) {
317                                 printf("\n");
318                                 continue;
319                         }
320                         printf(" - supported trigger sources:\n");
321                         for (i = 0; stropts[i]; i++)
322                                 printf("      %s\n", stropts[i]);
323
324                 } else if (hwo->hwcap == SR_HWCAP_FILTER) {
325                         /* Supported trigger sources */
326                         printf("    %s", hwo->shortname);
327                         if (sr_dev_info_get(dev, SR_DI_FILTERS,
328                                         (const void **)&stropts) != SR_OK) {
329                                 printf("\n");
330                                 continue;
331                         }
332                         printf(" - supported filter targets:\n");
333                         for (i = 0; stropts[i]; i++)
334                                 printf("      %s\n", stropts[i]);
335
336                 } else if (hwo->hwcap == SR_HWCAP_VDIV) {
337                         /* Supported volts/div values */
338                         printf("    %s", hwo->shortname);
339                         if (sr_dev_info_get(dev, SR_DI_VDIVS,
340                                         (const void **)&rationals) != SR_OK) {
341                                 printf("\n");
342                                 continue;
343                         }
344                         printf(" - supported volts/div:\n");
345                         for (i = 0; rationals[i].p && rationals[i].q; i++)
346                                 printf("      %s\n", sr_voltage_string( &rationals[i]));
347
348                 } else if (hwo->hwcap == SR_HWCAP_COUPLING) {
349                         /* Supported coupling settings */
350                         printf("    %s", hwo->shortname);
351                         if (sr_dev_info_get(dev, SR_DI_COUPLING,
352                                         (const void **)&stropts) != SR_OK) {
353                                 printf("\n");
354                                 continue;
355                         }
356                         printf(" - supported coupling options:\n");
357                         for (i = 0; stropts[i]; i++)
358                                 printf("      %s\n", stropts[i]);
359
360                 } else {
361                         /* Everything else */
362                         printf("    %s\n", hwo->shortname);
363                 }
364         }
365 }
366
367 static void show_pd_detail(void)
368 {
369         GSList *l;
370         struct srd_decoder *dec;
371         char **pdtokens, **pdtok, **ann, *doc;
372         struct srd_probe *p;
373
374         pdtokens = g_strsplit(opt_pds, ",", -1);
375         for (pdtok = pdtokens; *pdtok; pdtok++) {
376                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
377                         printf("Protocol decoder %s not found.\n", *pdtok);
378                         return;
379                 }
380                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
381                                 dec->id, dec->name, dec->longname, dec->desc);
382                 printf("License: %s\n", dec->license);
383                 printf("Annotations:\n");
384                 if (dec->annotations) {
385                         for (l = dec->annotations; l; l = l->next) {
386                                 ann = l->data;
387                                 printf("- %s\n  %s\n", ann[0], ann[1]);
388                         }
389                 } else {
390                         printf("None.\n");
391                 }
392                 /* TODO: Print supported decoder options. */
393                 printf("Required probes:\n");
394                 if (dec->probes) {
395                         for (l = dec->probes; l; l = l->next) {
396                                 p = l->data;
397                                 printf("- %s (%s): %s\n",
398                                        p->name, p->id, p->desc);
399                         }
400                 } else {
401                         printf("None.\n");
402                 }
403                 printf("Optional probes:\n");
404                 if (dec->opt_probes) {
405                         for (l = dec->opt_probes; l; l = l->next) {
406                                 p = l->data;
407                                 printf("- %s (%s): %s\n",
408                                        p->name, p->id, p->desc);
409                         }
410                 } else {
411                         printf("None.\n");
412                 }
413                 if ((doc = srd_decoder_doc_get(dec))) {
414                         printf("Documentation:\n%s\n",
415                                doc[0] == '\n' ? doc + 1 : doc);
416                         g_free(doc);
417                 }
418         }
419
420         g_strfreev(pdtokens);
421 }
422
423 static void datafeed_in(struct sr_dev *dev, struct sr_datafeed_packet *packet)
424 {
425         static struct sr_output *o = NULL;
426         static int logic_probelist[SR_MAX_NUM_PROBES] = { 0 };
427         static struct sr_probe *analog_probelist[SR_MAX_NUM_PROBES];
428         static uint64_t received_samples = 0;
429         static int unitsize = 0;
430         static int triggered = 0;
431         static FILE *outfile = NULL;
432         static int num_analog_probes = 0;
433         struct sr_probe *probe;
434         struct sr_datafeed_logic *logic;
435         struct sr_datafeed_meta_logic *meta_logic;
436         struct sr_datafeed_analog *analog;
437         struct sr_datafeed_meta_analog *meta_analog;
438         static int num_enabled_analog_probes = 0;
439         int num_enabled_probes, sample_size, data_offset, ret, i, j;
440         uint64_t output_len, filter_out_len;
441         uint8_t *output_buf, *filter_out;
442         float asample;
443
444         /* If the first packet to come in isn't a header, don't even try. */
445         if (packet->type != SR_DF_HEADER && o == NULL)
446                 return;
447
448         sample_size = -1;
449         switch (packet->type) {
450         case SR_DF_HEADER:
451                 g_debug("cli: Received SR_DF_HEADER");
452                 /* Initialize the output module. */
453                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
454                         g_critical("Output module malloc failed.");
455                         exit(1);
456                 }
457                 o->format = output_format;
458                 o->dev = dev;
459                 o->param = output_format_param;
460                 if (o->format->init) {
461                         if (o->format->init(o) != SR_OK) {
462                                 g_critical("Output format initialization failed.");
463                                 exit(1);
464                         }
465                 }
466                 break;
467
468         case SR_DF_END:
469                 g_debug("cli: Received SR_DF_END");
470                 if (!o) {
471                         g_debug("cli: double end!");
472                         break;
473                 }
474                 if (o->format->event) {
475                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
476                         if (output_buf) {
477                                 if (outfile)
478                                         fwrite(output_buf, 1, output_len, outfile);
479                                 g_free(output_buf);
480                                 output_len = 0;
481                         }
482                 }
483                 if (limit_samples && received_samples < limit_samples)
484                         g_warning("Device only sent %" PRIu64 " samples.",
485                                received_samples);
486                 if (opt_continuous)
487                         g_warning("Device stopped after %" PRIu64 " samples.",
488                                received_samples);
489                 sr_session_halt();
490                 if (outfile && outfile != stdout)
491                         fclose(outfile);
492                 g_free(o);
493                 o = NULL;
494                 break;
495
496         case SR_DF_TRIGGER:
497                 g_debug("cli: received SR_DF_TRIGGER");
498                 if (o->format->event)
499                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
500                                          &output_len);
501                 triggered = 1;
502                 break;
503
504         case SR_DF_META_LOGIC:
505                 g_message("cli: Received SR_DF_META_LOGIC");
506                 meta_logic = packet->payload;
507                 num_enabled_probes = 0;
508                 for (i = 0; i < meta_logic->num_probes; i++) {
509                         probe = g_slist_nth_data(dev->probes, i);
510                         if (probe->enabled)
511                                 logic_probelist[num_enabled_probes++] = probe->index;
512                 }
513                 /* How many bytes we need to store num_enabled_probes bits */
514                 unitsize = (num_enabled_probes + 7) / 8;
515
516                 outfile = stdout;
517                 if (opt_output_file) {
518                         if (default_output_format) {
519                                 /* output file is in session format, which means we'll
520                                  * dump everything in the datastore as it comes in,
521                                  * and save from there after the session. */
522                                 outfile = NULL;
523                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
524                                 if (ret != SR_OK) {
525                                         printf("Failed to create datastore.\n");
526                                         exit(1);
527                                 }
528                         } else {
529                                 /* saving to a file in whatever format was set
530                                  * with --format, so all we need is a filehandle */
531                                 outfile = g_fopen(opt_output_file, "wb");
532                         }
533                 }
534                 if (opt_pds)
535                         srd_session_start(num_enabled_probes, unitsize,
536                                         meta_logic->samplerate);
537                 break;
538
539         case SR_DF_LOGIC:
540                 logic = packet->payload;
541                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
542                 sample_size = logic->unitsize;
543                 if (logic->length == 0)
544                         break;
545
546                 /* Don't store any samples until triggered. */
547                 if (opt_wait_trigger && !triggered)
548                         break;
549
550                 if (limit_samples && received_samples >= limit_samples)
551                         break;
552
553                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
554                                            logic->data, logic->length,
555                                            &filter_out, &filter_out_len);
556                 if (ret != SR_OK)
557                         break;
558
559                 /* what comes out of the filter is guaranteed to be packed into the
560                  * minimum size needed to support the number of samples at this sample
561                  * size. however, the driver may have submitted too much -- cut off
562                  * the buffer of the last packet according to the sample limit.
563                  */
564                 if (limit_samples && (received_samples + logic->length / sample_size >
565                                 limit_samples * sample_size))
566                         filter_out_len = limit_samples * sample_size - received_samples;
567
568                 if (dev->datastore)
569                         sr_datastore_put(dev->datastore, filter_out,
570                                          filter_out_len, sample_size, logic_probelist);
571
572                 if (opt_output_file && default_output_format)
573                         /* saving to a session file, don't need to do anything else
574                          * to this data for now. */
575                         goto cleanup;
576
577                 if (opt_pds) {
578                         if (srd_session_send(received_samples, (uint8_t*)filter_out,
579                                         filter_out_len) != SRD_OK)
580                                 sr_session_halt();
581                 } else {
582                         output_len = 0;
583                         if (o->format->data && packet->type == o->format->df_type)
584                                 o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
585                         if (output_buf) {
586                                 fwrite(output_buf, 1, output_len, outfile);
587                                 g_free(output_buf);
588                         }
589                 }
590
591                 cleanup:
592                 g_free(filter_out);
593                 received_samples += logic->length / sample_size;
594                 break;
595
596         case SR_DF_META_ANALOG:
597                 g_message("cli: Received SR_DF_META_ANALOG");
598                 meta_analog = packet->payload;
599                 num_analog_probes = meta_analog->num_probes;
600                 num_enabled_analog_probes = 0;
601                 for (i = 0; i < num_analog_probes; i++) {
602                         probe = g_slist_nth_data(dev->probes, i);
603                         if (probe->enabled)
604                                 analog_probelist[num_enabled_analog_probes++] = probe;
605                 }
606
607                 outfile = stdout;
608                 if (opt_output_file) {
609                         if (default_output_format) {
610                                 /* output file is in session format, which means we'll
611                                  * dump everything in the datastore as it comes in,
612                                  * and save from there after the session. */
613                                 outfile = NULL;
614                                 ret = sr_datastore_new(unitsize, &(dev->datastore));
615                                 if (ret != SR_OK) {
616                                         printf("Failed to create datastore.\n");
617                                         exit(1);
618                                 }
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                 break;
626
627         case SR_DF_ANALOG:
628                 analog = packet->payload;
629                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
630                 if (analog->num_samples == 0)
631                         break;
632
633                 if (limit_samples && received_samples >= limit_samples)
634                         break;
635
636                 data_offset = 0;
637                 for (i = 0; i < analog->num_samples; i++) {
638                         for (j = 0; j < num_enabled_analog_probes; j++) {
639                                 asample = analog->data[data_offset++];
640                                 printf("%s: %f\n", analog_probelist[j]->name, asample);
641                         }
642 //                      asample1 = asample2 = 0.0;
643 //                      asample1 = analog->data[data_offset++];
644 //                      asample2 = analog->data[i * num_analog_probes + 1];
645 //                      printf("%d\t%f\t%f\n", received_samples+i+1, asample1, asample2);
646                 }
647
648 //              output_len = 0;
649 //              if (o->format->data && packet->type == o->format->df_type)
650 //                      o->format->data(o, filter_out, filter_out_len, &output_buf, &output_len);
651
652                 received_samples += analog->num_samples;
653                 break;
654
655         case SR_DF_FRAME_BEGIN:
656                 /* TODO */
657                 printf("BEGIN\n");
658                 break;
659
660         case SR_DF_FRAME_END:
661                 /* TODO */
662                 printf("END\n");
663                 break;
664
665         default:
666                 g_message("received unknown packet type %d", packet->type);
667         }
668
669 }
670
671 /* Register the given PDs for this session.
672  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
673  * That will instantiate two SPI decoders on the clock but different data
674  * lines.
675  */
676 static int register_pds(struct sr_dev *dev, const char *pdstring)
677 {
678         GHashTable *pd_opthash;
679         struct srd_decoder_inst *di;
680         int ret;
681         char **pdtokens, **pdtok, *pd_name;
682
683         /* Avoid compiler warnings. */
684         (void)dev;
685
686         ret = 0;
687         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
688                         g_free, NULL);
689         pd_name = NULL;
690         pd_opthash = NULL;
691         pdtokens = g_strsplit(pdstring, ",", 0);
692         for (pdtok = pdtokens; *pdtok; pdtok++) {
693                 if (!(pd_opthash = parse_generic_arg(*pdtok))) {
694                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
695                         goto err_out;
696                 }
697
698                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
699                 g_hash_table_remove(pd_opthash, "sigrok_key");
700                 if (srd_decoder_load(pd_name) != SRD_OK) {
701                         g_critical("Failed to load protocol decoder %s.", pd_name);
702                         ret = 1;
703                         goto err_out;
704                 }
705                 if (!(di = srd_inst_new(pd_name, pd_opthash))) {
706                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
707                         ret = 1;
708                         goto err_out;
709                 }
710
711                 /* If no annotation list was specified, add them all in now.
712                  * This will be pared down later to leave only the last PD
713                  * in the stack.
714                  */
715                 if (!opt_pd_annotations)
716                         g_hash_table_insert(pd_ann_visible,
717                                             g_strdup(di->inst_id), NULL);
718
719                 /* Any keys left in the options hash are probes, where the key
720                  * is the probe name as specified in the decoder class, and the
721                  * value is the probe number i.e. the order in which the PD's
722                  * incoming samples are arranged. */
723                 if (srd_inst_probe_set_all(di, pd_opthash) != SRD_OK) {
724                         ret = 1;
725                         goto err_out;
726                 }
727                 g_hash_table_destroy(pd_opthash);
728                 pd_opthash = NULL;
729         }
730
731 err_out:
732         g_strfreev(pdtokens);
733         if (pd_opthash)
734                 g_hash_table_destroy(pd_opthash);
735         if (pd_name)
736                 g_free(pd_name);
737
738         return ret;
739 }
740
741 int setup_pd_stack(void)
742 {
743         struct srd_decoder_inst *di_from, *di_to;
744         int ret, i;
745         char **pds, **ids;
746
747         /* Set up the protocol decoder stack. */
748         pds = g_strsplit(opt_pds, ",", 0);
749         if (g_strv_length(pds) > 1) {
750                 if (opt_pd_stack) {
751                         /* A stack setup was specified, use that. */
752                         g_strfreev(pds);
753                         pds = g_strsplit(opt_pd_stack, ",", 0);
754                         if (g_strv_length(pds) < 2) {
755                                 g_strfreev(pds);
756                                 g_critical("Specify at least two protocol decoders to stack.");
757                                 return 1;
758                         }
759                 }
760
761                 /* First PD goes at the bottom of the stack. */
762                 ids = g_strsplit(pds[0], ":", 0);
763                 if (!(di_from = srd_inst_find_by_id(ids[0]))) {
764                         g_strfreev(ids);
765                         g_critical("Cannot stack protocol decoder '%s': "
766                                         "instance not found.", pds[0]);
767                         return 1;
768                 }
769                 g_strfreev(ids);
770
771                 /* Every subsequent PD goes on top. */
772                 for (i = 1; pds[i]; i++) {
773                         ids = g_strsplit(pds[i], ":", 0);
774                         if (!(di_to = srd_inst_find_by_id(ids[0]))) {
775                                 g_strfreev(ids);
776                                 g_critical("Cannot stack protocol decoder '%s': "
777                                                 "instance not found.", pds[i]);
778                                 return 1;
779                         }
780                         g_strfreev(ids);
781                         if ((ret = srd_inst_stack(di_from, di_to)) != SRD_OK)
782                                 return 1;
783
784                         /* Don't show annotation from this PD. Only the last PD in
785                          * the stack will be left on the annotation list (unless
786                          * the annotation list was specifically provided).
787                          */
788                         if (!opt_pd_annotations)
789                                 g_hash_table_remove(pd_ann_visible,
790                                                     di_from->inst_id);
791
792                         di_from = di_to;
793                 }
794         }
795         g_strfreev(pds);
796
797         return 0;
798 }
799
800 int setup_pd_annotations(void)
801 {
802         GSList *l;
803         struct srd_decoder *dec;
804         int ann;
805         char **pds, **pdtok, **keyval, **ann_descr;
806
807         /* Set up custom list of PDs and annotations to show. */
808         if (opt_pd_annotations) {
809                 pds = g_strsplit(opt_pd_annotations, ",", 0);
810                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
811                         ann = 0;
812                         keyval = g_strsplit(*pdtok, "=", 0);
813                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
814                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
815                                 return 1;
816                         }
817                         if (!dec->annotations) {
818                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
819                                 return 1;
820                         }
821                         if (g_strv_length(keyval) == 2) {
822                                 for (l = dec->annotations; l; l = l->next, ann++) {
823                                         ann_descr = l->data;
824                                         if (!canon_cmp(ann_descr[0], keyval[1]))
825                                                 /* Found it. */
826                                                 break;
827                                 }
828                                 if (!l) {
829                                         g_critical("Annotation '%s' not found "
830                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
831                                         return 1;
832                                 }
833                         }
834                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
835                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
836                         g_strfreev(keyval);
837                 }
838                 g_strfreev(pds);
839         }
840
841         return 0;
842 }
843
844 int setup_output_format(void)
845 {
846         GHashTable *fmtargs;
847         GHashTableIter iter;
848         gpointer key, value;
849         struct sr_output_format **outputs;
850         int i;
851         char *fmtspec;
852
853         if (!opt_output_format) {
854                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
855                 /* we'll need to remember this so when saving to a file
856                  * later, sigrok session format will be used.
857                  */
858                 default_output_format = TRUE;
859         }
860         fmtargs = parse_generic_arg(opt_output_format);
861         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
862         if (!fmtspec) {
863                 g_critical("Invalid output format.");
864                 return 1;
865         }
866         outputs = sr_output_list();
867         for (i = 0; outputs[i]; i++) {
868                 if (strcmp(outputs[i]->id, fmtspec))
869                         continue;
870                 g_hash_table_remove(fmtargs, "sigrok_key");
871                 output_format = outputs[i];
872                 g_hash_table_iter_init(&iter, fmtargs);
873                 while (g_hash_table_iter_next(&iter, &key, &value)) {
874                         /* only supporting one parameter per output module
875                          * for now, and only its value */
876                         output_format_param = g_strdup(value);
877                         break;
878                 }
879                 break;
880         }
881         if (!output_format) {
882                 g_critical("Invalid output format %s.", opt_output_format);
883                 return 1;
884         }
885         g_hash_table_destroy(fmtargs);
886
887         return 0;
888 }
889
890 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
891 {
892         int i;
893         char **annotations;
894         gpointer ann_format;
895
896         /* 'cb_data' is not used in this specific callback. */
897         (void)cb_data;
898
899         if (!pd_ann_visible)
900                 return;
901
902         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
903                         NULL, &ann_format))
904                 /* Not in the list of PDs whose annotations we're showing. */
905                 return;
906
907         if (pdata->ann_format != GPOINTER_TO_INT(ann_format))
908                 /* We don't want this particular format from the PD. */
909                 return;
910
911         annotations = pdata->data;
912         if (opt_loglevel > SR_LOG_WARN)
913                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
914         printf("%s: ", pdata->pdo->proto_id);
915         for (i = 0; annotations[i]; i++)
916                 printf("\"%s\" ", annotations[i]);
917         printf("\n");
918 }
919
920 static int select_probes(struct sr_dev *dev)
921 {
922         struct sr_probe *probe;
923         char **probelist;
924         int max_probes, i;
925
926         if (!opt_probes)
927                 return SR_OK;
928
929         /*
930          * This only works because a device by default initializes
931          * and enables all its probes.
932          */
933         max_probes = g_slist_length(dev->probes);
934         probelist = parse_probestring(max_probes, opt_probes);
935         if (!probelist) {
936                 return SR_ERR;
937         }
938
939         for (i = 0; i < max_probes; i++) {
940                 if (probelist[i]) {
941                         sr_dev_probe_name_set(dev, i + 1, probelist[i]);
942                         g_free(probelist[i]);
943                 } else {
944                         probe = sr_dev_probe_find(dev, i + 1);
945                         probe->enabled = FALSE;
946                 }
947         }
948         g_free(probelist);
949
950         return SR_OK;
951 }
952
953 /**
954  * Return the input file format which the CLI tool should use.
955  *
956  * If the user specified -I / --input-format, use that one. Otherwise, try to
957  * autodetect the format as good as possible. Failing that, return NULL.
958  *
959  * @param filename The filename of the input file. Must not be NULL.
960  * @param opt The -I / --input-file option the user specified (or NULL).
961  *
962  * @return A pointer to the 'struct sr_input_format' that should be used,
963  *         or NULL if no input format was selected or auto-detected.
964  */
965 static struct sr_input_format *determine_input_file_format(
966                         const char *filename, const char *opt)
967 {
968         int i;
969         struct sr_input_format **inputs;
970
971         /* If there are no input formats, return NULL right away. */
972         inputs = sr_input_list();
973         if (!inputs) {
974                 g_critical("No supported input formats available.");
975                 return NULL;
976         }
977
978         /* If the user specified -I / --input-format, use that one. */
979         if (opt) {
980                 for (i = 0; inputs[i]; i++) {
981                         if (strcasecmp(inputs[i]->id, opt_input_format))
982                                 continue;
983                         g_debug("Using user-specified input file format '%s'.",
984                                         inputs[i]->id);
985                         return inputs[i];
986                 }
987
988                 /* The user specified an unknown input format, return NULL. */
989                 g_critical("Error: specified input file format '%s' is "
990                         "unknown.", opt_input_format);
991                 return NULL;
992         }
993
994         /* Otherwise, try to find an input module that can handle this file. */
995         for (i = 0; inputs[i]; i++) {
996                 if (inputs[i]->format_match(filename))
997                         break;
998         }
999
1000         /* Return NULL if no input module wanted to touch this. */
1001         if (!inputs[i]) {
1002                 g_critical("Error: no matching input module found.");
1003                 return NULL;
1004         }
1005
1006         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1007                 inputs[i]->id, filename);
1008                 
1009         return inputs[i];
1010 }
1011
1012 static void load_input_file_format(void)
1013 {
1014         struct stat st;
1015         struct sr_input *in;
1016         struct sr_input_format *input_format;
1017
1018         if (!(input_format = determine_input_file_format(opt_input_file,
1019                                                    opt_input_format)))
1020                 /* The exact cause was already logged. */
1021                 return;
1022
1023         if (stat(opt_input_file, &st) == -1) {
1024                 g_critical("Failed to load %s: %s", opt_input_file,
1025                         strerror(errno));
1026                 exit(1);
1027         }
1028
1029         /* Initialize the input module. */
1030         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1031                 g_critical("Failed to allocate input module.");
1032                 exit(1);
1033         }
1034         in->format = input_format;
1035         in->param = input_format_param;
1036         if (in->format->init) {
1037                 if (in->format->init(in) != SR_OK) {
1038                         g_critical("Input format init failed.");
1039                         exit(1);
1040                 }
1041         }
1042
1043         if (select_probes(in->vdev) > 0)
1044             return;
1045
1046         sr_session_new();
1047         sr_session_datafeed_callback_add(datafeed_in);
1048         if (sr_session_dev_add(in->vdev) != SR_OK) {
1049                 g_critical("Failed to use device.");
1050                 sr_session_destroy();
1051                 return;
1052         }
1053
1054         input_format->loadfile(in, opt_input_file);
1055         if (opt_output_file && default_output_format) {
1056                 if (sr_session_save(opt_output_file) != SR_OK)
1057                         g_critical("Failed to save session.");
1058         }
1059         sr_session_destroy();
1060 }
1061
1062 static void load_input_file(void)
1063 {
1064
1065         if (sr_session_load(opt_input_file) == SR_OK) {
1066                 /* sigrok session file */
1067                 sr_session_datafeed_callback_add(datafeed_in);
1068                 sr_session_start();
1069                 sr_session_run();
1070                 sr_session_stop();
1071         }
1072         else {
1073                 /* fall back on input modules */
1074                 load_input_file_format();
1075         }
1076 }
1077
1078 int num_real_devs(void)
1079 {
1080         struct sr_dev *dev;
1081         GSList *devs, *l;
1082         int num_devs;
1083
1084         num_devs = 0;
1085         devs = sr_dev_list();
1086         for (l = devs; l; l = l->next) {
1087                 dev = l->data;
1088                 if (!sr_dev_has_hwcap(dev, SR_HWCAP_DEMO_DEV))
1089                         num_devs++;
1090         }
1091
1092         return num_devs;
1093 }
1094
1095 static int set_dev_options(struct sr_dev *dev, GHashTable *args)
1096 {
1097         GHashTableIter iter;
1098         gpointer key, value;
1099         int ret, i;
1100         float tmp_float;
1101         uint64_t tmp_u64;
1102         struct sr_rational tmp_rat;
1103         gboolean tmp_bool;
1104         gboolean found;
1105
1106         g_hash_table_iter_init(&iter, args);
1107         while (g_hash_table_iter_next(&iter, &key, &value)) {
1108                 found = FALSE;
1109                 for (i = 0; sr_hwcap_options[i].hwcap; i++) {
1110                         if (strcmp(sr_hwcap_options[i].shortname, key))
1111                                 continue;
1112                         if ((value == NULL) && 
1113                             (sr_hwcap_options[i].type != SR_T_BOOL)) {
1114                                 g_critical("Option '%s' needs a value.", (char *)key);
1115                                 return SR_ERR;
1116                         }
1117                         found = TRUE;
1118                         switch (sr_hwcap_options[i].type) {
1119                         case SR_T_UINT64:
1120                                 ret = sr_parse_sizestring(value, &tmp_u64);
1121                                 if (ret != SR_OK)
1122                                         break;
1123                                 ret = dev->driver->dev_config_set(dev->driver_index,
1124                                         sr_hwcap_options[i].hwcap, &tmp_u64);
1125                                 break;
1126                         case SR_T_CHAR:
1127                                 ret = dev->driver->dev_config_set(dev->driver_index,
1128                                         sr_hwcap_options[i].hwcap, value);
1129                                 break;
1130                         case SR_T_BOOL:
1131                                 if (!value)
1132                                         tmp_bool = TRUE;
1133                                 else 
1134                                         tmp_bool = sr_parse_boolstring(value);
1135                                 ret = dev->driver->dev_config_set(dev->driver_index,
1136                                                 sr_hwcap_options[i].hwcap, 
1137                                                 GINT_TO_POINTER(tmp_bool));
1138                                 break;
1139                         case SR_T_FLOAT:
1140                                 tmp_float = strtof(value, NULL);
1141                                 ret = dev->driver->dev_config_set(dev->driver_index,
1142                                                 sr_hwcap_options[i].hwcap, &tmp_float);
1143                                 break;
1144                         case SR_T_RATIONAL_PERIOD:
1145                                 if ((ret = sr_parse_period(value, &tmp_rat)) != SR_OK)
1146                                         break;
1147                                 ret = dev->driver->dev_config_set(dev->driver_index,
1148                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1149                                 break;
1150                         case SR_T_RATIONAL_VOLT:
1151                                 if ((ret = sr_parse_voltage(value, &tmp_rat)) != SR_OK)
1152                                         break;
1153                                 ret = dev->driver->dev_config_set(dev->driver_index,
1154                                                 sr_hwcap_options[i].hwcap, &tmp_rat);
1155                                 break;
1156                         default:
1157                                 ret = SR_ERR;
1158                         }
1159
1160                         if (ret != SR_OK) {
1161                                 g_critical("Failed to set device option '%s'.", (char *)key);
1162                                 return ret;
1163                         }
1164                         else
1165                                 break;
1166                 }
1167                 if (!found) {
1168                         g_critical("Unknown device option '%s'.", (char *) key);
1169                         return SR_ERR;
1170                 }
1171         }
1172
1173         return SR_OK;
1174 }
1175
1176 static void run_session(void)
1177 {
1178         struct sr_dev *dev;
1179         GHashTable *devargs;
1180         int num_devs, max_probes, i;
1181         uint64_t time_msec;
1182         char **probelist, *devspec;
1183
1184         devargs = NULL;
1185         if (opt_dev) {
1186                 devargs = parse_generic_arg(opt_dev);
1187                 devspec = g_hash_table_lookup(devargs, "sigrok_key");
1188                 dev = parse_devstring(devspec);
1189                 if (!dev) {
1190                         g_critical("Device not found.");
1191                         return;
1192                 }
1193                 g_hash_table_remove(devargs, "sigrok_key");
1194         } else {
1195                 num_devs = num_real_devs();
1196                 if (num_devs == 1) {
1197                         /* No device specified, but there is only one. */
1198                         devargs = NULL;
1199                         dev = parse_devstring("0");
1200                 } else if (num_devs == 0) {
1201                         g_critical("No devices found.");
1202                         return;
1203                 } else {
1204                         g_critical("%d devices found, please select one.", num_devs);
1205                         return;
1206                 }
1207         }
1208
1209         sr_session_new();
1210         sr_session_datafeed_callback_add(datafeed_in);
1211
1212         if (sr_session_dev_add(dev) != SR_OK) {
1213                 g_critical("Failed to use device.");
1214                 sr_session_destroy();
1215                 return;
1216         }
1217
1218         if (devargs) {
1219                 if (set_dev_options(dev, devargs) != SR_OK) {
1220                         sr_session_destroy();
1221                         return;
1222                 }
1223                 g_hash_table_destroy(devargs);
1224         }
1225
1226         if (select_probes(dev) != SR_OK)
1227             return;
1228
1229         if (opt_continuous) {
1230                 if (!sr_driver_hwcap_exists(dev->driver, SR_HWCAP_CONTINUOUS)) {
1231                         g_critical("This device does not support continuous sampling.");
1232                         sr_session_destroy();
1233                         return;
1234                 }
1235         }
1236
1237         if (opt_triggers) {
1238                 probelist = sr_parse_triggerstring(dev, opt_triggers);
1239                 if (!probelist) {
1240                         sr_session_destroy();
1241                         return;
1242                 }
1243
1244                 max_probes = g_slist_length(dev->probes);
1245                 for (i = 0; i < max_probes; i++) {
1246                         if (probelist[i]) {
1247                                 sr_dev_trigger_set(dev, i + 1, probelist[i]);
1248                                 g_free(probelist[i]);
1249                         }
1250                 }
1251                 g_free(probelist);
1252         }
1253
1254         if (opt_time) {
1255                 time_msec = sr_parse_timestring(opt_time);
1256                 if (time_msec == 0) {
1257                         g_critical("Invalid time '%s'", opt_time);
1258                         sr_session_destroy();
1259                         return;
1260                 }
1261
1262                 if (sr_driver_hwcap_exists(dev->driver, SR_HWCAP_LIMIT_MSEC)) {
1263                         if (dev->driver->dev_config_set(dev->driver_index,
1264                             SR_HWCAP_LIMIT_MSEC, &time_msec) != SR_OK) {
1265                                 g_critical("Failed to configure time limit.");
1266                                 sr_session_destroy();
1267                                 return;
1268                         }
1269                 }
1270                 else {
1271                         /* time limit set, but device doesn't support this...
1272                          * convert to samples based on the samplerate.
1273                          */
1274                         limit_samples = 0;
1275                         if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
1276                                 const uint64_t *samplerate;
1277
1278                                 sr_dev_info_get(dev, SR_DI_CUR_SAMPLERATE,
1279                                                 (const void **)&samplerate);
1280                                 limit_samples = (*samplerate) * time_msec / (uint64_t)1000;
1281                         }
1282                         if (limit_samples == 0) {
1283                                 g_critical("Not enough time at this samplerate.");
1284                                 sr_session_destroy();
1285                                 return;
1286                         }
1287
1288                         if (dev->driver->dev_config_set(dev->driver_index,
1289                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK) {
1290                                 g_critical("Failed to configure time-based sample limit.");
1291                                 sr_session_destroy();
1292                                 return;
1293                         }
1294                 }
1295         }
1296
1297         if (opt_samples) {
1298                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)
1299                         || (dev->driver->dev_config_set(dev->driver_index,
1300                             SR_HWCAP_LIMIT_SAMPLES, &limit_samples) != SR_OK)) {
1301                         g_critical("Failed to configure sample limit.");
1302                         sr_session_destroy();
1303                         return;
1304                 }
1305         }
1306
1307         if (opt_frames) {
1308                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)
1309                         || (dev->driver->dev_config_set(dev->driver_index,
1310                             SR_HWCAP_LIMIT_FRAMES, &limit_frames) != SR_OK)) {
1311                         printf("Failed to configure frame limit.\n");
1312                         sr_session_destroy();
1313                         return;
1314                 }
1315         }
1316
1317         if (dev->driver->dev_config_set(dev->driver_index,
1318                   SR_HWCAP_PROBECONFIG, (char *)dev->probes) != SR_OK) {
1319                 g_critical("Failed to configure probes.");
1320                 sr_session_destroy();
1321                 return;
1322         }
1323
1324         if (sr_session_start() != SR_OK) {
1325                 g_critical("Failed to start session.");
1326                 sr_session_destroy();
1327                 return;
1328         }
1329
1330         if (opt_continuous)
1331                 add_anykey();
1332
1333         sr_session_run();
1334
1335         if (opt_continuous)
1336                 clear_anykey();
1337
1338         if (opt_output_file && default_output_format) {
1339                 if (sr_session_save(opt_output_file) != SR_OK)
1340                         g_critical("Failed to save session.");
1341         }
1342         sr_session_destroy();
1343 }
1344
1345 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1346                    const gchar *message, gpointer cb_data)
1347 {
1348         /* Avoid compiler warnings. */
1349         (void)log_domain;
1350         (void)cb_data;
1351
1352         /*
1353          * All messages, warnings, errors etc. go to stderr (not stdout) in
1354          * order to not mess up the CLI tool data output, e.g. VCD output.
1355          */
1356         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1357                         || opt_loglevel > SR_LOG_WARN) {
1358                 fprintf(stderr, "%s\n", message);
1359                 fflush(stderr);
1360         }
1361 }
1362
1363 int main(int argc, char **argv)
1364 {
1365         GOptionContext *context;
1366         GError *error;
1367
1368         g_log_set_default_handler(logger, NULL);
1369
1370         error = NULL;
1371         context = g_option_context_new(NULL);
1372         g_option_context_add_main_entries(context, optargs, NULL);
1373
1374         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1375                 g_critical("%s", error->message);
1376                 return 1;
1377         }
1378
1379         /* Set the loglevel (amount of messages to output) for libsigrok. */
1380         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1381                 return 1;
1382
1383         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1384         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1385                 return 1;
1386
1387         if (sr_init() != SR_OK)
1388                 return 1;
1389
1390         if (opt_pds) {
1391                 if (srd_init(NULL) != SRD_OK)
1392                         return 1;
1393                 if (register_pds(NULL, opt_pds) != 0)
1394                         return 1;
1395                 if (srd_pd_output_callback_add(SRD_OUTPUT_ANN,
1396                                 show_pd_annotations, NULL) != SRD_OK)
1397                         return 1;
1398                 if (setup_pd_stack() != 0)
1399                         return 1;
1400                 if (setup_pd_annotations() != 0)
1401                         return 1;
1402         }
1403
1404         if (setup_output_format() != 0)
1405                 return 1;
1406
1407         if (opt_version)
1408                 show_version();
1409         else if (opt_list_devs)
1410                 show_dev_list();
1411         else if (opt_input_file)
1412                 load_input_file();
1413         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1414                 run_session();
1415         else if (opt_dev)
1416                 show_dev_detail();
1417         else if (opt_pds)
1418                 show_pd_detail();
1419         else
1420                 printf("%s", g_option_context_get_help(context, TRUE, NULL));
1421
1422         if (opt_pds)
1423                 srd_exit();
1424
1425         g_option_context_free(context);
1426         sr_exit();
1427
1428         return 0;
1429 }