Use annotation-specific struct
[sigrok-cli.git] / sigrok-cli.c
1 /*
2  * This file is part of the sigrok-cli 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 "config.h"
21 #ifdef HAVE_SRD
22 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
23 #endif
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <unistd.h>
27 #include <string.h>
28 #include <time.h>
29 #include <sys/time.h>
30 #include <inttypes.h>
31 #include <sys/types.h>
32 #include <sys/stat.h>
33 #include <errno.h>
34 #include <glib.h>
35 #include <glib/gstdio.h>
36 #include <libsigrok/libsigrok.h>
37 #include "sigrok-cli.h"
38
39 #define DEFAULT_OUTPUT_FORMAT "bits:width=64"
40
41 static struct sr_context *sr_ctx = NULL;
42
43 static uint64_t limit_samples = 0;
44 static uint64_t limit_frames = 0;
45 static struct sr_output_format *output_format = NULL;
46 static int default_output_format = FALSE;
47 static char *output_format_param = NULL;
48 #ifdef HAVE_SRD
49 static struct srd_session *srd_sess = NULL;
50 static GHashTable *pd_ann_visible = NULL;
51 #endif
52 static GByteArray *savebuf;
53
54 static gboolean opt_version = FALSE;
55 static gint opt_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */
56 static gboolean opt_scan_devs = FALSE;
57 static gboolean opt_wait_trigger = FALSE;
58 static gchar *opt_input_file = NULL;
59 static gchar *opt_output_file = NULL;
60 static gchar *opt_drv = NULL;
61 static gchar *opt_config = NULL;
62 static gchar *opt_probes = NULL;
63 static gchar *opt_probe_group = NULL;
64 static gchar *opt_triggers = NULL;
65 static gchar *opt_pds = NULL;
66 #ifdef HAVE_SRD
67 static gchar *opt_pd_stack = NULL;
68 static gchar *opt_pd_annotations = NULL;
69 #endif
70 static gchar *opt_input_format = NULL;
71 static gchar *opt_output_format = NULL;
72 static gchar *opt_show = NULL;
73 static gchar *opt_time = NULL;
74 static gchar *opt_samples = NULL;
75 static gchar *opt_frames = NULL;
76 static gchar *opt_continuous = NULL;
77 static gchar *opt_set = NULL;
78
79 static GOptionEntry optargs[] = {
80         {"version", 'V', 0, G_OPTION_ARG_NONE, &opt_version,
81                         "Show version and support list", NULL},
82         {"loglevel", 'l', 0, G_OPTION_ARG_INT, &opt_loglevel,
83                         "Set loglevel (5 is most verbose)", NULL},
84         {"driver", 'd', 0, G_OPTION_ARG_STRING, &opt_drv,
85                         "The driver to use", NULL},
86         {"config", 'c', 0, G_OPTION_ARG_STRING, &opt_config,
87                         "Specify device configuration options", NULL},
88         {"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file,
89                         "Load input from file", NULL},
90         {"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format,
91                         "Input format", NULL},
92         {"output-file", 'o', 0, G_OPTION_ARG_FILENAME, &opt_output_file,
93                         "Save output to file", NULL},
94         {"output-format", 'O', 0, G_OPTION_ARG_STRING, &opt_output_format,
95                         "Output format", NULL},
96         {"probes", 'p', 0, G_OPTION_ARG_STRING, &opt_probes,
97                         "Probes to use", NULL},
98         {"probe-group", 'g', 0, G_OPTION_ARG_STRING, &opt_probe_group,
99                         "Probe groups", NULL},
100         {"triggers", 't', 0, G_OPTION_ARG_STRING, &opt_triggers,
101                         "Trigger configuration", NULL},
102         {"wait-trigger", 'w', 0, G_OPTION_ARG_NONE, &opt_wait_trigger,
103                         "Wait for trigger", NULL},
104 #ifdef HAVE_SRD
105         {"protocol-decoders", 'P', 0, G_OPTION_ARG_STRING, &opt_pds,
106                         "Protocol decoders to run", NULL},
107         {"protocol-decoder-stack", 'S', 0, G_OPTION_ARG_STRING, &opt_pd_stack,
108                         "Protocol decoder stack", NULL},
109         {"protocol-decoder-annotations", 'A', 0, G_OPTION_ARG_STRING, &opt_pd_annotations,
110                         "Protocol decoder annotation(s) to show", NULL},
111 #endif
112         {"scan", 0, 0, G_OPTION_ARG_NONE, &opt_scan_devs,
113                         "Scan for devices", NULL},
114         {"show", 0, 0, G_OPTION_ARG_NONE, &opt_show,
115                         "Show device detail", NULL},
116         {"time", 0, 0, G_OPTION_ARG_STRING, &opt_time,
117                         "How long to sample (ms)", NULL},
118         {"samples", 0, 0, G_OPTION_ARG_STRING, &opt_samples,
119                         "Number of samples to acquire", NULL},
120         {"frames", 0, 0, G_OPTION_ARG_STRING, &opt_frames,
121                         "Number of frames to acquire", NULL},
122         {"continuous", 0, 0, G_OPTION_ARG_NONE, &opt_continuous,
123                         "Sample continuously", NULL},
124         {"set", 0, 0, G_OPTION_ARG_NONE, &opt_set, "Set device options only", NULL},
125         {NULL, 0, 0, 0, NULL, NULL, NULL}
126 };
127
128
129 /* Convert driver options hash to GSList of struct sr_config. */
130 static GSList *hash_to_hwopt(GHashTable *hash)
131 {
132         const struct sr_config_info *srci;
133         struct sr_config *src;
134         GList *gl, *keys;
135         GSList *opts;
136         char *key, *value;
137
138         keys = g_hash_table_get_keys(hash);
139         opts = NULL;
140         for (gl = keys; gl; gl = gl->next) {
141                 key = gl->data;
142                 if (!(srci = sr_config_info_name_get(key))) {
143                         g_critical("Unknown option %s", key);
144                         return NULL;
145                 }
146                 src = g_try_malloc(sizeof(struct sr_config));
147                 src->key = srci->key;
148                 value = g_hash_table_lookup(hash, key);
149                 src->data = g_variant_new_string(value);
150                 opts = g_slist_append(opts, src);
151         }
152         g_list_free(keys);
153
154         return opts;
155 }
156
157 static struct sr_probe_group *select_probe_group(struct sr_dev_inst *sdi)
158 {
159         struct sr_probe_group *pg;
160         GSList *l;
161
162         if (!opt_probe_group)
163                 return NULL;
164
165         if (!sdi->probe_groups) {
166                 g_critical("This device does not have any probe groups.");
167                 return NULL;
168         }
169
170         for (l = sdi->probe_groups; l; l = l->next) {
171                 pg = l->data;
172                 if (!strcasecmp(opt_probe_group, pg->name)) {
173                         return pg;
174                 }
175         }
176
177         return NULL;
178 }
179
180 static void free_drvopts(struct sr_config *src)
181 {
182         g_variant_unref(src->data);
183         g_free(src);
184 }
185
186 static GSList *device_scan(void)
187 {
188         struct sr_dev_driver **drivers, *driver;
189         GHashTable *drvargs;
190         GSList *drvopts, *devices, *tmpdevs, *l;
191         int i;
192         char *drvname;
193
194         if (opt_drv) {
195                 drvargs = parse_generic_arg(opt_drv, TRUE);
196                 drvname = g_strdup(g_hash_table_lookup(drvargs, "sigrok_key"));
197                 g_hash_table_remove(drvargs, "sigrok_key");
198                 driver = NULL;
199                 drivers = sr_driver_list();
200                 for (i = 0; drivers[i]; i++) {
201                         if (strcmp(drivers[i]->name, drvname))
202                                 continue;
203                         driver = drivers[i];
204                 }
205                 if (!driver) {
206                         g_critical("Driver %s not found.", drvname);
207                         g_hash_table_destroy(drvargs);
208                         g_free(drvname);
209                         return NULL;
210                 }
211                 g_free(drvname);
212                 if (sr_driver_init(sr_ctx, driver) != SR_OK) {
213                         g_critical("Failed to initialize driver.");
214                         g_hash_table_destroy(drvargs);
215                         return NULL;
216                 }
217                 drvopts = NULL;
218                 if (g_hash_table_size(drvargs) > 0) {
219                         if (!(drvopts = hash_to_hwopt(drvargs))) {
220                                 /* Unknown options, already logged. */
221                                 g_hash_table_destroy(drvargs);
222                                 return NULL;
223                         }
224                 }
225                 g_hash_table_destroy(drvargs);
226                 devices = sr_driver_scan(driver, drvopts);
227                 g_slist_free_full(drvopts, (GDestroyNotify)free_drvopts);
228         } else {
229                 /* No driver specified, let them all scan on their own. */
230                 devices = NULL;
231                 drivers = sr_driver_list();
232                 for (i = 0; drivers[i]; i++) {
233                         driver = drivers[i];
234                         if (sr_driver_init(sr_ctx, driver) != SR_OK) {
235                                 g_critical("Failed to initialize driver.");
236                                 return NULL;
237                         }
238                         tmpdevs = sr_driver_scan(driver, NULL);
239                         for (l = tmpdevs; l; l = l->next)
240                                 devices = g_slist_append(devices, l->data);
241                         g_slist_free(tmpdevs);
242                 }
243         }
244
245         return devices;
246 }
247
248 static void show_version(void)
249 {
250         struct sr_dev_driver **drivers;
251         struct sr_input_format **inputs;
252         struct sr_output_format **outputs;
253         int i;
254 #ifdef HAVE_SRD
255         struct srd_decoder *dec;
256         const GSList *l;
257 #endif
258
259         printf("sigrok-cli %s\n\n", VERSION);
260
261         printf("Using libsigrok %s (lib version %s).\n",
262                sr_package_version_string_get(), sr_lib_version_string_get());
263 #ifdef HAVE_SRD
264         printf("Using libsigrokdecode %s (lib version %s).\n\n",
265                srd_package_version_string_get(), srd_lib_version_string_get());
266 #endif
267
268         printf("Supported hardware drivers:\n");
269         drivers = sr_driver_list();
270         for (i = 0; drivers[i]; i++) {
271                 printf("  %-20s %s\n", drivers[i]->name, drivers[i]->longname);
272         }
273         printf("\n");
274
275         printf("Supported input formats:\n");
276         inputs = sr_input_list();
277         for (i = 0; inputs[i]; i++)
278                 printf("  %-20s %s\n", inputs[i]->id, inputs[i]->description);
279         printf("\n");
280
281         printf("Supported output formats:\n");
282         outputs = sr_output_list();
283         for (i = 0; outputs[i]; i++)
284                 printf("  %-20s %s\n", outputs[i]->id, outputs[i]->description);
285         printf("  %-20s %s\n", "sigrok", "Default file output format");
286         printf("\n");
287
288 #ifdef HAVE_SRD
289         if (srd_init(NULL) == SRD_OK) {
290                 printf("Supported protocol decoders:\n");
291                 srd_decoder_load_all();
292                 for (l = srd_decoder_list(); l; l = l->next) {
293                         dec = l->data;
294                         printf("  %-20s %s\n", dec->id, dec->longname);
295                         /* Print protocol description upon "-l 3" or higher. */
296                         if (opt_loglevel >= SR_LOG_INFO)
297                                 printf("  %-20s %s\n", "", dec->desc);
298                 }
299                 srd_exit();
300         }
301         printf("\n");
302 #endif
303 }
304
305 static void print_dev_line(const struct sr_dev_inst *sdi)
306 {
307         struct sr_probe *probe;
308         GSList *l;
309         GString *s;
310         GVariant *gvar;
311
312         s = g_string_sized_new(128);
313         g_string_assign(s, sdi->driver->name);
314         if (sr_config_get(sdi->driver, sdi, NULL, SR_CONF_CONN, &gvar) == SR_OK) {
315                 g_string_append(s, ":conn=");
316                 g_string_append(s, g_variant_get_string(gvar, NULL));
317                 g_variant_unref(gvar);
318         }
319         g_string_append(s, " - ");
320         if (sdi->vendor && sdi->vendor[0])
321                 g_string_append_printf(s, "%s ", sdi->vendor);
322         if (sdi->model && sdi->model[0])
323                 g_string_append_printf(s, "%s ", sdi->model);
324         if (sdi->version && sdi->version[0])
325                 g_string_append_printf(s, "%s ", sdi->version);
326         if (sdi->probes) {
327                 if (g_slist_length(sdi->probes) == 1) {
328                         probe = sdi->probes->data;
329                         g_string_append_printf(s, "with 1 probe: %s", probe->name);
330                 } else {
331                         g_string_append_printf(s, "with %d probes:", g_slist_length(sdi->probes));
332                         for (l = sdi->probes; l; l = l->next) {
333                                 probe = l->data;
334                                 g_string_append_printf(s, " %s", probe->name);
335                         }
336                 }
337         }
338         g_string_append_printf(s, "\n");
339         printf("%s", s->str);
340         g_string_free(s, TRUE);
341
342 }
343
344 static void show_dev_list(void)
345 {
346         struct sr_dev_inst *sdi;
347         GSList *devices, *l;
348
349         if (!(devices = device_scan()))
350                 return;
351
352         printf("The following devices were found:\n");
353         for (l = devices; l; l = l->next) {
354                 sdi = l->data;
355                 print_dev_line(sdi);
356         }
357         g_slist_free(devices);
358
359 }
360
361 static void show_dev_detail(void)
362 {
363         struct sr_dev_inst *sdi;
364         const struct sr_config_info *srci;
365         struct sr_probe *probe;
366         struct sr_probe_group *probe_group, *pg;
367         GSList *devices, *pgl, *prl;
368         GVariant *gvar_opts, *gvar_dict, *gvar_list, *gvar;
369         gsize num_opts, num_elements;
370         const uint64_t *uint64, p, q, low, high;
371         uint64_t cur_low, cur_high;
372         const int32_t *opts;
373         unsigned int num_devices, o, i;
374         char *tmp_str;
375         char *s;
376         const char *charopts, **stropts;
377
378         if (!(devices = device_scan())) {
379                 g_critical("No devices found.");
380                 return;
381         }
382
383         num_devices = g_slist_length(devices);
384         if (num_devices > 1) {
385                 g_critical("%d devices found. Use --scan to show them, "
386                                 "and select one to show.", num_devices);
387                 return;
388         }
389
390         sdi = devices->data;
391         print_dev_line(sdi);
392
393         if (sr_dev_open(sdi) != SR_OK) {
394                 g_critical("Failed to open device.");
395                 return;
396         }
397
398         if ((sr_config_list(sdi->driver, NULL, NULL, SR_CONF_SCAN_OPTIONS,
399                         &gvar_opts) == SR_OK)) {
400                 opts = g_variant_get_fixed_array(gvar_opts, &num_elements,
401                                 sizeof(int32_t));
402                 printf("Supported driver options:\n");
403                 for (i = 0; i < num_elements; i++) {
404                         if (!(srci = sr_config_info_get(opts[i])))
405                                 continue;
406                         printf("    %s\n", srci->id);
407                 }
408                 g_variant_unref(gvar_opts);
409         }
410
411         probe_group = select_probe_group(sdi);
412         if ((sr_config_list(sdi->driver, sdi, probe_group, SR_CONF_DEVICE_OPTIONS,
413                         &gvar_opts)) != SR_OK)
414                 /* Driver supports no device instance options. */
415                 return;
416
417         if (sdi->probe_groups) {
418                 printf("Probe groups:\n");
419                 for (pgl = sdi->probe_groups; pgl; pgl = pgl->next) {
420                         pg = pgl->data;
421                         printf("    %s: channel%s", pg->name,
422                                         g_slist_length(pg->probes) > 1 ? "s" : "");
423                         for (prl = pg->probes; prl; prl = prl->next) {
424                                 probe = prl->data;
425                                 printf(" %s", probe->name);
426                         }
427                         printf("\n");
428                 }
429         }
430
431         printf("Supported configuration options");
432         if (sdi->probe_groups) {
433                 if (!probe_group)
434                         printf(" across all probe groups");
435                 else
436                         printf(" on probe group %s", probe_group->name);
437         }
438         printf(":\n");
439         opts = g_variant_get_fixed_array(gvar_opts, &num_opts, sizeof(int32_t));
440         for (o = 0; o < num_opts; o++) {
441                 if (!(srci = sr_config_info_get(opts[o])))
442                         continue;
443
444                 if (srci->key == SR_CONF_TRIGGER_TYPE) {
445                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
446                                         &gvar) != SR_OK) {
447                                 printf("\n");
448                                 continue;
449                         }
450                         charopts = g_variant_get_string(gvar, NULL);
451                         printf("    Supported triggers: ");
452                         while (*charopts) {
453                                 printf("%c ", *charopts);
454                                 charopts++;
455                         }
456                         printf("\n");
457                         g_variant_unref(gvar);
458
459                 } else if (srci->key == SR_CONF_PATTERN_MODE) {
460                         /* Pattern generator modes */
461                         printf("    %s", srci->id);
462                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
463                                         &gvar) == SR_OK) {
464                                 printf(" - supported patterns:\n");
465                                 stropts = g_variant_get_strv(gvar, &num_elements);
466                                 for (i = 0; i < num_elements; i++)
467                                         printf("      %s\n", stropts[i]);
468                                 g_variant_unref(gvar);
469                         } else {
470                                 printf("\n");
471                         }
472
473                 } else if (srci->key == SR_CONF_SAMPLERATE) {
474                         /* Supported samplerates */
475                         printf("    %s", srci->id);
476                         if (sr_config_list(sdi->driver, sdi, probe_group, SR_CONF_SAMPLERATE,
477                                         &gvar_dict) != SR_OK) {
478                                 printf("\n");
479                                 continue;
480                         }
481                         if ((gvar_list = g_variant_lookup_value(gvar_dict,
482                                         "samplerates", G_VARIANT_TYPE("at")))) {
483                                 uint64 = g_variant_get_fixed_array(gvar_list,
484                                                 &num_elements, sizeof(uint64_t));
485                                 printf(" - supported samplerates:\n");
486                                 for (i = 0; i < num_elements; i++) {
487                                         if (!(s = sr_samplerate_string(uint64[i])))
488                                                 continue;
489                                         printf("      %s\n", s);
490                                         g_free(s);
491                                 }
492                                 g_variant_unref(gvar_list);
493                         } else if ((gvar_list = g_variant_lookup_value(gvar_dict,
494                                         "samplerate-steps", G_VARIANT_TYPE("at")))) {
495                                 uint64 = g_variant_get_fixed_array(gvar_list,
496                                                 &num_elements, sizeof(uint64_t));
497                                 /* low */
498                                 if (!(s = sr_samplerate_string(uint64[0])))
499                                         continue;
500                                 printf(" (%s", s);
501                                 g_free(s);
502                                 /* high */
503                                 if (!(s = sr_samplerate_string(uint64[1])))
504                                         continue;
505                                 printf(" - %s", s);
506                                 g_free(s);
507                                 /* step */
508                                 if (!(s = sr_samplerate_string(uint64[2])))
509                                         continue;
510                                 printf(" in steps of %s)\n", s);
511                                 g_free(s);
512                                 g_variant_unref(gvar_list);
513                         }
514                         g_variant_unref(gvar_dict);
515
516                 } else if (srci->key == SR_CONF_BUFFERSIZE) {
517                         /* Supported buffer sizes */
518                         printf("    %s", srci->id);
519                         if (sr_config_list(sdi->driver, sdi, probe_group,
520                                         SR_CONF_BUFFERSIZE, &gvar_list) != SR_OK) {
521                                 printf("\n");
522                                 continue;
523                         }
524                         uint64 = g_variant_get_fixed_array(gvar_list,
525                                         &num_elements, sizeof(uint64_t));
526                         printf(" - supported buffer sizes:\n");
527                         for (i = 0; i < num_elements; i++)
528                                 printf("      %"PRIu64"\n", uint64[i]);
529                         g_variant_unref(gvar_list);
530
531                 } else if (srci->key == SR_CONF_TIMEBASE) {
532                         /* Supported time bases */
533                         printf("    %s", srci->id);
534                         if (sr_config_list(sdi->driver, sdi, probe_group,
535                                         SR_CONF_TIMEBASE, &gvar_list) != SR_OK) {
536                                 printf("\n");
537                                 continue;
538                         }
539                         printf(" - supported time bases:\n");
540                         num_elements = g_variant_n_children(gvar_list);
541                         for (i = 0; i < num_elements; i++) {
542                                 gvar = g_variant_get_child_value(gvar_list, i);
543                                 g_variant_get(gvar, "(tt)", &p, &q);
544                                 s = sr_period_string(p * q);
545                                 printf("      %s\n", s);
546                                 g_free(s);
547                         }
548                         g_variant_unref(gvar_list);
549
550                 } else if (srci->key == SR_CONF_VDIV) {
551                         /* Supported volts/div values */
552                         printf("    %s", srci->id);
553                         if (sr_config_list(sdi->driver, sdi, probe_group,
554                                         SR_CONF_VDIV, &gvar_list) != SR_OK) {
555                                 printf("\n");
556                                 continue;
557                         }
558                         printf(" - supported volts/div:\n");
559                         num_elements = g_variant_n_children(gvar_list);
560                         for (i = 0; i < num_elements; i++) {
561                                 gvar = g_variant_get_child_value(gvar_list, i);
562                                 g_variant_get(gvar, "(tt)", &p, &q);
563                                 s = sr_voltage_string(p, q);
564                                 printf("      %s\n", s);
565                                 g_free(s);
566                         }
567                         g_variant_unref(gvar_list);
568
569                 } else if (srci->datatype == SR_T_CHAR) {
570                         printf("    %s: ", srci->id);
571                         if (sr_config_get(sdi->driver, sdi, probe_group, srci->key,
572                                         &gvar) == SR_OK) {
573                                 tmp_str = g_strdup(g_variant_get_string(gvar, NULL));
574                                 g_variant_unref(gvar);
575                         } else
576                                 tmp_str = NULL;
577
578                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
579                                         &gvar) != SR_OK) {
580                                 printf("\n");
581                                 continue;
582                         }
583
584                         stropts = g_variant_get_strv(gvar, &num_elements);
585                         for (i = 0; i < num_elements; i++) {
586                                 if (i)
587                                         printf(", ");
588                                 printf("%s", stropts[i]);
589                                 if (tmp_str && !strcmp(tmp_str, stropts[i]))
590                                         printf(" (current)");
591                         }
592                         printf("\n");
593                         g_free(stropts);
594                         g_free(tmp_str);
595                         g_variant_unref(gvar);
596
597                 } else if (srci->datatype == SR_T_UINT64_RANGE) {
598                         printf("    %s: ", srci->id);
599                         if (sr_config_list(sdi->driver, sdi, probe_group, srci->key,
600                                         &gvar_list) != SR_OK) {
601                                 printf("\n");
602                                 continue;
603                         }
604
605                         if (sr_config_get(sdi->driver, sdi, NULL, srci->key, &gvar) == SR_OK) {
606                                 g_variant_get(gvar, "(tt)", &cur_low, &cur_high);
607                                 g_variant_unref(gvar);
608                         } else {
609                                 cur_low = 0;
610                                 cur_high = 0;
611                         }
612
613                         num_elements = g_variant_n_children(gvar_list);
614                         for (i = 0; i < num_elements; i++) {
615                                 gvar = g_variant_get_child_value(gvar_list, i);
616                                 g_variant_get(gvar, "(tt)", &low, &high);
617                                 g_variant_unref(gvar);
618                                 if (i)
619                                         printf(", ");
620                                 printf("%"PRIu64"-%"PRIu64, low, high);
621                                 if (low == cur_low && high == cur_high)
622                                         printf(" (current)");
623                         }
624                         printf("\n");
625                         g_variant_unref(gvar_list);
626
627                 } else if (srci->datatype == SR_T_BOOL) {
628                         printf("    %s: ", srci->id);
629                         if (sr_config_get(sdi->driver, sdi, NULL, srci->key,
630                                         &gvar) == SR_OK) {
631                                 if (g_variant_get_boolean(gvar))
632                                         printf("on (current), off\n");
633                                 else
634                                         printf("on, off (current)\n");
635                                 g_variant_unref(gvar);
636                         } else
637                                 printf("on, off\n");
638
639                 } else {
640
641                         /* Everything else */
642                         printf("    %s\n", srci->id);
643                 }
644         }
645         g_variant_unref(gvar_opts);
646
647         sr_dev_close(sdi);
648         g_slist_free(devices);
649
650 }
651
652 #ifdef HAVE_SRD
653 static void show_pd_detail(void)
654 {
655         GSList *l;
656         struct srd_decoder *dec;
657         struct srd_decoder_option *o;
658         char **pdtokens, **pdtok, *optsep, **ann, *val, *doc;
659         struct srd_probe *p;
660
661         pdtokens = g_strsplit(opt_pds, ",", -1);
662         for (pdtok = pdtokens; *pdtok; pdtok++) {
663                 /* Strip options. */
664                 if ((optsep = strchr(*pdtok, ':')))
665                         *optsep = '\0';
666                 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
667                         g_critical("Protocol decoder %s not found.", *pdtok);
668                         return;
669                 }
670                 printf("ID: %s\nName: %s\nLong name: %s\nDescription: %s\n",
671                                 dec->id, dec->name, dec->longname, dec->desc);
672                 printf("License: %s\n", dec->license);
673                 printf("Annotations:\n");
674                 if (dec->annotations) {
675                         for (l = dec->annotations; l; l = l->next) {
676                                 ann = l->data;
677                                 printf("- %s\n  %s\n", ann[0], ann[1]);
678                         }
679                 } else {
680                         printf("None.\n");
681                 }
682                 printf("Required probes:\n");
683                 if (dec->probes) {
684                         for (l = dec->probes; l; l = l->next) {
685                                 p = l->data;
686                                 printf("- %s (%s): %s\n",
687                                        p->name, p->id, p->desc);
688                         }
689                 } else {
690                         printf("None.\n");
691                 }
692                 printf("Optional probes:\n");
693                 if (dec->opt_probes) {
694                         for (l = dec->opt_probes; l; l = l->next) {
695                                 p = l->data;
696                                 printf("- %s (%s): %s\n",
697                                        p->name, p->id, p->desc);
698                         }
699                 } else {
700                         printf("None.\n");
701                 }
702                 if (dec->options) {
703                         printf("Options:\n");
704                         for (l = dec->options; l; l = l->next) {
705                                 o = l->data;
706                                 val = g_variant_print(o->def, FALSE);
707                                 printf("- %s: %s (default %s)\n", o->id, o->desc, val);
708                                 g_free(val);
709                         }
710                 }
711                 if ((doc = srd_decoder_doc_get(dec))) {
712                         printf("Documentation:\n%s\n",
713                                doc[0] == '\n' ? doc + 1 : doc);
714                         g_free(doc);
715                 }
716         }
717
718         g_strfreev(pdtokens);
719 }
720 #endif
721
722 static GArray *get_enabled_logic_probes(const struct sr_dev_inst *sdi)
723 {
724         struct sr_probe *probe;
725         GArray *probes;
726         GSList *l;
727
728         probes = g_array_new(FALSE, FALSE, sizeof(int));
729         for (l = sdi->probes; l; l = l->next) {
730                 probe = l->data;
731                 if (probe->type != SR_PROBE_LOGIC)
732                         continue;
733                 if (probe->enabled != TRUE)
734                         continue;
735                 g_array_append_val(probes, probe->index);
736         }
737
738         return probes;
739 }
740
741 static void datafeed_in(const struct sr_dev_inst *sdi,
742                 const struct sr_datafeed_packet *packet, void *cb_data)
743 {
744         const struct sr_datafeed_meta *meta;
745         const struct sr_datafeed_logic *logic;
746         const struct sr_datafeed_analog *analog;
747         struct sr_config *src;
748         static struct sr_output *o = NULL;
749         static GArray *logic_probelist = NULL;
750         static uint64_t received_samples = 0;
751         static int unitsize = 0;
752         static int triggered = 0;
753         static FILE *outfile = NULL;
754         GSList *l;
755         GString *out;
756         int sample_size, ret;
757         uint64_t samplerate, output_len, filter_out_len, end_sample;
758         uint8_t *output_buf, *filter_out;
759
760         (void) cb_data;
761
762         /* If the first packet to come in isn't a header, don't even try. */
763         if (packet->type != SR_DF_HEADER && o == NULL)
764                 return;
765
766         sample_size = -1;
767         switch (packet->type) {
768         case SR_DF_HEADER:
769                 g_debug("cli: Received SR_DF_HEADER");
770                 /* Initialize the output module. */
771                 if (!(o = g_try_malloc(sizeof(struct sr_output)))) {
772                         g_critical("Output module malloc failed.");
773                         exit(1);
774                 }
775                 o->format = output_format;
776                 o->sdi = (struct sr_dev_inst *)sdi;
777                 o->param = output_format_param;
778                 if (o->format->init) {
779                         if (o->format->init(o) != SR_OK) {
780                                 g_critical("Output format initialization failed.");
781                                 exit(1);
782                         }
783                 }
784
785                 /* Prepare non-stdout output. */
786                 outfile = stdout;
787                 if (opt_output_file) {
788                         if (default_output_format) {
789                                 /* output file is in session format, so we'll
790                                  * keep a copy of everything as it comes in
791                                  * and save from there after the session. */
792                                 outfile = NULL;
793                                 savebuf = g_byte_array_new();
794                         } else {
795                                 /* saving to a file in whatever format was set
796                                  * with --format, so all we need is a filehandle */
797                                 outfile = g_fopen(opt_output_file, "wb");
798                         }
799                 }
800
801                 /* Prepare for logic data. */
802                 logic_probelist = get_enabled_logic_probes(sdi);
803                 /* How many bytes we need to store the packed samples. */
804                 unitsize = (logic_probelist->len + 7) / 8;
805
806 #ifdef HAVE_SRD
807                 GVariant *gvar;
808                 if (opt_pds && logic_probelist->len) {
809                         if (sr_config_get(sdi->driver, sdi, NULL, SR_CONF_SAMPLERATE,
810                                         &gvar) == SR_OK) {
811                                 samplerate = g_variant_get_uint64(gvar);
812                                 g_variant_unref(gvar);
813                                 if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
814                                                 g_variant_new_uint64(samplerate)) != SRD_OK) {
815                                         g_critical("Failed to configure decode session.");
816                                         break;
817                                 }
818                         }
819                         if (srd_session_start(srd_sess) != SRD_OK) {
820                                 g_critical("Failed to start decode session.");
821                                 break;
822                         }
823                 }
824 #endif
825                 break;
826
827         case SR_DF_META:
828                 g_debug("cli: received SR_DF_META");
829                 meta = packet->payload;
830                 for (l = meta->config; l; l = l->next) {
831                         src = l->data;
832                         switch (src->key) {
833                         case SR_CONF_SAMPLERATE:
834                                 samplerate = g_variant_get_uint64(src->data);
835                                 g_debug("cli: got samplerate %"PRIu64" Hz", samplerate);
836 #ifdef HAVE_SRD
837                                 if (opt_pds) {
838                                         if (srd_session_metadata_set(srd_sess, SRD_CONF_SAMPLERATE,
839                                                         g_variant_new_uint64(samplerate)) != SRD_OK) {
840                                                 g_critical("Failed to pass samplerate to decoder.");
841                                         }
842                                 }
843 #endif
844                                 break;
845                         case SR_CONF_SAMPLE_INTERVAL:
846                                 samplerate = g_variant_get_uint64(src->data);
847                                 g_debug("cli: got sample interval %"PRIu64" ms", samplerate);
848                                 break;
849                         default:
850                                 /* Unknown metadata is not an error. */
851                                 break;
852                         }
853                 }
854                 break;
855
856         case SR_DF_TRIGGER:
857                 g_debug("cli: received SR_DF_TRIGGER");
858                 if (o->format->event)
859                         o->format->event(o, SR_DF_TRIGGER, &output_buf,
860                                          &output_len);
861                 triggered = 1;
862                 break;
863
864         case SR_DF_LOGIC:
865                 logic = packet->payload;
866                 g_message("cli: received SR_DF_LOGIC, %"PRIu64" bytes", logic->length);
867                 sample_size = logic->unitsize;
868                 if (logic->length == 0)
869                         break;
870
871                 /* Don't store any samples until triggered. */
872                 if (opt_wait_trigger && !triggered)
873                         break;
874
875                 if (limit_samples && received_samples >= limit_samples)
876                         break;
877
878                 ret = sr_filter_probes(sample_size, unitsize, logic_probelist,
879                                 logic->data, logic->length,
880                                 &filter_out, &filter_out_len);
881                 if (ret != SR_OK)
882                         break;
883
884                 /*
885                  * What comes out of the filter is guaranteed to be packed into the
886                  * minimum size needed to support the number of samples at this sample
887                  * size. however, the driver may have submitted too much. Cut off
888                  * the buffer of the last packet according to the sample limit.
889                  */
890                 if (limit_samples && (received_samples + logic->length / sample_size >
891                                 limit_samples * sample_size))
892                         filter_out_len = limit_samples * sample_size - received_samples;
893
894                 if (opt_output_file && default_output_format) {
895                         /* Saving to a session file. */
896                         g_byte_array_append(savebuf, filter_out, filter_out_len);
897                 } else {
898                         if (opt_pds) {
899 #ifdef HAVE_SRD
900                                 end_sample = received_samples + filter_out_len / unitsize;
901                                 if (srd_session_send(srd_sess, received_samples, end_sample,
902                                                 (uint8_t*)filter_out, filter_out_len) != SRD_OK)
903                                         sr_session_stop();
904 #endif
905                         } else {
906                                 output_len = 0;
907                                 if (o->format->data && packet->type == o->format->df_type)
908                                         o->format->data(o, filter_out, filter_out_len,
909                                                         &output_buf, &output_len);
910                                 if (output_len) {
911                                         fwrite(output_buf, 1, output_len, outfile);
912                                         fflush(outfile);
913                                         g_free(output_buf);
914                                 }
915                         }
916                 }
917                 g_free(filter_out);
918
919                 received_samples += logic->length / sample_size;
920                 break;
921
922         case SR_DF_ANALOG:
923                 analog = packet->payload;
924                 g_message("cli: received SR_DF_ANALOG, %d samples", analog->num_samples);
925                 if (analog->num_samples == 0)
926                         break;
927
928                 if (limit_samples && received_samples >= limit_samples)
929                         break;
930
931                 if (o->format->data && packet->type == o->format->df_type) {
932                         o->format->data(o, (const uint8_t *)analog->data,
933                                         analog->num_samples * sizeof(float),
934                                         &output_buf, &output_len);
935                         if (output_buf) {
936                                 fwrite(output_buf, 1, output_len, outfile);
937                                 fflush(outfile);
938                                 g_free(output_buf);
939                         }
940                 }
941
942                 received_samples += analog->num_samples;
943                 break;
944
945         case SR_DF_FRAME_BEGIN:
946                 g_debug("cli: received SR_DF_FRAME_BEGIN");
947                 if (o->format->event) {
948                         o->format->event(o, SR_DF_FRAME_BEGIN, &output_buf,
949                                          &output_len);
950                         if (output_buf) {
951                                 fwrite(output_buf, 1, output_len, outfile);
952                                 fflush(outfile);
953                                 g_free(output_buf);
954                         }
955                 }
956                 break;
957
958         case SR_DF_FRAME_END:
959                 g_debug("cli: received SR_DF_FRAME_END");
960                 if (o->format->event) {
961                         o->format->event(o, SR_DF_FRAME_END, &output_buf,
962                                          &output_len);
963                         if (output_buf) {
964                                 fwrite(output_buf, 1, output_len, outfile);
965                                 fflush(outfile);
966                                 g_free(output_buf);
967                         }
968                 }
969                 break;
970
971         default:
972                 break;
973         }
974
975         if (o && o->format->receive) {
976                 if (o->format->receive(o, sdi, packet, &out) == SR_OK && out) {
977                         fwrite(out->str, 1, out->len, outfile);
978                         fflush(outfile);
979                         g_string_free(out, TRUE);
980                 }
981         }
982
983         /* SR_DF_END needs to be handled after the output module's receive()
984          * is called, so it can properly clean up that module etc. */
985         if (packet->type == SR_DF_END) {
986                 g_debug("cli: Received SR_DF_END");
987
988                 if (o->format->event) {
989                         o->format->event(o, SR_DF_END, &output_buf, &output_len);
990                         if (output_buf) {
991                                 if (outfile)
992                                         fwrite(output_buf, 1, output_len, outfile);
993                                 g_free(output_buf);
994                                 output_len = 0;
995                         }
996                 }
997
998                 if (limit_samples && received_samples < limit_samples)
999                         g_warning("Device only sent %" PRIu64 " samples.",
1000                                received_samples);
1001
1002                 if (opt_continuous)
1003                         g_warning("Device stopped after %" PRIu64 " samples.",
1004                                received_samples);
1005
1006                 g_array_free(logic_probelist, TRUE);
1007
1008                 if (o->format->cleanup)
1009                         o->format->cleanup(o);
1010                 g_free(o);
1011                 o = NULL;
1012
1013                 if (outfile && outfile != stdout)
1014                         fclose(outfile);
1015
1016                 if (opt_output_file && default_output_format && savebuf->len) {
1017                         if (sr_session_save(opt_output_file, sdi, savebuf->data,
1018                                         unitsize, savebuf->len / unitsize) != SR_OK)
1019                                 g_critical("Failed to save session.");
1020                         g_byte_array_free(savebuf, FALSE);
1021                 }
1022         }
1023
1024 }
1025
1026 #ifdef HAVE_SRD
1027 static int opts_to_gvar(struct srd_decoder *dec, GHashTable *hash,
1028                 GHashTable **options)
1029 {
1030         struct srd_decoder_option *o;
1031         GSList *optl;
1032         GVariant *gvar;
1033         gint64 val_int;
1034         int ret;
1035         char *val_str, *conv;
1036
1037         ret = TRUE;
1038         *options = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
1039                         (GDestroyNotify)g_variant_unref);
1040
1041         for (optl = dec->options; optl; optl = optl->next) {
1042                 o = optl->data;
1043                 if (!(val_str = g_hash_table_lookup(hash, o->id)))
1044                         /* Not specified. */
1045                         continue;
1046                 if (g_variant_is_of_type(o->def, G_VARIANT_TYPE_STRING)) {
1047                         gvar = g_variant_new_string(val_str);
1048                 } else if (g_variant_is_of_type(o->def, G_VARIANT_TYPE_INT64)) {
1049                         val_int = strtoll(val_str, &conv, 0);
1050                         if (!conv || conv == val_str) {
1051                                 g_critical("Protocol decoder '%s' option '%s' "
1052                                                 "requires a number.", dec->name, o->id);
1053                                 ret = FALSE;
1054                                 break;
1055                         }
1056                         gvar = g_variant_new_int64(val_int);
1057                 } else {
1058                         g_critical("Unsupported type for option '%s' (%s)",
1059                                         o->id, g_variant_get_type_string(o->def));
1060                         ret = FALSE;
1061                         break;
1062                 }
1063                 g_variant_ref_sink(gvar);
1064                 g_hash_table_insert(*options, g_strdup(o->id), gvar);
1065                 g_hash_table_remove(hash, o->id);
1066         }
1067
1068         return ret;
1069 }
1070
1071 static int probes_to_gvar(struct srd_decoder *dec, GHashTable *hash,
1072                 GHashTable **probes)
1073 {
1074         struct srd_probe *p;
1075         GSList *all_probes, *l;
1076         GVariant *gvar;
1077         gint32 val_int;
1078         int ret;
1079         char *val_str, *conv;
1080
1081         ret = TRUE;
1082         *probes = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
1083                         (GDestroyNotify)g_variant_unref);
1084
1085         all_probes = g_slist_copy(dec->probes);
1086         all_probes = g_slist_concat(all_probes, g_slist_copy(dec->opt_probes));
1087         for (l = all_probes; l; l = l->next) {
1088                 p = l->data;
1089                 if (!(val_str = g_hash_table_lookup(hash, p->id)))
1090                         /* Not specified. */
1091                         continue;
1092                 val_int = strtoll(val_str, &conv, 10);
1093                 if (!conv || conv == val_str) {
1094                         g_critical("Protocol decoder '%s' probes '%s' "
1095                                         "is not a number.", dec->name, p->id);
1096                         ret = FALSE;
1097                         break;
1098                 }
1099                 gvar = g_variant_new_int32(val_int);
1100                 g_variant_ref_sink(gvar);
1101                 g_hash_table_insert(*probes, g_strdup(p->id), gvar);
1102                 g_hash_table_remove(hash, p->id);
1103         }
1104         g_slist_free(all_probes);
1105
1106         return ret;
1107 }
1108
1109 /* Register the given PDs for this session.
1110  * Accepts a string of the form: "spi:sck=3:sdata=4,spi:sck=3:sdata=5"
1111  * That will instantiate two SPI decoders on the clock but different data
1112  * lines.
1113  */
1114 static int register_pds(struct sr_dev *dev, const char *pdstring)
1115 {
1116         struct srd_decoder *dec;
1117         GHashTable *pd_opthash, *options, *probes;
1118         GList *leftover, *l;
1119         struct srd_decoder_inst *di;
1120         int ret;
1121         char **pdtokens, **pdtok, *pd_name;
1122
1123         (void)dev;
1124
1125         ret = 0;
1126         pd_ann_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
1127                         g_free, NULL);
1128         pd_name = NULL;
1129         pd_opthash = options = probes = NULL;
1130         pdtokens = g_strsplit(pdstring, ",", 0);
1131         for (pdtok = pdtokens; *pdtok; pdtok++) {
1132                 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
1133                         g_critical("Invalid protocol decoder option '%s'.", *pdtok);
1134                         break;
1135                 }
1136
1137                 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
1138                 g_hash_table_remove(pd_opthash, "sigrok_key");
1139                 if (srd_decoder_load(pd_name) != SRD_OK) {
1140                         g_critical("Failed to load protocol decoder %s.", pd_name);
1141                         ret = 1;
1142                         break;
1143                 }
1144                 dec = srd_decoder_get_by_id(pd_name);
1145
1146                 /* Convert decoder option and probe values to GVariant. */
1147                 if (!opts_to_gvar(dec, pd_opthash, &options)) {
1148                         ret = 1;
1149                         break;
1150                 }
1151                 if (!probes_to_gvar(dec, pd_opthash, &probes)) {
1152                         ret = 1;
1153                         break;
1154                 }
1155                 if (g_hash_table_size(pd_opthash) > 0) {
1156                         leftover = g_hash_table_get_keys(pd_opthash);
1157                         for (l = leftover; l; l = l->next)
1158                                 g_critical("Unknown option or probe '%s'", (char *)l->data);
1159                         g_list_free(leftover);
1160                         break;
1161                 }
1162
1163                 if (!(di = srd_inst_new(srd_sess, pd_name, options))) {
1164                         g_critical("Failed to instantiate protocol decoder %s.", pd_name);
1165                         ret = 1;
1166                         break;
1167                 }
1168
1169                 /* If no annotation list was specified, add them all in now.
1170                  * This will be pared down later to leave only the last PD
1171                  * in the stack.
1172                  */
1173                 if (!opt_pd_annotations)
1174                         g_hash_table_insert(pd_ann_visible,
1175                                             g_strdup(di->inst_id), NULL);
1176
1177                 /* Remap the probes if needed. */
1178                 if (srd_inst_probe_set_all(di, probes) != SRD_OK) {
1179                         ret = 1;
1180                         break;
1181                 }
1182         }
1183
1184         g_strfreev(pdtokens);
1185         if (pd_opthash)
1186                 g_hash_table_destroy(pd_opthash);
1187         if (options)
1188                 g_hash_table_destroy(options);
1189         if (probes)
1190                 g_hash_table_destroy(probes);
1191         if (pd_name)
1192                 g_free(pd_name);
1193
1194         return ret;
1195 }
1196
1197 int setup_pd_stack(void)
1198 {
1199         struct srd_decoder_inst *di_from, *di_to;
1200         int ret, i;
1201         char **pds, **ids;
1202
1203         /* Set up the protocol decoder stack. */
1204         pds = g_strsplit(opt_pds, ",", 0);
1205         if (g_strv_length(pds) > 1) {
1206                 if (opt_pd_stack) {
1207                         /* A stack setup was specified, use that. */
1208                         g_strfreev(pds);
1209                         pds = g_strsplit(opt_pd_stack, ",", 0);
1210                         if (g_strv_length(pds) < 2) {
1211                                 g_strfreev(pds);
1212                                 g_critical("Specify at least two protocol decoders to stack.");
1213                                 return 1;
1214                         }
1215                 }
1216
1217                 /* First PD goes at the bottom of the stack. */
1218                 ids = g_strsplit(pds[0], ":", 0);
1219                 if (!(di_from = srd_inst_find_by_id(srd_sess, ids[0]))) {
1220                         g_strfreev(ids);
1221                         g_critical("Cannot stack protocol decoder '%s': "
1222                                         "instance not found.", pds[0]);
1223                         return 1;
1224                 }
1225                 g_strfreev(ids);
1226
1227                 /* Every subsequent PD goes on top. */
1228                 for (i = 1; pds[i]; i++) {
1229                         ids = g_strsplit(pds[i], ":", 0);
1230                         if (!(di_to = srd_inst_find_by_id(srd_sess, ids[0]))) {
1231                                 g_strfreev(ids);
1232                                 g_critical("Cannot stack protocol decoder '%s': "
1233                                                 "instance not found.", pds[i]);
1234                                 return 1;
1235                         }
1236                         g_strfreev(ids);
1237                         if ((ret = srd_inst_stack(srd_sess, di_from, di_to)) != SRD_OK)
1238                                 return 1;
1239
1240                         /* Don't show annotation from this PD. Only the last PD in
1241                          * the stack will be left on the annotation list (unless
1242                          * the annotation list was specifically provided).
1243                          */
1244                         if (!opt_pd_annotations)
1245                                 g_hash_table_remove(pd_ann_visible,
1246                                                     di_from->inst_id);
1247
1248                         di_from = di_to;
1249                 }
1250         }
1251         g_strfreev(pds);
1252
1253         return 0;
1254 }
1255
1256 int setup_pd_annotations(void)
1257 {
1258         GSList *l;
1259         struct srd_decoder *dec;
1260         int ann;
1261         char **pds, **pdtok, **keyval, **ann_descr;
1262
1263         /* Set up custom list of PDs and annotations to show. */
1264         if (opt_pd_annotations) {
1265                 pds = g_strsplit(opt_pd_annotations, ",", 0);
1266                 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
1267                         ann = 0;
1268                         keyval = g_strsplit(*pdtok, "=", 0);
1269                         if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
1270                                 g_critical("Protocol decoder '%s' not found.", keyval[0]);
1271                                 return 1;
1272                         }
1273                         if (!dec->annotations) {
1274                                 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
1275                                 return 1;
1276                         }
1277                         if (g_strv_length(keyval) == 2) {
1278                                 for (l = dec->annotations; l; l = l->next, ann++) {
1279                                         ann_descr = l->data;
1280                                         if (!canon_cmp(ann_descr[0], keyval[1]))
1281                                                 /* Found it. */
1282                                                 break;
1283                                 }
1284                                 if (!l) {
1285                                         g_critical("Annotation '%s' not found "
1286                                                         "for protocol decoder '%s'.", keyval[1], keyval[0]);
1287                                         return 1;
1288                                 }
1289                         }
1290                         g_debug("cli: showing protocol decoder annotation %d from '%s'", ann, keyval[0]);
1291                         g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]), GINT_TO_POINTER(ann));
1292                         g_strfreev(keyval);
1293                 }
1294                 g_strfreev(pds);
1295         }
1296
1297         return 0;
1298 }
1299
1300 void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
1301 {
1302         struct srd_proto_data_annotation *pda;
1303         gpointer ann_format;
1304         int i;
1305
1306         /* 'cb_data' is not used in this specific callback. */
1307         (void)cb_data;
1308
1309         if (!pd_ann_visible)
1310                 return;
1311
1312         if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
1313                         NULL, &ann_format))
1314                 /* Not in the list of PDs whose annotations we're showing. */
1315                 return;
1316
1317         pda = pdata->data;
1318         if (pda->ann_format != GPOINTER_TO_INT(ann_format))
1319                 /* We don't want this particular format from the PD. */
1320                 return;
1321
1322         if (opt_loglevel > SR_LOG_WARN)
1323                 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
1324         printf("%s: ", pdata->pdo->proto_id);
1325         for (i = 0; pda->ann_text[i]; i++)
1326                 printf("\"%s\" ", pda->ann_text[i]);
1327         printf("\n");
1328         fflush(stdout);
1329 }
1330 #endif
1331
1332 int setup_output_format(void)
1333 {
1334         GHashTable *fmtargs;
1335         GHashTableIter iter;
1336         gpointer key, value;
1337         struct sr_output_format **outputs;
1338         int i;
1339         char *fmtspec;
1340
1341         if (opt_output_format && !strcmp(opt_output_format, "sigrok")) {
1342                 /* Doesn't really exist as an output module - this is
1343                  * the session save mode. */
1344                 g_free(opt_output_format);
1345                 opt_output_format = NULL;
1346         }
1347
1348         if (!opt_output_format) {
1349                 opt_output_format = DEFAULT_OUTPUT_FORMAT;
1350                 /* we'll need to remember this so when saving to a file
1351                  * later, sigrok session format will be used.
1352                  */
1353                 default_output_format = TRUE;
1354         }
1355
1356         fmtargs = parse_generic_arg(opt_output_format, TRUE);
1357         fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1358         if (!fmtspec) {
1359                 g_critical("Invalid output format.");
1360                 return 1;
1361         }
1362         outputs = sr_output_list();
1363         for (i = 0; outputs[i]; i++) {
1364                 if (strcmp(outputs[i]->id, fmtspec))
1365                         continue;
1366                 g_hash_table_remove(fmtargs, "sigrok_key");
1367                 output_format = outputs[i];
1368                 g_hash_table_iter_init(&iter, fmtargs);
1369                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1370                         /* only supporting one parameter per output module
1371                          * for now, and only its value */
1372                         output_format_param = g_strdup(value);
1373                         break;
1374                 }
1375                 break;
1376         }
1377         if (!output_format) {
1378                 g_critical("Invalid output format %s.", opt_output_format);
1379                 return 1;
1380         }
1381         g_hash_table_destroy(fmtargs);
1382
1383         return 0;
1384 }
1385
1386 static int select_probes(struct sr_dev_inst *sdi)
1387 {
1388         struct sr_probe *probe;
1389         GSList *selected_probes, *l;
1390
1391         if (!opt_probes)
1392                 return SR_OK;
1393
1394         if (!(selected_probes = parse_probestring(sdi, opt_probes)))
1395                 return SR_ERR;
1396
1397         for (l = sdi->probes; l; l = l->next) {
1398                 probe = l->data;
1399                 if (g_slist_find(selected_probes, probe))
1400                         probe->enabled = TRUE;
1401                 else
1402                         probe->enabled = FALSE;
1403         }
1404         g_slist_free(selected_probes);
1405
1406         return SR_OK;
1407 }
1408
1409 /**
1410  * Return the input file format which the CLI tool should use.
1411  *
1412  * If the user specified -I / --input-format, use that one. Otherwise, try to
1413  * autodetect the format as good as possible. Failing that, return NULL.
1414  *
1415  * @param filename The filename of the input file. Must not be NULL.
1416  * @param opt The -I / --input-file option the user specified (or NULL).
1417  *
1418  * @return A pointer to the 'struct sr_input_format' that should be used,
1419  *         or NULL if no input format was selected or auto-detected.
1420  */
1421 static struct sr_input_format *determine_input_file_format(
1422                         const char *filename, const char *opt)
1423 {
1424         int i;
1425         struct sr_input_format **inputs;
1426
1427         /* If there are no input formats, return NULL right away. */
1428         inputs = sr_input_list();
1429         if (!inputs) {
1430                 g_critical("No supported input formats available.");
1431                 return NULL;
1432         }
1433
1434         /* If the user specified -I / --input-format, use that one. */
1435         if (opt) {
1436                 for (i = 0; inputs[i]; i++) {
1437                         if (strcasecmp(inputs[i]->id, opt))
1438                                 continue;
1439                         g_debug("Using user-specified input file format '%s'.",
1440                                         inputs[i]->id);
1441                         return inputs[i];
1442                 }
1443
1444                 /* The user specified an unknown input format, return NULL. */
1445                 g_critical("Error: specified input file format '%s' is "
1446                         "unknown.", opt);
1447                 return NULL;
1448         }
1449
1450         /* Otherwise, try to find an input module that can handle this file. */
1451         for (i = 0; inputs[i]; i++) {
1452                 if (inputs[i]->format_match(filename))
1453                         break;
1454         }
1455
1456         /* Return NULL if no input module wanted to touch this. */
1457         if (!inputs[i]) {
1458                 g_critical("Error: no matching input module found.");
1459                 return NULL;
1460         }
1461
1462         g_debug("cli: Autodetected '%s' input format for file '%s'.",
1463                 inputs[i]->id, filename);
1464                 
1465         return inputs[i];
1466 }
1467
1468 static void load_input_file_format(void)
1469 {
1470         GHashTable *fmtargs = NULL;
1471         struct stat st;
1472         struct sr_input *in;
1473         struct sr_input_format *input_format;
1474         char *fmtspec = NULL;
1475
1476         if (opt_input_format) {
1477                 fmtargs = parse_generic_arg(opt_input_format, TRUE);
1478                 fmtspec = g_hash_table_lookup(fmtargs, "sigrok_key");
1479         }
1480
1481         if (!(input_format = determine_input_file_format(opt_input_file,
1482                                                    fmtspec))) {
1483                 /* The exact cause was already logged. */
1484                 return;
1485         }
1486
1487         if (fmtargs)
1488                 g_hash_table_remove(fmtargs, "sigrok_key");
1489
1490         if (stat(opt_input_file, &st) == -1) {
1491                 g_critical("Failed to load %s: %s", opt_input_file,
1492                         strerror(errno));
1493                 exit(1);
1494         }
1495
1496         /* Initialize the input module. */
1497         if (!(in = g_try_malloc(sizeof(struct sr_input)))) {
1498                 g_critical("Failed to allocate input module.");
1499                 exit(1);
1500         }
1501         in->format = input_format;
1502         in->param = fmtargs;
1503         if (in->format->init) {
1504                 if (in->format->init(in, opt_input_file) != SR_OK) {
1505                         g_critical("Input format init failed.");
1506                         exit(1);
1507                 }
1508         }
1509
1510         if (select_probes(in->sdi) > 0)
1511                 return;
1512
1513         sr_session_new();
1514         sr_session_datafeed_callback_add(datafeed_in, NULL);
1515         if (sr_session_dev_add(in->sdi) != SR_OK) {
1516                 g_critical("Failed to use device.");
1517                 sr_session_destroy();
1518                 return;
1519         }
1520
1521         input_format->loadfile(in, opt_input_file);
1522
1523         sr_session_destroy();
1524
1525         if (fmtargs)
1526                 g_hash_table_destroy(fmtargs);
1527 }
1528
1529 static void load_input_file(void)
1530 {
1531
1532         if (sr_session_load(opt_input_file) == SR_OK) {
1533                 /* sigrok session file */
1534                 sr_session_datafeed_callback_add(datafeed_in, NULL);
1535                 sr_session_start();
1536                 sr_session_run();
1537                 sr_session_stop();
1538         }
1539         else {
1540                 /* fall back on input modules */
1541                 load_input_file_format();
1542         }
1543 }
1544
1545 static int set_dev_options(struct sr_dev_inst *sdi, GHashTable *args)
1546 {
1547         const struct sr_config_info *srci;
1548         struct sr_probe_group *pg;
1549         GHashTableIter iter;
1550         gpointer key, value;
1551         int ret;
1552         double tmp_double;
1553         uint64_t tmp_u64, p, q, low, high;
1554         gboolean tmp_bool;
1555         GVariant *val, *rational[2], *range[2];
1556
1557         g_hash_table_iter_init(&iter, args);
1558         while (g_hash_table_iter_next(&iter, &key, &value)) {
1559                 if (!(srci = sr_config_info_name_get(key))) {
1560                         g_critical("Unknown device option '%s'.", (char *) key);
1561                         return SR_ERR;
1562                 }
1563
1564                 if ((value == NULL) &&
1565                         (srci->datatype != SR_T_BOOL)) {
1566                         g_critical("Option '%s' needs a value.", (char *)key);
1567                         return SR_ERR;
1568                 }
1569                 val = NULL;
1570                 switch (srci->datatype) {
1571                 case SR_T_UINT64:
1572                         ret = sr_parse_sizestring(value, &tmp_u64);
1573                         if (ret != SR_OK)
1574                                 break;
1575                         val = g_variant_new_uint64(tmp_u64);
1576                         break;
1577                 case SR_T_CHAR:
1578                         val = g_variant_new_string(value);
1579                         break;
1580                 case SR_T_BOOL:
1581                         if (!value)
1582                                 tmp_bool = TRUE;
1583                         else
1584                                 tmp_bool = sr_parse_boolstring(value);
1585                         val = g_variant_new_boolean(tmp_bool);
1586                         break;
1587                 case SR_T_FLOAT:
1588                         tmp_double = strtof(value, NULL);
1589                         val = g_variant_new_double(tmp_double);
1590                         break;
1591                 case SR_T_RATIONAL_PERIOD:
1592                         if ((ret = sr_parse_period(value, &p, &q)) != SR_OK)
1593                                 break;
1594                         rational[0] = g_variant_new_uint64(p);
1595                         rational[1] = g_variant_new_uint64(q);
1596                         val = g_variant_new_tuple(rational, 2);
1597                         break;
1598                 case SR_T_RATIONAL_VOLT:
1599                         if ((ret = sr_parse_voltage(value, &p, &q)) != SR_OK)
1600                                 break;
1601                         rational[0] = g_variant_new_uint64(p);
1602                         rational[1] = g_variant_new_uint64(q);
1603                         val = g_variant_new_tuple(rational, 2);
1604                         break;
1605                 case SR_T_UINT64_RANGE:
1606                         if (sscanf(value, "%"PRIu64"-%"PRIu64, &low, &high) != 2) {
1607                                 ret = SR_ERR;
1608                                 break;
1609                         } else {
1610                                 range[0] = g_variant_new_uint64(low);
1611                                 range[1] = g_variant_new_uint64(high);
1612                                 val = g_variant_new_tuple(range, 2);
1613                         }
1614                         break;
1615                 default:
1616                         ret = SR_ERR;
1617                 }
1618                 if (val) {
1619                         pg = select_probe_group(sdi);
1620                         ret = sr_config_set(sdi, pg, srci->key, val);
1621                 }
1622                 if (ret != SR_OK) {
1623                         g_critical("Failed to set device option '%s'.", (char *)key);
1624                         return ret;
1625                 }
1626         }
1627
1628         return SR_OK;
1629 }
1630
1631 static void set_options(void)
1632 {
1633         struct sr_dev_inst *sdi;
1634         GSList *devices;
1635         GHashTable *devargs;
1636
1637         if (!opt_config) {
1638                 g_critical("No setting specified.");
1639                 return;
1640         }
1641
1642         if (!(devargs = parse_generic_arg(opt_config, FALSE)))
1643                 return;
1644
1645         if (!(devices = device_scan())) {
1646                 g_critical("No devices found.");
1647                 return;
1648         }
1649         sdi = devices->data;
1650
1651         if (sr_dev_open(sdi) != SR_OK) {
1652                 g_critical("Failed to open device.");
1653                 return;
1654         }
1655
1656         set_dev_options(sdi, devargs);
1657
1658         sr_dev_close(sdi);
1659         g_slist_free(devices);
1660         g_hash_table_destroy(devargs);
1661
1662 }
1663
1664 static int set_limit_time(const struct sr_dev_inst *sdi)
1665 {
1666         GVariant *gvar;
1667         uint64_t time_msec;
1668         uint64_t samplerate;
1669
1670         if (!(time_msec = sr_parse_timestring(opt_time))) {
1671                 g_critical("Invalid time '%s'", opt_time);
1672                 return SR_ERR;
1673         }
1674
1675         if (sr_dev_has_option(sdi, SR_CONF_LIMIT_MSEC)) {
1676                 gvar = g_variant_new_uint64(time_msec);
1677                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_MSEC, gvar) != SR_OK) {
1678                         g_critical("Failed to configure time limit.");
1679                         return SR_ERR;
1680                 }
1681         } else if (sr_dev_has_option(sdi, SR_CONF_SAMPLERATE)) {
1682                 /* Convert to samples based on the samplerate.  */
1683                 sr_config_get(sdi->driver, sdi, NULL, SR_CONF_SAMPLERATE, &gvar);
1684                 samplerate = g_variant_get_uint64(gvar);
1685                 g_variant_unref(gvar);
1686                 limit_samples = (samplerate) * time_msec / (uint64_t)1000;
1687                 if (limit_samples == 0) {
1688                         g_critical("Not enough time at this samplerate.");
1689                         return SR_ERR;
1690                 }
1691                 gvar = g_variant_new_uint64(limit_samples);
1692                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
1693                         g_critical("Failed to configure time-based sample limit.");
1694                         return SR_ERR;
1695                 }
1696         } else {
1697                 g_critical("This device does not support time limits.");
1698                 return SR_ERR;
1699         }
1700
1701         return SR_OK;
1702 }
1703
1704 static void run_session(void)
1705 {
1706         GSList *devices;
1707         GHashTable *devargs;
1708         GVariant *gvar;
1709         struct sr_dev_inst *sdi;
1710         int max_probes, i;
1711         char **triggerlist;
1712
1713         devices = device_scan();
1714         if (!devices) {
1715                 g_critical("No devices found.");
1716                 return;
1717         }
1718         if (g_slist_length(devices) > 1) {
1719                 g_critical("sigrok-cli only supports one device for capturing.");
1720                 return;
1721         }
1722         sdi = devices->data;
1723
1724         sr_session_new();
1725         sr_session_datafeed_callback_add(datafeed_in, NULL);
1726
1727         if (sr_dev_open(sdi) != SR_OK) {
1728                 g_critical("Failed to open device.");
1729                 return;
1730         }
1731
1732         if (sr_session_dev_add(sdi) != SR_OK) {
1733                 g_critical("Failed to add device to session.");
1734                 sr_session_destroy();
1735                 return;
1736         }
1737
1738         if (opt_config) {
1739                 if ((devargs = parse_generic_arg(opt_config, FALSE))) {
1740                         if (set_dev_options(sdi, devargs) != SR_OK)
1741                                 return;
1742                         g_hash_table_destroy(devargs);
1743                 }
1744         }
1745
1746         if (select_probes(sdi) != SR_OK) {
1747                 g_critical("Failed to set probes.");
1748                 sr_session_destroy();
1749                 return;
1750         }
1751
1752         if (opt_triggers) {
1753                 if (!(triggerlist = sr_parse_triggerstring(sdi, opt_triggers))) {
1754                         sr_session_destroy();
1755                         return;
1756                 }
1757                 max_probes = g_slist_length(sdi->probes);
1758                 for (i = 0; i < max_probes; i++) {
1759                         if (triggerlist[i]) {
1760                                 sr_dev_trigger_set(sdi, i, triggerlist[i]);
1761                                 g_free(triggerlist[i]);
1762                         }
1763                 }
1764                 g_free(triggerlist);
1765         }
1766
1767         if (opt_continuous) {
1768                 if (!sr_dev_has_option(sdi, SR_CONF_CONTINUOUS)) {
1769                         g_critical("This device does not support continuous sampling.");
1770                         sr_session_destroy();
1771                         return;
1772                 }
1773         }
1774
1775         if (opt_time) {
1776                 if (set_limit_time(sdi) != SR_OK) {
1777                         sr_session_destroy();
1778                         return;
1779                 }
1780         }
1781
1782         if (opt_samples) {
1783                 if ((sr_parse_sizestring(opt_samples, &limit_samples) != SR_OK)) {
1784                         g_critical("Invalid sample limit '%s'.", opt_samples);
1785                         sr_session_destroy();
1786                         return;
1787                 }
1788                 gvar = g_variant_new_uint64(limit_samples);
1789                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_SAMPLES, gvar) != SR_OK) {
1790                         g_critical("Failed to configure sample limit.");
1791                         sr_session_destroy();
1792                         return;
1793                 }
1794         }
1795
1796         if (opt_frames) {
1797                 if ((sr_parse_sizestring(opt_frames, &limit_frames) != SR_OK)) {
1798                         g_critical("Invalid sample limit '%s'.", opt_samples);
1799                         sr_session_destroy();
1800                         return;
1801                 }
1802                 gvar = g_variant_new_uint64(limit_frames);
1803                 if (sr_config_set(sdi, NULL, SR_CONF_LIMIT_FRAMES, gvar) != SR_OK) {
1804                         g_critical("Failed to configure frame limit.");
1805                         sr_session_destroy();
1806                         return;
1807                 }
1808         }
1809
1810         if (sr_session_start() != SR_OK) {
1811                 g_critical("Failed to start session.");
1812                 sr_session_destroy();
1813                 return;
1814         }
1815
1816         if (opt_continuous)
1817                 add_anykey();
1818
1819         sr_session_run();
1820
1821         if (opt_continuous)
1822                 clear_anykey();
1823
1824         sr_session_datafeed_callback_remove_all();
1825         sr_session_destroy();
1826         g_slist_free(devices);
1827
1828 }
1829
1830 static void logger(const gchar *log_domain, GLogLevelFlags log_level,
1831                    const gchar *message, gpointer cb_data)
1832 {
1833         (void)log_domain;
1834         (void)cb_data;
1835
1836         /*
1837          * All messages, warnings, errors etc. go to stderr (not stdout) in
1838          * order to not mess up the CLI tool data output, e.g. VCD output.
1839          */
1840         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING)
1841                         || opt_loglevel > SR_LOG_WARN) {
1842                 fprintf(stderr, "%s\n", message);
1843                 fflush(stderr);
1844         }
1845
1846         if (log_level & (G_LOG_LEVEL_ERROR | G_LOG_LEVEL_CRITICAL))
1847                 exit(1);
1848
1849 }
1850
1851 int main(int argc, char **argv)
1852 {
1853         GOptionContext *context;
1854         GError *error;
1855         int ret;
1856         char *help;
1857
1858         g_log_set_default_handler(logger, NULL);
1859
1860         context = g_option_context_new(NULL);
1861         g_option_context_add_main_entries(context, optargs, NULL);
1862
1863         ret = 1;
1864         error = NULL;
1865         if (!g_option_context_parse(context, &argc, &argv, &error)) {
1866                 g_critical("%s", error->message);
1867                 goto done;
1868         }
1869
1870         /* Set the loglevel (amount of messages to output) for libsigrok. */
1871         if (sr_log_loglevel_set(opt_loglevel) != SR_OK)
1872                 goto done;
1873
1874         if (sr_init(&sr_ctx) != SR_OK)
1875                 goto done;
1876
1877 #ifdef HAVE_SRD
1878         /* Set the loglevel (amount of messages to output) for libsigrokdecode. */
1879         if (srd_log_loglevel_set(opt_loglevel) != SRD_OK)
1880                 goto done;
1881
1882         if (opt_pds) {
1883                 if (srd_init(NULL) != SRD_OK)
1884                         goto done;
1885                 if (srd_session_new(&srd_sess) != SRD_OK) {
1886                         g_critical("Failed to create new decode session.");
1887                         goto done;
1888                 }
1889                 if (register_pds(NULL, opt_pds) != 0)
1890                         goto done;
1891                 if (srd_pd_output_callback_add(srd_sess, SRD_OUTPUT_ANN,
1892                                 show_pd_annotations, NULL) != SRD_OK)
1893                         goto done;
1894                 if (setup_pd_stack() != 0)
1895                         goto done;
1896                 if (setup_pd_annotations() != 0)
1897                         goto done;
1898         }
1899 #endif
1900
1901         if (setup_output_format() != 0)
1902                 goto done;
1903
1904         if (opt_version)
1905                 show_version();
1906         else if (opt_scan_devs)
1907                 show_dev_list();
1908 #ifdef HAVE_SRD
1909         else if (opt_pds && opt_show)
1910                 show_pd_detail();
1911 #endif
1912         else if (opt_show)
1913                 show_dev_detail();
1914         else if (opt_input_file)
1915                 load_input_file();
1916         else if (opt_set)
1917                 set_options();
1918         else if (opt_samples || opt_time || opt_frames || opt_continuous)
1919                 run_session();
1920         else {
1921                 help = g_option_context_get_help(context, TRUE, NULL);
1922                 printf("%s", help);
1923                 g_free(help);
1924         }
1925
1926 #ifdef HAVE_SRD
1927         if (opt_pds)
1928                 srd_exit();
1929 #endif
1930
1931         ret = 0;
1932
1933 done:
1934         if (sr_ctx)
1935                 sr_exit(sr_ctx);
1936
1937         g_option_context_free(context);
1938
1939         return ret;
1940 }