]> sigrok.org Git - sigrok-cli.git/blame - decode.c
Support multiple protocol decoder stacks
[sigrok-cli.git] / decode.c
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1/*
2 * This file is part of the sigrok-cli project.
3 *
4 * Copyright (C) 2013 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
d486cbdd 20#include <config.h>
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21#include <stdlib.h>
22#include <string.h>
2be182e6 23#include <glib.h>
662a1e27 24#include "sigrok-cli.h"
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25
26#ifdef HAVE_SRD
27static GHashTable *pd_ann_visible = NULL;
28static GHashTable *pd_meta_visible = NULL;
29static GHashTable *pd_binary_visible = NULL;
3dfbfbc8 30static GHashTable *pd_channel_maps = NULL;
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31
32extern struct srd_session *srd_sess;
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33
34static int opts_to_gvar(struct srd_decoder *dec, GHashTable *hash,
35 GHashTable **options)
36{
37 struct srd_decoder_option *o;
38 GSList *optl;
39 GVariant *gvar;
40 gint64 val_int;
41 int ret;
42 char *val_str, *conv;
43
44 ret = TRUE;
45 *options = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
46 (GDestroyNotify)g_variant_unref);
47
48 for (optl = dec->options; optl; optl = optl->next) {
49 o = optl->data;
50 if (!(val_str = g_hash_table_lookup(hash, o->id)))
51 /* Not specified. */
52 continue;
53 if (g_variant_is_of_type(o->def, G_VARIANT_TYPE_STRING)) {
54 gvar = g_variant_new_string(val_str);
55 } else if (g_variant_is_of_type(o->def, G_VARIANT_TYPE_INT64)) {
56 val_int = strtoll(val_str, &conv, 0);
57 if (!conv || conv == val_str) {
58 g_critical("Protocol decoder '%s' option '%s' "
59 "requires a number.", dec->name, o->id);
60 ret = FALSE;
61 break;
62 }
63 gvar = g_variant_new_int64(val_int);
64 } else {
65 g_critical("Unsupported type for option '%s' (%s)",
66 o->id, g_variant_get_type_string(o->def));
67 ret = FALSE;
68 break;
69 }
70 g_variant_ref_sink(gvar);
71 g_hash_table_insert(*options, g_strdup(o->id), gvar);
72 g_hash_table_remove(hash, o->id);
73 }
74
75 return ret;
76}
77
39aedc34 78static int move_hash_element(GHashTable *src, GHashTable *dest, void *key)
2be182e6 79{
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80 void *orig_key, *value;
81
82 if (!g_hash_table_lookup_extended(src, key, &orig_key, &value))
83 /* Not specified. */
84 return FALSE;
85 g_hash_table_steal(src, orig_key);
86 g_hash_table_insert(dest, orig_key, value);
87
88 return TRUE;
89}
90
3dfbfbc8 91static GHashTable *extract_channel_map(struct srd_decoder *dec, GHashTable *hash)
39aedc34 92{
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93 GHashTable *channel_map;
94 struct srd_channel *pdch;
39aedc34 95 GSList *l;
2be182e6 96
3dfbfbc8 97 channel_map = g_hash_table_new_full(g_str_hash, g_str_equal,
39aedc34 98 g_free, g_free);
2be182e6 99
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100 for (l = dec->channels; l; l = l->next) {
101 pdch = l->data;
102 move_hash_element(hash, channel_map, pdch->id);
39aedc34 103 }
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104 for (l = dec->opt_channels; l; l = l->next) {
105 pdch = l->data;
106 move_hash_element(hash, channel_map, pdch->id);
2be182e6 107 }
2be182e6 108
3dfbfbc8 109 return channel_map;
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110}
111
551f570c 112static int register_pd(char *opt_pds, char *opt_pd_annotations)
2be182e6 113{
551f570c 114 int ret;
2be182e6 115 struct srd_decoder *dec;
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116 struct srd_decoder_inst *di, *di_prior;
117 char **pdtokens, **pdtok, *pd_name;
3dfbfbc8 118 GHashTable *pd_opthash, *options, *channels;
2be182e6 119 GList *leftover, *l;
2be182e6 120
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121 ret = 0;
122 pd_name = NULL;
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123 di_prior = NULL;
124 pd_opthash = options = channels = NULL;
125
26c63758 126 pdtokens = g_strsplit(opt_pds, ",", 0);
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127 for (pdtok = pdtokens; *pdtok; pdtok++) {
128 if (!(pd_opthash = parse_generic_arg(*pdtok, TRUE))) {
129 g_critical("Invalid protocol decoder option '%s'.", *pdtok);
130 break;
131 }
132
133 pd_name = g_strdup(g_hash_table_lookup(pd_opthash, "sigrok_key"));
134 g_hash_table_remove(pd_opthash, "sigrok_key");
135 if (srd_decoder_load(pd_name) != SRD_OK) {
136 g_critical("Failed to load protocol decoder %s.", pd_name);
137 ret = 1;
138 break;
139 }
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140 if (!(dec = srd_decoder_get_by_id(pd_name))) {
141 g_critical("Failed to get decoder %s by id.", pd_name);
142 ret = 1;
143 break;
144 }
2be182e6 145
3dfbfbc8 146 /* Convert decoder option and channel values to GVariant. */
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147 if (!opts_to_gvar(dec, pd_opthash, &options)) {
148 ret = 1;
149 break;
150 }
3dfbfbc8 151 channels = extract_channel_map(dec, pd_opthash);
39aedc34 152
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153 if (g_hash_table_size(pd_opthash) > 0) {
154 leftover = g_hash_table_get_keys(pd_opthash);
155 for (l = leftover; l; l = l->next)
3dfbfbc8 156 g_critical("Unknown option or channel '%s'", (char *)l->data);
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157 g_list_free(leftover);
158 break;
159 }
160
161 if (!(di = srd_inst_new(srd_sess, pd_name, options))) {
162 g_critical("Failed to instantiate protocol decoder %s.", pd_name);
163 ret = 1;
164 break;
165 }
166
09fea207 167 if (pdtok == pdtokens) {
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168 /*
169 * Save the channel setup for later, but only on the
170 * first decoder (stacked decoders don't get channels).
171 */
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172 g_hash_table_insert(pd_channel_maps, g_strdup(di->inst_id), channels);
173 channels = NULL;
09fea207 174 }
39aedc34 175
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176 /*
177 * If no annotation list was specified, add them all in now.
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178 * This will be pared down later to leave only the last PD
179 * in the stack.
180 */
551f570c 181 if (!opt_pd_annotations) {
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182 g_hash_table_insert(pd_ann_visible, g_strdup(di->inst_id),
183 g_slist_append(NULL, GINT_TO_POINTER(-1)));
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184 }
185 if (di_prior) {
186 if (srd_inst_stack(srd_sess, di_prior, di) != SRD_OK) {
187 g_critical("Failed to stack %s -> %s.",
188 di_prior->inst_id, di->inst_id);
189 ret = 1;
190 break;
191 }
192 /* Remove annotations from prior levels. */
193 if (!opt_pd_annotations)
194 g_hash_table_remove(pd_ann_visible, di_prior->inst_id);
195 }
196 di_prior = di;
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197 }
198
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199 if (pd_opthash)
200 g_hash_table_destroy(pd_opthash);
201 if (options)
202 g_hash_table_destroy(options);
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203 if (channels)
204 g_hash_table_destroy(channels);
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205
206 g_strfreev(pdtokens);
ad92a2b3 207 g_free(pd_name);
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208
209 return ret;
210}
211
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212/*
213 * Register all the PDs from all stacks.
214 *
215 * Each PD string is a single stack such as "uart:baudrate=19200,modbus".
216 */
217int register_pds(gchar **all_pds, char *opt_pd_annotations)
218{
219 int ret;
220
221 ret = 0;
222 pd_ann_visible = g_hash_table_new_full(g_str_hash, g_str_equal,
223 g_free, NULL);
224 pd_channel_maps = g_hash_table_new_full(g_str_hash,
225 g_str_equal, g_free, (GDestroyNotify)g_hash_table_destroy);
226
227 for (int i = 0; all_pds[i]; i++)
228 ret += register_pd(all_pds[i], opt_pd_annotations);
229
230 return ret;
231}
232
3dfbfbc8 233static void map_pd_inst_channels(void *key, void *value, void *user_data)
39aedc34 234{
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235 GHashTable *channel_map;
236 GHashTable *channel_indices;
237 GSList *channel_list;
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238 struct srd_decoder_inst *di;
239 GVariant *var;
3dfbfbc8 240 void *channel_id;
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241 void *channel_target;
242 struct sr_channel *ch;
39aedc34 243 GHashTableIter iter;
39aedc34 244
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245 channel_map = value;
246 channel_list = user_data;
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247
248 di = srd_inst_find_by_id(srd_sess, key);
249 if (!di) {
250 g_critical("Protocol decoder instance \"%s\" not found.",
251 (char *)key);
252 return;
253 }
3dfbfbc8 254 channel_indices = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
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255 (GDestroyNotify)g_variant_unref);
256
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257 g_hash_table_iter_init(&iter, channel_map);
258 while (g_hash_table_iter_next(&iter, &channel_id, &channel_target)) {
259 ch = find_channel(channel_list, channel_target);
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260 if (!ch) {
261 g_printerr("cli: No channel with name \"%s\" found.\n",
262 (char *)channel_target);
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263 continue;
264 }
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265 if (!ch->enabled)
266 g_printerr("cli: Target channel \"%s\" not enabled.\n",
267 (char *)channel_target);
39aedc34 268
029d73fe 269 var = g_variant_new_int32(ch->index);
39aedc34 270 g_variant_ref_sink(var);
3dfbfbc8 271 g_hash_table_insert(channel_indices, g_strdup(channel_id), var);
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272 }
273
ee639fb4 274 srd_inst_channel_set_all(di, channel_indices);
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275}
276
3dfbfbc8 277void map_pd_channels(struct sr_dev_inst *sdi)
39aedc34 278{
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279 GSList *channels;
280
281 channels = sr_dev_inst_channels_get(sdi);
282
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283 if (pd_channel_maps) {
284 g_hash_table_foreach(pd_channel_maps, &map_pd_inst_channels,
c6fa2b2e 285 channels);
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286 g_hash_table_destroy(pd_channel_maps);
287 pd_channel_maps = NULL;
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288 }
289}
290
26c63758 291int setup_pd_annotations(char *opt_pd_annotations)
2be182e6 292{
790b0261 293 GSList *l, *l_ann;
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294 struct srd_decoder *dec;
295 int ann_class;
790b0261 296 char **pds, **pdtok, **keyval, **annlist, **ann, **ann_descr;
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297
298 /* Set up custom list of PDs and annotations to show. */
299 pds = g_strsplit(opt_pd_annotations, ",", 0);
300 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
301 keyval = g_strsplit(*pdtok, "=", 0);
302 if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
303 g_critical("Protocol decoder '%s' not found.", keyval[0]);
304 return 1;
305 }
306 if (!dec->annotations) {
307 g_critical("Protocol decoder '%s' has no annotations.", keyval[0]);
308 return 1;
309 }
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310 if (g_strv_length(keyval) == 2 && keyval[1][0] != '\0') {
311 annlist = g_strsplit(keyval[1], ":", 0);
312 for (ann = annlist; *ann && **ann; ann++) {
313 ann_class = 0;
314 for (l = dec->annotations; l; l = l->next, ann_class++) {
315 ann_descr = l->data;
316 if (!canon_cmp(ann_descr[0], *ann))
317 /* Found it. */
318 break;
319 }
320 if (!l) {
321 g_critical("Annotation '%s' not found "
322 "for protocol decoder '%s'.", *ann, keyval[0]);
323 return 1;
324 }
325 l_ann = g_hash_table_lookup(pd_ann_visible, keyval[0]);
326 l_ann = g_slist_append(l_ann, GINT_TO_POINTER(ann_class));
327 g_hash_table_replace(pd_ann_visible, g_strdup(keyval[0]), l_ann);
328 g_debug("cli: Showing protocol decoder %s annotation "
329 "class %d (%s).", keyval[0], ann_class, ann_descr[0]);
2be182e6 330 }
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331 } else {
332 /* No class specified: show all of them. */
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333 g_hash_table_insert(pd_ann_visible, g_strdup(keyval[0]),
334 g_slist_append(NULL, GINT_TO_POINTER(-1)));
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335 g_debug("cli: Showing all annotation classes for protocol "
336 "decoder %s.", keyval[0]);
337 }
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338 g_strfreev(keyval);
339 }
340 g_strfreev(pds);
341
342 return 0;
343}
344
26c63758 345int setup_pd_meta(char *opt_pd_meta)
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346{
347 struct srd_decoder *dec;
348 char **pds, **pdtok;
349
350 pd_meta_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
351 g_free, NULL);
352 pds = g_strsplit(opt_pd_meta, ",", 0);
353 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
354 if (!(dec = srd_decoder_get_by_id(*pdtok))) {
355 g_critical("Protocol decoder '%s' not found.", *pdtok);
356 return 1;
357 }
358 g_debug("cli: Showing protocol decoder meta output from '%s'.", *pdtok);
359 g_hash_table_insert(pd_meta_visible, g_strdup(*pdtok), NULL);
360 }
361 g_strfreev(pds);
362
363 return 0;
364}
365
26c63758 366int setup_pd_binary(char *opt_pd_binary)
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367{
368 GSList *l;
369 struct srd_decoder *dec;
370 int bin_class;
5ff52594 371 char **pds, **pdtok, **keyval, **bin_name;
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372
373 pd_binary_visible = g_hash_table_new_full(g_str_hash, g_int_equal,
374 g_free, NULL);
375 pds = g_strsplit(opt_pd_binary, ",", 0);
376 for (pdtok = pds; *pdtok && **pdtok; pdtok++) {
377 keyval = g_strsplit(*pdtok, "=", 0);
378 if (!(dec = srd_decoder_get_by_id(keyval[0]))) {
379 g_critical("Protocol decoder '%s' not found.", keyval[0]);
380 return 1;
381 }
382 if (!dec->binary) {
383 g_critical("Protocol decoder '%s' has no binary output.", keyval[0]);
384 return 1;
385 }
386 bin_class = 0;
387 if (g_strv_length(keyval) == 2) {
388 for (l = dec->binary; l; l = l->next, bin_class++) {
389 bin_name = l->data;
5ff52594 390 if (!strcmp(bin_name[0], keyval[1]))
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391 /* Found it. */
392 break;
393 }
394 if (!l) {
395 g_critical("binary output '%s' not found "
396 "for protocol decoder '%s'.", keyval[1], keyval[0]);
397 return 1;
398 }
399 g_debug("cli: Showing protocol decoder %s binary class "
5ff52594 400 "%d (%s).", keyval[0], bin_class, bin_name[0]);
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401 } else {
402 /* No class specified: output all of them. */
403 bin_class = -1;
404 g_debug("cli: Showing all binary classes for protocol "
405 "decoder %s.", keyval[0]);
406 }
407 g_hash_table_insert(pd_binary_visible, g_strdup(keyval[0]), GINT_TO_POINTER(bin_class));
408 g_strfreev(keyval);
409 }
410 g_strfreev(pds);
411
412 return 0;
413}
414
415void show_pd_annotations(struct srd_proto_data *pdata, void *cb_data)
416{
6fdcc67d 417 struct srd_decoder *dec;
2be182e6 418 struct srd_proto_data_annotation *pda;
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419 GSList *ann_list, *l;
420 int i;
6fdcc67d 421 char **ann_descr;
790b0261 422 gboolean show;
2be182e6 423
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424 (void)cb_data;
425
426 if (!pd_ann_visible)
427 return;
428
429 if (!g_hash_table_lookup_extended(pd_ann_visible, pdata->pdo->di->inst_id,
790b0261 430 NULL, (void **)&ann_list))
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431 /* Not in the list of PDs whose annotations we're showing. */
432 return;
433
6fdcc67d 434 dec = pdata->pdo->di->decoder;
2be182e6 435 pda = pdata->data;
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436 show = FALSE;
437 for (l = ann_list; l; l = l->next) {
438 if (GPOINTER_TO_INT(l->data) == -1
a23105b1 439 || GPOINTER_TO_INT(l->data) == pda->ann_class) {
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440 show = TRUE;
441 break;
442 }
443 }
444 if (!show)
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445 return;
446
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447 if (opt_loglevel <= SR_LOG_WARN) {
448 /* Show only the longest annotation. */
6d1dbe35 449 printf("%s", pda->ann_text[0]);
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450 } else if (opt_loglevel >= SR_LOG_INFO) {
451 /* Sample numbers and quotes around the longest annotation. */
6d1dbe35 452 printf("%"PRIu64"-%"PRIu64"", pdata->start_sample, pdata->end_sample);
6fdcc67d 453 if (opt_loglevel == SR_LOG_INFO) {
6d1dbe35 454 printf(" \"%s\"", pda->ann_text[0]);
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455 } else {
456 /* Protocol decoder id, annotation class,
457 * all annotation strings. */
a23105b1 458 ann_descr = g_slist_nth_data(dec->annotations, pda->ann_class);
6d1dbe35 459 printf(" %s: %s:", pdata->pdo->proto_id, ann_descr[0]);
6fdcc67d 460 for (i = 0; pda->ann_text[i]; i++)
6d1dbe35 461 printf(" \"%s\"", pda->ann_text[i]);
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462 }
463 }
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464 printf("\n");
465 fflush(stdout);
466}
467
468void show_pd_meta(struct srd_proto_data *pdata, void *cb_data)
469{
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470 (void)cb_data;
471
472 if (!g_hash_table_lookup_extended(pd_meta_visible,
473 pdata->pdo->di->decoder->id, NULL, NULL))
474 /* Not in the list of PDs whose meta output we're showing. */
475 return;
476
477 if (opt_loglevel > SR_LOG_WARN)
478 printf("%"PRIu64"-%"PRIu64" ", pdata->start_sample, pdata->end_sample);
479 printf("%s: ", pdata->pdo->proto_id);
480 printf("%s: %s", pdata->pdo->meta_name, g_variant_print(pdata->data, FALSE));
481 printf("\n");
482 fflush(stdout);
483}
484
485void show_pd_binary(struct srd_proto_data *pdata, void *cb_data)
486{
487 struct srd_proto_data_binary *pdb;
488 gpointer classp;
489 int class;
490
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491 (void)cb_data;
492
493 if (!g_hash_table_lookup_extended(pd_binary_visible,
494 pdata->pdo->di->decoder->id, NULL, (void **)&classp))
495 /* Not in the list of PDs whose meta output we're showing. */
496 return;
497
498 class = GPOINTER_TO_INT(classp);
499 pdb = pdata->data;
500 if (class != -1 && class != pdb->bin_class)
501 /* Not showing this binary class. */
502 return;
503
504 /* Just send the binary output to stdout, no embellishments. */
505 fwrite(pdb->data, pdb->size, 1, stdout);
506 fflush(stdout);
507}
508#endif