]> code.delx.au - pulseaudio/blob - src/modules/dbus/iface-card.c
dbusiface-card-profile: Implement the CardProfile D-Bus interface.
[pulseaudio] / src / modules / dbus / iface-card.c
1 /***
2 This file is part of PulseAudio.
3
4 Copyright 2009 Tanu Kaskinen
5
6 PulseAudio is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published
8 by the Free Software Foundation; either version 2.1 of the License,
9 or (at your option) any later version.
10
11 PulseAudio is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with PulseAudio; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 USA.
20 ***/
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include <dbus/dbus.h>
27
28 #include <pulsecore/core-util.h>
29 #include <pulsecore/dbus-util.h>
30 #include <pulsecore/protocol-dbus.h>
31
32 #include "iface-card-profile.h"
33
34 #include "iface-card.h"
35
36 #define OBJECT_NAME "card"
37
38 static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata);
39 static void handle_get_name(DBusConnection *conn, DBusMessage *msg, void *userdata);
40 static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata);
41 static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata);
42 static void handle_get_sinks(DBusConnection *conn, DBusMessage *msg, void *userdata);
43 static void handle_get_sources(DBusConnection *conn, DBusMessage *msg, void *userdata);
44 static void handle_get_profiles(DBusConnection *conn, DBusMessage *msg, void *userdata);
45 static void handle_get_active_profile(DBusConnection *conn, DBusMessage *msg, void *userdata);
46 static void handle_set_active_profile(DBusConnection *conn, DBusMessage *msg, void *userdata);
47 static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata);
48
49 static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata);
50
51 static void handle_get_profile_by_name(DBusConnection *conn, DBusMessage *msg, void *userdata);
52
53 struct pa_dbusiface_card {
54 pa_dbusiface_core *core;
55
56 pa_card *card;
57 char *path;
58 pa_hashmap *profiles;
59 uint32_t next_profile_index;
60 pa_card_profile *active_profile;
61 pa_proplist *proplist;
62
63 pa_dbus_protocol *dbus_protocol;
64 pa_subscription *subscription;
65 };
66
67 enum property_handler_index {
68 PROPERTY_HANDLER_INDEX,
69 PROPERTY_HANDLER_NAME,
70 PROPERTY_HANDLER_DRIVER,
71 PROPERTY_HANDLER_OWNER_MODULE,
72 PROPERTY_HANDLER_SINKS,
73 PROPERTY_HANDLER_SOURCES,
74 PROPERTY_HANDLER_PROFILES,
75 PROPERTY_HANDLER_ACTIVE_PROFILE,
76 PROPERTY_HANDLER_PROPERTY_LIST,
77 PROPERTY_HANDLER_MAX
78 };
79
80 static pa_dbus_property_handler property_handlers[PROPERTY_HANDLER_MAX] = {
81 [PROPERTY_HANDLER_INDEX] = { .property_name = "Index", .type = "u", .get_cb = handle_get_index, .set_cb = NULL },
82 [PROPERTY_HANDLER_NAME] = { .property_name = "Name", .type = "s", .get_cb = handle_get_name, .set_cb = NULL },
83 [PROPERTY_HANDLER_DRIVER] = { .property_name = "Driver", .type = "s", .get_cb = handle_get_driver, .set_cb = NULL },
84 [PROPERTY_HANDLER_OWNER_MODULE] = { .property_name = "OwnerModule", .type = "o", .get_cb = handle_get_owner_module, .set_cb = NULL },
85 [PROPERTY_HANDLER_SINKS] = { .property_name = "Sinks", .type = "ao", .get_cb = handle_get_sinks, .set_cb = NULL },
86 [PROPERTY_HANDLER_SOURCES] = { .property_name = "Sources", .type = "ao", .get_cb = handle_get_sources, .set_cb = NULL },
87 [PROPERTY_HANDLER_PROFILES] = { .property_name = "Profiles", .type = "ao", .get_cb = handle_get_profiles, .set_cb = NULL },
88 [PROPERTY_HANDLER_ACTIVE_PROFILE] = { .property_name = "ActiveProfile", .type = "o", .get_cb = handle_get_active_profile, .set_cb = handle_set_active_profile },
89 [PROPERTY_HANDLER_PROPERTY_LIST] = { .property_name = "PropertyList", .type = "a{say}", .get_cb = handle_get_property_list, .set_cb = NULL }
90 };
91
92 enum method_handler_index {
93 METHOD_HANDLER_GET_PROFILE_BY_NAME,
94 METHOD_HANDLER_MAX
95 };
96
97 static pa_dbus_arg_info get_profile_by_name_args[] = { { "name", "s", "in" }, { "profile", "o", "out" } };
98
99 static pa_dbus_method_handler method_handlers[METHOD_HANDLER_MAX] = {
100 [METHOD_HANDLER_GET_PROFILE_BY_NAME] = {
101 .method_name = "GetProfileByName",
102 .arguments = get_profile_by_name_args,
103 .n_arguments = sizeof(get_profile_by_name_args) / sizeof(pa_dbus_arg_info),
104 .receive_cb = handle_get_profile_by_name }
105 };
106
107 enum signal_index {
108 SIGNAL_ACTIVE_PROFILE_UPDATED,
109 SIGNAL_PROPERTY_LIST_UPDATED,
110 SIGNAL_MAX
111 };
112
113 static pa_dbus_arg_info active_profile_updated_args[] = { { "profile", "o", NULL } };
114 static pa_dbus_arg_info property_list_updated_args[] = { { "property_list", "a{say}", NULL } };
115
116 static pa_dbus_signal_info signals[SIGNAL_MAX] = {
117 [SIGNAL_ACTIVE_PROFILE_UPDATED] = { .name = "ActiveProfileUpdated", .arguments = active_profile_updated_args, .n_arguments = 1 },
118 [SIGNAL_PROPERTY_LIST_UPDATED] = { .name = "PropertyListUpdated", .arguments = property_list_updated_args, .n_arguments = 1 }
119 };
120
121 static pa_dbus_interface_info card_interface_info = {
122 .name = PA_DBUSIFACE_CARD_INTERFACE,
123 .method_handlers = method_handlers,
124 .n_method_handlers = METHOD_HANDLER_MAX,
125 .property_handlers = property_handlers,
126 .n_property_handlers = PROPERTY_HANDLER_MAX,
127 .get_all_properties_cb = handle_get_all,
128 .signals = signals,
129 .n_signals = SIGNAL_MAX
130 };
131
132 static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata) {
133 pa_dbusiface_card *c = userdata;
134 dbus_uint32_t idx;
135
136 pa_assert(conn);
137 pa_assert(msg);
138 pa_assert(c);
139
140 idx = c->card->index;
141
142 pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &idx);
143 }
144
145 static void handle_get_name(DBusConnection *conn, DBusMessage *msg, void *userdata) {
146 pa_dbusiface_card *c = userdata;
147
148 pa_assert(conn);
149 pa_assert(msg);
150 pa_assert(c);
151
152 pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &c->card->name);
153 }
154
155 static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata) {
156 pa_dbusiface_card *c = userdata;
157
158 pa_assert(conn);
159 pa_assert(msg);
160 pa_assert(c);
161
162 pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &c->card->driver);
163 }
164
165 static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata) {
166 pa_dbusiface_card *c = userdata;
167 const char *owner_module;
168
169 pa_assert(conn);
170 pa_assert(msg);
171 pa_assert(c);
172
173 if (!c->card->module) {
174 pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Card %s doesn't have an owner module.", c->card->name);
175 return;
176 }
177
178 owner_module = pa_dbusiface_core_get_module_path(c->core, c->card->module);
179
180 pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &owner_module);
181 }
182
183 /* The caller frees the array, but not the strings. */
184 static const char **get_sinks(pa_dbusiface_card *c, unsigned *n) {
185 const char **sinks = NULL;
186 unsigned i = 0;
187 uint32_t idx = 0;
188 pa_sink *sink = NULL;
189
190 pa_assert(c);
191 pa_assert(n);
192
193 *n = pa_idxset_size(c->card->sinks);
194
195 if (*n == 0)
196 return NULL;
197
198 sinks = pa_xnew(const char *, *n);
199
200 PA_IDXSET_FOREACH(sink, c->card->sinks, idx) {
201 sinks[i] = pa_dbusiface_core_get_sink_path(c->core, sink);
202 ++i;
203 }
204
205 return sinks;
206 }
207
208 static void handle_get_sinks(DBusConnection *conn, DBusMessage *msg, void *userdata) {
209 pa_dbusiface_card *c = userdata;
210 const char **sinks;
211 unsigned n_sinks;
212
213 pa_assert(conn);
214 pa_assert(msg);
215 pa_assert(c);
216
217 sinks = get_sinks(c, &n_sinks);
218
219 pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, sinks, n_sinks);
220
221 pa_xfree(sinks);
222 }
223
224 /* The caller frees the array, but not the strings. */
225 static const char **get_sources(pa_dbusiface_card *c, unsigned *n) {
226 const char **sources = NULL;
227 unsigned i = 0;
228 uint32_t idx = 0;
229 pa_source *source = NULL;
230
231 pa_assert(c);
232 pa_assert(n);
233
234 *n = pa_idxset_size(c->card->sources);
235
236 if (*n == 0)
237 return NULL;
238
239 sources = pa_xnew(const char *, *n);
240
241 PA_IDXSET_FOREACH(source, c->card->sinks, idx) {
242 sources[i] = pa_dbusiface_core_get_source_path(c->core, source);
243 ++i;
244 }
245
246 return sources;
247 }
248
249 static void handle_get_sources(DBusConnection *conn, DBusMessage *msg, void *userdata) {
250 pa_dbusiface_card *c = userdata;
251 const char **sources;
252 unsigned n_sources;
253
254 pa_assert(conn);
255 pa_assert(msg);
256 pa_assert(c);
257
258 sources = get_sources(c, &n_sources);
259
260 pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, sources, n_sources);
261
262 pa_xfree(sources);
263 }
264
265 /* The caller frees the array, but not the strings. */
266 static const char **get_profiles(pa_dbusiface_card *c, unsigned *n) {
267 const char **profiles;
268 unsigned i = 0;
269 void *state = NULL;
270 pa_dbusiface_card_profile *profile;
271
272 pa_assert(c);
273 pa_assert(n);
274
275 *n = pa_hashmap_size(c->profiles);
276
277 if (*n == 0)
278 return NULL;
279
280 profiles = pa_xnew(const char *, *n);
281
282 PA_HASHMAP_FOREACH(profile, c->profiles, state) {
283 profiles[i] = pa_dbusiface_card_profile_get_path(profile);
284 ++i;
285 }
286
287 return profiles;
288 }
289
290 static void handle_get_profiles(DBusConnection *conn, DBusMessage *msg, void *userdata) {
291 pa_dbusiface_card *c = userdata;
292 const char **profiles;
293 unsigned n_profiles;
294
295 pa_assert(conn);
296 pa_assert(msg);
297 pa_assert(c);
298
299 profiles = get_profiles(c, &n_profiles);
300
301 pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, profiles, n_profiles);
302
303 pa_xfree(profiles);
304 }
305
306 static void handle_get_active_profile(DBusConnection *conn, DBusMessage *msg, void *userdata) {
307 pa_dbusiface_card *c = userdata;
308 const char *active_profile;
309
310 pa_assert(conn);
311 pa_assert(msg);
312 pa_assert(c);
313
314 if (!c->active_profile) {
315 pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "The card %s has no profiles, and therefore there's no active profile either.", c->card->name);
316 return;
317 }
318
319 active_profile = pa_dbusiface_card_profile_get_path(pa_hashmap_get(c->profiles, c->active_profile->name));
320
321 pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &active_profile);
322 }
323
324 static void handle_set_active_profile(DBusConnection *conn, DBusMessage *msg, void *userdata) {
325 pa_dbusiface_card *c = userdata;
326 const char *new_active_path;
327 pa_dbusiface_card_profile *new_active;
328 int r;
329
330 pa_assert(conn);
331 pa_assert(msg);
332 pa_assert(c);
333
334 if (pa_dbus_get_basic_set_property_arg(conn, msg, DBUS_TYPE_OBJECT_PATH, &new_active_path) < 0)
335 return;
336
337 if (!c->active_profile) {
338 pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY,
339 "The card %s has no profiles, and therefore there's no active profile either.",
340 c->card->name);
341 return;
342 }
343
344 if (!(new_active = pa_hashmap_get(c->profiles, new_active_path))) {
345 pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such profile.", new_active_path);
346 return;
347 }
348
349 if ((r = pa_card_set_profile(c->card, pa_dbusiface_card_profile_get_name(new_active), TRUE)) < 0) {
350 pa_dbus_send_error(conn, msg, DBUS_ERROR_FAILED,
351 "Internal error in PulseAudio: pa_card_set_profile() failed with error code %i.", r);
352 return;
353 }
354
355 pa_dbus_send_empty_reply(conn, msg);
356 }
357
358 static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata) {
359 pa_dbusiface_card *c = userdata;
360
361 pa_assert(conn);
362 pa_assert(msg);
363 pa_assert(c);
364
365 pa_dbus_send_proplist_variant_reply(conn, msg, c->proplist);
366 }
367
368 static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata) {
369 pa_dbusiface_card *c = userdata;
370 DBusMessage *reply = NULL;
371 DBusMessageIter msg_iter;
372 DBusMessageIter dict_iter;
373 dbus_uint32_t idx;
374 const char *owner_module = NULL;
375 const char **sinks = NULL;
376 unsigned n_sinks = 0;
377 const char **sources = NULL;
378 unsigned n_sources = 0;
379 const char **profiles = NULL;
380 unsigned n_profiles = 0;
381 const char *active_profile = NULL;
382
383 pa_assert(conn);
384 pa_assert(msg);
385 pa_assert(c);
386
387 idx = c->card->index;
388 if (c->card->module)
389 owner_module = pa_dbusiface_core_get_module_path(c->core, c->card->module);
390 sinks = get_sinks(c, &n_sinks);
391 sources = get_sources(c, &n_sources);
392 profiles = get_profiles(c, &n_profiles);
393 if (c->active_profile)
394 active_profile = pa_dbusiface_card_profile_get_path(pa_hashmap_get(c->profiles, c->active_profile->name));
395
396 pa_assert_se((reply = dbus_message_new_method_return(msg)));
397
398 dbus_message_iter_init_append(reply, &msg_iter);
399 pa_assert_se(dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_ARRAY, "{sv}", &dict_iter));
400
401 pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_INDEX].property_name, DBUS_TYPE_UINT32, &idx);
402 pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_NAME].property_name, DBUS_TYPE_STRING, &c->card->name);
403 pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DRIVER].property_name, DBUS_TYPE_STRING, &c->card->driver);
404
405 if (owner_module)
406 pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_OWNER_MODULE].property_name, DBUS_TYPE_STRING, &owner_module);
407
408 pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SINKS].property_name, DBUS_TYPE_OBJECT_PATH, sinks, n_sinks);
409 pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SOURCES].property_name, DBUS_TYPE_OBJECT_PATH, sources, n_sources);
410 pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_PROFILES].property_name, DBUS_TYPE_OBJECT_PATH, profiles, n_profiles);
411
412 if (active_profile)
413 pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_ACTIVE_PROFILE].property_name, DBUS_TYPE_OBJECT_PATH, &active_profile);
414
415 pa_dbus_append_proplist_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_PROPERTY_LIST].property_name, c->proplist);
416
417 pa_assert_se(dbus_message_iter_close_container(&msg_iter, &dict_iter));
418
419 pa_assert_se(dbus_connection_send(conn, reply, NULL));
420
421 dbus_message_unref(reply);
422
423 pa_xfree(sinks);
424 pa_xfree(sources);
425 pa_xfree(profiles);
426 }
427
428 static void handle_get_profile_by_name(DBusConnection *conn, DBusMessage *msg, void *userdata) {
429 pa_dbusiface_card *c = userdata;
430 DBusError error;
431 const char *profile_name = NULL;
432 pa_dbusiface_card_profile *profile = NULL;
433 const char *profile_path = NULL;
434
435 pa_assert(conn);
436 pa_assert(msg);
437 pa_assert(c);
438
439 dbus_error_init(&error);
440
441 if (!dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &profile_name, DBUS_TYPE_INVALID)) {
442 pa_dbus_send_error(conn, msg, DBUS_ERROR_INVALID_ARGS, "%s", error.message);
443 dbus_error_free(&error);
444 return;
445 }
446
447 if (!(profile = pa_hashmap_get(c->profiles, profile_name))) {
448 pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such profile on card %s.", profile_name, c->card->name);
449 return;
450 }
451
452 profile_path = pa_dbusiface_card_profile_get_path(profile);
453
454 pa_dbus_send_basic_value_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &profile_path);
455 }
456
457 static void subscription_cb(pa_core *core, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
458 pa_dbusiface_card *c = userdata;
459
460 pa_assert(core);
461 pa_assert((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_CARD);
462 pa_assert(c);
463
464 if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_CHANGE) {
465 DBusMessage *signal = NULL;
466
467 if (c->active_profile != c->card->active_profile) {
468 const char *object_path;
469
470 c->active_profile = c->card->active_profile;
471 object_path = pa_dbusiface_card_profile_get_path(pa_hashmap_get(c->profiles, c->active_profile->name));
472
473 pa_assert_se(signal = dbus_message_new_signal(c->path, PA_DBUSIFACE_CARD_INTERFACE, signals[SIGNAL_ACTIVE_PROFILE_UPDATED].name));
474 pa_assert_se(dbus_message_append_args(signal, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID));
475
476 pa_dbus_protocol_send_signal(c->dbus_protocol, signal);
477 dbus_message_unref(signal);
478 signal = NULL;
479 }
480
481 if (!pa_proplist_equal(c->proplist, c->card->proplist)) {
482 DBusMessageIter msg_iter;
483
484 pa_proplist_update(c->proplist, PA_UPDATE_SET, c->card->proplist);
485
486 pa_assert_se(signal = dbus_message_new_signal(c->path, PA_DBUSIFACE_CARD_INTERFACE, signals[SIGNAL_PROPERTY_LIST_UPDATED].name));
487 dbus_message_iter_init_append(signal, &msg_iter);
488 pa_dbus_append_proplist(&msg_iter, c->proplist);
489
490 pa_dbus_protocol_send_signal(c->dbus_protocol, signal);
491 dbus_message_unref(signal);
492 signal = NULL;
493 }
494 }
495 }
496
497 pa_dbusiface_card *pa_dbusiface_card_new(pa_dbusiface_core *core, pa_card *card) {
498 pa_dbusiface_card *c = NULL;
499
500 pa_assert(core);
501 pa_assert(card);
502
503 c = pa_xnew0(pa_dbusiface_card, 1);
504 c->core = core;
505 c->card = card;
506 c->path = pa_sprintf_malloc("%s/%s%u", PA_DBUS_CORE_OBJECT_PATH, OBJECT_NAME, card->index);
507 c->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func);
508 c->next_profile_index = 0;
509 c->active_profile = NULL;
510 c->proplist = pa_proplist_copy(card->proplist);
511 c->dbus_protocol = pa_dbus_protocol_get(card->core);
512 c->subscription = pa_subscription_new(card->core, PA_SUBSCRIPTION_MASK_CARD, subscription_cb, c);
513
514 if (card->profiles) {
515 pa_card_profile *profile;
516 void *state = NULL;
517
518 PA_HASHMAP_FOREACH(profile, card->profiles, state) {
519 pa_dbusiface_card_profile *p = pa_dbusiface_card_profile_new(c, card->core, profile, c->next_profile_index++);
520 pa_hashmap_put(c->profiles, pa_dbusiface_card_profile_get_name(p), p);
521 }
522 pa_assert_se(c->active_profile = card->active_profile);
523 }
524
525 pa_assert_se(pa_dbus_protocol_add_interface(c->dbus_protocol, c->path, &card_interface_info, c) >= 0);
526
527 return c;
528 }
529
530 static void profile_free_cb(void *p, void *userdata) {
531 pa_dbusiface_card_profile *profile = p;
532
533 pa_assert(profile);
534
535 pa_dbusiface_card_profile_free(profile);
536 }
537
538 void pa_dbusiface_card_free(pa_dbusiface_card *c) {
539 pa_assert(c);
540
541 pa_assert_se(pa_dbus_protocol_remove_interface(c->dbus_protocol, c->path, card_interface_info.name) >= 0);
542
543 pa_hashmap_free(c->profiles, profile_free_cb, NULL);
544 pa_proplist_free(c->proplist);
545 pa_dbus_protocol_unref(c->dbus_protocol);
546 pa_subscription_free(c->subscription);
547
548 pa_xfree(c->path);
549 pa_xfree(c);
550 }
551
552 const char *pa_dbusiface_card_get_path(pa_dbusiface_card *c) {
553 pa_assert(c);
554
555 return c->path;
556 }