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739362d4 MAL |
1 | /* |
2 | * QEMU DBus audio | |
3 | * | |
4 | * Copyright (c) 2021 Red Hat, Inc. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "qemu/osdep.h" | |
26 | #include "qemu/error-report.h" | |
27 | #include "qemu/host-utils.h" | |
28 | #include "qemu/module.h" | |
29 | #include "qemu/timer.h" | |
30 | #include "qemu/dbus.h" | |
31 | ||
29c5c7e5 | 32 | #ifdef G_OS_UNIX |
739362d4 | 33 | #include <gio/gunixfdlist.h> |
29c5c7e5 MAL |
34 | #endif |
35 | ||
6cc5a615 | 36 | #include "ui/dbus.h" |
739362d4 MAL |
37 | #include "ui/dbus-display1.h" |
38 | ||
39 | #define AUDIO_CAP "dbus" | |
40 | #include "audio.h" | |
41 | #include "audio_int.h" | |
42 | #include "trace.h" | |
43 | ||
44 | #define DBUS_DISPLAY1_AUDIO_PATH DBUS_DISPLAY1_ROOT "/Audio" | |
45 | ||
46 | #define DBUS_AUDIO_NSAMPLES 1024 /* could be configured? */ | |
47 | ||
48 | typedef struct DBusAudio { | |
49 | GDBusObjectManagerServer *server; | |
e74fec9a | 50 | bool p2p; |
739362d4 MAL |
51 | GDBusObjectSkeleton *audio; |
52 | QemuDBusDisplay1Audio *iface; | |
53 | GHashTable *out_listeners; | |
54 | GHashTable *in_listeners; | |
55 | } DBusAudio; | |
56 | ||
57 | typedef struct DBusVoiceOut { | |
58 | HWVoiceOut hw; | |
59 | bool enabled; | |
60 | RateCtl rate; | |
61 | ||
62 | void *buf; | |
63 | size_t buf_pos; | |
64 | size_t buf_size; | |
65 | ||
66 | bool has_volume; | |
67 | Volume volume; | |
68 | } DBusVoiceOut; | |
69 | ||
70 | typedef struct DBusVoiceIn { | |
71 | HWVoiceIn hw; | |
72 | bool enabled; | |
73 | RateCtl rate; | |
74 | ||
75 | bool has_volume; | |
76 | Volume volume; | |
77 | } DBusVoiceIn; | |
78 | ||
79 | static void *dbus_get_buffer_out(HWVoiceOut *hw, size_t *size) | |
80 | { | |
81 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
82 | ||
83 | if (!vo->buf) { | |
84 | vo->buf_size = hw->samples * hw->info.bytes_per_frame; | |
85 | vo->buf = g_malloc(vo->buf_size); | |
86 | vo->buf_pos = 0; | |
87 | } | |
88 | ||
89 | *size = MIN(vo->buf_size - vo->buf_pos, *size); | |
613fe02b | 90 | *size = audio_rate_get_bytes(&vo->rate, &hw->info, *size); |
739362d4 MAL |
91 | |
92 | return vo->buf + vo->buf_pos; | |
93 | ||
94 | } | |
95 | ||
96 | static size_t dbus_put_buffer_out(HWVoiceOut *hw, void *buf, size_t size) | |
97 | { | |
98 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
99 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
100 | GHashTableIter iter; | |
101 | QemuDBusDisplay1AudioOutListener *listener = NULL; | |
102 | g_autoptr(GBytes) bytes = NULL; | |
103 | g_autoptr(GVariant) v_data = NULL; | |
104 | ||
105 | assert(buf == vo->buf + vo->buf_pos && vo->buf_pos + size <= vo->buf_size); | |
106 | vo->buf_pos += size; | |
107 | ||
108 | trace_dbus_audio_put_buffer_out(size); | |
109 | ||
110 | if (vo->buf_pos < vo->buf_size) { | |
111 | return size; | |
112 | } | |
113 | ||
114 | bytes = g_bytes_new_take(g_steal_pointer(&vo->buf), vo->buf_size); | |
115 | v_data = g_variant_new_from_bytes(G_VARIANT_TYPE("ay"), bytes, TRUE); | |
116 | g_variant_ref_sink(v_data); | |
117 | ||
118 | g_hash_table_iter_init(&iter, da->out_listeners); | |
119 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
120 | qemu_dbus_display1_audio_out_listener_call_write( | |
121 | listener, | |
122 | (uintptr_t)hw, | |
123 | v_data, | |
124 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
125 | } | |
126 | ||
127 | return size; | |
128 | } | |
129 | ||
e03b5686 | 130 | #if HOST_BIG_ENDIAN |
739362d4 MAL |
131 | #define AUDIO_HOST_BE TRUE |
132 | #else | |
133 | #define AUDIO_HOST_BE FALSE | |
134 | #endif | |
135 | ||
136 | static void | |
137 | dbus_init_out_listener(QemuDBusDisplay1AudioOutListener *listener, | |
138 | HWVoiceOut *hw) | |
139 | { | |
140 | qemu_dbus_display1_audio_out_listener_call_init( | |
141 | listener, | |
142 | (uintptr_t)hw, | |
143 | hw->info.bits, | |
144 | hw->info.is_signed, | |
145 | hw->info.is_float, | |
146 | hw->info.freq, | |
147 | hw->info.nchannels, | |
148 | hw->info.bytes_per_frame, | |
149 | hw->info.bytes_per_second, | |
150 | hw->info.swap_endianness ? !AUDIO_HOST_BE : AUDIO_HOST_BE, | |
151 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
152 | } | |
153 | ||
154 | static int | |
155 | dbus_init_out(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque) | |
156 | { | |
157 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
158 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
159 | GHashTableIter iter; | |
160 | QemuDBusDisplay1AudioOutListener *listener = NULL; | |
161 | ||
162 | audio_pcm_init_info(&hw->info, as); | |
163 | hw->samples = DBUS_AUDIO_NSAMPLES; | |
164 | audio_rate_start(&vo->rate); | |
165 | ||
166 | g_hash_table_iter_init(&iter, da->out_listeners); | |
167 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
168 | dbus_init_out_listener(listener, hw); | |
169 | } | |
170 | return 0; | |
171 | } | |
172 | ||
173 | static void | |
174 | dbus_fini_out(HWVoiceOut *hw) | |
175 | { | |
176 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
177 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
178 | GHashTableIter iter; | |
179 | QemuDBusDisplay1AudioOutListener *listener = NULL; | |
180 | ||
181 | g_hash_table_iter_init(&iter, da->out_listeners); | |
182 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
183 | qemu_dbus_display1_audio_out_listener_call_fini( | |
184 | listener, | |
185 | (uintptr_t)hw, | |
186 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
187 | } | |
188 | ||
189 | g_clear_pointer(&vo->buf, g_free); | |
190 | } | |
191 | ||
192 | static void | |
193 | dbus_enable_out(HWVoiceOut *hw, bool enable) | |
194 | { | |
195 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
196 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
197 | GHashTableIter iter; | |
198 | QemuDBusDisplay1AudioOutListener *listener = NULL; | |
199 | ||
200 | vo->enabled = enable; | |
201 | if (enable) { | |
202 | audio_rate_start(&vo->rate); | |
203 | } | |
204 | ||
205 | g_hash_table_iter_init(&iter, da->out_listeners); | |
206 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
207 | qemu_dbus_display1_audio_out_listener_call_set_enabled( | |
208 | listener, (uintptr_t)hw, enable, | |
209 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
210 | } | |
211 | } | |
212 | ||
213 | static void | |
214 | dbus_volume_out_listener(HWVoiceOut *hw, | |
215 | QemuDBusDisplay1AudioOutListener *listener) | |
216 | { | |
217 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
218 | Volume *vol = &vo->volume; | |
219 | g_autoptr(GBytes) bytes = NULL; | |
220 | GVariant *v_vol = NULL; | |
221 | ||
222 | if (!vo->has_volume) { | |
223 | return; | |
224 | } | |
225 | ||
226 | assert(vol->channels < sizeof(vol->vol)); | |
227 | bytes = g_bytes_new(vol->vol, vol->channels); | |
228 | v_vol = g_variant_new_from_bytes(G_VARIANT_TYPE("ay"), bytes, TRUE); | |
229 | qemu_dbus_display1_audio_out_listener_call_set_volume( | |
230 | listener, (uintptr_t)hw, vol->mute, v_vol, | |
231 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
232 | } | |
233 | ||
234 | static void | |
235 | dbus_volume_out(HWVoiceOut *hw, Volume *vol) | |
236 | { | |
237 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
238 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
239 | GHashTableIter iter; | |
240 | QemuDBusDisplay1AudioOutListener *listener = NULL; | |
241 | ||
242 | vo->has_volume = true; | |
243 | vo->volume = *vol; | |
244 | ||
245 | g_hash_table_iter_init(&iter, da->out_listeners); | |
246 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
247 | dbus_volume_out_listener(hw, listener); | |
248 | } | |
249 | } | |
250 | ||
251 | static void | |
252 | dbus_init_in_listener(QemuDBusDisplay1AudioInListener *listener, HWVoiceIn *hw) | |
253 | { | |
254 | qemu_dbus_display1_audio_in_listener_call_init( | |
255 | listener, | |
256 | (uintptr_t)hw, | |
257 | hw->info.bits, | |
258 | hw->info.is_signed, | |
259 | hw->info.is_float, | |
260 | hw->info.freq, | |
261 | hw->info.nchannels, | |
262 | hw->info.bytes_per_frame, | |
263 | hw->info.bytes_per_second, | |
264 | hw->info.swap_endianness ? !AUDIO_HOST_BE : AUDIO_HOST_BE, | |
265 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
266 | } | |
267 | ||
268 | static int | |
269 | dbus_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) | |
270 | { | |
271 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
272 | DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw); | |
273 | GHashTableIter iter; | |
274 | QemuDBusDisplay1AudioInListener *listener = NULL; | |
275 | ||
276 | audio_pcm_init_info(&hw->info, as); | |
277 | hw->samples = DBUS_AUDIO_NSAMPLES; | |
278 | audio_rate_start(&vo->rate); | |
279 | ||
280 | g_hash_table_iter_init(&iter, da->in_listeners); | |
281 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
282 | dbus_init_in_listener(listener, hw); | |
283 | } | |
284 | return 0; | |
285 | } | |
286 | ||
287 | static void | |
288 | dbus_fini_in(HWVoiceIn *hw) | |
289 | { | |
290 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
291 | GHashTableIter iter; | |
292 | QemuDBusDisplay1AudioInListener *listener = NULL; | |
293 | ||
294 | g_hash_table_iter_init(&iter, da->in_listeners); | |
295 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
296 | qemu_dbus_display1_audio_in_listener_call_fini( | |
297 | listener, | |
298 | (uintptr_t)hw, | |
299 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
300 | } | |
301 | } | |
302 | ||
303 | static void | |
304 | dbus_volume_in_listener(HWVoiceIn *hw, | |
305 | QemuDBusDisplay1AudioInListener *listener) | |
306 | { | |
307 | DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw); | |
308 | Volume *vol = &vo->volume; | |
309 | g_autoptr(GBytes) bytes = NULL; | |
310 | GVariant *v_vol = NULL; | |
311 | ||
312 | if (!vo->has_volume) { | |
313 | return; | |
314 | } | |
315 | ||
316 | assert(vol->channels < sizeof(vol->vol)); | |
317 | bytes = g_bytes_new(vol->vol, vol->channels); | |
318 | v_vol = g_variant_new_from_bytes(G_VARIANT_TYPE("ay"), bytes, TRUE); | |
319 | qemu_dbus_display1_audio_in_listener_call_set_volume( | |
320 | listener, (uintptr_t)hw, vol->mute, v_vol, | |
321 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
322 | } | |
323 | ||
324 | static void | |
325 | dbus_volume_in(HWVoiceIn *hw, Volume *vol) | |
326 | { | |
327 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
328 | DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw); | |
329 | GHashTableIter iter; | |
330 | QemuDBusDisplay1AudioInListener *listener = NULL; | |
331 | ||
332 | vo->has_volume = true; | |
333 | vo->volume = *vol; | |
334 | ||
335 | g_hash_table_iter_init(&iter, da->in_listeners); | |
336 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
337 | dbus_volume_in_listener(hw, listener); | |
338 | } | |
339 | } | |
340 | ||
341 | static size_t | |
342 | dbus_read(HWVoiceIn *hw, void *buf, size_t size) | |
343 | { | |
344 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
345 | /* DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw); */ | |
346 | GHashTableIter iter; | |
347 | QemuDBusDisplay1AudioInListener *listener = NULL; | |
348 | ||
349 | trace_dbus_audio_read(size); | |
350 | ||
613fe02b | 351 | /* size = audio_rate_get_bytes(&vo->rate, &hw->info, size); */ |
739362d4 MAL |
352 | |
353 | g_hash_table_iter_init(&iter, da->in_listeners); | |
354 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
355 | g_autoptr(GVariant) v_data = NULL; | |
356 | const char *data; | |
357 | gsize n = 0; | |
358 | ||
359 | if (qemu_dbus_display1_audio_in_listener_call_read_sync( | |
360 | listener, | |
361 | (uintptr_t)hw, | |
362 | size, | |
363 | G_DBUS_CALL_FLAGS_NONE, -1, | |
364 | &v_data, NULL, NULL)) { | |
365 | data = g_variant_get_fixed_array(v_data, &n, 1); | |
366 | g_warn_if_fail(n <= size); | |
367 | size = MIN(n, size); | |
368 | memcpy(buf, data, size); | |
369 | break; | |
370 | } | |
371 | } | |
372 | ||
373 | return size; | |
374 | } | |
375 | ||
376 | static void | |
377 | dbus_enable_in(HWVoiceIn *hw, bool enable) | |
378 | { | |
379 | DBusAudio *da = (DBusAudio *)hw->s->drv_opaque; | |
380 | DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw); | |
381 | GHashTableIter iter; | |
382 | QemuDBusDisplay1AudioInListener *listener = NULL; | |
383 | ||
384 | vo->enabled = enable; | |
385 | if (enable) { | |
386 | audio_rate_start(&vo->rate); | |
387 | } | |
388 | ||
389 | g_hash_table_iter_init(&iter, da->in_listeners); | |
390 | while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) { | |
391 | qemu_dbus_display1_audio_in_listener_call_set_enabled( | |
392 | listener, (uintptr_t)hw, enable, | |
393 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
394 | } | |
395 | } | |
396 | ||
397 | static void * | |
f6061733 | 398 | dbus_audio_init(Audiodev *dev, Error **errp) |
739362d4 MAL |
399 | { |
400 | DBusAudio *da = g_new0(DBusAudio, 1); | |
401 | ||
402 | da->out_listeners = g_hash_table_new_full(g_str_hash, g_str_equal, | |
403 | g_free, g_object_unref); | |
404 | da->in_listeners = g_hash_table_new_full(g_str_hash, g_str_equal, | |
405 | g_free, g_object_unref); | |
406 | return da; | |
407 | } | |
408 | ||
409 | static void | |
410 | dbus_audio_fini(void *opaque) | |
411 | { | |
412 | DBusAudio *da = opaque; | |
413 | ||
414 | if (da->server) { | |
415 | g_dbus_object_manager_server_unexport(da->server, | |
416 | DBUS_DISPLAY1_AUDIO_PATH); | |
417 | } | |
418 | g_clear_object(&da->audio); | |
419 | g_clear_object(&da->iface); | |
420 | g_clear_pointer(&da->in_listeners, g_hash_table_unref); | |
421 | g_clear_pointer(&da->out_listeners, g_hash_table_unref); | |
422 | g_clear_object(&da->server); | |
423 | g_free(da); | |
424 | } | |
425 | ||
426 | static void | |
427 | listener_out_vanished_cb(GDBusConnection *connection, | |
428 | gboolean remote_peer_vanished, | |
429 | GError *error, | |
430 | DBusAudio *da) | |
431 | { | |
432 | char *name = g_object_get_data(G_OBJECT(connection), "name"); | |
433 | ||
434 | g_hash_table_remove(da->out_listeners, name); | |
435 | } | |
436 | ||
437 | static void | |
438 | listener_in_vanished_cb(GDBusConnection *connection, | |
439 | gboolean remote_peer_vanished, | |
440 | GError *error, | |
441 | DBusAudio *da) | |
442 | { | |
443 | char *name = g_object_get_data(G_OBJECT(connection), "name"); | |
444 | ||
445 | g_hash_table_remove(da->in_listeners, name); | |
446 | } | |
447 | ||
448 | static gboolean | |
449 | dbus_audio_register_listener(AudioState *s, | |
450 | GDBusMethodInvocation *invocation, | |
6cc5a615 | 451 | #ifdef G_OS_UNIX |
739362d4 | 452 | GUnixFDList *fd_list, |
6cc5a615 | 453 | #endif |
739362d4 MAL |
454 | GVariant *arg_listener, |
455 | bool out) | |
456 | { | |
457 | DBusAudio *da = s->drv_opaque; | |
e74fec9a MAL |
458 | const char *sender = |
459 | da->p2p ? "p2p" : g_dbus_method_invocation_get_sender(invocation); | |
739362d4 MAL |
460 | g_autoptr(GDBusConnection) listener_conn = NULL; |
461 | g_autoptr(GError) err = NULL; | |
462 | g_autoptr(GSocket) socket = NULL; | |
463 | g_autoptr(GSocketConnection) socket_conn = NULL; | |
464 | g_autofree char *guid = g_dbus_generate_guid(); | |
465 | GHashTable *listeners = out ? da->out_listeners : da->in_listeners; | |
466 | GObject *listener; | |
467 | int fd; | |
468 | ||
469 | trace_dbus_audio_register(sender, out ? "out" : "in"); | |
470 | ||
471 | if (g_hash_table_contains(listeners, sender)) { | |
472 | g_dbus_method_invocation_return_error(invocation, | |
473 | DBUS_DISPLAY_ERROR, | |
474 | DBUS_DISPLAY_ERROR_INVALID, | |
475 | "`%s` is already registered!", | |
476 | sender); | |
477 | return DBUS_METHOD_INVOCATION_HANDLED; | |
478 | } | |
479 | ||
6cc5a615 MAL |
480 | #ifdef G_OS_WIN32 |
481 | if (!dbus_win32_import_socket(invocation, arg_listener, &fd)) { | |
482 | return DBUS_METHOD_INVOCATION_HANDLED; | |
483 | } | |
484 | #else | |
739362d4 MAL |
485 | fd = g_unix_fd_list_get(fd_list, g_variant_get_handle(arg_listener), &err); |
486 | if (err) { | |
487 | g_dbus_method_invocation_return_error(invocation, | |
488 | DBUS_DISPLAY_ERROR, | |
489 | DBUS_DISPLAY_ERROR_FAILED, | |
490 | "Couldn't get peer fd: %s", | |
491 | err->message); | |
492 | return DBUS_METHOD_INVOCATION_HANDLED; | |
493 | } | |
6cc5a615 | 494 | #endif |
739362d4 MAL |
495 | |
496 | socket = g_socket_new_from_fd(fd, &err); | |
497 | if (err) { | |
498 | g_dbus_method_invocation_return_error(invocation, | |
499 | DBUS_DISPLAY_ERROR, | |
500 | DBUS_DISPLAY_ERROR_FAILED, | |
501 | "Couldn't make a socket: %s", | |
502 | err->message); | |
6cc5a615 MAL |
503 | #ifdef G_OS_WIN32 |
504 | closesocket(fd); | |
505 | #else | |
506 | close(fd); | |
507 | #endif | |
739362d4 MAL |
508 | return DBUS_METHOD_INVOCATION_HANDLED; |
509 | } | |
510 | socket_conn = g_socket_connection_factory_create_connection(socket); | |
511 | if (out) { | |
512 | qemu_dbus_display1_audio_complete_register_out_listener( | |
6cc5a615 MAL |
513 | da->iface, invocation |
514 | #ifdef G_OS_UNIX | |
515 | , NULL | |
516 | #endif | |
517 | ); | |
739362d4 MAL |
518 | } else { |
519 | qemu_dbus_display1_audio_complete_register_in_listener( | |
6cc5a615 MAL |
520 | da->iface, invocation |
521 | #ifdef G_OS_UNIX | |
522 | , NULL | |
523 | #endif | |
524 | ); | |
739362d4 MAL |
525 | } |
526 | ||
527 | listener_conn = | |
528 | g_dbus_connection_new_sync( | |
529 | G_IO_STREAM(socket_conn), | |
530 | guid, | |
531 | G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER, | |
532 | NULL, NULL, &err); | |
533 | if (err) { | |
534 | error_report("Failed to setup peer connection: %s", err->message); | |
535 | return DBUS_METHOD_INVOCATION_HANDLED; | |
536 | } | |
537 | ||
538 | listener = out ? | |
539 | G_OBJECT(qemu_dbus_display1_audio_out_listener_proxy_new_sync( | |
540 | listener_conn, | |
541 | G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START, | |
542 | NULL, | |
543 | "/org/qemu/Display1/AudioOutListener", | |
544 | NULL, | |
545 | &err)) : | |
546 | G_OBJECT(qemu_dbus_display1_audio_in_listener_proxy_new_sync( | |
547 | listener_conn, | |
548 | G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START, | |
549 | NULL, | |
550 | "/org/qemu/Display1/AudioInListener", | |
551 | NULL, | |
552 | &err)); | |
553 | if (!listener) { | |
554 | error_report("Failed to setup proxy: %s", err->message); | |
555 | return DBUS_METHOD_INVOCATION_HANDLED; | |
556 | } | |
557 | ||
558 | if (out) { | |
559 | HWVoiceOut *hw; | |
560 | ||
561 | QLIST_FOREACH(hw, &s->hw_head_out, entries) { | |
562 | DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw); | |
563 | QemuDBusDisplay1AudioOutListener *l = | |
564 | QEMU_DBUS_DISPLAY1_AUDIO_OUT_LISTENER(listener); | |
565 | ||
566 | dbus_init_out_listener(l, hw); | |
567 | qemu_dbus_display1_audio_out_listener_call_set_enabled( | |
568 | l, (uintptr_t)hw, vo->enabled, | |
569 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
570 | } | |
571 | } else { | |
572 | HWVoiceIn *hw; | |
573 | ||
574 | QLIST_FOREACH(hw, &s->hw_head_in, entries) { | |
575 | DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw); | |
576 | QemuDBusDisplay1AudioInListener *l = | |
577 | QEMU_DBUS_DISPLAY1_AUDIO_IN_LISTENER(listener); | |
578 | ||
579 | dbus_init_in_listener( | |
580 | QEMU_DBUS_DISPLAY1_AUDIO_IN_LISTENER(listener), hw); | |
581 | qemu_dbus_display1_audio_in_listener_call_set_enabled( | |
582 | l, (uintptr_t)hw, vo->enabled, | |
583 | G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL); | |
584 | } | |
585 | } | |
586 | ||
587 | g_object_set_data_full(G_OBJECT(listener_conn), "name", | |
588 | g_strdup(sender), g_free); | |
589 | g_hash_table_insert(listeners, g_strdup(sender), listener); | |
590 | g_object_connect(listener_conn, | |
591 | "signal::closed", | |
592 | out ? listener_out_vanished_cb : listener_in_vanished_cb, | |
593 | da, | |
594 | NULL); | |
595 | ||
596 | return DBUS_METHOD_INVOCATION_HANDLED; | |
597 | } | |
598 | ||
599 | static gboolean | |
600 | dbus_audio_register_out_listener(AudioState *s, | |
601 | GDBusMethodInvocation *invocation, | |
6cc5a615 | 602 | #ifdef G_OS_UNIX |
739362d4 | 603 | GUnixFDList *fd_list, |
6cc5a615 | 604 | #endif |
739362d4 MAL |
605 | GVariant *arg_listener) |
606 | { | |
607 | return dbus_audio_register_listener(s, invocation, | |
6cc5a615 MAL |
608 | #ifdef G_OS_UNIX |
609 | fd_list, | |
610 | #endif | |
611 | arg_listener, true); | |
739362d4 MAL |
612 | |
613 | } | |
614 | ||
615 | static gboolean | |
616 | dbus_audio_register_in_listener(AudioState *s, | |
617 | GDBusMethodInvocation *invocation, | |
6cc5a615 | 618 | #ifdef G_OS_UNIX |
739362d4 | 619 | GUnixFDList *fd_list, |
6cc5a615 | 620 | #endif |
739362d4 MAL |
621 | GVariant *arg_listener) |
622 | { | |
623 | return dbus_audio_register_listener(s, invocation, | |
6cc5a615 MAL |
624 | #ifdef G_OS_UNIX |
625 | fd_list, | |
29c5c7e5 | 626 | #endif |
6cc5a615 MAL |
627 | arg_listener, false); |
628 | } | |
739362d4 MAL |
629 | |
630 | static void | |
e74fec9a | 631 | dbus_audio_set_server(AudioState *s, GDBusObjectManagerServer *server, bool p2p) |
739362d4 MAL |
632 | { |
633 | DBusAudio *da = s->drv_opaque; | |
634 | ||
635 | g_assert(da); | |
636 | g_assert(!da->server); | |
637 | ||
638 | da->server = g_object_ref(server); | |
e74fec9a | 639 | da->p2p = p2p; |
739362d4 MAL |
640 | |
641 | da->audio = g_dbus_object_skeleton_new(DBUS_DISPLAY1_AUDIO_PATH); | |
642 | da->iface = qemu_dbus_display1_audio_skeleton_new(); | |
643 | g_object_connect(da->iface, | |
644 | "swapped-signal::handle-register-in-listener", | |
645 | dbus_audio_register_in_listener, s, | |
646 | "swapped-signal::handle-register-out-listener", | |
647 | dbus_audio_register_out_listener, s, | |
648 | NULL); | |
649 | ||
650 | g_dbus_object_skeleton_add_interface(G_DBUS_OBJECT_SKELETON(da->audio), | |
651 | G_DBUS_INTERFACE_SKELETON(da->iface)); | |
652 | g_dbus_object_manager_server_export(da->server, da->audio); | |
653 | } | |
654 | ||
655 | static struct audio_pcm_ops dbus_pcm_ops = { | |
656 | .init_out = dbus_init_out, | |
657 | .fini_out = dbus_fini_out, | |
658 | .write = audio_generic_write, | |
659 | .get_buffer_out = dbus_get_buffer_out, | |
660 | .put_buffer_out = dbus_put_buffer_out, | |
661 | .enable_out = dbus_enable_out, | |
662 | .volume_out = dbus_volume_out, | |
663 | ||
664 | .init_in = dbus_init_in, | |
665 | .fini_in = dbus_fini_in, | |
666 | .read = dbus_read, | |
667 | .run_buffer_in = audio_generic_run_buffer_in, | |
668 | .enable_in = dbus_enable_in, | |
669 | .volume_in = dbus_volume_in, | |
670 | }; | |
671 | ||
672 | static struct audio_driver dbus_audio_driver = { | |
673 | .name = "dbus", | |
674 | .descr = "Timer based audio exposed with DBus interface", | |
675 | .init = dbus_audio_init, | |
676 | .fini = dbus_audio_fini, | |
677 | .set_dbus_server = dbus_audio_set_server, | |
678 | .pcm_ops = &dbus_pcm_ops, | |
739362d4 MAL |
679 | .max_voices_out = INT_MAX, |
680 | .max_voices_in = INT_MAX, | |
681 | .voice_size_out = sizeof(DBusVoiceOut), | |
682 | .voice_size_in = sizeof(DBusVoiceIn) | |
683 | }; | |
684 | ||
685 | static void register_audio_dbus(void) | |
686 | { | |
687 | audio_driver_register(&dbus_audio_driver); | |
688 | } | |
689 | type_init(register_audio_dbus); | |
690 | ||
691 | module_dep("ui-dbus") |