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