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