Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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); |
Volker Rümelin | 613fe02 | 2022-09-23 20:36:36 +0200 | [diff] [blame] | 85 | *size = audio_rate_get_bytes(&vo->rate, &hw->info, *size); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 | |
Marc-André Lureau | e03b568 | 2022-03-23 19:57:17 +0400 | [diff] [blame] | 125 | #if HOST_BIG_ENDIAN |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 | |
Volker Rümelin | 613fe02 | 2022-09-23 20:36:36 +0200 | [diff] [blame] | 346 | /* size = audio_rate_get_bytes(&vo->rate, &hw->info, size); */ |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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") |