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 | |
Marc-André Lureau | 29c5c7e | 2023-06-06 15:56:40 +0400 | [diff] [blame] | 32 | #ifdef G_OS_UNIX |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 33 | #include <gio/gunixfdlist.h> |
Marc-André Lureau | 29c5c7e | 2023-06-06 15:56:40 +0400 | [diff] [blame] | 34 | #endif |
| 35 | |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 36 | #include "ui/dbus.h" |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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; |
Marc-André Lureau | e74fec9 | 2022-11-15 16:19:43 +0400 | [diff] [blame] | 50 | bool p2p; |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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); |
Volker Rümelin | 613fe02 | 2022-09-23 20:36:36 +0200 | [diff] [blame] | 90 | *size = audio_rate_get_bytes(&vo->rate, &hw->info, *size); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 | |
Marc-André Lureau | 2e35439 | 2024-07-17 21:15:37 +0400 | [diff] [blame] | 108 | trace_dbus_audio_put_buffer_out(vo->buf_pos, vo->buf_size); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 | |
Marc-André Lureau | e03b568 | 2022-03-23 19:57:17 +0400 | [diff] [blame] | 130 | #if HOST_BIG_ENDIAN |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 | |
Volker Rümelin | 613fe02 | 2022-09-23 20:36:36 +0200 | [diff] [blame] | 351 | /* size = audio_rate_get_bytes(&vo->rate, &hw->info, size); */ |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 * |
Paolo Bonzini | f606173 | 2023-09-22 19:13:44 +0200 | [diff] [blame] | 398 | dbus_audio_init(Audiodev *dev, Error **errp) |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 451 | #ifdef G_OS_UNIX |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 452 | GUnixFDList *fd_list, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 453 | #endif |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 454 | GVariant *arg_listener, |
| 455 | bool out) |
| 456 | { |
| 457 | DBusAudio *da = s->drv_opaque; |
Marc-André Lureau | e74fec9 | 2022-11-15 16:19:43 +0400 | [diff] [blame] | 458 | const char *sender = |
| 459 | da->p2p ? "p2p" : g_dbus_method_invocation_get_sender(invocation); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 | |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 480 | #ifdef G_OS_WIN32 |
| 481 | if (!dbus_win32_import_socket(invocation, arg_listener, &fd)) { |
| 482 | return DBUS_METHOD_INVOCATION_HANDLED; |
| 483 | } |
| 484 | #else |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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 | } |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 494 | #endif |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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); |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 503 | #ifdef G_OS_WIN32 |
| 504 | closesocket(fd); |
| 505 | #else |
| 506 | close(fd); |
| 507 | #endif |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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( |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 513 | da->iface, invocation |
| 514 | #ifdef G_OS_UNIX |
| 515 | , NULL |
| 516 | #endif |
| 517 | ); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 518 | } else { |
| 519 | qemu_dbus_display1_audio_complete_register_in_listener( |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 520 | da->iface, invocation |
| 521 | #ifdef G_OS_UNIX |
| 522 | , NULL |
| 523 | #endif |
| 524 | ); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 602 | #ifdef G_OS_UNIX |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 603 | GUnixFDList *fd_list, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 604 | #endif |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 605 | GVariant *arg_listener) |
| 606 | { |
| 607 | return dbus_audio_register_listener(s, invocation, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 608 | #ifdef G_OS_UNIX |
| 609 | fd_list, |
| 610 | #endif |
| 611 | arg_listener, true); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 612 | |
| 613 | } |
| 614 | |
| 615 | static gboolean |
| 616 | dbus_audio_register_in_listener(AudioState *s, |
| 617 | GDBusMethodInvocation *invocation, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 618 | #ifdef G_OS_UNIX |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 619 | GUnixFDList *fd_list, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 620 | #endif |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 621 | GVariant *arg_listener) |
| 622 | { |
| 623 | return dbus_audio_register_listener(s, invocation, |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 624 | #ifdef G_OS_UNIX |
| 625 | fd_list, |
Marc-André Lureau | 29c5c7e | 2023-06-06 15:56:40 +0400 | [diff] [blame] | 626 | #endif |
Marc-André Lureau | 6cc5a61 | 2023-06-06 15:56:42 +0400 | [diff] [blame] | 627 | arg_listener, false); |
| 628 | } |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 629 | |
| 630 | static void |
Marc-André Lureau | e74fec9 | 2022-11-15 16:19:43 +0400 | [diff] [blame] | 631 | dbus_audio_set_server(AudioState *s, GDBusObjectManagerServer *server, bool p2p) |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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); |
Marc-André Lureau | e74fec9 | 2022-11-15 16:19:43 +0400 | [diff] [blame] | 639 | da->p2p = p2p; |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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); |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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, |
Marc-André Lureau | 739362d | 2021-03-09 17:15:28 +0400 | [diff] [blame] | 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") |