mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-09-06 18:05:37 +00:00
655 lines
20 KiB
C
655 lines
20 KiB
C
![]() |
/*
|
||
|
* QEMU DBus audio
|
||
|
*
|
||
|
* Copyright (c) 2021 Red Hat, Inc.
|
||
|
*
|
||
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
* in the Software without restriction, including without limitation the rights
|
||
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
* furnished to do so, subject to the following conditions:
|
||
|
*
|
||
|
* The above copyright notice and this permission notice shall be included in
|
||
|
* all copies or substantial portions of the Software.
|
||
|
*
|
||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
* THE SOFTWARE.
|
||
|
*/
|
||
|
|
||
|
#include "qemu/osdep.h"
|
||
|
#include "qemu/error-report.h"
|
||
|
#include "qemu/host-utils.h"
|
||
|
#include "qemu/module.h"
|
||
|
#include "qemu/timer.h"
|
||
|
#include "qemu/dbus.h"
|
||
|
|
||
|
#include <gio/gunixfdlist.h>
|
||
|
#include "ui/dbus-display1.h"
|
||
|
|
||
|
#define AUDIO_CAP "dbus"
|
||
|
#include "audio.h"
|
||
|
#include "audio_int.h"
|
||
|
#include "trace.h"
|
||
|
|
||
|
#define DBUS_DISPLAY1_AUDIO_PATH DBUS_DISPLAY1_ROOT "/Audio"
|
||
|
|
||
|
#define DBUS_AUDIO_NSAMPLES 1024 /* could be configured? */
|
||
|
|
||
|
typedef struct DBusAudio {
|
||
|
GDBusObjectManagerServer *server;
|
||
|
GDBusObjectSkeleton *audio;
|
||
|
QemuDBusDisplay1Audio *iface;
|
||
|
GHashTable *out_listeners;
|
||
|
GHashTable *in_listeners;
|
||
|
} DBusAudio;
|
||
|
|
||
|
typedef struct DBusVoiceOut {
|
||
|
HWVoiceOut hw;
|
||
|
bool enabled;
|
||
|
RateCtl rate;
|
||
|
|
||
|
void *buf;
|
||
|
size_t buf_pos;
|
||
|
size_t buf_size;
|
||
|
|
||
|
bool has_volume;
|
||
|
Volume volume;
|
||
|
} DBusVoiceOut;
|
||
|
|
||
|
typedef struct DBusVoiceIn {
|
||
|
HWVoiceIn hw;
|
||
|
bool enabled;
|
||
|
RateCtl rate;
|
||
|
|
||
|
bool has_volume;
|
||
|
Volume volume;
|
||
|
} DBusVoiceIn;
|
||
|
|
||
|
static void *dbus_get_buffer_out(HWVoiceOut *hw, size_t *size)
|
||
|
{
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
|
||
|
if (!vo->buf) {
|
||
|
vo->buf_size = hw->samples * hw->info.bytes_per_frame;
|
||
|
vo->buf = g_malloc(vo->buf_size);
|
||
|
vo->buf_pos = 0;
|
||
|
}
|
||
|
|
||
|
*size = MIN(vo->buf_size - vo->buf_pos, *size);
|
||
|
*size = audio_rate_get_bytes(&hw->info, &vo->rate, *size);
|
||
|
|
||
|
return vo->buf + vo->buf_pos;
|
||
|
|
||
|
}
|
||
|
|
||
|
static size_t dbus_put_buffer_out(HWVoiceOut *hw, void *buf, size_t size)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioOutListener *listener = NULL;
|
||
|
g_autoptr(GBytes) bytes = NULL;
|
||
|
g_autoptr(GVariant) v_data = NULL;
|
||
|
|
||
|
assert(buf == vo->buf + vo->buf_pos && vo->buf_pos + size <= vo->buf_size);
|
||
|
vo->buf_pos += size;
|
||
|
|
||
|
trace_dbus_audio_put_buffer_out(size);
|
||
|
|
||
|
if (vo->buf_pos < vo->buf_size) {
|
||
|
return size;
|
||
|
}
|
||
|
|
||
|
bytes = g_bytes_new_take(g_steal_pointer(&vo->buf), vo->buf_size);
|
||
|
v_data = g_variant_new_from_bytes(G_VARIANT_TYPE("ay"), bytes, TRUE);
|
||
|
g_variant_ref_sink(v_data);
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->out_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
qemu_dbus_display1_audio_out_listener_call_write(
|
||
|
listener,
|
||
|
(uintptr_t)hw,
|
||
|
v_data,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
return size;
|
||
|
}
|
||
|
|
||
|
#ifdef HOST_WORDS_BIGENDIAN
|
||
|
#define AUDIO_HOST_BE TRUE
|
||
|
#else
|
||
|
#define AUDIO_HOST_BE FALSE
|
||
|
#endif
|
||
|
|
||
|
static void
|
||
|
dbus_init_out_listener(QemuDBusDisplay1AudioOutListener *listener,
|
||
|
HWVoiceOut *hw)
|
||
|
{
|
||
|
qemu_dbus_display1_audio_out_listener_call_init(
|
||
|
listener,
|
||
|
(uintptr_t)hw,
|
||
|
hw->info.bits,
|
||
|
hw->info.is_signed,
|
||
|
hw->info.is_float,
|
||
|
hw->info.freq,
|
||
|
hw->info.nchannels,
|
||
|
hw->info.bytes_per_frame,
|
||
|
hw->info.bytes_per_second,
|
||
|
hw->info.swap_endianness ? !AUDIO_HOST_BE : AUDIO_HOST_BE,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
dbus_init_out(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioOutListener *listener = NULL;
|
||
|
|
||
|
audio_pcm_init_info(&hw->info, as);
|
||
|
hw->samples = DBUS_AUDIO_NSAMPLES;
|
||
|
audio_rate_start(&vo->rate);
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->out_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
dbus_init_out_listener(listener, hw);
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_fini_out(HWVoiceOut *hw)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioOutListener *listener = NULL;
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->out_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
qemu_dbus_display1_audio_out_listener_call_fini(
|
||
|
listener,
|
||
|
(uintptr_t)hw,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
g_clear_pointer(&vo->buf, g_free);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_enable_out(HWVoiceOut *hw, bool enable)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioOutListener *listener = NULL;
|
||
|
|
||
|
vo->enabled = enable;
|
||
|
if (enable) {
|
||
|
audio_rate_start(&vo->rate);
|
||
|
}
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->out_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
qemu_dbus_display1_audio_out_listener_call_set_enabled(
|
||
|
listener, (uintptr_t)hw, enable,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_volume_out_listener(HWVoiceOut *hw,
|
||
|
QemuDBusDisplay1AudioOutListener *listener)
|
||
|
{
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
Volume *vol = &vo->volume;
|
||
|
g_autoptr(GBytes) bytes = NULL;
|
||
|
GVariant *v_vol = NULL;
|
||
|
|
||
|
if (!vo->has_volume) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
assert(vol->channels < sizeof(vol->vol));
|
||
|
bytes = g_bytes_new(vol->vol, vol->channels);
|
||
|
v_vol = g_variant_new_from_bytes(G_VARIANT_TYPE("ay"), bytes, TRUE);
|
||
|
qemu_dbus_display1_audio_out_listener_call_set_volume(
|
||
|
listener, (uintptr_t)hw, vol->mute, v_vol,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_volume_out(HWVoiceOut *hw, Volume *vol)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioOutListener *listener = NULL;
|
||
|
|
||
|
vo->has_volume = true;
|
||
|
vo->volume = *vol;
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->out_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
dbus_volume_out_listener(hw, listener);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_init_in_listener(QemuDBusDisplay1AudioInListener *listener, HWVoiceIn *hw)
|
||
|
{
|
||
|
qemu_dbus_display1_audio_in_listener_call_init(
|
||
|
listener,
|
||
|
(uintptr_t)hw,
|
||
|
hw->info.bits,
|
||
|
hw->info.is_signed,
|
||
|
hw->info.is_float,
|
||
|
hw->info.freq,
|
||
|
hw->info.nchannels,
|
||
|
hw->info.bytes_per_frame,
|
||
|
hw->info.bytes_per_second,
|
||
|
hw->info.swap_endianness ? !AUDIO_HOST_BE : AUDIO_HOST_BE,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
static int
|
||
|
dbus_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioInListener *listener = NULL;
|
||
|
|
||
|
audio_pcm_init_info(&hw->info, as);
|
||
|
hw->samples = DBUS_AUDIO_NSAMPLES;
|
||
|
audio_rate_start(&vo->rate);
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->in_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
dbus_init_in_listener(listener, hw);
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_fini_in(HWVoiceIn *hw)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioInListener *listener = NULL;
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->in_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
qemu_dbus_display1_audio_in_listener_call_fini(
|
||
|
listener,
|
||
|
(uintptr_t)hw,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_volume_in_listener(HWVoiceIn *hw,
|
||
|
QemuDBusDisplay1AudioInListener *listener)
|
||
|
{
|
||
|
DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw);
|
||
|
Volume *vol = &vo->volume;
|
||
|
g_autoptr(GBytes) bytes = NULL;
|
||
|
GVariant *v_vol = NULL;
|
||
|
|
||
|
if (!vo->has_volume) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
assert(vol->channels < sizeof(vol->vol));
|
||
|
bytes = g_bytes_new(vol->vol, vol->channels);
|
||
|
v_vol = g_variant_new_from_bytes(G_VARIANT_TYPE("ay"), bytes, TRUE);
|
||
|
qemu_dbus_display1_audio_in_listener_call_set_volume(
|
||
|
listener, (uintptr_t)hw, vol->mute, v_vol,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_volume_in(HWVoiceIn *hw, Volume *vol)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioInListener *listener = NULL;
|
||
|
|
||
|
vo->has_volume = true;
|
||
|
vo->volume = *vol;
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->in_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
dbus_volume_in_listener(hw, listener);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static size_t
|
||
|
dbus_read(HWVoiceIn *hw, void *buf, size_t size)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
/* DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw); */
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioInListener *listener = NULL;
|
||
|
|
||
|
trace_dbus_audio_read(size);
|
||
|
|
||
|
/* size = audio_rate_get_bytes(&hw->info, &vo->rate, size); */
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->in_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
g_autoptr(GVariant) v_data = NULL;
|
||
|
const char *data;
|
||
|
gsize n = 0;
|
||
|
|
||
|
if (qemu_dbus_display1_audio_in_listener_call_read_sync(
|
||
|
listener,
|
||
|
(uintptr_t)hw,
|
||
|
size,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1,
|
||
|
&v_data, NULL, NULL)) {
|
||
|
data = g_variant_get_fixed_array(v_data, &n, 1);
|
||
|
g_warn_if_fail(n <= size);
|
||
|
size = MIN(n, size);
|
||
|
memcpy(buf, data, size);
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return size;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_enable_in(HWVoiceIn *hw, bool enable)
|
||
|
{
|
||
|
DBusAudio *da = (DBusAudio *)hw->s->drv_opaque;
|
||
|
DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw);
|
||
|
GHashTableIter iter;
|
||
|
QemuDBusDisplay1AudioInListener *listener = NULL;
|
||
|
|
||
|
vo->enabled = enable;
|
||
|
if (enable) {
|
||
|
audio_rate_start(&vo->rate);
|
||
|
}
|
||
|
|
||
|
g_hash_table_iter_init(&iter, da->in_listeners);
|
||
|
while (g_hash_table_iter_next(&iter, NULL, (void **)&listener)) {
|
||
|
qemu_dbus_display1_audio_in_listener_call_set_enabled(
|
||
|
listener, (uintptr_t)hw, enable,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void *
|
||
|
dbus_audio_init(Audiodev *dev)
|
||
|
{
|
||
|
DBusAudio *da = g_new0(DBusAudio, 1);
|
||
|
|
||
|
da->out_listeners = g_hash_table_new_full(g_str_hash, g_str_equal,
|
||
|
g_free, g_object_unref);
|
||
|
da->in_listeners = g_hash_table_new_full(g_str_hash, g_str_equal,
|
||
|
g_free, g_object_unref);
|
||
|
return da;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_audio_fini(void *opaque)
|
||
|
{
|
||
|
DBusAudio *da = opaque;
|
||
|
|
||
|
if (da->server) {
|
||
|
g_dbus_object_manager_server_unexport(da->server,
|
||
|
DBUS_DISPLAY1_AUDIO_PATH);
|
||
|
}
|
||
|
g_clear_object(&da->audio);
|
||
|
g_clear_object(&da->iface);
|
||
|
g_clear_pointer(&da->in_listeners, g_hash_table_unref);
|
||
|
g_clear_pointer(&da->out_listeners, g_hash_table_unref);
|
||
|
g_clear_object(&da->server);
|
||
|
g_free(da);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
listener_out_vanished_cb(GDBusConnection *connection,
|
||
|
gboolean remote_peer_vanished,
|
||
|
GError *error,
|
||
|
DBusAudio *da)
|
||
|
{
|
||
|
char *name = g_object_get_data(G_OBJECT(connection), "name");
|
||
|
|
||
|
g_hash_table_remove(da->out_listeners, name);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
listener_in_vanished_cb(GDBusConnection *connection,
|
||
|
gboolean remote_peer_vanished,
|
||
|
GError *error,
|
||
|
DBusAudio *da)
|
||
|
{
|
||
|
char *name = g_object_get_data(G_OBJECT(connection), "name");
|
||
|
|
||
|
g_hash_table_remove(da->in_listeners, name);
|
||
|
}
|
||
|
|
||
|
static gboolean
|
||
|
dbus_audio_register_listener(AudioState *s,
|
||
|
GDBusMethodInvocation *invocation,
|
||
|
GUnixFDList *fd_list,
|
||
|
GVariant *arg_listener,
|
||
|
bool out)
|
||
|
{
|
||
|
DBusAudio *da = s->drv_opaque;
|
||
|
const char *sender = g_dbus_method_invocation_get_sender(invocation);
|
||
|
g_autoptr(GDBusConnection) listener_conn = NULL;
|
||
|
g_autoptr(GError) err = NULL;
|
||
|
g_autoptr(GSocket) socket = NULL;
|
||
|
g_autoptr(GSocketConnection) socket_conn = NULL;
|
||
|
g_autofree char *guid = g_dbus_generate_guid();
|
||
|
GHashTable *listeners = out ? da->out_listeners : da->in_listeners;
|
||
|
GObject *listener;
|
||
|
int fd;
|
||
|
|
||
|
trace_dbus_audio_register(sender, out ? "out" : "in");
|
||
|
|
||
|
if (g_hash_table_contains(listeners, sender)) {
|
||
|
g_dbus_method_invocation_return_error(invocation,
|
||
|
DBUS_DISPLAY_ERROR,
|
||
|
DBUS_DISPLAY_ERROR_INVALID,
|
||
|
"`%s` is already registered!",
|
||
|
sender);
|
||
|
return DBUS_METHOD_INVOCATION_HANDLED;
|
||
|
}
|
||
|
|
||
|
fd = g_unix_fd_list_get(fd_list, g_variant_get_handle(arg_listener), &err);
|
||
|
if (err) {
|
||
|
g_dbus_method_invocation_return_error(invocation,
|
||
|
DBUS_DISPLAY_ERROR,
|
||
|
DBUS_DISPLAY_ERROR_FAILED,
|
||
|
"Couldn't get peer fd: %s",
|
||
|
err->message);
|
||
|
return DBUS_METHOD_INVOCATION_HANDLED;
|
||
|
}
|
||
|
|
||
|
socket = g_socket_new_from_fd(fd, &err);
|
||
|
if (err) {
|
||
|
g_dbus_method_invocation_return_error(invocation,
|
||
|
DBUS_DISPLAY_ERROR,
|
||
|
DBUS_DISPLAY_ERROR_FAILED,
|
||
|
"Couldn't make a socket: %s",
|
||
|
err->message);
|
||
|
return DBUS_METHOD_INVOCATION_HANDLED;
|
||
|
}
|
||
|
socket_conn = g_socket_connection_factory_create_connection(socket);
|
||
|
if (out) {
|
||
|
qemu_dbus_display1_audio_complete_register_out_listener(
|
||
|
da->iface, invocation, NULL);
|
||
|
} else {
|
||
|
qemu_dbus_display1_audio_complete_register_in_listener(
|
||
|
da->iface, invocation, NULL);
|
||
|
}
|
||
|
|
||
|
listener_conn =
|
||
|
g_dbus_connection_new_sync(
|
||
|
G_IO_STREAM(socket_conn),
|
||
|
guid,
|
||
|
G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER,
|
||
|
NULL, NULL, &err);
|
||
|
if (err) {
|
||
|
error_report("Failed to setup peer connection: %s", err->message);
|
||
|
return DBUS_METHOD_INVOCATION_HANDLED;
|
||
|
}
|
||
|
|
||
|
listener = out ?
|
||
|
G_OBJECT(qemu_dbus_display1_audio_out_listener_proxy_new_sync(
|
||
|
listener_conn,
|
||
|
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
|
||
|
NULL,
|
||
|
"/org/qemu/Display1/AudioOutListener",
|
||
|
NULL,
|
||
|
&err)) :
|
||
|
G_OBJECT(qemu_dbus_display1_audio_in_listener_proxy_new_sync(
|
||
|
listener_conn,
|
||
|
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
|
||
|
NULL,
|
||
|
"/org/qemu/Display1/AudioInListener",
|
||
|
NULL,
|
||
|
&err));
|
||
|
if (!listener) {
|
||
|
error_report("Failed to setup proxy: %s", err->message);
|
||
|
return DBUS_METHOD_INVOCATION_HANDLED;
|
||
|
}
|
||
|
|
||
|
if (out) {
|
||
|
HWVoiceOut *hw;
|
||
|
|
||
|
QLIST_FOREACH(hw, &s->hw_head_out, entries) {
|
||
|
DBusVoiceOut *vo = container_of(hw, DBusVoiceOut, hw);
|
||
|
QemuDBusDisplay1AudioOutListener *l =
|
||
|
QEMU_DBUS_DISPLAY1_AUDIO_OUT_LISTENER(listener);
|
||
|
|
||
|
dbus_init_out_listener(l, hw);
|
||
|
qemu_dbus_display1_audio_out_listener_call_set_enabled(
|
||
|
l, (uintptr_t)hw, vo->enabled,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
} else {
|
||
|
HWVoiceIn *hw;
|
||
|
|
||
|
QLIST_FOREACH(hw, &s->hw_head_in, entries) {
|
||
|
DBusVoiceIn *vo = container_of(hw, DBusVoiceIn, hw);
|
||
|
QemuDBusDisplay1AudioInListener *l =
|
||
|
QEMU_DBUS_DISPLAY1_AUDIO_IN_LISTENER(listener);
|
||
|
|
||
|
dbus_init_in_listener(
|
||
|
QEMU_DBUS_DISPLAY1_AUDIO_IN_LISTENER(listener), hw);
|
||
|
qemu_dbus_display1_audio_in_listener_call_set_enabled(
|
||
|
l, (uintptr_t)hw, vo->enabled,
|
||
|
G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
g_object_set_data_full(G_OBJECT(listener_conn), "name",
|
||
|
g_strdup(sender), g_free);
|
||
|
g_hash_table_insert(listeners, g_strdup(sender), listener);
|
||
|
g_object_connect(listener_conn,
|
||
|
"signal::closed",
|
||
|
out ? listener_out_vanished_cb : listener_in_vanished_cb,
|
||
|
da,
|
||
|
NULL);
|
||
|
|
||
|
return DBUS_METHOD_INVOCATION_HANDLED;
|
||
|
}
|
||
|
|
||
|
static gboolean
|
||
|
dbus_audio_register_out_listener(AudioState *s,
|
||
|
GDBusMethodInvocation *invocation,
|
||
|
GUnixFDList *fd_list,
|
||
|
GVariant *arg_listener)
|
||
|
{
|
||
|
return dbus_audio_register_listener(s, invocation,
|
||
|
fd_list, arg_listener, true);
|
||
|
|
||
|
}
|
||
|
|
||
|
static gboolean
|
||
|
dbus_audio_register_in_listener(AudioState *s,
|
||
|
GDBusMethodInvocation *invocation,
|
||
|
GUnixFDList *fd_list,
|
||
|
GVariant *arg_listener)
|
||
|
{
|
||
|
return dbus_audio_register_listener(s, invocation,
|
||
|
fd_list, arg_listener, false);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
dbus_audio_set_server(AudioState *s, GDBusObjectManagerServer *server)
|
||
|
{
|
||
|
DBusAudio *da = s->drv_opaque;
|
||
|
|
||
|
g_assert(da);
|
||
|
g_assert(!da->server);
|
||
|
|
||
|
da->server = g_object_ref(server);
|
||
|
|
||
|
da->audio = g_dbus_object_skeleton_new(DBUS_DISPLAY1_AUDIO_PATH);
|
||
|
da->iface = qemu_dbus_display1_audio_skeleton_new();
|
||
|
g_object_connect(da->iface,
|
||
|
"swapped-signal::handle-register-in-listener",
|
||
|
dbus_audio_register_in_listener, s,
|
||
|
"swapped-signal::handle-register-out-listener",
|
||
|
dbus_audio_register_out_listener, s,
|
||
|
NULL);
|
||
|
|
||
|
g_dbus_object_skeleton_add_interface(G_DBUS_OBJECT_SKELETON(da->audio),
|
||
|
G_DBUS_INTERFACE_SKELETON(da->iface));
|
||
|
g_dbus_object_manager_server_export(da->server, da->audio);
|
||
|
}
|
||
|
|
||
|
static struct audio_pcm_ops dbus_pcm_ops = {
|
||
|
.init_out = dbus_init_out,
|
||
|
.fini_out = dbus_fini_out,
|
||
|
.write = audio_generic_write,
|
||
|
.get_buffer_out = dbus_get_buffer_out,
|
||
|
.put_buffer_out = dbus_put_buffer_out,
|
||
|
.enable_out = dbus_enable_out,
|
||
|
.volume_out = dbus_volume_out,
|
||
|
|
||
|
.init_in = dbus_init_in,
|
||
|
.fini_in = dbus_fini_in,
|
||
|
.read = dbus_read,
|
||
|
.run_buffer_in = audio_generic_run_buffer_in,
|
||
|
.enable_in = dbus_enable_in,
|
||
|
.volume_in = dbus_volume_in,
|
||
|
};
|
||
|
|
||
|
static struct audio_driver dbus_audio_driver = {
|
||
|
.name = "dbus",
|
||
|
.descr = "Timer based audio exposed with DBus interface",
|
||
|
.init = dbus_audio_init,
|
||
|
.fini = dbus_audio_fini,
|
||
|
.set_dbus_server = dbus_audio_set_server,
|
||
|
.pcm_ops = &dbus_pcm_ops,
|
||
|
.can_be_default = 1,
|
||
|
.max_voices_out = INT_MAX,
|
||
|
.max_voices_in = INT_MAX,
|
||
|
.voice_size_out = sizeof(DBusVoiceOut),
|
||
|
.voice_size_in = sizeof(DBusVoiceIn)
|
||
|
};
|
||
|
|
||
|
static void register_audio_dbus(void)
|
||
|
{
|
||
|
audio_driver_register(&dbus_audio_driver);
|
||
|
}
|
||
|
type_init(register_audio_dbus);
|
||
|
|
||
|
module_dep("ui-dbus")
|