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authorDaniel P. Berrangé <berrange@redhat.com>2023-01-23 09:39:56 +0100
committerThomas Huth <thuth@redhat.com>2023-01-30 15:43:48 +0100
commit637d18090ed2fc8d5edea0c0c584291cb792a086 (patch)
treefe6d49d277a4e441b4fc141cab9c172c19a914de /audio
parente59a59a457bf135e2acd38df2ca7aca9c93e53d1 (diff)
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qapi, audio: add query-audiodev command
Way back in QEMU 4.0, the -audiodev command line option was introduced for configuring audio backends. This CLI option does not use QemuOpts so it is not visible for introspection in 'query-command-line-options', instead using the QAPI Audiodev type. Unfortunately there is also no QMP command that uses the Audiodev type, so it is not introspectable with 'query-qmp-schema' either. This introduces a 'query-audiodev' command that simply reflects back the list of configured -audiodev command line options. This alone is maybe not very useful by itself, but it makes Audiodev introspectable via 'query-qmp-schema', so that libvirt (and other upper layer tools) can discover the available audiodevs. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> [thuth: Update for upcoming QEMU v8.0, and use QAPI_LIST_PREPEND] Message-Id: <20230123083957.20349-2-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'audio')
-rw-r--r--audio/audio.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/audio/audio.c b/audio/audio.c
index d849a94..6f270c0 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -28,8 +28,10 @@
#include "monitor/monitor.h"
#include "qemu/timer.h"
#include "qapi/error.h"
+#include "qapi/clone-visitor.h"
#include "qapi/qobject-input-visitor.h"
#include "qapi/qapi-visit-audio.h"
+#include "qapi/qapi-commands-audio.h"
#include "qemu/cutils.h"
#include "qemu/module.h"
#include "qemu/help_option.h"
@@ -2311,3 +2313,13 @@ size_t audio_rate_get_bytes(RateCtl *rate, struct audio_pcm_info *info,
return bytes;
}
+
+AudiodevList *qmp_query_audiodevs(Error **errp)
+{
+ AudiodevList *ret = NULL;
+ AudiodevListEntry *e;
+ QSIMPLEQ_FOREACH(e, &audiodevs, next) {
+ QAPI_LIST_PREPEND(ret, QAPI_CLONE(Audiodev, e->dev));
+ }
+ return ret;
+}