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bh=ocPg71+qOhZnqdjzQlHrZVL35PkpIu+RVYUKJOpmEGc=; b=SLK27QnKgjrydOq/sxnTBnWKD/VYSu/q0rpuR3dXq+q2LtvsYojXyYSHTZ5K8iaqt9tERa tuEiWhDba/zewQJycgTMZOrRrbwVQnmKwNCk8kR/XYs8m7JCvEXHgye/NxAJi3f0kSrWBh JuC6nthaPJnn5oB7ZA6UnXtiOYDmgts= X-MC-Unique: RyOP4quTMRaAdAQcs45v_w-1 From: Thomas Huth To: Peter Maydell , qemu-devel@nongnu.org Cc: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Subject: [PULL 23/27] qapi, audio: add query-audiodev command Date: Tue, 31 Jan 2023 11:12:01 +0100 Message-Id: <20230131101205.1499867-24-thuth@redhat.com> In-Reply-To: <20230131101205.1499867-1-thuth@redhat.com> References: <20230131101205.1499867-1-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1675160088154100001 From: Daniel P. Berrang=C3=A9 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. Berrang=C3=A9 [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 --- qapi/audio.json | 13 +++++++++++++ audio/audio.c | 12 ++++++++++++ 2 files changed, 25 insertions(+) diff --git a/qapi/audio.json b/qapi/audio.json index 1e0a24bdfc..c7aafa2763 100644 --- a/qapi/audio.json +++ b/qapi/audio.json @@ -443,3 +443,16 @@ 'sndio': 'AudiodevSndioOptions', 'spice': 'AudiodevGenericOptions', 'wav': 'AudiodevWavOptions' } } + +## +# @query-audiodevs: +# +# Returns information about audiodev configuration +# +# Returns: array of @Audiodev +# +# Since: 8.0 +# +## +{ 'command': 'query-audiodevs', + 'returns': ['Audiodev'] } diff --git a/audio/audio.c b/audio/audio.c index d849a94a81..6f270c07b7 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 au= dio_pcm_info *info, =20 return bytes; } + +AudiodevList *qmp_query_audiodevs(Error **errp) +{ + AudiodevList *ret =3D NULL; + AudiodevListEntry *e; + QSIMPLEQ_FOREACH(e, &audiodevs, next) { + QAPI_LIST_PREPEND(ret, QAPI_CLONE(Audiodev, e->dev)); + } + return ret; +} --=20 2.31.1