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Tsirkin" To: qemu-devel@nongnu.org Cc: Peter Maydell , Manos Pitsidianakis , Igor Skalkin , Anton Yakovlev , Alex =?utf-8?Q?Benn=C3=A9e?= , Gerd Hoffmann Subject: [PULL 13/63] virtio-sound: handle VIRTIO_SND_R_PCM_SET_PARAMS Message-ID: <64704ce04b0a62184d49f899e7f300f67480a2a6.1699351720.git.mst@redhat.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent 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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=mst@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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1699352213194100013 From: Manos Pitsidianakis Handle the set parameters control request. It reconfigures a stream based on a guest's preference if the values are valid and supported. Based-on: https://github.com/OpenSynergy/qemu/commit/5a2f350eec5d157b90d9c7= b40a8e603f4da92471 Signed-off-by: Igor Skalkin Signed-off-by: Anton Yakovlev Signed-off-by: Manos Pitsidianakis Reviewed-by: Alex Benn=C3=A9e Tested-by: Alex Benn=C3=A9e Message-Id: Acked-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/audio/virtio-snd.c | 34 ++++++++++++++++++++++++++++++++++ hw/audio/trace-events | 1 + 2 files changed, 35 insertions(+) diff --git a/hw/audio/virtio-snd.c b/hw/audio/virtio-snd.c index e6791de6c6..084890e52b 100644 --- a/hw/audio/virtio-snd.c +++ b/hw/audio/virtio-snd.c @@ -287,6 +287,38 @@ uint32_t virtio_snd_set_pcm_params(VirtIOSound *s, return cpu_to_le32(VIRTIO_SND_S_OK); } =20 +/* + * Handles the VIRTIO_SND_R_PCM_SET_PARAMS request. + * + * @s: VirtIOSound device + * @cmd: The request command queue element from VirtIOSound cmdq field + */ +static void virtio_snd_handle_pcm_set_params(VirtIOSound *s, + virtio_snd_ctrl_command *cmd) +{ + virtio_snd_pcm_set_params req =3D { 0 }; + uint32_t stream_id; + size_t msg_sz =3D iov_to_buf(cmd->elem->out_sg, + cmd->elem->out_num, + 0, + &req, + sizeof(virtio_snd_pcm_set_params)); + + if (msg_sz !=3D sizeof(virtio_snd_pcm_set_params)) { + /* + * TODO: do we need to set DEVICE_NEEDS_RESET? + */ + qemu_log_mask(LOG_GUEST_ERROR, + "%s: virtio-snd command size incorrect %zu vs \ + %zu\n", __func__, msg_sz, sizeof(virtio_snd_pcm_set_params= )); + cmd->resp.code =3D cpu_to_le32(VIRTIO_SND_S_BAD_MSG); + return; + } + stream_id =3D le32_to_cpu(req.hdr.stream_id); + trace_virtio_snd_handle_pcm_set_params(stream_id); + cmd->resp.code =3D virtio_snd_set_pcm_params(s, stream_id, &req); +} + /* * Get a QEMU Audiosystem compatible format value from a VIRTIO_SND_PCM_FM= T_* */ @@ -534,6 +566,8 @@ process_cmd(VirtIOSound *s, virtio_snd_ctrl_command *cm= d) virtio_snd_handle_pcm_start_stop(s, cmd, false); break; case VIRTIO_SND_R_PCM_SET_PARAMS: + virtio_snd_handle_pcm_set_params(s, cmd); + break; case VIRTIO_SND_R_PCM_PREPARE: case VIRTIO_SND_R_PCM_RELEASE: cmd->resp.code =3D cpu_to_le32(VIRTIO_SND_S_NOT_SUPP); diff --git a/hw/audio/trace-events b/hw/audio/trace-events index db48ff04fe..3badcab2e8 100644 --- a/hw/audio/trace-events +++ b/hw/audio/trace-events @@ -47,6 +47,7 @@ virtio_snd_vm_state_running(void) "vm state running" virtio_snd_vm_state_stopped(void) "vm state stopped" virtio_snd_realize(void *snd) "snd %p: realize" virtio_snd_unrealize(void *snd) "snd %p: unrealize" +virtio_snd_handle_pcm_set_params(uint32_t stream) "VIRTIO_SND_PCM_SET_PARA= MS called for stream %"PRIu32 virtio_snd_handle_ctrl(void *vdev, void *vq) "snd %p: handle ctrl event fo= r queue %p" virtio_snd_handle_pcm_info(uint32_t stream) "VIRTIO_SND_R_PCM_INFO called = for stream %"PRIu32 virtio_snd_handle_pcm_start_stop(const char *code, uint32_t stream) "%s ca= lled for stream %"PRIu32 --=20 MST