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[109.242.225.200]) by smtp.gmail.com with ESMTPSA id n4-20020a05600c294400b003fe2a40d287sm126905wmd.1.2023.08.22.12.19.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Aug 2023 12:19:37 -0700 (PDT) From: Emmanouil Pitsidianakis To: qemu-devel@nongnu.org Cc: Emmanouil Pitsidianakis , "Igor Skalkin" , "Anton Yakovlev" , "Paolo Bonzini" , "Gerd Hoffmann" , "Michael S. Tsirkin" , "Marcel Apfelbaum" , =?utf-8?q?Daniel_P=2E_Berr?= =?utf-8?q?ang=C3=A9?= , "Eduardo Habkost" , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , =?utf-8?q?Volker_R=C3=BCmelin?= , =?utf-8?b?S8WRdsOh?= =?utf-8?b?Z8OzLCBab2x0w6Fu?= , =?utf-8?q?Alex_Benn?= =?utf-8?q?=C3=A9e?= , =?utf-8?q?Philippe_Mathieu-Da?= =?utf-8?q?ud=C3=A9?= Subject: [PATCH v7 09/12] virtio-sound: handle VIRTIO_SND_PCM_RELEASE Date: Tue, 22 Aug 2023 22:18:32 +0300 Message-Id: X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::436; envelope-from=manos.pitsidianakis@linaro.org; helo=mail-wr1-x436.google.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Handle the PCM release control request, which is necessary for flushing pending sound IO. No IO is handled yet so currently it only replies to the request. Signed-off-by: Emmanouil Pitsidianakis --- hw/virtio/trace-events | 1 + hw/virtio/virtio-snd.c | 38 +++++++++++++++++++++++++++++++++++++- 2 files changed, 38 insertions(+), 1 deletion(-) diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index f70cde4f01..60ab62a80d 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -167,6 +167,7 @@ virtio_snd_handle_pcm_set_params(uint32_t stream) "VIRTIO_SND_PCM_SET_PARAMS cal virtio_snd_handle_ctrl(void *vdev, void *vq) "snd %p: handle ctrl event for 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 called for stream %"PRIu32 +virtio_snd_handle_pcm_release(uint32_t stream) "VIRTIO_SND_PCM_RELEASE called for stream %"PRIu32 virtio_snd_handle_code(uint32_t val, const char *code) "ctrl code msg val = %"PRIu32" == %s" virtio_snd_handle_chmap_info(void) "VIRTIO_SND_CHMAP_INFO called" virtio_snd_handle_event(void) "event queue callback called" diff --git a/hw/virtio/virtio-snd.c b/hw/virtio/virtio-snd.c index 87f8469f14..7052aa4e89 100644 --- a/hw/virtio/virtio-snd.c +++ b/hw/virtio/virtio-snd.c @@ -486,6 +486,42 @@ static void virtio_snd_handle_pcm_start_stop(VirtIOSound *s, } } +/* + * Handles VIRTIO_SND_R_PCM_RELEASE. Releases the buffer resources allocated to + * a stream. + * + * @s: VirtIOSound device + * @cmd: The request command queue element from VirtIOSound cmdq field + */ +static void virtio_snd_handle_pcm_release(VirtIOSound *s, + virtio_snd_ctrl_command *cmd) +{ + uint32_t stream_id; + VirtIOSoundPCMStream *stream; + size_t sz = iov_to_buf(cmd->elem->out_sg, + cmd->elem->out_num, + sizeof(virtio_snd_hdr), + &stream_id, + sizeof(stream_id)); + if (sz != sizeof(uint32_t)) { + cmd->resp.code = VIRTIO_SND_S_BAD_MSG; + return; + } + + trace_virtio_snd_handle_pcm_release(stream_id); + + stream = virtio_snd_pcm_get_stream(s, stream_id); + if (!stream) { + error_report("already released stream %"PRIu32, stream_id); + virtio_error(VIRTIO_DEVICE(s), + "already released stream %"PRIu32, + stream_id); + cmd->resp.code = VIRTIO_SND_S_BAD_MSG; + return; + } + cmd->resp.code = VIRTIO_SND_S_OK; +} + /* * The actual processing done in virtio_snd_process_cmdq(). * @@ -533,7 +569,7 @@ process_cmd(VirtIOSound *s, virtio_snd_ctrl_command *cmd) virtio_snd_handle_pcm_prepare(s, cmd); break; case VIRTIO_SND_R_PCM_RELEASE: - cmd->resp.code = VIRTIO_SND_S_NOT_SUPP; + virtio_snd_handle_pcm_release(s, cmd); break; case VIRTIO_SND_R_CHMAP_INFO: qemu_log_mask(LOG_UNIMP,