Signed-off-by: Shreyansh Chouhan <[email protected]>
---
hw/audio/virtio-snd.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/hw/audio/virtio-snd.c b/hw/audio/virtio-snd.c
index 65104baba8..8be3fb9bf5 100644
--- a/hw/audio/virtio-snd.c
+++ b/hw/audio/virtio-snd.c
@@ -760,6 +760,35 @@ static uint32_t virtio_snd_handle_pcm_start(VirtIOSound *s,
return sz;
}
+/*
+ * Handles VIRTIO_SND_R_PCM_STOP.
+ * The function writes the response to the virtqueue element.
+ * Returns the used size in bytes.
+ * TODO: Doesn't handle the stream buffers that are yet to be played.
+ *
+ * @s: VirtIOSound card
+ * @elem: The request element from control queue
+ */
+static uint32_t virtio_snd_handle_pcm_stop(VirtIOSound *s,
+ VirtQueueElement *elem)
+{
+ virtio_snd_pcm_hdr req;
+ size_t sz;
+
+ sz = iov_to_buf(elem->out_sg, elem->out_num, 0, &req, sizeof(req));
+ assert(sz == sizeof(virtio_snd_pcm_hdr));
+
+ virtio_snd_hdr resp;
+ resp.code = VIRTIO_SND_S_OK;
+
+ virtio_snd_pcm_stream *st = virtio_snd_pcm_get_stream(s, req.stream_id);
+ AUD_set_active_out(st->voice.out, false);
+
+ sz = iov_from_buf(elem->in_sg, elem->in_num, 0, &resp, sizeof(resp));
+ assert(sz == sizeof(virtio_snd_hdr));
+ return sz;
+}
+
/* The control queue handler. Pops an element from the control virtqueue,
* checks the header and performs the requested action. Finally marks the
* element as used.
@@ -817,7 +846,8 @@ static void virtio_snd_handle_ctrl(VirtIODevice *vdev,
VirtQueue *vq)
sz = virtio_snd_handle_pcm_start(s, elem);
goto done;
} else if (ctrl.code == VIRTIO_SND_R_PCM_STOP) {
- virtio_snd_log("VIRTIO_SND_R_PCM_STOP");
+ sz = virtio_snd_handle_pcm_stop(s, elem);
+ goto done;
} else if (ctrl.code == VIRTIO_SND_R_PCM_RELEASE) {
virtio_snd_log("VIRTIO_SND_R_PCM_RELEASE");
} else {
--
2.25.1
