[RFC PATCH 24/25] virtio-snd: Add event vq and a handler stub

[Shreyansh Chouhan]

Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh2702@gmail.com>
---
 hw/audio/virtio-snd.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/hw/audio/virtio-snd.c b/hw/audio/virtio-snd.c
index 80a34e1207..81a478d039 100644
--- a/hw/audio/virtio-snd.c
+++ b/hw/audio/virtio-snd.c
@@ -1080,6 +1080,18 @@ static void virtio_snd_handle_xfer(VirtIODevice *vdev, 
VirtQueue *vq)
     }
 }
 
+/*
+ * The event virtqueue handler.
+ * Not implemented yet.
+ *
+ * @vdev: VirtIOSound card
+ * @vq: event vq
+ */
+static void virtio_snd_handle_event(VirtIODevice *vdev, VirtQueue *vq)
+{
+    virtio_snd_log("event queue callback called\n");
+}
+
 /*
  * Initializes the VirtIOSound card device. Validates the configuration
  * passed by the command line. Initializes the virtqueues. Allocates resources
@@ -1124,6 +1136,7 @@ static void virtio_snd_device_realize(DeviceState *dev, 
Error **errp)
     default_params.rate = VIRTIO_SND_PCM_RATE_44100;
 
     s->ctrl_vq = virtio_add_queue(vdev, 64, virtio_snd_handle_ctrl);
+    s->event_vq = virtio_add_queue(vdev, 64, virtio_snd_handle_event);
     s->tx_vq = virtio_add_queue(vdev, 64, virtio_snd_handle_xfer);
     s->rx_vq = virtio_add_queue(vdev, 64, virtio_snd_handle_xfer);
 
@@ -1192,6 +1205,7 @@ static void virtio_snd_device_unrealize(DeviceState *dev)
     s->jacks = NULL;
 
     virtio_delete_queue(s->ctrl_vq);
+    virtio_delete_queue(s->event_vq);
     virtio_delete_queue(s->tx_vq);
     virtio_delete_queue(s->rx_vq);
 }
-- 
2.31.1