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-rw-r--r--sound/virtio/virtio_card.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h
index 86ef394189..3ceee4e416 100644
--- a/sound/virtio/virtio_card.h
+++ b/sound/virtio/virtio_card.h
@@ -32,6 +32,16 @@ struct virtio_snd_queue {
};
/**
+ * struct virtio_kctl - VirtIO control element.
+ * @kctl: ALSA control element.
+ * @items: Items for the ENUMERATED element type.
+ */
+struct virtio_kctl {
+ struct snd_kcontrol *kctl;
+ struct virtio_snd_ctl_enum_item *items;
+};
+
+/**
* struct virtio_snd - VirtIO sound card device.
* @vdev: Underlying virtio device.
* @queues: Virtqueue wrappers.
@@ -45,6 +55,9 @@ struct virtio_snd_queue {
* @nsubstreams: Number of PCM substreams.
* @chmaps: VirtIO channel maps.
* @nchmaps: Number of channel maps.
+ * @kctl_infos: VirtIO control element information.
+ * @kctls: VirtIO control elements.
+ * @nkctls: Number of control elements.
*/
struct virtio_snd {
struct virtio_device *vdev;
@@ -59,6 +72,9 @@ struct virtio_snd {
u32 nsubstreams;
struct virtio_snd_chmap_info *chmaps;
u32 nchmaps;
+ struct virtio_snd_ctl_info *kctl_infos;
+ struct virtio_kctl *kctls;
+ u32 nkctls;
};
/* Message completion timeout in milliseconds (module parameter). */
@@ -108,4 +124,10 @@ int virtsnd_chmap_parse_cfg(struct virtio_snd *snd);
int virtsnd_chmap_build_devs(struct virtio_snd *snd);
+int virtsnd_kctl_parse_cfg(struct virtio_snd *snd);
+
+int virtsnd_kctl_build_devs(struct virtio_snd *snd);
+
+void virtsnd_kctl_event(struct virtio_snd *snd, struct virtio_snd_event *event);
+
#endif /* VIRTIO_SND_CARD_H */