sound/virtio/virtio_card.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
3  * virtio-snd: Virtio sound device
10 #include <linux/virtio.h>
17 #define VIRTIO_SND_CARD_DRIVER	"virtio-snd"
18 #define VIRTIO_SND_CARD_NAME	"VirtIO SoundCard"
19 #define VIRTIO_SND_PCM_NAME	"VirtIO PCM"
25  * struct virtio_snd_queue - Virtqueue wrapper structure.
35  * struct virtio_kctl - VirtIO control element.
45  * struct virtio_snd - VirtIO sound card device.
46  * @vdev: Underlying virtio device.
50  * @event_msgs: Device events.
51  * @pcm_list: VirtIO PCM device list.
52  * @jacks: VirtIO jacks.
54  * @substreams: VirtIO PCM substreams.
56  * @chmaps: VirtIO channel maps.
58  * @kctl_infos: VirtIO control element information.
59  * @kctls: VirtIO control elements.
86 	return &snd->queues[VIRTIO_SND_VQ_CONTROL];  in virtsnd_control_queue()
92 	return &snd->queues[VIRTIO_SND_VQ_EVENT];  in virtsnd_event_queue()
98 	return &snd->queues[VIRTIO_SND_VQ_TX];  in virtsnd_tx_queue()
104 	return &snd->queues[VIRTIO_SND_VQ_RX];  in virtsnd_rx_queue()
110 	if (vss->direction == SNDRV_PCM_STREAM_PLAYBACK)  in virtsnd_pcm_queue()
111 		return virtsnd_tx_queue(vss->snd);  in virtsnd_pcm_queue()
113 		return virtsnd_rx_queue(vss->snd);  in virtsnd_pcm_queue()