sound/virtio/virtio_pcm.c

220 	struct virtio_pcm *vpcm;
222 	list_for_each_entry(vpcm, &snd->pcm_list, list)
223 		if (vpcm->nid == nid)
224 			return vpcm;
241 	struct virtio_pcm *vpcm;
243 	vpcm = virtsnd_pcm_find(snd, nid);
244 	if (!IS_ERR(vpcm))
245 		return vpcm;
247 	vpcm = devm_kzalloc(&vdev->dev, sizeof(*vpcm), GFP_KERNEL);
248 	if (!vpcm)
251 	vpcm->nid = nid;
252 	list_add_tail(&vpcm->list, &snd->pcm_list);
254 	return vpcm;
353 		struct virtio_pcm *vpcm;
367 		vpcm = virtsnd_pcm_find_or_create(snd, vss->nid);
368 		if (IS_ERR(vpcm)) {
369 			rc = PTR_ERR(vpcm);
387 		vpcm->streams[vss->direction].nsubstreams++;
406 	struct virtio_pcm *vpcm;
410 	list_for_each_entry(vpcm, &snd->pcm_list, list) {
412 			vpcm->streams[SNDRV_PCM_STREAM_PLAYBACK].nsubstreams;
414 			vpcm->streams[SNDRV_PCM_STREAM_CAPTURE].nsubstreams;
419 		rc = snd_pcm_new(snd->card, VIRTIO_SND_CARD_DRIVER, vpcm->nid,
420 				 npbs, ncps, &vpcm->pcm);
423 				vpcm->nid, rc);
427 		vpcm->pcm->info_flags = 0;
428 		vpcm->pcm->dev_class = SNDRV_PCM_CLASS_GENERIC;
429 		vpcm->pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
430 		snprintf(vpcm->pcm->name, sizeof(vpcm->pcm->name),
431 			 VIRTIO_SND_PCM_NAME " %u", vpcm->pcm->device);
432 		vpcm->pcm->private_data = vpcm;
433 		vpcm->pcm->nonatomic = true;
435 		for (i = 0; i < ARRAY_SIZE(vpcm->streams); ++i) {
436 			struct virtio_pcm_stream *stream = &vpcm->streams[i];
456 		vpcm = virtsnd_pcm_find(snd, vss->nid);
457 		if (IS_ERR(vpcm))
458 			return PTR_ERR(vpcm);
460 		vs = &vpcm->streams[vss->direction];
464 	list_for_each_entry(vpcm, &snd->pcm_list, list) {
465 		for (i = 0; i < ARRAY_SIZE(vpcm->streams); ++i) {
466 			struct virtio_pcm_stream *vs = &vpcm->streams[i];
467 			struct snd_pcm_str *ks = &vpcm->pcm->streams[i];
476 			snd_pcm_set_ops(vpcm->pcm, i, &virtsnd_pcm_ops[i]);
479 		snd_pcm_set_managed_buffer_all(vpcm->pcm,