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Add virtio-sound device stub

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Add a new VIRTIO device for the virtio sound device id. Functionality
will be added in the following commits.

Based-on: 5a2f350eec
Signed-off-by: Igor Skalkin <Igor.Skalkin@opensynergy.com>
Signed-off-by: Anton Yakovlev <Anton.Yakovlev@opensynergy.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <f9678a41fe97b5886c1b04795f1be046509de866.1698062525.git.manos.pitsidianakis@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Manos Pitsidianakis 2023-10-23 15:03:18 +03:00 • committed by Michael S. Tsirkin
parent bca3e2a138
commit 2880e676c0
7 changed files with 335 additions and 0 deletions
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79
include/hw/audio/virtio-snd.h Normal file
View file

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/*
* VIRTIO Sound Device conforming to
*
* "Virtual I/O Device (VIRTIO) Version 1.2
* Committee Specification Draft 01
* 09 May 2022"
*
* Copyright (c) 2023 Emmanouil Pitsidianakis <manos.pitsidianakis@linaro.org>
* Copyright (C) 2019 OpenSynergy GmbH
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* (at your option) any later version. See the COPYING file in the
* top-level directory.
*/
#ifndef QEMU_VIRTIO_SOUND_H
#define QEMU_VIRTIO_SOUND_H
#include "hw/virtio/virtio.h"
#include "audio/audio.h"
#include "standard-headers/linux/virtio_ids.h"
#include "standard-headers/linux/virtio_snd.h"
#define TYPE_VIRTIO_SND "virtio-sound-device"
#define VIRTIO_SND(obj) \
OBJECT_CHECK(VirtIOSound, (obj), TYPE_VIRTIO_SND)
/* CONFIGURATION SPACE */
typedef struct virtio_snd_config virtio_snd_config;
/* COMMON DEFINITIONS */
/* common header for request/response*/
typedef struct virtio_snd_hdr virtio_snd_hdr;
/* event notification */
typedef struct virtio_snd_event virtio_snd_event;
/* common control request to query an item information */
typedef struct virtio_snd_query_info virtio_snd_query_info;
/* JACK CONTROL MESSAGES */
typedef struct virtio_snd_jack_hdr virtio_snd_jack_hdr;
/* jack information structure */
typedef struct virtio_snd_jack_info virtio_snd_jack_info;
/* jack remapping control request */
typedef struct virtio_snd_jack_remap virtio_snd_jack_remap;
/*
* PCM CONTROL MESSAGES
*/
typedef struct virtio_snd_pcm_hdr virtio_snd_pcm_hdr;
/* PCM stream info structure */
typedef struct virtio_snd_pcm_info virtio_snd_pcm_info;
/* set PCM stream params */
typedef struct virtio_snd_pcm_set_params virtio_snd_pcm_set_params;
/* I/O request header */
typedef struct virtio_snd_pcm_xfer virtio_snd_pcm_xfer;
/* I/O request status */
typedef struct virtio_snd_pcm_status virtio_snd_pcm_status;
typedef struct VirtIOSound {
VirtIODevice parent_obj;
VirtQueue *queues[VIRTIO_SND_VQ_MAX];
uint64_t features;
QEMUSoundCard card;
VMChangeStateEntry *vmstate;
virtio_snd_config snd_conf;
} VirtIOSound;
#endif