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[v2,0/1] ALSA: virtio: add support for audio controls

Message ID 20240115133654.576068-1-aiswarya.cyriac@opensynergy.com (mailing list archive)
Headers show
Series ALSA: virtio: add support for audio controls | expand

Message

Aiswarya Cyriac Jan. 15, 2024, 1:36 p.m. UTC 
From: Anton Yakovlev <anton.yakovlev@opensynergy.com>

Changes in v2
- Fix reporting of incorrect number of items for ENUMERATED controls

Implementation of support for audio controls in accordance with the
extension of the virtio sound device specification[1] planned for
virtio-v1.3-cs01.

Design　of virtual audio controls is based on and derived from ALSA
audio controls. It allows the driver to perform all standard operations,
such as reading and writing audio control value, as well as working with
metadata (represented in the TLV form).

The driver part was tested on top of the Linux 5.10 kernel.

As a device part was used OpenSynergy proprietary implementation.

[1] https://lists.oasis-open.org/archives/virtio-comment/202104/msg00013.html

Anton Yakovlev (1):
  ALSA: virtio: add support for audio controls

 include/uapi/linux/virtio_snd.h | 154 +++++++++++
 sound/virtio/Makefile           |   1 +
 sound/virtio/virtio_card.c      |  21 ++
 sound/virtio/virtio_card.h      |  22 ++
 sound/virtio/virtio_kctl.c      | 464 ++++++++++++++++++++++++++++++++
 5 files changed, 662 insertions(+)
 create mode 100644 sound/virtio/virtio_kctl.c

Comments

Takashi Iwai Feb. 9, 2024, 1:01 p.m. UTC | #1 
On Mon, 15 Jan 2024 14:36:53 +0100,
Aiswarya Cyriac wrote:
> 
> From: Anton Yakovlev <anton.yakovlev@opensynergy.com>
> 
> Changes in v2
> - Fix reporting of incorrect number of items for ENUMERATED controls
> 
> Implementation of support for audio controls in accordance with the
> extension of the virtio sound device specification[1] planned for
> virtio-v1.3-cs01.
> 
> Design　of virtual audio controls is based on and derived from ALSA
> audio controls. It allows the driver to perform all standard operations,
> such as reading and writing audio control value, as well as working with
> metadata (represented in the TLV form).
> 
> The driver part was tested on top of the Linux 5.10 kernel.
> 
> As a device part was used OpenSynergy proprietary implementation.
> 
> [1] https://lists.oasis-open.org/archives/virtio-comment/202104/msg00013.html
> 
> Anton Yakovlev (1):
>   ALSA: virtio: add support for audio controls

Applied now.  Thanks.


Takashi