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Subject[PATCH 00/11] ALSA: vsnd: Add Xen para-virtualized frontend driver
From: Oleksandr Andrushchenko <>

This patch series adds support for Xen [1] para-virtualized
sound frontend driver. It implements the protocol from
include/xen/interface/io/sndif.h with the following limitations:
- mute/unmute is not supported
- get/set volume is not supported
Volume control is not supported for the reason that most of the
use-cases (at the moment) are based on scenarious where
unprivileged OS (e.g. Android, AGL etc) use software mixers.

Both capture and playback are supported.

Thank you,


Oleksandr Andrushchenko (11):
ALSA: vsnd: Implement driver's probe/remove
ALSA: vsnd: Implement Xen bus state handling
ALSA: vsnd: Read sound driver configuration from Xen store
ALSA: vsnd: Implement Xen event channel handling
ALSA: vsnd: Implement handling of shared buffers
ALSA: vsnd: Introduce ALSA virtual sound driver
ALSA: vsnd: Initialize virtul sound card
ALSA: vsnd: Add timer for period interrupt emulation
ALSA: vsnd: Implement ALSA PCM operations
ALSA: vsnd: Implement communication with backend
ALSA: vsnd: Introduce Kconfig option to enable Xen PV sound

sound/drivers/Kconfig | 12 +
sound/drivers/Makefile | 2 +
sound/drivers/xen-front.c | 2029 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 2043 insertions(+)


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