Hi,
On Aug 7 2017 16:43, Oleksandr Andrushchenko wrote:
From: Oleksandr Andrushchenko oleksandr_andrushchenko@epam.com
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
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(+)
As a quick glance of your first patch, it's apparently based on your local working branch. I'd like you to post patchset again, which were rebased on current upstream[1], so that code reviewers can do their work.
[1] 'for-next' branch in Iwai-san's tree https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/log/?h=for-n...
Regards
Takashi Sakamoto