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1cee559351
Implement essential initialization of the sound driver:
- introduce required data structures
- handle driver registration
- handle sound card registration
- register sound driver on backend connection
- remove sound driver on backend disconnect
Initialize virtual sound card with streams according to the
Xen store configuration.
Implement ALSA driver operations including:
- manage frontend/backend shared buffers
- manage Xen bus event channel states
Implement requests from front to back for ALSA
PCM operations.
- report ALSA period elapsed event: handle XENSND_EVT_CUR_POS
notifications from the backend when stream position advances
during playback/capture. The event carries a value of how
many octets were played/captured at the time of the event.
- implement explicit stream parameter negotiation between
backend and frontend: handle XENSND_OP_HW_PARAM_QUERY request
to read/update configuration space for the parameter given:
request passes desired parameter interval and the response to
this request returns min/max interval for the parameter to be used.
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
10 lines
259 B
Makefile
10 lines
259 B
Makefile
# SPDX-License-Identifier: GPL-2.0 OR MIT
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snd_xen_front-objs := xen_snd_front.o \
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xen_snd_front_cfg.o \
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xen_snd_front_evtchnl.o \
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xen_snd_front_shbuf.o \
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xen_snd_front_alsa.o
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obj-$(CONFIG_SND_XEN_FRONTEND) += snd_xen_front.o
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