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fd3b36045c
Read configuration values from Xen store according
to xen/interface/io/sndif.h protocol:
- introduce configuration structures for different
components, e.g. sound card, device, stream
- read PCM HW parameters, e.g rate, format etc.
- detect stream type (capture/playback)
- read device and card parameters
Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
47 lines
991 B
C
47 lines
991 B
C
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
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/*
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* Xen para-virtual sound device
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*
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* Copyright (C) 2016-2018 EPAM Systems Inc.
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*
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* Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
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*/
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#ifndef __XEN_SND_FRONT_CFG_H
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#define __XEN_SND_FRONT_CFG_H
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#include <sound/core.h>
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#include <sound/pcm.h>
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struct xen_snd_front_info;
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struct xen_front_cfg_stream {
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int index;
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char *xenstore_path;
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struct snd_pcm_hardware pcm_hw;
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};
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struct xen_front_cfg_pcm_instance {
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char name[80];
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int device_id;
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struct snd_pcm_hardware pcm_hw;
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int num_streams_pb;
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struct xen_front_cfg_stream *streams_pb;
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int num_streams_cap;
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struct xen_front_cfg_stream *streams_cap;
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};
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struct xen_front_cfg_card {
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char name_short[32];
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char name_long[80];
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struct snd_pcm_hardware pcm_hw;
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int num_pcm_instances;
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struct xen_front_cfg_pcm_instance *pcm_instances;
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};
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int xen_snd_front_cfg_card(struct xen_snd_front_info *front_info,
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int *stream_cnt);
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#endif /* __XEN_SND_FRONT_CFG_H */
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