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| author | Takashi Iwai <tiwai@suse.de> | 2018-06-04 12:41:48 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-06-04 12:42:27 +0300 |
| commit | cdbc653a04ee692a7105a96e8dd6055d9971d45c (patch) | |
| tree | c1282680b3115edfd693a27bc6758208534ac557 /sound/xen/xen_snd_front.h | |
| parent | 009f8c90f571d87855914dbc20e6c0ea2a3b19ae (diff) | |
| parent | ceec4684085a9e4dc60439d84ab47ce260444804 (diff) | |
| download | linux-cdbc653a04ee692a7105a96e8dd6055d9971d45c.tar.xz | |
Merge branch 'for-next' into for-linus
4.18-rc1 merge material.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/xen/xen_snd_front.h')
| -rw-r--r-- | sound/xen/xen_snd_front.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sound/xen/xen_snd_front.h b/sound/xen/xen_snd_front.h new file mode 100644 index 000000000000..a2ea2463bcc5 --- /dev/null +++ b/sound/xen/xen_snd_front.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0 OR MIT */ + +/* + * Xen para-virtual sound device + * + * Copyright (C) 2016-2018 EPAM Systems Inc. + * + * Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> + */ + +#ifndef __XEN_SND_FRONT_H +#define __XEN_SND_FRONT_H + +#include "xen_snd_front_cfg.h" + +struct xen_snd_front_card_info; +struct xen_snd_front_evtchnl; +struct xen_snd_front_evtchnl_pair; +struct xen_snd_front_shbuf; +struct xensnd_query_hw_param; + +struct xen_snd_front_info { + struct xenbus_device *xb_dev; + + struct xen_snd_front_card_info *card_info; + + int num_evt_pairs; + struct xen_snd_front_evtchnl_pair *evt_pairs; + + struct xen_front_cfg_card cfg; +}; + +int xen_snd_front_stream_query_hw_param(struct xen_snd_front_evtchnl *evtchnl, + struct xensnd_query_hw_param *hw_param_req, + struct xensnd_query_hw_param *hw_param_resp); + +int xen_snd_front_stream_prepare(struct xen_snd_front_evtchnl *evtchnl, + struct xen_snd_front_shbuf *sh_buf, + u8 format, unsigned int channels, + unsigned int rate, u32 buffer_sz, + u32 period_sz); + +int xen_snd_front_stream_close(struct xen_snd_front_evtchnl *evtchnl); + +int xen_snd_front_stream_write(struct xen_snd_front_evtchnl *evtchnl, + unsigned long pos, unsigned long count); + +int xen_snd_front_stream_read(struct xen_snd_front_evtchnl *evtchnl, + unsigned long pos, unsigned long count); + +int xen_snd_front_stream_trigger(struct xen_snd_front_evtchnl *evtchnl, + int type); + +#endif /* __XEN_SND_FRONT_H */ |