cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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xen_snd_front.h (1489B)

      1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
      2
      3/*
      4 * Xen para-virtual sound device
      5 *
      6 * Copyright (C) 2016-2018 EPAM Systems Inc.
      7 *
      8 * Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
      9 */
     10
     11#ifndef __XEN_SND_FRONT_H
     12#define __XEN_SND_FRONT_H
     13
     14#include "xen_snd_front_cfg.h"
     15
     16struct xen_snd_front_card_info;
     17struct xen_snd_front_evtchnl;
     18struct xen_snd_front_evtchnl_pair;
     19struct xen_front_pgdir_shbuf;
     20struct xensnd_query_hw_param;
     21
     22struct xen_snd_front_info {
     23	struct xenbus_device *xb_dev;
     24
     25	struct xen_snd_front_card_info *card_info;
     26
     27	int num_evt_pairs;
     28	struct xen_snd_front_evtchnl_pair *evt_pairs;
     29
     30	struct xen_front_cfg_card cfg;
     31};
     32
     33int xen_snd_front_stream_query_hw_param(struct xen_snd_front_evtchnl *evtchnl,
     34					struct xensnd_query_hw_param *hw_param_req,
     35					struct xensnd_query_hw_param *hw_param_resp);
     36
     37int xen_snd_front_stream_prepare(struct xen_snd_front_evtchnl *evtchnl,
     38				 struct xen_front_pgdir_shbuf *shbuf,
     39				 u8 format, unsigned int channels,
     40				 unsigned int rate, u32 buffer_sz,
     41				 u32 period_sz);
     42
     43int xen_snd_front_stream_close(struct xen_snd_front_evtchnl *evtchnl);
     44
     45int xen_snd_front_stream_write(struct xen_snd_front_evtchnl *evtchnl,
     46			       unsigned long pos, unsigned long count);
     47
     48int xen_snd_front_stream_read(struct xen_snd_front_evtchnl *evtchnl,
     49			      unsigned long pos, unsigned long count);
     50
     51int xen_snd_front_stream_trigger(struct xen_snd_front_evtchnl *evtchnl,
     52				 int type);
     53
     54#endif /* __XEN_SND_FRONT_H */