/* 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_SHBUF_H #define __XEN_SND_FRONT_SHBUF_H #include <xen/grant_table.h> #include "xen_snd_front_evtchnl.h" struct xen_snd_front_shbuf { int num_grefs; grant_ref_t *grefs; u8 *directory; u8 *buffer; size_t buffer_sz; }; grant_ref_t xen_snd_front_shbuf_get_dir_start(struct xen_snd_front_shbuf *buf); int xen_snd_front_shbuf_alloc(struct xenbus_device *xb_dev, struct xen_snd_front_shbuf *buf, unsigned int buffer_sz); void xen_snd_front_shbuf_clear(struct xen_snd_front_shbuf *buf); void xen_snd_front_shbuf_free(struct xen_snd_front_shbuf *buf); #endif /* __XEN_SND_FRONT_SHBUF_H */