freebsd-dev/sys/dev/bhnd/bhnd_private.h

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/*-
* Copyright (c) 2017 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Landon Fuller under sponsorship from
* the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _BHND_BHND_PRIVATE_H_
#define _BHND_BHND_PRIVATE_H_
#include <sys/param.h>
#include <sys/queue.h>
#include "bhnd_types.h"
/*
* Private bhnd(4) driver definitions.
*/
/**
* A bhnd(4) service registry entry.
*/
struct bhnd_service_entry {
device_t provider; /**< service provider */
bhnd_service_t service; /**< service implemented */
uint32_t flags; /**< entry flags (see BHND_SPF_*) */
volatile u_int refs; /**< reference count; updated atomically
with only a shared lock held */
STAILQ_ENTRY(bhnd_service_entry) link;
};
#endif /* _BHND_BHND_PRIVATE_H_ */