1 /*- 2 * Copyright (c) 2017 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Landon Fuller under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _BHND_BHND_PRIVATE_H_ 33 #define _BHND_BHND_PRIVATE_H_ 34 35 #include <sys/param.h> 36 #include <sys/queue.h> 37 38 #include "bhnd_types.h" 39 40 /* 41 * Private bhnd(4) driver definitions. 42 */ 43 44 /** 45 * A bhnd(4) service registry entry. 46 */ 47 struct bhnd_service_entry { 48 device_t provider; /**< service provider */ 49 bhnd_service_t service; /**< service implemented */ 50 uint32_t flags; /**< entry flags (see BHND_SPF_*) */ 51 volatile u_int refs; /**< reference count; updated atomically 52 with only a shared lock held */ 53 54 STAILQ_ENTRY(bhnd_service_entry) link; 55 }; 56 57 #endif /* _BHND_BHND_PRIVATE_H_ */ 58