2 * Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/i386/include/nexusvar.h,v 1.1 2000/09/28 00:37:31 peter Exp $
27 * $DragonFly: src/sys/platform/pc32/include/nexusvar.h,v 1.1 2004/01/13 18:31:58 joerg Exp $
30 #ifndef _MACHINE_NEXUSVAR_H_
31 #define _MACHINE_NEXUSVAR_H_ 1
33 enum nexus_device_ivars {
37 #define NEXUS_ACCESSOR(A, B, T) \
39 static __inline T nexus_get_ ## A(device_t dev) \
42 BUS_READ_IVAR(device_get_parent(dev), dev, NEXUS_IVAR_ ## B, &v); \
46 static __inline void nexus_set_ ## A(device_t dev, T t) \
48 uintptr_t v = (uintptr_t) t; \
49 BUS_WRITE_IVAR(device_get_parent(dev), dev, NEXUS_IVAR_ ## B, v); \
52 NEXUS_ACCESSOR(pcibus, PCIBUS, u_int32_t)
56 #endif /* !_MACHINE_NEXUSVAR_H_ */