1/*	$NetBSD: fiq.h,v 1.1 2001/12/20 01:20:23 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 2001 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *	This product includes software developed for the NetBSD Project by
20 *	Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 *    or promote products derived from this software without specific prior
23 *    written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 * $FreeBSD$
38 *
39 */
40
41#ifndef _MACHINE_FIQ_H_
42#define	_MACHINE_FIQ_H_
43
44#include <sys/queue.h>
45
46struct fiqregs {
47	u_int	fr_r8;			/* FIQ mode r8 */
48	u_int	fr_r9;			/* FIQ mode r9 */
49	u_int	fr_r10;			/* FIQ mode r10 */
50	u_int	fr_r11;			/* FIQ mode r11 */
51	u_int	fr_r12;			/* FIQ mode r12 */
52	u_int	fr_r13;			/* FIQ mode r13 */
53};
54
55struct fiqhandler {
56	TAILQ_ENTRY(fiqhandler) fh_list;/* link in the FIQ handler stack */
57	void	*fh_func;		/* FIQ handler routine */
58	size_t	fh_size;		/* size of FIQ handler */
59	int	fh_flags;		/* flags; see below */
60	struct fiqregs *fh_regs;	/* pointer to regs structure */
61};
62
63#define	FH_CANPUSH	0x01	/* can push this handler out of the way */
64
65int	fiq_claim(struct fiqhandler *);
66void	fiq_release(struct fiqhandler *);
67
68void	fiq_getregs(struct fiqregs *);
69void	fiq_setregs(struct fiqregs *);
70
71#endif /* _MACHINE_FIQ_H_ */
72