intr.h revision 1.10 1 /* $NetBSD: intr.h,v 1.10 2001/01/14 02:00:39 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the NetBSD
18 * Foundation, Inc. and its contributors.
19 * 4. Neither the name of The NetBSD Foundation nor the names of its
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #ifndef _ATARI_INTR_H_
37 #define _ATARI_INTR_H_
38
39 #define IPL_NONE 0 /* disable no interrupts */
40 #define IPL_BIO (PSL_S|PSL_IPL3) /* disable block I/O interrupts */
41 #define IPL_NET (PSL_S|PSL_IPL3) /* disable network interrupts */
42 #define IPL_TTY (PSL_S|PSL_IPL4) /* disable terminal interrupts */
43 #define IPL_CLOCK (PSL_S|PSL_IPL6) /* disable clock interrupts */
44 #define IPL_HIGH (PSL_S|PSL_IPL7) /* disable all interrupts */
45
46 #define IST_UNUSABLE -1 /* interrupt cannot be used */
47 #define IST_NONE 0 /* none (dummy) */
48 #define IST_PULSE 1 /* pulsed */
49 #define IST_EDGE 2 /* edge-triggered */
50 #define IST_LEVEL 3 /* level-triggered */
51
52 /*
53 * spl functions; all but spl0 are done in-line
54 */
55 #include <machine/psl.h>
56
57 /* spl0 requires checking for software interrupts */
58
59 #define splnone() spl0()
60 #define spllowersoftclock() spl1()
61
62 #define splsoftclock() splraise1()
63 #define splsoftnet() splraise1()
64
65 #define splbio() _splraise(PSL_S|PSL_IPL3)
66 #define splnet() _splraise(PSL_S|PSL_IPL3)
67 #define spltty() _splraise(PSL_S|PSL_IPL4)
68 #define splimp() _splraise(PSL_S|PSL_IPL4)
69 #define splvm() _splraise(PSL_S|PSL_IPL4)
70
71 #define spllpt() spltty()
72
73 #define splclock() splraise6()
74 #define splstatclock() splraise6()
75 #define splhigh() spl7()
76 #define splsched() spl7()
77 #define spllock() spl7()
78
79 #define splx(s) ((s) & PSL_IPL ? _spl(s) : spl0())
80
81 #ifdef _KERNEL
82 int spl0 __P((void));
83 #endif /* _KERNEL */
84
85 #endif /* _ATARI_INTR_H_ */
86