1 /* $NetBSD: intr.h,v 1.4 2021/09/24 08:07:40 skrll Exp $ */
2
3 /*
4 * Copyright (c) 2001, 2003 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
38 #ifndef _EPOC32_INTR_H_
39 #define _EPOC32_INTR_H_
40
41 #ifdef _KERNEL
42
43 /* Interrupt priority "levels". */
44 #define IPL_NONE 0 /* nothing */
45 #define IPL_SOFTCLOCK 1 /* timeouts */
46 #define IPL_SOFTBIO 2 /* block I/O */
47 #define IPL_SOFTNET 3 /* software network interrupt */
48 #define IPL_SOFTSERIAL 4 /* software serial interrupt */
49 #define IPL_VM 5 /* memory allocation */
50 #define IPL_SCHED 6 /* clock interrupt */
51 #define IPL_HIGH 7 /* everything */
52
53 #define NIPL 8
54
55 /* Interrupt sharing types. */
56 #define IST_NONE 0 /* none */
57 #define IST_PULSE 1 /* pulsed */
58 #define IST_EDGE 2 /* edge-triggered */
59 #define IST_LEVEL 3 /* level-triggered */
60
61 #define __NEWINTR /* enables new hooks in cpu_fork()/cpu_switch() */
62
63 #define ARM_IRQ_HANDLER _C_LABEL(epoc32_irq_handler)
64
65 #ifndef _LOCORE
66
67 #include <sys/queue.h>
68
69 #define PIC_MAXSOURCES 16
70 #define PIC_MAXMAXSOURCES 16
71
72 #define _splraise pic_splraise
73 #define _spllower pic_spllower
74 #define splx pic_splx
75
76 #include <arm/pic/picvar.h>
77
78 typedef uint8_t ipl_t;
79 typedef struct {
80 ipl_t _ipl;
81 } ipl_cookie_t;
82
83 static inline ipl_cookie_t
makeiplcookie(ipl_t ipl)84 makeiplcookie(ipl_t ipl)
85 {
86
87 return (ipl_cookie_t){._ipl = ipl};
88 }
89
90 static inline int
splraiseipl(ipl_cookie_t icookie)91 splraiseipl(ipl_cookie_t icookie)
92 {
93
94 return _splraise(icookie._ipl);
95 }
96
97 #define spl0() _spllower(IPL_NONE)
98
99 #include <sys/spl.h>
100
101 #endif /* ! _LOCORE */
102
103 #endif /* _KERNEL */
104
105 #endif /* _EPOC32_INTR_H_ */
106