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
78typedef uint8_t ipl_t;
79typedef struct {
80 ipl_t _ipl;
81} ipl_cookie_t;
82
83static inline ipl_cookie_t
84makeiplcookie(ipl_t ipl)
85{
86
87 return (ipl_cookie_t){._ipl = ipl};
88}
89
90static inline int
91splraiseipl(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_ */