clockport_common.c revision 1.1.2.2 1 1.1.2.2 yamt /* $NetBSD: clockport_common.c,v 1.1.2.2 2012/05/23 10:07:40 yamt Exp $ */
2 1.1.2.2 yamt
3 1.1.2.2 yamt /*-
4 1.1.2.2 yamt * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 1.1.2.2 yamt * All rights reserved.
6 1.1.2.2 yamt *
7 1.1.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation
8 1.1.2.2 yamt * by Radoslaw Kujawa.
9 1.1.2.2 yamt *
10 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without
11 1.1.2.2 yamt * modification, are permitted provided that the following conditions
12 1.1.2.2 yamt * are met:
13 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright
14 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer.
15 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright
16 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the
17 1.1.2.2 yamt * documentation and/or other materials provided with the distribution.
18 1.1.2.2 yamt *
19 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.1.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.1.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.1.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.1.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.1.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.1.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.1.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.1.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.1.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.1.2.2 yamt * POSSIBILITY OF SUCH DAMAGE.
30 1.1.2.2 yamt */
31 1.1.2.2 yamt
32 1.1.2.2 yamt /*
33 1.1.2.2 yamt * Routines for generic clockports, shared among all backend drivers.
34 1.1.2.2 yamt * TODO: implement clockport_intr_disestablish.
35 1.1.2.2 yamt */
36 1.1.2.2 yamt
37 1.1.2.2 yamt #include <sys/cdefs.h>
38 1.1.2.2 yamt
39 1.1.2.2 yamt #include <sys/systm.h>
40 1.1.2.2 yamt #include <sys/types.h>
41 1.1.2.2 yamt #include <sys/bus.h>
42 1.1.2.2 yamt #include <sys/kmem.h>
43 1.1.2.2 yamt
44 1.1.2.2 yamt #include <machine/cpu.h>
45 1.1.2.2 yamt
46 1.1.2.2 yamt #include <amiga/clockport/clockportvar.h>
47 1.1.2.2 yamt
48 1.1.2.2 yamt #define CLOCKPORT_GENERIC_IPL 6
49 1.1.2.2 yamt
50 1.1.2.2 yamt void *
51 1.1.2.2 yamt clockport_generic_intr_establish(int (*isr)(void *), void *arg)
52 1.1.2.2 yamt {
53 1.1.2.2 yamt struct isr *sc_isr;
54 1.1.2.2 yamt
55 1.1.2.2 yamt sc_isr = kmem_alloc(sizeof(struct isr), KM_SLEEP);
56 1.1.2.2 yamt
57 1.1.2.2 yamt sc_isr->isr_intr = isr;
58 1.1.2.2 yamt sc_isr->isr_arg = arg;
59 1.1.2.2 yamt sc_isr->isr_ipl = CLOCKPORT_GENERIC_IPL;
60 1.1.2.2 yamt
61 1.1.2.2 yamt add_isr(sc_isr);
62 1.1.2.2 yamt
63 1.1.2.2 yamt return sc_isr;
64 1.1.2.2 yamt }
65 1.1.2.2 yamt
66