1 /* $NetBSD: clockport_common.c,v 1.1 2012/04/17 09:59:03 rkujawa Exp $ */
2
3 /*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Radoslaw Kujawa.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*
33 * Routines for generic clockports, shared among all backend drivers.
34 * TODO: implement clockport_intr_disestablish.
35 */
36
37 #include <sys/cdefs.h>
38
39 #include <sys/systm.h>
40 #include <sys/types.h>
41 #include <sys/bus.h>
42 #include <sys/kmem.h>
43
44 #include <machine/cpu.h>
45
46 #include <amiga/clockport/clockportvar.h>
47
48 #define CLOCKPORT_GENERIC_IPL 6
49
50 void *
clockport_generic_intr_establish(int (* isr)(void *),void * arg)51 clockport_generic_intr_establish(int (*isr)(void *), void *arg)
52 {
53 struct isr *sc_isr;
54
55 sc_isr = kmem_alloc(sizeof(struct isr), KM_SLEEP);
56
57 sc_isr->isr_intr = isr;
58 sc_isr->isr_arg = arg;
59 sc_isr->isr_ipl = CLOCKPORT_GENERIC_IPL;
60
61 add_isr(sc_isr);
62
63 return sc_isr;
64 }
65
66