1 /* $NetBSD: isa_machdep_common.c,v 1.7 2011/06/18 06:41:43 matt Exp $ */
2
3 /*-
4 * Copyright (c) 2007 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Tim Rightnour
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 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: isa_machdep_common.c,v 1.7 2011/06/18 06:41:43 matt Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/syslog.h>
38 #include <sys/device.h>
39 #include <sys/intr.h>
40
41 #include <machine/pio.h>
42
43 #include <dev/isa/isareg.h>
44 #include <dev/isa/isavar.h>
45
46 #define IO_ELCR1 0x4d0
47 #define IO_ELCR2 0x4d1
48
49 const struct evcnt *
genppc_isa_intr_evcnt(isa_chipset_tag_t ic,int irq)50 genppc_isa_intr_evcnt(isa_chipset_tag_t ic, int irq)
51 {
52
53 /* XXX for now, no evcnt parent reported */
54 return NULL;
55 }
56
57 /*
58 * Set up an interrupt handler to start being called.
59 */
60 void *
genppc_isa_intr_establish(isa_chipset_tag_t ic,int irq,int type,int level,int (* ih_fun)(void *),void * ih_arg)61 genppc_isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, int level,
62 int (*ih_fun)(void *), void *ih_arg)
63 {
64
65 return (void *)intr_establish(irq, type, level, ih_fun, ih_arg);
66 }
67
68 /*
69 * Deregister an interrupt handler.
70 */
71 void
genppc_isa_intr_disestablish(isa_chipset_tag_t ic,void * arg)72 genppc_isa_intr_disestablish(isa_chipset_tag_t ic, void *arg)
73 {
74
75 intr_disestablish(arg);
76 }
77
78 void
genppc_isa_attach_hook(device_t parent,device_t self,struct isabus_attach_args * iba)79 genppc_isa_attach_hook(device_t parent, device_t self,
80 struct isabus_attach_args *iba)
81 {
82
83 /* Nothing to do. */
84 }
85
86 void
genppc_isa_detach_hook(isa_chipset_tag_t ic,device_t self)87 genppc_isa_detach_hook(isa_chipset_tag_t ic, device_t self)
88 {
89
90 /* Nothing to do. */
91 }
92