eisa_machdep.c revision 1.4 
1/*	$NetBSD: eisa_machdep.c,v 1.4 1996/10/13 03:19:38 christos Exp $	*/
2
3/*
4 * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *      This product includes software developed by Christopher G. Demetriou
17 *	for the NetBSD Project.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Machine-specific functions for EISA autoconfiguration.
35 */
36
37#include <sys/types.h>
38#include <sys/param.h>
39#include <sys/time.h>
40#include <sys/systm.h>
41#include <sys/errno.h>
42#include <sys/device.h>
43
44#include <i386/isa/icu.h>
45#include <dev/isa/isavar.h>
46#include <dev/eisa/eisavar.h>
47
48void
49eisa_attach_hook(parent, self, eba)
50	struct device *parent, *self;
51	struct eisabus_attach_args *eba;
52{
53
54	/* Nothing to do */
55}
56
57int
58eisa_maxslots(ec)
59	eisa_chipset_tag_t ec;
60{
61
62	/*
63	 * Always try 16 slots.
64	 */
65	return (16);
66}
67
68int
69eisa_intr_map(ec, irq, ihp)
70	eisa_chipset_tag_t ec;
71	u_int irq;
72	eisa_intr_handle_t *ihp;
73{
74
75	if (irq >= ICU_LEN) {
76		printf("eisa_intr_map: bad IRQ %d\n", irq);
77		*ihp = -1;
78		return 1;
79	}
80	if (irq == 2) {
81		printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
82		irq = 9;
83	}
84
85	*ihp = irq;
86	return 0;
87}
88
89const char *
90eisa_intr_string(ec, ih)
91	eisa_chipset_tag_t ec;
92	eisa_intr_handle_t ih;
93{
94	static char irqstr[8];		/* 4 + 2 + NULL + sanity */
95
96	if (ih == 0 || ih >= ICU_LEN || ih == 2)
97		panic("eisa_intr_string: bogus handle 0x%x\n", ih);
98
99	sprintf(irqstr, "irq %d", ih);
100	return (irqstr);
101
102}
103
104void *
105eisa_intr_establish(ec, ih, type, level, func, arg)
106	eisa_chipset_tag_t ec;
107	eisa_intr_handle_t ih;
108	int type, level, (*func) __P((void *));
109	void *arg;
110{
111
112	if (ih == 0 || ih >= ICU_LEN || ih == 2)
113		panic("eisa_intr_establish: bogus handle 0x%x\n", ih);
114
115	return isa_intr_establish(NULL, ih, type, level, func, arg);
116}
117
118void
119eisa_intr_disestablish(ec, cookie)
120	eisa_chipset_tag_t ec;
121	void *cookie;
122{
123
124	return isa_intr_disestablish(NULL, cookie);
125}
126