eisa_machdep.c revision 1.5 
1/*	$NetBSD: eisa_machdep.c,v 1.5 1996/10/21 23:12:56 thorpej 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#include <sys/extent.h>
44
45#include <i386/isa/icu.h>
46#include <dev/isa/isareg.h>
47#include <dev/isa/isavar.h>
48#include <dev/eisa/eisavar.h>
49
50void
51eisa_attach_hook(parent, self, eba)
52	struct device *parent, *self;
53	struct eisabus_attach_args *eba;
54{
55
56	/* Nothing to do */
57}
58
59int
60eisa_maxslots(ec)
61	eisa_chipset_tag_t ec;
62{
63
64	/*
65	 * Always try 16 slots.
66	 */
67	return (16);
68}
69
70int
71eisa_intr_map(ec, irq, ihp)
72	eisa_chipset_tag_t ec;
73	u_int irq;
74	eisa_intr_handle_t *ihp;
75{
76
77	if (irq >= ICU_LEN) {
78		printf("eisa_intr_map: bad IRQ %d\n", irq);
79		*ihp = -1;
80		return 1;
81	}
82	if (irq == 2) {
83		printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
84		irq = 9;
85	}
86
87	*ihp = irq;
88	return 0;
89}
90
91const char *
92eisa_intr_string(ec, ih)
93	eisa_chipset_tag_t ec;
94	eisa_intr_handle_t ih;
95{
96	static char irqstr[8];		/* 4 + 2 + NULL + sanity */
97
98	if (ih == 0 || ih >= ICU_LEN || ih == 2)
99		panic("eisa_intr_string: bogus handle 0x%x\n", ih);
100
101	sprintf(irqstr, "irq %d", ih);
102	return (irqstr);
103
104}
105
106void *
107eisa_intr_establish(ec, ih, type, level, func, arg)
108	eisa_chipset_tag_t ec;
109	eisa_intr_handle_t ih;
110	int type, level, (*func) __P((void *));
111	void *arg;
112{
113
114	if (ih == 0 || ih >= ICU_LEN || ih == 2)
115		panic("eisa_intr_establish: bogus handle 0x%x\n", ih);
116
117	return isa_intr_establish(NULL, ih, type, level, func, arg);
118}
119
120void
121eisa_intr_disestablish(ec, cookie)
122	eisa_chipset_tag_t ec;
123	void *cookie;
124{
125
126	return isa_intr_disestablish(NULL, cookie);
127}
128
129int
130eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp)
131	bus_space_tag_t t;
132	bus_size_t size, align;
133	bus_addr_t boundary;
134	int cacheable;
135	bus_addr_t *addrp;
136	bus_space_handle_t *bahp;
137{
138	extern struct extent *iomem_ex;
139
140	/*
141	 * Allocate physical address space after the ISA hole.
142	 */
143	return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align,
144	    boundary, cacheable, addrp, bahp);
145}
146
147void
148eisa_mem_free(t, bah, size)
149	bus_space_tag_t t;
150	bus_space_handle_t bah;
151	bus_size_t size;
152{
153
154	bus_space_free(t, bah, size);
155}
156