1 /* $OpenBSD: eisa_machdep.c,v 1.18 2021/03/11 11:16:57 jsg Exp $ */
2 /* $NetBSD: eisa_machdep.c,v 1.10.22.2 2000/06/25 19:36:58 sommerfeld Exp $ */
3
4 /*-
5 * Copyright (c) 1997 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
10 * NASA Ames Research Center.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 /*
35 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. All advertising materials mentioning features or use of this software
46 * must display the following acknowledgement:
47 * This product includes software developed by Christopher G. Demetriou
48 * for the NetBSD Project.
49 * 4. The name of the author may not be used to endorse or promote products
50 * derived from this software without specific prior written permission
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 */
63
64 /*
65 * Machine-specific functions for EISA autoconfiguration.
66 */
67
68 #include <sys/param.h>
69 #include <sys/time.h>
70 #include <sys/systm.h>
71 #include <sys/errno.h>
72 #include <sys/device.h>
73
74 #include <machine/bus.h>
75 #include <machine/i8259.h>
76
77 #include <dev/isa/isavar.h>
78 #include <dev/eisa/eisavar.h>
79
80 /*
81 * EISA doesn't have any special needs; just use the generic versions
82 * of these functions.
83 */
84 struct bus_dma_tag eisa_bus_dma_tag = {
85 NULL, /* _cookie */
86 _bus_dmamap_create,
87 _bus_dmamap_destroy,
88 _bus_dmamap_load,
89 _bus_dmamap_load_mbuf,
90 _bus_dmamap_load_uio,
91 _bus_dmamap_load_raw,
92 _bus_dmamap_unload,
93 _bus_dmamap_sync,
94 _bus_dmamem_alloc,
95 _bus_dmamem_alloc_range,
96 _bus_dmamem_free,
97 _bus_dmamem_map,
98 _bus_dmamem_unmap,
99 _bus_dmamem_mmap,
100 };
101
102 void
eisa_attach_hook(struct device * parent,struct device * self,struct eisabus_attach_args * eba)103 eisa_attach_hook(struct device *parent, struct device *self,
104 struct eisabus_attach_args *eba)
105 {
106 /* Nothing to do */
107 }
108
109 int
eisa_maxslots(eisa_chipset_tag_t ec)110 eisa_maxslots(eisa_chipset_tag_t ec)
111 {
112 /*
113 * Always try 16 slots.
114 */
115 return (16);
116 }
117
118 int
eisa_intr_map(eisa_chipset_tag_t ec,u_int irq,eisa_intr_handle_t * ihp)119 eisa_intr_map(eisa_chipset_tag_t ec, u_int irq, eisa_intr_handle_t *ihp)
120 {
121 if (irq >= ICU_LEN) {
122 printf("eisa_intr_map: bad IRQ %d\n", irq);
123 *ihp = -1;
124 return (1);
125 }
126 if (irq == 2) {
127 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
128 irq = 9;
129 }
130
131 *ihp = irq;
132 return (0);
133 }
134
135 const char *
eisa_intr_string(eisa_chipset_tag_t ec,eisa_intr_handle_t ih)136 eisa_intr_string(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
137 {
138 static char irqstr[64];
139
140 if (ih == 0 || (ih & 0xff) >= ICU_LEN || ih == 2)
141 panic("eisa_intr_string: bogus handle 0x%x", ih);
142
143 snprintf(irqstr, sizeof irqstr, "irq %d", ih);
144 return (irqstr);
145
146 }
147
148 void *
eisa_intr_establish(eisa_chipset_tag_t ec,eisa_intr_handle_t ih,int type,int level,int (* func)(void *),void * arg,char * what)149 eisa_intr_establish(eisa_chipset_tag_t ec, eisa_intr_handle_t ih, int type,
150 int level, int (*func)(void *), void *arg, char *what)
151 {
152 if (ih == 0 || ih >= ICU_LEN || ih == 2)
153 panic("eisa_intr_establish: bogus handle 0x%x", ih);
154
155 return (isa_intr_establish(NULL, ih, type, level, func, arg, what));
156 }
157
158 void
eisa_intr_disestablish(eisa_chipset_tag_t ec,void * cookie)159 eisa_intr_disestablish(eisa_chipset_tag_t ec, void *cookie)
160 {
161 return (isa_intr_disestablish(NULL, cookie));
162 }
163