1 /* $OpenBSD: eisa_machdep.c,v 1.10 2006/09/19 11:06:33 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 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the NetBSD
23 * Foundation, Inc. and its contributors.
24 * 4. Neither the name of The NetBSD Foundation nor the names of its
25 * contributors may be used to endorse or promote products derived
26 * from this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
38 * POSSIBILITY OF SUCH DAMAGE.
39 */
40
41 /*
42 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgement:
54 * This product includes software developed by Christopher G. Demetriou
55 * for the NetBSD Project.
56 * 4. The name of the author may not be used to endorse or promote products
57 * derived from this software without specific prior written permission
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
64 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
65 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
66 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
67 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
68 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
69 */
70
71 /*
72 * Machine-specific functions for EISA autoconfiguration.
73 */
74
75 #include <sys/types.h>
76 #include <sys/param.h>
77 #include <sys/time.h>
78 #include <sys/systm.h>
79 #include <sys/errno.h>
80 #include <sys/device.h>
81
82 #define _I386_BUS_DMA_PRIVATE
83 #include <machine/bus.h>
84 #include <machine/i8259.h>
85
86 #include <dev/isa/isavar.h>
87 #include <dev/eisa/eisavar.h>
88
89 /*
90 * EISA doesn't have any special needs; just use the generic versions
91 * of these funcions.
92 */
93 struct i386_bus_dma_tag eisa_bus_dma_tag = {
94 NULL, /* _cookie */
95 _bus_dmamap_create,
96 _bus_dmamap_destroy,
97 _bus_dmamap_load,
98 _bus_dmamap_load_mbuf,
99 _bus_dmamap_load_uio,
100 _bus_dmamap_load_raw,
101 _bus_dmamap_unload,
102 NULL, /* _dmamap_sync */
103 _bus_dmamem_alloc,
104 _bus_dmamem_free,
105 _bus_dmamem_map,
106 _bus_dmamem_unmap,
107 _bus_dmamem_mmap,
108 };
109
110 void
111 eisa_attach_hook(struct device *parent, struct device *self,
112 struct eisabus_attach_args *eba)
113 {
114 /* Nothing to do */
115 }
116
117 int
118 eisa_maxslots(eisa_chipset_tag_t ec)
119 {
120 /*
121 * Always try 16 slots.
122 */
123 return (16);
124 }
125
126 int
127 eisa_intr_map(eisa_chipset_tag_t ec, u_int irq, eisa_intr_handle_t *ihp)
128 {
129 #if NIOAPIC > 0
130 struct mp_intr_map *mip;
131 #endif
132
133 if (irq >= ICU_LEN) {
134 printf("eisa_intr_map: bad IRQ %d\n", irq);
135 *ihp = -1;
136 return (1);
137 }
138 if (irq == 2) {
139 printf("eisa_intr_map: changed IRQ 2 to IRQ 9\n");
140 irq = 9;
141 }
142
143 #if NIOAPIC > 0
144 if (mp_busses != NULL) {
145 /*
146 * Assumes 1:1 mapping between PCI bus numbers and
147 * the numbers given by the MP bios.
148 * XXX Is this a valid assumption?
149 */
150
151 for (mip = mp_busses[bus].mb_intrs; mip != NULL;
152 mip = mip->next) {
153 if (mip->bus_pin == irq) {
154 *ihp = mip->ioapic_ih | irq;
155 return (0);
156 }
157 }
158 if (mip == NULL)
159 printf("eisa_intr_map: no MP mapping found\n");
160 }
161 #endif
162
163 *ihp = irq;
164 return (0);
165 }
166
167 const char *
168 eisa_intr_string(eisa_chipset_tag_t ec, eisa_intr_handle_t ih)
169 {
170 static char irqstr[64];
171
172 if (ih == 0 || (ih & 0xff) >= ICU_LEN || ih == 2)
173 panic("eisa_intr_string: bogus handle 0x%x", ih);
174
175 #if NIOAPIC > 0
176 if (ih & APIC_INT_VIA_APIC) {
177 snprintf(irqstr, sizeof irqstr, "apic %d int %d (irq %d)",
178 APIC_IRQ_APIC(ih), APIC_IRQ_PIN(ih), ih & 0xff);
179 return (irqstr);
180 }
181 #endif
182
183 snprintf(irqstr, sizeof irqstr, "irq %d", ih);
184 return (irqstr);
185
186 }
187
188 void *
189 eisa_intr_establish(eisa_chipset_tag_t ec, eisa_intr_handle_t ih, int type,
190 int level, int (*func)(void *), void *arg, char *what)
191 {
192 #if NIOAPIC > 0
193 if (ih != -1) {
194 if (ih != -1 && (ih & APIC_INT_VIA_APIC)) {
195 return (apic_intr_establish(ih, type, level, func, arg,
196 what));
197 }
198 }
199 #endif
200 if (ih == 0 || ih >= ICU_LEN || ih == 2)
201 panic("eisa_intr_establish: bogus handle 0x%x", ih);
202
203 return (isa_intr_establish(NULL, ih, type, level, func, arg, what));
204 }
205
206 void
207 eisa_intr_disestablish(eisa_chipset_tag_t ec, void *cookie)
208 {
209 return (isa_intr_disestablish(NULL, cookie));
210 }