1 /* $NetBSD: bha_eisa.c,v 1.24 2004/08/23 06:03:19 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #include <sys/cdefs.h>
40 __KERNEL_RCSID(0, "$NetBSD: bha_eisa.c,v 1.24 2004/08/23 06:03:19 thorpej Exp $");
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/device.h>
45
46 #include <machine/bus.h>
47 #include <machine/intr.h>
48
49 #include <dev/scsipi/scsipi_all.h>
50 #include <dev/scsipi/scsiconf.h>
51
52 #include <dev/eisa/eisavar.h>
53 #include <dev/eisa/eisadevs.h>
54
55 #include <dev/ic/bhareg.h>
56 #include <dev/ic/bhavar.h>
57
58 #define BHA_EISA_SLOT_OFFSET 0x0c80
59 #define BHA_EISA_IOSIZE 0x0010
60 #define BHA_ISA_IOSIZE 0x0004
61
62 #define BHA_EISA_IOCONF 0x0c
63
64 static int bha_eisa_address(bus_space_tag_t, bus_space_handle_t, int *);
65 static int bha_eisa_match(struct device *, struct cfdata *, void *);
66 static void bha_eisa_attach(struct device *, struct device *, void *);
67
68 CFATTACH_DECL(bha_eisa, sizeof(struct bha_softc),
69 bha_eisa_match, bha_eisa_attach, NULL, NULL);
70
71 static int
72 bha_eisa_address(bus_space_tag_t iot, bus_space_handle_t ioh, int *portp)
73 {
74 int port;
75
76 switch (bus_space_read_1(iot, ioh, BHA_EISA_IOCONF) & 0x07) {
77 case 0x00:
78 port = 0x330;
79 break;
80 case 0x01:
81 port = 0x334;
82 break;
83 case 0x02:
84 port = 0x230;
85 break;
86 case 0x03:
87 port = 0x234;
88 break;
89 case 0x04:
90 port = 0x130;
91 break;
92 case 0x05:
93 port = 0x134;
94 break;
95 default:
96 return (1);
97 }
98
99 *portp = port;
100 return (0);
101 }
102
103 /*
104 * Check the slots looking for a board we recognise
105 * If we find one, note it's address (slot) and call
106 * the actual probe routine to check it out.
107 */
108 static int
109 bha_eisa_match(struct device *parent, struct cfdata *match, void *aux)
110 {
111 struct eisa_attach_args *ea = aux;
112 bus_space_tag_t iot = ea->ea_iot;
113 bus_space_handle_t ioh, ioh2;
114 int port;
115 int rv;
116
117 /* must match one of our known ID strings */
118 if (strcmp(ea->ea_idstring, "BUS4201") &&
119 strcmp(ea->ea_idstring, "BUS4202"))
120 return (0);
121
122 if (bus_space_map(iot,
123 EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
124 0, &ioh))
125 return (0);
126
127 if (bha_eisa_address(iot, ioh, &port) ||
128 bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) {
129 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
130 return (0);
131 }
132
133 rv = bha_find(iot, ioh2);
134
135 bus_space_unmap(iot, ioh2, BHA_ISA_IOSIZE);
136 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
137
138 return (rv);
139 }
140
141 /*
142 * Attach all the sub-devices we can find
143 */
144 static void
145 bha_eisa_attach(struct device *parent, struct device *self, void *aux)
146 {
147 struct eisa_attach_args *ea = aux;
148 struct bha_softc *sc = (void *)self;
149 bus_space_tag_t iot = ea->ea_iot;
150 bus_space_handle_t ioh, ioh2;
151 int port;
152 struct bha_probe_data bpd;
153 eisa_chipset_tag_t ec = ea->ea_ec;
154 eisa_intr_handle_t ih;
155 const char *model, *intrstr;
156
157 if (!strcmp(ea->ea_idstring, "BUS4201"))
158 model = EISA_PRODUCT_BUS4201;
159 else if (!strcmp(ea->ea_idstring, "BUS4202"))
160 model = EISA_PRODUCT_BUS4202;
161 else
162 model = "unknown model!";
163 printf(": %s\n", model);
164
165 if (bus_space_map(iot,
166 EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
167 0, &ioh))
168 panic("bha_eisa_attach: could not map EISA slot");
169
170 if (bha_eisa_address(iot, ioh, &port) ||
171 bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2))
172 panic("bha_eisa_attach: could not map ISA address");
173
174 sc->sc_iot = iot;
175 sc->sc_ioh = ioh2;
176 sc->sc_dmat = ea->ea_dmat;
177 if (!bha_probe_inquiry(iot, ioh2, &bpd))
178 panic("bha_eisa_attach failed");
179
180 sc->sc_dmaflags = 0;
181
182 if (eisa_intr_map(ec, bpd.sc_irq, &ih)) {
183 printf("%s: couldn't map interrupt (%d)\n",
184 sc->sc_dev.dv_xname, bpd.sc_irq);
185 return;
186 }
187 intrstr = eisa_intr_string(ec, ih);
188 sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
189 bha_intr, sc);
190 if (sc->sc_ih == NULL) {
191 printf("%s: couldn't establish interrupt",
192 sc->sc_dev.dv_xname);
193 if (intrstr != NULL)
194 printf(" at %s", intrstr);
195 printf("\n");
196 return;
197 }
198 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
199
200 bha_attach(sc);
201 }
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