Annotation of sys/dev/eisa/bha_eisa.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: bha_eisa.c,v 1.4 2007/04/10 17:47:55 miod Exp $ */
2: /* $NetBSD: bha_eisa.c,v 1.16 1998/08/15 10:10:49 mycroft Exp $ */
3:
4: /*-
5: * Copyright (c) 1998 The NetBSD Foundation, Inc.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to The NetBSD Foundation
9: * by Charles M. Hannum.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the NetBSD
22: * Foundation, Inc. and its contributors.
23: * 4. Neither the name of The NetBSD Foundation nor the names of its
24: * contributors may be used to endorse or promote products derived
25: * from this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: */
39:
40: #include <sys/types.h>
41: #include <sys/param.h>
42: #include <sys/systm.h>
43: #include <sys/device.h>
44:
45: #include <machine/bus.h>
46: #include <machine/intr.h>
47:
48: #include <scsi/scsi_all.h>
49: #include <scsi/scsiconf.h>
50:
51: #include <dev/eisa/eisavar.h>
52: #include <dev/eisa/eisadevs.h>
53:
54: #include <dev/ic/bhareg.h>
55: #include <dev/ic/bhavar.h>
56:
57: #define BHA_EISA_SLOT_OFFSET 0x0c80
58: #define BHA_EISA_IOSIZE 0x0010
59: #define BHA_ISA_IOSIZE 0x0004
60:
61: #define BHA_EISA_IOCONF 0x0c
62:
63: int bha_eisa_address(bus_space_tag_t, bus_space_handle_t, int *);
64: int bha_eisa_match(struct device *, void *, void *);
65: void bha_eisa_attach(struct device *, struct device *, void *);
66:
67: struct cfattach bha_eisa_ca = {
68: sizeof(struct bha_softc), bha_eisa_match, bha_eisa_attach
69: };
70:
71: int
72: bha_eisa_address(iot, ioh, portp)
73: bus_space_tag_t iot;
74: bus_space_handle_t ioh;
75: int *portp;
76: {
77: int port;
78:
79: switch (bus_space_read_1(iot, ioh, BHA_EISA_IOCONF) & 0x07) {
80: case 0x00:
81: port = 0x330;
82: break;
83: case 0x01:
84: port = 0x334;
85: break;
86: case 0x02:
87: port = 0x230;
88: break;
89: case 0x03:
90: port = 0x234;
91: break;
92: case 0x04:
93: port = 0x130;
94: break;
95: case 0x05:
96: port = 0x134;
97: break;
98: default:
99: return (1);
100: }
101:
102: *portp = port;
103: return (0);
104: }
105:
106: /*
107: * Check the slots looking for a board we recognise
108: * If we find one, note its address (slot) and call
109: * the actual probe routine to check it out.
110: */
111: int
112: bha_eisa_match(parent, match, aux)
113: struct device *parent;
114: void *aux, *match;
115: {
116: struct eisa_attach_args *ea = aux;
117: bus_space_tag_t iot = ea->ea_iot;
118: bus_space_handle_t ioh, ioh2;
119: int port;
120: int rv;
121:
122: /* must match one of our known ID strings */
123: if (strcmp(ea->ea_idstring, "BUS4201") &&
124: strcmp(ea->ea_idstring, "BUS4202"))
125: return (0);
126:
127: if (bus_space_map(iot,
128: EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
129: 0, &ioh))
130: return (0);
131:
132: if (bha_eisa_address(iot, ioh, &port) ||
133: bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) {
134: bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
135: return (0);
136: }
137:
138: rv = bha_find(iot, ioh2, NULL);
139:
140: bus_space_unmap(iot, ioh2, BHA_ISA_IOSIZE);
141: bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
142:
143: return (rv);
144: }
145:
146: /*
147: * Attach all the sub-devices we can find
148: */
149: void
150: bha_eisa_attach(parent, self, aux)
151: struct device *parent, *self;
152: void *aux;
153: {
154: struct eisa_attach_args *ea = aux;
155: struct bha_softc *sc = (void *)self;
156: bus_space_tag_t iot = ea->ea_iot;
157: bus_space_handle_t ioh, ioh2;
158: int port;
159: struct bha_probe_data bpd;
160: eisa_chipset_tag_t ec = ea->ea_ec;
161: eisa_intr_handle_t ih;
162: const char *model, *intrstr;
163:
164: if (!strcmp(ea->ea_idstring, "BUS4201"))
165: model = EISA_PRODUCT_BUS4201;
166: else if (!strcmp(ea->ea_idstring, "BUS4202"))
167: model = EISA_PRODUCT_BUS4202;
168: else
169: model = "unknown model!";
170:
171: if (bus_space_map(iot,
172: EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
173: 0, &ioh)) {
174: printf(": could not map EISA slot\n");
175: return;
176: }
177:
178: if (bha_eisa_address(iot, ioh, &port) ||
179: bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) {
180: printf(": could not map ISA address\n");
181: return;
182: }
183:
184: sc->sc_iot = iot;
185: sc->sc_ioh = ioh2;
186: sc->sc_dmat = ea->ea_dmat;
187: if (!bha_find(iot, ioh2, &bpd)) {
188: printf(": bha_find failed\n");
189: return;
190: }
191:
192: sc->sc_dmaflags = 0;
193:
194: if (eisa_intr_map(ec, bpd.sc_irq, &ih)) {
195: printf(": couldn't map interrupt (%d)\n", bpd.sc_irq);
196: return;
197: }
198: intrstr = eisa_intr_string(ec, ih);
199: sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
200: bha_intr, sc, sc->sc_dev.dv_xname);
201: if (sc->sc_ih == NULL) {
202: printf(": couldn't establish interrupt");
203: if (intrstr != NULL)
204: printf(" at %s", intrstr);
205: printf("\n");
206: return;
207: }
208: printf(": %s, %s\n", intrstr, model);
209:
210: bha_attach(sc, &bpd);
211: }
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