1 /* $OpenBSD: cy_isa.c,v 1.9 2002/09/15 21:30:25 art Exp $ */
2 /*
3 * Copyright (c) 1996 Timo Rossi.
4 * 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. Neither the name of the author nor the names of contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31 /*
32 * cy_isa.c
33 *
34 * Driver for Cyclades Cyclom-8/16/32 multiport serial cards
35 * (currently not tested with Cyclom-32 cards)
36 *
37 * Timo Rossi, 1996
38 */
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/device.h>
43
44 #include <machine/bus.h>
45
46 #include <dev/isa/isavar.h>
47 #include <dev/isa/isareg.h>
48
49 #include <dev/ic/cd1400reg.h>
50 #include <dev/ic/cyreg.h>
51
52 static int cy_isa_probe(struct device *, void *, void *);
53 void cy_isa_attach(struct device *, struct device *, void *);
54
55 struct cfattach cy_isa_ca = {
56 sizeof(struct cy_softc), cy_isa_probe, cy_isa_attach
57 };
58
59 int
60 cy_isa_probe(parent, match, aux)
61 struct device *parent;
62 void *match, *aux;
63 {
64 int card = ((struct device *)match)->dv_unit;
65 struct isa_attach_args *ia = aux;
66 bus_space_tag_t memt;
67 bus_space_handle_t memh;
68 int ret;
69
70 if (ia->ia_irq == IRQUNK) {
71 printf("cy%d error: interrupt not defined\n", card);
72 return (0);
73 }
74
75 memt = ia->ia_memt;
76 if (bus_space_map(memt, ia->ia_maddr, 0x2000, 0, &memh) != 0)
77 return (0);
78
79 ret = cy_probe_common(memt, memh, CY_BUSTYPE_ISA);
80 bus_space_unmap(memt, memh, 0x2000);
81 if (ret == 0)
82 return (0);
83
84 ia->ia_iosize = 0;
85 ia->ia_msize = 0x2000;
86 return (1);
87 }
88
89 void
90 cy_isa_attach(parent, self, aux)
91 struct device *parent, *self;
92 void *aux;
93 {
94 struct cy_softc *sc = (struct cy_softc *)self;
95 struct isa_attach_args *ia = aux;
96
97 sc->sc_bustype = CY_BUSTYPE_ISA;
98 sc->sc_memt = ia->ia_memt;
99
100 if (bus_space_map(ia->ia_memt, ia->ia_maddr, 0x2000, 0,
101 &sc->sc_memh) != 0)
102 return;
103
104 sc->sc_nr_cd1400s = cy_probe_common(sc->sc_memt, sc->sc_memh,
105 CY_BUSTYPE_ISA);
106
107 cy_attach(parent, self);
108
109 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq,
110 IST_EDGE, IPL_TTY, cy_intr, sc, sc->sc_dev.dv_xname);
111
112 if (sc->sc_ih == NULL)
113 panic("cy: couldn't establish interrupt");
114 }