1 /* $OpenBSD: com_isapnp.c,v 1.2 2003/06/02 23:28:02 millert Exp $ */
2 /*
3 * Copyright (c) 1997 - 1999, Jason Downs. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name(s) of the author(s) nor the name OpenBSD
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
24 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29 /*-
30 * Copyright (c) 1993, 1994, 1995, 1996
31 * Charles M. Hannum. All rights reserved.
32 * Copyright (c) 1991 The Regents of the University of California.
33 * All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. Neither the name of the University nor the names of its contributors
44 * may be used to endorse or promote products derived from this software
45 * without specific prior written permission.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
57 * SUCH DAMAGE.
58 *
59 * @(#)com.c 7.5 (Berkeley) 5/16/91
60 */
61
62 #include <sys/param.h>
63 #include <sys/systm.h>
64 #include <sys/tty.h>
65 #include <sys/device.h>
66
67 #include <machine/intr.h>
68 #include <machine/bus.h>
69
70 #include <dev/ic/comreg.h>
71 #include <dev/ic/comvar.h>
72
73 #include <dev/isa/isavar.h>
74
75 #if NCOM_ISAPNP
76 struct cfattach com_isapnp_ca = {
77 sizeof(struct com_softc), comprobe, comattach
78 };
79 #endif
80
81 int com_isapnp_probe(struct device *, void *, void *);
82 int com_isapnp_attach(struct device *, struct device *, void *);
83
84 int
85 com_isapnp_probe(struct device *parent, void *match, void *aux)
86 {
87 struct isa_attach_args *ia = aux;
88 bus_space_tag_t iot;
89 bus_space_handle_t ioh;
90 int iobase;
91
92 iot = ia->ia_iot;
93 iobase = ia->ia_iobase;
94 ioh = ia->ia_ioh;
95
96 #ifdef KGDB
97 if (iobase == com_kgdb_addr)
98 return (1);
99 #endif
100 /* if it's in use as console, it's there. */
101 if (iobase == comconsaddr && !comconsattached)
102 return (1);
103
104 return comprobe1(iot, ioh);
105 }
106
107 int
108 com_isapnp_attach(struct device *parent, struct device *self, void *aux)
109 {
110 struct com_softc *sc = (void *)self;
111 int iobase;
112 int irq;
113 bus_space_tag_t iot;
114 bus_space_handle_t ioh;
115 struct isa_attach_args *ia = aux;
116
117 /*
118 * XXX should be broken out into functions for isa attach and
119 * XXX for commulti attach, with a helper function that contains
120 * XXX most of the interesting stuff.
121 */
122 sc->sc_hwflags = 0;
123 sc->sc_swflags = 0;
124
125 /*
126 * We're living on an isa.
127 */
128 iobase = ia->ia_iobase;
129 iot = ia->ia_iot;
130 /* No console support! */
131 ioh = ia->ia_ioh;
132
133 sc->sc_iot = iot;
134 sc->sc_ioh = ioh;
135 sc->sc_iobase = iobase;
136 sc->sc_frequency = COM_FREQ;
137
138 com_attach_subr(sc);
139
140 irq = ia->ia_irq;
141 if (irq != IRQUNK) {
142 #ifdef KGDB
143 if (iobase == com_kgdb_addr) {
144 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq,
145 IST_EDGE, IPL_HIGH, kgdbintr, sc,
146 sc->sc_dev.dv_xname);
147 } else {
148 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq,
149 IST_EDGE, IPL_TTY, comintr, sc,
150 sc->sc_dev.dv_xname);
151 }
152 #else
153 sc->sc_ih = isa_intr_establish(ia->ia_ic, irq,
154 IST_EDGE, IPL_TTY, comintr, sc,
155 sc->sc_dev.dv_xname);
156 #endif /* KGDB */
157 }
158 }