Annotation of sys/dev/isa/com_isapnp.c, Revision 1.1.1.1
1.1 nbrk 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: }
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