FreeBSD/Linux Kernel Cross Reference
sys/dev/isa/opl_isa.c
1 /* $NetBSD: opl_isa.c,v 1.9 2002/10/02 03:10:49 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lennart Augustsson.
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: opl_isa.c,v 1.9 2002/10/02 03:10:49 thorpej Exp $");
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
45 #include <sys/errno.h>
46 #include <sys/device.h>
47 #include <sys/malloc.h>
48 #include <sys/proc.h>
49 #include <sys/conf.h>
50 #include <sys/select.h>
51 #include <sys/audioio.h>
52 #include <sys/midiio.h>
53
54 #include <machine/bus.h>
55
56 #include <dev/audio_if.h>
57 #include <dev/midi_if.h>
58
59 #include <dev/ic/oplreg.h>
60 #include <dev/ic/oplvar.h>
61
62 #include <dev/isa/isavar.h>
63
64 #define OPL_SIZE 4
65
66 int opl_isa_match __P((struct device *, struct cfdata *, void *));
67 void opl_isa_attach __P((struct device *, struct device *, void *));
68
69 CFATTACH_DECL(opl_isa, sizeof(struct opl_softc),
70 opl_isa_match, opl_isa_attach, NULL, NULL);
71
72 int
73 opl_isa_match(parent, match, aux)
74 struct device *parent;
75 struct cfdata *match;
76 void *aux;
77 {
78 struct isa_attach_args *ia = aux;
79 struct opl_softc sc;
80 int r;
81
82 if (ia->ia_nio < 1)
83 return (0);
84
85 if (ISA_DIRECT_CONFIG(ia))
86 return (0);
87
88 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
89 return (0);
90
91 memset(&sc, 0, sizeof sc);
92 sc.iot = ia->ia_iot;
93 if (bus_space_map(sc.iot, ia->ia_io[0].ir_addr, OPL_SIZE, 0, &sc.ioh))
94 return (0);
95 r = opl_find(&sc);
96 bus_space_unmap(sc.iot, sc.ioh, OPL_SIZE);
97 if (r != 0) {
98 ia->ia_nio = 1;
99 ia->ia_io[0].ir_size = OPL_SIZE;
100
101 ia->ia_nirq = 0;
102 ia->ia_niomem = 0;
103 ia->ia_ndrq = 0;
104 }
105 return (r);
106 }
107
108 void
109 opl_isa_attach(parent, self, aux)
110 struct device *parent;
111 struct device *self;
112 void *aux;
113 {
114 struct opl_softc *sc = (struct opl_softc *)self;
115 struct isa_attach_args *ia = aux;
116
117 sc->iot = ia->ia_iot;
118
119 if (bus_space_map(sc->iot, ia->ia_io[0].ir_addr, OPL_SIZE,
120 0, &sc->ioh)) {
121 printf("opl_isa_attach: bus_space_map failed\n");
122 return;
123 }
124 sc->offs = 0;
125
126 opl_attach(sc);
127 }
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