1 /* $NetBSD: opl_isa.c,v 1.23 2022/09/24 23:21:59 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 1999, 2008 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, and by Andrew Doran.
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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: opl_isa.c,v 1.23 2022/09/24 23:21:59 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/errno.h>
39 #include <sys/device.h>
40 #include <sys/proc.h>
41 #include <sys/conf.h>
42 #include <sys/select.h>
43 #include <sys/audioio.h>
44 #include <sys/midiio.h>
45
46 #include <sys/bus.h>
47
48 #include <dev/audio/audio_if.h>
49 #include <dev/midi_if.h>
50
51 #include <dev/ic/oplreg.h>
52 #include <dev/ic/oplvar.h>
53
54 #include <dev/isa/isavar.h>
55
56 #define OPL_SIZE 4
57
58 int opl_isa_match(device_t, cfdata_t, void *);
59 void opl_isa_attach(device_t, device_t, void *);
60
61 struct opl_isa_softc {
62 struct opl_softc sc_opl;
63 kmutex_t sc_lock;
64 };
65
66 CFATTACH_DECL_NEW(opl_isa, sizeof(struct opl_isa_softc),
67 opl_isa_match, opl_isa_attach, NULL, NULL);
68
69 int
opl_isa_match(device_t parent,cfdata_t match,void * aux)70 opl_isa_match(device_t parent, cfdata_t match, void *aux)
71 {
72 struct isa_attach_args *ia = aux;
73 bus_space_handle_t ioh;
74 int r;
75
76 if (ia->ia_nio < 1)
77 return (0);
78
79 if (ISA_DIRECT_CONFIG(ia))
80 return (0);
81
82 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
83 return (0);
84
85 if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, OPL_SIZE, 0, &ioh))
86 return (0);
87 r = opl_match(ia->ia_iot, ioh, 0);
88 bus_space_unmap(ia->ia_iot, ioh, OPL_SIZE);
89 if (r != 0) {
90 ia->ia_nio = 1;
91 ia->ia_io[0].ir_size = OPL_SIZE;
92
93 ia->ia_nirq = 0;
94 ia->ia_niomem = 0;
95 ia->ia_ndrq = 0;
96 }
97 return (r);
98 }
99
100 void
opl_isa_attach(device_t parent,device_t self,void * aux)101 opl_isa_attach(device_t parent, device_t self, void *aux)
102 {
103 struct opl_softc *sc = device_private(self);
104 struct opl_isa_softc *isa = device_private(self);
105 struct isa_attach_args *ia = aux;
106
107 sc->dev = self;
108 sc->iot = ia->ia_iot;
109
110 if (bus_space_map(sc->iot, ia->ia_io[0].ir_addr, OPL_SIZE,
111 0, &sc->ioh)) {
112 aprint_error("opl_isa_attach: bus_space_map failed\n");
113 return;
114 }
115 sc->offs = 0;
116 sc->lock = &isa->sc_lock;
117 mutex_init(&isa->sc_lock, MUTEX_DEFAULT, IPL_NONE);
118
119 opl_attach(sc);
120 }
121