1 /* $NetBSD: spkr_pcppi.c,v 1.14 2022/09/25 17:09:36 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 1990 Eric S. Raymond (esr@snark.thyrsus.com)
5 * Copyright (c) 1990 Andrew A. Chernov (ache@astral.msk.su)
6 * Copyright (c) 1990 Lennart Augustsson (lennart@augustsson.net)
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by Eric S. Raymond
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 /*
37 * spkr.c -- device driver for console speaker on 80386
38 *
39 * v1.1 by Eric S. Raymond (esr@snark.thyrsus.com) Feb 1990
40 * modified for 386bsd by Andrew A. Chernov <ache@astral.msk.su>
41 * 386bsd only clean version, all SYSV stuff removed
42 * use hz value from param.c
43 */
44
45 #include <sys/cdefs.h>
46 __KERNEL_RCSID(0, "$NetBSD: spkr_pcppi.c,v 1.14 2022/09/25 17:09:36 thorpej Exp $");
47
48 #include <sys/param.h>
49 #include <sys/systm.h>
50 #include <sys/kernel.h>
51 #include <sys/errno.h>
52 #include <sys/device.h>
53 #include <sys/uio.h>
54 #include <sys/proc.h>
55 #include <sys/ioctl.h>
56 #include <sys/conf.h>
57
58 #include <sys/bus.h>
59
60 #include <dev/isa/pcppivar.h>
61
62 #include <dev/spkrvar.h>
63 #include <dev/spkrio.h>
64
65 struct spkr_pcppi_softc {
66 struct spkr_softc sc_spkr;
67 pcppi_tag_t sc_pcppicookie;
68 void (*sc_bell_func)(pcppi_tag_t, int, int, int);
69 };
70
71 static int spkr_pcppi_probe(device_t, cfdata_t, void *);
72 static void spkr_pcppi_attach(device_t, device_t, void *);
73 static int spkr_pcppi_detach(device_t, int);
74 static int spkr_pcppi_rescan(device_t, const char *, const int *);
75 static void spkr_pcppi_childdet(device_t, device_t);
76
77 CFATTACH_DECL3_NEW(spkr_pcppi, sizeof(struct spkr_pcppi_softc),
78 spkr_pcppi_probe, spkr_pcppi_attach, spkr_pcppi_detach, NULL,
79 spkr_pcppi_rescan, spkr_pcppi_childdet, 0);
80
81 /* emit tone of frequency hz for given number of ticks */
82 static void
spkr_pcppi_tone(device_t self,u_int xhz,u_int ticks)83 spkr_pcppi_tone(device_t self, u_int xhz, u_int ticks)
84 {
85 #ifdef SPKRDEBUG
86 device_printf(self, "%s: %u %u\n", __func__, xhz, ticks);
87 #endif /* SPKRDEBUG */
88 struct spkr_pcppi_softc *sc = device_private(self);
89 (*sc->sc_bell_func)(sc->sc_pcppicookie, xhz, ticks, PCPPI_BELL_SLEEP);
90 }
91
92 static int
spkr_pcppi_probe(device_t parent,cfdata_t cf,void * aux)93 spkr_pcppi_probe(device_t parent, cfdata_t cf, void *aux)
94 {
95 return 1;
96 }
97
98 static void
spkr_pcppi_attach(device_t parent,device_t self,void * aux)99 spkr_pcppi_attach(device_t parent, device_t self, void *aux)
100 {
101 struct pcppi_attach_args *pa = aux;
102 struct spkr_pcppi_softc *sc = device_private(self);
103
104 aprint_naive("\n");
105 aprint_normal(": PC Speaker\n");
106
107 sc->sc_pcppicookie = pa->pa_cookie;
108 sc->sc_bell_func = pa->pa_bell_func;
109 spkr_attach(self, spkr_pcppi_tone);
110 if (!pmf_device_register(self, NULL, NULL))
111 aprint_error_dev(self, "couldn't establish power handler\n");
112 }
113
114 static int
spkr_pcppi_detach(device_t self,int flags)115 spkr_pcppi_detach(device_t self, int flags)
116 {
117 struct spkr_pcppi_softc *sc = device_private(self);
118 int error;
119
120 if ((error = spkr_detach(self, flags)) != 0)
121 return error;
122
123 sc->sc_pcppicookie = NULL;
124 pmf_device_deregister(self);
125 return 0;
126 }
127
128 static int
spkr_pcppi_rescan(device_t self,const char * iattr,const int * locators)129 spkr_pcppi_rescan(device_t self, const char *iattr, const int *locators)
130 {
131
132 return spkr_rescan(self, iattr, locators);
133 }
134
135 static void
spkr_pcppi_childdet(device_t self,device_t child)136 spkr_pcppi_childdet(device_t self, device_t child)
137 {
138
139 spkr_childdet(self, child);
140 }
141