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
65struct 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
71static int spkr_pcppi_probe(device_t, cfdata_t, void *);
72static void spkr_pcppi_attach(device_t, device_t, void *);
73static int spkr_pcppi_detach(device_t, int);
74static int spkr_pcppi_rescan(device_t, const char *, const int *);
75static void spkr_pcppi_childdet(device_t, device_t);
76
77CFATTACH_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 */
82static void
83spkr_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
92static int
93spkr_pcppi_probe(device_t parent, cfdata_t cf, void *aux)
94{
95	return 1;
96}
97
98static void
99spkr_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
114static int
115spkr_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
128static int
129spkr_pcppi_rescan(device_t self, const char *iattr, const int *locators)
130{
131
132	return spkr_rescan(self, iattr, locators);
133}
134
135static void
136spkr_pcppi_childdet(device_t self, device_t child)
137{
138
139	spkr_childdet(self, child);
140}
141