isabeep.c revision 1.2 
1/*	$NetBSD: isabeep.c,v 1.2 2000/06/29 07:47:52 mrg Exp $	*/
2
3/*
4 * Copyright (c) 1995, 1996 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22 *  School of Computer Science
23 *  Carnegie Mellon University
24 *  Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30#include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
31
32#include <sys/types.h>
33#include <sys/param.h>
34#include <sys/time.h>
35#include <sys/systm.h>
36#include <sys/errno.h>
37#include <sys/device.h>
38#include <uvm/uvm_extern.h>
39
40#include <dev/isa/isavar.h>
41
42#include "pcppi.h"
43#if NPCPPI > 0
44#include <dev/isa/pcppivar.h>
45
46int isabeepmatch __P((struct device *, struct cfdata *, void *));
47void isabeepattach __P((struct device *, struct device *, void *));
48
49struct cfattach isabeep_ca = {
50	sizeof(struct device), isabeepmatch, isabeepattach
51};
52
53static int ppi_attached;
54static pcppi_tag_t ppicookie;
55
56int
57isabeepmatch(parent, match, aux)
58	struct device *parent;
59	struct cfdata *match;
60	void *aux;
61{
62	return (!ppi_attached);
63}
64
65void
66isabeepattach(parent, self, aux)
67	struct device *parent, *self;
68	void *aux;
69{
70	printf("\n");
71
72	ppicookie = ((struct pcppi_attach_args *)aux)->pa_cookie;
73	ppi_attached = 1;
74}
75#endif
76
77void
78isabeep(pitch, period)
79	int pitch, period;
80{
81#if NPCPPI > 0
82	if (ppi_attached)
83		pcppi_bell(ppicookie, pitch, period, 0);
84#endif
85}
86