NetBSD-5.0.2/sys/arch/arm/footbridge/isa/sysbeep_isa.c

/*	$NetBSD: sysbeep_isa.c,v 1.6 2008/04/28 20:23:14 martin Exp $	*/

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Mark Brinicombe of Causality Limited.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sysbeep_isa.c,v 1.6 2008/04/28 20:23:14 martin Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/isa/isavar.h>

#include <dev/isa/pcppivar.h>

/* Prototypes */
int sysbeep_isa_match __P((struct device *parent, struct cfdata *cf, void *aux));
void sysbeep_isa_attach __P((struct device *parent, struct device *self, void *aux));
void sysbeep_isa __P((int pitch, int period));

/* device attach structure */
CFATTACH_DECL(sysbeep_isa, sizeof(struct device),
    sysbeep_isa_match, sysbeep_isa_attach, NULL, NULL);

static int ppi_attached;
static pcppi_tag_t ppicookie;

int
sysbeep_isa_match(parent, match, aux)
	struct device *parent;
	struct cfdata *match;
	void *aux;
{
	return (!ppi_attached);
}

void
sysbeep_isa_attach(parent, self, aux)
	struct device *parent, *self;
	void *aux;
{
	printf("\n");

	ppicookie = ((struct pcppi_attach_args *)aux)->pa_cookie;
	ppi_attached = 1;
}

void
sysbeep(pitch, period)
	int pitch, period;
{
	if (ppi_attached)
		pcppi_bell(ppicookie, pitch, period, 0);
}