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/* $OpenBSD: beeper.c,v 1.1 2001/09/29 07:16:12 jason Exp $ */
/*
* Copyright (c) 2001 Jason L. Wright (jason@thought.net)
* All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jason L. Wright
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* Driver for beeper device on SUNW,Ultra-1-Engine.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/openfirm.h>
#include <sparc64/dev/ebusreg.h>
#include <sparc64/dev/ebusvar.h>
struct beeper_softc {
struct device sc_dev;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
};
#define BEEP_REG 0
int beeper_match __P((struct device *, void *, void *));
void beeper_attach __P((struct device *, struct device *, void *));
struct cfattach beeper_ca = {
sizeof(struct beeper_softc), beeper_match, beeper_attach
};
struct cfdriver beeper_cd = {
NULL, "beeper", DV_DULL
};
int
beeper_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct ebus_attach_args *ea = aux;
if (strcmp(ea->ea_name, "beeper") == 0)
return (1);
return (0);
}
void
beeper_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct beeper_softc *sc = (void *)self;
struct ebus_attach_args *ea = aux;
sc->sc_iot = ea->ea_bustag;
/* Use prom address if available, otherwise map it. */
if (ea->ea_nvaddrs)
sc->sc_ioh = (bus_space_handle_t)ea->ea_vaddrs[0];
else if (ebus_bus_map(sc->sc_iot, 0,
EBUS_PADDR_FROM_REG(&ea->ea_regs[0]),
ea->ea_regs[0].size,
BUS_SPACE_MAP_LINEAR,
0, &sc->sc_ioh) != 0) {
printf(": can't map register space\n");
return;
}
bus_space_write_4(sc->sc_iot, sc->sc_ioh, BEEP_REG, 1);
DELAY(0xc8 * 1000);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, BEEP_REG, 0);
printf("\n");
}
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