NetBSD/sys/arch/i386/isa/joy_isa.c

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/* $NetBSD: joy_isa.c,v 1.1 1997/01/16 23:17:48 christos Exp $ */
/*-
* Copyright (c) 1995 Jean-Marc Zucconi
* All rights reserved.
*
* Ported to NetBSD by Matthieu Herrb <matthieu@laas.fr>. Additional
* modification by Jason R. Thorpe <thorpej@NetBSD.ORG>.
*
* 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
* in this position and unchanged.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software withough 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.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <dev/isa/isavar.h>
#include <i386/isa/joyvar.h>
#define JOY_NPORTS 1
int joy_isa_probe __P((struct device *, void *, void *));
void joy_isa_attach __P((struct device *, struct device *, void *));
struct cfattach joy_isa_ca = {
sizeof(struct joy_softc), joy_isa_probe, joy_isa_attach
};
int
joy_isa_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
int rval = 0;
if (ia->ia_iobase == IOBASEUNK)
return (0);
if (bus_space_map(iot, ia->ia_iobase, JOY_NPORTS, 0, &ioh))
return (0);
#ifdef WANT_JOYSTICK_CONNECTED
bus_space_write_1(iot, ioh, 0, 0xff);
DELAY(10000); /* 10 ms delay */
if ((bus_space_read_1(iot, ioh, 0) & 0x0f) != 0x0f)
rval = 1;
#else
rval = 1;
#endif
bus_space_unmap(iot, ioh, JOY_NPORTS);
ia->ia_iosize = JOY_NPORTS;
ia->ia_msize = 0;
return rval;
}
void
joy_isa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct joy_softc *sc = (struct joy_softc *) self;
struct isa_attach_args *ia = aux;
printf("\n");
sc->sc_iot = ia->ia_iot;
if (bus_space_map(sc->sc_iot, ia->ia_iobase, JOY_NPORTS, 0,
&sc->sc_ioh)) {
printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
return;
}
joyattach(sc);
}