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/* $OpenBSD: joy.c,v 1.3 2002/06/11 03:25:42 miod Exp $ */
/*
* Copyright (c) 2000 Marc Espie.
*
* 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 OPENBSD PROJECT 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 OPENBSD
* PROJECT 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/param.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <machine/joystick.h>
#include <machine/conf.h>
#include <amiga/amiga/device.h>
#include <amiga/amiga/custom.h>
#include <amiga/amiga/cia.h>
int joymatch(struct device *, void *, void *);
void joyattach(struct device *, struct device *, void *);
struct cfattach joy_ca = {
sizeof(struct device), joymatch, joyattach
};
struct cfdriver joy_cd = {
NULL, "joy", DV_DULL, NULL, 0 };
/*
* We assume the joysticks are always there.
* They share the mouse ports, and there is no way to
* distinguish what is connected. So what ?
*/
int
joymatch(pdp, match, auxp)
struct device *pdp;
void *match, *auxp;
{
if (matchname("joy", auxp))
return(1);
return(0);
}
void
joyattach(pdp, dp, auxp)
struct device *pdp, *dp;
void *auxp;
{
printf(": 2 ports\n");
}
int
joyopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
int unit = minor(dev);
if (unit == 0 || unit == 1)
return(0);
else
return(ENXIO);
}
int
joyclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
return(0);
}
int
joyread(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
int unit = minor(dev);
unsigned short w, x;
unsigned char r;
r = JOYSTICK_NONE;
if (unit == 0) {
w = custom.joy0dat;
if ((ciaa.pra & 64) == 0)
r = JOYSTICK_FIRE;
} else {
w = custom.joy1dat;
if ((ciaa.pra & 128) == 0)
r = JOYSTICK_FIRE;
}
x = (w>>1) ^ w;
if (w & 2)
r |= JOYSTICK_RIGHT;
if (x & 1)
r |= JOYSTICK_DOWN;
if (w & 512)
r |= JOYSTICK_LEFT;
if (x & 256)
r |= JOYSTICK_UP;
return uiomove((caddr_t)&r, 1, uio);
}
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