107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
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/* $NetBSD: joy_isa.c,v 1.1 1997/01/16 23:17:48 christos Exp $ */
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/*-
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* Copyright (c) 1995 Jean-Marc Zucconi
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* All rights reserved.
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*
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* Ported to NetBSD by Matthieu Herrb <matthieu@laas.fr>. Additional
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* modification by Jason R. Thorpe <thorpej@NetBSD.ORG>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <dev/isa/isavar.h>
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#include <i386/isa/joyvar.h>
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#define JOY_NPORTS 1
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int joy_isa_probe __P((struct device *, void *, void *));
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void joy_isa_attach __P((struct device *, struct device *, void *));
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struct cfattach joy_isa_ca = {
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sizeof(struct joy_softc), joy_isa_probe, joy_isa_attach
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};
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int
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joy_isa_probe(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct isa_attach_args *ia = aux;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh;
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int rval = 0;
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if (ia->ia_iobase == IOBASEUNK)
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return (0);
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if (bus_space_map(iot, ia->ia_iobase, JOY_NPORTS, 0, &ioh))
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return (0);
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#ifdef WANT_JOYSTICK_CONNECTED
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bus_space_write_1(iot, ioh, 0, 0xff);
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DELAY(10000); /* 10 ms delay */
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if ((bus_space_read_1(iot, ioh, 0) & 0x0f) != 0x0f)
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rval = 1;
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#else
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rval = 1;
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#endif
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bus_space_unmap(iot, ioh, JOY_NPORTS);
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ia->ia_iosize = JOY_NPORTS;
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ia->ia_msize = 0;
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return rval;
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}
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void
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joy_isa_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct joy_softc *sc = (struct joy_softc *) self;
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struct isa_attach_args *ia = aux;
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printf("\n");
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sc->sc_iot = ia->ia_iot;
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if (bus_space_map(sc->sc_iot, ia->ia_iobase, JOY_NPORTS, 0,
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&sc->sc_ioh)) {
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printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
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return;
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}
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joyattach(sc);
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}
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