joy_isa.c

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    1 /*      $NetBSD: joy_isa.c,v 1.5 2003/12/04 12:42:54 keihan Exp $       */
    2 
    3 /*-
    4  * Copyright (c) 1995 Jean-Marc Zucconi
    5  * All rights reserved.
    6  *
    7  * Ported to NetBSD by Matthieu Herrb <matthieu@laas.fr>.  Additional
    8  * modification by Jason R. Thorpe <thorpej@NetBSD.org>.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer
   15  *    in this position and unchanged.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  * 3. The name of the author may not be used to endorse or promote products
   20  *    derived from this software without specific prior written permission
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   32  *
   33  */
   34 
   35 #include <sys/cdefs.h>
   36 __KERNEL_RCSID(0, "$NetBSD: joy_isa.c,v 1.5 2003/12/04 12:42:54 keihan Exp $");
   37 
   38 #include <sys/param.h>
   39 #include <sys/systm.h>
   40 #include <sys/kernel.h>
   41 #include <sys/device.h>
   42 
   43 #include <machine/bus.h>
   44 
   45 #include <dev/isa/isavar.h>
   46 
   47 #include <dev/ic/joyvar.h>
   48 
   49 #define JOY_NPORTS    1
   50 
   51 int     joy_isa_probe __P((struct device *, struct cfdata *, void *));
   52 void    joy_isa_attach __P((struct device *, struct device *, void *));
   53 
   54 CFATTACH_DECL(joy_isa, sizeof(struct joy_softc),
   55     joy_isa_probe, joy_isa_attach, NULL, NULL);
   56 
   57 int
   58 joy_isa_probe(parent, match, aux)
   59         struct device *parent;
   60         struct cfdata *match;
   61         void *aux;
   62 {
   63         struct isa_attach_args *ia = aux;
   64         bus_space_tag_t iot = ia->ia_iot;
   65         bus_space_handle_t ioh;
   66         int rval = 0;
   67 
   68         if (ia->ia_nio < 1)
   69                 return (0);
   70 
   71         if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT)
   72                 return (0);
   73 
   74         if (bus_space_map(iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, &ioh))
   75                 return (0);
   76 
   77 #ifdef WANT_JOYSTICK_CONNECTED
   78         bus_space_write_1(iot, ioh, 0, 0xff);
   79         DELAY(10000);           /* 10 ms delay */
   80         if ((bus_space_read_1(iot, ioh, 0) & 0x0f) != 0x0f)
   81                 rval = 1;
   82 #else
   83         rval = 1;
   84 #endif
   85 
   86         bus_space_unmap(iot, ioh, JOY_NPORTS);
   87 
   88         if (rval) {
   89                 ia->ia_nio = 1;
   90                 ia->ia_io[0].ir_size = JOY_NPORTS;
   91 
   92                 ia->ia_niomem = 0;
   93                 ia->ia_nirq = 0;
   94                 ia->ia_ndrq = 0;
   95         }
   96         return (rval);
   97 }
   98 
   99 void
  100 joy_isa_attach(parent, self, aux)
  101         struct device *parent, *self;
  102         void *aux;
  103 {
  104         struct joy_softc *sc = (struct joy_softc *) self;
  105         struct isa_attach_args *ia = aux;
  106 
  107         printf("\n");
  108 
  109         sc->sc_iot = ia->ia_iot;
  110 
  111         if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0,
  112             &sc->sc_ioh)) {
  113                 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
  114                 return;
  115         }
  116 
  117         joyattach(sc);
  118 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/isa/joy_isa.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/isa/joy_isa.c