FreeBSD/Linux Kernel Cross Reference
sys/dev/ofisa/joy_ofisa.c

     /*      $NetBSD: joy_ofisa.c,v 1.7 2002/10/02 16:34:29 thorpej Exp $    */
     
     /*-
      * Copyright (c) 1996, 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Jason R. Thorpe.
      *
     * 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 the NetBSD
     *        Foundation, Inc. and its contributors.
     * 4. Neither the name of The NetBSD Foundation nor the names of its
     *    contributors may be used to endorse or promote products derived
     *    from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: joy_ofisa.c,v 1.7 2002/10/02 16:34:29 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/device.h>
    
    #include <machine/bus.h>
    
    #include <dev/ofw/openfirm.h>
    #include <dev/isa/isavar.h>
    #include <dev/ofisa/ofisavar.h>
    
    #include <dev/ic/joyvar.h>
    
    #define JOY_NPORTS      1       /* XXX should be in a header file */
    
    int     joy_ofisa_match __P((struct device *, struct cfdata *, void *));
    void    joy_ofisa_attach __P((struct device *, struct device *, void *));
    
    CFATTACH_DECL(joy_ofisa, sizeof(struct joy_softc),
        joy_ofisa_match, joy_ofisa_attach, NULL, NULL);
    
    int
    joy_ofisa_match(parent, match, aux)
            struct device *parent;
            struct cfdata *match;
            void *aux;
    {
            struct ofisa_attach_args *aa = aux;
            static const char *const compatible_strings[] = {
                    "pnpPNP,b02f",                  /* generic joystick */
                    NULL,
            };
            int rv = 0;
    
            if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
                    rv = 1;
            return (rv);
    }
    
    void
    joy_ofisa_attach(parent, self, aux)
            struct device *parent, *self;
            void *aux;
    {
            struct joy_softc *sc = (struct joy_softc *)self;
            struct ofisa_attach_args *aa = aux;
            struct ofisa_reg_desc reg;
            char *model = NULL;
            int n;
    
            /*
             * We're living on an OFW.  We have to ask the OFW what our
             * register property looks like.
             *
             * We expect:
             *
             *      1 i/o register region
             */
   
           n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
           if (n != 1) {
                   printf(": error getting register data\n");
                   return;
           }
           if (reg.type != OFISA_REG_TYPE_IO) {
                   printf(": register type not i/o\n");
                   return;
           }
           if (reg.len != JOY_NPORTS) {
                   printf(": weird register size (%lu, expected %d)\n",
                       (unsigned long)reg.len, JOY_NPORTS);
                   return;
           }
   
           sc->sc_iot = aa->iot;
   
           if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) {
                   printf(": unable to map register space\n");
                   return;
           }
   
           n = OF_getproplen(aa->oba.oba_phandle, "model");
           if (n > 0) {
                   model = alloca(n);
                   if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n)
                           model = NULL;   /* safe; alloca */
           }
           if (model != NULL)
                   printf(": %s", model);
           printf("\n");
   
           joyattach(sc);
   }

Cache object: 97f5f34e4e360316cecf6dd3ac95703a