sys/arch/dreamcast/dev/g2/g2bus.c

   1 /*      $NetBSD: g2bus.c,v 1.12 2005/12/11 12:17:06 christos Exp $      */
   2
   3 /*-
   4  * Copyright (c) 2001 Marcus Comstedt
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Marcus Comstedt.
  18  * 4. Neither the name of The NetBSD Foundation nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35
  36 #include <sys/cdefs.h>
  37 __KERNEL_RCSID(0, "$NetBSD: g2bus.c,v 1.12 2005/12/11 12:17:06 christos Exp $");
  38
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/kernel.h>
  42 #include <sys/conf.h>
  43 #include <sys/malloc.h>
  44 #include <sys/device.h>
  45 #include <sys/proc.h>
  46
  47 #include <dreamcast/dev/g2/g2busvar.h>
  48
  49 int     g2busmatch(struct device *, struct cfdata *, void *);
  50 void    g2busattach(struct device *, struct device *, void *);
  51 int     g2busprint(void *, const char *);
  52
  53 CFATTACH_DECL(g2bus, sizeof(struct g2bus_softc),
  54     g2busmatch, g2busattach, NULL, NULL);
  55
  56 int     g2bussearch(struct device *, struct cfdata *,
  57                     const int *, void *);
  58
  59 int
  60 g2busmatch(struct device *parent, struct cfdata *cf, void *aux)
  61 {
  62
  63         return 1;
  64 }
  65
  66 void
  67 g2busattach(struct device *parent, struct device *self, void *aux)
  68 {
  69         struct g2bus_softc *sc = (void *) self;
  70         struct g2bus_attach_args ga;
  71
  72         printf("\n");
  73
  74         TAILQ_INIT(&sc->sc_subdevs);
  75
  76         g2bus_bus_mem_init(sc);
  77
  78         ga.ga_memt = &sc->sc_memt;
  79
  80         config_search_ia(g2bussearch, self, "g2bus", &ga);
  81 }
  82
  83 int
  84 g2busprint(void *aux, const char *pnp)
  85 {
  86
  87         return UNCONF;
  88 }
  89
  90 int
  91 g2bussearch(struct device *parent, struct cfdata *cf,
  92             const int *ldesc, void *aux)
  93 {
  94
  95         if (config_match(parent, cf, aux) > 0)
  96                 config_attach(parent, cf, aux, g2busprint);
  97
  98         return 0;
  99 }