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g2bus.c revision 1.1 
      1 /*	$NetBSD: g2bus.c,v 1.1 2001/01/31 18:33:24 thorpej 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 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/kernel.h>
     38 #include <sys/conf.h>
     39 #include <sys/malloc.h>
     40 #include <sys/device.h>
     41 #include <sys/proc.h>
     42 
     43 #include <dreamcast/dev/g2/g2busvar.h>
     44 
     45 int	g2busmatch(struct device *, struct cfdata *, void *);
     46 void	g2busattach(struct device *, struct device *, void *);
     47 int	g2busprint(void *, const char *);
     48 
     49 struct cfattach g2bus_ca = {
     50 	sizeof(struct g2bus_softc), g2busmatch, g2busattach
     51 };
     52 
     53 int	g2bussearch(struct device *, struct cfdata *, void *);
     54 
     55 int
     56 g2busmatch(struct device *parent, struct cfdata *cf, void *aux)
     57 {
     58   	struct shb_attach_args *sa = aux;
     59 
     60 	if (strcmp("g2bus", cf->cf_driver->cd_name))
     61 		return (0);
     62 
     63 	sa->ia_iosize = 0 /* */;
     64         return (1);
     65 }
     66 
     67 void
     68 g2busattach(struct device *parent, struct device *self, void *aux)
     69 {
     70 	struct g2bus_softc *sc = (void *) self;
     71 	struct g2bus_attach_args ga;
     72 
     73 	printf("\n");
     74 
     75 	TAILQ_INIT(&sc->sc_subdevs);
     76 
     77 	g2bus_bus_mem_init(sc);
     78 
     79 	ga.ga_memt = &sc->sc_memt;
     80 
     81 	config_search(g2bussearch, self, &ga);
     82 }
     83 
     84 int
     85 g2busprint(void *aux, const char *pnp)
     86 {
     87 
     88 	return (UNCONF);
     89 }
     90 
     91 int
     92 g2bussearch(struct device *parent, struct cfdata *cf, void *aux)
     93 {
     94 
     95 	if ((*cf->cf_attach->ca_match)(parent, cf, aux) > 0)
     96 		config_attach(parent, cf, aux, g2busprint);
     97 
     98 	return (0);
     99 }
    100