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      1 /*	$NetBSD: g2bus.c,v 1.17 2023/12/20 06:36:03 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 
     36 #include <sys/cdefs.h>
     37 __KERNEL_RCSID(0, "$NetBSD: g2bus.c,v 1.17 2023/12/20 06:36:03 thorpej 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/device.h>
     44 #include <sys/proc.h>
     45 
     46 #include <dreamcast/dev/g2/g2busvar.h>
     47 
     48 int	g2busmatch(device_t, cfdata_t, void *);
     49 void	g2busattach(device_t, device_t, void *);
     50 int	g2busprint(void *, const char *);
     51 
     52 CFATTACH_DECL_NEW(g2bus, sizeof(struct g2bus_softc),
     53     g2busmatch, g2busattach, NULL, NULL);
     54 
     55 int	g2bussearch(device_t, cfdata_t, const int *, void *);
     56 
     57 int
     58 g2busmatch(device_t parent, cfdata_t cf, void *aux)
     59 {
     60 
     61 	return 1;
     62 }
     63 
     64 void
     65 g2busattach(device_t parent, device_t self, void *aux)
     66 {
     67 	struct g2bus_softc *sc = device_private(self);
     68 	struct g2bus_attach_args ga;
     69 
     70 	sc->sc_dev = self;
     71 	printf("\n");
     72 
     73 	TAILQ_INIT(&sc->sc_subdevs);
     74 
     75 	g2bus_bus_mem_init(sc);
     76 
     77 	ga.ga_memt = &sc->sc_memt;
     78 
     79 	config_search(self, &ga,
     80 	    CFARGS(.search = g2bussearch));
     81 }
     82 
     83 int
     84 g2busprint(void *aux, const char *pnp)
     85 {
     86 
     87 	return UNCONF;
     88 }
     89 
     90 int
     91 g2bussearch(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
     92 {
     93 
     94 	if (config_probe(parent, cf, aux))
     95 		config_attach(parent, cf, aux, g2busprint, CFARGS_NONE);
     96 
     97 	return 0;
     98 }
     99