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mainbus.c revision 1.4 
      1 /* $NetBSD: mainbus.c,v 1.4 2011/08/12 12:59:13 jmcneill Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2007 Jared D. McNeill <jmcneill (at) invisible.ca>
      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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.4 2011/08/12 12:59:13 jmcneill Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/proc.h>
     34 #include <sys/systm.h>
     35 #include <sys/device.h>
     36 
     37 #include <dev/cons.h>
     38 
     39 #include <machine/mainbus.h>
     40 
     41 static int	mainbus_match(device_t, cfdata_t, void *);
     42 static void	mainbus_attach(device_t, device_t, void *);
     43 
     44 static int	mainbus_print(void *, const char *);
     45 
     46 typedef struct mainbus_softc {
     47 	device_t	sc_dev;
     48 } mainbus_softc_t;
     49 
     50 CFATTACH_DECL_NEW(mainbus, sizeof(mainbus_softc_t),
     51     mainbus_match, mainbus_attach, NULL, NULL);
     52 
     53 extern char *usermode_root_image_path;
     54 
     55 static int
     56 mainbus_match(device_t parent, cfdata_t match, void *opaque)
     57 {
     58 
     59 	return 1;
     60 }
     61 
     62 static void
     63 mainbus_attach(device_t parent, device_t self, void *opaque)
     64 {
     65 	mainbus_softc_t *sc = device_private(self);
     66 	struct thunkbus_attach_args taa;
     67 
     68 	aprint_naive("\n");
     69 	aprint_normal("\n");
     70 
     71 	sc->sc_dev = self;
     72 
     73 	taa.taa_type = THUNKBUS_TYPE_CPU;
     74 	config_found_ia(self, "thunkbus", &taa, mainbus_print);
     75 	taa.taa_type = THUNKBUS_TYPE_CLOCK;
     76 	config_found_ia(self, "thunkbus", &taa, mainbus_print);
     77 	taa.taa_type = THUNKBUS_TYPE_TTYCONS;
     78 	config_found_ia(self, "thunkbus", &taa, mainbus_print);
     79 
     80 	if (usermode_root_image_path) {
     81 		taa.taa_type = THUNKBUS_TYPE_DISKIMAGE;
     82 		taa.u.diskimage.path = usermode_root_image_path;
     83 		config_found_ia(self, "thunkbus", &taa, mainbus_print);
     84 	}
     85 }
     86 
     87 static int
     88 mainbus_print(void *opaque, const char *pnp)
     89 {
     90 	if (pnp)
     91 		aprint_normal("%s", pnp);
     92 	return UNCONF;
     93 }
     94