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rsbus.c revision 1.8 
      1 /* $NetBSD: rsbus.c,v 1.8 2011/06/03 07:35:37 matt Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2002
      5  *	Ichiro FUKUHARA <ichiro (at) ichiro.org>.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
     21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 
     32 __KERNEL_RCSID(0, "$NetBSD: rsbus.c,v 1.8 2011/06/03 07:35:37 matt Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/device.h>
     37 
     38 #include <machine/bus.h>
     39 
     40 #include <acorn32/eb7500atx/rsbus.h>
     41 
     42 #include "locators.h"
     43 
     44 extern struct bus_space rsbus_bs_tag;
     45 
     46 /* Declare prototypes */
     47 
     48 static int	rsbus_match(device_t, cfdata_t, void *);
     49 static void	rsbus_attach(device_t, device_t, void *);
     50 static int	rsbus_print(void *, const char *);
     51 static int	rsbus_search(device_t, cfdata_t,
     52 			     const int *, void *);
     53 
     54 CFATTACH_DECL(rsbus, sizeof(struct rsbus_softc),
     55     rsbus_match, rsbus_attach, NULL, NULL);
     56 
     57 static int
     58 rsbus_match(device_t parent, cfdata_t cf, void *aux)
     59 {
     60 	return(1);
     61 }
     62 
     63 static void
     64 rsbus_attach(device_t parent, device_t self, void *aux)
     65 {
     66 	struct rsbus_softc *sc = device_private(self);
     67 	sc->sc_iot = &rsbus_bs_tag;
     68 
     69 	printf("\n");
     70 
     71 	/*
     72 	 *  Attach each devices
     73 	 */
     74 	config_search_ia(rsbus_search, self, "rsbus", NULL);
     75 }
     76 
     77 static int
     78 rsbus_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
     79 {
     80 	struct rsbus_softc *sc = device_private(parent);
     81 	struct rsbus_attach_args sa;
     82 
     83 	sa.sa_iot = sc->sc_iot;
     84 	sa.sa_addr = cf->cf_loc[RSBUSCF_ADDR];
     85 	sa.sa_size = cf->cf_loc[RSBUSCF_SIZE];
     86 	sa.sa_intr = cf->cf_loc[RSBUSCF_IRQ];
     87 
     88 	if (config_match(parent, cf, &sa) > 0)
     89 		config_attach(parent, cf, &sa, rsbus_print);
     90 
     91 	return (0);
     92 }
     93 
     94 static int
     95 rsbus_print(void *aux, const char *name)
     96 {
     97         struct rsbus_attach_args *sa = aux;
     98 
     99 	if (sa->sa_size)
    100 		aprint_normal(" addr 0x%lx", sa->sa_addr);
    101 	if (sa->sa_size > 1)
    102 		aprint_normal("-0x%lx", sa->sa_addr + sa->sa_size - 1);
    103 	if (sa->sa_intr > 1)
    104 		aprint_normal(" irq %d", sa->sa_intr);
    105 
    106 	return (UNCONF);
    107 }
    108