sys/arch/acorn32/eb7500atx/rsbus.c

   1 /* $NetBSD: rsbus.c,v 1.6 2009/03/14 15:35:58 dsl Exp $ */
   2
   3 /*
   4  * Copyright (c) 2002
   5  *      Ichiro FUKUHARA <ichiro@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 1.6 2009/03/14 15:35:58 dsl 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(struct device *, struct cfdata *, void *);
  49 static void     rsbus_attach(struct device *, struct device *, void *);
  50 static int      rsbus_print(void *, const char *);
  51 static int      rsbus_search(struct device *, struct cfdata *,
  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(struct device *parent, struct cfdata *cf, void *aux)
  59 {
  60         return(1);
  61 }
  62
  63 static void
  64 rsbus_attach(struct device *parent, struct device *self, void *aux)
  65 {
  66         struct rsbus_softc *sc = (void *) 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(struct device *parent, struct cfdata *cf, const int *ldesc, void *aux)
  79 {
  80         struct rsbus_softc *sc = (struct rsbus_softc *)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 = (struct rsbus_attach_args*)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