sys/arch/mipsco/obio/obio.c

   1 /*      $NetBSD: obio.c,v 1.15 2009/03/14 15:36:10 dsl Exp $    */
   2
   3 /*-
   4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Wayne Knowles
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.15 2009/03/14 15:36:10 dsl Exp $");
  34
  35 #include "locators.h"
  36
  37 #include <sys/param.h>
  38 #include <sys/systm.h>
  39 #include <sys/device.h>
  40
  41 #include <machine/autoconf.h>
  42 #include <machine/mainboard.h>
  43 #include <machine/bus.h>
  44 #include <machine/sysconf.h>
  45
  46 static int      obio_match(struct device *, struct cfdata *, void *);
  47 static void     obio_attach(struct device *, struct device *, void *);
  48 static int      obio_search(struct device *, struct cfdata *,
  49                                  const int *, void *);
  50 static int      obio_print(void *, const char *);
  51 static void     obio_intr_establish(bus_space_tag_t, int, int, int,
  52                                           int (*)(void *), void *);
  53
  54 CFATTACH_DECL(obio, sizeof(struct device),
  55     obio_match, obio_attach, NULL, NULL);
  56
  57 extern struct cfdriver obio_cd;
  58
  59 struct mipsco_bus_space obio_bustag;
  60 struct mipsco_bus_dma_tag obio_dmatag;
  61
  62 static int
  63 obio_match(struct device *parent, struct cfdata *cf, void *aux)
  64 {
  65         struct confargs *ca = aux;
  66
  67         if (strcmp(ca->ca_name, obio_cd.cd_name) != 0)
  68                 return 0;
  69
  70         return 1;
  71 }
  72
  73 static void
  74 obio_attach(struct device *parent, struct device *self, void *aux)
  75 {
  76         struct confargs *ca = aux;
  77
  78         /* PIZAZZ (Mips 3000 Magnum)  Address Map */
  79         mipsco_bus_space_init(&obio_bustag, "obio",
  80                               0x18000000, 0xb8000000,
  81                               0xb8000000, 0x08000000);
  82
  83         _bus_dma_tag_init(&obio_dmatag);
  84         obio_bustag.bs_intr_establish = obio_intr_establish; /* XXX */
  85
  86         ca->ca_bustag = &obio_bustag;
  87         ca->ca_dmatag = &obio_dmatag;
  88
  89         printf("\n");
  90         config_search_ia(obio_search, self, "obio", ca);
  91 }
  92
  93 static int
  94 obio_search(struct device *parent, struct cfdata *cf, const int *ldesc, void *aux)
  95 {
  96         struct confargs *ca = aux;
  97
  98         ca->ca_addr = cf->cf_addr;
  99         ca->ca_name = cf->cf_name;
 100
 101         if (config_match(parent, cf, ca) != 0)
 102                 config_attach(parent, cf, ca, obio_print);
 103
 104         return 0;
 105 }
 106
 107 /*
 108  * Print out the confargs.  The (parent) name is non-NULL
 109  * when there was no match found by config_found().
 110  */
 111 static int
 112 obio_print(void *args, const char *name)
 113 {
 114         struct confargs *ca = args;
 115
 116         if (name)
 117                 return(QUIET);
 118
 119         if (ca->ca_addr != -1)
 120                 aprint_normal(" addr 0x%x", ca->ca_addr);
 121
 122         return(UNCONF);
 123 }
 124
 125 void
 126 obio_intr_establish(bus_space_tag_t bst, int level, int pri, int flags, int (*func)(void *), void *arg)
 127 {
 128         (*platform.intr_establish)(level, func, arg);
 129 }