sys/rump/librump/rumpdev/autoconf.c

   1 /*      $NetBSD: autoconf.c,v 1.3 2009/10/01 15:21:38 pooka Exp $       */
   2
   3 /*
   4  * Copyright (c) 2009 Antti Kantee.  All Rights Reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  16  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  18  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  */
  27
  28 #include <sys/cdefs.h>
  29 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.3 2009/10/01 15:21:38 pooka Exp $");
  30
  31 #include <sys/param.h>
  32 #include <sys/device.h>
  33 #include <sys/kernel.h>
  34
  35 static int      mainbus_match(struct device *, struct cfdata *, void *);
  36 static void     mainbus_attach(struct device *, struct device *, void *);
  37 static int      mainbus_search(struct device *, struct cfdata *,
  38                                const int *, void *);
  39
  40 struct mainbus_softc {
  41         int mb_nada;
  42 };
  43
  44 static const struct cfiattrdata mainbus_iattrdata = {
  45         "mainbus", 0, {
  46                 { NULL, NULL, 0 },
  47         }
  48 };
  49 static const struct cfiattrdata * const mainbus_attrs[] = {
  50         &mainbus_iattrdata,
  51         NULL,
  52 };
  53
  54 CFDRIVER_DECL(mainbus, DV_DULL, mainbus_attrs);
  55 CFATTACH_DECL_NEW(mainbus, sizeof(struct mainbus_softc),
  56         mainbus_match, mainbus_attach, NULL, NULL);
  57
  58 struct cfdriver * const cfdriver_list_initial[] = {
  59         &mainbus_cd,
  60         NULL
  61 };
  62
  63 static struct cfattach * const mainbus_cfattachinit[] = {
  64         &mainbus_ca, NULL
  65 };
  66 const struct cfattachinit cfattachinit[] = {
  67         { "mainbus", mainbus_cfattachinit },
  68         { NULL, NULL },
  69 };
  70
  71 struct cfdata cfdata[] = {
  72         { "mainbus", "mainbus", 0, FSTATE_NOTFOUND, NULL, 0, NULL},
  73 };
  74
  75 const short cfroots[] = {
  76         0, /* mainbus */
  77         -1
  78 };
  79
  80 /* actually used */
  81 #define MAXPDEVS 256
  82 struct pdevinit pdevinit[MAXPDEVS] = {{NULL,0}, }; /* XXX: static limit */
  83 static int pdev_total = 0;
  84
  85 #include "rump_dev_private.h"
  86
  87 void
  88 rump_pdev_add(void (*pdev_attach)(int), int pdev_count)
  89 {
  90         struct pdevinit *pdev_new;
  91
  92         KASSERT(cold);
  93
  94         pdev_new = &pdevinit[pdev_total];
  95         pdev_new->pdev_attach = pdev_attach;
  96         pdev_new->pdev_count = pdev_count;
  97
  98         pdev_total++;
  99         KASSERT(pdev_total < MAXPDEVS);
 100 }
 101
 102 void
 103 rump_pdev_finalize()
 104 {
 105
 106         rump_pdev_add(NULL, 0);
 107 }
 108
 109 int
 110 mainbus_match(struct device *parent, struct cfdata *match, void *aux)
 111 {
 112
 113         return 1;
 114 }
 115
 116 void
 117 mainbus_attach(struct device *parent, struct device *self, void *aux)
 118 {
 119
 120         aprint_normal("\n");
 121         config_search_ia(mainbus_search, self, "mainbus", NULL);
 122 }
 123
 124 static int
 125 mainbus_search(struct device *parent, struct cfdata *cf,
 126         const int *ldesc, void *aux)
 127 {
 128         struct mainbus_attach_args maa;
 129
 130         maa.maa_unit = cf->cf_unit;
 131         if (config_match(parent, cf, &maa) > 0)
 132                 config_attach(parent, cf, &maa, NULL);
 133
 134         return 0;
 135 }