usr.sbin/devinfo/devinfo.c

   1 /*-
   2  * Copyright (c) 2000, 2001 Michael Smith
   3  * Copyright (c) 2000 BSDi
   4  * 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 AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE 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
  21  * OR 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  * $FreeBSD: src/usr.sbin/devinfo/devinfo.c,v 1.7 2007/10/27 13:06:15 jhb Exp $
  28  * $DragonFly: src/usr.sbin/devinfo/devinfo.c,v 1.1 2008/09/30 12:20:29 hasso Exp $
  29  */
  30
  31 /*
  32  * Print information about system device configuration.
  33  */
  34
  35 #include <sys/types.h>
  36 #include <err.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <unistd.h>
  40 #include "devinfo.h"
  41
  42 int     rflag;
  43 int     vflag;
  44
  45 static void     print_resource(struct devinfo_res *);
  46 static int      print_device_matching_resource(struct devinfo_res *, void *);
  47 static int      print_device_rman_resources(struct devinfo_rman *, void *);
  48 static int      print_device(struct devinfo_dev *, void *);
  49 static int      print_rman_resource(struct devinfo_res *, void *);
  50 static int      print_rman(struct devinfo_rman *, void *);
  51
  52 struct indent_arg
  53 {
  54         int     indent;
  55         void    *arg;
  56 };
  57
  58 /*
  59  * Print a resource.
  60  */
  61 void
  62 print_resource(struct devinfo_res *res)
  63 {
  64         struct devinfo_rman     *rman;
  65         int                     hexmode;
  66
  67         rman = devinfo_handle_to_rman(res->dr_rman);
  68         hexmode =  (rman->dm_size > 1000) || (rman->dm_size == 0);
  69         printf(hexmode ? "0x%lx" : "%lu", res->dr_start);
  70         if (res->dr_size > 1)
  71                 printf(hexmode ? "-0x%lx" : "-%lu",
  72                     res->dr_start + res->dr_size - 1);
  73 }
  74
  75 /*
  76  * Print resource information if this resource matches the
  77  * given device.
  78  *
  79  * If the given indent is 0, return an indicator that a matching
  80  * resource exists.
  81  */
  82 int
  83 print_device_matching_resource(struct devinfo_res *res, void *arg)
  84 {
  85         struct indent_arg       *ia = (struct indent_arg *)arg;
  86         struct devinfo_dev      *dev = (struct devinfo_dev *)ia->arg;
  87         int                     i;
  88
  89         if (devinfo_handle_to_device(res->dr_device) == dev) {
  90                 /* in 'detect' mode, found a match */
  91                 if (ia->indent == 0)
  92                         return(1);
  93                 for (i = 0; i < ia->indent; i++)
  94                         printf(" ");
  95                 print_resource(res);
  96                 printf("\n");
  97         }
  98         return(0);
  99 }
 100
 101 /*
 102  * Print resource information for this device and resource manager.
 103  */
 104 int
 105 print_device_rman_resources(struct devinfo_rman *rman, void *arg)
 106 {
 107         struct indent_arg       *ia = (struct indent_arg *)arg;
 108         int                     indent, i;
 109
 110         indent = ia->indent;
 111
 112         /* check whether there are any resources matching this device */
 113         ia->indent = 0;
 114         if (devinfo_foreach_rman_resource(rman,
 115             print_device_matching_resource, ia) != 0) {
 116
 117                 /* there are, print header */
 118                 for (i = 0; i < indent; i++)
 119                         printf(" ");
 120                 printf("%s:\n", rman->dm_desc);
 121
 122                 /* print resources */
 123                 ia->indent = indent + 4;
 124                 devinfo_foreach_rman_resource(rman,
 125                     print_device_matching_resource, ia);
 126         }
 127         ia->indent = indent;
 128         return(0);
 129 }
 130
 131 /*
 132  * Print information about a device.
 133  */
 134 int
 135 print_device(struct devinfo_dev *dev, void *arg)
 136 {
 137         struct indent_arg       ia;
 138         int                     i, indent;
 139
 140         if (vflag > 1 ||
 141             (vflag && (dev->dd_flags & DIF_ENABLED)) ||
 142             (dev->dd_name[0] != 0 && dev->dd_state >= DIS_INPROGRESS)) {
 143                 indent = (int)(intptr_t)arg;
 144                 for (i = 0; i < indent; i++)
 145                         printf(" ");
 146                 if (vflag && (dev->dd_flags & DIF_ENABLED) == 0) {
 147                         if (dev->dd_name[0])
 148                                 printf("%s", dev->dd_name);
 149                         printf("(disabled)");
 150                 } else {
 151                         printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown");
 152                 }
 153                 if (vflag && *dev->dd_pnpinfo)
 154                         printf(" pnpinfo %s", dev->dd_pnpinfo);
 155                 if (vflag && *dev->dd_location)
 156                         printf(" at %s", dev->dd_location);
 157                 printf("\n");
 158                 if (rflag) {
 159                         ia.indent = indent + 4;
 160                         ia.arg = dev;
 161                         devinfo_foreach_rman(print_device_rman_resources,
 162                             (void *)&ia);
 163                 }
 164         }
 165
 166         return(devinfo_foreach_device_child(dev, print_device,
 167             (void *)((char *)arg + 2)));
 168 }
 169
 170 /*
 171  * Print information about a resource under a resource manager.
 172  */
 173 int
 174 print_rman_resource(struct devinfo_res *res, void *arg __unused)
 175 {
 176         struct devinfo_dev      *dev;
 177
 178         printf("    ");
 179         print_resource(res);
 180         dev = devinfo_handle_to_device(res->dr_device);
 181         if ((dev != NULL) && (dev->dd_name[0] != 0)) {
 182                 printf(" (%s)", dev->dd_name);
 183         } else {
 184                 printf(" ----");
 185         }
 186         printf("\n");
 187         return(0);
 188 }
 189
 190 /*
 191  * Print information about a resource manager.
 192  */
 193 int
 194 print_rman(struct devinfo_rman *rman, void *arg __unused)
 195 {
 196         printf("%s:\n", rman->dm_desc);
 197         devinfo_foreach_rman_resource(rman, print_rman_resource, 0);
 198         return(0);
 199 }
 200
 201 int
 202 main(int argc, char *argv[])
 203 {
 204         struct devinfo_dev      *root;
 205         int                     c, uflag;
 206
 207         uflag = 0;
 208         while ((c = getopt(argc, argv, "ruv")) != -1) {
 209                 switch(c) {
 210                 case 'r':
 211                         rflag++;
 212                         break;
 213                 case 'u':
 214                         uflag++;
 215                         break;
 216                 case 'v':
 217                         vflag++;
 218                         break;
 219                 default:
 220                         fprintf(stderr, "%s\n%s\n",
 221                             "usage: devinfo [-rv]",
 222                             "       devinfo -u");
 223                         exit(1);
 224                 }
 225         }
 226
 227         if (devinfo_init())
 228                 err(1, "devinfo_init");
 229
 230         if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL)
 231                 errx(1, "can't find root device");
 232
 233         /* print resource usage? */
 234         if (uflag) {
 235                 devinfo_foreach_rman(print_rman, NULL);
 236         } else {
 237                 /* print device hierarchy */
 238                 devinfo_foreach_device_child(root, print_device, NULL);
 239         }
 240         return(0);
 241 }