1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2000, 2001 Michael Smith 5 * Copyright (c) 2000 BSDi 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 THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR 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 /* 31 * Print information about system device configuration. 32 */ 33 34 #include <sys/types.h> 35 #include <err.h> 36 #include <errno.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <unistd.h> 41 #include "devinfo.h" 42 43 static int rflag; 44 static int vflag; 45 46 static void print_resource(struct devinfo_res *); 47 static int print_device_matching_resource(struct devinfo_res *, void *); 48 static int print_device_rman_resources(struct devinfo_rman *, void *); 49 static int print_device(struct devinfo_dev *, void *); 50 static int print_rman_resource(struct devinfo_res *, void *); 51 static int print_rman(struct devinfo_rman *, void *); 52 53 struct indent_arg 54 { 55 int indent; 56 void *arg; 57 }; 58 59 /* 60 * Print a resource. 61 */ 62 void 63 print_resource(struct devinfo_res *res) 64 { 65 struct devinfo_rman *rman; 66 int hexmode; 67 68 rman = devinfo_handle_to_rman(res->dr_rman); 69 hexmode = (rman->dm_size > 1000) || (rman->dm_size == 0); 70 printf(hexmode ? "0x%jx" : "%ju", res->dr_start); 71 if (res->dr_size > 1) 72 printf(hexmode ? "-0x%jx" : "-%ju", 73 res->dr_start + res->dr_size - 1); 74 } 75 76 /* 77 * Print resource information if this resource matches the 78 * given device. 79 * 80 * If the given indent is 0, return an indicator that a matching 81 * resource exists. 82 */ 83 int 84 print_device_matching_resource(struct devinfo_res *res, void *arg) 85 { 86 struct indent_arg *ia = (struct indent_arg *)arg; 87 struct devinfo_dev *dev = (struct devinfo_dev *)ia->arg; 88 int i; 89 90 if (devinfo_handle_to_device(res->dr_device) == dev) { 91 /* in 'detect' mode, found a match */ 92 if (ia->indent == 0) 93 return(1); 94 for (i = 0; i < ia->indent; i++) 95 printf(" "); 96 print_resource(res); 97 printf("\n"); 98 } 99 return(0); 100 } 101 102 /* 103 * Print resource information for this device and resource manager. 104 */ 105 int 106 print_device_rman_resources(struct devinfo_rman *rman, void *arg) 107 { 108 struct indent_arg *ia = (struct indent_arg *)arg; 109 int indent, i; 110 111 indent = ia->indent; 112 113 /* check whether there are any resources matching this device */ 114 ia->indent = 0; 115 if (devinfo_foreach_rman_resource(rman, 116 print_device_matching_resource, ia) != 0) { 117 118 /* there are, print header */ 119 for (i = 0; i < indent; i++) 120 printf(" "); 121 printf("%s:\n", rman->dm_desc); 122 123 /* print resources */ 124 ia->indent = indent + 4; 125 devinfo_foreach_rman_resource(rman, 126 print_device_matching_resource, ia); 127 } 128 ia->indent = indent; 129 return(0); 130 } 131 132 static void 133 print_dev(struct devinfo_dev *dev) 134 { 135 136 printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown"); 137 if (vflag && *dev->dd_pnpinfo) 138 printf(" pnpinfo %s", dev->dd_pnpinfo); 139 if (vflag && *dev->dd_location) 140 printf(" at %s", dev->dd_location); 141 if (!(dev->dd_flags & DF_ENABLED)) 142 printf(" (disabled)"); 143 else if (dev->dd_flags & DF_SUSPENDED) 144 printf(" (suspended)"); 145 } 146 147 148 /* 149 * Print information about a device. 150 */ 151 int 152 print_device(struct devinfo_dev *dev, void *arg) 153 { 154 struct indent_arg ia; 155 int i, indent; 156 157 if (vflag || (dev->dd_name[0] != 0 && dev->dd_state >= DS_ATTACHED)) { 158 indent = (int)(intptr_t)arg; 159 for (i = 0; i < indent; i++) 160 printf(" "); 161 print_dev(dev); 162 printf("\n"); 163 if (rflag) { 164 ia.indent = indent + 4; 165 ia.arg = dev; 166 devinfo_foreach_rman(print_device_rman_resources, 167 (void *)&ia); 168 } 169 } 170 171 return(devinfo_foreach_device_child(dev, print_device, 172 (void *)((char *)arg + 2))); 173 } 174 175 /* 176 * Print information about a resource under a resource manager. 177 */ 178 int 179 print_rman_resource(struct devinfo_res *res, void *arg __unused) 180 { 181 struct devinfo_dev *dev; 182 183 printf(" "); 184 print_resource(res); 185 dev = devinfo_handle_to_device(res->dr_device); 186 if ((dev != NULL) && (dev->dd_name[0] != 0)) { 187 printf(" (%s)", dev->dd_name); 188 } else { 189 printf(" ----"); 190 } 191 printf("\n"); 192 return(0); 193 } 194 195 /* 196 * Print information about a resource manager. 197 */ 198 int 199 print_rman(struct devinfo_rman *rman, void *arg __unused) 200 { 201 printf("%s:\n", rman->dm_desc); 202 devinfo_foreach_rman_resource(rman, print_rman_resource, 0); 203 return(0); 204 } 205 206 static int 207 print_path(struct devinfo_dev *dev, void *xname) 208 { 209 const char *name = xname; 210 int rv; 211 212 if (strcmp(dev->dd_name, name) == 0) { 213 print_dev(dev); 214 if (vflag) 215 printf("\n"); 216 return (1); 217 } 218 219 rv = devinfo_foreach_device_child(dev, print_path, xname); 220 if (rv == 1) { 221 printf(" "); 222 print_dev(dev); 223 if (vflag) 224 printf("\n"); 225 } 226 return (rv); 227 } 228 229 static void __dead2 230 usage(void) 231 { 232 fprintf(stderr, "%s\n%s\n%s\n", 233 "usage: devinfo [-rv]", 234 " devinfo -u", 235 " devinfo -p dev [-v]"); 236 exit(1); 237 } 238 239 int 240 main(int argc, char *argv[]) 241 { 242 struct devinfo_dev *root; 243 int c, uflag, rv; 244 char *path = NULL; 245 246 uflag = 0; 247 while ((c = getopt(argc, argv, "p:ruv")) != -1) { 248 switch(c) { 249 case 'p': 250 path = optarg; 251 break; 252 case 'r': 253 rflag++; 254 break; 255 case 'u': 256 uflag++; 257 break; 258 case 'v': 259 vflag++; 260 break; 261 default: 262 usage(); 263 } 264 } 265 266 if (path && (rflag || uflag)) 267 usage(); 268 269 if ((rv = devinfo_init()) != 0) { 270 errno = rv; 271 err(1, "devinfo_init"); 272 } 273 274 if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL) 275 errx(1, "can't find root device"); 276 277 if (path) { 278 if (devinfo_foreach_device_child(root, print_path, (void *)path) == 0) 279 errx(1, "%s: Not found", path); 280 if (!vflag) 281 printf("\n"); 282 } else if (uflag) { 283 /* print resource usage? */ 284 devinfo_foreach_rman(print_rman, NULL); 285 } else { 286 /* print device hierarchy */ 287 devinfo_foreach_device_child(root, print_device, (void *)0); 288 } 289 return(0); 290 } 291