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/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 #include <sys/types.h> 38 #include <err.h> 39 #include <errno.h> 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <string.h> 43 #include <unistd.h> 44 #include "devinfo.h" 45 46 static int rflag; 47 static int vflag; 48 49 static void print_resource(struct devinfo_res *); 50 static int print_device_matching_resource(struct devinfo_res *, void *); 51 static int print_device_rman_resources(struct devinfo_rman *, void *); 52 static int print_device(struct devinfo_dev *, void *); 53 static int print_rman_resource(struct devinfo_res *, void *); 54 static int print_rman(struct devinfo_rman *, void *); 55 56 struct indent_arg 57 { 58 int indent; 59 void *arg; 60 }; 61 62 /* 63 * Print a resource. 64 */ 65 void 66 print_resource(struct devinfo_res *res) 67 { 68 struct devinfo_rman *rman; 69 int hexmode; 70 71 rman = devinfo_handle_to_rman(res->dr_rman); 72 hexmode = (rman->dm_size > 1000) || (rman->dm_size == 0); 73 printf(hexmode ? "0x%jx" : "%ju", res->dr_start); 74 if (res->dr_size > 1) 75 printf(hexmode ? "-0x%jx" : "-%ju", 76 res->dr_start + res->dr_size - 1); 77 } 78 79 /* 80 * Print resource information if this resource matches the 81 * given device. 82 * 83 * If the given indent is 0, return an indicator that a matching 84 * resource exists. 85 */ 86 int 87 print_device_matching_resource(struct devinfo_res *res, void *arg) 88 { 89 struct indent_arg *ia = (struct indent_arg *)arg; 90 struct devinfo_dev *dev = (struct devinfo_dev *)ia->arg; 91 int i; 92 93 if (devinfo_handle_to_device(res->dr_device) == dev) { 94 /* in 'detect' mode, found a match */ 95 if (ia->indent == 0) 96 return(1); 97 for (i = 0; i < ia->indent; i++) 98 printf(" "); 99 print_resource(res); 100 printf("\n"); 101 } 102 return(0); 103 } 104 105 /* 106 * Print resource information for this device and resource manager. 107 */ 108 int 109 print_device_rman_resources(struct devinfo_rman *rman, void *arg) 110 { 111 struct indent_arg *ia = (struct indent_arg *)arg; 112 int indent, i; 113 114 indent = ia->indent; 115 116 /* check whether there are any resources matching this device */ 117 ia->indent = 0; 118 if (devinfo_foreach_rman_resource(rman, 119 print_device_matching_resource, ia) != 0) { 120 121 /* there are, print header */ 122 for (i = 0; i < indent; i++) 123 printf(" "); 124 printf("%s:\n", rman->dm_desc); 125 126 /* print resources */ 127 ia->indent = indent + 4; 128 devinfo_foreach_rman_resource(rman, 129 print_device_matching_resource, ia); 130 } 131 ia->indent = indent; 132 return(0); 133 } 134 135 static void 136 print_dev(struct devinfo_dev *dev) 137 { 138 139 printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown"); 140 if (vflag && *dev->dd_pnpinfo) 141 printf(" pnpinfo %s", dev->dd_pnpinfo); 142 if (vflag && *dev->dd_location) 143 printf(" at %s", dev->dd_location); 144 if (!(dev->dd_flags & DF_ENABLED)) 145 printf(" (disabled)"); 146 else if (dev->dd_flags & DF_SUSPENDED) 147 printf(" (suspended)"); 148 } 149 150 151 /* 152 * Print information about a device. 153 */ 154 int 155 print_device(struct devinfo_dev *dev, void *arg) 156 { 157 struct indent_arg ia; 158 int i, indent; 159 160 if (vflag || (dev->dd_name[0] != 0 && dev->dd_state >= DS_ATTACHED)) { 161 indent = (int)(intptr_t)arg; 162 for (i = 0; i < indent; i++) 163 printf(" "); 164 print_dev(dev); 165 printf("\n"); 166 if (rflag) { 167 ia.indent = indent + 4; 168 ia.arg = dev; 169 devinfo_foreach_rman(print_device_rman_resources, 170 (void *)&ia); 171 } 172 } 173 174 return(devinfo_foreach_device_child(dev, print_device, 175 (void *)((char *)arg + 2))); 176 } 177 178 /* 179 * Print information about a resource under a resource manager. 180 */ 181 int 182 print_rman_resource(struct devinfo_res *res, void *arg __unused) 183 { 184 struct devinfo_dev *dev; 185 186 printf(" "); 187 print_resource(res); 188 dev = devinfo_handle_to_device(res->dr_device); 189 if ((dev != NULL) && (dev->dd_name[0] != 0)) { 190 printf(" (%s)", dev->dd_name); 191 } else { 192 printf(" ----"); 193 } 194 printf("\n"); 195 return(0); 196 } 197 198 /* 199 * Print information about a resource manager. 200 */ 201 int 202 print_rman(struct devinfo_rman *rman, void *arg __unused) 203 { 204 printf("%s:\n", rman->dm_desc); 205 devinfo_foreach_rman_resource(rman, print_rman_resource, 0); 206 return(0); 207 } 208 209 static int 210 print_path(struct devinfo_dev *dev, void *xname) 211 { 212 const char *name = xname; 213 int rv; 214 215 if (strcmp(dev->dd_name, name) == 0) { 216 print_dev(dev); 217 if (vflag) 218 printf("\n"); 219 return (1); 220 } 221 222 rv = devinfo_foreach_device_child(dev, print_path, xname); 223 if (rv == 1) { 224 printf(" "); 225 print_dev(dev); 226 if (vflag) 227 printf("\n"); 228 } 229 return (rv); 230 } 231 232 static void __dead2 233 usage(void) 234 { 235 fprintf(stderr, "%s\n%s\n%s\n", 236 "usage: devinfo [-rv]", 237 " devinfo -u", 238 " devinfo -p dev [-v]"); 239 exit(1); 240 } 241 242 int 243 main(int argc, char *argv[]) 244 { 245 struct devinfo_dev *root; 246 int c, uflag, rv; 247 char *path = NULL; 248 249 uflag = 0; 250 while ((c = getopt(argc, argv, "p:ruv")) != -1) { 251 switch(c) { 252 case 'p': 253 path = optarg; 254 break; 255 case 'r': 256 rflag++; 257 break; 258 case 'u': 259 uflag++; 260 break; 261 case 'v': 262 vflag++; 263 break; 264 default: 265 usage(); 266 } 267 } 268 269 if (path && (rflag || uflag)) 270 usage(); 271 272 if ((rv = devinfo_init()) != 0) { 273 errno = rv; 274 err(1, "devinfo_init"); 275 } 276 277 if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL) 278 errx(1, "can't find root device"); 279 280 if (path) { 281 if (devinfo_foreach_device_child(root, print_path, (void *)path) == 0) 282 errx(1, "%s: Not found", path); 283 if (!vflag) 284 printf("\n"); 285 } else if (uflag) { 286 /* print resource usage? */ 287 devinfo_foreach_rman(print_rman, NULL); 288 } else { 289 /* print device hierarchy */ 290 devinfo_foreach_device_child(root, print_device, (void *)0); 291 } 292 return(0); 293 } 294