devinfo.c revision 87553
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: head/usr.sbin/devinfo/devinfo.c 87553 2001-12-09 07:32:55Z mikeh $ 28 */ 29 30/* 31 * Print information about system device configuration. 32 */ 33 34#include <sys/types.h> 35#include <err.h> 36#include <stdio.h> 37#include <unistd.h> 38#include "devinfo.h" 39 40int rflag; 41 42static void print_resource(struct devinfo_res *); 43static int print_device_matching_resource(struct devinfo_res *, void *); 44static int print_device_rman_resources(struct devinfo_rman *, void *); 45static int print_device(struct devinfo_dev *, void *); 46static int print_rman_resource(struct devinfo_res *, void *); 47static int print_rman(struct devinfo_rman *, void *); 48 49struct indent_arg 50{ 51 int indent; 52 void *arg; 53}; 54 55/* 56 * Print a resource. 57 */ 58void 59print_resource(struct devinfo_res *res) 60{ 61 struct devinfo_rman *rman; 62 int hexmode; 63 64 rman = devinfo_handle_to_rman(res->dr_rman); 65 hexmode = (rman->dm_size > 100) || (rman->dm_size == 0); 66 printf(hexmode ? "0x%lx" : "%lu", res->dr_start); 67 if (res->dr_size > 1) 68 printf(hexmode ? "-0x%lx" : "-%lu", 69 res->dr_start + res->dr_size - 1); 70} 71 72/* 73 * Print resource information if this resource matches the 74 * given device. 75 * 76 * If the given indent is 0, return an indicator that a matching 77 * resource exists. 78 */ 79int 80print_device_matching_resource(struct devinfo_res *res, void *arg) 81{ 82 struct indent_arg *ia = (struct indent_arg *)arg; 83 struct devinfo_dev *dev = (struct devinfo_dev *)ia->arg; 84 int i; 85 86 if (devinfo_handle_to_device(res->dr_device) == dev) { 87 /* in 'detect' mode, found a match */ 88 if (ia->indent == 0) 89 return(1); 90 for (i = 0; i < ia->indent; i++) 91 printf(" "); 92 print_resource(res); 93 printf("\n"); 94 } 95 return(0); 96} 97 98/* 99 * Print resource information for this device and resource manager. 100 */ 101int 102print_device_rman_resources(struct devinfo_rman *rman, void *arg) 103{ 104 struct indent_arg *ia = (struct indent_arg *)arg; 105 struct devinfo_dev *dev; 106 int indent, i; 107 108 indent = ia->indent; 109 dev = (struct devinfo_dev *)ia->arg; 110 111 /* check whether there are any resources matching this device */ 112 ia->indent = 0; 113 if (devinfo_foreach_rman_resource(rman, 114 print_device_matching_resource, ia) != 0) { 115 116 /* there are, print header */ 117 for (i = 0; i < indent; i++) 118 printf(" "); 119 printf("%s:\n", rman->dm_desc); 120 121 /* print resources */ 122 ia->indent = indent + 4; 123 devinfo_foreach_rman_resource(rman, 124 print_device_matching_resource, ia); 125 } 126 ia->indent = indent; 127 return(0); 128} 129 130/* 131 * Print information about a device. 132 */ 133int 134print_device(struct devinfo_dev *dev, void *arg) 135{ 136 struct indent_arg ia; 137 int i, indent; 138 139 if (dev->dd_name[0] != 0) { 140 indent = (int)(intptr_t)arg; 141 for (i = 0; i < indent; i++) 142 printf(" "); 143 printf("%s\n", dev->dd_name); 144 if (rflag) { 145 ia.indent = indent + 4; 146 ia.arg = dev; 147 devinfo_foreach_rman(print_device_rman_resources, 148 (void *)&ia); 149 } 150 } 151 152 return(devinfo_foreach_device_child(dev, print_device, 153 (void *)((char *)arg + 2))); 154} 155 156/* 157 * Print information about a resource under a resource manager. 158 */ 159int 160print_rman_resource(struct devinfo_res *res, void *arg __unused) 161{ 162 struct devinfo_dev *dev; 163 164 printf(" "); 165 print_resource(res); 166 dev = devinfo_handle_to_device(res->dr_device); 167 if ((dev != NULL) && (dev->dd_name[0] != 0)) { 168 printf(" (%s)", dev->dd_name); 169 } else { 170 printf(" ----"); 171 } 172 printf("\n"); 173 return(0); 174} 175 176/* 177 * Print information about a resource manager. 178 */ 179int 180print_rman(struct devinfo_rman *rman, void *arg __unused) 181{ 182 printf("%s:\n", rman->dm_desc); 183 devinfo_foreach_rman_resource(rman, print_rman_resource, 0); 184 return(0); 185} 186 187int 188main(int argc, char *argv[]) 189{ 190 struct devinfo_dev *root; 191 int c, uflag; 192 193 uflag = 0; 194 while ((c = getopt(argc, argv, "ru")) != -1) { 195 switch(c) { 196 case 'r': 197 rflag++; 198 break; 199 case 'u': 200 uflag++; 201 break; 202 default: 203 errx(1, "usage: %s [-ru]", argv[0]); 204 } 205 } 206 207 if (devinfo_init()) 208 err(1, "devinfo_init"); 209 210 if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL) 211 errx(1, "can't find root device"); 212 213 /* print resource usage? */ 214 if (uflag) { 215 devinfo_foreach_rman(print_rman, NULL); 216 } else { 217 /* print device hierarchy */ 218 devinfo_foreach_device_child(root, print_device, (void *)0); 219 } 220 return(0); 221} 222