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 */
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 <stdlib.h>
38 #include <unistd.h>
39 #include "devinfo.h"
40
41 int rflag;
42 int vflag;
43
44 static void print_resource(struct devinfo_res *);
45 static int print_device_matching_resource(struct devinfo_res *, void *);
46 static int print_device_rman_resources(struct devinfo_rman *, void *);
47 static int print_device(struct devinfo_dev *, void *);
48 static int print_rman_resource(struct devinfo_res *, void *);
49 static int print_rman(struct devinfo_rman *, void *);
50
51 struct indent_arg
52 {
53 int indent;
54 void *arg;
55 };
56
57 /*
58 * Print a resource.
59 */
60 void
print_resource(struct devinfo_res * res)61 print_resource(struct devinfo_res *res)
62 {
63 struct devinfo_rman *rman;
64 int hexmode;
65
66 rman = devinfo_handle_to_rman(res->dr_rman);
67 hexmode = (rman->dm_size > 1000) || (rman->dm_size == 0);
68 printf(hexmode ? "0x%lx" : "%lu", res->dr_start);
69 if (res->dr_size > 1)
70 printf(hexmode ? "-0x%lx" : "-%lu",
71 res->dr_start + res->dr_size - 1);
72 }
73
74 /*
75 * Print resource information if this resource matches the
76 * given device.
77 *
78 * If the given indent is 0, return an indicator that a matching
79 * resource exists.
80 */
81 int
print_device_matching_resource(struct devinfo_res * res,void * arg)82 print_device_matching_resource(struct devinfo_res *res, void *arg)
83 {
84 struct indent_arg *ia = (struct indent_arg *)arg;
85 struct devinfo_dev *dev = (struct devinfo_dev *)ia->arg;
86 int i;
87
88 if (devinfo_handle_to_device(res->dr_device) == dev) {
89 /* in 'detect' mode, found a match */
90 if (ia->indent == 0)
91 return(1);
92 for (i = 0; i < ia->indent; i++)
93 printf(" ");
94 print_resource(res);
95 printf("\n");
96 }
97 return(0);
98 }
99
100 /*
101 * Print resource information for this device and resource manager.
102 */
103 int
print_device_rman_resources(struct devinfo_rman * rman,void * arg)104 print_device_rman_resources(struct devinfo_rman *rman, void *arg)
105 {
106 struct indent_arg *ia = (struct indent_arg *)arg;
107 int indent, i;
108
109 indent = ia->indent;
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 */
133 int
print_device(struct devinfo_dev * dev,void * arg)134 print_device(struct devinfo_dev *dev, void *arg)
135 {
136 struct indent_arg ia;
137 int i, indent;
138
139 if (vflag > 1 ||
140 (vflag && (dev->dd_flags & DIF_ENABLED)) ||
141 (dev->dd_name[0] != 0 && dev->dd_state >= DS_INPROGRESS)) {
142 indent = (int)(intptr_t)arg;
143 for (i = 0; i < indent; i++)
144 printf(" ");
145 if (vflag && (dev->dd_flags & DIF_ENABLED) == 0) {
146 if (dev->dd_name[0])
147 printf("%s", dev->dd_name);
148 printf("(disabled)");
149 } else {
150 printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown");
151 }
152 if (vflag && *dev->dd_pnpinfo)
153 printf(" pnpinfo %s", dev->dd_pnpinfo);
154 if (vflag && *dev->dd_location)
155 printf(" at %s", dev->dd_location);
156 printf("\n");
157 if (rflag) {
158 ia.indent = indent + 4;
159 ia.arg = dev;
160 devinfo_foreach_rman(print_device_rman_resources,
161 (void *)&ia);
162 }
163 }
164
165 return(devinfo_foreach_device_child(dev, print_device,
166 (void *)((char *)arg + 2)));
167 }
168
169 /*
170 * Print information about a resource under a resource manager.
171 */
172 int
print_rman_resource(struct devinfo_res * res,void * arg __unused)173 print_rman_resource(struct devinfo_res *res, void *arg __unused)
174 {
175 struct devinfo_dev *dev;
176
177 printf(" ");
178 print_resource(res);
179 dev = devinfo_handle_to_device(res->dr_device);
180 if ((dev != NULL) && (dev->dd_name[0] != 0)) {
181 printf(" (%s)", dev->dd_name);
182 } else {
183 printf(" ----");
184 }
185 printf("\n");
186 return(0);
187 }
188
189 /*
190 * Print information about a resource manager.
191 */
192 int
print_rman(struct devinfo_rman * rman,void * arg __unused)193 print_rman(struct devinfo_rman *rman, void *arg __unused)
194 {
195 printf("%s:\n", rman->dm_desc);
196 devinfo_foreach_rman_resource(rman, print_rman_resource, 0);
197 return(0);
198 }
199
200 int
main(int argc,char * argv[])201 main(int argc, char *argv[])
202 {
203 struct devinfo_dev *root;
204 int c, uflag;
205
206 uflag = 0;
207 while ((c = getopt(argc, argv, "ruv")) != -1) {
208 switch(c) {
209 case 'r':
210 rflag++;
211 break;
212 case 'u':
213 uflag++;
214 break;
215 case 'v':
216 vflag++;
217 break;
218 default:
219 fprintf(stderr, "%s\n%s\n",
220 "usage: devinfo [-rv]",
221 " devinfo -u");
222 exit(1);
223 }
224 }
225
226 if (devinfo_init())
227 err(1, "devinfo_init");
228
229 if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL)
230 errx(1, "can't find root device");
231
232 /* print resource usage? */
233 if (uflag) {
234 devinfo_foreach_rman(print_rman, NULL);
235 } else {
236 /* print device hierarchy */
237 devinfo_foreach_device_child(root, print_device, NULL);
238 }
239 return(0);
240 }
241