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
28/*
29 * Print information about system device configuration.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
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
42static int	rflag;
43static int	vflag;
44
45static void	print_resource(struct devinfo_res *);
46static int	print_device_matching_resource(struct devinfo_res *, void *);
47static int	print_device_rman_resources(struct devinfo_rman *, void *);
48static int	print_device(struct devinfo_dev *, void *);
49static int	print_rman_resource(struct devinfo_res *, void *);
50static int	print_rman(struct devinfo_rman *, void *);
51
52struct indent_arg
53{
54	int	indent;
55	void	*arg;
56};
57
58/*
59 * Print a resource.
60 */
61void
62print_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 */
82int
83print_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 */
104int
105print_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 */
134int
135print_device(struct devinfo_dev *dev, void *arg)
136{
137	struct indent_arg	ia;
138	int			i, indent;
139
140	if (vflag || (dev->dd_name[0] != 0 && dev->dd_state >= DS_ATTACHED)) {
141		indent = (int)(intptr_t)arg;
142		for (i = 0; i < indent; i++)
143			printf(" ");
144		printf("%s", dev->dd_name[0] ? dev->dd_name : "unknown");
145		if (vflag && *dev->dd_pnpinfo)
146			printf(" pnpinfo %s", dev->dd_pnpinfo);
147		if (vflag && *dev->dd_location)
148			printf(" at %s", dev->dd_location);
149		printf("\n");
150		if (rflag) {
151			ia.indent = indent + 4;
152			ia.arg = dev;
153			devinfo_foreach_rman(print_device_rman_resources,
154			    (void *)&ia);
155		}
156	}
157
158	return(devinfo_foreach_device_child(dev, print_device,
159	    (void *)((char *)arg + 2)));
160}
161
162/*
163 * Print information about a resource under a resource manager.
164 */
165int
166print_rman_resource(struct devinfo_res *res, void *arg __unused)
167{
168	struct devinfo_dev	*dev;
169
170	printf("    ");
171	print_resource(res);
172	dev = devinfo_handle_to_device(res->dr_device);
173	if ((dev != NULL) && (dev->dd_name[0] != 0)) {
174		printf(" (%s)", dev->dd_name);
175	} else {
176		printf(" ----");
177	}
178	printf("\n");
179	return(0);
180}
181
182/*
183 * Print information about a resource manager.
184 */
185int
186print_rman(struct devinfo_rman *rman, void *arg __unused)
187{
188	printf("%s:\n", rman->dm_desc);
189	devinfo_foreach_rman_resource(rman, print_rman_resource, 0);
190	return(0);
191}
192
193int
194main(int argc, char *argv[])
195{
196	struct devinfo_dev	*root;
197	int			c, uflag;
198
199	uflag = 0;
200	while ((c = getopt(argc, argv, "ruv")) != -1) {
201		switch(c) {
202		case 'r':
203			rflag++;
204			break;
205		case 'u':
206			uflag++;
207			break;
208		case 'v':
209			vflag++;
210			break;
211		default:
212			fprintf(stderr, "%s\n%s\n",
213			    "usage: devinfo [-rv]",
214			    "       devinfo -u");
215			exit(1);
216		}
217	}
218
219	if (devinfo_init())
220		err(1, "devinfo_init");
221
222	if ((root = devinfo_handle_to_device(DEVINFO_ROOT_DEVICE)) == NULL)
223		errx(1, "can't find root device");
224
225	/* print resource usage? */
226	if (uflag) {
227		devinfo_foreach_rman(print_rman, NULL);
228	} else {
229		/* print device hierarchy */
230		devinfo_foreach_device_child(root, print_device, (void *)0);
231	}
232	return(0);
233}
234