1 /*
2 * Copyright (c) 2014 Jean-Sebastien Pedron <dumbbell@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
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(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/types.h>
28
29 #include <dirent.h>
30 #include <fcntl.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <unistd.h>
35
36 #include <libdevq.h>
37
38 #define DRIDEV_DIR "/dev/dri"
39
40 int
print_drm_info(int fd)41 print_drm_info(int fd)
42 {
43 int ret;
44 int vendor_id, device_id, subvendor_id, subdevice_id, revision_id;
45 char *device_path, *driver_name;
46 size_t device_path_len, driver_name_len;
47
48 ret = devq_device_get_devpath_from_fd(fd,
49 NULL, &device_path_len);
50 if (ret < 0) {
51 fprintf(stderr, "Warning: unable to device path\n");
52 return (-1);
53 }
54
55 device_path = malloc(device_path_len);
56 ret = devq_device_get_devpath_from_fd(fd,
57 device_path, &device_path_len);
58 if (ret < 0) {
59 fprintf(stderr, "Warning: Unable to device path\n");
60 return (-1);
61 }
62
63 printf("%.*s:\n", (int)device_path_len, device_path);
64 free(device_path);
65 device_path = NULL;
66
67 ret = devq_device_drm_get_drvname_from_fd(fd, NULL, &driver_name_len);
68 if (ret < 0) {
69 printf(" Driver name: Unknown\n");
70 return (-1);
71 }
72
73 driver_name = malloc(driver_name_len);
74 ret = devq_device_drm_get_drvname_from_fd(fd,
75 driver_name, &driver_name_len);
76 if (ret < 0) {
77 fprintf(stderr, "Warning: Unable to determine driver name\n");
78 return (-1);
79 }
80
81 printf(" Driver name: %.*s\n", (int)driver_name_len, driver_name);
82 free(driver_name);
83 driver_name = NULL;
84
85 ret = devq_device_get_pciid_full_from_fd(fd, &vendor_id, &device_id,
86 &subvendor_id, &subdevice_id, &revision_id);
87 if (ret < 0) {
88 fprintf(stderr, "Warning: Unable to determine vendor and device ID\n");
89 return (-1);
90 }
91
92 printf(" PCI vendor ID: 0x%04x subvendor ID: 0x%04x\n", vendor_id, subvendor_id);
93 printf(" PCI device ID: 0x%04x subdevice ID: 0x%04x\n", device_id, subdevice_id);
94 printf(" PCI revision ID: 0x%04x\n", revision_id);
95
96 return (0);
97 }
98
99 int
main(int argc,char * argv[])100 main(int argc, char *argv[])
101 {
102 int fd;
103
104 if (argc >= 2) {
105 for (int i = 1; i < argc; ++i) {
106 fd = open(argv[i], O_RDWR);
107 if (fd < 0) {
108 fprintf(stderr, "%s\n", argv[i]);
109 continue;
110 }
111
112 print_drm_info(fd);
113 close(fd);
114 }
115 } else {
116 DIR *dir;
117 struct dirent *dp;
118 char path[256];
119
120 dir = opendir(DRIDEV_DIR);
121 if (dir == NULL)
122 return (-1);
123
124 while ((dp = readdir(dir)) != NULL) {
125 if (dp->d_name[0] == '.')
126 continue;
127
128 path[0] = '\0';
129 strcpy(path, DRIDEV_DIR);
130 strcat(path, "/");
131 strcat(path, dp->d_name);
132
133 fd = open(path, O_RDWR);
134 if (fd < 0) {
135 fprintf(stderr, "%s\n", path);
136 continue;
137 }
138
139 print_drm_info(fd);
140 close(fd);
141 }
142
143 closedir(dir);
144 }
145
146 return (0);
147 }
148