1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2001
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 */
20 #include <fcntl.h>
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <errno.h>
24 #include <sys/stat.h>
25 #include <sys/ioctl.h>
26 #include <linux/kernel.h>
27 #include <linux/errno.h>
28 #include "../tusb/tusb.h"
29
30 static int tusb_fd = -1; //file descriptor
31
tusbopen()32 int tusbopen()
33 {
34
35 dev_t devt;
36 struct stat st;
37 int rc = 0;
38
39 devt = makedev(TUSB_MAJOR, 0);
40
41 if (rc) {
42 if (errno == ENOENT) {
43 /* dev node does not exist. */
44 rc = mkdir(DEVICE_NAME, (S_IFDIR | S_IRWXU |
45 S_IRGRP | S_IXGRP |
46 S_IROTH | S_IXOTH));
47 } else {
48 printf
49 ("ERROR: Problem with Base dev directory. Error code from stat() is %d\n\n",
50 errno);
51 }
52
53 } else {
54 if (!(st.st_mode & S_IFDIR)) {
55 rc = unlink(DEVICE_NAME);
56 if (!rc) {
57 rc = mkdir(DEVICE_NAME, (S_IFDIR | S_IRWXU |
58 S_IRGRP | S_IXGRP |
59 S_IROTH | S_IXOTH));
60 }
61 }
62 }
63
64 /*
65 * Check for the /dev/tbase node, and create if it does not
66 * exist.
67 */
68 rc = stat(DEVICE_NAME, &st);
69 if (rc) {
70 if (errno == ENOENT) {
71 /* dev node does not exist */
72 rc = mknod(DEVICE_NAME,
73 (S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP |
74 S_IWGRP), devt);
75 } else {
76 printf
77 ("ERROR:Problem with tbase device node directory. Error code form stat() is %d\n\n",
78 errno);
79 }
80
81 } else {
82 /*
83 * /dev/tbase CHR device exists. Check to make sure it is for a
84 * block device and that it has the right major and minor.
85 */
86 if ((!(st.st_mode & S_IFCHR)) || (st.st_rdev != devt)) {
87
88 /* Recreate the dev node. */
89 rc = unlink(DEVICE_NAME);
90 if (!rc) {
91 rc = mknod(DEVICE_NAME,
92 (S_IFCHR | S_IRUSR | S_IWUSR |
93 S_IRGRP | S_IWGRP), devt);
94 }
95 }
96 }
97
98 tusb_fd = open(DEVICE_NAME, O_RDWR);
99
100 if (tusb_fd < 0) {
101 printf("ERROR: Open of device %s failed %d errno = %d\n",
102 DEVICE_NAME, tusb_fd, errno);
103 return errno;
104 } else {
105 printf("Device opened successfully \n");
106 return 0;
107 }
108
109 }
110
tusbclose()111 int tusbclose()
112 {
113 /*
114 * Close the tusb driver
115 */
116 if (tusb_fd != -1) {
117 close(tusb_fd);
118 tusb_fd = -1;
119 }
120
121 return 0;
122 }
123
main()124 int main()
125 {
126 int rc = 0;
127
128 rc = tusbopen();
129 if (rc) {
130 printf("tusb driver may not be loaded\n");
131 exit(1);
132 }
133
134 /* test find device pointer */
135 if (ki_generic(tusb_fd, FIND_DEV))
136 printf("Failed to find usb device pointer\n");
137 else
138 printf("Found usb device pointer\n");
139
140 /* test find usb hostcontroller */
141 if (ki_generic(tusb_fd, TEST_FIND_HCD))
142 printf("Failed to find usb hcd pointer\n");
143 else
144 printf("Found usb hcd pointer\n");
145
146 /* test hcd probe */
147 if (ki_generic(tusb_fd, TEST_HCD_PROBE))
148 printf("Failed on hcd probe call\n");
149 else
150 printf("Success hcd probe\n");
151
152 /* test hcd suspend */
153 if (ki_generic(tusb_fd, TEST_HCD_SUSPEND))
154 printf("Failed on hcd suspend call\n");
155 else
156 printf("Success hcd suspend\n");
157
158 /* test hcd resume */
159 if (ki_generic(tusb_fd, TEST_HCD_RESUME))
160 printf("Failed on hcd resume call\n");
161 else
162 printf("Success hcd resume\n");
163
164 #if 0
165 /* test hcd remove */
166 if (ki_generic(tusb_fd, TEST_HCD_REMOVE))
167 printf("Failed on hcd remove call\n");
168 else
169 printf("Success hcd remove\n");
170 #endif
171
172 tusbclose();
173
174 tst_exit();
175 }
176