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1// SPDX-License-Identifier: GPL-2.0-or-later
2/* $(CROSS_COMPILE)cc -Wall -Wextra -g -lpthread -o testusb testusb.c */
3
4/*
5 * Copyright (c) 2002 by David Brownell
6 * Copyright (c) 2010 by Samsung Electronics
7 * Author: Michal Nazarewicz <mina86@mina86.com>
8 */
9
10/*
11 * This program issues ioctls to perform the tests implemented by the
12 * kernel driver. It can generate a variety of transfer patterns; you
13 * should make sure to test both regular streaming and mixes of
14 * transfer sizes (including short transfers).
15 *
16 * For more information on how this can be used and on USB testing
17 * refer to <URL:http://www.linux-usb.org/usbtest/>.
18 */
19
20#include <stdio.h>
21#include <string.h>
22#include <ftw.h>
23#include <stdlib.h>
24#include <pthread.h>
25#include <unistd.h>
26#include <errno.h>
27#include <limits.h>
28
29#include <sys/types.h>
30#include <sys/stat.h>
31#include <fcntl.h>
32
33#include <sys/ioctl.h>
34#include <linux/usbdevice_fs.h>
35
36/*-------------------------------------------------------------------------*/
37
38#define TEST_CASES 30
39
40// FIXME make these public somewhere; usbdevfs.h?
41
42struct usbtest_param {
43 // inputs
44 unsigned test_num; /* 0..(TEST_CASES-1) */
45 unsigned iterations;
46 unsigned length;
47 unsigned vary;
48 unsigned sglen;
49
50 // outputs
51 struct timeval duration;
52};
53#define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
54
55/*-------------------------------------------------------------------------*/
56
57/* #include <linux/usb_ch9.h> */
58
59#define USB_DT_DEVICE 0x01
60#define USB_DT_INTERFACE 0x04
61
62#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
63#define USB_CLASS_VENDOR_SPEC 0xff
64
65
66struct usb_device_descriptor {
67 __u8 bLength;
68 __u8 bDescriptorType;
69 __u16 bcdUSB;
70 __u8 bDeviceClass;
71 __u8 bDeviceSubClass;
72 __u8 bDeviceProtocol;
73 __u8 bMaxPacketSize0;
74 __u16 idVendor;
75 __u16 idProduct;
76 __u16 bcdDevice;
77 __u8 iManufacturer;
78 __u8 iProduct;
79 __u8 iSerialNumber;
80 __u8 bNumConfigurations;
81} __attribute__ ((packed));
82
83struct usb_interface_descriptor {
84 __u8 bLength;
85 __u8 bDescriptorType;
86
87 __u8 bInterfaceNumber;
88 __u8 bAlternateSetting;
89 __u8 bNumEndpoints;
90 __u8 bInterfaceClass;
91 __u8 bInterfaceSubClass;
92 __u8 bInterfaceProtocol;
93 __u8 iInterface;
94} __attribute__ ((packed));
95
96enum usb_device_speed {
97 USB_SPEED_UNKNOWN = 0, /* enumerating */
98 USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */
99 USB_SPEED_HIGH /* usb 2.0 */
100};
101
102/*-------------------------------------------------------------------------*/
103
104static char *speed (enum usb_device_speed s)
105{
106 switch (s) {
107 case USB_SPEED_UNKNOWN: return "unknown";
108 case USB_SPEED_LOW: return "low";
109 case USB_SPEED_FULL: return "full";
110 case USB_SPEED_HIGH: return "high";
111 default: return "??";
112 }
113}
114
115struct testdev {
116 struct testdev *next;
117 char *name;
118 pthread_t thread;
119 enum usb_device_speed speed;
120 unsigned ifnum : 8;
121 unsigned forever : 1;
122 int test;
123
124 struct usbtest_param param;
125};
126static struct testdev *testdevs;
127
128static int testdev_ffs_ifnum(FILE *fd)
129{
130 union {
131 char buf[255];
132 struct usb_interface_descriptor intf;
133 } u;
134
135 for (;;) {
136 if (fread(u.buf, 1, 1, fd) != 1)
137 return -1;
138 if (fread(u.buf + 1, (unsigned char)u.buf[0] - 1, 1, fd) != 1)
139 return -1;
140
141 if (u.intf.bLength == sizeof u.intf
142 && u.intf.bDescriptorType == USB_DT_INTERFACE
143 && u.intf.bNumEndpoints == 2
144 && u.intf.bInterfaceClass == USB_CLASS_VENDOR_SPEC
145 && u.intf.bInterfaceSubClass == 0
146 && u.intf.bInterfaceProtocol == 0)
147 return (unsigned char)u.intf.bInterfaceNumber;
148 }
149}
150
151static int testdev_ifnum(FILE *fd)
152{
153 struct usb_device_descriptor dev;
154
155 if (fread(&dev, sizeof dev, 1, fd) != 1)
156 return -1;
157
158 if (dev.bLength != sizeof dev || dev.bDescriptorType != USB_DT_DEVICE)
159 return -1;
160
161 /* FX2 with (tweaked) bulksrc firmware */
162 if (dev.idVendor == 0x0547 && dev.idProduct == 0x1002)
163 return 0;
164
165 /*----------------------------------------------------*/
166
167 /* devices that start up using the EZ-USB default device and
168 * which we can use after loading simple firmware. hotplug
169 * can fxload it, and then run this test driver.
170 *
171 * we return false positives in two cases:
172 * - the device has a "real" driver (maybe usb-serial) that
173 * renumerates. the device should vanish quickly.
174 * - the device doesn't have the test firmware installed.
175 */
176
177 /* generic EZ-USB FX controller */
178 if (dev.idVendor == 0x0547 && dev.idProduct == 0x2235)
179 return 0;
180
181 /* generic EZ-USB FX2 controller */
182 if (dev.idVendor == 0x04b4 && dev.idProduct == 0x8613)
183 return 0;
184
185 /* CY3671 development board with EZ-USB FX */
186 if (dev.idVendor == 0x0547 && dev.idProduct == 0x0080)
187 return 0;
188
189 /* Keyspan 19Qi uses an21xx (original EZ-USB) */
190 if (dev.idVendor == 0x06cd && dev.idProduct == 0x010b)
191 return 0;
192
193 /*----------------------------------------------------*/
194
195 /* "gadget zero", Linux-USB test software */
196 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a0)
197 return 0;
198
199 /* user mode subset of that */
200 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a4)
201 return testdev_ffs_ifnum(fd);
202 /* return 0; */
203
204 /* iso version of usermode code */
205 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a3)
206 return 0;
207
208 /* some GPL'd test firmware uses these IDs */
209
210 if (dev.idVendor == 0xfff0 && dev.idProduct == 0xfff0)
211 return 0;
212
213 /*----------------------------------------------------*/
214
215 /* iBOT2 high speed webcam */
216 if (dev.idVendor == 0x0b62 && dev.idProduct == 0x0059)
217 return 0;
218
219 /*----------------------------------------------------*/
220
221 /* the FunctionFS gadget can have the source/sink interface
222 * anywhere. We look for an interface descriptor that match
223 * what we expect. We ignore configuratiens thou. */
224
225 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4ac
226 && (dev.bDeviceClass == USB_CLASS_PER_INTERFACE
227 || dev.bDeviceClass == USB_CLASS_VENDOR_SPEC))
228 return testdev_ffs_ifnum(fd);
229
230 return -1;
231}
232
233static int find_testdev(const char *name, const struct stat *sb, int flag)
234{
235 FILE *fd;
236 int ifnum;
237 struct testdev *entry;
238
239 (void)sb; /* unused */
240
241 if (flag != FTW_F)
242 return 0;
243
244 fd = fopen(name, "rb");
245 if (!fd) {
246 perror(name);
247 return 0;
248 }
249
250 ifnum = testdev_ifnum(fd);
251 fclose(fd);
252 if (ifnum < 0)
253 return 0;
254
255 entry = calloc(1, sizeof *entry);
256 if (!entry)
257 goto nomem;
258
259 entry->name = strdup(name);
260 if (!entry->name) {
261 free(entry);
262nomem:
263 perror("malloc");
264 return 0;
265 }
266
267 entry->ifnum = ifnum;
268
269 /* FIXME update USBDEVFS_CONNECTINFO so it tells about high speed etc */
270
271 fprintf(stderr, "%s speed\t%s\t%u\n",
272 speed(entry->speed), entry->name, entry->ifnum);
273
274 entry->next = testdevs;
275 testdevs = entry;
276 return 0;
277}
278
279static int
280usbdev_ioctl (int fd, int ifno, unsigned request, void *param)
281{
282 struct usbdevfs_ioctl wrapper;
283
284 wrapper.ifno = ifno;
285 wrapper.ioctl_code = request;
286 wrapper.data = param;
287
288 return ioctl (fd, USBDEVFS_IOCTL, &wrapper);
289}
290
291static void *handle_testdev (void *arg)
292{
293 struct testdev *dev = arg;
294 int fd, i;
295 int status;
296
297 if ((fd = open (dev->name, O_RDWR)) < 0) {
298 perror ("can't open dev file r/w");
299 return 0;
300 }
301
302restart:
303 for (i = 0; i < TEST_CASES; i++) {
304 if (dev->test != -1 && dev->test != i)
305 continue;
306 dev->param.test_num = i;
307
308 status = usbdev_ioctl (fd, dev->ifnum,
309 USBTEST_REQUEST, &dev->param);
310 if (status < 0 && errno == EOPNOTSUPP)
311 continue;
312
313 /* FIXME need a "syslog it" option for background testing */
314
315 /* NOTE: each thread emits complete lines; no fragments! */
316 if (status < 0) {
317 char buf [80];
318 int err = errno;
319
320 if (strerror_r (errno, buf, sizeof buf)) {
321 snprintf (buf, sizeof buf, "error %d", err);
322 errno = err;
323 }
324 printf ("%s test %d --> %d (%s)\n",
325 dev->name, i, errno, buf);
326 } else
327 printf ("%s test %d, %4d.%.06d secs\n", dev->name, i,
328 (int) dev->param.duration.tv_sec,
329 (int) dev->param.duration.tv_usec);
330
331 fflush (stdout);
332 }
333 if (dev->forever)
334 goto restart;
335
336 close (fd);
337 return arg;
338}
339
340static const char *usb_dir_find(void)
341{
342 static char udev_usb_path[] = "/dev/bus/usb";
343
344 if (access(udev_usb_path, F_OK) == 0)
345 return udev_usb_path;
346
347 return NULL;
348}
349
350static int parse_num(unsigned *num, const char *str)
351{
352 unsigned long val;
353 char *end;
354
355 errno = 0;
356 val = strtoul(str, &end, 0);
357 if (errno || *end || val > UINT_MAX)
358 return -1;
359 *num = val;
360 return 0;
361}
362
363int main (int argc, char **argv)
364{
365
366 int c;
367 struct testdev *entry;
368 char *device;
369 const char *usb_dir = NULL;
370 int all = 0, forever = 0, not = 0;
371 int test = -1 /* all */;
372 struct usbtest_param param;
373
374 /* pick defaults that works with all speeds, without short packets.
375 *
376 * Best per-frame data rates:
377 * super speed,bulk 1024 * 16 * 8 = 131072
378 * interrupt 1024 * 3 * 8 = 24576
379 * high speed, bulk 512 * 13 * 8 = 53248
380 * interrupt 1024 * 3 * 8 = 24576
381 * full speed, bulk/intr 64 * 19 = 1216
382 * interrupt 64 * 1 = 64
383 * low speed, interrupt 8 * 1 = 8
384 */
385 param.iterations = 1000;
386 param.length = 1024;
387 param.vary = 1024;
388 param.sglen = 32;
389
390 /* for easy use when hotplugging */
391 device = getenv ("DEVICE");
392
393 while ((c = getopt (argc, argv, "D:aA:c:g:hlns:t:v:")) != EOF)
394 switch (c) {
395 case 'D': /* device, if only one */
396 device = optarg;
397 continue;
398 case 'A': /* use all devices with specified USB dir */
399 usb_dir = optarg;
400 /* FALL THROUGH */
401 case 'a': /* use all devices */
402 device = NULL;
403 all = 1;
404 continue;
405 case 'c': /* count iterations */
406 if (parse_num(¶m.iterations, optarg))
407 goto usage;
408 continue;
409 case 'g': /* scatter/gather entries */
410 if (parse_num(¶m.sglen, optarg))
411 goto usage;
412 continue;
413 case 'l': /* loop forever */
414 forever = 1;
415 continue;
416 case 'n': /* no test running! */
417 not = 1;
418 continue;
419 case 's': /* size of packet */
420 if (parse_num(¶m.length, optarg))
421 goto usage;
422 continue;
423 case 't': /* run just one test */
424 test = atoi (optarg);
425 if (test < 0)
426 goto usage;
427 continue;
428 case 'v': /* vary packet size by ... */
429 if (parse_num(¶m.vary, optarg))
430 goto usage;
431 continue;
432 case '?':
433 case 'h':
434 default:
435usage:
436 fprintf (stderr,
437 "usage: %s [options]\n"
438 "Options:\n"
439 "\t-D dev only test specific device\n"
440 "\t-A usb-dir\n"
441 "\t-a test all recognized devices\n"
442 "\t-l loop forever(for stress test)\n"
443 "\t-t testnum only run specified case\n"
444 "\t-n no test running, show devices to be tested\n"
445 "Case arguments:\n"
446 "\t-c iterations default 1000\n"
447 "\t-s transfer length default 1024\n"
448 "\t-g sglen default 32\n"
449 "\t-v vary default 1024\n",
450 argv[0]);
451 return 1;
452 }
453 if (optind != argc)
454 goto usage;
455 if (!all && !device) {
456 fprintf (stderr, "must specify '-a' or '-D dev', "
457 "or DEVICE=/dev/bus/usb/BBB/DDD in env\n");
458 goto usage;
459 }
460
461 /* Find usb device subdirectory */
462 if (!usb_dir) {
463 usb_dir = usb_dir_find();
464 if (!usb_dir) {
465 fputs ("USB device files are missing\n", stderr);
466 return -1;
467 }
468 }
469
470 /* collect and list the test devices */
471 if (ftw (usb_dir, find_testdev, 3) != 0) {
472 fputs ("ftw failed; are USB device files missing?\n", stderr);
473 return -1;
474 }
475
476 /* quit, run single test, or create test threads */
477 if (!testdevs && !device) {
478 fputs ("no test devices recognized\n", stderr);
479 return -1;
480 }
481 if (not)
482 return 0;
483 if (testdevs && testdevs->next == 0 && !device)
484 device = testdevs->name;
485 for (entry = testdevs; entry; entry = entry->next) {
486 int status;
487
488 entry->param = param;
489 entry->forever = forever;
490 entry->test = test;
491
492 if (device) {
493 if (strcmp (entry->name, device))
494 continue;
495 return handle_testdev (entry) != entry;
496 }
497 status = pthread_create (&entry->thread, 0, handle_testdev, entry);
498 if (status)
499 perror ("pthread_create");
500 }
501 if (device) {
502 struct testdev dev;
503
504 /* kernel can recognize test devices we don't */
505 fprintf (stderr, "%s: %s may see only control tests\n",
506 argv [0], device);
507
508 memset (&dev, 0, sizeof dev);
509 dev.name = device;
510 dev.param = param;
511 dev.forever = forever;
512 dev.test = test;
513 return handle_testdev (&dev) != &dev;
514 }
515
516 /* wait for tests to complete */
517 for (entry = testdevs; entry; entry = entry->next) {
518 void *retval;
519
520 if (pthread_join (entry->thread, &retval))
521 perror ("pthread_join");
522 /* testing errors discarded! */
523 }
524
525 return 0;
526}
1/* $(CROSS_COMPILE)cc -Wall -Wextra -g -lpthread -o testusb testusb.c */
2
3/*
4 * Copyright (c) 2002 by David Brownell
5 * Copyright (c) 2010 by Samsung Electronics
6 * Author: Michal Nazarewicz <mina86@mina86.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23/*
24 * This program issues ioctls to perform the tests implemented by the
25 * kernel driver. It can generate a variety of transfer patterns; you
26 * should make sure to test both regular streaming and mixes of
27 * transfer sizes (including short transfers).
28 *
29 * For more information on how this can be used and on USB testing
30 * refer to <URL:http://www.linux-usb.org/usbtest/>.
31 */
32
33#include <stdio.h>
34#include <string.h>
35#include <ftw.h>
36#include <stdlib.h>
37#include <pthread.h>
38#include <unistd.h>
39#include <errno.h>
40#include <limits.h>
41
42#include <sys/types.h>
43#include <sys/stat.h>
44#include <fcntl.h>
45
46#include <sys/ioctl.h>
47#include <linux/usbdevice_fs.h>
48
49/*-------------------------------------------------------------------------*/
50
51#define TEST_CASES 30
52
53// FIXME make these public somewhere; usbdevfs.h?
54
55struct usbtest_param {
56 // inputs
57 unsigned test_num; /* 0..(TEST_CASES-1) */
58 unsigned iterations;
59 unsigned length;
60 unsigned vary;
61 unsigned sglen;
62
63 // outputs
64 struct timeval duration;
65};
66#define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
67
68/*-------------------------------------------------------------------------*/
69
70/* #include <linux/usb_ch9.h> */
71
72#define USB_DT_DEVICE 0x01
73#define USB_DT_INTERFACE 0x04
74
75#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */
76#define USB_CLASS_VENDOR_SPEC 0xff
77
78
79struct usb_device_descriptor {
80 __u8 bLength;
81 __u8 bDescriptorType;
82 __u16 bcdUSB;
83 __u8 bDeviceClass;
84 __u8 bDeviceSubClass;
85 __u8 bDeviceProtocol;
86 __u8 bMaxPacketSize0;
87 __u16 idVendor;
88 __u16 idProduct;
89 __u16 bcdDevice;
90 __u8 iManufacturer;
91 __u8 iProduct;
92 __u8 iSerialNumber;
93 __u8 bNumConfigurations;
94} __attribute__ ((packed));
95
96struct usb_interface_descriptor {
97 __u8 bLength;
98 __u8 bDescriptorType;
99
100 __u8 bInterfaceNumber;
101 __u8 bAlternateSetting;
102 __u8 bNumEndpoints;
103 __u8 bInterfaceClass;
104 __u8 bInterfaceSubClass;
105 __u8 bInterfaceProtocol;
106 __u8 iInterface;
107} __attribute__ ((packed));
108
109enum usb_device_speed {
110 USB_SPEED_UNKNOWN = 0, /* enumerating */
111 USB_SPEED_LOW, USB_SPEED_FULL, /* usb 1.1 */
112 USB_SPEED_HIGH /* usb 2.0 */
113};
114
115/*-------------------------------------------------------------------------*/
116
117static char *speed (enum usb_device_speed s)
118{
119 switch (s) {
120 case USB_SPEED_UNKNOWN: return "unknown";
121 case USB_SPEED_LOW: return "low";
122 case USB_SPEED_FULL: return "full";
123 case USB_SPEED_HIGH: return "high";
124 default: return "??";
125 }
126}
127
128struct testdev {
129 struct testdev *next;
130 char *name;
131 pthread_t thread;
132 enum usb_device_speed speed;
133 unsigned ifnum : 8;
134 unsigned forever : 1;
135 int test;
136
137 struct usbtest_param param;
138};
139static struct testdev *testdevs;
140
141static int testdev_ffs_ifnum(FILE *fd)
142{
143 union {
144 char buf[255];
145 struct usb_interface_descriptor intf;
146 } u;
147
148 for (;;) {
149 if (fread(u.buf, 1, 1, fd) != 1)
150 return -1;
151 if (fread(u.buf + 1, (unsigned char)u.buf[0] - 1, 1, fd) != 1)
152 return -1;
153
154 if (u.intf.bLength == sizeof u.intf
155 && u.intf.bDescriptorType == USB_DT_INTERFACE
156 && u.intf.bNumEndpoints == 2
157 && u.intf.bInterfaceClass == USB_CLASS_VENDOR_SPEC
158 && u.intf.bInterfaceSubClass == 0
159 && u.intf.bInterfaceProtocol == 0)
160 return (unsigned char)u.intf.bInterfaceNumber;
161 }
162}
163
164static int testdev_ifnum(FILE *fd)
165{
166 struct usb_device_descriptor dev;
167
168 if (fread(&dev, sizeof dev, 1, fd) != 1)
169 return -1;
170
171 if (dev.bLength != sizeof dev || dev.bDescriptorType != USB_DT_DEVICE)
172 return -1;
173
174 /* FX2 with (tweaked) bulksrc firmware */
175 if (dev.idVendor == 0x0547 && dev.idProduct == 0x1002)
176 return 0;
177
178 /*----------------------------------------------------*/
179
180 /* devices that start up using the EZ-USB default device and
181 * which we can use after loading simple firmware. hotplug
182 * can fxload it, and then run this test driver.
183 *
184 * we return false positives in two cases:
185 * - the device has a "real" driver (maybe usb-serial) that
186 * renumerates. the device should vanish quickly.
187 * - the device doesn't have the test firmware installed.
188 */
189
190 /* generic EZ-USB FX controller */
191 if (dev.idVendor == 0x0547 && dev.idProduct == 0x2235)
192 return 0;
193
194 /* generic EZ-USB FX2 controller */
195 if (dev.idVendor == 0x04b4 && dev.idProduct == 0x8613)
196 return 0;
197
198 /* CY3671 development board with EZ-USB FX */
199 if (dev.idVendor == 0x0547 && dev.idProduct == 0x0080)
200 return 0;
201
202 /* Keyspan 19Qi uses an21xx (original EZ-USB) */
203 if (dev.idVendor == 0x06cd && dev.idProduct == 0x010b)
204 return 0;
205
206 /*----------------------------------------------------*/
207
208 /* "gadget zero", Linux-USB test software */
209 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a0)
210 return 0;
211
212 /* user mode subset of that */
213 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a4)
214 return testdev_ffs_ifnum(fd);
215 /* return 0; */
216
217 /* iso version of usermode code */
218 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4a3)
219 return 0;
220
221 /* some GPL'd test firmware uses these IDs */
222
223 if (dev.idVendor == 0xfff0 && dev.idProduct == 0xfff0)
224 return 0;
225
226 /*----------------------------------------------------*/
227
228 /* iBOT2 high speed webcam */
229 if (dev.idVendor == 0x0b62 && dev.idProduct == 0x0059)
230 return 0;
231
232 /*----------------------------------------------------*/
233
234 /* the FunctionFS gadget can have the source/sink interface
235 * anywhere. We look for an interface descriptor that match
236 * what we expect. We ignore configuratiens thou. */
237
238 if (dev.idVendor == 0x0525 && dev.idProduct == 0xa4ac
239 && (dev.bDeviceClass == USB_CLASS_PER_INTERFACE
240 || dev.bDeviceClass == USB_CLASS_VENDOR_SPEC))
241 return testdev_ffs_ifnum(fd);
242
243 return -1;
244}
245
246static int find_testdev(const char *name, const struct stat *sb, int flag)
247{
248 FILE *fd;
249 int ifnum;
250 struct testdev *entry;
251
252 (void)sb; /* unused */
253
254 if (flag != FTW_F)
255 return 0;
256
257 fd = fopen(name, "rb");
258 if (!fd) {
259 perror(name);
260 return 0;
261 }
262
263 ifnum = testdev_ifnum(fd);
264 fclose(fd);
265 if (ifnum < 0)
266 return 0;
267
268 entry = calloc(1, sizeof *entry);
269 if (!entry)
270 goto nomem;
271
272 entry->name = strdup(name);
273 if (!entry->name) {
274 free(entry);
275nomem:
276 perror("malloc");
277 return 0;
278 }
279
280 entry->ifnum = ifnum;
281
282 /* FIXME update USBDEVFS_CONNECTINFO so it tells about high speed etc */
283
284 fprintf(stderr, "%s speed\t%s\t%u\n",
285 speed(entry->speed), entry->name, entry->ifnum);
286
287 entry->next = testdevs;
288 testdevs = entry;
289 return 0;
290}
291
292static int
293usbdev_ioctl (int fd, int ifno, unsigned request, void *param)
294{
295 struct usbdevfs_ioctl wrapper;
296
297 wrapper.ifno = ifno;
298 wrapper.ioctl_code = request;
299 wrapper.data = param;
300
301 return ioctl (fd, USBDEVFS_IOCTL, &wrapper);
302}
303
304static void *handle_testdev (void *arg)
305{
306 struct testdev *dev = arg;
307 int fd, i;
308 int status;
309
310 if ((fd = open (dev->name, O_RDWR)) < 0) {
311 perror ("can't open dev file r/w");
312 return 0;
313 }
314
315restart:
316 for (i = 0; i < TEST_CASES; i++) {
317 if (dev->test != -1 && dev->test != i)
318 continue;
319 dev->param.test_num = i;
320
321 status = usbdev_ioctl (fd, dev->ifnum,
322 USBTEST_REQUEST, &dev->param);
323 if (status < 0 && errno == EOPNOTSUPP)
324 continue;
325
326 /* FIXME need a "syslog it" option for background testing */
327
328 /* NOTE: each thread emits complete lines; no fragments! */
329 if (status < 0) {
330 char buf [80];
331 int err = errno;
332
333 if (strerror_r (errno, buf, sizeof buf)) {
334 snprintf (buf, sizeof buf, "error %d", err);
335 errno = err;
336 }
337 printf ("%s test %d --> %d (%s)\n",
338 dev->name, i, errno, buf);
339 } else
340 printf ("%s test %d, %4d.%.06d secs\n", dev->name, i,
341 (int) dev->param.duration.tv_sec,
342 (int) dev->param.duration.tv_usec);
343
344 fflush (stdout);
345 }
346 if (dev->forever)
347 goto restart;
348
349 close (fd);
350 return arg;
351}
352
353static const char *usb_dir_find(void)
354{
355 static char udev_usb_path[] = "/dev/bus/usb";
356
357 if (access(udev_usb_path, F_OK) == 0)
358 return udev_usb_path;
359
360 return NULL;
361}
362
363static int parse_num(unsigned *num, const char *str)
364{
365 unsigned long val;
366 char *end;
367
368 errno = 0;
369 val = strtoul(str, &end, 0);
370 if (errno || *end || val > UINT_MAX)
371 return -1;
372 *num = val;
373 return 0;
374}
375
376int main (int argc, char **argv)
377{
378
379 int c;
380 struct testdev *entry;
381 char *device;
382 const char *usb_dir = NULL;
383 int all = 0, forever = 0, not = 0;
384 int test = -1 /* all */;
385 struct usbtest_param param;
386
387 /* pick defaults that works with all speeds, without short packets.
388 *
389 * Best per-frame data rates:
390 * high speed, bulk 512 * 13 * 8 = 53248
391 * interrupt 1024 * 3 * 8 = 24576
392 * full speed, bulk/intr 64 * 19 = 1216
393 * interrupt 64 * 1 = 64
394 * low speed, interrupt 8 * 1 = 8
395 */
396 param.iterations = 1000;
397 param.length = 512;
398 param.vary = 512;
399 param.sglen = 32;
400
401 /* for easy use when hotplugging */
402 device = getenv ("DEVICE");
403
404 while ((c = getopt (argc, argv, "D:aA:c:g:hlns:t:v:")) != EOF)
405 switch (c) {
406 case 'D': /* device, if only one */
407 device = optarg;
408 continue;
409 case 'A': /* use all devices with specified USB dir */
410 usb_dir = optarg;
411 /* FALL THROUGH */
412 case 'a': /* use all devices */
413 device = NULL;
414 all = 1;
415 continue;
416 case 'c': /* count iterations */
417 if (parse_num(¶m.iterations, optarg))
418 goto usage;
419 continue;
420 case 'g': /* scatter/gather entries */
421 if (parse_num(¶m.sglen, optarg))
422 goto usage;
423 continue;
424 case 'l': /* loop forever */
425 forever = 1;
426 continue;
427 case 'n': /* no test running! */
428 not = 1;
429 continue;
430 case 's': /* size of packet */
431 if (parse_num(¶m.length, optarg))
432 goto usage;
433 continue;
434 case 't': /* run just one test */
435 test = atoi (optarg);
436 if (test < 0)
437 goto usage;
438 continue;
439 case 'v': /* vary packet size by ... */
440 if (parse_num(¶m.vary, optarg))
441 goto usage;
442 continue;
443 case '?':
444 case 'h':
445 default:
446usage:
447 fprintf (stderr,
448 "usage: %s [options]\n"
449 "Options:\n"
450 "\t-D dev only test specific device\n"
451 "\t-A usb-dir\n"
452 "\t-a test all recognized devices\n"
453 "\t-l loop forever(for stress test)\n"
454 "\t-t testnum only run specified case\n"
455 "\t-n no test running, show devices to be tested\n"
456 "Case arguments:\n"
457 "\t-c iterations default 1000\n"
458 "\t-s packetsize default 512\n"
459 "\t-g sglen default 32\n"
460 "\t-v vary default 512\n",
461 argv[0]);
462 return 1;
463 }
464 if (optind != argc)
465 goto usage;
466 if (!all && !device) {
467 fprintf (stderr, "must specify '-a' or '-D dev', "
468 "or DEVICE=/dev/bus/usb/BBB/DDD in env\n");
469 goto usage;
470 }
471
472 /* Find usb device subdirectory */
473 if (!usb_dir) {
474 usb_dir = usb_dir_find();
475 if (!usb_dir) {
476 fputs ("USB device files are missing\n", stderr);
477 return -1;
478 }
479 }
480
481 /* collect and list the test devices */
482 if (ftw (usb_dir, find_testdev, 3) != 0) {
483 fputs ("ftw failed; are USB device files missing?\n", stderr);
484 return -1;
485 }
486
487 /* quit, run single test, or create test threads */
488 if (!testdevs && !device) {
489 fputs ("no test devices recognized\n", stderr);
490 return -1;
491 }
492 if (not)
493 return 0;
494 if (testdevs && testdevs->next == 0 && !device)
495 device = testdevs->name;
496 for (entry = testdevs; entry; entry = entry->next) {
497 int status;
498
499 entry->param = param;
500 entry->forever = forever;
501 entry->test = test;
502
503 if (device) {
504 if (strcmp (entry->name, device))
505 continue;
506 return handle_testdev (entry) != entry;
507 }
508 status = pthread_create (&entry->thread, 0, handle_testdev, entry);
509 if (status)
510 perror ("pthread_create");
511 }
512 if (device) {
513 struct testdev dev;
514
515 /* kernel can recognize test devices we don't */
516 fprintf (stderr, "%s: %s may see only control tests\n",
517 argv [0], device);
518
519 memset (&dev, 0, sizeof dev);
520 dev.name = device;
521 dev.param = param;
522 dev.forever = forever;
523 dev.test = test;
524 return handle_testdev (&dev) != &dev;
525 }
526
527 /* wait for tests to complete */
528 for (entry = testdevs; entry; entry = entry->next) {
529 void *retval;
530
531 if (pthread_join (entry->thread, &retval))
532 perror ("pthread_join");
533 /* testing errors discarded! */
534 }
535
536 return 0;
537}