?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Linux 2.6.17.7
[linux/fpc-iii.git] / drivers / usb / misc / usbtest.c
blobccc5e8238bd889581b2b445cdb4b26108b5c6644
1 #include <linux/config.h>
2 #include <linux/kernel.h>
3 #include <linux/errno.h>
4 #include <linux/init.h>
5 #include <linux/slab.h>
6 #include <linux/mm.h>
7 #include <linux/module.h>
8 #include <linux/moduleparam.h>
9 #include <linux/scatterlist.h>
10
11 #include <linux/usb.h>
12
13
14 /*-------------------------------------------------------------------------*/
15
16 // FIXME make these public somewhere; usbdevfs.h?
17 //
18 struct usbtest_param {
19 // inputs
20 unsigned test_num; /* 0..(TEST_CASES-1) */
21 unsigned iterations;
22 unsigned length;
23 unsigned vary;
24 unsigned sglen;
25
26 // outputs
27 struct timeval duration;
28 };
29 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
30
31 /*-------------------------------------------------------------------------*/
32
33 #define GENERIC /* let probe() bind using module params */
34
35 /* Some devices that can be used for testing will have "real" drivers.
36 * Entries for those need to be enabled here by hand, after disabling
37 * that "real" driver.
38 */
39 //#define IBOT2 /* grab iBOT2 webcams */
40 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
41
42 /*-------------------------------------------------------------------------*/
43
44 struct usbtest_info {
45 const char *name;
46 u8 ep_in; /* bulk/intr source */
47 u8 ep_out; /* bulk/intr sink */
48 unsigned autoconf : 1;
49 unsigned ctrl_out : 1;
50 unsigned iso : 1; /* try iso in/out */
51 int alt;
52 };
53
54 /* this is accessed only through usbfs ioctl calls.
55 * one ioctl to issue a test ... one lock per device.
56 * tests create other threads if they need them.
57 * urbs and buffers are allocated dynamically,
58 * and data generated deterministically.
59 */
60 struct usbtest_dev {
61 struct usb_interface *intf;
62 struct usbtest_info *info;
63 int in_pipe;
64 int out_pipe;
65 int in_iso_pipe;
66 int out_iso_pipe;
67 struct usb_endpoint_descriptor *iso_in, *iso_out;
68 struct semaphore sem;
69
70 #define TBUF_SIZE 256
71 u8 *buf;
72 };
73
74 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
75 {
76 return interface_to_usbdev (test->intf);
77 }
78
79 /* set up all urbs so they can be used with either bulk or interrupt */
80 #define INTERRUPT_RATE 1 /* msec/transfer */
81
82 #define xprintk(tdev,level,fmt,args...) \
83 dev_printk(level , &(tdev)->intf->dev , fmt , ## args)
84
85 #ifdef DEBUG
86 #define DBG(dev,fmt,args...) \
87 xprintk(dev , KERN_DEBUG , fmt , ## args)
88 #else
89 #define DBG(dev,fmt,args...) \
90 do { } while (0)
91 #endif /* DEBUG */
92
93 #ifdef VERBOSE
94 #define VDBG DBG
95 #else
96 #define VDBG(dev,fmt,args...) \
97 do { } while (0)
98 #endif /* VERBOSE */
99
100 #define ERROR(dev,fmt,args...) \
101 xprintk(dev , KERN_ERR , fmt , ## args)
102 #define WARN(dev,fmt,args...) \
103 xprintk(dev , KERN_WARNING , fmt , ## args)
104 #define INFO(dev,fmt,args...) \
105 xprintk(dev , KERN_INFO , fmt , ## args)
106
107 /*-------------------------------------------------------------------------*/
108
109 static int
110 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
111 {
112 int tmp;
113 struct usb_host_interface *alt;
114 struct usb_host_endpoint *in, *out;
115 struct usb_host_endpoint *iso_in, *iso_out;
116 struct usb_device *udev;
117
118 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
119 unsigned ep;
120
121 in = out = NULL;
122 iso_in = iso_out = NULL;
123 alt = intf->altsetting + tmp;
124
125 /* take the first altsetting with in-bulk + out-bulk;
126 * ignore other endpoints and altsetttings.
127 */
128 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
129 struct usb_host_endpoint *e;
130
131 e = alt->endpoint + ep;
132 switch (e->desc.bmAttributes) {
133 case USB_ENDPOINT_XFER_BULK:
134 break;
135 case USB_ENDPOINT_XFER_ISOC:
136 if (dev->info->iso)
137 goto try_iso;
138 // FALLTHROUGH
139 default:
140 continue;
141 }
142 if (e->desc.bEndpointAddress & USB_DIR_IN) {
143 if (!in)
144 in = e;
145 } else {
146 if (!out)
147 out = e;
148 }
149 continue;
150 try_iso:
151 if (e->desc.bEndpointAddress & USB_DIR_IN) {
152 if (!iso_in)
153 iso_in = e;
154 } else {
155 if (!iso_out)
156 iso_out = e;
157 }
158 }
159 if ((in && out) || (iso_in && iso_out))
160 goto found;
161 }
162 return -EINVAL;
163
164 found:
165 udev = testdev_to_usbdev (dev);
166 if (alt->desc.bAlternateSetting != 0) {
167 tmp = usb_set_interface (udev,
168 alt->desc.bInterfaceNumber,
169 alt->desc.bAlternateSetting);
170 if (tmp < 0)
171 return tmp;
172 }
173
174 if (in) {
175 dev->in_pipe = usb_rcvbulkpipe (udev,
176 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
177 dev->out_pipe = usb_sndbulkpipe (udev,
178 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
179 }
180 if (iso_in) {
181 dev->iso_in = &iso_in->desc;
182 dev->in_iso_pipe = usb_rcvisocpipe (udev,
183 iso_in->desc.bEndpointAddress
184 & USB_ENDPOINT_NUMBER_MASK);
185 dev->iso_out = &iso_out->desc;
186 dev->out_iso_pipe = usb_sndisocpipe (udev,
187 iso_out->desc.bEndpointAddress
188 & USB_ENDPOINT_NUMBER_MASK);
189 }
190 return 0;
191 }
192
193 /*-------------------------------------------------------------------------*/
194
195 /* Support for testing basic non-queued I/O streams.
196 *
197 * These just package urbs as requests that can be easily canceled.
198 * Each urb's data buffer is dynamically allocated; callers can fill
199 * them with non-zero test data (or test for it) when appropriate.
200 */
201
202 static void simple_callback (struct urb *urb, struct pt_regs *regs)
203 {
204 complete ((struct completion *) urb->context);
205 }
206
207 static struct urb *simple_alloc_urb (
208 struct usb_device *udev,
209 int pipe,
210 unsigned long bytes
211 )
212 {
213 struct urb *urb;
214
215 if (bytes < 0)
216 return NULL;
217 urb = usb_alloc_urb (0, SLAB_KERNEL);
218 if (!urb)
219 return urb;
220 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
221 urb->interval = (udev->speed == USB_SPEED_HIGH)
222 ? (INTERRUPT_RATE << 3)
223 : INTERRUPT_RATE;
224 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
225 if (usb_pipein (pipe))
226 urb->transfer_flags |= URB_SHORT_NOT_OK;
227 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL,
228 &urb->transfer_dma);
229 if (!urb->transfer_buffer) {
230 usb_free_urb (urb);
231 urb = NULL;
232 } else
233 memset (urb->transfer_buffer, 0, bytes);
234 return urb;
235 }
236
237 static unsigned pattern = 0;
238 module_param (pattern, uint, S_IRUGO);
239 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)");
240
241 static inline void simple_fill_buf (struct urb *urb)
242 {
243 unsigned i;
244 u8 *buf = urb->transfer_buffer;
245 unsigned len = urb->transfer_buffer_length;
246
247 switch (pattern) {
248 default:
249 // FALLTHROUGH
250 case 0:
251 memset (buf, 0, len);
252 break;
253 case 1: /* mod63 */
254 for (i = 0; i < len; i++)
255 *buf++ = (u8) (i % 63);
256 break;
257 }
258 }
259
260 static inline int simple_check_buf (struct urb *urb)
261 {
262 unsigned i;
263 u8 expected;
264 u8 *buf = urb->transfer_buffer;
265 unsigned len = urb->actual_length;
266
267 for (i = 0; i < len; i++, buf++) {
268 switch (pattern) {
269 /* all-zeroes has no synchronization issues */
270 case 0:
271 expected = 0;
272 break;
273 /* mod63 stays in sync with short-terminated transfers,
274 * or otherwise when host and gadget agree on how large
275 * each usb transfer request should be. resync is done
276 * with set_interface or set_config.
277 */
278 case 1: /* mod63 */
279 expected = i % 63;
280 break;
281 /* always fail unsupported patterns */
282 default:
283 expected = !*buf;
284 break;
285 }
286 if (*buf == expected)
287 continue;
288 dbg ("buf[%d] = %d (not %d)", i, *buf, expected);
289 return -EINVAL;
290 }
291 return 0;
292 }
293
294 static void simple_free_urb (struct urb *urb)
295 {
296 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
297 urb->transfer_buffer, urb->transfer_dma);
298 usb_free_urb (urb);
299 }
300
301 static int simple_io (
302 struct urb *urb,
303 int iterations,
304 int vary,
305 int expected,
306 const char *label
307 )
308 {
309 struct usb_device *udev = urb->dev;
310 int max = urb->transfer_buffer_length;
311 struct completion completion;
312 int retval = 0;
313
314 urb->context = &completion;
315 while (retval == 0 && iterations-- > 0) {
316 init_completion (&completion);
317 if (usb_pipeout (urb->pipe))
318 simple_fill_buf (urb);
319 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0)
320 break;
321
322 /* NOTE: no timeouts; can't be broken out of by interrupt */
323 wait_for_completion (&completion);
324 retval = urb->status;
325 urb->dev = udev;
326 if (retval == 0 && usb_pipein (urb->pipe))
327 retval = simple_check_buf (urb);
328
329 if (vary) {
330 int len = urb->transfer_buffer_length;
331
332 len += vary;
333 len %= max;
334 if (len == 0)
335 len = (vary < max) ? vary : max;
336 urb->transfer_buffer_length = len;
337 }
338
339 /* FIXME if endpoint halted, clear halt (and log) */
340 }
341 urb->transfer_buffer_length = max;
342
343 if (expected != retval)
344 dev_dbg (&udev->dev,
345 "%s failed, iterations left %d, status %d (not %d)\n",
346 label, iterations, retval, expected);
347 return retval;
348 }
349
350
351 /*-------------------------------------------------------------------------*/
352
353 /* We use scatterlist primitives to test queued I/O.
354 * Yes, this also tests the scatterlist primitives.
355 */
356
357 static void free_sglist (struct scatterlist *sg, int nents)
358 {
359 unsigned i;
360
361 if (!sg)
362 return;
363 for (i = 0; i < nents; i++) {
364 if (!sg [i].page)
365 continue;
366 kfree (page_address (sg [i].page) + sg [i].offset);
367 }
368 kfree (sg);
369 }
370
371 static struct scatterlist *
372 alloc_sglist (int nents, int max, int vary)
373 {
374 struct scatterlist *sg;
375 unsigned i;
376 unsigned size = max;
377
378 sg = kmalloc (nents * sizeof *sg, SLAB_KERNEL);
379 if (!sg)
380 return NULL;
381
382 for (i = 0; i < nents; i++) {
383 char *buf;
384 unsigned j;
385
386 buf = kzalloc (size, SLAB_KERNEL);
387 if (!buf) {
388 free_sglist (sg, i);
389 return NULL;
390 }
391
392 /* kmalloc pages are always physically contiguous! */
393 sg_init_one(&sg[i], buf, size);
394
395 switch (pattern) {
396 case 0:
397 /* already zeroed */
398 break;
399 case 1:
400 for (j = 0; j < size; j++)
401 *buf++ = (u8) (j % 63);
402 break;
403 }
404
405 if (vary) {
406 size += vary;
407 size %= max;
408 if (size == 0)
409 size = (vary < max) ? vary : max;
410 }
411 }
412
413 return sg;
414 }
415
416 static int perform_sglist (
417 struct usb_device *udev,
418 unsigned iterations,
419 int pipe,
420 struct usb_sg_request *req,
421 struct scatterlist *sg,
422 int nents
423 )
424 {
425 int retval = 0;
426
427 while (retval == 0 && iterations-- > 0) {
428 retval = usb_sg_init (req, udev, pipe,
429 (udev->speed == USB_SPEED_HIGH)
430 ? (INTERRUPT_RATE << 3)
431 : INTERRUPT_RATE,
432 sg, nents, 0, SLAB_KERNEL);
433
434 if (retval)
435 break;
436 usb_sg_wait (req);
437 retval = req->status;
438
439 /* FIXME check resulting data pattern */
440
441 /* FIXME if endpoint halted, clear halt (and log) */
442 }
443
444 // FIXME for unlink or fault handling tests, don't report
445 // failure if retval is as we expected ...
446
447 if (retval)
448 dbg ("perform_sglist failed, iterations left %d, status %d",
449 iterations, retval);
450 return retval;
451 }
452
453
454 /*-------------------------------------------------------------------------*/
455
456 /* unqueued control message testing
457 *
458 * there's a nice set of device functional requirements in chapter 9 of the
459 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
460 * special test firmware.
461 *
462 * we know the device is configured (or suspended) by the time it's visible
463 * through usbfs. we can't change that, so we won't test enumeration (which
464 * worked 'well enough' to get here, this time), power management (ditto),
465 * or remote wakeup (which needs human interaction).
466 */
467
468 static unsigned realworld = 1;
469 module_param (realworld, uint, 0);
470 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
471
472 static int get_altsetting (struct usbtest_dev *dev)
473 {
474 struct usb_interface *iface = dev->intf;
475 struct usb_device *udev = interface_to_usbdev (iface);
476 int retval;
477
478 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
479 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
480 0, iface->altsetting [0].desc.bInterfaceNumber,
481 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
482 switch (retval) {
483 case 1:
484 return dev->buf [0];
485 case 0:
486 retval = -ERANGE;
487 // FALLTHROUGH
488 default:
489 return retval;
490 }
491 }
492
493 static int set_altsetting (struct usbtest_dev *dev, int alternate)
494 {
495 struct usb_interface *iface = dev->intf;
496 struct usb_device *udev;
497
498 if (alternate < 0 || alternate >= 256)
499 return -EINVAL;
500
501 udev = interface_to_usbdev (iface);
502 return usb_set_interface (udev,
503 iface->altsetting [0].desc.bInterfaceNumber,
504 alternate);
505 }
506
507 static int is_good_config (char *buf, int len)
508 {
509 struct usb_config_descriptor *config;
510
511 if (len < sizeof *config)
512 return 0;
513 config = (struct usb_config_descriptor *) buf;
514
515 switch (config->bDescriptorType) {
516 case USB_DT_CONFIG:
517 case USB_DT_OTHER_SPEED_CONFIG:
518 if (config->bLength != 9) {
519 dbg ("bogus config descriptor length");
520 return 0;
521 }
522 /* this bit 'must be 1' but often isn't */
523 if (!realworld && !(config->bmAttributes & 0x80)) {
524 dbg ("high bit of config attributes not set");
525 return 0;
526 }
527 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
528 dbg ("reserved config bits set");
529 return 0;
530 }
531 break;
532 default:
533 return 0;
534 }
535
536 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
537 return 1;
538 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
539 return 1;
540 dbg ("bogus config descriptor read size");
541 return 0;
542 }
543
544 /* sanity test for standard requests working with usb_control_mesg() and some
545 * of the utility functions which use it.
546 *
547 * this doesn't test how endpoint halts behave or data toggles get set, since
548 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
549 * halt or toggle). toggle testing is impractical without support from hcds.
550 *
551 * this avoids failing devices linux would normally work with, by not testing
552 * config/altsetting operations for devices that only support their defaults.
553 * such devices rarely support those needless operations.
554 *
555 * NOTE that since this is a sanity test, it's not examining boundary cases
556 * to see if usbcore, hcd, and device all behave right. such testing would
557 * involve varied read sizes and other operation sequences.
558 */
559 static int ch9_postconfig (struct usbtest_dev *dev)
560 {
561 struct usb_interface *iface = dev->intf;
562 struct usb_device *udev = interface_to_usbdev (iface);
563 int i, alt, retval;
564
565 /* [9.2.3] if there's more than one altsetting, we need to be able to
566 * set and get each one. mostly trusts the descriptors from usbcore.
567 */
568 for (i = 0; i < iface->num_altsetting; i++) {
569
570 /* 9.2.3 constrains the range here */
571 alt = iface->altsetting [i].desc.bAlternateSetting;
572 if (alt < 0 || alt >= iface->num_altsetting) {
573 dev_dbg (&iface->dev,
574 "invalid alt [%d].bAltSetting = %d\n",
575 i, alt);
576 }
577
578 /* [real world] get/set unimplemented if there's only one */
579 if (realworld && iface->num_altsetting == 1)
580 continue;
581
582 /* [9.4.10] set_interface */
583 retval = set_altsetting (dev, alt);
584 if (retval) {
585 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n",
586 alt, retval);
587 return retval;
588 }
589
590 /* [9.4.4] get_interface always works */
591 retval = get_altsetting (dev);
592 if (retval != alt) {
593 dev_dbg (&iface->dev, "get alt should be %d, was %d\n",
594 alt, retval);
595 return (retval < 0) ? retval : -EDOM;
596 }
597
598 }
599
600 /* [real world] get_config unimplemented if there's only one */
601 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
602 int expected = udev->actconfig->desc.bConfigurationValue;
603
604 /* [9.4.2] get_configuration always works
605 * ... although some cheap devices (like one TI Hub I've got)
606 * won't return config descriptors except before set_config.
607 */
608 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
609 USB_REQ_GET_CONFIGURATION,
610 USB_DIR_IN | USB_RECIP_DEVICE,
611 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
612 if (retval != 1 || dev->buf [0] != expected) {
613 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n",
614 retval, dev->buf[0], expected);
615 return (retval < 0) ? retval : -EDOM;
616 }
617 }
618
619 /* there's always [9.4.3] a device descriptor [9.6.1] */
620 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
621 dev->buf, sizeof udev->descriptor);
622 if (retval != sizeof udev->descriptor) {
623 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval);
624 return (retval < 0) ? retval : -EDOM;
625 }
626
627 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
628 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
629 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
630 dev->buf, TBUF_SIZE);
631 if (!is_good_config (dev->buf, retval)) {
632 dev_dbg (&iface->dev,
633 "config [%d] descriptor --> %d\n",
634 i, retval);
635 return (retval < 0) ? retval : -EDOM;
636 }
637
638 // FIXME cross-checking udev->config[i] to make sure usbcore
639 // parsed it right (etc) would be good testing paranoia
640 }
641
642 /* and sometimes [9.2.6.6] speed dependent descriptors */
643 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
644 struct usb_qualifier_descriptor *d = NULL;
645
646 /* device qualifier [9.6.2] */
647 retval = usb_get_descriptor (udev,
648 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
649 sizeof (struct usb_qualifier_descriptor));
650 if (retval == -EPIPE) {
651 if (udev->speed == USB_SPEED_HIGH) {
652 dev_dbg (&iface->dev,
653 "hs dev qualifier --> %d\n",
654 retval);
655 return (retval < 0) ? retval : -EDOM;
656 }
657 /* usb2.0 but not high-speed capable; fine */
658 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
659 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval);
660 return (retval < 0) ? retval : -EDOM;
661 } else
662 d = (struct usb_qualifier_descriptor *) dev->buf;
663
664 /* might not have [9.6.2] any other-speed configs [9.6.4] */
665 if (d) {
666 unsigned max = d->bNumConfigurations;
667 for (i = 0; i < max; i++) {
668 retval = usb_get_descriptor (udev,
669 USB_DT_OTHER_SPEED_CONFIG, i,
670 dev->buf, TBUF_SIZE);
671 if (!is_good_config (dev->buf, retval)) {
672 dev_dbg (&iface->dev,
673 "other speed config --> %d\n",
674 retval);
675 return (retval < 0) ? retval : -EDOM;
676 }
677 }
678 }
679 }
680 // FIXME fetch strings from at least the device descriptor
681
682 /* [9.4.5] get_status always works */
683 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
684 if (retval != 2) {
685 dev_dbg (&iface->dev, "get dev status --> %d\n", retval);
686 return (retval < 0) ? retval : -EDOM;
687 }
688
689 // FIXME configuration.bmAttributes says if we could try to set/clear
690 // the device's remote wakeup feature ... if we can, test that here
691
692 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
693 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
694 if (retval != 2) {
695 dev_dbg (&iface->dev, "get interface status --> %d\n", retval);
696 return (retval < 0) ? retval : -EDOM;
697 }
698 // FIXME get status for each endpoint in the interface
699
700 return 0;
701 }
702
703 /*-------------------------------------------------------------------------*/
704
705 /* use ch9 requests to test whether:
706 * (a) queues work for control, keeping N subtests queued and
707 * active (auto-resubmit) for M loops through the queue.
708 * (b) protocol stalls (control-only) will autorecover.
709 * it's not like bulk/intr; no halt clearing.
710 * (c) short control reads are reported and handled.
711 * (d) queues are always processed in-order
712 */
713
714 struct ctrl_ctx {
715 spinlock_t lock;
716 struct usbtest_dev *dev;
717 struct completion complete;
718 unsigned count;
719 unsigned pending;
720 int status;
721 struct urb **urb;
722 struct usbtest_param *param;
723 int last;
724 };
725
726 #define NUM_SUBCASES 15 /* how many test subcases here? */
727
728 struct subcase {
729 struct usb_ctrlrequest setup;
730 int number;
731 int expected;
732 };
733
734 static void ctrl_complete (struct urb *urb, struct pt_regs *regs)
735 {
736 struct ctrl_ctx *ctx = urb->context;
737 struct usb_ctrlrequest *reqp;
738 struct subcase *subcase;
739 int status = urb->status;
740
741 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
742 subcase = container_of (reqp, struct subcase, setup);
743
744 spin_lock (&ctx->lock);
745 ctx->count--;
746 ctx->pending--;
747
748 /* queue must transfer and complete in fifo order, unless
749 * usb_unlink_urb() is used to unlink something not at the
750 * physical queue head (not tested).
751 */
752 if (subcase->number > 0) {
753 if ((subcase->number - ctx->last) != 1) {
754 dbg ("subcase %d completed out of order, last %d",
755 subcase->number, ctx->last);
756 status = -EDOM;
757 ctx->last = subcase->number;
758 goto error;
759 }
760 }
761 ctx->last = subcase->number;
762
763 /* succeed or fault in only one way? */
764 if (status == subcase->expected)
765 status = 0;
766
767 /* async unlink for cleanup? */
768 else if (status != -ECONNRESET) {
769
770 /* some faults are allowed, not required */
771 if (subcase->expected > 0 && (
772 ((urb->status == -subcase->expected /* happened */
773 || urb->status == 0)))) /* didn't */
774 status = 0;
775 /* sometimes more than one fault is allowed */
776 else if (subcase->number == 12 && status == -EPIPE)
777 status = 0;
778 else
779 dbg ("subtest %d error, status %d",
780 subcase->number, status);
781 }
782
783 /* unexpected status codes mean errors; ideally, in hardware */
784 if (status) {
785 error:
786 if (ctx->status == 0) {
787 int i;
788
789 ctx->status = status;
790 info ("control queue %02x.%02x, err %d, %d left",
791 reqp->bRequestType, reqp->bRequest,
792 status, ctx->count);
793
794 /* FIXME this "unlink everything" exit route should
795 * be a separate test case.
796 */
797
798 /* unlink whatever's still pending */
799 for (i = 1; i < ctx->param->sglen; i++) {
800 struct urb *u = ctx->urb [
801 (i + subcase->number) % ctx->param->sglen];
802
803 if (u == urb || !u->dev)
804 continue;
805 status = usb_unlink_urb (u);
806 switch (status) {
807 case -EINPROGRESS:
808 case -EBUSY:
809 case -EIDRM:
810 continue;
811 default:
812 dbg ("urb unlink --> %d", status);
813 }
814 }
815 status = ctx->status;
816 }
817 }
818
819 /* resubmit if we need to, else mark this as done */
820 if ((status == 0) && (ctx->pending < ctx->count)) {
821 if ((status = usb_submit_urb (urb, SLAB_ATOMIC)) != 0) {
822 dbg ("can't resubmit ctrl %02x.%02x, err %d",
823 reqp->bRequestType, reqp->bRequest, status);
824 urb->dev = NULL;
825 } else
826 ctx->pending++;
827 } else
828 urb->dev = NULL;
829
830 /* signal completion when nothing's queued */
831 if (ctx->pending == 0)
832 complete (&ctx->complete);
833 spin_unlock (&ctx->lock);
834 }
835
836 static int
837 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
838 {
839 struct usb_device *udev = testdev_to_usbdev (dev);
840 struct urb **urb;
841 struct ctrl_ctx context;
842 int i;
843
844 spin_lock_init (&context.lock);
845 context.dev = dev;
846 init_completion (&context.complete);
847 context.count = param->sglen * param->iterations;
848 context.pending = 0;
849 context.status = -ENOMEM;
850 context.param = param;
851 context.last = -1;
852
853 /* allocate and init the urbs we'll queue.
854 * as with bulk/intr sglists, sglen is the queue depth; it also
855 * controls which subtests run (more tests than sglen) or rerun.
856 */
857 urb = kcalloc(param->sglen, sizeof(struct urb *), SLAB_KERNEL);
858 if (!urb)
859 return -ENOMEM;
860 for (i = 0; i < param->sglen; i++) {
861 int pipe = usb_rcvctrlpipe (udev, 0);
862 unsigned len;
863 struct urb *u;
864 struct usb_ctrlrequest req;
865 struct subcase *reqp;
866 int expected = 0;
867
868 /* requests here are mostly expected to succeed on any
869 * device, but some are chosen to trigger protocol stalls
870 * or short reads.
871 */
872 memset (&req, 0, sizeof req);
873 req.bRequest = USB_REQ_GET_DESCRIPTOR;
874 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
875
876 switch (i % NUM_SUBCASES) {
877 case 0: // get device descriptor
878 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
879 len = sizeof (struct usb_device_descriptor);
880 break;
881 case 1: // get first config descriptor (only)
882 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
883 len = sizeof (struct usb_config_descriptor);
884 break;
885 case 2: // get altsetting (OFTEN STALLS)
886 req.bRequest = USB_REQ_GET_INTERFACE;
887 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
888 // index = 0 means first interface
889 len = 1;
890 expected = EPIPE;
891 break;
892 case 3: // get interface status
893 req.bRequest = USB_REQ_GET_STATUS;
894 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
895 // interface 0
896 len = 2;
897 break;
898 case 4: // get device status
899 req.bRequest = USB_REQ_GET_STATUS;
900 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
901 len = 2;
902 break;
903 case 5: // get device qualifier (MAY STALL)
904 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
905 len = sizeof (struct usb_qualifier_descriptor);
906 if (udev->speed != USB_SPEED_HIGH)
907 expected = EPIPE;
908 break;
909 case 6: // get first config descriptor, plus interface
910 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
911 len = sizeof (struct usb_config_descriptor);
912 len += sizeof (struct usb_interface_descriptor);
913 break;
914 case 7: // get interface descriptor (ALWAYS STALLS)
915 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
916 // interface == 0
917 len = sizeof (struct usb_interface_descriptor);
918 expected = EPIPE;
919 break;
920 // NOTE: two consecutive stalls in the queue here.
921 // that tests fault recovery a bit more aggressively.
922 case 8: // clear endpoint halt (USUALLY STALLS)
923 req.bRequest = USB_REQ_CLEAR_FEATURE;
924 req.bRequestType = USB_RECIP_ENDPOINT;
925 // wValue 0 == ep halt
926 // wIndex 0 == ep0 (shouldn't halt!)
927 len = 0;
928 pipe = usb_sndctrlpipe (udev, 0);
929 expected = EPIPE;
930 break;
931 case 9: // get endpoint status
932 req.bRequest = USB_REQ_GET_STATUS;
933 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
934 // endpoint 0
935 len = 2;
936 break;
937 case 10: // trigger short read (EREMOTEIO)
938 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
939 len = 1024;
940 expected = -EREMOTEIO;
941 break;
942 // NOTE: two consecutive _different_ faults in the queue.
943 case 11: // get endpoint descriptor (ALWAYS STALLS)
944 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
945 // endpoint == 0
946 len = sizeof (struct usb_interface_descriptor);
947 expected = EPIPE;
948 break;
949 // NOTE: sometimes even a third fault in the queue!
950 case 12: // get string 0 descriptor (MAY STALL)
951 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
952 // string == 0, for language IDs
953 len = sizeof (struct usb_interface_descriptor);
954 // may succeed when > 4 languages
955 expected = EREMOTEIO; // or EPIPE, if no strings
956 break;
957 case 13: // short read, resembling case 10
958 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
959 // last data packet "should" be DATA1, not DATA0
960 len = 1024 - udev->descriptor.bMaxPacketSize0;
961 expected = -EREMOTEIO;
962 break;
963 case 14: // short read; try to fill the last packet
964 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
965 // device descriptor size == 18 bytes
966 len = udev->descriptor.bMaxPacketSize0;
967 switch (len) {
968 case 8: len = 24; break;
969 case 16: len = 32; break;
970 }
971 expected = -EREMOTEIO;
972 break;
973 default:
974 err ("bogus number of ctrl queue testcases!");
975 context.status = -EINVAL;
976 goto cleanup;
977 }
978 req.wLength = cpu_to_le16 (len);
979 urb [i] = u = simple_alloc_urb (udev, pipe, len);
980 if (!u)
981 goto cleanup;
982
983 reqp = usb_buffer_alloc (udev, sizeof *reqp, SLAB_KERNEL,
984 &u->setup_dma);
985 if (!reqp)
986 goto cleanup;
987 reqp->setup = req;
988 reqp->number = i % NUM_SUBCASES;
989 reqp->expected = expected;
990 u->setup_packet = (char *) &reqp->setup;
991 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
992
993 u->context = &context;
994 u->complete = ctrl_complete;
995 }
996
997 /* queue the urbs */
998 context.urb = urb;
999 spin_lock_irq (&context.lock);
1000 for (i = 0; i < param->sglen; i++) {
1001 context.status = usb_submit_urb (urb [i], SLAB_ATOMIC);
1002 if (context.status != 0) {
1003 dbg ("can't submit urb[%d], status %d",
1004 i, context.status);
1005 context.count = context.pending;
1006 break;
1007 }
1008 context.pending++;
1009 }
1010 spin_unlock_irq (&context.lock);
1011
1012 /* FIXME set timer and time out; provide a disconnect hook */
1013
1014 /* wait for the last one to complete */
1015 if (context.pending > 0)
1016 wait_for_completion (&context.complete);
1017
1018 cleanup:
1019 for (i = 0; i < param->sglen; i++) {
1020 if (!urb [i])
1021 continue;
1022 urb [i]->dev = udev;
1023 if (urb [i]->setup_packet)
1024 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1025 urb [i]->setup_packet,
1026 urb [i]->setup_dma);
1027 simple_free_urb (urb [i]);
1028 }
1029 kfree (urb);
1030 return context.status;
1031 }
1032 #undef NUM_SUBCASES
1033
1034
1035 /*-------------------------------------------------------------------------*/
1036
1037 static void unlink1_callback (struct urb *urb, struct pt_regs *regs)
1038 {
1039 int status = urb->status;
1040
1041 // we "know" -EPIPE (stall) never happens
1042 if (!status)
1043 status = usb_submit_urb (urb, SLAB_ATOMIC);
1044 if (status) {
1045 urb->status = status;
1046 complete ((struct completion *) urb->context);
1047 }
1048 }
1049
1050 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1051 {
1052 struct urb *urb;
1053 struct completion completion;
1054 int retval = 0;
1055
1056 init_completion (&completion);
1057 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1058 if (!urb)
1059 return -ENOMEM;
1060 urb->context = &completion;
1061 urb->complete = unlink1_callback;
1062
1063 /* keep the endpoint busy. there are lots of hc/hcd-internal
1064 * states, and testing should get to all of them over time.
1065 *
1066 * FIXME want additional tests for when endpoint is STALLing
1067 * due to errors, or is just NAKing requests.
1068 */
1069 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) {
1070 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval);
1071 return retval;
1072 }
1073
1074 /* unlinking that should always work. variable delay tests more
1075 * hcd states and code paths, even with little other system load.
1076 */
1077 msleep (jiffies % (2 * INTERRUPT_RATE));
1078 if (async) {
1079 retry:
1080 retval = usb_unlink_urb (urb);
1081 if (retval == -EBUSY || retval == -EIDRM) {
1082 /* we can't unlink urbs while they're completing.
1083 * or if they've completed, and we haven't resubmitted.
1084 * "normal" drivers would prevent resubmission, but
1085 * since we're testing unlink paths, we can't.
1086 */
1087 dev_dbg (&dev->intf->dev, "unlink retry\n");
1088 goto retry;
1089 }
1090 } else
1091 usb_kill_urb (urb);
1092 if (!(retval == 0 || retval == -EINPROGRESS)) {
1093 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval);
1094 return retval;
1095 }
1096
1097 wait_for_completion (&completion);
1098 retval = urb->status;
1099 simple_free_urb (urb);
1100
1101 if (async)
1102 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1103 else
1104 return (retval == -ENOENT || retval == -EPERM) ?
1105 0 : retval - 2000;
1106 }
1107
1108 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1109 {
1110 int retval = 0;
1111
1112 /* test sync and async paths */
1113 retval = unlink1 (dev, pipe, len, 1);
1114 if (!retval)
1115 retval = unlink1 (dev, pipe, len, 0);
1116 return retval;
1117 }
1118
1119 /*-------------------------------------------------------------------------*/
1120
1121 static int verify_not_halted (int ep, struct urb *urb)
1122 {
1123 int retval;
1124 u16 status;
1125
1126 /* shouldn't look or act halted */
1127 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1128 if (retval < 0) {
1129 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval);
1130 return retval;
1131 }
1132 if (status != 0) {
1133 dbg ("ep %02x bogus status: %04x != 0", ep, status);
1134 return -EINVAL;
1135 }
1136 retval = simple_io (urb, 1, 0, 0, __FUNCTION__);
1137 if (retval != 0)
1138 return -EINVAL;
1139 return 0;
1140 }
1141
1142 static int verify_halted (int ep, struct urb *urb)
1143 {
1144 int retval;
1145 u16 status;
1146
1147 /* should look and act halted */
1148 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1149 if (retval < 0) {
1150 dbg ("ep %02x couldn't get halt status, %d", ep, retval);
1151 return retval;
1152 }
1153 if (status != 1) {
1154 dbg ("ep %02x bogus status: %04x != 1", ep, status);
1155 return -EINVAL;
1156 }
1157 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__);
1158 if (retval != -EPIPE)
1159 return -EINVAL;
1160 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted");
1161 if (retval != -EPIPE)
1162 return -EINVAL;
1163 return 0;
1164 }
1165
1166 static int test_halt (int ep, struct urb *urb)
1167 {
1168 int retval;
1169
1170 /* shouldn't look or act halted now */
1171 retval = verify_not_halted (ep, urb);
1172 if (retval < 0)
1173 return retval;
1174
1175 /* set halt (protocol test only), verify it worked */
1176 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1177 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1178 USB_ENDPOINT_HALT, ep,
1179 NULL, 0, USB_CTRL_SET_TIMEOUT);
1180 if (retval < 0) {
1181 dbg ("ep %02x couldn't set halt, %d", ep, retval);
1182 return retval;
1183 }
1184 retval = verify_halted (ep, urb);
1185 if (retval < 0)
1186 return retval;
1187
1188 /* clear halt (tests API + protocol), verify it worked */
1189 retval = usb_clear_halt (urb->dev, urb->pipe);
1190 if (retval < 0) {
1191 dbg ("ep %02x couldn't clear halt, %d", ep, retval);
1192 return retval;
1193 }
1194 retval = verify_not_halted (ep, urb);
1195 if (retval < 0)
1196 return retval;
1197
1198 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1199
1200 return 0;
1201 }
1202
1203 static int halt_simple (struct usbtest_dev *dev)
1204 {
1205 int ep;
1206 int retval = 0;
1207 struct urb *urb;
1208
1209 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1210 if (urb == NULL)
1211 return -ENOMEM;
1212
1213 if (dev->in_pipe) {
1214 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1215 urb->pipe = dev->in_pipe;
1216 retval = test_halt (ep, urb);
1217 if (retval < 0)
1218 goto done;
1219 }
1220
1221 if (dev->out_pipe) {
1222 ep = usb_pipeendpoint (dev->out_pipe);
1223 urb->pipe = dev->out_pipe;
1224 retval = test_halt (ep, urb);
1225 }
1226 done:
1227 simple_free_urb (urb);
1228 return retval;
1229 }
1230
1231 /*-------------------------------------------------------------------------*/
1232
1233 /* Control OUT tests use the vendor control requests from Intel's
1234 * USB 2.0 compliance test device: write a buffer, read it back.
1235 *
1236 * Intel's spec only _requires_ that it work for one packet, which
1237 * is pretty weak. Some HCDs place limits here; most devices will
1238 * need to be able to handle more than one OUT data packet. We'll
1239 * try whatever we're told to try.
1240 */
1241 static int ctrl_out (struct usbtest_dev *dev,
1242 unsigned count, unsigned length, unsigned vary)
1243 {
1244 unsigned i, j, len, retval;
1245 u8 *buf;
1246 char *what = "?";
1247 struct usb_device *udev;
1248
1249 if (length < 1 || length > 0xffff || vary >= length)
1250 return -EINVAL;
1251
1252 buf = kmalloc(length, SLAB_KERNEL);
1253 if (!buf)
1254 return -ENOMEM;
1255
1256 udev = testdev_to_usbdev (dev);
1257 len = length;
1258 retval = 0;
1259
1260 /* NOTE: hardware might well act differently if we pushed it
1261 * with lots back-to-back queued requests.
1262 */
1263 for (i = 0; i < count; i++) {
1264 /* write patterned data */
1265 for (j = 0; j < len; j++)
1266 buf [j] = i + j;
1267 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1268 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1269 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1270 if (retval != len) {
1271 what = "write";
1272 if (retval >= 0) {
1273 INFO(dev, "ctrl_out, wlen %d (expected %d)\n",
1274 retval, len);
1275 retval = -EBADMSG;
1276 }
1277 break;
1278 }
1279
1280 /* read it back -- assuming nothing intervened!! */
1281 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1282 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1283 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1284 if (retval != len) {
1285 what = "read";
1286 if (retval >= 0) {
1287 INFO(dev, "ctrl_out, rlen %d (expected %d)\n",
1288 retval, len);
1289 retval = -EBADMSG;
1290 }
1291 break;
1292 }
1293
1294 /* fail if we can't verify */
1295 for (j = 0; j < len; j++) {
1296 if (buf [j] != (u8) (i + j)) {
1297 INFO (dev, "ctrl_out, byte %d is %d not %d\n",
1298 j, buf [j], (u8) i + j);
1299 retval = -EBADMSG;
1300 break;
1301 }
1302 }
1303 if (retval < 0) {
1304 what = "verify";
1305 break;
1306 }
1307
1308 len += vary;
1309
1310 /* [real world] the "zero bytes IN" case isn't really used.
1311 * hardware can easily trip up in this wierd case, since its
1312 * status stage is IN, not OUT like other ep0in transfers.
1313 */
1314 if (len > length)
1315 len = realworld ? 1 : 0;
1316 }
1317
1318 if (retval < 0)
1319 INFO (dev, "ctrl_out %s failed, code %d, count %d\n",
1320 what, retval, i);
1321
1322 kfree (buf);
1323 return retval;
1324 }
1325
1326 /*-------------------------------------------------------------------------*/
1327
1328 /* ISO tests ... mimics common usage
1329 * - buffer length is split into N packets (mostly maxpacket sized)
1330 * - multi-buffers according to sglen
1331 */
1332
1333 struct iso_context {
1334 unsigned count;
1335 unsigned pending;
1336 spinlock_t lock;
1337 struct completion done;
1338 unsigned long errors;
1339 struct usbtest_dev *dev;
1340 };
1341
1342 static void iso_callback (struct urb *urb, struct pt_regs *regs)
1343 {
1344 struct iso_context *ctx = urb->context;
1345
1346 spin_lock(&ctx->lock);
1347 ctx->count--;
1348
1349 if (urb->error_count > 0)
1350 ctx->errors += urb->error_count;
1351
1352 if (urb->status == 0 && ctx->count > (ctx->pending - 1)) {
1353 int status = usb_submit_urb (urb, GFP_ATOMIC);
1354 switch (status) {
1355 case 0:
1356 goto done;
1357 default:
1358 dev_dbg (&ctx->dev->intf->dev,
1359 "iso resubmit err %d\n",
1360 status);
1361 /* FALLTHROUGH */
1362 case -ENODEV: /* disconnected */
1363 break;
1364 }
1365 }
1366 simple_free_urb (urb);
1367
1368 ctx->pending--;
1369 if (ctx->pending == 0) {
1370 if (ctx->errors)
1371 dev_dbg (&ctx->dev->intf->dev,
1372 "iso test, %lu errors\n",
1373 ctx->errors);
1374 complete (&ctx->done);
1375 }
1376 done:
1377 spin_unlock(&ctx->lock);
1378 }
1379
1380 static struct urb *iso_alloc_urb (
1381 struct usb_device *udev,
1382 int pipe,
1383 struct usb_endpoint_descriptor *desc,
1384 long bytes
1385 )
1386 {
1387 struct urb *urb;
1388 unsigned i, maxp, packets;
1389
1390 if (bytes < 0 || !desc)
1391 return NULL;
1392 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1393 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1394 packets = (bytes + maxp - 1) / maxp;
1395
1396 urb = usb_alloc_urb (packets, SLAB_KERNEL);
1397 if (!urb)
1398 return urb;
1399 urb->dev = udev;
1400 urb->pipe = pipe;
1401
1402 urb->number_of_packets = packets;
1403 urb->transfer_buffer_length = bytes;
1404 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL,
1405 &urb->transfer_dma);
1406 if (!urb->transfer_buffer) {
1407 usb_free_urb (urb);
1408 return NULL;
1409 }
1410 memset (urb->transfer_buffer, 0, bytes);
1411 for (i = 0; i < packets; i++) {
1412 /* here, only the last packet will be short */
1413 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1414 bytes -= urb->iso_frame_desc[i].length;
1415
1416 urb->iso_frame_desc[i].offset = maxp * i;
1417 }
1418
1419 urb->complete = iso_callback;
1420 // urb->context = SET BY CALLER
1421 urb->interval = 1 << (desc->bInterval - 1);
1422 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1423 return urb;
1424 }
1425
1426 static int
1427 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1428 int pipe, struct usb_endpoint_descriptor *desc)
1429 {
1430 struct iso_context context;
1431 struct usb_device *udev;
1432 unsigned i;
1433 unsigned long packets = 0;
1434 int status;
1435 struct urb *urbs[10]; /* FIXME no limit */
1436
1437 if (param->sglen > 10)
1438 return -EDOM;
1439
1440 context.count = param->iterations * param->sglen;
1441 context.pending = param->sglen;
1442 context.errors = 0;
1443 context.dev = dev;
1444 init_completion (&context.done);
1445 spin_lock_init (&context.lock);
1446
1447 memset (urbs, 0, sizeof urbs);
1448 udev = testdev_to_usbdev (dev);
1449 dev_dbg (&dev->intf->dev,
1450 "... iso period %d %sframes, wMaxPacket %04x\n",
1451 1 << (desc->bInterval - 1),
1452 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1453 le16_to_cpu(desc->wMaxPacketSize));
1454
1455 for (i = 0; i < param->sglen; i++) {
1456 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1457 param->length);
1458 if (!urbs [i]) {
1459 status = -ENOMEM;
1460 goto fail;
1461 }
1462 packets += urbs[i]->number_of_packets;
1463 urbs [i]->context = &context;
1464 }
1465 packets *= param->iterations;
1466 dev_dbg (&dev->intf->dev,
1467 "... total %lu msec (%lu packets)\n",
1468 (packets * (1 << (desc->bInterval - 1)))
1469 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1470 packets);
1471
1472 spin_lock_irq (&context.lock);
1473 for (i = 0; i < param->sglen; i++) {
1474 status = usb_submit_urb (urbs [i], SLAB_ATOMIC);
1475 if (status < 0) {
1476 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1477 if (i == 0) {
1478 spin_unlock_irq (&context.lock);
1479 goto fail;
1480 }
1481
1482 simple_free_urb (urbs [i]);
1483 context.pending--;
1484 }
1485 }
1486 spin_unlock_irq (&context.lock);
1487
1488 wait_for_completion (&context.done);
1489 return 0;
1490
1491 fail:
1492 for (i = 0; i < param->sglen; i++) {
1493 if (urbs [i])
1494 simple_free_urb (urbs [i]);
1495 }
1496 return status;
1497 }
1498
1499 /*-------------------------------------------------------------------------*/
1500
1501 /* We only have this one interface to user space, through usbfs.
1502 * User mode code can scan usbfs to find N different devices (maybe on
1503 * different busses) to use when testing, and allocate one thread per
1504 * test. So discovery is simplified, and we have no device naming issues.
1505 *
1506 * Don't use these only as stress/load tests. Use them along with with
1507 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1508 * video capture, and so on. Run different tests at different times, in
1509 * different sequences. Nothing here should interact with other devices,
1510 * except indirectly by consuming USB bandwidth and CPU resources for test
1511 * threads and request completion. But the only way to know that for sure
1512 * is to test when HC queues are in use by many devices.
1513 */
1514
1515 static int
1516 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1517 {
1518 struct usbtest_dev *dev = usb_get_intfdata (intf);
1519 struct usb_device *udev = testdev_to_usbdev (dev);
1520 struct usbtest_param *param = buf;
1521 int retval = -EOPNOTSUPP;
1522 struct urb *urb;
1523 struct scatterlist *sg;
1524 struct usb_sg_request req;
1525 struct timeval start;
1526 unsigned i;
1527
1528 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1529
1530 if (code != USBTEST_REQUEST)
1531 return -EOPNOTSUPP;
1532
1533 if (param->iterations <= 0 || param->length < 0
1534 || param->sglen < 0 || param->vary < 0)
1535 return -EINVAL;
1536
1537 if (down_interruptible (&dev->sem))
1538 return -ERESTARTSYS;
1539
1540 if (intf->dev.power.power_state.event != PM_EVENT_ON) {
1541 up (&dev->sem);
1542 return -EHOSTUNREACH;
1543 }
1544
1545 /* some devices, like ez-usb default devices, need a non-default
1546 * altsetting to have any active endpoints. some tests change
1547 * altsettings; force a default so most tests don't need to check.
1548 */
1549 if (dev->info->alt >= 0) {
1550 int res;
1551
1552 if (intf->altsetting->desc.bInterfaceNumber) {
1553 up (&dev->sem);
1554 return -ENODEV;
1555 }
1556 res = set_altsetting (dev, dev->info->alt);
1557 if (res) {
1558 dev_err (&intf->dev,
1559 "set altsetting to %d failed, %d\n",
1560 dev->info->alt, res);
1561 up (&dev->sem);
1562 return res;
1563 }
1564 }
1565
1566 /*
1567 * Just a bunch of test cases that every HCD is expected to handle.
1568 *
1569 * Some may need specific firmware, though it'd be good to have
1570 * one firmware image to handle all the test cases.
1571 *
1572 * FIXME add more tests! cancel requests, verify the data, control
1573 * queueing, concurrent read+write threads, and so on.
1574 */
1575 do_gettimeofday (&start);
1576 switch (param->test_num) {
1577
1578 case 0:
1579 dev_dbg (&intf->dev, "TEST 0: NOP\n");
1580 retval = 0;
1581 break;
1582
1583 /* Simple non-queued bulk I/O tests */
1584 case 1:
1585 if (dev->out_pipe == 0)
1586 break;
1587 dev_dbg (&intf->dev,
1588 "TEST 1: write %d bytes %u times\n",
1589 param->length, param->iterations);
1590 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1591 if (!urb) {
1592 retval = -ENOMEM;
1593 break;
1594 }
1595 // FIRMWARE: bulk sink (maybe accepts short writes)
1596 retval = simple_io (urb, param->iterations, 0, 0, "test1");
1597 simple_free_urb (urb);
1598 break;
1599 case 2:
1600 if (dev->in_pipe == 0)
1601 break;
1602 dev_dbg (&intf->dev,
1603 "TEST 2: read %d bytes %u times\n",
1604 param->length, param->iterations);
1605 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1606 if (!urb) {
1607 retval = -ENOMEM;
1608 break;
1609 }
1610 // FIRMWARE: bulk source (maybe generates short writes)
1611 retval = simple_io (urb, param->iterations, 0, 0, "test2");
1612 simple_free_urb (urb);
1613 break;
1614 case 3:
1615 if (dev->out_pipe == 0 || param->vary == 0)
1616 break;
1617 dev_dbg (&intf->dev,
1618 "TEST 3: write/%d 0..%d bytes %u times\n",
1619 param->vary, param->length, param->iterations);
1620 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1621 if (!urb) {
1622 retval = -ENOMEM;
1623 break;
1624 }
1625 // FIRMWARE: bulk sink (maybe accepts short writes)
1626 retval = simple_io (urb, param->iterations, param->vary,
1627 0, "test3");
1628 simple_free_urb (urb);
1629 break;
1630 case 4:
1631 if (dev->in_pipe == 0 || param->vary == 0)
1632 break;
1633 dev_dbg (&intf->dev,
1634 "TEST 4: read/%d 0..%d bytes %u times\n",
1635 param->vary, param->length, param->iterations);
1636 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1637 if (!urb) {
1638 retval = -ENOMEM;
1639 break;
1640 }
1641 // FIRMWARE: bulk source (maybe generates short writes)
1642 retval = simple_io (urb, param->iterations, param->vary,
1643 0, "test4");
1644 simple_free_urb (urb);
1645 break;
1646
1647 /* Queued bulk I/O tests */
1648 case 5:
1649 if (dev->out_pipe == 0 || param->sglen == 0)
1650 break;
1651 dev_dbg (&intf->dev,
1652 "TEST 5: write %d sglists %d entries of %d bytes\n",
1653 param->iterations,
1654 param->sglen, param->length);
1655 sg = alloc_sglist (param->sglen, param->length, 0);
1656 if (!sg) {
1657 retval = -ENOMEM;
1658 break;
1659 }
1660 // FIRMWARE: bulk sink (maybe accepts short writes)
1661 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1662 &req, sg, param->sglen);
1663 free_sglist (sg, param->sglen);
1664 break;
1665
1666 case 6:
1667 if (dev->in_pipe == 0 || param->sglen == 0)
1668 break;
1669 dev_dbg (&intf->dev,
1670 "TEST 6: read %d sglists %d entries of %d bytes\n",
1671 param->iterations,
1672 param->sglen, param->length);
1673 sg = alloc_sglist (param->sglen, param->length, 0);
1674 if (!sg) {
1675 retval = -ENOMEM;
1676 break;
1677 }
1678 // FIRMWARE: bulk source (maybe generates short writes)
1679 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1680 &req, sg, param->sglen);
1681 free_sglist (sg, param->sglen);
1682 break;
1683 case 7:
1684 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1685 break;
1686 dev_dbg (&intf->dev,
1687 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1688 param->vary, param->iterations,
1689 param->sglen, param->length);
1690 sg = alloc_sglist (param->sglen, param->length, param->vary);
1691 if (!sg) {
1692 retval = -ENOMEM;
1693 break;
1694 }
1695 // FIRMWARE: bulk sink (maybe accepts short writes)
1696 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1697 &req, sg, param->sglen);
1698 free_sglist (sg, param->sglen);
1699 break;
1700 case 8:
1701 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1702 break;
1703 dev_dbg (&intf->dev,
1704 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1705 param->vary, param->iterations,
1706 param->sglen, param->length);
1707 sg = alloc_sglist (param->sglen, param->length, param->vary);
1708 if (!sg) {
1709 retval = -ENOMEM;
1710 break;
1711 }
1712 // FIRMWARE: bulk source (maybe generates short writes)
1713 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1714 &req, sg, param->sglen);
1715 free_sglist (sg, param->sglen);
1716 break;
1717
1718 /* non-queued sanity tests for control (chapter 9 subset) */
1719 case 9:
1720 retval = 0;
1721 dev_dbg (&intf->dev,
1722 "TEST 9: ch9 (subset) control tests, %d times\n",
1723 param->iterations);
1724 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1725 retval = ch9_postconfig (dev);
1726 if (retval)
1727 dbg ("ch9 subset failed, iterations left %d", i);
1728 break;
1729
1730 /* queued control messaging */
1731 case 10:
1732 if (param->sglen == 0)
1733 break;
1734 retval = 0;
1735 dev_dbg (&intf->dev,
1736 "TEST 10: queue %d control calls, %d times\n",
1737 param->sglen,
1738 param->iterations);
1739 retval = test_ctrl_queue (dev, param);
1740 break;
1741
1742 /* simple non-queued unlinks (ring with one urb) */
1743 case 11:
1744 if (dev->in_pipe == 0 || !param->length)
1745 break;
1746 retval = 0;
1747 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n",
1748 param->iterations, param->length);
1749 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1750 retval = unlink_simple (dev, dev->in_pipe,
1751 param->length);
1752 if (retval)
1753 dev_dbg (&intf->dev, "unlink reads failed %d, "
1754 "iterations left %d\n", retval, i);
1755 break;
1756 case 12:
1757 if (dev->out_pipe == 0 || !param->length)
1758 break;
1759 retval = 0;
1760 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n",
1761 param->iterations, param->length);
1762 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1763 retval = unlink_simple (dev, dev->out_pipe,
1764 param->length);
1765 if (retval)
1766 dev_dbg (&intf->dev, "unlink writes failed %d, "
1767 "iterations left %d\n", retval, i);
1768 break;
1769
1770 /* ep halt tests */
1771 case 13:
1772 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1773 break;
1774 retval = 0;
1775 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n",
1776 param->iterations);
1777 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1778 retval = halt_simple (dev);
1779
1780 if (retval)
1781 DBG (dev, "halts failed, iterations left %d\n", i);
1782 break;
1783
1784 /* control write tests */
1785 case 14:
1786 if (!dev->info->ctrl_out)
1787 break;
1788 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1789 param->iterations,
1790 realworld ? 1 : 0, param->length,
1791 param->vary);
1792 retval = ctrl_out (dev, param->iterations,
1793 param->length, param->vary);
1794 break;
1795
1796 /* iso write tests */
1797 case 15:
1798 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1799 break;
1800 dev_dbg (&intf->dev,
1801 "TEST 15: write %d iso, %d entries of %d bytes\n",
1802 param->iterations,
1803 param->sglen, param->length);
1804 // FIRMWARE: iso sink
1805 retval = test_iso_queue (dev, param,
1806 dev->out_iso_pipe, dev->iso_out);
1807 break;
1808
1809 /* iso read tests */
1810 case 16:
1811 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1812 break;
1813 dev_dbg (&intf->dev,
1814 "TEST 16: read %d iso, %d entries of %d bytes\n",
1815 param->iterations,
1816 param->sglen, param->length);
1817 // FIRMWARE: iso source
1818 retval = test_iso_queue (dev, param,
1819 dev->in_iso_pipe, dev->iso_in);
1820 break;
1821
1822 // FIXME unlink from queue (ring with N urbs)
1823
1824 // FIXME scatterlist cancel (needs helper thread)
1825
1826 }
1827 do_gettimeofday (&param->duration);
1828 param->duration.tv_sec -= start.tv_sec;
1829 param->duration.tv_usec -= start.tv_usec;
1830 if (param->duration.tv_usec < 0) {
1831 param->duration.tv_usec += 1000 * 1000;
1832 param->duration.tv_sec -= 1;
1833 }
1834 up (&dev->sem);
1835 return retval;
1836 }
1837
1838 /*-------------------------------------------------------------------------*/
1839
1840 static unsigned force_interrupt = 0;
1841 module_param (force_interrupt, uint, 0);
1842 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1843
1844 #ifdef GENERIC
1845 static unsigned short vendor;
1846 module_param(vendor, ushort, 0);
1847 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1848
1849 static unsigned short product;
1850 module_param(product, ushort, 0);
1851 MODULE_PARM_DESC (product, "product code (from vendor)");
1852 #endif
1853
1854 static int
1855 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1856 {
1857 struct usb_device *udev;
1858 struct usbtest_dev *dev;
1859 struct usbtest_info *info;
1860 char *rtest, *wtest;
1861 char *irtest, *iwtest;
1862
1863 udev = interface_to_usbdev (intf);
1864
1865 #ifdef GENERIC
1866 /* specify devices by module parameters? */
1867 if (id->match_flags == 0) {
1868 /* vendor match required, product match optional */
1869 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1870 return -ENODEV;
1871 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1872 return -ENODEV;
1873 dbg ("matched module params, vend=0x%04x prod=0x%04x",
1874 le16_to_cpu(udev->descriptor.idVendor),
1875 le16_to_cpu(udev->descriptor.idProduct));
1876 }
1877 #endif
1878
1879 dev = kzalloc(sizeof(*dev), SLAB_KERNEL);
1880 if (!dev)
1881 return -ENOMEM;
1882 info = (struct usbtest_info *) id->driver_info;
1883 dev->info = info;
1884 init_MUTEX (&dev->sem);
1885
1886 dev->intf = intf;
1887
1888 /* cacheline-aligned scratch for i/o */
1889 if ((dev->buf = kmalloc (TBUF_SIZE, SLAB_KERNEL)) == NULL) {
1890 kfree (dev);
1891 return -ENOMEM;
1892 }
1893
1894 /* NOTE this doesn't yet test the handful of difference that are
1895 * visible with high speed interrupts: bigger maxpacket (1K) and
1896 * "high bandwidth" modes (up to 3 packets/uframe).
1897 */
1898 rtest = wtest = "";
1899 irtest = iwtest = "";
1900 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1901 if (info->ep_in) {
1902 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1903 rtest = " intr-in";
1904 }
1905 if (info->ep_out) {
1906 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1907 wtest = " intr-out";
1908 }
1909 } else {
1910 if (info->autoconf) {
1911 int status;
1912
1913 status = get_endpoints (dev, intf);
1914 if (status < 0) {
1915 dbg ("couldn't get endpoints, %d\n", status);
1916 return status;
1917 }
1918 /* may find bulk or ISO pipes */
1919 } else {
1920 if (info->ep_in)
1921 dev->in_pipe = usb_rcvbulkpipe (udev,
1922 info->ep_in);
1923 if (info->ep_out)
1924 dev->out_pipe = usb_sndbulkpipe (udev,
1925 info->ep_out);
1926 }
1927 if (dev->in_pipe)
1928 rtest = " bulk-in";
1929 if (dev->out_pipe)
1930 wtest = " bulk-out";
1931 if (dev->in_iso_pipe)
1932 irtest = " iso-in";
1933 if (dev->out_iso_pipe)
1934 iwtest = " iso-out";
1935 }
1936
1937 usb_set_intfdata (intf, dev);
1938 dev_info (&intf->dev, "%s\n", info->name);
1939 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1940 ({ char *tmp;
1941 switch (udev->speed) {
1942 case USB_SPEED_LOW: tmp = "low"; break;
1943 case USB_SPEED_FULL: tmp = "full"; break;
1944 case USB_SPEED_HIGH: tmp = "high"; break;
1945 default: tmp = "unknown"; break;
1946 }; tmp; }),
1947 info->ctrl_out ? " in/out" : "",
1948 rtest, wtest,
1949 irtest, iwtest,
1950 info->alt >= 0 ? " (+alt)" : "");
1951 return 0;
1952 }
1953
1954 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
1955 {
1956 return 0;
1957 }
1958
1959 static int usbtest_resume (struct usb_interface *intf)
1960 {
1961 return 0;
1962 }
1963
1964
1965 static void usbtest_disconnect (struct usb_interface *intf)
1966 {
1967 struct usbtest_dev *dev = usb_get_intfdata (intf);
1968
1969 down (&dev->sem);
1970
1971 usb_set_intfdata (intf, NULL);
1972 dev_dbg (&intf->dev, "disconnect\n");
1973 kfree (dev);
1974 }
1975
1976 /* Basic testing only needs a device that can source or sink bulk traffic.
1977 * Any device can test control transfers (default with GENERIC binding).
1978 *
1979 * Several entries work with the default EP0 implementation that's built
1980 * into EZ-USB chips. There's a default vendor ID which can be overridden
1981 * by (very) small config EEPROMS, but otherwise all these devices act
1982 * identically until firmware is loaded: only EP0 works. It turns out
1983 * to be easy to make other endpoints work, without modifying that EP0
1984 * behavior. For now, we expect that kind of firmware.
1985 */
1986
1987 /* an21xx or fx versions of ez-usb */
1988 static struct usbtest_info ez1_info = {
1989 .name = "EZ-USB device",
1990 .ep_in = 2,
1991 .ep_out = 2,
1992 .alt = 1,
1993 };
1994
1995 /* fx2 version of ez-usb */
1996 static struct usbtest_info ez2_info = {
1997 .name = "FX2 device",
1998 .ep_in = 6,
1999 .ep_out = 2,
2000 .alt = 1,
2001 };
2002
2003 /* ezusb family device with dedicated usb test firmware,
2004 */
2005 static struct usbtest_info fw_info = {
2006 .name = "usb test device",
2007 .ep_in = 2,
2008 .ep_out = 2,
2009 .alt = 1,
2010 .autoconf = 1, // iso and ctrl_out need autoconf
2011 .ctrl_out = 1,
2012 .iso = 1, // iso_ep's are #8 in/out
2013 };
2014
2015 /* peripheral running Linux and 'zero.c' test firmware, or
2016 * its user-mode cousin. different versions of this use
2017 * different hardware with the same vendor/product codes.
2018 * host side MUST rely on the endpoint descriptors.
2019 */
2020 static struct usbtest_info gz_info = {
2021 .name = "Linux gadget zero",
2022 .autoconf = 1,
2023 .ctrl_out = 1,
2024 .alt = 0,
2025 };
2026
2027 static struct usbtest_info um_info = {
2028 .name = "Linux user mode test driver",
2029 .autoconf = 1,
2030 .alt = -1,
2031 };
2032
2033 static struct usbtest_info um2_info = {
2034 .name = "Linux user mode ISO test driver",
2035 .autoconf = 1,
2036 .iso = 1,
2037 .alt = -1,
2038 };
2039
2040 #ifdef IBOT2
2041 /* this is a nice source of high speed bulk data;
2042 * uses an FX2, with firmware provided in the device
2043 */
2044 static struct usbtest_info ibot2_info = {
2045 .name = "iBOT2 webcam",
2046 .ep_in = 2,
2047 .alt = -1,
2048 };
2049 #endif
2050
2051 #ifdef GENERIC
2052 /* we can use any device to test control traffic */
2053 static struct usbtest_info generic_info = {
2054 .name = "Generic USB device",
2055 .alt = -1,
2056 };
2057 #endif
2058
2059 // FIXME remove this
2060 static struct usbtest_info hact_info = {
2061 .name = "FX2/hact",
2062 //.ep_in = 6,
2063 .ep_out = 2,
2064 .alt = -1,
2065 };
2066
2067
2068 static struct usb_device_id id_table [] = {
2069
2070 { USB_DEVICE (0x0547, 0x1002),
2071 .driver_info = (unsigned long) &hact_info,
2072 },
2073
2074 /*-------------------------------------------------------------*/
2075
2076 /* EZ-USB devices which download firmware to replace (or in our
2077 * case augment) the default device implementation.
2078 */
2079
2080 /* generic EZ-USB FX controller */
2081 { USB_DEVICE (0x0547, 0x2235),
2082 .driver_info = (unsigned long) &ez1_info,
2083 },
2084
2085 /* CY3671 development board with EZ-USB FX */
2086 { USB_DEVICE (0x0547, 0x0080),
2087 .driver_info = (unsigned long) &ez1_info,
2088 },
2089
2090 /* generic EZ-USB FX2 controller (or development board) */
2091 { USB_DEVICE (0x04b4, 0x8613),
2092 .driver_info = (unsigned long) &ez2_info,
2093 },
2094
2095 /* re-enumerated usb test device firmware */
2096 { USB_DEVICE (0xfff0, 0xfff0),
2097 .driver_info = (unsigned long) &fw_info,
2098 },
2099
2100 /* "Gadget Zero" firmware runs under Linux */
2101 { USB_DEVICE (0x0525, 0xa4a0),
2102 .driver_info = (unsigned long) &gz_info,
2103 },
2104
2105 /* so does a user-mode variant */
2106 { USB_DEVICE (0x0525, 0xa4a4),
2107 .driver_info = (unsigned long) &um_info,
2108 },
2109
2110 /* ... and a user-mode variant that talks iso */
2111 { USB_DEVICE (0x0525, 0xa4a3),
2112 .driver_info = (unsigned long) &um2_info,
2113 },
2114
2115 #ifdef KEYSPAN_19Qi
2116 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2117 // this does not coexist with the real Keyspan 19qi driver!
2118 { USB_DEVICE (0x06cd, 0x010b),
2119 .driver_info = (unsigned long) &ez1_info,
2120 },
2121 #endif
2122
2123 /*-------------------------------------------------------------*/
2124
2125 #ifdef IBOT2
2126 /* iBOT2 makes a nice source of high speed bulk-in data */
2127 // this does not coexist with a real iBOT2 driver!
2128 { USB_DEVICE (0x0b62, 0x0059),
2129 .driver_info = (unsigned long) &ibot2_info,
2130 },
2131 #endif
2132
2133 /*-------------------------------------------------------------*/
2134
2135 #ifdef GENERIC
2136 /* module params can specify devices to use for control tests */
2137 { .driver_info = (unsigned long) &generic_info, },
2138 #endif
2139
2140 /*-------------------------------------------------------------*/
2141
2142 { }
2143 };
2144 MODULE_DEVICE_TABLE (usb, id_table);
2145
2146 static struct usb_driver usbtest_driver = {
2147 .name = "usbtest",
2148 .id_table = id_table,
2149 .probe = usbtest_probe,
2150 .ioctl = usbtest_ioctl,
2151 .disconnect = usbtest_disconnect,
2152 .suspend = usbtest_suspend,
2153 .resume = usbtest_resume,
2154 };
2155
2156 /*-------------------------------------------------------------------------*/
2157
2158 static int __init usbtest_init (void)
2159 {
2160 #ifdef GENERIC
2161 if (vendor)
2162 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product);
2163 #endif
2164 return usb_register (&usbtest_driver);
2165 }
2166 module_init (usbtest_init);
2167
2168 static void __exit usbtest_exit (void)
2169 {
2170 usb_deregister (&usbtest_driver);
2171 }
2172 module_exit (usbtest_exit);
2173
2174 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2175 MODULE_LICENSE ("GPL");
2176
Linux with added FPC-III support