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eCryptfs: Allow 2 scatterlist entries for encrypted filenames
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / misc / usbtest.c
bloba35b427c0bac59ce6965b37d28c6a8748ae03dd5
1 #include <linux/kernel.h>
2 #include <linux/errno.h>
3 #include <linux/init.h>
4 #include <linux/slab.h>
5 #include <linux/mm.h>
6 #include <linux/module.h>
7 #include <linux/moduleparam.h>
8 #include <linux/scatterlist.h>
9 #include <linux/mutex.h>
10
11 #include <linux/usb.h>
12
13
14 /*-------------------------------------------------------------------------*/
15
16 /* FIXME make these public somewhere; usbdevfs.h? */
17 struct usbtest_param {
18 /* inputs */
19 unsigned test_num; /* 0..(TEST_CASES-1) */
20 unsigned iterations;
21 unsigned length;
22 unsigned vary;
23 unsigned sglen;
24
25 /* outputs */
26 struct timeval duration;
27 };
28 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
29
30 /*-------------------------------------------------------------------------*/
31
32 #define GENERIC /* let probe() bind using module params */
33
34 /* Some devices that can be used for testing will have "real" drivers.
35 * Entries for those need to be enabled here by hand, after disabling
36 * that "real" driver.
37 */
38 //#define IBOT2 /* grab iBOT2 webcams */
39 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
40
41 /*-------------------------------------------------------------------------*/
42
43 struct usbtest_info {
44 const char *name;
45 u8 ep_in; /* bulk/intr source */
46 u8 ep_out; /* bulk/intr sink */
47 unsigned autoconf:1;
48 unsigned ctrl_out:1;
49 unsigned iso:1; /* try iso in/out */
50 int alt;
51 };
52
53 /* this is accessed only through usbfs ioctl calls.
54 * one ioctl to issue a test ... one lock per device.
55 * tests create other threads if they need them.
56 * urbs and buffers are allocated dynamically,
57 * and data generated deterministically.
58 */
59 struct usbtest_dev {
60 struct usb_interface *intf;
61 struct usbtest_info *info;
62 int in_pipe;
63 int out_pipe;
64 int in_iso_pipe;
65 int out_iso_pipe;
66 struct usb_endpoint_descriptor *iso_in, *iso_out;
67 struct mutex lock;
68
69 #define TBUF_SIZE 256
70 u8 *buf;
71 };
72
73 static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
74 {
75 return interface_to_usbdev(test->intf);
76 }
77
78 /* set up all urbs so they can be used with either bulk or interrupt */
79 #define INTERRUPT_RATE 1 /* msec/transfer */
80
81 #define ERROR(tdev, fmt, args...) \
82 dev_err(&(tdev)->intf->dev , fmt , ## args)
83 #define WARNING(tdev, fmt, args...) \
84 dev_warn(&(tdev)->intf->dev , fmt , ## args)
85
86 /*-------------------------------------------------------------------------*/
87
88 static int
89 get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
90 {
91 int tmp;
92 struct usb_host_interface *alt;
93 struct usb_host_endpoint *in, *out;
94 struct usb_host_endpoint *iso_in, *iso_out;
95 struct usb_device *udev;
96
97 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
98 unsigned ep;
99
100 in = out = NULL;
101 iso_in = iso_out = NULL;
102 alt = intf->altsetting + tmp;
103
104 /* take the first altsetting with in-bulk + out-bulk;
105 * ignore other endpoints and altsetttings.
106 */
107 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
108 struct usb_host_endpoint *e;
109
110 e = alt->endpoint + ep;
111 switch (e->desc.bmAttributes) {
112 case USB_ENDPOINT_XFER_BULK:
113 break;
114 case USB_ENDPOINT_XFER_ISOC:
115 if (dev->info->iso)
116 goto try_iso;
117 /* FALLTHROUGH */
118 default:
119 continue;
120 }
121 if (usb_endpoint_dir_in(&e->desc)) {
122 if (!in)
123 in = e;
124 } else {
125 if (!out)
126 out = e;
127 }
128 continue;
129 try_iso:
130 if (usb_endpoint_dir_in(&e->desc)) {
131 if (!iso_in)
132 iso_in = e;
133 } else {
134 if (!iso_out)
135 iso_out = e;
136 }
137 }
138 if ((in && out) || iso_in || iso_out)
139 goto found;
140 }
141 return -EINVAL;
142
143 found:
144 udev = testdev_to_usbdev(dev);
145 if (alt->desc.bAlternateSetting != 0) {
146 tmp = usb_set_interface(udev,
147 alt->desc.bInterfaceNumber,
148 alt->desc.bAlternateSetting);
149 if (tmp < 0)
150 return tmp;
151 }
152
153 if (in) {
154 dev->in_pipe = usb_rcvbulkpipe(udev,
155 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
156 dev->out_pipe = usb_sndbulkpipe(udev,
157 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
158 }
159 if (iso_in) {
160 dev->iso_in = &iso_in->desc;
161 dev->in_iso_pipe = usb_rcvisocpipe(udev,
162 iso_in->desc.bEndpointAddress
163 & USB_ENDPOINT_NUMBER_MASK);
164 }
165
166 if (iso_out) {
167 dev->iso_out = &iso_out->desc;
168 dev->out_iso_pipe = usb_sndisocpipe(udev,
169 iso_out->desc.bEndpointAddress
170 & USB_ENDPOINT_NUMBER_MASK);
171 }
172 return 0;
173 }
174
175 /*-------------------------------------------------------------------------*/
176
177 /* Support for testing basic non-queued I/O streams.
178 *
179 * These just package urbs as requests that can be easily canceled.
180 * Each urb's data buffer is dynamically allocated; callers can fill
181 * them with non-zero test data (or test for it) when appropriate.
182 */
183
184 static void simple_callback(struct urb *urb)
185 {
186 complete(urb->context);
187 }
188
189 static struct urb *simple_alloc_urb(
190 struct usb_device *udev,
191 int pipe,
192 unsigned long bytes
193 )
194 {
195 struct urb *urb;
196
197 urb = usb_alloc_urb(0, GFP_KERNEL);
198 if (!urb)
199 return urb;
200 usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, simple_callback, NULL);
201 urb->interval = (udev->speed == USB_SPEED_HIGH)
202 ? (INTERRUPT_RATE << 3)
203 : INTERRUPT_RATE;
204 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
205 if (usb_pipein(pipe))
206 urb->transfer_flags |= URB_SHORT_NOT_OK;
207 urb->transfer_buffer = usb_alloc_coherent(udev, bytes, GFP_KERNEL,
208 &urb->transfer_dma);
209 if (!urb->transfer_buffer) {
210 usb_free_urb(urb);
211 urb = NULL;
212 } else
213 memset(urb->transfer_buffer, 0, bytes);
214 return urb;
215 }
216
217 static unsigned pattern;
218 static unsigned mod_pattern;
219 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
220 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
221
222 static inline void simple_fill_buf(struct urb *urb)
223 {
224 unsigned i;
225 u8 *buf = urb->transfer_buffer;
226 unsigned len = urb->transfer_buffer_length;
227
228 switch (pattern) {
229 default:
230 /* FALLTHROUGH */
231 case 0:
232 memset(buf, 0, len);
233 break;
234 case 1: /* mod63 */
235 for (i = 0; i < len; i++)
236 *buf++ = (u8) (i % 63);
237 break;
238 }
239 }
240
241 static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
242 {
243 unsigned i;
244 u8 expected;
245 u8 *buf = urb->transfer_buffer;
246 unsigned len = urb->actual_length;
247
248 for (i = 0; i < len; i++, buf++) {
249 switch (pattern) {
250 /* all-zeroes has no synchronization issues */
251 case 0:
252 expected = 0;
253 break;
254 /* mod63 stays in sync with short-terminated transfers,
255 * or otherwise when host and gadget agree on how large
256 * each usb transfer request should be. resync is done
257 * with set_interface or set_config.
258 */
259 case 1: /* mod63 */
260 expected = i % 63;
261 break;
262 /* always fail unsupported patterns */
263 default:
264 expected = !*buf;
265 break;
266 }
267 if (*buf == expected)
268 continue;
269 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
270 return -EINVAL;
271 }
272 return 0;
273 }
274
275 static void simple_free_urb(struct urb *urb)
276 {
277 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
278 urb->transfer_buffer, urb->transfer_dma);
279 usb_free_urb(urb);
280 }
281
282 static int simple_io(
283 struct usbtest_dev *tdev,
284 struct urb *urb,
285 int iterations,
286 int vary,
287 int expected,
288 const char *label
289 )
290 {
291 struct usb_device *udev = urb->dev;
292 int max = urb->transfer_buffer_length;
293 struct completion completion;
294 int retval = 0;
295
296 urb->context = &completion;
297 while (retval == 0 && iterations-- > 0) {
298 init_completion(&completion);
299 if (usb_pipeout(urb->pipe))
300 simple_fill_buf(urb);
301 retval = usb_submit_urb(urb, GFP_KERNEL);
302 if (retval != 0)
303 break;
304
305 /* NOTE: no timeouts; can't be broken out of by interrupt */
306 wait_for_completion(&completion);
307 retval = urb->status;
308 urb->dev = udev;
309 if (retval == 0 && usb_pipein(urb->pipe))
310 retval = simple_check_buf(tdev, urb);
311
312 if (vary) {
313 int len = urb->transfer_buffer_length;
314
315 len += vary;
316 len %= max;
317 if (len == 0)
318 len = (vary < max) ? vary : max;
319 urb->transfer_buffer_length = len;
320 }
321
322 /* FIXME if endpoint halted, clear halt (and log) */
323 }
324 urb->transfer_buffer_length = max;
325
326 if (expected != retval)
327 dev_err(&udev->dev,
328 "%s failed, iterations left %d, status %d (not %d)\n",
329 label, iterations, retval, expected);
330 return retval;
331 }
332
333
334 /*-------------------------------------------------------------------------*/
335
336 /* We use scatterlist primitives to test queued I/O.
337 * Yes, this also tests the scatterlist primitives.
338 */
339
340 static void free_sglist(struct scatterlist *sg, int nents)
341 {
342 unsigned i;
343
344 if (!sg)
345 return;
346 for (i = 0; i < nents; i++) {
347 if (!sg_page(&sg[i]))
348 continue;
349 kfree(sg_virt(&sg[i]));
350 }
351 kfree(sg);
352 }
353
354 static struct scatterlist *
355 alloc_sglist(int nents, int max, int vary)
356 {
357 struct scatterlist *sg;
358 unsigned i;
359 unsigned size = max;
360
361 sg = kmalloc(nents * sizeof *sg, GFP_KERNEL);
362 if (!sg)
363 return NULL;
364 sg_init_table(sg, nents);
365
366 for (i = 0; i < nents; i++) {
367 char *buf;
368 unsigned j;
369
370 buf = kzalloc(size, GFP_KERNEL);
371 if (!buf) {
372 free_sglist(sg, i);
373 return NULL;
374 }
375
376 /* kmalloc pages are always physically contiguous! */
377 sg_set_buf(&sg[i], buf, size);
378
379 switch (pattern) {
380 case 0:
381 /* already zeroed */
382 break;
383 case 1:
384 for (j = 0; j < size; j++)
385 *buf++ = (u8) (j % 63);
386 break;
387 }
388
389 if (vary) {
390 size += vary;
391 size %= max;
392 if (size == 0)
393 size = (vary < max) ? vary : max;
394 }
395 }
396
397 return sg;
398 }
399
400 static int perform_sglist(
401 struct usbtest_dev *tdev,
402 unsigned iterations,
403 int pipe,
404 struct usb_sg_request *req,
405 struct scatterlist *sg,
406 int nents
407 )
408 {
409 struct usb_device *udev = testdev_to_usbdev(tdev);
410 int retval = 0;
411
412 while (retval == 0 && iterations-- > 0) {
413 retval = usb_sg_init(req, udev, pipe,
414 (udev->speed == USB_SPEED_HIGH)
415 ? (INTERRUPT_RATE << 3)
416 : INTERRUPT_RATE,
417 sg, nents, 0, GFP_KERNEL);
418
419 if (retval)
420 break;
421 usb_sg_wait(req);
422 retval = req->status;
423
424 /* FIXME check resulting data pattern */
425
426 /* FIXME if endpoint halted, clear halt (and log) */
427 }
428
429 /* FIXME for unlink or fault handling tests, don't report
430 * failure if retval is as we expected ...
431 */
432 if (retval)
433 ERROR(tdev, "perform_sglist failed, "
434 "iterations left %d, status %d\n",
435 iterations, retval);
436 return retval;
437 }
438
439
440 /*-------------------------------------------------------------------------*/
441
442 /* unqueued control message testing
443 *
444 * there's a nice set of device functional requirements in chapter 9 of the
445 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
446 * special test firmware.
447 *
448 * we know the device is configured (or suspended) by the time it's visible
449 * through usbfs. we can't change that, so we won't test enumeration (which
450 * worked 'well enough' to get here, this time), power management (ditto),
451 * or remote wakeup (which needs human interaction).
452 */
453
454 static unsigned realworld = 1;
455 module_param(realworld, uint, 0);
456 MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
457
458 static int get_altsetting(struct usbtest_dev *dev)
459 {
460 struct usb_interface *iface = dev->intf;
461 struct usb_device *udev = interface_to_usbdev(iface);
462 int retval;
463
464 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
465 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
466 0, iface->altsetting[0].desc.bInterfaceNumber,
467 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
468 switch (retval) {
469 case 1:
470 return dev->buf[0];
471 case 0:
472 retval = -ERANGE;
473 /* FALLTHROUGH */
474 default:
475 return retval;
476 }
477 }
478
479 static int set_altsetting(struct usbtest_dev *dev, int alternate)
480 {
481 struct usb_interface *iface = dev->intf;
482 struct usb_device *udev;
483
484 if (alternate < 0 || alternate >= 256)
485 return -EINVAL;
486
487 udev = interface_to_usbdev(iface);
488 return usb_set_interface(udev,
489 iface->altsetting[0].desc.bInterfaceNumber,
490 alternate);
491 }
492
493 static int is_good_config(struct usbtest_dev *tdev, int len)
494 {
495 struct usb_config_descriptor *config;
496
497 if (len < sizeof *config)
498 return 0;
499 config = (struct usb_config_descriptor *) tdev->buf;
500
501 switch (config->bDescriptorType) {
502 case USB_DT_CONFIG:
503 case USB_DT_OTHER_SPEED_CONFIG:
504 if (config->bLength != 9) {
505 ERROR(tdev, "bogus config descriptor length\n");
506 return 0;
507 }
508 /* this bit 'must be 1' but often isn't */
509 if (!realworld && !(config->bmAttributes & 0x80)) {
510 ERROR(tdev, "high bit of config attributes not set\n");
511 return 0;
512 }
513 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
514 ERROR(tdev, "reserved config bits set\n");
515 return 0;
516 }
517 break;
518 default:
519 return 0;
520 }
521
522 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
523 return 1;
524 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
525 return 1;
526 ERROR(tdev, "bogus config descriptor read size\n");
527 return 0;
528 }
529
530 /* sanity test for standard requests working with usb_control_mesg() and some
531 * of the utility functions which use it.
532 *
533 * this doesn't test how endpoint halts behave or data toggles get set, since
534 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
535 * halt or toggle). toggle testing is impractical without support from hcds.
536 *
537 * this avoids failing devices linux would normally work with, by not testing
538 * config/altsetting operations for devices that only support their defaults.
539 * such devices rarely support those needless operations.
540 *
541 * NOTE that since this is a sanity test, it's not examining boundary cases
542 * to see if usbcore, hcd, and device all behave right. such testing would
543 * involve varied read sizes and other operation sequences.
544 */
545 static int ch9_postconfig(struct usbtest_dev *dev)
546 {
547 struct usb_interface *iface = dev->intf;
548 struct usb_device *udev = interface_to_usbdev(iface);
549 int i, alt, retval;
550
551 /* [9.2.3] if there's more than one altsetting, we need to be able to
552 * set and get each one. mostly trusts the descriptors from usbcore.
553 */
554 for (i = 0; i < iface->num_altsetting; i++) {
555
556 /* 9.2.3 constrains the range here */
557 alt = iface->altsetting[i].desc.bAlternateSetting;
558 if (alt < 0 || alt >= iface->num_altsetting) {
559 dev_err(&iface->dev,
560 "invalid alt [%d].bAltSetting = %d\n",
561 i, alt);
562 }
563
564 /* [real world] get/set unimplemented if there's only one */
565 if (realworld && iface->num_altsetting == 1)
566 continue;
567
568 /* [9.4.10] set_interface */
569 retval = set_altsetting(dev, alt);
570 if (retval) {
571 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
572 alt, retval);
573 return retval;
574 }
575
576 /* [9.4.4] get_interface always works */
577 retval = get_altsetting(dev);
578 if (retval != alt) {
579 dev_err(&iface->dev, "get alt should be %d, was %d\n",
580 alt, retval);
581 return (retval < 0) ? retval : -EDOM;
582 }
583
584 }
585
586 /* [real world] get_config unimplemented if there's only one */
587 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
588 int expected = udev->actconfig->desc.bConfigurationValue;
589
590 /* [9.4.2] get_configuration always works
591 * ... although some cheap devices (like one TI Hub I've got)
592 * won't return config descriptors except before set_config.
593 */
594 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
595 USB_REQ_GET_CONFIGURATION,
596 USB_DIR_IN | USB_RECIP_DEVICE,
597 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
598 if (retval != 1 || dev->buf[0] != expected) {
599 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
600 retval, dev->buf[0], expected);
601 return (retval < 0) ? retval : -EDOM;
602 }
603 }
604
605 /* there's always [9.4.3] a device descriptor [9.6.1] */
606 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
607 dev->buf, sizeof udev->descriptor);
608 if (retval != sizeof udev->descriptor) {
609 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
610 return (retval < 0) ? retval : -EDOM;
611 }
612
613 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
614 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
615 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
616 dev->buf, TBUF_SIZE);
617 if (!is_good_config(dev, retval)) {
618 dev_err(&iface->dev,
619 "config [%d] descriptor --> %d\n",
620 i, retval);
621 return (retval < 0) ? retval : -EDOM;
622 }
623
624 /* FIXME cross-checking udev->config[i] to make sure usbcore
625 * parsed it right (etc) would be good testing paranoia
626 */
627 }
628
629 /* and sometimes [9.2.6.6] speed dependent descriptors */
630 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
631 struct usb_qualifier_descriptor *d = NULL;
632
633 /* device qualifier [9.6.2] */
634 retval = usb_get_descriptor(udev,
635 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
636 sizeof(struct usb_qualifier_descriptor));
637 if (retval == -EPIPE) {
638 if (udev->speed == USB_SPEED_HIGH) {
639 dev_err(&iface->dev,
640 "hs dev qualifier --> %d\n",
641 retval);
642 return (retval < 0) ? retval : -EDOM;
643 }
644 /* usb2.0 but not high-speed capable; fine */
645 } else if (retval != sizeof(struct usb_qualifier_descriptor)) {
646 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
647 return (retval < 0) ? retval : -EDOM;
648 } else
649 d = (struct usb_qualifier_descriptor *) dev->buf;
650
651 /* might not have [9.6.2] any other-speed configs [9.6.4] */
652 if (d) {
653 unsigned max = d->bNumConfigurations;
654 for (i = 0; i < max; i++) {
655 retval = usb_get_descriptor(udev,
656 USB_DT_OTHER_SPEED_CONFIG, i,
657 dev->buf, TBUF_SIZE);
658 if (!is_good_config(dev, retval)) {
659 dev_err(&iface->dev,
660 "other speed config --> %d\n",
661 retval);
662 return (retval < 0) ? retval : -EDOM;
663 }
664 }
665 }
666 }
667 /* FIXME fetch strings from at least the device descriptor */
668
669 /* [9.4.5] get_status always works */
670 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
671 if (retval != 2) {
672 dev_err(&iface->dev, "get dev status --> %d\n", retval);
673 return (retval < 0) ? retval : -EDOM;
674 }
675
676 /* FIXME configuration.bmAttributes says if we could try to set/clear
677 * the device's remote wakeup feature ... if we can, test that here
678 */
679
680 retval = usb_get_status(udev, USB_RECIP_INTERFACE,
681 iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
682 if (retval != 2) {
683 dev_err(&iface->dev, "get interface status --> %d\n", retval);
684 return (retval < 0) ? retval : -EDOM;
685 }
686 /* FIXME get status for each endpoint in the interface */
687
688 return 0;
689 }
690
691 /*-------------------------------------------------------------------------*/
692
693 /* use ch9 requests to test whether:
694 * (a) queues work for control, keeping N subtests queued and
695 * active (auto-resubmit) for M loops through the queue.
696 * (b) protocol stalls (control-only) will autorecover.
697 * it's not like bulk/intr; no halt clearing.
698 * (c) short control reads are reported and handled.
699 * (d) queues are always processed in-order
700 */
701
702 struct ctrl_ctx {
703 spinlock_t lock;
704 struct usbtest_dev *dev;
705 struct completion complete;
706 unsigned count;
707 unsigned pending;
708 int status;
709 struct urb **urb;
710 struct usbtest_param *param;
711 int last;
712 };
713
714 #define NUM_SUBCASES 15 /* how many test subcases here? */
715
716 struct subcase {
717 struct usb_ctrlrequest setup;
718 int number;
719 int expected;
720 };
721
722 static void ctrl_complete(struct urb *urb)
723 {
724 struct ctrl_ctx *ctx = urb->context;
725 struct usb_ctrlrequest *reqp;
726 struct subcase *subcase;
727 int status = urb->status;
728
729 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
730 subcase = container_of(reqp, struct subcase, setup);
731
732 spin_lock(&ctx->lock);
733 ctx->count--;
734 ctx->pending--;
735
736 /* queue must transfer and complete in fifo order, unless
737 * usb_unlink_urb() is used to unlink something not at the
738 * physical queue head (not tested).
739 */
740 if (subcase->number > 0) {
741 if ((subcase->number - ctx->last) != 1) {
742 ERROR(ctx->dev,
743 "subcase %d completed out of order, last %d\n",
744 subcase->number, ctx->last);
745 status = -EDOM;
746 ctx->last = subcase->number;
747 goto error;
748 }
749 }
750 ctx->last = subcase->number;
751
752 /* succeed or fault in only one way? */
753 if (status == subcase->expected)
754 status = 0;
755
756 /* async unlink for cleanup? */
757 else if (status != -ECONNRESET) {
758
759 /* some faults are allowed, not required */
760 if (subcase->expected > 0 && (
761 ((status == -subcase->expected /* happened */
762 || status == 0)))) /* didn't */
763 status = 0;
764 /* sometimes more than one fault is allowed */
765 else if (subcase->number == 12 && status == -EPIPE)
766 status = 0;
767 else
768 ERROR(ctx->dev, "subtest %d error, status %d\n",
769 subcase->number, status);
770 }
771
772 /* unexpected status codes mean errors; ideally, in hardware */
773 if (status) {
774 error:
775 if (ctx->status == 0) {
776 int i;
777
778 ctx->status = status;
779 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
780 "%d left, subcase %d, len %d/%d\n",
781 reqp->bRequestType, reqp->bRequest,
782 status, ctx->count, subcase->number,
783 urb->actual_length,
784 urb->transfer_buffer_length);
785
786 /* FIXME this "unlink everything" exit route should
787 * be a separate test case.
788 */
789
790 /* unlink whatever's still pending */
791 for (i = 1; i < ctx->param->sglen; i++) {
792 struct urb *u = ctx->urb[
793 (i + subcase->number)
794 % ctx->param->sglen];
795
796 if (u == urb || !u->dev)
797 continue;
798 spin_unlock(&ctx->lock);
799 status = usb_unlink_urb(u);
800 spin_lock(&ctx->lock);
801 switch (status) {
802 case -EINPROGRESS:
803 case -EBUSY:
804 case -EIDRM:
805 continue;
806 default:
807 ERROR(ctx->dev, "urb unlink --> %d\n",
808 status);
809 }
810 }
811 status = ctx->status;
812 }
813 }
814
815 /* resubmit if we need to, else mark this as done */
816 if ((status == 0) && (ctx->pending < ctx->count)) {
817 status = usb_submit_urb(urb, GFP_ATOMIC);
818 if (status != 0) {
819 ERROR(ctx->dev,
820 "can't resubmit ctrl %02x.%02x, err %d\n",
821 reqp->bRequestType, reqp->bRequest, status);
822 urb->dev = NULL;
823 } else
824 ctx->pending++;
825 } else
826 urb->dev = NULL;
827
828 /* signal completion when nothing's queued */
829 if (ctx->pending == 0)
830 complete(&ctx->complete);
831 spin_unlock(&ctx->lock);
832 }
833
834 static int
835 test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
836 {
837 struct usb_device *udev = testdev_to_usbdev(dev);
838 struct urb **urb;
839 struct ctrl_ctx context;
840 int i;
841
842 spin_lock_init(&context.lock);
843 context.dev = dev;
844 init_completion(&context.complete);
845 context.count = param->sglen * param->iterations;
846 context.pending = 0;
847 context.status = -ENOMEM;
848 context.param = param;
849 context.last = -1;
850
851 /* allocate and init the urbs we'll queue.
852 * as with bulk/intr sglists, sglen is the queue depth; it also
853 * controls which subtests run (more tests than sglen) or rerun.
854 */
855 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
856 if (!urb)
857 return -ENOMEM;
858 for (i = 0; i < param->sglen; i++) {
859 int pipe = usb_rcvctrlpipe(udev, 0);
860 unsigned len;
861 struct urb *u;
862 struct usb_ctrlrequest req;
863 struct subcase *reqp;
864
865 /* sign of this variable means:
866 * -: tested code must return this (negative) error code
867 * +: tested code may return this (negative too) error code
868 */
869 int expected = 0;
870
871 /* requests here are mostly expected to succeed on any
872 * device, but some are chosen to trigger protocol stalls
873 * or short reads.
874 */
875 memset(&req, 0, sizeof req);
876 req.bRequest = USB_REQ_GET_DESCRIPTOR;
877 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
878
879 switch (i % NUM_SUBCASES) {
880 case 0: /* get device descriptor */
881 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
882 len = sizeof(struct usb_device_descriptor);
883 break;
884 case 1: /* get first config descriptor (only) */
885 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
886 len = sizeof(struct usb_config_descriptor);
887 break;
888 case 2: /* get altsetting (OFTEN STALLS) */
889 req.bRequest = USB_REQ_GET_INTERFACE;
890 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
891 /* index = 0 means first interface */
892 len = 1;
893 expected = EPIPE;
894 break;
895 case 3: /* get interface status */
896 req.bRequest = USB_REQ_GET_STATUS;
897 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
898 /* interface 0 */
899 len = 2;
900 break;
901 case 4: /* get device status */
902 req.bRequest = USB_REQ_GET_STATUS;
903 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
904 len = 2;
905 break;
906 case 5: /* get device qualifier (MAY STALL) */
907 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
908 len = sizeof(struct usb_qualifier_descriptor);
909 if (udev->speed != USB_SPEED_HIGH)
910 expected = EPIPE;
911 break;
912 case 6: /* get first config descriptor, plus interface */
913 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
914 len = sizeof(struct usb_config_descriptor);
915 len += sizeof(struct usb_interface_descriptor);
916 break;
917 case 7: /* get interface descriptor (ALWAYS STALLS) */
918 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
919 /* interface == 0 */
920 len = sizeof(struct usb_interface_descriptor);
921 expected = -EPIPE;
922 break;
923 /* NOTE: two consecutive stalls in the queue here.
924 * that tests fault recovery a bit more aggressively. */
925 case 8: /* clear endpoint halt (MAY STALL) */
926 req.bRequest = USB_REQ_CLEAR_FEATURE;
927 req.bRequestType = USB_RECIP_ENDPOINT;
928 /* wValue 0 == ep halt */
929 /* wIndex 0 == ep0 (shouldn't halt!) */
930 len = 0;
931 pipe = usb_sndctrlpipe(udev, 0);
932 expected = EPIPE;
933 break;
934 case 9: /* get endpoint status */
935 req.bRequest = USB_REQ_GET_STATUS;
936 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
937 /* endpoint 0 */
938 len = 2;
939 break;
940 case 10: /* trigger short read (EREMOTEIO) */
941 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
942 len = 1024;
943 expected = -EREMOTEIO;
944 break;
945 /* NOTE: two consecutive _different_ faults in the queue. */
946 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
947 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
948 /* endpoint == 0 */
949 len = sizeof(struct usb_interface_descriptor);
950 expected = EPIPE;
951 break;
952 /* NOTE: sometimes even a third fault in the queue! */
953 case 12: /* get string 0 descriptor (MAY STALL) */
954 req.wValue = cpu_to_le16(USB_DT_STRING << 8);
955 /* string == 0, for language IDs */
956 len = sizeof(struct usb_interface_descriptor);
957 /* may succeed when > 4 languages */
958 expected = EREMOTEIO; /* or EPIPE, if no strings */
959 break;
960 case 13: /* short read, resembling case 10 */
961 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
962 /* last data packet "should" be DATA1, not DATA0 */
963 len = 1024 - udev->descriptor.bMaxPacketSize0;
964 expected = -EREMOTEIO;
965 break;
966 case 14: /* short read; try to fill the last packet */
967 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
968 /* device descriptor size == 18 bytes */
969 len = udev->descriptor.bMaxPacketSize0;
970 switch (len) {
971 case 8:
972 len = 24;
973 break;
974 case 16:
975 len = 32;
976 break;
977 }
978 expected = -EREMOTEIO;
979 break;
980 default:
981 ERROR(dev, "bogus number of ctrl queue testcases!\n");
982 context.status = -EINVAL;
983 goto cleanup;
984 }
985 req.wLength = cpu_to_le16(len);
986 urb[i] = u = simple_alloc_urb(udev, pipe, len);
987 if (!u)
988 goto cleanup;
989
990 reqp = kmalloc(sizeof *reqp, GFP_KERNEL);
991 if (!reqp)
992 goto cleanup;
993 reqp->setup = req;
994 reqp->number = i % NUM_SUBCASES;
995 reqp->expected = expected;
996 u->setup_packet = (char *) &reqp->setup;
997
998 u->context = &context;
999 u->complete = ctrl_complete;
1000 }
1001
1002 /* queue the urbs */
1003 context.urb = urb;
1004 spin_lock_irq(&context.lock);
1005 for (i = 0; i < param->sglen; i++) {
1006 context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
1007 if (context.status != 0) {
1008 ERROR(dev, "can't submit urb[%d], status %d\n",
1009 i, context.status);
1010 context.count = context.pending;
1011 break;
1012 }
1013 context.pending++;
1014 }
1015 spin_unlock_irq(&context.lock);
1016
1017 /* FIXME set timer and time out; provide a disconnect hook */
1018
1019 /* wait for the last one to complete */
1020 if (context.pending > 0)
1021 wait_for_completion(&context.complete);
1022
1023 cleanup:
1024 for (i = 0; i < param->sglen; i++) {
1025 if (!urb[i])
1026 continue;
1027 urb[i]->dev = udev;
1028 kfree(urb[i]->setup_packet);
1029 simple_free_urb(urb[i]);
1030 }
1031 kfree(urb);
1032 return context.status;
1033 }
1034 #undef NUM_SUBCASES
1035
1036
1037 /*-------------------------------------------------------------------------*/
1038
1039 static void unlink1_callback(struct urb *urb)
1040 {
1041 int status = urb->status;
1042
1043 /* we "know" -EPIPE (stall) never happens */
1044 if (!status)
1045 status = usb_submit_urb(urb, GFP_ATOMIC);
1046 if (status) {
1047 urb->status = status;
1048 complete(urb->context);
1049 }
1050 }
1051
1052 static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
1053 {
1054 struct urb *urb;
1055 struct completion completion;
1056 int retval = 0;
1057
1058 init_completion(&completion);
1059 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size);
1060 if (!urb)
1061 return -ENOMEM;
1062 urb->context = &completion;
1063 urb->complete = unlink1_callback;
1064
1065 /* keep the endpoint busy. there are lots of hc/hcd-internal
1066 * states, and testing should get to all of them over time.
1067 *
1068 * FIXME want additional tests for when endpoint is STALLing
1069 * due to errors, or is just NAKing requests.
1070 */
1071 retval = usb_submit_urb(urb, GFP_KERNEL);
1072 if (retval != 0) {
1073 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1074 return retval;
1075 }
1076
1077 /* unlinking that should always work. variable delay tests more
1078 * hcd states and code paths, even with little other system load.
1079 */
1080 msleep(jiffies % (2 * INTERRUPT_RATE));
1081 if (async) {
1082 while (!completion_done(&completion)) {
1083 retval = usb_unlink_urb(urb);
1084
1085 switch (retval) {
1086 case -EBUSY:
1087 case -EIDRM:
1088 /* we can't unlink urbs while they're completing
1089 * or if they've completed, and we haven't
1090 * resubmitted. "normal" drivers would prevent
1091 * resubmission, but since we're testing unlink
1092 * paths, we can't.
1093 */
1094 ERROR(dev, "unlink retry\n");
1095 continue;
1096 case 0:
1097 case -EINPROGRESS:
1098 break;
1099
1100 default:
1101 dev_err(&dev->intf->dev,
1102 "unlink fail %d\n", retval);
1103 return retval;
1104 }
1105
1106 break;
1107 }
1108 } else
1109 usb_kill_urb(urb);
1110
1111 wait_for_completion(&completion);
1112 retval = urb->status;
1113 simple_free_urb(urb);
1114
1115 if (async)
1116 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1117 else
1118 return (retval == -ENOENT || retval == -EPERM) ?
1119 0 : retval - 2000;
1120 }
1121
1122 static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
1123 {
1124 int retval = 0;
1125
1126 /* test sync and async paths */
1127 retval = unlink1(dev, pipe, len, 1);
1128 if (!retval)
1129 retval = unlink1(dev, pipe, len, 0);
1130 return retval;
1131 }
1132
1133 /*-------------------------------------------------------------------------*/
1134
1135 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1136 {
1137 int retval;
1138 u16 status;
1139
1140 /* shouldn't look or act halted */
1141 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1142 if (retval < 0) {
1143 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1144 ep, retval);
1145 return retval;
1146 }
1147 if (status != 0) {
1148 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1149 return -EINVAL;
1150 }
1151 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1152 if (retval != 0)
1153 return -EINVAL;
1154 return 0;
1155 }
1156
1157 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1158 {
1159 int retval;
1160 u16 status;
1161
1162 /* should look and act halted */
1163 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1164 if (retval < 0) {
1165 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1166 ep, retval);
1167 return retval;
1168 }
1169 le16_to_cpus(&status);
1170 if (status != 1) {
1171 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1172 return -EINVAL;
1173 }
1174 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1175 if (retval != -EPIPE)
1176 return -EINVAL;
1177 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1178 if (retval != -EPIPE)
1179 return -EINVAL;
1180 return 0;
1181 }
1182
1183 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1184 {
1185 int retval;
1186
1187 /* shouldn't look or act halted now */
1188 retval = verify_not_halted(tdev, ep, urb);
1189 if (retval < 0)
1190 return retval;
1191
1192 /* set halt (protocol test only), verify it worked */
1193 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
1194 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1195 USB_ENDPOINT_HALT, ep,
1196 NULL, 0, USB_CTRL_SET_TIMEOUT);
1197 if (retval < 0) {
1198 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1199 return retval;
1200 }
1201 retval = verify_halted(tdev, ep, urb);
1202 if (retval < 0)
1203 return retval;
1204
1205 /* clear halt (tests API + protocol), verify it worked */
1206 retval = usb_clear_halt(urb->dev, urb->pipe);
1207 if (retval < 0) {
1208 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1209 return retval;
1210 }
1211 retval = verify_not_halted(tdev, ep, urb);
1212 if (retval < 0)
1213 return retval;
1214
1215 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1216
1217 return 0;
1218 }
1219
1220 static int halt_simple(struct usbtest_dev *dev)
1221 {
1222 int ep;
1223 int retval = 0;
1224 struct urb *urb;
1225
1226 urb = simple_alloc_urb(testdev_to_usbdev(dev), 0, 512);
1227 if (urb == NULL)
1228 return -ENOMEM;
1229
1230 if (dev->in_pipe) {
1231 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
1232 urb->pipe = dev->in_pipe;
1233 retval = test_halt(dev, ep, urb);
1234 if (retval < 0)
1235 goto done;
1236 }
1237
1238 if (dev->out_pipe) {
1239 ep = usb_pipeendpoint(dev->out_pipe);
1240 urb->pipe = dev->out_pipe;
1241 retval = test_halt(dev, ep, urb);
1242 }
1243 done:
1244 simple_free_urb(urb);
1245 return retval;
1246 }
1247
1248 /*-------------------------------------------------------------------------*/
1249
1250 /* Control OUT tests use the vendor control requests from Intel's
1251 * USB 2.0 compliance test device: write a buffer, read it back.
1252 *
1253 * Intel's spec only _requires_ that it work for one packet, which
1254 * is pretty weak. Some HCDs place limits here; most devices will
1255 * need to be able to handle more than one OUT data packet. We'll
1256 * try whatever we're told to try.
1257 */
1258 static int ctrl_out(struct usbtest_dev *dev,
1259 unsigned count, unsigned length, unsigned vary)
1260 {
1261 unsigned i, j, len;
1262 int retval;
1263 u8 *buf;
1264 char *what = "?";
1265 struct usb_device *udev;
1266
1267 if (length < 1 || length > 0xffff || vary >= length)
1268 return -EINVAL;
1269
1270 buf = kmalloc(length, GFP_KERNEL);
1271 if (!buf)
1272 return -ENOMEM;
1273
1274 udev = testdev_to_usbdev(dev);
1275 len = length;
1276 retval = 0;
1277
1278 /* NOTE: hardware might well act differently if we pushed it
1279 * with lots back-to-back queued requests.
1280 */
1281 for (i = 0; i < count; i++) {
1282 /* write patterned data */
1283 for (j = 0; j < len; j++)
1284 buf[j] = i + j;
1285 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1286 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1287 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1288 if (retval != len) {
1289 what = "write";
1290 if (retval >= 0) {
1291 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1292 retval, len);
1293 retval = -EBADMSG;
1294 }
1295 break;
1296 }
1297
1298 /* read it back -- assuming nothing intervened!! */
1299 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
1300 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1301 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1302 if (retval != len) {
1303 what = "read";
1304 if (retval >= 0) {
1305 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1306 retval, len);
1307 retval = -EBADMSG;
1308 }
1309 break;
1310 }
1311
1312 /* fail if we can't verify */
1313 for (j = 0; j < len; j++) {
1314 if (buf[j] != (u8) (i + j)) {
1315 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1316 j, buf[j], (u8) i + j);
1317 retval = -EBADMSG;
1318 break;
1319 }
1320 }
1321 if (retval < 0) {
1322 what = "verify";
1323 break;
1324 }
1325
1326 len += vary;
1327
1328 /* [real world] the "zero bytes IN" case isn't really used.
1329 * hardware can easily trip up in this weird case, since its
1330 * status stage is IN, not OUT like other ep0in transfers.
1331 */
1332 if (len > length)
1333 len = realworld ? 1 : 0;
1334 }
1335
1336 if (retval < 0)
1337 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
1338 what, retval, i);
1339
1340 kfree(buf);
1341 return retval;
1342 }
1343
1344 /*-------------------------------------------------------------------------*/
1345
1346 /* ISO tests ... mimics common usage
1347 * - buffer length is split into N packets (mostly maxpacket sized)
1348 * - multi-buffers according to sglen
1349 */
1350
1351 struct iso_context {
1352 unsigned count;
1353 unsigned pending;
1354 spinlock_t lock;
1355 struct completion done;
1356 int submit_error;
1357 unsigned long errors;
1358 unsigned long packet_count;
1359 struct usbtest_dev *dev;
1360 };
1361
1362 static void iso_callback(struct urb *urb)
1363 {
1364 struct iso_context *ctx = urb->context;
1365
1366 spin_lock(&ctx->lock);
1367 ctx->count--;
1368
1369 ctx->packet_count += urb->number_of_packets;
1370 if (urb->error_count > 0)
1371 ctx->errors += urb->error_count;
1372 else if (urb->status != 0)
1373 ctx->errors += urb->number_of_packets;
1374 else if (urb->actual_length != urb->transfer_buffer_length)
1375 ctx->errors++;
1376
1377 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1378 && !ctx->submit_error) {
1379 int status = usb_submit_urb(urb, GFP_ATOMIC);
1380 switch (status) {
1381 case 0:
1382 goto done;
1383 default:
1384 dev_err(&ctx->dev->intf->dev,
1385 "iso resubmit err %d\n",
1386 status);
1387 /* FALLTHROUGH */
1388 case -ENODEV: /* disconnected */
1389 case -ESHUTDOWN: /* endpoint disabled */
1390 ctx->submit_error = 1;
1391 break;
1392 }
1393 }
1394
1395 ctx->pending--;
1396 if (ctx->pending == 0) {
1397 if (ctx->errors)
1398 dev_err(&ctx->dev->intf->dev,
1399 "iso test, %lu errors out of %lu\n",
1400 ctx->errors, ctx->packet_count);
1401 complete(&ctx->done);
1402 }
1403 done:
1404 spin_unlock(&ctx->lock);
1405 }
1406
1407 static struct urb *iso_alloc_urb(
1408 struct usb_device *udev,
1409 int pipe,
1410 struct usb_endpoint_descriptor *desc,
1411 long bytes
1412 )
1413 {
1414 struct urb *urb;
1415 unsigned i, maxp, packets;
1416
1417 if (bytes < 0 || !desc)
1418 return NULL;
1419 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1420 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1421 packets = DIV_ROUND_UP(bytes, maxp);
1422
1423 urb = usb_alloc_urb(packets, GFP_KERNEL);
1424 if (!urb)
1425 return urb;
1426 urb->dev = udev;
1427 urb->pipe = pipe;
1428
1429 urb->number_of_packets = packets;
1430 urb->transfer_buffer_length = bytes;
1431 urb->transfer_buffer = usb_alloc_coherent(udev, bytes, GFP_KERNEL,
1432 &urb->transfer_dma);
1433 if (!urb->transfer_buffer) {
1434 usb_free_urb(urb);
1435 return NULL;
1436 }
1437 memset(urb->transfer_buffer, 0, bytes);
1438 for (i = 0; i < packets; i++) {
1439 /* here, only the last packet will be short */
1440 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
1441 bytes -= urb->iso_frame_desc[i].length;
1442
1443 urb->iso_frame_desc[i].offset = maxp * i;
1444 }
1445
1446 urb->complete = iso_callback;
1447 /* urb->context = SET BY CALLER */
1448 urb->interval = 1 << (desc->bInterval - 1);
1449 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1450 return urb;
1451 }
1452
1453 static int
1454 test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param,
1455 int pipe, struct usb_endpoint_descriptor *desc)
1456 {
1457 struct iso_context context;
1458 struct usb_device *udev;
1459 unsigned i;
1460 unsigned long packets = 0;
1461 int status = 0;
1462 struct urb *urbs[10]; /* FIXME no limit */
1463
1464 if (param->sglen > 10)
1465 return -EDOM;
1466
1467 memset(&context, 0, sizeof context);
1468 context.count = param->iterations * param->sglen;
1469 context.dev = dev;
1470 init_completion(&context.done);
1471 spin_lock_init(&context.lock);
1472
1473 memset(urbs, 0, sizeof urbs);
1474 udev = testdev_to_usbdev(dev);
1475 dev_info(&dev->intf->dev,
1476 "... iso period %d %sframes, wMaxPacket %04x\n",
1477 1 << (desc->bInterval - 1),
1478 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1479 le16_to_cpu(desc->wMaxPacketSize));
1480
1481 for (i = 0; i < param->sglen; i++) {
1482 urbs[i] = iso_alloc_urb(udev, pipe, desc,
1483 param->length);
1484 if (!urbs[i]) {
1485 status = -ENOMEM;
1486 goto fail;
1487 }
1488 packets += urbs[i]->number_of_packets;
1489 urbs[i]->context = &context;
1490 }
1491 packets *= param->iterations;
1492 dev_info(&dev->intf->dev,
1493 "... total %lu msec (%lu packets)\n",
1494 (packets * (1 << (desc->bInterval - 1)))
1495 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1496 packets);
1497
1498 spin_lock_irq(&context.lock);
1499 for (i = 0; i < param->sglen; i++) {
1500 ++context.pending;
1501 status = usb_submit_urb(urbs[i], GFP_ATOMIC);
1502 if (status < 0) {
1503 ERROR(dev, "submit iso[%d], error %d\n", i, status);
1504 if (i == 0) {
1505 spin_unlock_irq(&context.lock);
1506 goto fail;
1507 }
1508
1509 simple_free_urb(urbs[i]);
1510 urbs[i] = NULL;
1511 context.pending--;
1512 context.submit_error = 1;
1513 break;
1514 }
1515 }
1516 spin_unlock_irq(&context.lock);
1517
1518 wait_for_completion(&context.done);
1519
1520 for (i = 0; i < param->sglen; i++) {
1521 if (urbs[i])
1522 simple_free_urb(urbs[i]);
1523 }
1524 /*
1525 * Isochronous transfers are expected to fail sometimes. As an
1526 * arbitrary limit, we will report an error if any submissions
1527 * fail or if the transfer failure rate is > 10%.
1528 */
1529 if (status != 0)
1530 ;
1531 else if (context.submit_error)
1532 status = -EACCES;
1533 else if (context.errors > context.packet_count / 10)
1534 status = -EIO;
1535 return status;
1536
1537 fail:
1538 for (i = 0; i < param->sglen; i++) {
1539 if (urbs[i])
1540 simple_free_urb(urbs[i]);
1541 }
1542 return status;
1543 }
1544
1545 /*-------------------------------------------------------------------------*/
1546
1547 /* We only have this one interface to user space, through usbfs.
1548 * User mode code can scan usbfs to find N different devices (maybe on
1549 * different busses) to use when testing, and allocate one thread per
1550 * test. So discovery is simplified, and we have no device naming issues.
1551 *
1552 * Don't use these only as stress/load tests. Use them along with with
1553 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1554 * video capture, and so on. Run different tests at different times, in
1555 * different sequences. Nothing here should interact with other devices,
1556 * except indirectly by consuming USB bandwidth and CPU resources for test
1557 * threads and request completion. But the only way to know that for sure
1558 * is to test when HC queues are in use by many devices.
1559 *
1560 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
1561 * it locks out usbcore in certain code paths. Notably, if you disconnect
1562 * the device-under-test, khubd will wait block forever waiting for the
1563 * ioctl to complete ... so that usb_disconnect() can abort the pending
1564 * urbs and then call usbtest_disconnect(). To abort a test, you're best
1565 * off just killing the userspace task and waiting for it to exit.
1566 */
1567
1568 /* No BKL needed */
1569 static int
1570 usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
1571 {
1572 struct usbtest_dev *dev = usb_get_intfdata(intf);
1573 struct usb_device *udev = testdev_to_usbdev(dev);
1574 struct usbtest_param *param = buf;
1575 int retval = -EOPNOTSUPP;
1576 struct urb *urb;
1577 struct scatterlist *sg;
1578 struct usb_sg_request req;
1579 struct timeval start;
1580 unsigned i;
1581
1582 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
1583
1584 pattern = mod_pattern;
1585
1586 if (code != USBTEST_REQUEST)
1587 return -EOPNOTSUPP;
1588
1589 if (param->iterations <= 0)
1590 return -EINVAL;
1591
1592 if (mutex_lock_interruptible(&dev->lock))
1593 return -ERESTARTSYS;
1594
1595 /* FIXME: What if a system sleep starts while a test is running? */
1596
1597 /* some devices, like ez-usb default devices, need a non-default
1598 * altsetting to have any active endpoints. some tests change
1599 * altsettings; force a default so most tests don't need to check.
1600 */
1601 if (dev->info->alt >= 0) {
1602 int res;
1603
1604 if (intf->altsetting->desc.bInterfaceNumber) {
1605 mutex_unlock(&dev->lock);
1606 return -ENODEV;
1607 }
1608 res = set_altsetting(dev, dev->info->alt);
1609 if (res) {
1610 dev_err(&intf->dev,
1611 "set altsetting to %d failed, %d\n",
1612 dev->info->alt, res);
1613 mutex_unlock(&dev->lock);
1614 return res;
1615 }
1616 }
1617
1618 /*
1619 * Just a bunch of test cases that every HCD is expected to handle.
1620 *
1621 * Some may need specific firmware, though it'd be good to have
1622 * one firmware image to handle all the test cases.
1623 *
1624 * FIXME add more tests! cancel requests, verify the data, control
1625 * queueing, concurrent read+write threads, and so on.
1626 */
1627 do_gettimeofday(&start);
1628 switch (param->test_num) {
1629
1630 case 0:
1631 dev_info(&intf->dev, "TEST 0: NOP\n");
1632 retval = 0;
1633 break;
1634
1635 /* Simple non-queued bulk I/O tests */
1636 case 1:
1637 if (dev->out_pipe == 0)
1638 break;
1639 dev_info(&intf->dev,
1640 "TEST 1: write %d bytes %u times\n",
1641 param->length, param->iterations);
1642 urb = simple_alloc_urb(udev, dev->out_pipe, param->length);
1643 if (!urb) {
1644 retval = -ENOMEM;
1645 break;
1646 }
1647 /* FIRMWARE: bulk sink (maybe accepts short writes) */
1648 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
1649 simple_free_urb(urb);
1650 break;
1651 case 2:
1652 if (dev->in_pipe == 0)
1653 break;
1654 dev_info(&intf->dev,
1655 "TEST 2: read %d bytes %u times\n",
1656 param->length, param->iterations);
1657 urb = simple_alloc_urb(udev, dev->in_pipe, param->length);
1658 if (!urb) {
1659 retval = -ENOMEM;
1660 break;
1661 }
1662 /* FIRMWARE: bulk source (maybe generates short writes) */
1663 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
1664 simple_free_urb(urb);
1665 break;
1666 case 3:
1667 if (dev->out_pipe == 0 || param->vary == 0)
1668 break;
1669 dev_info(&intf->dev,
1670 "TEST 3: write/%d 0..%d bytes %u times\n",
1671 param->vary, param->length, param->iterations);
1672 urb = simple_alloc_urb(udev, dev->out_pipe, param->length);
1673 if (!urb) {
1674 retval = -ENOMEM;
1675 break;
1676 }
1677 /* FIRMWARE: bulk sink (maybe accepts short writes) */
1678 retval = simple_io(dev, urb, param->iterations, param->vary,
1679 0, "test3");
1680 simple_free_urb(urb);
1681 break;
1682 case 4:
1683 if (dev->in_pipe == 0 || param->vary == 0)
1684 break;
1685 dev_info(&intf->dev,
1686 "TEST 4: read/%d 0..%d bytes %u times\n",
1687 param->vary, param->length, param->iterations);
1688 urb = simple_alloc_urb(udev, dev->in_pipe, param->length);
1689 if (!urb) {
1690 retval = -ENOMEM;
1691 break;
1692 }
1693 /* FIRMWARE: bulk source (maybe generates short writes) */
1694 retval = simple_io(dev, urb, param->iterations, param->vary,
1695 0, "test4");
1696 simple_free_urb(urb);
1697 break;
1698
1699 /* Queued bulk I/O tests */
1700 case 5:
1701 if (dev->out_pipe == 0 || param->sglen == 0)
1702 break;
1703 dev_info(&intf->dev,
1704 "TEST 5: write %d sglists %d entries of %d bytes\n",
1705 param->iterations,
1706 param->sglen, param->length);
1707 sg = alloc_sglist(param->sglen, param->length, 0);
1708 if (!sg) {
1709 retval = -ENOMEM;
1710 break;
1711 }
1712 /* FIRMWARE: bulk sink (maybe accepts short writes) */
1713 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1714 &req, sg, param->sglen);
1715 free_sglist(sg, param->sglen);
1716 break;
1717
1718 case 6:
1719 if (dev->in_pipe == 0 || param->sglen == 0)
1720 break;
1721 dev_info(&intf->dev,
1722 "TEST 6: read %d sglists %d entries of %d bytes\n",
1723 param->iterations,
1724 param->sglen, param->length);
1725 sg = alloc_sglist(param->sglen, param->length, 0);
1726 if (!sg) {
1727 retval = -ENOMEM;
1728 break;
1729 }
1730 /* FIRMWARE: bulk source (maybe generates short writes) */
1731 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1732 &req, sg, param->sglen);
1733 free_sglist(sg, param->sglen);
1734 break;
1735 case 7:
1736 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1737 break;
1738 dev_info(&intf->dev,
1739 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1740 param->vary, param->iterations,
1741 param->sglen, param->length);
1742 sg = alloc_sglist(param->sglen, param->length, param->vary);
1743 if (!sg) {
1744 retval = -ENOMEM;
1745 break;
1746 }
1747 /* FIRMWARE: bulk sink (maybe accepts short writes) */
1748 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1749 &req, sg, param->sglen);
1750 free_sglist(sg, param->sglen);
1751 break;
1752 case 8:
1753 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1754 break;
1755 dev_info(&intf->dev,
1756 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1757 param->vary, param->iterations,
1758 param->sglen, param->length);
1759 sg = alloc_sglist(param->sglen, param->length, param->vary);
1760 if (!sg) {
1761 retval = -ENOMEM;
1762 break;
1763 }
1764 /* FIRMWARE: bulk source (maybe generates short writes) */
1765 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1766 &req, sg, param->sglen);
1767 free_sglist(sg, param->sglen);
1768 break;
1769
1770 /* non-queued sanity tests for control (chapter 9 subset) */
1771 case 9:
1772 retval = 0;
1773 dev_info(&intf->dev,
1774 "TEST 9: ch9 (subset) control tests, %d times\n",
1775 param->iterations);
1776 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1777 retval = ch9_postconfig(dev);
1778 if (retval)
1779 dev_err(&intf->dev, "ch9 subset failed, "
1780 "iterations left %d\n", i);
1781 break;
1782
1783 /* queued control messaging */
1784 case 10:
1785 if (param->sglen == 0)
1786 break;
1787 retval = 0;
1788 dev_info(&intf->dev,
1789 "TEST 10: queue %d control calls, %d times\n",
1790 param->sglen,
1791 param->iterations);
1792 retval = test_ctrl_queue(dev, param);
1793 break;
1794
1795 /* simple non-queued unlinks (ring with one urb) */
1796 case 11:
1797 if (dev->in_pipe == 0 || !param->length)
1798 break;
1799 retval = 0;
1800 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
1801 param->iterations, param->length);
1802 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1803 retval = unlink_simple(dev, dev->in_pipe,
1804 param->length);
1805 if (retval)
1806 dev_err(&intf->dev, "unlink reads failed %d, "
1807 "iterations left %d\n", retval, i);
1808 break;
1809 case 12:
1810 if (dev->out_pipe == 0 || !param->length)
1811 break;
1812 retval = 0;
1813 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
1814 param->iterations, param->length);
1815 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1816 retval = unlink_simple(dev, dev->out_pipe,
1817 param->length);
1818 if (retval)
1819 dev_err(&intf->dev, "unlink writes failed %d, "
1820 "iterations left %d\n", retval, i);
1821 break;
1822
1823 /* ep halt tests */
1824 case 13:
1825 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1826 break;
1827 retval = 0;
1828 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
1829 param->iterations);
1830 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1831 retval = halt_simple(dev);
1832
1833 if (retval)
1834 ERROR(dev, "halts failed, iterations left %d\n", i);
1835 break;
1836
1837 /* control write tests */
1838 case 14:
1839 if (!dev->info->ctrl_out)
1840 break;
1841 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1842 param->iterations,
1843 realworld ? 1 : 0, param->length,
1844 param->vary);
1845 retval = ctrl_out(dev, param->iterations,
1846 param->length, param->vary);
1847 break;
1848
1849 /* iso write tests */
1850 case 15:
1851 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1852 break;
1853 dev_info(&intf->dev,
1854 "TEST 15: write %d iso, %d entries of %d bytes\n",
1855 param->iterations,
1856 param->sglen, param->length);
1857 /* FIRMWARE: iso sink */
1858 retval = test_iso_queue(dev, param,
1859 dev->out_iso_pipe, dev->iso_out);
1860 break;
1861
1862 /* iso read tests */
1863 case 16:
1864 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1865 break;
1866 dev_info(&intf->dev,
1867 "TEST 16: read %d iso, %d entries of %d bytes\n",
1868 param->iterations,
1869 param->sglen, param->length);
1870 /* FIRMWARE: iso source */
1871 retval = test_iso_queue(dev, param,
1872 dev->in_iso_pipe, dev->iso_in);
1873 break;
1874
1875 /* FIXME unlink from queue (ring with N urbs) */
1876
1877 /* FIXME scatterlist cancel (needs helper thread) */
1878
1879 }
1880 do_gettimeofday(&param->duration);
1881 param->duration.tv_sec -= start.tv_sec;
1882 param->duration.tv_usec -= start.tv_usec;
1883 if (param->duration.tv_usec < 0) {
1884 param->duration.tv_usec += 1000 * 1000;
1885 param->duration.tv_sec -= 1;
1886 }
1887 mutex_unlock(&dev->lock);
1888 return retval;
1889 }
1890
1891 /*-------------------------------------------------------------------------*/
1892
1893 static unsigned force_interrupt;
1894 module_param(force_interrupt, uint, 0);
1895 MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
1896
1897 #ifdef GENERIC
1898 static unsigned short vendor;
1899 module_param(vendor, ushort, 0);
1900 MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
1901
1902 static unsigned short product;
1903 module_param(product, ushort, 0);
1904 MODULE_PARM_DESC(product, "product code (from vendor)");
1905 #endif
1906
1907 static int
1908 usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
1909 {
1910 struct usb_device *udev;
1911 struct usbtest_dev *dev;
1912 struct usbtest_info *info;
1913 char *rtest, *wtest;
1914 char *irtest, *iwtest;
1915
1916 udev = interface_to_usbdev(intf);
1917
1918 #ifdef GENERIC
1919 /* specify devices by module parameters? */
1920 if (id->match_flags == 0) {
1921 /* vendor match required, product match optional */
1922 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1923 return -ENODEV;
1924 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1925 return -ENODEV;
1926 dev_info(&intf->dev, "matched module params, "
1927 "vend=0x%04x prod=0x%04x\n",
1928 le16_to_cpu(udev->descriptor.idVendor),
1929 le16_to_cpu(udev->descriptor.idProduct));
1930 }
1931 #endif
1932
1933 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1934 if (!dev)
1935 return -ENOMEM;
1936 info = (struct usbtest_info *) id->driver_info;
1937 dev->info = info;
1938 mutex_init(&dev->lock);
1939
1940 dev->intf = intf;
1941
1942 /* cacheline-aligned scratch for i/o */
1943 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
1944 if (dev->buf == NULL) {
1945 kfree(dev);
1946 return -ENOMEM;
1947 }
1948
1949 /* NOTE this doesn't yet test the handful of difference that are
1950 * visible with high speed interrupts: bigger maxpacket (1K) and
1951 * "high bandwidth" modes (up to 3 packets/uframe).
1952 */
1953 rtest = wtest = "";
1954 irtest = iwtest = "";
1955 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1956 if (info->ep_in) {
1957 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
1958 rtest = " intr-in";
1959 }
1960 if (info->ep_out) {
1961 dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
1962 wtest = " intr-out";
1963 }
1964 } else {
1965 if (info->autoconf) {
1966 int status;
1967
1968 status = get_endpoints(dev, intf);
1969 if (status < 0) {
1970 WARNING(dev, "couldn't get endpoints, %d\n",
1971 status);
1972 return status;
1973 }
1974 /* may find bulk or ISO pipes */
1975 } else {
1976 if (info->ep_in)
1977 dev->in_pipe = usb_rcvbulkpipe(udev,
1978 info->ep_in);
1979 if (info->ep_out)
1980 dev->out_pipe = usb_sndbulkpipe(udev,
1981 info->ep_out);
1982 }
1983 if (dev->in_pipe)
1984 rtest = " bulk-in";
1985 if (dev->out_pipe)
1986 wtest = " bulk-out";
1987 if (dev->in_iso_pipe)
1988 irtest = " iso-in";
1989 if (dev->out_iso_pipe)
1990 iwtest = " iso-out";
1991 }
1992
1993 usb_set_intfdata(intf, dev);
1994 dev_info(&intf->dev, "%s\n", info->name);
1995 dev_info(&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1996 ({ char *tmp;
1997 switch (udev->speed) {
1998 case USB_SPEED_LOW:
1999 tmp = "low";
2000 break;
2001 case USB_SPEED_FULL:
2002 tmp = "full";
2003 break;
2004 case USB_SPEED_HIGH:
2005 tmp = "high";
2006 break;
2007 default:
2008 tmp = "unknown";
2009 break;
2010 }; tmp; }),
2011 info->ctrl_out ? " in/out" : "",
2012 rtest, wtest,
2013 irtest, iwtest,
2014 info->alt >= 0 ? " (+alt)" : "");
2015 return 0;
2016 }
2017
2018 static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
2019 {
2020 return 0;
2021 }
2022
2023 static int usbtest_resume(struct usb_interface *intf)
2024 {
2025 return 0;
2026 }
2027
2028
2029 static void usbtest_disconnect(struct usb_interface *intf)
2030 {
2031 struct usbtest_dev *dev = usb_get_intfdata(intf);
2032
2033 usb_set_intfdata(intf, NULL);
2034 dev_dbg(&intf->dev, "disconnect\n");
2035 kfree(dev);
2036 }
2037
2038 /* Basic testing only needs a device that can source or sink bulk traffic.
2039 * Any device can test control transfers (default with GENERIC binding).
2040 *
2041 * Several entries work with the default EP0 implementation that's built
2042 * into EZ-USB chips. There's a default vendor ID which can be overridden
2043 * by (very) small config EEPROMS, but otherwise all these devices act
2044 * identically until firmware is loaded: only EP0 works. It turns out
2045 * to be easy to make other endpoints work, without modifying that EP0
2046 * behavior. For now, we expect that kind of firmware.
2047 */
2048
2049 /* an21xx or fx versions of ez-usb */
2050 static struct usbtest_info ez1_info = {
2051 .name = "EZ-USB device",
2052 .ep_in = 2,
2053 .ep_out = 2,
2054 .alt = 1,
2055 };
2056
2057 /* fx2 version of ez-usb */
2058 static struct usbtest_info ez2_info = {
2059 .name = "FX2 device",
2060 .ep_in = 6,
2061 .ep_out = 2,
2062 .alt = 1,
2063 };
2064
2065 /* ezusb family device with dedicated usb test firmware,
2066 */
2067 static struct usbtest_info fw_info = {
2068 .name = "usb test device",
2069 .ep_in = 2,
2070 .ep_out = 2,
2071 .alt = 1,
2072 .autoconf = 1, /* iso and ctrl_out need autoconf */
2073 .ctrl_out = 1,
2074 .iso = 1, /* iso_ep's are #8 in/out */
2075 };
2076
2077 /* peripheral running Linux and 'zero.c' test firmware, or
2078 * its user-mode cousin. different versions of this use
2079 * different hardware with the same vendor/product codes.
2080 * host side MUST rely on the endpoint descriptors.
2081 */
2082 static struct usbtest_info gz_info = {
2083 .name = "Linux gadget zero",
2084 .autoconf = 1,
2085 .ctrl_out = 1,
2086 .alt = 0,
2087 };
2088
2089 static struct usbtest_info um_info = {
2090 .name = "Linux user mode test driver",
2091 .autoconf = 1,
2092 .alt = -1,
2093 };
2094
2095 static struct usbtest_info um2_info = {
2096 .name = "Linux user mode ISO test driver",
2097 .autoconf = 1,
2098 .iso = 1,
2099 .alt = -1,
2100 };
2101
2102 #ifdef IBOT2
2103 /* this is a nice source of high speed bulk data;
2104 * uses an FX2, with firmware provided in the device
2105 */
2106 static struct usbtest_info ibot2_info = {
2107 .name = "iBOT2 webcam",
2108 .ep_in = 2,
2109 .alt = -1,
2110 };
2111 #endif
2112
2113 #ifdef GENERIC
2114 /* we can use any device to test control traffic */
2115 static struct usbtest_info generic_info = {
2116 .name = "Generic USB device",
2117 .alt = -1,
2118 };
2119 #endif
2120
2121
2122 static const struct usb_device_id id_table[] = {
2123
2124 /*-------------------------------------------------------------*/
2125
2126 /* EZ-USB devices which download firmware to replace (or in our
2127 * case augment) the default device implementation.
2128 */
2129
2130 /* generic EZ-USB FX controller */
2131 { USB_DEVICE(0x0547, 0x2235),
2132 .driver_info = (unsigned long) &ez1_info,
2133 },
2134
2135 /* CY3671 development board with EZ-USB FX */
2136 { USB_DEVICE(0x0547, 0x0080),
2137 .driver_info = (unsigned long) &ez1_info,
2138 },
2139
2140 /* generic EZ-USB FX2 controller (or development board) */
2141 { USB_DEVICE(0x04b4, 0x8613),
2142 .driver_info = (unsigned long) &ez2_info,
2143 },
2144
2145 /* re-enumerated usb test device firmware */
2146 { USB_DEVICE(0xfff0, 0xfff0),
2147 .driver_info = (unsigned long) &fw_info,
2148 },
2149
2150 /* "Gadget Zero" firmware runs under Linux */
2151 { USB_DEVICE(0x0525, 0xa4a0),
2152 .driver_info = (unsigned long) &gz_info,
2153 },
2154
2155 /* so does a user-mode variant */
2156 { USB_DEVICE(0x0525, 0xa4a4),
2157 .driver_info = (unsigned long) &um_info,
2158 },
2159
2160 /* ... and a user-mode variant that talks iso */
2161 { USB_DEVICE(0x0525, 0xa4a3),
2162 .driver_info = (unsigned long) &um2_info,
2163 },
2164
2165 #ifdef KEYSPAN_19Qi
2166 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2167 /* this does not coexist with the real Keyspan 19qi driver! */
2168 { USB_DEVICE(0x06cd, 0x010b),
2169 .driver_info = (unsigned long) &ez1_info,
2170 },
2171 #endif
2172
2173 /*-------------------------------------------------------------*/
2174
2175 #ifdef IBOT2
2176 /* iBOT2 makes a nice source of high speed bulk-in data */
2177 /* this does not coexist with a real iBOT2 driver! */
2178 { USB_DEVICE(0x0b62, 0x0059),
2179 .driver_info = (unsigned long) &ibot2_info,
2180 },
2181 #endif
2182
2183 /*-------------------------------------------------------------*/
2184
2185 #ifdef GENERIC
2186 /* module params can specify devices to use for control tests */
2187 { .driver_info = (unsigned long) &generic_info, },
2188 #endif
2189
2190 /*-------------------------------------------------------------*/
2191
2192 { }
2193 };
2194 MODULE_DEVICE_TABLE(usb, id_table);
2195
2196 static struct usb_driver usbtest_driver = {
2197 .name = "usbtest",
2198 .id_table = id_table,
2199 .probe = usbtest_probe,
2200 .unlocked_ioctl = usbtest_ioctl,
2201 .disconnect = usbtest_disconnect,
2202 .suspend = usbtest_suspend,
2203 .resume = usbtest_resume,
2204 };
2205
2206 /*-------------------------------------------------------------------------*/
2207
2208 static int __init usbtest_init(void)
2209 {
2210 #ifdef GENERIC
2211 if (vendor)
2212 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2213 #endif
2214 return usb_register(&usbtest_driver);
2215 }
2216 module_init(usbtest_init);
2217
2218 static void __exit usbtest_exit(void)
2219 {
2220 usb_deregister(&usbtest_driver);
2221 }
2222 module_exit(usbtest_exit);
2223
2224 MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2225 MODULE_LICENSE("GPL");
2226
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree