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USB: usbtest: avoid to free coherent buffer in atomic context
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / misc / usbtest.c
blob55f654f3ea04b9a03ab6744e54ccf46cd18b8326
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 //
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 mutex lock;
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 ERROR(tdev, fmt, args...) \
83 dev_err(&(tdev)->intf->dev , fmt , ## args)
84 #define WARNING(tdev, fmt, args...) \
85 dev_warn(&(tdev)->intf->dev , fmt , ## args)
86
87 /*-------------------------------------------------------------------------*/
88
89 static int
90 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
91 {
92 int tmp;
93 struct usb_host_interface *alt;
94 struct usb_host_endpoint *in, *out;
95 struct usb_host_endpoint *iso_in, *iso_out;
96 struct usb_device *udev;
97
98 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
99 unsigned ep;
100
101 in = out = NULL;
102 iso_in = iso_out = NULL;
103 alt = intf->altsetting + tmp;
104
105 /* take the first altsetting with in-bulk + out-bulk;
106 * ignore other endpoints and altsetttings.
107 */
108 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
109 struct usb_host_endpoint *e;
110
111 e = alt->endpoint + ep;
112 switch (e->desc.bmAttributes) {
113 case USB_ENDPOINT_XFER_BULK:
114 break;
115 case USB_ENDPOINT_XFER_ISOC:
116 if (dev->info->iso)
117 goto try_iso;
118 // FALLTHROUGH
119 default:
120 continue;
121 }
122 if (usb_endpoint_dir_in(&e->desc)) {
123 if (!in)
124 in = e;
125 } else {
126 if (!out)
127 out = e;
128 }
129 continue;
130 try_iso:
131 if (usb_endpoint_dir_in(&e->desc)) {
132 if (!iso_in)
133 iso_in = e;
134 } else {
135 if (!iso_out)
136 iso_out = e;
137 }
138 }
139 if ((in && out) || (iso_in && iso_out))
140 goto found;
141 }
142 return -EINVAL;
143
144 found:
145 udev = testdev_to_usbdev (dev);
146 if (alt->desc.bAlternateSetting != 0) {
147 tmp = usb_set_interface (udev,
148 alt->desc.bInterfaceNumber,
149 alt->desc.bAlternateSetting);
150 if (tmp < 0)
151 return tmp;
152 }
153
154 if (in) {
155 dev->in_pipe = usb_rcvbulkpipe (udev,
156 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
157 dev->out_pipe = usb_sndbulkpipe (udev,
158 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
159 }
160 if (iso_in) {
161 dev->iso_in = &iso_in->desc;
162 dev->in_iso_pipe = usb_rcvisocpipe (udev,
163 iso_in->desc.bEndpointAddress
164 & USB_ENDPOINT_NUMBER_MASK);
165 dev->iso_out = &iso_out->desc;
166 dev->out_iso_pipe = usb_sndisocpipe (udev,
167 iso_out->desc.bEndpointAddress
168 & USB_ENDPOINT_NUMBER_MASK);
169 }
170 return 0;
171 }
172
173 /*-------------------------------------------------------------------------*/
174
175 /* Support for testing basic non-queued I/O streams.
176 *
177 * These just package urbs as requests that can be easily canceled.
178 * Each urb's data buffer is dynamically allocated; callers can fill
179 * them with non-zero test data (or test for it) when appropriate.
180 */
181
182 static void simple_callback (struct urb *urb)
183 {
184 complete(urb->context);
185 }
186
187 static struct urb *simple_alloc_urb (
188 struct usb_device *udev,
189 int pipe,
190 unsigned long bytes
191 )
192 {
193 struct urb *urb;
194
195 urb = usb_alloc_urb (0, GFP_KERNEL);
196 if (!urb)
197 return urb;
198 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
199 urb->interval = (udev->speed == USB_SPEED_HIGH)
200 ? (INTERRUPT_RATE << 3)
201 : INTERRUPT_RATE;
202 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
203 if (usb_pipein (pipe))
204 urb->transfer_flags |= URB_SHORT_NOT_OK;
205 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
206 &urb->transfer_dma);
207 if (!urb->transfer_buffer) {
208 usb_free_urb (urb);
209 urb = NULL;
210 } else
211 memset (urb->transfer_buffer, 0, bytes);
212 return urb;
213 }
214
215 static unsigned pattern = 0;
216 static unsigned mod_pattern;
217 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
218 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
219
220 static inline void simple_fill_buf (struct urb *urb)
221 {
222 unsigned i;
223 u8 *buf = urb->transfer_buffer;
224 unsigned len = urb->transfer_buffer_length;
225
226 switch (pattern) {
227 default:
228 // FALLTHROUGH
229 case 0:
230 memset (buf, 0, len);
231 break;
232 case 1: /* mod63 */
233 for (i = 0; i < len; i++)
234 *buf++ = (u8) (i % 63);
235 break;
236 }
237 }
238
239 static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
240 {
241 unsigned i;
242 u8 expected;
243 u8 *buf = urb->transfer_buffer;
244 unsigned len = urb->actual_length;
245
246 for (i = 0; i < len; i++, buf++) {
247 switch (pattern) {
248 /* all-zeroes has no synchronization issues */
249 case 0:
250 expected = 0;
251 break;
252 /* mod63 stays in sync with short-terminated transfers,
253 * or otherwise when host and gadget agree on how large
254 * each usb transfer request should be. resync is done
255 * with set_interface or set_config.
256 */
257 case 1: /* mod63 */
258 expected = i % 63;
259 break;
260 /* always fail unsupported patterns */
261 default:
262 expected = !*buf;
263 break;
264 }
265 if (*buf == expected)
266 continue;
267 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
268 return -EINVAL;
269 }
270 return 0;
271 }
272
273 static void simple_free_urb (struct urb *urb)
274 {
275 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
276 urb->transfer_buffer, urb->transfer_dma);
277 usb_free_urb (urb);
278 }
279
280 static int simple_io (
281 struct usbtest_dev *tdev,
282 struct urb *urb,
283 int iterations,
284 int vary,
285 int expected,
286 const char *label
287 )
288 {
289 struct usb_device *udev = urb->dev;
290 int max = urb->transfer_buffer_length;
291 struct completion completion;
292 int retval = 0;
293
294 urb->context = &completion;
295 while (retval == 0 && iterations-- > 0) {
296 init_completion (&completion);
297 if (usb_pipeout (urb->pipe))
298 simple_fill_buf (urb);
299 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0)
300 break;
301
302 /* NOTE: no timeouts; can't be broken out of by interrupt */
303 wait_for_completion (&completion);
304 retval = urb->status;
305 urb->dev = udev;
306 if (retval == 0 && usb_pipein (urb->pipe))
307 retval = simple_check_buf(tdev, urb);
308
309 if (vary) {
310 int len = urb->transfer_buffer_length;
311
312 len += vary;
313 len %= max;
314 if (len == 0)
315 len = (vary < max) ? vary : max;
316 urb->transfer_buffer_length = len;
317 }
318
319 /* FIXME if endpoint halted, clear halt (and log) */
320 }
321 urb->transfer_buffer_length = max;
322
323 if (expected != retval)
324 dev_err(&udev->dev,
325 "%s failed, iterations left %d, status %d (not %d)\n",
326 label, iterations, retval, expected);
327 return retval;
328 }
329
330
331 /*-------------------------------------------------------------------------*/
332
333 /* We use scatterlist primitives to test queued I/O.
334 * Yes, this also tests the scatterlist primitives.
335 */
336
337 static void free_sglist (struct scatterlist *sg, int nents)
338 {
339 unsigned i;
340
341 if (!sg)
342 return;
343 for (i = 0; i < nents; i++) {
344 if (!sg_page(&sg[i]))
345 continue;
346 kfree (sg_virt(&sg[i]));
347 }
348 kfree (sg);
349 }
350
351 static struct scatterlist *
352 alloc_sglist (int nents, int max, int vary)
353 {
354 struct scatterlist *sg;
355 unsigned i;
356 unsigned size = max;
357
358 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL);
359 if (!sg)
360 return NULL;
361 sg_init_table(sg, nents);
362
363 for (i = 0; i < nents; i++) {
364 char *buf;
365 unsigned j;
366
367 buf = kzalloc (size, GFP_KERNEL);
368 if (!buf) {
369 free_sglist (sg, i);
370 return NULL;
371 }
372
373 /* kmalloc pages are always physically contiguous! */
374 sg_set_buf(&sg[i], buf, size);
375
376 switch (pattern) {
377 case 0:
378 /* already zeroed */
379 break;
380 case 1:
381 for (j = 0; j < size; j++)
382 *buf++ = (u8) (j % 63);
383 break;
384 }
385
386 if (vary) {
387 size += vary;
388 size %= max;
389 if (size == 0)
390 size = (vary < max) ? vary : max;
391 }
392 }
393
394 return sg;
395 }
396
397 static int perform_sglist (
398 struct usbtest_dev *tdev,
399 unsigned iterations,
400 int pipe,
401 struct usb_sg_request *req,
402 struct scatterlist *sg,
403 int nents
404 )
405 {
406 struct usb_device *udev = testdev_to_usbdev(tdev);
407 int retval = 0;
408
409 while (retval == 0 && iterations-- > 0) {
410 retval = usb_sg_init (req, udev, pipe,
411 (udev->speed == USB_SPEED_HIGH)
412 ? (INTERRUPT_RATE << 3)
413 : INTERRUPT_RATE,
414 sg, nents, 0, GFP_KERNEL);
415
416 if (retval)
417 break;
418 usb_sg_wait (req);
419 retval = req->status;
420
421 /* FIXME check resulting data pattern */
422
423 /* FIXME if endpoint halted, clear halt (and log) */
424 }
425
426 // FIXME for unlink or fault handling tests, don't report
427 // failure if retval is as we expected ...
428
429 if (retval)
430 ERROR(tdev, "perform_sglist failed, "
431 "iterations left %d, status %d\n",
432 iterations, retval);
433 return retval;
434 }
435
436
437 /*-------------------------------------------------------------------------*/
438
439 /* unqueued control message testing
440 *
441 * there's a nice set of device functional requirements in chapter 9 of the
442 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
443 * special test firmware.
444 *
445 * we know the device is configured (or suspended) by the time it's visible
446 * through usbfs. we can't change that, so we won't test enumeration (which
447 * worked 'well enough' to get here, this time), power management (ditto),
448 * or remote wakeup (which needs human interaction).
449 */
450
451 static unsigned realworld = 1;
452 module_param (realworld, uint, 0);
453 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
454
455 static int get_altsetting (struct usbtest_dev *dev)
456 {
457 struct usb_interface *iface = dev->intf;
458 struct usb_device *udev = interface_to_usbdev (iface);
459 int retval;
460
461 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
462 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
463 0, iface->altsetting [0].desc.bInterfaceNumber,
464 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
465 switch (retval) {
466 case 1:
467 return dev->buf [0];
468 case 0:
469 retval = -ERANGE;
470 // FALLTHROUGH
471 default:
472 return retval;
473 }
474 }
475
476 static int set_altsetting (struct usbtest_dev *dev, int alternate)
477 {
478 struct usb_interface *iface = dev->intf;
479 struct usb_device *udev;
480
481 if (alternate < 0 || alternate >= 256)
482 return -EINVAL;
483
484 udev = interface_to_usbdev (iface);
485 return usb_set_interface (udev,
486 iface->altsetting [0].desc.bInterfaceNumber,
487 alternate);
488 }
489
490 static int is_good_config(struct usbtest_dev *tdev, int len)
491 {
492 struct usb_config_descriptor *config;
493
494 if (len < sizeof *config)
495 return 0;
496 config = (struct usb_config_descriptor *) tdev->buf;
497
498 switch (config->bDescriptorType) {
499 case USB_DT_CONFIG:
500 case USB_DT_OTHER_SPEED_CONFIG:
501 if (config->bLength != 9) {
502 ERROR(tdev, "bogus config descriptor length\n");
503 return 0;
504 }
505 /* this bit 'must be 1' but often isn't */
506 if (!realworld && !(config->bmAttributes & 0x80)) {
507 ERROR(tdev, "high bit of config attributes not set\n");
508 return 0;
509 }
510 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
511 ERROR(tdev, "reserved config bits set\n");
512 return 0;
513 }
514 break;
515 default:
516 return 0;
517 }
518
519 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
520 return 1;
521 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
522 return 1;
523 ERROR(tdev, "bogus config descriptor read size\n");
524 return 0;
525 }
526
527 /* sanity test for standard requests working with usb_control_mesg() and some
528 * of the utility functions which use it.
529 *
530 * this doesn't test how endpoint halts behave or data toggles get set, since
531 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
532 * halt or toggle). toggle testing is impractical without support from hcds.
533 *
534 * this avoids failing devices linux would normally work with, by not testing
535 * config/altsetting operations for devices that only support their defaults.
536 * such devices rarely support those needless operations.
537 *
538 * NOTE that since this is a sanity test, it's not examining boundary cases
539 * to see if usbcore, hcd, and device all behave right. such testing would
540 * involve varied read sizes and other operation sequences.
541 */
542 static int ch9_postconfig (struct usbtest_dev *dev)
543 {
544 struct usb_interface *iface = dev->intf;
545 struct usb_device *udev = interface_to_usbdev (iface);
546 int i, alt, retval;
547
548 /* [9.2.3] if there's more than one altsetting, we need to be able to
549 * set and get each one. mostly trusts the descriptors from usbcore.
550 */
551 for (i = 0; i < iface->num_altsetting; i++) {
552
553 /* 9.2.3 constrains the range here */
554 alt = iface->altsetting [i].desc.bAlternateSetting;
555 if (alt < 0 || alt >= iface->num_altsetting) {
556 dev_err(&iface->dev,
557 "invalid alt [%d].bAltSetting = %d\n",
558 i, alt);
559 }
560
561 /* [real world] get/set unimplemented if there's only one */
562 if (realworld && iface->num_altsetting == 1)
563 continue;
564
565 /* [9.4.10] set_interface */
566 retval = set_altsetting (dev, alt);
567 if (retval) {
568 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
569 alt, retval);
570 return retval;
571 }
572
573 /* [9.4.4] get_interface always works */
574 retval = get_altsetting (dev);
575 if (retval != alt) {
576 dev_err(&iface->dev, "get alt should be %d, was %d\n",
577 alt, retval);
578 return (retval < 0) ? retval : -EDOM;
579 }
580
581 }
582
583 /* [real world] get_config unimplemented if there's only one */
584 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
585 int expected = udev->actconfig->desc.bConfigurationValue;
586
587 /* [9.4.2] get_configuration always works
588 * ... although some cheap devices (like one TI Hub I've got)
589 * won't return config descriptors except before set_config.
590 */
591 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
592 USB_REQ_GET_CONFIGURATION,
593 USB_DIR_IN | USB_RECIP_DEVICE,
594 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
595 if (retval != 1 || dev->buf [0] != expected) {
596 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
597 retval, dev->buf[0], expected);
598 return (retval < 0) ? retval : -EDOM;
599 }
600 }
601
602 /* there's always [9.4.3] a device descriptor [9.6.1] */
603 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
604 dev->buf, sizeof udev->descriptor);
605 if (retval != sizeof udev->descriptor) {
606 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
607 return (retval < 0) ? retval : -EDOM;
608 }
609
610 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
611 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
612 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
613 dev->buf, TBUF_SIZE);
614 if (!is_good_config(dev, retval)) {
615 dev_err(&iface->dev,
616 "config [%d] descriptor --> %d\n",
617 i, retval);
618 return (retval < 0) ? retval : -EDOM;
619 }
620
621 // FIXME cross-checking udev->config[i] to make sure usbcore
622 // parsed it right (etc) would be good testing paranoia
623 }
624
625 /* and sometimes [9.2.6.6] speed dependent descriptors */
626 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
627 struct usb_qualifier_descriptor *d = NULL;
628
629 /* device qualifier [9.6.2] */
630 retval = usb_get_descriptor (udev,
631 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
632 sizeof (struct usb_qualifier_descriptor));
633 if (retval == -EPIPE) {
634 if (udev->speed == USB_SPEED_HIGH) {
635 dev_err(&iface->dev,
636 "hs dev qualifier --> %d\n",
637 retval);
638 return (retval < 0) ? retval : -EDOM;
639 }
640 /* usb2.0 but not high-speed capable; fine */
641 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
642 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
643 return (retval < 0) ? retval : -EDOM;
644 } else
645 d = (struct usb_qualifier_descriptor *) dev->buf;
646
647 /* might not have [9.6.2] any other-speed configs [9.6.4] */
648 if (d) {
649 unsigned max = d->bNumConfigurations;
650 for (i = 0; i < max; i++) {
651 retval = usb_get_descriptor (udev,
652 USB_DT_OTHER_SPEED_CONFIG, i,
653 dev->buf, TBUF_SIZE);
654 if (!is_good_config(dev, retval)) {
655 dev_err(&iface->dev,
656 "other speed config --> %d\n",
657 retval);
658 return (retval < 0) ? retval : -EDOM;
659 }
660 }
661 }
662 }
663 // FIXME fetch strings from at least the device descriptor
664
665 /* [9.4.5] get_status always works */
666 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
667 if (retval != 2) {
668 dev_err(&iface->dev, "get dev status --> %d\n", retval);
669 return (retval < 0) ? retval : -EDOM;
670 }
671
672 // FIXME configuration.bmAttributes says if we could try to set/clear
673 // the device's remote wakeup feature ... if we can, test that here
674
675 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
676 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
677 if (retval != 2) {
678 dev_err(&iface->dev, "get interface status --> %d\n", retval);
679 return (retval < 0) ? retval : -EDOM;
680 }
681 // FIXME get status for each endpoint in the interface
682
683 return 0;
684 }
685
686 /*-------------------------------------------------------------------------*/
687
688 /* use ch9 requests to test whether:
689 * (a) queues work for control, keeping N subtests queued and
690 * active (auto-resubmit) for M loops through the queue.
691 * (b) protocol stalls (control-only) will autorecover.
692 * it's not like bulk/intr; no halt clearing.
693 * (c) short control reads are reported and handled.
694 * (d) queues are always processed in-order
695 */
696
697 struct ctrl_ctx {
698 spinlock_t lock;
699 struct usbtest_dev *dev;
700 struct completion complete;
701 unsigned count;
702 unsigned pending;
703 int status;
704 struct urb **urb;
705 struct usbtest_param *param;
706 int last;
707 };
708
709 #define NUM_SUBCASES 15 /* how many test subcases here? */
710
711 struct subcase {
712 struct usb_ctrlrequest setup;
713 int number;
714 int expected;
715 };
716
717 static void ctrl_complete (struct urb *urb)
718 {
719 struct ctrl_ctx *ctx = urb->context;
720 struct usb_ctrlrequest *reqp;
721 struct subcase *subcase;
722 int status = urb->status;
723
724 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
725 subcase = container_of (reqp, struct subcase, setup);
726
727 spin_lock (&ctx->lock);
728 ctx->count--;
729 ctx->pending--;
730
731 /* queue must transfer and complete in fifo order, unless
732 * usb_unlink_urb() is used to unlink something not at the
733 * physical queue head (not tested).
734 */
735 if (subcase->number > 0) {
736 if ((subcase->number - ctx->last) != 1) {
737 ERROR(ctx->dev,
738 "subcase %d completed out of order, last %d\n",
739 subcase->number, ctx->last);
740 status = -EDOM;
741 ctx->last = subcase->number;
742 goto error;
743 }
744 }
745 ctx->last = subcase->number;
746
747 /* succeed or fault in only one way? */
748 if (status == subcase->expected)
749 status = 0;
750
751 /* async unlink for cleanup? */
752 else if (status != -ECONNRESET) {
753
754 /* some faults are allowed, not required */
755 if (subcase->expected > 0 && (
756 ((status == -subcase->expected /* happened */
757 || status == 0)))) /* didn't */
758 status = 0;
759 /* sometimes more than one fault is allowed */
760 else if (subcase->number == 12 && status == -EPIPE)
761 status = 0;
762 else
763 ERROR(ctx->dev, "subtest %d error, status %d\n",
764 subcase->number, status);
765 }
766
767 /* unexpected status codes mean errors; ideally, in hardware */
768 if (status) {
769 error:
770 if (ctx->status == 0) {
771 int i;
772
773 ctx->status = status;
774 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
775 "%d left, subcase %d, len %d/%d\n",
776 reqp->bRequestType, reqp->bRequest,
777 status, ctx->count, subcase->number,
778 urb->actual_length,
779 urb->transfer_buffer_length);
780
781 /* FIXME this "unlink everything" exit route should
782 * be a separate test case.
783 */
784
785 /* unlink whatever's still pending */
786 for (i = 1; i < ctx->param->sglen; i++) {
787 struct urb *u = ctx->urb [
788 (i + subcase->number)
789 % ctx->param->sglen];
790
791 if (u == urb || !u->dev)
792 continue;
793 spin_unlock(&ctx->lock);
794 status = usb_unlink_urb (u);
795 spin_lock(&ctx->lock);
796 switch (status) {
797 case -EINPROGRESS:
798 case -EBUSY:
799 case -EIDRM:
800 continue;
801 default:
802 ERROR(ctx->dev, "urb unlink --> %d\n",
803 status);
804 }
805 }
806 status = ctx->status;
807 }
808 }
809
810 /* resubmit if we need to, else mark this as done */
811 if ((status == 0) && (ctx->pending < ctx->count)) {
812 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) {
813 ERROR(ctx->dev,
814 "can't resubmit ctrl %02x.%02x, err %d\n",
815 reqp->bRequestType, reqp->bRequest, status);
816 urb->dev = NULL;
817 } else
818 ctx->pending++;
819 } else
820 urb->dev = NULL;
821
822 /* signal completion when nothing's queued */
823 if (ctx->pending == 0)
824 complete (&ctx->complete);
825 spin_unlock (&ctx->lock);
826 }
827
828 static int
829 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
830 {
831 struct usb_device *udev = testdev_to_usbdev (dev);
832 struct urb **urb;
833 struct ctrl_ctx context;
834 int i;
835
836 spin_lock_init (&context.lock);
837 context.dev = dev;
838 init_completion (&context.complete);
839 context.count = param->sglen * param->iterations;
840 context.pending = 0;
841 context.status = -ENOMEM;
842 context.param = param;
843 context.last = -1;
844
845 /* allocate and init the urbs we'll queue.
846 * as with bulk/intr sglists, sglen is the queue depth; it also
847 * controls which subtests run (more tests than sglen) or rerun.
848 */
849 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
850 if (!urb)
851 return -ENOMEM;
852 for (i = 0; i < param->sglen; i++) {
853 int pipe = usb_rcvctrlpipe (udev, 0);
854 unsigned len;
855 struct urb *u;
856 struct usb_ctrlrequest req;
857 struct subcase *reqp;
858
859 /* sign of this variable means:
860 * -: tested code must return this (negative) error code
861 * +: tested code may return this (negative too) error code
862 */
863 int expected = 0;
864
865 /* requests here are mostly expected to succeed on any
866 * device, but some are chosen to trigger protocol stalls
867 * or short reads.
868 */
869 memset (&req, 0, sizeof req);
870 req.bRequest = USB_REQ_GET_DESCRIPTOR;
871 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
872
873 switch (i % NUM_SUBCASES) {
874 case 0: // get device descriptor
875 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
876 len = sizeof (struct usb_device_descriptor);
877 break;
878 case 1: // get first config descriptor (only)
879 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
880 len = sizeof (struct usb_config_descriptor);
881 break;
882 case 2: // get altsetting (OFTEN STALLS)
883 req.bRequest = USB_REQ_GET_INTERFACE;
884 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
885 // index = 0 means first interface
886 len = 1;
887 expected = EPIPE;
888 break;
889 case 3: // get interface status
890 req.bRequest = USB_REQ_GET_STATUS;
891 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
892 // interface 0
893 len = 2;
894 break;
895 case 4: // get device status
896 req.bRequest = USB_REQ_GET_STATUS;
897 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
898 len = 2;
899 break;
900 case 5: // get device qualifier (MAY STALL)
901 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
902 len = sizeof (struct usb_qualifier_descriptor);
903 if (udev->speed != USB_SPEED_HIGH)
904 expected = EPIPE;
905 break;
906 case 6: // get first config descriptor, plus interface
907 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
908 len = sizeof (struct usb_config_descriptor);
909 len += sizeof (struct usb_interface_descriptor);
910 break;
911 case 7: // get interface descriptor (ALWAYS STALLS)
912 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
913 // interface == 0
914 len = sizeof (struct usb_interface_descriptor);
915 expected = -EPIPE;
916 break;
917 // NOTE: two consecutive stalls in the queue here.
918 // that tests fault recovery a bit more aggressively.
919 case 8: // clear endpoint halt (MAY STALL)
920 req.bRequest = USB_REQ_CLEAR_FEATURE;
921 req.bRequestType = USB_RECIP_ENDPOINT;
922 // wValue 0 == ep halt
923 // wIndex 0 == ep0 (shouldn't halt!)
924 len = 0;
925 pipe = usb_sndctrlpipe (udev, 0);
926 expected = EPIPE;
927 break;
928 case 9: // get endpoint status
929 req.bRequest = USB_REQ_GET_STATUS;
930 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
931 // endpoint 0
932 len = 2;
933 break;
934 case 10: // trigger short read (EREMOTEIO)
935 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
936 len = 1024;
937 expected = -EREMOTEIO;
938 break;
939 // NOTE: two consecutive _different_ faults in the queue.
940 case 11: // get endpoint descriptor (ALWAYS STALLS)
941 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
942 // endpoint == 0
943 len = sizeof (struct usb_interface_descriptor);
944 expected = EPIPE;
945 break;
946 // NOTE: sometimes even a third fault in the queue!
947 case 12: // get string 0 descriptor (MAY STALL)
948 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
949 // string == 0, for language IDs
950 len = sizeof (struct usb_interface_descriptor);
951 // may succeed when > 4 languages
952 expected = EREMOTEIO; // or EPIPE, if no strings
953 break;
954 case 13: // short read, resembling case 10
955 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
956 // last data packet "should" be DATA1, not DATA0
957 len = 1024 - udev->descriptor.bMaxPacketSize0;
958 expected = -EREMOTEIO;
959 break;
960 case 14: // short read; try to fill the last packet
961 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
962 /* device descriptor size == 18 bytes */
963 len = udev->descriptor.bMaxPacketSize0;
964 switch (len) {
965 case 8: len = 24; break;
966 case 16: len = 32; break;
967 }
968 expected = -EREMOTEIO;
969 break;
970 default:
971 ERROR(dev, "bogus number of ctrl queue testcases!\n");
972 context.status = -EINVAL;
973 goto cleanup;
974 }
975 req.wLength = cpu_to_le16 (len);
976 urb [i] = u = simple_alloc_urb (udev, pipe, len);
977 if (!u)
978 goto cleanup;
979
980 reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL,
981 &u->setup_dma);
982 if (!reqp)
983 goto cleanup;
984 reqp->setup = req;
985 reqp->number = i % NUM_SUBCASES;
986 reqp->expected = expected;
987 u->setup_packet = (char *) &reqp->setup;
988 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
989
990 u->context = &context;
991 u->complete = ctrl_complete;
992 }
993
994 /* queue the urbs */
995 context.urb = urb;
996 spin_lock_irq (&context.lock);
997 for (i = 0; i < param->sglen; i++) {
998 context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
999 if (context.status != 0) {
1000 ERROR(dev, "can't submit urb[%d], status %d\n",
1001 i, context.status);
1002 context.count = context.pending;
1003 break;
1004 }
1005 context.pending++;
1006 }
1007 spin_unlock_irq (&context.lock);
1008
1009 /* FIXME set timer and time out; provide a disconnect hook */
1010
1011 /* wait for the last one to complete */
1012 if (context.pending > 0)
1013 wait_for_completion (&context.complete);
1014
1015 cleanup:
1016 for (i = 0; i < param->sglen; i++) {
1017 if (!urb [i])
1018 continue;
1019 urb [i]->dev = udev;
1020 if (urb [i]->setup_packet)
1021 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1022 urb [i]->setup_packet,
1023 urb [i]->setup_dma);
1024 simple_free_urb (urb [i]);
1025 }
1026 kfree (urb);
1027 return context.status;
1028 }
1029 #undef NUM_SUBCASES
1030
1031
1032 /*-------------------------------------------------------------------------*/
1033
1034 static void unlink1_callback (struct urb *urb)
1035 {
1036 int status = urb->status;
1037
1038 // we "know" -EPIPE (stall) never happens
1039 if (!status)
1040 status = usb_submit_urb (urb, GFP_ATOMIC);
1041 if (status) {
1042 urb->status = status;
1043 complete(urb->context);
1044 }
1045 }
1046
1047 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1048 {
1049 struct urb *urb;
1050 struct completion completion;
1051 int retval = 0;
1052
1053 init_completion (&completion);
1054 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1055 if (!urb)
1056 return -ENOMEM;
1057 urb->context = &completion;
1058 urb->complete = unlink1_callback;
1059
1060 /* keep the endpoint busy. there are lots of hc/hcd-internal
1061 * states, and testing should get to all of them over time.
1062 *
1063 * FIXME want additional tests for when endpoint is STALLing
1064 * due to errors, or is just NAKing requests.
1065 */
1066 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) {
1067 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1068 return retval;
1069 }
1070
1071 /* unlinking that should always work. variable delay tests more
1072 * hcd states and code paths, even with little other system load.
1073 */
1074 msleep (jiffies % (2 * INTERRUPT_RATE));
1075 if (async) {
1076 while (!completion_done(&completion)) {
1077 retval = usb_unlink_urb(urb);
1078
1079 switch (retval) {
1080 case -EBUSY:
1081 case -EIDRM:
1082 /* we can't unlink urbs while they're completing
1083 * or if they've completed, and we haven't
1084 * resubmitted. "normal" drivers would prevent
1085 * resubmission, but since we're testing unlink
1086 * paths, we can't.
1087 */
1088 ERROR(dev, "unlink retry\n");
1089 continue;
1090 case 0:
1091 case -EINPROGRESS:
1092 break;
1093
1094 default:
1095 dev_err(&dev->intf->dev,
1096 "unlink fail %d\n", retval);
1097 return retval;
1098 }
1099
1100 break;
1101 }
1102 } else
1103 usb_kill_urb (urb);
1104
1105 wait_for_completion (&completion);
1106 retval = urb->status;
1107 simple_free_urb (urb);
1108
1109 if (async)
1110 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1111 else
1112 return (retval == -ENOENT || retval == -EPERM) ?
1113 0 : retval - 2000;
1114 }
1115
1116 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1117 {
1118 int retval = 0;
1119
1120 /* test sync and async paths */
1121 retval = unlink1 (dev, pipe, len, 1);
1122 if (!retval)
1123 retval = unlink1 (dev, pipe, len, 0);
1124 return retval;
1125 }
1126
1127 /*-------------------------------------------------------------------------*/
1128
1129 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1130 {
1131 int retval;
1132 u16 status;
1133
1134 /* shouldn't look or act halted */
1135 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1136 if (retval < 0) {
1137 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1138 ep, retval);
1139 return retval;
1140 }
1141 if (status != 0) {
1142 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1143 return -EINVAL;
1144 }
1145 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1146 if (retval != 0)
1147 return -EINVAL;
1148 return 0;
1149 }
1150
1151 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1152 {
1153 int retval;
1154 u16 status;
1155
1156 /* should look and act halted */
1157 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1158 if (retval < 0) {
1159 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1160 ep, retval);
1161 return retval;
1162 }
1163 le16_to_cpus(&status);
1164 if (status != 1) {
1165 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1166 return -EINVAL;
1167 }
1168 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1169 if (retval != -EPIPE)
1170 return -EINVAL;
1171 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1172 if (retval != -EPIPE)
1173 return -EINVAL;
1174 return 0;
1175 }
1176
1177 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1178 {
1179 int retval;
1180
1181 /* shouldn't look or act halted now */
1182 retval = verify_not_halted(tdev, ep, urb);
1183 if (retval < 0)
1184 return retval;
1185
1186 /* set halt (protocol test only), verify it worked */
1187 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1188 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1189 USB_ENDPOINT_HALT, ep,
1190 NULL, 0, USB_CTRL_SET_TIMEOUT);
1191 if (retval < 0) {
1192 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1193 return retval;
1194 }
1195 retval = verify_halted(tdev, ep, urb);
1196 if (retval < 0)
1197 return retval;
1198
1199 /* clear halt (tests API + protocol), verify it worked */
1200 retval = usb_clear_halt (urb->dev, urb->pipe);
1201 if (retval < 0) {
1202 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1203 return retval;
1204 }
1205 retval = verify_not_halted(tdev, ep, urb);
1206 if (retval < 0)
1207 return retval;
1208
1209 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1210
1211 return 0;
1212 }
1213
1214 static int halt_simple (struct usbtest_dev *dev)
1215 {
1216 int ep;
1217 int retval = 0;
1218 struct urb *urb;
1219
1220 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1221 if (urb == NULL)
1222 return -ENOMEM;
1223
1224 if (dev->in_pipe) {
1225 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1226 urb->pipe = dev->in_pipe;
1227 retval = test_halt(dev, ep, urb);
1228 if (retval < 0)
1229 goto done;
1230 }
1231
1232 if (dev->out_pipe) {
1233 ep = usb_pipeendpoint (dev->out_pipe);
1234 urb->pipe = dev->out_pipe;
1235 retval = test_halt(dev, ep, urb);
1236 }
1237 done:
1238 simple_free_urb (urb);
1239 return retval;
1240 }
1241
1242 /*-------------------------------------------------------------------------*/
1243
1244 /* Control OUT tests use the vendor control requests from Intel's
1245 * USB 2.0 compliance test device: write a buffer, read it back.
1246 *
1247 * Intel's spec only _requires_ that it work for one packet, which
1248 * is pretty weak. Some HCDs place limits here; most devices will
1249 * need to be able to handle more than one OUT data packet. We'll
1250 * try whatever we're told to try.
1251 */
1252 static int ctrl_out (struct usbtest_dev *dev,
1253 unsigned count, unsigned length, unsigned vary)
1254 {
1255 unsigned i, j, len;
1256 int retval;
1257 u8 *buf;
1258 char *what = "?";
1259 struct usb_device *udev;
1260
1261 if (length < 1 || length > 0xffff || vary >= length)
1262 return -EINVAL;
1263
1264 buf = kmalloc(length, GFP_KERNEL);
1265 if (!buf)
1266 return -ENOMEM;
1267
1268 udev = testdev_to_usbdev (dev);
1269 len = length;
1270 retval = 0;
1271
1272 /* NOTE: hardware might well act differently if we pushed it
1273 * with lots back-to-back queued requests.
1274 */
1275 for (i = 0; i < count; i++) {
1276 /* write patterned data */
1277 for (j = 0; j < len; j++)
1278 buf [j] = i + j;
1279 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1280 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1281 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1282 if (retval != len) {
1283 what = "write";
1284 if (retval >= 0) {
1285 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1286 retval, len);
1287 retval = -EBADMSG;
1288 }
1289 break;
1290 }
1291
1292 /* read it back -- assuming nothing intervened!! */
1293 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1294 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1295 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1296 if (retval != len) {
1297 what = "read";
1298 if (retval >= 0) {
1299 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1300 retval, len);
1301 retval = -EBADMSG;
1302 }
1303 break;
1304 }
1305
1306 /* fail if we can't verify */
1307 for (j = 0; j < len; j++) {
1308 if (buf [j] != (u8) (i + j)) {
1309 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1310 j, buf [j], (u8) i + j);
1311 retval = -EBADMSG;
1312 break;
1313 }
1314 }
1315 if (retval < 0) {
1316 what = "verify";
1317 break;
1318 }
1319
1320 len += vary;
1321
1322 /* [real world] the "zero bytes IN" case isn't really used.
1323 * hardware can easily trip up in this weird case, since its
1324 * status stage is IN, not OUT like other ep0in transfers.
1325 */
1326 if (len > length)
1327 len = realworld ? 1 : 0;
1328 }
1329
1330 if (retval < 0)
1331 ERROR (dev, "ctrl_out %s failed, code %d, count %d\n",
1332 what, retval, i);
1333
1334 kfree (buf);
1335 return retval;
1336 }
1337
1338 /*-------------------------------------------------------------------------*/
1339
1340 /* ISO tests ... mimics common usage
1341 * - buffer length is split into N packets (mostly maxpacket sized)
1342 * - multi-buffers according to sglen
1343 */
1344
1345 struct iso_context {
1346 unsigned count;
1347 unsigned pending;
1348 spinlock_t lock;
1349 struct completion done;
1350 int submit_error;
1351 unsigned long errors;
1352 unsigned long packet_count;
1353 struct usbtest_dev *dev;
1354 };
1355
1356 static void iso_callback (struct urb *urb)
1357 {
1358 struct iso_context *ctx = urb->context;
1359
1360 spin_lock(&ctx->lock);
1361 ctx->count--;
1362
1363 ctx->packet_count += urb->number_of_packets;
1364 if (urb->error_count > 0)
1365 ctx->errors += urb->error_count;
1366 else if (urb->status != 0)
1367 ctx->errors += urb->number_of_packets;
1368
1369 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1370 && !ctx->submit_error) {
1371 int status = usb_submit_urb (urb, GFP_ATOMIC);
1372 switch (status) {
1373 case 0:
1374 goto done;
1375 default:
1376 dev_err(&ctx->dev->intf->dev,
1377 "iso resubmit err %d\n",
1378 status);
1379 /* FALLTHROUGH */
1380 case -ENODEV: /* disconnected */
1381 case -ESHUTDOWN: /* endpoint disabled */
1382 ctx->submit_error = 1;
1383 break;
1384 }
1385 }
1386
1387 ctx->pending--;
1388 if (ctx->pending == 0) {
1389 if (ctx->errors)
1390 dev_err(&ctx->dev->intf->dev,
1391 "iso test, %lu errors out of %lu\n",
1392 ctx->errors, ctx->packet_count);
1393 complete (&ctx->done);
1394 }
1395 done:
1396 spin_unlock(&ctx->lock);
1397 }
1398
1399 static struct urb *iso_alloc_urb (
1400 struct usb_device *udev,
1401 int pipe,
1402 struct usb_endpoint_descriptor *desc,
1403 long bytes
1404 )
1405 {
1406 struct urb *urb;
1407 unsigned i, maxp, packets;
1408
1409 if (bytes < 0 || !desc)
1410 return NULL;
1411 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1412 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1413 packets = DIV_ROUND_UP(bytes, maxp);
1414
1415 urb = usb_alloc_urb (packets, GFP_KERNEL);
1416 if (!urb)
1417 return urb;
1418 urb->dev = udev;
1419 urb->pipe = pipe;
1420
1421 urb->number_of_packets = packets;
1422 urb->transfer_buffer_length = bytes;
1423 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
1424 &urb->transfer_dma);
1425 if (!urb->transfer_buffer) {
1426 usb_free_urb (urb);
1427 return NULL;
1428 }
1429 memset (urb->transfer_buffer, 0, bytes);
1430 for (i = 0; i < packets; i++) {
1431 /* here, only the last packet will be short */
1432 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1433 bytes -= urb->iso_frame_desc[i].length;
1434
1435 urb->iso_frame_desc[i].offset = maxp * i;
1436 }
1437
1438 urb->complete = iso_callback;
1439 // urb->context = SET BY CALLER
1440 urb->interval = 1 << (desc->bInterval - 1);
1441 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1442 return urb;
1443 }
1444
1445 static int
1446 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1447 int pipe, struct usb_endpoint_descriptor *desc)
1448 {
1449 struct iso_context context;
1450 struct usb_device *udev;
1451 unsigned i;
1452 unsigned long packets = 0;
1453 int status = 0;
1454 struct urb *urbs[10]; /* FIXME no limit */
1455
1456 if (param->sglen > 10)
1457 return -EDOM;
1458
1459 memset(&context, 0, sizeof context);
1460 context.count = param->iterations * param->sglen;
1461 context.dev = dev;
1462 init_completion (&context.done);
1463 spin_lock_init (&context.lock);
1464
1465 memset (urbs, 0, sizeof urbs);
1466 udev = testdev_to_usbdev (dev);
1467 dev_info(&dev->intf->dev,
1468 "... iso period %d %sframes, wMaxPacket %04x\n",
1469 1 << (desc->bInterval - 1),
1470 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1471 le16_to_cpu(desc->wMaxPacketSize));
1472
1473 for (i = 0; i < param->sglen; i++) {
1474 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1475 param->length);
1476 if (!urbs [i]) {
1477 status = -ENOMEM;
1478 goto fail;
1479 }
1480 packets += urbs[i]->number_of_packets;
1481 urbs [i]->context = &context;
1482 }
1483 packets *= param->iterations;
1484 dev_info(&dev->intf->dev,
1485 "... total %lu msec (%lu packets)\n",
1486 (packets * (1 << (desc->bInterval - 1)))
1487 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1488 packets);
1489
1490 spin_lock_irq (&context.lock);
1491 for (i = 0; i < param->sglen; i++) {
1492 ++context.pending;
1493 status = usb_submit_urb (urbs [i], GFP_ATOMIC);
1494 if (status < 0) {
1495 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1496 if (i == 0) {
1497 spin_unlock_irq (&context.lock);
1498 goto fail;
1499 }
1500
1501 simple_free_urb (urbs [i]);
1502 urbs[i] = NULL;
1503 context.pending--;
1504 context.submit_error = 1;
1505 break;
1506 }
1507 }
1508 spin_unlock_irq (&context.lock);
1509
1510 wait_for_completion (&context.done);
1511
1512 for (i = 0; i < param->sglen; i++) {
1513 if (urbs[i])
1514 simple_free_urb(urbs[i]);
1515 }
1516 /*
1517 * Isochronous transfers are expected to fail sometimes. As an
1518 * arbitrary limit, we will report an error if any submissions
1519 * fail or if the transfer failure rate is > 10%.
1520 */
1521 if (status != 0)
1522 ;
1523 else if (context.submit_error)
1524 status = -EACCES;
1525 else if (context.errors > context.packet_count / 10)
1526 status = -EIO;
1527 return status;
1528
1529 fail:
1530 for (i = 0; i < param->sglen; i++) {
1531 if (urbs [i])
1532 simple_free_urb (urbs [i]);
1533 }
1534 return status;
1535 }
1536
1537 /*-------------------------------------------------------------------------*/
1538
1539 /* We only have this one interface to user space, through usbfs.
1540 * User mode code can scan usbfs to find N different devices (maybe on
1541 * different busses) to use when testing, and allocate one thread per
1542 * test. So discovery is simplified, and we have no device naming issues.
1543 *
1544 * Don't use these only as stress/load tests. Use them along with with
1545 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1546 * video capture, and so on. Run different tests at different times, in
1547 * different sequences. Nothing here should interact with other devices,
1548 * except indirectly by consuming USB bandwidth and CPU resources for test
1549 * threads and request completion. But the only way to know that for sure
1550 * is to test when HC queues are in use by many devices.
1551 *
1552 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
1553 * it locks out usbcore in certain code paths. Notably, if you disconnect
1554 * the device-under-test, khubd will wait block forever waiting for the
1555 * ioctl to complete ... so that usb_disconnect() can abort the pending
1556 * urbs and then call usbtest_disconnect(). To abort a test, you're best
1557 * off just killing the userspace task and waiting for it to exit.
1558 */
1559
1560 static int
1561 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1562 {
1563 struct usbtest_dev *dev = usb_get_intfdata (intf);
1564 struct usb_device *udev = testdev_to_usbdev (dev);
1565 struct usbtest_param *param = buf;
1566 int retval = -EOPNOTSUPP;
1567 struct urb *urb;
1568 struct scatterlist *sg;
1569 struct usb_sg_request req;
1570 struct timeval start;
1571 unsigned i;
1572
1573 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1574
1575 pattern = mod_pattern;
1576
1577 if (code != USBTEST_REQUEST)
1578 return -EOPNOTSUPP;
1579
1580 if (param->iterations <= 0)
1581 return -EINVAL;
1582
1583 if (mutex_lock_interruptible(&dev->lock))
1584 return -ERESTARTSYS;
1585
1586 /* FIXME: What if a system sleep starts while a test is running? */
1587
1588 /* some devices, like ez-usb default devices, need a non-default
1589 * altsetting to have any active endpoints. some tests change
1590 * altsettings; force a default so most tests don't need to check.
1591 */
1592 if (dev->info->alt >= 0) {
1593 int res;
1594
1595 if (intf->altsetting->desc.bInterfaceNumber) {
1596 mutex_unlock(&dev->lock);
1597 return -ENODEV;
1598 }
1599 res = set_altsetting (dev, dev->info->alt);
1600 if (res) {
1601 dev_err (&intf->dev,
1602 "set altsetting to %d failed, %d\n",
1603 dev->info->alt, res);
1604 mutex_unlock(&dev->lock);
1605 return res;
1606 }
1607 }
1608
1609 /*
1610 * Just a bunch of test cases that every HCD is expected to handle.
1611 *
1612 * Some may need specific firmware, though it'd be good to have
1613 * one firmware image to handle all the test cases.
1614 *
1615 * FIXME add more tests! cancel requests, verify the data, control
1616 * queueing, concurrent read+write threads, and so on.
1617 */
1618 do_gettimeofday (&start);
1619 switch (param->test_num) {
1620
1621 case 0:
1622 dev_info(&intf->dev, "TEST 0: NOP\n");
1623 retval = 0;
1624 break;
1625
1626 /* Simple non-queued bulk I/O tests */
1627 case 1:
1628 if (dev->out_pipe == 0)
1629 break;
1630 dev_info(&intf->dev,
1631 "TEST 1: write %d bytes %u times\n",
1632 param->length, param->iterations);
1633 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1634 if (!urb) {
1635 retval = -ENOMEM;
1636 break;
1637 }
1638 // FIRMWARE: bulk sink (maybe accepts short writes)
1639 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
1640 simple_free_urb (urb);
1641 break;
1642 case 2:
1643 if (dev->in_pipe == 0)
1644 break;
1645 dev_info(&intf->dev,
1646 "TEST 2: read %d bytes %u times\n",
1647 param->length, param->iterations);
1648 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1649 if (!urb) {
1650 retval = -ENOMEM;
1651 break;
1652 }
1653 // FIRMWARE: bulk source (maybe generates short writes)
1654 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
1655 simple_free_urb (urb);
1656 break;
1657 case 3:
1658 if (dev->out_pipe == 0 || param->vary == 0)
1659 break;
1660 dev_info(&intf->dev,
1661 "TEST 3: write/%d 0..%d bytes %u times\n",
1662 param->vary, param->length, param->iterations);
1663 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1664 if (!urb) {
1665 retval = -ENOMEM;
1666 break;
1667 }
1668 // FIRMWARE: bulk sink (maybe accepts short writes)
1669 retval = simple_io(dev, urb, param->iterations, param->vary,
1670 0, "test3");
1671 simple_free_urb (urb);
1672 break;
1673 case 4:
1674 if (dev->in_pipe == 0 || param->vary == 0)
1675 break;
1676 dev_info(&intf->dev,
1677 "TEST 4: read/%d 0..%d bytes %u times\n",
1678 param->vary, param->length, param->iterations);
1679 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1680 if (!urb) {
1681 retval = -ENOMEM;
1682 break;
1683 }
1684 // FIRMWARE: bulk source (maybe generates short writes)
1685 retval = simple_io(dev, urb, param->iterations, param->vary,
1686 0, "test4");
1687 simple_free_urb (urb);
1688 break;
1689
1690 /* Queued bulk I/O tests */
1691 case 5:
1692 if (dev->out_pipe == 0 || param->sglen == 0)
1693 break;
1694 dev_info(&intf->dev,
1695 "TEST 5: write %d sglists %d entries of %d bytes\n",
1696 param->iterations,
1697 param->sglen, param->length);
1698 sg = alloc_sglist (param->sglen, param->length, 0);
1699 if (!sg) {
1700 retval = -ENOMEM;
1701 break;
1702 }
1703 // FIRMWARE: bulk sink (maybe accepts short writes)
1704 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1705 &req, sg, param->sglen);
1706 free_sglist (sg, param->sglen);
1707 break;
1708
1709 case 6:
1710 if (dev->in_pipe == 0 || param->sglen == 0)
1711 break;
1712 dev_info(&intf->dev,
1713 "TEST 6: read %d sglists %d entries of %d bytes\n",
1714 param->iterations,
1715 param->sglen, param->length);
1716 sg = alloc_sglist (param->sglen, param->length, 0);
1717 if (!sg) {
1718 retval = -ENOMEM;
1719 break;
1720 }
1721 // FIRMWARE: bulk source (maybe generates short writes)
1722 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1723 &req, sg, param->sglen);
1724 free_sglist (sg, param->sglen);
1725 break;
1726 case 7:
1727 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1728 break;
1729 dev_info(&intf->dev,
1730 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1731 param->vary, param->iterations,
1732 param->sglen, param->length);
1733 sg = alloc_sglist (param->sglen, param->length, param->vary);
1734 if (!sg) {
1735 retval = -ENOMEM;
1736 break;
1737 }
1738 // FIRMWARE: bulk sink (maybe accepts short writes)
1739 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1740 &req, sg, param->sglen);
1741 free_sglist (sg, param->sglen);
1742 break;
1743 case 8:
1744 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1745 break;
1746 dev_info(&intf->dev,
1747 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1748 param->vary, param->iterations,
1749 param->sglen, param->length);
1750 sg = alloc_sglist (param->sglen, param->length, param->vary);
1751 if (!sg) {
1752 retval = -ENOMEM;
1753 break;
1754 }
1755 // FIRMWARE: bulk source (maybe generates short writes)
1756 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1757 &req, sg, param->sglen);
1758 free_sglist (sg, param->sglen);
1759 break;
1760
1761 /* non-queued sanity tests for control (chapter 9 subset) */
1762 case 9:
1763 retval = 0;
1764 dev_info(&intf->dev,
1765 "TEST 9: ch9 (subset) control tests, %d times\n",
1766 param->iterations);
1767 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1768 retval = ch9_postconfig (dev);
1769 if (retval)
1770 dev_err(&intf->dev, "ch9 subset failed, "
1771 "iterations left %d\n", i);
1772 break;
1773
1774 /* queued control messaging */
1775 case 10:
1776 if (param->sglen == 0)
1777 break;
1778 retval = 0;
1779 dev_info(&intf->dev,
1780 "TEST 10: queue %d control calls, %d times\n",
1781 param->sglen,
1782 param->iterations);
1783 retval = test_ctrl_queue (dev, param);
1784 break;
1785
1786 /* simple non-queued unlinks (ring with one urb) */
1787 case 11:
1788 if (dev->in_pipe == 0 || !param->length)
1789 break;
1790 retval = 0;
1791 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
1792 param->iterations, param->length);
1793 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1794 retval = unlink_simple (dev, dev->in_pipe,
1795 param->length);
1796 if (retval)
1797 dev_err(&intf->dev, "unlink reads failed %d, "
1798 "iterations left %d\n", retval, i);
1799 break;
1800 case 12:
1801 if (dev->out_pipe == 0 || !param->length)
1802 break;
1803 retval = 0;
1804 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
1805 param->iterations, param->length);
1806 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1807 retval = unlink_simple (dev, dev->out_pipe,
1808 param->length);
1809 if (retval)
1810 dev_err(&intf->dev, "unlink writes failed %d, "
1811 "iterations left %d\n", retval, i);
1812 break;
1813
1814 /* ep halt tests */
1815 case 13:
1816 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1817 break;
1818 retval = 0;
1819 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
1820 param->iterations);
1821 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1822 retval = halt_simple (dev);
1823
1824 if (retval)
1825 ERROR(dev, "halts failed, iterations left %d\n", i);
1826 break;
1827
1828 /* control write tests */
1829 case 14:
1830 if (!dev->info->ctrl_out)
1831 break;
1832 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1833 param->iterations,
1834 realworld ? 1 : 0, param->length,
1835 param->vary);
1836 retval = ctrl_out(dev, param->iterations,
1837 param->length, param->vary);
1838 break;
1839
1840 /* iso write tests */
1841 case 15:
1842 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1843 break;
1844 dev_info(&intf->dev,
1845 "TEST 15: write %d iso, %d entries of %d bytes\n",
1846 param->iterations,
1847 param->sglen, param->length);
1848 // FIRMWARE: iso sink
1849 retval = test_iso_queue (dev, param,
1850 dev->out_iso_pipe, dev->iso_out);
1851 break;
1852
1853 /* iso read tests */
1854 case 16:
1855 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1856 break;
1857 dev_info(&intf->dev,
1858 "TEST 16: read %d iso, %d entries of %d bytes\n",
1859 param->iterations,
1860 param->sglen, param->length);
1861 // FIRMWARE: iso source
1862 retval = test_iso_queue (dev, param,
1863 dev->in_iso_pipe, dev->iso_in);
1864 break;
1865
1866 // FIXME unlink from queue (ring with N urbs)
1867
1868 // FIXME scatterlist cancel (needs helper thread)
1869
1870 }
1871 do_gettimeofday (&param->duration);
1872 param->duration.tv_sec -= start.tv_sec;
1873 param->duration.tv_usec -= start.tv_usec;
1874 if (param->duration.tv_usec < 0) {
1875 param->duration.tv_usec += 1000 * 1000;
1876 param->duration.tv_sec -= 1;
1877 }
1878 mutex_unlock(&dev->lock);
1879 return retval;
1880 }
1881
1882 /*-------------------------------------------------------------------------*/
1883
1884 static unsigned force_interrupt = 0;
1885 module_param (force_interrupt, uint, 0);
1886 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1887
1888 #ifdef GENERIC
1889 static unsigned short vendor;
1890 module_param(vendor, ushort, 0);
1891 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1892
1893 static unsigned short product;
1894 module_param(product, ushort, 0);
1895 MODULE_PARM_DESC (product, "product code (from vendor)");
1896 #endif
1897
1898 static int
1899 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1900 {
1901 struct usb_device *udev;
1902 struct usbtest_dev *dev;
1903 struct usbtest_info *info;
1904 char *rtest, *wtest;
1905 char *irtest, *iwtest;
1906
1907 udev = interface_to_usbdev (intf);
1908
1909 #ifdef GENERIC
1910 /* specify devices by module parameters? */
1911 if (id->match_flags == 0) {
1912 /* vendor match required, product match optional */
1913 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1914 return -ENODEV;
1915 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1916 return -ENODEV;
1917 dev_info(&intf->dev, "matched module params, "
1918 "vend=0x%04x prod=0x%04x\n",
1919 le16_to_cpu(udev->descriptor.idVendor),
1920 le16_to_cpu(udev->descriptor.idProduct));
1921 }
1922 #endif
1923
1924 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1925 if (!dev)
1926 return -ENOMEM;
1927 info = (struct usbtest_info *) id->driver_info;
1928 dev->info = info;
1929 mutex_init(&dev->lock);
1930
1931 dev->intf = intf;
1932
1933 /* cacheline-aligned scratch for i/o */
1934 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) {
1935 kfree (dev);
1936 return -ENOMEM;
1937 }
1938
1939 /* NOTE this doesn't yet test the handful of difference that are
1940 * visible with high speed interrupts: bigger maxpacket (1K) and
1941 * "high bandwidth" modes (up to 3 packets/uframe).
1942 */
1943 rtest = wtest = "";
1944 irtest = iwtest = "";
1945 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1946 if (info->ep_in) {
1947 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1948 rtest = " intr-in";
1949 }
1950 if (info->ep_out) {
1951 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1952 wtest = " intr-out";
1953 }
1954 } else {
1955 if (info->autoconf) {
1956 int status;
1957
1958 status = get_endpoints (dev, intf);
1959 if (status < 0) {
1960 WARNING(dev, "couldn't get endpoints, %d\n",
1961 status);
1962 return status;
1963 }
1964 /* may find bulk or ISO pipes */
1965 } else {
1966 if (info->ep_in)
1967 dev->in_pipe = usb_rcvbulkpipe (udev,
1968 info->ep_in);
1969 if (info->ep_out)
1970 dev->out_pipe = usb_sndbulkpipe (udev,
1971 info->ep_out);
1972 }
1973 if (dev->in_pipe)
1974 rtest = " bulk-in";
1975 if (dev->out_pipe)
1976 wtest = " bulk-out";
1977 if (dev->in_iso_pipe)
1978 irtest = " iso-in";
1979 if (dev->out_iso_pipe)
1980 iwtest = " iso-out";
1981 }
1982
1983 usb_set_intfdata (intf, dev);
1984 dev_info (&intf->dev, "%s\n", info->name);
1985 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1986 ({ char *tmp;
1987 switch (udev->speed) {
1988 case USB_SPEED_LOW: tmp = "low"; break;
1989 case USB_SPEED_FULL: tmp = "full"; break;
1990 case USB_SPEED_HIGH: tmp = "high"; break;
1991 default: tmp = "unknown"; break;
1992 }; tmp; }),
1993 info->ctrl_out ? " in/out" : "",
1994 rtest, wtest,
1995 irtest, iwtest,
1996 info->alt >= 0 ? " (+alt)" : "");
1997 return 0;
1998 }
1999
2000 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
2001 {
2002 return 0;
2003 }
2004
2005 static int usbtest_resume (struct usb_interface *intf)
2006 {
2007 return 0;
2008 }
2009
2010
2011 static void usbtest_disconnect (struct usb_interface *intf)
2012 {
2013 struct usbtest_dev *dev = usb_get_intfdata (intf);
2014
2015 usb_set_intfdata (intf, NULL);
2016 dev_dbg (&intf->dev, "disconnect\n");
2017 kfree (dev);
2018 }
2019
2020 /* Basic testing only needs a device that can source or sink bulk traffic.
2021 * Any device can test control transfers (default with GENERIC binding).
2022 *
2023 * Several entries work with the default EP0 implementation that's built
2024 * into EZ-USB chips. There's a default vendor ID which can be overridden
2025 * by (very) small config EEPROMS, but otherwise all these devices act
2026 * identically until firmware is loaded: only EP0 works. It turns out
2027 * to be easy to make other endpoints work, without modifying that EP0
2028 * behavior. For now, we expect that kind of firmware.
2029 */
2030
2031 /* an21xx or fx versions of ez-usb */
2032 static struct usbtest_info ez1_info = {
2033 .name = "EZ-USB device",
2034 .ep_in = 2,
2035 .ep_out = 2,
2036 .alt = 1,
2037 };
2038
2039 /* fx2 version of ez-usb */
2040 static struct usbtest_info ez2_info = {
2041 .name = "FX2 device",
2042 .ep_in = 6,
2043 .ep_out = 2,
2044 .alt = 1,
2045 };
2046
2047 /* ezusb family device with dedicated usb test firmware,
2048 */
2049 static struct usbtest_info fw_info = {
2050 .name = "usb test device",
2051 .ep_in = 2,
2052 .ep_out = 2,
2053 .alt = 1,
2054 .autoconf = 1, // iso and ctrl_out need autoconf
2055 .ctrl_out = 1,
2056 .iso = 1, // iso_ep's are #8 in/out
2057 };
2058
2059 /* peripheral running Linux and 'zero.c' test firmware, or
2060 * its user-mode cousin. different versions of this use
2061 * different hardware with the same vendor/product codes.
2062 * host side MUST rely on the endpoint descriptors.
2063 */
2064 static struct usbtest_info gz_info = {
2065 .name = "Linux gadget zero",
2066 .autoconf = 1,
2067 .ctrl_out = 1,
2068 .alt = 0,
2069 };
2070
2071 static struct usbtest_info um_info = {
2072 .name = "Linux user mode test driver",
2073 .autoconf = 1,
2074 .alt = -1,
2075 };
2076
2077 static struct usbtest_info um2_info = {
2078 .name = "Linux user mode ISO test driver",
2079 .autoconf = 1,
2080 .iso = 1,
2081 .alt = -1,
2082 };
2083
2084 #ifdef IBOT2
2085 /* this is a nice source of high speed bulk data;
2086 * uses an FX2, with firmware provided in the device
2087 */
2088 static struct usbtest_info ibot2_info = {
2089 .name = "iBOT2 webcam",
2090 .ep_in = 2,
2091 .alt = -1,
2092 };
2093 #endif
2094
2095 #ifdef GENERIC
2096 /* we can use any device to test control traffic */
2097 static struct usbtest_info generic_info = {
2098 .name = "Generic USB device",
2099 .alt = -1,
2100 };
2101 #endif
2102
2103
2104 static const struct usb_device_id id_table[] = {
2105
2106 /*-------------------------------------------------------------*/
2107
2108 /* EZ-USB devices which download firmware to replace (or in our
2109 * case augment) the default device implementation.
2110 */
2111
2112 /* generic EZ-USB FX controller */
2113 { USB_DEVICE (0x0547, 0x2235),
2114 .driver_info = (unsigned long) &ez1_info,
2115 },
2116
2117 /* CY3671 development board with EZ-USB FX */
2118 { USB_DEVICE (0x0547, 0x0080),
2119 .driver_info = (unsigned long) &ez1_info,
2120 },
2121
2122 /* generic EZ-USB FX2 controller (or development board) */
2123 { USB_DEVICE (0x04b4, 0x8613),
2124 .driver_info = (unsigned long) &ez2_info,
2125 },
2126
2127 /* re-enumerated usb test device firmware */
2128 { USB_DEVICE (0xfff0, 0xfff0),
2129 .driver_info = (unsigned long) &fw_info,
2130 },
2131
2132 /* "Gadget Zero" firmware runs under Linux */
2133 { USB_DEVICE (0x0525, 0xa4a0),
2134 .driver_info = (unsigned long) &gz_info,
2135 },
2136
2137 /* so does a user-mode variant */
2138 { USB_DEVICE (0x0525, 0xa4a4),
2139 .driver_info = (unsigned long) &um_info,
2140 },
2141
2142 /* ... and a user-mode variant that talks iso */
2143 { USB_DEVICE (0x0525, 0xa4a3),
2144 .driver_info = (unsigned long) &um2_info,
2145 },
2146
2147 #ifdef KEYSPAN_19Qi
2148 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2149 // this does not coexist with the real Keyspan 19qi driver!
2150 { USB_DEVICE (0x06cd, 0x010b),
2151 .driver_info = (unsigned long) &ez1_info,
2152 },
2153 #endif
2154
2155 /*-------------------------------------------------------------*/
2156
2157 #ifdef IBOT2
2158 /* iBOT2 makes a nice source of high speed bulk-in data */
2159 // this does not coexist with a real iBOT2 driver!
2160 { USB_DEVICE (0x0b62, 0x0059),
2161 .driver_info = (unsigned long) &ibot2_info,
2162 },
2163 #endif
2164
2165 /*-------------------------------------------------------------*/
2166
2167 #ifdef GENERIC
2168 /* module params can specify devices to use for control tests */
2169 { .driver_info = (unsigned long) &generic_info, },
2170 #endif
2171
2172 /*-------------------------------------------------------------*/
2173
2174 { }
2175 };
2176 MODULE_DEVICE_TABLE (usb, id_table);
2177
2178 static struct usb_driver usbtest_driver = {
2179 .name = "usbtest",
2180 .id_table = id_table,
2181 .probe = usbtest_probe,
2182 .ioctl = usbtest_ioctl,
2183 .disconnect = usbtest_disconnect,
2184 .suspend = usbtest_suspend,
2185 .resume = usbtest_resume,
2186 };
2187
2188 /*-------------------------------------------------------------------------*/
2189
2190 static int __init usbtest_init (void)
2191 {
2192 #ifdef GENERIC
2193 if (vendor)
2194 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2195 #endif
2196 return usb_register (&usbtest_driver);
2197 }
2198 module_init (usbtest_init);
2199
2200 static void __exit usbtest_exit (void)
2201 {
2202 usb_deregister (&usbtest_driver);
2203 }
2204 module_exit (usbtest_exit);
2205
2206 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2207 MODULE_LICENSE ("GPL");
2208
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree