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tty: Keep the default buffering to sub-page units
[linux-2.6/mini2440.git] / drivers / usb / misc / usbtest.c
bloba9f06d76960ffa936858adaf321d5c53d39605dd
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 module_param (pattern, uint, S_IRUGO);
217 MODULE_PARM_DESC(pattern, "i/o pattern (0 == zeroes)");
218
219 static inline void simple_fill_buf (struct urb *urb)
220 {
221 unsigned i;
222 u8 *buf = urb->transfer_buffer;
223 unsigned len = urb->transfer_buffer_length;
224
225 switch (pattern) {
226 default:
227 // FALLTHROUGH
228 case 0:
229 memset (buf, 0, len);
230 break;
231 case 1: /* mod63 */
232 for (i = 0; i < len; i++)
233 *buf++ = (u8) (i % 63);
234 break;
235 }
236 }
237
238 static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
239 {
240 unsigned i;
241 u8 expected;
242 u8 *buf = urb->transfer_buffer;
243 unsigned len = urb->actual_length;
244
245 for (i = 0; i < len; i++, buf++) {
246 switch (pattern) {
247 /* all-zeroes has no synchronization issues */
248 case 0:
249 expected = 0;
250 break;
251 /* mod63 stays in sync with short-terminated transfers,
252 * or otherwise when host and gadget agree on how large
253 * each usb transfer request should be. resync is done
254 * with set_interface or set_config.
255 */
256 case 1: /* mod63 */
257 expected = i % 63;
258 break;
259 /* always fail unsupported patterns */
260 default:
261 expected = !*buf;
262 break;
263 }
264 if (*buf == expected)
265 continue;
266 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
267 return -EINVAL;
268 }
269 return 0;
270 }
271
272 static void simple_free_urb (struct urb *urb)
273 {
274 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
275 urb->transfer_buffer, urb->transfer_dma);
276 usb_free_urb (urb);
277 }
278
279 static int simple_io (
280 struct usbtest_dev *tdev,
281 struct urb *urb,
282 int iterations,
283 int vary,
284 int expected,
285 const char *label
286 )
287 {
288 struct usb_device *udev = urb->dev;
289 int max = urb->transfer_buffer_length;
290 struct completion completion;
291 int retval = 0;
292
293 urb->context = &completion;
294 while (retval == 0 && iterations-- > 0) {
295 init_completion (&completion);
296 if (usb_pipeout (urb->pipe))
297 simple_fill_buf (urb);
298 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0)
299 break;
300
301 /* NOTE: no timeouts; can't be broken out of by interrupt */
302 wait_for_completion (&completion);
303 retval = urb->status;
304 urb->dev = udev;
305 if (retval == 0 && usb_pipein (urb->pipe))
306 retval = simple_check_buf(tdev, urb);
307
308 if (vary) {
309 int len = urb->transfer_buffer_length;
310
311 len += vary;
312 len %= max;
313 if (len == 0)
314 len = (vary < max) ? vary : max;
315 urb->transfer_buffer_length = len;
316 }
317
318 /* FIXME if endpoint halted, clear halt (and log) */
319 }
320 urb->transfer_buffer_length = max;
321
322 if (expected != retval)
323 dev_err(&udev->dev,
324 "%s failed, iterations left %d, status %d (not %d)\n",
325 label, iterations, retval, expected);
326 return retval;
327 }
328
329
330 /*-------------------------------------------------------------------------*/
331
332 /* We use scatterlist primitives to test queued I/O.
333 * Yes, this also tests the scatterlist primitives.
334 */
335
336 static void free_sglist (struct scatterlist *sg, int nents)
337 {
338 unsigned i;
339
340 if (!sg)
341 return;
342 for (i = 0; i < nents; i++) {
343 if (!sg_page(&sg[i]))
344 continue;
345 kfree (sg_virt(&sg[i]));
346 }
347 kfree (sg);
348 }
349
350 static struct scatterlist *
351 alloc_sglist (int nents, int max, int vary)
352 {
353 struct scatterlist *sg;
354 unsigned i;
355 unsigned size = max;
356
357 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL);
358 if (!sg)
359 return NULL;
360 sg_init_table(sg, nents);
361
362 for (i = 0; i < nents; i++) {
363 char *buf;
364 unsigned j;
365
366 buf = kzalloc (size, GFP_KERNEL);
367 if (!buf) {
368 free_sglist (sg, i);
369 return NULL;
370 }
371
372 /* kmalloc pages are always physically contiguous! */
373 sg_set_buf(&sg[i], buf, size);
374
375 switch (pattern) {
376 case 0:
377 /* already zeroed */
378 break;
379 case 1:
380 for (j = 0; j < size; j++)
381 *buf++ = (u8) (j % 63);
382 break;
383 }
384
385 if (vary) {
386 size += vary;
387 size %= max;
388 if (size == 0)
389 size = (vary < max) ? vary : max;
390 }
391 }
392
393 return sg;
394 }
395
396 static int perform_sglist (
397 struct usbtest_dev *tdev,
398 unsigned iterations,
399 int pipe,
400 struct usb_sg_request *req,
401 struct scatterlist *sg,
402 int nents
403 )
404 {
405 struct usb_device *udev = testdev_to_usbdev(tdev);
406 int retval = 0;
407
408 while (retval == 0 && iterations-- > 0) {
409 retval = usb_sg_init (req, udev, pipe,
410 (udev->speed == USB_SPEED_HIGH)
411 ? (INTERRUPT_RATE << 3)
412 : INTERRUPT_RATE,
413 sg, nents, 0, GFP_KERNEL);
414
415 if (retval)
416 break;
417 usb_sg_wait (req);
418 retval = req->status;
419
420 /* FIXME check resulting data pattern */
421
422 /* FIXME if endpoint halted, clear halt (and log) */
423 }
424
425 // FIXME for unlink or fault handling tests, don't report
426 // failure if retval is as we expected ...
427
428 if (retval)
429 ERROR(tdev, "perform_sglist failed, "
430 "iterations left %d, status %d\n",
431 iterations, retval);
432 return retval;
433 }
434
435
436 /*-------------------------------------------------------------------------*/
437
438 /* unqueued control message testing
439 *
440 * there's a nice set of device functional requirements in chapter 9 of the
441 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
442 * special test firmware.
443 *
444 * we know the device is configured (or suspended) by the time it's visible
445 * through usbfs. we can't change that, so we won't test enumeration (which
446 * worked 'well enough' to get here, this time), power management (ditto),
447 * or remote wakeup (which needs human interaction).
448 */
449
450 static unsigned realworld = 1;
451 module_param (realworld, uint, 0);
452 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
453
454 static int get_altsetting (struct usbtest_dev *dev)
455 {
456 struct usb_interface *iface = dev->intf;
457 struct usb_device *udev = interface_to_usbdev (iface);
458 int retval;
459
460 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
461 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
462 0, iface->altsetting [0].desc.bInterfaceNumber,
463 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
464 switch (retval) {
465 case 1:
466 return dev->buf [0];
467 case 0:
468 retval = -ERANGE;
469 // FALLTHROUGH
470 default:
471 return retval;
472 }
473 }
474
475 static int set_altsetting (struct usbtest_dev *dev, int alternate)
476 {
477 struct usb_interface *iface = dev->intf;
478 struct usb_device *udev;
479
480 if (alternate < 0 || alternate >= 256)
481 return -EINVAL;
482
483 udev = interface_to_usbdev (iface);
484 return usb_set_interface (udev,
485 iface->altsetting [0].desc.bInterfaceNumber,
486 alternate);
487 }
488
489 static int is_good_config(struct usbtest_dev *tdev, int len)
490 {
491 struct usb_config_descriptor *config;
492
493 if (len < sizeof *config)
494 return 0;
495 config = (struct usb_config_descriptor *) tdev->buf;
496
497 switch (config->bDescriptorType) {
498 case USB_DT_CONFIG:
499 case USB_DT_OTHER_SPEED_CONFIG:
500 if (config->bLength != 9) {
501 ERROR(tdev, "bogus config descriptor length\n");
502 return 0;
503 }
504 /* this bit 'must be 1' but often isn't */
505 if (!realworld && !(config->bmAttributes & 0x80)) {
506 ERROR(tdev, "high bit of config attributes not set\n");
507 return 0;
508 }
509 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
510 ERROR(tdev, "reserved config bits set\n");
511 return 0;
512 }
513 break;
514 default:
515 return 0;
516 }
517
518 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
519 return 1;
520 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
521 return 1;
522 ERROR(tdev, "bogus config descriptor read size\n");
523 return 0;
524 }
525
526 /* sanity test for standard requests working with usb_control_mesg() and some
527 * of the utility functions which use it.
528 *
529 * this doesn't test how endpoint halts behave or data toggles get set, since
530 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
531 * halt or toggle). toggle testing is impractical without support from hcds.
532 *
533 * this avoids failing devices linux would normally work with, by not testing
534 * config/altsetting operations for devices that only support their defaults.
535 * such devices rarely support those needless operations.
536 *
537 * NOTE that since this is a sanity test, it's not examining boundary cases
538 * to see if usbcore, hcd, and device all behave right. such testing would
539 * involve varied read sizes and other operation sequences.
540 */
541 static int ch9_postconfig (struct usbtest_dev *dev)
542 {
543 struct usb_interface *iface = dev->intf;
544 struct usb_device *udev = interface_to_usbdev (iface);
545 int i, alt, retval;
546
547 /* [9.2.3] if there's more than one altsetting, we need to be able to
548 * set and get each one. mostly trusts the descriptors from usbcore.
549 */
550 for (i = 0; i < iface->num_altsetting; i++) {
551
552 /* 9.2.3 constrains the range here */
553 alt = iface->altsetting [i].desc.bAlternateSetting;
554 if (alt < 0 || alt >= iface->num_altsetting) {
555 dev_err(&iface->dev,
556 "invalid alt [%d].bAltSetting = %d\n",
557 i, alt);
558 }
559
560 /* [real world] get/set unimplemented if there's only one */
561 if (realworld && iface->num_altsetting == 1)
562 continue;
563
564 /* [9.4.10] set_interface */
565 retval = set_altsetting (dev, alt);
566 if (retval) {
567 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
568 alt, retval);
569 return retval;
570 }
571
572 /* [9.4.4] get_interface always works */
573 retval = get_altsetting (dev);
574 if (retval != alt) {
575 dev_err(&iface->dev, "get alt should be %d, was %d\n",
576 alt, retval);
577 return (retval < 0) ? retval : -EDOM;
578 }
579
580 }
581
582 /* [real world] get_config unimplemented if there's only one */
583 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
584 int expected = udev->actconfig->desc.bConfigurationValue;
585
586 /* [9.4.2] get_configuration always works
587 * ... although some cheap devices (like one TI Hub I've got)
588 * won't return config descriptors except before set_config.
589 */
590 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
591 USB_REQ_GET_CONFIGURATION,
592 USB_DIR_IN | USB_RECIP_DEVICE,
593 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
594 if (retval != 1 || dev->buf [0] != expected) {
595 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
596 retval, dev->buf[0], expected);
597 return (retval < 0) ? retval : -EDOM;
598 }
599 }
600
601 /* there's always [9.4.3] a device descriptor [9.6.1] */
602 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
603 dev->buf, sizeof udev->descriptor);
604 if (retval != sizeof udev->descriptor) {
605 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
606 return (retval < 0) ? retval : -EDOM;
607 }
608
609 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
610 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
611 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
612 dev->buf, TBUF_SIZE);
613 if (!is_good_config(dev, retval)) {
614 dev_err(&iface->dev,
615 "config [%d] descriptor --> %d\n",
616 i, retval);
617 return (retval < 0) ? retval : -EDOM;
618 }
619
620 // FIXME cross-checking udev->config[i] to make sure usbcore
621 // parsed it right (etc) would be good testing paranoia
622 }
623
624 /* and sometimes [9.2.6.6] speed dependent descriptors */
625 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
626 struct usb_qualifier_descriptor *d = NULL;
627
628 /* device qualifier [9.6.2] */
629 retval = usb_get_descriptor (udev,
630 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
631 sizeof (struct usb_qualifier_descriptor));
632 if (retval == -EPIPE) {
633 if (udev->speed == USB_SPEED_HIGH) {
634 dev_err(&iface->dev,
635 "hs dev qualifier --> %d\n",
636 retval);
637 return (retval < 0) ? retval : -EDOM;
638 }
639 /* usb2.0 but not high-speed capable; fine */
640 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
641 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
642 return (retval < 0) ? retval : -EDOM;
643 } else
644 d = (struct usb_qualifier_descriptor *) dev->buf;
645
646 /* might not have [9.6.2] any other-speed configs [9.6.4] */
647 if (d) {
648 unsigned max = d->bNumConfigurations;
649 for (i = 0; i < max; i++) {
650 retval = usb_get_descriptor (udev,
651 USB_DT_OTHER_SPEED_CONFIG, i,
652 dev->buf, TBUF_SIZE);
653 if (!is_good_config(dev, retval)) {
654 dev_err(&iface->dev,
655 "other speed config --> %d\n",
656 retval);
657 return (retval < 0) ? retval : -EDOM;
658 }
659 }
660 }
661 }
662 // FIXME fetch strings from at least the device descriptor
663
664 /* [9.4.5] get_status always works */
665 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
666 if (retval != 2) {
667 dev_err(&iface->dev, "get dev status --> %d\n", retval);
668 return (retval < 0) ? retval : -EDOM;
669 }
670
671 // FIXME configuration.bmAttributes says if we could try to set/clear
672 // the device's remote wakeup feature ... if we can, test that here
673
674 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
675 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
676 if (retval != 2) {
677 dev_err(&iface->dev, "get interface status --> %d\n", retval);
678 return (retval < 0) ? retval : -EDOM;
679 }
680 // FIXME get status for each endpoint in the interface
681
682 return 0;
683 }
684
685 /*-------------------------------------------------------------------------*/
686
687 /* use ch9 requests to test whether:
688 * (a) queues work for control, keeping N subtests queued and
689 * active (auto-resubmit) for M loops through the queue.
690 * (b) protocol stalls (control-only) will autorecover.
691 * it's not like bulk/intr; no halt clearing.
692 * (c) short control reads are reported and handled.
693 * (d) queues are always processed in-order
694 */
695
696 struct ctrl_ctx {
697 spinlock_t lock;
698 struct usbtest_dev *dev;
699 struct completion complete;
700 unsigned count;
701 unsigned pending;
702 int status;
703 struct urb **urb;
704 struct usbtest_param *param;
705 int last;
706 };
707
708 #define NUM_SUBCASES 15 /* how many test subcases here? */
709
710 struct subcase {
711 struct usb_ctrlrequest setup;
712 int number;
713 int expected;
714 };
715
716 static void ctrl_complete (struct urb *urb)
717 {
718 struct ctrl_ctx *ctx = urb->context;
719 struct usb_ctrlrequest *reqp;
720 struct subcase *subcase;
721 int status = urb->status;
722
723 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
724 subcase = container_of (reqp, struct subcase, setup);
725
726 spin_lock (&ctx->lock);
727 ctx->count--;
728 ctx->pending--;
729
730 /* queue must transfer and complete in fifo order, unless
731 * usb_unlink_urb() is used to unlink something not at the
732 * physical queue head (not tested).
733 */
734 if (subcase->number > 0) {
735 if ((subcase->number - ctx->last) != 1) {
736 ERROR(ctx->dev,
737 "subcase %d completed out of order, last %d\n",
738 subcase->number, ctx->last);
739 status = -EDOM;
740 ctx->last = subcase->number;
741 goto error;
742 }
743 }
744 ctx->last = subcase->number;
745
746 /* succeed or fault in only one way? */
747 if (status == subcase->expected)
748 status = 0;
749
750 /* async unlink for cleanup? */
751 else if (status != -ECONNRESET) {
752
753 /* some faults are allowed, not required */
754 if (subcase->expected > 0 && (
755 ((status == -subcase->expected /* happened */
756 || status == 0)))) /* didn't */
757 status = 0;
758 /* sometimes more than one fault is allowed */
759 else if (subcase->number == 12 && status == -EPIPE)
760 status = 0;
761 else
762 ERROR(ctx->dev, "subtest %d error, status %d\n",
763 subcase->number, status);
764 }
765
766 /* unexpected status codes mean errors; ideally, in hardware */
767 if (status) {
768 error:
769 if (ctx->status == 0) {
770 int i;
771
772 ctx->status = status;
773 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
774 "%d left, subcase %d, len %d/%d\n",
775 reqp->bRequestType, reqp->bRequest,
776 status, ctx->count, subcase->number,
777 urb->actual_length,
778 urb->transfer_buffer_length);
779
780 /* FIXME this "unlink everything" exit route should
781 * be a separate test case.
782 */
783
784 /* unlink whatever's still pending */
785 for (i = 1; i < ctx->param->sglen; i++) {
786 struct urb *u = ctx->urb [
787 (i + subcase->number)
788 % ctx->param->sglen];
789
790 if (u == urb || !u->dev)
791 continue;
792 spin_unlock(&ctx->lock);
793 status = usb_unlink_urb (u);
794 spin_lock(&ctx->lock);
795 switch (status) {
796 case -EINPROGRESS:
797 case -EBUSY:
798 case -EIDRM:
799 continue;
800 default:
801 ERROR(ctx->dev, "urb unlink --> %d\n",
802 status);
803 }
804 }
805 status = ctx->status;
806 }
807 }
808
809 /* resubmit if we need to, else mark this as done */
810 if ((status == 0) && (ctx->pending < ctx->count)) {
811 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) {
812 ERROR(ctx->dev,
813 "can't resubmit ctrl %02x.%02x, err %d\n",
814 reqp->bRequestType, reqp->bRequest, status);
815 urb->dev = NULL;
816 } else
817 ctx->pending++;
818 } else
819 urb->dev = NULL;
820
821 /* signal completion when nothing's queued */
822 if (ctx->pending == 0)
823 complete (&ctx->complete);
824 spin_unlock (&ctx->lock);
825 }
826
827 static int
828 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
829 {
830 struct usb_device *udev = testdev_to_usbdev (dev);
831 struct urb **urb;
832 struct ctrl_ctx context;
833 int i;
834
835 spin_lock_init (&context.lock);
836 context.dev = dev;
837 init_completion (&context.complete);
838 context.count = param->sglen * param->iterations;
839 context.pending = 0;
840 context.status = -ENOMEM;
841 context.param = param;
842 context.last = -1;
843
844 /* allocate and init the urbs we'll queue.
845 * as with bulk/intr sglists, sglen is the queue depth; it also
846 * controls which subtests run (more tests than sglen) or rerun.
847 */
848 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
849 if (!urb)
850 return -ENOMEM;
851 for (i = 0; i < param->sglen; i++) {
852 int pipe = usb_rcvctrlpipe (udev, 0);
853 unsigned len;
854 struct urb *u;
855 struct usb_ctrlrequest req;
856 struct subcase *reqp;
857
858 /* sign of this variable means:
859 * -: tested code must return this (negative) error code
860 * +: tested code may return this (negative too) error code
861 */
862 int expected = 0;
863
864 /* requests here are mostly expected to succeed on any
865 * device, but some are chosen to trigger protocol stalls
866 * or short reads.
867 */
868 memset (&req, 0, sizeof req);
869 req.bRequest = USB_REQ_GET_DESCRIPTOR;
870 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
871
872 switch (i % NUM_SUBCASES) {
873 case 0: // get device descriptor
874 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
875 len = sizeof (struct usb_device_descriptor);
876 break;
877 case 1: // get first config descriptor (only)
878 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
879 len = sizeof (struct usb_config_descriptor);
880 break;
881 case 2: // get altsetting (OFTEN STALLS)
882 req.bRequest = USB_REQ_GET_INTERFACE;
883 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
884 // index = 0 means first interface
885 len = 1;
886 expected = EPIPE;
887 break;
888 case 3: // get interface status
889 req.bRequest = USB_REQ_GET_STATUS;
890 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
891 // interface 0
892 len = 2;
893 break;
894 case 4: // get device status
895 req.bRequest = USB_REQ_GET_STATUS;
896 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
897 len = 2;
898 break;
899 case 5: // get device qualifier (MAY STALL)
900 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
901 len = sizeof (struct usb_qualifier_descriptor);
902 if (udev->speed != USB_SPEED_HIGH)
903 expected = EPIPE;
904 break;
905 case 6: // get first config descriptor, plus interface
906 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
907 len = sizeof (struct usb_config_descriptor);
908 len += sizeof (struct usb_interface_descriptor);
909 break;
910 case 7: // get interface descriptor (ALWAYS STALLS)
911 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
912 // interface == 0
913 len = sizeof (struct usb_interface_descriptor);
914 expected = -EPIPE;
915 break;
916 // NOTE: two consecutive stalls in the queue here.
917 // that tests fault recovery a bit more aggressively.
918 case 8: // clear endpoint halt (MAY STALL)
919 req.bRequest = USB_REQ_CLEAR_FEATURE;
920 req.bRequestType = USB_RECIP_ENDPOINT;
921 // wValue 0 == ep halt
922 // wIndex 0 == ep0 (shouldn't halt!)
923 len = 0;
924 pipe = usb_sndctrlpipe (udev, 0);
925 expected = EPIPE;
926 break;
927 case 9: // get endpoint status
928 req.bRequest = USB_REQ_GET_STATUS;
929 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
930 // endpoint 0
931 len = 2;
932 break;
933 case 10: // trigger short read (EREMOTEIO)
934 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
935 len = 1024;
936 expected = -EREMOTEIO;
937 break;
938 // NOTE: two consecutive _different_ faults in the queue.
939 case 11: // get endpoint descriptor (ALWAYS STALLS)
940 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
941 // endpoint == 0
942 len = sizeof (struct usb_interface_descriptor);
943 expected = EPIPE;
944 break;
945 // NOTE: sometimes even a third fault in the queue!
946 case 12: // get string 0 descriptor (MAY STALL)
947 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
948 // string == 0, for language IDs
949 len = sizeof (struct usb_interface_descriptor);
950 // may succeed when > 4 languages
951 expected = EREMOTEIO; // or EPIPE, if no strings
952 break;
953 case 13: // short read, resembling case 10
954 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
955 // last data packet "should" be DATA1, not DATA0
956 len = 1024 - udev->descriptor.bMaxPacketSize0;
957 expected = -EREMOTEIO;
958 break;
959 case 14: // short read; try to fill the last packet
960 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
961 /* device descriptor size == 18 bytes */
962 len = udev->descriptor.bMaxPacketSize0;
963 switch (len) {
964 case 8: len = 24; break;
965 case 16: len = 32; break;
966 }
967 expected = -EREMOTEIO;
968 break;
969 default:
970 ERROR(dev, "bogus number of ctrl queue testcases!\n");
971 context.status = -EINVAL;
972 goto cleanup;
973 }
974 req.wLength = cpu_to_le16 (len);
975 urb [i] = u = simple_alloc_urb (udev, pipe, len);
976 if (!u)
977 goto cleanup;
978
979 reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL,
980 &u->setup_dma);
981 if (!reqp)
982 goto cleanup;
983 reqp->setup = req;
984 reqp->number = i % NUM_SUBCASES;
985 reqp->expected = expected;
986 u->setup_packet = (char *) &reqp->setup;
987 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
988
989 u->context = &context;
990 u->complete = ctrl_complete;
991 }
992
993 /* queue the urbs */
994 context.urb = urb;
995 spin_lock_irq (&context.lock);
996 for (i = 0; i < param->sglen; i++) {
997 context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
998 if (context.status != 0) {
999 ERROR(dev, "can't submit urb[%d], status %d\n",
1000 i, context.status);
1001 context.count = context.pending;
1002 break;
1003 }
1004 context.pending++;
1005 }
1006 spin_unlock_irq (&context.lock);
1007
1008 /* FIXME set timer and time out; provide a disconnect hook */
1009
1010 /* wait for the last one to complete */
1011 if (context.pending > 0)
1012 wait_for_completion (&context.complete);
1013
1014 cleanup:
1015 for (i = 0; i < param->sglen; i++) {
1016 if (!urb [i])
1017 continue;
1018 urb [i]->dev = udev;
1019 if (urb [i]->setup_packet)
1020 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1021 urb [i]->setup_packet,
1022 urb [i]->setup_dma);
1023 simple_free_urb (urb [i]);
1024 }
1025 kfree (urb);
1026 return context.status;
1027 }
1028 #undef NUM_SUBCASES
1029
1030
1031 /*-------------------------------------------------------------------------*/
1032
1033 static void unlink1_callback (struct urb *urb)
1034 {
1035 int status = urb->status;
1036
1037 // we "know" -EPIPE (stall) never happens
1038 if (!status)
1039 status = usb_submit_urb (urb, GFP_ATOMIC);
1040 if (status) {
1041 urb->status = status;
1042 complete(urb->context);
1043 }
1044 }
1045
1046 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1047 {
1048 struct urb *urb;
1049 struct completion completion;
1050 int retval = 0;
1051
1052 init_completion (&completion);
1053 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1054 if (!urb)
1055 return -ENOMEM;
1056 urb->context = &completion;
1057 urb->complete = unlink1_callback;
1058
1059 /* keep the endpoint busy. there are lots of hc/hcd-internal
1060 * states, and testing should get to all of them over time.
1061 *
1062 * FIXME want additional tests for when endpoint is STALLing
1063 * due to errors, or is just NAKing requests.
1064 */
1065 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) {
1066 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1067 return retval;
1068 }
1069
1070 /* unlinking that should always work. variable delay tests more
1071 * hcd states and code paths, even with little other system load.
1072 */
1073 msleep (jiffies % (2 * INTERRUPT_RATE));
1074 if (async) {
1075 while (!completion_done(&completion)) {
1076 retval = usb_unlink_urb(urb);
1077
1078 switch (retval) {
1079 case -EBUSY:
1080 case -EIDRM:
1081 /* we can't unlink urbs while they're completing
1082 * or if they've completed, and we haven't
1083 * resubmitted. "normal" drivers would prevent
1084 * resubmission, but since we're testing unlink
1085 * paths, we can't.
1086 */
1087 ERROR(dev, "unlink retry\n");
1088 continue;
1089 case 0:
1090 case -EINPROGRESS:
1091 break;
1092
1093 default:
1094 dev_err(&dev->intf->dev,
1095 "unlink fail %d\n", retval);
1096 return retval;
1097 }
1098
1099 break;
1100 }
1101 } else
1102 usb_kill_urb (urb);
1103
1104 wait_for_completion (&completion);
1105 retval = urb->status;
1106 simple_free_urb (urb);
1107
1108 if (async)
1109 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1110 else
1111 return (retval == -ENOENT || retval == -EPERM) ?
1112 0 : retval - 2000;
1113 }
1114
1115 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1116 {
1117 int retval = 0;
1118
1119 /* test sync and async paths */
1120 retval = unlink1 (dev, pipe, len, 1);
1121 if (!retval)
1122 retval = unlink1 (dev, pipe, len, 0);
1123 return retval;
1124 }
1125
1126 /*-------------------------------------------------------------------------*/
1127
1128 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1129 {
1130 int retval;
1131 u16 status;
1132
1133 /* shouldn't look or act halted */
1134 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1135 if (retval < 0) {
1136 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1137 ep, retval);
1138 return retval;
1139 }
1140 if (status != 0) {
1141 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1142 return -EINVAL;
1143 }
1144 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1145 if (retval != 0)
1146 return -EINVAL;
1147 return 0;
1148 }
1149
1150 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1151 {
1152 int retval;
1153 u16 status;
1154
1155 /* should look and act halted */
1156 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1157 if (retval < 0) {
1158 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1159 ep, retval);
1160 return retval;
1161 }
1162 le16_to_cpus(&status);
1163 if (status != 1) {
1164 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1165 return -EINVAL;
1166 }
1167 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1168 if (retval != -EPIPE)
1169 return -EINVAL;
1170 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1171 if (retval != -EPIPE)
1172 return -EINVAL;
1173 return 0;
1174 }
1175
1176 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1177 {
1178 int retval;
1179
1180 /* shouldn't look or act halted now */
1181 retval = verify_not_halted(tdev, ep, urb);
1182 if (retval < 0)
1183 return retval;
1184
1185 /* set halt (protocol test only), verify it worked */
1186 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1187 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1188 USB_ENDPOINT_HALT, ep,
1189 NULL, 0, USB_CTRL_SET_TIMEOUT);
1190 if (retval < 0) {
1191 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1192 return retval;
1193 }
1194 retval = verify_halted(tdev, ep, urb);
1195 if (retval < 0)
1196 return retval;
1197
1198 /* clear halt (tests API + protocol), verify it worked */
1199 retval = usb_clear_halt (urb->dev, urb->pipe);
1200 if (retval < 0) {
1201 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1202 return retval;
1203 }
1204 retval = verify_not_halted(tdev, ep, urb);
1205 if (retval < 0)
1206 return retval;
1207
1208 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1209
1210 return 0;
1211 }
1212
1213 static int halt_simple (struct usbtest_dev *dev)
1214 {
1215 int ep;
1216 int retval = 0;
1217 struct urb *urb;
1218
1219 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1220 if (urb == NULL)
1221 return -ENOMEM;
1222
1223 if (dev->in_pipe) {
1224 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1225 urb->pipe = dev->in_pipe;
1226 retval = test_halt(dev, ep, urb);
1227 if (retval < 0)
1228 goto done;
1229 }
1230
1231 if (dev->out_pipe) {
1232 ep = usb_pipeendpoint (dev->out_pipe);
1233 urb->pipe = dev->out_pipe;
1234 retval = test_halt(dev, ep, urb);
1235 }
1236 done:
1237 simple_free_urb (urb);
1238 return retval;
1239 }
1240
1241 /*-------------------------------------------------------------------------*/
1242
1243 /* Control OUT tests use the vendor control requests from Intel's
1244 * USB 2.0 compliance test device: write a buffer, read it back.
1245 *
1246 * Intel's spec only _requires_ that it work for one packet, which
1247 * is pretty weak. Some HCDs place limits here; most devices will
1248 * need to be able to handle more than one OUT data packet. We'll
1249 * try whatever we're told to try.
1250 */
1251 static int ctrl_out (struct usbtest_dev *dev,
1252 unsigned count, unsigned length, unsigned vary)
1253 {
1254 unsigned i, j, len;
1255 int retval;
1256 u8 *buf;
1257 char *what = "?";
1258 struct usb_device *udev;
1259
1260 if (length < 1 || length > 0xffff || vary >= length)
1261 return -EINVAL;
1262
1263 buf = kmalloc(length, GFP_KERNEL);
1264 if (!buf)
1265 return -ENOMEM;
1266
1267 udev = testdev_to_usbdev (dev);
1268 len = length;
1269 retval = 0;
1270
1271 /* NOTE: hardware might well act differently if we pushed it
1272 * with lots back-to-back queued requests.
1273 */
1274 for (i = 0; i < count; i++) {
1275 /* write patterned data */
1276 for (j = 0; j < len; j++)
1277 buf [j] = i + j;
1278 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1279 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1280 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1281 if (retval != len) {
1282 what = "write";
1283 if (retval >= 0) {
1284 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1285 retval, len);
1286 retval = -EBADMSG;
1287 }
1288 break;
1289 }
1290
1291 /* read it back -- assuming nothing intervened!! */
1292 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1293 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1294 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1295 if (retval != len) {
1296 what = "read";
1297 if (retval >= 0) {
1298 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1299 retval, len);
1300 retval = -EBADMSG;
1301 }
1302 break;
1303 }
1304
1305 /* fail if we can't verify */
1306 for (j = 0; j < len; j++) {
1307 if (buf [j] != (u8) (i + j)) {
1308 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1309 j, buf [j], (u8) i + j);
1310 retval = -EBADMSG;
1311 break;
1312 }
1313 }
1314 if (retval < 0) {
1315 what = "verify";
1316 break;
1317 }
1318
1319 len += vary;
1320
1321 /* [real world] the "zero bytes IN" case isn't really used.
1322 * hardware can easily trip up in this weird case, since its
1323 * status stage is IN, not OUT like other ep0in transfers.
1324 */
1325 if (len > length)
1326 len = realworld ? 1 : 0;
1327 }
1328
1329 if (retval < 0)
1330 ERROR (dev, "ctrl_out %s failed, code %d, count %d\n",
1331 what, retval, i);
1332
1333 kfree (buf);
1334 return retval;
1335 }
1336
1337 /*-------------------------------------------------------------------------*/
1338
1339 /* ISO tests ... mimics common usage
1340 * - buffer length is split into N packets (mostly maxpacket sized)
1341 * - multi-buffers according to sglen
1342 */
1343
1344 struct iso_context {
1345 unsigned count;
1346 unsigned pending;
1347 spinlock_t lock;
1348 struct completion done;
1349 int submit_error;
1350 unsigned long errors;
1351 unsigned long packet_count;
1352 struct usbtest_dev *dev;
1353 };
1354
1355 static void iso_callback (struct urb *urb)
1356 {
1357 struct iso_context *ctx = urb->context;
1358
1359 spin_lock(&ctx->lock);
1360 ctx->count--;
1361
1362 ctx->packet_count += urb->number_of_packets;
1363 if (urb->error_count > 0)
1364 ctx->errors += urb->error_count;
1365 else if (urb->status != 0)
1366 ctx->errors += urb->number_of_packets;
1367
1368 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1369 && !ctx->submit_error) {
1370 int status = usb_submit_urb (urb, GFP_ATOMIC);
1371 switch (status) {
1372 case 0:
1373 goto done;
1374 default:
1375 dev_err(&ctx->dev->intf->dev,
1376 "iso resubmit err %d\n",
1377 status);
1378 /* FALLTHROUGH */
1379 case -ENODEV: /* disconnected */
1380 case -ESHUTDOWN: /* endpoint disabled */
1381 ctx->submit_error = 1;
1382 break;
1383 }
1384 }
1385 simple_free_urb (urb);
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 context.pending--;
1503 context.submit_error = 1;
1504 break;
1505 }
1506 }
1507 spin_unlock_irq (&context.lock);
1508
1509 wait_for_completion (&context.done);
1510
1511 /*
1512 * Isochronous transfers are expected to fail sometimes. As an
1513 * arbitrary limit, we will report an error if any submissions
1514 * fail or if the transfer failure rate is > 10%.
1515 */
1516 if (status != 0)
1517 ;
1518 else if (context.submit_error)
1519 status = -EACCES;
1520 else if (context.errors > context.packet_count / 10)
1521 status = -EIO;
1522 return status;
1523
1524 fail:
1525 for (i = 0; i < param->sglen; i++) {
1526 if (urbs [i])
1527 simple_free_urb (urbs [i]);
1528 }
1529 return status;
1530 }
1531
1532 /*-------------------------------------------------------------------------*/
1533
1534 /* We only have this one interface to user space, through usbfs.
1535 * User mode code can scan usbfs to find N different devices (maybe on
1536 * different busses) to use when testing, and allocate one thread per
1537 * test. So discovery is simplified, and we have no device naming issues.
1538 *
1539 * Don't use these only as stress/load tests. Use them along with with
1540 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1541 * video capture, and so on. Run different tests at different times, in
1542 * different sequences. Nothing here should interact with other devices,
1543 * except indirectly by consuming USB bandwidth and CPU resources for test
1544 * threads and request completion. But the only way to know that for sure
1545 * is to test when HC queues are in use by many devices.
1546 *
1547 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
1548 * it locks out usbcore in certain code paths. Notably, if you disconnect
1549 * the device-under-test, khubd will wait block forever waiting for the
1550 * ioctl to complete ... so that usb_disconnect() can abort the pending
1551 * urbs and then call usbtest_disconnect(). To abort a test, you're best
1552 * off just killing the userspace task and waiting for it to exit.
1553 */
1554
1555 static int
1556 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1557 {
1558 struct usbtest_dev *dev = usb_get_intfdata (intf);
1559 struct usb_device *udev = testdev_to_usbdev (dev);
1560 struct usbtest_param *param = buf;
1561 int retval = -EOPNOTSUPP;
1562 struct urb *urb;
1563 struct scatterlist *sg;
1564 struct usb_sg_request req;
1565 struct timeval start;
1566 unsigned i;
1567
1568 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1569
1570 if (code != USBTEST_REQUEST)
1571 return -EOPNOTSUPP;
1572
1573 if (param->iterations <= 0)
1574 return -EINVAL;
1575
1576 if (mutex_lock_interruptible(&dev->lock))
1577 return -ERESTARTSYS;
1578
1579 /* FIXME: What if a system sleep starts while a test is running? */
1580 if (!intf->is_active) {
1581 mutex_unlock(&dev->lock);
1582 return -EHOSTUNREACH;
1583 }
1584
1585 /* some devices, like ez-usb default devices, need a non-default
1586 * altsetting to have any active endpoints. some tests change
1587 * altsettings; force a default so most tests don't need to check.
1588 */
1589 if (dev->info->alt >= 0) {
1590 int res;
1591
1592 if (intf->altsetting->desc.bInterfaceNumber) {
1593 mutex_unlock(&dev->lock);
1594 return -ENODEV;
1595 }
1596 res = set_altsetting (dev, dev->info->alt);
1597 if (res) {
1598 dev_err (&intf->dev,
1599 "set altsetting to %d failed, %d\n",
1600 dev->info->alt, res);
1601 mutex_unlock(&dev->lock);
1602 return res;
1603 }
1604 }
1605
1606 /*
1607 * Just a bunch of test cases that every HCD is expected to handle.
1608 *
1609 * Some may need specific firmware, though it'd be good to have
1610 * one firmware image to handle all the test cases.
1611 *
1612 * FIXME add more tests! cancel requests, verify the data, control
1613 * queueing, concurrent read+write threads, and so on.
1614 */
1615 do_gettimeofday (&start);
1616 switch (param->test_num) {
1617
1618 case 0:
1619 dev_info(&intf->dev, "TEST 0: NOP\n");
1620 retval = 0;
1621 break;
1622
1623 /* Simple non-queued bulk I/O tests */
1624 case 1:
1625 if (dev->out_pipe == 0)
1626 break;
1627 dev_info(&intf->dev,
1628 "TEST 1: write %d bytes %u times\n",
1629 param->length, param->iterations);
1630 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1631 if (!urb) {
1632 retval = -ENOMEM;
1633 break;
1634 }
1635 // FIRMWARE: bulk sink (maybe accepts short writes)
1636 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
1637 simple_free_urb (urb);
1638 break;
1639 case 2:
1640 if (dev->in_pipe == 0)
1641 break;
1642 dev_info(&intf->dev,
1643 "TEST 2: read %d bytes %u times\n",
1644 param->length, param->iterations);
1645 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1646 if (!urb) {
1647 retval = -ENOMEM;
1648 break;
1649 }
1650 // FIRMWARE: bulk source (maybe generates short writes)
1651 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
1652 simple_free_urb (urb);
1653 break;
1654 case 3:
1655 if (dev->out_pipe == 0 || param->vary == 0)
1656 break;
1657 dev_info(&intf->dev,
1658 "TEST 3: write/%d 0..%d bytes %u times\n",
1659 param->vary, param->length, param->iterations);
1660 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1661 if (!urb) {
1662 retval = -ENOMEM;
1663 break;
1664 }
1665 // FIRMWARE: bulk sink (maybe accepts short writes)
1666 retval = simple_io(dev, urb, param->iterations, param->vary,
1667 0, "test3");
1668 simple_free_urb (urb);
1669 break;
1670 case 4:
1671 if (dev->in_pipe == 0 || param->vary == 0)
1672 break;
1673 dev_info(&intf->dev,
1674 "TEST 4: read/%d 0..%d bytes %u times\n",
1675 param->vary, param->length, param->iterations);
1676 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1677 if (!urb) {
1678 retval = -ENOMEM;
1679 break;
1680 }
1681 // FIRMWARE: bulk source (maybe generates short writes)
1682 retval = simple_io(dev, urb, param->iterations, param->vary,
1683 0, "test4");
1684 simple_free_urb (urb);
1685 break;
1686
1687 /* Queued bulk I/O tests */
1688 case 5:
1689 if (dev->out_pipe == 0 || param->sglen == 0)
1690 break;
1691 dev_info(&intf->dev,
1692 "TEST 5: write %d sglists %d entries of %d bytes\n",
1693 param->iterations,
1694 param->sglen, param->length);
1695 sg = alloc_sglist (param->sglen, param->length, 0);
1696 if (!sg) {
1697 retval = -ENOMEM;
1698 break;
1699 }
1700 // FIRMWARE: bulk sink (maybe accepts short writes)
1701 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1702 &req, sg, param->sglen);
1703 free_sglist (sg, param->sglen);
1704 break;
1705
1706 case 6:
1707 if (dev->in_pipe == 0 || param->sglen == 0)
1708 break;
1709 dev_info(&intf->dev,
1710 "TEST 6: read %d sglists %d entries of %d bytes\n",
1711 param->iterations,
1712 param->sglen, param->length);
1713 sg = alloc_sglist (param->sglen, param->length, 0);
1714 if (!sg) {
1715 retval = -ENOMEM;
1716 break;
1717 }
1718 // FIRMWARE: bulk source (maybe generates short writes)
1719 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1720 &req, sg, param->sglen);
1721 free_sglist (sg, param->sglen);
1722 break;
1723 case 7:
1724 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1725 break;
1726 dev_info(&intf->dev,
1727 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1728 param->vary, param->iterations,
1729 param->sglen, param->length);
1730 sg = alloc_sglist (param->sglen, param->length, param->vary);
1731 if (!sg) {
1732 retval = -ENOMEM;
1733 break;
1734 }
1735 // FIRMWARE: bulk sink (maybe accepts short writes)
1736 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1737 &req, sg, param->sglen);
1738 free_sglist (sg, param->sglen);
1739 break;
1740 case 8:
1741 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1742 break;
1743 dev_info(&intf->dev,
1744 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1745 param->vary, param->iterations,
1746 param->sglen, param->length);
1747 sg = alloc_sglist (param->sglen, param->length, param->vary);
1748 if (!sg) {
1749 retval = -ENOMEM;
1750 break;
1751 }
1752 // FIRMWARE: bulk source (maybe generates short writes)
1753 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1754 &req, sg, param->sglen);
1755 free_sglist (sg, param->sglen);
1756 break;
1757
1758 /* non-queued sanity tests for control (chapter 9 subset) */
1759 case 9:
1760 retval = 0;
1761 dev_info(&intf->dev,
1762 "TEST 9: ch9 (subset) control tests, %d times\n",
1763 param->iterations);
1764 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1765 retval = ch9_postconfig (dev);
1766 if (retval)
1767 dev_err(&intf->dev, "ch9 subset failed, "
1768 "iterations left %d\n", i);
1769 break;
1770
1771 /* queued control messaging */
1772 case 10:
1773 if (param->sglen == 0)
1774 break;
1775 retval = 0;
1776 dev_info(&intf->dev,
1777 "TEST 10: queue %d control calls, %d times\n",
1778 param->sglen,
1779 param->iterations);
1780 retval = test_ctrl_queue (dev, param);
1781 break;
1782
1783 /* simple non-queued unlinks (ring with one urb) */
1784 case 11:
1785 if (dev->in_pipe == 0 || !param->length)
1786 break;
1787 retval = 0;
1788 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
1789 param->iterations, param->length);
1790 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1791 retval = unlink_simple (dev, dev->in_pipe,
1792 param->length);
1793 if (retval)
1794 dev_err(&intf->dev, "unlink reads failed %d, "
1795 "iterations left %d\n", retval, i);
1796 break;
1797 case 12:
1798 if (dev->out_pipe == 0 || !param->length)
1799 break;
1800 retval = 0;
1801 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
1802 param->iterations, param->length);
1803 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1804 retval = unlink_simple (dev, dev->out_pipe,
1805 param->length);
1806 if (retval)
1807 dev_err(&intf->dev, "unlink writes failed %d, "
1808 "iterations left %d\n", retval, i);
1809 break;
1810
1811 /* ep halt tests */
1812 case 13:
1813 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1814 break;
1815 retval = 0;
1816 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
1817 param->iterations);
1818 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1819 retval = halt_simple (dev);
1820
1821 if (retval)
1822 ERROR(dev, "halts failed, iterations left %d\n", i);
1823 break;
1824
1825 /* control write tests */
1826 case 14:
1827 if (!dev->info->ctrl_out)
1828 break;
1829 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1830 param->iterations,
1831 realworld ? 1 : 0, param->length,
1832 param->vary);
1833 retval = ctrl_out(dev, param->iterations,
1834 param->length, param->vary);
1835 break;
1836
1837 /* iso write tests */
1838 case 15:
1839 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1840 break;
1841 dev_info(&intf->dev,
1842 "TEST 15: write %d iso, %d entries of %d bytes\n",
1843 param->iterations,
1844 param->sglen, param->length);
1845 // FIRMWARE: iso sink
1846 retval = test_iso_queue (dev, param,
1847 dev->out_iso_pipe, dev->iso_out);
1848 break;
1849
1850 /* iso read tests */
1851 case 16:
1852 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1853 break;
1854 dev_info(&intf->dev,
1855 "TEST 16: read %d iso, %d entries of %d bytes\n",
1856 param->iterations,
1857 param->sglen, param->length);
1858 // FIRMWARE: iso source
1859 retval = test_iso_queue (dev, param,
1860 dev->in_iso_pipe, dev->iso_in);
1861 break;
1862
1863 // FIXME unlink from queue (ring with N urbs)
1864
1865 // FIXME scatterlist cancel (needs helper thread)
1866
1867 }
1868 do_gettimeofday (&param->duration);
1869 param->duration.tv_sec -= start.tv_sec;
1870 param->duration.tv_usec -= start.tv_usec;
1871 if (param->duration.tv_usec < 0) {
1872 param->duration.tv_usec += 1000 * 1000;
1873 param->duration.tv_sec -= 1;
1874 }
1875 mutex_unlock(&dev->lock);
1876 return retval;
1877 }
1878
1879 /*-------------------------------------------------------------------------*/
1880
1881 static unsigned force_interrupt = 0;
1882 module_param (force_interrupt, uint, 0);
1883 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1884
1885 #ifdef GENERIC
1886 static unsigned short vendor;
1887 module_param(vendor, ushort, 0);
1888 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1889
1890 static unsigned short product;
1891 module_param(product, ushort, 0);
1892 MODULE_PARM_DESC (product, "product code (from vendor)");
1893 #endif
1894
1895 static int
1896 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1897 {
1898 struct usb_device *udev;
1899 struct usbtest_dev *dev;
1900 struct usbtest_info *info;
1901 char *rtest, *wtest;
1902 char *irtest, *iwtest;
1903
1904 udev = interface_to_usbdev (intf);
1905
1906 #ifdef GENERIC
1907 /* specify devices by module parameters? */
1908 if (id->match_flags == 0) {
1909 /* vendor match required, product match optional */
1910 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1911 return -ENODEV;
1912 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1913 return -ENODEV;
1914 dev_info(&intf->dev, "matched module params, "
1915 "vend=0x%04x prod=0x%04x\n",
1916 le16_to_cpu(udev->descriptor.idVendor),
1917 le16_to_cpu(udev->descriptor.idProduct));
1918 }
1919 #endif
1920
1921 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1922 if (!dev)
1923 return -ENOMEM;
1924 info = (struct usbtest_info *) id->driver_info;
1925 dev->info = info;
1926 mutex_init(&dev->lock);
1927
1928 dev->intf = intf;
1929
1930 /* cacheline-aligned scratch for i/o */
1931 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) {
1932 kfree (dev);
1933 return -ENOMEM;
1934 }
1935
1936 /* NOTE this doesn't yet test the handful of difference that are
1937 * visible with high speed interrupts: bigger maxpacket (1K) and
1938 * "high bandwidth" modes (up to 3 packets/uframe).
1939 */
1940 rtest = wtest = "";
1941 irtest = iwtest = "";
1942 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1943 if (info->ep_in) {
1944 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1945 rtest = " intr-in";
1946 }
1947 if (info->ep_out) {
1948 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1949 wtest = " intr-out";
1950 }
1951 } else {
1952 if (info->autoconf) {
1953 int status;
1954
1955 status = get_endpoints (dev, intf);
1956 if (status < 0) {
1957 WARNING(dev, "couldn't get endpoints, %d\n",
1958 status);
1959 return status;
1960 }
1961 /* may find bulk or ISO pipes */
1962 } else {
1963 if (info->ep_in)
1964 dev->in_pipe = usb_rcvbulkpipe (udev,
1965 info->ep_in);
1966 if (info->ep_out)
1967 dev->out_pipe = usb_sndbulkpipe (udev,
1968 info->ep_out);
1969 }
1970 if (dev->in_pipe)
1971 rtest = " bulk-in";
1972 if (dev->out_pipe)
1973 wtest = " bulk-out";
1974 if (dev->in_iso_pipe)
1975 irtest = " iso-in";
1976 if (dev->out_iso_pipe)
1977 iwtest = " iso-out";
1978 }
1979
1980 usb_set_intfdata (intf, dev);
1981 dev_info (&intf->dev, "%s\n", info->name);
1982 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1983 ({ char *tmp;
1984 switch (udev->speed) {
1985 case USB_SPEED_LOW: tmp = "low"; break;
1986 case USB_SPEED_FULL: tmp = "full"; break;
1987 case USB_SPEED_HIGH: tmp = "high"; break;
1988 default: tmp = "unknown"; break;
1989 }; tmp; }),
1990 info->ctrl_out ? " in/out" : "",
1991 rtest, wtest,
1992 irtest, iwtest,
1993 info->alt >= 0 ? " (+alt)" : "");
1994 return 0;
1995 }
1996
1997 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
1998 {
1999 return 0;
2000 }
2001
2002 static int usbtest_resume (struct usb_interface *intf)
2003 {
2004 return 0;
2005 }
2006
2007
2008 static void usbtest_disconnect (struct usb_interface *intf)
2009 {
2010 struct usbtest_dev *dev = usb_get_intfdata (intf);
2011
2012 usb_set_intfdata (intf, NULL);
2013 dev_dbg (&intf->dev, "disconnect\n");
2014 kfree (dev);
2015 }
2016
2017 /* Basic testing only needs a device that can source or sink bulk traffic.
2018 * Any device can test control transfers (default with GENERIC binding).
2019 *
2020 * Several entries work with the default EP0 implementation that's built
2021 * into EZ-USB chips. There's a default vendor ID which can be overridden
2022 * by (very) small config EEPROMS, but otherwise all these devices act
2023 * identically until firmware is loaded: only EP0 works. It turns out
2024 * to be easy to make other endpoints work, without modifying that EP0
2025 * behavior. For now, we expect that kind of firmware.
2026 */
2027
2028 /* an21xx or fx versions of ez-usb */
2029 static struct usbtest_info ez1_info = {
2030 .name = "EZ-USB device",
2031 .ep_in = 2,
2032 .ep_out = 2,
2033 .alt = 1,
2034 };
2035
2036 /* fx2 version of ez-usb */
2037 static struct usbtest_info ez2_info = {
2038 .name = "FX2 device",
2039 .ep_in = 6,
2040 .ep_out = 2,
2041 .alt = 1,
2042 };
2043
2044 /* ezusb family device with dedicated usb test firmware,
2045 */
2046 static struct usbtest_info fw_info = {
2047 .name = "usb test device",
2048 .ep_in = 2,
2049 .ep_out = 2,
2050 .alt = 1,
2051 .autoconf = 1, // iso and ctrl_out need autoconf
2052 .ctrl_out = 1,
2053 .iso = 1, // iso_ep's are #8 in/out
2054 };
2055
2056 /* peripheral running Linux and 'zero.c' test firmware, or
2057 * its user-mode cousin. different versions of this use
2058 * different hardware with the same vendor/product codes.
2059 * host side MUST rely on the endpoint descriptors.
2060 */
2061 static struct usbtest_info gz_info = {
2062 .name = "Linux gadget zero",
2063 .autoconf = 1,
2064 .ctrl_out = 1,
2065 .alt = 0,
2066 };
2067
2068 static struct usbtest_info um_info = {
2069 .name = "Linux user mode test driver",
2070 .autoconf = 1,
2071 .alt = -1,
2072 };
2073
2074 static struct usbtest_info um2_info = {
2075 .name = "Linux user mode ISO test driver",
2076 .autoconf = 1,
2077 .iso = 1,
2078 .alt = -1,
2079 };
2080
2081 #ifdef IBOT2
2082 /* this is a nice source of high speed bulk data;
2083 * uses an FX2, with firmware provided in the device
2084 */
2085 static struct usbtest_info ibot2_info = {
2086 .name = "iBOT2 webcam",
2087 .ep_in = 2,
2088 .alt = -1,
2089 };
2090 #endif
2091
2092 #ifdef GENERIC
2093 /* we can use any device to test control traffic */
2094 static struct usbtest_info generic_info = {
2095 .name = "Generic USB device",
2096 .alt = -1,
2097 };
2098 #endif
2099
2100
2101 static struct usb_device_id id_table [] = {
2102
2103 /*-------------------------------------------------------------*/
2104
2105 /* EZ-USB devices which download firmware to replace (or in our
2106 * case augment) the default device implementation.
2107 */
2108
2109 /* generic EZ-USB FX controller */
2110 { USB_DEVICE (0x0547, 0x2235),
2111 .driver_info = (unsigned long) &ez1_info,
2112 },
2113
2114 /* CY3671 development board with EZ-USB FX */
2115 { USB_DEVICE (0x0547, 0x0080),
2116 .driver_info = (unsigned long) &ez1_info,
2117 },
2118
2119 /* generic EZ-USB FX2 controller (or development board) */
2120 { USB_DEVICE (0x04b4, 0x8613),
2121 .driver_info = (unsigned long) &ez2_info,
2122 },
2123
2124 /* re-enumerated usb test device firmware */
2125 { USB_DEVICE (0xfff0, 0xfff0),
2126 .driver_info = (unsigned long) &fw_info,
2127 },
2128
2129 /* "Gadget Zero" firmware runs under Linux */
2130 { USB_DEVICE (0x0525, 0xa4a0),
2131 .driver_info = (unsigned long) &gz_info,
2132 },
2133
2134 /* so does a user-mode variant */
2135 { USB_DEVICE (0x0525, 0xa4a4),
2136 .driver_info = (unsigned long) &um_info,
2137 },
2138
2139 /* ... and a user-mode variant that talks iso */
2140 { USB_DEVICE (0x0525, 0xa4a3),
2141 .driver_info = (unsigned long) &um2_info,
2142 },
2143
2144 #ifdef KEYSPAN_19Qi
2145 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2146 // this does not coexist with the real Keyspan 19qi driver!
2147 { USB_DEVICE (0x06cd, 0x010b),
2148 .driver_info = (unsigned long) &ez1_info,
2149 },
2150 #endif
2151
2152 /*-------------------------------------------------------------*/
2153
2154 #ifdef IBOT2
2155 /* iBOT2 makes a nice source of high speed bulk-in data */
2156 // this does not coexist with a real iBOT2 driver!
2157 { USB_DEVICE (0x0b62, 0x0059),
2158 .driver_info = (unsigned long) &ibot2_info,
2159 },
2160 #endif
2161
2162 /*-------------------------------------------------------------*/
2163
2164 #ifdef GENERIC
2165 /* module params can specify devices to use for control tests */
2166 { .driver_info = (unsigned long) &generic_info, },
2167 #endif
2168
2169 /*-------------------------------------------------------------*/
2170
2171 { }
2172 };
2173 MODULE_DEVICE_TABLE (usb, id_table);
2174
2175 static struct usb_driver usbtest_driver = {
2176 .name = "usbtest",
2177 .id_table = id_table,
2178 .probe = usbtest_probe,
2179 .ioctl = usbtest_ioctl,
2180 .disconnect = usbtest_disconnect,
2181 .suspend = usbtest_suspend,
2182 .resume = usbtest_resume,
2183 };
2184
2185 /*-------------------------------------------------------------------------*/
2186
2187 static int __init usbtest_init (void)
2188 {
2189 #ifdef GENERIC
2190 if (vendor)
2191 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2192 #endif
2193 return usb_register (&usbtest_driver);
2194 }
2195 module_init (usbtest_init);
2196
2197 static void __exit usbtest_exit (void)
2198 {
2199 usb_deregister (&usbtest_driver);
2200 }
2201 module_exit (usbtest_exit);
2202
2203 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2204 MODULE_LICENSE ("GPL");
2205
Support for the Chinese Samsung S3C2440 based development boards