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usb: r8a66597-hcd: Add support for SH7723 USB host
[linux-2.6/mini2440.git] / drivers / usb / misc / usbtest.c
blob054dedd2812718c1c1350acb058f983e1dda3331
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 WARN(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 if (bytes < 0)
196 return NULL;
197 urb = usb_alloc_urb (0, GFP_KERNEL);
198 if (!urb)
199 return urb;
200 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
201 urb->interval = (udev->speed == USB_SPEED_HIGH)
202 ? (INTERRUPT_RATE << 3)
203 : INTERRUPT_RATE;
204 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
205 if (usb_pipein (pipe))
206 urb->transfer_flags |= URB_SHORT_NOT_OK;
207 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
208 &urb->transfer_dma);
209 if (!urb->transfer_buffer) {
210 usb_free_urb (urb);
211 urb = NULL;
212 } else
213 memset (urb->transfer_buffer, 0, bytes);
214 return urb;
215 }
216
217 static unsigned pattern = 0;
218 module_param (pattern, uint, S_IRUGO);
219 MODULE_PARM_DESC(pattern, "i/o pattern (0 == zeroes)");
220
221 static inline void simple_fill_buf (struct urb *urb)
222 {
223 unsigned i;
224 u8 *buf = urb->transfer_buffer;
225 unsigned len = urb->transfer_buffer_length;
226
227 switch (pattern) {
228 default:
229 // FALLTHROUGH
230 case 0:
231 memset (buf, 0, len);
232 break;
233 case 1: /* mod63 */
234 for (i = 0; i < len; i++)
235 *buf++ = (u8) (i % 63);
236 break;
237 }
238 }
239
240 static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
241 {
242 unsigned i;
243 u8 expected;
244 u8 *buf = urb->transfer_buffer;
245 unsigned len = urb->actual_length;
246
247 for (i = 0; i < len; i++, buf++) {
248 switch (pattern) {
249 /* all-zeroes has no synchronization issues */
250 case 0:
251 expected = 0;
252 break;
253 /* mod63 stays in sync with short-terminated transfers,
254 * or otherwise when host and gadget agree on how large
255 * each usb transfer request should be. resync is done
256 * with set_interface or set_config.
257 */
258 case 1: /* mod63 */
259 expected = i % 63;
260 break;
261 /* always fail unsupported patterns */
262 default:
263 expected = !*buf;
264 break;
265 }
266 if (*buf == expected)
267 continue;
268 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
269 return -EINVAL;
270 }
271 return 0;
272 }
273
274 static void simple_free_urb (struct urb *urb)
275 {
276 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
277 urb->transfer_buffer, urb->transfer_dma);
278 usb_free_urb (urb);
279 }
280
281 static int simple_io (
282 struct usbtest_dev *tdev,
283 struct urb *urb,
284 int iterations,
285 int vary,
286 int expected,
287 const char *label
288 )
289 {
290 struct usb_device *udev = urb->dev;
291 int max = urb->transfer_buffer_length;
292 struct completion completion;
293 int retval = 0;
294
295 urb->context = &completion;
296 while (retval == 0 && iterations-- > 0) {
297 init_completion (&completion);
298 if (usb_pipeout (urb->pipe))
299 simple_fill_buf (urb);
300 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0)
301 break;
302
303 /* NOTE: no timeouts; can't be broken out of by interrupt */
304 wait_for_completion (&completion);
305 retval = urb->status;
306 urb->dev = udev;
307 if (retval == 0 && usb_pipein (urb->pipe))
308 retval = simple_check_buf(tdev, urb);
309
310 if (vary) {
311 int len = urb->transfer_buffer_length;
312
313 len += vary;
314 len %= max;
315 if (len == 0)
316 len = (vary < max) ? vary : max;
317 urb->transfer_buffer_length = len;
318 }
319
320 /* FIXME if endpoint halted, clear halt (and log) */
321 }
322 urb->transfer_buffer_length = max;
323
324 if (expected != retval)
325 dev_err(&udev->dev,
326 "%s failed, iterations left %d, status %d (not %d)\n",
327 label, iterations, retval, expected);
328 return retval;
329 }
330
331
332 /*-------------------------------------------------------------------------*/
333
334 /* We use scatterlist primitives to test queued I/O.
335 * Yes, this also tests the scatterlist primitives.
336 */
337
338 static void free_sglist (struct scatterlist *sg, int nents)
339 {
340 unsigned i;
341
342 if (!sg)
343 return;
344 for (i = 0; i < nents; i++) {
345 if (!sg_page(&sg[i]))
346 continue;
347 kfree (sg_virt(&sg[i]));
348 }
349 kfree (sg);
350 }
351
352 static struct scatterlist *
353 alloc_sglist (int nents, int max, int vary)
354 {
355 struct scatterlist *sg;
356 unsigned i;
357 unsigned size = max;
358
359 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL);
360 if (!sg)
361 return NULL;
362 sg_init_table(sg, nents);
363
364 for (i = 0; i < nents; i++) {
365 char *buf;
366 unsigned j;
367
368 buf = kzalloc (size, GFP_KERNEL);
369 if (!buf) {
370 free_sglist (sg, i);
371 return NULL;
372 }
373
374 /* kmalloc pages are always physically contiguous! */
375 sg_set_buf(&sg[i], buf, size);
376
377 switch (pattern) {
378 case 0:
379 /* already zeroed */
380 break;
381 case 1:
382 for (j = 0; j < size; j++)
383 *buf++ = (u8) (j % 63);
384 break;
385 }
386
387 if (vary) {
388 size += vary;
389 size %= max;
390 if (size == 0)
391 size = (vary < max) ? vary : max;
392 }
393 }
394
395 return sg;
396 }
397
398 static int perform_sglist (
399 struct usbtest_dev *tdev,
400 unsigned iterations,
401 int pipe,
402 struct usb_sg_request *req,
403 struct scatterlist *sg,
404 int nents
405 )
406 {
407 struct usb_device *udev = testdev_to_usbdev(tdev);
408 int retval = 0;
409
410 while (retval == 0 && iterations-- > 0) {
411 retval = usb_sg_init (req, udev, pipe,
412 (udev->speed == USB_SPEED_HIGH)
413 ? (INTERRUPT_RATE << 3)
414 : INTERRUPT_RATE,
415 sg, nents, 0, GFP_KERNEL);
416
417 if (retval)
418 break;
419 usb_sg_wait (req);
420 retval = req->status;
421
422 /* FIXME check resulting data pattern */
423
424 /* FIXME if endpoint halted, clear halt (and log) */
425 }
426
427 // FIXME for unlink or fault handling tests, don't report
428 // failure if retval is as we expected ...
429
430 if (retval)
431 ERROR(tdev, "perform_sglist failed, "
432 "iterations left %d, status %d\n",
433 iterations, retval);
434 return retval;
435 }
436
437
438 /*-------------------------------------------------------------------------*/
439
440 /* unqueued control message testing
441 *
442 * there's a nice set of device functional requirements in chapter 9 of the
443 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
444 * special test firmware.
445 *
446 * we know the device is configured (or suspended) by the time it's visible
447 * through usbfs. we can't change that, so we won't test enumeration (which
448 * worked 'well enough' to get here, this time), power management (ditto),
449 * or remote wakeup (which needs human interaction).
450 */
451
452 static unsigned realworld = 1;
453 module_param (realworld, uint, 0);
454 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
455
456 static int get_altsetting (struct usbtest_dev *dev)
457 {
458 struct usb_interface *iface = dev->intf;
459 struct usb_device *udev = interface_to_usbdev (iface);
460 int retval;
461
462 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
463 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
464 0, iface->altsetting [0].desc.bInterfaceNumber,
465 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
466 switch (retval) {
467 case 1:
468 return dev->buf [0];
469 case 0:
470 retval = -ERANGE;
471 // FALLTHROUGH
472 default:
473 return retval;
474 }
475 }
476
477 static int set_altsetting (struct usbtest_dev *dev, int alternate)
478 {
479 struct usb_interface *iface = dev->intf;
480 struct usb_device *udev;
481
482 if (alternate < 0 || alternate >= 256)
483 return -EINVAL;
484
485 udev = interface_to_usbdev (iface);
486 return usb_set_interface (udev,
487 iface->altsetting [0].desc.bInterfaceNumber,
488 alternate);
489 }
490
491 static int is_good_config(struct usbtest_dev *tdev, int len)
492 {
493 struct usb_config_descriptor *config;
494
495 if (len < sizeof *config)
496 return 0;
497 config = (struct usb_config_descriptor *) tdev->buf;
498
499 switch (config->bDescriptorType) {
500 case USB_DT_CONFIG:
501 case USB_DT_OTHER_SPEED_CONFIG:
502 if (config->bLength != 9) {
503 ERROR(tdev, "bogus config descriptor length\n");
504 return 0;
505 }
506 /* this bit 'must be 1' but often isn't */
507 if (!realworld && !(config->bmAttributes & 0x80)) {
508 ERROR(tdev, "high bit of config attributes not set\n");
509 return 0;
510 }
511 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
512 ERROR(tdev, "reserved config bits set\n");
513 return 0;
514 }
515 break;
516 default:
517 return 0;
518 }
519
520 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
521 return 1;
522 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
523 return 1;
524 ERROR(tdev, "bogus config descriptor read size\n");
525 return 0;
526 }
527
528 /* sanity test for standard requests working with usb_control_mesg() and some
529 * of the utility functions which use it.
530 *
531 * this doesn't test how endpoint halts behave or data toggles get set, since
532 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
533 * halt or toggle). toggle testing is impractical without support from hcds.
534 *
535 * this avoids failing devices linux would normally work with, by not testing
536 * config/altsetting operations for devices that only support their defaults.
537 * such devices rarely support those needless operations.
538 *
539 * NOTE that since this is a sanity test, it's not examining boundary cases
540 * to see if usbcore, hcd, and device all behave right. such testing would
541 * involve varied read sizes and other operation sequences.
542 */
543 static int ch9_postconfig (struct usbtest_dev *dev)
544 {
545 struct usb_interface *iface = dev->intf;
546 struct usb_device *udev = interface_to_usbdev (iface);
547 int i, alt, retval;
548
549 /* [9.2.3] if there's more than one altsetting, we need to be able to
550 * set and get each one. mostly trusts the descriptors from usbcore.
551 */
552 for (i = 0; i < iface->num_altsetting; i++) {
553
554 /* 9.2.3 constrains the range here */
555 alt = iface->altsetting [i].desc.bAlternateSetting;
556 if (alt < 0 || alt >= iface->num_altsetting) {
557 dev_err(&iface->dev,
558 "invalid alt [%d].bAltSetting = %d\n",
559 i, alt);
560 }
561
562 /* [real world] get/set unimplemented if there's only one */
563 if (realworld && iface->num_altsetting == 1)
564 continue;
565
566 /* [9.4.10] set_interface */
567 retval = set_altsetting (dev, alt);
568 if (retval) {
569 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
570 alt, retval);
571 return retval;
572 }
573
574 /* [9.4.4] get_interface always works */
575 retval = get_altsetting (dev);
576 if (retval != alt) {
577 dev_err(&iface->dev, "get alt should be %d, was %d\n",
578 alt, retval);
579 return (retval < 0) ? retval : -EDOM;
580 }
581
582 }
583
584 /* [real world] get_config unimplemented if there's only one */
585 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
586 int expected = udev->actconfig->desc.bConfigurationValue;
587
588 /* [9.4.2] get_configuration always works
589 * ... although some cheap devices (like one TI Hub I've got)
590 * won't return config descriptors except before set_config.
591 */
592 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
593 USB_REQ_GET_CONFIGURATION,
594 USB_DIR_IN | USB_RECIP_DEVICE,
595 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
596 if (retval != 1 || dev->buf [0] != expected) {
597 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
598 retval, dev->buf[0], expected);
599 return (retval < 0) ? retval : -EDOM;
600 }
601 }
602
603 /* there's always [9.4.3] a device descriptor [9.6.1] */
604 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
605 dev->buf, sizeof udev->descriptor);
606 if (retval != sizeof udev->descriptor) {
607 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
608 return (retval < 0) ? retval : -EDOM;
609 }
610
611 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
612 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
613 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
614 dev->buf, TBUF_SIZE);
615 if (!is_good_config(dev, retval)) {
616 dev_err(&iface->dev,
617 "config [%d] descriptor --> %d\n",
618 i, retval);
619 return (retval < 0) ? retval : -EDOM;
620 }
621
622 // FIXME cross-checking udev->config[i] to make sure usbcore
623 // parsed it right (etc) would be good testing paranoia
624 }
625
626 /* and sometimes [9.2.6.6] speed dependent descriptors */
627 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
628 struct usb_qualifier_descriptor *d = NULL;
629
630 /* device qualifier [9.6.2] */
631 retval = usb_get_descriptor (udev,
632 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
633 sizeof (struct usb_qualifier_descriptor));
634 if (retval == -EPIPE) {
635 if (udev->speed == USB_SPEED_HIGH) {
636 dev_err(&iface->dev,
637 "hs dev qualifier --> %d\n",
638 retval);
639 return (retval < 0) ? retval : -EDOM;
640 }
641 /* usb2.0 but not high-speed capable; fine */
642 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
643 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
644 return (retval < 0) ? retval : -EDOM;
645 } else
646 d = (struct usb_qualifier_descriptor *) dev->buf;
647
648 /* might not have [9.6.2] any other-speed configs [9.6.4] */
649 if (d) {
650 unsigned max = d->bNumConfigurations;
651 for (i = 0; i < max; i++) {
652 retval = usb_get_descriptor (udev,
653 USB_DT_OTHER_SPEED_CONFIG, i,
654 dev->buf, TBUF_SIZE);
655 if (!is_good_config(dev, retval)) {
656 dev_err(&iface->dev,
657 "other speed config --> %d\n",
658 retval);
659 return (retval < 0) ? retval : -EDOM;
660 }
661 }
662 }
663 }
664 // FIXME fetch strings from at least the device descriptor
665
666 /* [9.4.5] get_status always works */
667 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
668 if (retval != 2) {
669 dev_err(&iface->dev, "get dev status --> %d\n", retval);
670 return (retval < 0) ? retval : -EDOM;
671 }
672
673 // FIXME configuration.bmAttributes says if we could try to set/clear
674 // the device's remote wakeup feature ... if we can, test that here
675
676 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
677 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
678 if (retval != 2) {
679 dev_err(&iface->dev, "get interface status --> %d\n", retval);
680 return (retval < 0) ? retval : -EDOM;
681 }
682 // FIXME get status for each endpoint in the interface
683
684 return 0;
685 }
686
687 /*-------------------------------------------------------------------------*/
688
689 /* use ch9 requests to test whether:
690 * (a) queues work for control, keeping N subtests queued and
691 * active (auto-resubmit) for M loops through the queue.
692 * (b) protocol stalls (control-only) will autorecover.
693 * it's not like bulk/intr; no halt clearing.
694 * (c) short control reads are reported and handled.
695 * (d) queues are always processed in-order
696 */
697
698 struct ctrl_ctx {
699 spinlock_t lock;
700 struct usbtest_dev *dev;
701 struct completion complete;
702 unsigned count;
703 unsigned pending;
704 int status;
705 struct urb **urb;
706 struct usbtest_param *param;
707 int last;
708 };
709
710 #define NUM_SUBCASES 15 /* how many test subcases here? */
711
712 struct subcase {
713 struct usb_ctrlrequest setup;
714 int number;
715 int expected;
716 };
717
718 static void ctrl_complete (struct urb *urb)
719 {
720 struct ctrl_ctx *ctx = urb->context;
721 struct usb_ctrlrequest *reqp;
722 struct subcase *subcase;
723 int status = urb->status;
724
725 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
726 subcase = container_of (reqp, struct subcase, setup);
727
728 spin_lock (&ctx->lock);
729 ctx->count--;
730 ctx->pending--;
731
732 /* queue must transfer and complete in fifo order, unless
733 * usb_unlink_urb() is used to unlink something not at the
734 * physical queue head (not tested).
735 */
736 if (subcase->number > 0) {
737 if ((subcase->number - ctx->last) != 1) {
738 ERROR(ctx->dev,
739 "subcase %d completed out of order, last %d\n",
740 subcase->number, ctx->last);
741 status = -EDOM;
742 ctx->last = subcase->number;
743 goto error;
744 }
745 }
746 ctx->last = subcase->number;
747
748 /* succeed or fault in only one way? */
749 if (status == subcase->expected)
750 status = 0;
751
752 /* async unlink for cleanup? */
753 else if (status != -ECONNRESET) {
754
755 /* some faults are allowed, not required */
756 if (subcase->expected > 0 && (
757 ((status == -subcase->expected /* happened */
758 || status == 0)))) /* didn't */
759 status = 0;
760 /* sometimes more than one fault is allowed */
761 else if (subcase->number == 12 && status == -EPIPE)
762 status = 0;
763 else
764 ERROR(ctx->dev, "subtest %d error, status %d\n",
765 subcase->number, status);
766 }
767
768 /* unexpected status codes mean errors; ideally, in hardware */
769 if (status) {
770 error:
771 if (ctx->status == 0) {
772 int i;
773
774 ctx->status = status;
775 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
776 "%d left, subcase %d, len %d/%d\n",
777 reqp->bRequestType, reqp->bRequest,
778 status, ctx->count, subcase->number,
779 urb->actual_length,
780 urb->transfer_buffer_length);
781
782 /* FIXME this "unlink everything" exit route should
783 * be a separate test case.
784 */
785
786 /* unlink whatever's still pending */
787 for (i = 1; i < ctx->param->sglen; i++) {
788 struct urb *u = ctx->urb [
789 (i + subcase->number)
790 % ctx->param->sglen];
791
792 if (u == urb || !u->dev)
793 continue;
794 spin_unlock(&ctx->lock);
795 status = usb_unlink_urb (u);
796 spin_lock(&ctx->lock);
797 switch (status) {
798 case -EINPROGRESS:
799 case -EBUSY:
800 case -EIDRM:
801 continue;
802 default:
803 ERROR(ctx->dev, "urb unlink --> %d\n",
804 status);
805 }
806 }
807 status = ctx->status;
808 }
809 }
810
811 /* resubmit if we need to, else mark this as done */
812 if ((status == 0) && (ctx->pending < ctx->count)) {
813 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) {
814 ERROR(ctx->dev,
815 "can't resubmit ctrl %02x.%02x, err %d\n",
816 reqp->bRequestType, reqp->bRequest, status);
817 urb->dev = NULL;
818 } else
819 ctx->pending++;
820 } else
821 urb->dev = NULL;
822
823 /* signal completion when nothing's queued */
824 if (ctx->pending == 0)
825 complete (&ctx->complete);
826 spin_unlock (&ctx->lock);
827 }
828
829 static int
830 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
831 {
832 struct usb_device *udev = testdev_to_usbdev (dev);
833 struct urb **urb;
834 struct ctrl_ctx context;
835 int i;
836
837 spin_lock_init (&context.lock);
838 context.dev = dev;
839 init_completion (&context.complete);
840 context.count = param->sglen * param->iterations;
841 context.pending = 0;
842 context.status = -ENOMEM;
843 context.param = param;
844 context.last = -1;
845
846 /* allocate and init the urbs we'll queue.
847 * as with bulk/intr sglists, sglen is the queue depth; it also
848 * controls which subtests run (more tests than sglen) or rerun.
849 */
850 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
851 if (!urb)
852 return -ENOMEM;
853 for (i = 0; i < param->sglen; i++) {
854 int pipe = usb_rcvctrlpipe (udev, 0);
855 unsigned len;
856 struct urb *u;
857 struct usb_ctrlrequest req;
858 struct subcase *reqp;
859
860 /* sign of this variable means:
861 * -: tested code must return this (negative) error code
862 * +: tested code may return this (negative too) error code
863 */
864 int expected = 0;
865
866 /* requests here are mostly expected to succeed on any
867 * device, but some are chosen to trigger protocol stalls
868 * or short reads.
869 */
870 memset (&req, 0, sizeof req);
871 req.bRequest = USB_REQ_GET_DESCRIPTOR;
872 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
873
874 switch (i % NUM_SUBCASES) {
875 case 0: // get device descriptor
876 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
877 len = sizeof (struct usb_device_descriptor);
878 break;
879 case 1: // get first config descriptor (only)
880 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
881 len = sizeof (struct usb_config_descriptor);
882 break;
883 case 2: // get altsetting (OFTEN STALLS)
884 req.bRequest = USB_REQ_GET_INTERFACE;
885 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
886 // index = 0 means first interface
887 len = 1;
888 expected = EPIPE;
889 break;
890 case 3: // get interface status
891 req.bRequest = USB_REQ_GET_STATUS;
892 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
893 // interface 0
894 len = 2;
895 break;
896 case 4: // get device status
897 req.bRequest = USB_REQ_GET_STATUS;
898 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
899 len = 2;
900 break;
901 case 5: // get device qualifier (MAY STALL)
902 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
903 len = sizeof (struct usb_qualifier_descriptor);
904 if (udev->speed != USB_SPEED_HIGH)
905 expected = EPIPE;
906 break;
907 case 6: // get first config descriptor, plus interface
908 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
909 len = sizeof (struct usb_config_descriptor);
910 len += sizeof (struct usb_interface_descriptor);
911 break;
912 case 7: // get interface descriptor (ALWAYS STALLS)
913 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
914 // interface == 0
915 len = sizeof (struct usb_interface_descriptor);
916 expected = -EPIPE;
917 break;
918 // NOTE: two consecutive stalls in the queue here.
919 // that tests fault recovery a bit more aggressively.
920 case 8: // clear endpoint halt (MAY STALL)
921 req.bRequest = USB_REQ_CLEAR_FEATURE;
922 req.bRequestType = USB_RECIP_ENDPOINT;
923 // wValue 0 == ep halt
924 // wIndex 0 == ep0 (shouldn't halt!)
925 len = 0;
926 pipe = usb_sndctrlpipe (udev, 0);
927 expected = EPIPE;
928 break;
929 case 9: // get endpoint status
930 req.bRequest = USB_REQ_GET_STATUS;
931 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
932 // endpoint 0
933 len = 2;
934 break;
935 case 10: // trigger short read (EREMOTEIO)
936 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
937 len = 1024;
938 expected = -EREMOTEIO;
939 break;
940 // NOTE: two consecutive _different_ faults in the queue.
941 case 11: // get endpoint descriptor (ALWAYS STALLS)
942 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
943 // endpoint == 0
944 len = sizeof (struct usb_interface_descriptor);
945 expected = EPIPE;
946 break;
947 // NOTE: sometimes even a third fault in the queue!
948 case 12: // get string 0 descriptor (MAY STALL)
949 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
950 // string == 0, for language IDs
951 len = sizeof (struct usb_interface_descriptor);
952 // may succeed when > 4 languages
953 expected = EREMOTEIO; // or EPIPE, if no strings
954 break;
955 case 13: // short read, resembling case 10
956 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
957 // last data packet "should" be DATA1, not DATA0
958 len = 1024 - udev->descriptor.bMaxPacketSize0;
959 expected = -EREMOTEIO;
960 break;
961 case 14: // short read; try to fill the last packet
962 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
963 /* device descriptor size == 18 bytes */
964 len = udev->descriptor.bMaxPacketSize0;
965 switch (len) {
966 case 8: len = 24; break;
967 case 16: len = 32; break;
968 }
969 expected = -EREMOTEIO;
970 break;
971 default:
972 ERROR(dev, "bogus number of ctrl queue testcases!\n");
973 context.status = -EINVAL;
974 goto cleanup;
975 }
976 req.wLength = cpu_to_le16 (len);
977 urb [i] = u = simple_alloc_urb (udev, pipe, len);
978 if (!u)
979 goto cleanup;
980
981 reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL,
982 &u->setup_dma);
983 if (!reqp)
984 goto cleanup;
985 reqp->setup = req;
986 reqp->number = i % NUM_SUBCASES;
987 reqp->expected = expected;
988 u->setup_packet = (char *) &reqp->setup;
989 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
990
991 u->context = &context;
992 u->complete = ctrl_complete;
993 }
994
995 /* queue the urbs */
996 context.urb = urb;
997 spin_lock_irq (&context.lock);
998 for (i = 0; i < param->sglen; i++) {
999 context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
1000 if (context.status != 0) {
1001 ERROR(dev, "can't submit urb[%d], status %d\n",
1002 i, context.status);
1003 context.count = context.pending;
1004 break;
1005 }
1006 context.pending++;
1007 }
1008 spin_unlock_irq (&context.lock);
1009
1010 /* FIXME set timer and time out; provide a disconnect hook */
1011
1012 /* wait for the last one to complete */
1013 if (context.pending > 0)
1014 wait_for_completion (&context.complete);
1015
1016 cleanup:
1017 for (i = 0; i < param->sglen; i++) {
1018 if (!urb [i])
1019 continue;
1020 urb [i]->dev = udev;
1021 if (urb [i]->setup_packet)
1022 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1023 urb [i]->setup_packet,
1024 urb [i]->setup_dma);
1025 simple_free_urb (urb [i]);
1026 }
1027 kfree (urb);
1028 return context.status;
1029 }
1030 #undef NUM_SUBCASES
1031
1032
1033 /*-------------------------------------------------------------------------*/
1034
1035 static void unlink1_callback (struct urb *urb)
1036 {
1037 int status = urb->status;
1038
1039 // we "know" -EPIPE (stall) never happens
1040 if (!status)
1041 status = usb_submit_urb (urb, GFP_ATOMIC);
1042 if (status) {
1043 urb->status = status;
1044 complete(urb->context);
1045 }
1046 }
1047
1048 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1049 {
1050 struct urb *urb;
1051 struct completion completion;
1052 int retval = 0;
1053
1054 init_completion (&completion);
1055 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1056 if (!urb)
1057 return -ENOMEM;
1058 urb->context = &completion;
1059 urb->complete = unlink1_callback;
1060
1061 /* keep the endpoint busy. there are lots of hc/hcd-internal
1062 * states, and testing should get to all of them over time.
1063 *
1064 * FIXME want additional tests for when endpoint is STALLing
1065 * due to errors, or is just NAKing requests.
1066 */
1067 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) {
1068 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1069 return retval;
1070 }
1071
1072 /* unlinking that should always work. variable delay tests more
1073 * hcd states and code paths, even with little other system load.
1074 */
1075 msleep (jiffies % (2 * INTERRUPT_RATE));
1076 if (async) {
1077 retry:
1078 retval = usb_unlink_urb (urb);
1079 if (retval == -EBUSY || retval == -EIDRM) {
1080 /* we can't unlink urbs while they're completing.
1081 * or if they've completed, and we haven't resubmitted.
1082 * "normal" drivers would prevent resubmission, but
1083 * since we're testing unlink paths, we can't.
1084 */
1085 ERROR(dev, "unlink retry\n");
1086 goto retry;
1087 }
1088 } else
1089 usb_kill_urb (urb);
1090 if (!(retval == 0 || retval == -EINPROGRESS)) {
1091 dev_err(&dev->intf->dev, "unlink fail %d\n", retval);
1092 return retval;
1093 }
1094
1095 wait_for_completion (&completion);
1096 retval = urb->status;
1097 simple_free_urb (urb);
1098
1099 if (async)
1100 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1101 else
1102 return (retval == -ENOENT || retval == -EPERM) ?
1103 0 : retval - 2000;
1104 }
1105
1106 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1107 {
1108 int retval = 0;
1109
1110 /* test sync and async paths */
1111 retval = unlink1 (dev, pipe, len, 1);
1112 if (!retval)
1113 retval = unlink1 (dev, pipe, len, 0);
1114 return retval;
1115 }
1116
1117 /*-------------------------------------------------------------------------*/
1118
1119 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1120 {
1121 int retval;
1122 u16 status;
1123
1124 /* shouldn't look or act halted */
1125 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1126 if (retval < 0) {
1127 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1128 ep, retval);
1129 return retval;
1130 }
1131 if (status != 0) {
1132 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1133 return -EINVAL;
1134 }
1135 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1136 if (retval != 0)
1137 return -EINVAL;
1138 return 0;
1139 }
1140
1141 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1142 {
1143 int retval;
1144 u16 status;
1145
1146 /* should look and act halted */
1147 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1148 if (retval < 0) {
1149 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1150 ep, retval);
1151 return retval;
1152 }
1153 le16_to_cpus(&status);
1154 if (status != 1) {
1155 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1156 return -EINVAL;
1157 }
1158 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1159 if (retval != -EPIPE)
1160 return -EINVAL;
1161 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1162 if (retval != -EPIPE)
1163 return -EINVAL;
1164 return 0;
1165 }
1166
1167 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1168 {
1169 int retval;
1170
1171 /* shouldn't look or act halted now */
1172 retval = verify_not_halted(tdev, ep, urb);
1173 if (retval < 0)
1174 return retval;
1175
1176 /* set halt (protocol test only), verify it worked */
1177 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1178 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1179 USB_ENDPOINT_HALT, ep,
1180 NULL, 0, USB_CTRL_SET_TIMEOUT);
1181 if (retval < 0) {
1182 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1183 return retval;
1184 }
1185 retval = verify_halted(tdev, ep, urb);
1186 if (retval < 0)
1187 return retval;
1188
1189 /* clear halt (tests API + protocol), verify it worked */
1190 retval = usb_clear_halt (urb->dev, urb->pipe);
1191 if (retval < 0) {
1192 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1193 return retval;
1194 }
1195 retval = verify_not_halted(tdev, ep, urb);
1196 if (retval < 0)
1197 return retval;
1198
1199 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1200
1201 return 0;
1202 }
1203
1204 static int halt_simple (struct usbtest_dev *dev)
1205 {
1206 int ep;
1207 int retval = 0;
1208 struct urb *urb;
1209
1210 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1211 if (urb == NULL)
1212 return -ENOMEM;
1213
1214 if (dev->in_pipe) {
1215 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1216 urb->pipe = dev->in_pipe;
1217 retval = test_halt(dev, ep, urb);
1218 if (retval < 0)
1219 goto done;
1220 }
1221
1222 if (dev->out_pipe) {
1223 ep = usb_pipeendpoint (dev->out_pipe);
1224 urb->pipe = dev->out_pipe;
1225 retval = test_halt(dev, ep, urb);
1226 }
1227 done:
1228 simple_free_urb (urb);
1229 return retval;
1230 }
1231
1232 /*-------------------------------------------------------------------------*/
1233
1234 /* Control OUT tests use the vendor control requests from Intel's
1235 * USB 2.0 compliance test device: write a buffer, read it back.
1236 *
1237 * Intel's spec only _requires_ that it work for one packet, which
1238 * is pretty weak. Some HCDs place limits here; most devices will
1239 * need to be able to handle more than one OUT data packet. We'll
1240 * try whatever we're told to try.
1241 */
1242 static int ctrl_out (struct usbtest_dev *dev,
1243 unsigned count, unsigned length, unsigned vary)
1244 {
1245 unsigned i, j, len;
1246 int retval;
1247 u8 *buf;
1248 char *what = "?";
1249 struct usb_device *udev;
1250
1251 if (length < 1 || length > 0xffff || vary >= length)
1252 return -EINVAL;
1253
1254 buf = kmalloc(length, GFP_KERNEL);
1255 if (!buf)
1256 return -ENOMEM;
1257
1258 udev = testdev_to_usbdev (dev);
1259 len = length;
1260 retval = 0;
1261
1262 /* NOTE: hardware might well act differently if we pushed it
1263 * with lots back-to-back queued requests.
1264 */
1265 for (i = 0; i < count; i++) {
1266 /* write patterned data */
1267 for (j = 0; j < len; j++)
1268 buf [j] = i + j;
1269 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1270 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1271 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1272 if (retval != len) {
1273 what = "write";
1274 if (retval >= 0) {
1275 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1276 retval, len);
1277 retval = -EBADMSG;
1278 }
1279 break;
1280 }
1281
1282 /* read it back -- assuming nothing intervened!! */
1283 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1284 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1285 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1286 if (retval != len) {
1287 what = "read";
1288 if (retval >= 0) {
1289 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1290 retval, len);
1291 retval = -EBADMSG;
1292 }
1293 break;
1294 }
1295
1296 /* fail if we can't verify */
1297 for (j = 0; j < len; j++) {
1298 if (buf [j] != (u8) (i + j)) {
1299 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1300 j, buf [j], (u8) i + j);
1301 retval = -EBADMSG;
1302 break;
1303 }
1304 }
1305 if (retval < 0) {
1306 what = "verify";
1307 break;
1308 }
1309
1310 len += vary;
1311
1312 /* [real world] the "zero bytes IN" case isn't really used.
1313 * hardware can easily trip up in this weird case, since its
1314 * status stage is IN, not OUT like other ep0in transfers.
1315 */
1316 if (len > length)
1317 len = realworld ? 1 : 0;
1318 }
1319
1320 if (retval < 0)
1321 ERROR (dev, "ctrl_out %s failed, code %d, count %d\n",
1322 what, retval, i);
1323
1324 kfree (buf);
1325 return retval;
1326 }
1327
1328 /*-------------------------------------------------------------------------*/
1329
1330 /* ISO tests ... mimics common usage
1331 * - buffer length is split into N packets (mostly maxpacket sized)
1332 * - multi-buffers according to sglen
1333 */
1334
1335 struct iso_context {
1336 unsigned count;
1337 unsigned pending;
1338 spinlock_t lock;
1339 struct completion done;
1340 int submit_error;
1341 unsigned long errors;
1342 unsigned long packet_count;
1343 struct usbtest_dev *dev;
1344 };
1345
1346 static void iso_callback (struct urb *urb)
1347 {
1348 struct iso_context *ctx = urb->context;
1349
1350 spin_lock(&ctx->lock);
1351 ctx->count--;
1352
1353 ctx->packet_count += urb->number_of_packets;
1354 if (urb->error_count > 0)
1355 ctx->errors += urb->error_count;
1356 else if (urb->status != 0)
1357 ctx->errors += urb->number_of_packets;
1358
1359 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1360 && !ctx->submit_error) {
1361 int status = usb_submit_urb (urb, GFP_ATOMIC);
1362 switch (status) {
1363 case 0:
1364 goto done;
1365 default:
1366 dev_err(&ctx->dev->intf->dev,
1367 "iso resubmit err %d\n",
1368 status);
1369 /* FALLTHROUGH */
1370 case -ENODEV: /* disconnected */
1371 case -ESHUTDOWN: /* endpoint disabled */
1372 ctx->submit_error = 1;
1373 break;
1374 }
1375 }
1376 simple_free_urb (urb);
1377
1378 ctx->pending--;
1379 if (ctx->pending == 0) {
1380 if (ctx->errors)
1381 dev_err(&ctx->dev->intf->dev,
1382 "iso test, %lu errors out of %lu\n",
1383 ctx->errors, ctx->packet_count);
1384 complete (&ctx->done);
1385 }
1386 done:
1387 spin_unlock(&ctx->lock);
1388 }
1389
1390 static struct urb *iso_alloc_urb (
1391 struct usb_device *udev,
1392 int pipe,
1393 struct usb_endpoint_descriptor *desc,
1394 long bytes
1395 )
1396 {
1397 struct urb *urb;
1398 unsigned i, maxp, packets;
1399
1400 if (bytes < 0 || !desc)
1401 return NULL;
1402 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1403 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1404 packets = DIV_ROUND_UP(bytes, maxp);
1405
1406 urb = usb_alloc_urb (packets, GFP_KERNEL);
1407 if (!urb)
1408 return urb;
1409 urb->dev = udev;
1410 urb->pipe = pipe;
1411
1412 urb->number_of_packets = packets;
1413 urb->transfer_buffer_length = bytes;
1414 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
1415 &urb->transfer_dma);
1416 if (!urb->transfer_buffer) {
1417 usb_free_urb (urb);
1418 return NULL;
1419 }
1420 memset (urb->transfer_buffer, 0, bytes);
1421 for (i = 0; i < packets; i++) {
1422 /* here, only the last packet will be short */
1423 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1424 bytes -= urb->iso_frame_desc[i].length;
1425
1426 urb->iso_frame_desc[i].offset = maxp * i;
1427 }
1428
1429 urb->complete = iso_callback;
1430 // urb->context = SET BY CALLER
1431 urb->interval = 1 << (desc->bInterval - 1);
1432 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1433 return urb;
1434 }
1435
1436 static int
1437 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1438 int pipe, struct usb_endpoint_descriptor *desc)
1439 {
1440 struct iso_context context;
1441 struct usb_device *udev;
1442 unsigned i;
1443 unsigned long packets = 0;
1444 int status = 0;
1445 struct urb *urbs[10]; /* FIXME no limit */
1446
1447 if (param->sglen > 10)
1448 return -EDOM;
1449
1450 memset(&context, 0, sizeof context);
1451 context.count = param->iterations * param->sglen;
1452 context.dev = dev;
1453 init_completion (&context.done);
1454 spin_lock_init (&context.lock);
1455
1456 memset (urbs, 0, sizeof urbs);
1457 udev = testdev_to_usbdev (dev);
1458 dev_info(&dev->intf->dev,
1459 "... iso period %d %sframes, wMaxPacket %04x\n",
1460 1 << (desc->bInterval - 1),
1461 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1462 le16_to_cpu(desc->wMaxPacketSize));
1463
1464 for (i = 0; i < param->sglen; i++) {
1465 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1466 param->length);
1467 if (!urbs [i]) {
1468 status = -ENOMEM;
1469 goto fail;
1470 }
1471 packets += urbs[i]->number_of_packets;
1472 urbs [i]->context = &context;
1473 }
1474 packets *= param->iterations;
1475 dev_info(&dev->intf->dev,
1476 "... total %lu msec (%lu packets)\n",
1477 (packets * (1 << (desc->bInterval - 1)))
1478 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1479 packets);
1480
1481 spin_lock_irq (&context.lock);
1482 for (i = 0; i < param->sglen; i++) {
1483 ++context.pending;
1484 status = usb_submit_urb (urbs [i], GFP_ATOMIC);
1485 if (status < 0) {
1486 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1487 if (i == 0) {
1488 spin_unlock_irq (&context.lock);
1489 goto fail;
1490 }
1491
1492 simple_free_urb (urbs [i]);
1493 context.pending--;
1494 context.submit_error = 1;
1495 break;
1496 }
1497 }
1498 spin_unlock_irq (&context.lock);
1499
1500 wait_for_completion (&context.done);
1501
1502 /*
1503 * Isochronous transfers are expected to fail sometimes. As an
1504 * arbitrary limit, we will report an error if any submissions
1505 * fail or if the transfer failure rate is > 10%.
1506 */
1507 if (status != 0)
1508 ;
1509 else if (context.submit_error)
1510 status = -EACCES;
1511 else if (context.errors > context.packet_count / 10)
1512 status = -EIO;
1513 return status;
1514
1515 fail:
1516 for (i = 0; i < param->sglen; i++) {
1517 if (urbs [i])
1518 simple_free_urb (urbs [i]);
1519 }
1520 return status;
1521 }
1522
1523 /*-------------------------------------------------------------------------*/
1524
1525 /* We only have this one interface to user space, through usbfs.
1526 * User mode code can scan usbfs to find N different devices (maybe on
1527 * different busses) to use when testing, and allocate one thread per
1528 * test. So discovery is simplified, and we have no device naming issues.
1529 *
1530 * Don't use these only as stress/load tests. Use them along with with
1531 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1532 * video capture, and so on. Run different tests at different times, in
1533 * different sequences. Nothing here should interact with other devices,
1534 * except indirectly by consuming USB bandwidth and CPU resources for test
1535 * threads and request completion. But the only way to know that for sure
1536 * is to test when HC queues are in use by many devices.
1537 *
1538 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
1539 * it locks out usbcore in certain code paths. Notably, if you disconnect
1540 * the device-under-test, khubd will wait block forever waiting for the
1541 * ioctl to complete ... so that usb_disconnect() can abort the pending
1542 * urbs and then call usbtest_disconnect(). To abort a test, you're best
1543 * off just killing the userspace task and waiting for it to exit.
1544 */
1545
1546 static int
1547 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1548 {
1549 struct usbtest_dev *dev = usb_get_intfdata (intf);
1550 struct usb_device *udev = testdev_to_usbdev (dev);
1551 struct usbtest_param *param = buf;
1552 int retval = -EOPNOTSUPP;
1553 struct urb *urb;
1554 struct scatterlist *sg;
1555 struct usb_sg_request req;
1556 struct timeval start;
1557 unsigned i;
1558
1559 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1560
1561 if (code != USBTEST_REQUEST)
1562 return -EOPNOTSUPP;
1563
1564 if (param->iterations <= 0 || param->length < 0
1565 || param->sglen < 0 || param->vary < 0)
1566 return -EINVAL;
1567
1568 if (mutex_lock_interruptible(&dev->lock))
1569 return -ERESTARTSYS;
1570
1571 /* FIXME: What if a system sleep starts while a test is running? */
1572 if (!intf->is_active) {
1573 mutex_unlock(&dev->lock);
1574 return -EHOSTUNREACH;
1575 }
1576
1577 /* some devices, like ez-usb default devices, need a non-default
1578 * altsetting to have any active endpoints. some tests change
1579 * altsettings; force a default so most tests don't need to check.
1580 */
1581 if (dev->info->alt >= 0) {
1582 int res;
1583
1584 if (intf->altsetting->desc.bInterfaceNumber) {
1585 mutex_unlock(&dev->lock);
1586 return -ENODEV;
1587 }
1588 res = set_altsetting (dev, dev->info->alt);
1589 if (res) {
1590 dev_err (&intf->dev,
1591 "set altsetting to %d failed, %d\n",
1592 dev->info->alt, res);
1593 mutex_unlock(&dev->lock);
1594 return res;
1595 }
1596 }
1597
1598 /*
1599 * Just a bunch of test cases that every HCD is expected to handle.
1600 *
1601 * Some may need specific firmware, though it'd be good to have
1602 * one firmware image to handle all the test cases.
1603 *
1604 * FIXME add more tests! cancel requests, verify the data, control
1605 * queueing, concurrent read+write threads, and so on.
1606 */
1607 do_gettimeofday (&start);
1608 switch (param->test_num) {
1609
1610 case 0:
1611 dev_info(&intf->dev, "TEST 0: NOP\n");
1612 retval = 0;
1613 break;
1614
1615 /* Simple non-queued bulk I/O tests */
1616 case 1:
1617 if (dev->out_pipe == 0)
1618 break;
1619 dev_info(&intf->dev,
1620 "TEST 1: write %d bytes %u times\n",
1621 param->length, param->iterations);
1622 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1623 if (!urb) {
1624 retval = -ENOMEM;
1625 break;
1626 }
1627 // FIRMWARE: bulk sink (maybe accepts short writes)
1628 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
1629 simple_free_urb (urb);
1630 break;
1631 case 2:
1632 if (dev->in_pipe == 0)
1633 break;
1634 dev_info(&intf->dev,
1635 "TEST 2: read %d bytes %u times\n",
1636 param->length, param->iterations);
1637 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1638 if (!urb) {
1639 retval = -ENOMEM;
1640 break;
1641 }
1642 // FIRMWARE: bulk source (maybe generates short writes)
1643 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
1644 simple_free_urb (urb);
1645 break;
1646 case 3:
1647 if (dev->out_pipe == 0 || param->vary == 0)
1648 break;
1649 dev_info(&intf->dev,
1650 "TEST 3: write/%d 0..%d bytes %u times\n",
1651 param->vary, param->length, param->iterations);
1652 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1653 if (!urb) {
1654 retval = -ENOMEM;
1655 break;
1656 }
1657 // FIRMWARE: bulk sink (maybe accepts short writes)
1658 retval = simple_io(dev, urb, param->iterations, param->vary,
1659 0, "test3");
1660 simple_free_urb (urb);
1661 break;
1662 case 4:
1663 if (dev->in_pipe == 0 || param->vary == 0)
1664 break;
1665 dev_info(&intf->dev,
1666 "TEST 4: read/%d 0..%d bytes %u times\n",
1667 param->vary, param->length, param->iterations);
1668 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1669 if (!urb) {
1670 retval = -ENOMEM;
1671 break;
1672 }
1673 // FIRMWARE: bulk source (maybe generates short writes)
1674 retval = simple_io(dev, urb, param->iterations, param->vary,
1675 0, "test4");
1676 simple_free_urb (urb);
1677 break;
1678
1679 /* Queued bulk I/O tests */
1680 case 5:
1681 if (dev->out_pipe == 0 || param->sglen == 0)
1682 break;
1683 dev_info(&intf->dev,
1684 "TEST 5: write %d sglists %d entries of %d bytes\n",
1685 param->iterations,
1686 param->sglen, param->length);
1687 sg = alloc_sglist (param->sglen, param->length, 0);
1688 if (!sg) {
1689 retval = -ENOMEM;
1690 break;
1691 }
1692 // FIRMWARE: bulk sink (maybe accepts short writes)
1693 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1694 &req, sg, param->sglen);
1695 free_sglist (sg, param->sglen);
1696 break;
1697
1698 case 6:
1699 if (dev->in_pipe == 0 || param->sglen == 0)
1700 break;
1701 dev_info(&intf->dev,
1702 "TEST 6: read %d sglists %d entries of %d bytes\n",
1703 param->iterations,
1704 param->sglen, param->length);
1705 sg = alloc_sglist (param->sglen, param->length, 0);
1706 if (!sg) {
1707 retval = -ENOMEM;
1708 break;
1709 }
1710 // FIRMWARE: bulk source (maybe generates short writes)
1711 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1712 &req, sg, param->sglen);
1713 free_sglist (sg, param->sglen);
1714 break;
1715 case 7:
1716 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1717 break;
1718 dev_info(&intf->dev,
1719 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1720 param->vary, param->iterations,
1721 param->sglen, param->length);
1722 sg = alloc_sglist (param->sglen, param->length, param->vary);
1723 if (!sg) {
1724 retval = -ENOMEM;
1725 break;
1726 }
1727 // FIRMWARE: bulk sink (maybe accepts short writes)
1728 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1729 &req, sg, param->sglen);
1730 free_sglist (sg, param->sglen);
1731 break;
1732 case 8:
1733 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1734 break;
1735 dev_info(&intf->dev,
1736 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1737 param->vary, param->iterations,
1738 param->sglen, param->length);
1739 sg = alloc_sglist (param->sglen, param->length, param->vary);
1740 if (!sg) {
1741 retval = -ENOMEM;
1742 break;
1743 }
1744 // FIRMWARE: bulk source (maybe generates short writes)
1745 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1746 &req, sg, param->sglen);
1747 free_sglist (sg, param->sglen);
1748 break;
1749
1750 /* non-queued sanity tests for control (chapter 9 subset) */
1751 case 9:
1752 retval = 0;
1753 dev_info(&intf->dev,
1754 "TEST 9: ch9 (subset) control tests, %d times\n",
1755 param->iterations);
1756 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1757 retval = ch9_postconfig (dev);
1758 if (retval)
1759 dev_err(&intf->dev, "ch9 subset failed, "
1760 "iterations left %d\n", i);
1761 break;
1762
1763 /* queued control messaging */
1764 case 10:
1765 if (param->sglen == 0)
1766 break;
1767 retval = 0;
1768 dev_info(&intf->dev,
1769 "TEST 10: queue %d control calls, %d times\n",
1770 param->sglen,
1771 param->iterations);
1772 retval = test_ctrl_queue (dev, param);
1773 break;
1774
1775 /* simple non-queued unlinks (ring with one urb) */
1776 case 11:
1777 if (dev->in_pipe == 0 || !param->length)
1778 break;
1779 retval = 0;
1780 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
1781 param->iterations, param->length);
1782 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1783 retval = unlink_simple (dev, dev->in_pipe,
1784 param->length);
1785 if (retval)
1786 dev_err(&intf->dev, "unlink reads failed %d, "
1787 "iterations left %d\n", retval, i);
1788 break;
1789 case 12:
1790 if (dev->out_pipe == 0 || !param->length)
1791 break;
1792 retval = 0;
1793 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
1794 param->iterations, param->length);
1795 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1796 retval = unlink_simple (dev, dev->out_pipe,
1797 param->length);
1798 if (retval)
1799 dev_err(&intf->dev, "unlink writes failed %d, "
1800 "iterations left %d\n", retval, i);
1801 break;
1802
1803 /* ep halt tests */
1804 case 13:
1805 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1806 break;
1807 retval = 0;
1808 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
1809 param->iterations);
1810 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1811 retval = halt_simple (dev);
1812
1813 if (retval)
1814 ERROR(dev, "halts failed, iterations left %d\n", i);
1815 break;
1816
1817 /* control write tests */
1818 case 14:
1819 if (!dev->info->ctrl_out)
1820 break;
1821 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1822 param->iterations,
1823 realworld ? 1 : 0, param->length,
1824 param->vary);
1825 retval = ctrl_out(dev, param->iterations,
1826 param->length, param->vary);
1827 break;
1828
1829 /* iso write tests */
1830 case 15:
1831 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1832 break;
1833 dev_info(&intf->dev,
1834 "TEST 15: write %d iso, %d entries of %d bytes\n",
1835 param->iterations,
1836 param->sglen, param->length);
1837 // FIRMWARE: iso sink
1838 retval = test_iso_queue (dev, param,
1839 dev->out_iso_pipe, dev->iso_out);
1840 break;
1841
1842 /* iso read tests */
1843 case 16:
1844 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1845 break;
1846 dev_info(&intf->dev,
1847 "TEST 16: read %d iso, %d entries of %d bytes\n",
1848 param->iterations,
1849 param->sglen, param->length);
1850 // FIRMWARE: iso source
1851 retval = test_iso_queue (dev, param,
1852 dev->in_iso_pipe, dev->iso_in);
1853 break;
1854
1855 // FIXME unlink from queue (ring with N urbs)
1856
1857 // FIXME scatterlist cancel (needs helper thread)
1858
1859 }
1860 do_gettimeofday (&param->duration);
1861 param->duration.tv_sec -= start.tv_sec;
1862 param->duration.tv_usec -= start.tv_usec;
1863 if (param->duration.tv_usec < 0) {
1864 param->duration.tv_usec += 1000 * 1000;
1865 param->duration.tv_sec -= 1;
1866 }
1867 mutex_unlock(&dev->lock);
1868 return retval;
1869 }
1870
1871 /*-------------------------------------------------------------------------*/
1872
1873 static unsigned force_interrupt = 0;
1874 module_param (force_interrupt, uint, 0);
1875 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1876
1877 #ifdef GENERIC
1878 static unsigned short vendor;
1879 module_param(vendor, ushort, 0);
1880 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1881
1882 static unsigned short product;
1883 module_param(product, ushort, 0);
1884 MODULE_PARM_DESC (product, "product code (from vendor)");
1885 #endif
1886
1887 static int
1888 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1889 {
1890 struct usb_device *udev;
1891 struct usbtest_dev *dev;
1892 struct usbtest_info *info;
1893 char *rtest, *wtest;
1894 char *irtest, *iwtest;
1895
1896 udev = interface_to_usbdev (intf);
1897
1898 #ifdef GENERIC
1899 /* specify devices by module parameters? */
1900 if (id->match_flags == 0) {
1901 /* vendor match required, product match optional */
1902 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1903 return -ENODEV;
1904 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1905 return -ENODEV;
1906 dev_info(&intf->dev, "matched module params, "
1907 "vend=0x%04x prod=0x%04x\n",
1908 le16_to_cpu(udev->descriptor.idVendor),
1909 le16_to_cpu(udev->descriptor.idProduct));
1910 }
1911 #endif
1912
1913 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1914 if (!dev)
1915 return -ENOMEM;
1916 info = (struct usbtest_info *) id->driver_info;
1917 dev->info = info;
1918 mutex_init(&dev->lock);
1919
1920 dev->intf = intf;
1921
1922 /* cacheline-aligned scratch for i/o */
1923 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) {
1924 kfree (dev);
1925 return -ENOMEM;
1926 }
1927
1928 /* NOTE this doesn't yet test the handful of difference that are
1929 * visible with high speed interrupts: bigger maxpacket (1K) and
1930 * "high bandwidth" modes (up to 3 packets/uframe).
1931 */
1932 rtest = wtest = "";
1933 irtest = iwtest = "";
1934 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1935 if (info->ep_in) {
1936 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1937 rtest = " intr-in";
1938 }
1939 if (info->ep_out) {
1940 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1941 wtest = " intr-out";
1942 }
1943 } else {
1944 if (info->autoconf) {
1945 int status;
1946
1947 status = get_endpoints (dev, intf);
1948 if (status < 0) {
1949 WARN(dev, "couldn't get endpoints, %d\n",
1950 status);
1951 return status;
1952 }
1953 /* may find bulk or ISO pipes */
1954 } else {
1955 if (info->ep_in)
1956 dev->in_pipe = usb_rcvbulkpipe (udev,
1957 info->ep_in);
1958 if (info->ep_out)
1959 dev->out_pipe = usb_sndbulkpipe (udev,
1960 info->ep_out);
1961 }
1962 if (dev->in_pipe)
1963 rtest = " bulk-in";
1964 if (dev->out_pipe)
1965 wtest = " bulk-out";
1966 if (dev->in_iso_pipe)
1967 irtest = " iso-in";
1968 if (dev->out_iso_pipe)
1969 iwtest = " iso-out";
1970 }
1971
1972 usb_set_intfdata (intf, dev);
1973 dev_info (&intf->dev, "%s\n", info->name);
1974 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1975 ({ char *tmp;
1976 switch (udev->speed) {
1977 case USB_SPEED_LOW: tmp = "low"; break;
1978 case USB_SPEED_FULL: tmp = "full"; break;
1979 case USB_SPEED_HIGH: tmp = "high"; break;
1980 default: tmp = "unknown"; break;
1981 }; tmp; }),
1982 info->ctrl_out ? " in/out" : "",
1983 rtest, wtest,
1984 irtest, iwtest,
1985 info->alt >= 0 ? " (+alt)" : "");
1986 return 0;
1987 }
1988
1989 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
1990 {
1991 return 0;
1992 }
1993
1994 static int usbtest_resume (struct usb_interface *intf)
1995 {
1996 return 0;
1997 }
1998
1999
2000 static void usbtest_disconnect (struct usb_interface *intf)
2001 {
2002 struct usbtest_dev *dev = usb_get_intfdata (intf);
2003
2004 usb_set_intfdata (intf, NULL);
2005 dev_dbg (&intf->dev, "disconnect\n");
2006 kfree (dev);
2007 }
2008
2009 /* Basic testing only needs a device that can source or sink bulk traffic.
2010 * Any device can test control transfers (default with GENERIC binding).
2011 *
2012 * Several entries work with the default EP0 implementation that's built
2013 * into EZ-USB chips. There's a default vendor ID which can be overridden
2014 * by (very) small config EEPROMS, but otherwise all these devices act
2015 * identically until firmware is loaded: only EP0 works. It turns out
2016 * to be easy to make other endpoints work, without modifying that EP0
2017 * behavior. For now, we expect that kind of firmware.
2018 */
2019
2020 /* an21xx or fx versions of ez-usb */
2021 static struct usbtest_info ez1_info = {
2022 .name = "EZ-USB device",
2023 .ep_in = 2,
2024 .ep_out = 2,
2025 .alt = 1,
2026 };
2027
2028 /* fx2 version of ez-usb */
2029 static struct usbtest_info ez2_info = {
2030 .name = "FX2 device",
2031 .ep_in = 6,
2032 .ep_out = 2,
2033 .alt = 1,
2034 };
2035
2036 /* ezusb family device with dedicated usb test firmware,
2037 */
2038 static struct usbtest_info fw_info = {
2039 .name = "usb test device",
2040 .ep_in = 2,
2041 .ep_out = 2,
2042 .alt = 1,
2043 .autoconf = 1, // iso and ctrl_out need autoconf
2044 .ctrl_out = 1,
2045 .iso = 1, // iso_ep's are #8 in/out
2046 };
2047
2048 /* peripheral running Linux and 'zero.c' test firmware, or
2049 * its user-mode cousin. different versions of this use
2050 * different hardware with the same vendor/product codes.
2051 * host side MUST rely on the endpoint descriptors.
2052 */
2053 static struct usbtest_info gz_info = {
2054 .name = "Linux gadget zero",
2055 .autoconf = 1,
2056 .ctrl_out = 1,
2057 .alt = 0,
2058 };
2059
2060 static struct usbtest_info um_info = {
2061 .name = "Linux user mode test driver",
2062 .autoconf = 1,
2063 .alt = -1,
2064 };
2065
2066 static struct usbtest_info um2_info = {
2067 .name = "Linux user mode ISO test driver",
2068 .autoconf = 1,
2069 .iso = 1,
2070 .alt = -1,
2071 };
2072
2073 #ifdef IBOT2
2074 /* this is a nice source of high speed bulk data;
2075 * uses an FX2, with firmware provided in the device
2076 */
2077 static struct usbtest_info ibot2_info = {
2078 .name = "iBOT2 webcam",
2079 .ep_in = 2,
2080 .alt = -1,
2081 };
2082 #endif
2083
2084 #ifdef GENERIC
2085 /* we can use any device to test control traffic */
2086 static struct usbtest_info generic_info = {
2087 .name = "Generic USB device",
2088 .alt = -1,
2089 };
2090 #endif
2091
2092
2093 static struct usb_device_id id_table [] = {
2094
2095 /*-------------------------------------------------------------*/
2096
2097 /* EZ-USB devices which download firmware to replace (or in our
2098 * case augment) the default device implementation.
2099 */
2100
2101 /* generic EZ-USB FX controller */
2102 { USB_DEVICE (0x0547, 0x2235),
2103 .driver_info = (unsigned long) &ez1_info,
2104 },
2105
2106 /* CY3671 development board with EZ-USB FX */
2107 { USB_DEVICE (0x0547, 0x0080),
2108 .driver_info = (unsigned long) &ez1_info,
2109 },
2110
2111 /* generic EZ-USB FX2 controller (or development board) */
2112 { USB_DEVICE (0x04b4, 0x8613),
2113 .driver_info = (unsigned long) &ez2_info,
2114 },
2115
2116 /* re-enumerated usb test device firmware */
2117 { USB_DEVICE (0xfff0, 0xfff0),
2118 .driver_info = (unsigned long) &fw_info,
2119 },
2120
2121 /* "Gadget Zero" firmware runs under Linux */
2122 { USB_DEVICE (0x0525, 0xa4a0),
2123 .driver_info = (unsigned long) &gz_info,
2124 },
2125
2126 /* so does a user-mode variant */
2127 { USB_DEVICE (0x0525, 0xa4a4),
2128 .driver_info = (unsigned long) &um_info,
2129 },
2130
2131 /* ... and a user-mode variant that talks iso */
2132 { USB_DEVICE (0x0525, 0xa4a3),
2133 .driver_info = (unsigned long) &um2_info,
2134 },
2135
2136 #ifdef KEYSPAN_19Qi
2137 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2138 // this does not coexist with the real Keyspan 19qi driver!
2139 { USB_DEVICE (0x06cd, 0x010b),
2140 .driver_info = (unsigned long) &ez1_info,
2141 },
2142 #endif
2143
2144 /*-------------------------------------------------------------*/
2145
2146 #ifdef IBOT2
2147 /* iBOT2 makes a nice source of high speed bulk-in data */
2148 // this does not coexist with a real iBOT2 driver!
2149 { USB_DEVICE (0x0b62, 0x0059),
2150 .driver_info = (unsigned long) &ibot2_info,
2151 },
2152 #endif
2153
2154 /*-------------------------------------------------------------*/
2155
2156 #ifdef GENERIC
2157 /* module params can specify devices to use for control tests */
2158 { .driver_info = (unsigned long) &generic_info, },
2159 #endif
2160
2161 /*-------------------------------------------------------------*/
2162
2163 { }
2164 };
2165 MODULE_DEVICE_TABLE (usb, id_table);
2166
2167 static struct usb_driver usbtest_driver = {
2168 .name = "usbtest",
2169 .id_table = id_table,
2170 .probe = usbtest_probe,
2171 .ioctl = usbtest_ioctl,
2172 .disconnect = usbtest_disconnect,
2173 .suspend = usbtest_suspend,
2174 .resume = usbtest_resume,
2175 };
2176
2177 /*-------------------------------------------------------------------------*/
2178
2179 static int __init usbtest_init (void)
2180 {
2181 #ifdef GENERIC
2182 if (vendor)
2183 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2184 #endif
2185 return usb_register (&usbtest_driver);
2186 }
2187 module_init (usbtest_init);
2188
2189 static void __exit usbtest_exit (void)
2190 {
2191 usb_deregister (&usbtest_driver);
2192 }
2193 module_exit (usbtest_exit);
2194
2195 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2196 MODULE_LICENSE ("GPL");
2197
Support for the Chinese Samsung S3C2440 based development boards