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kbuild: Fix instrumentation removal breakage on avr32
[wrt350n-kernel.git] / drivers / usb / misc / usbtest.c
blobda922dfc0dccfefa3c308d35301580fe1e39d82f
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 xprintk(tdev,level,fmt,args...) \
83 dev_printk(level , &(tdev)->intf->dev , fmt , ## args)
84
85 #ifdef DEBUG
86 #define DBG(dev,fmt,args...) \
87 xprintk(dev , KERN_DEBUG , fmt , ## args)
88 #else
89 #define DBG(dev,fmt,args...) \
90 do { } while (0)
91 #endif /* DEBUG */
92
93 #ifdef VERBOSE
94 #define VDBG DBG
95 #else
96 #define VDBG(dev,fmt,args...) \
97 do { } while (0)
98 #endif /* VERBOSE */
99
100 #define ERROR(dev,fmt,args...) \
101 xprintk(dev , KERN_ERR , fmt , ## args)
102 #define WARN(dev,fmt,args...) \
103 xprintk(dev , KERN_WARNING , fmt , ## args)
104 #define INFO(dev,fmt,args...) \
105 xprintk(dev , KERN_INFO , fmt , ## args)
106
107 /*-------------------------------------------------------------------------*/
108
109 static int
110 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
111 {
112 int tmp;
113 struct usb_host_interface *alt;
114 struct usb_host_endpoint *in, *out;
115 struct usb_host_endpoint *iso_in, *iso_out;
116 struct usb_device *udev;
117
118 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
119 unsigned ep;
120
121 in = out = NULL;
122 iso_in = iso_out = NULL;
123 alt = intf->altsetting + tmp;
124
125 /* take the first altsetting with in-bulk + out-bulk;
126 * ignore other endpoints and altsetttings.
127 */
128 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
129 struct usb_host_endpoint *e;
130
131 e = alt->endpoint + ep;
132 switch (e->desc.bmAttributes) {
133 case USB_ENDPOINT_XFER_BULK:
134 break;
135 case USB_ENDPOINT_XFER_ISOC:
136 if (dev->info->iso)
137 goto try_iso;
138 // FALLTHROUGH
139 default:
140 continue;
141 }
142 if (usb_endpoint_dir_in(&e->desc)) {
143 if (!in)
144 in = e;
145 } else {
146 if (!out)
147 out = e;
148 }
149 continue;
150 try_iso:
151 if (usb_endpoint_dir_in(&e->desc)) {
152 if (!iso_in)
153 iso_in = e;
154 } else {
155 if (!iso_out)
156 iso_out = e;
157 }
158 }
159 if ((in && out) || (iso_in && iso_out))
160 goto found;
161 }
162 return -EINVAL;
163
164 found:
165 udev = testdev_to_usbdev (dev);
166 if (alt->desc.bAlternateSetting != 0) {
167 tmp = usb_set_interface (udev,
168 alt->desc.bInterfaceNumber,
169 alt->desc.bAlternateSetting);
170 if (tmp < 0)
171 return tmp;
172 }
173
174 if (in) {
175 dev->in_pipe = usb_rcvbulkpipe (udev,
176 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
177 dev->out_pipe = usb_sndbulkpipe (udev,
178 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
179 }
180 if (iso_in) {
181 dev->iso_in = &iso_in->desc;
182 dev->in_iso_pipe = usb_rcvisocpipe (udev,
183 iso_in->desc.bEndpointAddress
184 & USB_ENDPOINT_NUMBER_MASK);
185 dev->iso_out = &iso_out->desc;
186 dev->out_iso_pipe = usb_sndisocpipe (udev,
187 iso_out->desc.bEndpointAddress
188 & USB_ENDPOINT_NUMBER_MASK);
189 }
190 return 0;
191 }
192
193 /*-------------------------------------------------------------------------*/
194
195 /* Support for testing basic non-queued I/O streams.
196 *
197 * These just package urbs as requests that can be easily canceled.
198 * Each urb's data buffer is dynamically allocated; callers can fill
199 * them with non-zero test data (or test for it) when appropriate.
200 */
201
202 static void simple_callback (struct urb *urb)
203 {
204 complete ((struct completion *) urb->context);
205 }
206
207 static struct urb *simple_alloc_urb (
208 struct usb_device *udev,
209 int pipe,
210 unsigned long bytes
211 )
212 {
213 struct urb *urb;
214
215 if (bytes < 0)
216 return NULL;
217 urb = usb_alloc_urb (0, GFP_KERNEL);
218 if (!urb)
219 return urb;
220 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
221 urb->interval = (udev->speed == USB_SPEED_HIGH)
222 ? (INTERRUPT_RATE << 3)
223 : INTERRUPT_RATE;
224 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
225 if (usb_pipein (pipe))
226 urb->transfer_flags |= URB_SHORT_NOT_OK;
227 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
228 &urb->transfer_dma);
229 if (!urb->transfer_buffer) {
230 usb_free_urb (urb);
231 urb = NULL;
232 } else
233 memset (urb->transfer_buffer, 0, bytes);
234 return urb;
235 }
236
237 static unsigned pattern = 0;
238 module_param (pattern, uint, S_IRUGO);
239 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)");
240
241 static inline void simple_fill_buf (struct urb *urb)
242 {
243 unsigned i;
244 u8 *buf = urb->transfer_buffer;
245 unsigned len = urb->transfer_buffer_length;
246
247 switch (pattern) {
248 default:
249 // FALLTHROUGH
250 case 0:
251 memset (buf, 0, len);
252 break;
253 case 1: /* mod63 */
254 for (i = 0; i < len; i++)
255 *buf++ = (u8) (i % 63);
256 break;
257 }
258 }
259
260 static inline int simple_check_buf (struct urb *urb)
261 {
262 unsigned i;
263 u8 expected;
264 u8 *buf = urb->transfer_buffer;
265 unsigned len = urb->actual_length;
266
267 for (i = 0; i < len; i++, buf++) {
268 switch (pattern) {
269 /* all-zeroes has no synchronization issues */
270 case 0:
271 expected = 0;
272 break;
273 /* mod63 stays in sync with short-terminated transfers,
274 * or otherwise when host and gadget agree on how large
275 * each usb transfer request should be. resync is done
276 * with set_interface or set_config.
277 */
278 case 1: /* mod63 */
279 expected = i % 63;
280 break;
281 /* always fail unsupported patterns */
282 default:
283 expected = !*buf;
284 break;
285 }
286 if (*buf == expected)
287 continue;
288 dbg ("buf[%d] = %d (not %d)", i, *buf, expected);
289 return -EINVAL;
290 }
291 return 0;
292 }
293
294 static void simple_free_urb (struct urb *urb)
295 {
296 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
297 urb->transfer_buffer, urb->transfer_dma);
298 usb_free_urb (urb);
299 }
300
301 static int simple_io (
302 struct urb *urb,
303 int iterations,
304 int vary,
305 int expected,
306 const char *label
307 )
308 {
309 struct usb_device *udev = urb->dev;
310 int max = urb->transfer_buffer_length;
311 struct completion completion;
312 int retval = 0;
313
314 urb->context = &completion;
315 while (retval == 0 && iterations-- > 0) {
316 init_completion (&completion);
317 if (usb_pipeout (urb->pipe))
318 simple_fill_buf (urb);
319 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0)
320 break;
321
322 /* NOTE: no timeouts; can't be broken out of by interrupt */
323 wait_for_completion (&completion);
324 retval = urb->status;
325 urb->dev = udev;
326 if (retval == 0 && usb_pipein (urb->pipe))
327 retval = simple_check_buf (urb);
328
329 if (vary) {
330 int len = urb->transfer_buffer_length;
331
332 len += vary;
333 len %= max;
334 if (len == 0)
335 len = (vary < max) ? vary : max;
336 urb->transfer_buffer_length = len;
337 }
338
339 /* FIXME if endpoint halted, clear halt (and log) */
340 }
341 urb->transfer_buffer_length = max;
342
343 if (expected != retval)
344 dev_dbg (&udev->dev,
345 "%s failed, iterations left %d, status %d (not %d)\n",
346 label, iterations, retval, expected);
347 return retval;
348 }
349
350
351 /*-------------------------------------------------------------------------*/
352
353 /* We use scatterlist primitives to test queued I/O.
354 * Yes, this also tests the scatterlist primitives.
355 */
356
357 static void free_sglist (struct scatterlist *sg, int nents)
358 {
359 unsigned i;
360
361 if (!sg)
362 return;
363 for (i = 0; i < nents; i++) {
364 if (!sg_page(&sg[i]))
365 continue;
366 kfree (sg_virt(&sg[i]));
367 }
368 kfree (sg);
369 }
370
371 static struct scatterlist *
372 alloc_sglist (int nents, int max, int vary)
373 {
374 struct scatterlist *sg;
375 unsigned i;
376 unsigned size = max;
377
378 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL);
379 if (!sg)
380 return NULL;
381
382 for (i = 0; i < nents; i++) {
383 char *buf;
384 unsigned j;
385
386 buf = kzalloc (size, GFP_KERNEL);
387 if (!buf) {
388 free_sglist (sg, i);
389 return NULL;
390 }
391
392 /* kmalloc pages are always physically contiguous! */
393 sg_init_one(&sg[i], buf, size);
394
395 switch (pattern) {
396 case 0:
397 /* already zeroed */
398 break;
399 case 1:
400 for (j = 0; j < size; j++)
401 *buf++ = (u8) (j % 63);
402 break;
403 }
404
405 if (vary) {
406 size += vary;
407 size %= max;
408 if (size == 0)
409 size = (vary < max) ? vary : max;
410 }
411 }
412
413 return sg;
414 }
415
416 static int perform_sglist (
417 struct usb_device *udev,
418 unsigned iterations,
419 int pipe,
420 struct usb_sg_request *req,
421 struct scatterlist *sg,
422 int nents
423 )
424 {
425 int retval = 0;
426
427 while (retval == 0 && iterations-- > 0) {
428 retval = usb_sg_init (req, udev, pipe,
429 (udev->speed == USB_SPEED_HIGH)
430 ? (INTERRUPT_RATE << 3)
431 : INTERRUPT_RATE,
432 sg, nents, 0, GFP_KERNEL);
433
434 if (retval)
435 break;
436 usb_sg_wait (req);
437 retval = req->status;
438
439 /* FIXME check resulting data pattern */
440
441 /* FIXME if endpoint halted, clear halt (and log) */
442 }
443
444 // FIXME for unlink or fault handling tests, don't report
445 // failure if retval is as we expected ...
446
447 if (retval)
448 dbg ("perform_sglist failed, iterations left %d, status %d",
449 iterations, retval);
450 return retval;
451 }
452
453
454 /*-------------------------------------------------------------------------*/
455
456 /* unqueued control message testing
457 *
458 * there's a nice set of device functional requirements in chapter 9 of the
459 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
460 * special test firmware.
461 *
462 * we know the device is configured (or suspended) by the time it's visible
463 * through usbfs. we can't change that, so we won't test enumeration (which
464 * worked 'well enough' to get here, this time), power management (ditto),
465 * or remote wakeup (which needs human interaction).
466 */
467
468 static unsigned realworld = 1;
469 module_param (realworld, uint, 0);
470 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
471
472 static int get_altsetting (struct usbtest_dev *dev)
473 {
474 struct usb_interface *iface = dev->intf;
475 struct usb_device *udev = interface_to_usbdev (iface);
476 int retval;
477
478 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
479 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
480 0, iface->altsetting [0].desc.bInterfaceNumber,
481 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
482 switch (retval) {
483 case 1:
484 return dev->buf [0];
485 case 0:
486 retval = -ERANGE;
487 // FALLTHROUGH
488 default:
489 return retval;
490 }
491 }
492
493 static int set_altsetting (struct usbtest_dev *dev, int alternate)
494 {
495 struct usb_interface *iface = dev->intf;
496 struct usb_device *udev;
497
498 if (alternate < 0 || alternate >= 256)
499 return -EINVAL;
500
501 udev = interface_to_usbdev (iface);
502 return usb_set_interface (udev,
503 iface->altsetting [0].desc.bInterfaceNumber,
504 alternate);
505 }
506
507 static int is_good_config (char *buf, int len)
508 {
509 struct usb_config_descriptor *config;
510
511 if (len < sizeof *config)
512 return 0;
513 config = (struct usb_config_descriptor *) buf;
514
515 switch (config->bDescriptorType) {
516 case USB_DT_CONFIG:
517 case USB_DT_OTHER_SPEED_CONFIG:
518 if (config->bLength != 9) {
519 dbg ("bogus config descriptor length");
520 return 0;
521 }
522 /* this bit 'must be 1' but often isn't */
523 if (!realworld && !(config->bmAttributes & 0x80)) {
524 dbg ("high bit of config attributes not set");
525 return 0;
526 }
527 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
528 dbg ("reserved config bits set");
529 return 0;
530 }
531 break;
532 default:
533 return 0;
534 }
535
536 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
537 return 1;
538 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
539 return 1;
540 dbg ("bogus config descriptor read size");
541 return 0;
542 }
543
544 /* sanity test for standard requests working with usb_control_mesg() and some
545 * of the utility functions which use it.
546 *
547 * this doesn't test how endpoint halts behave or data toggles get set, since
548 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
549 * halt or toggle). toggle testing is impractical without support from hcds.
550 *
551 * this avoids failing devices linux would normally work with, by not testing
552 * config/altsetting operations for devices that only support their defaults.
553 * such devices rarely support those needless operations.
554 *
555 * NOTE that since this is a sanity test, it's not examining boundary cases
556 * to see if usbcore, hcd, and device all behave right. such testing would
557 * involve varied read sizes and other operation sequences.
558 */
559 static int ch9_postconfig (struct usbtest_dev *dev)
560 {
561 struct usb_interface *iface = dev->intf;
562 struct usb_device *udev = interface_to_usbdev (iface);
563 int i, alt, retval;
564
565 /* [9.2.3] if there's more than one altsetting, we need to be able to
566 * set and get each one. mostly trusts the descriptors from usbcore.
567 */
568 for (i = 0; i < iface->num_altsetting; i++) {
569
570 /* 9.2.3 constrains the range here */
571 alt = iface->altsetting [i].desc.bAlternateSetting;
572 if (alt < 0 || alt >= iface->num_altsetting) {
573 dev_dbg (&iface->dev,
574 "invalid alt [%d].bAltSetting = %d\n",
575 i, alt);
576 }
577
578 /* [real world] get/set unimplemented if there's only one */
579 if (realworld && iface->num_altsetting == 1)
580 continue;
581
582 /* [9.4.10] set_interface */
583 retval = set_altsetting (dev, alt);
584 if (retval) {
585 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n",
586 alt, retval);
587 return retval;
588 }
589
590 /* [9.4.4] get_interface always works */
591 retval = get_altsetting (dev);
592 if (retval != alt) {
593 dev_dbg (&iface->dev, "get alt should be %d, was %d\n",
594 alt, retval);
595 return (retval < 0) ? retval : -EDOM;
596 }
597
598 }
599
600 /* [real world] get_config unimplemented if there's only one */
601 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
602 int expected = udev->actconfig->desc.bConfigurationValue;
603
604 /* [9.4.2] get_configuration always works
605 * ... although some cheap devices (like one TI Hub I've got)
606 * won't return config descriptors except before set_config.
607 */
608 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
609 USB_REQ_GET_CONFIGURATION,
610 USB_DIR_IN | USB_RECIP_DEVICE,
611 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
612 if (retval != 1 || dev->buf [0] != expected) {
613 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n",
614 retval, dev->buf[0], expected);
615 return (retval < 0) ? retval : -EDOM;
616 }
617 }
618
619 /* there's always [9.4.3] a device descriptor [9.6.1] */
620 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
621 dev->buf, sizeof udev->descriptor);
622 if (retval != sizeof udev->descriptor) {
623 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval);
624 return (retval < 0) ? retval : -EDOM;
625 }
626
627 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
628 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
629 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
630 dev->buf, TBUF_SIZE);
631 if (!is_good_config (dev->buf, retval)) {
632 dev_dbg (&iface->dev,
633 "config [%d] descriptor --> %d\n",
634 i, retval);
635 return (retval < 0) ? retval : -EDOM;
636 }
637
638 // FIXME cross-checking udev->config[i] to make sure usbcore
639 // parsed it right (etc) would be good testing paranoia
640 }
641
642 /* and sometimes [9.2.6.6] speed dependent descriptors */
643 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
644 struct usb_qualifier_descriptor *d = NULL;
645
646 /* device qualifier [9.6.2] */
647 retval = usb_get_descriptor (udev,
648 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
649 sizeof (struct usb_qualifier_descriptor));
650 if (retval == -EPIPE) {
651 if (udev->speed == USB_SPEED_HIGH) {
652 dev_dbg (&iface->dev,
653 "hs dev qualifier --> %d\n",
654 retval);
655 return (retval < 0) ? retval : -EDOM;
656 }
657 /* usb2.0 but not high-speed capable; fine */
658 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
659 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval);
660 return (retval < 0) ? retval : -EDOM;
661 } else
662 d = (struct usb_qualifier_descriptor *) dev->buf;
663
664 /* might not have [9.6.2] any other-speed configs [9.6.4] */
665 if (d) {
666 unsigned max = d->bNumConfigurations;
667 for (i = 0; i < max; i++) {
668 retval = usb_get_descriptor (udev,
669 USB_DT_OTHER_SPEED_CONFIG, i,
670 dev->buf, TBUF_SIZE);
671 if (!is_good_config (dev->buf, retval)) {
672 dev_dbg (&iface->dev,
673 "other speed config --> %d\n",
674 retval);
675 return (retval < 0) ? retval : -EDOM;
676 }
677 }
678 }
679 }
680 // FIXME fetch strings from at least the device descriptor
681
682 /* [9.4.5] get_status always works */
683 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
684 if (retval != 2) {
685 dev_dbg (&iface->dev, "get dev status --> %d\n", retval);
686 return (retval < 0) ? retval : -EDOM;
687 }
688
689 // FIXME configuration.bmAttributes says if we could try to set/clear
690 // the device's remote wakeup feature ... if we can, test that here
691
692 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
693 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
694 if (retval != 2) {
695 dev_dbg (&iface->dev, "get interface status --> %d\n", retval);
696 return (retval < 0) ? retval : -EDOM;
697 }
698 // FIXME get status for each endpoint in the interface
699
700 return 0;
701 }
702
703 /*-------------------------------------------------------------------------*/
704
705 /* use ch9 requests to test whether:
706 * (a) queues work for control, keeping N subtests queued and
707 * active (auto-resubmit) for M loops through the queue.
708 * (b) protocol stalls (control-only) will autorecover.
709 * it's not like bulk/intr; no halt clearing.
710 * (c) short control reads are reported and handled.
711 * (d) queues are always processed in-order
712 */
713
714 struct ctrl_ctx {
715 spinlock_t lock;
716 struct usbtest_dev *dev;
717 struct completion complete;
718 unsigned count;
719 unsigned pending;
720 int status;
721 struct urb **urb;
722 struct usbtest_param *param;
723 int last;
724 };
725
726 #define NUM_SUBCASES 15 /* how many test subcases here? */
727
728 struct subcase {
729 struct usb_ctrlrequest setup;
730 int number;
731 int expected;
732 };
733
734 static void ctrl_complete (struct urb *urb)
735 {
736 struct ctrl_ctx *ctx = urb->context;
737 struct usb_ctrlrequest *reqp;
738 struct subcase *subcase;
739 int status = urb->status;
740
741 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
742 subcase = container_of (reqp, struct subcase, setup);
743
744 spin_lock (&ctx->lock);
745 ctx->count--;
746 ctx->pending--;
747
748 /* queue must transfer and complete in fifo order, unless
749 * usb_unlink_urb() is used to unlink something not at the
750 * physical queue head (not tested).
751 */
752 if (subcase->number > 0) {
753 if ((subcase->number - ctx->last) != 1) {
754 dbg ("subcase %d completed out of order, last %d",
755 subcase->number, ctx->last);
756 status = -EDOM;
757 ctx->last = subcase->number;
758 goto error;
759 }
760 }
761 ctx->last = subcase->number;
762
763 /* succeed or fault in only one way? */
764 if (status == subcase->expected)
765 status = 0;
766
767 /* async unlink for cleanup? */
768 else if (status != -ECONNRESET) {
769
770 /* some faults are allowed, not required */
771 if (subcase->expected > 0 && (
772 ((status == -subcase->expected /* happened */
773 || status == 0)))) /* didn't */
774 status = 0;
775 /* sometimes more than one fault is allowed */
776 else if (subcase->number == 12 && status == -EPIPE)
777 status = 0;
778 else
779 dbg ("subtest %d error, status %d",
780 subcase->number, status);
781 }
782
783 /* unexpected status codes mean errors; ideally, in hardware */
784 if (status) {
785 error:
786 if (ctx->status == 0) {
787 int i;
788
789 ctx->status = status;
790 info ("control queue %02x.%02x, err %d, %d left",
791 reqp->bRequestType, reqp->bRequest,
792 status, ctx->count);
793
794 /* FIXME this "unlink everything" exit route should
795 * be a separate test case.
796 */
797
798 /* unlink whatever's still pending */
799 for (i = 1; i < ctx->param->sglen; i++) {
800 struct urb *u = ctx->urb [
801 (i + subcase->number) % ctx->param->sglen];
802
803 if (u == urb || !u->dev)
804 continue;
805 spin_unlock(&ctx->lock);
806 status = usb_unlink_urb (u);
807 spin_lock(&ctx->lock);
808 switch (status) {
809 case -EINPROGRESS:
810 case -EBUSY:
811 case -EIDRM:
812 continue;
813 default:
814 dbg ("urb unlink --> %d", status);
815 }
816 }
817 status = ctx->status;
818 }
819 }
820
821 /* resubmit if we need to, else mark this as done */
822 if ((status == 0) && (ctx->pending < ctx->count)) {
823 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) {
824 dbg ("can't resubmit ctrl %02x.%02x, err %d",
825 reqp->bRequestType, reqp->bRequest, status);
826 urb->dev = NULL;
827 } else
828 ctx->pending++;
829 } else
830 urb->dev = NULL;
831
832 /* signal completion when nothing's queued */
833 if (ctx->pending == 0)
834 complete (&ctx->complete);
835 spin_unlock (&ctx->lock);
836 }
837
838 static int
839 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
840 {
841 struct usb_device *udev = testdev_to_usbdev (dev);
842 struct urb **urb;
843 struct ctrl_ctx context;
844 int i;
845
846 spin_lock_init (&context.lock);
847 context.dev = dev;
848 init_completion (&context.complete);
849 context.count = param->sglen * param->iterations;
850 context.pending = 0;
851 context.status = -ENOMEM;
852 context.param = param;
853 context.last = -1;
854
855 /* allocate and init the urbs we'll queue.
856 * as with bulk/intr sglists, sglen is the queue depth; it also
857 * controls which subtests run (more tests than sglen) or rerun.
858 */
859 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
860 if (!urb)
861 return -ENOMEM;
862 for (i = 0; i < param->sglen; i++) {
863 int pipe = usb_rcvctrlpipe (udev, 0);
864 unsigned len;
865 struct urb *u;
866 struct usb_ctrlrequest req;
867 struct subcase *reqp;
868 int expected = 0;
869
870 /* requests here are mostly expected to succeed on any
871 * device, but some are chosen to trigger protocol stalls
872 * or short reads.
873 */
874 memset (&req, 0, sizeof req);
875 req.bRequest = USB_REQ_GET_DESCRIPTOR;
876 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
877
878 switch (i % NUM_SUBCASES) {
879 case 0: // get device descriptor
880 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
881 len = sizeof (struct usb_device_descriptor);
882 break;
883 case 1: // get first config descriptor (only)
884 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
885 len = sizeof (struct usb_config_descriptor);
886 break;
887 case 2: // get altsetting (OFTEN STALLS)
888 req.bRequest = USB_REQ_GET_INTERFACE;
889 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
890 // index = 0 means first interface
891 len = 1;
892 expected = EPIPE;
893 break;
894 case 3: // get interface status
895 req.bRequest = USB_REQ_GET_STATUS;
896 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
897 // interface 0
898 len = 2;
899 break;
900 case 4: // get device status
901 req.bRequest = USB_REQ_GET_STATUS;
902 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
903 len = 2;
904 break;
905 case 5: // get device qualifier (MAY STALL)
906 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
907 len = sizeof (struct usb_qualifier_descriptor);
908 if (udev->speed != USB_SPEED_HIGH)
909 expected = EPIPE;
910 break;
911 case 6: // get first config descriptor, plus interface
912 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
913 len = sizeof (struct usb_config_descriptor);
914 len += sizeof (struct usb_interface_descriptor);
915 break;
916 case 7: // get interface descriptor (ALWAYS STALLS)
917 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
918 // interface == 0
919 len = sizeof (struct usb_interface_descriptor);
920 expected = EPIPE;
921 break;
922 // NOTE: two consecutive stalls in the queue here.
923 // that tests fault recovery a bit more aggressively.
924 case 8: // clear endpoint halt (USUALLY STALLS)
925 req.bRequest = USB_REQ_CLEAR_FEATURE;
926 req.bRequestType = USB_RECIP_ENDPOINT;
927 // wValue 0 == ep halt
928 // wIndex 0 == ep0 (shouldn't halt!)
929 len = 0;
930 pipe = usb_sndctrlpipe (udev, 0);
931 expected = EPIPE;
932 break;
933 case 9: // get endpoint status
934 req.bRequest = USB_REQ_GET_STATUS;
935 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
936 // endpoint 0
937 len = 2;
938 break;
939 case 10: // trigger short read (EREMOTEIO)
940 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
941 len = 1024;
942 expected = -EREMOTEIO;
943 break;
944 // NOTE: two consecutive _different_ faults in the queue.
945 case 11: // get endpoint descriptor (ALWAYS STALLS)
946 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
947 // endpoint == 0
948 len = sizeof (struct usb_interface_descriptor);
949 expected = EPIPE;
950 break;
951 // NOTE: sometimes even a third fault in the queue!
952 case 12: // get string 0 descriptor (MAY STALL)
953 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
954 // string == 0, for language IDs
955 len = sizeof (struct usb_interface_descriptor);
956 // may succeed when > 4 languages
957 expected = EREMOTEIO; // or EPIPE, if no strings
958 break;
959 case 13: // short read, resembling case 10
960 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
961 // last data packet "should" be DATA1, not DATA0
962 len = 1024 - udev->descriptor.bMaxPacketSize0;
963 expected = -EREMOTEIO;
964 break;
965 case 14: // short read; try to fill the last packet
966 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
967 // device descriptor size == 18 bytes
968 len = udev->descriptor.bMaxPacketSize0;
969 switch (len) {
970 case 8: len = 24; break;
971 case 16: len = 32; break;
972 }
973 expected = -EREMOTEIO;
974 break;
975 default:
976 err ("bogus number of ctrl queue testcases!");
977 context.status = -EINVAL;
978 goto cleanup;
979 }
980 req.wLength = cpu_to_le16 (len);
981 urb [i] = u = simple_alloc_urb (udev, pipe, len);
982 if (!u)
983 goto cleanup;
984
985 reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL,
986 &u->setup_dma);
987 if (!reqp)
988 goto cleanup;
989 reqp->setup = req;
990 reqp->number = i % NUM_SUBCASES;
991 reqp->expected = expected;
992 u->setup_packet = (char *) &reqp->setup;
993 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
994
995 u->context = &context;
996 u->complete = ctrl_complete;
997 }
998
999 /* queue the urbs */
1000 context.urb = urb;
1001 spin_lock_irq (&context.lock);
1002 for (i = 0; i < param->sglen; i++) {
1003 context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
1004 if (context.status != 0) {
1005 dbg ("can't submit urb[%d], status %d",
1006 i, context.status);
1007 context.count = context.pending;
1008 break;
1009 }
1010 context.pending++;
1011 }
1012 spin_unlock_irq (&context.lock);
1013
1014 /* FIXME set timer and time out; provide a disconnect hook */
1015
1016 /* wait for the last one to complete */
1017 if (context.pending > 0)
1018 wait_for_completion (&context.complete);
1019
1020 cleanup:
1021 for (i = 0; i < param->sglen; i++) {
1022 if (!urb [i])
1023 continue;
1024 urb [i]->dev = udev;
1025 if (urb [i]->setup_packet)
1026 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1027 urb [i]->setup_packet,
1028 urb [i]->setup_dma);
1029 simple_free_urb (urb [i]);
1030 }
1031 kfree (urb);
1032 return context.status;
1033 }
1034 #undef NUM_SUBCASES
1035
1036
1037 /*-------------------------------------------------------------------------*/
1038
1039 static void unlink1_callback (struct urb *urb)
1040 {
1041 int status = urb->status;
1042
1043 // we "know" -EPIPE (stall) never happens
1044 if (!status)
1045 status = usb_submit_urb (urb, GFP_ATOMIC);
1046 if (status) {
1047 urb->status = status;
1048 complete ((struct completion *) urb->context);
1049 }
1050 }
1051
1052 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1053 {
1054 struct urb *urb;
1055 struct completion completion;
1056 int retval = 0;
1057
1058 init_completion (&completion);
1059 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1060 if (!urb)
1061 return -ENOMEM;
1062 urb->context = &completion;
1063 urb->complete = unlink1_callback;
1064
1065 /* keep the endpoint busy. there are lots of hc/hcd-internal
1066 * states, and testing should get to all of them over time.
1067 *
1068 * FIXME want additional tests for when endpoint is STALLing
1069 * due to errors, or is just NAKing requests.
1070 */
1071 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) {
1072 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval);
1073 return retval;
1074 }
1075
1076 /* unlinking that should always work. variable delay tests more
1077 * hcd states and code paths, even with little other system load.
1078 */
1079 msleep (jiffies % (2 * INTERRUPT_RATE));
1080 if (async) {
1081 retry:
1082 retval = usb_unlink_urb (urb);
1083 if (retval == -EBUSY || retval == -EIDRM) {
1084 /* we can't unlink urbs while they're completing.
1085 * or if they've completed, and we haven't resubmitted.
1086 * "normal" drivers would prevent resubmission, but
1087 * since we're testing unlink paths, we can't.
1088 */
1089 dev_dbg (&dev->intf->dev, "unlink retry\n");
1090 goto retry;
1091 }
1092 } else
1093 usb_kill_urb (urb);
1094 if (!(retval == 0 || retval == -EINPROGRESS)) {
1095 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval);
1096 return retval;
1097 }
1098
1099 wait_for_completion (&completion);
1100 retval = urb->status;
1101 simple_free_urb (urb);
1102
1103 if (async)
1104 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1105 else
1106 return (retval == -ENOENT || retval == -EPERM) ?
1107 0 : retval - 2000;
1108 }
1109
1110 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1111 {
1112 int retval = 0;
1113
1114 /* test sync and async paths */
1115 retval = unlink1 (dev, pipe, len, 1);
1116 if (!retval)
1117 retval = unlink1 (dev, pipe, len, 0);
1118 return retval;
1119 }
1120
1121 /*-------------------------------------------------------------------------*/
1122
1123 static int verify_not_halted (int ep, struct urb *urb)
1124 {
1125 int retval;
1126 u16 status;
1127
1128 /* shouldn't look or act halted */
1129 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1130 if (retval < 0) {
1131 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval);
1132 return retval;
1133 }
1134 if (status != 0) {
1135 dbg ("ep %02x bogus status: %04x != 0", ep, status);
1136 return -EINVAL;
1137 }
1138 retval = simple_io (urb, 1, 0, 0, __FUNCTION__);
1139 if (retval != 0)
1140 return -EINVAL;
1141 return 0;
1142 }
1143
1144 static int verify_halted (int ep, struct urb *urb)
1145 {
1146 int retval;
1147 u16 status;
1148
1149 /* should look and act halted */
1150 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1151 if (retval < 0) {
1152 dbg ("ep %02x couldn't get halt status, %d", ep, retval);
1153 return retval;
1154 }
1155 le16_to_cpus(&status);
1156 if (status != 1) {
1157 dbg ("ep %02x bogus status: %04x != 1", ep, status);
1158 return -EINVAL;
1159 }
1160 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__);
1161 if (retval != -EPIPE)
1162 return -EINVAL;
1163 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted");
1164 if (retval != -EPIPE)
1165 return -EINVAL;
1166 return 0;
1167 }
1168
1169 static int test_halt (int ep, struct urb *urb)
1170 {
1171 int retval;
1172
1173 /* shouldn't look or act halted now */
1174 retval = verify_not_halted (ep, urb);
1175 if (retval < 0)
1176 return retval;
1177
1178 /* set halt (protocol test only), verify it worked */
1179 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1180 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1181 USB_ENDPOINT_HALT, ep,
1182 NULL, 0, USB_CTRL_SET_TIMEOUT);
1183 if (retval < 0) {
1184 dbg ("ep %02x couldn't set halt, %d", ep, retval);
1185 return retval;
1186 }
1187 retval = verify_halted (ep, urb);
1188 if (retval < 0)
1189 return retval;
1190
1191 /* clear halt (tests API + protocol), verify it worked */
1192 retval = usb_clear_halt (urb->dev, urb->pipe);
1193 if (retval < 0) {
1194 dbg ("ep %02x couldn't clear halt, %d", ep, retval);
1195 return retval;
1196 }
1197 retval = verify_not_halted (ep, urb);
1198 if (retval < 0)
1199 return retval;
1200
1201 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1202
1203 return 0;
1204 }
1205
1206 static int halt_simple (struct usbtest_dev *dev)
1207 {
1208 int ep;
1209 int retval = 0;
1210 struct urb *urb;
1211
1212 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1213 if (urb == NULL)
1214 return -ENOMEM;
1215
1216 if (dev->in_pipe) {
1217 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1218 urb->pipe = dev->in_pipe;
1219 retval = test_halt (ep, urb);
1220 if (retval < 0)
1221 goto done;
1222 }
1223
1224 if (dev->out_pipe) {
1225 ep = usb_pipeendpoint (dev->out_pipe);
1226 urb->pipe = dev->out_pipe;
1227 retval = test_halt (ep, urb);
1228 }
1229 done:
1230 simple_free_urb (urb);
1231 return retval;
1232 }
1233
1234 /*-------------------------------------------------------------------------*/
1235
1236 /* Control OUT tests use the vendor control requests from Intel's
1237 * USB 2.0 compliance test device: write a buffer, read it back.
1238 *
1239 * Intel's spec only _requires_ that it work for one packet, which
1240 * is pretty weak. Some HCDs place limits here; most devices will
1241 * need to be able to handle more than one OUT data packet. We'll
1242 * try whatever we're told to try.
1243 */
1244 static int ctrl_out (struct usbtest_dev *dev,
1245 unsigned count, unsigned length, unsigned vary)
1246 {
1247 unsigned i, j, len;
1248 int retval;
1249 u8 *buf;
1250 char *what = "?";
1251 struct usb_device *udev;
1252
1253 if (length < 1 || length > 0xffff || vary >= length)
1254 return -EINVAL;
1255
1256 buf = kmalloc(length, GFP_KERNEL);
1257 if (!buf)
1258 return -ENOMEM;
1259
1260 udev = testdev_to_usbdev (dev);
1261 len = length;
1262 retval = 0;
1263
1264 /* NOTE: hardware might well act differently if we pushed it
1265 * with lots back-to-back queued requests.
1266 */
1267 for (i = 0; i < count; i++) {
1268 /* write patterned data */
1269 for (j = 0; j < len; j++)
1270 buf [j] = i + j;
1271 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1272 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1273 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1274 if (retval != len) {
1275 what = "write";
1276 if (retval >= 0) {
1277 INFO(dev, "ctrl_out, wlen %d (expected %d)\n",
1278 retval, len);
1279 retval = -EBADMSG;
1280 }
1281 break;
1282 }
1283
1284 /* read it back -- assuming nothing intervened!! */
1285 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1286 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1287 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1288 if (retval != len) {
1289 what = "read";
1290 if (retval >= 0) {
1291 INFO(dev, "ctrl_out, rlen %d (expected %d)\n",
1292 retval, len);
1293 retval = -EBADMSG;
1294 }
1295 break;
1296 }
1297
1298 /* fail if we can't verify */
1299 for (j = 0; j < len; j++) {
1300 if (buf [j] != (u8) (i + j)) {
1301 INFO (dev, "ctrl_out, byte %d is %d not %d\n",
1302 j, buf [j], (u8) i + j);
1303 retval = -EBADMSG;
1304 break;
1305 }
1306 }
1307 if (retval < 0) {
1308 what = "verify";
1309 break;
1310 }
1311
1312 len += vary;
1313
1314 /* [real world] the "zero bytes IN" case isn't really used.
1315 * hardware can easily trip up in this weird case, since its
1316 * status stage is IN, not OUT like other ep0in transfers.
1317 */
1318 if (len > length)
1319 len = realworld ? 1 : 0;
1320 }
1321
1322 if (retval < 0)
1323 INFO (dev, "ctrl_out %s failed, code %d, count %d\n",
1324 what, retval, i);
1325
1326 kfree (buf);
1327 return retval;
1328 }
1329
1330 /*-------------------------------------------------------------------------*/
1331
1332 /* ISO tests ... mimics common usage
1333 * - buffer length is split into N packets (mostly maxpacket sized)
1334 * - multi-buffers according to sglen
1335 */
1336
1337 struct iso_context {
1338 unsigned count;
1339 unsigned pending;
1340 spinlock_t lock;
1341 struct completion done;
1342 int submit_error;
1343 unsigned long errors;
1344 unsigned long packet_count;
1345 struct usbtest_dev *dev;
1346 };
1347
1348 static void iso_callback (struct urb *urb)
1349 {
1350 struct iso_context *ctx = urb->context;
1351
1352 spin_lock(&ctx->lock);
1353 ctx->count--;
1354
1355 ctx->packet_count += urb->number_of_packets;
1356 if (urb->error_count > 0)
1357 ctx->errors += urb->error_count;
1358 else if (urb->status != 0)
1359 ctx->errors += urb->number_of_packets;
1360
1361 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1362 && !ctx->submit_error) {
1363 int status = usb_submit_urb (urb, GFP_ATOMIC);
1364 switch (status) {
1365 case 0:
1366 goto done;
1367 default:
1368 dev_dbg (&ctx->dev->intf->dev,
1369 "iso resubmit err %d\n",
1370 status);
1371 /* FALLTHROUGH */
1372 case -ENODEV: /* disconnected */
1373 case -ESHUTDOWN: /* endpoint disabled */
1374 ctx->submit_error = 1;
1375 break;
1376 }
1377 }
1378 simple_free_urb (urb);
1379
1380 ctx->pending--;
1381 if (ctx->pending == 0) {
1382 if (ctx->errors)
1383 dev_dbg (&ctx->dev->intf->dev,
1384 "iso test, %lu errors out of %lu\n",
1385 ctx->errors, ctx->packet_count);
1386 complete (&ctx->done);
1387 }
1388 done:
1389 spin_unlock(&ctx->lock);
1390 }
1391
1392 static struct urb *iso_alloc_urb (
1393 struct usb_device *udev,
1394 int pipe,
1395 struct usb_endpoint_descriptor *desc,
1396 long bytes
1397 )
1398 {
1399 struct urb *urb;
1400 unsigned i, maxp, packets;
1401
1402 if (bytes < 0 || !desc)
1403 return NULL;
1404 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1405 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1406 packets = (bytes + maxp - 1) / maxp;
1407
1408 urb = usb_alloc_urb (packets, GFP_KERNEL);
1409 if (!urb)
1410 return urb;
1411 urb->dev = udev;
1412 urb->pipe = pipe;
1413
1414 urb->number_of_packets = packets;
1415 urb->transfer_buffer_length = bytes;
1416 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
1417 &urb->transfer_dma);
1418 if (!urb->transfer_buffer) {
1419 usb_free_urb (urb);
1420 return NULL;
1421 }
1422 memset (urb->transfer_buffer, 0, bytes);
1423 for (i = 0; i < packets; i++) {
1424 /* here, only the last packet will be short */
1425 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1426 bytes -= urb->iso_frame_desc[i].length;
1427
1428 urb->iso_frame_desc[i].offset = maxp * i;
1429 }
1430
1431 urb->complete = iso_callback;
1432 // urb->context = SET BY CALLER
1433 urb->interval = 1 << (desc->bInterval - 1);
1434 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1435 return urb;
1436 }
1437
1438 static int
1439 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1440 int pipe, struct usb_endpoint_descriptor *desc)
1441 {
1442 struct iso_context context;
1443 struct usb_device *udev;
1444 unsigned i;
1445 unsigned long packets = 0;
1446 int status = 0;
1447 struct urb *urbs[10]; /* FIXME no limit */
1448
1449 if (param->sglen > 10)
1450 return -EDOM;
1451
1452 memset(&context, 0, sizeof context);
1453 context.count = param->iterations * param->sglen;
1454 context.dev = dev;
1455 init_completion (&context.done);
1456 spin_lock_init (&context.lock);
1457
1458 memset (urbs, 0, sizeof urbs);
1459 udev = testdev_to_usbdev (dev);
1460 dev_dbg (&dev->intf->dev,
1461 "... iso period %d %sframes, wMaxPacket %04x\n",
1462 1 << (desc->bInterval - 1),
1463 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1464 le16_to_cpu(desc->wMaxPacketSize));
1465
1466 for (i = 0; i < param->sglen; i++) {
1467 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1468 param->length);
1469 if (!urbs [i]) {
1470 status = -ENOMEM;
1471 goto fail;
1472 }
1473 packets += urbs[i]->number_of_packets;
1474 urbs [i]->context = &context;
1475 }
1476 packets *= param->iterations;
1477 dev_dbg (&dev->intf->dev,
1478 "... total %lu msec (%lu packets)\n",
1479 (packets * (1 << (desc->bInterval - 1)))
1480 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1481 packets);
1482
1483 spin_lock_irq (&context.lock);
1484 for (i = 0; i < param->sglen; i++) {
1485 ++context.pending;
1486 status = usb_submit_urb (urbs [i], GFP_ATOMIC);
1487 if (status < 0) {
1488 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1489 if (i == 0) {
1490 spin_unlock_irq (&context.lock);
1491 goto fail;
1492 }
1493
1494 simple_free_urb (urbs [i]);
1495 context.pending--;
1496 context.submit_error = 1;
1497 break;
1498 }
1499 }
1500 spin_unlock_irq (&context.lock);
1501
1502 wait_for_completion (&context.done);
1503
1504 /*
1505 * Isochronous transfers are expected to fail sometimes. As an
1506 * arbitrary limit, we will report an error if any submissions
1507 * fail or if the transfer failure rate is > 10%.
1508 */
1509 if (status != 0)
1510 ;
1511 else if (context.submit_error)
1512 status = -EACCES;
1513 else if (context.errors > context.packet_count / 10)
1514 status = -EIO;
1515 return status;
1516
1517 fail:
1518 for (i = 0; i < param->sglen; i++) {
1519 if (urbs [i])
1520 simple_free_urb (urbs [i]);
1521 }
1522 return status;
1523 }
1524
1525 /*-------------------------------------------------------------------------*/
1526
1527 /* We only have this one interface to user space, through usbfs.
1528 * User mode code can scan usbfs to find N different devices (maybe on
1529 * different busses) to use when testing, and allocate one thread per
1530 * test. So discovery is simplified, and we have no device naming issues.
1531 *
1532 * Don't use these only as stress/load tests. Use them along with with
1533 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1534 * video capture, and so on. Run different tests at different times, in
1535 * different sequences. Nothing here should interact with other devices,
1536 * except indirectly by consuming USB bandwidth and CPU resources for test
1537 * threads and request completion. But the only way to know that for sure
1538 * is to test when HC queues are in use by many devices.
1539 */
1540
1541 static int
1542 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1543 {
1544 struct usbtest_dev *dev = usb_get_intfdata (intf);
1545 struct usb_device *udev = testdev_to_usbdev (dev);
1546 struct usbtest_param *param = buf;
1547 int retval = -EOPNOTSUPP;
1548 struct urb *urb;
1549 struct scatterlist *sg;
1550 struct usb_sg_request req;
1551 struct timeval start;
1552 unsigned i;
1553
1554 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1555
1556 if (code != USBTEST_REQUEST)
1557 return -EOPNOTSUPP;
1558
1559 if (param->iterations <= 0 || param->length < 0
1560 || param->sglen < 0 || param->vary < 0)
1561 return -EINVAL;
1562
1563 if (mutex_lock_interruptible(&dev->lock))
1564 return -ERESTARTSYS;
1565
1566 if (intf->dev.power.power_state.event != PM_EVENT_ON) {
1567 mutex_unlock(&dev->lock);
1568 return -EHOSTUNREACH;
1569 }
1570
1571 /* some devices, like ez-usb default devices, need a non-default
1572 * altsetting to have any active endpoints. some tests change
1573 * altsettings; force a default so most tests don't need to check.
1574 */
1575 if (dev->info->alt >= 0) {
1576 int res;
1577
1578 if (intf->altsetting->desc.bInterfaceNumber) {
1579 mutex_unlock(&dev->lock);
1580 return -ENODEV;
1581 }
1582 res = set_altsetting (dev, dev->info->alt);
1583 if (res) {
1584 dev_err (&intf->dev,
1585 "set altsetting to %d failed, %d\n",
1586 dev->info->alt, res);
1587 mutex_unlock(&dev->lock);
1588 return res;
1589 }
1590 }
1591
1592 /*
1593 * Just a bunch of test cases that every HCD is expected to handle.
1594 *
1595 * Some may need specific firmware, though it'd be good to have
1596 * one firmware image to handle all the test cases.
1597 *
1598 * FIXME add more tests! cancel requests, verify the data, control
1599 * queueing, concurrent read+write threads, and so on.
1600 */
1601 do_gettimeofday (&start);
1602 switch (param->test_num) {
1603
1604 case 0:
1605 dev_dbg (&intf->dev, "TEST 0: NOP\n");
1606 retval = 0;
1607 break;
1608
1609 /* Simple non-queued bulk I/O tests */
1610 case 1:
1611 if (dev->out_pipe == 0)
1612 break;
1613 dev_dbg (&intf->dev,
1614 "TEST 1: write %d bytes %u times\n",
1615 param->length, param->iterations);
1616 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1617 if (!urb) {
1618 retval = -ENOMEM;
1619 break;
1620 }
1621 // FIRMWARE: bulk sink (maybe accepts short writes)
1622 retval = simple_io (urb, param->iterations, 0, 0, "test1");
1623 simple_free_urb (urb);
1624 break;
1625 case 2:
1626 if (dev->in_pipe == 0)
1627 break;
1628 dev_dbg (&intf->dev,
1629 "TEST 2: read %d bytes %u times\n",
1630 param->length, param->iterations);
1631 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1632 if (!urb) {
1633 retval = -ENOMEM;
1634 break;
1635 }
1636 // FIRMWARE: bulk source (maybe generates short writes)
1637 retval = simple_io (urb, param->iterations, 0, 0, "test2");
1638 simple_free_urb (urb);
1639 break;
1640 case 3:
1641 if (dev->out_pipe == 0 || param->vary == 0)
1642 break;
1643 dev_dbg (&intf->dev,
1644 "TEST 3: write/%d 0..%d bytes %u times\n",
1645 param->vary, param->length, param->iterations);
1646 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1647 if (!urb) {
1648 retval = -ENOMEM;
1649 break;
1650 }
1651 // FIRMWARE: bulk sink (maybe accepts short writes)
1652 retval = simple_io (urb, param->iterations, param->vary,
1653 0, "test3");
1654 simple_free_urb (urb);
1655 break;
1656 case 4:
1657 if (dev->in_pipe == 0 || param->vary == 0)
1658 break;
1659 dev_dbg (&intf->dev,
1660 "TEST 4: read/%d 0..%d bytes %u times\n",
1661 param->vary, param->length, param->iterations);
1662 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1663 if (!urb) {
1664 retval = -ENOMEM;
1665 break;
1666 }
1667 // FIRMWARE: bulk source (maybe generates short writes)
1668 retval = simple_io (urb, param->iterations, param->vary,
1669 0, "test4");
1670 simple_free_urb (urb);
1671 break;
1672
1673 /* Queued bulk I/O tests */
1674 case 5:
1675 if (dev->out_pipe == 0 || param->sglen == 0)
1676 break;
1677 dev_dbg (&intf->dev,
1678 "TEST 5: write %d sglists %d entries of %d bytes\n",
1679 param->iterations,
1680 param->sglen, param->length);
1681 sg = alloc_sglist (param->sglen, param->length, 0);
1682 if (!sg) {
1683 retval = -ENOMEM;
1684 break;
1685 }
1686 // FIRMWARE: bulk sink (maybe accepts short writes)
1687 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1688 &req, sg, param->sglen);
1689 free_sglist (sg, param->sglen);
1690 break;
1691
1692 case 6:
1693 if (dev->in_pipe == 0 || param->sglen == 0)
1694 break;
1695 dev_dbg (&intf->dev,
1696 "TEST 6: read %d sglists %d entries of %d bytes\n",
1697 param->iterations,
1698 param->sglen, param->length);
1699 sg = alloc_sglist (param->sglen, param->length, 0);
1700 if (!sg) {
1701 retval = -ENOMEM;
1702 break;
1703 }
1704 // FIRMWARE: bulk source (maybe generates short writes)
1705 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1706 &req, sg, param->sglen);
1707 free_sglist (sg, param->sglen);
1708 break;
1709 case 7:
1710 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1711 break;
1712 dev_dbg (&intf->dev,
1713 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1714 param->vary, param->iterations,
1715 param->sglen, param->length);
1716 sg = alloc_sglist (param->sglen, param->length, param->vary);
1717 if (!sg) {
1718 retval = -ENOMEM;
1719 break;
1720 }
1721 // FIRMWARE: bulk sink (maybe accepts short writes)
1722 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1723 &req, sg, param->sglen);
1724 free_sglist (sg, param->sglen);
1725 break;
1726 case 8:
1727 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1728 break;
1729 dev_dbg (&intf->dev,
1730 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1731 param->vary, param->iterations,
1732 param->sglen, param->length);
1733 sg = alloc_sglist (param->sglen, param->length, param->vary);
1734 if (!sg) {
1735 retval = -ENOMEM;
1736 break;
1737 }
1738 // FIRMWARE: bulk source (maybe generates short writes)
1739 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1740 &req, sg, param->sglen);
1741 free_sglist (sg, param->sglen);
1742 break;
1743
1744 /* non-queued sanity tests for control (chapter 9 subset) */
1745 case 9:
1746 retval = 0;
1747 dev_dbg (&intf->dev,
1748 "TEST 9: ch9 (subset) control tests, %d times\n",
1749 param->iterations);
1750 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1751 retval = ch9_postconfig (dev);
1752 if (retval)
1753 dbg ("ch9 subset failed, iterations left %d", i);
1754 break;
1755
1756 /* queued control messaging */
1757 case 10:
1758 if (param->sglen == 0)
1759 break;
1760 retval = 0;
1761 dev_dbg (&intf->dev,
1762 "TEST 10: queue %d control calls, %d times\n",
1763 param->sglen,
1764 param->iterations);
1765 retval = test_ctrl_queue (dev, param);
1766 break;
1767
1768 /* simple non-queued unlinks (ring with one urb) */
1769 case 11:
1770 if (dev->in_pipe == 0 || !param->length)
1771 break;
1772 retval = 0;
1773 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n",
1774 param->iterations, param->length);
1775 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1776 retval = unlink_simple (dev, dev->in_pipe,
1777 param->length);
1778 if (retval)
1779 dev_dbg (&intf->dev, "unlink reads failed %d, "
1780 "iterations left %d\n", retval, i);
1781 break;
1782 case 12:
1783 if (dev->out_pipe == 0 || !param->length)
1784 break;
1785 retval = 0;
1786 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n",
1787 param->iterations, param->length);
1788 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1789 retval = unlink_simple (dev, dev->out_pipe,
1790 param->length);
1791 if (retval)
1792 dev_dbg (&intf->dev, "unlink writes failed %d, "
1793 "iterations left %d\n", retval, i);
1794 break;
1795
1796 /* ep halt tests */
1797 case 13:
1798 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1799 break;
1800 retval = 0;
1801 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n",
1802 param->iterations);
1803 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1804 retval = halt_simple (dev);
1805
1806 if (retval)
1807 DBG (dev, "halts failed, iterations left %d\n", i);
1808 break;
1809
1810 /* control write tests */
1811 case 14:
1812 if (!dev->info->ctrl_out)
1813 break;
1814 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1815 param->iterations,
1816 realworld ? 1 : 0, param->length,
1817 param->vary);
1818 retval = ctrl_out (dev, param->iterations,
1819 param->length, param->vary);
1820 break;
1821
1822 /* iso write tests */
1823 case 15:
1824 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1825 break;
1826 dev_dbg (&intf->dev,
1827 "TEST 15: write %d iso, %d entries of %d bytes\n",
1828 param->iterations,
1829 param->sglen, param->length);
1830 // FIRMWARE: iso sink
1831 retval = test_iso_queue (dev, param,
1832 dev->out_iso_pipe, dev->iso_out);
1833 break;
1834
1835 /* iso read tests */
1836 case 16:
1837 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1838 break;
1839 dev_dbg (&intf->dev,
1840 "TEST 16: read %d iso, %d entries of %d bytes\n",
1841 param->iterations,
1842 param->sglen, param->length);
1843 // FIRMWARE: iso source
1844 retval = test_iso_queue (dev, param,
1845 dev->in_iso_pipe, dev->iso_in);
1846 break;
1847
1848 // FIXME unlink from queue (ring with N urbs)
1849
1850 // FIXME scatterlist cancel (needs helper thread)
1851
1852 }
1853 do_gettimeofday (&param->duration);
1854 param->duration.tv_sec -= start.tv_sec;
1855 param->duration.tv_usec -= start.tv_usec;
1856 if (param->duration.tv_usec < 0) {
1857 param->duration.tv_usec += 1000 * 1000;
1858 param->duration.tv_sec -= 1;
1859 }
1860 mutex_unlock(&dev->lock);
1861 return retval;
1862 }
1863
1864 /*-------------------------------------------------------------------------*/
1865
1866 static unsigned force_interrupt = 0;
1867 module_param (force_interrupt, uint, 0);
1868 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1869
1870 #ifdef GENERIC
1871 static unsigned short vendor;
1872 module_param(vendor, ushort, 0);
1873 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1874
1875 static unsigned short product;
1876 module_param(product, ushort, 0);
1877 MODULE_PARM_DESC (product, "product code (from vendor)");
1878 #endif
1879
1880 static int
1881 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1882 {
1883 struct usb_device *udev;
1884 struct usbtest_dev *dev;
1885 struct usbtest_info *info;
1886 char *rtest, *wtest;
1887 char *irtest, *iwtest;
1888
1889 udev = interface_to_usbdev (intf);
1890
1891 #ifdef GENERIC
1892 /* specify devices by module parameters? */
1893 if (id->match_flags == 0) {
1894 /* vendor match required, product match optional */
1895 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1896 return -ENODEV;
1897 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1898 return -ENODEV;
1899 dbg ("matched module params, vend=0x%04x prod=0x%04x",
1900 le16_to_cpu(udev->descriptor.idVendor),
1901 le16_to_cpu(udev->descriptor.idProduct));
1902 }
1903 #endif
1904
1905 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1906 if (!dev)
1907 return -ENOMEM;
1908 info = (struct usbtest_info *) id->driver_info;
1909 dev->info = info;
1910 mutex_init(&dev->lock);
1911
1912 dev->intf = intf;
1913
1914 /* cacheline-aligned scratch for i/o */
1915 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) {
1916 kfree (dev);
1917 return -ENOMEM;
1918 }
1919
1920 /* NOTE this doesn't yet test the handful of difference that are
1921 * visible with high speed interrupts: bigger maxpacket (1K) and
1922 * "high bandwidth" modes (up to 3 packets/uframe).
1923 */
1924 rtest = wtest = "";
1925 irtest = iwtest = "";
1926 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1927 if (info->ep_in) {
1928 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1929 rtest = " intr-in";
1930 }
1931 if (info->ep_out) {
1932 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1933 wtest = " intr-out";
1934 }
1935 } else {
1936 if (info->autoconf) {
1937 int status;
1938
1939 status = get_endpoints (dev, intf);
1940 if (status < 0) {
1941 dbg ("couldn't get endpoints, %d\n", status);
1942 return status;
1943 }
1944 /* may find bulk or ISO pipes */
1945 } else {
1946 if (info->ep_in)
1947 dev->in_pipe = usb_rcvbulkpipe (udev,
1948 info->ep_in);
1949 if (info->ep_out)
1950 dev->out_pipe = usb_sndbulkpipe (udev,
1951 info->ep_out);
1952 }
1953 if (dev->in_pipe)
1954 rtest = " bulk-in";
1955 if (dev->out_pipe)
1956 wtest = " bulk-out";
1957 if (dev->in_iso_pipe)
1958 irtest = " iso-in";
1959 if (dev->out_iso_pipe)
1960 iwtest = " iso-out";
1961 }
1962
1963 usb_set_intfdata (intf, dev);
1964 dev_info (&intf->dev, "%s\n", info->name);
1965 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1966 ({ char *tmp;
1967 switch (udev->speed) {
1968 case USB_SPEED_LOW: tmp = "low"; break;
1969 case USB_SPEED_FULL: tmp = "full"; break;
1970 case USB_SPEED_HIGH: tmp = "high"; break;
1971 default: tmp = "unknown"; break;
1972 }; tmp; }),
1973 info->ctrl_out ? " in/out" : "",
1974 rtest, wtest,
1975 irtest, iwtest,
1976 info->alt >= 0 ? " (+alt)" : "");
1977 return 0;
1978 }
1979
1980 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
1981 {
1982 return 0;
1983 }
1984
1985 static int usbtest_resume (struct usb_interface *intf)
1986 {
1987 return 0;
1988 }
1989
1990
1991 static void usbtest_disconnect (struct usb_interface *intf)
1992 {
1993 struct usbtest_dev *dev = usb_get_intfdata (intf);
1994
1995 usb_set_intfdata (intf, NULL);
1996 dev_dbg (&intf->dev, "disconnect\n");
1997 kfree (dev);
1998 }
1999
2000 /* Basic testing only needs a device that can source or sink bulk traffic.
2001 * Any device can test control transfers (default with GENERIC binding).
2002 *
2003 * Several entries work with the default EP0 implementation that's built
2004 * into EZ-USB chips. There's a default vendor ID which can be overridden
2005 * by (very) small config EEPROMS, but otherwise all these devices act
2006 * identically until firmware is loaded: only EP0 works. It turns out
2007 * to be easy to make other endpoints work, without modifying that EP0
2008 * behavior. For now, we expect that kind of firmware.
2009 */
2010
2011 /* an21xx or fx versions of ez-usb */
2012 static struct usbtest_info ez1_info = {
2013 .name = "EZ-USB device",
2014 .ep_in = 2,
2015 .ep_out = 2,
2016 .alt = 1,
2017 };
2018
2019 /* fx2 version of ez-usb */
2020 static struct usbtest_info ez2_info = {
2021 .name = "FX2 device",
2022 .ep_in = 6,
2023 .ep_out = 2,
2024 .alt = 1,
2025 };
2026
2027 /* ezusb family device with dedicated usb test firmware,
2028 */
2029 static struct usbtest_info fw_info = {
2030 .name = "usb test device",
2031 .ep_in = 2,
2032 .ep_out = 2,
2033 .alt = 1,
2034 .autoconf = 1, // iso and ctrl_out need autoconf
2035 .ctrl_out = 1,
2036 .iso = 1, // iso_ep's are #8 in/out
2037 };
2038
2039 /* peripheral running Linux and 'zero.c' test firmware, or
2040 * its user-mode cousin. different versions of this use
2041 * different hardware with the same vendor/product codes.
2042 * host side MUST rely on the endpoint descriptors.
2043 */
2044 static struct usbtest_info gz_info = {
2045 .name = "Linux gadget zero",
2046 .autoconf = 1,
2047 .ctrl_out = 1,
2048 .alt = 0,
2049 };
2050
2051 static struct usbtest_info um_info = {
2052 .name = "Linux user mode test driver",
2053 .autoconf = 1,
2054 .alt = -1,
2055 };
2056
2057 static struct usbtest_info um2_info = {
2058 .name = "Linux user mode ISO test driver",
2059 .autoconf = 1,
2060 .iso = 1,
2061 .alt = -1,
2062 };
2063
2064 #ifdef IBOT2
2065 /* this is a nice source of high speed bulk data;
2066 * uses an FX2, with firmware provided in the device
2067 */
2068 static struct usbtest_info ibot2_info = {
2069 .name = "iBOT2 webcam",
2070 .ep_in = 2,
2071 .alt = -1,
2072 };
2073 #endif
2074
2075 #ifdef GENERIC
2076 /* we can use any device to test control traffic */
2077 static struct usbtest_info generic_info = {
2078 .name = "Generic USB device",
2079 .alt = -1,
2080 };
2081 #endif
2082
2083 // FIXME remove this
2084 static struct usbtest_info hact_info = {
2085 .name = "FX2/hact",
2086 //.ep_in = 6,
2087 .ep_out = 2,
2088 .alt = -1,
2089 };
2090
2091
2092 static struct usb_device_id id_table [] = {
2093
2094 { USB_DEVICE (0x0547, 0x1002),
2095 .driver_info = (unsigned long) &hact_info,
2096 },
2097
2098 /*-------------------------------------------------------------*/
2099
2100 /* EZ-USB devices which download firmware to replace (or in our
2101 * case augment) the default device implementation.
2102 */
2103
2104 /* generic EZ-USB FX controller */
2105 { USB_DEVICE (0x0547, 0x2235),
2106 .driver_info = (unsigned long) &ez1_info,
2107 },
2108
2109 /* CY3671 development board with EZ-USB FX */
2110 { USB_DEVICE (0x0547, 0x0080),
2111 .driver_info = (unsigned long) &ez1_info,
2112 },
2113
2114 /* generic EZ-USB FX2 controller (or development board) */
2115 { USB_DEVICE (0x04b4, 0x8613),
2116 .driver_info = (unsigned long) &ez2_info,
2117 },
2118
2119 /* re-enumerated usb test device firmware */
2120 { USB_DEVICE (0xfff0, 0xfff0),
2121 .driver_info = (unsigned long) &fw_info,
2122 },
2123
2124 /* "Gadget Zero" firmware runs under Linux */
2125 { USB_DEVICE (0x0525, 0xa4a0),
2126 .driver_info = (unsigned long) &gz_info,
2127 },
2128
2129 /* so does a user-mode variant */
2130 { USB_DEVICE (0x0525, 0xa4a4),
2131 .driver_info = (unsigned long) &um_info,
2132 },
2133
2134 /* ... and a user-mode variant that talks iso */
2135 { USB_DEVICE (0x0525, 0xa4a3),
2136 .driver_info = (unsigned long) &um2_info,
2137 },
2138
2139 #ifdef KEYSPAN_19Qi
2140 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2141 // this does not coexist with the real Keyspan 19qi driver!
2142 { USB_DEVICE (0x06cd, 0x010b),
2143 .driver_info = (unsigned long) &ez1_info,
2144 },
2145 #endif
2146
2147 /*-------------------------------------------------------------*/
2148
2149 #ifdef IBOT2
2150 /* iBOT2 makes a nice source of high speed bulk-in data */
2151 // this does not coexist with a real iBOT2 driver!
2152 { USB_DEVICE (0x0b62, 0x0059),
2153 .driver_info = (unsigned long) &ibot2_info,
2154 },
2155 #endif
2156
2157 /*-------------------------------------------------------------*/
2158
2159 #ifdef GENERIC
2160 /* module params can specify devices to use for control tests */
2161 { .driver_info = (unsigned long) &generic_info, },
2162 #endif
2163
2164 /*-------------------------------------------------------------*/
2165
2166 { }
2167 };
2168 MODULE_DEVICE_TABLE (usb, id_table);
2169
2170 static struct usb_driver usbtest_driver = {
2171 .name = "usbtest",
2172 .id_table = id_table,
2173 .probe = usbtest_probe,
2174 .ioctl = usbtest_ioctl,
2175 .disconnect = usbtest_disconnect,
2176 .suspend = usbtest_suspend,
2177 .resume = usbtest_resume,
2178 };
2179
2180 /*-------------------------------------------------------------------------*/
2181
2182 static int __init usbtest_init (void)
2183 {
2184 #ifdef GENERIC
2185 if (vendor)
2186 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product);
2187 #endif
2188 return usb_register (&usbtest_driver);
2189 }
2190 module_init (usbtest_init);
2191
2192 static void __exit usbtest_exit (void)
2193 {
2194 usb_deregister (&usbtest_driver);
2195 }
2196 module_exit (usbtest_exit);
2197
2198 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2199 MODULE_LICENSE ("GPL");
2200
WRT350N Kernel Patches