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usb: fix usbtest halt check on big endian systems
[linux-2.6/mini2440.git] / drivers / usb / misc / usbtest.c
blob81755d06a41926f66180873ad4f2450d2fe33eae
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
10 #include <linux/usb.h>
11
12
13 /*-------------------------------------------------------------------------*/
14
15 // FIXME make these public somewhere; usbdevfs.h?
16 //
17 struct usbtest_param {
18 // inputs
19 unsigned test_num; /* 0..(TEST_CASES-1) */
20 unsigned iterations;
21 unsigned length;
22 unsigned vary;
23 unsigned sglen;
24
25 // outputs
26 struct timeval duration;
27 };
28 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
29
30 /*-------------------------------------------------------------------------*/
31
32 #define GENERIC /* let probe() bind using module params */
33
34 /* Some devices that can be used for testing will have "real" drivers.
35 * Entries for those need to be enabled here by hand, after disabling
36 * that "real" driver.
37 */
38 //#define IBOT2 /* grab iBOT2 webcams */
39 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
40
41 /*-------------------------------------------------------------------------*/
42
43 struct usbtest_info {
44 const char *name;
45 u8 ep_in; /* bulk/intr source */
46 u8 ep_out; /* bulk/intr sink */
47 unsigned autoconf : 1;
48 unsigned ctrl_out : 1;
49 unsigned iso : 1; /* try iso in/out */
50 int alt;
51 };
52
53 /* this is accessed only through usbfs ioctl calls.
54 * one ioctl to issue a test ... one lock per device.
55 * tests create other threads if they need them.
56 * urbs and buffers are allocated dynamically,
57 * and data generated deterministically.
58 */
59 struct usbtest_dev {
60 struct usb_interface *intf;
61 struct usbtest_info *info;
62 int in_pipe;
63 int out_pipe;
64 int in_iso_pipe;
65 int out_iso_pipe;
66 struct usb_endpoint_descriptor *iso_in, *iso_out;
67 struct semaphore sem;
68
69 #define TBUF_SIZE 256
70 u8 *buf;
71 };
72
73 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
74 {
75 return interface_to_usbdev (test->intf);
76 }
77
78 /* set up all urbs so they can be used with either bulk or interrupt */
79 #define INTERRUPT_RATE 1 /* msec/transfer */
80
81 #define xprintk(tdev,level,fmt,args...) \
82 dev_printk(level , &(tdev)->intf->dev , fmt , ## args)
83
84 #ifdef DEBUG
85 #define DBG(dev,fmt,args...) \
86 xprintk(dev , KERN_DEBUG , fmt , ## args)
87 #else
88 #define DBG(dev,fmt,args...) \
89 do { } while (0)
90 #endif /* DEBUG */
91
92 #ifdef VERBOSE
93 #define VDBG DBG
94 #else
95 #define VDBG(dev,fmt,args...) \
96 do { } while (0)
97 #endif /* VERBOSE */
98
99 #define ERROR(dev,fmt,args...) \
100 xprintk(dev , KERN_ERR , fmt , ## args)
101 #define WARN(dev,fmt,args...) \
102 xprintk(dev , KERN_WARNING , fmt , ## args)
103 #define INFO(dev,fmt,args...) \
104 xprintk(dev , KERN_INFO , fmt , ## args)
105
106 /*-------------------------------------------------------------------------*/
107
108 static int
109 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
110 {
111 int tmp;
112 struct usb_host_interface *alt;
113 struct usb_host_endpoint *in, *out;
114 struct usb_host_endpoint *iso_in, *iso_out;
115 struct usb_device *udev;
116
117 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
118 unsigned ep;
119
120 in = out = NULL;
121 iso_in = iso_out = NULL;
122 alt = intf->altsetting + tmp;
123
124 /* take the first altsetting with in-bulk + out-bulk;
125 * ignore other endpoints and altsetttings.
126 */
127 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
128 struct usb_host_endpoint *e;
129
130 e = alt->endpoint + ep;
131 switch (e->desc.bmAttributes) {
132 case USB_ENDPOINT_XFER_BULK:
133 break;
134 case USB_ENDPOINT_XFER_ISOC:
135 if (dev->info->iso)
136 goto try_iso;
137 // FALLTHROUGH
138 default:
139 continue;
140 }
141 if (usb_endpoint_dir_in(&e->desc)) {
142 if (!in)
143 in = e;
144 } else {
145 if (!out)
146 out = e;
147 }
148 continue;
149 try_iso:
150 if (usb_endpoint_dir_in(&e->desc)) {
151 if (!iso_in)
152 iso_in = e;
153 } else {
154 if (!iso_out)
155 iso_out = e;
156 }
157 }
158 if ((in && out) || (iso_in && iso_out))
159 goto found;
160 }
161 return -EINVAL;
162
163 found:
164 udev = testdev_to_usbdev (dev);
165 if (alt->desc.bAlternateSetting != 0) {
166 tmp = usb_set_interface (udev,
167 alt->desc.bInterfaceNumber,
168 alt->desc.bAlternateSetting);
169 if (tmp < 0)
170 return tmp;
171 }
172
173 if (in) {
174 dev->in_pipe = usb_rcvbulkpipe (udev,
175 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
176 dev->out_pipe = usb_sndbulkpipe (udev,
177 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
178 }
179 if (iso_in) {
180 dev->iso_in = &iso_in->desc;
181 dev->in_iso_pipe = usb_rcvisocpipe (udev,
182 iso_in->desc.bEndpointAddress
183 & USB_ENDPOINT_NUMBER_MASK);
184 dev->iso_out = &iso_out->desc;
185 dev->out_iso_pipe = usb_sndisocpipe (udev,
186 iso_out->desc.bEndpointAddress
187 & USB_ENDPOINT_NUMBER_MASK);
188 }
189 return 0;
190 }
191
192 /*-------------------------------------------------------------------------*/
193
194 /* Support for testing basic non-queued I/O streams.
195 *
196 * These just package urbs as requests that can be easily canceled.
197 * Each urb's data buffer is dynamically allocated; callers can fill
198 * them with non-zero test data (or test for it) when appropriate.
199 */
200
201 static void simple_callback (struct urb *urb)
202 {
203 complete ((struct completion *) urb->context);
204 }
205
206 static struct urb *simple_alloc_urb (
207 struct usb_device *udev,
208 int pipe,
209 unsigned long bytes
210 )
211 {
212 struct urb *urb;
213
214 if (bytes < 0)
215 return NULL;
216 urb = usb_alloc_urb (0, GFP_KERNEL);
217 if (!urb)
218 return urb;
219 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
220 urb->interval = (udev->speed == USB_SPEED_HIGH)
221 ? (INTERRUPT_RATE << 3)
222 : INTERRUPT_RATE;
223 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
224 if (usb_pipein (pipe))
225 urb->transfer_flags |= URB_SHORT_NOT_OK;
226 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
227 &urb->transfer_dma);
228 if (!urb->transfer_buffer) {
229 usb_free_urb (urb);
230 urb = NULL;
231 } else
232 memset (urb->transfer_buffer, 0, bytes);
233 return urb;
234 }
235
236 static unsigned pattern = 0;
237 module_param (pattern, uint, S_IRUGO);
238 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)");
239
240 static inline void simple_fill_buf (struct urb *urb)
241 {
242 unsigned i;
243 u8 *buf = urb->transfer_buffer;
244 unsigned len = urb->transfer_buffer_length;
245
246 switch (pattern) {
247 default:
248 // FALLTHROUGH
249 case 0:
250 memset (buf, 0, len);
251 break;
252 case 1: /* mod63 */
253 for (i = 0; i < len; i++)
254 *buf++ = (u8) (i % 63);
255 break;
256 }
257 }
258
259 static inline int simple_check_buf (struct urb *urb)
260 {
261 unsigned i;
262 u8 expected;
263 u8 *buf = urb->transfer_buffer;
264 unsigned len = urb->actual_length;
265
266 for (i = 0; i < len; i++, buf++) {
267 switch (pattern) {
268 /* all-zeroes has no synchronization issues */
269 case 0:
270 expected = 0;
271 break;
272 /* mod63 stays in sync with short-terminated transfers,
273 * or otherwise when host and gadget agree on how large
274 * each usb transfer request should be. resync is done
275 * with set_interface or set_config.
276 */
277 case 1: /* mod63 */
278 expected = i % 63;
279 break;
280 /* always fail unsupported patterns */
281 default:
282 expected = !*buf;
283 break;
284 }
285 if (*buf == expected)
286 continue;
287 dbg ("buf[%d] = %d (not %d)", i, *buf, expected);
288 return -EINVAL;
289 }
290 return 0;
291 }
292
293 static void simple_free_urb (struct urb *urb)
294 {
295 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
296 urb->transfer_buffer, urb->transfer_dma);
297 usb_free_urb (urb);
298 }
299
300 static int simple_io (
301 struct urb *urb,
302 int iterations,
303 int vary,
304 int expected,
305 const char *label
306 )
307 {
308 struct usb_device *udev = urb->dev;
309 int max = urb->transfer_buffer_length;
310 struct completion completion;
311 int retval = 0;
312
313 urb->context = &completion;
314 while (retval == 0 && iterations-- > 0) {
315 init_completion (&completion);
316 if (usb_pipeout (urb->pipe))
317 simple_fill_buf (urb);
318 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0)
319 break;
320
321 /* NOTE: no timeouts; can't be broken out of by interrupt */
322 wait_for_completion (&completion);
323 retval = urb->status;
324 urb->dev = udev;
325 if (retval == 0 && usb_pipein (urb->pipe))
326 retval = simple_check_buf (urb);
327
328 if (vary) {
329 int len = urb->transfer_buffer_length;
330
331 len += vary;
332 len %= max;
333 if (len == 0)
334 len = (vary < max) ? vary : max;
335 urb->transfer_buffer_length = len;
336 }
337
338 /* FIXME if endpoint halted, clear halt (and log) */
339 }
340 urb->transfer_buffer_length = max;
341
342 if (expected != retval)
343 dev_dbg (&udev->dev,
344 "%s failed, iterations left %d, status %d (not %d)\n",
345 label, iterations, retval, expected);
346 return retval;
347 }
348
349
350 /*-------------------------------------------------------------------------*/
351
352 /* We use scatterlist primitives to test queued I/O.
353 * Yes, this also tests the scatterlist primitives.
354 */
355
356 static void free_sglist (struct scatterlist *sg, int nents)
357 {
358 unsigned i;
359
360 if (!sg)
361 return;
362 for (i = 0; i < nents; i++) {
363 if (!sg_page(&sg[i]))
364 continue;
365 kfree (sg_virt(&sg[i]));
366 }
367 kfree (sg);
368 }
369
370 static struct scatterlist *
371 alloc_sglist (int nents, int max, int vary)
372 {
373 struct scatterlist *sg;
374 unsigned i;
375 unsigned size = max;
376
377 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL);
378 if (!sg)
379 return NULL;
380
381 for (i = 0; i < nents; i++) {
382 char *buf;
383 unsigned j;
384
385 buf = kzalloc (size, GFP_KERNEL);
386 if (!buf) {
387 free_sglist (sg, i);
388 return NULL;
389 }
390
391 /* kmalloc pages are always physically contiguous! */
392 sg_init_one(&sg[i], buf, size);
393
394 switch (pattern) {
395 case 0:
396 /* already zeroed */
397 break;
398 case 1:
399 for (j = 0; j < size; j++)
400 *buf++ = (u8) (j % 63);
401 break;
402 }
403
404 if (vary) {
405 size += vary;
406 size %= max;
407 if (size == 0)
408 size = (vary < max) ? vary : max;
409 }
410 }
411
412 return sg;
413 }
414
415 static int perform_sglist (
416 struct usb_device *udev,
417 unsigned iterations,
418 int pipe,
419 struct usb_sg_request *req,
420 struct scatterlist *sg,
421 int nents
422 )
423 {
424 int retval = 0;
425
426 while (retval == 0 && iterations-- > 0) {
427 retval = usb_sg_init (req, udev, pipe,
428 (udev->speed == USB_SPEED_HIGH)
429 ? (INTERRUPT_RATE << 3)
430 : INTERRUPT_RATE,
431 sg, nents, 0, GFP_KERNEL);
432
433 if (retval)
434 break;
435 usb_sg_wait (req);
436 retval = req->status;
437
438 /* FIXME check resulting data pattern */
439
440 /* FIXME if endpoint halted, clear halt (and log) */
441 }
442
443 // FIXME for unlink or fault handling tests, don't report
444 // failure if retval is as we expected ...
445
446 if (retval)
447 dbg ("perform_sglist failed, iterations left %d, status %d",
448 iterations, retval);
449 return retval;
450 }
451
452
453 /*-------------------------------------------------------------------------*/
454
455 /* unqueued control message testing
456 *
457 * there's a nice set of device functional requirements in chapter 9 of the
458 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
459 * special test firmware.
460 *
461 * we know the device is configured (or suspended) by the time it's visible
462 * through usbfs. we can't change that, so we won't test enumeration (which
463 * worked 'well enough' to get here, this time), power management (ditto),
464 * or remote wakeup (which needs human interaction).
465 */
466
467 static unsigned realworld = 1;
468 module_param (realworld, uint, 0);
469 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
470
471 static int get_altsetting (struct usbtest_dev *dev)
472 {
473 struct usb_interface *iface = dev->intf;
474 struct usb_device *udev = interface_to_usbdev (iface);
475 int retval;
476
477 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
478 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
479 0, iface->altsetting [0].desc.bInterfaceNumber,
480 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
481 switch (retval) {
482 case 1:
483 return dev->buf [0];
484 case 0:
485 retval = -ERANGE;
486 // FALLTHROUGH
487 default:
488 return retval;
489 }
490 }
491
492 static int set_altsetting (struct usbtest_dev *dev, int alternate)
493 {
494 struct usb_interface *iface = dev->intf;
495 struct usb_device *udev;
496
497 if (alternate < 0 || alternate >= 256)
498 return -EINVAL;
499
500 udev = interface_to_usbdev (iface);
501 return usb_set_interface (udev,
502 iface->altsetting [0].desc.bInterfaceNumber,
503 alternate);
504 }
505
506 static int is_good_config (char *buf, int len)
507 {
508 struct usb_config_descriptor *config;
509
510 if (len < sizeof *config)
511 return 0;
512 config = (struct usb_config_descriptor *) buf;
513
514 switch (config->bDescriptorType) {
515 case USB_DT_CONFIG:
516 case USB_DT_OTHER_SPEED_CONFIG:
517 if (config->bLength != 9) {
518 dbg ("bogus config descriptor length");
519 return 0;
520 }
521 /* this bit 'must be 1' but often isn't */
522 if (!realworld && !(config->bmAttributes & 0x80)) {
523 dbg ("high bit of config attributes not set");
524 return 0;
525 }
526 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
527 dbg ("reserved config bits set");
528 return 0;
529 }
530 break;
531 default:
532 return 0;
533 }
534
535 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
536 return 1;
537 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
538 return 1;
539 dbg ("bogus config descriptor read size");
540 return 0;
541 }
542
543 /* sanity test for standard requests working with usb_control_mesg() and some
544 * of the utility functions which use it.
545 *
546 * this doesn't test how endpoint halts behave or data toggles get set, since
547 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
548 * halt or toggle). toggle testing is impractical without support from hcds.
549 *
550 * this avoids failing devices linux would normally work with, by not testing
551 * config/altsetting operations for devices that only support their defaults.
552 * such devices rarely support those needless operations.
553 *
554 * NOTE that since this is a sanity test, it's not examining boundary cases
555 * to see if usbcore, hcd, and device all behave right. such testing would
556 * involve varied read sizes and other operation sequences.
557 */
558 static int ch9_postconfig (struct usbtest_dev *dev)
559 {
560 struct usb_interface *iface = dev->intf;
561 struct usb_device *udev = interface_to_usbdev (iface);
562 int i, alt, retval;
563
564 /* [9.2.3] if there's more than one altsetting, we need to be able to
565 * set and get each one. mostly trusts the descriptors from usbcore.
566 */
567 for (i = 0; i < iface->num_altsetting; i++) {
568
569 /* 9.2.3 constrains the range here */
570 alt = iface->altsetting [i].desc.bAlternateSetting;
571 if (alt < 0 || alt >= iface->num_altsetting) {
572 dev_dbg (&iface->dev,
573 "invalid alt [%d].bAltSetting = %d\n",
574 i, alt);
575 }
576
577 /* [real world] get/set unimplemented if there's only one */
578 if (realworld && iface->num_altsetting == 1)
579 continue;
580
581 /* [9.4.10] set_interface */
582 retval = set_altsetting (dev, alt);
583 if (retval) {
584 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n",
585 alt, retval);
586 return retval;
587 }
588
589 /* [9.4.4] get_interface always works */
590 retval = get_altsetting (dev);
591 if (retval != alt) {
592 dev_dbg (&iface->dev, "get alt should be %d, was %d\n",
593 alt, retval);
594 return (retval < 0) ? retval : -EDOM;
595 }
596
597 }
598
599 /* [real world] get_config unimplemented if there's only one */
600 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
601 int expected = udev->actconfig->desc.bConfigurationValue;
602
603 /* [9.4.2] get_configuration always works
604 * ... although some cheap devices (like one TI Hub I've got)
605 * won't return config descriptors except before set_config.
606 */
607 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
608 USB_REQ_GET_CONFIGURATION,
609 USB_DIR_IN | USB_RECIP_DEVICE,
610 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
611 if (retval != 1 || dev->buf [0] != expected) {
612 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n",
613 retval, dev->buf[0], expected);
614 return (retval < 0) ? retval : -EDOM;
615 }
616 }
617
618 /* there's always [9.4.3] a device descriptor [9.6.1] */
619 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
620 dev->buf, sizeof udev->descriptor);
621 if (retval != sizeof udev->descriptor) {
622 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval);
623 return (retval < 0) ? retval : -EDOM;
624 }
625
626 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
627 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
628 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
629 dev->buf, TBUF_SIZE);
630 if (!is_good_config (dev->buf, retval)) {
631 dev_dbg (&iface->dev,
632 "config [%d] descriptor --> %d\n",
633 i, retval);
634 return (retval < 0) ? retval : -EDOM;
635 }
636
637 // FIXME cross-checking udev->config[i] to make sure usbcore
638 // parsed it right (etc) would be good testing paranoia
639 }
640
641 /* and sometimes [9.2.6.6] speed dependent descriptors */
642 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
643 struct usb_qualifier_descriptor *d = NULL;
644
645 /* device qualifier [9.6.2] */
646 retval = usb_get_descriptor (udev,
647 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
648 sizeof (struct usb_qualifier_descriptor));
649 if (retval == -EPIPE) {
650 if (udev->speed == USB_SPEED_HIGH) {
651 dev_dbg (&iface->dev,
652 "hs dev qualifier --> %d\n",
653 retval);
654 return (retval < 0) ? retval : -EDOM;
655 }
656 /* usb2.0 but not high-speed capable; fine */
657 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
658 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval);
659 return (retval < 0) ? retval : -EDOM;
660 } else
661 d = (struct usb_qualifier_descriptor *) dev->buf;
662
663 /* might not have [9.6.2] any other-speed configs [9.6.4] */
664 if (d) {
665 unsigned max = d->bNumConfigurations;
666 for (i = 0; i < max; i++) {
667 retval = usb_get_descriptor (udev,
668 USB_DT_OTHER_SPEED_CONFIG, i,
669 dev->buf, TBUF_SIZE);
670 if (!is_good_config (dev->buf, retval)) {
671 dev_dbg (&iface->dev,
672 "other speed config --> %d\n",
673 retval);
674 return (retval < 0) ? retval : -EDOM;
675 }
676 }
677 }
678 }
679 // FIXME fetch strings from at least the device descriptor
680
681 /* [9.4.5] get_status always works */
682 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
683 if (retval != 2) {
684 dev_dbg (&iface->dev, "get dev status --> %d\n", retval);
685 return (retval < 0) ? retval : -EDOM;
686 }
687
688 // FIXME configuration.bmAttributes says if we could try to set/clear
689 // the device's remote wakeup feature ... if we can, test that here
690
691 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
692 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
693 if (retval != 2) {
694 dev_dbg (&iface->dev, "get interface status --> %d\n", retval);
695 return (retval < 0) ? retval : -EDOM;
696 }
697 // FIXME get status for each endpoint in the interface
698
699 return 0;
700 }
701
702 /*-------------------------------------------------------------------------*/
703
704 /* use ch9 requests to test whether:
705 * (a) queues work for control, keeping N subtests queued and
706 * active (auto-resubmit) for M loops through the queue.
707 * (b) protocol stalls (control-only) will autorecover.
708 * it's not like bulk/intr; no halt clearing.
709 * (c) short control reads are reported and handled.
710 * (d) queues are always processed in-order
711 */
712
713 struct ctrl_ctx {
714 spinlock_t lock;
715 struct usbtest_dev *dev;
716 struct completion complete;
717 unsigned count;
718 unsigned pending;
719 int status;
720 struct urb **urb;
721 struct usbtest_param *param;
722 int last;
723 };
724
725 #define NUM_SUBCASES 15 /* how many test subcases here? */
726
727 struct subcase {
728 struct usb_ctrlrequest setup;
729 int number;
730 int expected;
731 };
732
733 static void ctrl_complete (struct urb *urb)
734 {
735 struct ctrl_ctx *ctx = urb->context;
736 struct usb_ctrlrequest *reqp;
737 struct subcase *subcase;
738 int status = urb->status;
739
740 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
741 subcase = container_of (reqp, struct subcase, setup);
742
743 spin_lock (&ctx->lock);
744 ctx->count--;
745 ctx->pending--;
746
747 /* queue must transfer and complete in fifo order, unless
748 * usb_unlink_urb() is used to unlink something not at the
749 * physical queue head (not tested).
750 */
751 if (subcase->number > 0) {
752 if ((subcase->number - ctx->last) != 1) {
753 dbg ("subcase %d completed out of order, last %d",
754 subcase->number, ctx->last);
755 status = -EDOM;
756 ctx->last = subcase->number;
757 goto error;
758 }
759 }
760 ctx->last = subcase->number;
761
762 /* succeed or fault in only one way? */
763 if (status == subcase->expected)
764 status = 0;
765
766 /* async unlink for cleanup? */
767 else if (status != -ECONNRESET) {
768
769 /* some faults are allowed, not required */
770 if (subcase->expected > 0 && (
771 ((status == -subcase->expected /* happened */
772 || status == 0)))) /* didn't */
773 status = 0;
774 /* sometimes more than one fault is allowed */
775 else if (subcase->number == 12 && status == -EPIPE)
776 status = 0;
777 else
778 dbg ("subtest %d error, status %d",
779 subcase->number, status);
780 }
781
782 /* unexpected status codes mean errors; ideally, in hardware */
783 if (status) {
784 error:
785 if (ctx->status == 0) {
786 int i;
787
788 ctx->status = status;
789 info ("control queue %02x.%02x, err %d, %d left",
790 reqp->bRequestType, reqp->bRequest,
791 status, ctx->count);
792
793 /* FIXME this "unlink everything" exit route should
794 * be a separate test case.
795 */
796
797 /* unlink whatever's still pending */
798 for (i = 1; i < ctx->param->sglen; i++) {
799 struct urb *u = ctx->urb [
800 (i + subcase->number) % ctx->param->sglen];
801
802 if (u == urb || !u->dev)
803 continue;
804 spin_unlock(&ctx->lock);
805 status = usb_unlink_urb (u);
806 spin_lock(&ctx->lock);
807 switch (status) {
808 case -EINPROGRESS:
809 case -EBUSY:
810 case -EIDRM:
811 continue;
812 default:
813 dbg ("urb unlink --> %d", status);
814 }
815 }
816 status = ctx->status;
817 }
818 }
819
820 /* resubmit if we need to, else mark this as done */
821 if ((status == 0) && (ctx->pending < ctx->count)) {
822 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) {
823 dbg ("can't resubmit ctrl %02x.%02x, err %d",
824 reqp->bRequestType, reqp->bRequest, status);
825 urb->dev = NULL;
826 } else
827 ctx->pending++;
828 } else
829 urb->dev = NULL;
830
831 /* signal completion when nothing's queued */
832 if (ctx->pending == 0)
833 complete (&ctx->complete);
834 spin_unlock (&ctx->lock);
835 }
836
837 static int
838 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
839 {
840 struct usb_device *udev = testdev_to_usbdev (dev);
841 struct urb **urb;
842 struct ctrl_ctx context;
843 int i;
844
845 spin_lock_init (&context.lock);
846 context.dev = dev;
847 init_completion (&context.complete);
848 context.count = param->sglen * param->iterations;
849 context.pending = 0;
850 context.status = -ENOMEM;
851 context.param = param;
852 context.last = -1;
853
854 /* allocate and init the urbs we'll queue.
855 * as with bulk/intr sglists, sglen is the queue depth; it also
856 * controls which subtests run (more tests than sglen) or rerun.
857 */
858 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
859 if (!urb)
860 return -ENOMEM;
861 for (i = 0; i < param->sglen; i++) {
862 int pipe = usb_rcvctrlpipe (udev, 0);
863 unsigned len;
864 struct urb *u;
865 struct usb_ctrlrequest req;
866 struct subcase *reqp;
867 int expected = 0;
868
869 /* requests here are mostly expected to succeed on any
870 * device, but some are chosen to trigger protocol stalls
871 * or short reads.
872 */
873 memset (&req, 0, sizeof req);
874 req.bRequest = USB_REQ_GET_DESCRIPTOR;
875 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
876
877 switch (i % NUM_SUBCASES) {
878 case 0: // get device descriptor
879 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
880 len = sizeof (struct usb_device_descriptor);
881 break;
882 case 1: // get first config descriptor (only)
883 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
884 len = sizeof (struct usb_config_descriptor);
885 break;
886 case 2: // get altsetting (OFTEN STALLS)
887 req.bRequest = USB_REQ_GET_INTERFACE;
888 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
889 // index = 0 means first interface
890 len = 1;
891 expected = EPIPE;
892 break;
893 case 3: // get interface status
894 req.bRequest = USB_REQ_GET_STATUS;
895 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
896 // interface 0
897 len = 2;
898 break;
899 case 4: // get device status
900 req.bRequest = USB_REQ_GET_STATUS;
901 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
902 len = 2;
903 break;
904 case 5: // get device qualifier (MAY STALL)
905 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
906 len = sizeof (struct usb_qualifier_descriptor);
907 if (udev->speed != USB_SPEED_HIGH)
908 expected = EPIPE;
909 break;
910 case 6: // get first config descriptor, plus interface
911 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
912 len = sizeof (struct usb_config_descriptor);
913 len += sizeof (struct usb_interface_descriptor);
914 break;
915 case 7: // get interface descriptor (ALWAYS STALLS)
916 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
917 // interface == 0
918 len = sizeof (struct usb_interface_descriptor);
919 expected = EPIPE;
920 break;
921 // NOTE: two consecutive stalls in the queue here.
922 // that tests fault recovery a bit more aggressively.
923 case 8: // clear endpoint halt (USUALLY STALLS)
924 req.bRequest = USB_REQ_CLEAR_FEATURE;
925 req.bRequestType = USB_RECIP_ENDPOINT;
926 // wValue 0 == ep halt
927 // wIndex 0 == ep0 (shouldn't halt!)
928 len = 0;
929 pipe = usb_sndctrlpipe (udev, 0);
930 expected = EPIPE;
931 break;
932 case 9: // get endpoint status
933 req.bRequest = USB_REQ_GET_STATUS;
934 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
935 // endpoint 0
936 len = 2;
937 break;
938 case 10: // trigger short read (EREMOTEIO)
939 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
940 len = 1024;
941 expected = -EREMOTEIO;
942 break;
943 // NOTE: two consecutive _different_ faults in the queue.
944 case 11: // get endpoint descriptor (ALWAYS STALLS)
945 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
946 // endpoint == 0
947 len = sizeof (struct usb_interface_descriptor);
948 expected = EPIPE;
949 break;
950 // NOTE: sometimes even a third fault in the queue!
951 case 12: // get string 0 descriptor (MAY STALL)
952 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
953 // string == 0, for language IDs
954 len = sizeof (struct usb_interface_descriptor);
955 // may succeed when > 4 languages
956 expected = EREMOTEIO; // or EPIPE, if no strings
957 break;
958 case 13: // short read, resembling case 10
959 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
960 // last data packet "should" be DATA1, not DATA0
961 len = 1024 - udev->descriptor.bMaxPacketSize0;
962 expected = -EREMOTEIO;
963 break;
964 case 14: // short read; try to fill the last packet
965 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
966 // device descriptor size == 18 bytes
967 len = udev->descriptor.bMaxPacketSize0;
968 switch (len) {
969 case 8: len = 24; break;
970 case 16: len = 32; break;
971 }
972 expected = -EREMOTEIO;
973 break;
974 default:
975 err ("bogus number of ctrl queue testcases!");
976 context.status = -EINVAL;
977 goto cleanup;
978 }
979 req.wLength = cpu_to_le16 (len);
980 urb [i] = u = simple_alloc_urb (udev, pipe, len);
981 if (!u)
982 goto cleanup;
983
984 reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL,
985 &u->setup_dma);
986 if (!reqp)
987 goto cleanup;
988 reqp->setup = req;
989 reqp->number = i % NUM_SUBCASES;
990 reqp->expected = expected;
991 u->setup_packet = (char *) &reqp->setup;
992 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
993
994 u->context = &context;
995 u->complete = ctrl_complete;
996 }
997
998 /* queue the urbs */
999 context.urb = urb;
1000 spin_lock_irq (&context.lock);
1001 for (i = 0; i < param->sglen; i++) {
1002 context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
1003 if (context.status != 0) {
1004 dbg ("can't submit urb[%d], status %d",
1005 i, context.status);
1006 context.count = context.pending;
1007 break;
1008 }
1009 context.pending++;
1010 }
1011 spin_unlock_irq (&context.lock);
1012
1013 /* FIXME set timer and time out; provide a disconnect hook */
1014
1015 /* wait for the last one to complete */
1016 if (context.pending > 0)
1017 wait_for_completion (&context.complete);
1018
1019 cleanup:
1020 for (i = 0; i < param->sglen; i++) {
1021 if (!urb [i])
1022 continue;
1023 urb [i]->dev = udev;
1024 if (urb [i]->setup_packet)
1025 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1026 urb [i]->setup_packet,
1027 urb [i]->setup_dma);
1028 simple_free_urb (urb [i]);
1029 }
1030 kfree (urb);
1031 return context.status;
1032 }
1033 #undef NUM_SUBCASES
1034
1035
1036 /*-------------------------------------------------------------------------*/
1037
1038 static void unlink1_callback (struct urb *urb)
1039 {
1040 int status = urb->status;
1041
1042 // we "know" -EPIPE (stall) never happens
1043 if (!status)
1044 status = usb_submit_urb (urb, GFP_ATOMIC);
1045 if (status) {
1046 urb->status = status;
1047 complete ((struct completion *) urb->context);
1048 }
1049 }
1050
1051 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1052 {
1053 struct urb *urb;
1054 struct completion completion;
1055 int retval = 0;
1056
1057 init_completion (&completion);
1058 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1059 if (!urb)
1060 return -ENOMEM;
1061 urb->context = &completion;
1062 urb->complete = unlink1_callback;
1063
1064 /* keep the endpoint busy. there are lots of hc/hcd-internal
1065 * states, and testing should get to all of them over time.
1066 *
1067 * FIXME want additional tests for when endpoint is STALLing
1068 * due to errors, or is just NAKing requests.
1069 */
1070 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) {
1071 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval);
1072 return retval;
1073 }
1074
1075 /* unlinking that should always work. variable delay tests more
1076 * hcd states and code paths, even with little other system load.
1077 */
1078 msleep (jiffies % (2 * INTERRUPT_RATE));
1079 if (async) {
1080 retry:
1081 retval = usb_unlink_urb (urb);
1082 if (retval == -EBUSY || retval == -EIDRM) {
1083 /* we can't unlink urbs while they're completing.
1084 * or if they've completed, and we haven't resubmitted.
1085 * "normal" drivers would prevent resubmission, but
1086 * since we're testing unlink paths, we can't.
1087 */
1088 dev_dbg (&dev->intf->dev, "unlink retry\n");
1089 goto retry;
1090 }
1091 } else
1092 usb_kill_urb (urb);
1093 if (!(retval == 0 || retval == -EINPROGRESS)) {
1094 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval);
1095 return retval;
1096 }
1097
1098 wait_for_completion (&completion);
1099 retval = urb->status;
1100 simple_free_urb (urb);
1101
1102 if (async)
1103 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1104 else
1105 return (retval == -ENOENT || retval == -EPERM) ?
1106 0 : retval - 2000;
1107 }
1108
1109 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1110 {
1111 int retval = 0;
1112
1113 /* test sync and async paths */
1114 retval = unlink1 (dev, pipe, len, 1);
1115 if (!retval)
1116 retval = unlink1 (dev, pipe, len, 0);
1117 return retval;
1118 }
1119
1120 /*-------------------------------------------------------------------------*/
1121
1122 static int verify_not_halted (int ep, struct urb *urb)
1123 {
1124 int retval;
1125 u16 status;
1126
1127 /* shouldn't look or act halted */
1128 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1129 if (retval < 0) {
1130 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval);
1131 return retval;
1132 }
1133 if (status != 0) {
1134 dbg ("ep %02x bogus status: %04x != 0", ep, status);
1135 return -EINVAL;
1136 }
1137 retval = simple_io (urb, 1, 0, 0, __FUNCTION__);
1138 if (retval != 0)
1139 return -EINVAL;
1140 return 0;
1141 }
1142
1143 static int verify_halted (int ep, struct urb *urb)
1144 {
1145 int retval;
1146 u16 status;
1147
1148 /* should look and act halted */
1149 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1150 if (retval < 0) {
1151 dbg ("ep %02x couldn't get halt status, %d", ep, retval);
1152 return retval;
1153 }
1154 le16_to_cpus(&status);
1155 if (status != 1) {
1156 dbg ("ep %02x bogus status: %04x != 1", ep, status);
1157 return -EINVAL;
1158 }
1159 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__);
1160 if (retval != -EPIPE)
1161 return -EINVAL;
1162 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted");
1163 if (retval != -EPIPE)
1164 return -EINVAL;
1165 return 0;
1166 }
1167
1168 static int test_halt (int ep, struct urb *urb)
1169 {
1170 int retval;
1171
1172 /* shouldn't look or act halted now */
1173 retval = verify_not_halted (ep, urb);
1174 if (retval < 0)
1175 return retval;
1176
1177 /* set halt (protocol test only), verify it worked */
1178 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1179 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1180 USB_ENDPOINT_HALT, ep,
1181 NULL, 0, USB_CTRL_SET_TIMEOUT);
1182 if (retval < 0) {
1183 dbg ("ep %02x couldn't set halt, %d", ep, retval);
1184 return retval;
1185 }
1186 retval = verify_halted (ep, urb);
1187 if (retval < 0)
1188 return retval;
1189
1190 /* clear halt (tests API + protocol), verify it worked */
1191 retval = usb_clear_halt (urb->dev, urb->pipe);
1192 if (retval < 0) {
1193 dbg ("ep %02x couldn't clear halt, %d", ep, retval);
1194 return retval;
1195 }
1196 retval = verify_not_halted (ep, urb);
1197 if (retval < 0)
1198 return retval;
1199
1200 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1201
1202 return 0;
1203 }
1204
1205 static int halt_simple (struct usbtest_dev *dev)
1206 {
1207 int ep;
1208 int retval = 0;
1209 struct urb *urb;
1210
1211 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1212 if (urb == NULL)
1213 return -ENOMEM;
1214
1215 if (dev->in_pipe) {
1216 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1217 urb->pipe = dev->in_pipe;
1218 retval = test_halt (ep, urb);
1219 if (retval < 0)
1220 goto done;
1221 }
1222
1223 if (dev->out_pipe) {
1224 ep = usb_pipeendpoint (dev->out_pipe);
1225 urb->pipe = dev->out_pipe;
1226 retval = test_halt (ep, urb);
1227 }
1228 done:
1229 simple_free_urb (urb);
1230 return retval;
1231 }
1232
1233 /*-------------------------------------------------------------------------*/
1234
1235 /* Control OUT tests use the vendor control requests from Intel's
1236 * USB 2.0 compliance test device: write a buffer, read it back.
1237 *
1238 * Intel's spec only _requires_ that it work for one packet, which
1239 * is pretty weak. Some HCDs place limits here; most devices will
1240 * need to be able to handle more than one OUT data packet. We'll
1241 * try whatever we're told to try.
1242 */
1243 static int ctrl_out (struct usbtest_dev *dev,
1244 unsigned count, unsigned length, unsigned vary)
1245 {
1246 unsigned i, j, len;
1247 int retval;
1248 u8 *buf;
1249 char *what = "?";
1250 struct usb_device *udev;
1251
1252 if (length < 1 || length > 0xffff || vary >= length)
1253 return -EINVAL;
1254
1255 buf = kmalloc(length, GFP_KERNEL);
1256 if (!buf)
1257 return -ENOMEM;
1258
1259 udev = testdev_to_usbdev (dev);
1260 len = length;
1261 retval = 0;
1262
1263 /* NOTE: hardware might well act differently if we pushed it
1264 * with lots back-to-back queued requests.
1265 */
1266 for (i = 0; i < count; i++) {
1267 /* write patterned data */
1268 for (j = 0; j < len; j++)
1269 buf [j] = i + j;
1270 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1271 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1272 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1273 if (retval != len) {
1274 what = "write";
1275 if (retval >= 0) {
1276 INFO(dev, "ctrl_out, wlen %d (expected %d)\n",
1277 retval, len);
1278 retval = -EBADMSG;
1279 }
1280 break;
1281 }
1282
1283 /* read it back -- assuming nothing intervened!! */
1284 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1285 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1286 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1287 if (retval != len) {
1288 what = "read";
1289 if (retval >= 0) {
1290 INFO(dev, "ctrl_out, rlen %d (expected %d)\n",
1291 retval, len);
1292 retval = -EBADMSG;
1293 }
1294 break;
1295 }
1296
1297 /* fail if we can't verify */
1298 for (j = 0; j < len; j++) {
1299 if (buf [j] != (u8) (i + j)) {
1300 INFO (dev, "ctrl_out, byte %d is %d not %d\n",
1301 j, buf [j], (u8) i + j);
1302 retval = -EBADMSG;
1303 break;
1304 }
1305 }
1306 if (retval < 0) {
1307 what = "verify";
1308 break;
1309 }
1310
1311 len += vary;
1312
1313 /* [real world] the "zero bytes IN" case isn't really used.
1314 * hardware can easily trip up in this wierd case, since its
1315 * status stage is IN, not OUT like other ep0in transfers.
1316 */
1317 if (len > length)
1318 len = realworld ? 1 : 0;
1319 }
1320
1321 if (retval < 0)
1322 INFO (dev, "ctrl_out %s failed, code %d, count %d\n",
1323 what, retval, i);
1324
1325 kfree (buf);
1326 return retval;
1327 }
1328
1329 /*-------------------------------------------------------------------------*/
1330
1331 /* ISO tests ... mimics common usage
1332 * - buffer length is split into N packets (mostly maxpacket sized)
1333 * - multi-buffers according to sglen
1334 */
1335
1336 struct iso_context {
1337 unsigned count;
1338 unsigned pending;
1339 spinlock_t lock;
1340 struct completion done;
1341 int submit_error;
1342 unsigned long errors;
1343 unsigned long packet_count;
1344 struct usbtest_dev *dev;
1345 };
1346
1347 static void iso_callback (struct urb *urb)
1348 {
1349 struct iso_context *ctx = urb->context;
1350
1351 spin_lock(&ctx->lock);
1352 ctx->count--;
1353
1354 ctx->packet_count += urb->number_of_packets;
1355 if (urb->error_count > 0)
1356 ctx->errors += urb->error_count;
1357 else if (urb->status != 0)
1358 ctx->errors += urb->number_of_packets;
1359
1360 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1361 && !ctx->submit_error) {
1362 int status = usb_submit_urb (urb, GFP_ATOMIC);
1363 switch (status) {
1364 case 0:
1365 goto done;
1366 default:
1367 dev_dbg (&ctx->dev->intf->dev,
1368 "iso resubmit err %d\n",
1369 status);
1370 /* FALLTHROUGH */
1371 case -ENODEV: /* disconnected */
1372 case -ESHUTDOWN: /* endpoint disabled */
1373 ctx->submit_error = 1;
1374 break;
1375 }
1376 }
1377 simple_free_urb (urb);
1378
1379 ctx->pending--;
1380 if (ctx->pending == 0) {
1381 if (ctx->errors)
1382 dev_dbg (&ctx->dev->intf->dev,
1383 "iso test, %lu errors out of %lu\n",
1384 ctx->errors, ctx->packet_count);
1385 complete (&ctx->done);
1386 }
1387 done:
1388 spin_unlock(&ctx->lock);
1389 }
1390
1391 static struct urb *iso_alloc_urb (
1392 struct usb_device *udev,
1393 int pipe,
1394 struct usb_endpoint_descriptor *desc,
1395 long bytes
1396 )
1397 {
1398 struct urb *urb;
1399 unsigned i, maxp, packets;
1400
1401 if (bytes < 0 || !desc)
1402 return NULL;
1403 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1404 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1405 packets = (bytes + maxp - 1) / maxp;
1406
1407 urb = usb_alloc_urb (packets, GFP_KERNEL);
1408 if (!urb)
1409 return urb;
1410 urb->dev = udev;
1411 urb->pipe = pipe;
1412
1413 urb->number_of_packets = packets;
1414 urb->transfer_buffer_length = bytes;
1415 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
1416 &urb->transfer_dma);
1417 if (!urb->transfer_buffer) {
1418 usb_free_urb (urb);
1419 return NULL;
1420 }
1421 memset (urb->transfer_buffer, 0, bytes);
1422 for (i = 0; i < packets; i++) {
1423 /* here, only the last packet will be short */
1424 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1425 bytes -= urb->iso_frame_desc[i].length;
1426
1427 urb->iso_frame_desc[i].offset = maxp * i;
1428 }
1429
1430 urb->complete = iso_callback;
1431 // urb->context = SET BY CALLER
1432 urb->interval = 1 << (desc->bInterval - 1);
1433 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1434 return urb;
1435 }
1436
1437 static int
1438 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1439 int pipe, struct usb_endpoint_descriptor *desc)
1440 {
1441 struct iso_context context;
1442 struct usb_device *udev;
1443 unsigned i;
1444 unsigned long packets = 0;
1445 int status = 0;
1446 struct urb *urbs[10]; /* FIXME no limit */
1447
1448 if (param->sglen > 10)
1449 return -EDOM;
1450
1451 memset(&context, 0, sizeof context);
1452 context.count = param->iterations * param->sglen;
1453 context.dev = dev;
1454 init_completion (&context.done);
1455 spin_lock_init (&context.lock);
1456
1457 memset (urbs, 0, sizeof urbs);
1458 udev = testdev_to_usbdev (dev);
1459 dev_dbg (&dev->intf->dev,
1460 "... iso period %d %sframes, wMaxPacket %04x\n",
1461 1 << (desc->bInterval - 1),
1462 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1463 le16_to_cpu(desc->wMaxPacketSize));
1464
1465 for (i = 0; i < param->sglen; i++) {
1466 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1467 param->length);
1468 if (!urbs [i]) {
1469 status = -ENOMEM;
1470 goto fail;
1471 }
1472 packets += urbs[i]->number_of_packets;
1473 urbs [i]->context = &context;
1474 }
1475 packets *= param->iterations;
1476 dev_dbg (&dev->intf->dev,
1477 "... total %lu msec (%lu packets)\n",
1478 (packets * (1 << (desc->bInterval - 1)))
1479 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1480 packets);
1481
1482 spin_lock_irq (&context.lock);
1483 for (i = 0; i < param->sglen; i++) {
1484 ++context.pending;
1485 status = usb_submit_urb (urbs [i], GFP_ATOMIC);
1486 if (status < 0) {
1487 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1488 if (i == 0) {
1489 spin_unlock_irq (&context.lock);
1490 goto fail;
1491 }
1492
1493 simple_free_urb (urbs [i]);
1494 context.pending--;
1495 context.submit_error = 1;
1496 break;
1497 }
1498 }
1499 spin_unlock_irq (&context.lock);
1500
1501 wait_for_completion (&context.done);
1502
1503 /*
1504 * Isochronous transfers are expected to fail sometimes. As an
1505 * arbitrary limit, we will report an error if any submissions
1506 * fail or if the transfer failure rate is > 10%.
1507 */
1508 if (status != 0)
1509 ;
1510 else if (context.submit_error)
1511 status = -EACCES;
1512 else if (context.errors > context.packet_count / 10)
1513 status = -EIO;
1514 return status;
1515
1516 fail:
1517 for (i = 0; i < param->sglen; i++) {
1518 if (urbs [i])
1519 simple_free_urb (urbs [i]);
1520 }
1521 return status;
1522 }
1523
1524 /*-------------------------------------------------------------------------*/
1525
1526 /* We only have this one interface to user space, through usbfs.
1527 * User mode code can scan usbfs to find N different devices (maybe on
1528 * different busses) to use when testing, and allocate one thread per
1529 * test. So discovery is simplified, and we have no device naming issues.
1530 *
1531 * Don't use these only as stress/load tests. Use them along with with
1532 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1533 * video capture, and so on. Run different tests at different times, in
1534 * different sequences. Nothing here should interact with other devices,
1535 * except indirectly by consuming USB bandwidth and CPU resources for test
1536 * threads and request completion. But the only way to know that for sure
1537 * is to test when HC queues are in use by many devices.
1538 */
1539
1540 static int
1541 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1542 {
1543 struct usbtest_dev *dev = usb_get_intfdata (intf);
1544 struct usb_device *udev = testdev_to_usbdev (dev);
1545 struct usbtest_param *param = buf;
1546 int retval = -EOPNOTSUPP;
1547 struct urb *urb;
1548 struct scatterlist *sg;
1549 struct usb_sg_request req;
1550 struct timeval start;
1551 unsigned i;
1552
1553 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1554
1555 if (code != USBTEST_REQUEST)
1556 return -EOPNOTSUPP;
1557
1558 if (param->iterations <= 0 || param->length < 0
1559 || param->sglen < 0 || param->vary < 0)
1560 return -EINVAL;
1561
1562 if (down_interruptible (&dev->sem))
1563 return -ERESTARTSYS;
1564
1565 if (intf->dev.power.power_state.event != PM_EVENT_ON) {
1566 up (&dev->sem);
1567 return -EHOSTUNREACH;
1568 }
1569
1570 /* some devices, like ez-usb default devices, need a non-default
1571 * altsetting to have any active endpoints. some tests change
1572 * altsettings; force a default so most tests don't need to check.
1573 */
1574 if (dev->info->alt >= 0) {
1575 int res;
1576
1577 if (intf->altsetting->desc.bInterfaceNumber) {
1578 up (&dev->sem);
1579 return -ENODEV;
1580 }
1581 res = set_altsetting (dev, dev->info->alt);
1582 if (res) {
1583 dev_err (&intf->dev,
1584 "set altsetting to %d failed, %d\n",
1585 dev->info->alt, res);
1586 up (&dev->sem);
1587 return res;
1588 }
1589 }
1590
1591 /*
1592 * Just a bunch of test cases that every HCD is expected to handle.
1593 *
1594 * Some may need specific firmware, though it'd be good to have
1595 * one firmware image to handle all the test cases.
1596 *
1597 * FIXME add more tests! cancel requests, verify the data, control
1598 * queueing, concurrent read+write threads, and so on.
1599 */
1600 do_gettimeofday (&start);
1601 switch (param->test_num) {
1602
1603 case 0:
1604 dev_dbg (&intf->dev, "TEST 0: NOP\n");
1605 retval = 0;
1606 break;
1607
1608 /* Simple non-queued bulk I/O tests */
1609 case 1:
1610 if (dev->out_pipe == 0)
1611 break;
1612 dev_dbg (&intf->dev,
1613 "TEST 1: write %d bytes %u times\n",
1614 param->length, param->iterations);
1615 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1616 if (!urb) {
1617 retval = -ENOMEM;
1618 break;
1619 }
1620 // FIRMWARE: bulk sink (maybe accepts short writes)
1621 retval = simple_io (urb, param->iterations, 0, 0, "test1");
1622 simple_free_urb (urb);
1623 break;
1624 case 2:
1625 if (dev->in_pipe == 0)
1626 break;
1627 dev_dbg (&intf->dev,
1628 "TEST 2: read %d bytes %u times\n",
1629 param->length, param->iterations);
1630 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1631 if (!urb) {
1632 retval = -ENOMEM;
1633 break;
1634 }
1635 // FIRMWARE: bulk source (maybe generates short writes)
1636 retval = simple_io (urb, param->iterations, 0, 0, "test2");
1637 simple_free_urb (urb);
1638 break;
1639 case 3:
1640 if (dev->out_pipe == 0 || param->vary == 0)
1641 break;
1642 dev_dbg (&intf->dev,
1643 "TEST 3: write/%d 0..%d bytes %u times\n",
1644 param->vary, param->length, param->iterations);
1645 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1646 if (!urb) {
1647 retval = -ENOMEM;
1648 break;
1649 }
1650 // FIRMWARE: bulk sink (maybe accepts short writes)
1651 retval = simple_io (urb, param->iterations, param->vary,
1652 0, "test3");
1653 simple_free_urb (urb);
1654 break;
1655 case 4:
1656 if (dev->in_pipe == 0 || param->vary == 0)
1657 break;
1658 dev_dbg (&intf->dev,
1659 "TEST 4: read/%d 0..%d bytes %u times\n",
1660 param->vary, param->length, param->iterations);
1661 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1662 if (!urb) {
1663 retval = -ENOMEM;
1664 break;
1665 }
1666 // FIRMWARE: bulk source (maybe generates short writes)
1667 retval = simple_io (urb, param->iterations, param->vary,
1668 0, "test4");
1669 simple_free_urb (urb);
1670 break;
1671
1672 /* Queued bulk I/O tests */
1673 case 5:
1674 if (dev->out_pipe == 0 || param->sglen == 0)
1675 break;
1676 dev_dbg (&intf->dev,
1677 "TEST 5: write %d sglists %d entries of %d bytes\n",
1678 param->iterations,
1679 param->sglen, param->length);
1680 sg = alloc_sglist (param->sglen, param->length, 0);
1681 if (!sg) {
1682 retval = -ENOMEM;
1683 break;
1684 }
1685 // FIRMWARE: bulk sink (maybe accepts short writes)
1686 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1687 &req, sg, param->sglen);
1688 free_sglist (sg, param->sglen);
1689 break;
1690
1691 case 6:
1692 if (dev->in_pipe == 0 || param->sglen == 0)
1693 break;
1694 dev_dbg (&intf->dev,
1695 "TEST 6: read %d sglists %d entries of %d bytes\n",
1696 param->iterations,
1697 param->sglen, param->length);
1698 sg = alloc_sglist (param->sglen, param->length, 0);
1699 if (!sg) {
1700 retval = -ENOMEM;
1701 break;
1702 }
1703 // FIRMWARE: bulk source (maybe generates short writes)
1704 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1705 &req, sg, param->sglen);
1706 free_sglist (sg, param->sglen);
1707 break;
1708 case 7:
1709 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1710 break;
1711 dev_dbg (&intf->dev,
1712 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1713 param->vary, param->iterations,
1714 param->sglen, param->length);
1715 sg = alloc_sglist (param->sglen, param->length, param->vary);
1716 if (!sg) {
1717 retval = -ENOMEM;
1718 break;
1719 }
1720 // FIRMWARE: bulk sink (maybe accepts short writes)
1721 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1722 &req, sg, param->sglen);
1723 free_sglist (sg, param->sglen);
1724 break;
1725 case 8:
1726 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1727 break;
1728 dev_dbg (&intf->dev,
1729 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1730 param->vary, param->iterations,
1731 param->sglen, param->length);
1732 sg = alloc_sglist (param->sglen, param->length, param->vary);
1733 if (!sg) {
1734 retval = -ENOMEM;
1735 break;
1736 }
1737 // FIRMWARE: bulk source (maybe generates short writes)
1738 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1739 &req, sg, param->sglen);
1740 free_sglist (sg, param->sglen);
1741 break;
1742
1743 /* non-queued sanity tests for control (chapter 9 subset) */
1744 case 9:
1745 retval = 0;
1746 dev_dbg (&intf->dev,
1747 "TEST 9: ch9 (subset) control tests, %d times\n",
1748 param->iterations);
1749 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1750 retval = ch9_postconfig (dev);
1751 if (retval)
1752 dbg ("ch9 subset failed, iterations left %d", i);
1753 break;
1754
1755 /* queued control messaging */
1756 case 10:
1757 if (param->sglen == 0)
1758 break;
1759 retval = 0;
1760 dev_dbg (&intf->dev,
1761 "TEST 10: queue %d control calls, %d times\n",
1762 param->sglen,
1763 param->iterations);
1764 retval = test_ctrl_queue (dev, param);
1765 break;
1766
1767 /* simple non-queued unlinks (ring with one urb) */
1768 case 11:
1769 if (dev->in_pipe == 0 || !param->length)
1770 break;
1771 retval = 0;
1772 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n",
1773 param->iterations, param->length);
1774 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1775 retval = unlink_simple (dev, dev->in_pipe,
1776 param->length);
1777 if (retval)
1778 dev_dbg (&intf->dev, "unlink reads failed %d, "
1779 "iterations left %d\n", retval, i);
1780 break;
1781 case 12:
1782 if (dev->out_pipe == 0 || !param->length)
1783 break;
1784 retval = 0;
1785 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n",
1786 param->iterations, param->length);
1787 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1788 retval = unlink_simple (dev, dev->out_pipe,
1789 param->length);
1790 if (retval)
1791 dev_dbg (&intf->dev, "unlink writes failed %d, "
1792 "iterations left %d\n", retval, i);
1793 break;
1794
1795 /* ep halt tests */
1796 case 13:
1797 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1798 break;
1799 retval = 0;
1800 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n",
1801 param->iterations);
1802 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1803 retval = halt_simple (dev);
1804
1805 if (retval)
1806 DBG (dev, "halts failed, iterations left %d\n", i);
1807 break;
1808
1809 /* control write tests */
1810 case 14:
1811 if (!dev->info->ctrl_out)
1812 break;
1813 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1814 param->iterations,
1815 realworld ? 1 : 0, param->length,
1816 param->vary);
1817 retval = ctrl_out (dev, param->iterations,
1818 param->length, param->vary);
1819 break;
1820
1821 /* iso write tests */
1822 case 15:
1823 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1824 break;
1825 dev_dbg (&intf->dev,
1826 "TEST 15: write %d iso, %d entries of %d bytes\n",
1827 param->iterations,
1828 param->sglen, param->length);
1829 // FIRMWARE: iso sink
1830 retval = test_iso_queue (dev, param,
1831 dev->out_iso_pipe, dev->iso_out);
1832 break;
1833
1834 /* iso read tests */
1835 case 16:
1836 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1837 break;
1838 dev_dbg (&intf->dev,
1839 "TEST 16: read %d iso, %d entries of %d bytes\n",
1840 param->iterations,
1841 param->sglen, param->length);
1842 // FIRMWARE: iso source
1843 retval = test_iso_queue (dev, param,
1844 dev->in_iso_pipe, dev->iso_in);
1845 break;
1846
1847 // FIXME unlink from queue (ring with N urbs)
1848
1849 // FIXME scatterlist cancel (needs helper thread)
1850
1851 }
1852 do_gettimeofday (&param->duration);
1853 param->duration.tv_sec -= start.tv_sec;
1854 param->duration.tv_usec -= start.tv_usec;
1855 if (param->duration.tv_usec < 0) {
1856 param->duration.tv_usec += 1000 * 1000;
1857 param->duration.tv_sec -= 1;
1858 }
1859 up (&dev->sem);
1860 return retval;
1861 }
1862
1863 /*-------------------------------------------------------------------------*/
1864
1865 static unsigned force_interrupt = 0;
1866 module_param (force_interrupt, uint, 0);
1867 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1868
1869 #ifdef GENERIC
1870 static unsigned short vendor;
1871 module_param(vendor, ushort, 0);
1872 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1873
1874 static unsigned short product;
1875 module_param(product, ushort, 0);
1876 MODULE_PARM_DESC (product, "product code (from vendor)");
1877 #endif
1878
1879 static int
1880 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1881 {
1882 struct usb_device *udev;
1883 struct usbtest_dev *dev;
1884 struct usbtest_info *info;
1885 char *rtest, *wtest;
1886 char *irtest, *iwtest;
1887
1888 udev = interface_to_usbdev (intf);
1889
1890 #ifdef GENERIC
1891 /* specify devices by module parameters? */
1892 if (id->match_flags == 0) {
1893 /* vendor match required, product match optional */
1894 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1895 return -ENODEV;
1896 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1897 return -ENODEV;
1898 dbg ("matched module params, vend=0x%04x prod=0x%04x",
1899 le16_to_cpu(udev->descriptor.idVendor),
1900 le16_to_cpu(udev->descriptor.idProduct));
1901 }
1902 #endif
1903
1904 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1905 if (!dev)
1906 return -ENOMEM;
1907 info = (struct usbtest_info *) id->driver_info;
1908 dev->info = info;
1909 init_MUTEX (&dev->sem);
1910
1911 dev->intf = intf;
1912
1913 /* cacheline-aligned scratch for i/o */
1914 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) {
1915 kfree (dev);
1916 return -ENOMEM;
1917 }
1918
1919 /* NOTE this doesn't yet test the handful of difference that are
1920 * visible with high speed interrupts: bigger maxpacket (1K) and
1921 * "high bandwidth" modes (up to 3 packets/uframe).
1922 */
1923 rtest = wtest = "";
1924 irtest = iwtest = "";
1925 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1926 if (info->ep_in) {
1927 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1928 rtest = " intr-in";
1929 }
1930 if (info->ep_out) {
1931 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1932 wtest = " intr-out";
1933 }
1934 } else {
1935 if (info->autoconf) {
1936 int status;
1937
1938 status = get_endpoints (dev, intf);
1939 if (status < 0) {
1940 dbg ("couldn't get endpoints, %d\n", status);
1941 return status;
1942 }
1943 /* may find bulk or ISO pipes */
1944 } else {
1945 if (info->ep_in)
1946 dev->in_pipe = usb_rcvbulkpipe (udev,
1947 info->ep_in);
1948 if (info->ep_out)
1949 dev->out_pipe = usb_sndbulkpipe (udev,
1950 info->ep_out);
1951 }
1952 if (dev->in_pipe)
1953 rtest = " bulk-in";
1954 if (dev->out_pipe)
1955 wtest = " bulk-out";
1956 if (dev->in_iso_pipe)
1957 irtest = " iso-in";
1958 if (dev->out_iso_pipe)
1959 iwtest = " iso-out";
1960 }
1961
1962 usb_set_intfdata (intf, dev);
1963 dev_info (&intf->dev, "%s\n", info->name);
1964 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1965 ({ char *tmp;
1966 switch (udev->speed) {
1967 case USB_SPEED_LOW: tmp = "low"; break;
1968 case USB_SPEED_FULL: tmp = "full"; break;
1969 case USB_SPEED_HIGH: tmp = "high"; break;
1970 default: tmp = "unknown"; break;
1971 }; tmp; }),
1972 info->ctrl_out ? " in/out" : "",
1973 rtest, wtest,
1974 irtest, iwtest,
1975 info->alt >= 0 ? " (+alt)" : "");
1976 return 0;
1977 }
1978
1979 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
1980 {
1981 return 0;
1982 }
1983
1984 static int usbtest_resume (struct usb_interface *intf)
1985 {
1986 return 0;
1987 }
1988
1989
1990 static void usbtest_disconnect (struct usb_interface *intf)
1991 {
1992 struct usbtest_dev *dev = usb_get_intfdata (intf);
1993
1994 down (&dev->sem);
1995
1996 usb_set_intfdata (intf, NULL);
1997 dev_dbg (&intf->dev, "disconnect\n");
1998 kfree (dev);
1999 }
2000
2001 /* Basic testing only needs a device that can source or sink bulk traffic.
2002 * Any device can test control transfers (default with GENERIC binding).
2003 *
2004 * Several entries work with the default EP0 implementation that's built
2005 * into EZ-USB chips. There's a default vendor ID which can be overridden
2006 * by (very) small config EEPROMS, but otherwise all these devices act
2007 * identically until firmware is loaded: only EP0 works. It turns out
2008 * to be easy to make other endpoints work, without modifying that EP0
2009 * behavior. For now, we expect that kind of firmware.
2010 */
2011
2012 /* an21xx or fx versions of ez-usb */
2013 static struct usbtest_info ez1_info = {
2014 .name = "EZ-USB device",
2015 .ep_in = 2,
2016 .ep_out = 2,
2017 .alt = 1,
2018 };
2019
2020 /* fx2 version of ez-usb */
2021 static struct usbtest_info ez2_info = {
2022 .name = "FX2 device",
2023 .ep_in = 6,
2024 .ep_out = 2,
2025 .alt = 1,
2026 };
2027
2028 /* ezusb family device with dedicated usb test firmware,
2029 */
2030 static struct usbtest_info fw_info = {
2031 .name = "usb test device",
2032 .ep_in = 2,
2033 .ep_out = 2,
2034 .alt = 1,
2035 .autoconf = 1, // iso and ctrl_out need autoconf
2036 .ctrl_out = 1,
2037 .iso = 1, // iso_ep's are #8 in/out
2038 };
2039
2040 /* peripheral running Linux and 'zero.c' test firmware, or
2041 * its user-mode cousin. different versions of this use
2042 * different hardware with the same vendor/product codes.
2043 * host side MUST rely on the endpoint descriptors.
2044 */
2045 static struct usbtest_info gz_info = {
2046 .name = "Linux gadget zero",
2047 .autoconf = 1,
2048 .ctrl_out = 1,
2049 .alt = 0,
2050 };
2051
2052 static struct usbtest_info um_info = {
2053 .name = "Linux user mode test driver",
2054 .autoconf = 1,
2055 .alt = -1,
2056 };
2057
2058 static struct usbtest_info um2_info = {
2059 .name = "Linux user mode ISO test driver",
2060 .autoconf = 1,
2061 .iso = 1,
2062 .alt = -1,
2063 };
2064
2065 #ifdef IBOT2
2066 /* this is a nice source of high speed bulk data;
2067 * uses an FX2, with firmware provided in the device
2068 */
2069 static struct usbtest_info ibot2_info = {
2070 .name = "iBOT2 webcam",
2071 .ep_in = 2,
2072 .alt = -1,
2073 };
2074 #endif
2075
2076 #ifdef GENERIC
2077 /* we can use any device to test control traffic */
2078 static struct usbtest_info generic_info = {
2079 .name = "Generic USB device",
2080 .alt = -1,
2081 };
2082 #endif
2083
2084 // FIXME remove this
2085 static struct usbtest_info hact_info = {
2086 .name = "FX2/hact",
2087 //.ep_in = 6,
2088 .ep_out = 2,
2089 .alt = -1,
2090 };
2091
2092
2093 static struct usb_device_id id_table [] = {
2094
2095 { USB_DEVICE (0x0547, 0x1002),
2096 .driver_info = (unsigned long) &hact_info,
2097 },
2098
2099 /*-------------------------------------------------------------*/
2100
2101 /* EZ-USB devices which download firmware to replace (or in our
2102 * case augment) the default device implementation.
2103 */
2104
2105 /* generic EZ-USB FX controller */
2106 { USB_DEVICE (0x0547, 0x2235),
2107 .driver_info = (unsigned long) &ez1_info,
2108 },
2109
2110 /* CY3671 development board with EZ-USB FX */
2111 { USB_DEVICE (0x0547, 0x0080),
2112 .driver_info = (unsigned long) &ez1_info,
2113 },
2114
2115 /* generic EZ-USB FX2 controller (or development board) */
2116 { USB_DEVICE (0x04b4, 0x8613),
2117 .driver_info = (unsigned long) &ez2_info,
2118 },
2119
2120 /* re-enumerated usb test device firmware */
2121 { USB_DEVICE (0xfff0, 0xfff0),
2122 .driver_info = (unsigned long) &fw_info,
2123 },
2124
2125 /* "Gadget Zero" firmware runs under Linux */
2126 { USB_DEVICE (0x0525, 0xa4a0),
2127 .driver_info = (unsigned long) &gz_info,
2128 },
2129
2130 /* so does a user-mode variant */
2131 { USB_DEVICE (0x0525, 0xa4a4),
2132 .driver_info = (unsigned long) &um_info,
2133 },
2134
2135 /* ... and a user-mode variant that talks iso */
2136 { USB_DEVICE (0x0525, 0xa4a3),
2137 .driver_info = (unsigned long) &um2_info,
2138 },
2139
2140 #ifdef KEYSPAN_19Qi
2141 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2142 // this does not coexist with the real Keyspan 19qi driver!
2143 { USB_DEVICE (0x06cd, 0x010b),
2144 .driver_info = (unsigned long) &ez1_info,
2145 },
2146 #endif
2147
2148 /*-------------------------------------------------------------*/
2149
2150 #ifdef IBOT2
2151 /* iBOT2 makes a nice source of high speed bulk-in data */
2152 // this does not coexist with a real iBOT2 driver!
2153 { USB_DEVICE (0x0b62, 0x0059),
2154 .driver_info = (unsigned long) &ibot2_info,
2155 },
2156 #endif
2157
2158 /*-------------------------------------------------------------*/
2159
2160 #ifdef GENERIC
2161 /* module params can specify devices to use for control tests */
2162 { .driver_info = (unsigned long) &generic_info, },
2163 #endif
2164
2165 /*-------------------------------------------------------------*/
2166
2167 { }
2168 };
2169 MODULE_DEVICE_TABLE (usb, id_table);
2170
2171 static struct usb_driver usbtest_driver = {
2172 .name = "usbtest",
2173 .id_table = id_table,
2174 .probe = usbtest_probe,
2175 .ioctl = usbtest_ioctl,
2176 .disconnect = usbtest_disconnect,
2177 .suspend = usbtest_suspend,
2178 .resume = usbtest_resume,
2179 };
2180
2181 /*-------------------------------------------------------------------------*/
2182
2183 static int __init usbtest_init (void)
2184 {
2185 #ifdef GENERIC
2186 if (vendor)
2187 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product);
2188 #endif
2189 return usb_register (&usbtest_driver);
2190 }
2191 module_init (usbtest_init);
2192
2193 static void __exit usbtest_exit (void)
2194 {
2195 usb_deregister (&usbtest_driver);
2196 }
2197 module_exit (usbtest_exit);
2198
2199 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2200 MODULE_LICENSE ("GPL");
2201
Support for the Chinese Samsung S3C2440 based development boards