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[PATCH] Missing transfer_flags setting in usbtest
[linux-2.6/openmoko-kernel/knife-kernel.git] / drivers / usb / misc / usbtest.c
blob90a96257d6ce920423ceeac5fd6a57c5f6968d2a
1 #include <linux/config.h>
2 #if !defined (DEBUG) && defined (CONFIG_USB_DEBUG)
3 # define DEBUG
4 #endif
5 #include <linux/kernel.h>
6 #include <linux/errno.h>
7 #include <linux/init.h>
8 #include <linux/slab.h>
9 #include <linux/mm.h>
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <asm/scatterlist.h>
13
14 #include <linux/usb.h>
15
16
17 /*-------------------------------------------------------------------------*/
18
19 // FIXME make these public somewhere; usbdevfs.h?
20 //
21 struct usbtest_param {
22 // inputs
23 unsigned test_num; /* 0..(TEST_CASES-1) */
24 unsigned iterations;
25 unsigned length;
26 unsigned vary;
27 unsigned sglen;
28
29 // outputs
30 struct timeval duration;
31 };
32 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
33
34 /*-------------------------------------------------------------------------*/
35
36 #define GENERIC /* let probe() bind using module params */
37
38 /* Some devices that can be used for testing will have "real" drivers.
39 * Entries for those need to be enabled here by hand, after disabling
40 * that "real" driver.
41 */
42 //#define IBOT2 /* grab iBOT2 webcams */
43 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
44
45 /*-------------------------------------------------------------------------*/
46
47 struct usbtest_info {
48 const char *name;
49 u8 ep_in; /* bulk/intr source */
50 u8 ep_out; /* bulk/intr sink */
51 unsigned autoconf : 1;
52 unsigned ctrl_out : 1;
53 unsigned iso : 1; /* try iso in/out */
54 int alt;
55 };
56
57 /* this is accessed only through usbfs ioctl calls.
58 * one ioctl to issue a test ... one lock per device.
59 * tests create other threads if they need them.
60 * urbs and buffers are allocated dynamically,
61 * and data generated deterministically.
62 */
63 struct usbtest_dev {
64 struct usb_interface *intf;
65 struct usbtest_info *info;
66 int in_pipe;
67 int out_pipe;
68 int in_iso_pipe;
69 int out_iso_pipe;
70 struct usb_endpoint_descriptor *iso_in, *iso_out;
71 struct semaphore sem;
72
73 #define TBUF_SIZE 256
74 u8 *buf;
75 };
76
77 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
78 {
79 return interface_to_usbdev (test->intf);
80 }
81
82 /* set up all urbs so they can be used with either bulk or interrupt */
83 #define INTERRUPT_RATE 1 /* msec/transfer */
84
85 #define xprintk(tdev,level,fmt,args...) \
86 dev_printk(level , &(tdev)->intf->dev , fmt , ## args)
87
88 #ifdef DEBUG
89 #define DBG(dev,fmt,args...) \
90 xprintk(dev , KERN_DEBUG , fmt , ## args)
91 #else
92 #define DBG(dev,fmt,args...) \
93 do { } while (0)
94 #endif /* DEBUG */
95
96 #ifdef VERBOSE
97 #define VDBG DBG
98 #else
99 #define VDBG(dev,fmt,args...) \
100 do { } while (0)
101 #endif /* VERBOSE */
102
103 #define ERROR(dev,fmt,args...) \
104 xprintk(dev , KERN_ERR , fmt , ## args)
105 #define WARN(dev,fmt,args...) \
106 xprintk(dev , KERN_WARNING , fmt , ## args)
107 #define INFO(dev,fmt,args...) \
108 xprintk(dev , KERN_INFO , fmt , ## args)
109
110 /*-------------------------------------------------------------------------*/
111
112 static int
113 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
114 {
115 int tmp;
116 struct usb_host_interface *alt;
117 struct usb_host_endpoint *in, *out;
118 struct usb_host_endpoint *iso_in, *iso_out;
119 struct usb_device *udev;
120
121 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
122 unsigned ep;
123
124 in = out = NULL;
125 iso_in = iso_out = NULL;
126 alt = intf->altsetting + tmp;
127
128 /* take the first altsetting with in-bulk + out-bulk;
129 * ignore other endpoints and altsetttings.
130 */
131 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
132 struct usb_host_endpoint *e;
133
134 e = alt->endpoint + ep;
135 switch (e->desc.bmAttributes) {
136 case USB_ENDPOINT_XFER_BULK:
137 break;
138 case USB_ENDPOINT_XFER_ISOC:
139 if (dev->info->iso)
140 goto try_iso;
141 // FALLTHROUGH
142 default:
143 continue;
144 }
145 if (e->desc.bEndpointAddress & USB_DIR_IN) {
146 if (!in)
147 in = e;
148 } else {
149 if (!out)
150 out = e;
151 }
152 continue;
153 try_iso:
154 if (e->desc.bEndpointAddress & USB_DIR_IN) {
155 if (!iso_in)
156 iso_in = e;
157 } else {
158 if (!iso_out)
159 iso_out = e;
160 }
161 }
162 if ((in && out) || (iso_in && iso_out))
163 goto found;
164 }
165 return -EINVAL;
166
167 found:
168 udev = testdev_to_usbdev (dev);
169 if (alt->desc.bAlternateSetting != 0) {
170 tmp = usb_set_interface (udev,
171 alt->desc.bInterfaceNumber,
172 alt->desc.bAlternateSetting);
173 if (tmp < 0)
174 return tmp;
175 }
176
177 if (in) {
178 dev->in_pipe = usb_rcvbulkpipe (udev,
179 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
180 dev->out_pipe = usb_sndbulkpipe (udev,
181 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
182 }
183 if (iso_in) {
184 dev->iso_in = &iso_in->desc;
185 dev->in_iso_pipe = usb_rcvisocpipe (udev,
186 iso_in->desc.bEndpointAddress
187 & USB_ENDPOINT_NUMBER_MASK);
188 dev->iso_out = &iso_out->desc;
189 dev->out_iso_pipe = usb_sndisocpipe (udev,
190 iso_out->desc.bEndpointAddress
191 & USB_ENDPOINT_NUMBER_MASK);
192 }
193 return 0;
194 }
195
196 /*-------------------------------------------------------------------------*/
197
198 /* Support for testing basic non-queued I/O streams.
199 *
200 * These just package urbs as requests that can be easily canceled.
201 * Each urb's data buffer is dynamically allocated; callers can fill
202 * them with non-zero test data (or test for it) when appropriate.
203 */
204
205 static void simple_callback (struct urb *urb, struct pt_regs *regs)
206 {
207 complete ((struct completion *) urb->context);
208 }
209
210 static struct urb *simple_alloc_urb (
211 struct usb_device *udev,
212 int pipe,
213 unsigned long bytes
214 )
215 {
216 struct urb *urb;
217
218 if (bytes < 0)
219 return NULL;
220 urb = usb_alloc_urb (0, SLAB_KERNEL);
221 if (!urb)
222 return urb;
223 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
224 urb->interval = (udev->speed == USB_SPEED_HIGH)
225 ? (INTERRUPT_RATE << 3)
226 : INTERRUPT_RATE;
227 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
228 if (usb_pipein (pipe))
229 urb->transfer_flags |= URB_SHORT_NOT_OK;
230 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL,
231 &urb->transfer_dma);
232 if (!urb->transfer_buffer) {
233 usb_free_urb (urb);
234 urb = NULL;
235 } else
236 memset (urb->transfer_buffer, 0, bytes);
237 return urb;
238 }
239
240 static unsigned pattern = 0;
241 module_param (pattern, uint, S_IRUGO);
242 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)");
243
244 static inline void simple_fill_buf (struct urb *urb)
245 {
246 unsigned i;
247 u8 *buf = urb->transfer_buffer;
248 unsigned len = urb->transfer_buffer_length;
249
250 switch (pattern) {
251 default:
252 // FALLTHROUGH
253 case 0:
254 memset (buf, 0, len);
255 break;
256 case 1: /* mod63 */
257 for (i = 0; i < len; i++)
258 *buf++ = (u8) (i % 63);
259 break;
260 }
261 }
262
263 static inline int simple_check_buf (struct urb *urb)
264 {
265 unsigned i;
266 u8 expected;
267 u8 *buf = urb->transfer_buffer;
268 unsigned len = urb->actual_length;
269
270 for (i = 0; i < len; i++, buf++) {
271 switch (pattern) {
272 /* all-zeroes has no synchronization issues */
273 case 0:
274 expected = 0;
275 break;
276 /* mod63 stays in sync with short-terminated transfers,
277 * or otherwise when host and gadget agree on how large
278 * each usb transfer request should be. resync is done
279 * with set_interface or set_config.
280 */
281 case 1: /* mod63 */
282 expected = i % 63;
283 break;
284 /* always fail unsupported patterns */
285 default:
286 expected = !*buf;
287 break;
288 }
289 if (*buf == expected)
290 continue;
291 dbg ("buf[%d] = %d (not %d)", i, *buf, expected);
292 return -EINVAL;
293 }
294 return 0;
295 }
296
297 static void simple_free_urb (struct urb *urb)
298 {
299 usb_buffer_free (urb->dev, urb->transfer_buffer_length,
300 urb->transfer_buffer, urb->transfer_dma);
301 usb_free_urb (urb);
302 }
303
304 static int simple_io (
305 struct urb *urb,
306 int iterations,
307 int vary,
308 int expected,
309 const char *label
310 )
311 {
312 struct usb_device *udev = urb->dev;
313 int max = urb->transfer_buffer_length;
314 struct completion completion;
315 int retval = 0;
316
317 urb->context = &completion;
318 while (retval == 0 && iterations-- > 0) {
319 init_completion (&completion);
320 if (usb_pipeout (urb->pipe))
321 simple_fill_buf (urb);
322 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0)
323 break;
324
325 /* NOTE: no timeouts; can't be broken out of by interrupt */
326 wait_for_completion (&completion);
327 retval = urb->status;
328 urb->dev = udev;
329 if (retval == 0 && usb_pipein (urb->pipe))
330 retval = simple_check_buf (urb);
331
332 if (vary) {
333 int len = urb->transfer_buffer_length;
334
335 len += vary;
336 len %= max;
337 if (len == 0)
338 len = (vary < max) ? vary : max;
339 urb->transfer_buffer_length = len;
340 }
341
342 /* FIXME if endpoint halted, clear halt (and log) */
343 }
344 urb->transfer_buffer_length = max;
345
346 if (expected != retval)
347 dev_dbg (&udev->dev,
348 "%s failed, iterations left %d, status %d (not %d)\n",
349 label, iterations, retval, expected);
350 return retval;
351 }
352
353
354 /*-------------------------------------------------------------------------*/
355
356 /* We use scatterlist primitives to test queued I/O.
357 * Yes, this also tests the scatterlist primitives.
358 */
359
360 static void free_sglist (struct scatterlist *sg, int nents)
361 {
362 unsigned i;
363
364 if (!sg)
365 return;
366 for (i = 0; i < nents; i++) {
367 if (!sg [i].page)
368 continue;
369 kfree (page_address (sg [i].page) + sg [i].offset);
370 }
371 kfree (sg);
372 }
373
374 static struct scatterlist *
375 alloc_sglist (int nents, int max, int vary)
376 {
377 struct scatterlist *sg;
378 unsigned i;
379 unsigned size = max;
380
381 sg = kmalloc (nents * sizeof *sg, SLAB_KERNEL);
382 if (!sg)
383 return NULL;
384 memset (sg, 0, nents * sizeof *sg);
385
386 for (i = 0; i < nents; i++) {
387 char *buf;
388
389 buf = kmalloc (size, SLAB_KERNEL);
390 if (!buf) {
391 free_sglist (sg, i);
392 return NULL;
393 }
394 memset (buf, 0, size);
395
396 /* kmalloc pages are always physically contiguous! */
397 sg [i].page = virt_to_page (buf);
398 sg [i].offset = offset_in_page (buf);
399 sg [i].length = size;
400
401 if (vary) {
402 size += vary;
403 size %= max;
404 if (size == 0)
405 size = (vary < max) ? vary : max;
406 }
407 }
408
409 return sg;
410 }
411
412 static int perform_sglist (
413 struct usb_device *udev,
414 unsigned iterations,
415 int pipe,
416 struct usb_sg_request *req,
417 struct scatterlist *sg,
418 int nents
419 )
420 {
421 int retval = 0;
422
423 while (retval == 0 && iterations-- > 0) {
424 retval = usb_sg_init (req, udev, pipe,
425 (udev->speed == USB_SPEED_HIGH)
426 ? (INTERRUPT_RATE << 3)
427 : INTERRUPT_RATE,
428 sg, nents, 0, SLAB_KERNEL);
429
430 if (retval)
431 break;
432 usb_sg_wait (req);
433 retval = req->status;
434
435 /* FIXME if endpoint halted, clear halt (and log) */
436 }
437
438 // FIXME for unlink or fault handling tests, don't report
439 // failure if retval is as we expected ...
440
441 if (retval)
442 dbg ("perform_sglist failed, iterations left %d, status %d",
443 iterations, retval);
444 return retval;
445 }
446
447
448 /*-------------------------------------------------------------------------*/
449
450 /* unqueued control message testing
451 *
452 * there's a nice set of device functional requirements in chapter 9 of the
453 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
454 * special test firmware.
455 *
456 * we know the device is configured (or suspended) by the time it's visible
457 * through usbfs. we can't change that, so we won't test enumeration (which
458 * worked 'well enough' to get here, this time), power management (ditto),
459 * or remote wakeup (which needs human interaction).
460 */
461
462 static unsigned realworld = 1;
463 module_param (realworld, uint, 0);
464 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
465
466 static int get_altsetting (struct usbtest_dev *dev)
467 {
468 struct usb_interface *iface = dev->intf;
469 struct usb_device *udev = interface_to_usbdev (iface);
470 int retval;
471
472 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
473 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
474 0, iface->altsetting [0].desc.bInterfaceNumber,
475 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
476 switch (retval) {
477 case 1:
478 return dev->buf [0];
479 case 0:
480 retval = -ERANGE;
481 // FALLTHROUGH
482 default:
483 return retval;
484 }
485 }
486
487 static int set_altsetting (struct usbtest_dev *dev, int alternate)
488 {
489 struct usb_interface *iface = dev->intf;
490 struct usb_device *udev;
491
492 if (alternate < 0 || alternate >= 256)
493 return -EINVAL;
494
495 udev = interface_to_usbdev (iface);
496 return usb_set_interface (udev,
497 iface->altsetting [0].desc.bInterfaceNumber,
498 alternate);
499 }
500
501 static int is_good_config (char *buf, int len)
502 {
503 struct usb_config_descriptor *config;
504
505 if (len < sizeof *config)
506 return 0;
507 config = (struct usb_config_descriptor *) buf;
508
509 switch (config->bDescriptorType) {
510 case USB_DT_CONFIG:
511 case USB_DT_OTHER_SPEED_CONFIG:
512 if (config->bLength != 9) {
513 dbg ("bogus config descriptor length");
514 return 0;
515 }
516 /* this bit 'must be 1' but often isn't */
517 if (!realworld && !(config->bmAttributes & 0x80)) {
518 dbg ("high bit of config attributes not set");
519 return 0;
520 }
521 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
522 dbg ("reserved config bits set");
523 return 0;
524 }
525 break;
526 default:
527 return 0;
528 }
529
530 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
531 return 1;
532 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
533 return 1;
534 dbg ("bogus config descriptor read size");
535 return 0;
536 }
537
538 /* sanity test for standard requests working with usb_control_mesg() and some
539 * of the utility functions which use it.
540 *
541 * this doesn't test how endpoint halts behave or data toggles get set, since
542 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
543 * halt or toggle). toggle testing is impractical without support from hcds.
544 *
545 * this avoids failing devices linux would normally work with, by not testing
546 * config/altsetting operations for devices that only support their defaults.
547 * such devices rarely support those needless operations.
548 *
549 * NOTE that since this is a sanity test, it's not examining boundary cases
550 * to see if usbcore, hcd, and device all behave right. such testing would
551 * involve varied read sizes and other operation sequences.
552 */
553 static int ch9_postconfig (struct usbtest_dev *dev)
554 {
555 struct usb_interface *iface = dev->intf;
556 struct usb_device *udev = interface_to_usbdev (iface);
557 int i, alt, retval;
558
559 /* [9.2.3] if there's more than one altsetting, we need to be able to
560 * set and get each one. mostly trusts the descriptors from usbcore.
561 */
562 for (i = 0; i < iface->num_altsetting; i++) {
563
564 /* 9.2.3 constrains the range here */
565 alt = iface->altsetting [i].desc.bAlternateSetting;
566 if (alt < 0 || alt >= iface->num_altsetting) {
567 dev_dbg (&iface->dev,
568 "invalid alt [%d].bAltSetting = %d\n",
569 i, alt);
570 }
571
572 /* [real world] get/set unimplemented if there's only one */
573 if (realworld && iface->num_altsetting == 1)
574 continue;
575
576 /* [9.4.10] set_interface */
577 retval = set_altsetting (dev, alt);
578 if (retval) {
579 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n",
580 alt, retval);
581 return retval;
582 }
583
584 /* [9.4.4] get_interface always works */
585 retval = get_altsetting (dev);
586 if (retval != alt) {
587 dev_dbg (&iface->dev, "get alt should be %d, was %d\n",
588 alt, retval);
589 return (retval < 0) ? retval : -EDOM;
590 }
591
592 }
593
594 /* [real world] get_config unimplemented if there's only one */
595 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
596 int expected = udev->actconfig->desc.bConfigurationValue;
597
598 /* [9.4.2] get_configuration always works
599 * ... although some cheap devices (like one TI Hub I've got)
600 * won't return config descriptors except before set_config.
601 */
602 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
603 USB_REQ_GET_CONFIGURATION,
604 USB_DIR_IN | USB_RECIP_DEVICE,
605 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
606 if (retval != 1 || dev->buf [0] != expected) {
607 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n",
608 retval, dev->buf[0], expected);
609 return (retval < 0) ? retval : -EDOM;
610 }
611 }
612
613 /* there's always [9.4.3] a device descriptor [9.6.1] */
614 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
615 dev->buf, sizeof udev->descriptor);
616 if (retval != sizeof udev->descriptor) {
617 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval);
618 return (retval < 0) ? retval : -EDOM;
619 }
620
621 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
622 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
623 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
624 dev->buf, TBUF_SIZE);
625 if (!is_good_config (dev->buf, retval)) {
626 dev_dbg (&iface->dev,
627 "config [%d] descriptor --> %d\n",
628 i, retval);
629 return (retval < 0) ? retval : -EDOM;
630 }
631
632 // FIXME cross-checking udev->config[i] to make sure usbcore
633 // parsed it right (etc) would be good testing paranoia
634 }
635
636 /* and sometimes [9.2.6.6] speed dependent descriptors */
637 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
638 struct usb_qualifier_descriptor *d = NULL;
639
640 /* device qualifier [9.6.2] */
641 retval = usb_get_descriptor (udev,
642 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
643 sizeof (struct usb_qualifier_descriptor));
644 if (retval == -EPIPE) {
645 if (udev->speed == USB_SPEED_HIGH) {
646 dev_dbg (&iface->dev,
647 "hs dev qualifier --> %d\n",
648 retval);
649 return (retval < 0) ? retval : -EDOM;
650 }
651 /* usb2.0 but not high-speed capable; fine */
652 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
653 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval);
654 return (retval < 0) ? retval : -EDOM;
655 } else
656 d = (struct usb_qualifier_descriptor *) dev->buf;
657
658 /* might not have [9.6.2] any other-speed configs [9.6.4] */
659 if (d) {
660 unsigned max = d->bNumConfigurations;
661 for (i = 0; i < max; i++) {
662 retval = usb_get_descriptor (udev,
663 USB_DT_OTHER_SPEED_CONFIG, i,
664 dev->buf, TBUF_SIZE);
665 if (!is_good_config (dev->buf, retval)) {
666 dev_dbg (&iface->dev,
667 "other speed config --> %d\n",
668 retval);
669 return (retval < 0) ? retval : -EDOM;
670 }
671 }
672 }
673 }
674 // FIXME fetch strings from at least the device descriptor
675
676 /* [9.4.5] get_status always works */
677 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
678 if (retval != 2) {
679 dev_dbg (&iface->dev, "get dev status --> %d\n", retval);
680 return (retval < 0) ? retval : -EDOM;
681 }
682
683 // FIXME configuration.bmAttributes says if we could try to set/clear
684 // the device's remote wakeup feature ... if we can, test that here
685
686 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
687 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
688 if (retval != 2) {
689 dev_dbg (&iface->dev, "get interface status --> %d\n", retval);
690 return (retval < 0) ? retval : -EDOM;
691 }
692 // FIXME get status for each endpoint in the interface
693
694 return 0;
695 }
696
697 /*-------------------------------------------------------------------------*/
698
699 /* use ch9 requests to test whether:
700 * (a) queues work for control, keeping N subtests queued and
701 * active (auto-resubmit) for M loops through the queue.
702 * (b) protocol stalls (control-only) will autorecover.
703 * it's not like bulk/intr; no halt clearing.
704 * (c) short control reads are reported and handled.
705 * (d) queues are always processed in-order
706 */
707
708 struct ctrl_ctx {
709 spinlock_t lock;
710 struct usbtest_dev *dev;
711 struct completion complete;
712 unsigned count;
713 unsigned pending;
714 int status;
715 struct urb **urb;
716 struct usbtest_param *param;
717 int last;
718 };
719
720 #define NUM_SUBCASES 15 /* how many test subcases here? */
721
722 struct subcase {
723 struct usb_ctrlrequest setup;
724 int number;
725 int expected;
726 };
727
728 static void ctrl_complete (struct urb *urb, struct pt_regs *regs)
729 {
730 struct ctrl_ctx *ctx = urb->context;
731 struct usb_ctrlrequest *reqp;
732 struct subcase *subcase;
733 int status = urb->status;
734
735 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
736 subcase = container_of (reqp, struct subcase, setup);
737
738 spin_lock (&ctx->lock);
739 ctx->count--;
740 ctx->pending--;
741
742 /* queue must transfer and complete in fifo order, unless
743 * usb_unlink_urb() is used to unlink something not at the
744 * physical queue head (not tested).
745 */
746 if (subcase->number > 0) {
747 if ((subcase->number - ctx->last) != 1) {
748 dbg ("subcase %d completed out of order, last %d",
749 subcase->number, ctx->last);
750 status = -EDOM;
751 ctx->last = subcase->number;
752 goto error;
753 }
754 }
755 ctx->last = subcase->number;
756
757 /* succeed or fault in only one way? */
758 if (status == subcase->expected)
759 status = 0;
760
761 /* async unlink for cleanup? */
762 else if (status != -ECONNRESET) {
763
764 /* some faults are allowed, not required */
765 if (subcase->expected > 0 && (
766 ((urb->status == -subcase->expected /* happened */
767 || urb->status == 0)))) /* didn't */
768 status = 0;
769 /* sometimes more than one fault is allowed */
770 else if (subcase->number == 12 && status == -EPIPE)
771 status = 0;
772 else
773 dbg ("subtest %d error, status %d",
774 subcase->number, status);
775 }
776
777 /* unexpected status codes mean errors; ideally, in hardware */
778 if (status) {
779 error:
780 if (ctx->status == 0) {
781 int i;
782
783 ctx->status = status;
784 info ("control queue %02x.%02x, err %d, %d left",
785 reqp->bRequestType, reqp->bRequest,
786 status, ctx->count);
787
788 /* FIXME this "unlink everything" exit route should
789 * be a separate test case.
790 */
791
792 /* unlink whatever's still pending */
793 for (i = 1; i < ctx->param->sglen; i++) {
794 struct urb *u = ctx->urb [
795 (i + subcase->number) % ctx->param->sglen];
796
797 if (u == urb || !u->dev)
798 continue;
799 status = usb_unlink_urb (u);
800 switch (status) {
801 case -EINPROGRESS:
802 case -EBUSY:
803 case -EIDRM:
804 continue;
805 default:
806 dbg ("urb unlink --> %d", status);
807 }
808 }
809 status = ctx->status;
810 }
811 }
812
813 /* resubmit if we need to, else mark this as done */
814 if ((status == 0) && (ctx->pending < ctx->count)) {
815 if ((status = usb_submit_urb (urb, SLAB_ATOMIC)) != 0) {
816 dbg ("can't resubmit ctrl %02x.%02x, err %d",
817 reqp->bRequestType, reqp->bRequest, status);
818 urb->dev = NULL;
819 } else
820 ctx->pending++;
821 } else
822 urb->dev = NULL;
823
824 /* signal completion when nothing's queued */
825 if (ctx->pending == 0)
826 complete (&ctx->complete);
827 spin_unlock (&ctx->lock);
828 }
829
830 static int
831 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
832 {
833 struct usb_device *udev = testdev_to_usbdev (dev);
834 struct urb **urb;
835 struct ctrl_ctx context;
836 int i;
837
838 spin_lock_init (&context.lock);
839 context.dev = dev;
840 init_completion (&context.complete);
841 context.count = param->sglen * param->iterations;
842 context.pending = 0;
843 context.status = -ENOMEM;
844 context.param = param;
845 context.last = -1;
846
847 /* allocate and init the urbs we'll queue.
848 * as with bulk/intr sglists, sglen is the queue depth; it also
849 * controls which subtests run (more tests than sglen) or rerun.
850 */
851 urb = kmalloc (param->sglen * sizeof (struct urb *), SLAB_KERNEL);
852 if (!urb)
853 return -ENOMEM;
854 memset (urb, 0, param->sglen * sizeof (struct urb *));
855 for (i = 0; i < param->sglen; i++) {
856 int pipe = usb_rcvctrlpipe (udev, 0);
857 unsigned len;
858 struct urb *u;
859 struct usb_ctrlrequest req;
860 struct subcase *reqp;
861 int expected = 0;
862
863 /* requests here are mostly expected to succeed on any
864 * device, but some are chosen to trigger protocol stalls
865 * or short reads.
866 */
867 memset (&req, 0, sizeof req);
868 req.bRequest = USB_REQ_GET_DESCRIPTOR;
869 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
870
871 switch (i % NUM_SUBCASES) {
872 case 0: // get device descriptor
873 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
874 len = sizeof (struct usb_device_descriptor);
875 break;
876 case 1: // get first config descriptor (only)
877 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
878 len = sizeof (struct usb_config_descriptor);
879 break;
880 case 2: // get altsetting (OFTEN STALLS)
881 req.bRequest = USB_REQ_GET_INTERFACE;
882 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
883 // index = 0 means first interface
884 len = 1;
885 expected = EPIPE;
886 break;
887 case 3: // get interface status
888 req.bRequest = USB_REQ_GET_STATUS;
889 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
890 // interface 0
891 len = 2;
892 break;
893 case 4: // get device status
894 req.bRequest = USB_REQ_GET_STATUS;
895 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
896 len = 2;
897 break;
898 case 5: // get device qualifier (MAY STALL)
899 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
900 len = sizeof (struct usb_qualifier_descriptor);
901 if (udev->speed != USB_SPEED_HIGH)
902 expected = EPIPE;
903 break;
904 case 6: // get first config descriptor, plus interface
905 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
906 len = sizeof (struct usb_config_descriptor);
907 len += sizeof (struct usb_interface_descriptor);
908 break;
909 case 7: // get interface descriptor (ALWAYS STALLS)
910 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
911 // interface == 0
912 len = sizeof (struct usb_interface_descriptor);
913 expected = EPIPE;
914 break;
915 // NOTE: two consecutive stalls in the queue here.
916 // that tests fault recovery a bit more aggressively.
917 case 8: // clear endpoint halt (USUALLY STALLS)
918 req.bRequest = USB_REQ_CLEAR_FEATURE;
919 req.bRequestType = USB_RECIP_ENDPOINT;
920 // wValue 0 == ep halt
921 // wIndex 0 == ep0 (shouldn't halt!)
922 len = 0;
923 pipe = usb_sndctrlpipe (udev, 0);
924 expected = EPIPE;
925 break;
926 case 9: // get endpoint status
927 req.bRequest = USB_REQ_GET_STATUS;
928 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
929 // endpoint 0
930 len = 2;
931 break;
932 case 10: // trigger short read (EREMOTEIO)
933 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
934 len = 1024;
935 expected = -EREMOTEIO;
936 break;
937 // NOTE: two consecutive _different_ faults in the queue.
938 case 11: // get endpoint descriptor (ALWAYS STALLS)
939 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
940 // endpoint == 0
941 len = sizeof (struct usb_interface_descriptor);
942 expected = EPIPE;
943 break;
944 // NOTE: sometimes even a third fault in the queue!
945 case 12: // get string 0 descriptor (MAY STALL)
946 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
947 // string == 0, for language IDs
948 len = sizeof (struct usb_interface_descriptor);
949 // may succeed when > 4 languages
950 expected = EREMOTEIO; // or EPIPE, if no strings
951 break;
952 case 13: // short read, resembling case 10
953 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
954 // last data packet "should" be DATA1, not DATA0
955 len = 1024 - udev->descriptor.bMaxPacketSize0;
956 expected = -EREMOTEIO;
957 break;
958 case 14: // short read; try to fill the last packet
959 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
960 // device descriptor size == 18 bytes
961 len = udev->descriptor.bMaxPacketSize0;
962 switch (len) {
963 case 8: len = 24; break;
964 case 16: len = 32; break;
965 }
966 expected = -EREMOTEIO;
967 break;
968 default:
969 err ("bogus number of ctrl queue testcases!");
970 context.status = -EINVAL;
971 goto cleanup;
972 }
973 req.wLength = cpu_to_le16 (len);
974 urb [i] = u = simple_alloc_urb (udev, pipe, len);
975 if (!u)
976 goto cleanup;
977
978 reqp = usb_buffer_alloc (udev, sizeof *reqp, SLAB_KERNEL,
979 &u->setup_dma);
980 if (!reqp)
981 goto cleanup;
982 reqp->setup = req;
983 reqp->number = i % NUM_SUBCASES;
984 reqp->expected = expected;
985 u->setup_packet = (char *) &reqp->setup;
986 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
987
988 u->context = &context;
989 u->complete = ctrl_complete;
990 }
991
992 /* queue the urbs */
993 context.urb = urb;
994 spin_lock_irq (&context.lock);
995 for (i = 0; i < param->sglen; i++) {
996 context.status = usb_submit_urb (urb [i], SLAB_ATOMIC);
997 if (context.status != 0) {
998 dbg ("can't submit urb[%d], status %d",
999 i, context.status);
1000 context.count = context.pending;
1001 break;
1002 }
1003 context.pending++;
1004 }
1005 spin_unlock_irq (&context.lock);
1006
1007 /* FIXME set timer and time out; provide a disconnect hook */
1008
1009 /* wait for the last one to complete */
1010 if (context.pending > 0)
1011 wait_for_completion (&context.complete);
1012
1013 cleanup:
1014 for (i = 0; i < param->sglen; i++) {
1015 if (!urb [i])
1016 continue;
1017 urb [i]->dev = udev;
1018 if (urb [i]->setup_packet)
1019 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1020 urb [i]->setup_packet,
1021 urb [i]->setup_dma);
1022 simple_free_urb (urb [i]);
1023 }
1024 kfree (urb);
1025 return context.status;
1026 }
1027 #undef NUM_SUBCASES
1028
1029
1030 /*-------------------------------------------------------------------------*/
1031
1032 static void unlink1_callback (struct urb *urb, struct pt_regs *regs)
1033 {
1034 int status = urb->status;
1035
1036 // we "know" -EPIPE (stall) never happens
1037 if (!status)
1038 status = usb_submit_urb (urb, SLAB_ATOMIC);
1039 if (status) {
1040 urb->status = status;
1041 complete ((struct completion *) urb->context);
1042 }
1043 }
1044
1045 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1046 {
1047 struct urb *urb;
1048 struct completion completion;
1049 int retval = 0;
1050
1051 init_completion (&completion);
1052 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1053 if (!urb)
1054 return -ENOMEM;
1055 urb->context = &completion;
1056 urb->complete = unlink1_callback;
1057
1058 /* keep the endpoint busy. there are lots of hc/hcd-internal
1059 * states, and testing should get to all of them over time.
1060 *
1061 * FIXME want additional tests for when endpoint is STALLing
1062 * due to errors, or is just NAKing requests.
1063 */
1064 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) {
1065 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval);
1066 return retval;
1067 }
1068
1069 /* unlinking that should always work. variable delay tests more
1070 * hcd states and code paths, even with little other system load.
1071 */
1072 msleep (jiffies % (2 * INTERRUPT_RATE));
1073 if (async) {
1074 retry:
1075 retval = usb_unlink_urb (urb);
1076 if (retval == -EBUSY || retval == -EIDRM) {
1077 /* we can't unlink urbs while they're completing.
1078 * or if they've completed, and we haven't resubmitted.
1079 * "normal" drivers would prevent resubmission, but
1080 * since we're testing unlink paths, we can't.
1081 */
1082 dev_dbg (&dev->intf->dev, "unlink retry\n");
1083 goto retry;
1084 }
1085 } else
1086 usb_kill_urb (urb);
1087 if (!(retval == 0 || retval == -EINPROGRESS)) {
1088 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval);
1089 return retval;
1090 }
1091
1092 wait_for_completion (&completion);
1093 retval = urb->status;
1094 simple_free_urb (urb);
1095
1096 if (async)
1097 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1098 else
1099 return (retval == -ENOENT || retval == -EPERM) ?
1100 0 : retval - 2000;
1101 }
1102
1103 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1104 {
1105 int retval = 0;
1106
1107 /* test sync and async paths */
1108 retval = unlink1 (dev, pipe, len, 1);
1109 if (!retval)
1110 retval = unlink1 (dev, pipe, len, 0);
1111 return retval;
1112 }
1113
1114 /*-------------------------------------------------------------------------*/
1115
1116 static int verify_not_halted (int ep, struct urb *urb)
1117 {
1118 int retval;
1119 u16 status;
1120
1121 /* shouldn't look or act halted */
1122 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1123 if (retval < 0) {
1124 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval);
1125 return retval;
1126 }
1127 if (status != 0) {
1128 dbg ("ep %02x bogus status: %04x != 0", ep, status);
1129 return -EINVAL;
1130 }
1131 retval = simple_io (urb, 1, 0, 0, __FUNCTION__);
1132 if (retval != 0)
1133 return -EINVAL;
1134 return 0;
1135 }
1136
1137 static int verify_halted (int ep, struct urb *urb)
1138 {
1139 int retval;
1140 u16 status;
1141
1142 /* should look and act halted */
1143 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1144 if (retval < 0) {
1145 dbg ("ep %02x couldn't get halt status, %d", ep, retval);
1146 return retval;
1147 }
1148 if (status != 1) {
1149 dbg ("ep %02x bogus status: %04x != 1", ep, status);
1150 return -EINVAL;
1151 }
1152 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__);
1153 if (retval != -EPIPE)
1154 return -EINVAL;
1155 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted");
1156 if (retval != -EPIPE)
1157 return -EINVAL;
1158 return 0;
1159 }
1160
1161 static int test_halt (int ep, struct urb *urb)
1162 {
1163 int retval;
1164
1165 /* shouldn't look or act halted now */
1166 retval = verify_not_halted (ep, urb);
1167 if (retval < 0)
1168 return retval;
1169
1170 /* set halt (protocol test only), verify it worked */
1171 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1172 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1173 USB_ENDPOINT_HALT, ep,
1174 NULL, 0, USB_CTRL_SET_TIMEOUT);
1175 if (retval < 0) {
1176 dbg ("ep %02x couldn't set halt, %d", ep, retval);
1177 return retval;
1178 }
1179 retval = verify_halted (ep, urb);
1180 if (retval < 0)
1181 return retval;
1182
1183 /* clear halt (tests API + protocol), verify it worked */
1184 retval = usb_clear_halt (urb->dev, urb->pipe);
1185 if (retval < 0) {
1186 dbg ("ep %02x couldn't clear halt, %d", ep, retval);
1187 return retval;
1188 }
1189 retval = verify_not_halted (ep, urb);
1190 if (retval < 0)
1191 return retval;
1192
1193 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1194
1195 return 0;
1196 }
1197
1198 static int halt_simple (struct usbtest_dev *dev)
1199 {
1200 int ep;
1201 int retval = 0;
1202 struct urb *urb;
1203
1204 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1205 if (urb == NULL)
1206 return -ENOMEM;
1207
1208 if (dev->in_pipe) {
1209 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1210 urb->pipe = dev->in_pipe;
1211 retval = test_halt (ep, urb);
1212 if (retval < 0)
1213 goto done;
1214 }
1215
1216 if (dev->out_pipe) {
1217 ep = usb_pipeendpoint (dev->out_pipe);
1218 urb->pipe = dev->out_pipe;
1219 retval = test_halt (ep, urb);
1220 }
1221 done:
1222 simple_free_urb (urb);
1223 return retval;
1224 }
1225
1226 /*-------------------------------------------------------------------------*/
1227
1228 /* Control OUT tests use the vendor control requests from Intel's
1229 * USB 2.0 compliance test device: write a buffer, read it back.
1230 *
1231 * Intel's spec only _requires_ that it work for one packet, which
1232 * is pretty weak. Some HCDs place limits here; most devices will
1233 * need to be able to handle more than one OUT data packet. We'll
1234 * try whatever we're told to try.
1235 */
1236 static int ctrl_out (struct usbtest_dev *dev,
1237 unsigned count, unsigned length, unsigned vary)
1238 {
1239 unsigned i, j, len, retval;
1240 u8 *buf;
1241 char *what = "?";
1242 struct usb_device *udev;
1243
1244 if (length < 1 || length > 0xffff || vary >= length)
1245 return -EINVAL;
1246
1247 buf = kmalloc(length, SLAB_KERNEL);
1248 if (!buf)
1249 return -ENOMEM;
1250
1251 udev = testdev_to_usbdev (dev);
1252 len = length;
1253 retval = 0;
1254
1255 /* NOTE: hardware might well act differently if we pushed it
1256 * with lots back-to-back queued requests.
1257 */
1258 for (i = 0; i < count; i++) {
1259 /* write patterned data */
1260 for (j = 0; j < len; j++)
1261 buf [j] = i + j;
1262 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1263 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1264 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1265 if (retval != len) {
1266 what = "write";
1267 if (retval >= 0) {
1268 INFO(dev, "ctrl_out, wlen %d (expected %d)\n",
1269 retval, len);
1270 retval = -EBADMSG;
1271 }
1272 break;
1273 }
1274
1275 /* read it back -- assuming nothing intervened!! */
1276 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1277 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1278 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1279 if (retval != len) {
1280 what = "read";
1281 if (retval >= 0) {
1282 INFO(dev, "ctrl_out, rlen %d (expected %d)\n",
1283 retval, len);
1284 retval = -EBADMSG;
1285 }
1286 break;
1287 }
1288
1289 /* fail if we can't verify */
1290 for (j = 0; j < len; j++) {
1291 if (buf [j] != (u8) (i + j)) {
1292 INFO (dev, "ctrl_out, byte %d is %d not %d\n",
1293 j, buf [j], (u8) i + j);
1294 retval = -EBADMSG;
1295 break;
1296 }
1297 }
1298 if (retval < 0) {
1299 what = "verify";
1300 break;
1301 }
1302
1303 len += vary;
1304
1305 /* [real world] the "zero bytes IN" case isn't really used.
1306 * hardware can easily trip up in this wierd case, since its
1307 * status stage is IN, not OUT like other ep0in transfers.
1308 */
1309 if (len > length)
1310 len = realworld ? 1 : 0;
1311 }
1312
1313 if (retval < 0)
1314 INFO (dev, "ctrl_out %s failed, code %d, count %d\n",
1315 what, retval, i);
1316
1317 kfree (buf);
1318 return retval;
1319 }
1320
1321 /*-------------------------------------------------------------------------*/
1322
1323 /* ISO tests ... mimics common usage
1324 * - buffer length is split into N packets (mostly maxpacket sized)
1325 * - multi-buffers according to sglen
1326 */
1327
1328 struct iso_context {
1329 unsigned count;
1330 unsigned pending;
1331 spinlock_t lock;
1332 struct completion done;
1333 unsigned long errors;
1334 struct usbtest_dev *dev;
1335 };
1336
1337 static void iso_callback (struct urb *urb, struct pt_regs *regs)
1338 {
1339 struct iso_context *ctx = urb->context;
1340
1341 spin_lock(&ctx->lock);
1342 ctx->count--;
1343
1344 if (urb->error_count > 0)
1345 ctx->errors += urb->error_count;
1346
1347 if (urb->status == 0 && ctx->count > (ctx->pending - 1)) {
1348 int status = usb_submit_urb (urb, GFP_ATOMIC);
1349 switch (status) {
1350 case 0:
1351 goto done;
1352 default:
1353 dev_dbg (&ctx->dev->intf->dev,
1354 "iso resubmit err %d\n",
1355 status);
1356 /* FALLTHROUGH */
1357 case -ENODEV: /* disconnected */
1358 break;
1359 }
1360 }
1361 simple_free_urb (urb);
1362
1363 ctx->pending--;
1364 if (ctx->pending == 0) {
1365 if (ctx->errors)
1366 dev_dbg (&ctx->dev->intf->dev,
1367 "iso test, %lu errors\n",
1368 ctx->errors);
1369 complete (&ctx->done);
1370 }
1371 done:
1372 spin_unlock(&ctx->lock);
1373 }
1374
1375 static struct urb *iso_alloc_urb (
1376 struct usb_device *udev,
1377 int pipe,
1378 struct usb_endpoint_descriptor *desc,
1379 long bytes
1380 )
1381 {
1382 struct urb *urb;
1383 unsigned i, maxp, packets;
1384
1385 if (bytes < 0 || !desc)
1386 return NULL;
1387 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1388 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1389 packets = (bytes + maxp - 1) / maxp;
1390
1391 urb = usb_alloc_urb (packets, SLAB_KERNEL);
1392 if (!urb)
1393 return urb;
1394 urb->dev = udev;
1395 urb->pipe = pipe;
1396
1397 urb->number_of_packets = packets;
1398 urb->transfer_buffer_length = bytes;
1399 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL,
1400 &urb->transfer_dma);
1401 if (!urb->transfer_buffer) {
1402 usb_free_urb (urb);
1403 return NULL;
1404 }
1405 memset (urb->transfer_buffer, 0, bytes);
1406 for (i = 0; i < packets; i++) {
1407 /* here, only the last packet will be short */
1408 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1409 bytes -= urb->iso_frame_desc[i].length;
1410
1411 urb->iso_frame_desc[i].offset = maxp * i;
1412 }
1413
1414 urb->complete = iso_callback;
1415 // urb->context = SET BY CALLER
1416 urb->interval = 1 << (desc->bInterval - 1);
1417 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1418 return urb;
1419 }
1420
1421 static int
1422 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1423 int pipe, struct usb_endpoint_descriptor *desc)
1424 {
1425 struct iso_context context;
1426 struct usb_device *udev;
1427 unsigned i;
1428 unsigned long packets = 0;
1429 int status;
1430 struct urb *urbs[10]; /* FIXME no limit */
1431
1432 if (param->sglen > 10)
1433 return -EDOM;
1434
1435 context.count = param->iterations * param->sglen;
1436 context.pending = param->sglen;
1437 context.errors = 0;
1438 context.dev = dev;
1439 init_completion (&context.done);
1440 spin_lock_init (&context.lock);
1441
1442 memset (urbs, 0, sizeof urbs);
1443 udev = testdev_to_usbdev (dev);
1444 dev_dbg (&dev->intf->dev,
1445 "... iso period %d %sframes, wMaxPacket %04x\n",
1446 1 << (desc->bInterval - 1),
1447 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1448 le16_to_cpu(desc->wMaxPacketSize));
1449
1450 for (i = 0; i < param->sglen; i++) {
1451 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1452 param->length);
1453 if (!urbs [i]) {
1454 status = -ENOMEM;
1455 goto fail;
1456 }
1457 packets += urbs[i]->number_of_packets;
1458 urbs [i]->context = &context;
1459 }
1460 packets *= param->iterations;
1461 dev_dbg (&dev->intf->dev,
1462 "... total %lu msec (%lu packets)\n",
1463 (packets * (1 << (desc->bInterval - 1)))
1464 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1465 packets);
1466
1467 spin_lock_irq (&context.lock);
1468 for (i = 0; i < param->sglen; i++) {
1469 status = usb_submit_urb (urbs [i], SLAB_ATOMIC);
1470 if (status < 0) {
1471 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1472 if (i == 0) {
1473 spin_unlock_irq (&context.lock);
1474 goto fail;
1475 }
1476
1477 simple_free_urb (urbs [i]);
1478 context.pending--;
1479 }
1480 }
1481 spin_unlock_irq (&context.lock);
1482
1483 wait_for_completion (&context.done);
1484 return 0;
1485
1486 fail:
1487 for (i = 0; i < param->sglen; i++) {
1488 if (urbs [i])
1489 simple_free_urb (urbs [i]);
1490 }
1491 return status;
1492 }
1493
1494 /*-------------------------------------------------------------------------*/
1495
1496 /* We only have this one interface to user space, through usbfs.
1497 * User mode code can scan usbfs to find N different devices (maybe on
1498 * different busses) to use when testing, and allocate one thread per
1499 * test. So discovery is simplified, and we have no device naming issues.
1500 *
1501 * Don't use these only as stress/load tests. Use them along with with
1502 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1503 * video capture, and so on. Run different tests at different times, in
1504 * different sequences. Nothing here should interact with other devices,
1505 * except indirectly by consuming USB bandwidth and CPU resources for test
1506 * threads and request completion. But the only way to know that for sure
1507 * is to test when HC queues are in use by many devices.
1508 */
1509
1510 static int
1511 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1512 {
1513 struct usbtest_dev *dev = usb_get_intfdata (intf);
1514 struct usb_device *udev = testdev_to_usbdev (dev);
1515 struct usbtest_param *param = buf;
1516 int retval = -EOPNOTSUPP;
1517 struct urb *urb;
1518 struct scatterlist *sg;
1519 struct usb_sg_request req;
1520 struct timeval start;
1521 unsigned i;
1522
1523 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1524
1525 if (code != USBTEST_REQUEST)
1526 return -EOPNOTSUPP;
1527
1528 if (param->iterations <= 0 || param->length < 0
1529 || param->sglen < 0 || param->vary < 0)
1530 return -EINVAL;
1531
1532 if (down_interruptible (&dev->sem))
1533 return -ERESTARTSYS;
1534
1535 if (intf->dev.power.power_state.event != PM_EVENT_ON) {
1536 up (&dev->sem);
1537 return -EHOSTUNREACH;
1538 }
1539
1540 /* some devices, like ez-usb default devices, need a non-default
1541 * altsetting to have any active endpoints. some tests change
1542 * altsettings; force a default so most tests don't need to check.
1543 */
1544 if (dev->info->alt >= 0) {
1545 int res;
1546
1547 if (intf->altsetting->desc.bInterfaceNumber) {
1548 up (&dev->sem);
1549 return -ENODEV;
1550 }
1551 res = set_altsetting (dev, dev->info->alt);
1552 if (res) {
1553 dev_err (&intf->dev,
1554 "set altsetting to %d failed, %d\n",
1555 dev->info->alt, res);
1556 up (&dev->sem);
1557 return res;
1558 }
1559 }
1560
1561 /*
1562 * Just a bunch of test cases that every HCD is expected to handle.
1563 *
1564 * Some may need specific firmware, though it'd be good to have
1565 * one firmware image to handle all the test cases.
1566 *
1567 * FIXME add more tests! cancel requests, verify the data, control
1568 * queueing, concurrent read+write threads, and so on.
1569 */
1570 do_gettimeofday (&start);
1571 switch (param->test_num) {
1572
1573 case 0:
1574 dev_dbg (&intf->dev, "TEST 0: NOP\n");
1575 retval = 0;
1576 break;
1577
1578 /* Simple non-queued bulk I/O tests */
1579 case 1:
1580 if (dev->out_pipe == 0)
1581 break;
1582 dev_dbg (&intf->dev,
1583 "TEST 1: write %d bytes %u times\n",
1584 param->length, param->iterations);
1585 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1586 if (!urb) {
1587 retval = -ENOMEM;
1588 break;
1589 }
1590 // FIRMWARE: bulk sink (maybe accepts short writes)
1591 retval = simple_io (urb, param->iterations, 0, 0, "test1");
1592 simple_free_urb (urb);
1593 break;
1594 case 2:
1595 if (dev->in_pipe == 0)
1596 break;
1597 dev_dbg (&intf->dev,
1598 "TEST 2: read %d bytes %u times\n",
1599 param->length, param->iterations);
1600 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1601 if (!urb) {
1602 retval = -ENOMEM;
1603 break;
1604 }
1605 // FIRMWARE: bulk source (maybe generates short writes)
1606 retval = simple_io (urb, param->iterations, 0, 0, "test2");
1607 simple_free_urb (urb);
1608 break;
1609 case 3:
1610 if (dev->out_pipe == 0 || param->vary == 0)
1611 break;
1612 dev_dbg (&intf->dev,
1613 "TEST 3: write/%d 0..%d bytes %u times\n",
1614 param->vary, 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, param->vary,
1622 0, "test3");
1623 simple_free_urb (urb);
1624 break;
1625 case 4:
1626 if (dev->in_pipe == 0 || param->vary == 0)
1627 break;
1628 dev_dbg (&intf->dev,
1629 "TEST 4: read/%d 0..%d bytes %u times\n",
1630 param->vary, 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, param->vary,
1638 0, "test4");
1639 simple_free_urb (urb);
1640 break;
1641
1642 /* Queued bulk I/O tests */
1643 case 5:
1644 if (dev->out_pipe == 0 || param->sglen == 0)
1645 break;
1646 dev_dbg (&intf->dev,
1647 "TEST 5: write %d sglists %d entries of %d bytes\n",
1648 param->iterations,
1649 param->sglen, param->length);
1650 sg = alloc_sglist (param->sglen, param->length, 0);
1651 if (!sg) {
1652 retval = -ENOMEM;
1653 break;
1654 }
1655 // FIRMWARE: bulk sink (maybe accepts short writes)
1656 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1657 &req, sg, param->sglen);
1658 free_sglist (sg, param->sglen);
1659 break;
1660
1661 case 6:
1662 if (dev->in_pipe == 0 || param->sglen == 0)
1663 break;
1664 dev_dbg (&intf->dev,
1665 "TEST 6: read %d sglists %d entries of %d bytes\n",
1666 param->iterations,
1667 param->sglen, param->length);
1668 sg = alloc_sglist (param->sglen, param->length, 0);
1669 if (!sg) {
1670 retval = -ENOMEM;
1671 break;
1672 }
1673 // FIRMWARE: bulk source (maybe generates short writes)
1674 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1675 &req, sg, param->sglen);
1676 free_sglist (sg, param->sglen);
1677 break;
1678 case 7:
1679 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1680 break;
1681 dev_dbg (&intf->dev,
1682 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1683 param->vary, param->iterations,
1684 param->sglen, param->length);
1685 sg = alloc_sglist (param->sglen, param->length, param->vary);
1686 if (!sg) {
1687 retval = -ENOMEM;
1688 break;
1689 }
1690 // FIRMWARE: bulk sink (maybe accepts short writes)
1691 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1692 &req, sg, param->sglen);
1693 free_sglist (sg, param->sglen);
1694 break;
1695 case 8:
1696 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1697 break;
1698 dev_dbg (&intf->dev,
1699 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1700 param->vary, param->iterations,
1701 param->sglen, param->length);
1702 sg = alloc_sglist (param->sglen, param->length, param->vary);
1703 if (!sg) {
1704 retval = -ENOMEM;
1705 break;
1706 }
1707 // FIRMWARE: bulk source (maybe generates short writes)
1708 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1709 &req, sg, param->sglen);
1710 free_sglist (sg, param->sglen);
1711 break;
1712
1713 /* non-queued sanity tests for control (chapter 9 subset) */
1714 case 9:
1715 retval = 0;
1716 dev_dbg (&intf->dev,
1717 "TEST 9: ch9 (subset) control tests, %d times\n",
1718 param->iterations);
1719 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1720 retval = ch9_postconfig (dev);
1721 if (retval)
1722 dbg ("ch9 subset failed, iterations left %d", i);
1723 break;
1724
1725 /* queued control messaging */
1726 case 10:
1727 if (param->sglen == 0)
1728 break;
1729 retval = 0;
1730 dev_dbg (&intf->dev,
1731 "TEST 10: queue %d control calls, %d times\n",
1732 param->sglen,
1733 param->iterations);
1734 retval = test_ctrl_queue (dev, param);
1735 break;
1736
1737 /* simple non-queued unlinks (ring with one urb) */
1738 case 11:
1739 if (dev->in_pipe == 0 || !param->length)
1740 break;
1741 retval = 0;
1742 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n",
1743 param->iterations, param->length);
1744 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1745 retval = unlink_simple (dev, dev->in_pipe,
1746 param->length);
1747 if (retval)
1748 dev_dbg (&intf->dev, "unlink reads failed %d, "
1749 "iterations left %d\n", retval, i);
1750 break;
1751 case 12:
1752 if (dev->out_pipe == 0 || !param->length)
1753 break;
1754 retval = 0;
1755 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n",
1756 param->iterations, param->length);
1757 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1758 retval = unlink_simple (dev, dev->out_pipe,
1759 param->length);
1760 if (retval)
1761 dev_dbg (&intf->dev, "unlink writes failed %d, "
1762 "iterations left %d\n", retval, i);
1763 break;
1764
1765 /* ep halt tests */
1766 case 13:
1767 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1768 break;
1769 retval = 0;
1770 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n",
1771 param->iterations);
1772 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1773 retval = halt_simple (dev);
1774
1775 if (retval)
1776 DBG (dev, "halts failed, iterations left %d\n", i);
1777 break;
1778
1779 /* control write tests */
1780 case 14:
1781 if (!dev->info->ctrl_out)
1782 break;
1783 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1784 param->iterations,
1785 realworld ? 1 : 0, param->length,
1786 param->vary);
1787 retval = ctrl_out (dev, param->iterations,
1788 param->length, param->vary);
1789 break;
1790
1791 /* iso write tests */
1792 case 15:
1793 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1794 break;
1795 dev_dbg (&intf->dev,
1796 "TEST 15: write %d iso, %d entries of %d bytes\n",
1797 param->iterations,
1798 param->sglen, param->length);
1799 // FIRMWARE: iso sink
1800 retval = test_iso_queue (dev, param,
1801 dev->out_iso_pipe, dev->iso_out);
1802 break;
1803
1804 /* iso read tests */
1805 case 16:
1806 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1807 break;
1808 dev_dbg (&intf->dev,
1809 "TEST 16: read %d iso, %d entries of %d bytes\n",
1810 param->iterations,
1811 param->sglen, param->length);
1812 // FIRMWARE: iso source
1813 retval = test_iso_queue (dev, param,
1814 dev->in_iso_pipe, dev->iso_in);
1815 break;
1816
1817 // FIXME unlink from queue (ring with N urbs)
1818
1819 // FIXME scatterlist cancel (needs helper thread)
1820
1821 }
1822 do_gettimeofday (&param->duration);
1823 param->duration.tv_sec -= start.tv_sec;
1824 param->duration.tv_usec -= start.tv_usec;
1825 if (param->duration.tv_usec < 0) {
1826 param->duration.tv_usec += 1000 * 1000;
1827 param->duration.tv_sec -= 1;
1828 }
1829 up (&dev->sem);
1830 return retval;
1831 }
1832
1833 /*-------------------------------------------------------------------------*/
1834
1835 static unsigned force_interrupt = 0;
1836 module_param (force_interrupt, uint, 0);
1837 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1838
1839 #ifdef GENERIC
1840 static unsigned short vendor;
1841 module_param(vendor, ushort, 0);
1842 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1843
1844 static unsigned short product;
1845 module_param(product, ushort, 0);
1846 MODULE_PARM_DESC (product, "product code (from vendor)");
1847 #endif
1848
1849 static int
1850 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1851 {
1852 struct usb_device *udev;
1853 struct usbtest_dev *dev;
1854 struct usbtest_info *info;
1855 char *rtest, *wtest;
1856 char *irtest, *iwtest;
1857
1858 udev = interface_to_usbdev (intf);
1859
1860 #ifdef GENERIC
1861 /* specify devices by module parameters? */
1862 if (id->match_flags == 0) {
1863 /* vendor match required, product match optional */
1864 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1865 return -ENODEV;
1866 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1867 return -ENODEV;
1868 dbg ("matched module params, vend=0x%04x prod=0x%04x",
1869 le16_to_cpu(udev->descriptor.idVendor),
1870 le16_to_cpu(udev->descriptor.idProduct));
1871 }
1872 #endif
1873
1874 dev = kmalloc (sizeof *dev, SLAB_KERNEL);
1875 if (!dev)
1876 return -ENOMEM;
1877 memset (dev, 0, sizeof *dev);
1878 info = (struct usbtest_info *) id->driver_info;
1879 dev->info = info;
1880 init_MUTEX (&dev->sem);
1881
1882 dev->intf = intf;
1883
1884 /* cacheline-aligned scratch for i/o */
1885 if ((dev->buf = kmalloc (TBUF_SIZE, SLAB_KERNEL)) == NULL) {
1886 kfree (dev);
1887 return -ENOMEM;
1888 }
1889
1890 /* NOTE this doesn't yet test the handful of difference that are
1891 * visible with high speed interrupts: bigger maxpacket (1K) and
1892 * "high bandwidth" modes (up to 3 packets/uframe).
1893 */
1894 rtest = wtest = "";
1895 irtest = iwtest = "";
1896 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1897 if (info->ep_in) {
1898 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1899 rtest = " intr-in";
1900 }
1901 if (info->ep_out) {
1902 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1903 wtest = " intr-out";
1904 }
1905 } else {
1906 if (info->autoconf) {
1907 int status;
1908
1909 status = get_endpoints (dev, intf);
1910 if (status < 0) {
1911 dbg ("couldn't get endpoints, %d\n", status);
1912 return status;
1913 }
1914 /* may find bulk or ISO pipes */
1915 } else {
1916 if (info->ep_in)
1917 dev->in_pipe = usb_rcvbulkpipe (udev,
1918 info->ep_in);
1919 if (info->ep_out)
1920 dev->out_pipe = usb_sndbulkpipe (udev,
1921 info->ep_out);
1922 }
1923 if (dev->in_pipe)
1924 rtest = " bulk-in";
1925 if (dev->out_pipe)
1926 wtest = " bulk-out";
1927 if (dev->in_iso_pipe)
1928 irtest = " iso-in";
1929 if (dev->out_iso_pipe)
1930 iwtest = " iso-out";
1931 }
1932
1933 usb_set_intfdata (intf, dev);
1934 dev_info (&intf->dev, "%s\n", info->name);
1935 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1936 ({ char *tmp;
1937 switch (udev->speed) {
1938 case USB_SPEED_LOW: tmp = "low"; break;
1939 case USB_SPEED_FULL: tmp = "full"; break;
1940 case USB_SPEED_HIGH: tmp = "high"; break;
1941 default: tmp = "unknown"; break;
1942 }; tmp; }),
1943 info->ctrl_out ? " in/out" : "",
1944 rtest, wtest,
1945 irtest, iwtest,
1946 info->alt >= 0 ? " (+alt)" : "");
1947 return 0;
1948 }
1949
1950 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
1951 {
1952 return 0;
1953 }
1954
1955 static int usbtest_resume (struct usb_interface *intf)
1956 {
1957 return 0;
1958 }
1959
1960
1961 static void usbtest_disconnect (struct usb_interface *intf)
1962 {
1963 struct usbtest_dev *dev = usb_get_intfdata (intf);
1964
1965 down (&dev->sem);
1966
1967 usb_set_intfdata (intf, NULL);
1968 dev_dbg (&intf->dev, "disconnect\n");
1969 kfree (dev);
1970 }
1971
1972 /* Basic testing only needs a device that can source or sink bulk traffic.
1973 * Any device can test control transfers (default with GENERIC binding).
1974 *
1975 * Several entries work with the default EP0 implementation that's built
1976 * into EZ-USB chips. There's a default vendor ID which can be overridden
1977 * by (very) small config EEPROMS, but otherwise all these devices act
1978 * identically until firmware is loaded: only EP0 works. It turns out
1979 * to be easy to make other endpoints work, without modifying that EP0
1980 * behavior. For now, we expect that kind of firmware.
1981 */
1982
1983 /* an21xx or fx versions of ez-usb */
1984 static struct usbtest_info ez1_info = {
1985 .name = "EZ-USB device",
1986 .ep_in = 2,
1987 .ep_out = 2,
1988 .alt = 1,
1989 };
1990
1991 /* fx2 version of ez-usb */
1992 static struct usbtest_info ez2_info = {
1993 .name = "FX2 device",
1994 .ep_in = 6,
1995 .ep_out = 2,
1996 .alt = 1,
1997 };
1998
1999 /* ezusb family device with dedicated usb test firmware,
2000 */
2001 static struct usbtest_info fw_info = {
2002 .name = "usb test device",
2003 .ep_in = 2,
2004 .ep_out = 2,
2005 .alt = 1,
2006 .autoconf = 1, // iso and ctrl_out need autoconf
2007 .ctrl_out = 1,
2008 .iso = 1, // iso_ep's are #8 in/out
2009 };
2010
2011 /* peripheral running Linux and 'zero.c' test firmware, or
2012 * its user-mode cousin. different versions of this use
2013 * different hardware with the same vendor/product codes.
2014 * host side MUST rely on the endpoint descriptors.
2015 */
2016 static struct usbtest_info gz_info = {
2017 .name = "Linux gadget zero",
2018 .autoconf = 1,
2019 .ctrl_out = 1,
2020 .alt = 0,
2021 };
2022
2023 static struct usbtest_info um_info = {
2024 .name = "Linux user mode test driver",
2025 .autoconf = 1,
2026 .alt = -1,
2027 };
2028
2029 static struct usbtest_info um2_info = {
2030 .name = "Linux user mode ISO test driver",
2031 .autoconf = 1,
2032 .iso = 1,
2033 .alt = -1,
2034 };
2035
2036 #ifdef IBOT2
2037 /* this is a nice source of high speed bulk data;
2038 * uses an FX2, with firmware provided in the device
2039 */
2040 static struct usbtest_info ibot2_info = {
2041 .name = "iBOT2 webcam",
2042 .ep_in = 2,
2043 .alt = -1,
2044 };
2045 #endif
2046
2047 #ifdef GENERIC
2048 /* we can use any device to test control traffic */
2049 static struct usbtest_info generic_info = {
2050 .name = "Generic USB device",
2051 .alt = -1,
2052 };
2053 #endif
2054
2055 // FIXME remove this
2056 static struct usbtest_info hact_info = {
2057 .name = "FX2/hact",
2058 //.ep_in = 6,
2059 .ep_out = 2,
2060 .alt = -1,
2061 };
2062
2063
2064 static struct usb_device_id id_table [] = {
2065
2066 { USB_DEVICE (0x0547, 0x1002),
2067 .driver_info = (unsigned long) &hact_info,
2068 },
2069
2070 /*-------------------------------------------------------------*/
2071
2072 /* EZ-USB devices which download firmware to replace (or in our
2073 * case augment) the default device implementation.
2074 */
2075
2076 /* generic EZ-USB FX controller */
2077 { USB_DEVICE (0x0547, 0x2235),
2078 .driver_info = (unsigned long) &ez1_info,
2079 },
2080
2081 /* CY3671 development board with EZ-USB FX */
2082 { USB_DEVICE (0x0547, 0x0080),
2083 .driver_info = (unsigned long) &ez1_info,
2084 },
2085
2086 /* generic EZ-USB FX2 controller (or development board) */
2087 { USB_DEVICE (0x04b4, 0x8613),
2088 .driver_info = (unsigned long) &ez2_info,
2089 },
2090
2091 /* re-enumerated usb test device firmware */
2092 { USB_DEVICE (0xfff0, 0xfff0),
2093 .driver_info = (unsigned long) &fw_info,
2094 },
2095
2096 /* "Gadget Zero" firmware runs under Linux */
2097 { USB_DEVICE (0x0525, 0xa4a0),
2098 .driver_info = (unsigned long) &gz_info,
2099 },
2100
2101 /* so does a user-mode variant */
2102 { USB_DEVICE (0x0525, 0xa4a4),
2103 .driver_info = (unsigned long) &um_info,
2104 },
2105
2106 /* ... and a user-mode variant that talks iso */
2107 { USB_DEVICE (0x0525, 0xa4a3),
2108 .driver_info = (unsigned long) &um2_info,
2109 },
2110
2111 #ifdef KEYSPAN_19Qi
2112 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2113 // this does not coexist with the real Keyspan 19qi driver!
2114 { USB_DEVICE (0x06cd, 0x010b),
2115 .driver_info = (unsigned long) &ez1_info,
2116 },
2117 #endif
2118
2119 /*-------------------------------------------------------------*/
2120
2121 #ifdef IBOT2
2122 /* iBOT2 makes a nice source of high speed bulk-in data */
2123 // this does not coexist with a real iBOT2 driver!
2124 { USB_DEVICE (0x0b62, 0x0059),
2125 .driver_info = (unsigned long) &ibot2_info,
2126 },
2127 #endif
2128
2129 /*-------------------------------------------------------------*/
2130
2131 #ifdef GENERIC
2132 /* module params can specify devices to use for control tests */
2133 { .driver_info = (unsigned long) &generic_info, },
2134 #endif
2135
2136 /*-------------------------------------------------------------*/
2137
2138 { }
2139 };
2140 MODULE_DEVICE_TABLE (usb, id_table);
2141
2142 static struct usb_driver usbtest_driver = {
2143 .owner = THIS_MODULE,
2144 .name = "usbtest",
2145 .id_table = id_table,
2146 .probe = usbtest_probe,
2147 .ioctl = usbtest_ioctl,
2148 .disconnect = usbtest_disconnect,
2149 .suspend = usbtest_suspend,
2150 .resume = usbtest_resume,
2151 };
2152
2153 /*-------------------------------------------------------------------------*/
2154
2155 static int __init usbtest_init (void)
2156 {
2157 #ifdef GENERIC
2158 if (vendor)
2159 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product);
2160 #endif
2161 return usb_register (&usbtest_driver);
2162 }
2163 module_init (usbtest_init);
2164
2165 static void __exit usbtest_exit (void)
2166 {
2167 usb_deregister (&usbtest_driver);
2168 }
2169 module_exit (usbtest_exit);
2170
2171 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2172 MODULE_LICENSE ("GPL");
2173
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