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[PATCH] Kprobes: preempt_disable/enable() simplification
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / misc / usbtest.c
blob2997f558159b12cf12e29e5348e307fbd0812aa1
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 <linux/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
385 for (i = 0; i < nents; i++) {
386 char *buf;
387
388 buf = kmalloc (size, SLAB_KERNEL);
389 if (!buf) {
390 free_sglist (sg, i);
391 return NULL;
392 }
393 memset (buf, 0, size);
394
395 /* kmalloc pages are always physically contiguous! */
396 sg_init_one(&sg[i], buf, size);
397
398 if (vary) {
399 size += vary;
400 size %= max;
401 if (size == 0)
402 size = (vary < max) ? vary : max;
403 }
404 }
405
406 return sg;
407 }
408
409 static int perform_sglist (
410 struct usb_device *udev,
411 unsigned iterations,
412 int pipe,
413 struct usb_sg_request *req,
414 struct scatterlist *sg,
415 int nents
416 )
417 {
418 int retval = 0;
419
420 while (retval == 0 && iterations-- > 0) {
421 retval = usb_sg_init (req, udev, pipe,
422 (udev->speed == USB_SPEED_HIGH)
423 ? (INTERRUPT_RATE << 3)
424 : INTERRUPT_RATE,
425 sg, nents, 0, SLAB_KERNEL);
426
427 if (retval)
428 break;
429 usb_sg_wait (req);
430 retval = req->status;
431
432 /* FIXME if endpoint halted, clear halt (and log) */
433 }
434
435 // FIXME for unlink or fault handling tests, don't report
436 // failure if retval is as we expected ...
437
438 if (retval)
439 dbg ("perform_sglist failed, iterations left %d, status %d",
440 iterations, retval);
441 return retval;
442 }
443
444
445 /*-------------------------------------------------------------------------*/
446
447 /* unqueued control message testing
448 *
449 * there's a nice set of device functional requirements in chapter 9 of the
450 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
451 * special test firmware.
452 *
453 * we know the device is configured (or suspended) by the time it's visible
454 * through usbfs. we can't change that, so we won't test enumeration (which
455 * worked 'well enough' to get here, this time), power management (ditto),
456 * or remote wakeup (which needs human interaction).
457 */
458
459 static unsigned realworld = 1;
460 module_param (realworld, uint, 0);
461 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
462
463 static int get_altsetting (struct usbtest_dev *dev)
464 {
465 struct usb_interface *iface = dev->intf;
466 struct usb_device *udev = interface_to_usbdev (iface);
467 int retval;
468
469 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
470 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
471 0, iface->altsetting [0].desc.bInterfaceNumber,
472 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
473 switch (retval) {
474 case 1:
475 return dev->buf [0];
476 case 0:
477 retval = -ERANGE;
478 // FALLTHROUGH
479 default:
480 return retval;
481 }
482 }
483
484 static int set_altsetting (struct usbtest_dev *dev, int alternate)
485 {
486 struct usb_interface *iface = dev->intf;
487 struct usb_device *udev;
488
489 if (alternate < 0 || alternate >= 256)
490 return -EINVAL;
491
492 udev = interface_to_usbdev (iface);
493 return usb_set_interface (udev,
494 iface->altsetting [0].desc.bInterfaceNumber,
495 alternate);
496 }
497
498 static int is_good_config (char *buf, int len)
499 {
500 struct usb_config_descriptor *config;
501
502 if (len < sizeof *config)
503 return 0;
504 config = (struct usb_config_descriptor *) buf;
505
506 switch (config->bDescriptorType) {
507 case USB_DT_CONFIG:
508 case USB_DT_OTHER_SPEED_CONFIG:
509 if (config->bLength != 9) {
510 dbg ("bogus config descriptor length");
511 return 0;
512 }
513 /* this bit 'must be 1' but often isn't */
514 if (!realworld && !(config->bmAttributes & 0x80)) {
515 dbg ("high bit of config attributes not set");
516 return 0;
517 }
518 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
519 dbg ("reserved config bits set");
520 return 0;
521 }
522 break;
523 default:
524 return 0;
525 }
526
527 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
528 return 1;
529 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
530 return 1;
531 dbg ("bogus config descriptor read size");
532 return 0;
533 }
534
535 /* sanity test for standard requests working with usb_control_mesg() and some
536 * of the utility functions which use it.
537 *
538 * this doesn't test how endpoint halts behave or data toggles get set, since
539 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
540 * halt or toggle). toggle testing is impractical without support from hcds.
541 *
542 * this avoids failing devices linux would normally work with, by not testing
543 * config/altsetting operations for devices that only support their defaults.
544 * such devices rarely support those needless operations.
545 *
546 * NOTE that since this is a sanity test, it's not examining boundary cases
547 * to see if usbcore, hcd, and device all behave right. such testing would
548 * involve varied read sizes and other operation sequences.
549 */
550 static int ch9_postconfig (struct usbtest_dev *dev)
551 {
552 struct usb_interface *iface = dev->intf;
553 struct usb_device *udev = interface_to_usbdev (iface);
554 int i, alt, retval;
555
556 /* [9.2.3] if there's more than one altsetting, we need to be able to
557 * set and get each one. mostly trusts the descriptors from usbcore.
558 */
559 for (i = 0; i < iface->num_altsetting; i++) {
560
561 /* 9.2.3 constrains the range here */
562 alt = iface->altsetting [i].desc.bAlternateSetting;
563 if (alt < 0 || alt >= iface->num_altsetting) {
564 dev_dbg (&iface->dev,
565 "invalid alt [%d].bAltSetting = %d\n",
566 i, alt);
567 }
568
569 /* [real world] get/set unimplemented if there's only one */
570 if (realworld && iface->num_altsetting == 1)
571 continue;
572
573 /* [9.4.10] set_interface */
574 retval = set_altsetting (dev, alt);
575 if (retval) {
576 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n",
577 alt, retval);
578 return retval;
579 }
580
581 /* [9.4.4] get_interface always works */
582 retval = get_altsetting (dev);
583 if (retval != alt) {
584 dev_dbg (&iface->dev, "get alt should be %d, was %d\n",
585 alt, retval);
586 return (retval < 0) ? retval : -EDOM;
587 }
588
589 }
590
591 /* [real world] get_config unimplemented if there's only one */
592 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
593 int expected = udev->actconfig->desc.bConfigurationValue;
594
595 /* [9.4.2] get_configuration always works
596 * ... although some cheap devices (like one TI Hub I've got)
597 * won't return config descriptors except before set_config.
598 */
599 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
600 USB_REQ_GET_CONFIGURATION,
601 USB_DIR_IN | USB_RECIP_DEVICE,
602 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
603 if (retval != 1 || dev->buf [0] != expected) {
604 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n",
605 retval, dev->buf[0], expected);
606 return (retval < 0) ? retval : -EDOM;
607 }
608 }
609
610 /* there's always [9.4.3] a device descriptor [9.6.1] */
611 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
612 dev->buf, sizeof udev->descriptor);
613 if (retval != sizeof udev->descriptor) {
614 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval);
615 return (retval < 0) ? retval : -EDOM;
616 }
617
618 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
619 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
620 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
621 dev->buf, TBUF_SIZE);
622 if (!is_good_config (dev->buf, retval)) {
623 dev_dbg (&iface->dev,
624 "config [%d] descriptor --> %d\n",
625 i, retval);
626 return (retval < 0) ? retval : -EDOM;
627 }
628
629 // FIXME cross-checking udev->config[i] to make sure usbcore
630 // parsed it right (etc) would be good testing paranoia
631 }
632
633 /* and sometimes [9.2.6.6] speed dependent descriptors */
634 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
635 struct usb_qualifier_descriptor *d = NULL;
636
637 /* device qualifier [9.6.2] */
638 retval = usb_get_descriptor (udev,
639 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
640 sizeof (struct usb_qualifier_descriptor));
641 if (retval == -EPIPE) {
642 if (udev->speed == USB_SPEED_HIGH) {
643 dev_dbg (&iface->dev,
644 "hs dev qualifier --> %d\n",
645 retval);
646 return (retval < 0) ? retval : -EDOM;
647 }
648 /* usb2.0 but not high-speed capable; fine */
649 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
650 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval);
651 return (retval < 0) ? retval : -EDOM;
652 } else
653 d = (struct usb_qualifier_descriptor *) dev->buf;
654
655 /* might not have [9.6.2] any other-speed configs [9.6.4] */
656 if (d) {
657 unsigned max = d->bNumConfigurations;
658 for (i = 0; i < max; i++) {
659 retval = usb_get_descriptor (udev,
660 USB_DT_OTHER_SPEED_CONFIG, i,
661 dev->buf, TBUF_SIZE);
662 if (!is_good_config (dev->buf, retval)) {
663 dev_dbg (&iface->dev,
664 "other speed config --> %d\n",
665 retval);
666 return (retval < 0) ? retval : -EDOM;
667 }
668 }
669 }
670 }
671 // FIXME fetch strings from at least the device descriptor
672
673 /* [9.4.5] get_status always works */
674 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
675 if (retval != 2) {
676 dev_dbg (&iface->dev, "get dev status --> %d\n", retval);
677 return (retval < 0) ? retval : -EDOM;
678 }
679
680 // FIXME configuration.bmAttributes says if we could try to set/clear
681 // the device's remote wakeup feature ... if we can, test that here
682
683 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
684 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
685 if (retval != 2) {
686 dev_dbg (&iface->dev, "get interface status --> %d\n", retval);
687 return (retval < 0) ? retval : -EDOM;
688 }
689 // FIXME get status for each endpoint in the interface
690
691 return 0;
692 }
693
694 /*-------------------------------------------------------------------------*/
695
696 /* use ch9 requests to test whether:
697 * (a) queues work for control, keeping N subtests queued and
698 * active (auto-resubmit) for M loops through the queue.
699 * (b) protocol stalls (control-only) will autorecover.
700 * it's not like bulk/intr; no halt clearing.
701 * (c) short control reads are reported and handled.
702 * (d) queues are always processed in-order
703 */
704
705 struct ctrl_ctx {
706 spinlock_t lock;
707 struct usbtest_dev *dev;
708 struct completion complete;
709 unsigned count;
710 unsigned pending;
711 int status;
712 struct urb **urb;
713 struct usbtest_param *param;
714 int last;
715 };
716
717 #define NUM_SUBCASES 15 /* how many test subcases here? */
718
719 struct subcase {
720 struct usb_ctrlrequest setup;
721 int number;
722 int expected;
723 };
724
725 static void ctrl_complete (struct urb *urb, struct pt_regs *regs)
726 {
727 struct ctrl_ctx *ctx = urb->context;
728 struct usb_ctrlrequest *reqp;
729 struct subcase *subcase;
730 int status = urb->status;
731
732 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
733 subcase = container_of (reqp, struct subcase, setup);
734
735 spin_lock (&ctx->lock);
736 ctx->count--;
737 ctx->pending--;
738
739 /* queue must transfer and complete in fifo order, unless
740 * usb_unlink_urb() is used to unlink something not at the
741 * physical queue head (not tested).
742 */
743 if (subcase->number > 0) {
744 if ((subcase->number - ctx->last) != 1) {
745 dbg ("subcase %d completed out of order, last %d",
746 subcase->number, ctx->last);
747 status = -EDOM;
748 ctx->last = subcase->number;
749 goto error;
750 }
751 }
752 ctx->last = subcase->number;
753
754 /* succeed or fault in only one way? */
755 if (status == subcase->expected)
756 status = 0;
757
758 /* async unlink for cleanup? */
759 else if (status != -ECONNRESET) {
760
761 /* some faults are allowed, not required */
762 if (subcase->expected > 0 && (
763 ((urb->status == -subcase->expected /* happened */
764 || urb->status == 0)))) /* didn't */
765 status = 0;
766 /* sometimes more than one fault is allowed */
767 else if (subcase->number == 12 && status == -EPIPE)
768 status = 0;
769 else
770 dbg ("subtest %d error, status %d",
771 subcase->number, status);
772 }
773
774 /* unexpected status codes mean errors; ideally, in hardware */
775 if (status) {
776 error:
777 if (ctx->status == 0) {
778 int i;
779
780 ctx->status = status;
781 info ("control queue %02x.%02x, err %d, %d left",
782 reqp->bRequestType, reqp->bRequest,
783 status, ctx->count);
784
785 /* FIXME this "unlink everything" exit route should
786 * be a separate test case.
787 */
788
789 /* unlink whatever's still pending */
790 for (i = 1; i < ctx->param->sglen; i++) {
791 struct urb *u = ctx->urb [
792 (i + subcase->number) % ctx->param->sglen];
793
794 if (u == urb || !u->dev)
795 continue;
796 status = usb_unlink_urb (u);
797 switch (status) {
798 case -EINPROGRESS:
799 case -EBUSY:
800 case -EIDRM:
801 continue;
802 default:
803 dbg ("urb unlink --> %d", status);
804 }
805 }
806 status = ctx->status;
807 }
808 }
809
810 /* resubmit if we need to, else mark this as done */
811 if ((status == 0) && (ctx->pending < ctx->count)) {
812 if ((status = usb_submit_urb (urb, SLAB_ATOMIC)) != 0) {
813 dbg ("can't resubmit ctrl %02x.%02x, err %d",
814 reqp->bRequestType, reqp->bRequest, status);
815 urb->dev = NULL;
816 } else
817 ctx->pending++;
818 } else
819 urb->dev = NULL;
820
821 /* signal completion when nothing's queued */
822 if (ctx->pending == 0)
823 complete (&ctx->complete);
824 spin_unlock (&ctx->lock);
825 }
826
827 static int
828 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
829 {
830 struct usb_device *udev = testdev_to_usbdev (dev);
831 struct urb **urb;
832 struct ctrl_ctx context;
833 int i;
834
835 spin_lock_init (&context.lock);
836 context.dev = dev;
837 init_completion (&context.complete);
838 context.count = param->sglen * param->iterations;
839 context.pending = 0;
840 context.status = -ENOMEM;
841 context.param = param;
842 context.last = -1;
843
844 /* allocate and init the urbs we'll queue.
845 * as with bulk/intr sglists, sglen is the queue depth; it also
846 * controls which subtests run (more tests than sglen) or rerun.
847 */
848 urb = kmalloc (param->sglen * sizeof (struct urb *), SLAB_KERNEL);
849 if (!urb)
850 return -ENOMEM;
851 memset (urb, 0, param->sglen * sizeof (struct urb *));
852 for (i = 0; i < param->sglen; i++) {
853 int pipe = usb_rcvctrlpipe (udev, 0);
854 unsigned len;
855 struct urb *u;
856 struct usb_ctrlrequest req;
857 struct subcase *reqp;
858 int expected = 0;
859
860 /* requests here are mostly expected to succeed on any
861 * device, but some are chosen to trigger protocol stalls
862 * or short reads.
863 */
864 memset (&req, 0, sizeof req);
865 req.bRequest = USB_REQ_GET_DESCRIPTOR;
866 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
867
868 switch (i % NUM_SUBCASES) {
869 case 0: // get device descriptor
870 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
871 len = sizeof (struct usb_device_descriptor);
872 break;
873 case 1: // get first config descriptor (only)
874 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
875 len = sizeof (struct usb_config_descriptor);
876 break;
877 case 2: // get altsetting (OFTEN STALLS)
878 req.bRequest = USB_REQ_GET_INTERFACE;
879 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
880 // index = 0 means first interface
881 len = 1;
882 expected = EPIPE;
883 break;
884 case 3: // get interface status
885 req.bRequest = USB_REQ_GET_STATUS;
886 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
887 // interface 0
888 len = 2;
889 break;
890 case 4: // get device status
891 req.bRequest = USB_REQ_GET_STATUS;
892 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
893 len = 2;
894 break;
895 case 5: // get device qualifier (MAY STALL)
896 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
897 len = sizeof (struct usb_qualifier_descriptor);
898 if (udev->speed != USB_SPEED_HIGH)
899 expected = EPIPE;
900 break;
901 case 6: // get first config descriptor, plus interface
902 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
903 len = sizeof (struct usb_config_descriptor);
904 len += sizeof (struct usb_interface_descriptor);
905 break;
906 case 7: // get interface descriptor (ALWAYS STALLS)
907 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
908 // interface == 0
909 len = sizeof (struct usb_interface_descriptor);
910 expected = EPIPE;
911 break;
912 // NOTE: two consecutive stalls in the queue here.
913 // that tests fault recovery a bit more aggressively.
914 case 8: // clear endpoint halt (USUALLY STALLS)
915 req.bRequest = USB_REQ_CLEAR_FEATURE;
916 req.bRequestType = USB_RECIP_ENDPOINT;
917 // wValue 0 == ep halt
918 // wIndex 0 == ep0 (shouldn't halt!)
919 len = 0;
920 pipe = usb_sndctrlpipe (udev, 0);
921 expected = EPIPE;
922 break;
923 case 9: // get endpoint status
924 req.bRequest = USB_REQ_GET_STATUS;
925 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
926 // endpoint 0
927 len = 2;
928 break;
929 case 10: // trigger short read (EREMOTEIO)
930 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
931 len = 1024;
932 expected = -EREMOTEIO;
933 break;
934 // NOTE: two consecutive _different_ faults in the queue.
935 case 11: // get endpoint descriptor (ALWAYS STALLS)
936 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
937 // endpoint == 0
938 len = sizeof (struct usb_interface_descriptor);
939 expected = EPIPE;
940 break;
941 // NOTE: sometimes even a third fault in the queue!
942 case 12: // get string 0 descriptor (MAY STALL)
943 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
944 // string == 0, for language IDs
945 len = sizeof (struct usb_interface_descriptor);
946 // may succeed when > 4 languages
947 expected = EREMOTEIO; // or EPIPE, if no strings
948 break;
949 case 13: // short read, resembling case 10
950 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
951 // last data packet "should" be DATA1, not DATA0
952 len = 1024 - udev->descriptor.bMaxPacketSize0;
953 expected = -EREMOTEIO;
954 break;
955 case 14: // short read; try to fill the last packet
956 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
957 // device descriptor size == 18 bytes
958 len = udev->descriptor.bMaxPacketSize0;
959 switch (len) {
960 case 8: len = 24; break;
961 case 16: len = 32; break;
962 }
963 expected = -EREMOTEIO;
964 break;
965 default:
966 err ("bogus number of ctrl queue testcases!");
967 context.status = -EINVAL;
968 goto cleanup;
969 }
970 req.wLength = cpu_to_le16 (len);
971 urb [i] = u = simple_alloc_urb (udev, pipe, len);
972 if (!u)
973 goto cleanup;
974
975 reqp = usb_buffer_alloc (udev, sizeof *reqp, SLAB_KERNEL,
976 &u->setup_dma);
977 if (!reqp)
978 goto cleanup;
979 reqp->setup = req;
980 reqp->number = i % NUM_SUBCASES;
981 reqp->expected = expected;
982 u->setup_packet = (char *) &reqp->setup;
983 u->transfer_flags |= URB_NO_SETUP_DMA_MAP;
984
985 u->context = &context;
986 u->complete = ctrl_complete;
987 }
988
989 /* queue the urbs */
990 context.urb = urb;
991 spin_lock_irq (&context.lock);
992 for (i = 0; i < param->sglen; i++) {
993 context.status = usb_submit_urb (urb [i], SLAB_ATOMIC);
994 if (context.status != 0) {
995 dbg ("can't submit urb[%d], status %d",
996 i, context.status);
997 context.count = context.pending;
998 break;
999 }
1000 context.pending++;
1001 }
1002 spin_unlock_irq (&context.lock);
1003
1004 /* FIXME set timer and time out; provide a disconnect hook */
1005
1006 /* wait for the last one to complete */
1007 if (context.pending > 0)
1008 wait_for_completion (&context.complete);
1009
1010 cleanup:
1011 for (i = 0; i < param->sglen; i++) {
1012 if (!urb [i])
1013 continue;
1014 urb [i]->dev = udev;
1015 if (urb [i]->setup_packet)
1016 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest),
1017 urb [i]->setup_packet,
1018 urb [i]->setup_dma);
1019 simple_free_urb (urb [i]);
1020 }
1021 kfree (urb);
1022 return context.status;
1023 }
1024 #undef NUM_SUBCASES
1025
1026
1027 /*-------------------------------------------------------------------------*/
1028
1029 static void unlink1_callback (struct urb *urb, struct pt_regs *regs)
1030 {
1031 int status = urb->status;
1032
1033 // we "know" -EPIPE (stall) never happens
1034 if (!status)
1035 status = usb_submit_urb (urb, SLAB_ATOMIC);
1036 if (status) {
1037 urb->status = status;
1038 complete ((struct completion *) urb->context);
1039 }
1040 }
1041
1042 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async)
1043 {
1044 struct urb *urb;
1045 struct completion completion;
1046 int retval = 0;
1047
1048 init_completion (&completion);
1049 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size);
1050 if (!urb)
1051 return -ENOMEM;
1052 urb->context = &completion;
1053 urb->complete = unlink1_callback;
1054
1055 /* keep the endpoint busy. there are lots of hc/hcd-internal
1056 * states, and testing should get to all of them over time.
1057 *
1058 * FIXME want additional tests for when endpoint is STALLing
1059 * due to errors, or is just NAKing requests.
1060 */
1061 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) {
1062 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval);
1063 return retval;
1064 }
1065
1066 /* unlinking that should always work. variable delay tests more
1067 * hcd states and code paths, even with little other system load.
1068 */
1069 msleep (jiffies % (2 * INTERRUPT_RATE));
1070 if (async) {
1071 retry:
1072 retval = usb_unlink_urb (urb);
1073 if (retval == -EBUSY || retval == -EIDRM) {
1074 /* we can't unlink urbs while they're completing.
1075 * or if they've completed, and we haven't resubmitted.
1076 * "normal" drivers would prevent resubmission, but
1077 * since we're testing unlink paths, we can't.
1078 */
1079 dev_dbg (&dev->intf->dev, "unlink retry\n");
1080 goto retry;
1081 }
1082 } else
1083 usb_kill_urb (urb);
1084 if (!(retval == 0 || retval == -EINPROGRESS)) {
1085 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval);
1086 return retval;
1087 }
1088
1089 wait_for_completion (&completion);
1090 retval = urb->status;
1091 simple_free_urb (urb);
1092
1093 if (async)
1094 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1095 else
1096 return (retval == -ENOENT || retval == -EPERM) ?
1097 0 : retval - 2000;
1098 }
1099
1100 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1101 {
1102 int retval = 0;
1103
1104 /* test sync and async paths */
1105 retval = unlink1 (dev, pipe, len, 1);
1106 if (!retval)
1107 retval = unlink1 (dev, pipe, len, 0);
1108 return retval;
1109 }
1110
1111 /*-------------------------------------------------------------------------*/
1112
1113 static int verify_not_halted (int ep, struct urb *urb)
1114 {
1115 int retval;
1116 u16 status;
1117
1118 /* shouldn't look or act halted */
1119 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1120 if (retval < 0) {
1121 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval);
1122 return retval;
1123 }
1124 if (status != 0) {
1125 dbg ("ep %02x bogus status: %04x != 0", ep, status);
1126 return -EINVAL;
1127 }
1128 retval = simple_io (urb, 1, 0, 0, __FUNCTION__);
1129 if (retval != 0)
1130 return -EINVAL;
1131 return 0;
1132 }
1133
1134 static int verify_halted (int ep, struct urb *urb)
1135 {
1136 int retval;
1137 u16 status;
1138
1139 /* should look and act halted */
1140 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1141 if (retval < 0) {
1142 dbg ("ep %02x couldn't get halt status, %d", ep, retval);
1143 return retval;
1144 }
1145 if (status != 1) {
1146 dbg ("ep %02x bogus status: %04x != 1", ep, status);
1147 return -EINVAL;
1148 }
1149 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__);
1150 if (retval != -EPIPE)
1151 return -EINVAL;
1152 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted");
1153 if (retval != -EPIPE)
1154 return -EINVAL;
1155 return 0;
1156 }
1157
1158 static int test_halt (int ep, struct urb *urb)
1159 {
1160 int retval;
1161
1162 /* shouldn't look or act halted now */
1163 retval = verify_not_halted (ep, urb);
1164 if (retval < 0)
1165 return retval;
1166
1167 /* set halt (protocol test only), verify it worked */
1168 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1169 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1170 USB_ENDPOINT_HALT, ep,
1171 NULL, 0, USB_CTRL_SET_TIMEOUT);
1172 if (retval < 0) {
1173 dbg ("ep %02x couldn't set halt, %d", ep, retval);
1174 return retval;
1175 }
1176 retval = verify_halted (ep, urb);
1177 if (retval < 0)
1178 return retval;
1179
1180 /* clear halt (tests API + protocol), verify it worked */
1181 retval = usb_clear_halt (urb->dev, urb->pipe);
1182 if (retval < 0) {
1183 dbg ("ep %02x couldn't clear halt, %d", ep, retval);
1184 return retval;
1185 }
1186 retval = verify_not_halted (ep, urb);
1187 if (retval < 0)
1188 return retval;
1189
1190 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1191
1192 return 0;
1193 }
1194
1195 static int halt_simple (struct usbtest_dev *dev)
1196 {
1197 int ep;
1198 int retval = 0;
1199 struct urb *urb;
1200
1201 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1202 if (urb == NULL)
1203 return -ENOMEM;
1204
1205 if (dev->in_pipe) {
1206 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1207 urb->pipe = dev->in_pipe;
1208 retval = test_halt (ep, urb);
1209 if (retval < 0)
1210 goto done;
1211 }
1212
1213 if (dev->out_pipe) {
1214 ep = usb_pipeendpoint (dev->out_pipe);
1215 urb->pipe = dev->out_pipe;
1216 retval = test_halt (ep, urb);
1217 }
1218 done:
1219 simple_free_urb (urb);
1220 return retval;
1221 }
1222
1223 /*-------------------------------------------------------------------------*/
1224
1225 /* Control OUT tests use the vendor control requests from Intel's
1226 * USB 2.0 compliance test device: write a buffer, read it back.
1227 *
1228 * Intel's spec only _requires_ that it work for one packet, which
1229 * is pretty weak. Some HCDs place limits here; most devices will
1230 * need to be able to handle more than one OUT data packet. We'll
1231 * try whatever we're told to try.
1232 */
1233 static int ctrl_out (struct usbtest_dev *dev,
1234 unsigned count, unsigned length, unsigned vary)
1235 {
1236 unsigned i, j, len, retval;
1237 u8 *buf;
1238 char *what = "?";
1239 struct usb_device *udev;
1240
1241 if (length < 1 || length > 0xffff || vary >= length)
1242 return -EINVAL;
1243
1244 buf = kmalloc(length, SLAB_KERNEL);
1245 if (!buf)
1246 return -ENOMEM;
1247
1248 udev = testdev_to_usbdev (dev);
1249 len = length;
1250 retval = 0;
1251
1252 /* NOTE: hardware might well act differently if we pushed it
1253 * with lots back-to-back queued requests.
1254 */
1255 for (i = 0; i < count; i++) {
1256 /* write patterned data */
1257 for (j = 0; j < len; j++)
1258 buf [j] = i + j;
1259 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1260 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1261 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1262 if (retval != len) {
1263 what = "write";
1264 if (retval >= 0) {
1265 INFO(dev, "ctrl_out, wlen %d (expected %d)\n",
1266 retval, len);
1267 retval = -EBADMSG;
1268 }
1269 break;
1270 }
1271
1272 /* read it back -- assuming nothing intervened!! */
1273 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1274 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1275 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1276 if (retval != len) {
1277 what = "read";
1278 if (retval >= 0) {
1279 INFO(dev, "ctrl_out, rlen %d (expected %d)\n",
1280 retval, len);
1281 retval = -EBADMSG;
1282 }
1283 break;
1284 }
1285
1286 /* fail if we can't verify */
1287 for (j = 0; j < len; j++) {
1288 if (buf [j] != (u8) (i + j)) {
1289 INFO (dev, "ctrl_out, byte %d is %d not %d\n",
1290 j, buf [j], (u8) i + j);
1291 retval = -EBADMSG;
1292 break;
1293 }
1294 }
1295 if (retval < 0) {
1296 what = "verify";
1297 break;
1298 }
1299
1300 len += vary;
1301
1302 /* [real world] the "zero bytes IN" case isn't really used.
1303 * hardware can easily trip up in this wierd case, since its
1304 * status stage is IN, not OUT like other ep0in transfers.
1305 */
1306 if (len > length)
1307 len = realworld ? 1 : 0;
1308 }
1309
1310 if (retval < 0)
1311 INFO (dev, "ctrl_out %s failed, code %d, count %d\n",
1312 what, retval, i);
1313
1314 kfree (buf);
1315 return retval;
1316 }
1317
1318 /*-------------------------------------------------------------------------*/
1319
1320 /* ISO tests ... mimics common usage
1321 * - buffer length is split into N packets (mostly maxpacket sized)
1322 * - multi-buffers according to sglen
1323 */
1324
1325 struct iso_context {
1326 unsigned count;
1327 unsigned pending;
1328 spinlock_t lock;
1329 struct completion done;
1330 unsigned long errors;
1331 struct usbtest_dev *dev;
1332 };
1333
1334 static void iso_callback (struct urb *urb, struct pt_regs *regs)
1335 {
1336 struct iso_context *ctx = urb->context;
1337
1338 spin_lock(&ctx->lock);
1339 ctx->count--;
1340
1341 if (urb->error_count > 0)
1342 ctx->errors += urb->error_count;
1343
1344 if (urb->status == 0 && ctx->count > (ctx->pending - 1)) {
1345 int status = usb_submit_urb (urb, GFP_ATOMIC);
1346 switch (status) {
1347 case 0:
1348 goto done;
1349 default:
1350 dev_dbg (&ctx->dev->intf->dev,
1351 "iso resubmit err %d\n",
1352 status);
1353 /* FALLTHROUGH */
1354 case -ENODEV: /* disconnected */
1355 break;
1356 }
1357 }
1358 simple_free_urb (urb);
1359
1360 ctx->pending--;
1361 if (ctx->pending == 0) {
1362 if (ctx->errors)
1363 dev_dbg (&ctx->dev->intf->dev,
1364 "iso test, %lu errors\n",
1365 ctx->errors);
1366 complete (&ctx->done);
1367 }
1368 done:
1369 spin_unlock(&ctx->lock);
1370 }
1371
1372 static struct urb *iso_alloc_urb (
1373 struct usb_device *udev,
1374 int pipe,
1375 struct usb_endpoint_descriptor *desc,
1376 long bytes
1377 )
1378 {
1379 struct urb *urb;
1380 unsigned i, maxp, packets;
1381
1382 if (bytes < 0 || !desc)
1383 return NULL;
1384 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1385 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1386 packets = (bytes + maxp - 1) / maxp;
1387
1388 urb = usb_alloc_urb (packets, SLAB_KERNEL);
1389 if (!urb)
1390 return urb;
1391 urb->dev = udev;
1392 urb->pipe = pipe;
1393
1394 urb->number_of_packets = packets;
1395 urb->transfer_buffer_length = bytes;
1396 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL,
1397 &urb->transfer_dma);
1398 if (!urb->transfer_buffer) {
1399 usb_free_urb (urb);
1400 return NULL;
1401 }
1402 memset (urb->transfer_buffer, 0, bytes);
1403 for (i = 0; i < packets; i++) {
1404 /* here, only the last packet will be short */
1405 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1406 bytes -= urb->iso_frame_desc[i].length;
1407
1408 urb->iso_frame_desc[i].offset = maxp * i;
1409 }
1410
1411 urb->complete = iso_callback;
1412 // urb->context = SET BY CALLER
1413 urb->interval = 1 << (desc->bInterval - 1);
1414 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1415 return urb;
1416 }
1417
1418 static int
1419 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1420 int pipe, struct usb_endpoint_descriptor *desc)
1421 {
1422 struct iso_context context;
1423 struct usb_device *udev;
1424 unsigned i;
1425 unsigned long packets = 0;
1426 int status;
1427 struct urb *urbs[10]; /* FIXME no limit */
1428
1429 if (param->sglen > 10)
1430 return -EDOM;
1431
1432 context.count = param->iterations * param->sglen;
1433 context.pending = param->sglen;
1434 context.errors = 0;
1435 context.dev = dev;
1436 init_completion (&context.done);
1437 spin_lock_init (&context.lock);
1438
1439 memset (urbs, 0, sizeof urbs);
1440 udev = testdev_to_usbdev (dev);
1441 dev_dbg (&dev->intf->dev,
1442 "... iso period %d %sframes, wMaxPacket %04x\n",
1443 1 << (desc->bInterval - 1),
1444 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1445 le16_to_cpu(desc->wMaxPacketSize));
1446
1447 for (i = 0; i < param->sglen; i++) {
1448 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1449 param->length);
1450 if (!urbs [i]) {
1451 status = -ENOMEM;
1452 goto fail;
1453 }
1454 packets += urbs[i]->number_of_packets;
1455 urbs [i]->context = &context;
1456 }
1457 packets *= param->iterations;
1458 dev_dbg (&dev->intf->dev,
1459 "... total %lu msec (%lu packets)\n",
1460 (packets * (1 << (desc->bInterval - 1)))
1461 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1462 packets);
1463
1464 spin_lock_irq (&context.lock);
1465 for (i = 0; i < param->sglen; i++) {
1466 status = usb_submit_urb (urbs [i], SLAB_ATOMIC);
1467 if (status < 0) {
1468 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1469 if (i == 0) {
1470 spin_unlock_irq (&context.lock);
1471 goto fail;
1472 }
1473
1474 simple_free_urb (urbs [i]);
1475 context.pending--;
1476 }
1477 }
1478 spin_unlock_irq (&context.lock);
1479
1480 wait_for_completion (&context.done);
1481 return 0;
1482
1483 fail:
1484 for (i = 0; i < param->sglen; i++) {
1485 if (urbs [i])
1486 simple_free_urb (urbs [i]);
1487 }
1488 return status;
1489 }
1490
1491 /*-------------------------------------------------------------------------*/
1492
1493 /* We only have this one interface to user space, through usbfs.
1494 * User mode code can scan usbfs to find N different devices (maybe on
1495 * different busses) to use when testing, and allocate one thread per
1496 * test. So discovery is simplified, and we have no device naming issues.
1497 *
1498 * Don't use these only as stress/load tests. Use them along with with
1499 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1500 * video capture, and so on. Run different tests at different times, in
1501 * different sequences. Nothing here should interact with other devices,
1502 * except indirectly by consuming USB bandwidth and CPU resources for test
1503 * threads and request completion. But the only way to know that for sure
1504 * is to test when HC queues are in use by many devices.
1505 */
1506
1507 static int
1508 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1509 {
1510 struct usbtest_dev *dev = usb_get_intfdata (intf);
1511 struct usb_device *udev = testdev_to_usbdev (dev);
1512 struct usbtest_param *param = buf;
1513 int retval = -EOPNOTSUPP;
1514 struct urb *urb;
1515 struct scatterlist *sg;
1516 struct usb_sg_request req;
1517 struct timeval start;
1518 unsigned i;
1519
1520 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1521
1522 if (code != USBTEST_REQUEST)
1523 return -EOPNOTSUPP;
1524
1525 if (param->iterations <= 0 || param->length < 0
1526 || param->sglen < 0 || param->vary < 0)
1527 return -EINVAL;
1528
1529 if (down_interruptible (&dev->sem))
1530 return -ERESTARTSYS;
1531
1532 if (intf->dev.power.power_state.event != PM_EVENT_ON) {
1533 up (&dev->sem);
1534 return -EHOSTUNREACH;
1535 }
1536
1537 /* some devices, like ez-usb default devices, need a non-default
1538 * altsetting to have any active endpoints. some tests change
1539 * altsettings; force a default so most tests don't need to check.
1540 */
1541 if (dev->info->alt >= 0) {
1542 int res;
1543
1544 if (intf->altsetting->desc.bInterfaceNumber) {
1545 up (&dev->sem);
1546 return -ENODEV;
1547 }
1548 res = set_altsetting (dev, dev->info->alt);
1549 if (res) {
1550 dev_err (&intf->dev,
1551 "set altsetting to %d failed, %d\n",
1552 dev->info->alt, res);
1553 up (&dev->sem);
1554 return res;
1555 }
1556 }
1557
1558 /*
1559 * Just a bunch of test cases that every HCD is expected to handle.
1560 *
1561 * Some may need specific firmware, though it'd be good to have
1562 * one firmware image to handle all the test cases.
1563 *
1564 * FIXME add more tests! cancel requests, verify the data, control
1565 * queueing, concurrent read+write threads, and so on.
1566 */
1567 do_gettimeofday (&start);
1568 switch (param->test_num) {
1569
1570 case 0:
1571 dev_dbg (&intf->dev, "TEST 0: NOP\n");
1572 retval = 0;
1573 break;
1574
1575 /* Simple non-queued bulk I/O tests */
1576 case 1:
1577 if (dev->out_pipe == 0)
1578 break;
1579 dev_dbg (&intf->dev,
1580 "TEST 1: write %d bytes %u times\n",
1581 param->length, param->iterations);
1582 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1583 if (!urb) {
1584 retval = -ENOMEM;
1585 break;
1586 }
1587 // FIRMWARE: bulk sink (maybe accepts short writes)
1588 retval = simple_io (urb, param->iterations, 0, 0, "test1");
1589 simple_free_urb (urb);
1590 break;
1591 case 2:
1592 if (dev->in_pipe == 0)
1593 break;
1594 dev_dbg (&intf->dev,
1595 "TEST 2: read %d bytes %u times\n",
1596 param->length, param->iterations);
1597 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1598 if (!urb) {
1599 retval = -ENOMEM;
1600 break;
1601 }
1602 // FIRMWARE: bulk source (maybe generates short writes)
1603 retval = simple_io (urb, param->iterations, 0, 0, "test2");
1604 simple_free_urb (urb);
1605 break;
1606 case 3:
1607 if (dev->out_pipe == 0 || param->vary == 0)
1608 break;
1609 dev_dbg (&intf->dev,
1610 "TEST 3: write/%d 0..%d bytes %u times\n",
1611 param->vary, param->length, param->iterations);
1612 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1613 if (!urb) {
1614 retval = -ENOMEM;
1615 break;
1616 }
1617 // FIRMWARE: bulk sink (maybe accepts short writes)
1618 retval = simple_io (urb, param->iterations, param->vary,
1619 0, "test3");
1620 simple_free_urb (urb);
1621 break;
1622 case 4:
1623 if (dev->in_pipe == 0 || param->vary == 0)
1624 break;
1625 dev_dbg (&intf->dev,
1626 "TEST 4: read/%d 0..%d bytes %u times\n",
1627 param->vary, param->length, param->iterations);
1628 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1629 if (!urb) {
1630 retval = -ENOMEM;
1631 break;
1632 }
1633 // FIRMWARE: bulk source (maybe generates short writes)
1634 retval = simple_io (urb, param->iterations, param->vary,
1635 0, "test4");
1636 simple_free_urb (urb);
1637 break;
1638
1639 /* Queued bulk I/O tests */
1640 case 5:
1641 if (dev->out_pipe == 0 || param->sglen == 0)
1642 break;
1643 dev_dbg (&intf->dev,
1644 "TEST 5: write %d sglists %d entries of %d bytes\n",
1645 param->iterations,
1646 param->sglen, param->length);
1647 sg = alloc_sglist (param->sglen, param->length, 0);
1648 if (!sg) {
1649 retval = -ENOMEM;
1650 break;
1651 }
1652 // FIRMWARE: bulk sink (maybe accepts short writes)
1653 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1654 &req, sg, param->sglen);
1655 free_sglist (sg, param->sglen);
1656 break;
1657
1658 case 6:
1659 if (dev->in_pipe == 0 || param->sglen == 0)
1660 break;
1661 dev_dbg (&intf->dev,
1662 "TEST 6: read %d sglists %d entries of %d bytes\n",
1663 param->iterations,
1664 param->sglen, param->length);
1665 sg = alloc_sglist (param->sglen, param->length, 0);
1666 if (!sg) {
1667 retval = -ENOMEM;
1668 break;
1669 }
1670 // FIRMWARE: bulk source (maybe generates short writes)
1671 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1672 &req, sg, param->sglen);
1673 free_sglist (sg, param->sglen);
1674 break;
1675 case 7:
1676 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1677 break;
1678 dev_dbg (&intf->dev,
1679 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1680 param->vary, param->iterations,
1681 param->sglen, param->length);
1682 sg = alloc_sglist (param->sglen, param->length, param->vary);
1683 if (!sg) {
1684 retval = -ENOMEM;
1685 break;
1686 }
1687 // FIRMWARE: bulk sink (maybe accepts short writes)
1688 retval = perform_sglist (udev, param->iterations, dev->out_pipe,
1689 &req, sg, param->sglen);
1690 free_sglist (sg, param->sglen);
1691 break;
1692 case 8:
1693 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1694 break;
1695 dev_dbg (&intf->dev,
1696 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1697 param->vary, param->iterations,
1698 param->sglen, param->length);
1699 sg = alloc_sglist (param->sglen, param->length, param->vary);
1700 if (!sg) {
1701 retval = -ENOMEM;
1702 break;
1703 }
1704 // FIRMWARE: bulk source (maybe generates short writes)
1705 retval = perform_sglist (udev, param->iterations, dev->in_pipe,
1706 &req, sg, param->sglen);
1707 free_sglist (sg, param->sglen);
1708 break;
1709
1710 /* non-queued sanity tests for control (chapter 9 subset) */
1711 case 9:
1712 retval = 0;
1713 dev_dbg (&intf->dev,
1714 "TEST 9: ch9 (subset) control tests, %d times\n",
1715 param->iterations);
1716 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1717 retval = ch9_postconfig (dev);
1718 if (retval)
1719 dbg ("ch9 subset failed, iterations left %d", i);
1720 break;
1721
1722 /* queued control messaging */
1723 case 10:
1724 if (param->sglen == 0)
1725 break;
1726 retval = 0;
1727 dev_dbg (&intf->dev,
1728 "TEST 10: queue %d control calls, %d times\n",
1729 param->sglen,
1730 param->iterations);
1731 retval = test_ctrl_queue (dev, param);
1732 break;
1733
1734 /* simple non-queued unlinks (ring with one urb) */
1735 case 11:
1736 if (dev->in_pipe == 0 || !param->length)
1737 break;
1738 retval = 0;
1739 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n",
1740 param->iterations, param->length);
1741 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1742 retval = unlink_simple (dev, dev->in_pipe,
1743 param->length);
1744 if (retval)
1745 dev_dbg (&intf->dev, "unlink reads failed %d, "
1746 "iterations left %d\n", retval, i);
1747 break;
1748 case 12:
1749 if (dev->out_pipe == 0 || !param->length)
1750 break;
1751 retval = 0;
1752 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n",
1753 param->iterations, param->length);
1754 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1755 retval = unlink_simple (dev, dev->out_pipe,
1756 param->length);
1757 if (retval)
1758 dev_dbg (&intf->dev, "unlink writes failed %d, "
1759 "iterations left %d\n", retval, i);
1760 break;
1761
1762 /* ep halt tests */
1763 case 13:
1764 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1765 break;
1766 retval = 0;
1767 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n",
1768 param->iterations);
1769 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1770 retval = halt_simple (dev);
1771
1772 if (retval)
1773 DBG (dev, "halts failed, iterations left %d\n", i);
1774 break;
1775
1776 /* control write tests */
1777 case 14:
1778 if (!dev->info->ctrl_out)
1779 break;
1780 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1781 param->iterations,
1782 realworld ? 1 : 0, param->length,
1783 param->vary);
1784 retval = ctrl_out (dev, param->iterations,
1785 param->length, param->vary);
1786 break;
1787
1788 /* iso write tests */
1789 case 15:
1790 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1791 break;
1792 dev_dbg (&intf->dev,
1793 "TEST 15: write %d iso, %d entries of %d bytes\n",
1794 param->iterations,
1795 param->sglen, param->length);
1796 // FIRMWARE: iso sink
1797 retval = test_iso_queue (dev, param,
1798 dev->out_iso_pipe, dev->iso_out);
1799 break;
1800
1801 /* iso read tests */
1802 case 16:
1803 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1804 break;
1805 dev_dbg (&intf->dev,
1806 "TEST 16: read %d iso, %d entries of %d bytes\n",
1807 param->iterations,
1808 param->sglen, param->length);
1809 // FIRMWARE: iso source
1810 retval = test_iso_queue (dev, param,
1811 dev->in_iso_pipe, dev->iso_in);
1812 break;
1813
1814 // FIXME unlink from queue (ring with N urbs)
1815
1816 // FIXME scatterlist cancel (needs helper thread)
1817
1818 }
1819 do_gettimeofday (&param->duration);
1820 param->duration.tv_sec -= start.tv_sec;
1821 param->duration.tv_usec -= start.tv_usec;
1822 if (param->duration.tv_usec < 0) {
1823 param->duration.tv_usec += 1000 * 1000;
1824 param->duration.tv_sec -= 1;
1825 }
1826 up (&dev->sem);
1827 return retval;
1828 }
1829
1830 /*-------------------------------------------------------------------------*/
1831
1832 static unsigned force_interrupt = 0;
1833 module_param (force_interrupt, uint, 0);
1834 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1835
1836 #ifdef GENERIC
1837 static unsigned short vendor;
1838 module_param(vendor, ushort, 0);
1839 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1840
1841 static unsigned short product;
1842 module_param(product, ushort, 0);
1843 MODULE_PARM_DESC (product, "product code (from vendor)");
1844 #endif
1845
1846 static int
1847 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1848 {
1849 struct usb_device *udev;
1850 struct usbtest_dev *dev;
1851 struct usbtest_info *info;
1852 char *rtest, *wtest;
1853 char *irtest, *iwtest;
1854
1855 udev = interface_to_usbdev (intf);
1856
1857 #ifdef GENERIC
1858 /* specify devices by module parameters? */
1859 if (id->match_flags == 0) {
1860 /* vendor match required, product match optional */
1861 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1862 return -ENODEV;
1863 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1864 return -ENODEV;
1865 dbg ("matched module params, vend=0x%04x prod=0x%04x",
1866 le16_to_cpu(udev->descriptor.idVendor),
1867 le16_to_cpu(udev->descriptor.idProduct));
1868 }
1869 #endif
1870
1871 dev = kmalloc (sizeof *dev, SLAB_KERNEL);
1872 if (!dev)
1873 return -ENOMEM;
1874 memset (dev, 0, sizeof *dev);
1875 info = (struct usbtest_info *) id->driver_info;
1876 dev->info = info;
1877 init_MUTEX (&dev->sem);
1878
1879 dev->intf = intf;
1880
1881 /* cacheline-aligned scratch for i/o */
1882 if ((dev->buf = kmalloc (TBUF_SIZE, SLAB_KERNEL)) == NULL) {
1883 kfree (dev);
1884 return -ENOMEM;
1885 }
1886
1887 /* NOTE this doesn't yet test the handful of difference that are
1888 * visible with high speed interrupts: bigger maxpacket (1K) and
1889 * "high bandwidth" modes (up to 3 packets/uframe).
1890 */
1891 rtest = wtest = "";
1892 irtest = iwtest = "";
1893 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1894 if (info->ep_in) {
1895 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1896 rtest = " intr-in";
1897 }
1898 if (info->ep_out) {
1899 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1900 wtest = " intr-out";
1901 }
1902 } else {
1903 if (info->autoconf) {
1904 int status;
1905
1906 status = get_endpoints (dev, intf);
1907 if (status < 0) {
1908 dbg ("couldn't get endpoints, %d\n", status);
1909 return status;
1910 }
1911 /* may find bulk or ISO pipes */
1912 } else {
1913 if (info->ep_in)
1914 dev->in_pipe = usb_rcvbulkpipe (udev,
1915 info->ep_in);
1916 if (info->ep_out)
1917 dev->out_pipe = usb_sndbulkpipe (udev,
1918 info->ep_out);
1919 }
1920 if (dev->in_pipe)
1921 rtest = " bulk-in";
1922 if (dev->out_pipe)
1923 wtest = " bulk-out";
1924 if (dev->in_iso_pipe)
1925 irtest = " iso-in";
1926 if (dev->out_iso_pipe)
1927 iwtest = " iso-out";
1928 }
1929
1930 usb_set_intfdata (intf, dev);
1931 dev_info (&intf->dev, "%s\n", info->name);
1932 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1933 ({ char *tmp;
1934 switch (udev->speed) {
1935 case USB_SPEED_LOW: tmp = "low"; break;
1936 case USB_SPEED_FULL: tmp = "full"; break;
1937 case USB_SPEED_HIGH: tmp = "high"; break;
1938 default: tmp = "unknown"; break;
1939 }; tmp; }),
1940 info->ctrl_out ? " in/out" : "",
1941 rtest, wtest,
1942 irtest, iwtest,
1943 info->alt >= 0 ? " (+alt)" : "");
1944 return 0;
1945 }
1946
1947 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
1948 {
1949 return 0;
1950 }
1951
1952 static int usbtest_resume (struct usb_interface *intf)
1953 {
1954 return 0;
1955 }
1956
1957
1958 static void usbtest_disconnect (struct usb_interface *intf)
1959 {
1960 struct usbtest_dev *dev = usb_get_intfdata (intf);
1961
1962 down (&dev->sem);
1963
1964 usb_set_intfdata (intf, NULL);
1965 dev_dbg (&intf->dev, "disconnect\n");
1966 kfree (dev);
1967 }
1968
1969 /* Basic testing only needs a device that can source or sink bulk traffic.
1970 * Any device can test control transfers (default with GENERIC binding).
1971 *
1972 * Several entries work with the default EP0 implementation that's built
1973 * into EZ-USB chips. There's a default vendor ID which can be overridden
1974 * by (very) small config EEPROMS, but otherwise all these devices act
1975 * identically until firmware is loaded: only EP0 works. It turns out
1976 * to be easy to make other endpoints work, without modifying that EP0
1977 * behavior. For now, we expect that kind of firmware.
1978 */
1979
1980 /* an21xx or fx versions of ez-usb */
1981 static struct usbtest_info ez1_info = {
1982 .name = "EZ-USB device",
1983 .ep_in = 2,
1984 .ep_out = 2,
1985 .alt = 1,
1986 };
1987
1988 /* fx2 version of ez-usb */
1989 static struct usbtest_info ez2_info = {
1990 .name = "FX2 device",
1991 .ep_in = 6,
1992 .ep_out = 2,
1993 .alt = 1,
1994 };
1995
1996 /* ezusb family device with dedicated usb test firmware,
1997 */
1998 static struct usbtest_info fw_info = {
1999 .name = "usb test device",
2000 .ep_in = 2,
2001 .ep_out = 2,
2002 .alt = 1,
2003 .autoconf = 1, // iso and ctrl_out need autoconf
2004 .ctrl_out = 1,
2005 .iso = 1, // iso_ep's are #8 in/out
2006 };
2007
2008 /* peripheral running Linux and 'zero.c' test firmware, or
2009 * its user-mode cousin. different versions of this use
2010 * different hardware with the same vendor/product codes.
2011 * host side MUST rely on the endpoint descriptors.
2012 */
2013 static struct usbtest_info gz_info = {
2014 .name = "Linux gadget zero",
2015 .autoconf = 1,
2016 .ctrl_out = 1,
2017 .alt = 0,
2018 };
2019
2020 static struct usbtest_info um_info = {
2021 .name = "Linux user mode test driver",
2022 .autoconf = 1,
2023 .alt = -1,
2024 };
2025
2026 static struct usbtest_info um2_info = {
2027 .name = "Linux user mode ISO test driver",
2028 .autoconf = 1,
2029 .iso = 1,
2030 .alt = -1,
2031 };
2032
2033 #ifdef IBOT2
2034 /* this is a nice source of high speed bulk data;
2035 * uses an FX2, with firmware provided in the device
2036 */
2037 static struct usbtest_info ibot2_info = {
2038 .name = "iBOT2 webcam",
2039 .ep_in = 2,
2040 .alt = -1,
2041 };
2042 #endif
2043
2044 #ifdef GENERIC
2045 /* we can use any device to test control traffic */
2046 static struct usbtest_info generic_info = {
2047 .name = "Generic USB device",
2048 .alt = -1,
2049 };
2050 #endif
2051
2052 // FIXME remove this
2053 static struct usbtest_info hact_info = {
2054 .name = "FX2/hact",
2055 //.ep_in = 6,
2056 .ep_out = 2,
2057 .alt = -1,
2058 };
2059
2060
2061 static struct usb_device_id id_table [] = {
2062
2063 { USB_DEVICE (0x0547, 0x1002),
2064 .driver_info = (unsigned long) &hact_info,
2065 },
2066
2067 /*-------------------------------------------------------------*/
2068
2069 /* EZ-USB devices which download firmware to replace (or in our
2070 * case augment) the default device implementation.
2071 */
2072
2073 /* generic EZ-USB FX controller */
2074 { USB_DEVICE (0x0547, 0x2235),
2075 .driver_info = (unsigned long) &ez1_info,
2076 },
2077
2078 /* CY3671 development board with EZ-USB FX */
2079 { USB_DEVICE (0x0547, 0x0080),
2080 .driver_info = (unsigned long) &ez1_info,
2081 },
2082
2083 /* generic EZ-USB FX2 controller (or development board) */
2084 { USB_DEVICE (0x04b4, 0x8613),
2085 .driver_info = (unsigned long) &ez2_info,
2086 },
2087
2088 /* re-enumerated usb test device firmware */
2089 { USB_DEVICE (0xfff0, 0xfff0),
2090 .driver_info = (unsigned long) &fw_info,
2091 },
2092
2093 /* "Gadget Zero" firmware runs under Linux */
2094 { USB_DEVICE (0x0525, 0xa4a0),
2095 .driver_info = (unsigned long) &gz_info,
2096 },
2097
2098 /* so does a user-mode variant */
2099 { USB_DEVICE (0x0525, 0xa4a4),
2100 .driver_info = (unsigned long) &um_info,
2101 },
2102
2103 /* ... and a user-mode variant that talks iso */
2104 { USB_DEVICE (0x0525, 0xa4a3),
2105 .driver_info = (unsigned long) &um2_info,
2106 },
2107
2108 #ifdef KEYSPAN_19Qi
2109 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2110 // this does not coexist with the real Keyspan 19qi driver!
2111 { USB_DEVICE (0x06cd, 0x010b),
2112 .driver_info = (unsigned long) &ez1_info,
2113 },
2114 #endif
2115
2116 /*-------------------------------------------------------------*/
2117
2118 #ifdef IBOT2
2119 /* iBOT2 makes a nice source of high speed bulk-in data */
2120 // this does not coexist with a real iBOT2 driver!
2121 { USB_DEVICE (0x0b62, 0x0059),
2122 .driver_info = (unsigned long) &ibot2_info,
2123 },
2124 #endif
2125
2126 /*-------------------------------------------------------------*/
2127
2128 #ifdef GENERIC
2129 /* module params can specify devices to use for control tests */
2130 { .driver_info = (unsigned long) &generic_info, },
2131 #endif
2132
2133 /*-------------------------------------------------------------*/
2134
2135 { }
2136 };
2137 MODULE_DEVICE_TABLE (usb, id_table);
2138
2139 static struct usb_driver usbtest_driver = {
2140 .owner = THIS_MODULE,
2141 .name = "usbtest",
2142 .id_table = id_table,
2143 .probe = usbtest_probe,
2144 .ioctl = usbtest_ioctl,
2145 .disconnect = usbtest_disconnect,
2146 .suspend = usbtest_suspend,
2147 .resume = usbtest_resume,
2148 };
2149
2150 /*-------------------------------------------------------------------------*/
2151
2152 static int __init usbtest_init (void)
2153 {
2154 #ifdef GENERIC
2155 if (vendor)
2156 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product);
2157 #endif
2158 return usb_register (&usbtest_driver);
2159 }
2160 module_init (usbtest_init);
2161
2162 static void __exit usbtest_exit (void)
2163 {
2164 usb_deregister (&usbtest_driver);
2165 }
2166 module_exit (usbtest_exit);
2167
2168 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2169 MODULE_LICENSE ("GPL");
2170
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree