?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
drm/i915/tv: Preserve reserved DAC bits during mode-setting
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / usb / misc / usbtest.c
blobeef370eb7a54d0ef814ddcaa2310b8837f086467
1 #include <linux/kernel.h>
2 #include <linux/errno.h>
3 #include <linux/init.h>
4 #include <linux/slab.h>
5 #include <linux/mm.h>
6 #include <linux/module.h>
7 #include <linux/moduleparam.h>
8 #include <linux/scatterlist.h>
9 #include <linux/mutex.h>
10
11 #include <linux/usb.h>
12
13
14 /*-------------------------------------------------------------------------*/
15
16 // FIXME make these public somewhere; usbdevfs.h?
17 //
18 struct usbtest_param {
19 // inputs
20 unsigned test_num; /* 0..(TEST_CASES-1) */
21 unsigned iterations;
22 unsigned length;
23 unsigned vary;
24 unsigned sglen;
25
26 // outputs
27 struct timeval duration;
28 };
29 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
30
31 /*-------------------------------------------------------------------------*/
32
33 #define GENERIC /* let probe() bind using module params */
34
35 /* Some devices that can be used for testing will have "real" drivers.
36 * Entries for those need to be enabled here by hand, after disabling
37 * that "real" driver.
38 */
39 //#define IBOT2 /* grab iBOT2 webcams */
40 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
41
42 /*-------------------------------------------------------------------------*/
43
44 struct usbtest_info {
45 const char *name;
46 u8 ep_in; /* bulk/intr source */
47 u8 ep_out; /* bulk/intr sink */
48 unsigned autoconf : 1;
49 unsigned ctrl_out : 1;
50 unsigned iso : 1; /* try iso in/out */
51 int alt;
52 };
53
54 /* this is accessed only through usbfs ioctl calls.
55 * one ioctl to issue a test ... one lock per device.
56 * tests create other threads if they need them.
57 * urbs and buffers are allocated dynamically,
58 * and data generated deterministically.
59 */
60 struct usbtest_dev {
61 struct usb_interface *intf;
62 struct usbtest_info *info;
63 int in_pipe;
64 int out_pipe;
65 int in_iso_pipe;
66 int out_iso_pipe;
67 struct usb_endpoint_descriptor *iso_in, *iso_out;
68 struct mutex lock;
69
70 #define TBUF_SIZE 256
71 u8 *buf;
72 };
73
74 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test)
75 {
76 return interface_to_usbdev (test->intf);
77 }
78
79 /* set up all urbs so they can be used with either bulk or interrupt */
80 #define INTERRUPT_RATE 1 /* msec/transfer */
81
82 #define ERROR(tdev, fmt, args...) \
83 dev_err(&(tdev)->intf->dev , fmt , ## args)
84 #define WARNING(tdev, fmt, args...) \
85 dev_warn(&(tdev)->intf->dev , fmt , ## args)
86
87 /*-------------------------------------------------------------------------*/
88
89 static int
90 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf)
91 {
92 int tmp;
93 struct usb_host_interface *alt;
94 struct usb_host_endpoint *in, *out;
95 struct usb_host_endpoint *iso_in, *iso_out;
96 struct usb_device *udev;
97
98 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
99 unsigned ep;
100
101 in = out = NULL;
102 iso_in = iso_out = NULL;
103 alt = intf->altsetting + tmp;
104
105 /* take the first altsetting with in-bulk + out-bulk;
106 * ignore other endpoints and altsetttings.
107 */
108 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
109 struct usb_host_endpoint *e;
110
111 e = alt->endpoint + ep;
112 switch (e->desc.bmAttributes) {
113 case USB_ENDPOINT_XFER_BULK:
114 break;
115 case USB_ENDPOINT_XFER_ISOC:
116 if (dev->info->iso)
117 goto try_iso;
118 // FALLTHROUGH
119 default:
120 continue;
121 }
122 if (usb_endpoint_dir_in(&e->desc)) {
123 if (!in)
124 in = e;
125 } else {
126 if (!out)
127 out = e;
128 }
129 continue;
130 try_iso:
131 if (usb_endpoint_dir_in(&e->desc)) {
132 if (!iso_in)
133 iso_in = e;
134 } else {
135 if (!iso_out)
136 iso_out = e;
137 }
138 }
139 if ((in && out) || iso_in || iso_out)
140 goto found;
141 }
142 return -EINVAL;
143
144 found:
145 udev = testdev_to_usbdev (dev);
146 if (alt->desc.bAlternateSetting != 0) {
147 tmp = usb_set_interface (udev,
148 alt->desc.bInterfaceNumber,
149 alt->desc.bAlternateSetting);
150 if (tmp < 0)
151 return tmp;
152 }
153
154 if (in) {
155 dev->in_pipe = usb_rcvbulkpipe (udev,
156 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
157 dev->out_pipe = usb_sndbulkpipe (udev,
158 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
159 }
160 if (iso_in) {
161 dev->iso_in = &iso_in->desc;
162 dev->in_iso_pipe = usb_rcvisocpipe (udev,
163 iso_in->desc.bEndpointAddress
164 & USB_ENDPOINT_NUMBER_MASK);
165 }
166
167 if (iso_out) {
168 dev->iso_out = &iso_out->desc;
169 dev->out_iso_pipe = usb_sndisocpipe (udev,
170 iso_out->desc.bEndpointAddress
171 & USB_ENDPOINT_NUMBER_MASK);
172 }
173 return 0;
174 }
175
176 /*-------------------------------------------------------------------------*/
177
178 /* Support for testing basic non-queued I/O streams.
179 *
180 * These just package urbs as requests that can be easily canceled.
181 * Each urb's data buffer is dynamically allocated; callers can fill
182 * them with non-zero test data (or test for it) when appropriate.
183 */
184
185 static void simple_callback (struct urb *urb)
186 {
187 complete(urb->context);
188 }
189
190 static struct urb *simple_alloc_urb (
191 struct usb_device *udev,
192 int pipe,
193 unsigned long bytes
194 )
195 {
196 struct urb *urb;
197
198 urb = usb_alloc_urb (0, GFP_KERNEL);
199 if (!urb)
200 return urb;
201 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL);
202 urb->interval = (udev->speed == USB_SPEED_HIGH)
203 ? (INTERRUPT_RATE << 3)
204 : INTERRUPT_RATE;
205 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
206 if (usb_pipein (pipe))
207 urb->transfer_flags |= URB_SHORT_NOT_OK;
208 urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
209 &urb->transfer_dma);
210 if (!urb->transfer_buffer) {
211 usb_free_urb (urb);
212 urb = NULL;
213 } else
214 memset (urb->transfer_buffer, 0, bytes);
215 return urb;
216 }
217
218 static unsigned pattern = 0;
219 static unsigned mod_pattern;
220 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
221 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
222
223 static inline void simple_fill_buf (struct urb *urb)
224 {
225 unsigned i;
226 u8 *buf = urb->transfer_buffer;
227 unsigned len = urb->transfer_buffer_length;
228
229 switch (pattern) {
230 default:
231 // FALLTHROUGH
232 case 0:
233 memset (buf, 0, len);
234 break;
235 case 1: /* mod63 */
236 for (i = 0; i < len; i++)
237 *buf++ = (u8) (i % 63);
238 break;
239 }
240 }
241
242 static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
243 {
244 unsigned i;
245 u8 expected;
246 u8 *buf = urb->transfer_buffer;
247 unsigned len = urb->actual_length;
248
249 for (i = 0; i < len; i++, buf++) {
250 switch (pattern) {
251 /* all-zeroes has no synchronization issues */
252 case 0:
253 expected = 0;
254 break;
255 /* mod63 stays in sync with short-terminated transfers,
256 * or otherwise when host and gadget agree on how large
257 * each usb transfer request should be. resync is done
258 * with set_interface or set_config.
259 */
260 case 1: /* mod63 */
261 expected = i % 63;
262 break;
263 /* always fail unsupported patterns */
264 default:
265 expected = !*buf;
266 break;
267 }
268 if (*buf == expected)
269 continue;
270 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
271 return -EINVAL;
272 }
273 return 0;
274 }
275
276 static void simple_free_urb (struct urb *urb)
277 {
278 usb_free_coherent(urb->dev, urb->transfer_buffer_length,
279 urb->transfer_buffer, urb->transfer_dma);
280 usb_free_urb (urb);
281 }
282
283 static int simple_io (
284 struct usbtest_dev *tdev,
285 struct urb *urb,
286 int iterations,
287 int vary,
288 int expected,
289 const char *label
290 )
291 {
292 struct usb_device *udev = urb->dev;
293 int max = urb->transfer_buffer_length;
294 struct completion completion;
295 int retval = 0;
296
297 urb->context = &completion;
298 while (retval == 0 && iterations-- > 0) {
299 init_completion (&completion);
300 if (usb_pipeout (urb->pipe))
301 simple_fill_buf (urb);
302 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0)
303 break;
304
305 /* NOTE: no timeouts; can't be broken out of by interrupt */
306 wait_for_completion (&completion);
307 retval = urb->status;
308 urb->dev = udev;
309 if (retval == 0 && usb_pipein (urb->pipe))
310 retval = simple_check_buf(tdev, urb);
311
312 if (vary) {
313 int len = urb->transfer_buffer_length;
314
315 len += vary;
316 len %= max;
317 if (len == 0)
318 len = (vary < max) ? vary : max;
319 urb->transfer_buffer_length = len;
320 }
321
322 /* FIXME if endpoint halted, clear halt (and log) */
323 }
324 urb->transfer_buffer_length = max;
325
326 if (expected != retval)
327 dev_err(&udev->dev,
328 "%s failed, iterations left %d, status %d (not %d)\n",
329 label, iterations, retval, expected);
330 return retval;
331 }
332
333
334 /*-------------------------------------------------------------------------*/
335
336 /* We use scatterlist primitives to test queued I/O.
337 * Yes, this also tests the scatterlist primitives.
338 */
339
340 static void free_sglist (struct scatterlist *sg, int nents)
341 {
342 unsigned i;
343
344 if (!sg)
345 return;
346 for (i = 0; i < nents; i++) {
347 if (!sg_page(&sg[i]))
348 continue;
349 kfree (sg_virt(&sg[i]));
350 }
351 kfree (sg);
352 }
353
354 static struct scatterlist *
355 alloc_sglist (int nents, int max, int vary)
356 {
357 struct scatterlist *sg;
358 unsigned i;
359 unsigned size = max;
360
361 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL);
362 if (!sg)
363 return NULL;
364 sg_init_table(sg, nents);
365
366 for (i = 0; i < nents; i++) {
367 char *buf;
368 unsigned j;
369
370 buf = kzalloc (size, GFP_KERNEL);
371 if (!buf) {
372 free_sglist (sg, i);
373 return NULL;
374 }
375
376 /* kmalloc pages are always physically contiguous! */
377 sg_set_buf(&sg[i], buf, size);
378
379 switch (pattern) {
380 case 0:
381 /* already zeroed */
382 break;
383 case 1:
384 for (j = 0; j < size; j++)
385 *buf++ = (u8) (j % 63);
386 break;
387 }
388
389 if (vary) {
390 size += vary;
391 size %= max;
392 if (size == 0)
393 size = (vary < max) ? vary : max;
394 }
395 }
396
397 return sg;
398 }
399
400 static int perform_sglist (
401 struct usbtest_dev *tdev,
402 unsigned iterations,
403 int pipe,
404 struct usb_sg_request *req,
405 struct scatterlist *sg,
406 int nents
407 )
408 {
409 struct usb_device *udev = testdev_to_usbdev(tdev);
410 int retval = 0;
411
412 while (retval == 0 && iterations-- > 0) {
413 retval = usb_sg_init (req, udev, pipe,
414 (udev->speed == USB_SPEED_HIGH)
415 ? (INTERRUPT_RATE << 3)
416 : INTERRUPT_RATE,
417 sg, nents, 0, GFP_KERNEL);
418
419 if (retval)
420 break;
421 usb_sg_wait (req);
422 retval = req->status;
423
424 /* FIXME check resulting data pattern */
425
426 /* FIXME if endpoint halted, clear halt (and log) */
427 }
428
429 // FIXME for unlink or fault handling tests, don't report
430 // failure if retval is as we expected ...
431
432 if (retval)
433 ERROR(tdev, "perform_sglist failed, "
434 "iterations left %d, status %d\n",
435 iterations, retval);
436 return retval;
437 }
438
439
440 /*-------------------------------------------------------------------------*/
441
442 /* unqueued control message testing
443 *
444 * there's a nice set of device functional requirements in chapter 9 of the
445 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
446 * special test firmware.
447 *
448 * we know the device is configured (or suspended) by the time it's visible
449 * through usbfs. we can't change that, so we won't test enumeration (which
450 * worked 'well enough' to get here, this time), power management (ditto),
451 * or remote wakeup (which needs human interaction).
452 */
453
454 static unsigned realworld = 1;
455 module_param (realworld, uint, 0);
456 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance");
457
458 static int get_altsetting (struct usbtest_dev *dev)
459 {
460 struct usb_interface *iface = dev->intf;
461 struct usb_device *udev = interface_to_usbdev (iface);
462 int retval;
463
464 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
465 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
466 0, iface->altsetting [0].desc.bInterfaceNumber,
467 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
468 switch (retval) {
469 case 1:
470 return dev->buf [0];
471 case 0:
472 retval = -ERANGE;
473 // FALLTHROUGH
474 default:
475 return retval;
476 }
477 }
478
479 static int set_altsetting (struct usbtest_dev *dev, int alternate)
480 {
481 struct usb_interface *iface = dev->intf;
482 struct usb_device *udev;
483
484 if (alternate < 0 || alternate >= 256)
485 return -EINVAL;
486
487 udev = interface_to_usbdev (iface);
488 return usb_set_interface (udev,
489 iface->altsetting [0].desc.bInterfaceNumber,
490 alternate);
491 }
492
493 static int is_good_config(struct usbtest_dev *tdev, int len)
494 {
495 struct usb_config_descriptor *config;
496
497 if (len < sizeof *config)
498 return 0;
499 config = (struct usb_config_descriptor *) tdev->buf;
500
501 switch (config->bDescriptorType) {
502 case USB_DT_CONFIG:
503 case USB_DT_OTHER_SPEED_CONFIG:
504 if (config->bLength != 9) {
505 ERROR(tdev, "bogus config descriptor length\n");
506 return 0;
507 }
508 /* this bit 'must be 1' but often isn't */
509 if (!realworld && !(config->bmAttributes & 0x80)) {
510 ERROR(tdev, "high bit of config attributes not set\n");
511 return 0;
512 }
513 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
514 ERROR(tdev, "reserved config bits set\n");
515 return 0;
516 }
517 break;
518 default:
519 return 0;
520 }
521
522 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
523 return 1;
524 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
525 return 1;
526 ERROR(tdev, "bogus config descriptor read size\n");
527 return 0;
528 }
529
530 /* sanity test for standard requests working with usb_control_mesg() and some
531 * of the utility functions which use it.
532 *
533 * this doesn't test how endpoint halts behave or data toggles get set, since
534 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
535 * halt or toggle). toggle testing is impractical without support from hcds.
536 *
537 * this avoids failing devices linux would normally work with, by not testing
538 * config/altsetting operations for devices that only support their defaults.
539 * such devices rarely support those needless operations.
540 *
541 * NOTE that since this is a sanity test, it's not examining boundary cases
542 * to see if usbcore, hcd, and device all behave right. such testing would
543 * involve varied read sizes and other operation sequences.
544 */
545 static int ch9_postconfig (struct usbtest_dev *dev)
546 {
547 struct usb_interface *iface = dev->intf;
548 struct usb_device *udev = interface_to_usbdev (iface);
549 int i, alt, retval;
550
551 /* [9.2.3] if there's more than one altsetting, we need to be able to
552 * set and get each one. mostly trusts the descriptors from usbcore.
553 */
554 for (i = 0; i < iface->num_altsetting; i++) {
555
556 /* 9.2.3 constrains the range here */
557 alt = iface->altsetting [i].desc.bAlternateSetting;
558 if (alt < 0 || alt >= iface->num_altsetting) {
559 dev_err(&iface->dev,
560 "invalid alt [%d].bAltSetting = %d\n",
561 i, alt);
562 }
563
564 /* [real world] get/set unimplemented if there's only one */
565 if (realworld && iface->num_altsetting == 1)
566 continue;
567
568 /* [9.4.10] set_interface */
569 retval = set_altsetting (dev, alt);
570 if (retval) {
571 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
572 alt, retval);
573 return retval;
574 }
575
576 /* [9.4.4] get_interface always works */
577 retval = get_altsetting (dev);
578 if (retval != alt) {
579 dev_err(&iface->dev, "get alt should be %d, was %d\n",
580 alt, retval);
581 return (retval < 0) ? retval : -EDOM;
582 }
583
584 }
585
586 /* [real world] get_config unimplemented if there's only one */
587 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
588 int expected = udev->actconfig->desc.bConfigurationValue;
589
590 /* [9.4.2] get_configuration always works
591 * ... although some cheap devices (like one TI Hub I've got)
592 * won't return config descriptors except before set_config.
593 */
594 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
595 USB_REQ_GET_CONFIGURATION,
596 USB_DIR_IN | USB_RECIP_DEVICE,
597 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
598 if (retval != 1 || dev->buf [0] != expected) {
599 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
600 retval, dev->buf[0], expected);
601 return (retval < 0) ? retval : -EDOM;
602 }
603 }
604
605 /* there's always [9.4.3] a device descriptor [9.6.1] */
606 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0,
607 dev->buf, sizeof udev->descriptor);
608 if (retval != sizeof udev->descriptor) {
609 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
610 return (retval < 0) ? retval : -EDOM;
611 }
612
613 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
614 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
615 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i,
616 dev->buf, TBUF_SIZE);
617 if (!is_good_config(dev, retval)) {
618 dev_err(&iface->dev,
619 "config [%d] descriptor --> %d\n",
620 i, retval);
621 return (retval < 0) ? retval : -EDOM;
622 }
623
624 // FIXME cross-checking udev->config[i] to make sure usbcore
625 // parsed it right (etc) would be good testing paranoia
626 }
627
628 /* and sometimes [9.2.6.6] speed dependent descriptors */
629 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
630 struct usb_qualifier_descriptor *d = NULL;
631
632 /* device qualifier [9.6.2] */
633 retval = usb_get_descriptor (udev,
634 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
635 sizeof (struct usb_qualifier_descriptor));
636 if (retval == -EPIPE) {
637 if (udev->speed == USB_SPEED_HIGH) {
638 dev_err(&iface->dev,
639 "hs dev qualifier --> %d\n",
640 retval);
641 return (retval < 0) ? retval : -EDOM;
642 }
643 /* usb2.0 but not high-speed capable; fine */
644 } else if (retval != sizeof (struct usb_qualifier_descriptor)) {
645 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
646 return (retval < 0) ? retval : -EDOM;
647 } else
648 d = (struct usb_qualifier_descriptor *) dev->buf;
649
650 /* might not have [9.6.2] any other-speed configs [9.6.4] */
651 if (d) {
652 unsigned max = d->bNumConfigurations;
653 for (i = 0; i < max; i++) {
654 retval = usb_get_descriptor (udev,
655 USB_DT_OTHER_SPEED_CONFIG, i,
656 dev->buf, TBUF_SIZE);
657 if (!is_good_config(dev, retval)) {
658 dev_err(&iface->dev,
659 "other speed config --> %d\n",
660 retval);
661 return (retval < 0) ? retval : -EDOM;
662 }
663 }
664 }
665 }
666 // FIXME fetch strings from at least the device descriptor
667
668 /* [9.4.5] get_status always works */
669 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf);
670 if (retval != 2) {
671 dev_err(&iface->dev, "get dev status --> %d\n", retval);
672 return (retval < 0) ? retval : -EDOM;
673 }
674
675 // FIXME configuration.bmAttributes says if we could try to set/clear
676 // the device's remote wakeup feature ... if we can, test that here
677
678 retval = usb_get_status (udev, USB_RECIP_INTERFACE,
679 iface->altsetting [0].desc.bInterfaceNumber, dev->buf);
680 if (retval != 2) {
681 dev_err(&iface->dev, "get interface status --> %d\n", retval);
682 return (retval < 0) ? retval : -EDOM;
683 }
684 // FIXME get status for each endpoint in the interface
685
686 return 0;
687 }
688
689 /*-------------------------------------------------------------------------*/
690
691 /* use ch9 requests to test whether:
692 * (a) queues work for control, keeping N subtests queued and
693 * active (auto-resubmit) for M loops through the queue.
694 * (b) protocol stalls (control-only) will autorecover.
695 * it's not like bulk/intr; no halt clearing.
696 * (c) short control reads are reported and handled.
697 * (d) queues are always processed in-order
698 */
699
700 struct ctrl_ctx {
701 spinlock_t lock;
702 struct usbtest_dev *dev;
703 struct completion complete;
704 unsigned count;
705 unsigned pending;
706 int status;
707 struct urb **urb;
708 struct usbtest_param *param;
709 int last;
710 };
711
712 #define NUM_SUBCASES 15 /* how many test subcases here? */
713
714 struct subcase {
715 struct usb_ctrlrequest setup;
716 int number;
717 int expected;
718 };
719
720 static void ctrl_complete (struct urb *urb)
721 {
722 struct ctrl_ctx *ctx = urb->context;
723 struct usb_ctrlrequest *reqp;
724 struct subcase *subcase;
725 int status = urb->status;
726
727 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
728 subcase = container_of (reqp, struct subcase, setup);
729
730 spin_lock (&ctx->lock);
731 ctx->count--;
732 ctx->pending--;
733
734 /* queue must transfer and complete in fifo order, unless
735 * usb_unlink_urb() is used to unlink something not at the
736 * physical queue head (not tested).
737 */
738 if (subcase->number > 0) {
739 if ((subcase->number - ctx->last) != 1) {
740 ERROR(ctx->dev,
741 "subcase %d completed out of order, last %d\n",
742 subcase->number, ctx->last);
743 status = -EDOM;
744 ctx->last = subcase->number;
745 goto error;
746 }
747 }
748 ctx->last = subcase->number;
749
750 /* succeed or fault in only one way? */
751 if (status == subcase->expected)
752 status = 0;
753
754 /* async unlink for cleanup? */
755 else if (status != -ECONNRESET) {
756
757 /* some faults are allowed, not required */
758 if (subcase->expected > 0 && (
759 ((status == -subcase->expected /* happened */
760 || status == 0)))) /* didn't */
761 status = 0;
762 /* sometimes more than one fault is allowed */
763 else if (subcase->number == 12 && status == -EPIPE)
764 status = 0;
765 else
766 ERROR(ctx->dev, "subtest %d error, status %d\n",
767 subcase->number, status);
768 }
769
770 /* unexpected status codes mean errors; ideally, in hardware */
771 if (status) {
772 error:
773 if (ctx->status == 0) {
774 int i;
775
776 ctx->status = status;
777 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
778 "%d left, subcase %d, len %d/%d\n",
779 reqp->bRequestType, reqp->bRequest,
780 status, ctx->count, subcase->number,
781 urb->actual_length,
782 urb->transfer_buffer_length);
783
784 /* FIXME this "unlink everything" exit route should
785 * be a separate test case.
786 */
787
788 /* unlink whatever's still pending */
789 for (i = 1; i < ctx->param->sglen; i++) {
790 struct urb *u = ctx->urb [
791 (i + subcase->number)
792 % ctx->param->sglen];
793
794 if (u == urb || !u->dev)
795 continue;
796 spin_unlock(&ctx->lock);
797 status = usb_unlink_urb (u);
798 spin_lock(&ctx->lock);
799 switch (status) {
800 case -EINPROGRESS:
801 case -EBUSY:
802 case -EIDRM:
803 continue;
804 default:
805 ERROR(ctx->dev, "urb unlink --> %d\n",
806 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, GFP_ATOMIC)) != 0) {
816 ERROR(ctx->dev,
817 "can't resubmit ctrl %02x.%02x, err %d\n",
818 reqp->bRequestType, reqp->bRequest, status);
819 urb->dev = NULL;
820 } else
821 ctx->pending++;
822 } else
823 urb->dev = NULL;
824
825 /* signal completion when nothing's queued */
826 if (ctx->pending == 0)
827 complete (&ctx->complete);
828 spin_unlock (&ctx->lock);
829 }
830
831 static int
832 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param)
833 {
834 struct usb_device *udev = testdev_to_usbdev (dev);
835 struct urb **urb;
836 struct ctrl_ctx context;
837 int i;
838
839 spin_lock_init (&context.lock);
840 context.dev = dev;
841 init_completion (&context.complete);
842 context.count = param->sglen * param->iterations;
843 context.pending = 0;
844 context.status = -ENOMEM;
845 context.param = param;
846 context.last = -1;
847
848 /* allocate and init the urbs we'll queue.
849 * as with bulk/intr sglists, sglen is the queue depth; it also
850 * controls which subtests run (more tests than sglen) or rerun.
851 */
852 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
853 if (!urb)
854 return -ENOMEM;
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
862 /* sign of this variable means:
863 * -: tested code must return this (negative) error code
864 * +: tested code may return this (negative too) error code
865 */
866 int expected = 0;
867
868 /* requests here are mostly expected to succeed on any
869 * device, but some are chosen to trigger protocol stalls
870 * or short reads.
871 */
872 memset (&req, 0, sizeof req);
873 req.bRequest = USB_REQ_GET_DESCRIPTOR;
874 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
875
876 switch (i % NUM_SUBCASES) {
877 case 0: // get device descriptor
878 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8);
879 len = sizeof (struct usb_device_descriptor);
880 break;
881 case 1: // get first config descriptor (only)
882 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
883 len = sizeof (struct usb_config_descriptor);
884 break;
885 case 2: // get altsetting (OFTEN STALLS)
886 req.bRequest = USB_REQ_GET_INTERFACE;
887 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
888 // index = 0 means first interface
889 len = 1;
890 expected = EPIPE;
891 break;
892 case 3: // get interface status
893 req.bRequest = USB_REQ_GET_STATUS;
894 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
895 // interface 0
896 len = 2;
897 break;
898 case 4: // get device status
899 req.bRequest = USB_REQ_GET_STATUS;
900 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
901 len = 2;
902 break;
903 case 5: // get device qualifier (MAY STALL)
904 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
905 len = sizeof (struct usb_qualifier_descriptor);
906 if (udev->speed != USB_SPEED_HIGH)
907 expected = EPIPE;
908 break;
909 case 6: // get first config descriptor, plus interface
910 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
911 len = sizeof (struct usb_config_descriptor);
912 len += sizeof (struct usb_interface_descriptor);
913 break;
914 case 7: // get interface descriptor (ALWAYS STALLS)
915 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
916 // interface == 0
917 len = sizeof (struct usb_interface_descriptor);
918 expected = -EPIPE;
919 break;
920 // NOTE: two consecutive stalls in the queue here.
921 // that tests fault recovery a bit more aggressively.
922 case 8: // clear endpoint halt (MAY STALL)
923 req.bRequest = USB_REQ_CLEAR_FEATURE;
924 req.bRequestType = USB_RECIP_ENDPOINT;
925 // wValue 0 == ep halt
926 // wIndex 0 == ep0 (shouldn't halt!)
927 len = 0;
928 pipe = usb_sndctrlpipe (udev, 0);
929 expected = EPIPE;
930 break;
931 case 9: // get endpoint status
932 req.bRequest = USB_REQ_GET_STATUS;
933 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
934 // endpoint 0
935 len = 2;
936 break;
937 case 10: // trigger short read (EREMOTEIO)
938 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
939 len = 1024;
940 expected = -EREMOTEIO;
941 break;
942 // NOTE: two consecutive _different_ faults in the queue.
943 case 11: // get endpoint descriptor (ALWAYS STALLS)
944 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8);
945 // endpoint == 0
946 len = sizeof (struct usb_interface_descriptor);
947 expected = EPIPE;
948 break;
949 // NOTE: sometimes even a third fault in the queue!
950 case 12: // get string 0 descriptor (MAY STALL)
951 req.wValue = cpu_to_le16 (USB_DT_STRING << 8);
952 // string == 0, for language IDs
953 len = sizeof (struct usb_interface_descriptor);
954 // may succeed when > 4 languages
955 expected = EREMOTEIO; // or EPIPE, if no strings
956 break;
957 case 13: // short read, resembling case 10
958 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0);
959 // last data packet "should" be DATA1, not DATA0
960 len = 1024 - udev->descriptor.bMaxPacketSize0;
961 expected = -EREMOTEIO;
962 break;
963 case 14: // short read; try to fill the last packet
964 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0);
965 /* device descriptor size == 18 bytes */
966 len = udev->descriptor.bMaxPacketSize0;
967 switch (len) {
968 case 8: len = 24; break;
969 case 16: len = 32; break;
970 }
971 expected = -EREMOTEIO;
972 break;
973 default:
974 ERROR(dev, "bogus number of ctrl queue testcases!\n");
975 context.status = -EINVAL;
976 goto cleanup;
977 }
978 req.wLength = cpu_to_le16 (len);
979 urb [i] = u = simple_alloc_urb (udev, pipe, len);
980 if (!u)
981 goto cleanup;
982
983 reqp = kmalloc(sizeof *reqp, GFP_KERNEL);
984 if (!reqp)
985 goto cleanup;
986 reqp->setup = req;
987 reqp->number = i % NUM_SUBCASES;
988 reqp->expected = expected;
989 u->setup_packet = (char *) &reqp->setup;
990
991 u->context = &context;
992 u->complete = ctrl_complete;
993 }
994
995 /* queue the urbs */
996 context.urb = urb;
997 spin_lock_irq (&context.lock);
998 for (i = 0; i < param->sglen; i++) {
999 context.status = usb_submit_urb (urb [i], GFP_ATOMIC);
1000 if (context.status != 0) {
1001 ERROR(dev, "can't submit urb[%d], status %d\n",
1002 i, context.status);
1003 context.count = context.pending;
1004 break;
1005 }
1006 context.pending++;
1007 }
1008 spin_unlock_irq (&context.lock);
1009
1010 /* FIXME set timer and time out; provide a disconnect hook */
1011
1012 /* wait for the last one to complete */
1013 if (context.pending > 0)
1014 wait_for_completion (&context.complete);
1015
1016 cleanup:
1017 for (i = 0; i < param->sglen; i++) {
1018 if (!urb [i])
1019 continue;
1020 urb [i]->dev = udev;
1021 kfree(urb[i]->setup_packet);
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)
1033 {
1034 int status = urb->status;
1035
1036 // we "know" -EPIPE (stall) never happens
1037 if (!status)
1038 status = usb_submit_urb (urb, GFP_ATOMIC);
1039 if (status) {
1040 urb->status = status;
1041 complete(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, GFP_KERNEL)) != 0) {
1065 dev_err(&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 while (!completion_done(&completion)) {
1075 retval = usb_unlink_urb(urb);
1076
1077 switch (retval) {
1078 case -EBUSY:
1079 case -EIDRM:
1080 /* we can't unlink urbs while they're completing
1081 * or if they've completed, and we haven't
1082 * resubmitted. "normal" drivers would prevent
1083 * resubmission, but since we're testing unlink
1084 * paths, we can't.
1085 */
1086 ERROR(dev, "unlink retry\n");
1087 continue;
1088 case 0:
1089 case -EINPROGRESS:
1090 break;
1091
1092 default:
1093 dev_err(&dev->intf->dev,
1094 "unlink fail %d\n", retval);
1095 return retval;
1096 }
1097
1098 break;
1099 }
1100 } else
1101 usb_kill_urb (urb);
1102
1103 wait_for_completion (&completion);
1104 retval = urb->status;
1105 simple_free_urb (urb);
1106
1107 if (async)
1108 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1109 else
1110 return (retval == -ENOENT || retval == -EPERM) ?
1111 0 : retval - 2000;
1112 }
1113
1114 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len)
1115 {
1116 int retval = 0;
1117
1118 /* test sync and async paths */
1119 retval = unlink1 (dev, pipe, len, 1);
1120 if (!retval)
1121 retval = unlink1 (dev, pipe, len, 0);
1122 return retval;
1123 }
1124
1125 /*-------------------------------------------------------------------------*/
1126
1127 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1128 {
1129 int retval;
1130 u16 status;
1131
1132 /* shouldn't look or act halted */
1133 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1134 if (retval < 0) {
1135 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1136 ep, retval);
1137 return retval;
1138 }
1139 if (status != 0) {
1140 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1141 return -EINVAL;
1142 }
1143 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1144 if (retval != 0)
1145 return -EINVAL;
1146 return 0;
1147 }
1148
1149 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1150 {
1151 int retval;
1152 u16 status;
1153
1154 /* should look and act halted */
1155 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1156 if (retval < 0) {
1157 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1158 ep, retval);
1159 return retval;
1160 }
1161 le16_to_cpus(&status);
1162 if (status != 1) {
1163 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1164 return -EINVAL;
1165 }
1166 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1167 if (retval != -EPIPE)
1168 return -EINVAL;
1169 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1170 if (retval != -EPIPE)
1171 return -EINVAL;
1172 return 0;
1173 }
1174
1175 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1176 {
1177 int retval;
1178
1179 /* shouldn't look or act halted now */
1180 retval = verify_not_halted(tdev, ep, urb);
1181 if (retval < 0)
1182 return retval;
1183
1184 /* set halt (protocol test only), verify it worked */
1185 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0),
1186 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1187 USB_ENDPOINT_HALT, ep,
1188 NULL, 0, USB_CTRL_SET_TIMEOUT);
1189 if (retval < 0) {
1190 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1191 return retval;
1192 }
1193 retval = verify_halted(tdev, ep, urb);
1194 if (retval < 0)
1195 return retval;
1196
1197 /* clear halt (tests API + protocol), verify it worked */
1198 retval = usb_clear_halt (urb->dev, urb->pipe);
1199 if (retval < 0) {
1200 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1201 return retval;
1202 }
1203 retval = verify_not_halted(tdev, ep, urb);
1204 if (retval < 0)
1205 return retval;
1206
1207 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1208
1209 return 0;
1210 }
1211
1212 static int halt_simple (struct usbtest_dev *dev)
1213 {
1214 int ep;
1215 int retval = 0;
1216 struct urb *urb;
1217
1218 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512);
1219 if (urb == NULL)
1220 return -ENOMEM;
1221
1222 if (dev->in_pipe) {
1223 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN;
1224 urb->pipe = dev->in_pipe;
1225 retval = test_halt(dev, ep, urb);
1226 if (retval < 0)
1227 goto done;
1228 }
1229
1230 if (dev->out_pipe) {
1231 ep = usb_pipeendpoint (dev->out_pipe);
1232 urb->pipe = dev->out_pipe;
1233 retval = test_halt(dev, ep, urb);
1234 }
1235 done:
1236 simple_free_urb (urb);
1237 return retval;
1238 }
1239
1240 /*-------------------------------------------------------------------------*/
1241
1242 /* Control OUT tests use the vendor control requests from Intel's
1243 * USB 2.0 compliance test device: write a buffer, read it back.
1244 *
1245 * Intel's spec only _requires_ that it work for one packet, which
1246 * is pretty weak. Some HCDs place limits here; most devices will
1247 * need to be able to handle more than one OUT data packet. We'll
1248 * try whatever we're told to try.
1249 */
1250 static int ctrl_out (struct usbtest_dev *dev,
1251 unsigned count, unsigned length, unsigned vary)
1252 {
1253 unsigned i, j, len;
1254 int retval;
1255 u8 *buf;
1256 char *what = "?";
1257 struct usb_device *udev;
1258
1259 if (length < 1 || length > 0xffff || vary >= length)
1260 return -EINVAL;
1261
1262 buf = kmalloc(length, GFP_KERNEL);
1263 if (!buf)
1264 return -ENOMEM;
1265
1266 udev = testdev_to_usbdev (dev);
1267 len = length;
1268 retval = 0;
1269
1270 /* NOTE: hardware might well act differently if we pushed it
1271 * with lots back-to-back queued requests.
1272 */
1273 for (i = 0; i < count; i++) {
1274 /* write patterned data */
1275 for (j = 0; j < len; j++)
1276 buf [j] = i + j;
1277 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0),
1278 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1279 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1280 if (retval != len) {
1281 what = "write";
1282 if (retval >= 0) {
1283 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1284 retval, len);
1285 retval = -EBADMSG;
1286 }
1287 break;
1288 }
1289
1290 /* read it back -- assuming nothing intervened!! */
1291 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0),
1292 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1293 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1294 if (retval != len) {
1295 what = "read";
1296 if (retval >= 0) {
1297 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1298 retval, len);
1299 retval = -EBADMSG;
1300 }
1301 break;
1302 }
1303
1304 /* fail if we can't verify */
1305 for (j = 0; j < len; j++) {
1306 if (buf [j] != (u8) (i + j)) {
1307 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1308 j, buf [j], (u8) i + j);
1309 retval = -EBADMSG;
1310 break;
1311 }
1312 }
1313 if (retval < 0) {
1314 what = "verify";
1315 break;
1316 }
1317
1318 len += vary;
1319
1320 /* [real world] the "zero bytes IN" case isn't really used.
1321 * hardware can easily trip up in this weird case, since its
1322 * status stage is IN, not OUT like other ep0in transfers.
1323 */
1324 if (len > length)
1325 len = realworld ? 1 : 0;
1326 }
1327
1328 if (retval < 0)
1329 ERROR (dev, "ctrl_out %s failed, code %d, count %d\n",
1330 what, retval, i);
1331
1332 kfree (buf);
1333 return retval;
1334 }
1335
1336 /*-------------------------------------------------------------------------*/
1337
1338 /* ISO tests ... mimics common usage
1339 * - buffer length is split into N packets (mostly maxpacket sized)
1340 * - multi-buffers according to sglen
1341 */
1342
1343 struct iso_context {
1344 unsigned count;
1345 unsigned pending;
1346 spinlock_t lock;
1347 struct completion done;
1348 int submit_error;
1349 unsigned long errors;
1350 unsigned long packet_count;
1351 struct usbtest_dev *dev;
1352 };
1353
1354 static void iso_callback (struct urb *urb)
1355 {
1356 struct iso_context *ctx = urb->context;
1357
1358 spin_lock(&ctx->lock);
1359 ctx->count--;
1360
1361 ctx->packet_count += urb->number_of_packets;
1362 if (urb->error_count > 0)
1363 ctx->errors += urb->error_count;
1364 else if (urb->status != 0)
1365 ctx->errors += urb->number_of_packets;
1366
1367 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1368 && !ctx->submit_error) {
1369 int status = usb_submit_urb (urb, GFP_ATOMIC);
1370 switch (status) {
1371 case 0:
1372 goto done;
1373 default:
1374 dev_err(&ctx->dev->intf->dev,
1375 "iso resubmit err %d\n",
1376 status);
1377 /* FALLTHROUGH */
1378 case -ENODEV: /* disconnected */
1379 case -ESHUTDOWN: /* endpoint disabled */
1380 ctx->submit_error = 1;
1381 break;
1382 }
1383 }
1384
1385 ctx->pending--;
1386 if (ctx->pending == 0) {
1387 if (ctx->errors)
1388 dev_err(&ctx->dev->intf->dev,
1389 "iso test, %lu errors out of %lu\n",
1390 ctx->errors, ctx->packet_count);
1391 complete (&ctx->done);
1392 }
1393 done:
1394 spin_unlock(&ctx->lock);
1395 }
1396
1397 static struct urb *iso_alloc_urb (
1398 struct usb_device *udev,
1399 int pipe,
1400 struct usb_endpoint_descriptor *desc,
1401 long bytes
1402 )
1403 {
1404 struct urb *urb;
1405 unsigned i, maxp, packets;
1406
1407 if (bytes < 0 || !desc)
1408 return NULL;
1409 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize);
1410 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11));
1411 packets = DIV_ROUND_UP(bytes, maxp);
1412
1413 urb = usb_alloc_urb (packets, GFP_KERNEL);
1414 if (!urb)
1415 return urb;
1416 urb->dev = udev;
1417 urb->pipe = pipe;
1418
1419 urb->number_of_packets = packets;
1420 urb->transfer_buffer_length = bytes;
1421 urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
1422 &urb->transfer_dma);
1423 if (!urb->transfer_buffer) {
1424 usb_free_urb (urb);
1425 return NULL;
1426 }
1427 memset (urb->transfer_buffer, 0, bytes);
1428 for (i = 0; i < packets; i++) {
1429 /* here, only the last packet will be short */
1430 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp);
1431 bytes -= urb->iso_frame_desc[i].length;
1432
1433 urb->iso_frame_desc[i].offset = maxp * i;
1434 }
1435
1436 urb->complete = iso_callback;
1437 // urb->context = SET BY CALLER
1438 urb->interval = 1 << (desc->bInterval - 1);
1439 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1440 return urb;
1441 }
1442
1443 static int
1444 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param,
1445 int pipe, struct usb_endpoint_descriptor *desc)
1446 {
1447 struct iso_context context;
1448 struct usb_device *udev;
1449 unsigned i;
1450 unsigned long packets = 0;
1451 int status = 0;
1452 struct urb *urbs[10]; /* FIXME no limit */
1453
1454 if (param->sglen > 10)
1455 return -EDOM;
1456
1457 memset(&context, 0, sizeof context);
1458 context.count = param->iterations * param->sglen;
1459 context.dev = dev;
1460 init_completion (&context.done);
1461 spin_lock_init (&context.lock);
1462
1463 memset (urbs, 0, sizeof urbs);
1464 udev = testdev_to_usbdev (dev);
1465 dev_info(&dev->intf->dev,
1466 "... iso period %d %sframes, wMaxPacket %04x\n",
1467 1 << (desc->bInterval - 1),
1468 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1469 le16_to_cpu(desc->wMaxPacketSize));
1470
1471 for (i = 0; i < param->sglen; i++) {
1472 urbs [i] = iso_alloc_urb (udev, pipe, desc,
1473 param->length);
1474 if (!urbs [i]) {
1475 status = -ENOMEM;
1476 goto fail;
1477 }
1478 packets += urbs[i]->number_of_packets;
1479 urbs [i]->context = &context;
1480 }
1481 packets *= param->iterations;
1482 dev_info(&dev->intf->dev,
1483 "... total %lu msec (%lu packets)\n",
1484 (packets * (1 << (desc->bInterval - 1)))
1485 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1486 packets);
1487
1488 spin_lock_irq (&context.lock);
1489 for (i = 0; i < param->sglen; i++) {
1490 ++context.pending;
1491 status = usb_submit_urb (urbs [i], GFP_ATOMIC);
1492 if (status < 0) {
1493 ERROR (dev, "submit iso[%d], error %d\n", i, status);
1494 if (i == 0) {
1495 spin_unlock_irq (&context.lock);
1496 goto fail;
1497 }
1498
1499 simple_free_urb (urbs [i]);
1500 urbs[i] = NULL;
1501 context.pending--;
1502 context.submit_error = 1;
1503 break;
1504 }
1505 }
1506 spin_unlock_irq (&context.lock);
1507
1508 wait_for_completion (&context.done);
1509
1510 for (i = 0; i < param->sglen; i++) {
1511 if (urbs[i])
1512 simple_free_urb(urbs[i]);
1513 }
1514 /*
1515 * Isochronous transfers are expected to fail sometimes. As an
1516 * arbitrary limit, we will report an error if any submissions
1517 * fail or if the transfer failure rate is > 10%.
1518 */
1519 if (status != 0)
1520 ;
1521 else if (context.submit_error)
1522 status = -EACCES;
1523 else if (context.errors > context.packet_count / 10)
1524 status = -EIO;
1525 return status;
1526
1527 fail:
1528 for (i = 0; i < param->sglen; i++) {
1529 if (urbs [i])
1530 simple_free_urb (urbs [i]);
1531 }
1532 return status;
1533 }
1534
1535 /*-------------------------------------------------------------------------*/
1536
1537 /* We only have this one interface to user space, through usbfs.
1538 * User mode code can scan usbfs to find N different devices (maybe on
1539 * different busses) to use when testing, and allocate one thread per
1540 * test. So discovery is simplified, and we have no device naming issues.
1541 *
1542 * Don't use these only as stress/load tests. Use them along with with
1543 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
1544 * video capture, and so on. Run different tests at different times, in
1545 * different sequences. Nothing here should interact with other devices,
1546 * except indirectly by consuming USB bandwidth and CPU resources for test
1547 * threads and request completion. But the only way to know that for sure
1548 * is to test when HC queues are in use by many devices.
1549 *
1550 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
1551 * it locks out usbcore in certain code paths. Notably, if you disconnect
1552 * the device-under-test, khubd will wait block forever waiting for the
1553 * ioctl to complete ... so that usb_disconnect() can abort the pending
1554 * urbs and then call usbtest_disconnect(). To abort a test, you're best
1555 * off just killing the userspace task and waiting for it to exit.
1556 */
1557
1558 /* No BKL needed */
1559 static int
1560 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf)
1561 {
1562 struct usbtest_dev *dev = usb_get_intfdata (intf);
1563 struct usb_device *udev = testdev_to_usbdev (dev);
1564 struct usbtest_param *param = buf;
1565 int retval = -EOPNOTSUPP;
1566 struct urb *urb;
1567 struct scatterlist *sg;
1568 struct usb_sg_request req;
1569 struct timeval start;
1570 unsigned i;
1571
1572 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is.
1573
1574 pattern = mod_pattern;
1575
1576 if (code != USBTEST_REQUEST)
1577 return -EOPNOTSUPP;
1578
1579 if (param->iterations <= 0)
1580 return -EINVAL;
1581
1582 if (mutex_lock_interruptible(&dev->lock))
1583 return -ERESTARTSYS;
1584
1585 /* FIXME: What if a system sleep starts while a test is running? */
1586
1587 /* some devices, like ez-usb default devices, need a non-default
1588 * altsetting to have any active endpoints. some tests change
1589 * altsettings; force a default so most tests don't need to check.
1590 */
1591 if (dev->info->alt >= 0) {
1592 int res;
1593
1594 if (intf->altsetting->desc.bInterfaceNumber) {
1595 mutex_unlock(&dev->lock);
1596 return -ENODEV;
1597 }
1598 res = set_altsetting (dev, dev->info->alt);
1599 if (res) {
1600 dev_err (&intf->dev,
1601 "set altsetting to %d failed, %d\n",
1602 dev->info->alt, res);
1603 mutex_unlock(&dev->lock);
1604 return res;
1605 }
1606 }
1607
1608 /*
1609 * Just a bunch of test cases that every HCD is expected to handle.
1610 *
1611 * Some may need specific firmware, though it'd be good to have
1612 * one firmware image to handle all the test cases.
1613 *
1614 * FIXME add more tests! cancel requests, verify the data, control
1615 * queueing, concurrent read+write threads, and so on.
1616 */
1617 do_gettimeofday (&start);
1618 switch (param->test_num) {
1619
1620 case 0:
1621 dev_info(&intf->dev, "TEST 0: NOP\n");
1622 retval = 0;
1623 break;
1624
1625 /* Simple non-queued bulk I/O tests */
1626 case 1:
1627 if (dev->out_pipe == 0)
1628 break;
1629 dev_info(&intf->dev,
1630 "TEST 1: write %d bytes %u times\n",
1631 param->length, param->iterations);
1632 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1633 if (!urb) {
1634 retval = -ENOMEM;
1635 break;
1636 }
1637 // FIRMWARE: bulk sink (maybe accepts short writes)
1638 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
1639 simple_free_urb (urb);
1640 break;
1641 case 2:
1642 if (dev->in_pipe == 0)
1643 break;
1644 dev_info(&intf->dev,
1645 "TEST 2: read %d bytes %u times\n",
1646 param->length, param->iterations);
1647 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1648 if (!urb) {
1649 retval = -ENOMEM;
1650 break;
1651 }
1652 // FIRMWARE: bulk source (maybe generates short writes)
1653 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
1654 simple_free_urb (urb);
1655 break;
1656 case 3:
1657 if (dev->out_pipe == 0 || param->vary == 0)
1658 break;
1659 dev_info(&intf->dev,
1660 "TEST 3: write/%d 0..%d bytes %u times\n",
1661 param->vary, param->length, param->iterations);
1662 urb = simple_alloc_urb (udev, dev->out_pipe, param->length);
1663 if (!urb) {
1664 retval = -ENOMEM;
1665 break;
1666 }
1667 // FIRMWARE: bulk sink (maybe accepts short writes)
1668 retval = simple_io(dev, urb, param->iterations, param->vary,
1669 0, "test3");
1670 simple_free_urb (urb);
1671 break;
1672 case 4:
1673 if (dev->in_pipe == 0 || param->vary == 0)
1674 break;
1675 dev_info(&intf->dev,
1676 "TEST 4: read/%d 0..%d bytes %u times\n",
1677 param->vary, param->length, param->iterations);
1678 urb = simple_alloc_urb (udev, dev->in_pipe, param->length);
1679 if (!urb) {
1680 retval = -ENOMEM;
1681 break;
1682 }
1683 // FIRMWARE: bulk source (maybe generates short writes)
1684 retval = simple_io(dev, urb, param->iterations, param->vary,
1685 0, "test4");
1686 simple_free_urb (urb);
1687 break;
1688
1689 /* Queued bulk I/O tests */
1690 case 5:
1691 if (dev->out_pipe == 0 || param->sglen == 0)
1692 break;
1693 dev_info(&intf->dev,
1694 "TEST 5: write %d sglists %d entries of %d bytes\n",
1695 param->iterations,
1696 param->sglen, param->length);
1697 sg = alloc_sglist (param->sglen, param->length, 0);
1698 if (!sg) {
1699 retval = -ENOMEM;
1700 break;
1701 }
1702 // FIRMWARE: bulk sink (maybe accepts short writes)
1703 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1704 &req, sg, param->sglen);
1705 free_sglist (sg, param->sglen);
1706 break;
1707
1708 case 6:
1709 if (dev->in_pipe == 0 || param->sglen == 0)
1710 break;
1711 dev_info(&intf->dev,
1712 "TEST 6: read %d sglists %d entries of %d bytes\n",
1713 param->iterations,
1714 param->sglen, param->length);
1715 sg = alloc_sglist (param->sglen, param->length, 0);
1716 if (!sg) {
1717 retval = -ENOMEM;
1718 break;
1719 }
1720 // FIRMWARE: bulk source (maybe generates short writes)
1721 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1722 &req, sg, param->sglen);
1723 free_sglist (sg, param->sglen);
1724 break;
1725 case 7:
1726 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
1727 break;
1728 dev_info(&intf->dev,
1729 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
1730 param->vary, param->iterations,
1731 param->sglen, param->length);
1732 sg = alloc_sglist (param->sglen, param->length, param->vary);
1733 if (!sg) {
1734 retval = -ENOMEM;
1735 break;
1736 }
1737 // FIRMWARE: bulk sink (maybe accepts short writes)
1738 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
1739 &req, sg, param->sglen);
1740 free_sglist (sg, param->sglen);
1741 break;
1742 case 8:
1743 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
1744 break;
1745 dev_info(&intf->dev,
1746 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
1747 param->vary, param->iterations,
1748 param->sglen, param->length);
1749 sg = alloc_sglist (param->sglen, param->length, param->vary);
1750 if (!sg) {
1751 retval = -ENOMEM;
1752 break;
1753 }
1754 // FIRMWARE: bulk source (maybe generates short writes)
1755 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
1756 &req, sg, param->sglen);
1757 free_sglist (sg, param->sglen);
1758 break;
1759
1760 /* non-queued sanity tests for control (chapter 9 subset) */
1761 case 9:
1762 retval = 0;
1763 dev_info(&intf->dev,
1764 "TEST 9: ch9 (subset) control tests, %d times\n",
1765 param->iterations);
1766 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1767 retval = ch9_postconfig (dev);
1768 if (retval)
1769 dev_err(&intf->dev, "ch9 subset failed, "
1770 "iterations left %d\n", i);
1771 break;
1772
1773 /* queued control messaging */
1774 case 10:
1775 if (param->sglen == 0)
1776 break;
1777 retval = 0;
1778 dev_info(&intf->dev,
1779 "TEST 10: queue %d control calls, %d times\n",
1780 param->sglen,
1781 param->iterations);
1782 retval = test_ctrl_queue (dev, param);
1783 break;
1784
1785 /* simple non-queued unlinks (ring with one urb) */
1786 case 11:
1787 if (dev->in_pipe == 0 || !param->length)
1788 break;
1789 retval = 0;
1790 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
1791 param->iterations, param->length);
1792 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1793 retval = unlink_simple (dev, dev->in_pipe,
1794 param->length);
1795 if (retval)
1796 dev_err(&intf->dev, "unlink reads failed %d, "
1797 "iterations left %d\n", retval, i);
1798 break;
1799 case 12:
1800 if (dev->out_pipe == 0 || !param->length)
1801 break;
1802 retval = 0;
1803 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
1804 param->iterations, param->length);
1805 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1806 retval = unlink_simple (dev, dev->out_pipe,
1807 param->length);
1808 if (retval)
1809 dev_err(&intf->dev, "unlink writes failed %d, "
1810 "iterations left %d\n", retval, i);
1811 break;
1812
1813 /* ep halt tests */
1814 case 13:
1815 if (dev->out_pipe == 0 && dev->in_pipe == 0)
1816 break;
1817 retval = 0;
1818 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
1819 param->iterations);
1820 for (i = param->iterations; retval == 0 && i--; /* NOP */)
1821 retval = halt_simple (dev);
1822
1823 if (retval)
1824 ERROR(dev, "halts failed, iterations left %d\n", i);
1825 break;
1826
1827 /* control write tests */
1828 case 14:
1829 if (!dev->info->ctrl_out)
1830 break;
1831 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
1832 param->iterations,
1833 realworld ? 1 : 0, param->length,
1834 param->vary);
1835 retval = ctrl_out(dev, param->iterations,
1836 param->length, param->vary);
1837 break;
1838
1839 /* iso write tests */
1840 case 15:
1841 if (dev->out_iso_pipe == 0 || param->sglen == 0)
1842 break;
1843 dev_info(&intf->dev,
1844 "TEST 15: write %d iso, %d entries of %d bytes\n",
1845 param->iterations,
1846 param->sglen, param->length);
1847 // FIRMWARE: iso sink
1848 retval = test_iso_queue (dev, param,
1849 dev->out_iso_pipe, dev->iso_out);
1850 break;
1851
1852 /* iso read tests */
1853 case 16:
1854 if (dev->in_iso_pipe == 0 || param->sglen == 0)
1855 break;
1856 dev_info(&intf->dev,
1857 "TEST 16: read %d iso, %d entries of %d bytes\n",
1858 param->iterations,
1859 param->sglen, param->length);
1860 // FIRMWARE: iso source
1861 retval = test_iso_queue (dev, param,
1862 dev->in_iso_pipe, dev->iso_in);
1863 break;
1864
1865 // FIXME unlink from queue (ring with N urbs)
1866
1867 // FIXME scatterlist cancel (needs helper thread)
1868
1869 }
1870 do_gettimeofday (&param->duration);
1871 param->duration.tv_sec -= start.tv_sec;
1872 param->duration.tv_usec -= start.tv_usec;
1873 if (param->duration.tv_usec < 0) {
1874 param->duration.tv_usec += 1000 * 1000;
1875 param->duration.tv_sec -= 1;
1876 }
1877 mutex_unlock(&dev->lock);
1878 return retval;
1879 }
1880
1881 /*-------------------------------------------------------------------------*/
1882
1883 static unsigned force_interrupt = 0;
1884 module_param (force_interrupt, uint, 0);
1885 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt");
1886
1887 #ifdef GENERIC
1888 static unsigned short vendor;
1889 module_param(vendor, ushort, 0);
1890 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)");
1891
1892 static unsigned short product;
1893 module_param(product, ushort, 0);
1894 MODULE_PARM_DESC (product, "product code (from vendor)");
1895 #endif
1896
1897 static int
1898 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id)
1899 {
1900 struct usb_device *udev;
1901 struct usbtest_dev *dev;
1902 struct usbtest_info *info;
1903 char *rtest, *wtest;
1904 char *irtest, *iwtest;
1905
1906 udev = interface_to_usbdev (intf);
1907
1908 #ifdef GENERIC
1909 /* specify devices by module parameters? */
1910 if (id->match_flags == 0) {
1911 /* vendor match required, product match optional */
1912 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
1913 return -ENODEV;
1914 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
1915 return -ENODEV;
1916 dev_info(&intf->dev, "matched module params, "
1917 "vend=0x%04x prod=0x%04x\n",
1918 le16_to_cpu(udev->descriptor.idVendor),
1919 le16_to_cpu(udev->descriptor.idProduct));
1920 }
1921 #endif
1922
1923 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1924 if (!dev)
1925 return -ENOMEM;
1926 info = (struct usbtest_info *) id->driver_info;
1927 dev->info = info;
1928 mutex_init(&dev->lock);
1929
1930 dev->intf = intf;
1931
1932 /* cacheline-aligned scratch for i/o */
1933 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) {
1934 kfree (dev);
1935 return -ENOMEM;
1936 }
1937
1938 /* NOTE this doesn't yet test the handful of difference that are
1939 * visible with high speed interrupts: bigger maxpacket (1K) and
1940 * "high bandwidth" modes (up to 3 packets/uframe).
1941 */
1942 rtest = wtest = "";
1943 irtest = iwtest = "";
1944 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
1945 if (info->ep_in) {
1946 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in);
1947 rtest = " intr-in";
1948 }
1949 if (info->ep_out) {
1950 dev->out_pipe = usb_sndintpipe (udev, info->ep_out);
1951 wtest = " intr-out";
1952 }
1953 } else {
1954 if (info->autoconf) {
1955 int status;
1956
1957 status = get_endpoints (dev, intf);
1958 if (status < 0) {
1959 WARNING(dev, "couldn't get endpoints, %d\n",
1960 status);
1961 return status;
1962 }
1963 /* may find bulk or ISO pipes */
1964 } else {
1965 if (info->ep_in)
1966 dev->in_pipe = usb_rcvbulkpipe (udev,
1967 info->ep_in);
1968 if (info->ep_out)
1969 dev->out_pipe = usb_sndbulkpipe (udev,
1970 info->ep_out);
1971 }
1972 if (dev->in_pipe)
1973 rtest = " bulk-in";
1974 if (dev->out_pipe)
1975 wtest = " bulk-out";
1976 if (dev->in_iso_pipe)
1977 irtest = " iso-in";
1978 if (dev->out_iso_pipe)
1979 iwtest = " iso-out";
1980 }
1981
1982 usb_set_intfdata (intf, dev);
1983 dev_info (&intf->dev, "%s\n", info->name);
1984 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n",
1985 ({ char *tmp;
1986 switch (udev->speed) {
1987 case USB_SPEED_LOW: tmp = "low"; break;
1988 case USB_SPEED_FULL: tmp = "full"; break;
1989 case USB_SPEED_HIGH: tmp = "high"; break;
1990 default: tmp = "unknown"; break;
1991 }; tmp; }),
1992 info->ctrl_out ? " in/out" : "",
1993 rtest, wtest,
1994 irtest, iwtest,
1995 info->alt >= 0 ? " (+alt)" : "");
1996 return 0;
1997 }
1998
1999 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message)
2000 {
2001 return 0;
2002 }
2003
2004 static int usbtest_resume (struct usb_interface *intf)
2005 {
2006 return 0;
2007 }
2008
2009
2010 static void usbtest_disconnect (struct usb_interface *intf)
2011 {
2012 struct usbtest_dev *dev = usb_get_intfdata (intf);
2013
2014 usb_set_intfdata (intf, NULL);
2015 dev_dbg (&intf->dev, "disconnect\n");
2016 kfree (dev);
2017 }
2018
2019 /* Basic testing only needs a device that can source or sink bulk traffic.
2020 * Any device can test control transfers (default with GENERIC binding).
2021 *
2022 * Several entries work with the default EP0 implementation that's built
2023 * into EZ-USB chips. There's a default vendor ID which can be overridden
2024 * by (very) small config EEPROMS, but otherwise all these devices act
2025 * identically until firmware is loaded: only EP0 works. It turns out
2026 * to be easy to make other endpoints work, without modifying that EP0
2027 * behavior. For now, we expect that kind of firmware.
2028 */
2029
2030 /* an21xx or fx versions of ez-usb */
2031 static struct usbtest_info ez1_info = {
2032 .name = "EZ-USB device",
2033 .ep_in = 2,
2034 .ep_out = 2,
2035 .alt = 1,
2036 };
2037
2038 /* fx2 version of ez-usb */
2039 static struct usbtest_info ez2_info = {
2040 .name = "FX2 device",
2041 .ep_in = 6,
2042 .ep_out = 2,
2043 .alt = 1,
2044 };
2045
2046 /* ezusb family device with dedicated usb test firmware,
2047 */
2048 static struct usbtest_info fw_info = {
2049 .name = "usb test device",
2050 .ep_in = 2,
2051 .ep_out = 2,
2052 .alt = 1,
2053 .autoconf = 1, // iso and ctrl_out need autoconf
2054 .ctrl_out = 1,
2055 .iso = 1, // iso_ep's are #8 in/out
2056 };
2057
2058 /* peripheral running Linux and 'zero.c' test firmware, or
2059 * its user-mode cousin. different versions of this use
2060 * different hardware with the same vendor/product codes.
2061 * host side MUST rely on the endpoint descriptors.
2062 */
2063 static struct usbtest_info gz_info = {
2064 .name = "Linux gadget zero",
2065 .autoconf = 1,
2066 .ctrl_out = 1,
2067 .alt = 0,
2068 };
2069
2070 static struct usbtest_info um_info = {
2071 .name = "Linux user mode test driver",
2072 .autoconf = 1,
2073 .alt = -1,
2074 };
2075
2076 static struct usbtest_info um2_info = {
2077 .name = "Linux user mode ISO test driver",
2078 .autoconf = 1,
2079 .iso = 1,
2080 .alt = -1,
2081 };
2082
2083 #ifdef IBOT2
2084 /* this is a nice source of high speed bulk data;
2085 * uses an FX2, with firmware provided in the device
2086 */
2087 static struct usbtest_info ibot2_info = {
2088 .name = "iBOT2 webcam",
2089 .ep_in = 2,
2090 .alt = -1,
2091 };
2092 #endif
2093
2094 #ifdef GENERIC
2095 /* we can use any device to test control traffic */
2096 static struct usbtest_info generic_info = {
2097 .name = "Generic USB device",
2098 .alt = -1,
2099 };
2100 #endif
2101
2102
2103 static const struct usb_device_id id_table[] = {
2104
2105 /*-------------------------------------------------------------*/
2106
2107 /* EZ-USB devices which download firmware to replace (or in our
2108 * case augment) the default device implementation.
2109 */
2110
2111 /* generic EZ-USB FX controller */
2112 { USB_DEVICE (0x0547, 0x2235),
2113 .driver_info = (unsigned long) &ez1_info,
2114 },
2115
2116 /* CY3671 development board with EZ-USB FX */
2117 { USB_DEVICE (0x0547, 0x0080),
2118 .driver_info = (unsigned long) &ez1_info,
2119 },
2120
2121 /* generic EZ-USB FX2 controller (or development board) */
2122 { USB_DEVICE (0x04b4, 0x8613),
2123 .driver_info = (unsigned long) &ez2_info,
2124 },
2125
2126 /* re-enumerated usb test device firmware */
2127 { USB_DEVICE (0xfff0, 0xfff0),
2128 .driver_info = (unsigned long) &fw_info,
2129 },
2130
2131 /* "Gadget Zero" firmware runs under Linux */
2132 { USB_DEVICE (0x0525, 0xa4a0),
2133 .driver_info = (unsigned long) &gz_info,
2134 },
2135
2136 /* so does a user-mode variant */
2137 { USB_DEVICE (0x0525, 0xa4a4),
2138 .driver_info = (unsigned long) &um_info,
2139 },
2140
2141 /* ... and a user-mode variant that talks iso */
2142 { USB_DEVICE (0x0525, 0xa4a3),
2143 .driver_info = (unsigned long) &um2_info,
2144 },
2145
2146 #ifdef KEYSPAN_19Qi
2147 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2148 // this does not coexist with the real Keyspan 19qi driver!
2149 { USB_DEVICE (0x06cd, 0x010b),
2150 .driver_info = (unsigned long) &ez1_info,
2151 },
2152 #endif
2153
2154 /*-------------------------------------------------------------*/
2155
2156 #ifdef IBOT2
2157 /* iBOT2 makes a nice source of high speed bulk-in data */
2158 // this does not coexist with a real iBOT2 driver!
2159 { USB_DEVICE (0x0b62, 0x0059),
2160 .driver_info = (unsigned long) &ibot2_info,
2161 },
2162 #endif
2163
2164 /*-------------------------------------------------------------*/
2165
2166 #ifdef GENERIC
2167 /* module params can specify devices to use for control tests */
2168 { .driver_info = (unsigned long) &generic_info, },
2169 #endif
2170
2171 /*-------------------------------------------------------------*/
2172
2173 { }
2174 };
2175 MODULE_DEVICE_TABLE (usb, id_table);
2176
2177 static struct usb_driver usbtest_driver = {
2178 .name = "usbtest",
2179 .id_table = id_table,
2180 .probe = usbtest_probe,
2181 .unlocked_ioctl = usbtest_ioctl,
2182 .disconnect = usbtest_disconnect,
2183 .suspend = usbtest_suspend,
2184 .resume = usbtest_resume,
2185 };
2186
2187 /*-------------------------------------------------------------------------*/
2188
2189 static int __init usbtest_init (void)
2190 {
2191 #ifdef GENERIC
2192 if (vendor)
2193 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2194 #endif
2195 return usb_register (&usbtest_driver);
2196 }
2197 module_init (usbtest_init);
2198
2199 static void __exit usbtest_exit (void)
2200 {
2201 usb_deregister (&usbtest_driver);
2202 }
2203 module_exit (usbtest_exit);
2204
2205 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver");
2206 MODULE_LICENSE ("GPL");
2207
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree