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of: MSI: Simplify irqdomain lookup
[linux/fpc-iii.git] / drivers / usb / misc / usbtest.c
blob637f3f7cfce8b884167ccd6e25c9d6de9cd0eaf6
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 #include <linux/timer.h>
11 #include <linux/usb.h>
12
13 #define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */
14
15 /*-------------------------------------------------------------------------*/
16
17 static int override_alt = -1;
18 module_param_named(alt, override_alt, int, 0644);
19 MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection");
20 static void complicated_callback(struct urb *urb);
21
22 /*-------------------------------------------------------------------------*/
23
24 /* FIXME make these public somewhere; usbdevfs.h? */
25 struct usbtest_param {
26 /* inputs */
27 unsigned test_num; /* 0..(TEST_CASES-1) */
28 unsigned iterations;
29 unsigned length;
30 unsigned vary;
31 unsigned sglen;
32
33 /* outputs */
34 struct timeval duration;
35 };
36 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param)
37
38 /*-------------------------------------------------------------------------*/
39
40 #define GENERIC /* let probe() bind using module params */
41
42 /* Some devices that can be used for testing will have "real" drivers.
43 * Entries for those need to be enabled here by hand, after disabling
44 * that "real" driver.
45 */
46 //#define IBOT2 /* grab iBOT2 webcams */
47 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */
48
49 /*-------------------------------------------------------------------------*/
50
51 struct usbtest_info {
52 const char *name;
53 u8 ep_in; /* bulk/intr source */
54 u8 ep_out; /* bulk/intr sink */
55 unsigned autoconf:1;
56 unsigned ctrl_out:1;
57 unsigned iso:1; /* try iso in/out */
58 unsigned intr:1; /* try interrupt in/out */
59 int alt;
60 };
61
62 /* this is accessed only through usbfs ioctl calls.
63 * one ioctl to issue a test ... one lock per device.
64 * tests create other threads if they need them.
65 * urbs and buffers are allocated dynamically,
66 * and data generated deterministically.
67 */
68 struct usbtest_dev {
69 struct usb_interface *intf;
70 struct usbtest_info *info;
71 int in_pipe;
72 int out_pipe;
73 int in_iso_pipe;
74 int out_iso_pipe;
75 int in_int_pipe;
76 int out_int_pipe;
77 struct usb_endpoint_descriptor *iso_in, *iso_out;
78 struct usb_endpoint_descriptor *int_in, *int_out;
79 struct mutex lock;
80
81 #define TBUF_SIZE 256
82 u8 *buf;
83 };
84
85 static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
86 {
87 return interface_to_usbdev(test->intf);
88 }
89
90 /* set up all urbs so they can be used with either bulk or interrupt */
91 #define INTERRUPT_RATE 1 /* msec/transfer */
92
93 #define ERROR(tdev, fmt, args...) \
94 dev_err(&(tdev)->intf->dev , fmt , ## args)
95 #define WARNING(tdev, fmt, args...) \
96 dev_warn(&(tdev)->intf->dev , fmt , ## args)
97
98 #define GUARD_BYTE 0xA5
99 #define MAX_SGLEN 128
100
101 /*-------------------------------------------------------------------------*/
102
103 static int
104 get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
105 {
106 int tmp;
107 struct usb_host_interface *alt;
108 struct usb_host_endpoint *in, *out;
109 struct usb_host_endpoint *iso_in, *iso_out;
110 struct usb_host_endpoint *int_in, *int_out;
111 struct usb_device *udev;
112
113 for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
114 unsigned ep;
115
116 in = out = NULL;
117 iso_in = iso_out = NULL;
118 int_in = int_out = NULL;
119 alt = intf->altsetting + tmp;
120
121 if (override_alt >= 0 &&
122 override_alt != alt->desc.bAlternateSetting)
123 continue;
124
125 /* take the first altsetting with in-bulk + out-bulk;
126 * ignore other endpoints and altsettings.
127 */
128 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
129 struct usb_host_endpoint *e;
130
131 e = alt->endpoint + ep;
132 switch (usb_endpoint_type(&e->desc)) {
133 case USB_ENDPOINT_XFER_BULK:
134 break;
135 case USB_ENDPOINT_XFER_INT:
136 if (dev->info->intr)
137 goto try_intr;
138 case USB_ENDPOINT_XFER_ISOC:
139 if (dev->info->iso)
140 goto try_iso;
141 /* FALLTHROUGH */
142 default:
143 continue;
144 }
145 if (usb_endpoint_dir_in(&e->desc)) {
146 if (!in)
147 in = e;
148 } else {
149 if (!out)
150 out = e;
151 }
152 continue;
153 try_intr:
154 if (usb_endpoint_dir_in(&e->desc)) {
155 if (!int_in)
156 int_in = e;
157 } else {
158 if (!int_out)
159 int_out = e;
160 }
161 continue;
162 try_iso:
163 if (usb_endpoint_dir_in(&e->desc)) {
164 if (!iso_in)
165 iso_in = e;
166 } else {
167 if (!iso_out)
168 iso_out = e;
169 }
170 }
171 if ((in && out) || iso_in || iso_out || int_in || int_out)
172 goto found;
173 }
174 return -EINVAL;
175
176 found:
177 udev = testdev_to_usbdev(dev);
178 dev->info->alt = alt->desc.bAlternateSetting;
179 if (alt->desc.bAlternateSetting != 0) {
180 tmp = usb_set_interface(udev,
181 alt->desc.bInterfaceNumber,
182 alt->desc.bAlternateSetting);
183 if (tmp < 0)
184 return tmp;
185 }
186
187 if (in) {
188 dev->in_pipe = usb_rcvbulkpipe(udev,
189 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
190 dev->out_pipe = usb_sndbulkpipe(udev,
191 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
192 }
193 if (iso_in) {
194 dev->iso_in = &iso_in->desc;
195 dev->in_iso_pipe = usb_rcvisocpipe(udev,
196 iso_in->desc.bEndpointAddress
197 & USB_ENDPOINT_NUMBER_MASK);
198 }
199
200 if (iso_out) {
201 dev->iso_out = &iso_out->desc;
202 dev->out_iso_pipe = usb_sndisocpipe(udev,
203 iso_out->desc.bEndpointAddress
204 & USB_ENDPOINT_NUMBER_MASK);
205 }
206
207 if (int_in) {
208 dev->int_in = &int_in->desc;
209 dev->in_int_pipe = usb_rcvintpipe(udev,
210 int_in->desc.bEndpointAddress
211 & USB_ENDPOINT_NUMBER_MASK);
212 }
213
214 if (int_out) {
215 dev->int_out = &int_out->desc;
216 dev->out_int_pipe = usb_sndintpipe(udev,
217 int_out->desc.bEndpointAddress
218 & USB_ENDPOINT_NUMBER_MASK);
219 }
220 return 0;
221 }
222
223 /*-------------------------------------------------------------------------*/
224
225 /* Support for testing basic non-queued I/O streams.
226 *
227 * These just package urbs as requests that can be easily canceled.
228 * Each urb's data buffer is dynamically allocated; callers can fill
229 * them with non-zero test data (or test for it) when appropriate.
230 */
231
232 static void simple_callback(struct urb *urb)
233 {
234 complete(urb->context);
235 }
236
237 static struct urb *usbtest_alloc_urb(
238 struct usb_device *udev,
239 int pipe,
240 unsigned long bytes,
241 unsigned transfer_flags,
242 unsigned offset,
243 u8 bInterval,
244 usb_complete_t complete_fn)
245 {
246 struct urb *urb;
247
248 urb = usb_alloc_urb(0, GFP_KERNEL);
249 if (!urb)
250 return urb;
251
252 if (bInterval)
253 usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn,
254 NULL, bInterval);
255 else
256 usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn,
257 NULL);
258
259 urb->interval = (udev->speed == USB_SPEED_HIGH)
260 ? (INTERRUPT_RATE << 3)
261 : INTERRUPT_RATE;
262 urb->transfer_flags = transfer_flags;
263 if (usb_pipein(pipe))
264 urb->transfer_flags |= URB_SHORT_NOT_OK;
265
266 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
267 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
268 GFP_KERNEL, &urb->transfer_dma);
269 else
270 urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL);
271
272 if (!urb->transfer_buffer) {
273 usb_free_urb(urb);
274 return NULL;
275 }
276
277 /* To test unaligned transfers add an offset and fill the
278 unused memory with a guard value */
279 if (offset) {
280 memset(urb->transfer_buffer, GUARD_BYTE, offset);
281 urb->transfer_buffer += offset;
282 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
283 urb->transfer_dma += offset;
284 }
285
286 /* For inbound transfers use guard byte so that test fails if
287 data not correctly copied */
288 memset(urb->transfer_buffer,
289 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
290 bytes);
291 return urb;
292 }
293
294 static struct urb *simple_alloc_urb(
295 struct usb_device *udev,
296 int pipe,
297 unsigned long bytes,
298 u8 bInterval)
299 {
300 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
301 bInterval, simple_callback);
302 }
303
304 static struct urb *complicated_alloc_urb(
305 struct usb_device *udev,
306 int pipe,
307 unsigned long bytes,
308 u8 bInterval)
309 {
310 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
311 bInterval, complicated_callback);
312 }
313
314 static unsigned pattern;
315 static unsigned mod_pattern;
316 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
317 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
318
319 static unsigned get_maxpacket(struct usb_device *udev, int pipe)
320 {
321 struct usb_host_endpoint *ep;
322
323 ep = usb_pipe_endpoint(udev, pipe);
324 return le16_to_cpup(&ep->desc.wMaxPacketSize);
325 }
326
327 static void simple_fill_buf(struct urb *urb)
328 {
329 unsigned i;
330 u8 *buf = urb->transfer_buffer;
331 unsigned len = urb->transfer_buffer_length;
332 unsigned maxpacket;
333
334 switch (pattern) {
335 default:
336 /* FALLTHROUGH */
337 case 0:
338 memset(buf, 0, len);
339 break;
340 case 1: /* mod63 */
341 maxpacket = get_maxpacket(urb->dev, urb->pipe);
342 for (i = 0; i < len; i++)
343 *buf++ = (u8) ((i % maxpacket) % 63);
344 break;
345 }
346 }
347
348 static inline unsigned long buffer_offset(void *buf)
349 {
350 return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1);
351 }
352
353 static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb)
354 {
355 u8 *buf = urb->transfer_buffer;
356 u8 *guard = buf - buffer_offset(buf);
357 unsigned i;
358
359 for (i = 0; guard < buf; i++, guard++) {
360 if (*guard != GUARD_BYTE) {
361 ERROR(tdev, "guard byte[%d] %d (not %d)\n",
362 i, *guard, GUARD_BYTE);
363 return -EINVAL;
364 }
365 }
366 return 0;
367 }
368
369 static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
370 {
371 unsigned i;
372 u8 expected;
373 u8 *buf = urb->transfer_buffer;
374 unsigned len = urb->actual_length;
375 unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe);
376
377 int ret = check_guard_bytes(tdev, urb);
378 if (ret)
379 return ret;
380
381 for (i = 0; i < len; i++, buf++) {
382 switch (pattern) {
383 /* all-zeroes has no synchronization issues */
384 case 0:
385 expected = 0;
386 break;
387 /* mod63 stays in sync with short-terminated transfers,
388 * or otherwise when host and gadget agree on how large
389 * each usb transfer request should be. resync is done
390 * with set_interface or set_config.
391 */
392 case 1: /* mod63 */
393 expected = (i % maxpacket) % 63;
394 break;
395 /* always fail unsupported patterns */
396 default:
397 expected = !*buf;
398 break;
399 }
400 if (*buf == expected)
401 continue;
402 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
403 return -EINVAL;
404 }
405 return 0;
406 }
407
408 static void simple_free_urb(struct urb *urb)
409 {
410 unsigned long offset = buffer_offset(urb->transfer_buffer);
411
412 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
413 usb_free_coherent(
414 urb->dev,
415 urb->transfer_buffer_length + offset,
416 urb->transfer_buffer - offset,
417 urb->transfer_dma - offset);
418 else
419 kfree(urb->transfer_buffer - offset);
420 usb_free_urb(urb);
421 }
422
423 static int simple_io(
424 struct usbtest_dev *tdev,
425 struct urb *urb,
426 int iterations,
427 int vary,
428 int expected,
429 const char *label
430 )
431 {
432 struct usb_device *udev = urb->dev;
433 int max = urb->transfer_buffer_length;
434 struct completion completion;
435 int retval = 0;
436 unsigned long expire;
437
438 urb->context = &completion;
439 while (retval == 0 && iterations-- > 0) {
440 init_completion(&completion);
441 if (usb_pipeout(urb->pipe)) {
442 simple_fill_buf(urb);
443 urb->transfer_flags |= URB_ZERO_PACKET;
444 }
445 retval = usb_submit_urb(urb, GFP_KERNEL);
446 if (retval != 0)
447 break;
448
449 expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT);
450 if (!wait_for_completion_timeout(&completion, expire)) {
451 usb_kill_urb(urb);
452 retval = (urb->status == -ENOENT ?
453 -ETIMEDOUT : urb->status);
454 } else {
455 retval = urb->status;
456 }
457
458 urb->dev = udev;
459 if (retval == 0 && usb_pipein(urb->pipe))
460 retval = simple_check_buf(tdev, urb);
461
462 if (vary) {
463 int len = urb->transfer_buffer_length;
464
465 len += vary;
466 len %= max;
467 if (len == 0)
468 len = (vary < max) ? vary : max;
469 urb->transfer_buffer_length = len;
470 }
471
472 /* FIXME if endpoint halted, clear halt (and log) */
473 }
474 urb->transfer_buffer_length = max;
475
476 if (expected != retval)
477 dev_err(&udev->dev,
478 "%s failed, iterations left %d, status %d (not %d)\n",
479 label, iterations, retval, expected);
480 return retval;
481 }
482
483
484 /*-------------------------------------------------------------------------*/
485
486 /* We use scatterlist primitives to test queued I/O.
487 * Yes, this also tests the scatterlist primitives.
488 */
489
490 static void free_sglist(struct scatterlist *sg, int nents)
491 {
492 unsigned i;
493
494 if (!sg)
495 return;
496 for (i = 0; i < nents; i++) {
497 if (!sg_page(&sg[i]))
498 continue;
499 kfree(sg_virt(&sg[i]));
500 }
501 kfree(sg);
502 }
503
504 static struct scatterlist *
505 alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
506 {
507 struct scatterlist *sg;
508 unsigned i;
509 unsigned size = max;
510 unsigned maxpacket =
511 get_maxpacket(interface_to_usbdev(dev->intf), pipe);
512
513 if (max == 0)
514 return NULL;
515
516 sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL);
517 if (!sg)
518 return NULL;
519 sg_init_table(sg, nents);
520
521 for (i = 0; i < nents; i++) {
522 char *buf;
523 unsigned j;
524
525 buf = kzalloc(size, GFP_KERNEL);
526 if (!buf) {
527 free_sglist(sg, i);
528 return NULL;
529 }
530
531 /* kmalloc pages are always physically contiguous! */
532 sg_set_buf(&sg[i], buf, size);
533
534 switch (pattern) {
535 case 0:
536 /* already zeroed */
537 break;
538 case 1:
539 for (j = 0; j < size; j++)
540 *buf++ = (u8) ((j % maxpacket) % 63);
541 break;
542 }
543
544 if (vary) {
545 size += vary;
546 size %= max;
547 if (size == 0)
548 size = (vary < max) ? vary : max;
549 }
550 }
551
552 return sg;
553 }
554
555 static void sg_timeout(unsigned long _req)
556 {
557 struct usb_sg_request *req = (struct usb_sg_request *) _req;
558
559 req->status = -ETIMEDOUT;
560 usb_sg_cancel(req);
561 }
562
563 static int perform_sglist(
564 struct usbtest_dev *tdev,
565 unsigned iterations,
566 int pipe,
567 struct usb_sg_request *req,
568 struct scatterlist *sg,
569 int nents
570 )
571 {
572 struct usb_device *udev = testdev_to_usbdev(tdev);
573 int retval = 0;
574 struct timer_list sg_timer;
575
576 setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
577
578 while (retval == 0 && iterations-- > 0) {
579 retval = usb_sg_init(req, udev, pipe,
580 (udev->speed == USB_SPEED_HIGH)
581 ? (INTERRUPT_RATE << 3)
582 : INTERRUPT_RATE,
583 sg, nents, 0, GFP_KERNEL);
584
585 if (retval)
586 break;
587 mod_timer(&sg_timer, jiffies +
588 msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
589 usb_sg_wait(req);
590 del_timer_sync(&sg_timer);
591 retval = req->status;
592
593 /* FIXME check resulting data pattern */
594
595 /* FIXME if endpoint halted, clear halt (and log) */
596 }
597
598 /* FIXME for unlink or fault handling tests, don't report
599 * failure if retval is as we expected ...
600 */
601 if (retval)
602 ERROR(tdev, "perform_sglist failed, "
603 "iterations left %d, status %d\n",
604 iterations, retval);
605 return retval;
606 }
607
608
609 /*-------------------------------------------------------------------------*/
610
611 /* unqueued control message testing
612 *
613 * there's a nice set of device functional requirements in chapter 9 of the
614 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
615 * special test firmware.
616 *
617 * we know the device is configured (or suspended) by the time it's visible
618 * through usbfs. we can't change that, so we won't test enumeration (which
619 * worked 'well enough' to get here, this time), power management (ditto),
620 * or remote wakeup (which needs human interaction).
621 */
622
623 static unsigned realworld = 1;
624 module_param(realworld, uint, 0);
625 MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
626
627 static int get_altsetting(struct usbtest_dev *dev)
628 {
629 struct usb_interface *iface = dev->intf;
630 struct usb_device *udev = interface_to_usbdev(iface);
631 int retval;
632
633 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
634 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
635 0, iface->altsetting[0].desc.bInterfaceNumber,
636 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
637 switch (retval) {
638 case 1:
639 return dev->buf[0];
640 case 0:
641 retval = -ERANGE;
642 /* FALLTHROUGH */
643 default:
644 return retval;
645 }
646 }
647
648 static int set_altsetting(struct usbtest_dev *dev, int alternate)
649 {
650 struct usb_interface *iface = dev->intf;
651 struct usb_device *udev;
652
653 if (alternate < 0 || alternate >= 256)
654 return -EINVAL;
655
656 udev = interface_to_usbdev(iface);
657 return usb_set_interface(udev,
658 iface->altsetting[0].desc.bInterfaceNumber,
659 alternate);
660 }
661
662 static int is_good_config(struct usbtest_dev *tdev, int len)
663 {
664 struct usb_config_descriptor *config;
665
666 if (len < sizeof(*config))
667 return 0;
668 config = (struct usb_config_descriptor *) tdev->buf;
669
670 switch (config->bDescriptorType) {
671 case USB_DT_CONFIG:
672 case USB_DT_OTHER_SPEED_CONFIG:
673 if (config->bLength != 9) {
674 ERROR(tdev, "bogus config descriptor length\n");
675 return 0;
676 }
677 /* this bit 'must be 1' but often isn't */
678 if (!realworld && !(config->bmAttributes & 0x80)) {
679 ERROR(tdev, "high bit of config attributes not set\n");
680 return 0;
681 }
682 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
683 ERROR(tdev, "reserved config bits set\n");
684 return 0;
685 }
686 break;
687 default:
688 return 0;
689 }
690
691 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
692 return 1;
693 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
694 return 1;
695 ERROR(tdev, "bogus config descriptor read size\n");
696 return 0;
697 }
698
699 static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
700 {
701 struct usb_ext_cap_descriptor *ext;
702 u32 attr;
703
704 ext = (struct usb_ext_cap_descriptor *) buf;
705
706 if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
707 ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
708 return 0;
709 }
710
711 attr = le32_to_cpu(ext->bmAttributes);
712 /* bits[1:15] is used and others are reserved */
713 if (attr & ~0xfffe) { /* reserved == 0 */
714 ERROR(tdev, "reserved bits set\n");
715 return 0;
716 }
717
718 return 1;
719 }
720
721 static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
722 {
723 struct usb_ss_cap_descriptor *ss;
724
725 ss = (struct usb_ss_cap_descriptor *) buf;
726
727 if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
728 ERROR(tdev, "bogus superspeed device capability descriptor length\n");
729 return 0;
730 }
731
732 /*
733 * only bit[1] of bmAttributes is used for LTM and others are
734 * reserved
735 */
736 if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
737 ERROR(tdev, "reserved bits set in bmAttributes\n");
738 return 0;
739 }
740
741 /* bits[0:3] of wSpeedSupported is used and others are reserved */
742 if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
743 ERROR(tdev, "reserved bits set in wSpeedSupported\n");
744 return 0;
745 }
746
747 return 1;
748 }
749
750 static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
751 {
752 struct usb_ss_container_id_descriptor *con_id;
753
754 con_id = (struct usb_ss_container_id_descriptor *) buf;
755
756 if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
757 ERROR(tdev, "bogus container id descriptor length\n");
758 return 0;
759 }
760
761 if (con_id->bReserved) { /* reserved == 0 */
762 ERROR(tdev, "reserved bits set\n");
763 return 0;
764 }
765
766 return 1;
767 }
768
769 /* sanity test for standard requests working with usb_control_mesg() and some
770 * of the utility functions which use it.
771 *
772 * this doesn't test how endpoint halts behave or data toggles get set, since
773 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
774 * halt or toggle). toggle testing is impractical without support from hcds.
775 *
776 * this avoids failing devices linux would normally work with, by not testing
777 * config/altsetting operations for devices that only support their defaults.
778 * such devices rarely support those needless operations.
779 *
780 * NOTE that since this is a sanity test, it's not examining boundary cases
781 * to see if usbcore, hcd, and device all behave right. such testing would
782 * involve varied read sizes and other operation sequences.
783 */
784 static int ch9_postconfig(struct usbtest_dev *dev)
785 {
786 struct usb_interface *iface = dev->intf;
787 struct usb_device *udev = interface_to_usbdev(iface);
788 int i, alt, retval;
789
790 /* [9.2.3] if there's more than one altsetting, we need to be able to
791 * set and get each one. mostly trusts the descriptors from usbcore.
792 */
793 for (i = 0; i < iface->num_altsetting; i++) {
794
795 /* 9.2.3 constrains the range here */
796 alt = iface->altsetting[i].desc.bAlternateSetting;
797 if (alt < 0 || alt >= iface->num_altsetting) {
798 dev_err(&iface->dev,
799 "invalid alt [%d].bAltSetting = %d\n",
800 i, alt);
801 }
802
803 /* [real world] get/set unimplemented if there's only one */
804 if (realworld && iface->num_altsetting == 1)
805 continue;
806
807 /* [9.4.10] set_interface */
808 retval = set_altsetting(dev, alt);
809 if (retval) {
810 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
811 alt, retval);
812 return retval;
813 }
814
815 /* [9.4.4] get_interface always works */
816 retval = get_altsetting(dev);
817 if (retval != alt) {
818 dev_err(&iface->dev, "get alt should be %d, was %d\n",
819 alt, retval);
820 return (retval < 0) ? retval : -EDOM;
821 }
822
823 }
824
825 /* [real world] get_config unimplemented if there's only one */
826 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
827 int expected = udev->actconfig->desc.bConfigurationValue;
828
829 /* [9.4.2] get_configuration always works
830 * ... although some cheap devices (like one TI Hub I've got)
831 * won't return config descriptors except before set_config.
832 */
833 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
834 USB_REQ_GET_CONFIGURATION,
835 USB_DIR_IN | USB_RECIP_DEVICE,
836 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
837 if (retval != 1 || dev->buf[0] != expected) {
838 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
839 retval, dev->buf[0], expected);
840 return (retval < 0) ? retval : -EDOM;
841 }
842 }
843
844 /* there's always [9.4.3] a device descriptor [9.6.1] */
845 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
846 dev->buf, sizeof(udev->descriptor));
847 if (retval != sizeof(udev->descriptor)) {
848 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
849 return (retval < 0) ? retval : -EDOM;
850 }
851
852 /*
853 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
854 * 3.0 spec
855 */
856 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) {
857 struct usb_bos_descriptor *bos = NULL;
858 struct usb_dev_cap_header *header = NULL;
859 unsigned total, num, length;
860 u8 *buf;
861
862 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
863 sizeof(*udev->bos->desc));
864 if (retval != sizeof(*udev->bos->desc)) {
865 dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
866 return (retval < 0) ? retval : -EDOM;
867 }
868
869 bos = (struct usb_bos_descriptor *)dev->buf;
870 total = le16_to_cpu(bos->wTotalLength);
871 num = bos->bNumDeviceCaps;
872
873 if (total > TBUF_SIZE)
874 total = TBUF_SIZE;
875
876 /*
877 * get generic device-level capability descriptors [9.6.2]
878 * in USB 3.0 spec
879 */
880 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
881 total);
882 if (retval != total) {
883 dev_err(&iface->dev, "bos descriptor set --> %d\n",
884 retval);
885 return (retval < 0) ? retval : -EDOM;
886 }
887
888 length = sizeof(*udev->bos->desc);
889 buf = dev->buf;
890 for (i = 0; i < num; i++) {
891 buf += length;
892 if (buf + sizeof(struct usb_dev_cap_header) >
893 dev->buf + total)
894 break;
895
896 header = (struct usb_dev_cap_header *)buf;
897 length = header->bLength;
898
899 if (header->bDescriptorType !=
900 USB_DT_DEVICE_CAPABILITY) {
901 dev_warn(&udev->dev, "not device capability descriptor, skip\n");
902 continue;
903 }
904
905 switch (header->bDevCapabilityType) {
906 case USB_CAP_TYPE_EXT:
907 if (buf + USB_DT_USB_EXT_CAP_SIZE >
908 dev->buf + total ||
909 !is_good_ext(dev, buf)) {
910 dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
911 return -EDOM;
912 }
913 break;
914 case USB_SS_CAP_TYPE:
915 if (buf + USB_DT_USB_SS_CAP_SIZE >
916 dev->buf + total ||
917 !is_good_ss_cap(dev, buf)) {
918 dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
919 return -EDOM;
920 }
921 break;
922 case CONTAINER_ID_TYPE:
923 if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
924 dev->buf + total ||
925 !is_good_con_id(dev, buf)) {
926 dev_err(&iface->dev, "bogus container id descriptor\n");
927 return -EDOM;
928 }
929 break;
930 default:
931 break;
932 }
933 }
934 }
935
936 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
937 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
938 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
939 dev->buf, TBUF_SIZE);
940 if (!is_good_config(dev, retval)) {
941 dev_err(&iface->dev,
942 "config [%d] descriptor --> %d\n",
943 i, retval);
944 return (retval < 0) ? retval : -EDOM;
945 }
946
947 /* FIXME cross-checking udev->config[i] to make sure usbcore
948 * parsed it right (etc) would be good testing paranoia
949 */
950 }
951
952 /* and sometimes [9.2.6.6] speed dependent descriptors */
953 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
954 struct usb_qualifier_descriptor *d = NULL;
955
956 /* device qualifier [9.6.2] */
957 retval = usb_get_descriptor(udev,
958 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
959 sizeof(struct usb_qualifier_descriptor));
960 if (retval == -EPIPE) {
961 if (udev->speed == USB_SPEED_HIGH) {
962 dev_err(&iface->dev,
963 "hs dev qualifier --> %d\n",
964 retval);
965 return (retval < 0) ? retval : -EDOM;
966 }
967 /* usb2.0 but not high-speed capable; fine */
968 } else if (retval != sizeof(struct usb_qualifier_descriptor)) {
969 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
970 return (retval < 0) ? retval : -EDOM;
971 } else
972 d = (struct usb_qualifier_descriptor *) dev->buf;
973
974 /* might not have [9.6.2] any other-speed configs [9.6.4] */
975 if (d) {
976 unsigned max = d->bNumConfigurations;
977 for (i = 0; i < max; i++) {
978 retval = usb_get_descriptor(udev,
979 USB_DT_OTHER_SPEED_CONFIG, i,
980 dev->buf, TBUF_SIZE);
981 if (!is_good_config(dev, retval)) {
982 dev_err(&iface->dev,
983 "other speed config --> %d\n",
984 retval);
985 return (retval < 0) ? retval : -EDOM;
986 }
987 }
988 }
989 }
990 /* FIXME fetch strings from at least the device descriptor */
991
992 /* [9.4.5] get_status always works */
993 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
994 if (retval) {
995 dev_err(&iface->dev, "get dev status --> %d\n", retval);
996 return retval;
997 }
998
999 /* FIXME configuration.bmAttributes says if we could try to set/clear
1000 * the device's remote wakeup feature ... if we can, test that here
1001 */
1002
1003 retval = usb_get_status(udev, USB_RECIP_INTERFACE,
1004 iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
1005 if (retval) {
1006 dev_err(&iface->dev, "get interface status --> %d\n", retval);
1007 return retval;
1008 }
1009 /* FIXME get status for each endpoint in the interface */
1010
1011 return 0;
1012 }
1013
1014 /*-------------------------------------------------------------------------*/
1015
1016 /* use ch9 requests to test whether:
1017 * (a) queues work for control, keeping N subtests queued and
1018 * active (auto-resubmit) for M loops through the queue.
1019 * (b) protocol stalls (control-only) will autorecover.
1020 * it's not like bulk/intr; no halt clearing.
1021 * (c) short control reads are reported and handled.
1022 * (d) queues are always processed in-order
1023 */
1024
1025 struct ctrl_ctx {
1026 spinlock_t lock;
1027 struct usbtest_dev *dev;
1028 struct completion complete;
1029 unsigned count;
1030 unsigned pending;
1031 int status;
1032 struct urb **urb;
1033 struct usbtest_param *param;
1034 int last;
1035 };
1036
1037 #define NUM_SUBCASES 16 /* how many test subcases here? */
1038
1039 struct subcase {
1040 struct usb_ctrlrequest setup;
1041 int number;
1042 int expected;
1043 };
1044
1045 static void ctrl_complete(struct urb *urb)
1046 {
1047 struct ctrl_ctx *ctx = urb->context;
1048 struct usb_ctrlrequest *reqp;
1049 struct subcase *subcase;
1050 int status = urb->status;
1051
1052 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
1053 subcase = container_of(reqp, struct subcase, setup);
1054
1055 spin_lock(&ctx->lock);
1056 ctx->count--;
1057 ctx->pending--;
1058
1059 /* queue must transfer and complete in fifo order, unless
1060 * usb_unlink_urb() is used to unlink something not at the
1061 * physical queue head (not tested).
1062 */
1063 if (subcase->number > 0) {
1064 if ((subcase->number - ctx->last) != 1) {
1065 ERROR(ctx->dev,
1066 "subcase %d completed out of order, last %d\n",
1067 subcase->number, ctx->last);
1068 status = -EDOM;
1069 ctx->last = subcase->number;
1070 goto error;
1071 }
1072 }
1073 ctx->last = subcase->number;
1074
1075 /* succeed or fault in only one way? */
1076 if (status == subcase->expected)
1077 status = 0;
1078
1079 /* async unlink for cleanup? */
1080 else if (status != -ECONNRESET) {
1081
1082 /* some faults are allowed, not required */
1083 if (subcase->expected > 0 && (
1084 ((status == -subcase->expected /* happened */
1085 || status == 0)))) /* didn't */
1086 status = 0;
1087 /* sometimes more than one fault is allowed */
1088 else if (subcase->number == 12 && status == -EPIPE)
1089 status = 0;
1090 else
1091 ERROR(ctx->dev, "subtest %d error, status %d\n",
1092 subcase->number, status);
1093 }
1094
1095 /* unexpected status codes mean errors; ideally, in hardware */
1096 if (status) {
1097 error:
1098 if (ctx->status == 0) {
1099 int i;
1100
1101 ctx->status = status;
1102 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
1103 "%d left, subcase %d, len %d/%d\n",
1104 reqp->bRequestType, reqp->bRequest,
1105 status, ctx->count, subcase->number,
1106 urb->actual_length,
1107 urb->transfer_buffer_length);
1108
1109 /* FIXME this "unlink everything" exit route should
1110 * be a separate test case.
1111 */
1112
1113 /* unlink whatever's still pending */
1114 for (i = 1; i < ctx->param->sglen; i++) {
1115 struct urb *u = ctx->urb[
1116 (i + subcase->number)
1117 % ctx->param->sglen];
1118
1119 if (u == urb || !u->dev)
1120 continue;
1121 spin_unlock(&ctx->lock);
1122 status = usb_unlink_urb(u);
1123 spin_lock(&ctx->lock);
1124 switch (status) {
1125 case -EINPROGRESS:
1126 case -EBUSY:
1127 case -EIDRM:
1128 continue;
1129 default:
1130 ERROR(ctx->dev, "urb unlink --> %d\n",
1131 status);
1132 }
1133 }
1134 status = ctx->status;
1135 }
1136 }
1137
1138 /* resubmit if we need to, else mark this as done */
1139 if ((status == 0) && (ctx->pending < ctx->count)) {
1140 status = usb_submit_urb(urb, GFP_ATOMIC);
1141 if (status != 0) {
1142 ERROR(ctx->dev,
1143 "can't resubmit ctrl %02x.%02x, err %d\n",
1144 reqp->bRequestType, reqp->bRequest, status);
1145 urb->dev = NULL;
1146 } else
1147 ctx->pending++;
1148 } else
1149 urb->dev = NULL;
1150
1151 /* signal completion when nothing's queued */
1152 if (ctx->pending == 0)
1153 complete(&ctx->complete);
1154 spin_unlock(&ctx->lock);
1155 }
1156
1157 static int
1158 test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
1159 {
1160 struct usb_device *udev = testdev_to_usbdev(dev);
1161 struct urb **urb;
1162 struct ctrl_ctx context;
1163 int i;
1164
1165 if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
1166 return -EOPNOTSUPP;
1167
1168 spin_lock_init(&context.lock);
1169 context.dev = dev;
1170 init_completion(&context.complete);
1171 context.count = param->sglen * param->iterations;
1172 context.pending = 0;
1173 context.status = -ENOMEM;
1174 context.param = param;
1175 context.last = -1;
1176
1177 /* allocate and init the urbs we'll queue.
1178 * as with bulk/intr sglists, sglen is the queue depth; it also
1179 * controls which subtests run (more tests than sglen) or rerun.
1180 */
1181 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
1182 if (!urb)
1183 return -ENOMEM;
1184 for (i = 0; i < param->sglen; i++) {
1185 int pipe = usb_rcvctrlpipe(udev, 0);
1186 unsigned len;
1187 struct urb *u;
1188 struct usb_ctrlrequest req;
1189 struct subcase *reqp;
1190
1191 /* sign of this variable means:
1192 * -: tested code must return this (negative) error code
1193 * +: tested code may return this (negative too) error code
1194 */
1195 int expected = 0;
1196
1197 /* requests here are mostly expected to succeed on any
1198 * device, but some are chosen to trigger protocol stalls
1199 * or short reads.
1200 */
1201 memset(&req, 0, sizeof(req));
1202 req.bRequest = USB_REQ_GET_DESCRIPTOR;
1203 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1204
1205 switch (i % NUM_SUBCASES) {
1206 case 0: /* get device descriptor */
1207 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
1208 len = sizeof(struct usb_device_descriptor);
1209 break;
1210 case 1: /* get first config descriptor (only) */
1211 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1212 len = sizeof(struct usb_config_descriptor);
1213 break;
1214 case 2: /* get altsetting (OFTEN STALLS) */
1215 req.bRequest = USB_REQ_GET_INTERFACE;
1216 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1217 /* index = 0 means first interface */
1218 len = 1;
1219 expected = EPIPE;
1220 break;
1221 case 3: /* get interface status */
1222 req.bRequest = USB_REQ_GET_STATUS;
1223 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
1224 /* interface 0 */
1225 len = 2;
1226 break;
1227 case 4: /* get device status */
1228 req.bRequest = USB_REQ_GET_STATUS;
1229 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1230 len = 2;
1231 break;
1232 case 5: /* get device qualifier (MAY STALL) */
1233 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
1234 len = sizeof(struct usb_qualifier_descriptor);
1235 if (udev->speed != USB_SPEED_HIGH)
1236 expected = EPIPE;
1237 break;
1238 case 6: /* get first config descriptor, plus interface */
1239 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1240 len = sizeof(struct usb_config_descriptor);
1241 len += sizeof(struct usb_interface_descriptor);
1242 break;
1243 case 7: /* get interface descriptor (ALWAYS STALLS) */
1244 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
1245 /* interface == 0 */
1246 len = sizeof(struct usb_interface_descriptor);
1247 expected = -EPIPE;
1248 break;
1249 /* NOTE: two consecutive stalls in the queue here.
1250 * that tests fault recovery a bit more aggressively. */
1251 case 8: /* clear endpoint halt (MAY STALL) */
1252 req.bRequest = USB_REQ_CLEAR_FEATURE;
1253 req.bRequestType = USB_RECIP_ENDPOINT;
1254 /* wValue 0 == ep halt */
1255 /* wIndex 0 == ep0 (shouldn't halt!) */
1256 len = 0;
1257 pipe = usb_sndctrlpipe(udev, 0);
1258 expected = EPIPE;
1259 break;
1260 case 9: /* get endpoint status */
1261 req.bRequest = USB_REQ_GET_STATUS;
1262 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
1263 /* endpoint 0 */
1264 len = 2;
1265 break;
1266 case 10: /* trigger short read (EREMOTEIO) */
1267 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1268 len = 1024;
1269 expected = -EREMOTEIO;
1270 break;
1271 /* NOTE: two consecutive _different_ faults in the queue. */
1272 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
1273 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
1274 /* endpoint == 0 */
1275 len = sizeof(struct usb_interface_descriptor);
1276 expected = EPIPE;
1277 break;
1278 /* NOTE: sometimes even a third fault in the queue! */
1279 case 12: /* get string 0 descriptor (MAY STALL) */
1280 req.wValue = cpu_to_le16(USB_DT_STRING << 8);
1281 /* string == 0, for language IDs */
1282 len = sizeof(struct usb_interface_descriptor);
1283 /* may succeed when > 4 languages */
1284 expected = EREMOTEIO; /* or EPIPE, if no strings */
1285 break;
1286 case 13: /* short read, resembling case 10 */
1287 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1288 /* last data packet "should" be DATA1, not DATA0 */
1289 if (udev->speed == USB_SPEED_SUPER)
1290 len = 1024 - 512;
1291 else
1292 len = 1024 - udev->descriptor.bMaxPacketSize0;
1293 expected = -EREMOTEIO;
1294 break;
1295 case 14: /* short read; try to fill the last packet */
1296 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
1297 /* device descriptor size == 18 bytes */
1298 len = udev->descriptor.bMaxPacketSize0;
1299 if (udev->speed == USB_SPEED_SUPER)
1300 len = 512;
1301 switch (len) {
1302 case 8:
1303 len = 24;
1304 break;
1305 case 16:
1306 len = 32;
1307 break;
1308 }
1309 expected = -EREMOTEIO;
1310 break;
1311 case 15:
1312 req.wValue = cpu_to_le16(USB_DT_BOS << 8);
1313 if (udev->bos)
1314 len = le16_to_cpu(udev->bos->desc->wTotalLength);
1315 else
1316 len = sizeof(struct usb_bos_descriptor);
1317 if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201)
1318 expected = -EPIPE;
1319 break;
1320 default:
1321 ERROR(dev, "bogus number of ctrl queue testcases!\n");
1322 context.status = -EINVAL;
1323 goto cleanup;
1324 }
1325 req.wLength = cpu_to_le16(len);
1326 urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);
1327 if (!u)
1328 goto cleanup;
1329
1330 reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
1331 if (!reqp)
1332 goto cleanup;
1333 reqp->setup = req;
1334 reqp->number = i % NUM_SUBCASES;
1335 reqp->expected = expected;
1336 u->setup_packet = (char *) &reqp->setup;
1337
1338 u->context = &context;
1339 u->complete = ctrl_complete;
1340 }
1341
1342 /* queue the urbs */
1343 context.urb = urb;
1344 spin_lock_irq(&context.lock);
1345 for (i = 0; i < param->sglen; i++) {
1346 context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
1347 if (context.status != 0) {
1348 ERROR(dev, "can't submit urb[%d], status %d\n",
1349 i, context.status);
1350 context.count = context.pending;
1351 break;
1352 }
1353 context.pending++;
1354 }
1355 spin_unlock_irq(&context.lock);
1356
1357 /* FIXME set timer and time out; provide a disconnect hook */
1358
1359 /* wait for the last one to complete */
1360 if (context.pending > 0)
1361 wait_for_completion(&context.complete);
1362
1363 cleanup:
1364 for (i = 0; i < param->sglen; i++) {
1365 if (!urb[i])
1366 continue;
1367 urb[i]->dev = udev;
1368 kfree(urb[i]->setup_packet);
1369 simple_free_urb(urb[i]);
1370 }
1371 kfree(urb);
1372 return context.status;
1373 }
1374 #undef NUM_SUBCASES
1375
1376
1377 /*-------------------------------------------------------------------------*/
1378
1379 static void unlink1_callback(struct urb *urb)
1380 {
1381 int status = urb->status;
1382
1383 /* we "know" -EPIPE (stall) never happens */
1384 if (!status)
1385 status = usb_submit_urb(urb, GFP_ATOMIC);
1386 if (status) {
1387 urb->status = status;
1388 complete(urb->context);
1389 }
1390 }
1391
1392 static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
1393 {
1394 struct urb *urb;
1395 struct completion completion;
1396 int retval = 0;
1397
1398 init_completion(&completion);
1399 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);
1400 if (!urb)
1401 return -ENOMEM;
1402 urb->context = &completion;
1403 urb->complete = unlink1_callback;
1404
1405 if (usb_pipeout(urb->pipe)) {
1406 simple_fill_buf(urb);
1407 urb->transfer_flags |= URB_ZERO_PACKET;
1408 }
1409
1410 /* keep the endpoint busy. there are lots of hc/hcd-internal
1411 * states, and testing should get to all of them over time.
1412 *
1413 * FIXME want additional tests for when endpoint is STALLing
1414 * due to errors, or is just NAKing requests.
1415 */
1416 retval = usb_submit_urb(urb, GFP_KERNEL);
1417 if (retval != 0) {
1418 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
1419 return retval;
1420 }
1421
1422 /* unlinking that should always work. variable delay tests more
1423 * hcd states and code paths, even with little other system load.
1424 */
1425 msleep(jiffies % (2 * INTERRUPT_RATE));
1426 if (async) {
1427 while (!completion_done(&completion)) {
1428 retval = usb_unlink_urb(urb);
1429
1430 if (retval == 0 && usb_pipein(urb->pipe))
1431 retval = simple_check_buf(dev, urb);
1432
1433 switch (retval) {
1434 case -EBUSY:
1435 case -EIDRM:
1436 /* we can't unlink urbs while they're completing
1437 * or if they've completed, and we haven't
1438 * resubmitted. "normal" drivers would prevent
1439 * resubmission, but since we're testing unlink
1440 * paths, we can't.
1441 */
1442 ERROR(dev, "unlink retry\n");
1443 continue;
1444 case 0:
1445 case -EINPROGRESS:
1446 break;
1447
1448 default:
1449 dev_err(&dev->intf->dev,
1450 "unlink fail %d\n", retval);
1451 return retval;
1452 }
1453
1454 break;
1455 }
1456 } else
1457 usb_kill_urb(urb);
1458
1459 wait_for_completion(&completion);
1460 retval = urb->status;
1461 simple_free_urb(urb);
1462
1463 if (async)
1464 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1465 else
1466 return (retval == -ENOENT || retval == -EPERM) ?
1467 0 : retval - 2000;
1468 }
1469
1470 static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
1471 {
1472 int retval = 0;
1473
1474 /* test sync and async paths */
1475 retval = unlink1(dev, pipe, len, 1);
1476 if (!retval)
1477 retval = unlink1(dev, pipe, len, 0);
1478 return retval;
1479 }
1480
1481 /*-------------------------------------------------------------------------*/
1482
1483 struct queued_ctx {
1484 struct completion complete;
1485 atomic_t pending;
1486 unsigned num;
1487 int status;
1488 struct urb **urbs;
1489 };
1490
1491 static void unlink_queued_callback(struct urb *urb)
1492 {
1493 int status = urb->status;
1494 struct queued_ctx *ctx = urb->context;
1495
1496 if (ctx->status)
1497 goto done;
1498 if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {
1499 if (status == -ECONNRESET)
1500 goto done;
1501 /* What error should we report if the URB completed normally? */
1502 }
1503 if (status != 0)
1504 ctx->status = status;
1505
1506 done:
1507 if (atomic_dec_and_test(&ctx->pending))
1508 complete(&ctx->complete);
1509 }
1510
1511 static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
1512 unsigned size)
1513 {
1514 struct queued_ctx ctx;
1515 struct usb_device *udev = testdev_to_usbdev(dev);
1516 void *buf;
1517 dma_addr_t buf_dma;
1518 int i;
1519 int retval = -ENOMEM;
1520
1521 init_completion(&ctx.complete);
1522 atomic_set(&ctx.pending, 1); /* One more than the actual value */
1523 ctx.num = num;
1524 ctx.status = 0;
1525
1526 buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma);
1527 if (!buf)
1528 return retval;
1529 memset(buf, 0, size);
1530
1531 /* Allocate and init the urbs we'll queue */
1532 ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);
1533 if (!ctx.urbs)
1534 goto free_buf;
1535 for (i = 0; i < num; i++) {
1536 ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1537 if (!ctx.urbs[i])
1538 goto free_urbs;
1539 usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size,
1540 unlink_queued_callback, &ctx);
1541 ctx.urbs[i]->transfer_dma = buf_dma;
1542 ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
1543
1544 if (usb_pipeout(ctx.urbs[i]->pipe)) {
1545 simple_fill_buf(ctx.urbs[i]);
1546 ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
1547 }
1548 }
1549
1550 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
1551 for (i = 0; i < num; i++) {
1552 atomic_inc(&ctx.pending);
1553 retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL);
1554 if (retval != 0) {
1555 dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n",
1556 i, retval);
1557 atomic_dec(&ctx.pending);
1558 ctx.status = retval;
1559 break;
1560 }
1561 }
1562 if (i == num) {
1563 usb_unlink_urb(ctx.urbs[num - 4]);
1564 usb_unlink_urb(ctx.urbs[num - 2]);
1565 } else {
1566 while (--i >= 0)
1567 usb_unlink_urb(ctx.urbs[i]);
1568 }
1569
1570 if (atomic_dec_and_test(&ctx.pending)) /* The extra count */
1571 complete(&ctx.complete);
1572 wait_for_completion(&ctx.complete);
1573 retval = ctx.status;
1574
1575 free_urbs:
1576 for (i = 0; i < num; i++)
1577 usb_free_urb(ctx.urbs[i]);
1578 kfree(ctx.urbs);
1579 free_buf:
1580 usb_free_coherent(udev, size, buf, buf_dma);
1581 return retval;
1582 }
1583
1584 /*-------------------------------------------------------------------------*/
1585
1586 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1587 {
1588 int retval;
1589 u16 status;
1590
1591 /* shouldn't look or act halted */
1592 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1593 if (retval < 0) {
1594 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1595 ep, retval);
1596 return retval;
1597 }
1598 if (status != 0) {
1599 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
1600 return -EINVAL;
1601 }
1602 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
1603 if (retval != 0)
1604 return -EINVAL;
1605 return 0;
1606 }
1607
1608 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
1609 {
1610 int retval;
1611 u16 status;
1612
1613 /* should look and act halted */
1614 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
1615 if (retval < 0) {
1616 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1617 ep, retval);
1618 return retval;
1619 }
1620 if (status != 1) {
1621 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
1622 return -EINVAL;
1623 }
1624 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
1625 if (retval != -EPIPE)
1626 return -EINVAL;
1627 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
1628 if (retval != -EPIPE)
1629 return -EINVAL;
1630 return 0;
1631 }
1632
1633 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
1634 {
1635 int retval;
1636
1637 /* shouldn't look or act halted now */
1638 retval = verify_not_halted(tdev, ep, urb);
1639 if (retval < 0)
1640 return retval;
1641
1642 /* set halt (protocol test only), verify it worked */
1643 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
1644 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1645 USB_ENDPOINT_HALT, ep,
1646 NULL, 0, USB_CTRL_SET_TIMEOUT);
1647 if (retval < 0) {
1648 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
1649 return retval;
1650 }
1651 retval = verify_halted(tdev, ep, urb);
1652 if (retval < 0) {
1653 int ret;
1654
1655 /* clear halt anyways, else further tests will fail */
1656 ret = usb_clear_halt(urb->dev, urb->pipe);
1657 if (ret)
1658 ERROR(tdev, "ep %02x couldn't clear halt, %d\n",
1659 ep, ret);
1660
1661 return retval;
1662 }
1663
1664 /* clear halt (tests API + protocol), verify it worked */
1665 retval = usb_clear_halt(urb->dev, urb->pipe);
1666 if (retval < 0) {
1667 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
1668 return retval;
1669 }
1670 retval = verify_not_halted(tdev, ep, urb);
1671 if (retval < 0)
1672 return retval;
1673
1674 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1675
1676 return 0;
1677 }
1678
1679 static int halt_simple(struct usbtest_dev *dev)
1680 {
1681 int ep;
1682 int retval = 0;
1683 struct urb *urb;
1684 struct usb_device *udev = testdev_to_usbdev(dev);
1685
1686 if (udev->speed == USB_SPEED_SUPER)
1687 urb = simple_alloc_urb(udev, 0, 1024, 0);
1688 else
1689 urb = simple_alloc_urb(udev, 0, 512, 0);
1690 if (urb == NULL)
1691 return -ENOMEM;
1692
1693 if (dev->in_pipe) {
1694 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
1695 urb->pipe = dev->in_pipe;
1696 retval = test_halt(dev, ep, urb);
1697 if (retval < 0)
1698 goto done;
1699 }
1700
1701 if (dev->out_pipe) {
1702 ep = usb_pipeendpoint(dev->out_pipe);
1703 urb->pipe = dev->out_pipe;
1704 retval = test_halt(dev, ep, urb);
1705 }
1706 done:
1707 simple_free_urb(urb);
1708 return retval;
1709 }
1710
1711 /*-------------------------------------------------------------------------*/
1712
1713 /* Control OUT tests use the vendor control requests from Intel's
1714 * USB 2.0 compliance test device: write a buffer, read it back.
1715 *
1716 * Intel's spec only _requires_ that it work for one packet, which
1717 * is pretty weak. Some HCDs place limits here; most devices will
1718 * need to be able to handle more than one OUT data packet. We'll
1719 * try whatever we're told to try.
1720 */
1721 static int ctrl_out(struct usbtest_dev *dev,
1722 unsigned count, unsigned length, unsigned vary, unsigned offset)
1723 {
1724 unsigned i, j, len;
1725 int retval;
1726 u8 *buf;
1727 char *what = "?";
1728 struct usb_device *udev;
1729
1730 if (length < 1 || length > 0xffff || vary >= length)
1731 return -EINVAL;
1732
1733 buf = kmalloc(length + offset, GFP_KERNEL);
1734 if (!buf)
1735 return -ENOMEM;
1736
1737 buf += offset;
1738 udev = testdev_to_usbdev(dev);
1739 len = length;
1740 retval = 0;
1741
1742 /* NOTE: hardware might well act differently if we pushed it
1743 * with lots back-to-back queued requests.
1744 */
1745 for (i = 0; i < count; i++) {
1746 /* write patterned data */
1747 for (j = 0; j < len; j++)
1748 buf[j] = (u8)(i + j);
1749 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
1750 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1751 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1752 if (retval != len) {
1753 what = "write";
1754 if (retval >= 0) {
1755 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
1756 retval, len);
1757 retval = -EBADMSG;
1758 }
1759 break;
1760 }
1761
1762 /* read it back -- assuming nothing intervened!! */
1763 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
1764 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1765 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1766 if (retval != len) {
1767 what = "read";
1768 if (retval >= 0) {
1769 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
1770 retval, len);
1771 retval = -EBADMSG;
1772 }
1773 break;
1774 }
1775
1776 /* fail if we can't verify */
1777 for (j = 0; j < len; j++) {
1778 if (buf[j] != (u8)(i + j)) {
1779 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
1780 j, buf[j], (u8)(i + j));
1781 retval = -EBADMSG;
1782 break;
1783 }
1784 }
1785 if (retval < 0) {
1786 what = "verify";
1787 break;
1788 }
1789
1790 len += vary;
1791
1792 /* [real world] the "zero bytes IN" case isn't really used.
1793 * hardware can easily trip up in this weird case, since its
1794 * status stage is IN, not OUT like other ep0in transfers.
1795 */
1796 if (len > length)
1797 len = realworld ? 1 : 0;
1798 }
1799
1800 if (retval < 0)
1801 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
1802 what, retval, i);
1803
1804 kfree(buf - offset);
1805 return retval;
1806 }
1807
1808 /*-------------------------------------------------------------------------*/
1809
1810 /* ISO/BULK tests ... mimics common usage
1811 * - buffer length is split into N packets (mostly maxpacket sized)
1812 * - multi-buffers according to sglen
1813 */
1814
1815 struct transfer_context {
1816 unsigned count;
1817 unsigned pending;
1818 spinlock_t lock;
1819 struct completion done;
1820 int submit_error;
1821 unsigned long errors;
1822 unsigned long packet_count;
1823 struct usbtest_dev *dev;
1824 bool is_iso;
1825 };
1826
1827 static void complicated_callback(struct urb *urb)
1828 {
1829 struct transfer_context *ctx = urb->context;
1830
1831 spin_lock(&ctx->lock);
1832 ctx->count--;
1833
1834 ctx->packet_count += urb->number_of_packets;
1835 if (urb->error_count > 0)
1836 ctx->errors += urb->error_count;
1837 else if (urb->status != 0)
1838 ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
1839 else if (urb->actual_length != urb->transfer_buffer_length)
1840 ctx->errors++;
1841 else if (check_guard_bytes(ctx->dev, urb) != 0)
1842 ctx->errors++;
1843
1844 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1845 && !ctx->submit_error) {
1846 int status = usb_submit_urb(urb, GFP_ATOMIC);
1847 switch (status) {
1848 case 0:
1849 goto done;
1850 default:
1851 dev_err(&ctx->dev->intf->dev,
1852 "iso resubmit err %d\n",
1853 status);
1854 /* FALLTHROUGH */
1855 case -ENODEV: /* disconnected */
1856 case -ESHUTDOWN: /* endpoint disabled */
1857 ctx->submit_error = 1;
1858 break;
1859 }
1860 }
1861
1862 ctx->pending--;
1863 if (ctx->pending == 0) {
1864 if (ctx->errors)
1865 dev_err(&ctx->dev->intf->dev,
1866 "iso test, %lu errors out of %lu\n",
1867 ctx->errors, ctx->packet_count);
1868 complete(&ctx->done);
1869 }
1870 done:
1871 spin_unlock(&ctx->lock);
1872 }
1873
1874 static struct urb *iso_alloc_urb(
1875 struct usb_device *udev,
1876 int pipe,
1877 struct usb_endpoint_descriptor *desc,
1878 long bytes,
1879 unsigned offset
1880 )
1881 {
1882 struct urb *urb;
1883 unsigned i, maxp, packets;
1884
1885 if (bytes < 0 || !desc)
1886 return NULL;
1887 maxp = 0x7ff & usb_endpoint_maxp(desc);
1888 maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11));
1889 packets = DIV_ROUND_UP(bytes, maxp);
1890
1891 urb = usb_alloc_urb(packets, GFP_KERNEL);
1892 if (!urb)
1893 return urb;
1894 urb->dev = udev;
1895 urb->pipe = pipe;
1896
1897 urb->number_of_packets = packets;
1898 urb->transfer_buffer_length = bytes;
1899 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
1900 GFP_KERNEL,
1901 &urb->transfer_dma);
1902 if (!urb->transfer_buffer) {
1903 usb_free_urb(urb);
1904 return NULL;
1905 }
1906 if (offset) {
1907 memset(urb->transfer_buffer, GUARD_BYTE, offset);
1908 urb->transfer_buffer += offset;
1909 urb->transfer_dma += offset;
1910 }
1911 /* For inbound transfers use guard byte so that test fails if
1912 data not correctly copied */
1913 memset(urb->transfer_buffer,
1914 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
1915 bytes);
1916
1917 for (i = 0; i < packets; i++) {
1918 /* here, only the last packet will be short */
1919 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
1920 bytes -= urb->iso_frame_desc[i].length;
1921
1922 urb->iso_frame_desc[i].offset = maxp * i;
1923 }
1924
1925 urb->complete = complicated_callback;
1926 /* urb->context = SET BY CALLER */
1927 urb->interval = 1 << (desc->bInterval - 1);
1928 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1929 return urb;
1930 }
1931
1932 static int
1933 test_queue(struct usbtest_dev *dev, struct usbtest_param *param,
1934 int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
1935 {
1936 struct transfer_context context;
1937 struct usb_device *udev;
1938 unsigned i;
1939 unsigned long packets = 0;
1940 int status = 0;
1941 struct urb *urbs[param->sglen];
1942
1943 memset(&context, 0, sizeof(context));
1944 context.count = param->iterations * param->sglen;
1945 context.dev = dev;
1946 context.is_iso = !!desc;
1947 init_completion(&context.done);
1948 spin_lock_init(&context.lock);
1949
1950 udev = testdev_to_usbdev(dev);
1951
1952 for (i = 0; i < param->sglen; i++) {
1953 if (context.is_iso)
1954 urbs[i] = iso_alloc_urb(udev, pipe, desc,
1955 param->length, offset);
1956 else
1957 urbs[i] = complicated_alloc_urb(udev, pipe,
1958 param->length, 0);
1959
1960 if (!urbs[i]) {
1961 status = -ENOMEM;
1962 goto fail;
1963 }
1964 packets += urbs[i]->number_of_packets;
1965 urbs[i]->context = &context;
1966 }
1967 packets *= param->iterations;
1968
1969 if (context.is_iso) {
1970 dev_info(&dev->intf->dev,
1971 "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
1972 1 << (desc->bInterval - 1),
1973 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1974 usb_endpoint_maxp(desc) & 0x7ff,
1975 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)));
1976
1977 dev_info(&dev->intf->dev,
1978 "total %lu msec (%lu packets)\n",
1979 (packets * (1 << (desc->bInterval - 1)))
1980 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
1981 packets);
1982 }
1983
1984 spin_lock_irq(&context.lock);
1985 for (i = 0; i < param->sglen; i++) {
1986 ++context.pending;
1987 status = usb_submit_urb(urbs[i], GFP_ATOMIC);
1988 if (status < 0) {
1989 ERROR(dev, "submit iso[%d], error %d\n", i, status);
1990 if (i == 0) {
1991 spin_unlock_irq(&context.lock);
1992 goto fail;
1993 }
1994
1995 simple_free_urb(urbs[i]);
1996 urbs[i] = NULL;
1997 context.pending--;
1998 context.submit_error = 1;
1999 break;
2000 }
2001 }
2002 spin_unlock_irq(&context.lock);
2003
2004 wait_for_completion(&context.done);
2005
2006 for (i = 0; i < param->sglen; i++) {
2007 if (urbs[i])
2008 simple_free_urb(urbs[i]);
2009 }
2010 /*
2011 * Isochronous transfers are expected to fail sometimes. As an
2012 * arbitrary limit, we will report an error if any submissions
2013 * fail or if the transfer failure rate is > 10%.
2014 */
2015 if (status != 0)
2016 ;
2017 else if (context.submit_error)
2018 status = -EACCES;
2019 else if (context.errors >
2020 (context.is_iso ? context.packet_count / 10 : 0))
2021 status = -EIO;
2022 return status;
2023
2024 fail:
2025 for (i = 0; i < param->sglen; i++) {
2026 if (urbs[i])
2027 simple_free_urb(urbs[i]);
2028 }
2029 return status;
2030 }
2031
2032 static int test_unaligned_bulk(
2033 struct usbtest_dev *tdev,
2034 int pipe,
2035 unsigned length,
2036 int iterations,
2037 unsigned transfer_flags,
2038 const char *label)
2039 {
2040 int retval;
2041 struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
2042 pipe, length, transfer_flags, 1, 0, simple_callback);
2043
2044 if (!urb)
2045 return -ENOMEM;
2046
2047 retval = simple_io(tdev, urb, iterations, 0, 0, label);
2048 simple_free_urb(urb);
2049 return retval;
2050 }
2051
2052 /*-------------------------------------------------------------------------*/
2053
2054 /* We only have this one interface to user space, through usbfs.
2055 * User mode code can scan usbfs to find N different devices (maybe on
2056 * different busses) to use when testing, and allocate one thread per
2057 * test. So discovery is simplified, and we have no device naming issues.
2058 *
2059 * Don't use these only as stress/load tests. Use them along with with
2060 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
2061 * video capture, and so on. Run different tests at different times, in
2062 * different sequences. Nothing here should interact with other devices,
2063 * except indirectly by consuming USB bandwidth and CPU resources for test
2064 * threads and request completion. But the only way to know that for sure
2065 * is to test when HC queues are in use by many devices.
2066 *
2067 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
2068 * it locks out usbcore in certain code paths. Notably, if you disconnect
2069 * the device-under-test, hub_wq will wait block forever waiting for the
2070 * ioctl to complete ... so that usb_disconnect() can abort the pending
2071 * urbs and then call usbtest_disconnect(). To abort a test, you're best
2072 * off just killing the userspace task and waiting for it to exit.
2073 */
2074
2075 static int
2076 usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
2077 {
2078 struct usbtest_dev *dev = usb_get_intfdata(intf);
2079 struct usb_device *udev = testdev_to_usbdev(dev);
2080 struct usbtest_param *param = buf;
2081 int retval = -EOPNOTSUPP;
2082 struct urb *urb;
2083 struct scatterlist *sg;
2084 struct usb_sg_request req;
2085 struct timeval start;
2086 unsigned i;
2087
2088 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
2089
2090 pattern = mod_pattern;
2091
2092 if (code != USBTEST_REQUEST)
2093 return -EOPNOTSUPP;
2094
2095 if (param->iterations <= 0)
2096 return -EINVAL;
2097
2098 if (param->sglen > MAX_SGLEN)
2099 return -EINVAL;
2100
2101 if (mutex_lock_interruptible(&dev->lock))
2102 return -ERESTARTSYS;
2103
2104 /* FIXME: What if a system sleep starts while a test is running? */
2105
2106 /* some devices, like ez-usb default devices, need a non-default
2107 * altsetting to have any active endpoints. some tests change
2108 * altsettings; force a default so most tests don't need to check.
2109 */
2110 if (dev->info->alt >= 0) {
2111 int res;
2112
2113 if (intf->altsetting->desc.bInterfaceNumber) {
2114 mutex_unlock(&dev->lock);
2115 return -ENODEV;
2116 }
2117 res = set_altsetting(dev, dev->info->alt);
2118 if (res) {
2119 dev_err(&intf->dev,
2120 "set altsetting to %d failed, %d\n",
2121 dev->info->alt, res);
2122 mutex_unlock(&dev->lock);
2123 return res;
2124 }
2125 }
2126
2127 /*
2128 * Just a bunch of test cases that every HCD is expected to handle.
2129 *
2130 * Some may need specific firmware, though it'd be good to have
2131 * one firmware image to handle all the test cases.
2132 *
2133 * FIXME add more tests! cancel requests, verify the data, control
2134 * queueing, concurrent read+write threads, and so on.
2135 */
2136 do_gettimeofday(&start);
2137 switch (param->test_num) {
2138
2139 case 0:
2140 dev_info(&intf->dev, "TEST 0: NOP\n");
2141 retval = 0;
2142 break;
2143
2144 /* Simple non-queued bulk I/O tests */
2145 case 1:
2146 if (dev->out_pipe == 0)
2147 break;
2148 dev_info(&intf->dev,
2149 "TEST 1: write %d bytes %u times\n",
2150 param->length, param->iterations);
2151 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2152 if (!urb) {
2153 retval = -ENOMEM;
2154 break;
2155 }
2156 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2157 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
2158 simple_free_urb(urb);
2159 break;
2160 case 2:
2161 if (dev->in_pipe == 0)
2162 break;
2163 dev_info(&intf->dev,
2164 "TEST 2: read %d bytes %u times\n",
2165 param->length, param->iterations);
2166 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2167 if (!urb) {
2168 retval = -ENOMEM;
2169 break;
2170 }
2171 /* FIRMWARE: bulk source (maybe generates short writes) */
2172 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
2173 simple_free_urb(urb);
2174 break;
2175 case 3:
2176 if (dev->out_pipe == 0 || param->vary == 0)
2177 break;
2178 dev_info(&intf->dev,
2179 "TEST 3: write/%d 0..%d bytes %u times\n",
2180 param->vary, param->length, param->iterations);
2181 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
2182 if (!urb) {
2183 retval = -ENOMEM;
2184 break;
2185 }
2186 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2187 retval = simple_io(dev, urb, param->iterations, param->vary,
2188 0, "test3");
2189 simple_free_urb(urb);
2190 break;
2191 case 4:
2192 if (dev->in_pipe == 0 || param->vary == 0)
2193 break;
2194 dev_info(&intf->dev,
2195 "TEST 4: read/%d 0..%d bytes %u times\n",
2196 param->vary, param->length, param->iterations);
2197 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
2198 if (!urb) {
2199 retval = -ENOMEM;
2200 break;
2201 }
2202 /* FIRMWARE: bulk source (maybe generates short writes) */
2203 retval = simple_io(dev, urb, param->iterations, param->vary,
2204 0, "test4");
2205 simple_free_urb(urb);
2206 break;
2207
2208 /* Queued bulk I/O tests */
2209 case 5:
2210 if (dev->out_pipe == 0 || param->sglen == 0)
2211 break;
2212 dev_info(&intf->dev,
2213 "TEST 5: write %d sglists %d entries of %d bytes\n",
2214 param->iterations,
2215 param->sglen, param->length);
2216 sg = alloc_sglist(param->sglen, param->length,
2217 0, dev, dev->out_pipe);
2218 if (!sg) {
2219 retval = -ENOMEM;
2220 break;
2221 }
2222 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2223 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2224 &req, sg, param->sglen);
2225 free_sglist(sg, param->sglen);
2226 break;
2227
2228 case 6:
2229 if (dev->in_pipe == 0 || param->sglen == 0)
2230 break;
2231 dev_info(&intf->dev,
2232 "TEST 6: read %d sglists %d entries of %d bytes\n",
2233 param->iterations,
2234 param->sglen, param->length);
2235 sg = alloc_sglist(param->sglen, param->length,
2236 0, dev, dev->in_pipe);
2237 if (!sg) {
2238 retval = -ENOMEM;
2239 break;
2240 }
2241 /* FIRMWARE: bulk source (maybe generates short writes) */
2242 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2243 &req, sg, param->sglen);
2244 free_sglist(sg, param->sglen);
2245 break;
2246 case 7:
2247 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
2248 break;
2249 dev_info(&intf->dev,
2250 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
2251 param->vary, param->iterations,
2252 param->sglen, param->length);
2253 sg = alloc_sglist(param->sglen, param->length,
2254 param->vary, dev, dev->out_pipe);
2255 if (!sg) {
2256 retval = -ENOMEM;
2257 break;
2258 }
2259 /* FIRMWARE: bulk sink (maybe accepts short writes) */
2260 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
2261 &req, sg, param->sglen);
2262 free_sglist(sg, param->sglen);
2263 break;
2264 case 8:
2265 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
2266 break;
2267 dev_info(&intf->dev,
2268 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
2269 param->vary, param->iterations,
2270 param->sglen, param->length);
2271 sg = alloc_sglist(param->sglen, param->length,
2272 param->vary, dev, dev->in_pipe);
2273 if (!sg) {
2274 retval = -ENOMEM;
2275 break;
2276 }
2277 /* FIRMWARE: bulk source (maybe generates short writes) */
2278 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
2279 &req, sg, param->sglen);
2280 free_sglist(sg, param->sglen);
2281 break;
2282
2283 /* non-queued sanity tests for control (chapter 9 subset) */
2284 case 9:
2285 retval = 0;
2286 dev_info(&intf->dev,
2287 "TEST 9: ch9 (subset) control tests, %d times\n",
2288 param->iterations);
2289 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2290 retval = ch9_postconfig(dev);
2291 if (retval)
2292 dev_err(&intf->dev, "ch9 subset failed, "
2293 "iterations left %d\n", i);
2294 break;
2295
2296 /* queued control messaging */
2297 case 10:
2298 retval = 0;
2299 dev_info(&intf->dev,
2300 "TEST 10: queue %d control calls, %d times\n",
2301 param->sglen,
2302 param->iterations);
2303 retval = test_ctrl_queue(dev, param);
2304 break;
2305
2306 /* simple non-queued unlinks (ring with one urb) */
2307 case 11:
2308 if (dev->in_pipe == 0 || !param->length)
2309 break;
2310 retval = 0;
2311 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
2312 param->iterations, param->length);
2313 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2314 retval = unlink_simple(dev, dev->in_pipe,
2315 param->length);
2316 if (retval)
2317 dev_err(&intf->dev, "unlink reads failed %d, "
2318 "iterations left %d\n", retval, i);
2319 break;
2320 case 12:
2321 if (dev->out_pipe == 0 || !param->length)
2322 break;
2323 retval = 0;
2324 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
2325 param->iterations, param->length);
2326 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2327 retval = unlink_simple(dev, dev->out_pipe,
2328 param->length);
2329 if (retval)
2330 dev_err(&intf->dev, "unlink writes failed %d, "
2331 "iterations left %d\n", retval, i);
2332 break;
2333
2334 /* ep halt tests */
2335 case 13:
2336 if (dev->out_pipe == 0 && dev->in_pipe == 0)
2337 break;
2338 retval = 0;
2339 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
2340 param->iterations);
2341 for (i = param->iterations; retval == 0 && i--; /* NOP */)
2342 retval = halt_simple(dev);
2343
2344 if (retval)
2345 ERROR(dev, "halts failed, iterations left %d\n", i);
2346 break;
2347
2348 /* control write tests */
2349 case 14:
2350 if (!dev->info->ctrl_out)
2351 break;
2352 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
2353 param->iterations,
2354 realworld ? 1 : 0, param->length,
2355 param->vary);
2356 retval = ctrl_out(dev, param->iterations,
2357 param->length, param->vary, 0);
2358 break;
2359
2360 /* iso write tests */
2361 case 15:
2362 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2363 break;
2364 dev_info(&intf->dev,
2365 "TEST 15: write %d iso, %d entries of %d bytes\n",
2366 param->iterations,
2367 param->sglen, param->length);
2368 /* FIRMWARE: iso sink */
2369 retval = test_queue(dev, param,
2370 dev->out_iso_pipe, dev->iso_out, 0);
2371 break;
2372
2373 /* iso read tests */
2374 case 16:
2375 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2376 break;
2377 dev_info(&intf->dev,
2378 "TEST 16: read %d iso, %d entries of %d bytes\n",
2379 param->iterations,
2380 param->sglen, param->length);
2381 /* FIRMWARE: iso source */
2382 retval = test_queue(dev, param,
2383 dev->in_iso_pipe, dev->iso_in, 0);
2384 break;
2385
2386 /* FIXME scatterlist cancel (needs helper thread) */
2387
2388 /* Tests for bulk I/O using DMA mapping by core and odd address */
2389 case 17:
2390 if (dev->out_pipe == 0)
2391 break;
2392 dev_info(&intf->dev,
2393 "TEST 17: write odd addr %d bytes %u times core map\n",
2394 param->length, param->iterations);
2395
2396 retval = test_unaligned_bulk(
2397 dev, dev->out_pipe,
2398 param->length, param->iterations,
2399 0, "test17");
2400 break;
2401
2402 case 18:
2403 if (dev->in_pipe == 0)
2404 break;
2405 dev_info(&intf->dev,
2406 "TEST 18: read odd addr %d bytes %u times core map\n",
2407 param->length, param->iterations);
2408
2409 retval = test_unaligned_bulk(
2410 dev, dev->in_pipe,
2411 param->length, param->iterations,
2412 0, "test18");
2413 break;
2414
2415 /* Tests for bulk I/O using premapped coherent buffer and odd address */
2416 case 19:
2417 if (dev->out_pipe == 0)
2418 break;
2419 dev_info(&intf->dev,
2420 "TEST 19: write odd addr %d bytes %u times premapped\n",
2421 param->length, param->iterations);
2422
2423 retval = test_unaligned_bulk(
2424 dev, dev->out_pipe,
2425 param->length, param->iterations,
2426 URB_NO_TRANSFER_DMA_MAP, "test19");
2427 break;
2428
2429 case 20:
2430 if (dev->in_pipe == 0)
2431 break;
2432 dev_info(&intf->dev,
2433 "TEST 20: read odd addr %d bytes %u times premapped\n",
2434 param->length, param->iterations);
2435
2436 retval = test_unaligned_bulk(
2437 dev, dev->in_pipe,
2438 param->length, param->iterations,
2439 URB_NO_TRANSFER_DMA_MAP, "test20");
2440 break;
2441
2442 /* control write tests with unaligned buffer */
2443 case 21:
2444 if (!dev->info->ctrl_out)
2445 break;
2446 dev_info(&intf->dev,
2447 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
2448 param->iterations,
2449 realworld ? 1 : 0, param->length,
2450 param->vary);
2451 retval = ctrl_out(dev, param->iterations,
2452 param->length, param->vary, 1);
2453 break;
2454
2455 /* unaligned iso tests */
2456 case 22:
2457 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2458 break;
2459 dev_info(&intf->dev,
2460 "TEST 22: write %d iso odd, %d entries of %d bytes\n",
2461 param->iterations,
2462 param->sglen, param->length);
2463 retval = test_queue(dev, param,
2464 dev->out_iso_pipe, dev->iso_out, 1);
2465 break;
2466
2467 case 23:
2468 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2469 break;
2470 dev_info(&intf->dev,
2471 "TEST 23: read %d iso odd, %d entries of %d bytes\n",
2472 param->iterations,
2473 param->sglen, param->length);
2474 retval = test_queue(dev, param,
2475 dev->in_iso_pipe, dev->iso_in, 1);
2476 break;
2477
2478 /* unlink URBs from a bulk-OUT queue */
2479 case 24:
2480 if (dev->out_pipe == 0 || !param->length || param->sglen < 4)
2481 break;
2482 retval = 0;
2483 dev_info(&intf->dev, "TEST 24: unlink from %d queues of "
2484 "%d %d-byte writes\n",
2485 param->iterations, param->sglen, param->length);
2486 for (i = param->iterations; retval == 0 && i > 0; --i) {
2487 retval = unlink_queued(dev, dev->out_pipe,
2488 param->sglen, param->length);
2489 if (retval) {
2490 dev_err(&intf->dev,
2491 "unlink queued writes failed %d, "
2492 "iterations left %d\n", retval, i);
2493 break;
2494 }
2495 }
2496 break;
2497
2498 /* Simple non-queued interrupt I/O tests */
2499 case 25:
2500 if (dev->out_int_pipe == 0)
2501 break;
2502 dev_info(&intf->dev,
2503 "TEST 25: write %d bytes %u times\n",
2504 param->length, param->iterations);
2505 urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,
2506 dev->int_out->bInterval);
2507 if (!urb) {
2508 retval = -ENOMEM;
2509 break;
2510 }
2511 /* FIRMWARE: interrupt sink (maybe accepts short writes) */
2512 retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");
2513 simple_free_urb(urb);
2514 break;
2515 case 26:
2516 if (dev->in_int_pipe == 0)
2517 break;
2518 dev_info(&intf->dev,
2519 "TEST 26: read %d bytes %u times\n",
2520 param->length, param->iterations);
2521 urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,
2522 dev->int_in->bInterval);
2523 if (!urb) {
2524 retval = -ENOMEM;
2525 break;
2526 }
2527 /* FIRMWARE: interrupt source (maybe generates short writes) */
2528 retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
2529 simple_free_urb(urb);
2530 break;
2531 case 27:
2532 /* We do performance test, so ignore data compare */
2533 if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
2534 break;
2535 dev_info(&intf->dev,
2536 "TEST 27: bulk write %dMbytes\n", (param->iterations *
2537 param->sglen * param->length) / (1024 * 1024));
2538 retval = test_queue(dev, param,
2539 dev->out_pipe, NULL, 0);
2540 break;
2541 case 28:
2542 if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
2543 break;
2544 dev_info(&intf->dev,
2545 "TEST 28: bulk read %dMbytes\n", (param->iterations *
2546 param->sglen * param->length) / (1024 * 1024));
2547 retval = test_queue(dev, param,
2548 dev->in_pipe, NULL, 0);
2549 break;
2550 }
2551 do_gettimeofday(&param->duration);
2552 param->duration.tv_sec -= start.tv_sec;
2553 param->duration.tv_usec -= start.tv_usec;
2554 if (param->duration.tv_usec < 0) {
2555 param->duration.tv_usec += 1000 * 1000;
2556 param->duration.tv_sec -= 1;
2557 }
2558 mutex_unlock(&dev->lock);
2559 return retval;
2560 }
2561
2562 /*-------------------------------------------------------------------------*/
2563
2564 static unsigned force_interrupt;
2565 module_param(force_interrupt, uint, 0);
2566 MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
2567
2568 #ifdef GENERIC
2569 static unsigned short vendor;
2570 module_param(vendor, ushort, 0);
2571 MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
2572
2573 static unsigned short product;
2574 module_param(product, ushort, 0);
2575 MODULE_PARM_DESC(product, "product code (from vendor)");
2576 #endif
2577
2578 static int
2579 usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
2580 {
2581 struct usb_device *udev;
2582 struct usbtest_dev *dev;
2583 struct usbtest_info *info;
2584 char *rtest, *wtest;
2585 char *irtest, *iwtest;
2586 char *intrtest, *intwtest;
2587
2588 udev = interface_to_usbdev(intf);
2589
2590 #ifdef GENERIC
2591 /* specify devices by module parameters? */
2592 if (id->match_flags == 0) {
2593 /* vendor match required, product match optional */
2594 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
2595 return -ENODEV;
2596 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
2597 return -ENODEV;
2598 dev_info(&intf->dev, "matched module params, "
2599 "vend=0x%04x prod=0x%04x\n",
2600 le16_to_cpu(udev->descriptor.idVendor),
2601 le16_to_cpu(udev->descriptor.idProduct));
2602 }
2603 #endif
2604
2605 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2606 if (!dev)
2607 return -ENOMEM;
2608 info = (struct usbtest_info *) id->driver_info;
2609 dev->info = info;
2610 mutex_init(&dev->lock);
2611
2612 dev->intf = intf;
2613
2614 /* cacheline-aligned scratch for i/o */
2615 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
2616 if (dev->buf == NULL) {
2617 kfree(dev);
2618 return -ENOMEM;
2619 }
2620
2621 /* NOTE this doesn't yet test the handful of difference that are
2622 * visible with high speed interrupts: bigger maxpacket (1K) and
2623 * "high bandwidth" modes (up to 3 packets/uframe).
2624 */
2625 rtest = wtest = "";
2626 irtest = iwtest = "";
2627 intrtest = intwtest = "";
2628 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
2629 if (info->ep_in) {
2630 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
2631 rtest = " intr-in";
2632 }
2633 if (info->ep_out) {
2634 dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
2635 wtest = " intr-out";
2636 }
2637 } else {
2638 if (override_alt >= 0 || info->autoconf) {
2639 int status;
2640
2641 status = get_endpoints(dev, intf);
2642 if (status < 0) {
2643 WARNING(dev, "couldn't get endpoints, %d\n",
2644 status);
2645 kfree(dev->buf);
2646 kfree(dev);
2647 return status;
2648 }
2649 /* may find bulk or ISO pipes */
2650 } else {
2651 if (info->ep_in)
2652 dev->in_pipe = usb_rcvbulkpipe(udev,
2653 info->ep_in);
2654 if (info->ep_out)
2655 dev->out_pipe = usb_sndbulkpipe(udev,
2656 info->ep_out);
2657 }
2658 if (dev->in_pipe)
2659 rtest = " bulk-in";
2660 if (dev->out_pipe)
2661 wtest = " bulk-out";
2662 if (dev->in_iso_pipe)
2663 irtest = " iso-in";
2664 if (dev->out_iso_pipe)
2665 iwtest = " iso-out";
2666 if (dev->in_int_pipe)
2667 intrtest = " int-in";
2668 if (dev->out_int_pipe)
2669 intwtest = " int-out";
2670 }
2671
2672 usb_set_intfdata(intf, dev);
2673 dev_info(&intf->dev, "%s\n", info->name);
2674 dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n",
2675 usb_speed_string(udev->speed),
2676 info->ctrl_out ? " in/out" : "",
2677 rtest, wtest,
2678 irtest, iwtest,
2679 intrtest, intwtest,
2680 info->alt >= 0 ? " (+alt)" : "");
2681 return 0;
2682 }
2683
2684 static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
2685 {
2686 return 0;
2687 }
2688
2689 static int usbtest_resume(struct usb_interface *intf)
2690 {
2691 return 0;
2692 }
2693
2694
2695 static void usbtest_disconnect(struct usb_interface *intf)
2696 {
2697 struct usbtest_dev *dev = usb_get_intfdata(intf);
2698
2699 usb_set_intfdata(intf, NULL);
2700 dev_dbg(&intf->dev, "disconnect\n");
2701 kfree(dev);
2702 }
2703
2704 /* Basic testing only needs a device that can source or sink bulk traffic.
2705 * Any device can test control transfers (default with GENERIC binding).
2706 *
2707 * Several entries work with the default EP0 implementation that's built
2708 * into EZ-USB chips. There's a default vendor ID which can be overridden
2709 * by (very) small config EEPROMS, but otherwise all these devices act
2710 * identically until firmware is loaded: only EP0 works. It turns out
2711 * to be easy to make other endpoints work, without modifying that EP0
2712 * behavior. For now, we expect that kind of firmware.
2713 */
2714
2715 /* an21xx or fx versions of ez-usb */
2716 static struct usbtest_info ez1_info = {
2717 .name = "EZ-USB device",
2718 .ep_in = 2,
2719 .ep_out = 2,
2720 .alt = 1,
2721 };
2722
2723 /* fx2 version of ez-usb */
2724 static struct usbtest_info ez2_info = {
2725 .name = "FX2 device",
2726 .ep_in = 6,
2727 .ep_out = 2,
2728 .alt = 1,
2729 };
2730
2731 /* ezusb family device with dedicated usb test firmware,
2732 */
2733 static struct usbtest_info fw_info = {
2734 .name = "usb test device",
2735 .ep_in = 2,
2736 .ep_out = 2,
2737 .alt = 1,
2738 .autoconf = 1, /* iso and ctrl_out need autoconf */
2739 .ctrl_out = 1,
2740 .iso = 1, /* iso_ep's are #8 in/out */
2741 };
2742
2743 /* peripheral running Linux and 'zero.c' test firmware, or
2744 * its user-mode cousin. different versions of this use
2745 * different hardware with the same vendor/product codes.
2746 * host side MUST rely on the endpoint descriptors.
2747 */
2748 static struct usbtest_info gz_info = {
2749 .name = "Linux gadget zero",
2750 .autoconf = 1,
2751 .ctrl_out = 1,
2752 .iso = 1,
2753 .intr = 1,
2754 .alt = 0,
2755 };
2756
2757 static struct usbtest_info um_info = {
2758 .name = "Linux user mode test driver",
2759 .autoconf = 1,
2760 .alt = -1,
2761 };
2762
2763 static struct usbtest_info um2_info = {
2764 .name = "Linux user mode ISO test driver",
2765 .autoconf = 1,
2766 .iso = 1,
2767 .alt = -1,
2768 };
2769
2770 #ifdef IBOT2
2771 /* this is a nice source of high speed bulk data;
2772 * uses an FX2, with firmware provided in the device
2773 */
2774 static struct usbtest_info ibot2_info = {
2775 .name = "iBOT2 webcam",
2776 .ep_in = 2,
2777 .alt = -1,
2778 };
2779 #endif
2780
2781 #ifdef GENERIC
2782 /* we can use any device to test control traffic */
2783 static struct usbtest_info generic_info = {
2784 .name = "Generic USB device",
2785 .alt = -1,
2786 };
2787 #endif
2788
2789
2790 static const struct usb_device_id id_table[] = {
2791
2792 /*-------------------------------------------------------------*/
2793
2794 /* EZ-USB devices which download firmware to replace (or in our
2795 * case augment) the default device implementation.
2796 */
2797
2798 /* generic EZ-USB FX controller */
2799 { USB_DEVICE(0x0547, 0x2235),
2800 .driver_info = (unsigned long) &ez1_info,
2801 },
2802
2803 /* CY3671 development board with EZ-USB FX */
2804 { USB_DEVICE(0x0547, 0x0080),
2805 .driver_info = (unsigned long) &ez1_info,
2806 },
2807
2808 /* generic EZ-USB FX2 controller (or development board) */
2809 { USB_DEVICE(0x04b4, 0x8613),
2810 .driver_info = (unsigned long) &ez2_info,
2811 },
2812
2813 /* re-enumerated usb test device firmware */
2814 { USB_DEVICE(0xfff0, 0xfff0),
2815 .driver_info = (unsigned long) &fw_info,
2816 },
2817
2818 /* "Gadget Zero" firmware runs under Linux */
2819 { USB_DEVICE(0x0525, 0xa4a0),
2820 .driver_info = (unsigned long) &gz_info,
2821 },
2822
2823 /* so does a user-mode variant */
2824 { USB_DEVICE(0x0525, 0xa4a4),
2825 .driver_info = (unsigned long) &um_info,
2826 },
2827
2828 /* ... and a user-mode variant that talks iso */
2829 { USB_DEVICE(0x0525, 0xa4a3),
2830 .driver_info = (unsigned long) &um2_info,
2831 },
2832
2833 #ifdef KEYSPAN_19Qi
2834 /* Keyspan 19qi uses an21xx (original EZ-USB) */
2835 /* this does not coexist with the real Keyspan 19qi driver! */
2836 { USB_DEVICE(0x06cd, 0x010b),
2837 .driver_info = (unsigned long) &ez1_info,
2838 },
2839 #endif
2840
2841 /*-------------------------------------------------------------*/
2842
2843 #ifdef IBOT2
2844 /* iBOT2 makes a nice source of high speed bulk-in data */
2845 /* this does not coexist with a real iBOT2 driver! */
2846 { USB_DEVICE(0x0b62, 0x0059),
2847 .driver_info = (unsigned long) &ibot2_info,
2848 },
2849 #endif
2850
2851 /*-------------------------------------------------------------*/
2852
2853 #ifdef GENERIC
2854 /* module params can specify devices to use for control tests */
2855 { .driver_info = (unsigned long) &generic_info, },
2856 #endif
2857
2858 /*-------------------------------------------------------------*/
2859
2860 { }
2861 };
2862 MODULE_DEVICE_TABLE(usb, id_table);
2863
2864 static struct usb_driver usbtest_driver = {
2865 .name = "usbtest",
2866 .id_table = id_table,
2867 .probe = usbtest_probe,
2868 .unlocked_ioctl = usbtest_ioctl,
2869 .disconnect = usbtest_disconnect,
2870 .suspend = usbtest_suspend,
2871 .resume = usbtest_resume,
2872 };
2873
2874 /*-------------------------------------------------------------------------*/
2875
2876 static int __init usbtest_init(void)
2877 {
2878 #ifdef GENERIC
2879 if (vendor)
2880 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
2881 #endif
2882 return usb_register(&usbtest_driver);
2883 }
2884 module_init(usbtest_init);
2885
2886 static void __exit usbtest_exit(void)
2887 {
2888 usb_deregister(&usbtest_driver);
2889 }
2890 module_exit(usbtest_exit);
2891
2892 MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2893 MODULE_LICENSE("GPL");
2894
Linux with added FPC-III support