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1da177e4 LT |
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> | |
378f058c | 8 | #include <linux/scatterlist.h> |
1cfab028 | 9 | #include <linux/mutex.h> |
1da177e4 LT |
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; | |
1cfab028 | 68 | struct mutex lock; |
1da177e4 LT |
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 xprintk(tdev,level,fmt,args...) \ | |
83 | dev_printk(level , &(tdev)->intf->dev , fmt , ## args) | |
84 | ||
85 | #ifdef DEBUG | |
86 | #define DBG(dev,fmt,args...) \ | |
87 | xprintk(dev , KERN_DEBUG , fmt , ## args) | |
88 | #else | |
89 | #define DBG(dev,fmt,args...) \ | |
90 | do { } while (0) | |
91 | #endif /* DEBUG */ | |
92 | ||
93 | #ifdef VERBOSE | |
94 | #define VDBG DBG | |
95 | #else | |
96 | #define VDBG(dev,fmt,args...) \ | |
97 | do { } while (0) | |
98 | #endif /* VERBOSE */ | |
99 | ||
100 | #define ERROR(dev,fmt,args...) \ | |
101 | xprintk(dev , KERN_ERR , fmt , ## args) | |
102 | #define WARN(dev,fmt,args...) \ | |
103 | xprintk(dev , KERN_WARNING , fmt , ## args) | |
104 | #define INFO(dev,fmt,args...) \ | |
105 | xprintk(dev , KERN_INFO , fmt , ## args) | |
106 | ||
107 | /*-------------------------------------------------------------------------*/ | |
108 | ||
109 | static int | |
110 | get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf) | |
111 | { | |
112 | int tmp; | |
113 | struct usb_host_interface *alt; | |
114 | struct usb_host_endpoint *in, *out; | |
115 | struct usb_host_endpoint *iso_in, *iso_out; | |
116 | struct usb_device *udev; | |
117 | ||
118 | for (tmp = 0; tmp < intf->num_altsetting; tmp++) { | |
119 | unsigned ep; | |
120 | ||
121 | in = out = NULL; | |
122 | iso_in = iso_out = NULL; | |
123 | alt = intf->altsetting + tmp; | |
124 | ||
125 | /* take the first altsetting with in-bulk + out-bulk; | |
126 | * ignore other endpoints and altsetttings. | |
127 | */ | |
128 | for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { | |
129 | struct usb_host_endpoint *e; | |
130 | ||
131 | e = alt->endpoint + ep; | |
132 | switch (e->desc.bmAttributes) { | |
133 | case USB_ENDPOINT_XFER_BULK: | |
134 | break; | |
135 | case USB_ENDPOINT_XFER_ISOC: | |
136 | if (dev->info->iso) | |
137 | goto try_iso; | |
138 | // FALLTHROUGH | |
139 | default: | |
140 | continue; | |
141 | } | |
4d823dd2 | 142 | if (usb_endpoint_dir_in(&e->desc)) { |
1da177e4 LT |
143 | if (!in) |
144 | in = e; | |
145 | } else { | |
146 | if (!out) | |
147 | out = e; | |
148 | } | |
149 | continue; | |
150 | try_iso: | |
4d823dd2 | 151 | if (usb_endpoint_dir_in(&e->desc)) { |
1da177e4 LT |
152 | if (!iso_in) |
153 | iso_in = e; | |
154 | } else { | |
155 | if (!iso_out) | |
156 | iso_out = e; | |
157 | } | |
158 | } | |
159 | if ((in && out) || (iso_in && iso_out)) | |
160 | goto found; | |
161 | } | |
162 | return -EINVAL; | |
163 | ||
164 | found: | |
165 | udev = testdev_to_usbdev (dev); | |
166 | if (alt->desc.bAlternateSetting != 0) { | |
167 | tmp = usb_set_interface (udev, | |
168 | alt->desc.bInterfaceNumber, | |
169 | alt->desc.bAlternateSetting); | |
170 | if (tmp < 0) | |
171 | return tmp; | |
172 | } | |
173 | ||
174 | if (in) { | |
175 | dev->in_pipe = usb_rcvbulkpipe (udev, | |
176 | in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); | |
177 | dev->out_pipe = usb_sndbulkpipe (udev, | |
178 | out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); | |
179 | } | |
180 | if (iso_in) { | |
181 | dev->iso_in = &iso_in->desc; | |
182 | dev->in_iso_pipe = usb_rcvisocpipe (udev, | |
183 | iso_in->desc.bEndpointAddress | |
184 | & USB_ENDPOINT_NUMBER_MASK); | |
185 | dev->iso_out = &iso_out->desc; | |
186 | dev->out_iso_pipe = usb_sndisocpipe (udev, | |
187 | iso_out->desc.bEndpointAddress | |
188 | & USB_ENDPOINT_NUMBER_MASK); | |
189 | } | |
190 | return 0; | |
191 | } | |
192 | ||
193 | /*-------------------------------------------------------------------------*/ | |
194 | ||
195 | /* Support for testing basic non-queued I/O streams. | |
196 | * | |
197 | * These just package urbs as requests that can be easily canceled. | |
198 | * Each urb's data buffer is dynamically allocated; callers can fill | |
199 | * them with non-zero test data (or test for it) when appropriate. | |
200 | */ | |
201 | ||
7d12e780 | 202 | static void simple_callback (struct urb *urb) |
1da177e4 LT |
203 | { |
204 | complete ((struct completion *) urb->context); | |
205 | } | |
206 | ||
207 | static struct urb *simple_alloc_urb ( | |
208 | struct usb_device *udev, | |
209 | int pipe, | |
210 | unsigned long bytes | |
211 | ) | |
212 | { | |
213 | struct urb *urb; | |
214 | ||
215 | if (bytes < 0) | |
216 | return NULL; | |
e94b1766 | 217 | urb = usb_alloc_urb (0, GFP_KERNEL); |
1da177e4 LT |
218 | if (!urb) |
219 | return urb; | |
220 | usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); | |
221 | urb->interval = (udev->speed == USB_SPEED_HIGH) | |
222 | ? (INTERRUPT_RATE << 3) | |
223 | : INTERRUPT_RATE; | |
224 | urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
225 | if (usb_pipein (pipe)) | |
226 | urb->transfer_flags |= URB_SHORT_NOT_OK; | |
e94b1766 | 227 | urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, |
1da177e4 LT |
228 | &urb->transfer_dma); |
229 | if (!urb->transfer_buffer) { | |
230 | usb_free_urb (urb); | |
231 | urb = NULL; | |
232 | } else | |
233 | memset (urb->transfer_buffer, 0, bytes); | |
234 | return urb; | |
235 | } | |
236 | ||
237 | static unsigned pattern = 0; | |
238 | module_param (pattern, uint, S_IRUGO); | |
239 | // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)"); | |
240 | ||
241 | static inline void simple_fill_buf (struct urb *urb) | |
242 | { | |
243 | unsigned i; | |
244 | u8 *buf = urb->transfer_buffer; | |
245 | unsigned len = urb->transfer_buffer_length; | |
246 | ||
247 | switch (pattern) { | |
248 | default: | |
249 | // FALLTHROUGH | |
250 | case 0: | |
251 | memset (buf, 0, len); | |
252 | break; | |
253 | case 1: /* mod63 */ | |
254 | for (i = 0; i < len; i++) | |
255 | *buf++ = (u8) (i % 63); | |
256 | break; | |
257 | } | |
258 | } | |
259 | ||
260 | static inline int simple_check_buf (struct urb *urb) | |
261 | { | |
262 | unsigned i; | |
263 | u8 expected; | |
264 | u8 *buf = urb->transfer_buffer; | |
265 | unsigned len = urb->actual_length; | |
266 | ||
267 | for (i = 0; i < len; i++, buf++) { | |
268 | switch (pattern) { | |
269 | /* all-zeroes has no synchronization issues */ | |
270 | case 0: | |
271 | expected = 0; | |
272 | break; | |
273 | /* mod63 stays in sync with short-terminated transfers, | |
274 | * or otherwise when host and gadget agree on how large | |
275 | * each usb transfer request should be. resync is done | |
276 | * with set_interface or set_config. | |
277 | */ | |
278 | case 1: /* mod63 */ | |
279 | expected = i % 63; | |
280 | break; | |
281 | /* always fail unsupported patterns */ | |
282 | default: | |
283 | expected = !*buf; | |
284 | break; | |
285 | } | |
286 | if (*buf == expected) | |
287 | continue; | |
288 | dbg ("buf[%d] = %d (not %d)", i, *buf, expected); | |
289 | return -EINVAL; | |
290 | } | |
291 | return 0; | |
292 | } | |
293 | ||
294 | static void simple_free_urb (struct urb *urb) | |
295 | { | |
296 | usb_buffer_free (urb->dev, urb->transfer_buffer_length, | |
297 | urb->transfer_buffer, urb->transfer_dma); | |
298 | usb_free_urb (urb); | |
299 | } | |
300 | ||
301 | static int simple_io ( | |
302 | struct urb *urb, | |
303 | int iterations, | |
304 | int vary, | |
305 | int expected, | |
306 | const char *label | |
307 | ) | |
308 | { | |
309 | struct usb_device *udev = urb->dev; | |
310 | int max = urb->transfer_buffer_length; | |
311 | struct completion completion; | |
312 | int retval = 0; | |
313 | ||
314 | urb->context = &completion; | |
315 | while (retval == 0 && iterations-- > 0) { | |
316 | init_completion (&completion); | |
317 | if (usb_pipeout (urb->pipe)) | |
318 | simple_fill_buf (urb); | |
e94b1766 | 319 | if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) |
1da177e4 LT |
320 | break; |
321 | ||
322 | /* NOTE: no timeouts; can't be broken out of by interrupt */ | |
323 | wait_for_completion (&completion); | |
324 | retval = urb->status; | |
325 | urb->dev = udev; | |
326 | if (retval == 0 && usb_pipein (urb->pipe)) | |
327 | retval = simple_check_buf (urb); | |
328 | ||
329 | if (vary) { | |
330 | int len = urb->transfer_buffer_length; | |
331 | ||
332 | len += vary; | |
333 | len %= max; | |
334 | if (len == 0) | |
335 | len = (vary < max) ? vary : max; | |
336 | urb->transfer_buffer_length = len; | |
337 | } | |
338 | ||
339 | /* FIXME if endpoint halted, clear halt (and log) */ | |
340 | } | |
341 | urb->transfer_buffer_length = max; | |
342 | ||
343 | if (expected != retval) | |
344 | dev_dbg (&udev->dev, | |
345 | "%s failed, iterations left %d, status %d (not %d)\n", | |
346 | label, iterations, retval, expected); | |
347 | return retval; | |
348 | } | |
349 | ||
350 | ||
351 | /*-------------------------------------------------------------------------*/ | |
352 | ||
353 | /* We use scatterlist primitives to test queued I/O. | |
354 | * Yes, this also tests the scatterlist primitives. | |
355 | */ | |
356 | ||
357 | static void free_sglist (struct scatterlist *sg, int nents) | |
358 | { | |
359 | unsigned i; | |
360 | ||
361 | if (!sg) | |
362 | return; | |
363 | for (i = 0; i < nents; i++) { | |
45711f1a | 364 | if (!sg_page(&sg[i])) |
1da177e4 | 365 | continue; |
45711f1a | 366 | kfree (sg_virt(&sg[i])); |
1da177e4 LT |
367 | } |
368 | kfree (sg); | |
369 | } | |
370 | ||
371 | static struct scatterlist * | |
372 | alloc_sglist (int nents, int max, int vary) | |
373 | { | |
374 | struct scatterlist *sg; | |
375 | unsigned i; | |
376 | unsigned size = max; | |
377 | ||
e94b1766 | 378 | sg = kmalloc (nents * sizeof *sg, GFP_KERNEL); |
1da177e4 LT |
379 | if (!sg) |
380 | return NULL; | |
1da177e4 LT |
381 | |
382 | for (i = 0; i < nents; i++) { | |
383 | char *buf; | |
8b524901 | 384 | unsigned j; |
1da177e4 | 385 | |
e94b1766 | 386 | buf = kzalloc (size, GFP_KERNEL); |
1da177e4 LT |
387 | if (!buf) { |
388 | free_sglist (sg, i); | |
389 | return NULL; | |
390 | } | |
1da177e4 LT |
391 | |
392 | /* kmalloc pages are always physically contiguous! */ | |
378f058c | 393 | sg_init_one(&sg[i], buf, size); |
1da177e4 | 394 | |
8b524901 DB |
395 | switch (pattern) { |
396 | case 0: | |
397 | /* already zeroed */ | |
398 | break; | |
399 | case 1: | |
400 | for (j = 0; j < size; j++) | |
401 | *buf++ = (u8) (j % 63); | |
402 | break; | |
403 | } | |
404 | ||
1da177e4 LT |
405 | if (vary) { |
406 | size += vary; | |
407 | size %= max; | |
408 | if (size == 0) | |
409 | size = (vary < max) ? vary : max; | |
410 | } | |
411 | } | |
412 | ||
413 | return sg; | |
414 | } | |
415 | ||
416 | static int perform_sglist ( | |
417 | struct usb_device *udev, | |
418 | unsigned iterations, | |
419 | int pipe, | |
420 | struct usb_sg_request *req, | |
421 | struct scatterlist *sg, | |
422 | int nents | |
423 | ) | |
424 | { | |
425 | int retval = 0; | |
426 | ||
427 | while (retval == 0 && iterations-- > 0) { | |
428 | retval = usb_sg_init (req, udev, pipe, | |
429 | (udev->speed == USB_SPEED_HIGH) | |
430 | ? (INTERRUPT_RATE << 3) | |
431 | : INTERRUPT_RATE, | |
e94b1766 | 432 | sg, nents, 0, GFP_KERNEL); |
1da177e4 LT |
433 | |
434 | if (retval) | |
435 | break; | |
436 | usb_sg_wait (req); | |
437 | retval = req->status; | |
438 | ||
8b524901 DB |
439 | /* FIXME check resulting data pattern */ |
440 | ||
1da177e4 LT |
441 | /* FIXME if endpoint halted, clear halt (and log) */ |
442 | } | |
443 | ||
444 | // FIXME for unlink or fault handling tests, don't report | |
445 | // failure if retval is as we expected ... | |
446 | ||
447 | if (retval) | |
448 | dbg ("perform_sglist failed, iterations left %d, status %d", | |
449 | iterations, retval); | |
450 | return retval; | |
451 | } | |
452 | ||
453 | ||
454 | /*-------------------------------------------------------------------------*/ | |
455 | ||
456 | /* unqueued control message testing | |
457 | * | |
458 | * there's a nice set of device functional requirements in chapter 9 of the | |
459 | * usb 2.0 spec, which we can apply to ANY device, even ones that don't use | |
460 | * special test firmware. | |
461 | * | |
462 | * we know the device is configured (or suspended) by the time it's visible | |
463 | * through usbfs. we can't change that, so we won't test enumeration (which | |
464 | * worked 'well enough' to get here, this time), power management (ditto), | |
465 | * or remote wakeup (which needs human interaction). | |
466 | */ | |
467 | ||
468 | static unsigned realworld = 1; | |
469 | module_param (realworld, uint, 0); | |
ff7c79e4 | 470 | MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); |
1da177e4 LT |
471 | |
472 | static int get_altsetting (struct usbtest_dev *dev) | |
473 | { | |
474 | struct usb_interface *iface = dev->intf; | |
475 | struct usb_device *udev = interface_to_usbdev (iface); | |
476 | int retval; | |
477 | ||
478 | retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), | |
479 | USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, | |
480 | 0, iface->altsetting [0].desc.bInterfaceNumber, | |
481 | dev->buf, 1, USB_CTRL_GET_TIMEOUT); | |
482 | switch (retval) { | |
483 | case 1: | |
484 | return dev->buf [0]; | |
485 | case 0: | |
486 | retval = -ERANGE; | |
487 | // FALLTHROUGH | |
488 | default: | |
489 | return retval; | |
490 | } | |
491 | } | |
492 | ||
493 | static int set_altsetting (struct usbtest_dev *dev, int alternate) | |
494 | { | |
495 | struct usb_interface *iface = dev->intf; | |
496 | struct usb_device *udev; | |
497 | ||
498 | if (alternate < 0 || alternate >= 256) | |
499 | return -EINVAL; | |
500 | ||
501 | udev = interface_to_usbdev (iface); | |
502 | return usb_set_interface (udev, | |
503 | iface->altsetting [0].desc.bInterfaceNumber, | |
504 | alternate); | |
505 | } | |
506 | ||
507 | static int is_good_config (char *buf, int len) | |
508 | { | |
509 | struct usb_config_descriptor *config; | |
510 | ||
511 | if (len < sizeof *config) | |
512 | return 0; | |
513 | config = (struct usb_config_descriptor *) buf; | |
514 | ||
515 | switch (config->bDescriptorType) { | |
516 | case USB_DT_CONFIG: | |
517 | case USB_DT_OTHER_SPEED_CONFIG: | |
518 | if (config->bLength != 9) { | |
519 | dbg ("bogus config descriptor length"); | |
520 | return 0; | |
521 | } | |
522 | /* this bit 'must be 1' but often isn't */ | |
523 | if (!realworld && !(config->bmAttributes & 0x80)) { | |
524 | dbg ("high bit of config attributes not set"); | |
525 | return 0; | |
526 | } | |
527 | if (config->bmAttributes & 0x1f) { /* reserved == 0 */ | |
528 | dbg ("reserved config bits set"); | |
529 | return 0; | |
530 | } | |
531 | break; | |
532 | default: | |
533 | return 0; | |
534 | } | |
535 | ||
536 | if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ | |
537 | return 1; | |
538 | if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ | |
539 | return 1; | |
540 | dbg ("bogus config descriptor read size"); | |
541 | return 0; | |
542 | } | |
543 | ||
544 | /* sanity test for standard requests working with usb_control_mesg() and some | |
545 | * of the utility functions which use it. | |
546 | * | |
547 | * this doesn't test how endpoint halts behave or data toggles get set, since | |
548 | * we won't do I/O to bulk/interrupt endpoints here (which is how to change | |
549 | * halt or toggle). toggle testing is impractical without support from hcds. | |
550 | * | |
551 | * this avoids failing devices linux would normally work with, by not testing | |
552 | * config/altsetting operations for devices that only support their defaults. | |
553 | * such devices rarely support those needless operations. | |
554 | * | |
555 | * NOTE that since this is a sanity test, it's not examining boundary cases | |
556 | * to see if usbcore, hcd, and device all behave right. such testing would | |
557 | * involve varied read sizes and other operation sequences. | |
558 | */ | |
559 | static int ch9_postconfig (struct usbtest_dev *dev) | |
560 | { | |
561 | struct usb_interface *iface = dev->intf; | |
562 | struct usb_device *udev = interface_to_usbdev (iface); | |
563 | int i, alt, retval; | |
564 | ||
565 | /* [9.2.3] if there's more than one altsetting, we need to be able to | |
566 | * set and get each one. mostly trusts the descriptors from usbcore. | |
567 | */ | |
568 | for (i = 0; i < iface->num_altsetting; i++) { | |
569 | ||
570 | /* 9.2.3 constrains the range here */ | |
571 | alt = iface->altsetting [i].desc.bAlternateSetting; | |
572 | if (alt < 0 || alt >= iface->num_altsetting) { | |
573 | dev_dbg (&iface->dev, | |
574 | "invalid alt [%d].bAltSetting = %d\n", | |
575 | i, alt); | |
576 | } | |
577 | ||
578 | /* [real world] get/set unimplemented if there's only one */ | |
579 | if (realworld && iface->num_altsetting == 1) | |
580 | continue; | |
581 | ||
582 | /* [9.4.10] set_interface */ | |
583 | retval = set_altsetting (dev, alt); | |
584 | if (retval) { | |
585 | dev_dbg (&iface->dev, "can't set_interface = %d, %d\n", | |
586 | alt, retval); | |
587 | return retval; | |
588 | } | |
589 | ||
590 | /* [9.4.4] get_interface always works */ | |
591 | retval = get_altsetting (dev); | |
592 | if (retval != alt) { | |
593 | dev_dbg (&iface->dev, "get alt should be %d, was %d\n", | |
594 | alt, retval); | |
595 | return (retval < 0) ? retval : -EDOM; | |
596 | } | |
597 | ||
598 | } | |
599 | ||
600 | /* [real world] get_config unimplemented if there's only one */ | |
601 | if (!realworld || udev->descriptor.bNumConfigurations != 1) { | |
602 | int expected = udev->actconfig->desc.bConfigurationValue; | |
603 | ||
604 | /* [9.4.2] get_configuration always works | |
605 | * ... although some cheap devices (like one TI Hub I've got) | |
606 | * won't return config descriptors except before set_config. | |
607 | */ | |
608 | retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), | |
609 | USB_REQ_GET_CONFIGURATION, | |
610 | USB_DIR_IN | USB_RECIP_DEVICE, | |
611 | 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); | |
612 | if (retval != 1 || dev->buf [0] != expected) { | |
ff7c79e4 DB |
613 | dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n", |
614 | retval, dev->buf[0], expected); | |
1da177e4 LT |
615 | return (retval < 0) ? retval : -EDOM; |
616 | } | |
617 | } | |
618 | ||
619 | /* there's always [9.4.3] a device descriptor [9.6.1] */ | |
620 | retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, | |
621 | dev->buf, sizeof udev->descriptor); | |
622 | if (retval != sizeof udev->descriptor) { | |
623 | dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval); | |
624 | return (retval < 0) ? retval : -EDOM; | |
625 | } | |
626 | ||
627 | /* there's always [9.4.3] at least one config descriptor [9.6.3] */ | |
628 | for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { | |
629 | retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, | |
630 | dev->buf, TBUF_SIZE); | |
631 | if (!is_good_config (dev->buf, retval)) { | |
632 | dev_dbg (&iface->dev, | |
633 | "config [%d] descriptor --> %d\n", | |
634 | i, retval); | |
635 | return (retval < 0) ? retval : -EDOM; | |
636 | } | |
637 | ||
638 | // FIXME cross-checking udev->config[i] to make sure usbcore | |
639 | // parsed it right (etc) would be good testing paranoia | |
640 | } | |
641 | ||
642 | /* and sometimes [9.2.6.6] speed dependent descriptors */ | |
643 | if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { | |
644 | struct usb_qualifier_descriptor *d = NULL; | |
645 | ||
646 | /* device qualifier [9.6.2] */ | |
647 | retval = usb_get_descriptor (udev, | |
648 | USB_DT_DEVICE_QUALIFIER, 0, dev->buf, | |
649 | sizeof (struct usb_qualifier_descriptor)); | |
650 | if (retval == -EPIPE) { | |
651 | if (udev->speed == USB_SPEED_HIGH) { | |
652 | dev_dbg (&iface->dev, | |
653 | "hs dev qualifier --> %d\n", | |
654 | retval); | |
655 | return (retval < 0) ? retval : -EDOM; | |
656 | } | |
657 | /* usb2.0 but not high-speed capable; fine */ | |
658 | } else if (retval != sizeof (struct usb_qualifier_descriptor)) { | |
659 | dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval); | |
660 | return (retval < 0) ? retval : -EDOM; | |
661 | } else | |
662 | d = (struct usb_qualifier_descriptor *) dev->buf; | |
663 | ||
664 | /* might not have [9.6.2] any other-speed configs [9.6.4] */ | |
665 | if (d) { | |
666 | unsigned max = d->bNumConfigurations; | |
667 | for (i = 0; i < max; i++) { | |
668 | retval = usb_get_descriptor (udev, | |
669 | USB_DT_OTHER_SPEED_CONFIG, i, | |
670 | dev->buf, TBUF_SIZE); | |
671 | if (!is_good_config (dev->buf, retval)) { | |
672 | dev_dbg (&iface->dev, | |
673 | "other speed config --> %d\n", | |
674 | retval); | |
675 | return (retval < 0) ? retval : -EDOM; | |
676 | } | |
677 | } | |
678 | } | |
679 | } | |
680 | // FIXME fetch strings from at least the device descriptor | |
681 | ||
682 | /* [9.4.5] get_status always works */ | |
683 | retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); | |
684 | if (retval != 2) { | |
685 | dev_dbg (&iface->dev, "get dev status --> %d\n", retval); | |
686 | return (retval < 0) ? retval : -EDOM; | |
687 | } | |
688 | ||
689 | // FIXME configuration.bmAttributes says if we could try to set/clear | |
690 | // the device's remote wakeup feature ... if we can, test that here | |
691 | ||
692 | retval = usb_get_status (udev, USB_RECIP_INTERFACE, | |
693 | iface->altsetting [0].desc.bInterfaceNumber, dev->buf); | |
694 | if (retval != 2) { | |
695 | dev_dbg (&iface->dev, "get interface status --> %d\n", retval); | |
696 | return (retval < 0) ? retval : -EDOM; | |
697 | } | |
698 | // FIXME get status for each endpoint in the interface | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
703 | /*-------------------------------------------------------------------------*/ | |
704 | ||
705 | /* use ch9 requests to test whether: | |
706 | * (a) queues work for control, keeping N subtests queued and | |
707 | * active (auto-resubmit) for M loops through the queue. | |
708 | * (b) protocol stalls (control-only) will autorecover. | |
709 | * it's not like bulk/intr; no halt clearing. | |
710 | * (c) short control reads are reported and handled. | |
711 | * (d) queues are always processed in-order | |
712 | */ | |
713 | ||
714 | struct ctrl_ctx { | |
715 | spinlock_t lock; | |
716 | struct usbtest_dev *dev; | |
717 | struct completion complete; | |
718 | unsigned count; | |
719 | unsigned pending; | |
720 | int status; | |
721 | struct urb **urb; | |
722 | struct usbtest_param *param; | |
723 | int last; | |
724 | }; | |
725 | ||
726 | #define NUM_SUBCASES 15 /* how many test subcases here? */ | |
727 | ||
728 | struct subcase { | |
729 | struct usb_ctrlrequest setup; | |
730 | int number; | |
731 | int expected; | |
732 | }; | |
733 | ||
7d12e780 | 734 | static void ctrl_complete (struct urb *urb) |
1da177e4 LT |
735 | { |
736 | struct ctrl_ctx *ctx = urb->context; | |
737 | struct usb_ctrlrequest *reqp; | |
738 | struct subcase *subcase; | |
739 | int status = urb->status; | |
740 | ||
741 | reqp = (struct usb_ctrlrequest *)urb->setup_packet; | |
742 | subcase = container_of (reqp, struct subcase, setup); | |
743 | ||
744 | spin_lock (&ctx->lock); | |
745 | ctx->count--; | |
746 | ctx->pending--; | |
747 | ||
748 | /* queue must transfer and complete in fifo order, unless | |
749 | * usb_unlink_urb() is used to unlink something not at the | |
750 | * physical queue head (not tested). | |
751 | */ | |
752 | if (subcase->number > 0) { | |
753 | if ((subcase->number - ctx->last) != 1) { | |
754 | dbg ("subcase %d completed out of order, last %d", | |
755 | subcase->number, ctx->last); | |
756 | status = -EDOM; | |
757 | ctx->last = subcase->number; | |
758 | goto error; | |
759 | } | |
760 | } | |
761 | ctx->last = subcase->number; | |
762 | ||
763 | /* succeed or fault in only one way? */ | |
764 | if (status == subcase->expected) | |
765 | status = 0; | |
766 | ||
767 | /* async unlink for cleanup? */ | |
768 | else if (status != -ECONNRESET) { | |
769 | ||
770 | /* some faults are allowed, not required */ | |
771 | if (subcase->expected > 0 && ( | |
59d99785 GKH |
772 | ((status == -subcase->expected /* happened */ |
773 | || status == 0)))) /* didn't */ | |
1da177e4 LT |
774 | status = 0; |
775 | /* sometimes more than one fault is allowed */ | |
776 | else if (subcase->number == 12 && status == -EPIPE) | |
777 | status = 0; | |
778 | else | |
779 | dbg ("subtest %d error, status %d", | |
780 | subcase->number, status); | |
781 | } | |
782 | ||
783 | /* unexpected status codes mean errors; ideally, in hardware */ | |
784 | if (status) { | |
785 | error: | |
786 | if (ctx->status == 0) { | |
787 | int i; | |
788 | ||
789 | ctx->status = status; | |
790 | info ("control queue %02x.%02x, err %d, %d left", | |
791 | reqp->bRequestType, reqp->bRequest, | |
792 | status, ctx->count); | |
793 | ||
794 | /* FIXME this "unlink everything" exit route should | |
795 | * be a separate test case. | |
796 | */ | |
797 | ||
798 | /* unlink whatever's still pending */ | |
799 | for (i = 1; i < ctx->param->sglen; i++) { | |
800 | struct urb *u = ctx->urb [ | |
801 | (i + subcase->number) % ctx->param->sglen]; | |
802 | ||
803 | if (u == urb || !u->dev) | |
804 | continue; | |
caa2a122 | 805 | spin_unlock(&ctx->lock); |
1da177e4 | 806 | status = usb_unlink_urb (u); |
caa2a122 | 807 | spin_lock(&ctx->lock); |
1da177e4 LT |
808 | switch (status) { |
809 | case -EINPROGRESS: | |
810 | case -EBUSY: | |
811 | case -EIDRM: | |
812 | continue; | |
813 | default: | |
814 | dbg ("urb unlink --> %d", status); | |
815 | } | |
816 | } | |
817 | status = ctx->status; | |
818 | } | |
819 | } | |
820 | ||
821 | /* resubmit if we need to, else mark this as done */ | |
822 | if ((status == 0) && (ctx->pending < ctx->count)) { | |
54e6ecb2 | 823 | if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) { |
1da177e4 LT |
824 | dbg ("can't resubmit ctrl %02x.%02x, err %d", |
825 | reqp->bRequestType, reqp->bRequest, status); | |
826 | urb->dev = NULL; | |
827 | } else | |
828 | ctx->pending++; | |
829 | } else | |
830 | urb->dev = NULL; | |
831 | ||
832 | /* signal completion when nothing's queued */ | |
833 | if (ctx->pending == 0) | |
834 | complete (&ctx->complete); | |
835 | spin_unlock (&ctx->lock); | |
836 | } | |
837 | ||
838 | static int | |
839 | test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) | |
840 | { | |
841 | struct usb_device *udev = testdev_to_usbdev (dev); | |
842 | struct urb **urb; | |
843 | struct ctrl_ctx context; | |
844 | int i; | |
845 | ||
846 | spin_lock_init (&context.lock); | |
847 | context.dev = dev; | |
848 | init_completion (&context.complete); | |
849 | context.count = param->sglen * param->iterations; | |
850 | context.pending = 0; | |
851 | context.status = -ENOMEM; | |
852 | context.param = param; | |
853 | context.last = -1; | |
854 | ||
855 | /* allocate and init the urbs we'll queue. | |
856 | * as with bulk/intr sglists, sglen is the queue depth; it also | |
857 | * controls which subtests run (more tests than sglen) or rerun. | |
858 | */ | |
e94b1766 | 859 | urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); |
1da177e4 LT |
860 | if (!urb) |
861 | return -ENOMEM; | |
1da177e4 LT |
862 | for (i = 0; i < param->sglen; i++) { |
863 | int pipe = usb_rcvctrlpipe (udev, 0); | |
864 | unsigned len; | |
865 | struct urb *u; | |
866 | struct usb_ctrlrequest req; | |
867 | struct subcase *reqp; | |
868 | int expected = 0; | |
869 | ||
870 | /* requests here are mostly expected to succeed on any | |
871 | * device, but some are chosen to trigger protocol stalls | |
872 | * or short reads. | |
873 | */ | |
874 | memset (&req, 0, sizeof req); | |
875 | req.bRequest = USB_REQ_GET_DESCRIPTOR; | |
876 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; | |
877 | ||
878 | switch (i % NUM_SUBCASES) { | |
879 | case 0: // get device descriptor | |
880 | req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); | |
881 | len = sizeof (struct usb_device_descriptor); | |
882 | break; | |
883 | case 1: // get first config descriptor (only) | |
884 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); | |
885 | len = sizeof (struct usb_config_descriptor); | |
886 | break; | |
887 | case 2: // get altsetting (OFTEN STALLS) | |
888 | req.bRequest = USB_REQ_GET_INTERFACE; | |
889 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; | |
890 | // index = 0 means first interface | |
891 | len = 1; | |
892 | expected = EPIPE; | |
893 | break; | |
894 | case 3: // get interface status | |
895 | req.bRequest = USB_REQ_GET_STATUS; | |
896 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; | |
897 | // interface 0 | |
898 | len = 2; | |
899 | break; | |
900 | case 4: // get device status | |
901 | req.bRequest = USB_REQ_GET_STATUS; | |
902 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; | |
903 | len = 2; | |
904 | break; | |
905 | case 5: // get device qualifier (MAY STALL) | |
906 | req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); | |
907 | len = sizeof (struct usb_qualifier_descriptor); | |
908 | if (udev->speed != USB_SPEED_HIGH) | |
909 | expected = EPIPE; | |
910 | break; | |
911 | case 6: // get first config descriptor, plus interface | |
912 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); | |
913 | len = sizeof (struct usb_config_descriptor); | |
914 | len += sizeof (struct usb_interface_descriptor); | |
915 | break; | |
916 | case 7: // get interface descriptor (ALWAYS STALLS) | |
917 | req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); | |
918 | // interface == 0 | |
919 | len = sizeof (struct usb_interface_descriptor); | |
920 | expected = EPIPE; | |
921 | break; | |
922 | // NOTE: two consecutive stalls in the queue here. | |
923 | // that tests fault recovery a bit more aggressively. | |
924 | case 8: // clear endpoint halt (USUALLY STALLS) | |
925 | req.bRequest = USB_REQ_CLEAR_FEATURE; | |
926 | req.bRequestType = USB_RECIP_ENDPOINT; | |
927 | // wValue 0 == ep halt | |
928 | // wIndex 0 == ep0 (shouldn't halt!) | |
929 | len = 0; | |
930 | pipe = usb_sndctrlpipe (udev, 0); | |
931 | expected = EPIPE; | |
932 | break; | |
933 | case 9: // get endpoint status | |
934 | req.bRequest = USB_REQ_GET_STATUS; | |
935 | req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; | |
936 | // endpoint 0 | |
937 | len = 2; | |
938 | break; | |
939 | case 10: // trigger short read (EREMOTEIO) | |
940 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); | |
941 | len = 1024; | |
942 | expected = -EREMOTEIO; | |
943 | break; | |
944 | // NOTE: two consecutive _different_ faults in the queue. | |
945 | case 11: // get endpoint descriptor (ALWAYS STALLS) | |
946 | req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); | |
947 | // endpoint == 0 | |
948 | len = sizeof (struct usb_interface_descriptor); | |
949 | expected = EPIPE; | |
950 | break; | |
951 | // NOTE: sometimes even a third fault in the queue! | |
952 | case 12: // get string 0 descriptor (MAY STALL) | |
953 | req.wValue = cpu_to_le16 (USB_DT_STRING << 8); | |
954 | // string == 0, for language IDs | |
955 | len = sizeof (struct usb_interface_descriptor); | |
956 | // may succeed when > 4 languages | |
957 | expected = EREMOTEIO; // or EPIPE, if no strings | |
958 | break; | |
959 | case 13: // short read, resembling case 10 | |
960 | req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); | |
961 | // last data packet "should" be DATA1, not DATA0 | |
962 | len = 1024 - udev->descriptor.bMaxPacketSize0; | |
963 | expected = -EREMOTEIO; | |
964 | break; | |
965 | case 14: // short read; try to fill the last packet | |
966 | req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); | |
967 | // device descriptor size == 18 bytes | |
968 | len = udev->descriptor.bMaxPacketSize0; | |
969 | switch (len) { | |
970 | case 8: len = 24; break; | |
971 | case 16: len = 32; break; | |
972 | } | |
973 | expected = -EREMOTEIO; | |
974 | break; | |
975 | default: | |
976 | err ("bogus number of ctrl queue testcases!"); | |
977 | context.status = -EINVAL; | |
978 | goto cleanup; | |
979 | } | |
980 | req.wLength = cpu_to_le16 (len); | |
981 | urb [i] = u = simple_alloc_urb (udev, pipe, len); | |
982 | if (!u) | |
983 | goto cleanup; | |
984 | ||
e94b1766 | 985 | reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL, |
1da177e4 LT |
986 | &u->setup_dma); |
987 | if (!reqp) | |
988 | goto cleanup; | |
989 | reqp->setup = req; | |
990 | reqp->number = i % NUM_SUBCASES; | |
991 | reqp->expected = expected; | |
992 | u->setup_packet = (char *) &reqp->setup; | |
3e8a556a | 993 | u->transfer_flags |= URB_NO_SETUP_DMA_MAP; |
1da177e4 LT |
994 | |
995 | u->context = &context; | |
996 | u->complete = ctrl_complete; | |
1da177e4 LT |
997 | } |
998 | ||
999 | /* queue the urbs */ | |
1000 | context.urb = urb; | |
1001 | spin_lock_irq (&context.lock); | |
1002 | for (i = 0; i < param->sglen; i++) { | |
54e6ecb2 | 1003 | context.status = usb_submit_urb (urb [i], GFP_ATOMIC); |
1da177e4 LT |
1004 | if (context.status != 0) { |
1005 | dbg ("can't submit urb[%d], status %d", | |
1006 | i, context.status); | |
1007 | context.count = context.pending; | |
1008 | break; | |
1009 | } | |
1010 | context.pending++; | |
1011 | } | |
1012 | spin_unlock_irq (&context.lock); | |
1013 | ||
1014 | /* FIXME set timer and time out; provide a disconnect hook */ | |
1015 | ||
1016 | /* wait for the last one to complete */ | |
1017 | if (context.pending > 0) | |
1018 | wait_for_completion (&context.complete); | |
1019 | ||
1020 | cleanup: | |
1021 | for (i = 0; i < param->sglen; i++) { | |
1022 | if (!urb [i]) | |
1023 | continue; | |
1024 | urb [i]->dev = udev; | |
1025 | if (urb [i]->setup_packet) | |
1026 | usb_buffer_free (udev, sizeof (struct usb_ctrlrequest), | |
1027 | urb [i]->setup_packet, | |
1028 | urb [i]->setup_dma); | |
1029 | simple_free_urb (urb [i]); | |
1030 | } | |
1031 | kfree (urb); | |
1032 | return context.status; | |
1033 | } | |
1034 | #undef NUM_SUBCASES | |
1035 | ||
1036 | ||
1037 | /*-------------------------------------------------------------------------*/ | |
1038 | ||
7d12e780 | 1039 | static void unlink1_callback (struct urb *urb) |
1da177e4 LT |
1040 | { |
1041 | int status = urb->status; | |
1042 | ||
1043 | // we "know" -EPIPE (stall) never happens | |
1044 | if (!status) | |
54e6ecb2 | 1045 | status = usb_submit_urb (urb, GFP_ATOMIC); |
1da177e4 LT |
1046 | if (status) { |
1047 | urb->status = status; | |
1048 | complete ((struct completion *) urb->context); | |
1049 | } | |
1050 | } | |
1051 | ||
1052 | static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) | |
1053 | { | |
1054 | struct urb *urb; | |
1055 | struct completion completion; | |
1056 | int retval = 0; | |
1057 | ||
1058 | init_completion (&completion); | |
1059 | urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); | |
1060 | if (!urb) | |
1061 | return -ENOMEM; | |
1da177e4 LT |
1062 | urb->context = &completion; |
1063 | urb->complete = unlink1_callback; | |
1064 | ||
1065 | /* keep the endpoint busy. there are lots of hc/hcd-internal | |
1066 | * states, and testing should get to all of them over time. | |
1067 | * | |
1068 | * FIXME want additional tests for when endpoint is STALLing | |
1069 | * due to errors, or is just NAKing requests. | |
1070 | */ | |
e94b1766 | 1071 | if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) { |
1da177e4 LT |
1072 | dev_dbg (&dev->intf->dev, "submit fail %d\n", retval); |
1073 | return retval; | |
1074 | } | |
1075 | ||
1076 | /* unlinking that should always work. variable delay tests more | |
1077 | * hcd states and code paths, even with little other system load. | |
1078 | */ | |
1079 | msleep (jiffies % (2 * INTERRUPT_RATE)); | |
1080 | if (async) { | |
1081 | retry: | |
1082 | retval = usb_unlink_urb (urb); | |
1083 | if (retval == -EBUSY || retval == -EIDRM) { | |
1084 | /* we can't unlink urbs while they're completing. | |
1085 | * or if they've completed, and we haven't resubmitted. | |
1086 | * "normal" drivers would prevent resubmission, but | |
1087 | * since we're testing unlink paths, we can't. | |
1088 | */ | |
1089 | dev_dbg (&dev->intf->dev, "unlink retry\n"); | |
1090 | goto retry; | |
1091 | } | |
1092 | } else | |
1093 | usb_kill_urb (urb); | |
1094 | if (!(retval == 0 || retval == -EINPROGRESS)) { | |
1095 | dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval); | |
1096 | return retval; | |
1097 | } | |
1098 | ||
1099 | wait_for_completion (&completion); | |
1100 | retval = urb->status; | |
1101 | simple_free_urb (urb); | |
1102 | ||
1103 | if (async) | |
1104 | return (retval == -ECONNRESET) ? 0 : retval - 1000; | |
1105 | else | |
1106 | return (retval == -ENOENT || retval == -EPERM) ? | |
1107 | 0 : retval - 2000; | |
1108 | } | |
1109 | ||
1110 | static int unlink_simple (struct usbtest_dev *dev, int pipe, int len) | |
1111 | { | |
1112 | int retval = 0; | |
1113 | ||
1114 | /* test sync and async paths */ | |
1115 | retval = unlink1 (dev, pipe, len, 1); | |
1116 | if (!retval) | |
1117 | retval = unlink1 (dev, pipe, len, 0); | |
1118 | return retval; | |
1119 | } | |
1120 | ||
1121 | /*-------------------------------------------------------------------------*/ | |
1122 | ||
1123 | static int verify_not_halted (int ep, struct urb *urb) | |
1124 | { | |
1125 | int retval; | |
1126 | u16 status; | |
1127 | ||
1128 | /* shouldn't look or act halted */ | |
1129 | retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); | |
1130 | if (retval < 0) { | |
1131 | dbg ("ep %02x couldn't get no-halt status, %d", ep, retval); | |
1132 | return retval; | |
1133 | } | |
1134 | if (status != 0) { | |
1135 | dbg ("ep %02x bogus status: %04x != 0", ep, status); | |
1136 | return -EINVAL; | |
1137 | } | |
1138 | retval = simple_io (urb, 1, 0, 0, __FUNCTION__); | |
1139 | if (retval != 0) | |
1140 | return -EINVAL; | |
1141 | return 0; | |
1142 | } | |
1143 | ||
1144 | static int verify_halted (int ep, struct urb *urb) | |
1145 | { | |
1146 | int retval; | |
1147 | u16 status; | |
1148 | ||
1149 | /* should look and act halted */ | |
1150 | retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); | |
1151 | if (retval < 0) { | |
1152 | dbg ("ep %02x couldn't get halt status, %d", ep, retval); | |
1153 | return retval; | |
1154 | } | |
6ce4560a | 1155 | le16_to_cpus(&status); |
1da177e4 LT |
1156 | if (status != 1) { |
1157 | dbg ("ep %02x bogus status: %04x != 1", ep, status); | |
1158 | return -EINVAL; | |
1159 | } | |
1160 | retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__); | |
1161 | if (retval != -EPIPE) | |
1162 | return -EINVAL; | |
1163 | retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted"); | |
1164 | if (retval != -EPIPE) | |
1165 | return -EINVAL; | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static int test_halt (int ep, struct urb *urb) | |
1170 | { | |
1171 | int retval; | |
1172 | ||
1173 | /* shouldn't look or act halted now */ | |
1174 | retval = verify_not_halted (ep, urb); | |
1175 | if (retval < 0) | |
1176 | return retval; | |
1177 | ||
1178 | /* set halt (protocol test only), verify it worked */ | |
1179 | retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), | |
1180 | USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, | |
1181 | USB_ENDPOINT_HALT, ep, | |
1182 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
1183 | if (retval < 0) { | |
1184 | dbg ("ep %02x couldn't set halt, %d", ep, retval); | |
1185 | return retval; | |
1186 | } | |
1187 | retval = verify_halted (ep, urb); | |
1188 | if (retval < 0) | |
1189 | return retval; | |
1190 | ||
1191 | /* clear halt (tests API + protocol), verify it worked */ | |
1192 | retval = usb_clear_halt (urb->dev, urb->pipe); | |
1193 | if (retval < 0) { | |
1194 | dbg ("ep %02x couldn't clear halt, %d", ep, retval); | |
1195 | return retval; | |
1196 | } | |
1197 | retval = verify_not_halted (ep, urb); | |
1198 | if (retval < 0) | |
1199 | return retval; | |
1200 | ||
1201 | /* NOTE: could also verify SET_INTERFACE clear halts ... */ | |
1202 | ||
1203 | return 0; | |
1204 | } | |
1205 | ||
1206 | static int halt_simple (struct usbtest_dev *dev) | |
1207 | { | |
1208 | int ep; | |
1209 | int retval = 0; | |
1210 | struct urb *urb; | |
1211 | ||
1212 | urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); | |
1213 | if (urb == NULL) | |
1214 | return -ENOMEM; | |
1215 | ||
1216 | if (dev->in_pipe) { | |
1217 | ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; | |
1218 | urb->pipe = dev->in_pipe; | |
1219 | retval = test_halt (ep, urb); | |
1220 | if (retval < 0) | |
1221 | goto done; | |
1222 | } | |
1223 | ||
1224 | if (dev->out_pipe) { | |
1225 | ep = usb_pipeendpoint (dev->out_pipe); | |
1226 | urb->pipe = dev->out_pipe; | |
1227 | retval = test_halt (ep, urb); | |
1228 | } | |
1229 | done: | |
1230 | simple_free_urb (urb); | |
1231 | return retval; | |
1232 | } | |
1233 | ||
1234 | /*-------------------------------------------------------------------------*/ | |
1235 | ||
1236 | /* Control OUT tests use the vendor control requests from Intel's | |
1237 | * USB 2.0 compliance test device: write a buffer, read it back. | |
1238 | * | |
1239 | * Intel's spec only _requires_ that it work for one packet, which | |
1240 | * is pretty weak. Some HCDs place limits here; most devices will | |
1241 | * need to be able to handle more than one OUT data packet. We'll | |
1242 | * try whatever we're told to try. | |
1243 | */ | |
1244 | static int ctrl_out (struct usbtest_dev *dev, | |
1245 | unsigned count, unsigned length, unsigned vary) | |
1246 | { | |
f54fa84d OF |
1247 | unsigned i, j, len; |
1248 | int retval; | |
1da177e4 LT |
1249 | u8 *buf; |
1250 | char *what = "?"; | |
1251 | struct usb_device *udev; | |
f54fa84d | 1252 | |
ff7c79e4 | 1253 | if (length < 1 || length > 0xffff || vary >= length) |
1da177e4 LT |
1254 | return -EINVAL; |
1255 | ||
e94b1766 | 1256 | buf = kmalloc(length, GFP_KERNEL); |
1da177e4 LT |
1257 | if (!buf) |
1258 | return -ENOMEM; | |
1259 | ||
1260 | udev = testdev_to_usbdev (dev); | |
1261 | len = length; | |
1262 | retval = 0; | |
1263 | ||
1264 | /* NOTE: hardware might well act differently if we pushed it | |
1265 | * with lots back-to-back queued requests. | |
1266 | */ | |
1267 | for (i = 0; i < count; i++) { | |
1268 | /* write patterned data */ | |
1269 | for (j = 0; j < len; j++) | |
1270 | buf [j] = i + j; | |
1271 | retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), | |
1272 | 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, | |
1273 | 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); | |
1274 | if (retval != len) { | |
1275 | what = "write"; | |
ff7c79e4 DB |
1276 | if (retval >= 0) { |
1277 | INFO(dev, "ctrl_out, wlen %d (expected %d)\n", | |
1278 | retval, len); | |
1279 | retval = -EBADMSG; | |
1280 | } | |
1da177e4 LT |
1281 | break; |
1282 | } | |
1283 | ||
1284 | /* read it back -- assuming nothing intervened!! */ | |
1285 | retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), | |
1286 | 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, | |
1287 | 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); | |
1288 | if (retval != len) { | |
1289 | what = "read"; | |
ff7c79e4 DB |
1290 | if (retval >= 0) { |
1291 | INFO(dev, "ctrl_out, rlen %d (expected %d)\n", | |
1292 | retval, len); | |
1293 | retval = -EBADMSG; | |
1294 | } | |
1da177e4 LT |
1295 | break; |
1296 | } | |
1297 | ||
1298 | /* fail if we can't verify */ | |
1299 | for (j = 0; j < len; j++) { | |
1300 | if (buf [j] != (u8) (i + j)) { | |
1301 | INFO (dev, "ctrl_out, byte %d is %d not %d\n", | |
1302 | j, buf [j], (u8) i + j); | |
1303 | retval = -EBADMSG; | |
1304 | break; | |
1305 | } | |
1306 | } | |
1307 | if (retval < 0) { | |
1308 | what = "verify"; | |
1309 | break; | |
1310 | } | |
1311 | ||
1312 | len += vary; | |
ff7c79e4 DB |
1313 | |
1314 | /* [real world] the "zero bytes IN" case isn't really used. | |
dc0d5c1e | 1315 | * hardware can easily trip up in this weird case, since its |
ff7c79e4 DB |
1316 | * status stage is IN, not OUT like other ep0in transfers. |
1317 | */ | |
1da177e4 | 1318 | if (len > length) |
ff7c79e4 | 1319 | len = realworld ? 1 : 0; |
1da177e4 LT |
1320 | } |
1321 | ||
1322 | if (retval < 0) | |
1323 | INFO (dev, "ctrl_out %s failed, code %d, count %d\n", | |
1324 | what, retval, i); | |
1325 | ||
1326 | kfree (buf); | |
1327 | return retval; | |
1328 | } | |
1329 | ||
1330 | /*-------------------------------------------------------------------------*/ | |
1331 | ||
1332 | /* ISO tests ... mimics common usage | |
1333 | * - buffer length is split into N packets (mostly maxpacket sized) | |
1334 | * - multi-buffers according to sglen | |
1335 | */ | |
1336 | ||
1337 | struct iso_context { | |
1338 | unsigned count; | |
1339 | unsigned pending; | |
1340 | spinlock_t lock; | |
1341 | struct completion done; | |
9da2150f | 1342 | int submit_error; |
1da177e4 | 1343 | unsigned long errors; |
9da2150f | 1344 | unsigned long packet_count; |
1da177e4 LT |
1345 | struct usbtest_dev *dev; |
1346 | }; | |
1347 | ||
7d12e780 | 1348 | static void iso_callback (struct urb *urb) |
1da177e4 LT |
1349 | { |
1350 | struct iso_context *ctx = urb->context; | |
1351 | ||
1352 | spin_lock(&ctx->lock); | |
1353 | ctx->count--; | |
1354 | ||
9da2150f | 1355 | ctx->packet_count += urb->number_of_packets; |
1da177e4 LT |
1356 | if (urb->error_count > 0) |
1357 | ctx->errors += urb->error_count; | |
9da2150f AS |
1358 | else if (urb->status != 0) |
1359 | ctx->errors += urb->number_of_packets; | |
1da177e4 | 1360 | |
9da2150f AS |
1361 | if (urb->status == 0 && ctx->count > (ctx->pending - 1) |
1362 | && !ctx->submit_error) { | |
1da177e4 LT |
1363 | int status = usb_submit_urb (urb, GFP_ATOMIC); |
1364 | switch (status) { | |
1365 | case 0: | |
1366 | goto done; | |
1367 | default: | |
1368 | dev_dbg (&ctx->dev->intf->dev, | |
1369 | "iso resubmit err %d\n", | |
1370 | status); | |
1371 | /* FALLTHROUGH */ | |
1372 | case -ENODEV: /* disconnected */ | |
9da2150f AS |
1373 | case -ESHUTDOWN: /* endpoint disabled */ |
1374 | ctx->submit_error = 1; | |
1da177e4 LT |
1375 | break; |
1376 | } | |
1377 | } | |
1378 | simple_free_urb (urb); | |
1379 | ||
1380 | ctx->pending--; | |
1381 | if (ctx->pending == 0) { | |
1382 | if (ctx->errors) | |
1383 | dev_dbg (&ctx->dev->intf->dev, | |
9da2150f AS |
1384 | "iso test, %lu errors out of %lu\n", |
1385 | ctx->errors, ctx->packet_count); | |
1da177e4 LT |
1386 | complete (&ctx->done); |
1387 | } | |
1388 | done: | |
1389 | spin_unlock(&ctx->lock); | |
1390 | } | |
1391 | ||
1392 | static struct urb *iso_alloc_urb ( | |
1393 | struct usb_device *udev, | |
1394 | int pipe, | |
1395 | struct usb_endpoint_descriptor *desc, | |
1396 | long bytes | |
1397 | ) | |
1398 | { | |
1399 | struct urb *urb; | |
1400 | unsigned i, maxp, packets; | |
1401 | ||
1402 | if (bytes < 0 || !desc) | |
1403 | return NULL; | |
1404 | maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); | |
1405 | maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); | |
1406 | packets = (bytes + maxp - 1) / maxp; | |
1407 | ||
e94b1766 | 1408 | urb = usb_alloc_urb (packets, GFP_KERNEL); |
1da177e4 LT |
1409 | if (!urb) |
1410 | return urb; | |
1411 | urb->dev = udev; | |
1412 | urb->pipe = pipe; | |
1413 | ||
1414 | urb->number_of_packets = packets; | |
1415 | urb->transfer_buffer_length = bytes; | |
e94b1766 | 1416 | urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, |
1da177e4 LT |
1417 | &urb->transfer_dma); |
1418 | if (!urb->transfer_buffer) { | |
1419 | usb_free_urb (urb); | |
1420 | return NULL; | |
1421 | } | |
1422 | memset (urb->transfer_buffer, 0, bytes); | |
1423 | for (i = 0; i < packets; i++) { | |
1424 | /* here, only the last packet will be short */ | |
1425 | urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); | |
1426 | bytes -= urb->iso_frame_desc[i].length; | |
1427 | ||
1428 | urb->iso_frame_desc[i].offset = maxp * i; | |
1429 | } | |
1430 | ||
1431 | urb->complete = iso_callback; | |
1432 | // urb->context = SET BY CALLER | |
1433 | urb->interval = 1 << (desc->bInterval - 1); | |
1434 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; | |
1435 | return urb; | |
1436 | } | |
1437 | ||
1438 | static int | |
1439 | test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, | |
1440 | int pipe, struct usb_endpoint_descriptor *desc) | |
1441 | { | |
1442 | struct iso_context context; | |
1443 | struct usb_device *udev; | |
1444 | unsigned i; | |
1445 | unsigned long packets = 0; | |
9da2150f | 1446 | int status = 0; |
1da177e4 LT |
1447 | struct urb *urbs[10]; /* FIXME no limit */ |
1448 | ||
1449 | if (param->sglen > 10) | |
1450 | return -EDOM; | |
1451 | ||
9da2150f | 1452 | memset(&context, 0, sizeof context); |
1da177e4 | 1453 | context.count = param->iterations * param->sglen; |
1da177e4 LT |
1454 | context.dev = dev; |
1455 | init_completion (&context.done); | |
1456 | spin_lock_init (&context.lock); | |
1457 | ||
1458 | memset (urbs, 0, sizeof urbs); | |
1459 | udev = testdev_to_usbdev (dev); | |
1460 | dev_dbg (&dev->intf->dev, | |
1461 | "... iso period %d %sframes, wMaxPacket %04x\n", | |
1462 | 1 << (desc->bInterval - 1), | |
1463 | (udev->speed == USB_SPEED_HIGH) ? "micro" : "", | |
1464 | le16_to_cpu(desc->wMaxPacketSize)); | |
1465 | ||
1466 | for (i = 0; i < param->sglen; i++) { | |
1467 | urbs [i] = iso_alloc_urb (udev, pipe, desc, | |
1468 | param->length); | |
1469 | if (!urbs [i]) { | |
1470 | status = -ENOMEM; | |
1471 | goto fail; | |
1472 | } | |
1473 | packets += urbs[i]->number_of_packets; | |
1474 | urbs [i]->context = &context; | |
1475 | } | |
1476 | packets *= param->iterations; | |
1477 | dev_dbg (&dev->intf->dev, | |
1478 | "... total %lu msec (%lu packets)\n", | |
1479 | (packets * (1 << (desc->bInterval - 1))) | |
1480 | / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), | |
1481 | packets); | |
1482 | ||
1483 | spin_lock_irq (&context.lock); | |
1484 | for (i = 0; i < param->sglen; i++) { | |
9da2150f | 1485 | ++context.pending; |
54e6ecb2 | 1486 | status = usb_submit_urb (urbs [i], GFP_ATOMIC); |
1da177e4 LT |
1487 | if (status < 0) { |
1488 | ERROR (dev, "submit iso[%d], error %d\n", i, status); | |
1489 | if (i == 0) { | |
1490 | spin_unlock_irq (&context.lock); | |
1491 | goto fail; | |
1492 | } | |
1493 | ||
1494 | simple_free_urb (urbs [i]); | |
1495 | context.pending--; | |
9da2150f AS |
1496 | context.submit_error = 1; |
1497 | break; | |
1da177e4 LT |
1498 | } |
1499 | } | |
1500 | spin_unlock_irq (&context.lock); | |
1501 | ||
1502 | wait_for_completion (&context.done); | |
9da2150f AS |
1503 | |
1504 | /* | |
1505 | * Isochronous transfers are expected to fail sometimes. As an | |
1506 | * arbitrary limit, we will report an error if any submissions | |
1507 | * fail or if the transfer failure rate is > 10%. | |
1508 | */ | |
1509 | if (status != 0) | |
1510 | ; | |
1511 | else if (context.submit_error) | |
1512 | status = -EACCES; | |
1513 | else if (context.errors > context.packet_count / 10) | |
1514 | status = -EIO; | |
1515 | return status; | |
1da177e4 LT |
1516 | |
1517 | fail: | |
1518 | for (i = 0; i < param->sglen; i++) { | |
1519 | if (urbs [i]) | |
1520 | simple_free_urb (urbs [i]); | |
1521 | } | |
1522 | return status; | |
1523 | } | |
1524 | ||
1525 | /*-------------------------------------------------------------------------*/ | |
1526 | ||
1527 | /* We only have this one interface to user space, through usbfs. | |
1528 | * User mode code can scan usbfs to find N different devices (maybe on | |
1529 | * different busses) to use when testing, and allocate one thread per | |
1530 | * test. So discovery is simplified, and we have no device naming issues. | |
1531 | * | |
1532 | * Don't use these only as stress/load tests. Use them along with with | |
1533 | * other USB bus activity: plugging, unplugging, mousing, mp3 playback, | |
1534 | * video capture, and so on. Run different tests at different times, in | |
1535 | * different sequences. Nothing here should interact with other devices, | |
1536 | * except indirectly by consuming USB bandwidth and CPU resources for test | |
1537 | * threads and request completion. But the only way to know that for sure | |
1538 | * is to test when HC queues are in use by many devices. | |
1539 | */ | |
1540 | ||
1541 | static int | |
1542 | usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) | |
1543 | { | |
1544 | struct usbtest_dev *dev = usb_get_intfdata (intf); | |
1545 | struct usb_device *udev = testdev_to_usbdev (dev); | |
1546 | struct usbtest_param *param = buf; | |
1547 | int retval = -EOPNOTSUPP; | |
1548 | struct urb *urb; | |
1549 | struct scatterlist *sg; | |
1550 | struct usb_sg_request req; | |
1551 | struct timeval start; | |
1552 | unsigned i; | |
1553 | ||
1554 | // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. | |
1555 | ||
1556 | if (code != USBTEST_REQUEST) | |
1557 | return -EOPNOTSUPP; | |
1558 | ||
1559 | if (param->iterations <= 0 || param->length < 0 | |
1560 | || param->sglen < 0 || param->vary < 0) | |
1561 | return -EINVAL; | |
1562 | ||
1cfab028 | 1563 | if (mutex_lock_interruptible(&dev->lock)) |
1da177e4 LT |
1564 | return -ERESTARTSYS; |
1565 | ||
ca078bae | 1566 | if (intf->dev.power.power_state.event != PM_EVENT_ON) { |
1cfab028 | 1567 | mutex_unlock(&dev->lock); |
ff7c79e4 DB |
1568 | return -EHOSTUNREACH; |
1569 | } | |
1570 | ||
1da177e4 LT |
1571 | /* some devices, like ez-usb default devices, need a non-default |
1572 | * altsetting to have any active endpoints. some tests change | |
1573 | * altsettings; force a default so most tests don't need to check. | |
1574 | */ | |
1575 | if (dev->info->alt >= 0) { | |
1576 | int res; | |
1577 | ||
1578 | if (intf->altsetting->desc.bInterfaceNumber) { | |
1cfab028 | 1579 | mutex_unlock(&dev->lock); |
1da177e4 LT |
1580 | return -ENODEV; |
1581 | } | |
1582 | res = set_altsetting (dev, dev->info->alt); | |
1583 | if (res) { | |
1584 | dev_err (&intf->dev, | |
1585 | "set altsetting to %d failed, %d\n", | |
1586 | dev->info->alt, res); | |
1cfab028 | 1587 | mutex_unlock(&dev->lock); |
1da177e4 LT |
1588 | return res; |
1589 | } | |
1590 | } | |
1591 | ||
1592 | /* | |
1593 | * Just a bunch of test cases that every HCD is expected to handle. | |
1594 | * | |
1595 | * Some may need specific firmware, though it'd be good to have | |
1596 | * one firmware image to handle all the test cases. | |
1597 | * | |
1598 | * FIXME add more tests! cancel requests, verify the data, control | |
1599 | * queueing, concurrent read+write threads, and so on. | |
1600 | */ | |
1601 | do_gettimeofday (&start); | |
1602 | switch (param->test_num) { | |
1603 | ||
1604 | case 0: | |
1605 | dev_dbg (&intf->dev, "TEST 0: NOP\n"); | |
1606 | retval = 0; | |
1607 | break; | |
1608 | ||
1609 | /* Simple non-queued bulk I/O tests */ | |
1610 | case 1: | |
1611 | if (dev->out_pipe == 0) | |
1612 | break; | |
1613 | dev_dbg (&intf->dev, | |
1614 | "TEST 1: write %d bytes %u times\n", | |
1615 | param->length, param->iterations); | |
1616 | urb = simple_alloc_urb (udev, dev->out_pipe, param->length); | |
1617 | if (!urb) { | |
1618 | retval = -ENOMEM; | |
1619 | break; | |
1620 | } | |
1621 | // FIRMWARE: bulk sink (maybe accepts short writes) | |
1622 | retval = simple_io (urb, param->iterations, 0, 0, "test1"); | |
1623 | simple_free_urb (urb); | |
1624 | break; | |
1625 | case 2: | |
1626 | if (dev->in_pipe == 0) | |
1627 | break; | |
1628 | dev_dbg (&intf->dev, | |
1629 | "TEST 2: read %d bytes %u times\n", | |
1630 | param->length, param->iterations); | |
1631 | urb = simple_alloc_urb (udev, dev->in_pipe, param->length); | |
1632 | if (!urb) { | |
1633 | retval = -ENOMEM; | |
1634 | break; | |
1635 | } | |
1636 | // FIRMWARE: bulk source (maybe generates short writes) | |
1637 | retval = simple_io (urb, param->iterations, 0, 0, "test2"); | |
1638 | simple_free_urb (urb); | |
1639 | break; | |
1640 | case 3: | |
1641 | if (dev->out_pipe == 0 || param->vary == 0) | |
1642 | break; | |
1643 | dev_dbg (&intf->dev, | |
1644 | "TEST 3: write/%d 0..%d bytes %u times\n", | |
1645 | param->vary, param->length, param->iterations); | |
1646 | urb = simple_alloc_urb (udev, dev->out_pipe, param->length); | |
1647 | if (!urb) { | |
1648 | retval = -ENOMEM; | |
1649 | break; | |
1650 | } | |
1651 | // FIRMWARE: bulk sink (maybe accepts short writes) | |
1652 | retval = simple_io (urb, param->iterations, param->vary, | |
1653 | 0, "test3"); | |
1654 | simple_free_urb (urb); | |
1655 | break; | |
1656 | case 4: | |
1657 | if (dev->in_pipe == 0 || param->vary == 0) | |
1658 | break; | |
1659 | dev_dbg (&intf->dev, | |
1660 | "TEST 4: read/%d 0..%d bytes %u times\n", | |
1661 | param->vary, param->length, param->iterations); | |
1662 | urb = simple_alloc_urb (udev, dev->in_pipe, param->length); | |
1663 | if (!urb) { | |
1664 | retval = -ENOMEM; | |
1665 | break; | |
1666 | } | |
1667 | // FIRMWARE: bulk source (maybe generates short writes) | |
1668 | retval = simple_io (urb, param->iterations, param->vary, | |
1669 | 0, "test4"); | |
1670 | simple_free_urb (urb); | |
1671 | break; | |
1672 | ||
1673 | /* Queued bulk I/O tests */ | |
1674 | case 5: | |
1675 | if (dev->out_pipe == 0 || param->sglen == 0) | |
1676 | break; | |
1677 | dev_dbg (&intf->dev, | |
1678 | "TEST 5: write %d sglists %d entries of %d bytes\n", | |
1679 | param->iterations, | |
1680 | param->sglen, param->length); | |
1681 | sg = alloc_sglist (param->sglen, param->length, 0); | |
1682 | if (!sg) { | |
1683 | retval = -ENOMEM; | |
1684 | break; | |
1685 | } | |
1686 | // FIRMWARE: bulk sink (maybe accepts short writes) | |
1687 | retval = perform_sglist (udev, param->iterations, dev->out_pipe, | |
1688 | &req, sg, param->sglen); | |
1689 | free_sglist (sg, param->sglen); | |
1690 | break; | |
1691 | ||
1692 | case 6: | |
1693 | if (dev->in_pipe == 0 || param->sglen == 0) | |
1694 | break; | |
1695 | dev_dbg (&intf->dev, | |
1696 | "TEST 6: read %d sglists %d entries of %d bytes\n", | |
1697 | param->iterations, | |
1698 | param->sglen, param->length); | |
1699 | sg = alloc_sglist (param->sglen, param->length, 0); | |
1700 | if (!sg) { | |
1701 | retval = -ENOMEM; | |
1702 | break; | |
1703 | } | |
1704 | // FIRMWARE: bulk source (maybe generates short writes) | |
1705 | retval = perform_sglist (udev, param->iterations, dev->in_pipe, | |
1706 | &req, sg, param->sglen); | |
1707 | free_sglist (sg, param->sglen); | |
1708 | break; | |
1709 | case 7: | |
1710 | if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) | |
1711 | break; | |
1712 | dev_dbg (&intf->dev, | |
1713 | "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", | |
1714 | param->vary, param->iterations, | |
1715 | param->sglen, param->length); | |
1716 | sg = alloc_sglist (param->sglen, param->length, param->vary); | |
1717 | if (!sg) { | |
1718 | retval = -ENOMEM; | |
1719 | break; | |
1720 | } | |
1721 | // FIRMWARE: bulk sink (maybe accepts short writes) | |
1722 | retval = perform_sglist (udev, param->iterations, dev->out_pipe, | |
1723 | &req, sg, param->sglen); | |
1724 | free_sglist (sg, param->sglen); | |
1725 | break; | |
1726 | case 8: | |
1727 | if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) | |
1728 | break; | |
1729 | dev_dbg (&intf->dev, | |
1730 | "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", | |
1731 | param->vary, param->iterations, | |
1732 | param->sglen, param->length); | |
1733 | sg = alloc_sglist (param->sglen, param->length, param->vary); | |
1734 | if (!sg) { | |
1735 | retval = -ENOMEM; | |
1736 | break; | |
1737 | } | |
1738 | // FIRMWARE: bulk source (maybe generates short writes) | |
1739 | retval = perform_sglist (udev, param->iterations, dev->in_pipe, | |
1740 | &req, sg, param->sglen); | |
1741 | free_sglist (sg, param->sglen); | |
1742 | break; | |
1743 | ||
1744 | /* non-queued sanity tests for control (chapter 9 subset) */ | |
1745 | case 9: | |
1746 | retval = 0; | |
1747 | dev_dbg (&intf->dev, | |
1748 | "TEST 9: ch9 (subset) control tests, %d times\n", | |
1749 | param->iterations); | |
1750 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
1751 | retval = ch9_postconfig (dev); | |
1752 | if (retval) | |
1753 | dbg ("ch9 subset failed, iterations left %d", i); | |
1754 | break; | |
1755 | ||
1756 | /* queued control messaging */ | |
1757 | case 10: | |
1758 | if (param->sglen == 0) | |
1759 | break; | |
1760 | retval = 0; | |
1761 | dev_dbg (&intf->dev, | |
1762 | "TEST 10: queue %d control calls, %d times\n", | |
1763 | param->sglen, | |
1764 | param->iterations); | |
1765 | retval = test_ctrl_queue (dev, param); | |
1766 | break; | |
1767 | ||
1768 | /* simple non-queued unlinks (ring with one urb) */ | |
1769 | case 11: | |
1770 | if (dev->in_pipe == 0 || !param->length) | |
1771 | break; | |
1772 | retval = 0; | |
1773 | dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n", | |
1774 | param->iterations, param->length); | |
1775 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
1776 | retval = unlink_simple (dev, dev->in_pipe, | |
1777 | param->length); | |
1778 | if (retval) | |
1779 | dev_dbg (&intf->dev, "unlink reads failed %d, " | |
1780 | "iterations left %d\n", retval, i); | |
1781 | break; | |
1782 | case 12: | |
1783 | if (dev->out_pipe == 0 || !param->length) | |
1784 | break; | |
1785 | retval = 0; | |
1786 | dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n", | |
1787 | param->iterations, param->length); | |
1788 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
1789 | retval = unlink_simple (dev, dev->out_pipe, | |
1790 | param->length); | |
1791 | if (retval) | |
1792 | dev_dbg (&intf->dev, "unlink writes failed %d, " | |
1793 | "iterations left %d\n", retval, i); | |
1794 | break; | |
1795 | ||
1796 | /* ep halt tests */ | |
1797 | case 13: | |
1798 | if (dev->out_pipe == 0 && dev->in_pipe == 0) | |
1799 | break; | |
1800 | retval = 0; | |
1801 | dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n", | |
1802 | param->iterations); | |
1803 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
1804 | retval = halt_simple (dev); | |
1805 | ||
1806 | if (retval) | |
1807 | DBG (dev, "halts failed, iterations left %d\n", i); | |
1808 | break; | |
1809 | ||
1810 | /* control write tests */ | |
1811 | case 14: | |
1812 | if (!dev->info->ctrl_out) | |
1813 | break; | |
ff7c79e4 DB |
1814 | dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", |
1815 | param->iterations, | |
1816 | realworld ? 1 : 0, param->length, | |
1817 | param->vary); | |
1da177e4 LT |
1818 | retval = ctrl_out (dev, param->iterations, |
1819 | param->length, param->vary); | |
1820 | break; | |
1821 | ||
1822 | /* iso write tests */ | |
1823 | case 15: | |
1824 | if (dev->out_iso_pipe == 0 || param->sglen == 0) | |
1825 | break; | |
1826 | dev_dbg (&intf->dev, | |
1827 | "TEST 15: write %d iso, %d entries of %d bytes\n", | |
1828 | param->iterations, | |
1829 | param->sglen, param->length); | |
1830 | // FIRMWARE: iso sink | |
1831 | retval = test_iso_queue (dev, param, | |
1832 | dev->out_iso_pipe, dev->iso_out); | |
1833 | break; | |
1834 | ||
1835 | /* iso read tests */ | |
1836 | case 16: | |
1837 | if (dev->in_iso_pipe == 0 || param->sglen == 0) | |
1838 | break; | |
1839 | dev_dbg (&intf->dev, | |
1840 | "TEST 16: read %d iso, %d entries of %d bytes\n", | |
1841 | param->iterations, | |
1842 | param->sglen, param->length); | |
1843 | // FIRMWARE: iso source | |
1844 | retval = test_iso_queue (dev, param, | |
1845 | dev->in_iso_pipe, dev->iso_in); | |
1846 | break; | |
1847 | ||
1848 | // FIXME unlink from queue (ring with N urbs) | |
1849 | ||
1850 | // FIXME scatterlist cancel (needs helper thread) | |
1851 | ||
1852 | } | |
1853 | do_gettimeofday (¶m->duration); | |
1854 | param->duration.tv_sec -= start.tv_sec; | |
1855 | param->duration.tv_usec -= start.tv_usec; | |
1856 | if (param->duration.tv_usec < 0) { | |
1857 | param->duration.tv_usec += 1000 * 1000; | |
1858 | param->duration.tv_sec -= 1; | |
1859 | } | |
1cfab028 | 1860 | mutex_unlock(&dev->lock); |
1da177e4 LT |
1861 | return retval; |
1862 | } | |
1863 | ||
1864 | /*-------------------------------------------------------------------------*/ | |
1865 | ||
1866 | static unsigned force_interrupt = 0; | |
1867 | module_param (force_interrupt, uint, 0); | |
1868 | MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); | |
1869 | ||
1870 | #ifdef GENERIC | |
1871 | static unsigned short vendor; | |
1872 | module_param(vendor, ushort, 0); | |
1873 | MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); | |
1874 | ||
1875 | static unsigned short product; | |
1876 | module_param(product, ushort, 0); | |
1877 | MODULE_PARM_DESC (product, "product code (from vendor)"); | |
1878 | #endif | |
1879 | ||
1880 | static int | |
1881 | usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) | |
1882 | { | |
1883 | struct usb_device *udev; | |
1884 | struct usbtest_dev *dev; | |
1885 | struct usbtest_info *info; | |
1886 | char *rtest, *wtest; | |
1887 | char *irtest, *iwtest; | |
1888 | ||
1889 | udev = interface_to_usbdev (intf); | |
1890 | ||
1891 | #ifdef GENERIC | |
1892 | /* specify devices by module parameters? */ | |
1893 | if (id->match_flags == 0) { | |
1894 | /* vendor match required, product match optional */ | |
1895 | if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) | |
1896 | return -ENODEV; | |
1897 | if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) | |
1898 | return -ENODEV; | |
1899 | dbg ("matched module params, vend=0x%04x prod=0x%04x", | |
1900 | le16_to_cpu(udev->descriptor.idVendor), | |
1901 | le16_to_cpu(udev->descriptor.idProduct)); | |
1902 | } | |
1903 | #endif | |
1904 | ||
e94b1766 | 1905 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1da177e4 LT |
1906 | if (!dev) |
1907 | return -ENOMEM; | |
1da177e4 LT |
1908 | info = (struct usbtest_info *) id->driver_info; |
1909 | dev->info = info; | |
1cfab028 | 1910 | mutex_init(&dev->lock); |
1da177e4 LT |
1911 | |
1912 | dev->intf = intf; | |
1913 | ||
1914 | /* cacheline-aligned scratch for i/o */ | |
e94b1766 | 1915 | if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) { |
1da177e4 LT |
1916 | kfree (dev); |
1917 | return -ENOMEM; | |
1918 | } | |
1919 | ||
1920 | /* NOTE this doesn't yet test the handful of difference that are | |
1921 | * visible with high speed interrupts: bigger maxpacket (1K) and | |
1922 | * "high bandwidth" modes (up to 3 packets/uframe). | |
1923 | */ | |
1924 | rtest = wtest = ""; | |
1925 | irtest = iwtest = ""; | |
1926 | if (force_interrupt || udev->speed == USB_SPEED_LOW) { | |
1927 | if (info->ep_in) { | |
1928 | dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); | |
1929 | rtest = " intr-in"; | |
1930 | } | |
1931 | if (info->ep_out) { | |
1932 | dev->out_pipe = usb_sndintpipe (udev, info->ep_out); | |
1933 | wtest = " intr-out"; | |
1934 | } | |
1935 | } else { | |
1936 | if (info->autoconf) { | |
1937 | int status; | |
1938 | ||
1939 | status = get_endpoints (dev, intf); | |
1940 | if (status < 0) { | |
1941 | dbg ("couldn't get endpoints, %d\n", status); | |
1942 | return status; | |
1943 | } | |
1944 | /* may find bulk or ISO pipes */ | |
1945 | } else { | |
1946 | if (info->ep_in) | |
1947 | dev->in_pipe = usb_rcvbulkpipe (udev, | |
1948 | info->ep_in); | |
1949 | if (info->ep_out) | |
1950 | dev->out_pipe = usb_sndbulkpipe (udev, | |
1951 | info->ep_out); | |
1952 | } | |
1953 | if (dev->in_pipe) | |
1954 | rtest = " bulk-in"; | |
1955 | if (dev->out_pipe) | |
1956 | wtest = " bulk-out"; | |
1957 | if (dev->in_iso_pipe) | |
1958 | irtest = " iso-in"; | |
1959 | if (dev->out_iso_pipe) | |
1960 | iwtest = " iso-out"; | |
1961 | } | |
1962 | ||
1963 | usb_set_intfdata (intf, dev); | |
1964 | dev_info (&intf->dev, "%s\n", info->name); | |
1965 | dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", | |
1966 | ({ char *tmp; | |
1967 | switch (udev->speed) { | |
1968 | case USB_SPEED_LOW: tmp = "low"; break; | |
1969 | case USB_SPEED_FULL: tmp = "full"; break; | |
1970 | case USB_SPEED_HIGH: tmp = "high"; break; | |
1971 | default: tmp = "unknown"; break; | |
1972 | }; tmp; }), | |
1973 | info->ctrl_out ? " in/out" : "", | |
1974 | rtest, wtest, | |
1975 | irtest, iwtest, | |
1976 | info->alt >= 0 ? " (+alt)" : ""); | |
1977 | return 0; | |
1978 | } | |
1979 | ||
ff7c79e4 DB |
1980 | static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) |
1981 | { | |
ff7c79e4 DB |
1982 | return 0; |
1983 | } | |
1984 | ||
1985 | static int usbtest_resume (struct usb_interface *intf) | |
1986 | { | |
ff7c79e4 DB |
1987 | return 0; |
1988 | } | |
1989 | ||
1990 | ||
1da177e4 LT |
1991 | static void usbtest_disconnect (struct usb_interface *intf) |
1992 | { | |
1993 | struct usbtest_dev *dev = usb_get_intfdata (intf); | |
1994 | ||
1da177e4 LT |
1995 | usb_set_intfdata (intf, NULL); |
1996 | dev_dbg (&intf->dev, "disconnect\n"); | |
1997 | kfree (dev); | |
1998 | } | |
1999 | ||
2000 | /* Basic testing only needs a device that can source or sink bulk traffic. | |
2001 | * Any device can test control transfers (default with GENERIC binding). | |
2002 | * | |
2003 | * Several entries work with the default EP0 implementation that's built | |
2004 | * into EZ-USB chips. There's a default vendor ID which can be overridden | |
2005 | * by (very) small config EEPROMS, but otherwise all these devices act | |
2006 | * identically until firmware is loaded: only EP0 works. It turns out | |
2007 | * to be easy to make other endpoints work, without modifying that EP0 | |
2008 | * behavior. For now, we expect that kind of firmware. | |
2009 | */ | |
2010 | ||
2011 | /* an21xx or fx versions of ez-usb */ | |
2012 | static struct usbtest_info ez1_info = { | |
2013 | .name = "EZ-USB device", | |
2014 | .ep_in = 2, | |
2015 | .ep_out = 2, | |
2016 | .alt = 1, | |
2017 | }; | |
2018 | ||
2019 | /* fx2 version of ez-usb */ | |
2020 | static struct usbtest_info ez2_info = { | |
2021 | .name = "FX2 device", | |
2022 | .ep_in = 6, | |
2023 | .ep_out = 2, | |
2024 | .alt = 1, | |
2025 | }; | |
2026 | ||
2027 | /* ezusb family device with dedicated usb test firmware, | |
2028 | */ | |
2029 | static struct usbtest_info fw_info = { | |
2030 | .name = "usb test device", | |
2031 | .ep_in = 2, | |
2032 | .ep_out = 2, | |
2033 | .alt = 1, | |
2034 | .autoconf = 1, // iso and ctrl_out need autoconf | |
2035 | .ctrl_out = 1, | |
2036 | .iso = 1, // iso_ep's are #8 in/out | |
2037 | }; | |
2038 | ||
2039 | /* peripheral running Linux and 'zero.c' test firmware, or | |
2040 | * its user-mode cousin. different versions of this use | |
2041 | * different hardware with the same vendor/product codes. | |
2042 | * host side MUST rely on the endpoint descriptors. | |
2043 | */ | |
2044 | static struct usbtest_info gz_info = { | |
2045 | .name = "Linux gadget zero", | |
2046 | .autoconf = 1, | |
2047 | .ctrl_out = 1, | |
2048 | .alt = 0, | |
2049 | }; | |
2050 | ||
2051 | static struct usbtest_info um_info = { | |
2052 | .name = "Linux user mode test driver", | |
2053 | .autoconf = 1, | |
2054 | .alt = -1, | |
2055 | }; | |
2056 | ||
2057 | static struct usbtest_info um2_info = { | |
2058 | .name = "Linux user mode ISO test driver", | |
2059 | .autoconf = 1, | |
2060 | .iso = 1, | |
2061 | .alt = -1, | |
2062 | }; | |
2063 | ||
2064 | #ifdef IBOT2 | |
2065 | /* this is a nice source of high speed bulk data; | |
2066 | * uses an FX2, with firmware provided in the device | |
2067 | */ | |
2068 | static struct usbtest_info ibot2_info = { | |
2069 | .name = "iBOT2 webcam", | |
2070 | .ep_in = 2, | |
2071 | .alt = -1, | |
2072 | }; | |
2073 | #endif | |
2074 | ||
2075 | #ifdef GENERIC | |
2076 | /* we can use any device to test control traffic */ | |
2077 | static struct usbtest_info generic_info = { | |
2078 | .name = "Generic USB device", | |
2079 | .alt = -1, | |
2080 | }; | |
2081 | #endif | |
2082 | ||
2083 | // FIXME remove this | |
2084 | static struct usbtest_info hact_info = { | |
2085 | .name = "FX2/hact", | |
2086 | //.ep_in = 6, | |
2087 | .ep_out = 2, | |
2088 | .alt = -1, | |
2089 | }; | |
2090 | ||
2091 | ||
2092 | static struct usb_device_id id_table [] = { | |
2093 | ||
2094 | { USB_DEVICE (0x0547, 0x1002), | |
2095 | .driver_info = (unsigned long) &hact_info, | |
2096 | }, | |
2097 | ||
2098 | /*-------------------------------------------------------------*/ | |
2099 | ||
2100 | /* EZ-USB devices which download firmware to replace (or in our | |
2101 | * case augment) the default device implementation. | |
2102 | */ | |
2103 | ||
2104 | /* generic EZ-USB FX controller */ | |
2105 | { USB_DEVICE (0x0547, 0x2235), | |
2106 | .driver_info = (unsigned long) &ez1_info, | |
2107 | }, | |
2108 | ||
2109 | /* CY3671 development board with EZ-USB FX */ | |
2110 | { USB_DEVICE (0x0547, 0x0080), | |
2111 | .driver_info = (unsigned long) &ez1_info, | |
2112 | }, | |
2113 | ||
2114 | /* generic EZ-USB FX2 controller (or development board) */ | |
2115 | { USB_DEVICE (0x04b4, 0x8613), | |
2116 | .driver_info = (unsigned long) &ez2_info, | |
2117 | }, | |
2118 | ||
2119 | /* re-enumerated usb test device firmware */ | |
2120 | { USB_DEVICE (0xfff0, 0xfff0), | |
2121 | .driver_info = (unsigned long) &fw_info, | |
2122 | }, | |
2123 | ||
2124 | /* "Gadget Zero" firmware runs under Linux */ | |
2125 | { USB_DEVICE (0x0525, 0xa4a0), | |
2126 | .driver_info = (unsigned long) &gz_info, | |
2127 | }, | |
2128 | ||
2129 | /* so does a user-mode variant */ | |
2130 | { USB_DEVICE (0x0525, 0xa4a4), | |
2131 | .driver_info = (unsigned long) &um_info, | |
2132 | }, | |
2133 | ||
2134 | /* ... and a user-mode variant that talks iso */ | |
2135 | { USB_DEVICE (0x0525, 0xa4a3), | |
2136 | .driver_info = (unsigned long) &um2_info, | |
2137 | }, | |
2138 | ||
2139 | #ifdef KEYSPAN_19Qi | |
2140 | /* Keyspan 19qi uses an21xx (original EZ-USB) */ | |
2141 | // this does not coexist with the real Keyspan 19qi driver! | |
2142 | { USB_DEVICE (0x06cd, 0x010b), | |
2143 | .driver_info = (unsigned long) &ez1_info, | |
2144 | }, | |
2145 | #endif | |
2146 | ||
2147 | /*-------------------------------------------------------------*/ | |
2148 | ||
2149 | #ifdef IBOT2 | |
2150 | /* iBOT2 makes a nice source of high speed bulk-in data */ | |
2151 | // this does not coexist with a real iBOT2 driver! | |
2152 | { USB_DEVICE (0x0b62, 0x0059), | |
2153 | .driver_info = (unsigned long) &ibot2_info, | |
2154 | }, | |
2155 | #endif | |
2156 | ||
2157 | /*-------------------------------------------------------------*/ | |
2158 | ||
2159 | #ifdef GENERIC | |
2160 | /* module params can specify devices to use for control tests */ | |
2161 | { .driver_info = (unsigned long) &generic_info, }, | |
2162 | #endif | |
2163 | ||
2164 | /*-------------------------------------------------------------*/ | |
2165 | ||
2166 | { } | |
2167 | }; | |
2168 | MODULE_DEVICE_TABLE (usb, id_table); | |
2169 | ||
2170 | static struct usb_driver usbtest_driver = { | |
1da177e4 LT |
2171 | .name = "usbtest", |
2172 | .id_table = id_table, | |
2173 | .probe = usbtest_probe, | |
2174 | .ioctl = usbtest_ioctl, | |
2175 | .disconnect = usbtest_disconnect, | |
ff7c79e4 DB |
2176 | .suspend = usbtest_suspend, |
2177 | .resume = usbtest_resume, | |
1da177e4 LT |
2178 | }; |
2179 | ||
2180 | /*-------------------------------------------------------------------------*/ | |
2181 | ||
2182 | static int __init usbtest_init (void) | |
2183 | { | |
2184 | #ifdef GENERIC | |
2185 | if (vendor) | |
2186 | dbg ("params: vend=0x%04x prod=0x%04x", vendor, product); | |
2187 | #endif | |
2188 | return usb_register (&usbtest_driver); | |
2189 | } | |
2190 | module_init (usbtest_init); | |
2191 | ||
2192 | static void __exit usbtest_exit (void) | |
2193 | { | |
2194 | usb_deregister (&usbtest_driver); | |
2195 | } | |
2196 | module_exit (usbtest_exit); | |
2197 | ||
2198 | MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); | |
2199 | MODULE_LICENSE ("GPL"); | |
2200 |