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Commit | Line | Data |
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5fd54ace | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | #include <linux/kernel.h> |
3 | #include <linux/errno.h> | |
4 | #include <linux/init.h> | |
5 | #include <linux/slab.h> | |
6 | #include <linux/mm.h> | |
7 | #include <linux/module.h> | |
8 | #include <linux/moduleparam.h> | |
378f058c | 9 | #include <linux/scatterlist.h> |
1cfab028 | 10 | #include <linux/mutex.h> |
32b36eea | 11 | #include <linux/timer.h> |
1da177e4 LT |
12 | #include <linux/usb.h> |
13 | ||
e5e47465 | 14 | #define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */ |
1da177e4 | 15 | |
d0b4652f AS |
16 | /*-------------------------------------------------------------------------*/ |
17 | ||
18 | static int override_alt = -1; | |
19 | module_param_named(alt, override_alt, int, 0644); | |
20 | MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection"); | |
145f48c5 | 21 | static void complicated_callback(struct urb *urb); |
d0b4652f | 22 | |
1da177e4 LT |
23 | /*-------------------------------------------------------------------------*/ |
24 | ||
fabbf219 | 25 | /* FIXME make these public somewhere; usbdevfs.h? */ |
18fc4ebd DD |
26 | |
27 | /* Parameter for usbtest driver. */ | |
28 | struct usbtest_param_32 { | |
fabbf219 | 29 | /* inputs */ |
18fc4ebd DD |
30 | __u32 test_num; /* 0..(TEST_CASES-1) */ |
31 | __u32 iterations; | |
32 | __u32 length; | |
33 | __u32 vary; | |
34 | __u32 sglen; | |
1da177e4 | 35 | |
fabbf219 | 36 | /* outputs */ |
18fc4ebd DD |
37 | __s32 duration_sec; |
38 | __s32 duration_usec; | |
1da177e4 | 39 | }; |
18fc4ebd DD |
40 | |
41 | /* | |
42 | * Compat parameter to the usbtest driver. | |
43 | * This supports older user space binaries compiled with 64 bit compiler. | |
44 | */ | |
45 | struct usbtest_param_64 { | |
46 | /* inputs */ | |
47 | __u32 test_num; /* 0..(TEST_CASES-1) */ | |
48 | __u32 iterations; | |
49 | __u32 length; | |
50 | __u32 vary; | |
51 | __u32 sglen; | |
52 | ||
53 | /* outputs */ | |
54 | __s64 duration_sec; | |
55 | __s64 duration_usec; | |
56 | }; | |
57 | ||
58 | /* IOCTL interface to the driver. */ | |
59 | #define USBTEST_REQUEST_32 _IOWR('U', 100, struct usbtest_param_32) | |
60 | /* COMPAT IOCTL interface to the driver. */ | |
61 | #define USBTEST_REQUEST_64 _IOWR('U', 100, struct usbtest_param_64) | |
1da177e4 LT |
62 | |
63 | /*-------------------------------------------------------------------------*/ | |
64 | ||
65 | #define GENERIC /* let probe() bind using module params */ | |
66 | ||
67 | /* Some devices that can be used for testing will have "real" drivers. | |
68 | * Entries for those need to be enabled here by hand, after disabling | |
69 | * that "real" driver. | |
70 | */ | |
71 | //#define IBOT2 /* grab iBOT2 webcams */ | |
72 | //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */ | |
73 | ||
74 | /*-------------------------------------------------------------------------*/ | |
75 | ||
76 | struct usbtest_info { | |
77 | const char *name; | |
78 | u8 ep_in; /* bulk/intr source */ | |
79 | u8 ep_out; /* bulk/intr sink */ | |
fabbf219 MF |
80 | unsigned autoconf:1; |
81 | unsigned ctrl_out:1; | |
82 | unsigned iso:1; /* try iso in/out */ | |
457a0955 | 83 | unsigned intr:1; /* try interrupt in/out */ |
1da177e4 LT |
84 | int alt; |
85 | }; | |
86 | ||
87 | /* this is accessed only through usbfs ioctl calls. | |
88 | * one ioctl to issue a test ... one lock per device. | |
89 | * tests create other threads if they need them. | |
90 | * urbs and buffers are allocated dynamically, | |
91 | * and data generated deterministically. | |
92 | */ | |
93 | struct usbtest_dev { | |
94 | struct usb_interface *intf; | |
95 | struct usbtest_info *info; | |
96 | int in_pipe; | |
97 | int out_pipe; | |
98 | int in_iso_pipe; | |
99 | int out_iso_pipe; | |
457a0955 AV |
100 | int in_int_pipe; |
101 | int out_int_pipe; | |
1da177e4 | 102 | struct usb_endpoint_descriptor *iso_in, *iso_out; |
457a0955 | 103 | struct usb_endpoint_descriptor *int_in, *int_out; |
1cfab028 | 104 | struct mutex lock; |
1da177e4 LT |
105 | |
106 | #define TBUF_SIZE 256 | |
107 | u8 *buf; | |
108 | }; | |
109 | ||
fabbf219 | 110 | static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test) |
1da177e4 | 111 | { |
fabbf219 | 112 | return interface_to_usbdev(test->intf); |
1da177e4 LT |
113 | } |
114 | ||
115 | /* set up all urbs so they can be used with either bulk or interrupt */ | |
116 | #define INTERRUPT_RATE 1 /* msec/transfer */ | |
117 | ||
28ffd79c DB |
118 | #define ERROR(tdev, fmt, args...) \ |
119 | dev_err(&(tdev)->intf->dev , fmt , ## args) | |
b6c63937 | 120 | #define WARNING(tdev, fmt, args...) \ |
28ffd79c | 121 | dev_warn(&(tdev)->intf->dev , fmt , ## args) |
1da177e4 | 122 | |
084fb206 | 123 | #define GUARD_BYTE 0xA5 |
41d3c0b8 | 124 | #define MAX_SGLEN 128 |
084fb206 | 125 | |
1da177e4 LT |
126 | /*-------------------------------------------------------------------------*/ |
127 | ||
65c7843c GS |
128 | static inline void endpoint_update(int edi, |
129 | struct usb_host_endpoint **in, | |
130 | struct usb_host_endpoint **out, | |
131 | struct usb_host_endpoint *e) | |
132 | { | |
133 | if (edi) { | |
134 | if (!*in) | |
135 | *in = e; | |
136 | } else { | |
137 | if (!*out) | |
138 | *out = e; | |
139 | } | |
140 | } | |
141 | ||
1da177e4 | 142 | static int |
fabbf219 | 143 | get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) |
1da177e4 LT |
144 | { |
145 | int tmp; | |
146 | struct usb_host_interface *alt; | |
147 | struct usb_host_endpoint *in, *out; | |
148 | struct usb_host_endpoint *iso_in, *iso_out; | |
457a0955 | 149 | struct usb_host_endpoint *int_in, *int_out; |
1da177e4 LT |
150 | struct usb_device *udev; |
151 | ||
152 | for (tmp = 0; tmp < intf->num_altsetting; tmp++) { | |
153 | unsigned ep; | |
154 | ||
155 | in = out = NULL; | |
156 | iso_in = iso_out = NULL; | |
457a0955 | 157 | int_in = int_out = NULL; |
1da177e4 LT |
158 | alt = intf->altsetting + tmp; |
159 | ||
d0b4652f AS |
160 | if (override_alt >= 0 && |
161 | override_alt != alt->desc.bAlternateSetting) | |
162 | continue; | |
163 | ||
1da177e4 | 164 | /* take the first altsetting with in-bulk + out-bulk; |
70f23fd6 | 165 | * ignore other endpoints and altsettings. |
1da177e4 LT |
166 | */ |
167 | for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { | |
168 | struct usb_host_endpoint *e; | |
65c7843c | 169 | int edi; |
1da177e4 LT |
170 | |
171 | e = alt->endpoint + ep; | |
65c7843c GS |
172 | edi = usb_endpoint_dir_in(&e->desc); |
173 | ||
9a37a503 | 174 | switch (usb_endpoint_type(&e->desc)) { |
1da177e4 | 175 | case USB_ENDPOINT_XFER_BULK: |
65c7843c GS |
176 | endpoint_update(edi, &in, &out, e); |
177 | continue; | |
457a0955 AV |
178 | case USB_ENDPOINT_XFER_INT: |
179 | if (dev->info->intr) | |
65c7843c | 180 | endpoint_update(edi, &int_in, &int_out, e); |
2c930e3d | 181 | continue; |
1da177e4 LT |
182 | case USB_ENDPOINT_XFER_ISOC: |
183 | if (dev->info->iso) | |
65c7843c | 184 | endpoint_update(edi, &iso_in, &iso_out, e); |
fabbf219 | 185 | /* FALLTHROUGH */ |
1da177e4 LT |
186 | default: |
187 | continue; | |
188 | } | |
1da177e4 | 189 | } |
457a0955 | 190 | if ((in && out) || iso_in || iso_out || int_in || int_out) |
1da177e4 LT |
191 | goto found; |
192 | } | |
193 | return -EINVAL; | |
194 | ||
195 | found: | |
fabbf219 | 196 | udev = testdev_to_usbdev(dev); |
d0b4652f | 197 | dev->info->alt = alt->desc.bAlternateSetting; |
1da177e4 | 198 | if (alt->desc.bAlternateSetting != 0) { |
fabbf219 | 199 | tmp = usb_set_interface(udev, |
1da177e4 LT |
200 | alt->desc.bInterfaceNumber, |
201 | alt->desc.bAlternateSetting); | |
202 | if (tmp < 0) | |
203 | return tmp; | |
204 | } | |
205 | ||
7c80f9e4 | 206 | if (in) |
fabbf219 | 207 | dev->in_pipe = usb_rcvbulkpipe(udev, |
1da177e4 | 208 | in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); |
7c80f9e4 | 209 | if (out) |
fabbf219 | 210 | dev->out_pipe = usb_sndbulkpipe(udev, |
1da177e4 | 211 | out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); |
7c80f9e4 | 212 | |
1da177e4 LT |
213 | if (iso_in) { |
214 | dev->iso_in = &iso_in->desc; | |
fabbf219 | 215 | dev->in_iso_pipe = usb_rcvisocpipe(udev, |
1da177e4 LT |
216 | iso_in->desc.bEndpointAddress |
217 | & USB_ENDPOINT_NUMBER_MASK); | |
951fd8ee ML |
218 | } |
219 | ||
220 | if (iso_out) { | |
1da177e4 | 221 | dev->iso_out = &iso_out->desc; |
fabbf219 | 222 | dev->out_iso_pipe = usb_sndisocpipe(udev, |
1da177e4 LT |
223 | iso_out->desc.bEndpointAddress |
224 | & USB_ENDPOINT_NUMBER_MASK); | |
225 | } | |
457a0955 AV |
226 | |
227 | if (int_in) { | |
228 | dev->int_in = &int_in->desc; | |
229 | dev->in_int_pipe = usb_rcvintpipe(udev, | |
230 | int_in->desc.bEndpointAddress | |
231 | & USB_ENDPOINT_NUMBER_MASK); | |
232 | } | |
233 | ||
234 | if (int_out) { | |
235 | dev->int_out = &int_out->desc; | |
236 | dev->out_int_pipe = usb_sndintpipe(udev, | |
237 | int_out->desc.bEndpointAddress | |
238 | & USB_ENDPOINT_NUMBER_MASK); | |
239 | } | |
1da177e4 LT |
240 | return 0; |
241 | } | |
242 | ||
243 | /*-------------------------------------------------------------------------*/ | |
244 | ||
245 | /* Support for testing basic non-queued I/O streams. | |
246 | * | |
247 | * These just package urbs as requests that can be easily canceled. | |
248 | * Each urb's data buffer is dynamically allocated; callers can fill | |
249 | * them with non-zero test data (or test for it) when appropriate. | |
250 | */ | |
251 | ||
fabbf219 | 252 | static void simple_callback(struct urb *urb) |
1da177e4 | 253 | { |
cdc97792 | 254 | complete(urb->context); |
1da177e4 LT |
255 | } |
256 | ||
084fb206 | 257 | static struct urb *usbtest_alloc_urb( |
1da177e4 LT |
258 | struct usb_device *udev, |
259 | int pipe, | |
084fb206 MF |
260 | unsigned long bytes, |
261 | unsigned transfer_flags, | |
457a0955 | 262 | unsigned offset, |
145f48c5 PC |
263 | u8 bInterval, |
264 | usb_complete_t complete_fn) | |
1da177e4 LT |
265 | { |
266 | struct urb *urb; | |
267 | ||
fabbf219 | 268 | urb = usb_alloc_urb(0, GFP_KERNEL); |
1da177e4 LT |
269 | if (!urb) |
270 | return urb; | |
457a0955 AV |
271 | |
272 | if (bInterval) | |
145f48c5 | 273 | usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn, |
457a0955 AV |
274 | NULL, bInterval); |
275 | else | |
145f48c5 | 276 | usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn, |
457a0955 AV |
277 | NULL); |
278 | ||
1da177e4 LT |
279 | urb->interval = (udev->speed == USB_SPEED_HIGH) |
280 | ? (INTERRUPT_RATE << 3) | |
281 | : INTERRUPT_RATE; | |
084fb206 | 282 | urb->transfer_flags = transfer_flags; |
fabbf219 | 283 | if (usb_pipein(pipe)) |
1da177e4 | 284 | urb->transfer_flags |= URB_SHORT_NOT_OK; |
084fb206 | 285 | |
26186e5f CY |
286 | if ((bytes + offset) == 0) |
287 | return urb; | |
288 | ||
084fb206 MF |
289 | if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) |
290 | urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset, | |
291 | GFP_KERNEL, &urb->transfer_dma); | |
292 | else | |
293 | urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL); | |
294 | ||
1da177e4 | 295 | if (!urb->transfer_buffer) { |
fabbf219 | 296 | usb_free_urb(urb); |
084fb206 MF |
297 | return NULL; |
298 | } | |
299 | ||
300 | /* To test unaligned transfers add an offset and fill the | |
301 | unused memory with a guard value */ | |
302 | if (offset) { | |
303 | memset(urb->transfer_buffer, GUARD_BYTE, offset); | |
304 | urb->transfer_buffer += offset; | |
305 | if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) | |
306 | urb->transfer_dma += offset; | |
307 | } | |
308 | ||
309 | /* For inbound transfers use guard byte so that test fails if | |
310 | data not correctly copied */ | |
311 | memset(urb->transfer_buffer, | |
312 | usb_pipein(urb->pipe) ? GUARD_BYTE : 0, | |
313 | bytes); | |
1da177e4 LT |
314 | return urb; |
315 | } | |
316 | ||
084fb206 MF |
317 | static struct urb *simple_alloc_urb( |
318 | struct usb_device *udev, | |
319 | int pipe, | |
457a0955 AV |
320 | unsigned long bytes, |
321 | u8 bInterval) | |
084fb206 | 322 | { |
457a0955 | 323 | return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0, |
145f48c5 PC |
324 | bInterval, simple_callback); |
325 | } | |
326 | ||
327 | static struct urb *complicated_alloc_urb( | |
328 | struct usb_device *udev, | |
329 | int pipe, | |
330 | unsigned long bytes, | |
331 | u8 bInterval) | |
332 | { | |
333 | return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0, | |
334 | bInterval, complicated_callback); | |
084fb206 MF |
335 | } |
336 | ||
fabbf219 | 337 | static unsigned pattern; |
7f4e9854 VP |
338 | static unsigned mod_pattern; |
339 | module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR); | |
340 | MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)"); | |
1da177e4 | 341 | |
b9a6e8e1 AS |
342 | static unsigned get_maxpacket(struct usb_device *udev, int pipe) |
343 | { | |
344 | struct usb_host_endpoint *ep; | |
345 | ||
346 | ep = usb_pipe_endpoint(udev, pipe); | |
347 | return le16_to_cpup(&ep->desc.wMaxPacketSize); | |
348 | } | |
349 | ||
350 | static void simple_fill_buf(struct urb *urb) | |
1da177e4 LT |
351 | { |
352 | unsigned i; | |
353 | u8 *buf = urb->transfer_buffer; | |
354 | unsigned len = urb->transfer_buffer_length; | |
b9a6e8e1 | 355 | unsigned maxpacket; |
1da177e4 LT |
356 | |
357 | switch (pattern) { | |
358 | default: | |
fabbf219 | 359 | /* FALLTHROUGH */ |
1da177e4 | 360 | case 0: |
fabbf219 | 361 | memset(buf, 0, len); |
1da177e4 LT |
362 | break; |
363 | case 1: /* mod63 */ | |
b9a6e8e1 | 364 | maxpacket = get_maxpacket(urb->dev, urb->pipe); |
1da177e4 | 365 | for (i = 0; i < len; i++) |
b9a6e8e1 | 366 | *buf++ = (u8) ((i % maxpacket) % 63); |
1da177e4 LT |
367 | break; |
368 | } | |
369 | } | |
370 | ||
304b0b57 | 371 | static inline unsigned long buffer_offset(void *buf) |
084fb206 | 372 | { |
304b0b57 | 373 | return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1); |
084fb206 MF |
374 | } |
375 | ||
376 | static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb) | |
377 | { | |
378 | u8 *buf = urb->transfer_buffer; | |
379 | u8 *guard = buf - buffer_offset(buf); | |
380 | unsigned i; | |
381 | ||
382 | for (i = 0; guard < buf; i++, guard++) { | |
383 | if (*guard != GUARD_BYTE) { | |
384 | ERROR(tdev, "guard byte[%d] %d (not %d)\n", | |
385 | i, *guard, GUARD_BYTE); | |
386 | return -EINVAL; | |
387 | } | |
388 | } | |
389 | return 0; | |
390 | } | |
391 | ||
392 | static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb) | |
1da177e4 LT |
393 | { |
394 | unsigned i; | |
395 | u8 expected; | |
396 | u8 *buf = urb->transfer_buffer; | |
397 | unsigned len = urb->actual_length; | |
b9a6e8e1 | 398 | unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe); |
1da177e4 | 399 | |
084fb206 MF |
400 | int ret = check_guard_bytes(tdev, urb); |
401 | if (ret) | |
402 | return ret; | |
403 | ||
1da177e4 LT |
404 | for (i = 0; i < len; i++, buf++) { |
405 | switch (pattern) { | |
406 | /* all-zeroes has no synchronization issues */ | |
407 | case 0: | |
408 | expected = 0; | |
409 | break; | |
410 | /* mod63 stays in sync with short-terminated transfers, | |
411 | * or otherwise when host and gadget agree on how large | |
412 | * each usb transfer request should be. resync is done | |
413 | * with set_interface or set_config. | |
414 | */ | |
415 | case 1: /* mod63 */ | |
b9a6e8e1 | 416 | expected = (i % maxpacket) % 63; |
1da177e4 LT |
417 | break; |
418 | /* always fail unsupported patterns */ | |
419 | default: | |
420 | expected = !*buf; | |
421 | break; | |
422 | } | |
423 | if (*buf == expected) | |
424 | continue; | |
28ffd79c | 425 | ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected); |
1da177e4 LT |
426 | return -EINVAL; |
427 | } | |
428 | return 0; | |
429 | } | |
430 | ||
fabbf219 | 431 | static void simple_free_urb(struct urb *urb) |
1da177e4 | 432 | { |
304b0b57 | 433 | unsigned long offset = buffer_offset(urb->transfer_buffer); |
084fb206 MF |
434 | |
435 | if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) | |
436 | usb_free_coherent( | |
437 | urb->dev, | |
438 | urb->transfer_buffer_length + offset, | |
439 | urb->transfer_buffer - offset, | |
440 | urb->transfer_dma - offset); | |
441 | else | |
442 | kfree(urb->transfer_buffer - offset); | |
fabbf219 | 443 | usb_free_urb(urb); |
1da177e4 LT |
444 | } |
445 | ||
fabbf219 | 446 | static int simple_io( |
28ffd79c | 447 | struct usbtest_dev *tdev, |
1da177e4 LT |
448 | struct urb *urb, |
449 | int iterations, | |
450 | int vary, | |
451 | int expected, | |
452 | const char *label | |
453 | ) | |
454 | { | |
455 | struct usb_device *udev = urb->dev; | |
456 | int max = urb->transfer_buffer_length; | |
457 | struct completion completion; | |
458 | int retval = 0; | |
e5e47465 | 459 | unsigned long expire; |
1da177e4 LT |
460 | |
461 | urb->context = &completion; | |
462 | while (retval == 0 && iterations-- > 0) { | |
fabbf219 | 463 | init_completion(&completion); |
7c79d094 | 464 | if (usb_pipeout(urb->pipe)) { |
fabbf219 | 465 | simple_fill_buf(urb); |
7c79d094 SAS |
466 | urb->transfer_flags |= URB_ZERO_PACKET; |
467 | } | |
fabbf219 MF |
468 | retval = usb_submit_urb(urb, GFP_KERNEL); |
469 | if (retval != 0) | |
1da177e4 LT |
470 | break; |
471 | ||
e5e47465 RQ |
472 | expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT); |
473 | if (!wait_for_completion_timeout(&completion, expire)) { | |
474 | usb_kill_urb(urb); | |
475 | retval = (urb->status == -ENOENT ? | |
476 | -ETIMEDOUT : urb->status); | |
477 | } else { | |
478 | retval = urb->status; | |
479 | } | |
480 | ||
1da177e4 | 481 | urb->dev = udev; |
fabbf219 | 482 | if (retval == 0 && usb_pipein(urb->pipe)) |
28ffd79c | 483 | retval = simple_check_buf(tdev, urb); |
1da177e4 LT |
484 | |
485 | if (vary) { | |
486 | int len = urb->transfer_buffer_length; | |
487 | ||
488 | len += vary; | |
489 | len %= max; | |
490 | if (len == 0) | |
491 | len = (vary < max) ? vary : max; | |
492 | urb->transfer_buffer_length = len; | |
493 | } | |
494 | ||
495 | /* FIXME if endpoint halted, clear halt (and log) */ | |
496 | } | |
497 | urb->transfer_buffer_length = max; | |
498 | ||
499 | if (expected != retval) | |
28ffd79c | 500 | dev_err(&udev->dev, |
1da177e4 LT |
501 | "%s failed, iterations left %d, status %d (not %d)\n", |
502 | label, iterations, retval, expected); | |
503 | return retval; | |
504 | } | |
505 | ||
506 | ||
507 | /*-------------------------------------------------------------------------*/ | |
508 | ||
509 | /* We use scatterlist primitives to test queued I/O. | |
510 | * Yes, this also tests the scatterlist primitives. | |
511 | */ | |
512 | ||
fabbf219 | 513 | static void free_sglist(struct scatterlist *sg, int nents) |
1da177e4 LT |
514 | { |
515 | unsigned i; | |
28ffd79c | 516 | |
1da177e4 LT |
517 | if (!sg) |
518 | return; | |
519 | for (i = 0; i < nents; i++) { | |
45711f1a | 520 | if (!sg_page(&sg[i])) |
1da177e4 | 521 | continue; |
fabbf219 | 522 | kfree(sg_virt(&sg[i])); |
1da177e4 | 523 | } |
fabbf219 | 524 | kfree(sg); |
1da177e4 LT |
525 | } |
526 | ||
527 | static struct scatterlist * | |
b9a6e8e1 | 528 | alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe) |
1da177e4 LT |
529 | { |
530 | struct scatterlist *sg; | |
cdc77c82 | 531 | unsigned int n_size = 0; |
1da177e4 LT |
532 | unsigned i; |
533 | unsigned size = max; | |
b9a6e8e1 AS |
534 | unsigned maxpacket = |
535 | get_maxpacket(interface_to_usbdev(dev->intf), pipe); | |
1da177e4 | 536 | |
564e6989 DC |
537 | if (max == 0) |
538 | return NULL; | |
539 | ||
f55055b4 | 540 | sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL); |
1da177e4 LT |
541 | if (!sg) |
542 | return NULL; | |
4756febb | 543 | sg_init_table(sg, nents); |
1da177e4 LT |
544 | |
545 | for (i = 0; i < nents; i++) { | |
546 | char *buf; | |
8b524901 | 547 | unsigned j; |
1da177e4 | 548 | |
fabbf219 | 549 | buf = kzalloc(size, GFP_KERNEL); |
1da177e4 | 550 | if (!buf) { |
fabbf219 | 551 | free_sglist(sg, i); |
1da177e4 LT |
552 | return NULL; |
553 | } | |
1da177e4 LT |
554 | |
555 | /* kmalloc pages are always physically contiguous! */ | |
4756febb | 556 | sg_set_buf(&sg[i], buf, size); |
1da177e4 | 557 | |
8b524901 DB |
558 | switch (pattern) { |
559 | case 0: | |
560 | /* already zeroed */ | |
561 | break; | |
562 | case 1: | |
563 | for (j = 0; j < size; j++) | |
cdc77c82 MN |
564 | *buf++ = (u8) (((j + n_size) % maxpacket) % 63); |
565 | n_size += size; | |
8b524901 DB |
566 | break; |
567 | } | |
568 | ||
1da177e4 LT |
569 | if (vary) { |
570 | size += vary; | |
571 | size %= max; | |
572 | if (size == 0) | |
573 | size = (vary < max) ? vary : max; | |
574 | } | |
575 | } | |
576 | ||
577 | return sg; | |
578 | } | |
579 | ||
7d221856 KC |
580 | struct sg_timeout { |
581 | struct timer_list timer; | |
582 | struct usb_sg_request *req; | |
583 | }; | |
584 | ||
585 | static void sg_timeout(struct timer_list *t) | |
32b36eea | 586 | { |
7d221856 | 587 | struct sg_timeout *timeout = from_timer(timeout, t, timer); |
32b36eea | 588 | |
7d221856 | 589 | usb_sg_cancel(timeout->req); |
32b36eea AS |
590 | } |
591 | ||
fabbf219 | 592 | static int perform_sglist( |
28ffd79c | 593 | struct usbtest_dev *tdev, |
1da177e4 LT |
594 | unsigned iterations, |
595 | int pipe, | |
596 | struct usb_sg_request *req, | |
597 | struct scatterlist *sg, | |
598 | int nents | |
599 | ) | |
600 | { | |
28ffd79c | 601 | struct usb_device *udev = testdev_to_usbdev(tdev); |
1da177e4 | 602 | int retval = 0; |
7d221856 KC |
603 | struct sg_timeout timeout = { |
604 | .req = req, | |
605 | }; | |
32b36eea | 606 | |
7d221856 | 607 | timer_setup_on_stack(&timeout.timer, sg_timeout, 0); |
1da177e4 LT |
608 | |
609 | while (retval == 0 && iterations-- > 0) { | |
fabbf219 | 610 | retval = usb_sg_init(req, udev, pipe, |
1da177e4 LT |
611 | (udev->speed == USB_SPEED_HIGH) |
612 | ? (INTERRUPT_RATE << 3) | |
613 | : INTERRUPT_RATE, | |
e94b1766 | 614 | sg, nents, 0, GFP_KERNEL); |
28ffd79c | 615 | |
1da177e4 LT |
616 | if (retval) |
617 | break; | |
7d221856 | 618 | mod_timer(&timeout.timer, jiffies + |
32b36eea | 619 | msecs_to_jiffies(SIMPLE_IO_TIMEOUT)); |
fabbf219 | 620 | usb_sg_wait(req); |
7d221856 | 621 | if (!del_timer_sync(&timeout.timer)) |
53958751 LB |
622 | retval = -ETIMEDOUT; |
623 | else | |
624 | retval = req->status; | |
7d221856 | 625 | destroy_timer_on_stack(&timeout.timer); |
1da177e4 | 626 | |
8b524901 DB |
627 | /* FIXME check resulting data pattern */ |
628 | ||
1da177e4 LT |
629 | /* FIXME if endpoint halted, clear halt (and log) */ |
630 | } | |
631 | ||
fabbf219 MF |
632 | /* FIXME for unlink or fault handling tests, don't report |
633 | * failure if retval is as we expected ... | |
634 | */ | |
1da177e4 | 635 | if (retval) |
28ffd79c DB |
636 | ERROR(tdev, "perform_sglist failed, " |
637 | "iterations left %d, status %d\n", | |
1da177e4 LT |
638 | iterations, retval); |
639 | return retval; | |
640 | } | |
641 | ||
642 | ||
643 | /*-------------------------------------------------------------------------*/ | |
644 | ||
645 | /* unqueued control message testing | |
646 | * | |
647 | * there's a nice set of device functional requirements in chapter 9 of the | |
648 | * usb 2.0 spec, which we can apply to ANY device, even ones that don't use | |
649 | * special test firmware. | |
650 | * | |
651 | * we know the device is configured (or suspended) by the time it's visible | |
652 | * through usbfs. we can't change that, so we won't test enumeration (which | |
653 | * worked 'well enough' to get here, this time), power management (ditto), | |
654 | * or remote wakeup (which needs human interaction). | |
655 | */ | |
656 | ||
657 | static unsigned realworld = 1; | |
fabbf219 MF |
658 | module_param(realworld, uint, 0); |
659 | MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance"); | |
1da177e4 | 660 | |
fabbf219 | 661 | static int get_altsetting(struct usbtest_dev *dev) |
1da177e4 LT |
662 | { |
663 | struct usb_interface *iface = dev->intf; | |
fabbf219 | 664 | struct usb_device *udev = interface_to_usbdev(iface); |
1da177e4 LT |
665 | int retval; |
666 | ||
fabbf219 | 667 | retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
1da177e4 | 668 | USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, |
fabbf219 | 669 | 0, iface->altsetting[0].desc.bInterfaceNumber, |
1da177e4 LT |
670 | dev->buf, 1, USB_CTRL_GET_TIMEOUT); |
671 | switch (retval) { | |
672 | case 1: | |
fabbf219 | 673 | return dev->buf[0]; |
1da177e4 LT |
674 | case 0: |
675 | retval = -ERANGE; | |
fabbf219 | 676 | /* FALLTHROUGH */ |
1da177e4 LT |
677 | default: |
678 | return retval; | |
679 | } | |
680 | } | |
681 | ||
fabbf219 | 682 | static int set_altsetting(struct usbtest_dev *dev, int alternate) |
1da177e4 LT |
683 | { |
684 | struct usb_interface *iface = dev->intf; | |
685 | struct usb_device *udev; | |
686 | ||
687 | if (alternate < 0 || alternate >= 256) | |
688 | return -EINVAL; | |
689 | ||
fabbf219 MF |
690 | udev = interface_to_usbdev(iface); |
691 | return usb_set_interface(udev, | |
692 | iface->altsetting[0].desc.bInterfaceNumber, | |
1da177e4 LT |
693 | alternate); |
694 | } | |
695 | ||
28ffd79c | 696 | static int is_good_config(struct usbtest_dev *tdev, int len) |
1da177e4 LT |
697 | { |
698 | struct usb_config_descriptor *config; | |
28ffd79c | 699 | |
f55055b4 | 700 | if (len < sizeof(*config)) |
1da177e4 | 701 | return 0; |
28ffd79c | 702 | config = (struct usb_config_descriptor *) tdev->buf; |
1da177e4 LT |
703 | |
704 | switch (config->bDescriptorType) { | |
705 | case USB_DT_CONFIG: | |
706 | case USB_DT_OTHER_SPEED_CONFIG: | |
707 | if (config->bLength != 9) { | |
28ffd79c | 708 | ERROR(tdev, "bogus config descriptor length\n"); |
1da177e4 LT |
709 | return 0; |
710 | } | |
711 | /* this bit 'must be 1' but often isn't */ | |
712 | if (!realworld && !(config->bmAttributes & 0x80)) { | |
28ffd79c | 713 | ERROR(tdev, "high bit of config attributes not set\n"); |
1da177e4 LT |
714 | return 0; |
715 | } | |
716 | if (config->bmAttributes & 0x1f) { /* reserved == 0 */ | |
28ffd79c | 717 | ERROR(tdev, "reserved config bits set\n"); |
1da177e4 LT |
718 | return 0; |
719 | } | |
720 | break; | |
721 | default: | |
722 | return 0; | |
723 | } | |
724 | ||
fabbf219 | 725 | if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ |
1da177e4 | 726 | return 1; |
fabbf219 | 727 | if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ |
1da177e4 | 728 | return 1; |
28ffd79c | 729 | ERROR(tdev, "bogus config descriptor read size\n"); |
1da177e4 LT |
730 | return 0; |
731 | } | |
732 | ||
82f92672 HR |
733 | static int is_good_ext(struct usbtest_dev *tdev, u8 *buf) |
734 | { | |
735 | struct usb_ext_cap_descriptor *ext; | |
736 | u32 attr; | |
737 | ||
738 | ext = (struct usb_ext_cap_descriptor *) buf; | |
739 | ||
740 | if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) { | |
741 | ERROR(tdev, "bogus usb 2.0 extension descriptor length\n"); | |
742 | return 0; | |
743 | } | |
744 | ||
745 | attr = le32_to_cpu(ext->bmAttributes); | |
875bc23a HR |
746 | /* bits[1:15] is used and others are reserved */ |
747 | if (attr & ~0xfffe) { /* reserved == 0 */ | |
82f92672 HR |
748 | ERROR(tdev, "reserved bits set\n"); |
749 | return 0; | |
750 | } | |
751 | ||
752 | return 1; | |
753 | } | |
754 | ||
b8fef795 HR |
755 | static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf) |
756 | { | |
757 | struct usb_ss_cap_descriptor *ss; | |
758 | ||
759 | ss = (struct usb_ss_cap_descriptor *) buf; | |
760 | ||
761 | if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) { | |
762 | ERROR(tdev, "bogus superspeed device capability descriptor length\n"); | |
763 | return 0; | |
764 | } | |
765 | ||
766 | /* | |
767 | * only bit[1] of bmAttributes is used for LTM and others are | |
768 | * reserved | |
769 | */ | |
770 | if (ss->bmAttributes & ~0x02) { /* reserved == 0 */ | |
771 | ERROR(tdev, "reserved bits set in bmAttributes\n"); | |
772 | return 0; | |
773 | } | |
774 | ||
775 | /* bits[0:3] of wSpeedSupported is used and others are reserved */ | |
776 | if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */ | |
777 | ERROR(tdev, "reserved bits set in wSpeedSupported\n"); | |
778 | return 0; | |
779 | } | |
780 | ||
781 | return 1; | |
782 | } | |
783 | ||
8e29217f HR |
784 | static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf) |
785 | { | |
786 | struct usb_ss_container_id_descriptor *con_id; | |
787 | ||
788 | con_id = (struct usb_ss_container_id_descriptor *) buf; | |
789 | ||
790 | if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) { | |
791 | ERROR(tdev, "bogus container id descriptor length\n"); | |
792 | return 0; | |
793 | } | |
794 | ||
795 | if (con_id->bReserved) { /* reserved == 0 */ | |
796 | ERROR(tdev, "reserved bits set\n"); | |
797 | return 0; | |
798 | } | |
799 | ||
800 | return 1; | |
801 | } | |
802 | ||
1da177e4 LT |
803 | /* sanity test for standard requests working with usb_control_mesg() and some |
804 | * of the utility functions which use it. | |
805 | * | |
806 | * this doesn't test how endpoint halts behave or data toggles get set, since | |
807 | * we won't do I/O to bulk/interrupt endpoints here (which is how to change | |
808 | * halt or toggle). toggle testing is impractical without support from hcds. | |
809 | * | |
810 | * this avoids failing devices linux would normally work with, by not testing | |
811 | * config/altsetting operations for devices that only support their defaults. | |
812 | * such devices rarely support those needless operations. | |
813 | * | |
814 | * NOTE that since this is a sanity test, it's not examining boundary cases | |
815 | * to see if usbcore, hcd, and device all behave right. such testing would | |
816 | * involve varied read sizes and other operation sequences. | |
817 | */ | |
fabbf219 | 818 | static int ch9_postconfig(struct usbtest_dev *dev) |
1da177e4 LT |
819 | { |
820 | struct usb_interface *iface = dev->intf; | |
fabbf219 | 821 | struct usb_device *udev = interface_to_usbdev(iface); |
1da177e4 LT |
822 | int i, alt, retval; |
823 | ||
824 | /* [9.2.3] if there's more than one altsetting, we need to be able to | |
825 | * set and get each one. mostly trusts the descriptors from usbcore. | |
826 | */ | |
827 | for (i = 0; i < iface->num_altsetting; i++) { | |
828 | ||
829 | /* 9.2.3 constrains the range here */ | |
fabbf219 | 830 | alt = iface->altsetting[i].desc.bAlternateSetting; |
1da177e4 | 831 | if (alt < 0 || alt >= iface->num_altsetting) { |
28ffd79c | 832 | dev_err(&iface->dev, |
1da177e4 LT |
833 | "invalid alt [%d].bAltSetting = %d\n", |
834 | i, alt); | |
835 | } | |
836 | ||
837 | /* [real world] get/set unimplemented if there's only one */ | |
838 | if (realworld && iface->num_altsetting == 1) | |
839 | continue; | |
840 | ||
841 | /* [9.4.10] set_interface */ | |
fabbf219 | 842 | retval = set_altsetting(dev, alt); |
1da177e4 | 843 | if (retval) { |
28ffd79c | 844 | dev_err(&iface->dev, "can't set_interface = %d, %d\n", |
1da177e4 LT |
845 | alt, retval); |
846 | return retval; | |
847 | } | |
848 | ||
849 | /* [9.4.4] get_interface always works */ | |
fabbf219 | 850 | retval = get_altsetting(dev); |
1da177e4 | 851 | if (retval != alt) { |
28ffd79c | 852 | dev_err(&iface->dev, "get alt should be %d, was %d\n", |
1da177e4 LT |
853 | alt, retval); |
854 | return (retval < 0) ? retval : -EDOM; | |
855 | } | |
856 | ||
857 | } | |
858 | ||
859 | /* [real world] get_config unimplemented if there's only one */ | |
860 | if (!realworld || udev->descriptor.bNumConfigurations != 1) { | |
861 | int expected = udev->actconfig->desc.bConfigurationValue; | |
862 | ||
863 | /* [9.4.2] get_configuration always works | |
864 | * ... although some cheap devices (like one TI Hub I've got) | |
865 | * won't return config descriptors except before set_config. | |
866 | */ | |
fabbf219 | 867 | retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
1da177e4 LT |
868 | USB_REQ_GET_CONFIGURATION, |
869 | USB_DIR_IN | USB_RECIP_DEVICE, | |
870 | 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); | |
fabbf219 | 871 | if (retval != 1 || dev->buf[0] != expected) { |
28ffd79c | 872 | dev_err(&iface->dev, "get config --> %d %d (1 %d)\n", |
ff7c79e4 | 873 | retval, dev->buf[0], expected); |
1da177e4 LT |
874 | return (retval < 0) ? retval : -EDOM; |
875 | } | |
876 | } | |
877 | ||
878 | /* there's always [9.4.3] a device descriptor [9.6.1] */ | |
fabbf219 | 879 | retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0, |
f55055b4 HR |
880 | dev->buf, sizeof(udev->descriptor)); |
881 | if (retval != sizeof(udev->descriptor)) { | |
28ffd79c | 882 | dev_err(&iface->dev, "dev descriptor --> %d\n", retval); |
1da177e4 LT |
883 | return (retval < 0) ? retval : -EDOM; |
884 | } | |
885 | ||
9d3bd768 HR |
886 | /* |
887 | * there's always [9.4.3] a bos device descriptor [9.6.2] in USB | |
888 | * 3.0 spec | |
889 | */ | |
f625099f | 890 | if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) { |
82f92672 HR |
891 | struct usb_bos_descriptor *bos = NULL; |
892 | struct usb_dev_cap_header *header = NULL; | |
893 | unsigned total, num, length; | |
894 | u8 *buf; | |
895 | ||
9d3bd768 HR |
896 | retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, |
897 | sizeof(*udev->bos->desc)); | |
898 | if (retval != sizeof(*udev->bos->desc)) { | |
899 | dev_err(&iface->dev, "bos descriptor --> %d\n", retval); | |
900 | return (retval < 0) ? retval : -EDOM; | |
901 | } | |
82f92672 HR |
902 | |
903 | bos = (struct usb_bos_descriptor *)dev->buf; | |
904 | total = le16_to_cpu(bos->wTotalLength); | |
905 | num = bos->bNumDeviceCaps; | |
906 | ||
907 | if (total > TBUF_SIZE) | |
908 | total = TBUF_SIZE; | |
909 | ||
910 | /* | |
911 | * get generic device-level capability descriptors [9.6.2] | |
912 | * in USB 3.0 spec | |
913 | */ | |
914 | retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, | |
915 | total); | |
916 | if (retval != total) { | |
917 | dev_err(&iface->dev, "bos descriptor set --> %d\n", | |
918 | retval); | |
919 | return (retval < 0) ? retval : -EDOM; | |
920 | } | |
921 | ||
922 | length = sizeof(*udev->bos->desc); | |
923 | buf = dev->buf; | |
924 | for (i = 0; i < num; i++) { | |
925 | buf += length; | |
926 | if (buf + sizeof(struct usb_dev_cap_header) > | |
927 | dev->buf + total) | |
928 | break; | |
929 | ||
930 | header = (struct usb_dev_cap_header *)buf; | |
931 | length = header->bLength; | |
932 | ||
933 | if (header->bDescriptorType != | |
934 | USB_DT_DEVICE_CAPABILITY) { | |
935 | dev_warn(&udev->dev, "not device capability descriptor, skip\n"); | |
936 | continue; | |
937 | } | |
938 | ||
939 | switch (header->bDevCapabilityType) { | |
940 | case USB_CAP_TYPE_EXT: | |
941 | if (buf + USB_DT_USB_EXT_CAP_SIZE > | |
942 | dev->buf + total || | |
943 | !is_good_ext(dev, buf)) { | |
944 | dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n"); | |
945 | return -EDOM; | |
946 | } | |
947 | break; | |
b8fef795 HR |
948 | case USB_SS_CAP_TYPE: |
949 | if (buf + USB_DT_USB_SS_CAP_SIZE > | |
950 | dev->buf + total || | |
951 | !is_good_ss_cap(dev, buf)) { | |
952 | dev_err(&iface->dev, "bogus superspeed device capability descriptor\n"); | |
953 | return -EDOM; | |
954 | } | |
955 | break; | |
8e29217f HR |
956 | case CONTAINER_ID_TYPE: |
957 | if (buf + USB_DT_USB_SS_CONTN_ID_SIZE > | |
958 | dev->buf + total || | |
959 | !is_good_con_id(dev, buf)) { | |
960 | dev_err(&iface->dev, "bogus container id descriptor\n"); | |
961 | return -EDOM; | |
962 | } | |
963 | break; | |
82f92672 HR |
964 | default: |
965 | break; | |
966 | } | |
967 | } | |
9d3bd768 HR |
968 | } |
969 | ||
1da177e4 LT |
970 | /* there's always [9.4.3] at least one config descriptor [9.6.3] */ |
971 | for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { | |
fabbf219 | 972 | retval = usb_get_descriptor(udev, USB_DT_CONFIG, i, |
1da177e4 | 973 | dev->buf, TBUF_SIZE); |
28ffd79c DB |
974 | if (!is_good_config(dev, retval)) { |
975 | dev_err(&iface->dev, | |
1da177e4 LT |
976 | "config [%d] descriptor --> %d\n", |
977 | i, retval); | |
978 | return (retval < 0) ? retval : -EDOM; | |
979 | } | |
980 | ||
fabbf219 MF |
981 | /* FIXME cross-checking udev->config[i] to make sure usbcore |
982 | * parsed it right (etc) would be good testing paranoia | |
983 | */ | |
1da177e4 LT |
984 | } |
985 | ||
986 | /* and sometimes [9.2.6.6] speed dependent descriptors */ | |
987 | if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { | |
fabbf219 | 988 | struct usb_qualifier_descriptor *d = NULL; |
1da177e4 LT |
989 | |
990 | /* device qualifier [9.6.2] */ | |
fabbf219 | 991 | retval = usb_get_descriptor(udev, |
1da177e4 | 992 | USB_DT_DEVICE_QUALIFIER, 0, dev->buf, |
fabbf219 | 993 | sizeof(struct usb_qualifier_descriptor)); |
1da177e4 LT |
994 | if (retval == -EPIPE) { |
995 | if (udev->speed == USB_SPEED_HIGH) { | |
28ffd79c | 996 | dev_err(&iface->dev, |
1da177e4 LT |
997 | "hs dev qualifier --> %d\n", |
998 | retval); | |
ef5ec7f0 | 999 | return retval; |
1da177e4 LT |
1000 | } |
1001 | /* usb2.0 but not high-speed capable; fine */ | |
fabbf219 | 1002 | } else if (retval != sizeof(struct usb_qualifier_descriptor)) { |
28ffd79c | 1003 | dev_err(&iface->dev, "dev qualifier --> %d\n", retval); |
1da177e4 LT |
1004 | return (retval < 0) ? retval : -EDOM; |
1005 | } else | |
1006 | d = (struct usb_qualifier_descriptor *) dev->buf; | |
1007 | ||
1008 | /* might not have [9.6.2] any other-speed configs [9.6.4] */ | |
1009 | if (d) { | |
1010 | unsigned max = d->bNumConfigurations; | |
1011 | for (i = 0; i < max; i++) { | |
fabbf219 | 1012 | retval = usb_get_descriptor(udev, |
1da177e4 LT |
1013 | USB_DT_OTHER_SPEED_CONFIG, i, |
1014 | dev->buf, TBUF_SIZE); | |
28ffd79c DB |
1015 | if (!is_good_config(dev, retval)) { |
1016 | dev_err(&iface->dev, | |
1da177e4 LT |
1017 | "other speed config --> %d\n", |
1018 | retval); | |
1019 | return (retval < 0) ? retval : -EDOM; | |
1020 | } | |
1021 | } | |
1022 | } | |
1023 | } | |
fabbf219 | 1024 | /* FIXME fetch strings from at least the device descriptor */ |
1da177e4 LT |
1025 | |
1026 | /* [9.4.5] get_status always works */ | |
d9e1e148 | 1027 | retval = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, dev->buf); |
15b7336e | 1028 | if (retval) { |
28ffd79c | 1029 | dev_err(&iface->dev, "get dev status --> %d\n", retval); |
15b7336e | 1030 | return retval; |
1da177e4 LT |
1031 | } |
1032 | ||
fabbf219 MF |
1033 | /* FIXME configuration.bmAttributes says if we could try to set/clear |
1034 | * the device's remote wakeup feature ... if we can, test that here | |
1035 | */ | |
1da177e4 | 1036 | |
d9e1e148 | 1037 | retval = usb_get_std_status(udev, USB_RECIP_INTERFACE, |
fabbf219 | 1038 | iface->altsetting[0].desc.bInterfaceNumber, dev->buf); |
15b7336e | 1039 | if (retval) { |
28ffd79c | 1040 | dev_err(&iface->dev, "get interface status --> %d\n", retval); |
15b7336e | 1041 | return retval; |
1da177e4 | 1042 | } |
fabbf219 | 1043 | /* FIXME get status for each endpoint in the interface */ |
28ffd79c | 1044 | |
1da177e4 LT |
1045 | return 0; |
1046 | } | |
1047 | ||
1048 | /*-------------------------------------------------------------------------*/ | |
1049 | ||
1050 | /* use ch9 requests to test whether: | |
1051 | * (a) queues work for control, keeping N subtests queued and | |
1052 | * active (auto-resubmit) for M loops through the queue. | |
1053 | * (b) protocol stalls (control-only) will autorecover. | |
1054 | * it's not like bulk/intr; no halt clearing. | |
1055 | * (c) short control reads are reported and handled. | |
1056 | * (d) queues are always processed in-order | |
1057 | */ | |
1058 | ||
1059 | struct ctrl_ctx { | |
1060 | spinlock_t lock; | |
1061 | struct usbtest_dev *dev; | |
1062 | struct completion complete; | |
1063 | unsigned count; | |
1064 | unsigned pending; | |
1065 | int status; | |
1066 | struct urb **urb; | |
18fc4ebd | 1067 | struct usbtest_param_32 *param; |
1da177e4 LT |
1068 | int last; |
1069 | }; | |
1070 | ||
c952a8ba | 1071 | #define NUM_SUBCASES 16 /* how many test subcases here? */ |
1da177e4 LT |
1072 | |
1073 | struct subcase { | |
1074 | struct usb_ctrlrequest setup; | |
1075 | int number; | |
1076 | int expected; | |
1077 | }; | |
1078 | ||
fabbf219 | 1079 | static void ctrl_complete(struct urb *urb) |
1da177e4 LT |
1080 | { |
1081 | struct ctrl_ctx *ctx = urb->context; | |
1082 | struct usb_ctrlrequest *reqp; | |
1083 | struct subcase *subcase; | |
1084 | int status = urb->status; | |
1085 | ||
1086 | reqp = (struct usb_ctrlrequest *)urb->setup_packet; | |
fabbf219 | 1087 | subcase = container_of(reqp, struct subcase, setup); |
1da177e4 | 1088 | |
fabbf219 | 1089 | spin_lock(&ctx->lock); |
1da177e4 LT |
1090 | ctx->count--; |
1091 | ctx->pending--; | |
1092 | ||
1093 | /* queue must transfer and complete in fifo order, unless | |
1094 | * usb_unlink_urb() is used to unlink something not at the | |
1095 | * physical queue head (not tested). | |
1096 | */ | |
1097 | if (subcase->number > 0) { | |
1098 | if ((subcase->number - ctx->last) != 1) { | |
28ffd79c DB |
1099 | ERROR(ctx->dev, |
1100 | "subcase %d completed out of order, last %d\n", | |
1101 | subcase->number, ctx->last); | |
1da177e4 LT |
1102 | status = -EDOM; |
1103 | ctx->last = subcase->number; | |
1104 | goto error; | |
1105 | } | |
1106 | } | |
1107 | ctx->last = subcase->number; | |
1108 | ||
1109 | /* succeed or fault in only one way? */ | |
1110 | if (status == subcase->expected) | |
1111 | status = 0; | |
1112 | ||
1113 | /* async unlink for cleanup? */ | |
1114 | else if (status != -ECONNRESET) { | |
1115 | ||
1116 | /* some faults are allowed, not required */ | |
1117 | if (subcase->expected > 0 && ( | |
59d99785 GKH |
1118 | ((status == -subcase->expected /* happened */ |
1119 | || status == 0)))) /* didn't */ | |
1da177e4 LT |
1120 | status = 0; |
1121 | /* sometimes more than one fault is allowed */ | |
1122 | else if (subcase->number == 12 && status == -EPIPE) | |
1123 | status = 0; | |
1124 | else | |
28ffd79c | 1125 | ERROR(ctx->dev, "subtest %d error, status %d\n", |
1da177e4 LT |
1126 | subcase->number, status); |
1127 | } | |
1128 | ||
1129 | /* unexpected status codes mean errors; ideally, in hardware */ | |
1130 | if (status) { | |
1131 | error: | |
1132 | if (ctx->status == 0) { | |
1133 | int i; | |
1134 | ||
1135 | ctx->status = status; | |
28ffd79c DB |
1136 | ERROR(ctx->dev, "control queue %02x.%02x, err %d, " |
1137 | "%d left, subcase %d, len %d/%d\n", | |
1da177e4 | 1138 | reqp->bRequestType, reqp->bRequest, |
28ffd79c DB |
1139 | status, ctx->count, subcase->number, |
1140 | urb->actual_length, | |
1141 | urb->transfer_buffer_length); | |
1da177e4 LT |
1142 | |
1143 | /* FIXME this "unlink everything" exit route should | |
1144 | * be a separate test case. | |
1145 | */ | |
1146 | ||
1147 | /* unlink whatever's still pending */ | |
1148 | for (i = 1; i < ctx->param->sglen; i++) { | |
fabbf219 MF |
1149 | struct urb *u = ctx->urb[ |
1150 | (i + subcase->number) | |
1151 | % ctx->param->sglen]; | |
1da177e4 LT |
1152 | |
1153 | if (u == urb || !u->dev) | |
1154 | continue; | |
caa2a122 | 1155 | spin_unlock(&ctx->lock); |
fabbf219 | 1156 | status = usb_unlink_urb(u); |
caa2a122 | 1157 | spin_lock(&ctx->lock); |
1da177e4 LT |
1158 | switch (status) { |
1159 | case -EINPROGRESS: | |
1160 | case -EBUSY: | |
1161 | case -EIDRM: | |
1162 | continue; | |
1163 | default: | |
28ffd79c DB |
1164 | ERROR(ctx->dev, "urb unlink --> %d\n", |
1165 | status); | |
1da177e4 LT |
1166 | } |
1167 | } | |
1168 | status = ctx->status; | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | /* resubmit if we need to, else mark this as done */ | |
1173 | if ((status == 0) && (ctx->pending < ctx->count)) { | |
fabbf219 MF |
1174 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1175 | if (status != 0) { | |
28ffd79c DB |
1176 | ERROR(ctx->dev, |
1177 | "can't resubmit ctrl %02x.%02x, err %d\n", | |
1da177e4 LT |
1178 | reqp->bRequestType, reqp->bRequest, status); |
1179 | urb->dev = NULL; | |
1180 | } else | |
1181 | ctx->pending++; | |
1182 | } else | |
1183 | urb->dev = NULL; | |
28ffd79c | 1184 | |
1da177e4 LT |
1185 | /* signal completion when nothing's queued */ |
1186 | if (ctx->pending == 0) | |
fabbf219 MF |
1187 | complete(&ctx->complete); |
1188 | spin_unlock(&ctx->lock); | |
1da177e4 LT |
1189 | } |
1190 | ||
1191 | static int | |
18fc4ebd | 1192 | test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param) |
1da177e4 | 1193 | { |
fabbf219 | 1194 | struct usb_device *udev = testdev_to_usbdev(dev); |
1da177e4 LT |
1195 | struct urb **urb; |
1196 | struct ctrl_ctx context; | |
1197 | int i; | |
1198 | ||
e65cdfae XW |
1199 | if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen) |
1200 | return -EOPNOTSUPP; | |
1201 | ||
fabbf219 | 1202 | spin_lock_init(&context.lock); |
1da177e4 | 1203 | context.dev = dev; |
fabbf219 | 1204 | init_completion(&context.complete); |
1da177e4 LT |
1205 | context.count = param->sglen * param->iterations; |
1206 | context.pending = 0; | |
1207 | context.status = -ENOMEM; | |
1208 | context.param = param; | |
1209 | context.last = -1; | |
1210 | ||
1211 | /* allocate and init the urbs we'll queue. | |
1212 | * as with bulk/intr sglists, sglen is the queue depth; it also | |
1213 | * controls which subtests run (more tests than sglen) or rerun. | |
1214 | */ | |
e94b1766 | 1215 | urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); |
1da177e4 LT |
1216 | if (!urb) |
1217 | return -ENOMEM; | |
1da177e4 | 1218 | for (i = 0; i < param->sglen; i++) { |
fabbf219 | 1219 | int pipe = usb_rcvctrlpipe(udev, 0); |
1da177e4 LT |
1220 | unsigned len; |
1221 | struct urb *u; | |
1222 | struct usb_ctrlrequest req; | |
1223 | struct subcase *reqp; | |
6def7553 MS |
1224 | |
1225 | /* sign of this variable means: | |
1226 | * -: tested code must return this (negative) error code | |
1227 | * +: tested code may return this (negative too) error code | |
1228 | */ | |
1da177e4 LT |
1229 | int expected = 0; |
1230 | ||
1231 | /* requests here are mostly expected to succeed on any | |
1232 | * device, but some are chosen to trigger protocol stalls | |
1233 | * or short reads. | |
1234 | */ | |
f55055b4 | 1235 | memset(&req, 0, sizeof(req)); |
1da177e4 LT |
1236 | req.bRequest = USB_REQ_GET_DESCRIPTOR; |
1237 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; | |
1238 | ||
1239 | switch (i % NUM_SUBCASES) { | |
fabbf219 MF |
1240 | case 0: /* get device descriptor */ |
1241 | req.wValue = cpu_to_le16(USB_DT_DEVICE << 8); | |
1242 | len = sizeof(struct usb_device_descriptor); | |
1da177e4 | 1243 | break; |
fabbf219 MF |
1244 | case 1: /* get first config descriptor (only) */ |
1245 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1246 | len = sizeof(struct usb_config_descriptor); | |
1da177e4 | 1247 | break; |
fabbf219 | 1248 | case 2: /* get altsetting (OFTEN STALLS) */ |
1da177e4 LT |
1249 | req.bRequest = USB_REQ_GET_INTERFACE; |
1250 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; | |
fabbf219 | 1251 | /* index = 0 means first interface */ |
1da177e4 LT |
1252 | len = 1; |
1253 | expected = EPIPE; | |
1254 | break; | |
fabbf219 | 1255 | case 3: /* get interface status */ |
1da177e4 LT |
1256 | req.bRequest = USB_REQ_GET_STATUS; |
1257 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; | |
fabbf219 | 1258 | /* interface 0 */ |
1da177e4 LT |
1259 | len = 2; |
1260 | break; | |
fabbf219 | 1261 | case 4: /* get device status */ |
1da177e4 LT |
1262 | req.bRequest = USB_REQ_GET_STATUS; |
1263 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; | |
1264 | len = 2; | |
1265 | break; | |
fabbf219 | 1266 | case 5: /* get device qualifier (MAY STALL) */ |
1da177e4 | 1267 | req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); |
fabbf219 | 1268 | len = sizeof(struct usb_qualifier_descriptor); |
1da177e4 LT |
1269 | if (udev->speed != USB_SPEED_HIGH) |
1270 | expected = EPIPE; | |
1271 | break; | |
fabbf219 MF |
1272 | case 6: /* get first config descriptor, plus interface */ |
1273 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1274 | len = sizeof(struct usb_config_descriptor); | |
1275 | len += sizeof(struct usb_interface_descriptor); | |
1da177e4 | 1276 | break; |
fabbf219 | 1277 | case 7: /* get interface descriptor (ALWAYS STALLS) */ |
1da177e4 | 1278 | req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); |
fabbf219 MF |
1279 | /* interface == 0 */ |
1280 | len = sizeof(struct usb_interface_descriptor); | |
28ffd79c | 1281 | expected = -EPIPE; |
1da177e4 | 1282 | break; |
fabbf219 MF |
1283 | /* NOTE: two consecutive stalls in the queue here. |
1284 | * that tests fault recovery a bit more aggressively. */ | |
1285 | case 8: /* clear endpoint halt (MAY STALL) */ | |
1da177e4 LT |
1286 | req.bRequest = USB_REQ_CLEAR_FEATURE; |
1287 | req.bRequestType = USB_RECIP_ENDPOINT; | |
fabbf219 MF |
1288 | /* wValue 0 == ep halt */ |
1289 | /* wIndex 0 == ep0 (shouldn't halt!) */ | |
1da177e4 | 1290 | len = 0; |
fabbf219 | 1291 | pipe = usb_sndctrlpipe(udev, 0); |
1da177e4 LT |
1292 | expected = EPIPE; |
1293 | break; | |
fabbf219 | 1294 | case 9: /* get endpoint status */ |
1da177e4 LT |
1295 | req.bRequest = USB_REQ_GET_STATUS; |
1296 | req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; | |
fabbf219 | 1297 | /* endpoint 0 */ |
1da177e4 LT |
1298 | len = 2; |
1299 | break; | |
fabbf219 MF |
1300 | case 10: /* trigger short read (EREMOTEIO) */ |
1301 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1da177e4 LT |
1302 | len = 1024; |
1303 | expected = -EREMOTEIO; | |
1304 | break; | |
fabbf219 MF |
1305 | /* NOTE: two consecutive _different_ faults in the queue. */ |
1306 | case 11: /* get endpoint descriptor (ALWAYS STALLS) */ | |
1307 | req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8); | |
1308 | /* endpoint == 0 */ | |
1309 | len = sizeof(struct usb_interface_descriptor); | |
1da177e4 LT |
1310 | expected = EPIPE; |
1311 | break; | |
fabbf219 MF |
1312 | /* NOTE: sometimes even a third fault in the queue! */ |
1313 | case 12: /* get string 0 descriptor (MAY STALL) */ | |
1314 | req.wValue = cpu_to_le16(USB_DT_STRING << 8); | |
1315 | /* string == 0, for language IDs */ | |
1316 | len = sizeof(struct usb_interface_descriptor); | |
1317 | /* may succeed when > 4 languages */ | |
1318 | expected = EREMOTEIO; /* or EPIPE, if no strings */ | |
1da177e4 | 1319 | break; |
fabbf219 MF |
1320 | case 13: /* short read, resembling case 10 */ |
1321 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1322 | /* last data packet "should" be DATA1, not DATA0 */ | |
6a23ccd2 PZ |
1323 | if (udev->speed == USB_SPEED_SUPER) |
1324 | len = 1024 - 512; | |
1325 | else | |
1326 | len = 1024 - udev->descriptor.bMaxPacketSize0; | |
1da177e4 LT |
1327 | expected = -EREMOTEIO; |
1328 | break; | |
fabbf219 MF |
1329 | case 14: /* short read; try to fill the last packet */ |
1330 | req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0); | |
28ffd79c | 1331 | /* device descriptor size == 18 bytes */ |
1da177e4 | 1332 | len = udev->descriptor.bMaxPacketSize0; |
67e7d64b SAS |
1333 | if (udev->speed == USB_SPEED_SUPER) |
1334 | len = 512; | |
1da177e4 | 1335 | switch (len) { |
fabbf219 MF |
1336 | case 8: |
1337 | len = 24; | |
1338 | break; | |
1339 | case 16: | |
1340 | len = 32; | |
1341 | break; | |
1da177e4 LT |
1342 | } |
1343 | expected = -EREMOTEIO; | |
1344 | break; | |
c952a8ba HR |
1345 | case 15: |
1346 | req.wValue = cpu_to_le16(USB_DT_BOS << 8); | |
1347 | if (udev->bos) | |
1348 | len = le16_to_cpu(udev->bos->desc->wTotalLength); | |
1349 | else | |
1350 | len = sizeof(struct usb_bos_descriptor); | |
8cf43285 | 1351 | if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201) |
c952a8ba HR |
1352 | expected = -EPIPE; |
1353 | break; | |
1da177e4 | 1354 | default: |
28ffd79c | 1355 | ERROR(dev, "bogus number of ctrl queue testcases!\n"); |
1da177e4 LT |
1356 | context.status = -EINVAL; |
1357 | goto cleanup; | |
1358 | } | |
fabbf219 | 1359 | req.wLength = cpu_to_le16(len); |
457a0955 | 1360 | urb[i] = u = simple_alloc_urb(udev, pipe, len, 0); |
1da177e4 LT |
1361 | if (!u) |
1362 | goto cleanup; | |
1363 | ||
f55055b4 | 1364 | reqp = kmalloc(sizeof(*reqp), GFP_KERNEL); |
1da177e4 LT |
1365 | if (!reqp) |
1366 | goto cleanup; | |
1367 | reqp->setup = req; | |
1368 | reqp->number = i % NUM_SUBCASES; | |
1369 | reqp->expected = expected; | |
1370 | u->setup_packet = (char *) &reqp->setup; | |
1371 | ||
1372 | u->context = &context; | |
1373 | u->complete = ctrl_complete; | |
1da177e4 LT |
1374 | } |
1375 | ||
1376 | /* queue the urbs */ | |
1377 | context.urb = urb; | |
fabbf219 | 1378 | spin_lock_irq(&context.lock); |
1da177e4 | 1379 | for (i = 0; i < param->sglen; i++) { |
fabbf219 | 1380 | context.status = usb_submit_urb(urb[i], GFP_ATOMIC); |
1da177e4 | 1381 | if (context.status != 0) { |
28ffd79c | 1382 | ERROR(dev, "can't submit urb[%d], status %d\n", |
1da177e4 LT |
1383 | i, context.status); |
1384 | context.count = context.pending; | |
1385 | break; | |
1386 | } | |
1387 | context.pending++; | |
1388 | } | |
fabbf219 | 1389 | spin_unlock_irq(&context.lock); |
1da177e4 LT |
1390 | |
1391 | /* FIXME set timer and time out; provide a disconnect hook */ | |
1392 | ||
1393 | /* wait for the last one to complete */ | |
1394 | if (context.pending > 0) | |
fabbf219 | 1395 | wait_for_completion(&context.complete); |
1da177e4 LT |
1396 | |
1397 | cleanup: | |
1398 | for (i = 0; i < param->sglen; i++) { | |
fabbf219 | 1399 | if (!urb[i]) |
1da177e4 | 1400 | continue; |
fabbf219 | 1401 | urb[i]->dev = udev; |
0ede76fc | 1402 | kfree(urb[i]->setup_packet); |
fabbf219 | 1403 | simple_free_urb(urb[i]); |
1da177e4 | 1404 | } |
fabbf219 | 1405 | kfree(urb); |
1da177e4 LT |
1406 | return context.status; |
1407 | } | |
1408 | #undef NUM_SUBCASES | |
1409 | ||
1410 | ||
1411 | /*-------------------------------------------------------------------------*/ | |
1412 | ||
fabbf219 | 1413 | static void unlink1_callback(struct urb *urb) |
1da177e4 LT |
1414 | { |
1415 | int status = urb->status; | |
1416 | ||
fabbf219 | 1417 | /* we "know" -EPIPE (stall) never happens */ |
1da177e4 | 1418 | if (!status) |
fabbf219 | 1419 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1420 | if (status) { |
1421 | urb->status = status; | |
cdc97792 | 1422 | complete(urb->context); |
1da177e4 LT |
1423 | } |
1424 | } | |
1425 | ||
fabbf219 | 1426 | static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async) |
1da177e4 LT |
1427 | { |
1428 | struct urb *urb; | |
1429 | struct completion completion; | |
1430 | int retval = 0; | |
1431 | ||
fabbf219 | 1432 | init_completion(&completion); |
457a0955 | 1433 | urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0); |
1da177e4 LT |
1434 | if (!urb) |
1435 | return -ENOMEM; | |
1da177e4 LT |
1436 | urb->context = &completion; |
1437 | urb->complete = unlink1_callback; | |
1438 | ||
e4d58f5d HR |
1439 | if (usb_pipeout(urb->pipe)) { |
1440 | simple_fill_buf(urb); | |
1441 | urb->transfer_flags |= URB_ZERO_PACKET; | |
1442 | } | |
1443 | ||
1da177e4 LT |
1444 | /* keep the endpoint busy. there are lots of hc/hcd-internal |
1445 | * states, and testing should get to all of them over time. | |
1446 | * | |
1447 | * FIXME want additional tests for when endpoint is STALLing | |
1448 | * due to errors, or is just NAKing requests. | |
1449 | */ | |
fabbf219 MF |
1450 | retval = usb_submit_urb(urb, GFP_KERNEL); |
1451 | if (retval != 0) { | |
28ffd79c | 1452 | dev_err(&dev->intf->dev, "submit fail %d\n", retval); |
1da177e4 LT |
1453 | return retval; |
1454 | } | |
1455 | ||
1456 | /* unlinking that should always work. variable delay tests more | |
1457 | * hcd states and code paths, even with little other system load. | |
1458 | */ | |
fabbf219 | 1459 | msleep(jiffies % (2 * INTERRUPT_RATE)); |
1da177e4 | 1460 | if (async) { |
3b6c023f MF |
1461 | while (!completion_done(&completion)) { |
1462 | retval = usb_unlink_urb(urb); | |
1463 | ||
a7683eb3 HR |
1464 | if (retval == 0 && usb_pipein(urb->pipe)) |
1465 | retval = simple_check_buf(dev, urb); | |
1466 | ||
3b6c023f MF |
1467 | switch (retval) { |
1468 | case -EBUSY: | |
1469 | case -EIDRM: | |
1470 | /* we can't unlink urbs while they're completing | |
1471 | * or if they've completed, and we haven't | |
1472 | * resubmitted. "normal" drivers would prevent | |
1473 | * resubmission, but since we're testing unlink | |
1474 | * paths, we can't. | |
1475 | */ | |
1476 | ERROR(dev, "unlink retry\n"); | |
1477 | continue; | |
1478 | case 0: | |
1479 | case -EINPROGRESS: | |
1480 | break; | |
1481 | ||
1482 | default: | |
1483 | dev_err(&dev->intf->dev, | |
1484 | "unlink fail %d\n", retval); | |
1485 | return retval; | |
1486 | } | |
1487 | ||
1488 | break; | |
1da177e4 LT |
1489 | } |
1490 | } else | |
fabbf219 | 1491 | usb_kill_urb(urb); |
1da177e4 | 1492 | |
fabbf219 | 1493 | wait_for_completion(&completion); |
1da177e4 | 1494 | retval = urb->status; |
fabbf219 | 1495 | simple_free_urb(urb); |
1da177e4 LT |
1496 | |
1497 | if (async) | |
1498 | return (retval == -ECONNRESET) ? 0 : retval - 1000; | |
1499 | else | |
1500 | return (retval == -ENOENT || retval == -EPERM) ? | |
1501 | 0 : retval - 2000; | |
1502 | } | |
1503 | ||
fabbf219 | 1504 | static int unlink_simple(struct usbtest_dev *dev, int pipe, int len) |
1da177e4 LT |
1505 | { |
1506 | int retval = 0; | |
1507 | ||
1508 | /* test sync and async paths */ | |
fabbf219 | 1509 | retval = unlink1(dev, pipe, len, 1); |
1da177e4 | 1510 | if (!retval) |
fabbf219 | 1511 | retval = unlink1(dev, pipe, len, 0); |
1da177e4 LT |
1512 | return retval; |
1513 | } | |
1514 | ||
1515 | /*-------------------------------------------------------------------------*/ | |
1516 | ||
869410f8 AS |
1517 | struct queued_ctx { |
1518 | struct completion complete; | |
1519 | atomic_t pending; | |
1520 | unsigned num; | |
1521 | int status; | |
1522 | struct urb **urbs; | |
1523 | }; | |
1524 | ||
1525 | static void unlink_queued_callback(struct urb *urb) | |
1526 | { | |
1527 | int status = urb->status; | |
1528 | struct queued_ctx *ctx = urb->context; | |
1529 | ||
1530 | if (ctx->status) | |
1531 | goto done; | |
1532 | if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) { | |
1533 | if (status == -ECONNRESET) | |
1534 | goto done; | |
1535 | /* What error should we report if the URB completed normally? */ | |
1536 | } | |
1537 | if (status != 0) | |
1538 | ctx->status = status; | |
1539 | ||
1540 | done: | |
1541 | if (atomic_dec_and_test(&ctx->pending)) | |
1542 | complete(&ctx->complete); | |
1543 | } | |
1544 | ||
1545 | static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num, | |
1546 | unsigned size) | |
1547 | { | |
1548 | struct queued_ctx ctx; | |
1549 | struct usb_device *udev = testdev_to_usbdev(dev); | |
1550 | void *buf; | |
1551 | dma_addr_t buf_dma; | |
1552 | int i; | |
1553 | int retval = -ENOMEM; | |
1554 | ||
1555 | init_completion(&ctx.complete); | |
1556 | atomic_set(&ctx.pending, 1); /* One more than the actual value */ | |
1557 | ctx.num = num; | |
1558 | ctx.status = 0; | |
1559 | ||
1560 | buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma); | |
1561 | if (!buf) | |
1562 | return retval; | |
1563 | memset(buf, 0, size); | |
1564 | ||
1565 | /* Allocate and init the urbs we'll queue */ | |
1566 | ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL); | |
1567 | if (!ctx.urbs) | |
1568 | goto free_buf; | |
1569 | for (i = 0; i < num; i++) { | |
1570 | ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
1571 | if (!ctx.urbs[i]) | |
1572 | goto free_urbs; | |
1573 | usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size, | |
1574 | unlink_queued_callback, &ctx); | |
1575 | ctx.urbs[i]->transfer_dma = buf_dma; | |
1576 | ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
e4d58f5d HR |
1577 | |
1578 | if (usb_pipeout(ctx.urbs[i]->pipe)) { | |
1579 | simple_fill_buf(ctx.urbs[i]); | |
1580 | ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET; | |
1581 | } | |
869410f8 AS |
1582 | } |
1583 | ||
1584 | /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */ | |
1585 | for (i = 0; i < num; i++) { | |
1586 | atomic_inc(&ctx.pending); | |
1587 | retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL); | |
1588 | if (retval != 0) { | |
1589 | dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n", | |
1590 | i, retval); | |
1591 | atomic_dec(&ctx.pending); | |
1592 | ctx.status = retval; | |
1593 | break; | |
1594 | } | |
1595 | } | |
1596 | if (i == num) { | |
1597 | usb_unlink_urb(ctx.urbs[num - 4]); | |
1598 | usb_unlink_urb(ctx.urbs[num - 2]); | |
1599 | } else { | |
1600 | while (--i >= 0) | |
1601 | usb_unlink_urb(ctx.urbs[i]); | |
1602 | } | |
1603 | ||
1604 | if (atomic_dec_and_test(&ctx.pending)) /* The extra count */ | |
1605 | complete(&ctx.complete); | |
1606 | wait_for_completion(&ctx.complete); | |
1607 | retval = ctx.status; | |
1608 | ||
1609 | free_urbs: | |
1610 | for (i = 0; i < num; i++) | |
1611 | usb_free_urb(ctx.urbs[i]); | |
1612 | kfree(ctx.urbs); | |
1613 | free_buf: | |
1614 | usb_free_coherent(udev, size, buf, buf_dma); | |
1615 | return retval; | |
1616 | } | |
1617 | ||
1618 | /*-------------------------------------------------------------------------*/ | |
1619 | ||
28ffd79c | 1620 | static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) |
1da177e4 LT |
1621 | { |
1622 | int retval; | |
1623 | u16 status; | |
1624 | ||
1625 | /* shouldn't look or act halted */ | |
d9e1e148 | 1626 | retval = usb_get_std_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status); |
1da177e4 | 1627 | if (retval < 0) { |
28ffd79c DB |
1628 | ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n", |
1629 | ep, retval); | |
1da177e4 LT |
1630 | return retval; |
1631 | } | |
1632 | if (status != 0) { | |
28ffd79c | 1633 | ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status); |
1da177e4 LT |
1634 | return -EINVAL; |
1635 | } | |
28ffd79c | 1636 | retval = simple_io(tdev, urb, 1, 0, 0, __func__); |
1da177e4 LT |
1637 | if (retval != 0) |
1638 | return -EINVAL; | |
1639 | return 0; | |
1640 | } | |
1641 | ||
28ffd79c | 1642 | static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) |
1da177e4 LT |
1643 | { |
1644 | int retval; | |
1645 | u16 status; | |
1646 | ||
1647 | /* should look and act halted */ | |
d9e1e148 | 1648 | retval = usb_get_std_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status); |
1da177e4 | 1649 | if (retval < 0) { |
28ffd79c DB |
1650 | ERROR(tdev, "ep %02x couldn't get halt status, %d\n", |
1651 | ep, retval); | |
1da177e4 LT |
1652 | return retval; |
1653 | } | |
1654 | if (status != 1) { | |
28ffd79c | 1655 | ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); |
1da177e4 LT |
1656 | return -EINVAL; |
1657 | } | |
28ffd79c | 1658 | retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__); |
1da177e4 LT |
1659 | if (retval != -EPIPE) |
1660 | return -EINVAL; | |
28ffd79c | 1661 | retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted"); |
1da177e4 LT |
1662 | if (retval != -EPIPE) |
1663 | return -EINVAL; | |
1664 | return 0; | |
1665 | } | |
1666 | ||
28ffd79c | 1667 | static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) |
1da177e4 LT |
1668 | { |
1669 | int retval; | |
1670 | ||
1671 | /* shouldn't look or act halted now */ | |
28ffd79c | 1672 | retval = verify_not_halted(tdev, ep, urb); |
1da177e4 LT |
1673 | if (retval < 0) |
1674 | return retval; | |
1675 | ||
1676 | /* set halt (protocol test only), verify it worked */ | |
fabbf219 | 1677 | retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0), |
1da177e4 LT |
1678 | USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, |
1679 | USB_ENDPOINT_HALT, ep, | |
1680 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
1681 | if (retval < 0) { | |
28ffd79c | 1682 | ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval); |
1da177e4 LT |
1683 | return retval; |
1684 | } | |
28ffd79c | 1685 | retval = verify_halted(tdev, ep, urb); |
824d752b RQ |
1686 | if (retval < 0) { |
1687 | int ret; | |
1688 | ||
1689 | /* clear halt anyways, else further tests will fail */ | |
1690 | ret = usb_clear_halt(urb->dev, urb->pipe); | |
1691 | if (ret) | |
1692 | ERROR(tdev, "ep %02x couldn't clear halt, %d\n", | |
1693 | ep, ret); | |
1694 | ||
1da177e4 | 1695 | return retval; |
824d752b | 1696 | } |
1da177e4 LT |
1697 | |
1698 | /* clear halt (tests API + protocol), verify it worked */ | |
fabbf219 | 1699 | retval = usb_clear_halt(urb->dev, urb->pipe); |
1da177e4 | 1700 | if (retval < 0) { |
28ffd79c | 1701 | ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval); |
1da177e4 LT |
1702 | return retval; |
1703 | } | |
28ffd79c | 1704 | retval = verify_not_halted(tdev, ep, urb); |
1da177e4 LT |
1705 | if (retval < 0) |
1706 | return retval; | |
1707 | ||
1708 | /* NOTE: could also verify SET_INTERFACE clear halts ... */ | |
1709 | ||
1710 | return 0; | |
1711 | } | |
1712 | ||
fabbf219 | 1713 | static int halt_simple(struct usbtest_dev *dev) |
1da177e4 | 1714 | { |
6a23ccd2 PZ |
1715 | int ep; |
1716 | int retval = 0; | |
1717 | struct urb *urb; | |
1718 | struct usb_device *udev = testdev_to_usbdev(dev); | |
1da177e4 | 1719 | |
6a23ccd2 | 1720 | if (udev->speed == USB_SPEED_SUPER) |
457a0955 | 1721 | urb = simple_alloc_urb(udev, 0, 1024, 0); |
6a23ccd2 | 1722 | else |
457a0955 | 1723 | urb = simple_alloc_urb(udev, 0, 512, 0); |
1da177e4 LT |
1724 | if (urb == NULL) |
1725 | return -ENOMEM; | |
1726 | ||
1727 | if (dev->in_pipe) { | |
fabbf219 | 1728 | ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN; |
1da177e4 | 1729 | urb->pipe = dev->in_pipe; |
28ffd79c | 1730 | retval = test_halt(dev, ep, urb); |
1da177e4 LT |
1731 | if (retval < 0) |
1732 | goto done; | |
1733 | } | |
1734 | ||
1735 | if (dev->out_pipe) { | |
fabbf219 | 1736 | ep = usb_pipeendpoint(dev->out_pipe); |
1da177e4 | 1737 | urb->pipe = dev->out_pipe; |
28ffd79c | 1738 | retval = test_halt(dev, ep, urb); |
1da177e4 LT |
1739 | } |
1740 | done: | |
fabbf219 | 1741 | simple_free_urb(urb); |
1da177e4 LT |
1742 | return retval; |
1743 | } | |
1744 | ||
1745 | /*-------------------------------------------------------------------------*/ | |
1746 | ||
1747 | /* Control OUT tests use the vendor control requests from Intel's | |
1748 | * USB 2.0 compliance test device: write a buffer, read it back. | |
1749 | * | |
1750 | * Intel's spec only _requires_ that it work for one packet, which | |
1751 | * is pretty weak. Some HCDs place limits here; most devices will | |
1752 | * need to be able to handle more than one OUT data packet. We'll | |
1753 | * try whatever we're told to try. | |
1754 | */ | |
fabbf219 | 1755 | static int ctrl_out(struct usbtest_dev *dev, |
084fb206 | 1756 | unsigned count, unsigned length, unsigned vary, unsigned offset) |
1da177e4 | 1757 | { |
f54fa84d OF |
1758 | unsigned i, j, len; |
1759 | int retval; | |
1da177e4 LT |
1760 | u8 *buf; |
1761 | char *what = "?"; | |
1762 | struct usb_device *udev; | |
f54fa84d | 1763 | |
ff7c79e4 | 1764 | if (length < 1 || length > 0xffff || vary >= length) |
1da177e4 LT |
1765 | return -EINVAL; |
1766 | ||
084fb206 | 1767 | buf = kmalloc(length + offset, GFP_KERNEL); |
1da177e4 LT |
1768 | if (!buf) |
1769 | return -ENOMEM; | |
1770 | ||
084fb206 | 1771 | buf += offset; |
fabbf219 | 1772 | udev = testdev_to_usbdev(dev); |
1da177e4 LT |
1773 | len = length; |
1774 | retval = 0; | |
1775 | ||
1776 | /* NOTE: hardware might well act differently if we pushed it | |
1777 | * with lots back-to-back queued requests. | |
1778 | */ | |
1779 | for (i = 0; i < count; i++) { | |
1780 | /* write patterned data */ | |
1781 | for (j = 0; j < len; j++) | |
169900f9 | 1782 | buf[j] = (u8)(i + j); |
fabbf219 | 1783 | retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
1da177e4 LT |
1784 | 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, |
1785 | 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); | |
1786 | if (retval != len) { | |
1787 | what = "write"; | |
ff7c79e4 | 1788 | if (retval >= 0) { |
28ffd79c | 1789 | ERROR(dev, "ctrl_out, wlen %d (expected %d)\n", |
ff7c79e4 DB |
1790 | retval, len); |
1791 | retval = -EBADMSG; | |
1792 | } | |
1da177e4 LT |
1793 | break; |
1794 | } | |
1795 | ||
1796 | /* read it back -- assuming nothing intervened!! */ | |
fabbf219 | 1797 | retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
1da177e4 LT |
1798 | 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, |
1799 | 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); | |
1800 | if (retval != len) { | |
1801 | what = "read"; | |
ff7c79e4 | 1802 | if (retval >= 0) { |
28ffd79c | 1803 | ERROR(dev, "ctrl_out, rlen %d (expected %d)\n", |
ff7c79e4 DB |
1804 | retval, len); |
1805 | retval = -EBADMSG; | |
1806 | } | |
1da177e4 LT |
1807 | break; |
1808 | } | |
1809 | ||
1810 | /* fail if we can't verify */ | |
1811 | for (j = 0; j < len; j++) { | |
169900f9 | 1812 | if (buf[j] != (u8)(i + j)) { |
28ffd79c | 1813 | ERROR(dev, "ctrl_out, byte %d is %d not %d\n", |
169900f9 | 1814 | j, buf[j], (u8)(i + j)); |
1da177e4 LT |
1815 | retval = -EBADMSG; |
1816 | break; | |
1817 | } | |
1818 | } | |
1819 | if (retval < 0) { | |
1820 | what = "verify"; | |
1821 | break; | |
1822 | } | |
1823 | ||
1824 | len += vary; | |
ff7c79e4 DB |
1825 | |
1826 | /* [real world] the "zero bytes IN" case isn't really used. | |
dc0d5c1e | 1827 | * hardware can easily trip up in this weird case, since its |
ff7c79e4 DB |
1828 | * status stage is IN, not OUT like other ep0in transfers. |
1829 | */ | |
1da177e4 | 1830 | if (len > length) |
ff7c79e4 | 1831 | len = realworld ? 1 : 0; |
1da177e4 LT |
1832 | } |
1833 | ||
1834 | if (retval < 0) | |
fabbf219 | 1835 | ERROR(dev, "ctrl_out %s failed, code %d, count %d\n", |
1da177e4 LT |
1836 | what, retval, i); |
1837 | ||
084fb206 | 1838 | kfree(buf - offset); |
1da177e4 LT |
1839 | return retval; |
1840 | } | |
1841 | ||
1842 | /*-------------------------------------------------------------------------*/ | |
1843 | ||
145f48c5 | 1844 | /* ISO/BULK tests ... mimics common usage |
1da177e4 LT |
1845 | * - buffer length is split into N packets (mostly maxpacket sized) |
1846 | * - multi-buffers according to sglen | |
1847 | */ | |
1848 | ||
145f48c5 | 1849 | struct transfer_context { |
1da177e4 LT |
1850 | unsigned count; |
1851 | unsigned pending; | |
1852 | spinlock_t lock; | |
1853 | struct completion done; | |
9da2150f | 1854 | int submit_error; |
1da177e4 | 1855 | unsigned long errors; |
9da2150f | 1856 | unsigned long packet_count; |
1da177e4 | 1857 | struct usbtest_dev *dev; |
145f48c5 | 1858 | bool is_iso; |
1da177e4 LT |
1859 | }; |
1860 | ||
145f48c5 | 1861 | static void complicated_callback(struct urb *urb) |
1da177e4 | 1862 | { |
145f48c5 | 1863 | struct transfer_context *ctx = urb->context; |
1da177e4 LT |
1864 | |
1865 | spin_lock(&ctx->lock); | |
1866 | ctx->count--; | |
1867 | ||
9da2150f | 1868 | ctx->packet_count += urb->number_of_packets; |
1da177e4 LT |
1869 | if (urb->error_count > 0) |
1870 | ctx->errors += urb->error_count; | |
9da2150f | 1871 | else if (urb->status != 0) |
145f48c5 | 1872 | ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1); |
40aed524 MF |
1873 | else if (urb->actual_length != urb->transfer_buffer_length) |
1874 | ctx->errors++; | |
084fb206 MF |
1875 | else if (check_guard_bytes(ctx->dev, urb) != 0) |
1876 | ctx->errors++; | |
1da177e4 | 1877 | |
9da2150f AS |
1878 | if (urb->status == 0 && ctx->count > (ctx->pending - 1) |
1879 | && !ctx->submit_error) { | |
fabbf219 | 1880 | int status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1881 | switch (status) { |
1882 | case 0: | |
1883 | goto done; | |
1884 | default: | |
28ffd79c | 1885 | dev_err(&ctx->dev->intf->dev, |
c7c78067 | 1886 | "resubmit err %d\n", |
1da177e4 LT |
1887 | status); |
1888 | /* FALLTHROUGH */ | |
1889 | case -ENODEV: /* disconnected */ | |
9da2150f AS |
1890 | case -ESHUTDOWN: /* endpoint disabled */ |
1891 | ctx->submit_error = 1; | |
1da177e4 LT |
1892 | break; |
1893 | } | |
1894 | } | |
1da177e4 LT |
1895 | |
1896 | ctx->pending--; | |
1897 | if (ctx->pending == 0) { | |
1898 | if (ctx->errors) | |
28ffd79c | 1899 | dev_err(&ctx->dev->intf->dev, |
c7c78067 | 1900 | "during the test, %lu errors out of %lu\n", |
9da2150f | 1901 | ctx->errors, ctx->packet_count); |
fabbf219 | 1902 | complete(&ctx->done); |
1da177e4 LT |
1903 | } |
1904 | done: | |
1905 | spin_unlock(&ctx->lock); | |
1906 | } | |
1907 | ||
fabbf219 | 1908 | static struct urb *iso_alloc_urb( |
1da177e4 LT |
1909 | struct usb_device *udev, |
1910 | int pipe, | |
1911 | struct usb_endpoint_descriptor *desc, | |
084fb206 MF |
1912 | long bytes, |
1913 | unsigned offset | |
1da177e4 LT |
1914 | ) |
1915 | { | |
1916 | struct urb *urb; | |
1917 | unsigned i, maxp, packets; | |
1918 | ||
1919 | if (bytes < 0 || !desc) | |
1920 | return NULL; | |
9f8e32df | 1921 | maxp = usb_endpoint_maxp(desc); |
131e19b9 | 1922 | maxp *= usb_endpoint_maxp_mult(desc); |
dfa5ec79 | 1923 | packets = DIV_ROUND_UP(bytes, maxp); |
1da177e4 | 1924 | |
fabbf219 | 1925 | urb = usb_alloc_urb(packets, GFP_KERNEL); |
1da177e4 LT |
1926 | if (!urb) |
1927 | return urb; | |
1928 | urb->dev = udev; | |
1929 | urb->pipe = pipe; | |
1930 | ||
1931 | urb->number_of_packets = packets; | |
1932 | urb->transfer_buffer_length = bytes; | |
084fb206 MF |
1933 | urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset, |
1934 | GFP_KERNEL, | |
1935 | &urb->transfer_dma); | |
1da177e4 | 1936 | if (!urb->transfer_buffer) { |
fabbf219 | 1937 | usb_free_urb(urb); |
1da177e4 LT |
1938 | return NULL; |
1939 | } | |
084fb206 MF |
1940 | if (offset) { |
1941 | memset(urb->transfer_buffer, GUARD_BYTE, offset); | |
1942 | urb->transfer_buffer += offset; | |
1943 | urb->transfer_dma += offset; | |
1944 | } | |
1945 | /* For inbound transfers use guard byte so that test fails if | |
1946 | data not correctly copied */ | |
1947 | memset(urb->transfer_buffer, | |
1948 | usb_pipein(urb->pipe) ? GUARD_BYTE : 0, | |
1949 | bytes); | |
1950 | ||
1da177e4 LT |
1951 | for (i = 0; i < packets; i++) { |
1952 | /* here, only the last packet will be short */ | |
fabbf219 | 1953 | urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp); |
1da177e4 LT |
1954 | bytes -= urb->iso_frame_desc[i].length; |
1955 | ||
1956 | urb->iso_frame_desc[i].offset = maxp * i; | |
1957 | } | |
1958 | ||
145f48c5 | 1959 | urb->complete = complicated_callback; |
fabbf219 | 1960 | /* urb->context = SET BY CALLER */ |
1da177e4 LT |
1961 | urb->interval = 1 << (desc->bInterval - 1); |
1962 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; | |
1963 | return urb; | |
1964 | } | |
1965 | ||
1966 | static int | |
18fc4ebd | 1967 | test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param, |
084fb206 | 1968 | int pipe, struct usb_endpoint_descriptor *desc, unsigned offset) |
1da177e4 | 1969 | { |
145f48c5 | 1970 | struct transfer_context context; |
1da177e4 LT |
1971 | struct usb_device *udev; |
1972 | unsigned i; | |
1973 | unsigned long packets = 0; | |
9da2150f | 1974 | int status = 0; |
41d3c0b8 | 1975 | struct urb *urbs[param->sglen]; |
1da177e4 | 1976 | |
cb84f568 DC |
1977 | if (!param->sglen || param->iterations > UINT_MAX / param->sglen) |
1978 | return -EINVAL; | |
1979 | ||
f55055b4 | 1980 | memset(&context, 0, sizeof(context)); |
1da177e4 | 1981 | context.count = param->iterations * param->sglen; |
1da177e4 | 1982 | context.dev = dev; |
145f48c5 | 1983 | context.is_iso = !!desc; |
fabbf219 MF |
1984 | init_completion(&context.done); |
1985 | spin_lock_init(&context.lock); | |
1da177e4 | 1986 | |
fabbf219 | 1987 | udev = testdev_to_usbdev(dev); |
1da177e4 LT |
1988 | |
1989 | for (i = 0; i < param->sglen; i++) { | |
145f48c5 PC |
1990 | if (context.is_iso) |
1991 | urbs[i] = iso_alloc_urb(udev, pipe, desc, | |
084fb206 | 1992 | param->length, offset); |
145f48c5 PC |
1993 | else |
1994 | urbs[i] = complicated_alloc_urb(udev, pipe, | |
1995 | param->length, 0); | |
1996 | ||
fabbf219 | 1997 | if (!urbs[i]) { |
1da177e4 LT |
1998 | status = -ENOMEM; |
1999 | goto fail; | |
2000 | } | |
2001 | packets += urbs[i]->number_of_packets; | |
fabbf219 | 2002 | urbs[i]->context = &context; |
1da177e4 LT |
2003 | } |
2004 | packets *= param->iterations; | |
145f48c5 PC |
2005 | |
2006 | if (context.is_iso) { | |
2007 | dev_info(&dev->intf->dev, | |
2008 | "iso period %d %sframes, wMaxPacket %d, transactions: %d\n", | |
2009 | 1 << (desc->bInterval - 1), | |
2010 | (udev->speed == USB_SPEED_HIGH) ? "micro" : "", | |
efdd17e6 | 2011 | usb_endpoint_maxp(desc), |
131e19b9 | 2012 | usb_endpoint_maxp_mult(desc)); |
145f48c5 PC |
2013 | |
2014 | dev_info(&dev->intf->dev, | |
2015 | "total %lu msec (%lu packets)\n", | |
2016 | (packets * (1 << (desc->bInterval - 1))) | |
2017 | / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), | |
2018 | packets); | |
2019 | } | |
1da177e4 | 2020 | |
fabbf219 | 2021 | spin_lock_irq(&context.lock); |
1da177e4 | 2022 | for (i = 0; i < param->sglen; i++) { |
9da2150f | 2023 | ++context.pending; |
fabbf219 | 2024 | status = usb_submit_urb(urbs[i], GFP_ATOMIC); |
1da177e4 | 2025 | if (status < 0) { |
fabbf219 | 2026 | ERROR(dev, "submit iso[%d], error %d\n", i, status); |
1da177e4 | 2027 | if (i == 0) { |
fabbf219 | 2028 | spin_unlock_irq(&context.lock); |
1da177e4 LT |
2029 | goto fail; |
2030 | } | |
2031 | ||
fabbf219 | 2032 | simple_free_urb(urbs[i]); |
e10e1bec | 2033 | urbs[i] = NULL; |
1da177e4 | 2034 | context.pending--; |
9da2150f AS |
2035 | context.submit_error = 1; |
2036 | break; | |
1da177e4 LT |
2037 | } |
2038 | } | |
fabbf219 | 2039 | spin_unlock_irq(&context.lock); |
1da177e4 | 2040 | |
fabbf219 | 2041 | wait_for_completion(&context.done); |
9da2150f | 2042 | |
e10e1bec ML |
2043 | for (i = 0; i < param->sglen; i++) { |
2044 | if (urbs[i]) | |
2045 | simple_free_urb(urbs[i]); | |
2046 | } | |
9da2150f AS |
2047 | /* |
2048 | * Isochronous transfers are expected to fail sometimes. As an | |
2049 | * arbitrary limit, we will report an error if any submissions | |
2050 | * fail or if the transfer failure rate is > 10%. | |
2051 | */ | |
2052 | if (status != 0) | |
2053 | ; | |
2054 | else if (context.submit_error) | |
2055 | status = -EACCES; | |
145f48c5 PC |
2056 | else if (context.errors > |
2057 | (context.is_iso ? context.packet_count / 10 : 0)) | |
9da2150f AS |
2058 | status = -EIO; |
2059 | return status; | |
1da177e4 LT |
2060 | |
2061 | fail: | |
2062 | for (i = 0; i < param->sglen; i++) { | |
fabbf219 MF |
2063 | if (urbs[i]) |
2064 | simple_free_urb(urbs[i]); | |
1da177e4 LT |
2065 | } |
2066 | return status; | |
2067 | } | |
2068 | ||
084fb206 MF |
2069 | static int test_unaligned_bulk( |
2070 | struct usbtest_dev *tdev, | |
2071 | int pipe, | |
2072 | unsigned length, | |
2073 | int iterations, | |
2074 | unsigned transfer_flags, | |
2075 | const char *label) | |
2076 | { | |
2077 | int retval; | |
145f48c5 PC |
2078 | struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev), |
2079 | pipe, length, transfer_flags, 1, 0, simple_callback); | |
084fb206 MF |
2080 | |
2081 | if (!urb) | |
2082 | return -ENOMEM; | |
2083 | ||
2084 | retval = simple_io(tdev, urb, iterations, 0, 0, label); | |
2085 | simple_free_urb(urb); | |
2086 | return retval; | |
2087 | } | |
2088 | ||
18fc4ebd | 2089 | /* Run tests. */ |
1da177e4 | 2090 | static int |
18fc4ebd | 2091 | usbtest_do_ioctl(struct usb_interface *intf, struct usbtest_param_32 *param) |
1da177e4 | 2092 | { |
fabbf219 MF |
2093 | struct usbtest_dev *dev = usb_get_intfdata(intf); |
2094 | struct usb_device *udev = testdev_to_usbdev(dev); | |
1da177e4 LT |
2095 | struct urb *urb; |
2096 | struct scatterlist *sg; | |
2097 | struct usb_sg_request req; | |
1da177e4 | 2098 | unsigned i; |
18fc4ebd | 2099 | int retval = -EOPNOTSUPP; |
1da177e4 | 2100 | |
8aafdf6a | 2101 | if (param->iterations <= 0) |
1da177e4 | 2102 | return -EINVAL; |
cb84f568 DC |
2103 | if (param->sglen > MAX_SGLEN) |
2104 | return -EINVAL; | |
1da177e4 LT |
2105 | /* |
2106 | * Just a bunch of test cases that every HCD is expected to handle. | |
2107 | * | |
2108 | * Some may need specific firmware, though it'd be good to have | |
2109 | * one firmware image to handle all the test cases. | |
2110 | * | |
2111 | * FIXME add more tests! cancel requests, verify the data, control | |
2112 | * queueing, concurrent read+write threads, and so on. | |
2113 | */ | |
1da177e4 LT |
2114 | switch (param->test_num) { |
2115 | ||
2116 | case 0: | |
28ffd79c | 2117 | dev_info(&intf->dev, "TEST 0: NOP\n"); |
1da177e4 LT |
2118 | retval = 0; |
2119 | break; | |
2120 | ||
2121 | /* Simple non-queued bulk I/O tests */ | |
2122 | case 1: | |
2123 | if (dev->out_pipe == 0) | |
2124 | break; | |
28ffd79c | 2125 | dev_info(&intf->dev, |
1da177e4 LT |
2126 | "TEST 1: write %d bytes %u times\n", |
2127 | param->length, param->iterations); | |
457a0955 | 2128 | urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); |
1da177e4 LT |
2129 | if (!urb) { |
2130 | retval = -ENOMEM; | |
2131 | break; | |
2132 | } | |
fabbf219 | 2133 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2134 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test1"); |
fabbf219 | 2135 | simple_free_urb(urb); |
1da177e4 LT |
2136 | break; |
2137 | case 2: | |
2138 | if (dev->in_pipe == 0) | |
2139 | break; | |
28ffd79c | 2140 | dev_info(&intf->dev, |
1da177e4 LT |
2141 | "TEST 2: read %d bytes %u times\n", |
2142 | param->length, param->iterations); | |
457a0955 | 2143 | urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); |
1da177e4 LT |
2144 | if (!urb) { |
2145 | retval = -ENOMEM; | |
2146 | break; | |
2147 | } | |
fabbf219 | 2148 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2149 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test2"); |
fabbf219 | 2150 | simple_free_urb(urb); |
1da177e4 LT |
2151 | break; |
2152 | case 3: | |
2153 | if (dev->out_pipe == 0 || param->vary == 0) | |
2154 | break; | |
28ffd79c | 2155 | dev_info(&intf->dev, |
1da177e4 LT |
2156 | "TEST 3: write/%d 0..%d bytes %u times\n", |
2157 | param->vary, param->length, param->iterations); | |
457a0955 | 2158 | urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); |
1da177e4 LT |
2159 | if (!urb) { |
2160 | retval = -ENOMEM; | |
2161 | break; | |
2162 | } | |
fabbf219 | 2163 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2164 | retval = simple_io(dev, urb, param->iterations, param->vary, |
1da177e4 | 2165 | 0, "test3"); |
fabbf219 | 2166 | simple_free_urb(urb); |
1da177e4 LT |
2167 | break; |
2168 | case 4: | |
2169 | if (dev->in_pipe == 0 || param->vary == 0) | |
2170 | break; | |
28ffd79c | 2171 | dev_info(&intf->dev, |
1da177e4 LT |
2172 | "TEST 4: read/%d 0..%d bytes %u times\n", |
2173 | param->vary, param->length, param->iterations); | |
457a0955 | 2174 | urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); |
1da177e4 LT |
2175 | if (!urb) { |
2176 | retval = -ENOMEM; | |
2177 | break; | |
2178 | } | |
fabbf219 | 2179 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2180 | retval = simple_io(dev, urb, param->iterations, param->vary, |
1da177e4 | 2181 | 0, "test4"); |
fabbf219 | 2182 | simple_free_urb(urb); |
1da177e4 LT |
2183 | break; |
2184 | ||
2185 | /* Queued bulk I/O tests */ | |
2186 | case 5: | |
2187 | if (dev->out_pipe == 0 || param->sglen == 0) | |
2188 | break; | |
28ffd79c | 2189 | dev_info(&intf->dev, |
1da177e4 LT |
2190 | "TEST 5: write %d sglists %d entries of %d bytes\n", |
2191 | param->iterations, | |
2192 | param->sglen, param->length); | |
b9a6e8e1 AS |
2193 | sg = alloc_sglist(param->sglen, param->length, |
2194 | 0, dev, dev->out_pipe); | |
1da177e4 LT |
2195 | if (!sg) { |
2196 | retval = -ENOMEM; | |
2197 | break; | |
2198 | } | |
fabbf219 | 2199 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2200 | retval = perform_sglist(dev, param->iterations, dev->out_pipe, |
1da177e4 | 2201 | &req, sg, param->sglen); |
fabbf219 | 2202 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2203 | break; |
2204 | ||
2205 | case 6: | |
2206 | if (dev->in_pipe == 0 || param->sglen == 0) | |
2207 | break; | |
28ffd79c | 2208 | dev_info(&intf->dev, |
1da177e4 LT |
2209 | "TEST 6: read %d sglists %d entries of %d bytes\n", |
2210 | param->iterations, | |
2211 | param->sglen, param->length); | |
b9a6e8e1 AS |
2212 | sg = alloc_sglist(param->sglen, param->length, |
2213 | 0, dev, dev->in_pipe); | |
1da177e4 LT |
2214 | if (!sg) { |
2215 | retval = -ENOMEM; | |
2216 | break; | |
2217 | } | |
fabbf219 | 2218 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2219 | retval = perform_sglist(dev, param->iterations, dev->in_pipe, |
1da177e4 | 2220 | &req, sg, param->sglen); |
fabbf219 | 2221 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2222 | break; |
2223 | case 7: | |
2224 | if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) | |
2225 | break; | |
28ffd79c | 2226 | dev_info(&intf->dev, |
1da177e4 LT |
2227 | "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", |
2228 | param->vary, param->iterations, | |
2229 | param->sglen, param->length); | |
b9a6e8e1 AS |
2230 | sg = alloc_sglist(param->sglen, param->length, |
2231 | param->vary, dev, dev->out_pipe); | |
1da177e4 LT |
2232 | if (!sg) { |
2233 | retval = -ENOMEM; | |
2234 | break; | |
2235 | } | |
fabbf219 | 2236 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2237 | retval = perform_sglist(dev, param->iterations, dev->out_pipe, |
1da177e4 | 2238 | &req, sg, param->sglen); |
fabbf219 | 2239 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2240 | break; |
2241 | case 8: | |
2242 | if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) | |
2243 | break; | |
28ffd79c | 2244 | dev_info(&intf->dev, |
1da177e4 LT |
2245 | "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", |
2246 | param->vary, param->iterations, | |
2247 | param->sglen, param->length); | |
b9a6e8e1 AS |
2248 | sg = alloc_sglist(param->sglen, param->length, |
2249 | param->vary, dev, dev->in_pipe); | |
1da177e4 LT |
2250 | if (!sg) { |
2251 | retval = -ENOMEM; | |
2252 | break; | |
2253 | } | |
fabbf219 | 2254 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2255 | retval = perform_sglist(dev, param->iterations, dev->in_pipe, |
1da177e4 | 2256 | &req, sg, param->sglen); |
fabbf219 | 2257 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2258 | break; |
2259 | ||
2260 | /* non-queued sanity tests for control (chapter 9 subset) */ | |
2261 | case 9: | |
2262 | retval = 0; | |
28ffd79c | 2263 | dev_info(&intf->dev, |
1da177e4 LT |
2264 | "TEST 9: ch9 (subset) control tests, %d times\n", |
2265 | param->iterations); | |
2266 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2267 | retval = ch9_postconfig(dev); |
1da177e4 | 2268 | if (retval) |
28ffd79c DB |
2269 | dev_err(&intf->dev, "ch9 subset failed, " |
2270 | "iterations left %d\n", i); | |
1da177e4 LT |
2271 | break; |
2272 | ||
2273 | /* queued control messaging */ | |
2274 | case 10: | |
1da177e4 | 2275 | retval = 0; |
28ffd79c | 2276 | dev_info(&intf->dev, |
1da177e4 LT |
2277 | "TEST 10: queue %d control calls, %d times\n", |
2278 | param->sglen, | |
2279 | param->iterations); | |
fabbf219 | 2280 | retval = test_ctrl_queue(dev, param); |
1da177e4 LT |
2281 | break; |
2282 | ||
2283 | /* simple non-queued unlinks (ring with one urb) */ | |
2284 | case 11: | |
2285 | if (dev->in_pipe == 0 || !param->length) | |
2286 | break; | |
2287 | retval = 0; | |
28ffd79c | 2288 | dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n", |
1da177e4 LT |
2289 | param->iterations, param->length); |
2290 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2291 | retval = unlink_simple(dev, dev->in_pipe, |
1da177e4 LT |
2292 | param->length); |
2293 | if (retval) | |
28ffd79c | 2294 | dev_err(&intf->dev, "unlink reads failed %d, " |
1da177e4 LT |
2295 | "iterations left %d\n", retval, i); |
2296 | break; | |
2297 | case 12: | |
2298 | if (dev->out_pipe == 0 || !param->length) | |
2299 | break; | |
2300 | retval = 0; | |
28ffd79c | 2301 | dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n", |
1da177e4 LT |
2302 | param->iterations, param->length); |
2303 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2304 | retval = unlink_simple(dev, dev->out_pipe, |
1da177e4 LT |
2305 | param->length); |
2306 | if (retval) | |
28ffd79c | 2307 | dev_err(&intf->dev, "unlink writes failed %d, " |
1da177e4 LT |
2308 | "iterations left %d\n", retval, i); |
2309 | break; | |
2310 | ||
2311 | /* ep halt tests */ | |
2312 | case 13: | |
2313 | if (dev->out_pipe == 0 && dev->in_pipe == 0) | |
2314 | break; | |
2315 | retval = 0; | |
28ffd79c | 2316 | dev_info(&intf->dev, "TEST 13: set/clear %d halts\n", |
1da177e4 LT |
2317 | param->iterations); |
2318 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2319 | retval = halt_simple(dev); |
28ffd79c | 2320 | |
1da177e4 | 2321 | if (retval) |
28ffd79c | 2322 | ERROR(dev, "halts failed, iterations left %d\n", i); |
1da177e4 LT |
2323 | break; |
2324 | ||
2325 | /* control write tests */ | |
2326 | case 14: | |
2327 | if (!dev->info->ctrl_out) | |
2328 | break; | |
28ffd79c | 2329 | dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", |
ff7c79e4 DB |
2330 | param->iterations, |
2331 | realworld ? 1 : 0, param->length, | |
2332 | param->vary); | |
28ffd79c | 2333 | retval = ctrl_out(dev, param->iterations, |
084fb206 | 2334 | param->length, param->vary, 0); |
1da177e4 LT |
2335 | break; |
2336 | ||
2337 | /* iso write tests */ | |
2338 | case 15: | |
2339 | if (dev->out_iso_pipe == 0 || param->sglen == 0) | |
2340 | break; | |
28ffd79c | 2341 | dev_info(&intf->dev, |
1da177e4 LT |
2342 | "TEST 15: write %d iso, %d entries of %d bytes\n", |
2343 | param->iterations, | |
2344 | param->sglen, param->length); | |
fabbf219 | 2345 | /* FIRMWARE: iso sink */ |
145f48c5 | 2346 | retval = test_queue(dev, param, |
084fb206 | 2347 | dev->out_iso_pipe, dev->iso_out, 0); |
1da177e4 LT |
2348 | break; |
2349 | ||
2350 | /* iso read tests */ | |
2351 | case 16: | |
2352 | if (dev->in_iso_pipe == 0 || param->sglen == 0) | |
2353 | break; | |
28ffd79c | 2354 | dev_info(&intf->dev, |
1da177e4 LT |
2355 | "TEST 16: read %d iso, %d entries of %d bytes\n", |
2356 | param->iterations, | |
2357 | param->sglen, param->length); | |
fabbf219 | 2358 | /* FIRMWARE: iso source */ |
145f48c5 | 2359 | retval = test_queue(dev, param, |
084fb206 | 2360 | dev->in_iso_pipe, dev->iso_in, 0); |
1da177e4 LT |
2361 | break; |
2362 | ||
fabbf219 | 2363 | /* FIXME scatterlist cancel (needs helper thread) */ |
1da177e4 | 2364 | |
084fb206 MF |
2365 | /* Tests for bulk I/O using DMA mapping by core and odd address */ |
2366 | case 17: | |
2367 | if (dev->out_pipe == 0) | |
2368 | break; | |
2369 | dev_info(&intf->dev, | |
2370 | "TEST 17: write odd addr %d bytes %u times core map\n", | |
2371 | param->length, param->iterations); | |
2372 | ||
2373 | retval = test_unaligned_bulk( | |
2374 | dev, dev->out_pipe, | |
2375 | param->length, param->iterations, | |
2376 | 0, "test17"); | |
2377 | break; | |
2378 | ||
2379 | case 18: | |
2380 | if (dev->in_pipe == 0) | |
2381 | break; | |
2382 | dev_info(&intf->dev, | |
2383 | "TEST 18: read odd addr %d bytes %u times core map\n", | |
2384 | param->length, param->iterations); | |
2385 | ||
2386 | retval = test_unaligned_bulk( | |
2387 | dev, dev->in_pipe, | |
2388 | param->length, param->iterations, | |
2389 | 0, "test18"); | |
2390 | break; | |
2391 | ||
2392 | /* Tests for bulk I/O using premapped coherent buffer and odd address */ | |
2393 | case 19: | |
2394 | if (dev->out_pipe == 0) | |
2395 | break; | |
2396 | dev_info(&intf->dev, | |
2397 | "TEST 19: write odd addr %d bytes %u times premapped\n", | |
2398 | param->length, param->iterations); | |
2399 | ||
2400 | retval = test_unaligned_bulk( | |
2401 | dev, dev->out_pipe, | |
2402 | param->length, param->iterations, | |
2403 | URB_NO_TRANSFER_DMA_MAP, "test19"); | |
2404 | break; | |
2405 | ||
2406 | case 20: | |
2407 | if (dev->in_pipe == 0) | |
2408 | break; | |
2409 | dev_info(&intf->dev, | |
2410 | "TEST 20: read odd addr %d bytes %u times premapped\n", | |
2411 | param->length, param->iterations); | |
2412 | ||
2413 | retval = test_unaligned_bulk( | |
2414 | dev, dev->in_pipe, | |
2415 | param->length, param->iterations, | |
2416 | URB_NO_TRANSFER_DMA_MAP, "test20"); | |
2417 | break; | |
2418 | ||
2419 | /* control write tests with unaligned buffer */ | |
2420 | case 21: | |
2421 | if (!dev->info->ctrl_out) | |
2422 | break; | |
2423 | dev_info(&intf->dev, | |
2424 | "TEST 21: %d ep0out odd addr, %d..%d vary %d\n", | |
2425 | param->iterations, | |
2426 | realworld ? 1 : 0, param->length, | |
2427 | param->vary); | |
2428 | retval = ctrl_out(dev, param->iterations, | |
2429 | param->length, param->vary, 1); | |
2430 | break; | |
2431 | ||
2432 | /* unaligned iso tests */ | |
2433 | case 22: | |
2434 | if (dev->out_iso_pipe == 0 || param->sglen == 0) | |
2435 | break; | |
2436 | dev_info(&intf->dev, | |
2437 | "TEST 22: write %d iso odd, %d entries of %d bytes\n", | |
2438 | param->iterations, | |
2439 | param->sglen, param->length); | |
145f48c5 | 2440 | retval = test_queue(dev, param, |
084fb206 MF |
2441 | dev->out_iso_pipe, dev->iso_out, 1); |
2442 | break; | |
2443 | ||
2444 | case 23: | |
2445 | if (dev->in_iso_pipe == 0 || param->sglen == 0) | |
2446 | break; | |
2447 | dev_info(&intf->dev, | |
2448 | "TEST 23: read %d iso odd, %d entries of %d bytes\n", | |
2449 | param->iterations, | |
2450 | param->sglen, param->length); | |
145f48c5 | 2451 | retval = test_queue(dev, param, |
084fb206 MF |
2452 | dev->in_iso_pipe, dev->iso_in, 1); |
2453 | break; | |
2454 | ||
869410f8 AS |
2455 | /* unlink URBs from a bulk-OUT queue */ |
2456 | case 24: | |
2457 | if (dev->out_pipe == 0 || !param->length || param->sglen < 4) | |
2458 | break; | |
2459 | retval = 0; | |
2cb50000 | 2460 | dev_info(&intf->dev, "TEST 24: unlink from %d queues of " |
869410f8 AS |
2461 | "%d %d-byte writes\n", |
2462 | param->iterations, param->sglen, param->length); | |
2463 | for (i = param->iterations; retval == 0 && i > 0; --i) { | |
2464 | retval = unlink_queued(dev, dev->out_pipe, | |
2465 | param->sglen, param->length); | |
2466 | if (retval) { | |
2467 | dev_err(&intf->dev, | |
2468 | "unlink queued writes failed %d, " | |
2469 | "iterations left %d\n", retval, i); | |
2470 | break; | |
2471 | } | |
2472 | } | |
2473 | break; | |
2474 | ||
457a0955 AV |
2475 | /* Simple non-queued interrupt I/O tests */ |
2476 | case 25: | |
2477 | if (dev->out_int_pipe == 0) | |
2478 | break; | |
2479 | dev_info(&intf->dev, | |
2480 | "TEST 25: write %d bytes %u times\n", | |
2481 | param->length, param->iterations); | |
2482 | urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length, | |
2483 | dev->int_out->bInterval); | |
2484 | if (!urb) { | |
2485 | retval = -ENOMEM; | |
2486 | break; | |
2487 | } | |
2488 | /* FIRMWARE: interrupt sink (maybe accepts short writes) */ | |
2489 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test25"); | |
2490 | simple_free_urb(urb); | |
2491 | break; | |
2492 | case 26: | |
2493 | if (dev->in_int_pipe == 0) | |
2494 | break; | |
2495 | dev_info(&intf->dev, | |
2496 | "TEST 26: read %d bytes %u times\n", | |
2497 | param->length, param->iterations); | |
2498 | urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length, | |
2499 | dev->int_in->bInterval); | |
2500 | if (!urb) { | |
2501 | retval = -ENOMEM; | |
2502 | break; | |
2503 | } | |
2504 | /* FIRMWARE: interrupt source (maybe generates short writes) */ | |
2505 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test26"); | |
2506 | simple_free_urb(urb); | |
2507 | break; | |
145f48c5 PC |
2508 | case 27: |
2509 | /* We do performance test, so ignore data compare */ | |
2510 | if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0) | |
2511 | break; | |
2512 | dev_info(&intf->dev, | |
2513 | "TEST 27: bulk write %dMbytes\n", (param->iterations * | |
2514 | param->sglen * param->length) / (1024 * 1024)); | |
2515 | retval = test_queue(dev, param, | |
2516 | dev->out_pipe, NULL, 0); | |
2517 | break; | |
2518 | case 28: | |
2519 | if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0) | |
2520 | break; | |
2521 | dev_info(&intf->dev, | |
2522 | "TEST 28: bulk read %dMbytes\n", (param->iterations * | |
2523 | param->sglen * param->length) / (1024 * 1024)); | |
2524 | retval = test_queue(dev, param, | |
2525 | dev->in_pipe, NULL, 0); | |
2526 | break; | |
1da177e4 | 2527 | } |
18fc4ebd DD |
2528 | return retval; |
2529 | } | |
2530 | ||
2531 | /*-------------------------------------------------------------------------*/ | |
2532 | ||
2533 | /* We only have this one interface to user space, through usbfs. | |
2534 | * User mode code can scan usbfs to find N different devices (maybe on | |
2535 | * different busses) to use when testing, and allocate one thread per | |
2536 | * test. So discovery is simplified, and we have no device naming issues. | |
2537 | * | |
2538 | * Don't use these only as stress/load tests. Use them along with with | |
2539 | * other USB bus activity: plugging, unplugging, mousing, mp3 playback, | |
2540 | * video capture, and so on. Run different tests at different times, in | |
2541 | * different sequences. Nothing here should interact with other devices, | |
2542 | * except indirectly by consuming USB bandwidth and CPU resources for test | |
2543 | * threads and request completion. But the only way to know that for sure | |
2544 | * is to test when HC queues are in use by many devices. | |
2545 | * | |
2546 | * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(), | |
2547 | * it locks out usbcore in certain code paths. Notably, if you disconnect | |
2548 | * the device-under-test, hub_wq will wait block forever waiting for the | |
2549 | * ioctl to complete ... so that usb_disconnect() can abort the pending | |
2550 | * urbs and then call usbtest_disconnect(). To abort a test, you're best | |
2551 | * off just killing the userspace task and waiting for it to exit. | |
2552 | */ | |
2553 | ||
2554 | static int | |
2555 | usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) | |
2556 | { | |
2557 | ||
2558 | struct usbtest_dev *dev = usb_get_intfdata(intf); | |
2559 | struct usbtest_param_64 *param_64 = buf; | |
2560 | struct usbtest_param_32 temp; | |
2561 | struct usbtest_param_32 *param_32 = buf; | |
2562 | struct timespec64 start; | |
2563 | struct timespec64 end; | |
2564 | struct timespec64 duration; | |
2565 | int retval = -EOPNOTSUPP; | |
2566 | ||
2567 | /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */ | |
2568 | ||
2569 | pattern = mod_pattern; | |
2570 | ||
2571 | if (mutex_lock_interruptible(&dev->lock)) | |
2572 | return -ERESTARTSYS; | |
2573 | ||
2574 | /* FIXME: What if a system sleep starts while a test is running? */ | |
2575 | ||
2576 | /* some devices, like ez-usb default devices, need a non-default | |
2577 | * altsetting to have any active endpoints. some tests change | |
2578 | * altsettings; force a default so most tests don't need to check. | |
2579 | */ | |
2580 | if (dev->info->alt >= 0) { | |
2581 | if (intf->altsetting->desc.bInterfaceNumber) { | |
2582 | retval = -ENODEV; | |
2583 | goto free_mutex; | |
2584 | } | |
2585 | retval = set_altsetting(dev, dev->info->alt); | |
2586 | if (retval) { | |
2587 | dev_err(&intf->dev, | |
2588 | "set altsetting to %d failed, %d\n", | |
2589 | dev->info->alt, retval); | |
2590 | goto free_mutex; | |
2591 | } | |
2592 | } | |
2593 | ||
2594 | switch (code) { | |
2595 | case USBTEST_REQUEST_64: | |
2596 | temp.test_num = param_64->test_num; | |
2597 | temp.iterations = param_64->iterations; | |
2598 | temp.length = param_64->length; | |
2599 | temp.sglen = param_64->sglen; | |
2600 | temp.vary = param_64->vary; | |
2601 | param_32 = &temp; | |
2602 | break; | |
2603 | ||
2604 | case USBTEST_REQUEST_32: | |
2605 | break; | |
2606 | ||
2607 | default: | |
2608 | retval = -EOPNOTSUPP; | |
2609 | goto free_mutex; | |
2610 | } | |
2611 | ||
2612 | ktime_get_ts64(&start); | |
2613 | ||
2614 | retval = usbtest_do_ioctl(intf, param_32); | |
28324936 | 2615 | if (retval < 0) |
18fc4ebd DD |
2616 | goto free_mutex; |
2617 | ||
2618 | ktime_get_ts64(&end); | |
2619 | ||
2620 | duration = timespec64_sub(end, start); | |
2621 | ||
2622 | temp.duration_sec = duration.tv_sec; | |
2623 | temp.duration_usec = duration.tv_nsec/NSEC_PER_USEC; | |
2624 | ||
2625 | switch (code) { | |
2626 | case USBTEST_REQUEST_32: | |
2627 | param_32->duration_sec = temp.duration_sec; | |
2628 | param_32->duration_usec = temp.duration_usec; | |
2629 | break; | |
2630 | ||
2631 | case USBTEST_REQUEST_64: | |
2632 | param_64->duration_sec = temp.duration_sec; | |
2633 | param_64->duration_usec = temp.duration_usec; | |
2634 | break; | |
1da177e4 | 2635 | } |
18fc4ebd DD |
2636 | |
2637 | free_mutex: | |
1cfab028 | 2638 | mutex_unlock(&dev->lock); |
1da177e4 LT |
2639 | return retval; |
2640 | } | |
2641 | ||
2642 | /*-------------------------------------------------------------------------*/ | |
2643 | ||
fabbf219 MF |
2644 | static unsigned force_interrupt; |
2645 | module_param(force_interrupt, uint, 0); | |
2646 | MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt"); | |
1da177e4 LT |
2647 | |
2648 | #ifdef GENERIC | |
2649 | static unsigned short vendor; | |
2650 | module_param(vendor, ushort, 0); | |
fabbf219 | 2651 | MODULE_PARM_DESC(vendor, "vendor code (from usb-if)"); |
1da177e4 LT |
2652 | |
2653 | static unsigned short product; | |
2654 | module_param(product, ushort, 0); | |
fabbf219 | 2655 | MODULE_PARM_DESC(product, "product code (from vendor)"); |
1da177e4 LT |
2656 | #endif |
2657 | ||
2658 | static int | |
fabbf219 | 2659 | usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1da177e4 LT |
2660 | { |
2661 | struct usb_device *udev; | |
2662 | struct usbtest_dev *dev; | |
2663 | struct usbtest_info *info; | |
2664 | char *rtest, *wtest; | |
2665 | char *irtest, *iwtest; | |
457a0955 | 2666 | char *intrtest, *intwtest; |
1da177e4 | 2667 | |
fabbf219 | 2668 | udev = interface_to_usbdev(intf); |
1da177e4 LT |
2669 | |
2670 | #ifdef GENERIC | |
2671 | /* specify devices by module parameters? */ | |
2672 | if (id->match_flags == 0) { | |
2673 | /* vendor match required, product match optional */ | |
2674 | if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) | |
2675 | return -ENODEV; | |
2676 | if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) | |
2677 | return -ENODEV; | |
28ffd79c DB |
2678 | dev_info(&intf->dev, "matched module params, " |
2679 | "vend=0x%04x prod=0x%04x\n", | |
1da177e4 LT |
2680 | le16_to_cpu(udev->descriptor.idVendor), |
2681 | le16_to_cpu(udev->descriptor.idProduct)); | |
2682 | } | |
2683 | #endif | |
2684 | ||
e94b1766 | 2685 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1da177e4 LT |
2686 | if (!dev) |
2687 | return -ENOMEM; | |
1da177e4 LT |
2688 | info = (struct usbtest_info *) id->driver_info; |
2689 | dev->info = info; | |
1cfab028 | 2690 | mutex_init(&dev->lock); |
1da177e4 LT |
2691 | |
2692 | dev->intf = intf; | |
2693 | ||
2694 | /* cacheline-aligned scratch for i/o */ | |
fabbf219 MF |
2695 | dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL); |
2696 | if (dev->buf == NULL) { | |
2697 | kfree(dev); | |
1da177e4 LT |
2698 | return -ENOMEM; |
2699 | } | |
2700 | ||
2701 | /* NOTE this doesn't yet test the handful of difference that are | |
2702 | * visible with high speed interrupts: bigger maxpacket (1K) and | |
2703 | * "high bandwidth" modes (up to 3 packets/uframe). | |
2704 | */ | |
2705 | rtest = wtest = ""; | |
2706 | irtest = iwtest = ""; | |
457a0955 | 2707 | intrtest = intwtest = ""; |
1da177e4 LT |
2708 | if (force_interrupt || udev->speed == USB_SPEED_LOW) { |
2709 | if (info->ep_in) { | |
fabbf219 | 2710 | dev->in_pipe = usb_rcvintpipe(udev, info->ep_in); |
1da177e4 LT |
2711 | rtest = " intr-in"; |
2712 | } | |
2713 | if (info->ep_out) { | |
fabbf219 | 2714 | dev->out_pipe = usb_sndintpipe(udev, info->ep_out); |
1da177e4 LT |
2715 | wtest = " intr-out"; |
2716 | } | |
2717 | } else { | |
d0b4652f | 2718 | if (override_alt >= 0 || info->autoconf) { |
1da177e4 LT |
2719 | int status; |
2720 | ||
fabbf219 | 2721 | status = get_endpoints(dev, intf); |
1da177e4 | 2722 | if (status < 0) { |
b6c63937 | 2723 | WARNING(dev, "couldn't get endpoints, %d\n", |
28ffd79c | 2724 | status); |
f4a728d0 JL |
2725 | kfree(dev->buf); |
2726 | kfree(dev); | |
1da177e4 LT |
2727 | return status; |
2728 | } | |
2729 | /* may find bulk or ISO pipes */ | |
2730 | } else { | |
2731 | if (info->ep_in) | |
fabbf219 | 2732 | dev->in_pipe = usb_rcvbulkpipe(udev, |
1da177e4 LT |
2733 | info->ep_in); |
2734 | if (info->ep_out) | |
fabbf219 | 2735 | dev->out_pipe = usb_sndbulkpipe(udev, |
1da177e4 LT |
2736 | info->ep_out); |
2737 | } | |
2738 | if (dev->in_pipe) | |
2739 | rtest = " bulk-in"; | |
2740 | if (dev->out_pipe) | |
2741 | wtest = " bulk-out"; | |
2742 | if (dev->in_iso_pipe) | |
2743 | irtest = " iso-in"; | |
2744 | if (dev->out_iso_pipe) | |
2745 | iwtest = " iso-out"; | |
457a0955 AV |
2746 | if (dev->in_int_pipe) |
2747 | intrtest = " int-in"; | |
2748 | if (dev->out_int_pipe) | |
2749 | intwtest = " int-out"; | |
1da177e4 LT |
2750 | } |
2751 | ||
fabbf219 MF |
2752 | usb_set_intfdata(intf, dev); |
2753 | dev_info(&intf->dev, "%s\n", info->name); | |
457a0955 | 2754 | dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n", |
e538dfda | 2755 | usb_speed_string(udev->speed), |
1da177e4 LT |
2756 | info->ctrl_out ? " in/out" : "", |
2757 | rtest, wtest, | |
2758 | irtest, iwtest, | |
457a0955 | 2759 | intrtest, intwtest, |
1da177e4 LT |
2760 | info->alt >= 0 ? " (+alt)" : ""); |
2761 | return 0; | |
2762 | } | |
2763 | ||
fabbf219 | 2764 | static int usbtest_suspend(struct usb_interface *intf, pm_message_t message) |
ff7c79e4 | 2765 | { |
ff7c79e4 DB |
2766 | return 0; |
2767 | } | |
2768 | ||
fabbf219 | 2769 | static int usbtest_resume(struct usb_interface *intf) |
ff7c79e4 | 2770 | { |
ff7c79e4 DB |
2771 | return 0; |
2772 | } | |
2773 | ||
2774 | ||
fabbf219 | 2775 | static void usbtest_disconnect(struct usb_interface *intf) |
1da177e4 | 2776 | { |
fabbf219 | 2777 | struct usbtest_dev *dev = usb_get_intfdata(intf); |
1da177e4 | 2778 | |
fabbf219 MF |
2779 | usb_set_intfdata(intf, NULL); |
2780 | dev_dbg(&intf->dev, "disconnect\n"); | |
2781 | kfree(dev); | |
1da177e4 LT |
2782 | } |
2783 | ||
2784 | /* Basic testing only needs a device that can source or sink bulk traffic. | |
2785 | * Any device can test control transfers (default with GENERIC binding). | |
2786 | * | |
2787 | * Several entries work with the default EP0 implementation that's built | |
2788 | * into EZ-USB chips. There's a default vendor ID which can be overridden | |
2789 | * by (very) small config EEPROMS, but otherwise all these devices act | |
2790 | * identically until firmware is loaded: only EP0 works. It turns out | |
2791 | * to be easy to make other endpoints work, without modifying that EP0 | |
2792 | * behavior. For now, we expect that kind of firmware. | |
2793 | */ | |
2794 | ||
2795 | /* an21xx or fx versions of ez-usb */ | |
2796 | static struct usbtest_info ez1_info = { | |
2797 | .name = "EZ-USB device", | |
2798 | .ep_in = 2, | |
2799 | .ep_out = 2, | |
2800 | .alt = 1, | |
2801 | }; | |
2802 | ||
2803 | /* fx2 version of ez-usb */ | |
2804 | static struct usbtest_info ez2_info = { | |
2805 | .name = "FX2 device", | |
2806 | .ep_in = 6, | |
2807 | .ep_out = 2, | |
2808 | .alt = 1, | |
2809 | }; | |
2810 | ||
2811 | /* ezusb family device with dedicated usb test firmware, | |
2812 | */ | |
2813 | static struct usbtest_info fw_info = { | |
2814 | .name = "usb test device", | |
2815 | .ep_in = 2, | |
2816 | .ep_out = 2, | |
2817 | .alt = 1, | |
fabbf219 | 2818 | .autoconf = 1, /* iso and ctrl_out need autoconf */ |
1da177e4 | 2819 | .ctrl_out = 1, |
fabbf219 | 2820 | .iso = 1, /* iso_ep's are #8 in/out */ |
1da177e4 LT |
2821 | }; |
2822 | ||
2823 | /* peripheral running Linux and 'zero.c' test firmware, or | |
2824 | * its user-mode cousin. different versions of this use | |
2825 | * different hardware with the same vendor/product codes. | |
2826 | * host side MUST rely on the endpoint descriptors. | |
2827 | */ | |
2828 | static struct usbtest_info gz_info = { | |
2829 | .name = "Linux gadget zero", | |
2830 | .autoconf = 1, | |
2831 | .ctrl_out = 1, | |
4b85c624 | 2832 | .iso = 1, |
457a0955 | 2833 | .intr = 1, |
1da177e4 LT |
2834 | .alt = 0, |
2835 | }; | |
2836 | ||
2837 | static struct usbtest_info um_info = { | |
2838 | .name = "Linux user mode test driver", | |
2839 | .autoconf = 1, | |
2840 | .alt = -1, | |
2841 | }; | |
2842 | ||
2843 | static struct usbtest_info um2_info = { | |
2844 | .name = "Linux user mode ISO test driver", | |
2845 | .autoconf = 1, | |
2846 | .iso = 1, | |
2847 | .alt = -1, | |
2848 | }; | |
2849 | ||
2850 | #ifdef IBOT2 | |
2851 | /* this is a nice source of high speed bulk data; | |
2852 | * uses an FX2, with firmware provided in the device | |
2853 | */ | |
2854 | static struct usbtest_info ibot2_info = { | |
2855 | .name = "iBOT2 webcam", | |
2856 | .ep_in = 2, | |
2857 | .alt = -1, | |
2858 | }; | |
2859 | #endif | |
2860 | ||
2861 | #ifdef GENERIC | |
2862 | /* we can use any device to test control traffic */ | |
2863 | static struct usbtest_info generic_info = { | |
2864 | .name = "Generic USB device", | |
2865 | .alt = -1, | |
2866 | }; | |
2867 | #endif | |
2868 | ||
1da177e4 | 2869 | |
33b9e162 | 2870 | static const struct usb_device_id id_table[] = { |
1da177e4 | 2871 | |
1da177e4 LT |
2872 | /*-------------------------------------------------------------*/ |
2873 | ||
2874 | /* EZ-USB devices which download firmware to replace (or in our | |
2875 | * case augment) the default device implementation. | |
2876 | */ | |
2877 | ||
2878 | /* generic EZ-USB FX controller */ | |
fabbf219 | 2879 | { USB_DEVICE(0x0547, 0x2235), |
1da177e4 | 2880 | .driver_info = (unsigned long) &ez1_info, |
fabbf219 | 2881 | }, |
1da177e4 LT |
2882 | |
2883 | /* CY3671 development board with EZ-USB FX */ | |
fabbf219 | 2884 | { USB_DEVICE(0x0547, 0x0080), |
1da177e4 | 2885 | .driver_info = (unsigned long) &ez1_info, |
fabbf219 | 2886 | }, |
1da177e4 LT |
2887 | |
2888 | /* generic EZ-USB FX2 controller (or development board) */ | |
fabbf219 | 2889 | { USB_DEVICE(0x04b4, 0x8613), |
1da177e4 | 2890 | .driver_info = (unsigned long) &ez2_info, |
fabbf219 | 2891 | }, |
1da177e4 LT |
2892 | |
2893 | /* re-enumerated usb test device firmware */ | |
fabbf219 | 2894 | { USB_DEVICE(0xfff0, 0xfff0), |
1da177e4 | 2895 | .driver_info = (unsigned long) &fw_info, |
fabbf219 | 2896 | }, |
1da177e4 LT |
2897 | |
2898 | /* "Gadget Zero" firmware runs under Linux */ | |
fabbf219 | 2899 | { USB_DEVICE(0x0525, 0xa4a0), |
1da177e4 | 2900 | .driver_info = (unsigned long) &gz_info, |
fabbf219 | 2901 | }, |
1da177e4 LT |
2902 | |
2903 | /* so does a user-mode variant */ | |
fabbf219 | 2904 | { USB_DEVICE(0x0525, 0xa4a4), |
1da177e4 | 2905 | .driver_info = (unsigned long) &um_info, |
fabbf219 | 2906 | }, |
1da177e4 LT |
2907 | |
2908 | /* ... and a user-mode variant that talks iso */ | |
fabbf219 | 2909 | { USB_DEVICE(0x0525, 0xa4a3), |
1da177e4 | 2910 | .driver_info = (unsigned long) &um2_info, |
fabbf219 | 2911 | }, |
1da177e4 LT |
2912 | |
2913 | #ifdef KEYSPAN_19Qi | |
2914 | /* Keyspan 19qi uses an21xx (original EZ-USB) */ | |
fabbf219 MF |
2915 | /* this does not coexist with the real Keyspan 19qi driver! */ |
2916 | { USB_DEVICE(0x06cd, 0x010b), | |
1da177e4 | 2917 | .driver_info = (unsigned long) &ez1_info, |
fabbf219 | 2918 | }, |
1da177e4 LT |
2919 | #endif |
2920 | ||
2921 | /*-------------------------------------------------------------*/ | |
2922 | ||
2923 | #ifdef IBOT2 | |
2924 | /* iBOT2 makes a nice source of high speed bulk-in data */ | |
fabbf219 MF |
2925 | /* this does not coexist with a real iBOT2 driver! */ |
2926 | { USB_DEVICE(0x0b62, 0x0059), | |
1da177e4 | 2927 | .driver_info = (unsigned long) &ibot2_info, |
fabbf219 | 2928 | }, |
1da177e4 LT |
2929 | #endif |
2930 | ||
2931 | /*-------------------------------------------------------------*/ | |
2932 | ||
2933 | #ifdef GENERIC | |
2934 | /* module params can specify devices to use for control tests */ | |
2935 | { .driver_info = (unsigned long) &generic_info, }, | |
2936 | #endif | |
2937 | ||
2938 | /*-------------------------------------------------------------*/ | |
2939 | ||
2940 | { } | |
2941 | }; | |
fabbf219 | 2942 | MODULE_DEVICE_TABLE(usb, id_table); |
1da177e4 LT |
2943 | |
2944 | static struct usb_driver usbtest_driver = { | |
1da177e4 LT |
2945 | .name = "usbtest", |
2946 | .id_table = id_table, | |
2947 | .probe = usbtest_probe, | |
c532b29a | 2948 | .unlocked_ioctl = usbtest_ioctl, |
1da177e4 | 2949 | .disconnect = usbtest_disconnect, |
ff7c79e4 DB |
2950 | .suspend = usbtest_suspend, |
2951 | .resume = usbtest_resume, | |
1da177e4 LT |
2952 | }; |
2953 | ||
2954 | /*-------------------------------------------------------------------------*/ | |
2955 | ||
fabbf219 | 2956 | static int __init usbtest_init(void) |
1da177e4 LT |
2957 | { |
2958 | #ifdef GENERIC | |
2959 | if (vendor) | |
28ffd79c | 2960 | pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product); |
1da177e4 | 2961 | #endif |
fabbf219 | 2962 | return usb_register(&usbtest_driver); |
1da177e4 | 2963 | } |
fabbf219 | 2964 | module_init(usbtest_init); |
1da177e4 | 2965 | |
fabbf219 | 2966 | static void __exit usbtest_exit(void) |
1da177e4 | 2967 | { |
fabbf219 | 2968 | usb_deregister(&usbtest_driver); |
1da177e4 | 2969 | } |
fabbf219 | 2970 | module_exit(usbtest_exit); |
1da177e4 | 2971 | |
fabbf219 MF |
2972 | MODULE_DESCRIPTION("USB Core/HCD Testing Driver"); |
2973 | MODULE_LICENSE("GPL"); | |
1da177e4 | 2974 |