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Commit | Line | Data |
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1da177e4 LT |
1 | #include <linux/kernel.h> |
2 | #include <linux/errno.h> | |
3 | #include <linux/init.h> | |
4 | #include <linux/slab.h> | |
5 | #include <linux/mm.h> | |
6 | #include <linux/module.h> | |
7 | #include <linux/moduleparam.h> | |
378f058c | 8 | #include <linux/scatterlist.h> |
1cfab028 | 9 | #include <linux/mutex.h> |
32b36eea | 10 | #include <linux/timer.h> |
1da177e4 LT |
11 | #include <linux/usb.h> |
12 | ||
e5e47465 | 13 | #define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */ |
1da177e4 | 14 | |
d0b4652f AS |
15 | /*-------------------------------------------------------------------------*/ |
16 | ||
17 | static int override_alt = -1; | |
18 | module_param_named(alt, override_alt, int, 0644); | |
19 | MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection"); | |
145f48c5 | 20 | static void complicated_callback(struct urb *urb); |
d0b4652f | 21 | |
1da177e4 LT |
22 | /*-------------------------------------------------------------------------*/ |
23 | ||
fabbf219 | 24 | /* FIXME make these public somewhere; usbdevfs.h? */ |
18fc4ebd DD |
25 | |
26 | /* Parameter for usbtest driver. */ | |
27 | struct usbtest_param_32 { | |
fabbf219 | 28 | /* inputs */ |
18fc4ebd DD |
29 | __u32 test_num; /* 0..(TEST_CASES-1) */ |
30 | __u32 iterations; | |
31 | __u32 length; | |
32 | __u32 vary; | |
33 | __u32 sglen; | |
1da177e4 | 34 | |
fabbf219 | 35 | /* outputs */ |
18fc4ebd DD |
36 | __s32 duration_sec; |
37 | __s32 duration_usec; | |
1da177e4 | 38 | }; |
18fc4ebd DD |
39 | |
40 | /* | |
41 | * Compat parameter to the usbtest driver. | |
42 | * This supports older user space binaries compiled with 64 bit compiler. | |
43 | */ | |
44 | struct usbtest_param_64 { | |
45 | /* inputs */ | |
46 | __u32 test_num; /* 0..(TEST_CASES-1) */ | |
47 | __u32 iterations; | |
48 | __u32 length; | |
49 | __u32 vary; | |
50 | __u32 sglen; | |
51 | ||
52 | /* outputs */ | |
53 | __s64 duration_sec; | |
54 | __s64 duration_usec; | |
55 | }; | |
56 | ||
57 | /* IOCTL interface to the driver. */ | |
58 | #define USBTEST_REQUEST_32 _IOWR('U', 100, struct usbtest_param_32) | |
59 | /* COMPAT IOCTL interface to the driver. */ | |
60 | #define USBTEST_REQUEST_64 _IOWR('U', 100, struct usbtest_param_64) | |
1da177e4 LT |
61 | |
62 | /*-------------------------------------------------------------------------*/ | |
63 | ||
64 | #define GENERIC /* let probe() bind using module params */ | |
65 | ||
66 | /* Some devices that can be used for testing will have "real" drivers. | |
67 | * Entries for those need to be enabled here by hand, after disabling | |
68 | * that "real" driver. | |
69 | */ | |
70 | //#define IBOT2 /* grab iBOT2 webcams */ | |
71 | //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */ | |
72 | ||
73 | /*-------------------------------------------------------------------------*/ | |
74 | ||
75 | struct usbtest_info { | |
76 | const char *name; | |
77 | u8 ep_in; /* bulk/intr source */ | |
78 | u8 ep_out; /* bulk/intr sink */ | |
fabbf219 MF |
79 | unsigned autoconf:1; |
80 | unsigned ctrl_out:1; | |
81 | unsigned iso:1; /* try iso in/out */ | |
457a0955 | 82 | unsigned intr:1; /* try interrupt in/out */ |
1da177e4 LT |
83 | int alt; |
84 | }; | |
85 | ||
86 | /* this is accessed only through usbfs ioctl calls. | |
87 | * one ioctl to issue a test ... one lock per device. | |
88 | * tests create other threads if they need them. | |
89 | * urbs and buffers are allocated dynamically, | |
90 | * and data generated deterministically. | |
91 | */ | |
92 | struct usbtest_dev { | |
93 | struct usb_interface *intf; | |
94 | struct usbtest_info *info; | |
95 | int in_pipe; | |
96 | int out_pipe; | |
97 | int in_iso_pipe; | |
98 | int out_iso_pipe; | |
457a0955 AV |
99 | int in_int_pipe; |
100 | int out_int_pipe; | |
1da177e4 | 101 | struct usb_endpoint_descriptor *iso_in, *iso_out; |
457a0955 | 102 | struct usb_endpoint_descriptor *int_in, *int_out; |
1cfab028 | 103 | struct mutex lock; |
1da177e4 LT |
104 | |
105 | #define TBUF_SIZE 256 | |
106 | u8 *buf; | |
107 | }; | |
108 | ||
fabbf219 | 109 | static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test) |
1da177e4 | 110 | { |
fabbf219 | 111 | return interface_to_usbdev(test->intf); |
1da177e4 LT |
112 | } |
113 | ||
114 | /* set up all urbs so they can be used with either bulk or interrupt */ | |
115 | #define INTERRUPT_RATE 1 /* msec/transfer */ | |
116 | ||
28ffd79c DB |
117 | #define ERROR(tdev, fmt, args...) \ |
118 | dev_err(&(tdev)->intf->dev , fmt , ## args) | |
b6c63937 | 119 | #define WARNING(tdev, fmt, args...) \ |
28ffd79c | 120 | dev_warn(&(tdev)->intf->dev , fmt , ## args) |
1da177e4 | 121 | |
084fb206 | 122 | #define GUARD_BYTE 0xA5 |
41d3c0b8 | 123 | #define MAX_SGLEN 128 |
084fb206 | 124 | |
1da177e4 LT |
125 | /*-------------------------------------------------------------------------*/ |
126 | ||
127 | static int | |
fabbf219 | 128 | get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) |
1da177e4 LT |
129 | { |
130 | int tmp; | |
131 | struct usb_host_interface *alt; | |
132 | struct usb_host_endpoint *in, *out; | |
133 | struct usb_host_endpoint *iso_in, *iso_out; | |
457a0955 | 134 | struct usb_host_endpoint *int_in, *int_out; |
1da177e4 LT |
135 | struct usb_device *udev; |
136 | ||
137 | for (tmp = 0; tmp < intf->num_altsetting; tmp++) { | |
138 | unsigned ep; | |
139 | ||
140 | in = out = NULL; | |
141 | iso_in = iso_out = NULL; | |
457a0955 | 142 | int_in = int_out = NULL; |
1da177e4 LT |
143 | alt = intf->altsetting + tmp; |
144 | ||
d0b4652f AS |
145 | if (override_alt >= 0 && |
146 | override_alt != alt->desc.bAlternateSetting) | |
147 | continue; | |
148 | ||
1da177e4 | 149 | /* take the first altsetting with in-bulk + out-bulk; |
70f23fd6 | 150 | * ignore other endpoints and altsettings. |
1da177e4 LT |
151 | */ |
152 | for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { | |
153 | struct usb_host_endpoint *e; | |
154 | ||
155 | e = alt->endpoint + ep; | |
9a37a503 | 156 | switch (usb_endpoint_type(&e->desc)) { |
1da177e4 LT |
157 | case USB_ENDPOINT_XFER_BULK: |
158 | break; | |
457a0955 AV |
159 | case USB_ENDPOINT_XFER_INT: |
160 | if (dev->info->intr) | |
161 | goto try_intr; | |
1da177e4 LT |
162 | case USB_ENDPOINT_XFER_ISOC: |
163 | if (dev->info->iso) | |
164 | goto try_iso; | |
fabbf219 | 165 | /* FALLTHROUGH */ |
1da177e4 LT |
166 | default: |
167 | continue; | |
168 | } | |
4d823dd2 | 169 | if (usb_endpoint_dir_in(&e->desc)) { |
1da177e4 LT |
170 | if (!in) |
171 | in = e; | |
172 | } else { | |
173 | if (!out) | |
174 | out = e; | |
175 | } | |
176 | continue; | |
457a0955 AV |
177 | try_intr: |
178 | if (usb_endpoint_dir_in(&e->desc)) { | |
179 | if (!int_in) | |
180 | int_in = e; | |
181 | } else { | |
182 | if (!int_out) | |
183 | int_out = e; | |
184 | } | |
185 | continue; | |
1da177e4 | 186 | try_iso: |
4d823dd2 | 187 | if (usb_endpoint_dir_in(&e->desc)) { |
1da177e4 LT |
188 | if (!iso_in) |
189 | iso_in = e; | |
190 | } else { | |
191 | if (!iso_out) | |
192 | iso_out = e; | |
193 | } | |
194 | } | |
457a0955 | 195 | if ((in && out) || iso_in || iso_out || int_in || int_out) |
1da177e4 LT |
196 | goto found; |
197 | } | |
198 | return -EINVAL; | |
199 | ||
200 | found: | |
fabbf219 | 201 | udev = testdev_to_usbdev(dev); |
d0b4652f | 202 | dev->info->alt = alt->desc.bAlternateSetting; |
1da177e4 | 203 | if (alt->desc.bAlternateSetting != 0) { |
fabbf219 | 204 | tmp = usb_set_interface(udev, |
1da177e4 LT |
205 | alt->desc.bInterfaceNumber, |
206 | alt->desc.bAlternateSetting); | |
207 | if (tmp < 0) | |
208 | return tmp; | |
209 | } | |
210 | ||
211 | if (in) { | |
fabbf219 | 212 | dev->in_pipe = usb_rcvbulkpipe(udev, |
1da177e4 | 213 | in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); |
fabbf219 | 214 | dev->out_pipe = usb_sndbulkpipe(udev, |
1da177e4 LT |
215 | out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); |
216 | } | |
217 | if (iso_in) { | |
218 | dev->iso_in = &iso_in->desc; | |
fabbf219 | 219 | dev->in_iso_pipe = usb_rcvisocpipe(udev, |
1da177e4 LT |
220 | iso_in->desc.bEndpointAddress |
221 | & USB_ENDPOINT_NUMBER_MASK); | |
951fd8ee ML |
222 | } |
223 | ||
224 | if (iso_out) { | |
1da177e4 | 225 | dev->iso_out = &iso_out->desc; |
fabbf219 | 226 | dev->out_iso_pipe = usb_sndisocpipe(udev, |
1da177e4 LT |
227 | iso_out->desc.bEndpointAddress |
228 | & USB_ENDPOINT_NUMBER_MASK); | |
229 | } | |
457a0955 AV |
230 | |
231 | if (int_in) { | |
232 | dev->int_in = &int_in->desc; | |
233 | dev->in_int_pipe = usb_rcvintpipe(udev, | |
234 | int_in->desc.bEndpointAddress | |
235 | & USB_ENDPOINT_NUMBER_MASK); | |
236 | } | |
237 | ||
238 | if (int_out) { | |
239 | dev->int_out = &int_out->desc; | |
240 | dev->out_int_pipe = usb_sndintpipe(udev, | |
241 | int_out->desc.bEndpointAddress | |
242 | & USB_ENDPOINT_NUMBER_MASK); | |
243 | } | |
1da177e4 LT |
244 | return 0; |
245 | } | |
246 | ||
247 | /*-------------------------------------------------------------------------*/ | |
248 | ||
249 | /* Support for testing basic non-queued I/O streams. | |
250 | * | |
251 | * These just package urbs as requests that can be easily canceled. | |
252 | * Each urb's data buffer is dynamically allocated; callers can fill | |
253 | * them with non-zero test data (or test for it) when appropriate. | |
254 | */ | |
255 | ||
fabbf219 | 256 | static void simple_callback(struct urb *urb) |
1da177e4 | 257 | { |
cdc97792 | 258 | complete(urb->context); |
1da177e4 LT |
259 | } |
260 | ||
084fb206 | 261 | static struct urb *usbtest_alloc_urb( |
1da177e4 LT |
262 | struct usb_device *udev, |
263 | int pipe, | |
084fb206 MF |
264 | unsigned long bytes, |
265 | unsigned transfer_flags, | |
457a0955 | 266 | unsigned offset, |
145f48c5 PC |
267 | u8 bInterval, |
268 | usb_complete_t complete_fn) | |
1da177e4 LT |
269 | { |
270 | struct urb *urb; | |
271 | ||
fabbf219 | 272 | urb = usb_alloc_urb(0, GFP_KERNEL); |
1da177e4 LT |
273 | if (!urb) |
274 | return urb; | |
457a0955 AV |
275 | |
276 | if (bInterval) | |
145f48c5 | 277 | usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn, |
457a0955 AV |
278 | NULL, bInterval); |
279 | else | |
145f48c5 | 280 | usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn, |
457a0955 AV |
281 | NULL); |
282 | ||
1da177e4 LT |
283 | urb->interval = (udev->speed == USB_SPEED_HIGH) |
284 | ? (INTERRUPT_RATE << 3) | |
285 | : INTERRUPT_RATE; | |
084fb206 | 286 | urb->transfer_flags = transfer_flags; |
fabbf219 | 287 | if (usb_pipein(pipe)) |
1da177e4 | 288 | urb->transfer_flags |= URB_SHORT_NOT_OK; |
084fb206 | 289 | |
26186e5f CY |
290 | if ((bytes + offset) == 0) |
291 | return urb; | |
292 | ||
084fb206 MF |
293 | if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) |
294 | urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset, | |
295 | GFP_KERNEL, &urb->transfer_dma); | |
296 | else | |
297 | urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL); | |
298 | ||
1da177e4 | 299 | if (!urb->transfer_buffer) { |
fabbf219 | 300 | usb_free_urb(urb); |
084fb206 MF |
301 | return NULL; |
302 | } | |
303 | ||
304 | /* To test unaligned transfers add an offset and fill the | |
305 | unused memory with a guard value */ | |
306 | if (offset) { | |
307 | memset(urb->transfer_buffer, GUARD_BYTE, offset); | |
308 | urb->transfer_buffer += offset; | |
309 | if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) | |
310 | urb->transfer_dma += offset; | |
311 | } | |
312 | ||
313 | /* For inbound transfers use guard byte so that test fails if | |
314 | data not correctly copied */ | |
315 | memset(urb->transfer_buffer, | |
316 | usb_pipein(urb->pipe) ? GUARD_BYTE : 0, | |
317 | bytes); | |
1da177e4 LT |
318 | return urb; |
319 | } | |
320 | ||
084fb206 MF |
321 | static struct urb *simple_alloc_urb( |
322 | struct usb_device *udev, | |
323 | int pipe, | |
457a0955 AV |
324 | unsigned long bytes, |
325 | u8 bInterval) | |
084fb206 | 326 | { |
457a0955 | 327 | return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0, |
145f48c5 PC |
328 | bInterval, simple_callback); |
329 | } | |
330 | ||
331 | static struct urb *complicated_alloc_urb( | |
332 | struct usb_device *udev, | |
333 | int pipe, | |
334 | unsigned long bytes, | |
335 | u8 bInterval) | |
336 | { | |
337 | return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0, | |
338 | bInterval, complicated_callback); | |
084fb206 MF |
339 | } |
340 | ||
fabbf219 | 341 | static unsigned pattern; |
7f4e9854 VP |
342 | static unsigned mod_pattern; |
343 | module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR); | |
344 | MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)"); | |
1da177e4 | 345 | |
b9a6e8e1 AS |
346 | static unsigned get_maxpacket(struct usb_device *udev, int pipe) |
347 | { | |
348 | struct usb_host_endpoint *ep; | |
349 | ||
350 | ep = usb_pipe_endpoint(udev, pipe); | |
351 | return le16_to_cpup(&ep->desc.wMaxPacketSize); | |
352 | } | |
353 | ||
354 | static void simple_fill_buf(struct urb *urb) | |
1da177e4 LT |
355 | { |
356 | unsigned i; | |
357 | u8 *buf = urb->transfer_buffer; | |
358 | unsigned len = urb->transfer_buffer_length; | |
b9a6e8e1 | 359 | unsigned maxpacket; |
1da177e4 LT |
360 | |
361 | switch (pattern) { | |
362 | default: | |
fabbf219 | 363 | /* FALLTHROUGH */ |
1da177e4 | 364 | case 0: |
fabbf219 | 365 | memset(buf, 0, len); |
1da177e4 LT |
366 | break; |
367 | case 1: /* mod63 */ | |
b9a6e8e1 | 368 | maxpacket = get_maxpacket(urb->dev, urb->pipe); |
1da177e4 | 369 | for (i = 0; i < len; i++) |
b9a6e8e1 | 370 | *buf++ = (u8) ((i % maxpacket) % 63); |
1da177e4 LT |
371 | break; |
372 | } | |
373 | } | |
374 | ||
304b0b57 | 375 | static inline unsigned long buffer_offset(void *buf) |
084fb206 | 376 | { |
304b0b57 | 377 | return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1); |
084fb206 MF |
378 | } |
379 | ||
380 | static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb) | |
381 | { | |
382 | u8 *buf = urb->transfer_buffer; | |
383 | u8 *guard = buf - buffer_offset(buf); | |
384 | unsigned i; | |
385 | ||
386 | for (i = 0; guard < buf; i++, guard++) { | |
387 | if (*guard != GUARD_BYTE) { | |
388 | ERROR(tdev, "guard byte[%d] %d (not %d)\n", | |
389 | i, *guard, GUARD_BYTE); | |
390 | return -EINVAL; | |
391 | } | |
392 | } | |
393 | return 0; | |
394 | } | |
395 | ||
396 | static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb) | |
1da177e4 LT |
397 | { |
398 | unsigned i; | |
399 | u8 expected; | |
400 | u8 *buf = urb->transfer_buffer; | |
401 | unsigned len = urb->actual_length; | |
b9a6e8e1 | 402 | unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe); |
1da177e4 | 403 | |
084fb206 MF |
404 | int ret = check_guard_bytes(tdev, urb); |
405 | if (ret) | |
406 | return ret; | |
407 | ||
1da177e4 LT |
408 | for (i = 0; i < len; i++, buf++) { |
409 | switch (pattern) { | |
410 | /* all-zeroes has no synchronization issues */ | |
411 | case 0: | |
412 | expected = 0; | |
413 | break; | |
414 | /* mod63 stays in sync with short-terminated transfers, | |
415 | * or otherwise when host and gadget agree on how large | |
416 | * each usb transfer request should be. resync is done | |
417 | * with set_interface or set_config. | |
418 | */ | |
419 | case 1: /* mod63 */ | |
b9a6e8e1 | 420 | expected = (i % maxpacket) % 63; |
1da177e4 LT |
421 | break; |
422 | /* always fail unsupported patterns */ | |
423 | default: | |
424 | expected = !*buf; | |
425 | break; | |
426 | } | |
427 | if (*buf == expected) | |
428 | continue; | |
28ffd79c | 429 | ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected); |
1da177e4 LT |
430 | return -EINVAL; |
431 | } | |
432 | return 0; | |
433 | } | |
434 | ||
fabbf219 | 435 | static void simple_free_urb(struct urb *urb) |
1da177e4 | 436 | { |
304b0b57 | 437 | unsigned long offset = buffer_offset(urb->transfer_buffer); |
084fb206 MF |
438 | |
439 | if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) | |
440 | usb_free_coherent( | |
441 | urb->dev, | |
442 | urb->transfer_buffer_length + offset, | |
443 | urb->transfer_buffer - offset, | |
444 | urb->transfer_dma - offset); | |
445 | else | |
446 | kfree(urb->transfer_buffer - offset); | |
fabbf219 | 447 | usb_free_urb(urb); |
1da177e4 LT |
448 | } |
449 | ||
fabbf219 | 450 | static int simple_io( |
28ffd79c | 451 | struct usbtest_dev *tdev, |
1da177e4 LT |
452 | struct urb *urb, |
453 | int iterations, | |
454 | int vary, | |
455 | int expected, | |
456 | const char *label | |
457 | ) | |
458 | { | |
459 | struct usb_device *udev = urb->dev; | |
460 | int max = urb->transfer_buffer_length; | |
461 | struct completion completion; | |
462 | int retval = 0; | |
e5e47465 | 463 | unsigned long expire; |
1da177e4 LT |
464 | |
465 | urb->context = &completion; | |
466 | while (retval == 0 && iterations-- > 0) { | |
fabbf219 | 467 | init_completion(&completion); |
7c79d094 | 468 | if (usb_pipeout(urb->pipe)) { |
fabbf219 | 469 | simple_fill_buf(urb); |
7c79d094 SAS |
470 | urb->transfer_flags |= URB_ZERO_PACKET; |
471 | } | |
fabbf219 MF |
472 | retval = usb_submit_urb(urb, GFP_KERNEL); |
473 | if (retval != 0) | |
1da177e4 LT |
474 | break; |
475 | ||
e5e47465 RQ |
476 | expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT); |
477 | if (!wait_for_completion_timeout(&completion, expire)) { | |
478 | usb_kill_urb(urb); | |
479 | retval = (urb->status == -ENOENT ? | |
480 | -ETIMEDOUT : urb->status); | |
481 | } else { | |
482 | retval = urb->status; | |
483 | } | |
484 | ||
1da177e4 | 485 | urb->dev = udev; |
fabbf219 | 486 | if (retval == 0 && usb_pipein(urb->pipe)) |
28ffd79c | 487 | retval = simple_check_buf(tdev, urb); |
1da177e4 LT |
488 | |
489 | if (vary) { | |
490 | int len = urb->transfer_buffer_length; | |
491 | ||
492 | len += vary; | |
493 | len %= max; | |
494 | if (len == 0) | |
495 | len = (vary < max) ? vary : max; | |
496 | urb->transfer_buffer_length = len; | |
497 | } | |
498 | ||
499 | /* FIXME if endpoint halted, clear halt (and log) */ | |
500 | } | |
501 | urb->transfer_buffer_length = max; | |
502 | ||
503 | if (expected != retval) | |
28ffd79c | 504 | dev_err(&udev->dev, |
1da177e4 LT |
505 | "%s failed, iterations left %d, status %d (not %d)\n", |
506 | label, iterations, retval, expected); | |
507 | return retval; | |
508 | } | |
509 | ||
510 | ||
511 | /*-------------------------------------------------------------------------*/ | |
512 | ||
513 | /* We use scatterlist primitives to test queued I/O. | |
514 | * Yes, this also tests the scatterlist primitives. | |
515 | */ | |
516 | ||
fabbf219 | 517 | static void free_sglist(struct scatterlist *sg, int nents) |
1da177e4 LT |
518 | { |
519 | unsigned i; | |
28ffd79c | 520 | |
1da177e4 LT |
521 | if (!sg) |
522 | return; | |
523 | for (i = 0; i < nents; i++) { | |
45711f1a | 524 | if (!sg_page(&sg[i])) |
1da177e4 | 525 | continue; |
fabbf219 | 526 | kfree(sg_virt(&sg[i])); |
1da177e4 | 527 | } |
fabbf219 | 528 | kfree(sg); |
1da177e4 LT |
529 | } |
530 | ||
531 | static struct scatterlist * | |
b9a6e8e1 | 532 | alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe) |
1da177e4 LT |
533 | { |
534 | struct scatterlist *sg; | |
cdc77c82 | 535 | unsigned int n_size = 0; |
1da177e4 LT |
536 | unsigned i; |
537 | unsigned size = max; | |
b9a6e8e1 AS |
538 | unsigned maxpacket = |
539 | get_maxpacket(interface_to_usbdev(dev->intf), pipe); | |
1da177e4 | 540 | |
564e6989 DC |
541 | if (max == 0) |
542 | return NULL; | |
543 | ||
f55055b4 | 544 | sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL); |
1da177e4 LT |
545 | if (!sg) |
546 | return NULL; | |
4756febb | 547 | sg_init_table(sg, nents); |
1da177e4 LT |
548 | |
549 | for (i = 0; i < nents; i++) { | |
550 | char *buf; | |
8b524901 | 551 | unsigned j; |
1da177e4 | 552 | |
fabbf219 | 553 | buf = kzalloc(size, GFP_KERNEL); |
1da177e4 | 554 | if (!buf) { |
fabbf219 | 555 | free_sglist(sg, i); |
1da177e4 LT |
556 | return NULL; |
557 | } | |
1da177e4 LT |
558 | |
559 | /* kmalloc pages are always physically contiguous! */ | |
4756febb | 560 | sg_set_buf(&sg[i], buf, size); |
1da177e4 | 561 | |
8b524901 DB |
562 | switch (pattern) { |
563 | case 0: | |
564 | /* already zeroed */ | |
565 | break; | |
566 | case 1: | |
567 | for (j = 0; j < size; j++) | |
cdc77c82 MN |
568 | *buf++ = (u8) (((j + n_size) % maxpacket) % 63); |
569 | n_size += size; | |
8b524901 DB |
570 | break; |
571 | } | |
572 | ||
1da177e4 LT |
573 | if (vary) { |
574 | size += vary; | |
575 | size %= max; | |
576 | if (size == 0) | |
577 | size = (vary < max) ? vary : max; | |
578 | } | |
579 | } | |
580 | ||
581 | return sg; | |
582 | } | |
583 | ||
32b36eea AS |
584 | static void sg_timeout(unsigned long _req) |
585 | { | |
586 | struct usb_sg_request *req = (struct usb_sg_request *) _req; | |
587 | ||
32b36eea AS |
588 | usb_sg_cancel(req); |
589 | } | |
590 | ||
fabbf219 | 591 | static int perform_sglist( |
28ffd79c | 592 | struct usbtest_dev *tdev, |
1da177e4 LT |
593 | unsigned iterations, |
594 | int pipe, | |
595 | struct usb_sg_request *req, | |
596 | struct scatterlist *sg, | |
597 | int nents | |
598 | ) | |
599 | { | |
28ffd79c | 600 | struct usb_device *udev = testdev_to_usbdev(tdev); |
1da177e4 | 601 | int retval = 0; |
32b36eea AS |
602 | struct timer_list sg_timer; |
603 | ||
604 | setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req); | |
1da177e4 LT |
605 | |
606 | while (retval == 0 && iterations-- > 0) { | |
fabbf219 | 607 | retval = usb_sg_init(req, udev, pipe, |
1da177e4 LT |
608 | (udev->speed == USB_SPEED_HIGH) |
609 | ? (INTERRUPT_RATE << 3) | |
610 | : INTERRUPT_RATE, | |
e94b1766 | 611 | sg, nents, 0, GFP_KERNEL); |
28ffd79c | 612 | |
1da177e4 LT |
613 | if (retval) |
614 | break; | |
32b36eea AS |
615 | mod_timer(&sg_timer, jiffies + |
616 | msecs_to_jiffies(SIMPLE_IO_TIMEOUT)); | |
fabbf219 | 617 | usb_sg_wait(req); |
53958751 LB |
618 | if (!del_timer_sync(&sg_timer)) |
619 | retval = -ETIMEDOUT; | |
620 | else | |
621 | retval = req->status; | |
1da177e4 | 622 | |
8b524901 DB |
623 | /* FIXME check resulting data pattern */ |
624 | ||
1da177e4 LT |
625 | /* FIXME if endpoint halted, clear halt (and log) */ |
626 | } | |
627 | ||
fabbf219 MF |
628 | /* FIXME for unlink or fault handling tests, don't report |
629 | * failure if retval is as we expected ... | |
630 | */ | |
1da177e4 | 631 | if (retval) |
28ffd79c DB |
632 | ERROR(tdev, "perform_sglist failed, " |
633 | "iterations left %d, status %d\n", | |
1da177e4 LT |
634 | iterations, retval); |
635 | return retval; | |
636 | } | |
637 | ||
638 | ||
639 | /*-------------------------------------------------------------------------*/ | |
640 | ||
641 | /* unqueued control message testing | |
642 | * | |
643 | * there's a nice set of device functional requirements in chapter 9 of the | |
644 | * usb 2.0 spec, which we can apply to ANY device, even ones that don't use | |
645 | * special test firmware. | |
646 | * | |
647 | * we know the device is configured (or suspended) by the time it's visible | |
648 | * through usbfs. we can't change that, so we won't test enumeration (which | |
649 | * worked 'well enough' to get here, this time), power management (ditto), | |
650 | * or remote wakeup (which needs human interaction). | |
651 | */ | |
652 | ||
653 | static unsigned realworld = 1; | |
fabbf219 MF |
654 | module_param(realworld, uint, 0); |
655 | MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance"); | |
1da177e4 | 656 | |
fabbf219 | 657 | static int get_altsetting(struct usbtest_dev *dev) |
1da177e4 LT |
658 | { |
659 | struct usb_interface *iface = dev->intf; | |
fabbf219 | 660 | struct usb_device *udev = interface_to_usbdev(iface); |
1da177e4 LT |
661 | int retval; |
662 | ||
fabbf219 | 663 | retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
1da177e4 | 664 | USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, |
fabbf219 | 665 | 0, iface->altsetting[0].desc.bInterfaceNumber, |
1da177e4 LT |
666 | dev->buf, 1, USB_CTRL_GET_TIMEOUT); |
667 | switch (retval) { | |
668 | case 1: | |
fabbf219 | 669 | return dev->buf[0]; |
1da177e4 LT |
670 | case 0: |
671 | retval = -ERANGE; | |
fabbf219 | 672 | /* FALLTHROUGH */ |
1da177e4 LT |
673 | default: |
674 | return retval; | |
675 | } | |
676 | } | |
677 | ||
fabbf219 | 678 | static int set_altsetting(struct usbtest_dev *dev, int alternate) |
1da177e4 LT |
679 | { |
680 | struct usb_interface *iface = dev->intf; | |
681 | struct usb_device *udev; | |
682 | ||
683 | if (alternate < 0 || alternate >= 256) | |
684 | return -EINVAL; | |
685 | ||
fabbf219 MF |
686 | udev = interface_to_usbdev(iface); |
687 | return usb_set_interface(udev, | |
688 | iface->altsetting[0].desc.bInterfaceNumber, | |
1da177e4 LT |
689 | alternate); |
690 | } | |
691 | ||
28ffd79c | 692 | static int is_good_config(struct usbtest_dev *tdev, int len) |
1da177e4 LT |
693 | { |
694 | struct usb_config_descriptor *config; | |
28ffd79c | 695 | |
f55055b4 | 696 | if (len < sizeof(*config)) |
1da177e4 | 697 | return 0; |
28ffd79c | 698 | config = (struct usb_config_descriptor *) tdev->buf; |
1da177e4 LT |
699 | |
700 | switch (config->bDescriptorType) { | |
701 | case USB_DT_CONFIG: | |
702 | case USB_DT_OTHER_SPEED_CONFIG: | |
703 | if (config->bLength != 9) { | |
28ffd79c | 704 | ERROR(tdev, "bogus config descriptor length\n"); |
1da177e4 LT |
705 | return 0; |
706 | } | |
707 | /* this bit 'must be 1' but often isn't */ | |
708 | if (!realworld && !(config->bmAttributes & 0x80)) { | |
28ffd79c | 709 | ERROR(tdev, "high bit of config attributes not set\n"); |
1da177e4 LT |
710 | return 0; |
711 | } | |
712 | if (config->bmAttributes & 0x1f) { /* reserved == 0 */ | |
28ffd79c | 713 | ERROR(tdev, "reserved config bits set\n"); |
1da177e4 LT |
714 | return 0; |
715 | } | |
716 | break; | |
717 | default: | |
718 | return 0; | |
719 | } | |
720 | ||
fabbf219 | 721 | if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ |
1da177e4 | 722 | return 1; |
fabbf219 | 723 | if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ |
1da177e4 | 724 | return 1; |
28ffd79c | 725 | ERROR(tdev, "bogus config descriptor read size\n"); |
1da177e4 LT |
726 | return 0; |
727 | } | |
728 | ||
82f92672 HR |
729 | static int is_good_ext(struct usbtest_dev *tdev, u8 *buf) |
730 | { | |
731 | struct usb_ext_cap_descriptor *ext; | |
732 | u32 attr; | |
733 | ||
734 | ext = (struct usb_ext_cap_descriptor *) buf; | |
735 | ||
736 | if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) { | |
737 | ERROR(tdev, "bogus usb 2.0 extension descriptor length\n"); | |
738 | return 0; | |
739 | } | |
740 | ||
741 | attr = le32_to_cpu(ext->bmAttributes); | |
875bc23a HR |
742 | /* bits[1:15] is used and others are reserved */ |
743 | if (attr & ~0xfffe) { /* reserved == 0 */ | |
82f92672 HR |
744 | ERROR(tdev, "reserved bits set\n"); |
745 | return 0; | |
746 | } | |
747 | ||
748 | return 1; | |
749 | } | |
750 | ||
b8fef795 HR |
751 | static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf) |
752 | { | |
753 | struct usb_ss_cap_descriptor *ss; | |
754 | ||
755 | ss = (struct usb_ss_cap_descriptor *) buf; | |
756 | ||
757 | if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) { | |
758 | ERROR(tdev, "bogus superspeed device capability descriptor length\n"); | |
759 | return 0; | |
760 | } | |
761 | ||
762 | /* | |
763 | * only bit[1] of bmAttributes is used for LTM and others are | |
764 | * reserved | |
765 | */ | |
766 | if (ss->bmAttributes & ~0x02) { /* reserved == 0 */ | |
767 | ERROR(tdev, "reserved bits set in bmAttributes\n"); | |
768 | return 0; | |
769 | } | |
770 | ||
771 | /* bits[0:3] of wSpeedSupported is used and others are reserved */ | |
772 | if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */ | |
773 | ERROR(tdev, "reserved bits set in wSpeedSupported\n"); | |
774 | return 0; | |
775 | } | |
776 | ||
777 | return 1; | |
778 | } | |
779 | ||
8e29217f HR |
780 | static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf) |
781 | { | |
782 | struct usb_ss_container_id_descriptor *con_id; | |
783 | ||
784 | con_id = (struct usb_ss_container_id_descriptor *) buf; | |
785 | ||
786 | if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) { | |
787 | ERROR(tdev, "bogus container id descriptor length\n"); | |
788 | return 0; | |
789 | } | |
790 | ||
791 | if (con_id->bReserved) { /* reserved == 0 */ | |
792 | ERROR(tdev, "reserved bits set\n"); | |
793 | return 0; | |
794 | } | |
795 | ||
796 | return 1; | |
797 | } | |
798 | ||
1da177e4 LT |
799 | /* sanity test for standard requests working with usb_control_mesg() and some |
800 | * of the utility functions which use it. | |
801 | * | |
802 | * this doesn't test how endpoint halts behave or data toggles get set, since | |
803 | * we won't do I/O to bulk/interrupt endpoints here (which is how to change | |
804 | * halt or toggle). toggle testing is impractical without support from hcds. | |
805 | * | |
806 | * this avoids failing devices linux would normally work with, by not testing | |
807 | * config/altsetting operations for devices that only support their defaults. | |
808 | * such devices rarely support those needless operations. | |
809 | * | |
810 | * NOTE that since this is a sanity test, it's not examining boundary cases | |
811 | * to see if usbcore, hcd, and device all behave right. such testing would | |
812 | * involve varied read sizes and other operation sequences. | |
813 | */ | |
fabbf219 | 814 | static int ch9_postconfig(struct usbtest_dev *dev) |
1da177e4 LT |
815 | { |
816 | struct usb_interface *iface = dev->intf; | |
fabbf219 | 817 | struct usb_device *udev = interface_to_usbdev(iface); |
1da177e4 LT |
818 | int i, alt, retval; |
819 | ||
820 | /* [9.2.3] if there's more than one altsetting, we need to be able to | |
821 | * set and get each one. mostly trusts the descriptors from usbcore. | |
822 | */ | |
823 | for (i = 0; i < iface->num_altsetting; i++) { | |
824 | ||
825 | /* 9.2.3 constrains the range here */ | |
fabbf219 | 826 | alt = iface->altsetting[i].desc.bAlternateSetting; |
1da177e4 | 827 | if (alt < 0 || alt >= iface->num_altsetting) { |
28ffd79c | 828 | dev_err(&iface->dev, |
1da177e4 LT |
829 | "invalid alt [%d].bAltSetting = %d\n", |
830 | i, alt); | |
831 | } | |
832 | ||
833 | /* [real world] get/set unimplemented if there's only one */ | |
834 | if (realworld && iface->num_altsetting == 1) | |
835 | continue; | |
836 | ||
837 | /* [9.4.10] set_interface */ | |
fabbf219 | 838 | retval = set_altsetting(dev, alt); |
1da177e4 | 839 | if (retval) { |
28ffd79c | 840 | dev_err(&iface->dev, "can't set_interface = %d, %d\n", |
1da177e4 LT |
841 | alt, retval); |
842 | return retval; | |
843 | } | |
844 | ||
845 | /* [9.4.4] get_interface always works */ | |
fabbf219 | 846 | retval = get_altsetting(dev); |
1da177e4 | 847 | if (retval != alt) { |
28ffd79c | 848 | dev_err(&iface->dev, "get alt should be %d, was %d\n", |
1da177e4 LT |
849 | alt, retval); |
850 | return (retval < 0) ? retval : -EDOM; | |
851 | } | |
852 | ||
853 | } | |
854 | ||
855 | /* [real world] get_config unimplemented if there's only one */ | |
856 | if (!realworld || udev->descriptor.bNumConfigurations != 1) { | |
857 | int expected = udev->actconfig->desc.bConfigurationValue; | |
858 | ||
859 | /* [9.4.2] get_configuration always works | |
860 | * ... although some cheap devices (like one TI Hub I've got) | |
861 | * won't return config descriptors except before set_config. | |
862 | */ | |
fabbf219 | 863 | retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
1da177e4 LT |
864 | USB_REQ_GET_CONFIGURATION, |
865 | USB_DIR_IN | USB_RECIP_DEVICE, | |
866 | 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); | |
fabbf219 | 867 | if (retval != 1 || dev->buf[0] != expected) { |
28ffd79c | 868 | dev_err(&iface->dev, "get config --> %d %d (1 %d)\n", |
ff7c79e4 | 869 | retval, dev->buf[0], expected); |
1da177e4 LT |
870 | return (retval < 0) ? retval : -EDOM; |
871 | } | |
872 | } | |
873 | ||
874 | /* there's always [9.4.3] a device descriptor [9.6.1] */ | |
fabbf219 | 875 | retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0, |
f55055b4 HR |
876 | dev->buf, sizeof(udev->descriptor)); |
877 | if (retval != sizeof(udev->descriptor)) { | |
28ffd79c | 878 | dev_err(&iface->dev, "dev descriptor --> %d\n", retval); |
1da177e4 LT |
879 | return (retval < 0) ? retval : -EDOM; |
880 | } | |
881 | ||
9d3bd768 HR |
882 | /* |
883 | * there's always [9.4.3] a bos device descriptor [9.6.2] in USB | |
884 | * 3.0 spec | |
885 | */ | |
f625099f | 886 | if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) { |
82f92672 HR |
887 | struct usb_bos_descriptor *bos = NULL; |
888 | struct usb_dev_cap_header *header = NULL; | |
889 | unsigned total, num, length; | |
890 | u8 *buf; | |
891 | ||
9d3bd768 HR |
892 | retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, |
893 | sizeof(*udev->bos->desc)); | |
894 | if (retval != sizeof(*udev->bos->desc)) { | |
895 | dev_err(&iface->dev, "bos descriptor --> %d\n", retval); | |
896 | return (retval < 0) ? retval : -EDOM; | |
897 | } | |
82f92672 HR |
898 | |
899 | bos = (struct usb_bos_descriptor *)dev->buf; | |
900 | total = le16_to_cpu(bos->wTotalLength); | |
901 | num = bos->bNumDeviceCaps; | |
902 | ||
903 | if (total > TBUF_SIZE) | |
904 | total = TBUF_SIZE; | |
905 | ||
906 | /* | |
907 | * get generic device-level capability descriptors [9.6.2] | |
908 | * in USB 3.0 spec | |
909 | */ | |
910 | retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, | |
911 | total); | |
912 | if (retval != total) { | |
913 | dev_err(&iface->dev, "bos descriptor set --> %d\n", | |
914 | retval); | |
915 | return (retval < 0) ? retval : -EDOM; | |
916 | } | |
917 | ||
918 | length = sizeof(*udev->bos->desc); | |
919 | buf = dev->buf; | |
920 | for (i = 0; i < num; i++) { | |
921 | buf += length; | |
922 | if (buf + sizeof(struct usb_dev_cap_header) > | |
923 | dev->buf + total) | |
924 | break; | |
925 | ||
926 | header = (struct usb_dev_cap_header *)buf; | |
927 | length = header->bLength; | |
928 | ||
929 | if (header->bDescriptorType != | |
930 | USB_DT_DEVICE_CAPABILITY) { | |
931 | dev_warn(&udev->dev, "not device capability descriptor, skip\n"); | |
932 | continue; | |
933 | } | |
934 | ||
935 | switch (header->bDevCapabilityType) { | |
936 | case USB_CAP_TYPE_EXT: | |
937 | if (buf + USB_DT_USB_EXT_CAP_SIZE > | |
938 | dev->buf + total || | |
939 | !is_good_ext(dev, buf)) { | |
940 | dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n"); | |
941 | return -EDOM; | |
942 | } | |
943 | break; | |
b8fef795 HR |
944 | case USB_SS_CAP_TYPE: |
945 | if (buf + USB_DT_USB_SS_CAP_SIZE > | |
946 | dev->buf + total || | |
947 | !is_good_ss_cap(dev, buf)) { | |
948 | dev_err(&iface->dev, "bogus superspeed device capability descriptor\n"); | |
949 | return -EDOM; | |
950 | } | |
951 | break; | |
8e29217f HR |
952 | case CONTAINER_ID_TYPE: |
953 | if (buf + USB_DT_USB_SS_CONTN_ID_SIZE > | |
954 | dev->buf + total || | |
955 | !is_good_con_id(dev, buf)) { | |
956 | dev_err(&iface->dev, "bogus container id descriptor\n"); | |
957 | return -EDOM; | |
958 | } | |
959 | break; | |
82f92672 HR |
960 | default: |
961 | break; | |
962 | } | |
963 | } | |
9d3bd768 HR |
964 | } |
965 | ||
1da177e4 LT |
966 | /* there's always [9.4.3] at least one config descriptor [9.6.3] */ |
967 | for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { | |
fabbf219 | 968 | retval = usb_get_descriptor(udev, USB_DT_CONFIG, i, |
1da177e4 | 969 | dev->buf, TBUF_SIZE); |
28ffd79c DB |
970 | if (!is_good_config(dev, retval)) { |
971 | dev_err(&iface->dev, | |
1da177e4 LT |
972 | "config [%d] descriptor --> %d\n", |
973 | i, retval); | |
974 | return (retval < 0) ? retval : -EDOM; | |
975 | } | |
976 | ||
fabbf219 MF |
977 | /* FIXME cross-checking udev->config[i] to make sure usbcore |
978 | * parsed it right (etc) would be good testing paranoia | |
979 | */ | |
1da177e4 LT |
980 | } |
981 | ||
982 | /* and sometimes [9.2.6.6] speed dependent descriptors */ | |
983 | if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { | |
fabbf219 | 984 | struct usb_qualifier_descriptor *d = NULL; |
1da177e4 LT |
985 | |
986 | /* device qualifier [9.6.2] */ | |
fabbf219 | 987 | retval = usb_get_descriptor(udev, |
1da177e4 | 988 | USB_DT_DEVICE_QUALIFIER, 0, dev->buf, |
fabbf219 | 989 | sizeof(struct usb_qualifier_descriptor)); |
1da177e4 LT |
990 | if (retval == -EPIPE) { |
991 | if (udev->speed == USB_SPEED_HIGH) { | |
28ffd79c | 992 | dev_err(&iface->dev, |
1da177e4 LT |
993 | "hs dev qualifier --> %d\n", |
994 | retval); | |
995 | return (retval < 0) ? retval : -EDOM; | |
996 | } | |
997 | /* usb2.0 but not high-speed capable; fine */ | |
fabbf219 | 998 | } else if (retval != sizeof(struct usb_qualifier_descriptor)) { |
28ffd79c | 999 | dev_err(&iface->dev, "dev qualifier --> %d\n", retval); |
1da177e4 LT |
1000 | return (retval < 0) ? retval : -EDOM; |
1001 | } else | |
1002 | d = (struct usb_qualifier_descriptor *) dev->buf; | |
1003 | ||
1004 | /* might not have [9.6.2] any other-speed configs [9.6.4] */ | |
1005 | if (d) { | |
1006 | unsigned max = d->bNumConfigurations; | |
1007 | for (i = 0; i < max; i++) { | |
fabbf219 | 1008 | retval = usb_get_descriptor(udev, |
1da177e4 LT |
1009 | USB_DT_OTHER_SPEED_CONFIG, i, |
1010 | dev->buf, TBUF_SIZE); | |
28ffd79c DB |
1011 | if (!is_good_config(dev, retval)) { |
1012 | dev_err(&iface->dev, | |
1da177e4 LT |
1013 | "other speed config --> %d\n", |
1014 | retval); | |
1015 | return (retval < 0) ? retval : -EDOM; | |
1016 | } | |
1017 | } | |
1018 | } | |
1019 | } | |
fabbf219 | 1020 | /* FIXME fetch strings from at least the device descriptor */ |
1da177e4 LT |
1021 | |
1022 | /* [9.4.5] get_status always works */ | |
fabbf219 | 1023 | retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf); |
15b7336e | 1024 | if (retval) { |
28ffd79c | 1025 | dev_err(&iface->dev, "get dev status --> %d\n", retval); |
15b7336e | 1026 | return retval; |
1da177e4 LT |
1027 | } |
1028 | ||
fabbf219 MF |
1029 | /* FIXME configuration.bmAttributes says if we could try to set/clear |
1030 | * the device's remote wakeup feature ... if we can, test that here | |
1031 | */ | |
1da177e4 | 1032 | |
fabbf219 MF |
1033 | retval = usb_get_status(udev, USB_RECIP_INTERFACE, |
1034 | iface->altsetting[0].desc.bInterfaceNumber, dev->buf); | |
15b7336e | 1035 | if (retval) { |
28ffd79c | 1036 | dev_err(&iface->dev, "get interface status --> %d\n", retval); |
15b7336e | 1037 | return retval; |
1da177e4 | 1038 | } |
fabbf219 | 1039 | /* FIXME get status for each endpoint in the interface */ |
28ffd79c | 1040 | |
1da177e4 LT |
1041 | return 0; |
1042 | } | |
1043 | ||
1044 | /*-------------------------------------------------------------------------*/ | |
1045 | ||
1046 | /* use ch9 requests to test whether: | |
1047 | * (a) queues work for control, keeping N subtests queued and | |
1048 | * active (auto-resubmit) for M loops through the queue. | |
1049 | * (b) protocol stalls (control-only) will autorecover. | |
1050 | * it's not like bulk/intr; no halt clearing. | |
1051 | * (c) short control reads are reported and handled. | |
1052 | * (d) queues are always processed in-order | |
1053 | */ | |
1054 | ||
1055 | struct ctrl_ctx { | |
1056 | spinlock_t lock; | |
1057 | struct usbtest_dev *dev; | |
1058 | struct completion complete; | |
1059 | unsigned count; | |
1060 | unsigned pending; | |
1061 | int status; | |
1062 | struct urb **urb; | |
18fc4ebd | 1063 | struct usbtest_param_32 *param; |
1da177e4 LT |
1064 | int last; |
1065 | }; | |
1066 | ||
c952a8ba | 1067 | #define NUM_SUBCASES 16 /* how many test subcases here? */ |
1da177e4 LT |
1068 | |
1069 | struct subcase { | |
1070 | struct usb_ctrlrequest setup; | |
1071 | int number; | |
1072 | int expected; | |
1073 | }; | |
1074 | ||
fabbf219 | 1075 | static void ctrl_complete(struct urb *urb) |
1da177e4 LT |
1076 | { |
1077 | struct ctrl_ctx *ctx = urb->context; | |
1078 | struct usb_ctrlrequest *reqp; | |
1079 | struct subcase *subcase; | |
1080 | int status = urb->status; | |
1081 | ||
1082 | reqp = (struct usb_ctrlrequest *)urb->setup_packet; | |
fabbf219 | 1083 | subcase = container_of(reqp, struct subcase, setup); |
1da177e4 | 1084 | |
fabbf219 | 1085 | spin_lock(&ctx->lock); |
1da177e4 LT |
1086 | ctx->count--; |
1087 | ctx->pending--; | |
1088 | ||
1089 | /* queue must transfer and complete in fifo order, unless | |
1090 | * usb_unlink_urb() is used to unlink something not at the | |
1091 | * physical queue head (not tested). | |
1092 | */ | |
1093 | if (subcase->number > 0) { | |
1094 | if ((subcase->number - ctx->last) != 1) { | |
28ffd79c DB |
1095 | ERROR(ctx->dev, |
1096 | "subcase %d completed out of order, last %d\n", | |
1097 | subcase->number, ctx->last); | |
1da177e4 LT |
1098 | status = -EDOM; |
1099 | ctx->last = subcase->number; | |
1100 | goto error; | |
1101 | } | |
1102 | } | |
1103 | ctx->last = subcase->number; | |
1104 | ||
1105 | /* succeed or fault in only one way? */ | |
1106 | if (status == subcase->expected) | |
1107 | status = 0; | |
1108 | ||
1109 | /* async unlink for cleanup? */ | |
1110 | else if (status != -ECONNRESET) { | |
1111 | ||
1112 | /* some faults are allowed, not required */ | |
1113 | if (subcase->expected > 0 && ( | |
59d99785 GKH |
1114 | ((status == -subcase->expected /* happened */ |
1115 | || status == 0)))) /* didn't */ | |
1da177e4 LT |
1116 | status = 0; |
1117 | /* sometimes more than one fault is allowed */ | |
1118 | else if (subcase->number == 12 && status == -EPIPE) | |
1119 | status = 0; | |
1120 | else | |
28ffd79c | 1121 | ERROR(ctx->dev, "subtest %d error, status %d\n", |
1da177e4 LT |
1122 | subcase->number, status); |
1123 | } | |
1124 | ||
1125 | /* unexpected status codes mean errors; ideally, in hardware */ | |
1126 | if (status) { | |
1127 | error: | |
1128 | if (ctx->status == 0) { | |
1129 | int i; | |
1130 | ||
1131 | ctx->status = status; | |
28ffd79c DB |
1132 | ERROR(ctx->dev, "control queue %02x.%02x, err %d, " |
1133 | "%d left, subcase %d, len %d/%d\n", | |
1da177e4 | 1134 | reqp->bRequestType, reqp->bRequest, |
28ffd79c DB |
1135 | status, ctx->count, subcase->number, |
1136 | urb->actual_length, | |
1137 | urb->transfer_buffer_length); | |
1da177e4 LT |
1138 | |
1139 | /* FIXME this "unlink everything" exit route should | |
1140 | * be a separate test case. | |
1141 | */ | |
1142 | ||
1143 | /* unlink whatever's still pending */ | |
1144 | for (i = 1; i < ctx->param->sglen; i++) { | |
fabbf219 MF |
1145 | struct urb *u = ctx->urb[ |
1146 | (i + subcase->number) | |
1147 | % ctx->param->sglen]; | |
1da177e4 LT |
1148 | |
1149 | if (u == urb || !u->dev) | |
1150 | continue; | |
caa2a122 | 1151 | spin_unlock(&ctx->lock); |
fabbf219 | 1152 | status = usb_unlink_urb(u); |
caa2a122 | 1153 | spin_lock(&ctx->lock); |
1da177e4 LT |
1154 | switch (status) { |
1155 | case -EINPROGRESS: | |
1156 | case -EBUSY: | |
1157 | case -EIDRM: | |
1158 | continue; | |
1159 | default: | |
28ffd79c DB |
1160 | ERROR(ctx->dev, "urb unlink --> %d\n", |
1161 | status); | |
1da177e4 LT |
1162 | } |
1163 | } | |
1164 | status = ctx->status; | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | /* resubmit if we need to, else mark this as done */ | |
1169 | if ((status == 0) && (ctx->pending < ctx->count)) { | |
fabbf219 MF |
1170 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1171 | if (status != 0) { | |
28ffd79c DB |
1172 | ERROR(ctx->dev, |
1173 | "can't resubmit ctrl %02x.%02x, err %d\n", | |
1da177e4 LT |
1174 | reqp->bRequestType, reqp->bRequest, status); |
1175 | urb->dev = NULL; | |
1176 | } else | |
1177 | ctx->pending++; | |
1178 | } else | |
1179 | urb->dev = NULL; | |
28ffd79c | 1180 | |
1da177e4 LT |
1181 | /* signal completion when nothing's queued */ |
1182 | if (ctx->pending == 0) | |
fabbf219 MF |
1183 | complete(&ctx->complete); |
1184 | spin_unlock(&ctx->lock); | |
1da177e4 LT |
1185 | } |
1186 | ||
1187 | static int | |
18fc4ebd | 1188 | test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param) |
1da177e4 | 1189 | { |
fabbf219 | 1190 | struct usb_device *udev = testdev_to_usbdev(dev); |
1da177e4 LT |
1191 | struct urb **urb; |
1192 | struct ctrl_ctx context; | |
1193 | int i; | |
1194 | ||
e65cdfae XW |
1195 | if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen) |
1196 | return -EOPNOTSUPP; | |
1197 | ||
fabbf219 | 1198 | spin_lock_init(&context.lock); |
1da177e4 | 1199 | context.dev = dev; |
fabbf219 | 1200 | init_completion(&context.complete); |
1da177e4 LT |
1201 | context.count = param->sglen * param->iterations; |
1202 | context.pending = 0; | |
1203 | context.status = -ENOMEM; | |
1204 | context.param = param; | |
1205 | context.last = -1; | |
1206 | ||
1207 | /* allocate and init the urbs we'll queue. | |
1208 | * as with bulk/intr sglists, sglen is the queue depth; it also | |
1209 | * controls which subtests run (more tests than sglen) or rerun. | |
1210 | */ | |
e94b1766 | 1211 | urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); |
1da177e4 LT |
1212 | if (!urb) |
1213 | return -ENOMEM; | |
1da177e4 | 1214 | for (i = 0; i < param->sglen; i++) { |
fabbf219 | 1215 | int pipe = usb_rcvctrlpipe(udev, 0); |
1da177e4 LT |
1216 | unsigned len; |
1217 | struct urb *u; | |
1218 | struct usb_ctrlrequest req; | |
1219 | struct subcase *reqp; | |
6def7553 MS |
1220 | |
1221 | /* sign of this variable means: | |
1222 | * -: tested code must return this (negative) error code | |
1223 | * +: tested code may return this (negative too) error code | |
1224 | */ | |
1da177e4 LT |
1225 | int expected = 0; |
1226 | ||
1227 | /* requests here are mostly expected to succeed on any | |
1228 | * device, but some are chosen to trigger protocol stalls | |
1229 | * or short reads. | |
1230 | */ | |
f55055b4 | 1231 | memset(&req, 0, sizeof(req)); |
1da177e4 LT |
1232 | req.bRequest = USB_REQ_GET_DESCRIPTOR; |
1233 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; | |
1234 | ||
1235 | switch (i % NUM_SUBCASES) { | |
fabbf219 MF |
1236 | case 0: /* get device descriptor */ |
1237 | req.wValue = cpu_to_le16(USB_DT_DEVICE << 8); | |
1238 | len = sizeof(struct usb_device_descriptor); | |
1da177e4 | 1239 | break; |
fabbf219 MF |
1240 | case 1: /* get first config descriptor (only) */ |
1241 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1242 | len = sizeof(struct usb_config_descriptor); | |
1da177e4 | 1243 | break; |
fabbf219 | 1244 | case 2: /* get altsetting (OFTEN STALLS) */ |
1da177e4 LT |
1245 | req.bRequest = USB_REQ_GET_INTERFACE; |
1246 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; | |
fabbf219 | 1247 | /* index = 0 means first interface */ |
1da177e4 LT |
1248 | len = 1; |
1249 | expected = EPIPE; | |
1250 | break; | |
fabbf219 | 1251 | case 3: /* get interface status */ |
1da177e4 LT |
1252 | req.bRequest = USB_REQ_GET_STATUS; |
1253 | req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; | |
fabbf219 | 1254 | /* interface 0 */ |
1da177e4 LT |
1255 | len = 2; |
1256 | break; | |
fabbf219 | 1257 | case 4: /* get device status */ |
1da177e4 LT |
1258 | req.bRequest = USB_REQ_GET_STATUS; |
1259 | req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; | |
1260 | len = 2; | |
1261 | break; | |
fabbf219 | 1262 | case 5: /* get device qualifier (MAY STALL) */ |
1da177e4 | 1263 | req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); |
fabbf219 | 1264 | len = sizeof(struct usb_qualifier_descriptor); |
1da177e4 LT |
1265 | if (udev->speed != USB_SPEED_HIGH) |
1266 | expected = EPIPE; | |
1267 | break; | |
fabbf219 MF |
1268 | case 6: /* get first config descriptor, plus interface */ |
1269 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1270 | len = sizeof(struct usb_config_descriptor); | |
1271 | len += sizeof(struct usb_interface_descriptor); | |
1da177e4 | 1272 | break; |
fabbf219 | 1273 | case 7: /* get interface descriptor (ALWAYS STALLS) */ |
1da177e4 | 1274 | req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); |
fabbf219 MF |
1275 | /* interface == 0 */ |
1276 | len = sizeof(struct usb_interface_descriptor); | |
28ffd79c | 1277 | expected = -EPIPE; |
1da177e4 | 1278 | break; |
fabbf219 MF |
1279 | /* NOTE: two consecutive stalls in the queue here. |
1280 | * that tests fault recovery a bit more aggressively. */ | |
1281 | case 8: /* clear endpoint halt (MAY STALL) */ | |
1da177e4 LT |
1282 | req.bRequest = USB_REQ_CLEAR_FEATURE; |
1283 | req.bRequestType = USB_RECIP_ENDPOINT; | |
fabbf219 MF |
1284 | /* wValue 0 == ep halt */ |
1285 | /* wIndex 0 == ep0 (shouldn't halt!) */ | |
1da177e4 | 1286 | len = 0; |
fabbf219 | 1287 | pipe = usb_sndctrlpipe(udev, 0); |
1da177e4 LT |
1288 | expected = EPIPE; |
1289 | break; | |
fabbf219 | 1290 | case 9: /* get endpoint status */ |
1da177e4 LT |
1291 | req.bRequest = USB_REQ_GET_STATUS; |
1292 | req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; | |
fabbf219 | 1293 | /* endpoint 0 */ |
1da177e4 LT |
1294 | len = 2; |
1295 | break; | |
fabbf219 MF |
1296 | case 10: /* trigger short read (EREMOTEIO) */ |
1297 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1da177e4 LT |
1298 | len = 1024; |
1299 | expected = -EREMOTEIO; | |
1300 | break; | |
fabbf219 MF |
1301 | /* NOTE: two consecutive _different_ faults in the queue. */ |
1302 | case 11: /* get endpoint descriptor (ALWAYS STALLS) */ | |
1303 | req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8); | |
1304 | /* endpoint == 0 */ | |
1305 | len = sizeof(struct usb_interface_descriptor); | |
1da177e4 LT |
1306 | expected = EPIPE; |
1307 | break; | |
fabbf219 MF |
1308 | /* NOTE: sometimes even a third fault in the queue! */ |
1309 | case 12: /* get string 0 descriptor (MAY STALL) */ | |
1310 | req.wValue = cpu_to_le16(USB_DT_STRING << 8); | |
1311 | /* string == 0, for language IDs */ | |
1312 | len = sizeof(struct usb_interface_descriptor); | |
1313 | /* may succeed when > 4 languages */ | |
1314 | expected = EREMOTEIO; /* or EPIPE, if no strings */ | |
1da177e4 | 1315 | break; |
fabbf219 MF |
1316 | case 13: /* short read, resembling case 10 */ |
1317 | req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); | |
1318 | /* last data packet "should" be DATA1, not DATA0 */ | |
6a23ccd2 PZ |
1319 | if (udev->speed == USB_SPEED_SUPER) |
1320 | len = 1024 - 512; | |
1321 | else | |
1322 | len = 1024 - udev->descriptor.bMaxPacketSize0; | |
1da177e4 LT |
1323 | expected = -EREMOTEIO; |
1324 | break; | |
fabbf219 MF |
1325 | case 14: /* short read; try to fill the last packet */ |
1326 | req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0); | |
28ffd79c | 1327 | /* device descriptor size == 18 bytes */ |
1da177e4 | 1328 | len = udev->descriptor.bMaxPacketSize0; |
67e7d64b SAS |
1329 | if (udev->speed == USB_SPEED_SUPER) |
1330 | len = 512; | |
1da177e4 | 1331 | switch (len) { |
fabbf219 MF |
1332 | case 8: |
1333 | len = 24; | |
1334 | break; | |
1335 | case 16: | |
1336 | len = 32; | |
1337 | break; | |
1da177e4 LT |
1338 | } |
1339 | expected = -EREMOTEIO; | |
1340 | break; | |
c952a8ba HR |
1341 | case 15: |
1342 | req.wValue = cpu_to_le16(USB_DT_BOS << 8); | |
1343 | if (udev->bos) | |
1344 | len = le16_to_cpu(udev->bos->desc->wTotalLength); | |
1345 | else | |
1346 | len = sizeof(struct usb_bos_descriptor); | |
8cf43285 | 1347 | if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201) |
c952a8ba HR |
1348 | expected = -EPIPE; |
1349 | break; | |
1da177e4 | 1350 | default: |
28ffd79c | 1351 | ERROR(dev, "bogus number of ctrl queue testcases!\n"); |
1da177e4 LT |
1352 | context.status = -EINVAL; |
1353 | goto cleanup; | |
1354 | } | |
fabbf219 | 1355 | req.wLength = cpu_to_le16(len); |
457a0955 | 1356 | urb[i] = u = simple_alloc_urb(udev, pipe, len, 0); |
1da177e4 LT |
1357 | if (!u) |
1358 | goto cleanup; | |
1359 | ||
f55055b4 | 1360 | reqp = kmalloc(sizeof(*reqp), GFP_KERNEL); |
1da177e4 LT |
1361 | if (!reqp) |
1362 | goto cleanup; | |
1363 | reqp->setup = req; | |
1364 | reqp->number = i % NUM_SUBCASES; | |
1365 | reqp->expected = expected; | |
1366 | u->setup_packet = (char *) &reqp->setup; | |
1367 | ||
1368 | u->context = &context; | |
1369 | u->complete = ctrl_complete; | |
1da177e4 LT |
1370 | } |
1371 | ||
1372 | /* queue the urbs */ | |
1373 | context.urb = urb; | |
fabbf219 | 1374 | spin_lock_irq(&context.lock); |
1da177e4 | 1375 | for (i = 0; i < param->sglen; i++) { |
fabbf219 | 1376 | context.status = usb_submit_urb(urb[i], GFP_ATOMIC); |
1da177e4 | 1377 | if (context.status != 0) { |
28ffd79c | 1378 | ERROR(dev, "can't submit urb[%d], status %d\n", |
1da177e4 LT |
1379 | i, context.status); |
1380 | context.count = context.pending; | |
1381 | break; | |
1382 | } | |
1383 | context.pending++; | |
1384 | } | |
fabbf219 | 1385 | spin_unlock_irq(&context.lock); |
1da177e4 LT |
1386 | |
1387 | /* FIXME set timer and time out; provide a disconnect hook */ | |
1388 | ||
1389 | /* wait for the last one to complete */ | |
1390 | if (context.pending > 0) | |
fabbf219 | 1391 | wait_for_completion(&context.complete); |
1da177e4 LT |
1392 | |
1393 | cleanup: | |
1394 | for (i = 0; i < param->sglen; i++) { | |
fabbf219 | 1395 | if (!urb[i]) |
1da177e4 | 1396 | continue; |
fabbf219 | 1397 | urb[i]->dev = udev; |
0ede76fc | 1398 | kfree(urb[i]->setup_packet); |
fabbf219 | 1399 | simple_free_urb(urb[i]); |
1da177e4 | 1400 | } |
fabbf219 | 1401 | kfree(urb); |
1da177e4 LT |
1402 | return context.status; |
1403 | } | |
1404 | #undef NUM_SUBCASES | |
1405 | ||
1406 | ||
1407 | /*-------------------------------------------------------------------------*/ | |
1408 | ||
fabbf219 | 1409 | static void unlink1_callback(struct urb *urb) |
1da177e4 LT |
1410 | { |
1411 | int status = urb->status; | |
1412 | ||
fabbf219 | 1413 | /* we "know" -EPIPE (stall) never happens */ |
1da177e4 | 1414 | if (!status) |
fabbf219 | 1415 | status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1416 | if (status) { |
1417 | urb->status = status; | |
cdc97792 | 1418 | complete(urb->context); |
1da177e4 LT |
1419 | } |
1420 | } | |
1421 | ||
fabbf219 | 1422 | static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async) |
1da177e4 LT |
1423 | { |
1424 | struct urb *urb; | |
1425 | struct completion completion; | |
1426 | int retval = 0; | |
1427 | ||
fabbf219 | 1428 | init_completion(&completion); |
457a0955 | 1429 | urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0); |
1da177e4 LT |
1430 | if (!urb) |
1431 | return -ENOMEM; | |
1da177e4 LT |
1432 | urb->context = &completion; |
1433 | urb->complete = unlink1_callback; | |
1434 | ||
e4d58f5d HR |
1435 | if (usb_pipeout(urb->pipe)) { |
1436 | simple_fill_buf(urb); | |
1437 | urb->transfer_flags |= URB_ZERO_PACKET; | |
1438 | } | |
1439 | ||
1da177e4 LT |
1440 | /* keep the endpoint busy. there are lots of hc/hcd-internal |
1441 | * states, and testing should get to all of them over time. | |
1442 | * | |
1443 | * FIXME want additional tests for when endpoint is STALLing | |
1444 | * due to errors, or is just NAKing requests. | |
1445 | */ | |
fabbf219 MF |
1446 | retval = usb_submit_urb(urb, GFP_KERNEL); |
1447 | if (retval != 0) { | |
28ffd79c | 1448 | dev_err(&dev->intf->dev, "submit fail %d\n", retval); |
1da177e4 LT |
1449 | return retval; |
1450 | } | |
1451 | ||
1452 | /* unlinking that should always work. variable delay tests more | |
1453 | * hcd states and code paths, even with little other system load. | |
1454 | */ | |
fabbf219 | 1455 | msleep(jiffies % (2 * INTERRUPT_RATE)); |
1da177e4 | 1456 | if (async) { |
3b6c023f MF |
1457 | while (!completion_done(&completion)) { |
1458 | retval = usb_unlink_urb(urb); | |
1459 | ||
a7683eb3 HR |
1460 | if (retval == 0 && usb_pipein(urb->pipe)) |
1461 | retval = simple_check_buf(dev, urb); | |
1462 | ||
3b6c023f MF |
1463 | switch (retval) { |
1464 | case -EBUSY: | |
1465 | case -EIDRM: | |
1466 | /* we can't unlink urbs while they're completing | |
1467 | * or if they've completed, and we haven't | |
1468 | * resubmitted. "normal" drivers would prevent | |
1469 | * resubmission, but since we're testing unlink | |
1470 | * paths, we can't. | |
1471 | */ | |
1472 | ERROR(dev, "unlink retry\n"); | |
1473 | continue; | |
1474 | case 0: | |
1475 | case -EINPROGRESS: | |
1476 | break; | |
1477 | ||
1478 | default: | |
1479 | dev_err(&dev->intf->dev, | |
1480 | "unlink fail %d\n", retval); | |
1481 | return retval; | |
1482 | } | |
1483 | ||
1484 | break; | |
1da177e4 LT |
1485 | } |
1486 | } else | |
fabbf219 | 1487 | usb_kill_urb(urb); |
1da177e4 | 1488 | |
fabbf219 | 1489 | wait_for_completion(&completion); |
1da177e4 | 1490 | retval = urb->status; |
fabbf219 | 1491 | simple_free_urb(urb); |
1da177e4 LT |
1492 | |
1493 | if (async) | |
1494 | return (retval == -ECONNRESET) ? 0 : retval - 1000; | |
1495 | else | |
1496 | return (retval == -ENOENT || retval == -EPERM) ? | |
1497 | 0 : retval - 2000; | |
1498 | } | |
1499 | ||
fabbf219 | 1500 | static int unlink_simple(struct usbtest_dev *dev, int pipe, int len) |
1da177e4 LT |
1501 | { |
1502 | int retval = 0; | |
1503 | ||
1504 | /* test sync and async paths */ | |
fabbf219 | 1505 | retval = unlink1(dev, pipe, len, 1); |
1da177e4 | 1506 | if (!retval) |
fabbf219 | 1507 | retval = unlink1(dev, pipe, len, 0); |
1da177e4 LT |
1508 | return retval; |
1509 | } | |
1510 | ||
1511 | /*-------------------------------------------------------------------------*/ | |
1512 | ||
869410f8 AS |
1513 | struct queued_ctx { |
1514 | struct completion complete; | |
1515 | atomic_t pending; | |
1516 | unsigned num; | |
1517 | int status; | |
1518 | struct urb **urbs; | |
1519 | }; | |
1520 | ||
1521 | static void unlink_queued_callback(struct urb *urb) | |
1522 | { | |
1523 | int status = urb->status; | |
1524 | struct queued_ctx *ctx = urb->context; | |
1525 | ||
1526 | if (ctx->status) | |
1527 | goto done; | |
1528 | if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) { | |
1529 | if (status == -ECONNRESET) | |
1530 | goto done; | |
1531 | /* What error should we report if the URB completed normally? */ | |
1532 | } | |
1533 | if (status != 0) | |
1534 | ctx->status = status; | |
1535 | ||
1536 | done: | |
1537 | if (atomic_dec_and_test(&ctx->pending)) | |
1538 | complete(&ctx->complete); | |
1539 | } | |
1540 | ||
1541 | static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num, | |
1542 | unsigned size) | |
1543 | { | |
1544 | struct queued_ctx ctx; | |
1545 | struct usb_device *udev = testdev_to_usbdev(dev); | |
1546 | void *buf; | |
1547 | dma_addr_t buf_dma; | |
1548 | int i; | |
1549 | int retval = -ENOMEM; | |
1550 | ||
1551 | init_completion(&ctx.complete); | |
1552 | atomic_set(&ctx.pending, 1); /* One more than the actual value */ | |
1553 | ctx.num = num; | |
1554 | ctx.status = 0; | |
1555 | ||
1556 | buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma); | |
1557 | if (!buf) | |
1558 | return retval; | |
1559 | memset(buf, 0, size); | |
1560 | ||
1561 | /* Allocate and init the urbs we'll queue */ | |
1562 | ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL); | |
1563 | if (!ctx.urbs) | |
1564 | goto free_buf; | |
1565 | for (i = 0; i < num; i++) { | |
1566 | ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
1567 | if (!ctx.urbs[i]) | |
1568 | goto free_urbs; | |
1569 | usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size, | |
1570 | unlink_queued_callback, &ctx); | |
1571 | ctx.urbs[i]->transfer_dma = buf_dma; | |
1572 | ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
e4d58f5d HR |
1573 | |
1574 | if (usb_pipeout(ctx.urbs[i]->pipe)) { | |
1575 | simple_fill_buf(ctx.urbs[i]); | |
1576 | ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET; | |
1577 | } | |
869410f8 AS |
1578 | } |
1579 | ||
1580 | /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */ | |
1581 | for (i = 0; i < num; i++) { | |
1582 | atomic_inc(&ctx.pending); | |
1583 | retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL); | |
1584 | if (retval != 0) { | |
1585 | dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n", | |
1586 | i, retval); | |
1587 | atomic_dec(&ctx.pending); | |
1588 | ctx.status = retval; | |
1589 | break; | |
1590 | } | |
1591 | } | |
1592 | if (i == num) { | |
1593 | usb_unlink_urb(ctx.urbs[num - 4]); | |
1594 | usb_unlink_urb(ctx.urbs[num - 2]); | |
1595 | } else { | |
1596 | while (--i >= 0) | |
1597 | usb_unlink_urb(ctx.urbs[i]); | |
1598 | } | |
1599 | ||
1600 | if (atomic_dec_and_test(&ctx.pending)) /* The extra count */ | |
1601 | complete(&ctx.complete); | |
1602 | wait_for_completion(&ctx.complete); | |
1603 | retval = ctx.status; | |
1604 | ||
1605 | free_urbs: | |
1606 | for (i = 0; i < num; i++) | |
1607 | usb_free_urb(ctx.urbs[i]); | |
1608 | kfree(ctx.urbs); | |
1609 | free_buf: | |
1610 | usb_free_coherent(udev, size, buf, buf_dma); | |
1611 | return retval; | |
1612 | } | |
1613 | ||
1614 | /*-------------------------------------------------------------------------*/ | |
1615 | ||
28ffd79c | 1616 | static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) |
1da177e4 LT |
1617 | { |
1618 | int retval; | |
1619 | u16 status; | |
1620 | ||
1621 | /* shouldn't look or act halted */ | |
fabbf219 | 1622 | retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status); |
1da177e4 | 1623 | if (retval < 0) { |
28ffd79c DB |
1624 | ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n", |
1625 | ep, retval); | |
1da177e4 LT |
1626 | return retval; |
1627 | } | |
1628 | if (status != 0) { | |
28ffd79c | 1629 | ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status); |
1da177e4 LT |
1630 | return -EINVAL; |
1631 | } | |
28ffd79c | 1632 | retval = simple_io(tdev, urb, 1, 0, 0, __func__); |
1da177e4 LT |
1633 | if (retval != 0) |
1634 | return -EINVAL; | |
1635 | return 0; | |
1636 | } | |
1637 | ||
28ffd79c | 1638 | static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) |
1da177e4 LT |
1639 | { |
1640 | int retval; | |
1641 | u16 status; | |
1642 | ||
1643 | /* should look and act halted */ | |
fabbf219 | 1644 | retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status); |
1da177e4 | 1645 | if (retval < 0) { |
28ffd79c DB |
1646 | ERROR(tdev, "ep %02x couldn't get halt status, %d\n", |
1647 | ep, retval); | |
1da177e4 LT |
1648 | return retval; |
1649 | } | |
1650 | if (status != 1) { | |
28ffd79c | 1651 | ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); |
1da177e4 LT |
1652 | return -EINVAL; |
1653 | } | |
28ffd79c | 1654 | retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__); |
1da177e4 LT |
1655 | if (retval != -EPIPE) |
1656 | return -EINVAL; | |
28ffd79c | 1657 | retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted"); |
1da177e4 LT |
1658 | if (retval != -EPIPE) |
1659 | return -EINVAL; | |
1660 | return 0; | |
1661 | } | |
1662 | ||
28ffd79c | 1663 | static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) |
1da177e4 LT |
1664 | { |
1665 | int retval; | |
1666 | ||
1667 | /* shouldn't look or act halted now */ | |
28ffd79c | 1668 | retval = verify_not_halted(tdev, ep, urb); |
1da177e4 LT |
1669 | if (retval < 0) |
1670 | return retval; | |
1671 | ||
1672 | /* set halt (protocol test only), verify it worked */ | |
fabbf219 | 1673 | retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0), |
1da177e4 LT |
1674 | USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, |
1675 | USB_ENDPOINT_HALT, ep, | |
1676 | NULL, 0, USB_CTRL_SET_TIMEOUT); | |
1677 | if (retval < 0) { | |
28ffd79c | 1678 | ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval); |
1da177e4 LT |
1679 | return retval; |
1680 | } | |
28ffd79c | 1681 | retval = verify_halted(tdev, ep, urb); |
824d752b RQ |
1682 | if (retval < 0) { |
1683 | int ret; | |
1684 | ||
1685 | /* clear halt anyways, else further tests will fail */ | |
1686 | ret = usb_clear_halt(urb->dev, urb->pipe); | |
1687 | if (ret) | |
1688 | ERROR(tdev, "ep %02x couldn't clear halt, %d\n", | |
1689 | ep, ret); | |
1690 | ||
1da177e4 | 1691 | return retval; |
824d752b | 1692 | } |
1da177e4 LT |
1693 | |
1694 | /* clear halt (tests API + protocol), verify it worked */ | |
fabbf219 | 1695 | retval = usb_clear_halt(urb->dev, urb->pipe); |
1da177e4 | 1696 | if (retval < 0) { |
28ffd79c | 1697 | ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval); |
1da177e4 LT |
1698 | return retval; |
1699 | } | |
28ffd79c | 1700 | retval = verify_not_halted(tdev, ep, urb); |
1da177e4 LT |
1701 | if (retval < 0) |
1702 | return retval; | |
1703 | ||
1704 | /* NOTE: could also verify SET_INTERFACE clear halts ... */ | |
1705 | ||
1706 | return 0; | |
1707 | } | |
1708 | ||
fabbf219 | 1709 | static int halt_simple(struct usbtest_dev *dev) |
1da177e4 | 1710 | { |
6a23ccd2 PZ |
1711 | int ep; |
1712 | int retval = 0; | |
1713 | struct urb *urb; | |
1714 | struct usb_device *udev = testdev_to_usbdev(dev); | |
1da177e4 | 1715 | |
6a23ccd2 | 1716 | if (udev->speed == USB_SPEED_SUPER) |
457a0955 | 1717 | urb = simple_alloc_urb(udev, 0, 1024, 0); |
6a23ccd2 | 1718 | else |
457a0955 | 1719 | urb = simple_alloc_urb(udev, 0, 512, 0); |
1da177e4 LT |
1720 | if (urb == NULL) |
1721 | return -ENOMEM; | |
1722 | ||
1723 | if (dev->in_pipe) { | |
fabbf219 | 1724 | ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN; |
1da177e4 | 1725 | urb->pipe = dev->in_pipe; |
28ffd79c | 1726 | retval = test_halt(dev, ep, urb); |
1da177e4 LT |
1727 | if (retval < 0) |
1728 | goto done; | |
1729 | } | |
1730 | ||
1731 | if (dev->out_pipe) { | |
fabbf219 | 1732 | ep = usb_pipeendpoint(dev->out_pipe); |
1da177e4 | 1733 | urb->pipe = dev->out_pipe; |
28ffd79c | 1734 | retval = test_halt(dev, ep, urb); |
1da177e4 LT |
1735 | } |
1736 | done: | |
fabbf219 | 1737 | simple_free_urb(urb); |
1da177e4 LT |
1738 | return retval; |
1739 | } | |
1740 | ||
1741 | /*-------------------------------------------------------------------------*/ | |
1742 | ||
1743 | /* Control OUT tests use the vendor control requests from Intel's | |
1744 | * USB 2.0 compliance test device: write a buffer, read it back. | |
1745 | * | |
1746 | * Intel's spec only _requires_ that it work for one packet, which | |
1747 | * is pretty weak. Some HCDs place limits here; most devices will | |
1748 | * need to be able to handle more than one OUT data packet. We'll | |
1749 | * try whatever we're told to try. | |
1750 | */ | |
fabbf219 | 1751 | static int ctrl_out(struct usbtest_dev *dev, |
084fb206 | 1752 | unsigned count, unsigned length, unsigned vary, unsigned offset) |
1da177e4 | 1753 | { |
f54fa84d OF |
1754 | unsigned i, j, len; |
1755 | int retval; | |
1da177e4 LT |
1756 | u8 *buf; |
1757 | char *what = "?"; | |
1758 | struct usb_device *udev; | |
f54fa84d | 1759 | |
ff7c79e4 | 1760 | if (length < 1 || length > 0xffff || vary >= length) |
1da177e4 LT |
1761 | return -EINVAL; |
1762 | ||
084fb206 | 1763 | buf = kmalloc(length + offset, GFP_KERNEL); |
1da177e4 LT |
1764 | if (!buf) |
1765 | return -ENOMEM; | |
1766 | ||
084fb206 | 1767 | buf += offset; |
fabbf219 | 1768 | udev = testdev_to_usbdev(dev); |
1da177e4 LT |
1769 | len = length; |
1770 | retval = 0; | |
1771 | ||
1772 | /* NOTE: hardware might well act differently if we pushed it | |
1773 | * with lots back-to-back queued requests. | |
1774 | */ | |
1775 | for (i = 0; i < count; i++) { | |
1776 | /* write patterned data */ | |
1777 | for (j = 0; j < len; j++) | |
169900f9 | 1778 | buf[j] = (u8)(i + j); |
fabbf219 | 1779 | retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), |
1da177e4 LT |
1780 | 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, |
1781 | 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); | |
1782 | if (retval != len) { | |
1783 | what = "write"; | |
ff7c79e4 | 1784 | if (retval >= 0) { |
28ffd79c | 1785 | ERROR(dev, "ctrl_out, wlen %d (expected %d)\n", |
ff7c79e4 DB |
1786 | retval, len); |
1787 | retval = -EBADMSG; | |
1788 | } | |
1da177e4 LT |
1789 | break; |
1790 | } | |
1791 | ||
1792 | /* read it back -- assuming nothing intervened!! */ | |
fabbf219 | 1793 | retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), |
1da177e4 LT |
1794 | 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, |
1795 | 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); | |
1796 | if (retval != len) { | |
1797 | what = "read"; | |
ff7c79e4 | 1798 | if (retval >= 0) { |
28ffd79c | 1799 | ERROR(dev, "ctrl_out, rlen %d (expected %d)\n", |
ff7c79e4 DB |
1800 | retval, len); |
1801 | retval = -EBADMSG; | |
1802 | } | |
1da177e4 LT |
1803 | break; |
1804 | } | |
1805 | ||
1806 | /* fail if we can't verify */ | |
1807 | for (j = 0; j < len; j++) { | |
169900f9 | 1808 | if (buf[j] != (u8)(i + j)) { |
28ffd79c | 1809 | ERROR(dev, "ctrl_out, byte %d is %d not %d\n", |
169900f9 | 1810 | j, buf[j], (u8)(i + j)); |
1da177e4 LT |
1811 | retval = -EBADMSG; |
1812 | break; | |
1813 | } | |
1814 | } | |
1815 | if (retval < 0) { | |
1816 | what = "verify"; | |
1817 | break; | |
1818 | } | |
1819 | ||
1820 | len += vary; | |
ff7c79e4 DB |
1821 | |
1822 | /* [real world] the "zero bytes IN" case isn't really used. | |
dc0d5c1e | 1823 | * hardware can easily trip up in this weird case, since its |
ff7c79e4 DB |
1824 | * status stage is IN, not OUT like other ep0in transfers. |
1825 | */ | |
1da177e4 | 1826 | if (len > length) |
ff7c79e4 | 1827 | len = realworld ? 1 : 0; |
1da177e4 LT |
1828 | } |
1829 | ||
1830 | if (retval < 0) | |
fabbf219 | 1831 | ERROR(dev, "ctrl_out %s failed, code %d, count %d\n", |
1da177e4 LT |
1832 | what, retval, i); |
1833 | ||
084fb206 | 1834 | kfree(buf - offset); |
1da177e4 LT |
1835 | return retval; |
1836 | } | |
1837 | ||
1838 | /*-------------------------------------------------------------------------*/ | |
1839 | ||
145f48c5 | 1840 | /* ISO/BULK tests ... mimics common usage |
1da177e4 LT |
1841 | * - buffer length is split into N packets (mostly maxpacket sized) |
1842 | * - multi-buffers according to sglen | |
1843 | */ | |
1844 | ||
145f48c5 | 1845 | struct transfer_context { |
1da177e4 LT |
1846 | unsigned count; |
1847 | unsigned pending; | |
1848 | spinlock_t lock; | |
1849 | struct completion done; | |
9da2150f | 1850 | int submit_error; |
1da177e4 | 1851 | unsigned long errors; |
9da2150f | 1852 | unsigned long packet_count; |
1da177e4 | 1853 | struct usbtest_dev *dev; |
145f48c5 | 1854 | bool is_iso; |
1da177e4 LT |
1855 | }; |
1856 | ||
145f48c5 | 1857 | static void complicated_callback(struct urb *urb) |
1da177e4 | 1858 | { |
145f48c5 | 1859 | struct transfer_context *ctx = urb->context; |
1da177e4 LT |
1860 | |
1861 | spin_lock(&ctx->lock); | |
1862 | ctx->count--; | |
1863 | ||
9da2150f | 1864 | ctx->packet_count += urb->number_of_packets; |
1da177e4 LT |
1865 | if (urb->error_count > 0) |
1866 | ctx->errors += urb->error_count; | |
9da2150f | 1867 | else if (urb->status != 0) |
145f48c5 | 1868 | ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1); |
40aed524 MF |
1869 | else if (urb->actual_length != urb->transfer_buffer_length) |
1870 | ctx->errors++; | |
084fb206 MF |
1871 | else if (check_guard_bytes(ctx->dev, urb) != 0) |
1872 | ctx->errors++; | |
1da177e4 | 1873 | |
9da2150f AS |
1874 | if (urb->status == 0 && ctx->count > (ctx->pending - 1) |
1875 | && !ctx->submit_error) { | |
fabbf219 | 1876 | int status = usb_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
1877 | switch (status) { |
1878 | case 0: | |
1879 | goto done; | |
1880 | default: | |
28ffd79c | 1881 | dev_err(&ctx->dev->intf->dev, |
c7c78067 | 1882 | "resubmit err %d\n", |
1da177e4 LT |
1883 | status); |
1884 | /* FALLTHROUGH */ | |
1885 | case -ENODEV: /* disconnected */ | |
9da2150f AS |
1886 | case -ESHUTDOWN: /* endpoint disabled */ |
1887 | ctx->submit_error = 1; | |
1da177e4 LT |
1888 | break; |
1889 | } | |
1890 | } | |
1da177e4 LT |
1891 | |
1892 | ctx->pending--; | |
1893 | if (ctx->pending == 0) { | |
1894 | if (ctx->errors) | |
28ffd79c | 1895 | dev_err(&ctx->dev->intf->dev, |
c7c78067 | 1896 | "during the test, %lu errors out of %lu\n", |
9da2150f | 1897 | ctx->errors, ctx->packet_count); |
fabbf219 | 1898 | complete(&ctx->done); |
1da177e4 LT |
1899 | } |
1900 | done: | |
1901 | spin_unlock(&ctx->lock); | |
1902 | } | |
1903 | ||
fabbf219 | 1904 | static struct urb *iso_alloc_urb( |
1da177e4 LT |
1905 | struct usb_device *udev, |
1906 | int pipe, | |
1907 | struct usb_endpoint_descriptor *desc, | |
084fb206 MF |
1908 | long bytes, |
1909 | unsigned offset | |
1da177e4 LT |
1910 | ) |
1911 | { | |
1912 | struct urb *urb; | |
1913 | unsigned i, maxp, packets; | |
1914 | ||
1915 | if (bytes < 0 || !desc) | |
1916 | return NULL; | |
29cc8897 KM |
1917 | maxp = 0x7ff & usb_endpoint_maxp(desc); |
1918 | maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)); | |
dfa5ec79 | 1919 | packets = DIV_ROUND_UP(bytes, maxp); |
1da177e4 | 1920 | |
fabbf219 | 1921 | urb = usb_alloc_urb(packets, GFP_KERNEL); |
1da177e4 LT |
1922 | if (!urb) |
1923 | return urb; | |
1924 | urb->dev = udev; | |
1925 | urb->pipe = pipe; | |
1926 | ||
1927 | urb->number_of_packets = packets; | |
1928 | urb->transfer_buffer_length = bytes; | |
084fb206 MF |
1929 | urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset, |
1930 | GFP_KERNEL, | |
1931 | &urb->transfer_dma); | |
1da177e4 | 1932 | if (!urb->transfer_buffer) { |
fabbf219 | 1933 | usb_free_urb(urb); |
1da177e4 LT |
1934 | return NULL; |
1935 | } | |
084fb206 MF |
1936 | if (offset) { |
1937 | memset(urb->transfer_buffer, GUARD_BYTE, offset); | |
1938 | urb->transfer_buffer += offset; | |
1939 | urb->transfer_dma += offset; | |
1940 | } | |
1941 | /* For inbound transfers use guard byte so that test fails if | |
1942 | data not correctly copied */ | |
1943 | memset(urb->transfer_buffer, | |
1944 | usb_pipein(urb->pipe) ? GUARD_BYTE : 0, | |
1945 | bytes); | |
1946 | ||
1da177e4 LT |
1947 | for (i = 0; i < packets; i++) { |
1948 | /* here, only the last packet will be short */ | |
fabbf219 | 1949 | urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp); |
1da177e4 LT |
1950 | bytes -= urb->iso_frame_desc[i].length; |
1951 | ||
1952 | urb->iso_frame_desc[i].offset = maxp * i; | |
1953 | } | |
1954 | ||
145f48c5 | 1955 | urb->complete = complicated_callback; |
fabbf219 | 1956 | /* urb->context = SET BY CALLER */ |
1da177e4 LT |
1957 | urb->interval = 1 << (desc->bInterval - 1); |
1958 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; | |
1959 | return urb; | |
1960 | } | |
1961 | ||
1962 | static int | |
18fc4ebd | 1963 | test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param, |
084fb206 | 1964 | int pipe, struct usb_endpoint_descriptor *desc, unsigned offset) |
1da177e4 | 1965 | { |
145f48c5 | 1966 | struct transfer_context context; |
1da177e4 LT |
1967 | struct usb_device *udev; |
1968 | unsigned i; | |
1969 | unsigned long packets = 0; | |
9da2150f | 1970 | int status = 0; |
41d3c0b8 | 1971 | struct urb *urbs[param->sglen]; |
1da177e4 | 1972 | |
f55055b4 | 1973 | memset(&context, 0, sizeof(context)); |
1da177e4 | 1974 | context.count = param->iterations * param->sglen; |
1da177e4 | 1975 | context.dev = dev; |
145f48c5 | 1976 | context.is_iso = !!desc; |
fabbf219 MF |
1977 | init_completion(&context.done); |
1978 | spin_lock_init(&context.lock); | |
1da177e4 | 1979 | |
fabbf219 | 1980 | udev = testdev_to_usbdev(dev); |
1da177e4 LT |
1981 | |
1982 | for (i = 0; i < param->sglen; i++) { | |
145f48c5 PC |
1983 | if (context.is_iso) |
1984 | urbs[i] = iso_alloc_urb(udev, pipe, desc, | |
084fb206 | 1985 | param->length, offset); |
145f48c5 PC |
1986 | else |
1987 | urbs[i] = complicated_alloc_urb(udev, pipe, | |
1988 | param->length, 0); | |
1989 | ||
fabbf219 | 1990 | if (!urbs[i]) { |
1da177e4 LT |
1991 | status = -ENOMEM; |
1992 | goto fail; | |
1993 | } | |
1994 | packets += urbs[i]->number_of_packets; | |
fabbf219 | 1995 | urbs[i]->context = &context; |
1da177e4 LT |
1996 | } |
1997 | packets *= param->iterations; | |
145f48c5 PC |
1998 | |
1999 | if (context.is_iso) { | |
2000 | dev_info(&dev->intf->dev, | |
2001 | "iso period %d %sframes, wMaxPacket %d, transactions: %d\n", | |
2002 | 1 << (desc->bInterval - 1), | |
2003 | (udev->speed == USB_SPEED_HIGH) ? "micro" : "", | |
2004 | usb_endpoint_maxp(desc) & 0x7ff, | |
2005 | 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11))); | |
2006 | ||
2007 | dev_info(&dev->intf->dev, | |
2008 | "total %lu msec (%lu packets)\n", | |
2009 | (packets * (1 << (desc->bInterval - 1))) | |
2010 | / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), | |
2011 | packets); | |
2012 | } | |
1da177e4 | 2013 | |
fabbf219 | 2014 | spin_lock_irq(&context.lock); |
1da177e4 | 2015 | for (i = 0; i < param->sglen; i++) { |
9da2150f | 2016 | ++context.pending; |
fabbf219 | 2017 | status = usb_submit_urb(urbs[i], GFP_ATOMIC); |
1da177e4 | 2018 | if (status < 0) { |
fabbf219 | 2019 | ERROR(dev, "submit iso[%d], error %d\n", i, status); |
1da177e4 | 2020 | if (i == 0) { |
fabbf219 | 2021 | spin_unlock_irq(&context.lock); |
1da177e4 LT |
2022 | goto fail; |
2023 | } | |
2024 | ||
fabbf219 | 2025 | simple_free_urb(urbs[i]); |
e10e1bec | 2026 | urbs[i] = NULL; |
1da177e4 | 2027 | context.pending--; |
9da2150f AS |
2028 | context.submit_error = 1; |
2029 | break; | |
1da177e4 LT |
2030 | } |
2031 | } | |
fabbf219 | 2032 | spin_unlock_irq(&context.lock); |
1da177e4 | 2033 | |
fabbf219 | 2034 | wait_for_completion(&context.done); |
9da2150f | 2035 | |
e10e1bec ML |
2036 | for (i = 0; i < param->sglen; i++) { |
2037 | if (urbs[i]) | |
2038 | simple_free_urb(urbs[i]); | |
2039 | } | |
9da2150f AS |
2040 | /* |
2041 | * Isochronous transfers are expected to fail sometimes. As an | |
2042 | * arbitrary limit, we will report an error if any submissions | |
2043 | * fail or if the transfer failure rate is > 10%. | |
2044 | */ | |
2045 | if (status != 0) | |
2046 | ; | |
2047 | else if (context.submit_error) | |
2048 | status = -EACCES; | |
145f48c5 PC |
2049 | else if (context.errors > |
2050 | (context.is_iso ? context.packet_count / 10 : 0)) | |
9da2150f AS |
2051 | status = -EIO; |
2052 | return status; | |
1da177e4 LT |
2053 | |
2054 | fail: | |
2055 | for (i = 0; i < param->sglen; i++) { | |
fabbf219 MF |
2056 | if (urbs[i]) |
2057 | simple_free_urb(urbs[i]); | |
1da177e4 LT |
2058 | } |
2059 | return status; | |
2060 | } | |
2061 | ||
084fb206 MF |
2062 | static int test_unaligned_bulk( |
2063 | struct usbtest_dev *tdev, | |
2064 | int pipe, | |
2065 | unsigned length, | |
2066 | int iterations, | |
2067 | unsigned transfer_flags, | |
2068 | const char *label) | |
2069 | { | |
2070 | int retval; | |
145f48c5 PC |
2071 | struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev), |
2072 | pipe, length, transfer_flags, 1, 0, simple_callback); | |
084fb206 MF |
2073 | |
2074 | if (!urb) | |
2075 | return -ENOMEM; | |
2076 | ||
2077 | retval = simple_io(tdev, urb, iterations, 0, 0, label); | |
2078 | simple_free_urb(urb); | |
2079 | return retval; | |
2080 | } | |
2081 | ||
18fc4ebd | 2082 | /* Run tests. */ |
1da177e4 | 2083 | static int |
18fc4ebd | 2084 | usbtest_do_ioctl(struct usb_interface *intf, struct usbtest_param_32 *param) |
1da177e4 | 2085 | { |
fabbf219 MF |
2086 | struct usbtest_dev *dev = usb_get_intfdata(intf); |
2087 | struct usb_device *udev = testdev_to_usbdev(dev); | |
1da177e4 LT |
2088 | struct urb *urb; |
2089 | struct scatterlist *sg; | |
2090 | struct usb_sg_request req; | |
1da177e4 | 2091 | unsigned i; |
18fc4ebd | 2092 | int retval = -EOPNOTSUPP; |
1da177e4 | 2093 | |
8aafdf6a | 2094 | if (param->iterations <= 0) |
1da177e4 | 2095 | return -EINVAL; |
1da177e4 LT |
2096 | /* |
2097 | * Just a bunch of test cases that every HCD is expected to handle. | |
2098 | * | |
2099 | * Some may need specific firmware, though it'd be good to have | |
2100 | * one firmware image to handle all the test cases. | |
2101 | * | |
2102 | * FIXME add more tests! cancel requests, verify the data, control | |
2103 | * queueing, concurrent read+write threads, and so on. | |
2104 | */ | |
1da177e4 LT |
2105 | switch (param->test_num) { |
2106 | ||
2107 | case 0: | |
28ffd79c | 2108 | dev_info(&intf->dev, "TEST 0: NOP\n"); |
1da177e4 LT |
2109 | retval = 0; |
2110 | break; | |
2111 | ||
2112 | /* Simple non-queued bulk I/O tests */ | |
2113 | case 1: | |
2114 | if (dev->out_pipe == 0) | |
2115 | break; | |
28ffd79c | 2116 | dev_info(&intf->dev, |
1da177e4 LT |
2117 | "TEST 1: write %d bytes %u times\n", |
2118 | param->length, param->iterations); | |
457a0955 | 2119 | urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); |
1da177e4 LT |
2120 | if (!urb) { |
2121 | retval = -ENOMEM; | |
2122 | break; | |
2123 | } | |
fabbf219 | 2124 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2125 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test1"); |
fabbf219 | 2126 | simple_free_urb(urb); |
1da177e4 LT |
2127 | break; |
2128 | case 2: | |
2129 | if (dev->in_pipe == 0) | |
2130 | break; | |
28ffd79c | 2131 | dev_info(&intf->dev, |
1da177e4 LT |
2132 | "TEST 2: read %d bytes %u times\n", |
2133 | param->length, param->iterations); | |
457a0955 | 2134 | urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); |
1da177e4 LT |
2135 | if (!urb) { |
2136 | retval = -ENOMEM; | |
2137 | break; | |
2138 | } | |
fabbf219 | 2139 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2140 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test2"); |
fabbf219 | 2141 | simple_free_urb(urb); |
1da177e4 LT |
2142 | break; |
2143 | case 3: | |
2144 | if (dev->out_pipe == 0 || param->vary == 0) | |
2145 | break; | |
28ffd79c | 2146 | dev_info(&intf->dev, |
1da177e4 LT |
2147 | "TEST 3: write/%d 0..%d bytes %u times\n", |
2148 | param->vary, param->length, param->iterations); | |
457a0955 | 2149 | urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); |
1da177e4 LT |
2150 | if (!urb) { |
2151 | retval = -ENOMEM; | |
2152 | break; | |
2153 | } | |
fabbf219 | 2154 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2155 | retval = simple_io(dev, urb, param->iterations, param->vary, |
1da177e4 | 2156 | 0, "test3"); |
fabbf219 | 2157 | simple_free_urb(urb); |
1da177e4 LT |
2158 | break; |
2159 | case 4: | |
2160 | if (dev->in_pipe == 0 || param->vary == 0) | |
2161 | break; | |
28ffd79c | 2162 | dev_info(&intf->dev, |
1da177e4 LT |
2163 | "TEST 4: read/%d 0..%d bytes %u times\n", |
2164 | param->vary, param->length, param->iterations); | |
457a0955 | 2165 | urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); |
1da177e4 LT |
2166 | if (!urb) { |
2167 | retval = -ENOMEM; | |
2168 | break; | |
2169 | } | |
fabbf219 | 2170 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2171 | retval = simple_io(dev, urb, param->iterations, param->vary, |
1da177e4 | 2172 | 0, "test4"); |
fabbf219 | 2173 | simple_free_urb(urb); |
1da177e4 LT |
2174 | break; |
2175 | ||
2176 | /* Queued bulk I/O tests */ | |
2177 | case 5: | |
2178 | if (dev->out_pipe == 0 || param->sglen == 0) | |
2179 | break; | |
28ffd79c | 2180 | dev_info(&intf->dev, |
1da177e4 LT |
2181 | "TEST 5: write %d sglists %d entries of %d bytes\n", |
2182 | param->iterations, | |
2183 | param->sglen, param->length); | |
b9a6e8e1 AS |
2184 | sg = alloc_sglist(param->sglen, param->length, |
2185 | 0, dev, dev->out_pipe); | |
1da177e4 LT |
2186 | if (!sg) { |
2187 | retval = -ENOMEM; | |
2188 | break; | |
2189 | } | |
fabbf219 | 2190 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2191 | retval = perform_sglist(dev, param->iterations, dev->out_pipe, |
1da177e4 | 2192 | &req, sg, param->sglen); |
fabbf219 | 2193 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2194 | break; |
2195 | ||
2196 | case 6: | |
2197 | if (dev->in_pipe == 0 || param->sglen == 0) | |
2198 | break; | |
28ffd79c | 2199 | dev_info(&intf->dev, |
1da177e4 LT |
2200 | "TEST 6: read %d sglists %d entries of %d bytes\n", |
2201 | param->iterations, | |
2202 | param->sglen, param->length); | |
b9a6e8e1 AS |
2203 | sg = alloc_sglist(param->sglen, param->length, |
2204 | 0, dev, dev->in_pipe); | |
1da177e4 LT |
2205 | if (!sg) { |
2206 | retval = -ENOMEM; | |
2207 | break; | |
2208 | } | |
fabbf219 | 2209 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2210 | retval = perform_sglist(dev, param->iterations, dev->in_pipe, |
1da177e4 | 2211 | &req, sg, param->sglen); |
fabbf219 | 2212 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2213 | break; |
2214 | case 7: | |
2215 | if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) | |
2216 | break; | |
28ffd79c | 2217 | dev_info(&intf->dev, |
1da177e4 LT |
2218 | "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", |
2219 | param->vary, param->iterations, | |
2220 | param->sglen, param->length); | |
b9a6e8e1 AS |
2221 | sg = alloc_sglist(param->sglen, param->length, |
2222 | param->vary, dev, dev->out_pipe); | |
1da177e4 LT |
2223 | if (!sg) { |
2224 | retval = -ENOMEM; | |
2225 | break; | |
2226 | } | |
fabbf219 | 2227 | /* FIRMWARE: bulk sink (maybe accepts short writes) */ |
28ffd79c | 2228 | retval = perform_sglist(dev, param->iterations, dev->out_pipe, |
1da177e4 | 2229 | &req, sg, param->sglen); |
fabbf219 | 2230 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2231 | break; |
2232 | case 8: | |
2233 | if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) | |
2234 | break; | |
28ffd79c | 2235 | dev_info(&intf->dev, |
1da177e4 LT |
2236 | "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", |
2237 | param->vary, param->iterations, | |
2238 | param->sglen, param->length); | |
b9a6e8e1 AS |
2239 | sg = alloc_sglist(param->sglen, param->length, |
2240 | param->vary, dev, dev->in_pipe); | |
1da177e4 LT |
2241 | if (!sg) { |
2242 | retval = -ENOMEM; | |
2243 | break; | |
2244 | } | |
fabbf219 | 2245 | /* FIRMWARE: bulk source (maybe generates short writes) */ |
28ffd79c | 2246 | retval = perform_sglist(dev, param->iterations, dev->in_pipe, |
1da177e4 | 2247 | &req, sg, param->sglen); |
fabbf219 | 2248 | free_sglist(sg, param->sglen); |
1da177e4 LT |
2249 | break; |
2250 | ||
2251 | /* non-queued sanity tests for control (chapter 9 subset) */ | |
2252 | case 9: | |
2253 | retval = 0; | |
28ffd79c | 2254 | dev_info(&intf->dev, |
1da177e4 LT |
2255 | "TEST 9: ch9 (subset) control tests, %d times\n", |
2256 | param->iterations); | |
2257 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2258 | retval = ch9_postconfig(dev); |
1da177e4 | 2259 | if (retval) |
28ffd79c DB |
2260 | dev_err(&intf->dev, "ch9 subset failed, " |
2261 | "iterations left %d\n", i); | |
1da177e4 LT |
2262 | break; |
2263 | ||
2264 | /* queued control messaging */ | |
2265 | case 10: | |
1da177e4 | 2266 | retval = 0; |
28ffd79c | 2267 | dev_info(&intf->dev, |
1da177e4 LT |
2268 | "TEST 10: queue %d control calls, %d times\n", |
2269 | param->sglen, | |
2270 | param->iterations); | |
fabbf219 | 2271 | retval = test_ctrl_queue(dev, param); |
1da177e4 LT |
2272 | break; |
2273 | ||
2274 | /* simple non-queued unlinks (ring with one urb) */ | |
2275 | case 11: | |
2276 | if (dev->in_pipe == 0 || !param->length) | |
2277 | break; | |
2278 | retval = 0; | |
28ffd79c | 2279 | dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n", |
1da177e4 LT |
2280 | param->iterations, param->length); |
2281 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2282 | retval = unlink_simple(dev, dev->in_pipe, |
1da177e4 LT |
2283 | param->length); |
2284 | if (retval) | |
28ffd79c | 2285 | dev_err(&intf->dev, "unlink reads failed %d, " |
1da177e4 LT |
2286 | "iterations left %d\n", retval, i); |
2287 | break; | |
2288 | case 12: | |
2289 | if (dev->out_pipe == 0 || !param->length) | |
2290 | break; | |
2291 | retval = 0; | |
28ffd79c | 2292 | dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n", |
1da177e4 LT |
2293 | param->iterations, param->length); |
2294 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2295 | retval = unlink_simple(dev, dev->out_pipe, |
1da177e4 LT |
2296 | param->length); |
2297 | if (retval) | |
28ffd79c | 2298 | dev_err(&intf->dev, "unlink writes failed %d, " |
1da177e4 LT |
2299 | "iterations left %d\n", retval, i); |
2300 | break; | |
2301 | ||
2302 | /* ep halt tests */ | |
2303 | case 13: | |
2304 | if (dev->out_pipe == 0 && dev->in_pipe == 0) | |
2305 | break; | |
2306 | retval = 0; | |
28ffd79c | 2307 | dev_info(&intf->dev, "TEST 13: set/clear %d halts\n", |
1da177e4 LT |
2308 | param->iterations); |
2309 | for (i = param->iterations; retval == 0 && i--; /* NOP */) | |
fabbf219 | 2310 | retval = halt_simple(dev); |
28ffd79c | 2311 | |
1da177e4 | 2312 | if (retval) |
28ffd79c | 2313 | ERROR(dev, "halts failed, iterations left %d\n", i); |
1da177e4 LT |
2314 | break; |
2315 | ||
2316 | /* control write tests */ | |
2317 | case 14: | |
2318 | if (!dev->info->ctrl_out) | |
2319 | break; | |
28ffd79c | 2320 | dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", |
ff7c79e4 DB |
2321 | param->iterations, |
2322 | realworld ? 1 : 0, param->length, | |
2323 | param->vary); | |
28ffd79c | 2324 | retval = ctrl_out(dev, param->iterations, |
084fb206 | 2325 | param->length, param->vary, 0); |
1da177e4 LT |
2326 | break; |
2327 | ||
2328 | /* iso write tests */ | |
2329 | case 15: | |
2330 | if (dev->out_iso_pipe == 0 || param->sglen == 0) | |
2331 | break; | |
28ffd79c | 2332 | dev_info(&intf->dev, |
1da177e4 LT |
2333 | "TEST 15: write %d iso, %d entries of %d bytes\n", |
2334 | param->iterations, | |
2335 | param->sglen, param->length); | |
fabbf219 | 2336 | /* FIRMWARE: iso sink */ |
145f48c5 | 2337 | retval = test_queue(dev, param, |
084fb206 | 2338 | dev->out_iso_pipe, dev->iso_out, 0); |
1da177e4 LT |
2339 | break; |
2340 | ||
2341 | /* iso read tests */ | |
2342 | case 16: | |
2343 | if (dev->in_iso_pipe == 0 || param->sglen == 0) | |
2344 | break; | |
28ffd79c | 2345 | dev_info(&intf->dev, |
1da177e4 LT |
2346 | "TEST 16: read %d iso, %d entries of %d bytes\n", |
2347 | param->iterations, | |
2348 | param->sglen, param->length); | |
fabbf219 | 2349 | /* FIRMWARE: iso source */ |
145f48c5 | 2350 | retval = test_queue(dev, param, |
084fb206 | 2351 | dev->in_iso_pipe, dev->iso_in, 0); |
1da177e4 LT |
2352 | break; |
2353 | ||
fabbf219 | 2354 | /* FIXME scatterlist cancel (needs helper thread) */ |
1da177e4 | 2355 | |
084fb206 MF |
2356 | /* Tests for bulk I/O using DMA mapping by core and odd address */ |
2357 | case 17: | |
2358 | if (dev->out_pipe == 0) | |
2359 | break; | |
2360 | dev_info(&intf->dev, | |
2361 | "TEST 17: write odd addr %d bytes %u times core map\n", | |
2362 | param->length, param->iterations); | |
2363 | ||
2364 | retval = test_unaligned_bulk( | |
2365 | dev, dev->out_pipe, | |
2366 | param->length, param->iterations, | |
2367 | 0, "test17"); | |
2368 | break; | |
2369 | ||
2370 | case 18: | |
2371 | if (dev->in_pipe == 0) | |
2372 | break; | |
2373 | dev_info(&intf->dev, | |
2374 | "TEST 18: read odd addr %d bytes %u times core map\n", | |
2375 | param->length, param->iterations); | |
2376 | ||
2377 | retval = test_unaligned_bulk( | |
2378 | dev, dev->in_pipe, | |
2379 | param->length, param->iterations, | |
2380 | 0, "test18"); | |
2381 | break; | |
2382 | ||
2383 | /* Tests for bulk I/O using premapped coherent buffer and odd address */ | |
2384 | case 19: | |
2385 | if (dev->out_pipe == 0) | |
2386 | break; | |
2387 | dev_info(&intf->dev, | |
2388 | "TEST 19: write odd addr %d bytes %u times premapped\n", | |
2389 | param->length, param->iterations); | |
2390 | ||
2391 | retval = test_unaligned_bulk( | |
2392 | dev, dev->out_pipe, | |
2393 | param->length, param->iterations, | |
2394 | URB_NO_TRANSFER_DMA_MAP, "test19"); | |
2395 | break; | |
2396 | ||
2397 | case 20: | |
2398 | if (dev->in_pipe == 0) | |
2399 | break; | |
2400 | dev_info(&intf->dev, | |
2401 | "TEST 20: read odd addr %d bytes %u times premapped\n", | |
2402 | param->length, param->iterations); | |
2403 | ||
2404 | retval = test_unaligned_bulk( | |
2405 | dev, dev->in_pipe, | |
2406 | param->length, param->iterations, | |
2407 | URB_NO_TRANSFER_DMA_MAP, "test20"); | |
2408 | break; | |
2409 | ||
2410 | /* control write tests with unaligned buffer */ | |
2411 | case 21: | |
2412 | if (!dev->info->ctrl_out) | |
2413 | break; | |
2414 | dev_info(&intf->dev, | |
2415 | "TEST 21: %d ep0out odd addr, %d..%d vary %d\n", | |
2416 | param->iterations, | |
2417 | realworld ? 1 : 0, param->length, | |
2418 | param->vary); | |
2419 | retval = ctrl_out(dev, param->iterations, | |
2420 | param->length, param->vary, 1); | |
2421 | break; | |
2422 | ||
2423 | /* unaligned iso tests */ | |
2424 | case 22: | |
2425 | if (dev->out_iso_pipe == 0 || param->sglen == 0) | |
2426 | break; | |
2427 | dev_info(&intf->dev, | |
2428 | "TEST 22: write %d iso odd, %d entries of %d bytes\n", | |
2429 | param->iterations, | |
2430 | param->sglen, param->length); | |
145f48c5 | 2431 | retval = test_queue(dev, param, |
084fb206 MF |
2432 | dev->out_iso_pipe, dev->iso_out, 1); |
2433 | break; | |
2434 | ||
2435 | case 23: | |
2436 | if (dev->in_iso_pipe == 0 || param->sglen == 0) | |
2437 | break; | |
2438 | dev_info(&intf->dev, | |
2439 | "TEST 23: read %d iso odd, %d entries of %d bytes\n", | |
2440 | param->iterations, | |
2441 | param->sglen, param->length); | |
145f48c5 | 2442 | retval = test_queue(dev, param, |
084fb206 MF |
2443 | dev->in_iso_pipe, dev->iso_in, 1); |
2444 | break; | |
2445 | ||
869410f8 AS |
2446 | /* unlink URBs from a bulk-OUT queue */ |
2447 | case 24: | |
2448 | if (dev->out_pipe == 0 || !param->length || param->sglen < 4) | |
2449 | break; | |
2450 | retval = 0; | |
2cb50000 | 2451 | dev_info(&intf->dev, "TEST 24: unlink from %d queues of " |
869410f8 AS |
2452 | "%d %d-byte writes\n", |
2453 | param->iterations, param->sglen, param->length); | |
2454 | for (i = param->iterations; retval == 0 && i > 0; --i) { | |
2455 | retval = unlink_queued(dev, dev->out_pipe, | |
2456 | param->sglen, param->length); | |
2457 | if (retval) { | |
2458 | dev_err(&intf->dev, | |
2459 | "unlink queued writes failed %d, " | |
2460 | "iterations left %d\n", retval, i); | |
2461 | break; | |
2462 | } | |
2463 | } | |
2464 | break; | |
2465 | ||
457a0955 AV |
2466 | /* Simple non-queued interrupt I/O tests */ |
2467 | case 25: | |
2468 | if (dev->out_int_pipe == 0) | |
2469 | break; | |
2470 | dev_info(&intf->dev, | |
2471 | "TEST 25: write %d bytes %u times\n", | |
2472 | param->length, param->iterations); | |
2473 | urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length, | |
2474 | dev->int_out->bInterval); | |
2475 | if (!urb) { | |
2476 | retval = -ENOMEM; | |
2477 | break; | |
2478 | } | |
2479 | /* FIRMWARE: interrupt sink (maybe accepts short writes) */ | |
2480 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test25"); | |
2481 | simple_free_urb(urb); | |
2482 | break; | |
2483 | case 26: | |
2484 | if (dev->in_int_pipe == 0) | |
2485 | break; | |
2486 | dev_info(&intf->dev, | |
2487 | "TEST 26: read %d bytes %u times\n", | |
2488 | param->length, param->iterations); | |
2489 | urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length, | |
2490 | dev->int_in->bInterval); | |
2491 | if (!urb) { | |
2492 | retval = -ENOMEM; | |
2493 | break; | |
2494 | } | |
2495 | /* FIRMWARE: interrupt source (maybe generates short writes) */ | |
2496 | retval = simple_io(dev, urb, param->iterations, 0, 0, "test26"); | |
2497 | simple_free_urb(urb); | |
2498 | break; | |
145f48c5 PC |
2499 | case 27: |
2500 | /* We do performance test, so ignore data compare */ | |
2501 | if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0) | |
2502 | break; | |
2503 | dev_info(&intf->dev, | |
2504 | "TEST 27: bulk write %dMbytes\n", (param->iterations * | |
2505 | param->sglen * param->length) / (1024 * 1024)); | |
2506 | retval = test_queue(dev, param, | |
2507 | dev->out_pipe, NULL, 0); | |
2508 | break; | |
2509 | case 28: | |
2510 | if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0) | |
2511 | break; | |
2512 | dev_info(&intf->dev, | |
2513 | "TEST 28: bulk read %dMbytes\n", (param->iterations * | |
2514 | param->sglen * param->length) / (1024 * 1024)); | |
2515 | retval = test_queue(dev, param, | |
2516 | dev->in_pipe, NULL, 0); | |
2517 | break; | |
1da177e4 | 2518 | } |
18fc4ebd DD |
2519 | return retval; |
2520 | } | |
2521 | ||
2522 | /*-------------------------------------------------------------------------*/ | |
2523 | ||
2524 | /* We only have this one interface to user space, through usbfs. | |
2525 | * User mode code can scan usbfs to find N different devices (maybe on | |
2526 | * different busses) to use when testing, and allocate one thread per | |
2527 | * test. So discovery is simplified, and we have no device naming issues. | |
2528 | * | |
2529 | * Don't use these only as stress/load tests. Use them along with with | |
2530 | * other USB bus activity: plugging, unplugging, mousing, mp3 playback, | |
2531 | * video capture, and so on. Run different tests at different times, in | |
2532 | * different sequences. Nothing here should interact with other devices, | |
2533 | * except indirectly by consuming USB bandwidth and CPU resources for test | |
2534 | * threads and request completion. But the only way to know that for sure | |
2535 | * is to test when HC queues are in use by many devices. | |
2536 | * | |
2537 | * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(), | |
2538 | * it locks out usbcore in certain code paths. Notably, if you disconnect | |
2539 | * the device-under-test, hub_wq will wait block forever waiting for the | |
2540 | * ioctl to complete ... so that usb_disconnect() can abort the pending | |
2541 | * urbs and then call usbtest_disconnect(). To abort a test, you're best | |
2542 | * off just killing the userspace task and waiting for it to exit. | |
2543 | */ | |
2544 | ||
2545 | static int | |
2546 | usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) | |
2547 | { | |
2548 | ||
2549 | struct usbtest_dev *dev = usb_get_intfdata(intf); | |
2550 | struct usbtest_param_64 *param_64 = buf; | |
2551 | struct usbtest_param_32 temp; | |
2552 | struct usbtest_param_32 *param_32 = buf; | |
2553 | struct timespec64 start; | |
2554 | struct timespec64 end; | |
2555 | struct timespec64 duration; | |
2556 | int retval = -EOPNOTSUPP; | |
2557 | ||
2558 | /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */ | |
2559 | ||
2560 | pattern = mod_pattern; | |
2561 | ||
2562 | if (mutex_lock_interruptible(&dev->lock)) | |
2563 | return -ERESTARTSYS; | |
2564 | ||
2565 | /* FIXME: What if a system sleep starts while a test is running? */ | |
2566 | ||
2567 | /* some devices, like ez-usb default devices, need a non-default | |
2568 | * altsetting to have any active endpoints. some tests change | |
2569 | * altsettings; force a default so most tests don't need to check. | |
2570 | */ | |
2571 | if (dev->info->alt >= 0) { | |
2572 | if (intf->altsetting->desc.bInterfaceNumber) { | |
2573 | retval = -ENODEV; | |
2574 | goto free_mutex; | |
2575 | } | |
2576 | retval = set_altsetting(dev, dev->info->alt); | |
2577 | if (retval) { | |
2578 | dev_err(&intf->dev, | |
2579 | "set altsetting to %d failed, %d\n", | |
2580 | dev->info->alt, retval); | |
2581 | goto free_mutex; | |
2582 | } | |
2583 | } | |
2584 | ||
2585 | switch (code) { | |
2586 | case USBTEST_REQUEST_64: | |
2587 | temp.test_num = param_64->test_num; | |
2588 | temp.iterations = param_64->iterations; | |
2589 | temp.length = param_64->length; | |
2590 | temp.sglen = param_64->sglen; | |
2591 | temp.vary = param_64->vary; | |
2592 | param_32 = &temp; | |
2593 | break; | |
2594 | ||
2595 | case USBTEST_REQUEST_32: | |
2596 | break; | |
2597 | ||
2598 | default: | |
2599 | retval = -EOPNOTSUPP; | |
2600 | goto free_mutex; | |
2601 | } | |
2602 | ||
2603 | ktime_get_ts64(&start); | |
2604 | ||
2605 | retval = usbtest_do_ioctl(intf, param_32); | |
28324936 | 2606 | if (retval < 0) |
18fc4ebd DD |
2607 | goto free_mutex; |
2608 | ||
2609 | ktime_get_ts64(&end); | |
2610 | ||
2611 | duration = timespec64_sub(end, start); | |
2612 | ||
2613 | temp.duration_sec = duration.tv_sec; | |
2614 | temp.duration_usec = duration.tv_nsec/NSEC_PER_USEC; | |
2615 | ||
2616 | switch (code) { | |
2617 | case USBTEST_REQUEST_32: | |
2618 | param_32->duration_sec = temp.duration_sec; | |
2619 | param_32->duration_usec = temp.duration_usec; | |
2620 | break; | |
2621 | ||
2622 | case USBTEST_REQUEST_64: | |
2623 | param_64->duration_sec = temp.duration_sec; | |
2624 | param_64->duration_usec = temp.duration_usec; | |
2625 | break; | |
1da177e4 | 2626 | } |
18fc4ebd DD |
2627 | |
2628 | free_mutex: | |
1cfab028 | 2629 | mutex_unlock(&dev->lock); |
1da177e4 LT |
2630 | return retval; |
2631 | } | |
2632 | ||
2633 | /*-------------------------------------------------------------------------*/ | |
2634 | ||
fabbf219 MF |
2635 | static unsigned force_interrupt; |
2636 | module_param(force_interrupt, uint, 0); | |
2637 | MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt"); | |
1da177e4 LT |
2638 | |
2639 | #ifdef GENERIC | |
2640 | static unsigned short vendor; | |
2641 | module_param(vendor, ushort, 0); | |
fabbf219 | 2642 | MODULE_PARM_DESC(vendor, "vendor code (from usb-if)"); |
1da177e4 LT |
2643 | |
2644 | static unsigned short product; | |
2645 | module_param(product, ushort, 0); | |
fabbf219 | 2646 | MODULE_PARM_DESC(product, "product code (from vendor)"); |
1da177e4 LT |
2647 | #endif |
2648 | ||
2649 | static int | |
fabbf219 | 2650 | usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) |
1da177e4 LT |
2651 | { |
2652 | struct usb_device *udev; | |
2653 | struct usbtest_dev *dev; | |
2654 | struct usbtest_info *info; | |
2655 | char *rtest, *wtest; | |
2656 | char *irtest, *iwtest; | |
457a0955 | 2657 | char *intrtest, *intwtest; |
1da177e4 | 2658 | |
fabbf219 | 2659 | udev = interface_to_usbdev(intf); |
1da177e4 LT |
2660 | |
2661 | #ifdef GENERIC | |
2662 | /* specify devices by module parameters? */ | |
2663 | if (id->match_flags == 0) { | |
2664 | /* vendor match required, product match optional */ | |
2665 | if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) | |
2666 | return -ENODEV; | |
2667 | if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) | |
2668 | return -ENODEV; | |
28ffd79c DB |
2669 | dev_info(&intf->dev, "matched module params, " |
2670 | "vend=0x%04x prod=0x%04x\n", | |
1da177e4 LT |
2671 | le16_to_cpu(udev->descriptor.idVendor), |
2672 | le16_to_cpu(udev->descriptor.idProduct)); | |
2673 | } | |
2674 | #endif | |
2675 | ||
e94b1766 | 2676 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
1da177e4 LT |
2677 | if (!dev) |
2678 | return -ENOMEM; | |
1da177e4 LT |
2679 | info = (struct usbtest_info *) id->driver_info; |
2680 | dev->info = info; | |
1cfab028 | 2681 | mutex_init(&dev->lock); |
1da177e4 LT |
2682 | |
2683 | dev->intf = intf; | |
2684 | ||
2685 | /* cacheline-aligned scratch for i/o */ | |
fabbf219 MF |
2686 | dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL); |
2687 | if (dev->buf == NULL) { | |
2688 | kfree(dev); | |
1da177e4 LT |
2689 | return -ENOMEM; |
2690 | } | |
2691 | ||
2692 | /* NOTE this doesn't yet test the handful of difference that are | |
2693 | * visible with high speed interrupts: bigger maxpacket (1K) and | |
2694 | * "high bandwidth" modes (up to 3 packets/uframe). | |
2695 | */ | |
2696 | rtest = wtest = ""; | |
2697 | irtest = iwtest = ""; | |
457a0955 | 2698 | intrtest = intwtest = ""; |
1da177e4 LT |
2699 | if (force_interrupt || udev->speed == USB_SPEED_LOW) { |
2700 | if (info->ep_in) { | |
fabbf219 | 2701 | dev->in_pipe = usb_rcvintpipe(udev, info->ep_in); |
1da177e4 LT |
2702 | rtest = " intr-in"; |
2703 | } | |
2704 | if (info->ep_out) { | |
fabbf219 | 2705 | dev->out_pipe = usb_sndintpipe(udev, info->ep_out); |
1da177e4 LT |
2706 | wtest = " intr-out"; |
2707 | } | |
2708 | } else { | |
d0b4652f | 2709 | if (override_alt >= 0 || info->autoconf) { |
1da177e4 LT |
2710 | int status; |
2711 | ||
fabbf219 | 2712 | status = get_endpoints(dev, intf); |
1da177e4 | 2713 | if (status < 0) { |
b6c63937 | 2714 | WARNING(dev, "couldn't get endpoints, %d\n", |
28ffd79c | 2715 | status); |
f4a728d0 JL |
2716 | kfree(dev->buf); |
2717 | kfree(dev); | |
1da177e4 LT |
2718 | return status; |
2719 | } | |
2720 | /* may find bulk or ISO pipes */ | |
2721 | } else { | |
2722 | if (info->ep_in) | |
fabbf219 | 2723 | dev->in_pipe = usb_rcvbulkpipe(udev, |
1da177e4 LT |
2724 | info->ep_in); |
2725 | if (info->ep_out) | |
fabbf219 | 2726 | dev->out_pipe = usb_sndbulkpipe(udev, |
1da177e4 LT |
2727 | info->ep_out); |
2728 | } | |
2729 | if (dev->in_pipe) | |
2730 | rtest = " bulk-in"; | |
2731 | if (dev->out_pipe) | |
2732 | wtest = " bulk-out"; | |
2733 | if (dev->in_iso_pipe) | |
2734 | irtest = " iso-in"; | |
2735 | if (dev->out_iso_pipe) | |
2736 | iwtest = " iso-out"; | |
457a0955 AV |
2737 | if (dev->in_int_pipe) |
2738 | intrtest = " int-in"; | |
2739 | if (dev->out_int_pipe) | |
2740 | intwtest = " int-out"; | |
1da177e4 LT |
2741 | } |
2742 | ||
fabbf219 MF |
2743 | usb_set_intfdata(intf, dev); |
2744 | dev_info(&intf->dev, "%s\n", info->name); | |
457a0955 | 2745 | dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n", |
e538dfda | 2746 | usb_speed_string(udev->speed), |
1da177e4 LT |
2747 | info->ctrl_out ? " in/out" : "", |
2748 | rtest, wtest, | |
2749 | irtest, iwtest, | |
457a0955 | 2750 | intrtest, intwtest, |
1da177e4 LT |
2751 | info->alt >= 0 ? " (+alt)" : ""); |
2752 | return 0; | |
2753 | } | |
2754 | ||
fabbf219 | 2755 | static int usbtest_suspend(struct usb_interface *intf, pm_message_t message) |
ff7c79e4 | 2756 | { |
ff7c79e4 DB |
2757 | return 0; |
2758 | } | |
2759 | ||
fabbf219 | 2760 | static int usbtest_resume(struct usb_interface *intf) |
ff7c79e4 | 2761 | { |
ff7c79e4 DB |
2762 | return 0; |
2763 | } | |
2764 | ||
2765 | ||
fabbf219 | 2766 | static void usbtest_disconnect(struct usb_interface *intf) |
1da177e4 | 2767 | { |
fabbf219 | 2768 | struct usbtest_dev *dev = usb_get_intfdata(intf); |
1da177e4 | 2769 | |
fabbf219 MF |
2770 | usb_set_intfdata(intf, NULL); |
2771 | dev_dbg(&intf->dev, "disconnect\n"); | |
2772 | kfree(dev); | |
1da177e4 LT |
2773 | } |
2774 | ||
2775 | /* Basic testing only needs a device that can source or sink bulk traffic. | |
2776 | * Any device can test control transfers (default with GENERIC binding). | |
2777 | * | |
2778 | * Several entries work with the default EP0 implementation that's built | |
2779 | * into EZ-USB chips. There's a default vendor ID which can be overridden | |
2780 | * by (very) small config EEPROMS, but otherwise all these devices act | |
2781 | * identically until firmware is loaded: only EP0 works. It turns out | |
2782 | * to be easy to make other endpoints work, without modifying that EP0 | |
2783 | * behavior. For now, we expect that kind of firmware. | |
2784 | */ | |
2785 | ||
2786 | /* an21xx or fx versions of ez-usb */ | |
2787 | static struct usbtest_info ez1_info = { | |
2788 | .name = "EZ-USB device", | |
2789 | .ep_in = 2, | |
2790 | .ep_out = 2, | |
2791 | .alt = 1, | |
2792 | }; | |
2793 | ||
2794 | /* fx2 version of ez-usb */ | |
2795 | static struct usbtest_info ez2_info = { | |
2796 | .name = "FX2 device", | |
2797 | .ep_in = 6, | |
2798 | .ep_out = 2, | |
2799 | .alt = 1, | |
2800 | }; | |
2801 | ||
2802 | /* ezusb family device with dedicated usb test firmware, | |
2803 | */ | |
2804 | static struct usbtest_info fw_info = { | |
2805 | .name = "usb test device", | |
2806 | .ep_in = 2, | |
2807 | .ep_out = 2, | |
2808 | .alt = 1, | |
fabbf219 | 2809 | .autoconf = 1, /* iso and ctrl_out need autoconf */ |
1da177e4 | 2810 | .ctrl_out = 1, |
fabbf219 | 2811 | .iso = 1, /* iso_ep's are #8 in/out */ |
1da177e4 LT |
2812 | }; |
2813 | ||
2814 | /* peripheral running Linux and 'zero.c' test firmware, or | |
2815 | * its user-mode cousin. different versions of this use | |
2816 | * different hardware with the same vendor/product codes. | |
2817 | * host side MUST rely on the endpoint descriptors. | |
2818 | */ | |
2819 | static struct usbtest_info gz_info = { | |
2820 | .name = "Linux gadget zero", | |
2821 | .autoconf = 1, | |
2822 | .ctrl_out = 1, | |
4b85c624 | 2823 | .iso = 1, |
457a0955 | 2824 | .intr = 1, |
1da177e4 LT |
2825 | .alt = 0, |
2826 | }; | |
2827 | ||
2828 | static struct usbtest_info um_info = { | |
2829 | .name = "Linux user mode test driver", | |
2830 | .autoconf = 1, | |
2831 | .alt = -1, | |
2832 | }; | |
2833 | ||
2834 | static struct usbtest_info um2_info = { | |
2835 | .name = "Linux user mode ISO test driver", | |
2836 | .autoconf = 1, | |
2837 | .iso = 1, | |
2838 | .alt = -1, | |
2839 | }; | |
2840 | ||
2841 | #ifdef IBOT2 | |
2842 | /* this is a nice source of high speed bulk data; | |
2843 | * uses an FX2, with firmware provided in the device | |
2844 | */ | |
2845 | static struct usbtest_info ibot2_info = { | |
2846 | .name = "iBOT2 webcam", | |
2847 | .ep_in = 2, | |
2848 | .alt = -1, | |
2849 | }; | |
2850 | #endif | |
2851 | ||
2852 | #ifdef GENERIC | |
2853 | /* we can use any device to test control traffic */ | |
2854 | static struct usbtest_info generic_info = { | |
2855 | .name = "Generic USB device", | |
2856 | .alt = -1, | |
2857 | }; | |
2858 | #endif | |
2859 | ||
1da177e4 | 2860 | |
33b9e162 | 2861 | static const struct usb_device_id id_table[] = { |
1da177e4 | 2862 | |
1da177e4 LT |
2863 | /*-------------------------------------------------------------*/ |
2864 | ||
2865 | /* EZ-USB devices which download firmware to replace (or in our | |
2866 | * case augment) the default device implementation. | |
2867 | */ | |
2868 | ||
2869 | /* generic EZ-USB FX controller */ | |
fabbf219 | 2870 | { USB_DEVICE(0x0547, 0x2235), |
1da177e4 | 2871 | .driver_info = (unsigned long) &ez1_info, |
fabbf219 | 2872 | }, |
1da177e4 LT |
2873 | |
2874 | /* CY3671 development board with EZ-USB FX */ | |
fabbf219 | 2875 | { USB_DEVICE(0x0547, 0x0080), |
1da177e4 | 2876 | .driver_info = (unsigned long) &ez1_info, |
fabbf219 | 2877 | }, |
1da177e4 LT |
2878 | |
2879 | /* generic EZ-USB FX2 controller (or development board) */ | |
fabbf219 | 2880 | { USB_DEVICE(0x04b4, 0x8613), |
1da177e4 | 2881 | .driver_info = (unsigned long) &ez2_info, |
fabbf219 | 2882 | }, |
1da177e4 LT |
2883 | |
2884 | /* re-enumerated usb test device firmware */ | |
fabbf219 | 2885 | { USB_DEVICE(0xfff0, 0xfff0), |
1da177e4 | 2886 | .driver_info = (unsigned long) &fw_info, |
fabbf219 | 2887 | }, |
1da177e4 LT |
2888 | |
2889 | /* "Gadget Zero" firmware runs under Linux */ | |
fabbf219 | 2890 | { USB_DEVICE(0x0525, 0xa4a0), |
1da177e4 | 2891 | .driver_info = (unsigned long) &gz_info, |
fabbf219 | 2892 | }, |
1da177e4 LT |
2893 | |
2894 | /* so does a user-mode variant */ | |
fabbf219 | 2895 | { USB_DEVICE(0x0525, 0xa4a4), |
1da177e4 | 2896 | .driver_info = (unsigned long) &um_info, |
fabbf219 | 2897 | }, |
1da177e4 LT |
2898 | |
2899 | /* ... and a user-mode variant that talks iso */ | |
fabbf219 | 2900 | { USB_DEVICE(0x0525, 0xa4a3), |
1da177e4 | 2901 | .driver_info = (unsigned long) &um2_info, |
fabbf219 | 2902 | }, |
1da177e4 LT |
2903 | |
2904 | #ifdef KEYSPAN_19Qi | |
2905 | /* Keyspan 19qi uses an21xx (original EZ-USB) */ | |
fabbf219 MF |
2906 | /* this does not coexist with the real Keyspan 19qi driver! */ |
2907 | { USB_DEVICE(0x06cd, 0x010b), | |
1da177e4 | 2908 | .driver_info = (unsigned long) &ez1_info, |
fabbf219 | 2909 | }, |
1da177e4 LT |
2910 | #endif |
2911 | ||
2912 | /*-------------------------------------------------------------*/ | |
2913 | ||
2914 | #ifdef IBOT2 | |
2915 | /* iBOT2 makes a nice source of high speed bulk-in data */ | |
fabbf219 MF |
2916 | /* this does not coexist with a real iBOT2 driver! */ |
2917 | { USB_DEVICE(0x0b62, 0x0059), | |
1da177e4 | 2918 | .driver_info = (unsigned long) &ibot2_info, |
fabbf219 | 2919 | }, |
1da177e4 LT |
2920 | #endif |
2921 | ||
2922 | /*-------------------------------------------------------------*/ | |
2923 | ||
2924 | #ifdef GENERIC | |
2925 | /* module params can specify devices to use for control tests */ | |
2926 | { .driver_info = (unsigned long) &generic_info, }, | |
2927 | #endif | |
2928 | ||
2929 | /*-------------------------------------------------------------*/ | |
2930 | ||
2931 | { } | |
2932 | }; | |
fabbf219 | 2933 | MODULE_DEVICE_TABLE(usb, id_table); |
1da177e4 LT |
2934 | |
2935 | static struct usb_driver usbtest_driver = { | |
1da177e4 LT |
2936 | .name = "usbtest", |
2937 | .id_table = id_table, | |
2938 | .probe = usbtest_probe, | |
c532b29a | 2939 | .unlocked_ioctl = usbtest_ioctl, |
1da177e4 | 2940 | .disconnect = usbtest_disconnect, |
ff7c79e4 DB |
2941 | .suspend = usbtest_suspend, |
2942 | .resume = usbtest_resume, | |
1da177e4 LT |
2943 | }; |
2944 | ||
2945 | /*-------------------------------------------------------------------------*/ | |
2946 | ||
fabbf219 | 2947 | static int __init usbtest_init(void) |
1da177e4 LT |
2948 | { |
2949 | #ifdef GENERIC | |
2950 | if (vendor) | |
28ffd79c | 2951 | pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product); |
1da177e4 | 2952 | #endif |
fabbf219 | 2953 | return usb_register(&usbtest_driver); |
1da177e4 | 2954 | } |
fabbf219 | 2955 | module_init(usbtest_init); |
1da177e4 | 2956 | |
fabbf219 | 2957 | static void __exit usbtest_exit(void) |
1da177e4 | 2958 | { |
fabbf219 | 2959 | usb_deregister(&usbtest_driver); |
1da177e4 | 2960 | } |
fabbf219 | 2961 | module_exit(usbtest_exit); |
1da177e4 | 2962 | |
fabbf219 MF |
2963 | MODULE_DESCRIPTION("USB Core/HCD Testing Driver"); |
2964 | MODULE_LICENSE("GPL"); | |
1da177e4 | 2965 |