blob: 92fdb6e9faff4003a157ea742a2193e869d06519 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#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>
David Hardeman378f0582005-09-17 17:55:31 +10008#include <linux/scatterlist.h>
Matthias Kaehlcke1cfab022007-12-13 16:15:33 -08009#include <linux/mutex.h>
Alan Stern32b36ee2014-06-03 11:11:34 -040010#include <linux/timer.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/usb.h>
12
Roger Quadrose5e47462013-12-18 15:40:10 +053013#define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
15/*-------------------------------------------------------------------------*/
16
Alan Sternd0b46522013-01-30 16:38:11 -050017static int override_alt = -1;
18module_param_named(alt, override_alt, int, 0644);
19MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection");
Peter Chen145f48c2015-10-13 15:18:21 +080020static void complicated_callback(struct urb *urb);
Alan Sternd0b46522013-01-30 16:38:11 -050021
22/*-------------------------------------------------------------------------*/
23
Martin Fuzzeyfabbf212010-10-01 00:20:42 +020024/* FIXME make these public somewhere; usbdevfs.h? */
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -080025
26/* Parameter for usbtest driver. */
27struct usbtest_param_32 {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +020028 /* inputs */
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -080029 __u32 test_num; /* 0..(TEST_CASES-1) */
30 __u32 iterations;
31 __u32 length;
32 __u32 vary;
33 __u32 sglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -070034
Martin Fuzzeyfabbf212010-10-01 00:20:42 +020035 /* outputs */
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -080036 __s32 duration_sec;
37 __s32 duration_usec;
Linus Torvalds1da177e2005-04-16 15:20:36 -070038};
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -080039
40/*
41 * Compat parameter to the usbtest driver.
42 * This supports older user space binaries compiled with 64 bit compiler.
43 */
44struct 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)
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
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
75struct usbtest_info {
76 const char *name;
77 u8 ep_in; /* bulk/intr source */
78 u8 ep_out; /* bulk/intr sink */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +020079 unsigned autoconf:1;
80 unsigned ctrl_out:1;
81 unsigned iso:1; /* try iso in/out */
Amit Virdi457a0952014-08-22 14:36:37 +053082 unsigned intr:1; /* try interrupt in/out */
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 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 */
92struct 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;
Amit Virdi457a0952014-08-22 14:36:37 +053099 int in_int_pipe;
100 int out_int_pipe;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 struct usb_endpoint_descriptor *iso_in, *iso_out;
Amit Virdi457a0952014-08-22 14:36:37 +0530102 struct usb_endpoint_descriptor *int_in, *int_out;
Matthias Kaehlcke1cfab022007-12-13 16:15:33 -0800103 struct mutex lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
105#define TBUF_SIZE 256
106 u8 *buf;
107};
108
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200109static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110{
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200111 return interface_to_usbdev(test->intf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112}
113
114/* set up all urbs so they can be used with either bulk or interrupt */
115#define INTERRUPT_RATE 1 /* msec/transfer */
116
David Brownell28ffd792008-04-25 18:51:10 -0700117#define ERROR(tdev, fmt, args...) \
118 dev_err(&(tdev)->intf->dev , fmt , ## args)
Arjan van de Venb6c63932008-07-25 01:45:52 -0700119#define WARNING(tdev, fmt, args...) \
David Brownell28ffd792008-04-25 18:51:10 -0700120 dev_warn(&(tdev)->intf->dev , fmt , ## args)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
Martin Fuzzey084fb202011-01-16 19:17:11 +0100122#define GUARD_BYTE 0xA5
Peter Chen41d3c0b2015-09-01 09:47:58 +0800123#define MAX_SGLEN 128
Martin Fuzzey084fb202011-01-16 19:17:11 +0100124
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125/*-------------------------------------------------------------------------*/
126
127static int
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200128get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129{
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;
Amit Virdi457a0952014-08-22 14:36:37 +0530134 struct usb_host_endpoint *int_in, *int_out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135 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;
Amit Virdi457a0952014-08-22 14:36:37 +0530142 int_in = int_out = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 alt = intf->altsetting + tmp;
144
Alan Sternd0b46522013-01-30 16:38:11 -0500145 if (override_alt >= 0 &&
146 override_alt != alt->desc.bAlternateSetting)
147 continue;
148
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 /* take the first altsetting with in-bulk + out-bulk;
Justin P. Mattock70f23fd2011-05-10 10:16:21 +0200150 * ignore other endpoints and altsettings.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 */
152 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
153 struct usb_host_endpoint *e;
154
155 e = alt->endpoint + ep;
Huang Rui9a37a502013-09-24 00:03:43 +0800156 switch (usb_endpoint_type(&e->desc)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 case USB_ENDPOINT_XFER_BULK:
158 break;
Amit Virdi457a0952014-08-22 14:36:37 +0530159 case USB_ENDPOINT_XFER_INT:
160 if (dev->info->intr)
161 goto try_intr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 case USB_ENDPOINT_XFER_ISOC:
163 if (dev->info->iso)
164 goto try_iso;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200165 /* FALLTHROUGH */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 default:
167 continue;
168 }
Luiz Fernando N. Capitulino4d823dd2006-10-26 13:03:02 -0300169 if (usb_endpoint_dir_in(&e->desc)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 if (!in)
171 in = e;
172 } else {
173 if (!out)
174 out = e;
175 }
176 continue;
Amit Virdi457a0952014-08-22 14:36:37 +0530177try_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;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186try_iso:
Luiz Fernando N. Capitulino4d823dd2006-10-26 13:03:02 -0300187 if (usb_endpoint_dir_in(&e->desc)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 if (!iso_in)
189 iso_in = e;
190 } else {
191 if (!iso_out)
192 iso_out = e;
193 }
194 }
Amit Virdi457a0952014-08-22 14:36:37 +0530195 if ((in && out) || iso_in || iso_out || int_in || int_out)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 goto found;
197 }
198 return -EINVAL;
199
200found:
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200201 udev = testdev_to_usbdev(dev);
Alan Sternd0b46522013-01-30 16:38:11 -0500202 dev->info->alt = alt->desc.bAlternateSetting;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203 if (alt->desc.bAlternateSetting != 0) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200204 tmp = usb_set_interface(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205 alt->desc.bInterfaceNumber,
206 alt->desc.bAlternateSetting);
207 if (tmp < 0)
208 return tmp;
209 }
210
211 if (in) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200212 dev->in_pipe = usb_rcvbulkpipe(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200214 dev->out_pipe = usb_sndbulkpipe(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
216 }
217 if (iso_in) {
218 dev->iso_in = &iso_in->desc;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200219 dev->in_iso_pipe = usb_rcvisocpipe(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 iso_in->desc.bEndpointAddress
221 & USB_ENDPOINT_NUMBER_MASK);
Ming Lei951fd8e2010-08-02 22:09:17 +0800222 }
223
224 if (iso_out) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 dev->iso_out = &iso_out->desc;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200226 dev->out_iso_pipe = usb_sndisocpipe(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 iso_out->desc.bEndpointAddress
228 & USB_ENDPOINT_NUMBER_MASK);
229 }
Amit Virdi457a0952014-08-22 14:36:37 +0530230
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 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 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
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200256static void simple_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257{
Ming Leicdc97792008-02-24 18:41:47 +0800258 complete(urb->context);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259}
260
Martin Fuzzey084fb202011-01-16 19:17:11 +0100261static struct urb *usbtest_alloc_urb(
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 struct usb_device *udev,
263 int pipe,
Martin Fuzzey084fb202011-01-16 19:17:11 +0100264 unsigned long bytes,
265 unsigned transfer_flags,
Amit Virdi457a0952014-08-22 14:36:37 +0530266 unsigned offset,
Peter Chen145f48c2015-10-13 15:18:21 +0800267 u8 bInterval,
268 usb_complete_t complete_fn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269{
270 struct urb *urb;
271
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200272 urb = usb_alloc_urb(0, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273 if (!urb)
274 return urb;
Amit Virdi457a0952014-08-22 14:36:37 +0530275
276 if (bInterval)
Peter Chen145f48c2015-10-13 15:18:21 +0800277 usb_fill_int_urb(urb, udev, pipe, NULL, bytes, complete_fn,
Amit Virdi457a0952014-08-22 14:36:37 +0530278 NULL, bInterval);
279 else
Peter Chen145f48c2015-10-13 15:18:21 +0800280 usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, complete_fn,
Amit Virdi457a0952014-08-22 14:36:37 +0530281 NULL);
282
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 urb->interval = (udev->speed == USB_SPEED_HIGH)
284 ? (INTERRUPT_RATE << 3)
285 : INTERRUPT_RATE;
Martin Fuzzey084fb202011-01-16 19:17:11 +0100286 urb->transfer_flags = transfer_flags;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200287 if (usb_pipein(pipe))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 urb->transfer_flags |= URB_SHORT_NOT_OK;
Martin Fuzzey084fb202011-01-16 19:17:11 +0100289
290 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
291 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
292 GFP_KERNEL, &urb->transfer_dma);
293 else
294 urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL);
295
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 if (!urb->transfer_buffer) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200297 usb_free_urb(urb);
Martin Fuzzey084fb202011-01-16 19:17:11 +0100298 return NULL;
299 }
300
301 /* To test unaligned transfers add an offset and fill the
302 unused memory with a guard value */
303 if (offset) {
304 memset(urb->transfer_buffer, GUARD_BYTE, offset);
305 urb->transfer_buffer += offset;
306 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
307 urb->transfer_dma += offset;
308 }
309
310 /* For inbound transfers use guard byte so that test fails if
311 data not correctly copied */
312 memset(urb->transfer_buffer,
313 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
314 bytes);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 return urb;
316}
317
Martin Fuzzey084fb202011-01-16 19:17:11 +0100318static struct urb *simple_alloc_urb(
319 struct usb_device *udev,
320 int pipe,
Amit Virdi457a0952014-08-22 14:36:37 +0530321 unsigned long bytes,
322 u8 bInterval)
Martin Fuzzey084fb202011-01-16 19:17:11 +0100323{
Amit Virdi457a0952014-08-22 14:36:37 +0530324 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
Peter Chen145f48c2015-10-13 15:18:21 +0800325 bInterval, simple_callback);
326}
327
328static struct urb *complicated_alloc_urb(
329 struct usb_device *udev,
330 int pipe,
331 unsigned long bytes,
332 u8 bInterval)
333{
334 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0,
335 bInterval, complicated_callback);
Martin Fuzzey084fb202011-01-16 19:17:11 +0100336}
337
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200338static unsigned pattern;
Vikram Pandita7f4e9852009-11-09 21:24:32 -0600339static unsigned mod_pattern;
340module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR);
341MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800343static unsigned get_maxpacket(struct usb_device *udev, int pipe)
344{
345 struct usb_host_endpoint *ep;
346
347 ep = usb_pipe_endpoint(udev, pipe);
348 return le16_to_cpup(&ep->desc.wMaxPacketSize);
349}
350
351static void simple_fill_buf(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352{
353 unsigned i;
354 u8 *buf = urb->transfer_buffer;
355 unsigned len = urb->transfer_buffer_length;
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800356 unsigned maxpacket;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
358 switch (pattern) {
359 default:
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200360 /* FALLTHROUGH */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 case 0:
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200362 memset(buf, 0, len);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 break;
364 case 1: /* mod63 */
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800365 maxpacket = get_maxpacket(urb->dev, urb->pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 for (i = 0; i < len; i++)
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800367 *buf++ = (u8) ((i % maxpacket) % 63);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 break;
369 }
370}
371
Greg Dietsche304b0b52011-05-08 22:51:43 -0500372static inline unsigned long buffer_offset(void *buf)
Martin Fuzzey084fb202011-01-16 19:17:11 +0100373{
Greg Dietsche304b0b52011-05-08 22:51:43 -0500374 return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1);
Martin Fuzzey084fb202011-01-16 19:17:11 +0100375}
376
377static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb)
378{
379 u8 *buf = urb->transfer_buffer;
380 u8 *guard = buf - buffer_offset(buf);
381 unsigned i;
382
383 for (i = 0; guard < buf; i++, guard++) {
384 if (*guard != GUARD_BYTE) {
385 ERROR(tdev, "guard byte[%d] %d (not %d)\n",
386 i, *guard, GUARD_BYTE);
387 return -EINVAL;
388 }
389 }
390 return 0;
391}
392
393static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394{
395 unsigned i;
396 u8 expected;
397 u8 *buf = urb->transfer_buffer;
398 unsigned len = urb->actual_length;
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800399 unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400
Martin Fuzzey084fb202011-01-16 19:17:11 +0100401 int ret = check_guard_bytes(tdev, urb);
402 if (ret)
403 return ret;
404
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 for (i = 0; i < len; i++, buf++) {
406 switch (pattern) {
407 /* all-zeroes has no synchronization issues */
408 case 0:
409 expected = 0;
410 break;
411 /* mod63 stays in sync with short-terminated transfers,
412 * or otherwise when host and gadget agree on how large
413 * each usb transfer request should be. resync is done
414 * with set_interface or set_config.
415 */
416 case 1: /* mod63 */
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800417 expected = (i % maxpacket) % 63;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 break;
419 /* always fail unsupported patterns */
420 default:
421 expected = !*buf;
422 break;
423 }
424 if (*buf == expected)
425 continue;
David Brownell28ffd792008-04-25 18:51:10 -0700426 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427 return -EINVAL;
428 }
429 return 0;
430}
431
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200432static void simple_free_urb(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433{
Greg Dietsche304b0b52011-05-08 22:51:43 -0500434 unsigned long offset = buffer_offset(urb->transfer_buffer);
Martin Fuzzey084fb202011-01-16 19:17:11 +0100435
436 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)
437 usb_free_coherent(
438 urb->dev,
439 urb->transfer_buffer_length + offset,
440 urb->transfer_buffer - offset,
441 urb->transfer_dma - offset);
442 else
443 kfree(urb->transfer_buffer - offset);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200444 usb_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445}
446
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200447static int simple_io(
David Brownell28ffd792008-04-25 18:51:10 -0700448 struct usbtest_dev *tdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 struct urb *urb,
450 int iterations,
451 int vary,
452 int expected,
453 const char *label
454)
455{
456 struct usb_device *udev = urb->dev;
457 int max = urb->transfer_buffer_length;
458 struct completion completion;
459 int retval = 0;
Roger Quadrose5e47462013-12-18 15:40:10 +0530460 unsigned long expire;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461
462 urb->context = &completion;
463 while (retval == 0 && iterations-- > 0) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200464 init_completion(&completion);
Sebastian Andrzej Siewior7c79d092011-08-23 10:44:54 +0200465 if (usb_pipeout(urb->pipe)) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200466 simple_fill_buf(urb);
Sebastian Andrzej Siewior7c79d092011-08-23 10:44:54 +0200467 urb->transfer_flags |= URB_ZERO_PACKET;
468 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200469 retval = usb_submit_urb(urb, GFP_KERNEL);
470 if (retval != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 break;
472
Roger Quadrose5e47462013-12-18 15:40:10 +0530473 expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT);
474 if (!wait_for_completion_timeout(&completion, expire)) {
475 usb_kill_urb(urb);
476 retval = (urb->status == -ENOENT ?
477 -ETIMEDOUT : urb->status);
478 } else {
479 retval = urb->status;
480 }
481
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 urb->dev = udev;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200483 if (retval == 0 && usb_pipein(urb->pipe))
David Brownell28ffd792008-04-25 18:51:10 -0700484 retval = simple_check_buf(tdev, urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485
486 if (vary) {
487 int len = urb->transfer_buffer_length;
488
489 len += vary;
490 len %= max;
491 if (len == 0)
492 len = (vary < max) ? vary : max;
493 urb->transfer_buffer_length = len;
494 }
495
496 /* FIXME if endpoint halted, clear halt (and log) */
497 }
498 urb->transfer_buffer_length = max;
499
500 if (expected != retval)
David Brownell28ffd792008-04-25 18:51:10 -0700501 dev_err(&udev->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502 "%s failed, iterations left %d, status %d (not %d)\n",
503 label, iterations, retval, expected);
504 return retval;
505}
506
507
508/*-------------------------------------------------------------------------*/
509
510/* We use scatterlist primitives to test queued I/O.
511 * Yes, this also tests the scatterlist primitives.
512 */
513
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200514static void free_sglist(struct scatterlist *sg, int nents)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700515{
516 unsigned i;
David Brownell28ffd792008-04-25 18:51:10 -0700517
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518 if (!sg)
519 return;
520 for (i = 0; i < nents; i++) {
Jens Axboe45711f12007-10-22 21:19:53 +0200521 if (!sg_page(&sg[i]))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 continue;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200523 kfree(sg_virt(&sg[i]));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200525 kfree(sg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526}
527
528static struct scatterlist *
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800529alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530{
531 struct scatterlist *sg;
532 unsigned i;
533 unsigned size = max;
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800534 unsigned maxpacket =
535 get_maxpacket(interface_to_usbdev(dev->intf), pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536
Dan Carpenter564e6982012-11-17 18:06:11 +0300537 if (max == 0)
538 return NULL;
539
Huang Ruif55055b2013-10-21 23:15:30 +0800540 sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541 if (!sg)
542 return NULL;
Alan Stern4756feb2008-03-27 10:15:22 -0400543 sg_init_table(sg, nents);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
545 for (i = 0; i < nents; i++) {
546 char *buf;
David Brownell8b524902006-04-02 10:20:15 -0800547 unsigned j;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200549 buf = kzalloc(size, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550 if (!buf) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200551 free_sglist(sg, i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 return NULL;
553 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554
555 /* kmalloc pages are always physically contiguous! */
Alan Stern4756feb2008-03-27 10:15:22 -0400556 sg_set_buf(&sg[i], buf, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557
David Brownell8b524902006-04-02 10:20:15 -0800558 switch (pattern) {
559 case 0:
560 /* already zeroed */
561 break;
562 case 1:
563 for (j = 0; j < size; j++)
Alan Sternb9a6e8e2015-09-01 09:48:01 +0800564 *buf++ = (u8) ((j % maxpacket) % 63);
David Brownell8b524902006-04-02 10:20:15 -0800565 break;
566 }
567
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 if (vary) {
569 size += vary;
570 size %= max;
571 if (size == 0)
572 size = (vary < max) ? vary : max;
573 }
574 }
575
576 return sg;
577}
578
Alan Stern32b36ee2014-06-03 11:11:34 -0400579static void sg_timeout(unsigned long _req)
580{
581 struct usb_sg_request *req = (struct usb_sg_request *) _req;
582
583 req->status = -ETIMEDOUT;
584 usb_sg_cancel(req);
585}
586
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200587static int perform_sglist(
David Brownell28ffd792008-04-25 18:51:10 -0700588 struct usbtest_dev *tdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700589 unsigned iterations,
590 int pipe,
591 struct usb_sg_request *req,
592 struct scatterlist *sg,
593 int nents
594)
595{
David Brownell28ffd792008-04-25 18:51:10 -0700596 struct usb_device *udev = testdev_to_usbdev(tdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 int retval = 0;
Alan Stern32b36ee2014-06-03 11:11:34 -0400598 struct timer_list sg_timer;
599
600 setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601
602 while (retval == 0 && iterations-- > 0) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200603 retval = usb_sg_init(req, udev, pipe,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604 (udev->speed == USB_SPEED_HIGH)
605 ? (INTERRUPT_RATE << 3)
606 : INTERRUPT_RATE,
Christoph Lametere94b1762006-12-06 20:33:17 -0800607 sg, nents, 0, GFP_KERNEL);
David Brownell28ffd792008-04-25 18:51:10 -0700608
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 if (retval)
610 break;
Alan Stern32b36ee2014-06-03 11:11:34 -0400611 mod_timer(&sg_timer, jiffies +
612 msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200613 usb_sg_wait(req);
Alan Stern32b36ee2014-06-03 11:11:34 -0400614 del_timer_sync(&sg_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615 retval = req->status;
616
David Brownell8b524902006-04-02 10:20:15 -0800617 /* FIXME check resulting data pattern */
618
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619 /* FIXME if endpoint halted, clear halt (and log) */
620 }
621
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200622 /* FIXME for unlink or fault handling tests, don't report
623 * failure if retval is as we expected ...
624 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625 if (retval)
David Brownell28ffd792008-04-25 18:51:10 -0700626 ERROR(tdev, "perform_sglist failed, "
627 "iterations left %d, status %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 iterations, retval);
629 return retval;
630}
631
632
633/*-------------------------------------------------------------------------*/
634
635/* unqueued control message testing
636 *
637 * there's a nice set of device functional requirements in chapter 9 of the
638 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use
639 * special test firmware.
640 *
641 * we know the device is configured (or suspended) by the time it's visible
642 * through usbfs. we can't change that, so we won't test enumeration (which
643 * worked 'well enough' to get here, this time), power management (ditto),
644 * or remote wakeup (which needs human interaction).
645 */
646
647static unsigned realworld = 1;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200648module_param(realworld, uint, 0);
649MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200651static int get_altsetting(struct usbtest_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652{
653 struct usb_interface *iface = dev->intf;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200654 struct usb_device *udev = interface_to_usbdev(iface);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 int retval;
656
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200657 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200659 0, iface->altsetting[0].desc.bInterfaceNumber,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660 dev->buf, 1, USB_CTRL_GET_TIMEOUT);
661 switch (retval) {
662 case 1:
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200663 return dev->buf[0];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 case 0:
665 retval = -ERANGE;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200666 /* FALLTHROUGH */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667 default:
668 return retval;
669 }
670}
671
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200672static int set_altsetting(struct usbtest_dev *dev, int alternate)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673{
674 struct usb_interface *iface = dev->intf;
675 struct usb_device *udev;
676
677 if (alternate < 0 || alternate >= 256)
678 return -EINVAL;
679
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200680 udev = interface_to_usbdev(iface);
681 return usb_set_interface(udev,
682 iface->altsetting[0].desc.bInterfaceNumber,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 alternate);
684}
685
David Brownell28ffd792008-04-25 18:51:10 -0700686static int is_good_config(struct usbtest_dev *tdev, int len)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687{
688 struct usb_config_descriptor *config;
David Brownell28ffd792008-04-25 18:51:10 -0700689
Huang Ruif55055b2013-10-21 23:15:30 +0800690 if (len < sizeof(*config))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 return 0;
David Brownell28ffd792008-04-25 18:51:10 -0700692 config = (struct usb_config_descriptor *) tdev->buf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693
694 switch (config->bDescriptorType) {
695 case USB_DT_CONFIG:
696 case USB_DT_OTHER_SPEED_CONFIG:
697 if (config->bLength != 9) {
David Brownell28ffd792008-04-25 18:51:10 -0700698 ERROR(tdev, "bogus config descriptor length\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699 return 0;
700 }
701 /* this bit 'must be 1' but often isn't */
702 if (!realworld && !(config->bmAttributes & 0x80)) {
David Brownell28ffd792008-04-25 18:51:10 -0700703 ERROR(tdev, "high bit of config attributes not set\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 return 0;
705 }
706 if (config->bmAttributes & 0x1f) { /* reserved == 0 */
David Brownell28ffd792008-04-25 18:51:10 -0700707 ERROR(tdev, "reserved config bits set\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 return 0;
709 }
710 break;
711 default:
712 return 0;
713 }
714
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200715 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 return 1;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200717 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718 return 1;
David Brownell28ffd792008-04-25 18:51:10 -0700719 ERROR(tdev, "bogus config descriptor read size\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720 return 0;
721}
722
Huang Rui82f92672013-10-30 11:27:38 +0800723static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
724{
725 struct usb_ext_cap_descriptor *ext;
726 u32 attr;
727
728 ext = (struct usb_ext_cap_descriptor *) buf;
729
730 if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
731 ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
732 return 0;
733 }
734
735 attr = le32_to_cpu(ext->bmAttributes);
Huang Rui875bc232013-11-13 22:35:14 +0800736 /* bits[1:15] is used and others are reserved */
737 if (attr & ~0xfffe) { /* reserved == 0 */
Huang Rui82f92672013-10-30 11:27:38 +0800738 ERROR(tdev, "reserved bits set\n");
739 return 0;
740 }
741
742 return 1;
743}
744
Huang Ruib8fef792013-10-30 11:27:39 +0800745static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
746{
747 struct usb_ss_cap_descriptor *ss;
748
749 ss = (struct usb_ss_cap_descriptor *) buf;
750
751 if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
752 ERROR(tdev, "bogus superspeed device capability descriptor length\n");
753 return 0;
754 }
755
756 /*
757 * only bit[1] of bmAttributes is used for LTM and others are
758 * reserved
759 */
760 if (ss->bmAttributes & ~0x02) { /* reserved == 0 */
761 ERROR(tdev, "reserved bits set in bmAttributes\n");
762 return 0;
763 }
764
765 /* bits[0:3] of wSpeedSupported is used and others are reserved */
766 if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */
767 ERROR(tdev, "reserved bits set in wSpeedSupported\n");
768 return 0;
769 }
770
771 return 1;
772}
773
Huang Rui8e292172013-10-30 11:27:40 +0800774static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
775{
776 struct usb_ss_container_id_descriptor *con_id;
777
778 con_id = (struct usb_ss_container_id_descriptor *) buf;
779
780 if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
781 ERROR(tdev, "bogus container id descriptor length\n");
782 return 0;
783 }
784
785 if (con_id->bReserved) { /* reserved == 0 */
786 ERROR(tdev, "reserved bits set\n");
787 return 0;
788 }
789
790 return 1;
791}
792
Linus Torvalds1da177e2005-04-16 15:20:36 -0700793/* sanity test for standard requests working with usb_control_mesg() and some
794 * of the utility functions which use it.
795 *
796 * this doesn't test how endpoint halts behave or data toggles get set, since
797 * we won't do I/O to bulk/interrupt endpoints here (which is how to change
798 * halt or toggle). toggle testing is impractical without support from hcds.
799 *
800 * this avoids failing devices linux would normally work with, by not testing
801 * config/altsetting operations for devices that only support their defaults.
802 * such devices rarely support those needless operations.
803 *
804 * NOTE that since this is a sanity test, it's not examining boundary cases
805 * to see if usbcore, hcd, and device all behave right. such testing would
806 * involve varied read sizes and other operation sequences.
807 */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200808static int ch9_postconfig(struct usbtest_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809{
810 struct usb_interface *iface = dev->intf;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200811 struct usb_device *udev = interface_to_usbdev(iface);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812 int i, alt, retval;
813
814 /* [9.2.3] if there's more than one altsetting, we need to be able to
815 * set and get each one. mostly trusts the descriptors from usbcore.
816 */
817 for (i = 0; i < iface->num_altsetting; i++) {
818
819 /* 9.2.3 constrains the range here */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200820 alt = iface->altsetting[i].desc.bAlternateSetting;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 if (alt < 0 || alt >= iface->num_altsetting) {
David Brownell28ffd792008-04-25 18:51:10 -0700822 dev_err(&iface->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823 "invalid alt [%d].bAltSetting = %d\n",
824 i, alt);
825 }
826
827 /* [real world] get/set unimplemented if there's only one */
828 if (realworld && iface->num_altsetting == 1)
829 continue;
830
831 /* [9.4.10] set_interface */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200832 retval = set_altsetting(dev, alt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833 if (retval) {
David Brownell28ffd792008-04-25 18:51:10 -0700834 dev_err(&iface->dev, "can't set_interface = %d, %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835 alt, retval);
836 return retval;
837 }
838
839 /* [9.4.4] get_interface always works */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200840 retval = get_altsetting(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841 if (retval != alt) {
David Brownell28ffd792008-04-25 18:51:10 -0700842 dev_err(&iface->dev, "get alt should be %d, was %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 alt, retval);
844 return (retval < 0) ? retval : -EDOM;
845 }
846
847 }
848
849 /* [real world] get_config unimplemented if there's only one */
850 if (!realworld || udev->descriptor.bNumConfigurations != 1) {
851 int expected = udev->actconfig->desc.bConfigurationValue;
852
853 /* [9.4.2] get_configuration always works
854 * ... although some cheap devices (like one TI Hub I've got)
855 * won't return config descriptors except before set_config.
856 */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200857 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 USB_REQ_GET_CONFIGURATION,
859 USB_DIR_IN | USB_RECIP_DEVICE,
860 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200861 if (retval != 1 || dev->buf[0] != expected) {
David Brownell28ffd792008-04-25 18:51:10 -0700862 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n",
David Brownellff7c79e2005-04-22 13:17:00 -0700863 retval, dev->buf[0], expected);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864 return (retval < 0) ? retval : -EDOM;
865 }
866 }
867
868 /* there's always [9.4.3] a device descriptor [9.6.1] */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200869 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
Huang Ruif55055b2013-10-21 23:15:30 +0800870 dev->buf, sizeof(udev->descriptor));
871 if (retval != sizeof(udev->descriptor)) {
David Brownell28ffd792008-04-25 18:51:10 -0700872 dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873 return (retval < 0) ? retval : -EDOM;
874 }
875
Huang Rui9d3bd762013-10-28 23:31:32 +0800876 /*
877 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
878 * 3.0 spec
879 */
Huang Ruif6250992013-11-13 22:35:13 +0800880 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) {
Huang Rui82f92672013-10-30 11:27:38 +0800881 struct usb_bos_descriptor *bos = NULL;
882 struct usb_dev_cap_header *header = NULL;
883 unsigned total, num, length;
884 u8 *buf;
885
Huang Rui9d3bd762013-10-28 23:31:32 +0800886 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
887 sizeof(*udev->bos->desc));
888 if (retval != sizeof(*udev->bos->desc)) {
889 dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
890 return (retval < 0) ? retval : -EDOM;
891 }
Huang Rui82f92672013-10-30 11:27:38 +0800892
893 bos = (struct usb_bos_descriptor *)dev->buf;
894 total = le16_to_cpu(bos->wTotalLength);
895 num = bos->bNumDeviceCaps;
896
897 if (total > TBUF_SIZE)
898 total = TBUF_SIZE;
899
900 /*
901 * get generic device-level capability descriptors [9.6.2]
902 * in USB 3.0 spec
903 */
904 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
905 total);
906 if (retval != total) {
907 dev_err(&iface->dev, "bos descriptor set --> %d\n",
908 retval);
909 return (retval < 0) ? retval : -EDOM;
910 }
911
912 length = sizeof(*udev->bos->desc);
913 buf = dev->buf;
914 for (i = 0; i < num; i++) {
915 buf += length;
916 if (buf + sizeof(struct usb_dev_cap_header) >
917 dev->buf + total)
918 break;
919
920 header = (struct usb_dev_cap_header *)buf;
921 length = header->bLength;
922
923 if (header->bDescriptorType !=
924 USB_DT_DEVICE_CAPABILITY) {
925 dev_warn(&udev->dev, "not device capability descriptor, skip\n");
926 continue;
927 }
928
929 switch (header->bDevCapabilityType) {
930 case USB_CAP_TYPE_EXT:
931 if (buf + USB_DT_USB_EXT_CAP_SIZE >
932 dev->buf + total ||
933 !is_good_ext(dev, buf)) {
934 dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
935 return -EDOM;
936 }
937 break;
Huang Ruib8fef792013-10-30 11:27:39 +0800938 case USB_SS_CAP_TYPE:
939 if (buf + USB_DT_USB_SS_CAP_SIZE >
940 dev->buf + total ||
941 !is_good_ss_cap(dev, buf)) {
942 dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
943 return -EDOM;
944 }
945 break;
Huang Rui8e292172013-10-30 11:27:40 +0800946 case CONTAINER_ID_TYPE:
947 if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
948 dev->buf + total ||
949 !is_good_con_id(dev, buf)) {
950 dev_err(&iface->dev, "bogus container id descriptor\n");
951 return -EDOM;
952 }
953 break;
Huang Rui82f92672013-10-30 11:27:38 +0800954 default:
955 break;
956 }
957 }
Huang Rui9d3bd762013-10-28 23:31:32 +0800958 }
959
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960 /* there's always [9.4.3] at least one config descriptor [9.6.3] */
961 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200962 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963 dev->buf, TBUF_SIZE);
David Brownell28ffd792008-04-25 18:51:10 -0700964 if (!is_good_config(dev, retval)) {
965 dev_err(&iface->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 "config [%d] descriptor --> %d\n",
967 i, retval);
968 return (retval < 0) ? retval : -EDOM;
969 }
970
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200971 /* FIXME cross-checking udev->config[i] to make sure usbcore
972 * parsed it right (etc) would be good testing paranoia
973 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974 }
975
976 /* and sometimes [9.2.6.6] speed dependent descriptors */
977 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200978 struct usb_qualifier_descriptor *d = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979
980 /* device qualifier [9.6.2] */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200981 retval = usb_get_descriptor(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982 USB_DT_DEVICE_QUALIFIER, 0, dev->buf,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200983 sizeof(struct usb_qualifier_descriptor));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984 if (retval == -EPIPE) {
985 if (udev->speed == USB_SPEED_HIGH) {
David Brownell28ffd792008-04-25 18:51:10 -0700986 dev_err(&iface->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987 "hs dev qualifier --> %d\n",
988 retval);
989 return (retval < 0) ? retval : -EDOM;
990 }
991 /* usb2.0 but not high-speed capable; fine */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +0200992 } else if (retval != sizeof(struct usb_qualifier_descriptor)) {
David Brownell28ffd792008-04-25 18:51:10 -0700993 dev_err(&iface->dev, "dev qualifier --> %d\n", retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 return (retval < 0) ? retval : -EDOM;
995 } else
996 d = (struct usb_qualifier_descriptor *) dev->buf;
997
998 /* might not have [9.6.2] any other-speed configs [9.6.4] */
999 if (d) {
1000 unsigned max = d->bNumConfigurations;
1001 for (i = 0; i < max; i++) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001002 retval = usb_get_descriptor(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003 USB_DT_OTHER_SPEED_CONFIG, i,
1004 dev->buf, TBUF_SIZE);
David Brownell28ffd792008-04-25 18:51:10 -07001005 if (!is_good_config(dev, retval)) {
1006 dev_err(&iface->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007 "other speed config --> %d\n",
1008 retval);
1009 return (retval < 0) ? retval : -EDOM;
1010 }
1011 }
1012 }
1013 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001014 /* FIXME fetch strings from at least the device descriptor */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015
1016 /* [9.4.5] get_status always works */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001017 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
Alan Stern15b73362013-07-30 15:35:40 -04001018 if (retval) {
David Brownell28ffd792008-04-25 18:51:10 -07001019 dev_err(&iface->dev, "get dev status --> %d\n", retval);
Alan Stern15b73362013-07-30 15:35:40 -04001020 return retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021 }
1022
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001023 /* FIXME configuration.bmAttributes says if we could try to set/clear
1024 * the device's remote wakeup feature ... if we can, test that here
1025 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001026
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001027 retval = usb_get_status(udev, USB_RECIP_INTERFACE,
1028 iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
Alan Stern15b73362013-07-30 15:35:40 -04001029 if (retval) {
David Brownell28ffd792008-04-25 18:51:10 -07001030 dev_err(&iface->dev, "get interface status --> %d\n", retval);
Alan Stern15b73362013-07-30 15:35:40 -04001031 return retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001033 /* FIXME get status for each endpoint in the interface */
David Brownell28ffd792008-04-25 18:51:10 -07001034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 return 0;
1036}
1037
1038/*-------------------------------------------------------------------------*/
1039
1040/* use ch9 requests to test whether:
1041 * (a) queues work for control, keeping N subtests queued and
1042 * active (auto-resubmit) for M loops through the queue.
1043 * (b) protocol stalls (control-only) will autorecover.
1044 * it's not like bulk/intr; no halt clearing.
1045 * (c) short control reads are reported and handled.
1046 * (d) queues are always processed in-order
1047 */
1048
1049struct ctrl_ctx {
1050 spinlock_t lock;
1051 struct usbtest_dev *dev;
1052 struct completion complete;
1053 unsigned count;
1054 unsigned pending;
1055 int status;
1056 struct urb **urb;
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08001057 struct usbtest_param_32 *param;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058 int last;
1059};
1060
Huang Ruic952a8b2013-11-04 21:11:53 +08001061#define NUM_SUBCASES 16 /* how many test subcases here? */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062
1063struct subcase {
1064 struct usb_ctrlrequest setup;
1065 int number;
1066 int expected;
1067};
1068
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001069static void ctrl_complete(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001070{
1071 struct ctrl_ctx *ctx = urb->context;
1072 struct usb_ctrlrequest *reqp;
1073 struct subcase *subcase;
1074 int status = urb->status;
1075
1076 reqp = (struct usb_ctrlrequest *)urb->setup_packet;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001077 subcase = container_of(reqp, struct subcase, setup);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001079 spin_lock(&ctx->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080 ctx->count--;
1081 ctx->pending--;
1082
1083 /* queue must transfer and complete in fifo order, unless
1084 * usb_unlink_urb() is used to unlink something not at the
1085 * physical queue head (not tested).
1086 */
1087 if (subcase->number > 0) {
1088 if ((subcase->number - ctx->last) != 1) {
David Brownell28ffd792008-04-25 18:51:10 -07001089 ERROR(ctx->dev,
1090 "subcase %d completed out of order, last %d\n",
1091 subcase->number, ctx->last);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092 status = -EDOM;
1093 ctx->last = subcase->number;
1094 goto error;
1095 }
1096 }
1097 ctx->last = subcase->number;
1098
1099 /* succeed or fault in only one way? */
1100 if (status == subcase->expected)
1101 status = 0;
1102
1103 /* async unlink for cleanup? */
1104 else if (status != -ECONNRESET) {
1105
1106 /* some faults are allowed, not required */
1107 if (subcase->expected > 0 && (
Greg Kroah-Hartman59d99782007-07-18 10:58:02 -07001108 ((status == -subcase->expected /* happened */
1109 || status == 0)))) /* didn't */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 status = 0;
1111 /* sometimes more than one fault is allowed */
1112 else if (subcase->number == 12 && status == -EPIPE)
1113 status = 0;
1114 else
David Brownell28ffd792008-04-25 18:51:10 -07001115 ERROR(ctx->dev, "subtest %d error, status %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001116 subcase->number, status);
1117 }
1118
1119 /* unexpected status codes mean errors; ideally, in hardware */
1120 if (status) {
1121error:
1122 if (ctx->status == 0) {
1123 int i;
1124
1125 ctx->status = status;
David Brownell28ffd792008-04-25 18:51:10 -07001126 ERROR(ctx->dev, "control queue %02x.%02x, err %d, "
1127 "%d left, subcase %d, len %d/%d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001128 reqp->bRequestType, reqp->bRequest,
David Brownell28ffd792008-04-25 18:51:10 -07001129 status, ctx->count, subcase->number,
1130 urb->actual_length,
1131 urb->transfer_buffer_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001132
1133 /* FIXME this "unlink everything" exit route should
1134 * be a separate test case.
1135 */
1136
1137 /* unlink whatever's still pending */
1138 for (i = 1; i < ctx->param->sglen; i++) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001139 struct urb *u = ctx->urb[
1140 (i + subcase->number)
1141 % ctx->param->sglen];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142
1143 if (u == urb || !u->dev)
1144 continue;
Franck Bui-Huucaa2a122006-05-15 19:23:53 +02001145 spin_unlock(&ctx->lock);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001146 status = usb_unlink_urb(u);
Franck Bui-Huucaa2a122006-05-15 19:23:53 +02001147 spin_lock(&ctx->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001148 switch (status) {
1149 case -EINPROGRESS:
1150 case -EBUSY:
1151 case -EIDRM:
1152 continue;
1153 default:
David Brownell28ffd792008-04-25 18:51:10 -07001154 ERROR(ctx->dev, "urb unlink --> %d\n",
1155 status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156 }
1157 }
1158 status = ctx->status;
1159 }
1160 }
1161
1162 /* resubmit if we need to, else mark this as done */
1163 if ((status == 0) && (ctx->pending < ctx->count)) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001164 status = usb_submit_urb(urb, GFP_ATOMIC);
1165 if (status != 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001166 ERROR(ctx->dev,
1167 "can't resubmit ctrl %02x.%02x, err %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168 reqp->bRequestType, reqp->bRequest, status);
1169 urb->dev = NULL;
1170 } else
1171 ctx->pending++;
1172 } else
1173 urb->dev = NULL;
David Brownell28ffd792008-04-25 18:51:10 -07001174
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175 /* signal completion when nothing's queued */
1176 if (ctx->pending == 0)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001177 complete(&ctx->complete);
1178 spin_unlock(&ctx->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179}
1180
1181static int
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08001182test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183{
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001184 struct usb_device *udev = testdev_to_usbdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001185 struct urb **urb;
1186 struct ctrl_ctx context;
1187 int i;
1188
Xi Wange65cdfa2012-04-09 15:48:55 -04001189 if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen)
1190 return -EOPNOTSUPP;
1191
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001192 spin_lock_init(&context.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193 context.dev = dev;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001194 init_completion(&context.complete);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 context.count = param->sglen * param->iterations;
1196 context.pending = 0;
1197 context.status = -ENOMEM;
1198 context.param = param;
1199 context.last = -1;
1200
1201 /* allocate and init the urbs we'll queue.
1202 * as with bulk/intr sglists, sglen is the queue depth; it also
1203 * controls which subtests run (more tests than sglen) or rerun.
1204 */
Christoph Lametere94b1762006-12-06 20:33:17 -08001205 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206 if (!urb)
1207 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208 for (i = 0; i < param->sglen; i++) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001209 int pipe = usb_rcvctrlpipe(udev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210 unsigned len;
1211 struct urb *u;
1212 struct usb_ctrlrequest req;
1213 struct subcase *reqp;
Marcin Slusarz6def7552008-05-12 20:17:25 +02001214
1215 /* sign of this variable means:
1216 * -: tested code must return this (negative) error code
1217 * +: tested code may return this (negative too) error code
1218 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001219 int expected = 0;
1220
1221 /* requests here are mostly expected to succeed on any
1222 * device, but some are chosen to trigger protocol stalls
1223 * or short reads.
1224 */
Huang Ruif55055b2013-10-21 23:15:30 +08001225 memset(&req, 0, sizeof(req));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226 req.bRequest = USB_REQ_GET_DESCRIPTOR;
1227 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1228
1229 switch (i % NUM_SUBCASES) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001230 case 0: /* get device descriptor */
1231 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8);
1232 len = sizeof(struct usb_device_descriptor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001233 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001234 case 1: /* get first config descriptor (only) */
1235 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1236 len = sizeof(struct usb_config_descriptor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001237 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001238 case 2: /* get altsetting (OFTEN STALLS) */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 req.bRequest = USB_REQ_GET_INTERFACE;
1240 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001241 /* index = 0 means first interface */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242 len = 1;
1243 expected = EPIPE;
1244 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001245 case 3: /* get interface status */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001246 req.bRequest = USB_REQ_GET_STATUS;
1247 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001248 /* interface 0 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249 len = 2;
1250 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001251 case 4: /* get device status */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252 req.bRequest = USB_REQ_GET_STATUS;
1253 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
1254 len = 2;
1255 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001256 case 5: /* get device qualifier (MAY STALL) */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001257 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001258 len = sizeof(struct usb_qualifier_descriptor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 if (udev->speed != USB_SPEED_HIGH)
1260 expected = EPIPE;
1261 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001262 case 6: /* get first config descriptor, plus interface */
1263 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1264 len = sizeof(struct usb_config_descriptor);
1265 len += sizeof(struct usb_interface_descriptor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001266 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001267 case 7: /* get interface descriptor (ALWAYS STALLS) */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001269 /* interface == 0 */
1270 len = sizeof(struct usb_interface_descriptor);
David Brownell28ffd792008-04-25 18:51:10 -07001271 expected = -EPIPE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001273 /* NOTE: two consecutive stalls in the queue here.
1274 * that tests fault recovery a bit more aggressively. */
1275 case 8: /* clear endpoint halt (MAY STALL) */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 req.bRequest = USB_REQ_CLEAR_FEATURE;
1277 req.bRequestType = USB_RECIP_ENDPOINT;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001278 /* wValue 0 == ep halt */
1279 /* wIndex 0 == ep0 (shouldn't halt!) */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001280 len = 0;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001281 pipe = usb_sndctrlpipe(udev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001282 expected = EPIPE;
1283 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001284 case 9: /* get endpoint status */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001285 req.bRequest = USB_REQ_GET_STATUS;
1286 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001287 /* endpoint 0 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288 len = 2;
1289 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001290 case 10: /* trigger short read (EREMOTEIO) */
1291 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292 len = 1024;
1293 expected = -EREMOTEIO;
1294 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001295 /* NOTE: two consecutive _different_ faults in the queue. */
1296 case 11: /* get endpoint descriptor (ALWAYS STALLS) */
1297 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8);
1298 /* endpoint == 0 */
1299 len = sizeof(struct usb_interface_descriptor);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300 expected = EPIPE;
1301 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001302 /* NOTE: sometimes even a third fault in the queue! */
1303 case 12: /* get string 0 descriptor (MAY STALL) */
1304 req.wValue = cpu_to_le16(USB_DT_STRING << 8);
1305 /* string == 0, for language IDs */
1306 len = sizeof(struct usb_interface_descriptor);
1307 /* may succeed when > 4 languages */
1308 expected = EREMOTEIO; /* or EPIPE, if no strings */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001309 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001310 case 13: /* short read, resembling case 10 */
1311 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0);
1312 /* last data packet "should" be DATA1, not DATA0 */
Paul Zimmerman6a23ccd2012-04-16 14:19:07 -07001313 if (udev->speed == USB_SPEED_SUPER)
1314 len = 1024 - 512;
1315 else
1316 len = 1024 - udev->descriptor.bMaxPacketSize0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317 expected = -EREMOTEIO;
1318 break;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001319 case 14: /* short read; try to fill the last packet */
1320 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0);
David Brownell28ffd792008-04-25 18:51:10 -07001321 /* device descriptor size == 18 bytes */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322 len = udev->descriptor.bMaxPacketSize0;
Sebastian Andrzej Siewior67e7d642011-04-14 16:17:21 +02001323 if (udev->speed == USB_SPEED_SUPER)
1324 len = 512;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001325 switch (len) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001326 case 8:
1327 len = 24;
1328 break;
1329 case 16:
1330 len = 32;
1331 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 }
1333 expected = -EREMOTEIO;
1334 break;
Huang Ruic952a8b2013-11-04 21:11:53 +08001335 case 15:
1336 req.wValue = cpu_to_le16(USB_DT_BOS << 8);
1337 if (udev->bos)
1338 len = le16_to_cpu(udev->bos->desc->wTotalLength);
1339 else
1340 len = sizeof(struct usb_bos_descriptor);
Sarah Sharp8cf43282013-12-13 13:44:17 -08001341 if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201)
Huang Ruic952a8b2013-11-04 21:11:53 +08001342 expected = -EPIPE;
1343 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344 default:
David Brownell28ffd792008-04-25 18:51:10 -07001345 ERROR(dev, "bogus number of ctrl queue testcases!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 context.status = -EINVAL;
1347 goto cleanup;
1348 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001349 req.wLength = cpu_to_le16(len);
Amit Virdi457a0952014-08-22 14:36:37 +05301350 urb[i] = u = simple_alloc_urb(udev, pipe, len, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351 if (!u)
1352 goto cleanup;
1353
Huang Ruif55055b2013-10-21 23:15:30 +08001354 reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355 if (!reqp)
1356 goto cleanup;
1357 reqp->setup = req;
1358 reqp->number = i % NUM_SUBCASES;
1359 reqp->expected = expected;
1360 u->setup_packet = (char *) &reqp->setup;
1361
1362 u->context = &context;
1363 u->complete = ctrl_complete;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 }
1365
1366 /* queue the urbs */
1367 context.urb = urb;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001368 spin_lock_irq(&context.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001369 for (i = 0; i < param->sglen; i++) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001370 context.status = usb_submit_urb(urb[i], GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 if (context.status != 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001372 ERROR(dev, "can't submit urb[%d], status %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001373 i, context.status);
1374 context.count = context.pending;
1375 break;
1376 }
1377 context.pending++;
1378 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001379 spin_unlock_irq(&context.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380
1381 /* FIXME set timer and time out; provide a disconnect hook */
1382
1383 /* wait for the last one to complete */
1384 if (context.pending > 0)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001385 wait_for_completion(&context.complete);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386
1387cleanup:
1388 for (i = 0; i < param->sglen; i++) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001389 if (!urb[i])
Linus Torvalds1da177e2005-04-16 15:20:36 -07001390 continue;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001391 urb[i]->dev = udev;
Alan Stern0ede76f2010-03-05 15:10:17 -05001392 kfree(urb[i]->setup_packet);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001393 simple_free_urb(urb[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001395 kfree(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396 return context.status;
1397}
1398#undef NUM_SUBCASES
1399
1400
1401/*-------------------------------------------------------------------------*/
1402
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001403static void unlink1_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404{
1405 int status = urb->status;
1406
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001407 /* we "know" -EPIPE (stall) never happens */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001408 if (!status)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001409 status = usb_submit_urb(urb, GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410 if (status) {
1411 urb->status = status;
Ming Leicdc97792008-02-24 18:41:47 +08001412 complete(urb->context);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413 }
1414}
1415
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001416static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417{
1418 struct urb *urb;
1419 struct completion completion;
1420 int retval = 0;
1421
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001422 init_completion(&completion);
Amit Virdi457a0952014-08-22 14:36:37 +05301423 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424 if (!urb)
1425 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001426 urb->context = &completion;
1427 urb->complete = unlink1_callback;
1428
Huang Ruie4d58f52014-05-26 10:55:36 +08001429 if (usb_pipeout(urb->pipe)) {
1430 simple_fill_buf(urb);
1431 urb->transfer_flags |= URB_ZERO_PACKET;
1432 }
1433
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434 /* keep the endpoint busy. there are lots of hc/hcd-internal
1435 * states, and testing should get to all of them over time.
1436 *
1437 * FIXME want additional tests for when endpoint is STALLing
1438 * due to errors, or is just NAKing requests.
1439 */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001440 retval = usb_submit_urb(urb, GFP_KERNEL);
1441 if (retval != 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001442 dev_err(&dev->intf->dev, "submit fail %d\n", retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001443 return retval;
1444 }
1445
1446 /* unlinking that should always work. variable delay tests more
1447 * hcd states and code paths, even with little other system load.
1448 */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001449 msleep(jiffies % (2 * INTERRUPT_RATE));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001450 if (async) {
Martin Fuzzey3b6c0232009-06-04 23:20:38 +02001451 while (!completion_done(&completion)) {
1452 retval = usb_unlink_urb(urb);
1453
Huang Ruia7683eb2014-05-22 18:06:14 +08001454 if (retval == 0 && usb_pipein(urb->pipe))
1455 retval = simple_check_buf(dev, urb);
1456
Martin Fuzzey3b6c0232009-06-04 23:20:38 +02001457 switch (retval) {
1458 case -EBUSY:
1459 case -EIDRM:
1460 /* we can't unlink urbs while they're completing
1461 * or if they've completed, and we haven't
1462 * resubmitted. "normal" drivers would prevent
1463 * resubmission, but since we're testing unlink
1464 * paths, we can't.
1465 */
1466 ERROR(dev, "unlink retry\n");
1467 continue;
1468 case 0:
1469 case -EINPROGRESS:
1470 break;
1471
1472 default:
1473 dev_err(&dev->intf->dev,
1474 "unlink fail %d\n", retval);
1475 return retval;
1476 }
1477
1478 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001479 }
1480 } else
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001481 usb_kill_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001483 wait_for_completion(&completion);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001484 retval = urb->status;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001485 simple_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001486
1487 if (async)
1488 return (retval == -ECONNRESET) ? 0 : retval - 1000;
1489 else
1490 return (retval == -ENOENT || retval == -EPERM) ?
1491 0 : retval - 2000;
1492}
1493
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001494static int unlink_simple(struct usbtest_dev *dev, int pipe, int len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001495{
1496 int retval = 0;
1497
1498 /* test sync and async paths */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001499 retval = unlink1(dev, pipe, len, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500 if (!retval)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001501 retval = unlink1(dev, pipe, len, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 return retval;
1503}
1504
1505/*-------------------------------------------------------------------------*/
1506
Alan Stern869410f2011-04-14 11:21:04 -04001507struct queued_ctx {
1508 struct completion complete;
1509 atomic_t pending;
1510 unsigned num;
1511 int status;
1512 struct urb **urbs;
1513};
1514
1515static void unlink_queued_callback(struct urb *urb)
1516{
1517 int status = urb->status;
1518 struct queued_ctx *ctx = urb->context;
1519
1520 if (ctx->status)
1521 goto done;
1522 if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) {
1523 if (status == -ECONNRESET)
1524 goto done;
1525 /* What error should we report if the URB completed normally? */
1526 }
1527 if (status != 0)
1528 ctx->status = status;
1529
1530 done:
1531 if (atomic_dec_and_test(&ctx->pending))
1532 complete(&ctx->complete);
1533}
1534
1535static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num,
1536 unsigned size)
1537{
1538 struct queued_ctx ctx;
1539 struct usb_device *udev = testdev_to_usbdev(dev);
1540 void *buf;
1541 dma_addr_t buf_dma;
1542 int i;
1543 int retval = -ENOMEM;
1544
1545 init_completion(&ctx.complete);
1546 atomic_set(&ctx.pending, 1); /* One more than the actual value */
1547 ctx.num = num;
1548 ctx.status = 0;
1549
1550 buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma);
1551 if (!buf)
1552 return retval;
1553 memset(buf, 0, size);
1554
1555 /* Allocate and init the urbs we'll queue */
1556 ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL);
1557 if (!ctx.urbs)
1558 goto free_buf;
1559 for (i = 0; i < num; i++) {
1560 ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
1561 if (!ctx.urbs[i])
1562 goto free_urbs;
1563 usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size,
1564 unlink_queued_callback, &ctx);
1565 ctx.urbs[i]->transfer_dma = buf_dma;
1566 ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
Huang Ruie4d58f52014-05-26 10:55:36 +08001567
1568 if (usb_pipeout(ctx.urbs[i]->pipe)) {
1569 simple_fill_buf(ctx.urbs[i]);
1570 ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET;
1571 }
Alan Stern869410f2011-04-14 11:21:04 -04001572 }
1573
1574 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */
1575 for (i = 0; i < num; i++) {
1576 atomic_inc(&ctx.pending);
1577 retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL);
1578 if (retval != 0) {
1579 dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n",
1580 i, retval);
1581 atomic_dec(&ctx.pending);
1582 ctx.status = retval;
1583 break;
1584 }
1585 }
1586 if (i == num) {
1587 usb_unlink_urb(ctx.urbs[num - 4]);
1588 usb_unlink_urb(ctx.urbs[num - 2]);
1589 } else {
1590 while (--i >= 0)
1591 usb_unlink_urb(ctx.urbs[i]);
1592 }
1593
1594 if (atomic_dec_and_test(&ctx.pending)) /* The extra count */
1595 complete(&ctx.complete);
1596 wait_for_completion(&ctx.complete);
1597 retval = ctx.status;
1598
1599 free_urbs:
1600 for (i = 0; i < num; i++)
1601 usb_free_urb(ctx.urbs[i]);
1602 kfree(ctx.urbs);
1603 free_buf:
1604 usb_free_coherent(udev, size, buf, buf_dma);
1605 return retval;
1606}
1607
1608/*-------------------------------------------------------------------------*/
1609
David Brownell28ffd792008-04-25 18:51:10 -07001610static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611{
1612 int retval;
1613 u16 status;
1614
1615 /* shouldn't look or act halted */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001616 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617 if (retval < 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001618 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
1619 ep, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001620 return retval;
1621 }
1622 if (status != 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001623 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624 return -EINVAL;
1625 }
David Brownell28ffd792008-04-25 18:51:10 -07001626 retval = simple_io(tdev, urb, 1, 0, 0, __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627 if (retval != 0)
1628 return -EINVAL;
1629 return 0;
1630}
1631
David Brownell28ffd792008-04-25 18:51:10 -07001632static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001633{
1634 int retval;
1635 u16 status;
1636
1637 /* should look and act halted */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001638 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001639 if (retval < 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001640 ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
1641 ep, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001642 return retval;
1643 }
1644 if (status != 1) {
David Brownell28ffd792008-04-25 18:51:10 -07001645 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001646 return -EINVAL;
1647 }
David Brownell28ffd792008-04-25 18:51:10 -07001648 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001649 if (retval != -EPIPE)
1650 return -EINVAL;
David Brownell28ffd792008-04-25 18:51:10 -07001651 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001652 if (retval != -EPIPE)
1653 return -EINVAL;
1654 return 0;
1655}
1656
David Brownell28ffd792008-04-25 18:51:10 -07001657static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658{
1659 int retval;
1660
1661 /* shouldn't look or act halted now */
David Brownell28ffd792008-04-25 18:51:10 -07001662 retval = verify_not_halted(tdev, ep, urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663 if (retval < 0)
1664 return retval;
1665
1666 /* set halt (protocol test only), verify it worked */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001667 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001668 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT,
1669 USB_ENDPOINT_HALT, ep,
1670 NULL, 0, USB_CTRL_SET_TIMEOUT);
1671 if (retval < 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001672 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001673 return retval;
1674 }
David Brownell28ffd792008-04-25 18:51:10 -07001675 retval = verify_halted(tdev, ep, urb);
Roger Quadros824d7522013-12-18 15:40:11 +05301676 if (retval < 0) {
1677 int ret;
1678
1679 /* clear halt anyways, else further tests will fail */
1680 ret = usb_clear_halt(urb->dev, urb->pipe);
1681 if (ret)
1682 ERROR(tdev, "ep %02x couldn't clear halt, %d\n",
1683 ep, ret);
1684
Linus Torvalds1da177e2005-04-16 15:20:36 -07001685 return retval;
Roger Quadros824d7522013-12-18 15:40:11 +05301686 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001687
1688 /* clear halt (tests API + protocol), verify it worked */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001689 retval = usb_clear_halt(urb->dev, urb->pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690 if (retval < 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001691 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001692 return retval;
1693 }
David Brownell28ffd792008-04-25 18:51:10 -07001694 retval = verify_not_halted(tdev, ep, urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695 if (retval < 0)
1696 return retval;
1697
1698 /* NOTE: could also verify SET_INTERFACE clear halts ... */
1699
1700 return 0;
1701}
1702
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001703static int halt_simple(struct usbtest_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704{
Paul Zimmerman6a23ccd2012-04-16 14:19:07 -07001705 int ep;
1706 int retval = 0;
1707 struct urb *urb;
1708 struct usb_device *udev = testdev_to_usbdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709
Paul Zimmerman6a23ccd2012-04-16 14:19:07 -07001710 if (udev->speed == USB_SPEED_SUPER)
Amit Virdi457a0952014-08-22 14:36:37 +05301711 urb = simple_alloc_urb(udev, 0, 1024, 0);
Paul Zimmerman6a23ccd2012-04-16 14:19:07 -07001712 else
Amit Virdi457a0952014-08-22 14:36:37 +05301713 urb = simple_alloc_urb(udev, 0, 512, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714 if (urb == NULL)
1715 return -ENOMEM;
1716
1717 if (dev->in_pipe) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001718 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001719 urb->pipe = dev->in_pipe;
David Brownell28ffd792008-04-25 18:51:10 -07001720 retval = test_halt(dev, ep, urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721 if (retval < 0)
1722 goto done;
1723 }
1724
1725 if (dev->out_pipe) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001726 ep = usb_pipeendpoint(dev->out_pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 urb->pipe = dev->out_pipe;
David Brownell28ffd792008-04-25 18:51:10 -07001728 retval = test_halt(dev, ep, urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 }
1730done:
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001731 simple_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732 return retval;
1733}
1734
1735/*-------------------------------------------------------------------------*/
1736
1737/* Control OUT tests use the vendor control requests from Intel's
1738 * USB 2.0 compliance test device: write a buffer, read it back.
1739 *
1740 * Intel's spec only _requires_ that it work for one packet, which
1741 * is pretty weak. Some HCDs place limits here; most devices will
1742 * need to be able to handle more than one OUT data packet. We'll
1743 * try whatever we're told to try.
1744 */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001745static int ctrl_out(struct usbtest_dev *dev,
Martin Fuzzey084fb202011-01-16 19:17:11 +01001746 unsigned count, unsigned length, unsigned vary, unsigned offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001747{
Orjan Fribergf54fa842006-08-08 23:31:40 -07001748 unsigned i, j, len;
1749 int retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001750 u8 *buf;
1751 char *what = "?";
1752 struct usb_device *udev;
Orjan Fribergf54fa842006-08-08 23:31:40 -07001753
David Brownellff7c79e2005-04-22 13:17:00 -07001754 if (length < 1 || length > 0xffff || vary >= length)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001755 return -EINVAL;
1756
Martin Fuzzey084fb202011-01-16 19:17:11 +01001757 buf = kmalloc(length + offset, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001758 if (!buf)
1759 return -ENOMEM;
1760
Martin Fuzzey084fb202011-01-16 19:17:11 +01001761 buf += offset;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001762 udev = testdev_to_usbdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763 len = length;
1764 retval = 0;
1765
1766 /* NOTE: hardware might well act differently if we pushed it
1767 * with lots back-to-back queued requests.
1768 */
1769 for (i = 0; i < count; i++) {
1770 /* write patterned data */
1771 for (j = 0; j < len; j++)
Peter Chen169900f2015-09-01 09:48:00 +08001772 buf[j] = (u8)(i + j);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001773 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR,
1775 0, 0, buf, len, USB_CTRL_SET_TIMEOUT);
1776 if (retval != len) {
1777 what = "write";
David Brownellff7c79e2005-04-22 13:17:00 -07001778 if (retval >= 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001779 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n",
David Brownellff7c79e2005-04-22 13:17:00 -07001780 retval, len);
1781 retval = -EBADMSG;
1782 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783 break;
1784 }
1785
1786 /* read it back -- assuming nothing intervened!! */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001787 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788 0x5c, USB_DIR_IN|USB_TYPE_VENDOR,
1789 0, 0, buf, len, USB_CTRL_GET_TIMEOUT);
1790 if (retval != len) {
1791 what = "read";
David Brownellff7c79e2005-04-22 13:17:00 -07001792 if (retval >= 0) {
David Brownell28ffd792008-04-25 18:51:10 -07001793 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n",
David Brownellff7c79e2005-04-22 13:17:00 -07001794 retval, len);
1795 retval = -EBADMSG;
1796 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797 break;
1798 }
1799
1800 /* fail if we can't verify */
1801 for (j = 0; j < len; j++) {
Peter Chen169900f2015-09-01 09:48:00 +08001802 if (buf[j] != (u8)(i + j)) {
David Brownell28ffd792008-04-25 18:51:10 -07001803 ERROR(dev, "ctrl_out, byte %d is %d not %d\n",
Peter Chen169900f2015-09-01 09:48:00 +08001804 j, buf[j], (u8)(i + j));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001805 retval = -EBADMSG;
1806 break;
1807 }
1808 }
1809 if (retval < 0) {
1810 what = "verify";
1811 break;
1812 }
1813
1814 len += vary;
David Brownellff7c79e2005-04-22 13:17:00 -07001815
1816 /* [real world] the "zero bytes IN" case isn't really used.
Joe Perchesdc0d5c12007-12-17 11:40:18 -08001817 * hardware can easily trip up in this weird case, since its
David Brownellff7c79e2005-04-22 13:17:00 -07001818 * status stage is IN, not OUT like other ep0in transfers.
1819 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001820 if (len > length)
David Brownellff7c79e2005-04-22 13:17:00 -07001821 len = realworld ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001822 }
1823
1824 if (retval < 0)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001825 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826 what, retval, i);
1827
Martin Fuzzey084fb202011-01-16 19:17:11 +01001828 kfree(buf - offset);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001829 return retval;
1830}
1831
1832/*-------------------------------------------------------------------------*/
1833
Peter Chen145f48c2015-10-13 15:18:21 +08001834/* ISO/BULK tests ... mimics common usage
Linus Torvalds1da177e2005-04-16 15:20:36 -07001835 * - buffer length is split into N packets (mostly maxpacket sized)
1836 * - multi-buffers according to sglen
1837 */
1838
Peter Chen145f48c2015-10-13 15:18:21 +08001839struct transfer_context {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001840 unsigned count;
1841 unsigned pending;
1842 spinlock_t lock;
1843 struct completion done;
Alan Stern9da21502006-05-22 16:47:13 -04001844 int submit_error;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001845 unsigned long errors;
Alan Stern9da21502006-05-22 16:47:13 -04001846 unsigned long packet_count;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847 struct usbtest_dev *dev;
Peter Chen145f48c2015-10-13 15:18:21 +08001848 bool is_iso;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849};
1850
Peter Chen145f48c2015-10-13 15:18:21 +08001851static void complicated_callback(struct urb *urb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001852{
Peter Chen145f48c2015-10-13 15:18:21 +08001853 struct transfer_context *ctx = urb->context;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001854
1855 spin_lock(&ctx->lock);
1856 ctx->count--;
1857
Alan Stern9da21502006-05-22 16:47:13 -04001858 ctx->packet_count += urb->number_of_packets;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001859 if (urb->error_count > 0)
1860 ctx->errors += urb->error_count;
Alan Stern9da21502006-05-22 16:47:13 -04001861 else if (urb->status != 0)
Peter Chen145f48c2015-10-13 15:18:21 +08001862 ctx->errors += (ctx->is_iso ? urb->number_of_packets : 1);
Martin Fuzzey40aed522010-10-01 00:20:48 +02001863 else if (urb->actual_length != urb->transfer_buffer_length)
1864 ctx->errors++;
Martin Fuzzey084fb202011-01-16 19:17:11 +01001865 else if (check_guard_bytes(ctx->dev, urb) != 0)
1866 ctx->errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001867
Alan Stern9da21502006-05-22 16:47:13 -04001868 if (urb->status == 0 && ctx->count > (ctx->pending - 1)
1869 && !ctx->submit_error) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001870 int status = usb_submit_urb(urb, GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001871 switch (status) {
1872 case 0:
1873 goto done;
1874 default:
David Brownell28ffd792008-04-25 18:51:10 -07001875 dev_err(&ctx->dev->intf->dev,
Peter Chenc7c78062015-11-18 17:40:23 +08001876 "resubmit err %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001877 status);
1878 /* FALLTHROUGH */
1879 case -ENODEV: /* disconnected */
Alan Stern9da21502006-05-22 16:47:13 -04001880 case -ESHUTDOWN: /* endpoint disabled */
1881 ctx->submit_error = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001882 break;
1883 }
1884 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001885
1886 ctx->pending--;
1887 if (ctx->pending == 0) {
1888 if (ctx->errors)
David Brownell28ffd792008-04-25 18:51:10 -07001889 dev_err(&ctx->dev->intf->dev,
Peter Chenc7c78062015-11-18 17:40:23 +08001890 "during the test, %lu errors out of %lu\n",
Alan Stern9da21502006-05-22 16:47:13 -04001891 ctx->errors, ctx->packet_count);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001892 complete(&ctx->done);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001893 }
1894done:
1895 spin_unlock(&ctx->lock);
1896}
1897
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001898static struct urb *iso_alloc_urb(
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899 struct usb_device *udev,
1900 int pipe,
1901 struct usb_endpoint_descriptor *desc,
Martin Fuzzey084fb202011-01-16 19:17:11 +01001902 long bytes,
1903 unsigned offset
Linus Torvalds1da177e2005-04-16 15:20:36 -07001904)
1905{
1906 struct urb *urb;
1907 unsigned i, maxp, packets;
1908
1909 if (bytes < 0 || !desc)
1910 return NULL;
Kuninori Morimoto29cc8892011-08-23 03:12:03 -07001911 maxp = 0x7ff & usb_endpoint_maxp(desc);
1912 maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11));
Julia Lawalldfa5ec72008-03-04 15:25:11 -08001913 packets = DIV_ROUND_UP(bytes, maxp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001914
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001915 urb = usb_alloc_urb(packets, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916 if (!urb)
1917 return urb;
1918 urb->dev = udev;
1919 urb->pipe = pipe;
1920
1921 urb->number_of_packets = packets;
1922 urb->transfer_buffer_length = bytes;
Martin Fuzzey084fb202011-01-16 19:17:11 +01001923 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset,
1924 GFP_KERNEL,
1925 &urb->transfer_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001926 if (!urb->transfer_buffer) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001927 usb_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001928 return NULL;
1929 }
Martin Fuzzey084fb202011-01-16 19:17:11 +01001930 if (offset) {
1931 memset(urb->transfer_buffer, GUARD_BYTE, offset);
1932 urb->transfer_buffer += offset;
1933 urb->transfer_dma += offset;
1934 }
1935 /* For inbound transfers use guard byte so that test fails if
1936 data not correctly copied */
1937 memset(urb->transfer_buffer,
1938 usb_pipein(urb->pipe) ? GUARD_BYTE : 0,
1939 bytes);
1940
Linus Torvalds1da177e2005-04-16 15:20:36 -07001941 for (i = 0; i < packets; i++) {
1942 /* here, only the last packet will be short */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001943 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001944 bytes -= urb->iso_frame_desc[i].length;
1945
1946 urb->iso_frame_desc[i].offset = maxp * i;
1947 }
1948
Peter Chen145f48c2015-10-13 15:18:21 +08001949 urb->complete = complicated_callback;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001950 /* urb->context = SET BY CALLER */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001951 urb->interval = 1 << (desc->bInterval - 1);
1952 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
1953 return urb;
1954}
1955
1956static int
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08001957test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param,
Martin Fuzzey084fb202011-01-16 19:17:11 +01001958 int pipe, struct usb_endpoint_descriptor *desc, unsigned offset)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001959{
Peter Chen145f48c2015-10-13 15:18:21 +08001960 struct transfer_context context;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001961 struct usb_device *udev;
1962 unsigned i;
1963 unsigned long packets = 0;
Alan Stern9da21502006-05-22 16:47:13 -04001964 int status = 0;
Peter Chen41d3c0b2015-09-01 09:47:58 +08001965 struct urb *urbs[param->sglen];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001966
Huang Ruif55055b2013-10-21 23:15:30 +08001967 memset(&context, 0, sizeof(context));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001968 context.count = param->iterations * param->sglen;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001969 context.dev = dev;
Peter Chen145f48c2015-10-13 15:18:21 +08001970 context.is_iso = !!desc;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001971 init_completion(&context.done);
1972 spin_lock_init(&context.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001973
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001974 udev = testdev_to_usbdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001975
1976 for (i = 0; i < param->sglen; i++) {
Peter Chen145f48c2015-10-13 15:18:21 +08001977 if (context.is_iso)
1978 urbs[i] = iso_alloc_urb(udev, pipe, desc,
Martin Fuzzey084fb202011-01-16 19:17:11 +01001979 param->length, offset);
Peter Chen145f48c2015-10-13 15:18:21 +08001980 else
1981 urbs[i] = complicated_alloc_urb(udev, pipe,
1982 param->length, 0);
1983
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001984 if (!urbs[i]) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001985 status = -ENOMEM;
1986 goto fail;
1987 }
1988 packets += urbs[i]->number_of_packets;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02001989 urbs[i]->context = &context;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001990 }
1991 packets *= param->iterations;
Peter Chen145f48c2015-10-13 15:18:21 +08001992
1993 if (context.is_iso) {
1994 dev_info(&dev->intf->dev,
1995 "iso period %d %sframes, wMaxPacket %d, transactions: %d\n",
1996 1 << (desc->bInterval - 1),
1997 (udev->speed == USB_SPEED_HIGH) ? "micro" : "",
1998 usb_endpoint_maxp(desc) & 0x7ff,
1999 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)));
2000
2001 dev_info(&dev->intf->dev,
2002 "total %lu msec (%lu packets)\n",
2003 (packets * (1 << (desc->bInterval - 1)))
2004 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1),
2005 packets);
2006 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002007
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002008 spin_lock_irq(&context.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002009 for (i = 0; i < param->sglen; i++) {
Alan Stern9da21502006-05-22 16:47:13 -04002010 ++context.pending;
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002011 status = usb_submit_urb(urbs[i], GFP_ATOMIC);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002012 if (status < 0) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002013 ERROR(dev, "submit iso[%d], error %d\n", i, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002014 if (i == 0) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002015 spin_unlock_irq(&context.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002016 goto fail;
2017 }
2018
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002019 simple_free_urb(urbs[i]);
Ming Leie10e1be2010-08-02 22:09:01 +08002020 urbs[i] = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002021 context.pending--;
Alan Stern9da21502006-05-22 16:47:13 -04002022 context.submit_error = 1;
2023 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002024 }
2025 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002026 spin_unlock_irq(&context.lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002027
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002028 wait_for_completion(&context.done);
Alan Stern9da21502006-05-22 16:47:13 -04002029
Ming Leie10e1be2010-08-02 22:09:01 +08002030 for (i = 0; i < param->sglen; i++) {
2031 if (urbs[i])
2032 simple_free_urb(urbs[i]);
2033 }
Alan Stern9da21502006-05-22 16:47:13 -04002034 /*
2035 * Isochronous transfers are expected to fail sometimes. As an
2036 * arbitrary limit, we will report an error if any submissions
2037 * fail or if the transfer failure rate is > 10%.
2038 */
2039 if (status != 0)
2040 ;
2041 else if (context.submit_error)
2042 status = -EACCES;
Peter Chen145f48c2015-10-13 15:18:21 +08002043 else if (context.errors >
2044 (context.is_iso ? context.packet_count / 10 : 0))
Alan Stern9da21502006-05-22 16:47:13 -04002045 status = -EIO;
2046 return status;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002047
2048fail:
2049 for (i = 0; i < param->sglen; i++) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002050 if (urbs[i])
2051 simple_free_urb(urbs[i]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052 }
2053 return status;
2054}
2055
Martin Fuzzey084fb202011-01-16 19:17:11 +01002056static int test_unaligned_bulk(
2057 struct usbtest_dev *tdev,
2058 int pipe,
2059 unsigned length,
2060 int iterations,
2061 unsigned transfer_flags,
2062 const char *label)
2063{
2064 int retval;
Peter Chen145f48c2015-10-13 15:18:21 +08002065 struct urb *urb = usbtest_alloc_urb(testdev_to_usbdev(tdev),
2066 pipe, length, transfer_flags, 1, 0, simple_callback);
Martin Fuzzey084fb202011-01-16 19:17:11 +01002067
2068 if (!urb)
2069 return -ENOMEM;
2070
2071 retval = simple_io(tdev, urb, iterations, 0, 0, label);
2072 simple_free_urb(urb);
2073 return retval;
2074}
2075
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08002076/* Run tests. */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002077static int
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08002078usbtest_do_ioctl(struct usb_interface *intf, struct usbtest_param_32 *param)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002079{
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002080 struct usbtest_dev *dev = usb_get_intfdata(intf);
2081 struct usb_device *udev = testdev_to_usbdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002082 struct urb *urb;
2083 struct scatterlist *sg;
2084 struct usb_sg_request req;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002085 unsigned i;
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08002086 int retval = -EOPNOTSUPP;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002087
roel kluin8aafdf62008-10-21 00:36:44 -04002088 if (param->iterations <= 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002089 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002090 /*
2091 * Just a bunch of test cases that every HCD is expected to handle.
2092 *
2093 * Some may need specific firmware, though it'd be good to have
2094 * one firmware image to handle all the test cases.
2095 *
2096 * FIXME add more tests! cancel requests, verify the data, control
2097 * queueing, concurrent read+write threads, and so on.
2098 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 switch (param->test_num) {
2100
2101 case 0:
David Brownell28ffd792008-04-25 18:51:10 -07002102 dev_info(&intf->dev, "TEST 0: NOP\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103 retval = 0;
2104 break;
2105
2106 /* Simple non-queued bulk I/O tests */
2107 case 1:
2108 if (dev->out_pipe == 0)
2109 break;
David Brownell28ffd792008-04-25 18:51:10 -07002110 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111 "TEST 1: write %d bytes %u times\n",
2112 param->length, param->iterations);
Amit Virdi457a0952014-08-22 14:36:37 +05302113 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002114 if (!urb) {
2115 retval = -ENOMEM;
2116 break;
2117 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002118 /* FIRMWARE: bulk sink (maybe accepts short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002119 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1");
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002120 simple_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002121 break;
2122 case 2:
2123 if (dev->in_pipe == 0)
2124 break;
David Brownell28ffd792008-04-25 18:51:10 -07002125 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002126 "TEST 2: read %d bytes %u times\n",
2127 param->length, param->iterations);
Amit Virdi457a0952014-08-22 14:36:37 +05302128 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002129 if (!urb) {
2130 retval = -ENOMEM;
2131 break;
2132 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002133 /* FIRMWARE: bulk source (maybe generates short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002134 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2");
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002135 simple_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002136 break;
2137 case 3:
2138 if (dev->out_pipe == 0 || param->vary == 0)
2139 break;
David Brownell28ffd792008-04-25 18:51:10 -07002140 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141 "TEST 3: write/%d 0..%d bytes %u times\n",
2142 param->vary, param->length, param->iterations);
Amit Virdi457a0952014-08-22 14:36:37 +05302143 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002144 if (!urb) {
2145 retval = -ENOMEM;
2146 break;
2147 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002148 /* FIRMWARE: bulk sink (maybe accepts short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002149 retval = simple_io(dev, urb, param->iterations, param->vary,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150 0, "test3");
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002151 simple_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002152 break;
2153 case 4:
2154 if (dev->in_pipe == 0 || param->vary == 0)
2155 break;
David Brownell28ffd792008-04-25 18:51:10 -07002156 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 "TEST 4: read/%d 0..%d bytes %u times\n",
2158 param->vary, param->length, param->iterations);
Amit Virdi457a0952014-08-22 14:36:37 +05302159 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002160 if (!urb) {
2161 retval = -ENOMEM;
2162 break;
2163 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002164 /* FIRMWARE: bulk source (maybe generates short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002165 retval = simple_io(dev, urb, param->iterations, param->vary,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002166 0, "test4");
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002167 simple_free_urb(urb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002168 break;
2169
2170 /* Queued bulk I/O tests */
2171 case 5:
2172 if (dev->out_pipe == 0 || param->sglen == 0)
2173 break;
David Brownell28ffd792008-04-25 18:51:10 -07002174 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175 "TEST 5: write %d sglists %d entries of %d bytes\n",
2176 param->iterations,
2177 param->sglen, param->length);
Alan Sternb9a6e8e2015-09-01 09:48:01 +08002178 sg = alloc_sglist(param->sglen, param->length,
2179 0, dev, dev->out_pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002180 if (!sg) {
2181 retval = -ENOMEM;
2182 break;
2183 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002184 /* FIRMWARE: bulk sink (maybe accepts short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002185 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186 &req, sg, param->sglen);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002187 free_sglist(sg, param->sglen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002188 break;
2189
2190 case 6:
2191 if (dev->in_pipe == 0 || param->sglen == 0)
2192 break;
David Brownell28ffd792008-04-25 18:51:10 -07002193 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194 "TEST 6: read %d sglists %d entries of %d bytes\n",
2195 param->iterations,
2196 param->sglen, param->length);
Alan Sternb9a6e8e2015-09-01 09:48:01 +08002197 sg = alloc_sglist(param->sglen, param->length,
2198 0, dev, dev->in_pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199 if (!sg) {
2200 retval = -ENOMEM;
2201 break;
2202 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002203 /* FIRMWARE: bulk source (maybe generates short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002204 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205 &req, sg, param->sglen);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002206 free_sglist(sg, param->sglen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207 break;
2208 case 7:
2209 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0)
2210 break;
David Brownell28ffd792008-04-25 18:51:10 -07002211 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n",
2213 param->vary, param->iterations,
2214 param->sglen, param->length);
Alan Sternb9a6e8e2015-09-01 09:48:01 +08002215 sg = alloc_sglist(param->sglen, param->length,
2216 param->vary, dev, dev->out_pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217 if (!sg) {
2218 retval = -ENOMEM;
2219 break;
2220 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002221 /* FIRMWARE: bulk sink (maybe accepts short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002222 retval = perform_sglist(dev, param->iterations, dev->out_pipe,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223 &req, sg, param->sglen);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002224 free_sglist(sg, param->sglen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002225 break;
2226 case 8:
2227 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0)
2228 break;
David Brownell28ffd792008-04-25 18:51:10 -07002229 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002230 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n",
2231 param->vary, param->iterations,
2232 param->sglen, param->length);
Alan Sternb9a6e8e2015-09-01 09:48:01 +08002233 sg = alloc_sglist(param->sglen, param->length,
2234 param->vary, dev, dev->in_pipe);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002235 if (!sg) {
2236 retval = -ENOMEM;
2237 break;
2238 }
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002239 /* FIRMWARE: bulk source (maybe generates short writes) */
David Brownell28ffd792008-04-25 18:51:10 -07002240 retval = perform_sglist(dev, param->iterations, dev->in_pipe,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002241 &req, sg, param->sglen);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002242 free_sglist(sg, param->sglen);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002243 break;
2244
2245 /* non-queued sanity tests for control (chapter 9 subset) */
2246 case 9:
2247 retval = 0;
David Brownell28ffd792008-04-25 18:51:10 -07002248 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002249 "TEST 9: ch9 (subset) control tests, %d times\n",
2250 param->iterations);
2251 for (i = param->iterations; retval == 0 && i--; /* NOP */)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002252 retval = ch9_postconfig(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002253 if (retval)
David Brownell28ffd792008-04-25 18:51:10 -07002254 dev_err(&intf->dev, "ch9 subset failed, "
2255 "iterations left %d\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002256 break;
2257
2258 /* queued control messaging */
2259 case 10:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002260 retval = 0;
David Brownell28ffd792008-04-25 18:51:10 -07002261 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002262 "TEST 10: queue %d control calls, %d times\n",
2263 param->sglen,
2264 param->iterations);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002265 retval = test_ctrl_queue(dev, param);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002266 break;
2267
2268 /* simple non-queued unlinks (ring with one urb) */
2269 case 11:
2270 if (dev->in_pipe == 0 || !param->length)
2271 break;
2272 retval = 0;
David Brownell28ffd792008-04-25 18:51:10 -07002273 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002274 param->iterations, param->length);
2275 for (i = param->iterations; retval == 0 && i--; /* NOP */)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002276 retval = unlink_simple(dev, dev->in_pipe,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002277 param->length);
2278 if (retval)
David Brownell28ffd792008-04-25 18:51:10 -07002279 dev_err(&intf->dev, "unlink reads failed %d, "
Linus Torvalds1da177e2005-04-16 15:20:36 -07002280 "iterations left %d\n", retval, i);
2281 break;
2282 case 12:
2283 if (dev->out_pipe == 0 || !param->length)
2284 break;
2285 retval = 0;
David Brownell28ffd792008-04-25 18:51:10 -07002286 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287 param->iterations, param->length);
2288 for (i = param->iterations; retval == 0 && i--; /* NOP */)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002289 retval = unlink_simple(dev, dev->out_pipe,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002290 param->length);
2291 if (retval)
David Brownell28ffd792008-04-25 18:51:10 -07002292 dev_err(&intf->dev, "unlink writes failed %d, "
Linus Torvalds1da177e2005-04-16 15:20:36 -07002293 "iterations left %d\n", retval, i);
2294 break;
2295
2296 /* ep halt tests */
2297 case 13:
2298 if (dev->out_pipe == 0 && dev->in_pipe == 0)
2299 break;
2300 retval = 0;
David Brownell28ffd792008-04-25 18:51:10 -07002301 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002302 param->iterations);
2303 for (i = param->iterations; retval == 0 && i--; /* NOP */)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002304 retval = halt_simple(dev);
David Brownell28ffd792008-04-25 18:51:10 -07002305
Linus Torvalds1da177e2005-04-16 15:20:36 -07002306 if (retval)
David Brownell28ffd792008-04-25 18:51:10 -07002307 ERROR(dev, "halts failed, iterations left %d\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002308 break;
2309
2310 /* control write tests */
2311 case 14:
2312 if (!dev->info->ctrl_out)
2313 break;
David Brownell28ffd792008-04-25 18:51:10 -07002314 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n",
David Brownellff7c79e2005-04-22 13:17:00 -07002315 param->iterations,
2316 realworld ? 1 : 0, param->length,
2317 param->vary);
David Brownell28ffd792008-04-25 18:51:10 -07002318 retval = ctrl_out(dev, param->iterations,
Martin Fuzzey084fb202011-01-16 19:17:11 +01002319 param->length, param->vary, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002320 break;
2321
2322 /* iso write tests */
2323 case 15:
2324 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2325 break;
David Brownell28ffd792008-04-25 18:51:10 -07002326 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002327 "TEST 15: write %d iso, %d entries of %d bytes\n",
2328 param->iterations,
2329 param->sglen, param->length);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002330 /* FIRMWARE: iso sink */
Peter Chen145f48c2015-10-13 15:18:21 +08002331 retval = test_queue(dev, param,
Martin Fuzzey084fb202011-01-16 19:17:11 +01002332 dev->out_iso_pipe, dev->iso_out, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002333 break;
2334
2335 /* iso read tests */
2336 case 16:
2337 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2338 break;
David Brownell28ffd792008-04-25 18:51:10 -07002339 dev_info(&intf->dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002340 "TEST 16: read %d iso, %d entries of %d bytes\n",
2341 param->iterations,
2342 param->sglen, param->length);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002343 /* FIRMWARE: iso source */
Peter Chen145f48c2015-10-13 15:18:21 +08002344 retval = test_queue(dev, param,
Martin Fuzzey084fb202011-01-16 19:17:11 +01002345 dev->in_iso_pipe, dev->iso_in, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346 break;
2347
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002348 /* FIXME scatterlist cancel (needs helper thread) */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002349
Martin Fuzzey084fb202011-01-16 19:17:11 +01002350 /* Tests for bulk I/O using DMA mapping by core and odd address */
2351 case 17:
2352 if (dev->out_pipe == 0)
2353 break;
2354 dev_info(&intf->dev,
2355 "TEST 17: write odd addr %d bytes %u times core map\n",
2356 param->length, param->iterations);
2357
2358 retval = test_unaligned_bulk(
2359 dev, dev->out_pipe,
2360 param->length, param->iterations,
2361 0, "test17");
2362 break;
2363
2364 case 18:
2365 if (dev->in_pipe == 0)
2366 break;
2367 dev_info(&intf->dev,
2368 "TEST 18: read odd addr %d bytes %u times core map\n",
2369 param->length, param->iterations);
2370
2371 retval = test_unaligned_bulk(
2372 dev, dev->in_pipe,
2373 param->length, param->iterations,
2374 0, "test18");
2375 break;
2376
2377 /* Tests for bulk I/O using premapped coherent buffer and odd address */
2378 case 19:
2379 if (dev->out_pipe == 0)
2380 break;
2381 dev_info(&intf->dev,
2382 "TEST 19: write odd addr %d bytes %u times premapped\n",
2383 param->length, param->iterations);
2384
2385 retval = test_unaligned_bulk(
2386 dev, dev->out_pipe,
2387 param->length, param->iterations,
2388 URB_NO_TRANSFER_DMA_MAP, "test19");
2389 break;
2390
2391 case 20:
2392 if (dev->in_pipe == 0)
2393 break;
2394 dev_info(&intf->dev,
2395 "TEST 20: read odd addr %d bytes %u times premapped\n",
2396 param->length, param->iterations);
2397
2398 retval = test_unaligned_bulk(
2399 dev, dev->in_pipe,
2400 param->length, param->iterations,
2401 URB_NO_TRANSFER_DMA_MAP, "test20");
2402 break;
2403
2404 /* control write tests with unaligned buffer */
2405 case 21:
2406 if (!dev->info->ctrl_out)
2407 break;
2408 dev_info(&intf->dev,
2409 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n",
2410 param->iterations,
2411 realworld ? 1 : 0, param->length,
2412 param->vary);
2413 retval = ctrl_out(dev, param->iterations,
2414 param->length, param->vary, 1);
2415 break;
2416
2417 /* unaligned iso tests */
2418 case 22:
2419 if (dev->out_iso_pipe == 0 || param->sglen == 0)
2420 break;
2421 dev_info(&intf->dev,
2422 "TEST 22: write %d iso odd, %d entries of %d bytes\n",
2423 param->iterations,
2424 param->sglen, param->length);
Peter Chen145f48c2015-10-13 15:18:21 +08002425 retval = test_queue(dev, param,
Martin Fuzzey084fb202011-01-16 19:17:11 +01002426 dev->out_iso_pipe, dev->iso_out, 1);
2427 break;
2428
2429 case 23:
2430 if (dev->in_iso_pipe == 0 || param->sglen == 0)
2431 break;
2432 dev_info(&intf->dev,
2433 "TEST 23: read %d iso odd, %d entries of %d bytes\n",
2434 param->iterations,
2435 param->sglen, param->length);
Peter Chen145f48c2015-10-13 15:18:21 +08002436 retval = test_queue(dev, param,
Martin Fuzzey084fb202011-01-16 19:17:11 +01002437 dev->in_iso_pipe, dev->iso_in, 1);
2438 break;
2439
Alan Stern869410f2011-04-14 11:21:04 -04002440 /* unlink URBs from a bulk-OUT queue */
2441 case 24:
2442 if (dev->out_pipe == 0 || !param->length || param->sglen < 4)
2443 break;
2444 retval = 0;
Alan Stern2cb50002013-01-02 13:58:18 -05002445 dev_info(&intf->dev, "TEST 24: unlink from %d queues of "
Alan Stern869410f2011-04-14 11:21:04 -04002446 "%d %d-byte writes\n",
2447 param->iterations, param->sglen, param->length);
2448 for (i = param->iterations; retval == 0 && i > 0; --i) {
2449 retval = unlink_queued(dev, dev->out_pipe,
2450 param->sglen, param->length);
2451 if (retval) {
2452 dev_err(&intf->dev,
2453 "unlink queued writes failed %d, "
2454 "iterations left %d\n", retval, i);
2455 break;
2456 }
2457 }
2458 break;
2459
Amit Virdi457a0952014-08-22 14:36:37 +05302460 /* Simple non-queued interrupt I/O tests */
2461 case 25:
2462 if (dev->out_int_pipe == 0)
2463 break;
2464 dev_info(&intf->dev,
2465 "TEST 25: write %d bytes %u times\n",
2466 param->length, param->iterations);
2467 urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length,
2468 dev->int_out->bInterval);
2469 if (!urb) {
2470 retval = -ENOMEM;
2471 break;
2472 }
2473 /* FIRMWARE: interrupt sink (maybe accepts short writes) */
2474 retval = simple_io(dev, urb, param->iterations, 0, 0, "test25");
2475 simple_free_urb(urb);
2476 break;
2477 case 26:
2478 if (dev->in_int_pipe == 0)
2479 break;
2480 dev_info(&intf->dev,
2481 "TEST 26: read %d bytes %u times\n",
2482 param->length, param->iterations);
2483 urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length,
2484 dev->int_in->bInterval);
2485 if (!urb) {
2486 retval = -ENOMEM;
2487 break;
2488 }
2489 /* FIRMWARE: interrupt source (maybe generates short writes) */
2490 retval = simple_io(dev, urb, param->iterations, 0, 0, "test26");
2491 simple_free_urb(urb);
2492 break;
Peter Chen145f48c2015-10-13 15:18:21 +08002493 case 27:
2494 /* We do performance test, so ignore data compare */
2495 if (dev->out_pipe == 0 || param->sglen == 0 || pattern != 0)
2496 break;
2497 dev_info(&intf->dev,
2498 "TEST 27: bulk write %dMbytes\n", (param->iterations *
2499 param->sglen * param->length) / (1024 * 1024));
2500 retval = test_queue(dev, param,
2501 dev->out_pipe, NULL, 0);
2502 break;
2503 case 28:
2504 if (dev->in_pipe == 0 || param->sglen == 0 || pattern != 0)
2505 break;
2506 dev_info(&intf->dev,
2507 "TEST 28: bulk read %dMbytes\n", (param->iterations *
2508 param->sglen * param->length) / (1024 * 1024));
2509 retval = test_queue(dev, param,
2510 dev->in_pipe, NULL, 0);
2511 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002512 }
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08002513 return retval;
2514}
2515
2516/*-------------------------------------------------------------------------*/
2517
2518/* We only have this one interface to user space, through usbfs.
2519 * User mode code can scan usbfs to find N different devices (maybe on
2520 * different busses) to use when testing, and allocate one thread per
2521 * test. So discovery is simplified, and we have no device naming issues.
2522 *
2523 * Don't use these only as stress/load tests. Use them along with with
2524 * other USB bus activity: plugging, unplugging, mousing, mp3 playback,
2525 * video capture, and so on. Run different tests at different times, in
2526 * different sequences. Nothing here should interact with other devices,
2527 * except indirectly by consuming USB bandwidth and CPU resources for test
2528 * threads and request completion. But the only way to know that for sure
2529 * is to test when HC queues are in use by many devices.
2530 *
2531 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(),
2532 * it locks out usbcore in certain code paths. Notably, if you disconnect
2533 * the device-under-test, hub_wq will wait block forever waiting for the
2534 * ioctl to complete ... so that usb_disconnect() can abort the pending
2535 * urbs and then call usbtest_disconnect(). To abort a test, you're best
2536 * off just killing the userspace task and waiting for it to exit.
2537 */
2538
2539static int
2540usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
2541{
2542
2543 struct usbtest_dev *dev = usb_get_intfdata(intf);
2544 struct usbtest_param_64 *param_64 = buf;
2545 struct usbtest_param_32 temp;
2546 struct usbtest_param_32 *param_32 = buf;
2547 struct timespec64 start;
2548 struct timespec64 end;
2549 struct timespec64 duration;
2550 int retval = -EOPNOTSUPP;
2551
2552 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */
2553
2554 pattern = mod_pattern;
2555
2556 if (mutex_lock_interruptible(&dev->lock))
2557 return -ERESTARTSYS;
2558
2559 /* FIXME: What if a system sleep starts while a test is running? */
2560
2561 /* some devices, like ez-usb default devices, need a non-default
2562 * altsetting to have any active endpoints. some tests change
2563 * altsettings; force a default so most tests don't need to check.
2564 */
2565 if (dev->info->alt >= 0) {
2566 if (intf->altsetting->desc.bInterfaceNumber) {
2567 retval = -ENODEV;
2568 goto free_mutex;
2569 }
2570 retval = set_altsetting(dev, dev->info->alt);
2571 if (retval) {
2572 dev_err(&intf->dev,
2573 "set altsetting to %d failed, %d\n",
2574 dev->info->alt, retval);
2575 goto free_mutex;
2576 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07002577 }
Deepa Dinamani18fc4eb2015-11-04 15:29:11 -08002578
2579 switch (code) {
2580 case USBTEST_REQUEST_64:
2581 temp.test_num = param_64->test_num;
2582 temp.iterations = param_64->iterations;
2583 temp.length = param_64->length;
2584 temp.sglen = param_64->sglen;
2585 temp.vary = param_64->vary;
2586 param_32 = &temp;
2587 break;
2588
2589 case USBTEST_REQUEST_32:
2590 break;
2591
2592 default:
2593 retval = -EOPNOTSUPP;
2594 goto free_mutex;
2595 }
2596
2597 ktime_get_ts64(&start);
2598
2599 retval = usbtest_do_ioctl(intf, param_32);
2600 if (retval)
2601 goto free_mutex;
2602
2603 ktime_get_ts64(&end);
2604
2605 duration = timespec64_sub(end, start);
2606
2607 temp.duration_sec = duration.tv_sec;
2608 temp.duration_usec = duration.tv_nsec/NSEC_PER_USEC;
2609
2610 switch (code) {
2611 case USBTEST_REQUEST_32:
2612 param_32->duration_sec = temp.duration_sec;
2613 param_32->duration_usec = temp.duration_usec;
2614 break;
2615
2616 case USBTEST_REQUEST_64:
2617 param_64->duration_sec = temp.duration_sec;
2618 param_64->duration_usec = temp.duration_usec;
2619 break;
2620 }
2621
2622free_mutex:
Matthias Kaehlcke1cfab022007-12-13 16:15:33 -08002623 mutex_unlock(&dev->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002624 return retval;
2625}
2626
2627/*-------------------------------------------------------------------------*/
2628
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002629static unsigned force_interrupt;
2630module_param(force_interrupt, uint, 0);
2631MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002632
2633#ifdef GENERIC
2634static unsigned short vendor;
2635module_param(vendor, ushort, 0);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002636MODULE_PARM_DESC(vendor, "vendor code (from usb-if)");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637
2638static unsigned short product;
2639module_param(product, ushort, 0);
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002640MODULE_PARM_DESC(product, "product code (from vendor)");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002641#endif
2642
2643static int
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002644usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002645{
2646 struct usb_device *udev;
2647 struct usbtest_dev *dev;
2648 struct usbtest_info *info;
2649 char *rtest, *wtest;
2650 char *irtest, *iwtest;
Amit Virdi457a0952014-08-22 14:36:37 +05302651 char *intrtest, *intwtest;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002652
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002653 udev = interface_to_usbdev(intf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002654
2655#ifdef GENERIC
2656 /* specify devices by module parameters? */
2657 if (id->match_flags == 0) {
2658 /* vendor match required, product match optional */
2659 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor)
2660 return -ENODEV;
2661 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product)
2662 return -ENODEV;
David Brownell28ffd792008-04-25 18:51:10 -07002663 dev_info(&intf->dev, "matched module params, "
2664 "vend=0x%04x prod=0x%04x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07002665 le16_to_cpu(udev->descriptor.idVendor),
2666 le16_to_cpu(udev->descriptor.idProduct));
2667 }
2668#endif
2669
Christoph Lametere94b1762006-12-06 20:33:17 -08002670 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002671 if (!dev)
2672 return -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002673 info = (struct usbtest_info *) id->driver_info;
2674 dev->info = info;
Matthias Kaehlcke1cfab022007-12-13 16:15:33 -08002675 mutex_init(&dev->lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002676
2677 dev->intf = intf;
2678
2679 /* cacheline-aligned scratch for i/o */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002680 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL);
2681 if (dev->buf == NULL) {
2682 kfree(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002683 return -ENOMEM;
2684 }
2685
2686 /* NOTE this doesn't yet test the handful of difference that are
2687 * visible with high speed interrupts: bigger maxpacket (1K) and
2688 * "high bandwidth" modes (up to 3 packets/uframe).
2689 */
2690 rtest = wtest = "";
2691 irtest = iwtest = "";
Amit Virdi457a0952014-08-22 14:36:37 +05302692 intrtest = intwtest = "";
Linus Torvalds1da177e2005-04-16 15:20:36 -07002693 if (force_interrupt || udev->speed == USB_SPEED_LOW) {
2694 if (info->ep_in) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002695 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002696 rtest = " intr-in";
2697 }
2698 if (info->ep_out) {
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002699 dev->out_pipe = usb_sndintpipe(udev, info->ep_out);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002700 wtest = " intr-out";
2701 }
2702 } else {
Alan Sternd0b46522013-01-30 16:38:11 -05002703 if (override_alt >= 0 || info->autoconf) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002704 int status;
2705
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002706 status = get_endpoints(dev, intf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002707 if (status < 0) {
Arjan van de Venb6c63932008-07-25 01:45:52 -07002708 WARNING(dev, "couldn't get endpoints, %d\n",
David Brownell28ffd792008-04-25 18:51:10 -07002709 status);
Julia Lawallf4a728d2012-03-25 21:08:32 +02002710 kfree(dev->buf);
2711 kfree(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002712 return status;
2713 }
2714 /* may find bulk or ISO pipes */
2715 } else {
2716 if (info->ep_in)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002717 dev->in_pipe = usb_rcvbulkpipe(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002718 info->ep_in);
2719 if (info->ep_out)
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002720 dev->out_pipe = usb_sndbulkpipe(udev,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002721 info->ep_out);
2722 }
2723 if (dev->in_pipe)
2724 rtest = " bulk-in";
2725 if (dev->out_pipe)
2726 wtest = " bulk-out";
2727 if (dev->in_iso_pipe)
2728 irtest = " iso-in";
2729 if (dev->out_iso_pipe)
2730 iwtest = " iso-out";
Amit Virdi457a0952014-08-22 14:36:37 +05302731 if (dev->in_int_pipe)
2732 intrtest = " int-in";
2733 if (dev->out_int_pipe)
2734 intwtest = " int-out";
Linus Torvalds1da177e2005-04-16 15:20:36 -07002735 }
2736
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002737 usb_set_intfdata(intf, dev);
2738 dev_info(&intf->dev, "%s\n", info->name);
Amit Virdi457a0952014-08-22 14:36:37 +05302739 dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n",
Michal Nazarewicze538dfd2011-08-30 17:11:19 +02002740 usb_speed_string(udev->speed),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002741 info->ctrl_out ? " in/out" : "",
2742 rtest, wtest,
2743 irtest, iwtest,
Amit Virdi457a0952014-08-22 14:36:37 +05302744 intrtest, intwtest,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002745 info->alt >= 0 ? " (+alt)" : "");
2746 return 0;
2747}
2748
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002749static int usbtest_suspend(struct usb_interface *intf, pm_message_t message)
David Brownellff7c79e2005-04-22 13:17:00 -07002750{
David Brownellff7c79e2005-04-22 13:17:00 -07002751 return 0;
2752}
2753
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002754static int usbtest_resume(struct usb_interface *intf)
David Brownellff7c79e2005-04-22 13:17:00 -07002755{
David Brownellff7c79e2005-04-22 13:17:00 -07002756 return 0;
2757}
2758
2759
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002760static void usbtest_disconnect(struct usb_interface *intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002761{
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002762 struct usbtest_dev *dev = usb_get_intfdata(intf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002763
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002764 usb_set_intfdata(intf, NULL);
2765 dev_dbg(&intf->dev, "disconnect\n");
2766 kfree(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002767}
2768
2769/* Basic testing only needs a device that can source or sink bulk traffic.
2770 * Any device can test control transfers (default with GENERIC binding).
2771 *
2772 * Several entries work with the default EP0 implementation that's built
2773 * into EZ-USB chips. There's a default vendor ID which can be overridden
2774 * by (very) small config EEPROMS, but otherwise all these devices act
2775 * identically until firmware is loaded: only EP0 works. It turns out
2776 * to be easy to make other endpoints work, without modifying that EP0
2777 * behavior. For now, we expect that kind of firmware.
2778 */
2779
2780/* an21xx or fx versions of ez-usb */
2781static struct usbtest_info ez1_info = {
2782 .name = "EZ-USB device",
2783 .ep_in = 2,
2784 .ep_out = 2,
2785 .alt = 1,
2786};
2787
2788/* fx2 version of ez-usb */
2789static struct usbtest_info ez2_info = {
2790 .name = "FX2 device",
2791 .ep_in = 6,
2792 .ep_out = 2,
2793 .alt = 1,
2794};
2795
2796/* ezusb family device with dedicated usb test firmware,
2797 */
2798static struct usbtest_info fw_info = {
2799 .name = "usb test device",
2800 .ep_in = 2,
2801 .ep_out = 2,
2802 .alt = 1,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002803 .autoconf = 1, /* iso and ctrl_out need autoconf */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002804 .ctrl_out = 1,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002805 .iso = 1, /* iso_ep's are #8 in/out */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002806};
2807
2808/* peripheral running Linux and 'zero.c' test firmware, or
2809 * its user-mode cousin. different versions of this use
2810 * different hardware with the same vendor/product codes.
2811 * host side MUST rely on the endpoint descriptors.
2812 */
2813static struct usbtest_info gz_info = {
2814 .name = "Linux gadget zero",
2815 .autoconf = 1,
2816 .ctrl_out = 1,
Boyan Nedeltchev4b85c622012-11-12 13:06:06 +02002817 .iso = 1,
Amit Virdi457a0952014-08-22 14:36:37 +05302818 .intr = 1,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002819 .alt = 0,
2820};
2821
2822static struct usbtest_info um_info = {
2823 .name = "Linux user mode test driver",
2824 .autoconf = 1,
2825 .alt = -1,
2826};
2827
2828static struct usbtest_info um2_info = {
2829 .name = "Linux user mode ISO test driver",
2830 .autoconf = 1,
2831 .iso = 1,
2832 .alt = -1,
2833};
2834
2835#ifdef IBOT2
2836/* this is a nice source of high speed bulk data;
2837 * uses an FX2, with firmware provided in the device
2838 */
2839static struct usbtest_info ibot2_info = {
2840 .name = "iBOT2 webcam",
2841 .ep_in = 2,
2842 .alt = -1,
2843};
2844#endif
2845
2846#ifdef GENERIC
2847/* we can use any device to test control traffic */
2848static struct usbtest_info generic_info = {
2849 .name = "Generic USB device",
2850 .alt = -1,
2851};
2852#endif
2853
Linus Torvalds1da177e2005-04-16 15:20:36 -07002854
Németh Márton33b9e162010-01-10 15:34:45 +01002855static const struct usb_device_id id_table[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002856
Linus Torvalds1da177e2005-04-16 15:20:36 -07002857 /*-------------------------------------------------------------*/
2858
2859 /* EZ-USB devices which download firmware to replace (or in our
2860 * case augment) the default device implementation.
2861 */
2862
2863 /* generic EZ-USB FX controller */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002864 { USB_DEVICE(0x0547, 0x2235),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002865 .driver_info = (unsigned long) &ez1_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002866 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002867
2868 /* CY3671 development board with EZ-USB FX */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002869 { USB_DEVICE(0x0547, 0x0080),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002870 .driver_info = (unsigned long) &ez1_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002871 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002872
2873 /* generic EZ-USB FX2 controller (or development board) */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002874 { USB_DEVICE(0x04b4, 0x8613),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002875 .driver_info = (unsigned long) &ez2_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002876 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002877
2878 /* re-enumerated usb test device firmware */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002879 { USB_DEVICE(0xfff0, 0xfff0),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002880 .driver_info = (unsigned long) &fw_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002881 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002882
2883 /* "Gadget Zero" firmware runs under Linux */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002884 { USB_DEVICE(0x0525, 0xa4a0),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002885 .driver_info = (unsigned long) &gz_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002886 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002887
2888 /* so does a user-mode variant */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002889 { USB_DEVICE(0x0525, 0xa4a4),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002890 .driver_info = (unsigned long) &um_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002891 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002892
2893 /* ... and a user-mode variant that talks iso */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002894 { USB_DEVICE(0x0525, 0xa4a3),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002895 .driver_info = (unsigned long) &um2_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002896 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002897
2898#ifdef KEYSPAN_19Qi
2899 /* Keyspan 19qi uses an21xx (original EZ-USB) */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002900 /* this does not coexist with the real Keyspan 19qi driver! */
2901 { USB_DEVICE(0x06cd, 0x010b),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002902 .driver_info = (unsigned long) &ez1_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002903 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002904#endif
2905
2906 /*-------------------------------------------------------------*/
2907
2908#ifdef IBOT2
2909 /* iBOT2 makes a nice source of high speed bulk-in data */
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002910 /* this does not coexist with a real iBOT2 driver! */
2911 { USB_DEVICE(0x0b62, 0x0059),
Linus Torvalds1da177e2005-04-16 15:20:36 -07002912 .driver_info = (unsigned long) &ibot2_info,
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002913 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07002914#endif
2915
2916 /*-------------------------------------------------------------*/
2917
2918#ifdef GENERIC
2919 /* module params can specify devices to use for control tests */
2920 { .driver_info = (unsigned long) &generic_info, },
2921#endif
2922
2923 /*-------------------------------------------------------------*/
2924
2925 { }
2926};
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002927MODULE_DEVICE_TABLE(usb, id_table);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002928
2929static struct usb_driver usbtest_driver = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002930 .name = "usbtest",
2931 .id_table = id_table,
2932 .probe = usbtest_probe,
Andi Kleenc532b292010-06-01 23:04:41 +02002933 .unlocked_ioctl = usbtest_ioctl,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002934 .disconnect = usbtest_disconnect,
David Brownellff7c79e2005-04-22 13:17:00 -07002935 .suspend = usbtest_suspend,
2936 .resume = usbtest_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -07002937};
2938
2939/*-------------------------------------------------------------------------*/
2940
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002941static int __init usbtest_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002942{
2943#ifdef GENERIC
2944 if (vendor)
David Brownell28ffd792008-04-25 18:51:10 -07002945 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002946#endif
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002947 return usb_register(&usbtest_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002948}
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002949module_init(usbtest_init);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002950
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002951static void __exit usbtest_exit(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002952{
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002953 usb_deregister(&usbtest_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002954}
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002955module_exit(usbtest_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002956
Martin Fuzzeyfabbf212010-10-01 00:20:42 +02002957MODULE_DESCRIPTION("USB Core/HCD Testing Driver");
2958MODULE_LICENSE("GPL");
Linus Torvalds1da177e2005-04-16 15:20:36 -07002959