1 #include <linux/config.h> 2 #include <linux/kernel.h> 3 #include <linux/errno.h> 4 #include <linux/init.h> 5 #include <linux/slab.h> 6 #include <linux/mm.h> 7 #include <linux/module.h> 8 #include <linux/moduleparam.h> 9 #include <linux/scatterlist.h> 10 11 #include <linux/usb.h> 12 13 14 /*-------------------------------------------------------------------------*/ 15 16 // FIXME make these public somewhere; usbdevfs.h? 17 // 18 struct usbtest_param { 19 // inputs 20 unsigned test_num; /* 0..(TEST_CASES-1) */ 21 unsigned iterations; 22 unsigned length; 23 unsigned vary; 24 unsigned sglen; 25 26 // outputs 27 struct timeval duration; 28 }; 29 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param) 30 31 /*-------------------------------------------------------------------------*/ 32 33 #define GENERIC /* let probe() bind using module params */ 34 35 /* Some devices that can be used for testing will have "real" drivers. 36 * Entries for those need to be enabled here by hand, after disabling 37 * that "real" driver. 38 */ 39 //#define IBOT2 /* grab iBOT2 webcams */ 40 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */ 41 42 /*-------------------------------------------------------------------------*/ 43 44 struct usbtest_info { 45 const char *name; 46 u8 ep_in; /* bulk/intr source */ 47 u8 ep_out; /* bulk/intr sink */ 48 unsigned autoconf : 1; 49 unsigned ctrl_out : 1; 50 unsigned iso : 1; /* try iso in/out */ 51 int alt; 52 }; 53 54 /* this is accessed only through usbfs ioctl calls. 55 * one ioctl to issue a test ... one lock per device. 56 * tests create other threads if they need them. 57 * urbs and buffers are allocated dynamically, 58 * and data generated deterministically. 59 */ 60 struct usbtest_dev { 61 struct usb_interface *intf; 62 struct usbtest_info *info; 63 int in_pipe; 64 int out_pipe; 65 int in_iso_pipe; 66 int out_iso_pipe; 67 struct usb_endpoint_descriptor *iso_in, *iso_out; 68 struct semaphore sem; 69 70 #define TBUF_SIZE 256 71 u8 *buf; 72 }; 73 74 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test) 75 { 76 return interface_to_usbdev (test->intf); 77 } 78 79 /* set up all urbs so they can be used with either bulk or interrupt */ 80 #define INTERRUPT_RATE 1 /* msec/transfer */ 81 82 #define xprintk(tdev,level,fmt,args...) \ 83 dev_printk(level , &(tdev)->intf->dev , fmt , ## args) 84 85 #ifdef DEBUG 86 #define DBG(dev,fmt,args...) \ 87 xprintk(dev , KERN_DEBUG , fmt , ## args) 88 #else 89 #define DBG(dev,fmt,args...) \ 90 do { } while (0) 91 #endif /* DEBUG */ 92 93 #ifdef VERBOSE 94 #define VDBG DBG 95 #else 96 #define VDBG(dev,fmt,args...) \ 97 do { } while (0) 98 #endif /* VERBOSE */ 99 100 #define ERROR(dev,fmt,args...) \ 101 xprintk(dev , KERN_ERR , fmt , ## args) 102 #define WARN(dev,fmt,args...) \ 103 xprintk(dev , KERN_WARNING , fmt , ## args) 104 #define INFO(dev,fmt,args...) \ 105 xprintk(dev , KERN_INFO , fmt , ## args) 106 107 /*-------------------------------------------------------------------------*/ 108 109 static int 110 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf) 111 { 112 int tmp; 113 struct usb_host_interface *alt; 114 struct usb_host_endpoint *in, *out; 115 struct usb_host_endpoint *iso_in, *iso_out; 116 struct usb_device *udev; 117 118 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { 119 unsigned ep; 120 121 in = out = NULL; 122 iso_in = iso_out = NULL; 123 alt = intf->altsetting + tmp; 124 125 /* take the first altsetting with in-bulk + out-bulk; 126 * ignore other endpoints and altsetttings. 127 */ 128 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { 129 struct usb_host_endpoint *e; 130 131 e = alt->endpoint + ep; 132 switch (e->desc.bmAttributes) { 133 case USB_ENDPOINT_XFER_BULK: 134 break; 135 case USB_ENDPOINT_XFER_ISOC: 136 if (dev->info->iso) 137 goto try_iso; 138 // FALLTHROUGH 139 default: 140 continue; 141 } 142 if (e->desc.bEndpointAddress & USB_DIR_IN) { 143 if (!in) 144 in = e; 145 } else { 146 if (!out) 147 out = e; 148 } 149 continue; 150 try_iso: 151 if (e->desc.bEndpointAddress & USB_DIR_IN) { 152 if (!iso_in) 153 iso_in = e; 154 } else { 155 if (!iso_out) 156 iso_out = e; 157 } 158 } 159 if ((in && out) || (iso_in && iso_out)) 160 goto found; 161 } 162 return -EINVAL; 163 164 found: 165 udev = testdev_to_usbdev (dev); 166 if (alt->desc.bAlternateSetting != 0) { 167 tmp = usb_set_interface (udev, 168 alt->desc.bInterfaceNumber, 169 alt->desc.bAlternateSetting); 170 if (tmp < 0) 171 return tmp; 172 } 173 174 if (in) { 175 dev->in_pipe = usb_rcvbulkpipe (udev, 176 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 177 dev->out_pipe = usb_sndbulkpipe (udev, 178 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 179 } 180 if (iso_in) { 181 dev->iso_in = &iso_in->desc; 182 dev->in_iso_pipe = usb_rcvisocpipe (udev, 183 iso_in->desc.bEndpointAddress 184 & USB_ENDPOINT_NUMBER_MASK); 185 dev->iso_out = &iso_out->desc; 186 dev->out_iso_pipe = usb_sndisocpipe (udev, 187 iso_out->desc.bEndpointAddress 188 & USB_ENDPOINT_NUMBER_MASK); 189 } 190 return 0; 191 } 192 193 /*-------------------------------------------------------------------------*/ 194 195 /* Support for testing basic non-queued I/O streams. 196 * 197 * These just package urbs as requests that can be easily canceled. 198 * Each urb's data buffer is dynamically allocated; callers can fill 199 * them with non-zero test data (or test for it) when appropriate. 200 */ 201 202 static void simple_callback (struct urb *urb, struct pt_regs *regs) 203 { 204 complete ((struct completion *) urb->context); 205 } 206 207 static struct urb *simple_alloc_urb ( 208 struct usb_device *udev, 209 int pipe, 210 unsigned long bytes 211 ) 212 { 213 struct urb *urb; 214 215 if (bytes < 0) 216 return NULL; 217 urb = usb_alloc_urb (0, SLAB_KERNEL); 218 if (!urb) 219 return urb; 220 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); 221 urb->interval = (udev->speed == USB_SPEED_HIGH) 222 ? (INTERRUPT_RATE << 3) 223 : INTERRUPT_RATE; 224 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 225 if (usb_pipein (pipe)) 226 urb->transfer_flags |= URB_SHORT_NOT_OK; 227 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL, 228 &urb->transfer_dma); 229 if (!urb->transfer_buffer) { 230 usb_free_urb (urb); 231 urb = NULL; 232 } else 233 memset (urb->transfer_buffer, 0, bytes); 234 return urb; 235 } 236 237 static unsigned pattern = 0; 238 module_param (pattern, uint, S_IRUGO); 239 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)"); 240 241 static inline void simple_fill_buf (struct urb *urb) 242 { 243 unsigned i; 244 u8 *buf = urb->transfer_buffer; 245 unsigned len = urb->transfer_buffer_length; 246 247 switch (pattern) { 248 default: 249 // FALLTHROUGH 250 case 0: 251 memset (buf, 0, len); 252 break; 253 case 1: /* mod63 */ 254 for (i = 0; i < len; i++) 255 *buf++ = (u8) (i % 63); 256 break; 257 } 258 } 259 260 static inline int simple_check_buf (struct urb *urb) 261 { 262 unsigned i; 263 u8 expected; 264 u8 *buf = urb->transfer_buffer; 265 unsigned len = urb->actual_length; 266 267 for (i = 0; i < len; i++, buf++) { 268 switch (pattern) { 269 /* all-zeroes has no synchronization issues */ 270 case 0: 271 expected = 0; 272 break; 273 /* mod63 stays in sync with short-terminated transfers, 274 * or otherwise when host and gadget agree on how large 275 * each usb transfer request should be. resync is done 276 * with set_interface or set_config. 277 */ 278 case 1: /* mod63 */ 279 expected = i % 63; 280 break; 281 /* always fail unsupported patterns */ 282 default: 283 expected = !*buf; 284 break; 285 } 286 if (*buf == expected) 287 continue; 288 dbg ("buf[%d] = %d (not %d)", i, *buf, expected); 289 return -EINVAL; 290 } 291 return 0; 292 } 293 294 static void simple_free_urb (struct urb *urb) 295 { 296 usb_buffer_free (urb->dev, urb->transfer_buffer_length, 297 urb->transfer_buffer, urb->transfer_dma); 298 usb_free_urb (urb); 299 } 300 301 static int simple_io ( 302 struct urb *urb, 303 int iterations, 304 int vary, 305 int expected, 306 const char *label 307 ) 308 { 309 struct usb_device *udev = urb->dev; 310 int max = urb->transfer_buffer_length; 311 struct completion completion; 312 int retval = 0; 313 314 urb->context = &completion; 315 while (retval == 0 && iterations-- > 0) { 316 init_completion (&completion); 317 if (usb_pipeout (urb->pipe)) 318 simple_fill_buf (urb); 319 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) 320 break; 321 322 /* NOTE: no timeouts; can't be broken out of by interrupt */ 323 wait_for_completion (&completion); 324 retval = urb->status; 325 urb->dev = udev; 326 if (retval == 0 && usb_pipein (urb->pipe)) 327 retval = simple_check_buf (urb); 328 329 if (vary) { 330 int len = urb->transfer_buffer_length; 331 332 len += vary; 333 len %= max; 334 if (len == 0) 335 len = (vary < max) ? vary : max; 336 urb->transfer_buffer_length = len; 337 } 338 339 /* FIXME if endpoint halted, clear halt (and log) */ 340 } 341 urb->transfer_buffer_length = max; 342 343 if (expected != retval) 344 dev_dbg (&udev->dev, 345 "%s failed, iterations left %d, status %d (not %d)\n", 346 label, iterations, retval, expected); 347 return retval; 348 } 349 350 351 /*-------------------------------------------------------------------------*/ 352 353 /* We use scatterlist primitives to test queued I/O. 354 * Yes, this also tests the scatterlist primitives. 355 */ 356 357 static void free_sglist (struct scatterlist *sg, int nents) 358 { 359 unsigned i; 360 361 if (!sg) 362 return; 363 for (i = 0; i < nents; i++) { 364 if (!sg [i].page) 365 continue; 366 kfree (page_address (sg [i].page) + sg [i].offset); 367 } 368 kfree (sg); 369 } 370 371 static struct scatterlist * 372 alloc_sglist (int nents, int max, int vary) 373 { 374 struct scatterlist *sg; 375 unsigned i; 376 unsigned size = max; 377 378 sg = kmalloc (nents * sizeof *sg, SLAB_KERNEL); 379 if (!sg) 380 return NULL; 381 382 for (i = 0; i < nents; i++) { 383 char *buf; 384 385 buf = kzalloc (size, SLAB_KERNEL); 386 if (!buf) { 387 free_sglist (sg, i); 388 return NULL; 389 } 390 391 /* kmalloc pages are always physically contiguous! */ 392 sg_init_one(&sg[i], buf, size); 393 394 if (vary) { 395 size += vary; 396 size %= max; 397 if (size == 0) 398 size = (vary < max) ? vary : max; 399 } 400 } 401 402 return sg; 403 } 404 405 static int perform_sglist ( 406 struct usb_device *udev, 407 unsigned iterations, 408 int pipe, 409 struct usb_sg_request *req, 410 struct scatterlist *sg, 411 int nents 412 ) 413 { 414 int retval = 0; 415 416 while (retval == 0 && iterations-- > 0) { 417 retval = usb_sg_init (req, udev, pipe, 418 (udev->speed == USB_SPEED_HIGH) 419 ? (INTERRUPT_RATE << 3) 420 : INTERRUPT_RATE, 421 sg, nents, 0, SLAB_KERNEL); 422 423 if (retval) 424 break; 425 usb_sg_wait (req); 426 retval = req->status; 427 428 /* FIXME if endpoint halted, clear halt (and log) */ 429 } 430 431 // FIXME for unlink or fault handling tests, don't report 432 // failure if retval is as we expected ... 433 434 if (retval) 435 dbg ("perform_sglist failed, iterations left %d, status %d", 436 iterations, retval); 437 return retval; 438 } 439 440 441 /*-------------------------------------------------------------------------*/ 442 443 /* unqueued control message testing 444 * 445 * there's a nice set of device functional requirements in chapter 9 of the 446 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use 447 * special test firmware. 448 * 449 * we know the device is configured (or suspended) by the time it's visible 450 * through usbfs. we can't change that, so we won't test enumeration (which 451 * worked 'well enough' to get here, this time), power management (ditto), 452 * or remote wakeup (which needs human interaction). 453 */ 454 455 static unsigned realworld = 1; 456 module_param (realworld, uint, 0); 457 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); 458 459 static int get_altsetting (struct usbtest_dev *dev) 460 { 461 struct usb_interface *iface = dev->intf; 462 struct usb_device *udev = interface_to_usbdev (iface); 463 int retval; 464 465 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 466 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, 467 0, iface->altsetting [0].desc.bInterfaceNumber, 468 dev->buf, 1, USB_CTRL_GET_TIMEOUT); 469 switch (retval) { 470 case 1: 471 return dev->buf [0]; 472 case 0: 473 retval = -ERANGE; 474 // FALLTHROUGH 475 default: 476 return retval; 477 } 478 } 479 480 static int set_altsetting (struct usbtest_dev *dev, int alternate) 481 { 482 struct usb_interface *iface = dev->intf; 483 struct usb_device *udev; 484 485 if (alternate < 0 || alternate >= 256) 486 return -EINVAL; 487 488 udev = interface_to_usbdev (iface); 489 return usb_set_interface (udev, 490 iface->altsetting [0].desc.bInterfaceNumber, 491 alternate); 492 } 493 494 static int is_good_config (char *buf, int len) 495 { 496 struct usb_config_descriptor *config; 497 498 if (len < sizeof *config) 499 return 0; 500 config = (struct usb_config_descriptor *) buf; 501 502 switch (config->bDescriptorType) { 503 case USB_DT_CONFIG: 504 case USB_DT_OTHER_SPEED_CONFIG: 505 if (config->bLength != 9) { 506 dbg ("bogus config descriptor length"); 507 return 0; 508 } 509 /* this bit 'must be 1' but often isn't */ 510 if (!realworld && !(config->bmAttributes & 0x80)) { 511 dbg ("high bit of config attributes not set"); 512 return 0; 513 } 514 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 515 dbg ("reserved config bits set"); 516 return 0; 517 } 518 break; 519 default: 520 return 0; 521 } 522 523 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ 524 return 1; 525 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 526 return 1; 527 dbg ("bogus config descriptor read size"); 528 return 0; 529 } 530 531 /* sanity test for standard requests working with usb_control_mesg() and some 532 * of the utility functions which use it. 533 * 534 * this doesn't test how endpoint halts behave or data toggles get set, since 535 * we won't do I/O to bulk/interrupt endpoints here (which is how to change 536 * halt or toggle). toggle testing is impractical without support from hcds. 537 * 538 * this avoids failing devices linux would normally work with, by not testing 539 * config/altsetting operations for devices that only support their defaults. 540 * such devices rarely support those needless operations. 541 * 542 * NOTE that since this is a sanity test, it's not examining boundary cases 543 * to see if usbcore, hcd, and device all behave right. such testing would 544 * involve varied read sizes and other operation sequences. 545 */ 546 static int ch9_postconfig (struct usbtest_dev *dev) 547 { 548 struct usb_interface *iface = dev->intf; 549 struct usb_device *udev = interface_to_usbdev (iface); 550 int i, alt, retval; 551 552 /* [9.2.3] if there's more than one altsetting, we need to be able to 553 * set and get each one. mostly trusts the descriptors from usbcore. 554 */ 555 for (i = 0; i < iface->num_altsetting; i++) { 556 557 /* 9.2.3 constrains the range here */ 558 alt = iface->altsetting [i].desc.bAlternateSetting; 559 if (alt < 0 || alt >= iface->num_altsetting) { 560 dev_dbg (&iface->dev, 561 "invalid alt [%d].bAltSetting = %d\n", 562 i, alt); 563 } 564 565 /* [real world] get/set unimplemented if there's only one */ 566 if (realworld && iface->num_altsetting == 1) 567 continue; 568 569 /* [9.4.10] set_interface */ 570 retval = set_altsetting (dev, alt); 571 if (retval) { 572 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n", 573 alt, retval); 574 return retval; 575 } 576 577 /* [9.4.4] get_interface always works */ 578 retval = get_altsetting (dev); 579 if (retval != alt) { 580 dev_dbg (&iface->dev, "get alt should be %d, was %d\n", 581 alt, retval); 582 return (retval < 0) ? retval : -EDOM; 583 } 584 585 } 586 587 /* [real world] get_config unimplemented if there's only one */ 588 if (!realworld || udev->descriptor.bNumConfigurations != 1) { 589 int expected = udev->actconfig->desc.bConfigurationValue; 590 591 /* [9.4.2] get_configuration always works 592 * ... although some cheap devices (like one TI Hub I've got) 593 * won't return config descriptors except before set_config. 594 */ 595 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 596 USB_REQ_GET_CONFIGURATION, 597 USB_DIR_IN | USB_RECIP_DEVICE, 598 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 599 if (retval != 1 || dev->buf [0] != expected) { 600 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n", 601 retval, dev->buf[0], expected); 602 return (retval < 0) ? retval : -EDOM; 603 } 604 } 605 606 /* there's always [9.4.3] a device descriptor [9.6.1] */ 607 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, 608 dev->buf, sizeof udev->descriptor); 609 if (retval != sizeof udev->descriptor) { 610 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval); 611 return (retval < 0) ? retval : -EDOM; 612 } 613 614 /* there's always [9.4.3] at least one config descriptor [9.6.3] */ 615 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 616 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, 617 dev->buf, TBUF_SIZE); 618 if (!is_good_config (dev->buf, retval)) { 619 dev_dbg (&iface->dev, 620 "config [%d] descriptor --> %d\n", 621 i, retval); 622 return (retval < 0) ? retval : -EDOM; 623 } 624 625 // FIXME cross-checking udev->config[i] to make sure usbcore 626 // parsed it right (etc) would be good testing paranoia 627 } 628 629 /* and sometimes [9.2.6.6] speed dependent descriptors */ 630 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { 631 struct usb_qualifier_descriptor *d = NULL; 632 633 /* device qualifier [9.6.2] */ 634 retval = usb_get_descriptor (udev, 635 USB_DT_DEVICE_QUALIFIER, 0, dev->buf, 636 sizeof (struct usb_qualifier_descriptor)); 637 if (retval == -EPIPE) { 638 if (udev->speed == USB_SPEED_HIGH) { 639 dev_dbg (&iface->dev, 640 "hs dev qualifier --> %d\n", 641 retval); 642 return (retval < 0) ? retval : -EDOM; 643 } 644 /* usb2.0 but not high-speed capable; fine */ 645 } else if (retval != sizeof (struct usb_qualifier_descriptor)) { 646 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval); 647 return (retval < 0) ? retval : -EDOM; 648 } else 649 d = (struct usb_qualifier_descriptor *) dev->buf; 650 651 /* might not have [9.6.2] any other-speed configs [9.6.4] */ 652 if (d) { 653 unsigned max = d->bNumConfigurations; 654 for (i = 0; i < max; i++) { 655 retval = usb_get_descriptor (udev, 656 USB_DT_OTHER_SPEED_CONFIG, i, 657 dev->buf, TBUF_SIZE); 658 if (!is_good_config (dev->buf, retval)) { 659 dev_dbg (&iface->dev, 660 "other speed config --> %d\n", 661 retval); 662 return (retval < 0) ? retval : -EDOM; 663 } 664 } 665 } 666 } 667 // FIXME fetch strings from at least the device descriptor 668 669 /* [9.4.5] get_status always works */ 670 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); 671 if (retval != 2) { 672 dev_dbg (&iface->dev, "get dev status --> %d\n", retval); 673 return (retval < 0) ? retval : -EDOM; 674 } 675 676 // FIXME configuration.bmAttributes says if we could try to set/clear 677 // the device's remote wakeup feature ... if we can, test that here 678 679 retval = usb_get_status (udev, USB_RECIP_INTERFACE, 680 iface->altsetting [0].desc.bInterfaceNumber, dev->buf); 681 if (retval != 2) { 682 dev_dbg (&iface->dev, "get interface status --> %d\n", retval); 683 return (retval < 0) ? retval : -EDOM; 684 } 685 // FIXME get status for each endpoint in the interface 686 687 return 0; 688 } 689 690 /*-------------------------------------------------------------------------*/ 691 692 /* use ch9 requests to test whether: 693 * (a) queues work for control, keeping N subtests queued and 694 * active (auto-resubmit) for M loops through the queue. 695 * (b) protocol stalls (control-only) will autorecover. 696 * it's not like bulk/intr; no halt clearing. 697 * (c) short control reads are reported and handled. 698 * (d) queues are always processed in-order 699 */ 700 701 struct ctrl_ctx { 702 spinlock_t lock; 703 struct usbtest_dev *dev; 704 struct completion complete; 705 unsigned count; 706 unsigned pending; 707 int status; 708 struct urb **urb; 709 struct usbtest_param *param; 710 int last; 711 }; 712 713 #define NUM_SUBCASES 15 /* how many test subcases here? */ 714 715 struct subcase { 716 struct usb_ctrlrequest setup; 717 int number; 718 int expected; 719 }; 720 721 static void ctrl_complete (struct urb *urb, struct pt_regs *regs) 722 { 723 struct ctrl_ctx *ctx = urb->context; 724 struct usb_ctrlrequest *reqp; 725 struct subcase *subcase; 726 int status = urb->status; 727 728 reqp = (struct usb_ctrlrequest *)urb->setup_packet; 729 subcase = container_of (reqp, struct subcase, setup); 730 731 spin_lock (&ctx->lock); 732 ctx->count--; 733 ctx->pending--; 734 735 /* queue must transfer and complete in fifo order, unless 736 * usb_unlink_urb() is used to unlink something not at the 737 * physical queue head (not tested). 738 */ 739 if (subcase->number > 0) { 740 if ((subcase->number - ctx->last) != 1) { 741 dbg ("subcase %d completed out of order, last %d", 742 subcase->number, ctx->last); 743 status = -EDOM; 744 ctx->last = subcase->number; 745 goto error; 746 } 747 } 748 ctx->last = subcase->number; 749 750 /* succeed or fault in only one way? */ 751 if (status == subcase->expected) 752 status = 0; 753 754 /* async unlink for cleanup? */ 755 else if (status != -ECONNRESET) { 756 757 /* some faults are allowed, not required */ 758 if (subcase->expected > 0 && ( 759 ((urb->status == -subcase->expected /* happened */ 760 || urb->status == 0)))) /* didn't */ 761 status = 0; 762 /* sometimes more than one fault is allowed */ 763 else if (subcase->number == 12 && status == -EPIPE) 764 status = 0; 765 else 766 dbg ("subtest %d error, status %d", 767 subcase->number, status); 768 } 769 770 /* unexpected status codes mean errors; ideally, in hardware */ 771 if (status) { 772 error: 773 if (ctx->status == 0) { 774 int i; 775 776 ctx->status = status; 777 info ("control queue %02x.%02x, err %d, %d left", 778 reqp->bRequestType, reqp->bRequest, 779 status, ctx->count); 780 781 /* FIXME this "unlink everything" exit route should 782 * be a separate test case. 783 */ 784 785 /* unlink whatever's still pending */ 786 for (i = 1; i < ctx->param->sglen; i++) { 787 struct urb *u = ctx->urb [ 788 (i + subcase->number) % ctx->param->sglen]; 789 790 if (u == urb || !u->dev) 791 continue; 792 status = usb_unlink_urb (u); 793 switch (status) { 794 case -EINPROGRESS: 795 case -EBUSY: 796 case -EIDRM: 797 continue; 798 default: 799 dbg ("urb unlink --> %d", status); 800 } 801 } 802 status = ctx->status; 803 } 804 } 805 806 /* resubmit if we need to, else mark this as done */ 807 if ((status == 0) && (ctx->pending < ctx->count)) { 808 if ((status = usb_submit_urb (urb, SLAB_ATOMIC)) != 0) { 809 dbg ("can't resubmit ctrl %02x.%02x, err %d", 810 reqp->bRequestType, reqp->bRequest, status); 811 urb->dev = NULL; 812 } else 813 ctx->pending++; 814 } else 815 urb->dev = NULL; 816 817 /* signal completion when nothing's queued */ 818 if (ctx->pending == 0) 819 complete (&ctx->complete); 820 spin_unlock (&ctx->lock); 821 } 822 823 static int 824 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) 825 { 826 struct usb_device *udev = testdev_to_usbdev (dev); 827 struct urb **urb; 828 struct ctrl_ctx context; 829 int i; 830 831 spin_lock_init (&context.lock); 832 context.dev = dev; 833 init_completion (&context.complete); 834 context.count = param->sglen * param->iterations; 835 context.pending = 0; 836 context.status = -ENOMEM; 837 context.param = param; 838 context.last = -1; 839 840 /* allocate and init the urbs we'll queue. 841 * as with bulk/intr sglists, sglen is the queue depth; it also 842 * controls which subtests run (more tests than sglen) or rerun. 843 */ 844 urb = kcalloc(param->sglen, sizeof(struct urb *), SLAB_KERNEL); 845 if (!urb) 846 return -ENOMEM; 847 for (i = 0; i < param->sglen; i++) { 848 int pipe = usb_rcvctrlpipe (udev, 0); 849 unsigned len; 850 struct urb *u; 851 struct usb_ctrlrequest req; 852 struct subcase *reqp; 853 int expected = 0; 854 855 /* requests here are mostly expected to succeed on any 856 * device, but some are chosen to trigger protocol stalls 857 * or short reads. 858 */ 859 memset (&req, 0, sizeof req); 860 req.bRequest = USB_REQ_GET_DESCRIPTOR; 861 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 862 863 switch (i % NUM_SUBCASES) { 864 case 0: // get device descriptor 865 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); 866 len = sizeof (struct usb_device_descriptor); 867 break; 868 case 1: // get first config descriptor (only) 869 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 870 len = sizeof (struct usb_config_descriptor); 871 break; 872 case 2: // get altsetting (OFTEN STALLS) 873 req.bRequest = USB_REQ_GET_INTERFACE; 874 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 875 // index = 0 means first interface 876 len = 1; 877 expected = EPIPE; 878 break; 879 case 3: // get interface status 880 req.bRequest = USB_REQ_GET_STATUS; 881 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 882 // interface 0 883 len = 2; 884 break; 885 case 4: // get device status 886 req.bRequest = USB_REQ_GET_STATUS; 887 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 888 len = 2; 889 break; 890 case 5: // get device qualifier (MAY STALL) 891 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); 892 len = sizeof (struct usb_qualifier_descriptor); 893 if (udev->speed != USB_SPEED_HIGH) 894 expected = EPIPE; 895 break; 896 case 6: // get first config descriptor, plus interface 897 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 898 len = sizeof (struct usb_config_descriptor); 899 len += sizeof (struct usb_interface_descriptor); 900 break; 901 case 7: // get interface descriptor (ALWAYS STALLS) 902 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 903 // interface == 0 904 len = sizeof (struct usb_interface_descriptor); 905 expected = EPIPE; 906 break; 907 // NOTE: two consecutive stalls in the queue here. 908 // that tests fault recovery a bit more aggressively. 909 case 8: // clear endpoint halt (USUALLY STALLS) 910 req.bRequest = USB_REQ_CLEAR_FEATURE; 911 req.bRequestType = USB_RECIP_ENDPOINT; 912 // wValue 0 == ep halt 913 // wIndex 0 == ep0 (shouldn't halt!) 914 len = 0; 915 pipe = usb_sndctrlpipe (udev, 0); 916 expected = EPIPE; 917 break; 918 case 9: // get endpoint status 919 req.bRequest = USB_REQ_GET_STATUS; 920 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; 921 // endpoint 0 922 len = 2; 923 break; 924 case 10: // trigger short read (EREMOTEIO) 925 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 926 len = 1024; 927 expected = -EREMOTEIO; 928 break; 929 // NOTE: two consecutive _different_ faults in the queue. 930 case 11: // get endpoint descriptor (ALWAYS STALLS) 931 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); 932 // endpoint == 0 933 len = sizeof (struct usb_interface_descriptor); 934 expected = EPIPE; 935 break; 936 // NOTE: sometimes even a third fault in the queue! 937 case 12: // get string 0 descriptor (MAY STALL) 938 req.wValue = cpu_to_le16 (USB_DT_STRING << 8); 939 // string == 0, for language IDs 940 len = sizeof (struct usb_interface_descriptor); 941 // may succeed when > 4 languages 942 expected = EREMOTEIO; // or EPIPE, if no strings 943 break; 944 case 13: // short read, resembling case 10 945 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 946 // last data packet "should" be DATA1, not DATA0 947 len = 1024 - udev->descriptor.bMaxPacketSize0; 948 expected = -EREMOTEIO; 949 break; 950 case 14: // short read; try to fill the last packet 951 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); 952 // device descriptor size == 18 bytes 953 len = udev->descriptor.bMaxPacketSize0; 954 switch (len) { 955 case 8: len = 24; break; 956 case 16: len = 32; break; 957 } 958 expected = -EREMOTEIO; 959 break; 960 default: 961 err ("bogus number of ctrl queue testcases!"); 962 context.status = -EINVAL; 963 goto cleanup; 964 } 965 req.wLength = cpu_to_le16 (len); 966 urb [i] = u = simple_alloc_urb (udev, pipe, len); 967 if (!u) 968 goto cleanup; 969 970 reqp = usb_buffer_alloc (udev, sizeof *reqp, SLAB_KERNEL, 971 &u->setup_dma); 972 if (!reqp) 973 goto cleanup; 974 reqp->setup = req; 975 reqp->number = i % NUM_SUBCASES; 976 reqp->expected = expected; 977 u->setup_packet = (char *) &reqp->setup; 978 u->transfer_flags |= URB_NO_SETUP_DMA_MAP; 979 980 u->context = &context; 981 u->complete = ctrl_complete; 982 } 983 984 /* queue the urbs */ 985 context.urb = urb; 986 spin_lock_irq (&context.lock); 987 for (i = 0; i < param->sglen; i++) { 988 context.status = usb_submit_urb (urb [i], SLAB_ATOMIC); 989 if (context.status != 0) { 990 dbg ("can't submit urb[%d], status %d", 991 i, context.status); 992 context.count = context.pending; 993 break; 994 } 995 context.pending++; 996 } 997 spin_unlock_irq (&context.lock); 998 999 /* FIXME set timer and time out; provide a disconnect hook */ 1000 1001 /* wait for the last one to complete */ 1002 if (context.pending > 0) 1003 wait_for_completion (&context.complete); 1004 1005 cleanup: 1006 for (i = 0; i < param->sglen; i++) { 1007 if (!urb [i]) 1008 continue; 1009 urb [i]->dev = udev; 1010 if (urb [i]->setup_packet) 1011 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest), 1012 urb [i]->setup_packet, 1013 urb [i]->setup_dma); 1014 simple_free_urb (urb [i]); 1015 } 1016 kfree (urb); 1017 return context.status; 1018 } 1019 #undef NUM_SUBCASES 1020 1021 1022 /*-------------------------------------------------------------------------*/ 1023 1024 static void unlink1_callback (struct urb *urb, struct pt_regs *regs) 1025 { 1026 int status = urb->status; 1027 1028 // we "know" -EPIPE (stall) never happens 1029 if (!status) 1030 status = usb_submit_urb (urb, SLAB_ATOMIC); 1031 if (status) { 1032 urb->status = status; 1033 complete ((struct completion *) urb->context); 1034 } 1035 } 1036 1037 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) 1038 { 1039 struct urb *urb; 1040 struct completion completion; 1041 int retval = 0; 1042 1043 init_completion (&completion); 1044 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); 1045 if (!urb) 1046 return -ENOMEM; 1047 urb->context = &completion; 1048 urb->complete = unlink1_callback; 1049 1050 /* keep the endpoint busy. there are lots of hc/hcd-internal 1051 * states, and testing should get to all of them over time. 1052 * 1053 * FIXME want additional tests for when endpoint is STALLing 1054 * due to errors, or is just NAKing requests. 1055 */ 1056 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) { 1057 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval); 1058 return retval; 1059 } 1060 1061 /* unlinking that should always work. variable delay tests more 1062 * hcd states and code paths, even with little other system load. 1063 */ 1064 msleep (jiffies % (2 * INTERRUPT_RATE)); 1065 if (async) { 1066 retry: 1067 retval = usb_unlink_urb (urb); 1068 if (retval == -EBUSY || retval == -EIDRM) { 1069 /* we can't unlink urbs while they're completing. 1070 * or if they've completed, and we haven't resubmitted. 1071 * "normal" drivers would prevent resubmission, but 1072 * since we're testing unlink paths, we can't. 1073 */ 1074 dev_dbg (&dev->intf->dev, "unlink retry\n"); 1075 goto retry; 1076 } 1077 } else 1078 usb_kill_urb (urb); 1079 if (!(retval == 0 || retval == -EINPROGRESS)) { 1080 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval); 1081 return retval; 1082 } 1083 1084 wait_for_completion (&completion); 1085 retval = urb->status; 1086 simple_free_urb (urb); 1087 1088 if (async) 1089 return (retval == -ECONNRESET) ? 0 : retval - 1000; 1090 else 1091 return (retval == -ENOENT || retval == -EPERM) ? 1092 0 : retval - 2000; 1093 } 1094 1095 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len) 1096 { 1097 int retval = 0; 1098 1099 /* test sync and async paths */ 1100 retval = unlink1 (dev, pipe, len, 1); 1101 if (!retval) 1102 retval = unlink1 (dev, pipe, len, 0); 1103 return retval; 1104 } 1105 1106 /*-------------------------------------------------------------------------*/ 1107 1108 static int verify_not_halted (int ep, struct urb *urb) 1109 { 1110 int retval; 1111 u16 status; 1112 1113 /* shouldn't look or act halted */ 1114 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1115 if (retval < 0) { 1116 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval); 1117 return retval; 1118 } 1119 if (status != 0) { 1120 dbg ("ep %02x bogus status: %04x != 0", ep, status); 1121 return -EINVAL; 1122 } 1123 retval = simple_io (urb, 1, 0, 0, __FUNCTION__); 1124 if (retval != 0) 1125 return -EINVAL; 1126 return 0; 1127 } 1128 1129 static int verify_halted (int ep, struct urb *urb) 1130 { 1131 int retval; 1132 u16 status; 1133 1134 /* should look and act halted */ 1135 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1136 if (retval < 0) { 1137 dbg ("ep %02x couldn't get halt status, %d", ep, retval); 1138 return retval; 1139 } 1140 if (status != 1) { 1141 dbg ("ep %02x bogus status: %04x != 1", ep, status); 1142 return -EINVAL; 1143 } 1144 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__); 1145 if (retval != -EPIPE) 1146 return -EINVAL; 1147 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted"); 1148 if (retval != -EPIPE) 1149 return -EINVAL; 1150 return 0; 1151 } 1152 1153 static int test_halt (int ep, struct urb *urb) 1154 { 1155 int retval; 1156 1157 /* shouldn't look or act halted now */ 1158 retval = verify_not_halted (ep, urb); 1159 if (retval < 0) 1160 return retval; 1161 1162 /* set halt (protocol test only), verify it worked */ 1163 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), 1164 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, 1165 USB_ENDPOINT_HALT, ep, 1166 NULL, 0, USB_CTRL_SET_TIMEOUT); 1167 if (retval < 0) { 1168 dbg ("ep %02x couldn't set halt, %d", ep, retval); 1169 return retval; 1170 } 1171 retval = verify_halted (ep, urb); 1172 if (retval < 0) 1173 return retval; 1174 1175 /* clear halt (tests API + protocol), verify it worked */ 1176 retval = usb_clear_halt (urb->dev, urb->pipe); 1177 if (retval < 0) { 1178 dbg ("ep %02x couldn't clear halt, %d", ep, retval); 1179 return retval; 1180 } 1181 retval = verify_not_halted (ep, urb); 1182 if (retval < 0) 1183 return retval; 1184 1185 /* NOTE: could also verify SET_INTERFACE clear halts ... */ 1186 1187 return 0; 1188 } 1189 1190 static int halt_simple (struct usbtest_dev *dev) 1191 { 1192 int ep; 1193 int retval = 0; 1194 struct urb *urb; 1195 1196 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); 1197 if (urb == NULL) 1198 return -ENOMEM; 1199 1200 if (dev->in_pipe) { 1201 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; 1202 urb->pipe = dev->in_pipe; 1203 retval = test_halt (ep, urb); 1204 if (retval < 0) 1205 goto done; 1206 } 1207 1208 if (dev->out_pipe) { 1209 ep = usb_pipeendpoint (dev->out_pipe); 1210 urb->pipe = dev->out_pipe; 1211 retval = test_halt (ep, urb); 1212 } 1213 done: 1214 simple_free_urb (urb); 1215 return retval; 1216 } 1217 1218 /*-------------------------------------------------------------------------*/ 1219 1220 /* Control OUT tests use the vendor control requests from Intel's 1221 * USB 2.0 compliance test device: write a buffer, read it back. 1222 * 1223 * Intel's spec only _requires_ that it work for one packet, which 1224 * is pretty weak. Some HCDs place limits here; most devices will 1225 * need to be able to handle more than one OUT data packet. We'll 1226 * try whatever we're told to try. 1227 */ 1228 static int ctrl_out (struct usbtest_dev *dev, 1229 unsigned count, unsigned length, unsigned vary) 1230 { 1231 unsigned i, j, len, retval; 1232 u8 *buf; 1233 char *what = "?"; 1234 struct usb_device *udev; 1235 1236 if (length < 1 || length > 0xffff || vary >= length) 1237 return -EINVAL; 1238 1239 buf = kmalloc(length, SLAB_KERNEL); 1240 if (!buf) 1241 return -ENOMEM; 1242 1243 udev = testdev_to_usbdev (dev); 1244 len = length; 1245 retval = 0; 1246 1247 /* NOTE: hardware might well act differently if we pushed it 1248 * with lots back-to-back queued requests. 1249 */ 1250 for (i = 0; i < count; i++) { 1251 /* write patterned data */ 1252 for (j = 0; j < len; j++) 1253 buf [j] = i + j; 1254 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), 1255 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, 1256 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); 1257 if (retval != len) { 1258 what = "write"; 1259 if (retval >= 0) { 1260 INFO(dev, "ctrl_out, wlen %d (expected %d)\n", 1261 retval, len); 1262 retval = -EBADMSG; 1263 } 1264 break; 1265 } 1266 1267 /* read it back -- assuming nothing intervened!! */ 1268 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), 1269 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, 1270 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); 1271 if (retval != len) { 1272 what = "read"; 1273 if (retval >= 0) { 1274 INFO(dev, "ctrl_out, rlen %d (expected %d)\n", 1275 retval, len); 1276 retval = -EBADMSG; 1277 } 1278 break; 1279 } 1280 1281 /* fail if we can't verify */ 1282 for (j = 0; j < len; j++) { 1283 if (buf [j] != (u8) (i + j)) { 1284 INFO (dev, "ctrl_out, byte %d is %d not %d\n", 1285 j, buf [j], (u8) i + j); 1286 retval = -EBADMSG; 1287 break; 1288 } 1289 } 1290 if (retval < 0) { 1291 what = "verify"; 1292 break; 1293 } 1294 1295 len += vary; 1296 1297 /* [real world] the "zero bytes IN" case isn't really used. 1298 * hardware can easily trip up in this wierd case, since its 1299 * status stage is IN, not OUT like other ep0in transfers. 1300 */ 1301 if (len > length) 1302 len = realworld ? 1 : 0; 1303 } 1304 1305 if (retval < 0) 1306 INFO (dev, "ctrl_out %s failed, code %d, count %d\n", 1307 what, retval, i); 1308 1309 kfree (buf); 1310 return retval; 1311 } 1312 1313 /*-------------------------------------------------------------------------*/ 1314 1315 /* ISO tests ... mimics common usage 1316 * - buffer length is split into N packets (mostly maxpacket sized) 1317 * - multi-buffers according to sglen 1318 */ 1319 1320 struct iso_context { 1321 unsigned count; 1322 unsigned pending; 1323 spinlock_t lock; 1324 struct completion done; 1325 unsigned long errors; 1326 struct usbtest_dev *dev; 1327 }; 1328 1329 static void iso_callback (struct urb *urb, struct pt_regs *regs) 1330 { 1331 struct iso_context *ctx = urb->context; 1332 1333 spin_lock(&ctx->lock); 1334 ctx->count--; 1335 1336 if (urb->error_count > 0) 1337 ctx->errors += urb->error_count; 1338 1339 if (urb->status == 0 && ctx->count > (ctx->pending - 1)) { 1340 int status = usb_submit_urb (urb, GFP_ATOMIC); 1341 switch (status) { 1342 case 0: 1343 goto done; 1344 default: 1345 dev_dbg (&ctx->dev->intf->dev, 1346 "iso resubmit err %d\n", 1347 status); 1348 /* FALLTHROUGH */ 1349 case -ENODEV: /* disconnected */ 1350 break; 1351 } 1352 } 1353 simple_free_urb (urb); 1354 1355 ctx->pending--; 1356 if (ctx->pending == 0) { 1357 if (ctx->errors) 1358 dev_dbg (&ctx->dev->intf->dev, 1359 "iso test, %lu errors\n", 1360 ctx->errors); 1361 complete (&ctx->done); 1362 } 1363 done: 1364 spin_unlock(&ctx->lock); 1365 } 1366 1367 static struct urb *iso_alloc_urb ( 1368 struct usb_device *udev, 1369 int pipe, 1370 struct usb_endpoint_descriptor *desc, 1371 long bytes 1372 ) 1373 { 1374 struct urb *urb; 1375 unsigned i, maxp, packets; 1376 1377 if (bytes < 0 || !desc) 1378 return NULL; 1379 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); 1380 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); 1381 packets = (bytes + maxp - 1) / maxp; 1382 1383 urb = usb_alloc_urb (packets, SLAB_KERNEL); 1384 if (!urb) 1385 return urb; 1386 urb->dev = udev; 1387 urb->pipe = pipe; 1388 1389 urb->number_of_packets = packets; 1390 urb->transfer_buffer_length = bytes; 1391 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL, 1392 &urb->transfer_dma); 1393 if (!urb->transfer_buffer) { 1394 usb_free_urb (urb); 1395 return NULL; 1396 } 1397 memset (urb->transfer_buffer, 0, bytes); 1398 for (i = 0; i < packets; i++) { 1399 /* here, only the last packet will be short */ 1400 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); 1401 bytes -= urb->iso_frame_desc[i].length; 1402 1403 urb->iso_frame_desc[i].offset = maxp * i; 1404 } 1405 1406 urb->complete = iso_callback; 1407 // urb->context = SET BY CALLER 1408 urb->interval = 1 << (desc->bInterval - 1); 1409 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 1410 return urb; 1411 } 1412 1413 static int 1414 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, 1415 int pipe, struct usb_endpoint_descriptor *desc) 1416 { 1417 struct iso_context context; 1418 struct usb_device *udev; 1419 unsigned i; 1420 unsigned long packets = 0; 1421 int status; 1422 struct urb *urbs[10]; /* FIXME no limit */ 1423 1424 if (param->sglen > 10) 1425 return -EDOM; 1426 1427 context.count = param->iterations * param->sglen; 1428 context.pending = param->sglen; 1429 context.errors = 0; 1430 context.dev = dev; 1431 init_completion (&context.done); 1432 spin_lock_init (&context.lock); 1433 1434 memset (urbs, 0, sizeof urbs); 1435 udev = testdev_to_usbdev (dev); 1436 dev_dbg (&dev->intf->dev, 1437 "... iso period %d %sframes, wMaxPacket %04x\n", 1438 1 << (desc->bInterval - 1), 1439 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1440 le16_to_cpu(desc->wMaxPacketSize)); 1441 1442 for (i = 0; i < param->sglen; i++) { 1443 urbs [i] = iso_alloc_urb (udev, pipe, desc, 1444 param->length); 1445 if (!urbs [i]) { 1446 status = -ENOMEM; 1447 goto fail; 1448 } 1449 packets += urbs[i]->number_of_packets; 1450 urbs [i]->context = &context; 1451 } 1452 packets *= param->iterations; 1453 dev_dbg (&dev->intf->dev, 1454 "... total %lu msec (%lu packets)\n", 1455 (packets * (1 << (desc->bInterval - 1))) 1456 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1457 packets); 1458 1459 spin_lock_irq (&context.lock); 1460 for (i = 0; i < param->sglen; i++) { 1461 status = usb_submit_urb (urbs [i], SLAB_ATOMIC); 1462 if (status < 0) { 1463 ERROR (dev, "submit iso[%d], error %d\n", i, status); 1464 if (i == 0) { 1465 spin_unlock_irq (&context.lock); 1466 goto fail; 1467 } 1468 1469 simple_free_urb (urbs [i]); 1470 context.pending--; 1471 } 1472 } 1473 spin_unlock_irq (&context.lock); 1474 1475 wait_for_completion (&context.done); 1476 return 0; 1477 1478 fail: 1479 for (i = 0; i < param->sglen; i++) { 1480 if (urbs [i]) 1481 simple_free_urb (urbs [i]); 1482 } 1483 return status; 1484 } 1485 1486 /*-------------------------------------------------------------------------*/ 1487 1488 /* We only have this one interface to user space, through usbfs. 1489 * User mode code can scan usbfs to find N different devices (maybe on 1490 * different busses) to use when testing, and allocate one thread per 1491 * test. So discovery is simplified, and we have no device naming issues. 1492 * 1493 * Don't use these only as stress/load tests. Use them along with with 1494 * other USB bus activity: plugging, unplugging, mousing, mp3 playback, 1495 * video capture, and so on. Run different tests at different times, in 1496 * different sequences. Nothing here should interact with other devices, 1497 * except indirectly by consuming USB bandwidth and CPU resources for test 1498 * threads and request completion. But the only way to know that for sure 1499 * is to test when HC queues are in use by many devices. 1500 */ 1501 1502 static int 1503 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) 1504 { 1505 struct usbtest_dev *dev = usb_get_intfdata (intf); 1506 struct usb_device *udev = testdev_to_usbdev (dev); 1507 struct usbtest_param *param = buf; 1508 int retval = -EOPNOTSUPP; 1509 struct urb *urb; 1510 struct scatterlist *sg; 1511 struct usb_sg_request req; 1512 struct timeval start; 1513 unsigned i; 1514 1515 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. 1516 1517 if (code != USBTEST_REQUEST) 1518 return -EOPNOTSUPP; 1519 1520 if (param->iterations <= 0 || param->length < 0 1521 || param->sglen < 0 || param->vary < 0) 1522 return -EINVAL; 1523 1524 if (down_interruptible (&dev->sem)) 1525 return -ERESTARTSYS; 1526 1527 if (intf->dev.power.power_state.event != PM_EVENT_ON) { 1528 up (&dev->sem); 1529 return -EHOSTUNREACH; 1530 } 1531 1532 /* some devices, like ez-usb default devices, need a non-default 1533 * altsetting to have any active endpoints. some tests change 1534 * altsettings; force a default so most tests don't need to check. 1535 */ 1536 if (dev->info->alt >= 0) { 1537 int res; 1538 1539 if (intf->altsetting->desc.bInterfaceNumber) { 1540 up (&dev->sem); 1541 return -ENODEV; 1542 } 1543 res = set_altsetting (dev, dev->info->alt); 1544 if (res) { 1545 dev_err (&intf->dev, 1546 "set altsetting to %d failed, %d\n", 1547 dev->info->alt, res); 1548 up (&dev->sem); 1549 return res; 1550 } 1551 } 1552 1553 /* 1554 * Just a bunch of test cases that every HCD is expected to handle. 1555 * 1556 * Some may need specific firmware, though it'd be good to have 1557 * one firmware image to handle all the test cases. 1558 * 1559 * FIXME add more tests! cancel requests, verify the data, control 1560 * queueing, concurrent read+write threads, and so on. 1561 */ 1562 do_gettimeofday (&start); 1563 switch (param->test_num) { 1564 1565 case 0: 1566 dev_dbg (&intf->dev, "TEST 0: NOP\n"); 1567 retval = 0; 1568 break; 1569 1570 /* Simple non-queued bulk I/O tests */ 1571 case 1: 1572 if (dev->out_pipe == 0) 1573 break; 1574 dev_dbg (&intf->dev, 1575 "TEST 1: write %d bytes %u times\n", 1576 param->length, param->iterations); 1577 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1578 if (!urb) { 1579 retval = -ENOMEM; 1580 break; 1581 } 1582 // FIRMWARE: bulk sink (maybe accepts short writes) 1583 retval = simple_io (urb, param->iterations, 0, 0, "test1"); 1584 simple_free_urb (urb); 1585 break; 1586 case 2: 1587 if (dev->in_pipe == 0) 1588 break; 1589 dev_dbg (&intf->dev, 1590 "TEST 2: read %d bytes %u times\n", 1591 param->length, param->iterations); 1592 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1593 if (!urb) { 1594 retval = -ENOMEM; 1595 break; 1596 } 1597 // FIRMWARE: bulk source (maybe generates short writes) 1598 retval = simple_io (urb, param->iterations, 0, 0, "test2"); 1599 simple_free_urb (urb); 1600 break; 1601 case 3: 1602 if (dev->out_pipe == 0 || param->vary == 0) 1603 break; 1604 dev_dbg (&intf->dev, 1605 "TEST 3: write/%d 0..%d bytes %u times\n", 1606 param->vary, param->length, param->iterations); 1607 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1608 if (!urb) { 1609 retval = -ENOMEM; 1610 break; 1611 } 1612 // FIRMWARE: bulk sink (maybe accepts short writes) 1613 retval = simple_io (urb, param->iterations, param->vary, 1614 0, "test3"); 1615 simple_free_urb (urb); 1616 break; 1617 case 4: 1618 if (dev->in_pipe == 0 || param->vary == 0) 1619 break; 1620 dev_dbg (&intf->dev, 1621 "TEST 4: read/%d 0..%d bytes %u times\n", 1622 param->vary, param->length, param->iterations); 1623 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1624 if (!urb) { 1625 retval = -ENOMEM; 1626 break; 1627 } 1628 // FIRMWARE: bulk source (maybe generates short writes) 1629 retval = simple_io (urb, param->iterations, param->vary, 1630 0, "test4"); 1631 simple_free_urb (urb); 1632 break; 1633 1634 /* Queued bulk I/O tests */ 1635 case 5: 1636 if (dev->out_pipe == 0 || param->sglen == 0) 1637 break; 1638 dev_dbg (&intf->dev, 1639 "TEST 5: write %d sglists %d entries of %d bytes\n", 1640 param->iterations, 1641 param->sglen, param->length); 1642 sg = alloc_sglist (param->sglen, param->length, 0); 1643 if (!sg) { 1644 retval = -ENOMEM; 1645 break; 1646 } 1647 // FIRMWARE: bulk sink (maybe accepts short writes) 1648 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1649 &req, sg, param->sglen); 1650 free_sglist (sg, param->sglen); 1651 break; 1652 1653 case 6: 1654 if (dev->in_pipe == 0 || param->sglen == 0) 1655 break; 1656 dev_dbg (&intf->dev, 1657 "TEST 6: read %d sglists %d entries of %d bytes\n", 1658 param->iterations, 1659 param->sglen, param->length); 1660 sg = alloc_sglist (param->sglen, param->length, 0); 1661 if (!sg) { 1662 retval = -ENOMEM; 1663 break; 1664 } 1665 // FIRMWARE: bulk source (maybe generates short writes) 1666 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1667 &req, sg, param->sglen); 1668 free_sglist (sg, param->sglen); 1669 break; 1670 case 7: 1671 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 1672 break; 1673 dev_dbg (&intf->dev, 1674 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 1675 param->vary, param->iterations, 1676 param->sglen, param->length); 1677 sg = alloc_sglist (param->sglen, param->length, param->vary); 1678 if (!sg) { 1679 retval = -ENOMEM; 1680 break; 1681 } 1682 // FIRMWARE: bulk sink (maybe accepts short writes) 1683 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1684 &req, sg, param->sglen); 1685 free_sglist (sg, param->sglen); 1686 break; 1687 case 8: 1688 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 1689 break; 1690 dev_dbg (&intf->dev, 1691 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 1692 param->vary, param->iterations, 1693 param->sglen, param->length); 1694 sg = alloc_sglist (param->sglen, param->length, param->vary); 1695 if (!sg) { 1696 retval = -ENOMEM; 1697 break; 1698 } 1699 // FIRMWARE: bulk source (maybe generates short writes) 1700 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1701 &req, sg, param->sglen); 1702 free_sglist (sg, param->sglen); 1703 break; 1704 1705 /* non-queued sanity tests for control (chapter 9 subset) */ 1706 case 9: 1707 retval = 0; 1708 dev_dbg (&intf->dev, 1709 "TEST 9: ch9 (subset) control tests, %d times\n", 1710 param->iterations); 1711 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1712 retval = ch9_postconfig (dev); 1713 if (retval) 1714 dbg ("ch9 subset failed, iterations left %d", i); 1715 break; 1716 1717 /* queued control messaging */ 1718 case 10: 1719 if (param->sglen == 0) 1720 break; 1721 retval = 0; 1722 dev_dbg (&intf->dev, 1723 "TEST 10: queue %d control calls, %d times\n", 1724 param->sglen, 1725 param->iterations); 1726 retval = test_ctrl_queue (dev, param); 1727 break; 1728 1729 /* simple non-queued unlinks (ring with one urb) */ 1730 case 11: 1731 if (dev->in_pipe == 0 || !param->length) 1732 break; 1733 retval = 0; 1734 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n", 1735 param->iterations, param->length); 1736 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1737 retval = unlink_simple (dev, dev->in_pipe, 1738 param->length); 1739 if (retval) 1740 dev_dbg (&intf->dev, "unlink reads failed %d, " 1741 "iterations left %d\n", retval, i); 1742 break; 1743 case 12: 1744 if (dev->out_pipe == 0 || !param->length) 1745 break; 1746 retval = 0; 1747 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n", 1748 param->iterations, param->length); 1749 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1750 retval = unlink_simple (dev, dev->out_pipe, 1751 param->length); 1752 if (retval) 1753 dev_dbg (&intf->dev, "unlink writes failed %d, " 1754 "iterations left %d\n", retval, i); 1755 break; 1756 1757 /* ep halt tests */ 1758 case 13: 1759 if (dev->out_pipe == 0 && dev->in_pipe == 0) 1760 break; 1761 retval = 0; 1762 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n", 1763 param->iterations); 1764 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1765 retval = halt_simple (dev); 1766 1767 if (retval) 1768 DBG (dev, "halts failed, iterations left %d\n", i); 1769 break; 1770 1771 /* control write tests */ 1772 case 14: 1773 if (!dev->info->ctrl_out) 1774 break; 1775 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 1776 param->iterations, 1777 realworld ? 1 : 0, param->length, 1778 param->vary); 1779 retval = ctrl_out (dev, param->iterations, 1780 param->length, param->vary); 1781 break; 1782 1783 /* iso write tests */ 1784 case 15: 1785 if (dev->out_iso_pipe == 0 || param->sglen == 0) 1786 break; 1787 dev_dbg (&intf->dev, 1788 "TEST 15: write %d iso, %d entries of %d bytes\n", 1789 param->iterations, 1790 param->sglen, param->length); 1791 // FIRMWARE: iso sink 1792 retval = test_iso_queue (dev, param, 1793 dev->out_iso_pipe, dev->iso_out); 1794 break; 1795 1796 /* iso read tests */ 1797 case 16: 1798 if (dev->in_iso_pipe == 0 || param->sglen == 0) 1799 break; 1800 dev_dbg (&intf->dev, 1801 "TEST 16: read %d iso, %d entries of %d bytes\n", 1802 param->iterations, 1803 param->sglen, param->length); 1804 // FIRMWARE: iso source 1805 retval = test_iso_queue (dev, param, 1806 dev->in_iso_pipe, dev->iso_in); 1807 break; 1808 1809 // FIXME unlink from queue (ring with N urbs) 1810 1811 // FIXME scatterlist cancel (needs helper thread) 1812 1813 } 1814 do_gettimeofday (¶m->duration); 1815 param->duration.tv_sec -= start.tv_sec; 1816 param->duration.tv_usec -= start.tv_usec; 1817 if (param->duration.tv_usec < 0) { 1818 param->duration.tv_usec += 1000 * 1000; 1819 param->duration.tv_sec -= 1; 1820 } 1821 up (&dev->sem); 1822 return retval; 1823 } 1824 1825 /*-------------------------------------------------------------------------*/ 1826 1827 static unsigned force_interrupt = 0; 1828 module_param (force_interrupt, uint, 0); 1829 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); 1830 1831 #ifdef GENERIC 1832 static unsigned short vendor; 1833 module_param(vendor, ushort, 0); 1834 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); 1835 1836 static unsigned short product; 1837 module_param(product, ushort, 0); 1838 MODULE_PARM_DESC (product, "product code (from vendor)"); 1839 #endif 1840 1841 static int 1842 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) 1843 { 1844 struct usb_device *udev; 1845 struct usbtest_dev *dev; 1846 struct usbtest_info *info; 1847 char *rtest, *wtest; 1848 char *irtest, *iwtest; 1849 1850 udev = interface_to_usbdev (intf); 1851 1852 #ifdef GENERIC 1853 /* specify devices by module parameters? */ 1854 if (id->match_flags == 0) { 1855 /* vendor match required, product match optional */ 1856 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) 1857 return -ENODEV; 1858 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 1859 return -ENODEV; 1860 dbg ("matched module params, vend=0x%04x prod=0x%04x", 1861 le16_to_cpu(udev->descriptor.idVendor), 1862 le16_to_cpu(udev->descriptor.idProduct)); 1863 } 1864 #endif 1865 1866 dev = kzalloc(sizeof(*dev), SLAB_KERNEL); 1867 if (!dev) 1868 return -ENOMEM; 1869 info = (struct usbtest_info *) id->driver_info; 1870 dev->info = info; 1871 init_MUTEX (&dev->sem); 1872 1873 dev->intf = intf; 1874 1875 /* cacheline-aligned scratch for i/o */ 1876 if ((dev->buf = kmalloc (TBUF_SIZE, SLAB_KERNEL)) == NULL) { 1877 kfree (dev); 1878 return -ENOMEM; 1879 } 1880 1881 /* NOTE this doesn't yet test the handful of difference that are 1882 * visible with high speed interrupts: bigger maxpacket (1K) and 1883 * "high bandwidth" modes (up to 3 packets/uframe). 1884 */ 1885 rtest = wtest = ""; 1886 irtest = iwtest = ""; 1887 if (force_interrupt || udev->speed == USB_SPEED_LOW) { 1888 if (info->ep_in) { 1889 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); 1890 rtest = " intr-in"; 1891 } 1892 if (info->ep_out) { 1893 dev->out_pipe = usb_sndintpipe (udev, info->ep_out); 1894 wtest = " intr-out"; 1895 } 1896 } else { 1897 if (info->autoconf) { 1898 int status; 1899 1900 status = get_endpoints (dev, intf); 1901 if (status < 0) { 1902 dbg ("couldn't get endpoints, %d\n", status); 1903 return status; 1904 } 1905 /* may find bulk or ISO pipes */ 1906 } else { 1907 if (info->ep_in) 1908 dev->in_pipe = usb_rcvbulkpipe (udev, 1909 info->ep_in); 1910 if (info->ep_out) 1911 dev->out_pipe = usb_sndbulkpipe (udev, 1912 info->ep_out); 1913 } 1914 if (dev->in_pipe) 1915 rtest = " bulk-in"; 1916 if (dev->out_pipe) 1917 wtest = " bulk-out"; 1918 if (dev->in_iso_pipe) 1919 irtest = " iso-in"; 1920 if (dev->out_iso_pipe) 1921 iwtest = " iso-out"; 1922 } 1923 1924 usb_set_intfdata (intf, dev); 1925 dev_info (&intf->dev, "%s\n", info->name); 1926 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", 1927 ({ char *tmp; 1928 switch (udev->speed) { 1929 case USB_SPEED_LOW: tmp = "low"; break; 1930 case USB_SPEED_FULL: tmp = "full"; break; 1931 case USB_SPEED_HIGH: tmp = "high"; break; 1932 default: tmp = "unknown"; break; 1933 }; tmp; }), 1934 info->ctrl_out ? " in/out" : "", 1935 rtest, wtest, 1936 irtest, iwtest, 1937 info->alt >= 0 ? " (+alt)" : ""); 1938 return 0; 1939 } 1940 1941 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) 1942 { 1943 return 0; 1944 } 1945 1946 static int usbtest_resume (struct usb_interface *intf) 1947 { 1948 return 0; 1949 } 1950 1951 1952 static void usbtest_disconnect (struct usb_interface *intf) 1953 { 1954 struct usbtest_dev *dev = usb_get_intfdata (intf); 1955 1956 down (&dev->sem); 1957 1958 usb_set_intfdata (intf, NULL); 1959 dev_dbg (&intf->dev, "disconnect\n"); 1960 kfree (dev); 1961 } 1962 1963 /* Basic testing only needs a device that can source or sink bulk traffic. 1964 * Any device can test control transfers (default with GENERIC binding). 1965 * 1966 * Several entries work with the default EP0 implementation that's built 1967 * into EZ-USB chips. There's a default vendor ID which can be overridden 1968 * by (very) small config EEPROMS, but otherwise all these devices act 1969 * identically until firmware is loaded: only EP0 works. It turns out 1970 * to be easy to make other endpoints work, without modifying that EP0 1971 * behavior. For now, we expect that kind of firmware. 1972 */ 1973 1974 /* an21xx or fx versions of ez-usb */ 1975 static struct usbtest_info ez1_info = { 1976 .name = "EZ-USB device", 1977 .ep_in = 2, 1978 .ep_out = 2, 1979 .alt = 1, 1980 }; 1981 1982 /* fx2 version of ez-usb */ 1983 static struct usbtest_info ez2_info = { 1984 .name = "FX2 device", 1985 .ep_in = 6, 1986 .ep_out = 2, 1987 .alt = 1, 1988 }; 1989 1990 /* ezusb family device with dedicated usb test firmware, 1991 */ 1992 static struct usbtest_info fw_info = { 1993 .name = "usb test device", 1994 .ep_in = 2, 1995 .ep_out = 2, 1996 .alt = 1, 1997 .autoconf = 1, // iso and ctrl_out need autoconf 1998 .ctrl_out = 1, 1999 .iso = 1, // iso_ep's are #8 in/out 2000 }; 2001 2002 /* peripheral running Linux and 'zero.c' test firmware, or 2003 * its user-mode cousin. different versions of this use 2004 * different hardware with the same vendor/product codes. 2005 * host side MUST rely on the endpoint descriptors. 2006 */ 2007 static struct usbtest_info gz_info = { 2008 .name = "Linux gadget zero", 2009 .autoconf = 1, 2010 .ctrl_out = 1, 2011 .alt = 0, 2012 }; 2013 2014 static struct usbtest_info um_info = { 2015 .name = "Linux user mode test driver", 2016 .autoconf = 1, 2017 .alt = -1, 2018 }; 2019 2020 static struct usbtest_info um2_info = { 2021 .name = "Linux user mode ISO test driver", 2022 .autoconf = 1, 2023 .iso = 1, 2024 .alt = -1, 2025 }; 2026 2027 #ifdef IBOT2 2028 /* this is a nice source of high speed bulk data; 2029 * uses an FX2, with firmware provided in the device 2030 */ 2031 static struct usbtest_info ibot2_info = { 2032 .name = "iBOT2 webcam", 2033 .ep_in = 2, 2034 .alt = -1, 2035 }; 2036 #endif 2037 2038 #ifdef GENERIC 2039 /* we can use any device to test control traffic */ 2040 static struct usbtest_info generic_info = { 2041 .name = "Generic USB device", 2042 .alt = -1, 2043 }; 2044 #endif 2045 2046 // FIXME remove this 2047 static struct usbtest_info hact_info = { 2048 .name = "FX2/hact", 2049 //.ep_in = 6, 2050 .ep_out = 2, 2051 .alt = -1, 2052 }; 2053 2054 2055 static struct usb_device_id id_table [] = { 2056 2057 { USB_DEVICE (0x0547, 0x1002), 2058 .driver_info = (unsigned long) &hact_info, 2059 }, 2060 2061 /*-------------------------------------------------------------*/ 2062 2063 /* EZ-USB devices which download firmware to replace (or in our 2064 * case augment) the default device implementation. 2065 */ 2066 2067 /* generic EZ-USB FX controller */ 2068 { USB_DEVICE (0x0547, 0x2235), 2069 .driver_info = (unsigned long) &ez1_info, 2070 }, 2071 2072 /* CY3671 development board with EZ-USB FX */ 2073 { USB_DEVICE (0x0547, 0x0080), 2074 .driver_info = (unsigned long) &ez1_info, 2075 }, 2076 2077 /* generic EZ-USB FX2 controller (or development board) */ 2078 { USB_DEVICE (0x04b4, 0x8613), 2079 .driver_info = (unsigned long) &ez2_info, 2080 }, 2081 2082 /* re-enumerated usb test device firmware */ 2083 { USB_DEVICE (0xfff0, 0xfff0), 2084 .driver_info = (unsigned long) &fw_info, 2085 }, 2086 2087 /* "Gadget Zero" firmware runs under Linux */ 2088 { USB_DEVICE (0x0525, 0xa4a0), 2089 .driver_info = (unsigned long) &gz_info, 2090 }, 2091 2092 /* so does a user-mode variant */ 2093 { USB_DEVICE (0x0525, 0xa4a4), 2094 .driver_info = (unsigned long) &um_info, 2095 }, 2096 2097 /* ... and a user-mode variant that talks iso */ 2098 { USB_DEVICE (0x0525, 0xa4a3), 2099 .driver_info = (unsigned long) &um2_info, 2100 }, 2101 2102 #ifdef KEYSPAN_19Qi 2103 /* Keyspan 19qi uses an21xx (original EZ-USB) */ 2104 // this does not coexist with the real Keyspan 19qi driver! 2105 { USB_DEVICE (0x06cd, 0x010b), 2106 .driver_info = (unsigned long) &ez1_info, 2107 }, 2108 #endif 2109 2110 /*-------------------------------------------------------------*/ 2111 2112 #ifdef IBOT2 2113 /* iBOT2 makes a nice source of high speed bulk-in data */ 2114 // this does not coexist with a real iBOT2 driver! 2115 { USB_DEVICE (0x0b62, 0x0059), 2116 .driver_info = (unsigned long) &ibot2_info, 2117 }, 2118 #endif 2119 2120 /*-------------------------------------------------------------*/ 2121 2122 #ifdef GENERIC 2123 /* module params can specify devices to use for control tests */ 2124 { .driver_info = (unsigned long) &generic_info, }, 2125 #endif 2126 2127 /*-------------------------------------------------------------*/ 2128 2129 { } 2130 }; 2131 MODULE_DEVICE_TABLE (usb, id_table); 2132 2133 static struct usb_driver usbtest_driver = { 2134 .name = "usbtest", 2135 .id_table = id_table, 2136 .probe = usbtest_probe, 2137 .ioctl = usbtest_ioctl, 2138 .disconnect = usbtest_disconnect, 2139 .suspend = usbtest_suspend, 2140 .resume = usbtest_resume, 2141 }; 2142 2143 /*-------------------------------------------------------------------------*/ 2144 2145 static int __init usbtest_init (void) 2146 { 2147 #ifdef GENERIC 2148 if (vendor) 2149 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product); 2150 #endif 2151 return usb_register (&usbtest_driver); 2152 } 2153 module_init (usbtest_init); 2154 2155 static void __exit usbtest_exit (void) 2156 { 2157 usb_deregister (&usbtest_driver); 2158 } 2159 module_exit (usbtest_exit); 2160 2161 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); 2162 MODULE_LICENSE ("GPL"); 2163 2164