1 #include <linux/kernel.h> 2 #include <linux/errno.h> 3 #include <linux/init.h> 4 #include <linux/slab.h> 5 #include <linux/mm.h> 6 #include <linux/module.h> 7 #include <linux/moduleparam.h> 8 #include <linux/scatterlist.h> 9 #include <linux/mutex.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 mutex lock; 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 ERROR(tdev, fmt, args...) \ 83 dev_err(&(tdev)->intf->dev , fmt , ## args) 84 #define WARNING(tdev, fmt, args...) \ 85 dev_warn(&(tdev)->intf->dev , fmt , ## args) 86 87 /*-------------------------------------------------------------------------*/ 88 89 static int 90 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf) 91 { 92 int tmp; 93 struct usb_host_interface *alt; 94 struct usb_host_endpoint *in, *out; 95 struct usb_host_endpoint *iso_in, *iso_out; 96 struct usb_device *udev; 97 98 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { 99 unsigned ep; 100 101 in = out = NULL; 102 iso_in = iso_out = NULL; 103 alt = intf->altsetting + tmp; 104 105 /* take the first altsetting with in-bulk + out-bulk; 106 * ignore other endpoints and altsetttings. 107 */ 108 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { 109 struct usb_host_endpoint *e; 110 111 e = alt->endpoint + ep; 112 switch (e->desc.bmAttributes) { 113 case USB_ENDPOINT_XFER_BULK: 114 break; 115 case USB_ENDPOINT_XFER_ISOC: 116 if (dev->info->iso) 117 goto try_iso; 118 // FALLTHROUGH 119 default: 120 continue; 121 } 122 if (usb_endpoint_dir_in(&e->desc)) { 123 if (!in) 124 in = e; 125 } else { 126 if (!out) 127 out = e; 128 } 129 continue; 130 try_iso: 131 if (usb_endpoint_dir_in(&e->desc)) { 132 if (!iso_in) 133 iso_in = e; 134 } else { 135 if (!iso_out) 136 iso_out = e; 137 } 138 } 139 if ((in && out) || iso_in || iso_out) 140 goto found; 141 } 142 return -EINVAL; 143 144 found: 145 udev = testdev_to_usbdev (dev); 146 if (alt->desc.bAlternateSetting != 0) { 147 tmp = usb_set_interface (udev, 148 alt->desc.bInterfaceNumber, 149 alt->desc.bAlternateSetting); 150 if (tmp < 0) 151 return tmp; 152 } 153 154 if (in) { 155 dev->in_pipe = usb_rcvbulkpipe (udev, 156 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 157 dev->out_pipe = usb_sndbulkpipe (udev, 158 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 159 } 160 if (iso_in) { 161 dev->iso_in = &iso_in->desc; 162 dev->in_iso_pipe = usb_rcvisocpipe (udev, 163 iso_in->desc.bEndpointAddress 164 & USB_ENDPOINT_NUMBER_MASK); 165 } 166 167 if (iso_out) { 168 dev->iso_out = &iso_out->desc; 169 dev->out_iso_pipe = usb_sndisocpipe (udev, 170 iso_out->desc.bEndpointAddress 171 & USB_ENDPOINT_NUMBER_MASK); 172 } 173 return 0; 174 } 175 176 /*-------------------------------------------------------------------------*/ 177 178 /* Support for testing basic non-queued I/O streams. 179 * 180 * These just package urbs as requests that can be easily canceled. 181 * Each urb's data buffer is dynamically allocated; callers can fill 182 * them with non-zero test data (or test for it) when appropriate. 183 */ 184 185 static void simple_callback (struct urb *urb) 186 { 187 complete(urb->context); 188 } 189 190 static struct urb *simple_alloc_urb ( 191 struct usb_device *udev, 192 int pipe, 193 unsigned long bytes 194 ) 195 { 196 struct urb *urb; 197 198 urb = usb_alloc_urb (0, GFP_KERNEL); 199 if (!urb) 200 return urb; 201 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); 202 urb->interval = (udev->speed == USB_SPEED_HIGH) 203 ? (INTERRUPT_RATE << 3) 204 : INTERRUPT_RATE; 205 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 206 if (usb_pipein (pipe)) 207 urb->transfer_flags |= URB_SHORT_NOT_OK; 208 urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL, 209 &urb->transfer_dma); 210 if (!urb->transfer_buffer) { 211 usb_free_urb (urb); 212 urb = NULL; 213 } else 214 memset (urb->transfer_buffer, 0, bytes); 215 return urb; 216 } 217 218 static unsigned pattern = 0; 219 static unsigned mod_pattern; 220 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR); 221 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)"); 222 223 static inline void simple_fill_buf (struct urb *urb) 224 { 225 unsigned i; 226 u8 *buf = urb->transfer_buffer; 227 unsigned len = urb->transfer_buffer_length; 228 229 switch (pattern) { 230 default: 231 // FALLTHROUGH 232 case 0: 233 memset (buf, 0, len); 234 break; 235 case 1: /* mod63 */ 236 for (i = 0; i < len; i++) 237 *buf++ = (u8) (i % 63); 238 break; 239 } 240 } 241 242 static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb) 243 { 244 unsigned i; 245 u8 expected; 246 u8 *buf = urb->transfer_buffer; 247 unsigned len = urb->actual_length; 248 249 for (i = 0; i < len; i++, buf++) { 250 switch (pattern) { 251 /* all-zeroes has no synchronization issues */ 252 case 0: 253 expected = 0; 254 break; 255 /* mod63 stays in sync with short-terminated transfers, 256 * or otherwise when host and gadget agree on how large 257 * each usb transfer request should be. resync is done 258 * with set_interface or set_config. 259 */ 260 case 1: /* mod63 */ 261 expected = i % 63; 262 break; 263 /* always fail unsupported patterns */ 264 default: 265 expected = !*buf; 266 break; 267 } 268 if (*buf == expected) 269 continue; 270 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected); 271 return -EINVAL; 272 } 273 return 0; 274 } 275 276 static void simple_free_urb (struct urb *urb) 277 { 278 usb_free_coherent(urb->dev, urb->transfer_buffer_length, 279 urb->transfer_buffer, urb->transfer_dma); 280 usb_free_urb (urb); 281 } 282 283 static int simple_io ( 284 struct usbtest_dev *tdev, 285 struct urb *urb, 286 int iterations, 287 int vary, 288 int expected, 289 const char *label 290 ) 291 { 292 struct usb_device *udev = urb->dev; 293 int max = urb->transfer_buffer_length; 294 struct completion completion; 295 int retval = 0; 296 297 urb->context = &completion; 298 while (retval == 0 && iterations-- > 0) { 299 init_completion (&completion); 300 if (usb_pipeout (urb->pipe)) 301 simple_fill_buf (urb); 302 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) 303 break; 304 305 /* NOTE: no timeouts; can't be broken out of by interrupt */ 306 wait_for_completion (&completion); 307 retval = urb->status; 308 urb->dev = udev; 309 if (retval == 0 && usb_pipein (urb->pipe)) 310 retval = simple_check_buf(tdev, urb); 311 312 if (vary) { 313 int len = urb->transfer_buffer_length; 314 315 len += vary; 316 len %= max; 317 if (len == 0) 318 len = (vary < max) ? vary : max; 319 urb->transfer_buffer_length = len; 320 } 321 322 /* FIXME if endpoint halted, clear halt (and log) */ 323 } 324 urb->transfer_buffer_length = max; 325 326 if (expected != retval) 327 dev_err(&udev->dev, 328 "%s failed, iterations left %d, status %d (not %d)\n", 329 label, iterations, retval, expected); 330 return retval; 331 } 332 333 334 /*-------------------------------------------------------------------------*/ 335 336 /* We use scatterlist primitives to test queued I/O. 337 * Yes, this also tests the scatterlist primitives. 338 */ 339 340 static void free_sglist (struct scatterlist *sg, int nents) 341 { 342 unsigned i; 343 344 if (!sg) 345 return; 346 for (i = 0; i < nents; i++) { 347 if (!sg_page(&sg[i])) 348 continue; 349 kfree (sg_virt(&sg[i])); 350 } 351 kfree (sg); 352 } 353 354 static struct scatterlist * 355 alloc_sglist (int nents, int max, int vary) 356 { 357 struct scatterlist *sg; 358 unsigned i; 359 unsigned size = max; 360 361 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL); 362 if (!sg) 363 return NULL; 364 sg_init_table(sg, nents); 365 366 for (i = 0; i < nents; i++) { 367 char *buf; 368 unsigned j; 369 370 buf = kzalloc (size, GFP_KERNEL); 371 if (!buf) { 372 free_sglist (sg, i); 373 return NULL; 374 } 375 376 /* kmalloc pages are always physically contiguous! */ 377 sg_set_buf(&sg[i], buf, size); 378 379 switch (pattern) { 380 case 0: 381 /* already zeroed */ 382 break; 383 case 1: 384 for (j = 0; j < size; j++) 385 *buf++ = (u8) (j % 63); 386 break; 387 } 388 389 if (vary) { 390 size += vary; 391 size %= max; 392 if (size == 0) 393 size = (vary < max) ? vary : max; 394 } 395 } 396 397 return sg; 398 } 399 400 static int perform_sglist ( 401 struct usbtest_dev *tdev, 402 unsigned iterations, 403 int pipe, 404 struct usb_sg_request *req, 405 struct scatterlist *sg, 406 int nents 407 ) 408 { 409 struct usb_device *udev = testdev_to_usbdev(tdev); 410 int retval = 0; 411 412 while (retval == 0 && iterations-- > 0) { 413 retval = usb_sg_init (req, udev, pipe, 414 (udev->speed == USB_SPEED_HIGH) 415 ? (INTERRUPT_RATE << 3) 416 : INTERRUPT_RATE, 417 sg, nents, 0, GFP_KERNEL); 418 419 if (retval) 420 break; 421 usb_sg_wait (req); 422 retval = req->status; 423 424 /* FIXME check resulting data pattern */ 425 426 /* FIXME if endpoint halted, clear halt (and log) */ 427 } 428 429 // FIXME for unlink or fault handling tests, don't report 430 // failure if retval is as we expected ... 431 432 if (retval) 433 ERROR(tdev, "perform_sglist failed, " 434 "iterations left %d, status %d\n", 435 iterations, retval); 436 return retval; 437 } 438 439 440 /*-------------------------------------------------------------------------*/ 441 442 /* unqueued control message testing 443 * 444 * there's a nice set of device functional requirements in chapter 9 of the 445 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use 446 * special test firmware. 447 * 448 * we know the device is configured (or suspended) by the time it's visible 449 * through usbfs. we can't change that, so we won't test enumeration (which 450 * worked 'well enough' to get here, this time), power management (ditto), 451 * or remote wakeup (which needs human interaction). 452 */ 453 454 static unsigned realworld = 1; 455 module_param (realworld, uint, 0); 456 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); 457 458 static int get_altsetting (struct usbtest_dev *dev) 459 { 460 struct usb_interface *iface = dev->intf; 461 struct usb_device *udev = interface_to_usbdev (iface); 462 int retval; 463 464 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 465 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, 466 0, iface->altsetting [0].desc.bInterfaceNumber, 467 dev->buf, 1, USB_CTRL_GET_TIMEOUT); 468 switch (retval) { 469 case 1: 470 return dev->buf [0]; 471 case 0: 472 retval = -ERANGE; 473 // FALLTHROUGH 474 default: 475 return retval; 476 } 477 } 478 479 static int set_altsetting (struct usbtest_dev *dev, int alternate) 480 { 481 struct usb_interface *iface = dev->intf; 482 struct usb_device *udev; 483 484 if (alternate < 0 || alternate >= 256) 485 return -EINVAL; 486 487 udev = interface_to_usbdev (iface); 488 return usb_set_interface (udev, 489 iface->altsetting [0].desc.bInterfaceNumber, 490 alternate); 491 } 492 493 static int is_good_config(struct usbtest_dev *tdev, int len) 494 { 495 struct usb_config_descriptor *config; 496 497 if (len < sizeof *config) 498 return 0; 499 config = (struct usb_config_descriptor *) tdev->buf; 500 501 switch (config->bDescriptorType) { 502 case USB_DT_CONFIG: 503 case USB_DT_OTHER_SPEED_CONFIG: 504 if (config->bLength != 9) { 505 ERROR(tdev, "bogus config descriptor length\n"); 506 return 0; 507 } 508 /* this bit 'must be 1' but often isn't */ 509 if (!realworld && !(config->bmAttributes & 0x80)) { 510 ERROR(tdev, "high bit of config attributes not set\n"); 511 return 0; 512 } 513 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 514 ERROR(tdev, "reserved config bits set\n"); 515 return 0; 516 } 517 break; 518 default: 519 return 0; 520 } 521 522 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ 523 return 1; 524 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 525 return 1; 526 ERROR(tdev, "bogus config descriptor read size\n"); 527 return 0; 528 } 529 530 /* sanity test for standard requests working with usb_control_mesg() and some 531 * of the utility functions which use it. 532 * 533 * this doesn't test how endpoint halts behave or data toggles get set, since 534 * we won't do I/O to bulk/interrupt endpoints here (which is how to change 535 * halt or toggle). toggle testing is impractical without support from hcds. 536 * 537 * this avoids failing devices linux would normally work with, by not testing 538 * config/altsetting operations for devices that only support their defaults. 539 * such devices rarely support those needless operations. 540 * 541 * NOTE that since this is a sanity test, it's not examining boundary cases 542 * to see if usbcore, hcd, and device all behave right. such testing would 543 * involve varied read sizes and other operation sequences. 544 */ 545 static int ch9_postconfig (struct usbtest_dev *dev) 546 { 547 struct usb_interface *iface = dev->intf; 548 struct usb_device *udev = interface_to_usbdev (iface); 549 int i, alt, retval; 550 551 /* [9.2.3] if there's more than one altsetting, we need to be able to 552 * set and get each one. mostly trusts the descriptors from usbcore. 553 */ 554 for (i = 0; i < iface->num_altsetting; i++) { 555 556 /* 9.2.3 constrains the range here */ 557 alt = iface->altsetting [i].desc.bAlternateSetting; 558 if (alt < 0 || alt >= iface->num_altsetting) { 559 dev_err(&iface->dev, 560 "invalid alt [%d].bAltSetting = %d\n", 561 i, alt); 562 } 563 564 /* [real world] get/set unimplemented if there's only one */ 565 if (realworld && iface->num_altsetting == 1) 566 continue; 567 568 /* [9.4.10] set_interface */ 569 retval = set_altsetting (dev, alt); 570 if (retval) { 571 dev_err(&iface->dev, "can't set_interface = %d, %d\n", 572 alt, retval); 573 return retval; 574 } 575 576 /* [9.4.4] get_interface always works */ 577 retval = get_altsetting (dev); 578 if (retval != alt) { 579 dev_err(&iface->dev, "get alt should be %d, was %d\n", 580 alt, retval); 581 return (retval < 0) ? retval : -EDOM; 582 } 583 584 } 585 586 /* [real world] get_config unimplemented if there's only one */ 587 if (!realworld || udev->descriptor.bNumConfigurations != 1) { 588 int expected = udev->actconfig->desc.bConfigurationValue; 589 590 /* [9.4.2] get_configuration always works 591 * ... although some cheap devices (like one TI Hub I've got) 592 * won't return config descriptors except before set_config. 593 */ 594 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 595 USB_REQ_GET_CONFIGURATION, 596 USB_DIR_IN | USB_RECIP_DEVICE, 597 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 598 if (retval != 1 || dev->buf [0] != expected) { 599 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n", 600 retval, dev->buf[0], expected); 601 return (retval < 0) ? retval : -EDOM; 602 } 603 } 604 605 /* there's always [9.4.3] a device descriptor [9.6.1] */ 606 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, 607 dev->buf, sizeof udev->descriptor); 608 if (retval != sizeof udev->descriptor) { 609 dev_err(&iface->dev, "dev descriptor --> %d\n", retval); 610 return (retval < 0) ? retval : -EDOM; 611 } 612 613 /* there's always [9.4.3] at least one config descriptor [9.6.3] */ 614 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 615 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, 616 dev->buf, TBUF_SIZE); 617 if (!is_good_config(dev, retval)) { 618 dev_err(&iface->dev, 619 "config [%d] descriptor --> %d\n", 620 i, retval); 621 return (retval < 0) ? retval : -EDOM; 622 } 623 624 // FIXME cross-checking udev->config[i] to make sure usbcore 625 // parsed it right (etc) would be good testing paranoia 626 } 627 628 /* and sometimes [9.2.6.6] speed dependent descriptors */ 629 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { 630 struct usb_qualifier_descriptor *d = NULL; 631 632 /* device qualifier [9.6.2] */ 633 retval = usb_get_descriptor (udev, 634 USB_DT_DEVICE_QUALIFIER, 0, dev->buf, 635 sizeof (struct usb_qualifier_descriptor)); 636 if (retval == -EPIPE) { 637 if (udev->speed == USB_SPEED_HIGH) { 638 dev_err(&iface->dev, 639 "hs dev qualifier --> %d\n", 640 retval); 641 return (retval < 0) ? retval : -EDOM; 642 } 643 /* usb2.0 but not high-speed capable; fine */ 644 } else if (retval != sizeof (struct usb_qualifier_descriptor)) { 645 dev_err(&iface->dev, "dev qualifier --> %d\n", retval); 646 return (retval < 0) ? retval : -EDOM; 647 } else 648 d = (struct usb_qualifier_descriptor *) dev->buf; 649 650 /* might not have [9.6.2] any other-speed configs [9.6.4] */ 651 if (d) { 652 unsigned max = d->bNumConfigurations; 653 for (i = 0; i < max; i++) { 654 retval = usb_get_descriptor (udev, 655 USB_DT_OTHER_SPEED_CONFIG, i, 656 dev->buf, TBUF_SIZE); 657 if (!is_good_config(dev, retval)) { 658 dev_err(&iface->dev, 659 "other speed config --> %d\n", 660 retval); 661 return (retval < 0) ? retval : -EDOM; 662 } 663 } 664 } 665 } 666 // FIXME fetch strings from at least the device descriptor 667 668 /* [9.4.5] get_status always works */ 669 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); 670 if (retval != 2) { 671 dev_err(&iface->dev, "get dev status --> %d\n", retval); 672 return (retval < 0) ? retval : -EDOM; 673 } 674 675 // FIXME configuration.bmAttributes says if we could try to set/clear 676 // the device's remote wakeup feature ... if we can, test that here 677 678 retval = usb_get_status (udev, USB_RECIP_INTERFACE, 679 iface->altsetting [0].desc.bInterfaceNumber, dev->buf); 680 if (retval != 2) { 681 dev_err(&iface->dev, "get interface status --> %d\n", retval); 682 return (retval < 0) ? retval : -EDOM; 683 } 684 // FIXME get status for each endpoint in the interface 685 686 return 0; 687 } 688 689 /*-------------------------------------------------------------------------*/ 690 691 /* use ch9 requests to test whether: 692 * (a) queues work for control, keeping N subtests queued and 693 * active (auto-resubmit) for M loops through the queue. 694 * (b) protocol stalls (control-only) will autorecover. 695 * it's not like bulk/intr; no halt clearing. 696 * (c) short control reads are reported and handled. 697 * (d) queues are always processed in-order 698 */ 699 700 struct ctrl_ctx { 701 spinlock_t lock; 702 struct usbtest_dev *dev; 703 struct completion complete; 704 unsigned count; 705 unsigned pending; 706 int status; 707 struct urb **urb; 708 struct usbtest_param *param; 709 int last; 710 }; 711 712 #define NUM_SUBCASES 15 /* how many test subcases here? */ 713 714 struct subcase { 715 struct usb_ctrlrequest setup; 716 int number; 717 int expected; 718 }; 719 720 static void ctrl_complete (struct urb *urb) 721 { 722 struct ctrl_ctx *ctx = urb->context; 723 struct usb_ctrlrequest *reqp; 724 struct subcase *subcase; 725 int status = urb->status; 726 727 reqp = (struct usb_ctrlrequest *)urb->setup_packet; 728 subcase = container_of (reqp, struct subcase, setup); 729 730 spin_lock (&ctx->lock); 731 ctx->count--; 732 ctx->pending--; 733 734 /* queue must transfer and complete in fifo order, unless 735 * usb_unlink_urb() is used to unlink something not at the 736 * physical queue head (not tested). 737 */ 738 if (subcase->number > 0) { 739 if ((subcase->number - ctx->last) != 1) { 740 ERROR(ctx->dev, 741 "subcase %d completed out of order, last %d\n", 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 ((status == -subcase->expected /* happened */ 760 || 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 ERROR(ctx->dev, "subtest %d error, status %d\n", 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 ERROR(ctx->dev, "control queue %02x.%02x, err %d, " 778 "%d left, subcase %d, len %d/%d\n", 779 reqp->bRequestType, reqp->bRequest, 780 status, ctx->count, subcase->number, 781 urb->actual_length, 782 urb->transfer_buffer_length); 783 784 /* FIXME this "unlink everything" exit route should 785 * be a separate test case. 786 */ 787 788 /* unlink whatever's still pending */ 789 for (i = 1; i < ctx->param->sglen; i++) { 790 struct urb *u = ctx->urb [ 791 (i + subcase->number) 792 % ctx->param->sglen]; 793 794 if (u == urb || !u->dev) 795 continue; 796 spin_unlock(&ctx->lock); 797 status = usb_unlink_urb (u); 798 spin_lock(&ctx->lock); 799 switch (status) { 800 case -EINPROGRESS: 801 case -EBUSY: 802 case -EIDRM: 803 continue; 804 default: 805 ERROR(ctx->dev, "urb unlink --> %d\n", 806 status); 807 } 808 } 809 status = ctx->status; 810 } 811 } 812 813 /* resubmit if we need to, else mark this as done */ 814 if ((status == 0) && (ctx->pending < ctx->count)) { 815 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) { 816 ERROR(ctx->dev, 817 "can't resubmit ctrl %02x.%02x, err %d\n", 818 reqp->bRequestType, reqp->bRequest, status); 819 urb->dev = NULL; 820 } else 821 ctx->pending++; 822 } else 823 urb->dev = NULL; 824 825 /* signal completion when nothing's queued */ 826 if (ctx->pending == 0) 827 complete (&ctx->complete); 828 spin_unlock (&ctx->lock); 829 } 830 831 static int 832 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) 833 { 834 struct usb_device *udev = testdev_to_usbdev (dev); 835 struct urb **urb; 836 struct ctrl_ctx context; 837 int i; 838 839 spin_lock_init (&context.lock); 840 context.dev = dev; 841 init_completion (&context.complete); 842 context.count = param->sglen * param->iterations; 843 context.pending = 0; 844 context.status = -ENOMEM; 845 context.param = param; 846 context.last = -1; 847 848 /* allocate and init the urbs we'll queue. 849 * as with bulk/intr sglists, sglen is the queue depth; it also 850 * controls which subtests run (more tests than sglen) or rerun. 851 */ 852 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); 853 if (!urb) 854 return -ENOMEM; 855 for (i = 0; i < param->sglen; i++) { 856 int pipe = usb_rcvctrlpipe (udev, 0); 857 unsigned len; 858 struct urb *u; 859 struct usb_ctrlrequest req; 860 struct subcase *reqp; 861 862 /* sign of this variable means: 863 * -: tested code must return this (negative) error code 864 * +: tested code may return this (negative too) error code 865 */ 866 int expected = 0; 867 868 /* requests here are mostly expected to succeed on any 869 * device, but some are chosen to trigger protocol stalls 870 * or short reads. 871 */ 872 memset (&req, 0, sizeof req); 873 req.bRequest = USB_REQ_GET_DESCRIPTOR; 874 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 875 876 switch (i % NUM_SUBCASES) { 877 case 0: // get device descriptor 878 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); 879 len = sizeof (struct usb_device_descriptor); 880 break; 881 case 1: // get first config descriptor (only) 882 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 883 len = sizeof (struct usb_config_descriptor); 884 break; 885 case 2: // get altsetting (OFTEN STALLS) 886 req.bRequest = USB_REQ_GET_INTERFACE; 887 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 888 // index = 0 means first interface 889 len = 1; 890 expected = EPIPE; 891 break; 892 case 3: // get interface status 893 req.bRequest = USB_REQ_GET_STATUS; 894 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 895 // interface 0 896 len = 2; 897 break; 898 case 4: // get device status 899 req.bRequest = USB_REQ_GET_STATUS; 900 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 901 len = 2; 902 break; 903 case 5: // get device qualifier (MAY STALL) 904 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); 905 len = sizeof (struct usb_qualifier_descriptor); 906 if (udev->speed != USB_SPEED_HIGH) 907 expected = EPIPE; 908 break; 909 case 6: // get first config descriptor, plus interface 910 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 911 len = sizeof (struct usb_config_descriptor); 912 len += sizeof (struct usb_interface_descriptor); 913 break; 914 case 7: // get interface descriptor (ALWAYS STALLS) 915 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 916 // interface == 0 917 len = sizeof (struct usb_interface_descriptor); 918 expected = -EPIPE; 919 break; 920 // NOTE: two consecutive stalls in the queue here. 921 // that tests fault recovery a bit more aggressively. 922 case 8: // clear endpoint halt (MAY STALL) 923 req.bRequest = USB_REQ_CLEAR_FEATURE; 924 req.bRequestType = USB_RECIP_ENDPOINT; 925 // wValue 0 == ep halt 926 // wIndex 0 == ep0 (shouldn't halt!) 927 len = 0; 928 pipe = usb_sndctrlpipe (udev, 0); 929 expected = EPIPE; 930 break; 931 case 9: // get endpoint status 932 req.bRequest = USB_REQ_GET_STATUS; 933 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; 934 // endpoint 0 935 len = 2; 936 break; 937 case 10: // trigger short read (EREMOTEIO) 938 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 939 len = 1024; 940 expected = -EREMOTEIO; 941 break; 942 // NOTE: two consecutive _different_ faults in the queue. 943 case 11: // get endpoint descriptor (ALWAYS STALLS) 944 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); 945 // endpoint == 0 946 len = sizeof (struct usb_interface_descriptor); 947 expected = EPIPE; 948 break; 949 // NOTE: sometimes even a third fault in the queue! 950 case 12: // get string 0 descriptor (MAY STALL) 951 req.wValue = cpu_to_le16 (USB_DT_STRING << 8); 952 // string == 0, for language IDs 953 len = sizeof (struct usb_interface_descriptor); 954 // may succeed when > 4 languages 955 expected = EREMOTEIO; // or EPIPE, if no strings 956 break; 957 case 13: // short read, resembling case 10 958 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 959 // last data packet "should" be DATA1, not DATA0 960 len = 1024 - udev->descriptor.bMaxPacketSize0; 961 expected = -EREMOTEIO; 962 break; 963 case 14: // short read; try to fill the last packet 964 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); 965 /* device descriptor size == 18 bytes */ 966 len = udev->descriptor.bMaxPacketSize0; 967 switch (len) { 968 case 8: len = 24; break; 969 case 16: len = 32; break; 970 } 971 expected = -EREMOTEIO; 972 break; 973 default: 974 ERROR(dev, "bogus number of ctrl queue testcases!\n"); 975 context.status = -EINVAL; 976 goto cleanup; 977 } 978 req.wLength = cpu_to_le16 (len); 979 urb [i] = u = simple_alloc_urb (udev, pipe, len); 980 if (!u) 981 goto cleanup; 982 983 reqp = kmalloc(sizeof *reqp, GFP_KERNEL); 984 if (!reqp) 985 goto cleanup; 986 reqp->setup = req; 987 reqp->number = i % NUM_SUBCASES; 988 reqp->expected = expected; 989 u->setup_packet = (char *) &reqp->setup; 990 991 u->context = &context; 992 u->complete = ctrl_complete; 993 } 994 995 /* queue the urbs */ 996 context.urb = urb; 997 spin_lock_irq (&context.lock); 998 for (i = 0; i < param->sglen; i++) { 999 context.status = usb_submit_urb (urb [i], GFP_ATOMIC); 1000 if (context.status != 0) { 1001 ERROR(dev, "can't submit urb[%d], status %d\n", 1002 i, context.status); 1003 context.count = context.pending; 1004 break; 1005 } 1006 context.pending++; 1007 } 1008 spin_unlock_irq (&context.lock); 1009 1010 /* FIXME set timer and time out; provide a disconnect hook */ 1011 1012 /* wait for the last one to complete */ 1013 if (context.pending > 0) 1014 wait_for_completion (&context.complete); 1015 1016 cleanup: 1017 for (i = 0; i < param->sglen; i++) { 1018 if (!urb [i]) 1019 continue; 1020 urb [i]->dev = udev; 1021 kfree(urb[i]->setup_packet); 1022 simple_free_urb (urb [i]); 1023 } 1024 kfree (urb); 1025 return context.status; 1026 } 1027 #undef NUM_SUBCASES 1028 1029 1030 /*-------------------------------------------------------------------------*/ 1031 1032 static void unlink1_callback (struct urb *urb) 1033 { 1034 int status = urb->status; 1035 1036 // we "know" -EPIPE (stall) never happens 1037 if (!status) 1038 status = usb_submit_urb (urb, GFP_ATOMIC); 1039 if (status) { 1040 urb->status = status; 1041 complete(urb->context); 1042 } 1043 } 1044 1045 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) 1046 { 1047 struct urb *urb; 1048 struct completion completion; 1049 int retval = 0; 1050 1051 init_completion (&completion); 1052 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); 1053 if (!urb) 1054 return -ENOMEM; 1055 urb->context = &completion; 1056 urb->complete = unlink1_callback; 1057 1058 /* keep the endpoint busy. there are lots of hc/hcd-internal 1059 * states, and testing should get to all of them over time. 1060 * 1061 * FIXME want additional tests for when endpoint is STALLing 1062 * due to errors, or is just NAKing requests. 1063 */ 1064 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) { 1065 dev_err(&dev->intf->dev, "submit fail %d\n", retval); 1066 return retval; 1067 } 1068 1069 /* unlinking that should always work. variable delay tests more 1070 * hcd states and code paths, even with little other system load. 1071 */ 1072 msleep (jiffies % (2 * INTERRUPT_RATE)); 1073 if (async) { 1074 while (!completion_done(&completion)) { 1075 retval = usb_unlink_urb(urb); 1076 1077 switch (retval) { 1078 case -EBUSY: 1079 case -EIDRM: 1080 /* we can't unlink urbs while they're completing 1081 * or if they've completed, and we haven't 1082 * resubmitted. "normal" drivers would prevent 1083 * resubmission, but since we're testing unlink 1084 * paths, we can't. 1085 */ 1086 ERROR(dev, "unlink retry\n"); 1087 continue; 1088 case 0: 1089 case -EINPROGRESS: 1090 break; 1091 1092 default: 1093 dev_err(&dev->intf->dev, 1094 "unlink fail %d\n", retval); 1095 return retval; 1096 } 1097 1098 break; 1099 } 1100 } else 1101 usb_kill_urb (urb); 1102 1103 wait_for_completion (&completion); 1104 retval = urb->status; 1105 simple_free_urb (urb); 1106 1107 if (async) 1108 return (retval == -ECONNRESET) ? 0 : retval - 1000; 1109 else 1110 return (retval == -ENOENT || retval == -EPERM) ? 1111 0 : retval - 2000; 1112 } 1113 1114 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len) 1115 { 1116 int retval = 0; 1117 1118 /* test sync and async paths */ 1119 retval = unlink1 (dev, pipe, len, 1); 1120 if (!retval) 1121 retval = unlink1 (dev, pipe, len, 0); 1122 return retval; 1123 } 1124 1125 /*-------------------------------------------------------------------------*/ 1126 1127 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) 1128 { 1129 int retval; 1130 u16 status; 1131 1132 /* shouldn't look or act halted */ 1133 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1134 if (retval < 0) { 1135 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n", 1136 ep, retval); 1137 return retval; 1138 } 1139 if (status != 0) { 1140 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status); 1141 return -EINVAL; 1142 } 1143 retval = simple_io(tdev, urb, 1, 0, 0, __func__); 1144 if (retval != 0) 1145 return -EINVAL; 1146 return 0; 1147 } 1148 1149 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) 1150 { 1151 int retval; 1152 u16 status; 1153 1154 /* should look and act halted */ 1155 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1156 if (retval < 0) { 1157 ERROR(tdev, "ep %02x couldn't get halt status, %d\n", 1158 ep, retval); 1159 return retval; 1160 } 1161 le16_to_cpus(&status); 1162 if (status != 1) { 1163 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); 1164 return -EINVAL; 1165 } 1166 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__); 1167 if (retval != -EPIPE) 1168 return -EINVAL; 1169 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted"); 1170 if (retval != -EPIPE) 1171 return -EINVAL; 1172 return 0; 1173 } 1174 1175 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) 1176 { 1177 int retval; 1178 1179 /* shouldn't look or act halted now */ 1180 retval = verify_not_halted(tdev, ep, urb); 1181 if (retval < 0) 1182 return retval; 1183 1184 /* set halt (protocol test only), verify it worked */ 1185 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), 1186 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, 1187 USB_ENDPOINT_HALT, ep, 1188 NULL, 0, USB_CTRL_SET_TIMEOUT); 1189 if (retval < 0) { 1190 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval); 1191 return retval; 1192 } 1193 retval = verify_halted(tdev, ep, urb); 1194 if (retval < 0) 1195 return retval; 1196 1197 /* clear halt (tests API + protocol), verify it worked */ 1198 retval = usb_clear_halt (urb->dev, urb->pipe); 1199 if (retval < 0) { 1200 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval); 1201 return retval; 1202 } 1203 retval = verify_not_halted(tdev, ep, urb); 1204 if (retval < 0) 1205 return retval; 1206 1207 /* NOTE: could also verify SET_INTERFACE clear halts ... */ 1208 1209 return 0; 1210 } 1211 1212 static int halt_simple (struct usbtest_dev *dev) 1213 { 1214 int ep; 1215 int retval = 0; 1216 struct urb *urb; 1217 1218 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); 1219 if (urb == NULL) 1220 return -ENOMEM; 1221 1222 if (dev->in_pipe) { 1223 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; 1224 urb->pipe = dev->in_pipe; 1225 retval = test_halt(dev, ep, urb); 1226 if (retval < 0) 1227 goto done; 1228 } 1229 1230 if (dev->out_pipe) { 1231 ep = usb_pipeendpoint (dev->out_pipe); 1232 urb->pipe = dev->out_pipe; 1233 retval = test_halt(dev, ep, urb); 1234 } 1235 done: 1236 simple_free_urb (urb); 1237 return retval; 1238 } 1239 1240 /*-------------------------------------------------------------------------*/ 1241 1242 /* Control OUT tests use the vendor control requests from Intel's 1243 * USB 2.0 compliance test device: write a buffer, read it back. 1244 * 1245 * Intel's spec only _requires_ that it work for one packet, which 1246 * is pretty weak. Some HCDs place limits here; most devices will 1247 * need to be able to handle more than one OUT data packet. We'll 1248 * try whatever we're told to try. 1249 */ 1250 static int ctrl_out (struct usbtest_dev *dev, 1251 unsigned count, unsigned length, unsigned vary) 1252 { 1253 unsigned i, j, len; 1254 int retval; 1255 u8 *buf; 1256 char *what = "?"; 1257 struct usb_device *udev; 1258 1259 if (length < 1 || length > 0xffff || vary >= length) 1260 return -EINVAL; 1261 1262 buf = kmalloc(length, GFP_KERNEL); 1263 if (!buf) 1264 return -ENOMEM; 1265 1266 udev = testdev_to_usbdev (dev); 1267 len = length; 1268 retval = 0; 1269 1270 /* NOTE: hardware might well act differently if we pushed it 1271 * with lots back-to-back queued requests. 1272 */ 1273 for (i = 0; i < count; i++) { 1274 /* write patterned data */ 1275 for (j = 0; j < len; j++) 1276 buf [j] = i + j; 1277 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), 1278 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, 1279 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); 1280 if (retval != len) { 1281 what = "write"; 1282 if (retval >= 0) { 1283 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n", 1284 retval, len); 1285 retval = -EBADMSG; 1286 } 1287 break; 1288 } 1289 1290 /* read it back -- assuming nothing intervened!! */ 1291 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), 1292 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, 1293 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); 1294 if (retval != len) { 1295 what = "read"; 1296 if (retval >= 0) { 1297 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n", 1298 retval, len); 1299 retval = -EBADMSG; 1300 } 1301 break; 1302 } 1303 1304 /* fail if we can't verify */ 1305 for (j = 0; j < len; j++) { 1306 if (buf [j] != (u8) (i + j)) { 1307 ERROR(dev, "ctrl_out, byte %d is %d not %d\n", 1308 j, buf [j], (u8) i + j); 1309 retval = -EBADMSG; 1310 break; 1311 } 1312 } 1313 if (retval < 0) { 1314 what = "verify"; 1315 break; 1316 } 1317 1318 len += vary; 1319 1320 /* [real world] the "zero bytes IN" case isn't really used. 1321 * hardware can easily trip up in this weird case, since its 1322 * status stage is IN, not OUT like other ep0in transfers. 1323 */ 1324 if (len > length) 1325 len = realworld ? 1 : 0; 1326 } 1327 1328 if (retval < 0) 1329 ERROR (dev, "ctrl_out %s failed, code %d, count %d\n", 1330 what, retval, i); 1331 1332 kfree (buf); 1333 return retval; 1334 } 1335 1336 /*-------------------------------------------------------------------------*/ 1337 1338 /* ISO tests ... mimics common usage 1339 * - buffer length is split into N packets (mostly maxpacket sized) 1340 * - multi-buffers according to sglen 1341 */ 1342 1343 struct iso_context { 1344 unsigned count; 1345 unsigned pending; 1346 spinlock_t lock; 1347 struct completion done; 1348 int submit_error; 1349 unsigned long errors; 1350 unsigned long packet_count; 1351 struct usbtest_dev *dev; 1352 }; 1353 1354 static void iso_callback (struct urb *urb) 1355 { 1356 struct iso_context *ctx = urb->context; 1357 1358 spin_lock(&ctx->lock); 1359 ctx->count--; 1360 1361 ctx->packet_count += urb->number_of_packets; 1362 if (urb->error_count > 0) 1363 ctx->errors += urb->error_count; 1364 else if (urb->status != 0) 1365 ctx->errors += urb->number_of_packets; 1366 1367 if (urb->status == 0 && ctx->count > (ctx->pending - 1) 1368 && !ctx->submit_error) { 1369 int status = usb_submit_urb (urb, GFP_ATOMIC); 1370 switch (status) { 1371 case 0: 1372 goto done; 1373 default: 1374 dev_err(&ctx->dev->intf->dev, 1375 "iso resubmit err %d\n", 1376 status); 1377 /* FALLTHROUGH */ 1378 case -ENODEV: /* disconnected */ 1379 case -ESHUTDOWN: /* endpoint disabled */ 1380 ctx->submit_error = 1; 1381 break; 1382 } 1383 } 1384 1385 ctx->pending--; 1386 if (ctx->pending == 0) { 1387 if (ctx->errors) 1388 dev_err(&ctx->dev->intf->dev, 1389 "iso test, %lu errors out of %lu\n", 1390 ctx->errors, ctx->packet_count); 1391 complete (&ctx->done); 1392 } 1393 done: 1394 spin_unlock(&ctx->lock); 1395 } 1396 1397 static struct urb *iso_alloc_urb ( 1398 struct usb_device *udev, 1399 int pipe, 1400 struct usb_endpoint_descriptor *desc, 1401 long bytes 1402 ) 1403 { 1404 struct urb *urb; 1405 unsigned i, maxp, packets; 1406 1407 if (bytes < 0 || !desc) 1408 return NULL; 1409 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); 1410 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); 1411 packets = DIV_ROUND_UP(bytes, maxp); 1412 1413 urb = usb_alloc_urb (packets, GFP_KERNEL); 1414 if (!urb) 1415 return urb; 1416 urb->dev = udev; 1417 urb->pipe = pipe; 1418 1419 urb->number_of_packets = packets; 1420 urb->transfer_buffer_length = bytes; 1421 urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL, 1422 &urb->transfer_dma); 1423 if (!urb->transfer_buffer) { 1424 usb_free_urb (urb); 1425 return NULL; 1426 } 1427 memset (urb->transfer_buffer, 0, bytes); 1428 for (i = 0; i < packets; i++) { 1429 /* here, only the last packet will be short */ 1430 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); 1431 bytes -= urb->iso_frame_desc[i].length; 1432 1433 urb->iso_frame_desc[i].offset = maxp * i; 1434 } 1435 1436 urb->complete = iso_callback; 1437 // urb->context = SET BY CALLER 1438 urb->interval = 1 << (desc->bInterval - 1); 1439 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 1440 return urb; 1441 } 1442 1443 static int 1444 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, 1445 int pipe, struct usb_endpoint_descriptor *desc) 1446 { 1447 struct iso_context context; 1448 struct usb_device *udev; 1449 unsigned i; 1450 unsigned long packets = 0; 1451 int status = 0; 1452 struct urb *urbs[10]; /* FIXME no limit */ 1453 1454 if (param->sglen > 10) 1455 return -EDOM; 1456 1457 memset(&context, 0, sizeof context); 1458 context.count = param->iterations * param->sglen; 1459 context.dev = dev; 1460 init_completion (&context.done); 1461 spin_lock_init (&context.lock); 1462 1463 memset (urbs, 0, sizeof urbs); 1464 udev = testdev_to_usbdev (dev); 1465 dev_info(&dev->intf->dev, 1466 "... iso period %d %sframes, wMaxPacket %04x\n", 1467 1 << (desc->bInterval - 1), 1468 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1469 le16_to_cpu(desc->wMaxPacketSize)); 1470 1471 for (i = 0; i < param->sglen; i++) { 1472 urbs [i] = iso_alloc_urb (udev, pipe, desc, 1473 param->length); 1474 if (!urbs [i]) { 1475 status = -ENOMEM; 1476 goto fail; 1477 } 1478 packets += urbs[i]->number_of_packets; 1479 urbs [i]->context = &context; 1480 } 1481 packets *= param->iterations; 1482 dev_info(&dev->intf->dev, 1483 "... total %lu msec (%lu packets)\n", 1484 (packets * (1 << (desc->bInterval - 1))) 1485 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1486 packets); 1487 1488 spin_lock_irq (&context.lock); 1489 for (i = 0; i < param->sglen; i++) { 1490 ++context.pending; 1491 status = usb_submit_urb (urbs [i], GFP_ATOMIC); 1492 if (status < 0) { 1493 ERROR (dev, "submit iso[%d], error %d\n", i, status); 1494 if (i == 0) { 1495 spin_unlock_irq (&context.lock); 1496 goto fail; 1497 } 1498 1499 simple_free_urb (urbs [i]); 1500 urbs[i] = NULL; 1501 context.pending--; 1502 context.submit_error = 1; 1503 break; 1504 } 1505 } 1506 spin_unlock_irq (&context.lock); 1507 1508 wait_for_completion (&context.done); 1509 1510 for (i = 0; i < param->sglen; i++) { 1511 if (urbs[i]) 1512 simple_free_urb(urbs[i]); 1513 } 1514 /* 1515 * Isochronous transfers are expected to fail sometimes. As an 1516 * arbitrary limit, we will report an error if any submissions 1517 * fail or if the transfer failure rate is > 10%. 1518 */ 1519 if (status != 0) 1520 ; 1521 else if (context.submit_error) 1522 status = -EACCES; 1523 else if (context.errors > context.packet_count / 10) 1524 status = -EIO; 1525 return status; 1526 1527 fail: 1528 for (i = 0; i < param->sglen; i++) { 1529 if (urbs [i]) 1530 simple_free_urb (urbs [i]); 1531 } 1532 return status; 1533 } 1534 1535 /*-------------------------------------------------------------------------*/ 1536 1537 /* We only have this one interface to user space, through usbfs. 1538 * User mode code can scan usbfs to find N different devices (maybe on 1539 * different busses) to use when testing, and allocate one thread per 1540 * test. So discovery is simplified, and we have no device naming issues. 1541 * 1542 * Don't use these only as stress/load tests. Use them along with with 1543 * other USB bus activity: plugging, unplugging, mousing, mp3 playback, 1544 * video capture, and so on. Run different tests at different times, in 1545 * different sequences. Nothing here should interact with other devices, 1546 * except indirectly by consuming USB bandwidth and CPU resources for test 1547 * threads and request completion. But the only way to know that for sure 1548 * is to test when HC queues are in use by many devices. 1549 * 1550 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(), 1551 * it locks out usbcore in certain code paths. Notably, if you disconnect 1552 * the device-under-test, khubd will wait block forever waiting for the 1553 * ioctl to complete ... so that usb_disconnect() can abort the pending 1554 * urbs and then call usbtest_disconnect(). To abort a test, you're best 1555 * off just killing the userspace task and waiting for it to exit. 1556 */ 1557 1558 /* No BKL needed */ 1559 static int 1560 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) 1561 { 1562 struct usbtest_dev *dev = usb_get_intfdata (intf); 1563 struct usb_device *udev = testdev_to_usbdev (dev); 1564 struct usbtest_param *param = buf; 1565 int retval = -EOPNOTSUPP; 1566 struct urb *urb; 1567 struct scatterlist *sg; 1568 struct usb_sg_request req; 1569 struct timeval start; 1570 unsigned i; 1571 1572 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. 1573 1574 pattern = mod_pattern; 1575 1576 if (code != USBTEST_REQUEST) 1577 return -EOPNOTSUPP; 1578 1579 if (param->iterations <= 0) 1580 return -EINVAL; 1581 1582 if (mutex_lock_interruptible(&dev->lock)) 1583 return -ERESTARTSYS; 1584 1585 /* FIXME: What if a system sleep starts while a test is running? */ 1586 1587 /* some devices, like ez-usb default devices, need a non-default 1588 * altsetting to have any active endpoints. some tests change 1589 * altsettings; force a default so most tests don't need to check. 1590 */ 1591 if (dev->info->alt >= 0) { 1592 int res; 1593 1594 if (intf->altsetting->desc.bInterfaceNumber) { 1595 mutex_unlock(&dev->lock); 1596 return -ENODEV; 1597 } 1598 res = set_altsetting (dev, dev->info->alt); 1599 if (res) { 1600 dev_err (&intf->dev, 1601 "set altsetting to %d failed, %d\n", 1602 dev->info->alt, res); 1603 mutex_unlock(&dev->lock); 1604 return res; 1605 } 1606 } 1607 1608 /* 1609 * Just a bunch of test cases that every HCD is expected to handle. 1610 * 1611 * Some may need specific firmware, though it'd be good to have 1612 * one firmware image to handle all the test cases. 1613 * 1614 * FIXME add more tests! cancel requests, verify the data, control 1615 * queueing, concurrent read+write threads, and so on. 1616 */ 1617 do_gettimeofday (&start); 1618 switch (param->test_num) { 1619 1620 case 0: 1621 dev_info(&intf->dev, "TEST 0: NOP\n"); 1622 retval = 0; 1623 break; 1624 1625 /* Simple non-queued bulk I/O tests */ 1626 case 1: 1627 if (dev->out_pipe == 0) 1628 break; 1629 dev_info(&intf->dev, 1630 "TEST 1: write %d bytes %u times\n", 1631 param->length, param->iterations); 1632 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1633 if (!urb) { 1634 retval = -ENOMEM; 1635 break; 1636 } 1637 // FIRMWARE: bulk sink (maybe accepts short writes) 1638 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1"); 1639 simple_free_urb (urb); 1640 break; 1641 case 2: 1642 if (dev->in_pipe == 0) 1643 break; 1644 dev_info(&intf->dev, 1645 "TEST 2: read %d bytes %u times\n", 1646 param->length, param->iterations); 1647 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1648 if (!urb) { 1649 retval = -ENOMEM; 1650 break; 1651 } 1652 // FIRMWARE: bulk source (maybe generates short writes) 1653 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2"); 1654 simple_free_urb (urb); 1655 break; 1656 case 3: 1657 if (dev->out_pipe == 0 || param->vary == 0) 1658 break; 1659 dev_info(&intf->dev, 1660 "TEST 3: write/%d 0..%d bytes %u times\n", 1661 param->vary, param->length, param->iterations); 1662 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1663 if (!urb) { 1664 retval = -ENOMEM; 1665 break; 1666 } 1667 // FIRMWARE: bulk sink (maybe accepts short writes) 1668 retval = simple_io(dev, urb, param->iterations, param->vary, 1669 0, "test3"); 1670 simple_free_urb (urb); 1671 break; 1672 case 4: 1673 if (dev->in_pipe == 0 || param->vary == 0) 1674 break; 1675 dev_info(&intf->dev, 1676 "TEST 4: read/%d 0..%d bytes %u times\n", 1677 param->vary, param->length, param->iterations); 1678 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1679 if (!urb) { 1680 retval = -ENOMEM; 1681 break; 1682 } 1683 // FIRMWARE: bulk source (maybe generates short writes) 1684 retval = simple_io(dev, urb, param->iterations, param->vary, 1685 0, "test4"); 1686 simple_free_urb (urb); 1687 break; 1688 1689 /* Queued bulk I/O tests */ 1690 case 5: 1691 if (dev->out_pipe == 0 || param->sglen == 0) 1692 break; 1693 dev_info(&intf->dev, 1694 "TEST 5: write %d sglists %d entries of %d bytes\n", 1695 param->iterations, 1696 param->sglen, param->length); 1697 sg = alloc_sglist (param->sglen, param->length, 0); 1698 if (!sg) { 1699 retval = -ENOMEM; 1700 break; 1701 } 1702 // FIRMWARE: bulk sink (maybe accepts short writes) 1703 retval = perform_sglist(dev, param->iterations, dev->out_pipe, 1704 &req, sg, param->sglen); 1705 free_sglist (sg, param->sglen); 1706 break; 1707 1708 case 6: 1709 if (dev->in_pipe == 0 || param->sglen == 0) 1710 break; 1711 dev_info(&intf->dev, 1712 "TEST 6: read %d sglists %d entries of %d bytes\n", 1713 param->iterations, 1714 param->sglen, param->length); 1715 sg = alloc_sglist (param->sglen, param->length, 0); 1716 if (!sg) { 1717 retval = -ENOMEM; 1718 break; 1719 } 1720 // FIRMWARE: bulk source (maybe generates short writes) 1721 retval = perform_sglist(dev, param->iterations, dev->in_pipe, 1722 &req, sg, param->sglen); 1723 free_sglist (sg, param->sglen); 1724 break; 1725 case 7: 1726 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 1727 break; 1728 dev_info(&intf->dev, 1729 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 1730 param->vary, param->iterations, 1731 param->sglen, param->length); 1732 sg = alloc_sglist (param->sglen, param->length, param->vary); 1733 if (!sg) { 1734 retval = -ENOMEM; 1735 break; 1736 } 1737 // FIRMWARE: bulk sink (maybe accepts short writes) 1738 retval = perform_sglist(dev, param->iterations, dev->out_pipe, 1739 &req, sg, param->sglen); 1740 free_sglist (sg, param->sglen); 1741 break; 1742 case 8: 1743 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 1744 break; 1745 dev_info(&intf->dev, 1746 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 1747 param->vary, param->iterations, 1748 param->sglen, param->length); 1749 sg = alloc_sglist (param->sglen, param->length, param->vary); 1750 if (!sg) { 1751 retval = -ENOMEM; 1752 break; 1753 } 1754 // FIRMWARE: bulk source (maybe generates short writes) 1755 retval = perform_sglist(dev, param->iterations, dev->in_pipe, 1756 &req, sg, param->sglen); 1757 free_sglist (sg, param->sglen); 1758 break; 1759 1760 /* non-queued sanity tests for control (chapter 9 subset) */ 1761 case 9: 1762 retval = 0; 1763 dev_info(&intf->dev, 1764 "TEST 9: ch9 (subset) control tests, %d times\n", 1765 param->iterations); 1766 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1767 retval = ch9_postconfig (dev); 1768 if (retval) 1769 dev_err(&intf->dev, "ch9 subset failed, " 1770 "iterations left %d\n", i); 1771 break; 1772 1773 /* queued control messaging */ 1774 case 10: 1775 if (param->sglen == 0) 1776 break; 1777 retval = 0; 1778 dev_info(&intf->dev, 1779 "TEST 10: queue %d control calls, %d times\n", 1780 param->sglen, 1781 param->iterations); 1782 retval = test_ctrl_queue (dev, param); 1783 break; 1784 1785 /* simple non-queued unlinks (ring with one urb) */ 1786 case 11: 1787 if (dev->in_pipe == 0 || !param->length) 1788 break; 1789 retval = 0; 1790 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n", 1791 param->iterations, param->length); 1792 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1793 retval = unlink_simple (dev, dev->in_pipe, 1794 param->length); 1795 if (retval) 1796 dev_err(&intf->dev, "unlink reads failed %d, " 1797 "iterations left %d\n", retval, i); 1798 break; 1799 case 12: 1800 if (dev->out_pipe == 0 || !param->length) 1801 break; 1802 retval = 0; 1803 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n", 1804 param->iterations, param->length); 1805 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1806 retval = unlink_simple (dev, dev->out_pipe, 1807 param->length); 1808 if (retval) 1809 dev_err(&intf->dev, "unlink writes failed %d, " 1810 "iterations left %d\n", retval, i); 1811 break; 1812 1813 /* ep halt tests */ 1814 case 13: 1815 if (dev->out_pipe == 0 && dev->in_pipe == 0) 1816 break; 1817 retval = 0; 1818 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n", 1819 param->iterations); 1820 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1821 retval = halt_simple (dev); 1822 1823 if (retval) 1824 ERROR(dev, "halts failed, iterations left %d\n", i); 1825 break; 1826 1827 /* control write tests */ 1828 case 14: 1829 if (!dev->info->ctrl_out) 1830 break; 1831 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 1832 param->iterations, 1833 realworld ? 1 : 0, param->length, 1834 param->vary); 1835 retval = ctrl_out(dev, param->iterations, 1836 param->length, param->vary); 1837 break; 1838 1839 /* iso write tests */ 1840 case 15: 1841 if (dev->out_iso_pipe == 0 || param->sglen == 0) 1842 break; 1843 dev_info(&intf->dev, 1844 "TEST 15: write %d iso, %d entries of %d bytes\n", 1845 param->iterations, 1846 param->sglen, param->length); 1847 // FIRMWARE: iso sink 1848 retval = test_iso_queue (dev, param, 1849 dev->out_iso_pipe, dev->iso_out); 1850 break; 1851 1852 /* iso read tests */ 1853 case 16: 1854 if (dev->in_iso_pipe == 0 || param->sglen == 0) 1855 break; 1856 dev_info(&intf->dev, 1857 "TEST 16: read %d iso, %d entries of %d bytes\n", 1858 param->iterations, 1859 param->sglen, param->length); 1860 // FIRMWARE: iso source 1861 retval = test_iso_queue (dev, param, 1862 dev->in_iso_pipe, dev->iso_in); 1863 break; 1864 1865 // FIXME unlink from queue (ring with N urbs) 1866 1867 // FIXME scatterlist cancel (needs helper thread) 1868 1869 } 1870 do_gettimeofday (¶m->duration); 1871 param->duration.tv_sec -= start.tv_sec; 1872 param->duration.tv_usec -= start.tv_usec; 1873 if (param->duration.tv_usec < 0) { 1874 param->duration.tv_usec += 1000 * 1000; 1875 param->duration.tv_sec -= 1; 1876 } 1877 mutex_unlock(&dev->lock); 1878 return retval; 1879 } 1880 1881 /*-------------------------------------------------------------------------*/ 1882 1883 static unsigned force_interrupt = 0; 1884 module_param (force_interrupt, uint, 0); 1885 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); 1886 1887 #ifdef GENERIC 1888 static unsigned short vendor; 1889 module_param(vendor, ushort, 0); 1890 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); 1891 1892 static unsigned short product; 1893 module_param(product, ushort, 0); 1894 MODULE_PARM_DESC (product, "product code (from vendor)"); 1895 #endif 1896 1897 static int 1898 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) 1899 { 1900 struct usb_device *udev; 1901 struct usbtest_dev *dev; 1902 struct usbtest_info *info; 1903 char *rtest, *wtest; 1904 char *irtest, *iwtest; 1905 1906 udev = interface_to_usbdev (intf); 1907 1908 #ifdef GENERIC 1909 /* specify devices by module parameters? */ 1910 if (id->match_flags == 0) { 1911 /* vendor match required, product match optional */ 1912 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) 1913 return -ENODEV; 1914 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 1915 return -ENODEV; 1916 dev_info(&intf->dev, "matched module params, " 1917 "vend=0x%04x prod=0x%04x\n", 1918 le16_to_cpu(udev->descriptor.idVendor), 1919 le16_to_cpu(udev->descriptor.idProduct)); 1920 } 1921 #endif 1922 1923 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1924 if (!dev) 1925 return -ENOMEM; 1926 info = (struct usbtest_info *) id->driver_info; 1927 dev->info = info; 1928 mutex_init(&dev->lock); 1929 1930 dev->intf = intf; 1931 1932 /* cacheline-aligned scratch for i/o */ 1933 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) { 1934 kfree (dev); 1935 return -ENOMEM; 1936 } 1937 1938 /* NOTE this doesn't yet test the handful of difference that are 1939 * visible with high speed interrupts: bigger maxpacket (1K) and 1940 * "high bandwidth" modes (up to 3 packets/uframe). 1941 */ 1942 rtest = wtest = ""; 1943 irtest = iwtest = ""; 1944 if (force_interrupt || udev->speed == USB_SPEED_LOW) { 1945 if (info->ep_in) { 1946 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); 1947 rtest = " intr-in"; 1948 } 1949 if (info->ep_out) { 1950 dev->out_pipe = usb_sndintpipe (udev, info->ep_out); 1951 wtest = " intr-out"; 1952 } 1953 } else { 1954 if (info->autoconf) { 1955 int status; 1956 1957 status = get_endpoints (dev, intf); 1958 if (status < 0) { 1959 WARNING(dev, "couldn't get endpoints, %d\n", 1960 status); 1961 return status; 1962 } 1963 /* may find bulk or ISO pipes */ 1964 } else { 1965 if (info->ep_in) 1966 dev->in_pipe = usb_rcvbulkpipe (udev, 1967 info->ep_in); 1968 if (info->ep_out) 1969 dev->out_pipe = usb_sndbulkpipe (udev, 1970 info->ep_out); 1971 } 1972 if (dev->in_pipe) 1973 rtest = " bulk-in"; 1974 if (dev->out_pipe) 1975 wtest = " bulk-out"; 1976 if (dev->in_iso_pipe) 1977 irtest = " iso-in"; 1978 if (dev->out_iso_pipe) 1979 iwtest = " iso-out"; 1980 } 1981 1982 usb_set_intfdata (intf, dev); 1983 dev_info (&intf->dev, "%s\n", info->name); 1984 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", 1985 ({ char *tmp; 1986 switch (udev->speed) { 1987 case USB_SPEED_LOW: tmp = "low"; break; 1988 case USB_SPEED_FULL: tmp = "full"; break; 1989 case USB_SPEED_HIGH: tmp = "high"; break; 1990 default: tmp = "unknown"; break; 1991 }; tmp; }), 1992 info->ctrl_out ? " in/out" : "", 1993 rtest, wtest, 1994 irtest, iwtest, 1995 info->alt >= 0 ? " (+alt)" : ""); 1996 return 0; 1997 } 1998 1999 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) 2000 { 2001 return 0; 2002 } 2003 2004 static int usbtest_resume (struct usb_interface *intf) 2005 { 2006 return 0; 2007 } 2008 2009 2010 static void usbtest_disconnect (struct usb_interface *intf) 2011 { 2012 struct usbtest_dev *dev = usb_get_intfdata (intf); 2013 2014 usb_set_intfdata (intf, NULL); 2015 dev_dbg (&intf->dev, "disconnect\n"); 2016 kfree (dev); 2017 } 2018 2019 /* Basic testing only needs a device that can source or sink bulk traffic. 2020 * Any device can test control transfers (default with GENERIC binding). 2021 * 2022 * Several entries work with the default EP0 implementation that's built 2023 * into EZ-USB chips. There's a default vendor ID which can be overridden 2024 * by (very) small config EEPROMS, but otherwise all these devices act 2025 * identically until firmware is loaded: only EP0 works. It turns out 2026 * to be easy to make other endpoints work, without modifying that EP0 2027 * behavior. For now, we expect that kind of firmware. 2028 */ 2029 2030 /* an21xx or fx versions of ez-usb */ 2031 static struct usbtest_info ez1_info = { 2032 .name = "EZ-USB device", 2033 .ep_in = 2, 2034 .ep_out = 2, 2035 .alt = 1, 2036 }; 2037 2038 /* fx2 version of ez-usb */ 2039 static struct usbtest_info ez2_info = { 2040 .name = "FX2 device", 2041 .ep_in = 6, 2042 .ep_out = 2, 2043 .alt = 1, 2044 }; 2045 2046 /* ezusb family device with dedicated usb test firmware, 2047 */ 2048 static struct usbtest_info fw_info = { 2049 .name = "usb test device", 2050 .ep_in = 2, 2051 .ep_out = 2, 2052 .alt = 1, 2053 .autoconf = 1, // iso and ctrl_out need autoconf 2054 .ctrl_out = 1, 2055 .iso = 1, // iso_ep's are #8 in/out 2056 }; 2057 2058 /* peripheral running Linux and 'zero.c' test firmware, or 2059 * its user-mode cousin. different versions of this use 2060 * different hardware with the same vendor/product codes. 2061 * host side MUST rely on the endpoint descriptors. 2062 */ 2063 static struct usbtest_info gz_info = { 2064 .name = "Linux gadget zero", 2065 .autoconf = 1, 2066 .ctrl_out = 1, 2067 .alt = 0, 2068 }; 2069 2070 static struct usbtest_info um_info = { 2071 .name = "Linux user mode test driver", 2072 .autoconf = 1, 2073 .alt = -1, 2074 }; 2075 2076 static struct usbtest_info um2_info = { 2077 .name = "Linux user mode ISO test driver", 2078 .autoconf = 1, 2079 .iso = 1, 2080 .alt = -1, 2081 }; 2082 2083 #ifdef IBOT2 2084 /* this is a nice source of high speed bulk data; 2085 * uses an FX2, with firmware provided in the device 2086 */ 2087 static struct usbtest_info ibot2_info = { 2088 .name = "iBOT2 webcam", 2089 .ep_in = 2, 2090 .alt = -1, 2091 }; 2092 #endif 2093 2094 #ifdef GENERIC 2095 /* we can use any device to test control traffic */ 2096 static struct usbtest_info generic_info = { 2097 .name = "Generic USB device", 2098 .alt = -1, 2099 }; 2100 #endif 2101 2102 2103 static const struct usb_device_id id_table[] = { 2104 2105 /*-------------------------------------------------------------*/ 2106 2107 /* EZ-USB devices which download firmware to replace (or in our 2108 * case augment) the default device implementation. 2109 */ 2110 2111 /* generic EZ-USB FX controller */ 2112 { USB_DEVICE (0x0547, 0x2235), 2113 .driver_info = (unsigned long) &ez1_info, 2114 }, 2115 2116 /* CY3671 development board with EZ-USB FX */ 2117 { USB_DEVICE (0x0547, 0x0080), 2118 .driver_info = (unsigned long) &ez1_info, 2119 }, 2120 2121 /* generic EZ-USB FX2 controller (or development board) */ 2122 { USB_DEVICE (0x04b4, 0x8613), 2123 .driver_info = (unsigned long) &ez2_info, 2124 }, 2125 2126 /* re-enumerated usb test device firmware */ 2127 { USB_DEVICE (0xfff0, 0xfff0), 2128 .driver_info = (unsigned long) &fw_info, 2129 }, 2130 2131 /* "Gadget Zero" firmware runs under Linux */ 2132 { USB_DEVICE (0x0525, 0xa4a0), 2133 .driver_info = (unsigned long) &gz_info, 2134 }, 2135 2136 /* so does a user-mode variant */ 2137 { USB_DEVICE (0x0525, 0xa4a4), 2138 .driver_info = (unsigned long) &um_info, 2139 }, 2140 2141 /* ... and a user-mode variant that talks iso */ 2142 { USB_DEVICE (0x0525, 0xa4a3), 2143 .driver_info = (unsigned long) &um2_info, 2144 }, 2145 2146 #ifdef KEYSPAN_19Qi 2147 /* Keyspan 19qi uses an21xx (original EZ-USB) */ 2148 // this does not coexist with the real Keyspan 19qi driver! 2149 { USB_DEVICE (0x06cd, 0x010b), 2150 .driver_info = (unsigned long) &ez1_info, 2151 }, 2152 #endif 2153 2154 /*-------------------------------------------------------------*/ 2155 2156 #ifdef IBOT2 2157 /* iBOT2 makes a nice source of high speed bulk-in data */ 2158 // this does not coexist with a real iBOT2 driver! 2159 { USB_DEVICE (0x0b62, 0x0059), 2160 .driver_info = (unsigned long) &ibot2_info, 2161 }, 2162 #endif 2163 2164 /*-------------------------------------------------------------*/ 2165 2166 #ifdef GENERIC 2167 /* module params can specify devices to use for control tests */ 2168 { .driver_info = (unsigned long) &generic_info, }, 2169 #endif 2170 2171 /*-------------------------------------------------------------*/ 2172 2173 { } 2174 }; 2175 MODULE_DEVICE_TABLE (usb, id_table); 2176 2177 static struct usb_driver usbtest_driver = { 2178 .name = "usbtest", 2179 .id_table = id_table, 2180 .probe = usbtest_probe, 2181 .unlocked_ioctl = usbtest_ioctl, 2182 .disconnect = usbtest_disconnect, 2183 .suspend = usbtest_suspend, 2184 .resume = usbtest_resume, 2185 }; 2186 2187 /*-------------------------------------------------------------------------*/ 2188 2189 static int __init usbtest_init (void) 2190 { 2191 #ifdef GENERIC 2192 if (vendor) 2193 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product); 2194 #endif 2195 return usb_register (&usbtest_driver); 2196 } 2197 module_init (usbtest_init); 2198 2199 static void __exit usbtest_exit (void) 2200 { 2201 usb_deregister (&usbtest_driver); 2202 } 2203 module_exit (usbtest_exit); 2204 2205 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); 2206 MODULE_LICENSE ("GPL"); 2207 2208