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 dev->iso_out = &iso_out->desc; 166 dev->out_iso_pipe = usb_sndisocpipe (udev, 167 iso_out->desc.bEndpointAddress 168 & USB_ENDPOINT_NUMBER_MASK); 169 } 170 return 0; 171 } 172 173 /*-------------------------------------------------------------------------*/ 174 175 /* Support for testing basic non-queued I/O streams. 176 * 177 * These just package urbs as requests that can be easily canceled. 178 * Each urb's data buffer is dynamically allocated; callers can fill 179 * them with non-zero test data (or test for it) when appropriate. 180 */ 181 182 static void simple_callback (struct urb *urb) 183 { 184 complete(urb->context); 185 } 186 187 static struct urb *simple_alloc_urb ( 188 struct usb_device *udev, 189 int pipe, 190 unsigned long bytes 191 ) 192 { 193 struct urb *urb; 194 195 urb = usb_alloc_urb (0, GFP_KERNEL); 196 if (!urb) 197 return urb; 198 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); 199 urb->interval = (udev->speed == USB_SPEED_HIGH) 200 ? (INTERRUPT_RATE << 3) 201 : INTERRUPT_RATE; 202 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 203 if (usb_pipein (pipe)) 204 urb->transfer_flags |= URB_SHORT_NOT_OK; 205 urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL, 206 &urb->transfer_dma); 207 if (!urb->transfer_buffer) { 208 usb_free_urb (urb); 209 urb = NULL; 210 } else 211 memset (urb->transfer_buffer, 0, bytes); 212 return urb; 213 } 214 215 static unsigned pattern = 0; 216 static unsigned mod_pattern; 217 module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR); 218 MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)"); 219 220 static inline void simple_fill_buf (struct urb *urb) 221 { 222 unsigned i; 223 u8 *buf = urb->transfer_buffer; 224 unsigned len = urb->transfer_buffer_length; 225 226 switch (pattern) { 227 default: 228 // FALLTHROUGH 229 case 0: 230 memset (buf, 0, len); 231 break; 232 case 1: /* mod63 */ 233 for (i = 0; i < len; i++) 234 *buf++ = (u8) (i % 63); 235 break; 236 } 237 } 238 239 static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb) 240 { 241 unsigned i; 242 u8 expected; 243 u8 *buf = urb->transfer_buffer; 244 unsigned len = urb->actual_length; 245 246 for (i = 0; i < len; i++, buf++) { 247 switch (pattern) { 248 /* all-zeroes has no synchronization issues */ 249 case 0: 250 expected = 0; 251 break; 252 /* mod63 stays in sync with short-terminated transfers, 253 * or otherwise when host and gadget agree on how large 254 * each usb transfer request should be. resync is done 255 * with set_interface or set_config. 256 */ 257 case 1: /* mod63 */ 258 expected = i % 63; 259 break; 260 /* always fail unsupported patterns */ 261 default: 262 expected = !*buf; 263 break; 264 } 265 if (*buf == expected) 266 continue; 267 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected); 268 return -EINVAL; 269 } 270 return 0; 271 } 272 273 static void simple_free_urb (struct urb *urb) 274 { 275 usb_free_coherent(urb->dev, urb->transfer_buffer_length, 276 urb->transfer_buffer, urb->transfer_dma); 277 usb_free_urb (urb); 278 } 279 280 static int simple_io ( 281 struct usbtest_dev *tdev, 282 struct urb *urb, 283 int iterations, 284 int vary, 285 int expected, 286 const char *label 287 ) 288 { 289 struct usb_device *udev = urb->dev; 290 int max = urb->transfer_buffer_length; 291 struct completion completion; 292 int retval = 0; 293 294 urb->context = &completion; 295 while (retval == 0 && iterations-- > 0) { 296 init_completion (&completion); 297 if (usb_pipeout (urb->pipe)) 298 simple_fill_buf (urb); 299 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) 300 break; 301 302 /* NOTE: no timeouts; can't be broken out of by interrupt */ 303 wait_for_completion (&completion); 304 retval = urb->status; 305 urb->dev = udev; 306 if (retval == 0 && usb_pipein (urb->pipe)) 307 retval = simple_check_buf(tdev, urb); 308 309 if (vary) { 310 int len = urb->transfer_buffer_length; 311 312 len += vary; 313 len %= max; 314 if (len == 0) 315 len = (vary < max) ? vary : max; 316 urb->transfer_buffer_length = len; 317 } 318 319 /* FIXME if endpoint halted, clear halt (and log) */ 320 } 321 urb->transfer_buffer_length = max; 322 323 if (expected != retval) 324 dev_err(&udev->dev, 325 "%s failed, iterations left %d, status %d (not %d)\n", 326 label, iterations, retval, expected); 327 return retval; 328 } 329 330 331 /*-------------------------------------------------------------------------*/ 332 333 /* We use scatterlist primitives to test queued I/O. 334 * Yes, this also tests the scatterlist primitives. 335 */ 336 337 static void free_sglist (struct scatterlist *sg, int nents) 338 { 339 unsigned i; 340 341 if (!sg) 342 return; 343 for (i = 0; i < nents; i++) { 344 if (!sg_page(&sg[i])) 345 continue; 346 kfree (sg_virt(&sg[i])); 347 } 348 kfree (sg); 349 } 350 351 static struct scatterlist * 352 alloc_sglist (int nents, int max, int vary) 353 { 354 struct scatterlist *sg; 355 unsigned i; 356 unsigned size = max; 357 358 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL); 359 if (!sg) 360 return NULL; 361 sg_init_table(sg, nents); 362 363 for (i = 0; i < nents; i++) { 364 char *buf; 365 unsigned j; 366 367 buf = kzalloc (size, GFP_KERNEL); 368 if (!buf) { 369 free_sglist (sg, i); 370 return NULL; 371 } 372 373 /* kmalloc pages are always physically contiguous! */ 374 sg_set_buf(&sg[i], buf, size); 375 376 switch (pattern) { 377 case 0: 378 /* already zeroed */ 379 break; 380 case 1: 381 for (j = 0; j < size; j++) 382 *buf++ = (u8) (j % 63); 383 break; 384 } 385 386 if (vary) { 387 size += vary; 388 size %= max; 389 if (size == 0) 390 size = (vary < max) ? vary : max; 391 } 392 } 393 394 return sg; 395 } 396 397 static int perform_sglist ( 398 struct usbtest_dev *tdev, 399 unsigned iterations, 400 int pipe, 401 struct usb_sg_request *req, 402 struct scatterlist *sg, 403 int nents 404 ) 405 { 406 struct usb_device *udev = testdev_to_usbdev(tdev); 407 int retval = 0; 408 409 while (retval == 0 && iterations-- > 0) { 410 retval = usb_sg_init (req, udev, pipe, 411 (udev->speed == USB_SPEED_HIGH) 412 ? (INTERRUPT_RATE << 3) 413 : INTERRUPT_RATE, 414 sg, nents, 0, GFP_KERNEL); 415 416 if (retval) 417 break; 418 usb_sg_wait (req); 419 retval = req->status; 420 421 /* FIXME check resulting data pattern */ 422 423 /* FIXME if endpoint halted, clear halt (and log) */ 424 } 425 426 // FIXME for unlink or fault handling tests, don't report 427 // failure if retval is as we expected ... 428 429 if (retval) 430 ERROR(tdev, "perform_sglist failed, " 431 "iterations left %d, status %d\n", 432 iterations, retval); 433 return retval; 434 } 435 436 437 /*-------------------------------------------------------------------------*/ 438 439 /* unqueued control message testing 440 * 441 * there's a nice set of device functional requirements in chapter 9 of the 442 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use 443 * special test firmware. 444 * 445 * we know the device is configured (or suspended) by the time it's visible 446 * through usbfs. we can't change that, so we won't test enumeration (which 447 * worked 'well enough' to get here, this time), power management (ditto), 448 * or remote wakeup (which needs human interaction). 449 */ 450 451 static unsigned realworld = 1; 452 module_param (realworld, uint, 0); 453 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); 454 455 static int get_altsetting (struct usbtest_dev *dev) 456 { 457 struct usb_interface *iface = dev->intf; 458 struct usb_device *udev = interface_to_usbdev (iface); 459 int retval; 460 461 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 462 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, 463 0, iface->altsetting [0].desc.bInterfaceNumber, 464 dev->buf, 1, USB_CTRL_GET_TIMEOUT); 465 switch (retval) { 466 case 1: 467 return dev->buf [0]; 468 case 0: 469 retval = -ERANGE; 470 // FALLTHROUGH 471 default: 472 return retval; 473 } 474 } 475 476 static int set_altsetting (struct usbtest_dev *dev, int alternate) 477 { 478 struct usb_interface *iface = dev->intf; 479 struct usb_device *udev; 480 481 if (alternate < 0 || alternate >= 256) 482 return -EINVAL; 483 484 udev = interface_to_usbdev (iface); 485 return usb_set_interface (udev, 486 iface->altsetting [0].desc.bInterfaceNumber, 487 alternate); 488 } 489 490 static int is_good_config(struct usbtest_dev *tdev, int len) 491 { 492 struct usb_config_descriptor *config; 493 494 if (len < sizeof *config) 495 return 0; 496 config = (struct usb_config_descriptor *) tdev->buf; 497 498 switch (config->bDescriptorType) { 499 case USB_DT_CONFIG: 500 case USB_DT_OTHER_SPEED_CONFIG: 501 if (config->bLength != 9) { 502 ERROR(tdev, "bogus config descriptor length\n"); 503 return 0; 504 } 505 /* this bit 'must be 1' but often isn't */ 506 if (!realworld && !(config->bmAttributes & 0x80)) { 507 ERROR(tdev, "high bit of config attributes not set\n"); 508 return 0; 509 } 510 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 511 ERROR(tdev, "reserved config bits set\n"); 512 return 0; 513 } 514 break; 515 default: 516 return 0; 517 } 518 519 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ 520 return 1; 521 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 522 return 1; 523 ERROR(tdev, "bogus config descriptor read size\n"); 524 return 0; 525 } 526 527 /* sanity test for standard requests working with usb_control_mesg() and some 528 * of the utility functions which use it. 529 * 530 * this doesn't test how endpoint halts behave or data toggles get set, since 531 * we won't do I/O to bulk/interrupt endpoints here (which is how to change 532 * halt or toggle). toggle testing is impractical without support from hcds. 533 * 534 * this avoids failing devices linux would normally work with, by not testing 535 * config/altsetting operations for devices that only support their defaults. 536 * such devices rarely support those needless operations. 537 * 538 * NOTE that since this is a sanity test, it's not examining boundary cases 539 * to see if usbcore, hcd, and device all behave right. such testing would 540 * involve varied read sizes and other operation sequences. 541 */ 542 static int ch9_postconfig (struct usbtest_dev *dev) 543 { 544 struct usb_interface *iface = dev->intf; 545 struct usb_device *udev = interface_to_usbdev (iface); 546 int i, alt, retval; 547 548 /* [9.2.3] if there's more than one altsetting, we need to be able to 549 * set and get each one. mostly trusts the descriptors from usbcore. 550 */ 551 for (i = 0; i < iface->num_altsetting; i++) { 552 553 /* 9.2.3 constrains the range here */ 554 alt = iface->altsetting [i].desc.bAlternateSetting; 555 if (alt < 0 || alt >= iface->num_altsetting) { 556 dev_err(&iface->dev, 557 "invalid alt [%d].bAltSetting = %d\n", 558 i, alt); 559 } 560 561 /* [real world] get/set unimplemented if there's only one */ 562 if (realworld && iface->num_altsetting == 1) 563 continue; 564 565 /* [9.4.10] set_interface */ 566 retval = set_altsetting (dev, alt); 567 if (retval) { 568 dev_err(&iface->dev, "can't set_interface = %d, %d\n", 569 alt, retval); 570 return retval; 571 } 572 573 /* [9.4.4] get_interface always works */ 574 retval = get_altsetting (dev); 575 if (retval != alt) { 576 dev_err(&iface->dev, "get alt should be %d, was %d\n", 577 alt, retval); 578 return (retval < 0) ? retval : -EDOM; 579 } 580 581 } 582 583 /* [real world] get_config unimplemented if there's only one */ 584 if (!realworld || udev->descriptor.bNumConfigurations != 1) { 585 int expected = udev->actconfig->desc.bConfigurationValue; 586 587 /* [9.4.2] get_configuration always works 588 * ... although some cheap devices (like one TI Hub I've got) 589 * won't return config descriptors except before set_config. 590 */ 591 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 592 USB_REQ_GET_CONFIGURATION, 593 USB_DIR_IN | USB_RECIP_DEVICE, 594 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 595 if (retval != 1 || dev->buf [0] != expected) { 596 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n", 597 retval, dev->buf[0], expected); 598 return (retval < 0) ? retval : -EDOM; 599 } 600 } 601 602 /* there's always [9.4.3] a device descriptor [9.6.1] */ 603 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, 604 dev->buf, sizeof udev->descriptor); 605 if (retval != sizeof udev->descriptor) { 606 dev_err(&iface->dev, "dev descriptor --> %d\n", retval); 607 return (retval < 0) ? retval : -EDOM; 608 } 609 610 /* there's always [9.4.3] at least one config descriptor [9.6.3] */ 611 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 612 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, 613 dev->buf, TBUF_SIZE); 614 if (!is_good_config(dev, retval)) { 615 dev_err(&iface->dev, 616 "config [%d] descriptor --> %d\n", 617 i, retval); 618 return (retval < 0) ? retval : -EDOM; 619 } 620 621 // FIXME cross-checking udev->config[i] to make sure usbcore 622 // parsed it right (etc) would be good testing paranoia 623 } 624 625 /* and sometimes [9.2.6.6] speed dependent descriptors */ 626 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { 627 struct usb_qualifier_descriptor *d = NULL; 628 629 /* device qualifier [9.6.2] */ 630 retval = usb_get_descriptor (udev, 631 USB_DT_DEVICE_QUALIFIER, 0, dev->buf, 632 sizeof (struct usb_qualifier_descriptor)); 633 if (retval == -EPIPE) { 634 if (udev->speed == USB_SPEED_HIGH) { 635 dev_err(&iface->dev, 636 "hs dev qualifier --> %d\n", 637 retval); 638 return (retval < 0) ? retval : -EDOM; 639 } 640 /* usb2.0 but not high-speed capable; fine */ 641 } else if (retval != sizeof (struct usb_qualifier_descriptor)) { 642 dev_err(&iface->dev, "dev qualifier --> %d\n", retval); 643 return (retval < 0) ? retval : -EDOM; 644 } else 645 d = (struct usb_qualifier_descriptor *) dev->buf; 646 647 /* might not have [9.6.2] any other-speed configs [9.6.4] */ 648 if (d) { 649 unsigned max = d->bNumConfigurations; 650 for (i = 0; i < max; i++) { 651 retval = usb_get_descriptor (udev, 652 USB_DT_OTHER_SPEED_CONFIG, i, 653 dev->buf, TBUF_SIZE); 654 if (!is_good_config(dev, retval)) { 655 dev_err(&iface->dev, 656 "other speed config --> %d\n", 657 retval); 658 return (retval < 0) ? retval : -EDOM; 659 } 660 } 661 } 662 } 663 // FIXME fetch strings from at least the device descriptor 664 665 /* [9.4.5] get_status always works */ 666 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); 667 if (retval != 2) { 668 dev_err(&iface->dev, "get dev status --> %d\n", retval); 669 return (retval < 0) ? retval : -EDOM; 670 } 671 672 // FIXME configuration.bmAttributes says if we could try to set/clear 673 // the device's remote wakeup feature ... if we can, test that here 674 675 retval = usb_get_status (udev, USB_RECIP_INTERFACE, 676 iface->altsetting [0].desc.bInterfaceNumber, dev->buf); 677 if (retval != 2) { 678 dev_err(&iface->dev, "get interface status --> %d\n", retval); 679 return (retval < 0) ? retval : -EDOM; 680 } 681 // FIXME get status for each endpoint in the interface 682 683 return 0; 684 } 685 686 /*-------------------------------------------------------------------------*/ 687 688 /* use ch9 requests to test whether: 689 * (a) queues work for control, keeping N subtests queued and 690 * active (auto-resubmit) for M loops through the queue. 691 * (b) protocol stalls (control-only) will autorecover. 692 * it's not like bulk/intr; no halt clearing. 693 * (c) short control reads are reported and handled. 694 * (d) queues are always processed in-order 695 */ 696 697 struct ctrl_ctx { 698 spinlock_t lock; 699 struct usbtest_dev *dev; 700 struct completion complete; 701 unsigned count; 702 unsigned pending; 703 int status; 704 struct urb **urb; 705 struct usbtest_param *param; 706 int last; 707 }; 708 709 #define NUM_SUBCASES 15 /* how many test subcases here? */ 710 711 struct subcase { 712 struct usb_ctrlrequest setup; 713 int number; 714 int expected; 715 }; 716 717 static void ctrl_complete (struct urb *urb) 718 { 719 struct ctrl_ctx *ctx = urb->context; 720 struct usb_ctrlrequest *reqp; 721 struct subcase *subcase; 722 int status = urb->status; 723 724 reqp = (struct usb_ctrlrequest *)urb->setup_packet; 725 subcase = container_of (reqp, struct subcase, setup); 726 727 spin_lock (&ctx->lock); 728 ctx->count--; 729 ctx->pending--; 730 731 /* queue must transfer and complete in fifo order, unless 732 * usb_unlink_urb() is used to unlink something not at the 733 * physical queue head (not tested). 734 */ 735 if (subcase->number > 0) { 736 if ((subcase->number - ctx->last) != 1) { 737 ERROR(ctx->dev, 738 "subcase %d completed out of order, last %d\n", 739 subcase->number, ctx->last); 740 status = -EDOM; 741 ctx->last = subcase->number; 742 goto error; 743 } 744 } 745 ctx->last = subcase->number; 746 747 /* succeed or fault in only one way? */ 748 if (status == subcase->expected) 749 status = 0; 750 751 /* async unlink for cleanup? */ 752 else if (status != -ECONNRESET) { 753 754 /* some faults are allowed, not required */ 755 if (subcase->expected > 0 && ( 756 ((status == -subcase->expected /* happened */ 757 || status == 0)))) /* didn't */ 758 status = 0; 759 /* sometimes more than one fault is allowed */ 760 else if (subcase->number == 12 && status == -EPIPE) 761 status = 0; 762 else 763 ERROR(ctx->dev, "subtest %d error, status %d\n", 764 subcase->number, status); 765 } 766 767 /* unexpected status codes mean errors; ideally, in hardware */ 768 if (status) { 769 error: 770 if (ctx->status == 0) { 771 int i; 772 773 ctx->status = status; 774 ERROR(ctx->dev, "control queue %02x.%02x, err %d, " 775 "%d left, subcase %d, len %d/%d\n", 776 reqp->bRequestType, reqp->bRequest, 777 status, ctx->count, subcase->number, 778 urb->actual_length, 779 urb->transfer_buffer_length); 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) 789 % ctx->param->sglen]; 790 791 if (u == urb || !u->dev) 792 continue; 793 spin_unlock(&ctx->lock); 794 status = usb_unlink_urb (u); 795 spin_lock(&ctx->lock); 796 switch (status) { 797 case -EINPROGRESS: 798 case -EBUSY: 799 case -EIDRM: 800 continue; 801 default: 802 ERROR(ctx->dev, "urb unlink --> %d\n", 803 status); 804 } 805 } 806 status = ctx->status; 807 } 808 } 809 810 /* resubmit if we need to, else mark this as done */ 811 if ((status == 0) && (ctx->pending < ctx->count)) { 812 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) { 813 ERROR(ctx->dev, 814 "can't resubmit ctrl %02x.%02x, err %d\n", 815 reqp->bRequestType, reqp->bRequest, status); 816 urb->dev = NULL; 817 } else 818 ctx->pending++; 819 } else 820 urb->dev = NULL; 821 822 /* signal completion when nothing's queued */ 823 if (ctx->pending == 0) 824 complete (&ctx->complete); 825 spin_unlock (&ctx->lock); 826 } 827 828 static int 829 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) 830 { 831 struct usb_device *udev = testdev_to_usbdev (dev); 832 struct urb **urb; 833 struct ctrl_ctx context; 834 int i; 835 836 spin_lock_init (&context.lock); 837 context.dev = dev; 838 init_completion (&context.complete); 839 context.count = param->sglen * param->iterations; 840 context.pending = 0; 841 context.status = -ENOMEM; 842 context.param = param; 843 context.last = -1; 844 845 /* allocate and init the urbs we'll queue. 846 * as with bulk/intr sglists, sglen is the queue depth; it also 847 * controls which subtests run (more tests than sglen) or rerun. 848 */ 849 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); 850 if (!urb) 851 return -ENOMEM; 852 for (i = 0; i < param->sglen; i++) { 853 int pipe = usb_rcvctrlpipe (udev, 0); 854 unsigned len; 855 struct urb *u; 856 struct usb_ctrlrequest req; 857 struct subcase *reqp; 858 859 /* sign of this variable means: 860 * -: tested code must return this (negative) error code 861 * +: tested code may return this (negative too) error code 862 */ 863 int expected = 0; 864 865 /* requests here are mostly expected to succeed on any 866 * device, but some are chosen to trigger protocol stalls 867 * or short reads. 868 */ 869 memset (&req, 0, sizeof req); 870 req.bRequest = USB_REQ_GET_DESCRIPTOR; 871 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 872 873 switch (i % NUM_SUBCASES) { 874 case 0: // get device descriptor 875 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); 876 len = sizeof (struct usb_device_descriptor); 877 break; 878 case 1: // get first config descriptor (only) 879 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 880 len = sizeof (struct usb_config_descriptor); 881 break; 882 case 2: // get altsetting (OFTEN STALLS) 883 req.bRequest = USB_REQ_GET_INTERFACE; 884 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 885 // index = 0 means first interface 886 len = 1; 887 expected = EPIPE; 888 break; 889 case 3: // get interface status 890 req.bRequest = USB_REQ_GET_STATUS; 891 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 892 // interface 0 893 len = 2; 894 break; 895 case 4: // get device status 896 req.bRequest = USB_REQ_GET_STATUS; 897 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 898 len = 2; 899 break; 900 case 5: // get device qualifier (MAY STALL) 901 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); 902 len = sizeof (struct usb_qualifier_descriptor); 903 if (udev->speed != USB_SPEED_HIGH) 904 expected = EPIPE; 905 break; 906 case 6: // get first config descriptor, plus interface 907 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 908 len = sizeof (struct usb_config_descriptor); 909 len += sizeof (struct usb_interface_descriptor); 910 break; 911 case 7: // get interface descriptor (ALWAYS STALLS) 912 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 913 // interface == 0 914 len = sizeof (struct usb_interface_descriptor); 915 expected = -EPIPE; 916 break; 917 // NOTE: two consecutive stalls in the queue here. 918 // that tests fault recovery a bit more aggressively. 919 case 8: // clear endpoint halt (MAY STALL) 920 req.bRequest = USB_REQ_CLEAR_FEATURE; 921 req.bRequestType = USB_RECIP_ENDPOINT; 922 // wValue 0 == ep halt 923 // wIndex 0 == ep0 (shouldn't halt!) 924 len = 0; 925 pipe = usb_sndctrlpipe (udev, 0); 926 expected = EPIPE; 927 break; 928 case 9: // get endpoint status 929 req.bRequest = USB_REQ_GET_STATUS; 930 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; 931 // endpoint 0 932 len = 2; 933 break; 934 case 10: // trigger short read (EREMOTEIO) 935 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 936 len = 1024; 937 expected = -EREMOTEIO; 938 break; 939 // NOTE: two consecutive _different_ faults in the queue. 940 case 11: // get endpoint descriptor (ALWAYS STALLS) 941 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); 942 // endpoint == 0 943 len = sizeof (struct usb_interface_descriptor); 944 expected = EPIPE; 945 break; 946 // NOTE: sometimes even a third fault in the queue! 947 case 12: // get string 0 descriptor (MAY STALL) 948 req.wValue = cpu_to_le16 (USB_DT_STRING << 8); 949 // string == 0, for language IDs 950 len = sizeof (struct usb_interface_descriptor); 951 // may succeed when > 4 languages 952 expected = EREMOTEIO; // or EPIPE, if no strings 953 break; 954 case 13: // short read, resembling case 10 955 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 956 // last data packet "should" be DATA1, not DATA0 957 len = 1024 - udev->descriptor.bMaxPacketSize0; 958 expected = -EREMOTEIO; 959 break; 960 case 14: // short read; try to fill the last packet 961 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); 962 /* device descriptor size == 18 bytes */ 963 len = udev->descriptor.bMaxPacketSize0; 964 switch (len) { 965 case 8: len = 24; break; 966 case 16: len = 32; break; 967 } 968 expected = -EREMOTEIO; 969 break; 970 default: 971 ERROR(dev, "bogus number of ctrl queue testcases!\n"); 972 context.status = -EINVAL; 973 goto cleanup; 974 } 975 req.wLength = cpu_to_le16 (len); 976 urb [i] = u = simple_alloc_urb (udev, pipe, len); 977 if (!u) 978 goto cleanup; 979 980 reqp = kmalloc(sizeof *reqp, GFP_KERNEL); 981 if (!reqp) 982 goto cleanup; 983 reqp->setup = req; 984 reqp->number = i % NUM_SUBCASES; 985 reqp->expected = expected; 986 u->setup_packet = (char *) &reqp->setup; 987 988 u->context = &context; 989 u->complete = ctrl_complete; 990 } 991 992 /* queue the urbs */ 993 context.urb = urb; 994 spin_lock_irq (&context.lock); 995 for (i = 0; i < param->sglen; i++) { 996 context.status = usb_submit_urb (urb [i], GFP_ATOMIC); 997 if (context.status != 0) { 998 ERROR(dev, "can't submit urb[%d], status %d\n", 999 i, context.status); 1000 context.count = context.pending; 1001 break; 1002 } 1003 context.pending++; 1004 } 1005 spin_unlock_irq (&context.lock); 1006 1007 /* FIXME set timer and time out; provide a disconnect hook */ 1008 1009 /* wait for the last one to complete */ 1010 if (context.pending > 0) 1011 wait_for_completion (&context.complete); 1012 1013 cleanup: 1014 for (i = 0; i < param->sglen; i++) { 1015 if (!urb [i]) 1016 continue; 1017 urb [i]->dev = udev; 1018 kfree(urb[i]->setup_packet); 1019 simple_free_urb (urb [i]); 1020 } 1021 kfree (urb); 1022 return context.status; 1023 } 1024 #undef NUM_SUBCASES 1025 1026 1027 /*-------------------------------------------------------------------------*/ 1028 1029 static void unlink1_callback (struct urb *urb) 1030 { 1031 int status = urb->status; 1032 1033 // we "know" -EPIPE (stall) never happens 1034 if (!status) 1035 status = usb_submit_urb (urb, GFP_ATOMIC); 1036 if (status) { 1037 urb->status = status; 1038 complete(urb->context); 1039 } 1040 } 1041 1042 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) 1043 { 1044 struct urb *urb; 1045 struct completion completion; 1046 int retval = 0; 1047 1048 init_completion (&completion); 1049 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); 1050 if (!urb) 1051 return -ENOMEM; 1052 urb->context = &completion; 1053 urb->complete = unlink1_callback; 1054 1055 /* keep the endpoint busy. there are lots of hc/hcd-internal 1056 * states, and testing should get to all of them over time. 1057 * 1058 * FIXME want additional tests for when endpoint is STALLing 1059 * due to errors, or is just NAKing requests. 1060 */ 1061 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) { 1062 dev_err(&dev->intf->dev, "submit fail %d\n", retval); 1063 return retval; 1064 } 1065 1066 /* unlinking that should always work. variable delay tests more 1067 * hcd states and code paths, even with little other system load. 1068 */ 1069 msleep (jiffies % (2 * INTERRUPT_RATE)); 1070 if (async) { 1071 while (!completion_done(&completion)) { 1072 retval = usb_unlink_urb(urb); 1073 1074 switch (retval) { 1075 case -EBUSY: 1076 case -EIDRM: 1077 /* we can't unlink urbs while they're completing 1078 * or if they've completed, and we haven't 1079 * resubmitted. "normal" drivers would prevent 1080 * resubmission, but since we're testing unlink 1081 * paths, we can't. 1082 */ 1083 ERROR(dev, "unlink retry\n"); 1084 continue; 1085 case 0: 1086 case -EINPROGRESS: 1087 break; 1088 1089 default: 1090 dev_err(&dev->intf->dev, 1091 "unlink fail %d\n", retval); 1092 return retval; 1093 } 1094 1095 break; 1096 } 1097 } else 1098 usb_kill_urb (urb); 1099 1100 wait_for_completion (&completion); 1101 retval = urb->status; 1102 simple_free_urb (urb); 1103 1104 if (async) 1105 return (retval == -ECONNRESET) ? 0 : retval - 1000; 1106 else 1107 return (retval == -ENOENT || retval == -EPERM) ? 1108 0 : retval - 2000; 1109 } 1110 1111 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len) 1112 { 1113 int retval = 0; 1114 1115 /* test sync and async paths */ 1116 retval = unlink1 (dev, pipe, len, 1); 1117 if (!retval) 1118 retval = unlink1 (dev, pipe, len, 0); 1119 return retval; 1120 } 1121 1122 /*-------------------------------------------------------------------------*/ 1123 1124 static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) 1125 { 1126 int retval; 1127 u16 status; 1128 1129 /* shouldn't look or act halted */ 1130 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1131 if (retval < 0) { 1132 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n", 1133 ep, retval); 1134 return retval; 1135 } 1136 if (status != 0) { 1137 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status); 1138 return -EINVAL; 1139 } 1140 retval = simple_io(tdev, urb, 1, 0, 0, __func__); 1141 if (retval != 0) 1142 return -EINVAL; 1143 return 0; 1144 } 1145 1146 static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) 1147 { 1148 int retval; 1149 u16 status; 1150 1151 /* should look and act halted */ 1152 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1153 if (retval < 0) { 1154 ERROR(tdev, "ep %02x couldn't get halt status, %d\n", 1155 ep, retval); 1156 return retval; 1157 } 1158 le16_to_cpus(&status); 1159 if (status != 1) { 1160 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); 1161 return -EINVAL; 1162 } 1163 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__); 1164 if (retval != -EPIPE) 1165 return -EINVAL; 1166 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted"); 1167 if (retval != -EPIPE) 1168 return -EINVAL; 1169 return 0; 1170 } 1171 1172 static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) 1173 { 1174 int retval; 1175 1176 /* shouldn't look or act halted now */ 1177 retval = verify_not_halted(tdev, ep, urb); 1178 if (retval < 0) 1179 return retval; 1180 1181 /* set halt (protocol test only), verify it worked */ 1182 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), 1183 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, 1184 USB_ENDPOINT_HALT, ep, 1185 NULL, 0, USB_CTRL_SET_TIMEOUT); 1186 if (retval < 0) { 1187 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval); 1188 return retval; 1189 } 1190 retval = verify_halted(tdev, ep, urb); 1191 if (retval < 0) 1192 return retval; 1193 1194 /* clear halt (tests API + protocol), verify it worked */ 1195 retval = usb_clear_halt (urb->dev, urb->pipe); 1196 if (retval < 0) { 1197 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval); 1198 return retval; 1199 } 1200 retval = verify_not_halted(tdev, ep, urb); 1201 if (retval < 0) 1202 return retval; 1203 1204 /* NOTE: could also verify SET_INTERFACE clear halts ... */ 1205 1206 return 0; 1207 } 1208 1209 static int halt_simple (struct usbtest_dev *dev) 1210 { 1211 int ep; 1212 int retval = 0; 1213 struct urb *urb; 1214 1215 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); 1216 if (urb == NULL) 1217 return -ENOMEM; 1218 1219 if (dev->in_pipe) { 1220 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; 1221 urb->pipe = dev->in_pipe; 1222 retval = test_halt(dev, ep, urb); 1223 if (retval < 0) 1224 goto done; 1225 } 1226 1227 if (dev->out_pipe) { 1228 ep = usb_pipeendpoint (dev->out_pipe); 1229 urb->pipe = dev->out_pipe; 1230 retval = test_halt(dev, ep, urb); 1231 } 1232 done: 1233 simple_free_urb (urb); 1234 return retval; 1235 } 1236 1237 /*-------------------------------------------------------------------------*/ 1238 1239 /* Control OUT tests use the vendor control requests from Intel's 1240 * USB 2.0 compliance test device: write a buffer, read it back. 1241 * 1242 * Intel's spec only _requires_ that it work for one packet, which 1243 * is pretty weak. Some HCDs place limits here; most devices will 1244 * need to be able to handle more than one OUT data packet. We'll 1245 * try whatever we're told to try. 1246 */ 1247 static int ctrl_out (struct usbtest_dev *dev, 1248 unsigned count, unsigned length, unsigned vary) 1249 { 1250 unsigned i, j, len; 1251 int retval; 1252 u8 *buf; 1253 char *what = "?"; 1254 struct usb_device *udev; 1255 1256 if (length < 1 || length > 0xffff || vary >= length) 1257 return -EINVAL; 1258 1259 buf = kmalloc(length, GFP_KERNEL); 1260 if (!buf) 1261 return -ENOMEM; 1262 1263 udev = testdev_to_usbdev (dev); 1264 len = length; 1265 retval = 0; 1266 1267 /* NOTE: hardware might well act differently if we pushed it 1268 * with lots back-to-back queued requests. 1269 */ 1270 for (i = 0; i < count; i++) { 1271 /* write patterned data */ 1272 for (j = 0; j < len; j++) 1273 buf [j] = i + j; 1274 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), 1275 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, 1276 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); 1277 if (retval != len) { 1278 what = "write"; 1279 if (retval >= 0) { 1280 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n", 1281 retval, len); 1282 retval = -EBADMSG; 1283 } 1284 break; 1285 } 1286 1287 /* read it back -- assuming nothing intervened!! */ 1288 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), 1289 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, 1290 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); 1291 if (retval != len) { 1292 what = "read"; 1293 if (retval >= 0) { 1294 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n", 1295 retval, len); 1296 retval = -EBADMSG; 1297 } 1298 break; 1299 } 1300 1301 /* fail if we can't verify */ 1302 for (j = 0; j < len; j++) { 1303 if (buf [j] != (u8) (i + j)) { 1304 ERROR(dev, "ctrl_out, byte %d is %d not %d\n", 1305 j, buf [j], (u8) i + j); 1306 retval = -EBADMSG; 1307 break; 1308 } 1309 } 1310 if (retval < 0) { 1311 what = "verify"; 1312 break; 1313 } 1314 1315 len += vary; 1316 1317 /* [real world] the "zero bytes IN" case isn't really used. 1318 * hardware can easily trip up in this weird case, since its 1319 * status stage is IN, not OUT like other ep0in transfers. 1320 */ 1321 if (len > length) 1322 len = realworld ? 1 : 0; 1323 } 1324 1325 if (retval < 0) 1326 ERROR (dev, "ctrl_out %s failed, code %d, count %d\n", 1327 what, retval, i); 1328 1329 kfree (buf); 1330 return retval; 1331 } 1332 1333 /*-------------------------------------------------------------------------*/ 1334 1335 /* ISO tests ... mimics common usage 1336 * - buffer length is split into N packets (mostly maxpacket sized) 1337 * - multi-buffers according to sglen 1338 */ 1339 1340 struct iso_context { 1341 unsigned count; 1342 unsigned pending; 1343 spinlock_t lock; 1344 struct completion done; 1345 int submit_error; 1346 unsigned long errors; 1347 unsigned long packet_count; 1348 struct usbtest_dev *dev; 1349 }; 1350 1351 static void iso_callback (struct urb *urb) 1352 { 1353 struct iso_context *ctx = urb->context; 1354 1355 spin_lock(&ctx->lock); 1356 ctx->count--; 1357 1358 ctx->packet_count += urb->number_of_packets; 1359 if (urb->error_count > 0) 1360 ctx->errors += urb->error_count; 1361 else if (urb->status != 0) 1362 ctx->errors += urb->number_of_packets; 1363 1364 if (urb->status == 0 && ctx->count > (ctx->pending - 1) 1365 && !ctx->submit_error) { 1366 int status = usb_submit_urb (urb, GFP_ATOMIC); 1367 switch (status) { 1368 case 0: 1369 goto done; 1370 default: 1371 dev_err(&ctx->dev->intf->dev, 1372 "iso resubmit err %d\n", 1373 status); 1374 /* FALLTHROUGH */ 1375 case -ENODEV: /* disconnected */ 1376 case -ESHUTDOWN: /* endpoint disabled */ 1377 ctx->submit_error = 1; 1378 break; 1379 } 1380 } 1381 simple_free_urb (urb); 1382 1383 ctx->pending--; 1384 if (ctx->pending == 0) { 1385 if (ctx->errors) 1386 dev_err(&ctx->dev->intf->dev, 1387 "iso test, %lu errors out of %lu\n", 1388 ctx->errors, ctx->packet_count); 1389 complete (&ctx->done); 1390 } 1391 done: 1392 spin_unlock(&ctx->lock); 1393 } 1394 1395 static struct urb *iso_alloc_urb ( 1396 struct usb_device *udev, 1397 int pipe, 1398 struct usb_endpoint_descriptor *desc, 1399 long bytes 1400 ) 1401 { 1402 struct urb *urb; 1403 unsigned i, maxp, packets; 1404 1405 if (bytes < 0 || !desc) 1406 return NULL; 1407 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); 1408 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); 1409 packets = DIV_ROUND_UP(bytes, maxp); 1410 1411 urb = usb_alloc_urb (packets, GFP_KERNEL); 1412 if (!urb) 1413 return urb; 1414 urb->dev = udev; 1415 urb->pipe = pipe; 1416 1417 urb->number_of_packets = packets; 1418 urb->transfer_buffer_length = bytes; 1419 urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL, 1420 &urb->transfer_dma); 1421 if (!urb->transfer_buffer) { 1422 usb_free_urb (urb); 1423 return NULL; 1424 } 1425 memset (urb->transfer_buffer, 0, bytes); 1426 for (i = 0; i < packets; i++) { 1427 /* here, only the last packet will be short */ 1428 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); 1429 bytes -= urb->iso_frame_desc[i].length; 1430 1431 urb->iso_frame_desc[i].offset = maxp * i; 1432 } 1433 1434 urb->complete = iso_callback; 1435 // urb->context = SET BY CALLER 1436 urb->interval = 1 << (desc->bInterval - 1); 1437 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 1438 return urb; 1439 } 1440 1441 static int 1442 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, 1443 int pipe, struct usb_endpoint_descriptor *desc) 1444 { 1445 struct iso_context context; 1446 struct usb_device *udev; 1447 unsigned i; 1448 unsigned long packets = 0; 1449 int status = 0; 1450 struct urb *urbs[10]; /* FIXME no limit */ 1451 1452 if (param->sglen > 10) 1453 return -EDOM; 1454 1455 memset(&context, 0, sizeof context); 1456 context.count = param->iterations * param->sglen; 1457 context.dev = dev; 1458 init_completion (&context.done); 1459 spin_lock_init (&context.lock); 1460 1461 memset (urbs, 0, sizeof urbs); 1462 udev = testdev_to_usbdev (dev); 1463 dev_info(&dev->intf->dev, 1464 "... iso period %d %sframes, wMaxPacket %04x\n", 1465 1 << (desc->bInterval - 1), 1466 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1467 le16_to_cpu(desc->wMaxPacketSize)); 1468 1469 for (i = 0; i < param->sglen; i++) { 1470 urbs [i] = iso_alloc_urb (udev, pipe, desc, 1471 param->length); 1472 if (!urbs [i]) { 1473 status = -ENOMEM; 1474 goto fail; 1475 } 1476 packets += urbs[i]->number_of_packets; 1477 urbs [i]->context = &context; 1478 } 1479 packets *= param->iterations; 1480 dev_info(&dev->intf->dev, 1481 "... total %lu msec (%lu packets)\n", 1482 (packets * (1 << (desc->bInterval - 1))) 1483 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1484 packets); 1485 1486 spin_lock_irq (&context.lock); 1487 for (i = 0; i < param->sglen; i++) { 1488 ++context.pending; 1489 status = usb_submit_urb (urbs [i], GFP_ATOMIC); 1490 if (status < 0) { 1491 ERROR (dev, "submit iso[%d], error %d\n", i, status); 1492 if (i == 0) { 1493 spin_unlock_irq (&context.lock); 1494 goto fail; 1495 } 1496 1497 simple_free_urb (urbs [i]); 1498 context.pending--; 1499 context.submit_error = 1; 1500 break; 1501 } 1502 } 1503 spin_unlock_irq (&context.lock); 1504 1505 wait_for_completion (&context.done); 1506 1507 /* 1508 * Isochronous transfers are expected to fail sometimes. As an 1509 * arbitrary limit, we will report an error if any submissions 1510 * fail or if the transfer failure rate is > 10%. 1511 */ 1512 if (status != 0) 1513 ; 1514 else if (context.submit_error) 1515 status = -EACCES; 1516 else if (context.errors > context.packet_count / 10) 1517 status = -EIO; 1518 return status; 1519 1520 fail: 1521 for (i = 0; i < param->sglen; i++) { 1522 if (urbs [i]) 1523 simple_free_urb (urbs [i]); 1524 } 1525 return status; 1526 } 1527 1528 /*-------------------------------------------------------------------------*/ 1529 1530 /* We only have this one interface to user space, through usbfs. 1531 * User mode code can scan usbfs to find N different devices (maybe on 1532 * different busses) to use when testing, and allocate one thread per 1533 * test. So discovery is simplified, and we have no device naming issues. 1534 * 1535 * Don't use these only as stress/load tests. Use them along with with 1536 * other USB bus activity: plugging, unplugging, mousing, mp3 playback, 1537 * video capture, and so on. Run different tests at different times, in 1538 * different sequences. Nothing here should interact with other devices, 1539 * except indirectly by consuming USB bandwidth and CPU resources for test 1540 * threads and request completion. But the only way to know that for sure 1541 * is to test when HC queues are in use by many devices. 1542 * 1543 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(), 1544 * it locks out usbcore in certain code paths. Notably, if you disconnect 1545 * the device-under-test, khubd will wait block forever waiting for the 1546 * ioctl to complete ... so that usb_disconnect() can abort the pending 1547 * urbs and then call usbtest_disconnect(). To abort a test, you're best 1548 * off just killing the userspace task and waiting for it to exit. 1549 */ 1550 1551 /* No BKL needed */ 1552 static int 1553 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) 1554 { 1555 struct usbtest_dev *dev = usb_get_intfdata (intf); 1556 struct usb_device *udev = testdev_to_usbdev (dev); 1557 struct usbtest_param *param = buf; 1558 int retval = -EOPNOTSUPP; 1559 struct urb *urb; 1560 struct scatterlist *sg; 1561 struct usb_sg_request req; 1562 struct timeval start; 1563 unsigned i; 1564 1565 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. 1566 1567 pattern = mod_pattern; 1568 1569 if (code != USBTEST_REQUEST) 1570 return -EOPNOTSUPP; 1571 1572 if (param->iterations <= 0) 1573 return -EINVAL; 1574 1575 if (mutex_lock_interruptible(&dev->lock)) 1576 return -ERESTARTSYS; 1577 1578 /* FIXME: What if a system sleep starts while a test is running? */ 1579 1580 /* some devices, like ez-usb default devices, need a non-default 1581 * altsetting to have any active endpoints. some tests change 1582 * altsettings; force a default so most tests don't need to check. 1583 */ 1584 if (dev->info->alt >= 0) { 1585 int res; 1586 1587 if (intf->altsetting->desc.bInterfaceNumber) { 1588 mutex_unlock(&dev->lock); 1589 return -ENODEV; 1590 } 1591 res = set_altsetting (dev, dev->info->alt); 1592 if (res) { 1593 dev_err (&intf->dev, 1594 "set altsetting to %d failed, %d\n", 1595 dev->info->alt, res); 1596 mutex_unlock(&dev->lock); 1597 return res; 1598 } 1599 } 1600 1601 /* 1602 * Just a bunch of test cases that every HCD is expected to handle. 1603 * 1604 * Some may need specific firmware, though it'd be good to have 1605 * one firmware image to handle all the test cases. 1606 * 1607 * FIXME add more tests! cancel requests, verify the data, control 1608 * queueing, concurrent read+write threads, and so on. 1609 */ 1610 do_gettimeofday (&start); 1611 switch (param->test_num) { 1612 1613 case 0: 1614 dev_info(&intf->dev, "TEST 0: NOP\n"); 1615 retval = 0; 1616 break; 1617 1618 /* Simple non-queued bulk I/O tests */ 1619 case 1: 1620 if (dev->out_pipe == 0) 1621 break; 1622 dev_info(&intf->dev, 1623 "TEST 1: write %d bytes %u times\n", 1624 param->length, param->iterations); 1625 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1626 if (!urb) { 1627 retval = -ENOMEM; 1628 break; 1629 } 1630 // FIRMWARE: bulk sink (maybe accepts short writes) 1631 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1"); 1632 simple_free_urb (urb); 1633 break; 1634 case 2: 1635 if (dev->in_pipe == 0) 1636 break; 1637 dev_info(&intf->dev, 1638 "TEST 2: read %d bytes %u times\n", 1639 param->length, param->iterations); 1640 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1641 if (!urb) { 1642 retval = -ENOMEM; 1643 break; 1644 } 1645 // FIRMWARE: bulk source (maybe generates short writes) 1646 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2"); 1647 simple_free_urb (urb); 1648 break; 1649 case 3: 1650 if (dev->out_pipe == 0 || param->vary == 0) 1651 break; 1652 dev_info(&intf->dev, 1653 "TEST 3: write/%d 0..%d bytes %u times\n", 1654 param->vary, param->length, param->iterations); 1655 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1656 if (!urb) { 1657 retval = -ENOMEM; 1658 break; 1659 } 1660 // FIRMWARE: bulk sink (maybe accepts short writes) 1661 retval = simple_io(dev, urb, param->iterations, param->vary, 1662 0, "test3"); 1663 simple_free_urb (urb); 1664 break; 1665 case 4: 1666 if (dev->in_pipe == 0 || param->vary == 0) 1667 break; 1668 dev_info(&intf->dev, 1669 "TEST 4: read/%d 0..%d bytes %u times\n", 1670 param->vary, param->length, param->iterations); 1671 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1672 if (!urb) { 1673 retval = -ENOMEM; 1674 break; 1675 } 1676 // FIRMWARE: bulk source (maybe generates short writes) 1677 retval = simple_io(dev, urb, param->iterations, param->vary, 1678 0, "test4"); 1679 simple_free_urb (urb); 1680 break; 1681 1682 /* Queued bulk I/O tests */ 1683 case 5: 1684 if (dev->out_pipe == 0 || param->sglen == 0) 1685 break; 1686 dev_info(&intf->dev, 1687 "TEST 5: write %d sglists %d entries of %d bytes\n", 1688 param->iterations, 1689 param->sglen, param->length); 1690 sg = alloc_sglist (param->sglen, param->length, 0); 1691 if (!sg) { 1692 retval = -ENOMEM; 1693 break; 1694 } 1695 // FIRMWARE: bulk sink (maybe accepts short writes) 1696 retval = perform_sglist(dev, param->iterations, dev->out_pipe, 1697 &req, sg, param->sglen); 1698 free_sglist (sg, param->sglen); 1699 break; 1700 1701 case 6: 1702 if (dev->in_pipe == 0 || param->sglen == 0) 1703 break; 1704 dev_info(&intf->dev, 1705 "TEST 6: read %d sglists %d entries of %d bytes\n", 1706 param->iterations, 1707 param->sglen, param->length); 1708 sg = alloc_sglist (param->sglen, param->length, 0); 1709 if (!sg) { 1710 retval = -ENOMEM; 1711 break; 1712 } 1713 // FIRMWARE: bulk source (maybe generates short writes) 1714 retval = perform_sglist(dev, param->iterations, dev->in_pipe, 1715 &req, sg, param->sglen); 1716 free_sglist (sg, param->sglen); 1717 break; 1718 case 7: 1719 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 1720 break; 1721 dev_info(&intf->dev, 1722 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 1723 param->vary, param->iterations, 1724 param->sglen, param->length); 1725 sg = alloc_sglist (param->sglen, param->length, param->vary); 1726 if (!sg) { 1727 retval = -ENOMEM; 1728 break; 1729 } 1730 // FIRMWARE: bulk sink (maybe accepts short writes) 1731 retval = perform_sglist(dev, param->iterations, dev->out_pipe, 1732 &req, sg, param->sglen); 1733 free_sglist (sg, param->sglen); 1734 break; 1735 case 8: 1736 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 1737 break; 1738 dev_info(&intf->dev, 1739 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 1740 param->vary, param->iterations, 1741 param->sglen, param->length); 1742 sg = alloc_sglist (param->sglen, param->length, param->vary); 1743 if (!sg) { 1744 retval = -ENOMEM; 1745 break; 1746 } 1747 // FIRMWARE: bulk source (maybe generates short writes) 1748 retval = perform_sglist(dev, param->iterations, dev->in_pipe, 1749 &req, sg, param->sglen); 1750 free_sglist (sg, param->sglen); 1751 break; 1752 1753 /* non-queued sanity tests for control (chapter 9 subset) */ 1754 case 9: 1755 retval = 0; 1756 dev_info(&intf->dev, 1757 "TEST 9: ch9 (subset) control tests, %d times\n", 1758 param->iterations); 1759 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1760 retval = ch9_postconfig (dev); 1761 if (retval) 1762 dev_err(&intf->dev, "ch9 subset failed, " 1763 "iterations left %d\n", i); 1764 break; 1765 1766 /* queued control messaging */ 1767 case 10: 1768 if (param->sglen == 0) 1769 break; 1770 retval = 0; 1771 dev_info(&intf->dev, 1772 "TEST 10: queue %d control calls, %d times\n", 1773 param->sglen, 1774 param->iterations); 1775 retval = test_ctrl_queue (dev, param); 1776 break; 1777 1778 /* simple non-queued unlinks (ring with one urb) */ 1779 case 11: 1780 if (dev->in_pipe == 0 || !param->length) 1781 break; 1782 retval = 0; 1783 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n", 1784 param->iterations, param->length); 1785 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1786 retval = unlink_simple (dev, dev->in_pipe, 1787 param->length); 1788 if (retval) 1789 dev_err(&intf->dev, "unlink reads failed %d, " 1790 "iterations left %d\n", retval, i); 1791 break; 1792 case 12: 1793 if (dev->out_pipe == 0 || !param->length) 1794 break; 1795 retval = 0; 1796 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n", 1797 param->iterations, param->length); 1798 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1799 retval = unlink_simple (dev, dev->out_pipe, 1800 param->length); 1801 if (retval) 1802 dev_err(&intf->dev, "unlink writes failed %d, " 1803 "iterations left %d\n", retval, i); 1804 break; 1805 1806 /* ep halt tests */ 1807 case 13: 1808 if (dev->out_pipe == 0 && dev->in_pipe == 0) 1809 break; 1810 retval = 0; 1811 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n", 1812 param->iterations); 1813 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1814 retval = halt_simple (dev); 1815 1816 if (retval) 1817 ERROR(dev, "halts failed, iterations left %d\n", i); 1818 break; 1819 1820 /* control write tests */ 1821 case 14: 1822 if (!dev->info->ctrl_out) 1823 break; 1824 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 1825 param->iterations, 1826 realworld ? 1 : 0, param->length, 1827 param->vary); 1828 retval = ctrl_out(dev, param->iterations, 1829 param->length, param->vary); 1830 break; 1831 1832 /* iso write tests */ 1833 case 15: 1834 if (dev->out_iso_pipe == 0 || param->sglen == 0) 1835 break; 1836 dev_info(&intf->dev, 1837 "TEST 15: write %d iso, %d entries of %d bytes\n", 1838 param->iterations, 1839 param->sglen, param->length); 1840 // FIRMWARE: iso sink 1841 retval = test_iso_queue (dev, param, 1842 dev->out_iso_pipe, dev->iso_out); 1843 break; 1844 1845 /* iso read tests */ 1846 case 16: 1847 if (dev->in_iso_pipe == 0 || param->sglen == 0) 1848 break; 1849 dev_info(&intf->dev, 1850 "TEST 16: read %d iso, %d entries of %d bytes\n", 1851 param->iterations, 1852 param->sglen, param->length); 1853 // FIRMWARE: iso source 1854 retval = test_iso_queue (dev, param, 1855 dev->in_iso_pipe, dev->iso_in); 1856 break; 1857 1858 // FIXME unlink from queue (ring with N urbs) 1859 1860 // FIXME scatterlist cancel (needs helper thread) 1861 1862 } 1863 do_gettimeofday (¶m->duration); 1864 param->duration.tv_sec -= start.tv_sec; 1865 param->duration.tv_usec -= start.tv_usec; 1866 if (param->duration.tv_usec < 0) { 1867 param->duration.tv_usec += 1000 * 1000; 1868 param->duration.tv_sec -= 1; 1869 } 1870 mutex_unlock(&dev->lock); 1871 return retval; 1872 } 1873 1874 /*-------------------------------------------------------------------------*/ 1875 1876 static unsigned force_interrupt = 0; 1877 module_param (force_interrupt, uint, 0); 1878 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); 1879 1880 #ifdef GENERIC 1881 static unsigned short vendor; 1882 module_param(vendor, ushort, 0); 1883 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); 1884 1885 static unsigned short product; 1886 module_param(product, ushort, 0); 1887 MODULE_PARM_DESC (product, "product code (from vendor)"); 1888 #endif 1889 1890 static int 1891 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) 1892 { 1893 struct usb_device *udev; 1894 struct usbtest_dev *dev; 1895 struct usbtest_info *info; 1896 char *rtest, *wtest; 1897 char *irtest, *iwtest; 1898 1899 udev = interface_to_usbdev (intf); 1900 1901 #ifdef GENERIC 1902 /* specify devices by module parameters? */ 1903 if (id->match_flags == 0) { 1904 /* vendor match required, product match optional */ 1905 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) 1906 return -ENODEV; 1907 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 1908 return -ENODEV; 1909 dev_info(&intf->dev, "matched module params, " 1910 "vend=0x%04x prod=0x%04x\n", 1911 le16_to_cpu(udev->descriptor.idVendor), 1912 le16_to_cpu(udev->descriptor.idProduct)); 1913 } 1914 #endif 1915 1916 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1917 if (!dev) 1918 return -ENOMEM; 1919 info = (struct usbtest_info *) id->driver_info; 1920 dev->info = info; 1921 mutex_init(&dev->lock); 1922 1923 dev->intf = intf; 1924 1925 /* cacheline-aligned scratch for i/o */ 1926 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) { 1927 kfree (dev); 1928 return -ENOMEM; 1929 } 1930 1931 /* NOTE this doesn't yet test the handful of difference that are 1932 * visible with high speed interrupts: bigger maxpacket (1K) and 1933 * "high bandwidth" modes (up to 3 packets/uframe). 1934 */ 1935 rtest = wtest = ""; 1936 irtest = iwtest = ""; 1937 if (force_interrupt || udev->speed == USB_SPEED_LOW) { 1938 if (info->ep_in) { 1939 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); 1940 rtest = " intr-in"; 1941 } 1942 if (info->ep_out) { 1943 dev->out_pipe = usb_sndintpipe (udev, info->ep_out); 1944 wtest = " intr-out"; 1945 } 1946 } else { 1947 if (info->autoconf) { 1948 int status; 1949 1950 status = get_endpoints (dev, intf); 1951 if (status < 0) { 1952 WARNING(dev, "couldn't get endpoints, %d\n", 1953 status); 1954 return status; 1955 } 1956 /* may find bulk or ISO pipes */ 1957 } else { 1958 if (info->ep_in) 1959 dev->in_pipe = usb_rcvbulkpipe (udev, 1960 info->ep_in); 1961 if (info->ep_out) 1962 dev->out_pipe = usb_sndbulkpipe (udev, 1963 info->ep_out); 1964 } 1965 if (dev->in_pipe) 1966 rtest = " bulk-in"; 1967 if (dev->out_pipe) 1968 wtest = " bulk-out"; 1969 if (dev->in_iso_pipe) 1970 irtest = " iso-in"; 1971 if (dev->out_iso_pipe) 1972 iwtest = " iso-out"; 1973 } 1974 1975 usb_set_intfdata (intf, dev); 1976 dev_info (&intf->dev, "%s\n", info->name); 1977 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", 1978 ({ char *tmp; 1979 switch (udev->speed) { 1980 case USB_SPEED_LOW: tmp = "low"; break; 1981 case USB_SPEED_FULL: tmp = "full"; break; 1982 case USB_SPEED_HIGH: tmp = "high"; break; 1983 default: tmp = "unknown"; break; 1984 }; tmp; }), 1985 info->ctrl_out ? " in/out" : "", 1986 rtest, wtest, 1987 irtest, iwtest, 1988 info->alt >= 0 ? " (+alt)" : ""); 1989 return 0; 1990 } 1991 1992 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) 1993 { 1994 return 0; 1995 } 1996 1997 static int usbtest_resume (struct usb_interface *intf) 1998 { 1999 return 0; 2000 } 2001 2002 2003 static void usbtest_disconnect (struct usb_interface *intf) 2004 { 2005 struct usbtest_dev *dev = usb_get_intfdata (intf); 2006 2007 usb_set_intfdata (intf, NULL); 2008 dev_dbg (&intf->dev, "disconnect\n"); 2009 kfree (dev); 2010 } 2011 2012 /* Basic testing only needs a device that can source or sink bulk traffic. 2013 * Any device can test control transfers (default with GENERIC binding). 2014 * 2015 * Several entries work with the default EP0 implementation that's built 2016 * into EZ-USB chips. There's a default vendor ID which can be overridden 2017 * by (very) small config EEPROMS, but otherwise all these devices act 2018 * identically until firmware is loaded: only EP0 works. It turns out 2019 * to be easy to make other endpoints work, without modifying that EP0 2020 * behavior. For now, we expect that kind of firmware. 2021 */ 2022 2023 /* an21xx or fx versions of ez-usb */ 2024 static struct usbtest_info ez1_info = { 2025 .name = "EZ-USB device", 2026 .ep_in = 2, 2027 .ep_out = 2, 2028 .alt = 1, 2029 }; 2030 2031 /* fx2 version of ez-usb */ 2032 static struct usbtest_info ez2_info = { 2033 .name = "FX2 device", 2034 .ep_in = 6, 2035 .ep_out = 2, 2036 .alt = 1, 2037 }; 2038 2039 /* ezusb family device with dedicated usb test firmware, 2040 */ 2041 static struct usbtest_info fw_info = { 2042 .name = "usb test device", 2043 .ep_in = 2, 2044 .ep_out = 2, 2045 .alt = 1, 2046 .autoconf = 1, // iso and ctrl_out need autoconf 2047 .ctrl_out = 1, 2048 .iso = 1, // iso_ep's are #8 in/out 2049 }; 2050 2051 /* peripheral running Linux and 'zero.c' test firmware, or 2052 * its user-mode cousin. different versions of this use 2053 * different hardware with the same vendor/product codes. 2054 * host side MUST rely on the endpoint descriptors. 2055 */ 2056 static struct usbtest_info gz_info = { 2057 .name = "Linux gadget zero", 2058 .autoconf = 1, 2059 .ctrl_out = 1, 2060 .alt = 0, 2061 }; 2062 2063 static struct usbtest_info um_info = { 2064 .name = "Linux user mode test driver", 2065 .autoconf = 1, 2066 .alt = -1, 2067 }; 2068 2069 static struct usbtest_info um2_info = { 2070 .name = "Linux user mode ISO test driver", 2071 .autoconf = 1, 2072 .iso = 1, 2073 .alt = -1, 2074 }; 2075 2076 #ifdef IBOT2 2077 /* this is a nice source of high speed bulk data; 2078 * uses an FX2, with firmware provided in the device 2079 */ 2080 static struct usbtest_info ibot2_info = { 2081 .name = "iBOT2 webcam", 2082 .ep_in = 2, 2083 .alt = -1, 2084 }; 2085 #endif 2086 2087 #ifdef GENERIC 2088 /* we can use any device to test control traffic */ 2089 static struct usbtest_info generic_info = { 2090 .name = "Generic USB device", 2091 .alt = -1, 2092 }; 2093 #endif 2094 2095 2096 static const struct usb_device_id id_table[] = { 2097 2098 /*-------------------------------------------------------------*/ 2099 2100 /* EZ-USB devices which download firmware to replace (or in our 2101 * case augment) the default device implementation. 2102 */ 2103 2104 /* generic EZ-USB FX controller */ 2105 { USB_DEVICE (0x0547, 0x2235), 2106 .driver_info = (unsigned long) &ez1_info, 2107 }, 2108 2109 /* CY3671 development board with EZ-USB FX */ 2110 { USB_DEVICE (0x0547, 0x0080), 2111 .driver_info = (unsigned long) &ez1_info, 2112 }, 2113 2114 /* generic EZ-USB FX2 controller (or development board) */ 2115 { USB_DEVICE (0x04b4, 0x8613), 2116 .driver_info = (unsigned long) &ez2_info, 2117 }, 2118 2119 /* re-enumerated usb test device firmware */ 2120 { USB_DEVICE (0xfff0, 0xfff0), 2121 .driver_info = (unsigned long) &fw_info, 2122 }, 2123 2124 /* "Gadget Zero" firmware runs under Linux */ 2125 { USB_DEVICE (0x0525, 0xa4a0), 2126 .driver_info = (unsigned long) &gz_info, 2127 }, 2128 2129 /* so does a user-mode variant */ 2130 { USB_DEVICE (0x0525, 0xa4a4), 2131 .driver_info = (unsigned long) &um_info, 2132 }, 2133 2134 /* ... and a user-mode variant that talks iso */ 2135 { USB_DEVICE (0x0525, 0xa4a3), 2136 .driver_info = (unsigned long) &um2_info, 2137 }, 2138 2139 #ifdef KEYSPAN_19Qi 2140 /* Keyspan 19qi uses an21xx (original EZ-USB) */ 2141 // this does not coexist with the real Keyspan 19qi driver! 2142 { USB_DEVICE (0x06cd, 0x010b), 2143 .driver_info = (unsigned long) &ez1_info, 2144 }, 2145 #endif 2146 2147 /*-------------------------------------------------------------*/ 2148 2149 #ifdef IBOT2 2150 /* iBOT2 makes a nice source of high speed bulk-in data */ 2151 // this does not coexist with a real iBOT2 driver! 2152 { USB_DEVICE (0x0b62, 0x0059), 2153 .driver_info = (unsigned long) &ibot2_info, 2154 }, 2155 #endif 2156 2157 /*-------------------------------------------------------------*/ 2158 2159 #ifdef GENERIC 2160 /* module params can specify devices to use for control tests */ 2161 { .driver_info = (unsigned long) &generic_info, }, 2162 #endif 2163 2164 /*-------------------------------------------------------------*/ 2165 2166 { } 2167 }; 2168 MODULE_DEVICE_TABLE (usb, id_table); 2169 2170 static struct usb_driver usbtest_driver = { 2171 .name = "usbtest", 2172 .id_table = id_table, 2173 .probe = usbtest_probe, 2174 .unlocked_ioctl = usbtest_ioctl, 2175 .disconnect = usbtest_disconnect, 2176 .suspend = usbtest_suspend, 2177 .resume = usbtest_resume, 2178 }; 2179 2180 /*-------------------------------------------------------------------------*/ 2181 2182 static int __init usbtest_init (void) 2183 { 2184 #ifdef GENERIC 2185 if (vendor) 2186 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product); 2187 #endif 2188 return usb_register (&usbtest_driver); 2189 } 2190 module_init (usbtest_init); 2191 2192 static void __exit usbtest_exit (void) 2193 { 2194 usb_deregister (&usbtest_driver); 2195 } 2196 module_exit (usbtest_exit); 2197 2198 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); 2199 MODULE_LICENSE ("GPL"); 2200 2201