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 xprintk(tdev,level,fmt,args...) \ 83 dev_printk(level , &(tdev)->intf->dev , fmt , ## args) 84 85 #ifdef DEBUG 86 #define DBG(dev,fmt,args...) \ 87 xprintk(dev , KERN_DEBUG , fmt , ## args) 88 #else 89 #define DBG(dev,fmt,args...) \ 90 do { } while (0) 91 #endif /* DEBUG */ 92 93 #ifdef VERBOSE 94 #define VDBG DBG 95 #else 96 #define VDBG(dev,fmt,args...) \ 97 do { } while (0) 98 #endif /* VERBOSE */ 99 100 #define ERROR(dev,fmt,args...) \ 101 xprintk(dev , KERN_ERR , fmt , ## args) 102 #define WARN(dev,fmt,args...) \ 103 xprintk(dev , KERN_WARNING , fmt , ## args) 104 #define INFO(dev,fmt,args...) \ 105 xprintk(dev , KERN_INFO , fmt , ## args) 106 107 /*-------------------------------------------------------------------------*/ 108 109 static int 110 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf) 111 { 112 int tmp; 113 struct usb_host_interface *alt; 114 struct usb_host_endpoint *in, *out; 115 struct usb_host_endpoint *iso_in, *iso_out; 116 struct usb_device *udev; 117 118 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { 119 unsigned ep; 120 121 in = out = NULL; 122 iso_in = iso_out = NULL; 123 alt = intf->altsetting + tmp; 124 125 /* take the first altsetting with in-bulk + out-bulk; 126 * ignore other endpoints and altsetttings. 127 */ 128 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { 129 struct usb_host_endpoint *e; 130 131 e = alt->endpoint + ep; 132 switch (e->desc.bmAttributes) { 133 case USB_ENDPOINT_XFER_BULK: 134 break; 135 case USB_ENDPOINT_XFER_ISOC: 136 if (dev->info->iso) 137 goto try_iso; 138 // FALLTHROUGH 139 default: 140 continue; 141 } 142 if (usb_endpoint_dir_in(&e->desc)) { 143 if (!in) 144 in = e; 145 } else { 146 if (!out) 147 out = e; 148 } 149 continue; 150 try_iso: 151 if (usb_endpoint_dir_in(&e->desc)) { 152 if (!iso_in) 153 iso_in = e; 154 } else { 155 if (!iso_out) 156 iso_out = e; 157 } 158 } 159 if ((in && out) || (iso_in && iso_out)) 160 goto found; 161 } 162 return -EINVAL; 163 164 found: 165 udev = testdev_to_usbdev (dev); 166 if (alt->desc.bAlternateSetting != 0) { 167 tmp = usb_set_interface (udev, 168 alt->desc.bInterfaceNumber, 169 alt->desc.bAlternateSetting); 170 if (tmp < 0) 171 return tmp; 172 } 173 174 if (in) { 175 dev->in_pipe = usb_rcvbulkpipe (udev, 176 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 177 dev->out_pipe = usb_sndbulkpipe (udev, 178 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 179 } 180 if (iso_in) { 181 dev->iso_in = &iso_in->desc; 182 dev->in_iso_pipe = usb_rcvisocpipe (udev, 183 iso_in->desc.bEndpointAddress 184 & USB_ENDPOINT_NUMBER_MASK); 185 dev->iso_out = &iso_out->desc; 186 dev->out_iso_pipe = usb_sndisocpipe (udev, 187 iso_out->desc.bEndpointAddress 188 & USB_ENDPOINT_NUMBER_MASK); 189 } 190 return 0; 191 } 192 193 /*-------------------------------------------------------------------------*/ 194 195 /* Support for testing basic non-queued I/O streams. 196 * 197 * These just package urbs as requests that can be easily canceled. 198 * Each urb's data buffer is dynamically allocated; callers can fill 199 * them with non-zero test data (or test for it) when appropriate. 200 */ 201 202 static void simple_callback (struct urb *urb) 203 { 204 complete(urb->context); 205 } 206 207 static struct urb *simple_alloc_urb ( 208 struct usb_device *udev, 209 int pipe, 210 unsigned long bytes 211 ) 212 { 213 struct urb *urb; 214 215 if (bytes < 0) 216 return NULL; 217 urb = usb_alloc_urb (0, GFP_KERNEL); 218 if (!urb) 219 return urb; 220 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); 221 urb->interval = (udev->speed == USB_SPEED_HIGH) 222 ? (INTERRUPT_RATE << 3) 223 : INTERRUPT_RATE; 224 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 225 if (usb_pipein (pipe)) 226 urb->transfer_flags |= URB_SHORT_NOT_OK; 227 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, 228 &urb->transfer_dma); 229 if (!urb->transfer_buffer) { 230 usb_free_urb (urb); 231 urb = NULL; 232 } else 233 memset (urb->transfer_buffer, 0, bytes); 234 return urb; 235 } 236 237 static unsigned pattern = 0; 238 module_param (pattern, uint, S_IRUGO); 239 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)"); 240 241 static inline void simple_fill_buf (struct urb *urb) 242 { 243 unsigned i; 244 u8 *buf = urb->transfer_buffer; 245 unsigned len = urb->transfer_buffer_length; 246 247 switch (pattern) { 248 default: 249 // FALLTHROUGH 250 case 0: 251 memset (buf, 0, len); 252 break; 253 case 1: /* mod63 */ 254 for (i = 0; i < len; i++) 255 *buf++ = (u8) (i % 63); 256 break; 257 } 258 } 259 260 static inline int simple_check_buf (struct urb *urb) 261 { 262 unsigned i; 263 u8 expected; 264 u8 *buf = urb->transfer_buffer; 265 unsigned len = urb->actual_length; 266 267 for (i = 0; i < len; i++, buf++) { 268 switch (pattern) { 269 /* all-zeroes has no synchronization issues */ 270 case 0: 271 expected = 0; 272 break; 273 /* mod63 stays in sync with short-terminated transfers, 274 * or otherwise when host and gadget agree on how large 275 * each usb transfer request should be. resync is done 276 * with set_interface or set_config. 277 */ 278 case 1: /* mod63 */ 279 expected = i % 63; 280 break; 281 /* always fail unsupported patterns */ 282 default: 283 expected = !*buf; 284 break; 285 } 286 if (*buf == expected) 287 continue; 288 dbg ("buf[%d] = %d (not %d)", i, *buf, expected); 289 return -EINVAL; 290 } 291 return 0; 292 } 293 294 static void simple_free_urb (struct urb *urb) 295 { 296 usb_buffer_free (urb->dev, urb->transfer_buffer_length, 297 urb->transfer_buffer, urb->transfer_dma); 298 usb_free_urb (urb); 299 } 300 301 static int simple_io ( 302 struct urb *urb, 303 int iterations, 304 int vary, 305 int expected, 306 const char *label 307 ) 308 { 309 struct usb_device *udev = urb->dev; 310 int max = urb->transfer_buffer_length; 311 struct completion completion; 312 int retval = 0; 313 314 urb->context = &completion; 315 while (retval == 0 && iterations-- > 0) { 316 init_completion (&completion); 317 if (usb_pipeout (urb->pipe)) 318 simple_fill_buf (urb); 319 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) 320 break; 321 322 /* NOTE: no timeouts; can't be broken out of by interrupt */ 323 wait_for_completion (&completion); 324 retval = urb->status; 325 urb->dev = udev; 326 if (retval == 0 && usb_pipein (urb->pipe)) 327 retval = simple_check_buf (urb); 328 329 if (vary) { 330 int len = urb->transfer_buffer_length; 331 332 len += vary; 333 len %= max; 334 if (len == 0) 335 len = (vary < max) ? vary : max; 336 urb->transfer_buffer_length = len; 337 } 338 339 /* FIXME if endpoint halted, clear halt (and log) */ 340 } 341 urb->transfer_buffer_length = max; 342 343 if (expected != retval) 344 dev_dbg (&udev->dev, 345 "%s failed, iterations left %d, status %d (not %d)\n", 346 label, iterations, retval, expected); 347 return retval; 348 } 349 350 351 /*-------------------------------------------------------------------------*/ 352 353 /* We use scatterlist primitives to test queued I/O. 354 * Yes, this also tests the scatterlist primitives. 355 */ 356 357 static void free_sglist (struct scatterlist *sg, int nents) 358 { 359 unsigned i; 360 361 if (!sg) 362 return; 363 for (i = 0; i < nents; i++) { 364 if (!sg_page(&sg[i])) 365 continue; 366 kfree (sg_virt(&sg[i])); 367 } 368 kfree (sg); 369 } 370 371 static struct scatterlist * 372 alloc_sglist (int nents, int max, int vary) 373 { 374 struct scatterlist *sg; 375 unsigned i; 376 unsigned size = max; 377 378 sg = kmalloc (nents * sizeof *sg, GFP_KERNEL); 379 if (!sg) 380 return NULL; 381 sg_init_table(sg, nents); 382 383 for (i = 0; i < nents; i++) { 384 char *buf; 385 unsigned j; 386 387 buf = kzalloc (size, GFP_KERNEL); 388 if (!buf) { 389 free_sglist (sg, i); 390 return NULL; 391 } 392 393 /* kmalloc pages are always physically contiguous! */ 394 sg_set_buf(&sg[i], buf, size); 395 396 switch (pattern) { 397 case 0: 398 /* already zeroed */ 399 break; 400 case 1: 401 for (j = 0; j < size; j++) 402 *buf++ = (u8) (j % 63); 403 break; 404 } 405 406 if (vary) { 407 size += vary; 408 size %= max; 409 if (size == 0) 410 size = (vary < max) ? vary : max; 411 } 412 } 413 414 return sg; 415 } 416 417 static int perform_sglist ( 418 struct usb_device *udev, 419 unsigned iterations, 420 int pipe, 421 struct usb_sg_request *req, 422 struct scatterlist *sg, 423 int nents 424 ) 425 { 426 int retval = 0; 427 428 while (retval == 0 && iterations-- > 0) { 429 retval = usb_sg_init (req, udev, pipe, 430 (udev->speed == USB_SPEED_HIGH) 431 ? (INTERRUPT_RATE << 3) 432 : INTERRUPT_RATE, 433 sg, nents, 0, GFP_KERNEL); 434 435 if (retval) 436 break; 437 usb_sg_wait (req); 438 retval = req->status; 439 440 /* FIXME check resulting data pattern */ 441 442 /* FIXME if endpoint halted, clear halt (and log) */ 443 } 444 445 // FIXME for unlink or fault handling tests, don't report 446 // failure if retval is as we expected ... 447 448 if (retval) 449 dbg ("perform_sglist failed, iterations left %d, status %d", 450 iterations, retval); 451 return retval; 452 } 453 454 455 /*-------------------------------------------------------------------------*/ 456 457 /* unqueued control message testing 458 * 459 * there's a nice set of device functional requirements in chapter 9 of the 460 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use 461 * special test firmware. 462 * 463 * we know the device is configured (or suspended) by the time it's visible 464 * through usbfs. we can't change that, so we won't test enumeration (which 465 * worked 'well enough' to get here, this time), power management (ditto), 466 * or remote wakeup (which needs human interaction). 467 */ 468 469 static unsigned realworld = 1; 470 module_param (realworld, uint, 0); 471 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); 472 473 static int get_altsetting (struct usbtest_dev *dev) 474 { 475 struct usb_interface *iface = dev->intf; 476 struct usb_device *udev = interface_to_usbdev (iface); 477 int retval; 478 479 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 480 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, 481 0, iface->altsetting [0].desc.bInterfaceNumber, 482 dev->buf, 1, USB_CTRL_GET_TIMEOUT); 483 switch (retval) { 484 case 1: 485 return dev->buf [0]; 486 case 0: 487 retval = -ERANGE; 488 // FALLTHROUGH 489 default: 490 return retval; 491 } 492 } 493 494 static int set_altsetting (struct usbtest_dev *dev, int alternate) 495 { 496 struct usb_interface *iface = dev->intf; 497 struct usb_device *udev; 498 499 if (alternate < 0 || alternate >= 256) 500 return -EINVAL; 501 502 udev = interface_to_usbdev (iface); 503 return usb_set_interface (udev, 504 iface->altsetting [0].desc.bInterfaceNumber, 505 alternate); 506 } 507 508 static int is_good_config (char *buf, int len) 509 { 510 struct usb_config_descriptor *config; 511 512 if (len < sizeof *config) 513 return 0; 514 config = (struct usb_config_descriptor *) buf; 515 516 switch (config->bDescriptorType) { 517 case USB_DT_CONFIG: 518 case USB_DT_OTHER_SPEED_CONFIG: 519 if (config->bLength != 9) { 520 dbg ("bogus config descriptor length"); 521 return 0; 522 } 523 /* this bit 'must be 1' but often isn't */ 524 if (!realworld && !(config->bmAttributes & 0x80)) { 525 dbg ("high bit of config attributes not set"); 526 return 0; 527 } 528 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 529 dbg ("reserved config bits set"); 530 return 0; 531 } 532 break; 533 default: 534 return 0; 535 } 536 537 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ 538 return 1; 539 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 540 return 1; 541 dbg ("bogus config descriptor read size"); 542 return 0; 543 } 544 545 /* sanity test for standard requests working with usb_control_mesg() and some 546 * of the utility functions which use it. 547 * 548 * this doesn't test how endpoint halts behave or data toggles get set, since 549 * we won't do I/O to bulk/interrupt endpoints here (which is how to change 550 * halt or toggle). toggle testing is impractical without support from hcds. 551 * 552 * this avoids failing devices linux would normally work with, by not testing 553 * config/altsetting operations for devices that only support their defaults. 554 * such devices rarely support those needless operations. 555 * 556 * NOTE that since this is a sanity test, it's not examining boundary cases 557 * to see if usbcore, hcd, and device all behave right. such testing would 558 * involve varied read sizes and other operation sequences. 559 */ 560 static int ch9_postconfig (struct usbtest_dev *dev) 561 { 562 struct usb_interface *iface = dev->intf; 563 struct usb_device *udev = interface_to_usbdev (iface); 564 int i, alt, retval; 565 566 /* [9.2.3] if there's more than one altsetting, we need to be able to 567 * set and get each one. mostly trusts the descriptors from usbcore. 568 */ 569 for (i = 0; i < iface->num_altsetting; i++) { 570 571 /* 9.2.3 constrains the range here */ 572 alt = iface->altsetting [i].desc.bAlternateSetting; 573 if (alt < 0 || alt >= iface->num_altsetting) { 574 dev_dbg (&iface->dev, 575 "invalid alt [%d].bAltSetting = %d\n", 576 i, alt); 577 } 578 579 /* [real world] get/set unimplemented if there's only one */ 580 if (realworld && iface->num_altsetting == 1) 581 continue; 582 583 /* [9.4.10] set_interface */ 584 retval = set_altsetting (dev, alt); 585 if (retval) { 586 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n", 587 alt, retval); 588 return retval; 589 } 590 591 /* [9.4.4] get_interface always works */ 592 retval = get_altsetting (dev); 593 if (retval != alt) { 594 dev_dbg (&iface->dev, "get alt should be %d, was %d\n", 595 alt, retval); 596 return (retval < 0) ? retval : -EDOM; 597 } 598 599 } 600 601 /* [real world] get_config unimplemented if there's only one */ 602 if (!realworld || udev->descriptor.bNumConfigurations != 1) { 603 int expected = udev->actconfig->desc.bConfigurationValue; 604 605 /* [9.4.2] get_configuration always works 606 * ... although some cheap devices (like one TI Hub I've got) 607 * won't return config descriptors except before set_config. 608 */ 609 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 610 USB_REQ_GET_CONFIGURATION, 611 USB_DIR_IN | USB_RECIP_DEVICE, 612 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 613 if (retval != 1 || dev->buf [0] != expected) { 614 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n", 615 retval, dev->buf[0], expected); 616 return (retval < 0) ? retval : -EDOM; 617 } 618 } 619 620 /* there's always [9.4.3] a device descriptor [9.6.1] */ 621 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, 622 dev->buf, sizeof udev->descriptor); 623 if (retval != sizeof udev->descriptor) { 624 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval); 625 return (retval < 0) ? retval : -EDOM; 626 } 627 628 /* there's always [9.4.3] at least one config descriptor [9.6.3] */ 629 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 630 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, 631 dev->buf, TBUF_SIZE); 632 if (!is_good_config (dev->buf, retval)) { 633 dev_dbg (&iface->dev, 634 "config [%d] descriptor --> %d\n", 635 i, retval); 636 return (retval < 0) ? retval : -EDOM; 637 } 638 639 // FIXME cross-checking udev->config[i] to make sure usbcore 640 // parsed it right (etc) would be good testing paranoia 641 } 642 643 /* and sometimes [9.2.6.6] speed dependent descriptors */ 644 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { 645 struct usb_qualifier_descriptor *d = NULL; 646 647 /* device qualifier [9.6.2] */ 648 retval = usb_get_descriptor (udev, 649 USB_DT_DEVICE_QUALIFIER, 0, dev->buf, 650 sizeof (struct usb_qualifier_descriptor)); 651 if (retval == -EPIPE) { 652 if (udev->speed == USB_SPEED_HIGH) { 653 dev_dbg (&iface->dev, 654 "hs dev qualifier --> %d\n", 655 retval); 656 return (retval < 0) ? retval : -EDOM; 657 } 658 /* usb2.0 but not high-speed capable; fine */ 659 } else if (retval != sizeof (struct usb_qualifier_descriptor)) { 660 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval); 661 return (retval < 0) ? retval : -EDOM; 662 } else 663 d = (struct usb_qualifier_descriptor *) dev->buf; 664 665 /* might not have [9.6.2] any other-speed configs [9.6.4] */ 666 if (d) { 667 unsigned max = d->bNumConfigurations; 668 for (i = 0; i < max; i++) { 669 retval = usb_get_descriptor (udev, 670 USB_DT_OTHER_SPEED_CONFIG, i, 671 dev->buf, TBUF_SIZE); 672 if (!is_good_config (dev->buf, retval)) { 673 dev_dbg (&iface->dev, 674 "other speed config --> %d\n", 675 retval); 676 return (retval < 0) ? retval : -EDOM; 677 } 678 } 679 } 680 } 681 // FIXME fetch strings from at least the device descriptor 682 683 /* [9.4.5] get_status always works */ 684 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); 685 if (retval != 2) { 686 dev_dbg (&iface->dev, "get dev status --> %d\n", retval); 687 return (retval < 0) ? retval : -EDOM; 688 } 689 690 // FIXME configuration.bmAttributes says if we could try to set/clear 691 // the device's remote wakeup feature ... if we can, test that here 692 693 retval = usb_get_status (udev, USB_RECIP_INTERFACE, 694 iface->altsetting [0].desc.bInterfaceNumber, dev->buf); 695 if (retval != 2) { 696 dev_dbg (&iface->dev, "get interface status --> %d\n", retval); 697 return (retval < 0) ? retval : -EDOM; 698 } 699 // FIXME get status for each endpoint in the interface 700 701 return 0; 702 } 703 704 /*-------------------------------------------------------------------------*/ 705 706 /* use ch9 requests to test whether: 707 * (a) queues work for control, keeping N subtests queued and 708 * active (auto-resubmit) for M loops through the queue. 709 * (b) protocol stalls (control-only) will autorecover. 710 * it's not like bulk/intr; no halt clearing. 711 * (c) short control reads are reported and handled. 712 * (d) queues are always processed in-order 713 */ 714 715 struct ctrl_ctx { 716 spinlock_t lock; 717 struct usbtest_dev *dev; 718 struct completion complete; 719 unsigned count; 720 unsigned pending; 721 int status; 722 struct urb **urb; 723 struct usbtest_param *param; 724 int last; 725 }; 726 727 #define NUM_SUBCASES 15 /* how many test subcases here? */ 728 729 struct subcase { 730 struct usb_ctrlrequest setup; 731 int number; 732 int expected; 733 }; 734 735 static void ctrl_complete (struct urb *urb) 736 { 737 struct ctrl_ctx *ctx = urb->context; 738 struct usb_ctrlrequest *reqp; 739 struct subcase *subcase; 740 int status = urb->status; 741 742 reqp = (struct usb_ctrlrequest *)urb->setup_packet; 743 subcase = container_of (reqp, struct subcase, setup); 744 745 spin_lock (&ctx->lock); 746 ctx->count--; 747 ctx->pending--; 748 749 /* queue must transfer and complete in fifo order, unless 750 * usb_unlink_urb() is used to unlink something not at the 751 * physical queue head (not tested). 752 */ 753 if (subcase->number > 0) { 754 if ((subcase->number - ctx->last) != 1) { 755 dbg ("subcase %d completed out of order, last %d", 756 subcase->number, ctx->last); 757 status = -EDOM; 758 ctx->last = subcase->number; 759 goto error; 760 } 761 } 762 ctx->last = subcase->number; 763 764 /* succeed or fault in only one way? */ 765 if (status == subcase->expected) 766 status = 0; 767 768 /* async unlink for cleanup? */ 769 else if (status != -ECONNRESET) { 770 771 /* some faults are allowed, not required */ 772 if (subcase->expected > 0 && ( 773 ((status == -subcase->expected /* happened */ 774 || status == 0)))) /* didn't */ 775 status = 0; 776 /* sometimes more than one fault is allowed */ 777 else if (subcase->number == 12 && status == -EPIPE) 778 status = 0; 779 else 780 dbg ("subtest %d error, status %d", 781 subcase->number, status); 782 } 783 784 /* unexpected status codes mean errors; ideally, in hardware */ 785 if (status) { 786 error: 787 if (ctx->status == 0) { 788 int i; 789 790 ctx->status = status; 791 info ("control queue %02x.%02x, err %d, %d left", 792 reqp->bRequestType, reqp->bRequest, 793 status, ctx->count); 794 795 /* FIXME this "unlink everything" exit route should 796 * be a separate test case. 797 */ 798 799 /* unlink whatever's still pending */ 800 for (i = 1; i < ctx->param->sglen; i++) { 801 struct urb *u = ctx->urb [ 802 (i + subcase->number) % ctx->param->sglen]; 803 804 if (u == urb || !u->dev) 805 continue; 806 spin_unlock(&ctx->lock); 807 status = usb_unlink_urb (u); 808 spin_lock(&ctx->lock); 809 switch (status) { 810 case -EINPROGRESS: 811 case -EBUSY: 812 case -EIDRM: 813 continue; 814 default: 815 dbg ("urb unlink --> %d", status); 816 } 817 } 818 status = ctx->status; 819 } 820 } 821 822 /* resubmit if we need to, else mark this as done */ 823 if ((status == 0) && (ctx->pending < ctx->count)) { 824 if ((status = usb_submit_urb (urb, GFP_ATOMIC)) != 0) { 825 dbg ("can't resubmit ctrl %02x.%02x, err %d", 826 reqp->bRequestType, reqp->bRequest, status); 827 urb->dev = NULL; 828 } else 829 ctx->pending++; 830 } else 831 urb->dev = NULL; 832 833 /* signal completion when nothing's queued */ 834 if (ctx->pending == 0) 835 complete (&ctx->complete); 836 spin_unlock (&ctx->lock); 837 } 838 839 static int 840 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) 841 { 842 struct usb_device *udev = testdev_to_usbdev (dev); 843 struct urb **urb; 844 struct ctrl_ctx context; 845 int i; 846 847 spin_lock_init (&context.lock); 848 context.dev = dev; 849 init_completion (&context.complete); 850 context.count = param->sglen * param->iterations; 851 context.pending = 0; 852 context.status = -ENOMEM; 853 context.param = param; 854 context.last = -1; 855 856 /* allocate and init the urbs we'll queue. 857 * as with bulk/intr sglists, sglen is the queue depth; it also 858 * controls which subtests run (more tests than sglen) or rerun. 859 */ 860 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); 861 if (!urb) 862 return -ENOMEM; 863 for (i = 0; i < param->sglen; i++) { 864 int pipe = usb_rcvctrlpipe (udev, 0); 865 unsigned len; 866 struct urb *u; 867 struct usb_ctrlrequest req; 868 struct subcase *reqp; 869 int expected = 0; 870 871 /* requests here are mostly expected to succeed on any 872 * device, but some are chosen to trigger protocol stalls 873 * or short reads. 874 */ 875 memset (&req, 0, sizeof req); 876 req.bRequest = USB_REQ_GET_DESCRIPTOR; 877 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 878 879 switch (i % NUM_SUBCASES) { 880 case 0: // get device descriptor 881 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); 882 len = sizeof (struct usb_device_descriptor); 883 break; 884 case 1: // get first config descriptor (only) 885 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 886 len = sizeof (struct usb_config_descriptor); 887 break; 888 case 2: // get altsetting (OFTEN STALLS) 889 req.bRequest = USB_REQ_GET_INTERFACE; 890 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 891 // index = 0 means first interface 892 len = 1; 893 expected = EPIPE; 894 break; 895 case 3: // get interface status 896 req.bRequest = USB_REQ_GET_STATUS; 897 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 898 // interface 0 899 len = 2; 900 break; 901 case 4: // get device status 902 req.bRequest = USB_REQ_GET_STATUS; 903 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 904 len = 2; 905 break; 906 case 5: // get device qualifier (MAY STALL) 907 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); 908 len = sizeof (struct usb_qualifier_descriptor); 909 if (udev->speed != USB_SPEED_HIGH) 910 expected = EPIPE; 911 break; 912 case 6: // get first config descriptor, plus interface 913 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 914 len = sizeof (struct usb_config_descriptor); 915 len += sizeof (struct usb_interface_descriptor); 916 break; 917 case 7: // get interface descriptor (ALWAYS STALLS) 918 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 919 // interface == 0 920 len = sizeof (struct usb_interface_descriptor); 921 expected = EPIPE; 922 break; 923 // NOTE: two consecutive stalls in the queue here. 924 // that tests fault recovery a bit more aggressively. 925 case 8: // clear endpoint halt (USUALLY STALLS) 926 req.bRequest = USB_REQ_CLEAR_FEATURE; 927 req.bRequestType = USB_RECIP_ENDPOINT; 928 // wValue 0 == ep halt 929 // wIndex 0 == ep0 (shouldn't halt!) 930 len = 0; 931 pipe = usb_sndctrlpipe (udev, 0); 932 expected = EPIPE; 933 break; 934 case 9: // get endpoint status 935 req.bRequest = USB_REQ_GET_STATUS; 936 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; 937 // endpoint 0 938 len = 2; 939 break; 940 case 10: // trigger short read (EREMOTEIO) 941 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 942 len = 1024; 943 expected = -EREMOTEIO; 944 break; 945 // NOTE: two consecutive _different_ faults in the queue. 946 case 11: // get endpoint descriptor (ALWAYS STALLS) 947 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); 948 // endpoint == 0 949 len = sizeof (struct usb_interface_descriptor); 950 expected = EPIPE; 951 break; 952 // NOTE: sometimes even a third fault in the queue! 953 case 12: // get string 0 descriptor (MAY STALL) 954 req.wValue = cpu_to_le16 (USB_DT_STRING << 8); 955 // string == 0, for language IDs 956 len = sizeof (struct usb_interface_descriptor); 957 // may succeed when > 4 languages 958 expected = EREMOTEIO; // or EPIPE, if no strings 959 break; 960 case 13: // short read, resembling case 10 961 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 962 // last data packet "should" be DATA1, not DATA0 963 len = 1024 - udev->descriptor.bMaxPacketSize0; 964 expected = -EREMOTEIO; 965 break; 966 case 14: // short read; try to fill the last packet 967 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); 968 // device descriptor size == 18 bytes 969 len = udev->descriptor.bMaxPacketSize0; 970 switch (len) { 971 case 8: len = 24; break; 972 case 16: len = 32; break; 973 } 974 expected = -EREMOTEIO; 975 break; 976 default: 977 err ("bogus number of ctrl queue testcases!"); 978 context.status = -EINVAL; 979 goto cleanup; 980 } 981 req.wLength = cpu_to_le16 (len); 982 urb [i] = u = simple_alloc_urb (udev, pipe, len); 983 if (!u) 984 goto cleanup; 985 986 reqp = usb_buffer_alloc (udev, sizeof *reqp, GFP_KERNEL, 987 &u->setup_dma); 988 if (!reqp) 989 goto cleanup; 990 reqp->setup = req; 991 reqp->number = i % NUM_SUBCASES; 992 reqp->expected = expected; 993 u->setup_packet = (char *) &reqp->setup; 994 u->transfer_flags |= URB_NO_SETUP_DMA_MAP; 995 996 u->context = &context; 997 u->complete = ctrl_complete; 998 } 999 1000 /* queue the urbs */ 1001 context.urb = urb; 1002 spin_lock_irq (&context.lock); 1003 for (i = 0; i < param->sglen; i++) { 1004 context.status = usb_submit_urb (urb [i], GFP_ATOMIC); 1005 if (context.status != 0) { 1006 dbg ("can't submit urb[%d], status %d", 1007 i, context.status); 1008 context.count = context.pending; 1009 break; 1010 } 1011 context.pending++; 1012 } 1013 spin_unlock_irq (&context.lock); 1014 1015 /* FIXME set timer and time out; provide a disconnect hook */ 1016 1017 /* wait for the last one to complete */ 1018 if (context.pending > 0) 1019 wait_for_completion (&context.complete); 1020 1021 cleanup: 1022 for (i = 0; i < param->sglen; i++) { 1023 if (!urb [i]) 1024 continue; 1025 urb [i]->dev = udev; 1026 if (urb [i]->setup_packet) 1027 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest), 1028 urb [i]->setup_packet, 1029 urb [i]->setup_dma); 1030 simple_free_urb (urb [i]); 1031 } 1032 kfree (urb); 1033 return context.status; 1034 } 1035 #undef NUM_SUBCASES 1036 1037 1038 /*-------------------------------------------------------------------------*/ 1039 1040 static void unlink1_callback (struct urb *urb) 1041 { 1042 int status = urb->status; 1043 1044 // we "know" -EPIPE (stall) never happens 1045 if (!status) 1046 status = usb_submit_urb (urb, GFP_ATOMIC); 1047 if (status) { 1048 urb->status = status; 1049 complete(urb->context); 1050 } 1051 } 1052 1053 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) 1054 { 1055 struct urb *urb; 1056 struct completion completion; 1057 int retval = 0; 1058 1059 init_completion (&completion); 1060 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); 1061 if (!urb) 1062 return -ENOMEM; 1063 urb->context = &completion; 1064 urb->complete = unlink1_callback; 1065 1066 /* keep the endpoint busy. there are lots of hc/hcd-internal 1067 * states, and testing should get to all of them over time. 1068 * 1069 * FIXME want additional tests for when endpoint is STALLing 1070 * due to errors, or is just NAKing requests. 1071 */ 1072 if ((retval = usb_submit_urb (urb, GFP_KERNEL)) != 0) { 1073 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval); 1074 return retval; 1075 } 1076 1077 /* unlinking that should always work. variable delay tests more 1078 * hcd states and code paths, even with little other system load. 1079 */ 1080 msleep (jiffies % (2 * INTERRUPT_RATE)); 1081 if (async) { 1082 retry: 1083 retval = usb_unlink_urb (urb); 1084 if (retval == -EBUSY || retval == -EIDRM) { 1085 /* we can't unlink urbs while they're completing. 1086 * or if they've completed, and we haven't resubmitted. 1087 * "normal" drivers would prevent resubmission, but 1088 * since we're testing unlink paths, we can't. 1089 */ 1090 dev_dbg (&dev->intf->dev, "unlink retry\n"); 1091 goto retry; 1092 } 1093 } else 1094 usb_kill_urb (urb); 1095 if (!(retval == 0 || retval == -EINPROGRESS)) { 1096 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval); 1097 return retval; 1098 } 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 (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 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval); 1133 return retval; 1134 } 1135 if (status != 0) { 1136 dbg ("ep %02x bogus status: %04x != 0", ep, status); 1137 return -EINVAL; 1138 } 1139 retval = simple_io (urb, 1, 0, 0, __func__); 1140 if (retval != 0) 1141 return -EINVAL; 1142 return 0; 1143 } 1144 1145 static int verify_halted (int ep, struct urb *urb) 1146 { 1147 int retval; 1148 u16 status; 1149 1150 /* should look and act halted */ 1151 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1152 if (retval < 0) { 1153 dbg ("ep %02x couldn't get halt status, %d", ep, retval); 1154 return retval; 1155 } 1156 le16_to_cpus(&status); 1157 if (status != 1) { 1158 dbg ("ep %02x bogus status: %04x != 1", ep, status); 1159 return -EINVAL; 1160 } 1161 retval = simple_io (urb, 1, 0, -EPIPE, __func__); 1162 if (retval != -EPIPE) 1163 return -EINVAL; 1164 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted"); 1165 if (retval != -EPIPE) 1166 return -EINVAL; 1167 return 0; 1168 } 1169 1170 static int test_halt (int ep, struct urb *urb) 1171 { 1172 int retval; 1173 1174 /* shouldn't look or act halted now */ 1175 retval = verify_not_halted (ep, urb); 1176 if (retval < 0) 1177 return retval; 1178 1179 /* set halt (protocol test only), verify it worked */ 1180 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), 1181 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, 1182 USB_ENDPOINT_HALT, ep, 1183 NULL, 0, USB_CTRL_SET_TIMEOUT); 1184 if (retval < 0) { 1185 dbg ("ep %02x couldn't set halt, %d", ep, retval); 1186 return retval; 1187 } 1188 retval = verify_halted (ep, urb); 1189 if (retval < 0) 1190 return retval; 1191 1192 /* clear halt (tests API + protocol), verify it worked */ 1193 retval = usb_clear_halt (urb->dev, urb->pipe); 1194 if (retval < 0) { 1195 dbg ("ep %02x couldn't clear halt, %d", ep, retval); 1196 return retval; 1197 } 1198 retval = verify_not_halted (ep, urb); 1199 if (retval < 0) 1200 return retval; 1201 1202 /* NOTE: could also verify SET_INTERFACE clear halts ... */ 1203 1204 return 0; 1205 } 1206 1207 static int halt_simple (struct usbtest_dev *dev) 1208 { 1209 int ep; 1210 int retval = 0; 1211 struct urb *urb; 1212 1213 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); 1214 if (urb == NULL) 1215 return -ENOMEM; 1216 1217 if (dev->in_pipe) { 1218 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; 1219 urb->pipe = dev->in_pipe; 1220 retval = test_halt (ep, urb); 1221 if (retval < 0) 1222 goto done; 1223 } 1224 1225 if (dev->out_pipe) { 1226 ep = usb_pipeendpoint (dev->out_pipe); 1227 urb->pipe = dev->out_pipe; 1228 retval = test_halt (ep, urb); 1229 } 1230 done: 1231 simple_free_urb (urb); 1232 return retval; 1233 } 1234 1235 /*-------------------------------------------------------------------------*/ 1236 1237 /* Control OUT tests use the vendor control requests from Intel's 1238 * USB 2.0 compliance test device: write a buffer, read it back. 1239 * 1240 * Intel's spec only _requires_ that it work for one packet, which 1241 * is pretty weak. Some HCDs place limits here; most devices will 1242 * need to be able to handle more than one OUT data packet. We'll 1243 * try whatever we're told to try. 1244 */ 1245 static int ctrl_out (struct usbtest_dev *dev, 1246 unsigned count, unsigned length, unsigned vary) 1247 { 1248 unsigned i, j, len; 1249 int retval; 1250 u8 *buf; 1251 char *what = "?"; 1252 struct usb_device *udev; 1253 1254 if (length < 1 || length > 0xffff || vary >= length) 1255 return -EINVAL; 1256 1257 buf = kmalloc(length, GFP_KERNEL); 1258 if (!buf) 1259 return -ENOMEM; 1260 1261 udev = testdev_to_usbdev (dev); 1262 len = length; 1263 retval = 0; 1264 1265 /* NOTE: hardware might well act differently if we pushed it 1266 * with lots back-to-back queued requests. 1267 */ 1268 for (i = 0; i < count; i++) { 1269 /* write patterned data */ 1270 for (j = 0; j < len; j++) 1271 buf [j] = i + j; 1272 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), 1273 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, 1274 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); 1275 if (retval != len) { 1276 what = "write"; 1277 if (retval >= 0) { 1278 INFO(dev, "ctrl_out, wlen %d (expected %d)\n", 1279 retval, len); 1280 retval = -EBADMSG; 1281 } 1282 break; 1283 } 1284 1285 /* read it back -- assuming nothing intervened!! */ 1286 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), 1287 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, 1288 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); 1289 if (retval != len) { 1290 what = "read"; 1291 if (retval >= 0) { 1292 INFO(dev, "ctrl_out, rlen %d (expected %d)\n", 1293 retval, len); 1294 retval = -EBADMSG; 1295 } 1296 break; 1297 } 1298 1299 /* fail if we can't verify */ 1300 for (j = 0; j < len; j++) { 1301 if (buf [j] != (u8) (i + j)) { 1302 INFO (dev, "ctrl_out, byte %d is %d not %d\n", 1303 j, buf [j], (u8) i + j); 1304 retval = -EBADMSG; 1305 break; 1306 } 1307 } 1308 if (retval < 0) { 1309 what = "verify"; 1310 break; 1311 } 1312 1313 len += vary; 1314 1315 /* [real world] the "zero bytes IN" case isn't really used. 1316 * hardware can easily trip up in this weird case, since its 1317 * status stage is IN, not OUT like other ep0in transfers. 1318 */ 1319 if (len > length) 1320 len = realworld ? 1 : 0; 1321 } 1322 1323 if (retval < 0) 1324 INFO (dev, "ctrl_out %s failed, code %d, count %d\n", 1325 what, retval, i); 1326 1327 kfree (buf); 1328 return retval; 1329 } 1330 1331 /*-------------------------------------------------------------------------*/ 1332 1333 /* ISO tests ... mimics common usage 1334 * - buffer length is split into N packets (mostly maxpacket sized) 1335 * - multi-buffers according to sglen 1336 */ 1337 1338 struct iso_context { 1339 unsigned count; 1340 unsigned pending; 1341 spinlock_t lock; 1342 struct completion done; 1343 int submit_error; 1344 unsigned long errors; 1345 unsigned long packet_count; 1346 struct usbtest_dev *dev; 1347 }; 1348 1349 static void iso_callback (struct urb *urb) 1350 { 1351 struct iso_context *ctx = urb->context; 1352 1353 spin_lock(&ctx->lock); 1354 ctx->count--; 1355 1356 ctx->packet_count += urb->number_of_packets; 1357 if (urb->error_count > 0) 1358 ctx->errors += urb->error_count; 1359 else if (urb->status != 0) 1360 ctx->errors += urb->number_of_packets; 1361 1362 if (urb->status == 0 && ctx->count > (ctx->pending - 1) 1363 && !ctx->submit_error) { 1364 int status = usb_submit_urb (urb, GFP_ATOMIC); 1365 switch (status) { 1366 case 0: 1367 goto done; 1368 default: 1369 dev_dbg (&ctx->dev->intf->dev, 1370 "iso resubmit err %d\n", 1371 status); 1372 /* FALLTHROUGH */ 1373 case -ENODEV: /* disconnected */ 1374 case -ESHUTDOWN: /* endpoint disabled */ 1375 ctx->submit_error = 1; 1376 break; 1377 } 1378 } 1379 simple_free_urb (urb); 1380 1381 ctx->pending--; 1382 if (ctx->pending == 0) { 1383 if (ctx->errors) 1384 dev_dbg (&ctx->dev->intf->dev, 1385 "iso test, %lu errors out of %lu\n", 1386 ctx->errors, ctx->packet_count); 1387 complete (&ctx->done); 1388 } 1389 done: 1390 spin_unlock(&ctx->lock); 1391 } 1392 1393 static struct urb *iso_alloc_urb ( 1394 struct usb_device *udev, 1395 int pipe, 1396 struct usb_endpoint_descriptor *desc, 1397 long bytes 1398 ) 1399 { 1400 struct urb *urb; 1401 unsigned i, maxp, packets; 1402 1403 if (bytes < 0 || !desc) 1404 return NULL; 1405 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); 1406 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); 1407 packets = DIV_ROUND_UP(bytes, maxp); 1408 1409 urb = usb_alloc_urb (packets, GFP_KERNEL); 1410 if (!urb) 1411 return urb; 1412 urb->dev = udev; 1413 urb->pipe = pipe; 1414 1415 urb->number_of_packets = packets; 1416 urb->transfer_buffer_length = bytes; 1417 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL, 1418 &urb->transfer_dma); 1419 if (!urb->transfer_buffer) { 1420 usb_free_urb (urb); 1421 return NULL; 1422 } 1423 memset (urb->transfer_buffer, 0, bytes); 1424 for (i = 0; i < packets; i++) { 1425 /* here, only the last packet will be short */ 1426 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); 1427 bytes -= urb->iso_frame_desc[i].length; 1428 1429 urb->iso_frame_desc[i].offset = maxp * i; 1430 } 1431 1432 urb->complete = iso_callback; 1433 // urb->context = SET BY CALLER 1434 urb->interval = 1 << (desc->bInterval - 1); 1435 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 1436 return urb; 1437 } 1438 1439 static int 1440 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, 1441 int pipe, struct usb_endpoint_descriptor *desc) 1442 { 1443 struct iso_context context; 1444 struct usb_device *udev; 1445 unsigned i; 1446 unsigned long packets = 0; 1447 int status = 0; 1448 struct urb *urbs[10]; /* FIXME no limit */ 1449 1450 if (param->sglen > 10) 1451 return -EDOM; 1452 1453 memset(&context, 0, sizeof context); 1454 context.count = param->iterations * param->sglen; 1455 context.dev = dev; 1456 init_completion (&context.done); 1457 spin_lock_init (&context.lock); 1458 1459 memset (urbs, 0, sizeof urbs); 1460 udev = testdev_to_usbdev (dev); 1461 dev_dbg (&dev->intf->dev, 1462 "... iso period %d %sframes, wMaxPacket %04x\n", 1463 1 << (desc->bInterval - 1), 1464 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1465 le16_to_cpu(desc->wMaxPacketSize)); 1466 1467 for (i = 0; i < param->sglen; i++) { 1468 urbs [i] = iso_alloc_urb (udev, pipe, desc, 1469 param->length); 1470 if (!urbs [i]) { 1471 status = -ENOMEM; 1472 goto fail; 1473 } 1474 packets += urbs[i]->number_of_packets; 1475 urbs [i]->context = &context; 1476 } 1477 packets *= param->iterations; 1478 dev_dbg (&dev->intf->dev, 1479 "... total %lu msec (%lu packets)\n", 1480 (packets * (1 << (desc->bInterval - 1))) 1481 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1482 packets); 1483 1484 spin_lock_irq (&context.lock); 1485 for (i = 0; i < param->sglen; i++) { 1486 ++context.pending; 1487 status = usb_submit_urb (urbs [i], GFP_ATOMIC); 1488 if (status < 0) { 1489 ERROR (dev, "submit iso[%d], error %d\n", i, status); 1490 if (i == 0) { 1491 spin_unlock_irq (&context.lock); 1492 goto fail; 1493 } 1494 1495 simple_free_urb (urbs [i]); 1496 context.pending--; 1497 context.submit_error = 1; 1498 break; 1499 } 1500 } 1501 spin_unlock_irq (&context.lock); 1502 1503 wait_for_completion (&context.done); 1504 1505 /* 1506 * Isochronous transfers are expected to fail sometimes. As an 1507 * arbitrary limit, we will report an error if any submissions 1508 * fail or if the transfer failure rate is > 10%. 1509 */ 1510 if (status != 0) 1511 ; 1512 else if (context.submit_error) 1513 status = -EACCES; 1514 else if (context.errors > context.packet_count / 10) 1515 status = -EIO; 1516 return status; 1517 1518 fail: 1519 for (i = 0; i < param->sglen; i++) { 1520 if (urbs [i]) 1521 simple_free_urb (urbs [i]); 1522 } 1523 return status; 1524 } 1525 1526 /*-------------------------------------------------------------------------*/ 1527 1528 /* We only have this one interface to user space, through usbfs. 1529 * User mode code can scan usbfs to find N different devices (maybe on 1530 * different busses) to use when testing, and allocate one thread per 1531 * test. So discovery is simplified, and we have no device naming issues. 1532 * 1533 * Don't use these only as stress/load tests. Use them along with with 1534 * other USB bus activity: plugging, unplugging, mousing, mp3 playback, 1535 * video capture, and so on. Run different tests at different times, in 1536 * different sequences. Nothing here should interact with other devices, 1537 * except indirectly by consuming USB bandwidth and CPU resources for test 1538 * threads and request completion. But the only way to know that for sure 1539 * is to test when HC queues are in use by many devices. 1540 */ 1541 1542 static int 1543 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) 1544 { 1545 struct usbtest_dev *dev = usb_get_intfdata (intf); 1546 struct usb_device *udev = testdev_to_usbdev (dev); 1547 struct usbtest_param *param = buf; 1548 int retval = -EOPNOTSUPP; 1549 struct urb *urb; 1550 struct scatterlist *sg; 1551 struct usb_sg_request req; 1552 struct timeval start; 1553 unsigned i; 1554 1555 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. 1556 1557 if (code != USBTEST_REQUEST) 1558 return -EOPNOTSUPP; 1559 1560 if (param->iterations <= 0 || param->length < 0 1561 || param->sglen < 0 || param->vary < 0) 1562 return -EINVAL; 1563 1564 if (mutex_lock_interruptible(&dev->lock)) 1565 return -ERESTARTSYS; 1566 1567 /* FIXME: What if a system sleep starts while a test is running? */ 1568 if (!intf->is_active) { 1569 mutex_unlock(&dev->lock); 1570 return -EHOSTUNREACH; 1571 } 1572 1573 /* some devices, like ez-usb default devices, need a non-default 1574 * altsetting to have any active endpoints. some tests change 1575 * altsettings; force a default so most tests don't need to check. 1576 */ 1577 if (dev->info->alt >= 0) { 1578 int res; 1579 1580 if (intf->altsetting->desc.bInterfaceNumber) { 1581 mutex_unlock(&dev->lock); 1582 return -ENODEV; 1583 } 1584 res = set_altsetting (dev, dev->info->alt); 1585 if (res) { 1586 dev_err (&intf->dev, 1587 "set altsetting to %d failed, %d\n", 1588 dev->info->alt, res); 1589 mutex_unlock(&dev->lock); 1590 return res; 1591 } 1592 } 1593 1594 /* 1595 * Just a bunch of test cases that every HCD is expected to handle. 1596 * 1597 * Some may need specific firmware, though it'd be good to have 1598 * one firmware image to handle all the test cases. 1599 * 1600 * FIXME add more tests! cancel requests, verify the data, control 1601 * queueing, concurrent read+write threads, and so on. 1602 */ 1603 do_gettimeofday (&start); 1604 switch (param->test_num) { 1605 1606 case 0: 1607 dev_dbg (&intf->dev, "TEST 0: NOP\n"); 1608 retval = 0; 1609 break; 1610 1611 /* Simple non-queued bulk I/O tests */ 1612 case 1: 1613 if (dev->out_pipe == 0) 1614 break; 1615 dev_dbg (&intf->dev, 1616 "TEST 1: write %d bytes %u times\n", 1617 param->length, param->iterations); 1618 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1619 if (!urb) { 1620 retval = -ENOMEM; 1621 break; 1622 } 1623 // FIRMWARE: bulk sink (maybe accepts short writes) 1624 retval = simple_io (urb, param->iterations, 0, 0, "test1"); 1625 simple_free_urb (urb); 1626 break; 1627 case 2: 1628 if (dev->in_pipe == 0) 1629 break; 1630 dev_dbg (&intf->dev, 1631 "TEST 2: read %d bytes %u times\n", 1632 param->length, param->iterations); 1633 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1634 if (!urb) { 1635 retval = -ENOMEM; 1636 break; 1637 } 1638 // FIRMWARE: bulk source (maybe generates short writes) 1639 retval = simple_io (urb, param->iterations, 0, 0, "test2"); 1640 simple_free_urb (urb); 1641 break; 1642 case 3: 1643 if (dev->out_pipe == 0 || param->vary == 0) 1644 break; 1645 dev_dbg (&intf->dev, 1646 "TEST 3: write/%d 0..%d bytes %u times\n", 1647 param->vary, param->length, param->iterations); 1648 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1649 if (!urb) { 1650 retval = -ENOMEM; 1651 break; 1652 } 1653 // FIRMWARE: bulk sink (maybe accepts short writes) 1654 retval = simple_io (urb, param->iterations, param->vary, 1655 0, "test3"); 1656 simple_free_urb (urb); 1657 break; 1658 case 4: 1659 if (dev->in_pipe == 0 || param->vary == 0) 1660 break; 1661 dev_dbg (&intf->dev, 1662 "TEST 4: read/%d 0..%d bytes %u times\n", 1663 param->vary, param->length, param->iterations); 1664 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1665 if (!urb) { 1666 retval = -ENOMEM; 1667 break; 1668 } 1669 // FIRMWARE: bulk source (maybe generates short writes) 1670 retval = simple_io (urb, param->iterations, param->vary, 1671 0, "test4"); 1672 simple_free_urb (urb); 1673 break; 1674 1675 /* Queued bulk I/O tests */ 1676 case 5: 1677 if (dev->out_pipe == 0 || param->sglen == 0) 1678 break; 1679 dev_dbg (&intf->dev, 1680 "TEST 5: write %d sglists %d entries of %d bytes\n", 1681 param->iterations, 1682 param->sglen, param->length); 1683 sg = alloc_sglist (param->sglen, param->length, 0); 1684 if (!sg) { 1685 retval = -ENOMEM; 1686 break; 1687 } 1688 // FIRMWARE: bulk sink (maybe accepts short writes) 1689 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1690 &req, sg, param->sglen); 1691 free_sglist (sg, param->sglen); 1692 break; 1693 1694 case 6: 1695 if (dev->in_pipe == 0 || param->sglen == 0) 1696 break; 1697 dev_dbg (&intf->dev, 1698 "TEST 6: read %d sglists %d entries of %d bytes\n", 1699 param->iterations, 1700 param->sglen, param->length); 1701 sg = alloc_sglist (param->sglen, param->length, 0); 1702 if (!sg) { 1703 retval = -ENOMEM; 1704 break; 1705 } 1706 // FIRMWARE: bulk source (maybe generates short writes) 1707 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1708 &req, sg, param->sglen); 1709 free_sglist (sg, param->sglen); 1710 break; 1711 case 7: 1712 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 1713 break; 1714 dev_dbg (&intf->dev, 1715 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 1716 param->vary, param->iterations, 1717 param->sglen, param->length); 1718 sg = alloc_sglist (param->sglen, param->length, param->vary); 1719 if (!sg) { 1720 retval = -ENOMEM; 1721 break; 1722 } 1723 // FIRMWARE: bulk sink (maybe accepts short writes) 1724 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1725 &req, sg, param->sglen); 1726 free_sglist (sg, param->sglen); 1727 break; 1728 case 8: 1729 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 1730 break; 1731 dev_dbg (&intf->dev, 1732 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 1733 param->vary, param->iterations, 1734 param->sglen, param->length); 1735 sg = alloc_sglist (param->sglen, param->length, param->vary); 1736 if (!sg) { 1737 retval = -ENOMEM; 1738 break; 1739 } 1740 // FIRMWARE: bulk source (maybe generates short writes) 1741 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1742 &req, sg, param->sglen); 1743 free_sglist (sg, param->sglen); 1744 break; 1745 1746 /* non-queued sanity tests for control (chapter 9 subset) */ 1747 case 9: 1748 retval = 0; 1749 dev_dbg (&intf->dev, 1750 "TEST 9: ch9 (subset) control tests, %d times\n", 1751 param->iterations); 1752 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1753 retval = ch9_postconfig (dev); 1754 if (retval) 1755 dbg ("ch9 subset failed, iterations left %d", i); 1756 break; 1757 1758 /* queued control messaging */ 1759 case 10: 1760 if (param->sglen == 0) 1761 break; 1762 retval = 0; 1763 dev_dbg (&intf->dev, 1764 "TEST 10: queue %d control calls, %d times\n", 1765 param->sglen, 1766 param->iterations); 1767 retval = test_ctrl_queue (dev, param); 1768 break; 1769 1770 /* simple non-queued unlinks (ring with one urb) */ 1771 case 11: 1772 if (dev->in_pipe == 0 || !param->length) 1773 break; 1774 retval = 0; 1775 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n", 1776 param->iterations, param->length); 1777 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1778 retval = unlink_simple (dev, dev->in_pipe, 1779 param->length); 1780 if (retval) 1781 dev_dbg (&intf->dev, "unlink reads failed %d, " 1782 "iterations left %d\n", retval, i); 1783 break; 1784 case 12: 1785 if (dev->out_pipe == 0 || !param->length) 1786 break; 1787 retval = 0; 1788 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n", 1789 param->iterations, param->length); 1790 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1791 retval = unlink_simple (dev, dev->out_pipe, 1792 param->length); 1793 if (retval) 1794 dev_dbg (&intf->dev, "unlink writes failed %d, " 1795 "iterations left %d\n", retval, i); 1796 break; 1797 1798 /* ep halt tests */ 1799 case 13: 1800 if (dev->out_pipe == 0 && dev->in_pipe == 0) 1801 break; 1802 retval = 0; 1803 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n", 1804 param->iterations); 1805 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1806 retval = halt_simple (dev); 1807 1808 if (retval) 1809 DBG (dev, "halts failed, iterations left %d\n", i); 1810 break; 1811 1812 /* control write tests */ 1813 case 14: 1814 if (!dev->info->ctrl_out) 1815 break; 1816 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 1817 param->iterations, 1818 realworld ? 1 : 0, param->length, 1819 param->vary); 1820 retval = ctrl_out (dev, param->iterations, 1821 param->length, param->vary); 1822 break; 1823 1824 /* iso write tests */ 1825 case 15: 1826 if (dev->out_iso_pipe == 0 || param->sglen == 0) 1827 break; 1828 dev_dbg (&intf->dev, 1829 "TEST 15: write %d iso, %d entries of %d bytes\n", 1830 param->iterations, 1831 param->sglen, param->length); 1832 // FIRMWARE: iso sink 1833 retval = test_iso_queue (dev, param, 1834 dev->out_iso_pipe, dev->iso_out); 1835 break; 1836 1837 /* iso read tests */ 1838 case 16: 1839 if (dev->in_iso_pipe == 0 || param->sglen == 0) 1840 break; 1841 dev_dbg (&intf->dev, 1842 "TEST 16: read %d iso, %d entries of %d bytes\n", 1843 param->iterations, 1844 param->sglen, param->length); 1845 // FIRMWARE: iso source 1846 retval = test_iso_queue (dev, param, 1847 dev->in_iso_pipe, dev->iso_in); 1848 break; 1849 1850 // FIXME unlink from queue (ring with N urbs) 1851 1852 // FIXME scatterlist cancel (needs helper thread) 1853 1854 } 1855 do_gettimeofday (¶m->duration); 1856 param->duration.tv_sec -= start.tv_sec; 1857 param->duration.tv_usec -= start.tv_usec; 1858 if (param->duration.tv_usec < 0) { 1859 param->duration.tv_usec += 1000 * 1000; 1860 param->duration.tv_sec -= 1; 1861 } 1862 mutex_unlock(&dev->lock); 1863 return retval; 1864 } 1865 1866 /*-------------------------------------------------------------------------*/ 1867 1868 static unsigned force_interrupt = 0; 1869 module_param (force_interrupt, uint, 0); 1870 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); 1871 1872 #ifdef GENERIC 1873 static unsigned short vendor; 1874 module_param(vendor, ushort, 0); 1875 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); 1876 1877 static unsigned short product; 1878 module_param(product, ushort, 0); 1879 MODULE_PARM_DESC (product, "product code (from vendor)"); 1880 #endif 1881 1882 static int 1883 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) 1884 { 1885 struct usb_device *udev; 1886 struct usbtest_dev *dev; 1887 struct usbtest_info *info; 1888 char *rtest, *wtest; 1889 char *irtest, *iwtest; 1890 1891 udev = interface_to_usbdev (intf); 1892 1893 #ifdef GENERIC 1894 /* specify devices by module parameters? */ 1895 if (id->match_flags == 0) { 1896 /* vendor match required, product match optional */ 1897 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) 1898 return -ENODEV; 1899 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 1900 return -ENODEV; 1901 dbg ("matched module params, vend=0x%04x prod=0x%04x", 1902 le16_to_cpu(udev->descriptor.idVendor), 1903 le16_to_cpu(udev->descriptor.idProduct)); 1904 } 1905 #endif 1906 1907 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 1908 if (!dev) 1909 return -ENOMEM; 1910 info = (struct usbtest_info *) id->driver_info; 1911 dev->info = info; 1912 mutex_init(&dev->lock); 1913 1914 dev->intf = intf; 1915 1916 /* cacheline-aligned scratch for i/o */ 1917 if ((dev->buf = kmalloc (TBUF_SIZE, GFP_KERNEL)) == NULL) { 1918 kfree (dev); 1919 return -ENOMEM; 1920 } 1921 1922 /* NOTE this doesn't yet test the handful of difference that are 1923 * visible with high speed interrupts: bigger maxpacket (1K) and 1924 * "high bandwidth" modes (up to 3 packets/uframe). 1925 */ 1926 rtest = wtest = ""; 1927 irtest = iwtest = ""; 1928 if (force_interrupt || udev->speed == USB_SPEED_LOW) { 1929 if (info->ep_in) { 1930 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); 1931 rtest = " intr-in"; 1932 } 1933 if (info->ep_out) { 1934 dev->out_pipe = usb_sndintpipe (udev, info->ep_out); 1935 wtest = " intr-out"; 1936 } 1937 } else { 1938 if (info->autoconf) { 1939 int status; 1940 1941 status = get_endpoints (dev, intf); 1942 if (status < 0) { 1943 dbg ("couldn't get endpoints, %d\n", status); 1944 return status; 1945 } 1946 /* may find bulk or ISO pipes */ 1947 } else { 1948 if (info->ep_in) 1949 dev->in_pipe = usb_rcvbulkpipe (udev, 1950 info->ep_in); 1951 if (info->ep_out) 1952 dev->out_pipe = usb_sndbulkpipe (udev, 1953 info->ep_out); 1954 } 1955 if (dev->in_pipe) 1956 rtest = " bulk-in"; 1957 if (dev->out_pipe) 1958 wtest = " bulk-out"; 1959 if (dev->in_iso_pipe) 1960 irtest = " iso-in"; 1961 if (dev->out_iso_pipe) 1962 iwtest = " iso-out"; 1963 } 1964 1965 usb_set_intfdata (intf, dev); 1966 dev_info (&intf->dev, "%s\n", info->name); 1967 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", 1968 ({ char *tmp; 1969 switch (udev->speed) { 1970 case USB_SPEED_LOW: tmp = "low"; break; 1971 case USB_SPEED_FULL: tmp = "full"; break; 1972 case USB_SPEED_HIGH: tmp = "high"; break; 1973 default: tmp = "unknown"; break; 1974 }; tmp; }), 1975 info->ctrl_out ? " in/out" : "", 1976 rtest, wtest, 1977 irtest, iwtest, 1978 info->alt >= 0 ? " (+alt)" : ""); 1979 return 0; 1980 } 1981 1982 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) 1983 { 1984 return 0; 1985 } 1986 1987 static int usbtest_resume (struct usb_interface *intf) 1988 { 1989 return 0; 1990 } 1991 1992 1993 static void usbtest_disconnect (struct usb_interface *intf) 1994 { 1995 struct usbtest_dev *dev = usb_get_intfdata (intf); 1996 1997 usb_set_intfdata (intf, NULL); 1998 dev_dbg (&intf->dev, "disconnect\n"); 1999 kfree (dev); 2000 } 2001 2002 /* Basic testing only needs a device that can source or sink bulk traffic. 2003 * Any device can test control transfers (default with GENERIC binding). 2004 * 2005 * Several entries work with the default EP0 implementation that's built 2006 * into EZ-USB chips. There's a default vendor ID which can be overridden 2007 * by (very) small config EEPROMS, but otherwise all these devices act 2008 * identically until firmware is loaded: only EP0 works. It turns out 2009 * to be easy to make other endpoints work, without modifying that EP0 2010 * behavior. For now, we expect that kind of firmware. 2011 */ 2012 2013 /* an21xx or fx versions of ez-usb */ 2014 static struct usbtest_info ez1_info = { 2015 .name = "EZ-USB device", 2016 .ep_in = 2, 2017 .ep_out = 2, 2018 .alt = 1, 2019 }; 2020 2021 /* fx2 version of ez-usb */ 2022 static struct usbtest_info ez2_info = { 2023 .name = "FX2 device", 2024 .ep_in = 6, 2025 .ep_out = 2, 2026 .alt = 1, 2027 }; 2028 2029 /* ezusb family device with dedicated usb test firmware, 2030 */ 2031 static struct usbtest_info fw_info = { 2032 .name = "usb test device", 2033 .ep_in = 2, 2034 .ep_out = 2, 2035 .alt = 1, 2036 .autoconf = 1, // iso and ctrl_out need autoconf 2037 .ctrl_out = 1, 2038 .iso = 1, // iso_ep's are #8 in/out 2039 }; 2040 2041 /* peripheral running Linux and 'zero.c' test firmware, or 2042 * its user-mode cousin. different versions of this use 2043 * different hardware with the same vendor/product codes. 2044 * host side MUST rely on the endpoint descriptors. 2045 */ 2046 static struct usbtest_info gz_info = { 2047 .name = "Linux gadget zero", 2048 .autoconf = 1, 2049 .ctrl_out = 1, 2050 .alt = 0, 2051 }; 2052 2053 static struct usbtest_info um_info = { 2054 .name = "Linux user mode test driver", 2055 .autoconf = 1, 2056 .alt = -1, 2057 }; 2058 2059 static struct usbtest_info um2_info = { 2060 .name = "Linux user mode ISO test driver", 2061 .autoconf = 1, 2062 .iso = 1, 2063 .alt = -1, 2064 }; 2065 2066 #ifdef IBOT2 2067 /* this is a nice source of high speed bulk data; 2068 * uses an FX2, with firmware provided in the device 2069 */ 2070 static struct usbtest_info ibot2_info = { 2071 .name = "iBOT2 webcam", 2072 .ep_in = 2, 2073 .alt = -1, 2074 }; 2075 #endif 2076 2077 #ifdef GENERIC 2078 /* we can use any device to test control traffic */ 2079 static struct usbtest_info generic_info = { 2080 .name = "Generic USB device", 2081 .alt = -1, 2082 }; 2083 #endif 2084 2085 // FIXME remove this 2086 static struct usbtest_info hact_info = { 2087 .name = "FX2/hact", 2088 //.ep_in = 6, 2089 .ep_out = 2, 2090 .alt = -1, 2091 }; 2092 2093 2094 static struct usb_device_id id_table [] = { 2095 2096 { USB_DEVICE (0x0547, 0x1002), 2097 .driver_info = (unsigned long) &hact_info, 2098 }, 2099 2100 /*-------------------------------------------------------------*/ 2101 2102 /* EZ-USB devices which download firmware to replace (or in our 2103 * case augment) the default device implementation. 2104 */ 2105 2106 /* generic EZ-USB FX controller */ 2107 { USB_DEVICE (0x0547, 0x2235), 2108 .driver_info = (unsigned long) &ez1_info, 2109 }, 2110 2111 /* CY3671 development board with EZ-USB FX */ 2112 { USB_DEVICE (0x0547, 0x0080), 2113 .driver_info = (unsigned long) &ez1_info, 2114 }, 2115 2116 /* generic EZ-USB FX2 controller (or development board) */ 2117 { USB_DEVICE (0x04b4, 0x8613), 2118 .driver_info = (unsigned long) &ez2_info, 2119 }, 2120 2121 /* re-enumerated usb test device firmware */ 2122 { USB_DEVICE (0xfff0, 0xfff0), 2123 .driver_info = (unsigned long) &fw_info, 2124 }, 2125 2126 /* "Gadget Zero" firmware runs under Linux */ 2127 { USB_DEVICE (0x0525, 0xa4a0), 2128 .driver_info = (unsigned long) &gz_info, 2129 }, 2130 2131 /* so does a user-mode variant */ 2132 { USB_DEVICE (0x0525, 0xa4a4), 2133 .driver_info = (unsigned long) &um_info, 2134 }, 2135 2136 /* ... and a user-mode variant that talks iso */ 2137 { USB_DEVICE (0x0525, 0xa4a3), 2138 .driver_info = (unsigned long) &um2_info, 2139 }, 2140 2141 #ifdef KEYSPAN_19Qi 2142 /* Keyspan 19qi uses an21xx (original EZ-USB) */ 2143 // this does not coexist with the real Keyspan 19qi driver! 2144 { USB_DEVICE (0x06cd, 0x010b), 2145 .driver_info = (unsigned long) &ez1_info, 2146 }, 2147 #endif 2148 2149 /*-------------------------------------------------------------*/ 2150 2151 #ifdef IBOT2 2152 /* iBOT2 makes a nice source of high speed bulk-in data */ 2153 // this does not coexist with a real iBOT2 driver! 2154 { USB_DEVICE (0x0b62, 0x0059), 2155 .driver_info = (unsigned long) &ibot2_info, 2156 }, 2157 #endif 2158 2159 /*-------------------------------------------------------------*/ 2160 2161 #ifdef GENERIC 2162 /* module params can specify devices to use for control tests */ 2163 { .driver_info = (unsigned long) &generic_info, }, 2164 #endif 2165 2166 /*-------------------------------------------------------------*/ 2167 2168 { } 2169 }; 2170 MODULE_DEVICE_TABLE (usb, id_table); 2171 2172 static struct usb_driver usbtest_driver = { 2173 .name = "usbtest", 2174 .id_table = id_table, 2175 .probe = usbtest_probe, 2176 .ioctl = usbtest_ioctl, 2177 .disconnect = usbtest_disconnect, 2178 .suspend = usbtest_suspend, 2179 .resume = usbtest_resume, 2180 }; 2181 2182 /*-------------------------------------------------------------------------*/ 2183 2184 static int __init usbtest_init (void) 2185 { 2186 #ifdef GENERIC 2187 if (vendor) 2188 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product); 2189 #endif 2190 return usb_register (&usbtest_driver); 2191 } 2192 module_init (usbtest_init); 2193 2194 static void __exit usbtest_exit (void) 2195 { 2196 usb_deregister (&usbtest_driver); 2197 } 2198 module_exit (usbtest_exit); 2199 2200 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); 2201 MODULE_LICENSE ("GPL"); 2202 2203