1 #include <linux/config.h> 2 #if !defined (DEBUG) && defined (CONFIG_USB_DEBUG) 3 # define DEBUG 4 #endif 5 #include <linux/kernel.h> 6 #include <linux/errno.h> 7 #include <linux/init.h> 8 #include <linux/slab.h> 9 #include <linux/mm.h> 10 #include <linux/module.h> 11 #include <linux/moduleparam.h> 12 #include <asm/scatterlist.h> 13 14 #include <linux/usb.h> 15 16 17 /*-------------------------------------------------------------------------*/ 18 19 // FIXME make these public somewhere; usbdevfs.h? 20 // 21 struct usbtest_param { 22 // inputs 23 unsigned test_num; /* 0..(TEST_CASES-1) */ 24 unsigned iterations; 25 unsigned length; 26 unsigned vary; 27 unsigned sglen; 28 29 // outputs 30 struct timeval duration; 31 }; 32 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param) 33 34 /*-------------------------------------------------------------------------*/ 35 36 #define GENERIC /* let probe() bind using module params */ 37 38 /* Some devices that can be used for testing will have "real" drivers. 39 * Entries for those need to be enabled here by hand, after disabling 40 * that "real" driver. 41 */ 42 //#define IBOT2 /* grab iBOT2 webcams */ 43 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */ 44 45 /*-------------------------------------------------------------------------*/ 46 47 struct usbtest_info { 48 const char *name; 49 u8 ep_in; /* bulk/intr source */ 50 u8 ep_out; /* bulk/intr sink */ 51 unsigned autoconf : 1; 52 unsigned ctrl_out : 1; 53 unsigned iso : 1; /* try iso in/out */ 54 int alt; 55 }; 56 57 /* this is accessed only through usbfs ioctl calls. 58 * one ioctl to issue a test ... one lock per device. 59 * tests create other threads if they need them. 60 * urbs and buffers are allocated dynamically, 61 * and data generated deterministically. 62 */ 63 struct usbtest_dev { 64 struct usb_interface *intf; 65 struct usbtest_info *info; 66 int in_pipe; 67 int out_pipe; 68 int in_iso_pipe; 69 int out_iso_pipe; 70 struct usb_endpoint_descriptor *iso_in, *iso_out; 71 struct semaphore sem; 72 73 #define TBUF_SIZE 256 74 u8 *buf; 75 }; 76 77 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test) 78 { 79 return interface_to_usbdev (test->intf); 80 } 81 82 /* set up all urbs so they can be used with either bulk or interrupt */ 83 #define INTERRUPT_RATE 1 /* msec/transfer */ 84 85 #define xprintk(tdev,level,fmt,args...) \ 86 dev_printk(level , &(tdev)->intf->dev , fmt , ## args) 87 88 #ifdef DEBUG 89 #define DBG(dev,fmt,args...) \ 90 xprintk(dev , KERN_DEBUG , fmt , ## args) 91 #else 92 #define DBG(dev,fmt,args...) \ 93 do { } while (0) 94 #endif /* DEBUG */ 95 96 #ifdef VERBOSE 97 #define VDBG DBG 98 #else 99 #define VDBG(dev,fmt,args...) \ 100 do { } while (0) 101 #endif /* VERBOSE */ 102 103 #define ERROR(dev,fmt,args...) \ 104 xprintk(dev , KERN_ERR , fmt , ## args) 105 #define WARN(dev,fmt,args...) \ 106 xprintk(dev , KERN_WARNING , fmt , ## args) 107 #define INFO(dev,fmt,args...) \ 108 xprintk(dev , KERN_INFO , fmt , ## args) 109 110 /*-------------------------------------------------------------------------*/ 111 112 static int 113 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf) 114 { 115 int tmp; 116 struct usb_host_interface *alt; 117 struct usb_host_endpoint *in, *out; 118 struct usb_host_endpoint *iso_in, *iso_out; 119 struct usb_device *udev; 120 121 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { 122 unsigned ep; 123 124 in = out = NULL; 125 iso_in = iso_out = NULL; 126 alt = intf->altsetting + tmp; 127 128 /* take the first altsetting with in-bulk + out-bulk; 129 * ignore other endpoints and altsetttings. 130 */ 131 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { 132 struct usb_host_endpoint *e; 133 134 e = alt->endpoint + ep; 135 switch (e->desc.bmAttributes) { 136 case USB_ENDPOINT_XFER_BULK: 137 break; 138 case USB_ENDPOINT_XFER_ISOC: 139 if (dev->info->iso) 140 goto try_iso; 141 // FALLTHROUGH 142 default: 143 continue; 144 } 145 if (e->desc.bEndpointAddress & USB_DIR_IN) { 146 if (!in) 147 in = e; 148 } else { 149 if (!out) 150 out = e; 151 } 152 continue; 153 try_iso: 154 if (e->desc.bEndpointAddress & USB_DIR_IN) { 155 if (!iso_in) 156 iso_in = e; 157 } else { 158 if (!iso_out) 159 iso_out = e; 160 } 161 } 162 if ((in && out) || (iso_in && iso_out)) 163 goto found; 164 } 165 return -EINVAL; 166 167 found: 168 udev = testdev_to_usbdev (dev); 169 if (alt->desc.bAlternateSetting != 0) { 170 tmp = usb_set_interface (udev, 171 alt->desc.bInterfaceNumber, 172 alt->desc.bAlternateSetting); 173 if (tmp < 0) 174 return tmp; 175 } 176 177 if (in) { 178 dev->in_pipe = usb_rcvbulkpipe (udev, 179 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 180 dev->out_pipe = usb_sndbulkpipe (udev, 181 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 182 } 183 if (iso_in) { 184 dev->iso_in = &iso_in->desc; 185 dev->in_iso_pipe = usb_rcvisocpipe (udev, 186 iso_in->desc.bEndpointAddress 187 & USB_ENDPOINT_NUMBER_MASK); 188 dev->iso_out = &iso_out->desc; 189 dev->out_iso_pipe = usb_sndisocpipe (udev, 190 iso_out->desc.bEndpointAddress 191 & USB_ENDPOINT_NUMBER_MASK); 192 } 193 return 0; 194 } 195 196 /*-------------------------------------------------------------------------*/ 197 198 /* Support for testing basic non-queued I/O streams. 199 * 200 * These just package urbs as requests that can be easily canceled. 201 * Each urb's data buffer is dynamically allocated; callers can fill 202 * them with non-zero test data (or test for it) when appropriate. 203 */ 204 205 static void simple_callback (struct urb *urb, struct pt_regs *regs) 206 { 207 complete ((struct completion *) urb->context); 208 } 209 210 static struct urb *simple_alloc_urb ( 211 struct usb_device *udev, 212 int pipe, 213 unsigned long bytes 214 ) 215 { 216 struct urb *urb; 217 218 if (bytes < 0) 219 return NULL; 220 urb = usb_alloc_urb (0, SLAB_KERNEL); 221 if (!urb) 222 return urb; 223 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); 224 urb->interval = (udev->speed == USB_SPEED_HIGH) 225 ? (INTERRUPT_RATE << 3) 226 : INTERRUPT_RATE; 227 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 228 if (usb_pipein (pipe)) 229 urb->transfer_flags |= URB_SHORT_NOT_OK; 230 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL, 231 &urb->transfer_dma); 232 if (!urb->transfer_buffer) { 233 usb_free_urb (urb); 234 urb = NULL; 235 } else 236 memset (urb->transfer_buffer, 0, bytes); 237 return urb; 238 } 239 240 static unsigned pattern = 0; 241 module_param (pattern, uint, S_IRUGO); 242 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)"); 243 244 static inline void simple_fill_buf (struct urb *urb) 245 { 246 unsigned i; 247 u8 *buf = urb->transfer_buffer; 248 unsigned len = urb->transfer_buffer_length; 249 250 switch (pattern) { 251 default: 252 // FALLTHROUGH 253 case 0: 254 memset (buf, 0, len); 255 break; 256 case 1: /* mod63 */ 257 for (i = 0; i < len; i++) 258 *buf++ = (u8) (i % 63); 259 break; 260 } 261 } 262 263 static inline int simple_check_buf (struct urb *urb) 264 { 265 unsigned i; 266 u8 expected; 267 u8 *buf = urb->transfer_buffer; 268 unsigned len = urb->actual_length; 269 270 for (i = 0; i < len; i++, buf++) { 271 switch (pattern) { 272 /* all-zeroes has no synchronization issues */ 273 case 0: 274 expected = 0; 275 break; 276 /* mod63 stays in sync with short-terminated transfers, 277 * or otherwise when host and gadget agree on how large 278 * each usb transfer request should be. resync is done 279 * with set_interface or set_config. 280 */ 281 case 1: /* mod63 */ 282 expected = i % 63; 283 break; 284 /* always fail unsupported patterns */ 285 default: 286 expected = !*buf; 287 break; 288 } 289 if (*buf == expected) 290 continue; 291 dbg ("buf[%d] = %d (not %d)", i, *buf, expected); 292 return -EINVAL; 293 } 294 return 0; 295 } 296 297 static void simple_free_urb (struct urb *urb) 298 { 299 usb_buffer_free (urb->dev, urb->transfer_buffer_length, 300 urb->transfer_buffer, urb->transfer_dma); 301 usb_free_urb (urb); 302 } 303 304 static int simple_io ( 305 struct urb *urb, 306 int iterations, 307 int vary, 308 int expected, 309 const char *label 310 ) 311 { 312 struct usb_device *udev = urb->dev; 313 int max = urb->transfer_buffer_length; 314 struct completion completion; 315 int retval = 0; 316 317 urb->context = &completion; 318 while (retval == 0 && iterations-- > 0) { 319 init_completion (&completion); 320 if (usb_pipeout (urb->pipe)) 321 simple_fill_buf (urb); 322 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) 323 break; 324 325 /* NOTE: no timeouts; can't be broken out of by interrupt */ 326 wait_for_completion (&completion); 327 retval = urb->status; 328 urb->dev = udev; 329 if (retval == 0 && usb_pipein (urb->pipe)) 330 retval = simple_check_buf (urb); 331 332 if (vary) { 333 int len = urb->transfer_buffer_length; 334 335 len += vary; 336 len %= max; 337 if (len == 0) 338 len = (vary < max) ? vary : max; 339 urb->transfer_buffer_length = len; 340 } 341 342 /* FIXME if endpoint halted, clear halt (and log) */ 343 } 344 urb->transfer_buffer_length = max; 345 346 if (expected != retval) 347 dev_dbg (&udev->dev, 348 "%s failed, iterations left %d, status %d (not %d)\n", 349 label, iterations, retval, expected); 350 return retval; 351 } 352 353 354 /*-------------------------------------------------------------------------*/ 355 356 /* We use scatterlist primitives to test queued I/O. 357 * Yes, this also tests the scatterlist primitives. 358 */ 359 360 static void free_sglist (struct scatterlist *sg, int nents) 361 { 362 unsigned i; 363 364 if (!sg) 365 return; 366 for (i = 0; i < nents; i++) { 367 if (!sg [i].page) 368 continue; 369 kfree (page_address (sg [i].page) + sg [i].offset); 370 } 371 kfree (sg); 372 } 373 374 static struct scatterlist * 375 alloc_sglist (int nents, int max, int vary) 376 { 377 struct scatterlist *sg; 378 unsigned i; 379 unsigned size = max; 380 381 sg = kmalloc (nents * sizeof *sg, SLAB_KERNEL); 382 if (!sg) 383 return NULL; 384 memset (sg, 0, nents * sizeof *sg); 385 386 for (i = 0; i < nents; i++) { 387 char *buf; 388 389 buf = kmalloc (size, SLAB_KERNEL); 390 if (!buf) { 391 free_sglist (sg, i); 392 return NULL; 393 } 394 memset (buf, 0, size); 395 396 /* kmalloc pages are always physically contiguous! */ 397 sg [i].page = virt_to_page (buf); 398 sg [i].offset = offset_in_page (buf); 399 sg [i].length = size; 400 401 if (vary) { 402 size += vary; 403 size %= max; 404 if (size == 0) 405 size = (vary < max) ? vary : max; 406 } 407 } 408 409 return sg; 410 } 411 412 static int perform_sglist ( 413 struct usb_device *udev, 414 unsigned iterations, 415 int pipe, 416 struct usb_sg_request *req, 417 struct scatterlist *sg, 418 int nents 419 ) 420 { 421 int retval = 0; 422 423 while (retval == 0 && iterations-- > 0) { 424 retval = usb_sg_init (req, udev, pipe, 425 (udev->speed == USB_SPEED_HIGH) 426 ? (INTERRUPT_RATE << 3) 427 : INTERRUPT_RATE, 428 sg, nents, 0, SLAB_KERNEL); 429 430 if (retval) 431 break; 432 usb_sg_wait (req); 433 retval = req->status; 434 435 /* FIXME if endpoint halted, clear halt (and log) */ 436 } 437 438 // FIXME for unlink or fault handling tests, don't report 439 // failure if retval is as we expected ... 440 441 if (retval) 442 dbg ("perform_sglist failed, iterations left %d, status %d", 443 iterations, retval); 444 return retval; 445 } 446 447 448 /*-------------------------------------------------------------------------*/ 449 450 /* unqueued control message testing 451 * 452 * there's a nice set of device functional requirements in chapter 9 of the 453 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use 454 * special test firmware. 455 * 456 * we know the device is configured (or suspended) by the time it's visible 457 * through usbfs. we can't change that, so we won't test enumeration (which 458 * worked 'well enough' to get here, this time), power management (ditto), 459 * or remote wakeup (which needs human interaction). 460 */ 461 462 static unsigned realworld = 1; 463 module_param (realworld, uint, 0); 464 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); 465 466 static int get_altsetting (struct usbtest_dev *dev) 467 { 468 struct usb_interface *iface = dev->intf; 469 struct usb_device *udev = interface_to_usbdev (iface); 470 int retval; 471 472 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 473 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, 474 0, iface->altsetting [0].desc.bInterfaceNumber, 475 dev->buf, 1, USB_CTRL_GET_TIMEOUT); 476 switch (retval) { 477 case 1: 478 return dev->buf [0]; 479 case 0: 480 retval = -ERANGE; 481 // FALLTHROUGH 482 default: 483 return retval; 484 } 485 } 486 487 static int set_altsetting (struct usbtest_dev *dev, int alternate) 488 { 489 struct usb_interface *iface = dev->intf; 490 struct usb_device *udev; 491 492 if (alternate < 0 || alternate >= 256) 493 return -EINVAL; 494 495 udev = interface_to_usbdev (iface); 496 return usb_set_interface (udev, 497 iface->altsetting [0].desc.bInterfaceNumber, 498 alternate); 499 } 500 501 static int is_good_config (char *buf, int len) 502 { 503 struct usb_config_descriptor *config; 504 505 if (len < sizeof *config) 506 return 0; 507 config = (struct usb_config_descriptor *) buf; 508 509 switch (config->bDescriptorType) { 510 case USB_DT_CONFIG: 511 case USB_DT_OTHER_SPEED_CONFIG: 512 if (config->bLength != 9) { 513 dbg ("bogus config descriptor length"); 514 return 0; 515 } 516 /* this bit 'must be 1' but often isn't */ 517 if (!realworld && !(config->bmAttributes & 0x80)) { 518 dbg ("high bit of config attributes not set"); 519 return 0; 520 } 521 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 522 dbg ("reserved config bits set"); 523 return 0; 524 } 525 break; 526 default: 527 return 0; 528 } 529 530 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ 531 return 1; 532 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 533 return 1; 534 dbg ("bogus config descriptor read size"); 535 return 0; 536 } 537 538 /* sanity test for standard requests working with usb_control_mesg() and some 539 * of the utility functions which use it. 540 * 541 * this doesn't test how endpoint halts behave or data toggles get set, since 542 * we won't do I/O to bulk/interrupt endpoints here (which is how to change 543 * halt or toggle). toggle testing is impractical without support from hcds. 544 * 545 * this avoids failing devices linux would normally work with, by not testing 546 * config/altsetting operations for devices that only support their defaults. 547 * such devices rarely support those needless operations. 548 * 549 * NOTE that since this is a sanity test, it's not examining boundary cases 550 * to see if usbcore, hcd, and device all behave right. such testing would 551 * involve varied read sizes and other operation sequences. 552 */ 553 static int ch9_postconfig (struct usbtest_dev *dev) 554 { 555 struct usb_interface *iface = dev->intf; 556 struct usb_device *udev = interface_to_usbdev (iface); 557 int i, alt, retval; 558 559 /* [9.2.3] if there's more than one altsetting, we need to be able to 560 * set and get each one. mostly trusts the descriptors from usbcore. 561 */ 562 for (i = 0; i < iface->num_altsetting; i++) { 563 564 /* 9.2.3 constrains the range here */ 565 alt = iface->altsetting [i].desc.bAlternateSetting; 566 if (alt < 0 || alt >= iface->num_altsetting) { 567 dev_dbg (&iface->dev, 568 "invalid alt [%d].bAltSetting = %d\n", 569 i, alt); 570 } 571 572 /* [real world] get/set unimplemented if there's only one */ 573 if (realworld && iface->num_altsetting == 1) 574 continue; 575 576 /* [9.4.10] set_interface */ 577 retval = set_altsetting (dev, alt); 578 if (retval) { 579 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n", 580 alt, retval); 581 return retval; 582 } 583 584 /* [9.4.4] get_interface always works */ 585 retval = get_altsetting (dev); 586 if (retval != alt) { 587 dev_dbg (&iface->dev, "get alt should be %d, was %d\n", 588 alt, retval); 589 return (retval < 0) ? retval : -EDOM; 590 } 591 592 } 593 594 /* [real world] get_config unimplemented if there's only one */ 595 if (!realworld || udev->descriptor.bNumConfigurations != 1) { 596 int expected = udev->actconfig->desc.bConfigurationValue; 597 598 /* [9.4.2] get_configuration always works 599 * ... although some cheap devices (like one TI Hub I've got) 600 * won't return config descriptors except before set_config. 601 */ 602 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 603 USB_REQ_GET_CONFIGURATION, 604 USB_DIR_IN | USB_RECIP_DEVICE, 605 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 606 if (retval != 1 || dev->buf [0] != expected) { 607 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n", 608 retval, dev->buf[0], expected); 609 return (retval < 0) ? retval : -EDOM; 610 } 611 } 612 613 /* there's always [9.4.3] a device descriptor [9.6.1] */ 614 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, 615 dev->buf, sizeof udev->descriptor); 616 if (retval != sizeof udev->descriptor) { 617 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval); 618 return (retval < 0) ? retval : -EDOM; 619 } 620 621 /* there's always [9.4.3] at least one config descriptor [9.6.3] */ 622 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 623 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, 624 dev->buf, TBUF_SIZE); 625 if (!is_good_config (dev->buf, retval)) { 626 dev_dbg (&iface->dev, 627 "config [%d] descriptor --> %d\n", 628 i, retval); 629 return (retval < 0) ? retval : -EDOM; 630 } 631 632 // FIXME cross-checking udev->config[i] to make sure usbcore 633 // parsed it right (etc) would be good testing paranoia 634 } 635 636 /* and sometimes [9.2.6.6] speed dependent descriptors */ 637 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { 638 struct usb_qualifier_descriptor *d = NULL; 639 640 /* device qualifier [9.6.2] */ 641 retval = usb_get_descriptor (udev, 642 USB_DT_DEVICE_QUALIFIER, 0, dev->buf, 643 sizeof (struct usb_qualifier_descriptor)); 644 if (retval == -EPIPE) { 645 if (udev->speed == USB_SPEED_HIGH) { 646 dev_dbg (&iface->dev, 647 "hs dev qualifier --> %d\n", 648 retval); 649 return (retval < 0) ? retval : -EDOM; 650 } 651 /* usb2.0 but not high-speed capable; fine */ 652 } else if (retval != sizeof (struct usb_qualifier_descriptor)) { 653 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval); 654 return (retval < 0) ? retval : -EDOM; 655 } else 656 d = (struct usb_qualifier_descriptor *) dev->buf; 657 658 /* might not have [9.6.2] any other-speed configs [9.6.4] */ 659 if (d) { 660 unsigned max = d->bNumConfigurations; 661 for (i = 0; i < max; i++) { 662 retval = usb_get_descriptor (udev, 663 USB_DT_OTHER_SPEED_CONFIG, i, 664 dev->buf, TBUF_SIZE); 665 if (!is_good_config (dev->buf, retval)) { 666 dev_dbg (&iface->dev, 667 "other speed config --> %d\n", 668 retval); 669 return (retval < 0) ? retval : -EDOM; 670 } 671 } 672 } 673 } 674 // FIXME fetch strings from at least the device descriptor 675 676 /* [9.4.5] get_status always works */ 677 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); 678 if (retval != 2) { 679 dev_dbg (&iface->dev, "get dev status --> %d\n", retval); 680 return (retval < 0) ? retval : -EDOM; 681 } 682 683 // FIXME configuration.bmAttributes says if we could try to set/clear 684 // the device's remote wakeup feature ... if we can, test that here 685 686 retval = usb_get_status (udev, USB_RECIP_INTERFACE, 687 iface->altsetting [0].desc.bInterfaceNumber, dev->buf); 688 if (retval != 2) { 689 dev_dbg (&iface->dev, "get interface status --> %d\n", retval); 690 return (retval < 0) ? retval : -EDOM; 691 } 692 // FIXME get status for each endpoint in the interface 693 694 return 0; 695 } 696 697 /*-------------------------------------------------------------------------*/ 698 699 /* use ch9 requests to test whether: 700 * (a) queues work for control, keeping N subtests queued and 701 * active (auto-resubmit) for M loops through the queue. 702 * (b) protocol stalls (control-only) will autorecover. 703 * it's not like bulk/intr; no halt clearing. 704 * (c) short control reads are reported and handled. 705 * (d) queues are always processed in-order 706 */ 707 708 struct ctrl_ctx { 709 spinlock_t lock; 710 struct usbtest_dev *dev; 711 struct completion complete; 712 unsigned count; 713 unsigned pending; 714 int status; 715 struct urb **urb; 716 struct usbtest_param *param; 717 int last; 718 }; 719 720 #define NUM_SUBCASES 15 /* how many test subcases here? */ 721 722 struct subcase { 723 struct usb_ctrlrequest setup; 724 int number; 725 int expected; 726 }; 727 728 static void ctrl_complete (struct urb *urb, struct pt_regs *regs) 729 { 730 struct ctrl_ctx *ctx = urb->context; 731 struct usb_ctrlrequest *reqp; 732 struct subcase *subcase; 733 int status = urb->status; 734 735 reqp = (struct usb_ctrlrequest *)urb->setup_packet; 736 subcase = container_of (reqp, struct subcase, setup); 737 738 spin_lock (&ctx->lock); 739 ctx->count--; 740 ctx->pending--; 741 742 /* queue must transfer and complete in fifo order, unless 743 * usb_unlink_urb() is used to unlink something not at the 744 * physical queue head (not tested). 745 */ 746 if (subcase->number > 0) { 747 if ((subcase->number - ctx->last) != 1) { 748 dbg ("subcase %d completed out of order, last %d", 749 subcase->number, ctx->last); 750 status = -EDOM; 751 ctx->last = subcase->number; 752 goto error; 753 } 754 } 755 ctx->last = subcase->number; 756 757 /* succeed or fault in only one way? */ 758 if (status == subcase->expected) 759 status = 0; 760 761 /* async unlink for cleanup? */ 762 else if (status != -ECONNRESET) { 763 764 /* some faults are allowed, not required */ 765 if (subcase->expected > 0 && ( 766 ((urb->status == -subcase->expected /* happened */ 767 || urb->status == 0)))) /* didn't */ 768 status = 0; 769 /* sometimes more than one fault is allowed */ 770 else if (subcase->number == 12 && status == -EPIPE) 771 status = 0; 772 else 773 dbg ("subtest %d error, status %d", 774 subcase->number, status); 775 } 776 777 /* unexpected status codes mean errors; ideally, in hardware */ 778 if (status) { 779 error: 780 if (ctx->status == 0) { 781 int i; 782 783 ctx->status = status; 784 info ("control queue %02x.%02x, err %d, %d left", 785 reqp->bRequestType, reqp->bRequest, 786 status, ctx->count); 787 788 /* FIXME this "unlink everything" exit route should 789 * be a separate test case. 790 */ 791 792 /* unlink whatever's still pending */ 793 for (i = 1; i < ctx->param->sglen; i++) { 794 struct urb *u = ctx->urb [ 795 (i + subcase->number) % ctx->param->sglen]; 796 797 if (u == urb || !u->dev) 798 continue; 799 status = usb_unlink_urb (u); 800 switch (status) { 801 case -EINPROGRESS: 802 case -EBUSY: 803 case -EIDRM: 804 continue; 805 default: 806 dbg ("urb unlink --> %d", status); 807 } 808 } 809 status = ctx->status; 810 } 811 } 812 813 /* resubmit if we need to, else mark this as done */ 814 if ((status == 0) && (ctx->pending < ctx->count)) { 815 if ((status = usb_submit_urb (urb, SLAB_ATOMIC)) != 0) { 816 dbg ("can't resubmit ctrl %02x.%02x, err %d", 817 reqp->bRequestType, reqp->bRequest, status); 818 urb->dev = NULL; 819 } else 820 ctx->pending++; 821 } else 822 urb->dev = NULL; 823 824 /* signal completion when nothing's queued */ 825 if (ctx->pending == 0) 826 complete (&ctx->complete); 827 spin_unlock (&ctx->lock); 828 } 829 830 static int 831 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) 832 { 833 struct usb_device *udev = testdev_to_usbdev (dev); 834 struct urb **urb; 835 struct ctrl_ctx context; 836 int i; 837 838 spin_lock_init (&context.lock); 839 context.dev = dev; 840 init_completion (&context.complete); 841 context.count = param->sglen * param->iterations; 842 context.pending = 0; 843 context.status = -ENOMEM; 844 context.param = param; 845 context.last = -1; 846 847 /* allocate and init the urbs we'll queue. 848 * as with bulk/intr sglists, sglen is the queue depth; it also 849 * controls which subtests run (more tests than sglen) or rerun. 850 */ 851 urb = kmalloc (param->sglen * sizeof (struct urb *), SLAB_KERNEL); 852 if (!urb) 853 return -ENOMEM; 854 memset (urb, 0, param->sglen * sizeof (struct urb *)); 855 for (i = 0; i < param->sglen; i++) { 856 int pipe = usb_rcvctrlpipe (udev, 0); 857 unsigned len; 858 struct urb *u; 859 struct usb_ctrlrequest req; 860 struct subcase *reqp; 861 int expected = 0; 862 863 /* requests here are mostly expected to succeed on any 864 * device, but some are chosen to trigger protocol stalls 865 * or short reads. 866 */ 867 memset (&req, 0, sizeof req); 868 req.bRequest = USB_REQ_GET_DESCRIPTOR; 869 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 870 871 switch (i % NUM_SUBCASES) { 872 case 0: // get device descriptor 873 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); 874 len = sizeof (struct usb_device_descriptor); 875 break; 876 case 1: // get first config descriptor (only) 877 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 878 len = sizeof (struct usb_config_descriptor); 879 break; 880 case 2: // get altsetting (OFTEN STALLS) 881 req.bRequest = USB_REQ_GET_INTERFACE; 882 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 883 // index = 0 means first interface 884 len = 1; 885 expected = EPIPE; 886 break; 887 case 3: // get interface status 888 req.bRequest = USB_REQ_GET_STATUS; 889 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 890 // interface 0 891 len = 2; 892 break; 893 case 4: // get device status 894 req.bRequest = USB_REQ_GET_STATUS; 895 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 896 len = 2; 897 break; 898 case 5: // get device qualifier (MAY STALL) 899 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); 900 len = sizeof (struct usb_qualifier_descriptor); 901 if (udev->speed != USB_SPEED_HIGH) 902 expected = EPIPE; 903 break; 904 case 6: // get first config descriptor, plus interface 905 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 906 len = sizeof (struct usb_config_descriptor); 907 len += sizeof (struct usb_interface_descriptor); 908 break; 909 case 7: // get interface descriptor (ALWAYS STALLS) 910 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 911 // interface == 0 912 len = sizeof (struct usb_interface_descriptor); 913 expected = EPIPE; 914 break; 915 // NOTE: two consecutive stalls in the queue here. 916 // that tests fault recovery a bit more aggressively. 917 case 8: // clear endpoint halt (USUALLY STALLS) 918 req.bRequest = USB_REQ_CLEAR_FEATURE; 919 req.bRequestType = USB_RECIP_ENDPOINT; 920 // wValue 0 == ep halt 921 // wIndex 0 == ep0 (shouldn't halt!) 922 len = 0; 923 pipe = usb_sndctrlpipe (udev, 0); 924 expected = EPIPE; 925 break; 926 case 9: // get endpoint status 927 req.bRequest = USB_REQ_GET_STATUS; 928 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; 929 // endpoint 0 930 len = 2; 931 break; 932 case 10: // trigger short read (EREMOTEIO) 933 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 934 len = 1024; 935 expected = -EREMOTEIO; 936 break; 937 // NOTE: two consecutive _different_ faults in the queue. 938 case 11: // get endpoint descriptor (ALWAYS STALLS) 939 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); 940 // endpoint == 0 941 len = sizeof (struct usb_interface_descriptor); 942 expected = EPIPE; 943 break; 944 // NOTE: sometimes even a third fault in the queue! 945 case 12: // get string 0 descriptor (MAY STALL) 946 req.wValue = cpu_to_le16 (USB_DT_STRING << 8); 947 // string == 0, for language IDs 948 len = sizeof (struct usb_interface_descriptor); 949 // may succeed when > 4 languages 950 expected = EREMOTEIO; // or EPIPE, if no strings 951 break; 952 case 13: // short read, resembling case 10 953 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 954 // last data packet "should" be DATA1, not DATA0 955 len = 1024 - udev->descriptor.bMaxPacketSize0; 956 expected = -EREMOTEIO; 957 break; 958 case 14: // short read; try to fill the last packet 959 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); 960 // device descriptor size == 18 bytes 961 len = udev->descriptor.bMaxPacketSize0; 962 switch (len) { 963 case 8: len = 24; break; 964 case 16: len = 32; break; 965 } 966 expected = -EREMOTEIO; 967 break; 968 default: 969 err ("bogus number of ctrl queue testcases!"); 970 context.status = -EINVAL; 971 goto cleanup; 972 } 973 req.wLength = cpu_to_le16 (len); 974 urb [i] = u = simple_alloc_urb (udev, pipe, len); 975 if (!u) 976 goto cleanup; 977 978 reqp = usb_buffer_alloc (udev, sizeof *reqp, SLAB_KERNEL, 979 &u->setup_dma); 980 if (!reqp) 981 goto cleanup; 982 reqp->setup = req; 983 reqp->number = i % NUM_SUBCASES; 984 reqp->expected = expected; 985 u->setup_packet = (char *) &reqp->setup; 986 987 u->context = &context; 988 u->complete = ctrl_complete; 989 } 990 991 /* queue the urbs */ 992 context.urb = urb; 993 spin_lock_irq (&context.lock); 994 for (i = 0; i < param->sglen; i++) { 995 context.status = usb_submit_urb (urb [i], SLAB_ATOMIC); 996 if (context.status != 0) { 997 dbg ("can't submit urb[%d], status %d", 998 i, context.status); 999 context.count = context.pending; 1000 break; 1001 } 1002 context.pending++; 1003 } 1004 spin_unlock_irq (&context.lock); 1005 1006 /* FIXME set timer and time out; provide a disconnect hook */ 1007 1008 /* wait for the last one to complete */ 1009 if (context.pending > 0) 1010 wait_for_completion (&context.complete); 1011 1012 cleanup: 1013 for (i = 0; i < param->sglen; i++) { 1014 if (!urb [i]) 1015 continue; 1016 urb [i]->dev = udev; 1017 if (urb [i]->setup_packet) 1018 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest), 1019 urb [i]->setup_packet, 1020 urb [i]->setup_dma); 1021 simple_free_urb (urb [i]); 1022 } 1023 kfree (urb); 1024 return context.status; 1025 } 1026 #undef NUM_SUBCASES 1027 1028 1029 /*-------------------------------------------------------------------------*/ 1030 1031 static void unlink1_callback (struct urb *urb, struct pt_regs *regs) 1032 { 1033 int status = urb->status; 1034 1035 // we "know" -EPIPE (stall) never happens 1036 if (!status) 1037 status = usb_submit_urb (urb, SLAB_ATOMIC); 1038 if (status) { 1039 urb->status = status; 1040 complete ((struct completion *) urb->context); 1041 } 1042 } 1043 1044 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) 1045 { 1046 struct urb *urb; 1047 struct completion completion; 1048 int retval = 0; 1049 1050 init_completion (&completion); 1051 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); 1052 if (!urb) 1053 return -ENOMEM; 1054 urb->context = &completion; 1055 urb->complete = unlink1_callback; 1056 1057 /* keep the endpoint busy. there are lots of hc/hcd-internal 1058 * states, and testing should get to all of them over time. 1059 * 1060 * FIXME want additional tests for when endpoint is STALLing 1061 * due to errors, or is just NAKing requests. 1062 */ 1063 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) { 1064 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval); 1065 return retval; 1066 } 1067 1068 /* unlinking that should always work. variable delay tests more 1069 * hcd states and code paths, even with little other system load. 1070 */ 1071 msleep (jiffies % (2 * INTERRUPT_RATE)); 1072 if (async) { 1073 retry: 1074 retval = usb_unlink_urb (urb); 1075 if (retval == -EBUSY || retval == -EIDRM) { 1076 /* we can't unlink urbs while they're completing. 1077 * or if they've completed, and we haven't resubmitted. 1078 * "normal" drivers would prevent resubmission, but 1079 * since we're testing unlink paths, we can't. 1080 */ 1081 dev_dbg (&dev->intf->dev, "unlink retry\n"); 1082 goto retry; 1083 } 1084 } else 1085 usb_kill_urb (urb); 1086 if (!(retval == 0 || retval == -EINPROGRESS)) { 1087 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval); 1088 return retval; 1089 } 1090 1091 wait_for_completion (&completion); 1092 retval = urb->status; 1093 simple_free_urb (urb); 1094 1095 if (async) 1096 return (retval == -ECONNRESET) ? 0 : retval - 1000; 1097 else 1098 return (retval == -ENOENT || retval == -EPERM) ? 1099 0 : retval - 2000; 1100 } 1101 1102 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len) 1103 { 1104 int retval = 0; 1105 1106 /* test sync and async paths */ 1107 retval = unlink1 (dev, pipe, len, 1); 1108 if (!retval) 1109 retval = unlink1 (dev, pipe, len, 0); 1110 return retval; 1111 } 1112 1113 /*-------------------------------------------------------------------------*/ 1114 1115 static int verify_not_halted (int ep, struct urb *urb) 1116 { 1117 int retval; 1118 u16 status; 1119 1120 /* shouldn't look or act halted */ 1121 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1122 if (retval < 0) { 1123 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval); 1124 return retval; 1125 } 1126 if (status != 0) { 1127 dbg ("ep %02x bogus status: %04x != 0", ep, status); 1128 return -EINVAL; 1129 } 1130 retval = simple_io (urb, 1, 0, 0, __FUNCTION__); 1131 if (retval != 0) 1132 return -EINVAL; 1133 return 0; 1134 } 1135 1136 static int verify_halted (int ep, struct urb *urb) 1137 { 1138 int retval; 1139 u16 status; 1140 1141 /* should look and act halted */ 1142 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1143 if (retval < 0) { 1144 dbg ("ep %02x couldn't get halt status, %d", ep, retval); 1145 return retval; 1146 } 1147 if (status != 1) { 1148 dbg ("ep %02x bogus status: %04x != 1", ep, status); 1149 return -EINVAL; 1150 } 1151 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__); 1152 if (retval != -EPIPE) 1153 return -EINVAL; 1154 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted"); 1155 if (retval != -EPIPE) 1156 return -EINVAL; 1157 return 0; 1158 } 1159 1160 static int test_halt (int ep, struct urb *urb) 1161 { 1162 int retval; 1163 1164 /* shouldn't look or act halted now */ 1165 retval = verify_not_halted (ep, urb); 1166 if (retval < 0) 1167 return retval; 1168 1169 /* set halt (protocol test only), verify it worked */ 1170 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), 1171 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, 1172 USB_ENDPOINT_HALT, ep, 1173 NULL, 0, USB_CTRL_SET_TIMEOUT); 1174 if (retval < 0) { 1175 dbg ("ep %02x couldn't set halt, %d", ep, retval); 1176 return retval; 1177 } 1178 retval = verify_halted (ep, urb); 1179 if (retval < 0) 1180 return retval; 1181 1182 /* clear halt (tests API + protocol), verify it worked */ 1183 retval = usb_clear_halt (urb->dev, urb->pipe); 1184 if (retval < 0) { 1185 dbg ("ep %02x couldn't clear halt, %d", ep, retval); 1186 return retval; 1187 } 1188 retval = verify_not_halted (ep, urb); 1189 if (retval < 0) 1190 return retval; 1191 1192 /* NOTE: could also verify SET_INTERFACE clear halts ... */ 1193 1194 return 0; 1195 } 1196 1197 static int halt_simple (struct usbtest_dev *dev) 1198 { 1199 int ep; 1200 int retval = 0; 1201 struct urb *urb; 1202 1203 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); 1204 if (urb == NULL) 1205 return -ENOMEM; 1206 1207 if (dev->in_pipe) { 1208 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; 1209 urb->pipe = dev->in_pipe; 1210 retval = test_halt (ep, urb); 1211 if (retval < 0) 1212 goto done; 1213 } 1214 1215 if (dev->out_pipe) { 1216 ep = usb_pipeendpoint (dev->out_pipe); 1217 urb->pipe = dev->out_pipe; 1218 retval = test_halt (ep, urb); 1219 } 1220 done: 1221 simple_free_urb (urb); 1222 return retval; 1223 } 1224 1225 /*-------------------------------------------------------------------------*/ 1226 1227 /* Control OUT tests use the vendor control requests from Intel's 1228 * USB 2.0 compliance test device: write a buffer, read it back. 1229 * 1230 * Intel's spec only _requires_ that it work for one packet, which 1231 * is pretty weak. Some HCDs place limits here; most devices will 1232 * need to be able to handle more than one OUT data packet. We'll 1233 * try whatever we're told to try. 1234 */ 1235 static int ctrl_out (struct usbtest_dev *dev, 1236 unsigned count, unsigned length, unsigned vary) 1237 { 1238 unsigned i, j, len, retval; 1239 u8 *buf; 1240 char *what = "?"; 1241 struct usb_device *udev; 1242 1243 if (length < 1 || length > 0xffff || vary >= length) 1244 return -EINVAL; 1245 1246 buf = kmalloc(length, SLAB_KERNEL); 1247 if (!buf) 1248 return -ENOMEM; 1249 1250 udev = testdev_to_usbdev (dev); 1251 len = length; 1252 retval = 0; 1253 1254 /* NOTE: hardware might well act differently if we pushed it 1255 * with lots back-to-back queued requests. 1256 */ 1257 for (i = 0; i < count; i++) { 1258 /* write patterned data */ 1259 for (j = 0; j < len; j++) 1260 buf [j] = i + j; 1261 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), 1262 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, 1263 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); 1264 if (retval != len) { 1265 what = "write"; 1266 if (retval >= 0) { 1267 INFO(dev, "ctrl_out, wlen %d (expected %d)\n", 1268 retval, len); 1269 retval = -EBADMSG; 1270 } 1271 break; 1272 } 1273 1274 /* read it back -- assuming nothing intervened!! */ 1275 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), 1276 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, 1277 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); 1278 if (retval != len) { 1279 what = "read"; 1280 if (retval >= 0) { 1281 INFO(dev, "ctrl_out, rlen %d (expected %d)\n", 1282 retval, len); 1283 retval = -EBADMSG; 1284 } 1285 break; 1286 } 1287 1288 /* fail if we can't verify */ 1289 for (j = 0; j < len; j++) { 1290 if (buf [j] != (u8) (i + j)) { 1291 INFO (dev, "ctrl_out, byte %d is %d not %d\n", 1292 j, buf [j], (u8) i + j); 1293 retval = -EBADMSG; 1294 break; 1295 } 1296 } 1297 if (retval < 0) { 1298 what = "verify"; 1299 break; 1300 } 1301 1302 len += vary; 1303 1304 /* [real world] the "zero bytes IN" case isn't really used. 1305 * hardware can easily trip up in this wierd case, since its 1306 * status stage is IN, not OUT like other ep0in transfers. 1307 */ 1308 if (len > length) 1309 len = realworld ? 1 : 0; 1310 } 1311 1312 if (retval < 0) 1313 INFO (dev, "ctrl_out %s failed, code %d, count %d\n", 1314 what, retval, i); 1315 1316 kfree (buf); 1317 return retval; 1318 } 1319 1320 /*-------------------------------------------------------------------------*/ 1321 1322 /* ISO tests ... mimics common usage 1323 * - buffer length is split into N packets (mostly maxpacket sized) 1324 * - multi-buffers according to sglen 1325 */ 1326 1327 struct iso_context { 1328 unsigned count; 1329 unsigned pending; 1330 spinlock_t lock; 1331 struct completion done; 1332 unsigned long errors; 1333 struct usbtest_dev *dev; 1334 }; 1335 1336 static void iso_callback (struct urb *urb, struct pt_regs *regs) 1337 { 1338 struct iso_context *ctx = urb->context; 1339 1340 spin_lock(&ctx->lock); 1341 ctx->count--; 1342 1343 if (urb->error_count > 0) 1344 ctx->errors += urb->error_count; 1345 1346 if (urb->status == 0 && ctx->count > (ctx->pending - 1)) { 1347 int status = usb_submit_urb (urb, GFP_ATOMIC); 1348 switch (status) { 1349 case 0: 1350 goto done; 1351 default: 1352 dev_dbg (&ctx->dev->intf->dev, 1353 "iso resubmit err %d\n", 1354 status); 1355 /* FALLTHROUGH */ 1356 case -ENODEV: /* disconnected */ 1357 break; 1358 } 1359 } 1360 simple_free_urb (urb); 1361 1362 ctx->pending--; 1363 if (ctx->pending == 0) { 1364 if (ctx->errors) 1365 dev_dbg (&ctx->dev->intf->dev, 1366 "iso test, %lu errors\n", 1367 ctx->errors); 1368 complete (&ctx->done); 1369 } 1370 done: 1371 spin_unlock(&ctx->lock); 1372 } 1373 1374 static struct urb *iso_alloc_urb ( 1375 struct usb_device *udev, 1376 int pipe, 1377 struct usb_endpoint_descriptor *desc, 1378 long bytes 1379 ) 1380 { 1381 struct urb *urb; 1382 unsigned i, maxp, packets; 1383 1384 if (bytes < 0 || !desc) 1385 return NULL; 1386 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); 1387 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); 1388 packets = (bytes + maxp - 1) / maxp; 1389 1390 urb = usb_alloc_urb (packets, SLAB_KERNEL); 1391 if (!urb) 1392 return urb; 1393 urb->dev = udev; 1394 urb->pipe = pipe; 1395 1396 urb->number_of_packets = packets; 1397 urb->transfer_buffer_length = bytes; 1398 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL, 1399 &urb->transfer_dma); 1400 if (!urb->transfer_buffer) { 1401 usb_free_urb (urb); 1402 return NULL; 1403 } 1404 memset (urb->transfer_buffer, 0, bytes); 1405 for (i = 0; i < packets; i++) { 1406 /* here, only the last packet will be short */ 1407 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); 1408 bytes -= urb->iso_frame_desc[i].length; 1409 1410 urb->iso_frame_desc[i].offset = maxp * i; 1411 } 1412 1413 urb->complete = iso_callback; 1414 // urb->context = SET BY CALLER 1415 urb->interval = 1 << (desc->bInterval - 1); 1416 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 1417 return urb; 1418 } 1419 1420 static int 1421 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, 1422 int pipe, struct usb_endpoint_descriptor *desc) 1423 { 1424 struct iso_context context; 1425 struct usb_device *udev; 1426 unsigned i; 1427 unsigned long packets = 0; 1428 int status; 1429 struct urb *urbs[10]; /* FIXME no limit */ 1430 1431 if (param->sglen > 10) 1432 return -EDOM; 1433 1434 context.count = param->iterations * param->sglen; 1435 context.pending = param->sglen; 1436 context.errors = 0; 1437 context.dev = dev; 1438 init_completion (&context.done); 1439 spin_lock_init (&context.lock); 1440 1441 memset (urbs, 0, sizeof urbs); 1442 udev = testdev_to_usbdev (dev); 1443 dev_dbg (&dev->intf->dev, 1444 "... iso period %d %sframes, wMaxPacket %04x\n", 1445 1 << (desc->bInterval - 1), 1446 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1447 le16_to_cpu(desc->wMaxPacketSize)); 1448 1449 for (i = 0; i < param->sglen; i++) { 1450 urbs [i] = iso_alloc_urb (udev, pipe, desc, 1451 param->length); 1452 if (!urbs [i]) { 1453 status = -ENOMEM; 1454 goto fail; 1455 } 1456 packets += urbs[i]->number_of_packets; 1457 urbs [i]->context = &context; 1458 } 1459 packets *= param->iterations; 1460 dev_dbg (&dev->intf->dev, 1461 "... total %lu msec (%lu packets)\n", 1462 (packets * (1 << (desc->bInterval - 1))) 1463 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1464 packets); 1465 1466 spin_lock_irq (&context.lock); 1467 for (i = 0; i < param->sglen; i++) { 1468 status = usb_submit_urb (urbs [i], SLAB_ATOMIC); 1469 if (status < 0) { 1470 ERROR (dev, "submit iso[%d], error %d\n", i, status); 1471 if (i == 0) { 1472 spin_unlock_irq (&context.lock); 1473 goto fail; 1474 } 1475 1476 simple_free_urb (urbs [i]); 1477 context.pending--; 1478 } 1479 } 1480 spin_unlock_irq (&context.lock); 1481 1482 wait_for_completion (&context.done); 1483 return 0; 1484 1485 fail: 1486 for (i = 0; i < param->sglen; i++) { 1487 if (urbs [i]) 1488 simple_free_urb (urbs [i]); 1489 } 1490 return status; 1491 } 1492 1493 /*-------------------------------------------------------------------------*/ 1494 1495 /* We only have this one interface to user space, through usbfs. 1496 * User mode code can scan usbfs to find N different devices (maybe on 1497 * different busses) to use when testing, and allocate one thread per 1498 * test. So discovery is simplified, and we have no device naming issues. 1499 * 1500 * Don't use these only as stress/load tests. Use them along with with 1501 * other USB bus activity: plugging, unplugging, mousing, mp3 playback, 1502 * video capture, and so on. Run different tests at different times, in 1503 * different sequences. Nothing here should interact with other devices, 1504 * except indirectly by consuming USB bandwidth and CPU resources for test 1505 * threads and request completion. But the only way to know that for sure 1506 * is to test when HC queues are in use by many devices. 1507 */ 1508 1509 static int 1510 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) 1511 { 1512 struct usbtest_dev *dev = usb_get_intfdata (intf); 1513 struct usb_device *udev = testdev_to_usbdev (dev); 1514 struct usbtest_param *param = buf; 1515 int retval = -EOPNOTSUPP; 1516 struct urb *urb; 1517 struct scatterlist *sg; 1518 struct usb_sg_request req; 1519 struct timeval start; 1520 unsigned i; 1521 1522 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. 1523 1524 if (code != USBTEST_REQUEST) 1525 return -EOPNOTSUPP; 1526 1527 if (param->iterations <= 0 || param->length < 0 1528 || param->sglen < 0 || param->vary < 0) 1529 return -EINVAL; 1530 1531 if (down_interruptible (&dev->sem)) 1532 return -ERESTARTSYS; 1533 1534 if (intf->dev.power.power_state.event != PM_EVENT_ON) { 1535 up (&dev->sem); 1536 return -EHOSTUNREACH; 1537 } 1538 1539 /* some devices, like ez-usb default devices, need a non-default 1540 * altsetting to have any active endpoints. some tests change 1541 * altsettings; force a default so most tests don't need to check. 1542 */ 1543 if (dev->info->alt >= 0) { 1544 int res; 1545 1546 if (intf->altsetting->desc.bInterfaceNumber) { 1547 up (&dev->sem); 1548 return -ENODEV; 1549 } 1550 res = set_altsetting (dev, dev->info->alt); 1551 if (res) { 1552 dev_err (&intf->dev, 1553 "set altsetting to %d failed, %d\n", 1554 dev->info->alt, res); 1555 up (&dev->sem); 1556 return res; 1557 } 1558 } 1559 1560 /* 1561 * Just a bunch of test cases that every HCD is expected to handle. 1562 * 1563 * Some may need specific firmware, though it'd be good to have 1564 * one firmware image to handle all the test cases. 1565 * 1566 * FIXME add more tests! cancel requests, verify the data, control 1567 * queueing, concurrent read+write threads, and so on. 1568 */ 1569 do_gettimeofday (&start); 1570 switch (param->test_num) { 1571 1572 case 0: 1573 dev_dbg (&intf->dev, "TEST 0: NOP\n"); 1574 retval = 0; 1575 break; 1576 1577 /* Simple non-queued bulk I/O tests */ 1578 case 1: 1579 if (dev->out_pipe == 0) 1580 break; 1581 dev_dbg (&intf->dev, 1582 "TEST 1: write %d bytes %u times\n", 1583 param->length, param->iterations); 1584 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1585 if (!urb) { 1586 retval = -ENOMEM; 1587 break; 1588 } 1589 // FIRMWARE: bulk sink (maybe accepts short writes) 1590 retval = simple_io (urb, param->iterations, 0, 0, "test1"); 1591 simple_free_urb (urb); 1592 break; 1593 case 2: 1594 if (dev->in_pipe == 0) 1595 break; 1596 dev_dbg (&intf->dev, 1597 "TEST 2: read %d bytes %u times\n", 1598 param->length, param->iterations); 1599 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1600 if (!urb) { 1601 retval = -ENOMEM; 1602 break; 1603 } 1604 // FIRMWARE: bulk source (maybe generates short writes) 1605 retval = simple_io (urb, param->iterations, 0, 0, "test2"); 1606 simple_free_urb (urb); 1607 break; 1608 case 3: 1609 if (dev->out_pipe == 0 || param->vary == 0) 1610 break; 1611 dev_dbg (&intf->dev, 1612 "TEST 3: write/%d 0..%d bytes %u times\n", 1613 param->vary, param->length, param->iterations); 1614 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1615 if (!urb) { 1616 retval = -ENOMEM; 1617 break; 1618 } 1619 // FIRMWARE: bulk sink (maybe accepts short writes) 1620 retval = simple_io (urb, param->iterations, param->vary, 1621 0, "test3"); 1622 simple_free_urb (urb); 1623 break; 1624 case 4: 1625 if (dev->in_pipe == 0 || param->vary == 0) 1626 break; 1627 dev_dbg (&intf->dev, 1628 "TEST 4: read/%d 0..%d bytes %u times\n", 1629 param->vary, param->length, param->iterations); 1630 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1631 if (!urb) { 1632 retval = -ENOMEM; 1633 break; 1634 } 1635 // FIRMWARE: bulk source (maybe generates short writes) 1636 retval = simple_io (urb, param->iterations, param->vary, 1637 0, "test4"); 1638 simple_free_urb (urb); 1639 break; 1640 1641 /* Queued bulk I/O tests */ 1642 case 5: 1643 if (dev->out_pipe == 0 || param->sglen == 0) 1644 break; 1645 dev_dbg (&intf->dev, 1646 "TEST 5: write %d sglists %d entries of %d bytes\n", 1647 param->iterations, 1648 param->sglen, param->length); 1649 sg = alloc_sglist (param->sglen, param->length, 0); 1650 if (!sg) { 1651 retval = -ENOMEM; 1652 break; 1653 } 1654 // FIRMWARE: bulk sink (maybe accepts short writes) 1655 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1656 &req, sg, param->sglen); 1657 free_sglist (sg, param->sglen); 1658 break; 1659 1660 case 6: 1661 if (dev->in_pipe == 0 || param->sglen == 0) 1662 break; 1663 dev_dbg (&intf->dev, 1664 "TEST 6: read %d sglists %d entries of %d bytes\n", 1665 param->iterations, 1666 param->sglen, param->length); 1667 sg = alloc_sglist (param->sglen, param->length, 0); 1668 if (!sg) { 1669 retval = -ENOMEM; 1670 break; 1671 } 1672 // FIRMWARE: bulk source (maybe generates short writes) 1673 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1674 &req, sg, param->sglen); 1675 free_sglist (sg, param->sglen); 1676 break; 1677 case 7: 1678 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 1679 break; 1680 dev_dbg (&intf->dev, 1681 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 1682 param->vary, param->iterations, 1683 param->sglen, param->length); 1684 sg = alloc_sglist (param->sglen, param->length, param->vary); 1685 if (!sg) { 1686 retval = -ENOMEM; 1687 break; 1688 } 1689 // FIRMWARE: bulk sink (maybe accepts short writes) 1690 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1691 &req, sg, param->sglen); 1692 free_sglist (sg, param->sglen); 1693 break; 1694 case 8: 1695 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 1696 break; 1697 dev_dbg (&intf->dev, 1698 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 1699 param->vary, param->iterations, 1700 param->sglen, param->length); 1701 sg = alloc_sglist (param->sglen, param->length, param->vary); 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 1712 /* non-queued sanity tests for control (chapter 9 subset) */ 1713 case 9: 1714 retval = 0; 1715 dev_dbg (&intf->dev, 1716 "TEST 9: ch9 (subset) control tests, %d times\n", 1717 param->iterations); 1718 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1719 retval = ch9_postconfig (dev); 1720 if (retval) 1721 dbg ("ch9 subset failed, iterations left %d", i); 1722 break; 1723 1724 /* queued control messaging */ 1725 case 10: 1726 if (param->sglen == 0) 1727 break; 1728 retval = 0; 1729 dev_dbg (&intf->dev, 1730 "TEST 10: queue %d control calls, %d times\n", 1731 param->sglen, 1732 param->iterations); 1733 retval = test_ctrl_queue (dev, param); 1734 break; 1735 1736 /* simple non-queued unlinks (ring with one urb) */ 1737 case 11: 1738 if (dev->in_pipe == 0 || !param->length) 1739 break; 1740 retval = 0; 1741 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n", 1742 param->iterations, param->length); 1743 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1744 retval = unlink_simple (dev, dev->in_pipe, 1745 param->length); 1746 if (retval) 1747 dev_dbg (&intf->dev, "unlink reads failed %d, " 1748 "iterations left %d\n", retval, i); 1749 break; 1750 case 12: 1751 if (dev->out_pipe == 0 || !param->length) 1752 break; 1753 retval = 0; 1754 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n", 1755 param->iterations, param->length); 1756 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1757 retval = unlink_simple (dev, dev->out_pipe, 1758 param->length); 1759 if (retval) 1760 dev_dbg (&intf->dev, "unlink writes failed %d, " 1761 "iterations left %d\n", retval, i); 1762 break; 1763 1764 /* ep halt tests */ 1765 case 13: 1766 if (dev->out_pipe == 0 && dev->in_pipe == 0) 1767 break; 1768 retval = 0; 1769 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n", 1770 param->iterations); 1771 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1772 retval = halt_simple (dev); 1773 1774 if (retval) 1775 DBG (dev, "halts failed, iterations left %d\n", i); 1776 break; 1777 1778 /* control write tests */ 1779 case 14: 1780 if (!dev->info->ctrl_out) 1781 break; 1782 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 1783 param->iterations, 1784 realworld ? 1 : 0, param->length, 1785 param->vary); 1786 retval = ctrl_out (dev, param->iterations, 1787 param->length, param->vary); 1788 break; 1789 1790 /* iso write tests */ 1791 case 15: 1792 if (dev->out_iso_pipe == 0 || param->sglen == 0) 1793 break; 1794 dev_dbg (&intf->dev, 1795 "TEST 15: write %d iso, %d entries of %d bytes\n", 1796 param->iterations, 1797 param->sglen, param->length); 1798 // FIRMWARE: iso sink 1799 retval = test_iso_queue (dev, param, 1800 dev->out_iso_pipe, dev->iso_out); 1801 break; 1802 1803 /* iso read tests */ 1804 case 16: 1805 if (dev->in_iso_pipe == 0 || param->sglen == 0) 1806 break; 1807 dev_dbg (&intf->dev, 1808 "TEST 16: read %d iso, %d entries of %d bytes\n", 1809 param->iterations, 1810 param->sglen, param->length); 1811 // FIRMWARE: iso source 1812 retval = test_iso_queue (dev, param, 1813 dev->in_iso_pipe, dev->iso_in); 1814 break; 1815 1816 // FIXME unlink from queue (ring with N urbs) 1817 1818 // FIXME scatterlist cancel (needs helper thread) 1819 1820 } 1821 do_gettimeofday (¶m->duration); 1822 param->duration.tv_sec -= start.tv_sec; 1823 param->duration.tv_usec -= start.tv_usec; 1824 if (param->duration.tv_usec < 0) { 1825 param->duration.tv_usec += 1000 * 1000; 1826 param->duration.tv_sec -= 1; 1827 } 1828 up (&dev->sem); 1829 return retval; 1830 } 1831 1832 /*-------------------------------------------------------------------------*/ 1833 1834 static unsigned force_interrupt = 0; 1835 module_param (force_interrupt, uint, 0); 1836 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); 1837 1838 #ifdef GENERIC 1839 static unsigned short vendor; 1840 module_param(vendor, ushort, 0); 1841 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); 1842 1843 static unsigned short product; 1844 module_param(product, ushort, 0); 1845 MODULE_PARM_DESC (product, "product code (from vendor)"); 1846 #endif 1847 1848 static int 1849 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) 1850 { 1851 struct usb_device *udev; 1852 struct usbtest_dev *dev; 1853 struct usbtest_info *info; 1854 char *rtest, *wtest; 1855 char *irtest, *iwtest; 1856 1857 udev = interface_to_usbdev (intf); 1858 1859 #ifdef GENERIC 1860 /* specify devices by module parameters? */ 1861 if (id->match_flags == 0) { 1862 /* vendor match required, product match optional */ 1863 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) 1864 return -ENODEV; 1865 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 1866 return -ENODEV; 1867 dbg ("matched module params, vend=0x%04x prod=0x%04x", 1868 le16_to_cpu(udev->descriptor.idVendor), 1869 le16_to_cpu(udev->descriptor.idProduct)); 1870 } 1871 #endif 1872 1873 dev = kmalloc (sizeof *dev, SLAB_KERNEL); 1874 if (!dev) 1875 return -ENOMEM; 1876 memset (dev, 0, sizeof *dev); 1877 info = (struct usbtest_info *) id->driver_info; 1878 dev->info = info; 1879 init_MUTEX (&dev->sem); 1880 1881 dev->intf = intf; 1882 1883 /* cacheline-aligned scratch for i/o */ 1884 if ((dev->buf = kmalloc (TBUF_SIZE, SLAB_KERNEL)) == NULL) { 1885 kfree (dev); 1886 return -ENOMEM; 1887 } 1888 1889 /* NOTE this doesn't yet test the handful of difference that are 1890 * visible with high speed interrupts: bigger maxpacket (1K) and 1891 * "high bandwidth" modes (up to 3 packets/uframe). 1892 */ 1893 rtest = wtest = ""; 1894 irtest = iwtest = ""; 1895 if (force_interrupt || udev->speed == USB_SPEED_LOW) { 1896 if (info->ep_in) { 1897 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); 1898 rtest = " intr-in"; 1899 } 1900 if (info->ep_out) { 1901 dev->out_pipe = usb_sndintpipe (udev, info->ep_out); 1902 wtest = " intr-out"; 1903 } 1904 } else { 1905 if (info->autoconf) { 1906 int status; 1907 1908 status = get_endpoints (dev, intf); 1909 if (status < 0) { 1910 dbg ("couldn't get endpoints, %d\n", status); 1911 return status; 1912 } 1913 /* may find bulk or ISO pipes */ 1914 } else { 1915 if (info->ep_in) 1916 dev->in_pipe = usb_rcvbulkpipe (udev, 1917 info->ep_in); 1918 if (info->ep_out) 1919 dev->out_pipe = usb_sndbulkpipe (udev, 1920 info->ep_out); 1921 } 1922 if (dev->in_pipe) 1923 rtest = " bulk-in"; 1924 if (dev->out_pipe) 1925 wtest = " bulk-out"; 1926 if (dev->in_iso_pipe) 1927 irtest = " iso-in"; 1928 if (dev->out_iso_pipe) 1929 iwtest = " iso-out"; 1930 } 1931 1932 usb_set_intfdata (intf, dev); 1933 dev_info (&intf->dev, "%s\n", info->name); 1934 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", 1935 ({ char *tmp; 1936 switch (udev->speed) { 1937 case USB_SPEED_LOW: tmp = "low"; break; 1938 case USB_SPEED_FULL: tmp = "full"; break; 1939 case USB_SPEED_HIGH: tmp = "high"; break; 1940 default: tmp = "unknown"; break; 1941 }; tmp; }), 1942 info->ctrl_out ? " in/out" : "", 1943 rtest, wtest, 1944 irtest, iwtest, 1945 info->alt >= 0 ? " (+alt)" : ""); 1946 return 0; 1947 } 1948 1949 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) 1950 { 1951 struct usbtest_dev *dev = usb_get_intfdata (intf); 1952 1953 down (&dev->sem); 1954 intf->dev.power.power_state = PMSG_SUSPEND; 1955 up (&dev->sem); 1956 return 0; 1957 } 1958 1959 static int usbtest_resume (struct usb_interface *intf) 1960 { 1961 struct usbtest_dev *dev = usb_get_intfdata (intf); 1962 1963 down (&dev->sem); 1964 intf->dev.power.power_state = PMSG_ON; 1965 up (&dev->sem); 1966 return 0; 1967 } 1968 1969 1970 static void usbtest_disconnect (struct usb_interface *intf) 1971 { 1972 struct usbtest_dev *dev = usb_get_intfdata (intf); 1973 1974 down (&dev->sem); 1975 1976 usb_set_intfdata (intf, NULL); 1977 dev_dbg (&intf->dev, "disconnect\n"); 1978 kfree (dev); 1979 } 1980 1981 /* Basic testing only needs a device that can source or sink bulk traffic. 1982 * Any device can test control transfers (default with GENERIC binding). 1983 * 1984 * Several entries work with the default EP0 implementation that's built 1985 * into EZ-USB chips. There's a default vendor ID which can be overridden 1986 * by (very) small config EEPROMS, but otherwise all these devices act 1987 * identically until firmware is loaded: only EP0 works. It turns out 1988 * to be easy to make other endpoints work, without modifying that EP0 1989 * behavior. For now, we expect that kind of firmware. 1990 */ 1991 1992 /* an21xx or fx versions of ez-usb */ 1993 static struct usbtest_info ez1_info = { 1994 .name = "EZ-USB device", 1995 .ep_in = 2, 1996 .ep_out = 2, 1997 .alt = 1, 1998 }; 1999 2000 /* fx2 version of ez-usb */ 2001 static struct usbtest_info ez2_info = { 2002 .name = "FX2 device", 2003 .ep_in = 6, 2004 .ep_out = 2, 2005 .alt = 1, 2006 }; 2007 2008 /* ezusb family device with dedicated usb test firmware, 2009 */ 2010 static struct usbtest_info fw_info = { 2011 .name = "usb test device", 2012 .ep_in = 2, 2013 .ep_out = 2, 2014 .alt = 1, 2015 .autoconf = 1, // iso and ctrl_out need autoconf 2016 .ctrl_out = 1, 2017 .iso = 1, // iso_ep's are #8 in/out 2018 }; 2019 2020 /* peripheral running Linux and 'zero.c' test firmware, or 2021 * its user-mode cousin. different versions of this use 2022 * different hardware with the same vendor/product codes. 2023 * host side MUST rely on the endpoint descriptors. 2024 */ 2025 static struct usbtest_info gz_info = { 2026 .name = "Linux gadget zero", 2027 .autoconf = 1, 2028 .ctrl_out = 1, 2029 .alt = 0, 2030 }; 2031 2032 static struct usbtest_info um_info = { 2033 .name = "Linux user mode test driver", 2034 .autoconf = 1, 2035 .alt = -1, 2036 }; 2037 2038 static struct usbtest_info um2_info = { 2039 .name = "Linux user mode ISO test driver", 2040 .autoconf = 1, 2041 .iso = 1, 2042 .alt = -1, 2043 }; 2044 2045 #ifdef IBOT2 2046 /* this is a nice source of high speed bulk data; 2047 * uses an FX2, with firmware provided in the device 2048 */ 2049 static struct usbtest_info ibot2_info = { 2050 .name = "iBOT2 webcam", 2051 .ep_in = 2, 2052 .alt = -1, 2053 }; 2054 #endif 2055 2056 #ifdef GENERIC 2057 /* we can use any device to test control traffic */ 2058 static struct usbtest_info generic_info = { 2059 .name = "Generic USB device", 2060 .alt = -1, 2061 }; 2062 #endif 2063 2064 // FIXME remove this 2065 static struct usbtest_info hact_info = { 2066 .name = "FX2/hact", 2067 //.ep_in = 6, 2068 .ep_out = 2, 2069 .alt = -1, 2070 }; 2071 2072 2073 static struct usb_device_id id_table [] = { 2074 2075 { USB_DEVICE (0x0547, 0x1002), 2076 .driver_info = (unsigned long) &hact_info, 2077 }, 2078 2079 /*-------------------------------------------------------------*/ 2080 2081 /* EZ-USB devices which download firmware to replace (or in our 2082 * case augment) the default device implementation. 2083 */ 2084 2085 /* generic EZ-USB FX controller */ 2086 { USB_DEVICE (0x0547, 0x2235), 2087 .driver_info = (unsigned long) &ez1_info, 2088 }, 2089 2090 /* CY3671 development board with EZ-USB FX */ 2091 { USB_DEVICE (0x0547, 0x0080), 2092 .driver_info = (unsigned long) &ez1_info, 2093 }, 2094 2095 /* generic EZ-USB FX2 controller (or development board) */ 2096 { USB_DEVICE (0x04b4, 0x8613), 2097 .driver_info = (unsigned long) &ez2_info, 2098 }, 2099 2100 /* re-enumerated usb test device firmware */ 2101 { USB_DEVICE (0xfff0, 0xfff0), 2102 .driver_info = (unsigned long) &fw_info, 2103 }, 2104 2105 /* "Gadget Zero" firmware runs under Linux */ 2106 { USB_DEVICE (0x0525, 0xa4a0), 2107 .driver_info = (unsigned long) &gz_info, 2108 }, 2109 2110 /* so does a user-mode variant */ 2111 { USB_DEVICE (0x0525, 0xa4a4), 2112 .driver_info = (unsigned long) &um_info, 2113 }, 2114 2115 /* ... and a user-mode variant that talks iso */ 2116 { USB_DEVICE (0x0525, 0xa4a3), 2117 .driver_info = (unsigned long) &um2_info, 2118 }, 2119 2120 #ifdef KEYSPAN_19Qi 2121 /* Keyspan 19qi uses an21xx (original EZ-USB) */ 2122 // this does not coexist with the real Keyspan 19qi driver! 2123 { USB_DEVICE (0x06cd, 0x010b), 2124 .driver_info = (unsigned long) &ez1_info, 2125 }, 2126 #endif 2127 2128 /*-------------------------------------------------------------*/ 2129 2130 #ifdef IBOT2 2131 /* iBOT2 makes a nice source of high speed bulk-in data */ 2132 // this does not coexist with a real iBOT2 driver! 2133 { USB_DEVICE (0x0b62, 0x0059), 2134 .driver_info = (unsigned long) &ibot2_info, 2135 }, 2136 #endif 2137 2138 /*-------------------------------------------------------------*/ 2139 2140 #ifdef GENERIC 2141 /* module params can specify devices to use for control tests */ 2142 { .driver_info = (unsigned long) &generic_info, }, 2143 #endif 2144 2145 /*-------------------------------------------------------------*/ 2146 2147 { } 2148 }; 2149 MODULE_DEVICE_TABLE (usb, id_table); 2150 2151 static struct usb_driver usbtest_driver = { 2152 .owner = THIS_MODULE, 2153 .name = "usbtest", 2154 .id_table = id_table, 2155 .probe = usbtest_probe, 2156 .ioctl = usbtest_ioctl, 2157 .disconnect = usbtest_disconnect, 2158 .suspend = usbtest_suspend, 2159 .resume = usbtest_resume, 2160 }; 2161 2162 /*-------------------------------------------------------------------------*/ 2163 2164 static int __init usbtest_init (void) 2165 { 2166 #ifdef GENERIC 2167 if (vendor) 2168 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product); 2169 #endif 2170 return usb_register (&usbtest_driver); 2171 } 2172 module_init (usbtest_init); 2173 2174 static void __exit usbtest_exit (void) 2175 { 2176 usb_deregister (&usbtest_driver); 2177 } 2178 module_exit (usbtest_exit); 2179 2180 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); 2181 MODULE_LICENSE ("GPL"); 2182 2183