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 10 #include <linux/usb.h> 11 12 13 /*-------------------------------------------------------------------------*/ 14 15 // FIXME make these public somewhere; usbdevfs.h? 16 // 17 struct usbtest_param { 18 // inputs 19 unsigned test_num; /* 0..(TEST_CASES-1) */ 20 unsigned iterations; 21 unsigned length; 22 unsigned vary; 23 unsigned sglen; 24 25 // outputs 26 struct timeval duration; 27 }; 28 #define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param) 29 30 /*-------------------------------------------------------------------------*/ 31 32 #define GENERIC /* let probe() bind using module params */ 33 34 /* Some devices that can be used for testing will have "real" drivers. 35 * Entries for those need to be enabled here by hand, after disabling 36 * that "real" driver. 37 */ 38 //#define IBOT2 /* grab iBOT2 webcams */ 39 //#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */ 40 41 /*-------------------------------------------------------------------------*/ 42 43 struct usbtest_info { 44 const char *name; 45 u8 ep_in; /* bulk/intr source */ 46 u8 ep_out; /* bulk/intr sink */ 47 unsigned autoconf : 1; 48 unsigned ctrl_out : 1; 49 unsigned iso : 1; /* try iso in/out */ 50 int alt; 51 }; 52 53 /* this is accessed only through usbfs ioctl calls. 54 * one ioctl to issue a test ... one lock per device. 55 * tests create other threads if they need them. 56 * urbs and buffers are allocated dynamically, 57 * and data generated deterministically. 58 */ 59 struct usbtest_dev { 60 struct usb_interface *intf; 61 struct usbtest_info *info; 62 int in_pipe; 63 int out_pipe; 64 int in_iso_pipe; 65 int out_iso_pipe; 66 struct usb_endpoint_descriptor *iso_in, *iso_out; 67 struct semaphore sem; 68 69 #define TBUF_SIZE 256 70 u8 *buf; 71 }; 72 73 static struct usb_device *testdev_to_usbdev (struct usbtest_dev *test) 74 { 75 return interface_to_usbdev (test->intf); 76 } 77 78 /* set up all urbs so they can be used with either bulk or interrupt */ 79 #define INTERRUPT_RATE 1 /* msec/transfer */ 80 81 #define xprintk(tdev,level,fmt,args...) \ 82 dev_printk(level , &(tdev)->intf->dev , fmt , ## args) 83 84 #ifdef DEBUG 85 #define DBG(dev,fmt,args...) \ 86 xprintk(dev , KERN_DEBUG , fmt , ## args) 87 #else 88 #define DBG(dev,fmt,args...) \ 89 do { } while (0) 90 #endif /* DEBUG */ 91 92 #ifdef VERBOSE 93 #define VDBG DBG 94 #else 95 #define VDBG(dev,fmt,args...) \ 96 do { } while (0) 97 #endif /* VERBOSE */ 98 99 #define ERROR(dev,fmt,args...) \ 100 xprintk(dev , KERN_ERR , fmt , ## args) 101 #define WARN(dev,fmt,args...) \ 102 xprintk(dev , KERN_WARNING , fmt , ## args) 103 #define INFO(dev,fmt,args...) \ 104 xprintk(dev , KERN_INFO , fmt , ## args) 105 106 /*-------------------------------------------------------------------------*/ 107 108 static int 109 get_endpoints (struct usbtest_dev *dev, struct usb_interface *intf) 110 { 111 int tmp; 112 struct usb_host_interface *alt; 113 struct usb_host_endpoint *in, *out; 114 struct usb_host_endpoint *iso_in, *iso_out; 115 struct usb_device *udev; 116 117 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { 118 unsigned ep; 119 120 in = out = NULL; 121 iso_in = iso_out = NULL; 122 alt = intf->altsetting + tmp; 123 124 /* take the first altsetting with in-bulk + out-bulk; 125 * ignore other endpoints and altsetttings. 126 */ 127 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { 128 struct usb_host_endpoint *e; 129 130 e = alt->endpoint + ep; 131 switch (e->desc.bmAttributes) { 132 case USB_ENDPOINT_XFER_BULK: 133 break; 134 case USB_ENDPOINT_XFER_ISOC: 135 if (dev->info->iso) 136 goto try_iso; 137 // FALLTHROUGH 138 default: 139 continue; 140 } 141 if (e->desc.bEndpointAddress & USB_DIR_IN) { 142 if (!in) 143 in = e; 144 } else { 145 if (!out) 146 out = e; 147 } 148 continue; 149 try_iso: 150 if (e->desc.bEndpointAddress & USB_DIR_IN) { 151 if (!iso_in) 152 iso_in = e; 153 } else { 154 if (!iso_out) 155 iso_out = e; 156 } 157 } 158 if ((in && out) || (iso_in && iso_out)) 159 goto found; 160 } 161 return -EINVAL; 162 163 found: 164 udev = testdev_to_usbdev (dev); 165 if (alt->desc.bAlternateSetting != 0) { 166 tmp = usb_set_interface (udev, 167 alt->desc.bInterfaceNumber, 168 alt->desc.bAlternateSetting); 169 if (tmp < 0) 170 return tmp; 171 } 172 173 if (in) { 174 dev->in_pipe = usb_rcvbulkpipe (udev, 175 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 176 dev->out_pipe = usb_sndbulkpipe (udev, 177 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 178 } 179 if (iso_in) { 180 dev->iso_in = &iso_in->desc; 181 dev->in_iso_pipe = usb_rcvisocpipe (udev, 182 iso_in->desc.bEndpointAddress 183 & USB_ENDPOINT_NUMBER_MASK); 184 dev->iso_out = &iso_out->desc; 185 dev->out_iso_pipe = usb_sndisocpipe (udev, 186 iso_out->desc.bEndpointAddress 187 & USB_ENDPOINT_NUMBER_MASK); 188 } 189 return 0; 190 } 191 192 /*-------------------------------------------------------------------------*/ 193 194 /* Support for testing basic non-queued I/O streams. 195 * 196 * These just package urbs as requests that can be easily canceled. 197 * Each urb's data buffer is dynamically allocated; callers can fill 198 * them with non-zero test data (or test for it) when appropriate. 199 */ 200 201 static void simple_callback (struct urb *urb, struct pt_regs *regs) 202 { 203 complete ((struct completion *) urb->context); 204 } 205 206 static struct urb *simple_alloc_urb ( 207 struct usb_device *udev, 208 int pipe, 209 unsigned long bytes 210 ) 211 { 212 struct urb *urb; 213 214 if (bytes < 0) 215 return NULL; 216 urb = usb_alloc_urb (0, SLAB_KERNEL); 217 if (!urb) 218 return urb; 219 usb_fill_bulk_urb (urb, udev, pipe, NULL, bytes, simple_callback, NULL); 220 urb->interval = (udev->speed == USB_SPEED_HIGH) 221 ? (INTERRUPT_RATE << 3) 222 : INTERRUPT_RATE; 223 urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 224 if (usb_pipein (pipe)) 225 urb->transfer_flags |= URB_SHORT_NOT_OK; 226 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL, 227 &urb->transfer_dma); 228 if (!urb->transfer_buffer) { 229 usb_free_urb (urb); 230 urb = NULL; 231 } else 232 memset (urb->transfer_buffer, 0, bytes); 233 return urb; 234 } 235 236 static unsigned pattern = 0; 237 module_param (pattern, uint, S_IRUGO); 238 // MODULE_PARM_DESC (pattern, "i/o pattern (0 == zeroes)"); 239 240 static inline void simple_fill_buf (struct urb *urb) 241 { 242 unsigned i; 243 u8 *buf = urb->transfer_buffer; 244 unsigned len = urb->transfer_buffer_length; 245 246 switch (pattern) { 247 default: 248 // FALLTHROUGH 249 case 0: 250 memset (buf, 0, len); 251 break; 252 case 1: /* mod63 */ 253 for (i = 0; i < len; i++) 254 *buf++ = (u8) (i % 63); 255 break; 256 } 257 } 258 259 static inline int simple_check_buf (struct urb *urb) 260 { 261 unsigned i; 262 u8 expected; 263 u8 *buf = urb->transfer_buffer; 264 unsigned len = urb->actual_length; 265 266 for (i = 0; i < len; i++, buf++) { 267 switch (pattern) { 268 /* all-zeroes has no synchronization issues */ 269 case 0: 270 expected = 0; 271 break; 272 /* mod63 stays in sync with short-terminated transfers, 273 * or otherwise when host and gadget agree on how large 274 * each usb transfer request should be. resync is done 275 * with set_interface or set_config. 276 */ 277 case 1: /* mod63 */ 278 expected = i % 63; 279 break; 280 /* always fail unsupported patterns */ 281 default: 282 expected = !*buf; 283 break; 284 } 285 if (*buf == expected) 286 continue; 287 dbg ("buf[%d] = %d (not %d)", i, *buf, expected); 288 return -EINVAL; 289 } 290 return 0; 291 } 292 293 static void simple_free_urb (struct urb *urb) 294 { 295 usb_buffer_free (urb->dev, urb->transfer_buffer_length, 296 urb->transfer_buffer, urb->transfer_dma); 297 usb_free_urb (urb); 298 } 299 300 static int simple_io ( 301 struct urb *urb, 302 int iterations, 303 int vary, 304 int expected, 305 const char *label 306 ) 307 { 308 struct usb_device *udev = urb->dev; 309 int max = urb->transfer_buffer_length; 310 struct completion completion; 311 int retval = 0; 312 313 urb->context = &completion; 314 while (retval == 0 && iterations-- > 0) { 315 init_completion (&completion); 316 if (usb_pipeout (urb->pipe)) 317 simple_fill_buf (urb); 318 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) 319 break; 320 321 /* NOTE: no timeouts; can't be broken out of by interrupt */ 322 wait_for_completion (&completion); 323 retval = urb->status; 324 urb->dev = udev; 325 if (retval == 0 && usb_pipein (urb->pipe)) 326 retval = simple_check_buf (urb); 327 328 if (vary) { 329 int len = urb->transfer_buffer_length; 330 331 len += vary; 332 len %= max; 333 if (len == 0) 334 len = (vary < max) ? vary : max; 335 urb->transfer_buffer_length = len; 336 } 337 338 /* FIXME if endpoint halted, clear halt (and log) */ 339 } 340 urb->transfer_buffer_length = max; 341 342 if (expected != retval) 343 dev_dbg (&udev->dev, 344 "%s failed, iterations left %d, status %d (not %d)\n", 345 label, iterations, retval, expected); 346 return retval; 347 } 348 349 350 /*-------------------------------------------------------------------------*/ 351 352 /* We use scatterlist primitives to test queued I/O. 353 * Yes, this also tests the scatterlist primitives. 354 */ 355 356 static void free_sglist (struct scatterlist *sg, int nents) 357 { 358 unsigned i; 359 360 if (!sg) 361 return; 362 for (i = 0; i < nents; i++) { 363 if (!sg [i].page) 364 continue; 365 kfree (page_address (sg [i].page) + sg [i].offset); 366 } 367 kfree (sg); 368 } 369 370 static struct scatterlist * 371 alloc_sglist (int nents, int max, int vary) 372 { 373 struct scatterlist *sg; 374 unsigned i; 375 unsigned size = max; 376 377 sg = kmalloc (nents * sizeof *sg, SLAB_KERNEL); 378 if (!sg) 379 return NULL; 380 381 for (i = 0; i < nents; i++) { 382 char *buf; 383 unsigned j; 384 385 buf = kzalloc (size, SLAB_KERNEL); 386 if (!buf) { 387 free_sglist (sg, i); 388 return NULL; 389 } 390 391 /* kmalloc pages are always physically contiguous! */ 392 sg_init_one(&sg[i], buf, size); 393 394 switch (pattern) { 395 case 0: 396 /* already zeroed */ 397 break; 398 case 1: 399 for (j = 0; j < size; j++) 400 *buf++ = (u8) (j % 63); 401 break; 402 } 403 404 if (vary) { 405 size += vary; 406 size %= max; 407 if (size == 0) 408 size = (vary < max) ? vary : max; 409 } 410 } 411 412 return sg; 413 } 414 415 static int perform_sglist ( 416 struct usb_device *udev, 417 unsigned iterations, 418 int pipe, 419 struct usb_sg_request *req, 420 struct scatterlist *sg, 421 int nents 422 ) 423 { 424 int retval = 0; 425 426 while (retval == 0 && iterations-- > 0) { 427 retval = usb_sg_init (req, udev, pipe, 428 (udev->speed == USB_SPEED_HIGH) 429 ? (INTERRUPT_RATE << 3) 430 : INTERRUPT_RATE, 431 sg, nents, 0, SLAB_KERNEL); 432 433 if (retval) 434 break; 435 usb_sg_wait (req); 436 retval = req->status; 437 438 /* FIXME check resulting data pattern */ 439 440 /* FIXME if endpoint halted, clear halt (and log) */ 441 } 442 443 // FIXME for unlink or fault handling tests, don't report 444 // failure if retval is as we expected ... 445 446 if (retval) 447 dbg ("perform_sglist failed, iterations left %d, status %d", 448 iterations, retval); 449 return retval; 450 } 451 452 453 /*-------------------------------------------------------------------------*/ 454 455 /* unqueued control message testing 456 * 457 * there's a nice set of device functional requirements in chapter 9 of the 458 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use 459 * special test firmware. 460 * 461 * we know the device is configured (or suspended) by the time it's visible 462 * through usbfs. we can't change that, so we won't test enumeration (which 463 * worked 'well enough' to get here, this time), power management (ditto), 464 * or remote wakeup (which needs human interaction). 465 */ 466 467 static unsigned realworld = 1; 468 module_param (realworld, uint, 0); 469 MODULE_PARM_DESC (realworld, "clear to demand stricter spec compliance"); 470 471 static int get_altsetting (struct usbtest_dev *dev) 472 { 473 struct usb_interface *iface = dev->intf; 474 struct usb_device *udev = interface_to_usbdev (iface); 475 int retval; 476 477 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 478 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, 479 0, iface->altsetting [0].desc.bInterfaceNumber, 480 dev->buf, 1, USB_CTRL_GET_TIMEOUT); 481 switch (retval) { 482 case 1: 483 return dev->buf [0]; 484 case 0: 485 retval = -ERANGE; 486 // FALLTHROUGH 487 default: 488 return retval; 489 } 490 } 491 492 static int set_altsetting (struct usbtest_dev *dev, int alternate) 493 { 494 struct usb_interface *iface = dev->intf; 495 struct usb_device *udev; 496 497 if (alternate < 0 || alternate >= 256) 498 return -EINVAL; 499 500 udev = interface_to_usbdev (iface); 501 return usb_set_interface (udev, 502 iface->altsetting [0].desc.bInterfaceNumber, 503 alternate); 504 } 505 506 static int is_good_config (char *buf, int len) 507 { 508 struct usb_config_descriptor *config; 509 510 if (len < sizeof *config) 511 return 0; 512 config = (struct usb_config_descriptor *) buf; 513 514 switch (config->bDescriptorType) { 515 case USB_DT_CONFIG: 516 case USB_DT_OTHER_SPEED_CONFIG: 517 if (config->bLength != 9) { 518 dbg ("bogus config descriptor length"); 519 return 0; 520 } 521 /* this bit 'must be 1' but often isn't */ 522 if (!realworld && !(config->bmAttributes & 0x80)) { 523 dbg ("high bit of config attributes not set"); 524 return 0; 525 } 526 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 527 dbg ("reserved config bits set"); 528 return 0; 529 } 530 break; 531 default: 532 return 0; 533 } 534 535 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ 536 return 1; 537 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 538 return 1; 539 dbg ("bogus config descriptor read size"); 540 return 0; 541 } 542 543 /* sanity test for standard requests working with usb_control_mesg() and some 544 * of the utility functions which use it. 545 * 546 * this doesn't test how endpoint halts behave or data toggles get set, since 547 * we won't do I/O to bulk/interrupt endpoints here (which is how to change 548 * halt or toggle). toggle testing is impractical without support from hcds. 549 * 550 * this avoids failing devices linux would normally work with, by not testing 551 * config/altsetting operations for devices that only support their defaults. 552 * such devices rarely support those needless operations. 553 * 554 * NOTE that since this is a sanity test, it's not examining boundary cases 555 * to see if usbcore, hcd, and device all behave right. such testing would 556 * involve varied read sizes and other operation sequences. 557 */ 558 static int ch9_postconfig (struct usbtest_dev *dev) 559 { 560 struct usb_interface *iface = dev->intf; 561 struct usb_device *udev = interface_to_usbdev (iface); 562 int i, alt, retval; 563 564 /* [9.2.3] if there's more than one altsetting, we need to be able to 565 * set and get each one. mostly trusts the descriptors from usbcore. 566 */ 567 for (i = 0; i < iface->num_altsetting; i++) { 568 569 /* 9.2.3 constrains the range here */ 570 alt = iface->altsetting [i].desc.bAlternateSetting; 571 if (alt < 0 || alt >= iface->num_altsetting) { 572 dev_dbg (&iface->dev, 573 "invalid alt [%d].bAltSetting = %d\n", 574 i, alt); 575 } 576 577 /* [real world] get/set unimplemented if there's only one */ 578 if (realworld && iface->num_altsetting == 1) 579 continue; 580 581 /* [9.4.10] set_interface */ 582 retval = set_altsetting (dev, alt); 583 if (retval) { 584 dev_dbg (&iface->dev, "can't set_interface = %d, %d\n", 585 alt, retval); 586 return retval; 587 } 588 589 /* [9.4.4] get_interface always works */ 590 retval = get_altsetting (dev); 591 if (retval != alt) { 592 dev_dbg (&iface->dev, "get alt should be %d, was %d\n", 593 alt, retval); 594 return (retval < 0) ? retval : -EDOM; 595 } 596 597 } 598 599 /* [real world] get_config unimplemented if there's only one */ 600 if (!realworld || udev->descriptor.bNumConfigurations != 1) { 601 int expected = udev->actconfig->desc.bConfigurationValue; 602 603 /* [9.4.2] get_configuration always works 604 * ... although some cheap devices (like one TI Hub I've got) 605 * won't return config descriptors except before set_config. 606 */ 607 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0), 608 USB_REQ_GET_CONFIGURATION, 609 USB_DIR_IN | USB_RECIP_DEVICE, 610 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 611 if (retval != 1 || dev->buf [0] != expected) { 612 dev_dbg (&iface->dev, "get config --> %d %d (1 %d)\n", 613 retval, dev->buf[0], expected); 614 return (retval < 0) ? retval : -EDOM; 615 } 616 } 617 618 /* there's always [9.4.3] a device descriptor [9.6.1] */ 619 retval = usb_get_descriptor (udev, USB_DT_DEVICE, 0, 620 dev->buf, sizeof udev->descriptor); 621 if (retval != sizeof udev->descriptor) { 622 dev_dbg (&iface->dev, "dev descriptor --> %d\n", retval); 623 return (retval < 0) ? retval : -EDOM; 624 } 625 626 /* there's always [9.4.3] at least one config descriptor [9.6.3] */ 627 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 628 retval = usb_get_descriptor (udev, USB_DT_CONFIG, i, 629 dev->buf, TBUF_SIZE); 630 if (!is_good_config (dev->buf, retval)) { 631 dev_dbg (&iface->dev, 632 "config [%d] descriptor --> %d\n", 633 i, retval); 634 return (retval < 0) ? retval : -EDOM; 635 } 636 637 // FIXME cross-checking udev->config[i] to make sure usbcore 638 // parsed it right (etc) would be good testing paranoia 639 } 640 641 /* and sometimes [9.2.6.6] speed dependent descriptors */ 642 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { 643 struct usb_qualifier_descriptor *d = NULL; 644 645 /* device qualifier [9.6.2] */ 646 retval = usb_get_descriptor (udev, 647 USB_DT_DEVICE_QUALIFIER, 0, dev->buf, 648 sizeof (struct usb_qualifier_descriptor)); 649 if (retval == -EPIPE) { 650 if (udev->speed == USB_SPEED_HIGH) { 651 dev_dbg (&iface->dev, 652 "hs dev qualifier --> %d\n", 653 retval); 654 return (retval < 0) ? retval : -EDOM; 655 } 656 /* usb2.0 but not high-speed capable; fine */ 657 } else if (retval != sizeof (struct usb_qualifier_descriptor)) { 658 dev_dbg (&iface->dev, "dev qualifier --> %d\n", retval); 659 return (retval < 0) ? retval : -EDOM; 660 } else 661 d = (struct usb_qualifier_descriptor *) dev->buf; 662 663 /* might not have [9.6.2] any other-speed configs [9.6.4] */ 664 if (d) { 665 unsigned max = d->bNumConfigurations; 666 for (i = 0; i < max; i++) { 667 retval = usb_get_descriptor (udev, 668 USB_DT_OTHER_SPEED_CONFIG, i, 669 dev->buf, TBUF_SIZE); 670 if (!is_good_config (dev->buf, retval)) { 671 dev_dbg (&iface->dev, 672 "other speed config --> %d\n", 673 retval); 674 return (retval < 0) ? retval : -EDOM; 675 } 676 } 677 } 678 } 679 // FIXME fetch strings from at least the device descriptor 680 681 /* [9.4.5] get_status always works */ 682 retval = usb_get_status (udev, USB_RECIP_DEVICE, 0, dev->buf); 683 if (retval != 2) { 684 dev_dbg (&iface->dev, "get dev status --> %d\n", retval); 685 return (retval < 0) ? retval : -EDOM; 686 } 687 688 // FIXME configuration.bmAttributes says if we could try to set/clear 689 // the device's remote wakeup feature ... if we can, test that here 690 691 retval = usb_get_status (udev, USB_RECIP_INTERFACE, 692 iface->altsetting [0].desc.bInterfaceNumber, dev->buf); 693 if (retval != 2) { 694 dev_dbg (&iface->dev, "get interface status --> %d\n", retval); 695 return (retval < 0) ? retval : -EDOM; 696 } 697 // FIXME get status for each endpoint in the interface 698 699 return 0; 700 } 701 702 /*-------------------------------------------------------------------------*/ 703 704 /* use ch9 requests to test whether: 705 * (a) queues work for control, keeping N subtests queued and 706 * active (auto-resubmit) for M loops through the queue. 707 * (b) protocol stalls (control-only) will autorecover. 708 * it's not like bulk/intr; no halt clearing. 709 * (c) short control reads are reported and handled. 710 * (d) queues are always processed in-order 711 */ 712 713 struct ctrl_ctx { 714 spinlock_t lock; 715 struct usbtest_dev *dev; 716 struct completion complete; 717 unsigned count; 718 unsigned pending; 719 int status; 720 struct urb **urb; 721 struct usbtest_param *param; 722 int last; 723 }; 724 725 #define NUM_SUBCASES 15 /* how many test subcases here? */ 726 727 struct subcase { 728 struct usb_ctrlrequest setup; 729 int number; 730 int expected; 731 }; 732 733 static void ctrl_complete (struct urb *urb, struct pt_regs *regs) 734 { 735 struct ctrl_ctx *ctx = urb->context; 736 struct usb_ctrlrequest *reqp; 737 struct subcase *subcase; 738 int status = urb->status; 739 740 reqp = (struct usb_ctrlrequest *)urb->setup_packet; 741 subcase = container_of (reqp, struct subcase, setup); 742 743 spin_lock (&ctx->lock); 744 ctx->count--; 745 ctx->pending--; 746 747 /* queue must transfer and complete in fifo order, unless 748 * usb_unlink_urb() is used to unlink something not at the 749 * physical queue head (not tested). 750 */ 751 if (subcase->number > 0) { 752 if ((subcase->number - ctx->last) != 1) { 753 dbg ("subcase %d completed out of order, last %d", 754 subcase->number, ctx->last); 755 status = -EDOM; 756 ctx->last = subcase->number; 757 goto error; 758 } 759 } 760 ctx->last = subcase->number; 761 762 /* succeed or fault in only one way? */ 763 if (status == subcase->expected) 764 status = 0; 765 766 /* async unlink for cleanup? */ 767 else if (status != -ECONNRESET) { 768 769 /* some faults are allowed, not required */ 770 if (subcase->expected > 0 && ( 771 ((urb->status == -subcase->expected /* happened */ 772 || urb->status == 0)))) /* didn't */ 773 status = 0; 774 /* sometimes more than one fault is allowed */ 775 else if (subcase->number == 12 && status == -EPIPE) 776 status = 0; 777 else 778 dbg ("subtest %d error, status %d", 779 subcase->number, status); 780 } 781 782 /* unexpected status codes mean errors; ideally, in hardware */ 783 if (status) { 784 error: 785 if (ctx->status == 0) { 786 int i; 787 788 ctx->status = status; 789 info ("control queue %02x.%02x, err %d, %d left", 790 reqp->bRequestType, reqp->bRequest, 791 status, ctx->count); 792 793 /* FIXME this "unlink everything" exit route should 794 * be a separate test case. 795 */ 796 797 /* unlink whatever's still pending */ 798 for (i = 1; i < ctx->param->sglen; i++) { 799 struct urb *u = ctx->urb [ 800 (i + subcase->number) % ctx->param->sglen]; 801 802 if (u == urb || !u->dev) 803 continue; 804 spin_unlock(&ctx->lock); 805 status = usb_unlink_urb (u); 806 spin_lock(&ctx->lock); 807 switch (status) { 808 case -EINPROGRESS: 809 case -EBUSY: 810 case -EIDRM: 811 continue; 812 default: 813 dbg ("urb unlink --> %d", status); 814 } 815 } 816 status = ctx->status; 817 } 818 } 819 820 /* resubmit if we need to, else mark this as done */ 821 if ((status == 0) && (ctx->pending < ctx->count)) { 822 if ((status = usb_submit_urb (urb, SLAB_ATOMIC)) != 0) { 823 dbg ("can't resubmit ctrl %02x.%02x, err %d", 824 reqp->bRequestType, reqp->bRequest, status); 825 urb->dev = NULL; 826 } else 827 ctx->pending++; 828 } else 829 urb->dev = NULL; 830 831 /* signal completion when nothing's queued */ 832 if (ctx->pending == 0) 833 complete (&ctx->complete); 834 spin_unlock (&ctx->lock); 835 } 836 837 static int 838 test_ctrl_queue (struct usbtest_dev *dev, struct usbtest_param *param) 839 { 840 struct usb_device *udev = testdev_to_usbdev (dev); 841 struct urb **urb; 842 struct ctrl_ctx context; 843 int i; 844 845 spin_lock_init (&context.lock); 846 context.dev = dev; 847 init_completion (&context.complete); 848 context.count = param->sglen * param->iterations; 849 context.pending = 0; 850 context.status = -ENOMEM; 851 context.param = param; 852 context.last = -1; 853 854 /* allocate and init the urbs we'll queue. 855 * as with bulk/intr sglists, sglen is the queue depth; it also 856 * controls which subtests run (more tests than sglen) or rerun. 857 */ 858 urb = kcalloc(param->sglen, sizeof(struct urb *), SLAB_KERNEL); 859 if (!urb) 860 return -ENOMEM; 861 for (i = 0; i < param->sglen; i++) { 862 int pipe = usb_rcvctrlpipe (udev, 0); 863 unsigned len; 864 struct urb *u; 865 struct usb_ctrlrequest req; 866 struct subcase *reqp; 867 int expected = 0; 868 869 /* requests here are mostly expected to succeed on any 870 * device, but some are chosen to trigger protocol stalls 871 * or short reads. 872 */ 873 memset (&req, 0, sizeof req); 874 req.bRequest = USB_REQ_GET_DESCRIPTOR; 875 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 876 877 switch (i % NUM_SUBCASES) { 878 case 0: // get device descriptor 879 req.wValue = cpu_to_le16 (USB_DT_DEVICE << 8); 880 len = sizeof (struct usb_device_descriptor); 881 break; 882 case 1: // get first config descriptor (only) 883 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 884 len = sizeof (struct usb_config_descriptor); 885 break; 886 case 2: // get altsetting (OFTEN STALLS) 887 req.bRequest = USB_REQ_GET_INTERFACE; 888 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 889 // index = 0 means first interface 890 len = 1; 891 expected = EPIPE; 892 break; 893 case 3: // get interface status 894 req.bRequest = USB_REQ_GET_STATUS; 895 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 896 // interface 0 897 len = 2; 898 break; 899 case 4: // get device status 900 req.bRequest = USB_REQ_GET_STATUS; 901 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 902 len = 2; 903 break; 904 case 5: // get device qualifier (MAY STALL) 905 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); 906 len = sizeof (struct usb_qualifier_descriptor); 907 if (udev->speed != USB_SPEED_HIGH) 908 expected = EPIPE; 909 break; 910 case 6: // get first config descriptor, plus interface 911 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 912 len = sizeof (struct usb_config_descriptor); 913 len += sizeof (struct usb_interface_descriptor); 914 break; 915 case 7: // get interface descriptor (ALWAYS STALLS) 916 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 917 // interface == 0 918 len = sizeof (struct usb_interface_descriptor); 919 expected = EPIPE; 920 break; 921 // NOTE: two consecutive stalls in the queue here. 922 // that tests fault recovery a bit more aggressively. 923 case 8: // clear endpoint halt (USUALLY STALLS) 924 req.bRequest = USB_REQ_CLEAR_FEATURE; 925 req.bRequestType = USB_RECIP_ENDPOINT; 926 // wValue 0 == ep halt 927 // wIndex 0 == ep0 (shouldn't halt!) 928 len = 0; 929 pipe = usb_sndctrlpipe (udev, 0); 930 expected = EPIPE; 931 break; 932 case 9: // get endpoint status 933 req.bRequest = USB_REQ_GET_STATUS; 934 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; 935 // endpoint 0 936 len = 2; 937 break; 938 case 10: // trigger short read (EREMOTEIO) 939 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 940 len = 1024; 941 expected = -EREMOTEIO; 942 break; 943 // NOTE: two consecutive _different_ faults in the queue. 944 case 11: // get endpoint descriptor (ALWAYS STALLS) 945 req.wValue = cpu_to_le16 (USB_DT_ENDPOINT << 8); 946 // endpoint == 0 947 len = sizeof (struct usb_interface_descriptor); 948 expected = EPIPE; 949 break; 950 // NOTE: sometimes even a third fault in the queue! 951 case 12: // get string 0 descriptor (MAY STALL) 952 req.wValue = cpu_to_le16 (USB_DT_STRING << 8); 953 // string == 0, for language IDs 954 len = sizeof (struct usb_interface_descriptor); 955 // may succeed when > 4 languages 956 expected = EREMOTEIO; // or EPIPE, if no strings 957 break; 958 case 13: // short read, resembling case 10 959 req.wValue = cpu_to_le16 ((USB_DT_CONFIG << 8) | 0); 960 // last data packet "should" be DATA1, not DATA0 961 len = 1024 - udev->descriptor.bMaxPacketSize0; 962 expected = -EREMOTEIO; 963 break; 964 case 14: // short read; try to fill the last packet 965 req.wValue = cpu_to_le16 ((USB_DT_DEVICE << 8) | 0); 966 // device descriptor size == 18 bytes 967 len = udev->descriptor.bMaxPacketSize0; 968 switch (len) { 969 case 8: len = 24; break; 970 case 16: len = 32; break; 971 } 972 expected = -EREMOTEIO; 973 break; 974 default: 975 err ("bogus number of ctrl queue testcases!"); 976 context.status = -EINVAL; 977 goto cleanup; 978 } 979 req.wLength = cpu_to_le16 (len); 980 urb [i] = u = simple_alloc_urb (udev, pipe, len); 981 if (!u) 982 goto cleanup; 983 984 reqp = usb_buffer_alloc (udev, sizeof *reqp, SLAB_KERNEL, 985 &u->setup_dma); 986 if (!reqp) 987 goto cleanup; 988 reqp->setup = req; 989 reqp->number = i % NUM_SUBCASES; 990 reqp->expected = expected; 991 u->setup_packet = (char *) &reqp->setup; 992 u->transfer_flags |= URB_NO_SETUP_DMA_MAP; 993 994 u->context = &context; 995 u->complete = ctrl_complete; 996 } 997 998 /* queue the urbs */ 999 context.urb = urb; 1000 spin_lock_irq (&context.lock); 1001 for (i = 0; i < param->sglen; i++) { 1002 context.status = usb_submit_urb (urb [i], SLAB_ATOMIC); 1003 if (context.status != 0) { 1004 dbg ("can't submit urb[%d], status %d", 1005 i, context.status); 1006 context.count = context.pending; 1007 break; 1008 } 1009 context.pending++; 1010 } 1011 spin_unlock_irq (&context.lock); 1012 1013 /* FIXME set timer and time out; provide a disconnect hook */ 1014 1015 /* wait for the last one to complete */ 1016 if (context.pending > 0) 1017 wait_for_completion (&context.complete); 1018 1019 cleanup: 1020 for (i = 0; i < param->sglen; i++) { 1021 if (!urb [i]) 1022 continue; 1023 urb [i]->dev = udev; 1024 if (urb [i]->setup_packet) 1025 usb_buffer_free (udev, sizeof (struct usb_ctrlrequest), 1026 urb [i]->setup_packet, 1027 urb [i]->setup_dma); 1028 simple_free_urb (urb [i]); 1029 } 1030 kfree (urb); 1031 return context.status; 1032 } 1033 #undef NUM_SUBCASES 1034 1035 1036 /*-------------------------------------------------------------------------*/ 1037 1038 static void unlink1_callback (struct urb *urb, struct pt_regs *regs) 1039 { 1040 int status = urb->status; 1041 1042 // we "know" -EPIPE (stall) never happens 1043 if (!status) 1044 status = usb_submit_urb (urb, SLAB_ATOMIC); 1045 if (status) { 1046 urb->status = status; 1047 complete ((struct completion *) urb->context); 1048 } 1049 } 1050 1051 static int unlink1 (struct usbtest_dev *dev, int pipe, int size, int async) 1052 { 1053 struct urb *urb; 1054 struct completion completion; 1055 int retval = 0; 1056 1057 init_completion (&completion); 1058 urb = simple_alloc_urb (testdev_to_usbdev (dev), pipe, size); 1059 if (!urb) 1060 return -ENOMEM; 1061 urb->context = &completion; 1062 urb->complete = unlink1_callback; 1063 1064 /* keep the endpoint busy. there are lots of hc/hcd-internal 1065 * states, and testing should get to all of them over time. 1066 * 1067 * FIXME want additional tests for when endpoint is STALLing 1068 * due to errors, or is just NAKing requests. 1069 */ 1070 if ((retval = usb_submit_urb (urb, SLAB_KERNEL)) != 0) { 1071 dev_dbg (&dev->intf->dev, "submit fail %d\n", retval); 1072 return retval; 1073 } 1074 1075 /* unlinking that should always work. variable delay tests more 1076 * hcd states and code paths, even with little other system load. 1077 */ 1078 msleep (jiffies % (2 * INTERRUPT_RATE)); 1079 if (async) { 1080 retry: 1081 retval = usb_unlink_urb (urb); 1082 if (retval == -EBUSY || retval == -EIDRM) { 1083 /* we can't unlink urbs while they're completing. 1084 * or if they've completed, and we haven't resubmitted. 1085 * "normal" drivers would prevent resubmission, but 1086 * since we're testing unlink paths, we can't. 1087 */ 1088 dev_dbg (&dev->intf->dev, "unlink retry\n"); 1089 goto retry; 1090 } 1091 } else 1092 usb_kill_urb (urb); 1093 if (!(retval == 0 || retval == -EINPROGRESS)) { 1094 dev_dbg (&dev->intf->dev, "unlink fail %d\n", retval); 1095 return retval; 1096 } 1097 1098 wait_for_completion (&completion); 1099 retval = urb->status; 1100 simple_free_urb (urb); 1101 1102 if (async) 1103 return (retval == -ECONNRESET) ? 0 : retval - 1000; 1104 else 1105 return (retval == -ENOENT || retval == -EPERM) ? 1106 0 : retval - 2000; 1107 } 1108 1109 static int unlink_simple (struct usbtest_dev *dev, int pipe, int len) 1110 { 1111 int retval = 0; 1112 1113 /* test sync and async paths */ 1114 retval = unlink1 (dev, pipe, len, 1); 1115 if (!retval) 1116 retval = unlink1 (dev, pipe, len, 0); 1117 return retval; 1118 } 1119 1120 /*-------------------------------------------------------------------------*/ 1121 1122 static int verify_not_halted (int ep, struct urb *urb) 1123 { 1124 int retval; 1125 u16 status; 1126 1127 /* shouldn't look or act halted */ 1128 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1129 if (retval < 0) { 1130 dbg ("ep %02x couldn't get no-halt status, %d", ep, retval); 1131 return retval; 1132 } 1133 if (status != 0) { 1134 dbg ("ep %02x bogus status: %04x != 0", ep, status); 1135 return -EINVAL; 1136 } 1137 retval = simple_io (urb, 1, 0, 0, __FUNCTION__); 1138 if (retval != 0) 1139 return -EINVAL; 1140 return 0; 1141 } 1142 1143 static int verify_halted (int ep, struct urb *urb) 1144 { 1145 int retval; 1146 u16 status; 1147 1148 /* should look and act halted */ 1149 retval = usb_get_status (urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1150 if (retval < 0) { 1151 dbg ("ep %02x couldn't get halt status, %d", ep, retval); 1152 return retval; 1153 } 1154 if (status != 1) { 1155 dbg ("ep %02x bogus status: %04x != 1", ep, status); 1156 return -EINVAL; 1157 } 1158 retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__); 1159 if (retval != -EPIPE) 1160 return -EINVAL; 1161 retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted"); 1162 if (retval != -EPIPE) 1163 return -EINVAL; 1164 return 0; 1165 } 1166 1167 static int test_halt (int ep, struct urb *urb) 1168 { 1169 int retval; 1170 1171 /* shouldn't look or act halted now */ 1172 retval = verify_not_halted (ep, urb); 1173 if (retval < 0) 1174 return retval; 1175 1176 /* set halt (protocol test only), verify it worked */ 1177 retval = usb_control_msg (urb->dev, usb_sndctrlpipe (urb->dev, 0), 1178 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, 1179 USB_ENDPOINT_HALT, ep, 1180 NULL, 0, USB_CTRL_SET_TIMEOUT); 1181 if (retval < 0) { 1182 dbg ("ep %02x couldn't set halt, %d", ep, retval); 1183 return retval; 1184 } 1185 retval = verify_halted (ep, urb); 1186 if (retval < 0) 1187 return retval; 1188 1189 /* clear halt (tests API + protocol), verify it worked */ 1190 retval = usb_clear_halt (urb->dev, urb->pipe); 1191 if (retval < 0) { 1192 dbg ("ep %02x couldn't clear halt, %d", ep, retval); 1193 return retval; 1194 } 1195 retval = verify_not_halted (ep, urb); 1196 if (retval < 0) 1197 return retval; 1198 1199 /* NOTE: could also verify SET_INTERFACE clear halts ... */ 1200 1201 return 0; 1202 } 1203 1204 static int halt_simple (struct usbtest_dev *dev) 1205 { 1206 int ep; 1207 int retval = 0; 1208 struct urb *urb; 1209 1210 urb = simple_alloc_urb (testdev_to_usbdev (dev), 0, 512); 1211 if (urb == NULL) 1212 return -ENOMEM; 1213 1214 if (dev->in_pipe) { 1215 ep = usb_pipeendpoint (dev->in_pipe) | USB_DIR_IN; 1216 urb->pipe = dev->in_pipe; 1217 retval = test_halt (ep, urb); 1218 if (retval < 0) 1219 goto done; 1220 } 1221 1222 if (dev->out_pipe) { 1223 ep = usb_pipeendpoint (dev->out_pipe); 1224 urb->pipe = dev->out_pipe; 1225 retval = test_halt (ep, urb); 1226 } 1227 done: 1228 simple_free_urb (urb); 1229 return retval; 1230 } 1231 1232 /*-------------------------------------------------------------------------*/ 1233 1234 /* Control OUT tests use the vendor control requests from Intel's 1235 * USB 2.0 compliance test device: write a buffer, read it back. 1236 * 1237 * Intel's spec only _requires_ that it work for one packet, which 1238 * is pretty weak. Some HCDs place limits here; most devices will 1239 * need to be able to handle more than one OUT data packet. We'll 1240 * try whatever we're told to try. 1241 */ 1242 static int ctrl_out (struct usbtest_dev *dev, 1243 unsigned count, unsigned length, unsigned vary) 1244 { 1245 unsigned i, j, len, retval; 1246 u8 *buf; 1247 char *what = "?"; 1248 struct usb_device *udev; 1249 1250 if (length < 1 || length > 0xffff || vary >= length) 1251 return -EINVAL; 1252 1253 buf = kmalloc(length, SLAB_KERNEL); 1254 if (!buf) 1255 return -ENOMEM; 1256 1257 udev = testdev_to_usbdev (dev); 1258 len = length; 1259 retval = 0; 1260 1261 /* NOTE: hardware might well act differently if we pushed it 1262 * with lots back-to-back queued requests. 1263 */ 1264 for (i = 0; i < count; i++) { 1265 /* write patterned data */ 1266 for (j = 0; j < len; j++) 1267 buf [j] = i + j; 1268 retval = usb_control_msg (udev, usb_sndctrlpipe (udev,0), 1269 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, 1270 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); 1271 if (retval != len) { 1272 what = "write"; 1273 if (retval >= 0) { 1274 INFO(dev, "ctrl_out, wlen %d (expected %d)\n", 1275 retval, len); 1276 retval = -EBADMSG; 1277 } 1278 break; 1279 } 1280 1281 /* read it back -- assuming nothing intervened!! */ 1282 retval = usb_control_msg (udev, usb_rcvctrlpipe (udev,0), 1283 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, 1284 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); 1285 if (retval != len) { 1286 what = "read"; 1287 if (retval >= 0) { 1288 INFO(dev, "ctrl_out, rlen %d (expected %d)\n", 1289 retval, len); 1290 retval = -EBADMSG; 1291 } 1292 break; 1293 } 1294 1295 /* fail if we can't verify */ 1296 for (j = 0; j < len; j++) { 1297 if (buf [j] != (u8) (i + j)) { 1298 INFO (dev, "ctrl_out, byte %d is %d not %d\n", 1299 j, buf [j], (u8) i + j); 1300 retval = -EBADMSG; 1301 break; 1302 } 1303 } 1304 if (retval < 0) { 1305 what = "verify"; 1306 break; 1307 } 1308 1309 len += vary; 1310 1311 /* [real world] the "zero bytes IN" case isn't really used. 1312 * hardware can easily trip up in this wierd case, since its 1313 * status stage is IN, not OUT like other ep0in transfers. 1314 */ 1315 if (len > length) 1316 len = realworld ? 1 : 0; 1317 } 1318 1319 if (retval < 0) 1320 INFO (dev, "ctrl_out %s failed, code %d, count %d\n", 1321 what, retval, i); 1322 1323 kfree (buf); 1324 return retval; 1325 } 1326 1327 /*-------------------------------------------------------------------------*/ 1328 1329 /* ISO tests ... mimics common usage 1330 * - buffer length is split into N packets (mostly maxpacket sized) 1331 * - multi-buffers according to sglen 1332 */ 1333 1334 struct iso_context { 1335 unsigned count; 1336 unsigned pending; 1337 spinlock_t lock; 1338 struct completion done; 1339 int submit_error; 1340 unsigned long errors; 1341 unsigned long packet_count; 1342 struct usbtest_dev *dev; 1343 }; 1344 1345 static void iso_callback (struct urb *urb, struct pt_regs *regs) 1346 { 1347 struct iso_context *ctx = urb->context; 1348 1349 spin_lock(&ctx->lock); 1350 ctx->count--; 1351 1352 ctx->packet_count += urb->number_of_packets; 1353 if (urb->error_count > 0) 1354 ctx->errors += urb->error_count; 1355 else if (urb->status != 0) 1356 ctx->errors += urb->number_of_packets; 1357 1358 if (urb->status == 0 && ctx->count > (ctx->pending - 1) 1359 && !ctx->submit_error) { 1360 int status = usb_submit_urb (urb, GFP_ATOMIC); 1361 switch (status) { 1362 case 0: 1363 goto done; 1364 default: 1365 dev_dbg (&ctx->dev->intf->dev, 1366 "iso resubmit err %d\n", 1367 status); 1368 /* FALLTHROUGH */ 1369 case -ENODEV: /* disconnected */ 1370 case -ESHUTDOWN: /* endpoint disabled */ 1371 ctx->submit_error = 1; 1372 break; 1373 } 1374 } 1375 simple_free_urb (urb); 1376 1377 ctx->pending--; 1378 if (ctx->pending == 0) { 1379 if (ctx->errors) 1380 dev_dbg (&ctx->dev->intf->dev, 1381 "iso test, %lu errors out of %lu\n", 1382 ctx->errors, ctx->packet_count); 1383 complete (&ctx->done); 1384 } 1385 done: 1386 spin_unlock(&ctx->lock); 1387 } 1388 1389 static struct urb *iso_alloc_urb ( 1390 struct usb_device *udev, 1391 int pipe, 1392 struct usb_endpoint_descriptor *desc, 1393 long bytes 1394 ) 1395 { 1396 struct urb *urb; 1397 unsigned i, maxp, packets; 1398 1399 if (bytes < 0 || !desc) 1400 return NULL; 1401 maxp = 0x7ff & le16_to_cpu(desc->wMaxPacketSize); 1402 maxp *= 1 + (0x3 & (le16_to_cpu(desc->wMaxPacketSize) >> 11)); 1403 packets = (bytes + maxp - 1) / maxp; 1404 1405 urb = usb_alloc_urb (packets, SLAB_KERNEL); 1406 if (!urb) 1407 return urb; 1408 urb->dev = udev; 1409 urb->pipe = pipe; 1410 1411 urb->number_of_packets = packets; 1412 urb->transfer_buffer_length = bytes; 1413 urb->transfer_buffer = usb_buffer_alloc (udev, bytes, SLAB_KERNEL, 1414 &urb->transfer_dma); 1415 if (!urb->transfer_buffer) { 1416 usb_free_urb (urb); 1417 return NULL; 1418 } 1419 memset (urb->transfer_buffer, 0, bytes); 1420 for (i = 0; i < packets; i++) { 1421 /* here, only the last packet will be short */ 1422 urb->iso_frame_desc[i].length = min ((unsigned) bytes, maxp); 1423 bytes -= urb->iso_frame_desc[i].length; 1424 1425 urb->iso_frame_desc[i].offset = maxp * i; 1426 } 1427 1428 urb->complete = iso_callback; 1429 // urb->context = SET BY CALLER 1430 urb->interval = 1 << (desc->bInterval - 1); 1431 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 1432 return urb; 1433 } 1434 1435 static int 1436 test_iso_queue (struct usbtest_dev *dev, struct usbtest_param *param, 1437 int pipe, struct usb_endpoint_descriptor *desc) 1438 { 1439 struct iso_context context; 1440 struct usb_device *udev; 1441 unsigned i; 1442 unsigned long packets = 0; 1443 int status = 0; 1444 struct urb *urbs[10]; /* FIXME no limit */ 1445 1446 if (param->sglen > 10) 1447 return -EDOM; 1448 1449 memset(&context, 0, sizeof context); 1450 context.count = param->iterations * param->sglen; 1451 context.dev = dev; 1452 init_completion (&context.done); 1453 spin_lock_init (&context.lock); 1454 1455 memset (urbs, 0, sizeof urbs); 1456 udev = testdev_to_usbdev (dev); 1457 dev_dbg (&dev->intf->dev, 1458 "... iso period %d %sframes, wMaxPacket %04x\n", 1459 1 << (desc->bInterval - 1), 1460 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1461 le16_to_cpu(desc->wMaxPacketSize)); 1462 1463 for (i = 0; i < param->sglen; i++) { 1464 urbs [i] = iso_alloc_urb (udev, pipe, desc, 1465 param->length); 1466 if (!urbs [i]) { 1467 status = -ENOMEM; 1468 goto fail; 1469 } 1470 packets += urbs[i]->number_of_packets; 1471 urbs [i]->context = &context; 1472 } 1473 packets *= param->iterations; 1474 dev_dbg (&dev->intf->dev, 1475 "... total %lu msec (%lu packets)\n", 1476 (packets * (1 << (desc->bInterval - 1))) 1477 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1478 packets); 1479 1480 spin_lock_irq (&context.lock); 1481 for (i = 0; i < param->sglen; i++) { 1482 ++context.pending; 1483 status = usb_submit_urb (urbs [i], SLAB_ATOMIC); 1484 if (status < 0) { 1485 ERROR (dev, "submit iso[%d], error %d\n", i, status); 1486 if (i == 0) { 1487 spin_unlock_irq (&context.lock); 1488 goto fail; 1489 } 1490 1491 simple_free_urb (urbs [i]); 1492 context.pending--; 1493 context.submit_error = 1; 1494 break; 1495 } 1496 } 1497 spin_unlock_irq (&context.lock); 1498 1499 wait_for_completion (&context.done); 1500 1501 /* 1502 * Isochronous transfers are expected to fail sometimes. As an 1503 * arbitrary limit, we will report an error if any submissions 1504 * fail or if the transfer failure rate is > 10%. 1505 */ 1506 if (status != 0) 1507 ; 1508 else if (context.submit_error) 1509 status = -EACCES; 1510 else if (context.errors > context.packet_count / 10) 1511 status = -EIO; 1512 return status; 1513 1514 fail: 1515 for (i = 0; i < param->sglen; i++) { 1516 if (urbs [i]) 1517 simple_free_urb (urbs [i]); 1518 } 1519 return status; 1520 } 1521 1522 /*-------------------------------------------------------------------------*/ 1523 1524 /* We only have this one interface to user space, through usbfs. 1525 * User mode code can scan usbfs to find N different devices (maybe on 1526 * different busses) to use when testing, and allocate one thread per 1527 * test. So discovery is simplified, and we have no device naming issues. 1528 * 1529 * Don't use these only as stress/load tests. Use them along with with 1530 * other USB bus activity: plugging, unplugging, mousing, mp3 playback, 1531 * video capture, and so on. Run different tests at different times, in 1532 * different sequences. Nothing here should interact with other devices, 1533 * except indirectly by consuming USB bandwidth and CPU resources for test 1534 * threads and request completion. But the only way to know that for sure 1535 * is to test when HC queues are in use by many devices. 1536 */ 1537 1538 static int 1539 usbtest_ioctl (struct usb_interface *intf, unsigned int code, void *buf) 1540 { 1541 struct usbtest_dev *dev = usb_get_intfdata (intf); 1542 struct usb_device *udev = testdev_to_usbdev (dev); 1543 struct usbtest_param *param = buf; 1544 int retval = -EOPNOTSUPP; 1545 struct urb *urb; 1546 struct scatterlist *sg; 1547 struct usb_sg_request req; 1548 struct timeval start; 1549 unsigned i; 1550 1551 // FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. 1552 1553 if (code != USBTEST_REQUEST) 1554 return -EOPNOTSUPP; 1555 1556 if (param->iterations <= 0 || param->length < 0 1557 || param->sglen < 0 || param->vary < 0) 1558 return -EINVAL; 1559 1560 if (down_interruptible (&dev->sem)) 1561 return -ERESTARTSYS; 1562 1563 if (intf->dev.power.power_state.event != PM_EVENT_ON) { 1564 up (&dev->sem); 1565 return -EHOSTUNREACH; 1566 } 1567 1568 /* some devices, like ez-usb default devices, need a non-default 1569 * altsetting to have any active endpoints. some tests change 1570 * altsettings; force a default so most tests don't need to check. 1571 */ 1572 if (dev->info->alt >= 0) { 1573 int res; 1574 1575 if (intf->altsetting->desc.bInterfaceNumber) { 1576 up (&dev->sem); 1577 return -ENODEV; 1578 } 1579 res = set_altsetting (dev, dev->info->alt); 1580 if (res) { 1581 dev_err (&intf->dev, 1582 "set altsetting to %d failed, %d\n", 1583 dev->info->alt, res); 1584 up (&dev->sem); 1585 return res; 1586 } 1587 } 1588 1589 /* 1590 * Just a bunch of test cases that every HCD is expected to handle. 1591 * 1592 * Some may need specific firmware, though it'd be good to have 1593 * one firmware image to handle all the test cases. 1594 * 1595 * FIXME add more tests! cancel requests, verify the data, control 1596 * queueing, concurrent read+write threads, and so on. 1597 */ 1598 do_gettimeofday (&start); 1599 switch (param->test_num) { 1600 1601 case 0: 1602 dev_dbg (&intf->dev, "TEST 0: NOP\n"); 1603 retval = 0; 1604 break; 1605 1606 /* Simple non-queued bulk I/O tests */ 1607 case 1: 1608 if (dev->out_pipe == 0) 1609 break; 1610 dev_dbg (&intf->dev, 1611 "TEST 1: write %d bytes %u times\n", 1612 param->length, param->iterations); 1613 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1614 if (!urb) { 1615 retval = -ENOMEM; 1616 break; 1617 } 1618 // FIRMWARE: bulk sink (maybe accepts short writes) 1619 retval = simple_io (urb, param->iterations, 0, 0, "test1"); 1620 simple_free_urb (urb); 1621 break; 1622 case 2: 1623 if (dev->in_pipe == 0) 1624 break; 1625 dev_dbg (&intf->dev, 1626 "TEST 2: read %d bytes %u times\n", 1627 param->length, param->iterations); 1628 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1629 if (!urb) { 1630 retval = -ENOMEM; 1631 break; 1632 } 1633 // FIRMWARE: bulk source (maybe generates short writes) 1634 retval = simple_io (urb, param->iterations, 0, 0, "test2"); 1635 simple_free_urb (urb); 1636 break; 1637 case 3: 1638 if (dev->out_pipe == 0 || param->vary == 0) 1639 break; 1640 dev_dbg (&intf->dev, 1641 "TEST 3: write/%d 0..%d bytes %u times\n", 1642 param->vary, param->length, param->iterations); 1643 urb = simple_alloc_urb (udev, dev->out_pipe, param->length); 1644 if (!urb) { 1645 retval = -ENOMEM; 1646 break; 1647 } 1648 // FIRMWARE: bulk sink (maybe accepts short writes) 1649 retval = simple_io (urb, param->iterations, param->vary, 1650 0, "test3"); 1651 simple_free_urb (urb); 1652 break; 1653 case 4: 1654 if (dev->in_pipe == 0 || param->vary == 0) 1655 break; 1656 dev_dbg (&intf->dev, 1657 "TEST 4: read/%d 0..%d bytes %u times\n", 1658 param->vary, param->length, param->iterations); 1659 urb = simple_alloc_urb (udev, dev->in_pipe, param->length); 1660 if (!urb) { 1661 retval = -ENOMEM; 1662 break; 1663 } 1664 // FIRMWARE: bulk source (maybe generates short writes) 1665 retval = simple_io (urb, param->iterations, param->vary, 1666 0, "test4"); 1667 simple_free_urb (urb); 1668 break; 1669 1670 /* Queued bulk I/O tests */ 1671 case 5: 1672 if (dev->out_pipe == 0 || param->sglen == 0) 1673 break; 1674 dev_dbg (&intf->dev, 1675 "TEST 5: write %d sglists %d entries of %d bytes\n", 1676 param->iterations, 1677 param->sglen, param->length); 1678 sg = alloc_sglist (param->sglen, param->length, 0); 1679 if (!sg) { 1680 retval = -ENOMEM; 1681 break; 1682 } 1683 // FIRMWARE: bulk sink (maybe accepts short writes) 1684 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1685 &req, sg, param->sglen); 1686 free_sglist (sg, param->sglen); 1687 break; 1688 1689 case 6: 1690 if (dev->in_pipe == 0 || param->sglen == 0) 1691 break; 1692 dev_dbg (&intf->dev, 1693 "TEST 6: read %d sglists %d entries of %d bytes\n", 1694 param->iterations, 1695 param->sglen, param->length); 1696 sg = alloc_sglist (param->sglen, param->length, 0); 1697 if (!sg) { 1698 retval = -ENOMEM; 1699 break; 1700 } 1701 // FIRMWARE: bulk source (maybe generates short writes) 1702 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1703 &req, sg, param->sglen); 1704 free_sglist (sg, param->sglen); 1705 break; 1706 case 7: 1707 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 1708 break; 1709 dev_dbg (&intf->dev, 1710 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 1711 param->vary, param->iterations, 1712 param->sglen, param->length); 1713 sg = alloc_sglist (param->sglen, param->length, param->vary); 1714 if (!sg) { 1715 retval = -ENOMEM; 1716 break; 1717 } 1718 // FIRMWARE: bulk sink (maybe accepts short writes) 1719 retval = perform_sglist (udev, param->iterations, dev->out_pipe, 1720 &req, sg, param->sglen); 1721 free_sglist (sg, param->sglen); 1722 break; 1723 case 8: 1724 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 1725 break; 1726 dev_dbg (&intf->dev, 1727 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 1728 param->vary, param->iterations, 1729 param->sglen, param->length); 1730 sg = alloc_sglist (param->sglen, param->length, param->vary); 1731 if (!sg) { 1732 retval = -ENOMEM; 1733 break; 1734 } 1735 // FIRMWARE: bulk source (maybe generates short writes) 1736 retval = perform_sglist (udev, param->iterations, dev->in_pipe, 1737 &req, sg, param->sglen); 1738 free_sglist (sg, param->sglen); 1739 break; 1740 1741 /* non-queued sanity tests for control (chapter 9 subset) */ 1742 case 9: 1743 retval = 0; 1744 dev_dbg (&intf->dev, 1745 "TEST 9: ch9 (subset) control tests, %d times\n", 1746 param->iterations); 1747 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1748 retval = ch9_postconfig (dev); 1749 if (retval) 1750 dbg ("ch9 subset failed, iterations left %d", i); 1751 break; 1752 1753 /* queued control messaging */ 1754 case 10: 1755 if (param->sglen == 0) 1756 break; 1757 retval = 0; 1758 dev_dbg (&intf->dev, 1759 "TEST 10: queue %d control calls, %d times\n", 1760 param->sglen, 1761 param->iterations); 1762 retval = test_ctrl_queue (dev, param); 1763 break; 1764 1765 /* simple non-queued unlinks (ring with one urb) */ 1766 case 11: 1767 if (dev->in_pipe == 0 || !param->length) 1768 break; 1769 retval = 0; 1770 dev_dbg (&intf->dev, "TEST 11: unlink %d reads of %d\n", 1771 param->iterations, param->length); 1772 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1773 retval = unlink_simple (dev, dev->in_pipe, 1774 param->length); 1775 if (retval) 1776 dev_dbg (&intf->dev, "unlink reads failed %d, " 1777 "iterations left %d\n", retval, i); 1778 break; 1779 case 12: 1780 if (dev->out_pipe == 0 || !param->length) 1781 break; 1782 retval = 0; 1783 dev_dbg (&intf->dev, "TEST 12: unlink %d writes of %d\n", 1784 param->iterations, param->length); 1785 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1786 retval = unlink_simple (dev, dev->out_pipe, 1787 param->length); 1788 if (retval) 1789 dev_dbg (&intf->dev, "unlink writes failed %d, " 1790 "iterations left %d\n", retval, i); 1791 break; 1792 1793 /* ep halt tests */ 1794 case 13: 1795 if (dev->out_pipe == 0 && dev->in_pipe == 0) 1796 break; 1797 retval = 0; 1798 dev_dbg (&intf->dev, "TEST 13: set/clear %d halts\n", 1799 param->iterations); 1800 for (i = param->iterations; retval == 0 && i--; /* NOP */) 1801 retval = halt_simple (dev); 1802 1803 if (retval) 1804 DBG (dev, "halts failed, iterations left %d\n", i); 1805 break; 1806 1807 /* control write tests */ 1808 case 14: 1809 if (!dev->info->ctrl_out) 1810 break; 1811 dev_dbg (&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 1812 param->iterations, 1813 realworld ? 1 : 0, param->length, 1814 param->vary); 1815 retval = ctrl_out (dev, param->iterations, 1816 param->length, param->vary); 1817 break; 1818 1819 /* iso write tests */ 1820 case 15: 1821 if (dev->out_iso_pipe == 0 || param->sglen == 0) 1822 break; 1823 dev_dbg (&intf->dev, 1824 "TEST 15: write %d iso, %d entries of %d bytes\n", 1825 param->iterations, 1826 param->sglen, param->length); 1827 // FIRMWARE: iso sink 1828 retval = test_iso_queue (dev, param, 1829 dev->out_iso_pipe, dev->iso_out); 1830 break; 1831 1832 /* iso read tests */ 1833 case 16: 1834 if (dev->in_iso_pipe == 0 || param->sglen == 0) 1835 break; 1836 dev_dbg (&intf->dev, 1837 "TEST 16: read %d iso, %d entries of %d bytes\n", 1838 param->iterations, 1839 param->sglen, param->length); 1840 // FIRMWARE: iso source 1841 retval = test_iso_queue (dev, param, 1842 dev->in_iso_pipe, dev->iso_in); 1843 break; 1844 1845 // FIXME unlink from queue (ring with N urbs) 1846 1847 // FIXME scatterlist cancel (needs helper thread) 1848 1849 } 1850 do_gettimeofday (¶m->duration); 1851 param->duration.tv_sec -= start.tv_sec; 1852 param->duration.tv_usec -= start.tv_usec; 1853 if (param->duration.tv_usec < 0) { 1854 param->duration.tv_usec += 1000 * 1000; 1855 param->duration.tv_sec -= 1; 1856 } 1857 up (&dev->sem); 1858 return retval; 1859 } 1860 1861 /*-------------------------------------------------------------------------*/ 1862 1863 static unsigned force_interrupt = 0; 1864 module_param (force_interrupt, uint, 0); 1865 MODULE_PARM_DESC (force_interrupt, "0 = test default; else interrupt"); 1866 1867 #ifdef GENERIC 1868 static unsigned short vendor; 1869 module_param(vendor, ushort, 0); 1870 MODULE_PARM_DESC (vendor, "vendor code (from usb-if)"); 1871 1872 static unsigned short product; 1873 module_param(product, ushort, 0); 1874 MODULE_PARM_DESC (product, "product code (from vendor)"); 1875 #endif 1876 1877 static int 1878 usbtest_probe (struct usb_interface *intf, const struct usb_device_id *id) 1879 { 1880 struct usb_device *udev; 1881 struct usbtest_dev *dev; 1882 struct usbtest_info *info; 1883 char *rtest, *wtest; 1884 char *irtest, *iwtest; 1885 1886 udev = interface_to_usbdev (intf); 1887 1888 #ifdef GENERIC 1889 /* specify devices by module parameters? */ 1890 if (id->match_flags == 0) { 1891 /* vendor match required, product match optional */ 1892 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) 1893 return -ENODEV; 1894 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 1895 return -ENODEV; 1896 dbg ("matched module params, vend=0x%04x prod=0x%04x", 1897 le16_to_cpu(udev->descriptor.idVendor), 1898 le16_to_cpu(udev->descriptor.idProduct)); 1899 } 1900 #endif 1901 1902 dev = kzalloc(sizeof(*dev), SLAB_KERNEL); 1903 if (!dev) 1904 return -ENOMEM; 1905 info = (struct usbtest_info *) id->driver_info; 1906 dev->info = info; 1907 init_MUTEX (&dev->sem); 1908 1909 dev->intf = intf; 1910 1911 /* cacheline-aligned scratch for i/o */ 1912 if ((dev->buf = kmalloc (TBUF_SIZE, SLAB_KERNEL)) == NULL) { 1913 kfree (dev); 1914 return -ENOMEM; 1915 } 1916 1917 /* NOTE this doesn't yet test the handful of difference that are 1918 * visible with high speed interrupts: bigger maxpacket (1K) and 1919 * "high bandwidth" modes (up to 3 packets/uframe). 1920 */ 1921 rtest = wtest = ""; 1922 irtest = iwtest = ""; 1923 if (force_interrupt || udev->speed == USB_SPEED_LOW) { 1924 if (info->ep_in) { 1925 dev->in_pipe = usb_rcvintpipe (udev, info->ep_in); 1926 rtest = " intr-in"; 1927 } 1928 if (info->ep_out) { 1929 dev->out_pipe = usb_sndintpipe (udev, info->ep_out); 1930 wtest = " intr-out"; 1931 } 1932 } else { 1933 if (info->autoconf) { 1934 int status; 1935 1936 status = get_endpoints (dev, intf); 1937 if (status < 0) { 1938 dbg ("couldn't get endpoints, %d\n", status); 1939 return status; 1940 } 1941 /* may find bulk or ISO pipes */ 1942 } else { 1943 if (info->ep_in) 1944 dev->in_pipe = usb_rcvbulkpipe (udev, 1945 info->ep_in); 1946 if (info->ep_out) 1947 dev->out_pipe = usb_sndbulkpipe (udev, 1948 info->ep_out); 1949 } 1950 if (dev->in_pipe) 1951 rtest = " bulk-in"; 1952 if (dev->out_pipe) 1953 wtest = " bulk-out"; 1954 if (dev->in_iso_pipe) 1955 irtest = " iso-in"; 1956 if (dev->out_iso_pipe) 1957 iwtest = " iso-out"; 1958 } 1959 1960 usb_set_intfdata (intf, dev); 1961 dev_info (&intf->dev, "%s\n", info->name); 1962 dev_info (&intf->dev, "%s speed {control%s%s%s%s%s} tests%s\n", 1963 ({ char *tmp; 1964 switch (udev->speed) { 1965 case USB_SPEED_LOW: tmp = "low"; break; 1966 case USB_SPEED_FULL: tmp = "full"; break; 1967 case USB_SPEED_HIGH: tmp = "high"; break; 1968 default: tmp = "unknown"; break; 1969 }; tmp; }), 1970 info->ctrl_out ? " in/out" : "", 1971 rtest, wtest, 1972 irtest, iwtest, 1973 info->alt >= 0 ? " (+alt)" : ""); 1974 return 0; 1975 } 1976 1977 static int usbtest_suspend (struct usb_interface *intf, pm_message_t message) 1978 { 1979 return 0; 1980 } 1981 1982 static int usbtest_resume (struct usb_interface *intf) 1983 { 1984 return 0; 1985 } 1986 1987 1988 static void usbtest_disconnect (struct usb_interface *intf) 1989 { 1990 struct usbtest_dev *dev = usb_get_intfdata (intf); 1991 1992 down (&dev->sem); 1993 1994 usb_set_intfdata (intf, NULL); 1995 dev_dbg (&intf->dev, "disconnect\n"); 1996 kfree (dev); 1997 } 1998 1999 /* Basic testing only needs a device that can source or sink bulk traffic. 2000 * Any device can test control transfers (default with GENERIC binding). 2001 * 2002 * Several entries work with the default EP0 implementation that's built 2003 * into EZ-USB chips. There's a default vendor ID which can be overridden 2004 * by (very) small config EEPROMS, but otherwise all these devices act 2005 * identically until firmware is loaded: only EP0 works. It turns out 2006 * to be easy to make other endpoints work, without modifying that EP0 2007 * behavior. For now, we expect that kind of firmware. 2008 */ 2009 2010 /* an21xx or fx versions of ez-usb */ 2011 static struct usbtest_info ez1_info = { 2012 .name = "EZ-USB device", 2013 .ep_in = 2, 2014 .ep_out = 2, 2015 .alt = 1, 2016 }; 2017 2018 /* fx2 version of ez-usb */ 2019 static struct usbtest_info ez2_info = { 2020 .name = "FX2 device", 2021 .ep_in = 6, 2022 .ep_out = 2, 2023 .alt = 1, 2024 }; 2025 2026 /* ezusb family device with dedicated usb test firmware, 2027 */ 2028 static struct usbtest_info fw_info = { 2029 .name = "usb test device", 2030 .ep_in = 2, 2031 .ep_out = 2, 2032 .alt = 1, 2033 .autoconf = 1, // iso and ctrl_out need autoconf 2034 .ctrl_out = 1, 2035 .iso = 1, // iso_ep's are #8 in/out 2036 }; 2037 2038 /* peripheral running Linux and 'zero.c' test firmware, or 2039 * its user-mode cousin. different versions of this use 2040 * different hardware with the same vendor/product codes. 2041 * host side MUST rely on the endpoint descriptors. 2042 */ 2043 static struct usbtest_info gz_info = { 2044 .name = "Linux gadget zero", 2045 .autoconf = 1, 2046 .ctrl_out = 1, 2047 .alt = 0, 2048 }; 2049 2050 static struct usbtest_info um_info = { 2051 .name = "Linux user mode test driver", 2052 .autoconf = 1, 2053 .alt = -1, 2054 }; 2055 2056 static struct usbtest_info um2_info = { 2057 .name = "Linux user mode ISO test driver", 2058 .autoconf = 1, 2059 .iso = 1, 2060 .alt = -1, 2061 }; 2062 2063 #ifdef IBOT2 2064 /* this is a nice source of high speed bulk data; 2065 * uses an FX2, with firmware provided in the device 2066 */ 2067 static struct usbtest_info ibot2_info = { 2068 .name = "iBOT2 webcam", 2069 .ep_in = 2, 2070 .alt = -1, 2071 }; 2072 #endif 2073 2074 #ifdef GENERIC 2075 /* we can use any device to test control traffic */ 2076 static struct usbtest_info generic_info = { 2077 .name = "Generic USB device", 2078 .alt = -1, 2079 }; 2080 #endif 2081 2082 // FIXME remove this 2083 static struct usbtest_info hact_info = { 2084 .name = "FX2/hact", 2085 //.ep_in = 6, 2086 .ep_out = 2, 2087 .alt = -1, 2088 }; 2089 2090 2091 static struct usb_device_id id_table [] = { 2092 2093 { USB_DEVICE (0x0547, 0x1002), 2094 .driver_info = (unsigned long) &hact_info, 2095 }, 2096 2097 /*-------------------------------------------------------------*/ 2098 2099 /* EZ-USB devices which download firmware to replace (or in our 2100 * case augment) the default device implementation. 2101 */ 2102 2103 /* generic EZ-USB FX controller */ 2104 { USB_DEVICE (0x0547, 0x2235), 2105 .driver_info = (unsigned long) &ez1_info, 2106 }, 2107 2108 /* CY3671 development board with EZ-USB FX */ 2109 { USB_DEVICE (0x0547, 0x0080), 2110 .driver_info = (unsigned long) &ez1_info, 2111 }, 2112 2113 /* generic EZ-USB FX2 controller (or development board) */ 2114 { USB_DEVICE (0x04b4, 0x8613), 2115 .driver_info = (unsigned long) &ez2_info, 2116 }, 2117 2118 /* re-enumerated usb test device firmware */ 2119 { USB_DEVICE (0xfff0, 0xfff0), 2120 .driver_info = (unsigned long) &fw_info, 2121 }, 2122 2123 /* "Gadget Zero" firmware runs under Linux */ 2124 { USB_DEVICE (0x0525, 0xa4a0), 2125 .driver_info = (unsigned long) &gz_info, 2126 }, 2127 2128 /* so does a user-mode variant */ 2129 { USB_DEVICE (0x0525, 0xa4a4), 2130 .driver_info = (unsigned long) &um_info, 2131 }, 2132 2133 /* ... and a user-mode variant that talks iso */ 2134 { USB_DEVICE (0x0525, 0xa4a3), 2135 .driver_info = (unsigned long) &um2_info, 2136 }, 2137 2138 #ifdef KEYSPAN_19Qi 2139 /* Keyspan 19qi uses an21xx (original EZ-USB) */ 2140 // this does not coexist with the real Keyspan 19qi driver! 2141 { USB_DEVICE (0x06cd, 0x010b), 2142 .driver_info = (unsigned long) &ez1_info, 2143 }, 2144 #endif 2145 2146 /*-------------------------------------------------------------*/ 2147 2148 #ifdef IBOT2 2149 /* iBOT2 makes a nice source of high speed bulk-in data */ 2150 // this does not coexist with a real iBOT2 driver! 2151 { USB_DEVICE (0x0b62, 0x0059), 2152 .driver_info = (unsigned long) &ibot2_info, 2153 }, 2154 #endif 2155 2156 /*-------------------------------------------------------------*/ 2157 2158 #ifdef GENERIC 2159 /* module params can specify devices to use for control tests */ 2160 { .driver_info = (unsigned long) &generic_info, }, 2161 #endif 2162 2163 /*-------------------------------------------------------------*/ 2164 2165 { } 2166 }; 2167 MODULE_DEVICE_TABLE (usb, id_table); 2168 2169 static struct usb_driver usbtest_driver = { 2170 .name = "usbtest", 2171 .id_table = id_table, 2172 .probe = usbtest_probe, 2173 .ioctl = usbtest_ioctl, 2174 .disconnect = usbtest_disconnect, 2175 .suspend = usbtest_suspend, 2176 .resume = usbtest_resume, 2177 }; 2178 2179 /*-------------------------------------------------------------------------*/ 2180 2181 static int __init usbtest_init (void) 2182 { 2183 #ifdef GENERIC 2184 if (vendor) 2185 dbg ("params: vend=0x%04x prod=0x%04x", vendor, product); 2186 #endif 2187 return usb_register (&usbtest_driver); 2188 } 2189 module_init (usbtest_init); 2190 2191 static void __exit usbtest_exit (void) 2192 { 2193 usb_deregister (&usbtest_driver); 2194 } 2195 module_exit (usbtest_exit); 2196 2197 MODULE_DESCRIPTION ("USB Core/HCD Testing Driver"); 2198 MODULE_LICENSE ("GPL"); 2199 2200