1#include <linux/kernel.h> 2#include <linux/errno.h> 3#include <linux/init.h> 4#include <linux/slab.h> 5#include <linux/mm.h> 6#include <linux/module.h> 7#include <linux/moduleparam.h> 8#include <linux/scatterlist.h> 9#include <linux/mutex.h> 10#include <linux/timer.h> 11#include <linux/usb.h> 12 13#define SIMPLE_IO_TIMEOUT 10000 /* in milliseconds */ 14 15/*-------------------------------------------------------------------------*/ 16 17static int override_alt = -1; 18module_param_named(alt, override_alt, int, 0644); 19MODULE_PARM_DESC(alt, ">= 0 to override altsetting selection"); 20 21/*-------------------------------------------------------------------------*/ 22 23/* FIXME make these public somewhere; usbdevfs.h? */ 24struct usbtest_param { 25 /* inputs */ 26 unsigned test_num; /* 0..(TEST_CASES-1) */ 27 unsigned iterations; 28 unsigned length; 29 unsigned vary; 30 unsigned sglen; 31 32 /* outputs */ 33 struct timeval duration; 34}; 35#define USBTEST_REQUEST _IOWR('U', 100, struct usbtest_param) 36 37/*-------------------------------------------------------------------------*/ 38 39#define GENERIC /* let probe() bind using module params */ 40 41/* Some devices that can be used for testing will have "real" drivers. 42 * Entries for those need to be enabled here by hand, after disabling 43 * that "real" driver. 44 */ 45//#define IBOT2 /* grab iBOT2 webcams */ 46//#define KEYSPAN_19Qi /* grab un-renumerated serial adapter */ 47 48/*-------------------------------------------------------------------------*/ 49 50struct usbtest_info { 51 const char *name; 52 u8 ep_in; /* bulk/intr source */ 53 u8 ep_out; /* bulk/intr sink */ 54 unsigned autoconf:1; 55 unsigned ctrl_out:1; 56 unsigned iso:1; /* try iso in/out */ 57 unsigned intr:1; /* try interrupt in/out */ 58 int alt; 59}; 60 61/* this is accessed only through usbfs ioctl calls. 62 * one ioctl to issue a test ... one lock per device. 63 * tests create other threads if they need them. 64 * urbs and buffers are allocated dynamically, 65 * and data generated deterministically. 66 */ 67struct usbtest_dev { 68 struct usb_interface *intf; 69 struct usbtest_info *info; 70 int in_pipe; 71 int out_pipe; 72 int in_iso_pipe; 73 int out_iso_pipe; 74 int in_int_pipe; 75 int out_int_pipe; 76 struct usb_endpoint_descriptor *iso_in, *iso_out; 77 struct usb_endpoint_descriptor *int_in, *int_out; 78 struct mutex lock; 79 80#define TBUF_SIZE 256 81 u8 *buf; 82}; 83 84static struct usb_device *testdev_to_usbdev(struct usbtest_dev *test) 85{ 86 return interface_to_usbdev(test->intf); 87} 88 89/* set up all urbs so they can be used with either bulk or interrupt */ 90#define INTERRUPT_RATE 1 /* msec/transfer */ 91 92#define ERROR(tdev, fmt, args...) \ 93 dev_err(&(tdev)->intf->dev , fmt , ## args) 94#define WARNING(tdev, fmt, args...) \ 95 dev_warn(&(tdev)->intf->dev , fmt , ## args) 96 97#define GUARD_BYTE 0xA5 98 99/*-------------------------------------------------------------------------*/ 100 101static int 102get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) 103{ 104 int tmp; 105 struct usb_host_interface *alt; 106 struct usb_host_endpoint *in, *out; 107 struct usb_host_endpoint *iso_in, *iso_out; 108 struct usb_host_endpoint *int_in, *int_out; 109 struct usb_device *udev; 110 111 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { 112 unsigned ep; 113 114 in = out = NULL; 115 iso_in = iso_out = NULL; 116 int_in = int_out = NULL; 117 alt = intf->altsetting + tmp; 118 119 if (override_alt >= 0 && 120 override_alt != alt->desc.bAlternateSetting) 121 continue; 122 123 /* take the first altsetting with in-bulk + out-bulk; 124 * ignore other endpoints and altsettings. 125 */ 126 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { 127 struct usb_host_endpoint *e; 128 129 e = alt->endpoint + ep; 130 switch (usb_endpoint_type(&e->desc)) { 131 case USB_ENDPOINT_XFER_BULK: 132 break; 133 case USB_ENDPOINT_XFER_INT: 134 if (dev->info->intr) 135 goto try_intr; 136 case USB_ENDPOINT_XFER_ISOC: 137 if (dev->info->iso) 138 goto try_iso; 139 /* FALLTHROUGH */ 140 default: 141 continue; 142 } 143 if (usb_endpoint_dir_in(&e->desc)) { 144 if (!in) 145 in = e; 146 } else { 147 if (!out) 148 out = e; 149 } 150 continue; 151try_intr: 152 if (usb_endpoint_dir_in(&e->desc)) { 153 if (!int_in) 154 int_in = e; 155 } else { 156 if (!int_out) 157 int_out = e; 158 } 159 continue; 160try_iso: 161 if (usb_endpoint_dir_in(&e->desc)) { 162 if (!iso_in) 163 iso_in = e; 164 } else { 165 if (!iso_out) 166 iso_out = e; 167 } 168 } 169 if ((in && out) || iso_in || iso_out || int_in || int_out) 170 goto found; 171 } 172 return -EINVAL; 173 174found: 175 udev = testdev_to_usbdev(dev); 176 dev->info->alt = alt->desc.bAlternateSetting; 177 if (alt->desc.bAlternateSetting != 0) { 178 tmp = usb_set_interface(udev, 179 alt->desc.bInterfaceNumber, 180 alt->desc.bAlternateSetting); 181 if (tmp < 0) 182 return tmp; 183 } 184 185 if (in) { 186 dev->in_pipe = usb_rcvbulkpipe(udev, 187 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 188 dev->out_pipe = usb_sndbulkpipe(udev, 189 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); 190 } 191 if (iso_in) { 192 dev->iso_in = &iso_in->desc; 193 dev->in_iso_pipe = usb_rcvisocpipe(udev, 194 iso_in->desc.bEndpointAddress 195 & USB_ENDPOINT_NUMBER_MASK); 196 } 197 198 if (iso_out) { 199 dev->iso_out = &iso_out->desc; 200 dev->out_iso_pipe = usb_sndisocpipe(udev, 201 iso_out->desc.bEndpointAddress 202 & USB_ENDPOINT_NUMBER_MASK); 203 } 204 205 if (int_in) { 206 dev->int_in = &int_in->desc; 207 dev->in_int_pipe = usb_rcvintpipe(udev, 208 int_in->desc.bEndpointAddress 209 & USB_ENDPOINT_NUMBER_MASK); 210 } 211 212 if (int_out) { 213 dev->int_out = &int_out->desc; 214 dev->out_int_pipe = usb_sndintpipe(udev, 215 int_out->desc.bEndpointAddress 216 & USB_ENDPOINT_NUMBER_MASK); 217 } 218 return 0; 219} 220 221/*-------------------------------------------------------------------------*/ 222 223/* Support for testing basic non-queued I/O streams. 224 * 225 * These just package urbs as requests that can be easily canceled. 226 * Each urb's data buffer is dynamically allocated; callers can fill 227 * them with non-zero test data (or test for it) when appropriate. 228 */ 229 230static void simple_callback(struct urb *urb) 231{ 232 complete(urb->context); 233} 234 235static struct urb *usbtest_alloc_urb( 236 struct usb_device *udev, 237 int pipe, 238 unsigned long bytes, 239 unsigned transfer_flags, 240 unsigned offset, 241 u8 bInterval) 242{ 243 struct urb *urb; 244 245 urb = usb_alloc_urb(0, GFP_KERNEL); 246 if (!urb) 247 return urb; 248 249 if (bInterval) 250 usb_fill_int_urb(urb, udev, pipe, NULL, bytes, simple_callback, 251 NULL, bInterval); 252 else 253 usb_fill_bulk_urb(urb, udev, pipe, NULL, bytes, simple_callback, 254 NULL); 255 256 urb->interval = (udev->speed == USB_SPEED_HIGH) 257 ? (INTERRUPT_RATE << 3) 258 : INTERRUPT_RATE; 259 urb->transfer_flags = transfer_flags; 260 if (usb_pipein(pipe)) 261 urb->transfer_flags |= URB_SHORT_NOT_OK; 262 263 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) 264 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset, 265 GFP_KERNEL, &urb->transfer_dma); 266 else 267 urb->transfer_buffer = kmalloc(bytes + offset, GFP_KERNEL); 268 269 if (!urb->transfer_buffer) { 270 usb_free_urb(urb); 271 return NULL; 272 } 273 274 /* To test unaligned transfers add an offset and fill the 275 unused memory with a guard value */ 276 if (offset) { 277 memset(urb->transfer_buffer, GUARD_BYTE, offset); 278 urb->transfer_buffer += offset; 279 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) 280 urb->transfer_dma += offset; 281 } 282 283 /* For inbound transfers use guard byte so that test fails if 284 data not correctly copied */ 285 memset(urb->transfer_buffer, 286 usb_pipein(urb->pipe) ? GUARD_BYTE : 0, 287 bytes); 288 return urb; 289} 290 291static struct urb *simple_alloc_urb( 292 struct usb_device *udev, 293 int pipe, 294 unsigned long bytes, 295 u8 bInterval) 296{ 297 return usbtest_alloc_urb(udev, pipe, bytes, URB_NO_TRANSFER_DMA_MAP, 0, 298 bInterval); 299} 300 301static unsigned pattern; 302static unsigned mod_pattern; 303module_param_named(pattern, mod_pattern, uint, S_IRUGO | S_IWUSR); 304MODULE_PARM_DESC(mod_pattern, "i/o pattern (0 == zeroes)"); 305 306static unsigned get_maxpacket(struct usb_device *udev, int pipe) 307{ 308 struct usb_host_endpoint *ep; 309 310 ep = usb_pipe_endpoint(udev, pipe); 311 return le16_to_cpup(&ep->desc.wMaxPacketSize); 312} 313 314static void simple_fill_buf(struct urb *urb) 315{ 316 unsigned i; 317 u8 *buf = urb->transfer_buffer; 318 unsigned len = urb->transfer_buffer_length; 319 unsigned maxpacket; 320 321 switch (pattern) { 322 default: 323 /* FALLTHROUGH */ 324 case 0: 325 memset(buf, 0, len); 326 break; 327 case 1: /* mod63 */ 328 maxpacket = get_maxpacket(urb->dev, urb->pipe); 329 for (i = 0; i < len; i++) 330 *buf++ = (u8) ((i % maxpacket) % 63); 331 break; 332 } 333} 334 335static inline unsigned long buffer_offset(void *buf) 336{ 337 return (unsigned long)buf & (ARCH_KMALLOC_MINALIGN - 1); 338} 339 340static int check_guard_bytes(struct usbtest_dev *tdev, struct urb *urb) 341{ 342 u8 *buf = urb->transfer_buffer; 343 u8 *guard = buf - buffer_offset(buf); 344 unsigned i; 345 346 for (i = 0; guard < buf; i++, guard++) { 347 if (*guard != GUARD_BYTE) { 348 ERROR(tdev, "guard byte[%d] %d (not %d)\n", 349 i, *guard, GUARD_BYTE); 350 return -EINVAL; 351 } 352 } 353 return 0; 354} 355 356static int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb) 357{ 358 unsigned i; 359 u8 expected; 360 u8 *buf = urb->transfer_buffer; 361 unsigned len = urb->actual_length; 362 unsigned maxpacket = get_maxpacket(urb->dev, urb->pipe); 363 364 int ret = check_guard_bytes(tdev, urb); 365 if (ret) 366 return ret; 367 368 for (i = 0; i < len; i++, buf++) { 369 switch (pattern) { 370 /* all-zeroes has no synchronization issues */ 371 case 0: 372 expected = 0; 373 break; 374 /* mod63 stays in sync with short-terminated transfers, 375 * or otherwise when host and gadget agree on how large 376 * each usb transfer request should be. resync is done 377 * with set_interface or set_config. 378 */ 379 case 1: /* mod63 */ 380 expected = (i % maxpacket) % 63; 381 break; 382 /* always fail unsupported patterns */ 383 default: 384 expected = !*buf; 385 break; 386 } 387 if (*buf == expected) 388 continue; 389 ERROR(tdev, "buf[%d] = %d (not %d)\n", i, *buf, expected); 390 return -EINVAL; 391 } 392 return 0; 393} 394 395static void simple_free_urb(struct urb *urb) 396{ 397 unsigned long offset = buffer_offset(urb->transfer_buffer); 398 399 if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) 400 usb_free_coherent( 401 urb->dev, 402 urb->transfer_buffer_length + offset, 403 urb->transfer_buffer - offset, 404 urb->transfer_dma - offset); 405 else 406 kfree(urb->transfer_buffer - offset); 407 usb_free_urb(urb); 408} 409 410static int simple_io( 411 struct usbtest_dev *tdev, 412 struct urb *urb, 413 int iterations, 414 int vary, 415 int expected, 416 const char *label 417) 418{ 419 struct usb_device *udev = urb->dev; 420 int max = urb->transfer_buffer_length; 421 struct completion completion; 422 int retval = 0; 423 unsigned long expire; 424 425 urb->context = &completion; 426 while (retval == 0 && iterations-- > 0) { 427 init_completion(&completion); 428 if (usb_pipeout(urb->pipe)) { 429 simple_fill_buf(urb); 430 urb->transfer_flags |= URB_ZERO_PACKET; 431 } 432 retval = usb_submit_urb(urb, GFP_KERNEL); 433 if (retval != 0) 434 break; 435 436 expire = msecs_to_jiffies(SIMPLE_IO_TIMEOUT); 437 if (!wait_for_completion_timeout(&completion, expire)) { 438 usb_kill_urb(urb); 439 retval = (urb->status == -ENOENT ? 440 -ETIMEDOUT : urb->status); 441 } else { 442 retval = urb->status; 443 } 444 445 urb->dev = udev; 446 if (retval == 0 && usb_pipein(urb->pipe)) 447 retval = simple_check_buf(tdev, urb); 448 449 if (vary) { 450 int len = urb->transfer_buffer_length; 451 452 len += vary; 453 len %= max; 454 if (len == 0) 455 len = (vary < max) ? vary : max; 456 urb->transfer_buffer_length = len; 457 } 458 459 /* FIXME if endpoint halted, clear halt (and log) */ 460 } 461 urb->transfer_buffer_length = max; 462 463 if (expected != retval) 464 dev_err(&udev->dev, 465 "%s failed, iterations left %d, status %d (not %d)\n", 466 label, iterations, retval, expected); 467 return retval; 468} 469 470 471/*-------------------------------------------------------------------------*/ 472 473/* We use scatterlist primitives to test queued I/O. 474 * Yes, this also tests the scatterlist primitives. 475 */ 476 477static void free_sglist(struct scatterlist *sg, int nents) 478{ 479 unsigned i; 480 481 if (!sg) 482 return; 483 for (i = 0; i < nents; i++) { 484 if (!sg_page(&sg[i])) 485 continue; 486 kfree(sg_virt(&sg[i])); 487 } 488 kfree(sg); 489} 490 491static struct scatterlist * 492alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe) 493{ 494 struct scatterlist *sg; 495 unsigned int n_size = 0; 496 unsigned i; 497 unsigned size = max; 498 unsigned maxpacket = 499 get_maxpacket(interface_to_usbdev(dev->intf), pipe); 500 501 if (max == 0) 502 return NULL; 503 504 sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL); 505 if (!sg) 506 return NULL; 507 sg_init_table(sg, nents); 508 509 for (i = 0; i < nents; i++) { 510 char *buf; 511 unsigned j; 512 513 buf = kzalloc(size, GFP_KERNEL); 514 if (!buf) { 515 free_sglist(sg, i); 516 return NULL; 517 } 518 519 /* kmalloc pages are always physically contiguous! */ 520 sg_set_buf(&sg[i], buf, size); 521 522 switch (pattern) { 523 case 0: 524 /* already zeroed */ 525 break; 526 case 1: 527 for (j = 0; j < size; j++) 528 *buf++ = (u8) (((j + n_size) % maxpacket) % 63); 529 n_size += size; 530 break; 531 } 532 533 if (vary) { 534 size += vary; 535 size %= max; 536 if (size == 0) 537 size = (vary < max) ? vary : max; 538 } 539 } 540 541 return sg; 542} 543 544static void sg_timeout(unsigned long _req) 545{ 546 struct usb_sg_request *req = (struct usb_sg_request *) _req; 547 548 req->status = -ETIMEDOUT; 549 usb_sg_cancel(req); 550} 551 552static int perform_sglist( 553 struct usbtest_dev *tdev, 554 unsigned iterations, 555 int pipe, 556 struct usb_sg_request *req, 557 struct scatterlist *sg, 558 int nents 559) 560{ 561 struct usb_device *udev = testdev_to_usbdev(tdev); 562 int retval = 0; 563 struct timer_list sg_timer; 564 565 setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req); 566 567 while (retval == 0 && iterations-- > 0) { 568 retval = usb_sg_init(req, udev, pipe, 569 (udev->speed == USB_SPEED_HIGH) 570 ? (INTERRUPT_RATE << 3) 571 : INTERRUPT_RATE, 572 sg, nents, 0, GFP_KERNEL); 573 574 if (retval) 575 break; 576 mod_timer(&sg_timer, jiffies + 577 msecs_to_jiffies(SIMPLE_IO_TIMEOUT)); 578 usb_sg_wait(req); 579 del_timer_sync(&sg_timer); 580 retval = req->status; 581 582 /* FIXME check resulting data pattern */ 583 584 /* FIXME if endpoint halted, clear halt (and log) */ 585 } 586 587 /* FIXME for unlink or fault handling tests, don't report 588 * failure if retval is as we expected ... 589 */ 590 if (retval) 591 ERROR(tdev, "perform_sglist failed, " 592 "iterations left %d, status %d\n", 593 iterations, retval); 594 return retval; 595} 596 597 598/*-------------------------------------------------------------------------*/ 599 600/* unqueued control message testing 601 * 602 * there's a nice set of device functional requirements in chapter 9 of the 603 * usb 2.0 spec, which we can apply to ANY device, even ones that don't use 604 * special test firmware. 605 * 606 * we know the device is configured (or suspended) by the time it's visible 607 * through usbfs. we can't change that, so we won't test enumeration (which 608 * worked 'well enough' to get here, this time), power management (ditto), 609 * or remote wakeup (which needs human interaction). 610 */ 611 612static unsigned realworld = 1; 613module_param(realworld, uint, 0); 614MODULE_PARM_DESC(realworld, "clear to demand stricter spec compliance"); 615 616static int get_altsetting(struct usbtest_dev *dev) 617{ 618 struct usb_interface *iface = dev->intf; 619 struct usb_device *udev = interface_to_usbdev(iface); 620 int retval; 621 622 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 623 USB_REQ_GET_INTERFACE, USB_DIR_IN|USB_RECIP_INTERFACE, 624 0, iface->altsetting[0].desc.bInterfaceNumber, 625 dev->buf, 1, USB_CTRL_GET_TIMEOUT); 626 switch (retval) { 627 case 1: 628 return dev->buf[0]; 629 case 0: 630 retval = -ERANGE; 631 /* FALLTHROUGH */ 632 default: 633 return retval; 634 } 635} 636 637static int set_altsetting(struct usbtest_dev *dev, int alternate) 638{ 639 struct usb_interface *iface = dev->intf; 640 struct usb_device *udev; 641 642 if (alternate < 0 || alternate >= 256) 643 return -EINVAL; 644 645 udev = interface_to_usbdev(iface); 646 return usb_set_interface(udev, 647 iface->altsetting[0].desc.bInterfaceNumber, 648 alternate); 649} 650 651static int is_good_config(struct usbtest_dev *tdev, int len) 652{ 653 struct usb_config_descriptor *config; 654 655 if (len < sizeof(*config)) 656 return 0; 657 config = (struct usb_config_descriptor *) tdev->buf; 658 659 switch (config->bDescriptorType) { 660 case USB_DT_CONFIG: 661 case USB_DT_OTHER_SPEED_CONFIG: 662 if (config->bLength != 9) { 663 ERROR(tdev, "bogus config descriptor length\n"); 664 return 0; 665 } 666 /* this bit 'must be 1' but often isn't */ 667 if (!realworld && !(config->bmAttributes & 0x80)) { 668 ERROR(tdev, "high bit of config attributes not set\n"); 669 return 0; 670 } 671 if (config->bmAttributes & 0x1f) { /* reserved == 0 */ 672 ERROR(tdev, "reserved config bits set\n"); 673 return 0; 674 } 675 break; 676 default: 677 return 0; 678 } 679 680 if (le16_to_cpu(config->wTotalLength) == len) /* read it all */ 681 return 1; 682 if (le16_to_cpu(config->wTotalLength) >= TBUF_SIZE) /* max partial read */ 683 return 1; 684 ERROR(tdev, "bogus config descriptor read size\n"); 685 return 0; 686} 687 688static int is_good_ext(struct usbtest_dev *tdev, u8 *buf) 689{ 690 struct usb_ext_cap_descriptor *ext; 691 u32 attr; 692 693 ext = (struct usb_ext_cap_descriptor *) buf; 694 695 if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) { 696 ERROR(tdev, "bogus usb 2.0 extension descriptor length\n"); 697 return 0; 698 } 699 700 attr = le32_to_cpu(ext->bmAttributes); 701 /* bits[1:15] is used and others are reserved */ 702 if (attr & ~0xfffe) { /* reserved == 0 */ 703 ERROR(tdev, "reserved bits set\n"); 704 return 0; 705 } 706 707 return 1; 708} 709 710static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf) 711{ 712 struct usb_ss_cap_descriptor *ss; 713 714 ss = (struct usb_ss_cap_descriptor *) buf; 715 716 if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) { 717 ERROR(tdev, "bogus superspeed device capability descriptor length\n"); 718 return 0; 719 } 720 721 /* 722 * only bit[1] of bmAttributes is used for LTM and others are 723 * reserved 724 */ 725 if (ss->bmAttributes & ~0x02) { /* reserved == 0 */ 726 ERROR(tdev, "reserved bits set in bmAttributes\n"); 727 return 0; 728 } 729 730 /* bits[0:3] of wSpeedSupported is used and others are reserved */ 731 if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */ 732 ERROR(tdev, "reserved bits set in wSpeedSupported\n"); 733 return 0; 734 } 735 736 return 1; 737} 738 739static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf) 740{ 741 struct usb_ss_container_id_descriptor *con_id; 742 743 con_id = (struct usb_ss_container_id_descriptor *) buf; 744 745 if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) { 746 ERROR(tdev, "bogus container id descriptor length\n"); 747 return 0; 748 } 749 750 if (con_id->bReserved) { /* reserved == 0 */ 751 ERROR(tdev, "reserved bits set\n"); 752 return 0; 753 } 754 755 return 1; 756} 757 758/* sanity test for standard requests working with usb_control_mesg() and some 759 * of the utility functions which use it. 760 * 761 * this doesn't test how endpoint halts behave or data toggles get set, since 762 * we won't do I/O to bulk/interrupt endpoints here (which is how to change 763 * halt or toggle). toggle testing is impractical without support from hcds. 764 * 765 * this avoids failing devices linux would normally work with, by not testing 766 * config/altsetting operations for devices that only support their defaults. 767 * such devices rarely support those needless operations. 768 * 769 * NOTE that since this is a sanity test, it's not examining boundary cases 770 * to see if usbcore, hcd, and device all behave right. such testing would 771 * involve varied read sizes and other operation sequences. 772 */ 773static int ch9_postconfig(struct usbtest_dev *dev) 774{ 775 struct usb_interface *iface = dev->intf; 776 struct usb_device *udev = interface_to_usbdev(iface); 777 int i, alt, retval; 778 779 /* [9.2.3] if there's more than one altsetting, we need to be able to 780 * set and get each one. mostly trusts the descriptors from usbcore. 781 */ 782 for (i = 0; i < iface->num_altsetting; i++) { 783 784 /* 9.2.3 constrains the range here */ 785 alt = iface->altsetting[i].desc.bAlternateSetting; 786 if (alt < 0 || alt >= iface->num_altsetting) { 787 dev_err(&iface->dev, 788 "invalid alt [%d].bAltSetting = %d\n", 789 i, alt); 790 } 791 792 /* [real world] get/set unimplemented if there's only one */ 793 if (realworld && iface->num_altsetting == 1) 794 continue; 795 796 /* [9.4.10] set_interface */ 797 retval = set_altsetting(dev, alt); 798 if (retval) { 799 dev_err(&iface->dev, "can't set_interface = %d, %d\n", 800 alt, retval); 801 return retval; 802 } 803 804 /* [9.4.4] get_interface always works */ 805 retval = get_altsetting(dev); 806 if (retval != alt) { 807 dev_err(&iface->dev, "get alt should be %d, was %d\n", 808 alt, retval); 809 return (retval < 0) ? retval : -EDOM; 810 } 811 812 } 813 814 /* [real world] get_config unimplemented if there's only one */ 815 if (!realworld || udev->descriptor.bNumConfigurations != 1) { 816 int expected = udev->actconfig->desc.bConfigurationValue; 817 818 /* [9.4.2] get_configuration always works 819 * ... although some cheap devices (like one TI Hub I've got) 820 * won't return config descriptors except before set_config. 821 */ 822 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 823 USB_REQ_GET_CONFIGURATION, 824 USB_DIR_IN | USB_RECIP_DEVICE, 825 0, 0, dev->buf, 1, USB_CTRL_GET_TIMEOUT); 826 if (retval != 1 || dev->buf[0] != expected) { 827 dev_err(&iface->dev, "get config --> %d %d (1 %d)\n", 828 retval, dev->buf[0], expected); 829 return (retval < 0) ? retval : -EDOM; 830 } 831 } 832 833 /* there's always [9.4.3] a device descriptor [9.6.1] */ 834 retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0, 835 dev->buf, sizeof(udev->descriptor)); 836 if (retval != sizeof(udev->descriptor)) { 837 dev_err(&iface->dev, "dev descriptor --> %d\n", retval); 838 return (retval < 0) ? retval : -EDOM; 839 } 840 841 /* 842 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB 843 * 3.0 spec 844 */ 845 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0210) { 846 struct usb_bos_descriptor *bos = NULL; 847 struct usb_dev_cap_header *header = NULL; 848 unsigned total, num, length; 849 u8 *buf; 850 851 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, 852 sizeof(*udev->bos->desc)); 853 if (retval != sizeof(*udev->bos->desc)) { 854 dev_err(&iface->dev, "bos descriptor --> %d\n", retval); 855 return (retval < 0) ? retval : -EDOM; 856 } 857 858 bos = (struct usb_bos_descriptor *)dev->buf; 859 total = le16_to_cpu(bos->wTotalLength); 860 num = bos->bNumDeviceCaps; 861 862 if (total > TBUF_SIZE) 863 total = TBUF_SIZE; 864 865 /* 866 * get generic device-level capability descriptors [9.6.2] 867 * in USB 3.0 spec 868 */ 869 retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, 870 total); 871 if (retval != total) { 872 dev_err(&iface->dev, "bos descriptor set --> %d\n", 873 retval); 874 return (retval < 0) ? retval : -EDOM; 875 } 876 877 length = sizeof(*udev->bos->desc); 878 buf = dev->buf; 879 for (i = 0; i < num; i++) { 880 buf += length; 881 if (buf + sizeof(struct usb_dev_cap_header) > 882 dev->buf + total) 883 break; 884 885 header = (struct usb_dev_cap_header *)buf; 886 length = header->bLength; 887 888 if (header->bDescriptorType != 889 USB_DT_DEVICE_CAPABILITY) { 890 dev_warn(&udev->dev, "not device capability descriptor, skip\n"); 891 continue; 892 } 893 894 switch (header->bDevCapabilityType) { 895 case USB_CAP_TYPE_EXT: 896 if (buf + USB_DT_USB_EXT_CAP_SIZE > 897 dev->buf + total || 898 !is_good_ext(dev, buf)) { 899 dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n"); 900 return -EDOM; 901 } 902 break; 903 case USB_SS_CAP_TYPE: 904 if (buf + USB_DT_USB_SS_CAP_SIZE > 905 dev->buf + total || 906 !is_good_ss_cap(dev, buf)) { 907 dev_err(&iface->dev, "bogus superspeed device capability descriptor\n"); 908 return -EDOM; 909 } 910 break; 911 case CONTAINER_ID_TYPE: 912 if (buf + USB_DT_USB_SS_CONTN_ID_SIZE > 913 dev->buf + total || 914 !is_good_con_id(dev, buf)) { 915 dev_err(&iface->dev, "bogus container id descriptor\n"); 916 return -EDOM; 917 } 918 break; 919 default: 920 break; 921 } 922 } 923 } 924 925 /* there's always [9.4.3] at least one config descriptor [9.6.3] */ 926 for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { 927 retval = usb_get_descriptor(udev, USB_DT_CONFIG, i, 928 dev->buf, TBUF_SIZE); 929 if (!is_good_config(dev, retval)) { 930 dev_err(&iface->dev, 931 "config [%d] descriptor --> %d\n", 932 i, retval); 933 return (retval < 0) ? retval : -EDOM; 934 } 935 936 /* FIXME cross-checking udev->config[i] to make sure usbcore 937 * parsed it right (etc) would be good testing paranoia 938 */ 939 } 940 941 /* and sometimes [9.2.6.6] speed dependent descriptors */ 942 if (le16_to_cpu(udev->descriptor.bcdUSB) == 0x0200) { 943 struct usb_qualifier_descriptor *d = NULL; 944 945 /* device qualifier [9.6.2] */ 946 retval = usb_get_descriptor(udev, 947 USB_DT_DEVICE_QUALIFIER, 0, dev->buf, 948 sizeof(struct usb_qualifier_descriptor)); 949 if (retval == -EPIPE) { 950 if (udev->speed == USB_SPEED_HIGH) { 951 dev_err(&iface->dev, 952 "hs dev qualifier --> %d\n", 953 retval); 954 return (retval < 0) ? retval : -EDOM; 955 } 956 /* usb2.0 but not high-speed capable; fine */ 957 } else if (retval != sizeof(struct usb_qualifier_descriptor)) { 958 dev_err(&iface->dev, "dev qualifier --> %d\n", retval); 959 return (retval < 0) ? retval : -EDOM; 960 } else 961 d = (struct usb_qualifier_descriptor *) dev->buf; 962 963 /* might not have [9.6.2] any other-speed configs [9.6.4] */ 964 if (d) { 965 unsigned max = d->bNumConfigurations; 966 for (i = 0; i < max; i++) { 967 retval = usb_get_descriptor(udev, 968 USB_DT_OTHER_SPEED_CONFIG, i, 969 dev->buf, TBUF_SIZE); 970 if (!is_good_config(dev, retval)) { 971 dev_err(&iface->dev, 972 "other speed config --> %d\n", 973 retval); 974 return (retval < 0) ? retval : -EDOM; 975 } 976 } 977 } 978 } 979 /* FIXME fetch strings from at least the device descriptor */ 980 981 /* [9.4.5] get_status always works */ 982 retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf); 983 if (retval) { 984 dev_err(&iface->dev, "get dev status --> %d\n", retval); 985 return retval; 986 } 987 988 /* FIXME configuration.bmAttributes says if we could try to set/clear 989 * the device's remote wakeup feature ... if we can, test that here 990 */ 991 992 retval = usb_get_status(udev, USB_RECIP_INTERFACE, 993 iface->altsetting[0].desc.bInterfaceNumber, dev->buf); 994 if (retval) { 995 dev_err(&iface->dev, "get interface status --> %d\n", retval); 996 return retval; 997 } 998 /* FIXME get status for each endpoint in the interface */ 999 1000 return 0; 1001} 1002 1003/*-------------------------------------------------------------------------*/ 1004 1005/* use ch9 requests to test whether: 1006 * (a) queues work for control, keeping N subtests queued and 1007 * active (auto-resubmit) for M loops through the queue. 1008 * (b) protocol stalls (control-only) will autorecover. 1009 * it's not like bulk/intr; no halt clearing. 1010 * (c) short control reads are reported and handled. 1011 * (d) queues are always processed in-order 1012 */ 1013 1014struct ctrl_ctx { 1015 spinlock_t lock; 1016 struct usbtest_dev *dev; 1017 struct completion complete; 1018 unsigned count; 1019 unsigned pending; 1020 int status; 1021 struct urb **urb; 1022 struct usbtest_param *param; 1023 int last; 1024}; 1025 1026#define NUM_SUBCASES 16 /* how many test subcases here? */ 1027 1028struct subcase { 1029 struct usb_ctrlrequest setup; 1030 int number; 1031 int expected; 1032}; 1033 1034static void ctrl_complete(struct urb *urb) 1035{ 1036 struct ctrl_ctx *ctx = urb->context; 1037 struct usb_ctrlrequest *reqp; 1038 struct subcase *subcase; 1039 int status = urb->status; 1040 1041 reqp = (struct usb_ctrlrequest *)urb->setup_packet; 1042 subcase = container_of(reqp, struct subcase, setup); 1043 1044 spin_lock(&ctx->lock); 1045 ctx->count--; 1046 ctx->pending--; 1047 1048 /* queue must transfer and complete in fifo order, unless 1049 * usb_unlink_urb() is used to unlink something not at the 1050 * physical queue head (not tested). 1051 */ 1052 if (subcase->number > 0) { 1053 if ((subcase->number - ctx->last) != 1) { 1054 ERROR(ctx->dev, 1055 "subcase %d completed out of order, last %d\n", 1056 subcase->number, ctx->last); 1057 status = -EDOM; 1058 ctx->last = subcase->number; 1059 goto error; 1060 } 1061 } 1062 ctx->last = subcase->number; 1063 1064 /* succeed or fault in only one way? */ 1065 if (status == subcase->expected) 1066 status = 0; 1067 1068 /* async unlink for cleanup? */ 1069 else if (status != -ECONNRESET) { 1070 1071 /* some faults are allowed, not required */ 1072 if (subcase->expected > 0 && ( 1073 ((status == -subcase->expected /* happened */ 1074 || status == 0)))) /* didn't */ 1075 status = 0; 1076 /* sometimes more than one fault is allowed */ 1077 else if (subcase->number == 12 && status == -EPIPE) 1078 status = 0; 1079 else 1080 ERROR(ctx->dev, "subtest %d error, status %d\n", 1081 subcase->number, status); 1082 } 1083 1084 /* unexpected status codes mean errors; ideally, in hardware */ 1085 if (status) { 1086error: 1087 if (ctx->status == 0) { 1088 int i; 1089 1090 ctx->status = status; 1091 ERROR(ctx->dev, "control queue %02x.%02x, err %d, " 1092 "%d left, subcase %d, len %d/%d\n", 1093 reqp->bRequestType, reqp->bRequest, 1094 status, ctx->count, subcase->number, 1095 urb->actual_length, 1096 urb->transfer_buffer_length); 1097 1098 /* FIXME this "unlink everything" exit route should 1099 * be a separate test case. 1100 */ 1101 1102 /* unlink whatever's still pending */ 1103 for (i = 1; i < ctx->param->sglen; i++) { 1104 struct urb *u = ctx->urb[ 1105 (i + subcase->number) 1106 % ctx->param->sglen]; 1107 1108 if (u == urb || !u->dev) 1109 continue; 1110 spin_unlock(&ctx->lock); 1111 status = usb_unlink_urb(u); 1112 spin_lock(&ctx->lock); 1113 switch (status) { 1114 case -EINPROGRESS: 1115 case -EBUSY: 1116 case -EIDRM: 1117 continue; 1118 default: 1119 ERROR(ctx->dev, "urb unlink --> %d\n", 1120 status); 1121 } 1122 } 1123 status = ctx->status; 1124 } 1125 } 1126 1127 /* resubmit if we need to, else mark this as done */ 1128 if ((status == 0) && (ctx->pending < ctx->count)) { 1129 status = usb_submit_urb(urb, GFP_ATOMIC); 1130 if (status != 0) { 1131 ERROR(ctx->dev, 1132 "can't resubmit ctrl %02x.%02x, err %d\n", 1133 reqp->bRequestType, reqp->bRequest, status); 1134 urb->dev = NULL; 1135 } else 1136 ctx->pending++; 1137 } else 1138 urb->dev = NULL; 1139 1140 /* signal completion when nothing's queued */ 1141 if (ctx->pending == 0) 1142 complete(&ctx->complete); 1143 spin_unlock(&ctx->lock); 1144} 1145 1146static int 1147test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) 1148{ 1149 struct usb_device *udev = testdev_to_usbdev(dev); 1150 struct urb **urb; 1151 struct ctrl_ctx context; 1152 int i; 1153 1154 if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen) 1155 return -EOPNOTSUPP; 1156 1157 spin_lock_init(&context.lock); 1158 context.dev = dev; 1159 init_completion(&context.complete); 1160 context.count = param->sglen * param->iterations; 1161 context.pending = 0; 1162 context.status = -ENOMEM; 1163 context.param = param; 1164 context.last = -1; 1165 1166 /* allocate and init the urbs we'll queue. 1167 * as with bulk/intr sglists, sglen is the queue depth; it also 1168 * controls which subtests run (more tests than sglen) or rerun. 1169 */ 1170 urb = kcalloc(param->sglen, sizeof(struct urb *), GFP_KERNEL); 1171 if (!urb) 1172 return -ENOMEM; 1173 for (i = 0; i < param->sglen; i++) { 1174 int pipe = usb_rcvctrlpipe(udev, 0); 1175 unsigned len; 1176 struct urb *u; 1177 struct usb_ctrlrequest req; 1178 struct subcase *reqp; 1179 1180 /* sign of this variable means: 1181 * -: tested code must return this (negative) error code 1182 * +: tested code may return this (negative too) error code 1183 */ 1184 int expected = 0; 1185 1186 /* requests here are mostly expected to succeed on any 1187 * device, but some are chosen to trigger protocol stalls 1188 * or short reads. 1189 */ 1190 memset(&req, 0, sizeof(req)); 1191 req.bRequest = USB_REQ_GET_DESCRIPTOR; 1192 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 1193 1194 switch (i % NUM_SUBCASES) { 1195 case 0: /* get device descriptor */ 1196 req.wValue = cpu_to_le16(USB_DT_DEVICE << 8); 1197 len = sizeof(struct usb_device_descriptor); 1198 break; 1199 case 1: /* get first config descriptor (only) */ 1200 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); 1201 len = sizeof(struct usb_config_descriptor); 1202 break; 1203 case 2: /* get altsetting (OFTEN STALLS) */ 1204 req.bRequest = USB_REQ_GET_INTERFACE; 1205 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 1206 /* index = 0 means first interface */ 1207 len = 1; 1208 expected = EPIPE; 1209 break; 1210 case 3: /* get interface status */ 1211 req.bRequest = USB_REQ_GET_STATUS; 1212 req.bRequestType = USB_DIR_IN|USB_RECIP_INTERFACE; 1213 /* interface 0 */ 1214 len = 2; 1215 break; 1216 case 4: /* get device status */ 1217 req.bRequest = USB_REQ_GET_STATUS; 1218 req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; 1219 len = 2; 1220 break; 1221 case 5: /* get device qualifier (MAY STALL) */ 1222 req.wValue = cpu_to_le16 (USB_DT_DEVICE_QUALIFIER << 8); 1223 len = sizeof(struct usb_qualifier_descriptor); 1224 if (udev->speed != USB_SPEED_HIGH) 1225 expected = EPIPE; 1226 break; 1227 case 6: /* get first config descriptor, plus interface */ 1228 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); 1229 len = sizeof(struct usb_config_descriptor); 1230 len += sizeof(struct usb_interface_descriptor); 1231 break; 1232 case 7: /* get interface descriptor (ALWAYS STALLS) */ 1233 req.wValue = cpu_to_le16 (USB_DT_INTERFACE << 8); 1234 /* interface == 0 */ 1235 len = sizeof(struct usb_interface_descriptor); 1236 expected = -EPIPE; 1237 break; 1238 /* NOTE: two consecutive stalls in the queue here. 1239 * that tests fault recovery a bit more aggressively. */ 1240 case 8: /* clear endpoint halt (MAY STALL) */ 1241 req.bRequest = USB_REQ_CLEAR_FEATURE; 1242 req.bRequestType = USB_RECIP_ENDPOINT; 1243 /* wValue 0 == ep halt */ 1244 /* wIndex 0 == ep0 (shouldn't halt!) */ 1245 len = 0; 1246 pipe = usb_sndctrlpipe(udev, 0); 1247 expected = EPIPE; 1248 break; 1249 case 9: /* get endpoint status */ 1250 req.bRequest = USB_REQ_GET_STATUS; 1251 req.bRequestType = USB_DIR_IN|USB_RECIP_ENDPOINT; 1252 /* endpoint 0 */ 1253 len = 2; 1254 break; 1255 case 10: /* trigger short read (EREMOTEIO) */ 1256 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); 1257 len = 1024; 1258 expected = -EREMOTEIO; 1259 break; 1260 /* NOTE: two consecutive _different_ faults in the queue. */ 1261 case 11: /* get endpoint descriptor (ALWAYS STALLS) */ 1262 req.wValue = cpu_to_le16(USB_DT_ENDPOINT << 8); 1263 /* endpoint == 0 */ 1264 len = sizeof(struct usb_interface_descriptor); 1265 expected = EPIPE; 1266 break; 1267 /* NOTE: sometimes even a third fault in the queue! */ 1268 case 12: /* get string 0 descriptor (MAY STALL) */ 1269 req.wValue = cpu_to_le16(USB_DT_STRING << 8); 1270 /* string == 0, for language IDs */ 1271 len = sizeof(struct usb_interface_descriptor); 1272 /* may succeed when > 4 languages */ 1273 expected = EREMOTEIO; /* or EPIPE, if no strings */ 1274 break; 1275 case 13: /* short read, resembling case 10 */ 1276 req.wValue = cpu_to_le16((USB_DT_CONFIG << 8) | 0); 1277 /* last data packet "should" be DATA1, not DATA0 */ 1278 if (udev->speed == USB_SPEED_SUPER) 1279 len = 1024 - 512; 1280 else 1281 len = 1024 - udev->descriptor.bMaxPacketSize0; 1282 expected = -EREMOTEIO; 1283 break; 1284 case 14: /* short read; try to fill the last packet */ 1285 req.wValue = cpu_to_le16((USB_DT_DEVICE << 8) | 0); 1286 /* device descriptor size == 18 bytes */ 1287 len = udev->descriptor.bMaxPacketSize0; 1288 if (udev->speed == USB_SPEED_SUPER) 1289 len = 512; 1290 switch (len) { 1291 case 8: 1292 len = 24; 1293 break; 1294 case 16: 1295 len = 32; 1296 break; 1297 } 1298 expected = -EREMOTEIO; 1299 break; 1300 case 15: 1301 req.wValue = cpu_to_le16(USB_DT_BOS << 8); 1302 if (udev->bos) 1303 len = le16_to_cpu(udev->bos->desc->wTotalLength); 1304 else 1305 len = sizeof(struct usb_bos_descriptor); 1306 if (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0201) 1307 expected = -EPIPE; 1308 break; 1309 default: 1310 ERROR(dev, "bogus number of ctrl queue testcases!\n"); 1311 context.status = -EINVAL; 1312 goto cleanup; 1313 } 1314 req.wLength = cpu_to_le16(len); 1315 urb[i] = u = simple_alloc_urb(udev, pipe, len, 0); 1316 if (!u) 1317 goto cleanup; 1318 1319 reqp = kmalloc(sizeof(*reqp), GFP_KERNEL); 1320 if (!reqp) 1321 goto cleanup; 1322 reqp->setup = req; 1323 reqp->number = i % NUM_SUBCASES; 1324 reqp->expected = expected; 1325 u->setup_packet = (char *) &reqp->setup; 1326 1327 u->context = &context; 1328 u->complete = ctrl_complete; 1329 } 1330 1331 /* queue the urbs */ 1332 context.urb = urb; 1333 spin_lock_irq(&context.lock); 1334 for (i = 0; i < param->sglen; i++) { 1335 context.status = usb_submit_urb(urb[i], GFP_ATOMIC); 1336 if (context.status != 0) { 1337 ERROR(dev, "can't submit urb[%d], status %d\n", 1338 i, context.status); 1339 context.count = context.pending; 1340 break; 1341 } 1342 context.pending++; 1343 } 1344 spin_unlock_irq(&context.lock); 1345 1346 /* FIXME set timer and time out; provide a disconnect hook */ 1347 1348 /* wait for the last one to complete */ 1349 if (context.pending > 0) 1350 wait_for_completion(&context.complete); 1351 1352cleanup: 1353 for (i = 0; i < param->sglen; i++) { 1354 if (!urb[i]) 1355 continue; 1356 urb[i]->dev = udev; 1357 kfree(urb[i]->setup_packet); 1358 simple_free_urb(urb[i]); 1359 } 1360 kfree(urb); 1361 return context.status; 1362} 1363#undef NUM_SUBCASES 1364 1365 1366/*-------------------------------------------------------------------------*/ 1367 1368static void unlink1_callback(struct urb *urb) 1369{ 1370 int status = urb->status; 1371 1372 /* we "know" -EPIPE (stall) never happens */ 1373 if (!status) 1374 status = usb_submit_urb(urb, GFP_ATOMIC); 1375 if (status) { 1376 urb->status = status; 1377 complete(urb->context); 1378 } 1379} 1380 1381static int unlink1(struct usbtest_dev *dev, int pipe, int size, int async) 1382{ 1383 struct urb *urb; 1384 struct completion completion; 1385 int retval = 0; 1386 1387 init_completion(&completion); 1388 urb = simple_alloc_urb(testdev_to_usbdev(dev), pipe, size, 0); 1389 if (!urb) 1390 return -ENOMEM; 1391 urb->context = &completion; 1392 urb->complete = unlink1_callback; 1393 1394 if (usb_pipeout(urb->pipe)) { 1395 simple_fill_buf(urb); 1396 urb->transfer_flags |= URB_ZERO_PACKET; 1397 } 1398 1399 /* keep the endpoint busy. there are lots of hc/hcd-internal 1400 * states, and testing should get to all of them over time. 1401 * 1402 * FIXME want additional tests for when endpoint is STALLing 1403 * due to errors, or is just NAKing requests. 1404 */ 1405 retval = usb_submit_urb(urb, GFP_KERNEL); 1406 if (retval != 0) { 1407 dev_err(&dev->intf->dev, "submit fail %d\n", retval); 1408 return retval; 1409 } 1410 1411 /* unlinking that should always work. variable delay tests more 1412 * hcd states and code paths, even with little other system load. 1413 */ 1414 msleep(jiffies % (2 * INTERRUPT_RATE)); 1415 if (async) { 1416 while (!completion_done(&completion)) { 1417 retval = usb_unlink_urb(urb); 1418 1419 if (retval == 0 && usb_pipein(urb->pipe)) 1420 retval = simple_check_buf(dev, urb); 1421 1422 switch (retval) { 1423 case -EBUSY: 1424 case -EIDRM: 1425 /* we can't unlink urbs while they're completing 1426 * or if they've completed, and we haven't 1427 * resubmitted. "normal" drivers would prevent 1428 * resubmission, but since we're testing unlink 1429 * paths, we can't. 1430 */ 1431 ERROR(dev, "unlink retry\n"); 1432 continue; 1433 case 0: 1434 case -EINPROGRESS: 1435 break; 1436 1437 default: 1438 dev_err(&dev->intf->dev, 1439 "unlink fail %d\n", retval); 1440 return retval; 1441 } 1442 1443 break; 1444 } 1445 } else 1446 usb_kill_urb(urb); 1447 1448 wait_for_completion(&completion); 1449 retval = urb->status; 1450 simple_free_urb(urb); 1451 1452 if (async) 1453 return (retval == -ECONNRESET) ? 0 : retval - 1000; 1454 else 1455 return (retval == -ENOENT || retval == -EPERM) ? 1456 0 : retval - 2000; 1457} 1458 1459static int unlink_simple(struct usbtest_dev *dev, int pipe, int len) 1460{ 1461 int retval = 0; 1462 1463 /* test sync and async paths */ 1464 retval = unlink1(dev, pipe, len, 1); 1465 if (!retval) 1466 retval = unlink1(dev, pipe, len, 0); 1467 return retval; 1468} 1469 1470/*-------------------------------------------------------------------------*/ 1471 1472struct queued_ctx { 1473 struct completion complete; 1474 atomic_t pending; 1475 unsigned num; 1476 int status; 1477 struct urb **urbs; 1478}; 1479 1480static void unlink_queued_callback(struct urb *urb) 1481{ 1482 int status = urb->status; 1483 struct queued_ctx *ctx = urb->context; 1484 1485 if (ctx->status) 1486 goto done; 1487 if (urb == ctx->urbs[ctx->num - 4] || urb == ctx->urbs[ctx->num - 2]) { 1488 if (status == -ECONNRESET) 1489 goto done; 1490 /* What error should we report if the URB completed normally? */ 1491 } 1492 if (status != 0) 1493 ctx->status = status; 1494 1495 done: 1496 if (atomic_dec_and_test(&ctx->pending)) 1497 complete(&ctx->complete); 1498} 1499 1500static int unlink_queued(struct usbtest_dev *dev, int pipe, unsigned num, 1501 unsigned size) 1502{ 1503 struct queued_ctx ctx; 1504 struct usb_device *udev = testdev_to_usbdev(dev); 1505 void *buf; 1506 dma_addr_t buf_dma; 1507 int i; 1508 int retval = -ENOMEM; 1509 1510 init_completion(&ctx.complete); 1511 atomic_set(&ctx.pending, 1); /* One more than the actual value */ 1512 ctx.num = num; 1513 ctx.status = 0; 1514 1515 buf = usb_alloc_coherent(udev, size, GFP_KERNEL, &buf_dma); 1516 if (!buf) 1517 return retval; 1518 memset(buf, 0, size); 1519 1520 /* Allocate and init the urbs we'll queue */ 1521 ctx.urbs = kcalloc(num, sizeof(struct urb *), GFP_KERNEL); 1522 if (!ctx.urbs) 1523 goto free_buf; 1524 for (i = 0; i < num; i++) { 1525 ctx.urbs[i] = usb_alloc_urb(0, GFP_KERNEL); 1526 if (!ctx.urbs[i]) 1527 goto free_urbs; 1528 usb_fill_bulk_urb(ctx.urbs[i], udev, pipe, buf, size, 1529 unlink_queued_callback, &ctx); 1530 ctx.urbs[i]->transfer_dma = buf_dma; 1531 ctx.urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; 1532 1533 if (usb_pipeout(ctx.urbs[i]->pipe)) { 1534 simple_fill_buf(ctx.urbs[i]); 1535 ctx.urbs[i]->transfer_flags |= URB_ZERO_PACKET; 1536 } 1537 } 1538 1539 /* Submit all the URBs and then unlink URBs num - 4 and num - 2. */ 1540 for (i = 0; i < num; i++) { 1541 atomic_inc(&ctx.pending); 1542 retval = usb_submit_urb(ctx.urbs[i], GFP_KERNEL); 1543 if (retval != 0) { 1544 dev_err(&dev->intf->dev, "submit urbs[%d] fail %d\n", 1545 i, retval); 1546 atomic_dec(&ctx.pending); 1547 ctx.status = retval; 1548 break; 1549 } 1550 } 1551 if (i == num) { 1552 usb_unlink_urb(ctx.urbs[num - 4]); 1553 usb_unlink_urb(ctx.urbs[num - 2]); 1554 } else { 1555 while (--i >= 0) 1556 usb_unlink_urb(ctx.urbs[i]); 1557 } 1558 1559 if (atomic_dec_and_test(&ctx.pending)) /* The extra count */ 1560 complete(&ctx.complete); 1561 wait_for_completion(&ctx.complete); 1562 retval = ctx.status; 1563 1564 free_urbs: 1565 for (i = 0; i < num; i++) 1566 usb_free_urb(ctx.urbs[i]); 1567 kfree(ctx.urbs); 1568 free_buf: 1569 usb_free_coherent(udev, size, buf, buf_dma); 1570 return retval; 1571} 1572 1573/*-------------------------------------------------------------------------*/ 1574 1575static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) 1576{ 1577 int retval; 1578 u16 status; 1579 1580 /* shouldn't look or act halted */ 1581 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1582 if (retval < 0) { 1583 ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n", 1584 ep, retval); 1585 return retval; 1586 } 1587 if (status != 0) { 1588 ERROR(tdev, "ep %02x bogus status: %04x != 0\n", ep, status); 1589 return -EINVAL; 1590 } 1591 retval = simple_io(tdev, urb, 1, 0, 0, __func__); 1592 if (retval != 0) 1593 return -EINVAL; 1594 return 0; 1595} 1596 1597static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb) 1598{ 1599 int retval; 1600 u16 status; 1601 1602 /* should look and act halted */ 1603 retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status); 1604 if (retval < 0) { 1605 ERROR(tdev, "ep %02x couldn't get halt status, %d\n", 1606 ep, retval); 1607 return retval; 1608 } 1609 if (status != 1) { 1610 ERROR(tdev, "ep %02x bogus status: %04x != 1\n", ep, status); 1611 return -EINVAL; 1612 } 1613 retval = simple_io(tdev, urb, 1, 0, -EPIPE, __func__); 1614 if (retval != -EPIPE) 1615 return -EINVAL; 1616 retval = simple_io(tdev, urb, 1, 0, -EPIPE, "verify_still_halted"); 1617 if (retval != -EPIPE) 1618 return -EINVAL; 1619 return 0; 1620} 1621 1622static int test_halt(struct usbtest_dev *tdev, int ep, struct urb *urb) 1623{ 1624 int retval; 1625 1626 /* shouldn't look or act halted now */ 1627 retval = verify_not_halted(tdev, ep, urb); 1628 if (retval < 0) 1629 return retval; 1630 1631 /* set halt (protocol test only), verify it worked */ 1632 retval = usb_control_msg(urb->dev, usb_sndctrlpipe(urb->dev, 0), 1633 USB_REQ_SET_FEATURE, USB_RECIP_ENDPOINT, 1634 USB_ENDPOINT_HALT, ep, 1635 NULL, 0, USB_CTRL_SET_TIMEOUT); 1636 if (retval < 0) { 1637 ERROR(tdev, "ep %02x couldn't set halt, %d\n", ep, retval); 1638 return retval; 1639 } 1640 retval = verify_halted(tdev, ep, urb); 1641 if (retval < 0) { 1642 int ret; 1643 1644 /* clear halt anyways, else further tests will fail */ 1645 ret = usb_clear_halt(urb->dev, urb->pipe); 1646 if (ret) 1647 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", 1648 ep, ret); 1649 1650 return retval; 1651 } 1652 1653 /* clear halt (tests API + protocol), verify it worked */ 1654 retval = usb_clear_halt(urb->dev, urb->pipe); 1655 if (retval < 0) { 1656 ERROR(tdev, "ep %02x couldn't clear halt, %d\n", ep, retval); 1657 return retval; 1658 } 1659 retval = verify_not_halted(tdev, ep, urb); 1660 if (retval < 0) 1661 return retval; 1662 1663 /* NOTE: could also verify SET_INTERFACE clear halts ... */ 1664 1665 return 0; 1666} 1667 1668static int halt_simple(struct usbtest_dev *dev) 1669{ 1670 int ep; 1671 int retval = 0; 1672 struct urb *urb; 1673 struct usb_device *udev = testdev_to_usbdev(dev); 1674 1675 if (udev->speed == USB_SPEED_SUPER) 1676 urb = simple_alloc_urb(udev, 0, 1024, 0); 1677 else 1678 urb = simple_alloc_urb(udev, 0, 512, 0); 1679 if (urb == NULL) 1680 return -ENOMEM; 1681 1682 if (dev->in_pipe) { 1683 ep = usb_pipeendpoint(dev->in_pipe) | USB_DIR_IN; 1684 urb->pipe = dev->in_pipe; 1685 retval = test_halt(dev, ep, urb); 1686 if (retval < 0) 1687 goto done; 1688 } 1689 1690 if (dev->out_pipe) { 1691 ep = usb_pipeendpoint(dev->out_pipe); 1692 urb->pipe = dev->out_pipe; 1693 retval = test_halt(dev, ep, urb); 1694 } 1695done: 1696 simple_free_urb(urb); 1697 return retval; 1698} 1699 1700/*-------------------------------------------------------------------------*/ 1701 1702/* Control OUT tests use the vendor control requests from Intel's 1703 * USB 2.0 compliance test device: write a buffer, read it back. 1704 * 1705 * Intel's spec only _requires_ that it work for one packet, which 1706 * is pretty weak. Some HCDs place limits here; most devices will 1707 * need to be able to handle more than one OUT data packet. We'll 1708 * try whatever we're told to try. 1709 */ 1710static int ctrl_out(struct usbtest_dev *dev, 1711 unsigned count, unsigned length, unsigned vary, unsigned offset) 1712{ 1713 unsigned i, j, len; 1714 int retval; 1715 u8 *buf; 1716 char *what = "?"; 1717 struct usb_device *udev; 1718 1719 if (length < 1 || length > 0xffff || vary >= length) 1720 return -EINVAL; 1721 1722 buf = kmalloc(length + offset, GFP_KERNEL); 1723 if (!buf) 1724 return -ENOMEM; 1725 1726 buf += offset; 1727 udev = testdev_to_usbdev(dev); 1728 len = length; 1729 retval = 0; 1730 1731 /* NOTE: hardware might well act differently if we pushed it 1732 * with lots back-to-back queued requests. 1733 */ 1734 for (i = 0; i < count; i++) { 1735 /* write patterned data */ 1736 for (j = 0; j < len; j++) 1737 buf[j] = i + j; 1738 retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 1739 0x5b, USB_DIR_OUT|USB_TYPE_VENDOR, 1740 0, 0, buf, len, USB_CTRL_SET_TIMEOUT); 1741 if (retval != len) { 1742 what = "write"; 1743 if (retval >= 0) { 1744 ERROR(dev, "ctrl_out, wlen %d (expected %d)\n", 1745 retval, len); 1746 retval = -EBADMSG; 1747 } 1748 break; 1749 } 1750 1751 /* read it back -- assuming nothing intervened!! */ 1752 retval = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 1753 0x5c, USB_DIR_IN|USB_TYPE_VENDOR, 1754 0, 0, buf, len, USB_CTRL_GET_TIMEOUT); 1755 if (retval != len) { 1756 what = "read"; 1757 if (retval >= 0) { 1758 ERROR(dev, "ctrl_out, rlen %d (expected %d)\n", 1759 retval, len); 1760 retval = -EBADMSG; 1761 } 1762 break; 1763 } 1764 1765 /* fail if we can't verify */ 1766 for (j = 0; j < len; j++) { 1767 if (buf[j] != (u8) (i + j)) { 1768 ERROR(dev, "ctrl_out, byte %d is %d not %d\n", 1769 j, buf[j], (u8) i + j); 1770 retval = -EBADMSG; 1771 break; 1772 } 1773 } 1774 if (retval < 0) { 1775 what = "verify"; 1776 break; 1777 } 1778 1779 len += vary; 1780 1781 /* [real world] the "zero bytes IN" case isn't really used. 1782 * hardware can easily trip up in this weird case, since its 1783 * status stage is IN, not OUT like other ep0in transfers. 1784 */ 1785 if (len > length) 1786 len = realworld ? 1 : 0; 1787 } 1788 1789 if (retval < 0) 1790 ERROR(dev, "ctrl_out %s failed, code %d, count %d\n", 1791 what, retval, i); 1792 1793 kfree(buf - offset); 1794 return retval; 1795} 1796 1797/*-------------------------------------------------------------------------*/ 1798 1799/* ISO tests ... mimics common usage 1800 * - buffer length is split into N packets (mostly maxpacket sized) 1801 * - multi-buffers according to sglen 1802 */ 1803 1804struct iso_context { 1805 unsigned count; 1806 unsigned pending; 1807 spinlock_t lock; 1808 struct completion done; 1809 int submit_error; 1810 unsigned long errors; 1811 unsigned long packet_count; 1812 struct usbtest_dev *dev; 1813}; 1814 1815static void iso_callback(struct urb *urb) 1816{ 1817 struct iso_context *ctx = urb->context; 1818 1819 spin_lock(&ctx->lock); 1820 ctx->count--; 1821 1822 ctx->packet_count += urb->number_of_packets; 1823 if (urb->error_count > 0) 1824 ctx->errors += urb->error_count; 1825 else if (urb->status != 0) 1826 ctx->errors += urb->number_of_packets; 1827 else if (urb->actual_length != urb->transfer_buffer_length) 1828 ctx->errors++; 1829 else if (check_guard_bytes(ctx->dev, urb) != 0) 1830 ctx->errors++; 1831 1832 if (urb->status == 0 && ctx->count > (ctx->pending - 1) 1833 && !ctx->submit_error) { 1834 int status = usb_submit_urb(urb, GFP_ATOMIC); 1835 switch (status) { 1836 case 0: 1837 goto done; 1838 default: 1839 dev_err(&ctx->dev->intf->dev, 1840 "iso resubmit err %d\n", 1841 status); 1842 /* FALLTHROUGH */ 1843 case -ENODEV: /* disconnected */ 1844 case -ESHUTDOWN: /* endpoint disabled */ 1845 ctx->submit_error = 1; 1846 break; 1847 } 1848 } 1849 1850 ctx->pending--; 1851 if (ctx->pending == 0) { 1852 if (ctx->errors) 1853 dev_err(&ctx->dev->intf->dev, 1854 "iso test, %lu errors out of %lu\n", 1855 ctx->errors, ctx->packet_count); 1856 complete(&ctx->done); 1857 } 1858done: 1859 spin_unlock(&ctx->lock); 1860} 1861 1862static struct urb *iso_alloc_urb( 1863 struct usb_device *udev, 1864 int pipe, 1865 struct usb_endpoint_descriptor *desc, 1866 long bytes, 1867 unsigned offset 1868) 1869{ 1870 struct urb *urb; 1871 unsigned i, maxp, packets; 1872 1873 if (bytes < 0 || !desc) 1874 return NULL; 1875 maxp = 0x7ff & usb_endpoint_maxp(desc); 1876 maxp *= 1 + (0x3 & (usb_endpoint_maxp(desc) >> 11)); 1877 packets = DIV_ROUND_UP(bytes, maxp); 1878 1879 urb = usb_alloc_urb(packets, GFP_KERNEL); 1880 if (!urb) 1881 return urb; 1882 urb->dev = udev; 1883 urb->pipe = pipe; 1884 1885 urb->number_of_packets = packets; 1886 urb->transfer_buffer_length = bytes; 1887 urb->transfer_buffer = usb_alloc_coherent(udev, bytes + offset, 1888 GFP_KERNEL, 1889 &urb->transfer_dma); 1890 if (!urb->transfer_buffer) { 1891 usb_free_urb(urb); 1892 return NULL; 1893 } 1894 if (offset) { 1895 memset(urb->transfer_buffer, GUARD_BYTE, offset); 1896 urb->transfer_buffer += offset; 1897 urb->transfer_dma += offset; 1898 } 1899 /* For inbound transfers use guard byte so that test fails if 1900 data not correctly copied */ 1901 memset(urb->transfer_buffer, 1902 usb_pipein(urb->pipe) ? GUARD_BYTE : 0, 1903 bytes); 1904 1905 for (i = 0; i < packets; i++) { 1906 /* here, only the last packet will be short */ 1907 urb->iso_frame_desc[i].length = min((unsigned) bytes, maxp); 1908 bytes -= urb->iso_frame_desc[i].length; 1909 1910 urb->iso_frame_desc[i].offset = maxp * i; 1911 } 1912 1913 urb->complete = iso_callback; 1914 /* urb->context = SET BY CALLER */ 1915 urb->interval = 1 << (desc->bInterval - 1); 1916 urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; 1917 return urb; 1918} 1919 1920static int 1921test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param, 1922 int pipe, struct usb_endpoint_descriptor *desc, unsigned offset) 1923{ 1924 struct iso_context context; 1925 struct usb_device *udev; 1926 unsigned i; 1927 unsigned long packets = 0; 1928 int status = 0; 1929 struct urb *urbs[10]; /* FIXME no limit */ 1930 1931 if (param->sglen > 10) 1932 return -EDOM; 1933 1934 memset(&context, 0, sizeof(context)); 1935 context.count = param->iterations * param->sglen; 1936 context.dev = dev; 1937 init_completion(&context.done); 1938 spin_lock_init(&context.lock); 1939 1940 memset(urbs, 0, sizeof(urbs)); 1941 udev = testdev_to_usbdev(dev); 1942 dev_info(&dev->intf->dev, 1943 "... iso period %d %sframes, wMaxPacket %04x\n", 1944 1 << (desc->bInterval - 1), 1945 (udev->speed == USB_SPEED_HIGH) ? "micro" : "", 1946 usb_endpoint_maxp(desc)); 1947 1948 for (i = 0; i < param->sglen; i++) { 1949 urbs[i] = iso_alloc_urb(udev, pipe, desc, 1950 param->length, offset); 1951 if (!urbs[i]) { 1952 status = -ENOMEM; 1953 goto fail; 1954 } 1955 packets += urbs[i]->number_of_packets; 1956 urbs[i]->context = &context; 1957 } 1958 packets *= param->iterations; 1959 dev_info(&dev->intf->dev, 1960 "... total %lu msec (%lu packets)\n", 1961 (packets * (1 << (desc->bInterval - 1))) 1962 / ((udev->speed == USB_SPEED_HIGH) ? 8 : 1), 1963 packets); 1964 1965 spin_lock_irq(&context.lock); 1966 for (i = 0; i < param->sglen; i++) { 1967 ++context.pending; 1968 status = usb_submit_urb(urbs[i], GFP_ATOMIC); 1969 if (status < 0) { 1970 ERROR(dev, "submit iso[%d], error %d\n", i, status); 1971 if (i == 0) { 1972 spin_unlock_irq(&context.lock); 1973 goto fail; 1974 } 1975 1976 simple_free_urb(urbs[i]); 1977 urbs[i] = NULL; 1978 context.pending--; 1979 context.submit_error = 1; 1980 break; 1981 } 1982 } 1983 spin_unlock_irq(&context.lock); 1984 1985 wait_for_completion(&context.done); 1986 1987 for (i = 0; i < param->sglen; i++) { 1988 if (urbs[i]) 1989 simple_free_urb(urbs[i]); 1990 } 1991 /* 1992 * Isochronous transfers are expected to fail sometimes. As an 1993 * arbitrary limit, we will report an error if any submissions 1994 * fail or if the transfer failure rate is > 10%. 1995 */ 1996 if (status != 0) 1997 ; 1998 else if (context.submit_error) 1999 status = -EACCES; 2000 else if (context.errors > context.packet_count / 10) 2001 status = -EIO; 2002 return status; 2003 2004fail: 2005 for (i = 0; i < param->sglen; i++) { 2006 if (urbs[i]) 2007 simple_free_urb(urbs[i]); 2008 } 2009 return status; 2010} 2011 2012static int test_unaligned_bulk( 2013 struct usbtest_dev *tdev, 2014 int pipe, 2015 unsigned length, 2016 int iterations, 2017 unsigned transfer_flags, 2018 const char *label) 2019{ 2020 int retval; 2021 struct urb *urb = usbtest_alloc_urb( 2022 testdev_to_usbdev(tdev), pipe, length, transfer_flags, 1, 0); 2023 2024 if (!urb) 2025 return -ENOMEM; 2026 2027 retval = simple_io(tdev, urb, iterations, 0, 0, label); 2028 simple_free_urb(urb); 2029 return retval; 2030} 2031 2032/*-------------------------------------------------------------------------*/ 2033 2034/* We only have this one interface to user space, through usbfs. 2035 * User mode code can scan usbfs to find N different devices (maybe on 2036 * different busses) to use when testing, and allocate one thread per 2037 * test. So discovery is simplified, and we have no device naming issues. 2038 * 2039 * Don't use these only as stress/load tests. Use them along with with 2040 * other USB bus activity: plugging, unplugging, mousing, mp3 playback, 2041 * video capture, and so on. Run different tests at different times, in 2042 * different sequences. Nothing here should interact with other devices, 2043 * except indirectly by consuming USB bandwidth and CPU resources for test 2044 * threads and request completion. But the only way to know that for sure 2045 * is to test when HC queues are in use by many devices. 2046 * 2047 * WARNING: Because usbfs grabs udev->dev.sem before calling this ioctl(), 2048 * it locks out usbcore in certain code paths. Notably, if you disconnect 2049 * the device-under-test, hub_wq will wait block forever waiting for the 2050 * ioctl to complete ... so that usb_disconnect() can abort the pending 2051 * urbs and then call usbtest_disconnect(). To abort a test, you're best 2052 * off just killing the userspace task and waiting for it to exit. 2053 */ 2054 2055static int 2056usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) 2057{ 2058 struct usbtest_dev *dev = usb_get_intfdata(intf); 2059 struct usb_device *udev = testdev_to_usbdev(dev); 2060 struct usbtest_param *param = buf; 2061 int retval = -EOPNOTSUPP; 2062 struct urb *urb; 2063 struct scatterlist *sg; 2064 struct usb_sg_request req; 2065 struct timeval start; 2066 unsigned i; 2067 2068 /* FIXME USBDEVFS_CONNECTINFO doesn't say how fast the device is. */ 2069 2070 pattern = mod_pattern; 2071 2072 if (code != USBTEST_REQUEST) 2073 return -EOPNOTSUPP; 2074 2075 if (param->iterations <= 0) 2076 return -EINVAL; 2077 2078 if (mutex_lock_interruptible(&dev->lock)) 2079 return -ERESTARTSYS; 2080 2081 /* FIXME: What if a system sleep starts while a test is running? */ 2082 2083 /* some devices, like ez-usb default devices, need a non-default 2084 * altsetting to have any active endpoints. some tests change 2085 * altsettings; force a default so most tests don't need to check. 2086 */ 2087 if (dev->info->alt >= 0) { 2088 int res; 2089 2090 if (intf->altsetting->desc.bInterfaceNumber) { 2091 mutex_unlock(&dev->lock); 2092 return -ENODEV; 2093 } 2094 res = set_altsetting(dev, dev->info->alt); 2095 if (res) { 2096 dev_err(&intf->dev, 2097 "set altsetting to %d failed, %d\n", 2098 dev->info->alt, res); 2099 mutex_unlock(&dev->lock); 2100 return res; 2101 } 2102 } 2103 2104 /* 2105 * Just a bunch of test cases that every HCD is expected to handle. 2106 * 2107 * Some may need specific firmware, though it'd be good to have 2108 * one firmware image to handle all the test cases. 2109 * 2110 * FIXME add more tests! cancel requests, verify the data, control 2111 * queueing, concurrent read+write threads, and so on. 2112 */ 2113 do_gettimeofday(&start); 2114 switch (param->test_num) { 2115 2116 case 0: 2117 dev_info(&intf->dev, "TEST 0: NOP\n"); 2118 retval = 0; 2119 break; 2120 2121 /* Simple non-queued bulk I/O tests */ 2122 case 1: 2123 if (dev->out_pipe == 0) 2124 break; 2125 dev_info(&intf->dev, 2126 "TEST 1: write %d bytes %u times\n", 2127 param->length, param->iterations); 2128 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); 2129 if (!urb) { 2130 retval = -ENOMEM; 2131 break; 2132 } 2133 /* FIRMWARE: bulk sink (maybe accepts short writes) */ 2134 retval = simple_io(dev, urb, param->iterations, 0, 0, "test1"); 2135 simple_free_urb(urb); 2136 break; 2137 case 2: 2138 if (dev->in_pipe == 0) 2139 break; 2140 dev_info(&intf->dev, 2141 "TEST 2: read %d bytes %u times\n", 2142 param->length, param->iterations); 2143 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); 2144 if (!urb) { 2145 retval = -ENOMEM; 2146 break; 2147 } 2148 /* FIRMWARE: bulk source (maybe generates short writes) */ 2149 retval = simple_io(dev, urb, param->iterations, 0, 0, "test2"); 2150 simple_free_urb(urb); 2151 break; 2152 case 3: 2153 if (dev->out_pipe == 0 || param->vary == 0) 2154 break; 2155 dev_info(&intf->dev, 2156 "TEST 3: write/%d 0..%d bytes %u times\n", 2157 param->vary, param->length, param->iterations); 2158 urb = simple_alloc_urb(udev, dev->out_pipe, param->length, 0); 2159 if (!urb) { 2160 retval = -ENOMEM; 2161 break; 2162 } 2163 /* FIRMWARE: bulk sink (maybe accepts short writes) */ 2164 retval = simple_io(dev, urb, param->iterations, param->vary, 2165 0, "test3"); 2166 simple_free_urb(urb); 2167 break; 2168 case 4: 2169 if (dev->in_pipe == 0 || param->vary == 0) 2170 break; 2171 dev_info(&intf->dev, 2172 "TEST 4: read/%d 0..%d bytes %u times\n", 2173 param->vary, param->length, param->iterations); 2174 urb = simple_alloc_urb(udev, dev->in_pipe, param->length, 0); 2175 if (!urb) { 2176 retval = -ENOMEM; 2177 break; 2178 } 2179 /* FIRMWARE: bulk source (maybe generates short writes) */ 2180 retval = simple_io(dev, urb, param->iterations, param->vary, 2181 0, "test4"); 2182 simple_free_urb(urb); 2183 break; 2184 2185 /* Queued bulk I/O tests */ 2186 case 5: 2187 if (dev->out_pipe == 0 || param->sglen == 0) 2188 break; 2189 dev_info(&intf->dev, 2190 "TEST 5: write %d sglists %d entries of %d bytes\n", 2191 param->iterations, 2192 param->sglen, param->length); 2193 sg = alloc_sglist(param->sglen, param->length, 2194 0, dev, dev->out_pipe); 2195 if (!sg) { 2196 retval = -ENOMEM; 2197 break; 2198 } 2199 /* FIRMWARE: bulk sink (maybe accepts short writes) */ 2200 retval = perform_sglist(dev, param->iterations, dev->out_pipe, 2201 &req, sg, param->sglen); 2202 free_sglist(sg, param->sglen); 2203 break; 2204 2205 case 6: 2206 if (dev->in_pipe == 0 || param->sglen == 0) 2207 break; 2208 dev_info(&intf->dev, 2209 "TEST 6: read %d sglists %d entries of %d bytes\n", 2210 param->iterations, 2211 param->sglen, param->length); 2212 sg = alloc_sglist(param->sglen, param->length, 2213 0, dev, dev->in_pipe); 2214 if (!sg) { 2215 retval = -ENOMEM; 2216 break; 2217 } 2218 /* FIRMWARE: bulk source (maybe generates short writes) */ 2219 retval = perform_sglist(dev, param->iterations, dev->in_pipe, 2220 &req, sg, param->sglen); 2221 free_sglist(sg, param->sglen); 2222 break; 2223 case 7: 2224 if (dev->out_pipe == 0 || param->sglen == 0 || param->vary == 0) 2225 break; 2226 dev_info(&intf->dev, 2227 "TEST 7: write/%d %d sglists %d entries 0..%d bytes\n", 2228 param->vary, param->iterations, 2229 param->sglen, param->length); 2230 sg = alloc_sglist(param->sglen, param->length, 2231 param->vary, dev, dev->out_pipe); 2232 if (!sg) { 2233 retval = -ENOMEM; 2234 break; 2235 } 2236 /* FIRMWARE: bulk sink (maybe accepts short writes) */ 2237 retval = perform_sglist(dev, param->iterations, dev->out_pipe, 2238 &req, sg, param->sglen); 2239 free_sglist(sg, param->sglen); 2240 break; 2241 case 8: 2242 if (dev->in_pipe == 0 || param->sglen == 0 || param->vary == 0) 2243 break; 2244 dev_info(&intf->dev, 2245 "TEST 8: read/%d %d sglists %d entries 0..%d bytes\n", 2246 param->vary, param->iterations, 2247 param->sglen, param->length); 2248 sg = alloc_sglist(param->sglen, param->length, 2249 param->vary, dev, dev->in_pipe); 2250 if (!sg) { 2251 retval = -ENOMEM; 2252 break; 2253 } 2254 /* FIRMWARE: bulk source (maybe generates short writes) */ 2255 retval = perform_sglist(dev, param->iterations, dev->in_pipe, 2256 &req, sg, param->sglen); 2257 free_sglist(sg, param->sglen); 2258 break; 2259 2260 /* non-queued sanity tests for control (chapter 9 subset) */ 2261 case 9: 2262 retval = 0; 2263 dev_info(&intf->dev, 2264 "TEST 9: ch9 (subset) control tests, %d times\n", 2265 param->iterations); 2266 for (i = param->iterations; retval == 0 && i--; /* NOP */) 2267 retval = ch9_postconfig(dev); 2268 if (retval) 2269 dev_err(&intf->dev, "ch9 subset failed, " 2270 "iterations left %d\n", i); 2271 break; 2272 2273 /* queued control messaging */ 2274 case 10: 2275 retval = 0; 2276 dev_info(&intf->dev, 2277 "TEST 10: queue %d control calls, %d times\n", 2278 param->sglen, 2279 param->iterations); 2280 retval = test_ctrl_queue(dev, param); 2281 break; 2282 2283 /* simple non-queued unlinks (ring with one urb) */ 2284 case 11: 2285 if (dev->in_pipe == 0 || !param->length) 2286 break; 2287 retval = 0; 2288 dev_info(&intf->dev, "TEST 11: unlink %d reads of %d\n", 2289 param->iterations, param->length); 2290 for (i = param->iterations; retval == 0 && i--; /* NOP */) 2291 retval = unlink_simple(dev, dev->in_pipe, 2292 param->length); 2293 if (retval) 2294 dev_err(&intf->dev, "unlink reads failed %d, " 2295 "iterations left %d\n", retval, i); 2296 break; 2297 case 12: 2298 if (dev->out_pipe == 0 || !param->length) 2299 break; 2300 retval = 0; 2301 dev_info(&intf->dev, "TEST 12: unlink %d writes of %d\n", 2302 param->iterations, param->length); 2303 for (i = param->iterations; retval == 0 && i--; /* NOP */) 2304 retval = unlink_simple(dev, dev->out_pipe, 2305 param->length); 2306 if (retval) 2307 dev_err(&intf->dev, "unlink writes failed %d, " 2308 "iterations left %d\n", retval, i); 2309 break; 2310 2311 /* ep halt tests */ 2312 case 13: 2313 if (dev->out_pipe == 0 && dev->in_pipe == 0) 2314 break; 2315 retval = 0; 2316 dev_info(&intf->dev, "TEST 13: set/clear %d halts\n", 2317 param->iterations); 2318 for (i = param->iterations; retval == 0 && i--; /* NOP */) 2319 retval = halt_simple(dev); 2320 2321 if (retval) 2322 ERROR(dev, "halts failed, iterations left %d\n", i); 2323 break; 2324 2325 /* control write tests */ 2326 case 14: 2327 if (!dev->info->ctrl_out) 2328 break; 2329 dev_info(&intf->dev, "TEST 14: %d ep0out, %d..%d vary %d\n", 2330 param->iterations, 2331 realworld ? 1 : 0, param->length, 2332 param->vary); 2333 retval = ctrl_out(dev, param->iterations, 2334 param->length, param->vary, 0); 2335 break; 2336 2337 /* iso write tests */ 2338 case 15: 2339 if (dev->out_iso_pipe == 0 || param->sglen == 0) 2340 break; 2341 dev_info(&intf->dev, 2342 "TEST 15: write %d iso, %d entries of %d bytes\n", 2343 param->iterations, 2344 param->sglen, param->length); 2345 /* FIRMWARE: iso sink */ 2346 retval = test_iso_queue(dev, param, 2347 dev->out_iso_pipe, dev->iso_out, 0); 2348 break; 2349 2350 /* iso read tests */ 2351 case 16: 2352 if (dev->in_iso_pipe == 0 || param->sglen == 0) 2353 break; 2354 dev_info(&intf->dev, 2355 "TEST 16: read %d iso, %d entries of %d bytes\n", 2356 param->iterations, 2357 param->sglen, param->length); 2358 /* FIRMWARE: iso source */ 2359 retval = test_iso_queue(dev, param, 2360 dev->in_iso_pipe, dev->iso_in, 0); 2361 break; 2362 2363 /* FIXME scatterlist cancel (needs helper thread) */ 2364 2365 /* Tests for bulk I/O using DMA mapping by core and odd address */ 2366 case 17: 2367 if (dev->out_pipe == 0) 2368 break; 2369 dev_info(&intf->dev, 2370 "TEST 17: write odd addr %d bytes %u times core map\n", 2371 param->length, param->iterations); 2372 2373 retval = test_unaligned_bulk( 2374 dev, dev->out_pipe, 2375 param->length, param->iterations, 2376 0, "test17"); 2377 break; 2378 2379 case 18: 2380 if (dev->in_pipe == 0) 2381 break; 2382 dev_info(&intf->dev, 2383 "TEST 18: read odd addr %d bytes %u times core map\n", 2384 param->length, param->iterations); 2385 2386 retval = test_unaligned_bulk( 2387 dev, dev->in_pipe, 2388 param->length, param->iterations, 2389 0, "test18"); 2390 break; 2391 2392 /* Tests for bulk I/O using premapped coherent buffer and odd address */ 2393 case 19: 2394 if (dev->out_pipe == 0) 2395 break; 2396 dev_info(&intf->dev, 2397 "TEST 19: write odd addr %d bytes %u times premapped\n", 2398 param->length, param->iterations); 2399 2400 retval = test_unaligned_bulk( 2401 dev, dev->out_pipe, 2402 param->length, param->iterations, 2403 URB_NO_TRANSFER_DMA_MAP, "test19"); 2404 break; 2405 2406 case 20: 2407 if (dev->in_pipe == 0) 2408 break; 2409 dev_info(&intf->dev, 2410 "TEST 20: read odd addr %d bytes %u times premapped\n", 2411 param->length, param->iterations); 2412 2413 retval = test_unaligned_bulk( 2414 dev, dev->in_pipe, 2415 param->length, param->iterations, 2416 URB_NO_TRANSFER_DMA_MAP, "test20"); 2417 break; 2418 2419 /* control write tests with unaligned buffer */ 2420 case 21: 2421 if (!dev->info->ctrl_out) 2422 break; 2423 dev_info(&intf->dev, 2424 "TEST 21: %d ep0out odd addr, %d..%d vary %d\n", 2425 param->iterations, 2426 realworld ? 1 : 0, param->length, 2427 param->vary); 2428 retval = ctrl_out(dev, param->iterations, 2429 param->length, param->vary, 1); 2430 break; 2431 2432 /* unaligned iso tests */ 2433 case 22: 2434 if (dev->out_iso_pipe == 0 || param->sglen == 0) 2435 break; 2436 dev_info(&intf->dev, 2437 "TEST 22: write %d iso odd, %d entries of %d bytes\n", 2438 param->iterations, 2439 param->sglen, param->length); 2440 retval = test_iso_queue(dev, param, 2441 dev->out_iso_pipe, dev->iso_out, 1); 2442 break; 2443 2444 case 23: 2445 if (dev->in_iso_pipe == 0 || param->sglen == 0) 2446 break; 2447 dev_info(&intf->dev, 2448 "TEST 23: read %d iso odd, %d entries of %d bytes\n", 2449 param->iterations, 2450 param->sglen, param->length); 2451 retval = test_iso_queue(dev, param, 2452 dev->in_iso_pipe, dev->iso_in, 1); 2453 break; 2454 2455 /* unlink URBs from a bulk-OUT queue */ 2456 case 24: 2457 if (dev->out_pipe == 0 || !param->length || param->sglen < 4) 2458 break; 2459 retval = 0; 2460 dev_info(&intf->dev, "TEST 24: unlink from %d queues of " 2461 "%d %d-byte writes\n", 2462 param->iterations, param->sglen, param->length); 2463 for (i = param->iterations; retval == 0 && i > 0; --i) { 2464 retval = unlink_queued(dev, dev->out_pipe, 2465 param->sglen, param->length); 2466 if (retval) { 2467 dev_err(&intf->dev, 2468 "unlink queued writes failed %d, " 2469 "iterations left %d\n", retval, i); 2470 break; 2471 } 2472 } 2473 break; 2474 2475 /* Simple non-queued interrupt I/O tests */ 2476 case 25: 2477 if (dev->out_int_pipe == 0) 2478 break; 2479 dev_info(&intf->dev, 2480 "TEST 25: write %d bytes %u times\n", 2481 param->length, param->iterations); 2482 urb = simple_alloc_urb(udev, dev->out_int_pipe, param->length, 2483 dev->int_out->bInterval); 2484 if (!urb) { 2485 retval = -ENOMEM; 2486 break; 2487 } 2488 /* FIRMWARE: interrupt sink (maybe accepts short writes) */ 2489 retval = simple_io(dev, urb, param->iterations, 0, 0, "test25"); 2490 simple_free_urb(urb); 2491 break; 2492 case 26: 2493 if (dev->in_int_pipe == 0) 2494 break; 2495 dev_info(&intf->dev, 2496 "TEST 26: read %d bytes %u times\n", 2497 param->length, param->iterations); 2498 urb = simple_alloc_urb(udev, dev->in_int_pipe, param->length, 2499 dev->int_in->bInterval); 2500 if (!urb) { 2501 retval = -ENOMEM; 2502 break; 2503 } 2504 /* FIRMWARE: interrupt source (maybe generates short writes) */ 2505 retval = simple_io(dev, urb, param->iterations, 0, 0, "test26"); 2506 simple_free_urb(urb); 2507 break; 2508 } 2509 do_gettimeofday(¶m->duration); 2510 param->duration.tv_sec -= start.tv_sec; 2511 param->duration.tv_usec -= start.tv_usec; 2512 if (param->duration.tv_usec < 0) { 2513 param->duration.tv_usec += 1000 * 1000; 2514 param->duration.tv_sec -= 1; 2515 } 2516 mutex_unlock(&dev->lock); 2517 return retval; 2518} 2519 2520/*-------------------------------------------------------------------------*/ 2521 2522static unsigned force_interrupt; 2523module_param(force_interrupt, uint, 0); 2524MODULE_PARM_DESC(force_interrupt, "0 = test default; else interrupt"); 2525 2526#ifdef GENERIC 2527static unsigned short vendor; 2528module_param(vendor, ushort, 0); 2529MODULE_PARM_DESC(vendor, "vendor code (from usb-if)"); 2530 2531static unsigned short product; 2532module_param(product, ushort, 0); 2533MODULE_PARM_DESC(product, "product code (from vendor)"); 2534#endif 2535 2536static int 2537usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) 2538{ 2539 struct usb_device *udev; 2540 struct usbtest_dev *dev; 2541 struct usbtest_info *info; 2542 char *rtest, *wtest; 2543 char *irtest, *iwtest; 2544 char *intrtest, *intwtest; 2545 2546 udev = interface_to_usbdev(intf); 2547 2548#ifdef GENERIC 2549 /* specify devices by module parameters? */ 2550 if (id->match_flags == 0) { 2551 /* vendor match required, product match optional */ 2552 if (!vendor || le16_to_cpu(udev->descriptor.idVendor) != (u16)vendor) 2553 return -ENODEV; 2554 if (product && le16_to_cpu(udev->descriptor.idProduct) != (u16)product) 2555 return -ENODEV; 2556 dev_info(&intf->dev, "matched module params, " 2557 "vend=0x%04x prod=0x%04x\n", 2558 le16_to_cpu(udev->descriptor.idVendor), 2559 le16_to_cpu(udev->descriptor.idProduct)); 2560 } 2561#endif 2562 2563 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 2564 if (!dev) 2565 return -ENOMEM; 2566 info = (struct usbtest_info *) id->driver_info; 2567 dev->info = info; 2568 mutex_init(&dev->lock); 2569 2570 dev->intf = intf; 2571 2572 /* cacheline-aligned scratch for i/o */ 2573 dev->buf = kmalloc(TBUF_SIZE, GFP_KERNEL); 2574 if (dev->buf == NULL) { 2575 kfree(dev); 2576 return -ENOMEM; 2577 } 2578 2579 /* NOTE this doesn't yet test the handful of difference that are 2580 * visible with high speed interrupts: bigger maxpacket (1K) and 2581 * "high bandwidth" modes (up to 3 packets/uframe). 2582 */ 2583 rtest = wtest = ""; 2584 irtest = iwtest = ""; 2585 intrtest = intwtest = ""; 2586 if (force_interrupt || udev->speed == USB_SPEED_LOW) { 2587 if (info->ep_in) { 2588 dev->in_pipe = usb_rcvintpipe(udev, info->ep_in); 2589 rtest = " intr-in"; 2590 } 2591 if (info->ep_out) { 2592 dev->out_pipe = usb_sndintpipe(udev, info->ep_out); 2593 wtest = " intr-out"; 2594 } 2595 } else { 2596 if (override_alt >= 0 || info->autoconf) { 2597 int status; 2598 2599 status = get_endpoints(dev, intf); 2600 if (status < 0) { 2601 WARNING(dev, "couldn't get endpoints, %d\n", 2602 status); 2603 kfree(dev->buf); 2604 kfree(dev); 2605 return status; 2606 } 2607 /* may find bulk or ISO pipes */ 2608 } else { 2609 if (info->ep_in) 2610 dev->in_pipe = usb_rcvbulkpipe(udev, 2611 info->ep_in); 2612 if (info->ep_out) 2613 dev->out_pipe = usb_sndbulkpipe(udev, 2614 info->ep_out); 2615 } 2616 if (dev->in_pipe) 2617 rtest = " bulk-in"; 2618 if (dev->out_pipe) 2619 wtest = " bulk-out"; 2620 if (dev->in_iso_pipe) 2621 irtest = " iso-in"; 2622 if (dev->out_iso_pipe) 2623 iwtest = " iso-out"; 2624 if (dev->in_int_pipe) 2625 intrtest = " int-in"; 2626 if (dev->out_int_pipe) 2627 intwtest = " int-out"; 2628 } 2629 2630 usb_set_intfdata(intf, dev); 2631 dev_info(&intf->dev, "%s\n", info->name); 2632 dev_info(&intf->dev, "%s {control%s%s%s%s%s%s%s} tests%s\n", 2633 usb_speed_string(udev->speed), 2634 info->ctrl_out ? " in/out" : "", 2635 rtest, wtest, 2636 irtest, iwtest, 2637 intrtest, intwtest, 2638 info->alt >= 0 ? " (+alt)" : ""); 2639 return 0; 2640} 2641 2642static int usbtest_suspend(struct usb_interface *intf, pm_message_t message) 2643{ 2644 return 0; 2645} 2646 2647static int usbtest_resume(struct usb_interface *intf) 2648{ 2649 return 0; 2650} 2651 2652 2653static void usbtest_disconnect(struct usb_interface *intf) 2654{ 2655 struct usbtest_dev *dev = usb_get_intfdata(intf); 2656 2657 usb_set_intfdata(intf, NULL); 2658 dev_dbg(&intf->dev, "disconnect\n"); 2659 kfree(dev); 2660} 2661 2662/* Basic testing only needs a device that can source or sink bulk traffic. 2663 * Any device can test control transfers (default with GENERIC binding). 2664 * 2665 * Several entries work with the default EP0 implementation that's built 2666 * into EZ-USB chips. There's a default vendor ID which can be overridden 2667 * by (very) small config EEPROMS, but otherwise all these devices act 2668 * identically until firmware is loaded: only EP0 works. It turns out 2669 * to be easy to make other endpoints work, without modifying that EP0 2670 * behavior. For now, we expect that kind of firmware. 2671 */ 2672 2673/* an21xx or fx versions of ez-usb */ 2674static struct usbtest_info ez1_info = { 2675 .name = "EZ-USB device", 2676 .ep_in = 2, 2677 .ep_out = 2, 2678 .alt = 1, 2679}; 2680 2681/* fx2 version of ez-usb */ 2682static struct usbtest_info ez2_info = { 2683 .name = "FX2 device", 2684 .ep_in = 6, 2685 .ep_out = 2, 2686 .alt = 1, 2687}; 2688 2689/* ezusb family device with dedicated usb test firmware, 2690 */ 2691static struct usbtest_info fw_info = { 2692 .name = "usb test device", 2693 .ep_in = 2, 2694 .ep_out = 2, 2695 .alt = 1, 2696 .autoconf = 1, /* iso and ctrl_out need autoconf */ 2697 .ctrl_out = 1, 2698 .iso = 1, /* iso_ep's are #8 in/out */ 2699}; 2700 2701/* peripheral running Linux and 'zero.c' test firmware, or 2702 * its user-mode cousin. different versions of this use 2703 * different hardware with the same vendor/product codes. 2704 * host side MUST rely on the endpoint descriptors. 2705 */ 2706static struct usbtest_info gz_info = { 2707 .name = "Linux gadget zero", 2708 .autoconf = 1, 2709 .ctrl_out = 1, 2710 .iso = 1, 2711 .intr = 1, 2712 .alt = 0, 2713}; 2714 2715static struct usbtest_info um_info = { 2716 .name = "Linux user mode test driver", 2717 .autoconf = 1, 2718 .alt = -1, 2719}; 2720 2721static struct usbtest_info um2_info = { 2722 .name = "Linux user mode ISO test driver", 2723 .autoconf = 1, 2724 .iso = 1, 2725 .alt = -1, 2726}; 2727 2728#ifdef IBOT2 2729/* this is a nice source of high speed bulk data; 2730 * uses an FX2, with firmware provided in the device 2731 */ 2732static struct usbtest_info ibot2_info = { 2733 .name = "iBOT2 webcam", 2734 .ep_in = 2, 2735 .alt = -1, 2736}; 2737#endif 2738 2739#ifdef GENERIC 2740/* we can use any device to test control traffic */ 2741static struct usbtest_info generic_info = { 2742 .name = "Generic USB device", 2743 .alt = -1, 2744}; 2745#endif 2746 2747 2748static const struct usb_device_id id_table[] = { 2749 2750 /*-------------------------------------------------------------*/ 2751 2752 /* EZ-USB devices which download firmware to replace (or in our 2753 * case augment) the default device implementation. 2754 */ 2755 2756 /* generic EZ-USB FX controller */ 2757 { USB_DEVICE(0x0547, 0x2235), 2758 .driver_info = (unsigned long) &ez1_info, 2759 }, 2760 2761 /* CY3671 development board with EZ-USB FX */ 2762 { USB_DEVICE(0x0547, 0x0080), 2763 .driver_info = (unsigned long) &ez1_info, 2764 }, 2765 2766 /* generic EZ-USB FX2 controller (or development board) */ 2767 { USB_DEVICE(0x04b4, 0x8613), 2768 .driver_info = (unsigned long) &ez2_info, 2769 }, 2770 2771 /* re-enumerated usb test device firmware */ 2772 { USB_DEVICE(0xfff0, 0xfff0), 2773 .driver_info = (unsigned long) &fw_info, 2774 }, 2775 2776 /* "Gadget Zero" firmware runs under Linux */ 2777 { USB_DEVICE(0x0525, 0xa4a0), 2778 .driver_info = (unsigned long) &gz_info, 2779 }, 2780 2781 /* so does a user-mode variant */ 2782 { USB_DEVICE(0x0525, 0xa4a4), 2783 .driver_info = (unsigned long) &um_info, 2784 }, 2785 2786 /* ... and a user-mode variant that talks iso */ 2787 { USB_DEVICE(0x0525, 0xa4a3), 2788 .driver_info = (unsigned long) &um2_info, 2789 }, 2790 2791#ifdef KEYSPAN_19Qi 2792 /* Keyspan 19qi uses an21xx (original EZ-USB) */ 2793 /* this does not coexist with the real Keyspan 19qi driver! */ 2794 { USB_DEVICE(0x06cd, 0x010b), 2795 .driver_info = (unsigned long) &ez1_info, 2796 }, 2797#endif 2798 2799 /*-------------------------------------------------------------*/ 2800 2801#ifdef IBOT2 2802 /* iBOT2 makes a nice source of high speed bulk-in data */ 2803 /* this does not coexist with a real iBOT2 driver! */ 2804 { USB_DEVICE(0x0b62, 0x0059), 2805 .driver_info = (unsigned long) &ibot2_info, 2806 }, 2807#endif 2808 2809 /*-------------------------------------------------------------*/ 2810 2811#ifdef GENERIC 2812 /* module params can specify devices to use for control tests */ 2813 { .driver_info = (unsigned long) &generic_info, }, 2814#endif 2815 2816 /*-------------------------------------------------------------*/ 2817 2818 { } 2819}; 2820MODULE_DEVICE_TABLE(usb, id_table); 2821 2822static struct usb_driver usbtest_driver = { 2823 .name = "usbtest", 2824 .id_table = id_table, 2825 .probe = usbtest_probe, 2826 .unlocked_ioctl = usbtest_ioctl, 2827 .disconnect = usbtest_disconnect, 2828 .suspend = usbtest_suspend, 2829 .resume = usbtest_resume, 2830}; 2831 2832/*-------------------------------------------------------------------------*/ 2833 2834static int __init usbtest_init(void) 2835{ 2836#ifdef GENERIC 2837 if (vendor) 2838 pr_debug("params: vend=0x%04x prod=0x%04x\n", vendor, product); 2839#endif 2840 return usb_register(&usbtest_driver); 2841} 2842module_init(usbtest_init); 2843 2844static void __exit usbtest_exit(void) 2845{ 2846 usb_deregister(&usbtest_driver); 2847} 2848module_exit(usbtest_exit); 2849 2850MODULE_DESCRIPTION("USB Core/HCD Testing Driver"); 2851MODULE_LICENSE("GPL"); 2852 2853