drivers/usb/input/hid-core.c

   1 /*
   2  *  USB HID support for Linux
   3  *
   4  *  Copyright (c) 1999 Andreas Gal
   5  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7  */
   8
   9 /*
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as published by the Free
  12  * Software Foundation; either version 2 of the License, or (at your option)
  13  * any later version.
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/slab.h>
  18 #include <linux/init.h>
  19 #include <linux/kernel.h>
  20 #include <linux/sched.h>
  21 #include <linux/list.h>
  22 #include <linux/mm.h>
  23 #include <linux/smp_lock.h>
  24 #include <linux/spinlock.h>
  25 #include <asm/unaligned.h>
  26 #include <asm/byteorder.h>
  27 #include <linux/input.h>
  28 #include <linux/wait.h>
  29
  30 #undef DEBUG
  31 #undef DEBUG_DATA
  32
  33 #include <linux/usb.h>
  34
  35 #include "hid.h"
  36 #include <linux/hiddev.h>
  37
  38 /*
  39  * Version Information
  40  */
  41
  42 #define DRIVER_VERSION "v2.6"
  43 #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
  44 #define DRIVER_DESC "USB HID core driver"
  45 #define DRIVER_LICENSE "GPL"
  46
  47 static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
  48                                 "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
  49 /*
  50  * Module parameters.
  51  */
  52
  53 static unsigned int hid_mousepoll_interval;
  54 module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
  55 MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
  56
  57 /*
  58  * Register a new report for a device.
  59  */
  60
  61 static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
  62 {
  63         struct hid_report_enum *report_enum = device->report_enum + type;
  64         struct hid_report *report;
  65
  66         if (report_enum->report_id_hash[id])
  67                 return report_enum->report_id_hash[id];
  68
  69         if (!(report = kzalloc(sizeof(struct hid_report), GFP_KERNEL)))
  70                 return NULL;
  71
  72         if (id != 0)
  73                 report_enum->numbered = 1;
  74
  75         report->id = id;
  76         report->type = type;
  77         report->size = 0;
  78         report->device = device;
  79         report_enum->report_id_hash[id] = report;
  80
  81         list_add_tail(&report->list, &report_enum->report_list);
  82
  83         return report;
  84 }
  85
  86 /*
  87  * Register a new field for this report.
  88  */
  89
  90 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
  91 {
  92         struct hid_field *field;
  93
  94         if (report->maxfield == HID_MAX_FIELDS) {
  95                 dbg("too many fields in report");
  96                 return NULL;
  97         }
  98
  99         if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
 100                 + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
 101
 102         field->index = report->maxfield++;
 103         report->field[field->index] = field;
 104         field->usage = (struct hid_usage *)(field + 1);
 105         field->value = (unsigned *)(field->usage + usages);
 106         field->report = report;
 107
 108         return field;
 109 }
 110
 111 /*
 112  * Open a collection. The type/usage is pushed on the stack.
 113  */
 114
 115 static int open_collection(struct hid_parser *parser, unsigned type)
 116 {
 117         struct hid_collection *collection;
 118         unsigned usage;
 119
 120         usage = parser->local.usage[0];
 121
 122         if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
 123                 dbg("collection stack overflow");
 124                 return -1;
 125         }
 126
 127         if (parser->device->maxcollection == parser->device->collection_size) {
 128                 collection = kmalloc(sizeof(struct hid_collection) *
 129                                 parser->device->collection_size * 2, GFP_KERNEL);
 130                 if (collection == NULL) {
 131                         dbg("failed to reallocate collection array");
 132                         return -1;
 133                 }
 134                 memcpy(collection, parser->device->collection,
 135                         sizeof(struct hid_collection) *
 136                         parser->device->collection_size);
 137                 memset(collection + parser->device->collection_size, 0,
 138                         sizeof(struct hid_collection) *
 139                         parser->device->collection_size);
 140                 kfree(parser->device->collection);
 141                 parser->device->collection = collection;
 142                 parser->device->collection_size *= 2;
 143         }
 144
 145         parser->collection_stack[parser->collection_stack_ptr++] =
 146                 parser->device->maxcollection;
 147
 148         collection = parser->device->collection +
 149                 parser->device->maxcollection++;
 150         collection->type = type;
 151         collection->usage = usage;
 152         collection->level = parser->collection_stack_ptr - 1;
 153
 154         if (type == HID_COLLECTION_APPLICATION)
 155                 parser->device->maxapplication++;
 156
 157         return 0;
 158 }
 159
 160 /*
 161  * Close a collection.
 162  */
 163
 164 static int close_collection(struct hid_parser *parser)
 165 {
 166         if (!parser->collection_stack_ptr) {
 167                 dbg("collection stack underflow");
 168                 return -1;
 169         }
 170         parser->collection_stack_ptr--;
 171         return 0;
 172 }
 173
 174 /*
 175  * Climb up the stack, search for the specified collection type
 176  * and return the usage.
 177  */
 178
 179 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 180 {
 181         int n;
 182         for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
 183                 if (parser->device->collection[parser->collection_stack[n]].type == type)
 184                         return parser->device->collection[parser->collection_stack[n]].usage;
 185         return 0; /* we know nothing about this usage type */
 186 }
 187
 188 /*
 189  * Add a usage to the temporary parser table.
 190  */
 191
 192 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 193 {
 194         if (parser->local.usage_index >= HID_MAX_USAGES) {
 195                 dbg("usage index exceeded");
 196                 return -1;
 197         }
 198         parser->local.usage[parser->local.usage_index] = usage;
 199         parser->local.collection_index[parser->local.usage_index] =
 200                 parser->collection_stack_ptr ?
 201                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
 202         parser->local.usage_index++;
 203         return 0;
 204 }
 205
 206 /*
 207  * Register a new field for this report.
 208  */
 209
 210 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
 211 {
 212         struct hid_report *report;
 213         struct hid_field *field;
 214         int usages;
 215         unsigned offset;
 216         int i;
 217
 218         if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
 219                 dbg("hid_register_report failed");
 220                 return -1;
 221         }
 222
 223         if (parser->global.logical_maximum < parser->global.logical_minimum) {
 224                 dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
 225                 return -1;
 226         }
 227
 228         offset = report->size;
 229         report->size += parser->global.report_size * parser->global.report_count;
 230
 231         if (!parser->local.usage_index) /* Ignore padding fields */
 232                 return 0;
 233
 234         usages = max_t(int, parser->local.usage_index, parser->global.report_count);
 235
 236         if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
 237                 return 0;
 238
 239         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
 240         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
 241         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
 242
 243         for (i = 0; i < usages; i++) {
 244                 int j = i;
 245                 /* Duplicate the last usage we parsed if we have excess values */
 246                 if (i >= parser->local.usage_index)
 247                         j = parser->local.usage_index - 1;
 248                 field->usage[i].hid = parser->local.usage[j];
 249                 field->usage[i].collection_index =
 250                         parser->local.collection_index[j];
 251         }
 252
 253         field->maxusage = usages;
 254         field->flags = flags;
 255         field->report_offset = offset;
 256         field->report_type = report_type;
 257         field->report_size = parser->global.report_size;
 258         field->report_count = parser->global.report_count;
 259         field->logical_minimum = parser->global.logical_minimum;
 260         field->logical_maximum = parser->global.logical_maximum;
 261         field->physical_minimum = parser->global.physical_minimum;
 262         field->physical_maximum = parser->global.physical_maximum;
 263         field->unit_exponent = parser->global.unit_exponent;
 264         field->unit = parser->global.unit;
 265
 266         return 0;
 267 }
 268
 269 /*
 270  * Read data value from item.
 271  */
 272
 273 static __inline__ __u32 item_udata(struct hid_item *item)
 274 {
 275         switch (item->size) {
 276                 case 1: return item->data.u8;
 277                 case 2: return item->data.u16;
 278                 case 4: return item->data.u32;
 279         }
 280         return 0;
 281 }
 282
 283 static __inline__ __s32 item_sdata(struct hid_item *item)
 284 {
 285         switch (item->size) {
 286                 case 1: return item->data.s8;
 287                 case 2: return item->data.s16;
 288                 case 4: return item->data.s32;
 289         }
 290         return 0;
 291 }
 292
 293 /*
 294  * Process a global item.
 295  */
 296
 297 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 298 {
 299         switch (item->tag) {
 300
 301                 case HID_GLOBAL_ITEM_TAG_PUSH:
 302
 303                         if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
 304                                 dbg("global enviroment stack overflow");
 305                                 return -1;
 306                         }
 307
 308                         memcpy(parser->global_stack + parser->global_stack_ptr++,
 309                                 &parser->global, sizeof(struct hid_global));
 310                         return 0;
 311
 312                 case HID_GLOBAL_ITEM_TAG_POP:
 313
 314                         if (!parser->global_stack_ptr) {
 315                                 dbg("global enviroment stack underflow");
 316                                 return -1;
 317                         }
 318
 319                         memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
 320                                 sizeof(struct hid_global));
 321                         return 0;
 322
 323                 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
 324                         parser->global.usage_page = item_udata(item);
 325                         return 0;
 326
 327                 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
 328                         parser->global.logical_minimum = item_sdata(item);
 329                         return 0;
 330
 331                 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
 332                         if (parser->global.logical_minimum < 0)
 333                                 parser->global.logical_maximum = item_sdata(item);
 334                         else
 335                                 parser->global.logical_maximum = item_udata(item);
 336                         return 0;
 337
 338                 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
 339                         parser->global.physical_minimum = item_sdata(item);
 340                         return 0;
 341
 342                 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
 343                         if (parser->global.physical_minimum < 0)
 344                                 parser->global.physical_maximum = item_sdata(item);
 345                         else
 346                                 parser->global.physical_maximum = item_udata(item);
 347                         return 0;
 348
 349                 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
 350                         parser->global.unit_exponent = item_sdata(item);
 351                         return 0;
 352
 353                 case HID_GLOBAL_ITEM_TAG_UNIT:
 354                         parser->global.unit = item_udata(item);
 355                         return 0;
 356
 357                 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 358                         if ((parser->global.report_size = item_udata(item)) > 32) {
 359                                 dbg("invalid report_size %d", parser->global.report_size);
 360                                 return -1;
 361                         }
 362                         return 0;
 363
 364                 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 365                         if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
 366                                 dbg("invalid report_count %d", parser->global.report_count);
 367                                 return -1;
 368                         }
 369                         return 0;
 370
 371                 case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 372                         if ((parser->global.report_id = item_udata(item)) == 0) {
 373                                 dbg("report_id 0 is invalid");
 374                                 return -1;
 375                         }
 376                         return 0;
 377
 378                 default:
 379                         dbg("unknown global tag 0x%x", item->tag);
 380                         return -1;
 381         }
 382 }
 383
 384 /*
 385  * Process a local item.
 386  */
 387
 388 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 389 {
 390         __u32 data;
 391         unsigned n;
 392
 393         if (item->size == 0) {
 394                 dbg("item data expected for local item");
 395                 return -1;
 396         }
 397
 398         data = item_udata(item);
 399
 400         switch (item->tag) {
 401
 402                 case HID_LOCAL_ITEM_TAG_DELIMITER:
 403
 404                         if (data) {
 405                                 /*
 406                                  * We treat items before the first delimiter
 407                                  * as global to all usage sets (branch 0).
 408                                  * In the moment we process only these global
 409                                  * items and the first delimiter set.
 410                                  */
 411                                 if (parser->local.delimiter_depth != 0) {
 412                                         dbg("nested delimiters");
 413                                         return -1;
 414                                 }
 415                                 parser->local.delimiter_depth++;
 416                                 parser->local.delimiter_branch++;
 417                         } else {
 418                                 if (parser->local.delimiter_depth < 1) {
 419                                         dbg("bogus close delimiter");
 420                                         return -1;
 421                                 }
 422                                 parser->local.delimiter_depth--;
 423                         }
 424                         return 1;
 425
 426                 case HID_LOCAL_ITEM_TAG_USAGE:
 427
 428                         if (parser->local.delimiter_branch > 1) {
 429                                 dbg("alternative usage ignored");
 430                                 return 0;
 431                         }
 432
 433                         if (item->size <= 2)
 434                                 data = (parser->global.usage_page << 16) + data;
 435
 436                         return hid_add_usage(parser, data);
 437
 438                 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 439
 440                         if (parser->local.delimiter_branch > 1) {
 441                                 dbg("alternative usage ignored");
 442                                 return 0;
 443                         }
 444
 445                         if (item->size <= 2)
 446                                 data = (parser->global.usage_page << 16) + data;
 447
 448                         parser->local.usage_minimum = data;
 449                         return 0;
 450
 451                 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 452
 453                         if (parser->local.delimiter_branch > 1) {
 454                                 dbg("alternative usage ignored");
 455                                 return 0;
 456                         }
 457
 458                         if (item->size <= 2)
 459                                 data = (parser->global.usage_page << 16) + data;
 460
 461                         for (n = parser->local.usage_minimum; n <= data; n++)
 462                                 if (hid_add_usage(parser, n)) {
 463                                         dbg("hid_add_usage failed\n");
 464                                         return -1;
 465                                 }
 466                         return 0;
 467
 468                 default:
 469
 470                         dbg("unknown local item tag 0x%x", item->tag);
 471                         return 0;
 472         }
 473         return 0;
 474 }
 475
 476 /*
 477  * Process a main item.
 478  */
 479
 480 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 481 {
 482         __u32 data;
 483         int ret;
 484
 485         data = item_udata(item);
 486
 487         switch (item->tag) {
 488                 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 489                         ret = open_collection(parser, data & 0xff);
 490                         break;
 491                 case HID_MAIN_ITEM_TAG_END_COLLECTION:
 492                         ret = close_collection(parser);
 493                         break;
 494                 case HID_MAIN_ITEM_TAG_INPUT:
 495                         ret = hid_add_field(parser, HID_INPUT_REPORT, data);
 496                         break;
 497                 case HID_MAIN_ITEM_TAG_OUTPUT:
 498                         ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
 499                         break;
 500                 case HID_MAIN_ITEM_TAG_FEATURE:
 501                         ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 502                         break;
 503                 default:
 504                         dbg("unknown main item tag 0x%x", item->tag);
 505                         ret = 0;
 506         }
 507
 508         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
 509
 510         return ret;
 511 }
 512
 513 /*
 514  * Process a reserved item.
 515  */
 516
 517 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
 518 {
 519         dbg("reserved item type, tag 0x%x", item->tag);
 520         return 0;
 521 }
 522
 523 /*
 524  * Free a report and all registered fields. The field->usage and
 525  * field->value table's are allocated behind the field, so we need
 526  * only to free(field) itself.
 527  */
 528
 529 static void hid_free_report(struct hid_report *report)
 530 {
 531         unsigned n;
 532
 533         for (n = 0; n < report->maxfield; n++)
 534                 kfree(report->field[n]);
 535         kfree(report);
 536 }
 537
 538 /*
 539  * Free a device structure, all reports, and all fields.
 540  */
 541
 542 static void hid_free_device(struct hid_device *device)
 543 {
 544         unsigned i,j;
 545
 546         for (i = 0; i < HID_REPORT_TYPES; i++) {
 547                 struct hid_report_enum *report_enum = device->report_enum + i;
 548
 549                 for (j = 0; j < 256; j++) {
 550                         struct hid_report *report = report_enum->report_id_hash[j];
 551                         if (report)
 552                                 hid_free_report(report);
 553                 }
 554         }
 555
 556         kfree(device->rdesc);
 557         kfree(device);
 558 }
 559
 560 /*
 561  * Fetch a report description item from the data stream. We support long
 562  * items, though they are not used yet.
 563  */
 564
 565 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
 566 {
 567         u8 b;
 568
 569         if ((end - start) <= 0)
 570                 return NULL;
 571
 572         b = *start++;
 573
 574         item->type = (b >> 2) & 3;
 575         item->tag  = (b >> 4) & 15;
 576
 577         if (item->tag == HID_ITEM_TAG_LONG) {
 578
 579                 item->format = HID_ITEM_FORMAT_LONG;
 580
 581                 if ((end - start) < 2)
 582                         return NULL;
 583
 584                 item->size = *start++;
 585                 item->tag  = *start++;
 586
 587                 if ((end - start) < item->size)
 588                         return NULL;
 589
 590                 item->data.longdata = start;
 591                 start += item->size;
 592                 return start;
 593         }
 594
 595         item->format = HID_ITEM_FORMAT_SHORT;
 596         item->size = b & 3;
 597
 598         switch (item->size) {
 599
 600                 case 0:
 601                         return start;
 602
 603                 case 1:
 604                         if ((end - start) < 1)
 605                                 return NULL;
 606                         item->data.u8 = *start++;
 607                         return start;
 608
 609                 case 2:
 610                         if ((end - start) < 2)
 611                                 return NULL;
 612                         item->data.u16 = le16_to_cpu(get_unaligned((__le16*)start));
 613                         start = (__u8 *)((__le16 *)start + 1);
 614                         return start;
 615
 616                 case 3:
 617                         item->size++;
 618                         if ((end - start) < 4)
 619                                 return NULL;
 620                         item->data.u32 = le32_to_cpu(get_unaligned((__le32*)start));
 621                         start = (__u8 *)((__le32 *)start + 1);
 622                         return start;
 623         }
 624
 625         return NULL;
 626 }
 627
 628 /*
 629  * Parse a report description into a hid_device structure. Reports are
 630  * enumerated, fields are attached to these reports.
 631  */
 632
 633 static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
 634 {
 635         struct hid_device *device;
 636         struct hid_parser *parser;
 637         struct hid_item item;
 638         __u8 *end;
 639         unsigned i;
 640         static int (*dispatch_type[])(struct hid_parser *parser,
 641                                       struct hid_item *item) = {
 642                 hid_parser_main,
 643                 hid_parser_global,
 644                 hid_parser_local,
 645                 hid_parser_reserved
 646         };
 647
 648         if (!(device = kzalloc(sizeof(struct hid_device), GFP_KERNEL)))
 649                 return NULL;
 650
 651         if (!(device->collection = kzalloc(sizeof(struct hid_collection) *
 652                                    HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
 653                 kfree(device);
 654                 return NULL;
 655         }
 656         device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
 657
 658         for (i = 0; i < HID_REPORT_TYPES; i++)
 659                 INIT_LIST_HEAD(&device->report_enum[i].report_list);
 660
 661         if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
 662                 kfree(device->collection);
 663                 kfree(device);
 664                 return NULL;
 665         }
 666         memcpy(device->rdesc, start, size);
 667         device->rsize = size;
 668
 669         if (!(parser = kzalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
 670                 kfree(device->rdesc);
 671                 kfree(device->collection);
 672                 kfree(device);
 673                 return NULL;
 674         }
 675         parser->device = device;
 676
 677         end = start + size;
 678         while ((start = fetch_item(start, end, &item)) != NULL) {
 679
 680                 if (item.format != HID_ITEM_FORMAT_SHORT) {
 681                         dbg("unexpected long global item");
 682                         kfree(device->collection);
 683                         hid_free_device(device);
 684                         kfree(parser);
 685                         return NULL;
 686                 }
 687
 688                 if (dispatch_type[item.type](parser, &item)) {
 689                         dbg("item %u %u %u %u parsing failed\n",
 690                                 item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
 691                         kfree(device->collection);
 692                         hid_free_device(device);
 693                         kfree(parser);
 694                         return NULL;
 695                 }
 696
 697                 if (start == end) {
 698                         if (parser->collection_stack_ptr) {
 699                                 dbg("unbalanced collection at end of report description");
 700                                 kfree(device->collection);
 701                                 hid_free_device(device);
 702                                 kfree(parser);
 703                                 return NULL;
 704                         }
 705                         if (parser->local.delimiter_depth) {
 706                                 dbg("unbalanced delimiter at end of report description");
 707                                 kfree(device->collection);
 708                                 hid_free_device(device);
 709                                 kfree(parser);
 710                                 return NULL;
 711                         }
 712                         kfree(parser);
 713                         return device;
 714                 }
 715         }
 716
 717         dbg("item fetching failed at offset %d\n", (int)(end - start));
 718         kfree(device->collection);
 719         hid_free_device(device);
 720         kfree(parser);
 721         return NULL;
 722 }
 723
 724 /*
 725  * Convert a signed n-bit integer to signed 32-bit integer. Common
 726  * cases are done through the compiler, the screwed things has to be
 727  * done by hand.
 728  */
 729
 730 static __inline__ __s32 snto32(__u32 value, unsigned n)
 731 {
 732         switch (n) {
 733                 case 8:  return ((__s8)value);
 734                 case 16: return ((__s16)value);
 735                 case 32: return ((__s32)value);
 736         }
 737         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
 738 }
 739
 740 /*
 741  * Convert a signed 32-bit integer to a signed n-bit integer.
 742  */
 743
 744 static __inline__ __u32 s32ton(__s32 value, unsigned n)
 745 {
 746         __s32 a = value >> (n - 1);
 747         if (a && a != -1)
 748                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
 749         return value & ((1 << n) - 1);
 750 }
 751
 752 /*
 753  * Extract/implement a data field from/to a report.
 754  */
 755
 756 static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
 757 {
 758         report += (offset >> 5) << 2; offset &= 31;
 759         return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1ULL << n) - 1);
 760 }
 761
 762 static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
 763 {
 764         report += (offset >> 5) << 2; offset &= 31;
 765         put_unaligned((get_unaligned((__le64*)report)
 766                 & cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
 767                 | cpu_to_le64((__u64)value << offset), (__le64*)report);
 768 }
 769
 770 /*
 771  * Search an array for a value.
 772  */
 773
 774 static __inline__ int search(__s32 *array, __s32 value, unsigned n)
 775 {
 776         while (n--) {
 777                 if (*array++ == value)
 778                         return 0;
 779         }
 780         return -1;
 781 }
 782
 783 static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, int interrupt)
 784 {
 785         hid_dump_input(usage, value);
 786         if (hid->claimed & HID_CLAIMED_INPUT)
 787                 hidinput_hid_event(hid, field, usage, value);
 788         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt)
 789                 hiddev_hid_event(hid, field, usage, value);
 790 }
 791
 792 /*
 793  * Analyse a received field, and fetch the data from it. The field
 794  * content is stored for next report processing (we do differential
 795  * reporting to the layer).
 796  */
 797
 798 static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, int interrupt)
 799 {
 800         unsigned n;
 801         unsigned count = field->report_count;
 802         unsigned offset = field->report_offset;
 803         unsigned size = field->report_size;
 804         __s32 min = field->logical_minimum;
 805         __s32 max = field->logical_maximum;
 806         __s32 *value;
 807
 808         if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
 809                 return;
 810
 811         for (n = 0; n < count; n++) {
 812
 813                         value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
 814                                                     extract(data, offset + n * size, size);
 815
 816                         if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
 817                             && value[n] >= min && value[n] <= max
 818                             && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
 819                                 goto exit;
 820         }
 821
 822         for (n = 0; n < count; n++) {
 823
 824                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
 825                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
 826                         continue;
 827                 }
 828
 829                 if (field->value[n] >= min && field->value[n] <= max
 830                         && field->usage[field->value[n] - min].hid
 831                         && search(value, field->value[n], count))
 832                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
 833
 834                 if (value[n] >= min && value[n] <= max
 835                         && field->usage[value[n] - min].hid
 836                         && search(field->value, value[n], count))
 837                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
 838         }
 839
 840         memcpy(field->value, value, count * sizeof(__s32));
 841 exit:
 842         kfree(value);
 843 }
 844
 845 static int hid_input_report(int type, struct urb *urb, int interrupt)
 846 {
 847         struct hid_device *hid = urb->context;
 848         struct hid_report_enum *report_enum = hid->report_enum + type;
 849         u8 *data = urb->transfer_buffer;
 850         int len = urb->actual_length;
 851         struct hid_report *report;
 852         int n, size;
 853
 854         if (!len) {
 855                 dbg("empty report");
 856                 return -1;
 857         }
 858
 859 #ifdef DEBUG_DATA
 860         printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
 861 #endif
 862
 863         n = 0;                          /* Normally report number is 0 */
 864         if (report_enum->numbered) {    /* Device uses numbered reports, data[0] is report number */
 865                 n = *data++;
 866                 len--;
 867         }
 868
 869 #ifdef DEBUG_DATA
 870         {
 871                 int i;
 872                 printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len);
 873                 for (i = 0; i < len; i++)
 874                         printk(" %02x", data[i]);
 875                 printk("\n");
 876         }
 877 #endif
 878
 879         if (!(report = report_enum->report_id_hash[n])) {
 880                 dbg("undefined report_id %d received", n);
 881                 return -1;
 882         }
 883
 884         size = ((report->size - 1) >> 3) + 1;
 885
 886         if (len < size) {
 887                 dbg("report %d is too short, (%d < %d)", report->id, len, size);
 888                 memset(data + len, 0, size - len);
 889         }
 890
 891         if (hid->claimed & HID_CLAIMED_HIDDEV)
 892                 hiddev_report_event(hid, report);
 893
 894         for (n = 0; n < report->maxfield; n++)
 895                 hid_input_field(hid, report->field[n], data, interrupt);
 896
 897         if (hid->claimed & HID_CLAIMED_INPUT)
 898                 hidinput_report_event(hid, report);
 899
 900         return 0;
 901 }
 902
 903 /*
 904  * Input submission and I/O error handler.
 905  */
 906
 907 static void hid_io_error(struct hid_device *hid);
 908
 909 /* Start up the input URB */
 910 static int hid_start_in(struct hid_device *hid)
 911 {
 912         unsigned long flags;
 913         int rc = 0;
 914
 915         spin_lock_irqsave(&hid->inlock, flags);
 916         if (hid->open > 0 && !test_bit(HID_SUSPENDED, &hid->iofl) &&
 917                         !test_and_set_bit(HID_IN_RUNNING, &hid->iofl)) {
 918                 rc = usb_submit_urb(hid->urbin, GFP_ATOMIC);
 919                 if (rc != 0)
 920                         clear_bit(HID_IN_RUNNING, &hid->iofl);
 921         }
 922         spin_unlock_irqrestore(&hid->inlock, flags);
 923         return rc;
 924 }
 925
 926 /* I/O retry timer routine */
 927 static void hid_retry_timeout(unsigned long _hid)
 928 {
 929         struct hid_device *hid = (struct hid_device *) _hid;
 930
 931         dev_dbg(&hid->intf->dev, "retrying intr urb\n");
 932         if (hid_start_in(hid))
 933                 hid_io_error(hid);
 934 }
 935
 936 /* Workqueue routine to reset the device */
 937 static void hid_reset(void *_hid)
 938 {
 939         struct hid_device *hid = (struct hid_device *) _hid;
 940         int rc_lock, rc;
 941
 942         dev_dbg(&hid->intf->dev, "resetting device\n");
 943         rc = rc_lock = usb_lock_device_for_reset(hid->dev, hid->intf);
 944         if (rc_lock >= 0) {
 945                 rc = usb_reset_composite_device(hid->dev, hid->intf);
 946                 if (rc_lock)
 947                         usb_unlock_device(hid->dev);
 948         }
 949         clear_bit(HID_RESET_PENDING, &hid->iofl);
 950
 951         switch (rc) {
 952         case 0:
 953                 if (!test_bit(HID_IN_RUNNING, &hid->iofl))
 954                         hid_io_error(hid);
 955                 break;
 956         default:
 957                 err("can't reset device, %s-%s/input%d, status %d",
 958                                 hid->dev->bus->bus_name,
 959                                 hid->dev->devpath,
 960                                 hid->ifnum, rc);
 961                 /* FALLTHROUGH */
 962         case -EHOSTUNREACH:
 963         case -ENODEV:
 964         case -EINTR:
 965                 break;
 966         }
 967 }
 968
 969 /* Main I/O error handler */
 970 static void hid_io_error(struct hid_device *hid)
 971 {
 972         unsigned long flags;
 973
 974         spin_lock_irqsave(&hid->inlock, flags);
 975
 976         /* Stop when disconnected */
 977         if (usb_get_intfdata(hid->intf) == NULL)
 978                 goto done;
 979
 980         /* When an error occurs, retry at increasing intervals */
 981         if (hid->retry_delay == 0) {
 982                 hid->retry_delay = 13;  /* Then 26, 52, 104, 104, ... */
 983                 hid->stop_retry = jiffies + msecs_to_jiffies(1000);
 984         } else if (hid->retry_delay < 100)
 985                 hid->retry_delay *= 2;
 986
 987         if (time_after(jiffies, hid->stop_retry)) {
 988
 989                 /* Retries failed, so do a port reset */
 990                 if (!test_and_set_bit(HID_RESET_PENDING, &hid->iofl)) {
 991                         if (schedule_work(&hid->reset_work))
 992                                 goto done;
 993                         clear_bit(HID_RESET_PENDING, &hid->iofl);
 994                 }
 995         }
 996
 997         mod_timer(&hid->io_retry,
 998                         jiffies + msecs_to_jiffies(hid->retry_delay));
 999 done:
1000         spin_unlock_irqrestore(&hid->inlock, flags);
1001 }
1002
1003 /*
1004  * Input interrupt completion handler.
1005  */
1006
1007 static void hid_irq_in(struct urb *urb)
1008 {
1009         struct hid_device       *hid = urb->context;
1010         int                     status;
1011
1012         switch (urb->status) {
1013                 case 0:                 /* success */
1014                         hid->retry_delay = 0;
1015                         hid_input_report(HID_INPUT_REPORT, urb, 1);
1016                         break;
1017                 case -ECONNRESET:       /* unlink */
1018                 case -ENOENT:
1019                 case -ESHUTDOWN:        /* unplug */
1020                         clear_bit(HID_IN_RUNNING, &hid->iofl);
1021                         return;
1022                 case -EILSEQ:           /* protocol error or unplug */
1023                 case -EPROTO:           /* protocol error or unplug */
1024                 case -ETIME:            /* protocol error or unplug */
1025                 case -ETIMEDOUT:        /* Should never happen, but... */
1026                         clear_bit(HID_IN_RUNNING, &hid->iofl);
1027                         hid_io_error(hid);
1028                         return;
1029                 default:                /* error */
1030                         warn("input irq status %d received", urb->status);
1031         }
1032
1033         status = usb_submit_urb(urb, SLAB_ATOMIC);
1034         if (status) {
1035                 clear_bit(HID_IN_RUNNING, &hid->iofl);
1036                 if (status != -EPERM) {
1037                         err("can't resubmit intr, %s-%s/input%d, status %d",
1038                                         hid->dev->bus->bus_name,
1039                                         hid->dev->devpath,
1040                                         hid->ifnum, status);
1041                         hid_io_error(hid);
1042                 }
1043         }
1044 }
1045
1046 /*
1047  * Output the field into the report.
1048  */
1049
1050 static void hid_output_field(struct hid_field *field, __u8 *data)
1051 {
1052         unsigned count = field->report_count;
1053         unsigned offset = field->report_offset;
1054         unsigned size = field->report_size;
1055         unsigned n;
1056
1057         for (n = 0; n < count; n++) {
1058                 if (field->logical_minimum < 0) /* signed values */
1059                         implement(data, offset + n * size, size, s32ton(field->value[n], size));
1060                 else                            /* unsigned values */
1061                         implement(data, offset + n * size, size, field->value[n]);
1062         }
1063 }
1064
1065 /*
1066  * Create a report.
1067  */
1068
1069 static void hid_output_report(struct hid_report *report, __u8 *data)
1070 {
1071         unsigned n;
1072
1073         if (report->id > 0)
1074                 *data++ = report->id;
1075
1076         for (n = 0; n < report->maxfield; n++)
1077                 hid_output_field(report->field[n], data);
1078 }
1079
1080 /*
1081  * Set a field value. The report this field belongs to has to be
1082  * created and transferred to the device, to set this value in the
1083  * device.
1084  */
1085
1086 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1087 {
1088         unsigned size = field->report_size;
1089
1090         hid_dump_input(field->usage + offset, value);
1091
1092         if (offset >= field->report_count) {
1093                 dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count);
1094                 hid_dump_field(field, 8);
1095                 return -1;
1096         }
1097         if (field->logical_minimum < 0) {
1098                 if (value != snto32(s32ton(value, size), size)) {
1099                         dbg("value %d is out of range", value);
1100                         return -1;
1101                 }
1102         }
1103         field->value[offset] = value;
1104         return 0;
1105 }
1106
1107 /*
1108  * Find a report field with a specified HID usage.
1109  */
1110 #if 0
1111 struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type)
1112 {
1113         struct hid_report *report;
1114         int i;
1115
1116         list_for_each_entry(report, &hid->report_enum[type].report_list, list)
1117                 for (i = 0; i < report->maxfield; i++)
1118                         if (report->field[i]->logical == wanted_usage)
1119                                 return report->field[i];
1120         return NULL;
1121 }
1122 #endif  /*  0  */
1123
1124 static int hid_submit_out(struct hid_device *hid)
1125 {
1126         struct hid_report *report;
1127
1128         report = hid->out[hid->outtail];
1129
1130         hid_output_report(report, hid->outbuf);
1131         hid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1132         hid->urbout->dev = hid->dev;
1133
1134         dbg("submitting out urb");
1135
1136         if (usb_submit_urb(hid->urbout, GFP_ATOMIC)) {
1137                 err("usb_submit_urb(out) failed");
1138                 return -1;
1139         }
1140
1141         return 0;
1142 }
1143
1144 static int hid_submit_ctrl(struct hid_device *hid)
1145 {
1146         struct hid_report *report;
1147         unsigned char dir;
1148         int len;
1149
1150         report = hid->ctrl[hid->ctrltail].report;
1151         dir = hid->ctrl[hid->ctrltail].dir;
1152
1153         len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
1154         if (dir == USB_DIR_OUT) {
1155                 hid_output_report(report, hid->ctrlbuf);
1156                 hid->urbctrl->pipe = usb_sndctrlpipe(hid->dev, 0);
1157                 hid->urbctrl->transfer_buffer_length = len;
1158         } else {
1159                 int maxpacket, padlen;
1160
1161                 hid->urbctrl->pipe = usb_rcvctrlpipe(hid->dev, 0);
1162                 maxpacket = usb_maxpacket(hid->dev, hid->urbctrl->pipe, 0);
1163                 if (maxpacket > 0) {
1164                         padlen = (len + maxpacket - 1) / maxpacket;
1165                         padlen *= maxpacket;
1166                         if (padlen > hid->bufsize)
1167                                 padlen = hid->bufsize;
1168                 } else
1169                         padlen = 0;
1170                 hid->urbctrl->transfer_buffer_length = padlen;
1171         }
1172         hid->urbctrl->dev = hid->dev;
1173
1174         hid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
1175         hid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
1176         hid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
1177         hid->cr->wIndex = cpu_to_le16(hid->ifnum);
1178         hid->cr->wLength = cpu_to_le16(len);
1179
1180         dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u",
1181                 hid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
1182                 hid->cr->wValue, hid->cr->wIndex, hid->cr->wLength);
1183
1184         if (usb_submit_urb(hid->urbctrl, GFP_ATOMIC)) {
1185                 err("usb_submit_urb(ctrl) failed");
1186                 return -1;
1187         }
1188
1189         return 0;
1190 }
1191
1192 /*
1193  * Output interrupt completion handler.
1194  */
1195
1196 static void hid_irq_out(struct urb *urb)
1197 {
1198         struct hid_device *hid = urb->context;
1199         unsigned long flags;
1200         int unplug = 0;
1201
1202         switch (urb->status) {
1203                 case 0:                 /* success */
1204                         break;
1205                 case -ESHUTDOWN:        /* unplug */
1206                         unplug = 1;
1207                 case -EILSEQ:           /* protocol error or unplug */
1208                 case -EPROTO:           /* protocol error or unplug */
1209                 case -ECONNRESET:       /* unlink */
1210                 case -ENOENT:
1211                         break;
1212                 default:                /* error */
1213                         warn("output irq status %d received", urb->status);
1214         }
1215
1216         spin_lock_irqsave(&hid->outlock, flags);
1217
1218         if (unplug)
1219                 hid->outtail = hid->outhead;
1220         else
1221                 hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
1222
1223         if (hid->outhead != hid->outtail) {
1224                 if (hid_submit_out(hid)) {
1225                         clear_bit(HID_OUT_RUNNING, &hid->iofl);
1226                         wake_up(&hid->wait);
1227                 }
1228                 spin_unlock_irqrestore(&hid->outlock, flags);
1229                 return;
1230         }
1231
1232         clear_bit(HID_OUT_RUNNING, &hid->iofl);
1233         spin_unlock_irqrestore(&hid->outlock, flags);
1234         wake_up(&hid->wait);
1235 }
1236
1237 /*
1238  * Control pipe completion handler.
1239  */
1240
1241 static void hid_ctrl(struct urb *urb)
1242 {
1243         struct hid_device *hid = urb->context;
1244         unsigned long flags;
1245         int unplug = 0;
1246
1247         spin_lock_irqsave(&hid->ctrllock, flags);
1248
1249         switch (urb->status) {
1250                 case 0:                 /* success */
1251                         if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN)
1252                                 hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, 0);
1253                         break;
1254                 case -ESHUTDOWN:        /* unplug */
1255                         unplug = 1;
1256                 case -EILSEQ:           /* protocol error or unplug */
1257                 case -EPROTO:           /* protocol error or unplug */
1258                 case -ECONNRESET:       /* unlink */
1259                 case -ENOENT:
1260                 case -EPIPE:            /* report not available */
1261                         break;
1262                 default:                /* error */
1263                         warn("ctrl urb status %d received", urb->status);
1264         }
1265
1266         if (unplug)
1267                 hid->ctrltail = hid->ctrlhead;
1268         else
1269                 hid->ctrltail = (hid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
1270
1271         if (hid->ctrlhead != hid->ctrltail) {
1272                 if (hid_submit_ctrl(hid)) {
1273                         clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1274                         wake_up(&hid->wait);
1275                 }
1276                 spin_unlock_irqrestore(&hid->ctrllock, flags);
1277                 return;
1278         }
1279
1280         clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1281         spin_unlock_irqrestore(&hid->ctrllock, flags);
1282         wake_up(&hid->wait);
1283 }
1284
1285 void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
1286 {
1287         int head;
1288         unsigned long flags;
1289
1290         if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN)
1291                 return;
1292
1293         if (hid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
1294
1295                 spin_lock_irqsave(&hid->outlock, flags);
1296
1297                 if ((head = (hid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == hid->outtail) {
1298                         spin_unlock_irqrestore(&hid->outlock, flags);
1299                         warn("output queue full");
1300                         return;
1301                 }
1302
1303                 hid->out[hid->outhead] = report;
1304                 hid->outhead = head;
1305
1306                 if (!test_and_set_bit(HID_OUT_RUNNING, &hid->iofl))
1307                         if (hid_submit_out(hid))
1308                                 clear_bit(HID_OUT_RUNNING, &hid->iofl);
1309
1310                 spin_unlock_irqrestore(&hid->outlock, flags);
1311                 return;
1312         }
1313
1314         spin_lock_irqsave(&hid->ctrllock, flags);
1315
1316         if ((head = (hid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == hid->ctrltail) {
1317                 spin_unlock_irqrestore(&hid->ctrllock, flags);
1318                 warn("control queue full");
1319                 return;
1320         }
1321
1322         hid->ctrl[hid->ctrlhead].report = report;
1323         hid->ctrl[hid->ctrlhead].dir = dir;
1324         hid->ctrlhead = head;
1325
1326         if (!test_and_set_bit(HID_CTRL_RUNNING, &hid->iofl))
1327                 if (hid_submit_ctrl(hid))
1328                         clear_bit(HID_CTRL_RUNNING, &hid->iofl);
1329
1330         spin_unlock_irqrestore(&hid->ctrllock, flags);
1331 }
1332
1333 int hid_wait_io(struct hid_device *hid)
1334 {
1335         if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &hid->iofl) &&
1336                                         !test_bit(HID_OUT_RUNNING, &hid->iofl)),
1337                                         10*HZ)) {
1338                 dbg("timeout waiting for ctrl or out queue to clear");
1339                 return -1;
1340         }
1341
1342         return 0;
1343 }
1344
1345 static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle)
1346 {
1347         return usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
1348                 HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, (idle << 8) | report,
1349                 ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
1350 }
1351
1352 static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
1353                 unsigned char type, void *buf, int size)
1354 {
1355         int result, retries = 4;
1356
1357         memset(buf,0,size);     // Make sure we parse really received data
1358
1359         do {
1360                 result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
1361                                 USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN,
1362                                 (type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT);
1363                 retries--;
1364         } while (result < size && retries);
1365         return result;
1366 }
1367
1368 int hid_open(struct hid_device *hid)
1369 {
1370         ++hid->open;
1371         if (hid_start_in(hid))
1372                 hid_io_error(hid);
1373         return 0;
1374 }
1375
1376 void hid_close(struct hid_device *hid)
1377 {
1378         if (!--hid->open)
1379                 usb_kill_urb(hid->urbin);
1380 }
1381
1382 #define USB_VENDOR_ID_PANJIT            0x134c
1383
1384 /*
1385  * Initialize all reports
1386  */
1387
1388 void hid_init_reports(struct hid_device *hid)
1389 {
1390         struct hid_report *report;
1391         int err, ret;
1392
1393         list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list)
1394                 hid_submit_report(hid, report, USB_DIR_IN);
1395
1396         list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list)
1397                 hid_submit_report(hid, report, USB_DIR_IN);
1398
1399         err = 0;
1400         ret = hid_wait_io(hid);
1401         while (ret) {
1402                 err |= ret;
1403                 if (test_bit(HID_CTRL_RUNNING, &hid->iofl))
1404                         usb_kill_urb(hid->urbctrl);
1405                 if (test_bit(HID_OUT_RUNNING, &hid->iofl))
1406                         usb_kill_urb(hid->urbout);
1407                 ret = hid_wait_io(hid);
1408         }
1409
1410         if (err)
1411                 warn("timeout initializing reports");
1412 }
1413
1414 #define USB_VENDOR_ID_GTCO              0x078c
1415 #define USB_DEVICE_ID_GTCO_90           0x0090
1416 #define USB_DEVICE_ID_GTCO_100          0x0100
1417 #define USB_DEVICE_ID_GTCO_101          0x0101
1418 #define USB_DEVICE_ID_GTCO_103          0x0103
1419 #define USB_DEVICE_ID_GTCO_104          0x0104
1420 #define USB_DEVICE_ID_GTCO_105          0x0105
1421 #define USB_DEVICE_ID_GTCO_106          0x0106
1422 #define USB_DEVICE_ID_GTCO_107          0x0107
1423 #define USB_DEVICE_ID_GTCO_108          0x0108
1424 #define USB_DEVICE_ID_GTCO_200          0x0200
1425 #define USB_DEVICE_ID_GTCO_201          0x0201
1426 #define USB_DEVICE_ID_GTCO_202          0x0202
1427 #define USB_DEVICE_ID_GTCO_203          0x0203
1428 #define USB_DEVICE_ID_GTCO_204          0x0204
1429 #define USB_DEVICE_ID_GTCO_205          0x0205
1430 #define USB_DEVICE_ID_GTCO_206          0x0206
1431 #define USB_DEVICE_ID_GTCO_207          0x0207
1432 #define USB_DEVICE_ID_GTCO_300          0x0300
1433 #define USB_DEVICE_ID_GTCO_301          0x0301
1434 #define USB_DEVICE_ID_GTCO_302          0x0302
1435 #define USB_DEVICE_ID_GTCO_303          0x0303
1436 #define USB_DEVICE_ID_GTCO_304          0x0304
1437 #define USB_DEVICE_ID_GTCO_305          0x0305
1438 #define USB_DEVICE_ID_GTCO_306          0x0306
1439 #define USB_DEVICE_ID_GTCO_307          0x0307
1440 #define USB_DEVICE_ID_GTCO_308          0x0308
1441 #define USB_DEVICE_ID_GTCO_309          0x0309
1442 #define USB_DEVICE_ID_GTCO_400          0x0400
1443 #define USB_DEVICE_ID_GTCO_401          0x0401
1444 #define USB_DEVICE_ID_GTCO_402          0x0402
1445 #define USB_DEVICE_ID_GTCO_403          0x0403
1446 #define USB_DEVICE_ID_GTCO_404          0x0404
1447 #define USB_DEVICE_ID_GTCO_405          0x0405
1448 #define USB_DEVICE_ID_GTCO_500          0x0500
1449 #define USB_DEVICE_ID_GTCO_501          0x0501
1450 #define USB_DEVICE_ID_GTCO_502          0x0502
1451 #define USB_DEVICE_ID_GTCO_503          0x0503
1452 #define USB_DEVICE_ID_GTCO_504          0x0504
1453 #define USB_DEVICE_ID_GTCO_1000         0x1000
1454 #define USB_DEVICE_ID_GTCO_1001         0x1001
1455 #define USB_DEVICE_ID_GTCO_1002         0x1002
1456 #define USB_DEVICE_ID_GTCO_1003         0x1003
1457 #define USB_DEVICE_ID_GTCO_1004         0x1004
1458 #define USB_DEVICE_ID_GTCO_1005         0x1005
1459 #define USB_DEVICE_ID_GTCO_1006         0x1006
1460
1461 #define USB_VENDOR_ID_WACOM             0x056a
1462
1463 #define USB_VENDOR_ID_ACECAD            0x0460
1464 #define USB_DEVICE_ID_ACECAD_FLAIR      0x0004
1465 #define USB_DEVICE_ID_ACECAD_302        0x0008
1466
1467 #define USB_VENDOR_ID_KBGEAR            0x084e
1468 #define USB_DEVICE_ID_KBGEAR_JAMSTUDIO  0x1001
1469
1470 #define USB_VENDOR_ID_AIPTEK            0x08ca
1471 #define USB_DEVICE_ID_AIPTEK_01         0x0001
1472 #define USB_DEVICE_ID_AIPTEK_10         0x0010
1473 #define USB_DEVICE_ID_AIPTEK_20         0x0020
1474 #define USB_DEVICE_ID_AIPTEK_21         0x0021
1475 #define USB_DEVICE_ID_AIPTEK_22         0x0022
1476 #define USB_DEVICE_ID_AIPTEK_23         0x0023
1477 #define USB_DEVICE_ID_AIPTEK_24         0x0024
1478
1479 #define USB_VENDOR_ID_GRIFFIN           0x077d
1480 #define USB_DEVICE_ID_POWERMATE         0x0410
1481 #define USB_DEVICE_ID_SOUNDKNOB         0x04AA
1482
1483 #define USB_VENDOR_ID_ATEN              0x0557
1484 #define USB_DEVICE_ID_ATEN_UC100KM      0x2004
1485 #define USB_DEVICE_ID_ATEN_CS124U       0x2202
1486 #define USB_DEVICE_ID_ATEN_2PORTKVM     0x2204
1487 #define USB_DEVICE_ID_ATEN_4PORTKVM     0x2205
1488 #define USB_DEVICE_ID_ATEN_4PORTKVMC    0x2208
1489
1490 #define USB_VENDOR_ID_TOPMAX            0x0663
1491 #define USB_DEVICE_ID_TOPMAX_COBRAPAD   0x0103
1492
1493 #define USB_VENDOR_ID_HAPP              0x078b
1494 #define USB_DEVICE_ID_UGCI_DRIVING      0x0010
1495 #define USB_DEVICE_ID_UGCI_FLYING       0x0020
1496 #define USB_DEVICE_ID_UGCI_FIGHTING     0x0030
1497
1498 #define USB_VENDOR_ID_MGE               0x0463
1499 #define USB_DEVICE_ID_MGE_UPS           0xffff
1500 #define USB_DEVICE_ID_MGE_UPS1          0x0001
1501
1502 #define USB_VENDOR_ID_ONTRAK            0x0a07
1503 #define USB_DEVICE_ID_ONTRAK_ADU100     0x0064
1504
1505 #define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
1506 #define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
1507
1508 #define USB_VENDOR_ID_A4TECH            0x09da
1509 #define USB_DEVICE_ID_A4TECH_WCP32PU    0x0006
1510
1511 #define USB_VENDOR_ID_AASHIMA           0x06d6
1512 #define USB_DEVICE_ID_AASHIMA_GAMEPAD   0x0025
1513 #define USB_DEVICE_ID_AASHIMA_PREDATOR  0x0026
1514
1515 #define USB_VENDOR_ID_CYPRESS           0x04b4
1516 #define USB_DEVICE_ID_CYPRESS_MOUSE     0x0001
1517 #define USB_DEVICE_ID_CYPRESS_HIDCOM    0x5500
1518 #define USB_DEVICE_ID_CYPRESS_ULTRAMOUSE        0x7417
1519
1520 #define USB_VENDOR_ID_BERKSHIRE         0x0c98
1521 #define USB_DEVICE_ID_BERKSHIRE_PCWD    0x1140
1522
1523 #define USB_VENDOR_ID_ALPS              0x0433
1524 #define USB_DEVICE_ID_IBM_GAMEPAD       0x1101
1525
1526 #define USB_VENDOR_ID_SAITEK            0x06a3
1527 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD  0xff17
1528
1529 #define USB_VENDOR_ID_NEC               0x073e
1530 #define USB_DEVICE_ID_NEC_USB_GAME_PAD  0x0301
1531
1532 #define USB_VENDOR_ID_CHIC              0x05fe
1533 #define USB_DEVICE_ID_CHIC_GAMEPAD      0x0014
1534
1535 #define USB_VENDOR_ID_GLAB              0x06c2
1536 #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
1537 #define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
1538 #define USB_DEVICE_ID_0_0_4_IF_KIT      0x0040
1539 #define USB_DEVICE_ID_0_16_16_IF_KIT    0x0044
1540 #define USB_DEVICE_ID_8_8_8_IF_KIT      0x0045
1541 #define USB_DEVICE_ID_0_8_7_IF_KIT      0x0051
1542 #define USB_DEVICE_ID_0_8_8_IF_KIT      0x0053
1543 #define USB_DEVICE_ID_PHIDGET_MOTORCONTROL      0x0058
1544
1545 #define USB_VENDOR_ID_WISEGROUP         0x0925
1546 #define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
1547 #define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
1548 #define USB_DEVICE_ID_8_8_4_IF_KIT      0x8201
1549 #define USB_DEVICE_ID_DUAL_USB_JOYPAD   0x8866
1550
1551 #define USB_VENDOR_ID_WISEGROUP_LTD     0x6677
1552 #define USB_DEVICE_ID_SMARTJOY_DUAL_PLUS 0x8802
1553
1554 #define USB_VENDOR_ID_CODEMERCS         0x07c0
1555 #define USB_DEVICE_ID_CODEMERCS_IOW40   0x1500
1556 #define USB_DEVICE_ID_CODEMERCS_IOW24   0x1501
1557 #define USB_DEVICE_ID_CODEMERCS_IOW48   0x1502
1558 #define USB_DEVICE_ID_CODEMERCS_IOW28   0x1503
1559
1560 #define USB_VENDOR_ID_DELORME           0x1163
1561 #define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
1562 #define USB_DEVICE_ID_DELORME_EM_LT20   0x0200
1563
1564 #define USB_VENDOR_ID_MCC               0x09db
1565 #define USB_DEVICE_ID_MCC_PMD1024LS     0x0076
1566 #define USB_DEVICE_ID_MCC_PMD1208LS     0x007a
1567
1568 #define USB_VENDOR_ID_VERNIER           0x08f7
1569 #define USB_DEVICE_ID_VERNIER_LABPRO    0x0001
1570 #define USB_DEVICE_ID_VERNIER_GOTEMP    0x0002
1571 #define USB_DEVICE_ID_VERNIER_SKIP      0x0003
1572 #define USB_DEVICE_ID_VERNIER_CYCLOPS   0x0004
1573
1574 #define USB_VENDOR_ID_LD                0x0f11
1575 #define USB_DEVICE_ID_LD_CASSY          0x1000
1576 #define USB_DEVICE_ID_LD_POCKETCASSY    0x1010
1577 #define USB_DEVICE_ID_LD_MOBILECASSY    0x1020
1578 #define USB_DEVICE_ID_LD_JWM            0x1080
1579 #define USB_DEVICE_ID_LD_DMMP           0x1081
1580 #define USB_DEVICE_ID_LD_UMIP           0x1090
1581 #define USB_DEVICE_ID_LD_XRAY1          0x1100
1582 #define USB_DEVICE_ID_LD_XRAY2          0x1101
1583 #define USB_DEVICE_ID_LD_VIDEOCOM       0x1200
1584 #define USB_DEVICE_ID_LD_COM3LAB        0x2000
1585 #define USB_DEVICE_ID_LD_TELEPORT       0x2010
1586 #define USB_DEVICE_ID_LD_NETWORKANALYSER 0x2020
1587 #define USB_DEVICE_ID_LD_POWERCONTROL   0x2030
1588 #define USB_DEVICE_ID_LD_MACHINETEST    0x2040
1589
1590 #define USB_VENDOR_ID_APPLE             0x05ac
1591 #define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
1592
1593 #define USB_VENDOR_ID_CHERRY            0x046a
1594 #define USB_DEVICE_ID_CHERRY_CYMOTION   0x0023
1595
1596 #define USB_VENDOR_ID_YEALINK           0x6993
1597 #define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K       0xb001
1598
1599 #define USB_VENDOR_ID_ALCOR             0x058f
1600 #define USB_DEVICE_ID_ALCOR_USBRS232    0x9720
1601
1602 #define USB_VENDOR_ID_SUN               0x0430
1603 #define USB_DEVICE_ID_RARITAN_KVM_DONGLE        0xcdab
1604
1605 /*
1606  * Alphabetically sorted blacklist by quirk type.
1607  */
1608
1609 static const struct hid_blacklist {
1610         __u16 idVendor;
1611         __u16 idProduct;
1612         unsigned quirks;
1613 } hid_blacklist[] = {
1614
1615         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE },
1616         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE },
1617         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE },
1618         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21, HID_QUIRK_IGNORE },
1619         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE },
1620         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
1621         { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
1622         { USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232, HID_QUIRK_IGNORE },
1623         { USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE },
1624         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE },
1625         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE },
1626         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW48, HID_QUIRK_IGNORE },
1627         { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW28, HID_QUIRK_IGNORE },
1628         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM, HID_QUIRK_IGNORE },
1629         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE, HID_QUIRK_IGNORE },
1630         { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE, HID_QUIRK_IGNORE },
1631         { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20, HID_QUIRK_IGNORE },
1632         { USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
1633         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1634         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
1635         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE },
1636         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT, HID_QUIRK_IGNORE },
1637         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE },
1638         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT, HID_QUIRK_IGNORE },
1639         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE },
1640         { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL, HID_QUIRK_IGNORE },
1641         { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },
1642         { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },
1643         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90, HID_QUIRK_IGNORE },
1644         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100, HID_QUIRK_IGNORE },
1645         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101, HID_QUIRK_IGNORE },
1646         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103, HID_QUIRK_IGNORE },
1647         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104, HID_QUIRK_IGNORE },
1648         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105, HID_QUIRK_IGNORE },
1649         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106, HID_QUIRK_IGNORE },
1650         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107, HID_QUIRK_IGNORE },
1651         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108, HID_QUIRK_IGNORE },
1652         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200, HID_QUIRK_IGNORE },
1653         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201, HID_QUIRK_IGNORE },
1654         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202, HID_QUIRK_IGNORE },
1655         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203, HID_QUIRK_IGNORE },
1656         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204, HID_QUIRK_IGNORE },
1657         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205, HID_QUIRK_IGNORE },
1658         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206, HID_QUIRK_IGNORE },
1659         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207, HID_QUIRK_IGNORE },
1660         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300, HID_QUIRK_IGNORE },
1661         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301, HID_QUIRK_IGNORE },
1662         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302, HID_QUIRK_IGNORE },
1663         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303, HID_QUIRK_IGNORE },
1664         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304, HID_QUIRK_IGNORE },
1665         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305, HID_QUIRK_IGNORE },
1666         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306, HID_QUIRK_IGNORE },
1667         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307, HID_QUIRK_IGNORE },
1668         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308, HID_QUIRK_IGNORE },
1669         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309, HID_QUIRK_IGNORE },
1670         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400, HID_QUIRK_IGNORE },
1671         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401, HID_QUIRK_IGNORE },
1672         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402, HID_QUIRK_IGNORE },
1673         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403, HID_QUIRK_IGNORE },
1674         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404, HID_QUIRK_IGNORE },
1675         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405, HID_QUIRK_IGNORE },
1676         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500, HID_QUIRK_IGNORE },
1677         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501, HID_QUIRK_IGNORE },
1678         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502, HID_QUIRK_IGNORE },
1679         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503, HID_QUIRK_IGNORE },
1680         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504, HID_QUIRK_IGNORE },
1681         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000, HID_QUIRK_IGNORE },
1682         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001, HID_QUIRK_IGNORE },
1683         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002, HID_QUIRK_IGNORE },
1684         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003, HID_QUIRK_IGNORE },
1685         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004, HID_QUIRK_IGNORE },
1686         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005, HID_QUIRK_IGNORE },
1687         { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006, HID_QUIRK_IGNORE },
1688         { USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
1689         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY, HID_QUIRK_IGNORE },
1690         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY, HID_QUIRK_IGNORE },
1691         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY, HID_QUIRK_IGNORE },
1692         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM, HID_QUIRK_IGNORE },
1693         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP, HID_QUIRK_IGNORE },
1694         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP, HID_QUIRK_IGNORE },
1695         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1, HID_QUIRK_IGNORE },
1696         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2, HID_QUIRK_IGNORE },
1697         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM, HID_QUIRK_IGNORE },
1698         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB, HID_QUIRK_IGNORE },
1699         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT, HID_QUIRK_IGNORE },
1700         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER, HID_QUIRK_IGNORE },
1701         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL, HID_QUIRK_IGNORE },
1702         { USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST, HID_QUIRK_IGNORE },
1703         { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS, HID_QUIRK_IGNORE },
1704         { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS, HID_QUIRK_IGNORE },
1705         { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
1706         { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
1707         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
1708         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20, HID_QUIRK_IGNORE },
1709         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30, HID_QUIRK_IGNORE },
1710         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
1711         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108, HID_QUIRK_IGNORE },
1712         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118, HID_QUIRK_IGNORE },
1713         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
1714         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
1715         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
1716         { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
1717         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO, HID_QUIRK_IGNORE },
1718         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE },
1719         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE },
1720         { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE },
1721         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1722         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
1723         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT, HID_QUIRK_IGNORE },
1724         { USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K, HID_QUIRK_IGNORE },
1725
1726         { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR, HID_QUIRK_IGNORE },
1727         { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302, HID_QUIRK_IGNORE },
1728
1729         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
1730         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
1731         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
1732         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
1733         { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
1734         { USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
1735         { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
1736         { USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS, HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
1737
1738         { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE, HID_QUIRK_MIGHTYMOUSE | HID_QUIRK_INVERT_HWHEEL },
1739         { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 },
1740         { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_5 },
1741
1742         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },
1743         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
1744         { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
1745         { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
1746         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1747         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1748         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
1749         { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
1750         { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
1751         { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
1752
1753         { USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION, HID_QUIRK_CYMOTION },
1754
1755         { USB_VENDOR_ID_APPLE, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN },
1756         { USB_VENDOR_ID_APPLE, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN },
1757         { USB_VENDOR_ID_APPLE, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN },
1758         { USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN },
1759         { USB_VENDOR_ID_APPLE, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN },
1760         { USB_VENDOR_ID_APPLE, 0x0217, HID_QUIRK_POWERBOOK_HAS_FN },
1761         { USB_VENDOR_ID_APPLE, 0x0218, HID_QUIRK_POWERBOOK_HAS_FN },
1762         { USB_VENDOR_ID_APPLE, 0x0219, HID_QUIRK_POWERBOOK_HAS_FN },
1763         { USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN },
1764         { USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN },
1765
1766         { USB_VENDOR_ID_PANJIT, 0x0001, HID_QUIRK_IGNORE },
1767         { USB_VENDOR_ID_PANJIT, 0x0002, HID_QUIRK_IGNORE },
1768         { USB_VENDOR_ID_PANJIT, 0x0003, HID_QUIRK_IGNORE },
1769         { USB_VENDOR_ID_PANJIT, 0x0004, HID_QUIRK_IGNORE },
1770
1771         { 0, 0 }
1772 };
1773
1774 /*
1775  * Traverse the supplied list of reports and find the longest
1776  */
1777 static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max)
1778 {
1779         struct hid_report *report;
1780         int size;
1781
1782         list_for_each_entry(report, &hid->report_enum[type].report_list, list) {
1783                 size = ((report->size - 1) >> 3) + 1;
1784                 if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered)
1785                         size++;
1786                 if (*max < size)
1787                         *max = size;
1788         }
1789 }
1790
1791 static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
1792 {
1793         if (!(hid->inbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->inbuf_dma)))
1794                 return -1;
1795         if (!(hid->outbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->outbuf_dma)))
1796                 return -1;
1797         if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma)))
1798                 return -1;
1799         if (!(hid->ctrlbuf = usb_buffer_alloc(dev, hid->bufsize, SLAB_ATOMIC, &hid->ctrlbuf_dma)))
1800                 return -1;
1801
1802         return 0;
1803 }
1804
1805 static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
1806 {
1807         if (hid->inbuf)
1808                 usb_buffer_free(dev, hid->bufsize, hid->inbuf, hid->inbuf_dma);
1809         if (hid->outbuf)
1810                 usb_buffer_free(dev, hid->bufsize, hid->outbuf, hid->outbuf_dma);
1811         if (hid->cr)
1812                 usb_buffer_free(dev, sizeof(*(hid->cr)), hid->cr, hid->cr_dma);
1813         if (hid->ctrlbuf)
1814                 usb_buffer_free(dev, hid->bufsize, hid->ctrlbuf, hid->ctrlbuf_dma);
1815 }
1816
1817 /*
1818  * Cherry Cymotion keyboard have an invalid HID report descriptor,
1819  * that needs fixing before we can parse it.
1820  */
1821
1822 static void hid_fixup_cymotion_descriptor(char *rdesc, int rsize)
1823 {
1824         if (rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
1825                 info("Fixing up Cherry Cymotion report descriptor");
1826                 rdesc[11] = rdesc[16] = 0xff;
1827                 rdesc[12] = rdesc[17] = 0x03;
1828         }
1829 }
1830
1831 static struct hid_device *usb_hid_configure(struct usb_interface *intf)
1832 {
1833         struct usb_host_interface *interface = intf->cur_altsetting;
1834         struct usb_device *dev = interface_to_usbdev (intf);
1835         struct hid_descriptor *hdesc;
1836         struct hid_device *hid;
1837         unsigned quirks = 0, rsize = 0;
1838         char *rdesc;
1839         int n, len, insize = 0;
1840
1841         /* Ignore all Wacom devices */
1842         if (le16_to_cpu(dev->descriptor.idVendor) == USB_VENDOR_ID_WACOM)
1843                 return NULL;
1844
1845         for (n = 0; hid_blacklist[n].idVendor; n++)
1846                 if ((hid_blacklist[n].idVendor == le16_to_cpu(dev->descriptor.idVendor)) &&
1847                         (hid_blacklist[n].idProduct == le16_to_cpu(dev->descriptor.idProduct)))
1848                                 quirks = hid_blacklist[n].quirks;
1849
1850         /* Many keyboards and mice don't like to be polled for reports,
1851          * so we will always set the HID_QUIRK_NOGET flag for them. */
1852         if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT) {
1853                 if (interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_KEYBOARD ||
1854                         interface->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE)
1855                                 quirks |= HID_QUIRK_NOGET;
1856         }
1857
1858         if (quirks & HID_QUIRK_IGNORE)
1859                 return NULL;
1860
1861         if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) &&
1862             (!interface->desc.bNumEndpoints ||
1863              usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {
1864                 dbg("class descriptor not present\n");
1865                 return NULL;
1866         }
1867
1868         for (n = 0; n < hdesc->bNumDescriptors; n++)
1869                 if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
1870                         rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
1871
1872         if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
1873                 dbg("weird size of report descriptor (%u)", rsize);
1874                 return NULL;
1875         }
1876
1877         if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {
1878                 dbg("couldn't allocate rdesc memory");
1879                 return NULL;
1880         }
1881
1882         hid_set_idle(dev, interface->desc.bInterfaceNumber, 0, 0);
1883
1884         if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
1885                 dbg("reading report descriptor failed");
1886                 kfree(rdesc);
1887                 return NULL;
1888         }
1889
1890         if ((quirks & HID_QUIRK_CYMOTION))
1891                 hid_fixup_cymotion_descriptor(rdesc, rsize);
1892
1893 #ifdef DEBUG_DATA
1894         printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
1895         for (n = 0; n < rsize; n++)
1896                 printk(" %02x", (unsigned char) rdesc[n]);
1897         printk("\n");
1898 #endif
1899
1900         if (!(hid = hid_parse_report(rdesc, n))) {
1901                 dbg("parsing report descriptor failed");
1902                 kfree(rdesc);
1903                 return NULL;
1904         }
1905
1906         kfree(rdesc);
1907         hid->quirks = quirks;
1908
1909         hid->bufsize = HID_MIN_BUFFER_SIZE;
1910         hid_find_max_report(hid, HID_INPUT_REPORT, &hid->bufsize);
1911         hid_find_max_report(hid, HID_OUTPUT_REPORT, &hid->bufsize);
1912         hid_find_max_report(hid, HID_FEATURE_REPORT, &hid->bufsize);
1913
1914         if (hid->bufsize > HID_MAX_BUFFER_SIZE)
1915                 hid->bufsize = HID_MAX_BUFFER_SIZE;
1916
1917         hid_find_max_report(hid, HID_INPUT_REPORT, &insize);
1918
1919         if (insize > HID_MAX_BUFFER_SIZE)
1920                 insize = HID_MAX_BUFFER_SIZE;
1921
1922         if (hid_alloc_buffers(dev, hid)) {
1923                 hid_free_buffers(dev, hid);
1924                 goto fail;
1925         }
1926
1927         for (n = 0; n < interface->desc.bNumEndpoints; n++) {
1928
1929                 struct usb_endpoint_descriptor *endpoint;
1930                 int pipe;
1931                 int interval;
1932
1933                 endpoint = &interface->endpoint[n].desc;
1934                 if ((endpoint->bmAttributes & 3) != 3)          /* Not an interrupt endpoint */
1935                         continue;
1936
1937                 interval = endpoint->bInterval;
1938
1939                 /* Change the polling interval of mice. */
1940                 if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
1941                         interval = hid_mousepoll_interval;
1942
1943                 if (endpoint->bEndpointAddress & USB_DIR_IN) {
1944                         if (hid->urbin)
1945                                 continue;
1946                         if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL)))
1947                                 goto fail;
1948                         pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
1949                         usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, insize,
1950                                          hid_irq_in, hid, interval);
1951                         hid->urbin->transfer_dma = hid->inbuf_dma;
1952                         hid->urbin->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1953                 } else {
1954                         if (hid->urbout)
1955                                 continue;
1956                         if (!(hid->urbout = usb_alloc_urb(0, GFP_KERNEL)))
1957                                 goto fail;
1958                         pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress);
1959                         usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0,
1960                                          hid_irq_out, hid, interval);
1961                         hid->urbout->transfer_dma = hid->outbuf_dma;
1962                         hid->urbout->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1963                 }
1964         }
1965
1966         if (!hid->urbin) {
1967                 err("couldn't find an input interrupt endpoint");
1968                 goto fail;
1969         }
1970
1971         init_waitqueue_head(&hid->wait);
1972
1973         INIT_WORK(&hid->reset_work, hid_reset, hid);
1974         setup_timer(&hid->io_retry, hid_retry_timeout, (unsigned long) hid);
1975
1976         spin_lock_init(&hid->inlock);
1977         spin_lock_init(&hid->outlock);
1978         spin_lock_init(&hid->ctrllock);
1979
1980         hid->version = le16_to_cpu(hdesc->bcdHID);
1981         hid->country = hdesc->bCountryCode;
1982         hid->dev = dev;
1983         hid->intf = intf;
1984         hid->ifnum = interface->desc.bInterfaceNumber;
1985
1986         hid->name[0] = 0;
1987
1988         if (dev->manufacturer)
1989                 strlcpy(hid->name, dev->manufacturer, sizeof(hid->name));
1990
1991         if (dev->product) {
1992                 if (dev->manufacturer)
1993                         strlcat(hid->name, " ", sizeof(hid->name));
1994                 strlcat(hid->name, dev->product, sizeof(hid->name));
1995         }
1996
1997         if (!strlen(hid->name))
1998                 snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
1999                          le16_to_cpu(dev->descriptor.idVendor),
2000                          le16_to_cpu(dev->descriptor.idProduct));
2001
2002         usb_make_path(dev, hid->phys, sizeof(hid->phys));
2003         strlcat(hid->phys, "/input", sizeof(hid->phys));
2004         len = strlen(hid->phys);
2005         if (len < sizeof(hid->phys) - 1)
2006                 snprintf(hid->phys + len, sizeof(hid->phys) - len,
2007                          "%d", intf->altsetting[0].desc.bInterfaceNumber);
2008
2009         if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
2010                 hid->uniq[0] = 0;
2011
2012         hid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
2013         if (!hid->urbctrl)
2014                 goto fail;
2015
2016         usb_fill_control_urb(hid->urbctrl, dev, 0, (void *) hid->cr,
2017                              hid->ctrlbuf, 1, hid_ctrl, hid);
2018         hid->urbctrl->setup_dma = hid->cr_dma;
2019         hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;
2020         hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
2021
2022         return hid;
2023
2024 fail:
2025
2026         if (hid->urbin)
2027                 usb_free_urb(hid->urbin);
2028         if (hid->urbout)
2029                 usb_free_urb(hid->urbout);
2030         if (hid->urbctrl)
2031                 usb_free_urb(hid->urbctrl);
2032         hid_free_buffers(dev, hid);
2033         hid_free_device(hid);
2034
2035         return NULL;
2036 }
2037
2038 static void hid_disconnect(struct usb_interface *intf)
2039 {
2040         struct hid_device *hid = usb_get_intfdata (intf);
2041
2042         if (!hid)
2043                 return;
2044
2045         spin_lock_irq(&hid->inlock);    /* Sync with error handler */
2046         usb_set_intfdata(intf, NULL);
2047         spin_unlock_irq(&hid->inlock);
2048         usb_kill_urb(hid->urbin);
2049         usb_kill_urb(hid->urbout);
2050         usb_kill_urb(hid->urbctrl);
2051
2052         del_timer_sync(&hid->io_retry);
2053         flush_scheduled_work();
2054
2055         if (hid->claimed & HID_CLAIMED_INPUT)
2056                 hidinput_disconnect(hid);
2057         if (hid->claimed & HID_CLAIMED_HIDDEV)
2058                 hiddev_disconnect(hid);
2059
2060         usb_free_urb(hid->urbin);
2061         usb_free_urb(hid->urbctrl);
2062         if (hid->urbout)
2063                 usb_free_urb(hid->urbout);
2064
2065         hid_free_buffers(hid->dev, hid);
2066         hid_free_device(hid);
2067 }
2068
2069 static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
2070 {
2071         struct hid_device *hid;
2072         char path[64];
2073         int i;
2074         char *c;
2075
2076         dbg("HID probe called for ifnum %d",
2077                         intf->altsetting->desc.bInterfaceNumber);
2078
2079         if (!(hid = usb_hid_configure(intf)))
2080                 return -ENODEV;
2081
2082         hid_init_reports(hid);
2083         hid_dump_device(hid);
2084
2085         if (!hidinput_connect(hid))
2086                 hid->claimed |= HID_CLAIMED_INPUT;
2087         if (!hiddev_connect(hid))
2088                 hid->claimed |= HID_CLAIMED_HIDDEV;
2089
2090         usb_set_intfdata(intf, hid);
2091
2092         if (!hid->claimed) {
2093                 printk ("HID device not claimed by input or hiddev\n");
2094                 hid_disconnect(intf);
2095                 return -ENODEV;
2096         }
2097
2098         printk(KERN_INFO);
2099
2100         if (hid->claimed & HID_CLAIMED_INPUT)
2101                 printk("input");
2102         if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV))
2103                 printk(",");
2104         if (hid->claimed & HID_CLAIMED_HIDDEV)
2105                 printk("hiddev%d", hid->minor);
2106
2107         c = "Device";
2108         for (i = 0; i < hid->maxcollection; i++) {
2109                 if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
2110                     (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
2111                     (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {
2112                         c = hid_types[hid->collection[i].usage & 0xffff];
2113                         break;
2114                 }
2115         }
2116
2117         usb_make_path(interface_to_usbdev(intf), path, 63);
2118
2119         printk(": USB HID v%x.%02x %s [%s] on %s\n",
2120                 hid->version >> 8, hid->version & 0xff, c, hid->name, path);
2121
2122         return 0;
2123 }
2124
2125 static int hid_suspend(struct usb_interface *intf, pm_message_t message)
2126 {
2127         struct hid_device *hid = usb_get_intfdata (intf);
2128
2129         spin_lock_irq(&hid->inlock);    /* Sync with error handler */
2130         set_bit(HID_SUSPENDED, &hid->iofl);
2131         spin_unlock_irq(&hid->inlock);
2132         del_timer(&hid->io_retry);
2133         usb_kill_urb(hid->urbin);
2134         dev_dbg(&intf->dev, "suspend\n");
2135         return 0;
2136 }
2137
2138 static int hid_resume(struct usb_interface *intf)
2139 {
2140         struct hid_device *hid = usb_get_intfdata (intf);
2141         int status;
2142
2143         clear_bit(HID_SUSPENDED, &hid->iofl);
2144         hid->retry_delay = 0;
2145         status = hid_start_in(hid);
2146         dev_dbg(&intf->dev, "resume status %d\n", status);
2147         return status;
2148 }
2149
2150 /* Treat USB reset pretty much the same as suspend/resume */
2151 static void hid_pre_reset(struct usb_interface *intf)
2152 {
2153         /* FIXME: What if the interface is already suspended? */
2154         hid_suspend(intf, PMSG_ON);
2155 }
2156
2157 static void hid_post_reset(struct usb_interface *intf)
2158 {
2159         struct usb_device *dev = interface_to_usbdev (intf);
2160
2161         hid_set_idle(dev, intf->cur_altsetting->desc.bInterfaceNumber, 0, 0);
2162         /* FIXME: Any more reinitialization needed? */
2163
2164         hid_resume(intf);
2165 }
2166
2167 static struct usb_device_id hid_usb_ids [] = {
2168         { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
2169                 .bInterfaceClass = USB_INTERFACE_CLASS_HID },
2170         { }                                             /* Terminating entry */
2171 };
2172
2173 MODULE_DEVICE_TABLE (usb, hid_usb_ids);
2174
2175 static struct usb_driver hid_driver = {
2176         .name =         "usbhid",
2177         .probe =        hid_probe,
2178         .disconnect =   hid_disconnect,
2179         .suspend =      hid_suspend,
2180         .resume =       hid_resume,
2181         .pre_reset =    hid_pre_reset,
2182         .post_reset =   hid_post_reset,
2183         .id_table =     hid_usb_ids,
2184 };
2185
2186 static int __init hid_init(void)
2187 {
2188         int retval;
2189         retval = hiddev_init();
2190         if (retval)
2191                 goto hiddev_init_fail;
2192         retval = usb_register(&hid_driver);
2193         if (retval)
2194                 goto usb_register_fail;
2195         info(DRIVER_VERSION ":" DRIVER_DESC);
2196
2197         return 0;
2198 usb_register_fail:
2199         hiddev_exit();
2200 hiddev_init_fail:
2201         return retval;
2202 }
2203
2204 static void __exit hid_exit(void)
2205 {
2206         usb_deregister(&hid_driver);
2207         hiddev_exit();
2208 }
2209
2210 module_init(hid_init);
2211 module_exit(hid_exit);
2212
2213 MODULE_AUTHOR(DRIVER_AUTHOR);
2214 MODULE_DESCRIPTION(DRIVER_DESC);
2215 MODULE_LICENSE(DRIVER_LICENSE);