drivers/hid/hid-core.c

   1 /*
   2  *  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  *  Copyright (c) 2006-2010 Jiri Kosina
   8  */
   9
  10 /*
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License as published by the Free
  13  * Software Foundation; either version 2 of the License, or (at your option)
  14  * any later version.
  15  */
  16
  17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  18
  19 #include <linux/module.h>
  20 #include <linux/slab.h>
  21 #include <linux/init.h>
  22 #include <linux/kernel.h>
  23 #include <linux/list.h>
  24 #include <linux/mm.h>
  25 #include <linux/spinlock.h>
  26 #include <asm/unaligned.h>
  27 #include <asm/byteorder.h>
  28 #include <linux/input.h>
  29 #include <linux/wait.h>
  30 #include <linux/vmalloc.h>
  31 #include <linux/sched.h>
  32
  33 #include <linux/hid.h>
  34 #include <linux/hiddev.h>
  35 #include <linux/hid-debug.h>
  36 #include <linux/hidraw.h>
  37
  38 #include "hid-ids.h"
  39
  40 /*
  41  * Version Information
  42  */
  43
  44 #define DRIVER_DESC "HID core driver"
  45 #define DRIVER_LICENSE "GPL"
  46
  47 int hid_debug = 0;
  48 module_param_named(debug, hid_debug, int, 0600);
  49 MODULE_PARM_DESC(debug, "toggle HID debugging messages");
  50 EXPORT_SYMBOL_GPL(hid_debug);
  51
  52 /*
  53  * Register a new report for a device.
  54  */
  55
  56 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
  57 {
  58         struct hid_report_enum *report_enum = device->report_enum + type;
  59         struct hid_report *report;
  60
  61         if (report_enum->report_id_hash[id])
  62                 return report_enum->report_id_hash[id];
  63
  64         report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
  65         if (!report)
  66                 return NULL;
  67
  68         if (id != 0)
  69                 report_enum->numbered = 1;
  70
  71         report->id = id;
  72         report->type = type;
  73         report->size = 0;
  74         report->device = device;
  75         report_enum->report_id_hash[id] = report;
  76
  77         list_add_tail(&report->list, &report_enum->report_list);
  78
  79         return report;
  80 }
  81 EXPORT_SYMBOL_GPL(hid_register_report);
  82
  83 /*
  84  * Register a new field for this report.
  85  */
  86
  87 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
  88 {
  89         struct hid_field *field;
  90
  91         if (report->maxfield == HID_MAX_FIELDS) {
  92                 dbg_hid("too many fields in report\n");
  93                 return NULL;
  94         }
  95
  96         field = kzalloc((sizeof(struct hid_field) +
  97                          usages * sizeof(struct hid_usage) +
  98                          values * sizeof(unsigned)), GFP_KERNEL);
  99         if (!field)
 100                 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 = (s32 *)(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_hid("collection stack overflow\n");
 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_hid("failed to reallocate collection array\n");
 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_hid("collection stack underflow\n");
 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         struct hid_collection *collection = parser->device->collection;
 182         int n;
 183
 184         for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
 185                 unsigned index = parser->collection_stack[n];
 186                 if (collection[index].type == type)
 187                         return collection[index].usage;
 188         }
 189         return 0; /* we know nothing about this usage type */
 190 }
 191
 192 /*
 193  * Add a usage to the temporary parser table.
 194  */
 195
 196 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 197 {
 198         if (parser->local.usage_index >= HID_MAX_USAGES) {
 199                 dbg_hid("usage index exceeded\n");
 200                 return -1;
 201         }
 202         parser->local.usage[parser->local.usage_index] = usage;
 203         parser->local.collection_index[parser->local.usage_index] =
 204                 parser->collection_stack_ptr ?
 205                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
 206         parser->local.usage_index++;
 207         return 0;
 208 }
 209
 210 /*
 211  * Register a new field for this report.
 212  */
 213
 214 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
 215 {
 216         struct hid_report *report;
 217         struct hid_field *field;
 218         int usages;
 219         unsigned offset;
 220         int i;
 221
 222         report = hid_register_report(parser->device, report_type, parser->global.report_id);
 223         if (!report) {
 224                 dbg_hid("hid_register_report failed\n");
 225                 return -1;
 226         }
 227
 228         if (parser->global.logical_maximum < parser->global.logical_minimum) {
 229                 dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum);
 230                 return -1;
 231         }
 232
 233         offset = report->size;
 234         report->size += parser->global.report_size * parser->global.report_count;
 235
 236         if (!parser->local.usage_index) /* Ignore padding fields */
 237                 return 0;
 238
 239         usages = max_t(int, parser->local.usage_index, parser->global.report_count);
 240
 241         field = hid_register_field(report, usages, parser->global.report_count);
 242         if (!field)
 243                 return 0;
 244
 245         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
 246         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
 247         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
 248
 249         for (i = 0; i < usages; i++) {
 250                 int j = i;
 251                 /* Duplicate the last usage we parsed if we have excess values */
 252                 if (i >= parser->local.usage_index)
 253                         j = parser->local.usage_index - 1;
 254                 field->usage[i].hid = parser->local.usage[j];
 255                 field->usage[i].collection_index =
 256                         parser->local.collection_index[j];
 257         }
 258
 259         field->maxusage = usages;
 260         field->flags = flags;
 261         field->report_offset = offset;
 262         field->report_type = report_type;
 263         field->report_size = parser->global.report_size;
 264         field->report_count = parser->global.report_count;
 265         field->logical_minimum = parser->global.logical_minimum;
 266         field->logical_maximum = parser->global.logical_maximum;
 267         field->physical_minimum = parser->global.physical_minimum;
 268         field->physical_maximum = parser->global.physical_maximum;
 269         field->unit_exponent = parser->global.unit_exponent;
 270         field->unit = parser->global.unit;
 271
 272         return 0;
 273 }
 274
 275 /*
 276  * Read data value from item.
 277  */
 278
 279 static u32 item_udata(struct hid_item *item)
 280 {
 281         switch (item->size) {
 282         case 1: return item->data.u8;
 283         case 2: return item->data.u16;
 284         case 4: return item->data.u32;
 285         }
 286         return 0;
 287 }
 288
 289 static s32 item_sdata(struct hid_item *item)
 290 {
 291         switch (item->size) {
 292         case 1: return item->data.s8;
 293         case 2: return item->data.s16;
 294         case 4: return item->data.s32;
 295         }
 296         return 0;
 297 }
 298
 299 /*
 300  * Process a global item.
 301  */
 302
 303 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 304 {
 305         switch (item->tag) {
 306         case HID_GLOBAL_ITEM_TAG_PUSH:
 307
 308                 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
 309                         dbg_hid("global environment stack overflow\n");
 310                         return -1;
 311                 }
 312
 313                 memcpy(parser->global_stack + parser->global_stack_ptr++,
 314                         &parser->global, sizeof(struct hid_global));
 315                 return 0;
 316
 317         case HID_GLOBAL_ITEM_TAG_POP:
 318
 319                 if (!parser->global_stack_ptr) {
 320                         dbg_hid("global environment stack underflow\n");
 321                         return -1;
 322                 }
 323
 324                 memcpy(&parser->global, parser->global_stack +
 325                         --parser->global_stack_ptr, sizeof(struct hid_global));
 326                 return 0;
 327
 328         case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
 329                 parser->global.usage_page = item_udata(item);
 330                 return 0;
 331
 332         case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
 333                 parser->global.logical_minimum = item_sdata(item);
 334                 return 0;
 335
 336         case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
 337                 if (parser->global.logical_minimum < 0)
 338                         parser->global.logical_maximum = item_sdata(item);
 339                 else
 340                         parser->global.logical_maximum = item_udata(item);
 341                 return 0;
 342
 343         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
 344                 parser->global.physical_minimum = item_sdata(item);
 345                 return 0;
 346
 347         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
 348                 if (parser->global.physical_minimum < 0)
 349                         parser->global.physical_maximum = item_sdata(item);
 350                 else
 351                         parser->global.physical_maximum = item_udata(item);
 352                 return 0;
 353
 354         case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
 355                 parser->global.unit_exponent = item_sdata(item);
 356                 return 0;
 357
 358         case HID_GLOBAL_ITEM_TAG_UNIT:
 359                 parser->global.unit = item_udata(item);
 360                 return 0;
 361
 362         case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 363                 parser->global.report_size = item_udata(item);
 364                 if (parser->global.report_size > 32) {
 365                         dbg_hid("invalid report_size %d\n",
 366                                         parser->global.report_size);
 367                         return -1;
 368                 }
 369                 return 0;
 370
 371         case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 372                 parser->global.report_count = item_udata(item);
 373                 if (parser->global.report_count > HID_MAX_USAGES) {
 374                         dbg_hid("invalid report_count %d\n",
 375                                         parser->global.report_count);
 376                         return -1;
 377                 }
 378                 return 0;
 379
 380         case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 381                 parser->global.report_id = item_udata(item);
 382                 if (parser->global.report_id == 0) {
 383                         dbg_hid("report_id 0 is invalid\n");
 384                         return -1;
 385                 }
 386                 return 0;
 387
 388         default:
 389                 dbg_hid("unknown global tag 0x%x\n", item->tag);
 390                 return -1;
 391         }
 392 }
 393
 394 /*
 395  * Process a local item.
 396  */
 397
 398 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 399 {
 400         __u32 data;
 401         unsigned n;
 402
 403         data = item_udata(item);
 404
 405         switch (item->tag) {
 406         case HID_LOCAL_ITEM_TAG_DELIMITER:
 407
 408                 if (data) {
 409                         /*
 410                          * We treat items before the first delimiter
 411                          * as global to all usage sets (branch 0).
 412                          * In the moment we process only these global
 413                          * items and the first delimiter set.
 414                          */
 415                         if (parser->local.delimiter_depth != 0) {
 416                                 dbg_hid("nested delimiters\n");
 417                                 return -1;
 418                         }
 419                         parser->local.delimiter_depth++;
 420                         parser->local.delimiter_branch++;
 421                 } else {
 422                         if (parser->local.delimiter_depth < 1) {
 423                                 dbg_hid("bogus close delimiter\n");
 424                                 return -1;
 425                         }
 426                         parser->local.delimiter_depth--;
 427                 }
 428                 return 1;
 429
 430         case HID_LOCAL_ITEM_TAG_USAGE:
 431
 432                 if (parser->local.delimiter_branch > 1) {
 433                         dbg_hid("alternative usage ignored\n");
 434                         return 0;
 435                 }
 436
 437                 if (item->size <= 2)
 438                         data = (parser->global.usage_page << 16) + data;
 439
 440                 return hid_add_usage(parser, data);
 441
 442         case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 443
 444                 if (parser->local.delimiter_branch > 1) {
 445                         dbg_hid("alternative usage ignored\n");
 446                         return 0;
 447                 }
 448
 449                 if (item->size <= 2)
 450                         data = (parser->global.usage_page << 16) + data;
 451
 452                 parser->local.usage_minimum = data;
 453                 return 0;
 454
 455         case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 456
 457                 if (parser->local.delimiter_branch > 1) {
 458                         dbg_hid("alternative usage ignored\n");
 459                         return 0;
 460                 }
 461
 462                 if (item->size <= 2)
 463                         data = (parser->global.usage_page << 16) + data;
 464
 465                 for (n = parser->local.usage_minimum; n <= data; n++)
 466                         if (hid_add_usage(parser, n)) {
 467                                 dbg_hid("hid_add_usage failed\n");
 468                                 return -1;
 469                         }
 470                 return 0;
 471
 472         default:
 473
 474                 dbg_hid("unknown local item tag 0x%x\n", item->tag);
 475                 return 0;
 476         }
 477         return 0;
 478 }
 479
 480 /*
 481  * Process a main item.
 482  */
 483
 484 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 485 {
 486         __u32 data;
 487         int ret;
 488
 489         data = item_udata(item);
 490
 491         switch (item->tag) {
 492         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 493                 ret = open_collection(parser, data & 0xff);
 494                 break;
 495         case HID_MAIN_ITEM_TAG_END_COLLECTION:
 496                 ret = close_collection(parser);
 497                 break;
 498         case HID_MAIN_ITEM_TAG_INPUT:
 499                 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
 500                 break;
 501         case HID_MAIN_ITEM_TAG_OUTPUT:
 502                 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
 503                 break;
 504         case HID_MAIN_ITEM_TAG_FEATURE:
 505                 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 506                 break;
 507         default:
 508                 dbg_hid("unknown main item tag 0x%x\n", item->tag);
 509                 ret = 0;
 510         }
 511
 512         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
 513
 514         return ret;
 515 }
 516
 517 /*
 518  * Process a reserved item.
 519  */
 520
 521 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
 522 {
 523         dbg_hid("reserved item type, tag 0x%x\n", item->tag);
 524         return 0;
 525 }
 526
 527 /*
 528  * Free a report and all registered fields. The field->usage and
 529  * field->value table's are allocated behind the field, so we need
 530  * only to free(field) itself.
 531  */
 532
 533 static void hid_free_report(struct hid_report *report)
 534 {
 535         unsigned n;
 536
 537         for (n = 0; n < report->maxfield; n++)
 538                 kfree(report->field[n]);
 539         kfree(report);
 540 }
 541
 542 /*
 543  * Free a device structure, all reports, and all fields.
 544  */
 545
 546 static void hid_device_release(struct device *dev)
 547 {
 548         struct hid_device *device = container_of(dev, struct hid_device, dev);
 549         unsigned i, j;
 550
 551         for (i = 0; i < HID_REPORT_TYPES; i++) {
 552                 struct hid_report_enum *report_enum = device->report_enum + i;
 553
 554                 for (j = 0; j < 256; j++) {
 555                         struct hid_report *report = report_enum->report_id_hash[j];
 556                         if (report)
 557                                 hid_free_report(report);
 558                 }
 559         }
 560
 561         kfree(device->rdesc);
 562         kfree(device->collection);
 563         kfree(device);
 564 }
 565
 566 /*
 567  * Fetch a report description item from the data stream. We support long
 568  * items, though they are not used yet.
 569  */
 570
 571 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
 572 {
 573         u8 b;
 574
 575         if ((end - start) <= 0)
 576                 return NULL;
 577
 578         b = *start++;
 579
 580         item->type = (b >> 2) & 3;
 581         item->tag  = (b >> 4) & 15;
 582
 583         if (item->tag == HID_ITEM_TAG_LONG) {
 584
 585                 item->format = HID_ITEM_FORMAT_LONG;
 586
 587                 if ((end - start) < 2)
 588                         return NULL;
 589
 590                 item->size = *start++;
 591                 item->tag  = *start++;
 592
 593                 if ((end - start) < item->size)
 594                         return NULL;
 595
 596                 item->data.longdata = start;
 597                 start += item->size;
 598                 return start;
 599         }
 600
 601         item->format = HID_ITEM_FORMAT_SHORT;
 602         item->size = b & 3;
 603
 604         switch (item->size) {
 605         case 0:
 606                 return start;
 607
 608         case 1:
 609                 if ((end - start) < 1)
 610                         return NULL;
 611                 item->data.u8 = *start++;
 612                 return start;
 613
 614         case 2:
 615                 if ((end - start) < 2)
 616                         return NULL;
 617                 item->data.u16 = get_unaligned_le16(start);
 618                 start = (__u8 *)((__le16 *)start + 1);
 619                 return start;
 620
 621         case 3:
 622                 item->size++;
 623                 if ((end - start) < 4)
 624                         return NULL;
 625                 item->data.u32 = get_unaligned_le32(start);
 626                 start = (__u8 *)((__le32 *)start + 1);
 627                 return start;
 628         }
 629
 630         return NULL;
 631 }
 632
 633 /**
 634  * hid_parse_report - parse device report
 635  *
 636  * @device: hid device
 637  * @start: report start
 638  * @size: report size
 639  *
 640  * Parse a report description into a hid_device structure. Reports are
 641  * enumerated, fields are attached to these reports.
 642  * 0 returned on success, otherwise nonzero error value.
 643  */
 644 int hid_parse_report(struct hid_device *device, __u8 *start,
 645                 unsigned size)
 646 {
 647         struct hid_parser *parser;
 648         struct hid_item item;
 649         __u8 *end;
 650         int ret;
 651         static int (*dispatch_type[])(struct hid_parser *parser,
 652                                       struct hid_item *item) = {
 653                 hid_parser_main,
 654                 hid_parser_global,
 655                 hid_parser_local,
 656                 hid_parser_reserved
 657         };
 658
 659         if (device->driver->report_fixup)
 660                 start = device->driver->report_fixup(device, start, &size);
 661
 662         device->rdesc = kmemdup(start, size, GFP_KERNEL);
 663         if (device->rdesc == NULL)
 664                 return -ENOMEM;
 665         device->rsize = size;
 666
 667         parser = vzalloc(sizeof(struct hid_parser));
 668         if (!parser) {
 669                 ret = -ENOMEM;
 670                 goto err;
 671         }
 672
 673         parser->device = device;
 674
 675         end = start + size;
 676         ret = -EINVAL;
 677         while ((start = fetch_item(start, end, &item)) != NULL) {
 678
 679                 if (item.format != HID_ITEM_FORMAT_SHORT) {
 680                         dbg_hid("unexpected long global item\n");
 681                         goto err;
 682                 }
 683
 684                 if (dispatch_type[item.type](parser, &item)) {
 685                         dbg_hid("item %u %u %u %u parsing failed\n",
 686                                 item.format, (unsigned)item.size,
 687                                 (unsigned)item.type, (unsigned)item.tag);
 688                         goto err;
 689                 }
 690
 691                 if (start == end) {
 692                         if (parser->collection_stack_ptr) {
 693                                 dbg_hid("unbalanced collection at end of report description\n");
 694                                 goto err;
 695                         }
 696                         if (parser->local.delimiter_depth) {
 697                                 dbg_hid("unbalanced delimiter at end of report description\n");
 698                                 goto err;
 699                         }
 700                         vfree(parser);
 701                         return 0;
 702                 }
 703         }
 704
 705         dbg_hid("item fetching failed at offset %d\n", (int)(end - start));
 706 err:
 707         vfree(parser);
 708         return ret;
 709 }
 710 EXPORT_SYMBOL_GPL(hid_parse_report);
 711
 712 /*
 713  * Convert a signed n-bit integer to signed 32-bit integer. Common
 714  * cases are done through the compiler, the screwed things has to be
 715  * done by hand.
 716  */
 717
 718 static s32 snto32(__u32 value, unsigned n)
 719 {
 720         switch (n) {
 721         case 8:  return ((__s8)value);
 722         case 16: return ((__s16)value);
 723         case 32: return ((__s32)value);
 724         }
 725         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
 726 }
 727
 728 /*
 729  * Convert a signed 32-bit integer to a signed n-bit integer.
 730  */
 731
 732 static u32 s32ton(__s32 value, unsigned n)
 733 {
 734         s32 a = value >> (n - 1);
 735         if (a && a != -1)
 736                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
 737         return value & ((1 << n) - 1);
 738 }
 739
 740 /*
 741  * Extract/implement a data field from/to a little endian report (bit array).
 742  *
 743  * Code sort-of follows HID spec:
 744  *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
 745  *
 746  * While the USB HID spec allows unlimited length bit fields in "report
 747  * descriptors", most devices never use more than 16 bits.
 748  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
 749  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
 750  */
 751
 752 static __u32 extract(const struct hid_device *hid, __u8 *report,
 753                      unsigned offset, unsigned n)
 754 {
 755         u64 x;
 756
 757         if (n > 32)
 758                 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
 759                          n, current->comm);
 760
 761         report += offset >> 3;  /* adjust byte index */
 762         offset &= 7;            /* now only need bit offset into one byte */
 763         x = get_unaligned_le64(report);
 764         x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
 765         return (u32) x;
 766 }
 767
 768 /*
 769  * "implement" : set bits in a little endian bit stream.
 770  * Same concepts as "extract" (see comments above).
 771  * The data mangled in the bit stream remains in little endian
 772  * order the whole time. It make more sense to talk about
 773  * endianness of register values by considering a register
 774  * a "cached" copy of the little endiad bit stream.
 775  */
 776 static void implement(const struct hid_device *hid, __u8 *report,
 777                       unsigned offset, unsigned n, __u32 value)
 778 {
 779         u64 x;
 780         u64 m = (1ULL << n) - 1;
 781
 782         if (n > 32)
 783                 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
 784                          __func__, n, current->comm);
 785
 786         if (value > m)
 787                 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
 788                          __func__, value, current->comm);
 789         WARN_ON(value > m);
 790         value &= m;
 791
 792         report += offset >> 3;
 793         offset &= 7;
 794
 795         x = get_unaligned_le64(report);
 796         x &= ~(m << offset);
 797         x |= ((u64)value) << offset;
 798         put_unaligned_le64(x, report);
 799 }
 800
 801 /*
 802  * Search an array for a value.
 803  */
 804
 805 static int search(__s32 *array, __s32 value, unsigned n)
 806 {
 807         while (n--) {
 808                 if (*array++ == value)
 809                         return 0;
 810         }
 811         return -1;
 812 }
 813
 814 /**
 815  * hid_match_report - check if driver's raw_event should be called
 816  *
 817  * @hid: hid device
 818  * @report_type: type to match against
 819  *
 820  * compare hid->driver->report_table->report_type to report->type
 821  */
 822 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
 823 {
 824         const struct hid_report_id *id = hid->driver->report_table;
 825
 826         if (!id) /* NULL means all */
 827                 return 1;
 828
 829         for (; id->report_type != HID_TERMINATOR; id++)
 830                 if (id->report_type == HID_ANY_ID ||
 831                                 id->report_type == report->type)
 832                         return 1;
 833         return 0;
 834 }
 835
 836 /**
 837  * hid_match_usage - check if driver's event should be called
 838  *
 839  * @hid: hid device
 840  * @usage: usage to match against
 841  *
 842  * compare hid->driver->usage_table->usage_{type,code} to
 843  * usage->usage_{type,code}
 844  */
 845 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
 846 {
 847         const struct hid_usage_id *id = hid->driver->usage_table;
 848
 849         if (!id) /* NULL means all */
 850                 return 1;
 851
 852         for (; id->usage_type != HID_ANY_ID - 1; id++)
 853                 if ((id->usage_hid == HID_ANY_ID ||
 854                                 id->usage_hid == usage->hid) &&
 855                                 (id->usage_type == HID_ANY_ID ||
 856                                 id->usage_type == usage->type) &&
 857                                 (id->usage_code == HID_ANY_ID ||
 858                                  id->usage_code == usage->code))
 859                         return 1;
 860         return 0;
 861 }
 862
 863 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
 864                 struct hid_usage *usage, __s32 value, int interrupt)
 865 {
 866         struct hid_driver *hdrv = hid->driver;
 867         int ret;
 868
 869         hid_dump_input(hid, usage, value);
 870
 871         if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
 872                 ret = hdrv->event(hid, field, usage, value);
 873                 if (ret != 0) {
 874                         if (ret < 0)
 875                                 dbg_hid("%s's event failed with %d\n",
 876                                                 hdrv->name, ret);
 877                         return;
 878                 }
 879         }
 880
 881         if (hid->claimed & HID_CLAIMED_INPUT)
 882                 hidinput_hid_event(hid, field, usage, value);
 883         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
 884                 hid->hiddev_hid_event(hid, field, usage, value);
 885 }
 886
 887 /*
 888  * Analyse a received field, and fetch the data from it. The field
 889  * content is stored for next report processing (we do differential
 890  * reporting to the layer).
 891  */
 892
 893 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
 894                             __u8 *data, int interrupt)
 895 {
 896         unsigned n;
 897         unsigned count = field->report_count;
 898         unsigned offset = field->report_offset;
 899         unsigned size = field->report_size;
 900         __s32 min = field->logical_minimum;
 901         __s32 max = field->logical_maximum;
 902         __s32 *value;
 903
 904         value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
 905         if (!value)
 906                 return;
 907
 908         for (n = 0; n < count; n++) {
 909
 910                 value[n] = min < 0 ?
 911                         snto32(extract(hid, data, offset + n * size, size),
 912                                size) :
 913                         extract(hid, data, offset + n * size, size);
 914
 915                 /* Ignore report if ErrorRollOver */
 916                 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
 917                     value[n] >= min && value[n] <= max &&
 918                     field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
 919                         goto exit;
 920         }
 921
 922         for (n = 0; n < count; n++) {
 923
 924                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
 925                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
 926                         continue;
 927                 }
 928
 929                 if (field->value[n] >= min && field->value[n] <= max
 930                         && field->usage[field->value[n] - min].hid
 931                         && search(value, field->value[n], count))
 932                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
 933
 934                 if (value[n] >= min && value[n] <= max
 935                         && field->usage[value[n] - min].hid
 936                         && search(field->value, value[n], count))
 937                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
 938         }
 939
 940         memcpy(field->value, value, count * sizeof(__s32));
 941 exit:
 942         kfree(value);
 943 }
 944
 945 /*
 946  * Output the field into the report.
 947  */
 948
 949 static void hid_output_field(const struct hid_device *hid,
 950                              struct hid_field *field, __u8 *data)
 951 {
 952         unsigned count = field->report_count;
 953         unsigned offset = field->report_offset;
 954         unsigned size = field->report_size;
 955         unsigned n;
 956
 957         for (n = 0; n < count; n++) {
 958                 if (field->logical_minimum < 0) /* signed values */
 959                         implement(hid, data, offset + n * size, size,
 960                                   s32ton(field->value[n], size));
 961                 else                            /* unsigned values */
 962                         implement(hid, data, offset + n * size, size,
 963                                   field->value[n]);
 964         }
 965 }
 966
 967 /*
 968  * Create a report.
 969  */
 970
 971 void hid_output_report(struct hid_report *report, __u8 *data)
 972 {
 973         unsigned n;
 974
 975         if (report->id > 0)
 976                 *data++ = report->id;
 977
 978         memset(data, 0, ((report->size - 1) >> 3) + 1);
 979         for (n = 0; n < report->maxfield; n++)
 980                 hid_output_field(report->device, report->field[n], data);
 981 }
 982 EXPORT_SYMBOL_GPL(hid_output_report);
 983
 984 /*
 985  * Set a field value. The report this field belongs to has to be
 986  * created and transferred to the device, to set this value in the
 987  * device.
 988  */
 989
 990 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
 991 {
 992         unsigned size = field->report_size;
 993
 994         hid_dump_input(field->report->device, field->usage + offset, value);
 995
 996         if (offset >= field->report_count) {
 997                 dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count);
 998                 return -1;
 999         }
1000         if (field->logical_minimum < 0) {
1001                 if (value != snto32(s32ton(value, size), size)) {
1002                         dbg_hid("value %d is out of range\n", value);
1003                         return -1;
1004                 }
1005         }
1006         field->value[offset] = value;
1007         return 0;
1008 }
1009 EXPORT_SYMBOL_GPL(hid_set_field);
1010
1011 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1012                 const u8 *data)
1013 {
1014         struct hid_report *report;
1015         unsigned int n = 0;     /* Normally report number is 0 */
1016
1017         /* Device uses numbered reports, data[0] is report number */
1018         if (report_enum->numbered)
1019                 n = *data;
1020
1021         report = report_enum->report_id_hash[n];
1022         if (report == NULL)
1023                 dbg_hid("undefined report_id %u received\n", n);
1024
1025         return report;
1026 }
1027
1028 void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1029                 int interrupt)
1030 {
1031         struct hid_report_enum *report_enum = hid->report_enum + type;
1032         struct hid_report *report;
1033         unsigned int a;
1034         int rsize, csize = size;
1035         u8 *cdata = data;
1036
1037         report = hid_get_report(report_enum, data);
1038         if (!report)
1039                 return;
1040
1041         if (report_enum->numbered) {
1042                 cdata++;
1043                 csize--;
1044         }
1045
1046         rsize = ((report->size - 1) >> 3) + 1;
1047
1048         if (rsize > HID_MAX_BUFFER_SIZE)
1049                 rsize = HID_MAX_BUFFER_SIZE;
1050
1051         if (csize < rsize) {
1052                 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1053                                 csize, rsize);
1054                 memset(cdata + csize, 0, rsize - csize);
1055         }
1056
1057         if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1058                 hid->hiddev_report_event(hid, report);
1059         if (hid->claimed & HID_CLAIMED_HIDRAW)
1060                 hidraw_report_event(hid, data, size);
1061
1062         for (a = 0; a < report->maxfield; a++)
1063                 hid_input_field(hid, report->field[a], cdata, interrupt);
1064
1065         if (hid->claimed & HID_CLAIMED_INPUT)
1066                 hidinput_report_event(hid, report);
1067 }
1068 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1069
1070 /**
1071  * hid_input_report - report data from lower layer (usb, bt...)
1072  *
1073  * @hid: hid device
1074  * @type: HID report type (HID_*_REPORT)
1075  * @data: report contents
1076  * @size: size of data parameter
1077  * @interrupt: distinguish between interrupt and control transfers
1078  *
1079  * This is data entry for lower layers.
1080  */
1081 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1082 {
1083         struct hid_report_enum *report_enum;
1084         struct hid_driver *hdrv;
1085         struct hid_report *report;
1086         char *buf;
1087         unsigned int i;
1088         int ret;
1089
1090         if (!hid || !hid->driver)
1091                 return -ENODEV;
1092         report_enum = hid->report_enum + type;
1093         hdrv = hid->driver;
1094
1095         if (!size) {
1096                 dbg_hid("empty report\n");
1097                 return -1;
1098         }
1099
1100         buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1101
1102         if (!buf)
1103                 goto nomem;
1104
1105         /* dump the report */
1106         snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1107                         "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1108         hid_debug_event(hid, buf);
1109
1110         for (i = 0; i < size; i++) {
1111                 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1112                                 " %02x", data[i]);
1113                 hid_debug_event(hid, buf);
1114         }
1115         hid_debug_event(hid, "\n");
1116         kfree(buf);
1117
1118 nomem:
1119         report = hid_get_report(report_enum, data);
1120
1121         if (!report)
1122                 return -1;
1123
1124         if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1125                 ret = hdrv->raw_event(hid, report, data, size);
1126                 if (ret != 0)
1127                         return ret < 0 ? ret : 0;
1128         }
1129
1130         hid_report_raw_event(hid, type, data, size, interrupt);
1131
1132         return 0;
1133 }
1134 EXPORT_SYMBOL_GPL(hid_input_report);
1135
1136 static bool hid_match_one_id(struct hid_device *hdev,
1137                 const struct hid_device_id *id)
1138 {
1139         return id->bus == hdev->bus &&
1140                 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1141                 (id->product == HID_ANY_ID || id->product == hdev->product);
1142 }
1143
1144 static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1145                 const struct hid_device_id *id)
1146 {
1147         for (; id->bus; id++)
1148                 if (hid_match_one_id(hdev, id))
1149                         return id;
1150
1151         return NULL;
1152 }
1153
1154 static const struct hid_device_id hid_hiddev_list[] = {
1155         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1156         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1157         { }
1158 };
1159
1160 static bool hid_hiddev(struct hid_device *hdev)
1161 {
1162         return !!hid_match_id(hdev, hid_hiddev_list);
1163 }
1164
1165
1166 static ssize_t
1167 read_report_descriptor(struct file *filp, struct kobject *kobj,
1168                 struct bin_attribute *attr,
1169                 char *buf, loff_t off, size_t count)
1170 {
1171         struct device *dev = container_of(kobj, struct device, kobj);
1172         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1173
1174         if (off >= hdev->rsize)
1175                 return 0;
1176
1177         if (off + count > hdev->rsize)
1178                 count = hdev->rsize - off;
1179
1180         memcpy(buf, hdev->rdesc + off, count);
1181
1182         return count;
1183 }
1184
1185 static struct bin_attribute dev_bin_attr_report_desc = {
1186         .attr = { .name = "report_descriptor", .mode = 0444 },
1187         .read = read_report_descriptor,
1188         .size = HID_MAX_DESCRIPTOR_SIZE,
1189 };
1190
1191 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1192 {
1193         static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1194                 "Joystick", "Gamepad", "Keyboard", "Keypad",
1195                 "Multi-Axis Controller"
1196         };
1197         const char *type, *bus;
1198         char buf[64];
1199         unsigned int i;
1200         int len;
1201         int ret;
1202
1203         if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1204                 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1205         if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1206                 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1207         if (hdev->bus != BUS_USB)
1208                 connect_mask &= ~HID_CONNECT_HIDDEV;
1209         if (hid_hiddev(hdev))
1210                 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1211
1212         if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1213                                 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1214                 hdev->claimed |= HID_CLAIMED_INPUT;
1215         if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1216                         !hdev->hiddev_connect(hdev,
1217                                 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1218                 hdev->claimed |= HID_CLAIMED_HIDDEV;
1219         if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1220                 hdev->claimed |= HID_CLAIMED_HIDRAW;
1221
1222         if (!hdev->claimed) {
1223                 hid_err(hdev, "claimed by neither input, hiddev nor hidraw\n");
1224                 return -ENODEV;
1225         }
1226
1227         if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1228                         (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1229                 hdev->ff_init(hdev);
1230
1231         len = 0;
1232         if (hdev->claimed & HID_CLAIMED_INPUT)
1233                 len += sprintf(buf + len, "input");
1234         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1235                 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1236                                 hdev->minor);
1237         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1238                 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1239                                 ((struct hidraw *)hdev->hidraw)->minor);
1240
1241         type = "Device";
1242         for (i = 0; i < hdev->maxcollection; i++) {
1243                 struct hid_collection *col = &hdev->collection[i];
1244                 if (col->type == HID_COLLECTION_APPLICATION &&
1245                    (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1246                    (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1247                         type = types[col->usage & 0xffff];
1248                         break;
1249                 }
1250         }
1251
1252         switch (hdev->bus) {
1253         case BUS_USB:
1254                 bus = "USB";
1255                 break;
1256         case BUS_BLUETOOTH:
1257                 bus = "BLUETOOTH";
1258                 break;
1259         default:
1260                 bus = "<UNKNOWN>";
1261         }
1262
1263         ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1264         if (ret)
1265                 hid_warn(hdev,
1266                          "can't create sysfs report descriptor attribute err: %d\n", ret);
1267
1268         hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1269                  buf, bus, hdev->version >> 8, hdev->version & 0xff,
1270                  type, hdev->name, hdev->phys);
1271
1272         return 0;
1273 }
1274 EXPORT_SYMBOL_GPL(hid_connect);
1275
1276 void hid_disconnect(struct hid_device *hdev)
1277 {
1278         device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1279         if (hdev->claimed & HID_CLAIMED_INPUT)
1280                 hidinput_disconnect(hdev);
1281         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1282                 hdev->hiddev_disconnect(hdev);
1283         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1284                 hidraw_disconnect(hdev);
1285 }
1286 EXPORT_SYMBOL_GPL(hid_disconnect);
1287
1288 /* a list of devices for which there is a specialized driver on HID bus */
1289 static const struct hid_device_id hid_have_special_driver[] = {
1290         { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
1291         { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
1292         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1293         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1294         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1295         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1296         { HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, USB_DEVICE_ID_ACTIONSTAR_1011) },
1297         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1298         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1299         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1300         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1301         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1302         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1303         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1304         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1305         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1306         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1307         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1308         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1309         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1310         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1311         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1312         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1313         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1314         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1315         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1316         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1317         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1318         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1319         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1320         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1321         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1322         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1323         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1324         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1325         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1326         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1327         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1328         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1329         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1330         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1331         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1332         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1333         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1334         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1335         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1336         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1337         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1338         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1339         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1340         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1341         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1342         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1343         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1344         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1345         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1346         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1347         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1348         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
1349         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1350         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1351         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1352         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1353         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1354         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1355         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1356         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1357         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1358         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1359         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1360         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1361         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1362         { HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1363         { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1364         { HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, USB_DEVICE_ID_CVTOUCH_SCREEN) },
1365         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1366         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1367         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1368         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1369         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1370         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1371         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1372         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
1373         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
1374         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
1375         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
1376         { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
1377         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1378         { HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2515) },
1379         { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1380         { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1381         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1382         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1383         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1384         { HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, USB_DEVICE_ID_GOODTOUCH_000f) },
1385         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1386         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1387         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1388         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1389         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1390         { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
1391         { HID_USB_DEVICE(USB_VENDOR_ID_ILITEK, USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1392         { HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1393         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1394         { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1395         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1396         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1397         { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1398         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1399         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1400         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1401         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1402         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1403         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1404         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1405         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1406         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1407         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1408         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1409         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1410         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1411         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1412         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1413         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1414         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1415         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1416         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1417         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1418         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1419         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1420         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1421         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1422         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1423         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1424         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1425         { HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, USB_DEVICE_ID_CRYSTALTOUCH) },
1426         { HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1427         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1428         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1429         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1430         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1431         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1432         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1433         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1434         { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1435         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1436         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1437         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1438         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1439         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1440         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1441         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1442         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1443         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1444         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1445         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1446         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1447         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1448         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1449         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1450         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1451         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1452         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1453         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1454         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1455         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1456         { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_PCI) },
1457         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1458         { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1459         { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
1460         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1461         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1462         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1463         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1464         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1465         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1466         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1467         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1468         { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1469         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1470         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1471         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1472         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1473         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1474         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1475         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
1476         { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1477         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1478         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1479         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1480         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1481         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1482         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1483         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1484         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1485         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1486         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1487         { HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1488         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1489         { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1490         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1491         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1492         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1493         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1494         { HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1495         { HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1496         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1497         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1498         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1499         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1500         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1501         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1502         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1503         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1504         { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1505
1506         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1507         { }
1508 };
1509
1510 struct hid_dynid {
1511         struct list_head list;
1512         struct hid_device_id id;
1513 };
1514
1515 /**
1516  * store_new_id - add a new HID device ID to this driver and re-probe devices
1517  * @driver: target device driver
1518  * @buf: buffer for scanning device ID data
1519  * @count: input size
1520  *
1521  * Adds a new dynamic hid device ID to this driver,
1522  * and causes the driver to probe for all devices again.
1523  */
1524 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1525                 size_t count)
1526 {
1527         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1528         struct hid_dynid *dynid;
1529         __u32 bus, vendor, product;
1530         unsigned long driver_data = 0;
1531         int ret;
1532
1533         ret = sscanf(buf, "%x %x %x %lx",
1534                         &bus, &vendor, &product, &driver_data);
1535         if (ret < 3)
1536                 return -EINVAL;
1537
1538         dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1539         if (!dynid)
1540                 return -ENOMEM;
1541
1542         dynid->id.bus = bus;
1543         dynid->id.vendor = vendor;
1544         dynid->id.product = product;
1545         dynid->id.driver_data = driver_data;
1546
1547         spin_lock(&hdrv->dyn_lock);
1548         list_add_tail(&dynid->list, &hdrv->dyn_list);
1549         spin_unlock(&hdrv->dyn_lock);
1550
1551         ret = 0;
1552         if (get_driver(&hdrv->driver)) {
1553                 ret = driver_attach(&hdrv->driver);
1554                 put_driver(&hdrv->driver);
1555         }
1556
1557         return ret ? : count;
1558 }
1559 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1560
1561 static void hid_free_dynids(struct hid_driver *hdrv)
1562 {
1563         struct hid_dynid *dynid, *n;
1564
1565         spin_lock(&hdrv->dyn_lock);
1566         list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1567                 list_del(&dynid->list);
1568                 kfree(dynid);
1569         }
1570         spin_unlock(&hdrv->dyn_lock);
1571 }
1572
1573 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1574                 struct hid_driver *hdrv)
1575 {
1576         struct hid_dynid *dynid;
1577
1578         spin_lock(&hdrv->dyn_lock);
1579         list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1580                 if (hid_match_one_id(hdev, &dynid->id)) {
1581                         spin_unlock(&hdrv->dyn_lock);
1582                         return &dynid->id;
1583                 }
1584         }
1585         spin_unlock(&hdrv->dyn_lock);
1586
1587         return hid_match_id(hdev, hdrv->id_table);
1588 }
1589
1590 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1591 {
1592         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1593         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1594
1595         if (!hid_match_device(hdev, hdrv))
1596                 return 0;
1597
1598         /* generic wants all that don't have specialized driver */
1599         if (!strncmp(hdrv->name, "generic-", 8))
1600                 return !hid_match_id(hdev, hid_have_special_driver);
1601
1602         return 1;
1603 }
1604
1605 static int hid_device_probe(struct device *dev)
1606 {
1607         struct hid_driver *hdrv = container_of(dev->driver,
1608                         struct hid_driver, driver);
1609         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1610         const struct hid_device_id *id;
1611         int ret = 0;
1612
1613         if (!hdev->driver) {
1614                 id = hid_match_device(hdev, hdrv);
1615                 if (id == NULL)
1616                         return -ENODEV;
1617
1618                 hdev->driver = hdrv;
1619                 if (hdrv->probe) {
1620                         ret = hdrv->probe(hdev, id);
1621                 } else { /* default probe */
1622                         ret = hid_parse(hdev);
1623                         if (!ret)
1624                                 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1625                 }
1626                 if (ret)
1627                         hdev->driver = NULL;
1628         }
1629         return ret;
1630 }
1631
1632 static int hid_device_remove(struct device *dev)
1633 {
1634         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1635         struct hid_driver *hdrv = hdev->driver;
1636
1637         if (hdrv) {
1638                 if (hdrv->remove)
1639                         hdrv->remove(hdev);
1640                 else /* default remove */
1641                         hid_hw_stop(hdev);
1642                 hdev->driver = NULL;
1643         }
1644
1645         return 0;
1646 }
1647
1648 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1649 {
1650         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1651
1652         if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1653                         hdev->bus, hdev->vendor, hdev->product))
1654                 return -ENOMEM;
1655
1656         if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1657                 return -ENOMEM;
1658
1659         if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1660                 return -ENOMEM;
1661
1662         if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1663                 return -ENOMEM;
1664
1665         if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1666                         hdev->bus, hdev->vendor, hdev->product))
1667                 return -ENOMEM;
1668
1669         return 0;
1670 }
1671
1672 static struct bus_type hid_bus_type = {
1673         .name           = "hid",
1674         .match          = hid_bus_match,
1675         .probe          = hid_device_probe,
1676         .remove         = hid_device_remove,
1677         .uevent         = hid_uevent,
1678 };
1679
1680 /* a list of devices that shouldn't be handled by HID core at all */
1681 static const struct hid_device_id hid_ignore_list[] = {
1682         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1683         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1684         { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1685         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1686         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1687         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1688         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1689         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1690         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1691         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1692         { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1693         { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1694         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1695         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1696         { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1697         { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1698         { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1699         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1700         { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1701         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1702         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1703         { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1704         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1705         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1706         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1707         { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1708         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1709         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1710         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1711         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
1712         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1713         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1714         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1715         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1716         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1717         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1718         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1719         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1720         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1721         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1722         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1723         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1724         { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1725         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1726         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1727         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1728         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1729         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1730         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1731         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1732         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1733         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1734         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1735         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1736         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1737         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1738         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1739         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1740         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1741         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1742         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1743         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1744         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1745         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1746         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1747         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1748         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1749         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1750         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1751         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1752         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1753         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1754         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1755         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1756         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1757         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1758         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1759         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1760         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1761         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1762         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1763         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1764         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1765         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1766         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1767         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1768         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1769         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1770         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1771         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1772         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1773         { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1774         { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_JESS_YUREX) },
1775         { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1776         { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1777         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1778         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1779         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1780         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
1781         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1782         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
1783         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1784         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
1785         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
1786         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
1787         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
1788         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
1789         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
1790         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1791         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1792         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1793         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
1794         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
1795         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
1796         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1797         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1798         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
1799         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1800         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1801         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1802         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1803         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1804         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
1805         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
1806         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
1807         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
1808         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
1809         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
1810         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
1811         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1812         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
1813         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1814         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1815         { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1816         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1817         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1818         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1819         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1820         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1821         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1822         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1823         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1824         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1825         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1826         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1827         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1828         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1829         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
1830         { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
1831         { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
1832         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1833         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1834         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1835         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1836         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1837         { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1838         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1839         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1840         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1841         { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1842         { }
1843 };
1844
1845 /**
1846  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1847  *
1848  * There are composite devices for which we want to ignore only a certain
1849  * interface. This is a list of devices for which only the mouse interface will
1850  * be ignored. This allows a dedicated driver to take care of the interface.
1851  */
1852 static const struct hid_device_id hid_mouse_ignore_list[] = {
1853         /* appletouch driver */
1854         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1855         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1856         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1857         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1858         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1859         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1860         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1861         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1862         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1863         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1864         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1865         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1866         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1867         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1868         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1869         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1870         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1871         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1872         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1873         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1874         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1875         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1876         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1877         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1878         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1879         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1880         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1881         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1882         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1883         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1884         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1885         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1886         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1887         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1888         { }
1889 };
1890
1891 static bool hid_ignore(struct hid_device *hdev)
1892 {
1893         switch (hdev->vendor) {
1894         case USB_VENDOR_ID_CODEMERCS:
1895                 /* ignore all Code Mercenaries IOWarrior devices */
1896                 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1897                                 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1898                         return true;
1899                 break;
1900         case USB_VENDOR_ID_LOGITECH:
1901                 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1902                                 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1903                         return true;
1904                 break;
1905         case USB_VENDOR_ID_SOUNDGRAPH:
1906                 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
1907                     hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
1908                         return true;
1909                 break;
1910         case USB_VENDOR_ID_HANWANG:
1911                 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
1912                     hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
1913                         return true;
1914                 break;
1915         }
1916
1917         if (hdev->type == HID_TYPE_USBMOUSE &&
1918                         hid_match_id(hdev, hid_mouse_ignore_list))
1919                 return true;
1920
1921         return !!hid_match_id(hdev, hid_ignore_list);
1922 }
1923
1924 int hid_add_device(struct hid_device *hdev)
1925 {
1926         static atomic_t id = ATOMIC_INIT(0);
1927         int ret;
1928
1929         if (WARN_ON(hdev->status & HID_STAT_ADDED))
1930                 return -EBUSY;
1931
1932         /* we need to kill them here, otherwise they will stay allocated to
1933          * wait for coming driver */
1934         if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
1935             && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
1936                 return -ENODEV;
1937
1938         /* XXX hack, any other cleaner solution after the driver core
1939          * is converted to allow more than 20 bytes as the device name? */
1940         dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
1941                      hdev->vendor, hdev->product, atomic_inc_return(&id));
1942
1943         hid_debug_register(hdev, dev_name(&hdev->dev));
1944         ret = device_add(&hdev->dev);
1945         if (!ret)
1946                 hdev->status |= HID_STAT_ADDED;
1947         else
1948                 hid_debug_unregister(hdev);
1949
1950         return ret;
1951 }
1952 EXPORT_SYMBOL_GPL(hid_add_device);
1953
1954 /**
1955  * hid_allocate_device - allocate new hid device descriptor
1956  *
1957  * Allocate and initialize hid device, so that hid_destroy_device might be
1958  * used to free it.
1959  *
1960  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
1961  * error value.
1962  */
1963 struct hid_device *hid_allocate_device(void)
1964 {
1965         struct hid_device *hdev;
1966         unsigned int i;
1967         int ret = -ENOMEM;
1968
1969         hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
1970         if (hdev == NULL)
1971                 return ERR_PTR(ret);
1972
1973         device_initialize(&hdev->dev);
1974         hdev->dev.release = hid_device_release;
1975         hdev->dev.bus = &hid_bus_type;
1976
1977         hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
1978                         sizeof(struct hid_collection), GFP_KERNEL);
1979         if (hdev->collection == NULL)
1980                 goto err;
1981         hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1982
1983         for (i = 0; i < HID_REPORT_TYPES; i++)
1984                 INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
1985
1986         init_waitqueue_head(&hdev->debug_wait);
1987         INIT_LIST_HEAD(&hdev->debug_list);
1988
1989         return hdev;
1990 err:
1991         put_device(&hdev->dev);
1992         return ERR_PTR(ret);
1993 }
1994 EXPORT_SYMBOL_GPL(hid_allocate_device);
1995
1996 static void hid_remove_device(struct hid_device *hdev)
1997 {
1998         if (hdev->status & HID_STAT_ADDED) {
1999                 device_del(&hdev->dev);
2000                 hid_debug_unregister(hdev);
2001                 hdev->status &= ~HID_STAT_ADDED;
2002         }
2003 }
2004
2005 /**
2006  * hid_destroy_device - free previously allocated device
2007  *
2008  * @hdev: hid device
2009  *
2010  * If you allocate hid_device through hid_allocate_device, you should ever
2011  * free by this function.
2012  */
2013 void hid_destroy_device(struct hid_device *hdev)
2014 {
2015         hid_remove_device(hdev);
2016         put_device(&hdev->dev);
2017 }
2018 EXPORT_SYMBOL_GPL(hid_destroy_device);
2019
2020 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2021                 const char *mod_name)
2022 {
2023         int ret;
2024
2025         hdrv->driver.name = hdrv->name;
2026         hdrv->driver.bus = &hid_bus_type;
2027         hdrv->driver.owner = owner;
2028         hdrv->driver.mod_name = mod_name;
2029
2030         INIT_LIST_HEAD(&hdrv->dyn_list);
2031         spin_lock_init(&hdrv->dyn_lock);
2032
2033         ret = driver_register(&hdrv->driver);
2034         if (ret)
2035                 return ret;
2036
2037         ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2038         if (ret)
2039                 driver_unregister(&hdrv->driver);
2040
2041         return ret;
2042 }
2043 EXPORT_SYMBOL_GPL(__hid_register_driver);
2044
2045 void hid_unregister_driver(struct hid_driver *hdrv)
2046 {
2047         driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2048         driver_unregister(&hdrv->driver);
2049         hid_free_dynids(hdrv);
2050 }
2051 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2052
2053 int hid_check_keys_pressed(struct hid_device *hid)
2054 {
2055         struct hid_input *hidinput;
2056         int i;
2057
2058         if (!(hid->claimed & HID_CLAIMED_INPUT))
2059                 return 0;
2060
2061         list_for_each_entry(hidinput, &hid->inputs, list) {
2062                 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2063                         if (hidinput->input->key[i])
2064                                 return 1;
2065         }
2066
2067         return 0;
2068 }
2069
2070 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2071
2072 static int __init hid_init(void)
2073 {
2074         int ret;
2075
2076         if (hid_debug)
2077                 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2078                         "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2079
2080         ret = bus_register(&hid_bus_type);
2081         if (ret) {
2082                 pr_err("can't register hid bus\n");
2083                 goto err;
2084         }
2085
2086         ret = hidraw_init();
2087         if (ret)
2088                 goto err_bus;
2089
2090         hid_debug_init();
2091
2092         return 0;
2093 err_bus:
2094         bus_unregister(&hid_bus_type);
2095 err:
2096         return ret;
2097 }
2098
2099 static void __exit hid_exit(void)
2100 {
2101         hid_debug_exit();
2102         hidraw_exit();
2103         bus_unregister(&hid_bus_type);
2104 }
2105
2106 module_init(hid_init);
2107 module_exit(hid_exit);
2108
2109 MODULE_AUTHOR("Andreas Gal");
2110 MODULE_AUTHOR("Vojtech Pavlik");
2111 MODULE_AUTHOR("Jiri Kosina");
2112 MODULE_LICENSE(DRIVER_LICENSE);
2113