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) 2006-2012 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 #include <linux/semaphore.h>
  33
  34 #include <linux/hid.h>
  35 #include <linux/hiddev.h>
  36 #include <linux/hid-debug.h>
  37 #include <linux/hidraw.h>
  38
  39 #include "hid-ids.h"
  40
  41 /*
  42  * Version Information
  43  */
  44
  45 #define DRIVER_DESC "HID core driver"
  46 #define DRIVER_LICENSE "GPL"
  47
  48 int hid_debug = 0;
  49 module_param_named(debug, hid_debug, int, 0600);
  50 MODULE_PARM_DESC(debug, "toggle HID debugging messages");
  51 EXPORT_SYMBOL_GPL(hid_debug);
  52
  53 static int hid_ignore_special_drivers = 0;
  54 module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
  55 MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");
  56
  57 /*
  58  * Register a new report for a device.
  59  */
  60
  61 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
  62 {
  63         struct hid_report_enum *report_enum = device->report_enum + type;
  64         struct hid_report *report;
  65
  66         if (report_enum->report_id_hash[id])
  67                 return report_enum->report_id_hash[id];
  68
  69         report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
  70         if (!report)
  71                 return NULL;
  72
  73         if (id != 0)
  74                 report_enum->numbered = 1;
  75
  76         report->id = id;
  77         report->type = type;
  78         report->size = 0;
  79         report->device = device;
  80         report_enum->report_id_hash[id] = report;
  81
  82         list_add_tail(&report->list, &report_enum->report_list);
  83
  84         return report;
  85 }
  86 EXPORT_SYMBOL_GPL(hid_register_report);
  87
  88 /*
  89  * Register a new field for this report.
  90  */
  91
  92 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
  93 {
  94         struct hid_field *field;
  95
  96         if (report->maxfield == HID_MAX_FIELDS) {
  97                 hid_err(report->device, "too many fields in report\n");
  98                 return NULL;
  99         }
 100
 101         field = kzalloc((sizeof(struct hid_field) +
 102                          usages * sizeof(struct hid_usage) +
 103                          values * sizeof(unsigned)), GFP_KERNEL);
 104         if (!field)
 105                 return NULL;
 106
 107         field->index = report->maxfield++;
 108         report->field[field->index] = field;
 109         field->usage = (struct hid_usage *)(field + 1);
 110         field->value = (s32 *)(field->usage + usages);
 111         field->report = report;
 112
 113         return field;
 114 }
 115
 116 /*
 117  * Open a collection. The type/usage is pushed on the stack.
 118  */
 119
 120 static int open_collection(struct hid_parser *parser, unsigned type)
 121 {
 122         struct hid_collection *collection;
 123         unsigned usage;
 124
 125         usage = parser->local.usage[0];
 126
 127         if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
 128                 hid_err(parser->device, "collection stack overflow\n");
 129                 return -EINVAL;
 130         }
 131
 132         if (parser->device->maxcollection == parser->device->collection_size) {
 133                 collection = kmalloc(sizeof(struct hid_collection) *
 134                                 parser->device->collection_size * 2, GFP_KERNEL);
 135                 if (collection == NULL) {
 136                         hid_err(parser->device, "failed to reallocate collection array\n");
 137                         return -ENOMEM;
 138                 }
 139                 memcpy(collection, parser->device->collection,
 140                         sizeof(struct hid_collection) *
 141                         parser->device->collection_size);
 142                 memset(collection + parser->device->collection_size, 0,
 143                         sizeof(struct hid_collection) *
 144                         parser->device->collection_size);
 145                 kfree(parser->device->collection);
 146                 parser->device->collection = collection;
 147                 parser->device->collection_size *= 2;
 148         }
 149
 150         parser->collection_stack[parser->collection_stack_ptr++] =
 151                 parser->device->maxcollection;
 152
 153         collection = parser->device->collection +
 154                 parser->device->maxcollection++;
 155         collection->type = type;
 156         collection->usage = usage;
 157         collection->level = parser->collection_stack_ptr - 1;
 158
 159         if (type == HID_COLLECTION_APPLICATION)
 160                 parser->device->maxapplication++;
 161
 162         return 0;
 163 }
 164
 165 /*
 166  * Close a collection.
 167  */
 168
 169 static int close_collection(struct hid_parser *parser)
 170 {
 171         if (!parser->collection_stack_ptr) {
 172                 hid_err(parser->device, "collection stack underflow\n");
 173                 return -EINVAL;
 174         }
 175         parser->collection_stack_ptr--;
 176         return 0;
 177 }
 178
 179 /*
 180  * Climb up the stack, search for the specified collection type
 181  * and return the usage.
 182  */
 183
 184 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 185 {
 186         struct hid_collection *collection = parser->device->collection;
 187         int n;
 188
 189         for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
 190                 unsigned index = parser->collection_stack[n];
 191                 if (collection[index].type == type)
 192                         return collection[index].usage;
 193         }
 194         return 0; /* we know nothing about this usage type */
 195 }
 196
 197 /*
 198  * Add a usage to the temporary parser table.
 199  */
 200
 201 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 202 {
 203         if (parser->local.usage_index >= HID_MAX_USAGES) {
 204                 hid_err(parser->device, "usage index exceeded\n");
 205                 return -1;
 206         }
 207         parser->local.usage[parser->local.usage_index] = usage;
 208         parser->local.collection_index[parser->local.usage_index] =
 209                 parser->collection_stack_ptr ?
 210                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
 211         parser->local.usage_index++;
 212         return 0;
 213 }
 214
 215 /*
 216  * Register a new field for this report.
 217  */
 218
 219 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
 220 {
 221         struct hid_report *report;
 222         struct hid_field *field;
 223         int usages;
 224         unsigned offset;
 225         int i;
 226
 227         report = hid_register_report(parser->device, report_type, parser->global.report_id);
 228         if (!report) {
 229                 hid_err(parser->device, "hid_register_report failed\n");
 230                 return -1;
 231         }
 232
 233         /* Handle both signed and unsigned cases properly */
 234         if ((parser->global.logical_minimum < 0 &&
 235                 parser->global.logical_maximum <
 236                 parser->global.logical_minimum) ||
 237                 (parser->global.logical_minimum >= 0 &&
 238                 (__u32)parser->global.logical_maximum <
 239                 (__u32)parser->global.logical_minimum)) {
 240                 dbg_hid("logical range invalid 0x%x 0x%x\n",
 241                         parser->global.logical_minimum,
 242                         parser->global.logical_maximum);
 243                 return -1;
 244         }
 245
 246         offset = report->size;
 247         report->size += parser->global.report_size * parser->global.report_count;
 248
 249         if (!parser->local.usage_index) /* Ignore padding fields */
 250                 return 0;
 251
 252         usages = max_t(int, parser->local.usage_index, parser->global.report_count);
 253
 254         field = hid_register_field(report, usages, parser->global.report_count);
 255         if (!field)
 256                 return 0;
 257
 258         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
 259         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
 260         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
 261
 262         for (i = 0; i < usages; i++) {
 263                 int j = i;
 264                 /* Duplicate the last usage we parsed if we have excess values */
 265                 if (i >= parser->local.usage_index)
 266                         j = parser->local.usage_index - 1;
 267                 field->usage[i].hid = parser->local.usage[j];
 268                 field->usage[i].collection_index =
 269                         parser->local.collection_index[j];
 270         }
 271
 272         field->maxusage = usages;
 273         field->flags = flags;
 274         field->report_offset = offset;
 275         field->report_type = report_type;
 276         field->report_size = parser->global.report_size;
 277         field->report_count = parser->global.report_count;
 278         field->logical_minimum = parser->global.logical_minimum;
 279         field->logical_maximum = parser->global.logical_maximum;
 280         field->physical_minimum = parser->global.physical_minimum;
 281         field->physical_maximum = parser->global.physical_maximum;
 282         field->unit_exponent = parser->global.unit_exponent;
 283         field->unit = parser->global.unit;
 284
 285         return 0;
 286 }
 287
 288 /*
 289  * Read data value from item.
 290  */
 291
 292 static u32 item_udata(struct hid_item *item)
 293 {
 294         switch (item->size) {
 295         case 1: return item->data.u8;
 296         case 2: return item->data.u16;
 297         case 4: return item->data.u32;
 298         }
 299         return 0;
 300 }
 301
 302 static s32 item_sdata(struct hid_item *item)
 303 {
 304         switch (item->size) {
 305         case 1: return item->data.s8;
 306         case 2: return item->data.s16;
 307         case 4: return item->data.s32;
 308         }
 309         return 0;
 310 }
 311
 312 /*
 313  * Process a global item.
 314  */
 315
 316 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 317 {
 318         switch (item->tag) {
 319         case HID_GLOBAL_ITEM_TAG_PUSH:
 320
 321                 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
 322                         hid_err(parser->device, "global environment stack overflow\n");
 323                         return -1;
 324                 }
 325
 326                 memcpy(parser->global_stack + parser->global_stack_ptr++,
 327                         &parser->global, sizeof(struct hid_global));
 328                 return 0;
 329
 330         case HID_GLOBAL_ITEM_TAG_POP:
 331
 332                 if (!parser->global_stack_ptr) {
 333                         hid_err(parser->device, "global environment stack underflow\n");
 334                         return -1;
 335                 }
 336
 337                 memcpy(&parser->global, parser->global_stack +
 338                         --parser->global_stack_ptr, sizeof(struct hid_global));
 339                 return 0;
 340
 341         case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
 342                 parser->global.usage_page = item_udata(item);
 343                 return 0;
 344
 345         case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
 346                 parser->global.logical_minimum = item_sdata(item);
 347                 return 0;
 348
 349         case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
 350                 if (parser->global.logical_minimum < 0)
 351                         parser->global.logical_maximum = item_sdata(item);
 352                 else
 353                         parser->global.logical_maximum = item_udata(item);
 354                 return 0;
 355
 356         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
 357                 parser->global.physical_minimum = item_sdata(item);
 358                 return 0;
 359
 360         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
 361                 if (parser->global.physical_minimum < 0)
 362                         parser->global.physical_maximum = item_sdata(item);
 363                 else
 364                         parser->global.physical_maximum = item_udata(item);
 365                 return 0;
 366
 367         case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
 368                 parser->global.unit_exponent = item_sdata(item);
 369                 return 0;
 370
 371         case HID_GLOBAL_ITEM_TAG_UNIT:
 372                 parser->global.unit = item_udata(item);
 373                 return 0;
 374
 375         case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 376                 parser->global.report_size = item_udata(item);
 377                 if (parser->global.report_size > 128) {
 378                         hid_err(parser->device, "invalid report_size %d\n",
 379                                         parser->global.report_size);
 380                         return -1;
 381                 }
 382                 return 0;
 383
 384         case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 385                 parser->global.report_count = item_udata(item);
 386                 if (parser->global.report_count > HID_MAX_USAGES) {
 387                         hid_err(parser->device, "invalid report_count %d\n",
 388                                         parser->global.report_count);
 389                         return -1;
 390                 }
 391                 return 0;
 392
 393         case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 394                 parser->global.report_id = item_udata(item);
 395                 if (parser->global.report_id == 0) {
 396                         hid_err(parser->device, "report_id 0 is invalid\n");
 397                         return -1;
 398                 }
 399                 return 0;
 400
 401         default:
 402                 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
 403                 return -1;
 404         }
 405 }
 406
 407 /*
 408  * Process a local item.
 409  */
 410
 411 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 412 {
 413         __u32 data;
 414         unsigned n;
 415
 416         data = item_udata(item);
 417
 418         switch (item->tag) {
 419         case HID_LOCAL_ITEM_TAG_DELIMITER:
 420
 421                 if (data) {
 422                         /*
 423                          * We treat items before the first delimiter
 424                          * as global to all usage sets (branch 0).
 425                          * In the moment we process only these global
 426                          * items and the first delimiter set.
 427                          */
 428                         if (parser->local.delimiter_depth != 0) {
 429                                 hid_err(parser->device, "nested delimiters\n");
 430                                 return -1;
 431                         }
 432                         parser->local.delimiter_depth++;
 433                         parser->local.delimiter_branch++;
 434                 } else {
 435                         if (parser->local.delimiter_depth < 1) {
 436                                 hid_err(parser->device, "bogus close delimiter\n");
 437                                 return -1;
 438                         }
 439                         parser->local.delimiter_depth--;
 440                 }
 441                 return 1;
 442
 443         case HID_LOCAL_ITEM_TAG_USAGE:
 444
 445                 if (parser->local.delimiter_branch > 1) {
 446                         dbg_hid("alternative usage ignored\n");
 447                         return 0;
 448                 }
 449
 450                 if (item->size <= 2)
 451                         data = (parser->global.usage_page << 16) + data;
 452
 453                 return hid_add_usage(parser, data);
 454
 455         case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 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                 parser->local.usage_minimum = data;
 466                 return 0;
 467
 468         case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 469
 470                 if (parser->local.delimiter_branch > 1) {
 471                         dbg_hid("alternative usage ignored\n");
 472                         return 0;
 473                 }
 474
 475                 if (item->size <= 2)
 476                         data = (parser->global.usage_page << 16) + data;
 477
 478                 for (n = parser->local.usage_minimum; n <= data; n++)
 479                         if (hid_add_usage(parser, n)) {
 480                                 dbg_hid("hid_add_usage failed\n");
 481                                 return -1;
 482                         }
 483                 return 0;
 484
 485         default:
 486
 487                 dbg_hid("unknown local item tag 0x%x\n", item->tag);
 488                 return 0;
 489         }
 490         return 0;
 491 }
 492
 493 /*
 494  * Process a main item.
 495  */
 496
 497 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 498 {
 499         __u32 data;
 500         int ret;
 501
 502         data = item_udata(item);
 503
 504         switch (item->tag) {
 505         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 506                 ret = open_collection(parser, data & 0xff);
 507                 break;
 508         case HID_MAIN_ITEM_TAG_END_COLLECTION:
 509                 ret = close_collection(parser);
 510                 break;
 511         case HID_MAIN_ITEM_TAG_INPUT:
 512                 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
 513                 break;
 514         case HID_MAIN_ITEM_TAG_OUTPUT:
 515                 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
 516                 break;
 517         case HID_MAIN_ITEM_TAG_FEATURE:
 518                 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 519                 break;
 520         default:
 521                 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
 522                 ret = 0;
 523         }
 524
 525         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
 526
 527         return ret;
 528 }
 529
 530 /*
 531  * Process a reserved item.
 532  */
 533
 534 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
 535 {
 536         dbg_hid("reserved item type, tag 0x%x\n", item->tag);
 537         return 0;
 538 }
 539
 540 /*
 541  * Free a report and all registered fields. The field->usage and
 542  * field->value table's are allocated behind the field, so we need
 543  * only to free(field) itself.
 544  */
 545
 546 static void hid_free_report(struct hid_report *report)
 547 {
 548         unsigned n;
 549
 550         for (n = 0; n < report->maxfield; n++)
 551                 kfree(report->field[n]);
 552         kfree(report);
 553 }
 554
 555 /*
 556  * Close report. This function returns the device
 557  * state to the point prior to hid_open_report().
 558  */
 559 static void hid_close_report(struct hid_device *device)
 560 {
 561         unsigned i, j;
 562
 563         for (i = 0; i < HID_REPORT_TYPES; i++) {
 564                 struct hid_report_enum *report_enum = device->report_enum + i;
 565
 566                 for (j = 0; j < 256; j++) {
 567                         struct hid_report *report = report_enum->report_id_hash[j];
 568                         if (report)
 569                                 hid_free_report(report);
 570                 }
 571                 memset(report_enum, 0, sizeof(*report_enum));
 572                 INIT_LIST_HEAD(&report_enum->report_list);
 573         }
 574
 575         kfree(device->rdesc);
 576         device->rdesc = NULL;
 577         device->rsize = 0;
 578
 579         kfree(device->collection);
 580         device->collection = NULL;
 581         device->collection_size = 0;
 582         device->maxcollection = 0;
 583         device->maxapplication = 0;
 584
 585         device->status &= ~HID_STAT_PARSED;
 586 }
 587
 588 /*
 589  * Free a device structure, all reports, and all fields.
 590  */
 591
 592 static void hid_device_release(struct device *dev)
 593 {
 594         struct hid_device *hid = container_of(dev, struct hid_device, dev);
 595
 596         hid_close_report(hid);
 597         kfree(hid->dev_rdesc);
 598         kfree(hid);
 599 }
 600
 601 /*
 602  * Fetch a report description item from the data stream. We support long
 603  * items, though they are not used yet.
 604  */
 605
 606 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
 607 {
 608         u8 b;
 609
 610         if ((end - start) <= 0)
 611                 return NULL;
 612
 613         b = *start++;
 614
 615         item->type = (b >> 2) & 3;
 616         item->tag  = (b >> 4) & 15;
 617
 618         if (item->tag == HID_ITEM_TAG_LONG) {
 619
 620                 item->format = HID_ITEM_FORMAT_LONG;
 621
 622                 if ((end - start) < 2)
 623                         return NULL;
 624
 625                 item->size = *start++;
 626                 item->tag  = *start++;
 627
 628                 if ((end - start) < item->size)
 629                         return NULL;
 630
 631                 item->data.longdata = start;
 632                 start += item->size;
 633                 return start;
 634         }
 635
 636         item->format = HID_ITEM_FORMAT_SHORT;
 637         item->size = b & 3;
 638
 639         switch (item->size) {
 640         case 0:
 641                 return start;
 642
 643         case 1:
 644                 if ((end - start) < 1)
 645                         return NULL;
 646                 item->data.u8 = *start++;
 647                 return start;
 648
 649         case 2:
 650                 if ((end - start) < 2)
 651                         return NULL;
 652                 item->data.u16 = get_unaligned_le16(start);
 653                 start = (__u8 *)((__le16 *)start + 1);
 654                 return start;
 655
 656         case 3:
 657                 item->size++;
 658                 if ((end - start) < 4)
 659                         return NULL;
 660                 item->data.u32 = get_unaligned_le32(start);
 661                 start = (__u8 *)((__le32 *)start + 1);
 662                 return start;
 663         }
 664
 665         return NULL;
 666 }
 667
 668 static void hid_scan_usage(struct hid_device *hid, u32 usage)
 669 {
 670         if (usage == HID_DG_CONTACTID)
 671                 hid->group = HID_GROUP_MULTITOUCH;
 672 }
 673
 674 /*
 675  * Scan a report descriptor before the device is added to the bus.
 676  * Sets device groups and other properties that determine what driver
 677  * to load.
 678  */
 679 static int hid_scan_report(struct hid_device *hid)
 680 {
 681         unsigned int page = 0, delim = 0;
 682         __u8 *start = hid->dev_rdesc;
 683         __u8 *end = start + hid->dev_rsize;
 684         unsigned int u, u_min = 0, u_max = 0;
 685         struct hid_item item;
 686
 687         hid->group = HID_GROUP_GENERIC;
 688         while ((start = fetch_item(start, end, &item)) != NULL) {
 689                 if (item.format != HID_ITEM_FORMAT_SHORT)
 690                         return -EINVAL;
 691                 if (item.type == HID_ITEM_TYPE_GLOBAL) {
 692                         if (item.tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE)
 693                                 page = item_udata(&item) << 16;
 694                 } else if (item.type == HID_ITEM_TYPE_LOCAL) {
 695                         if (delim > 1)
 696                                 break;
 697                         u = item_udata(&item);
 698                         if (item.size <= 2)
 699                                 u += page;
 700                         switch (item.tag) {
 701                         case HID_LOCAL_ITEM_TAG_DELIMITER:
 702                                 delim += !!u;
 703                                 break;
 704                         case HID_LOCAL_ITEM_TAG_USAGE:
 705                                 hid_scan_usage(hid, u);
 706                                 break;
 707                         case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 708                                 u_min = u;
 709                                 break;
 710                         case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 711                                 u_max = u;
 712                                 for (u = u_min; u <= u_max; u++)
 713                                         hid_scan_usage(hid, u);
 714                                 break;
 715                         }
 716                 }
 717         }
 718
 719         return 0;
 720 }
 721
 722 /**
 723  * hid_parse_report - parse device report
 724  *
 725  * @device: hid device
 726  * @start: report start
 727  * @size: report size
 728  *
 729  * Allocate the device report as read by the bus driver. This function should
 730  * only be called from parse() in ll drivers.
 731  */
 732 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
 733 {
 734         hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
 735         if (!hid->dev_rdesc)
 736                 return -ENOMEM;
 737         hid->dev_rsize = size;
 738         return 0;
 739 }
 740 EXPORT_SYMBOL_GPL(hid_parse_report);
 741
 742 /**
 743  * hid_open_report - open a driver-specific device report
 744  *
 745  * @device: hid device
 746  *
 747  * Parse a report description into a hid_device structure. Reports are
 748  * enumerated, fields are attached to these reports.
 749  * 0 returned on success, otherwise nonzero error value.
 750  *
 751  * This function (or the equivalent hid_parse() macro) should only be
 752  * called from probe() in drivers, before starting the device.
 753  */
 754 int hid_open_report(struct hid_device *device)
 755 {
 756         struct hid_parser *parser;
 757         struct hid_item item;
 758         unsigned int size;
 759         __u8 *start;
 760         __u8 *buf;
 761         __u8 *end;
 762         int ret;
 763         static int (*dispatch_type[])(struct hid_parser *parser,
 764                                       struct hid_item *item) = {
 765                 hid_parser_main,
 766                 hid_parser_global,
 767                 hid_parser_local,
 768                 hid_parser_reserved
 769         };
 770
 771         if (WARN_ON(device->status & HID_STAT_PARSED))
 772                 return -EBUSY;
 773
 774         start = device->dev_rdesc;
 775         if (WARN_ON(!start))
 776                 return -ENODEV;
 777         size = device->dev_rsize;
 778
 779         buf = kmemdup(start, size, GFP_KERNEL);
 780         if (buf == NULL)
 781                 return -ENOMEM;
 782
 783         if (device->driver->report_fixup)
 784                 start = device->driver->report_fixup(device, buf, &size);
 785         else
 786                 start = buf;
 787
 788         start = kmemdup(start, size, GFP_KERNEL);
 789         kfree(buf);
 790         if (start == NULL)
 791                 return -ENOMEM;
 792
 793         device->rdesc = start;
 794         device->rsize = size;
 795
 796         parser = vzalloc(sizeof(struct hid_parser));
 797         if (!parser) {
 798                 ret = -ENOMEM;
 799                 goto err;
 800         }
 801
 802         parser->device = device;
 803
 804         end = start + size;
 805
 806         device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
 807                                      sizeof(struct hid_collection), GFP_KERNEL);
 808         if (!device->collection) {
 809                 ret = -ENOMEM;
 810                 goto err;
 811         }
 812         device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
 813
 814         ret = -EINVAL;
 815         while ((start = fetch_item(start, end, &item)) != NULL) {
 816
 817                 if (item.format != HID_ITEM_FORMAT_SHORT) {
 818                         hid_err(device, "unexpected long global item\n");
 819                         goto err;
 820                 }
 821
 822                 if (dispatch_type[item.type](parser, &item)) {
 823                         hid_err(device, "item %u %u %u %u parsing failed\n",
 824                                 item.format, (unsigned)item.size,
 825                                 (unsigned)item.type, (unsigned)item.tag);
 826                         goto err;
 827                 }
 828
 829                 if (start == end) {
 830                         if (parser->collection_stack_ptr) {
 831                                 hid_err(device, "unbalanced collection at end of report description\n");
 832                                 goto err;
 833                         }
 834                         if (parser->local.delimiter_depth) {
 835                                 hid_err(device, "unbalanced delimiter at end of report description\n");
 836                                 goto err;
 837                         }
 838                         vfree(parser);
 839                         device->status |= HID_STAT_PARSED;
 840                         return 0;
 841                 }
 842         }
 843
 844         hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
 845 err:
 846         vfree(parser);
 847         hid_close_report(device);
 848         return ret;
 849 }
 850 EXPORT_SYMBOL_GPL(hid_open_report);
 851
 852 /*
 853  * Convert a signed n-bit integer to signed 32-bit integer. Common
 854  * cases are done through the compiler, the screwed things has to be
 855  * done by hand.
 856  */
 857
 858 static s32 snto32(__u32 value, unsigned n)
 859 {
 860         switch (n) {
 861         case 8:  return ((__s8)value);
 862         case 16: return ((__s16)value);
 863         case 32: return ((__s32)value);
 864         }
 865         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
 866 }
 867
 868 /*
 869  * Convert a signed 32-bit integer to a signed n-bit integer.
 870  */
 871
 872 static u32 s32ton(__s32 value, unsigned n)
 873 {
 874         s32 a = value >> (n - 1);
 875         if (a && a != -1)
 876                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
 877         return value & ((1 << n) - 1);
 878 }
 879
 880 /*
 881  * Extract/implement a data field from/to a little endian report (bit array).
 882  *
 883  * Code sort-of follows HID spec:
 884  *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
 885  *
 886  * While the USB HID spec allows unlimited length bit fields in "report
 887  * descriptors", most devices never use more than 16 bits.
 888  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
 889  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
 890  */
 891
 892 static __u32 extract(const struct hid_device *hid, __u8 *report,
 893                      unsigned offset, unsigned n)
 894 {
 895         u64 x;
 896
 897         if (n > 32)
 898                 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
 899                          n, current->comm);
 900
 901         report += offset >> 3;  /* adjust byte index */
 902         offset &= 7;            /* now only need bit offset into one byte */
 903         x = get_unaligned_le64(report);
 904         x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
 905         return (u32) x;
 906 }
 907
 908 /*
 909  * "implement" : set bits in a little endian bit stream.
 910  * Same concepts as "extract" (see comments above).
 911  * The data mangled in the bit stream remains in little endian
 912  * order the whole time. It make more sense to talk about
 913  * endianness of register values by considering a register
 914  * a "cached" copy of the little endiad bit stream.
 915  */
 916 static void implement(const struct hid_device *hid, __u8 *report,
 917                       unsigned offset, unsigned n, __u32 value)
 918 {
 919         u64 x;
 920         u64 m = (1ULL << n) - 1;
 921
 922         if (n > 32)
 923                 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
 924                          __func__, n, current->comm);
 925
 926         if (value > m)
 927                 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
 928                          __func__, value, current->comm);
 929         WARN_ON(value > m);
 930         value &= m;
 931
 932         report += offset >> 3;
 933         offset &= 7;
 934
 935         x = get_unaligned_le64(report);
 936         x &= ~(m << offset);
 937         x |= ((u64)value) << offset;
 938         put_unaligned_le64(x, report);
 939 }
 940
 941 /*
 942  * Search an array for a value.
 943  */
 944
 945 static int search(__s32 *array, __s32 value, unsigned n)
 946 {
 947         while (n--) {
 948                 if (*array++ == value)
 949                         return 0;
 950         }
 951         return -1;
 952 }
 953
 954 /**
 955  * hid_match_report - check if driver's raw_event should be called
 956  *
 957  * @hid: hid device
 958  * @report_type: type to match against
 959  *
 960  * compare hid->driver->report_table->report_type to report->type
 961  */
 962 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
 963 {
 964         const struct hid_report_id *id = hid->driver->report_table;
 965
 966         if (!id) /* NULL means all */
 967                 return 1;
 968
 969         for (; id->report_type != HID_TERMINATOR; id++)
 970                 if (id->report_type == HID_ANY_ID ||
 971                                 id->report_type == report->type)
 972                         return 1;
 973         return 0;
 974 }
 975
 976 /**
 977  * hid_match_usage - check if driver's event should be called
 978  *
 979  * @hid: hid device
 980  * @usage: usage to match against
 981  *
 982  * compare hid->driver->usage_table->usage_{type,code} to
 983  * usage->usage_{type,code}
 984  */
 985 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
 986 {
 987         const struct hid_usage_id *id = hid->driver->usage_table;
 988
 989         if (!id) /* NULL means all */
 990                 return 1;
 991
 992         for (; id->usage_type != HID_ANY_ID - 1; id++)
 993                 if ((id->usage_hid == HID_ANY_ID ||
 994                                 id->usage_hid == usage->hid) &&
 995                                 (id->usage_type == HID_ANY_ID ||
 996                                 id->usage_type == usage->type) &&
 997                                 (id->usage_code == HID_ANY_ID ||
 998                                  id->usage_code == usage->code))
 999                         return 1;
1000         return 0;
1001 }
1002
1003 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1004                 struct hid_usage *usage, __s32 value, int interrupt)
1005 {
1006         struct hid_driver *hdrv = hid->driver;
1007         int ret;
1008
1009         if (!list_empty(&hid->debug_list))
1010                 hid_dump_input(hid, usage, value);
1011
1012         if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1013                 ret = hdrv->event(hid, field, usage, value);
1014                 if (ret != 0) {
1015                         if (ret < 0)
1016                                 hid_err(hid, "%s's event failed with %d\n",
1017                                                 hdrv->name, ret);
1018                         return;
1019                 }
1020         }
1021
1022         if (hid->claimed & HID_CLAIMED_INPUT)
1023                 hidinput_hid_event(hid, field, usage, value);
1024         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1025                 hid->hiddev_hid_event(hid, field, usage, value);
1026 }
1027
1028 /*
1029  * Analyse a received field, and fetch the data from it. The field
1030  * content is stored for next report processing (we do differential
1031  * reporting to the layer).
1032  */
1033
1034 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1035                             __u8 *data, int interrupt)
1036 {
1037         unsigned n;
1038         unsigned count = field->report_count;
1039         unsigned offset = field->report_offset;
1040         unsigned size = field->report_size;
1041         __s32 min = field->logical_minimum;
1042         __s32 max = field->logical_maximum;
1043         __s32 *value;
1044
1045         value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1046         if (!value)
1047                 return;
1048
1049         for (n = 0; n < count; n++) {
1050
1051                 value[n] = min < 0 ?
1052                         snto32(extract(hid, data, offset + n * size, size),
1053                                size) :
1054                         extract(hid, data, offset + n * size, size);
1055
1056                 /* Ignore report if ErrorRollOver */
1057                 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1058                     value[n] >= min && value[n] <= max &&
1059                     field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1060                         goto exit;
1061         }
1062
1063         for (n = 0; n < count; n++) {
1064
1065                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1066                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1067                         continue;
1068                 }
1069
1070                 if (field->value[n] >= min && field->value[n] <= max
1071                         && field->usage[field->value[n] - min].hid
1072                         && search(value, field->value[n], count))
1073                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1074
1075                 if (value[n] >= min && value[n] <= max
1076                         && field->usage[value[n] - min].hid
1077                         && search(field->value, value[n], count))
1078                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1079         }
1080
1081         memcpy(field->value, value, count * sizeof(__s32));
1082 exit:
1083         kfree(value);
1084 }
1085
1086 /*
1087  * Output the field into the report.
1088  */
1089
1090 static void hid_output_field(const struct hid_device *hid,
1091                              struct hid_field *field, __u8 *data)
1092 {
1093         unsigned count = field->report_count;
1094         unsigned offset = field->report_offset;
1095         unsigned size = field->report_size;
1096         unsigned n;
1097
1098         for (n = 0; n < count; n++) {
1099                 if (field->logical_minimum < 0) /* signed values */
1100                         implement(hid, data, offset + n * size, size,
1101                                   s32ton(field->value[n], size));
1102                 else                            /* unsigned values */
1103                         implement(hid, data, offset + n * size, size,
1104                                   field->value[n]);
1105         }
1106 }
1107
1108 /*
1109  * Create a report.
1110  */
1111
1112 void hid_output_report(struct hid_report *report, __u8 *data)
1113 {
1114         unsigned n;
1115
1116         if (report->id > 0)
1117                 *data++ = report->id;
1118
1119         memset(data, 0, ((report->size - 1) >> 3) + 1);
1120         for (n = 0; n < report->maxfield; n++)
1121                 hid_output_field(report->device, report->field[n], data);
1122 }
1123 EXPORT_SYMBOL_GPL(hid_output_report);
1124
1125 /*
1126  * Set a field value. The report this field belongs to has to be
1127  * created and transferred to the device, to set this value in the
1128  * device.
1129  */
1130
1131 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1132 {
1133         unsigned size = field->report_size;
1134
1135         hid_dump_input(field->report->device, field->usage + offset, value);
1136
1137         if (offset >= field->report_count) {
1138                 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1139                                 offset, field->report_count);
1140                 return -1;
1141         }
1142         if (field->logical_minimum < 0) {
1143                 if (value != snto32(s32ton(value, size), size)) {
1144                         hid_err(field->report->device, "value %d is out of range\n", value);
1145                         return -1;
1146                 }
1147         }
1148         field->value[offset] = value;
1149         return 0;
1150 }
1151 EXPORT_SYMBOL_GPL(hid_set_field);
1152
1153 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1154                 const u8 *data)
1155 {
1156         struct hid_report *report;
1157         unsigned int n = 0;     /* Normally report number is 0 */
1158
1159         /* Device uses numbered reports, data[0] is report number */
1160         if (report_enum->numbered)
1161                 n = *data;
1162
1163         report = report_enum->report_id_hash[n];
1164         if (report == NULL)
1165                 dbg_hid("undefined report_id %u received\n", n);
1166
1167         return report;
1168 }
1169
1170 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1171                 int interrupt)
1172 {
1173         struct hid_report_enum *report_enum = hid->report_enum + type;
1174         struct hid_report *report;
1175         unsigned int a;
1176         int rsize, csize = size;
1177         u8 *cdata = data;
1178         int ret = 0;
1179
1180         report = hid_get_report(report_enum, data);
1181         if (!report)
1182                 goto out;
1183
1184         if (report_enum->numbered) {
1185                 cdata++;
1186                 csize--;
1187         }
1188
1189         rsize = ((report->size - 1) >> 3) + 1;
1190
1191         if (rsize > HID_MAX_BUFFER_SIZE)
1192                 rsize = HID_MAX_BUFFER_SIZE;
1193
1194         if (csize < rsize) {
1195                 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1196                                 csize, rsize);
1197                 memset(cdata + csize, 0, rsize - csize);
1198         }
1199
1200         if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1201                 hid->hiddev_report_event(hid, report);
1202         if (hid->claimed & HID_CLAIMED_HIDRAW) {
1203                 ret = hidraw_report_event(hid, data, size);
1204                 if (ret)
1205                         goto out;
1206         }
1207
1208         if (hid->claimed != HID_CLAIMED_HIDRAW) {
1209                 for (a = 0; a < report->maxfield; a++)
1210                         hid_input_field(hid, report->field[a], cdata, interrupt);
1211         }
1212
1213         if (hid->claimed & HID_CLAIMED_INPUT)
1214                 hidinput_report_event(hid, report);
1215 out:
1216         return ret;
1217 }
1218 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1219
1220 /**
1221  * hid_input_report - report data from lower layer (usb, bt...)
1222  *
1223  * @hid: hid device
1224  * @type: HID report type (HID_*_REPORT)
1225  * @data: report contents
1226  * @size: size of data parameter
1227  * @interrupt: distinguish between interrupt and control transfers
1228  *
1229  * This is data entry for lower layers.
1230  */
1231 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1232 {
1233         struct hid_report_enum *report_enum;
1234         struct hid_driver *hdrv;
1235         struct hid_report *report;
1236         char *buf;
1237         unsigned int i;
1238         int ret = 0;
1239
1240         if (!hid)
1241                 return -ENODEV;
1242
1243         if (down_trylock(&hid->driver_lock))
1244                 return -EBUSY;
1245
1246         if (!hid->driver) {
1247                 ret = -ENODEV;
1248                 goto unlock;
1249         }
1250         report_enum = hid->report_enum + type;
1251         hdrv = hid->driver;
1252
1253         if (!size) {
1254                 dbg_hid("empty report\n");
1255                 ret = -1;
1256                 goto unlock;
1257         }
1258
1259         /* Avoid unnecessary overhead if debugfs is disabled */
1260         if (list_empty(&hid->debug_list))
1261                 goto nomem;
1262
1263         buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1264
1265         if (!buf)
1266                 goto nomem;
1267
1268         /* dump the report */
1269         snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1270                         "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1271         hid_debug_event(hid, buf);
1272
1273         for (i = 0; i < size; i++) {
1274                 snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1275                                 " %02x", data[i]);
1276                 hid_debug_event(hid, buf);
1277         }
1278         hid_debug_event(hid, "\n");
1279         kfree(buf);
1280
1281 nomem:
1282         report = hid_get_report(report_enum, data);
1283
1284         if (!report) {
1285                 ret = -1;
1286                 goto unlock;
1287         }
1288
1289         if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1290                 ret = hdrv->raw_event(hid, report, data, size);
1291                 if (ret != 0) {
1292                         ret = ret < 0 ? ret : 0;
1293                         goto unlock;
1294                 }
1295         }
1296
1297         ret = hid_report_raw_event(hid, type, data, size, interrupt);
1298
1299 unlock:
1300         up(&hid->driver_lock);
1301         return ret;
1302 }
1303 EXPORT_SYMBOL_GPL(hid_input_report);
1304
1305 static bool hid_match_one_id(struct hid_device *hdev,
1306                 const struct hid_device_id *id)
1307 {
1308         return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1309                 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1310                 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1311                 (id->product == HID_ANY_ID || id->product == hdev->product);
1312 }
1313
1314 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1315                 const struct hid_device_id *id)
1316 {
1317         for (; id->bus; id++)
1318                 if (hid_match_one_id(hdev, id))
1319                         return id;
1320
1321         return NULL;
1322 }
1323
1324 static const struct hid_device_id hid_hiddev_list[] = {
1325         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1326         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1327         { }
1328 };
1329
1330 static bool hid_hiddev(struct hid_device *hdev)
1331 {
1332         return !!hid_match_id(hdev, hid_hiddev_list);
1333 }
1334
1335
1336 static ssize_t
1337 read_report_descriptor(struct file *filp, struct kobject *kobj,
1338                 struct bin_attribute *attr,
1339                 char *buf, loff_t off, size_t count)
1340 {
1341         struct device *dev = container_of(kobj, struct device, kobj);
1342         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1343
1344         if (off >= hdev->rsize)
1345                 return 0;
1346
1347         if (off + count > hdev->rsize)
1348                 count = hdev->rsize - off;
1349
1350         memcpy(buf, hdev->rdesc + off, count);
1351
1352         return count;
1353 }
1354
1355 static struct bin_attribute dev_bin_attr_report_desc = {
1356         .attr = { .name = "report_descriptor", .mode = 0444 },
1357         .read = read_report_descriptor,
1358         .size = HID_MAX_DESCRIPTOR_SIZE,
1359 };
1360
1361 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1362 {
1363         static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1364                 "Joystick", "Gamepad", "Keyboard", "Keypad",
1365                 "Multi-Axis Controller"
1366         };
1367         const char *type, *bus;
1368         char buf[64];
1369         unsigned int i;
1370         int len;
1371         int ret;
1372
1373         if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1374                 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1375         if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1376                 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1377         if (hdev->bus != BUS_USB)
1378                 connect_mask &= ~HID_CONNECT_HIDDEV;
1379         if (hid_hiddev(hdev))
1380                 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1381
1382         if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1383                                 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1384                 hdev->claimed |= HID_CLAIMED_INPUT;
1385
1386         if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1387                         !hdev->hiddev_connect(hdev,
1388                                 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1389                 hdev->claimed |= HID_CLAIMED_HIDDEV;
1390         if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1391                 hdev->claimed |= HID_CLAIMED_HIDRAW;
1392
1393         /* Drivers with the ->raw_event callback set are not required to connect
1394          * to any other listener. */
1395         if (!hdev->claimed && !hdev->driver->raw_event) {
1396                 hid_err(hdev, "device has no listeners, quitting\n");
1397                 return -ENODEV;
1398         }
1399
1400         if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1401                         (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1402                 hdev->ff_init(hdev);
1403
1404         len = 0;
1405         if (hdev->claimed & HID_CLAIMED_INPUT)
1406                 len += sprintf(buf + len, "input");
1407         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1408                 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1409                                 hdev->minor);
1410         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1411                 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1412                                 ((struct hidraw *)hdev->hidraw)->minor);
1413
1414         type = "Device";
1415         for (i = 0; i < hdev->maxcollection; i++) {
1416                 struct hid_collection *col = &hdev->collection[i];
1417                 if (col->type == HID_COLLECTION_APPLICATION &&
1418                    (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1419                    (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1420                         type = types[col->usage & 0xffff];
1421                         break;
1422                 }
1423         }
1424
1425         switch (hdev->bus) {
1426         case BUS_USB:
1427                 bus = "USB";
1428                 break;
1429         case BUS_BLUETOOTH:
1430                 bus = "BLUETOOTH";
1431                 break;
1432         default:
1433                 bus = "<UNKNOWN>";
1434         }
1435
1436         ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1437         if (ret)
1438                 hid_warn(hdev,
1439                          "can't create sysfs report descriptor attribute err: %d\n", ret);
1440
1441         hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1442                  buf, bus, hdev->version >> 8, hdev->version & 0xff,
1443                  type, hdev->name, hdev->phys);
1444
1445         return 0;
1446 }
1447 EXPORT_SYMBOL_GPL(hid_connect);
1448
1449 void hid_disconnect(struct hid_device *hdev)
1450 {
1451         device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1452         if (hdev->claimed & HID_CLAIMED_INPUT)
1453                 hidinput_disconnect(hdev);
1454         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1455                 hdev->hiddev_disconnect(hdev);
1456         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1457                 hidraw_disconnect(hdev);
1458 }
1459 EXPORT_SYMBOL_GPL(hid_disconnect);
1460
1461 /*
1462  * A list of devices for which there is a specialized driver on HID bus.
1463  *
1464  * Please note that for multitouch devices (driven by hid-multitouch driver),
1465  * there is a proper autodetection and autoloading in place (based on presence
1466  * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1467  * as we are doing the right thing in hid_scan_usage().
1468  */
1469 static const struct hid_device_id hid_have_special_driver[] = {
1470         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1471         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1472         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1473         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1474         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1475         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1476         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1477         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1478         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1479         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1480         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1481         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1482         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1483         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1484         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1485         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1486         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1487         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1488         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1489         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1490         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1491         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1492         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1493         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1494         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1495         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1496         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1497         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1498         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1499         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1500         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1501         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1502         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1503         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1504         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1505         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1506         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1507         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1508         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1509         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1510         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1511         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1512         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1513         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1514         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1515         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1516         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1517         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1518         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1519         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1520         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1521         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1522         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1523         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1524         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1525         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1526         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1527         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1528         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1529         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1530         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1531         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1532         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1533         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1534         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1535         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1536         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1537         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1538         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1539         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1540         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1541         { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1542         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1543         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1544         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1545         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1546         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1547         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1548         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1549         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1550         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1551         { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1552         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1553         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1554         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1555         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1556         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1557         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1558         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1559         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1560         { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1561         { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1562         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1563         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1564         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1565         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1566         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1567         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1568         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1569         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1570         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1571         { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_1020) },
1572         { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_09FA) },
1573         { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_1020) },
1574         { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_09FA) },
1575         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1576         { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1577         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1578         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1579         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1580         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1581         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1582         { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1583 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1584         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1585 #endif
1586         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1587         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1588         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1589         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1590         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1591         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1592         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1593         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1594         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1595         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1596         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1597         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1598         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1599         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1600         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1601         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1602         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1603         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1604         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1605         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1606         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1607         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1608         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1609         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1610         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1611 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1612         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1613         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1614 #endif
1615         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1616         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1617         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1618         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1619         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1620         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1621         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1622         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1623         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1624         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1625         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1626         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1627         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1628         { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1629         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1630         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1631         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1632         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1633         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1634         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1635         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1636         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1637         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1638         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1639         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1640         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1641         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1642         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1643         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1644         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1645         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1646         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1647         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1648         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1649         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1650         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1651         { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1652 #if IS_ENABLED(CONFIG_HID_ROCCAT)
1653         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1654         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1655         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1656         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1657         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1658         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1659         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1660         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1661         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1662 #endif
1663         { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1664         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1665         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1666         { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1667         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1668         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1669         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1670         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1671         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1672         { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1673         { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_SENSOR_HUB_7014) },
1674         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1675         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1676         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1677         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1678         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1679         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1680         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1681         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1682         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1683         { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1684         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1685         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1686         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1687         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1688         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1689         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1690         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1691         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1692         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1693         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1694         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1695         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1696         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1697         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1698         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1699         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1700         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1701         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1702         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1703         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1704         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1705         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1706         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1707         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1708         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1709         { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1710         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1711         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1712         { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1713
1714         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1715         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1716         { }
1717 };
1718
1719 struct hid_dynid {
1720         struct list_head list;
1721         struct hid_device_id id;
1722 };
1723
1724 /**
1725  * store_new_id - add a new HID device ID to this driver and re-probe devices
1726  * @driver: target device driver
1727  * @buf: buffer for scanning device ID data
1728  * @count: input size
1729  *
1730  * Adds a new dynamic hid device ID to this driver,
1731  * and causes the driver to probe for all devices again.
1732  */
1733 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1734                 size_t count)
1735 {
1736         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1737         struct hid_dynid *dynid;
1738         __u32 bus, vendor, product;
1739         unsigned long driver_data = 0;
1740         int ret;
1741
1742         ret = sscanf(buf, "%x %x %x %lx",
1743                         &bus, &vendor, &product, &driver_data);
1744         if (ret < 3)
1745                 return -EINVAL;
1746
1747         dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1748         if (!dynid)
1749                 return -ENOMEM;
1750
1751         dynid->id.bus = bus;
1752         dynid->id.group = HID_GROUP_ANY;
1753         dynid->id.vendor = vendor;
1754         dynid->id.product = product;
1755         dynid->id.driver_data = driver_data;
1756
1757         spin_lock(&hdrv->dyn_lock);
1758         list_add_tail(&dynid->list, &hdrv->dyn_list);
1759         spin_unlock(&hdrv->dyn_lock);
1760
1761         ret = driver_attach(&hdrv->driver);
1762
1763         return ret ? : count;
1764 }
1765 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1766
1767 static void hid_free_dynids(struct hid_driver *hdrv)
1768 {
1769         struct hid_dynid *dynid, *n;
1770
1771         spin_lock(&hdrv->dyn_lock);
1772         list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1773                 list_del(&dynid->list);
1774                 kfree(dynid);
1775         }
1776         spin_unlock(&hdrv->dyn_lock);
1777 }
1778
1779 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1780                 struct hid_driver *hdrv)
1781 {
1782         struct hid_dynid *dynid;
1783
1784         spin_lock(&hdrv->dyn_lock);
1785         list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1786                 if (hid_match_one_id(hdev, &dynid->id)) {
1787                         spin_unlock(&hdrv->dyn_lock);
1788                         return &dynid->id;
1789                 }
1790         }
1791         spin_unlock(&hdrv->dyn_lock);
1792
1793         return hid_match_id(hdev, hdrv->id_table);
1794 }
1795
1796 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1797 {
1798         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1799         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1800
1801         return hid_match_device(hdev, hdrv) != NULL;
1802 }
1803
1804 static int hid_device_probe(struct device *dev)
1805 {
1806         struct hid_driver *hdrv = container_of(dev->driver,
1807                         struct hid_driver, driver);
1808         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1809         const struct hid_device_id *id;
1810         int ret = 0;
1811
1812         if (down_interruptible(&hdev->driver_lock))
1813                 return -EINTR;
1814
1815         if (!hdev->driver) {
1816                 id = hid_match_device(hdev, hdrv);
1817                 if (id == NULL) {
1818                         ret = -ENODEV;
1819                         goto unlock;
1820                 }
1821
1822                 hdev->driver = hdrv;
1823                 if (hdrv->probe) {
1824                         ret = hdrv->probe(hdev, id);
1825                 } else { /* default probe */
1826                         ret = hid_open_report(hdev);
1827                         if (!ret)
1828                                 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1829                 }
1830                 if (ret) {
1831                         hid_close_report(hdev);
1832                         hdev->driver = NULL;
1833                 }
1834         }
1835 unlock:
1836         up(&hdev->driver_lock);
1837         return ret;
1838 }
1839
1840 static int hid_device_remove(struct device *dev)
1841 {
1842         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1843         struct hid_driver *hdrv;
1844
1845         if (down_interruptible(&hdev->driver_lock))
1846                 return -EINTR;
1847
1848         hdrv = hdev->driver;
1849         if (hdrv) {
1850                 if (hdrv->remove)
1851                         hdrv->remove(hdev);
1852                 else /* default remove */
1853                         hid_hw_stop(hdev);
1854                 hid_close_report(hdev);
1855                 hdev->driver = NULL;
1856         }
1857
1858         up(&hdev->driver_lock);
1859         return 0;
1860 }
1861
1862 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
1863                              char *buf)
1864 {
1865         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1866         int len;
1867
1868         len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
1869                        hdev->bus, hdev->group, hdev->vendor, hdev->product);
1870
1871         return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
1872 }
1873
1874 static struct device_attribute hid_dev_attrs[] = {
1875         __ATTR_RO(modalias),
1876         __ATTR_NULL,
1877 };
1878
1879 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1880 {
1881         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1882
1883         if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1884                         hdev->bus, hdev->vendor, hdev->product))
1885                 return -ENOMEM;
1886
1887         if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1888                 return -ENOMEM;
1889
1890         if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1891                 return -ENOMEM;
1892
1893         if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1894                 return -ENOMEM;
1895
1896         if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
1897                            hdev->bus, hdev->group, hdev->vendor, hdev->product))
1898                 return -ENOMEM;
1899
1900         return 0;
1901 }
1902
1903 static struct bus_type hid_bus_type = {
1904         .name           = "hid",
1905         .dev_attrs      = hid_dev_attrs,
1906         .match          = hid_bus_match,
1907         .probe          = hid_device_probe,
1908         .remove         = hid_device_remove,
1909         .uevent         = hid_uevent,
1910 };
1911
1912 /* a list of devices that shouldn't be handled by HID core at all */
1913 static const struct hid_device_id hid_ignore_list[] = {
1914         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1915         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1916         { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1917         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1918         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1919         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1920         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1921         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1922         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1923         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1924         { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1925         { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1926         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1927         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1928         { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1929         { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
1930         { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1931         { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1932         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1933         { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1934         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1935         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1936         { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1937         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1938         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1939         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1940         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
1941         { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1942         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1943         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1944         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1945         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1946         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1947         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1948         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1949         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1950         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1951         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1952         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1953         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1954         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1955         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1956         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1957         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1958         { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1959         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1960         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1961         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
1962         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1963         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1964         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1965         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1966         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1967         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1968         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1969         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1970         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1971         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1972         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1973         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1974         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1975         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1976         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1977         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1978         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1979         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1980         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1981         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1982         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1983         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1984         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1985         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1986         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1987         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1988         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1989         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1990         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1991         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1992         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1993         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1994         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1995         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1996         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1997         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1998         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1999         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2000         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2001         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2002         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2003         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2004         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2005         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2006         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2007         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2008         { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2009         { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2010         { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2011         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2012         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2013         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2014         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2015         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2016         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2017         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2018         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2019         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2020         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2021         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2022         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2023         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2024         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2025         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2026         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2027         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2028         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2029         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2030         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2031         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2032         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2033         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2034         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2035         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2036         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2037         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2038         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2039         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2040         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2041         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2042         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2043         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2044         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2045         { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2046         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2047         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2048         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2049         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2050         { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2051         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2052         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2053         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2054         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2055         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2056         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2057         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2058         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2059         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2060         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2061         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2062         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2063         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2064         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2065         { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2066         { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2067 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2068         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2069         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2070         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2071         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2072         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2073         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2074         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2075         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2076 #endif
2077         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2078         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2079         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2080         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2081         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2082         { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2083         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2084         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2085         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2086         { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2087         { }
2088 };
2089
2090 /**
2091  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2092  *
2093  * There are composite devices for which we want to ignore only a certain
2094  * interface. This is a list of devices for which only the mouse interface will
2095  * be ignored. This allows a dedicated driver to take care of the interface.
2096  */
2097 static const struct hid_device_id hid_mouse_ignore_list[] = {
2098         /* appletouch driver */
2099         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2100         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2101         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2102         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2103         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2104         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2105         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2106         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2107         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2108         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2109         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2110         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2111         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2112         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2113         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2114         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2115         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2116         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2117         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2118         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2119         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2120         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2121         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2122         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2123         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2124         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2125         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2126         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2127         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2128         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2129         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2130         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2131         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2132         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2133         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2134         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2135         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2136         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2137         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2138         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2139         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2140         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2141         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2142         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2143         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2144         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2145         { }
2146 };
2147
2148 static bool hid_ignore(struct hid_device *hdev)
2149 {
2150         switch (hdev->vendor) {
2151         case USB_VENDOR_ID_CODEMERCS:
2152                 /* ignore all Code Mercenaries IOWarrior devices */
2153                 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2154                                 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2155                         return true;
2156                 break;
2157         case USB_VENDOR_ID_LOGITECH:
2158                 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2159                                 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2160                         return true;
2161                 /*
2162                  * The Keene FM transmitter USB device has the same USB ID as
2163                  * the Logitech AudioHub Speaker, but it should ignore the hid.
2164                  * Check if the name is that of the Keene device.
2165                  * For reference: the name of the AudioHub is
2166                  * "HOLTEK  AudioHub Speaker".
2167                  */
2168                 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2169                         !strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
2170                                 return true;
2171                 break;
2172         case USB_VENDOR_ID_SOUNDGRAPH:
2173                 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2174                     hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2175                         return true;
2176                 break;
2177         case USB_VENDOR_ID_HANWANG:
2178                 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2179                     hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2180                         return true;
2181                 break;
2182         case USB_VENDOR_ID_JESS:
2183                 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2184                                 hdev->type == HID_TYPE_USBNONE)
2185                         return true;
2186         break;
2187         }
2188
2189         if (hdev->type == HID_TYPE_USBMOUSE &&
2190                         hid_match_id(hdev, hid_mouse_ignore_list))
2191                 return true;
2192
2193         return !!hid_match_id(hdev, hid_ignore_list);
2194 }
2195
2196 int hid_add_device(struct hid_device *hdev)
2197 {
2198         static atomic_t id = ATOMIC_INIT(0);
2199         int ret;
2200
2201         if (WARN_ON(hdev->status & HID_STAT_ADDED))
2202                 return -EBUSY;
2203
2204         /* we need to kill them here, otherwise they will stay allocated to
2205          * wait for coming driver */
2206         if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
2207             && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
2208                 return -ENODEV;
2209
2210         /*
2211          * Read the device report descriptor once and use as template
2212          * for the driver-specific modifications.
2213          */
2214         ret = hdev->ll_driver->parse(hdev);
2215         if (ret)
2216                 return ret;
2217         if (!hdev->dev_rdesc)
2218                 return -ENODEV;
2219
2220         /*
2221          * Scan generic devices for group information
2222          */
2223         if (hid_ignore_special_drivers ||
2224             !hid_match_id(hdev, hid_have_special_driver)) {
2225                 ret = hid_scan_report(hdev);
2226                 if (ret)
2227                         hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2228         }
2229
2230         /* XXX hack, any other cleaner solution after the driver core
2231          * is converted to allow more than 20 bytes as the device name? */
2232         dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2233                      hdev->vendor, hdev->product, atomic_inc_return(&id));
2234
2235         hid_debug_register(hdev, dev_name(&hdev->dev));
2236         ret = device_add(&hdev->dev);
2237         if (!ret)
2238                 hdev->status |= HID_STAT_ADDED;
2239         else
2240                 hid_debug_unregister(hdev);
2241
2242         return ret;
2243 }
2244 EXPORT_SYMBOL_GPL(hid_add_device);
2245
2246 /**
2247  * hid_allocate_device - allocate new hid device descriptor
2248  *
2249  * Allocate and initialize hid device, so that hid_destroy_device might be
2250  * used to free it.
2251  *
2252  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2253  * error value.
2254  */
2255 struct hid_device *hid_allocate_device(void)
2256 {
2257         struct hid_device *hdev;
2258         int ret = -ENOMEM;
2259
2260         hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2261         if (hdev == NULL)
2262                 return ERR_PTR(ret);
2263
2264         device_initialize(&hdev->dev);
2265         hdev->dev.release = hid_device_release;
2266         hdev->dev.bus = &hid_bus_type;
2267
2268         hid_close_report(hdev);
2269
2270         init_waitqueue_head(&hdev->debug_wait);
2271         INIT_LIST_HEAD(&hdev->debug_list);
2272         sema_init(&hdev->driver_lock, 1);
2273
2274         return hdev;
2275 }
2276 EXPORT_SYMBOL_GPL(hid_allocate_device);
2277
2278 static void hid_remove_device(struct hid_device *hdev)
2279 {
2280         if (hdev->status & HID_STAT_ADDED) {
2281                 device_del(&hdev->dev);
2282                 hid_debug_unregister(hdev);
2283                 hdev->status &= ~HID_STAT_ADDED;
2284         }
2285         kfree(hdev->dev_rdesc);
2286         hdev->dev_rdesc = NULL;
2287         hdev->dev_rsize = 0;
2288 }
2289
2290 /**
2291  * hid_destroy_device - free previously allocated device
2292  *
2293  * @hdev: hid device
2294  *
2295  * If you allocate hid_device through hid_allocate_device, you should ever
2296  * free by this function.
2297  */
2298 void hid_destroy_device(struct hid_device *hdev)
2299 {
2300         hid_remove_device(hdev);
2301         put_device(&hdev->dev);
2302 }
2303 EXPORT_SYMBOL_GPL(hid_destroy_device);
2304
2305 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2306                 const char *mod_name)
2307 {
2308         int ret;
2309
2310         hdrv->driver.name = hdrv->name;
2311         hdrv->driver.bus = &hid_bus_type;
2312         hdrv->driver.owner = owner;
2313         hdrv->driver.mod_name = mod_name;
2314
2315         INIT_LIST_HEAD(&hdrv->dyn_list);
2316         spin_lock_init(&hdrv->dyn_lock);
2317
2318         ret = driver_register(&hdrv->driver);
2319         if (ret)
2320                 return ret;
2321
2322         ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2323         if (ret)
2324                 driver_unregister(&hdrv->driver);
2325
2326         return ret;
2327 }
2328 EXPORT_SYMBOL_GPL(__hid_register_driver);
2329
2330 void hid_unregister_driver(struct hid_driver *hdrv)
2331 {
2332         driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2333         driver_unregister(&hdrv->driver);
2334         hid_free_dynids(hdrv);
2335 }
2336 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2337
2338 int hid_check_keys_pressed(struct hid_device *hid)
2339 {
2340         struct hid_input *hidinput;
2341         int i;
2342
2343         if (!(hid->claimed & HID_CLAIMED_INPUT))
2344                 return 0;
2345
2346         list_for_each_entry(hidinput, &hid->inputs, list) {
2347                 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2348                         if (hidinput->input->key[i])
2349                                 return 1;
2350         }
2351
2352         return 0;
2353 }
2354
2355 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2356
2357 static int __init hid_init(void)
2358 {
2359         int ret;
2360
2361         if (hid_debug)
2362                 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2363                         "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2364
2365         ret = bus_register(&hid_bus_type);
2366         if (ret) {
2367                 pr_err("can't register hid bus\n");
2368                 goto err;
2369         }
2370
2371         ret = hidraw_init();
2372         if (ret)
2373                 goto err_bus;
2374
2375         hid_debug_init();
2376
2377         return 0;
2378 err_bus:
2379         bus_unregister(&hid_bus_type);
2380 err:
2381         return ret;
2382 }
2383
2384 static void __exit hid_exit(void)
2385 {
2386         hid_debug_exit();
2387         hidraw_exit();
2388         bus_unregister(&hid_bus_type);
2389 }
2390
2391 module_init(hid_init);
2392 module_exit(hid_exit);
2393
2394 MODULE_AUTHOR("Andreas Gal");
2395 MODULE_AUTHOR("Vojtech Pavlik");
2396 MODULE_AUTHOR("Jiri Kosina");
2397 MODULE_LICENSE(DRIVER_LICENSE);
2398